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Implement NtAccessCheck.
[wine/gsoc-2012-control.git] / dlls / user / edit.c
blob835dd1dbc2e1ec48a291838c7305aaba88d15d83
1 /*
2 * Edit control
3 *
4 * Copyright David W. Metcalfe, 1994
5 * Copyright William Magro, 1995, 1996
6 * Copyright Frans van Dorsselaer, 1996, 1997
7 *
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * NOTES
24 *
25 * This code was audited for completeness against the documented features
26 * of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun.
27 *
28 * Unless otherwise noted, we believe this code to be complete, as per
29 * the specification mentioned above.
30 * If you discover missing features, or bugs, please note them below.
31 *
32 * TODO:
33 * - EDITBALLOONTIP structure
34 * - EM_GETCUEBANNER/Edit_GetCueBannerText
35 * - EM_HIDEBALLOONTIP/Edit_HideBalloonTip
36 * - EM_SETCUEBANNER/Edit_SetCueBannerText
37 * - EM_SHOWBALLOONTIP/Edit_ShowBalloonTip
38 * - EM_GETIMESTATUS, EM_SETIMESTATUS
39 * - EN_ALIGN_LTR_EC
40 * - EN_ALIGN_RTL_EC
41 * - ES_OEMCONVERT
42 *
43 */
44
45 #include "config.h"
46
47 #include <stdarg.h>
48 #include <string.h>
49 #include <stdlib.h>
50
51 #include "windef.h"
52 #include "winbase.h"
53 #include "winnt.h"
54 #include "wownt32.h"
55 #include "win.h"
56 #include "wine/winbase16.h"
57 #include "wine/winuser16.h"
58 #include "wine/unicode.h"
59 #include "controls.h"
60 #include "user_private.h"
61 #include "wine/debug.h"
62
63 WINE_DEFAULT_DEBUG_CHANNEL(edit);
64 WINE_DECLARE_DEBUG_CHANNEL(combo);
65 WINE_DECLARE_DEBUG_CHANNEL(relay);
66
67 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
68 FIXME: BTW, new specs say 65535 (do you dare ???) */
69 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
70 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
71 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
72 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
73
74 /*
75 * extra flags for EDITSTATE.flags field
76 */
77 #define EF_MODIFIED 0x0001 /* text has been modified */
78 #define EF_FOCUSED 0x0002 /* we have input focus */
79 #define EF_UPDATE 0x0004 /* notify parent of changed state */
80 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
81 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
82 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
83 wrapped line, instead of in front of the next character */
84 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
85
86 typedef enum
87 {
88 END_0 = 0, /* line ends with terminating '\0' character */
89 END_WRAP, /* line is wrapped */
90 END_HARD, /* line ends with a hard return '\r\n' */
91 END_SOFT, /* line ends with a soft return '\r\r\n' */
92 END_RICH /* line ends with a single '\n' */
93 } LINE_END;
94
95 typedef struct tagLINEDEF {
96 INT length; /* bruto length of a line in bytes */
97 INT net_length; /* netto length of a line in visible characters */
98 LINE_END ending;
99 INT width; /* width of the line in pixels */
100 INT index; /* line index into the buffer */
101 struct tagLINEDEF *next;
102 } LINEDEF;
103
104 typedef struct
105 {
106 BOOL is_unicode; /* how the control was created */
107 LPWSTR text; /* the actual contents of the control */
108 UINT buffer_size; /* the size of the buffer in characters */
109 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
110 HFONT font; /* NULL means standard system font */
111 INT x_offset; /* scroll offset for multi lines this is in pixels
112 for single lines it's in characters */
113 INT line_height; /* height of a screen line in pixels */
114 INT char_width; /* average character width in pixels */
115 DWORD style; /* sane version of wnd->dwStyle */
116 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
117 INT undo_insert_count; /* number of characters inserted in sequence */
118 UINT undo_position; /* character index of the insertion and deletion */
119 LPWSTR undo_text; /* deleted text */
120 UINT undo_buffer_size; /* size of the deleted text buffer */
121 INT selection_start; /* == selection_end if no selection */
122 INT selection_end; /* == current caret position */
123 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
124 INT left_margin; /* in pixels */
125 INT right_margin; /* in pixels */
126 RECT format_rect;
127 INT text_width; /* width of the widest line in pixels for multi line controls
128 and just line width for single line controls */
129 INT region_posx; /* Position of cursor relative to region: */
130 INT region_posy; /* -1: to left, 0: within, 1: to right */
131 EDITWORDBREAKPROC16 word_break_proc16;
132 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
133 INT line_count; /* number of lines */
134 INT y_offset; /* scroll offset in number of lines */
135 BOOL bCaptureState; /* flag indicating whether mouse was captured */
136 BOOL bEnableState; /* flag keeping the enable state */
137 HWND hwndSelf; /* the our window handle */
138 HWND hwndParent; /* Handle of parent for sending EN_* messages.
139 Even if parent will change, EN_* messages
140 should be sent to the first parent. */
141 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
142 /*
143 * only for multi line controls
144 */
145 INT lock_count; /* amount of re-entries in the EditWndProc */
146 INT tabs_count;
147 LPINT tabs;
148 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
149 HLOCAL hloc32W; /* our unicode local memory block */
150 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
151 or EM_SETHANDLE16 */
152 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
153 or EM_SETHANDLE */
154 } EDITSTATE;
155
156
157 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
158 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
159
160 /* used for disabled or read-only edit control */
161 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
162 do \
163 { /* Notify parent which has created this edit control */ \
164 TRACE("notification " str " sent to hwnd=%p\n", es->hwndParent); \
165 SendMessageW(es->hwndParent, WM_COMMAND, \
166 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
167 (LPARAM)(es->hwndSelf)); \
168 } while(0)
169
170 /*********************************************************************
171 *
172 * Declarations
173 *
174 */
175
176 /*
177 * These functions have trivial implementations
178 * We still like to call them internally
179 * "static inline" makes them more like macro's
180 */
181 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
182 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
183 static inline void EDIT_WM_Clear(EDITSTATE *es);
184 static inline void EDIT_WM_Cut(EDITSTATE *es);
185
186 /*
187 * Helper functions only valid for one type of control
188 */
189 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
190 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
191 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
192 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
193 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
194 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
195 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
196 /*
197 * Helper functions valid for both single line _and_ multi line controls
198 */
199 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
200 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
201 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
202 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
203 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
204 static void EDIT_LockBuffer(EDITSTATE *es);
205 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
206 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
207 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
208 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
209 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
210 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
211 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
212 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
213 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
214 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
215 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
216 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
217 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
218 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
219 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
220 /*
221 * EM_XXX message handlers
222 */
223 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
224 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
225 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
226 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
227 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode);
228 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
229 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
230 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
231 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
232 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
233 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
234 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
235 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
236 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
237 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
238 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
239 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
240 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
241 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
242 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
243 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
244 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
245 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
246 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
247 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp);
248 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
249 static BOOL EDIT_EM_Undo(EDITSTATE *es);
250 /*
251 * WM_XXX message handlers
252 */
253 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
254 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
255 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
256 static void EDIT_WM_Copy(EDITSTATE *es);
257 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
258 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
259 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
260 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode);
261 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
262 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
263 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
264 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
265 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
266 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
267 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
268 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
269 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
270 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc);
271 static void EDIT_WM_Paste(EDITSTATE *es);
272 static void EDIT_WM_SetFocus(EDITSTATE *es);
273 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
274 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode);
275 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
276 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
277 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
278 static void EDIT_WM_Timer(EDITSTATE *es);
279 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
280 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
281 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
282
283 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
284 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
285
286 /*********************************************************************
287 * edit class descriptor
288 */
289 const struct builtin_class_descr EDIT_builtin_class =
290 {
291 "Edit", /* name */
292 CS_DBLCLKS | CS_PARENTDC, /* style */
293 EditWndProcA, /* procA */
294 EditWndProcW, /* procW */
295 sizeof(EDITSTATE *), /* extra */
296 IDC_IBEAM, /* cursor */
297 0 /* brush */
298 };
299
300
301 /*********************************************************************
302 *
303 * EM_CANUNDO
304 *
305 */
306 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
307 {
308 return (es->undo_insert_count || strlenW(es->undo_text));
309 }
310
311
312 /*********************************************************************
313 *
314 * EM_EMPTYUNDOBUFFER
315 *
316 */
317 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
318 {
319 es->undo_insert_count = 0;
320 *es->undo_text = '\0';
321 }
322
323
324 /*********************************************************************
325 *
326 * WM_CLEAR
327 *
328 */
329 static inline void EDIT_WM_Clear(EDITSTATE *es)
330 {
331 static const WCHAR empty_stringW[] = {0};
332
333 /* Protect read-only edit control from modification */
334 if(es->style & ES_READONLY)
335 return;
336
337 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
338 }
339
340
341 /*********************************************************************
342 *
343 * WM_CUT
344 *
345 */
346 static inline void EDIT_WM_Cut(EDITSTATE *es)
347 {
348 EDIT_WM_Copy(es);
349 EDIT_WM_Clear(es);
350 }
351
352
353 /**********************************************************************
354 * get_app_version
355 *
356 * Returns the window version in case Wine emulates a later version
357 * of windows than the application expects.
358 *
359 * In a number of cases when windows runs an application that was
360 * designed for an earlier windows version, windows reverts
361 * to "old" behaviour of that earlier version.
362 *
363 * An example is a disabled edit control that needs to be painted.
364 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
365 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
366 * applications with an expected version 0f 4.0 or higher.
367 *
368 */
369 static DWORD get_app_version(void)
370 {
371 static DWORD version;
372 if (!version)
373 {
374 DWORD dwEmulatedVersion;
375 OSVERSIONINFOW info;
376 DWORD dwProcVersion = GetProcessVersion(0);
377
378 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
379 GetVersionExW( &info );
380 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
381 /* FIXME: this may not be 100% correct; see discussion on the
382 * wine developer list in Nov 1999 */
383 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
384 }
385 return version;
386 }
387
388
389 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
390 {
391 UINT msg;
392
393 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
394 msg = WM_CTLCOLORSTATIC;
395 else
396 msg = WM_CTLCOLOREDIT;
397
398 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
399 return (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
400 }
401
402 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
403 {
404 if(unicode)
405 return DefWindowProcW(hwnd, msg, wParam, lParam);
406 else
407 return DefWindowProcA(hwnd, msg, wParam, lParam);
408 }
409
410 /*********************************************************************
411 *
412 * EditWndProc_common
413 *
414 * The messages are in the order of the actual integer values
415 * (which can be found in include/windows.h)
416 * Wherever possible the 16 bit versions are converted to
417 * the 32 bit ones, so that we can 'fall through' to the
418 * helper functions. These are mostly 32 bit (with a few
419 * exceptions, clearly indicated by a '16' extension to their
420 * names).
421 *
422 */
423 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
424 WPARAM wParam, LPARAM lParam, BOOL unicode )
425 {
426 EDITSTATE *es = (EDITSTATE *)GetWindowLongW( hwnd, 0 );
427 LRESULT result = 0;
428
429 TRACE("hwnd=%p msg=%x (%s) wparam=%x lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
430
431 if (!es && msg != WM_NCCREATE)
432 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
433
434 if (es && (msg != WM_DESTROY)) EDIT_LockBuffer(es);
435
436 switch (msg) {
437 case EM_GETSEL16:
438 wParam = 0;
439 lParam = 0;
440 /* fall through */
441 case EM_GETSEL:
442 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
443 break;
444
445 case EM_SETSEL16:
446 if ((short)LOWORD(lParam) == -1)
447 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
448 else
449 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
450 if (!wParam)
451 EDIT_EM_ScrollCaret(es);
452 result = 1;
453 break;
454 case EM_SETSEL:
455 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
456 EDIT_EM_ScrollCaret(es);
457 result = 1;
458 break;
459
460 case EM_GETRECT16:
461 if (lParam)
462 {
463 RECT16 *r16 = MapSL(lParam);
464 r16->left = es->format_rect.left;
465 r16->top = es->format_rect.top;
466 r16->right = es->format_rect.right;
467 r16->bottom = es->format_rect.bottom;
468 }
469 break;
470 case EM_GETRECT:
471 if (lParam)
472 CopyRect((LPRECT)lParam, &es->format_rect);
473 break;
474
475 case EM_SETRECT16:
476 if ((es->style & ES_MULTILINE) && lParam) {
477 RECT rc;
478 RECT16 *r16 = MapSL(lParam);
479 rc.left = r16->left;
480 rc.top = r16->top;
481 rc.right = r16->right;
482 rc.bottom = r16->bottom;
483 EDIT_SetRectNP(es, &rc);
484 EDIT_UpdateText(es, NULL, TRUE);
485 }
486 break;
487 case EM_SETRECT:
488 if ((es->style & ES_MULTILINE) && lParam) {
489 EDIT_SetRectNP(es, (LPRECT)lParam);
490 EDIT_UpdateText(es, NULL, TRUE);
491 }
492 break;
493
494 case EM_SETRECTNP16:
495 if ((es->style & ES_MULTILINE) && lParam) {
496 RECT rc;
497 RECT16 *r16 = MapSL(lParam);
498 rc.left = r16->left;
499 rc.top = r16->top;
500 rc.right = r16->right;
501 rc.bottom = r16->bottom;
502 EDIT_SetRectNP(es, &rc);
503 }
504 break;
505 case EM_SETRECTNP:
506 if ((es->style & ES_MULTILINE) && lParam)
507 EDIT_SetRectNP(es, (LPRECT)lParam);
508 break;
509
510 case EM_SCROLL16:
511 case EM_SCROLL:
512 result = EDIT_EM_Scroll(es, (INT)wParam);
513 break;
514
515 case EM_LINESCROLL16:
516 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
517 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
518 /* fall through */
519 case EM_LINESCROLL:
520 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
521 break;
522
523 case EM_SCROLLCARET16:
524 case EM_SCROLLCARET:
525 EDIT_EM_ScrollCaret(es);
526 result = 1;
527 break;
528
529 case EM_GETMODIFY16:
530 case EM_GETMODIFY:
531 result = ((es->flags & EF_MODIFIED) != 0);
532 break;
533
534 case EM_SETMODIFY16:
535 case EM_SETMODIFY:
536 if (wParam)
537 es->flags |= EF_MODIFIED;
538 else
539 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
540 break;
541
542 case EM_GETLINECOUNT16:
543 case EM_GETLINECOUNT:
544 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
545 break;
546
547 case EM_LINEINDEX16:
548 if ((INT16)wParam == -1)
549 wParam = (WPARAM)-1;
550 /* fall through */
551 case EM_LINEINDEX:
552 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
553 break;
554
555 case EM_SETHANDLE16:
556 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
557 break;
558 case EM_SETHANDLE:
559 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
560 break;
561
562 case EM_GETHANDLE16:
563 result = (LRESULT)EDIT_EM_GetHandle16(es);
564 break;
565 case EM_GETHANDLE:
566 result = (LRESULT)EDIT_EM_GetHandle(es);
567 break;
568
569 case EM_GETTHUMB16:
570 case EM_GETTHUMB:
571 result = EDIT_EM_GetThumb(es);
572 break;
573
574 /* these messages missing from specs */
575 case WM_USER+15:
576 case 0x00bf:
577 case WM_USER+16:
578 case 0x00c0:
579 case WM_USER+19:
580 case 0x00c3:
581 case WM_USER+26:
582 case 0x00ca:
583 FIXME("undocumented message 0x%x, please report\n", msg);
584 result = DefWindowProcW(hwnd, msg, wParam, lParam);
585 break;
586
587 case EM_LINELENGTH16:
588 case EM_LINELENGTH:
589 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
590 break;
591
592 case EM_REPLACESEL16:
593 lParam = (LPARAM)MapSL(lParam);
594 unicode = FALSE; /* 16-bit message is always ascii */
595 /* fall through */
596 case EM_REPLACESEL:
597 {
598 LPWSTR textW;
599
600 if(unicode)
601 textW = (LPWSTR)lParam;
602 else
603 {
604 LPSTR textA = (LPSTR)lParam;
605 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
606 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
607 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
608 }
609
610 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
611 result = 1;
612
613 if(!unicode)
614 HeapFree(GetProcessHeap(), 0, textW);
615 break;
616 }
617
618 case EM_GETLINE16:
619 lParam = (LPARAM)MapSL(lParam);
620 unicode = FALSE; /* 16-bit message is always ascii */
621 /* fall through */
622 case EM_GETLINE:
623 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
624 break;
625
626 case EM_LIMITTEXT16:
627 case EM_SETLIMITTEXT:
628 EDIT_EM_SetLimitText(es, (INT)wParam);
629 break;
630
631 case EM_CANUNDO16:
632 case EM_CANUNDO:
633 result = (LRESULT)EDIT_EM_CanUndo(es);
634 break;
635
636 case EM_UNDO16:
637 case EM_UNDO:
638 case WM_UNDO:
639 result = (LRESULT)EDIT_EM_Undo(es);
640 break;
641
642 case EM_FMTLINES16:
643 case EM_FMTLINES:
644 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
645 break;
646
647 case EM_LINEFROMCHAR16:
648 case EM_LINEFROMCHAR:
649 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
650 break;
651
652 case EM_SETTABSTOPS16:
653 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
654 break;
655 case EM_SETTABSTOPS:
656 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
657 break;
658
659 case EM_SETPASSWORDCHAR16:
660 unicode = FALSE; /* 16-bit message is always ascii */
661 /* fall through */
662 case EM_SETPASSWORDCHAR:
663 {
664 WCHAR charW = 0;
665
666 if(unicode)
667 charW = (WCHAR)wParam;
668 else
669 {
670 CHAR charA = wParam;
671 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
672 }
673
674 EDIT_EM_SetPasswordChar(es, charW);
675 break;
676 }
677
678 case EM_EMPTYUNDOBUFFER16:
679 case EM_EMPTYUNDOBUFFER:
680 EDIT_EM_EmptyUndoBuffer(es);
681 break;
682
683 case EM_GETFIRSTVISIBLELINE16:
684 result = es->y_offset;
685 break;
686 case EM_GETFIRSTVISIBLELINE:
687 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
688 break;
689
690 case EM_SETREADONLY16:
691 case EM_SETREADONLY:
692 if (wParam) {
693 SetWindowLongW( hwnd, GWL_STYLE,
694 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
695 es->style |= ES_READONLY;
696 } else {
697 SetWindowLongW( hwnd, GWL_STYLE,
698 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
699 es->style &= ~ES_READONLY;
700 }
701 result = 1;
702 break;
703
704 case EM_SETWORDBREAKPROC16:
705 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
706 break;
707 case EM_SETWORDBREAKPROC:
708 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
709 break;
710
711 case EM_GETWORDBREAKPROC16:
712 result = (LRESULT)es->word_break_proc16;
713 break;
714 case EM_GETWORDBREAKPROC:
715 result = (LRESULT)es->word_break_proc;
716 break;
717
718 case EM_GETPASSWORDCHAR16:
719 unicode = FALSE; /* 16-bit message is always ascii */
720 /* fall through */
721 case EM_GETPASSWORDCHAR:
722 {
723 if(unicode)
724 result = es->password_char;
725 else
726 {
727 WCHAR charW = es->password_char;
728 CHAR charA = 0;
729 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
730 result = charA;
731 }
732 break;
733 }
734
735 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
736
737 case EM_SETMARGINS:
738 EDIT_EM_SetMargins(es, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
739 break;
740
741 case EM_GETMARGINS:
742 result = MAKELONG(es->left_margin, es->right_margin);
743 break;
744
745 case EM_GETLIMITTEXT:
746 result = es->buffer_limit;
747 break;
748
749 case EM_POSFROMCHAR:
750 result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
751 break;
752
753 case EM_CHARFROMPOS:
754 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
755 break;
756
757 /* End of the EM_ messages which were in numerical order; what order
758 * are these in? vaguely alphabetical?
759 */
760
761 case WM_NCCREATE:
762 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
763 break;
764
765 case WM_DESTROY:
766 result = EDIT_WM_Destroy(es);
767 es = NULL;
768 break;
769
770 case WM_GETDLGCODE:
771 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
772
773 if (es->style & ES_MULTILINE)
774 {
775 result |= DLGC_WANTALLKEYS;
776 break;
777 }
778
779 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
780 {
781 int vk = (int)((LPMSG)lParam)->wParam;
782
783 if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
784 {
785 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
786 result |= DLGC_WANTMESSAGE;
787 }
788 }
789 break;
790
791 case WM_IME_CHAR:
792 if (!unicode)
793 {
794 WCHAR charW;
795 CHAR strng[2];
796
797 strng[0] = wParam >> 8;
798 strng[1] = wParam & 0xff;
799 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
800 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
801 EDIT_WM_Char(es, charW);
802 break;
803 }
804 /* fall through */
805 case WM_CHAR:
806 {
807 WCHAR charW;
808
809 if(unicode)
810 charW = wParam;
811 else
812 {
813 CHAR charA = wParam;
814 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
815 }
816
817 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
818 {
819 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
820 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
821 break;
822 }
823 EDIT_WM_Char(es, charW);
824 break;
825 }
826
827 case WM_CLEAR:
828 EDIT_WM_Clear(es);
829 break;
830
831 case WM_COMMAND:
832 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
833 break;
834
835 case WM_CONTEXTMENU:
836 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
837 break;
838
839 case WM_COPY:
840 EDIT_WM_Copy(es);
841 break;
842
843 case WM_CREATE:
844 if(unicode)
845 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
846 else
847 {
848 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
849 LPWSTR nameW = NULL;
850 if(nameA)
851 {
852 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
853 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
854 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
855 }
856 result = EDIT_WM_Create(es, nameW);
857 HeapFree(GetProcessHeap(), 0, nameW);
858 }
859 break;
860
861 case WM_CUT:
862 EDIT_WM_Cut(es);
863 break;
864
865 case WM_ENABLE:
866 es->bEnableState = (BOOL) wParam;
867 EDIT_UpdateText(es, NULL, TRUE);
868 break;
869
870 case WM_ERASEBKGND:
871 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
872 break;
873
874 case WM_GETFONT:
875 result = (LRESULT)es->font;
876 break;
877
878 case WM_GETTEXT:
879 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
880 break;
881
882 case WM_GETTEXTLENGTH:
883 if (unicode) result = strlenW(es->text);
884 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
885 NULL, 0, NULL, NULL );
886 break;
887
888 case WM_HSCROLL:
889 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
890 break;
891
892 case WM_KEYDOWN:
893 result = EDIT_WM_KeyDown(es, (INT)wParam);
894 break;
895
896 case WM_KILLFOCUS:
897 result = EDIT_WM_KillFocus(es);
898 break;
899
900 case WM_LBUTTONDBLCLK:
901 result = EDIT_WM_LButtonDblClk(es);
902 break;
903
904 case WM_LBUTTONDOWN:
905 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
906 break;
907
908 case WM_LBUTTONUP:
909 result = EDIT_WM_LButtonUp(es);
910 break;
911
912 case WM_MBUTTONDOWN:
913 result = EDIT_WM_MButtonDown(es);
914 break;
915
916 case WM_MOUSEMOVE:
917 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
918 break;
919
920 case WM_PAINT:
921 EDIT_WM_Paint(es, (HDC)wParam);
922 break;
923
924 case WM_PASTE:
925 EDIT_WM_Paste(es);
926 break;
927
928 case WM_SETFOCUS:
929 EDIT_WM_SetFocus(es);
930 break;
931
932 case WM_SETFONT:
933 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
934 break;
935
936 case WM_SETREDRAW:
937 /* FIXME: actually set an internal flag and behave accordingly */
938 break;
939
940 case WM_SETTEXT:
941 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
942 result = TRUE;
943 break;
944
945 case WM_SIZE:
946 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
947 break;
948
949 case WM_STYLECHANGED:
950 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
951 break;
952
953 case WM_STYLECHANGING:
954 result = 0; /* See EDIT_WM_StyleChanged */
955 break;
956
957 case WM_SYSKEYDOWN:
958 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
959 break;
960
961 case WM_TIMER:
962 EDIT_WM_Timer(es);
963 break;
964
965 case WM_VSCROLL:
966 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
967 break;
968
969 case WM_MOUSEWHEEL:
970 {
971 int gcWheelDelta = 0;
972 UINT pulScrollLines = 3;
973 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
974
975 if (wParam & (MK_SHIFT | MK_CONTROL)) {
976 result = DefWindowProcW(hwnd, msg, wParam, lParam);
977 break;
978 }
979 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
980 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
981 {
982 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
983 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
984 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
985 }
986 }
987 break;
988 default:
989 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
990 break;
991 }
992
993 if (es) EDIT_UnlockBuffer(es, FALSE);
994
995 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
996
997 return result;
998 }
999
1000 /*********************************************************************
1001 *
1002 * EditWndProcW (USER32.@)
1003 */
1004 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1005 {
1006 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1007 }
1008
1009 /*********************************************************************
1010 *
1011 * EditWndProc (USER32.@)
1012 */
1013 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1014 {
1015 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1016 }
1017
1018 /*********************************************************************
1019 *
1020 * EDIT_BuildLineDefs_ML
1021 *
1022 * Build linked list of text lines.
1023 * Lines can end with '\0' (last line), a character (if it is wrapped),
1024 * a soft return '\r\r\n' or a hard return '\r\n'
1025 *
1026 */
1027 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1028 {
1029 HDC dc;
1030 HFONT old_font = 0;
1031 LPWSTR current_position, cp;
1032 INT fw;
1033 LINEDEF *current_line;
1034 LINEDEF *previous_line;
1035 LINEDEF *start_line;
1036 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1037 INT line_count = es->line_count;
1038 INT orig_net_length;
1039 RECT rc;
1040
1041 if (istart == iend && delta == 0)
1042 return;
1043
1044 dc = GetDC(es->hwndSelf);
1045 if (es->font)
1046 old_font = SelectObject(dc, es->font);
1047
1048 previous_line = NULL;
1049 current_line = es->first_line_def;
1050
1051 /* Find starting line. istart must lie inside an existing line or
1052 * at the end of buffer */
1053 do {
1054 if (istart < current_line->index + current_line->length ||
1055 current_line->ending == END_0)
1056 break;
1057
1058 previous_line = current_line;
1059 current_line = current_line->next;
1060 line_index++;
1061 } while (current_line);
1062
1063 if (!current_line) /* Error occurred start is not inside previous buffer */
1064 {
1065 FIXME(" modification occurred outside buffer\n");
1066 ReleaseDC(es->hwndSelf, dc);
1067 return;
1068 }
1069
1070 /* Remember start of modifications in order to calculate update region */
1071 nstart_line = line_index;
1072 nstart_index = current_line->index;
1073
1074 /* We must start to reformat from the previous line since the modifications
1075 * may have caused the line to wrap upwards. */
1076 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1077 {
1078 line_index--;
1079 current_line = previous_line;
1080 }
1081 start_line = current_line;
1082
1083 fw = es->format_rect.right - es->format_rect.left;
1084 current_position = es->text + current_line->index;
1085 do {
1086 if (current_line != start_line)
1087 {
1088 if (!current_line || current_line->index + delta > current_position - es->text)
1089 {
1090 /* The buffer has been expanded, create a new line and
1091 insert it into the link list */
1092 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1093 new_line->next = previous_line->next;
1094 previous_line->next = new_line;
1095 current_line = new_line;
1096 es->line_count++;
1097 }
1098 else if (current_line->index + delta < current_position - es->text)
1099 {
1100 /* The previous line merged with this line so we delete this extra entry */
1101 previous_line->next = current_line->next;
1102 HeapFree(GetProcessHeap(), 0, current_line);
1103 current_line = previous_line->next;
1104 es->line_count--;
1105 continue;
1106 }
1107 else /* current_line->index + delta == current_position */
1108 {
1109 if (current_position - es->text > iend)
1110 break; /* We reached end of line modifications */
1111 /* else recalulate this line */
1112 }
1113 }
1114
1115 current_line->index = current_position - es->text;
1116 orig_net_length = current_line->net_length;
1117
1118 /* Find end of line */
1119 cp = current_position;
1120 while (*cp) {
1121 if (*cp == '\n') break;
1122 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1123 break;
1124 cp++;
1125 }
1126
1127 /* Mark type of line termination */
1128 if (!(*cp)) {
1129 current_line->ending = END_0;
1130 current_line->net_length = strlenW(current_position);
1131 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1132 current_line->ending = END_SOFT;
1133 current_line->net_length = cp - current_position - 1;
1134 } else if (*cp == '\n') {
1135 current_line->ending = END_RICH;
1136 current_line->net_length = cp - current_position;
1137 } else {
1138 current_line->ending = END_HARD;
1139 current_line->net_length = cp - current_position;
1140 }
1141
1142 /* Calculate line width */
1143 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1144 current_position, current_line->net_length,
1145 es->tabs_count, es->tabs));
1146
1147 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1148 if (!(es->style & ES_AUTOHSCROLL)) {
1149 if (current_line->width > fw) {
1150 INT next = 0;
1151 INT prev;
1152 do {
1153 prev = next;
1154 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1155 prev + 1, current_line->net_length, WB_RIGHT);
1156 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1157 current_position, next, es->tabs_count, es->tabs));
1158 } while (current_line->width <= fw);
1159 if (!prev) { /* Didn't find a line break so force a break */
1160 next = 0;
1161 do {
1162 prev = next;
1163 next++;
1164 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1165 current_position, next, es->tabs_count, es->tabs));
1166 } while (current_line->width <= fw);
1167 if (!prev)
1168 prev = 1;
1169 }
1170
1171 /* If the first line we are calculating, wrapped before istart, we must
1172 * adjust istart in order for this to be reflected in the update region. */
1173 if (current_line->index == nstart_index && istart > current_line->index + prev)
1174 istart = current_line->index + prev;
1175 /* else if we are updating the previous line before the first line we
1176 * are re-calculating and it expanded */
1177 else if (current_line == start_line &&
1178 current_line->index != nstart_index && orig_net_length < prev)
1179 {
1180 /* Line expanded due to an upwards line wrap so we must partially include
1181 * previous line in update region */
1182 nstart_line = line_index;
1183 nstart_index = current_line->index;
1184 istart = current_line->index + orig_net_length;
1185 }
1186
1187 current_line->net_length = prev;
1188 current_line->ending = END_WRAP;
1189 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1190 current_line->net_length, es->tabs_count, es->tabs));
1191 }
1192 else if (orig_net_length < current_line->net_length &&
1193 current_line == start_line &&
1194 current_line->index != nstart_index) {
1195 /* The previous line expanded but it's still not as wide as the client rect */
1196 /* The expansion is due to an upwards line wrap so we must partially include
1197 it in the update region */
1198 nstart_line = line_index;
1199 nstart_index = current_line->index;
1200 istart = current_line->index + orig_net_length;
1201 }
1202 }
1203
1204
1205 /* Adjust length to include line termination */
1206 switch (current_line->ending) {
1207 case END_SOFT:
1208 current_line->length = current_line->net_length + 3;
1209 break;
1210 case END_RICH:
1211 current_line->length = current_line->net_length + 1;
1212 break;
1213 case END_HARD:
1214 current_line->length = current_line->net_length + 2;
1215 break;
1216 case END_WRAP:
1217 case END_0:
1218 current_line->length = current_line->net_length;
1219 break;
1220 }
1221 es->text_width = max(es->text_width, current_line->width);
1222 current_position += current_line->length;
1223 previous_line = current_line;
1224 current_line = current_line->next;
1225 line_index++;
1226 } while (previous_line->ending != END_0);
1227
1228 /* Finish adjusting line indexes by delta or remove hanging lines */
1229 if (previous_line->ending == END_0)
1230 {
1231 LINEDEF *pnext = NULL;
1232
1233 previous_line->next = NULL;
1234 while (current_line)
1235 {
1236 pnext = current_line->next;
1237 HeapFree(GetProcessHeap(), 0, current_line);
1238 current_line = pnext;
1239 es->line_count--;
1240 }
1241 }
1242 else if (delta != 0)
1243 {
1244 while (current_line)
1245 {
1246 current_line->index += delta;
1247 current_line = current_line->next;
1248 }
1249 }
1250
1251 /* Calculate rest of modification rectangle */
1252 if (hrgn)
1253 {
1254 HRGN tmphrgn;
1255 /*
1256 * We calculate two rectangles. One for the first line which may have
1257 * an indent with respect to the format rect. The other is a format-width
1258 * rectangle that spans the rest of the lines that changed or moved.
1259 */
1260 rc.top = es->format_rect.top + nstart_line * es->line_height -
1261 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1262 rc.bottom = rc.top + es->line_height;
1263 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1264 rc.left = es->format_rect.left;
1265 else
1266 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1267 es->text + nstart_index, istart - nstart_index,
1268 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1269 rc.right = es->format_rect.right;
1270 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1271
1272 rc.top = rc.bottom;
1273 rc.left = es->format_rect.left;
1274 rc.right = es->format_rect.right;
1275 /*
1276 * If lines were added or removed we must re-paint the remainder of the
1277 * lines since the remaining lines were either shifted up or down.
1278 */
1279 if (line_count < es->line_count) /* We added lines */
1280 rc.bottom = es->line_count * es->line_height;
1281 else if (line_count > es->line_count) /* We removed lines */
1282 rc.bottom = line_count * es->line_height;
1283 else
1284 rc.bottom = line_index * es->line_height;
1285 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1286 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1287 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1288 DeleteObject(tmphrgn);
1289 }
1290
1291 if (es->font)
1292 SelectObject(dc, old_font);
1293
1294 ReleaseDC(es->hwndSelf, dc);
1295 }
1296
1297 /*********************************************************************
1298 *
1299 * EDIT_CalcLineWidth_SL
1300 *
1301 */
1302 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1303 {
1304 SIZE size;
1305 LPWSTR text;
1306 HDC dc;
1307 HFONT old_font = 0;
1308
1309 text = EDIT_GetPasswordPointer_SL(es);
1310
1311 dc = GetDC(es->hwndSelf);
1312 if (es->font)
1313 old_font = SelectObject(dc, es->font);
1314
1315 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1316
1317 if (es->font)
1318 SelectObject(dc, old_font);
1319 ReleaseDC(es->hwndSelf, dc);
1320
1321 if (es->style & ES_PASSWORD)
1322 HeapFree(GetProcessHeap(), 0, text);
1323
1324 es->text_width = size.cx;
1325 }
1326
1327 /*********************************************************************
1328 *
1329 * EDIT_CallWordBreakProc
1330 *
1331 * Call appropriate WordBreakProc (internal or external).
1332 *
1333 * Note: The "start" argument should always be an index referring
1334 * to es->text. The actual wordbreak proc might be
1335 * 16 bit, so we can't always pass any 32 bit LPSTR.
1336 * Hence we assume that es->text is the buffer that holds
1337 * the string under examination (we can decide this for ourselves).
1338 *
1339 */
1340 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1341 {
1342 INT ret;
1343
1344 if (es->word_break_proc16) {
1345 HGLOBAL16 hglob16;
1346 SEGPTR segptr;
1347 INT countA;
1348 WORD args[5];
1349 DWORD result;
1350
1351 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1352 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1353 segptr = K32WOWGlobalLock16(hglob16);
1354 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1355 args[4] = SELECTOROF(segptr);
1356 args[3] = OFFSETOF(segptr);
1357 args[2] = index;
1358 args[1] = countA;
1359 args[0] = action;
1360 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1361 ret = LOWORD(result);
1362 GlobalUnlock16(hglob16);
1363 GlobalFree16(hglob16);
1364 }
1365 else if (es->word_break_proc)
1366 {
1367 if(es->is_unicode)
1368 {
1369 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1370
1371 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1372 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1373 ret = wbpW(es->text + start, index, count, action);
1374 }
1375 else
1376 {
1377 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1378 INT countA;
1379 CHAR *textA;
1380
1381 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1382 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1383 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1384 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1385 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1386 ret = wbpA(textA, index, countA, action);
1387 HeapFree(GetProcessHeap(), 0, textA);
1388 }
1389 }
1390 else
1391 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1392
1393 return ret;
1394 }
1395
1396
1397 /*********************************************************************
1398 *
1399 * EDIT_CharFromPos
1400 *
1401 * Beware: This is not the function called on EM_CHARFROMPOS
1402 * The position _can_ be outside the formatting / client
1403 * rectangle
1404 * The return value is only the character index
1405 *
1406 */
1407 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1408 {
1409 INT index;
1410 HDC dc;
1411 HFONT old_font = 0;
1412
1413 if (es->style & ES_MULTILINE) {
1414 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1415 INT line_index = 0;
1416 LINEDEF *line_def = es->first_line_def;
1417 INT low, high;
1418 while ((line > 0) && line_def->next) {
1419 line_index += line_def->length;
1420 line_def = line_def->next;
1421 line--;
1422 }
1423 x += es->x_offset - es->format_rect.left;
1424 if (es->style & ES_RIGHT)
1425 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1426 else if (es->style & ES_CENTER)
1427 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1428 if (x >= line_def->width) {
1429 if (after_wrap)
1430 *after_wrap = (line_def->ending == END_WRAP);
1431 return line_index + line_def->net_length;
1432 }
1433 if (x <= 0) {
1434 if (after_wrap)
1435 *after_wrap = FALSE;
1436 return line_index;
1437 }
1438 dc = GetDC(es->hwndSelf);
1439 if (es->font)
1440 old_font = SelectObject(dc, es->font);
1441 low = line_index + 1;
1442 high = line_index + line_def->net_length + 1;
1443 while (low < high - 1)
1444 {
1445 INT mid = (low + high) / 2;
1446 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1447 else low = mid;
1448 }
1449 index = low;
1450
1451 if (after_wrap)
1452 *after_wrap = ((index == line_index + line_def->net_length) &&
1453 (line_def->ending == END_WRAP));
1454 } else {
1455 LPWSTR text;
1456 SIZE size;
1457 if (after_wrap)
1458 *after_wrap = FALSE;
1459 x -= es->format_rect.left;
1460 if (!x)
1461 return es->x_offset;
1462
1463 if (!es->x_offset)
1464 {
1465 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1466 if (es->style & ES_RIGHT)
1467 x -= indent;
1468 else if (es->style & ES_CENTER)
1469 x -= indent / 2;
1470 }
1471
1472 text = EDIT_GetPasswordPointer_SL(es);
1473 dc = GetDC(es->hwndSelf);
1474 if (es->font)
1475 old_font = SelectObject(dc, es->font);
1476 if (x < 0)
1477 {
1478 INT low = 0;
1479 INT high = es->x_offset;
1480 while (low < high - 1)
1481 {
1482 INT mid = (low + high) / 2;
1483 GetTextExtentPoint32W( dc, text + mid,
1484 es->x_offset - mid, &size );
1485 if (size.cx > -x) low = mid;
1486 else high = mid;
1487 }
1488 index = low;
1489 }
1490 else
1491 {
1492 INT low = es->x_offset;
1493 INT high = strlenW(es->text) + 1;
1494 while (low < high - 1)
1495 {
1496 INT mid = (low + high) / 2;
1497 GetTextExtentPoint32W( dc, text + es->x_offset,
1498 mid - es->x_offset, &size );
1499 if (size.cx > x) high = mid;
1500 else low = mid;
1501 }
1502 index = low;
1503 }
1504 if (es->style & ES_PASSWORD)
1505 HeapFree(GetProcessHeap(), 0, text);
1506 }
1507 if (es->font)
1508 SelectObject(dc, old_font);
1509 ReleaseDC(es->hwndSelf, dc);
1510 return index;
1511 }
1512
1513
1514 /*********************************************************************
1515 *
1516 * EDIT_ConfinePoint
1517 *
1518 * adjusts the point to be within the formatting rectangle
1519 * (so CharFromPos returns the nearest _visible_ character)
1520 *
1521 */
1522 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1523 {
1524 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1525 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1526 }
1527
1528
1529 /*********************************************************************
1530 *
1531 * EDIT_GetLineRect
1532 *
1533 * Calculates the bounding rectangle for a line from a starting
1534 * column to an ending column.
1535 *
1536 */
1537 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1538 {
1539 INT line_index = EDIT_EM_LineIndex(es, line);
1540
1541 if (es->style & ES_MULTILINE)
1542 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1543 else
1544 rc->top = es->format_rect.top;
1545 rc->bottom = rc->top + es->line_height;
1546 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1547 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1548 }
1549
1550
1551 /*********************************************************************
1552 *
1553 * EDIT_GetPasswordPointer_SL
1554 *
1555 * note: caller should free the (optionally) allocated buffer
1556 *
1557 */
1558 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1559 {
1560 if (es->style & ES_PASSWORD) {
1561 INT len = strlenW(es->text);
1562 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1563 text[len] = '\0';
1564 while(len) text[--len] = es->password_char;
1565 return text;
1566 } else
1567 return es->text;
1568 }
1569
1570
1571 /*********************************************************************
1572 *
1573 * EDIT_LockBuffer
1574 *
1575 * This acts as a LocalLock16(), but it locks only once. This way
1576 * you can call it whenever you like, without unlocking.
1577 *
1578 * Initially the edit control allocates a HLOCAL32 buffer
1579 * (32 bit linear memory handler). However, 16 bit application
1580 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1581 * handler). From that moment on we have to keep using this 16 bit memory
1582 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1583 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1584 * conversion.
1585 *
1586 */
1587 static void EDIT_LockBuffer(EDITSTATE *es)
1588 {
1589 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
1590 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1591 HANDLE16 oldDS = stack16->ds;
1592
1593 if (!es->text) {
1594 CHAR *textA = NULL;
1595 UINT countA = 0;
1596 BOOL _16bit = FALSE;
1597
1598 if(es->hloc32W)
1599 {
1600 if(es->hloc32A)
1601 {
1602 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1603 textA = LocalLock(es->hloc32A);
1604 countA = strlen(textA) + 1;
1605 }
1606 else if(es->hloc16)
1607 {
1608 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1609 stack16->ds = hInstance;
1610 textA = MapSL(LocalLock16(es->hloc16));
1611 stack16->ds = oldDS;
1612 countA = strlen(textA) + 1;
1613 _16bit = TRUE;
1614 }
1615 }
1616 else {
1617 ERR("no buffer ... please report\n");
1618 return;
1619 }
1620
1621 if(textA)
1622 {
1623 HLOCAL hloc32W_new;
1624 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1625 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1626 if(countW_new > es->buffer_size + 1)
1627 {
1628 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1629 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1630 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1631 if(hloc32W_new)
1632 {
1633 es->hloc32W = hloc32W_new;
1634 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1635 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1636 }
1637 else
1638 WARN("FAILED! Will synchronize partially\n");
1639 }
1640 }
1641
1642 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1643 es->text = LocalLock(es->hloc32W);
1644
1645 if(textA)
1646 {
1647 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1648 if(_16bit)
1649 {
1650 stack16->ds = hInstance;
1651 LocalUnlock16(es->hloc16);
1652 stack16->ds = oldDS;
1653 }
1654 else
1655 LocalUnlock(es->hloc32A);
1656 }
1657 }
1658 es->lock_count++;
1659 }
1660
1661
1662 /*********************************************************************
1663 *
1664 * EDIT_SL_InvalidateText
1665 *
1666 * Called from EDIT_InvalidateText().
1667 * Does the job for single-line controls only.
1668 *
1669 */
1670 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1671 {
1672 RECT line_rect;
1673 RECT rc;
1674
1675 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1676 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1677 EDIT_UpdateText(es, &rc, TRUE);
1678 }
1679
1680
1681 /*********************************************************************
1682 *
1683 * EDIT_ML_InvalidateText
1684 *
1685 * Called from EDIT_InvalidateText().
1686 * Does the job for multi-line controls only.
1687 *
1688 */
1689 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1690 {
1691 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1692 INT sl = EDIT_EM_LineFromChar(es, start);
1693 INT el = EDIT_EM_LineFromChar(es, end);
1694 INT sc;
1695 INT ec;
1696 RECT rc1;
1697 RECT rcWnd;
1698 RECT rcLine;
1699 RECT rcUpdate;
1700 INT l;
1701
1702 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1703 return;
1704
1705 sc = start - EDIT_EM_LineIndex(es, sl);
1706 ec = end - EDIT_EM_LineIndex(es, el);
1707 if (sl < es->y_offset) {
1708 sl = es->y_offset;
1709 sc = 0;
1710 }
1711 if (el > es->y_offset + vlc) {
1712 el = es->y_offset + vlc;
1713 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1714 }
1715 GetClientRect(es->hwndSelf, &rc1);
1716 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1717 if (sl == el) {
1718 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1719 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1720 EDIT_UpdateText(es, &rcUpdate, TRUE);
1721 } else {
1722 EDIT_GetLineRect(es, sl, sc,
1723 EDIT_EM_LineLength(es,
1724 EDIT_EM_LineIndex(es, sl)),
1725 &rcLine);
1726 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1727 EDIT_UpdateText(es, &rcUpdate, TRUE);
1728 for (l = sl + 1 ; l < el ; l++) {
1729 EDIT_GetLineRect(es, l, 0,
1730 EDIT_EM_LineLength(es,
1731 EDIT_EM_LineIndex(es, l)),
1732 &rcLine);
1733 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1734 EDIT_UpdateText(es, &rcUpdate, TRUE);
1735 }
1736 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1737 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1738 EDIT_UpdateText(es, &rcUpdate, TRUE);
1739 }
1740 }
1741
1742
1743 /*********************************************************************
1744 *
1745 * EDIT_InvalidateText
1746 *
1747 * Invalidate the text from offset start upto, but not including,
1748 * offset end. Useful for (re)painting the selection.
1749 * Regions outside the linewidth are not invalidated.
1750 * end == -1 means end == TextLength.
1751 * start and end need not be ordered.
1752 *
1753 */
1754 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1755 {
1756 if (end == start)
1757 return;
1758
1759 if (end == -1)
1760 end = strlenW(es->text);
1761
1762 if (end < start) {
1763 INT tmp = start;
1764 start = end;
1765 end = tmp;
1766 }
1767
1768 if (es->style & ES_MULTILINE)
1769 EDIT_ML_InvalidateText(es, start, end);
1770 else
1771 EDIT_SL_InvalidateText(es, start, end);
1772 }
1773
1774
1775 /*********************************************************************
1776 *
1777 * EDIT_MakeFit
1778 *
1779 * Try to fit size + 1 characters in the buffer.
1780 */
1781 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1782 {
1783 HLOCAL hNew32W;
1784
1785 if (size <= es->buffer_size)
1786 return TRUE;
1787
1788 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1789
1790 /* Force edit to unlock it's buffer. es->text now NULL */
1791 EDIT_UnlockBuffer(es, TRUE);
1792
1793 if (es->hloc32W) {
1794 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1795 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1796 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1797 es->hloc32W = hNew32W;
1798 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1799 }
1800 }
1801
1802 EDIT_LockBuffer(es);
1803
1804 if (es->buffer_size < size) {
1805 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1806 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1807 return FALSE;
1808 } else {
1809 TRACE("We now have %d+1\n", es->buffer_size);
1810 return TRUE;
1811 }
1812 }
1813
1814
1815 /*********************************************************************
1816 *
1817 * EDIT_MakeUndoFit
1818 *
1819 * Try to fit size + 1 bytes in the undo buffer.
1820 *
1821 */
1822 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1823 {
1824 UINT alloc_size;
1825
1826 if (size <= es->undo_buffer_size)
1827 return TRUE;
1828
1829 TRACE("trying to ReAlloc to %d+1\n", size);
1830
1831 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1832 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1833 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1834 return TRUE;
1835 }
1836 else
1837 {
1838 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1839 return FALSE;
1840 }
1841 }
1842
1843
1844 /*********************************************************************
1845 *
1846 * EDIT_MoveBackward
1847 *
1848 */
1849 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1850 {
1851 INT e = es->selection_end;
1852
1853 if (e) {
1854 e--;
1855 if ((es->style & ES_MULTILINE) && e &&
1856 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1857 e--;
1858 if (e && (es->text[e - 1] == '\r'))
1859 e--;
1860 }
1861 }
1862 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1863 EDIT_EM_ScrollCaret(es);
1864 }
1865
1866
1867 /*********************************************************************
1868 *
1869 * EDIT_MoveDown_ML
1870 *
1871 * Only for multi line controls
1872 * Move the caret one line down, on a column with the nearest
1873 * x coordinate on the screen (might be a different column).
1874 *
1875 */
1876 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1877 {
1878 INT s = es->selection_start;
1879 INT e = es->selection_end;
1880 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1881 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1882 INT x = (short)LOWORD(pos);
1883 INT y = (short)HIWORD(pos);
1884
1885 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1886 if (!extend)
1887 s = e;
1888 EDIT_EM_SetSel(es, s, e, after_wrap);
1889 EDIT_EM_ScrollCaret(es);
1890 }
1891
1892
1893 /*********************************************************************
1894 *
1895 * EDIT_MoveEnd
1896 *
1897 */
1898 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1899 {
1900 BOOL after_wrap = FALSE;
1901 INT e;
1902
1903 /* Pass a high value in x to make sure of receiving the end of the line */
1904 if (es->style & ES_MULTILINE)
1905 e = EDIT_CharFromPos(es, 0x3fffffff,
1906 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1907 else
1908 e = strlenW(es->text);
1909 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1910 EDIT_EM_ScrollCaret(es);
1911 }
1912
1913
1914 /*********************************************************************
1915 *
1916 * EDIT_MoveForward
1917 *
1918 */
1919 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1920 {
1921 INT e = es->selection_end;
1922
1923 if (es->text[e]) {
1924 e++;
1925 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1926 if (es->text[e] == '\n')
1927 e++;
1928 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1929 e += 2;
1930 }
1931 }
1932 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1933 EDIT_EM_ScrollCaret(es);
1934 }
1935
1936
1937 /*********************************************************************
1938 *
1939 * EDIT_MoveHome
1940 *
1941 * Home key: move to beginning of line.
1942 *
1943 */
1944 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1945 {
1946 INT e;
1947
1948 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1949 if (es->style & ES_MULTILINE)
1950 e = EDIT_CharFromPos(es, -es->x_offset,
1951 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1952 else
1953 e = 0;
1954 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1955 EDIT_EM_ScrollCaret(es);
1956 }
1957
1958
1959 /*********************************************************************
1960 *
1961 * EDIT_MovePageDown_ML
1962 *
1963 * Only for multi line controls
1964 * Move the caret one page down, on a column with the nearest
1965 * x coordinate on the screen (might be a different column).
1966 *
1967 */
1968 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1969 {
1970 INT s = es->selection_start;
1971 INT e = es->selection_end;
1972 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1973 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1974 INT x = (short)LOWORD(pos);
1975 INT y = (short)HIWORD(pos);
1976
1977 e = EDIT_CharFromPos(es, x,
1978 y + (es->format_rect.bottom - es->format_rect.top),
1979 &after_wrap);
1980 if (!extend)
1981 s = e;
1982 EDIT_EM_SetSel(es, s, e, after_wrap);
1983 EDIT_EM_ScrollCaret(es);
1984 }
1985
1986
1987 /*********************************************************************
1988 *
1989 * EDIT_MovePageUp_ML
1990 *
1991 * Only for multi line controls
1992 * Move the caret one page up, on a column with the nearest
1993 * x coordinate on the screen (might be a different column).
1994 *
1995 */
1996 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1997 {
1998 INT s = es->selection_start;
1999 INT e = es->selection_end;
2000 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2001 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2002 INT x = (short)LOWORD(pos);
2003 INT y = (short)HIWORD(pos);
2004
2005 e = EDIT_CharFromPos(es, x,
2006 y - (es->format_rect.bottom - es->format_rect.top),
2007 &after_wrap);
2008 if (!extend)
2009 s = e;
2010 EDIT_EM_SetSel(es, s, e, after_wrap);
2011 EDIT_EM_ScrollCaret(es);
2012 }
2013
2014
2015 /*********************************************************************
2016 *
2017 * EDIT_MoveUp_ML
2018 *
2019 * Only for multi line controls
2020 * Move the caret one line up, on a column with the nearest
2021 * x coordinate on the screen (might be a different column).
2022 *
2023 */
2024 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2025 {
2026 INT s = es->selection_start;
2027 INT e = es->selection_end;
2028 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2029 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2030 INT x = (short)LOWORD(pos);
2031 INT y = (short)HIWORD(pos);
2032
2033 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2034 if (!extend)
2035 s = e;
2036 EDIT_EM_SetSel(es, s, e, after_wrap);
2037 EDIT_EM_ScrollCaret(es);
2038 }
2039
2040
2041 /*********************************************************************
2042 *
2043 * EDIT_MoveWordBackward
2044 *
2045 */
2046 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2047 {
2048 INT s = es->selection_start;
2049 INT e = es->selection_end;
2050 INT l;
2051 INT ll;
2052 INT li;
2053
2054 l = EDIT_EM_LineFromChar(es, e);
2055 ll = EDIT_EM_LineLength(es, e);
2056 li = EDIT_EM_LineIndex(es, l);
2057 if (e - li == 0) {
2058 if (l) {
2059 li = EDIT_EM_LineIndex(es, l - 1);
2060 e = li + EDIT_EM_LineLength(es, li);
2061 }
2062 } else {
2063 e = li + (INT)EDIT_CallWordBreakProc(es,
2064 li, e - li, ll, WB_LEFT);
2065 }
2066 if (!extend)
2067 s = e;
2068 EDIT_EM_SetSel(es, s, e, FALSE);
2069 EDIT_EM_ScrollCaret(es);
2070 }
2071
2072
2073 /*********************************************************************
2074 *
2075 * EDIT_MoveWordForward
2076 *
2077 */
2078 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2079 {
2080 INT s = es->selection_start;
2081 INT e = es->selection_end;
2082 INT l;
2083 INT ll;
2084 INT li;
2085
2086 l = EDIT_EM_LineFromChar(es, e);
2087 ll = EDIT_EM_LineLength(es, e);
2088 li = EDIT_EM_LineIndex(es, l);
2089 if (e - li == ll) {
2090 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2091 e = EDIT_EM_LineIndex(es, l + 1);
2092 } else {
2093 e = li + EDIT_CallWordBreakProc(es,
2094 li, e - li + 1, ll, WB_RIGHT);
2095 }
2096 if (!extend)
2097 s = e;
2098 EDIT_EM_SetSel(es, s, e, FALSE);
2099 EDIT_EM_ScrollCaret(es);
2100 }
2101
2102
2103 /*********************************************************************
2104 *
2105 * EDIT_PaintLine
2106 *
2107 */
2108 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2109 {
2110 INT s = es->selection_start;
2111 INT e = es->selection_end;
2112 INT li;
2113 INT ll;
2114 INT x;
2115 INT y;
2116 LRESULT pos;
2117
2118 if (es->style & ES_MULTILINE) {
2119 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2120 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2121 return;
2122 } else if (line)
2123 return;
2124
2125 TRACE("line=%d\n", line);
2126
2127 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2128 x = (short)LOWORD(pos);
2129 y = (short)HIWORD(pos);
2130 li = EDIT_EM_LineIndex(es, line);
2131 ll = EDIT_EM_LineLength(es, li);
2132 s = min(es->selection_start, es->selection_end);
2133 e = max(es->selection_start, es->selection_end);
2134 s = min(li + ll, max(li, s));
2135 e = min(li + ll, max(li, e));
2136 if (rev && (s != e) &&
2137 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2138 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2139 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2140 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2141 } else
2142 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2143 }
2144
2145
2146 /*********************************************************************
2147 *
2148 * EDIT_PaintText
2149 *
2150 */
2151 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2152 {
2153 COLORREF BkColor;
2154 COLORREF TextColor;
2155 INT ret;
2156 INT li;
2157 INT BkMode;
2158 SIZE size;
2159
2160 if (!count)
2161 return 0;
2162 BkMode = GetBkMode(dc);
2163 BkColor = GetBkColor(dc);
2164 TextColor = GetTextColor(dc);
2165 if (rev) {
2166 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2167 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2168 SetBkMode( dc, OPAQUE);
2169 }
2170 li = EDIT_EM_LineIndex(es, line);
2171 if (es->style & ES_MULTILINE) {
2172 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2173 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2174 } else {
2175 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2176 TextOutW(dc, x, y, text + li + col, count);
2177 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2178 ret = size.cx;
2179 if (es->style & ES_PASSWORD)
2180 HeapFree(GetProcessHeap(), 0, text);
2181 }
2182 if (rev) {
2183 SetBkColor(dc, BkColor);
2184 SetTextColor(dc, TextColor);
2185 SetBkMode( dc, BkMode);
2186 }
2187 return ret;
2188 }
2189
2190
2191 /*********************************************************************
2192 *
2193 * EDIT_SetCaretPos
2194 *
2195 */
2196 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2197 BOOL after_wrap)
2198 {
2199 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2200 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2201 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2202 }
2203
2204
2205 /*********************************************************************
2206 *
2207 * EDIT_SetRectNP
2208 *
2209 * note: this is not (exactly) the handler called on EM_SETRECTNP
2210 * it is also used to set the rect of a single line control
2211 *
2212 */
2213 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2214 {
2215 RECT ClientRect;
2216 LONG_PTR ExStyle;
2217
2218 CopyRect(&es->format_rect, rc);
2219 if (es->style & ES_MULTILINE)
2220 {
2221 if (es->style & WS_BORDER) {
2222 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2223 es->format_rect.left += bw;
2224 es->format_rect.right -= bw;
2225 es->format_rect.top += bw;
2226 es->format_rect.bottom -= bw;
2227 }
2228 }
2229 else
2230 {
2231 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2232 if (ExStyle & WS_EX_CLIENTEDGE) {
2233 if (es->line_height + 2 <=
2234 es->format_rect.bottom - es->format_rect.top) {
2235 es->format_rect.top++;
2236 es->format_rect.bottom--;
2237 }
2238 } else if (es->style & WS_BORDER) {
2239 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2240 es->format_rect.left += bw;
2241 es->format_rect.right -= bw;
2242 if (es->line_height + 2 * bw <=
2243 es->format_rect.bottom - es->format_rect.top) {
2244 es->format_rect.top += bw;
2245 es->format_rect.bottom -= bw;
2246 }
2247 }
2248 }
2249 es->format_rect.left += es->left_margin;
2250 es->format_rect.right -= es->right_margin;
2251 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2252 if (es->style & ES_MULTILINE)
2253 {
2254 INT fw, vlc, max_x_offset, max_y_offset;
2255
2256 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2257 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2258
2259 /* correct es->x_offset */
2260 fw = es->format_rect.right - es->format_rect.left;
2261 max_x_offset = es->text_width - fw;
2262 if(max_x_offset < 0) max_x_offset = 0;
2263 if(es->x_offset > max_x_offset)
2264 es->x_offset = max_x_offset;
2265
2266 /* correct es->y_offset */
2267 max_y_offset = es->line_count - vlc;
2268 if(max_y_offset < 0) max_y_offset = 0;
2269 if(es->y_offset > max_y_offset)
2270 es->y_offset = max_y_offset;
2271
2272 /* force scroll info update */
2273 EDIT_UpdateScrollInfo(es);
2274 }
2275 else
2276 /* Windows doesn't care to fix text placement for SL controls */
2277 es->format_rect.bottom = es->format_rect.top + es->line_height;
2278
2279 /* Always stay within the client area */
2280 GetClientRect(es->hwndSelf, &ClientRect);
2281 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2282
2283 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2284 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2285
2286 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2287 }
2288
2289
2290 /*********************************************************************
2291 *
2292 * EDIT_UnlockBuffer
2293 *
2294 */
2295 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2296 {
2297
2298 /* Edit window might be already destroyed */
2299 if(!IsWindow(es->hwndSelf))
2300 {
2301 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2302 return;
2303 }
2304
2305 if (!es->lock_count) {
2306 ERR("lock_count == 0 ... please report\n");
2307 return;
2308 }
2309 if (!es->text) {
2310 ERR("es->text == 0 ... please report\n");
2311 return;
2312 }
2313
2314 if (force || (es->lock_count == 1)) {
2315 if (es->hloc32W) {
2316 CHAR *textA = NULL;
2317 UINT countA = 0;
2318 UINT countW = strlenW(es->text) + 1;
2319 STACK16FRAME* stack16 = NULL;
2320 HANDLE16 oldDS = 0;
2321
2322 if(es->hloc32A)
2323 {
2324 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2325 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2326 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2327 countA = LocalSize(es->hloc32A);
2328 if(countA_new > countA)
2329 {
2330 HLOCAL hloc32A_new;
2331 UINT alloc_size = ROUND_TO_GROW(countA_new);
2332 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2333 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2334 if(hloc32A_new)
2335 {
2336 es->hloc32A = hloc32A_new;
2337 countA = LocalSize(hloc32A_new);
2338 TRACE("Real new size %d bytes\n", countA);
2339 }
2340 else
2341 WARN("FAILED! Will synchronize partially\n");
2342 }
2343 textA = LocalLock(es->hloc32A);
2344 }
2345 else if(es->hloc16)
2346 {
2347 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2348
2349 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2350 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2351
2352 stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
2353 oldDS = stack16->ds;
2354 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2355
2356 countA = LocalSize16(es->hloc16);
2357 if(countA_new > countA)
2358 {
2359 HLOCAL16 hloc16_new;
2360 UINT alloc_size = ROUND_TO_GROW(countA_new);
2361 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2362 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2363 if(hloc16_new)
2364 {
2365 es->hloc16 = hloc16_new;
2366 countA = LocalSize16(hloc16_new);
2367 TRACE("Real new size %d bytes\n", countA);
2368 }
2369 else
2370 WARN("FAILED! Will synchronize partially\n");
2371 }
2372 textA = MapSL(LocalLock16(es->hloc16));
2373 }
2374
2375 if(textA)
2376 {
2377 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2378 if(stack16)
2379 LocalUnlock16(es->hloc16);
2380 else
2381 LocalUnlock(es->hloc32A);
2382 }
2383
2384 if (stack16) stack16->ds = oldDS;
2385 LocalUnlock(es->hloc32W);
2386 es->text = NULL;
2387 }
2388 else {
2389 ERR("no buffer ... please report\n");
2390 return;
2391 }
2392 }
2393 es->lock_count--;
2394 }
2395
2396
2397 /*********************************************************************
2398 *
2399 * EDIT_UpdateScrollInfo
2400 *
2401 */
2402 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2403 {
2404 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2405 {
2406 SCROLLINFO si;
2407 si.cbSize = sizeof(SCROLLINFO);
2408 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2409 si.nMin = 0;
2410 si.nMax = es->line_count - 1;
2411 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2412 si.nPos = es->y_offset;
2413 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2414 si.nMin, si.nMax, si.nPage, si.nPos);
2415 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2416 }
2417
2418 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2419 {
2420 SCROLLINFO si;
2421 si.cbSize = sizeof(SCROLLINFO);
2422 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2423 si.nMin = 0;
2424 si.nMax = es->text_width - 1;
2425 si.nPage = es->format_rect.right - es->format_rect.left;
2426 si.nPos = es->x_offset;
2427 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2428 si.nMin, si.nMax, si.nPage, si.nPos);
2429 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2430 }
2431 }
2432
2433 /*********************************************************************
2434 *
2435 * EDIT_WordBreakProc
2436 *
2437 * Find the beginning of words.
2438 * Note: unlike the specs for a WordBreakProc, this function only
2439 * allows to be called without linebreaks between s[0] upto
2440 * s[count - 1]. Remember it is only called
2441 * internally, so we can decide this for ourselves.
2442 *
2443 */
2444 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2445 {
2446 INT ret = 0;
2447
2448 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2449
2450 if(!s) return 0;
2451
2452 switch (action) {
2453 case WB_LEFT:
2454 if (!count)
2455 break;
2456 if (index)
2457 index--;
2458 if (s[index] == ' ') {
2459 while (index && (s[index] == ' '))
2460 index--;
2461 if (index) {
2462 while (index && (s[index] != ' '))
2463 index--;
2464 if (s[index] == ' ')
2465 index++;
2466 }
2467 } else {
2468 while (index && (s[index] != ' '))
2469 index--;
2470 if (s[index] == ' ')
2471 index++;
2472 }
2473 ret = index;
2474 break;
2475 case WB_RIGHT:
2476 if (!count)
2477 break;
2478 if (index)
2479 index--;
2480 if (s[index] == ' ')
2481 while ((index < count) && (s[index] == ' ')) index++;
2482 else {
2483 while (s[index] && (s[index] != ' ') && (index < count))
2484 index++;
2485 while ((s[index] == ' ') && (index < count)) index++;
2486 }
2487 ret = index;
2488 break;
2489 case WB_ISDELIMITER:
2490 ret = (s[index] == ' ');
2491 break;
2492 default:
2493 ERR("unknown action code, please report !\n");
2494 break;
2495 }
2496 return ret;
2497 }
2498
2499
2500 /*********************************************************************
2501 *
2502 * EM_CHARFROMPOS
2503 *
2504 * returns line number (not index) in high-order word of result.
2505 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2506 * to Richedit, not to the edit control. Original documentation is valid.
2507 * FIXME: do the specs mean to return -1 if outside client area or
2508 * if outside formatting rectangle ???
2509 *
2510 */
2511 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2512 {
2513 POINT pt;
2514 RECT rc;
2515 INT index;
2516
2517 pt.x = x;
2518 pt.y = y;
2519 GetClientRect(es->hwndSelf, &rc);
2520 if (!PtInRect(&rc, pt))
2521 return -1;
2522
2523 index = EDIT_CharFromPos(es, x, y, NULL);
2524 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2525 }
2526
2527
2528 /*********************************************************************
2529 *
2530 * EM_FMTLINES
2531 *
2532 * Enable or disable soft breaks.
2533 *
2534 * This means: insert or remove the soft linebreak character (\r\r\n).
2535 * Take care to check if the text still fits the buffer after insertion.
2536 * If not, notify with EN_ERRSPACE.
2537 *
2538 */
2539 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2540 {
2541 es->flags &= ~EF_USE_SOFTBRK;
2542 if (add_eol) {
2543 es->flags |= EF_USE_SOFTBRK;
2544 FIXME("soft break enabled, not implemented\n");
2545 }
2546 return add_eol;
2547 }
2548
2549
2550 /*********************************************************************
2551 *
2552 * EM_GETHANDLE
2553 *
2554 * Hopefully this won't fire back at us.
2555 * We always start with a fixed buffer in the local heap.
2556 * Despite of the documentation says that the local heap is used
2557 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2558 * buffer on the local heap.
2559 *
2560 */
2561 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2562 {
2563 HLOCAL hLocal;
2564
2565 if (!(es->style & ES_MULTILINE))
2566 return 0;
2567
2568 if(es->is_unicode)
2569 hLocal = es->hloc32W;
2570 else
2571 {
2572 if(!es->hloc32A)
2573 {
2574 CHAR *textA;
2575 UINT countA, alloc_size;
2576 TRACE("Allocating 32-bit ANSI alias buffer\n");
2577 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2578 alloc_size = ROUND_TO_GROW(countA);
2579 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2580 {
2581 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2582 return 0;
2583 }
2584 textA = LocalLock(es->hloc32A);
2585 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2586 LocalUnlock(es->hloc32A);
2587 }
2588 hLocal = es->hloc32A;
2589 }
2590
2591 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2592 return hLocal;
2593 }
2594
2595
2596 /*********************************************************************
2597 *
2598 * EM_GETHANDLE16
2599 *
2600 * Hopefully this won't fire back at us.
2601 * We always start with a buffer in 32 bit linear memory.
2602 * However, with this message a 16 bit application requests
2603 * a handle of 16 bit local heap memory, where it expects to find
2604 * the text.
2605 * It's a pitty that from this moment on we have to use this
2606 * local heap, because applications may rely on the handle
2607 * in the future.
2608 *
2609 * In this function we'll try to switch to local heap.
2610 */
2611 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2612 {
2613 CHAR *textA;
2614 UINT countA, alloc_size;
2615 STACK16FRAME* stack16;
2616 HANDLE16 oldDS;
2617
2618 if (!(es->style & ES_MULTILINE))
2619 return 0;
2620
2621 if (es->hloc16)
2622 return es->hloc16;
2623
2624 stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
2625 oldDS = stack16->ds;
2626 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2627
2628 if (!LocalHeapSize16()) {
2629
2630 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2631 ERR("could not initialize local heap\n");
2632 goto done;
2633 }
2634 TRACE("local heap initialized\n");
2635 }
2636
2637 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2638 alloc_size = ROUND_TO_GROW(countA);
2639
2640 TRACE("Allocating 16-bit ANSI alias buffer\n");
2641 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2642 ERR("could not allocate new 16 bit buffer\n");
2643 goto done;
2644 }
2645
2646 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2647 ERR("could not lock new 16 bit buffer\n");
2648 LocalFree16(es->hloc16);
2649 es->hloc16 = 0;
2650 goto done;
2651 }
2652
2653 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2654 LocalUnlock16(es->hloc16);
2655
2656 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2657
2658 done:
2659 stack16->ds = oldDS;
2660 return es->hloc16;
2661 }
2662
2663
2664 /*********************************************************************
2665 *
2666 * EM_GETLINE
2667 *
2668 */
2669 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2670 {
2671 LPWSTR src;
2672 INT line_len, dst_len;
2673 INT i;
2674
2675 if (es->style & ES_MULTILINE) {
2676 if (line >= es->line_count)
2677 return 0;
2678 } else
2679 line = 0;
2680 i = EDIT_EM_LineIndex(es, line);
2681 src = es->text + i;
2682 line_len = EDIT_EM_LineLength(es, i);
2683 dst_len = *(WORD *)dst;
2684 if(unicode)
2685 {
2686 if(dst_len <= line_len)
2687 {
2688 memcpy(dst, src, dst_len * sizeof(WCHAR));
2689 return dst_len;
2690 }
2691 else /* Append 0 if enough space */
2692 {
2693 memcpy(dst, src, line_len * sizeof(WCHAR));
2694 dst[line_len] = 0;
2695 return line_len;
2696 }
2697 }
2698 else
2699 {
2700 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2701 if(!ret) /* Insufficient buffer size */
2702 return dst_len;
2703 if(ret < dst_len) /* Append 0 if enough space */
2704 ((LPSTR)dst)[ret] = 0;
2705 return ret;
2706 }
2707 }
2708
2709
2710 /*********************************************************************
2711 *
2712 * EM_GETSEL
2713 *
2714 */
2715 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2716 {
2717 UINT s = es->selection_start;
2718 UINT e = es->selection_end;
2719
2720 ORDER_UINT(s, e);
2721 if (start)
2722 *start = s;
2723 if (end)
2724 *end = e;
2725 return MAKELONG(s, e);
2726 }
2727
2728
2729 /*********************************************************************
2730 *
2731 * EM_GETTHUMB
2732 *
2733 * FIXME: is this right ? (or should it be only VSCROLL)
2734 * (and maybe only for edit controls that really have their
2735 * own scrollbars) (and maybe only for multiline controls ?)
2736 * All in all: very poorly documented
2737 *
2738 */
2739 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2740 {
2741 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2742 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2743 }
2744
2745
2746 /*********************************************************************
2747 *
2748 * EM_LINEFROMCHAR
2749 *
2750 */
2751 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2752 {
2753 INT line;
2754 LINEDEF *line_def;
2755
2756 if (!(es->style & ES_MULTILINE))
2757 return 0;
2758 if (index > (INT)strlenW(es->text))
2759 return es->line_count - 1;
2760 if (index == -1)
2761 index = min(es->selection_start, es->selection_end);
2762
2763 line = 0;
2764 line_def = es->first_line_def;
2765 index -= line_def->length;
2766 while ((index >= 0) && line_def->next) {
2767 line++;
2768 line_def = line_def->next;
2769 index -= line_def->length;
2770 }
2771 return line;
2772 }
2773
2774
2775 /*********************************************************************
2776 *
2777 * EM_LINEINDEX
2778 *
2779 */
2780 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2781 {
2782 INT line_index;
2783 LINEDEF *line_def;
2784
2785 if (!(es->style & ES_MULTILINE))
2786 return 0;
2787 if (line >= es->line_count)
2788 return -1;
2789
2790 line_index = 0;
2791 line_def = es->first_line_def;
2792 if (line == -1) {
2793 INT index = es->selection_end - line_def->length;
2794 while ((index >= 0) && line_def->next) {
2795 line_index += line_def->length;
2796 line_def = line_def->next;
2797 index -= line_def->length;
2798 }
2799 } else {
2800 while (line > 0) {
2801 line_index += line_def->length;
2802 line_def = line_def->next;
2803 line--;
2804 }
2805 }
2806 return line_index;
2807 }
2808
2809
2810 /*********************************************************************
2811 *
2812 * EM_LINELENGTH
2813 *
2814 */
2815 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2816 {
2817 LINEDEF *line_def;
2818
2819 if (!(es->style & ES_MULTILINE))
2820 return strlenW(es->text);
2821
2822 if (index == -1) {
2823 /* get the number of remaining non-selected chars of selected lines */
2824 INT32 l; /* line number */
2825 INT32 li; /* index of first char in line */
2826 INT32 count;
2827 l = EDIT_EM_LineFromChar(es, es->selection_start);
2828 /* # chars before start of selection area */
2829 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2830 l = EDIT_EM_LineFromChar(es, es->selection_end);
2831 /* # chars after end of selection */
2832 li = EDIT_EM_LineIndex(es, l);
2833 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2834 return count;
2835 }
2836 line_def = es->first_line_def;
2837 index -= line_def->length;
2838 while ((index >= 0) && line_def->next) {
2839 line_def = line_def->next;
2840 index -= line_def->length;
2841 }
2842 return line_def->net_length;
2843 }
2844
2845
2846 /*********************************************************************
2847 *
2848 * EM_LINESCROLL
2849 *
2850 * NOTE: dx is in average character widths, dy - in lines;
2851 *
2852 */
2853 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2854 {
2855 if (!(es->style & ES_MULTILINE))
2856 return FALSE;
2857
2858 dx *= es->char_width;
2859 return EDIT_EM_LineScroll_internal(es, dx, dy);
2860 }
2861
2862 /*********************************************************************
2863 *
2864 * EDIT_EM_LineScroll_internal
2865 *
2866 * Version of EDIT_EM_LineScroll for internal use.
2867 * It doesn't refuse if ES_MULTILINE is set and assumes that
2868 * dx is in pixels, dy - in lines.
2869 *
2870 */
2871 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2872 {
2873 INT nyoff;
2874 INT x_offset_in_pixels;
2875 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
2876 es->line_height;
2877
2878 if (es->style & ES_MULTILINE)
2879 {
2880 x_offset_in_pixels = es->x_offset;
2881 }
2882 else
2883 {
2884 dy = 0;
2885 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2886 }
2887
2888 if (-dx > x_offset_in_pixels)
2889 dx = -x_offset_in_pixels;
2890 if (dx > es->text_width - x_offset_in_pixels)
2891 dx = es->text_width - x_offset_in_pixels;
2892 nyoff = max(0, es->y_offset + dy);
2893 if (nyoff >= es->line_count - lines_per_page)
2894 nyoff = max(0, es->line_count - lines_per_page);
2895 dy = (es->y_offset - nyoff) * es->line_height;
2896 if (dx || dy) {
2897 RECT rc1;
2898 RECT rc;
2899
2900 es->y_offset = nyoff;
2901 if(es->style & ES_MULTILINE)
2902 es->x_offset += dx;
2903 else
2904 es->x_offset += dx / es->char_width;
2905
2906 GetClientRect(es->hwndSelf, &rc1);
2907 IntersectRect(&rc, &rc1, &es->format_rect);
2908 ScrollWindowEx(es->hwndSelf, -dx, dy,
2909 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2910 /* force scroll info update */
2911 EDIT_UpdateScrollInfo(es);
2912 }
2913 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2914 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2915 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2916 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2917 return TRUE;
2918 }
2919
2920
2921 /*********************************************************************
2922 *
2923 * EM_POSFROMCHAR
2924 *
2925 */
2926 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2927 {
2928 INT len = strlenW(es->text);
2929 INT l;
2930 INT li;
2931 INT x;
2932 INT y = 0;
2933 INT w;
2934 INT lw = 0;
2935 INT ll = 0;
2936 HDC dc;
2937 HFONT old_font = 0;
2938 SIZE size;
2939 LINEDEF *line_def;
2940
2941 index = min(index, len);
2942 dc = GetDC(es->hwndSelf);
2943 if (es->font)
2944 old_font = SelectObject(dc, es->font);
2945 if (es->style & ES_MULTILINE) {
2946 l = EDIT_EM_LineFromChar(es, index);
2947 y = (l - es->y_offset) * es->line_height;
2948 li = EDIT_EM_LineIndex(es, l);
2949 if (after_wrap && (li == index) && l) {
2950 INT l2 = l - 1;
2951 line_def = es->first_line_def;
2952 while (l2) {
2953 line_def = line_def->next;
2954 l2--;
2955 }
2956 if (line_def->ending == END_WRAP) {
2957 l--;
2958 y -= es->line_height;
2959 li = EDIT_EM_LineIndex(es, l);
2960 }
2961 }
2962
2963 line_def = es->first_line_def;
2964 while (line_def->index != li)
2965 line_def = line_def->next;
2966
2967 ll = line_def->net_length;
2968 lw = line_def->width;
2969
2970 w = es->format_rect.right - es->format_rect.left;
2971 if (es->style & ES_RIGHT)
2972 {
2973 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
2974 es->tabs_count, es->tabs)) - es->x_offset;
2975 x = w - x;
2976 }
2977 else if (es->style & ES_CENTER)
2978 {
2979 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2980 es->tabs_count, es->tabs)) - es->x_offset;
2981 x += (w - lw) / 2;
2982 }
2983 else /* ES_LEFT */
2984 {
2985 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2986 es->tabs_count, es->tabs)) - es->x_offset;
2987 }
2988 } else {
2989 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2990 if (index < es->x_offset) {
2991 GetTextExtentPoint32W(dc, text + index,
2992 es->x_offset - index, &size);
2993 x = -size.cx;
2994 } else {
2995 GetTextExtentPoint32W(dc, text + es->x_offset,
2996 index - es->x_offset, &size);
2997 x = size.cx;
2998
2999 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3000 {
3001 w = es->format_rect.right - es->format_rect.left;
3002 if (w > es->text_width)
3003 {
3004 if (es->style & ES_RIGHT)
3005 x += w - es->text_width;
3006 else if (es->style & ES_CENTER)
3007 x += (w - es->text_width) / 2;
3008 }
3009 }
3010 }
3011 y = 0;
3012 if (es->style & ES_PASSWORD)
3013 HeapFree(GetProcessHeap(), 0, text);
3014 }
3015 x += es->format_rect.left;
3016 y += es->format_rect.top;
3017 if (es->font)
3018 SelectObject(dc, old_font);
3019 ReleaseDC(es->hwndSelf, dc);
3020 return MAKELONG((INT16)x, (INT16)y);
3021 }
3022
3023
3024 /*********************************************************************
3025 *
3026 * EM_REPLACESEL
3027 *
3028 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3029 *
3030 */
3031 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3032 {
3033 UINT strl = strlenW(lpsz_replace);
3034 UINT tl = strlenW(es->text);
3035 UINT utl;
3036 UINT s;
3037 UINT e;
3038 UINT i;
3039 UINT size;
3040 LPWSTR p;
3041 HRGN hrgn = 0;
3042 LPWSTR buf = NULL;
3043 UINT bufl = 0;
3044
3045 TRACE("%s, can_undo %d, send_update %d\n",
3046 debugstr_w(lpsz_replace), can_undo, send_update);
3047
3048 s = es->selection_start;
3049 e = es->selection_end;
3050
3051 if ((s == e) && !strl)
3052 return;
3053
3054 ORDER_UINT(s, e);
3055
3056 size = tl - (e - s) + strl;
3057 if (!size)
3058 es->text_width = 0;
3059
3060 /* Issue the EN_MAXTEXT notification and continue with replacing text
3061 * such that buffer limit is honored. */
3062 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
3063 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
3064 strl = es->buffer_limit - (tl - (e-s));
3065 }
3066
3067 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3068 return;
3069
3070 if (e != s) {
3071 /* there is something to be deleted */
3072 TRACE("deleting stuff.\n");
3073 bufl = e - s;
3074 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3075 if (!buf) return;
3076 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3077 buf[bufl] = 0; /* ensure 0 termination */
3078 /* now delete */
3079 strcpyW(es->text + s, es->text + e);
3080 }
3081 if (strl) {
3082 /* there is an insertion */
3083 tl = strlenW(es->text);
3084 TRACE("inserting stuff (tl %d, strl %d, selstart %d ('%s'), text '%s')\n", tl, strl, s, debugstr_w(es->text + s), debugstr_w(es->text));
3085 for (p = es->text + tl ; p >= es->text + s ; p--)
3086 p[strl] = p[0];
3087 for (i = 0 , p = es->text + s ; i < strl ; i++)
3088 p[i] = lpsz_replace[i];
3089 if(es->style & ES_UPPERCASE)
3090 CharUpperBuffW(p, strl);
3091 else if(es->style & ES_LOWERCASE)
3092 CharLowerBuffW(p, strl);
3093 }
3094 if (es->style & ES_MULTILINE)
3095 {
3096 INT st = min(es->selection_start, es->selection_end);
3097 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3098
3099 hrgn = CreateRectRgn(0, 0, 0, 0);
3100 EDIT_BuildLineDefs_ML(es, st, st + strl,
3101 strl - abs(es->selection_end - es->selection_start), hrgn);
3102 /* if text is too long undo all changes */
3103 if (!(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3104 if (strl)
3105 strcpyW(es->text + e, es->text + e + strl);
3106 if (e != s)
3107 for (i = 0 , p = es->text ; i < e - s ; i++)
3108 p[i + s] = buf[i];
3109 EDIT_BuildLineDefs_ML(es, s, e,
3110 abs(es->selection_end - es->selection_start) - strl, hrgn);
3111 strl = 0;
3112 e = s;
3113 hrgn = CreateRectRgn(0, 0, 0, 0);
3114 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
3115 }
3116 }
3117 else {
3118 INT fw = es->format_rect.right - es->format_rect.left;
3119 EDIT_CalcLineWidth_SL(es);
3120 /* remove chars that don't fit */
3121 if (!(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3122 while ((es->text_width > fw) && s + strl >= s) {
3123 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3124 strl--;
3125 EDIT_CalcLineWidth_SL(es);
3126 }
3127 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
3128 }
3129 }
3130
3131 if (e != s) {
3132 if (can_undo) {
3133 utl = strlenW(es->undo_text);
3134 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3135 /* undo-buffer is extended to the right */
3136 EDIT_MakeUndoFit(es, utl + e - s);
3137 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3138 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3139 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3140 /* undo-buffer is extended to the left */
3141 EDIT_MakeUndoFit(es, utl + e - s);
3142 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3143 p[e - s] = p[0];
3144 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3145 p[i] = buf[i];
3146 es->undo_position = s;
3147 } else {
3148 /* new undo-buffer */
3149 EDIT_MakeUndoFit(es, e - s);
3150 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3151 es->undo_text[e - s] = 0; /* ensure 0 termination */
3152 es->undo_position = s;
3153 }
3154 /* any deletion makes the old insertion-undo invalid */
3155 es->undo_insert_count = 0;
3156 } else
3157 EDIT_EM_EmptyUndoBuffer(es);
3158 }
3159 if (strl) {
3160 if (can_undo) {
3161 if ((s == es->undo_position) ||
3162 ((es->undo_insert_count) &&
3163 (s == es->undo_position + es->undo_insert_count)))
3164 /*
3165 * insertion is new and at delete position or
3166 * an extension to either left or right
3167 */
3168 es->undo_insert_count += strl;
3169 else {
3170 /* new insertion undo */
3171 es->undo_position = s;
3172 es->undo_insert_count = strl;
3173 /* new insertion makes old delete-buffer invalid */
3174 *es->undo_text = '\0';
3175 }
3176 } else
3177 EDIT_EM_EmptyUndoBuffer(es);
3178 }
3179
3180 if (bufl)
3181 HeapFree(GetProcessHeap(), 0, buf);
3182
3183 s += strl;
3184
3185 /* If text has been deleted and we're right or center aligned then scroll rightward */
3186 if (es->style & (ES_RIGHT | ES_CENTER))
3187 {
3188 INT delta = strl - abs(es->selection_end - es->selection_start);
3189
3190 if (delta < 0 && es->x_offset)
3191 {
3192 if (abs(delta) > es->x_offset)
3193 es->x_offset = 0;
3194 else
3195 es->x_offset += delta;
3196 }
3197 }
3198
3199 EDIT_EM_SetSel(es, s, s, FALSE);
3200 es->flags |= EF_MODIFIED;
3201 if (send_update) es->flags |= EF_UPDATE;
3202 if (hrgn)
3203 {
3204 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3205 DeleteObject(hrgn);
3206 }
3207 else
3208 EDIT_UpdateText(es, NULL, TRUE);
3209
3210 EDIT_EM_ScrollCaret(es);
3211
3212 /* force scroll info update */
3213 EDIT_UpdateScrollInfo(es);
3214
3215
3216 if(send_update || (es->flags & EF_UPDATE))
3217 {
3218 es->flags &= ~EF_UPDATE;
3219 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3220 }
3221 }
3222
3223
3224 /*********************************************************************
3225 *
3226 * EM_SCROLL
3227 *
3228 */
3229 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3230 {
3231 INT dy;
3232
3233 if (!(es->style & ES_MULTILINE))
3234 return (LRESULT)FALSE;
3235
3236 dy = 0;
3237
3238 switch (action) {
3239 case SB_LINEUP:
3240 if (es->y_offset)
3241 dy = -1;
3242 break;
3243 case SB_LINEDOWN:
3244 if (es->y_offset < es->line_count - 1)
3245 dy = 1;
3246 break;
3247 case SB_PAGEUP:
3248 if (es->y_offset)
3249 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3250 break;
3251 case SB_PAGEDOWN:
3252 if (es->y_offset < es->line_count - 1)
3253 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3254 break;
3255 default:
3256 return (LRESULT)FALSE;
3257 }
3258 if (dy) {
3259 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3260 /* check if we are going to move too far */
3261 if(es->y_offset + dy > es->line_count - vlc)
3262 dy = es->line_count - vlc - es->y_offset;
3263
3264 /* Notification is done in EDIT_EM_LineScroll */
3265 if(dy)
3266 EDIT_EM_LineScroll(es, 0, dy);
3267 }
3268 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3269 }
3270
3271
3272 /*********************************************************************
3273 *
3274 * EM_SCROLLCARET
3275 *
3276 */
3277 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3278 {
3279 if (es->style & ES_MULTILINE) {
3280 INT l;
3281 INT li;
3282 INT vlc;
3283 INT ww;
3284 INT cw = es->char_width;
3285 INT x;
3286 INT dy = 0;
3287 INT dx = 0;
3288
3289 l = EDIT_EM_LineFromChar(es, es->selection_end);
3290 li = EDIT_EM_LineIndex(es, l);
3291 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3292 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3293 if (l >= es->y_offset + vlc)
3294 dy = l - vlc + 1 - es->y_offset;
3295 if (l < es->y_offset)
3296 dy = l - es->y_offset;
3297 ww = es->format_rect.right - es->format_rect.left;
3298 if (x < es->format_rect.left)
3299 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3300 if (x > es->format_rect.right)
3301 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3302 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3303 {
3304 /* check if we are going to move too far */
3305 if(es->x_offset + dx + ww > es->text_width)
3306 dx = es->text_width - ww - es->x_offset;
3307 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3308 EDIT_EM_LineScroll_internal(es, dx, dy);
3309 }
3310 } else {
3311 INT x;
3312 INT goal;
3313 INT format_width;
3314
3315 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3316 format_width = es->format_rect.right - es->format_rect.left;
3317 if (x < es->format_rect.left) {
3318 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3319 do {
3320 es->x_offset--;
3321 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3322 } while ((x < goal) && es->x_offset);
3323 /* FIXME: use ScrollWindow() somehow to improve performance */
3324 EDIT_UpdateText(es, NULL, TRUE);
3325 } else if (x > es->format_rect.right) {
3326 INT x_last;
3327 INT len = strlenW(es->text);
3328 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3329 do {
3330 es->x_offset++;
3331 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3332 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3333 } while ((x > goal) && (x_last > es->format_rect.right));
3334 /* FIXME: use ScrollWindow() somehow to improve performance */
3335 EDIT_UpdateText(es, NULL, TRUE);
3336 }
3337 }
3338
3339 if(es->flags & EF_FOCUSED)
3340 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3341 }
3342
3343
3344 /*********************************************************************
3345 *
3346 * EM_SETHANDLE
3347 *
3348 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3349 *
3350 */
3351 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3352 {
3353 if (!(es->style & ES_MULTILINE))
3354 return;
3355
3356 if (!hloc) {
3357 WARN("called with NULL handle\n");
3358 return;
3359 }
3360
3361 EDIT_UnlockBuffer(es, TRUE);
3362
3363 if(es->hloc16)
3364 {
3365 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
3366 HANDLE16 oldDS = stack16->ds;
3367
3368 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3369 LocalFree16(es->hloc16);
3370 stack16->ds = oldDS;
3371 es->hloc16 = 0;
3372 }
3373
3374 if(es->is_unicode)
3375 {
3376 if(es->hloc32A)
3377 {
3378 LocalFree(es->hloc32A);
3379 es->hloc32A = NULL;
3380 }
3381 es->hloc32W = hloc;
3382 }
3383 else
3384 {
3385 INT countW, countA;
3386 HLOCAL hloc32W_new;
3387 WCHAR *textW;
3388 CHAR *textA;
3389
3390 countA = LocalSize(hloc);
3391 textA = LocalLock(hloc);
3392 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3393 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3394 {
3395 ERR("Could not allocate new unicode buffer\n");
3396 return;
3397 }
3398 textW = LocalLock(hloc32W_new);
3399 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3400 LocalUnlock(hloc32W_new);
3401 LocalUnlock(hloc);
3402
3403 if(es->hloc32W)
3404 LocalFree(es->hloc32W);
3405
3406 es->hloc32W = hloc32W_new;
3407 es->hloc32A = hloc;
3408 }
3409
3410 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3411
3412 EDIT_LockBuffer(es);
3413
3414 es->x_offset = es->y_offset = 0;
3415 es->selection_start = es->selection_end = 0;
3416 EDIT_EM_EmptyUndoBuffer(es);
3417 es->flags &= ~EF_MODIFIED;
3418 es->flags &= ~EF_UPDATE;
3419 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3420 EDIT_UpdateText(es, NULL, TRUE);
3421 EDIT_EM_ScrollCaret(es);
3422 /* force scroll info update */
3423 EDIT_UpdateScrollInfo(es);
3424 }
3425
3426
3427 /*********************************************************************
3428 *
3429 * EM_SETHANDLE16
3430 *
3431 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3432 *
3433 */
3434 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3435 {
3436 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
3437 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3438 HANDLE16 oldDS = stack16->ds;
3439 INT countW, countA;
3440 HLOCAL hloc32W_new;
3441 WCHAR *textW;
3442 CHAR *textA;
3443
3444 if (!(es->style & ES_MULTILINE))
3445 return;
3446
3447 if (!hloc) {
3448 WARN("called with NULL handle\n");
3449 return;
3450 }
3451
3452 EDIT_UnlockBuffer(es, TRUE);
3453
3454 if(es->hloc32A)
3455 {
3456 LocalFree(es->hloc32A);
3457 es->hloc32A = NULL;
3458 }
3459
3460 stack16->ds = hInstance;
3461 countA = LocalSize16(hloc);
3462 textA = MapSL(LocalLock16(hloc));
3463 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3464 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3465 {
3466 ERR("Could not allocate new unicode buffer\n");
3467 return;
3468 }
3469 textW = LocalLock(hloc32W_new);
3470 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3471 LocalUnlock(hloc32W_new);
3472 LocalUnlock16(hloc);
3473 stack16->ds = oldDS;
3474
3475 if(es->hloc32W)
3476 LocalFree(es->hloc32W);
3477
3478 es->hloc32W = hloc32W_new;
3479 es->hloc16 = hloc;
3480
3481 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3482
3483 EDIT_LockBuffer(es);
3484
3485 es->x_offset = es->y_offset = 0;
3486 es->selection_start = es->selection_end = 0;
3487 EDIT_EM_EmptyUndoBuffer(es);
3488 es->flags &= ~EF_MODIFIED;
3489 es->flags &= ~EF_UPDATE;
3490 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3491 EDIT_UpdateText(es, NULL, TRUE);
3492 EDIT_EM_ScrollCaret(es);
3493 /* force scroll info update */
3494 EDIT_UpdateScrollInfo(es);
3495 }
3496
3497
3498 /*********************************************************************
3499 *
3500 * EM_SETLIMITTEXT
3501 *
3502 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3503 * However, the windows version is not complied to yet in all of edit.c
3504 *
3505 * Additionally as the wrapper for RichEdit controls we need larger buffers
3506 * at present -1 will represent nolimit
3507 */
3508 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3509 {
3510 if (limit == 0xFFFFFFFF)
3511 es->buffer_limit = -1;
3512 else if (es->style & ES_MULTILINE) {
3513 if (limit)
3514 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3515 else
3516 es->buffer_limit = BUFLIMIT_MULTI;
3517 } else {
3518 if (limit)
3519 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3520 else
3521 es->buffer_limit = BUFLIMIT_SINGLE;
3522 }
3523 }
3524
3525
3526 /*********************************************************************
3527 *
3528 * EM_SETMARGINS
3529 *
3530 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3531 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3532 * margin according to the textmetrics of the current font.
3533 *
3534 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3535 * of the char's width as the margin, but this is not how Windows handles this.
3536 * For all other fonts Windows sets the margins to zero.
3537 *
3538 */
3539 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3540 INT left, INT right)
3541 {
3542 TEXTMETRICW tm;
3543 INT default_left_margin = 0; /* in pixels */
3544 INT default_right_margin = 0; /* in pixels */
3545
3546 /* Set the default margins depending on the font */
3547 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3548 HDC dc = GetDC(es->hwndSelf);
3549 HFONT old_font = SelectObject(dc, es->font);
3550 GetTextMetricsW(dc, &tm);
3551 /* The default margins are only non zero for TrueType or Vector fonts */
3552 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3553 /* This must be calculated more exactly! But how? */
3554 default_left_margin = tm.tmAveCharWidth / 3;
3555 default_right_margin = tm.tmAveCharWidth / 3;
3556 }
3557 SelectObject(dc, old_font);
3558 ReleaseDC(es->hwndSelf, dc);
3559 }
3560
3561 if (action & EC_LEFTMARGIN) {
3562 if (left != EC_USEFONTINFO)
3563 es->left_margin = left;
3564 else
3565 es->left_margin = default_left_margin;
3566 }
3567
3568 if (action & EC_RIGHTMARGIN) {
3569 if (right != EC_USEFONTINFO)
3570 es->right_margin = right;
3571 else
3572 es->right_margin = default_right_margin;
3573 }
3574 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3575 }
3576
3577
3578 /*********************************************************************
3579 *
3580 * EM_SETPASSWORDCHAR
3581 *
3582 */
3583 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3584 {
3585 LONG style;
3586
3587 if (es->style & ES_MULTILINE)
3588 return;
3589
3590 if (es->password_char == c)
3591 return;
3592
3593 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3594 es->password_char = c;
3595 if (c) {
3596 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3597 es->style |= ES_PASSWORD;
3598 } else {
3599 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3600 es->style &= ~ES_PASSWORD;
3601 }
3602 EDIT_UpdateText(es, NULL, TRUE);
3603 }
3604
3605
3606 /*********************************************************************
3607 *
3608 * EDIT_EM_SetSel
3609 *
3610 * note: unlike the specs say: the order of start and end
3611 * _is_ preserved in Windows. (i.e. start can be > end)
3612 * In other words: this handler is OK
3613 *
3614 */
3615 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3616 {
3617 UINT old_start = es->selection_start;
3618 UINT old_end = es->selection_end;
3619 UINT len = strlenW(es->text);
3620
3621 if (start == (UINT)-1) {
3622 start = es->selection_end;
3623 end = es->selection_end;
3624 } else {
3625 start = min(start, len);
3626 end = min(end, len);
3627 }
3628 es->selection_start = start;
3629 es->selection_end = end;
3630 if (after_wrap)
3631 es->flags |= EF_AFTER_WRAP;
3632 else
3633 es->flags &= ~EF_AFTER_WRAP;
3634 /* Compute the necessary invalidation region. */
3635 /* Note that we don't need to invalidate regions which have
3636 * "never" been selected, or those which are "still" selected.
3637 * In fact, every time we hit a selection boundary, we can
3638 * *toggle* whether we need to invalidate. Thus we can optimize by
3639 * *sorting* the interval endpoints. Let's assume that we sort them
3640 * in this order:
3641 * start <= end <= old_start <= old_end
3642 * Knuth 5.3.1 (p 183) asssures us that this can be done optimally
3643 * in 5 comparisons; ie it's impossible to do better than the
3644 * following: */
3645 ORDER_UINT(end, old_end);
3646 ORDER_UINT(start, old_start);
3647 ORDER_UINT(old_start, old_end);
3648 ORDER_UINT(start, end);
3649 /* Note that at this point 'end' and 'old_start' are not in order, but
3650 * start is definitely the min. and old_end is definitely the max. */
3651 if (end != old_start)
3652 {
3653 /*
3654 * One can also do
3655 * ORDER_UINT32(end, old_start);
3656 * EDIT_InvalidateText(es, start, end);
3657 * EDIT_InvalidateText(es, old_start, old_end);
3658 * in place of the following if statement.
3659 * (That would complete the optimal five-comparison four-element sort.)
3660 */
3661 if (old_start > end )
3662 {
3663 EDIT_InvalidateText(es, start, end);
3664 EDIT_InvalidateText(es, old_start, old_end);
3665 }
3666 else
3667 {
3668 EDIT_InvalidateText(es, start, old_start);
3669 EDIT_InvalidateText(es, end, old_end);
3670 }
3671 }
3672 else EDIT_InvalidateText(es, start, old_end);
3673 }
3674
3675
3676 /*********************************************************************
3677 *
3678 * EM_SETTABSTOPS
3679 *
3680 */
3681 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3682 {
3683 if (!(es->style & ES_MULTILINE))
3684 return FALSE;
3685 HeapFree(GetProcessHeap(), 0, es->tabs);
3686 es->tabs_count = count;
3687 if (!count)
3688 es->tabs = NULL;
3689 else {
3690 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3691 memcpy(es->tabs, tabs, count * sizeof(INT));
3692 }
3693 return TRUE;
3694 }
3695
3696
3697 /*********************************************************************
3698 *
3699 * EM_SETTABSTOPS16
3700 *
3701 */
3702 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3703 {
3704 if (!(es->style & ES_MULTILINE))
3705 return FALSE;
3706 HeapFree(GetProcessHeap(), 0, es->tabs);
3707 es->tabs_count = count;
3708 if (!count)
3709 es->tabs = NULL;
3710 else {
3711 INT i;
3712 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3713 for (i = 0 ; i < count ; i++)
3714 es->tabs[i] = *tabs++;
3715 }
3716 return TRUE;
3717 }
3718
3719
3720 /*********************************************************************
3721 *
3722 * EM_SETWORDBREAKPROC
3723 *
3724 */
3725 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3726 {
3727 if (es->word_break_proc == wbp)
3728 return;
3729
3730 es->word_break_proc = wbp;
3731 es->word_break_proc16 = NULL;
3732
3733 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3734 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3735 EDIT_UpdateText(es, NULL, TRUE);
3736 }
3737 }
3738
3739
3740 /*********************************************************************
3741 *
3742 * EM_SETWORDBREAKPROC16
3743 *
3744 */
3745 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3746 {
3747 if (es->word_break_proc16 == wbp)
3748 return;
3749
3750 es->word_break_proc = NULL;
3751 es->word_break_proc16 = wbp;
3752 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3753 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3754 EDIT_UpdateText(es, NULL, TRUE);
3755 }
3756 }
3757
3758
3759 /*********************************************************************
3760 *
3761 * EM_UNDO / WM_UNDO
3762 *
3763 */
3764 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3765 {
3766 INT ulength;
3767 LPWSTR utext;
3768
3769 /* As per MSDN spec, for a single-line edit control,
3770 the return value is always TRUE */
3771 if( es->style & ES_READONLY )
3772 return !(es->style & ES_MULTILINE);
3773
3774 ulength = strlenW(es->undo_text);
3775
3776 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3777
3778 strcpyW(utext, es->undo_text);
3779
3780 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3781 es->undo_insert_count, debugstr_w(utext));
3782
3783 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3784 EDIT_EM_EmptyUndoBuffer(es);
3785 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3786 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3787 /* send the notification after the selection start and end are set */
3788 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3789 EDIT_EM_ScrollCaret(es);
3790 HeapFree(GetProcessHeap(), 0, utext);
3791
3792 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3793 es->undo_insert_count, debugstr_w(es->undo_text));
3794 return TRUE;
3795 }
3796
3797
3798 /*********************************************************************
3799 *
3800 * WM_CHAR
3801 *
3802 */
3803 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3804 {
3805 BOOL control;
3806
3807 control = GetKeyState(VK_CONTROL) & 0x8000;
3808
3809 switch (c) {
3810 case '\r':
3811 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3812 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3813 break;
3814 case '\n':
3815 if (es->style & ES_MULTILINE) {
3816 if (es->style & ES_READONLY) {
3817 EDIT_MoveHome(es, FALSE);
3818 EDIT_MoveDown_ML(es, FALSE);
3819 } else {
3820 static const WCHAR cr_lfW[] = {'\r','\n',0};
3821 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3822 }
3823 }
3824 break;
3825 case '\t':
3826 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3827 {
3828 static const WCHAR tabW[] = {'\t',0};
3829 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3830 }
3831 break;
3832 case VK_BACK:
3833 if (!(es->style & ES_READONLY) && !control) {
3834 if (es->selection_start != es->selection_end)
3835 EDIT_WM_Clear(es);
3836 else {
3837 /* delete character left of caret */
3838 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3839 EDIT_MoveBackward(es, TRUE);
3840 EDIT_WM_Clear(es);
3841 }
3842 }
3843 break;
3844 case 0x03: /* ^C */
3845 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3846 break;
3847 case 0x16: /* ^V */
3848 if (!(es->style & ES_READONLY))
3849 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3850 break;
3851 case 0x18: /* ^X */
3852 if (!(es->style & ES_READONLY))
3853 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3854 break;
3855
3856 default:
3857 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3858 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3859 break;
3860
3861 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3862 WCHAR str[2];
3863 str[0] = c;
3864 str[1] = '\0';
3865 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3866 }
3867 break;
3868 }
3869 }
3870
3871
3872 /*********************************************************************
3873 *
3874 * WM_COMMAND
3875 *
3876 */
3877 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3878 {
3879 if (code || control)
3880 return;
3881
3882 switch (id) {
3883 case EM_UNDO:
3884 EDIT_EM_Undo(es);
3885 break;
3886 case WM_CUT:
3887 EDIT_WM_Cut(es);
3888 break;
3889 case WM_COPY:
3890 EDIT_WM_Copy(es);
3891 break;
3892 case WM_PASTE:
3893 EDIT_WM_Paste(es);
3894 break;
3895 case WM_CLEAR:
3896 EDIT_WM_Clear(es);
3897 break;
3898 case EM_SETSEL:
3899 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3900 EDIT_EM_ScrollCaret(es);
3901 break;
3902 default:
3903 ERR("unknown menu item, please report\n");
3904 break;
3905 }
3906 }
3907
3908
3909 /*********************************************************************
3910 *
3911 * WM_CONTEXTMENU
3912 *
3913 * Note: the resource files resource/sysres_??.rc cannot define a
3914 * single popup menu. Hence we use a (dummy) menubar
3915 * containing the single popup menu as its first item.
3916 *
3917 * FIXME: the message identifiers have been chosen arbitrarily,
3918 * hence we use MF_BYPOSITION.
3919 * We might as well use the "real" values (anybody knows ?)
3920 * The menu definition is in resources/sysres_??.rc.
3921 * Once these are OK, we better use MF_BYCOMMAND here
3922 * (as we do in EDIT_WM_Command()).
3923 *
3924 */
3925 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3926 {
3927 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3928 HMENU popup = GetSubMenu(menu, 0);
3929 UINT start = es->selection_start;
3930 UINT end = es->selection_end;
3931
3932 ORDER_UINT(start, end);
3933
3934 /* undo */
3935 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3936 /* cut */
3937 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3938 /* copy */
3939 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3940 /* paste */
3941 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3942 /* delete */
3943 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3944 /* select all */
3945 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3946
3947 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3948 DestroyMenu(menu);
3949 }
3950
3951
3952 /*********************************************************************
3953 *
3954 * WM_COPY
3955 *
3956 */
3957 static void EDIT_WM_Copy(EDITSTATE *es)
3958 {
3959 INT s = min(es->selection_start, es->selection_end);
3960 INT e = max(es->selection_start, es->selection_end);
3961 HGLOBAL hdst;
3962 LPWSTR dst;
3963 DWORD len;
3964
3965 if (e == s) return;
3966
3967 len = e - s;
3968 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
3969 dst = GlobalLock(hdst);
3970 memcpy(dst, es->text + s, len * sizeof(WCHAR));
3971 dst[len] = 0; /* ensure 0 termination */
3972 TRACE("%s\n", debugstr_w(dst));
3973 GlobalUnlock(hdst);
3974 OpenClipboard(es->hwndSelf);
3975 EmptyClipboard();
3976 SetClipboardData(CF_UNICODETEXT, hdst);
3977 CloseClipboard();
3978 }
3979
3980
3981 /*********************************************************************
3982 *
3983 * WM_CREATE
3984 *
3985 */
3986 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3987 {
3988 TRACE("%s\n", debugstr_w(name));
3989 /*
3990 * To initialize some final structure members, we call some helper
3991 * functions. However, since the EDITSTATE is not consistent (i.e.
3992 * not fully initialized), we should be very careful which
3993 * functions can be called, and in what order.
3994 */
3995 EDIT_WM_SetFont(es, 0, FALSE);
3996 EDIT_EM_EmptyUndoBuffer(es);
3997
3998 if (name && *name) {
3999 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
4000 /* if we insert text to the editline, the text scrolls out
4001 * of the window, as the caret is placed after the insert
4002 * pos normally; thus we reset es->selection... to 0 and
4003 * update caret
4004 */
4005 es->selection_start = es->selection_end = 0;
4006 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4007 * Messages are only to be sent when the USER does something to
4008 * change the contents. So I am removing this EN_CHANGE
4009 *
4010 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4011 */
4012 EDIT_EM_ScrollCaret(es);
4013 }
4014 /* force scroll info update */
4015 EDIT_UpdateScrollInfo(es);
4016 /* The rule seems to return 1 here for success */
4017 /* Power Builder masked edit controls will crash */
4018 /* if not. */
4019 /* FIXME: is that in all cases so ? */
4020 return 1;
4021 }
4022
4023
4024 /*********************************************************************
4025 *
4026 * WM_DESTROY
4027 *
4028 */
4029 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4030 {
4031 LINEDEF *pc, *pp;
4032
4033 if (es->hloc32W) {
4034 while (LocalUnlock(es->hloc32W)) ;
4035 LocalFree(es->hloc32W);
4036 }
4037 if (es->hloc32A) {
4038 while (LocalUnlock(es->hloc32A)) ;
4039 LocalFree(es->hloc32A);
4040 }
4041 if (es->hloc16) {
4042 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
4043 HANDLE16 oldDS = stack16->ds;
4044
4045 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4046 while (LocalUnlock16(es->hloc16)) ;
4047 LocalFree16(es->hloc16);
4048 stack16->ds = oldDS;
4049 }
4050
4051 pc = es->first_line_def;
4052 while (pc)
4053 {
4054 pp = pc->next;
4055 HeapFree(GetProcessHeap(), 0, pc);
4056 pc = pp;
4057 }
4058
4059 SetWindowLongW( es->hwndSelf, 0, 0 );
4060 HeapFree(GetProcessHeap(), 0, es);
4061
4062 return 0;
4063 }
4064
4065
4066 /*********************************************************************
4067 *
4068 * WM_ERASEBKGND
4069 *
4070 */
4071 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
4072 {
4073 /* we do the proper erase in EDIT_WM_Paint */
4074 return -1;
4075 }
4076
4077
4078 /*********************************************************************
4079 *
4080 * WM_GETTEXT
4081 *
4082 */
4083 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4084 {
4085 if(!count) return 0;
4086
4087 if(unicode)
4088 {
4089 lstrcpynW(dst, es->text, count);
4090 return strlenW(dst);
4091 }
4092 else
4093 {
4094 LPSTR textA = (LPSTR)dst;
4095 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4096 textA[count - 1] = 0; /* ensure 0 termination */
4097 return strlen(textA);
4098 }
4099 }
4100
4101 /*********************************************************************
4102 *
4103 * WM_HSCROLL
4104 *
4105 */
4106 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4107 {
4108 INT dx;
4109 INT fw;
4110
4111 if (!(es->style & ES_MULTILINE))
4112 return 0;
4113
4114 if (!(es->style & ES_AUTOHSCROLL))
4115 return 0;
4116
4117 dx = 0;
4118 fw = es->format_rect.right - es->format_rect.left;
4119 switch (action) {
4120 case SB_LINELEFT:
4121 TRACE("SB_LINELEFT\n");
4122 if (es->x_offset)
4123 dx = -es->char_width;
4124 break;
4125 case SB_LINERIGHT:
4126 TRACE("SB_LINERIGHT\n");
4127 if (es->x_offset < es->text_width)
4128 dx = es->char_width;
4129 break;
4130 case SB_PAGELEFT:
4131 TRACE("SB_PAGELEFT\n");
4132 if (es->x_offset)
4133 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4134 break;
4135 case SB_PAGERIGHT:
4136 TRACE("SB_PAGERIGHT\n");
4137 if (es->x_offset < es->text_width)
4138 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4139 break;
4140 case SB_LEFT:
4141 TRACE("SB_LEFT\n");
4142 if (es->x_offset)
4143 dx = -es->x_offset;
4144 break;
4145 case SB_RIGHT:
4146 TRACE("SB_RIGHT\n");
4147 if (es->x_offset < es->text_width)
4148 dx = es->text_width - es->x_offset;
4149 break;
4150 case SB_THUMBTRACK:
4151 TRACE("SB_THUMBTRACK %d\n", pos);
4152 es->flags |= EF_HSCROLL_TRACK;
4153 if(es->style & WS_HSCROLL)
4154 dx = pos - es->x_offset;
4155 else
4156 {
4157 INT fw, new_x;
4158 /* Sanity check */
4159 if(pos < 0 || pos > 100) return 0;
4160 /* Assume default scroll range 0-100 */
4161 fw = es->format_rect.right - es->format_rect.left;
4162 new_x = pos * (es->text_width - fw) / 100;
4163 dx = es->text_width ? (new_x - es->x_offset) : 0;
4164 }
4165 break;
4166 case SB_THUMBPOSITION:
4167 TRACE("SB_THUMBPOSITION %d\n", pos);
4168 es->flags &= ~EF_HSCROLL_TRACK;
4169 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4170 dx = pos - es->x_offset;
4171 else
4172 {
4173 INT fw, new_x;
4174 /* Sanity check */
4175 if(pos < 0 || pos > 100) return 0;
4176 /* Assume default scroll range 0-100 */
4177 fw = es->format_rect.right - es->format_rect.left;
4178 new_x = pos * (es->text_width - fw) / 100;
4179 dx = es->text_width ? (new_x - es->x_offset) : 0;
4180 }
4181 if (!dx) {
4182 /* force scroll info update */
4183 EDIT_UpdateScrollInfo(es);
4184 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
4185 }
4186 break;
4187 case SB_ENDSCROLL:
4188 TRACE("SB_ENDSCROLL\n");
4189 break;
4190 /*
4191 * FIXME : the next two are undocumented !
4192 * Are we doing the right thing ?
4193 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4194 * although it's also a regular control message.
4195 */
4196 case EM_GETTHUMB: /* this one is used by NT notepad */
4197 case EM_GETTHUMB16:
4198 {
4199 LRESULT ret;
4200 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4201 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4202 else
4203 {
4204 /* Assume default scroll range 0-100 */
4205 INT fw = es->format_rect.right - es->format_rect.left;
4206 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4207 }
4208 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4209 return ret;
4210 }
4211 case EM_LINESCROLL16:
4212 TRACE("EM_LINESCROLL16\n");
4213 dx = pos;
4214 break;
4215
4216 default:
4217 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4218 action, action);
4219 return 0;
4220 }
4221 if (dx)
4222 {
4223 INT fw = es->format_rect.right - es->format_rect.left;
4224 /* check if we are going to move too far */
4225 if(es->x_offset + dx + fw > es->text_width)
4226 dx = es->text_width - fw - es->x_offset;
4227 if(dx)
4228 EDIT_EM_LineScroll_internal(es, dx, 0);
4229 }
4230 return 0;
4231 }
4232
4233
4234 /*********************************************************************
4235 *
4236 * EDIT_CheckCombo
4237 *
4238 */
4239 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4240 {
4241 HWND hLBox = es->hwndListBox;
4242 HWND hCombo;
4243 BOOL bDropped;
4244 int nEUI;
4245
4246 if (!hLBox)
4247 return FALSE;
4248
4249 hCombo = GetParent(es->hwndSelf);
4250 bDropped = TRUE;
4251 nEUI = 0;
4252
4253 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4254
4255 if (key == VK_UP || key == VK_DOWN)
4256 {
4257 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4258 nEUI = 1;
4259
4260 if (msg == WM_KEYDOWN || nEUI)
4261 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4262 }
4263
4264 switch (msg)
4265 {
4266 case WM_KEYDOWN:
4267 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4268 {
4269 /* make sure ComboLBox pops up */
4270 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4271 key = VK_F4;
4272 nEUI = 2;
4273 }
4274
4275 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4276 break;
4277
4278 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4279 if (nEUI)
4280 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4281 else
4282 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4283 break;
4284 }
4285
4286 if(nEUI == 2)
4287 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4288
4289 return TRUE;
4290 }
4291
4292
4293 /*********************************************************************
4294 *
4295 * WM_KEYDOWN
4296 *
4297 * Handling of special keys that don't produce a WM_CHAR
4298 * (i.e. non-printable keys) & Backspace & Delete
4299 *
4300 */
4301 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4302 {
4303 BOOL shift;
4304 BOOL control;
4305
4306 if (GetKeyState(VK_MENU) & 0x8000)
4307 return 0;
4308
4309 shift = GetKeyState(VK_SHIFT) & 0x8000;
4310 control = GetKeyState(VK_CONTROL) & 0x8000;
4311
4312 switch (key) {
4313 case VK_F4:
4314 case VK_UP:
4315 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4316 break;
4317
4318 /* fall through */
4319 case VK_LEFT:
4320 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4321 EDIT_MoveUp_ML(es, shift);
4322 else
4323 if (control)
4324 EDIT_MoveWordBackward(es, shift);
4325 else
4326 EDIT_MoveBackward(es, shift);
4327 break;
4328 case VK_DOWN:
4329 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4330 break;
4331 /* fall through */
4332 case VK_RIGHT:
4333 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4334 EDIT_MoveDown_ML(es, shift);
4335 else if (control)
4336 EDIT_MoveWordForward(es, shift);
4337 else
4338 EDIT_MoveForward(es, shift);
4339 break;
4340 case VK_HOME:
4341 EDIT_MoveHome(es, shift);
4342 break;
4343 case VK_END:
4344 EDIT_MoveEnd(es, shift);
4345 break;
4346 case VK_PRIOR:
4347 if (es->style & ES_MULTILINE)
4348 EDIT_MovePageUp_ML(es, shift);
4349 else
4350 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4351 break;
4352 case VK_NEXT:
4353 if (es->style & ES_MULTILINE)
4354 EDIT_MovePageDown_ML(es, shift);
4355 else
4356 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4357 break;
4358 case VK_DELETE:
4359 if (!(es->style & ES_READONLY) && !(shift && control)) {
4360 if (es->selection_start != es->selection_end) {
4361 if (shift)
4362 EDIT_WM_Cut(es);
4363 else
4364 EDIT_WM_Clear(es);
4365 } else {
4366 if (shift) {
4367 /* delete character left of caret */
4368 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4369 EDIT_MoveBackward(es, TRUE);
4370 EDIT_WM_Clear(es);
4371 } else if (control) {
4372 /* delete to end of line */
4373 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4374 EDIT_MoveEnd(es, TRUE);
4375 EDIT_WM_Clear(es);
4376 } else {
4377 /* delete character right of caret */
4378 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4379 EDIT_MoveForward(es, TRUE);
4380 EDIT_WM_Clear(es);
4381 }
4382 }
4383 }
4384 break;
4385 case VK_INSERT:
4386 if (shift) {
4387 if (!(es->style & ES_READONLY))
4388 EDIT_WM_Paste(es);
4389 } else if (control)
4390 EDIT_WM_Copy(es);
4391 break;
4392 case VK_RETURN:
4393 /* If the edit doesn't want the return send a message to the default object */
4394 if(!(es->style & ES_WANTRETURN))
4395 {
4396 HWND hwndParent = GetParent(es->hwndSelf);
4397 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4398 if (HIWORD(dw) == DC_HASDEFID)
4399 {
4400 SendMessageW( hwndParent, WM_COMMAND,
4401 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4402 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4403 }
4404 }
4405 break;
4406 }
4407 return 0;
4408 }
4409
4410
4411 /*********************************************************************
4412 *
4413 * WM_KILLFOCUS
4414 *
4415 */
4416 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4417 {
4418 es->flags &= ~EF_FOCUSED;
4419 DestroyCaret();
4420 if(!(es->style & ES_NOHIDESEL))
4421 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4422 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4423 return 0;
4424 }
4425
4426
4427 /*********************************************************************
4428 *
4429 * WM_LBUTTONDBLCLK
4430 *
4431 * The caret position has been set on the WM_LBUTTONDOWN message
4432 *
4433 */
4434 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4435 {
4436 INT s;
4437 INT e = es->selection_end;
4438 INT l;
4439 INT li;
4440 INT ll;
4441
4442 if (!(es->flags & EF_FOCUSED))
4443 return 0;
4444
4445 l = EDIT_EM_LineFromChar(es, e);
4446 li = EDIT_EM_LineIndex(es, l);
4447 ll = EDIT_EM_LineLength(es, e);
4448 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4449 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4450 EDIT_EM_SetSel(es, s, e, FALSE);
4451 EDIT_EM_ScrollCaret(es);
4452 return 0;
4453 }
4454
4455
4456 /*********************************************************************
4457 *
4458 * WM_LBUTTONDOWN
4459 *
4460 */
4461 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4462 {
4463 INT e;
4464 BOOL after_wrap;
4465
4466 SetFocus(es->hwndSelf);
4467 if (!(es->flags & EF_FOCUSED))
4468 return 0;
4469
4470 es->bCaptureState = TRUE;
4471 SetCapture(es->hwndSelf);
4472 EDIT_ConfinePoint(es, &x, &y);
4473 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4474 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4475 EDIT_EM_ScrollCaret(es);
4476 es->region_posx = es->region_posy = 0;
4477 SetTimer(es->hwndSelf, 0, 100, NULL);
4478 return 0;
4479 }
4480
4481
4482 /*********************************************************************
4483 *
4484 * WM_LBUTTONUP
4485 *
4486 */
4487 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4488 {
4489 if (es->bCaptureState) {
4490 KillTimer(es->hwndSelf, 0);
4491 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4492 }
4493 es->bCaptureState = FALSE;
4494 return 0;
4495 }
4496
4497
4498 /*********************************************************************
4499 *
4500 * WM_MBUTTONDOWN
4501 *
4502 */
4503 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4504 {
4505 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4506 return 0;
4507 }
4508
4509
4510 /*********************************************************************
4511 *
4512 * WM_MOUSEMOVE
4513 *
4514 */
4515 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4516 {
4517 INT e;
4518 BOOL after_wrap;
4519 INT prex, prey;
4520
4521 if (GetCapture() != es->hwndSelf)
4522 return 0;
4523
4524 /*
4525 * FIXME: gotta do some scrolling if outside client
4526 * area. Maybe reset the timer ?
4527 */
4528 prex = x; prey = y;
4529 EDIT_ConfinePoint(es, &x, &y);
4530 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4531 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4532 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4533 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4534 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4535 return 0;
4536 }
4537
4538
4539 /*********************************************************************
4540 *
4541 * WM_NCCREATE
4542 *
4543 * See also EDIT_WM_StyleChanged
4544 */
4545 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4546 {
4547 EDITSTATE *es;
4548 UINT alloc_size;
4549
4550 TRACE("Creating %s edit control, style = %08lx\n",
4551 unicode ? "Unicode" : "ANSI", lpcs->style);
4552
4553 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4554 return FALSE;
4555 SetWindowLongW( hwnd, 0, (LONG)es );
4556
4557 /*
4558 * Note: since the EDITSTATE has not been fully initialized yet,
4559 * we can't use any API calls that may send
4560 * WM_XXX messages before WM_NCCREATE is completed.
4561 */
4562
4563 es->is_unicode = unicode;
4564 es->style = lpcs->style;
4565
4566 es->bEnableState = !(es->style & WS_DISABLED);
4567
4568 es->hwndSelf = hwnd;
4569 /* Save parent, which will be notified by EN_* messages */
4570 es->hwndParent = lpcs->hwndParent;
4571
4572 if (es->style & ES_COMBO)
4573 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4574
4575 /* Number overrides lowercase overrides uppercase (at least it
4576 * does in Win95). However I'll bet that ES_NUMBER would be
4577 * invalid under Win 3.1.
4578 */
4579 if (es->style & ES_NUMBER) {
4580 ; /* do not override the ES_NUMBER */
4581 } else if (es->style & ES_LOWERCASE) {
4582 es->style &= ~ES_UPPERCASE;
4583 }
4584 if (es->style & ES_MULTILINE) {
4585 es->buffer_limit = BUFLIMIT_MULTI;
4586 if (es->style & WS_VSCROLL)
4587 es->style |= ES_AUTOVSCROLL;
4588 if (es->style & WS_HSCROLL)
4589 es->style |= ES_AUTOHSCROLL;
4590 es->style &= ~ES_PASSWORD;
4591 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4592 /* Confirmed - RIGHT overrides CENTER */
4593 if (es->style & ES_RIGHT)
4594 es->style &= ~ES_CENTER;
4595 es->style &= ~WS_HSCROLL;
4596 es->style &= ~ES_AUTOHSCROLL;
4597 }
4598 } else {
4599 es->buffer_limit = BUFLIMIT_SINGLE;
4600 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4601 es->style &= ~ES_CENTER;
4602 es->style &= ~WS_HSCROLL;
4603 es->style &= ~WS_VSCROLL;
4604 if (es->style & ES_PASSWORD)
4605 es->password_char = '*';
4606 }
4607
4608 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4609 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4610 return FALSE;
4611 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4612
4613 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4614 return FALSE;
4615 es->undo_buffer_size = es->buffer_size;
4616
4617 if (es->style & ES_MULTILINE)
4618 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4619 return FALSE;
4620 es->line_count = 1;
4621
4622 /*
4623 * In Win95 look and feel, the WS_BORDER style is replaced by the
4624 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4625 * control a nonclient area so we don't need to draw the border.
4626 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4627 * a nonclient area and we should handle painting the border ourselves.
4628 *
4629 * When making modifications please ensure that the code still works
4630 * for edit controls created directly with style 0x50800000, exStyle 0
4631 * (which should have a single pixel border)
4632 */
4633 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4634 es->style &= ~WS_BORDER;
4635 else if (es->style & WS_BORDER)
4636 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4637
4638 return TRUE;
4639 }
4640
4641 /*********************************************************************
4642 *
4643 * WM_PAINT
4644 *
4645 */
4646 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4647 {
4648 PAINTSTRUCT ps;
4649 INT i;
4650 HDC dc;
4651 HFONT old_font = 0;
4652 RECT rc;
4653 RECT rcClient;
4654 RECT rcLine;
4655 RECT rcRgn;
4656 HBRUSH brush;
4657 BOOL rev = es->bEnableState &&
4658 ((es->flags & EF_FOCUSED) ||
4659 (es->style & ES_NOHIDESEL));
4660 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4661
4662 GetClientRect(es->hwndSelf, &rcClient);
4663
4664 /* paint the background */
4665 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
4666 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
4667 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4668 GetClipBox(dc, &rc);
4669 FillRect(dc, &rc, brush);
4670
4671 /* draw the border */
4672 if(es->style & WS_BORDER) {
4673 rc = rcClient;
4674 if(es->style & ES_MULTILINE) {
4675 if(es->style & WS_HSCROLL) rc.bottom++;
4676 if(es->style & WS_VSCROLL) rc.right++;
4677 }
4678 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4679 }
4680 IntersectClipRect(dc, es->format_rect.left,
4681 es->format_rect.top,
4682 es->format_rect.right,
4683 es->format_rect.bottom);
4684 if (es->style & ES_MULTILINE) {
4685 rc = rcClient;
4686 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4687 }
4688 if (es->font)
4689 old_font = SelectObject(dc, es->font);
4690 EDIT_NotifyCtlColor(es, dc);
4691
4692 if (!es->bEnableState)
4693 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4694 GetClipBox(dc, &rcRgn);
4695 if (es->style & ES_MULTILINE) {
4696 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4697 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4698 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4699 if (IntersectRect(&rc, &rcRgn, &rcLine))
4700 EDIT_PaintLine(es, dc, i, rev);
4701 }
4702 } else {
4703 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4704 if (IntersectRect(&rc, &rcRgn, &rcLine))
4705 EDIT_PaintLine(es, dc, 0, rev);
4706 }
4707 if (es->font)
4708 SelectObject(dc, old_font);
4709
4710 if (!hdc)
4711 EndPaint(es->hwndSelf, &ps);
4712 }
4713
4714
4715 /*********************************************************************
4716 *
4717 * WM_PASTE
4718 *
4719 */
4720 static void EDIT_WM_Paste(EDITSTATE *es)
4721 {
4722 HGLOBAL hsrc;
4723 LPWSTR src;
4724
4725 /* Protect read-only edit control from modification */
4726 if(es->style & ES_READONLY)
4727 return;
4728
4729 OpenClipboard(es->hwndSelf);
4730 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4731 src = (LPWSTR)GlobalLock(hsrc);
4732 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4733 GlobalUnlock(hsrc);
4734 }
4735 CloseClipboard();
4736 }
4737
4738
4739 /*********************************************************************
4740 *
4741 * WM_SETFOCUS
4742 *
4743 */
4744 static void EDIT_WM_SetFocus(EDITSTATE *es)
4745 {
4746 es->flags |= EF_FOCUSED;
4747 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4748 EDIT_SetCaretPos(es, es->selection_end,
4749 es->flags & EF_AFTER_WRAP);
4750 if(!(es->style & ES_NOHIDESEL))
4751 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4752 ShowCaret(es->hwndSelf);
4753 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4754 }
4755
4756
4757 /*********************************************************************
4758 *
4759 * WM_SETFONT
4760 *
4761 * With Win95 look the margins are set to default font value unless
4762 * the system font (font == 0) is being set, in which case they are left
4763 * unchanged.
4764 *
4765 */
4766 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4767 {
4768 TEXTMETRICW tm;
4769 HDC dc;
4770 HFONT old_font = 0;
4771 RECT r;
4772
4773 es->font = font;
4774 dc = GetDC(es->hwndSelf);
4775 if (font)
4776 old_font = SelectObject(dc, font);
4777 GetTextMetricsW(dc, &tm);
4778 es->line_height = tm.tmHeight;
4779 es->char_width = tm.tmAveCharWidth;
4780 if (font)
4781 SelectObject(dc, old_font);
4782 ReleaseDC(es->hwndSelf, dc);
4783 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4784 EC_USEFONTINFO, EC_USEFONTINFO);
4785
4786 /* Force the recalculation of the format rect for each font change */
4787 GetClientRect(es->hwndSelf, &r);
4788 EDIT_SetRectNP(es, &r);
4789
4790 if (es->style & ES_MULTILINE)
4791 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4792 else
4793 EDIT_CalcLineWidth_SL(es);
4794
4795 if (redraw)
4796 EDIT_UpdateText(es, NULL, TRUE);
4797 if (es->flags & EF_FOCUSED) {
4798 DestroyCaret();
4799 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4800 EDIT_SetCaretPos(es, es->selection_end,
4801 es->flags & EF_AFTER_WRAP);
4802 ShowCaret(es->hwndSelf);
4803 }
4804 }
4805
4806
4807 /*********************************************************************
4808 *
4809 * WM_SETTEXT
4810 *
4811 * NOTES
4812 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4813 * The modified flag is reset. No notifications are sent.
4814 *
4815 * For single-line controls, reception of WM_SETTEXT triggers:
4816 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4817 *
4818 */
4819 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
4820 {
4821 if (!unicode && text)
4822 {
4823 LPCSTR textA = (LPCSTR)text;
4824 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4825 LPWSTR textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
4826 if (textW)
4827 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
4828 text = textW;
4829 }
4830
4831 if (es->flags & EF_UPDATE)
4832 /* fixed this bug once; complain if we see it about to happen again. */
4833 ERR("SetSel may generate UPDATE message whose handler may reset "
4834 "selection.\n");
4835
4836 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4837 if (text)
4838 {
4839 TRACE("%s\n", debugstr_w(text));
4840 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
4841 if(!unicode)
4842 HeapFree(GetProcessHeap(), 0, (LPWSTR)text);
4843 }
4844 else
4845 {
4846 static const WCHAR empty_stringW[] = {0};
4847 TRACE("<NULL>\n");
4848 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
4849 }
4850 es->x_offset = 0;
4851 es->flags &= ~EF_MODIFIED;
4852 EDIT_EM_SetSel(es, 0, 0, FALSE);
4853
4854 /* Send the notification after the selection start and end have been set
4855 * edit control doesn't send notification on WM_SETTEXT
4856 * if it is multiline, or it is part of combobox
4857 */
4858 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4859 {
4860 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4861 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4862 }
4863 EDIT_EM_ScrollCaret(es);
4864 EDIT_UpdateScrollInfo(es);
4865 }
4866
4867
4868 /*********************************************************************
4869 *
4870 * WM_SIZE
4871 *
4872 */
4873 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
4874 {
4875 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4876 RECT rc;
4877 TRACE("width = %d, height = %d\n", width, height);
4878 SetRect(&rc, 0, 0, width, height);
4879 EDIT_SetRectNP(es, &rc);
4880 EDIT_UpdateText(es, NULL, TRUE);
4881 }
4882 }
4883
4884
4885 /*********************************************************************
4886 *
4887 * WM_STYLECHANGED
4888 *
4889 * This message is sent by SetWindowLong on having changed either the Style
4890 * or the extended style.
4891 *
4892 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4893 *
4894 * See also EDIT_WM_NCCreate
4895 *
4896 * It appears that the Windows version of the edit control allows the style
4897 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4898 * style variable which will generally be different. In this function we
4899 * update the internal style based on what changed in the externally visible
4900 * style.
4901 *
4902 * Much of this content as based upon the MSDN, especially:
4903 * Platform SDK Documentation -> User Interface Services ->
4904 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4905 * Edit Control Styles
4906 */
4907 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4908 {
4909 if (GWL_STYLE == which) {
4910 DWORD style_change_mask;
4911 DWORD new_style;
4912 /* Only a subset of changes can be applied after the control
4913 * has been created.
4914 */
4915 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4916 ES_NUMBER;
4917 if (es->style & ES_MULTILINE)
4918 style_change_mask |= ES_WANTRETURN;
4919
4920 new_style = style->styleNew & style_change_mask;
4921
4922 /* Number overrides lowercase overrides uppercase (at least it
4923 * does in Win95). However I'll bet that ES_NUMBER would be
4924 * invalid under Win 3.1.
4925 */
4926 if (new_style & ES_NUMBER) {
4927 ; /* do not override the ES_NUMBER */
4928 } else if (new_style & ES_LOWERCASE) {
4929 new_style &= ~ES_UPPERCASE;
4930 }
4931
4932 es->style = (es->style & ~style_change_mask) | new_style;
4933 } else if (GWL_EXSTYLE == which) {
4934 ; /* FIXME - what is needed here */
4935 } else {
4936 WARN ("Invalid style change %d\n",which);
4937 }
4938
4939 return 0;
4940 }
4941
4942 /*********************************************************************
4943 *
4944 * WM_SYSKEYDOWN
4945 *
4946 */
4947 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4948 {
4949 if ((key == VK_BACK) && (key_data & 0x2000)) {
4950 if (EDIT_EM_CanUndo(es))
4951 EDIT_EM_Undo(es);
4952 return 0;
4953 } else if (key == VK_UP || key == VK_DOWN) {
4954 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4955 return 0;
4956 }
4957 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4958 }
4959
4960
4961 /*********************************************************************
4962 *
4963 * WM_TIMER
4964 *
4965 */
4966 static void EDIT_WM_Timer(EDITSTATE *es)
4967 {
4968 if (es->region_posx < 0) {
4969 EDIT_MoveBackward(es, TRUE);
4970 } else if (es->region_posx > 0) {
4971 EDIT_MoveForward(es, TRUE);
4972 }
4973 /*
4974 * FIXME: gotta do some vertical scrolling here, like
4975 * EDIT_EM_LineScroll(hwnd, 0, 1);
4976 */
4977 }
4978
4979 /*********************************************************************
4980 *
4981 * WM_VSCROLL
4982 *
4983 */
4984 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4985 {
4986 INT dy;
4987
4988 if (!(es->style & ES_MULTILINE))
4989 return 0;
4990
4991 if (!(es->style & ES_AUTOVSCROLL))
4992 return 0;
4993
4994 dy = 0;
4995 switch (action) {
4996 case SB_LINEUP:
4997 case SB_LINEDOWN:
4998 case SB_PAGEUP:
4999 case SB_PAGEDOWN:
5000 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5001 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5002 (action == SB_PAGEUP ? "SB_PAGEUP" :
5003 "SB_PAGEDOWN"))));
5004 EDIT_EM_Scroll(es, action);
5005 return 0;
5006 case SB_TOP:
5007 TRACE("SB_TOP\n");
5008 dy = -es->y_offset;
5009 break;
5010 case SB_BOTTOM:
5011 TRACE("SB_BOTTOM\n");
5012 dy = es->line_count - 1 - es->y_offset;
5013 break;
5014 case SB_THUMBTRACK:
5015 TRACE("SB_THUMBTRACK %d\n", pos);
5016 es->flags |= EF_VSCROLL_TRACK;
5017 if(es->style & WS_VSCROLL)
5018 dy = pos - es->y_offset;
5019 else
5020 {
5021 /* Assume default scroll range 0-100 */
5022 INT vlc, new_y;
5023 /* Sanity check */
5024 if(pos < 0 || pos > 100) return 0;
5025 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5026 new_y = pos * (es->line_count - vlc) / 100;
5027 dy = es->line_count ? (new_y - es->y_offset) : 0;
5028 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5029 es->line_count, es->y_offset, pos, dy);
5030 }
5031 break;
5032 case SB_THUMBPOSITION:
5033 TRACE("SB_THUMBPOSITION %d\n", pos);
5034 es->flags &= ~EF_VSCROLL_TRACK;
5035 if(es->style & WS_VSCROLL)
5036 dy = pos - es->y_offset;
5037 else
5038 {
5039 /* Assume default scroll range 0-100 */
5040 INT vlc, new_y;
5041 /* Sanity check */
5042 if(pos < 0 || pos > 100) return 0;
5043 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5044 new_y = pos * (es->line_count - vlc) / 100;
5045 dy = es->line_count ? (new_y - es->y_offset) : 0;
5046 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5047 es->line_count, es->y_offset, pos, dy);
5048 }
5049 if (!dy)
5050 {
5051 /* force scroll info update */
5052 EDIT_UpdateScrollInfo(es);
5053 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
5054 }
5055 break;
5056 case SB_ENDSCROLL:
5057 TRACE("SB_ENDSCROLL\n");
5058 break;
5059 /*
5060 * FIXME : the next two are undocumented !
5061 * Are we doing the right thing ?
5062 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5063 * although it's also a regular control message.
5064 */
5065 case EM_GETTHUMB: /* this one is used by NT notepad */
5066 case EM_GETTHUMB16:
5067 {
5068 LRESULT ret;
5069 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5070 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5071 else
5072 {
5073 /* Assume default scroll range 0-100 */
5074 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5075 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5076 }
5077 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5078 return ret;
5079 }
5080 case EM_LINESCROLL16:
5081 TRACE("EM_LINESCROLL16 %d\n", pos);
5082 dy = pos;
5083 break;
5084
5085 default:
5086 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5087 action, action);
5088 return 0;
5089 }
5090 if (dy)
5091 EDIT_EM_LineScroll(es, 0, dy);
5092 return 0;
5093 }
5094
5095 /*********************************************************************
5096 *
5097 * EDIT_UpdateText
5098 *
5099 */
5100 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5101 {
5102 if (es->flags & EF_UPDATE) {
5103 es->flags &= ~EF_UPDATE;
5104 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
5105 }
5106 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5107 }
5108
5109
5110 /*********************************************************************
5111 *
5112 * EDIT_UpdateText
5113 *
5114 */
5115 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
5116 {
5117 if (es->flags & EF_UPDATE) {
5118 es->flags &= ~EF_UPDATE;
5119 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
5120 }
5121 InvalidateRect(es->hwndSelf, rc, bErase);
5122 }
GSOC 2012 project to enhance the control panel