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winealsa.drv: Do nothing if HAVE_ALSA is not defined.
[wine.git] / dlls / user32 / edit.c
blob6914906e0bf7a4d5a615c7852b6cc3e38a25d6ad
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(const 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(const 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, BOOL ctrl);
215 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
216 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl);
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, const RECT *lprc);
224 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
225 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
226 static INT 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(const 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(const 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, const INT *tabs);
253 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *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 LRESULT 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 INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode);
267 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
268 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
269 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
270 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
271 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
272 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
273 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
274 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
275 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
276 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc);
277 static void EDIT_WM_Paste(EDITSTATE *es);
278 static void EDIT_WM_SetFocus(EDITSTATE *es);
279 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
280 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode);
281 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
282 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
283 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
284 static void EDIT_WM_Timer(EDITSTATE *es);
285 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
286 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase);
287 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
288 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es);
289
290 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
291 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
292
293 /*********************************************************************
294 * edit class descriptor
295 */
296 static const WCHAR editW[] = {'E','d','i','t',0};
297 const struct builtin_class_descr EDIT_builtin_class =
298 {
299 editW, /* 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(const 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 static inline INT get_vertical_line_count(EDITSTATE *es)
434 {
435 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
436 return max(1,vlc);
437 }
438
439 /*********************************************************************
440 *
441 * EditWndProc_common
442 *
443 * The messages are in the order of the actual integer values
444 * (which can be found in include/windows.h)
445 * Wherever possible the 16 bit versions are converted to
446 * the 32 bit ones, so that we can 'fall through' to the
447 * helper functions. These are mostly 32 bit (with a few
448 * exceptions, clearly indicated by a '16' extension to their
449 * names).
450 *
451 */
452 static LRESULT EditWndProc_common( HWND hwnd, UINT msg,
453 WPARAM wParam, LPARAM lParam, BOOL unicode )
454 {
455 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
456 LRESULT result = 0;
457
458 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
459
460 if (!es && msg != WM_NCCREATE)
461 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
462
463 if (es && (msg != WM_DESTROY)) EDIT_LockBuffer(es);
464
465 switch (msg) {
466 case EM_GETSEL16:
467 wParam = 0;
468 lParam = 0;
469 /* fall through */
470 case EM_GETSEL:
471 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
472 break;
473
474 case EM_SETSEL16:
475 if ((short)LOWORD(lParam) == -1)
476 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
477 else
478 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
479 if (!wParam)
480 EDIT_EM_ScrollCaret(es);
481 result = 1;
482 break;
483 case EM_SETSEL:
484 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
485 EDIT_EM_ScrollCaret(es);
486 result = 1;
487 break;
488
489 case EM_GETRECT16:
490 if (lParam)
491 {
492 RECT16 *r16 = MapSL(lParam);
493 r16->left = es->format_rect.left;
494 r16->top = es->format_rect.top;
495 r16->right = es->format_rect.right;
496 r16->bottom = es->format_rect.bottom;
497 }
498 break;
499 case EM_GETRECT:
500 if (lParam)
501 CopyRect((LPRECT)lParam, &es->format_rect);
502 break;
503
504 case EM_SETRECT16:
505 if ((es->style & ES_MULTILINE) && lParam) {
506 RECT rc;
507 RECT16 *r16 = MapSL(lParam);
508 rc.left = r16->left;
509 rc.top = r16->top;
510 rc.right = r16->right;
511 rc.bottom = r16->bottom;
512 EDIT_SetRectNP(es, &rc);
513 EDIT_UpdateText(es, NULL, TRUE);
514 }
515 break;
516 case EM_SETRECT:
517 if ((es->style & ES_MULTILINE) && lParam) {
518 EDIT_SetRectNP(es, (LPRECT)lParam);
519 EDIT_UpdateText(es, NULL, TRUE);
520 }
521 break;
522
523 case EM_SETRECTNP16:
524 if ((es->style & ES_MULTILINE) && lParam) {
525 RECT rc;
526 RECT16 *r16 = MapSL(lParam);
527 rc.left = r16->left;
528 rc.top = r16->top;
529 rc.right = r16->right;
530 rc.bottom = r16->bottom;
531 EDIT_SetRectNP(es, &rc);
532 }
533 break;
534 case EM_SETRECTNP:
535 if ((es->style & ES_MULTILINE) && lParam)
536 EDIT_SetRectNP(es, (LPRECT)lParam);
537 break;
538
539 case EM_SCROLL16:
540 case EM_SCROLL:
541 result = EDIT_EM_Scroll(es, (INT)wParam);
542 break;
543
544 case EM_LINESCROLL16:
545 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
546 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
547 /* fall through */
548 case EM_LINESCROLL:
549 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
550 break;
551
552 case EM_SCROLLCARET16:
553 case EM_SCROLLCARET:
554 EDIT_EM_ScrollCaret(es);
555 result = 1;
556 break;
557
558 case EM_GETMODIFY16:
559 case EM_GETMODIFY:
560 result = ((es->flags & EF_MODIFIED) != 0);
561 break;
562
563 case EM_SETMODIFY16:
564 case EM_SETMODIFY:
565 if (wParam)
566 es->flags |= EF_MODIFIED;
567 else
568 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
569 break;
570
571 case EM_GETLINECOUNT16:
572 case EM_GETLINECOUNT:
573 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
574 break;
575
576 case EM_LINEINDEX16:
577 if ((INT16)wParam == -1)
578 wParam = (WPARAM)-1;
579 /* fall through */
580 case EM_LINEINDEX:
581 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
582 break;
583
584 case EM_SETHANDLE16:
585 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
586 break;
587 case EM_SETHANDLE:
588 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
589 break;
590
591 case EM_GETHANDLE16:
592 result = (LRESULT)EDIT_EM_GetHandle16(es);
593 break;
594 case EM_GETHANDLE:
595 result = (LRESULT)EDIT_EM_GetHandle(es);
596 break;
597
598 case EM_GETTHUMB16:
599 case EM_GETTHUMB:
600 result = EDIT_EM_GetThumb(es);
601 break;
602
603 /* these messages missing from specs */
604 case WM_USER+15:
605 case 0x00bf:
606 case WM_USER+16:
607 case 0x00c0:
608 case WM_USER+19:
609 case 0x00c3:
610 case WM_USER+26:
611 case 0x00ca:
612 FIXME("undocumented message 0x%x, please report\n", msg);
613 result = DefWindowProcW(hwnd, msg, wParam, lParam);
614 break;
615
616 case EM_LINELENGTH16:
617 case EM_LINELENGTH:
618 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
619 break;
620
621 case EM_REPLACESEL16:
622 lParam = (LPARAM)MapSL(lParam);
623 unicode = FALSE; /* 16-bit message is always ascii */
624 /* fall through */
625 case EM_REPLACESEL:
626 {
627 LPWSTR textW;
628
629 if(unicode)
630 textW = (LPWSTR)lParam;
631 else
632 {
633 LPSTR textA = (LPSTR)lParam;
634 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
635 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
636 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
637 }
638
639 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
640 result = 1;
641
642 if(!unicode)
643 HeapFree(GetProcessHeap(), 0, textW);
644 break;
645 }
646
647 case EM_GETLINE16:
648 lParam = (LPARAM)MapSL(lParam);
649 unicode = FALSE; /* 16-bit message is always ascii */
650 /* fall through */
651 case EM_GETLINE:
652 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
653 break;
654
655 case EM_LIMITTEXT16:
656 case EM_SETLIMITTEXT:
657 EDIT_EM_SetLimitText(es, wParam);
658 break;
659
660 case EM_CANUNDO16:
661 case EM_CANUNDO:
662 result = (LRESULT)EDIT_EM_CanUndo(es);
663 break;
664
665 case EM_UNDO16:
666 case EM_UNDO:
667 case WM_UNDO:
668 result = (LRESULT)EDIT_EM_Undo(es);
669 break;
670
671 case EM_FMTLINES16:
672 case EM_FMTLINES:
673 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
674 break;
675
676 case EM_LINEFROMCHAR16:
677 case EM_LINEFROMCHAR:
678 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
679 break;
680
681 case EM_SETTABSTOPS16:
682 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
683 break;
684 case EM_SETTABSTOPS:
685 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
686 break;
687
688 case EM_SETPASSWORDCHAR16:
689 unicode = FALSE; /* 16-bit message is always ascii */
690 /* fall through */
691 case EM_SETPASSWORDCHAR:
692 {
693 WCHAR charW = 0;
694
695 if(unicode)
696 charW = (WCHAR)wParam;
697 else
698 {
699 CHAR charA = wParam;
700 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
701 }
702
703 EDIT_EM_SetPasswordChar(es, charW);
704 break;
705 }
706
707 case EM_EMPTYUNDOBUFFER16:
708 case EM_EMPTYUNDOBUFFER:
709 EDIT_EM_EmptyUndoBuffer(es);
710 break;
711
712 case EM_GETFIRSTVISIBLELINE16:
713 result = es->y_offset;
714 break;
715 case EM_GETFIRSTVISIBLELINE:
716 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
717 break;
718
719 case EM_SETREADONLY16:
720 case EM_SETREADONLY:
721 if (wParam) {
722 SetWindowLongW( hwnd, GWL_STYLE,
723 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
724 es->style |= ES_READONLY;
725 } else {
726 SetWindowLongW( hwnd, GWL_STYLE,
727 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
728 es->style &= ~ES_READONLY;
729 }
730 result = 1;
731 break;
732
733 case EM_SETWORDBREAKPROC16:
734 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
735 break;
736 case EM_SETWORDBREAKPROC:
737 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
738 break;
739
740 case EM_GETWORDBREAKPROC16:
741 result = (LRESULT)es->word_break_proc16;
742 break;
743 case EM_GETWORDBREAKPROC:
744 result = (LRESULT)es->word_break_proc;
745 break;
746
747 case EM_GETPASSWORDCHAR16:
748 unicode = FALSE; /* 16-bit message is always ascii */
749 /* fall through */
750 case EM_GETPASSWORDCHAR:
751 {
752 if(unicode)
753 result = es->password_char;
754 else
755 {
756 WCHAR charW = es->password_char;
757 CHAR charA = 0;
758 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
759 result = charA;
760 }
761 break;
762 }
763
764 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
765
766 case EM_SETMARGINS:
767 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
768 break;
769
770 case EM_GETMARGINS:
771 result = MAKELONG(es->left_margin, es->right_margin);
772 break;
773
774 case EM_GETLIMITTEXT:
775 result = es->buffer_limit;
776 break;
777
778 case EM_POSFROMCHAR:
779 if ((INT)wParam >= get_text_length(es)) result = -1;
780 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
781 break;
782
783 case EM_CHARFROMPOS:
784 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
785 break;
786
787 /* End of the EM_ messages which were in numerical order; what order
788 * are these in? vaguely alphabetical?
789 */
790
791 case WM_NCCREATE:
792 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
793 break;
794
795 case WM_DESTROY:
796 result = EDIT_WM_Destroy(es);
797 es = NULL;
798 break;
799
800 case WM_GETDLGCODE:
801 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
802
803 if (es->style & ES_MULTILINE)
804 result |= DLGC_WANTALLKEYS;
805
806 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
807 {
808 int vk = (int)((LPMSG)lParam)->wParam;
809
810 if (es->hwndListBox)
811 {
812 if (vk == VK_RETURN || vk == VK_ESCAPE)
813 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
814 result |= DLGC_WANTMESSAGE;
815 }
816 else
817 {
818 switch (vk)
819 {
820 case VK_ESCAPE:
821 SendMessageW(GetParent(hwnd), WM_CLOSE, 0, 0);
822 break;
823 default:
824 break;
825 }
826 }
827 }
828 break;
829
830 case WM_IME_CHAR:
831 if (!unicode)
832 {
833 WCHAR charW;
834 CHAR strng[2];
835
836 strng[0] = wParam >> 8;
837 strng[1] = wParam & 0xff;
838 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
839 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
840 result = EDIT_WM_Char(es, charW);
841 break;
842 }
843 /* fall through */
844 case WM_CHAR:
845 {
846 WCHAR charW;
847
848 if(unicode)
849 charW = wParam;
850 else
851 {
852 CHAR charA = wParam;
853 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
854 }
855
856 if (es->hwndListBox)
857 {
858 if (charW == VK_RETURN || charW == VK_ESCAPE)
859 {
860 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
861 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
862 break;
863 }
864 }
865 result = EDIT_WM_Char(es, charW);
866 break;
867 }
868
869 case WM_UNICHAR:
870 if (unicode)
871 {
872 if (wParam == UNICODE_NOCHAR) return TRUE;
873 if (wParam <= 0x000fffff)
874 {
875 if(wParam > 0xffff) /* convert to surrogates */
876 {
877 wParam -= 0x10000;
878 EDIT_WM_Char(es, (wParam >> 10) + 0xd800);
879 EDIT_WM_Char(es, (wParam & 0x03ff) + 0xdc00);
880 }
881 else EDIT_WM_Char(es, wParam);
882 }
883 return 0;
884 }
885 break;
886
887 case WM_CLEAR:
888 EDIT_WM_Clear(es);
889 break;
890
891 case WM_COMMAND:
892 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
893 break;
894
895 case WM_CONTEXTMENU:
896 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
897 break;
898
899 case WM_COPY:
900 EDIT_WM_Copy(es);
901 break;
902
903 case WM_CREATE:
904 if(unicode)
905 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
906 else
907 {
908 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
909 LPWSTR nameW = NULL;
910 if(nameA)
911 {
912 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
913 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
914 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
915 }
916 result = EDIT_WM_Create(es, nameW);
917 HeapFree(GetProcessHeap(), 0, nameW);
918 }
919 break;
920
921 case WM_CUT:
922 EDIT_WM_Cut(es);
923 break;
924
925 case WM_ENABLE:
926 es->bEnableState = (BOOL) wParam;
927 EDIT_UpdateText(es, NULL, TRUE);
928 break;
929
930 case WM_ERASEBKGND:
931 /* we do the proper erase in EDIT_WM_Paint */
932 result = 1;
933 break;
934
935 case WM_GETFONT:
936 result = (LRESULT)es->font;
937 break;
938
939 case WM_GETTEXT:
940 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
941 break;
942
943 case WM_GETTEXTLENGTH:
944 if (unicode) result = get_text_length(es);
945 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
946 NULL, 0, NULL, NULL );
947 break;
948
949 case WM_HSCROLL:
950 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
951 break;
952
953 case WM_KEYDOWN:
954 result = EDIT_WM_KeyDown(es, (INT)wParam);
955 break;
956
957 case WM_KILLFOCUS:
958 result = EDIT_WM_KillFocus(es);
959 break;
960
961 case WM_LBUTTONDBLCLK:
962 result = EDIT_WM_LButtonDblClk(es);
963 break;
964
965 case WM_LBUTTONDOWN:
966 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
967 break;
968
969 case WM_LBUTTONUP:
970 result = EDIT_WM_LButtonUp(es);
971 break;
972
973 case WM_MBUTTONDOWN:
974 result = EDIT_WM_MButtonDown(es);
975 break;
976
977 case WM_MOUSEMOVE:
978 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
979 break;
980
981 case WM_PRINTCLIENT:
982 case WM_PAINT:
983 EDIT_WM_Paint(es, (HDC)wParam);
984 break;
985
986 case WM_PASTE:
987 EDIT_WM_Paste(es);
988 break;
989
990 case WM_SETFOCUS:
991 EDIT_WM_SetFocus(es);
992 break;
993
994 case WM_SETFONT:
995 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
996 break;
997
998 case WM_SETREDRAW:
999 /* FIXME: actually set an internal flag and behave accordingly */
1000 break;
1001
1002 case WM_SETTEXT:
1003 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
1004 result = TRUE;
1005 break;
1006
1007 case WM_SIZE:
1008 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
1009 break;
1010
1011 case WM_STYLECHANGED:
1012 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
1013 break;
1014
1015 case WM_STYLECHANGING:
1016 result = 0; /* See EDIT_WM_StyleChanged */
1017 break;
1018
1019 case WM_SYSKEYDOWN:
1020 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
1021 break;
1022
1023 case WM_TIMER:
1024 EDIT_WM_Timer(es);
1025 break;
1026
1027 case WM_VSCROLL:
1028 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
1029 break;
1030
1031 case WM_MOUSEWHEEL:
1032 {
1033 int gcWheelDelta = 0;
1034 UINT pulScrollLines = 3;
1035 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1036
1037 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1038 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1039 break;
1040 }
1041 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1042 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1043 {
1044 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1045 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1046 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1047 }
1048 }
1049 break;
1050
1051
1052 /* IME messages to make the edit control IME aware */
1053 case WM_IME_SETCONTEXT:
1054 break;
1055
1056 case WM_IME_STARTCOMPOSITION:
1057 es->composition_start = es->selection_end;
1058 es->composition_len = 0;
1059 break;
1060
1061 case WM_IME_COMPOSITION:
1062 EDIT_ImeComposition(hwnd, lParam, es);
1063 break;
1064
1065 case WM_IME_ENDCOMPOSITION:
1066 if (es->composition_len > 0)
1067 {
1068 static const WCHAR empty_stringW[] = {0};
1069 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1070 es->selection_end = es->selection_start;
1071 es->composition_len= 0;
1072 }
1073 break;
1074
1075 case WM_IME_COMPOSITIONFULL:
1076 break;
1077
1078 case WM_IME_SELECT:
1079 break;
1080
1081 case WM_IME_CONTROL:
1082 break;
1083
1084 default:
1085 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1086 break;
1087 }
1088
1089 if (es) EDIT_UnlockBuffer(es, FALSE);
1090
1091 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1092
1093 return result;
1094 }
1095
1096 /*********************************************************************
1097 *
1098 * EditWndProcW (USER32.@)
1099 */
1100 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1101 {
1102 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1103 }
1104
1105 /*********************************************************************
1106 *
1107 * EditWndProc (USER32.@)
1108 */
1109 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1110 {
1111 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1112 }
1113
1114 /*********************************************************************
1115 *
1116 * EDIT_BuildLineDefs_ML
1117 *
1118 * Build linked list of text lines.
1119 * Lines can end with '\0' (last line), a character (if it is wrapped),
1120 * a soft return '\r\r\n' or a hard return '\r\n'
1121 *
1122 */
1123 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1124 {
1125 HDC dc;
1126 HFONT old_font = 0;
1127 LPWSTR current_position, cp;
1128 INT fw;
1129 LINEDEF *current_line;
1130 LINEDEF *previous_line;
1131 LINEDEF *start_line;
1132 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1133 INT line_count = es->line_count;
1134 INT orig_net_length;
1135 RECT rc;
1136
1137 if (istart == iend && delta == 0)
1138 return;
1139
1140 dc = GetDC(es->hwndSelf);
1141 if (es->font)
1142 old_font = SelectObject(dc, es->font);
1143
1144 previous_line = NULL;
1145 current_line = es->first_line_def;
1146
1147 /* Find starting line. istart must lie inside an existing line or
1148 * at the end of buffer */
1149 do {
1150 if (istart < current_line->index + current_line->length ||
1151 current_line->ending == END_0)
1152 break;
1153
1154 previous_line = current_line;
1155 current_line = current_line->next;
1156 line_index++;
1157 } while (current_line);
1158
1159 if (!current_line) /* Error occurred start is not inside previous buffer */
1160 {
1161 FIXME(" modification occurred outside buffer\n");
1162 ReleaseDC(es->hwndSelf, dc);
1163 return;
1164 }
1165
1166 /* Remember start of modifications in order to calculate update region */
1167 nstart_line = line_index;
1168 nstart_index = current_line->index;
1169
1170 /* We must start to reformat from the previous line since the modifications
1171 * may have caused the line to wrap upwards. */
1172 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1173 {
1174 line_index--;
1175 current_line = previous_line;
1176 }
1177 start_line = current_line;
1178
1179 fw = es->format_rect.right - es->format_rect.left;
1180 current_position = es->text + current_line->index;
1181 do {
1182 if (current_line != start_line)
1183 {
1184 if (!current_line || current_line->index + delta > current_position - es->text)
1185 {
1186 /* The buffer has been expanded, create a new line and
1187 insert it into the link list */
1188 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1189 new_line->next = previous_line->next;
1190 previous_line->next = new_line;
1191 current_line = new_line;
1192 es->line_count++;
1193 }
1194 else if (current_line->index + delta < current_position - es->text)
1195 {
1196 /* The previous line merged with this line so we delete this extra entry */
1197 previous_line->next = current_line->next;
1198 HeapFree(GetProcessHeap(), 0, current_line);
1199 current_line = previous_line->next;
1200 es->line_count--;
1201 continue;
1202 }
1203 else /* current_line->index + delta == current_position */
1204 {
1205 if (current_position - es->text > iend)
1206 break; /* We reached end of line modifications */
1207 /* else recalculate this line */
1208 }
1209 }
1210
1211 current_line->index = current_position - es->text;
1212 orig_net_length = current_line->net_length;
1213
1214 /* Find end of line */
1215 cp = current_position;
1216 while (*cp) {
1217 if (*cp == '\n') break;
1218 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1219 break;
1220 cp++;
1221 }
1222
1223 /* Mark type of line termination */
1224 if (!(*cp)) {
1225 current_line->ending = END_0;
1226 current_line->net_length = strlenW(current_position);
1227 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1228 current_line->ending = END_SOFT;
1229 current_line->net_length = cp - current_position - 1;
1230 } else if (*cp == '\n') {
1231 current_line->ending = END_RICH;
1232 current_line->net_length = cp - current_position;
1233 } else {
1234 current_line->ending = END_HARD;
1235 current_line->net_length = cp - current_position;
1236 }
1237
1238 /* Calculate line width */
1239 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1240 current_position, current_line->net_length,
1241 es->tabs_count, es->tabs));
1242
1243 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1244 if (!(es->style & ES_AUTOHSCROLL)) {
1245 if (current_line->width > fw) {
1246 INT next = 0;
1247 INT prev;
1248 do {
1249 prev = next;
1250 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1251 prev + 1, current_line->net_length, WB_RIGHT);
1252 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1253 current_position, next, es->tabs_count, es->tabs));
1254 } while (current_line->width <= fw);
1255 if (!prev) { /* Didn't find a line break so force a break */
1256 next = 0;
1257 do {
1258 prev = next;
1259 next++;
1260 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1261 current_position, next, es->tabs_count, es->tabs));
1262 } while (current_line->width <= fw);
1263 if (!prev)
1264 prev = 1;
1265 }
1266
1267 /* If the first line we are calculating, wrapped before istart, we must
1268 * adjust istart in order for this to be reflected in the update region. */
1269 if (current_line->index == nstart_index && istart > current_line->index + prev)
1270 istart = current_line->index + prev;
1271 /* else if we are updating the previous line before the first line we
1272 * are re-calculating and it expanded */
1273 else if (current_line == start_line &&
1274 current_line->index != nstart_index && orig_net_length < prev)
1275 {
1276 /* Line expanded due to an upwards line wrap so we must partially include
1277 * previous line in update region */
1278 nstart_line = line_index;
1279 nstart_index = current_line->index;
1280 istart = current_line->index + orig_net_length;
1281 }
1282
1283 current_line->net_length = prev;
1284 current_line->ending = END_WRAP;
1285 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1286 current_line->net_length, es->tabs_count, es->tabs));
1287 }
1288 else if (current_line == start_line &&
1289 current_line->index != nstart_index &&
1290 orig_net_length < current_line->net_length) {
1291 /* The previous line expanded but it's still not as wide as the client rect */
1292 /* The expansion is due to an upwards line wrap so we must partially include
1293 it in the update region */
1294 nstart_line = line_index;
1295 nstart_index = current_line->index;
1296 istart = current_line->index + orig_net_length;
1297 }
1298 }
1299
1300
1301 /* Adjust length to include line termination */
1302 switch (current_line->ending) {
1303 case END_SOFT:
1304 current_line->length = current_line->net_length + 3;
1305 break;
1306 case END_RICH:
1307 current_line->length = current_line->net_length + 1;
1308 break;
1309 case END_HARD:
1310 current_line->length = current_line->net_length + 2;
1311 break;
1312 case END_WRAP:
1313 case END_0:
1314 current_line->length = current_line->net_length;
1315 break;
1316 }
1317 es->text_width = max(es->text_width, current_line->width);
1318 current_position += current_line->length;
1319 previous_line = current_line;
1320 current_line = current_line->next;
1321 line_index++;
1322 } while (previous_line->ending != END_0);
1323
1324 /* Finish adjusting line indexes by delta or remove hanging lines */
1325 if (previous_line->ending == END_0)
1326 {
1327 LINEDEF *pnext = NULL;
1328
1329 previous_line->next = NULL;
1330 while (current_line)
1331 {
1332 pnext = current_line->next;
1333 HeapFree(GetProcessHeap(), 0, current_line);
1334 current_line = pnext;
1335 es->line_count--;
1336 }
1337 }
1338 else if (delta != 0)
1339 {
1340 while (current_line)
1341 {
1342 current_line->index += delta;
1343 current_line = current_line->next;
1344 }
1345 }
1346
1347 /* Calculate rest of modification rectangle */
1348 if (hrgn)
1349 {
1350 HRGN tmphrgn;
1351 /*
1352 * We calculate two rectangles. One for the first line which may have
1353 * an indent with respect to the format rect. The other is a format-width
1354 * rectangle that spans the rest of the lines that changed or moved.
1355 */
1356 rc.top = es->format_rect.top + nstart_line * es->line_height -
1357 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1358 rc.bottom = rc.top + es->line_height;
1359 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1360 rc.left = es->format_rect.left;
1361 else
1362 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1363 es->text + nstart_index, istart - nstart_index,
1364 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1365 rc.right = es->format_rect.right;
1366 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1367
1368 rc.top = rc.bottom;
1369 rc.left = es->format_rect.left;
1370 rc.right = es->format_rect.right;
1371 /*
1372 * If lines were added or removed we must re-paint the remainder of the
1373 * lines since the remaining lines were either shifted up or down.
1374 */
1375 if (line_count < es->line_count) /* We added lines */
1376 rc.bottom = es->line_count * es->line_height;
1377 else if (line_count > es->line_count) /* We removed lines */
1378 rc.bottom = line_count * es->line_height;
1379 else
1380 rc.bottom = line_index * es->line_height;
1381 rc.bottom += es->format_rect.top;
1382 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1383 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1384 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1385 DeleteObject(tmphrgn);
1386 }
1387
1388 if (es->font)
1389 SelectObject(dc, old_font);
1390
1391 ReleaseDC(es->hwndSelf, dc);
1392 }
1393
1394 /*********************************************************************
1395 *
1396 * EDIT_CalcLineWidth_SL
1397 *
1398 */
1399 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1400 {
1401 SIZE size;
1402 LPWSTR text;
1403 HDC dc;
1404 HFONT old_font = 0;
1405
1406 text = EDIT_GetPasswordPointer_SL(es);
1407
1408 dc = GetDC(es->hwndSelf);
1409 if (es->font)
1410 old_font = SelectObject(dc, es->font);
1411
1412 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1413
1414 if (es->font)
1415 SelectObject(dc, old_font);
1416 ReleaseDC(es->hwndSelf, dc);
1417
1418 if (es->style & ES_PASSWORD)
1419 HeapFree(GetProcessHeap(), 0, text);
1420
1421 es->text_width = size.cx;
1422 }
1423
1424 /*********************************************************************
1425 *
1426 * EDIT_CallWordBreakProc
1427 *
1428 * Call appropriate WordBreakProc (internal or external).
1429 *
1430 * Note: The "start" argument should always be an index referring
1431 * to es->text. The actual wordbreak proc might be
1432 * 16 bit, so we can't always pass any 32 bit LPSTR.
1433 * Hence we assume that es->text is the buffer that holds
1434 * the string under examination (we can decide this for ourselves).
1435 *
1436 */
1437 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1438 {
1439 INT ret;
1440
1441 if (es->word_break_proc16) {
1442 HGLOBAL16 hglob16;
1443 SEGPTR segptr;
1444 INT countA;
1445 WORD args[5];
1446 DWORD result;
1447
1448 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1449 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1450 segptr = WOWGlobalLock16(hglob16);
1451 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1452 args[4] = SELECTOROF(segptr);
1453 args[3] = OFFSETOF(segptr);
1454 args[2] = index;
1455 args[1] = countA;
1456 args[0] = action;
1457 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1458 ret = LOWORD(result);
1459 GlobalUnlock16(hglob16);
1460 GlobalFree16(hglob16);
1461 }
1462 else if (es->word_break_proc)
1463 {
1464 if(es->is_unicode)
1465 {
1466 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1467
1468 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1469 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1470 ret = wbpW(es->text + start, index, count, action);
1471 }
1472 else
1473 {
1474 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1475 INT countA;
1476 CHAR *textA;
1477
1478 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1479 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1480 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1481 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1482 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1483 ret = wbpA(textA, index, countA, action);
1484 HeapFree(GetProcessHeap(), 0, textA);
1485 }
1486 }
1487 else
1488 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1489
1490 return ret;
1491 }
1492
1493
1494 /*********************************************************************
1495 *
1496 * EDIT_CharFromPos
1497 *
1498 * Beware: This is not the function called on EM_CHARFROMPOS
1499 * The position _can_ be outside the formatting / client
1500 * rectangle
1501 * The return value is only the character index
1502 *
1503 */
1504 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1505 {
1506 INT index;
1507 HDC dc;
1508 HFONT old_font = 0;
1509 INT x_high = 0, x_low = 0;
1510
1511 if (es->style & ES_MULTILINE) {
1512 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1513 INT line_index = 0;
1514 LINEDEF *line_def = es->first_line_def;
1515 INT low, high;
1516 while ((line > 0) && line_def->next) {
1517 line_index += line_def->length;
1518 line_def = line_def->next;
1519 line--;
1520 }
1521 x += es->x_offset - es->format_rect.left;
1522 if (es->style & ES_RIGHT)
1523 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1524 else if (es->style & ES_CENTER)
1525 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1526 if (x >= line_def->width) {
1527 if (after_wrap)
1528 *after_wrap = (line_def->ending == END_WRAP);
1529 return line_index + line_def->net_length;
1530 }
1531 if (x <= 0) {
1532 if (after_wrap)
1533 *after_wrap = FALSE;
1534 return line_index;
1535 }
1536 dc = GetDC(es->hwndSelf);
1537 if (es->font)
1538 old_font = SelectObject(dc, es->font);
1539 low = line_index;
1540 high = line_index + line_def->net_length + 1;
1541 while (low < high - 1)
1542 {
1543 INT mid = (low + high) / 2;
1544 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1545 if (x_now > x) {
1546 high = mid;
1547 x_high = x_now;
1548 } else {
1549 low = mid;
1550 x_low = x_now;
1551 }
1552 }
1553 if (abs(x_high - x) + 1 <= abs(x_low - x))
1554 index = high;
1555 else
1556 index = low;
1557
1558 if (after_wrap)
1559 *after_wrap = ((index == line_index + line_def->net_length) &&
1560 (line_def->ending == END_WRAP));
1561 } else {
1562 LPWSTR text;
1563 SIZE size;
1564 if (after_wrap)
1565 *after_wrap = FALSE;
1566 x -= es->format_rect.left;
1567 if (!x)
1568 return es->x_offset;
1569
1570 if (!es->x_offset)
1571 {
1572 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1573 if (es->style & ES_RIGHT)
1574 x -= indent;
1575 else if (es->style & ES_CENTER)
1576 x -= indent / 2;
1577 }
1578
1579 text = EDIT_GetPasswordPointer_SL(es);
1580 dc = GetDC(es->hwndSelf);
1581 if (es->font)
1582 old_font = SelectObject(dc, es->font);
1583 if (x < 0)
1584 {
1585 INT low = 0;
1586 INT high = es->x_offset;
1587 while (low < high - 1)
1588 {
1589 INT mid = (low + high) / 2;
1590 GetTextExtentPoint32W( dc, text + mid,
1591 es->x_offset - mid, &size );
1592 if (size.cx > -x) {
1593 low = mid;
1594 x_low = size.cx;
1595 } else {
1596 high = mid;
1597 x_high = size.cx;
1598 }
1599 }
1600 if (abs(x_high + x) <= abs(x_low + x) + 1)
1601 index = high;
1602 else
1603 index = low;
1604 }
1605 else
1606 {
1607 INT low = es->x_offset;
1608 INT high = get_text_length(es) + 1;
1609 while (low < high - 1)
1610 {
1611 INT mid = (low + high) / 2;
1612 GetTextExtentPoint32W( dc, text + es->x_offset,
1613 mid - es->x_offset, &size );
1614 if (size.cx > x) {
1615 high = mid;
1616 x_high = size.cx;
1617 } else {
1618 low = mid;
1619 x_low = size.cx;
1620 }
1621 }
1622 if (abs(x_high - x) <= abs(x_low - x) + 1)
1623 index = high;
1624 else
1625 index = low;
1626 }
1627 if (es->style & ES_PASSWORD)
1628 HeapFree(GetProcessHeap(), 0, text);
1629 }
1630 if (es->font)
1631 SelectObject(dc, old_font);
1632 ReleaseDC(es->hwndSelf, dc);
1633 return index;
1634 }
1635
1636
1637 /*********************************************************************
1638 *
1639 * EDIT_ConfinePoint
1640 *
1641 * adjusts the point to be within the formatting rectangle
1642 * (so CharFromPos returns the nearest _visible_ character)
1643 *
1644 */
1645 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
1646 {
1647 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1648 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1649 }
1650
1651
1652 /*********************************************************************
1653 *
1654 * EDIT_GetLineRect
1655 *
1656 * Calculates the bounding rectangle for a line from a starting
1657 * column to an ending column.
1658 *
1659 */
1660 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1661 {
1662 INT line_index = EDIT_EM_LineIndex(es, line);
1663
1664 if (es->style & ES_MULTILINE)
1665 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1666 else
1667 rc->top = es->format_rect.top;
1668 rc->bottom = rc->top + es->line_height;
1669 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1670 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1671 }
1672
1673
1674 /*********************************************************************
1675 *
1676 * EDIT_GetPasswordPointer_SL
1677 *
1678 * note: caller should free the (optionally) allocated buffer
1679 *
1680 */
1681 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1682 {
1683 if (es->style & ES_PASSWORD) {
1684 INT len = get_text_length(es);
1685 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1686 text[len] = '\0';
1687 while(len) text[--len] = es->password_char;
1688 return text;
1689 } else
1690 return es->text;
1691 }
1692
1693
1694 /*********************************************************************
1695 *
1696 * EDIT_LockBuffer
1697 *
1698 * This acts as a LocalLock16(), but it locks only once. This way
1699 * you can call it whenever you like, without unlocking.
1700 *
1701 * Initially the edit control allocates a HLOCAL32 buffer
1702 * (32 bit linear memory handler). However, 16 bit application
1703 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1704 * handler). From that moment on we have to keep using this 16 bit memory
1705 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1706 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1707 * conversion.
1708 *
1709 */
1710 static void EDIT_LockBuffer(EDITSTATE *es)
1711 {
1712 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
1713 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1714
1715 if (!es->text) {
1716 CHAR *textA = NULL;
1717 UINT countA = 0;
1718 BOOL _16bit = FALSE;
1719
1720 if(es->hloc32W)
1721 {
1722 if(es->hloc32A)
1723 {
1724 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1725 textA = LocalLock(es->hloc32A);
1726 countA = strlen(textA) + 1;
1727 }
1728 else if(es->hloc16)
1729 {
1730 HANDLE16 oldDS = stack16->ds;
1731 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1732 stack16->ds = hInstance;
1733 textA = MapSL(LocalLock16(es->hloc16));
1734 stack16->ds = oldDS;
1735 countA = strlen(textA) + 1;
1736 _16bit = TRUE;
1737 }
1738 }
1739 else {
1740 ERR("no buffer ... please report\n");
1741 return;
1742 }
1743
1744 if(textA)
1745 {
1746 HLOCAL hloc32W_new;
1747 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1748 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1749 if(countW_new > es->buffer_size + 1)
1750 {
1751 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1752 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1753 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1754 if(hloc32W_new)
1755 {
1756 es->hloc32W = hloc32W_new;
1757 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1758 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1759 }
1760 else
1761 WARN("FAILED! Will synchronize partially\n");
1762 }
1763 }
1764
1765 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1766 es->text = LocalLock(es->hloc32W);
1767
1768 if(textA)
1769 {
1770 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1771 if(_16bit)
1772 {
1773 HANDLE16 oldDS = stack16->ds;
1774 stack16->ds = hInstance;
1775 LocalUnlock16(es->hloc16);
1776 stack16->ds = oldDS;
1777 }
1778 else
1779 LocalUnlock(es->hloc32A);
1780 }
1781 }
1782 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1783 es->lock_count++;
1784 }
1785
1786
1787 /*********************************************************************
1788 *
1789 * EDIT_SL_InvalidateText
1790 *
1791 * Called from EDIT_InvalidateText().
1792 * Does the job for single-line controls only.
1793 *
1794 */
1795 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1796 {
1797 RECT line_rect;
1798 RECT rc;
1799
1800 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1801 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1802 EDIT_UpdateText(es, &rc, TRUE);
1803 }
1804
1805
1806 /*********************************************************************
1807 *
1808 * EDIT_ML_InvalidateText
1809 *
1810 * Called from EDIT_InvalidateText().
1811 * Does the job for multi-line controls only.
1812 *
1813 */
1814 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1815 {
1816 INT vlc = get_vertical_line_count(es);
1817 INT sl = EDIT_EM_LineFromChar(es, start);
1818 INT el = EDIT_EM_LineFromChar(es, end);
1819 INT sc;
1820 INT ec;
1821 RECT rc1;
1822 RECT rcWnd;
1823 RECT rcLine;
1824 RECT rcUpdate;
1825 INT l;
1826
1827 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1828 return;
1829
1830 sc = start - EDIT_EM_LineIndex(es, sl);
1831 ec = end - EDIT_EM_LineIndex(es, el);
1832 if (sl < es->y_offset) {
1833 sl = es->y_offset;
1834 sc = 0;
1835 }
1836 if (el > es->y_offset + vlc) {
1837 el = es->y_offset + vlc;
1838 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1839 }
1840 GetClientRect(es->hwndSelf, &rc1);
1841 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1842 if (sl == el) {
1843 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1844 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1845 EDIT_UpdateText(es, &rcUpdate, TRUE);
1846 } else {
1847 EDIT_GetLineRect(es, sl, sc,
1848 EDIT_EM_LineLength(es,
1849 EDIT_EM_LineIndex(es, sl)),
1850 &rcLine);
1851 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1852 EDIT_UpdateText(es, &rcUpdate, TRUE);
1853 for (l = sl + 1 ; l < el ; l++) {
1854 EDIT_GetLineRect(es, l, 0,
1855 EDIT_EM_LineLength(es,
1856 EDIT_EM_LineIndex(es, l)),
1857 &rcLine);
1858 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1859 EDIT_UpdateText(es, &rcUpdate, TRUE);
1860 }
1861 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1862 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1863 EDIT_UpdateText(es, &rcUpdate, TRUE);
1864 }
1865 }
1866
1867
1868 /*********************************************************************
1869 *
1870 * EDIT_InvalidateText
1871 *
1872 * Invalidate the text from offset start up to, but not including,
1873 * offset end. Useful for (re)painting the selection.
1874 * Regions outside the linewidth are not invalidated.
1875 * end == -1 means end == TextLength.
1876 * start and end need not be ordered.
1877 *
1878 */
1879 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1880 {
1881 if (end == start)
1882 return;
1883
1884 if (end == -1)
1885 end = get_text_length(es);
1886
1887 if (end < start) {
1888 INT tmp = start;
1889 start = end;
1890 end = tmp;
1891 }
1892
1893 if (es->style & ES_MULTILINE)
1894 EDIT_ML_InvalidateText(es, start, end);
1895 else
1896 EDIT_SL_InvalidateText(es, start, end);
1897 }
1898
1899
1900 /*********************************************************************
1901 *
1902 * EDIT_MakeFit
1903 *
1904 * Try to fit size + 1 characters in the buffer.
1905 */
1906 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1907 {
1908 HLOCAL hNew32W;
1909
1910 if (size <= es->buffer_size)
1911 return TRUE;
1912
1913 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1914
1915 /* Force edit to unlock it's buffer. es->text now NULL */
1916 EDIT_UnlockBuffer(es, TRUE);
1917
1918 if (es->hloc32W) {
1919 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1920 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1921 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1922 es->hloc32W = hNew32W;
1923 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1924 }
1925 }
1926
1927 EDIT_LockBuffer(es);
1928
1929 if (es->buffer_size < size) {
1930 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1931 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1932 return FALSE;
1933 } else {
1934 TRACE("We now have %d+1\n", es->buffer_size);
1935 return TRUE;
1936 }
1937 }
1938
1939
1940 /*********************************************************************
1941 *
1942 * EDIT_MakeUndoFit
1943 *
1944 * Try to fit size + 1 bytes in the undo buffer.
1945 *
1946 */
1947 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1948 {
1949 UINT alloc_size;
1950
1951 if (size <= es->undo_buffer_size)
1952 return TRUE;
1953
1954 TRACE("trying to ReAlloc to %d+1\n", size);
1955
1956 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1957 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1958 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1959 return TRUE;
1960 }
1961 else
1962 {
1963 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1964 return FALSE;
1965 }
1966 }
1967
1968
1969 /*********************************************************************
1970 *
1971 * EDIT_MoveBackward
1972 *
1973 */
1974 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1975 {
1976 INT e = es->selection_end;
1977
1978 if (e) {
1979 e--;
1980 if ((es->style & ES_MULTILINE) && e &&
1981 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1982 e--;
1983 if (e && (es->text[e - 1] == '\r'))
1984 e--;
1985 }
1986 }
1987 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1988 EDIT_EM_ScrollCaret(es);
1989 }
1990
1991
1992 /*********************************************************************
1993 *
1994 * EDIT_MoveDown_ML
1995 *
1996 * Only for multi line controls
1997 * Move the caret one line down, on a column with the nearest
1998 * x coordinate on the screen (might be a different column).
1999 *
2000 */
2001 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
2002 {
2003 INT s = es->selection_start;
2004 INT e = es->selection_end;
2005 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2006 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2007 INT x = (short)LOWORD(pos);
2008 INT y = (short)HIWORD(pos);
2009
2010 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
2011 if (!extend)
2012 s = e;
2013 EDIT_EM_SetSel(es, s, e, after_wrap);
2014 EDIT_EM_ScrollCaret(es);
2015 }
2016
2017
2018 /*********************************************************************
2019 *
2020 * EDIT_MoveEnd
2021 *
2022 */
2023 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
2024 {
2025 BOOL after_wrap = FALSE;
2026 INT e;
2027
2028 /* Pass a high value in x to make sure of receiving the end of the line */
2029 if (!ctrl && (es->style & ES_MULTILINE))
2030 e = EDIT_CharFromPos(es, 0x3fffffff,
2031 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2032 else
2033 e = get_text_length(es);
2034 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2035 EDIT_EM_ScrollCaret(es);
2036 }
2037
2038
2039 /*********************************************************************
2040 *
2041 * EDIT_MoveForward
2042 *
2043 */
2044 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2045 {
2046 INT e = es->selection_end;
2047
2048 if (es->text[e]) {
2049 e++;
2050 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2051 if (es->text[e] == '\n')
2052 e++;
2053 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2054 e += 2;
2055 }
2056 }
2057 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2058 EDIT_EM_ScrollCaret(es);
2059 }
2060
2061
2062 /*********************************************************************
2063 *
2064 * EDIT_MoveHome
2065 *
2066 * Home key: move to beginning of line.
2067 *
2068 */
2069 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
2070 {
2071 INT e;
2072
2073 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2074 if (!ctrl && (es->style & ES_MULTILINE))
2075 e = EDIT_CharFromPos(es, -es->x_offset,
2076 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2077 else
2078 e = 0;
2079 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2080 EDIT_EM_ScrollCaret(es);
2081 }
2082
2083
2084 /*********************************************************************
2085 *
2086 * EDIT_MovePageDown_ML
2087 *
2088 * Only for multi line controls
2089 * Move the caret one page down, on a column with the nearest
2090 * x coordinate on the screen (might be a different column).
2091 *
2092 */
2093 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2094 {
2095 INT s = es->selection_start;
2096 INT e = es->selection_end;
2097 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2098 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2099 INT x = (short)LOWORD(pos);
2100 INT y = (short)HIWORD(pos);
2101
2102 e = EDIT_CharFromPos(es, x,
2103 y + (es->format_rect.bottom - es->format_rect.top),
2104 &after_wrap);
2105 if (!extend)
2106 s = e;
2107 EDIT_EM_SetSel(es, s, e, after_wrap);
2108 EDIT_EM_ScrollCaret(es);
2109 }
2110
2111
2112 /*********************************************************************
2113 *
2114 * EDIT_MovePageUp_ML
2115 *
2116 * Only for multi line controls
2117 * Move the caret one page up, on a column with the nearest
2118 * x coordinate on the screen (might be a different column).
2119 *
2120 */
2121 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2122 {
2123 INT s = es->selection_start;
2124 INT e = es->selection_end;
2125 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2126 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2127 INT x = (short)LOWORD(pos);
2128 INT y = (short)HIWORD(pos);
2129
2130 e = EDIT_CharFromPos(es, x,
2131 y - (es->format_rect.bottom - es->format_rect.top),
2132 &after_wrap);
2133 if (!extend)
2134 s = e;
2135 EDIT_EM_SetSel(es, s, e, after_wrap);
2136 EDIT_EM_ScrollCaret(es);
2137 }
2138
2139
2140 /*********************************************************************
2141 *
2142 * EDIT_MoveUp_ML
2143 *
2144 * Only for multi line controls
2145 * Move the caret one line up, on a column with the nearest
2146 * x coordinate on the screen (might be a different column).
2147 *
2148 */
2149 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2150 {
2151 INT s = es->selection_start;
2152 INT e = es->selection_end;
2153 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2154 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2155 INT x = (short)LOWORD(pos);
2156 INT y = (short)HIWORD(pos);
2157
2158 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2159 if (!extend)
2160 s = e;
2161 EDIT_EM_SetSel(es, s, e, after_wrap);
2162 EDIT_EM_ScrollCaret(es);
2163 }
2164
2165
2166 /*********************************************************************
2167 *
2168 * EDIT_MoveWordBackward
2169 *
2170 */
2171 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2172 {
2173 INT s = es->selection_start;
2174 INT e = es->selection_end;
2175 INT l;
2176 INT ll;
2177 INT li;
2178
2179 l = EDIT_EM_LineFromChar(es, e);
2180 ll = EDIT_EM_LineLength(es, e);
2181 li = EDIT_EM_LineIndex(es, l);
2182 if (e - li == 0) {
2183 if (l) {
2184 li = EDIT_EM_LineIndex(es, l - 1);
2185 e = li + EDIT_EM_LineLength(es, li);
2186 }
2187 } else {
2188 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2189 }
2190 if (!extend)
2191 s = e;
2192 EDIT_EM_SetSel(es, s, e, FALSE);
2193 EDIT_EM_ScrollCaret(es);
2194 }
2195
2196
2197 /*********************************************************************
2198 *
2199 * EDIT_MoveWordForward
2200 *
2201 */
2202 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2203 {
2204 INT s = es->selection_start;
2205 INT e = es->selection_end;
2206 INT l;
2207 INT ll;
2208 INT li;
2209
2210 l = EDIT_EM_LineFromChar(es, e);
2211 ll = EDIT_EM_LineLength(es, e);
2212 li = EDIT_EM_LineIndex(es, l);
2213 if (e - li == ll) {
2214 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2215 e = EDIT_EM_LineIndex(es, l + 1);
2216 } else {
2217 e = li + EDIT_CallWordBreakProc(es,
2218 li, e - li + 1, ll, WB_RIGHT);
2219 }
2220 if (!extend)
2221 s = e;
2222 EDIT_EM_SetSel(es, s, e, FALSE);
2223 EDIT_EM_ScrollCaret(es);
2224 }
2225
2226
2227 /*********************************************************************
2228 *
2229 * EDIT_PaintLine
2230 *
2231 */
2232 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2233 {
2234 INT s = es->selection_start;
2235 INT e = es->selection_end;
2236 INT li;
2237 INT ll;
2238 INT x;
2239 INT y;
2240 LRESULT pos;
2241
2242 if (es->style & ES_MULTILINE) {
2243 INT vlc = get_vertical_line_count(es);
2244
2245 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2246 return;
2247 } else if (line)
2248 return;
2249
2250 TRACE("line=%d\n", line);
2251
2252 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2253 x = (short)LOWORD(pos);
2254 y = (short)HIWORD(pos);
2255 li = EDIT_EM_LineIndex(es, line);
2256 ll = EDIT_EM_LineLength(es, li);
2257 s = min(es->selection_start, es->selection_end);
2258 e = max(es->selection_start, es->selection_end);
2259 s = min(li + ll, max(li, s));
2260 e = min(li + ll, max(li, e));
2261 if (rev && (s != e) &&
2262 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2263 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2264 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2265 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2266 } else
2267 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2268 }
2269
2270
2271 /*********************************************************************
2272 *
2273 * EDIT_PaintText
2274 *
2275 */
2276 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2277 {
2278 COLORREF BkColor;
2279 COLORREF TextColor;
2280 LOGFONTW underline_font;
2281 HFONT hUnderline = 0;
2282 HFONT old_font = 0;
2283 INT ret;
2284 INT li;
2285 INT BkMode;
2286 SIZE size;
2287
2288 if (!count)
2289 return 0;
2290 BkMode = GetBkMode(dc);
2291 BkColor = GetBkColor(dc);
2292 TextColor = GetTextColor(dc);
2293 if (rev) {
2294 if (es->composition_len == 0)
2295 {
2296 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2297 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2298 SetBkMode( dc, OPAQUE);
2299 }
2300 else
2301 {
2302 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2303 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2304 underline_font.lfUnderline = TRUE;
2305 hUnderline = CreateFontIndirectW(&underline_font);
2306 old_font = SelectObject(dc,hUnderline);
2307 }
2308 }
2309 li = EDIT_EM_LineIndex(es, line);
2310 if (es->style & ES_MULTILINE) {
2311 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2312 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2313 } else {
2314 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2315 TextOutW(dc, x, y, text + li + col, count);
2316 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2317 ret = size.cx;
2318 if (es->style & ES_PASSWORD)
2319 HeapFree(GetProcessHeap(), 0, text);
2320 }
2321 if (rev) {
2322 if (es->composition_len == 0)
2323 {
2324 SetBkColor(dc, BkColor);
2325 SetTextColor(dc, TextColor);
2326 SetBkMode( dc, BkMode);
2327 }
2328 else
2329 {
2330 if (old_font)
2331 SelectObject(dc,old_font);
2332 if (hUnderline)
2333 DeleteObject(hUnderline);
2334 }
2335 }
2336 return ret;
2337 }
2338
2339
2340 /*********************************************************************
2341 *
2342 * EDIT_SetCaretPos
2343 *
2344 */
2345 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2346 BOOL after_wrap)
2347 {
2348 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2349 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2350 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2351 }
2352
2353
2354 /*********************************************************************
2355 *
2356 * EDIT_AdjustFormatRect
2357 *
2358 * Adjusts the format rectangle for the current font and the
2359 * current client rectangle.
2360 *
2361 */
2362 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2363 {
2364 RECT ClientRect;
2365
2366 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2367 if (es->style & ES_MULTILINE)
2368 {
2369 INT fw, vlc, max_x_offset, max_y_offset;
2370
2371 vlc = get_vertical_line_count(es);
2372 es->format_rect.bottom = es->format_rect.top + vlc * es->line_height;
2373
2374 /* correct es->x_offset */
2375 fw = es->format_rect.right - es->format_rect.left;
2376 max_x_offset = es->text_width - fw;
2377 if(max_x_offset < 0) max_x_offset = 0;
2378 if(es->x_offset > max_x_offset)
2379 es->x_offset = max_x_offset;
2380
2381 /* correct es->y_offset */
2382 max_y_offset = es->line_count - vlc;
2383 if(max_y_offset < 0) max_y_offset = 0;
2384 if(es->y_offset > max_y_offset)
2385 es->y_offset = max_y_offset;
2386
2387 /* force scroll info update */
2388 EDIT_UpdateScrollInfo(es);
2389 }
2390 else
2391 /* Windows doesn't care to fix text placement for SL controls */
2392 es->format_rect.bottom = es->format_rect.top + es->line_height;
2393
2394 /* Always stay within the client area */
2395 GetClientRect(es->hwndSelf, &ClientRect);
2396 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2397
2398 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2399 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2400
2401 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2402 }
2403
2404
2405 /*********************************************************************
2406 *
2407 * EDIT_SetRectNP
2408 *
2409 * note: this is not (exactly) the handler called on EM_SETRECTNP
2410 * it is also used to set the rect of a single line control
2411 *
2412 */
2413 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2414 {
2415 LONG_PTR ExStyle;
2416 INT bw, bh;
2417 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2418
2419 CopyRect(&es->format_rect, rc);
2420
2421 if (ExStyle & WS_EX_CLIENTEDGE) {
2422 es->format_rect.left++;
2423 es->format_rect.right--;
2424
2425 if (es->format_rect.bottom - es->format_rect.top
2426 >= es->line_height + 2)
2427 {
2428 es->format_rect.top++;
2429 es->format_rect.bottom--;
2430 }
2431 }
2432 else if (es->style & WS_BORDER) {
2433 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2434 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2435 es->format_rect.left += bw;
2436 es->format_rect.right -= bw;
2437 if (es->format_rect.bottom - es->format_rect.top
2438 >= es->line_height + 2 * bh)
2439 {
2440 es->format_rect.top += bh;
2441 es->format_rect.bottom -= bh;
2442 }
2443 }
2444
2445 es->format_rect.left += es->left_margin;
2446 es->format_rect.right -= es->right_margin;
2447 EDIT_AdjustFormatRect(es);
2448 }
2449
2450
2451 /*********************************************************************
2452 *
2453 * EDIT_UnlockBuffer
2454 *
2455 */
2456 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2457 {
2458
2459 /* Edit window might be already destroyed */
2460 if(!IsWindow(es->hwndSelf))
2461 {
2462 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2463 return;
2464 }
2465
2466 if (!es->lock_count) {
2467 ERR("lock_count == 0 ... please report\n");
2468 return;
2469 }
2470 if (!es->text) {
2471 ERR("es->text == 0 ... please report\n");
2472 return;
2473 }
2474
2475 if (force || (es->lock_count == 1)) {
2476 if (es->hloc32W) {
2477 CHAR *textA = NULL;
2478 UINT countA = 0;
2479 UINT countW = get_text_length(es) + 1;
2480 STACK16FRAME* stack16 = NULL;
2481 HANDLE16 oldDS = 0;
2482
2483 if(es->hloc32A)
2484 {
2485 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2486 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2487 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2488 countA = LocalSize(es->hloc32A);
2489 if(countA_new > countA)
2490 {
2491 HLOCAL hloc32A_new;
2492 UINT alloc_size = ROUND_TO_GROW(countA_new);
2493 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2494 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2495 if(hloc32A_new)
2496 {
2497 es->hloc32A = hloc32A_new;
2498 countA = LocalSize(hloc32A_new);
2499 TRACE("Real new size %d bytes\n", countA);
2500 }
2501 else
2502 WARN("FAILED! Will synchronize partially\n");
2503 }
2504 textA = LocalLock(es->hloc32A);
2505 }
2506 else if(es->hloc16)
2507 {
2508 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2509
2510 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2511 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2512
2513 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2514 oldDS = stack16->ds;
2515 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2516
2517 countA = LocalSize16(es->hloc16);
2518 if(countA_new > countA)
2519 {
2520 HLOCAL16 hloc16_new;
2521 UINT alloc_size = ROUND_TO_GROW(countA_new);
2522 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2523 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2524 if(hloc16_new)
2525 {
2526 es->hloc16 = hloc16_new;
2527 countA = LocalSize16(hloc16_new);
2528 TRACE("Real new size %d bytes\n", countA);
2529 }
2530 else
2531 WARN("FAILED! Will synchronize partially\n");
2532 }
2533 textA = MapSL(LocalLock16(es->hloc16));
2534 }
2535
2536 if(textA)
2537 {
2538 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2539 if(stack16)
2540 LocalUnlock16(es->hloc16);
2541 else
2542 LocalUnlock(es->hloc32A);
2543 }
2544
2545 if (stack16) stack16->ds = oldDS;
2546 LocalUnlock(es->hloc32W);
2547 es->text = NULL;
2548 }
2549 else {
2550 ERR("no buffer ... please report\n");
2551 return;
2552 }
2553 }
2554 es->lock_count--;
2555 }
2556
2557
2558 /*********************************************************************
2559 *
2560 * EDIT_UpdateScrollInfo
2561 *
2562 */
2563 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2564 {
2565 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2566 {
2567 SCROLLINFO si;
2568 si.cbSize = sizeof(SCROLLINFO);
2569 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2570 si.nMin = 0;
2571 si.nMax = es->line_count - 1;
2572 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2573 si.nPos = es->y_offset;
2574 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2575 si.nMin, si.nMax, si.nPage, si.nPos);
2576 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2577 }
2578
2579 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2580 {
2581 SCROLLINFO si;
2582 si.cbSize = sizeof(SCROLLINFO);
2583 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2584 si.nMin = 0;
2585 si.nMax = es->text_width - 1;
2586 si.nPage = es->format_rect.right - es->format_rect.left;
2587 si.nPos = es->x_offset;
2588 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2589 si.nMin, si.nMax, si.nPage, si.nPos);
2590 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2591 }
2592 }
2593
2594 /*********************************************************************
2595 *
2596 * EDIT_WordBreakProc
2597 *
2598 * Find the beginning of words.
2599 * Note: unlike the specs for a WordBreakProc, this function only
2600 * allows to be called without linebreaks between s[0] up to
2601 * s[count - 1]. Remember it is only called
2602 * internally, so we can decide this for ourselves.
2603 *
2604 */
2605 static INT EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2606 {
2607 INT ret = 0;
2608
2609 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2610
2611 if(!s) return 0;
2612
2613 switch (action) {
2614 case WB_LEFT:
2615 if (!count)
2616 break;
2617 if (index)
2618 index--;
2619 if (s[index] == ' ') {
2620 while (index && (s[index] == ' '))
2621 index--;
2622 if (index) {
2623 while (index && (s[index] != ' '))
2624 index--;
2625 if (s[index] == ' ')
2626 index++;
2627 }
2628 } else {
2629 while (index && (s[index] != ' '))
2630 index--;
2631 if (s[index] == ' ')
2632 index++;
2633 }
2634 ret = index;
2635 break;
2636 case WB_RIGHT:
2637 if (!count)
2638 break;
2639 if (index)
2640 index--;
2641 if (s[index] == ' ')
2642 while ((index < count) && (s[index] == ' ')) index++;
2643 else {
2644 while (s[index] && (s[index] != ' ') && (index < count))
2645 index++;
2646 while ((s[index] == ' ') && (index < count)) index++;
2647 }
2648 ret = index;
2649 break;
2650 case WB_ISDELIMITER:
2651 ret = (s[index] == ' ');
2652 break;
2653 default:
2654 ERR("unknown action code, please report !\n");
2655 break;
2656 }
2657 return ret;
2658 }
2659
2660
2661 /*********************************************************************
2662 *
2663 * EM_CHARFROMPOS
2664 *
2665 * returns line number (not index) in high-order word of result.
2666 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2667 * to Richedit, not to the edit control. Original documentation is valid.
2668 * FIXME: do the specs mean to return -1 if outside client area or
2669 * if outside formatting rectangle ???
2670 *
2671 */
2672 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2673 {
2674 POINT pt;
2675 RECT rc;
2676 INT index;
2677
2678 pt.x = x;
2679 pt.y = y;
2680 GetClientRect(es->hwndSelf, &rc);
2681 if (!PtInRect(&rc, pt))
2682 return -1;
2683
2684 index = EDIT_CharFromPos(es, x, y, NULL);
2685 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2686 }
2687
2688
2689 /*********************************************************************
2690 *
2691 * EM_FMTLINES
2692 *
2693 * Enable or disable soft breaks.
2694 *
2695 * This means: insert or remove the soft linebreak character (\r\r\n).
2696 * Take care to check if the text still fits the buffer after insertion.
2697 * If not, notify with EN_ERRSPACE.
2698 *
2699 */
2700 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2701 {
2702 es->flags &= ~EF_USE_SOFTBRK;
2703 if (add_eol) {
2704 es->flags |= EF_USE_SOFTBRK;
2705 FIXME("soft break enabled, not implemented\n");
2706 }
2707 return add_eol;
2708 }
2709
2710
2711 /*********************************************************************
2712 *
2713 * EM_GETHANDLE
2714 *
2715 * Hopefully this won't fire back at us.
2716 * We always start with a fixed buffer in the local heap.
2717 * Despite of the documentation says that the local heap is used
2718 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2719 * buffer on the local heap.
2720 *
2721 */
2722 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2723 {
2724 HLOCAL hLocal;
2725
2726 if (!(es->style & ES_MULTILINE))
2727 return 0;
2728
2729 if(es->is_unicode)
2730 hLocal = es->hloc32W;
2731 else
2732 {
2733 if(!es->hloc32A)
2734 {
2735 CHAR *textA;
2736 UINT countA, alloc_size;
2737 TRACE("Allocating 32-bit ANSI alias buffer\n");
2738 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2739 alloc_size = ROUND_TO_GROW(countA);
2740 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2741 {
2742 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2743 return 0;
2744 }
2745 textA = LocalLock(es->hloc32A);
2746 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2747 LocalUnlock(es->hloc32A);
2748 }
2749 hLocal = es->hloc32A;
2750 }
2751
2752 es->flags |= EF_APP_HAS_HANDLE;
2753 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2754 return hLocal;
2755 }
2756
2757
2758 /*********************************************************************
2759 *
2760 * EM_GETHANDLE16
2761 *
2762 * Hopefully this won't fire back at us.
2763 * We always start with a buffer in 32 bit linear memory.
2764 * However, with this message a 16 bit application requests
2765 * a handle of 16 bit local heap memory, where it expects to find
2766 * the text.
2767 * It's a pitty that from this moment on we have to use this
2768 * local heap, because applications may rely on the handle
2769 * in the future.
2770 *
2771 * In this function we'll try to switch to local heap.
2772 */
2773 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2774 {
2775 CHAR *textA;
2776 UINT countA, alloc_size;
2777 STACK16FRAME* stack16;
2778 HANDLE16 oldDS;
2779
2780 if (!(es->style & ES_MULTILINE))
2781 return 0;
2782
2783 if (es->hloc16)
2784 return es->hloc16;
2785
2786 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2787 oldDS = stack16->ds;
2788 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2789
2790 if (!LocalHeapSize16()) {
2791
2792 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2793 ERR("could not initialize local heap\n");
2794 goto done;
2795 }
2796 TRACE("local heap initialized\n");
2797 }
2798
2799 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2800 alloc_size = ROUND_TO_GROW(countA);
2801
2802 TRACE("Allocating 16-bit ANSI alias buffer\n");
2803 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2804 ERR("could not allocate new 16 bit buffer\n");
2805 goto done;
2806 }
2807
2808 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2809 ERR("could not lock new 16 bit buffer\n");
2810 LocalFree16(es->hloc16);
2811 es->hloc16 = 0;
2812 goto done;
2813 }
2814
2815 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2816 LocalUnlock16(es->hloc16);
2817 es->flags |= EF_APP_HAS_HANDLE;
2818
2819 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2820
2821 done:
2822 stack16->ds = oldDS;
2823 return es->hloc16;
2824 }
2825
2826
2827 /*********************************************************************
2828 *
2829 * EM_GETLINE
2830 *
2831 */
2832 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2833 {
2834 LPWSTR src;
2835 INT line_len, dst_len;
2836 INT i;
2837
2838 if (es->style & ES_MULTILINE) {
2839 if (line >= es->line_count)
2840 return 0;
2841 } else
2842 line = 0;
2843 i = EDIT_EM_LineIndex(es, line);
2844 src = es->text + i;
2845 line_len = EDIT_EM_LineLength(es, i);
2846 dst_len = *(WORD *)dst;
2847 if(unicode)
2848 {
2849 if(dst_len <= line_len)
2850 {
2851 memcpy(dst, src, dst_len * sizeof(WCHAR));
2852 return dst_len;
2853 }
2854 else /* Append 0 if enough space */
2855 {
2856 memcpy(dst, src, line_len * sizeof(WCHAR));
2857 dst[line_len] = 0;
2858 return line_len;
2859 }
2860 }
2861 else
2862 {
2863 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2864 if(!ret && line_len) /* Insufficient buffer size */
2865 return dst_len;
2866 if(ret < dst_len) /* Append 0 if enough space */
2867 ((LPSTR)dst)[ret] = 0;
2868 return ret;
2869 }
2870 }
2871
2872
2873 /*********************************************************************
2874 *
2875 * EM_GETSEL
2876 *
2877 */
2878 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2879 {
2880 UINT s = es->selection_start;
2881 UINT e = es->selection_end;
2882
2883 ORDER_UINT(s, e);
2884 if (start)
2885 *start = s;
2886 if (end)
2887 *end = e;
2888 return MAKELONG(s, e);
2889 }
2890
2891
2892 /*********************************************************************
2893 *
2894 * EM_GETTHUMB
2895 *
2896 * FIXME: is this right ? (or should it be only VSCROLL)
2897 * (and maybe only for edit controls that really have their
2898 * own scrollbars) (and maybe only for multiline controls ?)
2899 * All in all: very poorly documented
2900 *
2901 */
2902 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2903 {
2904 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2905 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2906 }
2907
2908
2909 /*********************************************************************
2910 *
2911 * EM_LINEFROMCHAR
2912 *
2913 */
2914 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2915 {
2916 INT line;
2917 LINEDEF *line_def;
2918
2919 if (!(es->style & ES_MULTILINE))
2920 return 0;
2921 if (index > (INT)get_text_length(es))
2922 return es->line_count - 1;
2923 if (index == -1)
2924 index = min(es->selection_start, es->selection_end);
2925
2926 line = 0;
2927 line_def = es->first_line_def;
2928 index -= line_def->length;
2929 while ((index >= 0) && line_def->next) {
2930 line++;
2931 line_def = line_def->next;
2932 index -= line_def->length;
2933 }
2934 return line;
2935 }
2936
2937
2938 /*********************************************************************
2939 *
2940 * EM_LINEINDEX
2941 *
2942 */
2943 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
2944 {
2945 INT line_index;
2946 const LINEDEF *line_def;
2947
2948 if (!(es->style & ES_MULTILINE))
2949 return 0;
2950 if (line >= es->line_count)
2951 return -1;
2952
2953 line_index = 0;
2954 line_def = es->first_line_def;
2955 if (line == -1) {
2956 INT index = es->selection_end - line_def->length;
2957 while ((index >= 0) && line_def->next) {
2958 line_index += line_def->length;
2959 line_def = line_def->next;
2960 index -= line_def->length;
2961 }
2962 } else {
2963 while (line > 0) {
2964 line_index += line_def->length;
2965 line_def = line_def->next;
2966 line--;
2967 }
2968 }
2969 return line_index;
2970 }
2971
2972
2973 /*********************************************************************
2974 *
2975 * EM_LINELENGTH
2976 *
2977 */
2978 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2979 {
2980 LINEDEF *line_def;
2981
2982 if (!(es->style & ES_MULTILINE))
2983 return get_text_length(es);
2984
2985 if (index == -1) {
2986 /* get the number of remaining non-selected chars of selected lines */
2987 INT32 l; /* line number */
2988 INT32 li; /* index of first char in line */
2989 INT32 count;
2990 l = EDIT_EM_LineFromChar(es, es->selection_start);
2991 /* # chars before start of selection area */
2992 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2993 l = EDIT_EM_LineFromChar(es, es->selection_end);
2994 /* # chars after end of selection */
2995 li = EDIT_EM_LineIndex(es, l);
2996 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2997 return count;
2998 }
2999 line_def = es->first_line_def;
3000 index -= line_def->length;
3001 while ((index >= 0) && line_def->next) {
3002 line_def = line_def->next;
3003 index -= line_def->length;
3004 }
3005 return line_def->net_length;
3006 }
3007
3008
3009 /*********************************************************************
3010 *
3011 * EM_LINESCROLL
3012 *
3013 * NOTE: dx is in average character widths, dy - in lines;
3014 *
3015 */
3016 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
3017 {
3018 if (!(es->style & ES_MULTILINE))
3019 return FALSE;
3020
3021 dx *= es->char_width;
3022 return EDIT_EM_LineScroll_internal(es, dx, dy);
3023 }
3024
3025 /*********************************************************************
3026 *
3027 * EDIT_EM_LineScroll_internal
3028 *
3029 * Version of EDIT_EM_LineScroll for internal use.
3030 * It doesn't refuse if ES_MULTILINE is set and assumes that
3031 * dx is in pixels, dy - in lines.
3032 *
3033 */
3034 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
3035 {
3036 INT nyoff;
3037 INT x_offset_in_pixels;
3038 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3039 es->line_height;
3040
3041 if (es->style & ES_MULTILINE)
3042 {
3043 x_offset_in_pixels = es->x_offset;
3044 }
3045 else
3046 {
3047 dy = 0;
3048 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3049 }
3050
3051 if (-dx > x_offset_in_pixels)
3052 dx = -x_offset_in_pixels;
3053 if (dx > es->text_width - x_offset_in_pixels)
3054 dx = es->text_width - x_offset_in_pixels;
3055 nyoff = max(0, es->y_offset + dy);
3056 if (nyoff >= es->line_count - lines_per_page)
3057 nyoff = max(0, es->line_count - lines_per_page);
3058 dy = (es->y_offset - nyoff) * es->line_height;
3059 if (dx || dy) {
3060 RECT rc1;
3061 RECT rc;
3062
3063 es->y_offset = nyoff;
3064 if(es->style & ES_MULTILINE)
3065 es->x_offset += dx;
3066 else
3067 es->x_offset += dx / es->char_width;
3068
3069 GetClientRect(es->hwndSelf, &rc1);
3070 IntersectRect(&rc, &rc1, &es->format_rect);
3071 ScrollWindowEx(es->hwndSelf, -dx, dy,
3072 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3073 /* force scroll info update */
3074 EDIT_UpdateScrollInfo(es);
3075 }
3076 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3077 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3078 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3079 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3080 return TRUE;
3081 }
3082
3083
3084 /*********************************************************************
3085 *
3086 * EM_POSFROMCHAR
3087 *
3088 */
3089 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3090 {
3091 INT len = get_text_length(es);
3092 INT l;
3093 INT li;
3094 INT x;
3095 INT y = 0;
3096 INT w;
3097 INT lw = 0;
3098 INT ll = 0;
3099 HDC dc;
3100 HFONT old_font = 0;
3101 SIZE size;
3102 LINEDEF *line_def;
3103
3104 index = min(index, len);
3105 dc = GetDC(es->hwndSelf);
3106 if (es->font)
3107 old_font = SelectObject(dc, es->font);
3108 if (es->style & ES_MULTILINE) {
3109 l = EDIT_EM_LineFromChar(es, index);
3110 y = (l - es->y_offset) * es->line_height;
3111 li = EDIT_EM_LineIndex(es, l);
3112 if (after_wrap && (li == index) && l) {
3113 INT l2 = l - 1;
3114 line_def = es->first_line_def;
3115 while (l2) {
3116 line_def = line_def->next;
3117 l2--;
3118 }
3119 if (line_def->ending == END_WRAP) {
3120 l--;
3121 y -= es->line_height;
3122 li = EDIT_EM_LineIndex(es, l);
3123 }
3124 }
3125
3126 line_def = es->first_line_def;
3127 while (line_def->index != li)
3128 line_def = line_def->next;
3129
3130 ll = line_def->net_length;
3131 lw = line_def->width;
3132
3133 w = es->format_rect.right - es->format_rect.left;
3134 if (es->style & ES_RIGHT)
3135 {
3136 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3137 es->tabs_count, es->tabs)) - es->x_offset;
3138 x = w - x;
3139 }
3140 else if (es->style & ES_CENTER)
3141 {
3142 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3143 es->tabs_count, es->tabs)) - es->x_offset;
3144 x += (w - lw) / 2;
3145 }
3146 else /* ES_LEFT */
3147 {
3148 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3149 es->tabs_count, es->tabs)) - es->x_offset;
3150 }
3151 } else {
3152 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3153 if (index < es->x_offset) {
3154 GetTextExtentPoint32W(dc, text + index,
3155 es->x_offset - index, &size);
3156 x = -size.cx;
3157 } else {
3158 GetTextExtentPoint32W(dc, text + es->x_offset,
3159 index - es->x_offset, &size);
3160 x = size.cx;
3161
3162 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3163 {
3164 w = es->format_rect.right - es->format_rect.left;
3165 if (w > es->text_width)
3166 {
3167 if (es->style & ES_RIGHT)
3168 x += w - es->text_width;
3169 else if (es->style & ES_CENTER)
3170 x += (w - es->text_width) / 2;
3171 }
3172 }
3173 }
3174 y = 0;
3175 if (es->style & ES_PASSWORD)
3176 HeapFree(GetProcessHeap(), 0, text);
3177 }
3178 x += es->format_rect.left;
3179 y += es->format_rect.top;
3180 if (es->font)
3181 SelectObject(dc, old_font);
3182 ReleaseDC(es->hwndSelf, dc);
3183 return MAKELONG((INT16)x, (INT16)y);
3184 }
3185
3186
3187 /*********************************************************************
3188 *
3189 * EM_REPLACESEL
3190 *
3191 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3192 *
3193 */
3194 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3195 {
3196 UINT strl = strlenW(lpsz_replace);
3197 UINT tl = get_text_length(es);
3198 UINT utl;
3199 UINT s;
3200 UINT e;
3201 UINT i;
3202 UINT size;
3203 LPWSTR p;
3204 HRGN hrgn = 0;
3205 LPWSTR buf = NULL;
3206 UINT bufl = 0;
3207
3208 TRACE("%s, can_undo %d, send_update %d\n",
3209 debugstr_w(lpsz_replace), can_undo, send_update);
3210
3211 s = es->selection_start;
3212 e = es->selection_end;
3213
3214 if ((s == e) && !strl)
3215 return;
3216
3217 ORDER_UINT(s, e);
3218
3219 size = tl - (e - s) + strl;
3220 if (!size)
3221 es->text_width = 0;
3222
3223 /* Issue the EN_MAXTEXT notification and continue with replacing text
3224 * such that buffer limit is honored. */
3225 if ((honor_limit) && (size > es->buffer_limit)) {
3226 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3227 /* Buffer limit can be smaller than the actual length of text in combobox */
3228 if (es->buffer_limit < (tl - (e-s)))
3229 strl = 0;
3230 else
3231 strl = es->buffer_limit - (tl - (e-s));
3232 }
3233
3234 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3235 return;
3236
3237 if (e != s) {
3238 /* there is something to be deleted */
3239 TRACE("deleting stuff.\n");
3240 bufl = e - s;
3241 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3242 if (!buf) return;
3243 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3244 buf[bufl] = 0; /* ensure 0 termination */
3245 /* now delete */
3246 strcpyW(es->text + s, es->text + e);
3247 text_buffer_changed(es);
3248 }
3249 if (strl) {
3250 /* there is an insertion */
3251 tl = get_text_length(es);
3252 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));
3253 for (p = es->text + tl ; p >= es->text + s ; p--)
3254 p[strl] = p[0];
3255 for (i = 0 , p = es->text + s ; i < strl ; i++)
3256 p[i] = lpsz_replace[i];
3257 if(es->style & ES_UPPERCASE)
3258 CharUpperBuffW(p, strl);
3259 else if(es->style & ES_LOWERCASE)
3260 CharLowerBuffW(p, strl);
3261 text_buffer_changed(es);
3262 }
3263 if (es->style & ES_MULTILINE)
3264 {
3265 INT st = min(es->selection_start, es->selection_end);
3266 INT vlc = get_vertical_line_count(es);
3267
3268 hrgn = CreateRectRgn(0, 0, 0, 0);
3269 EDIT_BuildLineDefs_ML(es, st, st + strl,
3270 strl - abs(es->selection_end - es->selection_start), hrgn);
3271 /* if text is too long undo all changes */
3272 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3273 if (strl)
3274 strcpyW(es->text + e, es->text + e + strl);
3275 if (e != s)
3276 for (i = 0 , p = es->text ; i < e - s ; i++)
3277 p[i + s] = buf[i];
3278 text_buffer_changed(es);
3279 EDIT_BuildLineDefs_ML(es, s, e,
3280 abs(es->selection_end - es->selection_start) - strl, hrgn);
3281 strl = 0;
3282 e = s;
3283 hrgn = CreateRectRgn(0, 0, 0, 0);
3284 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3285 }
3286 }
3287 else {
3288 INT fw = es->format_rect.right - es->format_rect.left;
3289 EDIT_CalcLineWidth_SL(es);
3290 /* remove chars that don't fit */
3291 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3292 while ((es->text_width > fw) && s + strl >= s) {
3293 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3294 strl--;
3295 EDIT_CalcLineWidth_SL(es);
3296 }
3297 text_buffer_changed(es);
3298 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3299 }
3300 }
3301
3302 if (e != s) {
3303 if (can_undo) {
3304 utl = strlenW(es->undo_text);
3305 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3306 /* undo-buffer is extended to the right */
3307 EDIT_MakeUndoFit(es, utl + e - s);
3308 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3309 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3310 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3311 /* undo-buffer is extended to the left */
3312 EDIT_MakeUndoFit(es, utl + e - s);
3313 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3314 p[e - s] = p[0];
3315 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3316 p[i] = buf[i];
3317 es->undo_position = s;
3318 } else {
3319 /* new undo-buffer */
3320 EDIT_MakeUndoFit(es, e - s);
3321 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3322 es->undo_text[e - s] = 0; /* ensure 0 termination */
3323 es->undo_position = s;
3324 }
3325 /* any deletion makes the old insertion-undo invalid */
3326 es->undo_insert_count = 0;
3327 } else
3328 EDIT_EM_EmptyUndoBuffer(es);
3329 }
3330 if (strl) {
3331 if (can_undo) {
3332 if ((s == es->undo_position) ||
3333 ((es->undo_insert_count) &&
3334 (s == es->undo_position + es->undo_insert_count)))
3335 /*
3336 * insertion is new and at delete position or
3337 * an extension to either left or right
3338 */
3339 es->undo_insert_count += strl;
3340 else {
3341 /* new insertion undo */
3342 es->undo_position = s;
3343 es->undo_insert_count = strl;
3344 /* new insertion makes old delete-buffer invalid */
3345 *es->undo_text = '\0';
3346 }
3347 } else
3348 EDIT_EM_EmptyUndoBuffer(es);
3349 }
3350
3351 if (bufl)
3352 HeapFree(GetProcessHeap(), 0, buf);
3353
3354 s += strl;
3355
3356 /* If text has been deleted and we're right or center aligned then scroll rightward */
3357 if (es->style & (ES_RIGHT | ES_CENTER))
3358 {
3359 INT delta = strl - abs(es->selection_end - es->selection_start);
3360
3361 if (delta < 0 && es->x_offset)
3362 {
3363 if (abs(delta) > es->x_offset)
3364 es->x_offset = 0;
3365 else
3366 es->x_offset += delta;
3367 }
3368 }
3369
3370 EDIT_EM_SetSel(es, s, s, FALSE);
3371 es->flags |= EF_MODIFIED;
3372 if (send_update) es->flags |= EF_UPDATE;
3373 if (hrgn)
3374 {
3375 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3376 DeleteObject(hrgn);
3377 }
3378 else
3379 EDIT_UpdateText(es, NULL, TRUE);
3380
3381 EDIT_EM_ScrollCaret(es);
3382
3383 /* force scroll info update */
3384 EDIT_UpdateScrollInfo(es);
3385
3386
3387 if(send_update || (es->flags & EF_UPDATE))
3388 {
3389 es->flags &= ~EF_UPDATE;
3390 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3391 }
3392 }
3393
3394
3395 /*********************************************************************
3396 *
3397 * EM_SCROLL
3398 *
3399 */
3400 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3401 {
3402 INT dy;
3403
3404 if (!(es->style & ES_MULTILINE))
3405 return (LRESULT)FALSE;
3406
3407 dy = 0;
3408
3409 switch (action) {
3410 case SB_LINEUP:
3411 if (es->y_offset)
3412 dy = -1;
3413 break;
3414 case SB_LINEDOWN:
3415 if (es->y_offset < es->line_count - 1)
3416 dy = 1;
3417 break;
3418 case SB_PAGEUP:
3419 if (es->y_offset)
3420 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3421 break;
3422 case SB_PAGEDOWN:
3423 if (es->y_offset < es->line_count - 1)
3424 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3425 break;
3426 default:
3427 return (LRESULT)FALSE;
3428 }
3429 if (dy) {
3430 INT vlc = get_vertical_line_count(es);
3431 /* check if we are going to move too far */
3432 if(es->y_offset + dy > es->line_count - vlc)
3433 dy = es->line_count - vlc - es->y_offset;
3434
3435 /* Notification is done in EDIT_EM_LineScroll */
3436 if(dy)
3437 EDIT_EM_LineScroll(es, 0, dy);
3438 }
3439 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3440 }
3441
3442
3443 /*********************************************************************
3444 *
3445 * EM_SCROLLCARET
3446 *
3447 */
3448 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3449 {
3450 if (es->style & ES_MULTILINE) {
3451 INT l;
3452 INT vlc;
3453 INT ww;
3454 INT cw = es->char_width;
3455 INT x;
3456 INT dy = 0;
3457 INT dx = 0;
3458
3459 l = EDIT_EM_LineFromChar(es, es->selection_end);
3460 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3461 vlc = get_vertical_line_count(es);
3462 if (l >= es->y_offset + vlc)
3463 dy = l - vlc + 1 - es->y_offset;
3464 if (l < es->y_offset)
3465 dy = l - es->y_offset;
3466 ww = es->format_rect.right - es->format_rect.left;
3467 if (x < es->format_rect.left)
3468 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3469 if (x > es->format_rect.right)
3470 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3471 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3472 {
3473 /* check if we are going to move too far */
3474 if(es->x_offset + dx + ww > es->text_width)
3475 dx = es->text_width - ww - es->x_offset;
3476 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3477 EDIT_EM_LineScroll_internal(es, dx, dy);
3478 }
3479 } else {
3480 INT x;
3481 INT goal;
3482 INT format_width;
3483
3484 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3485 format_width = es->format_rect.right - es->format_rect.left;
3486 if (x < es->format_rect.left) {
3487 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3488 do {
3489 es->x_offset--;
3490 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3491 } while ((x < goal) && es->x_offset);
3492 /* FIXME: use ScrollWindow() somehow to improve performance */
3493 EDIT_UpdateText(es, NULL, TRUE);
3494 } else if (x > es->format_rect.right) {
3495 INT x_last;
3496 INT len = get_text_length(es);
3497 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3498 do {
3499 es->x_offset++;
3500 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3501 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3502 } while ((x > goal) && (x_last > es->format_rect.right));
3503 /* FIXME: use ScrollWindow() somehow to improve performance */
3504 EDIT_UpdateText(es, NULL, TRUE);
3505 }
3506 }
3507
3508 if(es->flags & EF_FOCUSED)
3509 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3510 }
3511
3512
3513 /*********************************************************************
3514 *
3515 * EM_SETHANDLE
3516 *
3517 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3518 *
3519 */
3520 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3521 {
3522 if (!(es->style & ES_MULTILINE))
3523 return;
3524
3525 if (!hloc) {
3526 WARN("called with NULL handle\n");
3527 return;
3528 }
3529
3530 EDIT_UnlockBuffer(es, TRUE);
3531
3532 if(es->hloc16)
3533 {
3534 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3535 HANDLE16 oldDS = stack16->ds;
3536
3537 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3538 LocalFree16(es->hloc16);
3539 stack16->ds = oldDS;
3540 es->hloc16 = 0;
3541 }
3542
3543 if(es->is_unicode)
3544 {
3545 if(es->hloc32A)
3546 {
3547 LocalFree(es->hloc32A);
3548 es->hloc32A = NULL;
3549 }
3550 es->hloc32W = hloc;
3551 }
3552 else
3553 {
3554 INT countW, countA;
3555 HLOCAL hloc32W_new;
3556 WCHAR *textW;
3557 CHAR *textA;
3558
3559 countA = LocalSize(hloc);
3560 textA = LocalLock(hloc);
3561 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3562 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3563 {
3564 ERR("Could not allocate new unicode buffer\n");
3565 return;
3566 }
3567 textW = LocalLock(hloc32W_new);
3568 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3569 LocalUnlock(hloc32W_new);
3570 LocalUnlock(hloc);
3571
3572 if(es->hloc32W)
3573 LocalFree(es->hloc32W);
3574
3575 es->hloc32W = hloc32W_new;
3576 es->hloc32A = hloc;
3577 }
3578
3579 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3580
3581 es->flags |= EF_APP_HAS_HANDLE;
3582 EDIT_LockBuffer(es);
3583
3584 es->x_offset = es->y_offset = 0;
3585 es->selection_start = es->selection_end = 0;
3586 EDIT_EM_EmptyUndoBuffer(es);
3587 es->flags &= ~EF_MODIFIED;
3588 es->flags &= ~EF_UPDATE;
3589 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3590 EDIT_UpdateText(es, NULL, TRUE);
3591 EDIT_EM_ScrollCaret(es);
3592 /* force scroll info update */
3593 EDIT_UpdateScrollInfo(es);
3594 }
3595
3596
3597 /*********************************************************************
3598 *
3599 * EM_SETHANDLE16
3600 *
3601 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3602 *
3603 */
3604 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3605 {
3606 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3607 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3608 HANDLE16 oldDS = stack16->ds;
3609 INT countW, countA;
3610 HLOCAL hloc32W_new;
3611 WCHAR *textW;
3612 CHAR *textA;
3613
3614 if (!(es->style & ES_MULTILINE))
3615 return;
3616
3617 if (!hloc) {
3618 WARN("called with NULL handle\n");
3619 return;
3620 }
3621
3622 EDIT_UnlockBuffer(es, TRUE);
3623
3624 if(es->hloc32A)
3625 {
3626 LocalFree(es->hloc32A);
3627 es->hloc32A = NULL;
3628 }
3629
3630 stack16->ds = hInstance;
3631 countA = LocalSize16(hloc);
3632 textA = MapSL(LocalLock16(hloc));
3633 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3634 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3635 {
3636 ERR("Could not allocate new unicode buffer\n");
3637 return;
3638 }
3639 textW = LocalLock(hloc32W_new);
3640 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3641 LocalUnlock(hloc32W_new);
3642 LocalUnlock16(hloc);
3643 stack16->ds = oldDS;
3644
3645 if(es->hloc32W)
3646 LocalFree(es->hloc32W);
3647
3648 es->hloc32W = hloc32W_new;
3649 es->hloc16 = hloc;
3650
3651 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3652
3653 es->flags |= EF_APP_HAS_HANDLE;
3654 EDIT_LockBuffer(es);
3655
3656 es->x_offset = es->y_offset = 0;
3657 es->selection_start = es->selection_end = 0;
3658 EDIT_EM_EmptyUndoBuffer(es);
3659 es->flags &= ~EF_MODIFIED;
3660 es->flags &= ~EF_UPDATE;
3661 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3662 EDIT_UpdateText(es, NULL, TRUE);
3663 EDIT_EM_ScrollCaret(es);
3664 /* force scroll info update */
3665 EDIT_UpdateScrollInfo(es);
3666 }
3667
3668
3669 /*********************************************************************
3670 *
3671 * EM_SETLIMITTEXT
3672 *
3673 * NOTE: this version currently implements WinNT limits
3674 *
3675 */
3676 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
3677 {
3678 if (!limit) limit = ~0u;
3679 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
3680 es->buffer_limit = limit;
3681 }
3682
3683
3684 /*********************************************************************
3685 *
3686 * EM_SETMARGINS
3687 *
3688 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3689 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3690 * margin according to the textmetrics of the current font.
3691 *
3692 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3693 * of the char's width as the margin, but this is not how Windows handles this.
3694 * For all other fonts Windows sets the margins to zero.
3695 *
3696 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3697 * edit control is equal to or larger than a certain size.
3698 * Interestingly if one subtracts both the left and right margins from
3699 * this size one always seems to get an even number. The extents of
3700 * the (four character) string "'**'" match this quite closely, so
3701 * we'll use this until we come up with a better idea.
3702 */
3703 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3704 {
3705 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3706 SIZE sz;
3707
3708 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3709 return sz.cx + left + right;
3710 }
3711
3712 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3713 WORD left, WORD right, BOOL repaint)
3714 {
3715 TEXTMETRICW tm;
3716 INT default_left_margin = 0; /* in pixels */
3717 INT default_right_margin = 0; /* in pixels */
3718
3719 /* Set the default margins depending on the font */
3720 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3721 HDC dc = GetDC(es->hwndSelf);
3722 HFONT old_font = SelectObject(dc, es->font);
3723 GetTextMetricsW(dc, &tm);
3724 /* The default margins are only non zero for TrueType or Vector fonts */
3725 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3726 int min_size;
3727 RECT rc;
3728 /* This must be calculated more exactly! But how? */
3729 default_left_margin = tm.tmAveCharWidth / 2;
3730 default_right_margin = tm.tmAveCharWidth / 2;
3731 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3732 GetClientRect(es->hwndSelf, &rc);
3733 if(rc.right - rc.left < min_size) {
3734 default_left_margin = es->left_margin;
3735 default_right_margin = es->right_margin;
3736 }
3737 }
3738 SelectObject(dc, old_font);
3739 ReleaseDC(es->hwndSelf, dc);
3740 }
3741
3742 if (action & EC_LEFTMARGIN) {
3743 es->format_rect.left -= es->left_margin;
3744 if (left != EC_USEFONTINFO)
3745 es->left_margin = left;
3746 else
3747 es->left_margin = default_left_margin;
3748 es->format_rect.left += es->left_margin;
3749 }
3750
3751 if (action & EC_RIGHTMARGIN) {
3752 es->format_rect.right += es->right_margin;
3753 if (right != EC_USEFONTINFO)
3754 es->right_margin = right;
3755 else
3756 es->right_margin = default_right_margin;
3757 es->format_rect.right -= es->right_margin;
3758 }
3759
3760 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3761 EDIT_AdjustFormatRect(es);
3762 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3763 }
3764
3765 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3766 }
3767
3768
3769 /*********************************************************************
3770 *
3771 * EM_SETPASSWORDCHAR
3772 *
3773 */
3774 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3775 {
3776 LONG style;
3777
3778 if (es->style & ES_MULTILINE)
3779 return;
3780
3781 if (es->password_char == c)
3782 return;
3783
3784 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3785 es->password_char = c;
3786 if (c) {
3787 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3788 es->style |= ES_PASSWORD;
3789 } else {
3790 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3791 es->style &= ~ES_PASSWORD;
3792 }
3793 EDIT_UpdateText(es, NULL, TRUE);
3794 }
3795
3796
3797 /*********************************************************************
3798 *
3799 * EDIT_EM_SetSel
3800 *
3801 * note: unlike the specs say: the order of start and end
3802 * _is_ preserved in Windows. (i.e. start can be > end)
3803 * In other words: this handler is OK
3804 *
3805 */
3806 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3807 {
3808 UINT old_start = es->selection_start;
3809 UINT old_end = es->selection_end;
3810 UINT len = get_text_length(es);
3811
3812 if (start == (UINT)-1) {
3813 start = es->selection_end;
3814 end = es->selection_end;
3815 } else {
3816 start = min(start, len);
3817 end = min(end, len);
3818 }
3819 es->selection_start = start;
3820 es->selection_end = end;
3821 if (after_wrap)
3822 es->flags |= EF_AFTER_WRAP;
3823 else
3824 es->flags &= ~EF_AFTER_WRAP;
3825 /* Compute the necessary invalidation region. */
3826 /* Note that we don't need to invalidate regions which have
3827 * "never" been selected, or those which are "still" selected.
3828 * In fact, every time we hit a selection boundary, we can
3829 * *toggle* whether we need to invalidate. Thus we can optimize by
3830 * *sorting* the interval endpoints. Let's assume that we sort them
3831 * in this order:
3832 * start <= end <= old_start <= old_end
3833 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
3834 * in 5 comparisons; i.e. it is impossible to do better than the
3835 * following: */
3836 ORDER_UINT(end, old_end);
3837 ORDER_UINT(start, old_start);
3838 ORDER_UINT(old_start, old_end);
3839 ORDER_UINT(start, end);
3840 /* Note that at this point 'end' and 'old_start' are not in order, but
3841 * start is definitely the min. and old_end is definitely the max. */
3842 if (end != old_start)
3843 {
3844 /*
3845 * One can also do
3846 * ORDER_UINT32(end, old_start);
3847 * EDIT_InvalidateText(es, start, end);
3848 * EDIT_InvalidateText(es, old_start, old_end);
3849 * in place of the following if statement.
3850 * (That would complete the optimal five-comparison four-element sort.)
3851 */
3852 if (old_start > end )
3853 {
3854 EDIT_InvalidateText(es, start, end);
3855 EDIT_InvalidateText(es, old_start, old_end);
3856 }
3857 else
3858 {
3859 EDIT_InvalidateText(es, start, old_start);
3860 EDIT_InvalidateText(es, end, old_end);
3861 }
3862 }
3863 else EDIT_InvalidateText(es, start, old_end);
3864 }
3865
3866
3867 /*********************************************************************
3868 *
3869 * EM_SETTABSTOPS
3870 *
3871 */
3872 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3873 {
3874 if (!(es->style & ES_MULTILINE))
3875 return FALSE;
3876 HeapFree(GetProcessHeap(), 0, es->tabs);
3877 es->tabs_count = count;
3878 if (!count)
3879 es->tabs = NULL;
3880 else {
3881 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3882 memcpy(es->tabs, tabs, count * sizeof(INT));
3883 }
3884 return TRUE;
3885 }
3886
3887
3888 /*********************************************************************
3889 *
3890 * EM_SETTABSTOPS16
3891 *
3892 */
3893 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs)
3894 {
3895 if (!(es->style & ES_MULTILINE))
3896 return FALSE;
3897 HeapFree(GetProcessHeap(), 0, es->tabs);
3898 es->tabs_count = count;
3899 if (!count)
3900 es->tabs = NULL;
3901 else {
3902 INT i;
3903 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3904 for (i = 0 ; i < count ; i++)
3905 es->tabs[i] = *tabs++;
3906 }
3907 return TRUE;
3908 }
3909
3910
3911 /*********************************************************************
3912 *
3913 * EM_SETWORDBREAKPROC
3914 *
3915 */
3916 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3917 {
3918 if (es->word_break_proc == wbp)
3919 return;
3920
3921 es->word_break_proc = wbp;
3922 es->word_break_proc16 = NULL;
3923
3924 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3925 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3926 EDIT_UpdateText(es, NULL, TRUE);
3927 }
3928 }
3929
3930
3931 /*********************************************************************
3932 *
3933 * EM_SETWORDBREAKPROC16
3934 *
3935 */
3936 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3937 {
3938 if (es->word_break_proc16 == wbp)
3939 return;
3940
3941 es->word_break_proc = NULL;
3942 es->word_break_proc16 = wbp;
3943 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3944 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3945 EDIT_UpdateText(es, NULL, TRUE);
3946 }
3947 }
3948
3949
3950 /*********************************************************************
3951 *
3952 * EM_UNDO / WM_UNDO
3953 *
3954 */
3955 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3956 {
3957 INT ulength;
3958 LPWSTR utext;
3959
3960 /* As per MSDN spec, for a single-line edit control,
3961 the return value is always TRUE */
3962 if( es->style & ES_READONLY )
3963 return !(es->style & ES_MULTILINE);
3964
3965 ulength = strlenW(es->undo_text);
3966
3967 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3968
3969 strcpyW(utext, es->undo_text);
3970
3971 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3972 es->undo_insert_count, debugstr_w(utext));
3973
3974 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3975 EDIT_EM_EmptyUndoBuffer(es);
3976 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3977 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3978 /* send the notification after the selection start and end are set */
3979 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3980 EDIT_EM_ScrollCaret(es);
3981 HeapFree(GetProcessHeap(), 0, utext);
3982
3983 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3984 es->undo_insert_count, debugstr_w(es->undo_text));
3985 return TRUE;
3986 }
3987
3988
3989 /* Helper function for WM_CHAR
3990 *
3991 * According to an MSDN blog article titled "Just because you're a control
3992 * doesn't mean that you're necessarily inside a dialog box," multiline edit
3993 * controls without ES_WANTRETURN would attempt to detect whether it is inside
3994 * a dialog box or not.
3995 */
3996 static BOOL EDIT_IsInsideDialog(EDITSTATE *es)
3997 {
3998 WND *pParent;
3999 BOOL r = FALSE;
4000
4001 if (es->hwndParent)
4002 {
4003 pParent = WIN_GetPtr(es->hwndParent);
4004 if (pParent && pParent != WND_OTHER_PROCESS && pParent != WND_DESKTOP)
4005 {
4006 if (pParent->flags & WIN_ISDIALOG)
4007 r = TRUE;
4008 WIN_ReleasePtr(pParent);
4009 }
4010 }
4011 return r;
4012 }
4013
4014
4015 /*********************************************************************
4016 *
4017 * WM_CHAR
4018 *
4019 */
4020 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
4021 {
4022 BOOL control;
4023
4024 control = GetKeyState(VK_CONTROL) & 0x8000;
4025
4026 switch (c) {
4027 case '\r':
4028 /* If it's not a multiline edit box, it would be ignored below.
4029 * For multiline edit without ES_WANTRETURN, we have to make a
4030 * special case.
4031 */
4032 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
4033 if (EDIT_IsInsideDialog(es))
4034 break;
4035 case '\n':
4036 if (es->style & ES_MULTILINE) {
4037 if (es->style & ES_READONLY) {
4038 EDIT_MoveHome(es, FALSE, FALSE);
4039 EDIT_MoveDown_ML(es, FALSE);
4040 } else {
4041 static const WCHAR cr_lfW[] = {'\r','\n',0};
4042 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
4043 }
4044 }
4045 break;
4046 case '\t':
4047 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
4048 {
4049 static const WCHAR tabW[] = {'\t',0};
4050 if (EDIT_IsInsideDialog(es))
4051 break;
4052 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
4053 }
4054 break;
4055 case VK_BACK:
4056 if (!(es->style & ES_READONLY) && !control) {
4057 if (es->selection_start != es->selection_end)
4058 EDIT_WM_Clear(es);
4059 else {
4060 /* delete character left of caret */
4061 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4062 EDIT_MoveBackward(es, TRUE);
4063 EDIT_WM_Clear(es);
4064 }
4065 }
4066 break;
4067 case 0x03: /* ^C */
4068 if (!(es->style & ES_PASSWORD))
4069 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4070 break;
4071 case 0x16: /* ^V */
4072 if (!(es->style & ES_READONLY))
4073 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4074 break;
4075 case 0x18: /* ^X */
4076 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
4077 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4078 break;
4079 case 0x1A: /* ^Z */
4080 if (!(es->style & ES_READONLY))
4081 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4082 break;
4083
4084 default:
4085 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4086 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4087 break;
4088
4089 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4090 WCHAR str[2];
4091 str[0] = c;
4092 str[1] = '\0';
4093 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4094 }
4095 break;
4096 }
4097 return 1;
4098 }
4099
4100
4101 /*********************************************************************
4102 *
4103 * WM_COMMAND
4104 *
4105 */
4106 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4107 {
4108 if (code || control)
4109 return;
4110
4111 switch (id) {
4112 case EM_UNDO:
4113 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4114 break;
4115 case WM_CUT:
4116 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4117 break;
4118 case WM_COPY:
4119 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4120 break;
4121 case WM_PASTE:
4122 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4123 break;
4124 case WM_CLEAR:
4125 SendMessageW(es->hwndSelf, WM_CLEAR, 0, 0);
4126 break;
4127 case EM_SETSEL:
4128 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4129 EDIT_EM_ScrollCaret(es);
4130 break;
4131 default:
4132 ERR("unknown menu item, please report\n");
4133 break;
4134 }
4135 }
4136
4137
4138 /*********************************************************************
4139 *
4140 * WM_CONTEXTMENU
4141 *
4142 * Note: the resource files resource/sysres_??.rc cannot define a
4143 * single popup menu. Hence we use a (dummy) menubar
4144 * containing the single popup menu as its first item.
4145 *
4146 * FIXME: the message identifiers have been chosen arbitrarily,
4147 * hence we use MF_BYPOSITION.
4148 * We might as well use the "real" values (anybody knows ?)
4149 * The menu definition is in resources/sysres_??.rc.
4150 * Once these are OK, we better use MF_BYCOMMAND here
4151 * (as we do in EDIT_WM_Command()).
4152 *
4153 */
4154 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4155 {
4156 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4157 HMENU popup = GetSubMenu(menu, 0);
4158 UINT start = es->selection_start;
4159 UINT end = es->selection_end;
4160
4161 ORDER_UINT(start, end);
4162
4163 /* undo */
4164 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4165 /* cut */
4166 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4167 /* copy */
4168 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4169 /* paste */
4170 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4171 /* delete */
4172 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4173 /* select all */
4174 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
4175
4176 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
4177 {
4178 RECT rc;
4179 /* Windows places the menu at the edit's center in this case */
4180 GetClientRect(es->hwndSelf, &rc);
4181 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
4182 x = rc.left + (rc.right - rc.left) / 2;
4183 y = rc.top + (rc.bottom - rc.top) / 2;
4184 }
4185
4186 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4187 DestroyMenu(menu);
4188 }
4189
4190
4191 /*********************************************************************
4192 *
4193 * WM_COPY
4194 *
4195 */
4196 static void EDIT_WM_Copy(EDITSTATE *es)
4197 {
4198 INT s = min(es->selection_start, es->selection_end);
4199 INT e = max(es->selection_start, es->selection_end);
4200 HGLOBAL hdst;
4201 LPWSTR dst;
4202 DWORD len;
4203
4204 if (e == s) return;
4205
4206 len = e - s;
4207 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4208 dst = GlobalLock(hdst);
4209 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4210 dst[len] = 0; /* ensure 0 termination */
4211 TRACE("%s\n", debugstr_w(dst));
4212 GlobalUnlock(hdst);
4213 OpenClipboard(es->hwndSelf);
4214 EmptyClipboard();
4215 SetClipboardData(CF_UNICODETEXT, hdst);
4216 CloseClipboard();
4217 }
4218
4219
4220 /*********************************************************************
4221 *
4222 * WM_CREATE
4223 *
4224 */
4225 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4226 {
4227 RECT clientRect;
4228
4229 TRACE("%s\n", debugstr_w(name));
4230 /*
4231 * To initialize some final structure members, we call some helper
4232 * functions. However, since the EDITSTATE is not consistent (i.e.
4233 * not fully initialized), we should be very careful which
4234 * functions can be called, and in what order.
4235 */
4236 EDIT_WM_SetFont(es, 0, FALSE);
4237 EDIT_EM_EmptyUndoBuffer(es);
4238
4239 /* We need to calculate the format rect
4240 (applications may send EM_SETMARGINS before the control gets visible) */
4241 GetClientRect(es->hwndSelf, &clientRect);
4242 EDIT_SetRectNP(es, &clientRect);
4243
4244 if (name && *name) {
4245 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4246 /* if we insert text to the editline, the text scrolls out
4247 * of the window, as the caret is placed after the insert
4248 * pos normally; thus we reset es->selection... to 0 and
4249 * update caret
4250 */
4251 es->selection_start = es->selection_end = 0;
4252 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4253 * Messages are only to be sent when the USER does something to
4254 * change the contents. So I am removing this EN_CHANGE
4255 *
4256 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4257 */
4258 EDIT_EM_ScrollCaret(es);
4259 }
4260 /* force scroll info update */
4261 EDIT_UpdateScrollInfo(es);
4262 /* The rule seems to return 1 here for success */
4263 /* Power Builder masked edit controls will crash */
4264 /* if not. */
4265 /* FIXME: is that in all cases so ? */
4266 return 1;
4267 }
4268
4269
4270 /*********************************************************************
4271 *
4272 * WM_DESTROY
4273 *
4274 */
4275 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4276 {
4277 LINEDEF *pc, *pp;
4278
4279 if (es->hloc32W) {
4280 LocalFree(es->hloc32W);
4281 }
4282 if (es->hloc32A) {
4283 LocalFree(es->hloc32A);
4284 }
4285 if (es->hloc16) {
4286 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
4287 HANDLE16 oldDS = stack16->ds;
4288
4289 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4290 while (LocalUnlock16(es->hloc16)) ;
4291 LocalFree16(es->hloc16);
4292 stack16->ds = oldDS;
4293 }
4294
4295 pc = es->first_line_def;
4296 while (pc)
4297 {
4298 pp = pc->next;
4299 HeapFree(GetProcessHeap(), 0, pc);
4300 pc = pp;
4301 }
4302
4303 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4304 HeapFree(GetProcessHeap(), 0, es);
4305
4306 return 0;
4307 }
4308
4309
4310 /*********************************************************************
4311 *
4312 * WM_GETTEXT
4313 *
4314 */
4315 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4316 {
4317 if(!count) return 0;
4318
4319 if(unicode)
4320 {
4321 lstrcpynW(dst, es->text, count);
4322 return strlenW(dst);
4323 }
4324 else
4325 {
4326 LPSTR textA = (LPSTR)dst;
4327 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4328 textA[count - 1] = 0; /* ensure 0 termination */
4329 return strlen(textA);
4330 }
4331 }
4332
4333 /*********************************************************************
4334 *
4335 * WM_HSCROLL
4336 *
4337 */
4338 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4339 {
4340 INT dx;
4341 INT fw;
4342
4343 if (!(es->style & ES_MULTILINE))
4344 return 0;
4345
4346 if (!(es->style & ES_AUTOHSCROLL))
4347 return 0;
4348
4349 dx = 0;
4350 fw = es->format_rect.right - es->format_rect.left;
4351 switch (action) {
4352 case SB_LINELEFT:
4353 TRACE("SB_LINELEFT\n");
4354 if (es->x_offset)
4355 dx = -es->char_width;
4356 break;
4357 case SB_LINERIGHT:
4358 TRACE("SB_LINERIGHT\n");
4359 if (es->x_offset < es->text_width)
4360 dx = es->char_width;
4361 break;
4362 case SB_PAGELEFT:
4363 TRACE("SB_PAGELEFT\n");
4364 if (es->x_offset)
4365 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4366 break;
4367 case SB_PAGERIGHT:
4368 TRACE("SB_PAGERIGHT\n");
4369 if (es->x_offset < es->text_width)
4370 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4371 break;
4372 case SB_LEFT:
4373 TRACE("SB_LEFT\n");
4374 if (es->x_offset)
4375 dx = -es->x_offset;
4376 break;
4377 case SB_RIGHT:
4378 TRACE("SB_RIGHT\n");
4379 if (es->x_offset < es->text_width)
4380 dx = es->text_width - es->x_offset;
4381 break;
4382 case SB_THUMBTRACK:
4383 TRACE("SB_THUMBTRACK %d\n", pos);
4384 es->flags |= EF_HSCROLL_TRACK;
4385 if(es->style & WS_HSCROLL)
4386 dx = pos - es->x_offset;
4387 else
4388 {
4389 INT fw, new_x;
4390 /* Sanity check */
4391 if(pos < 0 || pos > 100) return 0;
4392 /* Assume default scroll range 0-100 */
4393 fw = es->format_rect.right - es->format_rect.left;
4394 new_x = pos * (es->text_width - fw) / 100;
4395 dx = es->text_width ? (new_x - es->x_offset) : 0;
4396 }
4397 break;
4398 case SB_THUMBPOSITION:
4399 TRACE("SB_THUMBPOSITION %d\n", pos);
4400 es->flags &= ~EF_HSCROLL_TRACK;
4401 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4402 dx = pos - es->x_offset;
4403 else
4404 {
4405 INT fw, new_x;
4406 /* Sanity check */
4407 if(pos < 0 || pos > 100) return 0;
4408 /* Assume default scroll range 0-100 */
4409 fw = es->format_rect.right - es->format_rect.left;
4410 new_x = pos * (es->text_width - fw) / 100;
4411 dx = es->text_width ? (new_x - es->x_offset) : 0;
4412 }
4413 if (!dx) {
4414 /* force scroll info update */
4415 EDIT_UpdateScrollInfo(es);
4416 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4417 }
4418 break;
4419 case SB_ENDSCROLL:
4420 TRACE("SB_ENDSCROLL\n");
4421 break;
4422 /*
4423 * FIXME : the next two are undocumented !
4424 * Are we doing the right thing ?
4425 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4426 * although it's also a regular control message.
4427 */
4428 case EM_GETTHUMB: /* this one is used by NT notepad */
4429 case EM_GETTHUMB16:
4430 {
4431 LRESULT ret;
4432 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4433 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4434 else
4435 {
4436 /* Assume default scroll range 0-100 */
4437 INT fw = es->format_rect.right - es->format_rect.left;
4438 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4439 }
4440 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4441 return ret;
4442 }
4443 case EM_LINESCROLL16:
4444 TRACE("EM_LINESCROLL16\n");
4445 dx = pos;
4446 break;
4447
4448 default:
4449 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4450 action, action);
4451 return 0;
4452 }
4453 if (dx)
4454 {
4455 INT fw = es->format_rect.right - es->format_rect.left;
4456 /* check if we are going to move too far */
4457 if(es->x_offset + dx + fw > es->text_width)
4458 dx = es->text_width - fw - es->x_offset;
4459 if(dx)
4460 EDIT_EM_LineScroll_internal(es, dx, 0);
4461 }
4462 return 0;
4463 }
4464
4465
4466 /*********************************************************************
4467 *
4468 * EDIT_CheckCombo
4469 *
4470 */
4471 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4472 {
4473 HWND hLBox = es->hwndListBox;
4474 HWND hCombo;
4475 BOOL bDropped;
4476 int nEUI;
4477
4478 if (!hLBox)
4479 return FALSE;
4480
4481 hCombo = GetParent(es->hwndSelf);
4482 bDropped = TRUE;
4483 nEUI = 0;
4484
4485 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4486
4487 if (key == VK_UP || key == VK_DOWN)
4488 {
4489 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4490 nEUI = 1;
4491
4492 if (msg == WM_KEYDOWN || nEUI)
4493 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4494 }
4495
4496 switch (msg)
4497 {
4498 case WM_KEYDOWN:
4499 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4500 {
4501 /* make sure ComboLBox pops up */
4502 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4503 key = VK_F4;
4504 nEUI = 2;
4505 }
4506
4507 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4508 break;
4509
4510 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4511 if (nEUI)
4512 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4513 else
4514 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4515 break;
4516 }
4517
4518 if(nEUI == 2)
4519 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4520
4521 return TRUE;
4522 }
4523
4524
4525 /*********************************************************************
4526 *
4527 * WM_KEYDOWN
4528 *
4529 * Handling of special keys that don't produce a WM_CHAR
4530 * (i.e. non-printable keys) & Backspace & Delete
4531 *
4532 */
4533 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4534 {
4535 BOOL shift;
4536 BOOL control;
4537
4538 if (GetKeyState(VK_MENU) & 0x8000)
4539 return 0;
4540
4541 shift = GetKeyState(VK_SHIFT) & 0x8000;
4542 control = GetKeyState(VK_CONTROL) & 0x8000;
4543
4544 switch (key) {
4545 case VK_F4:
4546 case VK_UP:
4547 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4548 break;
4549
4550 /* fall through */
4551 case VK_LEFT:
4552 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4553 EDIT_MoveUp_ML(es, shift);
4554 else
4555 if (control)
4556 EDIT_MoveWordBackward(es, shift);
4557 else
4558 EDIT_MoveBackward(es, shift);
4559 break;
4560 case VK_DOWN:
4561 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4562 break;
4563 /* fall through */
4564 case VK_RIGHT:
4565 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4566 EDIT_MoveDown_ML(es, shift);
4567 else if (control)
4568 EDIT_MoveWordForward(es, shift);
4569 else
4570 EDIT_MoveForward(es, shift);
4571 break;
4572 case VK_HOME:
4573 EDIT_MoveHome(es, shift, control);
4574 break;
4575 case VK_END:
4576 EDIT_MoveEnd(es, shift, control);
4577 break;
4578 case VK_PRIOR:
4579 if (es->style & ES_MULTILINE)
4580 EDIT_MovePageUp_ML(es, shift);
4581 else
4582 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4583 break;
4584 case VK_NEXT:
4585 if (es->style & ES_MULTILINE)
4586 EDIT_MovePageDown_ML(es, shift);
4587 else
4588 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4589 break;
4590 case VK_DELETE:
4591 if (!(es->style & ES_READONLY) && !(shift && control)) {
4592 if (es->selection_start != es->selection_end) {
4593 if (shift)
4594 EDIT_WM_Cut(es);
4595 else
4596 EDIT_WM_Clear(es);
4597 } else {
4598 if (shift) {
4599 /* delete character left of caret */
4600 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4601 EDIT_MoveBackward(es, TRUE);
4602 EDIT_WM_Clear(es);
4603 } else if (control) {
4604 /* delete to end of line */
4605 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4606 EDIT_MoveEnd(es, TRUE, FALSE);
4607 EDIT_WM_Clear(es);
4608 } else {
4609 /* delete character right of caret */
4610 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4611 EDIT_MoveForward(es, TRUE);
4612 EDIT_WM_Clear(es);
4613 }
4614 }
4615 }
4616 break;
4617 case VK_INSERT:
4618 if (shift) {
4619 if (!(es->style & ES_READONLY))
4620 EDIT_WM_Paste(es);
4621 } else if (control)
4622 EDIT_WM_Copy(es);
4623 break;
4624 case VK_RETURN:
4625 /* If the edit doesn't want the return send a message to the default object */
4626 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
4627 {
4628 HWND hwndParent;
4629 DWORD dw;
4630
4631 if (!EDIT_IsInsideDialog(es)) return 1;
4632 if (control) break;
4633 hwndParent = GetParent(es->hwndSelf);
4634 dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4635 if (HIWORD(dw) == DC_HASDEFID)
4636 {
4637 SendMessageW( hwndParent, WM_COMMAND,
4638 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4639 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4640 }
4641 else
4642 SendMessageW( hwndParent, WM_COMMAND, IDOK, (LPARAM)GetDlgItem( hwndParent, IDOK ) );
4643 }
4644 break;
4645 case VK_ESCAPE:
4646 if (!(es->style & ES_MULTILINE))
4647 SendMessageW(GetParent(es->hwndSelf), WM_COMMAND, IDCANCEL, (LPARAM)GetDlgItem( GetParent(es->hwndSelf), IDCANCEL ) );
4648 break;
4649 case VK_TAB:
4650 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
4651 break;
4652 }
4653 return 0;
4654 }
4655
4656
4657 /*********************************************************************
4658 *
4659 * WM_KILLFOCUS
4660 *
4661 */
4662 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4663 {
4664 es->flags &= ~EF_FOCUSED;
4665 DestroyCaret();
4666 if(!(es->style & ES_NOHIDESEL))
4667 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4668 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4669 return 0;
4670 }
4671
4672
4673 /*********************************************************************
4674 *
4675 * WM_LBUTTONDBLCLK
4676 *
4677 * The caret position has been set on the WM_LBUTTONDOWN message
4678 *
4679 */
4680 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4681 {
4682 INT s;
4683 INT e = es->selection_end;
4684 INT l;
4685 INT li;
4686 INT ll;
4687
4688 es->bCaptureState = TRUE;
4689 SetCapture(es->hwndSelf);
4690
4691 l = EDIT_EM_LineFromChar(es, e);
4692 li = EDIT_EM_LineIndex(es, l);
4693 ll = EDIT_EM_LineLength(es, e);
4694 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4695 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4696 EDIT_EM_SetSel(es, s, e, FALSE);
4697 EDIT_EM_ScrollCaret(es);
4698 es->region_posx = es->region_posy = 0;
4699 SetTimer(es->hwndSelf, 0, 100, NULL);
4700 return 0;
4701 }
4702
4703
4704 /*********************************************************************
4705 *
4706 * WM_LBUTTONDOWN
4707 *
4708 */
4709 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4710 {
4711 INT e;
4712 BOOL after_wrap;
4713
4714 es->bCaptureState = TRUE;
4715 SetCapture(es->hwndSelf);
4716 EDIT_ConfinePoint(es, &x, &y);
4717 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4718 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4719 EDIT_EM_ScrollCaret(es);
4720 es->region_posx = es->region_posy = 0;
4721 SetTimer(es->hwndSelf, 0, 100, NULL);
4722
4723 if (!(es->flags & EF_FOCUSED))
4724 SetFocus(es->hwndSelf);
4725
4726 return 0;
4727 }
4728
4729
4730 /*********************************************************************
4731 *
4732 * WM_LBUTTONUP
4733 *
4734 */
4735 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4736 {
4737 if (es->bCaptureState) {
4738 KillTimer(es->hwndSelf, 0);
4739 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4740 }
4741 es->bCaptureState = FALSE;
4742 return 0;
4743 }
4744
4745
4746 /*********************************************************************
4747 *
4748 * WM_MBUTTONDOWN
4749 *
4750 */
4751 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4752 {
4753 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4754 return 0;
4755 }
4756
4757
4758 /*********************************************************************
4759 *
4760 * WM_MOUSEMOVE
4761 *
4762 */
4763 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4764 {
4765 INT e;
4766 BOOL after_wrap;
4767 INT prex, prey;
4768
4769 /* If the mouse has been captured by process other than the edit control itself,
4770 * the windows edit controls will not select the strings with mouse move.
4771 */
4772 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4773 return 0;
4774
4775 /*
4776 * FIXME: gotta do some scrolling if outside client
4777 * area. Maybe reset the timer ?
4778 */
4779 prex = x; prey = y;
4780 EDIT_ConfinePoint(es, &x, &y);
4781 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4782 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4783 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4784 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4785 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4786 return 0;
4787 }
4788
4789
4790 /*********************************************************************
4791 *
4792 * WM_NCCREATE
4793 *
4794 * See also EDIT_WM_StyleChanged
4795 */
4796 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4797 {
4798 EDITSTATE *es;
4799 UINT alloc_size;
4800
4801 TRACE("Creating %s edit control, style = %08x\n",
4802 unicode ? "Unicode" : "ANSI", lpcs->style);
4803
4804 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4805 return FALSE;
4806 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4807
4808 /*
4809 * Note: since the EDITSTATE has not been fully initialized yet,
4810 * we can't use any API calls that may send
4811 * WM_XXX messages before WM_NCCREATE is completed.
4812 */
4813
4814 es->is_unicode = unicode;
4815 es->style = lpcs->style;
4816
4817 es->bEnableState = !(es->style & WS_DISABLED);
4818
4819 es->hwndSelf = hwnd;
4820 /* Save parent, which will be notified by EN_* messages */
4821 es->hwndParent = lpcs->hwndParent;
4822
4823 if (es->style & ES_COMBO)
4824 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4825
4826 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4827 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4828
4829 /* Number overrides lowercase overrides uppercase (at least it
4830 * does in Win95). However I'll bet that ES_NUMBER would be
4831 * invalid under Win 3.1.
4832 */
4833 if (es->style & ES_NUMBER) {
4834 ; /* do not override the ES_NUMBER */
4835 } else if (es->style & ES_LOWERCASE) {
4836 es->style &= ~ES_UPPERCASE;
4837 }
4838 if (es->style & ES_MULTILINE) {
4839 es->buffer_limit = BUFLIMIT_INITIAL;
4840 if (es->style & WS_VSCROLL)
4841 es->style |= ES_AUTOVSCROLL;
4842 if (es->style & WS_HSCROLL)
4843 es->style |= ES_AUTOHSCROLL;
4844 es->style &= ~ES_PASSWORD;
4845 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4846 /* Confirmed - RIGHT overrides CENTER */
4847 if (es->style & ES_RIGHT)
4848 es->style &= ~ES_CENTER;
4849 es->style &= ~WS_HSCROLL;
4850 es->style &= ~ES_AUTOHSCROLL;
4851 }
4852 } else {
4853 es->buffer_limit = BUFLIMIT_INITIAL;
4854 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4855 es->style &= ~ES_CENTER;
4856 es->style &= ~WS_HSCROLL;
4857 es->style &= ~WS_VSCROLL;
4858 if (es->style & ES_PASSWORD)
4859 es->password_char = '*';
4860 }
4861
4862 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4863 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4864 return FALSE;
4865 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4866
4867 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4868 return FALSE;
4869 es->undo_buffer_size = es->buffer_size;
4870
4871 if (es->style & ES_MULTILINE)
4872 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4873 return FALSE;
4874 es->line_count = 1;
4875
4876 /*
4877 * In Win95 look and feel, the WS_BORDER style is replaced by the
4878 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4879 * control a nonclient area so we don't need to draw the border.
4880 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4881 * a nonclient area and we should handle painting the border ourselves.
4882 *
4883 * When making modifications please ensure that the code still works
4884 * for edit controls created directly with style 0x50800000, exStyle 0
4885 * (which should have a single pixel border)
4886 */
4887 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4888 es->style &= ~WS_BORDER;
4889 else if (es->style & WS_BORDER)
4890 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4891
4892 return TRUE;
4893 }
4894
4895 /*********************************************************************
4896 *
4897 * WM_PAINT
4898 *
4899 */
4900 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4901 {
4902 PAINTSTRUCT ps;
4903 INT i;
4904 HDC dc;
4905 HFONT old_font = 0;
4906 RECT rc;
4907 RECT rcClient;
4908 RECT rcLine;
4909 RECT rcRgn;
4910 HBRUSH brush;
4911 HBRUSH old_brush;
4912 INT bw, bh;
4913 BOOL rev = es->bEnableState &&
4914 ((es->flags & EF_FOCUSED) ||
4915 (es->style & ES_NOHIDESEL));
4916 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4917
4918 GetClientRect(es->hwndSelf, &rcClient);
4919
4920 /* get the background brush */
4921 brush = EDIT_NotifyCtlColor(es, dc);
4922
4923 /* paint the border and the background */
4924 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4925
4926 if(es->style & WS_BORDER) {
4927 bw = GetSystemMetrics(SM_CXBORDER);
4928 bh = GetSystemMetrics(SM_CYBORDER);
4929 rc = rcClient;
4930 if(es->style & ES_MULTILINE) {
4931 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4932 if(es->style & WS_VSCROLL) rc.right+=bw;
4933 }
4934
4935 /* Draw the frame. Same code as in nonclient.c */
4936 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4937 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4938 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4939 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4940 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4941 SelectObject(dc, old_brush);
4942
4943 /* Keep the border clean */
4944 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4945 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4946 }
4947
4948 GetClipBox(dc, &rc);
4949 FillRect(dc, &rc, brush);
4950
4951 IntersectClipRect(dc, es->format_rect.left,
4952 es->format_rect.top,
4953 es->format_rect.right,
4954 es->format_rect.bottom);
4955 if (es->style & ES_MULTILINE) {
4956 rc = rcClient;
4957 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4958 }
4959 if (es->font)
4960 old_font = SelectObject(dc, es->font);
4961
4962 if (!es->bEnableState)
4963 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4964 GetClipBox(dc, &rcRgn);
4965 if (es->style & ES_MULTILINE) {
4966 INT vlc = get_vertical_line_count(es);
4967 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4968 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4969 if (IntersectRect(&rc, &rcRgn, &rcLine))
4970 EDIT_PaintLine(es, dc, i, rev);
4971 }
4972 } else {
4973 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4974 if (IntersectRect(&rc, &rcRgn, &rcLine))
4975 EDIT_PaintLine(es, dc, 0, rev);
4976 }
4977 if (es->font)
4978 SelectObject(dc, old_font);
4979
4980 if (!hdc)
4981 EndPaint(es->hwndSelf, &ps);
4982 }
4983
4984
4985 /*********************************************************************
4986 *
4987 * WM_PASTE
4988 *
4989 */
4990 static void EDIT_WM_Paste(EDITSTATE *es)
4991 {
4992 HGLOBAL hsrc;
4993 LPWSTR src;
4994
4995 /* Protect read-only edit control from modification */
4996 if(es->style & ES_READONLY)
4997 return;
4998
4999 OpenClipboard(es->hwndSelf);
5000 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
5001 src = GlobalLock(hsrc);
5002 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
5003 GlobalUnlock(hsrc);
5004 }
5005 else if (es->style & ES_PASSWORD) {
5006 /* clear selected text in password edit box even with empty clipboard */
5007 const WCHAR empty_strW[] = { 0 };
5008 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
5009 }
5010 CloseClipboard();
5011 }
5012
5013
5014 /*********************************************************************
5015 *
5016 * WM_SETFOCUS
5017 *
5018 */
5019 static void EDIT_WM_SetFocus(EDITSTATE *es)
5020 {
5021 es->flags |= EF_FOCUSED;
5022
5023 if (!(es->style & ES_NOHIDESEL))
5024 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
5025
5026 /* single line edit updates itself */
5027 if (!(es->style & ES_MULTILINE))
5028 {
5029 HDC hdc = GetDC(es->hwndSelf);
5030 EDIT_WM_Paint(es, hdc);
5031 ReleaseDC(es->hwndSelf, hdc);
5032 }
5033
5034 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5035 EDIT_SetCaretPos(es, es->selection_end,
5036 es->flags & EF_AFTER_WRAP);
5037 ShowCaret(es->hwndSelf);
5038 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
5039 }
5040
5041
5042 /*********************************************************************
5043 *
5044 * WM_SETFONT
5045 *
5046 * With Win95 look the margins are set to default font value unless
5047 * the system font (font == 0) is being set, in which case they are left
5048 * unchanged.
5049 *
5050 */
5051 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
5052 {
5053 TEXTMETRICW tm;
5054 HDC dc;
5055 HFONT old_font = 0;
5056 RECT clientRect;
5057
5058 es->font = font;
5059 dc = GetDC(es->hwndSelf);
5060 if (font)
5061 old_font = SelectObject(dc, font);
5062 GetTextMetricsW(dc, &tm);
5063 es->line_height = tm.tmHeight;
5064 es->char_width = tm.tmAveCharWidth;
5065 if (font)
5066 SelectObject(dc, old_font);
5067 ReleaseDC(es->hwndSelf, dc);
5068
5069 /* Reset the format rect and the margins */
5070 GetClientRect(es->hwndSelf, &clientRect);
5071 EDIT_SetRectNP(es, &clientRect);
5072 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
5073 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
5074
5075 if (es->style & ES_MULTILINE)
5076 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
5077 else
5078 EDIT_CalcLineWidth_SL(es);
5079
5080 if (redraw)
5081 EDIT_UpdateText(es, NULL, TRUE);
5082 if (es->flags & EF_FOCUSED) {
5083 DestroyCaret();
5084 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5085 EDIT_SetCaretPos(es, es->selection_end,
5086 es->flags & EF_AFTER_WRAP);
5087 ShowCaret(es->hwndSelf);
5088 }
5089 }
5090
5091
5092 /*********************************************************************
5093 *
5094 * WM_SETTEXT
5095 *
5096 * NOTES
5097 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5098 * The modified flag is reset. No notifications are sent.
5099 *
5100 * For single-line controls, reception of WM_SETTEXT triggers:
5101 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5102 *
5103 */
5104 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5105 {
5106 LPWSTR textW = NULL;
5107 if (!unicode && text)
5108 {
5109 LPCSTR textA = (LPCSTR)text;
5110 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5111 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5112 if (textW)
5113 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5114 text = textW;
5115 }
5116
5117 if (es->flags & EF_UPDATE)
5118 /* fixed this bug once; complain if we see it about to happen again. */
5119 ERR("SetSel may generate UPDATE message whose handler may reset "
5120 "selection.\n");
5121
5122 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5123 if (text)
5124 {
5125 TRACE("%s\n", debugstr_w(text));
5126 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5127 if(!unicode)
5128 HeapFree(GetProcessHeap(), 0, textW);
5129 }
5130 else
5131 {
5132 static const WCHAR empty_stringW[] = {0};
5133 TRACE("<NULL>\n");
5134 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5135 }
5136 es->x_offset = 0;
5137 es->flags &= ~EF_MODIFIED;
5138 EDIT_EM_SetSel(es, 0, 0, FALSE);
5139
5140 /* Send the notification after the selection start and end have been set
5141 * edit control doesn't send notification on WM_SETTEXT
5142 * if it is multiline, or it is part of combobox
5143 */
5144 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5145 {
5146 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5147 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5148 }
5149 EDIT_EM_ScrollCaret(es);
5150 EDIT_UpdateScrollInfo(es);
5151 }
5152
5153
5154 /*********************************************************************
5155 *
5156 * WM_SIZE
5157 *
5158 */
5159 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5160 {
5161 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5162 RECT rc;
5163 TRACE("width = %d, height = %d\n", width, height);
5164 SetRect(&rc, 0, 0, width, height);
5165 EDIT_SetRectNP(es, &rc);
5166 EDIT_UpdateText(es, NULL, TRUE);
5167 }
5168 }
5169
5170
5171 /*********************************************************************
5172 *
5173 * WM_STYLECHANGED
5174 *
5175 * This message is sent by SetWindowLong on having changed either the Style
5176 * or the extended style.
5177 *
5178 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5179 *
5180 * See also EDIT_WM_NCCreate
5181 *
5182 * It appears that the Windows version of the edit control allows the style
5183 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5184 * style variable which will generally be different. In this function we
5185 * update the internal style based on what changed in the externally visible
5186 * style.
5187 *
5188 * Much of this content as based upon the MSDN, especially:
5189 * Platform SDK Documentation -> User Interface Services ->
5190 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5191 * Edit Control Styles
5192 */
5193 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5194 {
5195 if (GWL_STYLE == which) {
5196 DWORD style_change_mask;
5197 DWORD new_style;
5198 /* Only a subset of changes can be applied after the control
5199 * has been created.
5200 */
5201 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5202 ES_NUMBER;
5203 if (es->style & ES_MULTILINE)
5204 style_change_mask |= ES_WANTRETURN;
5205
5206 new_style = style->styleNew & style_change_mask;
5207
5208 /* Number overrides lowercase overrides uppercase (at least it
5209 * does in Win95). However I'll bet that ES_NUMBER would be
5210 * invalid under Win 3.1.
5211 */
5212 if (new_style & ES_NUMBER) {
5213 ; /* do not override the ES_NUMBER */
5214 } else if (new_style & ES_LOWERCASE) {
5215 new_style &= ~ES_UPPERCASE;
5216 }
5217
5218 es->style = (es->style & ~style_change_mask) | new_style;
5219 } else if (GWL_EXSTYLE == which) {
5220 ; /* FIXME - what is needed here */
5221 } else {
5222 WARN ("Invalid style change %ld\n",which);
5223 }
5224
5225 return 0;
5226 }
5227
5228 /*********************************************************************
5229 *
5230 * WM_SYSKEYDOWN
5231 *
5232 */
5233 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5234 {
5235 if ((key == VK_BACK) && (key_data & 0x2000)) {
5236 if (EDIT_EM_CanUndo(es))
5237 EDIT_EM_Undo(es);
5238 return 0;
5239 } else if (key == VK_UP || key == VK_DOWN) {
5240 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5241 return 0;
5242 }
5243 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5244 }
5245
5246
5247 /*********************************************************************
5248 *
5249 * WM_TIMER
5250 *
5251 */
5252 static void EDIT_WM_Timer(EDITSTATE *es)
5253 {
5254 if (es->region_posx < 0) {
5255 EDIT_MoveBackward(es, TRUE);
5256 } else if (es->region_posx > 0) {
5257 EDIT_MoveForward(es, TRUE);
5258 }
5259 /*
5260 * FIXME: gotta do some vertical scrolling here, like
5261 * EDIT_EM_LineScroll(hwnd, 0, 1);
5262 */
5263 }
5264
5265 /*********************************************************************
5266 *
5267 * WM_VSCROLL
5268 *
5269 */
5270 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5271 {
5272 INT dy;
5273
5274 if (!(es->style & ES_MULTILINE))
5275 return 0;
5276
5277 if (!(es->style & ES_AUTOVSCROLL))
5278 return 0;
5279
5280 dy = 0;
5281 switch (action) {
5282 case SB_LINEUP:
5283 case SB_LINEDOWN:
5284 case SB_PAGEUP:
5285 case SB_PAGEDOWN:
5286 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5287 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5288 (action == SB_PAGEUP ? "SB_PAGEUP" :
5289 "SB_PAGEDOWN"))));
5290 EDIT_EM_Scroll(es, action);
5291 return 0;
5292 case SB_TOP:
5293 TRACE("SB_TOP\n");
5294 dy = -es->y_offset;
5295 break;
5296 case SB_BOTTOM:
5297 TRACE("SB_BOTTOM\n");
5298 dy = es->line_count - 1 - es->y_offset;
5299 break;
5300 case SB_THUMBTRACK:
5301 TRACE("SB_THUMBTRACK %d\n", pos);
5302 es->flags |= EF_VSCROLL_TRACK;
5303 if(es->style & WS_VSCROLL)
5304 dy = pos - es->y_offset;
5305 else
5306 {
5307 /* Assume default scroll range 0-100 */
5308 INT vlc, new_y;
5309 /* Sanity check */
5310 if(pos < 0 || pos > 100) return 0;
5311 vlc = get_vertical_line_count(es);
5312 new_y = pos * (es->line_count - vlc) / 100;
5313 dy = es->line_count ? (new_y - es->y_offset) : 0;
5314 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5315 es->line_count, es->y_offset, pos, dy);
5316 }
5317 break;
5318 case SB_THUMBPOSITION:
5319 TRACE("SB_THUMBPOSITION %d\n", pos);
5320 es->flags &= ~EF_VSCROLL_TRACK;
5321 if(es->style & WS_VSCROLL)
5322 dy = pos - es->y_offset;
5323 else
5324 {
5325 /* Assume default scroll range 0-100 */
5326 INT vlc, new_y;
5327 /* Sanity check */
5328 if(pos < 0 || pos > 100) return 0;
5329 vlc = get_vertical_line_count(es);
5330 new_y = pos * (es->line_count - vlc) / 100;
5331 dy = es->line_count ? (new_y - es->y_offset) : 0;
5332 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5333 es->line_count, es->y_offset, pos, dy);
5334 }
5335 if (!dy)
5336 {
5337 /* force scroll info update */
5338 EDIT_UpdateScrollInfo(es);
5339 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5340 }
5341 break;
5342 case SB_ENDSCROLL:
5343 TRACE("SB_ENDSCROLL\n");
5344 break;
5345 /*
5346 * FIXME : the next two are undocumented !
5347 * Are we doing the right thing ?
5348 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5349 * although it's also a regular control message.
5350 */
5351 case EM_GETTHUMB: /* this one is used by NT notepad */
5352 case EM_GETTHUMB16:
5353 {
5354 LRESULT ret;
5355 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5356 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5357 else
5358 {
5359 /* Assume default scroll range 0-100 */
5360 INT vlc = get_vertical_line_count(es);
5361 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5362 }
5363 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5364 return ret;
5365 }
5366 case EM_LINESCROLL16:
5367 TRACE("EM_LINESCROLL16 %d\n", pos);
5368 dy = pos;
5369 break;
5370
5371 default:
5372 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5373 action, action);
5374 return 0;
5375 }
5376 if (dy)
5377 EDIT_EM_LineScroll(es, 0, dy);
5378 return 0;
5379 }
5380
5381 /*********************************************************************
5382 *
5383 * EDIT_UpdateText
5384 *
5385 */
5386 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5387 {
5388 if (es->flags & EF_UPDATE) {
5389 es->flags &= ~EF_UPDATE;
5390 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5391 }
5392 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5393 }
5394
5395
5396 /*********************************************************************
5397 *
5398 * EDIT_UpdateText
5399 *
5400 */
5401 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
5402 {
5403 if (es->flags & EF_UPDATE) {
5404 es->flags &= ~EF_UPDATE;
5405 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5406 }
5407 InvalidateRect(es->hwndSelf, rc, bErase);
5408 }
5409
5410 /********************************************************************
5411 *
5412 * The Following code is to handle inline editing from IMEs
5413 */
5414
5415 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
5416 {
5417 LONG buflen;
5418 LPWSTR lpCompStr = NULL;
5419 LPSTR lpCompStrAttr = NULL;
5420 DWORD dwBufLenAttr;
5421
5422 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5423
5424 if (buflen < 0)
5425 {
5426 return;
5427 }
5428
5429 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
5430 if (!lpCompStr)
5431 {
5432 ERR("Unable to allocate IME CompositionString\n");
5433 return;
5434 }
5435
5436 if (buflen)
5437 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
5438 lpCompStr[buflen/sizeof(WCHAR)] = 0;
5439
5440 if (CompFlag & GCS_COMPATTR)
5441 {
5442 /*
5443 * We do not use the attributes yet. it would tell us what characters
5444 * are in transition and which are converted or decided upon
5445 */
5446 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5447 if (dwBufLenAttr)
5448 {
5449 dwBufLenAttr ++;
5450 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
5451 if (!lpCompStrAttr)
5452 {
5453 ERR("Unable to allocate IME Attribute String\n");
5454 HeapFree(GetProcessHeap(),0,lpCompStr);
5455 return;
5456 }
5457 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5458 dwBufLenAttr);
5459 lpCompStrAttr[dwBufLenAttr] = 0;
5460 }
5461 else
5462 lpCompStrAttr = NULL;
5463 }
5464
5465 /* check for change in composition start */
5466 if (es->selection_end < es->composition_start)
5467 es->composition_start = es->selection_end;
5468
5469 /* replace existing selection string */
5470 es->selection_start = es->composition_start;
5471
5472 if (es->composition_len > 0)
5473 es->selection_end = es->composition_start + es->composition_len;
5474 else
5475 es->selection_end = es->selection_start;
5476
5477 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5478 es->composition_len = abs(es->composition_start - es->selection_end);
5479
5480 es->selection_start = es->composition_start;
5481 es->selection_end = es->selection_start + es->composition_len;
5482
5483 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5484 HeapFree(GetProcessHeap(),0,lpCompStr);
5485 }
5486
5487 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
5488 {
5489 LONG buflen;
5490 LPWSTR lpResultStr;
5491
5492 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5493 if (buflen <= 0)
5494 {
5495 return;
5496 }
5497
5498 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
5499 if (!lpResultStr)
5500 {
5501 ERR("Unable to alloc buffer for IME string\n");
5502 return;
5503 }
5504
5505 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
5506 lpResultStr[buflen/sizeof(WCHAR)] = 0;
5507
5508 /* check for change in composition start */
5509 if (es->selection_end < es->composition_start)
5510 es->composition_start = es->selection_end;
5511
5512 es->selection_start = es->composition_start;
5513 es->selection_end = es->composition_start + es->composition_len;
5514 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5515 es->composition_start = es->selection_end;
5516 es->composition_len = 0;
5517
5518 HeapFree(GetProcessHeap(),0,lpResultStr);
5519 }
5520
5521 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5522 {
5523 HIMC hIMC;
5524 int cursor;
5525
5526 if (es->composition_len == 0 && es->selection_start != es->selection_end)
5527 {
5528 static const WCHAR empty_stringW[] = {0};
5529 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
5530 es->composition_start = es->selection_end;
5531 }
5532
5533 hIMC = ImmGetContext(hwnd);
5534 if (!hIMC)
5535 return;
5536
5537 if (CompFlag & GCS_RESULTSTR)
5538 EDIT_GetResultStr(hIMC, es);
5539 if (CompFlag & GCS_COMPSTR)
5540 EDIT_GetCompositionStr(hIMC, CompFlag, es);
5541 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
5542 ImmReleaseContext(hwnd, hIMC);
5543 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
5544 }
Windows API implementation