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TESTING -- override pthreads to fix gstreamer v5
[wine/multimedia.git] / dlls / comctl32 / treeview.c
blob695745c7a86a12e0452a12185fe323e69cbf7f9d
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <assert.h>
47 #include <ctype.h>
48 #include <stdarg.h>
49 #include <string.h>
50 #include <limits.h>
51 #include <stdlib.h>
52
53 #define NONAMELESSUNION
54
55 #include "windef.h"
56 #include "winbase.h"
57 #include "wingdi.h"
58 #include "winuser.h"
59 #include "winnls.h"
60 #include "commctrl.h"
61 #include "comctl32.h"
62 #include "uxtheme.h"
63 #include "vssym32.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66 #include "wine/exception.h"
67
68 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
69
70 /* internal structures */
71 typedef struct tagTREEVIEW_INFO
72 {
73 HWND hwnd;
74 HWND hwndNotify; /* Owner window to send notifications to */
75 DWORD dwStyle;
76 HTREEITEM root;
77 UINT uInternalStatus;
78 INT Timer;
79 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
80 INT cdmode; /* last custom draw setting */
81 UINT uScrollTime; /* max. time for scrolling in milliseconds */
82 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
83
84 UINT uItemHeight; /* item height */
85 BOOL bHeightSet;
86
87 LONG clientWidth; /* width of control window */
88 LONG clientHeight; /* height of control window */
89
90 LONG treeWidth; /* width of visible tree items */
91 LONG treeHeight; /* height of visible tree items */
92
93 UINT uIndent; /* indentation in pixels */
94 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
95 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
96 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
97 HTREEITEM editItem; /* item being edited with builtin edit box */
98
99 HTREEITEM firstVisible; /* handle to first visible item */
100 LONG maxVisibleOrder;
101 HTREEITEM dropItem; /* handle to item selected by drag cursor */
102 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
103 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
104 HIMAGELIST dragList; /* Bitmap of dragged item */
105 LONG scrollX;
106 INT wheelRemainder;
107 COLORREF clrBk;
108 COLORREF clrText;
109 COLORREF clrLine;
110 COLORREF clrInsertMark;
111 HFONT hFont;
112 HFONT hDefaultFont;
113 HFONT hBoldFont;
114 HFONT hUnderlineFont;
115 HFONT hBoldUnderlineFont;
116 HCURSOR hcurHand;
117 HWND hwndToolTip;
118
119 HWND hwndEdit;
120 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
121 BOOL bIgnoreEditKillFocus;
122 BOOL bLabelChanged;
123
124 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
125 HIMAGELIST himlNormal;
126 int normalImageHeight;
127 int normalImageWidth;
128 HIMAGELIST himlState;
129 int stateImageHeight;
130 int stateImageWidth;
131 HDPA items;
132
133 DWORD lastKeyPressTimestamp;
134 WPARAM charCode;
135 INT nSearchParamLength;
136 WCHAR szSearchParam[ MAX_PATH ];
137 } TREEVIEW_INFO;
138
139 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
140 {
141 HTREEITEM parent; /* handle to parent or 0 if at root */
142 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
143 HTREEITEM firstChild; /* handle to first child or 0 if no child */
144
145 UINT callbackMask;
146 UINT state;
147 UINT stateMask;
148 LPWSTR pszText;
149 int cchTextMax;
150 int iImage;
151 int iSelectedImage;
152 int iExpandedImage;
153 int cChildren;
154 LPARAM lParam;
155 int iIntegral; /* item height multiplier (1 is normal) */
156 int iLevel; /* indentation level:0=root level */
157 HTREEITEM lastChild;
158 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
159 RECT rect;
160 LONG linesOffset;
161 LONG stateOffset;
162 LONG imageOffset;
163 LONG textOffset;
164 LONG textWidth; /* horizontal text extent for pszText */
165 LONG visibleOrder; /* visible ordering, 0 is first visible item */
166 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
167 } TREEVIEW_ITEM;
168
169 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
170 #define KEY_DELAY 450
171
172 /* bitflags for infoPtr->uInternalStatus */
173
174 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
175 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
176 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
177 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
178 #define TV_RDRAG 0x10 /* ditto Rbutton */
179 #define TV_RDRAGGING 0x20
180
181 /* bitflags for infoPtr->timer */
182
183 #define TV_EDIT_TIMER 2
184 #define TV_EDIT_TIMER_SET 2
185
186 #define TEXT_CALLBACK_SIZE 260
187
188 #define TREEVIEW_LEFT_MARGIN 8
189
190 #define MINIMUM_INDENT 19
191
192 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
193
194 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
195 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
196 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
197
198 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
199 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
200 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
201 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
202
203 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
204
205
206 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
207
208
209 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
210
211 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
212 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
213 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
214 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
215 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
216 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
217
218 /* Random Utilities *****************************************************/
219 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
220
221 /* Returns the treeview private data if hwnd is a treeview.
222 * Otherwise returns an undefined value. */
223 static inline TREEVIEW_INFO *
224 TREEVIEW_GetInfoPtr(HWND hwnd)
225 {
226 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
227 }
228
229 /* Don't call this. Nothing wants an item index. */
230 static inline int
231 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
232 {
233 return DPA_GetPtrIndex(infoPtr->items, handle);
234 }
235
236 /* Checks if item has changed and needs to be redrawn */
237 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
238 const TVITEMEXW *tvChange)
239 {
240 /* Number of children has changed */
241 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
242 return TRUE;
243
244 /* Image has changed and it's not a callback */
245 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
246 tiNew->iImage != I_IMAGECALLBACK)
247 return TRUE;
248
249 /* Selected image has changed and it's not a callback */
250 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
251 tiNew->iSelectedImage != I_IMAGECALLBACK)
252 return TRUE;
253
254 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
255 tiNew->iExpandedImage != I_IMAGECALLBACK)
256 return TRUE;
257
258 /* Text has changed and it's not a callback */
259 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
260 tiNew->pszText != LPSTR_TEXTCALLBACKW)
261 return TRUE;
262
263 /* Indent has changed */
264 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
265 return TRUE;
266
267 /* Item state has changed */
268 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
269 return TRUE;
270
271 return FALSE;
272 }
273
274 /***************************************************************************
275 * This method checks that handle is an item for this tree.
276 */
277 static BOOL
278 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
279 {
280 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
281 {
282 TRACE("invalid item %p\n", handle);
283 return FALSE;
284 }
285 else
286 return TRUE;
287 }
288
289 static HFONT
290 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
291 {
292 LOGFONTW font;
293
294 GetObjectW(hOrigFont, sizeof(font), &font);
295 font.lfWeight = FW_BOLD;
296 return CreateFontIndirectW(&font);
297 }
298
299 static HFONT
300 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
301 {
302 LOGFONTW font;
303
304 GetObjectW(hOrigFont, sizeof(font), &font);
305 font.lfUnderline = TRUE;
306 return CreateFontIndirectW(&font);
307 }
308
309 static HFONT
310 TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
311 {
312 LOGFONTW font;
313
314 GetObjectW(hfont, sizeof(font), &font);
315 font.lfWeight = FW_BOLD;
316 font.lfUnderline = TRUE;
317 return CreateFontIndirectW(&font);
318 }
319
320 static inline HFONT
321 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
322 {
323 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
324 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
325 if (item->state & TVIS_BOLD)
326 return infoPtr->hBoldFont;
327 return infoPtr->hFont;
328 }
329
330 /* for trace/debugging purposes only */
331 static const char *
332 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
333 {
334 if (item == NULL) return "<null item>";
335 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
336 if (item->pszText == NULL) return "<null>";
337 return debugstr_w(item->pszText);
338 }
339
340 /* An item is not a child of itself. */
341 static BOOL
342 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
343 {
344 do
345 {
346 child = child->parent;
347 if (child == parent) return TRUE;
348 } while (child != NULL);
349
350 return FALSE;
351 }
352
353
354 /* Tree Traversal *******************************************************/
355
356 /***************************************************************************
357 * This method returns the last expanded sibling or child child item
358 * of a tree node
359 */
360 static TREEVIEW_ITEM *
361 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
362 {
363 if (!item) return NULL;
364
365 while (item->lastChild)
366 {
367 if (item->state & TVIS_EXPANDED)
368 item = item->lastChild;
369 else
370 break;
371 }
372
373 if (item == infoPtr->root)
374 return NULL;
375
376 return item;
377 }
378
379 /***************************************************************************
380 * This method returns the previous non-hidden item in the list not
381 * considering the tree hierarchy.
382 */
383 static TREEVIEW_ITEM *
384 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
385 {
386 if (tvItem->prevSibling)
387 {
388 /* This item has a prevSibling, get the last item in the sibling's tree. */
389 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
390
391 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
392 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
393 else
394 return upItem;
395 }
396 else
397 {
398 /* this item does not have a prevSibling, get the parent */
399 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
400 }
401 }
402
403
404 /***************************************************************************
405 * This method returns the next physical item in the treeview not
406 * considering the tree hierarchy.
407 */
408 static TREEVIEW_ITEM *
409 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
410 {
411 /*
412 * If this item has children and is expanded, return the first child
413 */
414 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
415 {
416 return tvItem->firstChild;
417 }
418
419
420 /*
421 * try to get the sibling
422 */
423 if (tvItem->nextSibling)
424 return tvItem->nextSibling;
425
426 /*
427 * Otherwise, get the parent's sibling.
428 */
429 while (tvItem->parent)
430 {
431 tvItem = tvItem->parent;
432
433 if (tvItem->nextSibling)
434 return tvItem->nextSibling;
435 }
436
437 return NULL;
438 }
439
440 /***************************************************************************
441 * This method returns the nth item starting at the given item. It returns
442 * the last item (or first) we we run out of items.
443 *
444 * Will scroll backward if count is <0.
445 * forward if count is >0.
446 */
447 static TREEVIEW_ITEM *
448 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
449 LONG count)
450 {
451 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
452 TREEVIEW_ITEM *previousItem;
453
454 assert(item != NULL);
455
456 if (count > 0)
457 {
458 next_item = TREEVIEW_GetNextListItem;
459 }
460 else if (count < 0)
461 {
462 count = -count;
463 next_item = TREEVIEW_GetPrevListItem;
464 }
465 else
466 return item;
467
468 do
469 {
470 previousItem = item;
471 item = next_item(infoPtr, item);
472
473 } while (--count && item != NULL);
474
475
476 return item ? item : previousItem;
477 }
478
479 /* Notifications ************************************************************/
480
481 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
482 {
483 if (!infoPtr->bNtfUnicode) {
484 switch (code) {
485 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
486 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
487 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
488 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
489 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
490 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
491 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
492 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
493 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
494 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
495 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
496 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
497 }
498 }
499 return code;
500 }
501
502 static inline BOOL
503 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
504 {
505 TRACE("code=%d, hdr=%p\n", code, hdr);
506
507 hdr->hwndFrom = infoPtr->hwnd;
508 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
509 hdr->code = get_notifycode(infoPtr, code);
510
511 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
512 }
513
514 static BOOL
515 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
516 {
517 NMHDR hdr;
518 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
519 }
520
521 static VOID
522 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
523 {
524 tvItem->mask = mask;
525 tvItem->hItem = item;
526 tvItem->state = item->state;
527 tvItem->stateMask = 0;
528 tvItem->iImage = item->iImage;
529 tvItem->iSelectedImage = item->iSelectedImage;
530 tvItem->cChildren = item->cChildren;
531 tvItem->lParam = item->lParam;
532
533 if(mask & TVIF_TEXT)
534 {
535 if (!infoPtr->bNtfUnicode)
536 {
537 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
538 tvItem->pszText = Alloc (tvItem->cchTextMax);
539 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
540 }
541 else
542 {
543 tvItem->cchTextMax = item->cchTextMax;
544 tvItem->pszText = item->pszText;
545 }
546 }
547 else
548 {
549 tvItem->cchTextMax = 0;
550 tvItem->pszText = NULL;
551 }
552 }
553
554 static BOOL
555 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
556 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
557 {
558 NMTREEVIEWW nmhdr;
559 BOOL ret;
560
561 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
562 code, action, oldItem, newItem);
563
564 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
565 nmhdr.action = action;
566
567 if (oldItem)
568 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
569
570 if (newItem)
571 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
572
573 nmhdr.ptDrag.x = 0;
574 nmhdr.ptDrag.y = 0;
575
576 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
577 if (!infoPtr->bNtfUnicode)
578 {
579 Free(nmhdr.itemOld.pszText);
580 Free(nmhdr.itemNew.pszText);
581 }
582 return ret;
583 }
584
585 static BOOL
586 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
587 HTREEITEM dragItem, POINT pt)
588 {
589 NMTREEVIEWW nmhdr;
590
591 TRACE("code:%d dragitem:%p\n", code, dragItem);
592
593 nmhdr.action = 0;
594 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
595 nmhdr.itemNew.hItem = dragItem;
596 nmhdr.itemNew.state = dragItem->state;
597 nmhdr.itemNew.lParam = dragItem->lParam;
598
599 nmhdr.ptDrag.x = pt.x;
600 nmhdr.ptDrag.y = pt.y;
601
602 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
603 }
604
605
606 static BOOL
607 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
608 HDC hdc, RECT rc)
609 {
610 NMTVCUSTOMDRAW nmcdhdr;
611 NMCUSTOMDRAW *nmcd;
612
613 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
614
615 nmcd = &nmcdhdr.nmcd;
616 nmcd->dwDrawStage = dwDrawStage;
617 nmcd->hdc = hdc;
618 nmcd->rc = rc;
619 nmcd->dwItemSpec = 0;
620 nmcd->uItemState = 0;
621 nmcd->lItemlParam = 0;
622 nmcdhdr.clrText = infoPtr->clrText;
623 nmcdhdr.clrTextBk = infoPtr->clrBk;
624 nmcdhdr.iLevel = 0;
625
626 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
627 }
628
629 /* FIXME: need to find out when the flags in uItemState need to be set */
630
631 static BOOL
632 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
633 TREEVIEW_ITEM *item, UINT uItemDrawState,
634 NMTVCUSTOMDRAW *nmcdhdr)
635 {
636 NMCUSTOMDRAW *nmcd;
637 DWORD dwDrawStage;
638 DWORD_PTR dwItemSpec;
639 UINT uItemState;
640
641 dwDrawStage = CDDS_ITEM | uItemDrawState;
642 dwItemSpec = (DWORD_PTR)item;
643 uItemState = 0;
644 if (item->state & TVIS_SELECTED)
645 uItemState |= CDIS_SELECTED;
646 if (item == infoPtr->selectedItem)
647 uItemState |= CDIS_FOCUS;
648 if (item == infoPtr->hotItem)
649 uItemState |= CDIS_HOT;
650
651 nmcd = &nmcdhdr->nmcd;
652 nmcd->dwDrawStage = dwDrawStage;
653 nmcd->hdc = hdc;
654 nmcd->rc = item->rect;
655 nmcd->dwItemSpec = dwItemSpec;
656 nmcd->uItemState = uItemState;
657 nmcd->lItemlParam = item->lParam;
658 nmcdhdr->iLevel = item->iLevel;
659
660 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
661 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
662 nmcd->uItemState, nmcd->lItemlParam);
663
664 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
665 }
666
667 static BOOL
668 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
669 {
670 NMTVDISPINFOW tvdi;
671 BOOL ret;
672
673 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
674 &tvdi.item, editItem);
675
676 ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
677
678 if (!infoPtr->bNtfUnicode)
679 Free(tvdi.item.pszText);
680
681 return ret;
682 }
683
684 static void
685 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
686 UINT mask)
687 {
688 NMTVDISPINFOEXW callback;
689
690 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
691 mask &= item->callbackMask;
692
693 if (mask == 0) return;
694
695 /* 'state' always contains valid value, as well as 'lParam'.
696 * All other parameters are uninitialized.
697 */
698 callback.item.pszText = item->pszText;
699 callback.item.cchTextMax = item->cchTextMax;
700 callback.item.mask = mask;
701 callback.item.hItem = item;
702 callback.item.state = item->state;
703 callback.item.lParam = item->lParam;
704
705 /* If text is changed we need to recalculate textWidth */
706 if (mask & TVIF_TEXT)
707 item->textWidth = 0;
708
709 TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
710 TRACE("resulting code 0x%08x\n", callback.hdr.code);
711
712 /* It may have changed due to a call to SetItem. */
713 mask &= item->callbackMask;
714
715 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
716 {
717 /* Instead of copying text into our buffer user specified his own */
718 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
719 LPWSTR newText;
720 int buflen;
721 int len = MultiByteToWideChar( CP_ACP, 0,
722 (LPSTR)callback.item.pszText, -1,
723 NULL, 0);
724 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
725 newText = ReAlloc(item->pszText, buflen);
726
727 TRACE("returned str %s, len=%d, buflen=%d\n",
728 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
729
730 if (newText)
731 {
732 item->pszText = newText;
733 MultiByteToWideChar( CP_ACP, 0,
734 (LPSTR)callback.item.pszText, -1,
735 item->pszText, buflen/sizeof(WCHAR));
736 item->cchTextMax = buflen/sizeof(WCHAR);
737 }
738 /* If ReAlloc fails we have nothing to do, but keep original text */
739 }
740 else {
741 int len = max(lstrlenW(callback.item.pszText) + 1,
742 TEXT_CALLBACK_SIZE);
743 LPWSTR newText = ReAlloc(item->pszText, len);
744
745 TRACE("returned wstr %s, len=%d\n",
746 debugstr_w(callback.item.pszText), len);
747
748 if (newText)
749 {
750 item->pszText = newText;
751 strcpyW(item->pszText, callback.item.pszText);
752 item->cchTextMax = len;
753 }
754 /* If ReAlloc fails we have nothing to do, but keep original text */
755 }
756 }
757 else if (mask & TVIF_TEXT) {
758 /* User put text into our buffer, that is ok unless A string */
759 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
760 LPWSTR newText;
761 int buflen;
762 int len = MultiByteToWideChar( CP_ACP, 0,
763 (LPSTR)callback.item.pszText, -1,
764 NULL, 0);
765 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
766 newText = Alloc(buflen);
767
768 TRACE("same buffer str %s, len=%d, buflen=%d\n",
769 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
770
771 if (newText)
772 {
773 LPWSTR oldText = item->pszText;
774 item->pszText = newText;
775 MultiByteToWideChar( CP_ACP, 0,
776 (LPSTR)callback.item.pszText, -1,
777 item->pszText, buflen/sizeof(WCHAR));
778 item->cchTextMax = buflen/sizeof(WCHAR);
779 Free(oldText);
780 }
781 }
782 }
783
784 if (mask & TVIF_IMAGE)
785 item->iImage = callback.item.iImage;
786
787 if (mask & TVIF_SELECTEDIMAGE)
788 item->iSelectedImage = callback.item.iSelectedImage;
789
790 if (mask & TVIF_EXPANDEDIMAGE)
791 item->iExpandedImage = callback.item.iExpandedImage;
792
793 if (mask & TVIF_CHILDREN)
794 item->cChildren = callback.item.cChildren;
795
796 if (callback.item.mask & TVIF_STATE)
797 {
798 item->state &= ~callback.item.stateMask;
799 item->state |= (callback.item.state & callback.item.stateMask);
800 }
801
802 /* These members are now permanently set. */
803 if (callback.item.mask & TVIF_DI_SETITEM)
804 item->callbackMask &= ~callback.item.mask;
805 }
806
807 /***************************************************************************
808 * This function uses cChildren field to decide whether the item has
809 * children or not.
810 * Note: if this returns TRUE, the child items may not actually exist,
811 * they could be virtual.
812 *
813 * Just use item->firstChild to check for physical children.
814 */
815 static BOOL
816 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
817 {
818 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
819 /* Protect for a case when callback field is not changed by a host,
820 otherwise negative values trigger normal notifications. */
821 return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
822 }
823
824 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
825 {
826 INT format;
827
828 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
829
830 if (nCommand != NF_REQUERY) return 0;
831
832 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
833 TRACE("format=%d\n", format);
834
835 /* Invalid format returned by NF_QUERY defaults to ANSI*/
836 if (format != NFR_ANSI && format != NFR_UNICODE)
837 format = NFR_ANSI;
838
839 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
840
841 return format;
842 }
843
844 /* Item Position ********************************************************/
845
846 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
847 static VOID
848 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
849 {
850 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
851 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
852 > TVS_LINESATROOT);
853
854 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
855 - infoPtr->scrollX;
856 item->stateOffset = item->linesOffset + infoPtr->uIndent;
857 item->imageOffset = item->stateOffset
858 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
859 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
860 }
861
862 static VOID
863 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
864 {
865 HDC hdc;
866 HFONT hOldFont=0;
867 SIZE sz;
868
869 /* DRAW's OM docker creates items like this */
870 if (item->pszText == NULL)
871 {
872 item->textWidth = 0;
873 return;
874 }
875
876 if (hDC != 0)
877 {
878 hdc = hDC;
879 }
880 else
881 {
882 hdc = GetDC(infoPtr->hwnd);
883 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
884 }
885
886 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
887 item->textWidth = sz.cx;
888
889 if (hDC == 0)
890 {
891 SelectObject(hdc, hOldFont);
892 ReleaseDC(0, hdc);
893 }
894 }
895
896 static VOID
897 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
898 {
899 item->rect.top = infoPtr->uItemHeight *
900 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
901
902 item->rect.bottom = item->rect.top
903 + infoPtr->uItemHeight * item->iIntegral - 1;
904
905 item->rect.left = 0;
906 item->rect.right = infoPtr->clientWidth;
907 }
908
909 /* We know that only items after start need their order updated. */
910 static void
911 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
912 {
913 TREEVIEW_ITEM *item;
914 int order;
915
916 if (!start)
917 {
918 start = infoPtr->root->firstChild;
919 order = 0;
920 }
921 else
922 order = start->visibleOrder;
923
924 for (item = start; item != NULL;
925 item = TREEVIEW_GetNextListItem(infoPtr, item))
926 {
927 if (!ISVISIBLE(item) && order > 0)
928 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
929 item->visibleOrder = order;
930 order += item->iIntegral;
931 }
932
933 infoPtr->maxVisibleOrder = order;
934
935 for (item = start; item != NULL;
936 item = TREEVIEW_GetNextListItem(infoPtr, item))
937 {
938 TREEVIEW_ComputeItemRect(infoPtr, item);
939 }
940 }
941
942
943 /* Update metrics of all items in selected subtree.
944 * root must be expanded
945 */
946 static VOID
947 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
948 {
949 TREEVIEW_ITEM *sibling;
950 HDC hdc;
951 HFONT hOldFont;
952
953 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
954 return;
955
956 root->state &= ~TVIS_EXPANDED;
957 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
958 root->state |= TVIS_EXPANDED;
959
960 hdc = GetDC(infoPtr->hwnd);
961 hOldFont = SelectObject(hdc, infoPtr->hFont);
962
963 for (; root != sibling;
964 root = TREEVIEW_GetNextListItem(infoPtr, root))
965 {
966 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
967
968 if (root->callbackMask & TVIF_TEXT)
969 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
970
971 if (root->textWidth == 0)
972 {
973 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
974 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
975 }
976 }
977
978 SelectObject(hdc, hOldFont);
979 ReleaseDC(infoPtr->hwnd, hdc);
980 }
981
982 /* Item Allocation **********************************************************/
983
984 static TREEVIEW_ITEM *
985 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
986 {
987 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
988
989 if (!newItem)
990 return NULL;
991
992 /* I_IMAGENONE would make more sense but this is neither what is
993 * documented (MSDN doesn't specify) nor what Windows actually does
994 * (it sets it to zero)... and I can so imagine an application using
995 * inc/dec to toggle the images. */
996 newItem->iImage = 0;
997 newItem->iSelectedImage = 0;
998 newItem->iExpandedImage = (WORD)I_IMAGENONE;
999 newItem->infoPtr = infoPtr;
1000
1001 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1002 {
1003 Free(newItem);
1004 return NULL;
1005 }
1006
1007 return newItem;
1008 }
1009
1010 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1011 * free item->pszText. */
1012 static void
1013 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1014 {
1015 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1016 if (infoPtr->selectedItem == item)
1017 infoPtr->selectedItem = NULL;
1018 if (infoPtr->hotItem == item)
1019 infoPtr->hotItem = NULL;
1020 if (infoPtr->focusedItem == item)
1021 infoPtr->focusedItem = NULL;
1022 if (infoPtr->firstVisible == item)
1023 infoPtr->firstVisible = NULL;
1024 if (infoPtr->dropItem == item)
1025 infoPtr->dropItem = NULL;
1026 if (infoPtr->insertMarkItem == item)
1027 infoPtr->insertMarkItem = NULL;
1028 Free(item);
1029 }
1030
1031
1032 /* Item Insertion *******************************************************/
1033
1034 /***************************************************************************
1035 * This method inserts newItem before sibling as a child of parent.
1036 * sibling can be NULL, but only if parent has no children.
1037 */
1038 static void
1039 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1040 TREEVIEW_ITEM *parent)
1041 {
1042 assert(parent != NULL);
1043
1044 if (sibling != NULL)
1045 {
1046 assert(sibling->parent == parent);
1047
1048 if (sibling->prevSibling != NULL)
1049 sibling->prevSibling->nextSibling = newItem;
1050
1051 newItem->prevSibling = sibling->prevSibling;
1052 sibling->prevSibling = newItem;
1053 }
1054 else
1055 newItem->prevSibling = NULL;
1056
1057 newItem->nextSibling = sibling;
1058
1059 if (parent->firstChild == sibling)
1060 parent->firstChild = newItem;
1061
1062 if (parent->lastChild == NULL)
1063 parent->lastChild = newItem;
1064 }
1065
1066 /***************************************************************************
1067 * This method inserts newItem after sibling as a child of parent.
1068 * sibling can be NULL, but only if parent has no children.
1069 */
1070 static void
1071 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1072 TREEVIEW_ITEM *parent)
1073 {
1074 assert(parent != NULL);
1075
1076 if (sibling != NULL)
1077 {
1078 assert(sibling->parent == parent);
1079
1080 if (sibling->nextSibling != NULL)
1081 sibling->nextSibling->prevSibling = newItem;
1082
1083 newItem->nextSibling = sibling->nextSibling;
1084 sibling->nextSibling = newItem;
1085 }
1086 else
1087 newItem->nextSibling = NULL;
1088
1089 newItem->prevSibling = sibling;
1090
1091 if (parent->lastChild == sibling)
1092 parent->lastChild = newItem;
1093
1094 if (parent->firstChild == NULL)
1095 parent->firstChild = newItem;
1096 }
1097
1098 static BOOL
1099 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1100 const TVITEMEXW *tvItem, BOOL isW)
1101 {
1102 UINT callbackClear = 0;
1103 UINT callbackSet = 0;
1104
1105 TRACE("item %p\n", item);
1106 /* Do this first in case it fails. */
1107 if (tvItem->mask & TVIF_TEXT)
1108 {
1109 item->textWidth = 0; /* force width recalculation */
1110 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1111 {
1112 int len;
1113 LPWSTR newText;
1114 if (isW)
1115 len = lstrlenW(tvItem->pszText) + 1;
1116 else
1117 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1118
1119 newText = ReAlloc(item->pszText, len * sizeof(WCHAR));
1120
1121 if (newText == NULL) return FALSE;
1122
1123 callbackClear |= TVIF_TEXT;
1124
1125 item->pszText = newText;
1126 item->cchTextMax = len;
1127 if (isW)
1128 lstrcpynW(item->pszText, tvItem->pszText, len);
1129 else
1130 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1131 item->pszText, len);
1132
1133 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1134 }
1135 else
1136 {
1137 callbackSet |= TVIF_TEXT;
1138
1139 item->pszText = ReAlloc(item->pszText,
1140 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1141 item->cchTextMax = TEXT_CALLBACK_SIZE;
1142 TRACE("setting callback, item %p\n", item);
1143 }
1144 }
1145
1146 if (tvItem->mask & TVIF_CHILDREN)
1147 {
1148 item->cChildren = tvItem->cChildren;
1149
1150 if (item->cChildren == I_CHILDRENCALLBACK)
1151 callbackSet |= TVIF_CHILDREN;
1152 else
1153 callbackClear |= TVIF_CHILDREN;
1154 }
1155
1156 if (tvItem->mask & TVIF_IMAGE)
1157 {
1158 item->iImage = tvItem->iImage;
1159
1160 if (item->iImage == I_IMAGECALLBACK)
1161 callbackSet |= TVIF_IMAGE;
1162 else
1163 callbackClear |= TVIF_IMAGE;
1164 }
1165
1166 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1167 {
1168 item->iSelectedImage = tvItem->iSelectedImage;
1169
1170 if (item->iSelectedImage == I_IMAGECALLBACK)
1171 callbackSet |= TVIF_SELECTEDIMAGE;
1172 else
1173 callbackClear |= TVIF_SELECTEDIMAGE;
1174 }
1175
1176 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1177 {
1178 item->iExpandedImage = tvItem->iExpandedImage;
1179
1180 if (item->iExpandedImage == I_IMAGECALLBACK)
1181 callbackSet |= TVIF_EXPANDEDIMAGE;
1182 else
1183 callbackClear |= TVIF_EXPANDEDIMAGE;
1184 }
1185
1186 if (tvItem->mask & TVIF_PARAM)
1187 item->lParam = tvItem->lParam;
1188
1189 /* If the application sets TVIF_INTEGRAL without
1190 * supplying a TVITEMEX structure, it's toast. */
1191 if (tvItem->mask & TVIF_INTEGRAL)
1192 item->iIntegral = tvItem->iIntegral;
1193
1194 if (tvItem->mask & TVIF_STATE)
1195 {
1196 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1197 tvItem->stateMask);
1198 item->state &= ~tvItem->stateMask;
1199 item->state |= (tvItem->state & tvItem->stateMask);
1200 }
1201
1202 if (tvItem->mask & TVIF_STATEEX)
1203 {
1204 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1205 }
1206
1207 item->callbackMask |= callbackSet;
1208 item->callbackMask &= ~callbackClear;
1209
1210 return TRUE;
1211 }
1212
1213 /* Note that the new item is pre-zeroed. */
1214 static LRESULT
1215 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1216 {
1217 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1218 HTREEITEM insertAfter;
1219 TREEVIEW_ITEM *newItem, *parentItem;
1220 BOOL bTextUpdated = FALSE;
1221
1222 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1223 {
1224 parentItem = infoPtr->root;
1225 }
1226 else
1227 {
1228 parentItem = ptdi->hParent;
1229
1230 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1231 {
1232 WARN("invalid parent %p\n", parentItem);
1233 return 0;
1234 }
1235 }
1236
1237 insertAfter = ptdi->hInsertAfter;
1238
1239 /* Validate this now for convenience. */
1240 switch ((DWORD_PTR)insertAfter)
1241 {
1242 case (DWORD_PTR)TVI_FIRST:
1243 case (DWORD_PTR)TVI_LAST:
1244 case (DWORD_PTR)TVI_SORT:
1245 break;
1246
1247 default:
1248 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1249 insertAfter->parent != parentItem)
1250 {
1251 WARN("invalid insert after %p\n", insertAfter);
1252 insertAfter = TVI_LAST;
1253 }
1254 }
1255
1256 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1257 (tvItem->mask & TVIF_TEXT)
1258 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1259 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1260 : "<no label>");
1261
1262 newItem = TREEVIEW_AllocateItem(infoPtr);
1263 if (newItem == NULL)
1264 return 0;
1265
1266 newItem->parent = parentItem;
1267 newItem->iIntegral = 1;
1268 newItem->visibleOrder = -1;
1269
1270 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1271 return 0;
1272
1273 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1274
1275 infoPtr->uNumItems++;
1276
1277 switch ((DWORD_PTR)insertAfter)
1278 {
1279 case (DWORD_PTR)TVI_FIRST:
1280 {
1281 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1282 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1283 if (infoPtr->firstVisible == originalFirst)
1284 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1285 }
1286 break;
1287
1288 case (DWORD_PTR)TVI_LAST:
1289 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1290 break;
1291
1292 /* hInsertAfter names a specific item we want to insert after */
1293 default:
1294 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1295 break;
1296
1297 case (DWORD_PTR)TVI_SORT:
1298 {
1299 TREEVIEW_ITEM *aChild;
1300 TREEVIEW_ITEM *previousChild = NULL;
1301 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1302 BOOL bItemInserted = FALSE;
1303
1304 aChild = parentItem->firstChild;
1305
1306 bTextUpdated = TRUE;
1307 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1308
1309 /* Iterate the parent children to see where we fit in */
1310 while (aChild != NULL)
1311 {
1312 INT comp;
1313
1314 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1315 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1316
1317 if (comp < 0) /* we are smaller than the current one */
1318 {
1319 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1320 if (infoPtr->firstVisible == originalFirst &&
1321 aChild == originalFirst)
1322 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1323 bItemInserted = TRUE;
1324 break;
1325 }
1326 else if (comp > 0) /* we are bigger than the current one */
1327 {
1328 previousChild = aChild;
1329
1330 /* This will help us to exit if there is no more sibling */
1331 aChild = (aChild->nextSibling == 0)
1332 ? NULL
1333 : aChild->nextSibling;
1334
1335 /* Look at the next item */
1336 continue;
1337 }
1338 else if (comp == 0)
1339 {
1340 /*
1341 * An item with this name is already existing, therefore,
1342 * we add after the one we found
1343 */
1344 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1345 bItemInserted = TRUE;
1346 break;
1347 }
1348 }
1349
1350 /*
1351 * we reach the end of the child list and the item has not
1352 * yet been inserted, therefore, insert it after the last child.
1353 */
1354 if ((!bItemInserted) && (aChild == NULL))
1355 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1356
1357 break;
1358 }
1359 }
1360
1361
1362 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1363 newItem->parent, tvItem->mask);
1364
1365 newItem->iLevel = newItem->parent->iLevel + 1;
1366
1367 if (newItem->parent->cChildren == 0)
1368 newItem->parent->cChildren = 1;
1369
1370 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1371 {
1372 if (STATEIMAGEINDEX(newItem->state) == 0)
1373 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1374 }
1375
1376 if (infoPtr->firstVisible == NULL)
1377 infoPtr->firstVisible = newItem;
1378
1379 TREEVIEW_VerifyTree(infoPtr);
1380
1381 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1382
1383 if (parentItem == infoPtr->root ||
1384 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1385 {
1386 TREEVIEW_ITEM *item;
1387 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1388
1389 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1390 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1391
1392 if (!bTextUpdated)
1393 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1394
1395 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1396 TREEVIEW_UpdateScrollBars(infoPtr);
1397 /*
1398 * if the item was inserted in a visible part of the tree,
1399 * invalidate it, as well as those after it
1400 */
1401 for (item = newItem;
1402 item != NULL;
1403 item = TREEVIEW_GetNextListItem(infoPtr, item))
1404 TREEVIEW_Invalidate(infoPtr, item);
1405 }
1406 else
1407 {
1408 /* refresh treeview if newItem is the first item inserted under parentItem */
1409 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1410 {
1411 /* parent got '+' - update it */
1412 TREEVIEW_Invalidate(infoPtr, parentItem);
1413 }
1414 }
1415
1416 return (LRESULT)newItem;
1417 }
1418
1419 /* Item Deletion ************************************************************/
1420 static void
1421 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1422
1423 static void
1424 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1425 {
1426 TREEVIEW_ITEM *kill = parentItem->firstChild;
1427
1428 while (kill != NULL)
1429 {
1430 TREEVIEW_ITEM *next = kill->nextSibling;
1431
1432 TREEVIEW_RemoveItem(infoPtr, kill);
1433
1434 kill = next;
1435 }
1436
1437 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1438 assert(parentItem->firstChild == NULL);
1439 assert(parentItem->lastChild == NULL);
1440 }
1441
1442 static void
1443 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1444 {
1445 TREEVIEW_ITEM *parentItem;
1446
1447 assert(item != NULL);
1448 assert(item->parent != NULL); /* i.e. it must not be the root */
1449
1450 parentItem = item->parent;
1451
1452 if (parentItem->firstChild == item)
1453 parentItem->firstChild = item->nextSibling;
1454
1455 if (parentItem->lastChild == item)
1456 parentItem->lastChild = item->prevSibling;
1457
1458 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1459 && parentItem->cChildren > 0)
1460 parentItem->cChildren = 0;
1461
1462 if (item->prevSibling)
1463 item->prevSibling->nextSibling = item->nextSibling;
1464
1465 if (item->nextSibling)
1466 item->nextSibling->prevSibling = item->prevSibling;
1467 }
1468
1469 static void
1470 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1471 {
1472 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1473
1474 if (item->firstChild)
1475 TREEVIEW_RemoveAllChildren(infoPtr, item);
1476
1477 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1478 TVIF_HANDLE | TVIF_PARAM, item, 0);
1479
1480 TREEVIEW_UnlinkItem(item);
1481
1482 infoPtr->uNumItems--;
1483
1484 if (item->pszText != LPSTR_TEXTCALLBACKW)
1485 Free(item->pszText);
1486
1487 TREEVIEW_FreeItem(infoPtr, item);
1488 }
1489
1490
1491 /* Empty out the tree. */
1492 static void
1493 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1494 {
1495 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1496
1497 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1498 }
1499
1500 static LRESULT
1501 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1502 {
1503 TREEVIEW_ITEM *newSelection = NULL;
1504 TREEVIEW_ITEM *newFirstVisible = NULL;
1505 TREEVIEW_ITEM *parent, *prev = NULL;
1506 BOOL visible = FALSE;
1507
1508 if (item == TVI_ROOT || !item)
1509 {
1510 TRACE("TVI_ROOT\n");
1511 parent = infoPtr->root;
1512 newSelection = NULL;
1513 visible = TRUE;
1514 TREEVIEW_RemoveTree(infoPtr);
1515 }
1516 else
1517 {
1518 if (!TREEVIEW_ValidItem(infoPtr, item))
1519 return FALSE;
1520
1521 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1522 parent = item->parent;
1523
1524 if (ISVISIBLE(item))
1525 {
1526 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1527 visible = TRUE;
1528 }
1529
1530 if (infoPtr->selectedItem != NULL
1531 && (item == infoPtr->selectedItem
1532 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1533 {
1534 if (item->nextSibling)
1535 newSelection = item->nextSibling;
1536 else if (item->parent != infoPtr->root)
1537 newSelection = item->parent;
1538 else
1539 newSelection = item->prevSibling;
1540 TRACE("newSelection = %p\n", newSelection);
1541 }
1542
1543 if (infoPtr->firstVisible == item)
1544 {
1545 if (item->nextSibling)
1546 newFirstVisible = item->nextSibling;
1547 else if (item->prevSibling)
1548 newFirstVisible = item->prevSibling;
1549 else if (item->parent != infoPtr->root)
1550 newFirstVisible = item->parent;
1551 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1552 }
1553 else
1554 newFirstVisible = infoPtr->firstVisible;
1555
1556 TREEVIEW_RemoveItem(infoPtr, item);
1557 }
1558
1559 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1560 if (!infoPtr->selectedItem && newSelection)
1561 {
1562 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1563 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1564 }
1565
1566 /* Validate insertMark dropItem.
1567 * hotItem ??? - used for comparison only.
1568 */
1569 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1570 infoPtr->insertMarkItem = 0;
1571
1572 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1573 infoPtr->dropItem = 0;
1574
1575 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1576 newFirstVisible = infoPtr->root->firstChild;
1577
1578 TREEVIEW_VerifyTree(infoPtr);
1579
1580 if (!infoPtr->bRedraw) return TRUE;
1581
1582 if (visible)
1583 {
1584 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1585 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1586 TREEVIEW_UpdateScrollBars(infoPtr);
1587 TREEVIEW_Invalidate(infoPtr, NULL);
1588 }
1589 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1590 {
1591 /* parent lost '+/-' - update it */
1592 TREEVIEW_Invalidate(infoPtr, parent);
1593 }
1594
1595 return TRUE;
1596 }
1597
1598
1599 /* Get/Set Messages *********************************************************/
1600 static LRESULT
1601 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1602 {
1603 infoPtr->bRedraw = wParam != 0;
1604
1605 if (infoPtr->bRedraw)
1606 {
1607 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1608 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1609 TREEVIEW_UpdateScrollBars(infoPtr);
1610 TREEVIEW_Invalidate(infoPtr, NULL);
1611 }
1612 return 0;
1613 }
1614
1615 static LRESULT
1616 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1617 {
1618 TRACE("\n");
1619 return infoPtr->uIndent;
1620 }
1621
1622 static LRESULT
1623 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1624 {
1625 TRACE("\n");
1626
1627 if (newIndent < MINIMUM_INDENT)
1628 newIndent = MINIMUM_INDENT;
1629
1630 if (infoPtr->uIndent != newIndent)
1631 {
1632 infoPtr->uIndent = newIndent;
1633 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1634 TREEVIEW_UpdateScrollBars(infoPtr);
1635 TREEVIEW_Invalidate(infoPtr, NULL);
1636 }
1637
1638 return 0;
1639 }
1640
1641
1642 static LRESULT
1643 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1644 {
1645 TRACE("\n");
1646 return (LRESULT)infoPtr->hwndToolTip;
1647 }
1648
1649 static LRESULT
1650 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1651 {
1652 HWND prevToolTip;
1653
1654 TRACE("\n");
1655 prevToolTip = infoPtr->hwndToolTip;
1656 infoPtr->hwndToolTip = hwndTT;
1657
1658 return (LRESULT)prevToolTip;
1659 }
1660
1661 static LRESULT
1662 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1663 {
1664 BOOL rc = infoPtr->bNtfUnicode;
1665 infoPtr->bNtfUnicode = fUnicode;
1666 return rc;
1667 }
1668
1669 static LRESULT
1670 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1671 {
1672 return infoPtr->bNtfUnicode;
1673 }
1674
1675 static LRESULT
1676 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1677 {
1678 return infoPtr->uScrollTime;
1679 }
1680
1681 static LRESULT
1682 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1683 {
1684 UINT uOldScrollTime = infoPtr->uScrollTime;
1685
1686 infoPtr->uScrollTime = min(uScrollTime, 100);
1687
1688 return uOldScrollTime;
1689 }
1690
1691
1692 static LRESULT
1693 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1694 {
1695 TRACE("\n");
1696
1697 switch (wParam)
1698 {
1699 case TVSIL_NORMAL:
1700 return (LRESULT)infoPtr->himlNormal;
1701
1702 case TVSIL_STATE:
1703 return (LRESULT)infoPtr->himlState;
1704
1705 default:
1706 return 0;
1707 }
1708 }
1709
1710 #define TVHEIGHT_MIN 16
1711 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1712
1713 /* Compute the natural height for items. */
1714 static UINT
1715 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1716 {
1717 TEXTMETRICW tm;
1718 HDC hdc = GetDC(0);
1719 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1720 UINT height;
1721
1722 /* Height is the maximum of:
1723 * 16 (a hack because our fonts are tiny), and
1724 * The text height + border & margin, and
1725 * The size of the normal image list
1726 */
1727 GetTextMetricsW(hdc, &tm);
1728 SelectObject(hdc, hOldFont);
1729 ReleaseDC(0, hdc);
1730
1731 height = TVHEIGHT_MIN;
1732 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1733 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1734 if (height < infoPtr->normalImageHeight)
1735 height = infoPtr->normalImageHeight;
1736
1737 /* Round down, unless we support odd ("non even") heights. */
1738 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1739 height &= ~1;
1740
1741 return height;
1742 }
1743
1744 static LRESULT
1745 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1746 {
1747 HIMAGELIST himlOld = 0;
1748 int oldWidth = infoPtr->normalImageWidth;
1749 int oldHeight = infoPtr->normalImageHeight;
1750
1751 TRACE("%u,%p\n", type, himlNew);
1752
1753 switch (type)
1754 {
1755 case TVSIL_NORMAL:
1756 himlOld = infoPtr->himlNormal;
1757 infoPtr->himlNormal = himlNew;
1758
1759 if (himlNew)
1760 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1761 &infoPtr->normalImageHeight);
1762 else
1763 {
1764 infoPtr->normalImageWidth = 0;
1765 infoPtr->normalImageHeight = 0;
1766 }
1767
1768 break;
1769
1770 case TVSIL_STATE:
1771 himlOld = infoPtr->himlState;
1772 infoPtr->himlState = himlNew;
1773
1774 if (himlNew)
1775 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1776 &infoPtr->stateImageHeight);
1777 else
1778 {
1779 infoPtr->stateImageWidth = 0;
1780 infoPtr->stateImageHeight = 0;
1781 }
1782
1783 break;
1784
1785 default:
1786 ERR("unknown imagelist type %u\n", type);
1787 }
1788
1789 if (oldWidth != infoPtr->normalImageWidth ||
1790 oldHeight != infoPtr->normalImageHeight)
1791 {
1792 BOOL bRecalcVisible = FALSE;
1793
1794 if (oldHeight != infoPtr->normalImageHeight &&
1795 !infoPtr->bHeightSet)
1796 {
1797 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1798 bRecalcVisible = TRUE;
1799 }
1800
1801 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1802 infoPtr->normalImageWidth != infoPtr->uIndent)
1803 {
1804 infoPtr->uIndent = infoPtr->normalImageWidth;
1805 bRecalcVisible = TRUE;
1806 }
1807
1808 if (bRecalcVisible)
1809 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1810
1811 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1812 TREEVIEW_UpdateScrollBars(infoPtr);
1813 }
1814
1815 TREEVIEW_Invalidate(infoPtr, NULL);
1816
1817 return (LRESULT)himlOld;
1818 }
1819
1820 static LRESULT
1821 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1822 {
1823 INT prevHeight = infoPtr->uItemHeight;
1824
1825 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1826 if (newHeight == -1)
1827 {
1828 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1829 infoPtr->bHeightSet = FALSE;
1830 }
1831 else
1832 {
1833 if (newHeight == 0) newHeight = 1;
1834 infoPtr->uItemHeight = newHeight;
1835 infoPtr->bHeightSet = TRUE;
1836 }
1837
1838 /* Round down, unless we support odd ("non even") heights. */
1839 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1840 {
1841 infoPtr->uItemHeight &= ~1;
1842 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1843 }
1844
1845 if (infoPtr->uItemHeight != prevHeight)
1846 {
1847 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1848 TREEVIEW_UpdateScrollBars(infoPtr);
1849 TREEVIEW_Invalidate(infoPtr, NULL);
1850 }
1851
1852 return prevHeight;
1853 }
1854
1855 static LRESULT
1856 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1857 {
1858 TRACE("\n");
1859 return infoPtr->uItemHeight;
1860 }
1861
1862
1863 static LRESULT
1864 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1865 {
1866 TRACE("%p\n", infoPtr->hFont);
1867 return (LRESULT)infoPtr->hFont;
1868 }
1869
1870
1871 static INT CALLBACK
1872 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1873 {
1874 (void)unused;
1875
1876 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1877
1878 return 1;
1879 }
1880
1881 static LRESULT
1882 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1883 {
1884 UINT uHeight = infoPtr->uItemHeight;
1885
1886 TRACE("%p %i\n", hFont, bRedraw);
1887
1888 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1889
1890 DeleteObject(infoPtr->hBoldFont);
1891 DeleteObject(infoPtr->hUnderlineFont);
1892 DeleteObject(infoPtr->hBoldUnderlineFont);
1893 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1894 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1895 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
1896
1897 if (!infoPtr->bHeightSet)
1898 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1899
1900 if (uHeight != infoPtr->uItemHeight)
1901 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1902
1903 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1904
1905 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1906 TREEVIEW_UpdateScrollBars(infoPtr);
1907
1908 if (bRedraw)
1909 TREEVIEW_Invalidate(infoPtr, NULL);
1910
1911 return 0;
1912 }
1913
1914
1915 static LRESULT
1916 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1917 {
1918 TRACE("\n");
1919 return (LRESULT)infoPtr->clrLine;
1920 }
1921
1922 static LRESULT
1923 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1924 {
1925 COLORREF prevColor = infoPtr->clrLine;
1926
1927 TRACE("\n");
1928 infoPtr->clrLine = color;
1929 return (LRESULT)prevColor;
1930 }
1931
1932
1933 static LRESULT
1934 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1935 {
1936 TRACE("\n");
1937 return (LRESULT)infoPtr->clrText;
1938 }
1939
1940 static LRESULT
1941 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1942 {
1943 COLORREF prevColor = infoPtr->clrText;
1944
1945 TRACE("\n");
1946 infoPtr->clrText = color;
1947
1948 if (infoPtr->clrText != prevColor)
1949 TREEVIEW_Invalidate(infoPtr, NULL);
1950
1951 return (LRESULT)prevColor;
1952 }
1953
1954
1955 static LRESULT
1956 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1957 {
1958 TRACE("\n");
1959 return (LRESULT)infoPtr->clrBk;
1960 }
1961
1962 static LRESULT
1963 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1964 {
1965 COLORREF prevColor = infoPtr->clrBk;
1966
1967 TRACE("\n");
1968 infoPtr->clrBk = newColor;
1969
1970 if (newColor != prevColor)
1971 TREEVIEW_Invalidate(infoPtr, NULL);
1972
1973 return (LRESULT)prevColor;
1974 }
1975
1976
1977 static LRESULT
1978 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1979 {
1980 TRACE("\n");
1981 return (LRESULT)infoPtr->clrInsertMark;
1982 }
1983
1984 static LRESULT
1985 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1986 {
1987 COLORREF prevColor = infoPtr->clrInsertMark;
1988
1989 TRACE("0x%08x\n", color);
1990 infoPtr->clrInsertMark = color;
1991
1992 return (LRESULT)prevColor;
1993 }
1994
1995
1996 static LRESULT
1997 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1998 {
1999 TRACE("%d %p\n", wParam, item);
2000
2001 if (!TREEVIEW_ValidItem(infoPtr, item))
2002 return 0;
2003
2004 infoPtr->insertBeforeorAfter = wParam;
2005 infoPtr->insertMarkItem = item;
2006
2007 TREEVIEW_Invalidate(infoPtr, NULL);
2008
2009 return 1;
2010 }
2011
2012
2013 /************************************************************************
2014 * Some serious braindamage here. lParam is a pointer to both the
2015 * input HTREEITEM and the output RECT.
2016 */
2017 static LRESULT
2018 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2019 {
2020 TREEVIEW_ITEM *item;
2021 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2022
2023 TRACE("\n");
2024
2025 if (pItem == NULL)
2026 return FALSE;
2027
2028 item = *pItem;
2029 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2030 return FALSE;
2031
2032 /*
2033 * If wParam is TRUE return the text size otherwise return
2034 * the whole item size
2035 */
2036 if (fTextRect)
2037 {
2038 /* Windows does not send TVN_GETDISPINFO here. */
2039
2040 lpRect->top = item->rect.top;
2041 lpRect->bottom = item->rect.bottom;
2042
2043 lpRect->left = item->textOffset;
2044 if (!item->textWidth)
2045 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2046
2047 lpRect->right = item->textOffset + item->textWidth + 4;
2048 }
2049 else
2050 {
2051 *lpRect = item->rect;
2052 }
2053
2054 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2055
2056 return TRUE;
2057 }
2058
2059 static inline LRESULT
2060 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2061 {
2062 /* Surprise! This does not take integral height into account. */
2063 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2064 return infoPtr->clientHeight / infoPtr->uItemHeight;
2065 }
2066
2067
2068 static LRESULT
2069 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2070 {
2071 TREEVIEW_ITEM *item = tvItem->hItem;
2072
2073 if (!TREEVIEW_ValidItem(infoPtr, item))
2074 {
2075 BOOL valid_item = FALSE;
2076 if (!item) return FALSE;
2077
2078 __TRY
2079 {
2080 infoPtr = item->infoPtr;
2081 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2082 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2083 }
2084 __EXCEPT_PAGE_FAULT
2085 {
2086 }
2087 __ENDTRY
2088 if (!valid_item) return FALSE;
2089 }
2090
2091 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2092
2093 if (tvItem->mask & TVIF_CHILDREN)
2094 {
2095 if (item->cChildren==I_CHILDRENCALLBACK)
2096 FIXME("I_CHILDRENCALLBACK not supported\n");
2097 tvItem->cChildren = item->cChildren;
2098 }
2099
2100 if (tvItem->mask & TVIF_HANDLE)
2101 tvItem->hItem = item;
2102
2103 if (tvItem->mask & TVIF_IMAGE)
2104 tvItem->iImage = item->iImage;
2105
2106 if (tvItem->mask & TVIF_INTEGRAL)
2107 tvItem->iIntegral = item->iIntegral;
2108
2109 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2110 tvItem->lParam = item->lParam;
2111
2112 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2113 tvItem->iSelectedImage = item->iSelectedImage;
2114
2115 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2116 tvItem->iExpandedImage = item->iExpandedImage;
2117
2118 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2119 tvItem->state = item->state;
2120
2121 if (tvItem->mask & TVIF_TEXT)
2122 {
2123 if (item->pszText == NULL)
2124 {
2125 if (tvItem->cchTextMax > 0)
2126 tvItem->pszText[0] = '\0';
2127 }
2128 else if (isW)
2129 {
2130 if (item->pszText == LPSTR_TEXTCALLBACKW)
2131 {
2132 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2133 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2134 }
2135 else
2136 {
2137 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2138 }
2139 }
2140 else
2141 {
2142 if (item->pszText == LPSTR_TEXTCALLBACKW)
2143 {
2144 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2145 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2146 }
2147 else
2148 {
2149 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2150 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2151 }
2152 }
2153 }
2154
2155 if (tvItem->mask & TVIF_STATEEX)
2156 {
2157 FIXME("Extended item state not supported, returning 0.\n");
2158 tvItem->uStateEx = 0;
2159 }
2160
2161 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2162 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2163
2164 return TRUE;
2165 }
2166
2167 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2168 * which is wrong. */
2169 static LRESULT
2170 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2171 {
2172 TREEVIEW_ITEM *item;
2173 TREEVIEW_ITEM originalItem;
2174
2175 item = tvItem->hItem;
2176
2177 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2178 tvItem->mask);
2179
2180 if (!TREEVIEW_ValidItem(infoPtr, item))
2181 return FALSE;
2182
2183 /* store the original item values */
2184 originalItem = *item;
2185
2186 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2187 return FALSE;
2188
2189 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2190 if ((tvItem->mask & TVIF_TEXT
2191 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2192 && ISVISIBLE(item))
2193 {
2194 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2195 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2196 }
2197
2198 if (tvItem->mask != 0 && ISVISIBLE(item))
2199 {
2200 /* The refresh updates everything, but we can't wait until then. */
2201 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2202
2203 /* if any of the item's values changed and it's not a callback, redraw the item */
2204 if (item_changed(&originalItem, item, tvItem))
2205 {
2206 if (tvItem->mask & TVIF_INTEGRAL)
2207 {
2208 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2209 TREEVIEW_UpdateScrollBars(infoPtr);
2210
2211 TREEVIEW_Invalidate(infoPtr, NULL);
2212 }
2213 else
2214 {
2215 TREEVIEW_UpdateScrollBars(infoPtr);
2216 TREEVIEW_Invalidate(infoPtr, item);
2217 }
2218 }
2219 }
2220
2221 return TRUE;
2222 }
2223
2224 static LRESULT
2225 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2226 {
2227 TRACE("\n");
2228
2229 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2230 return 0;
2231
2232 return (item->state & mask);
2233 }
2234
2235 static LRESULT
2236 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2237 {
2238 TREEVIEW_ITEM *retval;
2239
2240 retval = 0;
2241
2242 /* handle all the global data here */
2243 switch (which)
2244 {
2245 case TVGN_CHILD: /* Special case: child of 0 is root */
2246 if (item)
2247 break;
2248 /* fall through */
2249 case TVGN_ROOT:
2250 retval = infoPtr->root->firstChild;
2251 break;
2252
2253 case TVGN_CARET:
2254 retval = infoPtr->selectedItem;
2255 break;
2256
2257 case TVGN_FIRSTVISIBLE:
2258 retval = infoPtr->firstVisible;
2259 break;
2260
2261 case TVGN_DROPHILITE:
2262 retval = infoPtr->dropItem;
2263 break;
2264
2265 case TVGN_LASTVISIBLE:
2266 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2267 break;
2268 }
2269
2270 if (retval)
2271 {
2272 TRACE("flags:0x%x, returns %p\n", which, retval);
2273 return (LRESULT)retval;
2274 }
2275
2276 if (item == TVI_ROOT) item = infoPtr->root;
2277
2278 if (!TREEVIEW_ValidItem(infoPtr, item))
2279 return FALSE;
2280
2281 switch (which)
2282 {
2283 case TVGN_NEXT:
2284 retval = item->nextSibling;
2285 break;
2286 case TVGN_PREVIOUS:
2287 retval = item->prevSibling;
2288 break;
2289 case TVGN_PARENT:
2290 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2291 break;
2292 case TVGN_CHILD:
2293 retval = item->firstChild;
2294 break;
2295 case TVGN_NEXTVISIBLE:
2296 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2297 break;
2298 case TVGN_PREVIOUSVISIBLE:
2299 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2300 break;
2301 default:
2302 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2303 break;
2304 }
2305
2306 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2307 return (LRESULT)retval;
2308 }
2309
2310
2311 static LRESULT
2312 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2313 {
2314 TRACE(" %d\n", infoPtr->uNumItems);
2315 return (LRESULT)infoPtr->uNumItems;
2316 }
2317
2318 static VOID
2319 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2320 {
2321 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2322 {
2323 static const unsigned int state_table[] = { 0, 2, 1 };
2324
2325 unsigned int state;
2326
2327 state = STATEIMAGEINDEX(item->state);
2328 TRACE("state: 0x%x\n", state);
2329 item->state &= ~TVIS_STATEIMAGEMASK;
2330
2331 if (state < 3)
2332 state = state_table[state];
2333
2334 item->state |= INDEXTOSTATEIMAGEMASK(state);
2335
2336 TRACE("state: 0x%x\n", state);
2337 TREEVIEW_Invalidate(infoPtr, item);
2338 }
2339 }
2340
2341
2342 /* Painting *************************************************************/
2343
2344 /* Draw the lines and expand button for an item. Also draws one section
2345 * of the line from item's parent to item's parent's next sibling. */
2346 static void
2347 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2348 {
2349 LONG centerx, centery;
2350 BOOL lar = ((infoPtr->dwStyle
2351 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2352 > TVS_LINESATROOT);
2353 HBRUSH hbr, hbrOld;
2354 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2355
2356 if (!lar && item->iLevel == 0)
2357 return;
2358
2359 hbr = CreateSolidBrush(clrBk);
2360 hbrOld = SelectObject(hdc, hbr);
2361
2362 centerx = (item->linesOffset + item->stateOffset) / 2;
2363 centery = (item->rect.top + item->rect.bottom) / 2;
2364
2365 if (infoPtr->dwStyle & TVS_HASLINES)
2366 {
2367 HPEN hOldPen, hNewPen;
2368 HTREEITEM parent;
2369 LOGBRUSH lb;
2370
2371 /* Get a dotted grey pen */
2372 lb.lbStyle = BS_SOLID;
2373 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2374 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2375 hOldPen = SelectObject(hdc, hNewPen);
2376
2377 /* Make sure the center is on a dot (using +2 instead
2378 * of +1 gives us pixel-by-pixel compat with native) */
2379 centery = (centery + 2) & ~1;
2380
2381 MoveToEx(hdc, item->stateOffset, centery, NULL);
2382 LineTo(hdc, centerx - 1, centery);
2383
2384 if (item->prevSibling || item->parent != infoPtr->root)
2385 {
2386 MoveToEx(hdc, centerx, item->rect.top, NULL);
2387 LineTo(hdc, centerx, centery);
2388 }
2389
2390 if (item->nextSibling)
2391 {
2392 MoveToEx(hdc, centerx, centery, NULL);
2393 LineTo(hdc, centerx, item->rect.bottom + 1);
2394 }
2395
2396 /* Draw the line from our parent to its next sibling. */
2397 parent = item->parent;
2398 while (parent != infoPtr->root)
2399 {
2400 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2401
2402 if (parent->nextSibling
2403 /* skip top-levels unless TVS_LINESATROOT */
2404 && parent->stateOffset > parent->linesOffset)
2405 {
2406 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2407 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2408 }
2409
2410 parent = parent->parent;
2411 }
2412
2413 SelectObject(hdc, hOldPen);
2414 DeleteObject(hNewPen);
2415 }
2416
2417 /*
2418 * Display the (+/-) signs
2419 */
2420
2421 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2422 {
2423 if (item->cChildren)
2424 {
2425 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2426 if (theme)
2427 {
2428 RECT glyphRect = item->rect;
2429 glyphRect.left = item->linesOffset;
2430 glyphRect.right = item->stateOffset;
2431 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2432 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2433 &glyphRect, NULL);
2434 }
2435 else
2436 {
2437 LONG height = item->rect.bottom - item->rect.top;
2438 LONG width = item->stateOffset - item->linesOffset;
2439 LONG rectsize = min(height, width) / 4;
2440 /* plussize = ceil(rectsize * 3/4) */
2441 LONG plussize = (rectsize + 1) * 3 / 4;
2442
2443 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2444 HPEN old_pen = SelectObject(hdc, new_pen);
2445
2446 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2447 centerx + rectsize + 2, centery + rectsize + 2);
2448
2449 SelectObject(hdc, old_pen);
2450 DeleteObject(new_pen);
2451
2452 /* draw +/- signs with current text color */
2453 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2454 old_pen = SelectObject(hdc, new_pen);
2455
2456 if (height < 18 || width < 18)
2457 {
2458 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2459 LineTo(hdc, centerx + plussize, centery);
2460
2461 if (!(item->state & TVIS_EXPANDED) ||
2462 (item->state & TVIS_EXPANDPARTIAL))
2463 {
2464 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2465 LineTo(hdc, centerx, centery + plussize);
2466 }
2467 }
2468 else
2469 {
2470 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2471 centerx + plussize, centery + 2);
2472
2473 if (!(item->state & TVIS_EXPANDED) ||
2474 (item->state & TVIS_EXPANDPARTIAL))
2475 {
2476 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2477 centerx + 2, centery + plussize);
2478 SetPixel(hdc, centerx - 1, centery, clrBk);
2479 SetPixel(hdc, centerx + 1, centery, clrBk);
2480 }
2481 }
2482
2483 SelectObject(hdc, old_pen);
2484 DeleteObject(new_pen);
2485 }
2486 }
2487 }
2488 SelectObject(hdc, hbrOld);
2489 DeleteObject(hbr);
2490 }
2491
2492 static void
2493 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2494 {
2495 INT cditem;
2496 HFONT hOldFont;
2497 COLORREF oldTextColor, oldTextBkColor;
2498 int centery;
2499 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2500 NMTVCUSTOMDRAW nmcdhdr;
2501
2502 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2503
2504 /* - If item is drop target or it is selected and window is in focus -
2505 * use blue background (COLOR_HIGHLIGHT).
2506 * - If item is selected, window is not in focus, but it has style
2507 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2508 * - Otherwise - use background color
2509 */
2510 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2511 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2512 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2513 {
2514 if ((item->state & TVIS_DROPHILITED) || inFocus)
2515 {
2516 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2517 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2518 }
2519 else
2520 {
2521 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2522 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2523 }
2524 }
2525 else
2526 {
2527 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2528 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2529 nmcdhdr.clrText = comctl32_color.clrHighlight;
2530 else
2531 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2532 }
2533
2534 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2535
2536 /* The custom draw handler can query the text rectangle,
2537 * so get ready. */
2538 /* should already be known, set to 0 when changed */
2539 if (!item->textWidth)
2540 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2541
2542 cditem = 0;
2543
2544 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2545 {
2546 cditem = TREEVIEW_SendCustomDrawItemNotify
2547 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2548 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2549
2550 if (cditem & CDRF_SKIPDEFAULT)
2551 {
2552 SelectObject(hdc, hOldFont);
2553 return;
2554 }
2555 }
2556
2557 if (cditem & CDRF_NEWFONT)
2558 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2559
2560 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2561
2562 /* Set colors. Custom draw handler can change these so we do this after it. */
2563 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2564 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2565
2566 centery = (item->rect.top + item->rect.bottom) / 2;
2567
2568 /*
2569 * Display the images associated with this item
2570 */
2571 {
2572 INT imageIndex;
2573
2574 /* State images are displayed to the left of the Normal image
2575 * image number is in state; zero should be `display no image'.
2576 */
2577 imageIndex = STATEIMAGEINDEX(item->state);
2578
2579 if (infoPtr->himlState && imageIndex)
2580 {
2581 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2582 item->stateOffset,
2583 centery - infoPtr->stateImageHeight / 2,
2584 ILD_NORMAL);
2585 }
2586
2587 /* Now, draw the normal image; can be either selected,
2588 * non-selected or expanded image.
2589 */
2590
2591 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2592 {
2593 /* The item is currently selected */
2594 imageIndex = item->iSelectedImage;
2595 }
2596 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2597 {
2598 /* The item is currently not selected but expanded */
2599 imageIndex = item->iExpandedImage;
2600 }
2601 else
2602 {
2603 /* The item is not selected and not expanded */
2604 imageIndex = item->iImage;
2605 }
2606
2607 if (infoPtr->himlNormal)
2608 {
2609 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2610
2611 style |= item->state & TVIS_OVERLAYMASK;
2612
2613 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2614 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2615 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2616 style);
2617 }
2618 }
2619
2620
2621 /*
2622 * Display the text associated with this item
2623 */
2624
2625 /* Don't paint item's text if it's being edited */
2626 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2627 {
2628 if (item->pszText)
2629 {
2630 RECT rcText;
2631 UINT align;
2632 SIZE sz;
2633
2634 rcText.top = item->rect.top;
2635 rcText.bottom = item->rect.bottom;
2636 rcText.left = item->textOffset;
2637 rcText.right = rcText.left + item->textWidth + 4;
2638
2639 TRACE("drawing text %s at (%s)\n",
2640 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2641
2642 /* Draw it */
2643 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2644
2645 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2646 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2647 ETO_CLIPPED | ETO_OPAQUE,
2648 &rcText,
2649 item->pszText,
2650 lstrlenW(item->pszText),
2651 NULL);
2652 SetTextAlign(hdc, align);
2653
2654 /* Draw focus box around the selected item */
2655 if ((item == infoPtr->selectedItem) && inFocus)
2656 {
2657 DrawFocusRect(hdc,&rcText);
2658 }
2659 }
2660 }
2661
2662 /* Draw insertion mark if necessary */
2663
2664 if (infoPtr->insertMarkItem)
2665 TRACE("item:%d,mark:%p\n",
2666 TREEVIEW_GetItemIndex(infoPtr, item),
2667 infoPtr->insertMarkItem);
2668
2669 if (item == infoPtr->insertMarkItem)
2670 {
2671 HPEN hNewPen, hOldPen;
2672 int offset;
2673 int left, right;
2674
2675 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2676 hOldPen = SelectObject(hdc, hNewPen);
2677
2678 if (infoPtr->insertBeforeorAfter)
2679 offset = item->rect.bottom - 1;
2680 else
2681 offset = item->rect.top + 1;
2682
2683 left = item->textOffset - 2;
2684 right = item->textOffset + item->textWidth + 2;
2685
2686 MoveToEx(hdc, left, offset - 3, NULL);
2687 LineTo(hdc, left, offset + 4);
2688
2689 MoveToEx(hdc, left, offset, NULL);
2690 LineTo(hdc, right + 1, offset);
2691
2692 MoveToEx(hdc, right, offset + 3, NULL);
2693 LineTo(hdc, right, offset - 4);
2694
2695 SelectObject(hdc, hOldPen);
2696 DeleteObject(hNewPen);
2697 }
2698
2699 /* Restore the hdc state */
2700 SetTextColor(hdc, oldTextColor);
2701 SetBkColor(hdc, oldTextBkColor);
2702 SelectObject(hdc, hOldFont);
2703
2704 if (cditem & CDRF_NOTIFYPOSTPAINT)
2705 {
2706 cditem = TREEVIEW_SendCustomDrawItemNotify
2707 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2708 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2709 }
2710 }
2711
2712 /* Computes treeHeight and treeWidth and updates the scroll bars.
2713 */
2714 static void
2715 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2716 {
2717 TREEVIEW_ITEM *item;
2718 HWND hwnd = infoPtr->hwnd;
2719 BOOL vert = FALSE;
2720 BOOL horz = FALSE;
2721 SCROLLINFO si;
2722 LONG scrollX = infoPtr->scrollX;
2723
2724 infoPtr->treeWidth = 0;
2725 infoPtr->treeHeight = 0;
2726
2727 /* We iterate through all visible items in order to get the tree height
2728 * and width */
2729 item = infoPtr->root->firstChild;
2730
2731 while (item != NULL)
2732 {
2733 if (ISVISIBLE(item))
2734 {
2735 /* actually we draw text at textOffset + 2 */
2736 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2737 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2738
2739 /* This is scroll-adjusted, but we fix this below. */
2740 infoPtr->treeHeight = item->rect.bottom;
2741 }
2742
2743 item = TREEVIEW_GetNextListItem(infoPtr, item);
2744 }
2745
2746 /* Fix the scroll adjusted treeHeight and treeWidth. */
2747 if (infoPtr->root->firstChild)
2748 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2749
2750 infoPtr->treeWidth += infoPtr->scrollX;
2751
2752 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2753
2754 /* Adding one scroll bar may take up enough space that it forces us
2755 * to add the other as well. */
2756 if (infoPtr->treeHeight > infoPtr->clientHeight)
2757 {
2758 vert = TRUE;
2759
2760 if (infoPtr->treeWidth
2761 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2762 horz = TRUE;
2763 }
2764 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2765 horz = TRUE;
2766
2767 if (!vert && horz && infoPtr->treeHeight
2768 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2769 vert = TRUE;
2770
2771 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2772
2773 si.cbSize = sizeof(SCROLLINFO);
2774 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2775 si.nMin = 0;
2776
2777 if (vert)
2778 {
2779 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2780 if ( si.nPage && NULL != infoPtr->firstVisible)
2781 {
2782 si.nPos = infoPtr->firstVisible->visibleOrder;
2783 si.nMax = infoPtr->maxVisibleOrder - 1;
2784
2785 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2786
2787 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2788 ShowScrollBar(hwnd, SB_VERT, TRUE);
2789 infoPtr->uInternalStatus |= TV_VSCROLL;
2790 }
2791 else
2792 {
2793 if (infoPtr->uInternalStatus & TV_VSCROLL)
2794 ShowScrollBar(hwnd, SB_VERT, FALSE);
2795 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2796 }
2797 }
2798 else
2799 {
2800 if (infoPtr->uInternalStatus & TV_VSCROLL)
2801 ShowScrollBar(hwnd, SB_VERT, FALSE);
2802 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2803 }
2804
2805 if (horz)
2806 {
2807 si.nPage = infoPtr->clientWidth;
2808 si.nPos = infoPtr->scrollX;
2809 si.nMax = infoPtr->treeWidth - 1;
2810
2811 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2812 {
2813 si.nPos = si.nMax - max( si.nPage-1, 0 );
2814 scrollX = si.nPos;
2815 }
2816
2817 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2818 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2819 infoPtr->uInternalStatus |= TV_HSCROLL;
2820
2821 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2822 TREEVIEW_HScroll(infoPtr,
2823 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2824 }
2825 else
2826 {
2827 if (infoPtr->uInternalStatus & TV_HSCROLL)
2828 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2829 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2830
2831 scrollX = 0;
2832 if (infoPtr->scrollX != 0)
2833 {
2834 TREEVIEW_HScroll(infoPtr,
2835 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2836 }
2837 }
2838
2839 if (!horz)
2840 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2841 }
2842
2843 static void
2844 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2845 {
2846 HBRUSH hBrush;
2847 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2848
2849 hBrush = CreateSolidBrush(clrBk);
2850 FillRect(hdc, rc, hBrush);
2851 DeleteObject(hBrush);
2852 }
2853
2854 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2855 static LRESULT
2856 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2857 {
2858 RECT rect;
2859
2860 TRACE("%p\n", infoPtr);
2861
2862 GetClientRect(infoPtr->hwnd, &rect);
2863 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2864
2865 return 1;
2866 }
2867
2868 static void
2869 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2870 {
2871 HWND hwnd = infoPtr->hwnd;
2872 RECT rect = *rc;
2873 TREEVIEW_ITEM *item;
2874
2875 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2876 {
2877 TRACE("empty window\n");
2878 return;
2879 }
2880
2881 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2882 hdc, rect);
2883
2884 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2885 {
2886 ReleaseDC(hwnd, hdc);
2887 return;
2888 }
2889
2890 for (item = infoPtr->root->firstChild;
2891 item != NULL;
2892 item = TREEVIEW_GetNextListItem(infoPtr, item))
2893 {
2894 if (ISVISIBLE(item))
2895 {
2896 /* Avoid unneeded calculations */
2897 if (item->rect.top > rect.bottom)
2898 break;
2899 if (item->rect.bottom < rect.top)
2900 continue;
2901
2902 TREEVIEW_DrawItem(infoPtr, hdc, item);
2903 }
2904 }
2905
2906 TREEVIEW_UpdateScrollBars(infoPtr);
2907
2908 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2909 infoPtr->cdmode =
2910 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2911 }
2912
2913 static inline void
2914 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2915 {
2916 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2917 }
2918
2919 static void
2920 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2921 {
2922 if (item)
2923 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2924 else
2925 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2926 }
2927
2928 static void
2929 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
2930 {
2931 RECT rc;
2932 HBITMAP hbm, hbmOld;
2933 HDC hdc, hdcScreen;
2934 int nIndex;
2935
2936 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2937
2938 hdcScreen = GetDC(0);
2939
2940 hdc = CreateCompatibleDC(hdcScreen);
2941 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2942 hbmOld = SelectObject(hdc, hbm);
2943
2944 SetRect(&rc, 0, 0, 48, 16);
2945 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2946
2947 SetRect(&rc, 18, 2, 30, 14);
2948 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2949 DFCS_BUTTONCHECK|DFCS_FLAT);
2950
2951 SetRect(&rc, 34, 2, 46, 14);
2952 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2953 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
2954
2955 SelectObject(hdc, hbmOld);
2956 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
2957 comctl32_color.clrWindow);
2958 TRACE("checkbox index %d\n", nIndex);
2959
2960 DeleteObject(hbm);
2961 DeleteDC(hdc);
2962 ReleaseDC(0, hdcScreen);
2963
2964 infoPtr->stateImageWidth = 16;
2965 infoPtr->stateImageHeight = 16;
2966 }
2967
2968 static void
2969 TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2970 {
2971 TREEVIEW_ITEM *child = item->firstChild;
2972
2973 item->state &= ~TVIS_STATEIMAGEMASK;
2974 item->state |= INDEXTOSTATEIMAGEMASK(1);
2975
2976 while (child)
2977 {
2978 TREEVIEW_ITEM *next = child->nextSibling;
2979 TREEVIEW_ResetImageStateIndex(infoPtr, child);
2980 child = next;
2981 }
2982 }
2983
2984 static LRESULT
2985 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2986 {
2987 HDC hdc;
2988 PAINTSTRUCT ps;
2989 RECT rc;
2990
2991 TRACE("(%p %p)\n", infoPtr, hdc_ref);
2992
2993 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
2994 {
2995 TREEVIEW_InitCheckboxes(infoPtr);
2996 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
2997
2998 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
2999 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
3000 TREEVIEW_UpdateScrollBars(infoPtr);
3001 TREEVIEW_Invalidate(infoPtr, NULL);
3002 }
3003
3004 if (hdc_ref)
3005 {
3006 hdc = hdc_ref;
3007 GetClientRect(infoPtr->hwnd, &rc);
3008 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3009 }
3010 else
3011 {
3012 hdc = BeginPaint(infoPtr->hwnd, &ps);
3013 rc = ps.rcPaint;
3014 if(ps.fErase)
3015 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3016 }
3017
3018 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3019 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3020
3021 if (!hdc_ref)
3022 EndPaint(infoPtr->hwnd, &ps);
3023
3024 return 0;
3025 }
3026
3027 static LRESULT
3028 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
3029 {
3030 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3031
3032 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3033 return 0;
3034
3035 if (options & PRF_ERASEBKGND)
3036 TREEVIEW_EraseBackground(infoPtr, hdc);
3037
3038 if (options & PRF_CLIENT)
3039 {
3040 RECT rc;
3041 GetClientRect(infoPtr->hwnd, &rc);
3042 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3043 }
3044
3045 return 0;
3046 }
3047
3048 /* Sorting **************************************************************/
3049
3050 /***************************************************************************
3051 * Forward the DPA local callback to the treeview owner callback
3052 */
3053 static INT WINAPI
3054 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
3055 const TVSORTCB *pCallBackSort)
3056 {
3057 /* Forward the call to the client-defined callback */
3058 return pCallBackSort->lpfnCompare(first->lParam,
3059 second->lParam,
3060 pCallBackSort->lParam);
3061 }
3062
3063 /***************************************************************************
3064 * Treeview native sort routine: sort on item text.
3065 */
3066 static INT WINAPI
3067 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3068 const TREEVIEW_INFO *infoPtr)
3069 {
3070 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3071 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3072
3073 if(first->pszText && second->pszText)
3074 return lstrcmpiW(first->pszText, second->pszText);
3075 else if(first->pszText)
3076 return -1;
3077 else if(second->pszText)
3078 return 1;
3079 else
3080 return 0;
3081 }
3082
3083 /* Returns the number of physical children belonging to item. */
3084 static INT
3085 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3086 {
3087 INT cChildren = 0;
3088 HTREEITEM hti;
3089
3090 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3091 cChildren++;
3092
3093 return cChildren;
3094 }
3095
3096 /* Returns a DPA containing a pointer to each physical child of item in
3097 * sibling order. If item has no children, an empty DPA is returned. */
3098 static HDPA
3099 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3100 {
3101 HTREEITEM child;
3102
3103 HDPA list = DPA_Create(8);
3104 if (list == 0) return NULL;
3105
3106 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3107 {
3108 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3109 {
3110 DPA_Destroy(list);
3111 return NULL;
3112 }
3113 }
3114
3115 return list;
3116 }
3117
3118 /***************************************************************************
3119 * Setup the treeview structure with regards of the sort method
3120 * and sort the children of the TV item specified in lParam
3121 * fRecurse: currently unused. Should be zero.
3122 * parent: if pSort!=NULL, should equal pSort->hParent.
3123 * otherwise, item which child items are to be sorted.
3124 * pSort: sort method info. if NULL, sort on item text.
3125 * if non-NULL, sort on item's lParam content, and let the
3126 * application decide what that means. See also TVM_SORTCHILDRENCB.
3127 */
3128
3129 static LRESULT
3130 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3131 LPTVSORTCB pSort)
3132 {
3133 INT cChildren;
3134 PFNDPACOMPARE pfnCompare;
3135 LPARAM lpCompare;
3136
3137 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3138 if (parent == TVI_ROOT || parent == NULL)
3139 parent = infoPtr->root;
3140
3141 /* Check for a valid handle to the parent item */
3142 if (!TREEVIEW_ValidItem(infoPtr, parent))
3143 {
3144 ERR("invalid item hParent=%p\n", parent);
3145 return FALSE;
3146 }
3147
3148 if (pSort)
3149 {
3150 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3151 lpCompare = (LPARAM)pSort;
3152 }
3153 else
3154 {
3155 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3156 lpCompare = (LPARAM)infoPtr;
3157 }
3158
3159 cChildren = TREEVIEW_CountChildren(parent);
3160
3161 /* Make sure there is something to sort */
3162 if (cChildren > 1)
3163 {
3164 /* TREEVIEW_ITEM rechaining */
3165 INT count = 0;
3166 HTREEITEM item = 0;
3167 HTREEITEM nextItem = 0;
3168 HTREEITEM prevItem = 0;
3169
3170 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3171
3172 if (sortList == NULL)
3173 return FALSE;
3174
3175 /* let DPA sort the list */
3176 DPA_Sort(sortList, pfnCompare, lpCompare);
3177
3178 /* The order of DPA entries has been changed, so fixup the
3179 * nextSibling and prevSibling pointers. */
3180
3181 item = DPA_GetPtr(sortList, count++);
3182 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3183 {
3184 /* link the two current item together */
3185 item->nextSibling = nextItem;
3186 nextItem->prevSibling = item;
3187
3188 if (prevItem == NULL)
3189 {
3190 /* this is the first item, update the parent */
3191 parent->firstChild = item;
3192 item->prevSibling = NULL;
3193 }
3194 else
3195 {
3196 /* fix the back chaining */
3197 item->prevSibling = prevItem;
3198 }
3199
3200 /* get ready for the next one */
3201 prevItem = item;
3202 item = nextItem;
3203 }
3204
3205 /* the last item is pointed to by item and never has a sibling */
3206 item->nextSibling = NULL;
3207 parent->lastChild = item;
3208
3209 DPA_Destroy(sortList);
3210
3211 TREEVIEW_VerifyTree(infoPtr);
3212
3213 if (parent->state & TVIS_EXPANDED)
3214 {
3215 int visOrder = infoPtr->firstVisible->visibleOrder;
3216
3217 if (parent == infoPtr->root)
3218 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3219 else
3220 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3221
3222 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3223 {
3224 TREEVIEW_ITEM *item;
3225
3226 for (item = infoPtr->root->firstChild; item != NULL;
3227 item = TREEVIEW_GetNextListItem(infoPtr, item))
3228 {
3229 if (item->visibleOrder == visOrder)
3230 break;
3231 }
3232
3233 if (!item) item = parent->firstChild;
3234 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3235 }
3236
3237 TREEVIEW_Invalidate(infoPtr, NULL);
3238 }
3239
3240 return TRUE;
3241 }
3242 return FALSE;
3243 }
3244
3245
3246 /***************************************************************************
3247 * Setup the treeview structure with regards of the sort method
3248 * and sort the children of the TV item specified in lParam
3249 */
3250 static LRESULT
3251 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3252 {
3253 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3254 }
3255
3256
3257 /***************************************************************************
3258 * Sort the children of the TV item specified in lParam.
3259 */
3260 static LRESULT
3261 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3262 {
3263 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3264 }
3265
3266
3267 /* Expansion/Collapse ***************************************************/
3268
3269 static BOOL
3270 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3271 UINT action)
3272 {
3273 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3274 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3275 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3276 0, item);
3277 }
3278
3279 static VOID
3280 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3281 UINT action)
3282 {
3283 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3284 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3285 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3286 0, item);
3287 }
3288
3289
3290 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3291 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3292 static BOOL
3293 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3294 BOOL bRemoveChildren, BOOL bUser)
3295 {
3296 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3297 BOOL bSetSelection, bSetFirstVisible;
3298 RECT scrollRect;
3299 LONG scrollDist = 0;
3300 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3301 BOOL wasExpanded;
3302
3303 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3304
3305 if (!TREEVIEW_HasChildren(infoPtr, item))
3306 return FALSE;
3307
3308 if (bUser)
3309 TREEVIEW_SendExpanding(infoPtr, item, action);
3310
3311 if (item->firstChild == NULL)
3312 return FALSE;
3313
3314 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3315 item->state &= ~TVIS_EXPANDED;
3316
3317 if (wasExpanded && bUser)
3318 TREEVIEW_SendExpanded(infoPtr, item, action);
3319
3320 bSetSelection = (infoPtr->selectedItem != NULL
3321 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3322
3323 bSetFirstVisible = (infoPtr->firstVisible != NULL
3324 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3325
3326 tmpItem = item;
3327 while (tmpItem)
3328 {
3329 if (tmpItem->nextSibling)
3330 {
3331 nextItem = tmpItem->nextSibling;
3332 break;
3333 }
3334 tmpItem = tmpItem->parent;
3335 }
3336
3337 if (nextItem)
3338 scrollDist = nextItem->rect.top;
3339
3340 if (bRemoveChildren)
3341 {
3342 INT old_cChildren = item->cChildren;
3343 TRACE("TVE_COLLAPSERESET\n");
3344 item->state &= ~TVIS_EXPANDEDONCE;
3345 TREEVIEW_RemoveAllChildren(infoPtr, item);
3346 item->cChildren = old_cChildren;
3347 }
3348 if (!wasExpanded)
3349 return FALSE;
3350
3351 if (item->firstChild)
3352 {
3353 TREEVIEW_ITEM *i, *sibling;
3354
3355 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3356
3357 for (i = item->firstChild; i != sibling;
3358 i = TREEVIEW_GetNextListItem(infoPtr, i))
3359 {
3360 i->visibleOrder = -1;
3361 }
3362 }
3363
3364 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3365
3366 if (nextItem)
3367 scrollDist = -(scrollDist - nextItem->rect.top);
3368
3369 if (bSetSelection)
3370 {
3371 /* Don't call DoSelectItem, it sends notifications. */
3372 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3373 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3374 item->state |= TVIS_SELECTED;
3375 infoPtr->selectedItem = item;
3376 }
3377
3378 TREEVIEW_UpdateScrollBars(infoPtr);
3379
3380 scrollRect.left = 0;
3381 scrollRect.right = infoPtr->clientWidth;
3382 scrollRect.bottom = infoPtr->clientHeight;
3383
3384 if (nextItem)
3385 {
3386 scrollRect.top = nextItem->rect.top;
3387
3388 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3389 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3390 TREEVIEW_Invalidate(infoPtr, item);
3391 } else {
3392 scrollRect.top = item->rect.top;
3393 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3394 }
3395
3396 TREEVIEW_SetFirstVisible(infoPtr,
3397 bSetFirstVisible ? item : infoPtr->firstVisible,
3398 TRUE);
3399
3400 return wasExpanded;
3401 }
3402
3403 static BOOL
3404 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3405 BOOL partial, BOOL user)
3406 {
3407 LONG scrollDist;
3408 LONG orgNextTop = 0;
3409 RECT scrollRect;
3410 TREEVIEW_ITEM *nextItem, *tmpItem;
3411 BOOL sendsNotifications;
3412
3413 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3414
3415 if (!TREEVIEW_HasChildren(infoPtr, item))
3416 return FALSE;
3417
3418 tmpItem = item; nextItem = NULL;
3419 while (tmpItem)
3420 {
3421 if (tmpItem->nextSibling)
3422 {
3423 nextItem = tmpItem->nextSibling;
3424 break;
3425 }
3426 tmpItem = tmpItem->parent;
3427 }
3428
3429 if (nextItem)
3430 orgNextTop = nextItem->rect.top;
3431
3432 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3433
3434 sendsNotifications = user || ((item->cChildren != 0) &&
3435 !(item->state & TVIS_EXPANDEDONCE));
3436 if (sendsNotifications)
3437 {
3438 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3439 {
3440 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3441 return FALSE;
3442 }
3443 }
3444 if (!item->firstChild)
3445 return FALSE;
3446
3447 item->state |= TVIS_EXPANDED;
3448
3449 if (partial)
3450 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3451
3452 if (ISVISIBLE(item))
3453 {
3454 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3455 TREEVIEW_UpdateSubTree(infoPtr, item);
3456 TREEVIEW_UpdateScrollBars(infoPtr);
3457
3458 scrollRect.left = 0;
3459 scrollRect.bottom = infoPtr->treeHeight;
3460 scrollRect.right = infoPtr->clientWidth;
3461 if (nextItem)
3462 {
3463 scrollDist = nextItem->rect.top - orgNextTop;
3464 scrollRect.top = orgNextTop;
3465
3466 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3467 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3468 TREEVIEW_Invalidate (infoPtr, item);
3469 } else {
3470 scrollRect.top = item->rect.top;
3471 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3472 }
3473
3474 /* Scroll up so that as many children as possible are visible.
3475 * This fails when expanding causes an HScroll bar to appear, but we
3476 * don't know that yet, so the last item is obscured. */
3477 if (item->firstChild != NULL)
3478 {
3479 int nChildren = item->lastChild->visibleOrder
3480 - item->firstChild->visibleOrder + 1;
3481
3482 int visible_pos = item->visibleOrder
3483 - infoPtr->firstVisible->visibleOrder;
3484
3485 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3486
3487 if (visible_pos > 0 && nChildren > rows_below)
3488 {
3489 int scroll = nChildren - rows_below;
3490
3491 if (scroll > visible_pos)
3492 scroll = visible_pos;
3493
3494 if (scroll > 0)
3495 {
3496 TREEVIEW_ITEM *newFirstVisible
3497 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3498 scroll);
3499
3500
3501 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3502 }
3503 }
3504 }
3505 }
3506
3507 if (sendsNotifications) {
3508 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3509 item->state |= TVIS_EXPANDEDONCE;
3510 }
3511
3512 return TRUE;
3513 }
3514
3515 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3516 to mouse messages and TVM_SELECTITEM.
3517
3518 selection - previously selected item, used to collapse a part of a tree
3519 item - new selected item
3520 */
3521 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3522 HTREEITEM selection, HTREEITEM item)
3523 {
3524 TREEVIEW_ITEM *prev, *curr;
3525
3526 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3527
3528 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3529
3530 /*
3531 * Close the previous item and its ancestors as long as they are not
3532 * ancestors of the current item
3533 */
3534 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3535 {
3536 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3537 {
3538 if (curr == prev)
3539 goto finish;
3540 }
3541 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3542 }
3543
3544 finish:
3545 /*
3546 * Expand the current item
3547 */
3548 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3549 }
3550
3551 static BOOL
3552 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3553 {
3554 TRACE("item=%p, user=%d\n", item, user);
3555
3556 if (item->state & TVIS_EXPANDED)
3557 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3558 else
3559 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3560 }
3561
3562 static VOID
3563 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3564 {
3565 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3566
3567 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3568 {
3569 if (TREEVIEW_HasChildren(infoPtr, item))
3570 TREEVIEW_ExpandAll(infoPtr, item);
3571 }
3572 }
3573
3574 /* Note:If the specified item is the child of a collapsed parent item,
3575 the parent's list of child items is (recursively) expanded to reveal the
3576 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3577 know if it also applies here.
3578 */
3579
3580 static LRESULT
3581 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3582 {
3583 if (!TREEVIEW_ValidItem(infoPtr, item))
3584 return 0;
3585
3586 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3587 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3588 flag, item->state);
3589
3590 switch (flag & TVE_TOGGLE)
3591 {
3592 case TVE_COLLAPSE:
3593 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3594 FALSE);
3595
3596 case TVE_EXPAND:
3597 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3598 FALSE);
3599
3600 case TVE_TOGGLE:
3601 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3602
3603 default:
3604 return 0;
3605 }
3606 }
3607
3608 /* Hit-Testing **********************************************************/
3609
3610 static TREEVIEW_ITEM *
3611 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3612 {
3613 TREEVIEW_ITEM *item;
3614 LONG row;
3615
3616 if (!infoPtr->firstVisible)
3617 return NULL;
3618
3619 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3620
3621 for (item = infoPtr->firstVisible; item != NULL;
3622 item = TREEVIEW_GetNextListItem(infoPtr, item))
3623 {
3624 if (row >= item->visibleOrder
3625 && row < item->visibleOrder + item->iIntegral)
3626 break;
3627 }
3628
3629 return item;
3630 }
3631
3632 static LRESULT
3633 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3634 {
3635 TREEVIEW_ITEM *item;
3636 RECT rect;
3637 UINT status;
3638 LONG x, y;
3639
3640 lpht->hItem = 0;
3641 GetClientRect(infoPtr->hwnd, &rect);
3642 status = 0;
3643 x = lpht->pt.x;
3644 y = lpht->pt.y;
3645
3646 if (x < rect.left)
3647 {
3648 status |= TVHT_TOLEFT;
3649 }
3650 else if (x > rect.right)
3651 {
3652 status |= TVHT_TORIGHT;
3653 }
3654
3655 if (y < rect.top)
3656 {
3657 status |= TVHT_ABOVE;
3658 }
3659 else if (y > rect.bottom)
3660 {
3661 status |= TVHT_BELOW;
3662 }
3663
3664 if (status)
3665 {
3666 lpht->flags = status;
3667 return 0;
3668 }
3669
3670 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3671 if (!item)
3672 {
3673 lpht->flags = TVHT_NOWHERE;
3674 return 0;
3675 }
3676
3677 if (x >= item->textOffset + item->textWidth)
3678 {
3679 lpht->flags = TVHT_ONITEMRIGHT;
3680 }
3681 else if (x >= item->textOffset)
3682 {
3683 lpht->flags = TVHT_ONITEMLABEL;
3684 }
3685 else if (x >= item->imageOffset)
3686 {
3687 lpht->flags = TVHT_ONITEMICON;
3688 }
3689 else if (x >= item->stateOffset)
3690 {
3691 lpht->flags = TVHT_ONITEMSTATEICON;
3692 }
3693 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3694 {
3695 lpht->flags = TVHT_ONITEMBUTTON;
3696 }
3697 else
3698 {
3699 lpht->flags = TVHT_ONITEMINDENT;
3700 }
3701
3702 lpht->hItem = item;
3703 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3704
3705 return (LRESULT)item;
3706 }
3707
3708 /* Item Label Editing ***************************************************/
3709
3710 static LRESULT
3711 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3712 {
3713 return (LRESULT)infoPtr->hwndEdit;
3714 }
3715
3716 static LRESULT CALLBACK
3717 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3718 {
3719 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3720 BOOL bCancel = FALSE;
3721 LRESULT rc;
3722
3723 switch (uMsg)
3724 {
3725 case WM_PAINT:
3726 TRACE("WM_PAINT start\n");
3727 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3728 lParam);
3729 TRACE("WM_PAINT done\n");
3730 return rc;
3731
3732 case WM_KILLFOCUS:
3733 if (infoPtr->bIgnoreEditKillFocus)
3734 return TRUE;
3735 break;
3736
3737 case WM_DESTROY:
3738 {
3739 WNDPROC editProc = infoPtr->wpEditOrig;
3740 infoPtr->wpEditOrig = 0;
3741 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3742 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3743 }
3744
3745 case WM_GETDLGCODE:
3746 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3747
3748 case WM_KEYDOWN:
3749 if (wParam == VK_ESCAPE)
3750 {
3751 bCancel = TRUE;
3752 break;
3753 }
3754 else if (wParam == VK_RETURN)
3755 {
3756 break;
3757 }
3758
3759 /* fall through */
3760 default:
3761 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3762 }
3763
3764 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3765 /* eg. Using a messagebox */
3766
3767 infoPtr->bIgnoreEditKillFocus = TRUE;
3768 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3769 infoPtr->bIgnoreEditKillFocus = FALSE;
3770
3771 return 0;
3772 }
3773
3774
3775 /* should handle edit control messages here */
3776
3777 static LRESULT
3778 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3779 {
3780 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3781
3782 switch (HIWORD(wParam))
3783 {
3784 case EN_UPDATE:
3785 {
3786 /*
3787 * Adjust the edit window size
3788 */
3789 WCHAR buffer[1024];
3790 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3791 HDC hdc = GetDC(infoPtr->hwndEdit);
3792 SIZE sz;
3793 HFONT hFont, hOldFont = 0;
3794
3795 TRACE("edit=%p\n", infoPtr->hwndEdit);
3796
3797 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3798
3799 infoPtr->bLabelChanged = TRUE;
3800
3801 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3802
3803 /* Select font to get the right dimension of the string */
3804 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3805
3806 if (hFont != 0)
3807 {
3808 hOldFont = SelectObject(hdc, hFont);
3809 }
3810
3811 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3812 {
3813 TEXTMETRICW textMetric;
3814
3815 /* Add Extra spacing for the next character */
3816 GetTextMetricsW(hdc, &textMetric);
3817 sz.cx += (textMetric.tmMaxCharWidth * 2);
3818
3819 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3820 sz.cx = min(sz.cx,
3821 infoPtr->clientWidth - editItem->textOffset + 2);
3822
3823 SetWindowPos(infoPtr->hwndEdit,
3824 HWND_TOP,
3825 0,
3826 0,
3827 sz.cx,
3828 editItem->rect.bottom - editItem->rect.top + 3,
3829 SWP_NOMOVE | SWP_DRAWFRAME);
3830 }
3831
3832 if (hFont != 0)
3833 {
3834 SelectObject(hdc, hOldFont);
3835 }
3836
3837 ReleaseDC(infoPtr->hwnd, hdc);
3838 break;
3839 }
3840 case EN_KILLFOCUS:
3841 /* apparently we should respect passed handle value */
3842 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3843
3844 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3845 break;
3846
3847 default:
3848 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3849 }
3850
3851 return 0;
3852 }
3853
3854 static HWND
3855 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3856 {
3857 HWND hwnd = infoPtr->hwnd;
3858 HWND hwndEdit;
3859 SIZE sz;
3860 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3861 HDC hdc;
3862 HFONT hOldFont=0;
3863 TEXTMETRICW textMetric;
3864
3865 TRACE("%p %p\n", hwnd, hItem);
3866 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3867 return NULL;
3868
3869 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3870 return NULL;
3871
3872 if (infoPtr->hwndEdit)
3873 return infoPtr->hwndEdit;
3874
3875 infoPtr->bLabelChanged = FALSE;
3876
3877 /* make edit item visible */
3878 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3879
3880 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3881
3882 hdc = GetDC(hwnd);
3883 /* Select the font to get appropriate metric dimensions */
3884 if (infoPtr->hFont != 0)
3885 {
3886 hOldFont = SelectObject(hdc, infoPtr->hFont);
3887 }
3888
3889 /* Get string length in pixels */
3890 if (hItem->pszText)
3891 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3892 &sz);
3893 else
3894 GetTextExtentPoint32A(hdc, "", 0, &sz);
3895
3896 /* Add Extra spacing for the next character */
3897 GetTextMetricsW(hdc, &textMetric);
3898 sz.cx += (textMetric.tmMaxCharWidth * 2);
3899
3900 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3901 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3902
3903 if (infoPtr->hFont != 0)
3904 {
3905 SelectObject(hdc, hOldFont);
3906 }
3907
3908 ReleaseDC(hwnd, hdc);
3909
3910 infoPtr->editItem = hItem;
3911
3912 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3913 WC_EDITW,
3914 0,
3915 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3916 WS_CLIPSIBLINGS | ES_WANTRETURN |
3917 ES_LEFT, hItem->textOffset - 2,
3918 hItem->rect.top - 1, sz.cx + 3,
3919 hItem->rect.bottom -
3920 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3921 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3922
3923 infoPtr->hwndEdit = hwndEdit;
3924
3925 /* Get a 2D border. */
3926 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3927 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3928 SetWindowLongW(hwndEdit, GWL_STYLE,
3929 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3930
3931 SendMessageW(hwndEdit, WM_SETFONT,
3932 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3933
3934 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3935 (DWORD_PTR)
3936 TREEVIEW_Edit_SubclassProc);
3937 if (hItem->pszText)
3938 SetWindowTextW(hwndEdit, hItem->pszText);
3939
3940 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3941 {
3942 DestroyWindow(hwndEdit);
3943 infoPtr->hwndEdit = 0;
3944 infoPtr->editItem = NULL;
3945 return NULL;
3946 }
3947
3948 SetFocus(hwndEdit);
3949 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3950 ShowWindow(hwndEdit, SW_SHOW);
3951
3952 return hwndEdit;
3953 }
3954
3955
3956 static LRESULT
3957 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3958 {
3959 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3960 NMTVDISPINFOW tvdi;
3961 BOOL bCommit;
3962 WCHAR tmpText[1024] = { '\0' };
3963 WCHAR *newText = tmpText;
3964 int iLength = 0;
3965
3966 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3967
3968 tvdi.item.mask = 0;
3969 tvdi.item.hItem = editedItem;
3970 tvdi.item.state = editedItem->state;
3971 tvdi.item.lParam = editedItem->lParam;
3972
3973 if (!bCancel)
3974 {
3975 if (!infoPtr->bNtfUnicode)
3976 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3977 else
3978 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3979
3980 if (iLength >= 1023)
3981 {
3982 ERR("Insufficient space to retrieve new item label\n");
3983 }
3984
3985 tvdi.item.mask = TVIF_TEXT;
3986 tvdi.item.pszText = tmpText;
3987 tvdi.item.cchTextMax = iLength + 1;
3988 }
3989 else
3990 {
3991 tvdi.item.pszText = NULL;
3992 tvdi.item.cchTextMax = 0;
3993 }
3994
3995 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
3996
3997 if (!bCancel && bCommit) /* Apply the changes */
3998 {
3999 if (!infoPtr->bNtfUnicode)
4000 {
4001 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
4002 newText = Alloc(len * sizeof(WCHAR));
4003 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
4004 iLength = len - 1;
4005 }
4006
4007 if (strcmpW(newText, editedItem->pszText) != 0)
4008 {
4009 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4010 if (ptr == NULL)
4011 {
4012 ERR("OutOfMemory, cannot allocate space for label\n");
4013 if(newText != tmpText) Free(newText);
4014 DestroyWindow(infoPtr->hwndEdit);
4015 infoPtr->hwndEdit = 0;
4016 infoPtr->editItem = NULL;
4017 return FALSE;
4018 }
4019 else
4020 {
4021 editedItem->pszText = ptr;
4022 editedItem->cchTextMax = iLength + 1;
4023 strcpyW(editedItem->pszText, newText);
4024 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4025 }
4026 }
4027 if(newText != tmpText) Free(newText);
4028 }
4029
4030 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4031 DestroyWindow(infoPtr->hwndEdit);
4032 infoPtr->hwndEdit = 0;
4033 infoPtr->editItem = NULL;
4034 return TRUE;
4035 }
4036
4037 static LRESULT
4038 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4039 {
4040 if (wParam != TV_EDIT_TIMER)
4041 {
4042 ERR("got unknown timer\n");
4043 return 1;
4044 }
4045
4046 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4047 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4048
4049 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4050
4051 return 0;
4052 }
4053
4054
4055 /* Mouse Tracking/Drag **************************************************/
4056
4057 /***************************************************************************
4058 * This is quite unusual piece of code, but that's how it's implemented in
4059 * Windows.
4060 */
4061 static LRESULT
4062 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4063 {
4064 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4065 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4066 RECT r;
4067 MSG msg;
4068
4069 r.top = pt.y - cyDrag;
4070 r.left = pt.x - cxDrag;
4071 r.bottom = pt.y + cyDrag;
4072 r.right = pt.x + cxDrag;
4073
4074 SetCapture(infoPtr->hwnd);
4075
4076 while (1)
4077 {
4078 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4079 {
4080 if (msg.message == WM_MOUSEMOVE)
4081 {
4082 pt.x = (short)LOWORD(msg.lParam);
4083 pt.y = (short)HIWORD(msg.lParam);
4084 if (PtInRect(&r, pt))
4085 continue;
4086 else
4087 {
4088 ReleaseCapture();
4089 return 1;
4090 }
4091 }
4092 else if (msg.message >= WM_LBUTTONDOWN &&
4093 msg.message <= WM_RBUTTONDBLCLK)
4094 {
4095 break;
4096 }
4097
4098 DispatchMessageW(&msg);
4099 }
4100
4101 if (GetCapture() != infoPtr->hwnd)
4102 return 0;
4103 }
4104
4105 ReleaseCapture();
4106 return 0;
4107 }
4108
4109
4110 static LRESULT
4111 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4112 {
4113 TREEVIEW_ITEM *item;
4114 TVHITTESTINFO hit;
4115
4116 TRACE("\n");
4117 SetFocus(infoPtr->hwnd);
4118
4119 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4120 {
4121 /* If there is pending 'edit label' event - kill it now */
4122 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4123 }
4124
4125 hit.pt.x = (short)LOWORD(lParam);
4126 hit.pt.y = (short)HIWORD(lParam);
4127
4128 item = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
4129 if (!item)
4130 return 0;
4131 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4132
4133 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4134 { /* FIXME! */
4135 switch (hit.flags)
4136 {
4137 case TVHT_ONITEMRIGHT:
4138 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4139 break;
4140
4141 case TVHT_ONITEMINDENT:
4142 if (!(infoPtr->dwStyle & TVS_HASLINES))
4143 {
4144 break;
4145 }
4146 else
4147 {
4148 int level = hit.pt.x / infoPtr->uIndent;
4149 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4150
4151 while (item->iLevel > level)
4152 {
4153 item = item->parent;
4154 }
4155
4156 /* fall through */
4157 }
4158
4159 case TVHT_ONITEMLABEL:
4160 case TVHT_ONITEMICON:
4161 case TVHT_ONITEMBUTTON:
4162 TREEVIEW_Toggle(infoPtr, item, TRUE);
4163 break;
4164
4165 case TVHT_ONITEMSTATEICON:
4166 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4167 TREEVIEW_ToggleItemState(infoPtr, item);
4168 else
4169 TREEVIEW_Toggle(infoPtr, item, TRUE);
4170 break;
4171 }
4172 }
4173 return TRUE;
4174 }
4175
4176
4177 static LRESULT
4178 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4179 {
4180 HWND hwnd = infoPtr->hwnd;
4181 TVHITTESTINFO ht;
4182 BOOL bTrack, bDoLabelEdit;
4183
4184 /* If Edit control is active - kill it and return.
4185 * The best way to do it is to set focus to itself.
4186 * Edit control subclassed procedure will automatically call
4187 * EndEditLabelNow.
4188 */
4189 if (infoPtr->hwndEdit)
4190 {
4191 SetFocus(hwnd);
4192 return 0;
4193 }
4194
4195 ht.pt.x = (short)LOWORD(lParam);
4196 ht.pt.y = (short)HIWORD(lParam);
4197
4198 TREEVIEW_HitTest(infoPtr, &ht);
4199 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4200
4201 /* update focusedItem and redraw both items */
4202 if(ht.hItem && (ht.flags & TVHT_ONITEM))
4203 {
4204 infoPtr->focusedItem = ht.hItem;
4205 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4206 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4207 }
4208
4209 bTrack = (ht.flags & TVHT_ONITEM)
4210 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4211
4212 /*
4213 * If the style allows editing and the node is already selected
4214 * and the click occurred on the item label...
4215 */
4216 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4217 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4218
4219 /* Send NM_CLICK right away */
4220 if (!bTrack)
4221 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4222 goto setfocus;
4223
4224 if (ht.flags & TVHT_ONITEMBUTTON)
4225 {
4226 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4227 goto setfocus;
4228 }
4229 else if (bTrack)
4230 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4231 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4232 {
4233 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4234 infoPtr->dropItem = ht.hItem;
4235
4236 /* clean up focusedItem as we dragged and won't select this item */
4237 if(infoPtr->focusedItem)
4238 {
4239 /* refresh the item that was focused */
4240 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4241 infoPtr->focusedItem = NULL;
4242
4243 /* refresh the selected item to return the filled background */
4244 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4245 }
4246
4247 return 0;
4248 }
4249 }
4250
4251 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4252 goto setfocus;
4253
4254 if (bDoLabelEdit)
4255 {
4256 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4257 KillTimer(hwnd, TV_EDIT_TIMER);
4258
4259 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4260 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4261 }
4262 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4263 {
4264 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4265
4266 /* Select the current item */
4267 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4268 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4269 }
4270 else if (ht.flags & TVHT_ONITEMSTATEICON)
4271 {
4272 /* TVS_CHECKBOXES requires us to toggle the current state */
4273 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4274 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4275 }
4276
4277 setfocus:
4278 SetFocus(hwnd);
4279 return 0;
4280 }
4281
4282
4283 static LRESULT
4284 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4285 {
4286 TVHITTESTINFO ht;
4287
4288 if (infoPtr->hwndEdit)
4289 {
4290 SetFocus(infoPtr->hwnd);
4291 return 0;
4292 }
4293
4294 ht.pt.x = (short)LOWORD(lParam);
4295 ht.pt.y = (short)HIWORD(lParam);
4296
4297 TREEVIEW_HitTest(infoPtr, &ht);
4298
4299 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4300 {
4301 if (ht.hItem)
4302 {
4303 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4304 infoPtr->dropItem = ht.hItem;
4305 }
4306 }
4307 else
4308 {
4309 SetFocus(infoPtr->hwnd);
4310 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4311 {
4312 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4313 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4314 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4315 }
4316 }
4317
4318 return 0;
4319 }
4320
4321 static LRESULT
4322 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4323 {
4324 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4325 INT cx, cy;
4326 HDC hdc, htopdc;
4327 HWND hwtop;
4328 HBITMAP hbmp, hOldbmp;
4329 SIZE size;
4330 RECT rc;
4331 HFONT hOldFont;
4332
4333 TRACE("\n");
4334
4335 if (!(infoPtr->himlNormal))
4336 return 0;
4337
4338 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4339 return 0;
4340
4341 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4342
4343 hwtop = GetDesktopWindow();
4344 htopdc = GetDC(hwtop);
4345 hdc = CreateCompatibleDC(htopdc);
4346
4347 hOldFont = SelectObject(hdc, infoPtr->hFont);
4348
4349 if (dragItem->pszText)
4350 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4351 &size);
4352 else
4353 GetTextExtentPoint32A(hdc, "", 0, &size);
4354
4355 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4356 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4357 hOldbmp = SelectObject(hdc, hbmp);
4358
4359 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4360 size.cx += cx;
4361 if (cy > size.cy)
4362 size.cy = cy;
4363
4364 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4365 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4366 ILD_NORMAL);
4367
4368 /*
4369 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4370 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4371 */
4372
4373 /* draw item text */
4374
4375 SetRect(&rc, cx, 0, size.cx, size.cy);
4376
4377 if (dragItem->pszText)
4378 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4379 DT_LEFT);
4380
4381 SelectObject(hdc, hOldFont);
4382 SelectObject(hdc, hOldbmp);
4383
4384 ImageList_Add(infoPtr->dragList, hbmp, 0);
4385
4386 DeleteDC(hdc);
4387 DeleteObject(hbmp);
4388 ReleaseDC(hwtop, htopdc);
4389
4390 return (LRESULT)infoPtr->dragList;
4391 }
4392
4393 /* Selection ************************************************************/
4394
4395 static LRESULT
4396 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4397 INT cause)
4398 {
4399 TREEVIEW_ITEM *prevSelect;
4400
4401 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4402
4403 TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state %d\n",
4404 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4405 newSelect ? newSelect->state : 0);
4406
4407 /* reset and redraw focusedItem if focusedItem was set so we don't */
4408 /* have to worry about the previously focused item when we set a new one */
4409 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4410 infoPtr->focusedItem = NULL;
4411
4412 switch (action)
4413 {
4414 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4415 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4416 /* Fall through */
4417 case TVGN_CARET:
4418 prevSelect = infoPtr->selectedItem;
4419
4420 if (prevSelect == newSelect) {
4421 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4422 break;
4423 }
4424
4425 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4426 TVN_SELCHANGINGW,
4427 cause,
4428 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4429 prevSelect,
4430 newSelect))
4431 return FALSE;
4432
4433 if (prevSelect)
4434 prevSelect->state &= ~TVIS_SELECTED;
4435 if (newSelect)
4436 newSelect->state |= TVIS_SELECTED;
4437
4438 infoPtr->selectedItem = newSelect;
4439
4440 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4441
4442 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4443 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4444
4445 TREEVIEW_SendTreeviewNotify(infoPtr,
4446 TVN_SELCHANGEDW,
4447 cause,
4448 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4449 prevSelect,
4450 newSelect);
4451 break;
4452
4453 case TVGN_DROPHILITE:
4454 prevSelect = infoPtr->dropItem;
4455
4456 if (prevSelect)
4457 prevSelect->state &= ~TVIS_DROPHILITED;
4458
4459 infoPtr->dropItem = newSelect;
4460
4461 if (newSelect)
4462 newSelect->state |= TVIS_DROPHILITED;
4463
4464 TREEVIEW_Invalidate(infoPtr, prevSelect);
4465 TREEVIEW_Invalidate(infoPtr, newSelect);
4466 break;
4467
4468 case TVGN_FIRSTVISIBLE:
4469 if (newSelect != NULL)
4470 {
4471 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4472 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4473 TREEVIEW_Invalidate(infoPtr, NULL);
4474 }
4475 break;
4476 }
4477
4478 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4479 return TRUE;
4480 }
4481
4482 /* FIXME: handle NM_KILLFOCUS etc */
4483 static LRESULT
4484 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4485 {
4486 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4487
4488 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4489 return FALSE;
4490
4491 if (item == infoPtr->selectedItem)
4492 return TRUE;
4493
4494 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4495
4496 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4497 return FALSE;
4498
4499 TREEVIEW_SingleExpand(infoPtr, selection, item);
4500
4501 return TRUE;
4502 }
4503
4504 /*************************************************************************
4505 * TREEVIEW_ProcessLetterKeys
4506 *
4507 * Processes keyboard messages generated by pressing the letter keys
4508 * on the keyboard.
4509 * What this does is perform a case insensitive search from the
4510 * current position with the following quirks:
4511 * - If two chars or more are pressed in quick succession we search
4512 * for the corresponding string (e.g. 'abc').
4513 * - If there is a delay we wipe away the current search string and
4514 * restart with just that char.
4515 * - If the user keeps pressing the same character, whether slowly or
4516 * fast, so that the search string is entirely composed of this
4517 * character ('aaaaa' for instance), then we search for first item
4518 * that starting with that character.
4519 * - If the user types the above character in quick succession, then
4520 * we must also search for the corresponding string ('aaaaa'), and
4521 * go to that string if there is a match.
4522 *
4523 * RETURNS
4524 *
4525 * Zero.
4526 *
4527 * BUGS
4528 *
4529 * - The current implementation has a list of characters it will
4530 * accept and it ignores everything else. In particular it will
4531 * ignore accentuated characters which seems to match what
4532 * Windows does. But I'm not sure it makes sense to follow
4533 * Windows there.
4534 * - We don't sound a beep when the search fails.
4535 * - The search should start from the focused item, not from the selected
4536 * item. One reason for this is to allow for multiple selections in trees.
4537 * But currently infoPtr->focusedItem does not seem very usable.
4538 *
4539 * SEE ALSO
4540 *
4541 * TREEVIEW_ProcessLetterKeys
4542 */
4543 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4544 {
4545 HTREEITEM nItem;
4546 HTREEITEM endidx,idx;
4547 TVITEMEXW item;
4548 WCHAR buffer[MAX_PATH];
4549 DWORD timestamp,elapsed;
4550
4551 /* simple parameter checking */
4552 if (!charCode || !keyData) return 0;
4553
4554 /* only allow the valid WM_CHARs through */
4555 if (!isalnum(charCode) &&
4556 charCode != '.' && charCode != '`' && charCode != '!' &&
4557 charCode != '@' && charCode != '#' && charCode != '$' &&
4558 charCode != '%' && charCode != '^' && charCode != '&' &&
4559 charCode != '*' && charCode != '(' && charCode != ')' &&
4560 charCode != '-' && charCode != '_' && charCode != '+' &&
4561 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4562 charCode != '}' && charCode != '[' && charCode != '{' &&
4563 charCode != '/' && charCode != '?' && charCode != '>' &&
4564 charCode != '<' && charCode != ',' && charCode != '~')
4565 return 0;
4566
4567 /* compute how much time elapsed since last keypress */
4568 timestamp = GetTickCount();
4569 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4570 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4571 } else {
4572 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4573 }
4574
4575 /* update the search parameters */
4576 infoPtr->lastKeyPressTimestamp=timestamp;
4577 if (elapsed < KEY_DELAY) {
4578 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4579 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4580 }
4581 if (infoPtr->charCode != charCode) {
4582 infoPtr->charCode=charCode=0;
4583 }
4584 } else {
4585 infoPtr->charCode=charCode;
4586 infoPtr->szSearchParam[0]=charCode;
4587 infoPtr->nSearchParamLength=1;
4588 /* Redundant with the 1 char string */
4589 charCode=0;
4590 }
4591
4592 /* and search from the current position */
4593 nItem=NULL;
4594 if (infoPtr->selectedItem != NULL) {
4595 endidx=infoPtr->selectedItem;
4596 /* if looking for single character match,
4597 * then we must always move forward
4598 */
4599 if (infoPtr->nSearchParamLength == 1)
4600 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4601 else
4602 idx=endidx;
4603 } else {
4604 endidx=NULL;
4605 idx=infoPtr->root->firstChild;
4606 }
4607 do {
4608 /* At the end point, sort out wrapping */
4609 if (idx == NULL) {
4610
4611 /* If endidx is null, stop at the last item (ie top to bottom) */
4612 if (endidx == NULL)
4613 break;
4614
4615 /* Otherwise, start again at the very beginning */
4616 idx=infoPtr->root->firstChild;
4617
4618 /* But if we are stopping on the first child, end now! */
4619 if (idx == endidx) break;
4620 }
4621
4622 /* get item */
4623 ZeroMemory(&item, sizeof(item));
4624 item.mask = TVIF_TEXT;
4625 item.hItem = idx;
4626 item.pszText = buffer;
4627 item.cchTextMax = sizeof(buffer);
4628 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4629
4630 /* check for a match */
4631 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4632 nItem=idx;
4633 break;
4634 } else if ( (charCode != 0) && (nItem == NULL) &&
4635 (nItem != infoPtr->selectedItem) &&
4636 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4637 /* This would work but we must keep looking for a longer match */
4638 nItem=idx;
4639 }
4640 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4641 } while (idx != endidx);
4642
4643 if (nItem != NULL) {
4644 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4645 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4646 }
4647 }
4648
4649 return 0;
4650 }
4651
4652 /* Scrolling ************************************************************/
4653
4654 static LRESULT
4655 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4656 {
4657 int viscount;
4658 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4659 HTREEITEM newFirstVisible = NULL;
4660 int visible_pos = -1;
4661
4662 if (!TREEVIEW_ValidItem(infoPtr, item))
4663 return FALSE;
4664
4665 if (!ISVISIBLE(item))
4666 {
4667 /* Expand parents as necessary. */
4668 HTREEITEM parent;
4669
4670 /* see if we are trying to ensure that root is visible */
4671 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4672 parent = item->parent;
4673 else
4674 parent = item; /* this item is the topmost item */
4675
4676 while (parent != infoPtr->root)
4677 {
4678 if (!(parent->state & TVIS_EXPANDED))
4679 TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
4680
4681 parent = parent->parent;
4682 }
4683 }
4684
4685 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4686
4687 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4688 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4689
4690 if (hasFirstVisible)
4691 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4692
4693 if (visible_pos < 0)
4694 {
4695 /* item is before the start of the list: put it at the top. */
4696 newFirstVisible = item;
4697 }
4698 else if (visible_pos >= viscount
4699 /* Sometimes, before we are displayed, GVC is 0, causing us to
4700 * spuriously scroll up. */
4701 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4702 {
4703 /* item is past the end of the list. */
4704 int scroll = visible_pos - viscount;
4705
4706 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4707 scroll + 1);
4708 }
4709
4710 if (bHScroll)
4711 {
4712 /* Scroll window so item's text is visible as much as possible */
4713 /* Calculation of amount of extra space is taken from EditLabel code */
4714 INT pos, x;
4715 TEXTMETRICW textMetric;
4716 HDC hdc = GetWindowDC(infoPtr->hwnd);
4717
4718 x = item->textWidth;
4719
4720 GetTextMetricsW(hdc, &textMetric);
4721 ReleaseDC(infoPtr->hwnd, hdc);
4722
4723 x += (textMetric.tmMaxCharWidth * 2);
4724 x = max(x, textMetric.tmMaxCharWidth * 3);
4725
4726 if (item->textOffset < 0)
4727 pos = item->textOffset;
4728 else if (item->textOffset + x > infoPtr->clientWidth)
4729 {
4730 if (x > infoPtr->clientWidth)
4731 pos = item->textOffset;
4732 else
4733 pos = item->textOffset + x - infoPtr->clientWidth;
4734 }
4735 else
4736 pos = 0;
4737
4738 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4739 }
4740
4741 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4742 {
4743 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4744
4745 return TRUE;
4746 }
4747
4748 return FALSE;
4749 }
4750
4751 static VOID
4752 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4753 TREEVIEW_ITEM *newFirstVisible,
4754 BOOL bUpdateScrollPos)
4755 {
4756 int gap_size;
4757
4758 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4759
4760 if (newFirstVisible != NULL)
4761 {
4762 /* Prevent an empty gap from appearing at the bottom... */
4763 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4764 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4765
4766 if (gap_size > 0)
4767 {
4768 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4769 -gap_size);
4770
4771 /* ... unless we just don't have enough items. */
4772 if (newFirstVisible == NULL)
4773 newFirstVisible = infoPtr->root->firstChild;
4774 }
4775 }
4776
4777 if (infoPtr->firstVisible != newFirstVisible)
4778 {
4779 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4780 {
4781 infoPtr->firstVisible = newFirstVisible;
4782 TREEVIEW_Invalidate(infoPtr, NULL);
4783 }
4784 else
4785 {
4786 TREEVIEW_ITEM *item;
4787 int scroll = infoPtr->uItemHeight *
4788 (infoPtr->firstVisible->visibleOrder
4789 - newFirstVisible->visibleOrder);
4790
4791 infoPtr->firstVisible = newFirstVisible;
4792
4793 for (item = infoPtr->root->firstChild; item != NULL;
4794 item = TREEVIEW_GetNextListItem(infoPtr, item))
4795 {
4796 item->rect.top += scroll;
4797 item->rect.bottom += scroll;
4798 }
4799
4800 if (bUpdateScrollPos)
4801 SetScrollPos(infoPtr->hwnd, SB_VERT,
4802 newFirstVisible->visibleOrder, TRUE);
4803
4804 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4805 }
4806 }
4807 }
4808
4809 /************************************************************************
4810 * VScroll is always in units of visible items. i.e. we always have a
4811 * visible item aligned to the top of the control. (Unless we have no
4812 * items at all.)
4813 */
4814 static LRESULT
4815 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4816 {
4817 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4818 TREEVIEW_ITEM *newFirstVisible = NULL;
4819
4820 int nScrollCode = LOWORD(wParam);
4821
4822 TRACE("wp %lx\n", wParam);
4823
4824 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4825 return 0;
4826
4827 if (!oldFirstVisible)
4828 {
4829 assert(infoPtr->root->firstChild == NULL);
4830 return 0;
4831 }
4832
4833 switch (nScrollCode)
4834 {
4835 case SB_TOP:
4836 newFirstVisible = infoPtr->root->firstChild;
4837 break;
4838
4839 case SB_BOTTOM:
4840 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4841 break;
4842
4843 case SB_LINEUP:
4844 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4845 break;
4846
4847 case SB_LINEDOWN:
4848 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4849 break;
4850
4851 case SB_PAGEUP:
4852 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4853 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4854 break;
4855
4856 case SB_PAGEDOWN:
4857 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4858 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4859 break;
4860
4861 case SB_THUMBTRACK:
4862 case SB_THUMBPOSITION:
4863 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4864 infoPtr->root->firstChild,
4865 (LONG)(SHORT)HIWORD(wParam));
4866 break;
4867
4868 case SB_ENDSCROLL:
4869 return 0;
4870 }
4871
4872 if (newFirstVisible != NULL)
4873 {
4874 if (newFirstVisible != oldFirstVisible)
4875 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4876 nScrollCode != SB_THUMBTRACK);
4877 else if (nScrollCode == SB_THUMBPOSITION)
4878 SetScrollPos(infoPtr->hwnd, SB_VERT,
4879 newFirstVisible->visibleOrder, TRUE);
4880 }
4881
4882 return 0;
4883 }
4884
4885 static LRESULT
4886 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4887 {
4888 int maxWidth;
4889 int scrollX = infoPtr->scrollX;
4890 int nScrollCode = LOWORD(wParam);
4891
4892 TRACE("wp %lx\n", wParam);
4893
4894 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4895 return FALSE;
4896
4897 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4898 /* shall never occur */
4899 if (maxWidth <= 0)
4900 {
4901 scrollX = 0;
4902 goto scroll;
4903 }
4904
4905 switch (nScrollCode)
4906 {
4907 case SB_LINELEFT:
4908 scrollX -= infoPtr->uItemHeight;
4909 break;
4910 case SB_LINERIGHT:
4911 scrollX += infoPtr->uItemHeight;
4912 break;
4913 case SB_PAGELEFT:
4914 scrollX -= infoPtr->clientWidth;
4915 break;
4916 case SB_PAGERIGHT:
4917 scrollX += infoPtr->clientWidth;
4918 break;
4919
4920 case SB_THUMBTRACK:
4921 case SB_THUMBPOSITION:
4922 scrollX = (int)(SHORT)HIWORD(wParam);
4923 break;
4924
4925 case SB_ENDSCROLL:
4926 return 0;
4927 }
4928
4929 if (scrollX > maxWidth)
4930 scrollX = maxWidth;
4931 else if (scrollX < 0)
4932 scrollX = 0;
4933
4934 scroll:
4935 if (scrollX != infoPtr->scrollX)
4936 {
4937 TREEVIEW_ITEM *item;
4938 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4939
4940 for (item = infoPtr->root->firstChild; item != NULL;
4941 item = TREEVIEW_GetNextListItem(infoPtr, item))
4942 {
4943 item->linesOffset += scroll_pixels;
4944 item->stateOffset += scroll_pixels;
4945 item->imageOffset += scroll_pixels;
4946 item->textOffset += scroll_pixels;
4947 }
4948
4949 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4950 infoPtr->scrollX = scrollX;
4951 UpdateWindow(infoPtr->hwnd);
4952 }
4953
4954 if (nScrollCode != SB_THUMBTRACK)
4955 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4956
4957 return 0;
4958 }
4959
4960 static LRESULT
4961 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4962 {
4963 short wheelDelta;
4964 UINT pulScrollLines = 3;
4965
4966 if (wParam & (MK_SHIFT | MK_CONTROL))
4967 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
4968
4969 if (infoPtr->firstVisible == NULL)
4970 return TRUE;
4971
4972 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4973
4974 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
4975 /* if scrolling changes direction, ignore left overs */
4976 if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
4977 (wheelDelta > 0 && infoPtr->wheelRemainder > 0))
4978 infoPtr->wheelRemainder += wheelDelta;
4979 else
4980 infoPtr->wheelRemainder = wheelDelta;
4981
4982 if (infoPtr->wheelRemainder && pulScrollLines)
4983 {
4984 int newDy;
4985 int maxDy;
4986 int lineScroll;
4987
4988 lineScroll = pulScrollLines * (float)infoPtr->wheelRemainder / WHEEL_DELTA;
4989 infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / (int)pulScrollLines;
4990
4991 newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
4992 maxDy = infoPtr->maxVisibleOrder;
4993
4994 if (newDy > maxDy)
4995 newDy = maxDy;
4996
4997 if (newDy < 0)
4998 newDy = 0;
4999
5000 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
5001 }
5002 return TRUE;
5003 }
5004
5005 /* Create/Destroy *******************************************************/
5006
5007 static LRESULT
5008 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
5009 {
5010 RECT rcClient;
5011 TREEVIEW_INFO *infoPtr;
5012 LOGFONTW lf;
5013
5014 TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5015
5016 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
5017
5018 if (infoPtr == NULL)
5019 {
5020 ERR("could not allocate info memory!\n");
5021 return 0;
5022 }
5023
5024 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5025
5026 infoPtr->hwnd = hwnd;
5027 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5028 infoPtr->Timer = 0;
5029 infoPtr->uNumItems = 0;
5030 infoPtr->cdmode = 0;
5031 infoPtr->uScrollTime = 300; /* milliseconds */
5032 infoPtr->bRedraw = TRUE;
5033
5034 GetClientRect(hwnd, &rcClient);
5035
5036 /* No scroll bars yet. */
5037 infoPtr->clientWidth = rcClient.right;
5038 infoPtr->clientHeight = rcClient.bottom;
5039 infoPtr->uInternalStatus = 0;
5040
5041 infoPtr->treeWidth = 0;
5042 infoPtr->treeHeight = 0;
5043
5044 infoPtr->uIndent = MINIMUM_INDENT;
5045 infoPtr->selectedItem = NULL;
5046 infoPtr->focusedItem = NULL;
5047 infoPtr->hotItem = NULL;
5048 infoPtr->editItem = NULL;
5049 infoPtr->firstVisible = NULL;
5050 infoPtr->maxVisibleOrder = 0;
5051 infoPtr->dropItem = NULL;
5052 infoPtr->insertMarkItem = NULL;
5053 infoPtr->insertBeforeorAfter = 0;
5054 /* dragList */
5055
5056 infoPtr->scrollX = 0;
5057 infoPtr->wheelRemainder = 0;
5058
5059 infoPtr->clrBk = CLR_NONE; /* use system color */
5060 infoPtr->clrText = CLR_NONE; /* use system color */
5061 infoPtr->clrLine = CLR_DEFAULT;
5062 infoPtr->clrInsertMark = CLR_DEFAULT;
5063
5064 /* hwndToolTip */
5065
5066 infoPtr->hwndEdit = NULL;
5067 infoPtr->wpEditOrig = NULL;
5068 infoPtr->bIgnoreEditKillFocus = FALSE;
5069 infoPtr->bLabelChanged = FALSE;
5070
5071 infoPtr->himlNormal = NULL;
5072 infoPtr->himlState = NULL;
5073 infoPtr->normalImageWidth = 0;
5074 infoPtr->normalImageHeight = 0;
5075 infoPtr->stateImageWidth = 0;
5076 infoPtr->stateImageHeight = 0;
5077
5078 infoPtr->items = DPA_Create(16);
5079
5080 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5081 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5082 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5083 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5084 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
5085 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5086
5087 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5088
5089 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5090 infoPtr->root->state = TVIS_EXPANDED;
5091 infoPtr->root->iLevel = -1;
5092 infoPtr->root->visibleOrder = -1;
5093
5094 infoPtr->hwndNotify = lpcs->hwndParent;
5095 infoPtr->hwndToolTip = 0;
5096
5097 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5098 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5099
5100 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5101 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5102 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5103 hwnd, 0, 0, 0);
5104
5105 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5106 ShowScrollBar(hwnd, SB_VERT, FALSE);
5107 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5108
5109 OpenThemeData (hwnd, themeClass);
5110
5111 return 0;
5112 }
5113
5114
5115 static LRESULT
5116 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5117 {
5118 TRACE("\n");
5119
5120 /* free item data */
5121 TREEVIEW_RemoveTree(infoPtr);
5122 /* root isn't freed with other items */
5123 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5124 DPA_Destroy(infoPtr->items);
5125
5126 /* tool tip is automatically destroyed: we are its owner */
5127
5128 /* Restore original wndproc */
5129 if (infoPtr->hwndEdit)
5130 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5131 (DWORD_PTR)infoPtr->wpEditOrig);
5132
5133 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5134
5135 /* Deassociate treeview from the window before doing anything drastic. */
5136 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5137
5138 DeleteObject(infoPtr->hDefaultFont);
5139 DeleteObject(infoPtr->hBoldFont);
5140 DeleteObject(infoPtr->hUnderlineFont);
5141 DeleteObject(infoPtr->hBoldUnderlineFont);
5142 Free(infoPtr);
5143
5144 return 0;
5145 }
5146
5147 /* Miscellaneous Messages ***********************************************/
5148
5149 static LRESULT
5150 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5151 {
5152 static const struct
5153 {
5154 unsigned char code;
5155 }
5156 scroll[] =
5157 {
5158 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5159 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5160 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5161 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5162 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5163 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5164 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5165 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5166 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5167 #undef SCROLL_ENTRY
5168 };
5169
5170 if (key >= VK_PRIOR && key <= VK_DOWN)
5171 {
5172 unsigned char code = scroll[key - VK_PRIOR].code;
5173
5174 (((code & (1 << 7)) == (SB_HORZ << 7))
5175 ? TREEVIEW_HScroll
5176 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5177 }
5178
5179 return 0;
5180 }
5181
5182 /************************************************************************
5183 * TREEVIEW_KeyDown
5184 *
5185 * VK_UP Move selection to the previous non-hidden item.
5186 * VK_DOWN Move selection to the next non-hidden item.
5187 * VK_HOME Move selection to the first item.
5188 * VK_END Move selection to the last item.
5189 * VK_LEFT If expanded then collapse, otherwise move to parent.
5190 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5191 * VK_ADD Expand.
5192 * VK_SUBTRACT Collapse.
5193 * VK_MULTIPLY Expand all.
5194 * VK_PRIOR Move up GetVisibleCount items.
5195 * VK_NEXT Move down GetVisibleCount items.
5196 * VK_BACK Move to parent.
5197 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5198 */
5199 static LRESULT
5200 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5201 {
5202 /* If it is non-NULL and different, it will be selected and visible. */
5203 TREEVIEW_ITEM *newSelection = NULL;
5204 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5205 NMTVKEYDOWN nmkeydown;
5206
5207 TRACE("%lx\n", wParam);
5208
5209 nmkeydown.wVKey = wParam;
5210 nmkeydown.flags = 0;
5211 TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
5212
5213 if (prevItem == NULL)
5214 return FALSE;
5215
5216 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5217 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5218
5219 switch (wParam)
5220 {
5221 case VK_UP:
5222 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5223 if (!newSelection)
5224 newSelection = infoPtr->root->firstChild;
5225 break;
5226
5227 case VK_DOWN:
5228 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5229 break;
5230
5231 case VK_RETURN:
5232 TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
5233 break;
5234
5235 case VK_HOME:
5236 newSelection = infoPtr->root->firstChild;
5237 break;
5238
5239 case VK_END:
5240 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5241 break;
5242
5243 case VK_LEFT:
5244 if (prevItem->state & TVIS_EXPANDED)
5245 {
5246 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5247 }
5248 else if (prevItem->parent != infoPtr->root)
5249 {
5250 newSelection = prevItem->parent;
5251 }
5252 break;
5253
5254 case VK_RIGHT:
5255 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5256 {
5257 if (!(prevItem->state & TVIS_EXPANDED))
5258 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5259 else
5260 {
5261 newSelection = prevItem->firstChild;
5262 }
5263 }
5264
5265 break;
5266
5267 case VK_MULTIPLY:
5268 TREEVIEW_ExpandAll(infoPtr, prevItem);
5269 break;
5270
5271 case VK_ADD:
5272 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5273 break;
5274
5275 case VK_SUBTRACT:
5276 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5277 break;
5278
5279 case VK_PRIOR:
5280 newSelection
5281 = TREEVIEW_GetListItem(infoPtr, prevItem,
5282 -TREEVIEW_GetVisibleCount(infoPtr));
5283 break;
5284
5285 case VK_NEXT:
5286 newSelection
5287 = TREEVIEW_GetListItem(infoPtr, prevItem,
5288 TREEVIEW_GetVisibleCount(infoPtr));
5289 break;
5290
5291 case VK_BACK:
5292 newSelection = prevItem->parent;
5293 if (newSelection == infoPtr->root)
5294 newSelection = NULL;
5295 break;
5296
5297 case VK_SPACE:
5298 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5299 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5300 break;
5301 }
5302
5303 if (newSelection && newSelection != prevItem)
5304 {
5305 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5306 TVC_BYKEYBOARD))
5307 {
5308 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5309 }
5310 }
5311
5312 return FALSE;
5313 }
5314
5315 static LRESULT
5316 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5317 {
5318 /* remove hot effect from item */
5319 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5320 infoPtr->hotItem = NULL;
5321
5322 return 0;
5323 }
5324
5325 static LRESULT
5326 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5327 {
5328 POINT pt;
5329 TRACKMOUSEEVENT trackinfo;
5330 TREEVIEW_ITEM * item;
5331
5332 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5333
5334 /* fill in the TRACKMOUSEEVENT struct */
5335 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5336 trackinfo.dwFlags = TME_QUERY;
5337 trackinfo.hwndTrack = infoPtr->hwnd;
5338
5339 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5340 _TrackMouseEvent(&trackinfo);
5341
5342 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5343 if(!(trackinfo.dwFlags & TME_LEAVE))
5344 {
5345 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5346 trackinfo.hwndTrack = infoPtr->hwnd;
5347 /* do it as fast as possible, minimal systimer latency will be used */
5348 trackinfo.dwHoverTime = 1;
5349
5350 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5351 /* and can properly deactivate the hot item */
5352 _TrackMouseEvent(&trackinfo);
5353 }
5354
5355 pt.x = (short)LOWORD(lParam);
5356 pt.y = (short)HIWORD(lParam);
5357
5358 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5359
5360 if (item != infoPtr->hotItem)
5361 {
5362 /* redraw old hot item */
5363 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5364 infoPtr->hotItem = item;
5365 /* redraw new hot item */
5366 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5367 }
5368
5369 return 0;
5370 }
5371
5372 /* Draw themed border */
5373 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5374 {
5375 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5376 HDC dc;
5377 RECT r;
5378 HRGN cliprgn;
5379 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5380 cyEdge = GetSystemMetrics (SM_CYEDGE);
5381
5382 if (!theme)
5383 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5384
5385 GetWindowRect(infoPtr->hwnd, &r);
5386
5387 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5388 r.right - cxEdge, r.bottom - cyEdge);
5389 if (region != (HRGN)1)
5390 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5391 OffsetRect(&r, -r.left, -r.top);
5392
5393 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5394 OffsetRect(&r, -r.left, -r.top);
5395
5396 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5397 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5398 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5399 ReleaseDC(infoPtr->hwnd, dc);
5400
5401 /* Call default proc to get the scrollbars etc. painted */
5402 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5403
5404 return TRUE;
5405 }
5406
5407 static LRESULT
5408 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5409 {
5410 LPNMHDR lpnmh = (LPNMHDR)lParam;
5411
5412 if (lpnmh->code == PGN_CALCSIZE) {
5413 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5414
5415 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5416 lppgc->iWidth = infoPtr->treeWidth;
5417 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5418 infoPtr->treeWidth, infoPtr->clientWidth);
5419 }
5420 else {
5421 lppgc->iHeight = infoPtr->treeHeight;
5422 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5423 infoPtr->treeHeight, infoPtr->clientHeight);
5424 }
5425 return 0;
5426 }
5427 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5428 }
5429
5430 static LRESULT
5431 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5432 {
5433 if (wParam == SIZE_RESTORED)
5434 {
5435 infoPtr->clientWidth = (short)LOWORD(lParam);
5436 infoPtr->clientHeight = (short)HIWORD(lParam);
5437
5438 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5439 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5440 TREEVIEW_UpdateScrollBars(infoPtr);
5441 }
5442 else
5443 {
5444 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5445 }
5446
5447 TREEVIEW_Invalidate(infoPtr, NULL);
5448 return 0;
5449 }
5450
5451 static LRESULT
5452 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5453 {
5454 TRACE("(%lx %lx)\n", wParam, lParam);
5455
5456 if (wParam == GWL_STYLE)
5457 {
5458 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5459
5460 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5461 {
5462 if (dwNewStyle & TVS_CHECKBOXES)
5463 {
5464 TREEVIEW_InitCheckboxes(infoPtr);
5465 TRACE("checkboxes enabled\n");
5466
5467 /* set all items to state image index 1 */
5468 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5469 }
5470 else
5471 {
5472 FIXME("tried to disable checkboxes\n");
5473 }
5474 }
5475
5476 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5477 {
5478 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5479 {
5480 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5481 TRACE("tooltips enabled\n");
5482 }
5483 else
5484 {
5485 DestroyWindow(infoPtr->hwndToolTip);
5486 infoPtr->hwndToolTip = 0;
5487 TRACE("tooltips disabled\n");
5488 }
5489 }
5490
5491 infoPtr->dwStyle = dwNewStyle;
5492 }
5493
5494 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
5495 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5496 TREEVIEW_UpdateScrollBars(infoPtr);
5497 TREEVIEW_Invalidate(infoPtr, NULL);
5498
5499 return 0;
5500 }
5501
5502 static LRESULT
5503 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5504 {
5505 POINT pt;
5506 TREEVIEW_ITEM * item;
5507 NMMOUSE nmmouse;
5508
5509 GetCursorPos(&pt);
5510 ScreenToClient(infoPtr->hwnd, &pt);
5511
5512 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5513
5514 memset(&nmmouse, 0, sizeof(nmmouse));
5515 if (item)
5516 {
5517 nmmouse.dwItemSpec = (DWORD_PTR)item;
5518 nmmouse.dwItemData = item->lParam;
5519 }
5520 nmmouse.pt.x = 0;
5521 nmmouse.pt.y = 0;
5522 nmmouse.dwHitInfo = lParam;
5523 if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
5524 return 0;
5525
5526 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5527 {
5528 SetCursor(infoPtr->hcurHand);
5529 return 0;
5530 }
5531 else
5532 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5533 }
5534
5535 static LRESULT
5536 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5537 {
5538 TRACE("\n");
5539
5540 if (!infoPtr->selectedItem)
5541 {
5542 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5543 TVC_UNKNOWN);
5544 }
5545
5546 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5547 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5548 return 0;
5549 }
5550
5551 static LRESULT
5552 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5553 {
5554 TRACE("\n");
5555
5556 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5557 UpdateWindow(infoPtr->hwnd);
5558 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5559 return 0;
5560 }
5561
5562 /* update theme after a WM_THEMECHANGED message */
5563 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5564 {
5565 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5566 CloseThemeData (theme);
5567 OpenThemeData (infoPtr->hwnd, themeClass);
5568 return 0;
5569 }
5570
5571
5572 static LRESULT WINAPI
5573 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5574 {
5575 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5576
5577 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5578
5579 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5580 else
5581 {
5582 if (uMsg == WM_CREATE)
5583 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5584 else
5585 goto def;
5586 }
5587
5588 switch (uMsg)
5589 {
5590 case TVM_CREATEDRAGIMAGE:
5591 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5592
5593 case TVM_DELETEITEM:
5594 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5595
5596 case TVM_EDITLABELA:
5597 case TVM_EDITLABELW:
5598 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5599
5600 case TVM_ENDEDITLABELNOW:
5601 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5602
5603 case TVM_ENSUREVISIBLE:
5604 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5605
5606 case TVM_EXPAND:
5607 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5608
5609 case TVM_GETBKCOLOR:
5610 return TREEVIEW_GetBkColor(infoPtr);
5611
5612 case TVM_GETCOUNT:
5613 return TREEVIEW_GetCount(infoPtr);
5614
5615 case TVM_GETEDITCONTROL:
5616 return TREEVIEW_GetEditControl(infoPtr);
5617
5618 case TVM_GETIMAGELIST:
5619 return TREEVIEW_GetImageList(infoPtr, wParam);
5620
5621 case TVM_GETINDENT:
5622 return TREEVIEW_GetIndent(infoPtr);
5623
5624 case TVM_GETINSERTMARKCOLOR:
5625 return TREEVIEW_GetInsertMarkColor(infoPtr);
5626
5627 case TVM_GETISEARCHSTRINGA:
5628 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5629 return 0;
5630
5631 case TVM_GETISEARCHSTRINGW:
5632 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5633 return 0;
5634
5635 case TVM_GETITEMA:
5636 case TVM_GETITEMW:
5637 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5638 uMsg == TVM_GETITEMW);
5639 case TVM_GETITEMHEIGHT:
5640 return TREEVIEW_GetItemHeight(infoPtr);
5641
5642 case TVM_GETITEMRECT:
5643 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5644
5645 case TVM_GETITEMSTATE:
5646 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5647
5648 case TVM_GETLINECOLOR:
5649 return TREEVIEW_GetLineColor(infoPtr);
5650
5651 case TVM_GETNEXTITEM:
5652 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5653
5654 case TVM_GETSCROLLTIME:
5655 return TREEVIEW_GetScrollTime(infoPtr);
5656
5657 case TVM_GETTEXTCOLOR:
5658 return TREEVIEW_GetTextColor(infoPtr);
5659
5660 case TVM_GETTOOLTIPS:
5661 return TREEVIEW_GetToolTips(infoPtr);
5662
5663 case TVM_GETUNICODEFORMAT:
5664 return TREEVIEW_GetUnicodeFormat(infoPtr);
5665
5666 case TVM_GETVISIBLECOUNT:
5667 return TREEVIEW_GetVisibleCount(infoPtr);
5668
5669 case TVM_HITTEST:
5670 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5671
5672 case TVM_INSERTITEMA:
5673 case TVM_INSERTITEMW:
5674 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5675 uMsg == TVM_INSERTITEMW);
5676 case TVM_SELECTITEM:
5677 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5678
5679 case TVM_SETBKCOLOR:
5680 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5681
5682 case TVM_SETIMAGELIST:
5683 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5684
5685 case TVM_SETINDENT:
5686 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5687
5688 case TVM_SETINSERTMARK:
5689 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5690
5691 case TVM_SETINSERTMARKCOLOR:
5692 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5693
5694 case TVM_SETITEMA:
5695 case TVM_SETITEMW:
5696 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5697 uMsg == TVM_SETITEMW);
5698 case TVM_SETLINECOLOR:
5699 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5700
5701 case TVM_SETITEMHEIGHT:
5702 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5703
5704 case TVM_SETSCROLLTIME:
5705 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5706
5707 case TVM_SETTEXTCOLOR:
5708 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5709
5710 case TVM_SETTOOLTIPS:
5711 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5712
5713 case TVM_SETUNICODEFORMAT:
5714 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5715
5716 case TVM_SORTCHILDREN:
5717 return TREEVIEW_SortChildren(infoPtr, lParam);
5718
5719 case TVM_SORTCHILDRENCB:
5720 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5721
5722 case WM_CHAR:
5723 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5724
5725 case WM_COMMAND:
5726 return TREEVIEW_Command(infoPtr, wParam, lParam);
5727
5728 case WM_DESTROY:
5729 return TREEVIEW_Destroy(infoPtr);
5730
5731 /* WM_ENABLE */
5732
5733 case WM_ERASEBKGND:
5734 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5735
5736 case WM_GETDLGCODE:
5737 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5738
5739 case WM_GETFONT:
5740 return TREEVIEW_GetFont(infoPtr);
5741
5742 case WM_HSCROLL:
5743 return TREEVIEW_HScroll(infoPtr, wParam);
5744
5745 case WM_KEYDOWN:
5746 return TREEVIEW_KeyDown(infoPtr, wParam);
5747
5748 case WM_KILLFOCUS:
5749 return TREEVIEW_KillFocus(infoPtr);
5750
5751 case WM_LBUTTONDBLCLK:
5752 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5753
5754 case WM_LBUTTONDOWN:
5755 return TREEVIEW_LButtonDown(infoPtr, lParam);
5756
5757 /* WM_MBUTTONDOWN */
5758
5759 case WM_MOUSELEAVE:
5760 return TREEVIEW_MouseLeave(infoPtr);
5761
5762 case WM_MOUSEMOVE:
5763 return TREEVIEW_MouseMove(infoPtr, lParam);
5764
5765 case WM_NCLBUTTONDOWN:
5766 if (infoPtr->hwndEdit)
5767 SetFocus(infoPtr->hwnd);
5768 goto def;
5769
5770 case WM_NCPAINT:
5771 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5772
5773 case WM_NOTIFY:
5774 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5775
5776 case WM_NOTIFYFORMAT:
5777 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5778
5779 case WM_PRINTCLIENT:
5780 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5781
5782 case WM_PAINT:
5783 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5784
5785 case WM_RBUTTONDOWN:
5786 return TREEVIEW_RButtonDown(infoPtr, lParam);
5787
5788 case WM_SETCURSOR:
5789 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5790
5791 case WM_SETFOCUS:
5792 return TREEVIEW_SetFocus(infoPtr);
5793
5794 case WM_SETFONT:
5795 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5796
5797 case WM_SETREDRAW:
5798 return TREEVIEW_SetRedraw(infoPtr, wParam);
5799
5800 case WM_SIZE:
5801 return TREEVIEW_Size(infoPtr, wParam, lParam);
5802
5803 case WM_STYLECHANGED:
5804 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5805
5806 case WM_SYSCOLORCHANGE:
5807 COMCTL32_RefreshSysColors();
5808 return 0;
5809
5810 /* WM_SYSKEYDOWN */
5811
5812 case WM_TIMER:
5813 return TREEVIEW_HandleTimer(infoPtr, wParam);
5814
5815 case WM_THEMECHANGED:
5816 return TREEVIEW_ThemeChanged (infoPtr);
5817
5818 case WM_VSCROLL:
5819 return TREEVIEW_VScroll(infoPtr, wParam);
5820
5821 /* WM_WININICHANGE */
5822
5823 case WM_MOUSEWHEEL:
5824 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5825
5826 case WM_DRAWITEM:
5827 TRACE("drawItem\n");
5828 goto def;
5829
5830 default:
5831 /* This mostly catches MFC and Delphi messages. :( */
5832 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5833 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5834 def:
5835 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5836 }
5837 }
5838
5839
5840 /* Class Registration ***************************************************/
5841
5842 VOID
5843 TREEVIEW_Register(void)
5844 {
5845 WNDCLASSW wndClass;
5846
5847 TRACE("\n");
5848
5849 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5850 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5851 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5852 wndClass.cbClsExtra = 0;
5853 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5854
5855 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5856 wndClass.hbrBackground = 0;
5857 wndClass.lpszClassName = WC_TREEVIEWW;
5858
5859 RegisterClassW(&wndClass);
5860 }
5861
5862
5863 VOID
5864 TREEVIEW_Unregister(void)
5865 {
5866 UnregisterClassW(WC_TREEVIEWW, NULL);
5867 }
5868
5869
5870 /* Tree Verification ****************************************************/
5871
5872 static inline void
5873 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5874
5875 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5876 const TREEVIEW_ITEM *item)
5877 {
5878 assert(infoPtr != NULL);
5879 assert(item != NULL);
5880
5881 /* both NULL, or both non-null */
5882 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5883
5884 assert(item->firstChild != item);
5885 assert(item->lastChild != item);
5886
5887 if (item->firstChild)
5888 {
5889 assert(item->firstChild->parent == item);
5890 assert(item->firstChild->prevSibling == NULL);
5891 }
5892
5893 if (item->lastChild)
5894 {
5895 assert(item->lastChild->parent == item);
5896 assert(item->lastChild->nextSibling == NULL);
5897 }
5898
5899 assert(item->nextSibling != item);
5900 if (item->nextSibling)
5901 {
5902 assert(item->nextSibling->parent == item->parent);
5903 assert(item->nextSibling->prevSibling == item);
5904 }
5905
5906 assert(item->prevSibling != item);
5907 if (item->prevSibling)
5908 {
5909 assert(item->prevSibling->parent == item->parent);
5910 assert(item->prevSibling->nextSibling == item);
5911 }
5912 }
5913
5914 static inline void
5915 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5916 {
5917 assert(item != NULL);
5918
5919 assert(item->parent != NULL);
5920 assert(item->parent != item);
5921 assert(item->iLevel == item->parent->iLevel + 1);
5922
5923 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5924
5925 TREEVIEW_VerifyItemCommon(infoPtr, item);
5926
5927 TREEVIEW_VerifyChildren(infoPtr, item);
5928 }
5929
5930 static inline void
5931 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5932 {
5933 const TREEVIEW_ITEM *child;
5934 assert(item != NULL);
5935
5936 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5937 TREEVIEW_VerifyItem(infoPtr, child);
5938 }
5939
5940 static inline void
5941 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5942 {
5943 TREEVIEW_ITEM *root = infoPtr->root;
5944
5945 assert(root != NULL);
5946 assert(root->iLevel == -1);
5947 assert(root->parent == NULL);
5948 assert(root->prevSibling == NULL);
5949
5950 TREEVIEW_VerifyItemCommon(infoPtr, root);
5951
5952 TREEVIEW_VerifyChildren(infoPtr, root);
5953 }
5954
5955 static void
5956 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5957 {
5958 if (!TRACE_ON(treeview)) return;
5959
5960 assert(infoPtr != NULL);
5961 TREEVIEW_VerifyRoot(infoPtr);
5962 }
Maarten's multimedia branch