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Add some missing prototypes.
[wine/multimedia.git] / controls / edit.c
blob978914fce97573a856c4a9b0626f6bf38dfa5fd6
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 <string.h>
43 #include <stdlib.h>
44
45 #include "winbase.h"
46 #include "winnt.h"
47 #include "wownt32.h"
48 #include "win.h"
49 #include "wine/winbase16.h"
50 #include "wine/winuser16.h"
51 #include "wine/unicode.h"
52 #include "controls.h"
53 #include "local.h"
54 #include "user.h"
55 #include "wine/debug.h"
56
57 WINE_DEFAULT_DEBUG_CHANNEL(edit);
58 WINE_DECLARE_DEBUG_CHANNEL(combo);
59 WINE_DECLARE_DEBUG_CHANNEL(relay);
60
61 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
62 FIXME: BTW, new specs say 65535 (do you dare ???) */
63 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
64 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
65 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
66 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
67
68 /*
69 * extra flags for EDITSTATE.flags field
70 */
71 #define EF_MODIFIED 0x0001 /* text has been modified */
72 #define EF_FOCUSED 0x0002 /* we have input focus */
73 #define EF_UPDATE 0x0004 /* notify parent of changed state */
74 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
75 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
76 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
77 wrapped line, instead of in front of the next character */
78 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
79
80 typedef enum
81 {
82 END_0 = 0, /* line ends with terminating '\0' character */
83 END_WRAP, /* line is wrapped */
84 END_HARD, /* line ends with a hard return '\r\n' */
85 END_SOFT, /* line ends with a soft return '\r\r\n' */
86 END_RICH /* line ends with a single '\n' */
87 } LINE_END;
88
89 typedef struct tagLINEDEF {
90 INT length; /* bruto length of a line in bytes */
91 INT net_length; /* netto length of a line in visible characters */
92 LINE_END ending;
93 INT width; /* width of the line in pixels */
94 INT index; /* line index into the buffer */
95 struct tagLINEDEF *next;
96 } LINEDEF;
97
98 typedef struct
99 {
100 BOOL is_unicode; /* how the control was created */
101 LPWSTR text; /* the actual contents of the control */
102 UINT buffer_size; /* the size of the buffer in characters */
103 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
104 HFONT font; /* NULL means standard system font */
105 INT x_offset; /* scroll offset for multi lines this is in pixels
106 for single lines it's in characters */
107 INT line_height; /* height of a screen line in pixels */
108 INT char_width; /* average character width in pixels */
109 DWORD style; /* sane version of wnd->dwStyle */
110 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
111 INT undo_insert_count; /* number of characters inserted in sequence */
112 UINT undo_position; /* character index of the insertion and deletion */
113 LPWSTR undo_text; /* deleted text */
114 UINT undo_buffer_size; /* size of the deleted text buffer */
115 INT selection_start; /* == selection_end if no selection */
116 INT selection_end; /* == current caret position */
117 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
118 INT left_margin; /* in pixels */
119 INT right_margin; /* in pixels */
120 RECT format_rect;
121 INT text_width; /* width of the widest line in pixels for multi line controls
122 and just line width for single line controls */
123 INT region_posx; /* Position of cursor relative to region: */
124 INT region_posy; /* -1: to left, 0: within, 1: to right */
125 EDITWORDBREAKPROC16 word_break_proc16;
126 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
127 INT line_count; /* number of lines */
128 INT y_offset; /* scroll offset in number of lines */
129 BOOL bCaptureState; /* flag indicating whether mouse was captured */
130 BOOL bEnableState; /* flag keeping the enable state */
131 HWND hwndSelf; /* the our window handle */
132 HWND hwndParent; /* Handle of parent for sending EN_* messages.
133 Even if parent will change, EN_* messages
134 should be sent to the first parent. */
135 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
136 /*
137 * only for multi line controls
138 */
139 INT lock_count; /* amount of re-entries in the EditWndProc */
140 INT tabs_count;
141 LPINT tabs;
142 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
143 HLOCAL hloc32W; /* our unicode local memory block */
144 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
145 or EM_SETHANDLE16 */
146 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
147 or EM_SETHANDLE */
148 } EDITSTATE;
149
150
151 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
152 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
153
154 /* used for disabled or read-only edit control */
155 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
156 do \
157 { /* Notify parent which has created this edit control */ \
158 TRACE("notification " str " sent to hwnd=%p\n", es->hwndParent); \
159 SendMessageW(es->hwndParent, WM_COMMAND, \
160 MAKEWPARAM(GetWindowLongW((es->hwndSelf),GWL_ID), wNotifyCode), \
161 (LPARAM)(es->hwndSelf)); \
162 } while(0)
163
164 /*********************************************************************
165 *
166 * Declarations
167 *
168 */
169
170 /*
171 * These functions have trivial implementations
172 * We still like to call them internally
173 * "static inline" makes them more like macro's
174 */
175 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
176 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
177 static inline void EDIT_WM_Clear(EDITSTATE *es);
178 static inline void EDIT_WM_Cut(EDITSTATE *es);
179
180 /*
181 * Helper functions only valid for one type of control
182 */
183 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
184 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
185 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
186 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
187 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
188 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
189 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
190 /*
191 * Helper functions valid for both single line _and_ multi line controls
192 */
193 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
194 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
195 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
196 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
197 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
198 static void EDIT_LockBuffer(EDITSTATE *es);
199 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size, BOOL honor_limit);
200 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
201 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
202 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
203 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
204 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
205 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
206 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
207 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
208 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
209 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
210 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
211 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
212 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
213 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
214 /*
215 * EM_XXX message handlers
216 */
217 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
218 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
219 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
220 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
221 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
222 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
223 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
224 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
225 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
226 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
227 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
228 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
229 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
230 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
231 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
232 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
233 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
234 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
235 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
236 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
237 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
238 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
239 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
240 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
241 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam);
242 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
243 static BOOL EDIT_EM_Undo(EDITSTATE *es);
244 /*
245 * WM_XXX message handlers
246 */
247 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
248 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
249 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
250 static void EDIT_WM_Copy(EDITSTATE *es);
251 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
252 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
253 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
254 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
255 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
256 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
257 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
258 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
259 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
260 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
261 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
262 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
263 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
264 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam);
265 static void EDIT_WM_Paste(EDITSTATE *es);
266 static void EDIT_WM_SetFocus(EDITSTATE *es);
267 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
268 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode);
269 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
270 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
271 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
272 static void EDIT_WM_Timer(EDITSTATE *es);
273 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
274 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
275 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
276
277 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
278 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
279
280 /*********************************************************************
281 * edit class descriptor
282 */
283 const struct builtin_class_descr EDIT_builtin_class =
284 {
285 "Edit", /* name */
286 CS_GLOBALCLASS | CS_DBLCLKS | CS_PARENTDC, /* style */
287 EditWndProcA, /* procA */
288 EditWndProcW, /* procW */
289 sizeof(EDITSTATE *), /* extra */
290 IDC_IBEAMA, /* cursor */
291 0 /* brush */
292 };
293
294
295 /*********************************************************************
296 *
297 * EM_CANUNDO
298 *
299 */
300 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
301 {
302 return (es->undo_insert_count || strlenW(es->undo_text));
303 }
304
305
306 /*********************************************************************
307 *
308 * EM_EMPTYUNDOBUFFER
309 *
310 */
311 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
312 {
313 es->undo_insert_count = 0;
314 *es->undo_text = '\0';
315 }
316
317
318 /*********************************************************************
319 *
320 * WM_CLEAR
321 *
322 */
323 static inline void EDIT_WM_Clear(EDITSTATE *es)
324 {
325 static const WCHAR empty_stringW[] = {0};
326
327 /* Protect read-only edit control from modification */
328 if(es->style & ES_READONLY)
329 return;
330
331 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
332 }
333
334
335 /*********************************************************************
336 *
337 * WM_CUT
338 *
339 */
340 static inline void EDIT_WM_Cut(EDITSTATE *es)
341 {
342 EDIT_WM_Copy(es);
343 EDIT_WM_Clear(es);
344 }
345
346
347 /**********************************************************************
348 * get_app_version
349 *
350 * Returns the window version in case Wine emulates a later version
351 * of windows then the application expects.
352 *
353 * In a number of cases when windows runs an application that was
354 * designed for an earlier windows version, windows reverts
355 * to "old" behaviour of that earlier version.
356 *
357 * An example is a disabled edit control that needs to be painted.
358 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
359 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
360 * applications with an expected version 0f 4.0 or higher.
361 *
362 */
363 static DWORD get_app_version(void)
364 {
365 static DWORD version;
366 if (!version)
367 {
368 DWORD dwEmulatedVersion;
369 OSVERSIONINFOW info;
370 DWORD dwProcVersion = GetProcessVersion(0);
371
372 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
373 GetVersionExW( &info );
374 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
375 /* FIXME: this may not be 100% correct; see discussion on the
376 * wine developer list in Nov 1999 */
377 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
378 }
379 return version;
380 }
381
382
383 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
384 {
385 UINT msg;
386
387 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
388 msg = WM_CTLCOLORSTATIC;
389 else
390 msg = WM_CTLCOLOREDIT;
391
392 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
393 return (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
394 }
395
396 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
397 {
398 if(unicode)
399 return DefWindowProcW(hwnd, msg, wParam, lParam);
400 else
401 return DefWindowProcA(hwnd, msg, wParam, lParam);
402 }
403
404 /*********************************************************************
405 *
406 * EditWndProc_common
407 *
408 * The messages are in the order of the actual integer values
409 * (which can be found in include/windows.h)
410 * Wherever possible the 16 bit versions are converted to
411 * the 32 bit ones, so that we can 'fall through' to the
412 * helper functions. These are mostly 32 bit (with a few
413 * exceptions, clearly indicated by a '16' extension to their
414 * names).
415 *
416 */
417 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
418 WPARAM wParam, LPARAM lParam, BOOL unicode )
419 {
420 EDITSTATE *es = (EDITSTATE *)GetWindowLongW( hwnd, 0 );
421 LRESULT result = 0;
422
423 TRACE("hwnd=%p msg=%x wparam=%x lparam=%lx\n", hwnd, msg, wParam, lParam);
424
425 if (!es && msg != WM_NCCREATE)
426 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
427 else if (msg == WM_NCCREATE)
428 return EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
429 else if (msg == WM_DESTROY)
430 return EDIT_WM_Destroy(es);
431
432
433 if (es) EDIT_LockBuffer(es);
434
435 switch (msg) {
436 case EM_GETSEL16:
437 wParam = 0;
438 lParam = 0;
439 /* fall through */
440 case EM_GETSEL:
441 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
442 break;
443
444 case EM_SETSEL16:
445 if (SLOWORD(lParam) == -1)
446 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
447 else
448 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
449 if (!wParam)
450 EDIT_EM_ScrollCaret(es);
451 result = 1;
452 break;
453 case EM_SETSEL:
454 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
455 EDIT_EM_ScrollCaret(es);
456 result = 1;
457 break;
458
459 case EM_GETRECT16:
460 if (lParam)
461 CONV_RECT32TO16(&es->format_rect, MapSL(lParam));
462 break;
463 case EM_GETRECT:
464 if (lParam)
465 CopyRect((LPRECT)lParam, &es->format_rect);
466 break;
467
468 case EM_SETRECT16:
469 if ((es->style & ES_MULTILINE) && lParam) {
470 RECT rc;
471 CONV_RECT16TO32(MapSL(lParam), &rc);
472 EDIT_SetRectNP(es, &rc);
473 EDIT_UpdateText(es, NULL, TRUE);
474 }
475 break;
476 case EM_SETRECT:
477 if ((es->style & ES_MULTILINE) && lParam) {
478 EDIT_SetRectNP(es, (LPRECT)lParam);
479 EDIT_UpdateText(es, NULL, TRUE);
480 }
481 break;
482
483 case EM_SETRECTNP16:
484 if ((es->style & ES_MULTILINE) && lParam) {
485 RECT rc;
486 CONV_RECT16TO32(MapSL(lParam), &rc);
487 EDIT_SetRectNP(es, &rc);
488 }
489 break;
490 case EM_SETRECTNP:
491 if ((es->style & ES_MULTILINE) && lParam)
492 EDIT_SetRectNP(es, (LPRECT)lParam);
493 break;
494
495 case EM_SCROLL16:
496 case EM_SCROLL:
497 result = EDIT_EM_Scroll(es, (INT)wParam);
498 break;
499
500 case EM_LINESCROLL16:
501 wParam = (WPARAM)(INT)SHIWORD(lParam);
502 lParam = (LPARAM)(INT)SLOWORD(lParam);
503 /* fall through */
504 case EM_LINESCROLL:
505 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
506 break;
507
508 case EM_SCROLLCARET16:
509 case EM_SCROLLCARET:
510 EDIT_EM_ScrollCaret(es);
511 result = 1;
512 break;
513
514 case EM_GETMODIFY16:
515 case EM_GETMODIFY:
516 result = ((es->flags & EF_MODIFIED) != 0);
517 break;
518
519 case EM_SETMODIFY16:
520 case EM_SETMODIFY:
521 if (wParam)
522 es->flags |= EF_MODIFIED;
523 else
524 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
525 break;
526
527 case EM_GETLINECOUNT16:
528 case EM_GETLINECOUNT:
529 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
530 break;
531
532 case EM_LINEINDEX16:
533 if ((INT16)wParam == -1)
534 wParam = (WPARAM)-1;
535 /* fall through */
536 case EM_LINEINDEX:
537 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
538 break;
539
540 case EM_SETHANDLE16:
541 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
542 break;
543 case EM_SETHANDLE:
544 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
545 break;
546
547 case EM_GETHANDLE16:
548 result = (LRESULT)EDIT_EM_GetHandle16(es);
549 break;
550 case EM_GETHANDLE:
551 result = (LRESULT)EDIT_EM_GetHandle(es);
552 break;
553
554 case EM_GETTHUMB16:
555 case EM_GETTHUMB:
556 result = EDIT_EM_GetThumb(es);
557 break;
558
559 /* these messages missing from specs */
560 case WM_USER+15:
561 case 0x00bf:
562 case WM_USER+16:
563 case 0x00c0:
564 case WM_USER+19:
565 case 0x00c3:
566 case WM_USER+26:
567 case 0x00ca:
568 FIXME("undocumented message 0x%x, please report\n", msg);
569 result = DefWindowProcW(hwnd, msg, wParam, lParam);
570 break;
571
572 case EM_LINELENGTH16:
573 case EM_LINELENGTH:
574 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
575 break;
576
577 case EM_REPLACESEL16:
578 lParam = (LPARAM)MapSL(lParam);
579 unicode = FALSE; /* 16-bit message is always ascii */
580 /* fall through */
581 case EM_REPLACESEL:
582 {
583 LPWSTR textW;
584
585 if(unicode)
586 textW = (LPWSTR)lParam;
587 else
588 {
589 LPSTR textA = (LPSTR)lParam;
590 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
591 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
592 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
593 }
594
595 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
596 result = 1;
597
598 if(!unicode)
599 HeapFree(GetProcessHeap(), 0, textW);
600 break;
601 }
602
603 case EM_GETLINE16:
604 lParam = (LPARAM)MapSL(lParam);
605 unicode = FALSE; /* 16-bit message is always ascii */
606 /* fall through */
607 case EM_GETLINE:
608 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
609 break;
610
611 case EM_LIMITTEXT16:
612 case EM_SETLIMITTEXT:
613 EDIT_EM_SetLimitText(es, (INT)wParam);
614 break;
615
616 case EM_CANUNDO16:
617 case EM_CANUNDO:
618 result = (LRESULT)EDIT_EM_CanUndo(es);
619 break;
620
621 case EM_UNDO16:
622 case EM_UNDO:
623 case WM_UNDO:
624 result = (LRESULT)EDIT_EM_Undo(es);
625 break;
626
627 case EM_FMTLINES16:
628 case EM_FMTLINES:
629 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
630 break;
631
632 case EM_LINEFROMCHAR16:
633 case EM_LINEFROMCHAR:
634 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
635 break;
636
637 case EM_SETTABSTOPS16:
638 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
639 break;
640 case EM_SETTABSTOPS:
641 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
642 break;
643
644 case EM_SETPASSWORDCHAR16:
645 unicode = FALSE; /* 16-bit message is always ascii */
646 /* fall through */
647 case EM_SETPASSWORDCHAR:
648 {
649 WCHAR charW = 0;
650
651 if(unicode)
652 charW = (WCHAR)wParam;
653 else
654 {
655 CHAR charA = wParam;
656 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
657 }
658
659 EDIT_EM_SetPasswordChar(es, charW);
660 break;
661 }
662
663 case EM_EMPTYUNDOBUFFER16:
664 case EM_EMPTYUNDOBUFFER:
665 EDIT_EM_EmptyUndoBuffer(es);
666 break;
667
668 case EM_GETFIRSTVISIBLELINE16:
669 result = es->y_offset;
670 break;
671 case EM_GETFIRSTVISIBLELINE:
672 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
673 break;
674
675 case EM_SETREADONLY16:
676 case EM_SETREADONLY:
677 if (wParam) {
678 SetWindowLongW( hwnd, GWL_STYLE,
679 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
680 es->style |= ES_READONLY;
681 } else {
682 SetWindowLongW( hwnd, GWL_STYLE,
683 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
684 es->style &= ~ES_READONLY;
685 }
686 result = 1;
687 break;
688
689 case EM_SETWORDBREAKPROC16:
690 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
691 break;
692 case EM_SETWORDBREAKPROC:
693 EDIT_EM_SetWordBreakProc(es, lParam);
694 break;
695
696 case EM_GETWORDBREAKPROC16:
697 result = (LRESULT)es->word_break_proc16;
698 break;
699 case EM_GETWORDBREAKPROC:
700 result = (LRESULT)es->word_break_proc;
701 break;
702
703 case EM_GETPASSWORDCHAR16:
704 unicode = FALSE; /* 16-bit message is always ascii */
705 /* fall through */
706 case EM_GETPASSWORDCHAR:
707 {
708 if(unicode)
709 result = es->password_char;
710 else
711 {
712 WCHAR charW = es->password_char;
713 CHAR charA = 0;
714 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
715 result = charA;
716 }
717 break;
718 }
719
720 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
721
722 case EM_SETMARGINS:
723 EDIT_EM_SetMargins(es, (INT)wParam, SLOWORD(lParam), SHIWORD(lParam));
724 break;
725
726 case EM_GETMARGINS:
727 result = MAKELONG(es->left_margin, es->right_margin);
728 break;
729
730 case EM_GETLIMITTEXT:
731 result = es->buffer_limit;
732 break;
733
734 case EM_POSFROMCHAR:
735 result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
736 break;
737
738 case EM_CHARFROMPOS:
739 result = EDIT_EM_CharFromPos(es, SLOWORD(lParam), SHIWORD(lParam));
740 break;
741
742 /* End of the EM_ messages which were in numerical order; what order
743 * are these in? vaguely alphabetical?
744 */
745
746 case WM_GETDLGCODE:
747 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
748
749 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
750 {
751 int vk = (int)((LPMSG)lParam)->wParam;
752
753 if (vk == VK_RETURN && (GetWindowLongW( hwnd, GWL_STYLE ) & ES_WANTRETURN))
754 {
755 result |= DLGC_WANTMESSAGE;
756 }
757 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
758 {
759 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
760 result |= DLGC_WANTMESSAGE;
761 }
762 }
763 break;
764
765 case WM_CHAR:
766 {
767 WCHAR charW;
768
769 if(unicode)
770 charW = wParam;
771 else
772 {
773 CHAR charA = wParam;
774 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
775 }
776
777 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
778 {
779 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
780 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
781 break;
782 }
783 EDIT_WM_Char(es, charW);
784 break;
785 }
786
787 case WM_CLEAR:
788 EDIT_WM_Clear(es);
789 break;
790
791 case WM_COMMAND:
792 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
793 break;
794
795 case WM_CONTEXTMENU:
796 EDIT_WM_ContextMenu(es, SLOWORD(lParam), SHIWORD(lParam));
797 break;
798
799 case WM_COPY:
800 EDIT_WM_Copy(es);
801 break;
802
803 case WM_CREATE:
804 if(unicode)
805 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
806 else
807 {
808 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
809 LPWSTR nameW = NULL;
810 if(nameA)
811 {
812 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
813 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
814 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
815 }
816 result = EDIT_WM_Create(es, nameW);
817 if(nameW)
818 HeapFree(GetProcessHeap(), 0, nameW);
819 }
820 break;
821
822 case WM_CUT:
823 EDIT_WM_Cut(es);
824 break;
825
826 case WM_ENABLE:
827 es->bEnableState = (BOOL) wParam;
828 EDIT_UpdateText(es, NULL, TRUE);
829 break;
830
831 case WM_ERASEBKGND:
832 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
833 break;
834
835 case WM_GETFONT:
836 result = (LRESULT)es->font;
837 break;
838
839 case WM_GETTEXT:
840 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
841 break;
842
843 case WM_GETTEXTLENGTH:
844 if (unicode) result = strlenW(es->text);
845 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
846 NULL, 0, NULL, NULL );
847 break;
848
849 case WM_HSCROLL:
850 result = EDIT_WM_HScroll(es, LOWORD(wParam), SHIWORD(wParam));
851 break;
852
853 case WM_KEYDOWN:
854 result = EDIT_WM_KeyDown(es, (INT)wParam);
855 break;
856
857 case WM_KILLFOCUS:
858 result = EDIT_WM_KillFocus(es);
859 break;
860
861 case WM_LBUTTONDBLCLK:
862 result = EDIT_WM_LButtonDblClk(es);
863 break;
864
865 case WM_LBUTTONDOWN:
866 result = EDIT_WM_LButtonDown(es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
867 break;
868
869 case WM_LBUTTONUP:
870 result = EDIT_WM_LButtonUp(es);
871 break;
872
873 case WM_MBUTTONDOWN:
874 result = EDIT_WM_MButtonDown(es);
875 break;
876
877 case WM_MOUSEACTIVATE:
878 /*
879 * FIXME: maybe DefWindowProc() screws up, but it seems that
880 * modeless dialog boxes need this. If we don't do this, the focus
881 * will _not_ be set by DefWindowProc() for edit controls in a
882 * modeless dialog box ???
883 */
884 SetFocus(hwnd);
885 result = MA_ACTIVATE;
886 break;
887
888 case WM_MOUSEMOVE:
889 result = EDIT_WM_MouseMove(es, SLOWORD(lParam), SHIWORD(lParam));
890 break;
891
892 case WM_PAINT:
893 EDIT_WM_Paint(es, wParam);
894 break;
895
896 case WM_PASTE:
897 EDIT_WM_Paste(es);
898 break;
899
900 case WM_SETFOCUS:
901 EDIT_WM_SetFocus(es);
902 break;
903
904 case WM_SETFONT:
905 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
906 break;
907
908 case WM_SETREDRAW:
909 /* FIXME: actually set an internal flag and behave accordingly */
910 break;
911
912 case WM_SETTEXT:
913 EDIT_WM_SetText(es, lParam, unicode);
914 result = TRUE;
915 break;
916
917 case WM_SIZE:
918 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
919 break;
920
921 case WM_STYLECHANGED:
922 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
923 break;
924
925 case WM_STYLECHANGING:
926 result = 0; /* See EDIT_WM_StyleChanged */
927 break;
928
929 case WM_SYSKEYDOWN:
930 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
931 break;
932
933 case WM_TIMER:
934 EDIT_WM_Timer(es);
935 break;
936
937 case WM_VSCROLL:
938 result = EDIT_WM_VScroll(es, LOWORD(wParam), SHIWORD(wParam));
939 break;
940
941 case WM_MOUSEWHEEL:
942 {
943 int gcWheelDelta = 0;
944 UINT pulScrollLines = 3;
945 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
946
947 if (wParam & (MK_SHIFT | MK_CONTROL)) {
948 result = DefWindowProcW(hwnd, msg, wParam, lParam);
949 break;
950 }
951 gcWheelDelta -= SHIWORD(wParam);
952 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
953 {
954 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
955 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
956 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
957 }
958 }
959 break;
960 default:
961 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
962 break;
963 }
964
965 if (es) EDIT_UnlockBuffer(es, FALSE);
966
967 return result;
968 }
969
970 /*********************************************************************
971 *
972 * EditWndProcW (USER32.@)
973 */
974 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
975 {
976 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
977 }
978
979 /*********************************************************************
980 *
981 * EditWndProc (USER32.@)
982 */
983 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
984 {
985 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
986 }
987
988 /*********************************************************************
989 *
990 * EDIT_BuildLineDefs_ML
991 *
992 * Build linked list of text lines.
993 * Lines can end with '\0' (last line), a character (if it is wrapped),
994 * a soft return '\r\r\n' or a hard return '\r\n'
995 *
996 */
997 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
998 {
999 HDC dc;
1000 HFONT old_font = 0;
1001 LPWSTR current_position, cp;
1002 INT fw;
1003 LINEDEF *current_line;
1004 LINEDEF *previous_line;
1005 LINEDEF *start_line;
1006 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1007 INT line_count = es->line_count;
1008 INT orig_net_length;
1009 RECT rc;
1010
1011 if (istart == iend && delta == 0)
1012 return;
1013
1014 dc = GetDC(es->hwndSelf);
1015 if (es->font)
1016 old_font = SelectObject(dc, es->font);
1017
1018 previous_line = NULL;
1019 current_line = es->first_line_def;
1020
1021 /* Find starting line. istart must lie inside an existing line or
1022 * at the end of buffer */
1023 do {
1024 if (istart < current_line->index + current_line->length ||
1025 current_line->ending == END_0)
1026 break;
1027
1028 previous_line = current_line;
1029 current_line = current_line->next;
1030 line_index++;
1031 } while (current_line);
1032
1033 if (!current_line) /* Error occurred start is not inside previous buffer */
1034 {
1035 FIXME(" modification occurred outside buffer\n");
1036 return;
1037 }
1038
1039 /* Remember start of modifications in order to calculate update region */
1040 nstart_line = line_index;
1041 nstart_index = current_line->index;
1042
1043 /* We must start to reformat from the previous line since the modifications
1044 * may have caused the line to wrap upwards. */
1045 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1046 {
1047 line_index--;
1048 current_line = previous_line;
1049 }
1050 start_line = current_line;
1051
1052 fw = es->format_rect.right - es->format_rect.left;
1053 current_position = es->text + current_line->index;
1054 do {
1055 if (current_line != start_line)
1056 {
1057 if (!current_line || current_line->index + delta > current_position - es->text)
1058 {
1059 /* The buffer has been expanded, create a new line and
1060 insert it into the link list */
1061 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1062 new_line->next = previous_line->next;
1063 previous_line->next = new_line;
1064 current_line = new_line;
1065 es->line_count++;
1066 }
1067 else if (current_line->index + delta < current_position - es->text)
1068 {
1069 /* The previous line merged with this line so we delete this extra entry */
1070 previous_line->next = current_line->next;
1071 HeapFree(GetProcessHeap(), 0, current_line);
1072 current_line = previous_line->next;
1073 es->line_count--;
1074 continue;
1075 }
1076 else /* current_line->index + delta == current_position */
1077 {
1078 if (current_position - es->text > iend)
1079 break; /* We reached end of line modifications */
1080 /* else recalulate this line */
1081 }
1082 }
1083
1084 current_line->index = current_position - es->text;
1085 orig_net_length = current_line->net_length;
1086
1087 /* Find end of line */
1088 cp = current_position;
1089 while (*cp) {
1090 if (*cp == '\n') break;
1091 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1092 break;
1093 cp++;
1094 }
1095
1096 /* Mark type of line termination */
1097 if (!(*cp)) {
1098 current_line->ending = END_0;
1099 current_line->net_length = strlenW(current_position);
1100 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1101 current_line->ending = END_SOFT;
1102 current_line->net_length = cp - current_position - 1;
1103 } else if (*cp == '\n') {
1104 current_line->ending = END_RICH;
1105 current_line->net_length = cp - current_position;
1106 } else {
1107 current_line->ending = END_HARD;
1108 current_line->net_length = cp - current_position;
1109 }
1110
1111 /* Calculate line width */
1112 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1113 current_position, current_line->net_length,
1114 es->tabs_count, es->tabs));
1115
1116 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1117 if ((!(es->style & ES_AUTOHSCROLL)) && (current_line->width > fw)) {
1118 INT next = 0;
1119 INT prev;
1120 do {
1121 prev = next;
1122 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1123 prev + 1, current_line->net_length, WB_RIGHT);
1124 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1125 current_position, next, es->tabs_count, es->tabs));
1126 } while (current_line->width <= fw);
1127 if (!prev) { /* Didn't find a line break so force a break */
1128 next = 0;
1129 do {
1130 prev = next;
1131 next++;
1132 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1133 current_position, next, es->tabs_count, es->tabs));
1134 } while (current_line->width <= fw);
1135 if (!prev)
1136 prev = 1;
1137 }
1138
1139 /* If the first line we are calculating, wrapped before istart, we must
1140 * adjust istart in order for this to be reflected in the update region. */
1141 if (current_line->index == nstart_index && istart > current_line->index + prev)
1142 istart = current_line->index + prev;
1143 /* else if we are updating the previous line before the first line we
1144 * are re-calculating and it expanded */
1145 else if (current_line == start_line &&
1146 current_line->index != nstart_index && orig_net_length < prev)
1147 {
1148 /* Line expanded due to an upwards line wrap so we must partially include
1149 * previous line in update region */
1150 nstart_line = line_index;
1151 nstart_index = current_line->index;
1152 istart = current_line->index + orig_net_length;
1153 }
1154
1155 current_line->net_length = prev;
1156 current_line->ending = END_WRAP;
1157 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1158 current_line->net_length, es->tabs_count, es->tabs));
1159 }
1160
1161
1162 /* Adjust length to include line termination */
1163 switch (current_line->ending) {
1164 case END_SOFT:
1165 current_line->length = current_line->net_length + 3;
1166 break;
1167 case END_RICH:
1168 current_line->length = current_line->net_length + 1;
1169 break;
1170 case END_HARD:
1171 current_line->length = current_line->net_length + 2;
1172 break;
1173 case END_WRAP:
1174 case END_0:
1175 current_line->length = current_line->net_length;
1176 break;
1177 }
1178 es->text_width = max(es->text_width, current_line->width);
1179 current_position += current_line->length;
1180 previous_line = current_line;
1181 current_line = current_line->next;
1182 line_index++;
1183 } while (previous_line->ending != END_0);
1184
1185 /* Finish adjusting line indexes by delta or remove hanging lines */
1186 if (previous_line->ending == END_0)
1187 {
1188 LINEDEF *pnext = NULL;
1189
1190 previous_line->next = NULL;
1191 while (current_line)
1192 {
1193 pnext = current_line->next;
1194 HeapFree(GetProcessHeap(), 0, current_line);
1195 current_line = pnext;
1196 es->line_count--;
1197 }
1198 }
1199 else
1200 {
1201 while (current_line)
1202 {
1203 current_line->index += delta;
1204 current_line = current_line->next;
1205 }
1206 }
1207
1208 /* Calculate rest of modification rectangle */
1209 if (hrgn)
1210 {
1211 HRGN tmphrgn;
1212 /*
1213 * We calculate two rectangles. One for the first line which may have
1214 * an indent with respect to the format rect. The other is a format-width
1215 * rectangle that spans the rest of the lines that changed or moved.
1216 */
1217 rc.top = es->format_rect.top + nstart_line * es->line_height -
1218 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1219 rc.bottom = rc.top + es->line_height;
1220 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1221 es->text + nstart_index, istart - nstart_index,
1222 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1223 rc.right = es->format_rect.right;
1224 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1225
1226 rc.top = rc.bottom;
1227 rc.left = es->format_rect.left;
1228 rc.right = es->format_rect.right;
1229 /*
1230 * If lines were added or removed we must re-paint the remainder of the
1231 * lines since the remaining lines were either shifted up or down.
1232 */
1233 if (line_count < es->line_count) /* We added lines */
1234 rc.bottom = es->line_count * es->line_height;
1235 else if (line_count > es->line_count) /* We removed lines */
1236 rc.bottom = line_count * es->line_height;
1237 else
1238 rc.bottom = line_index * es->line_height;
1239 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1240 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1241 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1242 DeleteObject(tmphrgn);
1243 }
1244
1245 if (es->font)
1246 SelectObject(dc, old_font);
1247
1248 ReleaseDC(es->hwndSelf, dc);
1249 }
1250
1251 /*********************************************************************
1252 *
1253 * EDIT_CalcLineWidth_SL
1254 *
1255 */
1256 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1257 {
1258 es->text_width = SLOWORD(EDIT_EM_PosFromChar(es, strlenW(es->text), FALSE));
1259 }
1260
1261 /*********************************************************************
1262 *
1263 * EDIT_CallWordBreakProc
1264 *
1265 * Call appropriate WordBreakProc (internal or external).
1266 *
1267 * Note: The "start" argument should always be an index referring
1268 * to es->text. The actual wordbreak proc might be
1269 * 16 bit, so we can't always pass any 32 bit LPSTR.
1270 * Hence we assume that es->text is the buffer that holds
1271 * the string under examination (we can decide this for ourselves).
1272 *
1273 */
1274 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1275 {
1276 INT ret, iWndsLocks;
1277
1278 /* To avoid any deadlocks, all the locks on the window structures
1279 must be suspended before the control is passed to the application */
1280 iWndsLocks = WIN_SuspendWndsLock();
1281
1282 if (es->word_break_proc16) {
1283 HGLOBAL16 hglob16;
1284 SEGPTR segptr;
1285 INT countA;
1286 WORD args[5];
1287 DWORD result;
1288
1289 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1290 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1291 segptr = K32WOWGlobalLock16(hglob16);
1292 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1293 args[4] = SELECTOROF(segptr);
1294 args[3] = OFFSETOF(segptr);
1295 args[2] = index;
1296 args[1] = countA;
1297 args[0] = action;
1298 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1299 ret = LOWORD(result);
1300 GlobalUnlock16(hglob16);
1301 GlobalFree16(hglob16);
1302 }
1303 else if (es->word_break_proc)
1304 {
1305 if(es->is_unicode)
1306 {
1307 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1308
1309 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1310 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1311 ret = wbpW(es->text + start, index, count, action);
1312 }
1313 else
1314 {
1315 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1316 INT countA;
1317 CHAR *textA;
1318
1319 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1320 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1321 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1322 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1323 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1324 ret = wbpA(textA, index, countA, action);
1325 HeapFree(GetProcessHeap(), 0, textA);
1326 }
1327 }
1328 else
1329 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1330
1331 WIN_RestoreWndsLock(iWndsLocks);
1332 return ret;
1333 }
1334
1335
1336 /*********************************************************************
1337 *
1338 * EDIT_CharFromPos
1339 *
1340 * Beware: This is not the function called on EM_CHARFROMPOS
1341 * The position _can_ be outside the formatting / client
1342 * rectangle
1343 * The return value is only the character index
1344 *
1345 */
1346 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1347 {
1348 INT index;
1349 HDC dc;
1350 HFONT old_font = 0;
1351
1352 if (es->style & ES_MULTILINE) {
1353 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1354 INT line_index = 0;
1355 LINEDEF *line_def = es->first_line_def;
1356 INT low, high;
1357 while ((line > 0) && line_def->next) {
1358 line_index += line_def->length;
1359 line_def = line_def->next;
1360 line--;
1361 }
1362 x += es->x_offset - es->format_rect.left;
1363 if (x >= line_def->width) {
1364 if (after_wrap)
1365 *after_wrap = (line_def->ending == END_WRAP);
1366 return line_index + line_def->net_length;
1367 }
1368 if (x <= 0) {
1369 if (after_wrap)
1370 *after_wrap = FALSE;
1371 return line_index;
1372 }
1373 dc = GetDC(es->hwndSelf);
1374 if (es->font)
1375 old_font = SelectObject(dc, es->font);
1376 low = line_index + 1;
1377 high = line_index + line_def->net_length + 1;
1378 while (low < high - 1)
1379 {
1380 INT mid = (low + high) / 2;
1381 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1382 else low = mid;
1383 }
1384 index = low;
1385
1386 if (after_wrap)
1387 *after_wrap = ((index == line_index + line_def->net_length) &&
1388 (line_def->ending == END_WRAP));
1389 } else {
1390 LPWSTR text;
1391 SIZE size;
1392 if (after_wrap)
1393 *after_wrap = FALSE;
1394 x -= es->format_rect.left;
1395 if (!x)
1396 return es->x_offset;
1397 text = EDIT_GetPasswordPointer_SL(es);
1398 dc = GetDC(es->hwndSelf);
1399 if (es->font)
1400 old_font = SelectObject(dc, es->font);
1401 if (x < 0)
1402 {
1403 INT low = 0;
1404 INT high = es->x_offset;
1405 while (low < high - 1)
1406 {
1407 INT mid = (low + high) / 2;
1408 GetTextExtentPoint32W( dc, text + mid,
1409 es->x_offset - mid, &size );
1410 if (size.cx > -x) low = mid;
1411 else high = mid;
1412 }
1413 index = low;
1414 }
1415 else
1416 {
1417 INT low = es->x_offset;
1418 INT high = strlenW(es->text) + 1;
1419 while (low < high - 1)
1420 {
1421 INT mid = (low + high) / 2;
1422 GetTextExtentPoint32W( dc, text + es->x_offset,
1423 mid - es->x_offset, &size );
1424 if (size.cx > x) high = mid;
1425 else low = mid;
1426 }
1427 index = low;
1428 }
1429 if (es->style & ES_PASSWORD)
1430 HeapFree(GetProcessHeap(), 0, text);
1431 }
1432 if (es->font)
1433 SelectObject(dc, old_font);
1434 ReleaseDC(es->hwndSelf, dc);
1435 return index;
1436 }
1437
1438
1439 /*********************************************************************
1440 *
1441 * EDIT_ConfinePoint
1442 *
1443 * adjusts the point to be within the formatting rectangle
1444 * (so CharFromPos returns the nearest _visible_ character)
1445 *
1446 */
1447 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1448 {
1449 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1450 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1451 }
1452
1453
1454 /*********************************************************************
1455 *
1456 * EDIT_GetLineRect
1457 *
1458 * Calculates the bounding rectangle for a line from a starting
1459 * column to an ending column.
1460 *
1461 */
1462 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1463 {
1464 INT line_index = EDIT_EM_LineIndex(es, line);
1465
1466 if (es->style & ES_MULTILINE)
1467 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1468 else
1469 rc->top = es->format_rect.top;
1470 rc->bottom = rc->top + es->line_height;
1471 rc->left = (scol == 0) ? es->format_rect.left : SLOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1472 rc->right = (ecol == -1) ? es->format_rect.right : SLOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1473 }
1474
1475
1476 /*********************************************************************
1477 *
1478 * EDIT_GetPasswordPointer_SL
1479 *
1480 * note: caller should free the (optionally) allocated buffer
1481 *
1482 */
1483 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1484 {
1485 if (es->style & ES_PASSWORD) {
1486 INT len = strlenW(es->text);
1487 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1488 text[len] = '\0';
1489 while(len) text[--len] = es->password_char;
1490 return text;
1491 } else
1492 return es->text;
1493 }
1494
1495
1496 /*********************************************************************
1497 *
1498 * EDIT_LockBuffer
1499 *
1500 * This acts as a LOCAL_Lock(), but it locks only once. This way
1501 * you can call it whenever you like, without unlocking.
1502 *
1503 * Initially the edit control allocates a HLOCAL32 buffer
1504 * (32 bit linear memory handler). However, 16 bit application
1505 * might send a EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1506 * handler). From that moment on we have to keep using this 16 bit memory
1507 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1508 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1509 * conversion.
1510 *
1511 */
1512 static void EDIT_LockBuffer(EDITSTATE *es)
1513 {
1514 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
1515 if (!es->text) {
1516 CHAR *textA = NULL;
1517 UINT countA = 0;
1518 BOOL _16bit = FALSE;
1519
1520 if(es->hloc32W)
1521 {
1522 if(es->hloc32A)
1523 {
1524 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1525 textA = LocalLock(es->hloc32A);
1526 countA = strlen(textA) + 1;
1527 }
1528 else if(es->hloc16)
1529 {
1530 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1531 textA = LOCAL_Lock(hInstance, es->hloc16);
1532 countA = strlen(textA) + 1;
1533 _16bit = TRUE;
1534 }
1535 }
1536 else {
1537 ERR("no buffer ... please report\n");
1538 return;
1539 }
1540
1541 if(textA)
1542 {
1543 HLOCAL hloc32W_new;
1544 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1545 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1546 if(countW_new > es->buffer_size + 1)
1547 {
1548 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1549 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1550 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1551 if(hloc32W_new)
1552 {
1553 es->hloc32W = hloc32W_new;
1554 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1555 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1556 }
1557 else
1558 WARN("FAILED! Will synchronize partially\n");
1559 }
1560 }
1561
1562 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1563 es->text = LocalLock(es->hloc32W);
1564
1565 if(textA)
1566 {
1567 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1568 if(_16bit)
1569 LOCAL_Unlock(hInstance, es->hloc16);
1570 else
1571 LocalUnlock(es->hloc32A);
1572 }
1573 }
1574 es->lock_count++;
1575 }
1576
1577
1578 /*********************************************************************
1579 *
1580 * EDIT_SL_InvalidateText
1581 *
1582 * Called from EDIT_InvalidateText().
1583 * Does the job for single-line controls only.
1584 *
1585 */
1586 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1587 {
1588 RECT line_rect;
1589 RECT rc;
1590
1591 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1592 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1593 EDIT_UpdateText(es, &rc, TRUE);
1594 }
1595
1596
1597 /*********************************************************************
1598 *
1599 * EDIT_ML_InvalidateText
1600 *
1601 * Called from EDIT_InvalidateText().
1602 * Does the job for multi-line controls only.
1603 *
1604 */
1605 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1606 {
1607 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1608 INT sl = EDIT_EM_LineFromChar(es, start);
1609 INT el = EDIT_EM_LineFromChar(es, end);
1610 INT sc;
1611 INT ec;
1612 RECT rc1;
1613 RECT rcWnd;
1614 RECT rcLine;
1615 RECT rcUpdate;
1616 INT l;
1617
1618 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1619 return;
1620
1621 sc = start - EDIT_EM_LineIndex(es, sl);
1622 ec = end - EDIT_EM_LineIndex(es, el);
1623 if (sl < es->y_offset) {
1624 sl = es->y_offset;
1625 sc = 0;
1626 }
1627 if (el > es->y_offset + vlc) {
1628 el = es->y_offset + vlc;
1629 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1630 }
1631 GetClientRect(es->hwndSelf, &rc1);
1632 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1633 if (sl == el) {
1634 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1635 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1636 EDIT_UpdateText(es, &rcUpdate, TRUE);
1637 } else {
1638 EDIT_GetLineRect(es, sl, sc,
1639 EDIT_EM_LineLength(es,
1640 EDIT_EM_LineIndex(es, sl)),
1641 &rcLine);
1642 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1643 EDIT_UpdateText(es, &rcUpdate, TRUE);
1644 for (l = sl + 1 ; l < el ; l++) {
1645 EDIT_GetLineRect(es, l, 0,
1646 EDIT_EM_LineLength(es,
1647 EDIT_EM_LineIndex(es, l)),
1648 &rcLine);
1649 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1650 EDIT_UpdateText(es, &rcUpdate, TRUE);
1651 }
1652 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1653 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1654 EDIT_UpdateText(es, &rcUpdate, TRUE);
1655 }
1656 }
1657
1658
1659 /*********************************************************************
1660 *
1661 * EDIT_InvalidateText
1662 *
1663 * Invalidate the text from offset start upto, but not including,
1664 * offset end. Useful for (re)painting the selection.
1665 * Regions outside the linewidth are not invalidated.
1666 * end == -1 means end == TextLength.
1667 * start and end need not be ordered.
1668 *
1669 */
1670 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1671 {
1672 if (end == start)
1673 return;
1674
1675 if (end == -1)
1676 end = strlenW(es->text);
1677
1678 if (end < start) {
1679 INT tmp = start;
1680 start = end;
1681 end = tmp;
1682 }
1683
1684 if (es->style & ES_MULTILINE)
1685 EDIT_ML_InvalidateText(es, start, end);
1686 else
1687 EDIT_SL_InvalidateText(es, start, end);
1688 }
1689
1690
1691 /*********************************************************************
1692 *
1693 * EDIT_MakeFit
1694 *
1695 * Try to fit size + 1 characters in the buffer.
1696 * Constrain to limits if honor_limit is TRUE.
1697 */
1698 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size, BOOL honor_limit)
1699 {
1700 HLOCAL hNew32W;
1701
1702 if (size <= es->buffer_size)
1703 return TRUE;
1704
1705 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
1706 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
1707 return FALSE;
1708 }
1709
1710 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1711
1712 /* Force edit to unlock it's buffer. es->text now NULL */
1713 EDIT_UnlockBuffer(es, TRUE);
1714
1715 if (es->hloc32W) {
1716 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1717 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1718 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1719 es->hloc32W = hNew32W;
1720 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1721 }
1722 }
1723
1724 EDIT_LockBuffer(es);
1725
1726 if (es->buffer_size < size) {
1727 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1728 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1729 return FALSE;
1730 } else {
1731 TRACE("We now have %d+1\n", es->buffer_size);
1732 return TRUE;
1733 }
1734 }
1735
1736
1737 /*********************************************************************
1738 *
1739 * EDIT_MakeUndoFit
1740 *
1741 * Try to fit size + 1 bytes in the undo buffer.
1742 *
1743 */
1744 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1745 {
1746 UINT alloc_size;
1747
1748 if (size <= es->undo_buffer_size)
1749 return TRUE;
1750
1751 TRACE("trying to ReAlloc to %d+1\n", size);
1752
1753 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1754 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1755 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1756 return TRUE;
1757 }
1758 else
1759 {
1760 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1761 return FALSE;
1762 }
1763 }
1764
1765
1766 /*********************************************************************
1767 *
1768 * EDIT_MoveBackward
1769 *
1770 */
1771 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1772 {
1773 INT e = es->selection_end;
1774
1775 if (e) {
1776 e--;
1777 if ((es->style & ES_MULTILINE) && e &&
1778 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1779 e--;
1780 if (e && (es->text[e - 1] == '\r'))
1781 e--;
1782 }
1783 }
1784 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1785 EDIT_EM_ScrollCaret(es);
1786 }
1787
1788
1789 /*********************************************************************
1790 *
1791 * EDIT_MoveDown_ML
1792 *
1793 * Only for multi line controls
1794 * Move the caret one line down, on a column with the nearest
1795 * x coordinate on the screen (might be a different column).
1796 *
1797 */
1798 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1799 {
1800 INT s = es->selection_start;
1801 INT e = es->selection_end;
1802 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1803 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1804 INT x = SLOWORD(pos);
1805 INT y = SHIWORD(pos);
1806
1807 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1808 if (!extend)
1809 s = e;
1810 EDIT_EM_SetSel(es, s, e, after_wrap);
1811 EDIT_EM_ScrollCaret(es);
1812 }
1813
1814
1815 /*********************************************************************
1816 *
1817 * EDIT_MoveEnd
1818 *
1819 */
1820 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1821 {
1822 BOOL after_wrap = FALSE;
1823 INT e;
1824
1825 /* Pass a high value in x to make sure of receiving the end of the line */
1826 if (es->style & ES_MULTILINE)
1827 e = EDIT_CharFromPos(es, 0x3fffffff,
1828 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1829 else
1830 e = strlenW(es->text);
1831 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1832 EDIT_EM_ScrollCaret(es);
1833 }
1834
1835
1836 /*********************************************************************
1837 *
1838 * EDIT_MoveForward
1839 *
1840 */
1841 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1842 {
1843 INT e = es->selection_end;
1844
1845 if (es->text[e]) {
1846 e++;
1847 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1848 if (es->text[e] == '\n')
1849 e++;
1850 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1851 e += 2;
1852 }
1853 }
1854 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1855 EDIT_EM_ScrollCaret(es);
1856 }
1857
1858
1859 /*********************************************************************
1860 *
1861 * EDIT_MoveHome
1862 *
1863 * Home key: move to beginning of line.
1864 *
1865 */
1866 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1867 {
1868 INT e;
1869
1870 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1871 if (es->style & ES_MULTILINE)
1872 e = EDIT_CharFromPos(es, -es->x_offset,
1873 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1874 else
1875 e = 0;
1876 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1877 EDIT_EM_ScrollCaret(es);
1878 }
1879
1880
1881 /*********************************************************************
1882 *
1883 * EDIT_MovePageDown_ML
1884 *
1885 * Only for multi line controls
1886 * Move the caret one page down, on a column with the nearest
1887 * x coordinate on the screen (might be a different column).
1888 *
1889 */
1890 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1891 {
1892 INT s = es->selection_start;
1893 INT e = es->selection_end;
1894 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1895 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1896 INT x = SLOWORD(pos);
1897 INT y = SHIWORD(pos);
1898
1899 e = EDIT_CharFromPos(es, x,
1900 y + (es->format_rect.bottom - es->format_rect.top),
1901 &after_wrap);
1902 if (!extend)
1903 s = e;
1904 EDIT_EM_SetSel(es, s, e, after_wrap);
1905 EDIT_EM_ScrollCaret(es);
1906 }
1907
1908
1909 /*********************************************************************
1910 *
1911 * EDIT_MovePageUp_ML
1912 *
1913 * Only for multi line controls
1914 * Move the caret one page up, on a column with the nearest
1915 * x coordinate on the screen (might be a different column).
1916 *
1917 */
1918 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1919 {
1920 INT s = es->selection_start;
1921 INT e = es->selection_end;
1922 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1923 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1924 INT x = SLOWORD(pos);
1925 INT y = SHIWORD(pos);
1926
1927 e = EDIT_CharFromPos(es, x,
1928 y - (es->format_rect.bottom - es->format_rect.top),
1929 &after_wrap);
1930 if (!extend)
1931 s = e;
1932 EDIT_EM_SetSel(es, s, e, after_wrap);
1933 EDIT_EM_ScrollCaret(es);
1934 }
1935
1936
1937 /*********************************************************************
1938 *
1939 * EDIT_MoveUp_ML
1940 *
1941 * Only for multi line controls
1942 * Move the caret one line up, on a column with the nearest
1943 * x coordinate on the screen (might be a different column).
1944 *
1945 */
1946 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1947 {
1948 INT s = es->selection_start;
1949 INT e = es->selection_end;
1950 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1951 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1952 INT x = SLOWORD(pos);
1953 INT y = SHIWORD(pos);
1954
1955 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1956 if (!extend)
1957 s = e;
1958 EDIT_EM_SetSel(es, s, e, after_wrap);
1959 EDIT_EM_ScrollCaret(es);
1960 }
1961
1962
1963 /*********************************************************************
1964 *
1965 * EDIT_MoveWordBackward
1966 *
1967 */
1968 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1969 {
1970 INT s = es->selection_start;
1971 INT e = es->selection_end;
1972 INT l;
1973 INT ll;
1974 INT li;
1975
1976 l = EDIT_EM_LineFromChar(es, e);
1977 ll = EDIT_EM_LineLength(es, e);
1978 li = EDIT_EM_LineIndex(es, l);
1979 if (e - li == 0) {
1980 if (l) {
1981 li = EDIT_EM_LineIndex(es, l - 1);
1982 e = li + EDIT_EM_LineLength(es, li);
1983 }
1984 } else {
1985 e = li + (INT)EDIT_CallWordBreakProc(es,
1986 li, e - li, ll, WB_LEFT);
1987 }
1988 if (!extend)
1989 s = e;
1990 EDIT_EM_SetSel(es, s, e, FALSE);
1991 EDIT_EM_ScrollCaret(es);
1992 }
1993
1994
1995 /*********************************************************************
1996 *
1997 * EDIT_MoveWordForward
1998 *
1999 */
2000 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2001 {
2002 INT s = es->selection_start;
2003 INT e = es->selection_end;
2004 INT l;
2005 INT ll;
2006 INT li;
2007
2008 l = EDIT_EM_LineFromChar(es, e);
2009 ll = EDIT_EM_LineLength(es, e);
2010 li = EDIT_EM_LineIndex(es, l);
2011 if (e - li == ll) {
2012 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2013 e = EDIT_EM_LineIndex(es, l + 1);
2014 } else {
2015 e = li + EDIT_CallWordBreakProc(es,
2016 li, e - li + 1, ll, WB_RIGHT);
2017 }
2018 if (!extend)
2019 s = e;
2020 EDIT_EM_SetSel(es, s, e, FALSE);
2021 EDIT_EM_ScrollCaret(es);
2022 }
2023
2024
2025 /*********************************************************************
2026 *
2027 * EDIT_PaintLine
2028 *
2029 */
2030 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2031 {
2032 INT s = es->selection_start;
2033 INT e = es->selection_end;
2034 INT li;
2035 INT ll;
2036 INT x;
2037 INT y;
2038 LRESULT pos;
2039
2040 if (es->style & ES_MULTILINE) {
2041 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2042 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2043 return;
2044 } else if (line)
2045 return;
2046
2047 TRACE("line=%d\n", line);
2048
2049 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2050 x = SLOWORD(pos);
2051 y = SHIWORD(pos);
2052 li = EDIT_EM_LineIndex(es, line);
2053 ll = EDIT_EM_LineLength(es, li);
2054 s = min(es->selection_start, es->selection_end);
2055 e = max(es->selection_start, es->selection_end);
2056 s = min(li + ll, max(li, s));
2057 e = min(li + ll, max(li, e));
2058 if (rev && (s != e) &&
2059 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2060 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2061 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2062 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2063 } else
2064 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2065 }
2066
2067
2068 /*********************************************************************
2069 *
2070 * EDIT_PaintText
2071 *
2072 */
2073 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2074 {
2075 COLORREF BkColor;
2076 COLORREF TextColor;
2077 INT ret;
2078 INT li;
2079 INT BkMode;
2080 SIZE size;
2081
2082 if (!count)
2083 return 0;
2084 BkMode = GetBkMode(dc);
2085 BkColor = GetBkColor(dc);
2086 TextColor = GetTextColor(dc);
2087 if (rev) {
2088 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2089 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2090 SetBkMode( dc, OPAQUE);
2091 }
2092 li = EDIT_EM_LineIndex(es, line);
2093 if (es->style & ES_MULTILINE) {
2094 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2095 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2096 } else {
2097 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2098 TextOutW(dc, x, y, text + li + col, count);
2099 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2100 ret = size.cx;
2101 if (es->style & ES_PASSWORD)
2102 HeapFree(GetProcessHeap(), 0, text);
2103 }
2104 if (rev) {
2105 SetBkColor(dc, BkColor);
2106 SetTextColor(dc, TextColor);
2107 SetBkMode( dc, BkMode);
2108 }
2109 return ret;
2110 }
2111
2112
2113 /*********************************************************************
2114 *
2115 * EDIT_SetCaretPos
2116 *
2117 */
2118 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2119 BOOL after_wrap)
2120 {
2121 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2122 SetCaretPos(SLOWORD(res), SHIWORD(res));
2123 }
2124
2125
2126 /*********************************************************************
2127 *
2128 * EDIT_SetRectNP
2129 *
2130 * note: this is not (exactly) the handler called on EM_SETRECTNP
2131 * it is also used to set the rect of a single line control
2132 *
2133 */
2134 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2135 {
2136 CopyRect(&es->format_rect, rc);
2137 if (es->style & WS_BORDER) {
2138 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2139 if(TWEAK_WineLook == WIN31_LOOK)
2140 bw += 2;
2141 es->format_rect.left += bw;
2142 es->format_rect.top += bw;
2143 es->format_rect.right -= bw;
2144 es->format_rect.bottom -= bw;
2145 }
2146 es->format_rect.left += es->left_margin;
2147 es->format_rect.right -= es->right_margin;
2148 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2149 if (es->style & ES_MULTILINE)
2150 {
2151 INT fw, vlc, max_x_offset, max_y_offset;
2152
2153 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2154 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2155
2156 /* correct es->x_offset */
2157 fw = es->format_rect.right - es->format_rect.left;
2158 max_x_offset = es->text_width - fw;
2159 if(max_x_offset < 0) max_x_offset = 0;
2160 if(es->x_offset > max_x_offset)
2161 es->x_offset = max_x_offset;
2162
2163 /* correct es->y_offset */
2164 max_y_offset = es->line_count - vlc;
2165 if(max_y_offset < 0) max_y_offset = 0;
2166 if(es->y_offset > max_y_offset)
2167 es->y_offset = max_y_offset;
2168
2169 /* force scroll info update */
2170 EDIT_UpdateScrollInfo(es);
2171 }
2172 else
2173 /* Windows doesn't care to fix text placement for SL controls */
2174 es->format_rect.bottom = es->format_rect.top + es->line_height;
2175
2176 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2177 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2178 }
2179
2180
2181 /*********************************************************************
2182 *
2183 * EDIT_UnlockBuffer
2184 *
2185 */
2186 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2187 {
2188 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2189
2190 /* Edit window might be already destroyed */
2191 if(!IsWindow(es->hwndSelf))
2192 {
2193 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2194 return;
2195 }
2196
2197 if (!es->lock_count) {
2198 ERR("lock_count == 0 ... please report\n");
2199 return;
2200 }
2201 if (!es->text) {
2202 ERR("es->text == 0 ... please report\n");
2203 return;
2204 }
2205
2206 if (force || (es->lock_count == 1)) {
2207 if (es->hloc32W) {
2208 CHAR *textA = NULL;
2209 BOOL _16bit = FALSE;
2210 UINT countA = 0;
2211 UINT countW = strlenW(es->text) + 1;
2212
2213 if(es->hloc32A)
2214 {
2215 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2216 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2217 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2218 countA = LocalSize(es->hloc32A);
2219 if(countA_new > countA)
2220 {
2221 HLOCAL hloc32A_new;
2222 UINT alloc_size = ROUND_TO_GROW(countA_new);
2223 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2224 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2225 if(hloc32A_new)
2226 {
2227 es->hloc32A = hloc32A_new;
2228 countA = LocalSize(hloc32A_new);
2229 TRACE("Real new size %d bytes\n", countA);
2230 }
2231 else
2232 WARN("FAILED! Will synchronize partially\n");
2233 }
2234 textA = LocalLock(es->hloc32A);
2235 }
2236 else if(es->hloc16)
2237 {
2238 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2239 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2240 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2241 countA = LOCAL_Size(hInstance, es->hloc16);
2242 if(countA_new > countA)
2243 {
2244 HLOCAL16 hloc16_new;
2245 UINT alloc_size = ROUND_TO_GROW(countA_new);
2246 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2247 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2248 if(hloc16_new)
2249 {
2250 es->hloc16 = hloc16_new;
2251 countA = LOCAL_Size(hInstance, hloc16_new);
2252 TRACE("Real new size %d bytes\n", countA);
2253 }
2254 else
2255 WARN("FAILED! Will synchronize partially\n");
2256 }
2257 textA = LOCAL_Lock(hInstance, es->hloc16);
2258 _16bit = TRUE;
2259 }
2260
2261 if(textA)
2262 {
2263 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2264 if(_16bit)
2265 LOCAL_Unlock(hInstance, es->hloc16);
2266 else
2267 LocalUnlock(es->hloc32A);
2268 }
2269
2270 LocalUnlock(es->hloc32W);
2271 es->text = NULL;
2272 }
2273 else {
2274 ERR("no buffer ... please report\n");
2275 return;
2276 }
2277 }
2278 es->lock_count--;
2279 }
2280
2281
2282 /*********************************************************************
2283 *
2284 * EDIT_UpdateScrollInfo
2285 *
2286 */
2287 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2288 {
2289 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2290 {
2291 SCROLLINFO si;
2292 si.cbSize = sizeof(SCROLLINFO);
2293 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2294 si.nMin = 0;
2295 si.nMax = es->line_count - 1;
2296 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2297 si.nPos = es->y_offset;
2298 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2299 si.nMin, si.nMax, si.nPage, si.nPos);
2300 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2301 }
2302
2303 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2304 {
2305 SCROLLINFO si;
2306 si.cbSize = sizeof(SCROLLINFO);
2307 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2308 si.nMin = 0;
2309 si.nMax = es->text_width - 1;
2310 si.nPage = es->format_rect.right - es->format_rect.left;
2311 si.nPos = es->x_offset;
2312 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2313 si.nMin, si.nMax, si.nPage, si.nPos);
2314 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2315 }
2316 }
2317
2318 /*********************************************************************
2319 *
2320 * EDIT_WordBreakProc
2321 *
2322 * Find the beginning of words.
2323 * Note: unlike the specs for a WordBreakProc, this function only
2324 * allows to be called without linebreaks between s[0] upto
2325 * s[count - 1]. Remember it is only called
2326 * internally, so we can decide this for ourselves.
2327 *
2328 */
2329 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2330 {
2331 INT ret = 0;
2332
2333 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2334
2335 if(!s) return 0;
2336
2337 switch (action) {
2338 case WB_LEFT:
2339 if (!count)
2340 break;
2341 if (index)
2342 index--;
2343 if (s[index] == ' ') {
2344 while (index && (s[index] == ' '))
2345 index--;
2346 if (index) {
2347 while (index && (s[index] != ' '))
2348 index--;
2349 if (s[index] == ' ')
2350 index++;
2351 }
2352 } else {
2353 while (index && (s[index] != ' '))
2354 index--;
2355 if (s[index] == ' ')
2356 index++;
2357 }
2358 ret = index;
2359 break;
2360 case WB_RIGHT:
2361 if (!count)
2362 break;
2363 if (index)
2364 index--;
2365 if (s[index] == ' ')
2366 while ((index < count) && (s[index] == ' ')) index++;
2367 else {
2368 while (s[index] && (s[index] != ' ') && (index < count))
2369 index++;
2370 while ((s[index] == ' ') && (index < count)) index++;
2371 }
2372 ret = index;
2373 break;
2374 case WB_ISDELIMITER:
2375 ret = (s[index] == ' ');
2376 break;
2377 default:
2378 ERR("unknown action code, please report !\n");
2379 break;
2380 }
2381 return ret;
2382 }
2383
2384
2385 /*********************************************************************
2386 *
2387 * EM_CHARFROMPOS
2388 *
2389 * returns line number (not index) in high-order word of result.
2390 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2391 * to Richedit, not to the edit control. Original documentation is valid.
2392 * FIXME: do the specs mean to return -1 if outside client area or
2393 * if outside formatting rectangle ???
2394 *
2395 */
2396 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2397 {
2398 POINT pt;
2399 RECT rc;
2400 INT index;
2401
2402 pt.x = x;
2403 pt.y = y;
2404 GetClientRect(es->hwndSelf, &rc);
2405 if (!PtInRect(&rc, pt))
2406 return -1;
2407
2408 index = EDIT_CharFromPos(es, x, y, NULL);
2409 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2410 }
2411
2412
2413 /*********************************************************************
2414 *
2415 * EM_FMTLINES
2416 *
2417 * Enable or disable soft breaks.
2418 *
2419 * This means: insert or remove the soft linebreak character (\r\r\n).
2420 * Take care to check if the text still fits the buffer after insertion.
2421 * If not, notify with EN_ERRSPACE.
2422 *
2423 */
2424 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2425 {
2426 es->flags &= ~EF_USE_SOFTBRK;
2427 if (add_eol) {
2428 es->flags |= EF_USE_SOFTBRK;
2429 FIXME("soft break enabled, not implemented\n");
2430 }
2431 return add_eol;
2432 }
2433
2434
2435 /*********************************************************************
2436 *
2437 * EM_GETHANDLE
2438 *
2439 * Hopefully this won't fire back at us.
2440 * We always start with a fixed buffer in the local heap.
2441 * Despite of the documentation says that the local heap is used
2442 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2443 * buffer on the local heap.
2444 *
2445 */
2446 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2447 {
2448 HLOCAL hLocal;
2449
2450 if (!(es->style & ES_MULTILINE))
2451 return 0;
2452
2453 if(es->is_unicode)
2454 hLocal = es->hloc32W;
2455 else
2456 {
2457 if(!es->hloc32A)
2458 {
2459 CHAR *textA;
2460 UINT countA, alloc_size;
2461 TRACE("Allocating 32-bit ANSI alias buffer\n");
2462 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2463 alloc_size = ROUND_TO_GROW(countA);
2464 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2465 {
2466 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2467 return 0;
2468 }
2469 textA = LocalLock(es->hloc32A);
2470 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2471 LocalUnlock(es->hloc32A);
2472 }
2473 hLocal = es->hloc32A;
2474 }
2475
2476 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2477 return hLocal;
2478 }
2479
2480
2481 /*********************************************************************
2482 *
2483 * EM_GETHANDLE16
2484 *
2485 * Hopefully this won't fire back at us.
2486 * We always start with a buffer in 32 bit linear memory.
2487 * However, with this message a 16 bit application requests
2488 * a handle of 16 bit local heap memory, where it expects to find
2489 * the text.
2490 * It's a pitty that from this moment on we have to use this
2491 * local heap, because applications may rely on the handle
2492 * in the future.
2493 *
2494 * In this function we'll try to switch to local heap.
2495 */
2496 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2497 {
2498 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2499 CHAR *textA;
2500 UINT countA, alloc_size;
2501
2502 if (!(es->style & ES_MULTILINE))
2503 return 0;
2504
2505 if (es->hloc16)
2506 return es->hloc16;
2507
2508 if (!LOCAL_HeapSize(hInstance)) {
2509 if (!LocalInit16(hInstance, 0,
2510 GlobalSize16(hInstance))) {
2511 ERR("could not initialize local heap\n");
2512 return 0;
2513 }
2514 TRACE("local heap initialized\n");
2515 }
2516
2517 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2518 alloc_size = ROUND_TO_GROW(countA);
2519
2520 TRACE("Allocating 16-bit ANSI alias buffer\n");
2521 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2522 ERR("could not allocate new 16 bit buffer\n");
2523 return 0;
2524 }
2525
2526 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2527 ERR("could not lock new 16 bit buffer\n");
2528 LOCAL_Free(hInstance, es->hloc16);
2529 es->hloc16 = 0;
2530 return 0;
2531 }
2532
2533 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2534 LOCAL_Unlock(hInstance, es->hloc16);
2535
2536 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2537 return es->hloc16;
2538 }
2539
2540
2541 /*********************************************************************
2542 *
2543 * EM_GETLINE
2544 *
2545 */
2546 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2547 {
2548 LPWSTR src;
2549 INT line_len, dst_len;
2550 INT i;
2551
2552 if (es->style & ES_MULTILINE) {
2553 if (line >= es->line_count)
2554 return 0;
2555 } else
2556 line = 0;
2557 i = EDIT_EM_LineIndex(es, line);
2558 src = es->text + i;
2559 line_len = EDIT_EM_LineLength(es, i);
2560 dst_len = *(WORD *)lParam;
2561 if(unicode)
2562 {
2563 LPWSTR dst = (LPWSTR)lParam;
2564 if(dst_len <= line_len)
2565 {
2566 memcpy(dst, src, dst_len * sizeof(WCHAR));
2567 return dst_len;
2568 }
2569 else /* Append 0 if enough space */
2570 {
2571 memcpy(dst, src, line_len * sizeof(WCHAR));
2572 dst[line_len] = 0;
2573 return line_len;
2574 }
2575 }
2576 else
2577 {
2578 LPSTR dst = (LPSTR)lParam;
2579 INT ret;
2580 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2581 if(!ret) /* Insufficient buffer size */
2582 return dst_len;
2583 if(ret < dst_len) /* Append 0 if enough space */
2584 dst[ret] = 0;
2585 return ret;
2586 }
2587 }
2588
2589
2590 /*********************************************************************
2591 *
2592 * EM_GETSEL
2593 *
2594 */
2595 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2596 {
2597 UINT s = es->selection_start;
2598 UINT e = es->selection_end;
2599
2600 ORDER_UINT(s, e);
2601 if (start)
2602 *start = s;
2603 if (end)
2604 *end = e;
2605 return MAKELONG(s, e);
2606 }
2607
2608
2609 /*********************************************************************
2610 *
2611 * EM_GETTHUMB
2612 *
2613 * FIXME: is this right ? (or should it be only VSCROLL)
2614 * (and maybe only for edit controls that really have their
2615 * own scrollbars) (and maybe only for multiline controls ?)
2616 * All in all: very poorly documented
2617 *
2618 */
2619 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2620 {
2621 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2622 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2623 }
2624
2625
2626 /*********************************************************************
2627 *
2628 * EM_LINEFROMCHAR
2629 *
2630 */
2631 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2632 {
2633 INT line;
2634 LINEDEF *line_def;
2635
2636 if (!(es->style & ES_MULTILINE))
2637 return 0;
2638 if (index > (INT)strlenW(es->text))
2639 return es->line_count - 1;
2640 if (index == -1)
2641 index = min(es->selection_start, es->selection_end);
2642
2643 line = 0;
2644 line_def = es->first_line_def;
2645 index -= line_def->length;
2646 while ((index >= 0) && line_def->next) {
2647 line++;
2648 line_def = line_def->next;
2649 index -= line_def->length;
2650 }
2651 return line;
2652 }
2653
2654
2655 /*********************************************************************
2656 *
2657 * EM_LINEINDEX
2658 *
2659 */
2660 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2661 {
2662 INT line_index;
2663 LINEDEF *line_def;
2664
2665 if (!(es->style & ES_MULTILINE))
2666 return 0;
2667 if (line >= es->line_count)
2668 return -1;
2669
2670 line_index = 0;
2671 line_def = es->first_line_def;
2672 if (line == -1) {
2673 INT index = es->selection_end - line_def->length;
2674 while ((index >= 0) && line_def->next) {
2675 line_index += line_def->length;
2676 line_def = line_def->next;
2677 index -= line_def->length;
2678 }
2679 } else {
2680 while (line > 0) {
2681 line_index += line_def->length;
2682 line_def = line_def->next;
2683 line--;
2684 }
2685 }
2686 return line_index;
2687 }
2688
2689
2690 /*********************************************************************
2691 *
2692 * EM_LINELENGTH
2693 *
2694 */
2695 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2696 {
2697 LINEDEF *line_def;
2698
2699 if (!(es->style & ES_MULTILINE))
2700 return strlenW(es->text);
2701
2702 if (index == -1) {
2703 /* get the number of remaining non-selected chars of selected lines */
2704 INT32 l; /* line number */
2705 INT32 li; /* index of first char in line */
2706 INT32 count;
2707 l = EDIT_EM_LineFromChar(es, es->selection_start);
2708 /* # chars before start of selection area */
2709 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2710 l = EDIT_EM_LineFromChar(es, es->selection_end);
2711 /* # chars after end of selection */
2712 li = EDIT_EM_LineIndex(es, l);
2713 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2714 return count;
2715 }
2716 line_def = es->first_line_def;
2717 index -= line_def->length;
2718 while ((index >= 0) && line_def->next) {
2719 line_def = line_def->next;
2720 index -= line_def->length;
2721 }
2722 return line_def->net_length;
2723 }
2724
2725
2726 /*********************************************************************
2727 *
2728 * EM_LINESCROLL
2729 *
2730 * NOTE: dx is in average character widths, dy - in lines;
2731 *
2732 */
2733 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2734 {
2735 if (!(es->style & ES_MULTILINE))
2736 return FALSE;
2737
2738 dx *= es->char_width;
2739 return EDIT_EM_LineScroll_internal(es, dx, dy);
2740 }
2741
2742 /*********************************************************************
2743 *
2744 * EDIT_EM_LineScroll_internal
2745 *
2746 * Version of EDIT_EM_LineScroll for internal use.
2747 * It doesn't refuse if ES_MULTILINE is set and assumes that
2748 * dx is in pixels, dy - in lines.
2749 *
2750 */
2751 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2752 {
2753 INT nyoff;
2754 INT x_offset_in_pixels;
2755
2756 if (es->style & ES_MULTILINE)
2757 {
2758 x_offset_in_pixels = es->x_offset;
2759 }
2760 else
2761 {
2762 dy = 0;
2763 x_offset_in_pixels = SLOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2764 }
2765
2766 if (-dx > x_offset_in_pixels)
2767 dx = -x_offset_in_pixels;
2768 if (dx > es->text_width - x_offset_in_pixels)
2769 dx = es->text_width - x_offset_in_pixels;
2770 nyoff = max(0, es->y_offset + dy);
2771 if (nyoff >= es->line_count)
2772 nyoff = es->line_count - 1;
2773 dy = (es->y_offset - nyoff) * es->line_height;
2774 if (dx || dy) {
2775 RECT rc1;
2776 RECT rc;
2777
2778 es->y_offset = nyoff;
2779 if(es->style & ES_MULTILINE)
2780 es->x_offset += dx;
2781 else
2782 es->x_offset += dx / es->char_width;
2783
2784 GetClientRect(es->hwndSelf, &rc1);
2785 IntersectRect(&rc, &rc1, &es->format_rect);
2786 ScrollWindowEx(es->hwndSelf, -dx, dy,
2787 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2788 /* force scroll info update */
2789 EDIT_UpdateScrollInfo(es);
2790 }
2791 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2792 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2793 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2794 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2795 return TRUE;
2796 }
2797
2798
2799 /*********************************************************************
2800 *
2801 * EM_POSFROMCHAR
2802 *
2803 */
2804 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2805 {
2806 INT len = strlenW(es->text);
2807 INT l;
2808 INT li;
2809 INT x;
2810 INT y = 0;
2811 HDC dc;
2812 HFONT old_font = 0;
2813 SIZE size;
2814
2815 index = min(index, len);
2816 dc = GetDC(es->hwndSelf);
2817 if (es->font)
2818 old_font = SelectObject(dc, es->font);
2819 if (es->style & ES_MULTILINE) {
2820 l = EDIT_EM_LineFromChar(es, index);
2821 y = (l - es->y_offset) * es->line_height;
2822 li = EDIT_EM_LineIndex(es, l);
2823 if (after_wrap && (li == index) && l) {
2824 INT l2 = l - 1;
2825 LINEDEF *line_def = es->first_line_def;
2826 while (l2) {
2827 line_def = line_def->next;
2828 l2--;
2829 }
2830 if (line_def->ending == END_WRAP) {
2831 l--;
2832 y -= es->line_height;
2833 li = EDIT_EM_LineIndex(es, l);
2834 }
2835 }
2836 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2837 es->tabs_count, es->tabs)) - es->x_offset;
2838 } else {
2839 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2840 if (index < es->x_offset) {
2841 GetTextExtentPoint32W(dc, text + index,
2842 es->x_offset - index, &size);
2843 x = -size.cx;
2844 } else {
2845 GetTextExtentPoint32W(dc, text + es->x_offset,
2846 index - es->x_offset, &size);
2847 x = size.cx;
2848 }
2849 y = 0;
2850 if (es->style & ES_PASSWORD)
2851 HeapFree(GetProcessHeap(), 0, text);
2852 }
2853 x += es->format_rect.left;
2854 y += es->format_rect.top;
2855 if (es->font)
2856 SelectObject(dc, old_font);
2857 ReleaseDC(es->hwndSelf, dc);
2858 return MAKELONG((INT16)x, (INT16)y);
2859 }
2860
2861
2862 /*********************************************************************
2863 *
2864 * EM_REPLACESEL
2865 *
2866 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2867 *
2868 */
2869 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2870 {
2871 UINT strl = strlenW(lpsz_replace);
2872 UINT tl = strlenW(es->text);
2873 UINT utl;
2874 UINT s;
2875 UINT e;
2876 UINT i;
2877 LPWSTR p;
2878 HRGN hrgn = 0;
2879
2880 TRACE("%s, can_undo %d, send_update %d\n",
2881 debugstr_w(lpsz_replace), can_undo, send_update);
2882
2883 s = es->selection_start;
2884 e = es->selection_end;
2885
2886 if ((s == e) && !strl)
2887 return;
2888
2889 ORDER_UINT(s, e);
2890
2891 if (!EDIT_MakeFit(es, tl - (e - s) + strl, honor_limit))
2892 return;
2893
2894 if (e != s) {
2895 /* there is something to be deleted */
2896 TRACE("deleting stuff.\n");
2897 if (can_undo) {
2898 utl = strlenW(es->undo_text);
2899 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2900 /* undo-buffer is extended to the right */
2901 EDIT_MakeUndoFit(es, utl + e - s);
2902 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
2903 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2904 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2905 /* undo-buffer is extended to the left */
2906 EDIT_MakeUndoFit(es, utl + e - s);
2907 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2908 p[e - s] = p[0];
2909 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2910 p[i] = (es->text + s)[i];
2911 es->undo_position = s;
2912 } else {
2913 /* new undo-buffer */
2914 EDIT_MakeUndoFit(es, e - s);
2915 strncpyW(es->undo_text, es->text + s, e - s + 1);
2916 es->undo_text[e - s] = 0; /* ensure 0 termination */
2917 es->undo_position = s;
2918 }
2919 /* any deletion makes the old insertion-undo invalid */
2920 es->undo_insert_count = 0;
2921 } else
2922 EDIT_EM_EmptyUndoBuffer(es);
2923
2924 /* now delete */
2925 strcpyW(es->text + s, es->text + e);
2926 }
2927 if (strl) {
2928 /* there is an insertion */
2929 if (can_undo) {
2930 if ((s == es->undo_position) ||
2931 ((es->undo_insert_count) &&
2932 (s == es->undo_position + es->undo_insert_count)))
2933 /*
2934 * insertion is new and at delete position or
2935 * an extension to either left or right
2936 */
2937 es->undo_insert_count += strl;
2938 else {
2939 /* new insertion undo */
2940 es->undo_position = s;
2941 es->undo_insert_count = strl;
2942 /* new insertion makes old delete-buffer invalid */
2943 *es->undo_text = '\0';
2944 }
2945 } else
2946 EDIT_EM_EmptyUndoBuffer(es);
2947
2948 /* now insert */
2949 tl = strlenW(es->text);
2950 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));
2951 for (p = es->text + tl ; p >= es->text + s ; p--)
2952 p[strl] = p[0];
2953 for (i = 0 , p = es->text + s ; i < strl ; i++)
2954 p[i] = lpsz_replace[i];
2955 if(es->style & ES_UPPERCASE)
2956 CharUpperBuffW(p, strl);
2957 else if(es->style & ES_LOWERCASE)
2958 CharLowerBuffW(p, strl);
2959 s += strl;
2960 }
2961 if (es->style & ES_MULTILINE)
2962 {
2963 INT s = min(es->selection_start, es->selection_end);
2964
2965 hrgn = CreateRectRgn(0, 0, 0, 0);
2966 EDIT_BuildLineDefs_ML(es, s, s + strl,
2967 strl - abs(es->selection_end - es->selection_start), hrgn);
2968 }
2969 else
2970 EDIT_CalcLineWidth_SL(es);
2971
2972 EDIT_EM_SetSel(es, s, s, FALSE);
2973 es->flags |= EF_MODIFIED;
2974 if (send_update) es->flags |= EF_UPDATE;
2975 EDIT_EM_ScrollCaret(es);
2976
2977 /* force scroll info update */
2978 EDIT_UpdateScrollInfo(es);
2979
2980 if (hrgn)
2981 {
2982 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2983 DeleteObject(hrgn);
2984 }
2985 else
2986 EDIT_UpdateText(es, NULL, TRUE);
2987
2988 if(es->flags & EF_UPDATE)
2989 {
2990 es->flags &= ~EF_UPDATE;
2991 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
2992 }
2993 }
2994
2995
2996 /*********************************************************************
2997 *
2998 * EM_SCROLL
2999 *
3000 */
3001 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3002 {
3003 INT dy;
3004
3005 if (!(es->style & ES_MULTILINE))
3006 return (LRESULT)FALSE;
3007
3008 dy = 0;
3009
3010 switch (action) {
3011 case SB_LINEUP:
3012 if (es->y_offset)
3013 dy = -1;
3014 break;
3015 case SB_LINEDOWN:
3016 if (es->y_offset < es->line_count - 1)
3017 dy = 1;
3018 break;
3019 case SB_PAGEUP:
3020 if (es->y_offset)
3021 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3022 break;
3023 case SB_PAGEDOWN:
3024 if (es->y_offset < es->line_count - 1)
3025 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3026 break;
3027 default:
3028 return (LRESULT)FALSE;
3029 }
3030 if (dy) {
3031 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3032 /* check if we are going to move too far */
3033 if(es->y_offset + dy > es->line_count - vlc)
3034 dy = es->line_count - vlc - es->y_offset;
3035
3036 /* Notification is done in EDIT_EM_LineScroll */
3037 if(dy)
3038 EDIT_EM_LineScroll(es, 0, dy);
3039 }
3040 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3041 }
3042
3043
3044 /*********************************************************************
3045 *
3046 * EM_SCROLLCARET
3047 *
3048 */
3049 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3050 {
3051 if (es->style & ES_MULTILINE) {
3052 INT l;
3053 INT li;
3054 INT vlc;
3055 INT ww;
3056 INT cw = es->char_width;
3057 INT x;
3058 INT dy = 0;
3059 INT dx = 0;
3060
3061 l = EDIT_EM_LineFromChar(es, es->selection_end);
3062 li = EDIT_EM_LineIndex(es, l);
3063 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3064 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3065 if (l >= es->y_offset + vlc)
3066 dy = l - vlc + 1 - es->y_offset;
3067 if (l < es->y_offset)
3068 dy = l - es->y_offset;
3069 ww = es->format_rect.right - es->format_rect.left;
3070 if (x < es->format_rect.left)
3071 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3072 if (x > es->format_rect.right)
3073 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3074 if (dy || dx)
3075 {
3076 /* check if we are going to move too far */
3077 if(es->x_offset + dx + ww > es->text_width)
3078 dx = es->text_width - ww - es->x_offset;
3079 if(dx || dy)
3080 EDIT_EM_LineScroll_internal(es, dx, dy);
3081 }
3082 } else {
3083 INT x;
3084 INT goal;
3085 INT format_width;
3086
3087 if (!(es->style & ES_AUTOHSCROLL))
3088 return;
3089
3090 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3091 format_width = es->format_rect.right - es->format_rect.left;
3092 if (x < es->format_rect.left) {
3093 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3094 do {
3095 es->x_offset--;
3096 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3097 } while ((x < goal) && es->x_offset);
3098 /* FIXME: use ScrollWindow() somehow to improve performance */
3099 EDIT_UpdateText(es, NULL, TRUE);
3100 } else if (x > es->format_rect.right) {
3101 INT x_last;
3102 INT len = strlenW(es->text);
3103 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3104 do {
3105 es->x_offset++;
3106 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3107 x_last = SLOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3108 } while ((x > goal) && (x_last > es->format_rect.right));
3109 /* FIXME: use ScrollWindow() somehow to improve performance */
3110 EDIT_UpdateText(es, NULL, TRUE);
3111 }
3112 }
3113
3114 if(es->flags & EF_FOCUSED)
3115 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3116 }
3117
3118
3119 /*********************************************************************
3120 *
3121 * EM_SETHANDLE
3122 *
3123 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3124 *
3125 */
3126 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3127 {
3128 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3129
3130 if (!(es->style & ES_MULTILINE))
3131 return;
3132
3133 if (!hloc) {
3134 WARN("called with NULL handle\n");
3135 return;
3136 }
3137
3138 EDIT_UnlockBuffer(es, TRUE);
3139
3140 if(es->hloc16)
3141 {
3142 LOCAL_Free(hInstance, es->hloc16);
3143 es->hloc16 = (HLOCAL16)NULL;
3144 }
3145
3146 if(es->is_unicode)
3147 {
3148 if(es->hloc32A)
3149 {
3150 LocalFree(es->hloc32A);
3151 es->hloc32A = NULL;
3152 }
3153 es->hloc32W = hloc;
3154 }
3155 else
3156 {
3157 INT countW, countA;
3158 HLOCAL hloc32W_new;
3159 WCHAR *textW;
3160 CHAR *textA;
3161
3162 countA = LocalSize(hloc);
3163 textA = LocalLock(hloc);
3164 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3165 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3166 {
3167 ERR("Could not allocate new unicode buffer\n");
3168 return;
3169 }
3170 textW = LocalLock(hloc32W_new);
3171 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3172 LocalUnlock(hloc32W_new);
3173 LocalUnlock(hloc);
3174
3175 if(es->hloc32W)
3176 LocalFree(es->hloc32W);
3177
3178 es->hloc32W = hloc32W_new;
3179 es->hloc32A = hloc;
3180 }
3181
3182 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3183
3184 EDIT_LockBuffer(es);
3185
3186 es->x_offset = es->y_offset = 0;
3187 es->selection_start = es->selection_end = 0;
3188 EDIT_EM_EmptyUndoBuffer(es);
3189 es->flags &= ~EF_MODIFIED;
3190 es->flags &= ~EF_UPDATE;
3191 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3192 EDIT_UpdateText(es, NULL, TRUE);
3193 EDIT_EM_ScrollCaret(es);
3194 /* force scroll info update */
3195 EDIT_UpdateScrollInfo(es);
3196 }
3197
3198
3199 /*********************************************************************
3200 *
3201 * EM_SETHANDLE16
3202 *
3203 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3204 *
3205 */
3206 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3207 {
3208 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3209 INT countW, countA;
3210 HLOCAL hloc32W_new;
3211 WCHAR *textW;
3212 CHAR *textA;
3213
3214 if (!(es->style & ES_MULTILINE))
3215 return;
3216
3217 if (!hloc) {
3218 WARN("called with NULL handle\n");
3219 return;
3220 }
3221
3222 EDIT_UnlockBuffer(es, TRUE);
3223
3224 if(es->hloc32A)
3225 {
3226 LocalFree(es->hloc32A);
3227 es->hloc32A = NULL;
3228 }
3229
3230 countA = LOCAL_Size(hInstance, hloc);
3231 textA = LOCAL_Lock(hInstance, hloc);
3232 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3233 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3234 {
3235 ERR("Could not allocate new unicode buffer\n");
3236 return;
3237 }
3238 textW = LocalLock(hloc32W_new);
3239 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3240 LocalUnlock(hloc32W_new);
3241 LOCAL_Unlock(hInstance, hloc);
3242
3243 if(es->hloc32W)
3244 LocalFree(es->hloc32W);
3245
3246 es->hloc32W = hloc32W_new;
3247 es->hloc16 = hloc;
3248
3249 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3250
3251 EDIT_LockBuffer(es);
3252
3253 es->x_offset = es->y_offset = 0;
3254 es->selection_start = es->selection_end = 0;
3255 EDIT_EM_EmptyUndoBuffer(es);
3256 es->flags &= ~EF_MODIFIED;
3257 es->flags &= ~EF_UPDATE;
3258 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3259 EDIT_UpdateText(es, NULL, TRUE);
3260 EDIT_EM_ScrollCaret(es);
3261 /* force scroll info update */
3262 EDIT_UpdateScrollInfo(es);
3263 }
3264
3265
3266 /*********************************************************************
3267 *
3268 * EM_SETLIMITTEXT
3269 *
3270 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3271 * However, the windows version is not complied to yet in all of edit.c
3272 *
3273 * Additionally as the wrapper for RichEdit controls we need larger buffers
3274 * at present -1 will represent nolimit
3275 */
3276 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3277 {
3278 if (limit == 0xFFFFFFFF)
3279 es->buffer_limit = -1;
3280 else if (es->style & ES_MULTILINE) {
3281 if (limit)
3282 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3283 else
3284 es->buffer_limit = BUFLIMIT_MULTI;
3285 } else {
3286 if (limit)
3287 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3288 else
3289 es->buffer_limit = BUFLIMIT_SINGLE;
3290 }
3291 }
3292
3293
3294 /*********************************************************************
3295 *
3296 * EM_SETMARGINS
3297 *
3298 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3299 * action wParam despite what the docs say. EC_USEFONTINFO means one third
3300 * of the char's width, according to the new docs.
3301 *
3302 */
3303 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3304 INT left, INT right)
3305 {
3306 if (action & EC_LEFTMARGIN) {
3307 if (left != EC_USEFONTINFO)
3308 es->left_margin = left;
3309 else
3310 es->left_margin = es->char_width / 3;
3311 }
3312
3313 if (action & EC_RIGHTMARGIN) {
3314 if (right != EC_USEFONTINFO)
3315 es->right_margin = right;
3316 else
3317 es->right_margin = es->char_width / 3;
3318 }
3319 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3320 }
3321
3322
3323 /*********************************************************************
3324 *
3325 * EM_SETPASSWORDCHAR
3326 *
3327 */
3328 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3329 {
3330 LONG style;
3331
3332 if (es->style & ES_MULTILINE)
3333 return;
3334
3335 if (es->password_char == c)
3336 return;
3337
3338 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3339 es->password_char = c;
3340 if (c) {
3341 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3342 es->style |= ES_PASSWORD;
3343 } else {
3344 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3345 es->style &= ~ES_PASSWORD;
3346 }
3347 EDIT_UpdateText(es, NULL, TRUE);
3348 }
3349
3350
3351 /*********************************************************************
3352 *
3353 * EDIT_EM_SetSel
3354 *
3355 * note: unlike the specs say: the order of start and end
3356 * _is_ preserved in Windows. (i.e. start can be > end)
3357 * In other words: this handler is OK
3358 *
3359 */
3360 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3361 {
3362 UINT old_start = es->selection_start;
3363 UINT old_end = es->selection_end;
3364 UINT len = strlenW(es->text);
3365
3366 if (start == (UINT)-1) {
3367 start = es->selection_end;
3368 end = es->selection_end;
3369 } else {
3370 start = min(start, len);
3371 end = min(end, len);
3372 }
3373 es->selection_start = start;
3374 es->selection_end = end;
3375 if (after_wrap)
3376 es->flags |= EF_AFTER_WRAP;
3377 else
3378 es->flags &= ~EF_AFTER_WRAP;
3379 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3380 ORDER_UINT(start, end);
3381 ORDER_UINT(end, old_end);
3382 ORDER_UINT(start, old_start);
3383 ORDER_UINT(old_start, old_end);
3384 if (end != old_start)
3385 {
3386 /*
3387 * One can also do
3388 * ORDER_UINT32(end, old_start);
3389 * EDIT_InvalidateText(es, start, end);
3390 * EDIT_InvalidateText(es, old_start, old_end);
3391 * in place of the following if statement.
3392 */
3393 if (old_start > end )
3394 {
3395 EDIT_InvalidateText(es, start, end);
3396 EDIT_InvalidateText(es, old_start, old_end);
3397 }
3398 else
3399 {
3400 EDIT_InvalidateText(es, start, old_start);
3401 EDIT_InvalidateText(es, end, old_end);
3402 }
3403 }
3404 else EDIT_InvalidateText(es, start, old_end);
3405 }
3406
3407
3408 /*********************************************************************
3409 *
3410 * EM_SETTABSTOPS
3411 *
3412 */
3413 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3414 {
3415 if (!(es->style & ES_MULTILINE))
3416 return FALSE;
3417 if (es->tabs)
3418 HeapFree(GetProcessHeap(), 0, es->tabs);
3419 es->tabs_count = count;
3420 if (!count)
3421 es->tabs = NULL;
3422 else {
3423 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3424 memcpy(es->tabs, tabs, count * sizeof(INT));
3425 }
3426 return TRUE;
3427 }
3428
3429
3430 /*********************************************************************
3431 *
3432 * EM_SETTABSTOPS16
3433 *
3434 */
3435 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3436 {
3437 if (!(es->style & ES_MULTILINE))
3438 return FALSE;
3439 if (es->tabs)
3440 HeapFree(GetProcessHeap(), 0, es->tabs);
3441 es->tabs_count = count;
3442 if (!count)
3443 es->tabs = NULL;
3444 else {
3445 INT i;
3446 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3447 for (i = 0 ; i < count ; i++)
3448 es->tabs[i] = *tabs++;
3449 }
3450 return TRUE;
3451 }
3452
3453
3454 /*********************************************************************
3455 *
3456 * EM_SETWORDBREAKPROC
3457 *
3458 */
3459 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam)
3460 {
3461 if (es->word_break_proc == (void *)lParam)
3462 return;
3463
3464 es->word_break_proc = (void *)lParam;
3465 es->word_break_proc16 = NULL;
3466
3467 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3468 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3469 EDIT_UpdateText(es, NULL, TRUE);
3470 }
3471 }
3472
3473
3474 /*********************************************************************
3475 *
3476 * EM_SETWORDBREAKPROC16
3477 *
3478 */
3479 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3480 {
3481 if (es->word_break_proc16 == wbp)
3482 return;
3483
3484 es->word_break_proc = NULL;
3485 es->word_break_proc16 = wbp;
3486 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3487 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3488 EDIT_UpdateText(es, NULL, TRUE);
3489 }
3490 }
3491
3492
3493 /*********************************************************************
3494 *
3495 * EM_UNDO / WM_UNDO
3496 *
3497 */
3498 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3499 {
3500 INT ulength;
3501 LPWSTR utext;
3502
3503 /* Protect read-only edit control from modification */
3504 if(es->style & ES_READONLY)
3505 return FALSE;
3506
3507 ulength = strlenW(es->undo_text);
3508 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3509
3510 strcpyW(utext, es->undo_text);
3511
3512 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3513 es->undo_insert_count, debugstr_w(utext));
3514
3515 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3516 EDIT_EM_EmptyUndoBuffer(es);
3517 EDIT_EM_ReplaceSel(es, TRUE, utext, FALSE, TRUE);
3518 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3519 /* send the notification after the selection start and end are set */
3520 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3521 EDIT_EM_ScrollCaret(es);
3522 HeapFree(GetProcessHeap(), 0, utext);
3523
3524 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3525 es->undo_insert_count, debugstr_w(es->undo_text));
3526 return TRUE;
3527 }
3528
3529
3530 /*********************************************************************
3531 *
3532 * WM_CHAR
3533 *
3534 */
3535 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3536 {
3537 BOOL control;
3538
3539 /* Protect read-only edit control from modification */
3540 if(es->style & ES_READONLY)
3541 return;
3542
3543 control = GetKeyState(VK_CONTROL) & 0x8000;
3544
3545 switch (c) {
3546 case '\r':
3547 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3548 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3549 break;
3550 case '\n':
3551 if (es->style & ES_MULTILINE) {
3552 if (es->style & ES_READONLY) {
3553 EDIT_MoveHome(es, FALSE);
3554 EDIT_MoveDown_ML(es, FALSE);
3555 } else {
3556 static const WCHAR cr_lfW[] = {'\r','\n',0};
3557 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3558 }
3559 }
3560 break;
3561 case '\t':
3562 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3563 {
3564 static const WCHAR tabW[] = {'\t',0};
3565 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3566 }
3567 break;
3568 case VK_BACK:
3569 if (!(es->style & ES_READONLY) && !control) {
3570 if (es->selection_start != es->selection_end)
3571 EDIT_WM_Clear(es);
3572 else {
3573 /* delete character left of caret */
3574 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3575 EDIT_MoveBackward(es, TRUE);
3576 EDIT_WM_Clear(es);
3577 }
3578 }
3579 break;
3580 case 0x03: /* ^C */
3581 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3582 break;
3583 case 0x16: /* ^V */
3584 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3585 break;
3586 case 0x18: /* ^X */
3587 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3588 break;
3589
3590 default:
3591 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3592 WCHAR str[2];
3593 str[0] = c;
3594 str[1] = '\0';
3595 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3596 }
3597 break;
3598 }
3599 }
3600
3601
3602 /*********************************************************************
3603 *
3604 * WM_COMMAND
3605 *
3606 */
3607 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3608 {
3609 if (code || control)
3610 return;
3611
3612 switch (id) {
3613 case EM_UNDO:
3614 EDIT_EM_Undo(es);
3615 break;
3616 case WM_CUT:
3617 EDIT_WM_Cut(es);
3618 break;
3619 case WM_COPY:
3620 EDIT_WM_Copy(es);
3621 break;
3622 case WM_PASTE:
3623 EDIT_WM_Paste(es);
3624 break;
3625 case WM_CLEAR:
3626 EDIT_WM_Clear(es);
3627 break;
3628 case EM_SETSEL:
3629 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3630 EDIT_EM_ScrollCaret(es);
3631 break;
3632 default:
3633 ERR("unknown menu item, please report\n");
3634 break;
3635 }
3636 }
3637
3638
3639 /*********************************************************************
3640 *
3641 * WM_CONTEXTMENU
3642 *
3643 * Note: the resource files resource/sysres_??.rc cannot define a
3644 * single popup menu. Hence we use a (dummy) menubar
3645 * containing the single popup menu as its first item.
3646 *
3647 * FIXME: the message identifiers have been chosen arbitrarily,
3648 * hence we use MF_BYPOSITION.
3649 * We might as well use the "real" values (anybody knows ?)
3650 * The menu definition is in resources/sysres_??.rc.
3651 * Once these are OK, we better use MF_BYCOMMAND here
3652 * (as we do in EDIT_WM_Command()).
3653 *
3654 */
3655 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3656 {
3657 HMENU menu = LoadMenuA(GetModuleHandleA("USER32"), "EDITMENU");
3658 HMENU popup = GetSubMenu(menu, 0);
3659 UINT start = es->selection_start;
3660 UINT end = es->selection_end;
3661
3662 ORDER_UINT(start, end);
3663
3664 /* undo */
3665 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3666 /* cut */
3667 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3668 /* copy */
3669 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3670 /* paste */
3671 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3672 /* delete */
3673 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3674 /* select all */
3675 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3676
3677 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3678 DestroyMenu(menu);
3679 }
3680
3681
3682 /*********************************************************************
3683 *
3684 * WM_COPY
3685 *
3686 */
3687 static void EDIT_WM_Copy(EDITSTATE *es)
3688 {
3689 INT s = min(es->selection_start, es->selection_end);
3690 INT e = max(es->selection_start, es->selection_end);
3691 HGLOBAL hdst;
3692 LPWSTR dst;
3693
3694 if (e == s) return;
3695
3696 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3697 dst = GlobalLock(hdst);
3698 strncpyW(dst, es->text + s, e - s);
3699 dst[e - s] = 0; /* ensure 0 termination */
3700 TRACE("%s\n", debugstr_w(dst));
3701 GlobalUnlock(hdst);
3702 OpenClipboard(es->hwndSelf);
3703 EmptyClipboard();
3704 SetClipboardData(CF_UNICODETEXT, hdst);
3705 CloseClipboard();
3706 }
3707
3708
3709 /*********************************************************************
3710 *
3711 * WM_CREATE
3712 *
3713 */
3714 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3715 {
3716 TRACE("%s\n", debugstr_w(name));
3717 /*
3718 * To initialize some final structure members, we call some helper
3719 * functions. However, since the EDITSTATE is not consistent (i.e.
3720 * not fully initialized), we should be very careful which
3721 * functions can be called, and in what order.
3722 */
3723 EDIT_WM_SetFont(es, 0, FALSE);
3724 EDIT_EM_EmptyUndoBuffer(es);
3725
3726 if (name && *name) {
3727 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
3728 /* if we insert text to the editline, the text scrolls out
3729 * of the window, as the caret is placed after the insert
3730 * pos normally; thus we reset es->selection... to 0 and
3731 * update caret
3732 */
3733 es->selection_start = es->selection_end = 0;
3734 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
3735 * Messages are only to be sent when the USER does something to
3736 * change the contents. So I am removing this EN_CHANGE
3737 *
3738 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3739 */
3740 EDIT_EM_ScrollCaret(es);
3741 }
3742 /* force scroll info update */
3743 EDIT_UpdateScrollInfo(es);
3744 return 0;
3745 }
3746
3747
3748 /*********************************************************************
3749 *
3750 * WM_DESTROY
3751 *
3752 */
3753 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
3754 {
3755 LINEDEF *pc, *pp;
3756
3757 if (es->hloc32W) {
3758 while (LocalUnlock(es->hloc32W)) ;
3759 LocalFree(es->hloc32W);
3760 }
3761 if (es->hloc32A) {
3762 while (LocalUnlock(es->hloc32A)) ;
3763 LocalFree(es->hloc32A);
3764 }
3765 if (es->hloc16) {
3766 HINSTANCE16 hInstance = GetWindowWord( es->hwndSelf, GWL_HINSTANCE );
3767 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3768 LOCAL_Free(hInstance, es->hloc16);
3769 }
3770
3771 pc = es->first_line_def;
3772 while (pc)
3773 {
3774 pp = pc->next;
3775 HeapFree(GetProcessHeap(), 0, pc);
3776 pc = pp;
3777 }
3778
3779 SetWindowLongW( es->hwndSelf, 0, 0 );
3780 HeapFree(GetProcessHeap(), 0, es);
3781
3782 return 0;
3783 }
3784
3785
3786 /*********************************************************************
3787 *
3788 * WM_ERASEBKGND
3789 *
3790 */
3791 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
3792 {
3793 HBRUSH brush;
3794 RECT rc;
3795
3796 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
3797 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
3798
3799 GetClientRect(es->hwndSelf, &rc);
3800 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3801 GetClipBox(dc, &rc);
3802 /*
3803 * FIXME: specs say that we should UnrealizeObject() the brush,
3804 * but the specs of UnrealizeObject() say that we shouldn't
3805 * unrealize a stock object. The default brush that
3806 * DefWndProc() returns is ... a stock object.
3807 */
3808 FillRect(dc, &rc, brush);
3809 return -1;
3810 }
3811
3812
3813 /*********************************************************************
3814 *
3815 * WM_GETTEXT
3816 *
3817 */
3818 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3819 {
3820 if(!count) return 0;
3821
3822 if(unicode)
3823 {
3824 LPWSTR textW = (LPWSTR)lParam;
3825 lstrcpynW(textW, es->text, count);
3826 return strlenW(textW);
3827 }
3828 else
3829 {
3830 LPSTR textA = (LPSTR)lParam;
3831 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3832 textA[count - 1] = 0; /* ensure 0 termination */
3833 return strlen(textA);
3834 }
3835 }
3836
3837 /*********************************************************************
3838 *
3839 * WM_HSCROLL
3840 *
3841 */
3842 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3843 {
3844 INT dx;
3845 INT fw;
3846
3847 if (!(es->style & ES_MULTILINE))
3848 return 0;
3849
3850 if (!(es->style & ES_AUTOHSCROLL))
3851 return 0;
3852
3853 dx = 0;
3854 fw = es->format_rect.right - es->format_rect.left;
3855 switch (action) {
3856 case SB_LINELEFT:
3857 TRACE("SB_LINELEFT\n");
3858 if (es->x_offset)
3859 dx = -es->char_width;
3860 break;
3861 case SB_LINERIGHT:
3862 TRACE("SB_LINERIGHT\n");
3863 if (es->x_offset < es->text_width)
3864 dx = es->char_width;
3865 break;
3866 case SB_PAGELEFT:
3867 TRACE("SB_PAGELEFT\n");
3868 if (es->x_offset)
3869 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3870 break;
3871 case SB_PAGERIGHT:
3872 TRACE("SB_PAGERIGHT\n");
3873 if (es->x_offset < es->text_width)
3874 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3875 break;
3876 case SB_LEFT:
3877 TRACE("SB_LEFT\n");
3878 if (es->x_offset)
3879 dx = -es->x_offset;
3880 break;
3881 case SB_RIGHT:
3882 TRACE("SB_RIGHT\n");
3883 if (es->x_offset < es->text_width)
3884 dx = es->text_width - es->x_offset;
3885 break;
3886 case SB_THUMBTRACK:
3887 TRACE("SB_THUMBTRACK %d\n", pos);
3888 es->flags |= EF_HSCROLL_TRACK;
3889 if(es->style & WS_HSCROLL)
3890 dx = pos - es->x_offset;
3891 else
3892 {
3893 INT fw, new_x;
3894 /* Sanity check */
3895 if(pos < 0 || pos > 100) return 0;
3896 /* Assume default scroll range 0-100 */
3897 fw = es->format_rect.right - es->format_rect.left;
3898 new_x = pos * (es->text_width - fw) / 100;
3899 dx = es->text_width ? (new_x - es->x_offset) : 0;
3900 }
3901 break;
3902 case SB_THUMBPOSITION:
3903 TRACE("SB_THUMBPOSITION %d\n", pos);
3904 es->flags &= ~EF_HSCROLL_TRACK;
3905 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3906 dx = pos - es->x_offset;
3907 else
3908 {
3909 INT fw, new_x;
3910 /* Sanity check */
3911 if(pos < 0 || pos > 100) return 0;
3912 /* Assume default scroll range 0-100 */
3913 fw = es->format_rect.right - es->format_rect.left;
3914 new_x = pos * (es->text_width - fw) / 100;
3915 dx = es->text_width ? (new_x - es->x_offset) : 0;
3916 }
3917 if (!dx) {
3918 /* force scroll info update */
3919 EDIT_UpdateScrollInfo(es);
3920 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
3921 }
3922 break;
3923 case SB_ENDSCROLL:
3924 TRACE("SB_ENDSCROLL\n");
3925 break;
3926 /*
3927 * FIXME : the next two are undocumented !
3928 * Are we doing the right thing ?
3929 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3930 * although it's also a regular control message.
3931 */
3932 case EM_GETTHUMB: /* this one is used by NT notepad */
3933 case EM_GETTHUMB16:
3934 {
3935 LRESULT ret;
3936 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3937 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3938 else
3939 {
3940 /* Assume default scroll range 0-100 */
3941 INT fw = es->format_rect.right - es->format_rect.left;
3942 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
3943 }
3944 TRACE("EM_GETTHUMB: returning %ld\n", ret);
3945 return ret;
3946 }
3947 case EM_LINESCROLL16:
3948 TRACE("EM_LINESCROLL16\n");
3949 dx = pos;
3950 break;
3951
3952 default:
3953 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
3954 action, action);
3955 return 0;
3956 }
3957 if (dx)
3958 {
3959 INT fw = es->format_rect.right - es->format_rect.left;
3960 /* check if we are going to move too far */
3961 if(es->x_offset + dx + fw > es->text_width)
3962 dx = es->text_width - fw - es->x_offset;
3963 if(dx)
3964 EDIT_EM_LineScroll_internal(es, dx, 0);
3965 }
3966 return 0;
3967 }
3968
3969
3970 /*********************************************************************
3971 *
3972 * EDIT_CheckCombo
3973 *
3974 */
3975 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
3976 {
3977 HWND hLBox = es->hwndListBox;
3978 HWND hCombo;
3979 BOOL bDropped;
3980 int nEUI;
3981
3982 if (!hLBox)
3983 return FALSE;
3984
3985 hCombo = GetParent(es->hwndSelf);
3986 bDropped = TRUE;
3987 nEUI = 0;
3988
3989 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
3990
3991 if (key == VK_UP || key == VK_DOWN)
3992 {
3993 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
3994 nEUI = 1;
3995
3996 if (msg == WM_KEYDOWN || nEUI)
3997 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
3998 }
3999
4000 switch (msg)
4001 {
4002 case WM_KEYDOWN:
4003 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4004 {
4005 /* make sure ComboLBox pops up */
4006 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4007 key = VK_F4;
4008 nEUI = 2;
4009 }
4010
4011 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4012 break;
4013
4014 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4015 if (nEUI)
4016 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4017 else
4018 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4019 break;
4020 }
4021
4022 if(nEUI == 2)
4023 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4024
4025 return TRUE;
4026 }
4027
4028
4029 /*********************************************************************
4030 *
4031 * WM_KEYDOWN
4032 *
4033 * Handling of special keys that don't produce a WM_CHAR
4034 * (i.e. non-printable keys) & Backspace & Delete
4035 *
4036 */
4037 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4038 {
4039 BOOL shift;
4040 BOOL control;
4041
4042 if (GetKeyState(VK_MENU) & 0x8000)
4043 return 0;
4044
4045 shift = GetKeyState(VK_SHIFT) & 0x8000;
4046 control = GetKeyState(VK_CONTROL) & 0x8000;
4047
4048 switch (key) {
4049 case VK_F4:
4050 case VK_UP:
4051 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4052 break;
4053
4054 /* fall through */
4055 case VK_LEFT:
4056 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4057 EDIT_MoveUp_ML(es, shift);
4058 else
4059 if (control)
4060 EDIT_MoveWordBackward(es, shift);
4061 else
4062 EDIT_MoveBackward(es, shift);
4063 break;
4064 case VK_DOWN:
4065 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4066 break;
4067 /* fall through */
4068 case VK_RIGHT:
4069 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4070 EDIT_MoveDown_ML(es, shift);
4071 else if (control)
4072 EDIT_MoveWordForward(es, shift);
4073 else
4074 EDIT_MoveForward(es, shift);
4075 break;
4076 case VK_HOME:
4077 EDIT_MoveHome(es, shift);
4078 break;
4079 case VK_END:
4080 EDIT_MoveEnd(es, shift);
4081 break;
4082 case VK_PRIOR:
4083 if (es->style & ES_MULTILINE)
4084 EDIT_MovePageUp_ML(es, shift);
4085 else
4086 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4087 break;
4088 case VK_NEXT:
4089 if (es->style & ES_MULTILINE)
4090 EDIT_MovePageDown_ML(es, shift);
4091 else
4092 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4093 break;
4094 case VK_DELETE:
4095 if (!(es->style & ES_READONLY) && !(shift && control)) {
4096 if (es->selection_start != es->selection_end) {
4097 if (shift)
4098 EDIT_WM_Cut(es);
4099 else
4100 EDIT_WM_Clear(es);
4101 } else {
4102 if (shift) {
4103 /* delete character left of caret */
4104 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4105 EDIT_MoveBackward(es, TRUE);
4106 EDIT_WM_Clear(es);
4107 } else if (control) {
4108 /* delete to end of line */
4109 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4110 EDIT_MoveEnd(es, TRUE);
4111 EDIT_WM_Clear(es);
4112 } else {
4113 /* delete character right of caret */
4114 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4115 EDIT_MoveForward(es, TRUE);
4116 EDIT_WM_Clear(es);
4117 }
4118 }
4119 }
4120 break;
4121 case VK_INSERT:
4122 if (shift) {
4123 if (!(es->style & ES_READONLY))
4124 EDIT_WM_Paste(es);
4125 } else if (control)
4126 EDIT_WM_Copy(es);
4127 break;
4128 case VK_RETURN:
4129 /* If the edit doesn't want the return send a message to the default object */
4130 if(!(es->style & ES_WANTRETURN))
4131 {
4132 HWND hwndParent = GetParent(es->hwndSelf);
4133 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4134 if (HIWORD(dw) == DC_HASDEFID)
4135 {
4136 SendMessageW( hwndParent, WM_COMMAND,
4137 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4138 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4139 }
4140 }
4141 break;
4142 }
4143 return 0;
4144 }
4145
4146
4147 /*********************************************************************
4148 *
4149 * WM_KILLFOCUS
4150 *
4151 */
4152 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4153 {
4154 es->flags &= ~EF_FOCUSED;
4155 DestroyCaret();
4156 if(!(es->style & ES_NOHIDESEL))
4157 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4158 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4159 return 0;
4160 }
4161
4162
4163 /*********************************************************************
4164 *
4165 * WM_LBUTTONDBLCLK
4166 *
4167 * The caret position has been set on the WM_LBUTTONDOWN message
4168 *
4169 */
4170 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4171 {
4172 INT s;
4173 INT e = es->selection_end;
4174 INT l;
4175 INT li;
4176 INT ll;
4177
4178 if (!(es->flags & EF_FOCUSED))
4179 return 0;
4180
4181 l = EDIT_EM_LineFromChar(es, e);
4182 li = EDIT_EM_LineIndex(es, l);
4183 ll = EDIT_EM_LineLength(es, e);
4184 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4185 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4186 EDIT_EM_SetSel(es, s, e, FALSE);
4187 EDIT_EM_ScrollCaret(es);
4188 return 0;
4189 }
4190
4191
4192 /*********************************************************************
4193 *
4194 * WM_LBUTTONDOWN
4195 *
4196 */
4197 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4198 {
4199 INT e;
4200 BOOL after_wrap;
4201
4202 if (!(es->flags & EF_FOCUSED))
4203 return 0;
4204
4205 es->bCaptureState = TRUE;
4206 SetCapture(es->hwndSelf);
4207 EDIT_ConfinePoint(es, &x, &y);
4208 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4209 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4210 EDIT_EM_ScrollCaret(es);
4211 es->region_posx = es->region_posy = 0;
4212 SetTimer(es->hwndSelf, 0, 100, NULL);
4213 return 0;
4214 }
4215
4216
4217 /*********************************************************************
4218 *
4219 * WM_LBUTTONUP
4220 *
4221 */
4222 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4223 {
4224 if (es->bCaptureState) {
4225 KillTimer(es->hwndSelf, 0);
4226 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4227 }
4228 es->bCaptureState = FALSE;
4229 return 0;
4230 }
4231
4232
4233 /*********************************************************************
4234 *
4235 * WM_MBUTTONDOWN
4236 *
4237 */
4238 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4239 {
4240 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4241 return 0;
4242 }
4243
4244
4245 /*********************************************************************
4246 *
4247 * WM_MOUSEMOVE
4248 *
4249 */
4250 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4251 {
4252 INT e;
4253 BOOL after_wrap;
4254 INT prex, prey;
4255
4256 if (GetCapture() != es->hwndSelf)
4257 return 0;
4258
4259 /*
4260 * FIXME: gotta do some scrolling if outside client
4261 * area. Maybe reset the timer ?
4262 */
4263 prex = x; prey = y;
4264 EDIT_ConfinePoint(es, &x, &y);
4265 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4266 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4267 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4268 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4269 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4270 return 0;
4271 }
4272
4273
4274 /*********************************************************************
4275 *
4276 * WM_NCCREATE
4277 *
4278 * See also EDIT_WM_StyleChanged
4279 */
4280 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4281 {
4282 EDITSTATE *es;
4283 UINT alloc_size;
4284
4285 TRACE("Creating %s edit control, style = %08lx\n",
4286 unicode ? "Unicode" : "ANSI", lpcs->style);
4287
4288 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4289 return FALSE;
4290 SetWindowLongW( hwnd, 0, (LONG)es );
4291
4292 /*
4293 * Note: since the EDITSTATE has not been fully initialized yet,
4294 * we can't use any API calls that may send
4295 * WM_XXX messages before WM_NCCREATE is completed.
4296 */
4297
4298 es->is_unicode = unicode;
4299 es->style = lpcs->style;
4300
4301 es->bEnableState = !(es->style & WS_DISABLED);
4302
4303 es->hwndSelf = hwnd;
4304 /* Save parent, which will be notified by EN_* messages */
4305 es->hwndParent = lpcs->hwndParent;
4306
4307 if (es->style & ES_COMBO)
4308 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4309
4310 /* Number overrides lowercase overrides uppercase (at least it
4311 * does in Win95). However I'll bet that ES_NUMBER would be
4312 * invalid under Win 3.1.
4313 */
4314 if (es->style & ES_NUMBER) {
4315 ; /* do not override the ES_NUMBER */
4316 } else if (es->style & ES_LOWERCASE) {
4317 es->style &= ~ES_UPPERCASE;
4318 }
4319 if (es->style & ES_MULTILINE) {
4320 es->buffer_limit = BUFLIMIT_MULTI;
4321 if (es->style & WS_VSCROLL)
4322 es->style |= ES_AUTOVSCROLL;
4323 if (es->style & WS_HSCROLL)
4324 es->style |= ES_AUTOHSCROLL;
4325 es->style &= ~ES_PASSWORD;
4326 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4327 /* Confirmed - RIGHT overrides CENTER */
4328 if (es->style & ES_RIGHT)
4329 es->style &= ~ES_CENTER;
4330 es->style &= ~WS_HSCROLL;
4331 es->style &= ~ES_AUTOHSCROLL;
4332 }
4333
4334 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4335 es->style |= ES_AUTOVSCROLL;
4336 } else {
4337 es->buffer_limit = BUFLIMIT_SINGLE;
4338 if (WIN31_LOOK == TWEAK_WineLook ||
4339 WIN95_LOOK == TWEAK_WineLook) {
4340 es->style &= ~ES_CENTER;
4341 es->style &= ~ES_RIGHT;
4342 } else {
4343 if (es->style & ES_RIGHT)
4344 es->style &= ~ES_CENTER;
4345 }
4346 es->style &= ~WS_HSCROLL;
4347 es->style &= ~WS_VSCROLL;
4348 es->style &= ~ES_AUTOVSCROLL;
4349 es->style &= ~ES_WANTRETURN;
4350 if (es->style & ES_PASSWORD)
4351 es->password_char = '*';
4352
4353 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4354 es->style |= ES_AUTOHSCROLL;
4355 }
4356
4357 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4358 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4359 return FALSE;
4360 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4361
4362 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4363 return FALSE;
4364 es->undo_buffer_size = es->buffer_size;
4365
4366 if (es->style & ES_MULTILINE)
4367 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4368 return FALSE;
4369 es->line_count = 1;
4370
4371 /*
4372 * In Win95 look and feel, the WS_BORDER style is replaced by the
4373 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4374 * control a non client area. Not always. This coordinates in some
4375 * way with the window creation code in dialog.c When making
4376 * modifications please ensure that the code still works for edit
4377 * controls created directly with style 0x50800000, exStyle 0 (
4378 * which should have a single pixel border)
4379 */
4380 if (TWEAK_WineLook != WIN31_LOOK)
4381 {
4382 es->style &= ~WS_BORDER;
4383 }
4384 else
4385 {
4386 if ((es->style & WS_BORDER) && !(es->style & WS_DLGFRAME))
4387 SetWindowLongW( hwnd, GWL_STYLE,
4388 GetWindowLongW( hwnd, GWL_STYLE ) & ~WS_BORDER );
4389 }
4390
4391 return TRUE;
4392 }
4393
4394 /*********************************************************************
4395 *
4396 * WM_PAINT
4397 *
4398 */
4399 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam)
4400 {
4401 PAINTSTRUCT ps;
4402 INT i;
4403 HDC dc;
4404 HFONT old_font = 0;
4405 RECT rc;
4406 RECT rcLine;
4407 RECT rcRgn;
4408 BOOL rev = es->bEnableState &&
4409 ((es->flags & EF_FOCUSED) ||
4410 (es->style & ES_NOHIDESEL));
4411 if (!wParam)
4412 dc = BeginPaint(es->hwndSelf, &ps);
4413 else
4414 dc = (HDC) wParam;
4415 if(es->style & WS_BORDER) {
4416 GetClientRect(es->hwndSelf, &rc);
4417 if(es->style & ES_MULTILINE) {
4418 if(es->style & WS_HSCROLL) rc.bottom++;
4419 if(es->style & WS_VSCROLL) rc.right++;
4420 }
4421 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4422 }
4423 IntersectClipRect(dc, es->format_rect.left,
4424 es->format_rect.top,
4425 es->format_rect.right,
4426 es->format_rect.bottom);
4427 if (es->style & ES_MULTILINE) {
4428 GetClientRect(es->hwndSelf, &rc);
4429 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4430 }
4431 if (es->font)
4432 old_font = SelectObject(dc, es->font);
4433 EDIT_NotifyCtlColor(es, dc);
4434
4435 if (!es->bEnableState)
4436 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4437 GetClipBox(dc, &rcRgn);
4438 if (es->style & ES_MULTILINE) {
4439 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4440 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4441 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4442 if (IntersectRect(&rc, &rcRgn, &rcLine))
4443 EDIT_PaintLine(es, dc, i, rev);
4444 }
4445 } else {
4446 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4447 if (IntersectRect(&rc, &rcRgn, &rcLine))
4448 EDIT_PaintLine(es, dc, 0, rev);
4449 }
4450 if (es->font)
4451 SelectObject(dc, old_font);
4452
4453 if (!wParam)
4454 EndPaint(es->hwndSelf, &ps);
4455 }
4456
4457
4458 /*********************************************************************
4459 *
4460 * WM_PASTE
4461 *
4462 */
4463 static void EDIT_WM_Paste(EDITSTATE *es)
4464 {
4465 HGLOBAL hsrc;
4466 LPWSTR src;
4467
4468 /* Protect read-only edit control from modification */
4469 if(es->style & ES_READONLY)
4470 return;
4471
4472 OpenClipboard(es->hwndSelf);
4473 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4474 src = (LPWSTR)GlobalLock(hsrc);
4475 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4476 GlobalUnlock(hsrc);
4477 }
4478 CloseClipboard();
4479 }
4480
4481
4482 /*********************************************************************
4483 *
4484 * WM_SETFOCUS
4485 *
4486 */
4487 static void EDIT_WM_SetFocus(EDITSTATE *es)
4488 {
4489 es->flags |= EF_FOCUSED;
4490 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4491 EDIT_SetCaretPos(es, es->selection_end,
4492 es->flags & EF_AFTER_WRAP);
4493 if(!(es->style & ES_NOHIDESEL))
4494 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4495 ShowCaret(es->hwndSelf);
4496 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4497 }
4498
4499
4500 /*********************************************************************
4501 *
4502 * WM_SETFONT
4503 *
4504 * With Win95 look the margins are set to default font value unless
4505 * the system font (font == 0) is being set, in which case they are left
4506 * unchanged.
4507 *
4508 */
4509 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4510 {
4511 TEXTMETRICW tm;
4512 HDC dc;
4513 HFONT old_font = 0;
4514 RECT r;
4515
4516 es->font = font;
4517 dc = GetDC(es->hwndSelf);
4518 if (font)
4519 old_font = SelectObject(dc, font);
4520 GetTextMetricsW(dc, &tm);
4521 es->line_height = tm.tmHeight;
4522 es->char_width = tm.tmAveCharWidth;
4523 if (font)
4524 SelectObject(dc, old_font);
4525 ReleaseDC(es->hwndSelf, dc);
4526 if (font && (TWEAK_WineLook > WIN31_LOOK))
4527 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4528 EC_USEFONTINFO, EC_USEFONTINFO);
4529
4530 /* Force the recalculation of the format rect for each font change */
4531 GetClientRect(es->hwndSelf, &r);
4532 EDIT_SetRectNP(es, &r);
4533
4534 if (es->style & ES_MULTILINE)
4535 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4536 else
4537 EDIT_CalcLineWidth_SL(es);
4538
4539 if (redraw)
4540 EDIT_UpdateText(es, NULL, TRUE);
4541 if (es->flags & EF_FOCUSED) {
4542 DestroyCaret();
4543 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4544 EDIT_SetCaretPos(es, es->selection_end,
4545 es->flags & EF_AFTER_WRAP);
4546 ShowCaret(es->hwndSelf);
4547 }
4548 }
4549
4550
4551 /*********************************************************************
4552 *
4553 * WM_SETTEXT
4554 *
4555 * NOTES
4556 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4557 * The modified flag is reset. No notifications are sent.
4558 *
4559 * For single-line controls, reception of WM_SETTEXT triggers:
4560 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4561 *
4562 */
4563 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode)
4564 {
4565 LPWSTR text = NULL;
4566
4567 if(unicode)
4568 text = (LPWSTR)lParam;
4569 else if (lParam)
4570 {
4571 LPCSTR textA = (LPCSTR)lParam;
4572 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4573 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4574 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4575 }
4576
4577 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4578 if (text) {
4579 TRACE("%s\n", debugstr_w(text));
4580 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
4581 if(!unicode)
4582 HeapFree(GetProcessHeap(), 0, text);
4583 } else {
4584 static const WCHAR empty_stringW[] = {0};
4585 TRACE("<NULL>\n");
4586 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
4587 }
4588 es->x_offset = 0;
4589 es->flags &= ~EF_MODIFIED;
4590 EDIT_EM_SetSel(es, 0, 0, FALSE);
4591 /* Send the notification after the selection start and end have been set
4592 * edit control doesn't send notification on WM_SETTEXT
4593 * if it is multiline, or it is part of combobox
4594 */
4595 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4596 {
4597 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4598 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4599 }
4600 EDIT_EM_ScrollCaret(es);
4601 }
4602
4603
4604 /*********************************************************************
4605 *
4606 * WM_SIZE
4607 *
4608 */
4609 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
4610 {
4611 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4612 RECT rc;
4613 TRACE("width = %d, height = %d\n", width, height);
4614 SetRect(&rc, 0, 0, width, height);
4615 EDIT_SetRectNP(es, &rc);
4616 EDIT_UpdateText(es, NULL, TRUE);
4617 }
4618 }
4619
4620
4621 /*********************************************************************
4622 *
4623 * WM_STYLECHANGED
4624 *
4625 * This message is sent by SetWindowLong on having changed either the Style
4626 * or the extended style.
4627 *
4628 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4629 *
4630 * See also EDIT_WM_NCCreate
4631 *
4632 * It appears that the Windows version of the edit control allows the style
4633 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4634 * style variable which will generally be different. In this function we
4635 * update the internal style based on what changed in the externally visible
4636 * style.
4637 *
4638 * Much of this content as based upon the MSDN, especially:
4639 * Platform SDK Documentation -> User Interface Services ->
4640 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4641 * Edit Control Styles
4642 */
4643 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4644 {
4645 if (GWL_STYLE == which) {
4646 DWORD style_change_mask;
4647 DWORD new_style;
4648 /* Only a subset of changes can be applied after the control
4649 * has been created.
4650 */
4651 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4652 ES_NUMBER;
4653 if (es->style & ES_MULTILINE)
4654 style_change_mask |= ES_WANTRETURN;
4655
4656 new_style = style->styleNew & style_change_mask;
4657
4658 /* Number overrides lowercase overrides uppercase (at least it
4659 * does in Win95). However I'll bet that ES_NUMBER would be
4660 * invalid under Win 3.1.
4661 */
4662 if (new_style & ES_NUMBER) {
4663 ; /* do not override the ES_NUMBER */
4664 } else if (new_style & ES_LOWERCASE) {
4665 new_style &= ~ES_UPPERCASE;
4666 }
4667
4668 es->style = (es->style & ~style_change_mask) | new_style;
4669 } else if (GWL_EXSTYLE == which) {
4670 ; /* FIXME - what is needed here */
4671 } else {
4672 WARN ("Invalid style change %d\n",which);
4673 }
4674
4675 return 0;
4676 }
4677
4678 /*********************************************************************
4679 *
4680 * WM_SYSKEYDOWN
4681 *
4682 */
4683 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4684 {
4685 if ((key == VK_BACK) && (key_data & 0x2000)) {
4686 if (EDIT_EM_CanUndo(es))
4687 EDIT_EM_Undo(es);
4688 return 0;
4689 } else if (key == VK_UP || key == VK_DOWN) {
4690 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4691 return 0;
4692 }
4693 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4694 }
4695
4696
4697 /*********************************************************************
4698 *
4699 * WM_TIMER
4700 *
4701 */
4702 static void EDIT_WM_Timer(EDITSTATE *es)
4703 {
4704 if (es->region_posx < 0) {
4705 EDIT_MoveBackward(es, TRUE);
4706 } else if (es->region_posx > 0) {
4707 EDIT_MoveForward(es, TRUE);
4708 }
4709 /*
4710 * FIXME: gotta do some vertical scrolling here, like
4711 * EDIT_EM_LineScroll(hwnd, 0, 1);
4712 */
4713 }
4714
4715 /*********************************************************************
4716 *
4717 * WM_VSCROLL
4718 *
4719 */
4720 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4721 {
4722 INT dy;
4723
4724 if (!(es->style & ES_MULTILINE))
4725 return 0;
4726
4727 if (!(es->style & ES_AUTOVSCROLL))
4728 return 0;
4729
4730 dy = 0;
4731 switch (action) {
4732 case SB_LINEUP:
4733 case SB_LINEDOWN:
4734 case SB_PAGEUP:
4735 case SB_PAGEDOWN:
4736 TRACE("action %d\n", action);
4737 EDIT_EM_Scroll(es, action);
4738 return 0;
4739 case SB_TOP:
4740 TRACE("SB_TOP\n");
4741 dy = -es->y_offset;
4742 break;
4743 case SB_BOTTOM:
4744 TRACE("SB_BOTTOM\n");
4745 dy = es->line_count - 1 - es->y_offset;
4746 break;
4747 case SB_THUMBTRACK:
4748 TRACE("SB_THUMBTRACK %d\n", pos);
4749 es->flags |= EF_VSCROLL_TRACK;
4750 if(es->style & WS_VSCROLL)
4751 dy = pos - es->y_offset;
4752 else
4753 {
4754 /* Assume default scroll range 0-100 */
4755 INT vlc, new_y;
4756 /* Sanity check */
4757 if(pos < 0 || pos > 100) return 0;
4758 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4759 new_y = pos * (es->line_count - vlc) / 100;
4760 dy = es->line_count ? (new_y - es->y_offset) : 0;
4761 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4762 es->line_count, es->y_offset, pos, dy);
4763 }
4764 break;
4765 case SB_THUMBPOSITION:
4766 TRACE("SB_THUMBPOSITION %d\n", pos);
4767 es->flags &= ~EF_VSCROLL_TRACK;
4768 if(es->style & WS_VSCROLL)
4769 dy = pos - es->y_offset;
4770 else
4771 {
4772 /* Assume default scroll range 0-100 */
4773 INT vlc, new_y;
4774 /* Sanity check */
4775 if(pos < 0 || pos > 100) return 0;
4776 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4777 new_y = pos * (es->line_count - vlc) / 100;
4778 dy = es->line_count ? (new_y - es->y_offset) : 0;
4779 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4780 es->line_count, es->y_offset, pos, dy);
4781 }
4782 if (!dy)
4783 {
4784 /* force scroll info update */
4785 EDIT_UpdateScrollInfo(es);
4786 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
4787 }
4788 break;
4789 case SB_ENDSCROLL:
4790 TRACE("SB_ENDSCROLL\n");
4791 break;
4792 /*
4793 * FIXME : the next two are undocumented !
4794 * Are we doing the right thing ?
4795 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4796 * although it's also a regular control message.
4797 */
4798 case EM_GETTHUMB: /* this one is used by NT notepad */
4799 case EM_GETTHUMB16:
4800 {
4801 LRESULT ret;
4802 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4803 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4804 else
4805 {
4806 /* Assume default scroll range 0-100 */
4807 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4808 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4809 }
4810 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4811 return ret;
4812 }
4813 case EM_LINESCROLL16:
4814 TRACE("EM_LINESCROLL16 %d\n", pos);
4815 dy = pos;
4816 break;
4817
4818 default:
4819 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4820 action, action);
4821 return 0;
4822 }
4823 if (dy)
4824 EDIT_EM_LineScroll(es, 0, dy);
4825 return 0;
4826 }
4827
4828 /*********************************************************************
4829 *
4830 * EDIT_UpdateText
4831 *
4832 */
4833 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
4834 {
4835 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4836 InvalidateRgn(es->hwndSelf, hrgn, bErase);
4837 }
4838
4839
4840 /*********************************************************************
4841 *
4842 * EDIT_UpdateText
4843 *
4844 */
4845 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
4846 {
4847 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4848 InvalidateRect(es->hwndSelf, rc, bErase);
4849 }
Maarten's multimedia branch