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user32: Implement WM_UNICHAR for edit control.
[wine/gsoc_dplay.git] / dlls / user32 / edit.c
blobdcf95507543111ed58eff4c5f84d33628c492f1b
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_UNICHAR:
864 if (unicode)
865 {
866 if (wParam == UNICODE_NOCHAR) return TRUE;
867 if (wParam <= 0x000fffff)
868 {
869 if(wParam > 0xffff) /* convert to surrogates */
870 {
871 wParam -= 0x10000;
872 EDIT_WM_Char(es, (wParam >> 10) + 0xd800);
873 EDIT_WM_Char(es, (wParam & 0x03ff) + 0xdc00);
874 }
875 else EDIT_WM_Char(es, wParam);
876 }
877 return 0;
878 }
879 break;
880
881 case WM_CLEAR:
882 EDIT_WM_Clear(es);
883 break;
884
885 case WM_COMMAND:
886 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
887 break;
888
889 case WM_CONTEXTMENU:
890 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
891 break;
892
893 case WM_COPY:
894 EDIT_WM_Copy(es);
895 break;
896
897 case WM_CREATE:
898 if(unicode)
899 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
900 else
901 {
902 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
903 LPWSTR nameW = NULL;
904 if(nameA)
905 {
906 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
907 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
908 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
909 }
910 result = EDIT_WM_Create(es, nameW);
911 HeapFree(GetProcessHeap(), 0, nameW);
912 }
913 break;
914
915 case WM_CUT:
916 EDIT_WM_Cut(es);
917 break;
918
919 case WM_ENABLE:
920 es->bEnableState = (BOOL) wParam;
921 EDIT_UpdateText(es, NULL, TRUE);
922 break;
923
924 case WM_ERASEBKGND:
925 /* we do the proper erase in EDIT_WM_Paint */
926 result = 1;
927 break;
928
929 case WM_GETFONT:
930 result = (LRESULT)es->font;
931 break;
932
933 case WM_GETTEXT:
934 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
935 break;
936
937 case WM_GETTEXTLENGTH:
938 if (unicode) result = get_text_length(es);
939 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
940 NULL, 0, NULL, NULL );
941 break;
942
943 case WM_HSCROLL:
944 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
945 break;
946
947 case WM_KEYDOWN:
948 result = EDIT_WM_KeyDown(es, (INT)wParam);
949 break;
950
951 case WM_KILLFOCUS:
952 result = EDIT_WM_KillFocus(es);
953 break;
954
955 case WM_LBUTTONDBLCLK:
956 result = EDIT_WM_LButtonDblClk(es);
957 break;
958
959 case WM_LBUTTONDOWN:
960 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
961 break;
962
963 case WM_LBUTTONUP:
964 result = EDIT_WM_LButtonUp(es);
965 break;
966
967 case WM_MBUTTONDOWN:
968 result = EDIT_WM_MButtonDown(es);
969 break;
970
971 case WM_MOUSEMOVE:
972 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
973 break;
974
975 case WM_PRINTCLIENT:
976 case WM_PAINT:
977 EDIT_WM_Paint(es, (HDC)wParam);
978 break;
979
980 case WM_PASTE:
981 EDIT_WM_Paste(es);
982 break;
983
984 case WM_SETFOCUS:
985 EDIT_WM_SetFocus(es);
986 break;
987
988 case WM_SETFONT:
989 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
990 break;
991
992 case WM_SETREDRAW:
993 /* FIXME: actually set an internal flag and behave accordingly */
994 break;
995
996 case WM_SETTEXT:
997 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
998 result = TRUE;
999 break;
1000
1001 case WM_SIZE:
1002 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
1003 break;
1004
1005 case WM_STYLECHANGED:
1006 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
1007 break;
1008
1009 case WM_STYLECHANGING:
1010 result = 0; /* See EDIT_WM_StyleChanged */
1011 break;
1012
1013 case WM_SYSKEYDOWN:
1014 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
1015 break;
1016
1017 case WM_TIMER:
1018 EDIT_WM_Timer(es);
1019 break;
1020
1021 case WM_VSCROLL:
1022 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
1023 break;
1024
1025 case WM_MOUSEWHEEL:
1026 {
1027 int gcWheelDelta = 0;
1028 UINT pulScrollLines = 3;
1029 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1030
1031 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1032 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1033 break;
1034 }
1035 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1036 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1037 {
1038 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1039 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1040 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1041 }
1042 }
1043 break;
1044
1045
1046 /* IME messages to make the edit control IME aware */
1047 case WM_IME_SETCONTEXT:
1048 break;
1049
1050 case WM_IME_STARTCOMPOSITION:
1051 es->composition_start = es->selection_end;
1052 es->composition_len = 0;
1053 break;
1054
1055 case WM_IME_COMPOSITION:
1056 EDIT_ImeComposition(hwnd, lParam, es);
1057 break;
1058
1059 case WM_IME_ENDCOMPOSITION:
1060 if (es->composition_len > 0)
1061 {
1062 static const WCHAR empty_stringW[] = {0};
1063 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1064 es->selection_end = es->selection_start;
1065 es->composition_len= 0;
1066 }
1067 break;
1068
1069 case WM_IME_COMPOSITIONFULL:
1070 break;
1071
1072 case WM_IME_SELECT:
1073 break;
1074
1075 case WM_IME_CONTROL:
1076 break;
1077
1078 default:
1079 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1080 break;
1081 }
1082
1083 if (es) EDIT_UnlockBuffer(es, FALSE);
1084
1085 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1086
1087 return result;
1088 }
1089
1090 /*********************************************************************
1091 *
1092 * EditWndProcW (USER32.@)
1093 */
1094 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1095 {
1096 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1097 }
1098
1099 /*********************************************************************
1100 *
1101 * EditWndProc (USER32.@)
1102 */
1103 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1104 {
1105 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1106 }
1107
1108 /*********************************************************************
1109 *
1110 * EDIT_BuildLineDefs_ML
1111 *
1112 * Build linked list of text lines.
1113 * Lines can end with '\0' (last line), a character (if it is wrapped),
1114 * a soft return '\r\r\n' or a hard return '\r\n'
1115 *
1116 */
1117 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1118 {
1119 HDC dc;
1120 HFONT old_font = 0;
1121 LPWSTR current_position, cp;
1122 INT fw;
1123 LINEDEF *current_line;
1124 LINEDEF *previous_line;
1125 LINEDEF *start_line;
1126 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1127 INT line_count = es->line_count;
1128 INT orig_net_length;
1129 RECT rc;
1130
1131 if (istart == iend && delta == 0)
1132 return;
1133
1134 dc = GetDC(es->hwndSelf);
1135 if (es->font)
1136 old_font = SelectObject(dc, es->font);
1137
1138 previous_line = NULL;
1139 current_line = es->first_line_def;
1140
1141 /* Find starting line. istart must lie inside an existing line or
1142 * at the end of buffer */
1143 do {
1144 if (istart < current_line->index + current_line->length ||
1145 current_line->ending == END_0)
1146 break;
1147
1148 previous_line = current_line;
1149 current_line = current_line->next;
1150 line_index++;
1151 } while (current_line);
1152
1153 if (!current_line) /* Error occurred start is not inside previous buffer */
1154 {
1155 FIXME(" modification occurred outside buffer\n");
1156 ReleaseDC(es->hwndSelf, dc);
1157 return;
1158 }
1159
1160 /* Remember start of modifications in order to calculate update region */
1161 nstart_line = line_index;
1162 nstart_index = current_line->index;
1163
1164 /* We must start to reformat from the previous line since the modifications
1165 * may have caused the line to wrap upwards. */
1166 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1167 {
1168 line_index--;
1169 current_line = previous_line;
1170 }
1171 start_line = current_line;
1172
1173 fw = es->format_rect.right - es->format_rect.left;
1174 current_position = es->text + current_line->index;
1175 do {
1176 if (current_line != start_line)
1177 {
1178 if (!current_line || current_line->index + delta > current_position - es->text)
1179 {
1180 /* The buffer has been expanded, create a new line and
1181 insert it into the link list */
1182 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1183 new_line->next = previous_line->next;
1184 previous_line->next = new_line;
1185 current_line = new_line;
1186 es->line_count++;
1187 }
1188 else if (current_line->index + delta < current_position - es->text)
1189 {
1190 /* The previous line merged with this line so we delete this extra entry */
1191 previous_line->next = current_line->next;
1192 HeapFree(GetProcessHeap(), 0, current_line);
1193 current_line = previous_line->next;
1194 es->line_count--;
1195 continue;
1196 }
1197 else /* current_line->index + delta == current_position */
1198 {
1199 if (current_position - es->text > iend)
1200 break; /* We reached end of line modifications */
1201 /* else recalculate this line */
1202 }
1203 }
1204
1205 current_line->index = current_position - es->text;
1206 orig_net_length = current_line->net_length;
1207
1208 /* Find end of line */
1209 cp = current_position;
1210 while (*cp) {
1211 if (*cp == '\n') break;
1212 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1213 break;
1214 cp++;
1215 }
1216
1217 /* Mark type of line termination */
1218 if (!(*cp)) {
1219 current_line->ending = END_0;
1220 current_line->net_length = strlenW(current_position);
1221 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1222 current_line->ending = END_SOFT;
1223 current_line->net_length = cp - current_position - 1;
1224 } else if (*cp == '\n') {
1225 current_line->ending = END_RICH;
1226 current_line->net_length = cp - current_position;
1227 } else {
1228 current_line->ending = END_HARD;
1229 current_line->net_length = cp - current_position;
1230 }
1231
1232 /* Calculate line width */
1233 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1234 current_position, current_line->net_length,
1235 es->tabs_count, es->tabs));
1236
1237 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1238 if (!(es->style & ES_AUTOHSCROLL)) {
1239 if (current_line->width > fw) {
1240 INT next = 0;
1241 INT prev;
1242 do {
1243 prev = next;
1244 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1245 prev + 1, current_line->net_length, WB_RIGHT);
1246 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1247 current_position, next, es->tabs_count, es->tabs));
1248 } while (current_line->width <= fw);
1249 if (!prev) { /* Didn't find a line break so force a break */
1250 next = 0;
1251 do {
1252 prev = next;
1253 next++;
1254 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1255 current_position, next, es->tabs_count, es->tabs));
1256 } while (current_line->width <= fw);
1257 if (!prev)
1258 prev = 1;
1259 }
1260
1261 /* If the first line we are calculating, wrapped before istart, we must
1262 * adjust istart in order for this to be reflected in the update region. */
1263 if (current_line->index == nstart_index && istart > current_line->index + prev)
1264 istart = current_line->index + prev;
1265 /* else if we are updating the previous line before the first line we
1266 * are re-calculating and it expanded */
1267 else if (current_line == start_line &&
1268 current_line->index != nstart_index && orig_net_length < prev)
1269 {
1270 /* Line expanded due to an upwards line wrap so we must partially include
1271 * previous line in update region */
1272 nstart_line = line_index;
1273 nstart_index = current_line->index;
1274 istart = current_line->index + orig_net_length;
1275 }
1276
1277 current_line->net_length = prev;
1278 current_line->ending = END_WRAP;
1279 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1280 current_line->net_length, es->tabs_count, es->tabs));
1281 }
1282 else if (current_line == start_line &&
1283 current_line->index != nstart_index &&
1284 orig_net_length < current_line->net_length) {
1285 /* The previous line expanded but it's still not as wide as the client rect */
1286 /* The expansion is due to an upwards line wrap so we must partially include
1287 it in the update region */
1288 nstart_line = line_index;
1289 nstart_index = current_line->index;
1290 istart = current_line->index + orig_net_length;
1291 }
1292 }
1293
1294
1295 /* Adjust length to include line termination */
1296 switch (current_line->ending) {
1297 case END_SOFT:
1298 current_line->length = current_line->net_length + 3;
1299 break;
1300 case END_RICH:
1301 current_line->length = current_line->net_length + 1;
1302 break;
1303 case END_HARD:
1304 current_line->length = current_line->net_length + 2;
1305 break;
1306 case END_WRAP:
1307 case END_0:
1308 current_line->length = current_line->net_length;
1309 break;
1310 }
1311 es->text_width = max(es->text_width, current_line->width);
1312 current_position += current_line->length;
1313 previous_line = current_line;
1314 current_line = current_line->next;
1315 line_index++;
1316 } while (previous_line->ending != END_0);
1317
1318 /* Finish adjusting line indexes by delta or remove hanging lines */
1319 if (previous_line->ending == END_0)
1320 {
1321 LINEDEF *pnext = NULL;
1322
1323 previous_line->next = NULL;
1324 while (current_line)
1325 {
1326 pnext = current_line->next;
1327 HeapFree(GetProcessHeap(), 0, current_line);
1328 current_line = pnext;
1329 es->line_count--;
1330 }
1331 }
1332 else if (delta != 0)
1333 {
1334 while (current_line)
1335 {
1336 current_line->index += delta;
1337 current_line = current_line->next;
1338 }
1339 }
1340
1341 /* Calculate rest of modification rectangle */
1342 if (hrgn)
1343 {
1344 HRGN tmphrgn;
1345 /*
1346 * We calculate two rectangles. One for the first line which may have
1347 * an indent with respect to the format rect. The other is a format-width
1348 * rectangle that spans the rest of the lines that changed or moved.
1349 */
1350 rc.top = es->format_rect.top + nstart_line * es->line_height -
1351 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1352 rc.bottom = rc.top + es->line_height;
1353 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1354 rc.left = es->format_rect.left;
1355 else
1356 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1357 es->text + nstart_index, istart - nstart_index,
1358 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1359 rc.right = es->format_rect.right;
1360 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1361
1362 rc.top = rc.bottom;
1363 rc.left = es->format_rect.left;
1364 rc.right = es->format_rect.right;
1365 /*
1366 * If lines were added or removed we must re-paint the remainder of the
1367 * lines since the remaining lines were either shifted up or down.
1368 */
1369 if (line_count < es->line_count) /* We added lines */
1370 rc.bottom = es->line_count * es->line_height;
1371 else if (line_count > es->line_count) /* We removed lines */
1372 rc.bottom = line_count * es->line_height;
1373 else
1374 rc.bottom = line_index * es->line_height;
1375 rc.bottom += es->format_rect.top;
1376 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1377 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1378 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1379 DeleteObject(tmphrgn);
1380 }
1381
1382 if (es->font)
1383 SelectObject(dc, old_font);
1384
1385 ReleaseDC(es->hwndSelf, dc);
1386 }
1387
1388 /*********************************************************************
1389 *
1390 * EDIT_CalcLineWidth_SL
1391 *
1392 */
1393 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1394 {
1395 SIZE size;
1396 LPWSTR text;
1397 HDC dc;
1398 HFONT old_font = 0;
1399
1400 text = EDIT_GetPasswordPointer_SL(es);
1401
1402 dc = GetDC(es->hwndSelf);
1403 if (es->font)
1404 old_font = SelectObject(dc, es->font);
1405
1406 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1407
1408 if (es->font)
1409 SelectObject(dc, old_font);
1410 ReleaseDC(es->hwndSelf, dc);
1411
1412 if (es->style & ES_PASSWORD)
1413 HeapFree(GetProcessHeap(), 0, text);
1414
1415 es->text_width = size.cx;
1416 }
1417
1418 /*********************************************************************
1419 *
1420 * EDIT_CallWordBreakProc
1421 *
1422 * Call appropriate WordBreakProc (internal or external).
1423 *
1424 * Note: The "start" argument should always be an index referring
1425 * to es->text. The actual wordbreak proc might be
1426 * 16 bit, so we can't always pass any 32 bit LPSTR.
1427 * Hence we assume that es->text is the buffer that holds
1428 * the string under examination (we can decide this for ourselves).
1429 *
1430 */
1431 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1432 {
1433 INT ret;
1434
1435 if (es->word_break_proc16) {
1436 HGLOBAL16 hglob16;
1437 SEGPTR segptr;
1438 INT countA;
1439 WORD args[5];
1440 DWORD result;
1441
1442 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1443 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1444 segptr = WOWGlobalLock16(hglob16);
1445 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1446 args[4] = SELECTOROF(segptr);
1447 args[3] = OFFSETOF(segptr);
1448 args[2] = index;
1449 args[1] = countA;
1450 args[0] = action;
1451 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1452 ret = LOWORD(result);
1453 GlobalUnlock16(hglob16);
1454 GlobalFree16(hglob16);
1455 }
1456 else if (es->word_break_proc)
1457 {
1458 if(es->is_unicode)
1459 {
1460 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1461
1462 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1463 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1464 ret = wbpW(es->text + start, index, count, action);
1465 }
1466 else
1467 {
1468 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1469 INT countA;
1470 CHAR *textA;
1471
1472 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1473 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1474 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1475 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1476 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1477 ret = wbpA(textA, index, countA, action);
1478 HeapFree(GetProcessHeap(), 0, textA);
1479 }
1480 }
1481 else
1482 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1483
1484 return ret;
1485 }
1486
1487
1488 /*********************************************************************
1489 *
1490 * EDIT_CharFromPos
1491 *
1492 * Beware: This is not the function called on EM_CHARFROMPOS
1493 * The position _can_ be outside the formatting / client
1494 * rectangle
1495 * The return value is only the character index
1496 *
1497 */
1498 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1499 {
1500 INT index;
1501 HDC dc;
1502 HFONT old_font = 0;
1503 INT x_high = 0, x_low = 0;
1504
1505 if (es->style & ES_MULTILINE) {
1506 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1507 INT line_index = 0;
1508 LINEDEF *line_def = es->first_line_def;
1509 INT low, high;
1510 while ((line > 0) && line_def->next) {
1511 line_index += line_def->length;
1512 line_def = line_def->next;
1513 line--;
1514 }
1515 x += es->x_offset - es->format_rect.left;
1516 if (es->style & ES_RIGHT)
1517 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1518 else if (es->style & ES_CENTER)
1519 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1520 if (x >= line_def->width) {
1521 if (after_wrap)
1522 *after_wrap = (line_def->ending == END_WRAP);
1523 return line_index + line_def->net_length;
1524 }
1525 if (x <= 0) {
1526 if (after_wrap)
1527 *after_wrap = FALSE;
1528 return line_index;
1529 }
1530 dc = GetDC(es->hwndSelf);
1531 if (es->font)
1532 old_font = SelectObject(dc, es->font);
1533 low = line_index;
1534 high = line_index + line_def->net_length + 1;
1535 while (low < high - 1)
1536 {
1537 INT mid = (low + high) / 2;
1538 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1539 if (x_now > x) {
1540 high = mid;
1541 x_high = x_now;
1542 } else {
1543 low = mid;
1544 x_low = x_now;
1545 }
1546 }
1547 if (abs(x_high - x) + 1 <= abs(x_low - x))
1548 index = high;
1549 else
1550 index = low;
1551
1552 if (after_wrap)
1553 *after_wrap = ((index == line_index + line_def->net_length) &&
1554 (line_def->ending == END_WRAP));
1555 } else {
1556 LPWSTR text;
1557 SIZE size;
1558 if (after_wrap)
1559 *after_wrap = FALSE;
1560 x -= es->format_rect.left;
1561 if (!x)
1562 return es->x_offset;
1563
1564 if (!es->x_offset)
1565 {
1566 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1567 if (es->style & ES_RIGHT)
1568 x -= indent;
1569 else if (es->style & ES_CENTER)
1570 x -= indent / 2;
1571 }
1572
1573 text = EDIT_GetPasswordPointer_SL(es);
1574 dc = GetDC(es->hwndSelf);
1575 if (es->font)
1576 old_font = SelectObject(dc, es->font);
1577 if (x < 0)
1578 {
1579 INT low = 0;
1580 INT high = es->x_offset;
1581 while (low < high - 1)
1582 {
1583 INT mid = (low + high) / 2;
1584 GetTextExtentPoint32W( dc, text + mid,
1585 es->x_offset - mid, &size );
1586 if (size.cx > -x) {
1587 low = mid;
1588 x_low = size.cx;
1589 } else {
1590 high = mid;
1591 x_high = size.cx;
1592 }
1593 }
1594 if (abs(x_high + x) <= abs(x_low + x) + 1)
1595 index = high;
1596 else
1597 index = low;
1598 }
1599 else
1600 {
1601 INT low = es->x_offset;
1602 INT high = get_text_length(es) + 1;
1603 while (low < high - 1)
1604 {
1605 INT mid = (low + high) / 2;
1606 GetTextExtentPoint32W( dc, text + es->x_offset,
1607 mid - es->x_offset, &size );
1608 if (size.cx > x) {
1609 high = mid;
1610 x_high = size.cx;
1611 } else {
1612 low = mid;
1613 x_low = size.cx;
1614 }
1615 }
1616 if (abs(x_high - x) <= abs(x_low - x) + 1)
1617 index = high;
1618 else
1619 index = low;
1620 }
1621 if (es->style & ES_PASSWORD)
1622 HeapFree(GetProcessHeap(), 0, text);
1623 }
1624 if (es->font)
1625 SelectObject(dc, old_font);
1626 ReleaseDC(es->hwndSelf, dc);
1627 return index;
1628 }
1629
1630
1631 /*********************************************************************
1632 *
1633 * EDIT_ConfinePoint
1634 *
1635 * adjusts the point to be within the formatting rectangle
1636 * (so CharFromPos returns the nearest _visible_ character)
1637 *
1638 */
1639 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
1640 {
1641 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1642 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1643 }
1644
1645
1646 /*********************************************************************
1647 *
1648 * EDIT_GetLineRect
1649 *
1650 * Calculates the bounding rectangle for a line from a starting
1651 * column to an ending column.
1652 *
1653 */
1654 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1655 {
1656 INT line_index = EDIT_EM_LineIndex(es, line);
1657
1658 if (es->style & ES_MULTILINE)
1659 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1660 else
1661 rc->top = es->format_rect.top;
1662 rc->bottom = rc->top + es->line_height;
1663 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1664 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1665 }
1666
1667
1668 /*********************************************************************
1669 *
1670 * EDIT_GetPasswordPointer_SL
1671 *
1672 * note: caller should free the (optionally) allocated buffer
1673 *
1674 */
1675 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1676 {
1677 if (es->style & ES_PASSWORD) {
1678 INT len = get_text_length(es);
1679 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1680 text[len] = '\0';
1681 while(len) text[--len] = es->password_char;
1682 return text;
1683 } else
1684 return es->text;
1685 }
1686
1687
1688 /*********************************************************************
1689 *
1690 * EDIT_LockBuffer
1691 *
1692 * This acts as a LocalLock16(), but it locks only once. This way
1693 * you can call it whenever you like, without unlocking.
1694 *
1695 * Initially the edit control allocates a HLOCAL32 buffer
1696 * (32 bit linear memory handler). However, 16 bit application
1697 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1698 * handler). From that moment on we have to keep using this 16 bit memory
1699 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1700 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1701 * conversion.
1702 *
1703 */
1704 static void EDIT_LockBuffer(EDITSTATE *es)
1705 {
1706 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
1707 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1708
1709 if (!es->text) {
1710 CHAR *textA = NULL;
1711 UINT countA = 0;
1712 BOOL _16bit = FALSE;
1713
1714 if(es->hloc32W)
1715 {
1716 if(es->hloc32A)
1717 {
1718 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1719 textA = LocalLock(es->hloc32A);
1720 countA = strlen(textA) + 1;
1721 }
1722 else if(es->hloc16)
1723 {
1724 HANDLE16 oldDS = stack16->ds;
1725 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1726 stack16->ds = hInstance;
1727 textA = MapSL(LocalLock16(es->hloc16));
1728 stack16->ds = oldDS;
1729 countA = strlen(textA) + 1;
1730 _16bit = TRUE;
1731 }
1732 }
1733 else {
1734 ERR("no buffer ... please report\n");
1735 return;
1736 }
1737
1738 if(textA)
1739 {
1740 HLOCAL hloc32W_new;
1741 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1742 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1743 if(countW_new > es->buffer_size + 1)
1744 {
1745 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1746 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1747 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1748 if(hloc32W_new)
1749 {
1750 es->hloc32W = hloc32W_new;
1751 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1752 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1753 }
1754 else
1755 WARN("FAILED! Will synchronize partially\n");
1756 }
1757 }
1758
1759 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1760 es->text = LocalLock(es->hloc32W);
1761
1762 if(textA)
1763 {
1764 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1765 if(_16bit)
1766 {
1767 HANDLE16 oldDS = stack16->ds;
1768 stack16->ds = hInstance;
1769 LocalUnlock16(es->hloc16);
1770 stack16->ds = oldDS;
1771 }
1772 else
1773 LocalUnlock(es->hloc32A);
1774 }
1775 }
1776 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1777 es->lock_count++;
1778 }
1779
1780
1781 /*********************************************************************
1782 *
1783 * EDIT_SL_InvalidateText
1784 *
1785 * Called from EDIT_InvalidateText().
1786 * Does the job for single-line controls only.
1787 *
1788 */
1789 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1790 {
1791 RECT line_rect;
1792 RECT rc;
1793
1794 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1795 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1796 EDIT_UpdateText(es, &rc, TRUE);
1797 }
1798
1799
1800 /*********************************************************************
1801 *
1802 * EDIT_ML_InvalidateText
1803 *
1804 * Called from EDIT_InvalidateText().
1805 * Does the job for multi-line controls only.
1806 *
1807 */
1808 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1809 {
1810 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1811 INT sl = EDIT_EM_LineFromChar(es, start);
1812 INT el = EDIT_EM_LineFromChar(es, end);
1813 INT sc;
1814 INT ec;
1815 RECT rc1;
1816 RECT rcWnd;
1817 RECT rcLine;
1818 RECT rcUpdate;
1819 INT l;
1820
1821 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1822 return;
1823
1824 sc = start - EDIT_EM_LineIndex(es, sl);
1825 ec = end - EDIT_EM_LineIndex(es, el);
1826 if (sl < es->y_offset) {
1827 sl = es->y_offset;
1828 sc = 0;
1829 }
1830 if (el > es->y_offset + vlc) {
1831 el = es->y_offset + vlc;
1832 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1833 }
1834 GetClientRect(es->hwndSelf, &rc1);
1835 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1836 if (sl == el) {
1837 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1838 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1839 EDIT_UpdateText(es, &rcUpdate, TRUE);
1840 } else {
1841 EDIT_GetLineRect(es, sl, sc,
1842 EDIT_EM_LineLength(es,
1843 EDIT_EM_LineIndex(es, sl)),
1844 &rcLine);
1845 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1846 EDIT_UpdateText(es, &rcUpdate, TRUE);
1847 for (l = sl + 1 ; l < el ; l++) {
1848 EDIT_GetLineRect(es, l, 0,
1849 EDIT_EM_LineLength(es,
1850 EDIT_EM_LineIndex(es, l)),
1851 &rcLine);
1852 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1853 EDIT_UpdateText(es, &rcUpdate, TRUE);
1854 }
1855 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1856 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1857 EDIT_UpdateText(es, &rcUpdate, TRUE);
1858 }
1859 }
1860
1861
1862 /*********************************************************************
1863 *
1864 * EDIT_InvalidateText
1865 *
1866 * Invalidate the text from offset start up to, but not including,
1867 * offset end. Useful for (re)painting the selection.
1868 * Regions outside the linewidth are not invalidated.
1869 * end == -1 means end == TextLength.
1870 * start and end need not be ordered.
1871 *
1872 */
1873 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1874 {
1875 if (end == start)
1876 return;
1877
1878 if (end == -1)
1879 end = get_text_length(es);
1880
1881 if (end < start) {
1882 INT tmp = start;
1883 start = end;
1884 end = tmp;
1885 }
1886
1887 if (es->style & ES_MULTILINE)
1888 EDIT_ML_InvalidateText(es, start, end);
1889 else
1890 EDIT_SL_InvalidateText(es, start, end);
1891 }
1892
1893
1894 /*********************************************************************
1895 *
1896 * EDIT_MakeFit
1897 *
1898 * Try to fit size + 1 characters in the buffer.
1899 */
1900 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1901 {
1902 HLOCAL hNew32W;
1903
1904 if (size <= es->buffer_size)
1905 return TRUE;
1906
1907 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1908
1909 /* Force edit to unlock it's buffer. es->text now NULL */
1910 EDIT_UnlockBuffer(es, TRUE);
1911
1912 if (es->hloc32W) {
1913 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1914 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1915 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1916 es->hloc32W = hNew32W;
1917 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1918 }
1919 }
1920
1921 EDIT_LockBuffer(es);
1922
1923 if (es->buffer_size < size) {
1924 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1925 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1926 return FALSE;
1927 } else {
1928 TRACE("We now have %d+1\n", es->buffer_size);
1929 return TRUE;
1930 }
1931 }
1932
1933
1934 /*********************************************************************
1935 *
1936 * EDIT_MakeUndoFit
1937 *
1938 * Try to fit size + 1 bytes in the undo buffer.
1939 *
1940 */
1941 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1942 {
1943 UINT alloc_size;
1944
1945 if (size <= es->undo_buffer_size)
1946 return TRUE;
1947
1948 TRACE("trying to ReAlloc to %d+1\n", size);
1949
1950 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1951 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1952 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1953 return TRUE;
1954 }
1955 else
1956 {
1957 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1958 return FALSE;
1959 }
1960 }
1961
1962
1963 /*********************************************************************
1964 *
1965 * EDIT_MoveBackward
1966 *
1967 */
1968 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1969 {
1970 INT e = es->selection_end;
1971
1972 if (e) {
1973 e--;
1974 if ((es->style & ES_MULTILINE) && e &&
1975 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1976 e--;
1977 if (e && (es->text[e - 1] == '\r'))
1978 e--;
1979 }
1980 }
1981 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1982 EDIT_EM_ScrollCaret(es);
1983 }
1984
1985
1986 /*********************************************************************
1987 *
1988 * EDIT_MoveDown_ML
1989 *
1990 * Only for multi line controls
1991 * Move the caret one line down, on a column with the nearest
1992 * x coordinate on the screen (might be a different column).
1993 *
1994 */
1995 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1996 {
1997 INT s = es->selection_start;
1998 INT e = es->selection_end;
1999 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2000 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2001 INT x = (short)LOWORD(pos);
2002 INT y = (short)HIWORD(pos);
2003
2004 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
2005 if (!extend)
2006 s = e;
2007 EDIT_EM_SetSel(es, s, e, after_wrap);
2008 EDIT_EM_ScrollCaret(es);
2009 }
2010
2011
2012 /*********************************************************************
2013 *
2014 * EDIT_MoveEnd
2015 *
2016 */
2017 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
2018 {
2019 BOOL after_wrap = FALSE;
2020 INT e;
2021
2022 /* Pass a high value in x to make sure of receiving the end of the line */
2023 if (!ctrl && (es->style & ES_MULTILINE))
2024 e = EDIT_CharFromPos(es, 0x3fffffff,
2025 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2026 else
2027 e = get_text_length(es);
2028 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2029 EDIT_EM_ScrollCaret(es);
2030 }
2031
2032
2033 /*********************************************************************
2034 *
2035 * EDIT_MoveForward
2036 *
2037 */
2038 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2039 {
2040 INT e = es->selection_end;
2041
2042 if (es->text[e]) {
2043 e++;
2044 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2045 if (es->text[e] == '\n')
2046 e++;
2047 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2048 e += 2;
2049 }
2050 }
2051 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2052 EDIT_EM_ScrollCaret(es);
2053 }
2054
2055
2056 /*********************************************************************
2057 *
2058 * EDIT_MoveHome
2059 *
2060 * Home key: move to beginning of line.
2061 *
2062 */
2063 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
2064 {
2065 INT e;
2066
2067 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2068 if (!ctrl && (es->style & ES_MULTILINE))
2069 e = EDIT_CharFromPos(es, -es->x_offset,
2070 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2071 else
2072 e = 0;
2073 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2074 EDIT_EM_ScrollCaret(es);
2075 }
2076
2077
2078 /*********************************************************************
2079 *
2080 * EDIT_MovePageDown_ML
2081 *
2082 * Only for multi line controls
2083 * Move the caret one page down, on a column with the nearest
2084 * x coordinate on the screen (might be a different column).
2085 *
2086 */
2087 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2088 {
2089 INT s = es->selection_start;
2090 INT e = es->selection_end;
2091 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2092 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2093 INT x = (short)LOWORD(pos);
2094 INT y = (short)HIWORD(pos);
2095
2096 e = EDIT_CharFromPos(es, x,
2097 y + (es->format_rect.bottom - es->format_rect.top),
2098 &after_wrap);
2099 if (!extend)
2100 s = e;
2101 EDIT_EM_SetSel(es, s, e, after_wrap);
2102 EDIT_EM_ScrollCaret(es);
2103 }
2104
2105
2106 /*********************************************************************
2107 *
2108 * EDIT_MovePageUp_ML
2109 *
2110 * Only for multi line controls
2111 * Move the caret one page up, on a column with the nearest
2112 * x coordinate on the screen (might be a different column).
2113 *
2114 */
2115 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2116 {
2117 INT s = es->selection_start;
2118 INT e = es->selection_end;
2119 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2120 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2121 INT x = (short)LOWORD(pos);
2122 INT y = (short)HIWORD(pos);
2123
2124 e = EDIT_CharFromPos(es, x,
2125 y - (es->format_rect.bottom - es->format_rect.top),
2126 &after_wrap);
2127 if (!extend)
2128 s = e;
2129 EDIT_EM_SetSel(es, s, e, after_wrap);
2130 EDIT_EM_ScrollCaret(es);
2131 }
2132
2133
2134 /*********************************************************************
2135 *
2136 * EDIT_MoveUp_ML
2137 *
2138 * Only for multi line controls
2139 * Move the caret one line up, on a column with the nearest
2140 * x coordinate on the screen (might be a different column).
2141 *
2142 */
2143 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2144 {
2145 INT s = es->selection_start;
2146 INT e = es->selection_end;
2147 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2148 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2149 INT x = (short)LOWORD(pos);
2150 INT y = (short)HIWORD(pos);
2151
2152 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2153 if (!extend)
2154 s = e;
2155 EDIT_EM_SetSel(es, s, e, after_wrap);
2156 EDIT_EM_ScrollCaret(es);
2157 }
2158
2159
2160 /*********************************************************************
2161 *
2162 * EDIT_MoveWordBackward
2163 *
2164 */
2165 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2166 {
2167 INT s = es->selection_start;
2168 INT e = es->selection_end;
2169 INT l;
2170 INT ll;
2171 INT li;
2172
2173 l = EDIT_EM_LineFromChar(es, e);
2174 ll = EDIT_EM_LineLength(es, e);
2175 li = EDIT_EM_LineIndex(es, l);
2176 if (e - li == 0) {
2177 if (l) {
2178 li = EDIT_EM_LineIndex(es, l - 1);
2179 e = li + EDIT_EM_LineLength(es, li);
2180 }
2181 } else {
2182 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2183 }
2184 if (!extend)
2185 s = e;
2186 EDIT_EM_SetSel(es, s, e, FALSE);
2187 EDIT_EM_ScrollCaret(es);
2188 }
2189
2190
2191 /*********************************************************************
2192 *
2193 * EDIT_MoveWordForward
2194 *
2195 */
2196 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2197 {
2198 INT s = es->selection_start;
2199 INT e = es->selection_end;
2200 INT l;
2201 INT ll;
2202 INT li;
2203
2204 l = EDIT_EM_LineFromChar(es, e);
2205 ll = EDIT_EM_LineLength(es, e);
2206 li = EDIT_EM_LineIndex(es, l);
2207 if (e - li == ll) {
2208 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2209 e = EDIT_EM_LineIndex(es, l + 1);
2210 } else {
2211 e = li + EDIT_CallWordBreakProc(es,
2212 li, e - li + 1, ll, WB_RIGHT);
2213 }
2214 if (!extend)
2215 s = e;
2216 EDIT_EM_SetSel(es, s, e, FALSE);
2217 EDIT_EM_ScrollCaret(es);
2218 }
2219
2220
2221 /*********************************************************************
2222 *
2223 * EDIT_PaintLine
2224 *
2225 */
2226 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2227 {
2228 INT s = es->selection_start;
2229 INT e = es->selection_end;
2230 INT li;
2231 INT ll;
2232 INT x;
2233 INT y;
2234 LRESULT pos;
2235
2236 if (es->style & ES_MULTILINE) {
2237 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2238 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2239 return;
2240 } else if (line)
2241 return;
2242
2243 TRACE("line=%d\n", line);
2244
2245 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2246 x = (short)LOWORD(pos);
2247 y = (short)HIWORD(pos);
2248 li = EDIT_EM_LineIndex(es, line);
2249 ll = EDIT_EM_LineLength(es, li);
2250 s = min(es->selection_start, es->selection_end);
2251 e = max(es->selection_start, es->selection_end);
2252 s = min(li + ll, max(li, s));
2253 e = min(li + ll, max(li, e));
2254 if (rev && (s != e) &&
2255 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2256 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2257 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2258 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2259 } else
2260 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2261 }
2262
2263
2264 /*********************************************************************
2265 *
2266 * EDIT_PaintText
2267 *
2268 */
2269 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2270 {
2271 COLORREF BkColor;
2272 COLORREF TextColor;
2273 LOGFONTW underline_font;
2274 HFONT hUnderline = 0;
2275 HFONT old_font = 0;
2276 INT ret;
2277 INT li;
2278 INT BkMode;
2279 SIZE size;
2280
2281 if (!count)
2282 return 0;
2283 BkMode = GetBkMode(dc);
2284 BkColor = GetBkColor(dc);
2285 TextColor = GetTextColor(dc);
2286 if (rev) {
2287 if (es->composition_len == 0)
2288 {
2289 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2290 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2291 SetBkMode( dc, OPAQUE);
2292 }
2293 else
2294 {
2295 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2296 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2297 underline_font.lfUnderline = TRUE;
2298 hUnderline = CreateFontIndirectW(&underline_font);
2299 old_font = SelectObject(dc,hUnderline);
2300 }
2301 }
2302 li = EDIT_EM_LineIndex(es, line);
2303 if (es->style & ES_MULTILINE) {
2304 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2305 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2306 } else {
2307 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2308 TextOutW(dc, x, y, text + li + col, count);
2309 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2310 ret = size.cx;
2311 if (es->style & ES_PASSWORD)
2312 HeapFree(GetProcessHeap(), 0, text);
2313 }
2314 if (rev) {
2315 if (es->composition_len == 0)
2316 {
2317 SetBkColor(dc, BkColor);
2318 SetTextColor(dc, TextColor);
2319 SetBkMode( dc, BkMode);
2320 }
2321 else
2322 {
2323 if (old_font)
2324 SelectObject(dc,old_font);
2325 if (hUnderline)
2326 DeleteObject(hUnderline);
2327 }
2328 }
2329 return ret;
2330 }
2331
2332
2333 /*********************************************************************
2334 *
2335 * EDIT_SetCaretPos
2336 *
2337 */
2338 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2339 BOOL after_wrap)
2340 {
2341 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2342 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2343 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2344 }
2345
2346
2347 /*********************************************************************
2348 *
2349 * EDIT_AdjustFormatRect
2350 *
2351 * Adjusts the format rectangle for the current font and the
2352 * current client rectangle.
2353 *
2354 */
2355 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2356 {
2357 RECT ClientRect;
2358
2359 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2360 if (es->style & ES_MULTILINE)
2361 {
2362 INT fw, vlc, max_x_offset, max_y_offset;
2363
2364 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2365 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2366
2367 /* correct es->x_offset */
2368 fw = es->format_rect.right - es->format_rect.left;
2369 max_x_offset = es->text_width - fw;
2370 if(max_x_offset < 0) max_x_offset = 0;
2371 if(es->x_offset > max_x_offset)
2372 es->x_offset = max_x_offset;
2373
2374 /* correct es->y_offset */
2375 max_y_offset = es->line_count - vlc;
2376 if(max_y_offset < 0) max_y_offset = 0;
2377 if(es->y_offset > max_y_offset)
2378 es->y_offset = max_y_offset;
2379
2380 /* force scroll info update */
2381 EDIT_UpdateScrollInfo(es);
2382 }
2383 else
2384 /* Windows doesn't care to fix text placement for SL controls */
2385 es->format_rect.bottom = es->format_rect.top + es->line_height;
2386
2387 /* Always stay within the client area */
2388 GetClientRect(es->hwndSelf, &ClientRect);
2389 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2390
2391 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2392 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2393
2394 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2395 }
2396
2397
2398 /*********************************************************************
2399 *
2400 * EDIT_SetRectNP
2401 *
2402 * note: this is not (exactly) the handler called on EM_SETRECTNP
2403 * it is also used to set the rect of a single line control
2404 *
2405 */
2406 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2407 {
2408 LONG_PTR ExStyle;
2409 INT bw, bh;
2410 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2411
2412 CopyRect(&es->format_rect, rc);
2413
2414 if (ExStyle & WS_EX_CLIENTEDGE) {
2415 es->format_rect.left++;
2416 es->format_rect.right--;
2417
2418 if (es->format_rect.bottom - es->format_rect.top
2419 >= es->line_height + 2)
2420 {
2421 es->format_rect.top++;
2422 es->format_rect.bottom--;
2423 }
2424 }
2425 else if (es->style & WS_BORDER) {
2426 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2427 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2428 es->format_rect.left += bw;
2429 es->format_rect.right -= bw;
2430 if (es->format_rect.bottom - es->format_rect.top
2431 >= es->line_height + 2 * bh)
2432 {
2433 es->format_rect.top += bh;
2434 es->format_rect.bottom -= bh;
2435 }
2436 }
2437
2438 es->format_rect.left += es->left_margin;
2439 es->format_rect.right -= es->right_margin;
2440 EDIT_AdjustFormatRect(es);
2441 }
2442
2443
2444 /*********************************************************************
2445 *
2446 * EDIT_UnlockBuffer
2447 *
2448 */
2449 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2450 {
2451
2452 /* Edit window might be already destroyed */
2453 if(!IsWindow(es->hwndSelf))
2454 {
2455 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2456 return;
2457 }
2458
2459 if (!es->lock_count) {
2460 ERR("lock_count == 0 ... please report\n");
2461 return;
2462 }
2463 if (!es->text) {
2464 ERR("es->text == 0 ... please report\n");
2465 return;
2466 }
2467
2468 if (force || (es->lock_count == 1)) {
2469 if (es->hloc32W) {
2470 CHAR *textA = NULL;
2471 UINT countA = 0;
2472 UINT countW = get_text_length(es) + 1;
2473 STACK16FRAME* stack16 = NULL;
2474 HANDLE16 oldDS = 0;
2475
2476 if(es->hloc32A)
2477 {
2478 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2479 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2480 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2481 countA = LocalSize(es->hloc32A);
2482 if(countA_new > countA)
2483 {
2484 HLOCAL hloc32A_new;
2485 UINT alloc_size = ROUND_TO_GROW(countA_new);
2486 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2487 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2488 if(hloc32A_new)
2489 {
2490 es->hloc32A = hloc32A_new;
2491 countA = LocalSize(hloc32A_new);
2492 TRACE("Real new size %d bytes\n", countA);
2493 }
2494 else
2495 WARN("FAILED! Will synchronize partially\n");
2496 }
2497 textA = LocalLock(es->hloc32A);
2498 }
2499 else if(es->hloc16)
2500 {
2501 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2502
2503 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2504 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2505
2506 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2507 oldDS = stack16->ds;
2508 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2509
2510 countA = LocalSize16(es->hloc16);
2511 if(countA_new > countA)
2512 {
2513 HLOCAL16 hloc16_new;
2514 UINT alloc_size = ROUND_TO_GROW(countA_new);
2515 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2516 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2517 if(hloc16_new)
2518 {
2519 es->hloc16 = hloc16_new;
2520 countA = LocalSize16(hloc16_new);
2521 TRACE("Real new size %d bytes\n", countA);
2522 }
2523 else
2524 WARN("FAILED! Will synchronize partially\n");
2525 }
2526 textA = MapSL(LocalLock16(es->hloc16));
2527 }
2528
2529 if(textA)
2530 {
2531 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2532 if(stack16)
2533 LocalUnlock16(es->hloc16);
2534 else
2535 LocalUnlock(es->hloc32A);
2536 }
2537
2538 if (stack16) stack16->ds = oldDS;
2539 LocalUnlock(es->hloc32W);
2540 es->text = NULL;
2541 }
2542 else {
2543 ERR("no buffer ... please report\n");
2544 return;
2545 }
2546 }
2547 es->lock_count--;
2548 }
2549
2550
2551 /*********************************************************************
2552 *
2553 * EDIT_UpdateScrollInfo
2554 *
2555 */
2556 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2557 {
2558 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2559 {
2560 SCROLLINFO si;
2561 si.cbSize = sizeof(SCROLLINFO);
2562 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2563 si.nMin = 0;
2564 si.nMax = es->line_count - 1;
2565 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2566 si.nPos = es->y_offset;
2567 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2568 si.nMin, si.nMax, si.nPage, si.nPos);
2569 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2570 }
2571
2572 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2573 {
2574 SCROLLINFO si;
2575 si.cbSize = sizeof(SCROLLINFO);
2576 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2577 si.nMin = 0;
2578 si.nMax = es->text_width - 1;
2579 si.nPage = es->format_rect.right - es->format_rect.left;
2580 si.nPos = es->x_offset;
2581 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2582 si.nMin, si.nMax, si.nPage, si.nPos);
2583 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2584 }
2585 }
2586
2587 /*********************************************************************
2588 *
2589 * EDIT_WordBreakProc
2590 *
2591 * Find the beginning of words.
2592 * Note: unlike the specs for a WordBreakProc, this function only
2593 * allows to be called without linebreaks between s[0] up to
2594 * s[count - 1]. Remember it is only called
2595 * internally, so we can decide this for ourselves.
2596 *
2597 */
2598 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2599 {
2600 INT ret = 0;
2601
2602 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2603
2604 if(!s) return 0;
2605
2606 switch (action) {
2607 case WB_LEFT:
2608 if (!count)
2609 break;
2610 if (index)
2611 index--;
2612 if (s[index] == ' ') {
2613 while (index && (s[index] == ' '))
2614 index--;
2615 if (index) {
2616 while (index && (s[index] != ' '))
2617 index--;
2618 if (s[index] == ' ')
2619 index++;
2620 }
2621 } else {
2622 while (index && (s[index] != ' '))
2623 index--;
2624 if (s[index] == ' ')
2625 index++;
2626 }
2627 ret = index;
2628 break;
2629 case WB_RIGHT:
2630 if (!count)
2631 break;
2632 if (index)
2633 index--;
2634 if (s[index] == ' ')
2635 while ((index < count) && (s[index] == ' ')) index++;
2636 else {
2637 while (s[index] && (s[index] != ' ') && (index < count))
2638 index++;
2639 while ((s[index] == ' ') && (index < count)) index++;
2640 }
2641 ret = index;
2642 break;
2643 case WB_ISDELIMITER:
2644 ret = (s[index] == ' ');
2645 break;
2646 default:
2647 ERR("unknown action code, please report !\n");
2648 break;
2649 }
2650 return ret;
2651 }
2652
2653
2654 /*********************************************************************
2655 *
2656 * EM_CHARFROMPOS
2657 *
2658 * returns line number (not index) in high-order word of result.
2659 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2660 * to Richedit, not to the edit control. Original documentation is valid.
2661 * FIXME: do the specs mean to return -1 if outside client area or
2662 * if outside formatting rectangle ???
2663 *
2664 */
2665 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2666 {
2667 POINT pt;
2668 RECT rc;
2669 INT index;
2670
2671 pt.x = x;
2672 pt.y = y;
2673 GetClientRect(es->hwndSelf, &rc);
2674 if (!PtInRect(&rc, pt))
2675 return -1;
2676
2677 index = EDIT_CharFromPos(es, x, y, NULL);
2678 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2679 }
2680
2681
2682 /*********************************************************************
2683 *
2684 * EM_FMTLINES
2685 *
2686 * Enable or disable soft breaks.
2687 *
2688 * This means: insert or remove the soft linebreak character (\r\r\n).
2689 * Take care to check if the text still fits the buffer after insertion.
2690 * If not, notify with EN_ERRSPACE.
2691 *
2692 */
2693 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2694 {
2695 es->flags &= ~EF_USE_SOFTBRK;
2696 if (add_eol) {
2697 es->flags |= EF_USE_SOFTBRK;
2698 FIXME("soft break enabled, not implemented\n");
2699 }
2700 return add_eol;
2701 }
2702
2703
2704 /*********************************************************************
2705 *
2706 * EM_GETHANDLE
2707 *
2708 * Hopefully this won't fire back at us.
2709 * We always start with a fixed buffer in the local heap.
2710 * Despite of the documentation says that the local heap is used
2711 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2712 * buffer on the local heap.
2713 *
2714 */
2715 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2716 {
2717 HLOCAL hLocal;
2718
2719 if (!(es->style & ES_MULTILINE))
2720 return 0;
2721
2722 if(es->is_unicode)
2723 hLocal = es->hloc32W;
2724 else
2725 {
2726 if(!es->hloc32A)
2727 {
2728 CHAR *textA;
2729 UINT countA, alloc_size;
2730 TRACE("Allocating 32-bit ANSI alias buffer\n");
2731 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2732 alloc_size = ROUND_TO_GROW(countA);
2733 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2734 {
2735 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2736 return 0;
2737 }
2738 textA = LocalLock(es->hloc32A);
2739 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2740 LocalUnlock(es->hloc32A);
2741 }
2742 hLocal = es->hloc32A;
2743 }
2744
2745 es->flags |= EF_APP_HAS_HANDLE;
2746 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2747 return hLocal;
2748 }
2749
2750
2751 /*********************************************************************
2752 *
2753 * EM_GETHANDLE16
2754 *
2755 * Hopefully this won't fire back at us.
2756 * We always start with a buffer in 32 bit linear memory.
2757 * However, with this message a 16 bit application requests
2758 * a handle of 16 bit local heap memory, where it expects to find
2759 * the text.
2760 * It's a pitty that from this moment on we have to use this
2761 * local heap, because applications may rely on the handle
2762 * in the future.
2763 *
2764 * In this function we'll try to switch to local heap.
2765 */
2766 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2767 {
2768 CHAR *textA;
2769 UINT countA, alloc_size;
2770 STACK16FRAME* stack16;
2771 HANDLE16 oldDS;
2772
2773 if (!(es->style & ES_MULTILINE))
2774 return 0;
2775
2776 if (es->hloc16)
2777 return es->hloc16;
2778
2779 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2780 oldDS = stack16->ds;
2781 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2782
2783 if (!LocalHeapSize16()) {
2784
2785 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2786 ERR("could not initialize local heap\n");
2787 goto done;
2788 }
2789 TRACE("local heap initialized\n");
2790 }
2791
2792 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2793 alloc_size = ROUND_TO_GROW(countA);
2794
2795 TRACE("Allocating 16-bit ANSI alias buffer\n");
2796 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2797 ERR("could not allocate new 16 bit buffer\n");
2798 goto done;
2799 }
2800
2801 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2802 ERR("could not lock new 16 bit buffer\n");
2803 LocalFree16(es->hloc16);
2804 es->hloc16 = 0;
2805 goto done;
2806 }
2807
2808 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2809 LocalUnlock16(es->hloc16);
2810 es->flags |= EF_APP_HAS_HANDLE;
2811
2812 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2813
2814 done:
2815 stack16->ds = oldDS;
2816 return es->hloc16;
2817 }
2818
2819
2820 /*********************************************************************
2821 *
2822 * EM_GETLINE
2823 *
2824 */
2825 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2826 {
2827 LPWSTR src;
2828 INT line_len, dst_len;
2829 INT i;
2830
2831 if (es->style & ES_MULTILINE) {
2832 if (line >= es->line_count)
2833 return 0;
2834 } else
2835 line = 0;
2836 i = EDIT_EM_LineIndex(es, line);
2837 src = es->text + i;
2838 line_len = EDIT_EM_LineLength(es, i);
2839 dst_len = *(WORD *)dst;
2840 if(unicode)
2841 {
2842 if(dst_len <= line_len)
2843 {
2844 memcpy(dst, src, dst_len * sizeof(WCHAR));
2845 return dst_len;
2846 }
2847 else /* Append 0 if enough space */
2848 {
2849 memcpy(dst, src, line_len * sizeof(WCHAR));
2850 dst[line_len] = 0;
2851 return line_len;
2852 }
2853 }
2854 else
2855 {
2856 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2857 if(!ret && line_len) /* Insufficient buffer size */
2858 return dst_len;
2859 if(ret < dst_len) /* Append 0 if enough space */
2860 ((LPSTR)dst)[ret] = 0;
2861 return ret;
2862 }
2863 }
2864
2865
2866 /*********************************************************************
2867 *
2868 * EM_GETSEL
2869 *
2870 */
2871 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2872 {
2873 UINT s = es->selection_start;
2874 UINT e = es->selection_end;
2875
2876 ORDER_UINT(s, e);
2877 if (start)
2878 *start = s;
2879 if (end)
2880 *end = e;
2881 return MAKELONG(s, e);
2882 }
2883
2884
2885 /*********************************************************************
2886 *
2887 * EM_GETTHUMB
2888 *
2889 * FIXME: is this right ? (or should it be only VSCROLL)
2890 * (and maybe only for edit controls that really have their
2891 * own scrollbars) (and maybe only for multiline controls ?)
2892 * All in all: very poorly documented
2893 *
2894 */
2895 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2896 {
2897 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2898 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2899 }
2900
2901
2902 /*********************************************************************
2903 *
2904 * EM_LINEFROMCHAR
2905 *
2906 */
2907 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2908 {
2909 INT line;
2910 LINEDEF *line_def;
2911
2912 if (!(es->style & ES_MULTILINE))
2913 return 0;
2914 if (index > (INT)get_text_length(es))
2915 return es->line_count - 1;
2916 if (index == -1)
2917 index = min(es->selection_start, es->selection_end);
2918
2919 line = 0;
2920 line_def = es->first_line_def;
2921 index -= line_def->length;
2922 while ((index >= 0) && line_def->next) {
2923 line++;
2924 line_def = line_def->next;
2925 index -= line_def->length;
2926 }
2927 return line;
2928 }
2929
2930
2931 /*********************************************************************
2932 *
2933 * EM_LINEINDEX
2934 *
2935 */
2936 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
2937 {
2938 INT line_index;
2939 const LINEDEF *line_def;
2940
2941 if (!(es->style & ES_MULTILINE))
2942 return 0;
2943 if (line >= es->line_count)
2944 return -1;
2945
2946 line_index = 0;
2947 line_def = es->first_line_def;
2948 if (line == -1) {
2949 INT index = es->selection_end - line_def->length;
2950 while ((index >= 0) && line_def->next) {
2951 line_index += line_def->length;
2952 line_def = line_def->next;
2953 index -= line_def->length;
2954 }
2955 } else {
2956 while (line > 0) {
2957 line_index += line_def->length;
2958 line_def = line_def->next;
2959 line--;
2960 }
2961 }
2962 return line_index;
2963 }
2964
2965
2966 /*********************************************************************
2967 *
2968 * EM_LINELENGTH
2969 *
2970 */
2971 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2972 {
2973 LINEDEF *line_def;
2974
2975 if (!(es->style & ES_MULTILINE))
2976 return get_text_length(es);
2977
2978 if (index == -1) {
2979 /* get the number of remaining non-selected chars of selected lines */
2980 INT32 l; /* line number */
2981 INT32 li; /* index of first char in line */
2982 INT32 count;
2983 l = EDIT_EM_LineFromChar(es, es->selection_start);
2984 /* # chars before start of selection area */
2985 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2986 l = EDIT_EM_LineFromChar(es, es->selection_end);
2987 /* # chars after end of selection */
2988 li = EDIT_EM_LineIndex(es, l);
2989 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2990 return count;
2991 }
2992 line_def = es->first_line_def;
2993 index -= line_def->length;
2994 while ((index >= 0) && line_def->next) {
2995 line_def = line_def->next;
2996 index -= line_def->length;
2997 }
2998 return line_def->net_length;
2999 }
3000
3001
3002 /*********************************************************************
3003 *
3004 * EM_LINESCROLL
3005 *
3006 * NOTE: dx is in average character widths, dy - in lines;
3007 *
3008 */
3009 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
3010 {
3011 if (!(es->style & ES_MULTILINE))
3012 return FALSE;
3013
3014 dx *= es->char_width;
3015 return EDIT_EM_LineScroll_internal(es, dx, dy);
3016 }
3017
3018 /*********************************************************************
3019 *
3020 * EDIT_EM_LineScroll_internal
3021 *
3022 * Version of EDIT_EM_LineScroll for internal use.
3023 * It doesn't refuse if ES_MULTILINE is set and assumes that
3024 * dx is in pixels, dy - in lines.
3025 *
3026 */
3027 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
3028 {
3029 INT nyoff;
3030 INT x_offset_in_pixels;
3031 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3032 es->line_height;
3033
3034 if (es->style & ES_MULTILINE)
3035 {
3036 x_offset_in_pixels = es->x_offset;
3037 }
3038 else
3039 {
3040 dy = 0;
3041 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3042 }
3043
3044 if (-dx > x_offset_in_pixels)
3045 dx = -x_offset_in_pixels;
3046 if (dx > es->text_width - x_offset_in_pixels)
3047 dx = es->text_width - x_offset_in_pixels;
3048 nyoff = max(0, es->y_offset + dy);
3049 if (nyoff >= es->line_count - lines_per_page)
3050 nyoff = max(0, es->line_count - lines_per_page);
3051 dy = (es->y_offset - nyoff) * es->line_height;
3052 if (dx || dy) {
3053 RECT rc1;
3054 RECT rc;
3055
3056 es->y_offset = nyoff;
3057 if(es->style & ES_MULTILINE)
3058 es->x_offset += dx;
3059 else
3060 es->x_offset += dx / es->char_width;
3061
3062 GetClientRect(es->hwndSelf, &rc1);
3063 IntersectRect(&rc, &rc1, &es->format_rect);
3064 ScrollWindowEx(es->hwndSelf, -dx, dy,
3065 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3066 /* force scroll info update */
3067 EDIT_UpdateScrollInfo(es);
3068 }
3069 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3070 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3071 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3072 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3073 return TRUE;
3074 }
3075
3076
3077 /*********************************************************************
3078 *
3079 * EM_POSFROMCHAR
3080 *
3081 */
3082 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3083 {
3084 INT len = get_text_length(es);
3085 INT l;
3086 INT li;
3087 INT x;
3088 INT y = 0;
3089 INT w;
3090 INT lw = 0;
3091 INT ll = 0;
3092 HDC dc;
3093 HFONT old_font = 0;
3094 SIZE size;
3095 LINEDEF *line_def;
3096
3097 index = min(index, len);
3098 dc = GetDC(es->hwndSelf);
3099 if (es->font)
3100 old_font = SelectObject(dc, es->font);
3101 if (es->style & ES_MULTILINE) {
3102 l = EDIT_EM_LineFromChar(es, index);
3103 y = (l - es->y_offset) * es->line_height;
3104 li = EDIT_EM_LineIndex(es, l);
3105 if (after_wrap && (li == index) && l) {
3106 INT l2 = l - 1;
3107 line_def = es->first_line_def;
3108 while (l2) {
3109 line_def = line_def->next;
3110 l2--;
3111 }
3112 if (line_def->ending == END_WRAP) {
3113 l--;
3114 y -= es->line_height;
3115 li = EDIT_EM_LineIndex(es, l);
3116 }
3117 }
3118
3119 line_def = es->first_line_def;
3120 while (line_def->index != li)
3121 line_def = line_def->next;
3122
3123 ll = line_def->net_length;
3124 lw = line_def->width;
3125
3126 w = es->format_rect.right - es->format_rect.left;
3127 if (es->style & ES_RIGHT)
3128 {
3129 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3130 es->tabs_count, es->tabs)) - es->x_offset;
3131 x = w - x;
3132 }
3133 else if (es->style & ES_CENTER)
3134 {
3135 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3136 es->tabs_count, es->tabs)) - es->x_offset;
3137 x += (w - lw) / 2;
3138 }
3139 else /* ES_LEFT */
3140 {
3141 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3142 es->tabs_count, es->tabs)) - es->x_offset;
3143 }
3144 } else {
3145 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3146 if (index < es->x_offset) {
3147 GetTextExtentPoint32W(dc, text + index,
3148 es->x_offset - index, &size);
3149 x = -size.cx;
3150 } else {
3151 GetTextExtentPoint32W(dc, text + es->x_offset,
3152 index - es->x_offset, &size);
3153 x = size.cx;
3154
3155 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3156 {
3157 w = es->format_rect.right - es->format_rect.left;
3158 if (w > es->text_width)
3159 {
3160 if (es->style & ES_RIGHT)
3161 x += w - es->text_width;
3162 else if (es->style & ES_CENTER)
3163 x += (w - es->text_width) / 2;
3164 }
3165 }
3166 }
3167 y = 0;
3168 if (es->style & ES_PASSWORD)
3169 HeapFree(GetProcessHeap(), 0, text);
3170 }
3171 x += es->format_rect.left;
3172 y += es->format_rect.top;
3173 if (es->font)
3174 SelectObject(dc, old_font);
3175 ReleaseDC(es->hwndSelf, dc);
3176 return MAKELONG((INT16)x, (INT16)y);
3177 }
3178
3179
3180 /*********************************************************************
3181 *
3182 * EM_REPLACESEL
3183 *
3184 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3185 *
3186 */
3187 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3188 {
3189 UINT strl = strlenW(lpsz_replace);
3190 UINT tl = get_text_length(es);
3191 UINT utl;
3192 UINT s;
3193 UINT e;
3194 UINT i;
3195 UINT size;
3196 LPWSTR p;
3197 HRGN hrgn = 0;
3198 LPWSTR buf = NULL;
3199 UINT bufl = 0;
3200
3201 TRACE("%s, can_undo %d, send_update %d\n",
3202 debugstr_w(lpsz_replace), can_undo, send_update);
3203
3204 s = es->selection_start;
3205 e = es->selection_end;
3206
3207 if ((s == e) && !strl)
3208 return;
3209
3210 ORDER_UINT(s, e);
3211
3212 size = tl - (e - s) + strl;
3213 if (!size)
3214 es->text_width = 0;
3215
3216 /* Issue the EN_MAXTEXT notification and continue with replacing text
3217 * such that buffer limit is honored. */
3218 if ((honor_limit) && (size > es->buffer_limit)) {
3219 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3220 /* Buffer limit can be smaller than the actual length of text in combobox */
3221 if (es->buffer_limit < (tl - (e-s)))
3222 strl = 0;
3223 else
3224 strl = es->buffer_limit - (tl - (e-s));
3225 }
3226
3227 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3228 return;
3229
3230 if (e != s) {
3231 /* there is something to be deleted */
3232 TRACE("deleting stuff.\n");
3233 bufl = e - s;
3234 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3235 if (!buf) return;
3236 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3237 buf[bufl] = 0; /* ensure 0 termination */
3238 /* now delete */
3239 strcpyW(es->text + s, es->text + e);
3240 text_buffer_changed(es);
3241 }
3242 if (strl) {
3243 /* there is an insertion */
3244 tl = get_text_length(es);
3245 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));
3246 for (p = es->text + tl ; p >= es->text + s ; p--)
3247 p[strl] = p[0];
3248 for (i = 0 , p = es->text + s ; i < strl ; i++)
3249 p[i] = lpsz_replace[i];
3250 if(es->style & ES_UPPERCASE)
3251 CharUpperBuffW(p, strl);
3252 else if(es->style & ES_LOWERCASE)
3253 CharLowerBuffW(p, strl);
3254 text_buffer_changed(es);
3255 }
3256 if (es->style & ES_MULTILINE)
3257 {
3258 INT st = min(es->selection_start, es->selection_end);
3259 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3260
3261 hrgn = CreateRectRgn(0, 0, 0, 0);
3262 EDIT_BuildLineDefs_ML(es, st, st + strl,
3263 strl - abs(es->selection_end - es->selection_start), hrgn);
3264 /* if text is too long undo all changes */
3265 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3266 if (strl)
3267 strcpyW(es->text + e, es->text + e + strl);
3268 if (e != s)
3269 for (i = 0 , p = es->text ; i < e - s ; i++)
3270 p[i + s] = buf[i];
3271 text_buffer_changed(es);
3272 EDIT_BuildLineDefs_ML(es, s, e,
3273 abs(es->selection_end - es->selection_start) - strl, hrgn);
3274 strl = 0;
3275 e = s;
3276 hrgn = CreateRectRgn(0, 0, 0, 0);
3277 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3278 }
3279 }
3280 else {
3281 INT fw = es->format_rect.right - es->format_rect.left;
3282 EDIT_CalcLineWidth_SL(es);
3283 /* remove chars that don't fit */
3284 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3285 while ((es->text_width > fw) && s + strl >= s) {
3286 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3287 strl--;
3288 EDIT_CalcLineWidth_SL(es);
3289 }
3290 text_buffer_changed(es);
3291 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3292 }
3293 }
3294
3295 if (e != s) {
3296 if (can_undo) {
3297 utl = strlenW(es->undo_text);
3298 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3299 /* undo-buffer is extended to the right */
3300 EDIT_MakeUndoFit(es, utl + e - s);
3301 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3302 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3303 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3304 /* undo-buffer is extended to the left */
3305 EDIT_MakeUndoFit(es, utl + e - s);
3306 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3307 p[e - s] = p[0];
3308 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3309 p[i] = buf[i];
3310 es->undo_position = s;
3311 } else {
3312 /* new undo-buffer */
3313 EDIT_MakeUndoFit(es, e - s);
3314 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3315 es->undo_text[e - s] = 0; /* ensure 0 termination */
3316 es->undo_position = s;
3317 }
3318 /* any deletion makes the old insertion-undo invalid */
3319 es->undo_insert_count = 0;
3320 } else
3321 EDIT_EM_EmptyUndoBuffer(es);
3322 }
3323 if (strl) {
3324 if (can_undo) {
3325 if ((s == es->undo_position) ||
3326 ((es->undo_insert_count) &&
3327 (s == es->undo_position + es->undo_insert_count)))
3328 /*
3329 * insertion is new and at delete position or
3330 * an extension to either left or right
3331 */
3332 es->undo_insert_count += strl;
3333 else {
3334 /* new insertion undo */
3335 es->undo_position = s;
3336 es->undo_insert_count = strl;
3337 /* new insertion makes old delete-buffer invalid */
3338 *es->undo_text = '\0';
3339 }
3340 } else
3341 EDIT_EM_EmptyUndoBuffer(es);
3342 }
3343
3344 if (bufl)
3345 HeapFree(GetProcessHeap(), 0, buf);
3346
3347 s += strl;
3348
3349 /* If text has been deleted and we're right or center aligned then scroll rightward */
3350 if (es->style & (ES_RIGHT | ES_CENTER))
3351 {
3352 INT delta = strl - abs(es->selection_end - es->selection_start);
3353
3354 if (delta < 0 && es->x_offset)
3355 {
3356 if (abs(delta) > es->x_offset)
3357 es->x_offset = 0;
3358 else
3359 es->x_offset += delta;
3360 }
3361 }
3362
3363 EDIT_EM_SetSel(es, s, s, FALSE);
3364 es->flags |= EF_MODIFIED;
3365 if (send_update) es->flags |= EF_UPDATE;
3366 if (hrgn)
3367 {
3368 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3369 DeleteObject(hrgn);
3370 }
3371 else
3372 EDIT_UpdateText(es, NULL, TRUE);
3373
3374 EDIT_EM_ScrollCaret(es);
3375
3376 /* force scroll info update */
3377 EDIT_UpdateScrollInfo(es);
3378
3379
3380 if(send_update || (es->flags & EF_UPDATE))
3381 {
3382 es->flags &= ~EF_UPDATE;
3383 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3384 }
3385 }
3386
3387
3388 /*********************************************************************
3389 *
3390 * EM_SCROLL
3391 *
3392 */
3393 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3394 {
3395 INT dy;
3396
3397 if (!(es->style & ES_MULTILINE))
3398 return (LRESULT)FALSE;
3399
3400 dy = 0;
3401
3402 switch (action) {
3403 case SB_LINEUP:
3404 if (es->y_offset)
3405 dy = -1;
3406 break;
3407 case SB_LINEDOWN:
3408 if (es->y_offset < es->line_count - 1)
3409 dy = 1;
3410 break;
3411 case SB_PAGEUP:
3412 if (es->y_offset)
3413 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3414 break;
3415 case SB_PAGEDOWN:
3416 if (es->y_offset < es->line_count - 1)
3417 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3418 break;
3419 default:
3420 return (LRESULT)FALSE;
3421 }
3422 if (dy) {
3423 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3424 /* check if we are going to move too far */
3425 if(es->y_offset + dy > es->line_count - vlc)
3426 dy = es->line_count - vlc - es->y_offset;
3427
3428 /* Notification is done in EDIT_EM_LineScroll */
3429 if(dy)
3430 EDIT_EM_LineScroll(es, 0, dy);
3431 }
3432 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3433 }
3434
3435
3436 /*********************************************************************
3437 *
3438 * EM_SCROLLCARET
3439 *
3440 */
3441 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3442 {
3443 if (es->style & ES_MULTILINE) {
3444 INT l;
3445 INT vlc;
3446 INT ww;
3447 INT cw = es->char_width;
3448 INT x;
3449 INT dy = 0;
3450 INT dx = 0;
3451
3452 l = EDIT_EM_LineFromChar(es, es->selection_end);
3453 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3454 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3455 if (l >= es->y_offset + vlc)
3456 dy = l - vlc + 1 - es->y_offset;
3457 if (l < es->y_offset)
3458 dy = l - es->y_offset;
3459 ww = es->format_rect.right - es->format_rect.left;
3460 if (x < es->format_rect.left)
3461 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3462 if (x > es->format_rect.right)
3463 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3464 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3465 {
3466 /* check if we are going to move too far */
3467 if(es->x_offset + dx + ww > es->text_width)
3468 dx = es->text_width - ww - es->x_offset;
3469 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3470 EDIT_EM_LineScroll_internal(es, dx, dy);
3471 }
3472 } else {
3473 INT x;
3474 INT goal;
3475 INT format_width;
3476
3477 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3478 format_width = es->format_rect.right - es->format_rect.left;
3479 if (x < es->format_rect.left) {
3480 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3481 do {
3482 es->x_offset--;
3483 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3484 } while ((x < goal) && es->x_offset);
3485 /* FIXME: use ScrollWindow() somehow to improve performance */
3486 EDIT_UpdateText(es, NULL, TRUE);
3487 } else if (x > es->format_rect.right) {
3488 INT x_last;
3489 INT len = get_text_length(es);
3490 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3491 do {
3492 es->x_offset++;
3493 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3494 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3495 } while ((x > goal) && (x_last > es->format_rect.right));
3496 /* FIXME: use ScrollWindow() somehow to improve performance */
3497 EDIT_UpdateText(es, NULL, TRUE);
3498 }
3499 }
3500
3501 if(es->flags & EF_FOCUSED)
3502 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3503 }
3504
3505
3506 /*********************************************************************
3507 *
3508 * EM_SETHANDLE
3509 *
3510 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3511 *
3512 */
3513 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3514 {
3515 if (!(es->style & ES_MULTILINE))
3516 return;
3517
3518 if (!hloc) {
3519 WARN("called with NULL handle\n");
3520 return;
3521 }
3522
3523 EDIT_UnlockBuffer(es, TRUE);
3524
3525 if(es->hloc16)
3526 {
3527 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3528 HANDLE16 oldDS = stack16->ds;
3529
3530 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3531 LocalFree16(es->hloc16);
3532 stack16->ds = oldDS;
3533 es->hloc16 = 0;
3534 }
3535
3536 if(es->is_unicode)
3537 {
3538 if(es->hloc32A)
3539 {
3540 LocalFree(es->hloc32A);
3541 es->hloc32A = NULL;
3542 }
3543 es->hloc32W = hloc;
3544 }
3545 else
3546 {
3547 INT countW, countA;
3548 HLOCAL hloc32W_new;
3549 WCHAR *textW;
3550 CHAR *textA;
3551
3552 countA = LocalSize(hloc);
3553 textA = LocalLock(hloc);
3554 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3555 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3556 {
3557 ERR("Could not allocate new unicode buffer\n");
3558 return;
3559 }
3560 textW = LocalLock(hloc32W_new);
3561 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3562 LocalUnlock(hloc32W_new);
3563 LocalUnlock(hloc);
3564
3565 if(es->hloc32W)
3566 LocalFree(es->hloc32W);
3567
3568 es->hloc32W = hloc32W_new;
3569 es->hloc32A = hloc;
3570 }
3571
3572 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3573
3574 es->flags |= EF_APP_HAS_HANDLE;
3575 EDIT_LockBuffer(es);
3576
3577 es->x_offset = es->y_offset = 0;
3578 es->selection_start = es->selection_end = 0;
3579 EDIT_EM_EmptyUndoBuffer(es);
3580 es->flags &= ~EF_MODIFIED;
3581 es->flags &= ~EF_UPDATE;
3582 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3583 EDIT_UpdateText(es, NULL, TRUE);
3584 EDIT_EM_ScrollCaret(es);
3585 /* force scroll info update */
3586 EDIT_UpdateScrollInfo(es);
3587 }
3588
3589
3590 /*********************************************************************
3591 *
3592 * EM_SETHANDLE16
3593 *
3594 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3595 *
3596 */
3597 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3598 {
3599 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3600 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3601 HANDLE16 oldDS = stack16->ds;
3602 INT countW, countA;
3603 HLOCAL hloc32W_new;
3604 WCHAR *textW;
3605 CHAR *textA;
3606
3607 if (!(es->style & ES_MULTILINE))
3608 return;
3609
3610 if (!hloc) {
3611 WARN("called with NULL handle\n");
3612 return;
3613 }
3614
3615 EDIT_UnlockBuffer(es, TRUE);
3616
3617 if(es->hloc32A)
3618 {
3619 LocalFree(es->hloc32A);
3620 es->hloc32A = NULL;
3621 }
3622
3623 stack16->ds = hInstance;
3624 countA = LocalSize16(hloc);
3625 textA = MapSL(LocalLock16(hloc));
3626 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3627 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3628 {
3629 ERR("Could not allocate new unicode buffer\n");
3630 return;
3631 }
3632 textW = LocalLock(hloc32W_new);
3633 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3634 LocalUnlock(hloc32W_new);
3635 LocalUnlock16(hloc);
3636 stack16->ds = oldDS;
3637
3638 if(es->hloc32W)
3639 LocalFree(es->hloc32W);
3640
3641 es->hloc32W = hloc32W_new;
3642 es->hloc16 = hloc;
3643
3644 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3645
3646 es->flags |= EF_APP_HAS_HANDLE;
3647 EDIT_LockBuffer(es);
3648
3649 es->x_offset = es->y_offset = 0;
3650 es->selection_start = es->selection_end = 0;
3651 EDIT_EM_EmptyUndoBuffer(es);
3652 es->flags &= ~EF_MODIFIED;
3653 es->flags &= ~EF_UPDATE;
3654 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3655 EDIT_UpdateText(es, NULL, TRUE);
3656 EDIT_EM_ScrollCaret(es);
3657 /* force scroll info update */
3658 EDIT_UpdateScrollInfo(es);
3659 }
3660
3661
3662 /*********************************************************************
3663 *
3664 * EM_SETLIMITTEXT
3665 *
3666 * NOTE: this version currently implements WinNT limits
3667 *
3668 */
3669 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
3670 {
3671 if (!limit) limit = ~0u;
3672 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
3673 es->buffer_limit = limit;
3674 }
3675
3676
3677 /*********************************************************************
3678 *
3679 * EM_SETMARGINS
3680 *
3681 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3682 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3683 * margin according to the textmetrics of the current font.
3684 *
3685 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3686 * of the char's width as the margin, but this is not how Windows handles this.
3687 * For all other fonts Windows sets the margins to zero.
3688 *
3689 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3690 * edit control is equal to or larger than a certain size.
3691 * Interestingly if one subtracts both the left and right margins from
3692 * this size one always seems to get an even number. The extents of
3693 * the (four character) string "'**'" match this quite closely, so
3694 * we'll use this until we come up with a better idea.
3695 */
3696 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3697 {
3698 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3699 SIZE sz;
3700
3701 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3702 return sz.cx + left + right;
3703 }
3704
3705 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3706 WORD left, WORD right, BOOL repaint)
3707 {
3708 TEXTMETRICW tm;
3709 INT default_left_margin = 0; /* in pixels */
3710 INT default_right_margin = 0; /* in pixels */
3711
3712 /* Set the default margins depending on the font */
3713 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3714 HDC dc = GetDC(es->hwndSelf);
3715 HFONT old_font = SelectObject(dc, es->font);
3716 GetTextMetricsW(dc, &tm);
3717 /* The default margins are only non zero for TrueType or Vector fonts */
3718 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3719 int min_size;
3720 RECT rc;
3721 /* This must be calculated more exactly! But how? */
3722 default_left_margin = tm.tmAveCharWidth / 2;
3723 default_right_margin = tm.tmAveCharWidth / 2;
3724 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3725 GetClientRect(es->hwndSelf, &rc);
3726 if(rc.right - rc.left < min_size) {
3727 default_left_margin = es->left_margin;
3728 default_right_margin = es->right_margin;
3729 }
3730 }
3731 SelectObject(dc, old_font);
3732 ReleaseDC(es->hwndSelf, dc);
3733 }
3734
3735 if (action & EC_LEFTMARGIN) {
3736 es->format_rect.left -= es->left_margin;
3737 if (left != EC_USEFONTINFO)
3738 es->left_margin = left;
3739 else
3740 es->left_margin = default_left_margin;
3741 es->format_rect.left += es->left_margin;
3742 }
3743
3744 if (action & EC_RIGHTMARGIN) {
3745 es->format_rect.right += es->right_margin;
3746 if (right != EC_USEFONTINFO)
3747 es->right_margin = right;
3748 else
3749 es->right_margin = default_right_margin;
3750 es->format_rect.right -= es->right_margin;
3751 }
3752
3753 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3754 EDIT_AdjustFormatRect(es);
3755 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3756 }
3757
3758 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3759 }
3760
3761
3762 /*********************************************************************
3763 *
3764 * EM_SETPASSWORDCHAR
3765 *
3766 */
3767 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3768 {
3769 LONG style;
3770
3771 if (es->style & ES_MULTILINE)
3772 return;
3773
3774 if (es->password_char == c)
3775 return;
3776
3777 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3778 es->password_char = c;
3779 if (c) {
3780 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3781 es->style |= ES_PASSWORD;
3782 } else {
3783 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3784 es->style &= ~ES_PASSWORD;
3785 }
3786 EDIT_UpdateText(es, NULL, TRUE);
3787 }
3788
3789
3790 /*********************************************************************
3791 *
3792 * EDIT_EM_SetSel
3793 *
3794 * note: unlike the specs say: the order of start and end
3795 * _is_ preserved in Windows. (i.e. start can be > end)
3796 * In other words: this handler is OK
3797 *
3798 */
3799 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3800 {
3801 UINT old_start = es->selection_start;
3802 UINT old_end = es->selection_end;
3803 UINT len = get_text_length(es);
3804
3805 if (start == (UINT)-1) {
3806 start = es->selection_end;
3807 end = es->selection_end;
3808 } else {
3809 start = min(start, len);
3810 end = min(end, len);
3811 }
3812 es->selection_start = start;
3813 es->selection_end = end;
3814 if (after_wrap)
3815 es->flags |= EF_AFTER_WRAP;
3816 else
3817 es->flags &= ~EF_AFTER_WRAP;
3818 /* Compute the necessary invalidation region. */
3819 /* Note that we don't need to invalidate regions which have
3820 * "never" been selected, or those which are "still" selected.
3821 * In fact, every time we hit a selection boundary, we can
3822 * *toggle* whether we need to invalidate. Thus we can optimize by
3823 * *sorting* the interval endpoints. Let's assume that we sort them
3824 * in this order:
3825 * start <= end <= old_start <= old_end
3826 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
3827 * in 5 comparisons; i.e. it is impossible to do better than the
3828 * following: */
3829 ORDER_UINT(end, old_end);
3830 ORDER_UINT(start, old_start);
3831 ORDER_UINT(old_start, old_end);
3832 ORDER_UINT(start, end);
3833 /* Note that at this point 'end' and 'old_start' are not in order, but
3834 * start is definitely the min. and old_end is definitely the max. */
3835 if (end != old_start)
3836 {
3837 /*
3838 * One can also do
3839 * ORDER_UINT32(end, old_start);
3840 * EDIT_InvalidateText(es, start, end);
3841 * EDIT_InvalidateText(es, old_start, old_end);
3842 * in place of the following if statement.
3843 * (That would complete the optimal five-comparison four-element sort.)
3844 */
3845 if (old_start > end )
3846 {
3847 EDIT_InvalidateText(es, start, end);
3848 EDIT_InvalidateText(es, old_start, old_end);
3849 }
3850 else
3851 {
3852 EDIT_InvalidateText(es, start, old_start);
3853 EDIT_InvalidateText(es, end, old_end);
3854 }
3855 }
3856 else EDIT_InvalidateText(es, start, old_end);
3857 }
3858
3859
3860 /*********************************************************************
3861 *
3862 * EM_SETTABSTOPS
3863 *
3864 */
3865 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3866 {
3867 if (!(es->style & ES_MULTILINE))
3868 return FALSE;
3869 HeapFree(GetProcessHeap(), 0, es->tabs);
3870 es->tabs_count = count;
3871 if (!count)
3872 es->tabs = NULL;
3873 else {
3874 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3875 memcpy(es->tabs, tabs, count * sizeof(INT));
3876 }
3877 return TRUE;
3878 }
3879
3880
3881 /*********************************************************************
3882 *
3883 * EM_SETTABSTOPS16
3884 *
3885 */
3886 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs)
3887 {
3888 if (!(es->style & ES_MULTILINE))
3889 return FALSE;
3890 HeapFree(GetProcessHeap(), 0, es->tabs);
3891 es->tabs_count = count;
3892 if (!count)
3893 es->tabs = NULL;
3894 else {
3895 INT i;
3896 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3897 for (i = 0 ; i < count ; i++)
3898 es->tabs[i] = *tabs++;
3899 }
3900 return TRUE;
3901 }
3902
3903
3904 /*********************************************************************
3905 *
3906 * EM_SETWORDBREAKPROC
3907 *
3908 */
3909 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3910 {
3911 if (es->word_break_proc == wbp)
3912 return;
3913
3914 es->word_break_proc = wbp;
3915 es->word_break_proc16 = NULL;
3916
3917 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3918 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3919 EDIT_UpdateText(es, NULL, TRUE);
3920 }
3921 }
3922
3923
3924 /*********************************************************************
3925 *
3926 * EM_SETWORDBREAKPROC16
3927 *
3928 */
3929 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3930 {
3931 if (es->word_break_proc16 == wbp)
3932 return;
3933
3934 es->word_break_proc = NULL;
3935 es->word_break_proc16 = wbp;
3936 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3937 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3938 EDIT_UpdateText(es, NULL, TRUE);
3939 }
3940 }
3941
3942
3943 /*********************************************************************
3944 *
3945 * EM_UNDO / WM_UNDO
3946 *
3947 */
3948 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3949 {
3950 INT ulength;
3951 LPWSTR utext;
3952
3953 /* As per MSDN spec, for a single-line edit control,
3954 the return value is always TRUE */
3955 if( es->style & ES_READONLY )
3956 return !(es->style & ES_MULTILINE);
3957
3958 ulength = strlenW(es->undo_text);
3959
3960 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3961
3962 strcpyW(utext, es->undo_text);
3963
3964 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3965 es->undo_insert_count, debugstr_w(utext));
3966
3967 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3968 EDIT_EM_EmptyUndoBuffer(es);
3969 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3970 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3971 /* send the notification after the selection start and end are set */
3972 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3973 EDIT_EM_ScrollCaret(es);
3974 HeapFree(GetProcessHeap(), 0, utext);
3975
3976 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3977 es->undo_insert_count, debugstr_w(es->undo_text));
3978 return TRUE;
3979 }
3980
3981
3982 /* Helper function for WM_CHAR
3983 *
3984 * According to an MSDN blog article titled "Just because you're a control
3985 * doesn't mean that you're necessarily inside a dialog box," multiline edit
3986 * controls without ES_WANTRETURN would attempt to detect whether it is inside
3987 * a dialog box or not.
3988 */
3989 static BOOL EDIT_IsInsideDialog(EDITSTATE *es)
3990 {
3991 WND *pParent;
3992 BOOL r = FALSE;
3993
3994 if (es->hwndParent)
3995 {
3996 pParent = WIN_GetPtr(es->hwndParent);
3997 if (pParent && pParent != WND_OTHER_PROCESS && pParent != WND_DESKTOP)
3998 {
3999 if (pParent->flags & WIN_ISDIALOG)
4000 r = TRUE;
4001 WIN_ReleasePtr(pParent);
4002 }
4003 }
4004 return r;
4005 }
4006
4007
4008 /*********************************************************************
4009 *
4010 * WM_CHAR
4011 *
4012 */
4013 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
4014 {
4015 BOOL control;
4016
4017 control = GetKeyState(VK_CONTROL) & 0x8000;
4018
4019 switch (c) {
4020 case '\r':
4021 /* If it's not a multiline edit box, it would be ignored below.
4022 * For multiline edit without ES_WANTRETURN, we have to make a
4023 * special case.
4024 */
4025 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
4026 if (EDIT_IsInsideDialog(es))
4027 break;
4028 case '\n':
4029 if (es->style & ES_MULTILINE) {
4030 if (es->style & ES_READONLY) {
4031 EDIT_MoveHome(es, FALSE, FALSE);
4032 EDIT_MoveDown_ML(es, FALSE);
4033 } else {
4034 static const WCHAR cr_lfW[] = {'\r','\n',0};
4035 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
4036 }
4037 }
4038 break;
4039 case '\t':
4040 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
4041 {
4042 static const WCHAR tabW[] = {'\t',0};
4043 if (EDIT_IsInsideDialog(es))
4044 break;
4045 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
4046 }
4047 break;
4048 case VK_BACK:
4049 if (!(es->style & ES_READONLY) && !control) {
4050 if (es->selection_start != es->selection_end)
4051 EDIT_WM_Clear(es);
4052 else {
4053 /* delete character left of caret */
4054 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4055 EDIT_MoveBackward(es, TRUE);
4056 EDIT_WM_Clear(es);
4057 }
4058 }
4059 break;
4060 case 0x03: /* ^C */
4061 if (!(es->style & ES_PASSWORD))
4062 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4063 break;
4064 case 0x16: /* ^V */
4065 if (!(es->style & ES_READONLY))
4066 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4067 break;
4068 case 0x18: /* ^X */
4069 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
4070 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4071 break;
4072 case 0x1A: /* ^Z */
4073 if (!(es->style & ES_READONLY))
4074 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4075 break;
4076
4077 default:
4078 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4079 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4080 break;
4081
4082 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4083 WCHAR str[2];
4084 str[0] = c;
4085 str[1] = '\0';
4086 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4087 }
4088 break;
4089 }
4090 return 1;
4091 }
4092
4093
4094 /*********************************************************************
4095 *
4096 * WM_COMMAND
4097 *
4098 */
4099 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4100 {
4101 if (code || control)
4102 return;
4103
4104 switch (id) {
4105 case EM_UNDO:
4106 EDIT_EM_Undo(es);
4107 break;
4108 case WM_CUT:
4109 EDIT_WM_Cut(es);
4110 break;
4111 case WM_COPY:
4112 EDIT_WM_Copy(es);
4113 break;
4114 case WM_PASTE:
4115 EDIT_WM_Paste(es);
4116 break;
4117 case WM_CLEAR:
4118 EDIT_WM_Clear(es);
4119 break;
4120 case EM_SETSEL:
4121 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4122 EDIT_EM_ScrollCaret(es);
4123 break;
4124 default:
4125 ERR("unknown menu item, please report\n");
4126 break;
4127 }
4128 }
4129
4130
4131 /*********************************************************************
4132 *
4133 * WM_CONTEXTMENU
4134 *
4135 * Note: the resource files resource/sysres_??.rc cannot define a
4136 * single popup menu. Hence we use a (dummy) menubar
4137 * containing the single popup menu as its first item.
4138 *
4139 * FIXME: the message identifiers have been chosen arbitrarily,
4140 * hence we use MF_BYPOSITION.
4141 * We might as well use the "real" values (anybody knows ?)
4142 * The menu definition is in resources/sysres_??.rc.
4143 * Once these are OK, we better use MF_BYCOMMAND here
4144 * (as we do in EDIT_WM_Command()).
4145 *
4146 */
4147 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4148 {
4149 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4150 HMENU popup = GetSubMenu(menu, 0);
4151 UINT start = es->selection_start;
4152 UINT end = es->selection_end;
4153
4154 ORDER_UINT(start, end);
4155
4156 /* undo */
4157 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4158 /* cut */
4159 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4160 /* copy */
4161 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4162 /* paste */
4163 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4164 /* delete */
4165 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4166 /* select all */
4167 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
4168
4169 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
4170 {
4171 RECT rc;
4172 /* Windows places the menu at the edit's center in this case */
4173 GetClientRect(es->hwndSelf, &rc);
4174 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
4175 x = rc.left + (rc.right - rc.left) / 2;
4176 y = rc.top + (rc.bottom - rc.top) / 2;
4177 }
4178
4179 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4180 DestroyMenu(menu);
4181 }
4182
4183
4184 /*********************************************************************
4185 *
4186 * WM_COPY
4187 *
4188 */
4189 static void EDIT_WM_Copy(EDITSTATE *es)
4190 {
4191 INT s = min(es->selection_start, es->selection_end);
4192 INT e = max(es->selection_start, es->selection_end);
4193 HGLOBAL hdst;
4194 LPWSTR dst;
4195 DWORD len;
4196
4197 if (e == s) return;
4198
4199 len = e - s;
4200 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4201 dst = GlobalLock(hdst);
4202 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4203 dst[len] = 0; /* ensure 0 termination */
4204 TRACE("%s\n", debugstr_w(dst));
4205 GlobalUnlock(hdst);
4206 OpenClipboard(es->hwndSelf);
4207 EmptyClipboard();
4208 SetClipboardData(CF_UNICODETEXT, hdst);
4209 CloseClipboard();
4210 }
4211
4212
4213 /*********************************************************************
4214 *
4215 * WM_CREATE
4216 *
4217 */
4218 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4219 {
4220 RECT clientRect;
4221
4222 TRACE("%s\n", debugstr_w(name));
4223 /*
4224 * To initialize some final structure members, we call some helper
4225 * functions. However, since the EDITSTATE is not consistent (i.e.
4226 * not fully initialized), we should be very careful which
4227 * functions can be called, and in what order.
4228 */
4229 EDIT_WM_SetFont(es, 0, FALSE);
4230 EDIT_EM_EmptyUndoBuffer(es);
4231
4232 /* We need to calculate the format rect
4233 (applications may send EM_SETMARGINS before the control gets visible) */
4234 GetClientRect(es->hwndSelf, &clientRect);
4235 EDIT_SetRectNP(es, &clientRect);
4236
4237 if (name && *name) {
4238 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4239 /* if we insert text to the editline, the text scrolls out
4240 * of the window, as the caret is placed after the insert
4241 * pos normally; thus we reset es->selection... to 0 and
4242 * update caret
4243 */
4244 es->selection_start = es->selection_end = 0;
4245 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4246 * Messages are only to be sent when the USER does something to
4247 * change the contents. So I am removing this EN_CHANGE
4248 *
4249 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4250 */
4251 EDIT_EM_ScrollCaret(es);
4252 }
4253 /* force scroll info update */
4254 EDIT_UpdateScrollInfo(es);
4255 /* The rule seems to return 1 here for success */
4256 /* Power Builder masked edit controls will crash */
4257 /* if not. */
4258 /* FIXME: is that in all cases so ? */
4259 return 1;
4260 }
4261
4262
4263 /*********************************************************************
4264 *
4265 * WM_DESTROY
4266 *
4267 */
4268 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4269 {
4270 LINEDEF *pc, *pp;
4271
4272 if (es->hloc32W) {
4273 LocalFree(es->hloc32W);
4274 }
4275 if (es->hloc32A) {
4276 LocalFree(es->hloc32A);
4277 }
4278 if (es->hloc16) {
4279 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
4280 HANDLE16 oldDS = stack16->ds;
4281
4282 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4283 while (LocalUnlock16(es->hloc16)) ;
4284 LocalFree16(es->hloc16);
4285 stack16->ds = oldDS;
4286 }
4287
4288 pc = es->first_line_def;
4289 while (pc)
4290 {
4291 pp = pc->next;
4292 HeapFree(GetProcessHeap(), 0, pc);
4293 pc = pp;
4294 }
4295
4296 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4297 HeapFree(GetProcessHeap(), 0, es);
4298
4299 return 0;
4300 }
4301
4302
4303 /*********************************************************************
4304 *
4305 * WM_GETTEXT
4306 *
4307 */
4308 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4309 {
4310 if(!count) return 0;
4311
4312 if(unicode)
4313 {
4314 lstrcpynW(dst, es->text, count);
4315 return strlenW(dst);
4316 }
4317 else
4318 {
4319 LPSTR textA = (LPSTR)dst;
4320 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4321 textA[count - 1] = 0; /* ensure 0 termination */
4322 return strlen(textA);
4323 }
4324 }
4325
4326 /*********************************************************************
4327 *
4328 * WM_HSCROLL
4329 *
4330 */
4331 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4332 {
4333 INT dx;
4334 INT fw;
4335
4336 if (!(es->style & ES_MULTILINE))
4337 return 0;
4338
4339 if (!(es->style & ES_AUTOHSCROLL))
4340 return 0;
4341
4342 dx = 0;
4343 fw = es->format_rect.right - es->format_rect.left;
4344 switch (action) {
4345 case SB_LINELEFT:
4346 TRACE("SB_LINELEFT\n");
4347 if (es->x_offset)
4348 dx = -es->char_width;
4349 break;
4350 case SB_LINERIGHT:
4351 TRACE("SB_LINERIGHT\n");
4352 if (es->x_offset < es->text_width)
4353 dx = es->char_width;
4354 break;
4355 case SB_PAGELEFT:
4356 TRACE("SB_PAGELEFT\n");
4357 if (es->x_offset)
4358 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4359 break;
4360 case SB_PAGERIGHT:
4361 TRACE("SB_PAGERIGHT\n");
4362 if (es->x_offset < es->text_width)
4363 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4364 break;
4365 case SB_LEFT:
4366 TRACE("SB_LEFT\n");
4367 if (es->x_offset)
4368 dx = -es->x_offset;
4369 break;
4370 case SB_RIGHT:
4371 TRACE("SB_RIGHT\n");
4372 if (es->x_offset < es->text_width)
4373 dx = es->text_width - es->x_offset;
4374 break;
4375 case SB_THUMBTRACK:
4376 TRACE("SB_THUMBTRACK %d\n", pos);
4377 es->flags |= EF_HSCROLL_TRACK;
4378 if(es->style & WS_HSCROLL)
4379 dx = pos - es->x_offset;
4380 else
4381 {
4382 INT fw, new_x;
4383 /* Sanity check */
4384 if(pos < 0 || pos > 100) return 0;
4385 /* Assume default scroll range 0-100 */
4386 fw = es->format_rect.right - es->format_rect.left;
4387 new_x = pos * (es->text_width - fw) / 100;
4388 dx = es->text_width ? (new_x - es->x_offset) : 0;
4389 }
4390 break;
4391 case SB_THUMBPOSITION:
4392 TRACE("SB_THUMBPOSITION %d\n", pos);
4393 es->flags &= ~EF_HSCROLL_TRACK;
4394 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4395 dx = pos - es->x_offset;
4396 else
4397 {
4398 INT fw, new_x;
4399 /* Sanity check */
4400 if(pos < 0 || pos > 100) return 0;
4401 /* Assume default scroll range 0-100 */
4402 fw = es->format_rect.right - es->format_rect.left;
4403 new_x = pos * (es->text_width - fw) / 100;
4404 dx = es->text_width ? (new_x - es->x_offset) : 0;
4405 }
4406 if (!dx) {
4407 /* force scroll info update */
4408 EDIT_UpdateScrollInfo(es);
4409 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4410 }
4411 break;
4412 case SB_ENDSCROLL:
4413 TRACE("SB_ENDSCROLL\n");
4414 break;
4415 /*
4416 * FIXME : the next two are undocumented !
4417 * Are we doing the right thing ?
4418 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4419 * although it's also a regular control message.
4420 */
4421 case EM_GETTHUMB: /* this one is used by NT notepad */
4422 case EM_GETTHUMB16:
4423 {
4424 LRESULT ret;
4425 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4426 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4427 else
4428 {
4429 /* Assume default scroll range 0-100 */
4430 INT fw = es->format_rect.right - es->format_rect.left;
4431 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4432 }
4433 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4434 return ret;
4435 }
4436 case EM_LINESCROLL16:
4437 TRACE("EM_LINESCROLL16\n");
4438 dx = pos;
4439 break;
4440
4441 default:
4442 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4443 action, action);
4444 return 0;
4445 }
4446 if (dx)
4447 {
4448 INT fw = es->format_rect.right - es->format_rect.left;
4449 /* check if we are going to move too far */
4450 if(es->x_offset + dx + fw > es->text_width)
4451 dx = es->text_width - fw - es->x_offset;
4452 if(dx)
4453 EDIT_EM_LineScroll_internal(es, dx, 0);
4454 }
4455 return 0;
4456 }
4457
4458
4459 /*********************************************************************
4460 *
4461 * EDIT_CheckCombo
4462 *
4463 */
4464 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4465 {
4466 HWND hLBox = es->hwndListBox;
4467 HWND hCombo;
4468 BOOL bDropped;
4469 int nEUI;
4470
4471 if (!hLBox)
4472 return FALSE;
4473
4474 hCombo = GetParent(es->hwndSelf);
4475 bDropped = TRUE;
4476 nEUI = 0;
4477
4478 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4479
4480 if (key == VK_UP || key == VK_DOWN)
4481 {
4482 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4483 nEUI = 1;
4484
4485 if (msg == WM_KEYDOWN || nEUI)
4486 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4487 }
4488
4489 switch (msg)
4490 {
4491 case WM_KEYDOWN:
4492 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4493 {
4494 /* make sure ComboLBox pops up */
4495 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4496 key = VK_F4;
4497 nEUI = 2;
4498 }
4499
4500 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4501 break;
4502
4503 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4504 if (nEUI)
4505 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4506 else
4507 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4508 break;
4509 }
4510
4511 if(nEUI == 2)
4512 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4513
4514 return TRUE;
4515 }
4516
4517
4518 /*********************************************************************
4519 *
4520 * WM_KEYDOWN
4521 *
4522 * Handling of special keys that don't produce a WM_CHAR
4523 * (i.e. non-printable keys) & Backspace & Delete
4524 *
4525 */
4526 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4527 {
4528 BOOL shift;
4529 BOOL control;
4530
4531 if (GetKeyState(VK_MENU) & 0x8000)
4532 return 0;
4533
4534 shift = GetKeyState(VK_SHIFT) & 0x8000;
4535 control = GetKeyState(VK_CONTROL) & 0x8000;
4536
4537 switch (key) {
4538 case VK_F4:
4539 case VK_UP:
4540 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4541 break;
4542
4543 /* fall through */
4544 case VK_LEFT:
4545 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4546 EDIT_MoveUp_ML(es, shift);
4547 else
4548 if (control)
4549 EDIT_MoveWordBackward(es, shift);
4550 else
4551 EDIT_MoveBackward(es, shift);
4552 break;
4553 case VK_DOWN:
4554 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4555 break;
4556 /* fall through */
4557 case VK_RIGHT:
4558 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4559 EDIT_MoveDown_ML(es, shift);
4560 else if (control)
4561 EDIT_MoveWordForward(es, shift);
4562 else
4563 EDIT_MoveForward(es, shift);
4564 break;
4565 case VK_HOME:
4566 EDIT_MoveHome(es, shift, control);
4567 break;
4568 case VK_END:
4569 EDIT_MoveEnd(es, shift, control);
4570 break;
4571 case VK_PRIOR:
4572 if (es->style & ES_MULTILINE)
4573 EDIT_MovePageUp_ML(es, shift);
4574 else
4575 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4576 break;
4577 case VK_NEXT:
4578 if (es->style & ES_MULTILINE)
4579 EDIT_MovePageDown_ML(es, shift);
4580 else
4581 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4582 break;
4583 case VK_DELETE:
4584 if (!(es->style & ES_READONLY) && !(shift && control)) {
4585 if (es->selection_start != es->selection_end) {
4586 if (shift)
4587 EDIT_WM_Cut(es);
4588 else
4589 EDIT_WM_Clear(es);
4590 } else {
4591 if (shift) {
4592 /* delete character left of caret */
4593 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4594 EDIT_MoveBackward(es, TRUE);
4595 EDIT_WM_Clear(es);
4596 } else if (control) {
4597 /* delete to end of line */
4598 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4599 EDIT_MoveEnd(es, TRUE, FALSE);
4600 EDIT_WM_Clear(es);
4601 } else {
4602 /* delete character right of caret */
4603 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4604 EDIT_MoveForward(es, TRUE);
4605 EDIT_WM_Clear(es);
4606 }
4607 }
4608 }
4609 break;
4610 case VK_INSERT:
4611 if (shift) {
4612 if (!(es->style & ES_READONLY))
4613 EDIT_WM_Paste(es);
4614 } else if (control)
4615 EDIT_WM_Copy(es);
4616 break;
4617 case VK_RETURN:
4618 /* If the edit doesn't want the return send a message to the default object */
4619 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
4620 {
4621 HWND hwndParent;
4622 DWORD dw;
4623
4624 if (!EDIT_IsInsideDialog(es)) return 1;
4625 if (control) break;
4626 hwndParent = GetParent(es->hwndSelf);
4627 dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4628 if (HIWORD(dw) == DC_HASDEFID)
4629 {
4630 SendMessageW( hwndParent, WM_COMMAND,
4631 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4632 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4633 }
4634 else
4635 SendMessageW( hwndParent, WM_COMMAND, IDOK, (LPARAM)GetDlgItem( hwndParent, IDOK ) );
4636 }
4637 break;
4638 case VK_ESCAPE:
4639 if (!(es->style & ES_MULTILINE))
4640 SendMessageW(GetParent(es->hwndSelf), WM_COMMAND, IDCANCEL, (LPARAM)GetDlgItem( GetParent(es->hwndSelf), IDCANCEL ) );
4641 break;
4642 case VK_TAB:
4643 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
4644 break;
4645 }
4646 return 0;
4647 }
4648
4649
4650 /*********************************************************************
4651 *
4652 * WM_KILLFOCUS
4653 *
4654 */
4655 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4656 {
4657 es->flags &= ~EF_FOCUSED;
4658 DestroyCaret();
4659 if(!(es->style & ES_NOHIDESEL))
4660 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4661 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4662 return 0;
4663 }
4664
4665
4666 /*********************************************************************
4667 *
4668 * WM_LBUTTONDBLCLK
4669 *
4670 * The caret position has been set on the WM_LBUTTONDOWN message
4671 *
4672 */
4673 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4674 {
4675 INT s;
4676 INT e = es->selection_end;
4677 INT l;
4678 INT li;
4679 INT ll;
4680
4681 es->bCaptureState = TRUE;
4682 SetCapture(es->hwndSelf);
4683
4684 l = EDIT_EM_LineFromChar(es, e);
4685 li = EDIT_EM_LineIndex(es, l);
4686 ll = EDIT_EM_LineLength(es, e);
4687 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4688 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4689 EDIT_EM_SetSel(es, s, e, FALSE);
4690 EDIT_EM_ScrollCaret(es);
4691 es->region_posx = es->region_posy = 0;
4692 SetTimer(es->hwndSelf, 0, 100, NULL);
4693 return 0;
4694 }
4695
4696
4697 /*********************************************************************
4698 *
4699 * WM_LBUTTONDOWN
4700 *
4701 */
4702 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4703 {
4704 INT e;
4705 BOOL after_wrap;
4706
4707 es->bCaptureState = TRUE;
4708 SetCapture(es->hwndSelf);
4709 EDIT_ConfinePoint(es, &x, &y);
4710 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4711 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4712 EDIT_EM_ScrollCaret(es);
4713 es->region_posx = es->region_posy = 0;
4714 SetTimer(es->hwndSelf, 0, 100, NULL);
4715
4716 if (!(es->flags & EF_FOCUSED))
4717 SetFocus(es->hwndSelf);
4718
4719 return 0;
4720 }
4721
4722
4723 /*********************************************************************
4724 *
4725 * WM_LBUTTONUP
4726 *
4727 */
4728 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4729 {
4730 if (es->bCaptureState) {
4731 KillTimer(es->hwndSelf, 0);
4732 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4733 }
4734 es->bCaptureState = FALSE;
4735 return 0;
4736 }
4737
4738
4739 /*********************************************************************
4740 *
4741 * WM_MBUTTONDOWN
4742 *
4743 */
4744 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4745 {
4746 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4747 return 0;
4748 }
4749
4750
4751 /*********************************************************************
4752 *
4753 * WM_MOUSEMOVE
4754 *
4755 */
4756 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4757 {
4758 INT e;
4759 BOOL after_wrap;
4760 INT prex, prey;
4761
4762 /* If the mouse has been captured by process other than the edit control itself,
4763 * the windows edit controls will not select the strings with mouse move.
4764 */
4765 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4766 return 0;
4767
4768 /*
4769 * FIXME: gotta do some scrolling if outside client
4770 * area. Maybe reset the timer ?
4771 */
4772 prex = x; prey = y;
4773 EDIT_ConfinePoint(es, &x, &y);
4774 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4775 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4776 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4777 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4778 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4779 return 0;
4780 }
4781
4782
4783 /*********************************************************************
4784 *
4785 * WM_NCCREATE
4786 *
4787 * See also EDIT_WM_StyleChanged
4788 */
4789 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4790 {
4791 EDITSTATE *es;
4792 UINT alloc_size;
4793
4794 TRACE("Creating %s edit control, style = %08x\n",
4795 unicode ? "Unicode" : "ANSI", lpcs->style);
4796
4797 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4798 return FALSE;
4799 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4800
4801 /*
4802 * Note: since the EDITSTATE has not been fully initialized yet,
4803 * we can't use any API calls that may send
4804 * WM_XXX messages before WM_NCCREATE is completed.
4805 */
4806
4807 es->is_unicode = unicode;
4808 es->style = lpcs->style;
4809
4810 es->bEnableState = !(es->style & WS_DISABLED);
4811
4812 es->hwndSelf = hwnd;
4813 /* Save parent, which will be notified by EN_* messages */
4814 es->hwndParent = lpcs->hwndParent;
4815
4816 if (es->style & ES_COMBO)
4817 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4818
4819 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4820 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4821
4822 /* Number overrides lowercase overrides uppercase (at least it
4823 * does in Win95). However I'll bet that ES_NUMBER would be
4824 * invalid under Win 3.1.
4825 */
4826 if (es->style & ES_NUMBER) {
4827 ; /* do not override the ES_NUMBER */
4828 } else if (es->style & ES_LOWERCASE) {
4829 es->style &= ~ES_UPPERCASE;
4830 }
4831 if (es->style & ES_MULTILINE) {
4832 es->buffer_limit = BUFLIMIT_INITIAL;
4833 if (es->style & WS_VSCROLL)
4834 es->style |= ES_AUTOVSCROLL;
4835 if (es->style & WS_HSCROLL)
4836 es->style |= ES_AUTOHSCROLL;
4837 es->style &= ~ES_PASSWORD;
4838 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4839 /* Confirmed - RIGHT overrides CENTER */
4840 if (es->style & ES_RIGHT)
4841 es->style &= ~ES_CENTER;
4842 es->style &= ~WS_HSCROLL;
4843 es->style &= ~ES_AUTOHSCROLL;
4844 }
4845 } else {
4846 es->buffer_limit = BUFLIMIT_INITIAL;
4847 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4848 es->style &= ~ES_CENTER;
4849 es->style &= ~WS_HSCROLL;
4850 es->style &= ~WS_VSCROLL;
4851 if (es->style & ES_PASSWORD)
4852 es->password_char = '*';
4853 }
4854
4855 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4856 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4857 return FALSE;
4858 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4859
4860 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4861 return FALSE;
4862 es->undo_buffer_size = es->buffer_size;
4863
4864 if (es->style & ES_MULTILINE)
4865 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4866 return FALSE;
4867 es->line_count = 1;
4868
4869 /*
4870 * In Win95 look and feel, the WS_BORDER style is replaced by the
4871 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4872 * control a nonclient area so we don't need to draw the border.
4873 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4874 * a nonclient area and we should handle painting the border ourselves.
4875 *
4876 * When making modifications please ensure that the code still works
4877 * for edit controls created directly with style 0x50800000, exStyle 0
4878 * (which should have a single pixel border)
4879 */
4880 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4881 es->style &= ~WS_BORDER;
4882 else if (es->style & WS_BORDER)
4883 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4884
4885 return TRUE;
4886 }
4887
4888 /*********************************************************************
4889 *
4890 * WM_PAINT
4891 *
4892 */
4893 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4894 {
4895 PAINTSTRUCT ps;
4896 INT i;
4897 HDC dc;
4898 HFONT old_font = 0;
4899 RECT rc;
4900 RECT rcClient;
4901 RECT rcLine;
4902 RECT rcRgn;
4903 HBRUSH brush;
4904 HBRUSH old_brush;
4905 INT bw, bh;
4906 BOOL rev = es->bEnableState &&
4907 ((es->flags & EF_FOCUSED) ||
4908 (es->style & ES_NOHIDESEL));
4909 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4910
4911 GetClientRect(es->hwndSelf, &rcClient);
4912
4913 /* get the background brush */
4914 brush = EDIT_NotifyCtlColor(es, dc);
4915
4916 /* paint the border and the background */
4917 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4918
4919 if(es->style & WS_BORDER) {
4920 bw = GetSystemMetrics(SM_CXBORDER);
4921 bh = GetSystemMetrics(SM_CYBORDER);
4922 rc = rcClient;
4923 if(es->style & ES_MULTILINE) {
4924 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4925 if(es->style & WS_VSCROLL) rc.right+=bw;
4926 }
4927
4928 /* Draw the frame. Same code as in nonclient.c */
4929 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4930 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4931 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4932 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4933 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4934 SelectObject(dc, old_brush);
4935
4936 /* Keep the border clean */
4937 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4938 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4939 }
4940
4941 GetClipBox(dc, &rc);
4942 FillRect(dc, &rc, brush);
4943
4944 IntersectClipRect(dc, es->format_rect.left,
4945 es->format_rect.top,
4946 es->format_rect.right,
4947 es->format_rect.bottom);
4948 if (es->style & ES_MULTILINE) {
4949 rc = rcClient;
4950 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4951 }
4952 if (es->font)
4953 old_font = SelectObject(dc, es->font);
4954
4955 if (!es->bEnableState)
4956 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4957 GetClipBox(dc, &rcRgn);
4958 if (es->style & ES_MULTILINE) {
4959 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4960 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4961 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4962 if (IntersectRect(&rc, &rcRgn, &rcLine))
4963 EDIT_PaintLine(es, dc, i, rev);
4964 }
4965 } else {
4966 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4967 if (IntersectRect(&rc, &rcRgn, &rcLine))
4968 EDIT_PaintLine(es, dc, 0, rev);
4969 }
4970 if (es->font)
4971 SelectObject(dc, old_font);
4972
4973 if (!hdc)
4974 EndPaint(es->hwndSelf, &ps);
4975 }
4976
4977
4978 /*********************************************************************
4979 *
4980 * WM_PASTE
4981 *
4982 */
4983 static void EDIT_WM_Paste(EDITSTATE *es)
4984 {
4985 HGLOBAL hsrc;
4986 LPWSTR src;
4987
4988 /* Protect read-only edit control from modification */
4989 if(es->style & ES_READONLY)
4990 return;
4991
4992 OpenClipboard(es->hwndSelf);
4993 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4994 src = (LPWSTR)GlobalLock(hsrc);
4995 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4996 GlobalUnlock(hsrc);
4997 }
4998 else if (es->style & ES_PASSWORD) {
4999 /* clear selected text in password edit box even with empty clipboard */
5000 const WCHAR empty_strW[] = { 0 };
5001 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
5002 }
5003 CloseClipboard();
5004 }
5005
5006
5007 /*********************************************************************
5008 *
5009 * WM_SETFOCUS
5010 *
5011 */
5012 static void EDIT_WM_SetFocus(EDITSTATE *es)
5013 {
5014 es->flags |= EF_FOCUSED;
5015
5016 if (!(es->style & ES_NOHIDESEL))
5017 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
5018
5019 /* single line edit updates itself */
5020 if (!(es->style & ES_MULTILINE))
5021 {
5022 HDC hdc = GetDC(es->hwndSelf);
5023 EDIT_WM_Paint(es, hdc);
5024 ReleaseDC(es->hwndSelf, hdc);
5025 }
5026
5027 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5028 EDIT_SetCaretPos(es, es->selection_end,
5029 es->flags & EF_AFTER_WRAP);
5030 ShowCaret(es->hwndSelf);
5031 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
5032 }
5033
5034
5035 /*********************************************************************
5036 *
5037 * WM_SETFONT
5038 *
5039 * With Win95 look the margins are set to default font value unless
5040 * the system font (font == 0) is being set, in which case they are left
5041 * unchanged.
5042 *
5043 */
5044 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
5045 {
5046 TEXTMETRICW tm;
5047 HDC dc;
5048 HFONT old_font = 0;
5049 RECT clientRect;
5050
5051 es->font = font;
5052 dc = GetDC(es->hwndSelf);
5053 if (font)
5054 old_font = SelectObject(dc, font);
5055 GetTextMetricsW(dc, &tm);
5056 es->line_height = tm.tmHeight;
5057 es->char_width = tm.tmAveCharWidth;
5058 if (font)
5059 SelectObject(dc, old_font);
5060 ReleaseDC(es->hwndSelf, dc);
5061
5062 /* Reset the format rect and the margins */
5063 GetClientRect(es->hwndSelf, &clientRect);
5064 EDIT_SetRectNP(es, &clientRect);
5065 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
5066 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
5067
5068 if (es->style & ES_MULTILINE)
5069 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
5070 else
5071 EDIT_CalcLineWidth_SL(es);
5072
5073 if (redraw)
5074 EDIT_UpdateText(es, NULL, TRUE);
5075 if (es->flags & EF_FOCUSED) {
5076 DestroyCaret();
5077 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5078 EDIT_SetCaretPos(es, es->selection_end,
5079 es->flags & EF_AFTER_WRAP);
5080 ShowCaret(es->hwndSelf);
5081 }
5082 }
5083
5084
5085 /*********************************************************************
5086 *
5087 * WM_SETTEXT
5088 *
5089 * NOTES
5090 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5091 * The modified flag is reset. No notifications are sent.
5092 *
5093 * For single-line controls, reception of WM_SETTEXT triggers:
5094 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5095 *
5096 */
5097 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5098 {
5099 LPWSTR textW = NULL;
5100 if (!unicode && text)
5101 {
5102 LPCSTR textA = (LPCSTR)text;
5103 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5104 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5105 if (textW)
5106 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5107 text = textW;
5108 }
5109
5110 if (es->flags & EF_UPDATE)
5111 /* fixed this bug once; complain if we see it about to happen again. */
5112 ERR("SetSel may generate UPDATE message whose handler may reset "
5113 "selection.\n");
5114
5115 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5116 if (text)
5117 {
5118 TRACE("%s\n", debugstr_w(text));
5119 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5120 if(!unicode)
5121 HeapFree(GetProcessHeap(), 0, textW);
5122 }
5123 else
5124 {
5125 static const WCHAR empty_stringW[] = {0};
5126 TRACE("<NULL>\n");
5127 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5128 }
5129 es->x_offset = 0;
5130 es->flags &= ~EF_MODIFIED;
5131 EDIT_EM_SetSel(es, 0, 0, FALSE);
5132
5133 /* Send the notification after the selection start and end have been set
5134 * edit control doesn't send notification on WM_SETTEXT
5135 * if it is multiline, or it is part of combobox
5136 */
5137 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5138 {
5139 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5140 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5141 }
5142 EDIT_EM_ScrollCaret(es);
5143 EDIT_UpdateScrollInfo(es);
5144 }
5145
5146
5147 /*********************************************************************
5148 *
5149 * WM_SIZE
5150 *
5151 */
5152 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5153 {
5154 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5155 RECT rc;
5156 TRACE("width = %d, height = %d\n", width, height);
5157 SetRect(&rc, 0, 0, width, height);
5158 EDIT_SetRectNP(es, &rc);
5159 EDIT_UpdateText(es, NULL, TRUE);
5160 }
5161 }
5162
5163
5164 /*********************************************************************
5165 *
5166 * WM_STYLECHANGED
5167 *
5168 * This message is sent by SetWindowLong on having changed either the Style
5169 * or the extended style.
5170 *
5171 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5172 *
5173 * See also EDIT_WM_NCCreate
5174 *
5175 * It appears that the Windows version of the edit control allows the style
5176 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5177 * style variable which will generally be different. In this function we
5178 * update the internal style based on what changed in the externally visible
5179 * style.
5180 *
5181 * Much of this content as based upon the MSDN, especially:
5182 * Platform SDK Documentation -> User Interface Services ->
5183 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5184 * Edit Control Styles
5185 */
5186 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5187 {
5188 if (GWL_STYLE == which) {
5189 DWORD style_change_mask;
5190 DWORD new_style;
5191 /* Only a subset of changes can be applied after the control
5192 * has been created.
5193 */
5194 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5195 ES_NUMBER;
5196 if (es->style & ES_MULTILINE)
5197 style_change_mask |= ES_WANTRETURN;
5198
5199 new_style = style->styleNew & style_change_mask;
5200
5201 /* Number overrides lowercase overrides uppercase (at least it
5202 * does in Win95). However I'll bet that ES_NUMBER would be
5203 * invalid under Win 3.1.
5204 */
5205 if (new_style & ES_NUMBER) {
5206 ; /* do not override the ES_NUMBER */
5207 } else if (new_style & ES_LOWERCASE) {
5208 new_style &= ~ES_UPPERCASE;
5209 }
5210
5211 es->style = (es->style & ~style_change_mask) | new_style;
5212 } else if (GWL_EXSTYLE == which) {
5213 ; /* FIXME - what is needed here */
5214 } else {
5215 WARN ("Invalid style change %ld\n",which);
5216 }
5217
5218 return 0;
5219 }
5220
5221 /*********************************************************************
5222 *
5223 * WM_SYSKEYDOWN
5224 *
5225 */
5226 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5227 {
5228 if ((key == VK_BACK) && (key_data & 0x2000)) {
5229 if (EDIT_EM_CanUndo(es))
5230 EDIT_EM_Undo(es);
5231 return 0;
5232 } else if (key == VK_UP || key == VK_DOWN) {
5233 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5234 return 0;
5235 }
5236 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5237 }
5238
5239
5240 /*********************************************************************
5241 *
5242 * WM_TIMER
5243 *
5244 */
5245 static void EDIT_WM_Timer(EDITSTATE *es)
5246 {
5247 if (es->region_posx < 0) {
5248 EDIT_MoveBackward(es, TRUE);
5249 } else if (es->region_posx > 0) {
5250 EDIT_MoveForward(es, TRUE);
5251 }
5252 /*
5253 * FIXME: gotta do some vertical scrolling here, like
5254 * EDIT_EM_LineScroll(hwnd, 0, 1);
5255 */
5256 }
5257
5258 /*********************************************************************
5259 *
5260 * WM_VSCROLL
5261 *
5262 */
5263 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5264 {
5265 INT dy;
5266
5267 if (!(es->style & ES_MULTILINE))
5268 return 0;
5269
5270 if (!(es->style & ES_AUTOVSCROLL))
5271 return 0;
5272
5273 dy = 0;
5274 switch (action) {
5275 case SB_LINEUP:
5276 case SB_LINEDOWN:
5277 case SB_PAGEUP:
5278 case SB_PAGEDOWN:
5279 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5280 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5281 (action == SB_PAGEUP ? "SB_PAGEUP" :
5282 "SB_PAGEDOWN"))));
5283 EDIT_EM_Scroll(es, action);
5284 return 0;
5285 case SB_TOP:
5286 TRACE("SB_TOP\n");
5287 dy = -es->y_offset;
5288 break;
5289 case SB_BOTTOM:
5290 TRACE("SB_BOTTOM\n");
5291 dy = es->line_count - 1 - es->y_offset;
5292 break;
5293 case SB_THUMBTRACK:
5294 TRACE("SB_THUMBTRACK %d\n", pos);
5295 es->flags |= EF_VSCROLL_TRACK;
5296 if(es->style & WS_VSCROLL)
5297 dy = pos - es->y_offset;
5298 else
5299 {
5300 /* Assume default scroll range 0-100 */
5301 INT vlc, new_y;
5302 /* Sanity check */
5303 if(pos < 0 || pos > 100) return 0;
5304 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5305 new_y = pos * (es->line_count - vlc) / 100;
5306 dy = es->line_count ? (new_y - es->y_offset) : 0;
5307 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5308 es->line_count, es->y_offset, pos, dy);
5309 }
5310 break;
5311 case SB_THUMBPOSITION:
5312 TRACE("SB_THUMBPOSITION %d\n", pos);
5313 es->flags &= ~EF_VSCROLL_TRACK;
5314 if(es->style & WS_VSCROLL)
5315 dy = pos - es->y_offset;
5316 else
5317 {
5318 /* Assume default scroll range 0-100 */
5319 INT vlc, new_y;
5320 /* Sanity check */
5321 if(pos < 0 || pos > 100) return 0;
5322 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5323 new_y = pos * (es->line_count - vlc) / 100;
5324 dy = es->line_count ? (new_y - es->y_offset) : 0;
5325 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5326 es->line_count, es->y_offset, pos, dy);
5327 }
5328 if (!dy)
5329 {
5330 /* force scroll info update */
5331 EDIT_UpdateScrollInfo(es);
5332 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5333 }
5334 break;
5335 case SB_ENDSCROLL:
5336 TRACE("SB_ENDSCROLL\n");
5337 break;
5338 /*
5339 * FIXME : the next two are undocumented !
5340 * Are we doing the right thing ?
5341 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5342 * although it's also a regular control message.
5343 */
5344 case EM_GETTHUMB: /* this one is used by NT notepad */
5345 case EM_GETTHUMB16:
5346 {
5347 LRESULT ret;
5348 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5349 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5350 else
5351 {
5352 /* Assume default scroll range 0-100 */
5353 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5354 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5355 }
5356 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5357 return ret;
5358 }
5359 case EM_LINESCROLL16:
5360 TRACE("EM_LINESCROLL16 %d\n", pos);
5361 dy = pos;
5362 break;
5363
5364 default:
5365 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5366 action, action);
5367 return 0;
5368 }
5369 if (dy)
5370 EDIT_EM_LineScroll(es, 0, dy);
5371 return 0;
5372 }
5373
5374 /*********************************************************************
5375 *
5376 * EDIT_UpdateText
5377 *
5378 */
5379 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5380 {
5381 if (es->flags & EF_UPDATE) {
5382 es->flags &= ~EF_UPDATE;
5383 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5384 }
5385 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5386 }
5387
5388
5389 /*********************************************************************
5390 *
5391 * EDIT_UpdateText
5392 *
5393 */
5394 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
5395 {
5396 if (es->flags & EF_UPDATE) {
5397 es->flags &= ~EF_UPDATE;
5398 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5399 }
5400 InvalidateRect(es->hwndSelf, rc, bErase);
5401 }
5402
5403 /********************************************************************
5404 *
5405 * The Following code is to handle inline editing from IMEs
5406 */
5407
5408 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
5409 {
5410 LONG buflen;
5411 LPWSTR lpCompStr = NULL;
5412 LPSTR lpCompStrAttr = NULL;
5413 DWORD dwBufLenAttr;
5414
5415 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5416
5417 if (buflen < 0)
5418 {
5419 return;
5420 }
5421
5422 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
5423 if (!lpCompStr)
5424 {
5425 ERR("Unable to allocate IME CompositionString\n");
5426 return;
5427 }
5428
5429 if (buflen)
5430 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
5431 lpCompStr[buflen/sizeof(WCHAR)] = 0;
5432
5433 if (CompFlag & GCS_COMPATTR)
5434 {
5435 /*
5436 * We do not use the attributes yet. it would tell us what characters
5437 * are in transition and which are converted or decided upon
5438 */
5439 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5440 if (dwBufLenAttr)
5441 {
5442 dwBufLenAttr ++;
5443 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
5444 if (!lpCompStrAttr)
5445 {
5446 ERR("Unable to allocate IME Attribute String\n");
5447 HeapFree(GetProcessHeap(),0,lpCompStr);
5448 return;
5449 }
5450 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5451 dwBufLenAttr);
5452 lpCompStrAttr[dwBufLenAttr] = 0;
5453 }
5454 else
5455 lpCompStrAttr = NULL;
5456 }
5457
5458 /* check for change in composition start */
5459 if (es->selection_end < es->composition_start)
5460 es->composition_start = es->selection_end;
5461
5462 /* replace existing selection string */
5463 es->selection_start = es->composition_start;
5464
5465 if (es->composition_len > 0)
5466 es->selection_end = es->composition_start + es->composition_len;
5467 else
5468 es->selection_end = es->selection_start;
5469
5470 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5471 es->composition_len = abs(es->composition_start - es->selection_end);
5472
5473 es->selection_start = es->composition_start;
5474 es->selection_end = es->selection_start + es->composition_len;
5475
5476 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5477 HeapFree(GetProcessHeap(),0,lpCompStr);
5478 }
5479
5480 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
5481 {
5482 LONG buflen;
5483 LPWSTR lpResultStr;
5484
5485 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5486 if (buflen <= 0)
5487 {
5488 return;
5489 }
5490
5491 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
5492 if (!lpResultStr)
5493 {
5494 ERR("Unable to alloc buffer for IME string\n");
5495 return;
5496 }
5497
5498 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
5499 lpResultStr[buflen/sizeof(WCHAR)] = 0;
5500
5501 /* check for change in composition start */
5502 if (es->selection_end < es->composition_start)
5503 es->composition_start = es->selection_end;
5504
5505 es->selection_start = es->composition_start;
5506 es->selection_end = es->composition_start + es->composition_len;
5507 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5508 es->composition_start = es->selection_end;
5509 es->composition_len = 0;
5510
5511 HeapFree(GetProcessHeap(),0,lpResultStr);
5512 }
5513
5514 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5515 {
5516 HIMC hIMC;
5517 int cursor;
5518
5519 if (es->composition_len == 0 && es->selection_start != es->selection_end)
5520 {
5521 static const WCHAR empty_stringW[] = {0};
5522 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
5523 es->composition_start = es->selection_end;
5524 }
5525
5526 hIMC = ImmGetContext(hwnd);
5527 if (!hIMC)
5528 return;
5529
5530 if (CompFlag & GCS_RESULTSTR)
5531 EDIT_GetResultStr(hIMC, es);
5532 if (CompFlag & GCS_COMPSTR)
5533 EDIT_GetCompositionStr(hIMC, CompFlag, es);
5534 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
5535 ImmReleaseContext(hwnd, hIMC);
5536 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
5537 }
DirectPlay implementation for GSoC