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user32: Handle IME messages more gracefully.
[wine.git] / dlls / user32 / edit.c
blobdba946b6b4bd84498aaeb982150d83ec5128f072
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 "imm.h"
57 #include "wine/winbase16.h"
58 #include "wine/winuser16.h"
59 #include "wine/unicode.h"
60 #include "controls.h"
61 #include "user_private.h"
62 #include "wine/debug.h"
63
64 WINE_DEFAULT_DEBUG_CHANNEL(edit);
65 WINE_DECLARE_DEBUG_CHANNEL(combo);
66 WINE_DECLARE_DEBUG_CHANNEL(relay);
67
68 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
69 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
70 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
71 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
72
73 /*
74 * extra flags for EDITSTATE.flags field
75 */
76 #define EF_MODIFIED 0x0001 /* text has been modified */
77 #define EF_FOCUSED 0x0002 /* we have input focus */
78 #define EF_UPDATE 0x0004 /* notify parent of changed state */
79 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
80 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
81 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
82 wrapped line, instead of in front of the next character */
83 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
84 #define EF_APP_HAS_HANDLE 0x0200 /* Set when an app sends EM_[G|S]ETHANDLE. We are in sole control of
85 the text buffer if this is clear. */
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 text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
109 UINT buffer_size; /* the size of the buffer in characters */
110 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
111 HFONT font; /* NULL means standard system font */
112 INT x_offset; /* scroll offset for multi lines this is in pixels
113 for single lines it's in characters */
114 INT line_height; /* height of a screen line in pixels */
115 INT char_width; /* average character width in pixels */
116 DWORD style; /* sane version of wnd->dwStyle */
117 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
118 INT undo_insert_count; /* number of characters inserted in sequence */
119 UINT undo_position; /* character index of the insertion and deletion */
120 LPWSTR undo_text; /* deleted text */
121 UINT undo_buffer_size; /* size of the deleted text buffer */
122 INT selection_start; /* == selection_end if no selection */
123 INT selection_end; /* == current caret position */
124 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
125 INT left_margin; /* in pixels */
126 INT right_margin; /* in pixels */
127 RECT format_rect;
128 INT text_width; /* width of the widest line in pixels for multi line controls
129 and just line width for single line controls */
130 INT region_posx; /* Position of cursor relative to region: */
131 INT region_posy; /* -1: to left, 0: within, 1: to right */
132 EDITWORDBREAKPROC16 word_break_proc16;
133 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
134 INT line_count; /* number of lines */
135 INT y_offset; /* scroll offset in number of lines */
136 BOOL bCaptureState; /* flag indicating whether mouse was captured */
137 BOOL bEnableState; /* flag keeping the enable state */
138 HWND hwndSelf; /* the our window handle */
139 HWND hwndParent; /* Handle of parent for sending EN_* messages.
140 Even if parent will change, EN_* messages
141 should be sent to the first parent. */
142 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
143 /*
144 * only for multi line controls
145 */
146 INT lock_count; /* amount of re-entries in the EditWndProc */
147 INT tabs_count;
148 LPINT tabs;
149 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
150 HLOCAL hloc32W; /* our unicode local memory block */
151 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
152 or EM_SETHANDLE16 */
153 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
154 or EM_SETHANDLE */
155 /*
156 * IME Data
157 */
158 UINT composition_len; /* length of composition, 0 == no composition */
159 int composition_start; /* the character position for the composition */
160 } EDITSTATE;
161
162
163 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
164 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
165
166 /* used for disabled or read-only edit control */
167 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
168 do \
169 { /* Notify parent which has created this edit control */ \
170 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
171 SendMessageW(es->hwndParent, WM_COMMAND, \
172 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
173 (LPARAM)(es->hwndSelf)); \
174 } while(0)
175
176 /*********************************************************************
177 *
178 * Declarations
179 *
180 */
181
182 /*
183 * These functions have trivial implementations
184 * We still like to call them internally
185 * "static inline" makes them more like macro's
186 */
187 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es);
188 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
189 static inline void EDIT_WM_Clear(EDITSTATE *es);
190 static inline void EDIT_WM_Cut(EDITSTATE *es);
191
192 /*
193 * Helper functions only valid for one type of control
194 */
195 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
196 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
197 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
198 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
199 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
200 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
201 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
202 /*
203 * Helper functions valid for both single line _and_ multi line controls
204 */
205 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
206 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
207 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y);
208 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
209 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
210 static void EDIT_LockBuffer(EDITSTATE *es);
211 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
212 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
213 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
214 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl);
215 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
216 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl);
217 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
218 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
219 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
220 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
221 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
222 static void EDIT_AdjustFormatRect(EDITSTATE *es);
223 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *lprc);
224 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
225 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
226 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
227 /*
228 * EM_XXX message handlers
229 */
230 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
231 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
232 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
233 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
234 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode);
235 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end);
236 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
237 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
238 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line);
239 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
240 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
241 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
242 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
243 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
244 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
245 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
246 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
247 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
248 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit);
249 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, WORD left, WORD right, BOOL repaint);
250 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
251 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
252 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs);
253 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs);
254 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp);
255 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
256 static BOOL EDIT_EM_Undo(EDITSTATE *es);
257 /*
258 * WM_XXX message handlers
259 */
260 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c);
261 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
262 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
263 static void EDIT_WM_Copy(EDITSTATE *es);
264 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
265 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
266 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode);
267 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
268 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
269 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
270 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
271 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
272 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
273 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
274 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
275 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
276 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc);
277 static void EDIT_WM_Paste(EDITSTATE *es);
278 static void EDIT_WM_SetFocus(EDITSTATE *es);
279 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
280 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode);
281 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
282 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
283 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
284 static void EDIT_WM_Timer(EDITSTATE *es);
285 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
286 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase);
287 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
288 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es);
289
290 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
291 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
292
293 /*********************************************************************
294 * edit class descriptor
295 */
296 static const WCHAR editW[] = {'E','d','i','t',0};
297 const struct builtin_class_descr EDIT_builtin_class =
298 {
299 editW, /* name */
300 CS_DBLCLKS | CS_PARENTDC, /* style */
301 EditWndProcA, /* procA */
302 EditWndProcW, /* procW */
303 sizeof(EDITSTATE *), /* extra */
304 IDC_IBEAM, /* cursor */
305 0 /* brush */
306 };
307
308
309 /*********************************************************************
310 *
311 * EM_CANUNDO
312 *
313 */
314 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es)
315 {
316 return (es->undo_insert_count || strlenW(es->undo_text));
317 }
318
319
320 /*********************************************************************
321 *
322 * EM_EMPTYUNDOBUFFER
323 *
324 */
325 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
326 {
327 es->undo_insert_count = 0;
328 *es->undo_text = '\0';
329 }
330
331
332 /*********************************************************************
333 *
334 * WM_CLEAR
335 *
336 */
337 static inline void EDIT_WM_Clear(EDITSTATE *es)
338 {
339 static const WCHAR empty_stringW[] = {0};
340
341 /* Protect read-only edit control from modification */
342 if(es->style & ES_READONLY)
343 return;
344
345 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
346 }
347
348
349 /*********************************************************************
350 *
351 * WM_CUT
352 *
353 */
354 static inline void EDIT_WM_Cut(EDITSTATE *es)
355 {
356 EDIT_WM_Copy(es);
357 EDIT_WM_Clear(es);
358 }
359
360
361 /**********************************************************************
362 * get_app_version
363 *
364 * Returns the window version in case Wine emulates a later version
365 * of windows than the application expects.
366 *
367 * In a number of cases when windows runs an application that was
368 * designed for an earlier windows version, windows reverts
369 * to "old" behaviour of that earlier version.
370 *
371 * An example is a disabled edit control that needs to be painted.
372 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
373 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
374 * applications with an expected version 0f 4.0 or higher.
375 *
376 */
377 static DWORD get_app_version(void)
378 {
379 static DWORD version;
380 if (!version)
381 {
382 DWORD dwEmulatedVersion;
383 OSVERSIONINFOW info;
384 DWORD dwProcVersion = GetProcessVersion(0);
385
386 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
387 GetVersionExW( &info );
388 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
389 /* FIXME: this may not be 100% correct; see discussion on the
390 * wine developer list in Nov 1999 */
391 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
392 }
393 return version;
394 }
395
396 static inline UINT get_text_length(EDITSTATE *es)
397 {
398 if(es->text_length == (UINT)-1)
399 es->text_length = strlenW(es->text);
400 return es->text_length;
401 }
402
403 static inline void text_buffer_changed(EDITSTATE *es)
404 {
405 es->text_length = (UINT)-1;
406 }
407
408 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
409 {
410 HBRUSH hbrush;
411 UINT msg;
412
413 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
414 msg = WM_CTLCOLORSTATIC;
415 else
416 msg = WM_CTLCOLOREDIT;
417
418 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
419 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
420 if (!hbrush)
421 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
422 return hbrush;
423 }
424
425 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
426 {
427 if(unicode)
428 return DefWindowProcW(hwnd, msg, wParam, lParam);
429 else
430 return DefWindowProcA(hwnd, msg, wParam, lParam);
431 }
432
433 /*********************************************************************
434 *
435 * EditWndProc_common
436 *
437 * The messages are in the order of the actual integer values
438 * (which can be found in include/windows.h)
439 * Wherever possible the 16 bit versions are converted to
440 * the 32 bit ones, so that we can 'fall through' to the
441 * helper functions. These are mostly 32 bit (with a few
442 * exceptions, clearly indicated by a '16' extension to their
443 * names).
444 *
445 */
446 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
447 WPARAM wParam, LPARAM lParam, BOOL unicode )
448 {
449 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
450 LRESULT result = 0;
451
452 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
453
454 if (!es && msg != WM_NCCREATE)
455 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
456
457 if (es && (msg != WM_DESTROY)) EDIT_LockBuffer(es);
458
459 switch (msg) {
460 case EM_GETSEL16:
461 wParam = 0;
462 lParam = 0;
463 /* fall through */
464 case EM_GETSEL:
465 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
466 break;
467
468 case EM_SETSEL16:
469 if ((short)LOWORD(lParam) == -1)
470 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
471 else
472 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
473 if (!wParam)
474 EDIT_EM_ScrollCaret(es);
475 result = 1;
476 break;
477 case EM_SETSEL:
478 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
479 EDIT_EM_ScrollCaret(es);
480 result = 1;
481 break;
482
483 case EM_GETRECT16:
484 if (lParam)
485 {
486 RECT16 *r16 = MapSL(lParam);
487 r16->left = es->format_rect.left;
488 r16->top = es->format_rect.top;
489 r16->right = es->format_rect.right;
490 r16->bottom = es->format_rect.bottom;
491 }
492 break;
493 case EM_GETRECT:
494 if (lParam)
495 CopyRect((LPRECT)lParam, &es->format_rect);
496 break;
497
498 case EM_SETRECT16:
499 if ((es->style & ES_MULTILINE) && lParam) {
500 RECT rc;
501 RECT16 *r16 = MapSL(lParam);
502 rc.left = r16->left;
503 rc.top = r16->top;
504 rc.right = r16->right;
505 rc.bottom = r16->bottom;
506 EDIT_SetRectNP(es, &rc);
507 EDIT_UpdateText(es, NULL, TRUE);
508 }
509 break;
510 case EM_SETRECT:
511 if ((es->style & ES_MULTILINE) && lParam) {
512 EDIT_SetRectNP(es, (LPRECT)lParam);
513 EDIT_UpdateText(es, NULL, TRUE);
514 }
515 break;
516
517 case EM_SETRECTNP16:
518 if ((es->style & ES_MULTILINE) && lParam) {
519 RECT rc;
520 RECT16 *r16 = MapSL(lParam);
521 rc.left = r16->left;
522 rc.top = r16->top;
523 rc.right = r16->right;
524 rc.bottom = r16->bottom;
525 EDIT_SetRectNP(es, &rc);
526 }
527 break;
528 case EM_SETRECTNP:
529 if ((es->style & ES_MULTILINE) && lParam)
530 EDIT_SetRectNP(es, (LPRECT)lParam);
531 break;
532
533 case EM_SCROLL16:
534 case EM_SCROLL:
535 result = EDIT_EM_Scroll(es, (INT)wParam);
536 break;
537
538 case EM_LINESCROLL16:
539 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
540 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
541 /* fall through */
542 case EM_LINESCROLL:
543 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
544 break;
545
546 case EM_SCROLLCARET16:
547 case EM_SCROLLCARET:
548 EDIT_EM_ScrollCaret(es);
549 result = 1;
550 break;
551
552 case EM_GETMODIFY16:
553 case EM_GETMODIFY:
554 result = ((es->flags & EF_MODIFIED) != 0);
555 break;
556
557 case EM_SETMODIFY16:
558 case EM_SETMODIFY:
559 if (wParam)
560 es->flags |= EF_MODIFIED;
561 else
562 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
563 break;
564
565 case EM_GETLINECOUNT16:
566 case EM_GETLINECOUNT:
567 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
568 break;
569
570 case EM_LINEINDEX16:
571 if ((INT16)wParam == -1)
572 wParam = (WPARAM)-1;
573 /* fall through */
574 case EM_LINEINDEX:
575 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
576 break;
577
578 case EM_SETHANDLE16:
579 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
580 break;
581 case EM_SETHANDLE:
582 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
583 break;
584
585 case EM_GETHANDLE16:
586 result = (LRESULT)EDIT_EM_GetHandle16(es);
587 break;
588 case EM_GETHANDLE:
589 result = (LRESULT)EDIT_EM_GetHandle(es);
590 break;
591
592 case EM_GETTHUMB16:
593 case EM_GETTHUMB:
594 result = EDIT_EM_GetThumb(es);
595 break;
596
597 /* these messages missing from specs */
598 case WM_USER+15:
599 case 0x00bf:
600 case WM_USER+16:
601 case 0x00c0:
602 case WM_USER+19:
603 case 0x00c3:
604 case WM_USER+26:
605 case 0x00ca:
606 FIXME("undocumented message 0x%x, please report\n", msg);
607 result = DefWindowProcW(hwnd, msg, wParam, lParam);
608 break;
609
610 case EM_LINELENGTH16:
611 case EM_LINELENGTH:
612 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
613 break;
614
615 case EM_REPLACESEL16:
616 lParam = (LPARAM)MapSL(lParam);
617 unicode = FALSE; /* 16-bit message is always ascii */
618 /* fall through */
619 case EM_REPLACESEL:
620 {
621 LPWSTR textW;
622
623 if(unicode)
624 textW = (LPWSTR)lParam;
625 else
626 {
627 LPSTR textA = (LPSTR)lParam;
628 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
629 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
630 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
631 }
632
633 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
634 result = 1;
635
636 if(!unicode)
637 HeapFree(GetProcessHeap(), 0, textW);
638 break;
639 }
640
641 case EM_GETLINE16:
642 lParam = (LPARAM)MapSL(lParam);
643 unicode = FALSE; /* 16-bit message is always ascii */
644 /* fall through */
645 case EM_GETLINE:
646 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
647 break;
648
649 case EM_LIMITTEXT16:
650 case EM_SETLIMITTEXT:
651 EDIT_EM_SetLimitText(es, wParam);
652 break;
653
654 case EM_CANUNDO16:
655 case EM_CANUNDO:
656 result = (LRESULT)EDIT_EM_CanUndo(es);
657 break;
658
659 case EM_UNDO16:
660 case EM_UNDO:
661 case WM_UNDO:
662 result = (LRESULT)EDIT_EM_Undo(es);
663 break;
664
665 case EM_FMTLINES16:
666 case EM_FMTLINES:
667 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
668 break;
669
670 case EM_LINEFROMCHAR16:
671 case EM_LINEFROMCHAR:
672 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
673 break;
674
675 case EM_SETTABSTOPS16:
676 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
677 break;
678 case EM_SETTABSTOPS:
679 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
680 break;
681
682 case EM_SETPASSWORDCHAR16:
683 unicode = FALSE; /* 16-bit message is always ascii */
684 /* fall through */
685 case EM_SETPASSWORDCHAR:
686 {
687 WCHAR charW = 0;
688
689 if(unicode)
690 charW = (WCHAR)wParam;
691 else
692 {
693 CHAR charA = wParam;
694 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
695 }
696
697 EDIT_EM_SetPasswordChar(es, charW);
698 break;
699 }
700
701 case EM_EMPTYUNDOBUFFER16:
702 case EM_EMPTYUNDOBUFFER:
703 EDIT_EM_EmptyUndoBuffer(es);
704 break;
705
706 case EM_GETFIRSTVISIBLELINE16:
707 result = es->y_offset;
708 break;
709 case EM_GETFIRSTVISIBLELINE:
710 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
711 break;
712
713 case EM_SETREADONLY16:
714 case EM_SETREADONLY:
715 if (wParam) {
716 SetWindowLongW( hwnd, GWL_STYLE,
717 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
718 es->style |= ES_READONLY;
719 } else {
720 SetWindowLongW( hwnd, GWL_STYLE,
721 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
722 es->style &= ~ES_READONLY;
723 }
724 result = 1;
725 break;
726
727 case EM_SETWORDBREAKPROC16:
728 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
729 break;
730 case EM_SETWORDBREAKPROC:
731 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
732 break;
733
734 case EM_GETWORDBREAKPROC16:
735 result = (LRESULT)es->word_break_proc16;
736 break;
737 case EM_GETWORDBREAKPROC:
738 result = (LRESULT)es->word_break_proc;
739 break;
740
741 case EM_GETPASSWORDCHAR16:
742 unicode = FALSE; /* 16-bit message is always ascii */
743 /* fall through */
744 case EM_GETPASSWORDCHAR:
745 {
746 if(unicode)
747 result = es->password_char;
748 else
749 {
750 WCHAR charW = es->password_char;
751 CHAR charA = 0;
752 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
753 result = charA;
754 }
755 break;
756 }
757
758 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
759
760 case EM_SETMARGINS:
761 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
762 break;
763
764 case EM_GETMARGINS:
765 result = MAKELONG(es->left_margin, es->right_margin);
766 break;
767
768 case EM_GETLIMITTEXT:
769 result = es->buffer_limit;
770 break;
771
772 case EM_POSFROMCHAR:
773 if ((INT)wParam >= get_text_length(es)) result = -1;
774 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
775 break;
776
777 case EM_CHARFROMPOS:
778 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
779 break;
780
781 /* End of the EM_ messages which were in numerical order; what order
782 * are these in? vaguely alphabetical?
783 */
784
785 case WM_NCCREATE:
786 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
787 break;
788
789 case WM_DESTROY:
790 result = EDIT_WM_Destroy(es);
791 es = NULL;
792 break;
793
794 case WM_GETDLGCODE:
795 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
796
797 if (es->style & ES_MULTILINE)
798 result |= DLGC_WANTALLKEYS;
799
800 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
801 {
802 int vk = (int)((LPMSG)lParam)->wParam;
803
804 if (es->hwndListBox)
805 {
806 if (vk == VK_RETURN || vk == VK_ESCAPE)
807 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
808 result |= DLGC_WANTMESSAGE;
809 }
810 else
811 {
812 switch (vk)
813 {
814 case VK_ESCAPE:
815 SendMessageW(GetParent(hwnd), WM_CLOSE, 0, 0);
816 break;
817 default:
818 break;
819 }
820 }
821 }
822 break;
823
824 case WM_IME_CHAR:
825 if (!unicode)
826 {
827 WCHAR charW;
828 CHAR strng[2];
829
830 strng[0] = wParam >> 8;
831 strng[1] = wParam & 0xff;
832 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
833 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
834 result = EDIT_WM_Char(es, charW);
835 break;
836 }
837 /* fall through */
838 case WM_CHAR:
839 {
840 WCHAR charW;
841
842 if(unicode)
843 charW = wParam;
844 else
845 {
846 CHAR charA = wParam;
847 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
848 }
849
850 if (es->hwndListBox)
851 {
852 if (charW == VK_RETURN || charW == VK_ESCAPE)
853 {
854 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
855 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
856 break;
857 }
858 }
859 result = EDIT_WM_Char(es, charW);
860 break;
861 }
862
863 case WM_CLEAR:
864 EDIT_WM_Clear(es);
865 break;
866
867 case WM_COMMAND:
868 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
869 break;
870
871 case WM_CONTEXTMENU:
872 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
873 break;
874
875 case WM_COPY:
876 EDIT_WM_Copy(es);
877 break;
878
879 case WM_CREATE:
880 if(unicode)
881 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
882 else
883 {
884 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
885 LPWSTR nameW = NULL;
886 if(nameA)
887 {
888 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
889 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
890 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
891 }
892 result = EDIT_WM_Create(es, nameW);
893 HeapFree(GetProcessHeap(), 0, nameW);
894 }
895 break;
896
897 case WM_CUT:
898 EDIT_WM_Cut(es);
899 break;
900
901 case WM_ENABLE:
902 es->bEnableState = (BOOL) wParam;
903 EDIT_UpdateText(es, NULL, TRUE);
904 break;
905
906 case WM_ERASEBKGND:
907 /* we do the proper erase in EDIT_WM_Paint */
908 result = 1;
909 break;
910
911 case WM_GETFONT:
912 result = (LRESULT)es->font;
913 break;
914
915 case WM_GETTEXT:
916 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
917 break;
918
919 case WM_GETTEXTLENGTH:
920 if (unicode) result = get_text_length(es);
921 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
922 NULL, 0, NULL, NULL );
923 break;
924
925 case WM_HSCROLL:
926 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
927 break;
928
929 case WM_KEYDOWN:
930 result = EDIT_WM_KeyDown(es, (INT)wParam);
931 break;
932
933 case WM_KILLFOCUS:
934 result = EDIT_WM_KillFocus(es);
935 break;
936
937 case WM_LBUTTONDBLCLK:
938 result = EDIT_WM_LButtonDblClk(es);
939 break;
940
941 case WM_LBUTTONDOWN:
942 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
943 break;
944
945 case WM_LBUTTONUP:
946 result = EDIT_WM_LButtonUp(es);
947 break;
948
949 case WM_MBUTTONDOWN:
950 result = EDIT_WM_MButtonDown(es);
951 break;
952
953 case WM_MOUSEMOVE:
954 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
955 break;
956
957 case WM_PRINTCLIENT:
958 case WM_PAINT:
959 EDIT_WM_Paint(es, (HDC)wParam);
960 break;
961
962 case WM_PASTE:
963 EDIT_WM_Paste(es);
964 break;
965
966 case WM_SETFOCUS:
967 EDIT_WM_SetFocus(es);
968 break;
969
970 case WM_SETFONT:
971 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
972 break;
973
974 case WM_SETREDRAW:
975 /* FIXME: actually set an internal flag and behave accordingly */
976 break;
977
978 case WM_SETTEXT:
979 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
980 result = TRUE;
981 break;
982
983 case WM_SIZE:
984 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
985 break;
986
987 case WM_STYLECHANGED:
988 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
989 break;
990
991 case WM_STYLECHANGING:
992 result = 0; /* See EDIT_WM_StyleChanged */
993 break;
994
995 case WM_SYSKEYDOWN:
996 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
997 break;
998
999 case WM_TIMER:
1000 EDIT_WM_Timer(es);
1001 break;
1002
1003 case WM_VSCROLL:
1004 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
1005 break;
1006
1007 case WM_MOUSEWHEEL:
1008 {
1009 int gcWheelDelta = 0;
1010 UINT pulScrollLines = 3;
1011 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1012
1013 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1014 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1015 break;
1016 }
1017 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1018 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1019 {
1020 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1021 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1022 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1023 }
1024 }
1025 break;
1026
1027
1028 /* IME messages to make the edit control IME aware */
1029 case WM_IME_SETCONTEXT:
1030 break;
1031
1032 case WM_IME_STARTCOMPOSITION:
1033 es->composition_start = es->selection_end;
1034 es->composition_len = 0;
1035 break;
1036
1037 case WM_IME_COMPOSITION:
1038 EDIT_ImeComposition(hwnd, lParam, es);
1039 break;
1040
1041 case WM_IME_ENDCOMPOSITION:
1042 if (es->composition_len > 0)
1043 {
1044 static const WCHAR empty_stringW[] = {0};
1045 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1046 es->selection_end = es->selection_start;
1047 es->composition_len= 0;
1048 }
1049 break;
1050
1051 case WM_IME_COMPOSITIONFULL:
1052 break;
1053
1054 case WM_IME_SELECT:
1055 break;
1056
1057 case WM_IME_CONTROL:
1058 break;
1059
1060 default:
1061 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1062 break;
1063 }
1064
1065 if (es) EDIT_UnlockBuffer(es, FALSE);
1066
1067 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1068
1069 return result;
1070 }
1071
1072 /*********************************************************************
1073 *
1074 * EditWndProcW (USER32.@)
1075 */
1076 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1077 {
1078 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1079 }
1080
1081 /*********************************************************************
1082 *
1083 * EditWndProc (USER32.@)
1084 */
1085 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1086 {
1087 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1088 }
1089
1090 /*********************************************************************
1091 *
1092 * EDIT_BuildLineDefs_ML
1093 *
1094 * Build linked list of text lines.
1095 * Lines can end with '\0' (last line), a character (if it is wrapped),
1096 * a soft return '\r\r\n' or a hard return '\r\n'
1097 *
1098 */
1099 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1100 {
1101 HDC dc;
1102 HFONT old_font = 0;
1103 LPWSTR current_position, cp;
1104 INT fw;
1105 LINEDEF *current_line;
1106 LINEDEF *previous_line;
1107 LINEDEF *start_line;
1108 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1109 INT line_count = es->line_count;
1110 INT orig_net_length;
1111 RECT rc;
1112
1113 if (istart == iend && delta == 0)
1114 return;
1115
1116 dc = GetDC(es->hwndSelf);
1117 if (es->font)
1118 old_font = SelectObject(dc, es->font);
1119
1120 previous_line = NULL;
1121 current_line = es->first_line_def;
1122
1123 /* Find starting line. istart must lie inside an existing line or
1124 * at the end of buffer */
1125 do {
1126 if (istart < current_line->index + current_line->length ||
1127 current_line->ending == END_0)
1128 break;
1129
1130 previous_line = current_line;
1131 current_line = current_line->next;
1132 line_index++;
1133 } while (current_line);
1134
1135 if (!current_line) /* Error occurred start is not inside previous buffer */
1136 {
1137 FIXME(" modification occurred outside buffer\n");
1138 ReleaseDC(es->hwndSelf, dc);
1139 return;
1140 }
1141
1142 /* Remember start of modifications in order to calculate update region */
1143 nstart_line = line_index;
1144 nstart_index = current_line->index;
1145
1146 /* We must start to reformat from the previous line since the modifications
1147 * may have caused the line to wrap upwards. */
1148 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1149 {
1150 line_index--;
1151 current_line = previous_line;
1152 }
1153 start_line = current_line;
1154
1155 fw = es->format_rect.right - es->format_rect.left;
1156 current_position = es->text + current_line->index;
1157 do {
1158 if (current_line != start_line)
1159 {
1160 if (!current_line || current_line->index + delta > current_position - es->text)
1161 {
1162 /* The buffer has been expanded, create a new line and
1163 insert it into the link list */
1164 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1165 new_line->next = previous_line->next;
1166 previous_line->next = new_line;
1167 current_line = new_line;
1168 es->line_count++;
1169 }
1170 else if (current_line->index + delta < current_position - es->text)
1171 {
1172 /* The previous line merged with this line so we delete this extra entry */
1173 previous_line->next = current_line->next;
1174 HeapFree(GetProcessHeap(), 0, current_line);
1175 current_line = previous_line->next;
1176 es->line_count--;
1177 continue;
1178 }
1179 else /* current_line->index + delta == current_position */
1180 {
1181 if (current_position - es->text > iend)
1182 break; /* We reached end of line modifications */
1183 /* else recalulate this line */
1184 }
1185 }
1186
1187 current_line->index = current_position - es->text;
1188 orig_net_length = current_line->net_length;
1189
1190 /* Find end of line */
1191 cp = current_position;
1192 while (*cp) {
1193 if (*cp == '\n') break;
1194 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1195 break;
1196 cp++;
1197 }
1198
1199 /* Mark type of line termination */
1200 if (!(*cp)) {
1201 current_line->ending = END_0;
1202 current_line->net_length = strlenW(current_position);
1203 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1204 current_line->ending = END_SOFT;
1205 current_line->net_length = cp - current_position - 1;
1206 } else if (*cp == '\n') {
1207 current_line->ending = END_RICH;
1208 current_line->net_length = cp - current_position;
1209 } else {
1210 current_line->ending = END_HARD;
1211 current_line->net_length = cp - current_position;
1212 }
1213
1214 /* Calculate line width */
1215 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1216 current_position, current_line->net_length,
1217 es->tabs_count, es->tabs));
1218
1219 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1220 if (!(es->style & ES_AUTOHSCROLL)) {
1221 if (current_line->width > fw) {
1222 INT next = 0;
1223 INT prev;
1224 do {
1225 prev = next;
1226 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1227 prev + 1, current_line->net_length, WB_RIGHT);
1228 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1229 current_position, next, es->tabs_count, es->tabs));
1230 } while (current_line->width <= fw);
1231 if (!prev) { /* Didn't find a line break so force a break */
1232 next = 0;
1233 do {
1234 prev = next;
1235 next++;
1236 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1237 current_position, next, es->tabs_count, es->tabs));
1238 } while (current_line->width <= fw);
1239 if (!prev)
1240 prev = 1;
1241 }
1242
1243 /* If the first line we are calculating, wrapped before istart, we must
1244 * adjust istart in order for this to be reflected in the update region. */
1245 if (current_line->index == nstart_index && istart > current_line->index + prev)
1246 istart = current_line->index + prev;
1247 /* else if we are updating the previous line before the first line we
1248 * are re-calculating and it expanded */
1249 else if (current_line == start_line &&
1250 current_line->index != nstart_index && orig_net_length < prev)
1251 {
1252 /* Line expanded due to an upwards line wrap so we must partially include
1253 * previous line in update region */
1254 nstart_line = line_index;
1255 nstart_index = current_line->index;
1256 istart = current_line->index + orig_net_length;
1257 }
1258
1259 current_line->net_length = prev;
1260 current_line->ending = END_WRAP;
1261 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1262 current_line->net_length, es->tabs_count, es->tabs));
1263 }
1264 else if (current_line == start_line &&
1265 current_line->index != nstart_index &&
1266 orig_net_length < current_line->net_length) {
1267 /* The previous line expanded but it's still not as wide as the client rect */
1268 /* The expansion is due to an upwards line wrap so we must partially include
1269 it in the update region */
1270 nstart_line = line_index;
1271 nstart_index = current_line->index;
1272 istart = current_line->index + orig_net_length;
1273 }
1274 }
1275
1276
1277 /* Adjust length to include line termination */
1278 switch (current_line->ending) {
1279 case END_SOFT:
1280 current_line->length = current_line->net_length + 3;
1281 break;
1282 case END_RICH:
1283 current_line->length = current_line->net_length + 1;
1284 break;
1285 case END_HARD:
1286 current_line->length = current_line->net_length + 2;
1287 break;
1288 case END_WRAP:
1289 case END_0:
1290 current_line->length = current_line->net_length;
1291 break;
1292 }
1293 es->text_width = max(es->text_width, current_line->width);
1294 current_position += current_line->length;
1295 previous_line = current_line;
1296 current_line = current_line->next;
1297 line_index++;
1298 } while (previous_line->ending != END_0);
1299
1300 /* Finish adjusting line indexes by delta or remove hanging lines */
1301 if (previous_line->ending == END_0)
1302 {
1303 LINEDEF *pnext = NULL;
1304
1305 previous_line->next = NULL;
1306 while (current_line)
1307 {
1308 pnext = current_line->next;
1309 HeapFree(GetProcessHeap(), 0, current_line);
1310 current_line = pnext;
1311 es->line_count--;
1312 }
1313 }
1314 else if (delta != 0)
1315 {
1316 while (current_line)
1317 {
1318 current_line->index += delta;
1319 current_line = current_line->next;
1320 }
1321 }
1322
1323 /* Calculate rest of modification rectangle */
1324 if (hrgn)
1325 {
1326 HRGN tmphrgn;
1327 /*
1328 * We calculate two rectangles. One for the first line which may have
1329 * an indent with respect to the format rect. The other is a format-width
1330 * rectangle that spans the rest of the lines that changed or moved.
1331 */
1332 rc.top = es->format_rect.top + nstart_line * es->line_height -
1333 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1334 rc.bottom = rc.top + es->line_height;
1335 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1336 rc.left = es->format_rect.left;
1337 else
1338 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1339 es->text + nstart_index, istart - nstart_index,
1340 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1341 rc.right = es->format_rect.right;
1342 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1343
1344 rc.top = rc.bottom;
1345 rc.left = es->format_rect.left;
1346 rc.right = es->format_rect.right;
1347 /*
1348 * If lines were added or removed we must re-paint the remainder of the
1349 * lines since the remaining lines were either shifted up or down.
1350 */
1351 if (line_count < es->line_count) /* We added lines */
1352 rc.bottom = es->line_count * es->line_height;
1353 else if (line_count > es->line_count) /* We removed lines */
1354 rc.bottom = line_count * es->line_height;
1355 else
1356 rc.bottom = line_index * es->line_height;
1357 rc.bottom += es->format_rect.top;
1358 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1359 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1360 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1361 DeleteObject(tmphrgn);
1362 }
1363
1364 if (es->font)
1365 SelectObject(dc, old_font);
1366
1367 ReleaseDC(es->hwndSelf, dc);
1368 }
1369
1370 /*********************************************************************
1371 *
1372 * EDIT_CalcLineWidth_SL
1373 *
1374 */
1375 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1376 {
1377 SIZE size;
1378 LPWSTR text;
1379 HDC dc;
1380 HFONT old_font = 0;
1381
1382 text = EDIT_GetPasswordPointer_SL(es);
1383
1384 dc = GetDC(es->hwndSelf);
1385 if (es->font)
1386 old_font = SelectObject(dc, es->font);
1387
1388 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1389
1390 if (es->font)
1391 SelectObject(dc, old_font);
1392 ReleaseDC(es->hwndSelf, dc);
1393
1394 if (es->style & ES_PASSWORD)
1395 HeapFree(GetProcessHeap(), 0, text);
1396
1397 es->text_width = size.cx;
1398 }
1399
1400 /*********************************************************************
1401 *
1402 * EDIT_CallWordBreakProc
1403 *
1404 * Call appropriate WordBreakProc (internal or external).
1405 *
1406 * Note: The "start" argument should always be an index referring
1407 * to es->text. The actual wordbreak proc might be
1408 * 16 bit, so we can't always pass any 32 bit LPSTR.
1409 * Hence we assume that es->text is the buffer that holds
1410 * the string under examination (we can decide this for ourselves).
1411 *
1412 */
1413 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1414 {
1415 INT ret;
1416
1417 if (es->word_break_proc16) {
1418 HGLOBAL16 hglob16;
1419 SEGPTR segptr;
1420 INT countA;
1421 WORD args[5];
1422 DWORD result;
1423
1424 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1425 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1426 segptr = WOWGlobalLock16(hglob16);
1427 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1428 args[4] = SELECTOROF(segptr);
1429 args[3] = OFFSETOF(segptr);
1430 args[2] = index;
1431 args[1] = countA;
1432 args[0] = action;
1433 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1434 ret = LOWORD(result);
1435 GlobalUnlock16(hglob16);
1436 GlobalFree16(hglob16);
1437 }
1438 else if (es->word_break_proc)
1439 {
1440 if(es->is_unicode)
1441 {
1442 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1443
1444 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1445 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1446 ret = wbpW(es->text + start, index, count, action);
1447 }
1448 else
1449 {
1450 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1451 INT countA;
1452 CHAR *textA;
1453
1454 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1455 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1456 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1457 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1458 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1459 ret = wbpA(textA, index, countA, action);
1460 HeapFree(GetProcessHeap(), 0, textA);
1461 }
1462 }
1463 else
1464 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1465
1466 return ret;
1467 }
1468
1469
1470 /*********************************************************************
1471 *
1472 * EDIT_CharFromPos
1473 *
1474 * Beware: This is not the function called on EM_CHARFROMPOS
1475 * The position _can_ be outside the formatting / client
1476 * rectangle
1477 * The return value is only the character index
1478 *
1479 */
1480 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1481 {
1482 INT index;
1483 HDC dc;
1484 HFONT old_font = 0;
1485 INT x_high = 0, x_low = 0;
1486
1487 if (es->style & ES_MULTILINE) {
1488 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1489 INT line_index = 0;
1490 LINEDEF *line_def = es->first_line_def;
1491 INT low, high;
1492 while ((line > 0) && line_def->next) {
1493 line_index += line_def->length;
1494 line_def = line_def->next;
1495 line--;
1496 }
1497 x += es->x_offset - es->format_rect.left;
1498 if (es->style & ES_RIGHT)
1499 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1500 else if (es->style & ES_CENTER)
1501 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1502 if (x >= line_def->width) {
1503 if (after_wrap)
1504 *after_wrap = (line_def->ending == END_WRAP);
1505 return line_index + line_def->net_length;
1506 }
1507 if (x <= 0) {
1508 if (after_wrap)
1509 *after_wrap = FALSE;
1510 return line_index;
1511 }
1512 dc = GetDC(es->hwndSelf);
1513 if (es->font)
1514 old_font = SelectObject(dc, es->font);
1515 low = line_index;
1516 high = line_index + line_def->net_length + 1;
1517 while (low < high - 1)
1518 {
1519 INT mid = (low + high) / 2;
1520 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1521 if (x_now > x) {
1522 high = mid;
1523 x_high = x_now;
1524 } else {
1525 low = mid;
1526 x_low = x_now;
1527 }
1528 }
1529 if (abs(x_high - x) + 1 <= abs(x_low - x))
1530 index = high;
1531 else
1532 index = low;
1533
1534 if (after_wrap)
1535 *after_wrap = ((index == line_index + line_def->net_length) &&
1536 (line_def->ending == END_WRAP));
1537 } else {
1538 LPWSTR text;
1539 SIZE size;
1540 if (after_wrap)
1541 *after_wrap = FALSE;
1542 x -= es->format_rect.left;
1543 if (!x)
1544 return es->x_offset;
1545
1546 if (!es->x_offset)
1547 {
1548 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1549 if (es->style & ES_RIGHT)
1550 x -= indent;
1551 else if (es->style & ES_CENTER)
1552 x -= indent / 2;
1553 }
1554
1555 text = EDIT_GetPasswordPointer_SL(es);
1556 dc = GetDC(es->hwndSelf);
1557 if (es->font)
1558 old_font = SelectObject(dc, es->font);
1559 if (x < 0)
1560 {
1561 INT low = 0;
1562 INT high = es->x_offset;
1563 while (low < high - 1)
1564 {
1565 INT mid = (low + high) / 2;
1566 GetTextExtentPoint32W( dc, text + mid,
1567 es->x_offset - mid, &size );
1568 if (size.cx > -x) {
1569 low = mid;
1570 x_low = size.cx;
1571 } else {
1572 high = mid;
1573 x_high = size.cx;
1574 }
1575 }
1576 if (abs(x_high + x) <= abs(x_low + x) + 1)
1577 index = high;
1578 else
1579 index = low;
1580 }
1581 else
1582 {
1583 INT low = es->x_offset;
1584 INT high = get_text_length(es) + 1;
1585 while (low < high - 1)
1586 {
1587 INT mid = (low + high) / 2;
1588 GetTextExtentPoint32W( dc, text + es->x_offset,
1589 mid - es->x_offset, &size );
1590 if (size.cx > x) {
1591 high = mid;
1592 x_high = size.cx;
1593 } else {
1594 low = mid;
1595 x_low = size.cx;
1596 }
1597 }
1598 if (abs(x_high - x) <= abs(x_low - x) + 1)
1599 index = high;
1600 else
1601 index = low;
1602 }
1603 if (es->style & ES_PASSWORD)
1604 HeapFree(GetProcessHeap(), 0, text);
1605 }
1606 if (es->font)
1607 SelectObject(dc, old_font);
1608 ReleaseDC(es->hwndSelf, dc);
1609 return index;
1610 }
1611
1612
1613 /*********************************************************************
1614 *
1615 * EDIT_ConfinePoint
1616 *
1617 * adjusts the point to be within the formatting rectangle
1618 * (so CharFromPos returns the nearest _visible_ character)
1619 *
1620 */
1621 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
1622 {
1623 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1624 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1625 }
1626
1627
1628 /*********************************************************************
1629 *
1630 * EDIT_GetLineRect
1631 *
1632 * Calculates the bounding rectangle for a line from a starting
1633 * column to an ending column.
1634 *
1635 */
1636 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1637 {
1638 INT line_index = EDIT_EM_LineIndex(es, line);
1639
1640 if (es->style & ES_MULTILINE)
1641 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1642 else
1643 rc->top = es->format_rect.top;
1644 rc->bottom = rc->top + es->line_height;
1645 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1646 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1647 }
1648
1649
1650 /*********************************************************************
1651 *
1652 * EDIT_GetPasswordPointer_SL
1653 *
1654 * note: caller should free the (optionally) allocated buffer
1655 *
1656 */
1657 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1658 {
1659 if (es->style & ES_PASSWORD) {
1660 INT len = get_text_length(es);
1661 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1662 text[len] = '\0';
1663 while(len) text[--len] = es->password_char;
1664 return text;
1665 } else
1666 return es->text;
1667 }
1668
1669
1670 /*********************************************************************
1671 *
1672 * EDIT_LockBuffer
1673 *
1674 * This acts as a LocalLock16(), but it locks only once. This way
1675 * you can call it whenever you like, without unlocking.
1676 *
1677 * Initially the edit control allocates a HLOCAL32 buffer
1678 * (32 bit linear memory handler). However, 16 bit application
1679 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1680 * handler). From that moment on we have to keep using this 16 bit memory
1681 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1682 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1683 * conversion.
1684 *
1685 */
1686 static void EDIT_LockBuffer(EDITSTATE *es)
1687 {
1688 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
1689 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1690
1691 if (!es->text) {
1692 CHAR *textA = NULL;
1693 UINT countA = 0;
1694 BOOL _16bit = FALSE;
1695
1696 if(es->hloc32W)
1697 {
1698 if(es->hloc32A)
1699 {
1700 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1701 textA = LocalLock(es->hloc32A);
1702 countA = strlen(textA) + 1;
1703 }
1704 else if(es->hloc16)
1705 {
1706 HANDLE16 oldDS = stack16->ds;
1707 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1708 stack16->ds = hInstance;
1709 textA = MapSL(LocalLock16(es->hloc16));
1710 stack16->ds = oldDS;
1711 countA = strlen(textA) + 1;
1712 _16bit = TRUE;
1713 }
1714 }
1715 else {
1716 ERR("no buffer ... please report\n");
1717 return;
1718 }
1719
1720 if(textA)
1721 {
1722 HLOCAL hloc32W_new;
1723 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1724 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1725 if(countW_new > es->buffer_size + 1)
1726 {
1727 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1728 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1729 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1730 if(hloc32W_new)
1731 {
1732 es->hloc32W = hloc32W_new;
1733 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1734 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1735 }
1736 else
1737 WARN("FAILED! Will synchronize partially\n");
1738 }
1739 }
1740
1741 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1742 es->text = LocalLock(es->hloc32W);
1743
1744 if(textA)
1745 {
1746 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1747 if(_16bit)
1748 {
1749 HANDLE16 oldDS = stack16->ds;
1750 stack16->ds = hInstance;
1751 LocalUnlock16(es->hloc16);
1752 stack16->ds = oldDS;
1753 }
1754 else
1755 LocalUnlock(es->hloc32A);
1756 }
1757 }
1758 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1759 es->lock_count++;
1760 }
1761
1762
1763 /*********************************************************************
1764 *
1765 * EDIT_SL_InvalidateText
1766 *
1767 * Called from EDIT_InvalidateText().
1768 * Does the job for single-line controls only.
1769 *
1770 */
1771 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1772 {
1773 RECT line_rect;
1774 RECT rc;
1775
1776 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1777 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1778 EDIT_UpdateText(es, &rc, TRUE);
1779 }
1780
1781
1782 /*********************************************************************
1783 *
1784 * EDIT_ML_InvalidateText
1785 *
1786 * Called from EDIT_InvalidateText().
1787 * Does the job for multi-line controls only.
1788 *
1789 */
1790 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1791 {
1792 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1793 INT sl = EDIT_EM_LineFromChar(es, start);
1794 INT el = EDIT_EM_LineFromChar(es, end);
1795 INT sc;
1796 INT ec;
1797 RECT rc1;
1798 RECT rcWnd;
1799 RECT rcLine;
1800 RECT rcUpdate;
1801 INT l;
1802
1803 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1804 return;
1805
1806 sc = start - EDIT_EM_LineIndex(es, sl);
1807 ec = end - EDIT_EM_LineIndex(es, el);
1808 if (sl < es->y_offset) {
1809 sl = es->y_offset;
1810 sc = 0;
1811 }
1812 if (el > es->y_offset + vlc) {
1813 el = es->y_offset + vlc;
1814 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1815 }
1816 GetClientRect(es->hwndSelf, &rc1);
1817 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1818 if (sl == el) {
1819 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1820 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1821 EDIT_UpdateText(es, &rcUpdate, TRUE);
1822 } else {
1823 EDIT_GetLineRect(es, sl, sc,
1824 EDIT_EM_LineLength(es,
1825 EDIT_EM_LineIndex(es, sl)),
1826 &rcLine);
1827 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1828 EDIT_UpdateText(es, &rcUpdate, TRUE);
1829 for (l = sl + 1 ; l < el ; l++) {
1830 EDIT_GetLineRect(es, l, 0,
1831 EDIT_EM_LineLength(es,
1832 EDIT_EM_LineIndex(es, l)),
1833 &rcLine);
1834 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1835 EDIT_UpdateText(es, &rcUpdate, TRUE);
1836 }
1837 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1838 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1839 EDIT_UpdateText(es, &rcUpdate, TRUE);
1840 }
1841 }
1842
1843
1844 /*********************************************************************
1845 *
1846 * EDIT_InvalidateText
1847 *
1848 * Invalidate the text from offset start up to, but not including,
1849 * offset end. Useful for (re)painting the selection.
1850 * Regions outside the linewidth are not invalidated.
1851 * end == -1 means end == TextLength.
1852 * start and end need not be ordered.
1853 *
1854 */
1855 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1856 {
1857 if (end == start)
1858 return;
1859
1860 if (end == -1)
1861 end = get_text_length(es);
1862
1863 if (end < start) {
1864 INT tmp = start;
1865 start = end;
1866 end = tmp;
1867 }
1868
1869 if (es->style & ES_MULTILINE)
1870 EDIT_ML_InvalidateText(es, start, end);
1871 else
1872 EDIT_SL_InvalidateText(es, start, end);
1873 }
1874
1875
1876 /*********************************************************************
1877 *
1878 * EDIT_MakeFit
1879 *
1880 * Try to fit size + 1 characters in the buffer.
1881 */
1882 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1883 {
1884 HLOCAL hNew32W;
1885
1886 if (size <= es->buffer_size)
1887 return TRUE;
1888
1889 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1890
1891 /* Force edit to unlock it's buffer. es->text now NULL */
1892 EDIT_UnlockBuffer(es, TRUE);
1893
1894 if (es->hloc32W) {
1895 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1896 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1897 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1898 es->hloc32W = hNew32W;
1899 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1900 }
1901 }
1902
1903 EDIT_LockBuffer(es);
1904
1905 if (es->buffer_size < size) {
1906 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1907 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1908 return FALSE;
1909 } else {
1910 TRACE("We now have %d+1\n", es->buffer_size);
1911 return TRUE;
1912 }
1913 }
1914
1915
1916 /*********************************************************************
1917 *
1918 * EDIT_MakeUndoFit
1919 *
1920 * Try to fit size + 1 bytes in the undo buffer.
1921 *
1922 */
1923 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1924 {
1925 UINT alloc_size;
1926
1927 if (size <= es->undo_buffer_size)
1928 return TRUE;
1929
1930 TRACE("trying to ReAlloc to %d+1\n", size);
1931
1932 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1933 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1934 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1935 return TRUE;
1936 }
1937 else
1938 {
1939 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1940 return FALSE;
1941 }
1942 }
1943
1944
1945 /*********************************************************************
1946 *
1947 * EDIT_MoveBackward
1948 *
1949 */
1950 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1951 {
1952 INT e = es->selection_end;
1953
1954 if (e) {
1955 e--;
1956 if ((es->style & ES_MULTILINE) && e &&
1957 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1958 e--;
1959 if (e && (es->text[e - 1] == '\r'))
1960 e--;
1961 }
1962 }
1963 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1964 EDIT_EM_ScrollCaret(es);
1965 }
1966
1967
1968 /*********************************************************************
1969 *
1970 * EDIT_MoveDown_ML
1971 *
1972 * Only for multi line controls
1973 * Move the caret one line down, on a column with the nearest
1974 * x coordinate on the screen (might be a different column).
1975 *
1976 */
1977 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1978 {
1979 INT s = es->selection_start;
1980 INT e = es->selection_end;
1981 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1982 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1983 INT x = (short)LOWORD(pos);
1984 INT y = (short)HIWORD(pos);
1985
1986 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1987 if (!extend)
1988 s = e;
1989 EDIT_EM_SetSel(es, s, e, after_wrap);
1990 EDIT_EM_ScrollCaret(es);
1991 }
1992
1993
1994 /*********************************************************************
1995 *
1996 * EDIT_MoveEnd
1997 *
1998 */
1999 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
2000 {
2001 BOOL after_wrap = FALSE;
2002 INT e;
2003
2004 /* Pass a high value in x to make sure of receiving the end of the line */
2005 if (!ctrl && (es->style & ES_MULTILINE))
2006 e = EDIT_CharFromPos(es, 0x3fffffff,
2007 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2008 else
2009 e = get_text_length(es);
2010 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2011 EDIT_EM_ScrollCaret(es);
2012 }
2013
2014
2015 /*********************************************************************
2016 *
2017 * EDIT_MoveForward
2018 *
2019 */
2020 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2021 {
2022 INT e = es->selection_end;
2023
2024 if (es->text[e]) {
2025 e++;
2026 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2027 if (es->text[e] == '\n')
2028 e++;
2029 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2030 e += 2;
2031 }
2032 }
2033 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2034 EDIT_EM_ScrollCaret(es);
2035 }
2036
2037
2038 /*********************************************************************
2039 *
2040 * EDIT_MoveHome
2041 *
2042 * Home key: move to beginning of line.
2043 *
2044 */
2045 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
2046 {
2047 INT e;
2048
2049 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2050 if (!ctrl && (es->style & ES_MULTILINE))
2051 e = EDIT_CharFromPos(es, -es->x_offset,
2052 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2053 else
2054 e = 0;
2055 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2056 EDIT_EM_ScrollCaret(es);
2057 }
2058
2059
2060 /*********************************************************************
2061 *
2062 * EDIT_MovePageDown_ML
2063 *
2064 * Only for multi line controls
2065 * Move the caret one page down, on a column with the nearest
2066 * x coordinate on the screen (might be a different column).
2067 *
2068 */
2069 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2070 {
2071 INT s = es->selection_start;
2072 INT e = es->selection_end;
2073 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2074 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2075 INT x = (short)LOWORD(pos);
2076 INT y = (short)HIWORD(pos);
2077
2078 e = EDIT_CharFromPos(es, x,
2079 y + (es->format_rect.bottom - es->format_rect.top),
2080 &after_wrap);
2081 if (!extend)
2082 s = e;
2083 EDIT_EM_SetSel(es, s, e, after_wrap);
2084 EDIT_EM_ScrollCaret(es);
2085 }
2086
2087
2088 /*********************************************************************
2089 *
2090 * EDIT_MovePageUp_ML
2091 *
2092 * Only for multi line controls
2093 * Move the caret one page up, on a column with the nearest
2094 * x coordinate on the screen (might be a different column).
2095 *
2096 */
2097 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2098 {
2099 INT s = es->selection_start;
2100 INT e = es->selection_end;
2101 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2102 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2103 INT x = (short)LOWORD(pos);
2104 INT y = (short)HIWORD(pos);
2105
2106 e = EDIT_CharFromPos(es, x,
2107 y - (es->format_rect.bottom - es->format_rect.top),
2108 &after_wrap);
2109 if (!extend)
2110 s = e;
2111 EDIT_EM_SetSel(es, s, e, after_wrap);
2112 EDIT_EM_ScrollCaret(es);
2113 }
2114
2115
2116 /*********************************************************************
2117 *
2118 * EDIT_MoveUp_ML
2119 *
2120 * Only for multi line controls
2121 * Move the caret one line up, on a column with the nearest
2122 * x coordinate on the screen (might be a different column).
2123 *
2124 */
2125 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2126 {
2127 INT s = es->selection_start;
2128 INT e = es->selection_end;
2129 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2130 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2131 INT x = (short)LOWORD(pos);
2132 INT y = (short)HIWORD(pos);
2133
2134 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2135 if (!extend)
2136 s = e;
2137 EDIT_EM_SetSel(es, s, e, after_wrap);
2138 EDIT_EM_ScrollCaret(es);
2139 }
2140
2141
2142 /*********************************************************************
2143 *
2144 * EDIT_MoveWordBackward
2145 *
2146 */
2147 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2148 {
2149 INT s = es->selection_start;
2150 INT e = es->selection_end;
2151 INT l;
2152 INT ll;
2153 INT li;
2154
2155 l = EDIT_EM_LineFromChar(es, e);
2156 ll = EDIT_EM_LineLength(es, e);
2157 li = EDIT_EM_LineIndex(es, l);
2158 if (e - li == 0) {
2159 if (l) {
2160 li = EDIT_EM_LineIndex(es, l - 1);
2161 e = li + EDIT_EM_LineLength(es, li);
2162 }
2163 } else {
2164 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2165 }
2166 if (!extend)
2167 s = e;
2168 EDIT_EM_SetSel(es, s, e, FALSE);
2169 EDIT_EM_ScrollCaret(es);
2170 }
2171
2172
2173 /*********************************************************************
2174 *
2175 * EDIT_MoveWordForward
2176 *
2177 */
2178 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2179 {
2180 INT s = es->selection_start;
2181 INT e = es->selection_end;
2182 INT l;
2183 INT ll;
2184 INT li;
2185
2186 l = EDIT_EM_LineFromChar(es, e);
2187 ll = EDIT_EM_LineLength(es, e);
2188 li = EDIT_EM_LineIndex(es, l);
2189 if (e - li == ll) {
2190 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2191 e = EDIT_EM_LineIndex(es, l + 1);
2192 } else {
2193 e = li + EDIT_CallWordBreakProc(es,
2194 li, e - li + 1, ll, WB_RIGHT);
2195 }
2196 if (!extend)
2197 s = e;
2198 EDIT_EM_SetSel(es, s, e, FALSE);
2199 EDIT_EM_ScrollCaret(es);
2200 }
2201
2202
2203 /*********************************************************************
2204 *
2205 * EDIT_PaintLine
2206 *
2207 */
2208 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2209 {
2210 INT s = es->selection_start;
2211 INT e = es->selection_end;
2212 INT li;
2213 INT ll;
2214 INT x;
2215 INT y;
2216 LRESULT pos;
2217
2218 if (es->style & ES_MULTILINE) {
2219 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2220 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2221 return;
2222 } else if (line)
2223 return;
2224
2225 TRACE("line=%d\n", line);
2226
2227 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2228 x = (short)LOWORD(pos);
2229 y = (short)HIWORD(pos);
2230 li = EDIT_EM_LineIndex(es, line);
2231 ll = EDIT_EM_LineLength(es, li);
2232 s = min(es->selection_start, es->selection_end);
2233 e = max(es->selection_start, es->selection_end);
2234 s = min(li + ll, max(li, s));
2235 e = min(li + ll, max(li, e));
2236 if (rev && (s != e) &&
2237 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2238 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2239 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2240 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2241 } else
2242 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2243 }
2244
2245
2246 /*********************************************************************
2247 *
2248 * EDIT_PaintText
2249 *
2250 */
2251 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2252 {
2253 COLORREF BkColor;
2254 COLORREF TextColor;
2255 LOGFONTW underline_font;
2256 HFONT hUnderline = 0;
2257 HFONT old_font = 0;
2258 INT ret;
2259 INT li;
2260 INT BkMode;
2261 SIZE size;
2262
2263 if (!count)
2264 return 0;
2265 BkMode = GetBkMode(dc);
2266 BkColor = GetBkColor(dc);
2267 TextColor = GetTextColor(dc);
2268 if (rev) {
2269 if (es->composition_len == 0)
2270 {
2271 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2272 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2273 SetBkMode( dc, OPAQUE);
2274 }
2275 else
2276 {
2277 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2278 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2279 underline_font.lfUnderline = TRUE;
2280 hUnderline = CreateFontIndirectW(&underline_font);
2281 old_font = SelectObject(dc,hUnderline);
2282 }
2283 }
2284 li = EDIT_EM_LineIndex(es, line);
2285 if (es->style & ES_MULTILINE) {
2286 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2287 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2288 } else {
2289 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2290 TextOutW(dc, x, y, text + li + col, count);
2291 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2292 ret = size.cx;
2293 if (es->style & ES_PASSWORD)
2294 HeapFree(GetProcessHeap(), 0, text);
2295 }
2296 if (rev) {
2297 if (es->composition_len == 0)
2298 {
2299 SetBkColor(dc, BkColor);
2300 SetTextColor(dc, TextColor);
2301 SetBkMode( dc, BkMode);
2302 }
2303 else
2304 {
2305 if (old_font)
2306 SelectObject(dc,old_font);
2307 if (hUnderline)
2308 DeleteObject(hUnderline);
2309 }
2310 }
2311 return ret;
2312 }
2313
2314
2315 /*********************************************************************
2316 *
2317 * EDIT_SetCaretPos
2318 *
2319 */
2320 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2321 BOOL after_wrap)
2322 {
2323 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2324 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2325 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2326 }
2327
2328
2329 /*********************************************************************
2330 *
2331 * EDIT_AdjustFormatRect
2332 *
2333 * Adjusts the format rectangle for the current font and the
2334 * current client rectangle.
2335 *
2336 */
2337 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2338 {
2339 RECT ClientRect;
2340
2341 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2342 if (es->style & ES_MULTILINE)
2343 {
2344 INT fw, vlc, max_x_offset, max_y_offset;
2345
2346 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2347 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2348
2349 /* correct es->x_offset */
2350 fw = es->format_rect.right - es->format_rect.left;
2351 max_x_offset = es->text_width - fw;
2352 if(max_x_offset < 0) max_x_offset = 0;
2353 if(es->x_offset > max_x_offset)
2354 es->x_offset = max_x_offset;
2355
2356 /* correct es->y_offset */
2357 max_y_offset = es->line_count - vlc;
2358 if(max_y_offset < 0) max_y_offset = 0;
2359 if(es->y_offset > max_y_offset)
2360 es->y_offset = max_y_offset;
2361
2362 /* force scroll info update */
2363 EDIT_UpdateScrollInfo(es);
2364 }
2365 else
2366 /* Windows doesn't care to fix text placement for SL controls */
2367 es->format_rect.bottom = es->format_rect.top + es->line_height;
2368
2369 /* Always stay within the client area */
2370 GetClientRect(es->hwndSelf, &ClientRect);
2371 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2372
2373 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2374 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2375
2376 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2377 }
2378
2379
2380 /*********************************************************************
2381 *
2382 * EDIT_SetRectNP
2383 *
2384 * note: this is not (exactly) the handler called on EM_SETRECTNP
2385 * it is also used to set the rect of a single line control
2386 *
2387 */
2388 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2389 {
2390 LONG_PTR ExStyle;
2391 INT bw, bh;
2392 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2393
2394 CopyRect(&es->format_rect, rc);
2395
2396 if (ExStyle & WS_EX_CLIENTEDGE) {
2397 es->format_rect.left++;
2398 es->format_rect.right--;
2399
2400 if (es->format_rect.bottom - es->format_rect.top
2401 >= es->line_height + 2)
2402 {
2403 es->format_rect.top++;
2404 es->format_rect.bottom--;
2405 }
2406 }
2407 else if (es->style & WS_BORDER) {
2408 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2409 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2410 es->format_rect.left += bw;
2411 es->format_rect.right -= bw;
2412 if (es->format_rect.bottom - es->format_rect.top
2413 >= es->line_height + 2 * bh)
2414 {
2415 es->format_rect.top += bh;
2416 es->format_rect.bottom -= bh;
2417 }
2418 }
2419
2420 es->format_rect.left += es->left_margin;
2421 es->format_rect.right -= es->right_margin;
2422 EDIT_AdjustFormatRect(es);
2423 }
2424
2425
2426 /*********************************************************************
2427 *
2428 * EDIT_UnlockBuffer
2429 *
2430 */
2431 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2432 {
2433
2434 /* Edit window might be already destroyed */
2435 if(!IsWindow(es->hwndSelf))
2436 {
2437 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2438 return;
2439 }
2440
2441 if (!es->lock_count) {
2442 ERR("lock_count == 0 ... please report\n");
2443 return;
2444 }
2445 if (!es->text) {
2446 ERR("es->text == 0 ... please report\n");
2447 return;
2448 }
2449
2450 if (force || (es->lock_count == 1)) {
2451 if (es->hloc32W) {
2452 CHAR *textA = NULL;
2453 UINT countA = 0;
2454 UINT countW = get_text_length(es) + 1;
2455 STACK16FRAME* stack16 = NULL;
2456 HANDLE16 oldDS = 0;
2457
2458 if(es->hloc32A)
2459 {
2460 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2461 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2462 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2463 countA = LocalSize(es->hloc32A);
2464 if(countA_new > countA)
2465 {
2466 HLOCAL hloc32A_new;
2467 UINT alloc_size = ROUND_TO_GROW(countA_new);
2468 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2469 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2470 if(hloc32A_new)
2471 {
2472 es->hloc32A = hloc32A_new;
2473 countA = LocalSize(hloc32A_new);
2474 TRACE("Real new size %d bytes\n", countA);
2475 }
2476 else
2477 WARN("FAILED! Will synchronize partially\n");
2478 }
2479 textA = LocalLock(es->hloc32A);
2480 }
2481 else if(es->hloc16)
2482 {
2483 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2484
2485 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2486 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2487
2488 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2489 oldDS = stack16->ds;
2490 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2491
2492 countA = LocalSize16(es->hloc16);
2493 if(countA_new > countA)
2494 {
2495 HLOCAL16 hloc16_new;
2496 UINT alloc_size = ROUND_TO_GROW(countA_new);
2497 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2498 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2499 if(hloc16_new)
2500 {
2501 es->hloc16 = hloc16_new;
2502 countA = LocalSize16(hloc16_new);
2503 TRACE("Real new size %d bytes\n", countA);
2504 }
2505 else
2506 WARN("FAILED! Will synchronize partially\n");
2507 }
2508 textA = MapSL(LocalLock16(es->hloc16));
2509 }
2510
2511 if(textA)
2512 {
2513 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2514 if(stack16)
2515 LocalUnlock16(es->hloc16);
2516 else
2517 LocalUnlock(es->hloc32A);
2518 }
2519
2520 if (stack16) stack16->ds = oldDS;
2521 LocalUnlock(es->hloc32W);
2522 es->text = NULL;
2523 }
2524 else {
2525 ERR("no buffer ... please report\n");
2526 return;
2527 }
2528 }
2529 es->lock_count--;
2530 }
2531
2532
2533 /*********************************************************************
2534 *
2535 * EDIT_UpdateScrollInfo
2536 *
2537 */
2538 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2539 {
2540 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2541 {
2542 SCROLLINFO si;
2543 si.cbSize = sizeof(SCROLLINFO);
2544 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2545 si.nMin = 0;
2546 si.nMax = es->line_count - 1;
2547 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2548 si.nPos = es->y_offset;
2549 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2550 si.nMin, si.nMax, si.nPage, si.nPos);
2551 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2552 }
2553
2554 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2555 {
2556 SCROLLINFO si;
2557 si.cbSize = sizeof(SCROLLINFO);
2558 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2559 si.nMin = 0;
2560 si.nMax = es->text_width - 1;
2561 si.nPage = es->format_rect.right - es->format_rect.left;
2562 si.nPos = es->x_offset;
2563 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2564 si.nMin, si.nMax, si.nPage, si.nPos);
2565 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2566 }
2567 }
2568
2569 /*********************************************************************
2570 *
2571 * EDIT_WordBreakProc
2572 *
2573 * Find the beginning of words.
2574 * Note: unlike the specs for a WordBreakProc, this function only
2575 * allows to be called without linebreaks between s[0] up to
2576 * s[count - 1]. Remember it is only called
2577 * internally, so we can decide this for ourselves.
2578 *
2579 */
2580 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2581 {
2582 INT ret = 0;
2583
2584 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2585
2586 if(!s) return 0;
2587
2588 switch (action) {
2589 case WB_LEFT:
2590 if (!count)
2591 break;
2592 if (index)
2593 index--;
2594 if (s[index] == ' ') {
2595 while (index && (s[index] == ' '))
2596 index--;
2597 if (index) {
2598 while (index && (s[index] != ' '))
2599 index--;
2600 if (s[index] == ' ')
2601 index++;
2602 }
2603 } else {
2604 while (index && (s[index] != ' '))
2605 index--;
2606 if (s[index] == ' ')
2607 index++;
2608 }
2609 ret = index;
2610 break;
2611 case WB_RIGHT:
2612 if (!count)
2613 break;
2614 if (index)
2615 index--;
2616 if (s[index] == ' ')
2617 while ((index < count) && (s[index] == ' ')) index++;
2618 else {
2619 while (s[index] && (s[index] != ' ') && (index < count))
2620 index++;
2621 while ((s[index] == ' ') && (index < count)) index++;
2622 }
2623 ret = index;
2624 break;
2625 case WB_ISDELIMITER:
2626 ret = (s[index] == ' ');
2627 break;
2628 default:
2629 ERR("unknown action code, please report !\n");
2630 break;
2631 }
2632 return ret;
2633 }
2634
2635
2636 /*********************************************************************
2637 *
2638 * EM_CHARFROMPOS
2639 *
2640 * returns line number (not index) in high-order word of result.
2641 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2642 * to Richedit, not to the edit control. Original documentation is valid.
2643 * FIXME: do the specs mean to return -1 if outside client area or
2644 * if outside formatting rectangle ???
2645 *
2646 */
2647 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2648 {
2649 POINT pt;
2650 RECT rc;
2651 INT index;
2652
2653 pt.x = x;
2654 pt.y = y;
2655 GetClientRect(es->hwndSelf, &rc);
2656 if (!PtInRect(&rc, pt))
2657 return -1;
2658
2659 index = EDIT_CharFromPos(es, x, y, NULL);
2660 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2661 }
2662
2663
2664 /*********************************************************************
2665 *
2666 * EM_FMTLINES
2667 *
2668 * Enable or disable soft breaks.
2669 *
2670 * This means: insert or remove the soft linebreak character (\r\r\n).
2671 * Take care to check if the text still fits the buffer after insertion.
2672 * If not, notify with EN_ERRSPACE.
2673 *
2674 */
2675 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2676 {
2677 es->flags &= ~EF_USE_SOFTBRK;
2678 if (add_eol) {
2679 es->flags |= EF_USE_SOFTBRK;
2680 FIXME("soft break enabled, not implemented\n");
2681 }
2682 return add_eol;
2683 }
2684
2685
2686 /*********************************************************************
2687 *
2688 * EM_GETHANDLE
2689 *
2690 * Hopefully this won't fire back at us.
2691 * We always start with a fixed buffer in the local heap.
2692 * Despite of the documentation says that the local heap is used
2693 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2694 * buffer on the local heap.
2695 *
2696 */
2697 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2698 {
2699 HLOCAL hLocal;
2700
2701 if (!(es->style & ES_MULTILINE))
2702 return 0;
2703
2704 if(es->is_unicode)
2705 hLocal = es->hloc32W;
2706 else
2707 {
2708 if(!es->hloc32A)
2709 {
2710 CHAR *textA;
2711 UINT countA, alloc_size;
2712 TRACE("Allocating 32-bit ANSI alias buffer\n");
2713 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2714 alloc_size = ROUND_TO_GROW(countA);
2715 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2716 {
2717 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2718 return 0;
2719 }
2720 textA = LocalLock(es->hloc32A);
2721 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2722 LocalUnlock(es->hloc32A);
2723 }
2724 hLocal = es->hloc32A;
2725 }
2726
2727 es->flags |= EF_APP_HAS_HANDLE;
2728 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2729 return hLocal;
2730 }
2731
2732
2733 /*********************************************************************
2734 *
2735 * EM_GETHANDLE16
2736 *
2737 * Hopefully this won't fire back at us.
2738 * We always start with a buffer in 32 bit linear memory.
2739 * However, with this message a 16 bit application requests
2740 * a handle of 16 bit local heap memory, where it expects to find
2741 * the text.
2742 * It's a pitty that from this moment on we have to use this
2743 * local heap, because applications may rely on the handle
2744 * in the future.
2745 *
2746 * In this function we'll try to switch to local heap.
2747 */
2748 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2749 {
2750 CHAR *textA;
2751 UINT countA, alloc_size;
2752 STACK16FRAME* stack16;
2753 HANDLE16 oldDS;
2754
2755 if (!(es->style & ES_MULTILINE))
2756 return 0;
2757
2758 if (es->hloc16)
2759 return es->hloc16;
2760
2761 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2762 oldDS = stack16->ds;
2763 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2764
2765 if (!LocalHeapSize16()) {
2766
2767 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2768 ERR("could not initialize local heap\n");
2769 goto done;
2770 }
2771 TRACE("local heap initialized\n");
2772 }
2773
2774 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2775 alloc_size = ROUND_TO_GROW(countA);
2776
2777 TRACE("Allocating 16-bit ANSI alias buffer\n");
2778 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2779 ERR("could not allocate new 16 bit buffer\n");
2780 goto done;
2781 }
2782
2783 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2784 ERR("could not lock new 16 bit buffer\n");
2785 LocalFree16(es->hloc16);
2786 es->hloc16 = 0;
2787 goto done;
2788 }
2789
2790 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2791 LocalUnlock16(es->hloc16);
2792 es->flags |= EF_APP_HAS_HANDLE;
2793
2794 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2795
2796 done:
2797 stack16->ds = oldDS;
2798 return es->hloc16;
2799 }
2800
2801
2802 /*********************************************************************
2803 *
2804 * EM_GETLINE
2805 *
2806 */
2807 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2808 {
2809 LPWSTR src;
2810 INT line_len, dst_len;
2811 INT i;
2812
2813 if (es->style & ES_MULTILINE) {
2814 if (line >= es->line_count)
2815 return 0;
2816 } else
2817 line = 0;
2818 i = EDIT_EM_LineIndex(es, line);
2819 src = es->text + i;
2820 line_len = EDIT_EM_LineLength(es, i);
2821 dst_len = *(WORD *)dst;
2822 if(unicode)
2823 {
2824 if(dst_len <= line_len)
2825 {
2826 memcpy(dst, src, dst_len * sizeof(WCHAR));
2827 return dst_len;
2828 }
2829 else /* Append 0 if enough space */
2830 {
2831 memcpy(dst, src, line_len * sizeof(WCHAR));
2832 dst[line_len] = 0;
2833 return line_len;
2834 }
2835 }
2836 else
2837 {
2838 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2839 if(!ret && line_len) /* Insufficient buffer size */
2840 return dst_len;
2841 if(ret < dst_len) /* Append 0 if enough space */
2842 ((LPSTR)dst)[ret] = 0;
2843 return ret;
2844 }
2845 }
2846
2847
2848 /*********************************************************************
2849 *
2850 * EM_GETSEL
2851 *
2852 */
2853 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2854 {
2855 UINT s = es->selection_start;
2856 UINT e = es->selection_end;
2857
2858 ORDER_UINT(s, e);
2859 if (start)
2860 *start = s;
2861 if (end)
2862 *end = e;
2863 return MAKELONG(s, e);
2864 }
2865
2866
2867 /*********************************************************************
2868 *
2869 * EM_GETTHUMB
2870 *
2871 * FIXME: is this right ? (or should it be only VSCROLL)
2872 * (and maybe only for edit controls that really have their
2873 * own scrollbars) (and maybe only for multiline controls ?)
2874 * All in all: very poorly documented
2875 *
2876 */
2877 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2878 {
2879 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2880 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2881 }
2882
2883
2884 /*********************************************************************
2885 *
2886 * EM_LINEFROMCHAR
2887 *
2888 */
2889 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2890 {
2891 INT line;
2892 LINEDEF *line_def;
2893
2894 if (!(es->style & ES_MULTILINE))
2895 return 0;
2896 if (index > (INT)get_text_length(es))
2897 return es->line_count - 1;
2898 if (index == -1)
2899 index = min(es->selection_start, es->selection_end);
2900
2901 line = 0;
2902 line_def = es->first_line_def;
2903 index -= line_def->length;
2904 while ((index >= 0) && line_def->next) {
2905 line++;
2906 line_def = line_def->next;
2907 index -= line_def->length;
2908 }
2909 return line;
2910 }
2911
2912
2913 /*********************************************************************
2914 *
2915 * EM_LINEINDEX
2916 *
2917 */
2918 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
2919 {
2920 INT line_index;
2921 const LINEDEF *line_def;
2922
2923 if (!(es->style & ES_MULTILINE))
2924 return 0;
2925 if (line >= es->line_count)
2926 return -1;
2927
2928 line_index = 0;
2929 line_def = es->first_line_def;
2930 if (line == -1) {
2931 INT index = es->selection_end - line_def->length;
2932 while ((index >= 0) && line_def->next) {
2933 line_index += line_def->length;
2934 line_def = line_def->next;
2935 index -= line_def->length;
2936 }
2937 } else {
2938 while (line > 0) {
2939 line_index += line_def->length;
2940 line_def = line_def->next;
2941 line--;
2942 }
2943 }
2944 return line_index;
2945 }
2946
2947
2948 /*********************************************************************
2949 *
2950 * EM_LINELENGTH
2951 *
2952 */
2953 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2954 {
2955 LINEDEF *line_def;
2956
2957 if (!(es->style & ES_MULTILINE))
2958 return get_text_length(es);
2959
2960 if (index == -1) {
2961 /* get the number of remaining non-selected chars of selected lines */
2962 INT32 l; /* line number */
2963 INT32 li; /* index of first char in line */
2964 INT32 count;
2965 l = EDIT_EM_LineFromChar(es, es->selection_start);
2966 /* # chars before start of selection area */
2967 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2968 l = EDIT_EM_LineFromChar(es, es->selection_end);
2969 /* # chars after end of selection */
2970 li = EDIT_EM_LineIndex(es, l);
2971 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2972 return count;
2973 }
2974 line_def = es->first_line_def;
2975 index -= line_def->length;
2976 while ((index >= 0) && line_def->next) {
2977 line_def = line_def->next;
2978 index -= line_def->length;
2979 }
2980 return line_def->net_length;
2981 }
2982
2983
2984 /*********************************************************************
2985 *
2986 * EM_LINESCROLL
2987 *
2988 * NOTE: dx is in average character widths, dy - in lines;
2989 *
2990 */
2991 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2992 {
2993 if (!(es->style & ES_MULTILINE))
2994 return FALSE;
2995
2996 dx *= es->char_width;
2997 return EDIT_EM_LineScroll_internal(es, dx, dy);
2998 }
2999
3000 /*********************************************************************
3001 *
3002 * EDIT_EM_LineScroll_internal
3003 *
3004 * Version of EDIT_EM_LineScroll for internal use.
3005 * It doesn't refuse if ES_MULTILINE is set and assumes that
3006 * dx is in pixels, dy - in lines.
3007 *
3008 */
3009 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
3010 {
3011 INT nyoff;
3012 INT x_offset_in_pixels;
3013 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3014 es->line_height;
3015
3016 if (es->style & ES_MULTILINE)
3017 {
3018 x_offset_in_pixels = es->x_offset;
3019 }
3020 else
3021 {
3022 dy = 0;
3023 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3024 }
3025
3026 if (-dx > x_offset_in_pixels)
3027 dx = -x_offset_in_pixels;
3028 if (dx > es->text_width - x_offset_in_pixels)
3029 dx = es->text_width - x_offset_in_pixels;
3030 nyoff = max(0, es->y_offset + dy);
3031 if (nyoff >= es->line_count - lines_per_page)
3032 nyoff = max(0, es->line_count - lines_per_page);
3033 dy = (es->y_offset - nyoff) * es->line_height;
3034 if (dx || dy) {
3035 RECT rc1;
3036 RECT rc;
3037
3038 es->y_offset = nyoff;
3039 if(es->style & ES_MULTILINE)
3040 es->x_offset += dx;
3041 else
3042 es->x_offset += dx / es->char_width;
3043
3044 GetClientRect(es->hwndSelf, &rc1);
3045 IntersectRect(&rc, &rc1, &es->format_rect);
3046 ScrollWindowEx(es->hwndSelf, -dx, dy,
3047 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3048 /* force scroll info update */
3049 EDIT_UpdateScrollInfo(es);
3050 }
3051 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3052 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3053 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3054 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3055 return TRUE;
3056 }
3057
3058
3059 /*********************************************************************
3060 *
3061 * EM_POSFROMCHAR
3062 *
3063 */
3064 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3065 {
3066 INT len = get_text_length(es);
3067 INT l;
3068 INT li;
3069 INT x;
3070 INT y = 0;
3071 INT w;
3072 INT lw = 0;
3073 INT ll = 0;
3074 HDC dc;
3075 HFONT old_font = 0;
3076 SIZE size;
3077 LINEDEF *line_def;
3078
3079 index = min(index, len);
3080 dc = GetDC(es->hwndSelf);
3081 if (es->font)
3082 old_font = SelectObject(dc, es->font);
3083 if (es->style & ES_MULTILINE) {
3084 l = EDIT_EM_LineFromChar(es, index);
3085 y = (l - es->y_offset) * es->line_height;
3086 li = EDIT_EM_LineIndex(es, l);
3087 if (after_wrap && (li == index) && l) {
3088 INT l2 = l - 1;
3089 line_def = es->first_line_def;
3090 while (l2) {
3091 line_def = line_def->next;
3092 l2--;
3093 }
3094 if (line_def->ending == END_WRAP) {
3095 l--;
3096 y -= es->line_height;
3097 li = EDIT_EM_LineIndex(es, l);
3098 }
3099 }
3100
3101 line_def = es->first_line_def;
3102 while (line_def->index != li)
3103 line_def = line_def->next;
3104
3105 ll = line_def->net_length;
3106 lw = line_def->width;
3107
3108 w = es->format_rect.right - es->format_rect.left;
3109 if (es->style & ES_RIGHT)
3110 {
3111 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3112 es->tabs_count, es->tabs)) - es->x_offset;
3113 x = w - x;
3114 }
3115 else if (es->style & ES_CENTER)
3116 {
3117 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3118 es->tabs_count, es->tabs)) - es->x_offset;
3119 x += (w - lw) / 2;
3120 }
3121 else /* ES_LEFT */
3122 {
3123 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3124 es->tabs_count, es->tabs)) - es->x_offset;
3125 }
3126 } else {
3127 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3128 if (index < es->x_offset) {
3129 GetTextExtentPoint32W(dc, text + index,
3130 es->x_offset - index, &size);
3131 x = -size.cx;
3132 } else {
3133 GetTextExtentPoint32W(dc, text + es->x_offset,
3134 index - es->x_offset, &size);
3135 x = size.cx;
3136
3137 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3138 {
3139 w = es->format_rect.right - es->format_rect.left;
3140 if (w > es->text_width)
3141 {
3142 if (es->style & ES_RIGHT)
3143 x += w - es->text_width;
3144 else if (es->style & ES_CENTER)
3145 x += (w - es->text_width) / 2;
3146 }
3147 }
3148 }
3149 y = 0;
3150 if (es->style & ES_PASSWORD)
3151 HeapFree(GetProcessHeap(), 0, text);
3152 }
3153 x += es->format_rect.left;
3154 y += es->format_rect.top;
3155 if (es->font)
3156 SelectObject(dc, old_font);
3157 ReleaseDC(es->hwndSelf, dc);
3158 return MAKELONG((INT16)x, (INT16)y);
3159 }
3160
3161
3162 /*********************************************************************
3163 *
3164 * EM_REPLACESEL
3165 *
3166 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3167 *
3168 */
3169 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3170 {
3171 UINT strl = strlenW(lpsz_replace);
3172 UINT tl = get_text_length(es);
3173 UINT utl;
3174 UINT s;
3175 UINT e;
3176 UINT i;
3177 UINT size;
3178 LPWSTR p;
3179 HRGN hrgn = 0;
3180 LPWSTR buf = NULL;
3181 UINT bufl = 0;
3182
3183 TRACE("%s, can_undo %d, send_update %d\n",
3184 debugstr_w(lpsz_replace), can_undo, send_update);
3185
3186 s = es->selection_start;
3187 e = es->selection_end;
3188
3189 if ((s == e) && !strl)
3190 return;
3191
3192 ORDER_UINT(s, e);
3193
3194 size = tl - (e - s) + strl;
3195 if (!size)
3196 es->text_width = 0;
3197
3198 /* Issue the EN_MAXTEXT notification and continue with replacing text
3199 * such that buffer limit is honored. */
3200 if ((honor_limit) && (size > es->buffer_limit)) {
3201 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3202 /* Buffer limit can be smaller than the actual length of text in combobox */
3203 if (es->buffer_limit < (tl - (e-s)))
3204 strl = 0;
3205 else
3206 strl = es->buffer_limit - (tl - (e-s));
3207 }
3208
3209 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3210 return;
3211
3212 if (e != s) {
3213 /* there is something to be deleted */
3214 TRACE("deleting stuff.\n");
3215 bufl = e - s;
3216 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3217 if (!buf) return;
3218 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3219 buf[bufl] = 0; /* ensure 0 termination */
3220 /* now delete */
3221 strcpyW(es->text + s, es->text + e);
3222 text_buffer_changed(es);
3223 }
3224 if (strl) {
3225 /* there is an insertion */
3226 tl = get_text_length(es);
3227 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));
3228 for (p = es->text + tl ; p >= es->text + s ; p--)
3229 p[strl] = p[0];
3230 for (i = 0 , p = es->text + s ; i < strl ; i++)
3231 p[i] = lpsz_replace[i];
3232 if(es->style & ES_UPPERCASE)
3233 CharUpperBuffW(p, strl);
3234 else if(es->style & ES_LOWERCASE)
3235 CharLowerBuffW(p, strl);
3236 text_buffer_changed(es);
3237 }
3238 if (es->style & ES_MULTILINE)
3239 {
3240 INT st = min(es->selection_start, es->selection_end);
3241 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3242
3243 hrgn = CreateRectRgn(0, 0, 0, 0);
3244 EDIT_BuildLineDefs_ML(es, st, st + strl,
3245 strl - abs(es->selection_end - es->selection_start), hrgn);
3246 /* if text is too long undo all changes */
3247 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3248 if (strl)
3249 strcpyW(es->text + e, es->text + e + strl);
3250 if (e != s)
3251 for (i = 0 , p = es->text ; i < e - s ; i++)
3252 p[i + s] = buf[i];
3253 text_buffer_changed(es);
3254 EDIT_BuildLineDefs_ML(es, s, e,
3255 abs(es->selection_end - es->selection_start) - strl, hrgn);
3256 strl = 0;
3257 e = s;
3258 hrgn = CreateRectRgn(0, 0, 0, 0);
3259 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3260 }
3261 }
3262 else {
3263 INT fw = es->format_rect.right - es->format_rect.left;
3264 EDIT_CalcLineWidth_SL(es);
3265 /* remove chars that don't fit */
3266 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3267 while ((es->text_width > fw) && s + strl >= s) {
3268 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3269 strl--;
3270 EDIT_CalcLineWidth_SL(es);
3271 }
3272 text_buffer_changed(es);
3273 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3274 }
3275 }
3276
3277 if (e != s) {
3278 if (can_undo) {
3279 utl = strlenW(es->undo_text);
3280 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3281 /* undo-buffer is extended to the right */
3282 EDIT_MakeUndoFit(es, utl + e - s);
3283 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3284 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3285 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3286 /* undo-buffer is extended to the left */
3287 EDIT_MakeUndoFit(es, utl + e - s);
3288 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3289 p[e - s] = p[0];
3290 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3291 p[i] = buf[i];
3292 es->undo_position = s;
3293 } else {
3294 /* new undo-buffer */
3295 EDIT_MakeUndoFit(es, e - s);
3296 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3297 es->undo_text[e - s] = 0; /* ensure 0 termination */
3298 es->undo_position = s;
3299 }
3300 /* any deletion makes the old insertion-undo invalid */
3301 es->undo_insert_count = 0;
3302 } else
3303 EDIT_EM_EmptyUndoBuffer(es);
3304 }
3305 if (strl) {
3306 if (can_undo) {
3307 if ((s == es->undo_position) ||
3308 ((es->undo_insert_count) &&
3309 (s == es->undo_position + es->undo_insert_count)))
3310 /*
3311 * insertion is new and at delete position or
3312 * an extension to either left or right
3313 */
3314 es->undo_insert_count += strl;
3315 else {
3316 /* new insertion undo */
3317 es->undo_position = s;
3318 es->undo_insert_count = strl;
3319 /* new insertion makes old delete-buffer invalid */
3320 *es->undo_text = '\0';
3321 }
3322 } else
3323 EDIT_EM_EmptyUndoBuffer(es);
3324 }
3325
3326 if (bufl)
3327 HeapFree(GetProcessHeap(), 0, buf);
3328
3329 s += strl;
3330
3331 /* If text has been deleted and we're right or center aligned then scroll rightward */
3332 if (es->style & (ES_RIGHT | ES_CENTER))
3333 {
3334 INT delta = strl - abs(es->selection_end - es->selection_start);
3335
3336 if (delta < 0 && es->x_offset)
3337 {
3338 if (abs(delta) > es->x_offset)
3339 es->x_offset = 0;
3340 else
3341 es->x_offset += delta;
3342 }
3343 }
3344
3345 EDIT_EM_SetSel(es, s, s, FALSE);
3346 es->flags |= EF_MODIFIED;
3347 if (send_update) es->flags |= EF_UPDATE;
3348 if (hrgn)
3349 {
3350 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3351 DeleteObject(hrgn);
3352 }
3353 else
3354 EDIT_UpdateText(es, NULL, TRUE);
3355
3356 EDIT_EM_ScrollCaret(es);
3357
3358 /* force scroll info update */
3359 EDIT_UpdateScrollInfo(es);
3360
3361
3362 if(send_update || (es->flags & EF_UPDATE))
3363 {
3364 es->flags &= ~EF_UPDATE;
3365 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3366 }
3367 }
3368
3369
3370 /*********************************************************************
3371 *
3372 * EM_SCROLL
3373 *
3374 */
3375 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3376 {
3377 INT dy;
3378
3379 if (!(es->style & ES_MULTILINE))
3380 return (LRESULT)FALSE;
3381
3382 dy = 0;
3383
3384 switch (action) {
3385 case SB_LINEUP:
3386 if (es->y_offset)
3387 dy = -1;
3388 break;
3389 case SB_LINEDOWN:
3390 if (es->y_offset < es->line_count - 1)
3391 dy = 1;
3392 break;
3393 case SB_PAGEUP:
3394 if (es->y_offset)
3395 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3396 break;
3397 case SB_PAGEDOWN:
3398 if (es->y_offset < es->line_count - 1)
3399 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3400 break;
3401 default:
3402 return (LRESULT)FALSE;
3403 }
3404 if (dy) {
3405 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3406 /* check if we are going to move too far */
3407 if(es->y_offset + dy > es->line_count - vlc)
3408 dy = es->line_count - vlc - es->y_offset;
3409
3410 /* Notification is done in EDIT_EM_LineScroll */
3411 if(dy)
3412 EDIT_EM_LineScroll(es, 0, dy);
3413 }
3414 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3415 }
3416
3417
3418 /*********************************************************************
3419 *
3420 * EM_SCROLLCARET
3421 *
3422 */
3423 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3424 {
3425 if (es->style & ES_MULTILINE) {
3426 INT l;
3427 INT li;
3428 INT vlc;
3429 INT ww;
3430 INT cw = es->char_width;
3431 INT x;
3432 INT dy = 0;
3433 INT dx = 0;
3434
3435 l = EDIT_EM_LineFromChar(es, es->selection_end);
3436 li = EDIT_EM_LineIndex(es, l);
3437 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3438 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3439 if (l >= es->y_offset + vlc)
3440 dy = l - vlc + 1 - es->y_offset;
3441 if (l < es->y_offset)
3442 dy = l - es->y_offset;
3443 ww = es->format_rect.right - es->format_rect.left;
3444 if (x < es->format_rect.left)
3445 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3446 if (x > es->format_rect.right)
3447 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3448 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3449 {
3450 /* check if we are going to move too far */
3451 if(es->x_offset + dx + ww > es->text_width)
3452 dx = es->text_width - ww - es->x_offset;
3453 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3454 EDIT_EM_LineScroll_internal(es, dx, dy);
3455 }
3456 } else {
3457 INT x;
3458 INT goal;
3459 INT format_width;
3460
3461 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3462 format_width = es->format_rect.right - es->format_rect.left;
3463 if (x < es->format_rect.left) {
3464 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3465 do {
3466 es->x_offset--;
3467 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3468 } while ((x < goal) && es->x_offset);
3469 /* FIXME: use ScrollWindow() somehow to improve performance */
3470 EDIT_UpdateText(es, NULL, TRUE);
3471 } else if (x > es->format_rect.right) {
3472 INT x_last;
3473 INT len = get_text_length(es);
3474 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3475 do {
3476 es->x_offset++;
3477 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3478 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3479 } while ((x > goal) && (x_last > es->format_rect.right));
3480 /* FIXME: use ScrollWindow() somehow to improve performance */
3481 EDIT_UpdateText(es, NULL, TRUE);
3482 }
3483 }
3484
3485 if(es->flags & EF_FOCUSED)
3486 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3487 }
3488
3489
3490 /*********************************************************************
3491 *
3492 * EM_SETHANDLE
3493 *
3494 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3495 *
3496 */
3497 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3498 {
3499 if (!(es->style & ES_MULTILINE))
3500 return;
3501
3502 if (!hloc) {
3503 WARN("called with NULL handle\n");
3504 return;
3505 }
3506
3507 EDIT_UnlockBuffer(es, TRUE);
3508
3509 if(es->hloc16)
3510 {
3511 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3512 HANDLE16 oldDS = stack16->ds;
3513
3514 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3515 LocalFree16(es->hloc16);
3516 stack16->ds = oldDS;
3517 es->hloc16 = 0;
3518 }
3519
3520 if(es->is_unicode)
3521 {
3522 if(es->hloc32A)
3523 {
3524 LocalFree(es->hloc32A);
3525 es->hloc32A = NULL;
3526 }
3527 es->hloc32W = hloc;
3528 }
3529 else
3530 {
3531 INT countW, countA;
3532 HLOCAL hloc32W_new;
3533 WCHAR *textW;
3534 CHAR *textA;
3535
3536 countA = LocalSize(hloc);
3537 textA = LocalLock(hloc);
3538 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3539 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3540 {
3541 ERR("Could not allocate new unicode buffer\n");
3542 return;
3543 }
3544 textW = LocalLock(hloc32W_new);
3545 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3546 LocalUnlock(hloc32W_new);
3547 LocalUnlock(hloc);
3548
3549 if(es->hloc32W)
3550 LocalFree(es->hloc32W);
3551
3552 es->hloc32W = hloc32W_new;
3553 es->hloc32A = hloc;
3554 }
3555
3556 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3557
3558 es->flags |= EF_APP_HAS_HANDLE;
3559 EDIT_LockBuffer(es);
3560
3561 es->x_offset = es->y_offset = 0;
3562 es->selection_start = es->selection_end = 0;
3563 EDIT_EM_EmptyUndoBuffer(es);
3564 es->flags &= ~EF_MODIFIED;
3565 es->flags &= ~EF_UPDATE;
3566 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3567 EDIT_UpdateText(es, NULL, TRUE);
3568 EDIT_EM_ScrollCaret(es);
3569 /* force scroll info update */
3570 EDIT_UpdateScrollInfo(es);
3571 }
3572
3573
3574 /*********************************************************************
3575 *
3576 * EM_SETHANDLE16
3577 *
3578 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3579 *
3580 */
3581 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3582 {
3583 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3584 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3585 HANDLE16 oldDS = stack16->ds;
3586 INT countW, countA;
3587 HLOCAL hloc32W_new;
3588 WCHAR *textW;
3589 CHAR *textA;
3590
3591 if (!(es->style & ES_MULTILINE))
3592 return;
3593
3594 if (!hloc) {
3595 WARN("called with NULL handle\n");
3596 return;
3597 }
3598
3599 EDIT_UnlockBuffer(es, TRUE);
3600
3601 if(es->hloc32A)
3602 {
3603 LocalFree(es->hloc32A);
3604 es->hloc32A = NULL;
3605 }
3606
3607 stack16->ds = hInstance;
3608 countA = LocalSize16(hloc);
3609 textA = MapSL(LocalLock16(hloc));
3610 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3611 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3612 {
3613 ERR("Could not allocate new unicode buffer\n");
3614 return;
3615 }
3616 textW = LocalLock(hloc32W_new);
3617 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3618 LocalUnlock(hloc32W_new);
3619 LocalUnlock16(hloc);
3620 stack16->ds = oldDS;
3621
3622 if(es->hloc32W)
3623 LocalFree(es->hloc32W);
3624
3625 es->hloc32W = hloc32W_new;
3626 es->hloc16 = hloc;
3627
3628 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3629
3630 es->flags |= EF_APP_HAS_HANDLE;
3631 EDIT_LockBuffer(es);
3632
3633 es->x_offset = es->y_offset = 0;
3634 es->selection_start = es->selection_end = 0;
3635 EDIT_EM_EmptyUndoBuffer(es);
3636 es->flags &= ~EF_MODIFIED;
3637 es->flags &= ~EF_UPDATE;
3638 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3639 EDIT_UpdateText(es, NULL, TRUE);
3640 EDIT_EM_ScrollCaret(es);
3641 /* force scroll info update */
3642 EDIT_UpdateScrollInfo(es);
3643 }
3644
3645
3646 /*********************************************************************
3647 *
3648 * EM_SETLIMITTEXT
3649 *
3650 * NOTE: this version currently implements WinNT limits
3651 *
3652 */
3653 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
3654 {
3655 if (!limit) limit = ~0u;
3656 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
3657 es->buffer_limit = limit;
3658 }
3659
3660
3661 /*********************************************************************
3662 *
3663 * EM_SETMARGINS
3664 *
3665 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3666 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3667 * margin according to the textmetrics of the current font.
3668 *
3669 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3670 * of the char's width as the margin, but this is not how Windows handles this.
3671 * For all other fonts Windows sets the margins to zero.
3672 *
3673 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3674 * edit control is equal to or larger than a certain size.
3675 * Interestingly if one subtracts both the left and right margins from
3676 * this size one always seems to get an even number. The extents of
3677 * the (four character) string "'**'" match this quite closely, so
3678 * we'll use this until we come up with a better idea.
3679 */
3680 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3681 {
3682 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3683 SIZE sz;
3684
3685 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3686 return sz.cx + left + right;
3687 }
3688
3689 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3690 WORD left, WORD right, BOOL repaint)
3691 {
3692 TEXTMETRICW tm;
3693 INT default_left_margin = 0; /* in pixels */
3694 INT default_right_margin = 0; /* in pixels */
3695
3696 /* Set the default margins depending on the font */
3697 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3698 HDC dc = GetDC(es->hwndSelf);
3699 HFONT old_font = SelectObject(dc, es->font);
3700 GetTextMetricsW(dc, &tm);
3701 /* The default margins are only non zero for TrueType or Vector fonts */
3702 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3703 int min_size;
3704 RECT rc;
3705 /* This must be calculated more exactly! But how? */
3706 default_left_margin = tm.tmAveCharWidth / 2;
3707 default_right_margin = tm.tmAveCharWidth / 2;
3708 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3709 GetClientRect(es->hwndSelf, &rc);
3710 if(rc.right - rc.left < min_size) {
3711 default_left_margin = es->left_margin;
3712 default_right_margin = es->right_margin;
3713 }
3714 }
3715 SelectObject(dc, old_font);
3716 ReleaseDC(es->hwndSelf, dc);
3717 }
3718
3719 if (action & EC_LEFTMARGIN) {
3720 es->format_rect.left -= es->left_margin;
3721 if (left != EC_USEFONTINFO)
3722 es->left_margin = left;
3723 else
3724 es->left_margin = default_left_margin;
3725 es->format_rect.left += es->left_margin;
3726 }
3727
3728 if (action & EC_RIGHTMARGIN) {
3729 es->format_rect.right += es->right_margin;
3730 if (right != EC_USEFONTINFO)
3731 es->right_margin = right;
3732 else
3733 es->right_margin = default_right_margin;
3734 es->format_rect.right -= es->right_margin;
3735 }
3736
3737 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3738 EDIT_AdjustFormatRect(es);
3739 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3740 }
3741
3742 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3743 }
3744
3745
3746 /*********************************************************************
3747 *
3748 * EM_SETPASSWORDCHAR
3749 *
3750 */
3751 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3752 {
3753 LONG style;
3754
3755 if (es->style & ES_MULTILINE)
3756 return;
3757
3758 if (es->password_char == c)
3759 return;
3760
3761 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3762 es->password_char = c;
3763 if (c) {
3764 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3765 es->style |= ES_PASSWORD;
3766 } else {
3767 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3768 es->style &= ~ES_PASSWORD;
3769 }
3770 EDIT_UpdateText(es, NULL, TRUE);
3771 }
3772
3773
3774 /*********************************************************************
3775 *
3776 * EDIT_EM_SetSel
3777 *
3778 * note: unlike the specs say: the order of start and end
3779 * _is_ preserved in Windows. (i.e. start can be > end)
3780 * In other words: this handler is OK
3781 *
3782 */
3783 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3784 {
3785 UINT old_start = es->selection_start;
3786 UINT old_end = es->selection_end;
3787 UINT len = get_text_length(es);
3788
3789 if (start == (UINT)-1) {
3790 start = es->selection_end;
3791 end = es->selection_end;
3792 } else {
3793 start = min(start, len);
3794 end = min(end, len);
3795 }
3796 es->selection_start = start;
3797 es->selection_end = end;
3798 if (after_wrap)
3799 es->flags |= EF_AFTER_WRAP;
3800 else
3801 es->flags &= ~EF_AFTER_WRAP;
3802 /* Compute the necessary invalidation region. */
3803 /* Note that we don't need to invalidate regions which have
3804 * "never" been selected, or those which are "still" selected.
3805 * In fact, every time we hit a selection boundary, we can
3806 * *toggle* whether we need to invalidate. Thus we can optimize by
3807 * *sorting* the interval endpoints. Let's assume that we sort them
3808 * in this order:
3809 * start <= end <= old_start <= old_end
3810 * Knuth 5.3.1 (p 183) asssures us that this can be done optimally
3811 * in 5 comparisons; ie it's impossible to do better than the
3812 * following: */
3813 ORDER_UINT(end, old_end);
3814 ORDER_UINT(start, old_start);
3815 ORDER_UINT(old_start, old_end);
3816 ORDER_UINT(start, end);
3817 /* Note that at this point 'end' and 'old_start' are not in order, but
3818 * start is definitely the min. and old_end is definitely the max. */
3819 if (end != old_start)
3820 {
3821 /*
3822 * One can also do
3823 * ORDER_UINT32(end, old_start);
3824 * EDIT_InvalidateText(es, start, end);
3825 * EDIT_InvalidateText(es, old_start, old_end);
3826 * in place of the following if statement.
3827 * (That would complete the optimal five-comparison four-element sort.)
3828 */
3829 if (old_start > end )
3830 {
3831 EDIT_InvalidateText(es, start, end);
3832 EDIT_InvalidateText(es, old_start, old_end);
3833 }
3834 else
3835 {
3836 EDIT_InvalidateText(es, start, old_start);
3837 EDIT_InvalidateText(es, end, old_end);
3838 }
3839 }
3840 else EDIT_InvalidateText(es, start, old_end);
3841 }
3842
3843
3844 /*********************************************************************
3845 *
3846 * EM_SETTABSTOPS
3847 *
3848 */
3849 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3850 {
3851 if (!(es->style & ES_MULTILINE))
3852 return FALSE;
3853 HeapFree(GetProcessHeap(), 0, es->tabs);
3854 es->tabs_count = count;
3855 if (!count)
3856 es->tabs = NULL;
3857 else {
3858 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3859 memcpy(es->tabs, tabs, count * sizeof(INT));
3860 }
3861 return TRUE;
3862 }
3863
3864
3865 /*********************************************************************
3866 *
3867 * EM_SETTABSTOPS16
3868 *
3869 */
3870 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs)
3871 {
3872 if (!(es->style & ES_MULTILINE))
3873 return FALSE;
3874 HeapFree(GetProcessHeap(), 0, es->tabs);
3875 es->tabs_count = count;
3876 if (!count)
3877 es->tabs = NULL;
3878 else {
3879 INT i;
3880 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3881 for (i = 0 ; i < count ; i++)
3882 es->tabs[i] = *tabs++;
3883 }
3884 return TRUE;
3885 }
3886
3887
3888 /*********************************************************************
3889 *
3890 * EM_SETWORDBREAKPROC
3891 *
3892 */
3893 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3894 {
3895 if (es->word_break_proc == wbp)
3896 return;
3897
3898 es->word_break_proc = wbp;
3899 es->word_break_proc16 = NULL;
3900
3901 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3902 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3903 EDIT_UpdateText(es, NULL, TRUE);
3904 }
3905 }
3906
3907
3908 /*********************************************************************
3909 *
3910 * EM_SETWORDBREAKPROC16
3911 *
3912 */
3913 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3914 {
3915 if (es->word_break_proc16 == wbp)
3916 return;
3917
3918 es->word_break_proc = NULL;
3919 es->word_break_proc16 = wbp;
3920 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3921 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3922 EDIT_UpdateText(es, NULL, TRUE);
3923 }
3924 }
3925
3926
3927 /*********************************************************************
3928 *
3929 * EM_UNDO / WM_UNDO
3930 *
3931 */
3932 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3933 {
3934 INT ulength;
3935 LPWSTR utext;
3936
3937 /* As per MSDN spec, for a single-line edit control,
3938 the return value is always TRUE */
3939 if( es->style & ES_READONLY )
3940 return !(es->style & ES_MULTILINE);
3941
3942 ulength = strlenW(es->undo_text);
3943
3944 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3945
3946 strcpyW(utext, es->undo_text);
3947
3948 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3949 es->undo_insert_count, debugstr_w(utext));
3950
3951 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3952 EDIT_EM_EmptyUndoBuffer(es);
3953 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3954 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3955 /* send the notification after the selection start and end are set */
3956 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3957 EDIT_EM_ScrollCaret(es);
3958 HeapFree(GetProcessHeap(), 0, utext);
3959
3960 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3961 es->undo_insert_count, debugstr_w(es->undo_text));
3962 return TRUE;
3963 }
3964
3965
3966 /* Helper function for WM_CHAR
3967 *
3968 * According to an MSDN blog article titled "Just because you're a control
3969 * doesn't mean that you're necessarily inside a dialog box," multiline edit
3970 * controls without ES_WANTRETURN would attempt to detect whether it is inside
3971 * a dialog box or not.
3972 */
3973 static BOOL EDIT_IsInsideDialog(EDITSTATE *es)
3974 {
3975 WND *pParent;
3976 BOOL r = FALSE;
3977
3978 if (es->hwndParent)
3979 {
3980 pParent = WIN_GetPtr(es->hwndParent);
3981 if (pParent && pParent != WND_OTHER_PROCESS && pParent != WND_DESKTOP)
3982 {
3983 if (pParent->flags & WIN_ISDIALOG)
3984 r = TRUE;
3985 WIN_ReleasePtr(pParent);
3986 }
3987 }
3988 return r;
3989 }
3990
3991
3992 /*********************************************************************
3993 *
3994 * WM_CHAR
3995 *
3996 */
3997 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3998 {
3999 BOOL control;
4000
4001 control = GetKeyState(VK_CONTROL) & 0x8000;
4002
4003 switch (c) {
4004 case '\r':
4005 /* If it's not a multiline edit box, it would be ignored below.
4006 * For multiline edit without ES_WANTRETURN, we have to make a
4007 * special case.
4008 */
4009 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
4010 if (EDIT_IsInsideDialog(es))
4011 break;
4012 case '\n':
4013 if (es->style & ES_MULTILINE) {
4014 if (es->style & ES_READONLY) {
4015 EDIT_MoveHome(es, FALSE, FALSE);
4016 EDIT_MoveDown_ML(es, FALSE);
4017 } else {
4018 static const WCHAR cr_lfW[] = {'\r','\n',0};
4019 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
4020 }
4021 }
4022 break;
4023 case '\t':
4024 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
4025 {
4026 static const WCHAR tabW[] = {'\t',0};
4027 if (EDIT_IsInsideDialog(es))
4028 break;
4029 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
4030 }
4031 break;
4032 case VK_BACK:
4033 if (!(es->style & ES_READONLY) && !control) {
4034 if (es->selection_start != es->selection_end)
4035 EDIT_WM_Clear(es);
4036 else {
4037 /* delete character left of caret */
4038 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4039 EDIT_MoveBackward(es, TRUE);
4040 EDIT_WM_Clear(es);
4041 }
4042 }
4043 break;
4044 case 0x03: /* ^C */
4045 if (!(es->style & ES_PASSWORD))
4046 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4047 break;
4048 case 0x16: /* ^V */
4049 if (!(es->style & ES_READONLY))
4050 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4051 break;
4052 case 0x18: /* ^X */
4053 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
4054 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4055 break;
4056 case 0x1A: /* ^Z */
4057 if (!(es->style & ES_READONLY))
4058 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4059 break;
4060
4061 default:
4062 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4063 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4064 break;
4065
4066 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4067 WCHAR str[2];
4068 str[0] = c;
4069 str[1] = '\0';
4070 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4071 }
4072 break;
4073 }
4074 return 1;
4075 }
4076
4077
4078 /*********************************************************************
4079 *
4080 * WM_COMMAND
4081 *
4082 */
4083 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4084 {
4085 if (code || control)
4086 return;
4087
4088 switch (id) {
4089 case EM_UNDO:
4090 EDIT_EM_Undo(es);
4091 break;
4092 case WM_CUT:
4093 EDIT_WM_Cut(es);
4094 break;
4095 case WM_COPY:
4096 EDIT_WM_Copy(es);
4097 break;
4098 case WM_PASTE:
4099 EDIT_WM_Paste(es);
4100 break;
4101 case WM_CLEAR:
4102 EDIT_WM_Clear(es);
4103 break;
4104 case EM_SETSEL:
4105 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4106 EDIT_EM_ScrollCaret(es);
4107 break;
4108 default:
4109 ERR("unknown menu item, please report\n");
4110 break;
4111 }
4112 }
4113
4114
4115 /*********************************************************************
4116 *
4117 * WM_CONTEXTMENU
4118 *
4119 * Note: the resource files resource/sysres_??.rc cannot define a
4120 * single popup menu. Hence we use a (dummy) menubar
4121 * containing the single popup menu as its first item.
4122 *
4123 * FIXME: the message identifiers have been chosen arbitrarily,
4124 * hence we use MF_BYPOSITION.
4125 * We might as well use the "real" values (anybody knows ?)
4126 * The menu definition is in resources/sysres_??.rc.
4127 * Once these are OK, we better use MF_BYCOMMAND here
4128 * (as we do in EDIT_WM_Command()).
4129 *
4130 */
4131 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4132 {
4133 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4134 HMENU popup = GetSubMenu(menu, 0);
4135 UINT start = es->selection_start;
4136 UINT end = es->selection_end;
4137
4138 ORDER_UINT(start, end);
4139
4140 /* undo */
4141 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4142 /* cut */
4143 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4144 /* copy */
4145 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4146 /* paste */
4147 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4148 /* delete */
4149 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4150 /* select all */
4151 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
4152
4153 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
4154 {
4155 RECT rc;
4156 /* Windows places the menu at the edit's center in this case */
4157 GetClientRect(es->hwndSelf, &rc);
4158 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
4159 x = rc.left + (rc.right - rc.left) / 2;
4160 y = rc.top + (rc.bottom - rc.top) / 2;
4161 }
4162
4163 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4164 DestroyMenu(menu);
4165 }
4166
4167
4168 /*********************************************************************
4169 *
4170 * WM_COPY
4171 *
4172 */
4173 static void EDIT_WM_Copy(EDITSTATE *es)
4174 {
4175 INT s = min(es->selection_start, es->selection_end);
4176 INT e = max(es->selection_start, es->selection_end);
4177 HGLOBAL hdst;
4178 LPWSTR dst;
4179 DWORD len;
4180
4181 if (e == s) return;
4182
4183 len = e - s;
4184 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4185 dst = GlobalLock(hdst);
4186 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4187 dst[len] = 0; /* ensure 0 termination */
4188 TRACE("%s\n", debugstr_w(dst));
4189 GlobalUnlock(hdst);
4190 OpenClipboard(es->hwndSelf);
4191 EmptyClipboard();
4192 SetClipboardData(CF_UNICODETEXT, hdst);
4193 CloseClipboard();
4194 }
4195
4196
4197 /*********************************************************************
4198 *
4199 * WM_CREATE
4200 *
4201 */
4202 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4203 {
4204 RECT clientRect;
4205
4206 TRACE("%s\n", debugstr_w(name));
4207 /*
4208 * To initialize some final structure members, we call some helper
4209 * functions. However, since the EDITSTATE is not consistent (i.e.
4210 * not fully initialized), we should be very careful which
4211 * functions can be called, and in what order.
4212 */
4213 EDIT_WM_SetFont(es, 0, FALSE);
4214 EDIT_EM_EmptyUndoBuffer(es);
4215
4216 /* We need to calculate the format rect
4217 (applications may send EM_SETMARGINS before the control gets visible) */
4218 GetClientRect(es->hwndSelf, &clientRect);
4219 EDIT_SetRectNP(es, &clientRect);
4220
4221 if (name && *name) {
4222 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4223 /* if we insert text to the editline, the text scrolls out
4224 * of the window, as the caret is placed after the insert
4225 * pos normally; thus we reset es->selection... to 0 and
4226 * update caret
4227 */
4228 es->selection_start = es->selection_end = 0;
4229 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4230 * Messages are only to be sent when the USER does something to
4231 * change the contents. So I am removing this EN_CHANGE
4232 *
4233 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4234 */
4235 EDIT_EM_ScrollCaret(es);
4236 }
4237 /* force scroll info update */
4238 EDIT_UpdateScrollInfo(es);
4239 /* The rule seems to return 1 here for success */
4240 /* Power Builder masked edit controls will crash */
4241 /* if not. */
4242 /* FIXME: is that in all cases so ? */
4243 return 1;
4244 }
4245
4246
4247 /*********************************************************************
4248 *
4249 * WM_DESTROY
4250 *
4251 */
4252 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4253 {
4254 LINEDEF *pc, *pp;
4255
4256 if (es->hloc32W) {
4257 while (LocalUnlock(es->hloc32W)) ;
4258 LocalFree(es->hloc32W);
4259 }
4260 if (es->hloc32A) {
4261 while (LocalUnlock(es->hloc32A)) ;
4262 LocalFree(es->hloc32A);
4263 }
4264 if (es->hloc16) {
4265 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
4266 HANDLE16 oldDS = stack16->ds;
4267
4268 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4269 while (LocalUnlock16(es->hloc16)) ;
4270 LocalFree16(es->hloc16);
4271 stack16->ds = oldDS;
4272 }
4273
4274 pc = es->first_line_def;
4275 while (pc)
4276 {
4277 pp = pc->next;
4278 HeapFree(GetProcessHeap(), 0, pc);
4279 pc = pp;
4280 }
4281
4282 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4283 HeapFree(GetProcessHeap(), 0, es);
4284
4285 return 0;
4286 }
4287
4288
4289 /*********************************************************************
4290 *
4291 * WM_GETTEXT
4292 *
4293 */
4294 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4295 {
4296 if(!count) return 0;
4297
4298 if(unicode)
4299 {
4300 lstrcpynW(dst, es->text, count);
4301 return strlenW(dst);
4302 }
4303 else
4304 {
4305 LPSTR textA = (LPSTR)dst;
4306 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4307 textA[count - 1] = 0; /* ensure 0 termination */
4308 return strlen(textA);
4309 }
4310 }
4311
4312 /*********************************************************************
4313 *
4314 * WM_HSCROLL
4315 *
4316 */
4317 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4318 {
4319 INT dx;
4320 INT fw;
4321
4322 if (!(es->style & ES_MULTILINE))
4323 return 0;
4324
4325 if (!(es->style & ES_AUTOHSCROLL))
4326 return 0;
4327
4328 dx = 0;
4329 fw = es->format_rect.right - es->format_rect.left;
4330 switch (action) {
4331 case SB_LINELEFT:
4332 TRACE("SB_LINELEFT\n");
4333 if (es->x_offset)
4334 dx = -es->char_width;
4335 break;
4336 case SB_LINERIGHT:
4337 TRACE("SB_LINERIGHT\n");
4338 if (es->x_offset < es->text_width)
4339 dx = es->char_width;
4340 break;
4341 case SB_PAGELEFT:
4342 TRACE("SB_PAGELEFT\n");
4343 if (es->x_offset)
4344 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4345 break;
4346 case SB_PAGERIGHT:
4347 TRACE("SB_PAGERIGHT\n");
4348 if (es->x_offset < es->text_width)
4349 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4350 break;
4351 case SB_LEFT:
4352 TRACE("SB_LEFT\n");
4353 if (es->x_offset)
4354 dx = -es->x_offset;
4355 break;
4356 case SB_RIGHT:
4357 TRACE("SB_RIGHT\n");
4358 if (es->x_offset < es->text_width)
4359 dx = es->text_width - es->x_offset;
4360 break;
4361 case SB_THUMBTRACK:
4362 TRACE("SB_THUMBTRACK %d\n", pos);
4363 es->flags |= EF_HSCROLL_TRACK;
4364 if(es->style & WS_HSCROLL)
4365 dx = pos - es->x_offset;
4366 else
4367 {
4368 INT fw, new_x;
4369 /* Sanity check */
4370 if(pos < 0 || pos > 100) return 0;
4371 /* Assume default scroll range 0-100 */
4372 fw = es->format_rect.right - es->format_rect.left;
4373 new_x = pos * (es->text_width - fw) / 100;
4374 dx = es->text_width ? (new_x - es->x_offset) : 0;
4375 }
4376 break;
4377 case SB_THUMBPOSITION:
4378 TRACE("SB_THUMBPOSITION %d\n", pos);
4379 es->flags &= ~EF_HSCROLL_TRACK;
4380 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4381 dx = pos - es->x_offset;
4382 else
4383 {
4384 INT fw, new_x;
4385 /* Sanity check */
4386 if(pos < 0 || pos > 100) return 0;
4387 /* Assume default scroll range 0-100 */
4388 fw = es->format_rect.right - es->format_rect.left;
4389 new_x = pos * (es->text_width - fw) / 100;
4390 dx = es->text_width ? (new_x - es->x_offset) : 0;
4391 }
4392 if (!dx) {
4393 /* force scroll info update */
4394 EDIT_UpdateScrollInfo(es);
4395 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4396 }
4397 break;
4398 case SB_ENDSCROLL:
4399 TRACE("SB_ENDSCROLL\n");
4400 break;
4401 /*
4402 * FIXME : the next two are undocumented !
4403 * Are we doing the right thing ?
4404 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4405 * although it's also a regular control message.
4406 */
4407 case EM_GETTHUMB: /* this one is used by NT notepad */
4408 case EM_GETTHUMB16:
4409 {
4410 LRESULT ret;
4411 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4412 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4413 else
4414 {
4415 /* Assume default scroll range 0-100 */
4416 INT fw = es->format_rect.right - es->format_rect.left;
4417 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4418 }
4419 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4420 return ret;
4421 }
4422 case EM_LINESCROLL16:
4423 TRACE("EM_LINESCROLL16\n");
4424 dx = pos;
4425 break;
4426
4427 default:
4428 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4429 action, action);
4430 return 0;
4431 }
4432 if (dx)
4433 {
4434 INT fw = es->format_rect.right - es->format_rect.left;
4435 /* check if we are going to move too far */
4436 if(es->x_offset + dx + fw > es->text_width)
4437 dx = es->text_width - fw - es->x_offset;
4438 if(dx)
4439 EDIT_EM_LineScroll_internal(es, dx, 0);
4440 }
4441 return 0;
4442 }
4443
4444
4445 /*********************************************************************
4446 *
4447 * EDIT_CheckCombo
4448 *
4449 */
4450 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4451 {
4452 HWND hLBox = es->hwndListBox;
4453 HWND hCombo;
4454 BOOL bDropped;
4455 int nEUI;
4456
4457 if (!hLBox)
4458 return FALSE;
4459
4460 hCombo = GetParent(es->hwndSelf);
4461 bDropped = TRUE;
4462 nEUI = 0;
4463
4464 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4465
4466 if (key == VK_UP || key == VK_DOWN)
4467 {
4468 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4469 nEUI = 1;
4470
4471 if (msg == WM_KEYDOWN || nEUI)
4472 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4473 }
4474
4475 switch (msg)
4476 {
4477 case WM_KEYDOWN:
4478 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4479 {
4480 /* make sure ComboLBox pops up */
4481 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4482 key = VK_F4;
4483 nEUI = 2;
4484 }
4485
4486 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4487 break;
4488
4489 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4490 if (nEUI)
4491 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4492 else
4493 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4494 break;
4495 }
4496
4497 if(nEUI == 2)
4498 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4499
4500 return TRUE;
4501 }
4502
4503
4504 /*********************************************************************
4505 *
4506 * WM_KEYDOWN
4507 *
4508 * Handling of special keys that don't produce a WM_CHAR
4509 * (i.e. non-printable keys) & Backspace & Delete
4510 *
4511 */
4512 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4513 {
4514 BOOL shift;
4515 BOOL control;
4516
4517 if (GetKeyState(VK_MENU) & 0x8000)
4518 return 0;
4519
4520 shift = GetKeyState(VK_SHIFT) & 0x8000;
4521 control = GetKeyState(VK_CONTROL) & 0x8000;
4522
4523 switch (key) {
4524 case VK_F4:
4525 case VK_UP:
4526 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4527 break;
4528
4529 /* fall through */
4530 case VK_LEFT:
4531 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4532 EDIT_MoveUp_ML(es, shift);
4533 else
4534 if (control)
4535 EDIT_MoveWordBackward(es, shift);
4536 else
4537 EDIT_MoveBackward(es, shift);
4538 break;
4539 case VK_DOWN:
4540 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4541 break;
4542 /* fall through */
4543 case VK_RIGHT:
4544 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4545 EDIT_MoveDown_ML(es, shift);
4546 else if (control)
4547 EDIT_MoveWordForward(es, shift);
4548 else
4549 EDIT_MoveForward(es, shift);
4550 break;
4551 case VK_HOME:
4552 EDIT_MoveHome(es, shift, control);
4553 break;
4554 case VK_END:
4555 EDIT_MoveEnd(es, shift, control);
4556 break;
4557 case VK_PRIOR:
4558 if (es->style & ES_MULTILINE)
4559 EDIT_MovePageUp_ML(es, shift);
4560 else
4561 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4562 break;
4563 case VK_NEXT:
4564 if (es->style & ES_MULTILINE)
4565 EDIT_MovePageDown_ML(es, shift);
4566 else
4567 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4568 break;
4569 case VK_DELETE:
4570 if (!(es->style & ES_READONLY) && !(shift && control)) {
4571 if (es->selection_start != es->selection_end) {
4572 if (shift)
4573 EDIT_WM_Cut(es);
4574 else
4575 EDIT_WM_Clear(es);
4576 } else {
4577 if (shift) {
4578 /* delete character left of caret */
4579 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4580 EDIT_MoveBackward(es, TRUE);
4581 EDIT_WM_Clear(es);
4582 } else if (control) {
4583 /* delete to end of line */
4584 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4585 EDIT_MoveEnd(es, TRUE, FALSE);
4586 EDIT_WM_Clear(es);
4587 } else {
4588 /* delete character right of caret */
4589 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4590 EDIT_MoveForward(es, TRUE);
4591 EDIT_WM_Clear(es);
4592 }
4593 }
4594 }
4595 break;
4596 case VK_INSERT:
4597 if (shift) {
4598 if (!(es->style & ES_READONLY))
4599 EDIT_WM_Paste(es);
4600 } else if (control)
4601 EDIT_WM_Copy(es);
4602 break;
4603 case VK_RETURN:
4604 /* If the edit doesn't want the return send a message to the default object */
4605 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
4606 {
4607 HWND hwndParent = GetParent(es->hwndSelf);
4608 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4609 if (HIWORD(dw) == DC_HASDEFID)
4610 {
4611 SendMessageW( hwndParent, WM_COMMAND,
4612 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4613 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4614 }
4615 else
4616 SendMessageW( hwndParent, WM_COMMAND, IDOK, (LPARAM)GetDlgItem( hwndParent, IDOK ) );
4617 }
4618 break;
4619 case VK_ESCAPE:
4620 if (!(es->style & ES_MULTILINE))
4621 SendMessageW(GetParent(es->hwndSelf), WM_COMMAND, IDCANCEL, (LPARAM)GetDlgItem( GetParent(es->hwndSelf), IDCANCEL ) );
4622 break;
4623 case VK_TAB:
4624 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
4625 break;
4626 }
4627 return 0;
4628 }
4629
4630
4631 /*********************************************************************
4632 *
4633 * WM_KILLFOCUS
4634 *
4635 */
4636 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4637 {
4638 es->flags &= ~EF_FOCUSED;
4639 DestroyCaret();
4640 if(!(es->style & ES_NOHIDESEL))
4641 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4642 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4643 return 0;
4644 }
4645
4646
4647 /*********************************************************************
4648 *
4649 * WM_LBUTTONDBLCLK
4650 *
4651 * The caret position has been set on the WM_LBUTTONDOWN message
4652 *
4653 */
4654 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4655 {
4656 INT s;
4657 INT e = es->selection_end;
4658 INT l;
4659 INT li;
4660 INT ll;
4661
4662 es->bCaptureState = TRUE;
4663 SetCapture(es->hwndSelf);
4664
4665 l = EDIT_EM_LineFromChar(es, e);
4666 li = EDIT_EM_LineIndex(es, l);
4667 ll = EDIT_EM_LineLength(es, e);
4668 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4669 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4670 EDIT_EM_SetSel(es, s, e, FALSE);
4671 EDIT_EM_ScrollCaret(es);
4672 es->region_posx = es->region_posy = 0;
4673 SetTimer(es->hwndSelf, 0, 100, NULL);
4674 return 0;
4675 }
4676
4677
4678 /*********************************************************************
4679 *
4680 * WM_LBUTTONDOWN
4681 *
4682 */
4683 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4684 {
4685 INT e;
4686 BOOL after_wrap;
4687
4688 es->bCaptureState = TRUE;
4689 SetCapture(es->hwndSelf);
4690 EDIT_ConfinePoint(es, &x, &y);
4691 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4692 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4693 EDIT_EM_ScrollCaret(es);
4694 es->region_posx = es->region_posy = 0;
4695 SetTimer(es->hwndSelf, 0, 100, NULL);
4696
4697 if (!(es->flags & EF_FOCUSED))
4698 SetFocus(es->hwndSelf);
4699
4700 return 0;
4701 }
4702
4703
4704 /*********************************************************************
4705 *
4706 * WM_LBUTTONUP
4707 *
4708 */
4709 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4710 {
4711 if (es->bCaptureState) {
4712 KillTimer(es->hwndSelf, 0);
4713 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4714 }
4715 es->bCaptureState = FALSE;
4716 return 0;
4717 }
4718
4719
4720 /*********************************************************************
4721 *
4722 * WM_MBUTTONDOWN
4723 *
4724 */
4725 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4726 {
4727 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4728 return 0;
4729 }
4730
4731
4732 /*********************************************************************
4733 *
4734 * WM_MOUSEMOVE
4735 *
4736 */
4737 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4738 {
4739 INT e;
4740 BOOL after_wrap;
4741 INT prex, prey;
4742
4743 /* If the mouse has been captured by process other than the edit control itself,
4744 * the windows edit controls will not select the strings with mouse move.
4745 */
4746 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4747 return 0;
4748
4749 /*
4750 * FIXME: gotta do some scrolling if outside client
4751 * area. Maybe reset the timer ?
4752 */
4753 prex = x; prey = y;
4754 EDIT_ConfinePoint(es, &x, &y);
4755 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4756 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4757 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4758 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4759 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4760 return 0;
4761 }
4762
4763
4764 /*********************************************************************
4765 *
4766 * WM_NCCREATE
4767 *
4768 * See also EDIT_WM_StyleChanged
4769 */
4770 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4771 {
4772 EDITSTATE *es;
4773 UINT alloc_size;
4774
4775 TRACE("Creating %s edit control, style = %08x\n",
4776 unicode ? "Unicode" : "ANSI", lpcs->style);
4777
4778 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4779 return FALSE;
4780 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4781
4782 /*
4783 * Note: since the EDITSTATE has not been fully initialized yet,
4784 * we can't use any API calls that may send
4785 * WM_XXX messages before WM_NCCREATE is completed.
4786 */
4787
4788 es->is_unicode = unicode;
4789 es->style = lpcs->style;
4790
4791 es->bEnableState = !(es->style & WS_DISABLED);
4792
4793 es->hwndSelf = hwnd;
4794 /* Save parent, which will be notified by EN_* messages */
4795 es->hwndParent = lpcs->hwndParent;
4796
4797 if (es->style & ES_COMBO)
4798 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4799
4800 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4801 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4802
4803 /* Number overrides lowercase overrides uppercase (at least it
4804 * does in Win95). However I'll bet that ES_NUMBER would be
4805 * invalid under Win 3.1.
4806 */
4807 if (es->style & ES_NUMBER) {
4808 ; /* do not override the ES_NUMBER */
4809 } else if (es->style & ES_LOWERCASE) {
4810 es->style &= ~ES_UPPERCASE;
4811 }
4812 if (es->style & ES_MULTILINE) {
4813 es->buffer_limit = BUFLIMIT_INITIAL;
4814 if (es->style & WS_VSCROLL)
4815 es->style |= ES_AUTOVSCROLL;
4816 if (es->style & WS_HSCROLL)
4817 es->style |= ES_AUTOHSCROLL;
4818 es->style &= ~ES_PASSWORD;
4819 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4820 /* Confirmed - RIGHT overrides CENTER */
4821 if (es->style & ES_RIGHT)
4822 es->style &= ~ES_CENTER;
4823 es->style &= ~WS_HSCROLL;
4824 es->style &= ~ES_AUTOHSCROLL;
4825 }
4826 } else {
4827 es->buffer_limit = BUFLIMIT_INITIAL;
4828 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4829 es->style &= ~ES_CENTER;
4830 es->style &= ~WS_HSCROLL;
4831 es->style &= ~WS_VSCROLL;
4832 if (es->style & ES_PASSWORD)
4833 es->password_char = '*';
4834 }
4835
4836 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4837 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4838 return FALSE;
4839 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4840
4841 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4842 return FALSE;
4843 es->undo_buffer_size = es->buffer_size;
4844
4845 if (es->style & ES_MULTILINE)
4846 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4847 return FALSE;
4848 es->line_count = 1;
4849
4850 /*
4851 * In Win95 look and feel, the WS_BORDER style is replaced by the
4852 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4853 * control a nonclient area so we don't need to draw the border.
4854 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4855 * a nonclient area and we should handle painting the border ourselves.
4856 *
4857 * When making modifications please ensure that the code still works
4858 * for edit controls created directly with style 0x50800000, exStyle 0
4859 * (which should have a single pixel border)
4860 */
4861 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4862 es->style &= ~WS_BORDER;
4863 else if (es->style & WS_BORDER)
4864 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4865
4866 return TRUE;
4867 }
4868
4869 /*********************************************************************
4870 *
4871 * WM_PAINT
4872 *
4873 */
4874 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4875 {
4876 PAINTSTRUCT ps;
4877 INT i;
4878 HDC dc;
4879 HFONT old_font = 0;
4880 RECT rc;
4881 RECT rcClient;
4882 RECT rcLine;
4883 RECT rcRgn;
4884 HBRUSH brush;
4885 HBRUSH old_brush;
4886 INT bw, bh;
4887 BOOL rev = es->bEnableState &&
4888 ((es->flags & EF_FOCUSED) ||
4889 (es->style & ES_NOHIDESEL));
4890 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4891
4892 GetClientRect(es->hwndSelf, &rcClient);
4893
4894 /* get the background brush */
4895 brush = EDIT_NotifyCtlColor(es, dc);
4896
4897 /* paint the border and the background */
4898 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4899
4900 if(es->style & WS_BORDER) {
4901 bw = GetSystemMetrics(SM_CXBORDER);
4902 bh = GetSystemMetrics(SM_CYBORDER);
4903 rc = rcClient;
4904 if(es->style & ES_MULTILINE) {
4905 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4906 if(es->style & WS_VSCROLL) rc.right+=bw;
4907 }
4908
4909 /* Draw the frame. Same code as in nonclient.c */
4910 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4911 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4912 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4913 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4914 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4915 SelectObject(dc, old_brush);
4916
4917 /* Keep the border clean */
4918 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4919 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4920 }
4921
4922 GetClipBox(dc, &rc);
4923 FillRect(dc, &rc, brush);
4924
4925 IntersectClipRect(dc, es->format_rect.left,
4926 es->format_rect.top,
4927 es->format_rect.right,
4928 es->format_rect.bottom);
4929 if (es->style & ES_MULTILINE) {
4930 rc = rcClient;
4931 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4932 }
4933 if (es->font)
4934 old_font = SelectObject(dc, es->font);
4935
4936 if (!es->bEnableState)
4937 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4938 GetClipBox(dc, &rcRgn);
4939 if (es->style & ES_MULTILINE) {
4940 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4941 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4942 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4943 if (IntersectRect(&rc, &rcRgn, &rcLine))
4944 EDIT_PaintLine(es, dc, i, rev);
4945 }
4946 } else {
4947 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4948 if (IntersectRect(&rc, &rcRgn, &rcLine))
4949 EDIT_PaintLine(es, dc, 0, rev);
4950 }
4951 if (es->font)
4952 SelectObject(dc, old_font);
4953
4954 if (!hdc)
4955 EndPaint(es->hwndSelf, &ps);
4956 }
4957
4958
4959 /*********************************************************************
4960 *
4961 * WM_PASTE
4962 *
4963 */
4964 static void EDIT_WM_Paste(EDITSTATE *es)
4965 {
4966 HGLOBAL hsrc;
4967 LPWSTR src;
4968
4969 /* Protect read-only edit control from modification */
4970 if(es->style & ES_READONLY)
4971 return;
4972
4973 OpenClipboard(es->hwndSelf);
4974 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4975 src = (LPWSTR)GlobalLock(hsrc);
4976 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4977 GlobalUnlock(hsrc);
4978 }
4979 else if (es->style & ES_PASSWORD) {
4980 /* clear selected text in password edit box even with empty clipboard */
4981 const WCHAR empty_strW[] = { 0 };
4982 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
4983 }
4984 CloseClipboard();
4985 }
4986
4987
4988 /*********************************************************************
4989 *
4990 * WM_SETFOCUS
4991 *
4992 */
4993 static void EDIT_WM_SetFocus(EDITSTATE *es)
4994 {
4995 es->flags |= EF_FOCUSED;
4996
4997 if (!(es->style & ES_NOHIDESEL))
4998 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4999
5000 /* single line edit updates itself */
5001 if (!(es->style & ES_MULTILINE))
5002 {
5003 HDC hdc = GetDC(es->hwndSelf);
5004 EDIT_WM_Paint(es, hdc);
5005 ReleaseDC(es->hwndSelf, hdc);
5006 }
5007
5008 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5009 EDIT_SetCaretPos(es, es->selection_end,
5010 es->flags & EF_AFTER_WRAP);
5011 ShowCaret(es->hwndSelf);
5012 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
5013 }
5014
5015
5016 /*********************************************************************
5017 *
5018 * WM_SETFONT
5019 *
5020 * With Win95 look the margins are set to default font value unless
5021 * the system font (font == 0) is being set, in which case they are left
5022 * unchanged.
5023 *
5024 */
5025 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
5026 {
5027 TEXTMETRICW tm;
5028 HDC dc;
5029 HFONT old_font = 0;
5030 RECT clientRect;
5031
5032 es->font = font;
5033 dc = GetDC(es->hwndSelf);
5034 if (font)
5035 old_font = SelectObject(dc, font);
5036 GetTextMetricsW(dc, &tm);
5037 es->line_height = tm.tmHeight;
5038 es->char_width = tm.tmAveCharWidth;
5039 if (font)
5040 SelectObject(dc, old_font);
5041 ReleaseDC(es->hwndSelf, dc);
5042
5043 /* Reset the format rect and the margins */
5044 GetClientRect(es->hwndSelf, &clientRect);
5045 EDIT_SetRectNP(es, &clientRect);
5046 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
5047 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
5048
5049 if (es->style & ES_MULTILINE)
5050 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
5051 else
5052 EDIT_CalcLineWidth_SL(es);
5053
5054 if (redraw)
5055 EDIT_UpdateText(es, NULL, TRUE);
5056 if (es->flags & EF_FOCUSED) {
5057 DestroyCaret();
5058 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5059 EDIT_SetCaretPos(es, es->selection_end,
5060 es->flags & EF_AFTER_WRAP);
5061 ShowCaret(es->hwndSelf);
5062 }
5063 }
5064
5065
5066 /*********************************************************************
5067 *
5068 * WM_SETTEXT
5069 *
5070 * NOTES
5071 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5072 * The modified flag is reset. No notifications are sent.
5073 *
5074 * For single-line controls, reception of WM_SETTEXT triggers:
5075 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5076 *
5077 */
5078 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5079 {
5080 LPWSTR textW = NULL;
5081 if (!unicode && text)
5082 {
5083 LPCSTR textA = (LPCSTR)text;
5084 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5085 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5086 if (textW)
5087 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5088 text = textW;
5089 }
5090
5091 if (es->flags & EF_UPDATE)
5092 /* fixed this bug once; complain if we see it about to happen again. */
5093 ERR("SetSel may generate UPDATE message whose handler may reset "
5094 "selection.\n");
5095
5096 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5097 if (text)
5098 {
5099 TRACE("%s\n", debugstr_w(text));
5100 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5101 if(!unicode)
5102 HeapFree(GetProcessHeap(), 0, textW);
5103 }
5104 else
5105 {
5106 static const WCHAR empty_stringW[] = {0};
5107 TRACE("<NULL>\n");
5108 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5109 }
5110 es->x_offset = 0;
5111 es->flags &= ~EF_MODIFIED;
5112 EDIT_EM_SetSel(es, 0, 0, FALSE);
5113
5114 /* Send the notification after the selection start and end have been set
5115 * edit control doesn't send notification on WM_SETTEXT
5116 * if it is multiline, or it is part of combobox
5117 */
5118 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5119 {
5120 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5121 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5122 }
5123 EDIT_EM_ScrollCaret(es);
5124 EDIT_UpdateScrollInfo(es);
5125 }
5126
5127
5128 /*********************************************************************
5129 *
5130 * WM_SIZE
5131 *
5132 */
5133 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5134 {
5135 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5136 RECT rc;
5137 TRACE("width = %d, height = %d\n", width, height);
5138 SetRect(&rc, 0, 0, width, height);
5139 EDIT_SetRectNP(es, &rc);
5140 EDIT_UpdateText(es, NULL, TRUE);
5141 }
5142 }
5143
5144
5145 /*********************************************************************
5146 *
5147 * WM_STYLECHANGED
5148 *
5149 * This message is sent by SetWindowLong on having changed either the Style
5150 * or the extended style.
5151 *
5152 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5153 *
5154 * See also EDIT_WM_NCCreate
5155 *
5156 * It appears that the Windows version of the edit control allows the style
5157 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5158 * style variable which will generally be different. In this function we
5159 * update the internal style based on what changed in the externally visible
5160 * style.
5161 *
5162 * Much of this content as based upon the MSDN, especially:
5163 * Platform SDK Documentation -> User Interface Services ->
5164 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5165 * Edit Control Styles
5166 */
5167 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5168 {
5169 if (GWL_STYLE == which) {
5170 DWORD style_change_mask;
5171 DWORD new_style;
5172 /* Only a subset of changes can be applied after the control
5173 * has been created.
5174 */
5175 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5176 ES_NUMBER;
5177 if (es->style & ES_MULTILINE)
5178 style_change_mask |= ES_WANTRETURN;
5179
5180 new_style = style->styleNew & style_change_mask;
5181
5182 /* Number overrides lowercase overrides uppercase (at least it
5183 * does in Win95). However I'll bet that ES_NUMBER would be
5184 * invalid under Win 3.1.
5185 */
5186 if (new_style & ES_NUMBER) {
5187 ; /* do not override the ES_NUMBER */
5188 } else if (new_style & ES_LOWERCASE) {
5189 new_style &= ~ES_UPPERCASE;
5190 }
5191
5192 es->style = (es->style & ~style_change_mask) | new_style;
5193 } else if (GWL_EXSTYLE == which) {
5194 ; /* FIXME - what is needed here */
5195 } else {
5196 WARN ("Invalid style change %ld\n",which);
5197 }
5198
5199 return 0;
5200 }
5201
5202 /*********************************************************************
5203 *
5204 * WM_SYSKEYDOWN
5205 *
5206 */
5207 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5208 {
5209 if ((key == VK_BACK) && (key_data & 0x2000)) {
5210 if (EDIT_EM_CanUndo(es))
5211 EDIT_EM_Undo(es);
5212 return 0;
5213 } else if (key == VK_UP || key == VK_DOWN) {
5214 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5215 return 0;
5216 }
5217 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5218 }
5219
5220
5221 /*********************************************************************
5222 *
5223 * WM_TIMER
5224 *
5225 */
5226 static void EDIT_WM_Timer(EDITSTATE *es)
5227 {
5228 if (es->region_posx < 0) {
5229 EDIT_MoveBackward(es, TRUE);
5230 } else if (es->region_posx > 0) {
5231 EDIT_MoveForward(es, TRUE);
5232 }
5233 /*
5234 * FIXME: gotta do some vertical scrolling here, like
5235 * EDIT_EM_LineScroll(hwnd, 0, 1);
5236 */
5237 }
5238
5239 /*********************************************************************
5240 *
5241 * WM_VSCROLL
5242 *
5243 */
5244 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5245 {
5246 INT dy;
5247
5248 if (!(es->style & ES_MULTILINE))
5249 return 0;
5250
5251 if (!(es->style & ES_AUTOVSCROLL))
5252 return 0;
5253
5254 dy = 0;
5255 switch (action) {
5256 case SB_LINEUP:
5257 case SB_LINEDOWN:
5258 case SB_PAGEUP:
5259 case SB_PAGEDOWN:
5260 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5261 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5262 (action == SB_PAGEUP ? "SB_PAGEUP" :
5263 "SB_PAGEDOWN"))));
5264 EDIT_EM_Scroll(es, action);
5265 return 0;
5266 case SB_TOP:
5267 TRACE("SB_TOP\n");
5268 dy = -es->y_offset;
5269 break;
5270 case SB_BOTTOM:
5271 TRACE("SB_BOTTOM\n");
5272 dy = es->line_count - 1 - es->y_offset;
5273 break;
5274 case SB_THUMBTRACK:
5275 TRACE("SB_THUMBTRACK %d\n", pos);
5276 es->flags |= EF_VSCROLL_TRACK;
5277 if(es->style & WS_VSCROLL)
5278 dy = pos - es->y_offset;
5279 else
5280 {
5281 /* Assume default scroll range 0-100 */
5282 INT vlc, new_y;
5283 /* Sanity check */
5284 if(pos < 0 || pos > 100) return 0;
5285 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5286 new_y = pos * (es->line_count - vlc) / 100;
5287 dy = es->line_count ? (new_y - es->y_offset) : 0;
5288 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5289 es->line_count, es->y_offset, pos, dy);
5290 }
5291 break;
5292 case SB_THUMBPOSITION:
5293 TRACE("SB_THUMBPOSITION %d\n", pos);
5294 es->flags &= ~EF_VSCROLL_TRACK;
5295 if(es->style & WS_VSCROLL)
5296 dy = pos - es->y_offset;
5297 else
5298 {
5299 /* Assume default scroll range 0-100 */
5300 INT vlc, new_y;
5301 /* Sanity check */
5302 if(pos < 0 || pos > 100) return 0;
5303 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5304 new_y = pos * (es->line_count - vlc) / 100;
5305 dy = es->line_count ? (new_y - es->y_offset) : 0;
5306 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5307 es->line_count, es->y_offset, pos, dy);
5308 }
5309 if (!dy)
5310 {
5311 /* force scroll info update */
5312 EDIT_UpdateScrollInfo(es);
5313 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5314 }
5315 break;
5316 case SB_ENDSCROLL:
5317 TRACE("SB_ENDSCROLL\n");
5318 break;
5319 /*
5320 * FIXME : the next two are undocumented !
5321 * Are we doing the right thing ?
5322 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5323 * although it's also a regular control message.
5324 */
5325 case EM_GETTHUMB: /* this one is used by NT notepad */
5326 case EM_GETTHUMB16:
5327 {
5328 LRESULT ret;
5329 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5330 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5331 else
5332 {
5333 /* Assume default scroll range 0-100 */
5334 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5335 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5336 }
5337 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5338 return ret;
5339 }
5340 case EM_LINESCROLL16:
5341 TRACE("EM_LINESCROLL16 %d\n", pos);
5342 dy = pos;
5343 break;
5344
5345 default:
5346 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5347 action, action);
5348 return 0;
5349 }
5350 if (dy)
5351 EDIT_EM_LineScroll(es, 0, dy);
5352 return 0;
5353 }
5354
5355 /*********************************************************************
5356 *
5357 * EDIT_UpdateText
5358 *
5359 */
5360 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5361 {
5362 if (es->flags & EF_UPDATE) {
5363 es->flags &= ~EF_UPDATE;
5364 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5365 }
5366 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5367 }
5368
5369
5370 /*********************************************************************
5371 *
5372 * EDIT_UpdateText
5373 *
5374 */
5375 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
5376 {
5377 if (es->flags & EF_UPDATE) {
5378 es->flags &= ~EF_UPDATE;
5379 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5380 }
5381 InvalidateRect(es->hwndSelf, rc, bErase);
5382 }
5383
5384 /********************************************************************
5385 *
5386 * The Following code is to handle inline editing from IMEs
5387 */
5388
5389 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
5390 {
5391 LONG buflen;
5392 LPWSTR lpCompStr = NULL;
5393 LPSTR lpCompStrAttr = NULL;
5394 DWORD dwBufLenAttr;
5395
5396 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5397
5398 if (buflen < 0)
5399 {
5400 return;
5401 }
5402
5403 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
5404 if (!lpCompStr)
5405 {
5406 ERR("Unable to allocate IME CompositionString\n");
5407 return;
5408 }
5409
5410 if (buflen)
5411 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
5412 lpCompStr[buflen/sizeof(WCHAR)] = 0;
5413
5414 if (CompFlag & GCS_COMPATTR)
5415 {
5416 /*
5417 * We do not use the attributes yet. it would tell us what characters
5418 * are in transition and which are converted or decided upon
5419 */
5420 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5421 if (dwBufLenAttr)
5422 {
5423 dwBufLenAttr ++;
5424 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
5425 if (!lpCompStrAttr)
5426 {
5427 ERR("Unable to allocate IME Attribute String\n");
5428 HeapFree(GetProcessHeap(),0,lpCompStr);
5429 return;
5430 }
5431 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5432 dwBufLenAttr);
5433 lpCompStrAttr[dwBufLenAttr] = 0;
5434 }
5435 else
5436 lpCompStrAttr = NULL;
5437 }
5438
5439 /* check for change in composition start */
5440 if (es->selection_end < es->composition_start)
5441 es->composition_start = es->selection_end;
5442
5443 /* replace existing selection string */
5444 es->selection_start = es->composition_start;
5445
5446 if (es->composition_len > 0)
5447 es->selection_end = es->composition_start + es->composition_len;
5448 else
5449 es->selection_end = es->selection_start;
5450
5451 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5452 es->composition_len = abs(es->composition_start - es->selection_end);
5453
5454 es->selection_start = es->composition_start;
5455 es->selection_end = es->selection_start + es->composition_len;
5456
5457 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5458 HeapFree(GetProcessHeap(),0,lpCompStr);
5459 }
5460
5461 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
5462 {
5463 LONG buflen;
5464 LPWSTR lpResultStr;
5465
5466 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5467 if (buflen <= 0)
5468 {
5469 return;
5470 }
5471
5472 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
5473 if (!lpResultStr)
5474 {
5475 ERR("Unable to alloc buffer for IME string\n");
5476 return;
5477 }
5478
5479 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
5480 lpResultStr[buflen/sizeof(WCHAR)] = 0;
5481
5482 /* check for change in composition start */
5483 if (es->selection_end < es->composition_start)
5484 es->composition_start = es->selection_end;
5485
5486 es->selection_start = es->composition_start;
5487 es->selection_end = es->composition_start + es->composition_len;
5488 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5489 es->composition_start = es->selection_end;
5490 es->composition_len = 0;
5491
5492 HeapFree(GetProcessHeap(),0,lpResultStr);
5493 }
5494
5495 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5496 {
5497 HIMC hIMC;
5498 int cursor;
5499
5500 if (es->composition_len == 0 && es->selection_start != es->selection_end)
5501 {
5502 static const WCHAR empty_stringW[] = {0};
5503 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
5504 es->composition_start = es->selection_end;
5505 }
5506
5507 hIMC = ImmGetContext(hwnd);
5508 if (!hIMC)
5509 return;
5510
5511 if (CompFlag & GCS_RESULTSTR)
5512 EDIT_GetResultStr(hIMC, es);
5513 if (CompFlag & GCS_COMPSTR)
5514 EDIT_GetCompositionStr(hIMC, CompFlag, es);
5515 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
5516 ImmReleaseContext(hwnd, hIMC);
5517 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
5518 }
Windows API implementation