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wined3d: Introduce WINED3DFMT_INST and use it in CheckTextureCapability().
[wine/testsucceed.git] / dlls / user32 / edit.c
blobd7ab5b4d123b1d0813ee47168aa5b776ae5e590b
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 "win.h"
55 #include "imm.h"
56 #include "wine/unicode.h"
57 #include "controls.h"
58 #include "user_private.h"
59 #include "wine/debug.h"
60
61 WINE_DEFAULT_DEBUG_CHANNEL(edit);
62 WINE_DECLARE_DEBUG_CHANNEL(combo);
63 WINE_DECLARE_DEBUG_CHANNEL(relay);
64
65 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
66 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
67 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
68 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
69
70 /*
71 * extra flags for EDITSTATE.flags field
72 */
73 #define EF_MODIFIED 0x0001 /* text has been modified */
74 #define EF_FOCUSED 0x0002 /* we have input focus */
75 #define EF_UPDATE 0x0004 /* notify parent of changed state */
76 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
77 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
78 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
79 wrapped line, instead of in front of the next character */
80 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
81 #define EF_APP_HAS_HANDLE 0x0200 /* Set when an app sends EM_[G|S]ETHANDLE. We are in sole control of
82 the text buffer if this is clear. */
83 #define EF_DIALOGMODE 0x0400 /* Indicates that we are inside a dialog window */
84
85 typedef enum
86 {
87 END_0 = 0, /* line ends with terminating '\0' character */
88 END_WRAP, /* line is wrapped */
89 END_HARD, /* line ends with a hard return '\r\n' */
90 END_SOFT, /* line ends with a soft return '\r\r\n' */
91 END_RICH /* line ends with a single '\n' */
92 } LINE_END;
93
94 typedef struct tagLINEDEF {
95 INT length; /* bruto length of a line in bytes */
96 INT net_length; /* netto length of a line in visible characters */
97 LINE_END ending;
98 INT width; /* width of the line in pixels */
99 INT index; /* line index into the buffer */
100 struct tagLINEDEF *next;
101 } LINEDEF;
102
103 typedef struct
104 {
105 BOOL is_unicode; /* how the control was created */
106 LPWSTR text; /* the actual contents of the control */
107 UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
108 UINT buffer_size; /* the size of the buffer in characters */
109 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
110 HFONT font; /* NULL means standard system font */
111 INT x_offset; /* scroll offset for multi lines this is in pixels
112 for single lines it's in characters */
113 INT line_height; /* height of a screen line in pixels */
114 INT char_width; /* average character width in pixels */
115 DWORD style; /* sane version of wnd->dwStyle */
116 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
117 INT undo_insert_count; /* number of characters inserted in sequence */
118 UINT undo_position; /* character index of the insertion and deletion */
119 LPWSTR undo_text; /* deleted text */
120 UINT undo_buffer_size; /* size of the deleted text buffer */
121 INT selection_start; /* == selection_end if no selection */
122 INT selection_end; /* == current caret position */
123 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
124 INT left_margin; /* in pixels */
125 INT right_margin; /* in pixels */
126 RECT format_rect;
127 INT text_width; /* width of the widest line in pixels for multi line controls
128 and just line width for single line controls */
129 INT region_posx; /* Position of cursor relative to region: */
130 INT region_posy; /* -1: to left, 0: within, 1: to right */
131 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
132 INT line_count; /* number of lines */
133 INT y_offset; /* scroll offset in number of lines */
134 BOOL bCaptureState; /* flag indicating whether mouse was captured */
135 BOOL bEnableState; /* flag keeping the enable state */
136 HWND hwndSelf; /* the our window handle */
137 HWND hwndParent; /* Handle of parent for sending EN_* messages.
138 Even if parent will change, EN_* messages
139 should be sent to the first parent. */
140 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
141 /*
142 * only for multi line controls
143 */
144 INT lock_count; /* amount of re-entries in the EditWndProc */
145 INT tabs_count;
146 LPINT tabs;
147 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
148 HLOCAL hloc32W; /* our unicode local memory block */
149 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
150 or EM_SETHANDLE */
151 /*
152 * IME Data
153 */
154 UINT composition_len; /* length of composition, 0 == no composition */
155 int composition_start; /* the character position for the composition */
156 } EDITSTATE;
157
158
159 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
160 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
161
162 /* used for disabled or read-only edit control */
163 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
164 do \
165 { /* Notify parent which has created this edit control */ \
166 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
167 SendMessageW(es->hwndParent, WM_COMMAND, \
168 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
169 (LPARAM)(es->hwndSelf)); \
170 } while(0)
171
172
173 /*********************************************************************
174 *
175 * EM_CANUNDO
176 *
177 */
178 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es)
179 {
180 return (es->undo_insert_count || strlenW(es->undo_text));
181 }
182
183
184 /*********************************************************************
185 *
186 * EM_EMPTYUNDOBUFFER
187 *
188 */
189 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
190 {
191 es->undo_insert_count = 0;
192 *es->undo_text = '\0';
193 }
194
195
196 /**********************************************************************
197 * get_app_version
198 *
199 * Returns the window version in case Wine emulates a later version
200 * of windows than the application expects.
201 *
202 * In a number of cases when windows runs an application that was
203 * designed for an earlier windows version, windows reverts
204 * to "old" behaviour of that earlier version.
205 *
206 * An example is a disabled edit control that needs to be painted.
207 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
208 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
209 * applications with an expected version 0f 4.0 or higher.
210 *
211 */
212 static DWORD get_app_version(void)
213 {
214 static DWORD version;
215 if (!version)
216 {
217 DWORD dwEmulatedVersion;
218 OSVERSIONINFOW info;
219 DWORD dwProcVersion = GetProcessVersion(0);
220
221 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
222 GetVersionExW( &info );
223 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
224 /* FIXME: this may not be 100% correct; see discussion on the
225 * wine developer list in Nov 1999 */
226 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
227 }
228 return version;
229 }
230
231 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
232 {
233 HBRUSH hbrush;
234 UINT msg;
235
236 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
237 msg = WM_CTLCOLORSTATIC;
238 else
239 msg = WM_CTLCOLOREDIT;
240
241 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
242 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
243 if (!hbrush)
244 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
245 return hbrush;
246 }
247
248
249 /*********************************************************************
250 *
251 * EDIT_WordBreakProc
252 *
253 * Find the beginning of words.
254 * Note: unlike the specs for a WordBreakProc, this function only
255 * allows to be called without linebreaks between s[0] up to
256 * s[count - 1]. Remember it is only called
257 * internally, so we can decide this for ourselves.
258 *
259 */
260 static INT EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
261 {
262 INT ret = 0;
263
264 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
265
266 if(!s) return 0;
267
268 switch (action) {
269 case WB_LEFT:
270 if (!count)
271 break;
272 if (index)
273 index--;
274 if (s[index] == ' ') {
275 while (index && (s[index] == ' '))
276 index--;
277 if (index) {
278 while (index && (s[index] != ' '))
279 index--;
280 if (s[index] == ' ')
281 index++;
282 }
283 } else {
284 while (index && (s[index] != ' '))
285 index--;
286 if (s[index] == ' ')
287 index++;
288 }
289 ret = index;
290 break;
291 case WB_RIGHT:
292 if (!count)
293 break;
294 if (index)
295 index--;
296 if (s[index] == ' ')
297 while ((index < count) && (s[index] == ' ')) index++;
298 else {
299 while (s[index] && (s[index] != ' ') && (index < count))
300 index++;
301 while ((s[index] == ' ') && (index < count)) index++;
302 }
303 ret = index;
304 break;
305 case WB_ISDELIMITER:
306 ret = (s[index] == ' ');
307 break;
308 default:
309 ERR("unknown action code, please report !\n");
310 break;
311 }
312 return ret;
313 }
314
315
316 /*********************************************************************
317 *
318 * EDIT_CallWordBreakProc
319 *
320 * Call appropriate WordBreakProc (internal or external).
321 *
322 * Note: The "start" argument should always be an index referring
323 * to es->text. The actual wordbreak proc might be
324 * 16 bit, so we can't always pass any 32 bit LPSTR.
325 * Hence we assume that es->text is the buffer that holds
326 * the string under examination (we can decide this for ourselves).
327 *
328 */
329 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
330 {
331 INT ret;
332
333 if (es->word_break_proc)
334 {
335 if(es->is_unicode)
336 {
337 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
338
339 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
340 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
341 ret = wbpW(es->text + start, index, count, action);
342 }
343 else
344 {
345 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
346 INT countA;
347 CHAR *textA;
348
349 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
350 textA = HeapAlloc(GetProcessHeap(), 0, countA);
351 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
352 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
353 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
354 ret = wbpA(textA, index, countA, action);
355 HeapFree(GetProcessHeap(), 0, textA);
356 }
357 }
358 else
359 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
360
361 return ret;
362 }
363
364 /*********************************************************************
365 *
366 * EDIT_BuildLineDefs_ML
367 *
368 * Build linked list of text lines.
369 * Lines can end with '\0' (last line), a character (if it is wrapped),
370 * a soft return '\r\r\n' or a hard return '\r\n'
371 *
372 */
373 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
374 {
375 HDC dc;
376 HFONT old_font = 0;
377 LPWSTR current_position, cp;
378 INT fw;
379 LINEDEF *current_line;
380 LINEDEF *previous_line;
381 LINEDEF *start_line;
382 INT line_index = 0, nstart_line = 0, nstart_index = 0;
383 INT line_count = es->line_count;
384 INT orig_net_length;
385 RECT rc;
386
387 if (istart == iend && delta == 0)
388 return;
389
390 dc = GetDC(es->hwndSelf);
391 if (es->font)
392 old_font = SelectObject(dc, es->font);
393
394 previous_line = NULL;
395 current_line = es->first_line_def;
396
397 /* Find starting line. istart must lie inside an existing line or
398 * at the end of buffer */
399 do {
400 if (istart < current_line->index + current_line->length ||
401 current_line->ending == END_0)
402 break;
403
404 previous_line = current_line;
405 current_line = current_line->next;
406 line_index++;
407 } while (current_line);
408
409 if (!current_line) /* Error occurred start is not inside previous buffer */
410 {
411 FIXME(" modification occurred outside buffer\n");
412 ReleaseDC(es->hwndSelf, dc);
413 return;
414 }
415
416 /* Remember start of modifications in order to calculate update region */
417 nstart_line = line_index;
418 nstart_index = current_line->index;
419
420 /* We must start to reformat from the previous line since the modifications
421 * may have caused the line to wrap upwards. */
422 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
423 {
424 line_index--;
425 current_line = previous_line;
426 }
427 start_line = current_line;
428
429 fw = es->format_rect.right - es->format_rect.left;
430 current_position = es->text + current_line->index;
431 do {
432 if (current_line != start_line)
433 {
434 if (!current_line || current_line->index + delta > current_position - es->text)
435 {
436 /* The buffer has been expanded, create a new line and
437 insert it into the link list */
438 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
439 new_line->next = previous_line->next;
440 previous_line->next = new_line;
441 current_line = new_line;
442 es->line_count++;
443 }
444 else if (current_line->index + delta < current_position - es->text)
445 {
446 /* The previous line merged with this line so we delete this extra entry */
447 previous_line->next = current_line->next;
448 HeapFree(GetProcessHeap(), 0, current_line);
449 current_line = previous_line->next;
450 es->line_count--;
451 continue;
452 }
453 else /* current_line->index + delta == current_position */
454 {
455 if (current_position - es->text > iend)
456 break; /* We reached end of line modifications */
457 /* else recalculate this line */
458 }
459 }
460
461 current_line->index = current_position - es->text;
462 orig_net_length = current_line->net_length;
463
464 /* Find end of line */
465 cp = current_position;
466 while (*cp) {
467 if (*cp == '\n') break;
468 if ((*cp == '\r') && (*(cp + 1) == '\n'))
469 break;
470 cp++;
471 }
472
473 /* Mark type of line termination */
474 if (!(*cp)) {
475 current_line->ending = END_0;
476 current_line->net_length = strlenW(current_position);
477 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
478 current_line->ending = END_SOFT;
479 current_line->net_length = cp - current_position - 1;
480 } else if (*cp == '\n') {
481 current_line->ending = END_RICH;
482 current_line->net_length = cp - current_position;
483 } else {
484 current_line->ending = END_HARD;
485 current_line->net_length = cp - current_position;
486 }
487
488 /* Calculate line width */
489 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
490 current_position, current_line->net_length,
491 es->tabs_count, es->tabs));
492
493 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
494 if (!(es->style & ES_AUTOHSCROLL)) {
495 if (current_line->width > fw) {
496 INT next = 0;
497 INT prev;
498 do {
499 prev = next;
500 next = EDIT_CallWordBreakProc(es, current_position - es->text,
501 prev + 1, current_line->net_length, WB_RIGHT);
502 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
503 current_position, next, es->tabs_count, es->tabs));
504 } while (current_line->width <= fw);
505 if (!prev) { /* Didn't find a line break so force a break */
506 next = 0;
507 do {
508 prev = next;
509 next++;
510 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
511 current_position, next, es->tabs_count, es->tabs));
512 } while (current_line->width <= fw);
513 if (!prev)
514 prev = 1;
515 }
516
517 /* If the first line we are calculating, wrapped before istart, we must
518 * adjust istart in order for this to be reflected in the update region. */
519 if (current_line->index == nstart_index && istart > current_line->index + prev)
520 istart = current_line->index + prev;
521 /* else if we are updating the previous line before the first line we
522 * are re-calculating and it expanded */
523 else if (current_line == start_line &&
524 current_line->index != nstart_index && orig_net_length < prev)
525 {
526 /* Line expanded due to an upwards line wrap so we must partially include
527 * previous line in update region */
528 nstart_line = line_index;
529 nstart_index = current_line->index;
530 istart = current_line->index + orig_net_length;
531 }
532
533 current_line->net_length = prev;
534 current_line->ending = END_WRAP;
535 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
536 current_line->net_length, es->tabs_count, es->tabs));
537 }
538 else if (current_line == start_line &&
539 current_line->index != nstart_index &&
540 orig_net_length < current_line->net_length) {
541 /* The previous line expanded but it's still not as wide as the client rect */
542 /* The expansion is due to an upwards line wrap so we must partially include
543 it in the update region */
544 nstart_line = line_index;
545 nstart_index = current_line->index;
546 istart = current_line->index + orig_net_length;
547 }
548 }
549
550
551 /* Adjust length to include line termination */
552 switch (current_line->ending) {
553 case END_SOFT:
554 current_line->length = current_line->net_length + 3;
555 break;
556 case END_RICH:
557 current_line->length = current_line->net_length + 1;
558 break;
559 case END_HARD:
560 current_line->length = current_line->net_length + 2;
561 break;
562 case END_WRAP:
563 case END_0:
564 current_line->length = current_line->net_length;
565 break;
566 }
567 es->text_width = max(es->text_width, current_line->width);
568 current_position += current_line->length;
569 previous_line = current_line;
570 current_line = current_line->next;
571 line_index++;
572 } while (previous_line->ending != END_0);
573
574 /* Finish adjusting line indexes by delta or remove hanging lines */
575 if (previous_line->ending == END_0)
576 {
577 LINEDEF *pnext = NULL;
578
579 previous_line->next = NULL;
580 while (current_line)
581 {
582 pnext = current_line->next;
583 HeapFree(GetProcessHeap(), 0, current_line);
584 current_line = pnext;
585 es->line_count--;
586 }
587 }
588 else if (delta != 0)
589 {
590 while (current_line)
591 {
592 current_line->index += delta;
593 current_line = current_line->next;
594 }
595 }
596
597 /* Calculate rest of modification rectangle */
598 if (hrgn)
599 {
600 HRGN tmphrgn;
601 /*
602 * We calculate two rectangles. One for the first line which may have
603 * an indent with respect to the format rect. The other is a format-width
604 * rectangle that spans the rest of the lines that changed or moved.
605 */
606 rc.top = es->format_rect.top + nstart_line * es->line_height -
607 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
608 rc.bottom = rc.top + es->line_height;
609 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
610 rc.left = es->format_rect.left;
611 else
612 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
613 es->text + nstart_index, istart - nstart_index,
614 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
615 rc.right = es->format_rect.right;
616 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
617
618 rc.top = rc.bottom;
619 rc.left = es->format_rect.left;
620 rc.right = es->format_rect.right;
621 /*
622 * If lines were added or removed we must re-paint the remainder of the
623 * lines since the remaining lines were either shifted up or down.
624 */
625 if (line_count < es->line_count) /* We added lines */
626 rc.bottom = es->line_count * es->line_height;
627 else if (line_count > es->line_count) /* We removed lines */
628 rc.bottom = line_count * es->line_height;
629 else
630 rc.bottom = line_index * es->line_height;
631 rc.bottom += es->format_rect.top;
632 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
633 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
634 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
635 DeleteObject(tmphrgn);
636 }
637
638 if (es->font)
639 SelectObject(dc, old_font);
640
641 ReleaseDC(es->hwndSelf, dc);
642 }
643
644
645 static inline UINT get_text_length(EDITSTATE *es)
646 {
647 if(es->text_length == (UINT)-1)
648 es->text_length = strlenW(es->text);
649 return es->text_length;
650 }
651
652 /*********************************************************************
653 *
654 * EDIT_GetPasswordPointer_SL
655 *
656 * note: caller should free the (optionally) allocated buffer
657 *
658 */
659 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
660 {
661 if (es->style & ES_PASSWORD) {
662 INT len = get_text_length(es);
663 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
664 text[len] = '\0';
665 while(len) text[--len] = es->password_char;
666 return text;
667 } else
668 return es->text;
669 }
670
671
672 /*********************************************************************
673 *
674 * EDIT_CalcLineWidth_SL
675 *
676 */
677 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
678 {
679 SIZE size;
680 LPWSTR text;
681 HDC dc;
682 HFONT old_font = 0;
683
684 text = EDIT_GetPasswordPointer_SL(es);
685
686 dc = GetDC(es->hwndSelf);
687 if (es->font)
688 old_font = SelectObject(dc, es->font);
689
690 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
691
692 if (es->font)
693 SelectObject(dc, old_font);
694 ReleaseDC(es->hwndSelf, dc);
695
696 if (es->style & ES_PASSWORD)
697 HeapFree(GetProcessHeap(), 0, text);
698
699 es->text_width = size.cx;
700 }
701
702 /*********************************************************************
703 *
704 * EDIT_CharFromPos
705 *
706 * Beware: This is not the function called on EM_CHARFROMPOS
707 * The position _can_ be outside the formatting / client
708 * rectangle
709 * The return value is only the character index
710 *
711 */
712 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
713 {
714 INT index;
715 HDC dc;
716 HFONT old_font = 0;
717 INT x_high = 0, x_low = 0;
718
719 if (es->style & ES_MULTILINE) {
720 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
721 INT line_index = 0;
722 LINEDEF *line_def = es->first_line_def;
723 INT low, high;
724 while ((line > 0) && line_def->next) {
725 line_index += line_def->length;
726 line_def = line_def->next;
727 line--;
728 }
729 x += es->x_offset - es->format_rect.left;
730 if (es->style & ES_RIGHT)
731 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
732 else if (es->style & ES_CENTER)
733 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
734 if (x >= line_def->width) {
735 if (after_wrap)
736 *after_wrap = (line_def->ending == END_WRAP);
737 return line_index + line_def->net_length;
738 }
739 if (x <= 0) {
740 if (after_wrap)
741 *after_wrap = FALSE;
742 return line_index;
743 }
744 dc = GetDC(es->hwndSelf);
745 if (es->font)
746 old_font = SelectObject(dc, es->font);
747 low = line_index;
748 high = line_index + line_def->net_length + 1;
749 while (low < high - 1)
750 {
751 INT mid = (low + high) / 2;
752 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
753 if (x_now > x) {
754 high = mid;
755 x_high = x_now;
756 } else {
757 low = mid;
758 x_low = x_now;
759 }
760 }
761 if (abs(x_high - x) + 1 <= abs(x_low - x))
762 index = high;
763 else
764 index = low;
765
766 if (after_wrap)
767 *after_wrap = ((index == line_index + line_def->net_length) &&
768 (line_def->ending == END_WRAP));
769 } else {
770 LPWSTR text;
771 SIZE size;
772 if (after_wrap)
773 *after_wrap = FALSE;
774 x -= es->format_rect.left;
775 if (!x)
776 return es->x_offset;
777
778 if (!es->x_offset)
779 {
780 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
781 if (es->style & ES_RIGHT)
782 x -= indent;
783 else if (es->style & ES_CENTER)
784 x -= indent / 2;
785 }
786
787 text = EDIT_GetPasswordPointer_SL(es);
788 dc = GetDC(es->hwndSelf);
789 if (es->font)
790 old_font = SelectObject(dc, es->font);
791 if (x < 0)
792 {
793 INT low = 0;
794 INT high = es->x_offset;
795 while (low < high - 1)
796 {
797 INT mid = (low + high) / 2;
798 GetTextExtentPoint32W( dc, text + mid,
799 es->x_offset - mid, &size );
800 if (size.cx > -x) {
801 low = mid;
802 x_low = size.cx;
803 } else {
804 high = mid;
805 x_high = size.cx;
806 }
807 }
808 if (abs(x_high + x) <= abs(x_low + x) + 1)
809 index = high;
810 else
811 index = low;
812 }
813 else
814 {
815 INT low = es->x_offset;
816 INT high = get_text_length(es) + 1;
817 while (low < high - 1)
818 {
819 INT mid = (low + high) / 2;
820 GetTextExtentPoint32W( dc, text + es->x_offset,
821 mid - es->x_offset, &size );
822 if (size.cx > x) {
823 high = mid;
824 x_high = size.cx;
825 } else {
826 low = mid;
827 x_low = size.cx;
828 }
829 }
830 if (abs(x_high - x) <= abs(x_low - x) + 1)
831 index = high;
832 else
833 index = low;
834 }
835 if (es->style & ES_PASSWORD)
836 HeapFree(GetProcessHeap(), 0, text);
837 }
838 if (es->font)
839 SelectObject(dc, old_font);
840 ReleaseDC(es->hwndSelf, dc);
841 return index;
842 }
843
844
845 /*********************************************************************
846 *
847 * EDIT_ConfinePoint
848 *
849 * adjusts the point to be within the formatting rectangle
850 * (so CharFromPos returns the nearest _visible_ character)
851 *
852 */
853 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
854 {
855 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
856 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
857 }
858
859
860 /*********************************************************************
861 *
862 * EM_LINEFROMCHAR
863 *
864 */
865 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
866 {
867 INT line;
868 LINEDEF *line_def;
869
870 if (!(es->style & ES_MULTILINE))
871 return 0;
872 if (index > (INT)get_text_length(es))
873 return es->line_count - 1;
874 if (index == -1)
875 index = min(es->selection_start, es->selection_end);
876
877 line = 0;
878 line_def = es->first_line_def;
879 index -= line_def->length;
880 while ((index >= 0) && line_def->next) {
881 line++;
882 line_def = line_def->next;
883 index -= line_def->length;
884 }
885 return line;
886 }
887
888
889 /*********************************************************************
890 *
891 * EM_LINEINDEX
892 *
893 */
894 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
895 {
896 INT line_index;
897 const LINEDEF *line_def;
898
899 if (!(es->style & ES_MULTILINE))
900 return 0;
901 if (line >= es->line_count)
902 return -1;
903
904 line_index = 0;
905 line_def = es->first_line_def;
906 if (line == -1) {
907 INT index = es->selection_end - line_def->length;
908 while ((index >= 0) && line_def->next) {
909 line_index += line_def->length;
910 line_def = line_def->next;
911 index -= line_def->length;
912 }
913 } else {
914 while (line > 0) {
915 line_index += line_def->length;
916 line_def = line_def->next;
917 line--;
918 }
919 }
920 return line_index;
921 }
922
923
924 /*********************************************************************
925 *
926 * EM_LINELENGTH
927 *
928 */
929 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
930 {
931 LINEDEF *line_def;
932
933 if (!(es->style & ES_MULTILINE))
934 return get_text_length(es);
935
936 if (index == -1) {
937 /* get the number of remaining non-selected chars of selected lines */
938 INT32 l; /* line number */
939 INT32 li; /* index of first char in line */
940 INT32 count;
941 l = EDIT_EM_LineFromChar(es, es->selection_start);
942 /* # chars before start of selection area */
943 count = es->selection_start - EDIT_EM_LineIndex(es, l);
944 l = EDIT_EM_LineFromChar(es, es->selection_end);
945 /* # chars after end of selection */
946 li = EDIT_EM_LineIndex(es, l);
947 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
948 return count;
949 }
950 line_def = es->first_line_def;
951 index -= line_def->length;
952 while ((index >= 0) && line_def->next) {
953 line_def = line_def->next;
954 index -= line_def->length;
955 }
956 return line_def->net_length;
957 }
958
959
960 /*********************************************************************
961 *
962 * EM_POSFROMCHAR
963 *
964 */
965 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
966 {
967 INT len = get_text_length(es);
968 INT l;
969 INT li;
970 INT x;
971 INT y = 0;
972 INT w;
973 INT lw = 0;
974 INT ll = 0;
975 HDC dc;
976 HFONT old_font = 0;
977 SIZE size;
978 LINEDEF *line_def;
979
980 index = min(index, len);
981 dc = GetDC(es->hwndSelf);
982 if (es->font)
983 old_font = SelectObject(dc, es->font);
984 if (es->style & ES_MULTILINE) {
985 l = EDIT_EM_LineFromChar(es, index);
986 y = (l - es->y_offset) * es->line_height;
987 li = EDIT_EM_LineIndex(es, l);
988 if (after_wrap && (li == index) && l) {
989 INT l2 = l - 1;
990 line_def = es->first_line_def;
991 while (l2) {
992 line_def = line_def->next;
993 l2--;
994 }
995 if (line_def->ending == END_WRAP) {
996 l--;
997 y -= es->line_height;
998 li = EDIT_EM_LineIndex(es, l);
999 }
1000 }
1001
1002 line_def = es->first_line_def;
1003 while (line_def->index != li)
1004 line_def = line_def->next;
1005
1006 ll = line_def->net_length;
1007 lw = line_def->width;
1008
1009 w = es->format_rect.right - es->format_rect.left;
1010 if (es->style & ES_RIGHT)
1011 {
1012 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
1013 es->tabs_count, es->tabs)) - es->x_offset;
1014 x = w - x;
1015 }
1016 else if (es->style & ES_CENTER)
1017 {
1018 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
1019 es->tabs_count, es->tabs)) - es->x_offset;
1020 x += (w - lw) / 2;
1021 }
1022 else /* ES_LEFT */
1023 {
1024 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
1025 es->tabs_count, es->tabs)) - es->x_offset;
1026 }
1027 } else {
1028 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
1029 if (index < es->x_offset) {
1030 GetTextExtentPoint32W(dc, text + index,
1031 es->x_offset - index, &size);
1032 x = -size.cx;
1033 } else {
1034 GetTextExtentPoint32W(dc, text + es->x_offset,
1035 index - es->x_offset, &size);
1036 x = size.cx;
1037
1038 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
1039 {
1040 w = es->format_rect.right - es->format_rect.left;
1041 if (w > es->text_width)
1042 {
1043 if (es->style & ES_RIGHT)
1044 x += w - es->text_width;
1045 else if (es->style & ES_CENTER)
1046 x += (w - es->text_width) / 2;
1047 }
1048 }
1049 }
1050 y = 0;
1051 if (es->style & ES_PASSWORD)
1052 HeapFree(GetProcessHeap(), 0, text);
1053 }
1054 x += es->format_rect.left;
1055 y += es->format_rect.top;
1056 if (es->font)
1057 SelectObject(dc, old_font);
1058 ReleaseDC(es->hwndSelf, dc);
1059 return MAKELONG((INT16)x, (INT16)y);
1060 }
1061
1062
1063 /*********************************************************************
1064 *
1065 * EDIT_GetLineRect
1066 *
1067 * Calculates the bounding rectangle for a line from a starting
1068 * column to an ending column.
1069 *
1070 */
1071 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1072 {
1073 INT line_index = EDIT_EM_LineIndex(es, line);
1074
1075 if (es->style & ES_MULTILINE)
1076 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1077 else
1078 rc->top = es->format_rect.top;
1079 rc->bottom = rc->top + es->line_height;
1080 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1081 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1082 }
1083
1084
1085 static inline void text_buffer_changed(EDITSTATE *es)
1086 {
1087 es->text_length = (UINT)-1;
1088 }
1089
1090 /*********************************************************************
1091 *
1092 * EDIT_LockBuffer
1093 *
1094 * This acts as a LocalLock16(), but it locks only once. This way
1095 * you can call it whenever you like, without unlocking.
1096 *
1097 * Initially the edit control allocates a HLOCAL32 buffer
1098 * (32 bit linear memory handler). However, 16 bit application
1099 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1100 * handler). From that moment on we have to keep using this 16 bit memory
1101 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1102 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1103 * conversion.
1104 *
1105 */
1106 static void EDIT_LockBuffer(EDITSTATE *es)
1107 {
1108 if (!es->text) {
1109
1110 if(!es->hloc32W) return;
1111
1112 if(es->hloc32A)
1113 {
1114 CHAR *textA = LocalLock(es->hloc32A);
1115 HLOCAL hloc32W_new;
1116 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
1117 if(countW_new > es->buffer_size + 1)
1118 {
1119 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1120 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1121 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1122 if(hloc32W_new)
1123 {
1124 es->hloc32W = hloc32W_new;
1125 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1126 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1127 }
1128 else
1129 WARN("FAILED! Will synchronize partially\n");
1130 }
1131 es->text = LocalLock(es->hloc32W);
1132 MultiByteToWideChar(CP_ACP, 0, textA, -1, es->text, es->buffer_size + 1);
1133 LocalUnlock(es->hloc32A);
1134 }
1135 else es->text = LocalLock(es->hloc32W);
1136 }
1137 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1138 es->lock_count++;
1139 }
1140
1141
1142 /*********************************************************************
1143 *
1144 * EDIT_UnlockBuffer
1145 *
1146 */
1147 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
1148 {
1149
1150 /* Edit window might be already destroyed */
1151 if(!IsWindow(es->hwndSelf))
1152 {
1153 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
1154 return;
1155 }
1156
1157 if (!es->lock_count) {
1158 ERR("lock_count == 0 ... please report\n");
1159 return;
1160 }
1161 if (!es->text) {
1162 ERR("es->text == 0 ... please report\n");
1163 return;
1164 }
1165
1166 if (force || (es->lock_count == 1)) {
1167 if (es->hloc32W) {
1168 UINT countA = 0;
1169 UINT countW = get_text_length(es) + 1;
1170
1171 if(es->hloc32A)
1172 {
1173 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
1174 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1175 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
1176 countA = LocalSize(es->hloc32A);
1177 if(countA_new > countA)
1178 {
1179 HLOCAL hloc32A_new;
1180 UINT alloc_size = ROUND_TO_GROW(countA_new);
1181 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
1182 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1183 if(hloc32A_new)
1184 {
1185 es->hloc32A = hloc32A_new;
1186 countA = LocalSize(hloc32A_new);
1187 TRACE("Real new size %d bytes\n", countA);
1188 }
1189 else
1190 WARN("FAILED! Will synchronize partially\n");
1191 }
1192 WideCharToMultiByte(CP_ACP, 0, es->text, countW,
1193 LocalLock(es->hloc32A), countA, NULL, NULL);
1194 LocalUnlock(es->hloc32A);
1195 }
1196
1197 LocalUnlock(es->hloc32W);
1198 es->text = NULL;
1199 }
1200 else {
1201 ERR("no buffer ... please report\n");
1202 return;
1203 }
1204 }
1205 es->lock_count--;
1206 }
1207
1208
1209 /*********************************************************************
1210 *
1211 * EDIT_MakeFit
1212 *
1213 * Try to fit size + 1 characters in the buffer.
1214 */
1215 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1216 {
1217 HLOCAL hNew32W;
1218
1219 if (size <= es->buffer_size)
1220 return TRUE;
1221
1222 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1223
1224 /* Force edit to unlock it's buffer. es->text now NULL */
1225 EDIT_UnlockBuffer(es, TRUE);
1226
1227 if (es->hloc32W) {
1228 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1229 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1230 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1231 es->hloc32W = hNew32W;
1232 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1233 }
1234 }
1235
1236 EDIT_LockBuffer(es);
1237
1238 if (es->buffer_size < size) {
1239 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1240 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1241 return FALSE;
1242 } else {
1243 TRACE("We now have %d+1\n", es->buffer_size);
1244 return TRUE;
1245 }
1246 }
1247
1248
1249 /*********************************************************************
1250 *
1251 * EDIT_MakeUndoFit
1252 *
1253 * Try to fit size + 1 bytes in the undo buffer.
1254 *
1255 */
1256 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1257 {
1258 UINT alloc_size;
1259
1260 if (size <= es->undo_buffer_size)
1261 return TRUE;
1262
1263 TRACE("trying to ReAlloc to %d+1\n", size);
1264
1265 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1266 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1267 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1268 return TRUE;
1269 }
1270 else
1271 {
1272 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1273 return FALSE;
1274 }
1275 }
1276
1277
1278 /*********************************************************************
1279 *
1280 * EDIT_UpdateTextRegion
1281 *
1282 */
1283 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
1284 {
1285 if (es->flags & EF_UPDATE) {
1286 es->flags &= ~EF_UPDATE;
1287 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1288 }
1289 InvalidateRgn(es->hwndSelf, hrgn, bErase);
1290 }
1291
1292
1293 /*********************************************************************
1294 *
1295 * EDIT_UpdateText
1296 *
1297 */
1298 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
1299 {
1300 if (es->flags & EF_UPDATE) {
1301 es->flags &= ~EF_UPDATE;
1302 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1303 }
1304 InvalidateRect(es->hwndSelf, rc, bErase);
1305 }
1306
1307 /*********************************************************************
1308 *
1309 * EDIT_SL_InvalidateText
1310 *
1311 * Called from EDIT_InvalidateText().
1312 * Does the job for single-line controls only.
1313 *
1314 */
1315 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1316 {
1317 RECT line_rect;
1318 RECT rc;
1319
1320 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1321 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1322 EDIT_UpdateText(es, &rc, TRUE);
1323 }
1324
1325
1326 static inline INT get_vertical_line_count(EDITSTATE *es)
1327 {
1328 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1329 return max(1,vlc);
1330 }
1331
1332 /*********************************************************************
1333 *
1334 * EDIT_ML_InvalidateText
1335 *
1336 * Called from EDIT_InvalidateText().
1337 * Does the job for multi-line controls only.
1338 *
1339 */
1340 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1341 {
1342 INT vlc = get_vertical_line_count(es);
1343 INT sl = EDIT_EM_LineFromChar(es, start);
1344 INT el = EDIT_EM_LineFromChar(es, end);
1345 INT sc;
1346 INT ec;
1347 RECT rc1;
1348 RECT rcWnd;
1349 RECT rcLine;
1350 RECT rcUpdate;
1351 INT l;
1352
1353 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1354 return;
1355
1356 sc = start - EDIT_EM_LineIndex(es, sl);
1357 ec = end - EDIT_EM_LineIndex(es, el);
1358 if (sl < es->y_offset) {
1359 sl = es->y_offset;
1360 sc = 0;
1361 }
1362 if (el > es->y_offset + vlc) {
1363 el = es->y_offset + vlc;
1364 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1365 }
1366 GetClientRect(es->hwndSelf, &rc1);
1367 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1368 if (sl == el) {
1369 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1370 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1371 EDIT_UpdateText(es, &rcUpdate, TRUE);
1372 } else {
1373 EDIT_GetLineRect(es, sl, sc,
1374 EDIT_EM_LineLength(es,
1375 EDIT_EM_LineIndex(es, sl)),
1376 &rcLine);
1377 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1378 EDIT_UpdateText(es, &rcUpdate, TRUE);
1379 for (l = sl + 1 ; l < el ; l++) {
1380 EDIT_GetLineRect(es, l, 0,
1381 EDIT_EM_LineLength(es,
1382 EDIT_EM_LineIndex(es, l)),
1383 &rcLine);
1384 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1385 EDIT_UpdateText(es, &rcUpdate, TRUE);
1386 }
1387 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1388 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1389 EDIT_UpdateText(es, &rcUpdate, TRUE);
1390 }
1391 }
1392
1393
1394 /*********************************************************************
1395 *
1396 * EDIT_InvalidateText
1397 *
1398 * Invalidate the text from offset start up to, but not including,
1399 * offset end. Useful for (re)painting the selection.
1400 * Regions outside the linewidth are not invalidated.
1401 * end == -1 means end == TextLength.
1402 * start and end need not be ordered.
1403 *
1404 */
1405 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1406 {
1407 if (end == start)
1408 return;
1409
1410 if (end == -1)
1411 end = get_text_length(es);
1412
1413 if (end < start) {
1414 INT tmp = start;
1415 start = end;
1416 end = tmp;
1417 }
1418
1419 if (es->style & ES_MULTILINE)
1420 EDIT_ML_InvalidateText(es, start, end);
1421 else
1422 EDIT_SL_InvalidateText(es, start, end);
1423 }
1424
1425
1426 /*********************************************************************
1427 *
1428 * EDIT_EM_SetSel
1429 *
1430 * note: unlike the specs say: the order of start and end
1431 * _is_ preserved in Windows. (i.e. start can be > end)
1432 * In other words: this handler is OK
1433 *
1434 */
1435 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
1436 {
1437 UINT old_start = es->selection_start;
1438 UINT old_end = es->selection_end;
1439 UINT len = get_text_length(es);
1440
1441 if (start == (UINT)-1) {
1442 start = es->selection_end;
1443 end = es->selection_end;
1444 } else {
1445 start = min(start, len);
1446 end = min(end, len);
1447 }
1448 es->selection_start = start;
1449 es->selection_end = end;
1450 if (after_wrap)
1451 es->flags |= EF_AFTER_WRAP;
1452 else
1453 es->flags &= ~EF_AFTER_WRAP;
1454 /* Compute the necessary invalidation region. */
1455 /* Note that we don't need to invalidate regions which have
1456 * "never" been selected, or those which are "still" selected.
1457 * In fact, every time we hit a selection boundary, we can
1458 * *toggle* whether we need to invalidate. Thus we can optimize by
1459 * *sorting* the interval endpoints. Let's assume that we sort them
1460 * in this order:
1461 * start <= end <= old_start <= old_end
1462 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
1463 * in 5 comparisons; i.e. it is impossible to do better than the
1464 * following: */
1465 ORDER_UINT(end, old_end);
1466 ORDER_UINT(start, old_start);
1467 ORDER_UINT(old_start, old_end);
1468 ORDER_UINT(start, end);
1469 /* Note that at this point 'end' and 'old_start' are not in order, but
1470 * start is definitely the min. and old_end is definitely the max. */
1471 if (end != old_start)
1472 {
1473 /*
1474 * One can also do
1475 * ORDER_UINT32(end, old_start);
1476 * EDIT_InvalidateText(es, start, end);
1477 * EDIT_InvalidateText(es, old_start, old_end);
1478 * in place of the following if statement.
1479 * (That would complete the optimal five-comparison four-element sort.)
1480 */
1481 if (old_start > end )
1482 {
1483 EDIT_InvalidateText(es, start, end);
1484 EDIT_InvalidateText(es, old_start, old_end);
1485 }
1486 else
1487 {
1488 EDIT_InvalidateText(es, start, old_start);
1489 EDIT_InvalidateText(es, end, old_end);
1490 }
1491 }
1492 else EDIT_InvalidateText(es, start, old_end);
1493 }
1494
1495
1496 /*********************************************************************
1497 *
1498 * EDIT_UpdateScrollInfo
1499 *
1500 */
1501 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
1502 {
1503 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
1504 {
1505 SCROLLINFO si;
1506 si.cbSize = sizeof(SCROLLINFO);
1507 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1508 si.nMin = 0;
1509 si.nMax = es->line_count - 1;
1510 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1511 si.nPos = es->y_offset;
1512 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1513 si.nMin, si.nMax, si.nPage, si.nPos);
1514 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
1515 }
1516
1517 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
1518 {
1519 SCROLLINFO si;
1520 si.cbSize = sizeof(SCROLLINFO);
1521 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1522 si.nMin = 0;
1523 si.nMax = es->text_width - 1;
1524 si.nPage = es->format_rect.right - es->format_rect.left;
1525 si.nPos = es->x_offset;
1526 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1527 si.nMin, si.nMax, si.nPage, si.nPos);
1528 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
1529 }
1530 }
1531
1532
1533 /*********************************************************************
1534 *
1535 * EDIT_EM_LineScroll_internal
1536 *
1537 * Version of EDIT_EM_LineScroll for internal use.
1538 * It doesn't refuse if ES_MULTILINE is set and assumes that
1539 * dx is in pixels, dy - in lines.
1540 *
1541 */
1542 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
1543 {
1544 INT nyoff;
1545 INT x_offset_in_pixels;
1546 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
1547 es->line_height;
1548
1549 if (es->style & ES_MULTILINE)
1550 {
1551 x_offset_in_pixels = es->x_offset;
1552 }
1553 else
1554 {
1555 dy = 0;
1556 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
1557 }
1558
1559 if (-dx > x_offset_in_pixels)
1560 dx = -x_offset_in_pixels;
1561 if (dx > es->text_width - x_offset_in_pixels)
1562 dx = es->text_width - x_offset_in_pixels;
1563 nyoff = max(0, es->y_offset + dy);
1564 if (nyoff >= es->line_count - lines_per_page)
1565 nyoff = max(0, es->line_count - lines_per_page);
1566 dy = (es->y_offset - nyoff) * es->line_height;
1567 if (dx || dy) {
1568 RECT rc1;
1569 RECT rc;
1570
1571 es->y_offset = nyoff;
1572 if(es->style & ES_MULTILINE)
1573 es->x_offset += dx;
1574 else
1575 es->x_offset += dx / es->char_width;
1576
1577 GetClientRect(es->hwndSelf, &rc1);
1578 IntersectRect(&rc, &rc1, &es->format_rect);
1579 ScrollWindowEx(es->hwndSelf, -dx, dy,
1580 NULL, &rc, NULL, NULL, SW_INVALIDATE);
1581 /* force scroll info update */
1582 EDIT_UpdateScrollInfo(es);
1583 }
1584 if (dx && !(es->flags & EF_HSCROLL_TRACK))
1585 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
1586 if (dy && !(es->flags & EF_VSCROLL_TRACK))
1587 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
1588 return TRUE;
1589 }
1590
1591 /*********************************************************************
1592 *
1593 * EM_LINESCROLL
1594 *
1595 * NOTE: dx is in average character widths, dy - in lines;
1596 *
1597 */
1598 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
1599 {
1600 if (!(es->style & ES_MULTILINE))
1601 return FALSE;
1602
1603 dx *= es->char_width;
1604 return EDIT_EM_LineScroll_internal(es, dx, dy);
1605 }
1606
1607
1608 /*********************************************************************
1609 *
1610 * EM_SCROLL
1611 *
1612 */
1613 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
1614 {
1615 INT dy;
1616
1617 if (!(es->style & ES_MULTILINE))
1618 return (LRESULT)FALSE;
1619
1620 dy = 0;
1621
1622 switch (action) {
1623 case SB_LINEUP:
1624 if (es->y_offset)
1625 dy = -1;
1626 break;
1627 case SB_LINEDOWN:
1628 if (es->y_offset < es->line_count - 1)
1629 dy = 1;
1630 break;
1631 case SB_PAGEUP:
1632 if (es->y_offset)
1633 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
1634 break;
1635 case SB_PAGEDOWN:
1636 if (es->y_offset < es->line_count - 1)
1637 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1638 break;
1639 default:
1640 return (LRESULT)FALSE;
1641 }
1642 if (dy) {
1643 INT vlc = get_vertical_line_count(es);
1644 /* check if we are going to move too far */
1645 if(es->y_offset + dy > es->line_count - vlc)
1646 dy = es->line_count - vlc - es->y_offset;
1647
1648 /* Notification is done in EDIT_EM_LineScroll */
1649 if(dy)
1650 EDIT_EM_LineScroll(es, 0, dy);
1651 }
1652 return MAKELONG(dy, TRUE);
1653 }
1654
1655
1656 /*********************************************************************
1657 *
1658 * EDIT_SetCaretPos
1659 *
1660 */
1661 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
1662 BOOL after_wrap)
1663 {
1664 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
1665 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
1666 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
1667 }
1668
1669
1670 /*********************************************************************
1671 *
1672 * EM_SCROLLCARET
1673 *
1674 */
1675 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
1676 {
1677 if (es->style & ES_MULTILINE) {
1678 INT l;
1679 INT vlc;
1680 INT ww;
1681 INT cw = es->char_width;
1682 INT x;
1683 INT dy = 0;
1684 INT dx = 0;
1685
1686 l = EDIT_EM_LineFromChar(es, es->selection_end);
1687 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
1688 vlc = get_vertical_line_count(es);
1689 if (l >= es->y_offset + vlc)
1690 dy = l - vlc + 1 - es->y_offset;
1691 if (l < es->y_offset)
1692 dy = l - es->y_offset;
1693 ww = es->format_rect.right - es->format_rect.left;
1694 if (x < es->format_rect.left)
1695 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
1696 if (x > es->format_rect.right)
1697 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
1698 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1699 {
1700 /* check if we are going to move too far */
1701 if(es->x_offset + dx + ww > es->text_width)
1702 dx = es->text_width - ww - es->x_offset;
1703 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1704 EDIT_EM_LineScroll_internal(es, dx, dy);
1705 }
1706 } else {
1707 INT x;
1708 INT goal;
1709 INT format_width;
1710
1711 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1712 format_width = es->format_rect.right - es->format_rect.left;
1713 if (x < es->format_rect.left) {
1714 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
1715 do {
1716 es->x_offset--;
1717 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1718 } while ((x < goal) && es->x_offset);
1719 /* FIXME: use ScrollWindow() somehow to improve performance */
1720 EDIT_UpdateText(es, NULL, TRUE);
1721 } else if (x > es->format_rect.right) {
1722 INT x_last;
1723 INT len = get_text_length(es);
1724 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
1725 do {
1726 es->x_offset++;
1727 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1728 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
1729 } while ((x > goal) && (x_last > es->format_rect.right));
1730 /* FIXME: use ScrollWindow() somehow to improve performance */
1731 EDIT_UpdateText(es, NULL, TRUE);
1732 }
1733 }
1734
1735 if(es->flags & EF_FOCUSED)
1736 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
1737 }
1738
1739
1740 /*********************************************************************
1741 *
1742 * EDIT_MoveBackward
1743 *
1744 */
1745 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1746 {
1747 INT e = es->selection_end;
1748
1749 if (e) {
1750 e--;
1751 if ((es->style & ES_MULTILINE) && e &&
1752 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1753 e--;
1754 if (e && (es->text[e - 1] == '\r'))
1755 e--;
1756 }
1757 }
1758 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1759 EDIT_EM_ScrollCaret(es);
1760 }
1761
1762
1763 /*********************************************************************
1764 *
1765 * EDIT_MoveDown_ML
1766 *
1767 * Only for multi line controls
1768 * Move the caret one line down, on a column with the nearest
1769 * x coordinate on the screen (might be a different column).
1770 *
1771 */
1772 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1773 {
1774 INT s = es->selection_start;
1775 INT e = es->selection_end;
1776 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1777 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1778 INT x = (short)LOWORD(pos);
1779 INT y = (short)HIWORD(pos);
1780
1781 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1782 if (!extend)
1783 s = e;
1784 EDIT_EM_SetSel(es, s, e, after_wrap);
1785 EDIT_EM_ScrollCaret(es);
1786 }
1787
1788
1789 /*********************************************************************
1790 *
1791 * EDIT_MoveEnd
1792 *
1793 */
1794 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
1795 {
1796 BOOL after_wrap = FALSE;
1797 INT e;
1798
1799 /* Pass a high value in x to make sure of receiving the end of the line */
1800 if (!ctrl && (es->style & ES_MULTILINE))
1801 e = EDIT_CharFromPos(es, 0x3fffffff,
1802 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1803 else
1804 e = get_text_length(es);
1805 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1806 EDIT_EM_ScrollCaret(es);
1807 }
1808
1809
1810 /*********************************************************************
1811 *
1812 * EDIT_MoveForward
1813 *
1814 */
1815 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1816 {
1817 INT e = es->selection_end;
1818
1819 if (es->text[e]) {
1820 e++;
1821 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1822 if (es->text[e] == '\n')
1823 e++;
1824 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1825 e += 2;
1826 }
1827 }
1828 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1829 EDIT_EM_ScrollCaret(es);
1830 }
1831
1832
1833 /*********************************************************************
1834 *
1835 * EDIT_MoveHome
1836 *
1837 * Home key: move to beginning of line.
1838 *
1839 */
1840 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
1841 {
1842 INT e;
1843
1844 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1845 if (!ctrl && (es->style & ES_MULTILINE))
1846 e = EDIT_CharFromPos(es, -es->x_offset,
1847 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1848 else
1849 e = 0;
1850 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1851 EDIT_EM_ScrollCaret(es);
1852 }
1853
1854
1855 /*********************************************************************
1856 *
1857 * EDIT_MovePageDown_ML
1858 *
1859 * Only for multi line controls
1860 * Move the caret one page down, on a column with the nearest
1861 * x coordinate on the screen (might be a different column).
1862 *
1863 */
1864 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1865 {
1866 INT s = es->selection_start;
1867 INT e = es->selection_end;
1868 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1869 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1870 INT x = (short)LOWORD(pos);
1871 INT y = (short)HIWORD(pos);
1872
1873 e = EDIT_CharFromPos(es, x,
1874 y + (es->format_rect.bottom - es->format_rect.top),
1875 &after_wrap);
1876 if (!extend)
1877 s = e;
1878 EDIT_EM_SetSel(es, s, e, after_wrap);
1879 EDIT_EM_ScrollCaret(es);
1880 }
1881
1882
1883 /*********************************************************************
1884 *
1885 * EDIT_MovePageUp_ML
1886 *
1887 * Only for multi line controls
1888 * Move the caret one page up, on a column with the nearest
1889 * x coordinate on the screen (might be a different column).
1890 *
1891 */
1892 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1893 {
1894 INT s = es->selection_start;
1895 INT e = es->selection_end;
1896 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1897 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1898 INT x = (short)LOWORD(pos);
1899 INT y = (short)HIWORD(pos);
1900
1901 e = EDIT_CharFromPos(es, x,
1902 y - (es->format_rect.bottom - es->format_rect.top),
1903 &after_wrap);
1904 if (!extend)
1905 s = e;
1906 EDIT_EM_SetSel(es, s, e, after_wrap);
1907 EDIT_EM_ScrollCaret(es);
1908 }
1909
1910
1911 /*********************************************************************
1912 *
1913 * EDIT_MoveUp_ML
1914 *
1915 * Only for multi line controls
1916 * Move the caret one line up, on a column with the nearest
1917 * x coordinate on the screen (might be a different column).
1918 *
1919 */
1920 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1921 {
1922 INT s = es->selection_start;
1923 INT e = es->selection_end;
1924 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1925 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1926 INT x = (short)LOWORD(pos);
1927 INT y = (short)HIWORD(pos);
1928
1929 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1930 if (!extend)
1931 s = e;
1932 EDIT_EM_SetSel(es, s, e, after_wrap);
1933 EDIT_EM_ScrollCaret(es);
1934 }
1935
1936
1937 /*********************************************************************
1938 *
1939 * EDIT_MoveWordBackward
1940 *
1941 */
1942 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1943 {
1944 INT s = es->selection_start;
1945 INT e = es->selection_end;
1946 INT l;
1947 INT ll;
1948 INT li;
1949
1950 l = EDIT_EM_LineFromChar(es, e);
1951 ll = EDIT_EM_LineLength(es, e);
1952 li = EDIT_EM_LineIndex(es, l);
1953 if (e - li == 0) {
1954 if (l) {
1955 li = EDIT_EM_LineIndex(es, l - 1);
1956 e = li + EDIT_EM_LineLength(es, li);
1957 }
1958 } else {
1959 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
1960 }
1961 if (!extend)
1962 s = e;
1963 EDIT_EM_SetSel(es, s, e, FALSE);
1964 EDIT_EM_ScrollCaret(es);
1965 }
1966
1967
1968 /*********************************************************************
1969 *
1970 * EDIT_MoveWordForward
1971 *
1972 */
1973 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
1974 {
1975 INT s = es->selection_start;
1976 INT e = es->selection_end;
1977 INT l;
1978 INT ll;
1979 INT li;
1980
1981 l = EDIT_EM_LineFromChar(es, e);
1982 ll = EDIT_EM_LineLength(es, e);
1983 li = EDIT_EM_LineIndex(es, l);
1984 if (e - li == ll) {
1985 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
1986 e = EDIT_EM_LineIndex(es, l + 1);
1987 } else {
1988 e = li + EDIT_CallWordBreakProc(es,
1989 li, e - li + 1, ll, WB_RIGHT);
1990 }
1991 if (!extend)
1992 s = e;
1993 EDIT_EM_SetSel(es, s, e, FALSE);
1994 EDIT_EM_ScrollCaret(es);
1995 }
1996
1997
1998 /*********************************************************************
1999 *
2000 * EDIT_PaintText
2001 *
2002 */
2003 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2004 {
2005 COLORREF BkColor;
2006 COLORREF TextColor;
2007 LOGFONTW underline_font;
2008 HFONT hUnderline = 0;
2009 HFONT old_font = 0;
2010 INT ret;
2011 INT li;
2012 INT BkMode;
2013 SIZE size;
2014
2015 if (!count)
2016 return 0;
2017 BkMode = GetBkMode(dc);
2018 BkColor = GetBkColor(dc);
2019 TextColor = GetTextColor(dc);
2020 if (rev) {
2021 if (es->composition_len == 0)
2022 {
2023 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2024 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2025 SetBkMode( dc, OPAQUE);
2026 }
2027 else
2028 {
2029 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2030 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2031 underline_font.lfUnderline = TRUE;
2032 hUnderline = CreateFontIndirectW(&underline_font);
2033 old_font = SelectObject(dc,hUnderline);
2034 }
2035 }
2036 li = EDIT_EM_LineIndex(es, line);
2037 if (es->style & ES_MULTILINE) {
2038 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2039 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2040 } else {
2041 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2042 TextOutW(dc, x, y, text + li + col, count);
2043 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2044 ret = size.cx;
2045 if (es->style & ES_PASSWORD)
2046 HeapFree(GetProcessHeap(), 0, text);
2047 }
2048 if (rev) {
2049 if (es->composition_len == 0)
2050 {
2051 SetBkColor(dc, BkColor);
2052 SetTextColor(dc, TextColor);
2053 SetBkMode( dc, BkMode);
2054 }
2055 else
2056 {
2057 if (old_font)
2058 SelectObject(dc,old_font);
2059 if (hUnderline)
2060 DeleteObject(hUnderline);
2061 }
2062 }
2063 return ret;
2064 }
2065
2066
2067 /*********************************************************************
2068 *
2069 * EDIT_PaintLine
2070 *
2071 */
2072 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2073 {
2074 INT s = es->selection_start;
2075 INT e = es->selection_end;
2076 INT li;
2077 INT ll;
2078 INT x;
2079 INT y;
2080 LRESULT pos;
2081
2082 if (es->style & ES_MULTILINE) {
2083 INT vlc = get_vertical_line_count(es);
2084
2085 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2086 return;
2087 } else if (line)
2088 return;
2089
2090 TRACE("line=%d\n", line);
2091
2092 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2093 x = (short)LOWORD(pos);
2094 y = (short)HIWORD(pos);
2095 li = EDIT_EM_LineIndex(es, line);
2096 ll = EDIT_EM_LineLength(es, li);
2097 s = min(es->selection_start, es->selection_end);
2098 e = max(es->selection_start, es->selection_end);
2099 s = min(li + ll, max(li, s));
2100 e = min(li + ll, max(li, e));
2101 if (rev && (s != e) &&
2102 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2103 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2104 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2105 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2106 } else
2107 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2108 }
2109
2110
2111 /*********************************************************************
2112 *
2113 * EDIT_AdjustFormatRect
2114 *
2115 * Adjusts the format rectangle for the current font and the
2116 * current client rectangle.
2117 *
2118 */
2119 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2120 {
2121 RECT ClientRect;
2122
2123 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2124 if (es->style & ES_MULTILINE)
2125 {
2126 INT fw, vlc, max_x_offset, max_y_offset;
2127
2128 vlc = get_vertical_line_count(es);
2129 es->format_rect.bottom = es->format_rect.top + vlc * es->line_height;
2130
2131 /* correct es->x_offset */
2132 fw = es->format_rect.right - es->format_rect.left;
2133 max_x_offset = es->text_width - fw;
2134 if(max_x_offset < 0) max_x_offset = 0;
2135 if(es->x_offset > max_x_offset)
2136 es->x_offset = max_x_offset;
2137
2138 /* correct es->y_offset */
2139 max_y_offset = es->line_count - vlc;
2140 if(max_y_offset < 0) max_y_offset = 0;
2141 if(es->y_offset > max_y_offset)
2142 es->y_offset = max_y_offset;
2143
2144 /* force scroll info update */
2145 EDIT_UpdateScrollInfo(es);
2146 }
2147 else
2148 /* Windows doesn't care to fix text placement for SL controls */
2149 es->format_rect.bottom = es->format_rect.top + es->line_height;
2150
2151 /* Always stay within the client area */
2152 GetClientRect(es->hwndSelf, &ClientRect);
2153 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2154
2155 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2156 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2157
2158 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2159 }
2160
2161
2162 /*********************************************************************
2163 *
2164 * EDIT_SetRectNP
2165 *
2166 * note: this is not (exactly) the handler called on EM_SETRECTNP
2167 * it is also used to set the rect of a single line control
2168 *
2169 */
2170 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2171 {
2172 LONG_PTR ExStyle;
2173 INT bw, bh;
2174 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2175
2176 CopyRect(&es->format_rect, rc);
2177
2178 if (ExStyle & WS_EX_CLIENTEDGE) {
2179 es->format_rect.left++;
2180 es->format_rect.right--;
2181
2182 if (es->format_rect.bottom - es->format_rect.top
2183 >= es->line_height + 2)
2184 {
2185 es->format_rect.top++;
2186 es->format_rect.bottom--;
2187 }
2188 }
2189 else if (es->style & WS_BORDER) {
2190 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2191 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2192 es->format_rect.left += bw;
2193 es->format_rect.right -= bw;
2194 if (es->format_rect.bottom - es->format_rect.top
2195 >= es->line_height + 2 * bh)
2196 {
2197 es->format_rect.top += bh;
2198 es->format_rect.bottom -= bh;
2199 }
2200 }
2201
2202 es->format_rect.left += es->left_margin;
2203 es->format_rect.right -= es->right_margin;
2204 EDIT_AdjustFormatRect(es);
2205 }
2206
2207
2208 /*********************************************************************
2209 *
2210 * EM_CHARFROMPOS
2211 *
2212 * returns line number (not index) in high-order word of result.
2213 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2214 * to Richedit, not to the edit control. Original documentation is valid.
2215 * FIXME: do the specs mean to return -1 if outside client area or
2216 * if outside formatting rectangle ???
2217 *
2218 */
2219 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2220 {
2221 POINT pt;
2222 RECT rc;
2223 INT index;
2224
2225 pt.x = x;
2226 pt.y = y;
2227 GetClientRect(es->hwndSelf, &rc);
2228 if (!PtInRect(&rc, pt))
2229 return -1;
2230
2231 index = EDIT_CharFromPos(es, x, y, NULL);
2232 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2233 }
2234
2235
2236 /*********************************************************************
2237 *
2238 * EM_FMTLINES
2239 *
2240 * Enable or disable soft breaks.
2241 *
2242 * This means: insert or remove the soft linebreak character (\r\r\n).
2243 * Take care to check if the text still fits the buffer after insertion.
2244 * If not, notify with EN_ERRSPACE.
2245 *
2246 */
2247 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2248 {
2249 es->flags &= ~EF_USE_SOFTBRK;
2250 if (add_eol) {
2251 es->flags |= EF_USE_SOFTBRK;
2252 FIXME("soft break enabled, not implemented\n");
2253 }
2254 return add_eol;
2255 }
2256
2257
2258 /*********************************************************************
2259 *
2260 * EM_GETHANDLE
2261 *
2262 * Hopefully this won't fire back at us.
2263 * We always start with a fixed buffer in the local heap.
2264 * Despite of the documentation says that the local heap is used
2265 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2266 * buffer on the local heap.
2267 *
2268 */
2269 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2270 {
2271 HLOCAL hLocal;
2272
2273 if (!(es->style & ES_MULTILINE))
2274 return 0;
2275
2276 if(es->is_unicode)
2277 hLocal = es->hloc32W;
2278 else
2279 {
2280 if(!es->hloc32A)
2281 {
2282 CHAR *textA;
2283 UINT countA, alloc_size;
2284 TRACE("Allocating 32-bit ANSI alias buffer\n");
2285 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2286 alloc_size = ROUND_TO_GROW(countA);
2287 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2288 {
2289 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2290 return 0;
2291 }
2292 textA = LocalLock(es->hloc32A);
2293 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2294 LocalUnlock(es->hloc32A);
2295 }
2296 hLocal = es->hloc32A;
2297 }
2298
2299 es->flags |= EF_APP_HAS_HANDLE;
2300 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2301 return hLocal;
2302 }
2303
2304
2305 /*********************************************************************
2306 *
2307 * EM_GETLINE
2308 *
2309 */
2310 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2311 {
2312 LPWSTR src;
2313 INT line_len, dst_len;
2314 INT i;
2315
2316 if (es->style & ES_MULTILINE) {
2317 if (line >= es->line_count)
2318 return 0;
2319 } else
2320 line = 0;
2321 i = EDIT_EM_LineIndex(es, line);
2322 src = es->text + i;
2323 line_len = EDIT_EM_LineLength(es, i);
2324 dst_len = *(WORD *)dst;
2325 if(unicode)
2326 {
2327 if(dst_len <= line_len)
2328 {
2329 memcpy(dst, src, dst_len * sizeof(WCHAR));
2330 return dst_len;
2331 }
2332 else /* Append 0 if enough space */
2333 {
2334 memcpy(dst, src, line_len * sizeof(WCHAR));
2335 dst[line_len] = 0;
2336 return line_len;
2337 }
2338 }
2339 else
2340 {
2341 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2342 if(!ret && line_len) /* Insufficient buffer size */
2343 return dst_len;
2344 if(ret < dst_len) /* Append 0 if enough space */
2345 ((LPSTR)dst)[ret] = 0;
2346 return ret;
2347 }
2348 }
2349
2350
2351 /*********************************************************************
2352 *
2353 * EM_GETSEL
2354 *
2355 */
2356 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2357 {
2358 UINT s = es->selection_start;
2359 UINT e = es->selection_end;
2360
2361 ORDER_UINT(s, e);
2362 if (start)
2363 *start = s;
2364 if (end)
2365 *end = e;
2366 return MAKELONG(s, e);
2367 }
2368
2369
2370 /*********************************************************************
2371 *
2372 * EM_REPLACESEL
2373 *
2374 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2375 *
2376 */
2377 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2378 {
2379 UINT strl = strlenW(lpsz_replace);
2380 UINT tl = get_text_length(es);
2381 UINT utl;
2382 UINT s;
2383 UINT e;
2384 UINT i;
2385 UINT size;
2386 LPWSTR p;
2387 HRGN hrgn = 0;
2388 LPWSTR buf = NULL;
2389 UINT bufl = 0;
2390
2391 TRACE("%s, can_undo %d, send_update %d\n",
2392 debugstr_w(lpsz_replace), can_undo, send_update);
2393
2394 s = es->selection_start;
2395 e = es->selection_end;
2396
2397 if ((s == e) && !strl)
2398 return;
2399
2400 ORDER_UINT(s, e);
2401
2402 size = tl - (e - s) + strl;
2403 if (!size)
2404 es->text_width = 0;
2405
2406 /* Issue the EN_MAXTEXT notification and continue with replacing text
2407 * such that buffer limit is honored. */
2408 if ((honor_limit) && (size > es->buffer_limit)) {
2409 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2410 /* Buffer limit can be smaller than the actual length of text in combobox */
2411 if (es->buffer_limit < (tl - (e-s)))
2412 strl = 0;
2413 else
2414 strl = es->buffer_limit - (tl - (e-s));
2415 }
2416
2417 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2418 return;
2419
2420 if (e != s) {
2421 /* there is something to be deleted */
2422 TRACE("deleting stuff.\n");
2423 bufl = e - s;
2424 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
2425 if (!buf) return;
2426 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
2427 buf[bufl] = 0; /* ensure 0 termination */
2428 /* now delete */
2429 strcpyW(es->text + s, es->text + e);
2430 text_buffer_changed(es);
2431 }
2432 if (strl) {
2433 /* there is an insertion */
2434 tl = get_text_length(es);
2435 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));
2436 for (p = es->text + tl ; p >= es->text + s ; p--)
2437 p[strl] = p[0];
2438 for (i = 0 , p = es->text + s ; i < strl ; i++)
2439 p[i] = lpsz_replace[i];
2440 if(es->style & ES_UPPERCASE)
2441 CharUpperBuffW(p, strl);
2442 else if(es->style & ES_LOWERCASE)
2443 CharLowerBuffW(p, strl);
2444 text_buffer_changed(es);
2445 }
2446 if (es->style & ES_MULTILINE)
2447 {
2448 INT st = min(es->selection_start, es->selection_end);
2449 INT vlc = get_vertical_line_count(es);
2450
2451 hrgn = CreateRectRgn(0, 0, 0, 0);
2452 EDIT_BuildLineDefs_ML(es, st, st + strl,
2453 strl - abs(es->selection_end - es->selection_start), hrgn);
2454 /* if text is too long undo all changes */
2455 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
2456 if (strl)
2457 strcpyW(es->text + e, es->text + e + strl);
2458 if (e != s)
2459 for (i = 0 , p = es->text ; i < e - s ; i++)
2460 p[i + s] = buf[i];
2461 text_buffer_changed(es);
2462 EDIT_BuildLineDefs_ML(es, s, e,
2463 abs(es->selection_end - es->selection_start) - strl, hrgn);
2464 strl = 0;
2465 e = s;
2466 hrgn = CreateRectRgn(0, 0, 0, 0);
2467 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2468 }
2469 }
2470 else {
2471 INT fw = es->format_rect.right - es->format_rect.left;
2472 EDIT_CalcLineWidth_SL(es);
2473 /* remove chars that don't fit */
2474 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
2475 while ((es->text_width > fw) && s + strl >= s) {
2476 strcpyW(es->text + s + strl - 1, es->text + s + strl);
2477 strl--;
2478 EDIT_CalcLineWidth_SL(es);
2479 }
2480 text_buffer_changed(es);
2481 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2482 }
2483 }
2484
2485 if (e != s) {
2486 if (can_undo) {
2487 utl = strlenW(es->undo_text);
2488 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2489 /* undo-buffer is extended to the right */
2490 EDIT_MakeUndoFit(es, utl + e - s);
2491 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
2492 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2493 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2494 /* undo-buffer is extended to the left */
2495 EDIT_MakeUndoFit(es, utl + e - s);
2496 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2497 p[e - s] = p[0];
2498 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2499 p[i] = buf[i];
2500 es->undo_position = s;
2501 } else {
2502 /* new undo-buffer */
2503 EDIT_MakeUndoFit(es, e - s);
2504 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
2505 es->undo_text[e - s] = 0; /* ensure 0 termination */
2506 es->undo_position = s;
2507 }
2508 /* any deletion makes the old insertion-undo invalid */
2509 es->undo_insert_count = 0;
2510 } else
2511 EDIT_EM_EmptyUndoBuffer(es);
2512 }
2513 if (strl) {
2514 if (can_undo) {
2515 if ((s == es->undo_position) ||
2516 ((es->undo_insert_count) &&
2517 (s == es->undo_position + es->undo_insert_count)))
2518 /*
2519 * insertion is new and at delete position or
2520 * an extension to either left or right
2521 */
2522 es->undo_insert_count += strl;
2523 else {
2524 /* new insertion undo */
2525 es->undo_position = s;
2526 es->undo_insert_count = strl;
2527 /* new insertion makes old delete-buffer invalid */
2528 *es->undo_text = '\0';
2529 }
2530 } else
2531 EDIT_EM_EmptyUndoBuffer(es);
2532 }
2533
2534 if (bufl)
2535 HeapFree(GetProcessHeap(), 0, buf);
2536
2537 s += strl;
2538
2539 /* If text has been deleted and we're right or center aligned then scroll rightward */
2540 if (es->style & (ES_RIGHT | ES_CENTER))
2541 {
2542 INT delta = strl - abs(es->selection_end - es->selection_start);
2543
2544 if (delta < 0 && es->x_offset)
2545 {
2546 if (abs(delta) > es->x_offset)
2547 es->x_offset = 0;
2548 else
2549 es->x_offset += delta;
2550 }
2551 }
2552
2553 EDIT_EM_SetSel(es, s, s, FALSE);
2554 es->flags |= EF_MODIFIED;
2555 if (send_update) es->flags |= EF_UPDATE;
2556 if (hrgn)
2557 {
2558 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2559 DeleteObject(hrgn);
2560 }
2561 else
2562 EDIT_UpdateText(es, NULL, TRUE);
2563
2564 EDIT_EM_ScrollCaret(es);
2565
2566 /* force scroll info update */
2567 EDIT_UpdateScrollInfo(es);
2568
2569
2570 if(send_update || (es->flags & EF_UPDATE))
2571 {
2572 es->flags &= ~EF_UPDATE;
2573 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2574 }
2575 }
2576
2577
2578 /*********************************************************************
2579 *
2580 * EM_SETHANDLE
2581 *
2582 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
2583 *
2584 */
2585 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
2586 {
2587 if (!(es->style & ES_MULTILINE))
2588 return;
2589
2590 if (!hloc) {
2591 WARN("called with NULL handle\n");
2592 return;
2593 }
2594
2595 EDIT_UnlockBuffer(es, TRUE);
2596
2597 if(es->is_unicode)
2598 {
2599 if(es->hloc32A)
2600 {
2601 LocalFree(es->hloc32A);
2602 es->hloc32A = NULL;
2603 }
2604 es->hloc32W = hloc;
2605 }
2606 else
2607 {
2608 INT countW, countA;
2609 HLOCAL hloc32W_new;
2610 WCHAR *textW;
2611 CHAR *textA;
2612
2613 countA = LocalSize(hloc);
2614 textA = LocalLock(hloc);
2615 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
2616 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
2617 {
2618 ERR("Could not allocate new unicode buffer\n");
2619 return;
2620 }
2621 textW = LocalLock(hloc32W_new);
2622 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
2623 LocalUnlock(hloc32W_new);
2624 LocalUnlock(hloc);
2625
2626 if(es->hloc32W)
2627 LocalFree(es->hloc32W);
2628
2629 es->hloc32W = hloc32W_new;
2630 es->hloc32A = hloc;
2631 }
2632
2633 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
2634
2635 es->flags |= EF_APP_HAS_HANDLE;
2636 EDIT_LockBuffer(es);
2637
2638 es->x_offset = es->y_offset = 0;
2639 es->selection_start = es->selection_end = 0;
2640 EDIT_EM_EmptyUndoBuffer(es);
2641 es->flags &= ~EF_MODIFIED;
2642 es->flags &= ~EF_UPDATE;
2643 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2644 EDIT_UpdateText(es, NULL, TRUE);
2645 EDIT_EM_ScrollCaret(es);
2646 /* force scroll info update */
2647 EDIT_UpdateScrollInfo(es);
2648 }
2649
2650
2651 /*********************************************************************
2652 *
2653 * EM_SETLIMITTEXT
2654 *
2655 * NOTE: this version currently implements WinNT limits
2656 *
2657 */
2658 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
2659 {
2660 if (!limit) limit = ~0u;
2661 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
2662 es->buffer_limit = limit;
2663 }
2664
2665
2666 /*********************************************************************
2667 *
2668 * EM_SETMARGINS
2669 *
2670 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
2671 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
2672 * margin according to the textmetrics of the current font.
2673 *
2674 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
2675 * of the char's width as the margin, but this is not how Windows handles this.
2676 * For all other fonts Windows sets the margins to zero.
2677 *
2678 * FIXME - When EC_USEFONTINFO is used the margins only change if the
2679 * edit control is equal to or larger than a certain size.
2680 * Interestingly if one subtracts both the left and right margins from
2681 * this size one always seems to get an even number. The extents of
2682 * the (four character) string "'**'" match this quite closely, so
2683 * we'll use this until we come up with a better idea.
2684 */
2685 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
2686 {
2687 WCHAR magic_string[] = {'\'','*','*','\'', 0};
2688 SIZE sz;
2689
2690 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
2691 return sz.cx + left + right;
2692 }
2693
2694 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
2695 WORD left, WORD right, BOOL repaint)
2696 {
2697 TEXTMETRICW tm;
2698 INT default_left_margin = 0; /* in pixels */
2699 INT default_right_margin = 0; /* in pixels */
2700
2701 /* Set the default margins depending on the font */
2702 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
2703 HDC dc = GetDC(es->hwndSelf);
2704 HFONT old_font = SelectObject(dc, es->font);
2705 GetTextMetricsW(dc, &tm);
2706 /* The default margins are only non zero for TrueType or Vector fonts */
2707 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
2708 int min_size;
2709 RECT rc;
2710 /* This must be calculated more exactly! But how? */
2711 default_left_margin = tm.tmAveCharWidth / 2;
2712 default_right_margin = tm.tmAveCharWidth / 2;
2713 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
2714 GetClientRect(es->hwndSelf, &rc);
2715 if(rc.right - rc.left < min_size) {
2716 default_left_margin = es->left_margin;
2717 default_right_margin = es->right_margin;
2718 }
2719 }
2720 SelectObject(dc, old_font);
2721 ReleaseDC(es->hwndSelf, dc);
2722 }
2723
2724 if (action & EC_LEFTMARGIN) {
2725 es->format_rect.left -= es->left_margin;
2726 if (left != EC_USEFONTINFO)
2727 es->left_margin = left;
2728 else
2729 es->left_margin = default_left_margin;
2730 es->format_rect.left += es->left_margin;
2731 }
2732
2733 if (action & EC_RIGHTMARGIN) {
2734 es->format_rect.right += es->right_margin;
2735 if (right != EC_USEFONTINFO)
2736 es->right_margin = right;
2737 else
2738 es->right_margin = default_right_margin;
2739 es->format_rect.right -= es->right_margin;
2740 }
2741
2742 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
2743 EDIT_AdjustFormatRect(es);
2744 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
2745 }
2746
2747 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
2748 }
2749
2750
2751 /*********************************************************************
2752 *
2753 * EM_SETPASSWORDCHAR
2754 *
2755 */
2756 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
2757 {
2758 LONG style;
2759
2760 if (es->style & ES_MULTILINE)
2761 return;
2762
2763 if (es->password_char == c)
2764 return;
2765
2766 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
2767 es->password_char = c;
2768 if (c) {
2769 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
2770 es->style |= ES_PASSWORD;
2771 } else {
2772 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
2773 es->style &= ~ES_PASSWORD;
2774 }
2775 EDIT_UpdateText(es, NULL, TRUE);
2776 }
2777
2778
2779 /*********************************************************************
2780 *
2781 * EM_SETTABSTOPS
2782 *
2783 */
2784 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
2785 {
2786 if (!(es->style & ES_MULTILINE))
2787 return FALSE;
2788 HeapFree(GetProcessHeap(), 0, es->tabs);
2789 es->tabs_count = count;
2790 if (!count)
2791 es->tabs = NULL;
2792 else {
2793 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
2794 memcpy(es->tabs, tabs, count * sizeof(INT));
2795 }
2796 return TRUE;
2797 }
2798
2799
2800 /*********************************************************************
2801 *
2802 * EM_SETWORDBREAKPROC
2803 *
2804 */
2805 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
2806 {
2807 if (es->word_break_proc == wbp)
2808 return;
2809
2810 es->word_break_proc = wbp;
2811
2812 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
2813 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2814 EDIT_UpdateText(es, NULL, TRUE);
2815 }
2816 }
2817
2818
2819 /*********************************************************************
2820 *
2821 * EM_UNDO / WM_UNDO
2822 *
2823 */
2824 static BOOL EDIT_EM_Undo(EDITSTATE *es)
2825 {
2826 INT ulength;
2827 LPWSTR utext;
2828
2829 /* As per MSDN spec, for a single-line edit control,
2830 the return value is always TRUE */
2831 if( es->style & ES_READONLY )
2832 return !(es->style & ES_MULTILINE);
2833
2834 ulength = strlenW(es->undo_text);
2835
2836 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
2837
2838 strcpyW(utext, es->undo_text);
2839
2840 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
2841 es->undo_insert_count, debugstr_w(utext));
2842
2843 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2844 EDIT_EM_EmptyUndoBuffer(es);
2845 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
2846 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2847 /* send the notification after the selection start and end are set */
2848 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2849 EDIT_EM_ScrollCaret(es);
2850 HeapFree(GetProcessHeap(), 0, utext);
2851
2852 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
2853 es->undo_insert_count, debugstr_w(es->undo_text));
2854 return TRUE;
2855 }
2856
2857
2858 /* Helper function for WM_CHAR
2859 *
2860 * According to an MSDN blog article titled "Just because you're a control
2861 * doesn't mean that you're necessarily inside a dialog box," multiline edit
2862 * controls without ES_WANTRETURN would attempt to detect whether it is inside
2863 * a dialog box or not.
2864 */
2865 static inline BOOL EDIT_IsInsideDialog(EDITSTATE *es)
2866 {
2867 return (es->flags & EF_DIALOGMODE);
2868 }
2869
2870
2871 /*********************************************************************
2872 *
2873 * WM_PASTE
2874 *
2875 */
2876 static void EDIT_WM_Paste(EDITSTATE *es)
2877 {
2878 HGLOBAL hsrc;
2879 LPWSTR src;
2880
2881 /* Protect read-only edit control from modification */
2882 if(es->style & ES_READONLY)
2883 return;
2884
2885 OpenClipboard(es->hwndSelf);
2886 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
2887 src = GlobalLock(hsrc);
2888 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
2889 GlobalUnlock(hsrc);
2890 }
2891 else if (es->style & ES_PASSWORD) {
2892 /* clear selected text in password edit box even with empty clipboard */
2893 const WCHAR empty_strW[] = { 0 };
2894 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
2895 }
2896 CloseClipboard();
2897 }
2898
2899
2900 /*********************************************************************
2901 *
2902 * WM_COPY
2903 *
2904 */
2905 static void EDIT_WM_Copy(EDITSTATE *es)
2906 {
2907 INT s = min(es->selection_start, es->selection_end);
2908 INT e = max(es->selection_start, es->selection_end);
2909 HGLOBAL hdst;
2910 LPWSTR dst;
2911 DWORD len;
2912
2913 if (e == s) return;
2914
2915 len = e - s;
2916 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
2917 dst = GlobalLock(hdst);
2918 memcpy(dst, es->text + s, len * sizeof(WCHAR));
2919 dst[len] = 0; /* ensure 0 termination */
2920 TRACE("%s\n", debugstr_w(dst));
2921 GlobalUnlock(hdst);
2922 OpenClipboard(es->hwndSelf);
2923 EmptyClipboard();
2924 SetClipboardData(CF_UNICODETEXT, hdst);
2925 CloseClipboard();
2926 }
2927
2928
2929 /*********************************************************************
2930 *
2931 * WM_CLEAR
2932 *
2933 */
2934 static inline void EDIT_WM_Clear(EDITSTATE *es)
2935 {
2936 static const WCHAR empty_stringW[] = {0};
2937
2938 /* Protect read-only edit control from modification */
2939 if(es->style & ES_READONLY)
2940 return;
2941
2942 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
2943 }
2944
2945
2946 /*********************************************************************
2947 *
2948 * WM_CUT
2949 *
2950 */
2951 static inline void EDIT_WM_Cut(EDITSTATE *es)
2952 {
2953 EDIT_WM_Copy(es);
2954 EDIT_WM_Clear(es);
2955 }
2956
2957
2958 /*********************************************************************
2959 *
2960 * WM_CHAR
2961 *
2962 */
2963 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
2964 {
2965 BOOL control;
2966
2967 control = GetKeyState(VK_CONTROL) & 0x8000;
2968
2969 switch (c) {
2970 case '\r':
2971 /* If it's not a multiline edit box, it would be ignored below.
2972 * For multiline edit without ES_WANTRETURN, we have to make a
2973 * special case.
2974 */
2975 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
2976 if (EDIT_IsInsideDialog(es))
2977 break;
2978 case '\n':
2979 if (es->style & ES_MULTILINE) {
2980 if (es->style & ES_READONLY) {
2981 EDIT_MoveHome(es, FALSE, FALSE);
2982 EDIT_MoveDown_ML(es, FALSE);
2983 } else {
2984 static const WCHAR cr_lfW[] = {'\r','\n',0};
2985 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
2986 }
2987 }
2988 break;
2989 case '\t':
2990 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
2991 {
2992 static const WCHAR tabW[] = {'\t',0};
2993 if (EDIT_IsInsideDialog(es))
2994 break;
2995 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
2996 }
2997 break;
2998 case VK_BACK:
2999 if (!(es->style & ES_READONLY) && !control) {
3000 if (es->selection_start != es->selection_end)
3001 EDIT_WM_Clear(es);
3002 else {
3003 /* delete character left of caret */
3004 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3005 EDIT_MoveBackward(es, TRUE);
3006 EDIT_WM_Clear(es);
3007 }
3008 }
3009 break;
3010 case 0x03: /* ^C */
3011 if (!(es->style & ES_PASSWORD))
3012 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3013 break;
3014 case 0x16: /* ^V */
3015 if (!(es->style & ES_READONLY))
3016 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3017 break;
3018 case 0x18: /* ^X */
3019 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
3020 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3021 break;
3022 case 0x1A: /* ^Z */
3023 if (!(es->style & ES_READONLY))
3024 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3025 break;
3026
3027 default:
3028 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3029 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3030 break;
3031
3032 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3033 WCHAR str[2];
3034 str[0] = c;
3035 str[1] = '\0';
3036 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3037 }
3038 break;
3039 }
3040 return 1;
3041 }
3042
3043
3044 /*********************************************************************
3045 *
3046 * WM_COMMAND
3047 *
3048 */
3049 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3050 {
3051 if (code || control)
3052 return;
3053
3054 switch (id) {
3055 case EM_UNDO:
3056 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3057 break;
3058 case WM_CUT:
3059 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3060 break;
3061 case WM_COPY:
3062 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3063 break;
3064 case WM_PASTE:
3065 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3066 break;
3067 case WM_CLEAR:
3068 SendMessageW(es->hwndSelf, WM_CLEAR, 0, 0);
3069 break;
3070 case EM_SETSEL:
3071 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3072 EDIT_EM_ScrollCaret(es);
3073 break;
3074 default:
3075 ERR("unknown menu item, please report\n");
3076 break;
3077 }
3078 }
3079
3080
3081 /*********************************************************************
3082 *
3083 * WM_CONTEXTMENU
3084 *
3085 * Note: the resource files resource/sysres_??.rc cannot define a
3086 * single popup menu. Hence we use a (dummy) menubar
3087 * containing the single popup menu as its first item.
3088 *
3089 * FIXME: the message identifiers have been chosen arbitrarily,
3090 * hence we use MF_BYPOSITION.
3091 * We might as well use the "real" values (anybody knows ?)
3092 * The menu definition is in resources/sysres_??.rc.
3093 * Once these are OK, we better use MF_BYCOMMAND here
3094 * (as we do in EDIT_WM_Command()).
3095 *
3096 */
3097 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3098 {
3099 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3100 HMENU popup = GetSubMenu(menu, 0);
3101 UINT start = es->selection_start;
3102 UINT end = es->selection_end;
3103
3104 ORDER_UINT(start, end);
3105
3106 /* undo */
3107 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3108 /* cut */
3109 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3110 /* copy */
3111 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3112 /* paste */
3113 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3114 /* delete */
3115 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3116 /* select all */
3117 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
3118
3119 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
3120 {
3121 RECT rc;
3122 /* Windows places the menu at the edit's center in this case */
3123 GetClientRect(es->hwndSelf, &rc);
3124 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
3125 x = rc.left + (rc.right - rc.left) / 2;
3126 y = rc.top + (rc.bottom - rc.top) / 2;
3127 }
3128
3129 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3130 DestroyMenu(menu);
3131 }
3132
3133
3134 /*********************************************************************
3135 *
3136 * WM_GETTEXT
3137 *
3138 */
3139 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
3140 {
3141 if(!count) return 0;
3142
3143 if(unicode)
3144 {
3145 lstrcpynW(dst, es->text, count);
3146 return strlenW(dst);
3147 }
3148 else
3149 {
3150 LPSTR textA = (LPSTR)dst;
3151 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3152 textA[count - 1] = 0; /* ensure 0 termination */
3153 return strlen(textA);
3154 }
3155 }
3156
3157 /*********************************************************************
3158 *
3159 * EDIT_CheckCombo
3160 *
3161 */
3162 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
3163 {
3164 HWND hLBox = es->hwndListBox;
3165 HWND hCombo;
3166 BOOL bDropped;
3167 int nEUI;
3168
3169 if (!hLBox)
3170 return FALSE;
3171
3172 hCombo = GetParent(es->hwndSelf);
3173 bDropped = TRUE;
3174 nEUI = 0;
3175
3176 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
3177
3178 if (key == VK_UP || key == VK_DOWN)
3179 {
3180 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
3181 nEUI = 1;
3182
3183 if (msg == WM_KEYDOWN || nEUI)
3184 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
3185 }
3186
3187 switch (msg)
3188 {
3189 case WM_KEYDOWN:
3190 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
3191 {
3192 /* make sure ComboLBox pops up */
3193 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
3194 key = VK_F4;
3195 nEUI = 2;
3196 }
3197
3198 SendMessageW(hLBox, WM_KEYDOWN, key, 0);
3199 break;
3200
3201 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
3202 if (nEUI)
3203 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
3204 else
3205 SendMessageW(hLBox, WM_KEYDOWN, VK_F4, 0);
3206 break;
3207 }
3208
3209 if(nEUI == 2)
3210 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
3211
3212 return TRUE;
3213 }
3214
3215
3216 /*********************************************************************
3217 *
3218 * WM_KEYDOWN
3219 *
3220 * Handling of special keys that don't produce a WM_CHAR
3221 * (i.e. non-printable keys) & Backspace & Delete
3222 *
3223 */
3224 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
3225 {
3226 BOOL shift;
3227 BOOL control;
3228
3229 if (GetKeyState(VK_MENU) & 0x8000)
3230 return 0;
3231
3232 shift = GetKeyState(VK_SHIFT) & 0x8000;
3233 control = GetKeyState(VK_CONTROL) & 0x8000;
3234
3235 switch (key) {
3236 case VK_F4:
3237 case VK_UP:
3238 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
3239 break;
3240
3241 /* fall through */
3242 case VK_LEFT:
3243 if ((es->style & ES_MULTILINE) && (key == VK_UP))
3244 EDIT_MoveUp_ML(es, shift);
3245 else
3246 if (control)
3247 EDIT_MoveWordBackward(es, shift);
3248 else
3249 EDIT_MoveBackward(es, shift);
3250 break;
3251 case VK_DOWN:
3252 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
3253 break;
3254 /* fall through */
3255 case VK_RIGHT:
3256 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
3257 EDIT_MoveDown_ML(es, shift);
3258 else if (control)
3259 EDIT_MoveWordForward(es, shift);
3260 else
3261 EDIT_MoveForward(es, shift);
3262 break;
3263 case VK_HOME:
3264 EDIT_MoveHome(es, shift, control);
3265 break;
3266 case VK_END:
3267 EDIT_MoveEnd(es, shift, control);
3268 break;
3269 case VK_PRIOR:
3270 if (es->style & ES_MULTILINE)
3271 EDIT_MovePageUp_ML(es, shift);
3272 else
3273 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3274 break;
3275 case VK_NEXT:
3276 if (es->style & ES_MULTILINE)
3277 EDIT_MovePageDown_ML(es, shift);
3278 else
3279 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3280 break;
3281 case VK_DELETE:
3282 if (!(es->style & ES_READONLY) && !(shift && control)) {
3283 if (es->selection_start != es->selection_end) {
3284 if (shift)
3285 EDIT_WM_Cut(es);
3286 else
3287 EDIT_WM_Clear(es);
3288 } else {
3289 if (shift) {
3290 /* delete character left of caret */
3291 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3292 EDIT_MoveBackward(es, TRUE);
3293 EDIT_WM_Clear(es);
3294 } else if (control) {
3295 /* delete to end of line */
3296 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3297 EDIT_MoveEnd(es, TRUE, FALSE);
3298 EDIT_WM_Clear(es);
3299 } else {
3300 /* delete character right of caret */
3301 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3302 EDIT_MoveForward(es, TRUE);
3303 EDIT_WM_Clear(es);
3304 }
3305 }
3306 }
3307 break;
3308 case VK_INSERT:
3309 if (shift) {
3310 if (!(es->style & ES_READONLY))
3311 EDIT_WM_Paste(es);
3312 } else if (control)
3313 EDIT_WM_Copy(es);
3314 break;
3315 case VK_RETURN:
3316 /* If the edit doesn't want the return send a message to the default object */
3317 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
3318 {
3319 DWORD dw;
3320
3321 if (!EDIT_IsInsideDialog(es)) break;
3322 if (control) break;
3323 dw = SendMessageW(es->hwndParent, DM_GETDEFID, 0, 0);
3324 if (HIWORD(dw) == DC_HASDEFID)
3325 {
3326 HWND hwDefCtrl = GetDlgItem(es->hwndParent, LOWORD(dw));
3327 if (hwDefCtrl)
3328 {
3329 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, TRUE);
3330 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
3331 }
3332 }
3333 }
3334 break;
3335 case VK_ESCAPE:
3336 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3337 PostMessageW(es->hwndParent, WM_CLOSE, 0, 0);
3338 break;
3339 case VK_TAB:
3340 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3341 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
3342 break;
3343 }
3344 return TRUE;
3345 }
3346
3347
3348 /*********************************************************************
3349 *
3350 * WM_KILLFOCUS
3351 *
3352 */
3353 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
3354 {
3355 es->flags &= ~EF_FOCUSED;
3356 DestroyCaret();
3357 if(!(es->style & ES_NOHIDESEL))
3358 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3359 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
3360 return 0;
3361 }
3362
3363
3364 /*********************************************************************
3365 *
3366 * WM_LBUTTONDBLCLK
3367 *
3368 * The caret position has been set on the WM_LBUTTONDOWN message
3369 *
3370 */
3371 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
3372 {
3373 INT s;
3374 INT e = es->selection_end;
3375 INT l;
3376 INT li;
3377 INT ll;
3378
3379 es->bCaptureState = TRUE;
3380 SetCapture(es->hwndSelf);
3381
3382 l = EDIT_EM_LineFromChar(es, e);
3383 li = EDIT_EM_LineIndex(es, l);
3384 ll = EDIT_EM_LineLength(es, e);
3385 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
3386 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
3387 EDIT_EM_SetSel(es, s, e, FALSE);
3388 EDIT_EM_ScrollCaret(es);
3389 es->region_posx = es->region_posy = 0;
3390 SetTimer(es->hwndSelf, 0, 100, NULL);
3391 return 0;
3392 }
3393
3394
3395 /*********************************************************************
3396 *
3397 * WM_LBUTTONDOWN
3398 *
3399 */
3400 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
3401 {
3402 INT e;
3403 BOOL after_wrap;
3404
3405 es->bCaptureState = TRUE;
3406 SetCapture(es->hwndSelf);
3407 EDIT_ConfinePoint(es, &x, &y);
3408 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3409 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
3410 EDIT_EM_ScrollCaret(es);
3411 es->region_posx = es->region_posy = 0;
3412 SetTimer(es->hwndSelf, 0, 100, NULL);
3413
3414 if (!(es->flags & EF_FOCUSED))
3415 SetFocus(es->hwndSelf);
3416
3417 return 0;
3418 }
3419
3420
3421 /*********************************************************************
3422 *
3423 * WM_LBUTTONUP
3424 *
3425 */
3426 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
3427 {
3428 if (es->bCaptureState) {
3429 KillTimer(es->hwndSelf, 0);
3430 if (GetCapture() == es->hwndSelf) ReleaseCapture();
3431 }
3432 es->bCaptureState = FALSE;
3433 return 0;
3434 }
3435
3436
3437 /*********************************************************************
3438 *
3439 * WM_MBUTTONDOWN
3440 *
3441 */
3442 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
3443 {
3444 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3445 return 0;
3446 }
3447
3448
3449 /*********************************************************************
3450 *
3451 * WM_MOUSEMOVE
3452 *
3453 */
3454 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
3455 {
3456 INT e;
3457 BOOL after_wrap;
3458 INT prex, prey;
3459
3460 /* If the mouse has been captured by process other than the edit control itself,
3461 * the windows edit controls will not select the strings with mouse move.
3462 */
3463 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
3464 return 0;
3465
3466 /*
3467 * FIXME: gotta do some scrolling if outside client
3468 * area. Maybe reset the timer ?
3469 */
3470 prex = x; prey = y;
3471 EDIT_ConfinePoint(es, &x, &y);
3472 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
3473 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
3474 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3475 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
3476 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
3477 return 0;
3478 }
3479
3480
3481 /*********************************************************************
3482 *
3483 * WM_PAINT
3484 *
3485 */
3486 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
3487 {
3488 PAINTSTRUCT ps;
3489 INT i;
3490 HDC dc;
3491 HFONT old_font = 0;
3492 RECT rc;
3493 RECT rcClient;
3494 RECT rcLine;
3495 RECT rcRgn;
3496 HBRUSH brush;
3497 HBRUSH old_brush;
3498 INT bw, bh;
3499 BOOL rev = es->bEnableState &&
3500 ((es->flags & EF_FOCUSED) ||
3501 (es->style & ES_NOHIDESEL));
3502 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
3503
3504 GetClientRect(es->hwndSelf, &rcClient);
3505
3506 /* get the background brush */
3507 brush = EDIT_NotifyCtlColor(es, dc);
3508
3509 /* paint the border and the background */
3510 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
3511
3512 if(es->style & WS_BORDER) {
3513 bw = GetSystemMetrics(SM_CXBORDER);
3514 bh = GetSystemMetrics(SM_CYBORDER);
3515 rc = rcClient;
3516 if(es->style & ES_MULTILINE) {
3517 if(es->style & WS_HSCROLL) rc.bottom+=bh;
3518 if(es->style & WS_VSCROLL) rc.right+=bw;
3519 }
3520
3521 /* Draw the frame. Same code as in nonclient.c */
3522 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
3523 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
3524 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
3525 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
3526 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
3527 SelectObject(dc, old_brush);
3528
3529 /* Keep the border clean */
3530 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
3531 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
3532 }
3533
3534 GetClipBox(dc, &rc);
3535 FillRect(dc, &rc, brush);
3536
3537 IntersectClipRect(dc, es->format_rect.left,
3538 es->format_rect.top,
3539 es->format_rect.right,
3540 es->format_rect.bottom);
3541 if (es->style & ES_MULTILINE) {
3542 rc = rcClient;
3543 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3544 }
3545 if (es->font)
3546 old_font = SelectObject(dc, es->font);
3547
3548 if (!es->bEnableState)
3549 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
3550 GetClipBox(dc, &rcRgn);
3551 if (es->style & ES_MULTILINE) {
3552 INT vlc = get_vertical_line_count(es);
3553 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
3554 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
3555 if (IntersectRect(&rc, &rcRgn, &rcLine))
3556 EDIT_PaintLine(es, dc, i, rev);
3557 }
3558 } else {
3559 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
3560 if (IntersectRect(&rc, &rcRgn, &rcLine))
3561 EDIT_PaintLine(es, dc, 0, rev);
3562 }
3563 if (es->font)
3564 SelectObject(dc, old_font);
3565
3566 if (!hdc)
3567 EndPaint(es->hwndSelf, &ps);
3568 }
3569
3570
3571 /*********************************************************************
3572 *
3573 * WM_SETFOCUS
3574 *
3575 */
3576 static void EDIT_WM_SetFocus(EDITSTATE *es)
3577 {
3578 es->flags |= EF_FOCUSED;
3579
3580 if (!(es->style & ES_NOHIDESEL))
3581 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3582
3583 /* single line edit updates itself */
3584 if (!(es->style & ES_MULTILINE))
3585 {
3586 HDC hdc = GetDC(es->hwndSelf);
3587 EDIT_WM_Paint(es, hdc);
3588 ReleaseDC(es->hwndSelf, hdc);
3589 }
3590
3591 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3592 EDIT_SetCaretPos(es, es->selection_end,
3593 es->flags & EF_AFTER_WRAP);
3594 ShowCaret(es->hwndSelf);
3595 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
3596 }
3597
3598
3599 /*********************************************************************
3600 *
3601 * WM_SETFONT
3602 *
3603 * With Win95 look the margins are set to default font value unless
3604 * the system font (font == 0) is being set, in which case they are left
3605 * unchanged.
3606 *
3607 */
3608 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
3609 {
3610 TEXTMETRICW tm;
3611 HDC dc;
3612 HFONT old_font = 0;
3613 RECT clientRect;
3614
3615 es->font = font;
3616 dc = GetDC(es->hwndSelf);
3617 if (font)
3618 old_font = SelectObject(dc, font);
3619 GetTextMetricsW(dc, &tm);
3620 es->line_height = tm.tmHeight;
3621 es->char_width = tm.tmAveCharWidth;
3622 if (font)
3623 SelectObject(dc, old_font);
3624 ReleaseDC(es->hwndSelf, dc);
3625
3626 /* Reset the format rect and the margins */
3627 GetClientRect(es->hwndSelf, &clientRect);
3628 EDIT_SetRectNP(es, &clientRect);
3629 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
3630 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
3631
3632 if (es->style & ES_MULTILINE)
3633 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3634 else
3635 EDIT_CalcLineWidth_SL(es);
3636
3637 if (redraw)
3638 EDIT_UpdateText(es, NULL, TRUE);
3639 if (es->flags & EF_FOCUSED) {
3640 DestroyCaret();
3641 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3642 EDIT_SetCaretPos(es, es->selection_end,
3643 es->flags & EF_AFTER_WRAP);
3644 ShowCaret(es->hwndSelf);
3645 }
3646 }
3647
3648
3649 /*********************************************************************
3650 *
3651 * WM_SETTEXT
3652 *
3653 * NOTES
3654 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
3655 * The modified flag is reset. No notifications are sent.
3656 *
3657 * For single-line controls, reception of WM_SETTEXT triggers:
3658 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
3659 *
3660 */
3661 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
3662 {
3663 LPWSTR textW = NULL;
3664 if (!unicode && text)
3665 {
3666 LPCSTR textA = (LPCSTR)text;
3667 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
3668 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
3669 if (textW)
3670 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
3671 text = textW;
3672 }
3673
3674 if (es->flags & EF_UPDATE)
3675 /* fixed this bug once; complain if we see it about to happen again. */
3676 ERR("SetSel may generate UPDATE message whose handler may reset "
3677 "selection.\n");
3678
3679 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3680 if (text)
3681 {
3682 TRACE("%s\n", debugstr_w(text));
3683 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
3684 if(!unicode)
3685 HeapFree(GetProcessHeap(), 0, textW);
3686 }
3687 else
3688 {
3689 static const WCHAR empty_stringW[] = {0};
3690 TRACE("<NULL>\n");
3691 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
3692 }
3693 es->x_offset = 0;
3694 es->flags &= ~EF_MODIFIED;
3695 EDIT_EM_SetSel(es, 0, 0, FALSE);
3696
3697 /* Send the notification after the selection start and end have been set
3698 * edit control doesn't send notification on WM_SETTEXT
3699 * if it is multiline, or it is part of combobox
3700 */
3701 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
3702 {
3703 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
3704 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3705 }
3706 EDIT_EM_ScrollCaret(es);
3707 EDIT_UpdateScrollInfo(es);
3708 }
3709
3710
3711 /*********************************************************************
3712 *
3713 * WM_SIZE
3714 *
3715 */
3716 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
3717 {
3718 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
3719 RECT rc;
3720 TRACE("width = %d, height = %d\n", width, height);
3721 SetRect(&rc, 0, 0, width, height);
3722 EDIT_SetRectNP(es, &rc);
3723 EDIT_UpdateText(es, NULL, TRUE);
3724 }
3725 }
3726
3727
3728 /*********************************************************************
3729 *
3730 * WM_STYLECHANGED
3731 *
3732 * This message is sent by SetWindowLong on having changed either the Style
3733 * or the extended style.
3734 *
3735 * We ensure that the window's version of the styles and the EDITSTATE's agree.
3736 *
3737 * See also EDIT_WM_NCCreate
3738 *
3739 * It appears that the Windows version of the edit control allows the style
3740 * (as retrieved by GetWindowLong) to be any value and maintains an internal
3741 * style variable which will generally be different. In this function we
3742 * update the internal style based on what changed in the externally visible
3743 * style.
3744 *
3745 * Much of this content as based upon the MSDN, especially:
3746 * Platform SDK Documentation -> User Interface Services ->
3747 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
3748 * Edit Control Styles
3749 */
3750 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
3751 {
3752 if (GWL_STYLE == which) {
3753 DWORD style_change_mask;
3754 DWORD new_style;
3755 /* Only a subset of changes can be applied after the control
3756 * has been created.
3757 */
3758 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
3759 ES_NUMBER;
3760 if (es->style & ES_MULTILINE)
3761 style_change_mask |= ES_WANTRETURN;
3762
3763 new_style = style->styleNew & style_change_mask;
3764
3765 /* Number overrides lowercase overrides uppercase (at least it
3766 * does in Win95). However I'll bet that ES_NUMBER would be
3767 * invalid under Win 3.1.
3768 */
3769 if (new_style & ES_NUMBER) {
3770 ; /* do not override the ES_NUMBER */
3771 } else if (new_style & ES_LOWERCASE) {
3772 new_style &= ~ES_UPPERCASE;
3773 }
3774
3775 es->style = (es->style & ~style_change_mask) | new_style;
3776 } else if (GWL_EXSTYLE == which) {
3777 ; /* FIXME - what is needed here */
3778 } else {
3779 WARN ("Invalid style change %ld\n",which);
3780 }
3781
3782 return 0;
3783 }
3784
3785 /*********************************************************************
3786 *
3787 * WM_SYSKEYDOWN
3788 *
3789 */
3790 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
3791 {
3792 if ((key == VK_BACK) && (key_data & 0x2000)) {
3793 if (EDIT_EM_CanUndo(es))
3794 EDIT_EM_Undo(es);
3795 return 0;
3796 } else if (key == VK_UP || key == VK_DOWN) {
3797 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
3798 return 0;
3799 }
3800 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, key, key_data);
3801 }
3802
3803
3804 /*********************************************************************
3805 *
3806 * WM_TIMER
3807 *
3808 */
3809 static void EDIT_WM_Timer(EDITSTATE *es)
3810 {
3811 if (es->region_posx < 0) {
3812 EDIT_MoveBackward(es, TRUE);
3813 } else if (es->region_posx > 0) {
3814 EDIT_MoveForward(es, TRUE);
3815 }
3816 /*
3817 * FIXME: gotta do some vertical scrolling here, like
3818 * EDIT_EM_LineScroll(hwnd, 0, 1);
3819 */
3820 }
3821
3822 /*********************************************************************
3823 *
3824 * WM_HSCROLL
3825 *
3826 */
3827 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3828 {
3829 INT dx;
3830 INT fw;
3831
3832 if (!(es->style & ES_MULTILINE))
3833 return 0;
3834
3835 if (!(es->style & ES_AUTOHSCROLL))
3836 return 0;
3837
3838 dx = 0;
3839 fw = es->format_rect.right - es->format_rect.left;
3840 switch (action) {
3841 case SB_LINELEFT:
3842 TRACE("SB_LINELEFT\n");
3843 if (es->x_offset)
3844 dx = -es->char_width;
3845 break;
3846 case SB_LINERIGHT:
3847 TRACE("SB_LINERIGHT\n");
3848 if (es->x_offset < es->text_width)
3849 dx = es->char_width;
3850 break;
3851 case SB_PAGELEFT:
3852 TRACE("SB_PAGELEFT\n");
3853 if (es->x_offset)
3854 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3855 break;
3856 case SB_PAGERIGHT:
3857 TRACE("SB_PAGERIGHT\n");
3858 if (es->x_offset < es->text_width)
3859 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3860 break;
3861 case SB_LEFT:
3862 TRACE("SB_LEFT\n");
3863 if (es->x_offset)
3864 dx = -es->x_offset;
3865 break;
3866 case SB_RIGHT:
3867 TRACE("SB_RIGHT\n");
3868 if (es->x_offset < es->text_width)
3869 dx = es->text_width - es->x_offset;
3870 break;
3871 case SB_THUMBTRACK:
3872 TRACE("SB_THUMBTRACK %d\n", pos);
3873 es->flags |= EF_HSCROLL_TRACK;
3874 if(es->style & WS_HSCROLL)
3875 dx = pos - es->x_offset;
3876 else
3877 {
3878 INT fw, new_x;
3879 /* Sanity check */
3880 if(pos < 0 || pos > 100) return 0;
3881 /* Assume default scroll range 0-100 */
3882 fw = es->format_rect.right - es->format_rect.left;
3883 new_x = pos * (es->text_width - fw) / 100;
3884 dx = es->text_width ? (new_x - es->x_offset) : 0;
3885 }
3886 break;
3887 case SB_THUMBPOSITION:
3888 TRACE("SB_THUMBPOSITION %d\n", pos);
3889 es->flags &= ~EF_HSCROLL_TRACK;
3890 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3891 dx = pos - es->x_offset;
3892 else
3893 {
3894 INT fw, new_x;
3895 /* Sanity check */
3896 if(pos < 0 || pos > 100) return 0;
3897 /* Assume default scroll range 0-100 */
3898 fw = es->format_rect.right - es->format_rect.left;
3899 new_x = pos * (es->text_width - fw) / 100;
3900 dx = es->text_width ? (new_x - es->x_offset) : 0;
3901 }
3902 if (!dx) {
3903 /* force scroll info update */
3904 EDIT_UpdateScrollInfo(es);
3905 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3906 }
3907 break;
3908 case SB_ENDSCROLL:
3909 TRACE("SB_ENDSCROLL\n");
3910 break;
3911 /*
3912 * FIXME : the next two are undocumented !
3913 * Are we doing the right thing ?
3914 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3915 * although it's also a regular control message.
3916 */
3917 case EM_GETTHUMB: /* this one is used by NT notepad */
3918 {
3919 LRESULT ret;
3920 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3921 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3922 else
3923 {
3924 /* Assume default scroll range 0-100 */
3925 INT fw = es->format_rect.right - es->format_rect.left;
3926 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
3927 }
3928 TRACE("EM_GETTHUMB: returning %ld\n", ret);
3929 return ret;
3930 }
3931 case EM_LINESCROLL:
3932 TRACE("EM_LINESCROLL16\n");
3933 dx = pos;
3934 break;
3935
3936 default:
3937 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
3938 action, action);
3939 return 0;
3940 }
3941 if (dx)
3942 {
3943 INT fw = es->format_rect.right - es->format_rect.left;
3944 /* check if we are going to move too far */
3945 if(es->x_offset + dx + fw > es->text_width)
3946 dx = es->text_width - fw - es->x_offset;
3947 if(dx)
3948 EDIT_EM_LineScroll_internal(es, dx, 0);
3949 }
3950 return 0;
3951 }
3952
3953
3954 /*********************************************************************
3955 *
3956 * WM_VSCROLL
3957 *
3958 */
3959 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
3960 {
3961 INT dy;
3962
3963 if (!(es->style & ES_MULTILINE))
3964 return 0;
3965
3966 if (!(es->style & ES_AUTOVSCROLL))
3967 return 0;
3968
3969 dy = 0;
3970 switch (action) {
3971 case SB_LINEUP:
3972 case SB_LINEDOWN:
3973 case SB_PAGEUP:
3974 case SB_PAGEDOWN:
3975 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
3976 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
3977 (action == SB_PAGEUP ? "SB_PAGEUP" :
3978 "SB_PAGEDOWN"))));
3979 EDIT_EM_Scroll(es, action);
3980 return 0;
3981 case SB_TOP:
3982 TRACE("SB_TOP\n");
3983 dy = -es->y_offset;
3984 break;
3985 case SB_BOTTOM:
3986 TRACE("SB_BOTTOM\n");
3987 dy = es->line_count - 1 - es->y_offset;
3988 break;
3989 case SB_THUMBTRACK:
3990 TRACE("SB_THUMBTRACK %d\n", pos);
3991 es->flags |= EF_VSCROLL_TRACK;
3992 if(es->style & WS_VSCROLL)
3993 dy = pos - es->y_offset;
3994 else
3995 {
3996 /* Assume default scroll range 0-100 */
3997 INT vlc, new_y;
3998 /* Sanity check */
3999 if(pos < 0 || pos > 100) return 0;
4000 vlc = get_vertical_line_count(es);
4001 new_y = pos * (es->line_count - vlc) / 100;
4002 dy = es->line_count ? (new_y - es->y_offset) : 0;
4003 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4004 es->line_count, es->y_offset, pos, dy);
4005 }
4006 break;
4007 case SB_THUMBPOSITION:
4008 TRACE("SB_THUMBPOSITION %d\n", pos);
4009 es->flags &= ~EF_VSCROLL_TRACK;
4010 if(es->style & WS_VSCROLL)
4011 dy = pos - es->y_offset;
4012 else
4013 {
4014 /* Assume default scroll range 0-100 */
4015 INT vlc, new_y;
4016 /* Sanity check */
4017 if(pos < 0 || pos > 100) return 0;
4018 vlc = get_vertical_line_count(es);
4019 new_y = pos * (es->line_count - vlc) / 100;
4020 dy = es->line_count ? (new_y - es->y_offset) : 0;
4021 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4022 es->line_count, es->y_offset, pos, dy);
4023 }
4024 if (!dy)
4025 {
4026 /* force scroll info update */
4027 EDIT_UpdateScrollInfo(es);
4028 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
4029 }
4030 break;
4031 case SB_ENDSCROLL:
4032 TRACE("SB_ENDSCROLL\n");
4033 break;
4034 /*
4035 * FIXME : the next two are undocumented !
4036 * Are we doing the right thing ?
4037 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4038 * although it's also a regular control message.
4039 */
4040 case EM_GETTHUMB: /* this one is used by NT notepad */
4041 {
4042 LRESULT ret;
4043 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4044 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4045 else
4046 {
4047 /* Assume default scroll range 0-100 */
4048 INT vlc = get_vertical_line_count(es);
4049 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4050 }
4051 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4052 return ret;
4053 }
4054 case EM_LINESCROLL:
4055 TRACE("EM_LINESCROLL %d\n", pos);
4056 dy = pos;
4057 break;
4058
4059 default:
4060 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4061 action, action);
4062 return 0;
4063 }
4064 if (dy)
4065 EDIT_EM_LineScroll(es, 0, dy);
4066 return 0;
4067 }
4068
4069 /*********************************************************************
4070 *
4071 * EM_GETTHUMB
4072 *
4073 * FIXME: is this right ? (or should it be only VSCROLL)
4074 * (and maybe only for edit controls that really have their
4075 * own scrollbars) (and maybe only for multiline controls ?)
4076 * All in all: very poorly documented
4077 *
4078 */
4079 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
4080 {
4081 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB, 0),
4082 EDIT_WM_HScroll(es, EM_GETTHUMB, 0));
4083 }
4084
4085
4086 /********************************************************************
4087 *
4088 * The Following code is to handle inline editing from IMEs
4089 */
4090
4091 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
4092 {
4093 LONG buflen;
4094 LPWSTR lpCompStr = NULL;
4095 LPSTR lpCompStrAttr = NULL;
4096 DWORD dwBufLenAttr;
4097
4098 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4099
4100 if (buflen < 0)
4101 {
4102 return;
4103 }
4104
4105 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
4106 if (!lpCompStr)
4107 {
4108 ERR("Unable to allocate IME CompositionString\n");
4109 return;
4110 }
4111
4112 if (buflen)
4113 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
4114 lpCompStr[buflen/sizeof(WCHAR)] = 0;
4115
4116 if (CompFlag & GCS_COMPATTR)
4117 {
4118 /*
4119 * We do not use the attributes yet. it would tell us what characters
4120 * are in transition and which are converted or decided upon
4121 */
4122 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
4123 if (dwBufLenAttr)
4124 {
4125 dwBufLenAttr ++;
4126 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
4127 if (!lpCompStrAttr)
4128 {
4129 ERR("Unable to allocate IME Attribute String\n");
4130 HeapFree(GetProcessHeap(),0,lpCompStr);
4131 return;
4132 }
4133 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
4134 dwBufLenAttr);
4135 lpCompStrAttr[dwBufLenAttr] = 0;
4136 }
4137 else
4138 lpCompStrAttr = NULL;
4139 }
4140
4141 /* check for change in composition start */
4142 if (es->selection_end < es->composition_start)
4143 es->composition_start = es->selection_end;
4144
4145 /* replace existing selection string */
4146 es->selection_start = es->composition_start;
4147
4148 if (es->composition_len > 0)
4149 es->selection_end = es->composition_start + es->composition_len;
4150 else
4151 es->selection_end = es->selection_start;
4152
4153 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
4154 es->composition_len = abs(es->composition_start - es->selection_end);
4155
4156 es->selection_start = es->composition_start;
4157 es->selection_end = es->selection_start + es->composition_len;
4158
4159 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
4160 HeapFree(GetProcessHeap(),0,lpCompStr);
4161 }
4162
4163 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
4164 {
4165 LONG buflen;
4166 LPWSTR lpResultStr;
4167
4168 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4169 if (buflen <= 0)
4170 {
4171 return;
4172 }
4173
4174 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
4175 if (!lpResultStr)
4176 {
4177 ERR("Unable to alloc buffer for IME string\n");
4178 return;
4179 }
4180
4181 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
4182 lpResultStr[buflen/sizeof(WCHAR)] = 0;
4183
4184 /* check for change in composition start */
4185 if (es->selection_end < es->composition_start)
4186 es->composition_start = es->selection_end;
4187
4188 es->selection_start = es->composition_start;
4189 es->selection_end = es->composition_start + es->composition_len;
4190 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
4191 es->composition_start = es->selection_end;
4192 es->composition_len = 0;
4193
4194 HeapFree(GetProcessHeap(),0,lpResultStr);
4195 }
4196
4197 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
4198 {
4199 HIMC hIMC;
4200 int cursor;
4201
4202 if (es->composition_len == 0 && es->selection_start != es->selection_end)
4203 {
4204 static const WCHAR empty_stringW[] = {0};
4205 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
4206 es->composition_start = es->selection_end;
4207 }
4208
4209 hIMC = ImmGetContext(hwnd);
4210 if (!hIMC)
4211 return;
4212
4213 if (CompFlag & GCS_RESULTSTR)
4214 EDIT_GetResultStr(hIMC, es);
4215 if (CompFlag & GCS_COMPSTR)
4216 EDIT_GetCompositionStr(hIMC, CompFlag, es);
4217 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
4218 ImmReleaseContext(hwnd, hIMC);
4219 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
4220 }
4221
4222
4223 /*********************************************************************
4224 *
4225 * WM_NCCREATE
4226 *
4227 * See also EDIT_WM_StyleChanged
4228 */
4229 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4230 {
4231 EDITSTATE *es;
4232 UINT alloc_size;
4233
4234 TRACE("Creating %s edit control, style = %08x\n",
4235 unicode ? "Unicode" : "ANSI", lpcs->style);
4236
4237 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4238 return FALSE;
4239 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4240
4241 /*
4242 * Note: since the EDITSTATE has not been fully initialized yet,
4243 * we can't use any API calls that may send
4244 * WM_XXX messages before WM_NCCREATE is completed.
4245 */
4246
4247 es->is_unicode = unicode;
4248 es->style = lpcs->style;
4249
4250 es->bEnableState = !(es->style & WS_DISABLED);
4251
4252 es->hwndSelf = hwnd;
4253 /* Save parent, which will be notified by EN_* messages */
4254 es->hwndParent = lpcs->hwndParent;
4255
4256 if (es->style & ES_COMBO)
4257 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4258
4259 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4260 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4261
4262 /* Number overrides lowercase overrides uppercase (at least it
4263 * does in Win95). However I'll bet that ES_NUMBER would be
4264 * invalid under Win 3.1.
4265 */
4266 if (es->style & ES_NUMBER) {
4267 ; /* do not override the ES_NUMBER */
4268 } else if (es->style & ES_LOWERCASE) {
4269 es->style &= ~ES_UPPERCASE;
4270 }
4271 if (es->style & ES_MULTILINE) {
4272 es->buffer_limit = BUFLIMIT_INITIAL;
4273 if (es->style & WS_VSCROLL)
4274 es->style |= ES_AUTOVSCROLL;
4275 if (es->style & WS_HSCROLL)
4276 es->style |= ES_AUTOHSCROLL;
4277 es->style &= ~ES_PASSWORD;
4278 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4279 /* Confirmed - RIGHT overrides CENTER */
4280 if (es->style & ES_RIGHT)
4281 es->style &= ~ES_CENTER;
4282 es->style &= ~WS_HSCROLL;
4283 es->style &= ~ES_AUTOHSCROLL;
4284 }
4285 } else {
4286 es->buffer_limit = BUFLIMIT_INITIAL;
4287 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4288 es->style &= ~ES_CENTER;
4289 es->style &= ~WS_HSCROLL;
4290 es->style &= ~WS_VSCROLL;
4291 if (es->style & ES_PASSWORD)
4292 es->password_char = '*';
4293 }
4294
4295 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4296 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4297 goto cleanup;
4298 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4299
4300 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4301 goto cleanup;
4302 es->undo_buffer_size = es->buffer_size;
4303
4304 if (es->style & ES_MULTILINE)
4305 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4306 goto cleanup;
4307 es->line_count = 1;
4308
4309 /*
4310 * In Win95 look and feel, the WS_BORDER style is replaced by the
4311 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4312 * control a nonclient area so we don't need to draw the border.
4313 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4314 * a nonclient area and we should handle painting the border ourselves.
4315 *
4316 * When making modifications please ensure that the code still works
4317 * for edit controls created directly with style 0x50800000, exStyle 0
4318 * (which should have a single pixel border)
4319 */
4320 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4321 es->style &= ~WS_BORDER;
4322 else if (es->style & WS_BORDER)
4323 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4324
4325 return TRUE;
4326
4327 cleanup:
4328 SetWindowLongPtrW(es->hwndSelf, 0, 0);
4329 HeapFree(GetProcessHeap(), 0, es->first_line_def);
4330 HeapFree(GetProcessHeap(), 0, es->undo_text);
4331 if (es->hloc32W) LocalFree(es->hloc32W);
4332 HeapFree(GetProcessHeap(), 0, es);
4333 return FALSE;
4334 }
4335
4336
4337 /*********************************************************************
4338 *
4339 * WM_CREATE
4340 *
4341 */
4342 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4343 {
4344 RECT clientRect;
4345
4346 TRACE("%s\n", debugstr_w(name));
4347 /*
4348 * To initialize some final structure members, we call some helper
4349 * functions. However, since the EDITSTATE is not consistent (i.e.
4350 * not fully initialized), we should be very careful which
4351 * functions can be called, and in what order.
4352 */
4353 EDIT_WM_SetFont(es, 0, FALSE);
4354 EDIT_EM_EmptyUndoBuffer(es);
4355
4356 /* We need to calculate the format rect
4357 (applications may send EM_SETMARGINS before the control gets visible) */
4358 GetClientRect(es->hwndSelf, &clientRect);
4359 EDIT_SetRectNP(es, &clientRect);
4360
4361 if (name && *name) {
4362 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4363 /* if we insert text to the editline, the text scrolls out
4364 * of the window, as the caret is placed after the insert
4365 * pos normally; thus we reset es->selection... to 0 and
4366 * update caret
4367 */
4368 es->selection_start = es->selection_end = 0;
4369 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4370 * Messages are only to be sent when the USER does something to
4371 * change the contents. So I am removing this EN_CHANGE
4372 *
4373 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4374 */
4375 EDIT_EM_ScrollCaret(es);
4376 }
4377 /* force scroll info update */
4378 EDIT_UpdateScrollInfo(es);
4379 /* The rule seems to return 1 here for success */
4380 /* Power Builder masked edit controls will crash */
4381 /* if not. */
4382 /* FIXME: is that in all cases so ? */
4383 return 1;
4384 }
4385
4386
4387 /*********************************************************************
4388 *
4389 * WM_NCDESTROY
4390 *
4391 */
4392 static LRESULT EDIT_WM_NCDestroy(EDITSTATE *es)
4393 {
4394 LINEDEF *pc, *pp;
4395
4396 if (es->hloc32W) {
4397 LocalFree(es->hloc32W);
4398 }
4399 if (es->hloc32A) {
4400 LocalFree(es->hloc32A);
4401 }
4402 pc = es->first_line_def;
4403 while (pc)
4404 {
4405 pp = pc->next;
4406 HeapFree(GetProcessHeap(), 0, pc);
4407 pc = pp;
4408 }
4409
4410 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4411 HeapFree(GetProcessHeap(), 0, es->undo_text);
4412 HeapFree(GetProcessHeap(), 0, es);
4413
4414 return 0;
4415 }
4416
4417
4418 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
4419 {
4420 if(unicode)
4421 return DefWindowProcW(hwnd, msg, wParam, lParam);
4422 else
4423 return DefWindowProcA(hwnd, msg, wParam, lParam);
4424 }
4425
4426 /*********************************************************************
4427 *
4428 * EditWndProc_common
4429 *
4430 * The messages are in the order of the actual integer values
4431 * (which can be found in include/windows.h)
4432 */
4433 LRESULT EditWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode )
4434 {
4435 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
4436 LRESULT result = 0;
4437
4438 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
4439
4440 if (!es && msg != WM_NCCREATE)
4441 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
4442
4443 if (es && (msg != WM_NCDESTROY)) EDIT_LockBuffer(es);
4444
4445 switch (msg) {
4446 case EM_GETSEL:
4447 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
4448 break;
4449
4450 case EM_SETSEL:
4451 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
4452 EDIT_EM_ScrollCaret(es);
4453 result = 1;
4454 break;
4455
4456 case EM_GETRECT:
4457 if (lParam)
4458 CopyRect((LPRECT)lParam, &es->format_rect);
4459 break;
4460
4461 case EM_SETRECT:
4462 if ((es->style & ES_MULTILINE) && lParam) {
4463 EDIT_SetRectNP(es, (LPRECT)lParam);
4464 EDIT_UpdateText(es, NULL, TRUE);
4465 }
4466 break;
4467
4468 case EM_SETRECTNP:
4469 if ((es->style & ES_MULTILINE) && lParam)
4470 EDIT_SetRectNP(es, (LPRECT)lParam);
4471 break;
4472
4473 case EM_SCROLL:
4474 result = EDIT_EM_Scroll(es, (INT)wParam);
4475 break;
4476
4477 case EM_LINESCROLL:
4478 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
4479 break;
4480
4481 case EM_SCROLLCARET:
4482 EDIT_EM_ScrollCaret(es);
4483 result = 1;
4484 break;
4485
4486 case EM_GETMODIFY:
4487 result = ((es->flags & EF_MODIFIED) != 0);
4488 break;
4489
4490 case EM_SETMODIFY:
4491 if (wParam)
4492 es->flags |= EF_MODIFIED;
4493 else
4494 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
4495 break;
4496
4497 case EM_GETLINECOUNT:
4498 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
4499 break;
4500
4501 case EM_LINEINDEX:
4502 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
4503 break;
4504
4505 case EM_SETHANDLE:
4506 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
4507 break;
4508
4509 case EM_GETHANDLE:
4510 result = (LRESULT)EDIT_EM_GetHandle(es);
4511 break;
4512
4513 case EM_GETTHUMB:
4514 result = EDIT_EM_GetThumb(es);
4515 break;
4516
4517 /* these messages missing from specs */
4518 case 0x00bf:
4519 case 0x00c0:
4520 case 0x00c3:
4521 case 0x00ca:
4522 FIXME("undocumented message 0x%x, please report\n", msg);
4523 result = DefWindowProcW(hwnd, msg, wParam, lParam);
4524 break;
4525
4526 case EM_LINELENGTH:
4527 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
4528 break;
4529
4530 case EM_REPLACESEL:
4531 {
4532 LPWSTR textW;
4533
4534 if(unicode)
4535 textW = (LPWSTR)lParam;
4536 else
4537 {
4538 LPSTR textA = (LPSTR)lParam;
4539 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4540 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4541 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
4542 }
4543
4544 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
4545 result = 1;
4546
4547 if(!unicode)
4548 HeapFree(GetProcessHeap(), 0, textW);
4549 break;
4550 }
4551
4552 case EM_GETLINE:
4553 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
4554 break;
4555
4556 case EM_SETLIMITTEXT:
4557 EDIT_EM_SetLimitText(es, wParam);
4558 break;
4559
4560 case EM_CANUNDO:
4561 result = (LRESULT)EDIT_EM_CanUndo(es);
4562 break;
4563
4564 case EM_UNDO:
4565 case WM_UNDO:
4566 result = (LRESULT)EDIT_EM_Undo(es);
4567 break;
4568
4569 case EM_FMTLINES:
4570 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
4571 break;
4572
4573 case EM_LINEFROMCHAR:
4574 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
4575 break;
4576
4577 case EM_SETTABSTOPS:
4578 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
4579 break;
4580
4581 case EM_SETPASSWORDCHAR:
4582 {
4583 WCHAR charW = 0;
4584
4585 if(unicode)
4586 charW = (WCHAR)wParam;
4587 else
4588 {
4589 CHAR charA = wParam;
4590 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4591 }
4592
4593 EDIT_EM_SetPasswordChar(es, charW);
4594 break;
4595 }
4596
4597 case EM_EMPTYUNDOBUFFER:
4598 EDIT_EM_EmptyUndoBuffer(es);
4599 break;
4600
4601 case EM_GETFIRSTVISIBLELINE:
4602 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
4603 break;
4604
4605 case EM_SETREADONLY:
4606 {
4607 DWORD old_style = es->style;
4608
4609 if (wParam) {
4610 SetWindowLongW( hwnd, GWL_STYLE,
4611 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
4612 es->style |= ES_READONLY;
4613 } else {
4614 SetWindowLongW( hwnd, GWL_STYLE,
4615 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
4616 es->style &= ~ES_READONLY;
4617 }
4618
4619 if (old_style ^ es->style)
4620 InvalidateRect(es->hwndSelf, NULL, TRUE);
4621
4622 result = 1;
4623 break;
4624 }
4625
4626 case EM_SETWORDBREAKPROC:
4627 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
4628 break;
4629
4630 case EM_GETWORDBREAKPROC:
4631 result = (LRESULT)es->word_break_proc;
4632 break;
4633
4634 case EM_GETPASSWORDCHAR:
4635 {
4636 if(unicode)
4637 result = es->password_char;
4638 else
4639 {
4640 WCHAR charW = es->password_char;
4641 CHAR charA = 0;
4642 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
4643 result = charA;
4644 }
4645 break;
4646 }
4647
4648 case EM_SETMARGINS:
4649 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
4650 break;
4651
4652 case EM_GETMARGINS:
4653 result = MAKELONG(es->left_margin, es->right_margin);
4654 break;
4655
4656 case EM_GETLIMITTEXT:
4657 result = es->buffer_limit;
4658 break;
4659
4660 case EM_POSFROMCHAR:
4661 if ((INT)wParam >= get_text_length(es)) result = -1;
4662 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
4663 break;
4664
4665 case EM_CHARFROMPOS:
4666 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4667 break;
4668
4669 /* End of the EM_ messages which were in numerical order; what order
4670 * are these in? vaguely alphabetical?
4671 */
4672
4673 case WM_NCCREATE:
4674 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
4675 break;
4676
4677 case WM_NCDESTROY:
4678 result = EDIT_WM_NCDestroy(es);
4679 es = NULL;
4680 break;
4681
4682 case WM_GETDLGCODE:
4683 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
4684
4685 if (es->style & ES_MULTILINE)
4686 result |= DLGC_WANTALLKEYS;
4687
4688 if (lParam)
4689 {
4690 es->flags|=EF_DIALOGMODE;
4691
4692 if (((LPMSG)lParam)->message == WM_KEYDOWN)
4693 {
4694 int vk = (int)((LPMSG)lParam)->wParam;
4695
4696 if (es->hwndListBox)
4697 {
4698 if (vk == VK_RETURN || vk == VK_ESCAPE)
4699 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
4700 result |= DLGC_WANTMESSAGE;
4701 }
4702 }
4703 }
4704 break;
4705
4706 case WM_IME_CHAR:
4707 if (!unicode)
4708 {
4709 WCHAR charW;
4710 CHAR strng[2];
4711
4712 strng[0] = wParam >> 8;
4713 strng[1] = wParam & 0xff;
4714 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
4715 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
4716 result = EDIT_WM_Char(es, charW);
4717 break;
4718 }
4719 /* fall through */
4720 case WM_CHAR:
4721 {
4722 WCHAR charW;
4723
4724 if(unicode)
4725 charW = wParam;
4726 else
4727 {
4728 CHAR charA = wParam;
4729 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4730 }
4731
4732 if (es->hwndListBox)
4733 {
4734 if (charW == VK_RETURN || charW == VK_ESCAPE)
4735 {
4736 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
4737 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
4738 break;
4739 }
4740 }
4741 result = EDIT_WM_Char(es, charW);
4742 break;
4743 }
4744
4745 case WM_UNICHAR:
4746 if (unicode)
4747 {
4748 if (wParam == UNICODE_NOCHAR) return TRUE;
4749 if (wParam <= 0x000fffff)
4750 {
4751 if(wParam > 0xffff) /* convert to surrogates */
4752 {
4753 wParam -= 0x10000;
4754 EDIT_WM_Char(es, (wParam >> 10) + 0xd800);
4755 EDIT_WM_Char(es, (wParam & 0x03ff) + 0xdc00);
4756 }
4757 else EDIT_WM_Char(es, wParam);
4758 }
4759 return 0;
4760 }
4761 break;
4762
4763 case WM_CLEAR:
4764 EDIT_WM_Clear(es);
4765 break;
4766
4767 case WM_COMMAND:
4768 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
4769 break;
4770
4771 case WM_CONTEXTMENU:
4772 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4773 break;
4774
4775 case WM_COPY:
4776 EDIT_WM_Copy(es);
4777 break;
4778
4779 case WM_CREATE:
4780 if(unicode)
4781 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
4782 else
4783 {
4784 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
4785 LPWSTR nameW = NULL;
4786 if(nameA)
4787 {
4788 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
4789 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4790 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
4791 }
4792 result = EDIT_WM_Create(es, nameW);
4793 HeapFree(GetProcessHeap(), 0, nameW);
4794 }
4795 break;
4796
4797 case WM_CUT:
4798 EDIT_WM_Cut(es);
4799 break;
4800
4801 case WM_ENABLE:
4802 es->bEnableState = (BOOL) wParam;
4803 EDIT_UpdateText(es, NULL, TRUE);
4804 break;
4805
4806 case WM_ERASEBKGND:
4807 /* we do the proper erase in EDIT_WM_Paint */
4808 result = 1;
4809 break;
4810
4811 case WM_GETFONT:
4812 result = (LRESULT)es->font;
4813 break;
4814
4815 case WM_GETTEXT:
4816 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
4817 break;
4818
4819 case WM_GETTEXTLENGTH:
4820 if (unicode) result = get_text_length(es);
4821 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
4822 NULL, 0, NULL, NULL );
4823 break;
4824
4825 case WM_HSCROLL:
4826 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
4827 break;
4828
4829 case WM_KEYDOWN:
4830 result = EDIT_WM_KeyDown(es, (INT)wParam);
4831 break;
4832
4833 case WM_KILLFOCUS:
4834 result = EDIT_WM_KillFocus(es);
4835 break;
4836
4837 case WM_LBUTTONDBLCLK:
4838 result = EDIT_WM_LButtonDblClk(es);
4839 break;
4840
4841 case WM_LBUTTONDOWN:
4842 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
4843 break;
4844
4845 case WM_LBUTTONUP:
4846 result = EDIT_WM_LButtonUp(es);
4847 break;
4848
4849 case WM_MBUTTONDOWN:
4850 result = EDIT_WM_MButtonDown(es);
4851 break;
4852
4853 case WM_MOUSEMOVE:
4854 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4855 break;
4856
4857 case WM_PRINTCLIENT:
4858 case WM_PAINT:
4859 EDIT_WM_Paint(es, (HDC)wParam);
4860 break;
4861
4862 case WM_PASTE:
4863 EDIT_WM_Paste(es);
4864 break;
4865
4866 case WM_SETFOCUS:
4867 EDIT_WM_SetFocus(es);
4868 break;
4869
4870 case WM_SETFONT:
4871 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
4872 break;
4873
4874 case WM_SETREDRAW:
4875 /* FIXME: actually set an internal flag and behave accordingly */
4876 break;
4877
4878 case WM_SETTEXT:
4879 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
4880 result = TRUE;
4881 break;
4882
4883 case WM_SIZE:
4884 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
4885 break;
4886
4887 case WM_STYLECHANGED:
4888 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
4889 break;
4890
4891 case WM_STYLECHANGING:
4892 result = 0; /* See EDIT_WM_StyleChanged */
4893 break;
4894
4895 case WM_SYSKEYDOWN:
4896 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
4897 break;
4898
4899 case WM_TIMER:
4900 EDIT_WM_Timer(es);
4901 break;
4902
4903 case WM_VSCROLL:
4904 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
4905 break;
4906
4907 case WM_MOUSEWHEEL:
4908 {
4909 int gcWheelDelta = 0;
4910 UINT pulScrollLines = 3;
4911 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
4912
4913 if (wParam & (MK_SHIFT | MK_CONTROL)) {
4914 result = DefWindowProcW(hwnd, msg, wParam, lParam);
4915 break;
4916 }
4917 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
4918 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4919 {
4920 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
4921 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
4922 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
4923 }
4924 }
4925 break;
4926
4927
4928 /* IME messages to make the edit control IME aware */
4929 case WM_IME_SETCONTEXT:
4930 break;
4931
4932 case WM_IME_STARTCOMPOSITION:
4933 es->composition_start = es->selection_end;
4934 es->composition_len = 0;
4935 break;
4936
4937 case WM_IME_COMPOSITION:
4938 EDIT_ImeComposition(hwnd, lParam, es);
4939 break;
4940
4941 case WM_IME_ENDCOMPOSITION:
4942 if (es->composition_len > 0)
4943 {
4944 static const WCHAR empty_stringW[] = {0};
4945 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
4946 es->selection_end = es->selection_start;
4947 es->composition_len= 0;
4948 }
4949 break;
4950
4951 case WM_IME_COMPOSITIONFULL:
4952 break;
4953
4954 case WM_IME_SELECT:
4955 break;
4956
4957 case WM_IME_CONTROL:
4958 break;
4959
4960 default:
4961 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
4962 break;
4963 }
4964
4965 if (IsWindow(hwnd) && es) EDIT_UnlockBuffer(es, FALSE);
4966
4967 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
4968
4969 return result;
4970 }
4971
4972
4973 /*********************************************************************
4974 * edit class descriptor
4975 */
4976 static const WCHAR editW[] = {'E','d','i','t',0};
4977 const struct builtin_class_descr EDIT_builtin_class =
4978 {
4979 editW, /* name */
4980 CS_DBLCLKS | CS_PARENTDC, /* style */
4981 WINPROC_EDIT, /* proc */
4982 #ifdef __i386__
4983 sizeof(EDITSTATE *) + sizeof(WORD), /* extra */
4984 #else
4985 sizeof(EDITSTATE *), /* extra */
4986 #endif
4987 IDC_IBEAM, /* cursor */
4988 0 /* brush */
4989 };
Quick hack tree for wine patches julliard doesn't want to commit