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Reenable device's default render states initialization.
[wine/multimedia.git] / controls / edit.c
blob66b9874e98f904d1ddf78abc1fcacba057dba311
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 "win.h"
48 #include "wine/winbase16.h"
49 #include "wine/winuser16.h"
50 #include "wine/unicode.h"
51 #include "controls.h"
52 #include "local.h"
53 #include "user.h"
54 #include "wine/debug.h"
55
56 WINE_DEFAULT_DEBUG_CHANNEL(edit);
57 WINE_DECLARE_DEBUG_CHANNEL(combo);
58 WINE_DECLARE_DEBUG_CHANNEL(relay);
59
60 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
61 FIXME: BTW, new specs say 65535 (do you dare ???) */
62 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
63 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
64 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
65 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
66
67 /*
68 * extra flags for EDITSTATE.flags field
69 */
70 #define EF_MODIFIED 0x0001 /* text has been modified */
71 #define EF_FOCUSED 0x0002 /* we have input focus */
72 #define EF_UPDATE 0x0004 /* notify parent of changed state */
73 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
74 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
75 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
76 wrapped line, instead of in front of the next character */
77 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
78
79 typedef enum
80 {
81 END_0 = 0, /* line ends with terminating '\0' character */
82 END_WRAP, /* line is wrapped */
83 END_HARD, /* line ends with a hard return '\r\n' */
84 END_SOFT, /* line ends with a soft return '\r\r\n' */
85 END_RICH /* line ends with a single '\n' */
86 } LINE_END;
87
88 typedef struct tagLINEDEF {
89 INT length; /* bruto length of a line in bytes */
90 INT net_length; /* netto length of a line in visible characters */
91 LINE_END ending;
92 INT width; /* width of the line in pixels */
93 INT index; /* line index into the buffer */
94 struct tagLINEDEF *next;
95 } LINEDEF;
96
97 typedef struct
98 {
99 BOOL is_unicode; /* how the control was created */
100 LPWSTR text; /* the actual contents of the control */
101 UINT buffer_size; /* the size of the buffer in characters */
102 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
103 HFONT font; /* NULL means standard system font */
104 INT x_offset; /* scroll offset for multi lines this is in pixels
105 for single lines it's in characters */
106 INT line_height; /* height of a screen line in pixels */
107 INT char_width; /* average character width in pixels */
108 DWORD style; /* sane version of wnd->dwStyle */
109 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
110 INT undo_insert_count; /* number of characters inserted in sequence */
111 UINT undo_position; /* character index of the insertion and deletion */
112 LPWSTR undo_text; /* deleted text */
113 UINT undo_buffer_size; /* size of the deleted text buffer */
114 INT selection_start; /* == selection_end if no selection */
115 INT selection_end; /* == current caret position */
116 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
117 INT left_margin; /* in pixels */
118 INT right_margin; /* in pixels */
119 RECT format_rect;
120 INT text_width; /* width of the widest line in pixels for multi line controls
121 and just line width for single line controls */
122 INT region_posx; /* Position of cursor relative to region: */
123 INT region_posy; /* -1: to left, 0: within, 1: to right */
124 EDITWORDBREAKPROC16 word_break_proc16;
125 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
126 INT line_count; /* number of lines */
127 INT y_offset; /* scroll offset in number of lines */
128 BOOL bCaptureState; /* flag indicating whether mouse was captured */
129 BOOL bEnableState; /* flag keeping the enable state */
130 HWND hwndSelf; /* the our window handle */
131 HWND hwndParent; /* Handle of parent for sending EN_* messages.
132 Even if parent will change, EN_* messages
133 should be sent to the first parent. */
134 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
135 /*
136 * only for multi line controls
137 */
138 INT lock_count; /* amount of re-entries in the EditWndProc */
139 INT tabs_count;
140 LPINT tabs;
141 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
142 HLOCAL hloc32W; /* our unicode local memory block */
143 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
144 or EM_SETHANDLE16 */
145 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
146 or EM_SETHANDLE */
147 } EDITSTATE;
148
149
150 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
151 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
152
153 /* used for disabled or read-only edit control */
154 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
155 do \
156 { /* Notify parent which has created this edit control */ \
157 TRACE("notification " str " sent to hwnd=%p\n", es->hwndParent); \
158 SendMessageW(es->hwndParent, WM_COMMAND, \
159 MAKEWPARAM(GetWindowLongW((es->hwndSelf),GWL_ID), wNotifyCode), \
160 (LPARAM)(es->hwndSelf)); \
161 } while(0)
162
163 /*********************************************************************
164 *
165 * Declarations
166 *
167 */
168
169 /*
170 * These functions have trivial implementations
171 * We still like to call them internally
172 * "static inline" makes them more like macro's
173 */
174 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
175 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
176 static inline void EDIT_WM_Clear(EDITSTATE *es);
177 static inline void EDIT_WM_Cut(EDITSTATE *es);
178
179 /*
180 * Helper functions only valid for one type of control
181 */
182 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
183 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
184 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
185 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
186 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
187 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
188 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
189 /*
190 * Helper functions valid for both single line _and_ multi line controls
191 */
192 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
193 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
194 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
195 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
196 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
197 static void EDIT_LockBuffer(EDITSTATE *es);
198 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size, BOOL honor_limit);
199 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
200 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
201 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
202 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
203 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
204 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
205 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
206 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
207 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
208 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
209 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
210 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
211 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
212 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
213 /*
214 * EM_XXX message handlers
215 */
216 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
217 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
218 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
219 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
220 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
221 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
222 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
223 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
224 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
225 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
226 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
227 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
228 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
229 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
230 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
231 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
232 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
233 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
234 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
235 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
236 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
237 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
238 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
239 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
240 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam);
241 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
242 static BOOL EDIT_EM_Undo(EDITSTATE *es);
243 /*
244 * WM_XXX message handlers
245 */
246 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
247 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
248 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
249 static void EDIT_WM_Copy(EDITSTATE *es);
250 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
251 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
252 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
253 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
254 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
255 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
256 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
257 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
258 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
259 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
260 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
261 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
262 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
263 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam);
264 static void EDIT_WM_Paste(EDITSTATE *es);
265 static void EDIT_WM_SetFocus(EDITSTATE *es);
266 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
267 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode);
268 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
269 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
270 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
271 static void EDIT_WM_Timer(EDITSTATE *es);
272 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
273 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
274 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
275
276 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
277 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
278
279 /*********************************************************************
280 * edit class descriptor
281 */
282 const struct builtin_class_descr EDIT_builtin_class =
283 {
284 "Edit", /* name */
285 CS_GLOBALCLASS | CS_DBLCLKS | CS_PARENTDC, /* style */
286 EditWndProcA, /* procA */
287 EditWndProcW, /* procW */
288 sizeof(EDITSTATE *), /* extra */
289 IDC_IBEAMA, /* cursor */
290 0 /* brush */
291 };
292
293
294 /*********************************************************************
295 *
296 * EM_CANUNDO
297 *
298 */
299 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
300 {
301 return (es->undo_insert_count || strlenW(es->undo_text));
302 }
303
304
305 /*********************************************************************
306 *
307 * EM_EMPTYUNDOBUFFER
308 *
309 */
310 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
311 {
312 es->undo_insert_count = 0;
313 *es->undo_text = '\0';
314 }
315
316
317 /*********************************************************************
318 *
319 * WM_CLEAR
320 *
321 */
322 static inline void EDIT_WM_Clear(EDITSTATE *es)
323 {
324 static const WCHAR empty_stringW[] = {0};
325
326 /* Protect read-only edit control from modification */
327 if(es->style & ES_READONLY)
328 return;
329
330 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
331 }
332
333
334 /*********************************************************************
335 *
336 * WM_CUT
337 *
338 */
339 static inline void EDIT_WM_Cut(EDITSTATE *es)
340 {
341 EDIT_WM_Copy(es);
342 EDIT_WM_Clear(es);
343 }
344
345
346 /**********************************************************************
347 * get_app_version
348 *
349 * Returns the window version in case Wine emulates a later version
350 * of windows then the application expects.
351 *
352 * In a number of cases when windows runs an application that was
353 * designed for an earlier windows version, windows reverts
354 * to "old" behaviour of that earlier version.
355 *
356 * An example is a disabled edit control that needs to be painted.
357 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
358 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
359 * applications with an expected version 0f 4.0 or higher.
360 *
361 */
362 static DWORD get_app_version(void)
363 {
364 static DWORD version;
365 if (!version)
366 {
367 DWORD dwEmulatedVersion;
368 OSVERSIONINFOW info;
369 DWORD dwProcVersion = GetProcessVersion(0);
370
371 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
372 GetVersionExW( &info );
373 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
374 /* FIXME: this may not be 100% correct; see discussion on the
375 * wine developer list in Nov 1999 */
376 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
377 }
378 return version;
379 }
380
381
382 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
383 {
384 UINT msg;
385
386 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
387 msg = WM_CTLCOLORSTATIC;
388 else
389 msg = WM_CTLCOLOREDIT;
390
391 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
392 return (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
393 }
394
395 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
396 {
397 if(unicode)
398 return DefWindowProcW(hwnd, msg, wParam, lParam);
399 else
400 return DefWindowProcA(hwnd, msg, wParam, lParam);
401 }
402
403 /*********************************************************************
404 *
405 * EditWndProc_common
406 *
407 * The messages are in the order of the actual integer values
408 * (which can be found in include/windows.h)
409 * Wherever possible the 16 bit versions are converted to
410 * the 32 bit ones, so that we can 'fall through' to the
411 * helper functions. These are mostly 32 bit (with a few
412 * exceptions, clearly indicated by a '16' extension to their
413 * names).
414 *
415 */
416 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
417 WPARAM wParam, LPARAM lParam, BOOL unicode )
418 {
419 EDITSTATE *es = (EDITSTATE *)GetWindowLongW( hwnd, 0 );
420 LRESULT result = 0;
421
422 TRACE("hwnd=%p msg=%x wparam=%x lparam=%lx\n", hwnd, msg, wParam, lParam);
423
424 if (!es && msg != WM_NCCREATE)
425 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
426 else if (msg == WM_NCCREATE)
427 return EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
428 else if (msg == WM_DESTROY)
429 return EDIT_WM_Destroy(es);
430
431
432 if (es) EDIT_LockBuffer(es);
433
434 switch (msg) {
435 case EM_GETSEL16:
436 wParam = 0;
437 lParam = 0;
438 /* fall through */
439 case EM_GETSEL:
440 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
441 break;
442
443 case EM_SETSEL16:
444 if (SLOWORD(lParam) == -1)
445 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
446 else
447 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
448 if (!wParam)
449 EDIT_EM_ScrollCaret(es);
450 result = 1;
451 break;
452 case EM_SETSEL:
453 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
454 EDIT_EM_ScrollCaret(es);
455 result = 1;
456 break;
457
458 case EM_GETRECT16:
459 if (lParam)
460 CONV_RECT32TO16(&es->format_rect, MapSL(lParam));
461 break;
462 case EM_GETRECT:
463 if (lParam)
464 CopyRect((LPRECT)lParam, &es->format_rect);
465 break;
466
467 case EM_SETRECT16:
468 if ((es->style & ES_MULTILINE) && lParam) {
469 RECT rc;
470 CONV_RECT16TO32(MapSL(lParam), &rc);
471 EDIT_SetRectNP(es, &rc);
472 EDIT_UpdateText(es, NULL, TRUE);
473 }
474 break;
475 case EM_SETRECT:
476 if ((es->style & ES_MULTILINE) && lParam) {
477 EDIT_SetRectNP(es, (LPRECT)lParam);
478 EDIT_UpdateText(es, NULL, TRUE);
479 }
480 break;
481
482 case EM_SETRECTNP16:
483 if ((es->style & ES_MULTILINE) && lParam) {
484 RECT rc;
485 CONV_RECT16TO32(MapSL(lParam), &rc);
486 EDIT_SetRectNP(es, &rc);
487 }
488 break;
489 case EM_SETRECTNP:
490 if ((es->style & ES_MULTILINE) && lParam)
491 EDIT_SetRectNP(es, (LPRECT)lParam);
492 break;
493
494 case EM_SCROLL16:
495 case EM_SCROLL:
496 result = EDIT_EM_Scroll(es, (INT)wParam);
497 break;
498
499 case EM_LINESCROLL16:
500 wParam = (WPARAM)(INT)SHIWORD(lParam);
501 lParam = (LPARAM)(INT)SLOWORD(lParam);
502 /* fall through */
503 case EM_LINESCROLL:
504 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
505 break;
506
507 case EM_SCROLLCARET16:
508 case EM_SCROLLCARET:
509 EDIT_EM_ScrollCaret(es);
510 result = 1;
511 break;
512
513 case EM_GETMODIFY16:
514 case EM_GETMODIFY:
515 result = ((es->flags & EF_MODIFIED) != 0);
516 break;
517
518 case EM_SETMODIFY16:
519 case EM_SETMODIFY:
520 if (wParam)
521 es->flags |= EF_MODIFIED;
522 else
523 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
524 break;
525
526 case EM_GETLINECOUNT16:
527 case EM_GETLINECOUNT:
528 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
529 break;
530
531 case EM_LINEINDEX16:
532 if ((INT16)wParam == -1)
533 wParam = (WPARAM)-1;
534 /* fall through */
535 case EM_LINEINDEX:
536 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
537 break;
538
539 case EM_SETHANDLE16:
540 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
541 break;
542 case EM_SETHANDLE:
543 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
544 break;
545
546 case EM_GETHANDLE16:
547 result = (LRESULT)EDIT_EM_GetHandle16(es);
548 break;
549 case EM_GETHANDLE:
550 result = (LRESULT)EDIT_EM_GetHandle(es);
551 break;
552
553 case EM_GETTHUMB16:
554 case EM_GETTHUMB:
555 result = EDIT_EM_GetThumb(es);
556 break;
557
558 /* these messages missing from specs */
559 case WM_USER+15:
560 case 0x00bf:
561 case WM_USER+16:
562 case 0x00c0:
563 case WM_USER+19:
564 case 0x00c3:
565 case WM_USER+26:
566 case 0x00ca:
567 FIXME("undocumented message 0x%x, please report\n", msg);
568 result = DefWindowProcW(hwnd, msg, wParam, lParam);
569 break;
570
571 case EM_LINELENGTH16:
572 case EM_LINELENGTH:
573 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
574 break;
575
576 case EM_REPLACESEL16:
577 lParam = (LPARAM)MapSL(lParam);
578 unicode = FALSE; /* 16-bit message is always ascii */
579 /* fall through */
580 case EM_REPLACESEL:
581 {
582 LPWSTR textW;
583
584 if(unicode)
585 textW = (LPWSTR)lParam;
586 else
587 {
588 LPSTR textA = (LPSTR)lParam;
589 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
590 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
591 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
592 }
593
594 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
595 result = 1;
596
597 if(!unicode)
598 HeapFree(GetProcessHeap(), 0, textW);
599 break;
600 }
601
602 case EM_GETLINE16:
603 lParam = (LPARAM)MapSL(lParam);
604 unicode = FALSE; /* 16-bit message is always ascii */
605 /* fall through */
606 case EM_GETLINE:
607 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
608 break;
609
610 case EM_LIMITTEXT16:
611 case EM_SETLIMITTEXT:
612 EDIT_EM_SetLimitText(es, (INT)wParam);
613 break;
614
615 case EM_CANUNDO16:
616 case EM_CANUNDO:
617 result = (LRESULT)EDIT_EM_CanUndo(es);
618 break;
619
620 case EM_UNDO16:
621 case EM_UNDO:
622 case WM_UNDO:
623 result = (LRESULT)EDIT_EM_Undo(es);
624 break;
625
626 case EM_FMTLINES16:
627 case EM_FMTLINES:
628 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
629 break;
630
631 case EM_LINEFROMCHAR16:
632 case EM_LINEFROMCHAR:
633 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
634 break;
635
636 case EM_SETTABSTOPS16:
637 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
638 break;
639 case EM_SETTABSTOPS:
640 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
641 break;
642
643 case EM_SETPASSWORDCHAR16:
644 unicode = FALSE; /* 16-bit message is always ascii */
645 /* fall through */
646 case EM_SETPASSWORDCHAR:
647 {
648 WCHAR charW = 0;
649
650 if(unicode)
651 charW = (WCHAR)wParam;
652 else
653 {
654 CHAR charA = wParam;
655 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
656 }
657
658 EDIT_EM_SetPasswordChar(es, charW);
659 break;
660 }
661
662 case EM_EMPTYUNDOBUFFER16:
663 case EM_EMPTYUNDOBUFFER:
664 EDIT_EM_EmptyUndoBuffer(es);
665 break;
666
667 case EM_GETFIRSTVISIBLELINE16:
668 result = es->y_offset;
669 break;
670 case EM_GETFIRSTVISIBLELINE:
671 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
672 break;
673
674 case EM_SETREADONLY16:
675 case EM_SETREADONLY:
676 if (wParam) {
677 SetWindowLongW( hwnd, GWL_STYLE,
678 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
679 es->style |= ES_READONLY;
680 } else {
681 SetWindowLongW( hwnd, GWL_STYLE,
682 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
683 es->style &= ~ES_READONLY;
684 }
685 result = 1;
686 break;
687
688 case EM_SETWORDBREAKPROC16:
689 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
690 break;
691 case EM_SETWORDBREAKPROC:
692 EDIT_EM_SetWordBreakProc(es, lParam);
693 break;
694
695 case EM_GETWORDBREAKPROC16:
696 result = (LRESULT)es->word_break_proc16;
697 break;
698 case EM_GETWORDBREAKPROC:
699 result = (LRESULT)es->word_break_proc;
700 break;
701
702 case EM_GETPASSWORDCHAR16:
703 unicode = FALSE; /* 16-bit message is always ascii */
704 /* fall through */
705 case EM_GETPASSWORDCHAR:
706 {
707 if(unicode)
708 result = es->password_char;
709 else
710 {
711 WCHAR charW = es->password_char;
712 CHAR charA = 0;
713 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
714 result = charA;
715 }
716 break;
717 }
718
719 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
720
721 case EM_SETMARGINS:
722 EDIT_EM_SetMargins(es, (INT)wParam, SLOWORD(lParam), SHIWORD(lParam));
723 break;
724
725 case EM_GETMARGINS:
726 result = MAKELONG(es->left_margin, es->right_margin);
727 break;
728
729 case EM_GETLIMITTEXT:
730 result = es->buffer_limit;
731 break;
732
733 case EM_POSFROMCHAR:
734 result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
735 break;
736
737 case EM_CHARFROMPOS:
738 result = EDIT_EM_CharFromPos(es, SLOWORD(lParam), SHIWORD(lParam));
739 break;
740
741 /* End of the EM_ messages which were in numerical order; what order
742 * are these in? vaguely alphabetical?
743 */
744
745 case WM_GETDLGCODE:
746 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
747
748 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
749 {
750 int vk = (int)((LPMSG)lParam)->wParam;
751
752 if (vk == VK_RETURN && (GetWindowLongW( hwnd, GWL_STYLE ) & ES_WANTRETURN))
753 {
754 result |= DLGC_WANTMESSAGE;
755 }
756 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
757 {
758 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
759 result |= DLGC_WANTMESSAGE;
760 }
761 }
762 break;
763
764 case WM_CHAR:
765 {
766 WCHAR charW;
767
768 if(unicode)
769 charW = wParam;
770 else
771 {
772 CHAR charA = wParam;
773 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
774 }
775
776 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
777 {
778 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
779 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
780 break;
781 }
782 EDIT_WM_Char(es, charW);
783 break;
784 }
785
786 case WM_CLEAR:
787 EDIT_WM_Clear(es);
788 break;
789
790 case WM_COMMAND:
791 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
792 break;
793
794 case WM_CONTEXTMENU:
795 EDIT_WM_ContextMenu(es, SLOWORD(lParam), SHIWORD(lParam));
796 break;
797
798 case WM_COPY:
799 EDIT_WM_Copy(es);
800 break;
801
802 case WM_CREATE:
803 if(unicode)
804 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
805 else
806 {
807 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
808 LPWSTR nameW = NULL;
809 if(nameA)
810 {
811 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
812 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
813 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
814 }
815 result = EDIT_WM_Create(es, nameW);
816 if(nameW)
817 HeapFree(GetProcessHeap(), 0, nameW);
818 }
819 break;
820
821 case WM_CUT:
822 EDIT_WM_Cut(es);
823 break;
824
825 case WM_ENABLE:
826 es->bEnableState = (BOOL) wParam;
827 EDIT_UpdateText(es, NULL, TRUE);
828 break;
829
830 case WM_ERASEBKGND:
831 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
832 break;
833
834 case WM_GETFONT:
835 result = (LRESULT)es->font;
836 break;
837
838 case WM_GETTEXT:
839 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
840 break;
841
842 case WM_GETTEXTLENGTH:
843 if (unicode) result = strlenW(es->text);
844 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
845 NULL, 0, NULL, NULL );
846 break;
847
848 case WM_HSCROLL:
849 result = EDIT_WM_HScroll(es, LOWORD(wParam), SHIWORD(wParam));
850 break;
851
852 case WM_KEYDOWN:
853 result = EDIT_WM_KeyDown(es, (INT)wParam);
854 break;
855
856 case WM_KILLFOCUS:
857 result = EDIT_WM_KillFocus(es);
858 break;
859
860 case WM_LBUTTONDBLCLK:
861 result = EDIT_WM_LButtonDblClk(es);
862 break;
863
864 case WM_LBUTTONDOWN:
865 result = EDIT_WM_LButtonDown(es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
866 break;
867
868 case WM_LBUTTONUP:
869 result = EDIT_WM_LButtonUp(es);
870 break;
871
872 case WM_MBUTTONDOWN:
873 result = EDIT_WM_MButtonDown(es);
874 break;
875
876 case WM_MOUSEACTIVATE:
877 /*
878 * FIXME: maybe DefWindowProc() screws up, but it seems that
879 * modeless dialog boxes need this. If we don't do this, the focus
880 * will _not_ be set by DefWindowProc() for edit controls in a
881 * modeless dialog box ???
882 */
883 SetFocus(hwnd);
884 result = MA_ACTIVATE;
885 break;
886
887 case WM_MOUSEMOVE:
888 result = EDIT_WM_MouseMove(es, SLOWORD(lParam), SHIWORD(lParam));
889 break;
890
891 case WM_PAINT:
892 EDIT_WM_Paint(es, wParam);
893 break;
894
895 case WM_PASTE:
896 EDIT_WM_Paste(es);
897 break;
898
899 case WM_SETFOCUS:
900 EDIT_WM_SetFocus(es);
901 break;
902
903 case WM_SETFONT:
904 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
905 break;
906
907 case WM_SETREDRAW:
908 /* FIXME: actually set an internal flag and behave accordingly */
909 break;
910
911 case WM_SETTEXT:
912 EDIT_WM_SetText(es, lParam, unicode);
913 result = TRUE;
914 break;
915
916 case WM_SIZE:
917 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
918 break;
919
920 case WM_STYLECHANGED:
921 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
922 break;
923
924 case WM_STYLECHANGING:
925 result = 0; /* See EDIT_WM_StyleChanged */
926 break;
927
928 case WM_SYSKEYDOWN:
929 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
930 break;
931
932 case WM_TIMER:
933 EDIT_WM_Timer(es);
934 break;
935
936 case WM_VSCROLL:
937 result = EDIT_WM_VScroll(es, LOWORD(wParam), SHIWORD(wParam));
938 break;
939
940 case WM_MOUSEWHEEL:
941 {
942 int gcWheelDelta = 0;
943 UINT pulScrollLines = 3;
944 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
945
946 if (wParam & (MK_SHIFT | MK_CONTROL)) {
947 result = DefWindowProcW(hwnd, msg, wParam, lParam);
948 break;
949 }
950 gcWheelDelta -= SHIWORD(wParam);
951 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
952 {
953 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
954 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
955 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
956 }
957 }
958 break;
959 default:
960 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
961 break;
962 }
963
964 if (es) EDIT_UnlockBuffer(es, FALSE);
965
966 return result;
967 }
968
969 /*********************************************************************
970 *
971 * EditWndProcW (USER32.@)
972 */
973 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
974 {
975 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
976 }
977
978 /*********************************************************************
979 *
980 * EditWndProc (USER32.@)
981 */
982 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
983 {
984 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
985 }
986
987 /*********************************************************************
988 *
989 * EDIT_BuildLineDefs_ML
990 *
991 * Build linked list of text lines.
992 * Lines can end with '\0' (last line), a character (if it is wrapped),
993 * a soft return '\r\r\n' or a hard return '\r\n'
994 *
995 */
996 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
997 {
998 HDC dc;
999 HFONT old_font = 0;
1000 LPWSTR current_position, cp;
1001 INT fw;
1002 LINEDEF *current_line;
1003 LINEDEF *previous_line;
1004 LINEDEF *start_line;
1005 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1006 INT line_count = es->line_count;
1007 INT orig_net_length;
1008 RECT rc;
1009
1010 if (istart == iend && delta == 0)
1011 return;
1012
1013 dc = GetDC(es->hwndSelf);
1014 if (es->font)
1015 old_font = SelectObject(dc, es->font);
1016
1017 previous_line = NULL;
1018 current_line = es->first_line_def;
1019
1020 /* Find starting line. istart must lie inside an existing line or
1021 * at the end of buffer */
1022 do {
1023 if (istart < current_line->index + current_line->length ||
1024 current_line->ending == END_0)
1025 break;
1026
1027 previous_line = current_line;
1028 current_line = current_line->next;
1029 line_index++;
1030 } while (current_line);
1031
1032 if (!current_line) /* Error occurred start is not inside previous buffer */
1033 {
1034 FIXME(" modification occurred outside buffer\n");
1035 return;
1036 }
1037
1038 /* Remember start of modifications in order to calculate update region */
1039 nstart_line = line_index;
1040 nstart_index = current_line->index;
1041
1042 /* We must start to reformat from the previous line since the modifications
1043 * may have caused the line to wrap upwards. */
1044 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1045 {
1046 line_index--;
1047 current_line = previous_line;
1048 }
1049 start_line = current_line;
1050
1051 fw = es->format_rect.right - es->format_rect.left;
1052 current_position = es->text + current_line->index;
1053 do {
1054 if (current_line != start_line)
1055 {
1056 if (!current_line || current_line->index + delta > current_position - es->text)
1057 {
1058 /* The buffer has been expanded, create a new line and
1059 insert it into the link list */
1060 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1061 new_line->next = previous_line->next;
1062 previous_line->next = new_line;
1063 current_line = new_line;
1064 es->line_count++;
1065 }
1066 else if (current_line->index + delta < current_position - es->text)
1067 {
1068 /* The previous line merged with this line so we delete this extra entry */
1069 previous_line->next = current_line->next;
1070 HeapFree(GetProcessHeap(), 0, current_line);
1071 current_line = previous_line->next;
1072 es->line_count--;
1073 continue;
1074 }
1075 else /* current_line->index + delta == current_position */
1076 {
1077 if (current_position - es->text > iend)
1078 break; /* We reached end of line modifications */
1079 /* else recalulate this line */
1080 }
1081 }
1082
1083 current_line->index = current_position - es->text;
1084 orig_net_length = current_line->net_length;
1085
1086 /* Find end of line */
1087 cp = current_position;
1088 while (*cp) {
1089 if (*cp == '\n') break;
1090 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1091 break;
1092 cp++;
1093 }
1094
1095 /* Mark type of line termination */
1096 if (!(*cp)) {
1097 current_line->ending = END_0;
1098 current_line->net_length = strlenW(current_position);
1099 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1100 current_line->ending = END_SOFT;
1101 current_line->net_length = cp - current_position - 1;
1102 } else if (*cp == '\n') {
1103 current_line->ending = END_RICH;
1104 current_line->net_length = cp - current_position;
1105 } else {
1106 current_line->ending = END_HARD;
1107 current_line->net_length = cp - current_position;
1108 }
1109
1110 /* Calculate line width */
1111 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1112 current_position, current_line->net_length,
1113 es->tabs_count, es->tabs));
1114
1115 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1116 if ((!(es->style & ES_AUTOHSCROLL)) && (current_line->width > fw)) {
1117 INT next = 0;
1118 INT prev;
1119 do {
1120 prev = next;
1121 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1122 prev + 1, current_line->net_length, WB_RIGHT);
1123 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1124 current_position, next, es->tabs_count, es->tabs));
1125 } while (current_line->width <= fw);
1126 if (!prev) { /* Didn't find a line break so force a break */
1127 next = 0;
1128 do {
1129 prev = next;
1130 next++;
1131 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1132 current_position, next, es->tabs_count, es->tabs));
1133 } while (current_line->width <= fw);
1134 if (!prev)
1135 prev = 1;
1136 }
1137
1138 /* If the first line we are calculating, wrapped before istart, we must
1139 * adjust istart in order for this to be reflected in the update region. */
1140 if (current_line->index == nstart_index && istart > current_line->index + prev)
1141 istart = current_line->index + prev;
1142 /* else if we are updating the previous line before the first line we
1143 * are re-calculating and it expanded */
1144 else if (current_line == start_line &&
1145 current_line->index != nstart_index && orig_net_length < prev)
1146 {
1147 /* Line expanded due to an upwards line wrap so we must partially include
1148 * previous line in update region */
1149 nstart_line = line_index;
1150 nstart_index = current_line->index;
1151 istart = current_line->index + orig_net_length;
1152 }
1153
1154 current_line->net_length = prev;
1155 current_line->ending = END_WRAP;
1156 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1157 current_line->net_length, es->tabs_count, es->tabs));
1158 }
1159
1160
1161 /* Adjust length to include line termination */
1162 switch (current_line->ending) {
1163 case END_SOFT:
1164 current_line->length = current_line->net_length + 3;
1165 break;
1166 case END_RICH:
1167 current_line->length = current_line->net_length + 1;
1168 break;
1169 case END_HARD:
1170 current_line->length = current_line->net_length + 2;
1171 break;
1172 case END_WRAP:
1173 case END_0:
1174 current_line->length = current_line->net_length;
1175 break;
1176 }
1177 es->text_width = max(es->text_width, current_line->width);
1178 current_position += current_line->length;
1179 previous_line = current_line;
1180 current_line = current_line->next;
1181 line_index++;
1182 } while (previous_line->ending != END_0);
1183
1184 /* Finish adjusting line indexes by delta or remove hanging lines */
1185 if (previous_line->ending == END_0)
1186 {
1187 LINEDEF *pnext = NULL;
1188
1189 previous_line->next = NULL;
1190 while (current_line)
1191 {
1192 pnext = current_line->next;
1193 HeapFree(GetProcessHeap(), 0, current_line);
1194 current_line = pnext;
1195 es->line_count--;
1196 }
1197 }
1198 else
1199 {
1200 while (current_line)
1201 {
1202 current_line->index += delta;
1203 current_line = current_line->next;
1204 }
1205 }
1206
1207 /* Calculate rest of modification rectangle */
1208 if (hrgn)
1209 {
1210 HRGN tmphrgn;
1211 /*
1212 * We calculate two rectangles. One for the first line which may have
1213 * an indent with respect to the format rect. The other is a format-width
1214 * rectangle that spans the rest of the lines that changed or moved.
1215 */
1216 rc.top = es->format_rect.top + nstart_line * es->line_height -
1217 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1218 rc.bottom = rc.top + es->line_height;
1219 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1220 es->text + nstart_index, istart - nstart_index,
1221 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1222 rc.right = es->format_rect.right;
1223 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1224
1225 rc.top = rc.bottom;
1226 rc.left = es->format_rect.left;
1227 rc.right = es->format_rect.right;
1228 /*
1229 * If lines were added or removed we must re-paint the remainder of the
1230 * lines since the remaining lines were either shifted up or down.
1231 */
1232 if (line_count < es->line_count) /* We added lines */
1233 rc.bottom = es->line_count * es->line_height;
1234 else if (line_count > es->line_count) /* We removed lines */
1235 rc.bottom = line_count * es->line_height;
1236 else
1237 rc.bottom = line_index * es->line_height;
1238 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1239 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1240 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1241 DeleteObject(tmphrgn);
1242 }
1243
1244 if (es->font)
1245 SelectObject(dc, old_font);
1246
1247 ReleaseDC(es->hwndSelf, dc);
1248 }
1249
1250 /*********************************************************************
1251 *
1252 * EDIT_CalcLineWidth_SL
1253 *
1254 */
1255 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1256 {
1257 es->text_width = SLOWORD(EDIT_EM_PosFromChar(es, strlenW(es->text), FALSE));
1258 }
1259
1260 /*********************************************************************
1261 *
1262 * EDIT_CallWordBreakProc
1263 *
1264 * Call appropriate WordBreakProc (internal or external).
1265 *
1266 * Note: The "start" argument should always be an index referring
1267 * to es->text. The actual wordbreak proc might be
1268 * 16 bit, so we can't always pass any 32 bit LPSTR.
1269 * Hence we assume that es->text is the buffer that holds
1270 * the string under examination (we can decide this for ourselves).
1271 *
1272 */
1273 /* ### start build ### */
1274 extern WORD CALLBACK EDIT_CallTo16_word_lwww(EDITWORDBREAKPROC16,SEGPTR,WORD,WORD,WORD);
1275 /* ### stop build ### */
1276 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1277 {
1278 INT ret, iWndsLocks;
1279
1280 /* To avoid any deadlocks, all the locks on the window structures
1281 must be suspended before the control is passed to the application */
1282 iWndsLocks = WIN_SuspendWndsLock();
1283
1284 if (es->word_break_proc16) {
1285 HGLOBAL16 hglob16;
1286 SEGPTR segptr;
1287 INT countA;
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 ret = (INT)EDIT_CallTo16_word_lwww(es->word_break_proc16,
1294 segptr, index, countA, action);
1295 GlobalUnlock16(hglob16);
1296 GlobalFree16(hglob16);
1297 }
1298 else if (es->word_break_proc)
1299 {
1300 if(es->is_unicode)
1301 {
1302 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1303
1304 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1305 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1306 ret = wbpW(es->text + start, index, count, action);
1307 }
1308 else
1309 {
1310 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1311 INT countA;
1312 CHAR *textA;
1313
1314 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1315 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1316 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1317 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1318 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1319 ret = wbpA(textA, index, countA, action);
1320 HeapFree(GetProcessHeap(), 0, textA);
1321 }
1322 }
1323 else
1324 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1325
1326 WIN_RestoreWndsLock(iWndsLocks);
1327 return ret;
1328 }
1329
1330
1331 /*********************************************************************
1332 *
1333 * EDIT_CharFromPos
1334 *
1335 * Beware: This is not the function called on EM_CHARFROMPOS
1336 * The position _can_ be outside the formatting / client
1337 * rectangle
1338 * The return value is only the character index
1339 *
1340 */
1341 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1342 {
1343 INT index;
1344 HDC dc;
1345 HFONT old_font = 0;
1346
1347 if (es->style & ES_MULTILINE) {
1348 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1349 INT line_index = 0;
1350 LINEDEF *line_def = es->first_line_def;
1351 INT low, high;
1352 while ((line > 0) && line_def->next) {
1353 line_index += line_def->length;
1354 line_def = line_def->next;
1355 line--;
1356 }
1357 x += es->x_offset - es->format_rect.left;
1358 if (x >= line_def->width) {
1359 if (after_wrap)
1360 *after_wrap = (line_def->ending == END_WRAP);
1361 return line_index + line_def->net_length;
1362 }
1363 if (x <= 0) {
1364 if (after_wrap)
1365 *after_wrap = FALSE;
1366 return line_index;
1367 }
1368 dc = GetDC(es->hwndSelf);
1369 if (es->font)
1370 old_font = SelectObject(dc, es->font);
1371 low = line_index + 1;
1372 high = line_index + line_def->net_length + 1;
1373 while (low < high - 1)
1374 {
1375 INT mid = (low + high) / 2;
1376 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1377 else low = mid;
1378 }
1379 index = low;
1380
1381 if (after_wrap)
1382 *after_wrap = ((index == line_index + line_def->net_length) &&
1383 (line_def->ending == END_WRAP));
1384 } else {
1385 LPWSTR text;
1386 SIZE size;
1387 if (after_wrap)
1388 *after_wrap = FALSE;
1389 x -= es->format_rect.left;
1390 if (!x)
1391 return es->x_offset;
1392 text = EDIT_GetPasswordPointer_SL(es);
1393 dc = GetDC(es->hwndSelf);
1394 if (es->font)
1395 old_font = SelectObject(dc, es->font);
1396 if (x < 0)
1397 {
1398 INT low = 0;
1399 INT high = es->x_offset;
1400 while (low < high - 1)
1401 {
1402 INT mid = (low + high) / 2;
1403 GetTextExtentPoint32W( dc, text + mid,
1404 es->x_offset - mid, &size );
1405 if (size.cx > -x) low = mid;
1406 else high = mid;
1407 }
1408 index = low;
1409 }
1410 else
1411 {
1412 INT low = es->x_offset;
1413 INT high = strlenW(es->text) + 1;
1414 while (low < high - 1)
1415 {
1416 INT mid = (low + high) / 2;
1417 GetTextExtentPoint32W( dc, text + es->x_offset,
1418 mid - es->x_offset, &size );
1419 if (size.cx > x) high = mid;
1420 else low = mid;
1421 }
1422 index = low;
1423 }
1424 if (es->style & ES_PASSWORD)
1425 HeapFree(GetProcessHeap(), 0, text);
1426 }
1427 if (es->font)
1428 SelectObject(dc, old_font);
1429 ReleaseDC(es->hwndSelf, dc);
1430 return index;
1431 }
1432
1433
1434 /*********************************************************************
1435 *
1436 * EDIT_ConfinePoint
1437 *
1438 * adjusts the point to be within the formatting rectangle
1439 * (so CharFromPos returns the nearest _visible_ character)
1440 *
1441 */
1442 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1443 {
1444 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1445 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1446 }
1447
1448
1449 /*********************************************************************
1450 *
1451 * EDIT_GetLineRect
1452 *
1453 * Calculates the bounding rectangle for a line from a starting
1454 * column to an ending column.
1455 *
1456 */
1457 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1458 {
1459 INT line_index = EDIT_EM_LineIndex(es, line);
1460
1461 if (es->style & ES_MULTILINE)
1462 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1463 else
1464 rc->top = es->format_rect.top;
1465 rc->bottom = rc->top + es->line_height;
1466 rc->left = (scol == 0) ? es->format_rect.left : SLOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1467 rc->right = (ecol == -1) ? es->format_rect.right : SLOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1468 }
1469
1470
1471 /*********************************************************************
1472 *
1473 * EDIT_GetPasswordPointer_SL
1474 *
1475 * note: caller should free the (optionally) allocated buffer
1476 *
1477 */
1478 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1479 {
1480 if (es->style & ES_PASSWORD) {
1481 INT len = strlenW(es->text);
1482 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1483 text[len] = '\0';
1484 while(len) text[--len] = es->password_char;
1485 return text;
1486 } else
1487 return es->text;
1488 }
1489
1490
1491 /*********************************************************************
1492 *
1493 * EDIT_LockBuffer
1494 *
1495 * This acts as a LOCAL_Lock(), but it locks only once. This way
1496 * you can call it whenever you like, without unlocking.
1497 *
1498 * Initially the edit control allocates a HLOCAL32 buffer
1499 * (32 bit linear memory handler). However, 16 bit application
1500 * might send a EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1501 * handler). From that moment on we have to keep using this 16 bit memory
1502 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1503 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1504 * conversion.
1505 *
1506 */
1507 static void EDIT_LockBuffer(EDITSTATE *es)
1508 {
1509 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
1510 if (!es->text) {
1511 CHAR *textA = NULL;
1512 UINT countA = 0;
1513 BOOL _16bit = FALSE;
1514
1515 if(es->hloc32W)
1516 {
1517 if(es->hloc32A)
1518 {
1519 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1520 textA = LocalLock(es->hloc32A);
1521 countA = strlen(textA) + 1;
1522 }
1523 else if(es->hloc16)
1524 {
1525 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1526 textA = LOCAL_Lock(hInstance, es->hloc16);
1527 countA = strlen(textA) + 1;
1528 _16bit = TRUE;
1529 }
1530 }
1531 else {
1532 ERR("no buffer ... please report\n");
1533 return;
1534 }
1535
1536 if(textA)
1537 {
1538 HLOCAL hloc32W_new;
1539 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1540 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1541 if(countW_new > es->buffer_size + 1)
1542 {
1543 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1544 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1545 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1546 if(hloc32W_new)
1547 {
1548 es->hloc32W = hloc32W_new;
1549 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1550 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1551 }
1552 else
1553 WARN("FAILED! Will synchronize partially\n");
1554 }
1555 }
1556
1557 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1558 es->text = LocalLock(es->hloc32W);
1559
1560 if(textA)
1561 {
1562 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1563 if(_16bit)
1564 LOCAL_Unlock(hInstance, es->hloc16);
1565 else
1566 LocalUnlock(es->hloc32A);
1567 }
1568 }
1569 es->lock_count++;
1570 }
1571
1572
1573 /*********************************************************************
1574 *
1575 * EDIT_SL_InvalidateText
1576 *
1577 * Called from EDIT_InvalidateText().
1578 * Does the job for single-line controls only.
1579 *
1580 */
1581 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1582 {
1583 RECT line_rect;
1584 RECT rc;
1585
1586 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1587 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1588 EDIT_UpdateText(es, &rc, TRUE);
1589 }
1590
1591
1592 /*********************************************************************
1593 *
1594 * EDIT_ML_InvalidateText
1595 *
1596 * Called from EDIT_InvalidateText().
1597 * Does the job for multi-line controls only.
1598 *
1599 */
1600 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1601 {
1602 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1603 INT sl = EDIT_EM_LineFromChar(es, start);
1604 INT el = EDIT_EM_LineFromChar(es, end);
1605 INT sc;
1606 INT ec;
1607 RECT rc1;
1608 RECT rcWnd;
1609 RECT rcLine;
1610 RECT rcUpdate;
1611 INT l;
1612
1613 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1614 return;
1615
1616 sc = start - EDIT_EM_LineIndex(es, sl);
1617 ec = end - EDIT_EM_LineIndex(es, el);
1618 if (sl < es->y_offset) {
1619 sl = es->y_offset;
1620 sc = 0;
1621 }
1622 if (el > es->y_offset + vlc) {
1623 el = es->y_offset + vlc;
1624 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1625 }
1626 GetClientRect(es->hwndSelf, &rc1);
1627 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1628 if (sl == el) {
1629 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1630 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1631 EDIT_UpdateText(es, &rcUpdate, TRUE);
1632 } else {
1633 EDIT_GetLineRect(es, sl, sc,
1634 EDIT_EM_LineLength(es,
1635 EDIT_EM_LineIndex(es, sl)),
1636 &rcLine);
1637 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1638 EDIT_UpdateText(es, &rcUpdate, TRUE);
1639 for (l = sl + 1 ; l < el ; l++) {
1640 EDIT_GetLineRect(es, l, 0,
1641 EDIT_EM_LineLength(es,
1642 EDIT_EM_LineIndex(es, l)),
1643 &rcLine);
1644 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1645 EDIT_UpdateText(es, &rcUpdate, TRUE);
1646 }
1647 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1648 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1649 EDIT_UpdateText(es, &rcUpdate, TRUE);
1650 }
1651 }
1652
1653
1654 /*********************************************************************
1655 *
1656 * EDIT_InvalidateText
1657 *
1658 * Invalidate the text from offset start upto, but not including,
1659 * offset end. Useful for (re)painting the selection.
1660 * Regions outside the linewidth are not invalidated.
1661 * end == -1 means end == TextLength.
1662 * start and end need not be ordered.
1663 *
1664 */
1665 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1666 {
1667 if (end == start)
1668 return;
1669
1670 if (end == -1)
1671 end = strlenW(es->text);
1672
1673 if (end < start) {
1674 INT tmp = start;
1675 start = end;
1676 end = tmp;
1677 }
1678
1679 if (es->style & ES_MULTILINE)
1680 EDIT_ML_InvalidateText(es, start, end);
1681 else
1682 EDIT_SL_InvalidateText(es, start, end);
1683 }
1684
1685
1686 /*********************************************************************
1687 *
1688 * EDIT_MakeFit
1689 *
1690 * Try to fit size + 1 characters in the buffer.
1691 * Constrain to limits if honor_limit is TRUE.
1692 */
1693 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size, BOOL honor_limit)
1694 {
1695 HLOCAL hNew32W;
1696
1697 if (size <= es->buffer_size)
1698 return TRUE;
1699
1700 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
1701 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
1702 return FALSE;
1703 }
1704
1705 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1706
1707 /* Force edit to unlock it's buffer. es->text now NULL */
1708 EDIT_UnlockBuffer(es, TRUE);
1709
1710 if (es->hloc32W) {
1711 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1712 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1713 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1714 es->hloc32W = hNew32W;
1715 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1716 }
1717 }
1718
1719 EDIT_LockBuffer(es);
1720
1721 if (es->buffer_size < size) {
1722 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1723 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1724 return FALSE;
1725 } else {
1726 TRACE("We now have %d+1\n", es->buffer_size);
1727 return TRUE;
1728 }
1729 }
1730
1731
1732 /*********************************************************************
1733 *
1734 * EDIT_MakeUndoFit
1735 *
1736 * Try to fit size + 1 bytes in the undo buffer.
1737 *
1738 */
1739 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1740 {
1741 UINT alloc_size;
1742
1743 if (size <= es->undo_buffer_size)
1744 return TRUE;
1745
1746 TRACE("trying to ReAlloc to %d+1\n", size);
1747
1748 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1749 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1750 es->undo_buffer_size = alloc_size/sizeof(WCHAR);
1751 return TRUE;
1752 }
1753 else
1754 {
1755 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1756 return FALSE;
1757 }
1758 }
1759
1760
1761 /*********************************************************************
1762 *
1763 * EDIT_MoveBackward
1764 *
1765 */
1766 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1767 {
1768 INT e = es->selection_end;
1769
1770 if (e) {
1771 e--;
1772 if ((es->style & ES_MULTILINE) && e &&
1773 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1774 e--;
1775 if (e && (es->text[e - 1] == '\r'))
1776 e--;
1777 }
1778 }
1779 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1780 EDIT_EM_ScrollCaret(es);
1781 }
1782
1783
1784 /*********************************************************************
1785 *
1786 * EDIT_MoveDown_ML
1787 *
1788 * Only for multi line controls
1789 * Move the caret one line down, on a column with the nearest
1790 * x coordinate on the screen (might be a different column).
1791 *
1792 */
1793 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1794 {
1795 INT s = es->selection_start;
1796 INT e = es->selection_end;
1797 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1798 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1799 INT x = SLOWORD(pos);
1800 INT y = SHIWORD(pos);
1801
1802 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1803 if (!extend)
1804 s = e;
1805 EDIT_EM_SetSel(es, s, e, after_wrap);
1806 EDIT_EM_ScrollCaret(es);
1807 }
1808
1809
1810 /*********************************************************************
1811 *
1812 * EDIT_MoveEnd
1813 *
1814 */
1815 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1816 {
1817 BOOL after_wrap = FALSE;
1818 INT e;
1819
1820 /* Pass a high value in x to make sure of receiving the end of the line */
1821 if (es->style & ES_MULTILINE)
1822 e = EDIT_CharFromPos(es, 0x3fffffff,
1823 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1824 else
1825 e = strlenW(es->text);
1826 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1827 EDIT_EM_ScrollCaret(es);
1828 }
1829
1830
1831 /*********************************************************************
1832 *
1833 * EDIT_MoveForward
1834 *
1835 */
1836 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1837 {
1838 INT e = es->selection_end;
1839
1840 if (es->text[e]) {
1841 e++;
1842 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1843 if (es->text[e] == '\n')
1844 e++;
1845 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1846 e += 2;
1847 }
1848 }
1849 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1850 EDIT_EM_ScrollCaret(es);
1851 }
1852
1853
1854 /*********************************************************************
1855 *
1856 * EDIT_MoveHome
1857 *
1858 * Home key: move to beginning of line.
1859 *
1860 */
1861 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1862 {
1863 INT e;
1864
1865 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1866 if (es->style & ES_MULTILINE)
1867 e = EDIT_CharFromPos(es, -es->x_offset,
1868 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1869 else
1870 e = 0;
1871 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1872 EDIT_EM_ScrollCaret(es);
1873 }
1874
1875
1876 /*********************************************************************
1877 *
1878 * EDIT_MovePageDown_ML
1879 *
1880 * Only for multi line controls
1881 * Move the caret one page down, on a column with the nearest
1882 * x coordinate on the screen (might be a different column).
1883 *
1884 */
1885 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1886 {
1887 INT s = es->selection_start;
1888 INT e = es->selection_end;
1889 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1890 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1891 INT x = SLOWORD(pos);
1892 INT y = SHIWORD(pos);
1893
1894 e = EDIT_CharFromPos(es, x,
1895 y + (es->format_rect.bottom - es->format_rect.top),
1896 &after_wrap);
1897 if (!extend)
1898 s = e;
1899 EDIT_EM_SetSel(es, s, e, after_wrap);
1900 EDIT_EM_ScrollCaret(es);
1901 }
1902
1903
1904 /*********************************************************************
1905 *
1906 * EDIT_MovePageUp_ML
1907 *
1908 * Only for multi line controls
1909 * Move the caret one page up, on a column with the nearest
1910 * x coordinate on the screen (might be a different column).
1911 *
1912 */
1913 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1914 {
1915 INT s = es->selection_start;
1916 INT e = es->selection_end;
1917 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1918 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1919 INT x = SLOWORD(pos);
1920 INT y = SHIWORD(pos);
1921
1922 e = EDIT_CharFromPos(es, x,
1923 y - (es->format_rect.bottom - es->format_rect.top),
1924 &after_wrap);
1925 if (!extend)
1926 s = e;
1927 EDIT_EM_SetSel(es, s, e, after_wrap);
1928 EDIT_EM_ScrollCaret(es);
1929 }
1930
1931
1932 /*********************************************************************
1933 *
1934 * EDIT_MoveUp_ML
1935 *
1936 * Only for multi line controls
1937 * Move the caret one line up, on a column with the nearest
1938 * x coordinate on the screen (might be a different column).
1939 *
1940 */
1941 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1942 {
1943 INT s = es->selection_start;
1944 INT e = es->selection_end;
1945 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1946 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1947 INT x = SLOWORD(pos);
1948 INT y = SHIWORD(pos);
1949
1950 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1951 if (!extend)
1952 s = e;
1953 EDIT_EM_SetSel(es, s, e, after_wrap);
1954 EDIT_EM_ScrollCaret(es);
1955 }
1956
1957
1958 /*********************************************************************
1959 *
1960 * EDIT_MoveWordBackward
1961 *
1962 */
1963 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1964 {
1965 INT s = es->selection_start;
1966 INT e = es->selection_end;
1967 INT l;
1968 INT ll;
1969 INT li;
1970
1971 l = EDIT_EM_LineFromChar(es, e);
1972 ll = EDIT_EM_LineLength(es, e);
1973 li = EDIT_EM_LineIndex(es, l);
1974 if (e - li == 0) {
1975 if (l) {
1976 li = EDIT_EM_LineIndex(es, l - 1);
1977 e = li + EDIT_EM_LineLength(es, li);
1978 }
1979 } else {
1980 e = li + (INT)EDIT_CallWordBreakProc(es,
1981 li, e - li, ll, WB_LEFT);
1982 }
1983 if (!extend)
1984 s = e;
1985 EDIT_EM_SetSel(es, s, e, FALSE);
1986 EDIT_EM_ScrollCaret(es);
1987 }
1988
1989
1990 /*********************************************************************
1991 *
1992 * EDIT_MoveWordForward
1993 *
1994 */
1995 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
1996 {
1997 INT s = es->selection_start;
1998 INT e = es->selection_end;
1999 INT l;
2000 INT ll;
2001 INT li;
2002
2003 l = EDIT_EM_LineFromChar(es, e);
2004 ll = EDIT_EM_LineLength(es, e);
2005 li = EDIT_EM_LineIndex(es, l);
2006 if (e - li == ll) {
2007 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2008 e = EDIT_EM_LineIndex(es, l + 1);
2009 } else {
2010 e = li + EDIT_CallWordBreakProc(es,
2011 li, e - li + 1, ll, WB_RIGHT);
2012 }
2013 if (!extend)
2014 s = e;
2015 EDIT_EM_SetSel(es, s, e, FALSE);
2016 EDIT_EM_ScrollCaret(es);
2017 }
2018
2019
2020 /*********************************************************************
2021 *
2022 * EDIT_PaintLine
2023 *
2024 */
2025 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2026 {
2027 INT s = es->selection_start;
2028 INT e = es->selection_end;
2029 INT li;
2030 INT ll;
2031 INT x;
2032 INT y;
2033 LRESULT pos;
2034
2035 if (es->style & ES_MULTILINE) {
2036 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2037 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2038 return;
2039 } else if (line)
2040 return;
2041
2042 TRACE("line=%d\n", line);
2043
2044 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2045 x = SLOWORD(pos);
2046 y = SHIWORD(pos);
2047 li = EDIT_EM_LineIndex(es, line);
2048 ll = EDIT_EM_LineLength(es, li);
2049 s = min(es->selection_start, es->selection_end);
2050 e = max(es->selection_start, es->selection_end);
2051 s = min(li + ll, max(li, s));
2052 e = min(li + ll, max(li, e));
2053 if (rev && (s != e) &&
2054 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2055 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2056 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2057 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2058 } else
2059 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2060 }
2061
2062
2063 /*********************************************************************
2064 *
2065 * EDIT_PaintText
2066 *
2067 */
2068 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2069 {
2070 COLORREF BkColor;
2071 COLORREF TextColor;
2072 INT ret;
2073 INT li;
2074 INT BkMode;
2075 SIZE size;
2076
2077 if (!count)
2078 return 0;
2079 BkMode = GetBkMode(dc);
2080 BkColor = GetBkColor(dc);
2081 TextColor = GetTextColor(dc);
2082 if (rev) {
2083 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2084 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2085 SetBkMode( dc, OPAQUE);
2086 }
2087 li = EDIT_EM_LineIndex(es, line);
2088 if (es->style & ES_MULTILINE) {
2089 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2090 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2091 } else {
2092 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2093 TextOutW(dc, x, y, text + li + col, count);
2094 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2095 ret = size.cx;
2096 if (es->style & ES_PASSWORD)
2097 HeapFree(GetProcessHeap(), 0, text);
2098 }
2099 if (rev) {
2100 SetBkColor(dc, BkColor);
2101 SetTextColor(dc, TextColor);
2102 SetBkMode( dc, BkMode);
2103 }
2104 return ret;
2105 }
2106
2107
2108 /*********************************************************************
2109 *
2110 * EDIT_SetCaretPos
2111 *
2112 */
2113 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2114 BOOL after_wrap)
2115 {
2116 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2117 SetCaretPos(SLOWORD(res), SHIWORD(res));
2118 }
2119
2120
2121 /*********************************************************************
2122 *
2123 * EDIT_SetRectNP
2124 *
2125 * note: this is not (exactly) the handler called on EM_SETRECTNP
2126 * it is also used to set the rect of a single line control
2127 *
2128 */
2129 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2130 {
2131 CopyRect(&es->format_rect, rc);
2132 if (es->style & WS_BORDER) {
2133 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2134 if(TWEAK_WineLook == WIN31_LOOK)
2135 bw += 2;
2136 es->format_rect.left += bw;
2137 es->format_rect.top += bw;
2138 es->format_rect.right -= bw;
2139 es->format_rect.bottom -= bw;
2140 }
2141 es->format_rect.left += es->left_margin;
2142 es->format_rect.right -= es->right_margin;
2143 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2144 if (es->style & ES_MULTILINE)
2145 {
2146 INT fw, vlc, max_x_offset, max_y_offset;
2147
2148 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2149 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2150
2151 /* correct es->x_offset */
2152 fw = es->format_rect.right - es->format_rect.left;
2153 max_x_offset = es->text_width - fw;
2154 if(max_x_offset < 0) max_x_offset = 0;
2155 if(es->x_offset > max_x_offset)
2156 es->x_offset = max_x_offset;
2157
2158 /* correct es->y_offset */
2159 max_y_offset = es->line_count - vlc;
2160 if(max_y_offset < 0) max_y_offset = 0;
2161 if(es->y_offset > max_y_offset)
2162 es->y_offset = max_y_offset;
2163
2164 /* force scroll info update */
2165 EDIT_UpdateScrollInfo(es);
2166 }
2167 else
2168 /* Windows doesn't care to fix text placement for SL controls */
2169 es->format_rect.bottom = es->format_rect.top + es->line_height;
2170
2171 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2172 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2173 }
2174
2175
2176 /*********************************************************************
2177 *
2178 * EDIT_UnlockBuffer
2179 *
2180 */
2181 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2182 {
2183 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2184
2185 /* Edit window might be already destroyed */
2186 if(!IsWindow(es->hwndSelf))
2187 {
2188 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2189 return;
2190 }
2191
2192 if (!es->lock_count) {
2193 ERR("lock_count == 0 ... please report\n");
2194 return;
2195 }
2196 if (!es->text) {
2197 ERR("es->text == 0 ... please report\n");
2198 return;
2199 }
2200
2201 if (force || (es->lock_count == 1)) {
2202 if (es->hloc32W) {
2203 CHAR *textA = NULL;
2204 BOOL _16bit = FALSE;
2205 UINT countA = 0;
2206 UINT countW = strlenW(es->text) + 1;
2207
2208 if(es->hloc32A)
2209 {
2210 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2211 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2212 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2213 countA = LocalSize(es->hloc32A);
2214 if(countA_new > countA)
2215 {
2216 HLOCAL hloc32A_new;
2217 UINT alloc_size = ROUND_TO_GROW(countA_new);
2218 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2219 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2220 if(hloc32A_new)
2221 {
2222 es->hloc32A = hloc32A_new;
2223 countA = LocalSize(hloc32A_new);
2224 TRACE("Real new size %d bytes\n", countA);
2225 }
2226 else
2227 WARN("FAILED! Will synchronize partially\n");
2228 }
2229 textA = LocalLock(es->hloc32A);
2230 }
2231 else if(es->hloc16)
2232 {
2233 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2234 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2235 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2236 countA = LOCAL_Size(hInstance, es->hloc16);
2237 if(countA_new > countA)
2238 {
2239 HLOCAL16 hloc16_new;
2240 UINT alloc_size = ROUND_TO_GROW(countA_new);
2241 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2242 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2243 if(hloc16_new)
2244 {
2245 es->hloc16 = hloc16_new;
2246 countA = LOCAL_Size(hInstance, hloc16_new);
2247 TRACE("Real new size %d bytes\n", countA);
2248 }
2249 else
2250 WARN("FAILED! Will synchronize partially\n");
2251 }
2252 textA = LOCAL_Lock(hInstance, es->hloc16);
2253 _16bit = TRUE;
2254 }
2255
2256 if(textA)
2257 {
2258 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2259 if(_16bit)
2260 LOCAL_Unlock(hInstance, es->hloc16);
2261 else
2262 LocalUnlock(es->hloc32A);
2263 }
2264
2265 LocalUnlock(es->hloc32W);
2266 es->text = NULL;
2267 }
2268 else {
2269 ERR("no buffer ... please report\n");
2270 return;
2271 }
2272 }
2273 es->lock_count--;
2274 }
2275
2276
2277 /*********************************************************************
2278 *
2279 * EDIT_UpdateScrollInfo
2280 *
2281 */
2282 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2283 {
2284 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2285 {
2286 SCROLLINFO si;
2287 si.cbSize = sizeof(SCROLLINFO);
2288 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2289 si.nMin = 0;
2290 si.nMax = es->line_count - 1;
2291 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2292 si.nPos = es->y_offset;
2293 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2294 si.nMin, si.nMax, si.nPage, si.nPos);
2295 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2296 }
2297
2298 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2299 {
2300 SCROLLINFO si;
2301 si.cbSize = sizeof(SCROLLINFO);
2302 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2303 si.nMin = 0;
2304 si.nMax = es->text_width - 1;
2305 si.nPage = es->format_rect.right - es->format_rect.left;
2306 si.nPos = es->x_offset;
2307 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2308 si.nMin, si.nMax, si.nPage, si.nPos);
2309 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2310 }
2311 }
2312
2313 /*********************************************************************
2314 *
2315 * EDIT_WordBreakProc
2316 *
2317 * Find the beginning of words.
2318 * Note: unlike the specs for a WordBreakProc, this function only
2319 * allows to be called without linebreaks between s[0] upto
2320 * s[count - 1]. Remember it is only called
2321 * internally, so we can decide this for ourselves.
2322 *
2323 */
2324 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2325 {
2326 INT ret = 0;
2327
2328 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2329
2330 if(!s) return 0;
2331
2332 switch (action) {
2333 case WB_LEFT:
2334 if (!count)
2335 break;
2336 if (index)
2337 index--;
2338 if (s[index] == ' ') {
2339 while (index && (s[index] == ' '))
2340 index--;
2341 if (index) {
2342 while (index && (s[index] != ' '))
2343 index--;
2344 if (s[index] == ' ')
2345 index++;
2346 }
2347 } else {
2348 while (index && (s[index] != ' '))
2349 index--;
2350 if (s[index] == ' ')
2351 index++;
2352 }
2353 ret = index;
2354 break;
2355 case WB_RIGHT:
2356 if (!count)
2357 break;
2358 if (index)
2359 index--;
2360 if (s[index] == ' ')
2361 while ((index < count) && (s[index] == ' ')) index++;
2362 else {
2363 while (s[index] && (s[index] != ' ') && (index < count))
2364 index++;
2365 while ((s[index] == ' ') && (index < count)) index++;
2366 }
2367 ret = index;
2368 break;
2369 case WB_ISDELIMITER:
2370 ret = (s[index] == ' ');
2371 break;
2372 default:
2373 ERR("unknown action code, please report !\n");
2374 break;
2375 }
2376 return ret;
2377 }
2378
2379
2380 /*********************************************************************
2381 *
2382 * EM_CHARFROMPOS
2383 *
2384 * returns line number (not index) in high-order word of result.
2385 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2386 * to Richedit, not to the edit control. Original documentation is valid.
2387 * FIXME: do the specs mean to return -1 if outside client area or
2388 * if outside formatting rectangle ???
2389 *
2390 */
2391 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2392 {
2393 POINT pt;
2394 RECT rc;
2395 INT index;
2396
2397 pt.x = x;
2398 pt.y = y;
2399 GetClientRect(es->hwndSelf, &rc);
2400 if (!PtInRect(&rc, pt))
2401 return -1;
2402
2403 index = EDIT_CharFromPos(es, x, y, NULL);
2404 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2405 }
2406
2407
2408 /*********************************************************************
2409 *
2410 * EM_FMTLINES
2411 *
2412 * Enable or disable soft breaks.
2413 *
2414 * This means: insert or remove the soft linebreak character (\r\r\n).
2415 * Take care to check if the text still fits the buffer after insertion.
2416 * If not, notify with EN_ERRSPACE.
2417 *
2418 */
2419 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2420 {
2421 es->flags &= ~EF_USE_SOFTBRK;
2422 if (add_eol) {
2423 es->flags |= EF_USE_SOFTBRK;
2424 FIXME("soft break enabled, not implemented\n");
2425 }
2426 return add_eol;
2427 }
2428
2429
2430 /*********************************************************************
2431 *
2432 * EM_GETHANDLE
2433 *
2434 * Hopefully this won't fire back at us.
2435 * We always start with a fixed buffer in the local heap.
2436 * Despite of the documentation says that the local heap is used
2437 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2438 * buffer on the local heap.
2439 *
2440 */
2441 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2442 {
2443 HLOCAL hLocal;
2444
2445 if (!(es->style & ES_MULTILINE))
2446 return 0;
2447
2448 if(es->is_unicode)
2449 hLocal = es->hloc32W;
2450 else
2451 {
2452 if(!es->hloc32A)
2453 {
2454 CHAR *textA;
2455 UINT countA, alloc_size;
2456 TRACE("Allocating 32-bit ANSI alias buffer\n");
2457 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2458 alloc_size = ROUND_TO_GROW(countA);
2459 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2460 {
2461 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2462 return 0;
2463 }
2464 textA = LocalLock(es->hloc32A);
2465 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2466 LocalUnlock(es->hloc32A);
2467 }
2468 hLocal = es->hloc32A;
2469 }
2470
2471 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2472 return hLocal;
2473 }
2474
2475
2476 /*********************************************************************
2477 *
2478 * EM_GETHANDLE16
2479 *
2480 * Hopefully this won't fire back at us.
2481 * We always start with a buffer in 32 bit linear memory.
2482 * However, with this message a 16 bit application requests
2483 * a handle of 16 bit local heap memory, where it expects to find
2484 * the text.
2485 * It's a pitty that from this moment on we have to use this
2486 * local heap, because applications may rely on the handle
2487 * in the future.
2488 *
2489 * In this function we'll try to switch to local heap.
2490 */
2491 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2492 {
2493 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2494 CHAR *textA;
2495 UINT countA, alloc_size;
2496
2497 if (!(es->style & ES_MULTILINE))
2498 return 0;
2499
2500 if (es->hloc16)
2501 return es->hloc16;
2502
2503 if (!LOCAL_HeapSize(hInstance)) {
2504 if (!LocalInit16(hInstance, 0,
2505 GlobalSize16(hInstance))) {
2506 ERR("could not initialize local heap\n");
2507 return 0;
2508 }
2509 TRACE("local heap initialized\n");
2510 }
2511
2512 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2513 alloc_size = ROUND_TO_GROW(countA);
2514
2515 TRACE("Allocating 16-bit ANSI alias buffer\n");
2516 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2517 ERR("could not allocate new 16 bit buffer\n");
2518 return 0;
2519 }
2520
2521 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2522 ERR("could not lock new 16 bit buffer\n");
2523 LOCAL_Free(hInstance, es->hloc16);
2524 es->hloc16 = 0;
2525 return 0;
2526 }
2527
2528 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2529 LOCAL_Unlock(hInstance, es->hloc16);
2530
2531 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2532 return es->hloc16;
2533 }
2534
2535
2536 /*********************************************************************
2537 *
2538 * EM_GETLINE
2539 *
2540 */
2541 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2542 {
2543 LPWSTR src;
2544 INT line_len, dst_len;
2545 INT i;
2546
2547 if (es->style & ES_MULTILINE) {
2548 if (line >= es->line_count)
2549 return 0;
2550 } else
2551 line = 0;
2552 i = EDIT_EM_LineIndex(es, line);
2553 src = es->text + i;
2554 line_len = EDIT_EM_LineLength(es, i);
2555 dst_len = *(WORD *)lParam;
2556 if(unicode)
2557 {
2558 LPWSTR dst = (LPWSTR)lParam;
2559 if(dst_len <= line_len)
2560 {
2561 memcpy(dst, src, dst_len * sizeof(WCHAR));
2562 return dst_len;
2563 }
2564 else /* Append 0 if enough space */
2565 {
2566 memcpy(dst, src, line_len * sizeof(WCHAR));
2567 dst[line_len] = 0;
2568 return line_len;
2569 }
2570 }
2571 else
2572 {
2573 LPSTR dst = (LPSTR)lParam;
2574 INT ret;
2575 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2576 if(!ret) /* Insufficient buffer size */
2577 return dst_len;
2578 if(ret < dst_len) /* Append 0 if enough space */
2579 dst[ret] = 0;
2580 return ret;
2581 }
2582 }
2583
2584
2585 /*********************************************************************
2586 *
2587 * EM_GETSEL
2588 *
2589 */
2590 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2591 {
2592 UINT s = es->selection_start;
2593 UINT e = es->selection_end;
2594
2595 ORDER_UINT(s, e);
2596 if (start)
2597 *start = s;
2598 if (end)
2599 *end = e;
2600 return MAKELONG(s, e);
2601 }
2602
2603
2604 /*********************************************************************
2605 *
2606 * EM_GETTHUMB
2607 *
2608 * FIXME: is this right ? (or should it be only VSCROLL)
2609 * (and maybe only for edit controls that really have their
2610 * own scrollbars) (and maybe only for multiline controls ?)
2611 * All in all: very poorly documented
2612 *
2613 */
2614 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2615 {
2616 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2617 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2618 }
2619
2620
2621 /*********************************************************************
2622 *
2623 * EM_LINEFROMCHAR
2624 *
2625 */
2626 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2627 {
2628 INT line;
2629 LINEDEF *line_def;
2630
2631 if (!(es->style & ES_MULTILINE))
2632 return 0;
2633 if (index > (INT)strlenW(es->text))
2634 return es->line_count - 1;
2635 if (index == -1)
2636 index = min(es->selection_start, es->selection_end);
2637
2638 line = 0;
2639 line_def = es->first_line_def;
2640 index -= line_def->length;
2641 while ((index >= 0) && line_def->next) {
2642 line++;
2643 line_def = line_def->next;
2644 index -= line_def->length;
2645 }
2646 return line;
2647 }
2648
2649
2650 /*********************************************************************
2651 *
2652 * EM_LINEINDEX
2653 *
2654 */
2655 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2656 {
2657 INT line_index;
2658 LINEDEF *line_def;
2659
2660 if (!(es->style & ES_MULTILINE))
2661 return 0;
2662 if (line >= es->line_count)
2663 return -1;
2664
2665 line_index = 0;
2666 line_def = es->first_line_def;
2667 if (line == -1) {
2668 INT index = es->selection_end - line_def->length;
2669 while ((index >= 0) && line_def->next) {
2670 line_index += line_def->length;
2671 line_def = line_def->next;
2672 index -= line_def->length;
2673 }
2674 } else {
2675 while (line > 0) {
2676 line_index += line_def->length;
2677 line_def = line_def->next;
2678 line--;
2679 }
2680 }
2681 return line_index;
2682 }
2683
2684
2685 /*********************************************************************
2686 *
2687 * EM_LINELENGTH
2688 *
2689 */
2690 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2691 {
2692 LINEDEF *line_def;
2693
2694 if (!(es->style & ES_MULTILINE))
2695 return strlenW(es->text);
2696
2697 if (index == -1) {
2698 /* get the number of remaining non-selected chars of selected lines */
2699 INT32 l; /* line number */
2700 INT32 li; /* index of first char in line */
2701 INT32 count;
2702 l = EDIT_EM_LineFromChar(es, es->selection_start);
2703 /* # chars before start of selection area */
2704 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2705 l = EDIT_EM_LineFromChar(es, es->selection_end);
2706 /* # chars after end of selection */
2707 li = EDIT_EM_LineIndex(es, l);
2708 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2709 return count;
2710 }
2711 line_def = es->first_line_def;
2712 index -= line_def->length;
2713 while ((index >= 0) && line_def->next) {
2714 line_def = line_def->next;
2715 index -= line_def->length;
2716 }
2717 return line_def->net_length;
2718 }
2719
2720
2721 /*********************************************************************
2722 *
2723 * EM_LINESCROLL
2724 *
2725 * NOTE: dx is in average character widths, dy - in lines;
2726 *
2727 */
2728 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2729 {
2730 if (!(es->style & ES_MULTILINE))
2731 return FALSE;
2732
2733 dx *= es->char_width;
2734 return EDIT_EM_LineScroll_internal(es, dx, dy);
2735 }
2736
2737 /*********************************************************************
2738 *
2739 * EDIT_EM_LineScroll_internal
2740 *
2741 * Version of EDIT_EM_LineScroll for internal use.
2742 * It doesn't refuse if ES_MULTILINE is set and assumes that
2743 * dx is in pixels, dy - in lines.
2744 *
2745 */
2746 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2747 {
2748 INT nyoff;
2749 INT x_offset_in_pixels;
2750
2751 if (es->style & ES_MULTILINE)
2752 {
2753 x_offset_in_pixels = es->x_offset;
2754 }
2755 else
2756 {
2757 dy = 0;
2758 x_offset_in_pixels = SLOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2759 }
2760
2761 if (-dx > x_offset_in_pixels)
2762 dx = -x_offset_in_pixels;
2763 if (dx > es->text_width - x_offset_in_pixels)
2764 dx = es->text_width - x_offset_in_pixels;
2765 nyoff = max(0, es->y_offset + dy);
2766 if (nyoff >= es->line_count)
2767 nyoff = es->line_count - 1;
2768 dy = (es->y_offset - nyoff) * es->line_height;
2769 if (dx || dy) {
2770 RECT rc1;
2771 RECT rc;
2772
2773 es->y_offset = nyoff;
2774 if(es->style & ES_MULTILINE)
2775 es->x_offset += dx;
2776 else
2777 es->x_offset += dx / es->char_width;
2778
2779 GetClientRect(es->hwndSelf, &rc1);
2780 IntersectRect(&rc, &rc1, &es->format_rect);
2781 ScrollWindowEx(es->hwndSelf, -dx, dy,
2782 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2783 /* force scroll info update */
2784 EDIT_UpdateScrollInfo(es);
2785 }
2786 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2787 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2788 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2789 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2790 return TRUE;
2791 }
2792
2793
2794 /*********************************************************************
2795 *
2796 * EM_POSFROMCHAR
2797 *
2798 */
2799 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2800 {
2801 INT len = strlenW(es->text);
2802 INT l;
2803 INT li;
2804 INT x;
2805 INT y = 0;
2806 HDC dc;
2807 HFONT old_font = 0;
2808 SIZE size;
2809
2810 index = min(index, len);
2811 dc = GetDC(es->hwndSelf);
2812 if (es->font)
2813 old_font = SelectObject(dc, es->font);
2814 if (es->style & ES_MULTILINE) {
2815 l = EDIT_EM_LineFromChar(es, index);
2816 y = (l - es->y_offset) * es->line_height;
2817 li = EDIT_EM_LineIndex(es, l);
2818 if (after_wrap && (li == index) && l) {
2819 INT l2 = l - 1;
2820 LINEDEF *line_def = es->first_line_def;
2821 while (l2) {
2822 line_def = line_def->next;
2823 l2--;
2824 }
2825 if (line_def->ending == END_WRAP) {
2826 l--;
2827 y -= es->line_height;
2828 li = EDIT_EM_LineIndex(es, l);
2829 }
2830 }
2831 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2832 es->tabs_count, es->tabs)) - es->x_offset;
2833 } else {
2834 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2835 if (index < es->x_offset) {
2836 GetTextExtentPoint32W(dc, text + index,
2837 es->x_offset - index, &size);
2838 x = -size.cx;
2839 } else {
2840 GetTextExtentPoint32W(dc, text + es->x_offset,
2841 index - es->x_offset, &size);
2842 x = size.cx;
2843 }
2844 y = 0;
2845 if (es->style & ES_PASSWORD)
2846 HeapFree(GetProcessHeap(), 0, text);
2847 }
2848 x += es->format_rect.left;
2849 y += es->format_rect.top;
2850 if (es->font)
2851 SelectObject(dc, old_font);
2852 ReleaseDC(es->hwndSelf, dc);
2853 return MAKELONG((INT16)x, (INT16)y);
2854 }
2855
2856
2857 /*********************************************************************
2858 *
2859 * EM_REPLACESEL
2860 *
2861 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2862 *
2863 */
2864 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2865 {
2866 UINT strl = strlenW(lpsz_replace);
2867 UINT tl = strlenW(es->text);
2868 UINT utl;
2869 UINT s;
2870 UINT e;
2871 UINT i;
2872 LPWSTR p;
2873 HRGN hrgn = 0;
2874
2875 TRACE("%s, can_undo %d, send_update %d\n",
2876 debugstr_w(lpsz_replace), can_undo, send_update);
2877
2878 s = es->selection_start;
2879 e = es->selection_end;
2880
2881 if ((s == e) && !strl)
2882 return;
2883
2884 ORDER_UINT(s, e);
2885
2886 if (!EDIT_MakeFit(es, tl - (e - s) + strl, honor_limit))
2887 return;
2888
2889 if (e != s) {
2890 /* there is something to be deleted */
2891 TRACE("deleting stuff.\n");
2892 if (can_undo) {
2893 utl = strlenW(es->undo_text);
2894 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2895 /* undo-buffer is extended to the right */
2896 EDIT_MakeUndoFit(es, utl + e - s);
2897 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
2898 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2899 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2900 /* undo-buffer is extended to the left */
2901 EDIT_MakeUndoFit(es, utl + e - s);
2902 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2903 p[e - s] = p[0];
2904 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2905 p[i] = (es->text + s)[i];
2906 es->undo_position = s;
2907 } else {
2908 /* new undo-buffer */
2909 EDIT_MakeUndoFit(es, e - s);
2910 strncpyW(es->undo_text, es->text + s, e - s + 1);
2911 es->undo_text[e - s] = 0; /* ensure 0 termination */
2912 es->undo_position = s;
2913 }
2914 /* any deletion makes the old insertion-undo invalid */
2915 es->undo_insert_count = 0;
2916 } else
2917 EDIT_EM_EmptyUndoBuffer(es);
2918
2919 /* now delete */
2920 strcpyW(es->text + s, es->text + e);
2921 }
2922 if (strl) {
2923 /* there is an insertion */
2924 if (can_undo) {
2925 if ((s == es->undo_position) ||
2926 ((es->undo_insert_count) &&
2927 (s == es->undo_position + es->undo_insert_count)))
2928 /*
2929 * insertion is new and at delete position or
2930 * an extension to either left or right
2931 */
2932 es->undo_insert_count += strl;
2933 else {
2934 /* new insertion undo */
2935 es->undo_position = s;
2936 es->undo_insert_count = strl;
2937 /* new insertion makes old delete-buffer invalid */
2938 *es->undo_text = '\0';
2939 }
2940 } else
2941 EDIT_EM_EmptyUndoBuffer(es);
2942
2943 /* now insert */
2944 tl = strlenW(es->text);
2945 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));
2946 for (p = es->text + tl ; p >= es->text + s ; p--)
2947 p[strl] = p[0];
2948 for (i = 0 , p = es->text + s ; i < strl ; i++)
2949 p[i] = lpsz_replace[i];
2950 if(es->style & ES_UPPERCASE)
2951 CharUpperBuffW(p, strl);
2952 else if(es->style & ES_LOWERCASE)
2953 CharLowerBuffW(p, strl);
2954 s += strl;
2955 }
2956 if (es->style & ES_MULTILINE)
2957 {
2958 INT s = min(es->selection_start, es->selection_end);
2959
2960 hrgn = CreateRectRgn(0, 0, 0, 0);
2961 EDIT_BuildLineDefs_ML(es, s, s + strl,
2962 strl - abs(es->selection_end - es->selection_start), hrgn);
2963 }
2964 else
2965 EDIT_CalcLineWidth_SL(es);
2966
2967 EDIT_EM_SetSel(es, s, s, FALSE);
2968 es->flags |= EF_MODIFIED;
2969 if (send_update) es->flags |= EF_UPDATE;
2970 EDIT_EM_ScrollCaret(es);
2971
2972 /* force scroll info update */
2973 EDIT_UpdateScrollInfo(es);
2974
2975 if (hrgn)
2976 {
2977 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2978 DeleteObject(hrgn);
2979 }
2980 else
2981 EDIT_UpdateText(es, NULL, TRUE);
2982
2983 if(es->flags & EF_UPDATE)
2984 {
2985 es->flags &= ~EF_UPDATE;
2986 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
2987 }
2988 }
2989
2990
2991 /*********************************************************************
2992 *
2993 * EM_SCROLL
2994 *
2995 */
2996 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
2997 {
2998 INT dy;
2999
3000 if (!(es->style & ES_MULTILINE))
3001 return (LRESULT)FALSE;
3002
3003 dy = 0;
3004
3005 switch (action) {
3006 case SB_LINEUP:
3007 if (es->y_offset)
3008 dy = -1;
3009 break;
3010 case SB_LINEDOWN:
3011 if (es->y_offset < es->line_count - 1)
3012 dy = 1;
3013 break;
3014 case SB_PAGEUP:
3015 if (es->y_offset)
3016 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3017 break;
3018 case SB_PAGEDOWN:
3019 if (es->y_offset < es->line_count - 1)
3020 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3021 break;
3022 default:
3023 return (LRESULT)FALSE;
3024 }
3025 if (dy) {
3026 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3027 /* check if we are going to move too far */
3028 if(es->y_offset + dy > es->line_count - vlc)
3029 dy = es->line_count - vlc - es->y_offset;
3030
3031 /* Notification is done in EDIT_EM_LineScroll */
3032 if(dy)
3033 EDIT_EM_LineScroll(es, 0, dy);
3034 }
3035 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3036 }
3037
3038
3039 /*********************************************************************
3040 *
3041 * EM_SCROLLCARET
3042 *
3043 */
3044 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3045 {
3046 if (es->style & ES_MULTILINE) {
3047 INT l;
3048 INT li;
3049 INT vlc;
3050 INT ww;
3051 INT cw = es->char_width;
3052 INT x;
3053 INT dy = 0;
3054 INT dx = 0;
3055
3056 l = EDIT_EM_LineFromChar(es, es->selection_end);
3057 li = EDIT_EM_LineIndex(es, l);
3058 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3059 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3060 if (l >= es->y_offset + vlc)
3061 dy = l - vlc + 1 - es->y_offset;
3062 if (l < es->y_offset)
3063 dy = l - es->y_offset;
3064 ww = es->format_rect.right - es->format_rect.left;
3065 if (x < es->format_rect.left)
3066 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3067 if (x > es->format_rect.right)
3068 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3069 if (dy || dx)
3070 {
3071 /* check if we are going to move too far */
3072 if(es->x_offset + dx + ww > es->text_width)
3073 dx = es->text_width - ww - es->x_offset;
3074 if(dx || dy)
3075 EDIT_EM_LineScroll_internal(es, dx, dy);
3076 }
3077 } else {
3078 INT x;
3079 INT goal;
3080 INT format_width;
3081
3082 if (!(es->style & ES_AUTOHSCROLL))
3083 return;
3084
3085 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3086 format_width = es->format_rect.right - es->format_rect.left;
3087 if (x < es->format_rect.left) {
3088 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3089 do {
3090 es->x_offset--;
3091 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3092 } while ((x < goal) && es->x_offset);
3093 /* FIXME: use ScrollWindow() somehow to improve performance */
3094 EDIT_UpdateText(es, NULL, TRUE);
3095 } else if (x > es->format_rect.right) {
3096 INT x_last;
3097 INT len = strlenW(es->text);
3098 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3099 do {
3100 es->x_offset++;
3101 x = SLOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3102 x_last = SLOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3103 } while ((x > goal) && (x_last > es->format_rect.right));
3104 /* FIXME: use ScrollWindow() somehow to improve performance */
3105 EDIT_UpdateText(es, NULL, TRUE);
3106 }
3107 }
3108
3109 if(es->flags & EF_FOCUSED)
3110 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3111 }
3112
3113
3114 /*********************************************************************
3115 *
3116 * EM_SETHANDLE
3117 *
3118 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3119 *
3120 */
3121 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3122 {
3123 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3124
3125 if (!(es->style & ES_MULTILINE))
3126 return;
3127
3128 if (!hloc) {
3129 WARN("called with NULL handle\n");
3130 return;
3131 }
3132
3133 EDIT_UnlockBuffer(es, TRUE);
3134
3135 if(es->hloc16)
3136 {
3137 LOCAL_Free(hInstance, es->hloc16);
3138 es->hloc16 = (HLOCAL16)NULL;
3139 }
3140
3141 if(es->is_unicode)
3142 {
3143 if(es->hloc32A)
3144 {
3145 LocalFree(es->hloc32A);
3146 es->hloc32A = NULL;
3147 }
3148 es->hloc32W = hloc;
3149 }
3150 else
3151 {
3152 INT countW, countA;
3153 HLOCAL hloc32W_new;
3154 WCHAR *textW;
3155 CHAR *textA;
3156
3157 countA = LocalSize(hloc);
3158 textA = LocalLock(hloc);
3159 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3160 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3161 {
3162 ERR("Could not allocate new unicode buffer\n");
3163 return;
3164 }
3165 textW = LocalLock(hloc32W_new);
3166 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3167 LocalUnlock(hloc32W_new);
3168 LocalUnlock(hloc);
3169
3170 if(es->hloc32W)
3171 LocalFree(es->hloc32W);
3172
3173 es->hloc32W = hloc32W_new;
3174 es->hloc32A = hloc;
3175 }
3176
3177 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3178
3179 EDIT_LockBuffer(es);
3180
3181 es->x_offset = es->y_offset = 0;
3182 es->selection_start = es->selection_end = 0;
3183 EDIT_EM_EmptyUndoBuffer(es);
3184 es->flags &= ~EF_MODIFIED;
3185 es->flags &= ~EF_UPDATE;
3186 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3187 EDIT_UpdateText(es, NULL, TRUE);
3188 EDIT_EM_ScrollCaret(es);
3189 /* force scroll info update */
3190 EDIT_UpdateScrollInfo(es);
3191 }
3192
3193
3194 /*********************************************************************
3195 *
3196 * EM_SETHANDLE16
3197 *
3198 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3199 *
3200 */
3201 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3202 {
3203 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3204 INT countW, countA;
3205 HLOCAL hloc32W_new;
3206 WCHAR *textW;
3207 CHAR *textA;
3208
3209 if (!(es->style & ES_MULTILINE))
3210 return;
3211
3212 if (!hloc) {
3213 WARN("called with NULL handle\n");
3214 return;
3215 }
3216
3217 EDIT_UnlockBuffer(es, TRUE);
3218
3219 if(es->hloc32A)
3220 {
3221 LocalFree(es->hloc32A);
3222 es->hloc32A = NULL;
3223 }
3224
3225 countA = LOCAL_Size(hInstance, hloc);
3226 textA = LOCAL_Lock(hInstance, hloc);
3227 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3228 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3229 {
3230 ERR("Could not allocate new unicode buffer\n");
3231 return;
3232 }
3233 textW = LocalLock(hloc32W_new);
3234 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3235 LocalUnlock(hloc32W_new);
3236 LOCAL_Unlock(hInstance, hloc);
3237
3238 if(es->hloc32W)
3239 LocalFree(es->hloc32W);
3240
3241 es->hloc32W = hloc32W_new;
3242 es->hloc16 = hloc;
3243
3244 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3245
3246 EDIT_LockBuffer(es);
3247
3248 es->x_offset = es->y_offset = 0;
3249 es->selection_start = es->selection_end = 0;
3250 EDIT_EM_EmptyUndoBuffer(es);
3251 es->flags &= ~EF_MODIFIED;
3252 es->flags &= ~EF_UPDATE;
3253 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3254 EDIT_UpdateText(es, NULL, TRUE);
3255 EDIT_EM_ScrollCaret(es);
3256 /* force scroll info update */
3257 EDIT_UpdateScrollInfo(es);
3258 }
3259
3260
3261 /*********************************************************************
3262 *
3263 * EM_SETLIMITTEXT
3264 *
3265 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3266 * However, the windows version is not complied to yet in all of edit.c
3267 *
3268 * Additionally as the wrapper for RichEdit controls we need larger buffers
3269 * at present -1 will represent nolimit
3270 */
3271 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3272 {
3273 if (limit == 0xFFFFFFFF)
3274 es->buffer_limit = -1;
3275 else if (es->style & ES_MULTILINE) {
3276 if (limit)
3277 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3278 else
3279 es->buffer_limit = BUFLIMIT_MULTI;
3280 } else {
3281 if (limit)
3282 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3283 else
3284 es->buffer_limit = BUFLIMIT_SINGLE;
3285 }
3286 }
3287
3288
3289 /*********************************************************************
3290 *
3291 * EM_SETMARGINS
3292 *
3293 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3294 * action wParam despite what the docs say. EC_USEFONTINFO means one third
3295 * of the char's width, according to the new docs.
3296 *
3297 */
3298 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3299 INT left, INT right)
3300 {
3301 if (action & EC_LEFTMARGIN) {
3302 if (left != EC_USEFONTINFO)
3303 es->left_margin = left;
3304 else
3305 es->left_margin = es->char_width / 3;
3306 }
3307
3308 if (action & EC_RIGHTMARGIN) {
3309 if (right != EC_USEFONTINFO)
3310 es->right_margin = right;
3311 else
3312 es->right_margin = es->char_width / 3;
3313 }
3314 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3315 }
3316
3317
3318 /*********************************************************************
3319 *
3320 * EM_SETPASSWORDCHAR
3321 *
3322 */
3323 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3324 {
3325 LONG style;
3326
3327 if (es->style & ES_MULTILINE)
3328 return;
3329
3330 if (es->password_char == c)
3331 return;
3332
3333 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3334 es->password_char = c;
3335 if (c) {
3336 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3337 es->style |= ES_PASSWORD;
3338 } else {
3339 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3340 es->style &= ~ES_PASSWORD;
3341 }
3342 EDIT_UpdateText(es, NULL, TRUE);
3343 }
3344
3345
3346 /*********************************************************************
3347 *
3348 * EDIT_EM_SetSel
3349 *
3350 * note: unlike the specs say: the order of start and end
3351 * _is_ preserved in Windows. (i.e. start can be > end)
3352 * In other words: this handler is OK
3353 *
3354 */
3355 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3356 {
3357 UINT old_start = es->selection_start;
3358 UINT old_end = es->selection_end;
3359 UINT len = strlenW(es->text);
3360
3361 if (start == (UINT)-1) {
3362 start = es->selection_end;
3363 end = es->selection_end;
3364 } else {
3365 start = min(start, len);
3366 end = min(end, len);
3367 }
3368 es->selection_start = start;
3369 es->selection_end = end;
3370 if (after_wrap)
3371 es->flags |= EF_AFTER_WRAP;
3372 else
3373 es->flags &= ~EF_AFTER_WRAP;
3374 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3375 ORDER_UINT(start, end);
3376 ORDER_UINT(end, old_end);
3377 ORDER_UINT(start, old_start);
3378 ORDER_UINT(old_start, old_end);
3379 if (end != old_start)
3380 {
3381 /*
3382 * One can also do
3383 * ORDER_UINT32(end, old_start);
3384 * EDIT_InvalidateText(es, start, end);
3385 * EDIT_InvalidateText(es, old_start, old_end);
3386 * in place of the following if statement.
3387 */
3388 if (old_start > end )
3389 {
3390 EDIT_InvalidateText(es, start, end);
3391 EDIT_InvalidateText(es, old_start, old_end);
3392 }
3393 else
3394 {
3395 EDIT_InvalidateText(es, start, old_start);
3396 EDIT_InvalidateText(es, end, old_end);
3397 }
3398 }
3399 else EDIT_InvalidateText(es, start, old_end);
3400 }
3401
3402
3403 /*********************************************************************
3404 *
3405 * EM_SETTABSTOPS
3406 *
3407 */
3408 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3409 {
3410 if (!(es->style & ES_MULTILINE))
3411 return FALSE;
3412 if (es->tabs)
3413 HeapFree(GetProcessHeap(), 0, es->tabs);
3414 es->tabs_count = count;
3415 if (!count)
3416 es->tabs = NULL;
3417 else {
3418 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3419 memcpy(es->tabs, tabs, count * sizeof(INT));
3420 }
3421 return TRUE;
3422 }
3423
3424
3425 /*********************************************************************
3426 *
3427 * EM_SETTABSTOPS16
3428 *
3429 */
3430 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3431 {
3432 if (!(es->style & ES_MULTILINE))
3433 return FALSE;
3434 if (es->tabs)
3435 HeapFree(GetProcessHeap(), 0, es->tabs);
3436 es->tabs_count = count;
3437 if (!count)
3438 es->tabs = NULL;
3439 else {
3440 INT i;
3441 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3442 for (i = 0 ; i < count ; i++)
3443 es->tabs[i] = *tabs++;
3444 }
3445 return TRUE;
3446 }
3447
3448
3449 /*********************************************************************
3450 *
3451 * EM_SETWORDBREAKPROC
3452 *
3453 */
3454 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam)
3455 {
3456 if (es->word_break_proc == (void *)lParam)
3457 return;
3458
3459 es->word_break_proc = (void *)lParam;
3460 es->word_break_proc16 = NULL;
3461
3462 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3463 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3464 EDIT_UpdateText(es, NULL, TRUE);
3465 }
3466 }
3467
3468
3469 /*********************************************************************
3470 *
3471 * EM_SETWORDBREAKPROC16
3472 *
3473 */
3474 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3475 {
3476 if (es->word_break_proc16 == wbp)
3477 return;
3478
3479 es->word_break_proc = NULL;
3480 es->word_break_proc16 = wbp;
3481 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3482 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3483 EDIT_UpdateText(es, NULL, TRUE);
3484 }
3485 }
3486
3487
3488 /*********************************************************************
3489 *
3490 * EM_UNDO / WM_UNDO
3491 *
3492 */
3493 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3494 {
3495 INT ulength;
3496 LPWSTR utext;
3497
3498 /* Protect read-only edit control from modification */
3499 if(es->style & ES_READONLY)
3500 return FALSE;
3501
3502 ulength = strlenW(es->undo_text);
3503 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3504
3505 strcpyW(utext, es->undo_text);
3506
3507 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3508 es->undo_insert_count, debugstr_w(utext));
3509
3510 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3511 EDIT_EM_EmptyUndoBuffer(es);
3512 EDIT_EM_ReplaceSel(es, TRUE, utext, FALSE, TRUE);
3513 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3514 /* send the notification after the selection start and end are set */
3515 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3516 EDIT_EM_ScrollCaret(es);
3517 HeapFree(GetProcessHeap(), 0, utext);
3518
3519 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3520 es->undo_insert_count, debugstr_w(es->undo_text));
3521 return TRUE;
3522 }
3523
3524
3525 /*********************************************************************
3526 *
3527 * WM_CHAR
3528 *
3529 */
3530 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3531 {
3532 BOOL control;
3533
3534 /* Protect read-only edit control from modification */
3535 if(es->style & ES_READONLY)
3536 return;
3537
3538 control = GetKeyState(VK_CONTROL) & 0x8000;
3539
3540 switch (c) {
3541 case '\r':
3542 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3543 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3544 break;
3545 case '\n':
3546 if (es->style & ES_MULTILINE) {
3547 if (es->style & ES_READONLY) {
3548 EDIT_MoveHome(es, FALSE);
3549 EDIT_MoveDown_ML(es, FALSE);
3550 } else {
3551 static const WCHAR cr_lfW[] = {'\r','\n',0};
3552 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3553 }
3554 }
3555 break;
3556 case '\t':
3557 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3558 {
3559 static const WCHAR tabW[] = {'\t',0};
3560 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3561 }
3562 break;
3563 case VK_BACK:
3564 if (!(es->style & ES_READONLY) && !control) {
3565 if (es->selection_start != es->selection_end)
3566 EDIT_WM_Clear(es);
3567 else {
3568 /* delete character left of caret */
3569 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3570 EDIT_MoveBackward(es, TRUE);
3571 EDIT_WM_Clear(es);
3572 }
3573 }
3574 break;
3575 case 0x03: /* ^C */
3576 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3577 break;
3578 case 0x16: /* ^V */
3579 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3580 break;
3581 case 0x18: /* ^X */
3582 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3583 break;
3584
3585 default:
3586 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3587 WCHAR str[2];
3588 str[0] = c;
3589 str[1] = '\0';
3590 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3591 }
3592 break;
3593 }
3594 }
3595
3596
3597 /*********************************************************************
3598 *
3599 * WM_COMMAND
3600 *
3601 */
3602 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3603 {
3604 if (code || control)
3605 return;
3606
3607 switch (id) {
3608 case EM_UNDO:
3609 EDIT_EM_Undo(es);
3610 break;
3611 case WM_CUT:
3612 EDIT_WM_Cut(es);
3613 break;
3614 case WM_COPY:
3615 EDIT_WM_Copy(es);
3616 break;
3617 case WM_PASTE:
3618 EDIT_WM_Paste(es);
3619 break;
3620 case WM_CLEAR:
3621 EDIT_WM_Clear(es);
3622 break;
3623 case EM_SETSEL:
3624 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3625 EDIT_EM_ScrollCaret(es);
3626 break;
3627 default:
3628 ERR("unknown menu item, please report\n");
3629 break;
3630 }
3631 }
3632
3633
3634 /*********************************************************************
3635 *
3636 * WM_CONTEXTMENU
3637 *
3638 * Note: the resource files resource/sysres_??.rc cannot define a
3639 * single popup menu. Hence we use a (dummy) menubar
3640 * containing the single popup menu as its first item.
3641 *
3642 * FIXME: the message identifiers have been chosen arbitrarily,
3643 * hence we use MF_BYPOSITION.
3644 * We might as well use the "real" values (anybody knows ?)
3645 * The menu definition is in resources/sysres_??.rc.
3646 * Once these are OK, we better use MF_BYCOMMAND here
3647 * (as we do in EDIT_WM_Command()).
3648 *
3649 */
3650 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3651 {
3652 HMENU menu = LoadMenuA(GetModuleHandleA("USER32"), "EDITMENU");
3653 HMENU popup = GetSubMenu(menu, 0);
3654 UINT start = es->selection_start;
3655 UINT end = es->selection_end;
3656
3657 ORDER_UINT(start, end);
3658
3659 /* undo */
3660 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3661 /* cut */
3662 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3663 /* copy */
3664 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3665 /* paste */
3666 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3667 /* delete */
3668 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3669 /* select all */
3670 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3671
3672 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3673 DestroyMenu(menu);
3674 }
3675
3676
3677 /*********************************************************************
3678 *
3679 * WM_COPY
3680 *
3681 */
3682 static void EDIT_WM_Copy(EDITSTATE *es)
3683 {
3684 INT s = min(es->selection_start, es->selection_end);
3685 INT e = max(es->selection_start, es->selection_end);
3686 HGLOBAL hdst;
3687 LPWSTR dst;
3688
3689 if (e == s) return;
3690
3691 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3692 dst = GlobalLock(hdst);
3693 strncpyW(dst, es->text + s, e - s);
3694 dst[e - s] = 0; /* ensure 0 termination */
3695 TRACE("%s\n", debugstr_w(dst));
3696 GlobalUnlock(hdst);
3697 OpenClipboard(es->hwndSelf);
3698 EmptyClipboard();
3699 SetClipboardData(CF_UNICODETEXT, hdst);
3700 CloseClipboard();
3701 }
3702
3703
3704 /*********************************************************************
3705 *
3706 * WM_CREATE
3707 *
3708 */
3709 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3710 {
3711 TRACE("%s\n", debugstr_w(name));
3712 /*
3713 * To initialize some final structure members, we call some helper
3714 * functions. However, since the EDITSTATE is not consistent (i.e.
3715 * not fully initialized), we should be very careful which
3716 * functions can be called, and in what order.
3717 */
3718 EDIT_WM_SetFont(es, 0, FALSE);
3719 EDIT_EM_EmptyUndoBuffer(es);
3720
3721 if (name && *name) {
3722 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
3723 /* if we insert text to the editline, the text scrolls out
3724 * of the window, as the caret is placed after the insert
3725 * pos normally; thus we reset es->selection... to 0 and
3726 * update caret
3727 */
3728 es->selection_start = es->selection_end = 0;
3729 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
3730 * Messages are only to be sent when the USER does something to
3731 * change the contents. So I am removing this EN_CHANGE
3732 *
3733 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3734 */
3735 EDIT_EM_ScrollCaret(es);
3736 }
3737 /* force scroll info update */
3738 EDIT_UpdateScrollInfo(es);
3739 return 0;
3740 }
3741
3742
3743 /*********************************************************************
3744 *
3745 * WM_DESTROY
3746 *
3747 */
3748 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
3749 {
3750 LINEDEF *pc, *pp;
3751
3752 if (es->hloc32W) {
3753 while (LocalUnlock(es->hloc32W)) ;
3754 LocalFree(es->hloc32W);
3755 }
3756 if (es->hloc32A) {
3757 while (LocalUnlock(es->hloc32A)) ;
3758 LocalFree(es->hloc32A);
3759 }
3760 if (es->hloc16) {
3761 HINSTANCE16 hInstance = GetWindowWord( es->hwndSelf, GWL_HINSTANCE );
3762 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3763 LOCAL_Free(hInstance, es->hloc16);
3764 }
3765
3766 pc = es->first_line_def;
3767 while (pc)
3768 {
3769 pp = pc->next;
3770 HeapFree(GetProcessHeap(), 0, pc);
3771 pc = pp;
3772 }
3773
3774 SetWindowLongW( es->hwndSelf, 0, 0 );
3775 HeapFree(GetProcessHeap(), 0, es);
3776
3777 return 0;
3778 }
3779
3780
3781 /*********************************************************************
3782 *
3783 * WM_ERASEBKGND
3784 *
3785 */
3786 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
3787 {
3788 HBRUSH brush;
3789 RECT rc;
3790
3791 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
3792 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
3793
3794 GetClientRect(es->hwndSelf, &rc);
3795 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3796 GetClipBox(dc, &rc);
3797 /*
3798 * FIXME: specs say that we should UnrealizeObject() the brush,
3799 * but the specs of UnrealizeObject() say that we shouldn't
3800 * unrealize a stock object. The default brush that
3801 * DefWndProc() returns is ... a stock object.
3802 */
3803 FillRect(dc, &rc, brush);
3804 return -1;
3805 }
3806
3807
3808 /*********************************************************************
3809 *
3810 * WM_GETTEXT
3811 *
3812 */
3813 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3814 {
3815 if(!count) return 0;
3816
3817 if(unicode)
3818 {
3819 LPWSTR textW = (LPWSTR)lParam;
3820 lstrcpynW(textW, es->text, count);
3821 return strlenW(textW);
3822 }
3823 else
3824 {
3825 LPSTR textA = (LPSTR)lParam;
3826 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3827 textA[count - 1] = 0; /* ensure 0 termination */
3828 return strlen(textA);
3829 }
3830 }
3831
3832 /*********************************************************************
3833 *
3834 * WM_HSCROLL
3835 *
3836 */
3837 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3838 {
3839 INT dx;
3840 INT fw;
3841
3842 if (!(es->style & ES_MULTILINE))
3843 return 0;
3844
3845 if (!(es->style & ES_AUTOHSCROLL))
3846 return 0;
3847
3848 dx = 0;
3849 fw = es->format_rect.right - es->format_rect.left;
3850 switch (action) {
3851 case SB_LINELEFT:
3852 TRACE("SB_LINELEFT\n");
3853 if (es->x_offset)
3854 dx = -es->char_width;
3855 break;
3856 case SB_LINERIGHT:
3857 TRACE("SB_LINERIGHT\n");
3858 if (es->x_offset < es->text_width)
3859 dx = es->char_width;
3860 break;
3861 case SB_PAGELEFT:
3862 TRACE("SB_PAGELEFT\n");
3863 if (es->x_offset)
3864 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3865 break;
3866 case SB_PAGERIGHT:
3867 TRACE("SB_PAGERIGHT\n");
3868 if (es->x_offset < es->text_width)
3869 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3870 break;
3871 case SB_LEFT:
3872 TRACE("SB_LEFT\n");
3873 if (es->x_offset)
3874 dx = -es->x_offset;
3875 break;
3876 case SB_RIGHT:
3877 TRACE("SB_RIGHT\n");
3878 if (es->x_offset < es->text_width)
3879 dx = es->text_width - es->x_offset;
3880 break;
3881 case SB_THUMBTRACK:
3882 TRACE("SB_THUMBTRACK %d\n", pos);
3883 es->flags |= EF_HSCROLL_TRACK;
3884 if(es->style & WS_HSCROLL)
3885 dx = pos - es->x_offset;
3886 else
3887 {
3888 INT fw, new_x;
3889 /* Sanity check */
3890 if(pos < 0 || pos > 100) return 0;
3891 /* Assume default scroll range 0-100 */
3892 fw = es->format_rect.right - es->format_rect.left;
3893 new_x = pos * (es->text_width - fw) / 100;
3894 dx = es->text_width ? (new_x - es->x_offset) : 0;
3895 }
3896 break;
3897 case SB_THUMBPOSITION:
3898 TRACE("SB_THUMBPOSITION %d\n", pos);
3899 es->flags &= ~EF_HSCROLL_TRACK;
3900 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3901 dx = pos - es->x_offset;
3902 else
3903 {
3904 INT fw, new_x;
3905 /* Sanity check */
3906 if(pos < 0 || pos > 100) return 0;
3907 /* Assume default scroll range 0-100 */
3908 fw = es->format_rect.right - es->format_rect.left;
3909 new_x = pos * (es->text_width - fw) / 100;
3910 dx = es->text_width ? (new_x - es->x_offset) : 0;
3911 }
3912 if (!dx) {
3913 /* force scroll info update */
3914 EDIT_UpdateScrollInfo(es);
3915 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
3916 }
3917 break;
3918 case SB_ENDSCROLL:
3919 TRACE("SB_ENDSCROLL\n");
3920 break;
3921 /*
3922 * FIXME : the next two are undocumented !
3923 * Are we doing the right thing ?
3924 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3925 * although it's also a regular control message.
3926 */
3927 case EM_GETTHUMB: /* this one is used by NT notepad */
3928 case EM_GETTHUMB16:
3929 {
3930 LRESULT ret;
3931 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3932 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3933 else
3934 {
3935 /* Assume default scroll range 0-100 */
3936 INT fw = es->format_rect.right - es->format_rect.left;
3937 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
3938 }
3939 TRACE("EM_GETTHUMB: returning %ld\n", ret);
3940 return ret;
3941 }
3942 case EM_LINESCROLL16:
3943 TRACE("EM_LINESCROLL16\n");
3944 dx = pos;
3945 break;
3946
3947 default:
3948 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
3949 action, action);
3950 return 0;
3951 }
3952 if (dx)
3953 {
3954 INT fw = es->format_rect.right - es->format_rect.left;
3955 /* check if we are going to move too far */
3956 if(es->x_offset + dx + fw > es->text_width)
3957 dx = es->text_width - fw - es->x_offset;
3958 if(dx)
3959 EDIT_EM_LineScroll_internal(es, dx, 0);
3960 }
3961 return 0;
3962 }
3963
3964
3965 /*********************************************************************
3966 *
3967 * EDIT_CheckCombo
3968 *
3969 */
3970 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
3971 {
3972 HWND hLBox = es->hwndListBox;
3973 HWND hCombo;
3974 BOOL bDropped;
3975 int nEUI;
3976
3977 if (!hLBox)
3978 return FALSE;
3979
3980 hCombo = GetParent(es->hwndSelf);
3981 bDropped = TRUE;
3982 nEUI = 0;
3983
3984 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
3985
3986 if (key == VK_UP || key == VK_DOWN)
3987 {
3988 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
3989 nEUI = 1;
3990
3991 if (msg == WM_KEYDOWN || nEUI)
3992 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
3993 }
3994
3995 switch (msg)
3996 {
3997 case WM_KEYDOWN:
3998 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
3999 {
4000 /* make sure ComboLBox pops up */
4001 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4002 key = VK_F4;
4003 nEUI = 2;
4004 }
4005
4006 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4007 break;
4008
4009 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4010 if (nEUI)
4011 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4012 else
4013 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4014 break;
4015 }
4016
4017 if(nEUI == 2)
4018 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4019
4020 return TRUE;
4021 }
4022
4023
4024 /*********************************************************************
4025 *
4026 * WM_KEYDOWN
4027 *
4028 * Handling of special keys that don't produce a WM_CHAR
4029 * (i.e. non-printable keys) & Backspace & Delete
4030 *
4031 */
4032 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4033 {
4034 BOOL shift;
4035 BOOL control;
4036
4037 if (GetKeyState(VK_MENU) & 0x8000)
4038 return 0;
4039
4040 shift = GetKeyState(VK_SHIFT) & 0x8000;
4041 control = GetKeyState(VK_CONTROL) & 0x8000;
4042
4043 switch (key) {
4044 case VK_F4:
4045 case VK_UP:
4046 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4047 break;
4048
4049 /* fall through */
4050 case VK_LEFT:
4051 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4052 EDIT_MoveUp_ML(es, shift);
4053 else
4054 if (control)
4055 EDIT_MoveWordBackward(es, shift);
4056 else
4057 EDIT_MoveBackward(es, shift);
4058 break;
4059 case VK_DOWN:
4060 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4061 break;
4062 /* fall through */
4063 case VK_RIGHT:
4064 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4065 EDIT_MoveDown_ML(es, shift);
4066 else if (control)
4067 EDIT_MoveWordForward(es, shift);
4068 else
4069 EDIT_MoveForward(es, shift);
4070 break;
4071 case VK_HOME:
4072 EDIT_MoveHome(es, shift);
4073 break;
4074 case VK_END:
4075 EDIT_MoveEnd(es, shift);
4076 break;
4077 case VK_PRIOR:
4078 if (es->style & ES_MULTILINE)
4079 EDIT_MovePageUp_ML(es, shift);
4080 else
4081 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4082 break;
4083 case VK_NEXT:
4084 if (es->style & ES_MULTILINE)
4085 EDIT_MovePageDown_ML(es, shift);
4086 else
4087 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4088 break;
4089 case VK_DELETE:
4090 if (!(es->style & ES_READONLY) && !(shift && control)) {
4091 if (es->selection_start != es->selection_end) {
4092 if (shift)
4093 EDIT_WM_Cut(es);
4094 else
4095 EDIT_WM_Clear(es);
4096 } else {
4097 if (shift) {
4098 /* delete character left of caret */
4099 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4100 EDIT_MoveBackward(es, TRUE);
4101 EDIT_WM_Clear(es);
4102 } else if (control) {
4103 /* delete to end of line */
4104 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4105 EDIT_MoveEnd(es, TRUE);
4106 EDIT_WM_Clear(es);
4107 } else {
4108 /* delete character right of caret */
4109 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4110 EDIT_MoveForward(es, TRUE);
4111 EDIT_WM_Clear(es);
4112 }
4113 }
4114 }
4115 break;
4116 case VK_INSERT:
4117 if (shift) {
4118 if (!(es->style & ES_READONLY))
4119 EDIT_WM_Paste(es);
4120 } else if (control)
4121 EDIT_WM_Copy(es);
4122 break;
4123 case VK_RETURN:
4124 /* If the edit doesn't want the return send a message to the default object */
4125 if(!(es->style & ES_WANTRETURN))
4126 {
4127 HWND hwndParent = GetParent(es->hwndSelf);
4128 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4129 if (HIWORD(dw) == DC_HASDEFID)
4130 {
4131 SendMessageW( hwndParent, WM_COMMAND,
4132 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4133 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4134 }
4135 }
4136 break;
4137 }
4138 return 0;
4139 }
4140
4141
4142 /*********************************************************************
4143 *
4144 * WM_KILLFOCUS
4145 *
4146 */
4147 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4148 {
4149 es->flags &= ~EF_FOCUSED;
4150 DestroyCaret();
4151 if(!(es->style & ES_NOHIDESEL))
4152 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4153 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4154 return 0;
4155 }
4156
4157
4158 /*********************************************************************
4159 *
4160 * WM_LBUTTONDBLCLK
4161 *
4162 * The caret position has been set on the WM_LBUTTONDOWN message
4163 *
4164 */
4165 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4166 {
4167 INT s;
4168 INT e = es->selection_end;
4169 INT l;
4170 INT li;
4171 INT ll;
4172
4173 if (!(es->flags & EF_FOCUSED))
4174 return 0;
4175
4176 l = EDIT_EM_LineFromChar(es, e);
4177 li = EDIT_EM_LineIndex(es, l);
4178 ll = EDIT_EM_LineLength(es, e);
4179 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4180 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4181 EDIT_EM_SetSel(es, s, e, FALSE);
4182 EDIT_EM_ScrollCaret(es);
4183 return 0;
4184 }
4185
4186
4187 /*********************************************************************
4188 *
4189 * WM_LBUTTONDOWN
4190 *
4191 */
4192 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4193 {
4194 INT e;
4195 BOOL after_wrap;
4196
4197 if (!(es->flags & EF_FOCUSED))
4198 return 0;
4199
4200 es->bCaptureState = TRUE;
4201 SetCapture(es->hwndSelf);
4202 EDIT_ConfinePoint(es, &x, &y);
4203 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4204 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4205 EDIT_EM_ScrollCaret(es);
4206 es->region_posx = es->region_posy = 0;
4207 SetTimer(es->hwndSelf, 0, 100, NULL);
4208 return 0;
4209 }
4210
4211
4212 /*********************************************************************
4213 *
4214 * WM_LBUTTONUP
4215 *
4216 */
4217 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4218 {
4219 if (es->bCaptureState && GetCapture() == es->hwndSelf) {
4220 KillTimer(es->hwndSelf, 0);
4221 ReleaseCapture();
4222 }
4223 es->bCaptureState = FALSE;
4224 return 0;
4225 }
4226
4227
4228 /*********************************************************************
4229 *
4230 * WM_MBUTTONDOWN
4231 *
4232 */
4233 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4234 {
4235 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4236 return 0;
4237 }
4238
4239
4240 /*********************************************************************
4241 *
4242 * WM_MOUSEMOVE
4243 *
4244 */
4245 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4246 {
4247 INT e;
4248 BOOL after_wrap;
4249 INT prex, prey;
4250
4251 if (GetCapture() != es->hwndSelf)
4252 return 0;
4253
4254 /*
4255 * FIXME: gotta do some scrolling if outside client
4256 * area. Maybe reset the timer ?
4257 */
4258 prex = x; prey = y;
4259 EDIT_ConfinePoint(es, &x, &y);
4260 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4261 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4262 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4263 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4264 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4265 return 0;
4266 }
4267
4268
4269 /*********************************************************************
4270 *
4271 * WM_NCCREATE
4272 *
4273 * See also EDIT_WM_StyleChanged
4274 */
4275 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4276 {
4277 EDITSTATE *es;
4278 UINT alloc_size;
4279
4280 TRACE("Creating %s edit control, style = %08lx\n",
4281 unicode ? "Unicode" : "ANSI", lpcs->style);
4282
4283 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4284 return FALSE;
4285 SetWindowLongW( hwnd, 0, (LONG)es );
4286
4287 /*
4288 * Note: since the EDITSTATE has not been fully initialized yet,
4289 * we can't use any API calls that may send
4290 * WM_XXX messages before WM_NCCREATE is completed.
4291 */
4292
4293 es->is_unicode = unicode;
4294 es->style = lpcs->style;
4295
4296 es->bEnableState = !(es->style & WS_DISABLED);
4297
4298 es->hwndSelf = hwnd;
4299 /* Save parent, which will be notified by EN_* messages */
4300 es->hwndParent = lpcs->hwndParent;
4301
4302 if (es->style & ES_COMBO)
4303 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4304
4305 /* Number overrides lowercase overrides uppercase (at least it
4306 * does in Win95). However I'll bet that ES_NUMBER would be
4307 * invalid under Win 3.1.
4308 */
4309 if (es->style & ES_NUMBER) {
4310 ; /* do not override the ES_NUMBER */
4311 } else if (es->style & ES_LOWERCASE) {
4312 es->style &= ~ES_UPPERCASE;
4313 }
4314 if (es->style & ES_MULTILINE) {
4315 es->buffer_limit = BUFLIMIT_MULTI;
4316 if (es->style & WS_VSCROLL)
4317 es->style |= ES_AUTOVSCROLL;
4318 if (es->style & WS_HSCROLL)
4319 es->style |= ES_AUTOHSCROLL;
4320 es->style &= ~ES_PASSWORD;
4321 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4322 /* Confirmed - RIGHT overrides CENTER */
4323 if (es->style & ES_RIGHT)
4324 es->style &= ~ES_CENTER;
4325 es->style &= ~WS_HSCROLL;
4326 es->style &= ~ES_AUTOHSCROLL;
4327 }
4328
4329 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4330 es->style |= ES_AUTOVSCROLL;
4331 } else {
4332 es->buffer_limit = BUFLIMIT_SINGLE;
4333 if (WIN31_LOOK == TWEAK_WineLook ||
4334 WIN95_LOOK == TWEAK_WineLook) {
4335 es->style &= ~ES_CENTER;
4336 es->style &= ~ES_RIGHT;
4337 } else {
4338 if (es->style & ES_RIGHT)
4339 es->style &= ~ES_CENTER;
4340 }
4341 es->style &= ~WS_HSCROLL;
4342 es->style &= ~WS_VSCROLL;
4343 es->style &= ~ES_AUTOVSCROLL;
4344 es->style &= ~ES_WANTRETURN;
4345 if (es->style & ES_PASSWORD)
4346 es->password_char = '*';
4347
4348 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4349 es->style |= ES_AUTOHSCROLL;
4350 }
4351
4352 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4353 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4354 return FALSE;
4355 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4356
4357 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4358 return FALSE;
4359 es->undo_buffer_size = es->buffer_size;
4360
4361 if (es->style & ES_MULTILINE)
4362 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4363 return FALSE;
4364 es->line_count = 1;
4365
4366 /*
4367 * In Win95 look and feel, the WS_BORDER style is replaced by the
4368 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4369 * control a non client area. Not always. This coordinates in some
4370 * way with the window creation code in dialog.c When making
4371 * modifications please ensure that the code still works for edit
4372 * controls created directly with style 0x50800000, exStyle 0 (
4373 * which should have a single pixel border)
4374 */
4375 if (TWEAK_WineLook != WIN31_LOOK)
4376 {
4377 es->style &= ~WS_BORDER;
4378 }
4379 else
4380 {
4381 if ((es->style & WS_BORDER) && !(es->style & WS_DLGFRAME))
4382 SetWindowLongW( hwnd, GWL_STYLE,
4383 GetWindowLongW( hwnd, GWL_STYLE ) & ~WS_BORDER );
4384 }
4385
4386 return TRUE;
4387 }
4388
4389 /*********************************************************************
4390 *
4391 * WM_PAINT
4392 *
4393 */
4394 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam)
4395 {
4396 PAINTSTRUCT ps;
4397 INT i;
4398 HDC dc;
4399 HFONT old_font = 0;
4400 RECT rc;
4401 RECT rcLine;
4402 RECT rcRgn;
4403 BOOL rev = es->bEnableState &&
4404 ((es->flags & EF_FOCUSED) ||
4405 (es->style & ES_NOHIDESEL));
4406 if (!wParam)
4407 dc = BeginPaint(es->hwndSelf, &ps);
4408 else
4409 dc = (HDC) wParam;
4410 if(es->style & WS_BORDER) {
4411 GetClientRect(es->hwndSelf, &rc);
4412 if(es->style & ES_MULTILINE) {
4413 if(es->style & WS_HSCROLL) rc.bottom++;
4414 if(es->style & WS_VSCROLL) rc.right++;
4415 }
4416 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4417 }
4418 IntersectClipRect(dc, es->format_rect.left,
4419 es->format_rect.top,
4420 es->format_rect.right,
4421 es->format_rect.bottom);
4422 if (es->style & ES_MULTILINE) {
4423 GetClientRect(es->hwndSelf, &rc);
4424 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4425 }
4426 if (es->font)
4427 old_font = SelectObject(dc, es->font);
4428 EDIT_NotifyCtlColor(es, dc);
4429
4430 if (!es->bEnableState)
4431 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4432 GetClipBox(dc, &rcRgn);
4433 if (es->style & ES_MULTILINE) {
4434 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4435 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4436 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4437 if (IntersectRect(&rc, &rcRgn, &rcLine))
4438 EDIT_PaintLine(es, dc, i, rev);
4439 }
4440 } else {
4441 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4442 if (IntersectRect(&rc, &rcRgn, &rcLine))
4443 EDIT_PaintLine(es, dc, 0, rev);
4444 }
4445 if (es->font)
4446 SelectObject(dc, old_font);
4447
4448 if (!wParam)
4449 EndPaint(es->hwndSelf, &ps);
4450 }
4451
4452
4453 /*********************************************************************
4454 *
4455 * WM_PASTE
4456 *
4457 */
4458 static void EDIT_WM_Paste(EDITSTATE *es)
4459 {
4460 HGLOBAL hsrc;
4461 LPWSTR src;
4462
4463 /* Protect read-only edit control from modification */
4464 if(es->style & ES_READONLY)
4465 return;
4466
4467 OpenClipboard(es->hwndSelf);
4468 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4469 src = (LPWSTR)GlobalLock(hsrc);
4470 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4471 GlobalUnlock(hsrc);
4472 }
4473 CloseClipboard();
4474 }
4475
4476
4477 /*********************************************************************
4478 *
4479 * WM_SETFOCUS
4480 *
4481 */
4482 static void EDIT_WM_SetFocus(EDITSTATE *es)
4483 {
4484 es->flags |= EF_FOCUSED;
4485 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4486 EDIT_SetCaretPos(es, es->selection_end,
4487 es->flags & EF_AFTER_WRAP);
4488 if(!(es->style & ES_NOHIDESEL))
4489 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4490 ShowCaret(es->hwndSelf);
4491 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4492 }
4493
4494
4495 /*********************************************************************
4496 *
4497 * WM_SETFONT
4498 *
4499 * With Win95 look the margins are set to default font value unless
4500 * the system font (font == 0) is being set, in which case they are left
4501 * unchanged.
4502 *
4503 */
4504 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4505 {
4506 TEXTMETRICW tm;
4507 HDC dc;
4508 HFONT old_font = 0;
4509 RECT r;
4510
4511 es->font = font;
4512 dc = GetDC(es->hwndSelf);
4513 if (font)
4514 old_font = SelectObject(dc, font);
4515 GetTextMetricsW(dc, &tm);
4516 es->line_height = tm.tmHeight;
4517 es->char_width = tm.tmAveCharWidth;
4518 if (font)
4519 SelectObject(dc, old_font);
4520 ReleaseDC(es->hwndSelf, dc);
4521 if (font && (TWEAK_WineLook > WIN31_LOOK))
4522 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4523 EC_USEFONTINFO, EC_USEFONTINFO);
4524
4525 /* Force the recalculation of the format rect for each font change */
4526 GetClientRect(es->hwndSelf, &r);
4527 EDIT_SetRectNP(es, &r);
4528
4529 if (es->style & ES_MULTILINE)
4530 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4531 else
4532 EDIT_CalcLineWidth_SL(es);
4533
4534 if (redraw)
4535 EDIT_UpdateText(es, NULL, TRUE);
4536 if (es->flags & EF_FOCUSED) {
4537 DestroyCaret();
4538 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4539 EDIT_SetCaretPos(es, es->selection_end,
4540 es->flags & EF_AFTER_WRAP);
4541 ShowCaret(es->hwndSelf);
4542 }
4543 }
4544
4545
4546 /*********************************************************************
4547 *
4548 * WM_SETTEXT
4549 *
4550 * NOTES
4551 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4552 * The modified flag is reset. No notifications are sent.
4553 *
4554 * For single-line controls, reception of WM_SETTEXT triggers:
4555 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4556 *
4557 */
4558 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode)
4559 {
4560 LPWSTR text = NULL;
4561
4562 if(unicode)
4563 text = (LPWSTR)lParam;
4564 else if (lParam)
4565 {
4566 LPCSTR textA = (LPCSTR)lParam;
4567 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4568 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4569 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4570 }
4571
4572 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4573 if (text) {
4574 TRACE("%s\n", debugstr_w(text));
4575 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
4576 if(!unicode)
4577 HeapFree(GetProcessHeap(), 0, text);
4578 } else {
4579 static const WCHAR empty_stringW[] = {0};
4580 TRACE("<NULL>\n");
4581 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
4582 }
4583 es->x_offset = 0;
4584 es->flags &= ~EF_MODIFIED;
4585 EDIT_EM_SetSel(es, 0, 0, FALSE);
4586 /* Send the notification after the selection start and end have been set
4587 * edit control doesn't send notification on WM_SETTEXT
4588 * if it is multiline, or it is part of combobox
4589 */
4590 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4591 {
4592 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4593 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4594 }
4595 EDIT_EM_ScrollCaret(es);
4596 }
4597
4598
4599 /*********************************************************************
4600 *
4601 * WM_SIZE
4602 *
4603 */
4604 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
4605 {
4606 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4607 RECT rc;
4608 TRACE("width = %d, height = %d\n", width, height);
4609 SetRect(&rc, 0, 0, width, height);
4610 EDIT_SetRectNP(es, &rc);
4611 EDIT_UpdateText(es, NULL, TRUE);
4612 }
4613 }
4614
4615
4616 /*********************************************************************
4617 *
4618 * WM_STYLECHANGED
4619 *
4620 * This message is sent by SetWindowLong on having changed either the Style
4621 * or the extended style.
4622 *
4623 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4624 *
4625 * See also EDIT_WM_NCCreate
4626 *
4627 * It appears that the Windows version of the edit control allows the style
4628 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4629 * style variable which will generally be different. In this function we
4630 * update the internal style based on what changed in the externally visible
4631 * style.
4632 *
4633 * Much of this content as based upon the MSDN, especially:
4634 * Platform SDK Documentation -> User Interface Services ->
4635 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4636 * Edit Control Styles
4637 */
4638 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4639 {
4640 if (GWL_STYLE == which) {
4641 DWORD style_change_mask;
4642 DWORD new_style;
4643 /* Only a subset of changes can be applied after the control
4644 * has been created.
4645 */
4646 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4647 ES_NUMBER;
4648 if (es->style & ES_MULTILINE)
4649 style_change_mask |= ES_WANTRETURN;
4650
4651 new_style = style->styleNew & style_change_mask;
4652
4653 /* Number overrides lowercase overrides uppercase (at least it
4654 * does in Win95). However I'll bet that ES_NUMBER would be
4655 * invalid under Win 3.1.
4656 */
4657 if (new_style & ES_NUMBER) {
4658 ; /* do not override the ES_NUMBER */
4659 } else if (new_style & ES_LOWERCASE) {
4660 new_style &= ~ES_UPPERCASE;
4661 }
4662
4663 es->style = (es->style & ~style_change_mask) | new_style;
4664 } else if (GWL_EXSTYLE == which) {
4665 ; /* FIXME - what is needed here */
4666 } else {
4667 WARN ("Invalid style change %d\n",which);
4668 }
4669
4670 return 0;
4671 }
4672
4673 /*********************************************************************
4674 *
4675 * WM_SYSKEYDOWN
4676 *
4677 */
4678 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4679 {
4680 if ((key == VK_BACK) && (key_data & 0x2000)) {
4681 if (EDIT_EM_CanUndo(es))
4682 EDIT_EM_Undo(es);
4683 return 0;
4684 } else if (key == VK_UP || key == VK_DOWN) {
4685 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4686 return 0;
4687 }
4688 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4689 }
4690
4691
4692 /*********************************************************************
4693 *
4694 * WM_TIMER
4695 *
4696 */
4697 static void EDIT_WM_Timer(EDITSTATE *es)
4698 {
4699 if (es->region_posx < 0) {
4700 EDIT_MoveBackward(es, TRUE);
4701 } else if (es->region_posx > 0) {
4702 EDIT_MoveForward(es, TRUE);
4703 }
4704 /*
4705 * FIXME: gotta do some vertical scrolling here, like
4706 * EDIT_EM_LineScroll(hwnd, 0, 1);
4707 */
4708 }
4709
4710 /*********************************************************************
4711 *
4712 * WM_VSCROLL
4713 *
4714 */
4715 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4716 {
4717 INT dy;
4718
4719 if (!(es->style & ES_MULTILINE))
4720 return 0;
4721
4722 if (!(es->style & ES_AUTOVSCROLL))
4723 return 0;
4724
4725 dy = 0;
4726 switch (action) {
4727 case SB_LINEUP:
4728 case SB_LINEDOWN:
4729 case SB_PAGEUP:
4730 case SB_PAGEDOWN:
4731 TRACE("action %d\n", action);
4732 EDIT_EM_Scroll(es, action);
4733 return 0;
4734 case SB_TOP:
4735 TRACE("SB_TOP\n");
4736 dy = -es->y_offset;
4737 break;
4738 case SB_BOTTOM:
4739 TRACE("SB_BOTTOM\n");
4740 dy = es->line_count - 1 - es->y_offset;
4741 break;
4742 case SB_THUMBTRACK:
4743 TRACE("SB_THUMBTRACK %d\n", pos);
4744 es->flags |= EF_VSCROLL_TRACK;
4745 if(es->style & WS_VSCROLL)
4746 dy = pos - es->y_offset;
4747 else
4748 {
4749 /* Assume default scroll range 0-100 */
4750 INT vlc, new_y;
4751 /* Sanity check */
4752 if(pos < 0 || pos > 100) return 0;
4753 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4754 new_y = pos * (es->line_count - vlc) / 100;
4755 dy = es->line_count ? (new_y - es->y_offset) : 0;
4756 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4757 es->line_count, es->y_offset, pos, dy);
4758 }
4759 break;
4760 case SB_THUMBPOSITION:
4761 TRACE("SB_THUMBPOSITION %d\n", pos);
4762 es->flags &= ~EF_VSCROLL_TRACK;
4763 if(es->style & WS_VSCROLL)
4764 dy = pos - es->y_offset;
4765 else
4766 {
4767 /* Assume default scroll range 0-100 */
4768 INT vlc, new_y;
4769 /* Sanity check */
4770 if(pos < 0 || pos > 100) return 0;
4771 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4772 new_y = pos * (es->line_count - vlc) / 100;
4773 dy = es->line_count ? (new_y - es->y_offset) : 0;
4774 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4775 es->line_count, es->y_offset, pos, dy);
4776 }
4777 if (!dy)
4778 {
4779 /* force scroll info update */
4780 EDIT_UpdateScrollInfo(es);
4781 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
4782 }
4783 break;
4784 case SB_ENDSCROLL:
4785 TRACE("SB_ENDSCROLL\n");
4786 break;
4787 /*
4788 * FIXME : the next two are undocumented !
4789 * Are we doing the right thing ?
4790 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4791 * although it's also a regular control message.
4792 */
4793 case EM_GETTHUMB: /* this one is used by NT notepad */
4794 case EM_GETTHUMB16:
4795 {
4796 LRESULT ret;
4797 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4798 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4799 else
4800 {
4801 /* Assume default scroll range 0-100 */
4802 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4803 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4804 }
4805 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4806 return ret;
4807 }
4808 case EM_LINESCROLL16:
4809 TRACE("EM_LINESCROLL16 %d\n", pos);
4810 dy = pos;
4811 break;
4812
4813 default:
4814 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4815 action, action);
4816 return 0;
4817 }
4818 if (dy)
4819 EDIT_EM_LineScroll(es, 0, dy);
4820 return 0;
4821 }
4822
4823 /*********************************************************************
4824 *
4825 * EDIT_UpdateText
4826 *
4827 */
4828 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
4829 {
4830 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4831 InvalidateRgn(es->hwndSelf, hrgn, bErase);
4832 }
4833
4834
4835 /*********************************************************************
4836 *
4837 * EDIT_UpdateText
4838 *
4839 */
4840 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
4841 {
4842 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4843 InvalidateRect(es->hwndSelf, rc, bErase);
4844 }
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