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Make CryptImport/ExportPublicKeyInfoEx behave the way MSDN describes
[wine/gsoc-2012-control.git] / dlls / comctl32 / treeview.c
blobe6cd167bd2f0c10374911558daf7ff8d07496d27
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: All items always! have valid (allocated) pszText field.
27 * If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
28 * of size TEXT_CALLBACK_SIZE in DoSetItem.
29 * We use callbackMask to keep track of fields to be updated.
30 *
31 * TODO:
32 * missing notifications: NM_SETCURSOR, TVN_GETINFOTIP, TVN_KEYDOWN,
33 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
34 *
35 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
36 *
37 * missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
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 #define NONAMELESSSTRUCT
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 "tmschema.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66
67 /* internal structures */
68
69 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
70 {
71 UINT callbackMask;
72 UINT state;
73 UINT stateMask;
74 LPWSTR pszText;
75 int cchTextMax;
76 int iImage;
77 int iSelectedImage;
78 int cChildren;
79 LPARAM lParam;
80 int iIntegral; /* item height multiplier (1 is normal) */
81 int iLevel; /* indentation level:0=root level */
82 HTREEITEM parent; /* handle to parent or 0 if at root */
83 HTREEITEM firstChild; /* handle to first child or 0 if no child */
84 HTREEITEM lastChild;
85 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
86 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
87 RECT rect;
88 LONG linesOffset;
89 LONG stateOffset;
90 LONG imageOffset;
91 LONG textOffset;
92 LONG textWidth; /* horizontal text extent for pszText */
93 LONG visibleOrder; /* visible ordering, 0 is first visible item */
94 } TREEVIEW_ITEM;
95
96
97 typedef struct tagTREEVIEW_INFO
98 {
99 HWND hwnd;
100 HWND hwndNotify; /* Owner window to send notifications to */
101 DWORD dwStyle;
102 HTREEITEM root;
103 UINT uInternalStatus;
104 INT Timer;
105 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
106 INT cdmode; /* last custom draw setting */
107 UINT uScrollTime; /* max. time for scrolling in milliseconds */
108 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
109
110 UINT uItemHeight; /* item height */
111 BOOL bHeightSet;
112
113 LONG clientWidth; /* width of control window */
114 LONG clientHeight; /* height of control window */
115
116 LONG treeWidth; /* width of visible tree items */
117 LONG treeHeight; /* height of visible tree items */
118
119 UINT uIndent; /* indentation in pixels */
120 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
121 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
122 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
123
124 HTREEITEM firstVisible; /* handle to first visible item */
125 LONG maxVisibleOrder;
126 HTREEITEM dropItem; /* handle to item selected by drag cursor */
127 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
128 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
129 HIMAGELIST dragList; /* Bitmap of dragged item */
130 LONG scrollX;
131 COLORREF clrBk;
132 COLORREF clrText;
133 COLORREF clrLine;
134 COLORREF clrInsertMark;
135 HFONT hFont;
136 HFONT hDefaultFont;
137 HFONT hBoldFont;
138 HFONT hUnderlineFont;
139 HCURSOR hcurHand;
140 HWND hwndToolTip;
141
142 HWND hwndEdit;
143 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
144 BOOL bIgnoreEditKillFocus;
145 BOOL bLabelChanged;
146
147 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
148 HIMAGELIST himlNormal;
149 int normalImageHeight;
150 int normalImageWidth;
151 HIMAGELIST himlState;
152 int stateImageHeight;
153 int stateImageWidth;
154 HDPA items;
155
156 DWORD lastKeyPressTimestamp; /* Added */
157 WPARAM charCode; /* Added */
158 INT nSearchParamLength; /* Added */
159 WCHAR szSearchParam[ MAX_PATH ]; /* Added */
160 } TREEVIEW_INFO;
161
162
163 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
164 #define KEY_DELAY 450
165
166 /* bitflags for infoPtr->uInternalStatus */
167
168 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
169 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
170 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
171 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
172 #define TV_RDRAG 0x10 /* dito Rbutton */
173 #define TV_RDRAGGING 0x20
174
175 /* bitflags for infoPtr->timer */
176
177 #define TV_EDIT_TIMER 2
178 #define TV_EDIT_TIMER_SET 2
179
180
181 VOID TREEVIEW_Register (VOID);
182 VOID TREEVIEW_Unregister (VOID);
183
184
185 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
186
187
188 #define TEXT_CALLBACK_SIZE 260
189
190 #define TREEVIEW_LEFT_MARGIN 8
191
192 #define MINIMUM_INDENT 19
193
194 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
195
196 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
197 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
198 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
199
200
201 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
202
203
204 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
205
206
207 static VOID TREEVIEW_Invalidate(TREEVIEW_INFO *, TREEVIEW_ITEM *);
208
209 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
210 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
211 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
212 static LRESULT TREEVIEW_RButtonUp(TREEVIEW_INFO *, LPPOINT);
213 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
214 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
215 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
216 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
217
218
219 /* Random Utilities *****************************************************/
220
221 #ifndef NDEBUG
222 static inline void
223 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
224 {
225 (void)infoPtr;
226 }
227 #else
228 /* The definition is at the end of the file. */
229 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
230 #endif
231
232 /* Returns the treeview private data if hwnd is a treeview.
233 * Otherwise returns an undefined value. */
234 static TREEVIEW_INFO *
235 TREEVIEW_GetInfoPtr(HWND hwnd)
236 {
237 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
238 }
239
240 /* Don't call this. Nothing wants an item index. */
241 static inline int
242 TREEVIEW_GetItemIndex(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
243 {
244 assert(infoPtr != NULL);
245
246 return DPA_GetPtrIndex(infoPtr->items, handle);
247 }
248
249 /* Checks if item has changed and needs to be redrawn */
250 static inline BOOL item_changed (TREEVIEW_ITEM *tiOld, TREEVIEW_ITEM *tiNew, LPTVITEMEXW tvChange)
251 {
252 /* Number of children has changed */
253 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
254 return TRUE;
255
256 /* Image has changed and it's not a callback */
257 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
258 tiNew->iImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Selected image has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
263 tiNew->iSelectedImage != I_IMAGECALLBACK)
264 return TRUE;
265
266 /* Text has changed and it's not a callback */
267 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
268 tiNew->pszText != LPSTR_TEXTCALLBACKW)
269 return TRUE;
270
271 /* Indent has changed */
272 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
273 return TRUE;
274
275 /* Item state has changed */
276 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
277 return TRUE;
278
279 return FALSE;
280 }
281
282 /***************************************************************************
283 * This method checks that handle is an item for this tree.
284 */
285 static BOOL
286 TREEVIEW_ValidItem(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
287 {
288 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
289 {
290 TRACE("invalid item %p\n", handle);
291 return FALSE;
292 }
293 else
294 return TRUE;
295 }
296
297 static HFONT
298 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
299 {
300 LOGFONTW font;
301
302 GetObjectW(hOrigFont, sizeof(font), &font);
303 font.lfWeight = FW_BOLD;
304 return CreateFontIndirectW(&font);
305 }
306
307 static HFONT
308 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
309 {
310 LOGFONTW font;
311
312 GetObjectW(hOrigFont, sizeof(font), &font);
313 font.lfUnderline = TRUE;
314 return CreateFontIndirectW(&font);
315 }
316
317 static inline HFONT
318 TREEVIEW_FontForItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
319 {
320 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
321 return infoPtr->hUnderlineFont;
322 if (item->state & TVIS_BOLD)
323 return infoPtr->hBoldFont;
324 return infoPtr->hFont;
325 }
326
327 /* for trace/debugging purposes only */
328 static const char *
329 TREEVIEW_ItemName(TREEVIEW_ITEM *item)
330 {
331 if (item == NULL) return "<null item>";
332 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
333 if (item->pszText == NULL) return "<null>";
334 return debugstr_w(item->pszText);
335 }
336
337 /* An item is not a child of itself. */
338 static BOOL
339 TREEVIEW_IsChildOf(TREEVIEW_ITEM *parent, TREEVIEW_ITEM *child)
340 {
341 do
342 {
343 child = child->parent;
344 if (child == parent) return TRUE;
345 } while (child != NULL);
346
347 return FALSE;
348 }
349
350
351 /* Tree Traversal *******************************************************/
352
353 /***************************************************************************
354 * This method returns the last expanded sibling or child child item
355 * of a tree node
356 */
357 static TREEVIEW_ITEM *
358 TREEVIEW_GetLastListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
359 {
360 if (!wineItem)
361 return NULL;
362
363 while (wineItem->lastChild)
364 {
365 if (wineItem->state & TVIS_EXPANDED)
366 wineItem = wineItem->lastChild;
367 else
368 break;
369 }
370
371 if (wineItem == infoPtr->root)
372 return NULL;
373
374 return wineItem;
375 }
376
377 /***************************************************************************
378 * This method returns the previous non-hidden item in the list not
379 * considering the tree hierarchy.
380 */
381 static TREEVIEW_ITEM *
382 TREEVIEW_GetPrevListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
383 {
384 if (tvItem->prevSibling)
385 {
386 /* This item has a prevSibling, get the last item in the sibling's tree. */
387 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
388
389 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
390 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
391 else
392 return upItem;
393 }
394 else
395 {
396 /* this item does not have a prevSibling, get the parent */
397 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
398 }
399 }
400
401
402 /***************************************************************************
403 * This method returns the next physical item in the treeview not
404 * considering the tree hierarchy.
405 */
406 static TREEVIEW_ITEM *
407 TREEVIEW_GetNextListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
408 {
409 assert(tvItem != NULL);
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(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
449 LONG count)
450 {
451 TREEVIEW_ITEM *(*next_item)(TREEVIEW_INFO *, TREEVIEW_ITEM *);
452 TREEVIEW_ITEM *previousItem;
453
454 assert(wineItem != 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 wineItem;
467
468 do
469 {
470 previousItem = wineItem;
471 wineItem = next_item(infoPtr, wineItem);
472
473 } while (--count && wineItem != NULL);
474
475
476 return wineItem ? wineItem : previousItem;
477 }
478
479 /* Notifications ************************************************************/
480
481 static INT get_notifycode(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 LRESULT
503 TREEVIEW_SendRealNotify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
504 {
505 TRACE("wParam=%d, lParam=%ld\n", wParam, lParam);
506 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
507 }
508
509 static BOOL
510 TREEVIEW_SendSimpleNotify(TREEVIEW_INFO *infoPtr, UINT code)
511 {
512 NMHDR nmhdr;
513 HWND hwnd = infoPtr->hwnd;
514
515 TRACE("%d\n", code);
516 nmhdr.hwndFrom = hwnd;
517 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
518 nmhdr.code = get_notifycode(infoPtr, code);
519
520 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
521 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
526 {
527 tvItem->mask = mask;
528 tvItem->hItem = item;
529 tvItem->state = item->state;
530 tvItem->stateMask = 0;
531 tvItem->iImage = item->iImage;
532 tvItem->iSelectedImage = item->iSelectedImage;
533 tvItem->cChildren = item->cChildren;
534 tvItem->lParam = item->lParam;
535
536 if(mask & TVIF_TEXT)
537 {
538 if (!infoPtr->bNtfUnicode)
539 {
540 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
541 tvItem->pszText = Alloc (tvItem->cchTextMax);
542 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
543 }
544 else
545 {
546 tvItem->cchTextMax = item->cchTextMax;
547 tvItem->pszText = item->pszText;
548 }
549 }
550 else
551 {
552 tvItem->cchTextMax = 0;
553 tvItem->pszText = NULL;
554 }
555 }
556
557 static BOOL
558 TREEVIEW_SendTreeviewNotify(TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 HWND hwnd = infoPtr->hwnd;
562 NMTREEVIEWW nmhdr;
563 BOOL ret;
564
565 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
566 code, action, oldItem, newItem);
567
568 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWA));
569
570 nmhdr.hdr.hwndFrom = hwnd;
571 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
572 nmhdr.hdr.code = get_notifycode(infoPtr, code);
573 nmhdr.action = action;
574
575 if (oldItem)
576 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
577
578 if (newItem)
579 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
580
581 nmhdr.ptDrag.x = 0;
582 nmhdr.ptDrag.y = 0;
583
584 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
585 (WPARAM)nmhdr.hdr.idFrom,
586 (LPARAM)&nmhdr);
587 if (!infoPtr->bNtfUnicode)
588 {
589 Free(nmhdr.itemOld.pszText);
590 Free(nmhdr.itemNew.pszText);
591 }
592 return ret;
593 }
594
595 static BOOL
596 TREEVIEW_SendTreeviewDnDNotify(TREEVIEW_INFO *infoPtr, UINT code,
597 HTREEITEM dragItem, POINT pt)
598 {
599 HWND hwnd = infoPtr->hwnd;
600 NMTREEVIEWW nmhdr;
601
602 TRACE("code:%d dragitem:%p\n", code, dragItem);
603
604 nmhdr.hdr.hwndFrom = hwnd;
605 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
606 nmhdr.hdr.code = get_notifycode(infoPtr, code);
607 nmhdr.action = 0;
608 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
609 nmhdr.itemNew.hItem = dragItem;
610 nmhdr.itemNew.state = dragItem->state;
611 nmhdr.itemNew.lParam = dragItem->lParam;
612
613 nmhdr.ptDrag.x = pt.x;
614 nmhdr.ptDrag.y = pt.y;
615
616 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
617 (WPARAM)nmhdr.hdr.idFrom,
618 (LPARAM)&nmhdr);
619 }
620
621
622 static BOOL
623 TREEVIEW_SendCustomDrawNotify(TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
624 HDC hdc, RECT rc)
625 {
626 HWND hwnd = infoPtr->hwnd;
627 NMTVCUSTOMDRAW nmcdhdr;
628 LPNMCUSTOMDRAW nmcd;
629
630 TRACE("drawstage:%lx hdc:%p\n", dwDrawStage, hdc);
631
632 nmcd = &nmcdhdr.nmcd;
633 nmcd->hdr.hwndFrom = hwnd;
634 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
635 nmcd->hdr.code = NM_CUSTOMDRAW;
636 nmcd->dwDrawStage = dwDrawStage;
637 nmcd->hdc = hdc;
638 nmcd->rc = rc;
639 nmcd->dwItemSpec = 0;
640 nmcd->uItemState = 0;
641 nmcd->lItemlParam = 0;
642 nmcdhdr.clrText = infoPtr->clrText;
643 nmcdhdr.clrTextBk = infoPtr->clrBk;
644 nmcdhdr.iLevel = 0;
645
646 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
647 (WPARAM)nmcd->hdr.idFrom,
648 (LPARAM)&nmcdhdr);
649 }
650
651
652
653 /* FIXME: need to find out when the flags in uItemState need to be set */
654
655 static BOOL
656 TREEVIEW_SendCustomDrawItemNotify(TREEVIEW_INFO *infoPtr, HDC hdc,
657 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
658 NMTVCUSTOMDRAW *nmcdhdr)
659 {
660 HWND hwnd = infoPtr->hwnd;
661 LPNMCUSTOMDRAW nmcd;
662 DWORD dwDrawStage;
663 DWORD_PTR dwItemSpec;
664 UINT uItemState;
665 INT retval;
666
667 dwDrawStage = CDDS_ITEM | uItemDrawState;
668 dwItemSpec = (DWORD_PTR)wineItem;
669 uItemState = 0;
670 if (wineItem->state & TVIS_SELECTED)
671 uItemState |= CDIS_SELECTED;
672 if (wineItem == infoPtr->selectedItem)
673 uItemState |= CDIS_FOCUS;
674 if (wineItem == infoPtr->hotItem)
675 uItemState |= CDIS_HOT;
676
677 nmcd = &nmcdhdr->nmcd;
678 nmcd->hdr.hwndFrom = hwnd;
679 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
680 nmcd->hdr.code = NM_CUSTOMDRAW;
681 nmcd->dwDrawStage = dwDrawStage;
682 nmcd->hdc = hdc;
683 nmcd->rc = wineItem->rect;
684 nmcd->dwItemSpec = dwItemSpec;
685 nmcd->uItemState = uItemState;
686 nmcd->lItemlParam = wineItem->lParam;
687 nmcdhdr->iLevel = wineItem->iLevel;
688
689 TRACE("drawstage:%lx hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
690 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
691 nmcd->uItemState, nmcd->lItemlParam);
692
693 retval = TREEVIEW_SendRealNotify(infoPtr,
694 (WPARAM)nmcd->hdr.idFrom,
695 (LPARAM)nmcdhdr);
696
697 return (BOOL)retval;
698 }
699
700 static BOOL
701 TREEVIEW_BeginLabelEditNotify(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
702 {
703 HWND hwnd = infoPtr->hwnd;
704 NMTVDISPINFOW tvdi;
705 BOOL ret;
706
707 tvdi.hdr.hwndFrom = hwnd;
708 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
709 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
710
711 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
712 &tvdi.item, editItem);
713
714 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
715
716 if (!infoPtr->bNtfUnicode)
717 Free(tvdi.item.pszText);
718
719 return ret;
720 }
721
722 static void
723 TREEVIEW_UpdateDispInfo(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
724 UINT mask)
725 {
726 NMTVDISPINFOW callback;
727 HWND hwnd = infoPtr->hwnd;
728
729 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
730 mask &= wineItem->callbackMask;
731
732 if (mask == 0) return;
733
734 callback.hdr.hwndFrom = hwnd;
735 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
736 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
737
738 /* 'state' always contains valid value, as well as 'lParam'.
739 * All other parameters are uninitialized.
740 */
741 callback.item.pszText = wineItem->pszText;
742 callback.item.cchTextMax = wineItem->cchTextMax;
743 callback.item.mask = mask;
744 callback.item.hItem = wineItem;
745 callback.item.state = wineItem->state;
746 callback.item.lParam = wineItem->lParam;
747
748 /* If text is changed we need to recalculate textWidth */
749 if (mask & TVIF_TEXT)
750 wineItem->textWidth = 0;
751
752 TREEVIEW_SendRealNotify(infoPtr,
753 (WPARAM)callback.hdr.idFrom, (LPARAM)&callback);
754
755 /* It may have changed due to a call to SetItem. */
756 mask &= wineItem->callbackMask;
757
758 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
759 {
760 /* Instead of copying text into our buffer user specified its own */
761 if (!infoPtr->bNtfUnicode) {
762 LPWSTR newText;
763 int buflen;
764 int len = MultiByteToWideChar( CP_ACP, 0,
765 (LPSTR)callback.item.pszText, -1,
766 NULL, 0);
767 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
768 newText = (LPWSTR)ReAlloc(wineItem->pszText, buflen);
769
770 TRACE("returned str %s, len=%d, buflen=%d\n",
771 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
772
773 if (newText)
774 {
775 wineItem->pszText = newText;
776 MultiByteToWideChar( CP_ACP, 0,
777 (LPSTR)callback.item.pszText, -1,
778 wineItem->pszText, buflen/sizeof(WCHAR));
779 wineItem->cchTextMax = buflen/sizeof(WCHAR);
780 }
781 /* If ReAlloc fails we have nothing to do, but keep original text */
782 }
783 else {
784 int len = max(lstrlenW(callback.item.pszText) + 1,
785 TEXT_CALLBACK_SIZE);
786 LPWSTR newText = ReAlloc(wineItem->pszText, len);
787
788 TRACE("returned wstr %s, len=%d\n",
789 debugstr_w(callback.item.pszText), len);
790
791 if (newText)
792 {
793 wineItem->pszText = newText;
794 strcpyW(wineItem->pszText, callback.item.pszText);
795 wineItem->cchTextMax = len;
796 }
797 /* If ReAlloc fails we have nothing to do, but keep original text */
798 }
799 }
800 else if (mask & TVIF_TEXT) {
801 /* User put text into our buffer, that is ok unless A string */
802 if (!infoPtr->bNtfUnicode) {
803 LPWSTR newText;
804 LPWSTR oldText = NULL;
805 int buflen;
806 int len = MultiByteToWideChar( CP_ACP, 0,
807 (LPSTR)callback.item.pszText, -1,
808 NULL, 0);
809 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
810 newText = (LPWSTR)Alloc(buflen);
811
812 TRACE("same buffer str %s, len=%d, buflen=%d\n",
813 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
814
815 if (newText)
816 {
817 oldText = wineItem->pszText;
818 wineItem->pszText = newText;
819 MultiByteToWideChar( CP_ACP, 0,
820 (LPSTR)callback.item.pszText, -1,
821 wineItem->pszText, buflen/sizeof(WCHAR));
822 wineItem->cchTextMax = buflen/sizeof(WCHAR);
823 if (oldText)
824 Free(oldText);
825 }
826 }
827 }
828
829 if (mask & TVIF_IMAGE)
830 wineItem->iImage = callback.item.iImage;
831
832 if (mask & TVIF_SELECTEDIMAGE)
833 wineItem->iSelectedImage = callback.item.iSelectedImage;
834
835 if (mask & TVIF_CHILDREN)
836 wineItem->cChildren = callback.item.cChildren;
837
838 /* These members are now permanently set. */
839 if (callback.item.mask & TVIF_DI_SETITEM)
840 wineItem->callbackMask &= ~callback.item.mask;
841 }
842
843 /***************************************************************************
844 * This function uses cChildren field to decide whether the item has
845 * children or not.
846 * Note: if this returns TRUE, the child items may not actually exist,
847 * they could be virtual.
848 *
849 * Just use wineItem->firstChild to check for physical children.
850 */
851 static BOOL
852 TREEVIEW_HasChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
853 {
854 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
855
856 return wineItem->cChildren > 0;
857 }
858
859
860 /* Item Position ********************************************************/
861
862 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
863 static VOID
864 TREEVIEW_ComputeItemInternalMetrics(TREEVIEW_INFO *infoPtr,
865 TREEVIEW_ITEM *item)
866 {
867 /* Same effect, different optimisation. */
868 #if 0
869 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
870 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
871 #else
872 BOOL lar = ((infoPtr->dwStyle
873 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
874 > TVS_LINESATROOT);
875 #endif
876
877 item->linesOffset = infoPtr->uIndent * (item->iLevel + lar - 1)
878 - infoPtr->scrollX;
879 item->stateOffset = item->linesOffset + infoPtr->uIndent;
880 item->imageOffset = item->stateOffset
881 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
882 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
883 }
884
885 static VOID
886 TREEVIEW_ComputeTextWidth(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
887 {
888 HDC hdc;
889 HFONT hOldFont=0;
890 SIZE sz;
891
892 /* DRAW's OM docker creates items like this */
893 if (item->pszText == NULL)
894 {
895 item->textWidth = 0;
896 return;
897 }
898
899 if (hDC != 0)
900 {
901 hdc = hDC;
902 }
903 else
904 {
905 hdc = GetDC(infoPtr->hwnd);
906 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
907 }
908
909 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
910 item->textWidth = sz.cx;
911
912 if (hDC == 0)
913 {
914 SelectObject(hdc, hOldFont);
915 ReleaseDC(0, hdc);
916 }
917 }
918
919 static VOID
920 TREEVIEW_ComputeItemRect(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
921 {
922 item->rect.top = infoPtr->uItemHeight *
923 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
924
925 item->rect.bottom = item->rect.top
926 + infoPtr->uItemHeight * item->iIntegral - 1;
927
928 item->rect.left = 0;
929 item->rect.right = infoPtr->clientWidth;
930 }
931
932 /* We know that only items after start need their order updated. */
933 static void
934 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
935 {
936 TREEVIEW_ITEM *item;
937 int order;
938
939 if (!start)
940 {
941 start = infoPtr->root->firstChild;
942 order = 0;
943 }
944 else
945 order = start->visibleOrder;
946
947 for (item = start; item != NULL;
948 item = TREEVIEW_GetNextListItem(infoPtr, item))
949 {
950 item->visibleOrder = order;
951 order += item->iIntegral;
952 }
953
954 infoPtr->maxVisibleOrder = order;
955
956 for (item = start; item != NULL;
957 item = TREEVIEW_GetNextListItem(infoPtr, item))
958 {
959 TREEVIEW_ComputeItemRect(infoPtr, item);
960 }
961 }
962
963
964 /* Update metrics of all items in selected subtree.
965 * root must be expanded
966 */
967 static VOID
968 TREEVIEW_UpdateSubTree(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
969 {
970 TREEVIEW_ITEM *sibling;
971 HDC hdc;
972 HFONT hOldFont;
973
974 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
975 return;
976
977 root->state &= ~TVIS_EXPANDED;
978 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
979 root->state |= TVIS_EXPANDED;
980
981 hdc = GetDC(infoPtr->hwnd);
982 hOldFont = SelectObject(hdc, infoPtr->hFont);
983
984 for (; root != sibling;
985 root = TREEVIEW_GetNextListItem(infoPtr, root))
986 {
987 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
988
989 if (root->callbackMask & TVIF_TEXT)
990 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
991
992 if (root->textWidth == 0)
993 {
994 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
995 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
996 }
997 }
998
999 SelectObject(hdc, hOldFont);
1000 ReleaseDC(infoPtr->hwnd, hdc);
1001 }
1002
1003 /* Item Allocation **********************************************************/
1004
1005 static TREEVIEW_ITEM *
1006 TREEVIEW_AllocateItem(TREEVIEW_INFO *infoPtr)
1007 {
1008 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1009
1010 if (!newItem)
1011 return NULL;
1012
1013 newItem->iImage = -1;
1014 newItem->iSelectedImage = -1;
1015
1016 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1017 {
1018 Free(newItem);
1019 return NULL;
1020 }
1021
1022 return newItem;
1023 }
1024
1025 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1026 * free item->pszText. */
1027 static void
1028 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1029 {
1030 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1031 Free(item);
1032 if (infoPtr->selectedItem == item)
1033 infoPtr->selectedItem = NULL;
1034 if (infoPtr->hotItem == item)
1035 infoPtr->hotItem = NULL;
1036 if (infoPtr->focusedItem == item)
1037 infoPtr->focusedItem = NULL;
1038 if (infoPtr->firstVisible == item)
1039 infoPtr->firstVisible = NULL;
1040 if (infoPtr->dropItem == item)
1041 infoPtr->dropItem = NULL;
1042 if (infoPtr->insertMarkItem == item)
1043 infoPtr->insertMarkItem = NULL;
1044 }
1045
1046
1047 /* Item Insertion *******************************************************/
1048
1049 /***************************************************************************
1050 * This method inserts newItem before sibling as a child of parent.
1051 * sibling can be NULL, but only if parent has no children.
1052 */
1053 static void
1054 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1055 TREEVIEW_ITEM *parent)
1056 {
1057 assert(newItem != NULL);
1058 assert(parent != NULL);
1059
1060 if (sibling != NULL)
1061 {
1062 assert(sibling->parent == parent);
1063
1064 if (sibling->prevSibling != NULL)
1065 sibling->prevSibling->nextSibling = newItem;
1066
1067 newItem->prevSibling = sibling->prevSibling;
1068 sibling->prevSibling = newItem;
1069 }
1070 else
1071 newItem->prevSibling = NULL;
1072
1073 newItem->nextSibling = sibling;
1074
1075 if (parent->firstChild == sibling)
1076 parent->firstChild = newItem;
1077
1078 if (parent->lastChild == NULL)
1079 parent->lastChild = newItem;
1080 }
1081
1082 /***************************************************************************
1083 * This method inserts newItem after sibling as a child of parent.
1084 * sibling can be NULL, but only if parent has no children.
1085 */
1086 static void
1087 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1088 TREEVIEW_ITEM *parent)
1089 {
1090 assert(newItem != NULL);
1091 assert(parent != NULL);
1092
1093 if (sibling != NULL)
1094 {
1095 assert(sibling->parent == parent);
1096
1097 if (sibling->nextSibling != NULL)
1098 sibling->nextSibling->prevSibling = newItem;
1099
1100 newItem->nextSibling = sibling->nextSibling;
1101 sibling->nextSibling = newItem;
1102 }
1103 else
1104 newItem->nextSibling = NULL;
1105
1106 newItem->prevSibling = sibling;
1107
1108 if (parent->lastChild == sibling)
1109 parent->lastChild = newItem;
1110
1111 if (parent->firstChild == NULL)
1112 parent->firstChild = newItem;
1113 }
1114
1115 static BOOL
1116 TREEVIEW_DoSetItemT(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1117 const TVITEMEXW *tvItem, BOOL isW)
1118 {
1119 UINT callbackClear = 0;
1120 UINT callbackSet = 0;
1121
1122 TRACE("item %p\n", wineItem);
1123 /* Do this first in case it fails. */
1124 if (tvItem->mask & TVIF_TEXT)
1125 {
1126 wineItem->textWidth = 0; /* force width recalculation */
1127 if (tvItem->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
1128 {
1129 int len;
1130 LPWSTR newText;
1131 if (isW)
1132 len = lstrlenW(tvItem->pszText) + 1;
1133 else
1134 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1135
1136 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1137
1138 if (newText == NULL) return FALSE;
1139
1140 callbackClear |= TVIF_TEXT;
1141
1142 wineItem->pszText = newText;
1143 wineItem->cchTextMax = len;
1144 if (isW)
1145 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1146 else
1147 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1148 wineItem->pszText, len);
1149
1150 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1151 }
1152 else
1153 {
1154 callbackSet |= TVIF_TEXT;
1155
1156 wineItem->pszText = ReAlloc(wineItem->pszText,
1157 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1158 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1159 TRACE("setting callback, item %p\n", wineItem);
1160 }
1161 }
1162
1163 if (tvItem->mask & TVIF_CHILDREN)
1164 {
1165 wineItem->cChildren = tvItem->cChildren;
1166
1167 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1168 callbackSet |= TVIF_CHILDREN;
1169 else
1170 callbackClear |= TVIF_CHILDREN;
1171 }
1172
1173 if (tvItem->mask & TVIF_IMAGE)
1174 {
1175 wineItem->iImage = tvItem->iImage;
1176
1177 if (wineItem->iImage == I_IMAGECALLBACK)
1178 callbackSet |= TVIF_IMAGE;
1179 else
1180 callbackClear |= TVIF_IMAGE;
1181 }
1182
1183 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1184 {
1185 wineItem->iSelectedImage = tvItem->iSelectedImage;
1186
1187 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1188 callbackSet |= TVIF_SELECTEDIMAGE;
1189 else
1190 callbackClear |= TVIF_SELECTEDIMAGE;
1191 }
1192
1193 if (tvItem->mask & TVIF_PARAM)
1194 wineItem->lParam = tvItem->lParam;
1195
1196 /* If the application sets TVIF_INTEGRAL without
1197 * supplying a TVITEMEX structure, it's toast. */
1198 if (tvItem->mask & TVIF_INTEGRAL)
1199 wineItem->iIntegral = tvItem->iIntegral;
1200
1201 if (tvItem->mask & TVIF_STATE)
1202 {
1203 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1204 tvItem->stateMask);
1205 wineItem->state &= ~tvItem->stateMask;
1206 wineItem->state |= (tvItem->state & tvItem->stateMask);
1207 }
1208
1209 wineItem->callbackMask |= callbackSet;
1210 wineItem->callbackMask &= ~callbackClear;
1211
1212 return TRUE;
1213 }
1214
1215 /* Note that the new item is pre-zeroed. */
1216 static LRESULT
1217 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1218 {
1219 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1220 HTREEITEM insertAfter;
1221 TREEVIEW_ITEM *newItem, *parentItem;
1222 BOOL bTextUpdated = FALSE;
1223
1224 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1225 {
1226 parentItem = infoPtr->root;
1227 }
1228 else
1229 {
1230 parentItem = ptdi->hParent;
1231
1232 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1233 {
1234 WARN("invalid parent %p\n", parentItem);
1235 return (LRESULT)(HTREEITEM)NULL;
1236 }
1237 }
1238
1239 insertAfter = ptdi->hInsertAfter;
1240
1241 /* Validate this now for convenience. */
1242 switch ((DWORD_PTR)insertAfter)
1243 {
1244 case (DWORD_PTR)TVI_FIRST:
1245 case (DWORD_PTR)TVI_LAST:
1246 case (DWORD_PTR)TVI_SORT:
1247 break;
1248
1249 default:
1250 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1251 insertAfter->parent != parentItem)
1252 {
1253 WARN("invalid insert after %p\n", insertAfter);
1254 insertAfter = TVI_LAST;
1255 }
1256 }
1257
1258 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1259 (tvItem->mask & TVIF_TEXT)
1260 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1261 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1262 : "<no label>");
1263
1264 newItem = TREEVIEW_AllocateItem(infoPtr);
1265 if (newItem == NULL)
1266 return (LRESULT)(HTREEITEM)NULL;
1267
1268 newItem->parent = parentItem;
1269 newItem->iIntegral = 1;
1270
1271 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1272 return (LRESULT)(HTREEITEM)NULL;
1273
1274 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1275
1276 infoPtr->uNumItems++;
1277
1278 switch ((DWORD_PTR)insertAfter)
1279 {
1280 case (DWORD_PTR)TVI_FIRST:
1281 {
1282 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1283 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1284 if (infoPtr->firstVisible == originalFirst)
1285 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1286 }
1287 break;
1288
1289 case (DWORD_PTR)TVI_LAST:
1290 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1291 break;
1292
1293 /* hInsertAfter names a specific item we want to insert after */
1294 default:
1295 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1296 break;
1297
1298 case (DWORD_PTR)TVI_SORT:
1299 {
1300 TREEVIEW_ITEM *aChild;
1301 TREEVIEW_ITEM *previousChild = NULL;
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 bItemInserted = TRUE;
1321 break;
1322 }
1323 else if (comp > 0) /* we are bigger than the current one */
1324 {
1325 previousChild = aChild;
1326
1327 /* This will help us to exit if there is no more sibling */
1328 aChild = (aChild->nextSibling == 0)
1329 ? NULL
1330 : aChild->nextSibling;
1331
1332 /* Look at the next item */
1333 continue;
1334 }
1335 else if (comp == 0)
1336 {
1337 /*
1338 * An item with this name is already existing, therefore,
1339 * we add after the one we found
1340 */
1341 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1342 bItemInserted = TRUE;
1343 break;
1344 }
1345 }
1346
1347 /*
1348 * we reach the end of the child list and the item has not
1349 * yet been inserted, therefore, insert it after the last child.
1350 */
1351 if ((!bItemInserted) && (aChild == NULL))
1352 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1353
1354 break;
1355 }
1356 }
1357
1358
1359 TRACE("new item %p; parent %p, mask %x\n", newItem,
1360 newItem->parent, tvItem->mask);
1361
1362 newItem->iLevel = newItem->parent->iLevel + 1;
1363
1364 if (newItem->parent->cChildren == 0)
1365 newItem->parent->cChildren = 1;
1366
1367 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1368 {
1369 if (STATEIMAGEINDEX(newItem->state) == 0)
1370 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1371 }
1372
1373 if (infoPtr->firstVisible == NULL)
1374 infoPtr->firstVisible = newItem;
1375
1376 TREEVIEW_VerifyTree(infoPtr);
1377
1378 if (parentItem == infoPtr->root ||
1379 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1380 {
1381 TREEVIEW_ITEM *item;
1382 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1383
1384 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1385 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1386
1387 if (!bTextUpdated)
1388 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1389
1390 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1391 TREEVIEW_UpdateScrollBars(infoPtr);
1392 /*
1393 * if the item was inserted in a visible part of the tree,
1394 * invalidate it, as well as those after it
1395 */
1396 for (item = newItem;
1397 item != NULL;
1398 item = TREEVIEW_GetNextListItem(infoPtr, item))
1399 TREEVIEW_Invalidate(infoPtr, item);
1400 }
1401 else
1402 {
1403 newItem->visibleOrder = -1;
1404
1405 /* refresh treeview if newItem is the first item inserted under parentItem */
1406 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1407 {
1408 /* parent got '+' - update it */
1409 TREEVIEW_Invalidate(infoPtr, parentItem);
1410 }
1411 }
1412
1413 return (LRESULT)newItem;
1414 }
1415
1416 /* Item Deletion ************************************************************/
1417 static void
1418 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1419
1420 static void
1421 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *parentItem)
1422 {
1423 TREEVIEW_ITEM *kill = parentItem->firstChild;
1424
1425 while (kill != NULL)
1426 {
1427 TREEVIEW_ITEM *next = kill->nextSibling;
1428
1429 TREEVIEW_RemoveItem(infoPtr, kill);
1430
1431 kill = next;
1432 }
1433
1434 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1435 assert(parentItem->firstChild == NULL);
1436 assert(parentItem->lastChild == NULL);
1437 }
1438
1439 static void
1440 TREEVIEW_UnlinkItem(TREEVIEW_ITEM *item)
1441 {
1442 TREEVIEW_ITEM *parentItem = item->parent;
1443
1444 assert(item != NULL);
1445 assert(item->parent != NULL); /* i.e. it must not be the root */
1446
1447 if (parentItem->firstChild == item)
1448 parentItem->firstChild = item->nextSibling;
1449
1450 if (parentItem->lastChild == item)
1451 parentItem->lastChild = item->prevSibling;
1452
1453 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1454 && parentItem->cChildren > 0)
1455 parentItem->cChildren = 0;
1456
1457 if (item->prevSibling)
1458 item->prevSibling->nextSibling = item->nextSibling;
1459
1460 if (item->nextSibling)
1461 item->nextSibling->prevSibling = item->prevSibling;
1462 }
1463
1464 static void
1465 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1466 {
1467 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1468
1469 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1470 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1471
1472 if (wineItem->firstChild)
1473 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1474
1475 TREEVIEW_UnlinkItem(wineItem);
1476
1477 infoPtr->uNumItems--;
1478
1479 if (wineItem->pszText && wineItem->pszText != LPSTR_TEXTCALLBACKW)
1480 Free(wineItem->pszText);
1481
1482 TREEVIEW_FreeItem(infoPtr, wineItem);
1483 }
1484
1485
1486 /* Empty out the tree. */
1487 static void
1488 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1489 {
1490 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1491
1492 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1493 }
1494
1495 static LRESULT
1496 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1497 {
1498 TREEVIEW_ITEM *newSelection = NULL;
1499 TREEVIEW_ITEM *newFirstVisible = NULL;
1500 TREEVIEW_ITEM *parent, *prev = NULL;
1501 BOOL visible = FALSE;
1502
1503 if (wineItem == TVI_ROOT)
1504 {
1505 TRACE("TVI_ROOT\n");
1506 parent = infoPtr->root;
1507 newSelection = NULL;
1508 visible = TRUE;
1509 TREEVIEW_RemoveTree(infoPtr);
1510 }
1511 else
1512 {
1513 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1514 return FALSE;
1515
1516 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1517 parent = wineItem->parent;
1518
1519 if (ISVISIBLE(wineItem))
1520 {
1521 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1522 visible = TRUE;
1523 }
1524
1525 if (infoPtr->selectedItem != NULL
1526 && (wineItem == infoPtr->selectedItem
1527 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1528 {
1529 if (wineItem->nextSibling)
1530 newSelection = wineItem->nextSibling;
1531 else if (wineItem->parent != infoPtr->root)
1532 newSelection = wineItem->parent;
1533 else
1534 newSelection = wineItem->prevSibling;
1535 TRACE("newSelection = %p\n", newSelection);
1536 }
1537
1538 if (infoPtr->firstVisible == wineItem)
1539 {
1540 if (wineItem->nextSibling)
1541 newFirstVisible = wineItem->nextSibling;
1542 else if (wineItem->prevSibling)
1543 newFirstVisible = wineItem->prevSibling;
1544 else if (wineItem->parent != infoPtr->root)
1545 newFirstVisible = wineItem->parent;
1546 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1547 }
1548 else
1549 newFirstVisible = infoPtr->firstVisible;
1550
1551 TREEVIEW_RemoveItem(infoPtr, wineItem);
1552 }
1553
1554 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1555 if (!infoPtr->selectedItem && newSelection)
1556 {
1557 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1558 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1559 }
1560
1561 /* Validate insertMark dropItem.
1562 * hotItem ??? - used for comparison only.
1563 */
1564 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1565 infoPtr->insertMarkItem = 0;
1566
1567 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1568 infoPtr->dropItem = 0;
1569
1570 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1571 newFirstVisible = infoPtr->root->firstChild;
1572
1573 TREEVIEW_VerifyTree(infoPtr);
1574
1575
1576 if (visible)
1577 {
1578 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1579 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1580 TREEVIEW_UpdateScrollBars(infoPtr);
1581 TREEVIEW_Invalidate(infoPtr, NULL);
1582 }
1583 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1584 {
1585 /* parent lost '+/-' - update it */
1586 TREEVIEW_Invalidate(infoPtr, parent);
1587 }
1588
1589 return TRUE;
1590 }
1591
1592
1593 /* Get/Set Messages *********************************************************/
1594 static LRESULT
1595 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam, LPARAM lParam)
1596 {
1597 if(wParam)
1598 infoPtr->bRedraw = TRUE;
1599 else
1600 infoPtr->bRedraw = FALSE;
1601
1602 return 0;
1603 }
1604
1605 static LRESULT
1606 TREEVIEW_GetIndent(TREEVIEW_INFO *infoPtr)
1607 {
1608 TRACE("\n");
1609 return infoPtr->uIndent;
1610 }
1611
1612 static LRESULT
1613 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1614 {
1615 TRACE("\n");
1616
1617 if (newIndent < MINIMUM_INDENT)
1618 newIndent = MINIMUM_INDENT;
1619
1620 if (infoPtr->uIndent != newIndent)
1621 {
1622 infoPtr->uIndent = newIndent;
1623 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1624 TREEVIEW_UpdateScrollBars(infoPtr);
1625 TREEVIEW_Invalidate(infoPtr, NULL);
1626 }
1627
1628 return 0;
1629 }
1630
1631
1632 static LRESULT
1633 TREEVIEW_GetToolTips(TREEVIEW_INFO *infoPtr)
1634 {
1635 TRACE("\n");
1636 return (LRESULT)infoPtr->hwndToolTip;
1637 }
1638
1639 static LRESULT
1640 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1641 {
1642 HWND prevToolTip;
1643
1644 TRACE("\n");
1645 prevToolTip = infoPtr->hwndToolTip;
1646 infoPtr->hwndToolTip = hwndTT;
1647
1648 return (LRESULT)prevToolTip;
1649 }
1650
1651 static LRESULT
1652 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1653 {
1654 BOOL rc = infoPtr->bNtfUnicode;
1655 infoPtr->bNtfUnicode = fUnicode;
1656 return rc;
1657 }
1658
1659 static LRESULT
1660 TREEVIEW_GetUnicodeFormat(TREEVIEW_INFO *infoPtr)
1661 {
1662 return infoPtr->bNtfUnicode;
1663 }
1664
1665 static LRESULT
1666 TREEVIEW_GetScrollTime(TREEVIEW_INFO *infoPtr)
1667 {
1668 return infoPtr->uScrollTime;
1669 }
1670
1671 static LRESULT
1672 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1673 {
1674 UINT uOldScrollTime = infoPtr->uScrollTime;
1675
1676 infoPtr->uScrollTime = min(uScrollTime, 100);
1677
1678 return uOldScrollTime;
1679 }
1680
1681
1682 static LRESULT
1683 TREEVIEW_GetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam)
1684 {
1685 TRACE("\n");
1686
1687 switch (wParam)
1688 {
1689 case (WPARAM)TVSIL_NORMAL:
1690 return (LRESULT)infoPtr->himlNormal;
1691
1692 case (WPARAM)TVSIL_STATE:
1693 return (LRESULT)infoPtr->himlState;
1694
1695 default:
1696 return 0;
1697 }
1698 }
1699
1700 #define TVHEIGHT_MIN 16
1701 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1702
1703 /* Compute the natural height for items. */
1704 static UINT
1705 TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
1706 {
1707 TEXTMETRICW tm;
1708 HDC hdc = GetDC(0);
1709 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1710 UINT height;
1711
1712 /* Height is the maximum of:
1713 * 16 (a hack because our fonts are tiny), and
1714 * The text height + border & margin, and
1715 * The size of the normal image list
1716 */
1717 GetTextMetricsW(hdc, &tm);
1718 SelectObject(hdc, hOldFont);
1719 ReleaseDC(0, hdc);
1720
1721 height = TVHEIGHT_MIN;
1722 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1723 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1724 if (height < infoPtr->normalImageHeight)
1725 height = infoPtr->normalImageHeight;
1726 return height;
1727 }
1728
1729 static LRESULT
1730 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1731 {
1732 HIMAGELIST himlOld = 0;
1733 int oldWidth = infoPtr->normalImageWidth;
1734 int oldHeight = infoPtr->normalImageHeight;
1735
1736
1737 TRACE("%x,%p\n", wParam, himlNew);
1738
1739 switch (wParam)
1740 {
1741 case (WPARAM)TVSIL_NORMAL:
1742 himlOld = infoPtr->himlNormal;
1743 infoPtr->himlNormal = himlNew;
1744
1745 if (himlNew != NULL)
1746 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1747 &infoPtr->normalImageHeight);
1748 else
1749 {
1750 infoPtr->normalImageWidth = 0;
1751 infoPtr->normalImageHeight = 0;
1752 }
1753
1754 break;
1755
1756 case (WPARAM)TVSIL_STATE:
1757 himlOld = infoPtr->himlState;
1758 infoPtr->himlState = himlNew;
1759
1760 if (himlNew != NULL)
1761 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1762 &infoPtr->stateImageHeight);
1763 else
1764 {
1765 infoPtr->stateImageWidth = 0;
1766 infoPtr->stateImageHeight = 0;
1767 }
1768
1769 break;
1770 }
1771
1772 if (oldWidth != infoPtr->normalImageWidth ||
1773 oldHeight != infoPtr->normalImageHeight)
1774 {
1775 BOOL bRecalcVisible = FALSE;
1776
1777 if (oldHeight != infoPtr->normalImageHeight &&
1778 !infoPtr->bHeightSet)
1779 {
1780 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1781 bRecalcVisible = TRUE;
1782 }
1783
1784 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1785 infoPtr->normalImageWidth != infoPtr->uIndent)
1786 {
1787 infoPtr->uIndent = infoPtr->normalImageWidth;
1788 bRecalcVisible = TRUE;
1789 }
1790
1791 if (bRecalcVisible)
1792 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1793
1794 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1795 TREEVIEW_UpdateScrollBars(infoPtr);
1796 }
1797
1798 TREEVIEW_Invalidate(infoPtr, NULL);
1799
1800 return (LRESULT)himlOld;
1801 }
1802
1803 static LRESULT
1804 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1805 {
1806 INT prevHeight = infoPtr->uItemHeight;
1807
1808 TRACE("%d \n", newHeight);
1809 if (newHeight == -1)
1810 {
1811 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1812 infoPtr->bHeightSet = FALSE;
1813 }
1814 else
1815 {
1816 infoPtr->uItemHeight = newHeight;
1817 infoPtr->bHeightSet = TRUE;
1818 }
1819
1820 /* Round down, unless we support odd ("non even") heights. */
1821 if (!(infoPtr->dwStyle) & TVS_NONEVENHEIGHT)
1822 infoPtr->uItemHeight &= ~1;
1823
1824 if (infoPtr->uItemHeight != prevHeight)
1825 {
1826 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1827 TREEVIEW_UpdateScrollBars(infoPtr);
1828 TREEVIEW_Invalidate(infoPtr, NULL);
1829 }
1830
1831 return prevHeight;
1832 }
1833
1834 static LRESULT
1835 TREEVIEW_GetItemHeight(TREEVIEW_INFO *infoPtr)
1836 {
1837 TRACE("\n");
1838 return infoPtr->uItemHeight;
1839 }
1840
1841
1842 static LRESULT
1843 TREEVIEW_GetFont(TREEVIEW_INFO *infoPtr)
1844 {
1845 TRACE("%p\n", infoPtr->hFont);
1846 return (LRESULT)infoPtr->hFont;
1847 }
1848
1849
1850 static INT CALLBACK
1851 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1852 {
1853 (void)unused;
1854
1855 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1856
1857 return 1;
1858 }
1859
1860 static LRESULT
1861 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1862 {
1863 UINT uHeight = infoPtr->uItemHeight;
1864
1865 TRACE("%p %i\n", hFont, bRedraw);
1866
1867 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1868
1869 DeleteObject(infoPtr->hBoldFont);
1870 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1871 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1872
1873 if (!infoPtr->bHeightSet)
1874 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1875
1876 if (uHeight != infoPtr->uItemHeight)
1877 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1878
1879 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1880
1881 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1882 TREEVIEW_UpdateScrollBars(infoPtr);
1883
1884 if (bRedraw)
1885 TREEVIEW_Invalidate(infoPtr, NULL);
1886
1887 return 0;
1888 }
1889
1890
1891 static LRESULT
1892 TREEVIEW_GetLineColor(TREEVIEW_INFO *infoPtr)
1893 {
1894 TRACE("\n");
1895 return (LRESULT)infoPtr->clrLine;
1896 }
1897
1898 static LRESULT
1899 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1900 {
1901 COLORREF prevColor = infoPtr->clrLine;
1902
1903 TRACE("\n");
1904 infoPtr->clrLine = color;
1905 return (LRESULT)prevColor;
1906 }
1907
1908
1909 static LRESULT
1910 TREEVIEW_GetTextColor(TREEVIEW_INFO *infoPtr)
1911 {
1912 TRACE("\n");
1913 return (LRESULT)infoPtr->clrText;
1914 }
1915
1916 static LRESULT
1917 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1918 {
1919 COLORREF prevColor = infoPtr->clrText;
1920
1921 TRACE("\n");
1922 infoPtr->clrText = color;
1923
1924 if (infoPtr->clrText != prevColor)
1925 TREEVIEW_Invalidate(infoPtr, NULL);
1926
1927 return (LRESULT)prevColor;
1928 }
1929
1930
1931 static LRESULT
1932 TREEVIEW_GetBkColor(TREEVIEW_INFO *infoPtr)
1933 {
1934 TRACE("\n");
1935 return (LRESULT)infoPtr->clrBk;
1936 }
1937
1938 static LRESULT
1939 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1940 {
1941 COLORREF prevColor = infoPtr->clrBk;
1942
1943 TRACE("\n");
1944 infoPtr->clrBk = newColor;
1945
1946 if (newColor != prevColor)
1947 TREEVIEW_Invalidate(infoPtr, NULL);
1948
1949 return (LRESULT)prevColor;
1950 }
1951
1952
1953 static LRESULT
1954 TREEVIEW_GetInsertMarkColor(TREEVIEW_INFO *infoPtr)
1955 {
1956 TRACE("\n");
1957 return (LRESULT)infoPtr->clrInsertMark;
1958 }
1959
1960 static LRESULT
1961 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1962 {
1963 COLORREF prevColor = infoPtr->clrInsertMark;
1964
1965 TRACE("%lx\n", color);
1966 infoPtr->clrInsertMark = color;
1967
1968 return (LRESULT)prevColor;
1969 }
1970
1971
1972 static LRESULT
1973 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1974 {
1975 TRACE("%d %p\n", wParam, item);
1976
1977 if (!TREEVIEW_ValidItem(infoPtr, item))
1978 return 0;
1979
1980 infoPtr->insertBeforeorAfter = wParam;
1981 infoPtr->insertMarkItem = item;
1982
1983 TREEVIEW_Invalidate(infoPtr, NULL);
1984
1985 return 1;
1986 }
1987
1988
1989 /************************************************************************
1990 * Some serious braindamage here. lParam is a pointer to both the
1991 * input HTREEITEM and the output RECT.
1992 */
1993 static LRESULT
1994 TREEVIEW_GetItemRect(TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
1995 {
1996 TREEVIEW_ITEM *wineItem;
1997 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
1998
1999 TRACE("\n");
2000 /*
2001 * validate parameters
2002 */
2003 if (pItem == NULL)
2004 return FALSE;
2005
2006 wineItem = *pItem;
2007 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2008 return FALSE;
2009
2010 /*
2011 * If wParam is TRUE return the text size otherwise return
2012 * the whole item size
2013 */
2014 if (fTextRect)
2015 {
2016 /* Windows does not send TVN_GETDISPINFO here. */
2017
2018 lpRect->top = wineItem->rect.top;
2019 lpRect->bottom = wineItem->rect.bottom;
2020
2021 lpRect->left = wineItem->textOffset;
2022 lpRect->right = wineItem->textOffset + wineItem->textWidth;
2023 }
2024 else
2025 {
2026 *lpRect = wineItem->rect;
2027 }
2028
2029 TRACE("%s [L:%ld R:%ld T:%ld B:%ld]\n", fTextRect ? "text" : "item",
2030 lpRect->left, lpRect->right, lpRect->top, lpRect->bottom);
2031
2032 return TRUE;
2033 }
2034
2035 static inline LRESULT
2036 TREEVIEW_GetVisibleCount(TREEVIEW_INFO *infoPtr)
2037 {
2038 /* Suprise! This does not take integral height into account. */
2039 return infoPtr->clientHeight / infoPtr->uItemHeight;
2040 }
2041
2042
2043 static LRESULT
2044 TREEVIEW_GetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2045 {
2046 TREEVIEW_ITEM *wineItem;
2047
2048 wineItem = tvItem->hItem;
2049 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2050 return FALSE;
2051
2052 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2053
2054 if (tvItem->mask & TVIF_CHILDREN)
2055 {
2056 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2057 FIXME("I_CHILDRENCALLBACK not supported\n");
2058 tvItem->cChildren = wineItem->cChildren;
2059 }
2060
2061 if (tvItem->mask & TVIF_HANDLE)
2062 tvItem->hItem = wineItem;
2063
2064 if (tvItem->mask & TVIF_IMAGE)
2065 tvItem->iImage = wineItem->iImage;
2066
2067 if (tvItem->mask & TVIF_INTEGRAL)
2068 tvItem->iIntegral = wineItem->iIntegral;
2069
2070 /* undocumented: windows ignores TVIF_PARAM and
2071 * * always sets lParam
2072 */
2073 tvItem->lParam = wineItem->lParam;
2074
2075 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2076 tvItem->iSelectedImage = wineItem->iSelectedImage;
2077
2078 if (tvItem->mask & TVIF_STATE)
2079 /* Careful here - Windows ignores the stateMask when you get the state
2080 That contradicts the documentation, but makes more common sense, masking
2081 retrieval in this way seems overkill */
2082 tvItem->state = wineItem->state;
2083
2084 if (tvItem->mask & TVIF_TEXT)
2085 {
2086 if (isW)
2087 {
2088 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2089 {
2090 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2091 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2092 }
2093 else
2094 {
2095 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2096 }
2097 }
2098 else
2099 {
2100 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2101 {
2102 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2103 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2104 }
2105 else
2106 {
2107 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2108 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2109 }
2110 }
2111 }
2112 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2113 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2114
2115 return TRUE;
2116 }
2117
2118 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2119 * which is wrong. */
2120 static LRESULT
2121 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2122 {
2123 TREEVIEW_ITEM *wineItem;
2124 TREEVIEW_ITEM originalItem;
2125
2126 wineItem = tvItem->hItem;
2127
2128 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2129 tvItem->mask);
2130
2131 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2132 return FALSE;
2133
2134 /* store the orignal item values */
2135 originalItem = *wineItem;
2136
2137 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2138 return FALSE;
2139
2140 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2141 if ((tvItem->mask & TVIF_TEXT
2142 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2143 && ISVISIBLE(wineItem))
2144 {
2145 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2146 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2147 }
2148
2149 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2150 {
2151 /* The refresh updates everything, but we can't wait until then. */
2152 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2153
2154 /* if any of the item's values changed and it's not a callback, redraw the item */
2155 if (item_changed(&originalItem, wineItem, tvItem))
2156 {
2157 if (tvItem->mask & TVIF_INTEGRAL)
2158 {
2159 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2160 TREEVIEW_UpdateScrollBars(infoPtr);
2161
2162 TREEVIEW_Invalidate(infoPtr, NULL);
2163 }
2164 else
2165 {
2166 TREEVIEW_UpdateScrollBars(infoPtr);
2167 TREEVIEW_Invalidate(infoPtr, wineItem);
2168 }
2169 }
2170 }
2171
2172 return TRUE;
2173 }
2174
2175 static LRESULT
2176 TREEVIEW_GetItemState(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2177 {
2178 TRACE("\n");
2179
2180 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2181 return 0;
2182
2183 return (wineItem->state & mask);
2184 }
2185
2186 static LRESULT
2187 TREEVIEW_GetNextItem(TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2188 {
2189 TREEVIEW_ITEM *retval;
2190
2191 retval = 0;
2192
2193 /* handle all the global data here */
2194 switch (which)
2195 {
2196 case TVGN_CHILD: /* Special case: child of 0 is root */
2197 if (wineItem)
2198 break;
2199 /* fall through */
2200 case TVGN_ROOT:
2201 retval = infoPtr->root->firstChild;
2202 break;
2203
2204 case TVGN_CARET:
2205 retval = infoPtr->selectedItem;
2206 break;
2207
2208 case TVGN_FIRSTVISIBLE:
2209 retval = infoPtr->firstVisible;
2210 break;
2211
2212 case TVGN_DROPHILITE:
2213 retval = infoPtr->dropItem;
2214 break;
2215
2216 case TVGN_LASTVISIBLE:
2217 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2218 break;
2219 }
2220
2221 if (retval)
2222 {
2223 TRACE("flags:%x, returns %p\n", which, retval);
2224 return (LRESULT)retval;
2225 }
2226
2227 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2228
2229 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2230 return FALSE;
2231
2232 switch (which)
2233 {
2234 case TVGN_NEXT:
2235 retval = wineItem->nextSibling;
2236 break;
2237 case TVGN_PREVIOUS:
2238 retval = wineItem->prevSibling;
2239 break;
2240 case TVGN_PARENT:
2241 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2242 break;
2243 case TVGN_CHILD:
2244 retval = wineItem->firstChild;
2245 break;
2246 case TVGN_NEXTVISIBLE:
2247 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2248 break;
2249 case TVGN_PREVIOUSVISIBLE:
2250 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2251 break;
2252 default:
2253 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2254 break;
2255 }
2256
2257 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2258 return (LRESULT)retval;
2259 }
2260
2261
2262 static LRESULT
2263 TREEVIEW_GetCount(TREEVIEW_INFO *infoPtr)
2264 {
2265 TRACE(" %d\n", infoPtr->uNumItems);
2266 return (LRESULT)infoPtr->uNumItems;
2267 }
2268
2269 static VOID
2270 TREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2271 {
2272 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2273 {
2274 static const unsigned int state_table[] = { 0, 2, 1 };
2275
2276 unsigned int state;
2277
2278 state = STATEIMAGEINDEX(item->state);
2279 TRACE("state:%x\n", state);
2280 item->state &= ~TVIS_STATEIMAGEMASK;
2281
2282 if (state < 3)
2283 state = state_table[state];
2284
2285 item->state |= INDEXTOSTATEIMAGEMASK(state);
2286
2287 TRACE("state:%x\n", state);
2288 TREEVIEW_Invalidate(infoPtr, item);
2289 }
2290 }
2291
2292
2293 /* Painting *************************************************************/
2294
2295 /* Draw the lines and expand button for an item. Also draws one section
2296 * of the line from item's parent to item's parent's next sibling. */
2297 static void
2298 TREEVIEW_DrawItemLines(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2299 {
2300 LONG centerx, centery;
2301 BOOL lar = ((infoPtr->dwStyle
2302 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2303 > TVS_LINESATROOT);
2304 HBRUSH hbr, hbrOld;
2305
2306 if (!lar && item->iLevel == 0)
2307 return;
2308
2309 hbr = CreateSolidBrush(infoPtr->clrBk);
2310 hbrOld = SelectObject(hdc, hbr);
2311
2312 centerx = (item->linesOffset + item->stateOffset) / 2;
2313 centery = (item->rect.top + item->rect.bottom) / 2;
2314
2315 if (infoPtr->dwStyle & TVS_HASLINES)
2316 {
2317 HPEN hOldPen, hNewPen;
2318 HTREEITEM parent;
2319
2320 /*
2321 * Get a dotted grey pen
2322 */
2323 hNewPen = CreatePen(PS_ALTERNATE, 0, infoPtr->clrLine);
2324 hOldPen = SelectObject(hdc, hNewPen);
2325
2326 MoveToEx(hdc, item->stateOffset, centery, NULL);
2327 LineTo(hdc, centerx - 1, centery);
2328
2329 if (item->prevSibling || item->parent != infoPtr->root)
2330 {
2331 MoveToEx(hdc, centerx, item->rect.top, NULL);
2332 LineTo(hdc, centerx, centery);
2333 }
2334
2335 if (item->nextSibling)
2336 {
2337 MoveToEx(hdc, centerx, centery, NULL);
2338 LineTo(hdc, centerx, item->rect.bottom + 1);
2339 }
2340
2341 /* Draw the line from our parent to its next sibling. */
2342 parent = item->parent;
2343 while (parent != infoPtr->root)
2344 {
2345 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2346
2347 if (parent->nextSibling
2348 /* skip top-levels unless TVS_LINESATROOT */
2349 && parent->stateOffset > parent->linesOffset)
2350 {
2351 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2352 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2353 }
2354
2355 parent = parent->parent;
2356 }
2357
2358 SelectObject(hdc, hOldPen);
2359 DeleteObject(hNewPen);
2360 }
2361
2362 /*
2363 * Display the (+/-) signs
2364 */
2365
2366 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2367 {
2368 if (item->cChildren)
2369 {
2370 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2371 if (theme)
2372 {
2373 RECT glyphRect = item->rect;
2374 glyphRect.left = item->linesOffset;
2375 glyphRect.right = item->stateOffset;
2376 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2377 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2378 &glyphRect, NULL);
2379 }
2380 else
2381 {
2382 LONG height = item->rect.bottom - item->rect.top;
2383 LONG width = item->stateOffset - item->linesOffset;
2384 LONG rectsize = min(height, width) / 4;
2385 /* plussize = ceil(rectsize * 3/4) */
2386 LONG plussize = (rectsize + 1) * 3 / 4;
2387
2388 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2389 HPEN hOldPen = SelectObject(hdc, hNewPen);
2390
2391 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2392 centerx + rectsize + 2, centery + rectsize + 2);
2393
2394 SelectObject(hdc, hOldPen);
2395 DeleteObject(hNewPen);
2396
2397 if (height < 18 || width < 18)
2398 {
2399 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2400 LineTo(hdc, centerx + plussize, centery);
2401
2402 if (!(item->state & TVIS_EXPANDED))
2403 {
2404 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2405 LineTo(hdc, centerx, centery + plussize);
2406 }
2407 }
2408 else
2409 {
2410 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2411 centerx + plussize, centery + 2);
2412
2413 if (!(item->state & TVIS_EXPANDED))
2414 {
2415 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2416 centerx + 2, centery + plussize);
2417 SetPixel(hdc, centerx - 1, centery, infoPtr->clrBk);
2418 SetPixel(hdc, centerx + 1, centery, infoPtr->clrBk);
2419 }
2420 }
2421 }
2422 }
2423 }
2424 SelectObject(hdc, hbrOld);
2425 DeleteObject(hbr);
2426 }
2427
2428 static void
2429 TREEVIEW_DrawItem(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2430 {
2431 INT cditem;
2432 HFONT hOldFont;
2433 COLORREF oldTextColor, oldTextBkColor;
2434 int centery;
2435 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2436 NMTVCUSTOMDRAW nmcdhdr;
2437
2438 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2439
2440 /* - If item is drop target or it is selected and window is in focus -
2441 * use blue background (COLOR_HIGHLIGHT).
2442 * - If item is selected, window is not in focus, but it has style
2443 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2444 * - Otherwise - use background color
2445 */
2446 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2447 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2448 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2449 {
2450 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2451 {
2452 nmcdhdr.clrTextBk = GetSysColor(COLOR_HIGHLIGHT);
2453 nmcdhdr.clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
2454 }
2455 else
2456 {
2457 nmcdhdr.clrTextBk = GetSysColor(COLOR_BTNFACE);
2458 if (infoPtr->clrText == -1)
2459 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2460 else
2461 nmcdhdr.clrText = infoPtr->clrText;
2462 }
2463 }
2464 else
2465 {
2466 nmcdhdr.clrTextBk = infoPtr->clrBk;
2467 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2468 nmcdhdr.clrText = comctl32_color.clrHighlight;
2469 else if (infoPtr->clrText == -1)
2470 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2471 else
2472 nmcdhdr.clrText = infoPtr->clrText;
2473 }
2474
2475 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2476
2477 /* The custom draw handler can query the text rectangle,
2478 * so get ready. */
2479 /* should already be known, set to 0 when changed */
2480 if (!wineItem->textWidth)
2481 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2482
2483 cditem = 0;
2484
2485 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2486 {
2487 cditem = TREEVIEW_SendCustomDrawItemNotify
2488 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2489 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2490
2491 if (cditem & CDRF_SKIPDEFAULT)
2492 {
2493 SelectObject(hdc, hOldFont);
2494 return;
2495 }
2496 }
2497
2498 if (cditem & CDRF_NEWFONT)
2499 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2500
2501 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2502
2503 /* Set colors. Custom draw handler can change these so we do this after it. */
2504 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2505 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2506
2507 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2508
2509 /*
2510 * Display the images associated with this item
2511 */
2512 {
2513 INT imageIndex;
2514
2515 /* State images are displayed to the left of the Normal image
2516 * image number is in state; zero should be `display no image'.
2517 */
2518 imageIndex = STATEIMAGEINDEX(wineItem->state);
2519
2520 if (infoPtr->himlState && imageIndex)
2521 {
2522 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2523 wineItem->stateOffset,
2524 centery - infoPtr->stateImageHeight / 2,
2525 ILD_NORMAL);
2526 }
2527
2528 /* Now, draw the normal image; can be either selected or
2529 * non-selected image.
2530 */
2531
2532 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2533 {
2534 /* The item is currently selected */
2535 imageIndex = wineItem->iSelectedImage;
2536 }
2537 else
2538 {
2539 /* The item is not selected */
2540 imageIndex = wineItem->iImage;
2541 }
2542
2543 if (infoPtr->himlNormal)
2544 {
2545 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2546
2547 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2548 wineItem->imageOffset,
2549 centery - infoPtr->normalImageHeight / 2,
2550 ILD_NORMAL | ovlIdx);
2551 }
2552 }
2553
2554
2555 /*
2556 * Display the text associated with this item
2557 */
2558
2559 /* Don't paint item's text if it's being edited */
2560 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2561 {
2562 if (wineItem->pszText)
2563 {
2564 RECT rcText;
2565
2566 rcText.top = wineItem->rect.top;
2567 rcText.bottom = wineItem->rect.bottom;
2568 rcText.left = wineItem->textOffset;
2569 rcText.right = rcText.left + wineItem->textWidth + 4;
2570
2571 TRACE("drawing text %s at (%ld,%ld)-(%ld,%ld)\n",
2572 debugstr_w(wineItem->pszText),
2573 rcText.left, rcText.top, rcText.right, rcText.bottom);
2574
2575 /* Draw it */
2576 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2577 ETO_CLIPPED | ETO_OPAQUE,
2578 &rcText,
2579 wineItem->pszText,
2580 lstrlenW(wineItem->pszText),
2581 NULL);
2582
2583 /* Draw the box around the selected item */
2584 if ((wineItem == infoPtr->selectedItem) && inFocus)
2585 {
2586 DrawFocusRect(hdc,&rcText);
2587 }
2588
2589 }
2590 }
2591
2592 /* Draw insertion mark if necessary */
2593
2594 if (infoPtr->insertMarkItem)
2595 TRACE("item:%d,mark:%p\n",
2596 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2597 infoPtr->insertMarkItem);
2598
2599 if (wineItem == infoPtr->insertMarkItem)
2600 {
2601 HPEN hNewPen, hOldPen;
2602 int offset;
2603 int left, right;
2604
2605 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2606 hOldPen = SelectObject(hdc, hNewPen);
2607
2608 if (infoPtr->insertBeforeorAfter)
2609 offset = wineItem->rect.bottom - 1;
2610 else
2611 offset = wineItem->rect.top + 1;
2612
2613 left = wineItem->textOffset - 2;
2614 right = wineItem->textOffset + wineItem->textWidth + 2;
2615
2616 MoveToEx(hdc, left, offset - 3, NULL);
2617 LineTo(hdc, left, offset + 4);
2618
2619 MoveToEx(hdc, left, offset, NULL);
2620 LineTo(hdc, right + 1, offset);
2621
2622 MoveToEx(hdc, right, offset + 3, NULL);
2623 LineTo(hdc, right, offset - 4);
2624
2625 SelectObject(hdc, hOldPen);
2626 DeleteObject(hNewPen);
2627 }
2628
2629 if (cditem & CDRF_NOTIFYPOSTPAINT)
2630 {
2631 cditem = TREEVIEW_SendCustomDrawItemNotify
2632 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2633 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2634 }
2635
2636 /* Restore the hdc state */
2637 SetTextColor(hdc, oldTextColor);
2638 SetBkColor(hdc, oldTextBkColor);
2639 SelectObject(hdc, hOldFont);
2640 }
2641
2642 /* Computes treeHeight and treeWidth and updates the scroll bars.
2643 */
2644 static void
2645 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2646 {
2647 TREEVIEW_ITEM *wineItem;
2648 HWND hwnd = infoPtr->hwnd;
2649 BOOL vert = FALSE;
2650 BOOL horz = FALSE;
2651 SCROLLINFO si;
2652 LONG scrollX = infoPtr->scrollX;
2653
2654 infoPtr->treeWidth = 0;
2655 infoPtr->treeHeight = 0;
2656
2657 /* We iterate through all visible items in order to get the tree height
2658 * and width */
2659 wineItem = infoPtr->root->firstChild;
2660
2661 while (wineItem != NULL)
2662 {
2663 if (ISVISIBLE(wineItem))
2664 {
2665 /* actually we draw text at textOffset + 2 */
2666 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2667 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2668
2669 /* This is scroll-adjusted, but we fix this below. */
2670 infoPtr->treeHeight = wineItem->rect.bottom;
2671 }
2672
2673 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2674 }
2675
2676 /* Fix the scroll adjusted treeHeight and treeWidth. */
2677 if (infoPtr->root->firstChild)
2678 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2679
2680 infoPtr->treeWidth += infoPtr->scrollX;
2681
2682 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2683
2684 /* Adding one scroll bar may take up enough space that it forces us
2685 * to add the other as well. */
2686 if (infoPtr->treeHeight > infoPtr->clientHeight)
2687 {
2688 vert = TRUE;
2689
2690 if (infoPtr->treeWidth
2691 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2692 horz = TRUE;
2693 }
2694 else if (infoPtr->treeWidth > infoPtr->clientWidth)
2695 horz = TRUE;
2696
2697 if (!vert && horz && infoPtr->treeHeight
2698 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2699 vert = TRUE;
2700
2701 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2702
2703 si.cbSize = sizeof(SCROLLINFO);
2704 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2705 si.nMin = 0;
2706
2707 if (vert)
2708 {
2709 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2710 if ( si.nPage && NULL != infoPtr->firstVisible)
2711 {
2712 si.nPos = infoPtr->firstVisible->visibleOrder;
2713 si.nMax = infoPtr->maxVisibleOrder - 1;
2714
2715 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2716
2717 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2718 ShowScrollBar(hwnd, SB_VERT, TRUE);
2719 infoPtr->uInternalStatus |= TV_VSCROLL;
2720 }
2721 else
2722 {
2723 if (infoPtr->uInternalStatus & TV_VSCROLL)
2724 ShowScrollBar(hwnd, SB_VERT, FALSE);
2725 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2726 }
2727 }
2728 else
2729 {
2730 if (infoPtr->uInternalStatus & TV_VSCROLL)
2731 ShowScrollBar(hwnd, SB_VERT, FALSE);
2732 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2733 }
2734
2735 if (horz)
2736 {
2737 si.nPage = infoPtr->clientWidth;
2738 si.nPos = infoPtr->scrollX;
2739 si.nMax = infoPtr->treeWidth - 1;
2740
2741 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2742 {
2743 si.nPos = si.nMax - max( si.nPage-1, 0 );
2744 scrollX = si.nPos;
2745 }
2746
2747 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2748 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2749 infoPtr->uInternalStatus |= TV_HSCROLL;
2750
2751 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2752 }
2753 else
2754 {
2755 if (infoPtr->uInternalStatus & TV_HSCROLL)
2756 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2757 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2758
2759 scrollX = 0;
2760 }
2761
2762 if (infoPtr->scrollX != scrollX)
2763 {
2764 TREEVIEW_HScroll(infoPtr,
2765 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2766 }
2767
2768 if (!horz)
2769 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2770 }
2771
2772 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2773 static LRESULT
2774 TREEVIEW_EraseBackground(TREEVIEW_INFO *infoPtr, HDC hDC)
2775 {
2776 HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
2777 RECT rect;
2778
2779 GetClientRect(infoPtr->hwnd, &rect);
2780 FillRect(hDC, &rect, hBrush);
2781 DeleteObject(hBrush);
2782
2783 return 1;
2784 }
2785
2786 static void
2787 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, RECT *rc)
2788 {
2789 HWND hwnd = infoPtr->hwnd;
2790 RECT rect = *rc;
2791 TREEVIEW_ITEM *wineItem;
2792
2793 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2794 {
2795 TRACE("empty window\n");
2796 return;
2797 }
2798
2799 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2800 hdc, rect);
2801
2802 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2803 {
2804 ReleaseDC(hwnd, hdc);
2805 return;
2806 }
2807
2808 for (wineItem = infoPtr->root->firstChild;
2809 wineItem != NULL;
2810 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2811 {
2812 if (ISVISIBLE(wineItem))
2813 {
2814 /* Avoid unneeded calculations */
2815 if (wineItem->rect.top > rect.bottom)
2816 break;
2817 if (wineItem->rect.bottom < rect.top)
2818 continue;
2819
2820 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2821 }
2822 }
2823
2824 TREEVIEW_UpdateScrollBars(infoPtr);
2825
2826 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2827 infoPtr->cdmode =
2828 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2829 }
2830
2831 static void
2832 TREEVIEW_Invalidate(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2833 {
2834 if (item != NULL)
2835 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2836 else
2837 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2838 }
2839
2840 static LRESULT
2841 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2842 {
2843 HDC hdc;
2844 PAINTSTRUCT ps;
2845 RECT rc;
2846
2847 TRACE("\n");
2848
2849 if (wParam)
2850 {
2851 hdc = (HDC)wParam;
2852 if (!GetUpdateRect(infoPtr->hwnd, &rc, TRUE))
2853 {
2854 HBITMAP hbitmap;
2855 BITMAP bitmap;
2856 hbitmap = GetCurrentObject(hdc, OBJ_BITMAP);
2857 if (!hbitmap) return 0;
2858 GetObjectW(hbitmap, sizeof(BITMAP), &bitmap);
2859 rc.left = 0; rc.top = 0;
2860 rc.right = bitmap.bmWidth;
2861 rc.bottom = bitmap.bmHeight;
2862 TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
2863 }
2864 }
2865 else
2866 {
2867 hdc = BeginPaint(infoPtr->hwnd, &ps);
2868 rc = ps.rcPaint;
2869 }
2870
2871 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2872 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2873
2874 if (!wParam)
2875 EndPaint(infoPtr->hwnd, &ps);
2876
2877 return 0;
2878 }
2879
2880
2881 /* Sorting **************************************************************/
2882
2883 /***************************************************************************
2884 * Forward the DPA local callback to the treeview owner callback
2885 */
2886 static INT WINAPI
2887 TREEVIEW_CallBackCompare(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second, LPTVSORTCB pCallBackSort)
2888 {
2889 /* Forward the call to the client-defined callback */
2890 return pCallBackSort->lpfnCompare(first->lParam,
2891 second->lParam,
2892 pCallBackSort->lParam);
2893 }
2894
2895 /***************************************************************************
2896 * Treeview native sort routine: sort on item text.
2897 */
2898 static INT WINAPI
2899 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2900 TREEVIEW_INFO *infoPtr)
2901 {
2902 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2903 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2904
2905 if(first->pszText && second->pszText)
2906 return lstrcmpiW(first->pszText, second->pszText);
2907 else if(first->pszText)
2908 return -1;
2909 else if(second->pszText)
2910 return 1;
2911 else
2912 return 0;
2913 }
2914
2915 /* Returns the number of physical children belonging to item. */
2916 static INT
2917 TREEVIEW_CountChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2918 {
2919 INT cChildren = 0;
2920 HTREEITEM hti;
2921
2922 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2923 cChildren++;
2924
2925 return cChildren;
2926 }
2927
2928 /* Returns a DPA containing a pointer to each physical child of item in
2929 * sibling order. If item has no children, an empty DPA is returned. */
2930 static HDPA
2931 TREEVIEW_BuildChildDPA(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2932 {
2933 HTREEITEM child = item->firstChild;
2934
2935 HDPA list = DPA_Create(8);
2936 if (list == 0) return NULL;
2937
2938 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2939 {
2940 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2941 {
2942 DPA_Destroy(list);
2943 return NULL;
2944 }
2945 }
2946
2947 return list;
2948 }
2949
2950 /***************************************************************************
2951 * Setup the treeview structure with regards of the sort method
2952 * and sort the children of the TV item specified in lParam
2953 * fRecurse: currently unused. Should be zero.
2954 * parent: if pSort!=NULL, should equal pSort->hParent.
2955 * otherwise, item which child items are to be sorted.
2956 * pSort: sort method info. if NULL, sort on item text.
2957 * if non-NULL, sort on item's lParam content, and let the
2958 * application decide what that means. See also TVM_SORTCHILDRENCB.
2959 */
2960
2961 static LRESULT
2962 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, BOOL fRecurse, HTREEITEM parent,
2963 LPTVSORTCB pSort)
2964 {
2965 INT cChildren;
2966 PFNDPACOMPARE pfnCompare;
2967 LPARAM lpCompare;
2968
2969 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2970 if (parent == TVI_ROOT || parent == NULL)
2971 parent = infoPtr->root;
2972
2973 /* Check for a valid handle to the parent item */
2974 if (!TREEVIEW_ValidItem(infoPtr, parent))
2975 {
2976 ERR("invalid item hParent=%p\n", parent);
2977 return FALSE;
2978 }
2979
2980 if (pSort)
2981 {
2982 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2983 lpCompare = (LPARAM)pSort;
2984 }
2985 else
2986 {
2987 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
2988 lpCompare = (LPARAM)infoPtr;
2989 }
2990
2991 cChildren = TREEVIEW_CountChildren(infoPtr, parent);
2992
2993 /* Make sure there is something to sort */
2994 if (cChildren > 1)
2995 {
2996 /* TREEVIEW_ITEM rechaining */
2997 INT count = 0;
2998 HTREEITEM item = 0;
2999 HTREEITEM nextItem = 0;
3000 HTREEITEM prevItem = 0;
3001
3002 HDPA sortList = TREEVIEW_BuildChildDPA(infoPtr, parent);
3003
3004 if (sortList == NULL)
3005 return FALSE;
3006
3007 /* let DPA sort the list */
3008 DPA_Sort(sortList, pfnCompare, lpCompare);
3009
3010 /* The order of DPA entries has been changed, so fixup the
3011 * nextSibling and prevSibling pointers. */
3012
3013 item = (HTREEITEM)DPA_GetPtr(sortList, count++);
3014 while ((nextItem = (HTREEITEM)DPA_GetPtr(sortList, count++)) != NULL)
3015 {
3016 /* link the two current item toghether */
3017 item->nextSibling = nextItem;
3018 nextItem->prevSibling = item;
3019
3020 if (prevItem == NULL)
3021 {
3022 /* this is the first item, update the parent */
3023 parent->firstChild = item;
3024 item->prevSibling = NULL;
3025 }
3026 else
3027 {
3028 /* fix the back chaining */
3029 item->prevSibling = prevItem;
3030 }
3031
3032 /* get ready for the next one */
3033 prevItem = item;
3034 item = nextItem;
3035 }
3036
3037 /* the last item is pointed to by item and never has a sibling */
3038 item->nextSibling = NULL;
3039 parent->lastChild = item;
3040
3041 DPA_Destroy(sortList);
3042
3043 TREEVIEW_VerifyTree(infoPtr);
3044
3045 if (parent->state & TVIS_EXPANDED)
3046 {
3047 int visOrder = infoPtr->firstVisible->visibleOrder;
3048
3049 if (parent == infoPtr->root)
3050 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3051 else
3052 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3053
3054 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3055 {
3056 TREEVIEW_ITEM *item;
3057
3058 for (item = infoPtr->root->firstChild; item != NULL;
3059 item = TREEVIEW_GetNextListItem(infoPtr, item))
3060 {
3061 if (item->visibleOrder == visOrder)
3062 break;
3063 }
3064
3065 if (!item) item = parent->firstChild;
3066 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3067 }
3068
3069 TREEVIEW_Invalidate(infoPtr, NULL);
3070 }
3071
3072 return TRUE;
3073 }
3074 return FALSE;
3075 }
3076
3077
3078 /***************************************************************************
3079 * Setup the treeview structure with regards of the sort method
3080 * and sort the children of the TV item specified in lParam
3081 */
3082 static LRESULT
3083 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPTVSORTCB pSort)
3084 {
3085 return TREEVIEW_Sort(infoPtr, wParam, pSort->hParent, pSort);
3086 }
3087
3088
3089 /***************************************************************************
3090 * Sort the children of the TV item specified in lParam.
3091 */
3092 static LRESULT
3093 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3094 {
3095 return TREEVIEW_Sort(infoPtr, (BOOL)wParam, (HTREEITEM)lParam, NULL);
3096 }
3097
3098
3099 /* Expansion/Collapse ***************************************************/
3100
3101 static BOOL
3102 TREEVIEW_SendExpanding(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3103 UINT action)
3104 {
3105 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3106 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3107 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3108 0, wineItem);
3109 }
3110
3111 static VOID
3112 TREEVIEW_SendExpanded(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3113 UINT action)
3114 {
3115 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3116 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3117 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3118 0, wineItem);
3119 }
3120
3121
3122 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3123 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3124 static BOOL
3125 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3126 BOOL bRemoveChildren, BOOL bUser)
3127 {
3128 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3129 BOOL bSetSelection, bSetFirstVisible;
3130 RECT scrollRect;
3131 LONG scrollDist = 0;
3132 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3133
3134 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3135
3136 if (!(wineItem->state & TVIS_EXPANDED))
3137 return FALSE;
3138
3139 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3140 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3141
3142 if (wineItem->firstChild == NULL)
3143 return FALSE;
3144
3145 wineItem->state &= ~TVIS_EXPANDED;
3146
3147 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3148 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3149
3150 bSetSelection = (infoPtr->selectedItem != NULL
3151 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3152
3153 bSetFirstVisible = (infoPtr->firstVisible != NULL
3154 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3155
3156 tmpItem = wineItem;
3157 while (tmpItem)
3158 {
3159 if (tmpItem->nextSibling)
3160 {
3161 nextItem = tmpItem->nextSibling;
3162 break;
3163 }
3164 tmpItem = tmpItem->parent;
3165 }
3166
3167 if (nextItem)
3168 scrollDist = nextItem->rect.top;
3169
3170 if (bRemoveChildren)
3171 {
3172 INT old_cChildren = wineItem->cChildren;
3173 TRACE("TVE_COLLAPSERESET\n");
3174 wineItem->state &= ~TVIS_EXPANDEDONCE;
3175 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3176 wineItem->cChildren = old_cChildren;
3177 }
3178
3179 if (wineItem->firstChild)
3180 {
3181 TREEVIEW_ITEM *item, *sibling;
3182
3183 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3184
3185 for (item = wineItem->firstChild; item != sibling;
3186 item = TREEVIEW_GetNextListItem(infoPtr, item))
3187 {
3188 item->visibleOrder = -1;
3189 }
3190 }
3191
3192 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3193
3194 if (nextItem)
3195 scrollDist = -(scrollDist - nextItem->rect.top);
3196
3197 if (bSetSelection)
3198 {
3199 /* Don't call DoSelectItem, it sends notifications. */
3200 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3201 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3202 wineItem->state |= TVIS_SELECTED;
3203 infoPtr->selectedItem = wineItem;
3204 }
3205
3206 TREEVIEW_UpdateScrollBars(infoPtr);
3207
3208 scrollRect.left = 0;
3209 scrollRect.right = infoPtr->clientWidth;
3210 scrollRect.bottom = infoPtr->clientHeight;
3211
3212 if (nextItem)
3213 {
3214 scrollRect.top = nextItem->rect.top;
3215
3216 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3217 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3218 TREEVIEW_Invalidate(infoPtr, wineItem);
3219 } else {
3220 scrollRect.top = wineItem->rect.top;
3221 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3222 }
3223
3224 TREEVIEW_SetFirstVisible(infoPtr,
3225 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3226 TRUE);
3227
3228 return TRUE;
3229 }
3230
3231 static BOOL
3232 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3233 BOOL bExpandPartial, BOOL bUser)
3234 {
3235 LONG scrollDist;
3236 LONG orgNextTop = 0;
3237 RECT scrollRect;
3238 TREEVIEW_ITEM *nextItem, *tmpItem;
3239
3240 TRACE("\n");
3241
3242 if (wineItem->state & TVIS_EXPANDED)
3243 return TRUE;
3244
3245 tmpItem = wineItem; nextItem = NULL;
3246 while (tmpItem)
3247 {
3248 if (tmpItem->nextSibling)
3249 {
3250 nextItem = tmpItem->nextSibling;
3251 break;
3252 }
3253 tmpItem = tmpItem->parent;
3254 }
3255
3256 if (nextItem)
3257 orgNextTop = nextItem->rect.top;
3258
3259 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3260
3261 if (bUser || ((wineItem->cChildren != 0) &&
3262 !(wineItem->state & TVIS_EXPANDEDONCE)))
3263 {
3264 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3265 {
3266 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3267 return FALSE;
3268 }
3269
3270 if (!wineItem->firstChild)
3271 return FALSE;
3272
3273 wineItem->state |= TVIS_EXPANDED;
3274 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3275 wineItem->state |= TVIS_EXPANDEDONCE;
3276 }
3277 else
3278 {
3279 if (!wineItem->firstChild)
3280 return FALSE;
3281
3282 /* this item has already been expanded */
3283 wineItem->state |= TVIS_EXPANDED;
3284 }
3285
3286 if (bExpandPartial)
3287 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3288
3289 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3290 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3291 TREEVIEW_UpdateScrollBars(infoPtr);
3292
3293 scrollRect.left = 0;
3294 scrollRect.bottom = infoPtr->treeHeight;
3295 scrollRect.right = infoPtr->clientWidth;
3296 if (nextItem)
3297 {
3298 scrollDist = nextItem->rect.top - orgNextTop;
3299 scrollRect.top = orgNextTop;
3300
3301 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3302 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3303 TREEVIEW_Invalidate (infoPtr, wineItem);
3304 } else {
3305 scrollRect.top = wineItem->rect.top;
3306 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3307 }
3308
3309 /* Scroll up so that as many children as possible are visible.
3310 * This fails when expanding causes an HScroll bar to appear, but we
3311 * don't know that yet, so the last item is obscured. */
3312 if (wineItem->firstChild != NULL)
3313 {
3314 int nChildren = wineItem->lastChild->visibleOrder
3315 - wineItem->firstChild->visibleOrder + 1;
3316
3317 int visible_pos = wineItem->visibleOrder
3318 - infoPtr->firstVisible->visibleOrder;
3319
3320 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3321
3322 if (visible_pos > 0 && nChildren > rows_below)
3323 {
3324 int scroll = nChildren - rows_below;
3325
3326 if (scroll > visible_pos)
3327 scroll = visible_pos;
3328
3329 if (scroll > 0)
3330 {
3331 TREEVIEW_ITEM *newFirstVisible
3332 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3333 scroll);
3334
3335
3336 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3337 }
3338 }
3339 }
3340
3341 return TRUE;
3342 }
3343
3344 static BOOL
3345 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3346 {
3347 TRACE("\n");
3348
3349 if (wineItem->state & TVIS_EXPANDED)
3350 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3351 else
3352 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3353 }
3354
3355 static VOID
3356 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3357 {
3358 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3359
3360 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3361 {
3362 if (TREEVIEW_HasChildren(infoPtr, item))
3363 TREEVIEW_ExpandAll(infoPtr, item);
3364 }
3365 }
3366
3367 /* Note:If the specified item is the child of a collapsed parent item,
3368 the parent's list of child items is (recursively) expanded to reveal the
3369 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3370 know if it also applies here.
3371 */
3372
3373 static LRESULT
3374 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3375 {
3376 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3377 return 0;
3378
3379 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3380 TREEVIEW_ItemName(wineItem), flag,
3381 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3382
3383 switch (flag & TVE_TOGGLE)
3384 {
3385 case TVE_COLLAPSE:
3386 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3387 FALSE);
3388
3389 case TVE_EXPAND:
3390 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3391 FALSE);
3392
3393 case TVE_TOGGLE:
3394 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3395
3396 default:
3397 return 0;
3398 }
3399
3400 #if 0
3401 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3402 #endif
3403 }
3404
3405 /* Hit-Testing **********************************************************/
3406
3407 static TREEVIEW_ITEM *
3408 TREEVIEW_HitTestPoint(TREEVIEW_INFO *infoPtr, POINT pt)
3409 {
3410 TREEVIEW_ITEM *wineItem;
3411 LONG row;
3412
3413 if (!infoPtr->firstVisible)
3414 return NULL;
3415
3416 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3417
3418 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3419 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3420 {
3421 if (row >= wineItem->visibleOrder
3422 && row < wineItem->visibleOrder + wineItem->iIntegral)
3423 break;
3424 }
3425
3426 return wineItem;
3427 }
3428
3429 static LRESULT
3430 TREEVIEW_HitTest(TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3431 {
3432 TREEVIEW_ITEM *wineItem;
3433 RECT rect;
3434 UINT status;
3435 LONG x, y;
3436
3437 lpht->hItem = 0;
3438 GetClientRect(infoPtr->hwnd, &rect);
3439 status = 0;
3440 x = lpht->pt.x;
3441 y = lpht->pt.y;
3442
3443 if (x < rect.left)
3444 {
3445 status |= TVHT_TOLEFT;
3446 }
3447 else if (x > rect.right)
3448 {
3449 status |= TVHT_TORIGHT;
3450 }
3451
3452 if (y < rect.top)
3453 {
3454 status |= TVHT_ABOVE;
3455 }
3456 else if (y > rect.bottom)
3457 {
3458 status |= TVHT_BELOW;
3459 }
3460
3461 if (status)
3462 {
3463 lpht->flags = status;
3464 return (LRESULT)(HTREEITEM)NULL;
3465 }
3466
3467 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3468 if (!wineItem)
3469 {
3470 lpht->flags = TVHT_NOWHERE;
3471 return (LRESULT)(HTREEITEM)NULL;
3472 }
3473
3474 if (x >= wineItem->textOffset + wineItem->textWidth)
3475 {
3476 lpht->flags = TVHT_ONITEMRIGHT;
3477 }
3478 else if (x >= wineItem->textOffset)
3479 {
3480 lpht->flags = TVHT_ONITEMLABEL;
3481 }
3482 else if (x >= wineItem->imageOffset)
3483 {
3484 lpht->flags = TVHT_ONITEMICON;
3485 }
3486 else if (x >= wineItem->stateOffset)
3487 {
3488 lpht->flags = TVHT_ONITEMSTATEICON;
3489 }
3490 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3491 {
3492 lpht->flags = TVHT_ONITEMBUTTON;
3493 }
3494 else
3495 {
3496 lpht->flags = TVHT_ONITEMINDENT;
3497 }
3498
3499 lpht->hItem = wineItem;
3500 TRACE("(%ld,%ld):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3501
3502 return (LRESULT)wineItem;
3503 }
3504
3505 /* Item Label Editing ***************************************************/
3506
3507 static LRESULT
3508 TREEVIEW_GetEditControl(TREEVIEW_INFO *infoPtr)
3509 {
3510 return (LRESULT)infoPtr->hwndEdit;
3511 }
3512
3513 static LRESULT CALLBACK
3514 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3515 {
3516 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3517 BOOL bCancel = FALSE;
3518 LRESULT rc;
3519
3520 switch (uMsg)
3521 {
3522 case WM_PAINT:
3523 TRACE("WM_PAINT start\n");
3524 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3525 lParam);
3526 TRACE("WM_PAINT done\n");
3527 return rc;
3528
3529 case WM_KILLFOCUS:
3530 if (infoPtr->bIgnoreEditKillFocus)
3531 return TRUE;
3532 break;
3533
3534 case WM_GETDLGCODE:
3535 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3536
3537 case WM_KEYDOWN:
3538 if (wParam == (WPARAM)VK_ESCAPE)
3539 {
3540 bCancel = TRUE;
3541 break;
3542 }
3543 else if (wParam == (WPARAM)VK_RETURN)
3544 {
3545 break;
3546 }
3547
3548 /* fall through */
3549 default:
3550 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3551 }
3552
3553 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3554 /* eg. Using a messagebox */
3555
3556 infoPtr->bIgnoreEditKillFocus = TRUE;
3557 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3558 infoPtr->bIgnoreEditKillFocus = FALSE;
3559
3560 return 0;
3561 }
3562
3563
3564 /* should handle edit control messages here */
3565
3566 static LRESULT
3567 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3568 {
3569 TRACE("%x %ld\n", wParam, lParam);
3570
3571 switch (HIWORD(wParam))
3572 {
3573 case EN_UPDATE:
3574 {
3575 /*
3576 * Adjust the edit window size
3577 */
3578 WCHAR buffer[1024];
3579 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3580 HDC hdc = GetDC(infoPtr->hwndEdit);
3581 SIZE sz;
3582 int len;
3583 HFONT hFont, hOldFont = 0;
3584
3585 infoPtr->bLabelChanged = TRUE;
3586
3587 len = GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer));
3588
3589 /* Select font to get the right dimension of the string */
3590 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3591
3592 if (hFont != 0)
3593 {
3594 hOldFont = SelectObject(hdc, hFont);
3595 }
3596
3597 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3598 {
3599 TEXTMETRICW textMetric;
3600
3601 /* Add Extra spacing for the next character */
3602 GetTextMetricsW(hdc, &textMetric);
3603 sz.cx += (textMetric.tmMaxCharWidth * 2);
3604
3605 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3606 sz.cx = min(sz.cx,
3607 infoPtr->clientWidth - editItem->textOffset + 2);
3608
3609 SetWindowPos(infoPtr->hwndEdit,
3610 HWND_TOP,
3611 0,
3612 0,
3613 sz.cx,
3614 editItem->rect.bottom - editItem->rect.top + 3,
3615 SWP_NOMOVE | SWP_DRAWFRAME);
3616 }
3617
3618 if (hFont != 0)
3619 {
3620 SelectObject(hdc, hOldFont);
3621 }
3622
3623 ReleaseDC(infoPtr->hwnd, hdc);
3624 break;
3625 }
3626
3627 default:
3628 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3629 }
3630
3631 return 0;
3632 }
3633
3634 static HWND
3635 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3636 {
3637 HWND hwnd = infoPtr->hwnd;
3638 HWND hwndEdit;
3639 SIZE sz;
3640 TREEVIEW_ITEM *editItem = hItem;
3641 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3642 HDC hdc;
3643 HFONT hOldFont=0;
3644 TEXTMETRICW textMetric;
3645 static const WCHAR EditW[] = {'E','d','i','t',0};
3646
3647 TRACE("%p %p\n", hwnd, hItem);
3648 if (!TREEVIEW_ValidItem(infoPtr, editItem))
3649 return NULL;
3650
3651 if (infoPtr->hwndEdit)
3652 return infoPtr->hwndEdit;
3653
3654 infoPtr->bLabelChanged = FALSE;
3655
3656 /* Make sure that edit item is selected */
3657 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
3658 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3659
3660 TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
3661
3662 hdc = GetDC(hwnd);
3663 /* Select the font to get appropriate metric dimensions */
3664 if (infoPtr->hFont != 0)
3665 {
3666 hOldFont = SelectObject(hdc, infoPtr->hFont);
3667 }
3668
3669 /* Get string length in pixels */
3670 GetTextExtentPoint32W(hdc, editItem->pszText, strlenW(editItem->pszText),
3671 &sz);
3672
3673 /* Add Extra spacing for the next character */
3674 GetTextMetricsW(hdc, &textMetric);
3675 sz.cx += (textMetric.tmMaxCharWidth * 2);
3676
3677 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3678 sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
3679
3680 if (infoPtr->hFont != 0)
3681 {
3682 SelectObject(hdc, hOldFont);
3683 }
3684
3685 ReleaseDC(hwnd, hdc);
3686 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3687 EditW,
3688 0,
3689 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3690 WS_CLIPSIBLINGS | ES_WANTRETURN |
3691 ES_LEFT, editItem->textOffset - 2,
3692 editItem->rect.top - 1, sz.cx + 3,
3693 editItem->rect.bottom -
3694 editItem->rect.top + 3, hwnd, 0, hinst, 0);
3695 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3696
3697 infoPtr->hwndEdit = hwndEdit;
3698
3699 /* Get a 2D border. */
3700 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3701 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3702 SetWindowLongW(hwndEdit, GWL_STYLE,
3703 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3704
3705 SendMessageW(hwndEdit, WM_SETFONT,
3706 (WPARAM)TREEVIEW_FontForItem(infoPtr, editItem), FALSE);
3707
3708 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3709 (DWORD_PTR)
3710 TREEVIEW_Edit_SubclassProc);
3711
3712 if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
3713 {
3714 DestroyWindow(hwndEdit);
3715 infoPtr->hwndEdit = 0;
3716 return NULL;
3717 }
3718
3719 infoPtr->selectedItem = hItem;
3720 SetWindowTextW(hwndEdit, editItem->pszText);
3721 SetFocus(hwndEdit);
3722 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3723 ShowWindow(hwndEdit, SW_SHOW);
3724
3725 return hwndEdit;
3726 }
3727
3728
3729 static LRESULT
3730 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3731 {
3732 HWND hwnd = infoPtr->hwnd;
3733 TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
3734 NMTVDISPINFOW tvdi;
3735 BOOL bCommit;
3736 WCHAR tmpText[1024] = { '\0' };
3737 WCHAR *newText = tmpText;
3738 int iLength = 0;
3739
3740 if (!infoPtr->hwndEdit)
3741 return FALSE;
3742
3743 tvdi.hdr.hwndFrom = hwnd;
3744 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3745 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3746 tvdi.item.mask = 0;
3747 tvdi.item.hItem = editedItem;
3748 tvdi.item.state = editedItem->state;
3749 tvdi.item.lParam = editedItem->lParam;
3750
3751 if (!bCancel)
3752 {
3753 if (!infoPtr->bNtfUnicode)
3754 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3755 else
3756 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3757
3758 if (iLength >= 1023)
3759 {
3760 ERR("Insufficient space to retrieve new item label\n");
3761 }
3762
3763 tvdi.item.mask = TVIF_TEXT;
3764 tvdi.item.pszText = tmpText;
3765 tvdi.item.cchTextMax = iLength + 1;
3766 }
3767 else
3768 {
3769 tvdi.item.pszText = NULL;
3770 tvdi.item.cchTextMax = 0;
3771 }
3772
3773 bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
3774 (WPARAM)tvdi.hdr.idFrom, (LPARAM)&tvdi);
3775
3776 if (!bCancel && bCommit) /* Apply the changes */
3777 {
3778 if (!infoPtr->bNtfUnicode)
3779 {
3780 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3781 newText = Alloc(len * sizeof(WCHAR));
3782 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3783 iLength = len - 1;
3784 }
3785
3786 if (strcmpW(newText, editedItem->pszText) != 0)
3787 {
3788 if (NULL == ReAlloc(editedItem->pszText, iLength + 1))
3789 {
3790 ERR("OutOfMemory, cannot allocate space for label\n");
3791 DestroyWindow(infoPtr->hwndEdit);
3792 infoPtr->hwndEdit = 0;
3793 return FALSE;
3794 }
3795 else
3796 {
3797 editedItem->cchTextMax = iLength + 1;
3798 strcpyW(editedItem->pszText, newText);
3799 }
3800 }
3801 if(newText != tmpText) Free(newText);
3802 }
3803
3804 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3805 DestroyWindow(infoPtr->hwndEdit);
3806 infoPtr->hwndEdit = 0;
3807 return TRUE;
3808 }
3809
3810 static LRESULT
3811 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3812 {
3813 if (wParam != TV_EDIT_TIMER)
3814 {
3815 ERR("got unknown timer\n");
3816 return 1;
3817 }
3818
3819 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3820 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3821
3822 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3823
3824 return 0;
3825 }
3826
3827
3828 /* Mouse Tracking/Drag **************************************************/
3829
3830 /***************************************************************************
3831 * This is quite unusual piece of code, but that's how it's implemented in
3832 * Windows.
3833 */
3834 static LRESULT
3835 TREEVIEW_TrackMouse(TREEVIEW_INFO *infoPtr, POINT pt)
3836 {
3837 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
3838 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
3839 RECT r;
3840 MSG msg;
3841
3842 r.top = pt.y - cyDrag;
3843 r.left = pt.x - cxDrag;
3844 r.bottom = pt.y + cyDrag;
3845 r.right = pt.x + cxDrag;
3846
3847 SetCapture(infoPtr->hwnd);
3848
3849 while (1)
3850 {
3851 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
3852 {
3853 if (msg.message == WM_MOUSEMOVE)
3854 {
3855 pt.x = (short)LOWORD(msg.lParam);
3856 pt.y = (short)HIWORD(msg.lParam);
3857 if (PtInRect(&r, pt))
3858 continue;
3859 else
3860 {
3861 ReleaseCapture();
3862 return 1;
3863 }
3864 }
3865 else if (msg.message >= WM_LBUTTONDOWN &&
3866 msg.message <= WM_RBUTTONDBLCLK)
3867 {
3868 if (msg.message == WM_RBUTTONUP)
3869 TREEVIEW_RButtonUp(infoPtr, &pt);
3870 break;
3871 }
3872
3873 DispatchMessageW(&msg);
3874 }
3875
3876 if (GetCapture() != infoPtr->hwnd)
3877 return 0;
3878 }
3879
3880 ReleaseCapture();
3881 return 0;
3882 }
3883
3884
3885 static LRESULT
3886 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3887 {
3888 TREEVIEW_ITEM *wineItem;
3889 TVHITTESTINFO hit;
3890
3891 TRACE("\n");
3892 SetFocus(infoPtr->hwnd);
3893
3894 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
3895 {
3896 /* If there is pending 'edit label' event - kill it now */
3897 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3898 }
3899
3900 hit.pt.x = (short)LOWORD(lParam);
3901 hit.pt.y = (short)HIWORD(lParam);
3902
3903 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
3904 if (!wineItem)
3905 return 0;
3906 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
3907
3908 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
3909 { /* FIXME! */
3910 switch (hit.flags)
3911 {
3912 case TVHT_ONITEMRIGHT:
3913 /* FIXME: we should not have sent NM_DBLCLK in this case. */
3914 break;
3915
3916 case TVHT_ONITEMINDENT:
3917 if (!(infoPtr->dwStyle & TVS_HASLINES))
3918 {
3919 break;
3920 }
3921 else
3922 {
3923 int level = hit.pt.x / infoPtr->uIndent;
3924 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
3925
3926 while (wineItem->iLevel > level)
3927 {
3928 wineItem = wineItem->parent;
3929 }
3930
3931 /* fall through */
3932 }
3933
3934 case TVHT_ONITEMLABEL:
3935 case TVHT_ONITEMICON:
3936 case TVHT_ONITEMBUTTON:
3937 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3938 break;
3939
3940 case TVHT_ONITEMSTATEICON:
3941 if (infoPtr->dwStyle & TVS_CHECKBOXES)
3942 TREEVIEW_ToggleItemState(infoPtr, wineItem);
3943 else
3944 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3945 break;
3946 }
3947 }
3948 return TRUE;
3949 }
3950
3951
3952 static LRESULT
3953 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3954 {
3955 HWND hwnd = infoPtr->hwnd;
3956 TVHITTESTINFO ht;
3957 BOOL bTrack, bDoLabelEdit;
3958 HTREEITEM tempItem;
3959
3960 /* If Edit control is active - kill it and return.
3961 * The best way to do it is to set focus to itself.
3962 * Edit control subclassed procedure will automatically call
3963 * EndEditLabelNow.
3964 */
3965 if (infoPtr->hwndEdit)
3966 {
3967 SetFocus(hwnd);
3968 return 0;
3969 }
3970
3971 ht.pt.x = (short)LOWORD(lParam);
3972 ht.pt.y = (short)HIWORD(lParam);
3973
3974 TREEVIEW_HitTest(infoPtr, &ht);
3975 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
3976
3977 /* update focusedItem and redraw both items */
3978 if(ht.hItem && (ht.flags & TVHT_ONITEM))
3979 {
3980 infoPtr->focusedItem = ht.hItem;
3981 InvalidateRect(hwnd, &(((HTREEITEM)(ht.hItem))->rect), TRUE);
3982
3983 if(infoPtr->selectedItem)
3984 InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
3985 }
3986
3987 bTrack = (ht.flags & TVHT_ONITEM)
3988 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
3989
3990 /*
3991 * If the style allows editing and the node is already selected
3992 * and the click occurred on the item label...
3993 */
3994 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
3995 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
3996
3997 /* Send NM_CLICK right away */
3998 if (!bTrack)
3999 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4000 goto setfocus;
4001
4002 if (ht.flags & TVHT_ONITEMBUTTON)
4003 {
4004 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4005 goto setfocus;
4006 }
4007 else if (bTrack)
4008 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4009 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4010 {
4011 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4012 infoPtr->dropItem = ht.hItem;
4013
4014 /* clean up focusedItem as we dragged and won't select this item */
4015 if(infoPtr->focusedItem)
4016 {
4017 /* refresh the item that was focused */
4018 tempItem = infoPtr->focusedItem;
4019 infoPtr->focusedItem = 0;
4020 InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
4021
4022 /* refresh the selected item to return the filled background */
4023 InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
4024 }
4025
4026 return 0;
4027 }
4028 }
4029
4030 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4031 goto setfocus;
4032
4033 if (bDoLabelEdit)
4034 {
4035 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4036 KillTimer(hwnd, TV_EDIT_TIMER);
4037
4038 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4039 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4040 }
4041 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4042 {
4043 /*
4044 * if we are TVS_SINGLEEXPAND then we want this single click to
4045 * do a bunch of things.
4046 */
4047 if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
4048 (infoPtr->hwndEdit == 0))
4049 {
4050 TREEVIEW_ITEM *SelItem;
4051
4052 /*
4053 * Send the notification
4054 */
4055 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, ht.hItem, 0);
4056
4057 /*
4058 * Close the previous selection all the way to the root
4059 * as long as the new selection is not a child
4060 */
4061 if((infoPtr->selectedItem)
4062 && (infoPtr->selectedItem != ht.hItem))
4063 {
4064 BOOL closeit = TRUE;
4065 SelItem = ht.hItem;
4066
4067 /* determine if the hitItem is a child of the currently selected item */
4068 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4069 {
4070 closeit = (SelItem != infoPtr->selectedItem);
4071 SelItem = SelItem->parent;
4072 }
4073
4074 if(closeit)
4075 {
4076 if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
4077 SelItem = infoPtr->selectedItem;
4078
4079 while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4080 {
4081 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
4082 SelItem = SelItem->parent;
4083 }
4084 }
4085 }
4086
4087 /*
4088 * Expand the current item
4089 */
4090 TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
4091 }
4092
4093 /* Select the current item */
4094 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4095 }
4096 else if (ht.flags & TVHT_ONITEMSTATEICON)
4097 {
4098 /* TVS_CHECKBOXES requires us to toggle the current state */
4099 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4100 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4101 }
4102
4103 setfocus:
4104 SetFocus(hwnd);
4105 return 0;
4106 }
4107
4108
4109 static LRESULT
4110 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4111 {
4112 TVHITTESTINFO ht;
4113
4114 if (infoPtr->hwndEdit)
4115 {
4116 SetFocus(infoPtr->hwnd);
4117 return 0;
4118 }
4119
4120 ht.pt.x = (short)LOWORD(lParam);
4121 ht.pt.y = (short)HIWORD(lParam);
4122
4123 TREEVIEW_HitTest(infoPtr, &ht);
4124
4125 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4126 {
4127 if (ht.hItem)
4128 {
4129 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4130 infoPtr->dropItem = ht.hItem;
4131 }
4132 }
4133 else
4134 {
4135 SetFocus(infoPtr->hwnd);
4136 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4137 }
4138
4139 return 0;
4140 }
4141
4142 static LRESULT
4143 TREEVIEW_RButtonUp(TREEVIEW_INFO *infoPtr, LPPOINT pPt)
4144 {
4145 return 0;
4146 }
4147
4148
4149 static LRESULT
4150 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4151 {
4152 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4153 INT cx, cy;
4154 HDC hdc, htopdc;
4155 HWND hwtop;
4156 HBITMAP hbmp, hOldbmp;
4157 SIZE size;
4158 RECT rc;
4159 HFONT hOldFont;
4160
4161 TRACE("\n");
4162
4163 if (!(infoPtr->himlNormal))
4164 return 0;
4165
4166 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4167 return 0;
4168
4169 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4170
4171 hwtop = GetDesktopWindow();
4172 htopdc = GetDC(hwtop);
4173 hdc = CreateCompatibleDC(htopdc);
4174
4175 hOldFont = SelectObject(hdc, infoPtr->hFont);
4176 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4177 &size);
4178 TRACE("%ld %ld %s %d\n", size.cx, size.cy, debugstr_w(dragItem->pszText),
4179 strlenW(dragItem->pszText));
4180 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4181 hOldbmp = SelectObject(hdc, hbmp);
4182
4183 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4184 size.cx += cx;
4185 if (cy > size.cy)
4186 size.cy = cy;
4187
4188 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4189 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4190 ILD_NORMAL);
4191
4192 /*
4193 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4194 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4195 */
4196
4197 /* draw item text */
4198
4199 SetRect(&rc, cx, 0, size.cx, size.cy);
4200 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4201 DT_LEFT);
4202 SelectObject(hdc, hOldFont);
4203 SelectObject(hdc, hOldbmp);
4204
4205 ImageList_Add(infoPtr->dragList, hbmp, 0);
4206
4207 DeleteDC(hdc);
4208 DeleteObject(hbmp);
4209 ReleaseDC(hwtop, htopdc);
4210
4211 return (LRESULT)infoPtr->dragList;
4212 }
4213
4214 /* Selection ************************************************************/
4215
4216 static LRESULT
4217 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4218 INT cause)
4219 {
4220 TREEVIEW_ITEM *prevSelect;
4221 RECT rcFocused;
4222
4223 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4224
4225 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4226 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4227 newSelect ? newSelect->state : 0);
4228
4229 /* reset and redraw focusedItem if focusedItem was set so we don't */
4230 /* have to worry about the previously focused item when we set a new one */
4231 if(infoPtr->focusedItem)
4232 {
4233 rcFocused = (infoPtr->focusedItem)->rect;
4234 infoPtr->focusedItem = 0;
4235 InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
4236 }
4237
4238 switch (action)
4239 {
4240 case TVGN_CARET:
4241 prevSelect = infoPtr->selectedItem;
4242
4243 if (prevSelect == newSelect) {
4244 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4245 break;
4246 }
4247
4248 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4249 TVN_SELCHANGINGW,
4250 cause,
4251 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4252 prevSelect,
4253 newSelect))
4254 return FALSE;
4255
4256 if (prevSelect)
4257 prevSelect->state &= ~TVIS_SELECTED;
4258 if (newSelect)
4259 newSelect->state |= TVIS_SELECTED;
4260
4261 infoPtr->selectedItem = newSelect;
4262
4263 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4264
4265 if (prevSelect)
4266 TREEVIEW_Invalidate(infoPtr, prevSelect);
4267 if (newSelect)
4268 TREEVIEW_Invalidate(infoPtr, newSelect);
4269
4270 TREEVIEW_SendTreeviewNotify(infoPtr,
4271 TVN_SELCHANGEDW,
4272 cause,
4273 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4274 prevSelect,
4275 newSelect);
4276 break;
4277
4278 case TVGN_DROPHILITE:
4279 prevSelect = infoPtr->dropItem;
4280
4281 if (prevSelect)
4282 prevSelect->state &= ~TVIS_DROPHILITED;
4283
4284 infoPtr->dropItem = newSelect;
4285
4286 if (newSelect)
4287 newSelect->state |= TVIS_DROPHILITED;
4288
4289 TREEVIEW_Invalidate(infoPtr, prevSelect);
4290 TREEVIEW_Invalidate(infoPtr, newSelect);
4291 break;
4292
4293 case TVGN_FIRSTVISIBLE:
4294 if (newSelect != NULL)
4295 {
4296 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4297 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4298 TREEVIEW_Invalidate(infoPtr, NULL);
4299 }
4300 break;
4301 }
4302
4303 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4304 return TRUE;
4305 }
4306
4307 /* FIXME: handle NM_KILLFOCUS etc */
4308 static LRESULT
4309 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4310 {
4311 if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
4312 return FALSE;
4313
4314 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4315
4316 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4317 return FALSE;
4318
4319 return TRUE;
4320 }
4321
4322 /*************************************************************************
4323 * TREEVIEW_ProcessLetterKeys
4324 *
4325 * Processes keyboard messages generated by pressing the letter keys
4326 * on the keyboard.
4327 * What this does is perform a case insensitive search from the
4328 * current position with the following quirks:
4329 * - If two chars or more are pressed in quick succession we search
4330 * for the corresponding string (e.g. 'abc').
4331 * - If there is a delay we wipe away the current search string and
4332 * restart with just that char.
4333 * - If the user keeps pressing the same character, whether slowly or
4334 * fast, so that the search string is entirely composed of this
4335 * character ('aaaaa' for instance), then we search for first item
4336 * that starting with that character.
4337 * - If the user types the above character in quick succession, then
4338 * we must also search for the corresponding string ('aaaaa'), and
4339 * go to that string if there is a match.
4340 *
4341 * RETURNS
4342 *
4343 * Zero.
4344 *
4345 * BUGS
4346 *
4347 * - The current implementation has a list of characters it will
4348 * accept and it ignores averything else. In particular it will
4349 * ignore accentuated characters which seems to match what
4350 * Windows does. But I'm not sure it makes sense to follow
4351 * Windows there.
4352 * - We don't sound a beep when the search fails.
4353 * - The search should start from the focused item, not from the selected
4354 * item. One reason for this is to allow for multiple selections in trees.
4355 * But currently infoPtr->focusedItem does not seem very usable.
4356 *
4357 * SEE ALSO
4358 *
4359 * TREEVIEW_ProcessLetterKeys
4360 */
4361 static INT TREEVIEW_ProcessLetterKeys(
4362 HWND hwnd, /* handle to the window */
4363 WPARAM charCode, /* the character code, the actual character */
4364 LPARAM keyData /* key data */
4365 )
4366 {
4367 TREEVIEW_INFO *infoPtr;
4368 HTREEITEM nItem;
4369 HTREEITEM endidx,idx;
4370 TVITEMEXW item;
4371 WCHAR buffer[MAX_PATH];
4372 DWORD timestamp,elapsed;
4373
4374 /* simple parameter checking */
4375 if (!hwnd || !charCode || !keyData)
4376 return 0;
4377
4378 infoPtr=(TREEVIEW_INFO*)GetWindowLongPtrW(hwnd, 0);
4379 if (!infoPtr)
4380 return 0;
4381
4382 /* only allow the valid WM_CHARs through */
4383 if (!isalnum(charCode) &&
4384 charCode != '.' && charCode != '`' && charCode != '!' &&
4385 charCode != '@' && charCode != '#' && charCode != '$' &&
4386 charCode != '%' && charCode != '^' && charCode != '&' &&
4387 charCode != '*' && charCode != '(' && charCode != ')' &&
4388 charCode != '-' && charCode != '_' && charCode != '+' &&
4389 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4390 charCode != '}' && charCode != '[' && charCode != '{' &&
4391 charCode != '/' && charCode != '?' && charCode != '>' &&
4392 charCode != '<' && charCode != ',' && charCode != '~')
4393 return 0;
4394
4395 /* compute how much time elapsed since last keypress */
4396 timestamp = GetTickCount();
4397 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4398 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4399 } else {
4400 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4401 }
4402
4403 /* update the search parameters */
4404 infoPtr->lastKeyPressTimestamp=timestamp;
4405 if (elapsed < KEY_DELAY) {
4406 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4407 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4408 }
4409 if (infoPtr->charCode != charCode) {
4410 infoPtr->charCode=charCode=0;
4411 }
4412 } else {
4413 infoPtr->charCode=charCode;
4414 infoPtr->szSearchParam[0]=charCode;
4415 infoPtr->nSearchParamLength=1;
4416 /* Redundant with the 1 char string */
4417 charCode=0;
4418 }
4419
4420 /* and search from the current position */
4421 nItem=NULL;
4422 if (infoPtr->selectedItem != NULL) {
4423 endidx=infoPtr->selectedItem;
4424 /* if looking for single character match,
4425 * then we must always move forward
4426 */
4427 if (infoPtr->nSearchParamLength == 1)
4428 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4429 else
4430 idx=endidx;
4431 } else {
4432 endidx=NULL;
4433 idx=infoPtr->root->firstChild;
4434 }
4435 do {
4436 /* At the end point, sort out wrapping */
4437 if (idx == NULL) {
4438
4439 /* If endidx is null, stop at the last item (ie top to bottom) */
4440 if (endidx == NULL)
4441 break;
4442
4443 /* Otherwise, start again at the very beginning */
4444 idx=infoPtr->root->firstChild;
4445
4446 /* But if we are stopping on the first child, end now! */
4447 if (idx == endidx) break;
4448 }
4449
4450 /* get item */
4451 ZeroMemory(&item, sizeof(item));
4452 item.mask = TVIF_TEXT;
4453 item.hItem = idx;
4454 item.pszText = buffer;
4455 item.cchTextMax = sizeof(buffer);
4456 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4457
4458 /* check for a match */
4459 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4460 nItem=idx;
4461 break;
4462 } else if ( (charCode != 0) && (nItem == NULL) &&
4463 (nItem != infoPtr->selectedItem) &&
4464 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4465 /* This would work but we must keep looking for a longer match */
4466 nItem=idx;
4467 }
4468 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4469 } while (idx != endidx);
4470
4471 if (nItem != NULL) {
4472 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4473 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4474 }
4475 }
4476
4477 return 0;
4478 }
4479
4480 /* Scrolling ************************************************************/
4481
4482 static LRESULT
4483 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4484 {
4485 int viscount;
4486 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4487 HTREEITEM newFirstVisible = NULL;
4488 int visible_pos = -1;
4489
4490 if (!TREEVIEW_ValidItem(infoPtr, item))
4491 return FALSE;
4492
4493 if (!ISVISIBLE(item))
4494 {
4495 /* Expand parents as necessary. */
4496 HTREEITEM parent;
4497
4498 /* see if we are trying to ensure that root is vislble */
4499 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4500 parent = item->parent;
4501 else
4502 parent = item; /* this item is the topmost item */
4503
4504 while (parent != infoPtr->root)
4505 {
4506 if (!(parent->state & TVIS_EXPANDED))
4507 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4508
4509 parent = parent->parent;
4510 }
4511 }
4512
4513 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4514
4515 TRACE("%p (%s) %ld - %ld viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4516 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4517
4518 if (hasFirstVisible)
4519 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4520
4521 if (visible_pos < 0)
4522 {
4523 /* item is before the start of the list: put it at the top. */
4524 newFirstVisible = item;
4525 }
4526 else if (visible_pos >= viscount
4527 /* Sometimes, before we are displayed, GVC is 0, causing us to
4528 * spuriously scroll up. */
4529 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4530 {
4531 /* item is past the end of the list. */
4532 int scroll = visible_pos - viscount;
4533
4534 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4535 scroll + 1);
4536 }
4537
4538 if (bHScroll)
4539 {
4540 /* Scroll window so item's text is visible as much as possible */
4541 /* Calculation of amount of extra space is taken from EditLabel code */
4542 INT pos, x;
4543 TEXTMETRICW textMetric;
4544 HDC hdc = GetWindowDC(infoPtr->hwnd);
4545
4546 x = item->textWidth;
4547
4548 GetTextMetricsW(hdc, &textMetric);
4549 ReleaseDC(infoPtr->hwnd, hdc);
4550
4551 x += (textMetric.tmMaxCharWidth * 2);
4552 x = max(x, textMetric.tmMaxCharWidth * 3);
4553
4554 if (item->textOffset < 0)
4555 pos = item->textOffset;
4556 else if (item->textOffset + x > infoPtr->clientWidth)
4557 {
4558 if (x > infoPtr->clientWidth)
4559 pos = item->textOffset;
4560 else
4561 pos = item->textOffset + x - infoPtr->clientWidth;
4562 }
4563 else
4564 pos = 0;
4565
4566 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4567 }
4568
4569 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4570 {
4571 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4572
4573 return TRUE;
4574 }
4575
4576 return FALSE;
4577 }
4578
4579 static VOID
4580 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4581 TREEVIEW_ITEM *newFirstVisible,
4582 BOOL bUpdateScrollPos)
4583 {
4584 int gap_size;
4585
4586 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4587
4588 if (newFirstVisible != NULL)
4589 {
4590 /* Prevent an empty gap from appearing at the bottom... */
4591 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4592 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4593
4594 if (gap_size > 0)
4595 {
4596 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4597 -gap_size);
4598
4599 /* ... unless we just don't have enough items. */
4600 if (newFirstVisible == NULL)
4601 newFirstVisible = infoPtr->root->firstChild;
4602 }
4603 }
4604
4605 if (infoPtr->firstVisible != newFirstVisible)
4606 {
4607 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4608 {
4609 infoPtr->firstVisible = newFirstVisible;
4610 TREEVIEW_Invalidate(infoPtr, NULL);
4611 }
4612 else
4613 {
4614 TREEVIEW_ITEM *item;
4615 int scroll = infoPtr->uItemHeight *
4616 (infoPtr->firstVisible->visibleOrder
4617 - newFirstVisible->visibleOrder);
4618
4619 infoPtr->firstVisible = newFirstVisible;
4620
4621 for (item = infoPtr->root->firstChild; item != NULL;
4622 item = TREEVIEW_GetNextListItem(infoPtr, item))
4623 {
4624 item->rect.top += scroll;
4625 item->rect.bottom += scroll;
4626 }
4627
4628 if (bUpdateScrollPos)
4629 SetScrollPos(infoPtr->hwnd, SB_VERT,
4630 newFirstVisible->visibleOrder, TRUE);
4631
4632 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4633 }
4634 }
4635 }
4636
4637 /************************************************************************
4638 * VScroll is always in units of visible items. i.e. we always have a
4639 * visible item aligned to the top of the control. (Unless we have no
4640 * items at all.)
4641 */
4642 static LRESULT
4643 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4644 {
4645 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4646 TREEVIEW_ITEM *newFirstVisible = NULL;
4647
4648 int nScrollCode = LOWORD(wParam);
4649
4650 TRACE("wp %x\n", wParam);
4651
4652 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4653 return 0;
4654
4655 if (infoPtr->hwndEdit)
4656 SetFocus(infoPtr->hwnd);
4657
4658 if (!oldFirstVisible)
4659 {
4660 assert(infoPtr->root->firstChild == NULL);
4661 return 0;
4662 }
4663
4664 switch (nScrollCode)
4665 {
4666 case SB_TOP:
4667 newFirstVisible = infoPtr->root->firstChild;
4668 break;
4669
4670 case SB_BOTTOM:
4671 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4672 break;
4673
4674 case SB_LINEUP:
4675 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4676 break;
4677
4678 case SB_LINEDOWN:
4679 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4680 break;
4681
4682 case SB_PAGEUP:
4683 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4684 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4685 break;
4686
4687 case SB_PAGEDOWN:
4688 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4689 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4690 break;
4691
4692 case SB_THUMBTRACK:
4693 case SB_THUMBPOSITION:
4694 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4695 infoPtr->root->firstChild,
4696 (LONG)(SHORT)HIWORD(wParam));
4697 break;
4698
4699 case SB_ENDSCROLL:
4700 return 0;
4701 }
4702
4703 if (newFirstVisible != NULL)
4704 {
4705 if (newFirstVisible != oldFirstVisible)
4706 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4707 nScrollCode != SB_THUMBTRACK);
4708 else if (nScrollCode == SB_THUMBPOSITION)
4709 SetScrollPos(infoPtr->hwnd, SB_VERT,
4710 newFirstVisible->visibleOrder, TRUE);
4711 }
4712
4713 return 0;
4714 }
4715
4716 static LRESULT
4717 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4718 {
4719 int maxWidth;
4720 int scrollX = infoPtr->scrollX;
4721 int nScrollCode = LOWORD(wParam);
4722
4723 TRACE("wp %x\n", wParam);
4724
4725 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4726 return FALSE;
4727
4728 if (infoPtr->hwndEdit)
4729 SetFocus(infoPtr->hwnd);
4730
4731 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4732 /* shall never occur */
4733 if (maxWidth <= 0)
4734 {
4735 scrollX = 0;
4736 goto scroll;
4737 }
4738
4739 switch (nScrollCode)
4740 {
4741 case SB_LINELEFT:
4742 scrollX -= infoPtr->uItemHeight;
4743 break;
4744 case SB_LINERIGHT:
4745 scrollX += infoPtr->uItemHeight;
4746 break;
4747 case SB_PAGELEFT:
4748 scrollX -= infoPtr->clientWidth;
4749 break;
4750 case SB_PAGERIGHT:
4751 scrollX += infoPtr->clientWidth;
4752 break;
4753
4754 case SB_THUMBTRACK:
4755 case SB_THUMBPOSITION:
4756 scrollX = (int)(SHORT)HIWORD(wParam);
4757 break;
4758
4759 case SB_ENDSCROLL:
4760 return 0;
4761 }
4762
4763 if (scrollX > maxWidth)
4764 scrollX = maxWidth;
4765 else if (scrollX < 0)
4766 scrollX = 0;
4767
4768 scroll:
4769 if (scrollX != infoPtr->scrollX)
4770 {
4771 TREEVIEW_ITEM *item;
4772 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4773
4774 for (item = infoPtr->root->firstChild; item != NULL;
4775 item = TREEVIEW_GetNextListItem(infoPtr, item))
4776 {
4777 item->linesOffset += scroll_pixels;
4778 item->stateOffset += scroll_pixels;
4779 item->imageOffset += scroll_pixels;
4780 item->textOffset += scroll_pixels;
4781 }
4782
4783 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4784 infoPtr->scrollX = scrollX;
4785 UpdateWindow(infoPtr->hwnd);
4786 }
4787
4788 if (nScrollCode != SB_THUMBTRACK)
4789 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4790
4791 return 0;
4792 }
4793
4794 static LRESULT
4795 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4796 {
4797 short gcWheelDelta;
4798 UINT pulScrollLines = 3;
4799
4800 if (infoPtr->firstVisible == NULL)
4801 return TRUE;
4802
4803 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4804
4805 gcWheelDelta = -(short)HIWORD(wParam);
4806 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4807
4808 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4809 {
4810 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4811 int maxDy = infoPtr->maxVisibleOrder;
4812
4813 if (newDy > maxDy)
4814 newDy = maxDy;
4815
4816 if (newDy < 0)
4817 newDy = 0;
4818
4819 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4820 }
4821 return TRUE;
4822 }
4823
4824 /* Create/Destroy *******************************************************/
4825
4826 static LRESULT
4827 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4828 {
4829 static const WCHAR szDisplayW[] = { 'D','I','S','P','L','A','Y','\0' };
4830 RECT rcClient;
4831 TREEVIEW_INFO *infoPtr;
4832 LOGFONTW lf;
4833
4834 TRACE("wnd %p, style %lx\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4835
4836 infoPtr = (TREEVIEW_INFO *)Alloc(sizeof(TREEVIEW_INFO));
4837
4838 if (infoPtr == NULL)
4839 {
4840 ERR("could not allocate info memory!\n");
4841 return 0;
4842 }
4843
4844 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
4845
4846 infoPtr->hwnd = hwnd;
4847 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
4848 infoPtr->Timer = 0;
4849 infoPtr->uNumItems = 0;
4850 infoPtr->cdmode = 0;
4851 infoPtr->uScrollTime = 300; /* milliseconds */
4852 infoPtr->bRedraw = TRUE;
4853
4854 GetClientRect(hwnd, &rcClient);
4855
4856 /* No scroll bars yet. */
4857 infoPtr->clientWidth = rcClient.right;
4858 infoPtr->clientHeight = rcClient.bottom;
4859 infoPtr->uInternalStatus = 0;
4860
4861 infoPtr->treeWidth = 0;
4862 infoPtr->treeHeight = 0;
4863
4864 infoPtr->uIndent = MINIMUM_INDENT;
4865 infoPtr->selectedItem = 0;
4866 infoPtr->focusedItem = 0;
4867 infoPtr->hotItem = 0;
4868 infoPtr->firstVisible = 0;
4869 infoPtr->maxVisibleOrder = 0;
4870 infoPtr->dropItem = 0;
4871 infoPtr->insertMarkItem = 0;
4872 infoPtr->insertBeforeorAfter = 0;
4873 /* dragList */
4874
4875 infoPtr->scrollX = 0;
4876
4877 infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
4878 infoPtr->clrText = -1; /* use system color */
4879 infoPtr->clrLine = RGB(128, 128, 128);
4880 infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
4881
4882 /* hwndToolTip */
4883
4884 infoPtr->hwndEdit = 0;
4885 infoPtr->wpEditOrig = NULL;
4886 infoPtr->bIgnoreEditKillFocus = FALSE;
4887 infoPtr->bLabelChanged = FALSE;
4888
4889 infoPtr->himlNormal = NULL;
4890 infoPtr->himlState = NULL;
4891 infoPtr->normalImageWidth = 0;
4892 infoPtr->normalImageHeight = 0;
4893 infoPtr->stateImageWidth = 0;
4894 infoPtr->stateImageHeight = 0;
4895
4896 infoPtr->items = DPA_Create(16);
4897
4898 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
4899 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
4900 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
4901 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
4902 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
4903
4904 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
4905
4906 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
4907 infoPtr->root->state = TVIS_EXPANDED;
4908 infoPtr->root->iLevel = -1;
4909 infoPtr->root->visibleOrder = -1;
4910
4911 infoPtr->hwndNotify = lpcs->hwndParent;
4912 #if 0
4913 infoPtr->bTransparent = ( GetWindowLongW( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
4914 #endif
4915
4916 infoPtr->hwndToolTip = 0;
4917
4918 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
4919
4920 /* Determine what type of notify should be issued */
4921 /* sets infoPtr->bNtfUnicode */
4922 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
4923
4924 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
4925 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(hwnd);
4926
4927 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4928 {
4929 RECT rc;
4930 HBITMAP hbm, hbmOld;
4931 HDC hdc,hdcScreen;
4932 int nIndex;
4933
4934 infoPtr->himlState =
4935 ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4936
4937 hdcScreen = CreateDCW(szDisplayW, NULL, NULL, NULL);
4938
4939 /* Create a coloured bitmap compatible with the screen depth
4940 because checkboxes are not black&white */
4941 hdc = CreateCompatibleDC(hdcScreen);
4942 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4943 hbmOld = SelectObject(hdc, hbm);
4944
4945 rc.left = 0; rc.top = 0;
4946 rc.right = 48; rc.bottom = 16;
4947 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4948
4949 rc.left = 18; rc.top = 2;
4950 rc.right = 30; rc.bottom = 14;
4951 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4952 DFCS_BUTTONCHECK|DFCS_FLAT);
4953
4954 rc.left = 34; rc.right = 46;
4955 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4956 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4957
4958 SelectObject(hdc, hbmOld);
4959 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4960 GetSysColor(COLOR_WINDOW));
4961 TRACE("checkbox index %d\n", nIndex);
4962
4963 DeleteObject(hbm);
4964 DeleteDC(hdc);
4965 DeleteDC(hdcScreen);
4966
4967 infoPtr->stateImageWidth = 16;
4968 infoPtr->stateImageHeight = 16;
4969 }
4970
4971 /* Make sure actual scrollbar state is consistent with uInternalStatus */
4972 ShowScrollBar(hwnd, SB_VERT, FALSE);
4973 ShowScrollBar(hwnd, SB_HORZ, FALSE);
4974
4975 OpenThemeData (hwnd, themeClass);
4976
4977 return 0;
4978 }
4979
4980
4981 static LRESULT
4982 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
4983 {
4984 TRACE("\n");
4985
4986 TREEVIEW_RemoveTree(infoPtr);
4987
4988 /* tool tip is automatically destroyed: we are its owner */
4989
4990 /* Restore original wndproc */
4991 if (infoPtr->hwndEdit)
4992 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
4993 (DWORD_PTR)infoPtr->wpEditOrig);
4994
4995 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
4996
4997 /* Deassociate treeview from the window before doing anything drastic. */
4998 SetWindowLongPtrW(infoPtr->hwnd, 0, (DWORD_PTR)NULL);
4999
5000
5001 DeleteObject(infoPtr->hDefaultFont);
5002 DeleteObject(infoPtr->hBoldFont);
5003 DeleteObject(infoPtr->hUnderlineFont);
5004 Free(infoPtr);
5005
5006 return 0;
5007 }
5008
5009 /* Miscellaneous Messages ***********************************************/
5010
5011 static LRESULT
5012 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5013 {
5014 static const struct
5015 {
5016 unsigned char code;
5017 }
5018 scroll[] =
5019 {
5020 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5021 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5022 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5023 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5024 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5025 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5026 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5027 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5028 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5029 #undef SCROLL_ENTRY
5030 };
5031
5032 if (key >= VK_PRIOR && key <= VK_DOWN)
5033 {
5034 unsigned char code = scroll[key - VK_PRIOR].code;
5035
5036 (((code & (1 << 7)) == (SB_HORZ << 7))
5037 ? TREEVIEW_HScroll
5038 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5039 }
5040
5041 return 0;
5042 }
5043
5044 /************************************************************************
5045 * TREEVIEW_KeyDown
5046 *
5047 * VK_UP Move selection to the previous non-hidden item.
5048 * VK_DOWN Move selection to the next non-hidden item.
5049 * VK_HOME Move selection to the first item.
5050 * VK_END Move selection to the last item.
5051 * VK_LEFT If expanded then collapse, otherwise move to parent.
5052 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5053 * VK_ADD Expand.
5054 * VK_SUBTRACT Collapse.
5055 * VK_MULTIPLY Expand all.
5056 * VK_PRIOR Move up GetVisibleCount items.
5057 * VK_NEXT Move down GetVisibleCount items.
5058 * VK_BACK Move to parent.
5059 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5060 */
5061 static LRESULT
5062 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5063 {
5064 /* If it is non-NULL and different, it will be selected and visible. */
5065 TREEVIEW_ITEM *newSelection = NULL;
5066
5067 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5068
5069 TRACE("%x\n", wParam);
5070
5071 if (prevItem == NULL)
5072 return FALSE;
5073
5074 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5075 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5076
5077 switch (wParam)
5078 {
5079 case VK_UP:
5080 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5081 if (!newSelection)
5082 newSelection = infoPtr->root->firstChild;
5083 break;
5084
5085 case VK_DOWN:
5086 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5087 break;
5088
5089 case VK_HOME:
5090 newSelection = infoPtr->root->firstChild;
5091 break;
5092
5093 case VK_END:
5094 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5095 break;
5096
5097 case VK_LEFT:
5098 if (prevItem->state & TVIS_EXPANDED)
5099 {
5100 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5101 }
5102 else if (prevItem->parent != infoPtr->root)
5103 {
5104 newSelection = prevItem->parent;
5105 }
5106 break;
5107
5108 case VK_RIGHT:
5109 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5110 {
5111 if (!(prevItem->state & TVIS_EXPANDED))
5112 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5113 else
5114 {
5115 newSelection = prevItem->firstChild;
5116 }
5117 }
5118
5119 break;
5120
5121 case VK_MULTIPLY:
5122 TREEVIEW_ExpandAll(infoPtr, prevItem);
5123 break;
5124
5125 case VK_ADD:
5126 if (!(prevItem->state & TVIS_EXPANDED))
5127 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5128 break;
5129
5130 case VK_SUBTRACT:
5131 if (prevItem->state & TVIS_EXPANDED)
5132 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5133 break;
5134
5135 case VK_PRIOR:
5136 newSelection
5137 = TREEVIEW_GetListItem(infoPtr, prevItem,
5138 -TREEVIEW_GetVisibleCount(infoPtr));
5139 break;
5140
5141 case VK_NEXT:
5142 newSelection
5143 = TREEVIEW_GetListItem(infoPtr, prevItem,
5144 TREEVIEW_GetVisibleCount(infoPtr));
5145 break;
5146
5147 case VK_BACK:
5148 newSelection = prevItem->parent;
5149 if (newSelection == infoPtr->root)
5150 newSelection = NULL;
5151 break;
5152
5153 case VK_SPACE:
5154 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5155 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5156 break;
5157 }
5158
5159 if (newSelection && newSelection != prevItem)
5160 {
5161 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5162 TVC_BYKEYBOARD))
5163 {
5164 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5165 }
5166 }
5167
5168 return FALSE;
5169 }
5170
5171 static LRESULT
5172 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5173 {
5174 if (infoPtr->hotItem)
5175 {
5176 /* remove hot effect from item */
5177 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5178 infoPtr->hotItem = NULL;
5179 }
5180 return 0;
5181 }
5182
5183 static LRESULT
5184 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, WPARAM wParam, LPARAM lParam)
5185 {
5186 POINT pt;
5187 TRACKMOUSEEVENT trackinfo;
5188 TREEVIEW_ITEM * item;
5189
5190 /* fill in the TRACKMOUSEEVENT struct */
5191 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5192 trackinfo.dwFlags = TME_QUERY;
5193 trackinfo.hwndTrack = infoPtr->hwnd;
5194 trackinfo.dwHoverTime = HOVER_DEFAULT;
5195
5196 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5197 _TrackMouseEvent(&trackinfo);
5198
5199 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5200 if(!(trackinfo.dwFlags & TME_LEAVE))
5201 {
5202 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5203
5204 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5205 /* and can properly deactivate the hot item */
5206 _TrackMouseEvent(&trackinfo);
5207 }
5208
5209 pt.x = (INT)LOWORD(lParam);
5210 pt.y = (INT)HIWORD(lParam);
5211
5212 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5213
5214 if (item != infoPtr->hotItem)
5215 {
5216 /* redraw old hot item */
5217 if (infoPtr->hotItem)
5218 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5219 infoPtr->hotItem = item;
5220 /* redraw new hot item */
5221 if (infoPtr->hotItem)
5222 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5223 }
5224
5225 return 0;
5226 }
5227
5228 /* Draw themed border */
5229 static BOOL nc_paint (TREEVIEW_INFO *infoPtr, HRGN region)
5230 {
5231 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5232 HDC dc;
5233 RECT r;
5234 HRGN cliprgn;
5235 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5236 cyEdge = GetSystemMetrics (SM_CYEDGE);
5237
5238 if (!theme) return FALSE;
5239
5240 GetWindowRect(infoPtr->hwnd, &r);
5241
5242 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5243 r.right - cxEdge, r.bottom - cyEdge);
5244 if (region != (HRGN)1)
5245 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5246 OffsetRect(&r, -r.left, -r.top);
5247
5248 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5249 OffsetRect(&r, -r.left, -r.top);
5250
5251 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5252 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5253 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5254 ReleaseDC(infoPtr->hwnd, dc);
5255
5256 /* Call default proc to get the scrollbars etc. painted */
5257 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5258
5259 return TRUE;
5260 }
5261
5262 static LRESULT
5263 TREEVIEW_Notify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5264 {
5265 LPNMHDR lpnmh = (LPNMHDR)lParam;
5266
5267 if (lpnmh->code == PGN_CALCSIZE) {
5268 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5269
5270 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5271 lppgc->iWidth = infoPtr->treeWidth;
5272 TRACE("got PGN_CALCSIZE, returning horz size = %ld, client=%ld\n",
5273 infoPtr->treeWidth, infoPtr->clientWidth);
5274 }
5275 else {
5276 lppgc->iHeight = infoPtr->treeHeight;
5277 TRACE("got PGN_CALCSIZE, returning vert size = %ld, client=%ld\n",
5278 infoPtr->treeHeight, infoPtr->clientHeight);
5279 }
5280 return 0;
5281 }
5282 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5283 }
5284
5285 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
5286 {
5287 INT format;
5288
5289 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
5290
5291 if (nCommand != NF_REQUERY) return 0;
5292
5293 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
5294 TRACE("format=%d\n", format);
5295
5296 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
5297
5298 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
5299
5300 return format;
5301 }
5302
5303 static LRESULT
5304 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5305 {
5306 if (wParam == SIZE_RESTORED)
5307 {
5308 infoPtr->clientWidth = (short)LOWORD(lParam);
5309 infoPtr->clientHeight = (short)HIWORD(lParam);
5310
5311 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5312 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5313 TREEVIEW_UpdateScrollBars(infoPtr);
5314 }
5315 else
5316 {
5317 FIXME("WM_SIZE flag %x %lx not handled\n", wParam, lParam);
5318 }
5319
5320 TREEVIEW_Invalidate(infoPtr, NULL);
5321 return 0;
5322 }
5323
5324 static LRESULT
5325 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5326 {
5327 TRACE("(%x %lx)\n", wParam, lParam);
5328
5329 if (wParam == GWL_STYLE)
5330 {
5331 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5332
5333 /* we have to take special care about tooltips */
5334 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5335 {
5336 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5337 {
5338 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5339 TRACE("\n");
5340 }
5341 else
5342 {
5343 DestroyWindow(infoPtr->hwndToolTip);
5344 infoPtr->hwndToolTip = 0;
5345 }
5346 }
5347
5348 infoPtr->dwStyle = dwNewStyle;
5349 }
5350
5351 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5352 TREEVIEW_UpdateScrollBars(infoPtr);
5353 TREEVIEW_Invalidate(infoPtr, NULL);
5354
5355 return 0;
5356 }
5357
5358 static LRESULT
5359 TREEVIEW_SetCursor(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5360 {
5361 POINT pt;
5362 TREEVIEW_ITEM * item;
5363
5364 GetCursorPos(&pt);
5365 ScreenToClient(infoPtr->hwnd, &pt);
5366
5367 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5368
5369 /* FIXME: send NM_SETCURSOR */
5370
5371 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5372 {
5373 SetCursor(infoPtr->hcurHand);
5374 return 0;
5375 }
5376 else
5377 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5378 }
5379
5380 static LRESULT
5381 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5382 {
5383 TRACE("\n");
5384
5385 if (!infoPtr->selectedItem)
5386 {
5387 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5388 TVC_UNKNOWN);
5389 }
5390
5391 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5392 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5393 return 0;
5394 }
5395
5396 static LRESULT
5397 TREEVIEW_KillFocus(TREEVIEW_INFO *infoPtr)
5398 {
5399 TRACE("\n");
5400
5401 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5402 UpdateWindow(infoPtr->hwnd);
5403 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5404 return 0;
5405 }
5406
5407 /* update theme after a WM_THEMECHANGED message */
5408 static LRESULT theme_changed (TREEVIEW_INFO* infoPtr)
5409 {
5410 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5411 CloseThemeData (theme);
5412 OpenThemeData (infoPtr->hwnd, themeClass);
5413 return 0;
5414 }
5415
5416
5417 static LRESULT WINAPI
5418 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5419 {
5420 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5421
5422 TRACE("hwnd %p msg %04x wp=%08x lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5423
5424 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5425 else
5426 {
5427 if (uMsg == WM_CREATE)
5428 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5429 else
5430 goto def;
5431 }
5432
5433 switch (uMsg)
5434 {
5435 case TVM_CREATEDRAGIMAGE:
5436 return TREEVIEW_CreateDragImage(infoPtr, wParam, lParam);
5437
5438 case TVM_DELETEITEM:
5439 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5440
5441 case TVM_EDITLABELA:
5442 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5443
5444 case TVM_EDITLABELW:
5445 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5446
5447 case TVM_ENDEDITLABELNOW:
5448 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5449
5450 case TVM_ENSUREVISIBLE:
5451 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5452
5453 case TVM_EXPAND:
5454 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5455
5456 case TVM_GETBKCOLOR:
5457 return TREEVIEW_GetBkColor(infoPtr);
5458
5459 case TVM_GETCOUNT:
5460 return TREEVIEW_GetCount(infoPtr);
5461
5462 case TVM_GETEDITCONTROL:
5463 return TREEVIEW_GetEditControl(infoPtr);
5464
5465 case TVM_GETIMAGELIST:
5466 return TREEVIEW_GetImageList(infoPtr, wParam);
5467
5468 case TVM_GETINDENT:
5469 return TREEVIEW_GetIndent(infoPtr);
5470
5471 case TVM_GETINSERTMARKCOLOR:
5472 return TREEVIEW_GetInsertMarkColor(infoPtr);
5473
5474 case TVM_GETISEARCHSTRINGA:
5475 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5476 return 0;
5477
5478 case TVM_GETISEARCHSTRINGW:
5479 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5480 return 0;
5481
5482 case TVM_GETITEMA:
5483 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5484
5485 case TVM_GETITEMW:
5486 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5487
5488 case TVM_GETITEMHEIGHT:
5489 return TREEVIEW_GetItemHeight(infoPtr);
5490
5491 case TVM_GETITEMRECT:
5492 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5493
5494 case TVM_GETITEMSTATE:
5495 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5496
5497 case TVM_GETLINECOLOR:
5498 return TREEVIEW_GetLineColor(infoPtr);
5499
5500 case TVM_GETNEXTITEM:
5501 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5502
5503 case TVM_GETSCROLLTIME:
5504 return TREEVIEW_GetScrollTime(infoPtr);
5505
5506 case TVM_GETTEXTCOLOR:
5507 return TREEVIEW_GetTextColor(infoPtr);
5508
5509 case TVM_GETTOOLTIPS:
5510 return TREEVIEW_GetToolTips(infoPtr);
5511
5512 case TVM_GETUNICODEFORMAT:
5513 return TREEVIEW_GetUnicodeFormat(infoPtr);
5514
5515 case TVM_GETVISIBLECOUNT:
5516 return TREEVIEW_GetVisibleCount(infoPtr);
5517
5518 case TVM_HITTEST:
5519 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5520
5521 case TVM_INSERTITEMA:
5522 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, FALSE);
5523
5524 case TVM_INSERTITEMW:
5525 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, TRUE);
5526
5527 case TVM_SELECTITEM:
5528 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5529
5530 case TVM_SETBKCOLOR:
5531 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5532
5533 case TVM_SETIMAGELIST:
5534 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5535
5536 case TVM_SETINDENT:
5537 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5538
5539 case TVM_SETINSERTMARK:
5540 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5541
5542 case TVM_SETINSERTMARKCOLOR:
5543 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5544
5545 case TVM_SETITEMA:
5546 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5547
5548 case TVM_SETITEMW:
5549 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5550
5551 case TVM_SETLINECOLOR:
5552 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5553
5554 case TVM_SETITEMHEIGHT:
5555 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5556
5557 case TVM_SETSCROLLTIME:
5558 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5559
5560 case TVM_SETTEXTCOLOR:
5561 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5562
5563 case TVM_SETTOOLTIPS:
5564 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5565
5566 case TVM_SETUNICODEFORMAT:
5567 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5568
5569 case TVM_SORTCHILDREN:
5570 return TREEVIEW_SortChildren(infoPtr, wParam, lParam);
5571
5572 case TVM_SORTCHILDRENCB:
5573 return TREEVIEW_SortChildrenCB(infoPtr, wParam, (LPTVSORTCB)lParam);
5574
5575 case WM_CHAR:
5576 return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
5577
5578 case WM_COMMAND:
5579 return TREEVIEW_Command(infoPtr, wParam, lParam);
5580
5581 case WM_DESTROY:
5582 return TREEVIEW_Destroy(infoPtr);
5583
5584 /* WM_ENABLE */
5585
5586 case WM_ERASEBKGND:
5587 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5588
5589 case WM_GETDLGCODE:
5590 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5591
5592 case WM_GETFONT:
5593 return TREEVIEW_GetFont(infoPtr);
5594
5595 case WM_HSCROLL:
5596 return TREEVIEW_HScroll(infoPtr, wParam);
5597
5598 case WM_KEYDOWN:
5599 return TREEVIEW_KeyDown(infoPtr, wParam);
5600
5601 case WM_KILLFOCUS:
5602 return TREEVIEW_KillFocus(infoPtr);
5603
5604 case WM_LBUTTONDBLCLK:
5605 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5606
5607 case WM_LBUTTONDOWN:
5608 return TREEVIEW_LButtonDown(infoPtr, lParam);
5609
5610 /* WM_MBUTTONDOWN */
5611
5612 case WM_MOUSELEAVE:
5613 return TREEVIEW_MouseLeave(infoPtr);
5614
5615 case WM_MOUSEMOVE:
5616 if (infoPtr->dwStyle & TVS_TRACKSELECT)
5617 return TREEVIEW_MouseMove(infoPtr, wParam, lParam);
5618 else
5619 return 0;
5620
5621 case WM_NCPAINT:
5622 if (nc_paint (infoPtr, (HRGN)wParam))
5623 return 0;
5624 goto def;
5625
5626 case WM_NOTIFY:
5627 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5628
5629 case WM_NOTIFYFORMAT:
5630 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5631
5632 case WM_PAINT:
5633 return TREEVIEW_Paint(infoPtr, wParam);
5634
5635 /* WM_PRINTCLIENT */
5636
5637 case WM_RBUTTONDOWN:
5638 return TREEVIEW_RButtonDown(infoPtr, lParam);
5639
5640 case WM_SETCURSOR:
5641 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5642
5643 case WM_SETFOCUS:
5644 return TREEVIEW_SetFocus(infoPtr);
5645
5646 case WM_SETFONT:
5647 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5648
5649 case WM_SETREDRAW:
5650 return TREEVIEW_SetRedraw(infoPtr, wParam, lParam);
5651
5652 case WM_SIZE:
5653 return TREEVIEW_Size(infoPtr, wParam, lParam);
5654
5655 case WM_STYLECHANGED:
5656 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5657
5658 /* WM_SYSCOLORCHANGE */
5659
5660 /* WM_SYSKEYDOWN */
5661
5662 case WM_TIMER:
5663 return TREEVIEW_HandleTimer(infoPtr, wParam);
5664
5665 case WM_THEMECHANGED:
5666 return theme_changed (infoPtr);
5667
5668 case WM_VSCROLL:
5669 return TREEVIEW_VScroll(infoPtr, wParam);
5670
5671 /* WM_WININICHANGE */
5672
5673 case WM_MOUSEWHEEL:
5674 if (wParam & (MK_SHIFT | MK_CONTROL))
5675 goto def;
5676 return TREEVIEW_MouseWheel(infoPtr, wParam);
5677
5678 case WM_DRAWITEM:
5679 TRACE("drawItem\n");
5680 goto def;
5681
5682 default:
5683 /* This mostly catches MFC and Delphi messages. :( */
5684 if ((uMsg >= WM_USER) && (uMsg < WM_APP))
5685 TRACE("Unknown msg %04x wp=%08x lp=%08lx\n", uMsg, wParam, lParam);
5686 def:
5687 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5688 }
5689 }
5690
5691
5692 /* Class Registration ***************************************************/
5693
5694 VOID
5695 TREEVIEW_Register(void)
5696 {
5697 WNDCLASSW wndClass;
5698
5699 TRACE("\n");
5700
5701 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5702 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5703 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5704 wndClass.cbClsExtra = 0;
5705 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5706
5707 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5708 wndClass.hbrBackground = 0;
5709 wndClass.lpszClassName = WC_TREEVIEWW;
5710
5711 RegisterClassW(&wndClass);
5712 }
5713
5714
5715 VOID
5716 TREEVIEW_Unregister(void)
5717 {
5718 UnregisterClassW(WC_TREEVIEWW, NULL);
5719 }
5720
5721
5722 /* Tree Verification ****************************************************/
5723
5724 #ifdef NDEBUG
5725 static inline void
5726 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
5727
5728 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5729 TREEVIEW_ITEM *item)
5730 {
5731 assert(infoPtr != NULL);
5732 assert(item != NULL);
5733
5734 /* both NULL, or both non-null */
5735 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5736
5737 assert(item->firstChild != item);
5738 assert(item->lastChild != item);
5739
5740 if (item->firstChild)
5741 {
5742 assert(item->firstChild->parent == item);
5743 assert(item->firstChild->prevSibling == NULL);
5744 }
5745
5746 if (item->lastChild)
5747 {
5748 assert(item->lastChild->parent == item);
5749 assert(item->lastChild->nextSibling == NULL);
5750 }
5751
5752 assert(item->nextSibling != item);
5753 if (item->nextSibling)
5754 {
5755 assert(item->nextSibling->parent == item->parent);
5756 assert(item->nextSibling->prevSibling == item);
5757 }
5758
5759 assert(item->prevSibling != item);
5760 if (item->prevSibling)
5761 {
5762 assert(item->prevSibling->parent == item->parent);
5763 assert(item->prevSibling->nextSibling == item);
5764 }
5765 }
5766
5767 static inline void
5768 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5769 {
5770 assert(item != NULL);
5771
5772 assert(item->parent != NULL);
5773 assert(item->parent != item);
5774 assert(item->iLevel == item->parent->iLevel + 1);
5775
5776 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5777
5778 TREEVIEW_VerifyItemCommon(infoPtr, item);
5779
5780 TREEVIEW_VerifyChildren(infoPtr, item);
5781 }
5782
5783 static inline void
5784 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5785 {
5786 TREEVIEW_ITEM *child;
5787 assert(item != NULL);
5788
5789 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5790 TREEVIEW_VerifyItem(infoPtr, child);
5791 }
5792
5793 static inline void
5794 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5795 {
5796 TREEVIEW_ITEM *root = infoPtr->root;
5797
5798 assert(root != NULL);
5799 assert(root->iLevel == -1);
5800 assert(root->parent == NULL);
5801 assert(root->prevSibling == NULL);
5802
5803 TREEVIEW_VerifyItemCommon(infoPtr, root);
5804
5805 TREEVIEW_VerifyChildren(infoPtr, root);
5806 }
5807
5808 static void
5809 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5810 {
5811 assert(infoPtr != NULL);
5812
5813 TREEVIEW_VerifyRoot(infoPtr);
5814 }
5815 #endif
GSOC 2012 project to enhance the control panel