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widl: Update the manpage.
[wine/hacks.git] / dlls / user32 / edit.c
blob6ea843ecc97b3863e17301c91182fd0b7643f45a
1 /*
2 * Edit control
3 *
4 * Copyright David W. Metcalfe, 1994
5 * Copyright William Magro, 1995, 1996
6 * Copyright Frans van Dorsselaer, 1996, 1997
7 *
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 *
23 * NOTES
24 *
25 * This code was audited for completeness against the documented features
26 * of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun.
27 *
28 * Unless otherwise noted, we believe this code to be complete, as per
29 * the specification mentioned above.
30 * If you discover missing features, or bugs, please note them below.
31 *
32 * TODO:
33 * - EDITBALLOONTIP structure
34 * - EM_GETCUEBANNER/Edit_GetCueBannerText
35 * - EM_HIDEBALLOONTIP/Edit_HideBalloonTip
36 * - EM_SETCUEBANNER/Edit_SetCueBannerText
37 * - EM_SHOWBALLOONTIP/Edit_ShowBalloonTip
38 * - EM_GETIMESTATUS, EM_SETIMESTATUS
39 * - EN_ALIGN_LTR_EC
40 * - EN_ALIGN_RTL_EC
41 * - ES_OEMCONVERT
42 *
43 */
44
45 #include "config.h"
46
47 #include <stdarg.h>
48 #include <string.h>
49 #include <stdlib.h>
50
51 #include "windef.h"
52 #include "winbase.h"
53 #include "winnt.h"
54 #include "wownt32.h"
55 #include "win.h"
56 #include "imm.h"
57 #include "wine/winbase16.h"
58 #include "wine/winuser16.h"
59 #include "wine/unicode.h"
60 #include "controls.h"
61 #include "user_private.h"
62 #include "wine/debug.h"
63
64 WINE_DEFAULT_DEBUG_CHANNEL(edit);
65 WINE_DECLARE_DEBUG_CHANNEL(combo);
66 WINE_DECLARE_DEBUG_CHANNEL(relay);
67
68 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
69 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
70 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
71 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
72
73 /*
74 * extra flags for EDITSTATE.flags field
75 */
76 #define EF_MODIFIED 0x0001 /* text has been modified */
77 #define EF_FOCUSED 0x0002 /* we have input focus */
78 #define EF_UPDATE 0x0004 /* notify parent of changed state */
79 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
80 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
81 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
82 wrapped line, instead of in front of the next character */
83 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
84 #define EF_APP_HAS_HANDLE 0x0200 /* Set when an app sends EM_[G|S]ETHANDLE. We are in sole control of
85 the text buffer if this is clear. */
86 typedef enum
87 {
88 END_0 = 0, /* line ends with terminating '\0' character */
89 END_WRAP, /* line is wrapped */
90 END_HARD, /* line ends with a hard return '\r\n' */
91 END_SOFT, /* line ends with a soft return '\r\r\n' */
92 END_RICH /* line ends with a single '\n' */
93 } LINE_END;
94
95 typedef struct tagLINEDEF {
96 INT length; /* bruto length of a line in bytes */
97 INT net_length; /* netto length of a line in visible characters */
98 LINE_END ending;
99 INT width; /* width of the line in pixels */
100 INT index; /* line index into the buffer */
101 struct tagLINEDEF *next;
102 } LINEDEF;
103
104 typedef struct
105 {
106 BOOL is_unicode; /* how the control was created */
107 LPWSTR text; /* the actual contents of the control */
108 UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
109 UINT buffer_size; /* the size of the buffer in characters */
110 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
111 HFONT font; /* NULL means standard system font */
112 INT x_offset; /* scroll offset for multi lines this is in pixels
113 for single lines it's in characters */
114 INT line_height; /* height of a screen line in pixels */
115 INT char_width; /* average character width in pixels */
116 DWORD style; /* sane version of wnd->dwStyle */
117 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
118 INT undo_insert_count; /* number of characters inserted in sequence */
119 UINT undo_position; /* character index of the insertion and deletion */
120 LPWSTR undo_text; /* deleted text */
121 UINT undo_buffer_size; /* size of the deleted text buffer */
122 INT selection_start; /* == selection_end if no selection */
123 INT selection_end; /* == current caret position */
124 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
125 INT left_margin; /* in pixels */
126 INT right_margin; /* in pixels */
127 RECT format_rect;
128 INT text_width; /* width of the widest line in pixels for multi line controls
129 and just line width for single line controls */
130 INT region_posx; /* Position of cursor relative to region: */
131 INT region_posy; /* -1: to left, 0: within, 1: to right */
132 EDITWORDBREAKPROC16 word_break_proc16;
133 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
134 INT line_count; /* number of lines */
135 INT y_offset; /* scroll offset in number of lines */
136 BOOL bCaptureState; /* flag indicating whether mouse was captured */
137 BOOL bEnableState; /* flag keeping the enable state */
138 HWND hwndSelf; /* the our window handle */
139 HWND hwndParent; /* Handle of parent for sending EN_* messages.
140 Even if parent will change, EN_* messages
141 should be sent to the first parent. */
142 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
143 /*
144 * only for multi line controls
145 */
146 INT lock_count; /* amount of re-entries in the EditWndProc */
147 INT tabs_count;
148 LPINT tabs;
149 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
150 HLOCAL hloc32W; /* our unicode local memory block */
151 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
152 or EM_SETHANDLE16 */
153 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
154 or EM_SETHANDLE */
155 /*
156 * IME Data
157 */
158 UINT composition_len; /* length of composition, 0 == no composition */
159 int composition_start; /* the character position for the composition */
160 } EDITSTATE;
161
162
163 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
164 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
165
166 /* used for disabled or read-only edit control */
167 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
168 do \
169 { /* Notify parent which has created this edit control */ \
170 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
171 SendMessageW(es->hwndParent, WM_COMMAND, \
172 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
173 (LPARAM)(es->hwndSelf)); \
174 } while(0)
175
176 /*********************************************************************
177 *
178 * Declarations
179 *
180 */
181
182 /*
183 * These functions have trivial implementations
184 * We still like to call them internally
185 * "static inline" makes them more like macro's
186 */
187 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
188 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
189 static inline void EDIT_WM_Clear(EDITSTATE *es);
190 static inline void EDIT_WM_Cut(EDITSTATE *es);
191
192 /*
193 * Helper functions only valid for one type of control
194 */
195 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
196 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
197 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
198 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
199 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
200 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
201 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
202 /*
203 * Helper functions valid for both single line _and_ multi line controls
204 */
205 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
206 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
207 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
208 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
209 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
210 static void EDIT_LockBuffer(EDITSTATE *es);
211 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
212 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
213 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
214 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
215 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
216 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
217 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
218 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
219 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
220 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
221 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
222 static void EDIT_AdjustFormatRect(EDITSTATE *es);
223 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
224 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
225 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
226 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
227 /*
228 * EM_XXX message handlers
229 */
230 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
231 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
232 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
233 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
234 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode);
235 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
236 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
237 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
238 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
239 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
240 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
241 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
242 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
243 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
244 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
245 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
246 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
247 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
248 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit);
249 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, WORD left, WORD right, BOOL repaint);
250 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
251 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
252 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
253 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
254 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp);
255 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
256 static BOOL EDIT_EM_Undo(EDITSTATE *es);
257 /*
258 * WM_XXX message handlers
259 */
260 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
261 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
262 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
263 static void EDIT_WM_Copy(EDITSTATE *es);
264 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
265 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
266 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
267 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode);
268 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
269 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
270 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
271 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
272 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
273 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
274 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
275 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
276 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
277 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc);
278 static void EDIT_WM_Paste(EDITSTATE *es);
279 static void EDIT_WM_SetFocus(EDITSTATE *es);
280 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
281 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode);
282 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
283 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
284 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
285 static void EDIT_WM_Timer(EDITSTATE *es);
286 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
287 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
288 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
289 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es);
290
291 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
292 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
293
294 /*********************************************************************
295 * edit class descriptor
296 */
297 const struct builtin_class_descr EDIT_builtin_class =
298 {
299 "Edit", /* name */
300 CS_DBLCLKS | CS_PARENTDC, /* style */
301 EditWndProcA, /* procA */
302 EditWndProcW, /* procW */
303 sizeof(EDITSTATE *), /* extra */
304 IDC_IBEAM, /* cursor */
305 0 /* brush */
306 };
307
308
309 /*********************************************************************
310 *
311 * EM_CANUNDO
312 *
313 */
314 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
315 {
316 return (es->undo_insert_count || strlenW(es->undo_text));
317 }
318
319
320 /*********************************************************************
321 *
322 * EM_EMPTYUNDOBUFFER
323 *
324 */
325 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
326 {
327 es->undo_insert_count = 0;
328 *es->undo_text = '\0';
329 }
330
331
332 /*********************************************************************
333 *
334 * WM_CLEAR
335 *
336 */
337 static inline void EDIT_WM_Clear(EDITSTATE *es)
338 {
339 static const WCHAR empty_stringW[] = {0};
340
341 /* Protect read-only edit control from modification */
342 if(es->style & ES_READONLY)
343 return;
344
345 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
346 }
347
348
349 /*********************************************************************
350 *
351 * WM_CUT
352 *
353 */
354 static inline void EDIT_WM_Cut(EDITSTATE *es)
355 {
356 EDIT_WM_Copy(es);
357 EDIT_WM_Clear(es);
358 }
359
360
361 /**********************************************************************
362 * get_app_version
363 *
364 * Returns the window version in case Wine emulates a later version
365 * of windows than the application expects.
366 *
367 * In a number of cases when windows runs an application that was
368 * designed for an earlier windows version, windows reverts
369 * to "old" behaviour of that earlier version.
370 *
371 * An example is a disabled edit control that needs to be painted.
372 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
373 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
374 * applications with an expected version 0f 4.0 or higher.
375 *
376 */
377 static DWORD get_app_version(void)
378 {
379 static DWORD version;
380 if (!version)
381 {
382 DWORD dwEmulatedVersion;
383 OSVERSIONINFOW info;
384 DWORD dwProcVersion = GetProcessVersion(0);
385
386 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
387 GetVersionExW( &info );
388 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
389 /* FIXME: this may not be 100% correct; see discussion on the
390 * wine developer list in Nov 1999 */
391 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
392 }
393 return version;
394 }
395
396 static inline UINT get_text_length(EDITSTATE *es)
397 {
398 if(es->text_length == (UINT)-1)
399 es->text_length = strlenW(es->text);
400 return es->text_length;
401 }
402
403 static inline void text_buffer_changed(EDITSTATE *es)
404 {
405 es->text_length = (UINT)-1;
406 }
407
408 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
409 {
410 HBRUSH hbrush;
411 UINT msg;
412
413 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
414 msg = WM_CTLCOLORSTATIC;
415 else
416 msg = WM_CTLCOLOREDIT;
417
418 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
419 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
420 if (!hbrush)
421 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
422 return hbrush;
423 }
424
425 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
426 {
427 if(unicode)
428 return DefWindowProcW(hwnd, msg, wParam, lParam);
429 else
430 return DefWindowProcA(hwnd, msg, wParam, lParam);
431 }
432
433 /*********************************************************************
434 *
435 * EditWndProc_common
436 *
437 * The messages are in the order of the actual integer values
438 * (which can be found in include/windows.h)
439 * Wherever possible the 16 bit versions are converted to
440 * the 32 bit ones, so that we can 'fall through' to the
441 * helper functions. These are mostly 32 bit (with a few
442 * exceptions, clearly indicated by a '16' extension to their
443 * names).
444 *
445 */
446 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
447 WPARAM wParam, LPARAM lParam, BOOL unicode )
448 {
449 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
450 LRESULT result = 0;
451
452 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
453
454 if (!es && msg != WM_NCCREATE)
455 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
456
457 if (es && (msg != WM_DESTROY)) EDIT_LockBuffer(es);
458
459 switch (msg) {
460 case EM_GETSEL16:
461 wParam = 0;
462 lParam = 0;
463 /* fall through */
464 case EM_GETSEL:
465 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
466 break;
467
468 case EM_SETSEL16:
469 if ((short)LOWORD(lParam) == -1)
470 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
471 else
472 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
473 if (!wParam)
474 EDIT_EM_ScrollCaret(es);
475 result = 1;
476 break;
477 case EM_SETSEL:
478 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
479 EDIT_EM_ScrollCaret(es);
480 result = 1;
481 break;
482
483 case EM_GETRECT16:
484 if (lParam)
485 {
486 RECT16 *r16 = MapSL(lParam);
487 r16->left = es->format_rect.left;
488 r16->top = es->format_rect.top;
489 r16->right = es->format_rect.right;
490 r16->bottom = es->format_rect.bottom;
491 }
492 break;
493 case EM_GETRECT:
494 if (lParam)
495 CopyRect((LPRECT)lParam, &es->format_rect);
496 break;
497
498 case EM_SETRECT16:
499 if ((es->style & ES_MULTILINE) && lParam) {
500 RECT rc;
501 RECT16 *r16 = MapSL(lParam);
502 rc.left = r16->left;
503 rc.top = r16->top;
504 rc.right = r16->right;
505 rc.bottom = r16->bottom;
506 EDIT_SetRectNP(es, &rc);
507 EDIT_UpdateText(es, NULL, TRUE);
508 }
509 break;
510 case EM_SETRECT:
511 if ((es->style & ES_MULTILINE) && lParam) {
512 EDIT_SetRectNP(es, (LPRECT)lParam);
513 EDIT_UpdateText(es, NULL, TRUE);
514 }
515 break;
516
517 case EM_SETRECTNP16:
518 if ((es->style & ES_MULTILINE) && lParam) {
519 RECT rc;
520 RECT16 *r16 = MapSL(lParam);
521 rc.left = r16->left;
522 rc.top = r16->top;
523 rc.right = r16->right;
524 rc.bottom = r16->bottom;
525 EDIT_SetRectNP(es, &rc);
526 }
527 break;
528 case EM_SETRECTNP:
529 if ((es->style & ES_MULTILINE) && lParam)
530 EDIT_SetRectNP(es, (LPRECT)lParam);
531 break;
532
533 case EM_SCROLL16:
534 case EM_SCROLL:
535 result = EDIT_EM_Scroll(es, (INT)wParam);
536 break;
537
538 case EM_LINESCROLL16:
539 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
540 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
541 /* fall through */
542 case EM_LINESCROLL:
543 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
544 break;
545
546 case EM_SCROLLCARET16:
547 case EM_SCROLLCARET:
548 EDIT_EM_ScrollCaret(es);
549 result = 1;
550 break;
551
552 case EM_GETMODIFY16:
553 case EM_GETMODIFY:
554 result = ((es->flags & EF_MODIFIED) != 0);
555 break;
556
557 case EM_SETMODIFY16:
558 case EM_SETMODIFY:
559 if (wParam)
560 es->flags |= EF_MODIFIED;
561 else
562 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
563 break;
564
565 case EM_GETLINECOUNT16:
566 case EM_GETLINECOUNT:
567 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
568 break;
569
570 case EM_LINEINDEX16:
571 if ((INT16)wParam == -1)
572 wParam = (WPARAM)-1;
573 /* fall through */
574 case EM_LINEINDEX:
575 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
576 break;
577
578 case EM_SETHANDLE16:
579 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
580 break;
581 case EM_SETHANDLE:
582 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
583 break;
584
585 case EM_GETHANDLE16:
586 result = (LRESULT)EDIT_EM_GetHandle16(es);
587 break;
588 case EM_GETHANDLE:
589 result = (LRESULT)EDIT_EM_GetHandle(es);
590 break;
591
592 case EM_GETTHUMB16:
593 case EM_GETTHUMB:
594 result = EDIT_EM_GetThumb(es);
595 break;
596
597 /* these messages missing from specs */
598 case WM_USER+15:
599 case 0x00bf:
600 case WM_USER+16:
601 case 0x00c0:
602 case WM_USER+19:
603 case 0x00c3:
604 case WM_USER+26:
605 case 0x00ca:
606 FIXME("undocumented message 0x%x, please report\n", msg);
607 result = DefWindowProcW(hwnd, msg, wParam, lParam);
608 break;
609
610 case EM_LINELENGTH16:
611 case EM_LINELENGTH:
612 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
613 break;
614
615 case EM_REPLACESEL16:
616 lParam = (LPARAM)MapSL(lParam);
617 unicode = FALSE; /* 16-bit message is always ascii */
618 /* fall through */
619 case EM_REPLACESEL:
620 {
621 LPWSTR textW;
622
623 if(unicode)
624 textW = (LPWSTR)lParam;
625 else
626 {
627 LPSTR textA = (LPSTR)lParam;
628 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
629 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
630 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
631 }
632
633 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
634 result = 1;
635
636 if(!unicode)
637 HeapFree(GetProcessHeap(), 0, textW);
638 break;
639 }
640
641 case EM_GETLINE16:
642 lParam = (LPARAM)MapSL(lParam);
643 unicode = FALSE; /* 16-bit message is always ascii */
644 /* fall through */
645 case EM_GETLINE:
646 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
647 break;
648
649 case EM_LIMITTEXT16:
650 case EM_SETLIMITTEXT:
651 EDIT_EM_SetLimitText(es, wParam);
652 break;
653
654 case EM_CANUNDO16:
655 case EM_CANUNDO:
656 result = (LRESULT)EDIT_EM_CanUndo(es);
657 break;
658
659 case EM_UNDO16:
660 case EM_UNDO:
661 case WM_UNDO:
662 result = (LRESULT)EDIT_EM_Undo(es);
663 break;
664
665 case EM_FMTLINES16:
666 case EM_FMTLINES:
667 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
668 break;
669
670 case EM_LINEFROMCHAR16:
671 case EM_LINEFROMCHAR:
672 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
673 break;
674
675 case EM_SETTABSTOPS16:
676 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
677 break;
678 case EM_SETTABSTOPS:
679 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
680 break;
681
682 case EM_SETPASSWORDCHAR16:
683 unicode = FALSE; /* 16-bit message is always ascii */
684 /* fall through */
685 case EM_SETPASSWORDCHAR:
686 {
687 WCHAR charW = 0;
688
689 if(unicode)
690 charW = (WCHAR)wParam;
691 else
692 {
693 CHAR charA = wParam;
694 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
695 }
696
697 EDIT_EM_SetPasswordChar(es, charW);
698 break;
699 }
700
701 case EM_EMPTYUNDOBUFFER16:
702 case EM_EMPTYUNDOBUFFER:
703 EDIT_EM_EmptyUndoBuffer(es);
704 break;
705
706 case EM_GETFIRSTVISIBLELINE16:
707 result = es->y_offset;
708 break;
709 case EM_GETFIRSTVISIBLELINE:
710 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
711 break;
712
713 case EM_SETREADONLY16:
714 case EM_SETREADONLY:
715 if (wParam) {
716 SetWindowLongW( hwnd, GWL_STYLE,
717 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
718 es->style |= ES_READONLY;
719 } else {
720 SetWindowLongW( hwnd, GWL_STYLE,
721 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
722 es->style &= ~ES_READONLY;
723 }
724 result = 1;
725 break;
726
727 case EM_SETWORDBREAKPROC16:
728 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
729 break;
730 case EM_SETWORDBREAKPROC:
731 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
732 break;
733
734 case EM_GETWORDBREAKPROC16:
735 result = (LRESULT)es->word_break_proc16;
736 break;
737 case EM_GETWORDBREAKPROC:
738 result = (LRESULT)es->word_break_proc;
739 break;
740
741 case EM_GETPASSWORDCHAR16:
742 unicode = FALSE; /* 16-bit message is always ascii */
743 /* fall through */
744 case EM_GETPASSWORDCHAR:
745 {
746 if(unicode)
747 result = es->password_char;
748 else
749 {
750 WCHAR charW = es->password_char;
751 CHAR charA = 0;
752 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
753 result = charA;
754 }
755 break;
756 }
757
758 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
759
760 case EM_SETMARGINS:
761 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
762 break;
763
764 case EM_GETMARGINS:
765 result = MAKELONG(es->left_margin, es->right_margin);
766 break;
767
768 case EM_GETLIMITTEXT:
769 result = es->buffer_limit;
770 break;
771
772 case EM_POSFROMCHAR:
773 if ((INT)wParam >= get_text_length(es)) result = -1;
774 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
775 break;
776
777 case EM_CHARFROMPOS:
778 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
779 break;
780
781 /* End of the EM_ messages which were in numerical order; what order
782 * are these in? vaguely alphabetical?
783 */
784
785 case WM_NCCREATE:
786 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
787 break;
788
789 case WM_DESTROY:
790 result = EDIT_WM_Destroy(es);
791 es = NULL;
792 break;
793
794 case WM_GETDLGCODE:
795 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
796
797 if (es->style & ES_MULTILINE)
798 {
799 result |= DLGC_WANTALLKEYS;
800 break;
801 }
802
803 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
804 {
805 int vk = (int)((LPMSG)lParam)->wParam;
806
807 if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
808 {
809 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
810 result |= DLGC_WANTMESSAGE;
811 }
812 }
813 break;
814
815 case WM_IME_CHAR:
816 if (!unicode)
817 {
818 WCHAR charW;
819 CHAR strng[2];
820
821 strng[0] = wParam >> 8;
822 strng[1] = wParam & 0xff;
823 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
824 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
825 EDIT_WM_Char(es, charW);
826 break;
827 }
828 /* fall through */
829 case WM_CHAR:
830 {
831 WCHAR charW;
832
833 if(unicode)
834 charW = wParam;
835 else
836 {
837 CHAR charA = wParam;
838 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
839 }
840
841 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
842 {
843 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
844 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
845 break;
846 }
847 EDIT_WM_Char(es, charW);
848 break;
849 }
850
851 case WM_CLEAR:
852 EDIT_WM_Clear(es);
853 break;
854
855 case WM_COMMAND:
856 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
857 break;
858
859 case WM_CONTEXTMENU:
860 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
861 break;
862
863 case WM_COPY:
864 EDIT_WM_Copy(es);
865 break;
866
867 case WM_CREATE:
868 if(unicode)
869 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
870 else
871 {
872 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
873 LPWSTR nameW = NULL;
874 if(nameA)
875 {
876 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
877 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
878 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
879 }
880 result = EDIT_WM_Create(es, nameW);
881 HeapFree(GetProcessHeap(), 0, nameW);
882 }
883 break;
884
885 case WM_CUT:
886 EDIT_WM_Cut(es);
887 break;
888
889 case WM_ENABLE:
890 es->bEnableState = (BOOL) wParam;
891 EDIT_UpdateText(es, NULL, TRUE);
892 break;
893
894 case WM_ERASEBKGND:
895 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
896 break;
897
898 case WM_GETFONT:
899 result = (LRESULT)es->font;
900 break;
901
902 case WM_GETTEXT:
903 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
904 break;
905
906 case WM_GETTEXTLENGTH:
907 if (unicode) result = get_text_length(es);
908 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
909 NULL, 0, NULL, NULL );
910 break;
911
912 case WM_HSCROLL:
913 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
914 break;
915
916 case WM_KEYDOWN:
917 result = EDIT_WM_KeyDown(es, (INT)wParam);
918 break;
919
920 case WM_KILLFOCUS:
921 result = EDIT_WM_KillFocus(es);
922 break;
923
924 case WM_LBUTTONDBLCLK:
925 result = EDIT_WM_LButtonDblClk(es);
926 break;
927
928 case WM_LBUTTONDOWN:
929 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
930 break;
931
932 case WM_LBUTTONUP:
933 result = EDIT_WM_LButtonUp(es);
934 break;
935
936 case WM_MBUTTONDOWN:
937 result = EDIT_WM_MButtonDown(es);
938 break;
939
940 case WM_MOUSEMOVE:
941 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
942 break;
943
944 case WM_PRINTCLIENT:
945 case WM_PAINT:
946 EDIT_WM_Paint(es, (HDC)wParam);
947 break;
948
949 case WM_PASTE:
950 EDIT_WM_Paste(es);
951 break;
952
953 case WM_SETFOCUS:
954 EDIT_WM_SetFocus(es);
955 break;
956
957 case WM_SETFONT:
958 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
959 break;
960
961 case WM_SETREDRAW:
962 /* FIXME: actually set an internal flag and behave accordingly */
963 break;
964
965 case WM_SETTEXT:
966 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
967 result = TRUE;
968 break;
969
970 case WM_SIZE:
971 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
972 break;
973
974 case WM_STYLECHANGED:
975 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
976 break;
977
978 case WM_STYLECHANGING:
979 result = 0; /* See EDIT_WM_StyleChanged */
980 break;
981
982 case WM_SYSKEYDOWN:
983 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
984 break;
985
986 case WM_TIMER:
987 EDIT_WM_Timer(es);
988 break;
989
990 case WM_VSCROLL:
991 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
992 break;
993
994 case WM_MOUSEWHEEL:
995 {
996 int gcWheelDelta = 0;
997 UINT pulScrollLines = 3;
998 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
999
1000 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1001 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1002 break;
1003 }
1004 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1005 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1006 {
1007 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1008 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1009 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1010 }
1011 }
1012 break;
1013
1014
1015 /* IME messages to make the edit control IME aware */
1016 case WM_IME_SETCONTEXT:
1017 break;
1018
1019 case WM_IME_STARTCOMPOSITION:
1020 /*
1021 * FIXME in IME: This message is not always sent like it should be
1022 */
1023 if (es->selection_start != es->selection_end)
1024 {
1025 static const WCHAR empty_stringW[] = {0};
1026 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1027 }
1028 es->composition_start = es->selection_end;
1029 es->composition_len = 0;
1030 break;
1031
1032 case WM_IME_COMPOSITION:
1033 {
1034 int caret_pos = es->selection_end;
1035 if (es->composition_len == 0)
1036 {
1037 if (es->selection_start != es->selection_end)
1038 {
1039 static const WCHAR empty_stringW[] = {0};
1040 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1041 }
1042
1043 es->composition_start = es->selection_end;
1044 }
1045 EDIT_ImeComposition(hwnd,lParam,es);
1046 EDIT_SetCaretPos(es, caret_pos, es->flags & EF_AFTER_WRAP);
1047 break;
1048 }
1049
1050 case WM_IME_ENDCOMPOSITION:
1051 es->composition_len= 0;
1052 break;
1053
1054 case WM_IME_COMPOSITIONFULL:
1055 break;
1056
1057 case WM_IME_SELECT:
1058 break;
1059
1060 case WM_IME_CONTROL:
1061 break;
1062
1063 default:
1064 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1065 break;
1066 }
1067
1068 if (es) EDIT_UnlockBuffer(es, FALSE);
1069
1070 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1071
1072 return result;
1073 }
1074
1075 /*********************************************************************
1076 *
1077 * EditWndProcW (USER32.@)
1078 */
1079 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1080 {
1081 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1082 }
1083
1084 /*********************************************************************
1085 *
1086 * EditWndProc (USER32.@)
1087 */
1088 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1089 {
1090 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1091 }
1092
1093 /*********************************************************************
1094 *
1095 * EDIT_BuildLineDefs_ML
1096 *
1097 * Build linked list of text lines.
1098 * Lines can end with '\0' (last line), a character (if it is wrapped),
1099 * a soft return '\r\r\n' or a hard return '\r\n'
1100 *
1101 */
1102 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1103 {
1104 HDC dc;
1105 HFONT old_font = 0;
1106 LPWSTR current_position, cp;
1107 INT fw;
1108 LINEDEF *current_line;
1109 LINEDEF *previous_line;
1110 LINEDEF *start_line;
1111 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1112 INT line_count = es->line_count;
1113 INT orig_net_length;
1114 RECT rc;
1115
1116 if (istart == iend && delta == 0)
1117 return;
1118
1119 dc = GetDC(es->hwndSelf);
1120 if (es->font)
1121 old_font = SelectObject(dc, es->font);
1122
1123 previous_line = NULL;
1124 current_line = es->first_line_def;
1125
1126 /* Find starting line. istart must lie inside an existing line or
1127 * at the end of buffer */
1128 do {
1129 if (istart < current_line->index + current_line->length ||
1130 current_line->ending == END_0)
1131 break;
1132
1133 previous_line = current_line;
1134 current_line = current_line->next;
1135 line_index++;
1136 } while (current_line);
1137
1138 if (!current_line) /* Error occurred start is not inside previous buffer */
1139 {
1140 FIXME(" modification occurred outside buffer\n");
1141 ReleaseDC(es->hwndSelf, dc);
1142 return;
1143 }
1144
1145 /* Remember start of modifications in order to calculate update region */
1146 nstart_line = line_index;
1147 nstart_index = current_line->index;
1148
1149 /* We must start to reformat from the previous line since the modifications
1150 * may have caused the line to wrap upwards. */
1151 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1152 {
1153 line_index--;
1154 current_line = previous_line;
1155 }
1156 start_line = current_line;
1157
1158 fw = es->format_rect.right - es->format_rect.left;
1159 current_position = es->text + current_line->index;
1160 do {
1161 if (current_line != start_line)
1162 {
1163 if (!current_line || current_line->index + delta > current_position - es->text)
1164 {
1165 /* The buffer has been expanded, create a new line and
1166 insert it into the link list */
1167 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1168 new_line->next = previous_line->next;
1169 previous_line->next = new_line;
1170 current_line = new_line;
1171 es->line_count++;
1172 }
1173 else if (current_line->index + delta < current_position - es->text)
1174 {
1175 /* The previous line merged with this line so we delete this extra entry */
1176 previous_line->next = current_line->next;
1177 HeapFree(GetProcessHeap(), 0, current_line);
1178 current_line = previous_line->next;
1179 es->line_count--;
1180 continue;
1181 }
1182 else /* current_line->index + delta == current_position */
1183 {
1184 if (current_position - es->text > iend)
1185 break; /* We reached end of line modifications */
1186 /* else recalulate this line */
1187 }
1188 }
1189
1190 current_line->index = current_position - es->text;
1191 orig_net_length = current_line->net_length;
1192
1193 /* Find end of line */
1194 cp = current_position;
1195 while (*cp) {
1196 if (*cp == '\n') break;
1197 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1198 break;
1199 cp++;
1200 }
1201
1202 /* Mark type of line termination */
1203 if (!(*cp)) {
1204 current_line->ending = END_0;
1205 current_line->net_length = strlenW(current_position);
1206 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1207 current_line->ending = END_SOFT;
1208 current_line->net_length = cp - current_position - 1;
1209 } else if (*cp == '\n') {
1210 current_line->ending = END_RICH;
1211 current_line->net_length = cp - current_position;
1212 } else {
1213 current_line->ending = END_HARD;
1214 current_line->net_length = cp - current_position;
1215 }
1216
1217 /* Calculate line width */
1218 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1219 current_position, current_line->net_length,
1220 es->tabs_count, es->tabs));
1221
1222 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1223 if (!(es->style & ES_AUTOHSCROLL)) {
1224 if (current_line->width > fw) {
1225 INT next = 0;
1226 INT prev;
1227 do {
1228 prev = next;
1229 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1230 prev + 1, current_line->net_length, WB_RIGHT);
1231 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1232 current_position, next, es->tabs_count, es->tabs));
1233 } while (current_line->width <= fw);
1234 if (!prev) { /* Didn't find a line break so force a break */
1235 next = 0;
1236 do {
1237 prev = next;
1238 next++;
1239 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1240 current_position, next, es->tabs_count, es->tabs));
1241 } while (current_line->width <= fw);
1242 if (!prev)
1243 prev = 1;
1244 }
1245
1246 /* If the first line we are calculating, wrapped before istart, we must
1247 * adjust istart in order for this to be reflected in the update region. */
1248 if (current_line->index == nstart_index && istart > current_line->index + prev)
1249 istart = current_line->index + prev;
1250 /* else if we are updating the previous line before the first line we
1251 * are re-calculating and it expanded */
1252 else if (current_line == start_line &&
1253 current_line->index != nstart_index && orig_net_length < prev)
1254 {
1255 /* Line expanded due to an upwards line wrap so we must partially include
1256 * previous line in update region */
1257 nstart_line = line_index;
1258 nstart_index = current_line->index;
1259 istart = current_line->index + orig_net_length;
1260 }
1261
1262 current_line->net_length = prev;
1263 current_line->ending = END_WRAP;
1264 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1265 current_line->net_length, es->tabs_count, es->tabs));
1266 }
1267 else if (orig_net_length < current_line->net_length &&
1268 current_line == start_line &&
1269 current_line->index != nstart_index) {
1270 /* The previous line expanded but it's still not as wide as the client rect */
1271 /* The expansion is due to an upwards line wrap so we must partially include
1272 it in the update region */
1273 nstart_line = line_index;
1274 nstart_index = current_line->index;
1275 istart = current_line->index + orig_net_length;
1276 }
1277 }
1278
1279
1280 /* Adjust length to include line termination */
1281 switch (current_line->ending) {
1282 case END_SOFT:
1283 current_line->length = current_line->net_length + 3;
1284 break;
1285 case END_RICH:
1286 current_line->length = current_line->net_length + 1;
1287 break;
1288 case END_HARD:
1289 current_line->length = current_line->net_length + 2;
1290 break;
1291 case END_WRAP:
1292 case END_0:
1293 current_line->length = current_line->net_length;
1294 break;
1295 }
1296 es->text_width = max(es->text_width, current_line->width);
1297 current_position += current_line->length;
1298 previous_line = current_line;
1299 current_line = current_line->next;
1300 line_index++;
1301 } while (previous_line->ending != END_0);
1302
1303 /* Finish adjusting line indexes by delta or remove hanging lines */
1304 if (previous_line->ending == END_0)
1305 {
1306 LINEDEF *pnext = NULL;
1307
1308 previous_line->next = NULL;
1309 while (current_line)
1310 {
1311 pnext = current_line->next;
1312 HeapFree(GetProcessHeap(), 0, current_line);
1313 current_line = pnext;
1314 es->line_count--;
1315 }
1316 }
1317 else if (delta != 0)
1318 {
1319 while (current_line)
1320 {
1321 current_line->index += delta;
1322 current_line = current_line->next;
1323 }
1324 }
1325
1326 /* Calculate rest of modification rectangle */
1327 if (hrgn)
1328 {
1329 HRGN tmphrgn;
1330 /*
1331 * We calculate two rectangles. One for the first line which may have
1332 * an indent with respect to the format rect. The other is a format-width
1333 * rectangle that spans the rest of the lines that changed or moved.
1334 */
1335 rc.top = es->format_rect.top + nstart_line * es->line_height -
1336 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1337 rc.bottom = rc.top + es->line_height;
1338 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1339 rc.left = es->format_rect.left;
1340 else
1341 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1342 es->text + nstart_index, istart - nstart_index,
1343 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1344 rc.right = es->format_rect.right;
1345 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1346
1347 rc.top = rc.bottom;
1348 rc.left = es->format_rect.left;
1349 rc.right = es->format_rect.right;
1350 /*
1351 * If lines were added or removed we must re-paint the remainder of the
1352 * lines since the remaining lines were either shifted up or down.
1353 */
1354 if (line_count < es->line_count) /* We added lines */
1355 rc.bottom = es->line_count * es->line_height;
1356 else if (line_count > es->line_count) /* We removed lines */
1357 rc.bottom = line_count * es->line_height;
1358 else
1359 rc.bottom = line_index * es->line_height;
1360 rc.bottom += es->format_rect.top;
1361 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1362 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1363 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1364 DeleteObject(tmphrgn);
1365 }
1366
1367 if (es->font)
1368 SelectObject(dc, old_font);
1369
1370 ReleaseDC(es->hwndSelf, dc);
1371 }
1372
1373 /*********************************************************************
1374 *
1375 * EDIT_CalcLineWidth_SL
1376 *
1377 */
1378 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1379 {
1380 SIZE size;
1381 LPWSTR text;
1382 HDC dc;
1383 HFONT old_font = 0;
1384
1385 text = EDIT_GetPasswordPointer_SL(es);
1386
1387 dc = GetDC(es->hwndSelf);
1388 if (es->font)
1389 old_font = SelectObject(dc, es->font);
1390
1391 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1392
1393 if (es->font)
1394 SelectObject(dc, old_font);
1395 ReleaseDC(es->hwndSelf, dc);
1396
1397 if (es->style & ES_PASSWORD)
1398 HeapFree(GetProcessHeap(), 0, text);
1399
1400 es->text_width = size.cx;
1401 }
1402
1403 /*********************************************************************
1404 *
1405 * EDIT_CallWordBreakProc
1406 *
1407 * Call appropriate WordBreakProc (internal or external).
1408 *
1409 * Note: The "start" argument should always be an index referring
1410 * to es->text. The actual wordbreak proc might be
1411 * 16 bit, so we can't always pass any 32 bit LPSTR.
1412 * Hence we assume that es->text is the buffer that holds
1413 * the string under examination (we can decide this for ourselves).
1414 *
1415 */
1416 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1417 {
1418 INT ret;
1419
1420 if (es->word_break_proc16) {
1421 HGLOBAL16 hglob16;
1422 SEGPTR segptr;
1423 INT countA;
1424 WORD args[5];
1425 DWORD result;
1426
1427 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1428 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1429 segptr = WOWGlobalLock16(hglob16);
1430 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1431 args[4] = SELECTOROF(segptr);
1432 args[3] = OFFSETOF(segptr);
1433 args[2] = index;
1434 args[1] = countA;
1435 args[0] = action;
1436 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1437 ret = LOWORD(result);
1438 GlobalUnlock16(hglob16);
1439 GlobalFree16(hglob16);
1440 }
1441 else if (es->word_break_proc)
1442 {
1443 if(es->is_unicode)
1444 {
1445 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1446
1447 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1448 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1449 ret = wbpW(es->text + start, index, count, action);
1450 }
1451 else
1452 {
1453 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1454 INT countA;
1455 CHAR *textA;
1456
1457 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1458 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1459 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1460 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1461 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1462 ret = wbpA(textA, index, countA, action);
1463 HeapFree(GetProcessHeap(), 0, textA);
1464 }
1465 }
1466 else
1467 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1468
1469 return ret;
1470 }
1471
1472
1473 /*********************************************************************
1474 *
1475 * EDIT_CharFromPos
1476 *
1477 * Beware: This is not the function called on EM_CHARFROMPOS
1478 * The position _can_ be outside the formatting / client
1479 * rectangle
1480 * The return value is only the character index
1481 *
1482 */
1483 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1484 {
1485 INT index;
1486 HDC dc;
1487 HFONT old_font = 0;
1488 INT x_high = 0, x_low = 0;
1489
1490 if (es->style & ES_MULTILINE) {
1491 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1492 INT line_index = 0;
1493 LINEDEF *line_def = es->first_line_def;
1494 INT low, high;
1495 while ((line > 0) && line_def->next) {
1496 line_index += line_def->length;
1497 line_def = line_def->next;
1498 line--;
1499 }
1500 x += es->x_offset - es->format_rect.left;
1501 if (es->style & ES_RIGHT)
1502 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1503 else if (es->style & ES_CENTER)
1504 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1505 if (x >= line_def->width) {
1506 if (after_wrap)
1507 *after_wrap = (line_def->ending == END_WRAP);
1508 return line_index + line_def->net_length;
1509 }
1510 if (x <= 0) {
1511 if (after_wrap)
1512 *after_wrap = FALSE;
1513 return line_index;
1514 }
1515 dc = GetDC(es->hwndSelf);
1516 if (es->font)
1517 old_font = SelectObject(dc, es->font);
1518 low = line_index;
1519 high = line_index + line_def->net_length + 1;
1520 while (low < high - 1)
1521 {
1522 INT mid = (low + high) / 2;
1523 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1524 if (x_now > x) {
1525 high = mid;
1526 x_high = x_now;
1527 } else {
1528 low = mid;
1529 x_low = x_now;
1530 }
1531 }
1532 if (abs(x_high - x) + 1 <= abs(x_low - x))
1533 index = high;
1534 else
1535 index = low;
1536
1537 if (after_wrap)
1538 *after_wrap = ((index == line_index + line_def->net_length) &&
1539 (line_def->ending == END_WRAP));
1540 } else {
1541 LPWSTR text;
1542 SIZE size;
1543 if (after_wrap)
1544 *after_wrap = FALSE;
1545 x -= es->format_rect.left;
1546 if (!x)
1547 return es->x_offset;
1548
1549 if (!es->x_offset)
1550 {
1551 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1552 if (es->style & ES_RIGHT)
1553 x -= indent;
1554 else if (es->style & ES_CENTER)
1555 x -= indent / 2;
1556 }
1557
1558 text = EDIT_GetPasswordPointer_SL(es);
1559 dc = GetDC(es->hwndSelf);
1560 if (es->font)
1561 old_font = SelectObject(dc, es->font);
1562 if (x < 0)
1563 {
1564 INT low = 0;
1565 INT high = es->x_offset;
1566 while (low < high - 1)
1567 {
1568 INT mid = (low + high) / 2;
1569 GetTextExtentPoint32W( dc, text + mid,
1570 es->x_offset - mid, &size );
1571 if (size.cx > -x) {
1572 low = mid;
1573 x_low = size.cx;
1574 } else {
1575 high = mid;
1576 x_high = size.cx;
1577 }
1578 }
1579 if (abs(x_high + x) <= abs(x_low + x) + 1)
1580 index = high;
1581 else
1582 index = low;
1583 }
1584 else
1585 {
1586 INT low = es->x_offset;
1587 INT high = get_text_length(es) + 1;
1588 while (low < high - 1)
1589 {
1590 INT mid = (low + high) / 2;
1591 GetTextExtentPoint32W( dc, text + es->x_offset,
1592 mid - es->x_offset, &size );
1593 if (size.cx > x) {
1594 high = mid;
1595 x_high = size.cx;
1596 } else {
1597 low = mid;
1598 x_low = size.cx;
1599 }
1600 }
1601 if (abs(x_high - x) <= abs(x_low - x) + 1)
1602 index = high;
1603 else
1604 index = low;
1605 }
1606 if (es->style & ES_PASSWORD)
1607 HeapFree(GetProcessHeap(), 0, text);
1608 }
1609 if (es->font)
1610 SelectObject(dc, old_font);
1611 ReleaseDC(es->hwndSelf, dc);
1612 return index;
1613 }
1614
1615
1616 /*********************************************************************
1617 *
1618 * EDIT_ConfinePoint
1619 *
1620 * adjusts the point to be within the formatting rectangle
1621 * (so CharFromPos returns the nearest _visible_ character)
1622 *
1623 */
1624 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1625 {
1626 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1627 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1628 }
1629
1630
1631 /*********************************************************************
1632 *
1633 * EDIT_GetLineRect
1634 *
1635 * Calculates the bounding rectangle for a line from a starting
1636 * column to an ending column.
1637 *
1638 */
1639 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1640 {
1641 INT line_index = EDIT_EM_LineIndex(es, line);
1642
1643 if (es->style & ES_MULTILINE)
1644 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1645 else
1646 rc->top = es->format_rect.top;
1647 rc->bottom = rc->top + es->line_height;
1648 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1649 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1650 }
1651
1652
1653 /*********************************************************************
1654 *
1655 * EDIT_GetPasswordPointer_SL
1656 *
1657 * note: caller should free the (optionally) allocated buffer
1658 *
1659 */
1660 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1661 {
1662 if (es->style & ES_PASSWORD) {
1663 INT len = get_text_length(es);
1664 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1665 text[len] = '\0';
1666 while(len) text[--len] = es->password_char;
1667 return text;
1668 } else
1669 return es->text;
1670 }
1671
1672
1673 /*********************************************************************
1674 *
1675 * EDIT_LockBuffer
1676 *
1677 * This acts as a LocalLock16(), but it locks only once. This way
1678 * you can call it whenever you like, without unlocking.
1679 *
1680 * Initially the edit control allocates a HLOCAL32 buffer
1681 * (32 bit linear memory handler). However, 16 bit application
1682 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1683 * handler). From that moment on we have to keep using this 16 bit memory
1684 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1685 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1686 * conversion.
1687 *
1688 */
1689 static void EDIT_LockBuffer(EDITSTATE *es)
1690 {
1691 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
1692 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1693
1694 if (!es->text) {
1695 CHAR *textA = NULL;
1696 UINT countA = 0;
1697 BOOL _16bit = FALSE;
1698
1699 if(es->hloc32W)
1700 {
1701 if(es->hloc32A)
1702 {
1703 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1704 textA = LocalLock(es->hloc32A);
1705 countA = strlen(textA) + 1;
1706 }
1707 else if(es->hloc16)
1708 {
1709 HANDLE16 oldDS = stack16->ds;
1710 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1711 stack16->ds = hInstance;
1712 textA = MapSL(LocalLock16(es->hloc16));
1713 stack16->ds = oldDS;
1714 countA = strlen(textA) + 1;
1715 _16bit = TRUE;
1716 }
1717 }
1718 else {
1719 ERR("no buffer ... please report\n");
1720 return;
1721 }
1722
1723 if(textA)
1724 {
1725 HLOCAL hloc32W_new;
1726 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1727 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1728 if(countW_new > es->buffer_size + 1)
1729 {
1730 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1731 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1732 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1733 if(hloc32W_new)
1734 {
1735 es->hloc32W = hloc32W_new;
1736 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1737 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1738 }
1739 else
1740 WARN("FAILED! Will synchronize partially\n");
1741 }
1742 }
1743
1744 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1745 es->text = LocalLock(es->hloc32W);
1746
1747 if(textA)
1748 {
1749 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1750 if(_16bit)
1751 {
1752 HANDLE16 oldDS = stack16->ds;
1753 stack16->ds = hInstance;
1754 LocalUnlock16(es->hloc16);
1755 stack16->ds = oldDS;
1756 }
1757 else
1758 LocalUnlock(es->hloc32A);
1759 }
1760 }
1761 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1762 es->lock_count++;
1763 }
1764
1765
1766 /*********************************************************************
1767 *
1768 * EDIT_SL_InvalidateText
1769 *
1770 * Called from EDIT_InvalidateText().
1771 * Does the job for single-line controls only.
1772 *
1773 */
1774 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1775 {
1776 RECT line_rect;
1777 RECT rc;
1778
1779 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1780 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1781 EDIT_UpdateText(es, &rc, TRUE);
1782 }
1783
1784
1785 /*********************************************************************
1786 *
1787 * EDIT_ML_InvalidateText
1788 *
1789 * Called from EDIT_InvalidateText().
1790 * Does the job for multi-line controls only.
1791 *
1792 */
1793 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1794 {
1795 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1796 INT sl = EDIT_EM_LineFromChar(es, start);
1797 INT el = EDIT_EM_LineFromChar(es, end);
1798 INT sc;
1799 INT ec;
1800 RECT rc1;
1801 RECT rcWnd;
1802 RECT rcLine;
1803 RECT rcUpdate;
1804 INT l;
1805
1806 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1807 return;
1808
1809 sc = start - EDIT_EM_LineIndex(es, sl);
1810 ec = end - EDIT_EM_LineIndex(es, el);
1811 if (sl < es->y_offset) {
1812 sl = es->y_offset;
1813 sc = 0;
1814 }
1815 if (el > es->y_offset + vlc) {
1816 el = es->y_offset + vlc;
1817 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1818 }
1819 GetClientRect(es->hwndSelf, &rc1);
1820 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1821 if (sl == el) {
1822 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1823 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1824 EDIT_UpdateText(es, &rcUpdate, TRUE);
1825 } else {
1826 EDIT_GetLineRect(es, sl, sc,
1827 EDIT_EM_LineLength(es,
1828 EDIT_EM_LineIndex(es, sl)),
1829 &rcLine);
1830 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1831 EDIT_UpdateText(es, &rcUpdate, TRUE);
1832 for (l = sl + 1 ; l < el ; l++) {
1833 EDIT_GetLineRect(es, l, 0,
1834 EDIT_EM_LineLength(es,
1835 EDIT_EM_LineIndex(es, l)),
1836 &rcLine);
1837 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1838 EDIT_UpdateText(es, &rcUpdate, TRUE);
1839 }
1840 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1841 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1842 EDIT_UpdateText(es, &rcUpdate, TRUE);
1843 }
1844 }
1845
1846
1847 /*********************************************************************
1848 *
1849 * EDIT_InvalidateText
1850 *
1851 * Invalidate the text from offset start up to, but not including,
1852 * offset end. Useful for (re)painting the selection.
1853 * Regions outside the linewidth are not invalidated.
1854 * end == -1 means end == TextLength.
1855 * start and end need not be ordered.
1856 *
1857 */
1858 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1859 {
1860 if (end == start)
1861 return;
1862
1863 if (end == -1)
1864 end = get_text_length(es);
1865
1866 if (end < start) {
1867 INT tmp = start;
1868 start = end;
1869 end = tmp;
1870 }
1871
1872 if (es->style & ES_MULTILINE)
1873 EDIT_ML_InvalidateText(es, start, end);
1874 else
1875 EDIT_SL_InvalidateText(es, start, end);
1876 }
1877
1878
1879 /*********************************************************************
1880 *
1881 * EDIT_MakeFit
1882 *
1883 * Try to fit size + 1 characters in the buffer.
1884 */
1885 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1886 {
1887 HLOCAL hNew32W;
1888
1889 if (size <= es->buffer_size)
1890 return TRUE;
1891
1892 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1893
1894 /* Force edit to unlock it's buffer. es->text now NULL */
1895 EDIT_UnlockBuffer(es, TRUE);
1896
1897 if (es->hloc32W) {
1898 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1899 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1900 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1901 es->hloc32W = hNew32W;
1902 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1903 }
1904 }
1905
1906 EDIT_LockBuffer(es);
1907
1908 if (es->buffer_size < size) {
1909 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1910 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1911 return FALSE;
1912 } else {
1913 TRACE("We now have %d+1\n", es->buffer_size);
1914 return TRUE;
1915 }
1916 }
1917
1918
1919 /*********************************************************************
1920 *
1921 * EDIT_MakeUndoFit
1922 *
1923 * Try to fit size + 1 bytes in the undo buffer.
1924 *
1925 */
1926 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1927 {
1928 UINT alloc_size;
1929
1930 if (size <= es->undo_buffer_size)
1931 return TRUE;
1932
1933 TRACE("trying to ReAlloc to %d+1\n", size);
1934
1935 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1936 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1937 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1938 return TRUE;
1939 }
1940 else
1941 {
1942 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1943 return FALSE;
1944 }
1945 }
1946
1947
1948 /*********************************************************************
1949 *
1950 * EDIT_MoveBackward
1951 *
1952 */
1953 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1954 {
1955 INT e = es->selection_end;
1956
1957 if (e) {
1958 e--;
1959 if ((es->style & ES_MULTILINE) && e &&
1960 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1961 e--;
1962 if (e && (es->text[e - 1] == '\r'))
1963 e--;
1964 }
1965 }
1966 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1967 EDIT_EM_ScrollCaret(es);
1968 }
1969
1970
1971 /*********************************************************************
1972 *
1973 * EDIT_MoveDown_ML
1974 *
1975 * Only for multi line controls
1976 * Move the caret one line down, on a column with the nearest
1977 * x coordinate on the screen (might be a different column).
1978 *
1979 */
1980 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1981 {
1982 INT s = es->selection_start;
1983 INT e = es->selection_end;
1984 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1985 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1986 INT x = (short)LOWORD(pos);
1987 INT y = (short)HIWORD(pos);
1988
1989 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1990 if (!extend)
1991 s = e;
1992 EDIT_EM_SetSel(es, s, e, after_wrap);
1993 EDIT_EM_ScrollCaret(es);
1994 }
1995
1996
1997 /*********************************************************************
1998 *
1999 * EDIT_MoveEnd
2000 *
2001 */
2002 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
2003 {
2004 BOOL after_wrap = FALSE;
2005 INT e;
2006
2007 /* Pass a high value in x to make sure of receiving the end of the line */
2008 if (es->style & ES_MULTILINE)
2009 e = EDIT_CharFromPos(es, 0x3fffffff,
2010 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2011 else
2012 e = get_text_length(es);
2013 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2014 EDIT_EM_ScrollCaret(es);
2015 }
2016
2017
2018 /*********************************************************************
2019 *
2020 * EDIT_MoveForward
2021 *
2022 */
2023 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2024 {
2025 INT e = es->selection_end;
2026
2027 if (es->text[e]) {
2028 e++;
2029 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2030 if (es->text[e] == '\n')
2031 e++;
2032 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2033 e += 2;
2034 }
2035 }
2036 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2037 EDIT_EM_ScrollCaret(es);
2038 }
2039
2040
2041 /*********************************************************************
2042 *
2043 * EDIT_MoveHome
2044 *
2045 * Home key: move to beginning of line.
2046 *
2047 */
2048 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
2049 {
2050 INT e;
2051
2052 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2053 if (es->style & ES_MULTILINE)
2054 e = EDIT_CharFromPos(es, -es->x_offset,
2055 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2056 else
2057 e = 0;
2058 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2059 EDIT_EM_ScrollCaret(es);
2060 }
2061
2062
2063 /*********************************************************************
2064 *
2065 * EDIT_MovePageDown_ML
2066 *
2067 * Only for multi line controls
2068 * Move the caret one page down, on a column with the nearest
2069 * x coordinate on the screen (might be a different column).
2070 *
2071 */
2072 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2073 {
2074 INT s = es->selection_start;
2075 INT e = es->selection_end;
2076 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2077 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2078 INT x = (short)LOWORD(pos);
2079 INT y = (short)HIWORD(pos);
2080
2081 e = EDIT_CharFromPos(es, x,
2082 y + (es->format_rect.bottom - es->format_rect.top),
2083 &after_wrap);
2084 if (!extend)
2085 s = e;
2086 EDIT_EM_SetSel(es, s, e, after_wrap);
2087 EDIT_EM_ScrollCaret(es);
2088 }
2089
2090
2091 /*********************************************************************
2092 *
2093 * EDIT_MovePageUp_ML
2094 *
2095 * Only for multi line controls
2096 * Move the caret one page up, on a column with the nearest
2097 * x coordinate on the screen (might be a different column).
2098 *
2099 */
2100 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2101 {
2102 INT s = es->selection_start;
2103 INT e = es->selection_end;
2104 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2105 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2106 INT x = (short)LOWORD(pos);
2107 INT y = (short)HIWORD(pos);
2108
2109 e = EDIT_CharFromPos(es, x,
2110 y - (es->format_rect.bottom - es->format_rect.top),
2111 &after_wrap);
2112 if (!extend)
2113 s = e;
2114 EDIT_EM_SetSel(es, s, e, after_wrap);
2115 EDIT_EM_ScrollCaret(es);
2116 }
2117
2118
2119 /*********************************************************************
2120 *
2121 * EDIT_MoveUp_ML
2122 *
2123 * Only for multi line controls
2124 * Move the caret one line up, on a column with the nearest
2125 * x coordinate on the screen (might be a different column).
2126 *
2127 */
2128 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2129 {
2130 INT s = es->selection_start;
2131 INT e = es->selection_end;
2132 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2133 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2134 INT x = (short)LOWORD(pos);
2135 INT y = (short)HIWORD(pos);
2136
2137 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2138 if (!extend)
2139 s = e;
2140 EDIT_EM_SetSel(es, s, e, after_wrap);
2141 EDIT_EM_ScrollCaret(es);
2142 }
2143
2144
2145 /*********************************************************************
2146 *
2147 * EDIT_MoveWordBackward
2148 *
2149 */
2150 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2151 {
2152 INT s = es->selection_start;
2153 INT e = es->selection_end;
2154 INT l;
2155 INT ll;
2156 INT li;
2157
2158 l = EDIT_EM_LineFromChar(es, e);
2159 ll = EDIT_EM_LineLength(es, e);
2160 li = EDIT_EM_LineIndex(es, l);
2161 if (e - li == 0) {
2162 if (l) {
2163 li = EDIT_EM_LineIndex(es, l - 1);
2164 e = li + EDIT_EM_LineLength(es, li);
2165 }
2166 } else {
2167 e = li + (INT)EDIT_CallWordBreakProc(es,
2168 li, e - li, ll, WB_LEFT);
2169 }
2170 if (!extend)
2171 s = e;
2172 EDIT_EM_SetSel(es, s, e, FALSE);
2173 EDIT_EM_ScrollCaret(es);
2174 }
2175
2176
2177 /*********************************************************************
2178 *
2179 * EDIT_MoveWordForward
2180 *
2181 */
2182 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2183 {
2184 INT s = es->selection_start;
2185 INT e = es->selection_end;
2186 INT l;
2187 INT ll;
2188 INT li;
2189
2190 l = EDIT_EM_LineFromChar(es, e);
2191 ll = EDIT_EM_LineLength(es, e);
2192 li = EDIT_EM_LineIndex(es, l);
2193 if (e - li == ll) {
2194 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2195 e = EDIT_EM_LineIndex(es, l + 1);
2196 } else {
2197 e = li + EDIT_CallWordBreakProc(es,
2198 li, e - li + 1, ll, WB_RIGHT);
2199 }
2200 if (!extend)
2201 s = e;
2202 EDIT_EM_SetSel(es, s, e, FALSE);
2203 EDIT_EM_ScrollCaret(es);
2204 }
2205
2206
2207 /*********************************************************************
2208 *
2209 * EDIT_PaintLine
2210 *
2211 */
2212 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2213 {
2214 INT s = es->selection_start;
2215 INT e = es->selection_end;
2216 INT li;
2217 INT ll;
2218 INT x;
2219 INT y;
2220 LRESULT pos;
2221
2222 if (es->style & ES_MULTILINE) {
2223 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2224 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2225 return;
2226 } else if (line)
2227 return;
2228
2229 TRACE("line=%d\n", line);
2230
2231 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2232 x = (short)LOWORD(pos);
2233 y = (short)HIWORD(pos);
2234 li = EDIT_EM_LineIndex(es, line);
2235 ll = EDIT_EM_LineLength(es, li);
2236 s = min(es->selection_start, es->selection_end);
2237 e = max(es->selection_start, es->selection_end);
2238 s = min(li + ll, max(li, s));
2239 e = min(li + ll, max(li, e));
2240 if (rev && (s != e) &&
2241 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2242 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2243 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2244 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2245 } else
2246 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2247 }
2248
2249
2250 /*********************************************************************
2251 *
2252 * EDIT_PaintText
2253 *
2254 */
2255 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2256 {
2257 COLORREF BkColor;
2258 COLORREF TextColor;
2259 LOGFONTW underline_font;
2260 HFONT hUnderline = 0;
2261 HFONT old_font = 0;
2262 INT ret;
2263 INT li;
2264 INT BkMode;
2265 SIZE size;
2266
2267 if (!count)
2268 return 0;
2269 BkMode = GetBkMode(dc);
2270 BkColor = GetBkColor(dc);
2271 TextColor = GetTextColor(dc);
2272 if (rev) {
2273 if (es->composition_len == 0)
2274 {
2275 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2276 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2277 SetBkMode( dc, OPAQUE);
2278 }
2279 else
2280 {
2281 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2282 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2283 underline_font.lfUnderline = TRUE;
2284 hUnderline = CreateFontIndirectW(&underline_font);
2285 old_font = SelectObject(dc,hUnderline);
2286 }
2287 }
2288 li = EDIT_EM_LineIndex(es, line);
2289 if (es->style & ES_MULTILINE) {
2290 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2291 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2292 } else {
2293 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2294 TextOutW(dc, x, y, text + li + col, count);
2295 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2296 ret = size.cx;
2297 if (es->style & ES_PASSWORD)
2298 HeapFree(GetProcessHeap(), 0, text);
2299 }
2300 if (rev) {
2301 if (es->composition_len == 0)
2302 {
2303 SetBkColor(dc, BkColor);
2304 SetTextColor(dc, TextColor);
2305 SetBkMode( dc, BkMode);
2306 }
2307 else
2308 {
2309 if (old_font)
2310 SelectObject(dc,old_font);
2311 if (hUnderline)
2312 DeleteObject(hUnderline);
2313 }
2314 }
2315 return ret;
2316 }
2317
2318
2319 /*********************************************************************
2320 *
2321 * EDIT_SetCaretPos
2322 *
2323 */
2324 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2325 BOOL after_wrap)
2326 {
2327 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2328 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2329 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2330 }
2331
2332
2333 /*********************************************************************
2334 *
2335 * EDIT_AdjustFormatRect
2336 *
2337 * Adjusts the format rectangle for the current font and the
2338 * current client rectangle.
2339 *
2340 */
2341 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2342 {
2343 RECT ClientRect;
2344
2345 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2346 if (es->style & ES_MULTILINE)
2347 {
2348 INT fw, vlc, max_x_offset, max_y_offset;
2349
2350 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2351 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2352
2353 /* correct es->x_offset */
2354 fw = es->format_rect.right - es->format_rect.left;
2355 max_x_offset = es->text_width - fw;
2356 if(max_x_offset < 0) max_x_offset = 0;
2357 if(es->x_offset > max_x_offset)
2358 es->x_offset = max_x_offset;
2359
2360 /* correct es->y_offset */
2361 max_y_offset = es->line_count - vlc;
2362 if(max_y_offset < 0) max_y_offset = 0;
2363 if(es->y_offset > max_y_offset)
2364 es->y_offset = max_y_offset;
2365
2366 /* force scroll info update */
2367 EDIT_UpdateScrollInfo(es);
2368 }
2369 else
2370 /* Windows doesn't care to fix text placement for SL controls */
2371 es->format_rect.bottom = es->format_rect.top + es->line_height;
2372
2373 /* Always stay within the client area */
2374 GetClientRect(es->hwndSelf, &ClientRect);
2375 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2376
2377 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2378 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2379
2380 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2381 }
2382
2383
2384 /*********************************************************************
2385 *
2386 * EDIT_SetRectNP
2387 *
2388 * note: this is not (exactly) the handler called on EM_SETRECTNP
2389 * it is also used to set the rect of a single line control
2390 *
2391 */
2392 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2393 {
2394 LONG_PTR ExStyle;
2395 INT bw, bh;
2396 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2397
2398 CopyRect(&es->format_rect, rc);
2399
2400 if (ExStyle & WS_EX_CLIENTEDGE) {
2401 es->format_rect.left++;
2402 es->format_rect.right--;
2403
2404 if (es->format_rect.bottom - es->format_rect.top
2405 >= es->line_height + 2)
2406 {
2407 es->format_rect.top++;
2408 es->format_rect.bottom--;
2409 }
2410 }
2411 else if (es->style & WS_BORDER) {
2412 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2413 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2414 es->format_rect.left += bw;
2415 es->format_rect.right -= bw;
2416 if (es->format_rect.bottom - es->format_rect.top
2417 >= es->line_height + 2 * bh)
2418 {
2419 es->format_rect.top += bh;
2420 es->format_rect.bottom -= bh;
2421 }
2422 }
2423
2424 es->format_rect.left += es->left_margin;
2425 es->format_rect.right -= es->right_margin;
2426 EDIT_AdjustFormatRect(es);
2427 }
2428
2429
2430 /*********************************************************************
2431 *
2432 * EDIT_UnlockBuffer
2433 *
2434 */
2435 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2436 {
2437
2438 /* Edit window might be already destroyed */
2439 if(!IsWindow(es->hwndSelf))
2440 {
2441 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2442 return;
2443 }
2444
2445 if (!es->lock_count) {
2446 ERR("lock_count == 0 ... please report\n");
2447 return;
2448 }
2449 if (!es->text) {
2450 ERR("es->text == 0 ... please report\n");
2451 return;
2452 }
2453
2454 if (force || (es->lock_count == 1)) {
2455 if (es->hloc32W) {
2456 CHAR *textA = NULL;
2457 UINT countA = 0;
2458 UINT countW = get_text_length(es) + 1;
2459 STACK16FRAME* stack16 = NULL;
2460 HANDLE16 oldDS = 0;
2461
2462 if(es->hloc32A)
2463 {
2464 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2465 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2466 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2467 countA = LocalSize(es->hloc32A);
2468 if(countA_new > countA)
2469 {
2470 HLOCAL hloc32A_new;
2471 UINT alloc_size = ROUND_TO_GROW(countA_new);
2472 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2473 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2474 if(hloc32A_new)
2475 {
2476 es->hloc32A = hloc32A_new;
2477 countA = LocalSize(hloc32A_new);
2478 TRACE("Real new size %d bytes\n", countA);
2479 }
2480 else
2481 WARN("FAILED! Will synchronize partially\n");
2482 }
2483 textA = LocalLock(es->hloc32A);
2484 }
2485 else if(es->hloc16)
2486 {
2487 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2488
2489 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2490 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2491
2492 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2493 oldDS = stack16->ds;
2494 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2495
2496 countA = LocalSize16(es->hloc16);
2497 if(countA_new > countA)
2498 {
2499 HLOCAL16 hloc16_new;
2500 UINT alloc_size = ROUND_TO_GROW(countA_new);
2501 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2502 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2503 if(hloc16_new)
2504 {
2505 es->hloc16 = hloc16_new;
2506 countA = LocalSize16(hloc16_new);
2507 TRACE("Real new size %d bytes\n", countA);
2508 }
2509 else
2510 WARN("FAILED! Will synchronize partially\n");
2511 }
2512 textA = MapSL(LocalLock16(es->hloc16));
2513 }
2514
2515 if(textA)
2516 {
2517 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2518 if(stack16)
2519 LocalUnlock16(es->hloc16);
2520 else
2521 LocalUnlock(es->hloc32A);
2522 }
2523
2524 if (stack16) stack16->ds = oldDS;
2525 LocalUnlock(es->hloc32W);
2526 es->text = NULL;
2527 }
2528 else {
2529 ERR("no buffer ... please report\n");
2530 return;
2531 }
2532 }
2533 es->lock_count--;
2534 }
2535
2536
2537 /*********************************************************************
2538 *
2539 * EDIT_UpdateScrollInfo
2540 *
2541 */
2542 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2543 {
2544 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2545 {
2546 SCROLLINFO si;
2547 si.cbSize = sizeof(SCROLLINFO);
2548 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2549 si.nMin = 0;
2550 si.nMax = es->line_count - 1;
2551 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2552 si.nPos = es->y_offset;
2553 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2554 si.nMin, si.nMax, si.nPage, si.nPos);
2555 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2556 }
2557
2558 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2559 {
2560 SCROLLINFO si;
2561 si.cbSize = sizeof(SCROLLINFO);
2562 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2563 si.nMin = 0;
2564 si.nMax = es->text_width - 1;
2565 si.nPage = es->format_rect.right - es->format_rect.left;
2566 si.nPos = es->x_offset;
2567 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2568 si.nMin, si.nMax, si.nPage, si.nPos);
2569 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2570 }
2571 }
2572
2573 /*********************************************************************
2574 *
2575 * EDIT_WordBreakProc
2576 *
2577 * Find the beginning of words.
2578 * Note: unlike the specs for a WordBreakProc, this function only
2579 * allows to be called without linebreaks between s[0] up to
2580 * s[count - 1]. Remember it is only called
2581 * internally, so we can decide this for ourselves.
2582 *
2583 */
2584 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2585 {
2586 INT ret = 0;
2587
2588 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2589
2590 if(!s) return 0;
2591
2592 switch (action) {
2593 case WB_LEFT:
2594 if (!count)
2595 break;
2596 if (index)
2597 index--;
2598 if (s[index] == ' ') {
2599 while (index && (s[index] == ' '))
2600 index--;
2601 if (index) {
2602 while (index && (s[index] != ' '))
2603 index--;
2604 if (s[index] == ' ')
2605 index++;
2606 }
2607 } else {
2608 while (index && (s[index] != ' '))
2609 index--;
2610 if (s[index] == ' ')
2611 index++;
2612 }
2613 ret = index;
2614 break;
2615 case WB_RIGHT:
2616 if (!count)
2617 break;
2618 if (index)
2619 index--;
2620 if (s[index] == ' ')
2621 while ((index < count) && (s[index] == ' ')) index++;
2622 else {
2623 while (s[index] && (s[index] != ' ') && (index < count))
2624 index++;
2625 while ((s[index] == ' ') && (index < count)) index++;
2626 }
2627 ret = index;
2628 break;
2629 case WB_ISDELIMITER:
2630 ret = (s[index] == ' ');
2631 break;
2632 default:
2633 ERR("unknown action code, please report !\n");
2634 break;
2635 }
2636 return ret;
2637 }
2638
2639
2640 /*********************************************************************
2641 *
2642 * EM_CHARFROMPOS
2643 *
2644 * returns line number (not index) in high-order word of result.
2645 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2646 * to Richedit, not to the edit control. Original documentation is valid.
2647 * FIXME: do the specs mean to return -1 if outside client area or
2648 * if outside formatting rectangle ???
2649 *
2650 */
2651 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2652 {
2653 POINT pt;
2654 RECT rc;
2655 INT index;
2656
2657 pt.x = x;
2658 pt.y = y;
2659 GetClientRect(es->hwndSelf, &rc);
2660 if (!PtInRect(&rc, pt))
2661 return -1;
2662
2663 index = EDIT_CharFromPos(es, x, y, NULL);
2664 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2665 }
2666
2667
2668 /*********************************************************************
2669 *
2670 * EM_FMTLINES
2671 *
2672 * Enable or disable soft breaks.
2673 *
2674 * This means: insert or remove the soft linebreak character (\r\r\n).
2675 * Take care to check if the text still fits the buffer after insertion.
2676 * If not, notify with EN_ERRSPACE.
2677 *
2678 */
2679 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2680 {
2681 es->flags &= ~EF_USE_SOFTBRK;
2682 if (add_eol) {
2683 es->flags |= EF_USE_SOFTBRK;
2684 FIXME("soft break enabled, not implemented\n");
2685 }
2686 return add_eol;
2687 }
2688
2689
2690 /*********************************************************************
2691 *
2692 * EM_GETHANDLE
2693 *
2694 * Hopefully this won't fire back at us.
2695 * We always start with a fixed buffer in the local heap.
2696 * Despite of the documentation says that the local heap is used
2697 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2698 * buffer on the local heap.
2699 *
2700 */
2701 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2702 {
2703 HLOCAL hLocal;
2704
2705 if (!(es->style & ES_MULTILINE))
2706 return 0;
2707
2708 if(es->is_unicode)
2709 hLocal = es->hloc32W;
2710 else
2711 {
2712 if(!es->hloc32A)
2713 {
2714 CHAR *textA;
2715 UINT countA, alloc_size;
2716 TRACE("Allocating 32-bit ANSI alias buffer\n");
2717 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2718 alloc_size = ROUND_TO_GROW(countA);
2719 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2720 {
2721 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2722 return 0;
2723 }
2724 textA = LocalLock(es->hloc32A);
2725 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2726 LocalUnlock(es->hloc32A);
2727 }
2728 hLocal = es->hloc32A;
2729 }
2730
2731 es->flags |= EF_APP_HAS_HANDLE;
2732 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2733 return hLocal;
2734 }
2735
2736
2737 /*********************************************************************
2738 *
2739 * EM_GETHANDLE16
2740 *
2741 * Hopefully this won't fire back at us.
2742 * We always start with a buffer in 32 bit linear memory.
2743 * However, with this message a 16 bit application requests
2744 * a handle of 16 bit local heap memory, where it expects to find
2745 * the text.
2746 * It's a pitty that from this moment on we have to use this
2747 * local heap, because applications may rely on the handle
2748 * in the future.
2749 *
2750 * In this function we'll try to switch to local heap.
2751 */
2752 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2753 {
2754 CHAR *textA;
2755 UINT countA, alloc_size;
2756 STACK16FRAME* stack16;
2757 HANDLE16 oldDS;
2758
2759 if (!(es->style & ES_MULTILINE))
2760 return 0;
2761
2762 if (es->hloc16)
2763 return es->hloc16;
2764
2765 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2766 oldDS = stack16->ds;
2767 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2768
2769 if (!LocalHeapSize16()) {
2770
2771 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2772 ERR("could not initialize local heap\n");
2773 goto done;
2774 }
2775 TRACE("local heap initialized\n");
2776 }
2777
2778 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2779 alloc_size = ROUND_TO_GROW(countA);
2780
2781 TRACE("Allocating 16-bit ANSI alias buffer\n");
2782 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2783 ERR("could not allocate new 16 bit buffer\n");
2784 goto done;
2785 }
2786
2787 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2788 ERR("could not lock new 16 bit buffer\n");
2789 LocalFree16(es->hloc16);
2790 es->hloc16 = 0;
2791 goto done;
2792 }
2793
2794 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2795 LocalUnlock16(es->hloc16);
2796 es->flags |= EF_APP_HAS_HANDLE;
2797
2798 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2799
2800 done:
2801 stack16->ds = oldDS;
2802 return es->hloc16;
2803 }
2804
2805
2806 /*********************************************************************
2807 *
2808 * EM_GETLINE
2809 *
2810 */
2811 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2812 {
2813 LPWSTR src;
2814 INT line_len, dst_len;
2815 INT i;
2816
2817 if (es->style & ES_MULTILINE) {
2818 if (line >= es->line_count)
2819 return 0;
2820 } else
2821 line = 0;
2822 i = EDIT_EM_LineIndex(es, line);
2823 src = es->text + i;
2824 line_len = EDIT_EM_LineLength(es, i);
2825 dst_len = *(WORD *)dst;
2826 if(unicode)
2827 {
2828 if(dst_len <= line_len)
2829 {
2830 memcpy(dst, src, dst_len * sizeof(WCHAR));
2831 return dst_len;
2832 }
2833 else /* Append 0 if enough space */
2834 {
2835 memcpy(dst, src, line_len * sizeof(WCHAR));
2836 dst[line_len] = 0;
2837 return line_len;
2838 }
2839 }
2840 else
2841 {
2842 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2843 if(!ret && line_len) /* Insufficient buffer size */
2844 return dst_len;
2845 if(ret < dst_len) /* Append 0 if enough space */
2846 ((LPSTR)dst)[ret] = 0;
2847 return ret;
2848 }
2849 }
2850
2851
2852 /*********************************************************************
2853 *
2854 * EM_GETSEL
2855 *
2856 */
2857 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2858 {
2859 UINT s = es->selection_start;
2860 UINT e = es->selection_end;
2861
2862 ORDER_UINT(s, e);
2863 if (start)
2864 *start = s;
2865 if (end)
2866 *end = e;
2867 return MAKELONG(s, e);
2868 }
2869
2870
2871 /*********************************************************************
2872 *
2873 * EM_GETTHUMB
2874 *
2875 * FIXME: is this right ? (or should it be only VSCROLL)
2876 * (and maybe only for edit controls that really have their
2877 * own scrollbars) (and maybe only for multiline controls ?)
2878 * All in all: very poorly documented
2879 *
2880 */
2881 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2882 {
2883 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2884 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2885 }
2886
2887
2888 /*********************************************************************
2889 *
2890 * EM_LINEFROMCHAR
2891 *
2892 */
2893 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2894 {
2895 INT line;
2896 LINEDEF *line_def;
2897
2898 if (!(es->style & ES_MULTILINE))
2899 return 0;
2900 if (index > (INT)get_text_length(es))
2901 return es->line_count - 1;
2902 if (index == -1)
2903 index = min(es->selection_start, es->selection_end);
2904
2905 line = 0;
2906 line_def = es->first_line_def;
2907 index -= line_def->length;
2908 while ((index >= 0) && line_def->next) {
2909 line++;
2910 line_def = line_def->next;
2911 index -= line_def->length;
2912 }
2913 return line;
2914 }
2915
2916
2917 /*********************************************************************
2918 *
2919 * EM_LINEINDEX
2920 *
2921 */
2922 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2923 {
2924 INT line_index;
2925 LINEDEF *line_def;
2926
2927 if (!(es->style & ES_MULTILINE))
2928 return 0;
2929 if (line >= es->line_count)
2930 return -1;
2931
2932 line_index = 0;
2933 line_def = es->first_line_def;
2934 if (line == -1) {
2935 INT index = es->selection_end - line_def->length;
2936 while ((index >= 0) && line_def->next) {
2937 line_index += line_def->length;
2938 line_def = line_def->next;
2939 index -= line_def->length;
2940 }
2941 } else {
2942 while (line > 0) {
2943 line_index += line_def->length;
2944 line_def = line_def->next;
2945 line--;
2946 }
2947 }
2948 return line_index;
2949 }
2950
2951
2952 /*********************************************************************
2953 *
2954 * EM_LINELENGTH
2955 *
2956 */
2957 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2958 {
2959 LINEDEF *line_def;
2960
2961 if (!(es->style & ES_MULTILINE))
2962 return get_text_length(es);
2963
2964 if (index == -1) {
2965 /* get the number of remaining non-selected chars of selected lines */
2966 INT32 l; /* line number */
2967 INT32 li; /* index of first char in line */
2968 INT32 count;
2969 l = EDIT_EM_LineFromChar(es, es->selection_start);
2970 /* # chars before start of selection area */
2971 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2972 l = EDIT_EM_LineFromChar(es, es->selection_end);
2973 /* # chars after end of selection */
2974 li = EDIT_EM_LineIndex(es, l);
2975 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2976 return count;
2977 }
2978 line_def = es->first_line_def;
2979 index -= line_def->length;
2980 while ((index >= 0) && line_def->next) {
2981 line_def = line_def->next;
2982 index -= line_def->length;
2983 }
2984 return line_def->net_length;
2985 }
2986
2987
2988 /*********************************************************************
2989 *
2990 * EM_LINESCROLL
2991 *
2992 * NOTE: dx is in average character widths, dy - in lines;
2993 *
2994 */
2995 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2996 {
2997 if (!(es->style & ES_MULTILINE))
2998 return FALSE;
2999
3000 dx *= es->char_width;
3001 return EDIT_EM_LineScroll_internal(es, dx, dy);
3002 }
3003
3004 /*********************************************************************
3005 *
3006 * EDIT_EM_LineScroll_internal
3007 *
3008 * Version of EDIT_EM_LineScroll for internal use.
3009 * It doesn't refuse if ES_MULTILINE is set and assumes that
3010 * dx is in pixels, dy - in lines.
3011 *
3012 */
3013 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
3014 {
3015 INT nyoff;
3016 INT x_offset_in_pixels;
3017 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3018 es->line_height;
3019
3020 if (es->style & ES_MULTILINE)
3021 {
3022 x_offset_in_pixels = es->x_offset;
3023 }
3024 else
3025 {
3026 dy = 0;
3027 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3028 }
3029
3030 if (-dx > x_offset_in_pixels)
3031 dx = -x_offset_in_pixels;
3032 if (dx > es->text_width - x_offset_in_pixels)
3033 dx = es->text_width - x_offset_in_pixels;
3034 nyoff = max(0, es->y_offset + dy);
3035 if (nyoff >= es->line_count - lines_per_page)
3036 nyoff = max(0, es->line_count - lines_per_page);
3037 dy = (es->y_offset - nyoff) * es->line_height;
3038 if (dx || dy) {
3039 RECT rc1;
3040 RECT rc;
3041
3042 es->y_offset = nyoff;
3043 if(es->style & ES_MULTILINE)
3044 es->x_offset += dx;
3045 else
3046 es->x_offset += dx / es->char_width;
3047
3048 GetClientRect(es->hwndSelf, &rc1);
3049 IntersectRect(&rc, &rc1, &es->format_rect);
3050 ScrollWindowEx(es->hwndSelf, -dx, dy,
3051 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3052 /* force scroll info update */
3053 EDIT_UpdateScrollInfo(es);
3054 }
3055 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3056 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3057 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3058 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3059 return TRUE;
3060 }
3061
3062
3063 /*********************************************************************
3064 *
3065 * EM_POSFROMCHAR
3066 *
3067 */
3068 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3069 {
3070 INT len = get_text_length(es);
3071 INT l;
3072 INT li;
3073 INT x;
3074 INT y = 0;
3075 INT w;
3076 INT lw = 0;
3077 INT ll = 0;
3078 HDC dc;
3079 HFONT old_font = 0;
3080 SIZE size;
3081 LINEDEF *line_def;
3082
3083 index = min(index, len);
3084 dc = GetDC(es->hwndSelf);
3085 if (es->font)
3086 old_font = SelectObject(dc, es->font);
3087 if (es->style & ES_MULTILINE) {
3088 l = EDIT_EM_LineFromChar(es, index);
3089 y = (l - es->y_offset) * es->line_height;
3090 li = EDIT_EM_LineIndex(es, l);
3091 if (after_wrap && (li == index) && l) {
3092 INT l2 = l - 1;
3093 line_def = es->first_line_def;
3094 while (l2) {
3095 line_def = line_def->next;
3096 l2--;
3097 }
3098 if (line_def->ending == END_WRAP) {
3099 l--;
3100 y -= es->line_height;
3101 li = EDIT_EM_LineIndex(es, l);
3102 }
3103 }
3104
3105 line_def = es->first_line_def;
3106 while (line_def->index != li)
3107 line_def = line_def->next;
3108
3109 ll = line_def->net_length;
3110 lw = line_def->width;
3111
3112 w = es->format_rect.right - es->format_rect.left;
3113 if (es->style & ES_RIGHT)
3114 {
3115 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3116 es->tabs_count, es->tabs)) - es->x_offset;
3117 x = w - x;
3118 }
3119 else if (es->style & ES_CENTER)
3120 {
3121 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3122 es->tabs_count, es->tabs)) - es->x_offset;
3123 x += (w - lw) / 2;
3124 }
3125 else /* ES_LEFT */
3126 {
3127 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3128 es->tabs_count, es->tabs)) - es->x_offset;
3129 }
3130 } else {
3131 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3132 if (index < es->x_offset) {
3133 GetTextExtentPoint32W(dc, text + index,
3134 es->x_offset - index, &size);
3135 x = -size.cx;
3136 } else {
3137 GetTextExtentPoint32W(dc, text + es->x_offset,
3138 index - es->x_offset, &size);
3139 x = size.cx;
3140
3141 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3142 {
3143 w = es->format_rect.right - es->format_rect.left;
3144 if (w > es->text_width)
3145 {
3146 if (es->style & ES_RIGHT)
3147 x += w - es->text_width;
3148 else if (es->style & ES_CENTER)
3149 x += (w - es->text_width) / 2;
3150 }
3151 }
3152 }
3153 y = 0;
3154 if (es->style & ES_PASSWORD)
3155 HeapFree(GetProcessHeap(), 0, text);
3156 }
3157 x += es->format_rect.left;
3158 y += es->format_rect.top;
3159 if (es->font)
3160 SelectObject(dc, old_font);
3161 ReleaseDC(es->hwndSelf, dc);
3162 return MAKELONG((INT16)x, (INT16)y);
3163 }
3164
3165
3166 /*********************************************************************
3167 *
3168 * EM_REPLACESEL
3169 *
3170 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3171 *
3172 */
3173 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3174 {
3175 UINT strl = strlenW(lpsz_replace);
3176 UINT tl = get_text_length(es);
3177 UINT utl;
3178 UINT s;
3179 UINT e;
3180 UINT i;
3181 UINT size;
3182 LPWSTR p;
3183 HRGN hrgn = 0;
3184 LPWSTR buf = NULL;
3185 UINT bufl = 0;
3186
3187 TRACE("%s, can_undo %d, send_update %d\n",
3188 debugstr_w(lpsz_replace), can_undo, send_update);
3189
3190 s = es->selection_start;
3191 e = es->selection_end;
3192
3193 if ((s == e) && !strl)
3194 return;
3195
3196 ORDER_UINT(s, e);
3197
3198 size = tl - (e - s) + strl;
3199 if (!size)
3200 es->text_width = 0;
3201
3202 /* Issue the EN_MAXTEXT notification and continue with replacing text
3203 * such that buffer limit is honored. */
3204 if ((honor_limit) && (size > es->buffer_limit)) {
3205 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3206 strl = es->buffer_limit - (tl - (e-s));
3207 }
3208
3209 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3210 return;
3211
3212 if (e != s) {
3213 /* there is something to be deleted */
3214 TRACE("deleting stuff.\n");
3215 bufl = e - s;
3216 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3217 if (!buf) return;
3218 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3219 buf[bufl] = 0; /* ensure 0 termination */
3220 /* now delete */
3221 strcpyW(es->text + s, es->text + e);
3222 text_buffer_changed(es);
3223 }
3224 if (strl) {
3225 /* there is an insertion */
3226 tl = get_text_length(es);
3227 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));
3228 for (p = es->text + tl ; p >= es->text + s ; p--)
3229 p[strl] = p[0];
3230 for (i = 0 , p = es->text + s ; i < strl ; i++)
3231 p[i] = lpsz_replace[i];
3232 if(es->style & ES_UPPERCASE)
3233 CharUpperBuffW(p, strl);
3234 else if(es->style & ES_LOWERCASE)
3235 CharLowerBuffW(p, strl);
3236 text_buffer_changed(es);
3237 }
3238 if (es->style & ES_MULTILINE)
3239 {
3240 INT st = min(es->selection_start, es->selection_end);
3241 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3242
3243 hrgn = CreateRectRgn(0, 0, 0, 0);
3244 EDIT_BuildLineDefs_ML(es, st, st + strl,
3245 strl - abs(es->selection_end - es->selection_start), hrgn);
3246 /* if text is too long undo all changes */
3247 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3248 if (strl)
3249 strcpyW(es->text + e, es->text + e + strl);
3250 if (e != s)
3251 for (i = 0 , p = es->text ; i < e - s ; i++)
3252 p[i + s] = buf[i];
3253 text_buffer_changed(es);
3254 EDIT_BuildLineDefs_ML(es, s, e,
3255 abs(es->selection_end - es->selection_start) - strl, hrgn);
3256 strl = 0;
3257 e = s;
3258 hrgn = CreateRectRgn(0, 0, 0, 0);
3259 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3260 }
3261 }
3262 else {
3263 INT fw = es->format_rect.right - es->format_rect.left;
3264 EDIT_CalcLineWidth_SL(es);
3265 /* remove chars that don't fit */
3266 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3267 while ((es->text_width > fw) && s + strl >= s) {
3268 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3269 strl--;
3270 EDIT_CalcLineWidth_SL(es);
3271 }
3272 text_buffer_changed(es);
3273 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3274 }
3275 }
3276
3277 if (e != s) {
3278 if (can_undo) {
3279 utl = strlenW(es->undo_text);
3280 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3281 /* undo-buffer is extended to the right */
3282 EDIT_MakeUndoFit(es, utl + e - s);
3283 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3284 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3285 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3286 /* undo-buffer is extended to the left */
3287 EDIT_MakeUndoFit(es, utl + e - s);
3288 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3289 p[e - s] = p[0];
3290 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3291 p[i] = buf[i];
3292 es->undo_position = s;
3293 } else {
3294 /* new undo-buffer */
3295 EDIT_MakeUndoFit(es, e - s);
3296 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3297 es->undo_text[e - s] = 0; /* ensure 0 termination */
3298 es->undo_position = s;
3299 }
3300 /* any deletion makes the old insertion-undo invalid */
3301 es->undo_insert_count = 0;
3302 } else
3303 EDIT_EM_EmptyUndoBuffer(es);
3304 }
3305 if (strl) {
3306 if (can_undo) {
3307 if ((s == es->undo_position) ||
3308 ((es->undo_insert_count) &&
3309 (s == es->undo_position + es->undo_insert_count)))
3310 /*
3311 * insertion is new and at delete position or
3312 * an extension to either left or right
3313 */
3314 es->undo_insert_count += strl;
3315 else {
3316 /* new insertion undo */
3317 es->undo_position = s;
3318 es->undo_insert_count = strl;
3319 /* new insertion makes old delete-buffer invalid */
3320 *es->undo_text = '\0';
3321 }
3322 } else
3323 EDIT_EM_EmptyUndoBuffer(es);
3324 }
3325
3326 if (bufl)
3327 HeapFree(GetProcessHeap(), 0, buf);
3328
3329 s += strl;
3330
3331 /* If text has been deleted and we're right or center aligned then scroll rightward */
3332 if (es->style & (ES_RIGHT | ES_CENTER))
3333 {
3334 INT delta = strl - abs(es->selection_end - es->selection_start);
3335
3336 if (delta < 0 && es->x_offset)
3337 {
3338 if (abs(delta) > es->x_offset)
3339 es->x_offset = 0;
3340 else
3341 es->x_offset += delta;
3342 }
3343 }
3344
3345 EDIT_EM_SetSel(es, s, s, FALSE);
3346 es->flags |= EF_MODIFIED;
3347 if (send_update) es->flags |= EF_UPDATE;
3348 if (hrgn)
3349 {
3350 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3351 DeleteObject(hrgn);
3352 }
3353 else
3354 EDIT_UpdateText(es, NULL, TRUE);
3355
3356 EDIT_EM_ScrollCaret(es);
3357
3358 /* force scroll info update */
3359 EDIT_UpdateScrollInfo(es);
3360
3361
3362 if(send_update || (es->flags & EF_UPDATE))
3363 {
3364 es->flags &= ~EF_UPDATE;
3365 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3366 }
3367 }
3368
3369
3370 /*********************************************************************
3371 *
3372 * EM_SCROLL
3373 *
3374 */
3375 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3376 {
3377 INT dy;
3378
3379 if (!(es->style & ES_MULTILINE))
3380 return (LRESULT)FALSE;
3381
3382 dy = 0;
3383
3384 switch (action) {
3385 case SB_LINEUP:
3386 if (es->y_offset)
3387 dy = -1;
3388 break;
3389 case SB_LINEDOWN:
3390 if (es->y_offset < es->line_count - 1)
3391 dy = 1;
3392 break;
3393 case SB_PAGEUP:
3394 if (es->y_offset)
3395 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3396 break;
3397 case SB_PAGEDOWN:
3398 if (es->y_offset < es->line_count - 1)
3399 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3400 break;
3401 default:
3402 return (LRESULT)FALSE;
3403 }
3404 if (dy) {
3405 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3406 /* check if we are going to move too far */
3407 if(es->y_offset + dy > es->line_count - vlc)
3408 dy = es->line_count - vlc - es->y_offset;
3409
3410 /* Notification is done in EDIT_EM_LineScroll */
3411 if(dy)
3412 EDIT_EM_LineScroll(es, 0, dy);
3413 }
3414 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3415 }
3416
3417
3418 /*********************************************************************
3419 *
3420 * EM_SCROLLCARET
3421 *
3422 */
3423 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3424 {
3425 if (es->style & ES_MULTILINE) {
3426 INT l;
3427 INT li;
3428 INT vlc;
3429 INT ww;
3430 INT cw = es->char_width;
3431 INT x;
3432 INT dy = 0;
3433 INT dx = 0;
3434
3435 l = EDIT_EM_LineFromChar(es, es->selection_end);
3436 li = EDIT_EM_LineIndex(es, l);
3437 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3438 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3439 if (l >= es->y_offset + vlc)
3440 dy = l - vlc + 1 - es->y_offset;
3441 if (l < es->y_offset)
3442 dy = l - es->y_offset;
3443 ww = es->format_rect.right - es->format_rect.left;
3444 if (x < es->format_rect.left)
3445 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3446 if (x > es->format_rect.right)
3447 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3448 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3449 {
3450 /* check if we are going to move too far */
3451 if(es->x_offset + dx + ww > es->text_width)
3452 dx = es->text_width - ww - es->x_offset;
3453 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3454 EDIT_EM_LineScroll_internal(es, dx, dy);
3455 }
3456 } else {
3457 INT x;
3458 INT goal;
3459 INT format_width;
3460
3461 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3462 format_width = es->format_rect.right - es->format_rect.left;
3463 if (x < es->format_rect.left) {
3464 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3465 do {
3466 es->x_offset--;
3467 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3468 } while ((x < goal) && es->x_offset);
3469 /* FIXME: use ScrollWindow() somehow to improve performance */
3470 EDIT_UpdateText(es, NULL, TRUE);
3471 } else if (x > es->format_rect.right) {
3472 INT x_last;
3473 INT len = get_text_length(es);
3474 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3475 do {
3476 es->x_offset++;
3477 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3478 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3479 } while ((x > goal) && (x_last > es->format_rect.right));
3480 /* FIXME: use ScrollWindow() somehow to improve performance */
3481 EDIT_UpdateText(es, NULL, TRUE);
3482 }
3483 }
3484
3485 if(es->flags & EF_FOCUSED)
3486 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3487 }
3488
3489
3490 /*********************************************************************
3491 *
3492 * EM_SETHANDLE
3493 *
3494 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3495 *
3496 */
3497 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3498 {
3499 if (!(es->style & ES_MULTILINE))
3500 return;
3501
3502 if (!hloc) {
3503 WARN("called with NULL handle\n");
3504 return;
3505 }
3506
3507 EDIT_UnlockBuffer(es, TRUE);
3508
3509 if(es->hloc16)
3510 {
3511 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3512 HANDLE16 oldDS = stack16->ds;
3513
3514 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3515 LocalFree16(es->hloc16);
3516 stack16->ds = oldDS;
3517 es->hloc16 = 0;
3518 }
3519
3520 if(es->is_unicode)
3521 {
3522 if(es->hloc32A)
3523 {
3524 LocalFree(es->hloc32A);
3525 es->hloc32A = NULL;
3526 }
3527 es->hloc32W = hloc;
3528 }
3529 else
3530 {
3531 INT countW, countA;
3532 HLOCAL hloc32W_new;
3533 WCHAR *textW;
3534 CHAR *textA;
3535
3536 countA = LocalSize(hloc);
3537 textA = LocalLock(hloc);
3538 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3539 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3540 {
3541 ERR("Could not allocate new unicode buffer\n");
3542 return;
3543 }
3544 textW = LocalLock(hloc32W_new);
3545 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3546 LocalUnlock(hloc32W_new);
3547 LocalUnlock(hloc);
3548
3549 if(es->hloc32W)
3550 LocalFree(es->hloc32W);
3551
3552 es->hloc32W = hloc32W_new;
3553 es->hloc32A = hloc;
3554 }
3555
3556 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3557
3558 es->flags |= EF_APP_HAS_HANDLE;
3559 EDIT_LockBuffer(es);
3560
3561 es->x_offset = es->y_offset = 0;
3562 es->selection_start = es->selection_end = 0;
3563 EDIT_EM_EmptyUndoBuffer(es);
3564 es->flags &= ~EF_MODIFIED;
3565 es->flags &= ~EF_UPDATE;
3566 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3567 EDIT_UpdateText(es, NULL, TRUE);
3568 EDIT_EM_ScrollCaret(es);
3569 /* force scroll info update */
3570 EDIT_UpdateScrollInfo(es);
3571 }
3572
3573
3574 /*********************************************************************
3575 *
3576 * EM_SETHANDLE16
3577 *
3578 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3579 *
3580 */
3581 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3582 {
3583 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3584 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3585 HANDLE16 oldDS = stack16->ds;
3586 INT countW, countA;
3587 HLOCAL hloc32W_new;
3588 WCHAR *textW;
3589 CHAR *textA;
3590
3591 if (!(es->style & ES_MULTILINE))
3592 return;
3593
3594 if (!hloc) {
3595 WARN("called with NULL handle\n");
3596 return;
3597 }
3598
3599 EDIT_UnlockBuffer(es, TRUE);
3600
3601 if(es->hloc32A)
3602 {
3603 LocalFree(es->hloc32A);
3604 es->hloc32A = NULL;
3605 }
3606
3607 stack16->ds = hInstance;
3608 countA = LocalSize16(hloc);
3609 textA = MapSL(LocalLock16(hloc));
3610 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3611 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3612 {
3613 ERR("Could not allocate new unicode buffer\n");
3614 return;
3615 }
3616 textW = LocalLock(hloc32W_new);
3617 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3618 LocalUnlock(hloc32W_new);
3619 LocalUnlock16(hloc);
3620 stack16->ds = oldDS;
3621
3622 if(es->hloc32W)
3623 LocalFree(es->hloc32W);
3624
3625 es->hloc32W = hloc32W_new;
3626 es->hloc16 = hloc;
3627
3628 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3629
3630 es->flags |= EF_APP_HAS_HANDLE;
3631 EDIT_LockBuffer(es);
3632
3633 es->x_offset = es->y_offset = 0;
3634 es->selection_start = es->selection_end = 0;
3635 EDIT_EM_EmptyUndoBuffer(es);
3636 es->flags &= ~EF_MODIFIED;
3637 es->flags &= ~EF_UPDATE;
3638 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3639 EDIT_UpdateText(es, NULL, TRUE);
3640 EDIT_EM_ScrollCaret(es);
3641 /* force scroll info update */
3642 EDIT_UpdateScrollInfo(es);
3643 }
3644
3645
3646 /*********************************************************************
3647 *
3648 * EM_SETLIMITTEXT
3649 *
3650 * NOTE: this version currently implements WinNT limits
3651 *
3652 */
3653 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
3654 {
3655 if (!limit) limit = ~0u;
3656 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
3657 es->buffer_limit = limit;
3658 }
3659
3660
3661 /*********************************************************************
3662 *
3663 * EM_SETMARGINS
3664 *
3665 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3666 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3667 * margin according to the textmetrics of the current font.
3668 *
3669 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3670 * of the char's width as the margin, but this is not how Windows handles this.
3671 * For all other fonts Windows sets the margins to zero.
3672 *
3673 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3674 * edit control is equal to or larger than a certain size.
3675 * Interestingly if one subtracts both the left and right margins from
3676 * this size one always seems to get an even number. The extents of
3677 * the (four character) string "'**'" match this quite closely, so
3678 * we'll use this until we come up with a better idea.
3679 */
3680 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3681 {
3682 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3683 SIZE sz;
3684
3685 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3686 return sz.cx + left + right;
3687 }
3688
3689 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3690 WORD left, WORD right, BOOL repaint)
3691 {
3692 TEXTMETRICW tm;
3693 INT default_left_margin = 0; /* in pixels */
3694 INT default_right_margin = 0; /* in pixels */
3695
3696 /* Set the default margins depending on the font */
3697 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3698 HDC dc = GetDC(es->hwndSelf);
3699 HFONT old_font = SelectObject(dc, es->font);
3700 GetTextMetricsW(dc, &tm);
3701 /* The default margins are only non zero for TrueType or Vector fonts */
3702 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3703 int min_size;
3704 RECT rc;
3705 /* This must be calculated more exactly! But how? */
3706 default_left_margin = tm.tmAveCharWidth / 2;
3707 default_right_margin = tm.tmAveCharWidth / 2;
3708 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3709 GetClientRect(es->hwndSelf, &rc);
3710 if(rc.right - rc.left < min_size) {
3711 default_left_margin = es->left_margin;
3712 default_right_margin = es->right_margin;
3713 }
3714 }
3715 SelectObject(dc, old_font);
3716 ReleaseDC(es->hwndSelf, dc);
3717 }
3718
3719 if (action & EC_LEFTMARGIN) {
3720 es->format_rect.left -= es->left_margin;
3721 if (left != EC_USEFONTINFO)
3722 es->left_margin = left;
3723 else
3724 es->left_margin = default_left_margin;
3725 es->format_rect.left += es->left_margin;
3726 }
3727
3728 if (action & EC_RIGHTMARGIN) {
3729 es->format_rect.right += es->right_margin;
3730 if (right != EC_USEFONTINFO)
3731 es->right_margin = right;
3732 else
3733 es->right_margin = default_right_margin;
3734 es->format_rect.right -= es->right_margin;
3735 }
3736
3737 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3738 EDIT_AdjustFormatRect(es);
3739 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3740 }
3741
3742 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3743 }
3744
3745
3746 /*********************************************************************
3747 *
3748 * EM_SETPASSWORDCHAR
3749 *
3750 */
3751 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3752 {
3753 LONG style;
3754
3755 if (es->style & ES_MULTILINE)
3756 return;
3757
3758 if (es->password_char == c)
3759 return;
3760
3761 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3762 es->password_char = c;
3763 if (c) {
3764 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3765 es->style |= ES_PASSWORD;
3766 } else {
3767 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3768 es->style &= ~ES_PASSWORD;
3769 }
3770 EDIT_UpdateText(es, NULL, TRUE);
3771 }
3772
3773
3774 /*********************************************************************
3775 *
3776 * EDIT_EM_SetSel
3777 *
3778 * note: unlike the specs say: the order of start and end
3779 * _is_ preserved in Windows. (i.e. start can be > end)
3780 * In other words: this handler is OK
3781 *
3782 */
3783 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3784 {
3785 UINT old_start = es->selection_start;
3786 UINT old_end = es->selection_end;
3787 UINT len = get_text_length(es);
3788
3789 if (start == (UINT)-1) {
3790 start = es->selection_end;
3791 end = es->selection_end;
3792 } else {
3793 start = min(start, len);
3794 end = min(end, len);
3795 }
3796 es->selection_start = start;
3797 es->selection_end = end;
3798 if (after_wrap)
3799 es->flags |= EF_AFTER_WRAP;
3800 else
3801 es->flags &= ~EF_AFTER_WRAP;
3802 /* Compute the necessary invalidation region. */
3803 /* Note that we don't need to invalidate regions which have
3804 * "never" been selected, or those which are "still" selected.
3805 * In fact, every time we hit a selection boundary, we can
3806 * *toggle* whether we need to invalidate. Thus we can optimize by
3807 * *sorting* the interval endpoints. Let's assume that we sort them
3808 * in this order:
3809 * start <= end <= old_start <= old_end
3810 * Knuth 5.3.1 (p 183) asssures us that this can be done optimally
3811 * in 5 comparisons; ie it's impossible to do better than the
3812 * following: */
3813 ORDER_UINT(end, old_end);
3814 ORDER_UINT(start, old_start);
3815 ORDER_UINT(old_start, old_end);
3816 ORDER_UINT(start, end);
3817 /* Note that at this point 'end' and 'old_start' are not in order, but
3818 * start is definitely the min. and old_end is definitely the max. */
3819 if (end != old_start)
3820 {
3821 /*
3822 * One can also do
3823 * ORDER_UINT32(end, old_start);
3824 * EDIT_InvalidateText(es, start, end);
3825 * EDIT_InvalidateText(es, old_start, old_end);
3826 * in place of the following if statement.
3827 * (That would complete the optimal five-comparison four-element sort.)
3828 */
3829 if (old_start > end )
3830 {
3831 EDIT_InvalidateText(es, start, end);
3832 EDIT_InvalidateText(es, old_start, old_end);
3833 }
3834 else
3835 {
3836 EDIT_InvalidateText(es, start, old_start);
3837 EDIT_InvalidateText(es, end, old_end);
3838 }
3839 }
3840 else EDIT_InvalidateText(es, start, old_end);
3841 }
3842
3843
3844 /*********************************************************************
3845 *
3846 * EM_SETTABSTOPS
3847 *
3848 */
3849 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3850 {
3851 if (!(es->style & ES_MULTILINE))
3852 return FALSE;
3853 HeapFree(GetProcessHeap(), 0, es->tabs);
3854 es->tabs_count = count;
3855 if (!count)
3856 es->tabs = NULL;
3857 else {
3858 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3859 memcpy(es->tabs, tabs, count * sizeof(INT));
3860 }
3861 return TRUE;
3862 }
3863
3864
3865 /*********************************************************************
3866 *
3867 * EM_SETTABSTOPS16
3868 *
3869 */
3870 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3871 {
3872 if (!(es->style & ES_MULTILINE))
3873 return FALSE;
3874 HeapFree(GetProcessHeap(), 0, es->tabs);
3875 es->tabs_count = count;
3876 if (!count)
3877 es->tabs = NULL;
3878 else {
3879 INT i;
3880 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3881 for (i = 0 ; i < count ; i++)
3882 es->tabs[i] = *tabs++;
3883 }
3884 return TRUE;
3885 }
3886
3887
3888 /*********************************************************************
3889 *
3890 * EM_SETWORDBREAKPROC
3891 *
3892 */
3893 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3894 {
3895 if (es->word_break_proc == wbp)
3896 return;
3897
3898 es->word_break_proc = wbp;
3899 es->word_break_proc16 = NULL;
3900
3901 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3902 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3903 EDIT_UpdateText(es, NULL, TRUE);
3904 }
3905 }
3906
3907
3908 /*********************************************************************
3909 *
3910 * EM_SETWORDBREAKPROC16
3911 *
3912 */
3913 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3914 {
3915 if (es->word_break_proc16 == wbp)
3916 return;
3917
3918 es->word_break_proc = NULL;
3919 es->word_break_proc16 = wbp;
3920 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3921 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3922 EDIT_UpdateText(es, NULL, TRUE);
3923 }
3924 }
3925
3926
3927 /*********************************************************************
3928 *
3929 * EM_UNDO / WM_UNDO
3930 *
3931 */
3932 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3933 {
3934 INT ulength;
3935 LPWSTR utext;
3936
3937 /* As per MSDN spec, for a single-line edit control,
3938 the return value is always TRUE */
3939 if( es->style & ES_READONLY )
3940 return !(es->style & ES_MULTILINE);
3941
3942 ulength = strlenW(es->undo_text);
3943
3944 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3945
3946 strcpyW(utext, es->undo_text);
3947
3948 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3949 es->undo_insert_count, debugstr_w(utext));
3950
3951 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3952 EDIT_EM_EmptyUndoBuffer(es);
3953 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3954 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3955 /* send the notification after the selection start and end are set */
3956 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3957 EDIT_EM_ScrollCaret(es);
3958 HeapFree(GetProcessHeap(), 0, utext);
3959
3960 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3961 es->undo_insert_count, debugstr_w(es->undo_text));
3962 return TRUE;
3963 }
3964
3965
3966 /*********************************************************************
3967 *
3968 * WM_CHAR
3969 *
3970 */
3971 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3972 {
3973 BOOL control;
3974
3975 control = GetKeyState(VK_CONTROL) & 0x8000;
3976
3977 switch (c) {
3978 case '\r':
3979 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3980 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3981 break;
3982 case '\n':
3983 if (es->style & ES_MULTILINE) {
3984 if (es->style & ES_READONLY) {
3985 EDIT_MoveHome(es, FALSE);
3986 EDIT_MoveDown_ML(es, FALSE);
3987 } else {
3988 static const WCHAR cr_lfW[] = {'\r','\n',0};
3989 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3990 }
3991 }
3992 break;
3993 case '\t':
3994 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3995 {
3996 static const WCHAR tabW[] = {'\t',0};
3997 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3998 }
3999 break;
4000 case VK_BACK:
4001 if (!(es->style & ES_READONLY) && !control) {
4002 if (es->selection_start != es->selection_end)
4003 EDIT_WM_Clear(es);
4004 else {
4005 /* delete character left of caret */
4006 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4007 EDIT_MoveBackward(es, TRUE);
4008 EDIT_WM_Clear(es);
4009 }
4010 }
4011 break;
4012 case 0x03: /* ^C */
4013 if (!(es->style & ES_PASSWORD))
4014 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4015 break;
4016 case 0x16: /* ^V */
4017 if (!(es->style & ES_READONLY))
4018 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4019 break;
4020 case 0x18: /* ^X */
4021 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
4022 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4023 break;
4024 case 0x1A: /* ^Z */
4025 if (!(es->style & ES_READONLY))
4026 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4027 break;
4028
4029 default:
4030 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4031 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4032 break;
4033
4034 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4035 WCHAR str[2];
4036 str[0] = c;
4037 str[1] = '\0';
4038 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4039 }
4040 break;
4041 }
4042 }
4043
4044
4045 /*********************************************************************
4046 *
4047 * WM_COMMAND
4048 *
4049 */
4050 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4051 {
4052 if (code || control)
4053 return;
4054
4055 switch (id) {
4056 case EM_UNDO:
4057 EDIT_EM_Undo(es);
4058 break;
4059 case WM_CUT:
4060 EDIT_WM_Cut(es);
4061 break;
4062 case WM_COPY:
4063 EDIT_WM_Copy(es);
4064 break;
4065 case WM_PASTE:
4066 EDIT_WM_Paste(es);
4067 break;
4068 case WM_CLEAR:
4069 EDIT_WM_Clear(es);
4070 break;
4071 case EM_SETSEL:
4072 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4073 EDIT_EM_ScrollCaret(es);
4074 break;
4075 default:
4076 ERR("unknown menu item, please report\n");
4077 break;
4078 }
4079 }
4080
4081
4082 /*********************************************************************
4083 *
4084 * WM_CONTEXTMENU
4085 *
4086 * Note: the resource files resource/sysres_??.rc cannot define a
4087 * single popup menu. Hence we use a (dummy) menubar
4088 * containing the single popup menu as its first item.
4089 *
4090 * FIXME: the message identifiers have been chosen arbitrarily,
4091 * hence we use MF_BYPOSITION.
4092 * We might as well use the "real" values (anybody knows ?)
4093 * The menu definition is in resources/sysres_??.rc.
4094 * Once these are OK, we better use MF_BYCOMMAND here
4095 * (as we do in EDIT_WM_Command()).
4096 *
4097 */
4098 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4099 {
4100 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4101 HMENU popup = GetSubMenu(menu, 0);
4102 UINT start = es->selection_start;
4103 UINT end = es->selection_end;
4104
4105 ORDER_UINT(start, end);
4106
4107 /* undo */
4108 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4109 /* cut */
4110 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4111 /* copy */
4112 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4113 /* paste */
4114 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4115 /* delete */
4116 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4117 /* select all */
4118 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
4119
4120 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
4121 {
4122 RECT rc;
4123 /* Windows places the menu at the edit's center in this case */
4124 GetClientRect(es->hwndSelf, &rc);
4125 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
4126 x = rc.left + (rc.right - rc.left) / 2;
4127 y = rc.top + (rc.bottom - rc.top) / 2;
4128 }
4129
4130 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4131 DestroyMenu(menu);
4132 }
4133
4134
4135 /*********************************************************************
4136 *
4137 * WM_COPY
4138 *
4139 */
4140 static void EDIT_WM_Copy(EDITSTATE *es)
4141 {
4142 INT s = min(es->selection_start, es->selection_end);
4143 INT e = max(es->selection_start, es->selection_end);
4144 HGLOBAL hdst;
4145 LPWSTR dst;
4146 DWORD len;
4147
4148 if (e == s) return;
4149
4150 len = e - s;
4151 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4152 dst = GlobalLock(hdst);
4153 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4154 dst[len] = 0; /* ensure 0 termination */
4155 TRACE("%s\n", debugstr_w(dst));
4156 GlobalUnlock(hdst);
4157 OpenClipboard(es->hwndSelf);
4158 EmptyClipboard();
4159 SetClipboardData(CF_UNICODETEXT, hdst);
4160 CloseClipboard();
4161 }
4162
4163
4164 /*********************************************************************
4165 *
4166 * WM_CREATE
4167 *
4168 */
4169 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4170 {
4171 RECT clientRect;
4172
4173 TRACE("%s\n", debugstr_w(name));
4174 /*
4175 * To initialize some final structure members, we call some helper
4176 * functions. However, since the EDITSTATE is not consistent (i.e.
4177 * not fully initialized), we should be very careful which
4178 * functions can be called, and in what order.
4179 */
4180 EDIT_WM_SetFont(es, 0, FALSE);
4181 EDIT_EM_EmptyUndoBuffer(es);
4182
4183 /* We need to calculate the format rect
4184 (applications may send EM_SETMARGINS before the control gets visible) */
4185 GetClientRect(es->hwndSelf, &clientRect);
4186 EDIT_SetRectNP(es, &clientRect);
4187
4188 if (name && *name) {
4189 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4190 /* if we insert text to the editline, the text scrolls out
4191 * of the window, as the caret is placed after the insert
4192 * pos normally; thus we reset es->selection... to 0 and
4193 * update caret
4194 */
4195 es->selection_start = es->selection_end = 0;
4196 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4197 * Messages are only to be sent when the USER does something to
4198 * change the contents. So I am removing this EN_CHANGE
4199 *
4200 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4201 */
4202 EDIT_EM_ScrollCaret(es);
4203 }
4204 /* force scroll info update */
4205 EDIT_UpdateScrollInfo(es);
4206 /* The rule seems to return 1 here for success */
4207 /* Power Builder masked edit controls will crash */
4208 /* if not. */
4209 /* FIXME: is that in all cases so ? */
4210 return 1;
4211 }
4212
4213
4214 /*********************************************************************
4215 *
4216 * WM_DESTROY
4217 *
4218 */
4219 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4220 {
4221 LINEDEF *pc, *pp;
4222
4223 if (es->hloc32W) {
4224 while (LocalUnlock(es->hloc32W)) ;
4225 LocalFree(es->hloc32W);
4226 }
4227 if (es->hloc32A) {
4228 while (LocalUnlock(es->hloc32A)) ;
4229 LocalFree(es->hloc32A);
4230 }
4231 if (es->hloc16) {
4232 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
4233 HANDLE16 oldDS = stack16->ds;
4234
4235 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4236 while (LocalUnlock16(es->hloc16)) ;
4237 LocalFree16(es->hloc16);
4238 stack16->ds = oldDS;
4239 }
4240
4241 pc = es->first_line_def;
4242 while (pc)
4243 {
4244 pp = pc->next;
4245 HeapFree(GetProcessHeap(), 0, pc);
4246 pc = pp;
4247 }
4248
4249 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4250 HeapFree(GetProcessHeap(), 0, es);
4251
4252 return 0;
4253 }
4254
4255
4256 /*********************************************************************
4257 *
4258 * WM_ERASEBKGND
4259 *
4260 */
4261 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
4262 {
4263 /* we do the proper erase in EDIT_WM_Paint */
4264 return 1;
4265 }
4266
4267
4268 /*********************************************************************
4269 *
4270 * WM_GETTEXT
4271 *
4272 */
4273 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4274 {
4275 if(!count) return 0;
4276
4277 if(unicode)
4278 {
4279 lstrcpynW(dst, es->text, count);
4280 return strlenW(dst);
4281 }
4282 else
4283 {
4284 LPSTR textA = (LPSTR)dst;
4285 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4286 textA[count - 1] = 0; /* ensure 0 termination */
4287 return strlen(textA);
4288 }
4289 }
4290
4291 /*********************************************************************
4292 *
4293 * WM_HSCROLL
4294 *
4295 */
4296 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4297 {
4298 INT dx;
4299 INT fw;
4300
4301 if (!(es->style & ES_MULTILINE))
4302 return 0;
4303
4304 if (!(es->style & ES_AUTOHSCROLL))
4305 return 0;
4306
4307 dx = 0;
4308 fw = es->format_rect.right - es->format_rect.left;
4309 switch (action) {
4310 case SB_LINELEFT:
4311 TRACE("SB_LINELEFT\n");
4312 if (es->x_offset)
4313 dx = -es->char_width;
4314 break;
4315 case SB_LINERIGHT:
4316 TRACE("SB_LINERIGHT\n");
4317 if (es->x_offset < es->text_width)
4318 dx = es->char_width;
4319 break;
4320 case SB_PAGELEFT:
4321 TRACE("SB_PAGELEFT\n");
4322 if (es->x_offset)
4323 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4324 break;
4325 case SB_PAGERIGHT:
4326 TRACE("SB_PAGERIGHT\n");
4327 if (es->x_offset < es->text_width)
4328 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4329 break;
4330 case SB_LEFT:
4331 TRACE("SB_LEFT\n");
4332 if (es->x_offset)
4333 dx = -es->x_offset;
4334 break;
4335 case SB_RIGHT:
4336 TRACE("SB_RIGHT\n");
4337 if (es->x_offset < es->text_width)
4338 dx = es->text_width - es->x_offset;
4339 break;
4340 case SB_THUMBTRACK:
4341 TRACE("SB_THUMBTRACK %d\n", pos);
4342 es->flags |= EF_HSCROLL_TRACK;
4343 if(es->style & WS_HSCROLL)
4344 dx = pos - es->x_offset;
4345 else
4346 {
4347 INT fw, new_x;
4348 /* Sanity check */
4349 if(pos < 0 || pos > 100) return 0;
4350 /* Assume default scroll range 0-100 */
4351 fw = es->format_rect.right - es->format_rect.left;
4352 new_x = pos * (es->text_width - fw) / 100;
4353 dx = es->text_width ? (new_x - es->x_offset) : 0;
4354 }
4355 break;
4356 case SB_THUMBPOSITION:
4357 TRACE("SB_THUMBPOSITION %d\n", pos);
4358 es->flags &= ~EF_HSCROLL_TRACK;
4359 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4360 dx = pos - es->x_offset;
4361 else
4362 {
4363 INT fw, new_x;
4364 /* Sanity check */
4365 if(pos < 0 || pos > 100) return 0;
4366 /* Assume default scroll range 0-100 */
4367 fw = es->format_rect.right - es->format_rect.left;
4368 new_x = pos * (es->text_width - fw) / 100;
4369 dx = es->text_width ? (new_x - es->x_offset) : 0;
4370 }
4371 if (!dx) {
4372 /* force scroll info update */
4373 EDIT_UpdateScrollInfo(es);
4374 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4375 }
4376 break;
4377 case SB_ENDSCROLL:
4378 TRACE("SB_ENDSCROLL\n");
4379 break;
4380 /*
4381 * FIXME : the next two are undocumented !
4382 * Are we doing the right thing ?
4383 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4384 * although it's also a regular control message.
4385 */
4386 case EM_GETTHUMB: /* this one is used by NT notepad */
4387 case EM_GETTHUMB16:
4388 {
4389 LRESULT ret;
4390 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4391 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4392 else
4393 {
4394 /* Assume default scroll range 0-100 */
4395 INT fw = es->format_rect.right - es->format_rect.left;
4396 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4397 }
4398 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4399 return ret;
4400 }
4401 case EM_LINESCROLL16:
4402 TRACE("EM_LINESCROLL16\n");
4403 dx = pos;
4404 break;
4405
4406 default:
4407 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4408 action, action);
4409 return 0;
4410 }
4411 if (dx)
4412 {
4413 INT fw = es->format_rect.right - es->format_rect.left;
4414 /* check if we are going to move too far */
4415 if(es->x_offset + dx + fw > es->text_width)
4416 dx = es->text_width - fw - es->x_offset;
4417 if(dx)
4418 EDIT_EM_LineScroll_internal(es, dx, 0);
4419 }
4420 return 0;
4421 }
4422
4423
4424 /*********************************************************************
4425 *
4426 * EDIT_CheckCombo
4427 *
4428 */
4429 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4430 {
4431 HWND hLBox = es->hwndListBox;
4432 HWND hCombo;
4433 BOOL bDropped;
4434 int nEUI;
4435
4436 if (!hLBox)
4437 return FALSE;
4438
4439 hCombo = GetParent(es->hwndSelf);
4440 bDropped = TRUE;
4441 nEUI = 0;
4442
4443 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4444
4445 if (key == VK_UP || key == VK_DOWN)
4446 {
4447 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4448 nEUI = 1;
4449
4450 if (msg == WM_KEYDOWN || nEUI)
4451 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4452 }
4453
4454 switch (msg)
4455 {
4456 case WM_KEYDOWN:
4457 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4458 {
4459 /* make sure ComboLBox pops up */
4460 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4461 key = VK_F4;
4462 nEUI = 2;
4463 }
4464
4465 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4466 break;
4467
4468 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4469 if (nEUI)
4470 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4471 else
4472 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4473 break;
4474 }
4475
4476 if(nEUI == 2)
4477 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4478
4479 return TRUE;
4480 }
4481
4482
4483 /*********************************************************************
4484 *
4485 * WM_KEYDOWN
4486 *
4487 * Handling of special keys that don't produce a WM_CHAR
4488 * (i.e. non-printable keys) & Backspace & Delete
4489 *
4490 */
4491 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4492 {
4493 BOOL shift;
4494 BOOL control;
4495
4496 if (GetKeyState(VK_MENU) & 0x8000)
4497 return 0;
4498
4499 shift = GetKeyState(VK_SHIFT) & 0x8000;
4500 control = GetKeyState(VK_CONTROL) & 0x8000;
4501
4502 switch (key) {
4503 case VK_F4:
4504 case VK_UP:
4505 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4506 break;
4507
4508 /* fall through */
4509 case VK_LEFT:
4510 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4511 EDIT_MoveUp_ML(es, shift);
4512 else
4513 if (control)
4514 EDIT_MoveWordBackward(es, shift);
4515 else
4516 EDIT_MoveBackward(es, shift);
4517 break;
4518 case VK_DOWN:
4519 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4520 break;
4521 /* fall through */
4522 case VK_RIGHT:
4523 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4524 EDIT_MoveDown_ML(es, shift);
4525 else if (control)
4526 EDIT_MoveWordForward(es, shift);
4527 else
4528 EDIT_MoveForward(es, shift);
4529 break;
4530 case VK_HOME:
4531 EDIT_MoveHome(es, shift);
4532 break;
4533 case VK_END:
4534 EDIT_MoveEnd(es, shift);
4535 break;
4536 case VK_PRIOR:
4537 if (es->style & ES_MULTILINE)
4538 EDIT_MovePageUp_ML(es, shift);
4539 else
4540 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4541 break;
4542 case VK_NEXT:
4543 if (es->style & ES_MULTILINE)
4544 EDIT_MovePageDown_ML(es, shift);
4545 else
4546 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4547 break;
4548 case VK_DELETE:
4549 if (!(es->style & ES_READONLY) && !(shift && control)) {
4550 if (es->selection_start != es->selection_end) {
4551 if (shift)
4552 EDIT_WM_Cut(es);
4553 else
4554 EDIT_WM_Clear(es);
4555 } else {
4556 if (shift) {
4557 /* delete character left of caret */
4558 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4559 EDIT_MoveBackward(es, TRUE);
4560 EDIT_WM_Clear(es);
4561 } else if (control) {
4562 /* delete to end of line */
4563 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4564 EDIT_MoveEnd(es, TRUE);
4565 EDIT_WM_Clear(es);
4566 } else {
4567 /* delete character right of caret */
4568 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4569 EDIT_MoveForward(es, TRUE);
4570 EDIT_WM_Clear(es);
4571 }
4572 }
4573 }
4574 break;
4575 case VK_INSERT:
4576 if (shift) {
4577 if (!(es->style & ES_READONLY))
4578 EDIT_WM_Paste(es);
4579 } else if (control)
4580 EDIT_WM_Copy(es);
4581 break;
4582 case VK_RETURN:
4583 /* If the edit doesn't want the return send a message to the default object */
4584 if(!(es->style & ES_WANTRETURN))
4585 {
4586 HWND hwndParent = GetParent(es->hwndSelf);
4587 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4588 if (HIWORD(dw) == DC_HASDEFID)
4589 {
4590 SendMessageW( hwndParent, WM_COMMAND,
4591 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4592 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4593 }
4594 }
4595 break;
4596 }
4597 return 0;
4598 }
4599
4600
4601 /*********************************************************************
4602 *
4603 * WM_KILLFOCUS
4604 *
4605 */
4606 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4607 {
4608 es->flags &= ~EF_FOCUSED;
4609 DestroyCaret();
4610 if(!(es->style & ES_NOHIDESEL))
4611 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4612 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4613 return 0;
4614 }
4615
4616
4617 /*********************************************************************
4618 *
4619 * WM_LBUTTONDBLCLK
4620 *
4621 * The caret position has been set on the WM_LBUTTONDOWN message
4622 *
4623 */
4624 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4625 {
4626 INT s;
4627 INT e = es->selection_end;
4628 INT l;
4629 INT li;
4630 INT ll;
4631
4632 es->bCaptureState = TRUE;
4633 SetCapture(es->hwndSelf);
4634
4635 l = EDIT_EM_LineFromChar(es, e);
4636 li = EDIT_EM_LineIndex(es, l);
4637 ll = EDIT_EM_LineLength(es, e);
4638 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4639 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4640 EDIT_EM_SetSel(es, s, e, FALSE);
4641 EDIT_EM_ScrollCaret(es);
4642 es->region_posx = es->region_posy = 0;
4643 SetTimer(es->hwndSelf, 0, 100, NULL);
4644 return 0;
4645 }
4646
4647
4648 /*********************************************************************
4649 *
4650 * WM_LBUTTONDOWN
4651 *
4652 */
4653 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4654 {
4655 INT e;
4656 BOOL after_wrap;
4657
4658 es->bCaptureState = TRUE;
4659 SetCapture(es->hwndSelf);
4660 EDIT_ConfinePoint(es, &x, &y);
4661 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4662 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4663 EDIT_EM_ScrollCaret(es);
4664 es->region_posx = es->region_posy = 0;
4665 SetTimer(es->hwndSelf, 0, 100, NULL);
4666
4667 if (!(es->flags & EF_FOCUSED))
4668 SetFocus(es->hwndSelf);
4669
4670 return 0;
4671 }
4672
4673
4674 /*********************************************************************
4675 *
4676 * WM_LBUTTONUP
4677 *
4678 */
4679 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4680 {
4681 if (es->bCaptureState) {
4682 KillTimer(es->hwndSelf, 0);
4683 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4684 }
4685 es->bCaptureState = FALSE;
4686 return 0;
4687 }
4688
4689
4690 /*********************************************************************
4691 *
4692 * WM_MBUTTONDOWN
4693 *
4694 */
4695 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4696 {
4697 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4698 return 0;
4699 }
4700
4701
4702 /*********************************************************************
4703 *
4704 * WM_MOUSEMOVE
4705 *
4706 */
4707 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4708 {
4709 INT e;
4710 BOOL after_wrap;
4711 INT prex, prey;
4712
4713 /* If the mouse has been captured by process other than the edit control itself,
4714 * the windows edit controls will not select the strings with mouse move.
4715 */
4716 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4717 return 0;
4718
4719 /*
4720 * FIXME: gotta do some scrolling if outside client
4721 * area. Maybe reset the timer ?
4722 */
4723 prex = x; prey = y;
4724 EDIT_ConfinePoint(es, &x, &y);
4725 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4726 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4727 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4728 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4729 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4730 return 0;
4731 }
4732
4733
4734 /*********************************************************************
4735 *
4736 * WM_NCCREATE
4737 *
4738 * See also EDIT_WM_StyleChanged
4739 */
4740 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4741 {
4742 EDITSTATE *es;
4743 UINT alloc_size;
4744
4745 TRACE("Creating %s edit control, style = %08x\n",
4746 unicode ? "Unicode" : "ANSI", lpcs->style);
4747
4748 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4749 return FALSE;
4750 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4751
4752 /*
4753 * Note: since the EDITSTATE has not been fully initialized yet,
4754 * we can't use any API calls that may send
4755 * WM_XXX messages before WM_NCCREATE is completed.
4756 */
4757
4758 es->is_unicode = unicode;
4759 es->style = lpcs->style;
4760
4761 es->bEnableState = !(es->style & WS_DISABLED);
4762
4763 es->hwndSelf = hwnd;
4764 /* Save parent, which will be notified by EN_* messages */
4765 es->hwndParent = lpcs->hwndParent;
4766
4767 if (es->style & ES_COMBO)
4768 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4769
4770 /* Number overrides lowercase overrides uppercase (at least it
4771 * does in Win95). However I'll bet that ES_NUMBER would be
4772 * invalid under Win 3.1.
4773 */
4774 if (es->style & ES_NUMBER) {
4775 ; /* do not override the ES_NUMBER */
4776 } else if (es->style & ES_LOWERCASE) {
4777 es->style &= ~ES_UPPERCASE;
4778 }
4779 if (es->style & ES_MULTILINE) {
4780 es->buffer_limit = BUFLIMIT_INITIAL;
4781 if (es->style & WS_VSCROLL)
4782 es->style |= ES_AUTOVSCROLL;
4783 if (es->style & WS_HSCROLL)
4784 es->style |= ES_AUTOHSCROLL;
4785 es->style &= ~ES_PASSWORD;
4786 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4787 /* Confirmed - RIGHT overrides CENTER */
4788 if (es->style & ES_RIGHT)
4789 es->style &= ~ES_CENTER;
4790 es->style &= ~WS_HSCROLL;
4791 es->style &= ~ES_AUTOHSCROLL;
4792 }
4793 } else {
4794 es->buffer_limit = BUFLIMIT_INITIAL;
4795 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4796 es->style &= ~ES_CENTER;
4797 es->style &= ~WS_HSCROLL;
4798 es->style &= ~WS_VSCROLL;
4799 if (es->style & ES_PASSWORD)
4800 es->password_char = '*';
4801 }
4802
4803 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4804 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4805 return FALSE;
4806 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4807
4808 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4809 return FALSE;
4810 es->undo_buffer_size = es->buffer_size;
4811
4812 if (es->style & ES_MULTILINE)
4813 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4814 return FALSE;
4815 es->line_count = 1;
4816
4817 /*
4818 * In Win95 look and feel, the WS_BORDER style is replaced by the
4819 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4820 * control a nonclient area so we don't need to draw the border.
4821 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4822 * a nonclient area and we should handle painting the border ourselves.
4823 *
4824 * When making modifications please ensure that the code still works
4825 * for edit controls created directly with style 0x50800000, exStyle 0
4826 * (which should have a single pixel border)
4827 */
4828 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4829 es->style &= ~WS_BORDER;
4830 else if (es->style & WS_BORDER)
4831 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4832
4833 return TRUE;
4834 }
4835
4836 /*********************************************************************
4837 *
4838 * WM_PAINT
4839 *
4840 */
4841 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4842 {
4843 PAINTSTRUCT ps;
4844 INT i;
4845 HDC dc;
4846 HFONT old_font = 0;
4847 RECT rc;
4848 RECT rcClient;
4849 RECT rcLine;
4850 RECT rcRgn;
4851 HBRUSH brush;
4852 HBRUSH old_brush;
4853 INT bw, bh;
4854 BOOL rev = es->bEnableState &&
4855 ((es->flags & EF_FOCUSED) ||
4856 (es->style & ES_NOHIDESEL));
4857 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4858
4859 GetClientRect(es->hwndSelf, &rcClient);
4860
4861 /* get the background brush */
4862 brush = EDIT_NotifyCtlColor(es, dc);
4863
4864 /* paint the border and the background */
4865 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4866
4867 if(es->style & WS_BORDER) {
4868 bw = GetSystemMetrics(SM_CXBORDER);
4869 bh = GetSystemMetrics(SM_CYBORDER);
4870 rc = rcClient;
4871 if(es->style & ES_MULTILINE) {
4872 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4873 if(es->style & WS_VSCROLL) rc.right+=bw;
4874 }
4875
4876 /* Draw the frame. Same code as in nonclient.c */
4877 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4878 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4879 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4880 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4881 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4882 SelectObject(dc, old_brush);
4883
4884 /* Keep the border clean */
4885 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4886 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4887 }
4888
4889 GetClipBox(dc, &rc);
4890 FillRect(dc, &rc, brush);
4891
4892 IntersectClipRect(dc, es->format_rect.left,
4893 es->format_rect.top,
4894 es->format_rect.right,
4895 es->format_rect.bottom);
4896 if (es->style & ES_MULTILINE) {
4897 rc = rcClient;
4898 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4899 }
4900 if (es->font)
4901 old_font = SelectObject(dc, es->font);
4902
4903 if (!es->bEnableState)
4904 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4905 GetClipBox(dc, &rcRgn);
4906 if (es->style & ES_MULTILINE) {
4907 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4908 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4909 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4910 if (IntersectRect(&rc, &rcRgn, &rcLine))
4911 EDIT_PaintLine(es, dc, i, rev);
4912 }
4913 } else {
4914 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4915 if (IntersectRect(&rc, &rcRgn, &rcLine))
4916 EDIT_PaintLine(es, dc, 0, rev);
4917 }
4918 if (es->font)
4919 SelectObject(dc, old_font);
4920
4921 if (!hdc)
4922 EndPaint(es->hwndSelf, &ps);
4923 }
4924
4925
4926 /*********************************************************************
4927 *
4928 * WM_PASTE
4929 *
4930 */
4931 static void EDIT_WM_Paste(EDITSTATE *es)
4932 {
4933 HGLOBAL hsrc;
4934 LPWSTR src;
4935
4936 /* Protect read-only edit control from modification */
4937 if(es->style & ES_READONLY)
4938 return;
4939
4940 OpenClipboard(es->hwndSelf);
4941 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4942 src = (LPWSTR)GlobalLock(hsrc);
4943 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4944 GlobalUnlock(hsrc);
4945 }
4946 else if (es->style & ES_PASSWORD) {
4947 /* clear selected text in password edit box even with empty clipboard */
4948 const WCHAR empty_strW[] = { 0 };
4949 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
4950 }
4951 CloseClipboard();
4952 }
4953
4954
4955 /*********************************************************************
4956 *
4957 * WM_SETFOCUS
4958 *
4959 */
4960 static void EDIT_WM_SetFocus(EDITSTATE *es)
4961 {
4962 es->flags |= EF_FOCUSED;
4963
4964 if (!(es->style & ES_NOHIDESEL))
4965 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4966
4967 /* single line edit updates itself */
4968 if (!(es->style & ES_MULTILINE))
4969 {
4970 HDC hdc = GetDC(es->hwndSelf);
4971 EDIT_WM_Paint(es, hdc);
4972 ReleaseDC(es->hwndSelf, hdc);
4973 }
4974
4975 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4976 EDIT_SetCaretPos(es, es->selection_end,
4977 es->flags & EF_AFTER_WRAP);
4978 ShowCaret(es->hwndSelf);
4979 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
4980 }
4981
4982
4983 /*********************************************************************
4984 *
4985 * WM_SETFONT
4986 *
4987 * With Win95 look the margins are set to default font value unless
4988 * the system font (font == 0) is being set, in which case they are left
4989 * unchanged.
4990 *
4991 */
4992 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4993 {
4994 TEXTMETRICW tm;
4995 HDC dc;
4996 HFONT old_font = 0;
4997 RECT clientRect;
4998
4999 es->font = font;
5000 dc = GetDC(es->hwndSelf);
5001 if (font)
5002 old_font = SelectObject(dc, font);
5003 GetTextMetricsW(dc, &tm);
5004 es->line_height = tm.tmHeight;
5005 es->char_width = tm.tmAveCharWidth;
5006 if (font)
5007 SelectObject(dc, old_font);
5008 ReleaseDC(es->hwndSelf, dc);
5009
5010 /* Reset the format rect and the margins */
5011 GetClientRect(es->hwndSelf, &clientRect);
5012 EDIT_SetRectNP(es, &clientRect);
5013 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
5014 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
5015
5016 if (es->style & ES_MULTILINE)
5017 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
5018 else
5019 EDIT_CalcLineWidth_SL(es);
5020
5021 if (redraw)
5022 EDIT_UpdateText(es, NULL, TRUE);
5023 if (es->flags & EF_FOCUSED) {
5024 DestroyCaret();
5025 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5026 EDIT_SetCaretPos(es, es->selection_end,
5027 es->flags & EF_AFTER_WRAP);
5028 ShowCaret(es->hwndSelf);
5029 }
5030 }
5031
5032
5033 /*********************************************************************
5034 *
5035 * WM_SETTEXT
5036 *
5037 * NOTES
5038 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5039 * The modified flag is reset. No notifications are sent.
5040 *
5041 * For single-line controls, reception of WM_SETTEXT triggers:
5042 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5043 *
5044 */
5045 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5046 {
5047 LPWSTR textW = NULL;
5048 if (!unicode && text)
5049 {
5050 LPCSTR textA = (LPCSTR)text;
5051 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5052 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5053 if (textW)
5054 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5055 text = textW;
5056 }
5057
5058 if (es->flags & EF_UPDATE)
5059 /* fixed this bug once; complain if we see it about to happen again. */
5060 ERR("SetSel may generate UPDATE message whose handler may reset "
5061 "selection.\n");
5062
5063 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5064 if (text)
5065 {
5066 TRACE("%s\n", debugstr_w(text));
5067 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5068 if(!unicode)
5069 HeapFree(GetProcessHeap(), 0, textW);
5070 }
5071 else
5072 {
5073 static const WCHAR empty_stringW[] = {0};
5074 TRACE("<NULL>\n");
5075 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5076 }
5077 es->x_offset = 0;
5078 es->flags &= ~EF_MODIFIED;
5079 EDIT_EM_SetSel(es, 0, 0, FALSE);
5080
5081 /* Send the notification after the selection start and end have been set
5082 * edit control doesn't send notification on WM_SETTEXT
5083 * if it is multiline, or it is part of combobox
5084 */
5085 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5086 {
5087 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5088 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5089 }
5090 EDIT_EM_ScrollCaret(es);
5091 EDIT_UpdateScrollInfo(es);
5092 }
5093
5094
5095 /*********************************************************************
5096 *
5097 * WM_SIZE
5098 *
5099 */
5100 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5101 {
5102 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5103 RECT rc;
5104 TRACE("width = %d, height = %d\n", width, height);
5105 SetRect(&rc, 0, 0, width, height);
5106 EDIT_SetRectNP(es, &rc);
5107 EDIT_UpdateText(es, NULL, TRUE);
5108 }
5109 }
5110
5111
5112 /*********************************************************************
5113 *
5114 * WM_STYLECHANGED
5115 *
5116 * This message is sent by SetWindowLong on having changed either the Style
5117 * or the extended style.
5118 *
5119 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5120 *
5121 * See also EDIT_WM_NCCreate
5122 *
5123 * It appears that the Windows version of the edit control allows the style
5124 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5125 * style variable which will generally be different. In this function we
5126 * update the internal style based on what changed in the externally visible
5127 * style.
5128 *
5129 * Much of this content as based upon the MSDN, especially:
5130 * Platform SDK Documentation -> User Interface Services ->
5131 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5132 * Edit Control Styles
5133 */
5134 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5135 {
5136 if (GWL_STYLE == which) {
5137 DWORD style_change_mask;
5138 DWORD new_style;
5139 /* Only a subset of changes can be applied after the control
5140 * has been created.
5141 */
5142 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5143 ES_NUMBER;
5144 if (es->style & ES_MULTILINE)
5145 style_change_mask |= ES_WANTRETURN;
5146
5147 new_style = style->styleNew & style_change_mask;
5148
5149 /* Number overrides lowercase overrides uppercase (at least it
5150 * does in Win95). However I'll bet that ES_NUMBER would be
5151 * invalid under Win 3.1.
5152 */
5153 if (new_style & ES_NUMBER) {
5154 ; /* do not override the ES_NUMBER */
5155 } else if (new_style & ES_LOWERCASE) {
5156 new_style &= ~ES_UPPERCASE;
5157 }
5158
5159 es->style = (es->style & ~style_change_mask) | new_style;
5160 } else if (GWL_EXSTYLE == which) {
5161 ; /* FIXME - what is needed here */
5162 } else {
5163 WARN ("Invalid style change %ld\n",which);
5164 }
5165
5166 return 0;
5167 }
5168
5169 /*********************************************************************
5170 *
5171 * WM_SYSKEYDOWN
5172 *
5173 */
5174 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5175 {
5176 if ((key == VK_BACK) && (key_data & 0x2000)) {
5177 if (EDIT_EM_CanUndo(es))
5178 EDIT_EM_Undo(es);
5179 return 0;
5180 } else if (key == VK_UP || key == VK_DOWN) {
5181 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5182 return 0;
5183 }
5184 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5185 }
5186
5187
5188 /*********************************************************************
5189 *
5190 * WM_TIMER
5191 *
5192 */
5193 static void EDIT_WM_Timer(EDITSTATE *es)
5194 {
5195 if (es->region_posx < 0) {
5196 EDIT_MoveBackward(es, TRUE);
5197 } else if (es->region_posx > 0) {
5198 EDIT_MoveForward(es, TRUE);
5199 }
5200 /*
5201 * FIXME: gotta do some vertical scrolling here, like
5202 * EDIT_EM_LineScroll(hwnd, 0, 1);
5203 */
5204 }
5205
5206 /*********************************************************************
5207 *
5208 * WM_VSCROLL
5209 *
5210 */
5211 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5212 {
5213 INT dy;
5214
5215 if (!(es->style & ES_MULTILINE))
5216 return 0;
5217
5218 if (!(es->style & ES_AUTOVSCROLL))
5219 return 0;
5220
5221 dy = 0;
5222 switch (action) {
5223 case SB_LINEUP:
5224 case SB_LINEDOWN:
5225 case SB_PAGEUP:
5226 case SB_PAGEDOWN:
5227 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5228 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5229 (action == SB_PAGEUP ? "SB_PAGEUP" :
5230 "SB_PAGEDOWN"))));
5231 EDIT_EM_Scroll(es, action);
5232 return 0;
5233 case SB_TOP:
5234 TRACE("SB_TOP\n");
5235 dy = -es->y_offset;
5236 break;
5237 case SB_BOTTOM:
5238 TRACE("SB_BOTTOM\n");
5239 dy = es->line_count - 1 - es->y_offset;
5240 break;
5241 case SB_THUMBTRACK:
5242 TRACE("SB_THUMBTRACK %d\n", pos);
5243 es->flags |= EF_VSCROLL_TRACK;
5244 if(es->style & WS_VSCROLL)
5245 dy = pos - es->y_offset;
5246 else
5247 {
5248 /* Assume default scroll range 0-100 */
5249 INT vlc, new_y;
5250 /* Sanity check */
5251 if(pos < 0 || pos > 100) return 0;
5252 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5253 new_y = pos * (es->line_count - vlc) / 100;
5254 dy = es->line_count ? (new_y - es->y_offset) : 0;
5255 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5256 es->line_count, es->y_offset, pos, dy);
5257 }
5258 break;
5259 case SB_THUMBPOSITION:
5260 TRACE("SB_THUMBPOSITION %d\n", pos);
5261 es->flags &= ~EF_VSCROLL_TRACK;
5262 if(es->style & WS_VSCROLL)
5263 dy = pos - es->y_offset;
5264 else
5265 {
5266 /* Assume default scroll range 0-100 */
5267 INT vlc, new_y;
5268 /* Sanity check */
5269 if(pos < 0 || pos > 100) return 0;
5270 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5271 new_y = pos * (es->line_count - vlc) / 100;
5272 dy = es->line_count ? (new_y - es->y_offset) : 0;
5273 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5274 es->line_count, es->y_offset, pos, dy);
5275 }
5276 if (!dy)
5277 {
5278 /* force scroll info update */
5279 EDIT_UpdateScrollInfo(es);
5280 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5281 }
5282 break;
5283 case SB_ENDSCROLL:
5284 TRACE("SB_ENDSCROLL\n");
5285 break;
5286 /*
5287 * FIXME : the next two are undocumented !
5288 * Are we doing the right thing ?
5289 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5290 * although it's also a regular control message.
5291 */
5292 case EM_GETTHUMB: /* this one is used by NT notepad */
5293 case EM_GETTHUMB16:
5294 {
5295 LRESULT ret;
5296 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5297 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5298 else
5299 {
5300 /* Assume default scroll range 0-100 */
5301 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5302 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5303 }
5304 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5305 return ret;
5306 }
5307 case EM_LINESCROLL16:
5308 TRACE("EM_LINESCROLL16 %d\n", pos);
5309 dy = pos;
5310 break;
5311
5312 default:
5313 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5314 action, action);
5315 return 0;
5316 }
5317 if (dy)
5318 EDIT_EM_LineScroll(es, 0, dy);
5319 return 0;
5320 }
5321
5322 /*********************************************************************
5323 *
5324 * EDIT_UpdateText
5325 *
5326 */
5327 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5328 {
5329 if (es->flags & EF_UPDATE) {
5330 es->flags &= ~EF_UPDATE;
5331 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5332 }
5333 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5334 }
5335
5336
5337 /*********************************************************************
5338 *
5339 * EDIT_UpdateText
5340 *
5341 */
5342 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
5343 {
5344 if (es->flags & EF_UPDATE) {
5345 es->flags &= ~EF_UPDATE;
5346 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5347 }
5348 InvalidateRect(es->hwndSelf, rc, bErase);
5349 }
5350
5351 /********************************************************************
5352 *
5353 * The Following code is to handle inline editing from IMEs
5354 */
5355
5356 static void EDIT_GetCompositionStr(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5357 {
5358 DWORD dwBufLen;
5359 LPWSTR lpCompStr = NULL;
5360 HIMC hIMC;
5361 LPSTR lpCompStrAttr = NULL;
5362 DWORD dwBufLenAttr;
5363
5364 if (!(hIMC = ImmGetContext(hwnd)))
5365 return;
5366
5367 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5368
5369 if (dwBufLen < 0)
5370 {
5371 ImmReleaseContext(hwnd, hIMC);
5372 return;
5373 }
5374
5375 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
5376 if (!lpCompStr)
5377 {
5378 ERR("Unable to allocate IME CompositionString\n");
5379 ImmReleaseContext(hwnd,hIMC);
5380 return;
5381 }
5382
5383 if (dwBufLen)
5384 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
5385 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
5386
5387 if (CompFlag & GCS_COMPATTR)
5388 {
5389 /*
5390 * We do not use the attributes yet. it would tell us what characters
5391 * are in transition and which are converted or decided upon
5392 */
5393 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5394 if (dwBufLenAttr)
5395 {
5396 dwBufLenAttr ++;
5397 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
5398 if (!lpCompStrAttr)
5399 {
5400 ERR("Unable to allocate IME Attribute String\n");
5401 HeapFree(GetProcessHeap(),0,lpCompStr);
5402 ImmReleaseContext(hwnd,hIMC);
5403 return;
5404 }
5405 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5406 dwBufLenAttr);
5407 lpCompStrAttr[dwBufLenAttr] = 0;
5408 }
5409 else
5410 lpCompStrAttr = NULL;
5411 }
5412
5413 /* check for change in composition start */
5414 if (es->selection_end < es->composition_start)
5415 es->composition_start = es->selection_end;
5416
5417 /* replace existing selection string */
5418 es->selection_start = es->composition_start;
5419
5420 if (es->composition_len > 0)
5421 es->selection_end = es->composition_start + es->composition_len;
5422 else
5423 es->selection_end = es->selection_start;
5424
5425 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5426 es->composition_len = abs(es->composition_start - es->selection_end);
5427
5428 es->selection_start = es->composition_start;
5429 es->selection_end = es->selection_start + es->composition_len;
5430
5431 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5432 HeapFree(GetProcessHeap(),0,lpCompStr);
5433 ImmReleaseContext(hwnd,hIMC);
5434 }
5435
5436 static void EDIT_GetResultStr(HWND hwnd, EDITSTATE *es)
5437 {
5438 DWORD dwBufLen;
5439 LPWSTR lpResultStr;
5440 HIMC hIMC;
5441
5442 if ( !(hIMC = ImmGetContext(hwnd)))
5443 return;
5444
5445 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5446 if (dwBufLen <= 0)
5447 {
5448 ImmReleaseContext(hwnd, hIMC);
5449 return;
5450 }
5451
5452 lpResultStr = HeapAlloc(GetProcessHeap(),0, dwBufLen+sizeof(WCHAR));
5453 if (!lpResultStr)
5454 {
5455 ERR("Unable to alloc buffer for IME string\n");
5456 ImmReleaseContext(hwnd, hIMC);
5457 return;
5458 }
5459
5460 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, dwBufLen);
5461 lpResultStr[dwBufLen/sizeof(WCHAR)] = 0;
5462
5463 /* check for change in composition start */
5464 if (es->selection_end < es->composition_start)
5465 es->composition_start = es->selection_end;
5466
5467 es->selection_start = es->composition_start;
5468 es->selection_end = es->composition_start + es->composition_len;
5469 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5470 es->composition_start = es->selection_end;
5471 es->composition_len = 0;
5472
5473 HeapFree(GetProcessHeap(),0,lpResultStr);
5474 ImmReleaseContext(hwnd, hIMC);
5475 }
5476
5477 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5478 {
5479 if (CompFlag & GCS_RESULTSTR)
5480 EDIT_GetResultStr(hwnd,es);
5481 if (CompFlag & GCS_COMPSTR)
5482 EDIT_GetCompositionStr(hwnd, CompFlag, es);
5483 }
useful hacks and other patches not (yet) suitable for mainline