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Pass inherit handle flag properly for CreateNamedPipe.
[wine/multimedia.git] / controls / edit.c
blob82b289ca95c86e97d3e92d7df89024219b125ef3
1 /*
2 * Edit control
3 *
4 * Copyright David W. Metcalfe, 1994
5 * Copyright William Magro, 1995, 1996
6 * Copyright Frans van Dorsselaer, 1996, 1997
7 *
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * TODO:
24 * - ES_CENTER
25 * - ES_RIGHT
26 * - ES_NUMBER (new since win95)
27 * - ES_OEMCONVERT
28 * -!ES_AUTOVSCROLL (every multi line control *is* auto vscroll)
29 * -!ES_AUTOHSCROLL (every single line control *is* auto hscroll)
30 *
31 * When there is no autoscrolling, the control should first check whether
32 * the new text would fit. If not, an EN_MAXTEXT should be sent.
33 * However, currently this would require the actual change to be made,
34 * then call EDIT_BuildLineDefs() and then find out that the new text doesn't
35 * fit. After all this, things should be put back in the state before the
36 * changes. Note that for multi line controls !ES_AUTOHSCROLL works : wordwrap.
37 *
38 */
39
40 #include "config.h"
41
42 #include <stdarg.h>
43 #include <string.h>
44 #include <stdlib.h>
45
46 #include "windef.h"
47 #include "winbase.h"
48 #include "winnt.h"
49 #include "wownt32.h"
50 #include "win.h"
51 #include "wine/winbase16.h"
52 #include "wine/winuser16.h"
53 #include "wine/unicode.h"
54 #include "controls.h"
55 #include "local.h"
56 #include "user.h"
57 #include "wine/debug.h"
58
59 WINE_DEFAULT_DEBUG_CHANNEL(edit);
60 WINE_DECLARE_DEBUG_CHANNEL(combo);
61 WINE_DECLARE_DEBUG_CHANNEL(relay);
62
63 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
64 FIXME: BTW, new specs say 65535 (do you dare ???) */
65 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
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
82 typedef enum
83 {
84 END_0 = 0, /* line ends with terminating '\0' character */
85 END_WRAP, /* line is wrapped */
86 END_HARD, /* line ends with a hard return '\r\n' */
87 END_SOFT, /* line ends with a soft return '\r\r\n' */
88 END_RICH /* line ends with a single '\n' */
89 } LINE_END;
90
91 typedef struct tagLINEDEF {
92 INT length; /* bruto length of a line in bytes */
93 INT net_length; /* netto length of a line in visible characters */
94 LINE_END ending;
95 INT width; /* width of the line in pixels */
96 INT index; /* line index into the buffer */
97 struct tagLINEDEF *next;
98 } LINEDEF;
99
100 typedef struct
101 {
102 BOOL is_unicode; /* how the control was created */
103 LPWSTR text; /* the actual contents of the control */
104 UINT buffer_size; /* the size of the buffer in characters */
105 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
106 HFONT font; /* NULL means standard system font */
107 INT x_offset; /* scroll offset for multi lines this is in pixels
108 for single lines it's in characters */
109 INT line_height; /* height of a screen line in pixels */
110 INT char_width; /* average character width in pixels */
111 DWORD style; /* sane version of wnd->dwStyle */
112 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
113 INT undo_insert_count; /* number of characters inserted in sequence */
114 UINT undo_position; /* character index of the insertion and deletion */
115 LPWSTR undo_text; /* deleted text */
116 UINT undo_buffer_size; /* size of the deleted text buffer */
117 INT selection_start; /* == selection_end if no selection */
118 INT selection_end; /* == current caret position */
119 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
120 INT left_margin; /* in pixels */
121 INT right_margin; /* in pixels */
122 RECT format_rect;
123 INT text_width; /* width of the widest line in pixels for multi line controls
124 and just line width for single line controls */
125 INT region_posx; /* Position of cursor relative to region: */
126 INT region_posy; /* -1: to left, 0: within, 1: to right */
127 EDITWORDBREAKPROC16 word_break_proc16;
128 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
129 INT line_count; /* number of lines */
130 INT y_offset; /* scroll offset in number of lines */
131 BOOL bCaptureState; /* flag indicating whether mouse was captured */
132 BOOL bEnableState; /* flag keeping the enable state */
133 HWND hwndSelf; /* the our window handle */
134 HWND hwndParent; /* Handle of parent for sending EN_* messages.
135 Even if parent will change, EN_* messages
136 should be sent to the first parent. */
137 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
138 /*
139 * only for multi line controls
140 */
141 INT lock_count; /* amount of re-entries in the EditWndProc */
142 INT tabs_count;
143 LPINT tabs;
144 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
145 HLOCAL hloc32W; /* our unicode local memory block */
146 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
147 or EM_SETHANDLE16 */
148 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
149 or EM_SETHANDLE */
150 } EDITSTATE;
151
152
153 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
154 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
155
156 /* used for disabled or read-only edit control */
157 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
158 do \
159 { /* Notify parent which has created this edit control */ \
160 TRACE("notification " str " sent to hwnd=%p\n", es->hwndParent); \
161 SendMessageW(es->hwndParent, WM_COMMAND, \
162 MAKEWPARAM(GetWindowLongW((es->hwndSelf),GWL_ID), wNotifyCode), \
163 (LPARAM)(es->hwndSelf)); \
164 } while(0)
165
166 /*********************************************************************
167 *
168 * Declarations
169 *
170 */
171
172 /*
173 * These functions have trivial implementations
174 * We still like to call them internally
175 * "static inline" makes them more like macro's
176 */
177 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
178 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
179 static inline void EDIT_WM_Clear(EDITSTATE *es);
180 static inline void EDIT_WM_Cut(EDITSTATE *es);
181
182 /*
183 * Helper functions only valid for one type of control
184 */
185 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
186 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
187 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
188 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
189 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
190 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
191 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
192 /*
193 * Helper functions valid for both single line _and_ multi line controls
194 */
195 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
196 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
197 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
198 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
199 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
200 static void EDIT_LockBuffer(EDITSTATE *es);
201 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size, BOOL honor_limit);
202 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
203 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
204 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
205 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
206 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
207 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
208 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
209 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
210 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
211 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
212 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
213 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
214 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
215 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
216 /*
217 * EM_XXX message handlers
218 */
219 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
220 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
221 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
222 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
223 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
224 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
225 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
226 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
227 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
228 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
229 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
230 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
231 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
232 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
233 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
234 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
235 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
236 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
237 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
238 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
239 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
240 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
241 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
242 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
243 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam);
244 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
245 static BOOL EDIT_EM_Undo(EDITSTATE *es);
246 /*
247 * WM_XXX message handlers
248 */
249 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
250 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
251 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
252 static void EDIT_WM_Copy(EDITSTATE *es);
253 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
254 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
255 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
256 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
257 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
258 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
259 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
260 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
261 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
262 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
263 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
264 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
265 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
266 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam);
267 static void EDIT_WM_Paste(EDITSTATE *es);
268 static void EDIT_WM_SetFocus(EDITSTATE *es);
269 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
270 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode);
271 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
272 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
273 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
274 static void EDIT_WM_Timer(EDITSTATE *es);
275 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
276 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
277 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
278
279 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
280 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
281
282 /*********************************************************************
283 * edit class descriptor
284 */
285 const struct builtin_class_descr EDIT_builtin_class =
286 {
287 "Edit", /* name */
288 CS_DBLCLKS | CS_PARENTDC, /* style */
289 EditWndProcA, /* procA */
290 EditWndProcW, /* procW */
291 sizeof(EDITSTATE *), /* extra */
292 IDC_IBEAM, /* cursor */
293 0 /* brush */
294 };
295
296
297 /*********************************************************************
298 *
299 * EM_CANUNDO
300 *
301 */
302 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
303 {
304 return (es->undo_insert_count || strlenW(es->undo_text));
305 }
306
307
308 /*********************************************************************
309 *
310 * EM_EMPTYUNDOBUFFER
311 *
312 */
313 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
314 {
315 es->undo_insert_count = 0;
316 *es->undo_text = '\0';
317 }
318
319
320 /*********************************************************************
321 *
322 * WM_CLEAR
323 *
324 */
325 static inline void EDIT_WM_Clear(EDITSTATE *es)
326 {
327 static const WCHAR empty_stringW[] = {0};
328
329 /* Protect read-only edit control from modification */
330 if(es->style & ES_READONLY)
331 return;
332
333 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
334 }
335
336
337 /*********************************************************************
338 *
339 * WM_CUT
340 *
341 */
342 static inline void EDIT_WM_Cut(EDITSTATE *es)
343 {
344 EDIT_WM_Copy(es);
345 EDIT_WM_Clear(es);
346 }
347
348
349 /**********************************************************************
350 * get_app_version
351 *
352 * Returns the window version in case Wine emulates a later version
353 * of windows than the application expects.
354 *
355 * In a number of cases when windows runs an application that was
356 * designed for an earlier windows version, windows reverts
357 * to "old" behaviour of that earlier version.
358 *
359 * An example is a disabled edit control that needs to be painted.
360 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
361 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
362 * applications with an expected version 0f 4.0 or higher.
363 *
364 */
365 static DWORD get_app_version(void)
366 {
367 static DWORD version;
368 if (!version)
369 {
370 DWORD dwEmulatedVersion;
371 OSVERSIONINFOW info;
372 DWORD dwProcVersion = GetProcessVersion(0);
373
374 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
375 GetVersionExW( &info );
376 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
377 /* FIXME: this may not be 100% correct; see discussion on the
378 * wine developer list in Nov 1999 */
379 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
380 }
381 return version;
382 }
383
384
385 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
386 {
387 UINT msg;
388
389 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
390 msg = WM_CTLCOLORSTATIC;
391 else
392 msg = WM_CTLCOLOREDIT;
393
394 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
395 return (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
396 }
397
398 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
399 {
400 if(unicode)
401 return DefWindowProcW(hwnd, msg, wParam, lParam);
402 else
403 return DefWindowProcA(hwnd, msg, wParam, lParam);
404 }
405
406 /*********************************************************************
407 *
408 * EditWndProc_common
409 *
410 * The messages are in the order of the actual integer values
411 * (which can be found in include/windows.h)
412 * Wherever possible the 16 bit versions are converted to
413 * the 32 bit ones, so that we can 'fall through' to the
414 * helper functions. These are mostly 32 bit (with a few
415 * exceptions, clearly indicated by a '16' extension to their
416 * names).
417 *
418 */
419 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
420 WPARAM wParam, LPARAM lParam, BOOL unicode )
421 {
422 EDITSTATE *es = (EDITSTATE *)GetWindowLongW( hwnd, 0 );
423 LRESULT result = 0;
424
425 TRACE("hwnd=%p msg=%x wparam=%x lparam=%lx\n", hwnd, msg, wParam, lParam);
426
427 if (!es && msg != WM_NCCREATE)
428 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
429 else if (msg == WM_NCCREATE)
430 return EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
431 else if (msg == WM_DESTROY)
432 return EDIT_WM_Destroy(es);
433
434
435 if (es) EDIT_LockBuffer(es);
436
437 switch (msg) {
438 case EM_GETSEL16:
439 wParam = 0;
440 lParam = 0;
441 /* fall through */
442 case EM_GETSEL:
443 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
444 break;
445
446 case EM_SETSEL16:
447 if ((short)LOWORD(lParam) == -1)
448 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
449 else
450 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
451 if (!wParam)
452 EDIT_EM_ScrollCaret(es);
453 result = 1;
454 break;
455 case EM_SETSEL:
456 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
457 EDIT_EM_ScrollCaret(es);
458 result = 1;
459 break;
460
461 case EM_GETRECT16:
462 if (lParam)
463 CONV_RECT32TO16(&es->format_rect, MapSL(lParam));
464 break;
465 case EM_GETRECT:
466 if (lParam)
467 CopyRect((LPRECT)lParam, &es->format_rect);
468 break;
469
470 case EM_SETRECT16:
471 if ((es->style & ES_MULTILINE) && lParam) {
472 RECT rc;
473 CONV_RECT16TO32(MapSL(lParam), &rc);
474 EDIT_SetRectNP(es, &rc);
475 EDIT_UpdateText(es, NULL, TRUE);
476 }
477 break;
478 case EM_SETRECT:
479 if ((es->style & ES_MULTILINE) && lParam) {
480 EDIT_SetRectNP(es, (LPRECT)lParam);
481 EDIT_UpdateText(es, NULL, TRUE);
482 }
483 break;
484
485 case EM_SETRECTNP16:
486 if ((es->style & ES_MULTILINE) && lParam) {
487 RECT rc;
488 CONV_RECT16TO32(MapSL(lParam), &rc);
489 EDIT_SetRectNP(es, &rc);
490 }
491 break;
492 case EM_SETRECTNP:
493 if ((es->style & ES_MULTILINE) && lParam)
494 EDIT_SetRectNP(es, (LPRECT)lParam);
495 break;
496
497 case EM_SCROLL16:
498 case EM_SCROLL:
499 result = EDIT_EM_Scroll(es, (INT)wParam);
500 break;
501
502 case EM_LINESCROLL16:
503 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
504 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
505 /* fall through */
506 case EM_LINESCROLL:
507 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
508 break;
509
510 case EM_SCROLLCARET16:
511 case EM_SCROLLCARET:
512 EDIT_EM_ScrollCaret(es);
513 result = 1;
514 break;
515
516 case EM_GETMODIFY16:
517 case EM_GETMODIFY:
518 result = ((es->flags & EF_MODIFIED) != 0);
519 break;
520
521 case EM_SETMODIFY16:
522 case EM_SETMODIFY:
523 if (wParam)
524 es->flags |= EF_MODIFIED;
525 else
526 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
527 break;
528
529 case EM_GETLINECOUNT16:
530 case EM_GETLINECOUNT:
531 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
532 break;
533
534 case EM_LINEINDEX16:
535 if ((INT16)wParam == -1)
536 wParam = (WPARAM)-1;
537 /* fall through */
538 case EM_LINEINDEX:
539 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
540 break;
541
542 case EM_SETHANDLE16:
543 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
544 break;
545 case EM_SETHANDLE:
546 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
547 break;
548
549 case EM_GETHANDLE16:
550 result = (LRESULT)EDIT_EM_GetHandle16(es);
551 break;
552 case EM_GETHANDLE:
553 result = (LRESULT)EDIT_EM_GetHandle(es);
554 break;
555
556 case EM_GETTHUMB16:
557 case EM_GETTHUMB:
558 result = EDIT_EM_GetThumb(es);
559 break;
560
561 /* these messages missing from specs */
562 case WM_USER+15:
563 case 0x00bf:
564 case WM_USER+16:
565 case 0x00c0:
566 case WM_USER+19:
567 case 0x00c3:
568 case WM_USER+26:
569 case 0x00ca:
570 FIXME("undocumented message 0x%x, please report\n", msg);
571 result = DefWindowProcW(hwnd, msg, wParam, lParam);
572 break;
573
574 case EM_LINELENGTH16:
575 case EM_LINELENGTH:
576 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
577 break;
578
579 case EM_REPLACESEL16:
580 lParam = (LPARAM)MapSL(lParam);
581 unicode = FALSE; /* 16-bit message is always ascii */
582 /* fall through */
583 case EM_REPLACESEL:
584 {
585 LPWSTR textW;
586
587 if(unicode)
588 textW = (LPWSTR)lParam;
589 else
590 {
591 LPSTR textA = (LPSTR)lParam;
592 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
593 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
594 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
595 }
596
597 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
598 result = 1;
599
600 if(!unicode)
601 HeapFree(GetProcessHeap(), 0, textW);
602 break;
603 }
604
605 case EM_GETLINE16:
606 lParam = (LPARAM)MapSL(lParam);
607 unicode = FALSE; /* 16-bit message is always ascii */
608 /* fall through */
609 case EM_GETLINE:
610 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
611 break;
612
613 case EM_LIMITTEXT16:
614 case EM_SETLIMITTEXT:
615 EDIT_EM_SetLimitText(es, (INT)wParam);
616 break;
617
618 case EM_CANUNDO16:
619 case EM_CANUNDO:
620 result = (LRESULT)EDIT_EM_CanUndo(es);
621 break;
622
623 case EM_UNDO16:
624 case EM_UNDO:
625 case WM_UNDO:
626 result = (LRESULT)EDIT_EM_Undo(es);
627 break;
628
629 case EM_FMTLINES16:
630 case EM_FMTLINES:
631 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
632 break;
633
634 case EM_LINEFROMCHAR16:
635 case EM_LINEFROMCHAR:
636 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
637 break;
638
639 case EM_SETTABSTOPS16:
640 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
641 break;
642 case EM_SETTABSTOPS:
643 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
644 break;
645
646 case EM_SETPASSWORDCHAR16:
647 unicode = FALSE; /* 16-bit message is always ascii */
648 /* fall through */
649 case EM_SETPASSWORDCHAR:
650 {
651 WCHAR charW = 0;
652
653 if(unicode)
654 charW = (WCHAR)wParam;
655 else
656 {
657 CHAR charA = wParam;
658 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
659 }
660
661 EDIT_EM_SetPasswordChar(es, charW);
662 break;
663 }
664
665 case EM_EMPTYUNDOBUFFER16:
666 case EM_EMPTYUNDOBUFFER:
667 EDIT_EM_EmptyUndoBuffer(es);
668 break;
669
670 case EM_GETFIRSTVISIBLELINE16:
671 result = es->y_offset;
672 break;
673 case EM_GETFIRSTVISIBLELINE:
674 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
675 break;
676
677 case EM_SETREADONLY16:
678 case EM_SETREADONLY:
679 if (wParam) {
680 SetWindowLongW( hwnd, GWL_STYLE,
681 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
682 es->style |= ES_READONLY;
683 } else {
684 SetWindowLongW( hwnd, GWL_STYLE,
685 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
686 es->style &= ~ES_READONLY;
687 }
688 result = 1;
689 break;
690
691 case EM_SETWORDBREAKPROC16:
692 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
693 break;
694 case EM_SETWORDBREAKPROC:
695 EDIT_EM_SetWordBreakProc(es, lParam);
696 break;
697
698 case EM_GETWORDBREAKPROC16:
699 result = (LRESULT)es->word_break_proc16;
700 break;
701 case EM_GETWORDBREAKPROC:
702 result = (LRESULT)es->word_break_proc;
703 break;
704
705 case EM_GETPASSWORDCHAR16:
706 unicode = FALSE; /* 16-bit message is always ascii */
707 /* fall through */
708 case EM_GETPASSWORDCHAR:
709 {
710 if(unicode)
711 result = es->password_char;
712 else
713 {
714 WCHAR charW = es->password_char;
715 CHAR charA = 0;
716 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
717 result = charA;
718 }
719 break;
720 }
721
722 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
723
724 case EM_SETMARGINS:
725 EDIT_EM_SetMargins(es, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
726 break;
727
728 case EM_GETMARGINS:
729 result = MAKELONG(es->left_margin, es->right_margin);
730 break;
731
732 case EM_GETLIMITTEXT:
733 result = es->buffer_limit;
734 break;
735
736 case EM_POSFROMCHAR:
737 result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
738 break;
739
740 case EM_CHARFROMPOS:
741 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
742 break;
743
744 /* End of the EM_ messages which were in numerical order; what order
745 * are these in? vaguely alphabetical?
746 */
747
748 case WM_GETDLGCODE:
749 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
750
751 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
752 {
753 int vk = (int)((LPMSG)lParam)->wParam;
754
755 if (vk == VK_RETURN && (GetWindowLongW( hwnd, GWL_STYLE ) & ES_WANTRETURN))
756 {
757 result |= DLGC_WANTMESSAGE;
758 }
759 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
760 {
761 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
762 result |= DLGC_WANTMESSAGE;
763 }
764 }
765 break;
766
767 case WM_IME_CHAR:
768 if (!unicode)
769 {
770 WCHAR charW;
771 CHAR strng[2];
772
773 strng[0] = wParam >> 8;
774 strng[1] = wParam & 0xff;
775 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
776 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
777 EDIT_WM_Char(es, charW);
778 break;
779 }
780 /* fall through */
781 case WM_CHAR:
782 {
783 WCHAR charW;
784
785 if(unicode)
786 charW = wParam;
787 else
788 {
789 CHAR charA = wParam;
790 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
791 }
792
793 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
794 {
795 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
796 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
797 break;
798 }
799 EDIT_WM_Char(es, charW);
800 break;
801 }
802
803 case WM_CLEAR:
804 EDIT_WM_Clear(es);
805 break;
806
807 case WM_COMMAND:
808 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
809 break;
810
811 case WM_CONTEXTMENU:
812 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
813 break;
814
815 case WM_COPY:
816 EDIT_WM_Copy(es);
817 break;
818
819 case WM_CREATE:
820 if(unicode)
821 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
822 else
823 {
824 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
825 LPWSTR nameW = NULL;
826 if(nameA)
827 {
828 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
829 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
830 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
831 }
832 result = EDIT_WM_Create(es, nameW);
833 if(nameW)
834 HeapFree(GetProcessHeap(), 0, nameW);
835 }
836 break;
837
838 case WM_CUT:
839 EDIT_WM_Cut(es);
840 break;
841
842 case WM_ENABLE:
843 es->bEnableState = (BOOL) wParam;
844 EDIT_UpdateText(es, NULL, TRUE);
845 break;
846
847 case WM_ERASEBKGND:
848 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
849 break;
850
851 case WM_GETFONT:
852 result = (LRESULT)es->font;
853 break;
854
855 case WM_GETTEXT:
856 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
857 break;
858
859 case WM_GETTEXTLENGTH:
860 if (unicode) result = strlenW(es->text);
861 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
862 NULL, 0, NULL, NULL );
863 break;
864
865 case WM_HSCROLL:
866 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
867 break;
868
869 case WM_KEYDOWN:
870 result = EDIT_WM_KeyDown(es, (INT)wParam);
871 break;
872
873 case WM_KILLFOCUS:
874 result = EDIT_WM_KillFocus(es);
875 break;
876
877 case WM_LBUTTONDBLCLK:
878 result = EDIT_WM_LButtonDblClk(es);
879 break;
880
881 case WM_LBUTTONDOWN:
882 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
883 break;
884
885 case WM_LBUTTONUP:
886 result = EDIT_WM_LButtonUp(es);
887 break;
888
889 case WM_MBUTTONDOWN:
890 result = EDIT_WM_MButtonDown(es);
891 break;
892
893 case WM_MOUSEACTIVATE:
894 result = MA_ACTIVATE;
895 break;
896
897 case WM_MOUSEMOVE:
898 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
899 break;
900
901 case WM_PAINT:
902 EDIT_WM_Paint(es, wParam);
903 break;
904
905 case WM_PASTE:
906 EDIT_WM_Paste(es);
907 break;
908
909 case WM_SETFOCUS:
910 EDIT_WM_SetFocus(es);
911 break;
912
913 case WM_SETFONT:
914 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
915 break;
916
917 case WM_SETREDRAW:
918 /* FIXME: actually set an internal flag and behave accordingly */
919 break;
920
921 case WM_SETTEXT:
922 EDIT_WM_SetText(es, lParam, unicode);
923 result = TRUE;
924 break;
925
926 case WM_SIZE:
927 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
928 break;
929
930 case WM_STYLECHANGED:
931 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
932 break;
933
934 case WM_STYLECHANGING:
935 result = 0; /* See EDIT_WM_StyleChanged */
936 break;
937
938 case WM_SYSKEYDOWN:
939 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
940 break;
941
942 case WM_TIMER:
943 EDIT_WM_Timer(es);
944 break;
945
946 case WM_VSCROLL:
947 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
948 break;
949
950 case WM_MOUSEWHEEL:
951 {
952 int gcWheelDelta = 0;
953 UINT pulScrollLines = 3;
954 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
955
956 if (wParam & (MK_SHIFT | MK_CONTROL)) {
957 result = DefWindowProcW(hwnd, msg, wParam, lParam);
958 break;
959 }
960 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
961 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
962 {
963 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
964 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
965 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
966 }
967 }
968 break;
969 default:
970 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
971 break;
972 }
973
974 if (es) EDIT_UnlockBuffer(es, FALSE);
975
976 return result;
977 }
978
979 /*********************************************************************
980 *
981 * EditWndProcW (USER32.@)
982 */
983 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
984 {
985 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
986 }
987
988 /*********************************************************************
989 *
990 * EditWndProc (USER32.@)
991 */
992 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
993 {
994 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
995 }
996
997 /*********************************************************************
998 *
999 * EDIT_BuildLineDefs_ML
1000 *
1001 * Build linked list of text lines.
1002 * Lines can end with '\0' (last line), a character (if it is wrapped),
1003 * a soft return '\r\r\n' or a hard return '\r\n'
1004 *
1005 */
1006 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1007 {
1008 HDC dc;
1009 HFONT old_font = 0;
1010 LPWSTR current_position, cp;
1011 INT fw;
1012 LINEDEF *current_line;
1013 LINEDEF *previous_line;
1014 LINEDEF *start_line;
1015 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1016 INT line_count = es->line_count;
1017 INT orig_net_length;
1018 RECT rc;
1019
1020 if (istart == iend && delta == 0)
1021 return;
1022
1023 dc = GetDC(es->hwndSelf);
1024 if (es->font)
1025 old_font = SelectObject(dc, es->font);
1026
1027 previous_line = NULL;
1028 current_line = es->first_line_def;
1029
1030 /* Find starting line. istart must lie inside an existing line or
1031 * at the end of buffer */
1032 do {
1033 if (istart < current_line->index + current_line->length ||
1034 current_line->ending == END_0)
1035 break;
1036
1037 previous_line = current_line;
1038 current_line = current_line->next;
1039 line_index++;
1040 } while (current_line);
1041
1042 if (!current_line) /* Error occurred start is not inside previous buffer */
1043 {
1044 FIXME(" modification occurred outside buffer\n");
1045 ReleaseDC(es->hwndSelf, dc);
1046 return;
1047 }
1048
1049 /* Remember start of modifications in order to calculate update region */
1050 nstart_line = line_index;
1051 nstart_index = current_line->index;
1052
1053 /* We must start to reformat from the previous line since the modifications
1054 * may have caused the line to wrap upwards. */
1055 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1056 {
1057 line_index--;
1058 current_line = previous_line;
1059 }
1060 start_line = current_line;
1061
1062 fw = es->format_rect.right - es->format_rect.left;
1063 current_position = es->text + current_line->index;
1064 do {
1065 if (current_line != start_line)
1066 {
1067 if (!current_line || current_line->index + delta > current_position - es->text)
1068 {
1069 /* The buffer has been expanded, create a new line and
1070 insert it into the link list */
1071 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1072 new_line->next = previous_line->next;
1073 previous_line->next = new_line;
1074 current_line = new_line;
1075 es->line_count++;
1076 }
1077 else if (current_line->index + delta < current_position - es->text)
1078 {
1079 /* The previous line merged with this line so we delete this extra entry */
1080 previous_line->next = current_line->next;
1081 HeapFree(GetProcessHeap(), 0, current_line);
1082 current_line = previous_line->next;
1083 es->line_count--;
1084 continue;
1085 }
1086 else /* current_line->index + delta == current_position */
1087 {
1088 if (current_position - es->text > iend)
1089 break; /* We reached end of line modifications */
1090 /* else recalulate this line */
1091 }
1092 }
1093
1094 current_line->index = current_position - es->text;
1095 orig_net_length = current_line->net_length;
1096
1097 /* Find end of line */
1098 cp = current_position;
1099 while (*cp) {
1100 if (*cp == '\n') break;
1101 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1102 break;
1103 cp++;
1104 }
1105
1106 /* Mark type of line termination */
1107 if (!(*cp)) {
1108 current_line->ending = END_0;
1109 current_line->net_length = strlenW(current_position);
1110 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1111 current_line->ending = END_SOFT;
1112 current_line->net_length = cp - current_position - 1;
1113 } else if (*cp == '\n') {
1114 current_line->ending = END_RICH;
1115 current_line->net_length = cp - current_position;
1116 } else {
1117 current_line->ending = END_HARD;
1118 current_line->net_length = cp - current_position;
1119 }
1120
1121 /* Calculate line width */
1122 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1123 current_position, current_line->net_length,
1124 es->tabs_count, es->tabs));
1125
1126 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1127 if ((!(es->style & ES_AUTOHSCROLL)) && (current_line->width > fw)) {
1128 INT next = 0;
1129 INT prev;
1130 do {
1131 prev = next;
1132 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1133 prev + 1, current_line->net_length, WB_RIGHT);
1134 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1135 current_position, next, es->tabs_count, es->tabs));
1136 } while (current_line->width <= fw);
1137 if (!prev) { /* Didn't find a line break so force a break */
1138 next = 0;
1139 do {
1140 prev = next;
1141 next++;
1142 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1143 current_position, next, es->tabs_count, es->tabs));
1144 } while (current_line->width <= fw);
1145 if (!prev)
1146 prev = 1;
1147 }
1148
1149 /* If the first line we are calculating, wrapped before istart, we must
1150 * adjust istart in order for this to be reflected in the update region. */
1151 if (current_line->index == nstart_index && istart > current_line->index + prev)
1152 istart = current_line->index + prev;
1153 /* else if we are updating the previous line before the first line we
1154 * are re-calculating and it expanded */
1155 else if (current_line == start_line &&
1156 current_line->index != nstart_index && orig_net_length < prev)
1157 {
1158 /* Line expanded due to an upwards line wrap so we must partially include
1159 * previous line in update region */
1160 nstart_line = line_index;
1161 nstart_index = current_line->index;
1162 istart = current_line->index + orig_net_length;
1163 }
1164
1165 current_line->net_length = prev;
1166 current_line->ending = END_WRAP;
1167 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1168 current_line->net_length, es->tabs_count, es->tabs));
1169 }
1170
1171
1172 /* Adjust length to include line termination */
1173 switch (current_line->ending) {
1174 case END_SOFT:
1175 current_line->length = current_line->net_length + 3;
1176 break;
1177 case END_RICH:
1178 current_line->length = current_line->net_length + 1;
1179 break;
1180 case END_HARD:
1181 current_line->length = current_line->net_length + 2;
1182 break;
1183 case END_WRAP:
1184 case END_0:
1185 current_line->length = current_line->net_length;
1186 break;
1187 }
1188 es->text_width = max(es->text_width, current_line->width);
1189 current_position += current_line->length;
1190 previous_line = current_line;
1191 current_line = current_line->next;
1192 line_index++;
1193 } while (previous_line->ending != END_0);
1194
1195 /* Finish adjusting line indexes by delta or remove hanging lines */
1196 if (previous_line->ending == END_0)
1197 {
1198 LINEDEF *pnext = NULL;
1199
1200 previous_line->next = NULL;
1201 while (current_line)
1202 {
1203 pnext = current_line->next;
1204 HeapFree(GetProcessHeap(), 0, current_line);
1205 current_line = pnext;
1206 es->line_count--;
1207 }
1208 }
1209 else
1210 {
1211 while (current_line)
1212 {
1213 current_line->index += delta;
1214 current_line = current_line->next;
1215 }
1216 }
1217
1218 /* Calculate rest of modification rectangle */
1219 if (hrgn)
1220 {
1221 HRGN tmphrgn;
1222 /*
1223 * We calculate two rectangles. One for the first line which may have
1224 * an indent with respect to the format rect. The other is a format-width
1225 * rectangle that spans the rest of the lines that changed or moved.
1226 */
1227 rc.top = es->format_rect.top + nstart_line * es->line_height -
1228 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1229 rc.bottom = rc.top + es->line_height;
1230 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1231 es->text + nstart_index, istart - nstart_index,
1232 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1233 rc.right = es->format_rect.right;
1234 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1235
1236 rc.top = rc.bottom;
1237 rc.left = es->format_rect.left;
1238 rc.right = es->format_rect.right;
1239 /*
1240 * If lines were added or removed we must re-paint the remainder of the
1241 * lines since the remaining lines were either shifted up or down.
1242 */
1243 if (line_count < es->line_count) /* We added lines */
1244 rc.bottom = es->line_count * es->line_height;
1245 else if (line_count > es->line_count) /* We removed lines */
1246 rc.bottom = line_count * es->line_height;
1247 else
1248 rc.bottom = line_index * es->line_height;
1249 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1250 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1251 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1252 DeleteObject(tmphrgn);
1253 }
1254
1255 if (es->font)
1256 SelectObject(dc, old_font);
1257
1258 ReleaseDC(es->hwndSelf, dc);
1259 }
1260
1261 /*********************************************************************
1262 *
1263 * EDIT_CalcLineWidth_SL
1264 *
1265 */
1266 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1267 {
1268 es->text_width = (short)LOWORD(EDIT_EM_PosFromChar(es, strlenW(es->text), FALSE));
1269 }
1270
1271 /*********************************************************************
1272 *
1273 * EDIT_CallWordBreakProc
1274 *
1275 * Call appropriate WordBreakProc (internal or external).
1276 *
1277 * Note: The "start" argument should always be an index referring
1278 * to es->text. The actual wordbreak proc might be
1279 * 16 bit, so we can't always pass any 32 bit LPSTR.
1280 * Hence we assume that es->text is the buffer that holds
1281 * the string under examination (we can decide this for ourselves).
1282 *
1283 */
1284 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1285 {
1286 INT ret, iWndsLocks;
1287
1288 /* To avoid any deadlocks, all the locks on the window structures
1289 must be suspended before the control is passed to the application */
1290 iWndsLocks = WIN_SuspendWndsLock();
1291
1292 if (es->word_break_proc16) {
1293 HGLOBAL16 hglob16;
1294 SEGPTR segptr;
1295 INT countA;
1296 WORD args[5];
1297 DWORD result;
1298
1299 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1300 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1301 segptr = K32WOWGlobalLock16(hglob16);
1302 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1303 args[4] = SELECTOROF(segptr);
1304 args[3] = OFFSETOF(segptr);
1305 args[2] = index;
1306 args[1] = countA;
1307 args[0] = action;
1308 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1309 ret = LOWORD(result);
1310 GlobalUnlock16(hglob16);
1311 GlobalFree16(hglob16);
1312 }
1313 else if (es->word_break_proc)
1314 {
1315 if(es->is_unicode)
1316 {
1317 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1318
1319 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1320 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1321 ret = wbpW(es->text + start, index, count, action);
1322 }
1323 else
1324 {
1325 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1326 INT countA;
1327 CHAR *textA;
1328
1329 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1330 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1331 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1332 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1333 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1334 ret = wbpA(textA, index, countA, action);
1335 HeapFree(GetProcessHeap(), 0, textA);
1336 }
1337 }
1338 else
1339 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1340
1341 WIN_RestoreWndsLock(iWndsLocks);
1342 return ret;
1343 }
1344
1345
1346 /*********************************************************************
1347 *
1348 * EDIT_CharFromPos
1349 *
1350 * Beware: This is not the function called on EM_CHARFROMPOS
1351 * The position _can_ be outside the formatting / client
1352 * rectangle
1353 * The return value is only the character index
1354 *
1355 */
1356 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1357 {
1358 INT index;
1359 HDC dc;
1360 HFONT old_font = 0;
1361
1362 if (es->style & ES_MULTILINE) {
1363 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1364 INT line_index = 0;
1365 LINEDEF *line_def = es->first_line_def;
1366 INT low, high;
1367 while ((line > 0) && line_def->next) {
1368 line_index += line_def->length;
1369 line_def = line_def->next;
1370 line--;
1371 }
1372 x += es->x_offset - es->format_rect.left;
1373 if (x >= line_def->width) {
1374 if (after_wrap)
1375 *after_wrap = (line_def->ending == END_WRAP);
1376 return line_index + line_def->net_length;
1377 }
1378 if (x <= 0) {
1379 if (after_wrap)
1380 *after_wrap = FALSE;
1381 return line_index;
1382 }
1383 dc = GetDC(es->hwndSelf);
1384 if (es->font)
1385 old_font = SelectObject(dc, es->font);
1386 low = line_index + 1;
1387 high = line_index + line_def->net_length + 1;
1388 while (low < high - 1)
1389 {
1390 INT mid = (low + high) / 2;
1391 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1392 else low = mid;
1393 }
1394 index = low;
1395
1396 if (after_wrap)
1397 *after_wrap = ((index == line_index + line_def->net_length) &&
1398 (line_def->ending == END_WRAP));
1399 } else {
1400 LPWSTR text;
1401 SIZE size;
1402 if (after_wrap)
1403 *after_wrap = FALSE;
1404 x -= es->format_rect.left;
1405 if (!x)
1406 return es->x_offset;
1407 text = EDIT_GetPasswordPointer_SL(es);
1408 dc = GetDC(es->hwndSelf);
1409 if (es->font)
1410 old_font = SelectObject(dc, es->font);
1411 if (x < 0)
1412 {
1413 INT low = 0;
1414 INT high = es->x_offset;
1415 while (low < high - 1)
1416 {
1417 INT mid = (low + high) / 2;
1418 GetTextExtentPoint32W( dc, text + mid,
1419 es->x_offset - mid, &size );
1420 if (size.cx > -x) low = mid;
1421 else high = mid;
1422 }
1423 index = low;
1424 }
1425 else
1426 {
1427 INT low = es->x_offset;
1428 INT high = strlenW(es->text) + 1;
1429 while (low < high - 1)
1430 {
1431 INT mid = (low + high) / 2;
1432 GetTextExtentPoint32W( dc, text + es->x_offset,
1433 mid - es->x_offset, &size );
1434 if (size.cx > x) high = mid;
1435 else low = mid;
1436 }
1437 index = low;
1438 }
1439 if (es->style & ES_PASSWORD)
1440 HeapFree(GetProcessHeap(), 0, text);
1441 }
1442 if (es->font)
1443 SelectObject(dc, old_font);
1444 ReleaseDC(es->hwndSelf, dc);
1445 return index;
1446 }
1447
1448
1449 /*********************************************************************
1450 *
1451 * EDIT_ConfinePoint
1452 *
1453 * adjusts the point to be within the formatting rectangle
1454 * (so CharFromPos returns the nearest _visible_ character)
1455 *
1456 */
1457 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1458 {
1459 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1460 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1461 }
1462
1463
1464 /*********************************************************************
1465 *
1466 * EDIT_GetLineRect
1467 *
1468 * Calculates the bounding rectangle for a line from a starting
1469 * column to an ending column.
1470 *
1471 */
1472 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1473 {
1474 INT line_index = EDIT_EM_LineIndex(es, line);
1475
1476 if (es->style & ES_MULTILINE)
1477 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1478 else
1479 rc->top = es->format_rect.top;
1480 rc->bottom = rc->top + es->line_height;
1481 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1482 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1483 }
1484
1485
1486 /*********************************************************************
1487 *
1488 * EDIT_GetPasswordPointer_SL
1489 *
1490 * note: caller should free the (optionally) allocated buffer
1491 *
1492 */
1493 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1494 {
1495 if (es->style & ES_PASSWORD) {
1496 INT len = strlenW(es->text);
1497 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1498 text[len] = '\0';
1499 while(len) text[--len] = es->password_char;
1500 return text;
1501 } else
1502 return es->text;
1503 }
1504
1505
1506 /*********************************************************************
1507 *
1508 * EDIT_LockBuffer
1509 *
1510 * This acts as a LOCAL_Lock(), but it locks only once. This way
1511 * you can call it whenever you like, without unlocking.
1512 *
1513 * Initially the edit control allocates a HLOCAL32 buffer
1514 * (32 bit linear memory handler). However, 16 bit application
1515 * might send a EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1516 * handler). From that moment on we have to keep using this 16 bit memory
1517 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1518 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1519 * conversion.
1520 *
1521 */
1522 static void EDIT_LockBuffer(EDITSTATE *es)
1523 {
1524 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
1525 if (!es->text) {
1526 CHAR *textA = NULL;
1527 UINT countA = 0;
1528 BOOL _16bit = FALSE;
1529
1530 if(es->hloc32W)
1531 {
1532 if(es->hloc32A)
1533 {
1534 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1535 textA = LocalLock(es->hloc32A);
1536 countA = strlen(textA) + 1;
1537 }
1538 else if(es->hloc16)
1539 {
1540 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1541 textA = LOCAL_Lock(hInstance, es->hloc16);
1542 countA = strlen(textA) + 1;
1543 _16bit = TRUE;
1544 }
1545 }
1546 else {
1547 ERR("no buffer ... please report\n");
1548 return;
1549 }
1550
1551 if(textA)
1552 {
1553 HLOCAL hloc32W_new;
1554 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1555 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1556 if(countW_new > es->buffer_size + 1)
1557 {
1558 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1559 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1560 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1561 if(hloc32W_new)
1562 {
1563 es->hloc32W = hloc32W_new;
1564 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1565 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1566 }
1567 else
1568 WARN("FAILED! Will synchronize partially\n");
1569 }
1570 }
1571
1572 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1573 es->text = LocalLock(es->hloc32W);
1574
1575 if(textA)
1576 {
1577 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1578 if(_16bit)
1579 LOCAL_Unlock(hInstance, es->hloc16);
1580 else
1581 LocalUnlock(es->hloc32A);
1582 }
1583 }
1584 es->lock_count++;
1585 }
1586
1587
1588 /*********************************************************************
1589 *
1590 * EDIT_SL_InvalidateText
1591 *
1592 * Called from EDIT_InvalidateText().
1593 * Does the job for single-line controls only.
1594 *
1595 */
1596 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1597 {
1598 RECT line_rect;
1599 RECT rc;
1600
1601 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1602 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1603 EDIT_UpdateText(es, &rc, TRUE);
1604 }
1605
1606
1607 /*********************************************************************
1608 *
1609 * EDIT_ML_InvalidateText
1610 *
1611 * Called from EDIT_InvalidateText().
1612 * Does the job for multi-line controls only.
1613 *
1614 */
1615 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1616 {
1617 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1618 INT sl = EDIT_EM_LineFromChar(es, start);
1619 INT el = EDIT_EM_LineFromChar(es, end);
1620 INT sc;
1621 INT ec;
1622 RECT rc1;
1623 RECT rcWnd;
1624 RECT rcLine;
1625 RECT rcUpdate;
1626 INT l;
1627
1628 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1629 return;
1630
1631 sc = start - EDIT_EM_LineIndex(es, sl);
1632 ec = end - EDIT_EM_LineIndex(es, el);
1633 if (sl < es->y_offset) {
1634 sl = es->y_offset;
1635 sc = 0;
1636 }
1637 if (el > es->y_offset + vlc) {
1638 el = es->y_offset + vlc;
1639 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1640 }
1641 GetClientRect(es->hwndSelf, &rc1);
1642 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1643 if (sl == el) {
1644 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1645 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1646 EDIT_UpdateText(es, &rcUpdate, TRUE);
1647 } else {
1648 EDIT_GetLineRect(es, sl, sc,
1649 EDIT_EM_LineLength(es,
1650 EDIT_EM_LineIndex(es, sl)),
1651 &rcLine);
1652 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1653 EDIT_UpdateText(es, &rcUpdate, TRUE);
1654 for (l = sl + 1 ; l < el ; l++) {
1655 EDIT_GetLineRect(es, l, 0,
1656 EDIT_EM_LineLength(es,
1657 EDIT_EM_LineIndex(es, l)),
1658 &rcLine);
1659 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1660 EDIT_UpdateText(es, &rcUpdate, TRUE);
1661 }
1662 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1663 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1664 EDIT_UpdateText(es, &rcUpdate, TRUE);
1665 }
1666 }
1667
1668
1669 /*********************************************************************
1670 *
1671 * EDIT_InvalidateText
1672 *
1673 * Invalidate the text from offset start upto, but not including,
1674 * offset end. Useful for (re)painting the selection.
1675 * Regions outside the linewidth are not invalidated.
1676 * end == -1 means end == TextLength.
1677 * start and end need not be ordered.
1678 *
1679 */
1680 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1681 {
1682 if (end == start)
1683 return;
1684
1685 if (end == -1)
1686 end = strlenW(es->text);
1687
1688 if (end < start) {
1689 INT tmp = start;
1690 start = end;
1691 end = tmp;
1692 }
1693
1694 if (es->style & ES_MULTILINE)
1695 EDIT_ML_InvalidateText(es, start, end);
1696 else
1697 EDIT_SL_InvalidateText(es, start, end);
1698 }
1699
1700
1701 /*********************************************************************
1702 *
1703 * EDIT_MakeFit
1704 *
1705 * Try to fit size + 1 characters in the buffer.
1706 * Constrain to limits if honor_limit is TRUE.
1707 */
1708 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size, BOOL honor_limit)
1709 {
1710 HLOCAL hNew32W;
1711
1712 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
1713 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
1714 return FALSE;
1715 }
1716
1717 if (size <= es->buffer_size)
1718 return TRUE;
1719
1720 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1721
1722 /* Force edit to unlock it's buffer. es->text now NULL */
1723 EDIT_UnlockBuffer(es, TRUE);
1724
1725 if (es->hloc32W) {
1726 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1727 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1728 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1729 es->hloc32W = hNew32W;
1730 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1731 }
1732 }
1733
1734 EDIT_LockBuffer(es);
1735
1736 if (es->buffer_size < size) {
1737 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1738 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1739 return FALSE;
1740 } else {
1741 TRACE("We now have %d+1\n", es->buffer_size);
1742 return TRUE;
1743 }
1744 }
1745
1746
1747 /*********************************************************************
1748 *
1749 * EDIT_MakeUndoFit
1750 *
1751 * Try to fit size + 1 bytes in the undo buffer.
1752 *
1753 */
1754 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1755 {
1756 UINT alloc_size;
1757
1758 if (size <= es->undo_buffer_size)
1759 return TRUE;
1760
1761 TRACE("trying to ReAlloc to %d+1\n", size);
1762
1763 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1764 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1765 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1766 return TRUE;
1767 }
1768 else
1769 {
1770 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1771 return FALSE;
1772 }
1773 }
1774
1775
1776 /*********************************************************************
1777 *
1778 * EDIT_MoveBackward
1779 *
1780 */
1781 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1782 {
1783 INT e = es->selection_end;
1784
1785 if (e) {
1786 e--;
1787 if ((es->style & ES_MULTILINE) && e &&
1788 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1789 e--;
1790 if (e && (es->text[e - 1] == '\r'))
1791 e--;
1792 }
1793 }
1794 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1795 EDIT_EM_ScrollCaret(es);
1796 }
1797
1798
1799 /*********************************************************************
1800 *
1801 * EDIT_MoveDown_ML
1802 *
1803 * Only for multi line controls
1804 * Move the caret one line down, on a column with the nearest
1805 * x coordinate on the screen (might be a different column).
1806 *
1807 */
1808 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1809 {
1810 INT s = es->selection_start;
1811 INT e = es->selection_end;
1812 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1813 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1814 INT x = (short)LOWORD(pos);
1815 INT y = (short)HIWORD(pos);
1816
1817 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1818 if (!extend)
1819 s = e;
1820 EDIT_EM_SetSel(es, s, e, after_wrap);
1821 EDIT_EM_ScrollCaret(es);
1822 }
1823
1824
1825 /*********************************************************************
1826 *
1827 * EDIT_MoveEnd
1828 *
1829 */
1830 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1831 {
1832 BOOL after_wrap = FALSE;
1833 INT e;
1834
1835 /* Pass a high value in x to make sure of receiving the end of the line */
1836 if (es->style & ES_MULTILINE)
1837 e = EDIT_CharFromPos(es, 0x3fffffff,
1838 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1839 else
1840 e = strlenW(es->text);
1841 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1842 EDIT_EM_ScrollCaret(es);
1843 }
1844
1845
1846 /*********************************************************************
1847 *
1848 * EDIT_MoveForward
1849 *
1850 */
1851 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1852 {
1853 INT e = es->selection_end;
1854
1855 if (es->text[e]) {
1856 e++;
1857 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1858 if (es->text[e] == '\n')
1859 e++;
1860 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1861 e += 2;
1862 }
1863 }
1864 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1865 EDIT_EM_ScrollCaret(es);
1866 }
1867
1868
1869 /*********************************************************************
1870 *
1871 * EDIT_MoveHome
1872 *
1873 * Home key: move to beginning of line.
1874 *
1875 */
1876 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1877 {
1878 INT e;
1879
1880 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1881 if (es->style & ES_MULTILINE)
1882 e = EDIT_CharFromPos(es, -es->x_offset,
1883 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1884 else
1885 e = 0;
1886 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1887 EDIT_EM_ScrollCaret(es);
1888 }
1889
1890
1891 /*********************************************************************
1892 *
1893 * EDIT_MovePageDown_ML
1894 *
1895 * Only for multi line controls
1896 * Move the caret one page down, on a column with the nearest
1897 * x coordinate on the screen (might be a different column).
1898 *
1899 */
1900 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1901 {
1902 INT s = es->selection_start;
1903 INT e = es->selection_end;
1904 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1905 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1906 INT x = (short)LOWORD(pos);
1907 INT y = (short)HIWORD(pos);
1908
1909 e = EDIT_CharFromPos(es, x,
1910 y + (es->format_rect.bottom - es->format_rect.top),
1911 &after_wrap);
1912 if (!extend)
1913 s = e;
1914 EDIT_EM_SetSel(es, s, e, after_wrap);
1915 EDIT_EM_ScrollCaret(es);
1916 }
1917
1918
1919 /*********************************************************************
1920 *
1921 * EDIT_MovePageUp_ML
1922 *
1923 * Only for multi line controls
1924 * Move the caret one page up, on a column with the nearest
1925 * x coordinate on the screen (might be a different column).
1926 *
1927 */
1928 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1929 {
1930 INT s = es->selection_start;
1931 INT e = es->selection_end;
1932 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1933 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1934 INT x = (short)LOWORD(pos);
1935 INT y = (short)HIWORD(pos);
1936
1937 e = EDIT_CharFromPos(es, x,
1938 y - (es->format_rect.bottom - es->format_rect.top),
1939 &after_wrap);
1940 if (!extend)
1941 s = e;
1942 EDIT_EM_SetSel(es, s, e, after_wrap);
1943 EDIT_EM_ScrollCaret(es);
1944 }
1945
1946
1947 /*********************************************************************
1948 *
1949 * EDIT_MoveUp_ML
1950 *
1951 * Only for multi line controls
1952 * Move the caret one line up, on a column with the nearest
1953 * x coordinate on the screen (might be a different column).
1954 *
1955 */
1956 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1957 {
1958 INT s = es->selection_start;
1959 INT e = es->selection_end;
1960 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1961 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1962 INT x = (short)LOWORD(pos);
1963 INT y = (short)HIWORD(pos);
1964
1965 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1966 if (!extend)
1967 s = e;
1968 EDIT_EM_SetSel(es, s, e, after_wrap);
1969 EDIT_EM_ScrollCaret(es);
1970 }
1971
1972
1973 /*********************************************************************
1974 *
1975 * EDIT_MoveWordBackward
1976 *
1977 */
1978 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1979 {
1980 INT s = es->selection_start;
1981 INT e = es->selection_end;
1982 INT l;
1983 INT ll;
1984 INT li;
1985
1986 l = EDIT_EM_LineFromChar(es, e);
1987 ll = EDIT_EM_LineLength(es, e);
1988 li = EDIT_EM_LineIndex(es, l);
1989 if (e - li == 0) {
1990 if (l) {
1991 li = EDIT_EM_LineIndex(es, l - 1);
1992 e = li + EDIT_EM_LineLength(es, li);
1993 }
1994 } else {
1995 e = li + (INT)EDIT_CallWordBreakProc(es,
1996 li, e - li, ll, WB_LEFT);
1997 }
1998 if (!extend)
1999 s = e;
2000 EDIT_EM_SetSel(es, s, e, FALSE);
2001 EDIT_EM_ScrollCaret(es);
2002 }
2003
2004
2005 /*********************************************************************
2006 *
2007 * EDIT_MoveWordForward
2008 *
2009 */
2010 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2011 {
2012 INT s = es->selection_start;
2013 INT e = es->selection_end;
2014 INT l;
2015 INT ll;
2016 INT li;
2017
2018 l = EDIT_EM_LineFromChar(es, e);
2019 ll = EDIT_EM_LineLength(es, e);
2020 li = EDIT_EM_LineIndex(es, l);
2021 if (e - li == ll) {
2022 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2023 e = EDIT_EM_LineIndex(es, l + 1);
2024 } else {
2025 e = li + EDIT_CallWordBreakProc(es,
2026 li, e - li + 1, ll, WB_RIGHT);
2027 }
2028 if (!extend)
2029 s = e;
2030 EDIT_EM_SetSel(es, s, e, FALSE);
2031 EDIT_EM_ScrollCaret(es);
2032 }
2033
2034
2035 /*********************************************************************
2036 *
2037 * EDIT_PaintLine
2038 *
2039 */
2040 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2041 {
2042 INT s = es->selection_start;
2043 INT e = es->selection_end;
2044 INT li;
2045 INT ll;
2046 INT x;
2047 INT y;
2048 LRESULT pos;
2049
2050 if (es->style & ES_MULTILINE) {
2051 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2052 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2053 return;
2054 } else if (line)
2055 return;
2056
2057 TRACE("line=%d\n", line);
2058
2059 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2060 x = (short)LOWORD(pos);
2061 y = (short)HIWORD(pos);
2062 li = EDIT_EM_LineIndex(es, line);
2063 ll = EDIT_EM_LineLength(es, li);
2064 s = min(es->selection_start, es->selection_end);
2065 e = max(es->selection_start, es->selection_end);
2066 s = min(li + ll, max(li, s));
2067 e = min(li + ll, max(li, e));
2068 if (rev && (s != e) &&
2069 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2070 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2071 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2072 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2073 } else
2074 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2075 }
2076
2077
2078 /*********************************************************************
2079 *
2080 * EDIT_PaintText
2081 *
2082 */
2083 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2084 {
2085 COLORREF BkColor;
2086 COLORREF TextColor;
2087 INT ret;
2088 INT li;
2089 INT BkMode;
2090 SIZE size;
2091
2092 if (!count)
2093 return 0;
2094 BkMode = GetBkMode(dc);
2095 BkColor = GetBkColor(dc);
2096 TextColor = GetTextColor(dc);
2097 if (rev) {
2098 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2099 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2100 SetBkMode( dc, OPAQUE);
2101 }
2102 li = EDIT_EM_LineIndex(es, line);
2103 if (es->style & ES_MULTILINE) {
2104 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2105 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2106 } else {
2107 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2108 TextOutW(dc, x, y, text + li + col, count);
2109 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2110 ret = size.cx;
2111 if (es->style & ES_PASSWORD)
2112 HeapFree(GetProcessHeap(), 0, text);
2113 }
2114 if (rev) {
2115 SetBkColor(dc, BkColor);
2116 SetTextColor(dc, TextColor);
2117 SetBkMode( dc, BkMode);
2118 }
2119 return ret;
2120 }
2121
2122
2123 /*********************************************************************
2124 *
2125 * EDIT_SetCaretPos
2126 *
2127 */
2128 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2129 BOOL after_wrap)
2130 {
2131 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2132 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2133 }
2134
2135
2136 /*********************************************************************
2137 *
2138 * EDIT_SetRectNP
2139 *
2140 * note: this is not (exactly) the handler called on EM_SETRECTNP
2141 * it is also used to set the rect of a single line control
2142 *
2143 */
2144 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2145 {
2146 CopyRect(&es->format_rect, rc);
2147 if (es->style & WS_BORDER) {
2148 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2149 if(TWEAK_WineLook == WIN31_LOOK)
2150 bw += 2;
2151 es->format_rect.left += bw;
2152 es->format_rect.top += bw;
2153 es->format_rect.right -= bw;
2154 es->format_rect.bottom -= bw;
2155 }
2156 es->format_rect.left += es->left_margin;
2157 es->format_rect.right -= es->right_margin;
2158 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2159 if (es->style & ES_MULTILINE)
2160 {
2161 INT fw, vlc, max_x_offset, max_y_offset;
2162
2163 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2164 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2165
2166 /* correct es->x_offset */
2167 fw = es->format_rect.right - es->format_rect.left;
2168 max_x_offset = es->text_width - fw;
2169 if(max_x_offset < 0) max_x_offset = 0;
2170 if(es->x_offset > max_x_offset)
2171 es->x_offset = max_x_offset;
2172
2173 /* correct es->y_offset */
2174 max_y_offset = es->line_count - vlc;
2175 if(max_y_offset < 0) max_y_offset = 0;
2176 if(es->y_offset > max_y_offset)
2177 es->y_offset = max_y_offset;
2178
2179 /* force scroll info update */
2180 EDIT_UpdateScrollInfo(es);
2181 }
2182 else
2183 /* Windows doesn't care to fix text placement for SL controls */
2184 es->format_rect.bottom = es->format_rect.top + es->line_height;
2185
2186 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2187 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2188 }
2189
2190
2191 /*********************************************************************
2192 *
2193 * EDIT_UnlockBuffer
2194 *
2195 */
2196 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2197 {
2198 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2199
2200 /* Edit window might be already destroyed */
2201 if(!IsWindow(es->hwndSelf))
2202 {
2203 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2204 return;
2205 }
2206
2207 if (!es->lock_count) {
2208 ERR("lock_count == 0 ... please report\n");
2209 return;
2210 }
2211 if (!es->text) {
2212 ERR("es->text == 0 ... please report\n");
2213 return;
2214 }
2215
2216 if (force || (es->lock_count == 1)) {
2217 if (es->hloc32W) {
2218 CHAR *textA = NULL;
2219 BOOL _16bit = FALSE;
2220 UINT countA = 0;
2221 UINT countW = strlenW(es->text) + 1;
2222
2223 if(es->hloc32A)
2224 {
2225 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2226 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2227 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2228 countA = LocalSize(es->hloc32A);
2229 if(countA_new > countA)
2230 {
2231 HLOCAL hloc32A_new;
2232 UINT alloc_size = ROUND_TO_GROW(countA_new);
2233 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2234 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2235 if(hloc32A_new)
2236 {
2237 es->hloc32A = hloc32A_new;
2238 countA = LocalSize(hloc32A_new);
2239 TRACE("Real new size %d bytes\n", countA);
2240 }
2241 else
2242 WARN("FAILED! Will synchronize partially\n");
2243 }
2244 textA = LocalLock(es->hloc32A);
2245 }
2246 else if(es->hloc16)
2247 {
2248 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2249 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2250 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2251 countA = LOCAL_Size(hInstance, es->hloc16);
2252 if(countA_new > countA)
2253 {
2254 HLOCAL16 hloc16_new;
2255 UINT alloc_size = ROUND_TO_GROW(countA_new);
2256 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2257 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2258 if(hloc16_new)
2259 {
2260 es->hloc16 = hloc16_new;
2261 countA = LOCAL_Size(hInstance, hloc16_new);
2262 TRACE("Real new size %d bytes\n", countA);
2263 }
2264 else
2265 WARN("FAILED! Will synchronize partially\n");
2266 }
2267 textA = LOCAL_Lock(hInstance, es->hloc16);
2268 _16bit = TRUE;
2269 }
2270
2271 if(textA)
2272 {
2273 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2274 if(_16bit)
2275 LOCAL_Unlock(hInstance, es->hloc16);
2276 else
2277 LocalUnlock(es->hloc32A);
2278 }
2279
2280 LocalUnlock(es->hloc32W);
2281 es->text = NULL;
2282 }
2283 else {
2284 ERR("no buffer ... please report\n");
2285 return;
2286 }
2287 }
2288 es->lock_count--;
2289 }
2290
2291
2292 /*********************************************************************
2293 *
2294 * EDIT_UpdateScrollInfo
2295 *
2296 */
2297 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2298 {
2299 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2300 {
2301 SCROLLINFO si;
2302 si.cbSize = sizeof(SCROLLINFO);
2303 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2304 si.nMin = 0;
2305 si.nMax = es->line_count - 1;
2306 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2307 si.nPos = es->y_offset;
2308 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2309 si.nMin, si.nMax, si.nPage, si.nPos);
2310 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2311 }
2312
2313 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2314 {
2315 SCROLLINFO si;
2316 si.cbSize = sizeof(SCROLLINFO);
2317 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2318 si.nMin = 0;
2319 si.nMax = es->text_width - 1;
2320 si.nPage = es->format_rect.right - es->format_rect.left;
2321 si.nPos = es->x_offset;
2322 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2323 si.nMin, si.nMax, si.nPage, si.nPos);
2324 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2325 }
2326 }
2327
2328 /*********************************************************************
2329 *
2330 * EDIT_WordBreakProc
2331 *
2332 * Find the beginning of words.
2333 * Note: unlike the specs for a WordBreakProc, this function only
2334 * allows to be called without linebreaks between s[0] upto
2335 * s[count - 1]. Remember it is only called
2336 * internally, so we can decide this for ourselves.
2337 *
2338 */
2339 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2340 {
2341 INT ret = 0;
2342
2343 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2344
2345 if(!s) return 0;
2346
2347 switch (action) {
2348 case WB_LEFT:
2349 if (!count)
2350 break;
2351 if (index)
2352 index--;
2353 if (s[index] == ' ') {
2354 while (index && (s[index] == ' '))
2355 index--;
2356 if (index) {
2357 while (index && (s[index] != ' '))
2358 index--;
2359 if (s[index] == ' ')
2360 index++;
2361 }
2362 } else {
2363 while (index && (s[index] != ' '))
2364 index--;
2365 if (s[index] == ' ')
2366 index++;
2367 }
2368 ret = index;
2369 break;
2370 case WB_RIGHT:
2371 if (!count)
2372 break;
2373 if (index)
2374 index--;
2375 if (s[index] == ' ')
2376 while ((index < count) && (s[index] == ' ')) index++;
2377 else {
2378 while (s[index] && (s[index] != ' ') && (index < count))
2379 index++;
2380 while ((s[index] == ' ') && (index < count)) index++;
2381 }
2382 ret = index;
2383 break;
2384 case WB_ISDELIMITER:
2385 ret = (s[index] == ' ');
2386 break;
2387 default:
2388 ERR("unknown action code, please report !\n");
2389 break;
2390 }
2391 return ret;
2392 }
2393
2394
2395 /*********************************************************************
2396 *
2397 * EM_CHARFROMPOS
2398 *
2399 * returns line number (not index) in high-order word of result.
2400 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2401 * to Richedit, not to the edit control. Original documentation is valid.
2402 * FIXME: do the specs mean to return -1 if outside client area or
2403 * if outside formatting rectangle ???
2404 *
2405 */
2406 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2407 {
2408 POINT pt;
2409 RECT rc;
2410 INT index;
2411
2412 pt.x = x;
2413 pt.y = y;
2414 GetClientRect(es->hwndSelf, &rc);
2415 if (!PtInRect(&rc, pt))
2416 return -1;
2417
2418 index = EDIT_CharFromPos(es, x, y, NULL);
2419 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2420 }
2421
2422
2423 /*********************************************************************
2424 *
2425 * EM_FMTLINES
2426 *
2427 * Enable or disable soft breaks.
2428 *
2429 * This means: insert or remove the soft linebreak character (\r\r\n).
2430 * Take care to check if the text still fits the buffer after insertion.
2431 * If not, notify with EN_ERRSPACE.
2432 *
2433 */
2434 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2435 {
2436 es->flags &= ~EF_USE_SOFTBRK;
2437 if (add_eol) {
2438 es->flags |= EF_USE_SOFTBRK;
2439 FIXME("soft break enabled, not implemented\n");
2440 }
2441 return add_eol;
2442 }
2443
2444
2445 /*********************************************************************
2446 *
2447 * EM_GETHANDLE
2448 *
2449 * Hopefully this won't fire back at us.
2450 * We always start with a fixed buffer in the local heap.
2451 * Despite of the documentation says that the local heap is used
2452 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2453 * buffer on the local heap.
2454 *
2455 */
2456 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2457 {
2458 HLOCAL hLocal;
2459
2460 if (!(es->style & ES_MULTILINE))
2461 return 0;
2462
2463 if(es->is_unicode)
2464 hLocal = es->hloc32W;
2465 else
2466 {
2467 if(!es->hloc32A)
2468 {
2469 CHAR *textA;
2470 UINT countA, alloc_size;
2471 TRACE("Allocating 32-bit ANSI alias buffer\n");
2472 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2473 alloc_size = ROUND_TO_GROW(countA);
2474 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2475 {
2476 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2477 return 0;
2478 }
2479 textA = LocalLock(es->hloc32A);
2480 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2481 LocalUnlock(es->hloc32A);
2482 }
2483 hLocal = es->hloc32A;
2484 }
2485
2486 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2487 return hLocal;
2488 }
2489
2490
2491 /*********************************************************************
2492 *
2493 * EM_GETHANDLE16
2494 *
2495 * Hopefully this won't fire back at us.
2496 * We always start with a buffer in 32 bit linear memory.
2497 * However, with this message a 16 bit application requests
2498 * a handle of 16 bit local heap memory, where it expects to find
2499 * the text.
2500 * It's a pitty that from this moment on we have to use this
2501 * local heap, because applications may rely on the handle
2502 * in the future.
2503 *
2504 * In this function we'll try to switch to local heap.
2505 */
2506 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2507 {
2508 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2509 CHAR *textA;
2510 UINT countA, alloc_size;
2511
2512 if (!(es->style & ES_MULTILINE))
2513 return 0;
2514
2515 if (es->hloc16)
2516 return es->hloc16;
2517
2518 if (!LOCAL_HeapSize(hInstance)) {
2519 if (!LocalInit16(hInstance, 0,
2520 GlobalSize16(hInstance))) {
2521 ERR("could not initialize local heap\n");
2522 return 0;
2523 }
2524 TRACE("local heap initialized\n");
2525 }
2526
2527 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2528 alloc_size = ROUND_TO_GROW(countA);
2529
2530 TRACE("Allocating 16-bit ANSI alias buffer\n");
2531 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2532 ERR("could not allocate new 16 bit buffer\n");
2533 return 0;
2534 }
2535
2536 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2537 ERR("could not lock new 16 bit buffer\n");
2538 LOCAL_Free(hInstance, es->hloc16);
2539 es->hloc16 = 0;
2540 return 0;
2541 }
2542
2543 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2544 LOCAL_Unlock(hInstance, es->hloc16);
2545
2546 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2547 return es->hloc16;
2548 }
2549
2550
2551 /*********************************************************************
2552 *
2553 * EM_GETLINE
2554 *
2555 */
2556 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2557 {
2558 LPWSTR src;
2559 INT line_len, dst_len;
2560 INT i;
2561
2562 if (es->style & ES_MULTILINE) {
2563 if (line >= es->line_count)
2564 return 0;
2565 } else
2566 line = 0;
2567 i = EDIT_EM_LineIndex(es, line);
2568 src = es->text + i;
2569 line_len = EDIT_EM_LineLength(es, i);
2570 dst_len = *(WORD *)lParam;
2571 if(unicode)
2572 {
2573 LPWSTR dst = (LPWSTR)lParam;
2574 if(dst_len <= line_len)
2575 {
2576 memcpy(dst, src, dst_len * sizeof(WCHAR));
2577 return dst_len;
2578 }
2579 else /* Append 0 if enough space */
2580 {
2581 memcpy(dst, src, line_len * sizeof(WCHAR));
2582 dst[line_len] = 0;
2583 return line_len;
2584 }
2585 }
2586 else
2587 {
2588 LPSTR dst = (LPSTR)lParam;
2589 INT ret;
2590 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2591 if(!ret) /* Insufficient buffer size */
2592 return dst_len;
2593 if(ret < dst_len) /* Append 0 if enough space */
2594 dst[ret] = 0;
2595 return ret;
2596 }
2597 }
2598
2599
2600 /*********************************************************************
2601 *
2602 * EM_GETSEL
2603 *
2604 */
2605 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2606 {
2607 UINT s = es->selection_start;
2608 UINT e = es->selection_end;
2609
2610 ORDER_UINT(s, e);
2611 if (start)
2612 *start = s;
2613 if (end)
2614 *end = e;
2615 return MAKELONG(s, e);
2616 }
2617
2618
2619 /*********************************************************************
2620 *
2621 * EM_GETTHUMB
2622 *
2623 * FIXME: is this right ? (or should it be only VSCROLL)
2624 * (and maybe only for edit controls that really have their
2625 * own scrollbars) (and maybe only for multiline controls ?)
2626 * All in all: very poorly documented
2627 *
2628 */
2629 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2630 {
2631 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2632 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2633 }
2634
2635
2636 /*********************************************************************
2637 *
2638 * EM_LINEFROMCHAR
2639 *
2640 */
2641 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2642 {
2643 INT line;
2644 LINEDEF *line_def;
2645
2646 if (!(es->style & ES_MULTILINE))
2647 return 0;
2648 if (index > (INT)strlenW(es->text))
2649 return es->line_count - 1;
2650 if (index == -1)
2651 index = min(es->selection_start, es->selection_end);
2652
2653 line = 0;
2654 line_def = es->first_line_def;
2655 index -= line_def->length;
2656 while ((index >= 0) && line_def->next) {
2657 line++;
2658 line_def = line_def->next;
2659 index -= line_def->length;
2660 }
2661 return line;
2662 }
2663
2664
2665 /*********************************************************************
2666 *
2667 * EM_LINEINDEX
2668 *
2669 */
2670 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2671 {
2672 INT line_index;
2673 LINEDEF *line_def;
2674
2675 if (!(es->style & ES_MULTILINE))
2676 return 0;
2677 if (line >= es->line_count)
2678 return -1;
2679
2680 line_index = 0;
2681 line_def = es->first_line_def;
2682 if (line == -1) {
2683 INT index = es->selection_end - line_def->length;
2684 while ((index >= 0) && line_def->next) {
2685 line_index += line_def->length;
2686 line_def = line_def->next;
2687 index -= line_def->length;
2688 }
2689 } else {
2690 while (line > 0) {
2691 line_index += line_def->length;
2692 line_def = line_def->next;
2693 line--;
2694 }
2695 }
2696 return line_index;
2697 }
2698
2699
2700 /*********************************************************************
2701 *
2702 * EM_LINELENGTH
2703 *
2704 */
2705 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2706 {
2707 LINEDEF *line_def;
2708
2709 if (!(es->style & ES_MULTILINE))
2710 return strlenW(es->text);
2711
2712 if (index == -1) {
2713 /* get the number of remaining non-selected chars of selected lines */
2714 INT32 l; /* line number */
2715 INT32 li; /* index of first char in line */
2716 INT32 count;
2717 l = EDIT_EM_LineFromChar(es, es->selection_start);
2718 /* # chars before start of selection area */
2719 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2720 l = EDIT_EM_LineFromChar(es, es->selection_end);
2721 /* # chars after end of selection */
2722 li = EDIT_EM_LineIndex(es, l);
2723 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2724 return count;
2725 }
2726 line_def = es->first_line_def;
2727 index -= line_def->length;
2728 while ((index >= 0) && line_def->next) {
2729 line_def = line_def->next;
2730 index -= line_def->length;
2731 }
2732 return line_def->net_length;
2733 }
2734
2735
2736 /*********************************************************************
2737 *
2738 * EM_LINESCROLL
2739 *
2740 * NOTE: dx is in average character widths, dy - in lines;
2741 *
2742 */
2743 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2744 {
2745 if (!(es->style & ES_MULTILINE))
2746 return FALSE;
2747
2748 dx *= es->char_width;
2749 return EDIT_EM_LineScroll_internal(es, dx, dy);
2750 }
2751
2752 /*********************************************************************
2753 *
2754 * EDIT_EM_LineScroll_internal
2755 *
2756 * Version of EDIT_EM_LineScroll for internal use.
2757 * It doesn't refuse if ES_MULTILINE is set and assumes that
2758 * dx is in pixels, dy - in lines.
2759 *
2760 */
2761 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2762 {
2763 INT nyoff;
2764 INT x_offset_in_pixels;
2765
2766 if (es->style & ES_MULTILINE)
2767 {
2768 x_offset_in_pixels = es->x_offset;
2769 }
2770 else
2771 {
2772 dy = 0;
2773 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2774 }
2775
2776 if (-dx > x_offset_in_pixels)
2777 dx = -x_offset_in_pixels;
2778 if (dx > es->text_width - x_offset_in_pixels)
2779 dx = es->text_width - x_offset_in_pixels;
2780 nyoff = max(0, es->y_offset + dy);
2781 if (nyoff >= es->line_count)
2782 nyoff = es->line_count - 1;
2783 dy = (es->y_offset - nyoff) * es->line_height;
2784 if (dx || dy) {
2785 RECT rc1;
2786 RECT rc;
2787
2788 es->y_offset = nyoff;
2789 if(es->style & ES_MULTILINE)
2790 es->x_offset += dx;
2791 else
2792 es->x_offset += dx / es->char_width;
2793
2794 GetClientRect(es->hwndSelf, &rc1);
2795 IntersectRect(&rc, &rc1, &es->format_rect);
2796 ScrollWindowEx(es->hwndSelf, -dx, dy,
2797 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2798 /* force scroll info update */
2799 EDIT_UpdateScrollInfo(es);
2800 }
2801 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2802 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2803 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2804 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2805 return TRUE;
2806 }
2807
2808
2809 /*********************************************************************
2810 *
2811 * EM_POSFROMCHAR
2812 *
2813 */
2814 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2815 {
2816 INT len = strlenW(es->text);
2817 INT l;
2818 INT li;
2819 INT x;
2820 INT y = 0;
2821 HDC dc;
2822 HFONT old_font = 0;
2823 SIZE size;
2824
2825 index = min(index, len);
2826 dc = GetDC(es->hwndSelf);
2827 if (es->font)
2828 old_font = SelectObject(dc, es->font);
2829 if (es->style & ES_MULTILINE) {
2830 l = EDIT_EM_LineFromChar(es, index);
2831 y = (l - es->y_offset) * es->line_height;
2832 li = EDIT_EM_LineIndex(es, l);
2833 if (after_wrap && (li == index) && l) {
2834 INT l2 = l - 1;
2835 LINEDEF *line_def = es->first_line_def;
2836 while (l2) {
2837 line_def = line_def->next;
2838 l2--;
2839 }
2840 if (line_def->ending == END_WRAP) {
2841 l--;
2842 y -= es->line_height;
2843 li = EDIT_EM_LineIndex(es, l);
2844 }
2845 }
2846 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2847 es->tabs_count, es->tabs)) - es->x_offset;
2848 } else {
2849 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2850 if (index < es->x_offset) {
2851 GetTextExtentPoint32W(dc, text + index,
2852 es->x_offset - index, &size);
2853 x = -size.cx;
2854 } else {
2855 GetTextExtentPoint32W(dc, text + es->x_offset,
2856 index - es->x_offset, &size);
2857 x = size.cx;
2858 }
2859 y = 0;
2860 if (es->style & ES_PASSWORD)
2861 HeapFree(GetProcessHeap(), 0, text);
2862 }
2863 x += es->format_rect.left;
2864 y += es->format_rect.top;
2865 if (es->font)
2866 SelectObject(dc, old_font);
2867 ReleaseDC(es->hwndSelf, dc);
2868 return MAKELONG((INT16)x, (INT16)y);
2869 }
2870
2871
2872 /*********************************************************************
2873 *
2874 * EM_REPLACESEL
2875 *
2876 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2877 *
2878 */
2879 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2880 {
2881 UINT strl = strlenW(lpsz_replace);
2882 UINT tl = strlenW(es->text);
2883 UINT utl;
2884 UINT s;
2885 UINT e;
2886 UINT i;
2887 LPWSTR p;
2888 HRGN hrgn = 0;
2889
2890 TRACE("%s, can_undo %d, send_update %d\n",
2891 debugstr_w(lpsz_replace), can_undo, send_update);
2892
2893 s = es->selection_start;
2894 e = es->selection_end;
2895
2896 if ((s == e) && !strl)
2897 return;
2898
2899 ORDER_UINT(s, e);
2900
2901 if (!EDIT_MakeFit(es, tl - (e - s) + strl, honor_limit))
2902 return;
2903
2904 if (e != s) {
2905 /* there is something to be deleted */
2906 TRACE("deleting stuff.\n");
2907 if (can_undo) {
2908 utl = strlenW(es->undo_text);
2909 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2910 /* undo-buffer is extended to the right */
2911 EDIT_MakeUndoFit(es, utl + e - s);
2912 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
2913 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2914 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2915 /* undo-buffer is extended to the left */
2916 EDIT_MakeUndoFit(es, utl + e - s);
2917 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2918 p[e - s] = p[0];
2919 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2920 p[i] = (es->text + s)[i];
2921 es->undo_position = s;
2922 } else {
2923 /* new undo-buffer */
2924 EDIT_MakeUndoFit(es, e - s);
2925 strncpyW(es->undo_text, es->text + s, e - s + 1);
2926 es->undo_text[e - s] = 0; /* ensure 0 termination */
2927 es->undo_position = s;
2928 }
2929 /* any deletion makes the old insertion-undo invalid */
2930 es->undo_insert_count = 0;
2931 } else
2932 EDIT_EM_EmptyUndoBuffer(es);
2933
2934 /* now delete */
2935 strcpyW(es->text + s, es->text + e);
2936 }
2937 if (strl) {
2938 /* there is an insertion */
2939 if (can_undo) {
2940 if ((s == es->undo_position) ||
2941 ((es->undo_insert_count) &&
2942 (s == es->undo_position + es->undo_insert_count)))
2943 /*
2944 * insertion is new and at delete position or
2945 * an extension to either left or right
2946 */
2947 es->undo_insert_count += strl;
2948 else {
2949 /* new insertion undo */
2950 es->undo_position = s;
2951 es->undo_insert_count = strl;
2952 /* new insertion makes old delete-buffer invalid */
2953 *es->undo_text = '\0';
2954 }
2955 } else
2956 EDIT_EM_EmptyUndoBuffer(es);
2957
2958 /* now insert */
2959 tl = strlenW(es->text);
2960 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));
2961 for (p = es->text + tl ; p >= es->text + s ; p--)
2962 p[strl] = p[0];
2963 for (i = 0 , p = es->text + s ; i < strl ; i++)
2964 p[i] = lpsz_replace[i];
2965 if(es->style & ES_UPPERCASE)
2966 CharUpperBuffW(p, strl);
2967 else if(es->style & ES_LOWERCASE)
2968 CharLowerBuffW(p, strl);
2969 s += strl;
2970 }
2971 if (es->style & ES_MULTILINE)
2972 {
2973 INT s = min(es->selection_start, es->selection_end);
2974
2975 hrgn = CreateRectRgn(0, 0, 0, 0);
2976 EDIT_BuildLineDefs_ML(es, s, s + strl,
2977 strl - abs(es->selection_end - es->selection_start), hrgn);
2978 }
2979 else
2980 EDIT_CalcLineWidth_SL(es);
2981
2982 EDIT_EM_SetSel(es, s, s, FALSE);
2983 es->flags |= EF_MODIFIED;
2984 if (send_update) es->flags |= EF_UPDATE;
2985 if (hrgn)
2986 {
2987 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2988 DeleteObject(hrgn);
2989 }
2990 else
2991 EDIT_UpdateText(es, NULL, TRUE);
2992
2993 EDIT_EM_ScrollCaret(es);
2994
2995 /* force scroll info update */
2996 EDIT_UpdateScrollInfo(es);
2997
2998
2999 if(es->flags & EF_UPDATE)
3000 {
3001 es->flags &= ~EF_UPDATE;
3002 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3003 }
3004 }
3005
3006
3007 /*********************************************************************
3008 *
3009 * EM_SCROLL
3010 *
3011 */
3012 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3013 {
3014 INT dy;
3015
3016 if (!(es->style & ES_MULTILINE))
3017 return (LRESULT)FALSE;
3018
3019 dy = 0;
3020
3021 switch (action) {
3022 case SB_LINEUP:
3023 if (es->y_offset)
3024 dy = -1;
3025 break;
3026 case SB_LINEDOWN:
3027 if (es->y_offset < es->line_count - 1)
3028 dy = 1;
3029 break;
3030 case SB_PAGEUP:
3031 if (es->y_offset)
3032 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3033 break;
3034 case SB_PAGEDOWN:
3035 if (es->y_offset < es->line_count - 1)
3036 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3037 break;
3038 default:
3039 return (LRESULT)FALSE;
3040 }
3041 if (dy) {
3042 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3043 /* check if we are going to move too far */
3044 if(es->y_offset + dy > es->line_count - vlc)
3045 dy = es->line_count - vlc - es->y_offset;
3046
3047 /* Notification is done in EDIT_EM_LineScroll */
3048 if(dy)
3049 EDIT_EM_LineScroll(es, 0, dy);
3050 }
3051 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3052 }
3053
3054
3055 /*********************************************************************
3056 *
3057 * EM_SCROLLCARET
3058 *
3059 */
3060 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3061 {
3062 if (es->style & ES_MULTILINE) {
3063 INT l;
3064 INT li;
3065 INT vlc;
3066 INT ww;
3067 INT cw = es->char_width;
3068 INT x;
3069 INT dy = 0;
3070 INT dx = 0;
3071
3072 l = EDIT_EM_LineFromChar(es, es->selection_end);
3073 li = EDIT_EM_LineIndex(es, l);
3074 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3075 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3076 if (l >= es->y_offset + vlc)
3077 dy = l - vlc + 1 - es->y_offset;
3078 if (l < es->y_offset)
3079 dy = l - es->y_offset;
3080 ww = es->format_rect.right - es->format_rect.left;
3081 if (x < es->format_rect.left)
3082 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3083 if (x > es->format_rect.right)
3084 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3085 if (dy || dx)
3086 {
3087 /* check if we are going to move too far */
3088 if(es->x_offset + dx + ww > es->text_width)
3089 dx = es->text_width - ww - es->x_offset;
3090 if(dx || dy)
3091 EDIT_EM_LineScroll_internal(es, dx, dy);
3092 }
3093 } else {
3094 INT x;
3095 INT goal;
3096 INT format_width;
3097
3098 if (!(es->style & ES_AUTOHSCROLL))
3099 return;
3100
3101 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3102 format_width = es->format_rect.right - es->format_rect.left;
3103 if (x < es->format_rect.left) {
3104 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3105 do {
3106 es->x_offset--;
3107 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3108 } while ((x < goal) && es->x_offset);
3109 /* FIXME: use ScrollWindow() somehow to improve performance */
3110 EDIT_UpdateText(es, NULL, TRUE);
3111 } else if (x > es->format_rect.right) {
3112 INT x_last;
3113 INT len = strlenW(es->text);
3114 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3115 do {
3116 es->x_offset++;
3117 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3118 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3119 } while ((x > goal) && (x_last > es->format_rect.right));
3120 /* FIXME: use ScrollWindow() somehow to improve performance */
3121 EDIT_UpdateText(es, NULL, TRUE);
3122 }
3123 }
3124
3125 if(es->flags & EF_FOCUSED)
3126 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3127 }
3128
3129
3130 /*********************************************************************
3131 *
3132 * EM_SETHANDLE
3133 *
3134 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3135 *
3136 */
3137 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3138 {
3139 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3140
3141 if (!(es->style & ES_MULTILINE))
3142 return;
3143
3144 if (!hloc) {
3145 WARN("called with NULL handle\n");
3146 return;
3147 }
3148
3149 EDIT_UnlockBuffer(es, TRUE);
3150
3151 if(es->hloc16)
3152 {
3153 LOCAL_Free(hInstance, es->hloc16);
3154 es->hloc16 = (HLOCAL16)NULL;
3155 }
3156
3157 if(es->is_unicode)
3158 {
3159 if(es->hloc32A)
3160 {
3161 LocalFree(es->hloc32A);
3162 es->hloc32A = NULL;
3163 }
3164 es->hloc32W = hloc;
3165 }
3166 else
3167 {
3168 INT countW, countA;
3169 HLOCAL hloc32W_new;
3170 WCHAR *textW;
3171 CHAR *textA;
3172
3173 countA = LocalSize(hloc);
3174 textA = LocalLock(hloc);
3175 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3176 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3177 {
3178 ERR("Could not allocate new unicode buffer\n");
3179 return;
3180 }
3181 textW = LocalLock(hloc32W_new);
3182 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3183 LocalUnlock(hloc32W_new);
3184 LocalUnlock(hloc);
3185
3186 if(es->hloc32W)
3187 LocalFree(es->hloc32W);
3188
3189 es->hloc32W = hloc32W_new;
3190 es->hloc32A = hloc;
3191 }
3192
3193 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3194
3195 EDIT_LockBuffer(es);
3196
3197 es->x_offset = es->y_offset = 0;
3198 es->selection_start = es->selection_end = 0;
3199 EDIT_EM_EmptyUndoBuffer(es);
3200 es->flags &= ~EF_MODIFIED;
3201 es->flags &= ~EF_UPDATE;
3202 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3203 EDIT_UpdateText(es, NULL, TRUE);
3204 EDIT_EM_ScrollCaret(es);
3205 /* force scroll info update */
3206 EDIT_UpdateScrollInfo(es);
3207 }
3208
3209
3210 /*********************************************************************
3211 *
3212 * EM_SETHANDLE16
3213 *
3214 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3215 *
3216 */
3217 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3218 {
3219 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3220 INT countW, countA;
3221 HLOCAL hloc32W_new;
3222 WCHAR *textW;
3223 CHAR *textA;
3224
3225 if (!(es->style & ES_MULTILINE))
3226 return;
3227
3228 if (!hloc) {
3229 WARN("called with NULL handle\n");
3230 return;
3231 }
3232
3233 EDIT_UnlockBuffer(es, TRUE);
3234
3235 if(es->hloc32A)
3236 {
3237 LocalFree(es->hloc32A);
3238 es->hloc32A = NULL;
3239 }
3240
3241 countA = LOCAL_Size(hInstance, hloc);
3242 textA = LOCAL_Lock(hInstance, hloc);
3243 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3244 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3245 {
3246 ERR("Could not allocate new unicode buffer\n");
3247 return;
3248 }
3249 textW = LocalLock(hloc32W_new);
3250 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3251 LocalUnlock(hloc32W_new);
3252 LOCAL_Unlock(hInstance, hloc);
3253
3254 if(es->hloc32W)
3255 LocalFree(es->hloc32W);
3256
3257 es->hloc32W = hloc32W_new;
3258 es->hloc16 = hloc;
3259
3260 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3261
3262 EDIT_LockBuffer(es);
3263
3264 es->x_offset = es->y_offset = 0;
3265 es->selection_start = es->selection_end = 0;
3266 EDIT_EM_EmptyUndoBuffer(es);
3267 es->flags &= ~EF_MODIFIED;
3268 es->flags &= ~EF_UPDATE;
3269 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3270 EDIT_UpdateText(es, NULL, TRUE);
3271 EDIT_EM_ScrollCaret(es);
3272 /* force scroll info update */
3273 EDIT_UpdateScrollInfo(es);
3274 }
3275
3276
3277 /*********************************************************************
3278 *
3279 * EM_SETLIMITTEXT
3280 *
3281 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3282 * However, the windows version is not complied to yet in all of edit.c
3283 *
3284 * Additionally as the wrapper for RichEdit controls we need larger buffers
3285 * at present -1 will represent nolimit
3286 */
3287 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3288 {
3289 if (limit == 0xFFFFFFFF)
3290 es->buffer_limit = -1;
3291 else if (es->style & ES_MULTILINE) {
3292 if (limit)
3293 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3294 else
3295 es->buffer_limit = BUFLIMIT_MULTI;
3296 } else {
3297 if (limit)
3298 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3299 else
3300 es->buffer_limit = BUFLIMIT_SINGLE;
3301 }
3302 }
3303
3304
3305 /*********************************************************************
3306 *
3307 * EM_SETMARGINS
3308 *
3309 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3310 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3311 * margin according to the textmetrics of the current font.
3312 *
3313 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3314 * of the char's width as the margin, but this is not how Windows handles this.
3315 * For all other fonts Windows sets the margins to zero.
3316 *
3317 */
3318 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3319 INT left, INT right)
3320 {
3321 TEXTMETRICW tm;
3322 INT default_left_margin = 0; /* in pixels */
3323 INT default_right_margin = 0; /* in pixels */
3324
3325 /* Set the default margins depending on the font */
3326 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3327 HDC dc = GetDC(es->hwndSelf);
3328 HFONT old_font = SelectObject(dc, es->font);
3329 GetTextMetricsW(dc, &tm);
3330 /* The default margins are only non zero for TrueType or Vector fonts */
3331 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3332 /* This must be calculated more exactly! But how? */
3333 default_left_margin = tm.tmAveCharWidth / 3;
3334 default_right_margin = tm.tmAveCharWidth / 3;
3335 }
3336 SelectObject(dc, old_font);
3337 ReleaseDC(es->hwndSelf, dc);
3338 }
3339
3340 if (action & EC_LEFTMARGIN) {
3341 if (left != EC_USEFONTINFO)
3342 es->left_margin = left;
3343 else
3344 es->left_margin = default_left_margin;
3345 }
3346
3347 if (action & EC_RIGHTMARGIN) {
3348 if (right != EC_USEFONTINFO)
3349 es->right_margin = right;
3350 else
3351 es->right_margin = default_right_margin;
3352 }
3353 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3354 }
3355
3356
3357 /*********************************************************************
3358 *
3359 * EM_SETPASSWORDCHAR
3360 *
3361 */
3362 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3363 {
3364 LONG style;
3365
3366 if (es->style & ES_MULTILINE)
3367 return;
3368
3369 if (es->password_char == c)
3370 return;
3371
3372 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3373 es->password_char = c;
3374 if (c) {
3375 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3376 es->style |= ES_PASSWORD;
3377 } else {
3378 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3379 es->style &= ~ES_PASSWORD;
3380 }
3381 EDIT_UpdateText(es, NULL, TRUE);
3382 }
3383
3384
3385 /*********************************************************************
3386 *
3387 * EDIT_EM_SetSel
3388 *
3389 * note: unlike the specs say: the order of start and end
3390 * _is_ preserved in Windows. (i.e. start can be > end)
3391 * In other words: this handler is OK
3392 *
3393 */
3394 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3395 {
3396 UINT old_start = es->selection_start;
3397 UINT old_end = es->selection_end;
3398 UINT len = strlenW(es->text);
3399
3400 if (start == (UINT)-1) {
3401 start = es->selection_end;
3402 end = es->selection_end;
3403 } else {
3404 start = min(start, len);
3405 end = min(end, len);
3406 }
3407 es->selection_start = start;
3408 es->selection_end = end;
3409 if (after_wrap)
3410 es->flags |= EF_AFTER_WRAP;
3411 else
3412 es->flags &= ~EF_AFTER_WRAP;
3413 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3414 ORDER_UINT(start, end);
3415 ORDER_UINT(end, old_end);
3416 ORDER_UINT(start, old_start);
3417 ORDER_UINT(old_start, old_end);
3418 if (end != old_start)
3419 {
3420 /*
3421 * One can also do
3422 * ORDER_UINT32(end, old_start);
3423 * EDIT_InvalidateText(es, start, end);
3424 * EDIT_InvalidateText(es, old_start, old_end);
3425 * in place of the following if statement.
3426 */
3427 if (old_start > end )
3428 {
3429 EDIT_InvalidateText(es, start, end);
3430 EDIT_InvalidateText(es, old_start, old_end);
3431 }
3432 else
3433 {
3434 EDIT_InvalidateText(es, start, old_start);
3435 EDIT_InvalidateText(es, end, old_end);
3436 }
3437 }
3438 else EDIT_InvalidateText(es, start, old_end);
3439 }
3440
3441
3442 /*********************************************************************
3443 *
3444 * EM_SETTABSTOPS
3445 *
3446 */
3447 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3448 {
3449 if (!(es->style & ES_MULTILINE))
3450 return FALSE;
3451 if (es->tabs)
3452 HeapFree(GetProcessHeap(), 0, es->tabs);
3453 es->tabs_count = count;
3454 if (!count)
3455 es->tabs = NULL;
3456 else {
3457 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3458 memcpy(es->tabs, tabs, count * sizeof(INT));
3459 }
3460 return TRUE;
3461 }
3462
3463
3464 /*********************************************************************
3465 *
3466 * EM_SETTABSTOPS16
3467 *
3468 */
3469 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3470 {
3471 if (!(es->style & ES_MULTILINE))
3472 return FALSE;
3473 if (es->tabs)
3474 HeapFree(GetProcessHeap(), 0, es->tabs);
3475 es->tabs_count = count;
3476 if (!count)
3477 es->tabs = NULL;
3478 else {
3479 INT i;
3480 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3481 for (i = 0 ; i < count ; i++)
3482 es->tabs[i] = *tabs++;
3483 }
3484 return TRUE;
3485 }
3486
3487
3488 /*********************************************************************
3489 *
3490 * EM_SETWORDBREAKPROC
3491 *
3492 */
3493 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam)
3494 {
3495 if (es->word_break_proc == (void *)lParam)
3496 return;
3497
3498 es->word_break_proc = (void *)lParam;
3499 es->word_break_proc16 = NULL;
3500
3501 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3502 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3503 EDIT_UpdateText(es, NULL, TRUE);
3504 }
3505 }
3506
3507
3508 /*********************************************************************
3509 *
3510 * EM_SETWORDBREAKPROC16
3511 *
3512 */
3513 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3514 {
3515 if (es->word_break_proc16 == wbp)
3516 return;
3517
3518 es->word_break_proc = NULL;
3519 es->word_break_proc16 = wbp;
3520 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3521 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3522 EDIT_UpdateText(es, NULL, TRUE);
3523 }
3524 }
3525
3526
3527 /*********************************************************************
3528 *
3529 * EM_UNDO / WM_UNDO
3530 *
3531 */
3532 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3533 {
3534 INT ulength;
3535 LPWSTR utext;
3536
3537 /* Protect read-only edit control from modification */
3538 if(es->style & ES_READONLY)
3539 return FALSE;
3540
3541 ulength = strlenW(es->undo_text);
3542 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3543
3544 strcpyW(utext, es->undo_text);
3545
3546 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3547 es->undo_insert_count, debugstr_w(utext));
3548
3549 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3550 EDIT_EM_EmptyUndoBuffer(es);
3551 EDIT_EM_ReplaceSel(es, TRUE, utext, FALSE, TRUE);
3552 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3553 /* send the notification after the selection start and end are set */
3554 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3555 EDIT_EM_ScrollCaret(es);
3556 HeapFree(GetProcessHeap(), 0, utext);
3557
3558 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3559 es->undo_insert_count, debugstr_w(es->undo_text));
3560 return TRUE;
3561 }
3562
3563
3564 /*********************************************************************
3565 *
3566 * WM_CHAR
3567 *
3568 */
3569 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3570 {
3571 BOOL control;
3572
3573 /* Protect read-only edit control from modification */
3574 if(es->style & ES_READONLY)
3575 return;
3576
3577 control = GetKeyState(VK_CONTROL) & 0x8000;
3578
3579 switch (c) {
3580 case '\r':
3581 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3582 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3583 break;
3584 case '\n':
3585 if (es->style & ES_MULTILINE) {
3586 if (es->style & ES_READONLY) {
3587 EDIT_MoveHome(es, FALSE);
3588 EDIT_MoveDown_ML(es, FALSE);
3589 } else {
3590 static const WCHAR cr_lfW[] = {'\r','\n',0};
3591 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3592 }
3593 }
3594 break;
3595 case '\t':
3596 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3597 {
3598 static const WCHAR tabW[] = {'\t',0};
3599 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3600 }
3601 break;
3602 case VK_BACK:
3603 if (!(es->style & ES_READONLY) && !control) {
3604 if (es->selection_start != es->selection_end)
3605 EDIT_WM_Clear(es);
3606 else {
3607 /* delete character left of caret */
3608 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3609 EDIT_MoveBackward(es, TRUE);
3610 EDIT_WM_Clear(es);
3611 }
3612 }
3613 break;
3614 case 0x03: /* ^C */
3615 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3616 break;
3617 case 0x16: /* ^V */
3618 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3619 break;
3620 case 0x18: /* ^X */
3621 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3622 break;
3623
3624 default:
3625 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3626 WCHAR str[2];
3627 str[0] = c;
3628 str[1] = '\0';
3629 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3630 }
3631 break;
3632 }
3633 }
3634
3635
3636 /*********************************************************************
3637 *
3638 * WM_COMMAND
3639 *
3640 */
3641 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3642 {
3643 if (code || control)
3644 return;
3645
3646 switch (id) {
3647 case EM_UNDO:
3648 EDIT_EM_Undo(es);
3649 break;
3650 case WM_CUT:
3651 EDIT_WM_Cut(es);
3652 break;
3653 case WM_COPY:
3654 EDIT_WM_Copy(es);
3655 break;
3656 case WM_PASTE:
3657 EDIT_WM_Paste(es);
3658 break;
3659 case WM_CLEAR:
3660 EDIT_WM_Clear(es);
3661 break;
3662 case EM_SETSEL:
3663 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3664 EDIT_EM_ScrollCaret(es);
3665 break;
3666 default:
3667 ERR("unknown menu item, please report\n");
3668 break;
3669 }
3670 }
3671
3672
3673 /*********************************************************************
3674 *
3675 * WM_CONTEXTMENU
3676 *
3677 * Note: the resource files resource/sysres_??.rc cannot define a
3678 * single popup menu. Hence we use a (dummy) menubar
3679 * containing the single popup menu as its first item.
3680 *
3681 * FIXME: the message identifiers have been chosen arbitrarily,
3682 * hence we use MF_BYPOSITION.
3683 * We might as well use the "real" values (anybody knows ?)
3684 * The menu definition is in resources/sysres_??.rc.
3685 * Once these are OK, we better use MF_BYCOMMAND here
3686 * (as we do in EDIT_WM_Command()).
3687 *
3688 */
3689 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3690 {
3691 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3692 HMENU popup = GetSubMenu(menu, 0);
3693 UINT start = es->selection_start;
3694 UINT end = es->selection_end;
3695
3696 ORDER_UINT(start, end);
3697
3698 /* undo */
3699 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3700 /* cut */
3701 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3702 /* copy */
3703 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3704 /* paste */
3705 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3706 /* delete */
3707 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3708 /* select all */
3709 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3710
3711 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3712 DestroyMenu(menu);
3713 }
3714
3715
3716 /*********************************************************************
3717 *
3718 * WM_COPY
3719 *
3720 */
3721 static void EDIT_WM_Copy(EDITSTATE *es)
3722 {
3723 INT s = min(es->selection_start, es->selection_end);
3724 INT e = max(es->selection_start, es->selection_end);
3725 HGLOBAL hdst;
3726 LPWSTR dst;
3727
3728 if (e == s) return;
3729
3730 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3731 dst = GlobalLock(hdst);
3732 strncpyW(dst, es->text + s, e - s);
3733 dst[e - s] = 0; /* ensure 0 termination */
3734 TRACE("%s\n", debugstr_w(dst));
3735 GlobalUnlock(hdst);
3736 OpenClipboard(es->hwndSelf);
3737 EmptyClipboard();
3738 SetClipboardData(CF_UNICODETEXT, hdst);
3739 CloseClipboard();
3740 }
3741
3742
3743 /*********************************************************************
3744 *
3745 * WM_CREATE
3746 *
3747 */
3748 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3749 {
3750 TRACE("%s\n", debugstr_w(name));
3751 /*
3752 * To initialize some final structure members, we call some helper
3753 * functions. However, since the EDITSTATE is not consistent (i.e.
3754 * not fully initialized), we should be very careful which
3755 * functions can be called, and in what order.
3756 */
3757 EDIT_WM_SetFont(es, 0, FALSE);
3758 EDIT_EM_EmptyUndoBuffer(es);
3759
3760 if (name && *name) {
3761 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
3762 /* if we insert text to the editline, the text scrolls out
3763 * of the window, as the caret is placed after the insert
3764 * pos normally; thus we reset es->selection... to 0 and
3765 * update caret
3766 */
3767 es->selection_start = es->selection_end = 0;
3768 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
3769 * Messages are only to be sent when the USER does something to
3770 * change the contents. So I am removing this EN_CHANGE
3771 *
3772 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3773 */
3774 EDIT_EM_ScrollCaret(es);
3775 }
3776 /* force scroll info update */
3777 EDIT_UpdateScrollInfo(es);
3778 /* The rule seems to return 1 here for success */
3779 /* Power Builder masked edit controls will crash */
3780 /* if not. */
3781 /* FIXME: is that in all cases so ? */
3782 return 1;
3783 }
3784
3785
3786 /*********************************************************************
3787 *
3788 * WM_DESTROY
3789 *
3790 */
3791 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
3792 {
3793 LINEDEF *pc, *pp;
3794
3795 if (es->hloc32W) {
3796 while (LocalUnlock(es->hloc32W)) ;
3797 LocalFree(es->hloc32W);
3798 }
3799 if (es->hloc32A) {
3800 while (LocalUnlock(es->hloc32A)) ;
3801 LocalFree(es->hloc32A);
3802 }
3803 if (es->hloc16) {
3804 HINSTANCE16 hInstance = GetWindowWord( es->hwndSelf, GWL_HINSTANCE );
3805 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3806 LOCAL_Free(hInstance, es->hloc16);
3807 }
3808
3809 pc = es->first_line_def;
3810 while (pc)
3811 {
3812 pp = pc->next;
3813 HeapFree(GetProcessHeap(), 0, pc);
3814 pc = pp;
3815 }
3816
3817 SetWindowLongW( es->hwndSelf, 0, 0 );
3818 HeapFree(GetProcessHeap(), 0, es);
3819
3820 return 0;
3821 }
3822
3823
3824 /*********************************************************************
3825 *
3826 * WM_ERASEBKGND
3827 *
3828 */
3829 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
3830 {
3831 HBRUSH brush;
3832 RECT rc;
3833
3834 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
3835 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
3836
3837 GetClientRect(es->hwndSelf, &rc);
3838 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3839 GetClipBox(dc, &rc);
3840 /*
3841 * FIXME: specs say that we should UnrealizeObject() the brush,
3842 * but the specs of UnrealizeObject() say that we shouldn't
3843 * unrealize a stock object. The default brush that
3844 * DefWndProc() returns is ... a stock object.
3845 */
3846 FillRect(dc, &rc, brush);
3847 return -1;
3848 }
3849
3850
3851 /*********************************************************************
3852 *
3853 * WM_GETTEXT
3854 *
3855 */
3856 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3857 {
3858 if(!count) return 0;
3859
3860 if(unicode)
3861 {
3862 LPWSTR textW = (LPWSTR)lParam;
3863 lstrcpynW(textW, es->text, count);
3864 return strlenW(textW);
3865 }
3866 else
3867 {
3868 LPSTR textA = (LPSTR)lParam;
3869 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3870 textA[count - 1] = 0; /* ensure 0 termination */
3871 return strlen(textA);
3872 }
3873 }
3874
3875 /*********************************************************************
3876 *
3877 * WM_HSCROLL
3878 *
3879 */
3880 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3881 {
3882 INT dx;
3883 INT fw;
3884
3885 if (!(es->style & ES_MULTILINE))
3886 return 0;
3887
3888 if (!(es->style & ES_AUTOHSCROLL))
3889 return 0;
3890
3891 dx = 0;
3892 fw = es->format_rect.right - es->format_rect.left;
3893 switch (action) {
3894 case SB_LINELEFT:
3895 TRACE("SB_LINELEFT\n");
3896 if (es->x_offset)
3897 dx = -es->char_width;
3898 break;
3899 case SB_LINERIGHT:
3900 TRACE("SB_LINERIGHT\n");
3901 if (es->x_offset < es->text_width)
3902 dx = es->char_width;
3903 break;
3904 case SB_PAGELEFT:
3905 TRACE("SB_PAGELEFT\n");
3906 if (es->x_offset)
3907 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3908 break;
3909 case SB_PAGERIGHT:
3910 TRACE("SB_PAGERIGHT\n");
3911 if (es->x_offset < es->text_width)
3912 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3913 break;
3914 case SB_LEFT:
3915 TRACE("SB_LEFT\n");
3916 if (es->x_offset)
3917 dx = -es->x_offset;
3918 break;
3919 case SB_RIGHT:
3920 TRACE("SB_RIGHT\n");
3921 if (es->x_offset < es->text_width)
3922 dx = es->text_width - es->x_offset;
3923 break;
3924 case SB_THUMBTRACK:
3925 TRACE("SB_THUMBTRACK %d\n", pos);
3926 es->flags |= EF_HSCROLL_TRACK;
3927 if(es->style & WS_HSCROLL)
3928 dx = pos - es->x_offset;
3929 else
3930 {
3931 INT fw, new_x;
3932 /* Sanity check */
3933 if(pos < 0 || pos > 100) return 0;
3934 /* Assume default scroll range 0-100 */
3935 fw = es->format_rect.right - es->format_rect.left;
3936 new_x = pos * (es->text_width - fw) / 100;
3937 dx = es->text_width ? (new_x - es->x_offset) : 0;
3938 }
3939 break;
3940 case SB_THUMBPOSITION:
3941 TRACE("SB_THUMBPOSITION %d\n", pos);
3942 es->flags &= ~EF_HSCROLL_TRACK;
3943 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3944 dx = pos - es->x_offset;
3945 else
3946 {
3947 INT fw, new_x;
3948 /* Sanity check */
3949 if(pos < 0 || pos > 100) return 0;
3950 /* Assume default scroll range 0-100 */
3951 fw = es->format_rect.right - es->format_rect.left;
3952 new_x = pos * (es->text_width - fw) / 100;
3953 dx = es->text_width ? (new_x - es->x_offset) : 0;
3954 }
3955 if (!dx) {
3956 /* force scroll info update */
3957 EDIT_UpdateScrollInfo(es);
3958 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
3959 }
3960 break;
3961 case SB_ENDSCROLL:
3962 TRACE("SB_ENDSCROLL\n");
3963 break;
3964 /*
3965 * FIXME : the next two are undocumented !
3966 * Are we doing the right thing ?
3967 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3968 * although it's also a regular control message.
3969 */
3970 case EM_GETTHUMB: /* this one is used by NT notepad */
3971 case EM_GETTHUMB16:
3972 {
3973 LRESULT ret;
3974 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3975 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3976 else
3977 {
3978 /* Assume default scroll range 0-100 */
3979 INT fw = es->format_rect.right - es->format_rect.left;
3980 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
3981 }
3982 TRACE("EM_GETTHUMB: returning %ld\n", ret);
3983 return ret;
3984 }
3985 case EM_LINESCROLL16:
3986 TRACE("EM_LINESCROLL16\n");
3987 dx = pos;
3988 break;
3989
3990 default:
3991 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
3992 action, action);
3993 return 0;
3994 }
3995 if (dx)
3996 {
3997 INT fw = es->format_rect.right - es->format_rect.left;
3998 /* check if we are going to move too far */
3999 if(es->x_offset + dx + fw > es->text_width)
4000 dx = es->text_width - fw - es->x_offset;
4001 if(dx)
4002 EDIT_EM_LineScroll_internal(es, dx, 0);
4003 }
4004 return 0;
4005 }
4006
4007
4008 /*********************************************************************
4009 *
4010 * EDIT_CheckCombo
4011 *
4012 */
4013 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4014 {
4015 HWND hLBox = es->hwndListBox;
4016 HWND hCombo;
4017 BOOL bDropped;
4018 int nEUI;
4019
4020 if (!hLBox)
4021 return FALSE;
4022
4023 hCombo = GetParent(es->hwndSelf);
4024 bDropped = TRUE;
4025 nEUI = 0;
4026
4027 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4028
4029 if (key == VK_UP || key == VK_DOWN)
4030 {
4031 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4032 nEUI = 1;
4033
4034 if (msg == WM_KEYDOWN || nEUI)
4035 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4036 }
4037
4038 switch (msg)
4039 {
4040 case WM_KEYDOWN:
4041 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4042 {
4043 /* make sure ComboLBox pops up */
4044 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4045 key = VK_F4;
4046 nEUI = 2;
4047 }
4048
4049 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4050 break;
4051
4052 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4053 if (nEUI)
4054 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4055 else
4056 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4057 break;
4058 }
4059
4060 if(nEUI == 2)
4061 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4062
4063 return TRUE;
4064 }
4065
4066
4067 /*********************************************************************
4068 *
4069 * WM_KEYDOWN
4070 *
4071 * Handling of special keys that don't produce a WM_CHAR
4072 * (i.e. non-printable keys) & Backspace & Delete
4073 *
4074 */
4075 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4076 {
4077 BOOL shift;
4078 BOOL control;
4079
4080 if (GetKeyState(VK_MENU) & 0x8000)
4081 return 0;
4082
4083 shift = GetKeyState(VK_SHIFT) & 0x8000;
4084 control = GetKeyState(VK_CONTROL) & 0x8000;
4085
4086 switch (key) {
4087 case VK_F4:
4088 case VK_UP:
4089 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4090 break;
4091
4092 /* fall through */
4093 case VK_LEFT:
4094 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4095 EDIT_MoveUp_ML(es, shift);
4096 else
4097 if (control)
4098 EDIT_MoveWordBackward(es, shift);
4099 else
4100 EDIT_MoveBackward(es, shift);
4101 break;
4102 case VK_DOWN:
4103 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4104 break;
4105 /* fall through */
4106 case VK_RIGHT:
4107 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4108 EDIT_MoveDown_ML(es, shift);
4109 else if (control)
4110 EDIT_MoveWordForward(es, shift);
4111 else
4112 EDIT_MoveForward(es, shift);
4113 break;
4114 case VK_HOME:
4115 EDIT_MoveHome(es, shift);
4116 break;
4117 case VK_END:
4118 EDIT_MoveEnd(es, shift);
4119 break;
4120 case VK_PRIOR:
4121 if (es->style & ES_MULTILINE)
4122 EDIT_MovePageUp_ML(es, shift);
4123 else
4124 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4125 break;
4126 case VK_NEXT:
4127 if (es->style & ES_MULTILINE)
4128 EDIT_MovePageDown_ML(es, shift);
4129 else
4130 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4131 break;
4132 case VK_DELETE:
4133 if (!(es->style & ES_READONLY) && !(shift && control)) {
4134 if (es->selection_start != es->selection_end) {
4135 if (shift)
4136 EDIT_WM_Cut(es);
4137 else
4138 EDIT_WM_Clear(es);
4139 } else {
4140 if (shift) {
4141 /* delete character left of caret */
4142 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4143 EDIT_MoveBackward(es, TRUE);
4144 EDIT_WM_Clear(es);
4145 } else if (control) {
4146 /* delete to end of line */
4147 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4148 EDIT_MoveEnd(es, TRUE);
4149 EDIT_WM_Clear(es);
4150 } else {
4151 /* delete character right of caret */
4152 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4153 EDIT_MoveForward(es, TRUE);
4154 EDIT_WM_Clear(es);
4155 }
4156 }
4157 }
4158 break;
4159 case VK_INSERT:
4160 if (shift) {
4161 if (!(es->style & ES_READONLY))
4162 EDIT_WM_Paste(es);
4163 } else if (control)
4164 EDIT_WM_Copy(es);
4165 break;
4166 case VK_RETURN:
4167 /* If the edit doesn't want the return send a message to the default object */
4168 if(!(es->style & ES_WANTRETURN))
4169 {
4170 HWND hwndParent = GetParent(es->hwndSelf);
4171 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4172 if (HIWORD(dw) == DC_HASDEFID)
4173 {
4174 SendMessageW( hwndParent, WM_COMMAND,
4175 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4176 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4177 }
4178 }
4179 break;
4180 }
4181 return 0;
4182 }
4183
4184
4185 /*********************************************************************
4186 *
4187 * WM_KILLFOCUS
4188 *
4189 */
4190 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4191 {
4192 es->flags &= ~EF_FOCUSED;
4193 DestroyCaret();
4194 if(!(es->style & ES_NOHIDESEL))
4195 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4196 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4197 return 0;
4198 }
4199
4200
4201 /*********************************************************************
4202 *
4203 * WM_LBUTTONDBLCLK
4204 *
4205 * The caret position has been set on the WM_LBUTTONDOWN message
4206 *
4207 */
4208 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4209 {
4210 INT s;
4211 INT e = es->selection_end;
4212 INT l;
4213 INT li;
4214 INT ll;
4215
4216 if (!(es->flags & EF_FOCUSED))
4217 return 0;
4218
4219 l = EDIT_EM_LineFromChar(es, e);
4220 li = EDIT_EM_LineIndex(es, l);
4221 ll = EDIT_EM_LineLength(es, e);
4222 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4223 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4224 EDIT_EM_SetSel(es, s, e, FALSE);
4225 EDIT_EM_ScrollCaret(es);
4226 return 0;
4227 }
4228
4229
4230 /*********************************************************************
4231 *
4232 * WM_LBUTTONDOWN
4233 *
4234 */
4235 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4236 {
4237 INT e;
4238 BOOL after_wrap;
4239
4240 SetFocus(es->hwndSelf);
4241 if (!(es->flags & EF_FOCUSED))
4242 return 0;
4243
4244 es->bCaptureState = TRUE;
4245 SetCapture(es->hwndSelf);
4246 EDIT_ConfinePoint(es, &x, &y);
4247 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4248 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4249 EDIT_EM_ScrollCaret(es);
4250 es->region_posx = es->region_posy = 0;
4251 SetTimer(es->hwndSelf, 0, 100, NULL);
4252 return 0;
4253 }
4254
4255
4256 /*********************************************************************
4257 *
4258 * WM_LBUTTONUP
4259 *
4260 */
4261 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4262 {
4263 if (es->bCaptureState) {
4264 KillTimer(es->hwndSelf, 0);
4265 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4266 }
4267 es->bCaptureState = FALSE;
4268 return 0;
4269 }
4270
4271
4272 /*********************************************************************
4273 *
4274 * WM_MBUTTONDOWN
4275 *
4276 */
4277 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4278 {
4279 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4280 return 0;
4281 }
4282
4283
4284 /*********************************************************************
4285 *
4286 * WM_MOUSEMOVE
4287 *
4288 */
4289 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4290 {
4291 INT e;
4292 BOOL after_wrap;
4293 INT prex, prey;
4294
4295 if (GetCapture() != es->hwndSelf)
4296 return 0;
4297
4298 /*
4299 * FIXME: gotta do some scrolling if outside client
4300 * area. Maybe reset the timer ?
4301 */
4302 prex = x; prey = y;
4303 EDIT_ConfinePoint(es, &x, &y);
4304 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4305 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4306 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4307 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4308 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4309 return 0;
4310 }
4311
4312
4313 /*********************************************************************
4314 *
4315 * WM_NCCREATE
4316 *
4317 * See also EDIT_WM_StyleChanged
4318 */
4319 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4320 {
4321 EDITSTATE *es;
4322 UINT alloc_size;
4323
4324 TRACE("Creating %s edit control, style = %08lx\n",
4325 unicode ? "Unicode" : "ANSI", lpcs->style);
4326
4327 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4328 return FALSE;
4329 SetWindowLongW( hwnd, 0, (LONG)es );
4330
4331 /*
4332 * Note: since the EDITSTATE has not been fully initialized yet,
4333 * we can't use any API calls that may send
4334 * WM_XXX messages before WM_NCCREATE is completed.
4335 */
4336
4337 es->is_unicode = unicode;
4338 es->style = lpcs->style;
4339
4340 es->bEnableState = !(es->style & WS_DISABLED);
4341
4342 es->hwndSelf = hwnd;
4343 /* Save parent, which will be notified by EN_* messages */
4344 es->hwndParent = lpcs->hwndParent;
4345
4346 if (es->style & ES_COMBO)
4347 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4348
4349 /* Number overrides lowercase overrides uppercase (at least it
4350 * does in Win95). However I'll bet that ES_NUMBER would be
4351 * invalid under Win 3.1.
4352 */
4353 if (es->style & ES_NUMBER) {
4354 ; /* do not override the ES_NUMBER */
4355 } else if (es->style & ES_LOWERCASE) {
4356 es->style &= ~ES_UPPERCASE;
4357 }
4358 if (es->style & ES_MULTILINE) {
4359 es->buffer_limit = BUFLIMIT_MULTI;
4360 if (es->style & WS_VSCROLL)
4361 es->style |= ES_AUTOVSCROLL;
4362 if (es->style & WS_HSCROLL)
4363 es->style |= ES_AUTOHSCROLL;
4364 es->style &= ~ES_PASSWORD;
4365 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4366 /* Confirmed - RIGHT overrides CENTER */
4367 if (es->style & ES_RIGHT)
4368 es->style &= ~ES_CENTER;
4369 es->style &= ~WS_HSCROLL;
4370 es->style &= ~ES_AUTOHSCROLL;
4371 }
4372
4373 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4374 es->style |= ES_AUTOVSCROLL;
4375 } else {
4376 es->buffer_limit = BUFLIMIT_SINGLE;
4377 if (WIN31_LOOK == TWEAK_WineLook ||
4378 WIN95_LOOK == TWEAK_WineLook) {
4379 es->style &= ~ES_CENTER;
4380 es->style &= ~ES_RIGHT;
4381 } else {
4382 if (es->style & ES_RIGHT)
4383 es->style &= ~ES_CENTER;
4384 }
4385 es->style &= ~WS_HSCROLL;
4386 es->style &= ~WS_VSCROLL;
4387 es->style &= ~ES_AUTOVSCROLL;
4388 es->style &= ~ES_WANTRETURN;
4389 if (es->style & ES_PASSWORD)
4390 es->password_char = '*';
4391
4392 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4393 es->style |= ES_AUTOHSCROLL;
4394 }
4395
4396 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4397 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4398 return FALSE;
4399 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4400
4401 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4402 return FALSE;
4403 es->undo_buffer_size = es->buffer_size;
4404
4405 if (es->style & ES_MULTILINE)
4406 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4407 return FALSE;
4408 es->line_count = 1;
4409
4410 /*
4411 * In Win95 look and feel, the WS_BORDER style is replaced by the
4412 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4413 * control a non client area. Not always. This coordinates in some
4414 * way with the window creation code in dialog.c When making
4415 * modifications please ensure that the code still works for edit
4416 * controls created directly with style 0x50800000, exStyle 0 (
4417 * which should have a single pixel border)
4418 */
4419 if (TWEAK_WineLook != WIN31_LOOK)
4420 {
4421 es->style &= ~WS_BORDER;
4422 }
4423 else
4424 {
4425 if ((es->style & WS_BORDER) && !(es->style & WS_DLGFRAME))
4426 SetWindowLongW( hwnd, GWL_STYLE,
4427 GetWindowLongW( hwnd, GWL_STYLE ) & ~WS_BORDER );
4428 }
4429
4430 return TRUE;
4431 }
4432
4433 /*********************************************************************
4434 *
4435 * WM_PAINT
4436 *
4437 */
4438 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam)
4439 {
4440 PAINTSTRUCT ps;
4441 INT i;
4442 HDC dc;
4443 HFONT old_font = 0;
4444 RECT rc;
4445 RECT rcLine;
4446 RECT rcRgn;
4447 BOOL rev = es->bEnableState &&
4448 ((es->flags & EF_FOCUSED) ||
4449 (es->style & ES_NOHIDESEL));
4450 if (!wParam)
4451 dc = BeginPaint(es->hwndSelf, &ps);
4452 else
4453 dc = (HDC) wParam;
4454 if(es->style & WS_BORDER) {
4455 GetClientRect(es->hwndSelf, &rc);
4456 if(es->style & ES_MULTILINE) {
4457 if(es->style & WS_HSCROLL) rc.bottom++;
4458 if(es->style & WS_VSCROLL) rc.right++;
4459 }
4460 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4461 }
4462 IntersectClipRect(dc, es->format_rect.left,
4463 es->format_rect.top,
4464 es->format_rect.right,
4465 es->format_rect.bottom);
4466 if (es->style & ES_MULTILINE) {
4467 GetClientRect(es->hwndSelf, &rc);
4468 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4469 }
4470 if (es->font)
4471 old_font = SelectObject(dc, es->font);
4472 EDIT_NotifyCtlColor(es, dc);
4473
4474 if (!es->bEnableState)
4475 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4476 GetClipBox(dc, &rcRgn);
4477 if (es->style & ES_MULTILINE) {
4478 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4479 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4480 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4481 if (IntersectRect(&rc, &rcRgn, &rcLine))
4482 EDIT_PaintLine(es, dc, i, rev);
4483 }
4484 } else {
4485 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4486 if (IntersectRect(&rc, &rcRgn, &rcLine))
4487 EDIT_PaintLine(es, dc, 0, rev);
4488 }
4489 if (es->font)
4490 SelectObject(dc, old_font);
4491
4492 if (!wParam)
4493 EndPaint(es->hwndSelf, &ps);
4494 }
4495
4496
4497 /*********************************************************************
4498 *
4499 * WM_PASTE
4500 *
4501 */
4502 static void EDIT_WM_Paste(EDITSTATE *es)
4503 {
4504 HGLOBAL hsrc;
4505 LPWSTR src;
4506
4507 /* Protect read-only edit control from modification */
4508 if(es->style & ES_READONLY)
4509 return;
4510
4511 OpenClipboard(es->hwndSelf);
4512 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4513 src = (LPWSTR)GlobalLock(hsrc);
4514 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4515 GlobalUnlock(hsrc);
4516 }
4517 CloseClipboard();
4518 }
4519
4520
4521 /*********************************************************************
4522 *
4523 * WM_SETFOCUS
4524 *
4525 */
4526 static void EDIT_WM_SetFocus(EDITSTATE *es)
4527 {
4528 es->flags |= EF_FOCUSED;
4529 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4530 EDIT_SetCaretPos(es, es->selection_end,
4531 es->flags & EF_AFTER_WRAP);
4532 if(!(es->style & ES_NOHIDESEL))
4533 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4534 ShowCaret(es->hwndSelf);
4535 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4536 }
4537
4538
4539 /*********************************************************************
4540 *
4541 * WM_SETFONT
4542 *
4543 * With Win95 look the margins are set to default font value unless
4544 * the system font (font == 0) is being set, in which case they are left
4545 * unchanged.
4546 *
4547 */
4548 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4549 {
4550 TEXTMETRICW tm;
4551 HDC dc;
4552 HFONT old_font = 0;
4553 RECT r;
4554
4555 es->font = font;
4556 dc = GetDC(es->hwndSelf);
4557 if (font)
4558 old_font = SelectObject(dc, font);
4559 GetTextMetricsW(dc, &tm);
4560 es->line_height = tm.tmHeight;
4561 es->char_width = tm.tmAveCharWidth;
4562 if (font)
4563 SelectObject(dc, old_font);
4564 ReleaseDC(es->hwndSelf, dc);
4565 if (font && (TWEAK_WineLook > WIN31_LOOK))
4566 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4567 EC_USEFONTINFO, EC_USEFONTINFO);
4568
4569 /* Force the recalculation of the format rect for each font change */
4570 GetClientRect(es->hwndSelf, &r);
4571 EDIT_SetRectNP(es, &r);
4572
4573 if (es->style & ES_MULTILINE)
4574 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4575 else
4576 EDIT_CalcLineWidth_SL(es);
4577
4578 if (redraw)
4579 EDIT_UpdateText(es, NULL, TRUE);
4580 if (es->flags & EF_FOCUSED) {
4581 DestroyCaret();
4582 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4583 EDIT_SetCaretPos(es, es->selection_end,
4584 es->flags & EF_AFTER_WRAP);
4585 ShowCaret(es->hwndSelf);
4586 }
4587 }
4588
4589
4590 /*********************************************************************
4591 *
4592 * WM_SETTEXT
4593 *
4594 * NOTES
4595 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4596 * The modified flag is reset. No notifications are sent.
4597 *
4598 * For single-line controls, reception of WM_SETTEXT triggers:
4599 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4600 *
4601 */
4602 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode)
4603 {
4604 LPWSTR text = NULL;
4605
4606 if(unicode)
4607 text = (LPWSTR)lParam;
4608 else if (lParam)
4609 {
4610 LPCSTR textA = (LPCSTR)lParam;
4611 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4612 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4613 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4614 }
4615
4616 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4617 if (text) {
4618 TRACE("%s\n", debugstr_w(text));
4619 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
4620 if(!unicode)
4621 HeapFree(GetProcessHeap(), 0, text);
4622 } else {
4623 static const WCHAR empty_stringW[] = {0};
4624 TRACE("<NULL>\n");
4625 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
4626 }
4627 es->x_offset = 0;
4628 es->flags &= ~EF_MODIFIED;
4629 EDIT_EM_SetSel(es, 0, 0, FALSE);
4630 /* Send the notification after the selection start and end have been set
4631 * edit control doesn't send notification on WM_SETTEXT
4632 * if it is multiline, or it is part of combobox
4633 */
4634 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4635 {
4636 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4637 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4638 }
4639 EDIT_EM_ScrollCaret(es);
4640 }
4641
4642
4643 /*********************************************************************
4644 *
4645 * WM_SIZE
4646 *
4647 */
4648 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
4649 {
4650 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4651 RECT rc;
4652 TRACE("width = %d, height = %d\n", width, height);
4653 SetRect(&rc, 0, 0, width, height);
4654 EDIT_SetRectNP(es, &rc);
4655 EDIT_UpdateText(es, NULL, TRUE);
4656 }
4657 }
4658
4659
4660 /*********************************************************************
4661 *
4662 * WM_STYLECHANGED
4663 *
4664 * This message is sent by SetWindowLong on having changed either the Style
4665 * or the extended style.
4666 *
4667 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4668 *
4669 * See also EDIT_WM_NCCreate
4670 *
4671 * It appears that the Windows version of the edit control allows the style
4672 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4673 * style variable which will generally be different. In this function we
4674 * update the internal style based on what changed in the externally visible
4675 * style.
4676 *
4677 * Much of this content as based upon the MSDN, especially:
4678 * Platform SDK Documentation -> User Interface Services ->
4679 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4680 * Edit Control Styles
4681 */
4682 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4683 {
4684 if (GWL_STYLE == which) {
4685 DWORD style_change_mask;
4686 DWORD new_style;
4687 /* Only a subset of changes can be applied after the control
4688 * has been created.
4689 */
4690 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4691 ES_NUMBER;
4692 if (es->style & ES_MULTILINE)
4693 style_change_mask |= ES_WANTRETURN;
4694
4695 new_style = style->styleNew & style_change_mask;
4696
4697 /* Number overrides lowercase overrides uppercase (at least it
4698 * does in Win95). However I'll bet that ES_NUMBER would be
4699 * invalid under Win 3.1.
4700 */
4701 if (new_style & ES_NUMBER) {
4702 ; /* do not override the ES_NUMBER */
4703 } else if (new_style & ES_LOWERCASE) {
4704 new_style &= ~ES_UPPERCASE;
4705 }
4706
4707 es->style = (es->style & ~style_change_mask) | new_style;
4708 } else if (GWL_EXSTYLE == which) {
4709 ; /* FIXME - what is needed here */
4710 } else {
4711 WARN ("Invalid style change %d\n",which);
4712 }
4713
4714 return 0;
4715 }
4716
4717 /*********************************************************************
4718 *
4719 * WM_SYSKEYDOWN
4720 *
4721 */
4722 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4723 {
4724 if ((key == VK_BACK) && (key_data & 0x2000)) {
4725 if (EDIT_EM_CanUndo(es))
4726 EDIT_EM_Undo(es);
4727 return 0;
4728 } else if (key == VK_UP || key == VK_DOWN) {
4729 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4730 return 0;
4731 }
4732 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4733 }
4734
4735
4736 /*********************************************************************
4737 *
4738 * WM_TIMER
4739 *
4740 */
4741 static void EDIT_WM_Timer(EDITSTATE *es)
4742 {
4743 if (es->region_posx < 0) {
4744 EDIT_MoveBackward(es, TRUE);
4745 } else if (es->region_posx > 0) {
4746 EDIT_MoveForward(es, TRUE);
4747 }
4748 /*
4749 * FIXME: gotta do some vertical scrolling here, like
4750 * EDIT_EM_LineScroll(hwnd, 0, 1);
4751 */
4752 }
4753
4754 /*********************************************************************
4755 *
4756 * WM_VSCROLL
4757 *
4758 */
4759 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4760 {
4761 INT dy;
4762
4763 if (!(es->style & ES_MULTILINE))
4764 return 0;
4765
4766 if (!(es->style & ES_AUTOVSCROLL))
4767 return 0;
4768
4769 dy = 0;
4770 switch (action) {
4771 case SB_LINEUP:
4772 case SB_LINEDOWN:
4773 case SB_PAGEUP:
4774 case SB_PAGEDOWN:
4775 TRACE("action %d\n", action);
4776 EDIT_EM_Scroll(es, action);
4777 return 0;
4778 case SB_TOP:
4779 TRACE("SB_TOP\n");
4780 dy = -es->y_offset;
4781 break;
4782 case SB_BOTTOM:
4783 TRACE("SB_BOTTOM\n");
4784 dy = es->line_count - 1 - es->y_offset;
4785 break;
4786 case SB_THUMBTRACK:
4787 TRACE("SB_THUMBTRACK %d\n", pos);
4788 es->flags |= EF_VSCROLL_TRACK;
4789 if(es->style & WS_VSCROLL)
4790 dy = pos - es->y_offset;
4791 else
4792 {
4793 /* Assume default scroll range 0-100 */
4794 INT vlc, new_y;
4795 /* Sanity check */
4796 if(pos < 0 || pos > 100) return 0;
4797 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4798 new_y = pos * (es->line_count - vlc) / 100;
4799 dy = es->line_count ? (new_y - es->y_offset) : 0;
4800 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4801 es->line_count, es->y_offset, pos, dy);
4802 }
4803 break;
4804 case SB_THUMBPOSITION:
4805 TRACE("SB_THUMBPOSITION %d\n", pos);
4806 es->flags &= ~EF_VSCROLL_TRACK;
4807 if(es->style & WS_VSCROLL)
4808 dy = pos - es->y_offset;
4809 else
4810 {
4811 /* Assume default scroll range 0-100 */
4812 INT vlc, new_y;
4813 /* Sanity check */
4814 if(pos < 0 || pos > 100) return 0;
4815 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4816 new_y = pos * (es->line_count - vlc) / 100;
4817 dy = es->line_count ? (new_y - es->y_offset) : 0;
4818 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4819 es->line_count, es->y_offset, pos, dy);
4820 }
4821 if (!dy)
4822 {
4823 /* force scroll info update */
4824 EDIT_UpdateScrollInfo(es);
4825 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
4826 }
4827 break;
4828 case SB_ENDSCROLL:
4829 TRACE("SB_ENDSCROLL\n");
4830 break;
4831 /*
4832 * FIXME : the next two are undocumented !
4833 * Are we doing the right thing ?
4834 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4835 * although it's also a regular control message.
4836 */
4837 case EM_GETTHUMB: /* this one is used by NT notepad */
4838 case EM_GETTHUMB16:
4839 {
4840 LRESULT ret;
4841 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4842 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4843 else
4844 {
4845 /* Assume default scroll range 0-100 */
4846 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4847 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4848 }
4849 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4850 return ret;
4851 }
4852 case EM_LINESCROLL16:
4853 TRACE("EM_LINESCROLL16 %d\n", pos);
4854 dy = pos;
4855 break;
4856
4857 default:
4858 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4859 action, action);
4860 return 0;
4861 }
4862 if (dy)
4863 EDIT_EM_LineScroll(es, 0, dy);
4864 return 0;
4865 }
4866
4867 /*********************************************************************
4868 *
4869 * EDIT_UpdateText
4870 *
4871 */
4872 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
4873 {
4874 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4875 InvalidateRgn(es->hwndSelf, hrgn, bErase);
4876 }
4877
4878
4879 /*********************************************************************
4880 *
4881 * EDIT_UpdateText
4882 *
4883 */
4884 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
4885 {
4886 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4887 InvalidateRect(es->hwndSelf, rc, bErase);
4888 }
Maarten's multimedia branch