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A first stab at wcstod().
[wine/hacks.git] / controls / edit.c
blob3a0945356e65f3487b51d64c3ee6a3e9e5ea5959
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_GLOBALCLASS | 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 MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
776 EDIT_WM_Char(es, charW);
777 break;
778 }
779 /* fall through */
780 case WM_CHAR:
781 {
782 WCHAR charW;
783
784 if(unicode)
785 charW = wParam;
786 else
787 {
788 CHAR charA = wParam;
789 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
790 }
791
792 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
793 {
794 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
795 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
796 break;
797 }
798 EDIT_WM_Char(es, charW);
799 break;
800 }
801
802 case WM_CLEAR:
803 EDIT_WM_Clear(es);
804 break;
805
806 case WM_COMMAND:
807 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
808 break;
809
810 case WM_CONTEXTMENU:
811 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
812 break;
813
814 case WM_COPY:
815 EDIT_WM_Copy(es);
816 break;
817
818 case WM_CREATE:
819 if(unicode)
820 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
821 else
822 {
823 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
824 LPWSTR nameW = NULL;
825 if(nameA)
826 {
827 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
828 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
829 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
830 }
831 result = EDIT_WM_Create(es, nameW);
832 if(nameW)
833 HeapFree(GetProcessHeap(), 0, nameW);
834 }
835 break;
836
837 case WM_CUT:
838 EDIT_WM_Cut(es);
839 break;
840
841 case WM_ENABLE:
842 es->bEnableState = (BOOL) wParam;
843 EDIT_UpdateText(es, NULL, TRUE);
844 break;
845
846 case WM_ERASEBKGND:
847 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
848 break;
849
850 case WM_GETFONT:
851 result = (LRESULT)es->font;
852 break;
853
854 case WM_GETTEXT:
855 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
856 break;
857
858 case WM_GETTEXTLENGTH:
859 if (unicode) result = strlenW(es->text);
860 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
861 NULL, 0, NULL, NULL );
862 break;
863
864 case WM_HSCROLL:
865 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
866 break;
867
868 case WM_KEYDOWN:
869 result = EDIT_WM_KeyDown(es, (INT)wParam);
870 break;
871
872 case WM_KILLFOCUS:
873 result = EDIT_WM_KillFocus(es);
874 break;
875
876 case WM_LBUTTONDBLCLK:
877 result = EDIT_WM_LButtonDblClk(es);
878 break;
879
880 case WM_LBUTTONDOWN:
881 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
882 break;
883
884 case WM_LBUTTONUP:
885 result = EDIT_WM_LButtonUp(es);
886 break;
887
888 case WM_MBUTTONDOWN:
889 result = EDIT_WM_MButtonDown(es);
890 break;
891
892 case WM_MOUSEACTIVATE:
893 /*
894 * FIXME: maybe DefWindowProc() screws up, but it seems that
895 * modeless dialog boxes need this. If we don't do this, the focus
896 * will _not_ be set by DefWindowProc() for edit controls in a
897 * modeless dialog box ???
898 */
899 SetFocus(hwnd);
900 result = MA_ACTIVATE;
901 break;
902
903 case WM_MOUSEMOVE:
904 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
905 break;
906
907 case WM_PAINT:
908 EDIT_WM_Paint(es, wParam);
909 break;
910
911 case WM_PASTE:
912 EDIT_WM_Paste(es);
913 break;
914
915 case WM_SETFOCUS:
916 EDIT_WM_SetFocus(es);
917 break;
918
919 case WM_SETFONT:
920 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
921 break;
922
923 case WM_SETREDRAW:
924 /* FIXME: actually set an internal flag and behave accordingly */
925 break;
926
927 case WM_SETTEXT:
928 EDIT_WM_SetText(es, lParam, unicode);
929 result = TRUE;
930 break;
931
932 case WM_SIZE:
933 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
934 break;
935
936 case WM_STYLECHANGED:
937 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
938 break;
939
940 case WM_STYLECHANGING:
941 result = 0; /* See EDIT_WM_StyleChanged */
942 break;
943
944 case WM_SYSKEYDOWN:
945 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
946 break;
947
948 case WM_TIMER:
949 EDIT_WM_Timer(es);
950 break;
951
952 case WM_VSCROLL:
953 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
954 break;
955
956 case WM_MOUSEWHEEL:
957 {
958 int gcWheelDelta = 0;
959 UINT pulScrollLines = 3;
960 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
961
962 if (wParam & (MK_SHIFT | MK_CONTROL)) {
963 result = DefWindowProcW(hwnd, msg, wParam, lParam);
964 break;
965 }
966 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
967 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
968 {
969 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
970 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
971 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
972 }
973 }
974 break;
975 default:
976 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
977 break;
978 }
979
980 if (es) EDIT_UnlockBuffer(es, FALSE);
981
982 return result;
983 }
984
985 /*********************************************************************
986 *
987 * EditWndProcW (USER32.@)
988 */
989 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
990 {
991 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
992 }
993
994 /*********************************************************************
995 *
996 * EditWndProc (USER32.@)
997 */
998 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
999 {
1000 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1001 }
1002
1003 /*********************************************************************
1004 *
1005 * EDIT_BuildLineDefs_ML
1006 *
1007 * Build linked list of text lines.
1008 * Lines can end with '\0' (last line), a character (if it is wrapped),
1009 * a soft return '\r\r\n' or a hard return '\r\n'
1010 *
1011 */
1012 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1013 {
1014 HDC dc;
1015 HFONT old_font = 0;
1016 LPWSTR current_position, cp;
1017 INT fw;
1018 LINEDEF *current_line;
1019 LINEDEF *previous_line;
1020 LINEDEF *start_line;
1021 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1022 INT line_count = es->line_count;
1023 INT orig_net_length;
1024 RECT rc;
1025
1026 if (istart == iend && delta == 0)
1027 return;
1028
1029 dc = GetDC(es->hwndSelf);
1030 if (es->font)
1031 old_font = SelectObject(dc, es->font);
1032
1033 previous_line = NULL;
1034 current_line = es->first_line_def;
1035
1036 /* Find starting line. istart must lie inside an existing line or
1037 * at the end of buffer */
1038 do {
1039 if (istart < current_line->index + current_line->length ||
1040 current_line->ending == END_0)
1041 break;
1042
1043 previous_line = current_line;
1044 current_line = current_line->next;
1045 line_index++;
1046 } while (current_line);
1047
1048 if (!current_line) /* Error occurred start is not inside previous buffer */
1049 {
1050 FIXME(" modification occurred outside buffer\n");
1051 ReleaseDC(es->hwndSelf, dc);
1052 return;
1053 }
1054
1055 /* Remember start of modifications in order to calculate update region */
1056 nstart_line = line_index;
1057 nstart_index = current_line->index;
1058
1059 /* We must start to reformat from the previous line since the modifications
1060 * may have caused the line to wrap upwards. */
1061 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1062 {
1063 line_index--;
1064 current_line = previous_line;
1065 }
1066 start_line = current_line;
1067
1068 fw = es->format_rect.right - es->format_rect.left;
1069 current_position = es->text + current_line->index;
1070 do {
1071 if (current_line != start_line)
1072 {
1073 if (!current_line || current_line->index + delta > current_position - es->text)
1074 {
1075 /* The buffer has been expanded, create a new line and
1076 insert it into the link list */
1077 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1078 new_line->next = previous_line->next;
1079 previous_line->next = new_line;
1080 current_line = new_line;
1081 es->line_count++;
1082 }
1083 else if (current_line->index + delta < current_position - es->text)
1084 {
1085 /* The previous line merged with this line so we delete this extra entry */
1086 previous_line->next = current_line->next;
1087 HeapFree(GetProcessHeap(), 0, current_line);
1088 current_line = previous_line->next;
1089 es->line_count--;
1090 continue;
1091 }
1092 else /* current_line->index + delta == current_position */
1093 {
1094 if (current_position - es->text > iend)
1095 break; /* We reached end of line modifications */
1096 /* else recalulate this line */
1097 }
1098 }
1099
1100 current_line->index = current_position - es->text;
1101 orig_net_length = current_line->net_length;
1102
1103 /* Find end of line */
1104 cp = current_position;
1105 while (*cp) {
1106 if (*cp == '\n') break;
1107 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1108 break;
1109 cp++;
1110 }
1111
1112 /* Mark type of line termination */
1113 if (!(*cp)) {
1114 current_line->ending = END_0;
1115 current_line->net_length = strlenW(current_position);
1116 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1117 current_line->ending = END_SOFT;
1118 current_line->net_length = cp - current_position - 1;
1119 } else if (*cp == '\n') {
1120 current_line->ending = END_RICH;
1121 current_line->net_length = cp - current_position;
1122 } else {
1123 current_line->ending = END_HARD;
1124 current_line->net_length = cp - current_position;
1125 }
1126
1127 /* Calculate line width */
1128 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1129 current_position, current_line->net_length,
1130 es->tabs_count, es->tabs));
1131
1132 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1133 if ((!(es->style & ES_AUTOHSCROLL)) && (current_line->width > fw)) {
1134 INT next = 0;
1135 INT prev;
1136 do {
1137 prev = next;
1138 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1139 prev + 1, current_line->net_length, WB_RIGHT);
1140 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1141 current_position, next, es->tabs_count, es->tabs));
1142 } while (current_line->width <= fw);
1143 if (!prev) { /* Didn't find a line break so force a break */
1144 next = 0;
1145 do {
1146 prev = next;
1147 next++;
1148 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1149 current_position, next, es->tabs_count, es->tabs));
1150 } while (current_line->width <= fw);
1151 if (!prev)
1152 prev = 1;
1153 }
1154
1155 /* If the first line we are calculating, wrapped before istart, we must
1156 * adjust istart in order for this to be reflected in the update region. */
1157 if (current_line->index == nstart_index && istart > current_line->index + prev)
1158 istart = current_line->index + prev;
1159 /* else if we are updating the previous line before the first line we
1160 * are re-calculating and it expanded */
1161 else if (current_line == start_line &&
1162 current_line->index != nstart_index && orig_net_length < prev)
1163 {
1164 /* Line expanded due to an upwards line wrap so we must partially include
1165 * previous line in update region */
1166 nstart_line = line_index;
1167 nstart_index = current_line->index;
1168 istart = current_line->index + orig_net_length;
1169 }
1170
1171 current_line->net_length = prev;
1172 current_line->ending = END_WRAP;
1173 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1174 current_line->net_length, es->tabs_count, es->tabs));
1175 }
1176
1177
1178 /* Adjust length to include line termination */
1179 switch (current_line->ending) {
1180 case END_SOFT:
1181 current_line->length = current_line->net_length + 3;
1182 break;
1183 case END_RICH:
1184 current_line->length = current_line->net_length + 1;
1185 break;
1186 case END_HARD:
1187 current_line->length = current_line->net_length + 2;
1188 break;
1189 case END_WRAP:
1190 case END_0:
1191 current_line->length = current_line->net_length;
1192 break;
1193 }
1194 es->text_width = max(es->text_width, current_line->width);
1195 current_position += current_line->length;
1196 previous_line = current_line;
1197 current_line = current_line->next;
1198 line_index++;
1199 } while (previous_line->ending != END_0);
1200
1201 /* Finish adjusting line indexes by delta or remove hanging lines */
1202 if (previous_line->ending == END_0)
1203 {
1204 LINEDEF *pnext = NULL;
1205
1206 previous_line->next = NULL;
1207 while (current_line)
1208 {
1209 pnext = current_line->next;
1210 HeapFree(GetProcessHeap(), 0, current_line);
1211 current_line = pnext;
1212 es->line_count--;
1213 }
1214 }
1215 else
1216 {
1217 while (current_line)
1218 {
1219 current_line->index += delta;
1220 current_line = current_line->next;
1221 }
1222 }
1223
1224 /* Calculate rest of modification rectangle */
1225 if (hrgn)
1226 {
1227 HRGN tmphrgn;
1228 /*
1229 * We calculate two rectangles. One for the first line which may have
1230 * an indent with respect to the format rect. The other is a format-width
1231 * rectangle that spans the rest of the lines that changed or moved.
1232 */
1233 rc.top = es->format_rect.top + nstart_line * es->line_height -
1234 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1235 rc.bottom = rc.top + es->line_height;
1236 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1237 es->text + nstart_index, istart - nstart_index,
1238 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1239 rc.right = es->format_rect.right;
1240 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1241
1242 rc.top = rc.bottom;
1243 rc.left = es->format_rect.left;
1244 rc.right = es->format_rect.right;
1245 /*
1246 * If lines were added or removed we must re-paint the remainder of the
1247 * lines since the remaining lines were either shifted up or down.
1248 */
1249 if (line_count < es->line_count) /* We added lines */
1250 rc.bottom = es->line_count * es->line_height;
1251 else if (line_count > es->line_count) /* We removed lines */
1252 rc.bottom = line_count * es->line_height;
1253 else
1254 rc.bottom = line_index * es->line_height;
1255 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1256 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1257 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1258 DeleteObject(tmphrgn);
1259 }
1260
1261 if (es->font)
1262 SelectObject(dc, old_font);
1263
1264 ReleaseDC(es->hwndSelf, dc);
1265 }
1266
1267 /*********************************************************************
1268 *
1269 * EDIT_CalcLineWidth_SL
1270 *
1271 */
1272 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1273 {
1274 es->text_width = (short)LOWORD(EDIT_EM_PosFromChar(es, strlenW(es->text), FALSE));
1275 }
1276
1277 /*********************************************************************
1278 *
1279 * EDIT_CallWordBreakProc
1280 *
1281 * Call appropriate WordBreakProc (internal or external).
1282 *
1283 * Note: The "start" argument should always be an index referring
1284 * to es->text. The actual wordbreak proc might be
1285 * 16 bit, so we can't always pass any 32 bit LPSTR.
1286 * Hence we assume that es->text is the buffer that holds
1287 * the string under examination (we can decide this for ourselves).
1288 *
1289 */
1290 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1291 {
1292 INT ret, iWndsLocks;
1293
1294 /* To avoid any deadlocks, all the locks on the window structures
1295 must be suspended before the control is passed to the application */
1296 iWndsLocks = WIN_SuspendWndsLock();
1297
1298 if (es->word_break_proc16) {
1299 HGLOBAL16 hglob16;
1300 SEGPTR segptr;
1301 INT countA;
1302 WORD args[5];
1303 DWORD result;
1304
1305 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1306 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1307 segptr = K32WOWGlobalLock16(hglob16);
1308 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1309 args[4] = SELECTOROF(segptr);
1310 args[3] = OFFSETOF(segptr);
1311 args[2] = index;
1312 args[1] = countA;
1313 args[0] = action;
1314 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1315 ret = LOWORD(result);
1316 GlobalUnlock16(hglob16);
1317 GlobalFree16(hglob16);
1318 }
1319 else if (es->word_break_proc)
1320 {
1321 if(es->is_unicode)
1322 {
1323 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1324
1325 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1326 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1327 ret = wbpW(es->text + start, index, count, action);
1328 }
1329 else
1330 {
1331 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1332 INT countA;
1333 CHAR *textA;
1334
1335 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1336 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1337 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1338 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1339 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1340 ret = wbpA(textA, index, countA, action);
1341 HeapFree(GetProcessHeap(), 0, textA);
1342 }
1343 }
1344 else
1345 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1346
1347 WIN_RestoreWndsLock(iWndsLocks);
1348 return ret;
1349 }
1350
1351
1352 /*********************************************************************
1353 *
1354 * EDIT_CharFromPos
1355 *
1356 * Beware: This is not the function called on EM_CHARFROMPOS
1357 * The position _can_ be outside the formatting / client
1358 * rectangle
1359 * The return value is only the character index
1360 *
1361 */
1362 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1363 {
1364 INT index;
1365 HDC dc;
1366 HFONT old_font = 0;
1367
1368 if (es->style & ES_MULTILINE) {
1369 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1370 INT line_index = 0;
1371 LINEDEF *line_def = es->first_line_def;
1372 INT low, high;
1373 while ((line > 0) && line_def->next) {
1374 line_index += line_def->length;
1375 line_def = line_def->next;
1376 line--;
1377 }
1378 x += es->x_offset - es->format_rect.left;
1379 if (x >= line_def->width) {
1380 if (after_wrap)
1381 *after_wrap = (line_def->ending == END_WRAP);
1382 return line_index + line_def->net_length;
1383 }
1384 if (x <= 0) {
1385 if (after_wrap)
1386 *after_wrap = FALSE;
1387 return line_index;
1388 }
1389 dc = GetDC(es->hwndSelf);
1390 if (es->font)
1391 old_font = SelectObject(dc, es->font);
1392 low = line_index + 1;
1393 high = line_index + line_def->net_length + 1;
1394 while (low < high - 1)
1395 {
1396 INT mid = (low + high) / 2;
1397 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1398 else low = mid;
1399 }
1400 index = low;
1401
1402 if (after_wrap)
1403 *after_wrap = ((index == line_index + line_def->net_length) &&
1404 (line_def->ending == END_WRAP));
1405 } else {
1406 LPWSTR text;
1407 SIZE size;
1408 if (after_wrap)
1409 *after_wrap = FALSE;
1410 x -= es->format_rect.left;
1411 if (!x)
1412 return es->x_offset;
1413 text = EDIT_GetPasswordPointer_SL(es);
1414 dc = GetDC(es->hwndSelf);
1415 if (es->font)
1416 old_font = SelectObject(dc, es->font);
1417 if (x < 0)
1418 {
1419 INT low = 0;
1420 INT high = es->x_offset;
1421 while (low < high - 1)
1422 {
1423 INT mid = (low + high) / 2;
1424 GetTextExtentPoint32W( dc, text + mid,
1425 es->x_offset - mid, &size );
1426 if (size.cx > -x) low = mid;
1427 else high = mid;
1428 }
1429 index = low;
1430 }
1431 else
1432 {
1433 INT low = es->x_offset;
1434 INT high = strlenW(es->text) + 1;
1435 while (low < high - 1)
1436 {
1437 INT mid = (low + high) / 2;
1438 GetTextExtentPoint32W( dc, text + es->x_offset,
1439 mid - es->x_offset, &size );
1440 if (size.cx > x) high = mid;
1441 else low = mid;
1442 }
1443 index = low;
1444 }
1445 if (es->style & ES_PASSWORD)
1446 HeapFree(GetProcessHeap(), 0, text);
1447 }
1448 if (es->font)
1449 SelectObject(dc, old_font);
1450 ReleaseDC(es->hwndSelf, dc);
1451 return index;
1452 }
1453
1454
1455 /*********************************************************************
1456 *
1457 * EDIT_ConfinePoint
1458 *
1459 * adjusts the point to be within the formatting rectangle
1460 * (so CharFromPos returns the nearest _visible_ character)
1461 *
1462 */
1463 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1464 {
1465 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1466 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1467 }
1468
1469
1470 /*********************************************************************
1471 *
1472 * EDIT_GetLineRect
1473 *
1474 * Calculates the bounding rectangle for a line from a starting
1475 * column to an ending column.
1476 *
1477 */
1478 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1479 {
1480 INT line_index = EDIT_EM_LineIndex(es, line);
1481
1482 if (es->style & ES_MULTILINE)
1483 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1484 else
1485 rc->top = es->format_rect.top;
1486 rc->bottom = rc->top + es->line_height;
1487 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1488 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1489 }
1490
1491
1492 /*********************************************************************
1493 *
1494 * EDIT_GetPasswordPointer_SL
1495 *
1496 * note: caller should free the (optionally) allocated buffer
1497 *
1498 */
1499 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1500 {
1501 if (es->style & ES_PASSWORD) {
1502 INT len = strlenW(es->text);
1503 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1504 text[len] = '\0';
1505 while(len) text[--len] = es->password_char;
1506 return text;
1507 } else
1508 return es->text;
1509 }
1510
1511
1512 /*********************************************************************
1513 *
1514 * EDIT_LockBuffer
1515 *
1516 * This acts as a LOCAL_Lock(), but it locks only once. This way
1517 * you can call it whenever you like, without unlocking.
1518 *
1519 * Initially the edit control allocates a HLOCAL32 buffer
1520 * (32 bit linear memory handler). However, 16 bit application
1521 * might send a EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1522 * handler). From that moment on we have to keep using this 16 bit memory
1523 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1524 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1525 * conversion.
1526 *
1527 */
1528 static void EDIT_LockBuffer(EDITSTATE *es)
1529 {
1530 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
1531 if (!es->text) {
1532 CHAR *textA = NULL;
1533 UINT countA = 0;
1534 BOOL _16bit = FALSE;
1535
1536 if(es->hloc32W)
1537 {
1538 if(es->hloc32A)
1539 {
1540 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1541 textA = LocalLock(es->hloc32A);
1542 countA = strlen(textA) + 1;
1543 }
1544 else if(es->hloc16)
1545 {
1546 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1547 textA = LOCAL_Lock(hInstance, es->hloc16);
1548 countA = strlen(textA) + 1;
1549 _16bit = TRUE;
1550 }
1551 }
1552 else {
1553 ERR("no buffer ... please report\n");
1554 return;
1555 }
1556
1557 if(textA)
1558 {
1559 HLOCAL hloc32W_new;
1560 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1561 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1562 if(countW_new > es->buffer_size + 1)
1563 {
1564 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1565 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1566 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1567 if(hloc32W_new)
1568 {
1569 es->hloc32W = hloc32W_new;
1570 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1571 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1572 }
1573 else
1574 WARN("FAILED! Will synchronize partially\n");
1575 }
1576 }
1577
1578 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1579 es->text = LocalLock(es->hloc32W);
1580
1581 if(textA)
1582 {
1583 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1584 if(_16bit)
1585 LOCAL_Unlock(hInstance, es->hloc16);
1586 else
1587 LocalUnlock(es->hloc32A);
1588 }
1589 }
1590 es->lock_count++;
1591 }
1592
1593
1594 /*********************************************************************
1595 *
1596 * EDIT_SL_InvalidateText
1597 *
1598 * Called from EDIT_InvalidateText().
1599 * Does the job for single-line controls only.
1600 *
1601 */
1602 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1603 {
1604 RECT line_rect;
1605 RECT rc;
1606
1607 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1608 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1609 EDIT_UpdateText(es, &rc, TRUE);
1610 }
1611
1612
1613 /*********************************************************************
1614 *
1615 * EDIT_ML_InvalidateText
1616 *
1617 * Called from EDIT_InvalidateText().
1618 * Does the job for multi-line controls only.
1619 *
1620 */
1621 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1622 {
1623 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1624 INT sl = EDIT_EM_LineFromChar(es, start);
1625 INT el = EDIT_EM_LineFromChar(es, end);
1626 INT sc;
1627 INT ec;
1628 RECT rc1;
1629 RECT rcWnd;
1630 RECT rcLine;
1631 RECT rcUpdate;
1632 INT l;
1633
1634 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1635 return;
1636
1637 sc = start - EDIT_EM_LineIndex(es, sl);
1638 ec = end - EDIT_EM_LineIndex(es, el);
1639 if (sl < es->y_offset) {
1640 sl = es->y_offset;
1641 sc = 0;
1642 }
1643 if (el > es->y_offset + vlc) {
1644 el = es->y_offset + vlc;
1645 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1646 }
1647 GetClientRect(es->hwndSelf, &rc1);
1648 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1649 if (sl == el) {
1650 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1651 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1652 EDIT_UpdateText(es, &rcUpdate, TRUE);
1653 } else {
1654 EDIT_GetLineRect(es, sl, sc,
1655 EDIT_EM_LineLength(es,
1656 EDIT_EM_LineIndex(es, sl)),
1657 &rcLine);
1658 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1659 EDIT_UpdateText(es, &rcUpdate, TRUE);
1660 for (l = sl + 1 ; l < el ; l++) {
1661 EDIT_GetLineRect(es, l, 0,
1662 EDIT_EM_LineLength(es,
1663 EDIT_EM_LineIndex(es, l)),
1664 &rcLine);
1665 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1666 EDIT_UpdateText(es, &rcUpdate, TRUE);
1667 }
1668 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1669 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1670 EDIT_UpdateText(es, &rcUpdate, TRUE);
1671 }
1672 }
1673
1674
1675 /*********************************************************************
1676 *
1677 * EDIT_InvalidateText
1678 *
1679 * Invalidate the text from offset start upto, but not including,
1680 * offset end. Useful for (re)painting the selection.
1681 * Regions outside the linewidth are not invalidated.
1682 * end == -1 means end == TextLength.
1683 * start and end need not be ordered.
1684 *
1685 */
1686 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1687 {
1688 if (end == start)
1689 return;
1690
1691 if (end == -1)
1692 end = strlenW(es->text);
1693
1694 if (end < start) {
1695 INT tmp = start;
1696 start = end;
1697 end = tmp;
1698 }
1699
1700 if (es->style & ES_MULTILINE)
1701 EDIT_ML_InvalidateText(es, start, end);
1702 else
1703 EDIT_SL_InvalidateText(es, start, end);
1704 }
1705
1706
1707 /*********************************************************************
1708 *
1709 * EDIT_MakeFit
1710 *
1711 * Try to fit size + 1 characters in the buffer.
1712 * Constrain to limits if honor_limit is TRUE.
1713 */
1714 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size, BOOL honor_limit)
1715 {
1716 HLOCAL hNew32W;
1717
1718 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
1719 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
1720 return FALSE;
1721 }
1722
1723 if (size <= es->buffer_size)
1724 return TRUE;
1725
1726 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1727
1728 /* Force edit to unlock it's buffer. es->text now NULL */
1729 EDIT_UnlockBuffer(es, TRUE);
1730
1731 if (es->hloc32W) {
1732 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1733 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1734 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1735 es->hloc32W = hNew32W;
1736 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1737 }
1738 }
1739
1740 EDIT_LockBuffer(es);
1741
1742 if (es->buffer_size < size) {
1743 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1744 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1745 return FALSE;
1746 } else {
1747 TRACE("We now have %d+1\n", es->buffer_size);
1748 return TRUE;
1749 }
1750 }
1751
1752
1753 /*********************************************************************
1754 *
1755 * EDIT_MakeUndoFit
1756 *
1757 * Try to fit size + 1 bytes in the undo buffer.
1758 *
1759 */
1760 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1761 {
1762 UINT alloc_size;
1763
1764 if (size <= es->undo_buffer_size)
1765 return TRUE;
1766
1767 TRACE("trying to ReAlloc to %d+1\n", size);
1768
1769 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1770 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1771 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1772 return TRUE;
1773 }
1774 else
1775 {
1776 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1777 return FALSE;
1778 }
1779 }
1780
1781
1782 /*********************************************************************
1783 *
1784 * EDIT_MoveBackward
1785 *
1786 */
1787 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1788 {
1789 INT e = es->selection_end;
1790
1791 if (e) {
1792 e--;
1793 if ((es->style & ES_MULTILINE) && e &&
1794 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1795 e--;
1796 if (e && (es->text[e - 1] == '\r'))
1797 e--;
1798 }
1799 }
1800 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1801 EDIT_EM_ScrollCaret(es);
1802 }
1803
1804
1805 /*********************************************************************
1806 *
1807 * EDIT_MoveDown_ML
1808 *
1809 * Only for multi line controls
1810 * Move the caret one line down, on a column with the nearest
1811 * x coordinate on the screen (might be a different column).
1812 *
1813 */
1814 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1815 {
1816 INT s = es->selection_start;
1817 INT e = es->selection_end;
1818 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1819 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1820 INT x = (short)LOWORD(pos);
1821 INT y = (short)HIWORD(pos);
1822
1823 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1824 if (!extend)
1825 s = e;
1826 EDIT_EM_SetSel(es, s, e, after_wrap);
1827 EDIT_EM_ScrollCaret(es);
1828 }
1829
1830
1831 /*********************************************************************
1832 *
1833 * EDIT_MoveEnd
1834 *
1835 */
1836 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1837 {
1838 BOOL after_wrap = FALSE;
1839 INT e;
1840
1841 /* Pass a high value in x to make sure of receiving the end of the line */
1842 if (es->style & ES_MULTILINE)
1843 e = EDIT_CharFromPos(es, 0x3fffffff,
1844 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1845 else
1846 e = strlenW(es->text);
1847 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1848 EDIT_EM_ScrollCaret(es);
1849 }
1850
1851
1852 /*********************************************************************
1853 *
1854 * EDIT_MoveForward
1855 *
1856 */
1857 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1858 {
1859 INT e = es->selection_end;
1860
1861 if (es->text[e]) {
1862 e++;
1863 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1864 if (es->text[e] == '\n')
1865 e++;
1866 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1867 e += 2;
1868 }
1869 }
1870 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1871 EDIT_EM_ScrollCaret(es);
1872 }
1873
1874
1875 /*********************************************************************
1876 *
1877 * EDIT_MoveHome
1878 *
1879 * Home key: move to beginning of line.
1880 *
1881 */
1882 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1883 {
1884 INT e;
1885
1886 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1887 if (es->style & ES_MULTILINE)
1888 e = EDIT_CharFromPos(es, -es->x_offset,
1889 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1890 else
1891 e = 0;
1892 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1893 EDIT_EM_ScrollCaret(es);
1894 }
1895
1896
1897 /*********************************************************************
1898 *
1899 * EDIT_MovePageDown_ML
1900 *
1901 * Only for multi line controls
1902 * Move the caret one page down, on a column with the nearest
1903 * x coordinate on the screen (might be a different column).
1904 *
1905 */
1906 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1907 {
1908 INT s = es->selection_start;
1909 INT e = es->selection_end;
1910 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1911 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1912 INT x = (short)LOWORD(pos);
1913 INT y = (short)HIWORD(pos);
1914
1915 e = EDIT_CharFromPos(es, x,
1916 y + (es->format_rect.bottom - es->format_rect.top),
1917 &after_wrap);
1918 if (!extend)
1919 s = e;
1920 EDIT_EM_SetSel(es, s, e, after_wrap);
1921 EDIT_EM_ScrollCaret(es);
1922 }
1923
1924
1925 /*********************************************************************
1926 *
1927 * EDIT_MovePageUp_ML
1928 *
1929 * Only for multi line controls
1930 * Move the caret one page up, on a column with the nearest
1931 * x coordinate on the screen (might be a different column).
1932 *
1933 */
1934 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1935 {
1936 INT s = es->selection_start;
1937 INT e = es->selection_end;
1938 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1939 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1940 INT x = (short)LOWORD(pos);
1941 INT y = (short)HIWORD(pos);
1942
1943 e = EDIT_CharFromPos(es, x,
1944 y - (es->format_rect.bottom - es->format_rect.top),
1945 &after_wrap);
1946 if (!extend)
1947 s = e;
1948 EDIT_EM_SetSel(es, s, e, after_wrap);
1949 EDIT_EM_ScrollCaret(es);
1950 }
1951
1952
1953 /*********************************************************************
1954 *
1955 * EDIT_MoveUp_ML
1956 *
1957 * Only for multi line controls
1958 * Move the caret one line up, on a column with the nearest
1959 * x coordinate on the screen (might be a different column).
1960 *
1961 */
1962 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1963 {
1964 INT s = es->selection_start;
1965 INT e = es->selection_end;
1966 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1967 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1968 INT x = (short)LOWORD(pos);
1969 INT y = (short)HIWORD(pos);
1970
1971 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1972 if (!extend)
1973 s = e;
1974 EDIT_EM_SetSel(es, s, e, after_wrap);
1975 EDIT_EM_ScrollCaret(es);
1976 }
1977
1978
1979 /*********************************************************************
1980 *
1981 * EDIT_MoveWordBackward
1982 *
1983 */
1984 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1985 {
1986 INT s = es->selection_start;
1987 INT e = es->selection_end;
1988 INT l;
1989 INT ll;
1990 INT li;
1991
1992 l = EDIT_EM_LineFromChar(es, e);
1993 ll = EDIT_EM_LineLength(es, e);
1994 li = EDIT_EM_LineIndex(es, l);
1995 if (e - li == 0) {
1996 if (l) {
1997 li = EDIT_EM_LineIndex(es, l - 1);
1998 e = li + EDIT_EM_LineLength(es, li);
1999 }
2000 } else {
2001 e = li + (INT)EDIT_CallWordBreakProc(es,
2002 li, e - li, ll, WB_LEFT);
2003 }
2004 if (!extend)
2005 s = e;
2006 EDIT_EM_SetSel(es, s, e, FALSE);
2007 EDIT_EM_ScrollCaret(es);
2008 }
2009
2010
2011 /*********************************************************************
2012 *
2013 * EDIT_MoveWordForward
2014 *
2015 */
2016 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2017 {
2018 INT s = es->selection_start;
2019 INT e = es->selection_end;
2020 INT l;
2021 INT ll;
2022 INT li;
2023
2024 l = EDIT_EM_LineFromChar(es, e);
2025 ll = EDIT_EM_LineLength(es, e);
2026 li = EDIT_EM_LineIndex(es, l);
2027 if (e - li == ll) {
2028 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2029 e = EDIT_EM_LineIndex(es, l + 1);
2030 } else {
2031 e = li + EDIT_CallWordBreakProc(es,
2032 li, e - li + 1, ll, WB_RIGHT);
2033 }
2034 if (!extend)
2035 s = e;
2036 EDIT_EM_SetSel(es, s, e, FALSE);
2037 EDIT_EM_ScrollCaret(es);
2038 }
2039
2040
2041 /*********************************************************************
2042 *
2043 * EDIT_PaintLine
2044 *
2045 */
2046 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2047 {
2048 INT s = es->selection_start;
2049 INT e = es->selection_end;
2050 INT li;
2051 INT ll;
2052 INT x;
2053 INT y;
2054 LRESULT pos;
2055
2056 if (es->style & ES_MULTILINE) {
2057 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2058 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2059 return;
2060 } else if (line)
2061 return;
2062
2063 TRACE("line=%d\n", line);
2064
2065 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2066 x = (short)LOWORD(pos);
2067 y = (short)HIWORD(pos);
2068 li = EDIT_EM_LineIndex(es, line);
2069 ll = EDIT_EM_LineLength(es, li);
2070 s = min(es->selection_start, es->selection_end);
2071 e = max(es->selection_start, es->selection_end);
2072 s = min(li + ll, max(li, s));
2073 e = min(li + ll, max(li, e));
2074 if (rev && (s != e) &&
2075 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2076 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2077 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2078 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2079 } else
2080 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2081 }
2082
2083
2084 /*********************************************************************
2085 *
2086 * EDIT_PaintText
2087 *
2088 */
2089 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2090 {
2091 COLORREF BkColor;
2092 COLORREF TextColor;
2093 INT ret;
2094 INT li;
2095 INT BkMode;
2096 SIZE size;
2097
2098 if (!count)
2099 return 0;
2100 BkMode = GetBkMode(dc);
2101 BkColor = GetBkColor(dc);
2102 TextColor = GetTextColor(dc);
2103 if (rev) {
2104 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2105 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2106 SetBkMode( dc, OPAQUE);
2107 }
2108 li = EDIT_EM_LineIndex(es, line);
2109 if (es->style & ES_MULTILINE) {
2110 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2111 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2112 } else {
2113 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2114 TextOutW(dc, x, y, text + li + col, count);
2115 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2116 ret = size.cx;
2117 if (es->style & ES_PASSWORD)
2118 HeapFree(GetProcessHeap(), 0, text);
2119 }
2120 if (rev) {
2121 SetBkColor(dc, BkColor);
2122 SetTextColor(dc, TextColor);
2123 SetBkMode( dc, BkMode);
2124 }
2125 return ret;
2126 }
2127
2128
2129 /*********************************************************************
2130 *
2131 * EDIT_SetCaretPos
2132 *
2133 */
2134 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2135 BOOL after_wrap)
2136 {
2137 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2138 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2139 }
2140
2141
2142 /*********************************************************************
2143 *
2144 * EDIT_SetRectNP
2145 *
2146 * note: this is not (exactly) the handler called on EM_SETRECTNP
2147 * it is also used to set the rect of a single line control
2148 *
2149 */
2150 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2151 {
2152 CopyRect(&es->format_rect, rc);
2153 if (es->style & WS_BORDER) {
2154 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2155 if(TWEAK_WineLook == WIN31_LOOK)
2156 bw += 2;
2157 es->format_rect.left += bw;
2158 es->format_rect.top += bw;
2159 es->format_rect.right -= bw;
2160 es->format_rect.bottom -= bw;
2161 }
2162 es->format_rect.left += es->left_margin;
2163 es->format_rect.right -= es->right_margin;
2164 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2165 if (es->style & ES_MULTILINE)
2166 {
2167 INT fw, vlc, max_x_offset, max_y_offset;
2168
2169 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2170 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2171
2172 /* correct es->x_offset */
2173 fw = es->format_rect.right - es->format_rect.left;
2174 max_x_offset = es->text_width - fw;
2175 if(max_x_offset < 0) max_x_offset = 0;
2176 if(es->x_offset > max_x_offset)
2177 es->x_offset = max_x_offset;
2178
2179 /* correct es->y_offset */
2180 max_y_offset = es->line_count - vlc;
2181 if(max_y_offset < 0) max_y_offset = 0;
2182 if(es->y_offset > max_y_offset)
2183 es->y_offset = max_y_offset;
2184
2185 /* force scroll info update */
2186 EDIT_UpdateScrollInfo(es);
2187 }
2188 else
2189 /* Windows doesn't care to fix text placement for SL controls */
2190 es->format_rect.bottom = es->format_rect.top + es->line_height;
2191
2192 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2193 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2194 }
2195
2196
2197 /*********************************************************************
2198 *
2199 * EDIT_UnlockBuffer
2200 *
2201 */
2202 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2203 {
2204 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2205
2206 /* Edit window might be already destroyed */
2207 if(!IsWindow(es->hwndSelf))
2208 {
2209 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2210 return;
2211 }
2212
2213 if (!es->lock_count) {
2214 ERR("lock_count == 0 ... please report\n");
2215 return;
2216 }
2217 if (!es->text) {
2218 ERR("es->text == 0 ... please report\n");
2219 return;
2220 }
2221
2222 if (force || (es->lock_count == 1)) {
2223 if (es->hloc32W) {
2224 CHAR *textA = NULL;
2225 BOOL _16bit = FALSE;
2226 UINT countA = 0;
2227 UINT countW = strlenW(es->text) + 1;
2228
2229 if(es->hloc32A)
2230 {
2231 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2232 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2233 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2234 countA = LocalSize(es->hloc32A);
2235 if(countA_new > countA)
2236 {
2237 HLOCAL hloc32A_new;
2238 UINT alloc_size = ROUND_TO_GROW(countA_new);
2239 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2240 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2241 if(hloc32A_new)
2242 {
2243 es->hloc32A = hloc32A_new;
2244 countA = LocalSize(hloc32A_new);
2245 TRACE("Real new size %d bytes\n", countA);
2246 }
2247 else
2248 WARN("FAILED! Will synchronize partially\n");
2249 }
2250 textA = LocalLock(es->hloc32A);
2251 }
2252 else if(es->hloc16)
2253 {
2254 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2255 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2256 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2257 countA = LOCAL_Size(hInstance, es->hloc16);
2258 if(countA_new > countA)
2259 {
2260 HLOCAL16 hloc16_new;
2261 UINT alloc_size = ROUND_TO_GROW(countA_new);
2262 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2263 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2264 if(hloc16_new)
2265 {
2266 es->hloc16 = hloc16_new;
2267 countA = LOCAL_Size(hInstance, hloc16_new);
2268 TRACE("Real new size %d bytes\n", countA);
2269 }
2270 else
2271 WARN("FAILED! Will synchronize partially\n");
2272 }
2273 textA = LOCAL_Lock(hInstance, es->hloc16);
2274 _16bit = TRUE;
2275 }
2276
2277 if(textA)
2278 {
2279 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2280 if(_16bit)
2281 LOCAL_Unlock(hInstance, es->hloc16);
2282 else
2283 LocalUnlock(es->hloc32A);
2284 }
2285
2286 LocalUnlock(es->hloc32W);
2287 es->text = NULL;
2288 }
2289 else {
2290 ERR("no buffer ... please report\n");
2291 return;
2292 }
2293 }
2294 es->lock_count--;
2295 }
2296
2297
2298 /*********************************************************************
2299 *
2300 * EDIT_UpdateScrollInfo
2301 *
2302 */
2303 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2304 {
2305 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2306 {
2307 SCROLLINFO si;
2308 si.cbSize = sizeof(SCROLLINFO);
2309 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2310 si.nMin = 0;
2311 si.nMax = es->line_count - 1;
2312 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2313 si.nPos = es->y_offset;
2314 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2315 si.nMin, si.nMax, si.nPage, si.nPos);
2316 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2317 }
2318
2319 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2320 {
2321 SCROLLINFO si;
2322 si.cbSize = sizeof(SCROLLINFO);
2323 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2324 si.nMin = 0;
2325 si.nMax = es->text_width - 1;
2326 si.nPage = es->format_rect.right - es->format_rect.left;
2327 si.nPos = es->x_offset;
2328 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2329 si.nMin, si.nMax, si.nPage, si.nPos);
2330 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2331 }
2332 }
2333
2334 /*********************************************************************
2335 *
2336 * EDIT_WordBreakProc
2337 *
2338 * Find the beginning of words.
2339 * Note: unlike the specs for a WordBreakProc, this function only
2340 * allows to be called without linebreaks between s[0] upto
2341 * s[count - 1]. Remember it is only called
2342 * internally, so we can decide this for ourselves.
2343 *
2344 */
2345 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2346 {
2347 INT ret = 0;
2348
2349 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2350
2351 if(!s) return 0;
2352
2353 switch (action) {
2354 case WB_LEFT:
2355 if (!count)
2356 break;
2357 if (index)
2358 index--;
2359 if (s[index] == ' ') {
2360 while (index && (s[index] == ' '))
2361 index--;
2362 if (index) {
2363 while (index && (s[index] != ' '))
2364 index--;
2365 if (s[index] == ' ')
2366 index++;
2367 }
2368 } else {
2369 while (index && (s[index] != ' '))
2370 index--;
2371 if (s[index] == ' ')
2372 index++;
2373 }
2374 ret = index;
2375 break;
2376 case WB_RIGHT:
2377 if (!count)
2378 break;
2379 if (index)
2380 index--;
2381 if (s[index] == ' ')
2382 while ((index < count) && (s[index] == ' ')) index++;
2383 else {
2384 while (s[index] && (s[index] != ' ') && (index < count))
2385 index++;
2386 while ((s[index] == ' ') && (index < count)) index++;
2387 }
2388 ret = index;
2389 break;
2390 case WB_ISDELIMITER:
2391 ret = (s[index] == ' ');
2392 break;
2393 default:
2394 ERR("unknown action code, please report !\n");
2395 break;
2396 }
2397 return ret;
2398 }
2399
2400
2401 /*********************************************************************
2402 *
2403 * EM_CHARFROMPOS
2404 *
2405 * returns line number (not index) in high-order word of result.
2406 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2407 * to Richedit, not to the edit control. Original documentation is valid.
2408 * FIXME: do the specs mean to return -1 if outside client area or
2409 * if outside formatting rectangle ???
2410 *
2411 */
2412 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2413 {
2414 POINT pt;
2415 RECT rc;
2416 INT index;
2417
2418 pt.x = x;
2419 pt.y = y;
2420 GetClientRect(es->hwndSelf, &rc);
2421 if (!PtInRect(&rc, pt))
2422 return -1;
2423
2424 index = EDIT_CharFromPos(es, x, y, NULL);
2425 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2426 }
2427
2428
2429 /*********************************************************************
2430 *
2431 * EM_FMTLINES
2432 *
2433 * Enable or disable soft breaks.
2434 *
2435 * This means: insert or remove the soft linebreak character (\r\r\n).
2436 * Take care to check if the text still fits the buffer after insertion.
2437 * If not, notify with EN_ERRSPACE.
2438 *
2439 */
2440 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2441 {
2442 es->flags &= ~EF_USE_SOFTBRK;
2443 if (add_eol) {
2444 es->flags |= EF_USE_SOFTBRK;
2445 FIXME("soft break enabled, not implemented\n");
2446 }
2447 return add_eol;
2448 }
2449
2450
2451 /*********************************************************************
2452 *
2453 * EM_GETHANDLE
2454 *
2455 * Hopefully this won't fire back at us.
2456 * We always start with a fixed buffer in the local heap.
2457 * Despite of the documentation says that the local heap is used
2458 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2459 * buffer on the local heap.
2460 *
2461 */
2462 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2463 {
2464 HLOCAL hLocal;
2465
2466 if (!(es->style & ES_MULTILINE))
2467 return 0;
2468
2469 if(es->is_unicode)
2470 hLocal = es->hloc32W;
2471 else
2472 {
2473 if(!es->hloc32A)
2474 {
2475 CHAR *textA;
2476 UINT countA, alloc_size;
2477 TRACE("Allocating 32-bit ANSI alias buffer\n");
2478 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2479 alloc_size = ROUND_TO_GROW(countA);
2480 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2481 {
2482 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2483 return 0;
2484 }
2485 textA = LocalLock(es->hloc32A);
2486 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2487 LocalUnlock(es->hloc32A);
2488 }
2489 hLocal = es->hloc32A;
2490 }
2491
2492 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2493 return hLocal;
2494 }
2495
2496
2497 /*********************************************************************
2498 *
2499 * EM_GETHANDLE16
2500 *
2501 * Hopefully this won't fire back at us.
2502 * We always start with a buffer in 32 bit linear memory.
2503 * However, with this message a 16 bit application requests
2504 * a handle of 16 bit local heap memory, where it expects to find
2505 * the text.
2506 * It's a pitty that from this moment on we have to use this
2507 * local heap, because applications may rely on the handle
2508 * in the future.
2509 *
2510 * In this function we'll try to switch to local heap.
2511 */
2512 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2513 {
2514 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2515 CHAR *textA;
2516 UINT countA, alloc_size;
2517
2518 if (!(es->style & ES_MULTILINE))
2519 return 0;
2520
2521 if (es->hloc16)
2522 return es->hloc16;
2523
2524 if (!LOCAL_HeapSize(hInstance)) {
2525 if (!LocalInit16(hInstance, 0,
2526 GlobalSize16(hInstance))) {
2527 ERR("could not initialize local heap\n");
2528 return 0;
2529 }
2530 TRACE("local heap initialized\n");
2531 }
2532
2533 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2534 alloc_size = ROUND_TO_GROW(countA);
2535
2536 TRACE("Allocating 16-bit ANSI alias buffer\n");
2537 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2538 ERR("could not allocate new 16 bit buffer\n");
2539 return 0;
2540 }
2541
2542 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2543 ERR("could not lock new 16 bit buffer\n");
2544 LOCAL_Free(hInstance, es->hloc16);
2545 es->hloc16 = 0;
2546 return 0;
2547 }
2548
2549 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2550 LOCAL_Unlock(hInstance, es->hloc16);
2551
2552 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2553 return es->hloc16;
2554 }
2555
2556
2557 /*********************************************************************
2558 *
2559 * EM_GETLINE
2560 *
2561 */
2562 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2563 {
2564 LPWSTR src;
2565 INT line_len, dst_len;
2566 INT i;
2567
2568 if (es->style & ES_MULTILINE) {
2569 if (line >= es->line_count)
2570 return 0;
2571 } else
2572 line = 0;
2573 i = EDIT_EM_LineIndex(es, line);
2574 src = es->text + i;
2575 line_len = EDIT_EM_LineLength(es, i);
2576 dst_len = *(WORD *)lParam;
2577 if(unicode)
2578 {
2579 LPWSTR dst = (LPWSTR)lParam;
2580 if(dst_len <= line_len)
2581 {
2582 memcpy(dst, src, dst_len * sizeof(WCHAR));
2583 return dst_len;
2584 }
2585 else /* Append 0 if enough space */
2586 {
2587 memcpy(dst, src, line_len * sizeof(WCHAR));
2588 dst[line_len] = 0;
2589 return line_len;
2590 }
2591 }
2592 else
2593 {
2594 LPSTR dst = (LPSTR)lParam;
2595 INT ret;
2596 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2597 if(!ret) /* Insufficient buffer size */
2598 return dst_len;
2599 if(ret < dst_len) /* Append 0 if enough space */
2600 dst[ret] = 0;
2601 return ret;
2602 }
2603 }
2604
2605
2606 /*********************************************************************
2607 *
2608 * EM_GETSEL
2609 *
2610 */
2611 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2612 {
2613 UINT s = es->selection_start;
2614 UINT e = es->selection_end;
2615
2616 ORDER_UINT(s, e);
2617 if (start)
2618 *start = s;
2619 if (end)
2620 *end = e;
2621 return MAKELONG(s, e);
2622 }
2623
2624
2625 /*********************************************************************
2626 *
2627 * EM_GETTHUMB
2628 *
2629 * FIXME: is this right ? (or should it be only VSCROLL)
2630 * (and maybe only for edit controls that really have their
2631 * own scrollbars) (and maybe only for multiline controls ?)
2632 * All in all: very poorly documented
2633 *
2634 */
2635 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2636 {
2637 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2638 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2639 }
2640
2641
2642 /*********************************************************************
2643 *
2644 * EM_LINEFROMCHAR
2645 *
2646 */
2647 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2648 {
2649 INT line;
2650 LINEDEF *line_def;
2651
2652 if (!(es->style & ES_MULTILINE))
2653 return 0;
2654 if (index > (INT)strlenW(es->text))
2655 return es->line_count - 1;
2656 if (index == -1)
2657 index = min(es->selection_start, es->selection_end);
2658
2659 line = 0;
2660 line_def = es->first_line_def;
2661 index -= line_def->length;
2662 while ((index >= 0) && line_def->next) {
2663 line++;
2664 line_def = line_def->next;
2665 index -= line_def->length;
2666 }
2667 return line;
2668 }
2669
2670
2671 /*********************************************************************
2672 *
2673 * EM_LINEINDEX
2674 *
2675 */
2676 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2677 {
2678 INT line_index;
2679 LINEDEF *line_def;
2680
2681 if (!(es->style & ES_MULTILINE))
2682 return 0;
2683 if (line >= es->line_count)
2684 return -1;
2685
2686 line_index = 0;
2687 line_def = es->first_line_def;
2688 if (line == -1) {
2689 INT index = es->selection_end - line_def->length;
2690 while ((index >= 0) && line_def->next) {
2691 line_index += line_def->length;
2692 line_def = line_def->next;
2693 index -= line_def->length;
2694 }
2695 } else {
2696 while (line > 0) {
2697 line_index += line_def->length;
2698 line_def = line_def->next;
2699 line--;
2700 }
2701 }
2702 return line_index;
2703 }
2704
2705
2706 /*********************************************************************
2707 *
2708 * EM_LINELENGTH
2709 *
2710 */
2711 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2712 {
2713 LINEDEF *line_def;
2714
2715 if (!(es->style & ES_MULTILINE))
2716 return strlenW(es->text);
2717
2718 if (index == -1) {
2719 /* get the number of remaining non-selected chars of selected lines */
2720 INT32 l; /* line number */
2721 INT32 li; /* index of first char in line */
2722 INT32 count;
2723 l = EDIT_EM_LineFromChar(es, es->selection_start);
2724 /* # chars before start of selection area */
2725 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2726 l = EDIT_EM_LineFromChar(es, es->selection_end);
2727 /* # chars after end of selection */
2728 li = EDIT_EM_LineIndex(es, l);
2729 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2730 return count;
2731 }
2732 line_def = es->first_line_def;
2733 index -= line_def->length;
2734 while ((index >= 0) && line_def->next) {
2735 line_def = line_def->next;
2736 index -= line_def->length;
2737 }
2738 return line_def->net_length;
2739 }
2740
2741
2742 /*********************************************************************
2743 *
2744 * EM_LINESCROLL
2745 *
2746 * NOTE: dx is in average character widths, dy - in lines;
2747 *
2748 */
2749 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2750 {
2751 if (!(es->style & ES_MULTILINE))
2752 return FALSE;
2753
2754 dx *= es->char_width;
2755 return EDIT_EM_LineScroll_internal(es, dx, dy);
2756 }
2757
2758 /*********************************************************************
2759 *
2760 * EDIT_EM_LineScroll_internal
2761 *
2762 * Version of EDIT_EM_LineScroll for internal use.
2763 * It doesn't refuse if ES_MULTILINE is set and assumes that
2764 * dx is in pixels, dy - in lines.
2765 *
2766 */
2767 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2768 {
2769 INT nyoff;
2770 INT x_offset_in_pixels;
2771
2772 if (es->style & ES_MULTILINE)
2773 {
2774 x_offset_in_pixels = es->x_offset;
2775 }
2776 else
2777 {
2778 dy = 0;
2779 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2780 }
2781
2782 if (-dx > x_offset_in_pixels)
2783 dx = -x_offset_in_pixels;
2784 if (dx > es->text_width - x_offset_in_pixels)
2785 dx = es->text_width - x_offset_in_pixels;
2786 nyoff = max(0, es->y_offset + dy);
2787 if (nyoff >= es->line_count)
2788 nyoff = es->line_count - 1;
2789 dy = (es->y_offset - nyoff) * es->line_height;
2790 if (dx || dy) {
2791 RECT rc1;
2792 RECT rc;
2793
2794 es->y_offset = nyoff;
2795 if(es->style & ES_MULTILINE)
2796 es->x_offset += dx;
2797 else
2798 es->x_offset += dx / es->char_width;
2799
2800 GetClientRect(es->hwndSelf, &rc1);
2801 IntersectRect(&rc, &rc1, &es->format_rect);
2802 ScrollWindowEx(es->hwndSelf, -dx, dy,
2803 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2804 /* force scroll info update */
2805 EDIT_UpdateScrollInfo(es);
2806 }
2807 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2808 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2809 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2810 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2811 return TRUE;
2812 }
2813
2814
2815 /*********************************************************************
2816 *
2817 * EM_POSFROMCHAR
2818 *
2819 */
2820 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2821 {
2822 INT len = strlenW(es->text);
2823 INT l;
2824 INT li;
2825 INT x;
2826 INT y = 0;
2827 HDC dc;
2828 HFONT old_font = 0;
2829 SIZE size;
2830
2831 index = min(index, len);
2832 dc = GetDC(es->hwndSelf);
2833 if (es->font)
2834 old_font = SelectObject(dc, es->font);
2835 if (es->style & ES_MULTILINE) {
2836 l = EDIT_EM_LineFromChar(es, index);
2837 y = (l - es->y_offset) * es->line_height;
2838 li = EDIT_EM_LineIndex(es, l);
2839 if (after_wrap && (li == index) && l) {
2840 INT l2 = l - 1;
2841 LINEDEF *line_def = es->first_line_def;
2842 while (l2) {
2843 line_def = line_def->next;
2844 l2--;
2845 }
2846 if (line_def->ending == END_WRAP) {
2847 l--;
2848 y -= es->line_height;
2849 li = EDIT_EM_LineIndex(es, l);
2850 }
2851 }
2852 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2853 es->tabs_count, es->tabs)) - es->x_offset;
2854 } else {
2855 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2856 if (index < es->x_offset) {
2857 GetTextExtentPoint32W(dc, text + index,
2858 es->x_offset - index, &size);
2859 x = -size.cx;
2860 } else {
2861 GetTextExtentPoint32W(dc, text + es->x_offset,
2862 index - es->x_offset, &size);
2863 x = size.cx;
2864 }
2865 y = 0;
2866 if (es->style & ES_PASSWORD)
2867 HeapFree(GetProcessHeap(), 0, text);
2868 }
2869 x += es->format_rect.left;
2870 y += es->format_rect.top;
2871 if (es->font)
2872 SelectObject(dc, old_font);
2873 ReleaseDC(es->hwndSelf, dc);
2874 return MAKELONG((INT16)x, (INT16)y);
2875 }
2876
2877
2878 /*********************************************************************
2879 *
2880 * EM_REPLACESEL
2881 *
2882 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2883 *
2884 */
2885 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2886 {
2887 UINT strl = strlenW(lpsz_replace);
2888 UINT tl = strlenW(es->text);
2889 UINT utl;
2890 UINT s;
2891 UINT e;
2892 UINT i;
2893 LPWSTR p;
2894 HRGN hrgn = 0;
2895
2896 TRACE("%s, can_undo %d, send_update %d\n",
2897 debugstr_w(lpsz_replace), can_undo, send_update);
2898
2899 s = es->selection_start;
2900 e = es->selection_end;
2901
2902 if ((s == e) && !strl)
2903 return;
2904
2905 ORDER_UINT(s, e);
2906
2907 if (!EDIT_MakeFit(es, tl - (e - s) + strl, honor_limit))
2908 return;
2909
2910 if (e != s) {
2911 /* there is something to be deleted */
2912 TRACE("deleting stuff.\n");
2913 if (can_undo) {
2914 utl = strlenW(es->undo_text);
2915 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2916 /* undo-buffer is extended to the right */
2917 EDIT_MakeUndoFit(es, utl + e - s);
2918 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
2919 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2920 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2921 /* undo-buffer is extended to the left */
2922 EDIT_MakeUndoFit(es, utl + e - s);
2923 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2924 p[e - s] = p[0];
2925 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2926 p[i] = (es->text + s)[i];
2927 es->undo_position = s;
2928 } else {
2929 /* new undo-buffer */
2930 EDIT_MakeUndoFit(es, e - s);
2931 strncpyW(es->undo_text, es->text + s, e - s + 1);
2932 es->undo_text[e - s] = 0; /* ensure 0 termination */
2933 es->undo_position = s;
2934 }
2935 /* any deletion makes the old insertion-undo invalid */
2936 es->undo_insert_count = 0;
2937 } else
2938 EDIT_EM_EmptyUndoBuffer(es);
2939
2940 /* now delete */
2941 strcpyW(es->text + s, es->text + e);
2942 }
2943 if (strl) {
2944 /* there is an insertion */
2945 if (can_undo) {
2946 if ((s == es->undo_position) ||
2947 ((es->undo_insert_count) &&
2948 (s == es->undo_position + es->undo_insert_count)))
2949 /*
2950 * insertion is new and at delete position or
2951 * an extension to either left or right
2952 */
2953 es->undo_insert_count += strl;
2954 else {
2955 /* new insertion undo */
2956 es->undo_position = s;
2957 es->undo_insert_count = strl;
2958 /* new insertion makes old delete-buffer invalid */
2959 *es->undo_text = '\0';
2960 }
2961 } else
2962 EDIT_EM_EmptyUndoBuffer(es);
2963
2964 /* now insert */
2965 tl = strlenW(es->text);
2966 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));
2967 for (p = es->text + tl ; p >= es->text + s ; p--)
2968 p[strl] = p[0];
2969 for (i = 0 , p = es->text + s ; i < strl ; i++)
2970 p[i] = lpsz_replace[i];
2971 if(es->style & ES_UPPERCASE)
2972 CharUpperBuffW(p, strl);
2973 else if(es->style & ES_LOWERCASE)
2974 CharLowerBuffW(p, strl);
2975 s += strl;
2976 }
2977 if (es->style & ES_MULTILINE)
2978 {
2979 INT s = min(es->selection_start, es->selection_end);
2980
2981 hrgn = CreateRectRgn(0, 0, 0, 0);
2982 EDIT_BuildLineDefs_ML(es, s, s + strl,
2983 strl - abs(es->selection_end - es->selection_start), hrgn);
2984 }
2985 else
2986 EDIT_CalcLineWidth_SL(es);
2987
2988 EDIT_EM_SetSel(es, s, s, FALSE);
2989 es->flags |= EF_MODIFIED;
2990 if (send_update) es->flags |= EF_UPDATE;
2991 EDIT_EM_ScrollCaret(es);
2992
2993 /* force scroll info update */
2994 EDIT_UpdateScrollInfo(es);
2995
2996 if (hrgn)
2997 {
2998 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2999 DeleteObject(hrgn);
3000 }
3001 else
3002 EDIT_UpdateText(es, NULL, TRUE);
3003
3004 if(es->flags & EF_UPDATE)
3005 {
3006 es->flags &= ~EF_UPDATE;
3007 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3008 }
3009 }
3010
3011
3012 /*********************************************************************
3013 *
3014 * EM_SCROLL
3015 *
3016 */
3017 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3018 {
3019 INT dy;
3020
3021 if (!(es->style & ES_MULTILINE))
3022 return (LRESULT)FALSE;
3023
3024 dy = 0;
3025
3026 switch (action) {
3027 case SB_LINEUP:
3028 if (es->y_offset)
3029 dy = -1;
3030 break;
3031 case SB_LINEDOWN:
3032 if (es->y_offset < es->line_count - 1)
3033 dy = 1;
3034 break;
3035 case SB_PAGEUP:
3036 if (es->y_offset)
3037 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3038 break;
3039 case SB_PAGEDOWN:
3040 if (es->y_offset < es->line_count - 1)
3041 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3042 break;
3043 default:
3044 return (LRESULT)FALSE;
3045 }
3046 if (dy) {
3047 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3048 /* check if we are going to move too far */
3049 if(es->y_offset + dy > es->line_count - vlc)
3050 dy = es->line_count - vlc - es->y_offset;
3051
3052 /* Notification is done in EDIT_EM_LineScroll */
3053 if(dy)
3054 EDIT_EM_LineScroll(es, 0, dy);
3055 }
3056 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3057 }
3058
3059
3060 /*********************************************************************
3061 *
3062 * EM_SCROLLCARET
3063 *
3064 */
3065 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3066 {
3067 if (es->style & ES_MULTILINE) {
3068 INT l;
3069 INT li;
3070 INT vlc;
3071 INT ww;
3072 INT cw = es->char_width;
3073 INT x;
3074 INT dy = 0;
3075 INT dx = 0;
3076
3077 l = EDIT_EM_LineFromChar(es, es->selection_end);
3078 li = EDIT_EM_LineIndex(es, l);
3079 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3080 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3081 if (l >= es->y_offset + vlc)
3082 dy = l - vlc + 1 - es->y_offset;
3083 if (l < es->y_offset)
3084 dy = l - es->y_offset;
3085 ww = es->format_rect.right - es->format_rect.left;
3086 if (x < es->format_rect.left)
3087 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3088 if (x > es->format_rect.right)
3089 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3090 if (dy || dx)
3091 {
3092 /* check if we are going to move too far */
3093 if(es->x_offset + dx + ww > es->text_width)
3094 dx = es->text_width - ww - es->x_offset;
3095 if(dx || dy)
3096 EDIT_EM_LineScroll_internal(es, dx, dy);
3097 }
3098 } else {
3099 INT x;
3100 INT goal;
3101 INT format_width;
3102
3103 if (!(es->style & ES_AUTOHSCROLL))
3104 return;
3105
3106 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3107 format_width = es->format_rect.right - es->format_rect.left;
3108 if (x < es->format_rect.left) {
3109 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3110 do {
3111 es->x_offset--;
3112 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3113 } while ((x < goal) && es->x_offset);
3114 /* FIXME: use ScrollWindow() somehow to improve performance */
3115 EDIT_UpdateText(es, NULL, TRUE);
3116 } else if (x > es->format_rect.right) {
3117 INT x_last;
3118 INT len = strlenW(es->text);
3119 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3120 do {
3121 es->x_offset++;
3122 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3123 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3124 } while ((x > goal) && (x_last > es->format_rect.right));
3125 /* FIXME: use ScrollWindow() somehow to improve performance */
3126 EDIT_UpdateText(es, NULL, TRUE);
3127 }
3128 }
3129
3130 if(es->flags & EF_FOCUSED)
3131 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3132 }
3133
3134
3135 /*********************************************************************
3136 *
3137 * EM_SETHANDLE
3138 *
3139 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3140 *
3141 */
3142 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3143 {
3144 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3145
3146 if (!(es->style & ES_MULTILINE))
3147 return;
3148
3149 if (!hloc) {
3150 WARN("called with NULL handle\n");
3151 return;
3152 }
3153
3154 EDIT_UnlockBuffer(es, TRUE);
3155
3156 if(es->hloc16)
3157 {
3158 LOCAL_Free(hInstance, es->hloc16);
3159 es->hloc16 = (HLOCAL16)NULL;
3160 }
3161
3162 if(es->is_unicode)
3163 {
3164 if(es->hloc32A)
3165 {
3166 LocalFree(es->hloc32A);
3167 es->hloc32A = NULL;
3168 }
3169 es->hloc32W = hloc;
3170 }
3171 else
3172 {
3173 INT countW, countA;
3174 HLOCAL hloc32W_new;
3175 WCHAR *textW;
3176 CHAR *textA;
3177
3178 countA = LocalSize(hloc);
3179 textA = LocalLock(hloc);
3180 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3181 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3182 {
3183 ERR("Could not allocate new unicode buffer\n");
3184 return;
3185 }
3186 textW = LocalLock(hloc32W_new);
3187 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3188 LocalUnlock(hloc32W_new);
3189 LocalUnlock(hloc);
3190
3191 if(es->hloc32W)
3192 LocalFree(es->hloc32W);
3193
3194 es->hloc32W = hloc32W_new;
3195 es->hloc32A = hloc;
3196 }
3197
3198 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3199
3200 EDIT_LockBuffer(es);
3201
3202 es->x_offset = es->y_offset = 0;
3203 es->selection_start = es->selection_end = 0;
3204 EDIT_EM_EmptyUndoBuffer(es);
3205 es->flags &= ~EF_MODIFIED;
3206 es->flags &= ~EF_UPDATE;
3207 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3208 EDIT_UpdateText(es, NULL, TRUE);
3209 EDIT_EM_ScrollCaret(es);
3210 /* force scroll info update */
3211 EDIT_UpdateScrollInfo(es);
3212 }
3213
3214
3215 /*********************************************************************
3216 *
3217 * EM_SETHANDLE16
3218 *
3219 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3220 *
3221 */
3222 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3223 {
3224 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3225 INT countW, countA;
3226 HLOCAL hloc32W_new;
3227 WCHAR *textW;
3228 CHAR *textA;
3229
3230 if (!(es->style & ES_MULTILINE))
3231 return;
3232
3233 if (!hloc) {
3234 WARN("called with NULL handle\n");
3235 return;
3236 }
3237
3238 EDIT_UnlockBuffer(es, TRUE);
3239
3240 if(es->hloc32A)
3241 {
3242 LocalFree(es->hloc32A);
3243 es->hloc32A = NULL;
3244 }
3245
3246 countA = LOCAL_Size(hInstance, hloc);
3247 textA = LOCAL_Lock(hInstance, hloc);
3248 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3249 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3250 {
3251 ERR("Could not allocate new unicode buffer\n");
3252 return;
3253 }
3254 textW = LocalLock(hloc32W_new);
3255 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3256 LocalUnlock(hloc32W_new);
3257 LOCAL_Unlock(hInstance, hloc);
3258
3259 if(es->hloc32W)
3260 LocalFree(es->hloc32W);
3261
3262 es->hloc32W = hloc32W_new;
3263 es->hloc16 = hloc;
3264
3265 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3266
3267 EDIT_LockBuffer(es);
3268
3269 es->x_offset = es->y_offset = 0;
3270 es->selection_start = es->selection_end = 0;
3271 EDIT_EM_EmptyUndoBuffer(es);
3272 es->flags &= ~EF_MODIFIED;
3273 es->flags &= ~EF_UPDATE;
3274 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3275 EDIT_UpdateText(es, NULL, TRUE);
3276 EDIT_EM_ScrollCaret(es);
3277 /* force scroll info update */
3278 EDIT_UpdateScrollInfo(es);
3279 }
3280
3281
3282 /*********************************************************************
3283 *
3284 * EM_SETLIMITTEXT
3285 *
3286 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3287 * However, the windows version is not complied to yet in all of edit.c
3288 *
3289 * Additionally as the wrapper for RichEdit controls we need larger buffers
3290 * at present -1 will represent nolimit
3291 */
3292 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3293 {
3294 if (limit == 0xFFFFFFFF)
3295 es->buffer_limit = -1;
3296 else if (es->style & ES_MULTILINE) {
3297 if (limit)
3298 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3299 else
3300 es->buffer_limit = BUFLIMIT_MULTI;
3301 } else {
3302 if (limit)
3303 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3304 else
3305 es->buffer_limit = BUFLIMIT_SINGLE;
3306 }
3307 }
3308
3309
3310 /*********************************************************************
3311 *
3312 * EM_SETMARGINS
3313 *
3314 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3315 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3316 * margin according to the textmetrics of the current font.
3317 *
3318 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3319 * of the char's width as the margin, but this is not how Windows handles this.
3320 * For all other fonts Windows sets the margins to zero.
3321 *
3322 */
3323 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3324 INT left, INT right)
3325 {
3326 TEXTMETRICW tm;
3327 INT default_left_margin = 0; /* in pixels */
3328 INT default_right_margin = 0; /* in pixels */
3329
3330 /* Set the default margins depending on the font */
3331 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3332 HDC dc = GetDC(es->hwndSelf);
3333 HFONT old_font = SelectObject(dc, es->font);
3334 GetTextMetricsW(dc, &tm);
3335 /* The default margins are only non zero for TrueType or Vector fonts */
3336 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3337 /* This must be calculated more exactly! But how? */
3338 default_left_margin = tm.tmAveCharWidth / 3;
3339 default_right_margin = tm.tmAveCharWidth / 3;
3340 }
3341 SelectObject(dc, old_font);
3342 ReleaseDC(es->hwndSelf, dc);
3343 }
3344
3345 if (action & EC_LEFTMARGIN) {
3346 if (left != EC_USEFONTINFO)
3347 es->left_margin = left;
3348 else
3349 es->left_margin = default_left_margin;
3350 }
3351
3352 if (action & EC_RIGHTMARGIN) {
3353 if (right != EC_USEFONTINFO)
3354 es->right_margin = right;
3355 else
3356 es->right_margin = default_right_margin;
3357 }
3358 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3359 }
3360
3361
3362 /*********************************************************************
3363 *
3364 * EM_SETPASSWORDCHAR
3365 *
3366 */
3367 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3368 {
3369 LONG style;
3370
3371 if (es->style & ES_MULTILINE)
3372 return;
3373
3374 if (es->password_char == c)
3375 return;
3376
3377 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3378 es->password_char = c;
3379 if (c) {
3380 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3381 es->style |= ES_PASSWORD;
3382 } else {
3383 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3384 es->style &= ~ES_PASSWORD;
3385 }
3386 EDIT_UpdateText(es, NULL, TRUE);
3387 }
3388
3389
3390 /*********************************************************************
3391 *
3392 * EDIT_EM_SetSel
3393 *
3394 * note: unlike the specs say: the order of start and end
3395 * _is_ preserved in Windows. (i.e. start can be > end)
3396 * In other words: this handler is OK
3397 *
3398 */
3399 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3400 {
3401 UINT old_start = es->selection_start;
3402 UINT old_end = es->selection_end;
3403 UINT len = strlenW(es->text);
3404
3405 if (start == (UINT)-1) {
3406 start = es->selection_end;
3407 end = es->selection_end;
3408 } else {
3409 start = min(start, len);
3410 end = min(end, len);
3411 }
3412 es->selection_start = start;
3413 es->selection_end = end;
3414 if (after_wrap)
3415 es->flags |= EF_AFTER_WRAP;
3416 else
3417 es->flags &= ~EF_AFTER_WRAP;
3418 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3419 ORDER_UINT(start, end);
3420 ORDER_UINT(end, old_end);
3421 ORDER_UINT(start, old_start);
3422 ORDER_UINT(old_start, old_end);
3423 if (end != old_start)
3424 {
3425 /*
3426 * One can also do
3427 * ORDER_UINT32(end, old_start);
3428 * EDIT_InvalidateText(es, start, end);
3429 * EDIT_InvalidateText(es, old_start, old_end);
3430 * in place of the following if statement.
3431 */
3432 if (old_start > end )
3433 {
3434 EDIT_InvalidateText(es, start, end);
3435 EDIT_InvalidateText(es, old_start, old_end);
3436 }
3437 else
3438 {
3439 EDIT_InvalidateText(es, start, old_start);
3440 EDIT_InvalidateText(es, end, old_end);
3441 }
3442 }
3443 else EDIT_InvalidateText(es, start, old_end);
3444 }
3445
3446
3447 /*********************************************************************
3448 *
3449 * EM_SETTABSTOPS
3450 *
3451 */
3452 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3453 {
3454 if (!(es->style & ES_MULTILINE))
3455 return FALSE;
3456 if (es->tabs)
3457 HeapFree(GetProcessHeap(), 0, es->tabs);
3458 es->tabs_count = count;
3459 if (!count)
3460 es->tabs = NULL;
3461 else {
3462 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3463 memcpy(es->tabs, tabs, count * sizeof(INT));
3464 }
3465 return TRUE;
3466 }
3467
3468
3469 /*********************************************************************
3470 *
3471 * EM_SETTABSTOPS16
3472 *
3473 */
3474 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3475 {
3476 if (!(es->style & ES_MULTILINE))
3477 return FALSE;
3478 if (es->tabs)
3479 HeapFree(GetProcessHeap(), 0, es->tabs);
3480 es->tabs_count = count;
3481 if (!count)
3482 es->tabs = NULL;
3483 else {
3484 INT i;
3485 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3486 for (i = 0 ; i < count ; i++)
3487 es->tabs[i] = *tabs++;
3488 }
3489 return TRUE;
3490 }
3491
3492
3493 /*********************************************************************
3494 *
3495 * EM_SETWORDBREAKPROC
3496 *
3497 */
3498 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam)
3499 {
3500 if (es->word_break_proc == (void *)lParam)
3501 return;
3502
3503 es->word_break_proc = (void *)lParam;
3504 es->word_break_proc16 = NULL;
3505
3506 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3507 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3508 EDIT_UpdateText(es, NULL, TRUE);
3509 }
3510 }
3511
3512
3513 /*********************************************************************
3514 *
3515 * EM_SETWORDBREAKPROC16
3516 *
3517 */
3518 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3519 {
3520 if (es->word_break_proc16 == wbp)
3521 return;
3522
3523 es->word_break_proc = NULL;
3524 es->word_break_proc16 = wbp;
3525 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3526 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3527 EDIT_UpdateText(es, NULL, TRUE);
3528 }
3529 }
3530
3531
3532 /*********************************************************************
3533 *
3534 * EM_UNDO / WM_UNDO
3535 *
3536 */
3537 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3538 {
3539 INT ulength;
3540 LPWSTR utext;
3541
3542 /* Protect read-only edit control from modification */
3543 if(es->style & ES_READONLY)
3544 return FALSE;
3545
3546 ulength = strlenW(es->undo_text);
3547 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3548
3549 strcpyW(utext, es->undo_text);
3550
3551 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3552 es->undo_insert_count, debugstr_w(utext));
3553
3554 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3555 EDIT_EM_EmptyUndoBuffer(es);
3556 EDIT_EM_ReplaceSel(es, TRUE, utext, FALSE, TRUE);
3557 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3558 /* send the notification after the selection start and end are set */
3559 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3560 EDIT_EM_ScrollCaret(es);
3561 HeapFree(GetProcessHeap(), 0, utext);
3562
3563 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3564 es->undo_insert_count, debugstr_w(es->undo_text));
3565 return TRUE;
3566 }
3567
3568
3569 /*********************************************************************
3570 *
3571 * WM_CHAR
3572 *
3573 */
3574 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3575 {
3576 BOOL control;
3577
3578 /* Protect read-only edit control from modification */
3579 if(es->style & ES_READONLY)
3580 return;
3581
3582 control = GetKeyState(VK_CONTROL) & 0x8000;
3583
3584 switch (c) {
3585 case '\r':
3586 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3587 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3588 break;
3589 case '\n':
3590 if (es->style & ES_MULTILINE) {
3591 if (es->style & ES_READONLY) {
3592 EDIT_MoveHome(es, FALSE);
3593 EDIT_MoveDown_ML(es, FALSE);
3594 } else {
3595 static const WCHAR cr_lfW[] = {'\r','\n',0};
3596 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3597 }
3598 }
3599 break;
3600 case '\t':
3601 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3602 {
3603 static const WCHAR tabW[] = {'\t',0};
3604 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3605 }
3606 break;
3607 case VK_BACK:
3608 if (!(es->style & ES_READONLY) && !control) {
3609 if (es->selection_start != es->selection_end)
3610 EDIT_WM_Clear(es);
3611 else {
3612 /* delete character left of caret */
3613 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3614 EDIT_MoveBackward(es, TRUE);
3615 EDIT_WM_Clear(es);
3616 }
3617 }
3618 break;
3619 case 0x03: /* ^C */
3620 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3621 break;
3622 case 0x16: /* ^V */
3623 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3624 break;
3625 case 0x18: /* ^X */
3626 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3627 break;
3628
3629 default:
3630 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3631 WCHAR str[2];
3632 str[0] = c;
3633 str[1] = '\0';
3634 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3635 }
3636 break;
3637 }
3638 }
3639
3640
3641 /*********************************************************************
3642 *
3643 * WM_COMMAND
3644 *
3645 */
3646 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3647 {
3648 if (code || control)
3649 return;
3650
3651 switch (id) {
3652 case EM_UNDO:
3653 EDIT_EM_Undo(es);
3654 break;
3655 case WM_CUT:
3656 EDIT_WM_Cut(es);
3657 break;
3658 case WM_COPY:
3659 EDIT_WM_Copy(es);
3660 break;
3661 case WM_PASTE:
3662 EDIT_WM_Paste(es);
3663 break;
3664 case WM_CLEAR:
3665 EDIT_WM_Clear(es);
3666 break;
3667 case EM_SETSEL:
3668 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3669 EDIT_EM_ScrollCaret(es);
3670 break;
3671 default:
3672 ERR("unknown menu item, please report\n");
3673 break;
3674 }
3675 }
3676
3677
3678 /*********************************************************************
3679 *
3680 * WM_CONTEXTMENU
3681 *
3682 * Note: the resource files resource/sysres_??.rc cannot define a
3683 * single popup menu. Hence we use a (dummy) menubar
3684 * containing the single popup menu as its first item.
3685 *
3686 * FIXME: the message identifiers have been chosen arbitrarily,
3687 * hence we use MF_BYPOSITION.
3688 * We might as well use the "real" values (anybody knows ?)
3689 * The menu definition is in resources/sysres_??.rc.
3690 * Once these are OK, we better use MF_BYCOMMAND here
3691 * (as we do in EDIT_WM_Command()).
3692 *
3693 */
3694 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3695 {
3696 HMENU menu = LoadMenuA(GetModuleHandleA("USER32"), "EDITMENU");
3697 HMENU popup = GetSubMenu(menu, 0);
3698 UINT start = es->selection_start;
3699 UINT end = es->selection_end;
3700
3701 ORDER_UINT(start, end);
3702
3703 /* undo */
3704 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3705 /* cut */
3706 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3707 /* copy */
3708 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3709 /* paste */
3710 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3711 /* delete */
3712 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3713 /* select all */
3714 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3715
3716 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3717 DestroyMenu(menu);
3718 }
3719
3720
3721 /*********************************************************************
3722 *
3723 * WM_COPY
3724 *
3725 */
3726 static void EDIT_WM_Copy(EDITSTATE *es)
3727 {
3728 INT s = min(es->selection_start, es->selection_end);
3729 INT e = max(es->selection_start, es->selection_end);
3730 HGLOBAL hdst;
3731 LPWSTR dst;
3732
3733 if (e == s) return;
3734
3735 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3736 dst = GlobalLock(hdst);
3737 strncpyW(dst, es->text + s, e - s);
3738 dst[e - s] = 0; /* ensure 0 termination */
3739 TRACE("%s\n", debugstr_w(dst));
3740 GlobalUnlock(hdst);
3741 OpenClipboard(es->hwndSelf);
3742 EmptyClipboard();
3743 SetClipboardData(CF_UNICODETEXT, hdst);
3744 CloseClipboard();
3745 }
3746
3747
3748 /*********************************************************************
3749 *
3750 * WM_CREATE
3751 *
3752 */
3753 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3754 {
3755 TRACE("%s\n", debugstr_w(name));
3756 /*
3757 * To initialize some final structure members, we call some helper
3758 * functions. However, since the EDITSTATE is not consistent (i.e.
3759 * not fully initialized), we should be very careful which
3760 * functions can be called, and in what order.
3761 */
3762 EDIT_WM_SetFont(es, 0, FALSE);
3763 EDIT_EM_EmptyUndoBuffer(es);
3764
3765 if (name && *name) {
3766 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
3767 /* if we insert text to the editline, the text scrolls out
3768 * of the window, as the caret is placed after the insert
3769 * pos normally; thus we reset es->selection... to 0 and
3770 * update caret
3771 */
3772 es->selection_start = es->selection_end = 0;
3773 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
3774 * Messages are only to be sent when the USER does something to
3775 * change the contents. So I am removing this EN_CHANGE
3776 *
3777 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3778 */
3779 EDIT_EM_ScrollCaret(es);
3780 }
3781 /* force scroll info update */
3782 EDIT_UpdateScrollInfo(es);
3783 return 0;
3784 }
3785
3786
3787 /*********************************************************************
3788 *
3789 * WM_DESTROY
3790 *
3791 */
3792 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
3793 {
3794 LINEDEF *pc, *pp;
3795
3796 if (es->hloc32W) {
3797 while (LocalUnlock(es->hloc32W)) ;
3798 LocalFree(es->hloc32W);
3799 }
3800 if (es->hloc32A) {
3801 while (LocalUnlock(es->hloc32A)) ;
3802 LocalFree(es->hloc32A);
3803 }
3804 if (es->hloc16) {
3805 HINSTANCE16 hInstance = GetWindowWord( es->hwndSelf, GWL_HINSTANCE );
3806 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3807 LOCAL_Free(hInstance, es->hloc16);
3808 }
3809
3810 pc = es->first_line_def;
3811 while (pc)
3812 {
3813 pp = pc->next;
3814 HeapFree(GetProcessHeap(), 0, pc);
3815 pc = pp;
3816 }
3817
3818 SetWindowLongW( es->hwndSelf, 0, 0 );
3819 HeapFree(GetProcessHeap(), 0, es);
3820
3821 return 0;
3822 }
3823
3824
3825 /*********************************************************************
3826 *
3827 * WM_ERASEBKGND
3828 *
3829 */
3830 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
3831 {
3832 HBRUSH brush;
3833 RECT rc;
3834
3835 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
3836 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
3837
3838 GetClientRect(es->hwndSelf, &rc);
3839 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3840 GetClipBox(dc, &rc);
3841 /*
3842 * FIXME: specs say that we should UnrealizeObject() the brush,
3843 * but the specs of UnrealizeObject() say that we shouldn't
3844 * unrealize a stock object. The default brush that
3845 * DefWndProc() returns is ... a stock object.
3846 */
3847 FillRect(dc, &rc, brush);
3848 return -1;
3849 }
3850
3851
3852 /*********************************************************************
3853 *
3854 * WM_GETTEXT
3855 *
3856 */
3857 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3858 {
3859 if(!count) return 0;
3860
3861 if(unicode)
3862 {
3863 LPWSTR textW = (LPWSTR)lParam;
3864 lstrcpynW(textW, es->text, count);
3865 return strlenW(textW);
3866 }
3867 else
3868 {
3869 LPSTR textA = (LPSTR)lParam;
3870 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3871 textA[count - 1] = 0; /* ensure 0 termination */
3872 return strlen(textA);
3873 }
3874 }
3875
3876 /*********************************************************************
3877 *
3878 * WM_HSCROLL
3879 *
3880 */
3881 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3882 {
3883 INT dx;
3884 INT fw;
3885
3886 if (!(es->style & ES_MULTILINE))
3887 return 0;
3888
3889 if (!(es->style & ES_AUTOHSCROLL))
3890 return 0;
3891
3892 dx = 0;
3893 fw = es->format_rect.right - es->format_rect.left;
3894 switch (action) {
3895 case SB_LINELEFT:
3896 TRACE("SB_LINELEFT\n");
3897 if (es->x_offset)
3898 dx = -es->char_width;
3899 break;
3900 case SB_LINERIGHT:
3901 TRACE("SB_LINERIGHT\n");
3902 if (es->x_offset < es->text_width)
3903 dx = es->char_width;
3904 break;
3905 case SB_PAGELEFT:
3906 TRACE("SB_PAGELEFT\n");
3907 if (es->x_offset)
3908 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3909 break;
3910 case SB_PAGERIGHT:
3911 TRACE("SB_PAGERIGHT\n");
3912 if (es->x_offset < es->text_width)
3913 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3914 break;
3915 case SB_LEFT:
3916 TRACE("SB_LEFT\n");
3917 if (es->x_offset)
3918 dx = -es->x_offset;
3919 break;
3920 case SB_RIGHT:
3921 TRACE("SB_RIGHT\n");
3922 if (es->x_offset < es->text_width)
3923 dx = es->text_width - es->x_offset;
3924 break;
3925 case SB_THUMBTRACK:
3926 TRACE("SB_THUMBTRACK %d\n", pos);
3927 es->flags |= EF_HSCROLL_TRACK;
3928 if(es->style & WS_HSCROLL)
3929 dx = pos - es->x_offset;
3930 else
3931 {
3932 INT fw, new_x;
3933 /* Sanity check */
3934 if(pos < 0 || pos > 100) return 0;
3935 /* Assume default scroll range 0-100 */
3936 fw = es->format_rect.right - es->format_rect.left;
3937 new_x = pos * (es->text_width - fw) / 100;
3938 dx = es->text_width ? (new_x - es->x_offset) : 0;
3939 }
3940 break;
3941 case SB_THUMBPOSITION:
3942 TRACE("SB_THUMBPOSITION %d\n", pos);
3943 es->flags &= ~EF_HSCROLL_TRACK;
3944 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3945 dx = pos - es->x_offset;
3946 else
3947 {
3948 INT fw, new_x;
3949 /* Sanity check */
3950 if(pos < 0 || pos > 100) return 0;
3951 /* Assume default scroll range 0-100 */
3952 fw = es->format_rect.right - es->format_rect.left;
3953 new_x = pos * (es->text_width - fw) / 100;
3954 dx = es->text_width ? (new_x - es->x_offset) : 0;
3955 }
3956 if (!dx) {
3957 /* force scroll info update */
3958 EDIT_UpdateScrollInfo(es);
3959 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
3960 }
3961 break;
3962 case SB_ENDSCROLL:
3963 TRACE("SB_ENDSCROLL\n");
3964 break;
3965 /*
3966 * FIXME : the next two are undocumented !
3967 * Are we doing the right thing ?
3968 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3969 * although it's also a regular control message.
3970 */
3971 case EM_GETTHUMB: /* this one is used by NT notepad */
3972 case EM_GETTHUMB16:
3973 {
3974 LRESULT ret;
3975 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3976 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3977 else
3978 {
3979 /* Assume default scroll range 0-100 */
3980 INT fw = es->format_rect.right - es->format_rect.left;
3981 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
3982 }
3983 TRACE("EM_GETTHUMB: returning %ld\n", ret);
3984 return ret;
3985 }
3986 case EM_LINESCROLL16:
3987 TRACE("EM_LINESCROLL16\n");
3988 dx = pos;
3989 break;
3990
3991 default:
3992 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
3993 action, action);
3994 return 0;
3995 }
3996 if (dx)
3997 {
3998 INT fw = es->format_rect.right - es->format_rect.left;
3999 /* check if we are going to move too far */
4000 if(es->x_offset + dx + fw > es->text_width)
4001 dx = es->text_width - fw - es->x_offset;
4002 if(dx)
4003 EDIT_EM_LineScroll_internal(es, dx, 0);
4004 }
4005 return 0;
4006 }
4007
4008
4009 /*********************************************************************
4010 *
4011 * EDIT_CheckCombo
4012 *
4013 */
4014 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4015 {
4016 HWND hLBox = es->hwndListBox;
4017 HWND hCombo;
4018 BOOL bDropped;
4019 int nEUI;
4020
4021 if (!hLBox)
4022 return FALSE;
4023
4024 hCombo = GetParent(es->hwndSelf);
4025 bDropped = TRUE;
4026 nEUI = 0;
4027
4028 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4029
4030 if (key == VK_UP || key == VK_DOWN)
4031 {
4032 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4033 nEUI = 1;
4034
4035 if (msg == WM_KEYDOWN || nEUI)
4036 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4037 }
4038
4039 switch (msg)
4040 {
4041 case WM_KEYDOWN:
4042 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4043 {
4044 /* make sure ComboLBox pops up */
4045 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4046 key = VK_F4;
4047 nEUI = 2;
4048 }
4049
4050 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4051 break;
4052
4053 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4054 if (nEUI)
4055 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4056 else
4057 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4058 break;
4059 }
4060
4061 if(nEUI == 2)
4062 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4063
4064 return TRUE;
4065 }
4066
4067
4068 /*********************************************************************
4069 *
4070 * WM_KEYDOWN
4071 *
4072 * Handling of special keys that don't produce a WM_CHAR
4073 * (i.e. non-printable keys) & Backspace & Delete
4074 *
4075 */
4076 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4077 {
4078 BOOL shift;
4079 BOOL control;
4080
4081 if (GetKeyState(VK_MENU) & 0x8000)
4082 return 0;
4083
4084 shift = GetKeyState(VK_SHIFT) & 0x8000;
4085 control = GetKeyState(VK_CONTROL) & 0x8000;
4086
4087 switch (key) {
4088 case VK_F4:
4089 case VK_UP:
4090 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4091 break;
4092
4093 /* fall through */
4094 case VK_LEFT:
4095 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4096 EDIT_MoveUp_ML(es, shift);
4097 else
4098 if (control)
4099 EDIT_MoveWordBackward(es, shift);
4100 else
4101 EDIT_MoveBackward(es, shift);
4102 break;
4103 case VK_DOWN:
4104 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4105 break;
4106 /* fall through */
4107 case VK_RIGHT:
4108 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4109 EDIT_MoveDown_ML(es, shift);
4110 else if (control)
4111 EDIT_MoveWordForward(es, shift);
4112 else
4113 EDIT_MoveForward(es, shift);
4114 break;
4115 case VK_HOME:
4116 EDIT_MoveHome(es, shift);
4117 break;
4118 case VK_END:
4119 EDIT_MoveEnd(es, shift);
4120 break;
4121 case VK_PRIOR:
4122 if (es->style & ES_MULTILINE)
4123 EDIT_MovePageUp_ML(es, shift);
4124 else
4125 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4126 break;
4127 case VK_NEXT:
4128 if (es->style & ES_MULTILINE)
4129 EDIT_MovePageDown_ML(es, shift);
4130 else
4131 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4132 break;
4133 case VK_DELETE:
4134 if (!(es->style & ES_READONLY) && !(shift && control)) {
4135 if (es->selection_start != es->selection_end) {
4136 if (shift)
4137 EDIT_WM_Cut(es);
4138 else
4139 EDIT_WM_Clear(es);
4140 } else {
4141 if (shift) {
4142 /* delete character left of caret */
4143 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4144 EDIT_MoveBackward(es, TRUE);
4145 EDIT_WM_Clear(es);
4146 } else if (control) {
4147 /* delete to end of line */
4148 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4149 EDIT_MoveEnd(es, TRUE);
4150 EDIT_WM_Clear(es);
4151 } else {
4152 /* delete character right of caret */
4153 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4154 EDIT_MoveForward(es, TRUE);
4155 EDIT_WM_Clear(es);
4156 }
4157 }
4158 }
4159 break;
4160 case VK_INSERT:
4161 if (shift) {
4162 if (!(es->style & ES_READONLY))
4163 EDIT_WM_Paste(es);
4164 } else if (control)
4165 EDIT_WM_Copy(es);
4166 break;
4167 case VK_RETURN:
4168 /* If the edit doesn't want the return send a message to the default object */
4169 if(!(es->style & ES_WANTRETURN))
4170 {
4171 HWND hwndParent = GetParent(es->hwndSelf);
4172 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4173 if (HIWORD(dw) == DC_HASDEFID)
4174 {
4175 SendMessageW( hwndParent, WM_COMMAND,
4176 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4177 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4178 }
4179 }
4180 break;
4181 }
4182 return 0;
4183 }
4184
4185
4186 /*********************************************************************
4187 *
4188 * WM_KILLFOCUS
4189 *
4190 */
4191 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4192 {
4193 es->flags &= ~EF_FOCUSED;
4194 DestroyCaret();
4195 if(!(es->style & ES_NOHIDESEL))
4196 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4197 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4198 return 0;
4199 }
4200
4201
4202 /*********************************************************************
4203 *
4204 * WM_LBUTTONDBLCLK
4205 *
4206 * The caret position has been set on the WM_LBUTTONDOWN message
4207 *
4208 */
4209 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4210 {
4211 INT s;
4212 INT e = es->selection_end;
4213 INT l;
4214 INT li;
4215 INT ll;
4216
4217 if (!(es->flags & EF_FOCUSED))
4218 return 0;
4219
4220 l = EDIT_EM_LineFromChar(es, e);
4221 li = EDIT_EM_LineIndex(es, l);
4222 ll = EDIT_EM_LineLength(es, e);
4223 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4224 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4225 EDIT_EM_SetSel(es, s, e, FALSE);
4226 EDIT_EM_ScrollCaret(es);
4227 return 0;
4228 }
4229
4230
4231 /*********************************************************************
4232 *
4233 * WM_LBUTTONDOWN
4234 *
4235 */
4236 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4237 {
4238 INT e;
4239 BOOL after_wrap;
4240
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 }
useful hacks and other patches not (yet) suitable for mainline