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msi: Fix the published location of the upgrade code for the machine context.
[wine/multimedia.git] / dlls / user32 / edit.c
blobb37b5dc56c09bbdb9e89ef4e8d9ee03cbf5344ed
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 CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
227 /*
228 * EM_XXX message handlers
229 */
230 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
231 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
232 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
233 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
234 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode);
235 static LRESULT EDIT_EM_GetSel(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 /*********************************************************************
434 *
435 * EditWndProc_common
436 *
437 * The messages are in the order of the actual integer values
438 * (which can be found in include/windows.h)
439 * Wherever possible the 16 bit versions are converted to
440 * the 32 bit ones, so that we can 'fall through' to the
441 * helper functions. These are mostly 32 bit (with a few
442 * exceptions, clearly indicated by a '16' extension to their
443 * names).
444 *
445 */
446 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
447 WPARAM wParam, LPARAM lParam, BOOL unicode )
448 {
449 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
450 LRESULT result = 0;
451
452 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
453
454 if (!es && msg != WM_NCCREATE)
455 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
456
457 if (es && (msg != WM_DESTROY)) EDIT_LockBuffer(es);
458
459 switch (msg) {
460 case EM_GETSEL16:
461 wParam = 0;
462 lParam = 0;
463 /* fall through */
464 case EM_GETSEL:
465 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
466 break;
467
468 case EM_SETSEL16:
469 if ((short)LOWORD(lParam) == -1)
470 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
471 else
472 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
473 if (!wParam)
474 EDIT_EM_ScrollCaret(es);
475 result = 1;
476 break;
477 case EM_SETSEL:
478 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
479 EDIT_EM_ScrollCaret(es);
480 result = 1;
481 break;
482
483 case EM_GETRECT16:
484 if (lParam)
485 {
486 RECT16 *r16 = MapSL(lParam);
487 r16->left = es->format_rect.left;
488 r16->top = es->format_rect.top;
489 r16->right = es->format_rect.right;
490 r16->bottom = es->format_rect.bottom;
491 }
492 break;
493 case EM_GETRECT:
494 if (lParam)
495 CopyRect((LPRECT)lParam, &es->format_rect);
496 break;
497
498 case EM_SETRECT16:
499 if ((es->style & ES_MULTILINE) && lParam) {
500 RECT rc;
501 RECT16 *r16 = MapSL(lParam);
502 rc.left = r16->left;
503 rc.top = r16->top;
504 rc.right = r16->right;
505 rc.bottom = r16->bottom;
506 EDIT_SetRectNP(es, &rc);
507 EDIT_UpdateText(es, NULL, TRUE);
508 }
509 break;
510 case EM_SETRECT:
511 if ((es->style & ES_MULTILINE) && lParam) {
512 EDIT_SetRectNP(es, (LPRECT)lParam);
513 EDIT_UpdateText(es, NULL, TRUE);
514 }
515 break;
516
517 case EM_SETRECTNP16:
518 if ((es->style & ES_MULTILINE) && lParam) {
519 RECT rc;
520 RECT16 *r16 = MapSL(lParam);
521 rc.left = r16->left;
522 rc.top = r16->top;
523 rc.right = r16->right;
524 rc.bottom = r16->bottom;
525 EDIT_SetRectNP(es, &rc);
526 }
527 break;
528 case EM_SETRECTNP:
529 if ((es->style & ES_MULTILINE) && lParam)
530 EDIT_SetRectNP(es, (LPRECT)lParam);
531 break;
532
533 case EM_SCROLL16:
534 case EM_SCROLL:
535 result = EDIT_EM_Scroll(es, (INT)wParam);
536 break;
537
538 case EM_LINESCROLL16:
539 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
540 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
541 /* fall through */
542 case EM_LINESCROLL:
543 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
544 break;
545
546 case EM_SCROLLCARET16:
547 case EM_SCROLLCARET:
548 EDIT_EM_ScrollCaret(es);
549 result = 1;
550 break;
551
552 case EM_GETMODIFY16:
553 case EM_GETMODIFY:
554 result = ((es->flags & EF_MODIFIED) != 0);
555 break;
556
557 case EM_SETMODIFY16:
558 case EM_SETMODIFY:
559 if (wParam)
560 es->flags |= EF_MODIFIED;
561 else
562 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
563 break;
564
565 case EM_GETLINECOUNT16:
566 case EM_GETLINECOUNT:
567 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
568 break;
569
570 case EM_LINEINDEX16:
571 if ((INT16)wParam == -1)
572 wParam = (WPARAM)-1;
573 /* fall through */
574 case EM_LINEINDEX:
575 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
576 break;
577
578 case EM_SETHANDLE16:
579 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
580 break;
581 case EM_SETHANDLE:
582 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
583 break;
584
585 case EM_GETHANDLE16:
586 result = (LRESULT)EDIT_EM_GetHandle16(es);
587 break;
588 case EM_GETHANDLE:
589 result = (LRESULT)EDIT_EM_GetHandle(es);
590 break;
591
592 case EM_GETTHUMB16:
593 case EM_GETTHUMB:
594 result = EDIT_EM_GetThumb(es);
595 break;
596
597 /* these messages missing from specs */
598 case WM_USER+15:
599 case 0x00bf:
600 case WM_USER+16:
601 case 0x00c0:
602 case WM_USER+19:
603 case 0x00c3:
604 case WM_USER+26:
605 case 0x00ca:
606 FIXME("undocumented message 0x%x, please report\n", msg);
607 result = DefWindowProcW(hwnd, msg, wParam, lParam);
608 break;
609
610 case EM_LINELENGTH16:
611 case EM_LINELENGTH:
612 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
613 break;
614
615 case EM_REPLACESEL16:
616 lParam = (LPARAM)MapSL(lParam);
617 unicode = FALSE; /* 16-bit message is always ascii */
618 /* fall through */
619 case EM_REPLACESEL:
620 {
621 LPWSTR textW;
622
623 if(unicode)
624 textW = (LPWSTR)lParam;
625 else
626 {
627 LPSTR textA = (LPSTR)lParam;
628 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
629 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
630 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
631 }
632
633 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
634 result = 1;
635
636 if(!unicode)
637 HeapFree(GetProcessHeap(), 0, textW);
638 break;
639 }
640
641 case EM_GETLINE16:
642 lParam = (LPARAM)MapSL(lParam);
643 unicode = FALSE; /* 16-bit message is always ascii */
644 /* fall through */
645 case EM_GETLINE:
646 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
647 break;
648
649 case EM_LIMITTEXT16:
650 case EM_SETLIMITTEXT:
651 EDIT_EM_SetLimitText(es, wParam);
652 break;
653
654 case EM_CANUNDO16:
655 case EM_CANUNDO:
656 result = (LRESULT)EDIT_EM_CanUndo(es);
657 break;
658
659 case EM_UNDO16:
660 case EM_UNDO:
661 case WM_UNDO:
662 result = (LRESULT)EDIT_EM_Undo(es);
663 break;
664
665 case EM_FMTLINES16:
666 case EM_FMTLINES:
667 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
668 break;
669
670 case EM_LINEFROMCHAR16:
671 case EM_LINEFROMCHAR:
672 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
673 break;
674
675 case EM_SETTABSTOPS16:
676 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
677 break;
678 case EM_SETTABSTOPS:
679 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
680 break;
681
682 case EM_SETPASSWORDCHAR16:
683 unicode = FALSE; /* 16-bit message is always ascii */
684 /* fall through */
685 case EM_SETPASSWORDCHAR:
686 {
687 WCHAR charW = 0;
688
689 if(unicode)
690 charW = (WCHAR)wParam;
691 else
692 {
693 CHAR charA = wParam;
694 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
695 }
696
697 EDIT_EM_SetPasswordChar(es, charW);
698 break;
699 }
700
701 case EM_EMPTYUNDOBUFFER16:
702 case EM_EMPTYUNDOBUFFER:
703 EDIT_EM_EmptyUndoBuffer(es);
704 break;
705
706 case EM_GETFIRSTVISIBLELINE16:
707 result = es->y_offset;
708 break;
709 case EM_GETFIRSTVISIBLELINE:
710 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
711 break;
712
713 case EM_SETREADONLY16:
714 case EM_SETREADONLY:
715 if (wParam) {
716 SetWindowLongW( hwnd, GWL_STYLE,
717 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
718 es->style |= ES_READONLY;
719 } else {
720 SetWindowLongW( hwnd, GWL_STYLE,
721 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
722 es->style &= ~ES_READONLY;
723 }
724 result = 1;
725 break;
726
727 case EM_SETWORDBREAKPROC16:
728 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
729 break;
730 case EM_SETWORDBREAKPROC:
731 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
732 break;
733
734 case EM_GETWORDBREAKPROC16:
735 result = (LRESULT)es->word_break_proc16;
736 break;
737 case EM_GETWORDBREAKPROC:
738 result = (LRESULT)es->word_break_proc;
739 break;
740
741 case EM_GETPASSWORDCHAR16:
742 unicode = FALSE; /* 16-bit message is always ascii */
743 /* fall through */
744 case EM_GETPASSWORDCHAR:
745 {
746 if(unicode)
747 result = es->password_char;
748 else
749 {
750 WCHAR charW = es->password_char;
751 CHAR charA = 0;
752 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
753 result = charA;
754 }
755 break;
756 }
757
758 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
759
760 case EM_SETMARGINS:
761 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
762 break;
763
764 case EM_GETMARGINS:
765 result = MAKELONG(es->left_margin, es->right_margin);
766 break;
767
768 case EM_GETLIMITTEXT:
769 result = es->buffer_limit;
770 break;
771
772 case EM_POSFROMCHAR:
773 if ((INT)wParam >= get_text_length(es)) result = -1;
774 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
775 break;
776
777 case EM_CHARFROMPOS:
778 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
779 break;
780
781 /* End of the EM_ messages which were in numerical order; what order
782 * are these in? vaguely alphabetical?
783 */
784
785 case WM_NCCREATE:
786 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
787 break;
788
789 case WM_DESTROY:
790 result = EDIT_WM_Destroy(es);
791 es = NULL;
792 break;
793
794 case WM_GETDLGCODE:
795 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
796
797 if (es->style & ES_MULTILINE)
798 result |= DLGC_WANTALLKEYS;
799
800 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
801 {
802 int vk = (int)((LPMSG)lParam)->wParam;
803
804 if (es->hwndListBox)
805 {
806 if (vk == VK_RETURN || vk == VK_ESCAPE)
807 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
808 result |= DLGC_WANTMESSAGE;
809 }
810 else
811 {
812 switch (vk)
813 {
814 case VK_ESCAPE:
815 SendMessageW(GetParent(hwnd), WM_CLOSE, 0, 0);
816 break;
817 default:
818 break;
819 }
820 }
821 }
822 break;
823
824 case WM_IME_CHAR:
825 if (!unicode)
826 {
827 WCHAR charW;
828 CHAR strng[2];
829
830 strng[0] = wParam >> 8;
831 strng[1] = wParam & 0xff;
832 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
833 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
834 result = EDIT_WM_Char(es, charW);
835 break;
836 }
837 /* fall through */
838 case WM_CHAR:
839 {
840 WCHAR charW;
841
842 if(unicode)
843 charW = wParam;
844 else
845 {
846 CHAR charA = wParam;
847 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
848 }
849
850 if (es->hwndListBox)
851 {
852 if (charW == VK_RETURN || charW == VK_ESCAPE)
853 {
854 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
855 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
856 break;
857 }
858 }
859 result = EDIT_WM_Char(es, charW);
860 break;
861 }
862
863 case WM_CLEAR:
864 EDIT_WM_Clear(es);
865 break;
866
867 case WM_COMMAND:
868 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
869 break;
870
871 case WM_CONTEXTMENU:
872 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
873 break;
874
875 case WM_COPY:
876 EDIT_WM_Copy(es);
877 break;
878
879 case WM_CREATE:
880 if(unicode)
881 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
882 else
883 {
884 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
885 LPWSTR nameW = NULL;
886 if(nameA)
887 {
888 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
889 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
890 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
891 }
892 result = EDIT_WM_Create(es, nameW);
893 HeapFree(GetProcessHeap(), 0, nameW);
894 }
895 break;
896
897 case WM_CUT:
898 EDIT_WM_Cut(es);
899 break;
900
901 case WM_ENABLE:
902 es->bEnableState = (BOOL) wParam;
903 EDIT_UpdateText(es, NULL, TRUE);
904 break;
905
906 case WM_ERASEBKGND:
907 /* we do the proper erase in EDIT_WM_Paint */
908 result = 1;
909 break;
910
911 case WM_GETFONT:
912 result = (LRESULT)es->font;
913 break;
914
915 case WM_GETTEXT:
916 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
917 break;
918
919 case WM_GETTEXTLENGTH:
920 if (unicode) result = get_text_length(es);
921 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
922 NULL, 0, NULL, NULL );
923 break;
924
925 case WM_HSCROLL:
926 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
927 break;
928
929 case WM_KEYDOWN:
930 result = EDIT_WM_KeyDown(es, (INT)wParam);
931 break;
932
933 case WM_KILLFOCUS:
934 result = EDIT_WM_KillFocus(es);
935 break;
936
937 case WM_LBUTTONDBLCLK:
938 result = EDIT_WM_LButtonDblClk(es);
939 break;
940
941 case WM_LBUTTONDOWN:
942 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
943 break;
944
945 case WM_LBUTTONUP:
946 result = EDIT_WM_LButtonUp(es);
947 break;
948
949 case WM_MBUTTONDOWN:
950 result = EDIT_WM_MButtonDown(es);
951 break;
952
953 case WM_MOUSEMOVE:
954 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
955 break;
956
957 case WM_PRINTCLIENT:
958 case WM_PAINT:
959 EDIT_WM_Paint(es, (HDC)wParam);
960 break;
961
962 case WM_PASTE:
963 EDIT_WM_Paste(es);
964 break;
965
966 case WM_SETFOCUS:
967 EDIT_WM_SetFocus(es);
968 break;
969
970 case WM_SETFONT:
971 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
972 break;
973
974 case WM_SETREDRAW:
975 /* FIXME: actually set an internal flag and behave accordingly */
976 break;
977
978 case WM_SETTEXT:
979 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
980 result = TRUE;
981 break;
982
983 case WM_SIZE:
984 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
985 break;
986
987 case WM_STYLECHANGED:
988 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
989 break;
990
991 case WM_STYLECHANGING:
992 result = 0; /* See EDIT_WM_StyleChanged */
993 break;
994
995 case WM_SYSKEYDOWN:
996 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
997 break;
998
999 case WM_TIMER:
1000 EDIT_WM_Timer(es);
1001 break;
1002
1003 case WM_VSCROLL:
1004 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
1005 break;
1006
1007 case WM_MOUSEWHEEL:
1008 {
1009 int gcWheelDelta = 0;
1010 UINT pulScrollLines = 3;
1011 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1012
1013 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1014 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1015 break;
1016 }
1017 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1018 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1019 {
1020 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1021 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1022 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1023 }
1024 }
1025 break;
1026
1027
1028 /* IME messages to make the edit control IME aware */
1029 case WM_IME_SETCONTEXT:
1030 break;
1031
1032 case WM_IME_STARTCOMPOSITION:
1033 es->composition_start = es->selection_end;
1034 es->composition_len = 0;
1035 break;
1036
1037 case WM_IME_COMPOSITION:
1038 EDIT_ImeComposition(hwnd, lParam, es);
1039 break;
1040
1041 case WM_IME_ENDCOMPOSITION:
1042 if (es->composition_len > 0)
1043 {
1044 static const WCHAR empty_stringW[] = {0};
1045 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1046 es->selection_end = es->selection_start;
1047 es->composition_len= 0;
1048 }
1049 break;
1050
1051 case WM_IME_COMPOSITIONFULL:
1052 break;
1053
1054 case WM_IME_SELECT:
1055 break;
1056
1057 case WM_IME_CONTROL:
1058 break;
1059
1060 default:
1061 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1062 break;
1063 }
1064
1065 if (es) EDIT_UnlockBuffer(es, FALSE);
1066
1067 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1068
1069 return result;
1070 }
1071
1072 /*********************************************************************
1073 *
1074 * EditWndProcW (USER32.@)
1075 */
1076 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1077 {
1078 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1079 }
1080
1081 /*********************************************************************
1082 *
1083 * EditWndProc (USER32.@)
1084 */
1085 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1086 {
1087 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1088 }
1089
1090 /*********************************************************************
1091 *
1092 * EDIT_BuildLineDefs_ML
1093 *
1094 * Build linked list of text lines.
1095 * Lines can end with '\0' (last line), a character (if it is wrapped),
1096 * a soft return '\r\r\n' or a hard return '\r\n'
1097 *
1098 */
1099 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1100 {
1101 HDC dc;
1102 HFONT old_font = 0;
1103 LPWSTR current_position, cp;
1104 INT fw;
1105 LINEDEF *current_line;
1106 LINEDEF *previous_line;
1107 LINEDEF *start_line;
1108 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1109 INT line_count = es->line_count;
1110 INT orig_net_length;
1111 RECT rc;
1112
1113 if (istart == iend && delta == 0)
1114 return;
1115
1116 dc = GetDC(es->hwndSelf);
1117 if (es->font)
1118 old_font = SelectObject(dc, es->font);
1119
1120 previous_line = NULL;
1121 current_line = es->first_line_def;
1122
1123 /* Find starting line. istart must lie inside an existing line or
1124 * at the end of buffer */
1125 do {
1126 if (istart < current_line->index + current_line->length ||
1127 current_line->ending == END_0)
1128 break;
1129
1130 previous_line = current_line;
1131 current_line = current_line->next;
1132 line_index++;
1133 } while (current_line);
1134
1135 if (!current_line) /* Error occurred start is not inside previous buffer */
1136 {
1137 FIXME(" modification occurred outside buffer\n");
1138 ReleaseDC(es->hwndSelf, dc);
1139 return;
1140 }
1141
1142 /* Remember start of modifications in order to calculate update region */
1143 nstart_line = line_index;
1144 nstart_index = current_line->index;
1145
1146 /* We must start to reformat from the previous line since the modifications
1147 * may have caused the line to wrap upwards. */
1148 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1149 {
1150 line_index--;
1151 current_line = previous_line;
1152 }
1153 start_line = current_line;
1154
1155 fw = es->format_rect.right - es->format_rect.left;
1156 current_position = es->text + current_line->index;
1157 do {
1158 if (current_line != start_line)
1159 {
1160 if (!current_line || current_line->index + delta > current_position - es->text)
1161 {
1162 /* The buffer has been expanded, create a new line and
1163 insert it into the link list */
1164 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1165 new_line->next = previous_line->next;
1166 previous_line->next = new_line;
1167 current_line = new_line;
1168 es->line_count++;
1169 }
1170 else if (current_line->index + delta < current_position - es->text)
1171 {
1172 /* The previous line merged with this line so we delete this extra entry */
1173 previous_line->next = current_line->next;
1174 HeapFree(GetProcessHeap(), 0, current_line);
1175 current_line = previous_line->next;
1176 es->line_count--;
1177 continue;
1178 }
1179 else /* current_line->index + delta == current_position */
1180 {
1181 if (current_position - es->text > iend)
1182 break; /* We reached end of line modifications */
1183 /* else recalculate this line */
1184 }
1185 }
1186
1187 current_line->index = current_position - es->text;
1188 orig_net_length = current_line->net_length;
1189
1190 /* Find end of line */
1191 cp = current_position;
1192 while (*cp) {
1193 if (*cp == '\n') break;
1194 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1195 break;
1196 cp++;
1197 }
1198
1199 /* Mark type of line termination */
1200 if (!(*cp)) {
1201 current_line->ending = END_0;
1202 current_line->net_length = strlenW(current_position);
1203 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1204 current_line->ending = END_SOFT;
1205 current_line->net_length = cp - current_position - 1;
1206 } else if (*cp == '\n') {
1207 current_line->ending = END_RICH;
1208 current_line->net_length = cp - current_position;
1209 } else {
1210 current_line->ending = END_HARD;
1211 current_line->net_length = cp - current_position;
1212 }
1213
1214 /* Calculate line width */
1215 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1216 current_position, current_line->net_length,
1217 es->tabs_count, es->tabs));
1218
1219 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1220 if (!(es->style & ES_AUTOHSCROLL)) {
1221 if (current_line->width > fw) {
1222 INT next = 0;
1223 INT prev;
1224 do {
1225 prev = next;
1226 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1227 prev + 1, current_line->net_length, WB_RIGHT);
1228 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1229 current_position, next, es->tabs_count, es->tabs));
1230 } while (current_line->width <= fw);
1231 if (!prev) { /* Didn't find a line break so force a break */
1232 next = 0;
1233 do {
1234 prev = next;
1235 next++;
1236 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1237 current_position, next, es->tabs_count, es->tabs));
1238 } while (current_line->width <= fw);
1239 if (!prev)
1240 prev = 1;
1241 }
1242
1243 /* If the first line we are calculating, wrapped before istart, we must
1244 * adjust istart in order for this to be reflected in the update region. */
1245 if (current_line->index == nstart_index && istart > current_line->index + prev)
1246 istart = current_line->index + prev;
1247 /* else if we are updating the previous line before the first line we
1248 * are re-calculating and it expanded */
1249 else if (current_line == start_line &&
1250 current_line->index != nstart_index && orig_net_length < prev)
1251 {
1252 /* Line expanded due to an upwards line wrap so we must partially include
1253 * previous line in update region */
1254 nstart_line = line_index;
1255 nstart_index = current_line->index;
1256 istart = current_line->index + orig_net_length;
1257 }
1258
1259 current_line->net_length = prev;
1260 current_line->ending = END_WRAP;
1261 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1262 current_line->net_length, es->tabs_count, es->tabs));
1263 }
1264 else if (current_line == start_line &&
1265 current_line->index != nstart_index &&
1266 orig_net_length < current_line->net_length) {
1267 /* The previous line expanded but it's still not as wide as the client rect */
1268 /* The expansion is due to an upwards line wrap so we must partially include
1269 it in the update region */
1270 nstart_line = line_index;
1271 nstart_index = current_line->index;
1272 istart = current_line->index + orig_net_length;
1273 }
1274 }
1275
1276
1277 /* Adjust length to include line termination */
1278 switch (current_line->ending) {
1279 case END_SOFT:
1280 current_line->length = current_line->net_length + 3;
1281 break;
1282 case END_RICH:
1283 current_line->length = current_line->net_length + 1;
1284 break;
1285 case END_HARD:
1286 current_line->length = current_line->net_length + 2;
1287 break;
1288 case END_WRAP:
1289 case END_0:
1290 current_line->length = current_line->net_length;
1291 break;
1292 }
1293 es->text_width = max(es->text_width, current_line->width);
1294 current_position += current_line->length;
1295 previous_line = current_line;
1296 current_line = current_line->next;
1297 line_index++;
1298 } while (previous_line->ending != END_0);
1299
1300 /* Finish adjusting line indexes by delta or remove hanging lines */
1301 if (previous_line->ending == END_0)
1302 {
1303 LINEDEF *pnext = NULL;
1304
1305 previous_line->next = NULL;
1306 while (current_line)
1307 {
1308 pnext = current_line->next;
1309 HeapFree(GetProcessHeap(), 0, current_line);
1310 current_line = pnext;
1311 es->line_count--;
1312 }
1313 }
1314 else if (delta != 0)
1315 {
1316 while (current_line)
1317 {
1318 current_line->index += delta;
1319 current_line = current_line->next;
1320 }
1321 }
1322
1323 /* Calculate rest of modification rectangle */
1324 if (hrgn)
1325 {
1326 HRGN tmphrgn;
1327 /*
1328 * We calculate two rectangles. One for the first line which may have
1329 * an indent with respect to the format rect. The other is a format-width
1330 * rectangle that spans the rest of the lines that changed or moved.
1331 */
1332 rc.top = es->format_rect.top + nstart_line * es->line_height -
1333 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1334 rc.bottom = rc.top + es->line_height;
1335 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1336 rc.left = es->format_rect.left;
1337 else
1338 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1339 es->text + nstart_index, istart - nstart_index,
1340 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1341 rc.right = es->format_rect.right;
1342 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1343
1344 rc.top = rc.bottom;
1345 rc.left = es->format_rect.left;
1346 rc.right = es->format_rect.right;
1347 /*
1348 * If lines were added or removed we must re-paint the remainder of the
1349 * lines since the remaining lines were either shifted up or down.
1350 */
1351 if (line_count < es->line_count) /* We added lines */
1352 rc.bottom = es->line_count * es->line_height;
1353 else if (line_count > es->line_count) /* We removed lines */
1354 rc.bottom = line_count * es->line_height;
1355 else
1356 rc.bottom = line_index * es->line_height;
1357 rc.bottom += es->format_rect.top;
1358 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1359 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1360 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1361 DeleteObject(tmphrgn);
1362 }
1363
1364 if (es->font)
1365 SelectObject(dc, old_font);
1366
1367 ReleaseDC(es->hwndSelf, dc);
1368 }
1369
1370 /*********************************************************************
1371 *
1372 * EDIT_CalcLineWidth_SL
1373 *
1374 */
1375 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1376 {
1377 SIZE size;
1378 LPWSTR text;
1379 HDC dc;
1380 HFONT old_font = 0;
1381
1382 text = EDIT_GetPasswordPointer_SL(es);
1383
1384 dc = GetDC(es->hwndSelf);
1385 if (es->font)
1386 old_font = SelectObject(dc, es->font);
1387
1388 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1389
1390 if (es->font)
1391 SelectObject(dc, old_font);
1392 ReleaseDC(es->hwndSelf, dc);
1393
1394 if (es->style & ES_PASSWORD)
1395 HeapFree(GetProcessHeap(), 0, text);
1396
1397 es->text_width = size.cx;
1398 }
1399
1400 /*********************************************************************
1401 *
1402 * EDIT_CallWordBreakProc
1403 *
1404 * Call appropriate WordBreakProc (internal or external).
1405 *
1406 * Note: The "start" argument should always be an index referring
1407 * to es->text. The actual wordbreak proc might be
1408 * 16 bit, so we can't always pass any 32 bit LPSTR.
1409 * Hence we assume that es->text is the buffer that holds
1410 * the string under examination (we can decide this for ourselves).
1411 *
1412 */
1413 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1414 {
1415 INT ret;
1416
1417 if (es->word_break_proc16) {
1418 HGLOBAL16 hglob16;
1419 SEGPTR segptr;
1420 INT countA;
1421 WORD args[5];
1422 DWORD result;
1423
1424 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1425 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1426 segptr = WOWGlobalLock16(hglob16);
1427 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1428 args[4] = SELECTOROF(segptr);
1429 args[3] = OFFSETOF(segptr);
1430 args[2] = index;
1431 args[1] = countA;
1432 args[0] = action;
1433 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1434 ret = LOWORD(result);
1435 GlobalUnlock16(hglob16);
1436 GlobalFree16(hglob16);
1437 }
1438 else if (es->word_break_proc)
1439 {
1440 if(es->is_unicode)
1441 {
1442 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1443
1444 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1445 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1446 ret = wbpW(es->text + start, index, count, action);
1447 }
1448 else
1449 {
1450 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1451 INT countA;
1452 CHAR *textA;
1453
1454 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1455 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1456 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1457 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1458 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1459 ret = wbpA(textA, index, countA, action);
1460 HeapFree(GetProcessHeap(), 0, textA);
1461 }
1462 }
1463 else
1464 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1465
1466 return ret;
1467 }
1468
1469
1470 /*********************************************************************
1471 *
1472 * EDIT_CharFromPos
1473 *
1474 * Beware: This is not the function called on EM_CHARFROMPOS
1475 * The position _can_ be outside the formatting / client
1476 * rectangle
1477 * The return value is only the character index
1478 *
1479 */
1480 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1481 {
1482 INT index;
1483 HDC dc;
1484 HFONT old_font = 0;
1485 INT x_high = 0, x_low = 0;
1486
1487 if (es->style & ES_MULTILINE) {
1488 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1489 INT line_index = 0;
1490 LINEDEF *line_def = es->first_line_def;
1491 INT low, high;
1492 while ((line > 0) && line_def->next) {
1493 line_index += line_def->length;
1494 line_def = line_def->next;
1495 line--;
1496 }
1497 x += es->x_offset - es->format_rect.left;
1498 if (es->style & ES_RIGHT)
1499 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1500 else if (es->style & ES_CENTER)
1501 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1502 if (x >= line_def->width) {
1503 if (after_wrap)
1504 *after_wrap = (line_def->ending == END_WRAP);
1505 return line_index + line_def->net_length;
1506 }
1507 if (x <= 0) {
1508 if (after_wrap)
1509 *after_wrap = FALSE;
1510 return line_index;
1511 }
1512 dc = GetDC(es->hwndSelf);
1513 if (es->font)
1514 old_font = SelectObject(dc, es->font);
1515 low = line_index;
1516 high = line_index + line_def->net_length + 1;
1517 while (low < high - 1)
1518 {
1519 INT mid = (low + high) / 2;
1520 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1521 if (x_now > x) {
1522 high = mid;
1523 x_high = x_now;
1524 } else {
1525 low = mid;
1526 x_low = x_now;
1527 }
1528 }
1529 if (abs(x_high - x) + 1 <= abs(x_low - x))
1530 index = high;
1531 else
1532 index = low;
1533
1534 if (after_wrap)
1535 *after_wrap = ((index == line_index + line_def->net_length) &&
1536 (line_def->ending == END_WRAP));
1537 } else {
1538 LPWSTR text;
1539 SIZE size;
1540 if (after_wrap)
1541 *after_wrap = FALSE;
1542 x -= es->format_rect.left;
1543 if (!x)
1544 return es->x_offset;
1545
1546 if (!es->x_offset)
1547 {
1548 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1549 if (es->style & ES_RIGHT)
1550 x -= indent;
1551 else if (es->style & ES_CENTER)
1552 x -= indent / 2;
1553 }
1554
1555 text = EDIT_GetPasswordPointer_SL(es);
1556 dc = GetDC(es->hwndSelf);
1557 if (es->font)
1558 old_font = SelectObject(dc, es->font);
1559 if (x < 0)
1560 {
1561 INT low = 0;
1562 INT high = es->x_offset;
1563 while (low < high - 1)
1564 {
1565 INT mid = (low + high) / 2;
1566 GetTextExtentPoint32W( dc, text + mid,
1567 es->x_offset - mid, &size );
1568 if (size.cx > -x) {
1569 low = mid;
1570 x_low = size.cx;
1571 } else {
1572 high = mid;
1573 x_high = size.cx;
1574 }
1575 }
1576 if (abs(x_high + x) <= abs(x_low + x) + 1)
1577 index = high;
1578 else
1579 index = low;
1580 }
1581 else
1582 {
1583 INT low = es->x_offset;
1584 INT high = get_text_length(es) + 1;
1585 while (low < high - 1)
1586 {
1587 INT mid = (low + high) / 2;
1588 GetTextExtentPoint32W( dc, text + es->x_offset,
1589 mid - es->x_offset, &size );
1590 if (size.cx > x) {
1591 high = mid;
1592 x_high = size.cx;
1593 } else {
1594 low = mid;
1595 x_low = size.cx;
1596 }
1597 }
1598 if (abs(x_high - x) <= abs(x_low - x) + 1)
1599 index = high;
1600 else
1601 index = low;
1602 }
1603 if (es->style & ES_PASSWORD)
1604 HeapFree(GetProcessHeap(), 0, text);
1605 }
1606 if (es->font)
1607 SelectObject(dc, old_font);
1608 ReleaseDC(es->hwndSelf, dc);
1609 return index;
1610 }
1611
1612
1613 /*********************************************************************
1614 *
1615 * EDIT_ConfinePoint
1616 *
1617 * adjusts the point to be within the formatting rectangle
1618 * (so CharFromPos returns the nearest _visible_ character)
1619 *
1620 */
1621 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
1622 {
1623 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1624 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1625 }
1626
1627
1628 /*********************************************************************
1629 *
1630 * EDIT_GetLineRect
1631 *
1632 * Calculates the bounding rectangle for a line from a starting
1633 * column to an ending column.
1634 *
1635 */
1636 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1637 {
1638 INT line_index = EDIT_EM_LineIndex(es, line);
1639
1640 if (es->style & ES_MULTILINE)
1641 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1642 else
1643 rc->top = es->format_rect.top;
1644 rc->bottom = rc->top + es->line_height;
1645 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1646 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1647 }
1648
1649
1650 /*********************************************************************
1651 *
1652 * EDIT_GetPasswordPointer_SL
1653 *
1654 * note: caller should free the (optionally) allocated buffer
1655 *
1656 */
1657 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1658 {
1659 if (es->style & ES_PASSWORD) {
1660 INT len = get_text_length(es);
1661 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1662 text[len] = '\0';
1663 while(len) text[--len] = es->password_char;
1664 return text;
1665 } else
1666 return es->text;
1667 }
1668
1669
1670 /*********************************************************************
1671 *
1672 * EDIT_LockBuffer
1673 *
1674 * This acts as a LocalLock16(), but it locks only once. This way
1675 * you can call it whenever you like, without unlocking.
1676 *
1677 * Initially the edit control allocates a HLOCAL32 buffer
1678 * (32 bit linear memory handler). However, 16 bit application
1679 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1680 * handler). From that moment on we have to keep using this 16 bit memory
1681 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1682 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1683 * conversion.
1684 *
1685 */
1686 static void EDIT_LockBuffer(EDITSTATE *es)
1687 {
1688 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
1689 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1690
1691 if (!es->text) {
1692 CHAR *textA = NULL;
1693 UINT countA = 0;
1694 BOOL _16bit = FALSE;
1695
1696 if(es->hloc32W)
1697 {
1698 if(es->hloc32A)
1699 {
1700 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1701 textA = LocalLock(es->hloc32A);
1702 countA = strlen(textA) + 1;
1703 }
1704 else if(es->hloc16)
1705 {
1706 HANDLE16 oldDS = stack16->ds;
1707 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1708 stack16->ds = hInstance;
1709 textA = MapSL(LocalLock16(es->hloc16));
1710 stack16->ds = oldDS;
1711 countA = strlen(textA) + 1;
1712 _16bit = TRUE;
1713 }
1714 }
1715 else {
1716 ERR("no buffer ... please report\n");
1717 return;
1718 }
1719
1720 if(textA)
1721 {
1722 HLOCAL hloc32W_new;
1723 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1724 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1725 if(countW_new > es->buffer_size + 1)
1726 {
1727 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1728 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1729 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1730 if(hloc32W_new)
1731 {
1732 es->hloc32W = hloc32W_new;
1733 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1734 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1735 }
1736 else
1737 WARN("FAILED! Will synchronize partially\n");
1738 }
1739 }
1740
1741 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1742 es->text = LocalLock(es->hloc32W);
1743
1744 if(textA)
1745 {
1746 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1747 if(_16bit)
1748 {
1749 HANDLE16 oldDS = stack16->ds;
1750 stack16->ds = hInstance;
1751 LocalUnlock16(es->hloc16);
1752 stack16->ds = oldDS;
1753 }
1754 else
1755 LocalUnlock(es->hloc32A);
1756 }
1757 }
1758 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1759 es->lock_count++;
1760 }
1761
1762
1763 /*********************************************************************
1764 *
1765 * EDIT_SL_InvalidateText
1766 *
1767 * Called from EDIT_InvalidateText().
1768 * Does the job for single-line controls only.
1769 *
1770 */
1771 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1772 {
1773 RECT line_rect;
1774 RECT rc;
1775
1776 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1777 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1778 EDIT_UpdateText(es, &rc, TRUE);
1779 }
1780
1781
1782 /*********************************************************************
1783 *
1784 * EDIT_ML_InvalidateText
1785 *
1786 * Called from EDIT_InvalidateText().
1787 * Does the job for multi-line controls only.
1788 *
1789 */
1790 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1791 {
1792 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1793 INT sl = EDIT_EM_LineFromChar(es, start);
1794 INT el = EDIT_EM_LineFromChar(es, end);
1795 INT sc;
1796 INT ec;
1797 RECT rc1;
1798 RECT rcWnd;
1799 RECT rcLine;
1800 RECT rcUpdate;
1801 INT l;
1802
1803 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1804 return;
1805
1806 sc = start - EDIT_EM_LineIndex(es, sl);
1807 ec = end - EDIT_EM_LineIndex(es, el);
1808 if (sl < es->y_offset) {
1809 sl = es->y_offset;
1810 sc = 0;
1811 }
1812 if (el > es->y_offset + vlc) {
1813 el = es->y_offset + vlc;
1814 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1815 }
1816 GetClientRect(es->hwndSelf, &rc1);
1817 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1818 if (sl == el) {
1819 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1820 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1821 EDIT_UpdateText(es, &rcUpdate, TRUE);
1822 } else {
1823 EDIT_GetLineRect(es, sl, sc,
1824 EDIT_EM_LineLength(es,
1825 EDIT_EM_LineIndex(es, sl)),
1826 &rcLine);
1827 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1828 EDIT_UpdateText(es, &rcUpdate, TRUE);
1829 for (l = sl + 1 ; l < el ; l++) {
1830 EDIT_GetLineRect(es, l, 0,
1831 EDIT_EM_LineLength(es,
1832 EDIT_EM_LineIndex(es, l)),
1833 &rcLine);
1834 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1835 EDIT_UpdateText(es, &rcUpdate, TRUE);
1836 }
1837 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1838 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1839 EDIT_UpdateText(es, &rcUpdate, TRUE);
1840 }
1841 }
1842
1843
1844 /*********************************************************************
1845 *
1846 * EDIT_InvalidateText
1847 *
1848 * Invalidate the text from offset start up to, but not including,
1849 * offset end. Useful for (re)painting the selection.
1850 * Regions outside the linewidth are not invalidated.
1851 * end == -1 means end == TextLength.
1852 * start and end need not be ordered.
1853 *
1854 */
1855 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1856 {
1857 if (end == start)
1858 return;
1859
1860 if (end == -1)
1861 end = get_text_length(es);
1862
1863 if (end < start) {
1864 INT tmp = start;
1865 start = end;
1866 end = tmp;
1867 }
1868
1869 if (es->style & ES_MULTILINE)
1870 EDIT_ML_InvalidateText(es, start, end);
1871 else
1872 EDIT_SL_InvalidateText(es, start, end);
1873 }
1874
1875
1876 /*********************************************************************
1877 *
1878 * EDIT_MakeFit
1879 *
1880 * Try to fit size + 1 characters in the buffer.
1881 */
1882 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1883 {
1884 HLOCAL hNew32W;
1885
1886 if (size <= es->buffer_size)
1887 return TRUE;
1888
1889 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1890
1891 /* Force edit to unlock it's buffer. es->text now NULL */
1892 EDIT_UnlockBuffer(es, TRUE);
1893
1894 if (es->hloc32W) {
1895 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1896 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1897 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1898 es->hloc32W = hNew32W;
1899 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1900 }
1901 }
1902
1903 EDIT_LockBuffer(es);
1904
1905 if (es->buffer_size < size) {
1906 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1907 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1908 return FALSE;
1909 } else {
1910 TRACE("We now have %d+1\n", es->buffer_size);
1911 return TRUE;
1912 }
1913 }
1914
1915
1916 /*********************************************************************
1917 *
1918 * EDIT_MakeUndoFit
1919 *
1920 * Try to fit size + 1 bytes in the undo buffer.
1921 *
1922 */
1923 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1924 {
1925 UINT alloc_size;
1926
1927 if (size <= es->undo_buffer_size)
1928 return TRUE;
1929
1930 TRACE("trying to ReAlloc to %d+1\n", size);
1931
1932 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1933 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1934 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1935 return TRUE;
1936 }
1937 else
1938 {
1939 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1940 return FALSE;
1941 }
1942 }
1943
1944
1945 /*********************************************************************
1946 *
1947 * EDIT_MoveBackward
1948 *
1949 */
1950 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1951 {
1952 INT e = es->selection_end;
1953
1954 if (e) {
1955 e--;
1956 if ((es->style & ES_MULTILINE) && e &&
1957 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1958 e--;
1959 if (e && (es->text[e - 1] == '\r'))
1960 e--;
1961 }
1962 }
1963 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1964 EDIT_EM_ScrollCaret(es);
1965 }
1966
1967
1968 /*********************************************************************
1969 *
1970 * EDIT_MoveDown_ML
1971 *
1972 * Only for multi line controls
1973 * Move the caret one line down, on a column with the nearest
1974 * x coordinate on the screen (might be a different column).
1975 *
1976 */
1977 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1978 {
1979 INT s = es->selection_start;
1980 INT e = es->selection_end;
1981 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1982 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1983 INT x = (short)LOWORD(pos);
1984 INT y = (short)HIWORD(pos);
1985
1986 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1987 if (!extend)
1988 s = e;
1989 EDIT_EM_SetSel(es, s, e, after_wrap);
1990 EDIT_EM_ScrollCaret(es);
1991 }
1992
1993
1994 /*********************************************************************
1995 *
1996 * EDIT_MoveEnd
1997 *
1998 */
1999 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
2000 {
2001 BOOL after_wrap = FALSE;
2002 INT e;
2003
2004 /* Pass a high value in x to make sure of receiving the end of the line */
2005 if (!ctrl && (es->style & ES_MULTILINE))
2006 e = EDIT_CharFromPos(es, 0x3fffffff,
2007 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2008 else
2009 e = get_text_length(es);
2010 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2011 EDIT_EM_ScrollCaret(es);
2012 }
2013
2014
2015 /*********************************************************************
2016 *
2017 * EDIT_MoveForward
2018 *
2019 */
2020 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2021 {
2022 INT e = es->selection_end;
2023
2024 if (es->text[e]) {
2025 e++;
2026 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2027 if (es->text[e] == '\n')
2028 e++;
2029 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2030 e += 2;
2031 }
2032 }
2033 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2034 EDIT_EM_ScrollCaret(es);
2035 }
2036
2037
2038 /*********************************************************************
2039 *
2040 * EDIT_MoveHome
2041 *
2042 * Home key: move to beginning of line.
2043 *
2044 */
2045 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
2046 {
2047 INT e;
2048
2049 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2050 if (!ctrl && (es->style & ES_MULTILINE))
2051 e = EDIT_CharFromPos(es, -es->x_offset,
2052 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2053 else
2054 e = 0;
2055 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2056 EDIT_EM_ScrollCaret(es);
2057 }
2058
2059
2060 /*********************************************************************
2061 *
2062 * EDIT_MovePageDown_ML
2063 *
2064 * Only for multi line controls
2065 * Move the caret one page down, on a column with the nearest
2066 * x coordinate on the screen (might be a different column).
2067 *
2068 */
2069 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2070 {
2071 INT s = es->selection_start;
2072 INT e = es->selection_end;
2073 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2074 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2075 INT x = (short)LOWORD(pos);
2076 INT y = (short)HIWORD(pos);
2077
2078 e = EDIT_CharFromPos(es, x,
2079 y + (es->format_rect.bottom - es->format_rect.top),
2080 &after_wrap);
2081 if (!extend)
2082 s = e;
2083 EDIT_EM_SetSel(es, s, e, after_wrap);
2084 EDIT_EM_ScrollCaret(es);
2085 }
2086
2087
2088 /*********************************************************************
2089 *
2090 * EDIT_MovePageUp_ML
2091 *
2092 * Only for multi line controls
2093 * Move the caret one page up, on a column with the nearest
2094 * x coordinate on the screen (might be a different column).
2095 *
2096 */
2097 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2098 {
2099 INT s = es->selection_start;
2100 INT e = es->selection_end;
2101 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2102 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2103 INT x = (short)LOWORD(pos);
2104 INT y = (short)HIWORD(pos);
2105
2106 e = EDIT_CharFromPos(es, x,
2107 y - (es->format_rect.bottom - es->format_rect.top),
2108 &after_wrap);
2109 if (!extend)
2110 s = e;
2111 EDIT_EM_SetSel(es, s, e, after_wrap);
2112 EDIT_EM_ScrollCaret(es);
2113 }
2114
2115
2116 /*********************************************************************
2117 *
2118 * EDIT_MoveUp_ML
2119 *
2120 * Only for multi line controls
2121 * Move the caret one line up, on a column with the nearest
2122 * x coordinate on the screen (might be a different column).
2123 *
2124 */
2125 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2126 {
2127 INT s = es->selection_start;
2128 INT e = es->selection_end;
2129 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2130 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2131 INT x = (short)LOWORD(pos);
2132 INT y = (short)HIWORD(pos);
2133
2134 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2135 if (!extend)
2136 s = e;
2137 EDIT_EM_SetSel(es, s, e, after_wrap);
2138 EDIT_EM_ScrollCaret(es);
2139 }
2140
2141
2142 /*********************************************************************
2143 *
2144 * EDIT_MoveWordBackward
2145 *
2146 */
2147 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2148 {
2149 INT s = es->selection_start;
2150 INT e = es->selection_end;
2151 INT l;
2152 INT ll;
2153 INT li;
2154
2155 l = EDIT_EM_LineFromChar(es, e);
2156 ll = EDIT_EM_LineLength(es, e);
2157 li = EDIT_EM_LineIndex(es, l);
2158 if (e - li == 0) {
2159 if (l) {
2160 li = EDIT_EM_LineIndex(es, l - 1);
2161 e = li + EDIT_EM_LineLength(es, li);
2162 }
2163 } else {
2164 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2165 }
2166 if (!extend)
2167 s = e;
2168 EDIT_EM_SetSel(es, s, e, FALSE);
2169 EDIT_EM_ScrollCaret(es);
2170 }
2171
2172
2173 /*********************************************************************
2174 *
2175 * EDIT_MoveWordForward
2176 *
2177 */
2178 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2179 {
2180 INT s = es->selection_start;
2181 INT e = es->selection_end;
2182 INT l;
2183 INT ll;
2184 INT li;
2185
2186 l = EDIT_EM_LineFromChar(es, e);
2187 ll = EDIT_EM_LineLength(es, e);
2188 li = EDIT_EM_LineIndex(es, l);
2189 if (e - li == ll) {
2190 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2191 e = EDIT_EM_LineIndex(es, l + 1);
2192 } else {
2193 e = li + EDIT_CallWordBreakProc(es,
2194 li, e - li + 1, ll, WB_RIGHT);
2195 }
2196 if (!extend)
2197 s = e;
2198 EDIT_EM_SetSel(es, s, e, FALSE);
2199 EDIT_EM_ScrollCaret(es);
2200 }
2201
2202
2203 /*********************************************************************
2204 *
2205 * EDIT_PaintLine
2206 *
2207 */
2208 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2209 {
2210 INT s = es->selection_start;
2211 INT e = es->selection_end;
2212 INT li;
2213 INT ll;
2214 INT x;
2215 INT y;
2216 LRESULT pos;
2217
2218 if (es->style & ES_MULTILINE) {
2219 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2220 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2221 return;
2222 } else if (line)
2223 return;
2224
2225 TRACE("line=%d\n", line);
2226
2227 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2228 x = (short)LOWORD(pos);
2229 y = (short)HIWORD(pos);
2230 li = EDIT_EM_LineIndex(es, line);
2231 ll = EDIT_EM_LineLength(es, li);
2232 s = min(es->selection_start, es->selection_end);
2233 e = max(es->selection_start, es->selection_end);
2234 s = min(li + ll, max(li, s));
2235 e = min(li + ll, max(li, e));
2236 if (rev && (s != e) &&
2237 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2238 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2239 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2240 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2241 } else
2242 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2243 }
2244
2245
2246 /*********************************************************************
2247 *
2248 * EDIT_PaintText
2249 *
2250 */
2251 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2252 {
2253 COLORREF BkColor;
2254 COLORREF TextColor;
2255 LOGFONTW underline_font;
2256 HFONT hUnderline = 0;
2257 HFONT old_font = 0;
2258 INT ret;
2259 INT li;
2260 INT BkMode;
2261 SIZE size;
2262
2263 if (!count)
2264 return 0;
2265 BkMode = GetBkMode(dc);
2266 BkColor = GetBkColor(dc);
2267 TextColor = GetTextColor(dc);
2268 if (rev) {
2269 if (es->composition_len == 0)
2270 {
2271 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2272 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2273 SetBkMode( dc, OPAQUE);
2274 }
2275 else
2276 {
2277 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2278 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2279 underline_font.lfUnderline = TRUE;
2280 hUnderline = CreateFontIndirectW(&underline_font);
2281 old_font = SelectObject(dc,hUnderline);
2282 }
2283 }
2284 li = EDIT_EM_LineIndex(es, line);
2285 if (es->style & ES_MULTILINE) {
2286 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2287 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2288 } else {
2289 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2290 TextOutW(dc, x, y, text + li + col, count);
2291 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2292 ret = size.cx;
2293 if (es->style & ES_PASSWORD)
2294 HeapFree(GetProcessHeap(), 0, text);
2295 }
2296 if (rev) {
2297 if (es->composition_len == 0)
2298 {
2299 SetBkColor(dc, BkColor);
2300 SetTextColor(dc, TextColor);
2301 SetBkMode( dc, BkMode);
2302 }
2303 else
2304 {
2305 if (old_font)
2306 SelectObject(dc,old_font);
2307 if (hUnderline)
2308 DeleteObject(hUnderline);
2309 }
2310 }
2311 return ret;
2312 }
2313
2314
2315 /*********************************************************************
2316 *
2317 * EDIT_SetCaretPos
2318 *
2319 */
2320 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2321 BOOL after_wrap)
2322 {
2323 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2324 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2325 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2326 }
2327
2328
2329 /*********************************************************************
2330 *
2331 * EDIT_AdjustFormatRect
2332 *
2333 * Adjusts the format rectangle for the current font and the
2334 * current client rectangle.
2335 *
2336 */
2337 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2338 {
2339 RECT ClientRect;
2340
2341 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2342 if (es->style & ES_MULTILINE)
2343 {
2344 INT fw, vlc, max_x_offset, max_y_offset;
2345
2346 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2347 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2348
2349 /* correct es->x_offset */
2350 fw = es->format_rect.right - es->format_rect.left;
2351 max_x_offset = es->text_width - fw;
2352 if(max_x_offset < 0) max_x_offset = 0;
2353 if(es->x_offset > max_x_offset)
2354 es->x_offset = max_x_offset;
2355
2356 /* correct es->y_offset */
2357 max_y_offset = es->line_count - vlc;
2358 if(max_y_offset < 0) max_y_offset = 0;
2359 if(es->y_offset > max_y_offset)
2360 es->y_offset = max_y_offset;
2361
2362 /* force scroll info update */
2363 EDIT_UpdateScrollInfo(es);
2364 }
2365 else
2366 /* Windows doesn't care to fix text placement for SL controls */
2367 es->format_rect.bottom = es->format_rect.top + es->line_height;
2368
2369 /* Always stay within the client area */
2370 GetClientRect(es->hwndSelf, &ClientRect);
2371 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2372
2373 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2374 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2375
2376 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2377 }
2378
2379
2380 /*********************************************************************
2381 *
2382 * EDIT_SetRectNP
2383 *
2384 * note: this is not (exactly) the handler called on EM_SETRECTNP
2385 * it is also used to set the rect of a single line control
2386 *
2387 */
2388 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2389 {
2390 LONG_PTR ExStyle;
2391 INT bw, bh;
2392 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2393
2394 CopyRect(&es->format_rect, rc);
2395
2396 if (ExStyle & WS_EX_CLIENTEDGE) {
2397 es->format_rect.left++;
2398 es->format_rect.right--;
2399
2400 if (es->format_rect.bottom - es->format_rect.top
2401 >= es->line_height + 2)
2402 {
2403 es->format_rect.top++;
2404 es->format_rect.bottom--;
2405 }
2406 }
2407 else if (es->style & WS_BORDER) {
2408 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2409 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2410 es->format_rect.left += bw;
2411 es->format_rect.right -= bw;
2412 if (es->format_rect.bottom - es->format_rect.top
2413 >= es->line_height + 2 * bh)
2414 {
2415 es->format_rect.top += bh;
2416 es->format_rect.bottom -= bh;
2417 }
2418 }
2419
2420 es->format_rect.left += es->left_margin;
2421 es->format_rect.right -= es->right_margin;
2422 EDIT_AdjustFormatRect(es);
2423 }
2424
2425
2426 /*********************************************************************
2427 *
2428 * EDIT_UnlockBuffer
2429 *
2430 */
2431 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2432 {
2433
2434 /* Edit window might be already destroyed */
2435 if(!IsWindow(es->hwndSelf))
2436 {
2437 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2438 return;
2439 }
2440
2441 if (!es->lock_count) {
2442 ERR("lock_count == 0 ... please report\n");
2443 return;
2444 }
2445 if (!es->text) {
2446 ERR("es->text == 0 ... please report\n");
2447 return;
2448 }
2449
2450 if (force || (es->lock_count == 1)) {
2451 if (es->hloc32W) {
2452 CHAR *textA = NULL;
2453 UINT countA = 0;
2454 UINT countW = get_text_length(es) + 1;
2455 STACK16FRAME* stack16 = NULL;
2456 HANDLE16 oldDS = 0;
2457
2458 if(es->hloc32A)
2459 {
2460 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2461 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2462 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2463 countA = LocalSize(es->hloc32A);
2464 if(countA_new > countA)
2465 {
2466 HLOCAL hloc32A_new;
2467 UINT alloc_size = ROUND_TO_GROW(countA_new);
2468 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2469 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2470 if(hloc32A_new)
2471 {
2472 es->hloc32A = hloc32A_new;
2473 countA = LocalSize(hloc32A_new);
2474 TRACE("Real new size %d bytes\n", countA);
2475 }
2476 else
2477 WARN("FAILED! Will synchronize partially\n");
2478 }
2479 textA = LocalLock(es->hloc32A);
2480 }
2481 else if(es->hloc16)
2482 {
2483 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2484
2485 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2486 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2487
2488 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2489 oldDS = stack16->ds;
2490 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2491
2492 countA = LocalSize16(es->hloc16);
2493 if(countA_new > countA)
2494 {
2495 HLOCAL16 hloc16_new;
2496 UINT alloc_size = ROUND_TO_GROW(countA_new);
2497 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2498 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2499 if(hloc16_new)
2500 {
2501 es->hloc16 = hloc16_new;
2502 countA = LocalSize16(hloc16_new);
2503 TRACE("Real new size %d bytes\n", countA);
2504 }
2505 else
2506 WARN("FAILED! Will synchronize partially\n");
2507 }
2508 textA = MapSL(LocalLock16(es->hloc16));
2509 }
2510
2511 if(textA)
2512 {
2513 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2514 if(stack16)
2515 LocalUnlock16(es->hloc16);
2516 else
2517 LocalUnlock(es->hloc32A);
2518 }
2519
2520 if (stack16) stack16->ds = oldDS;
2521 LocalUnlock(es->hloc32W);
2522 es->text = NULL;
2523 }
2524 else {
2525 ERR("no buffer ... please report\n");
2526 return;
2527 }
2528 }
2529 es->lock_count--;
2530 }
2531
2532
2533 /*********************************************************************
2534 *
2535 * EDIT_UpdateScrollInfo
2536 *
2537 */
2538 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2539 {
2540 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2541 {
2542 SCROLLINFO si;
2543 si.cbSize = sizeof(SCROLLINFO);
2544 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2545 si.nMin = 0;
2546 si.nMax = es->line_count - 1;
2547 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2548 si.nPos = es->y_offset;
2549 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2550 si.nMin, si.nMax, si.nPage, si.nPos);
2551 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2552 }
2553
2554 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2555 {
2556 SCROLLINFO si;
2557 si.cbSize = sizeof(SCROLLINFO);
2558 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2559 si.nMin = 0;
2560 si.nMax = es->text_width - 1;
2561 si.nPage = es->format_rect.right - es->format_rect.left;
2562 si.nPos = es->x_offset;
2563 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2564 si.nMin, si.nMax, si.nPage, si.nPos);
2565 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2566 }
2567 }
2568
2569 /*********************************************************************
2570 *
2571 * EDIT_WordBreakProc
2572 *
2573 * Find the beginning of words.
2574 * Note: unlike the specs for a WordBreakProc, this function only
2575 * allows to be called without linebreaks between s[0] up to
2576 * s[count - 1]. Remember it is only called
2577 * internally, so we can decide this for ourselves.
2578 *
2579 */
2580 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2581 {
2582 INT ret = 0;
2583
2584 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2585
2586 if(!s) return 0;
2587
2588 switch (action) {
2589 case WB_LEFT:
2590 if (!count)
2591 break;
2592 if (index)
2593 index--;
2594 if (s[index] == ' ') {
2595 while (index && (s[index] == ' '))
2596 index--;
2597 if (index) {
2598 while (index && (s[index] != ' '))
2599 index--;
2600 if (s[index] == ' ')
2601 index++;
2602 }
2603 } else {
2604 while (index && (s[index] != ' '))
2605 index--;
2606 if (s[index] == ' ')
2607 index++;
2608 }
2609 ret = index;
2610 break;
2611 case WB_RIGHT:
2612 if (!count)
2613 break;
2614 if (index)
2615 index--;
2616 if (s[index] == ' ')
2617 while ((index < count) && (s[index] == ' ')) index++;
2618 else {
2619 while (s[index] && (s[index] != ' ') && (index < count))
2620 index++;
2621 while ((s[index] == ' ') && (index < count)) index++;
2622 }
2623 ret = index;
2624 break;
2625 case WB_ISDELIMITER:
2626 ret = (s[index] == ' ');
2627 break;
2628 default:
2629 ERR("unknown action code, please report !\n");
2630 break;
2631 }
2632 return ret;
2633 }
2634
2635
2636 /*********************************************************************
2637 *
2638 * EM_CHARFROMPOS
2639 *
2640 * returns line number (not index) in high-order word of result.
2641 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2642 * to Richedit, not to the edit control. Original documentation is valid.
2643 * FIXME: do the specs mean to return -1 if outside client area or
2644 * if outside formatting rectangle ???
2645 *
2646 */
2647 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2648 {
2649 POINT pt;
2650 RECT rc;
2651 INT index;
2652
2653 pt.x = x;
2654 pt.y = y;
2655 GetClientRect(es->hwndSelf, &rc);
2656 if (!PtInRect(&rc, pt))
2657 return -1;
2658
2659 index = EDIT_CharFromPos(es, x, y, NULL);
2660 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2661 }
2662
2663
2664 /*********************************************************************
2665 *
2666 * EM_FMTLINES
2667 *
2668 * Enable or disable soft breaks.
2669 *
2670 * This means: insert or remove the soft linebreak character (\r\r\n).
2671 * Take care to check if the text still fits the buffer after insertion.
2672 * If not, notify with EN_ERRSPACE.
2673 *
2674 */
2675 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2676 {
2677 es->flags &= ~EF_USE_SOFTBRK;
2678 if (add_eol) {
2679 es->flags |= EF_USE_SOFTBRK;
2680 FIXME("soft break enabled, not implemented\n");
2681 }
2682 return add_eol;
2683 }
2684
2685
2686 /*********************************************************************
2687 *
2688 * EM_GETHANDLE
2689 *
2690 * Hopefully this won't fire back at us.
2691 * We always start with a fixed buffer in the local heap.
2692 * Despite of the documentation says that the local heap is used
2693 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2694 * buffer on the local heap.
2695 *
2696 */
2697 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2698 {
2699 HLOCAL hLocal;
2700
2701 if (!(es->style & ES_MULTILINE))
2702 return 0;
2703
2704 if(es->is_unicode)
2705 hLocal = es->hloc32W;
2706 else
2707 {
2708 if(!es->hloc32A)
2709 {
2710 CHAR *textA;
2711 UINT countA, alloc_size;
2712 TRACE("Allocating 32-bit ANSI alias buffer\n");
2713 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2714 alloc_size = ROUND_TO_GROW(countA);
2715 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2716 {
2717 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2718 return 0;
2719 }
2720 textA = LocalLock(es->hloc32A);
2721 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2722 LocalUnlock(es->hloc32A);
2723 }
2724 hLocal = es->hloc32A;
2725 }
2726
2727 es->flags |= EF_APP_HAS_HANDLE;
2728 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2729 return hLocal;
2730 }
2731
2732
2733 /*********************************************************************
2734 *
2735 * EM_GETHANDLE16
2736 *
2737 * Hopefully this won't fire back at us.
2738 * We always start with a buffer in 32 bit linear memory.
2739 * However, with this message a 16 bit application requests
2740 * a handle of 16 bit local heap memory, where it expects to find
2741 * the text.
2742 * It's a pitty that from this moment on we have to use this
2743 * local heap, because applications may rely on the handle
2744 * in the future.
2745 *
2746 * In this function we'll try to switch to local heap.
2747 */
2748 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2749 {
2750 CHAR *textA;
2751 UINT countA, alloc_size;
2752 STACK16FRAME* stack16;
2753 HANDLE16 oldDS;
2754
2755 if (!(es->style & ES_MULTILINE))
2756 return 0;
2757
2758 if (es->hloc16)
2759 return es->hloc16;
2760
2761 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2762 oldDS = stack16->ds;
2763 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2764
2765 if (!LocalHeapSize16()) {
2766
2767 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2768 ERR("could not initialize local heap\n");
2769 goto done;
2770 }
2771 TRACE("local heap initialized\n");
2772 }
2773
2774 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2775 alloc_size = ROUND_TO_GROW(countA);
2776
2777 TRACE("Allocating 16-bit ANSI alias buffer\n");
2778 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2779 ERR("could not allocate new 16 bit buffer\n");
2780 goto done;
2781 }
2782
2783 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2784 ERR("could not lock new 16 bit buffer\n");
2785 LocalFree16(es->hloc16);
2786 es->hloc16 = 0;
2787 goto done;
2788 }
2789
2790 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2791 LocalUnlock16(es->hloc16);
2792 es->flags |= EF_APP_HAS_HANDLE;
2793
2794 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2795
2796 done:
2797 stack16->ds = oldDS;
2798 return es->hloc16;
2799 }
2800
2801
2802 /*********************************************************************
2803 *
2804 * EM_GETLINE
2805 *
2806 */
2807 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2808 {
2809 LPWSTR src;
2810 INT line_len, dst_len;
2811 INT i;
2812
2813 if (es->style & ES_MULTILINE) {
2814 if (line >= es->line_count)
2815 return 0;
2816 } else
2817 line = 0;
2818 i = EDIT_EM_LineIndex(es, line);
2819 src = es->text + i;
2820 line_len = EDIT_EM_LineLength(es, i);
2821 dst_len = *(WORD *)dst;
2822 if(unicode)
2823 {
2824 if(dst_len <= line_len)
2825 {
2826 memcpy(dst, src, dst_len * sizeof(WCHAR));
2827 return dst_len;
2828 }
2829 else /* Append 0 if enough space */
2830 {
2831 memcpy(dst, src, line_len * sizeof(WCHAR));
2832 dst[line_len] = 0;
2833 return line_len;
2834 }
2835 }
2836 else
2837 {
2838 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2839 if(!ret && line_len) /* Insufficient buffer size */
2840 return dst_len;
2841 if(ret < dst_len) /* Append 0 if enough space */
2842 ((LPSTR)dst)[ret] = 0;
2843 return ret;
2844 }
2845 }
2846
2847
2848 /*********************************************************************
2849 *
2850 * EM_GETSEL
2851 *
2852 */
2853 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2854 {
2855 UINT s = es->selection_start;
2856 UINT e = es->selection_end;
2857
2858 ORDER_UINT(s, e);
2859 if (start)
2860 *start = s;
2861 if (end)
2862 *end = e;
2863 return MAKELONG(s, e);
2864 }
2865
2866
2867 /*********************************************************************
2868 *
2869 * EM_GETTHUMB
2870 *
2871 * FIXME: is this right ? (or should it be only VSCROLL)
2872 * (and maybe only for edit controls that really have their
2873 * own scrollbars) (and maybe only for multiline controls ?)
2874 * All in all: very poorly documented
2875 *
2876 */
2877 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2878 {
2879 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2880 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2881 }
2882
2883
2884 /*********************************************************************
2885 *
2886 * EM_LINEFROMCHAR
2887 *
2888 */
2889 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2890 {
2891 INT line;
2892 LINEDEF *line_def;
2893
2894 if (!(es->style & ES_MULTILINE))
2895 return 0;
2896 if (index > (INT)get_text_length(es))
2897 return es->line_count - 1;
2898 if (index == -1)
2899 index = min(es->selection_start, es->selection_end);
2900
2901 line = 0;
2902 line_def = es->first_line_def;
2903 index -= line_def->length;
2904 while ((index >= 0) && line_def->next) {
2905 line++;
2906 line_def = line_def->next;
2907 index -= line_def->length;
2908 }
2909 return line;
2910 }
2911
2912
2913 /*********************************************************************
2914 *
2915 * EM_LINEINDEX
2916 *
2917 */
2918 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
2919 {
2920 INT line_index;
2921 const LINEDEF *line_def;
2922
2923 if (!(es->style & ES_MULTILINE))
2924 return 0;
2925 if (line >= es->line_count)
2926 return -1;
2927
2928 line_index = 0;
2929 line_def = es->first_line_def;
2930 if (line == -1) {
2931 INT index = es->selection_end - line_def->length;
2932 while ((index >= 0) && line_def->next) {
2933 line_index += line_def->length;
2934 line_def = line_def->next;
2935 index -= line_def->length;
2936 }
2937 } else {
2938 while (line > 0) {
2939 line_index += line_def->length;
2940 line_def = line_def->next;
2941 line--;
2942 }
2943 }
2944 return line_index;
2945 }
2946
2947
2948 /*********************************************************************
2949 *
2950 * EM_LINELENGTH
2951 *
2952 */
2953 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2954 {
2955 LINEDEF *line_def;
2956
2957 if (!(es->style & ES_MULTILINE))
2958 return get_text_length(es);
2959
2960 if (index == -1) {
2961 /* get the number of remaining non-selected chars of selected lines */
2962 INT32 l; /* line number */
2963 INT32 li; /* index of first char in line */
2964 INT32 count;
2965 l = EDIT_EM_LineFromChar(es, es->selection_start);
2966 /* # chars before start of selection area */
2967 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2968 l = EDIT_EM_LineFromChar(es, es->selection_end);
2969 /* # chars after end of selection */
2970 li = EDIT_EM_LineIndex(es, l);
2971 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2972 return count;
2973 }
2974 line_def = es->first_line_def;
2975 index -= line_def->length;
2976 while ((index >= 0) && line_def->next) {
2977 line_def = line_def->next;
2978 index -= line_def->length;
2979 }
2980 return line_def->net_length;
2981 }
2982
2983
2984 /*********************************************************************
2985 *
2986 * EM_LINESCROLL
2987 *
2988 * NOTE: dx is in average character widths, dy - in lines;
2989 *
2990 */
2991 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2992 {
2993 if (!(es->style & ES_MULTILINE))
2994 return FALSE;
2995
2996 dx *= es->char_width;
2997 return EDIT_EM_LineScroll_internal(es, dx, dy);
2998 }
2999
3000 /*********************************************************************
3001 *
3002 * EDIT_EM_LineScroll_internal
3003 *
3004 * Version of EDIT_EM_LineScroll for internal use.
3005 * It doesn't refuse if ES_MULTILINE is set and assumes that
3006 * dx is in pixels, dy - in lines.
3007 *
3008 */
3009 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
3010 {
3011 INT nyoff;
3012 INT x_offset_in_pixels;
3013 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3014 es->line_height;
3015
3016 if (es->style & ES_MULTILINE)
3017 {
3018 x_offset_in_pixels = es->x_offset;
3019 }
3020 else
3021 {
3022 dy = 0;
3023 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3024 }
3025
3026 if (-dx > x_offset_in_pixels)
3027 dx = -x_offset_in_pixels;
3028 if (dx > es->text_width - x_offset_in_pixels)
3029 dx = es->text_width - x_offset_in_pixels;
3030 nyoff = max(0, es->y_offset + dy);
3031 if (nyoff >= es->line_count - lines_per_page)
3032 nyoff = max(0, es->line_count - lines_per_page);
3033 dy = (es->y_offset - nyoff) * es->line_height;
3034 if (dx || dy) {
3035 RECT rc1;
3036 RECT rc;
3037
3038 es->y_offset = nyoff;
3039 if(es->style & ES_MULTILINE)
3040 es->x_offset += dx;
3041 else
3042 es->x_offset += dx / es->char_width;
3043
3044 GetClientRect(es->hwndSelf, &rc1);
3045 IntersectRect(&rc, &rc1, &es->format_rect);
3046 ScrollWindowEx(es->hwndSelf, -dx, dy,
3047 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3048 /* force scroll info update */
3049 EDIT_UpdateScrollInfo(es);
3050 }
3051 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3052 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3053 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3054 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3055 return TRUE;
3056 }
3057
3058
3059 /*********************************************************************
3060 *
3061 * EM_POSFROMCHAR
3062 *
3063 */
3064 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3065 {
3066 INT len = get_text_length(es);
3067 INT l;
3068 INT li;
3069 INT x;
3070 INT y = 0;
3071 INT w;
3072 INT lw = 0;
3073 INT ll = 0;
3074 HDC dc;
3075 HFONT old_font = 0;
3076 SIZE size;
3077 LINEDEF *line_def;
3078
3079 index = min(index, len);
3080 dc = GetDC(es->hwndSelf);
3081 if (es->font)
3082 old_font = SelectObject(dc, es->font);
3083 if (es->style & ES_MULTILINE) {
3084 l = EDIT_EM_LineFromChar(es, index);
3085 y = (l - es->y_offset) * es->line_height;
3086 li = EDIT_EM_LineIndex(es, l);
3087 if (after_wrap && (li == index) && l) {
3088 INT l2 = l - 1;
3089 line_def = es->first_line_def;
3090 while (l2) {
3091 line_def = line_def->next;
3092 l2--;
3093 }
3094 if (line_def->ending == END_WRAP) {
3095 l--;
3096 y -= es->line_height;
3097 li = EDIT_EM_LineIndex(es, l);
3098 }
3099 }
3100
3101 line_def = es->first_line_def;
3102 while (line_def->index != li)
3103 line_def = line_def->next;
3104
3105 ll = line_def->net_length;
3106 lw = line_def->width;
3107
3108 w = es->format_rect.right - es->format_rect.left;
3109 if (es->style & ES_RIGHT)
3110 {
3111 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3112 es->tabs_count, es->tabs)) - es->x_offset;
3113 x = w - x;
3114 }
3115 else if (es->style & ES_CENTER)
3116 {
3117 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3118 es->tabs_count, es->tabs)) - es->x_offset;
3119 x += (w - lw) / 2;
3120 }
3121 else /* ES_LEFT */
3122 {
3123 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3124 es->tabs_count, es->tabs)) - es->x_offset;
3125 }
3126 } else {
3127 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3128 if (index < es->x_offset) {
3129 GetTextExtentPoint32W(dc, text + index,
3130 es->x_offset - index, &size);
3131 x = -size.cx;
3132 } else {
3133 GetTextExtentPoint32W(dc, text + es->x_offset,
3134 index - es->x_offset, &size);
3135 x = size.cx;
3136
3137 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3138 {
3139 w = es->format_rect.right - es->format_rect.left;
3140 if (w > es->text_width)
3141 {
3142 if (es->style & ES_RIGHT)
3143 x += w - es->text_width;
3144 else if (es->style & ES_CENTER)
3145 x += (w - es->text_width) / 2;
3146 }
3147 }
3148 }
3149 y = 0;
3150 if (es->style & ES_PASSWORD)
3151 HeapFree(GetProcessHeap(), 0, text);
3152 }
3153 x += es->format_rect.left;
3154 y += es->format_rect.top;
3155 if (es->font)
3156 SelectObject(dc, old_font);
3157 ReleaseDC(es->hwndSelf, dc);
3158 return MAKELONG((INT16)x, (INT16)y);
3159 }
3160
3161
3162 /*********************************************************************
3163 *
3164 * EM_REPLACESEL
3165 *
3166 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3167 *
3168 */
3169 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3170 {
3171 UINT strl = strlenW(lpsz_replace);
3172 UINT tl = get_text_length(es);
3173 UINT utl;
3174 UINT s;
3175 UINT e;
3176 UINT i;
3177 UINT size;
3178 LPWSTR p;
3179 HRGN hrgn = 0;
3180 LPWSTR buf = NULL;
3181 UINT bufl = 0;
3182
3183 TRACE("%s, can_undo %d, send_update %d\n",
3184 debugstr_w(lpsz_replace), can_undo, send_update);
3185
3186 s = es->selection_start;
3187 e = es->selection_end;
3188
3189 if ((s == e) && !strl)
3190 return;
3191
3192 ORDER_UINT(s, e);
3193
3194 size = tl - (e - s) + strl;
3195 if (!size)
3196 es->text_width = 0;
3197
3198 /* Issue the EN_MAXTEXT notification and continue with replacing text
3199 * such that buffer limit is honored. */
3200 if ((honor_limit) && (size > es->buffer_limit)) {
3201 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3202 /* Buffer limit can be smaller than the actual length of text in combobox */
3203 if (es->buffer_limit < (tl - (e-s)))
3204 strl = 0;
3205 else
3206 strl = es->buffer_limit - (tl - (e-s));
3207 }
3208
3209 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3210 return;
3211
3212 if (e != s) {
3213 /* there is something to be deleted */
3214 TRACE("deleting stuff.\n");
3215 bufl = e - s;
3216 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3217 if (!buf) return;
3218 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3219 buf[bufl] = 0; /* ensure 0 termination */
3220 /* now delete */
3221 strcpyW(es->text + s, es->text + e);
3222 text_buffer_changed(es);
3223 }
3224 if (strl) {
3225 /* there is an insertion */
3226 tl = get_text_length(es);
3227 TRACE("inserting stuff (tl %d, strl %d, selstart %d (%s), text %s)\n", tl, strl, s, debugstr_w(es->text + s), debugstr_w(es->text));
3228 for (p = es->text + tl ; p >= es->text + s ; p--)
3229 p[strl] = p[0];
3230 for (i = 0 , p = es->text + s ; i < strl ; i++)
3231 p[i] = lpsz_replace[i];
3232 if(es->style & ES_UPPERCASE)
3233 CharUpperBuffW(p, strl);
3234 else if(es->style & ES_LOWERCASE)
3235 CharLowerBuffW(p, strl);
3236 text_buffer_changed(es);
3237 }
3238 if (es->style & ES_MULTILINE)
3239 {
3240 INT st = min(es->selection_start, es->selection_end);
3241 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3242
3243 hrgn = CreateRectRgn(0, 0, 0, 0);
3244 EDIT_BuildLineDefs_ML(es, st, st + strl,
3245 strl - abs(es->selection_end - es->selection_start), hrgn);
3246 /* if text is too long undo all changes */
3247 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3248 if (strl)
3249 strcpyW(es->text + e, es->text + e + strl);
3250 if (e != s)
3251 for (i = 0 , p = es->text ; i < e - s ; i++)
3252 p[i + s] = buf[i];
3253 text_buffer_changed(es);
3254 EDIT_BuildLineDefs_ML(es, s, e,
3255 abs(es->selection_end - es->selection_start) - strl, hrgn);
3256 strl = 0;
3257 e = s;
3258 hrgn = CreateRectRgn(0, 0, 0, 0);
3259 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3260 }
3261 }
3262 else {
3263 INT fw = es->format_rect.right - es->format_rect.left;
3264 EDIT_CalcLineWidth_SL(es);
3265 /* remove chars that don't fit */
3266 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3267 while ((es->text_width > fw) && s + strl >= s) {
3268 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3269 strl--;
3270 EDIT_CalcLineWidth_SL(es);
3271 }
3272 text_buffer_changed(es);
3273 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3274 }
3275 }
3276
3277 if (e != s) {
3278 if (can_undo) {
3279 utl = strlenW(es->undo_text);
3280 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3281 /* undo-buffer is extended to the right */
3282 EDIT_MakeUndoFit(es, utl + e - s);
3283 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3284 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3285 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3286 /* undo-buffer is extended to the left */
3287 EDIT_MakeUndoFit(es, utl + e - s);
3288 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3289 p[e - s] = p[0];
3290 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3291 p[i] = buf[i];
3292 es->undo_position = s;
3293 } else {
3294 /* new undo-buffer */
3295 EDIT_MakeUndoFit(es, e - s);
3296 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3297 es->undo_text[e - s] = 0; /* ensure 0 termination */
3298 es->undo_position = s;
3299 }
3300 /* any deletion makes the old insertion-undo invalid */
3301 es->undo_insert_count = 0;
3302 } else
3303 EDIT_EM_EmptyUndoBuffer(es);
3304 }
3305 if (strl) {
3306 if (can_undo) {
3307 if ((s == es->undo_position) ||
3308 ((es->undo_insert_count) &&
3309 (s == es->undo_position + es->undo_insert_count)))
3310 /*
3311 * insertion is new and at delete position or
3312 * an extension to either left or right
3313 */
3314 es->undo_insert_count += strl;
3315 else {
3316 /* new insertion undo */
3317 es->undo_position = s;
3318 es->undo_insert_count = strl;
3319 /* new insertion makes old delete-buffer invalid */
3320 *es->undo_text = '\0';
3321 }
3322 } else
3323 EDIT_EM_EmptyUndoBuffer(es);
3324 }
3325
3326 if (bufl)
3327 HeapFree(GetProcessHeap(), 0, buf);
3328
3329 s += strl;
3330
3331 /* If text has been deleted and we're right or center aligned then scroll rightward */
3332 if (es->style & (ES_RIGHT | ES_CENTER))
3333 {
3334 INT delta = strl - abs(es->selection_end - es->selection_start);
3335
3336 if (delta < 0 && es->x_offset)
3337 {
3338 if (abs(delta) > es->x_offset)
3339 es->x_offset = 0;
3340 else
3341 es->x_offset += delta;
3342 }
3343 }
3344
3345 EDIT_EM_SetSel(es, s, s, FALSE);
3346 es->flags |= EF_MODIFIED;
3347 if (send_update) es->flags |= EF_UPDATE;
3348 if (hrgn)
3349 {
3350 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3351 DeleteObject(hrgn);
3352 }
3353 else
3354 EDIT_UpdateText(es, NULL, TRUE);
3355
3356 EDIT_EM_ScrollCaret(es);
3357
3358 /* force scroll info update */
3359 EDIT_UpdateScrollInfo(es);
3360
3361
3362 if(send_update || (es->flags & EF_UPDATE))
3363 {
3364 es->flags &= ~EF_UPDATE;
3365 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3366 }
3367 }
3368
3369
3370 /*********************************************************************
3371 *
3372 * EM_SCROLL
3373 *
3374 */
3375 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3376 {
3377 INT dy;
3378
3379 if (!(es->style & ES_MULTILINE))
3380 return (LRESULT)FALSE;
3381
3382 dy = 0;
3383
3384 switch (action) {
3385 case SB_LINEUP:
3386 if (es->y_offset)
3387 dy = -1;
3388 break;
3389 case SB_LINEDOWN:
3390 if (es->y_offset < es->line_count - 1)
3391 dy = 1;
3392 break;
3393 case SB_PAGEUP:
3394 if (es->y_offset)
3395 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3396 break;
3397 case SB_PAGEDOWN:
3398 if (es->y_offset < es->line_count - 1)
3399 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3400 break;
3401 default:
3402 return (LRESULT)FALSE;
3403 }
3404 if (dy) {
3405 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3406 /* check if we are going to move too far */
3407 if(es->y_offset + dy > es->line_count - vlc)
3408 dy = es->line_count - vlc - es->y_offset;
3409
3410 /* Notification is done in EDIT_EM_LineScroll */
3411 if(dy)
3412 EDIT_EM_LineScroll(es, 0, dy);
3413 }
3414 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3415 }
3416
3417
3418 /*********************************************************************
3419 *
3420 * EM_SCROLLCARET
3421 *
3422 */
3423 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3424 {
3425 if (es->style & ES_MULTILINE) {
3426 INT l;
3427 INT vlc;
3428 INT ww;
3429 INT cw = es->char_width;
3430 INT x;
3431 INT dy = 0;
3432 INT dx = 0;
3433
3434 l = EDIT_EM_LineFromChar(es, es->selection_end);
3435 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3436 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3437 if (l >= es->y_offset + vlc)
3438 dy = l - vlc + 1 - es->y_offset;
3439 if (l < es->y_offset)
3440 dy = l - es->y_offset;
3441 ww = es->format_rect.right - es->format_rect.left;
3442 if (x < es->format_rect.left)
3443 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3444 if (x > es->format_rect.right)
3445 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3446 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3447 {
3448 /* check if we are going to move too far */
3449 if(es->x_offset + dx + ww > es->text_width)
3450 dx = es->text_width - ww - es->x_offset;
3451 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3452 EDIT_EM_LineScroll_internal(es, dx, dy);
3453 }
3454 } else {
3455 INT x;
3456 INT goal;
3457 INT format_width;
3458
3459 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3460 format_width = es->format_rect.right - es->format_rect.left;
3461 if (x < es->format_rect.left) {
3462 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3463 do {
3464 es->x_offset--;
3465 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3466 } while ((x < goal) && es->x_offset);
3467 /* FIXME: use ScrollWindow() somehow to improve performance */
3468 EDIT_UpdateText(es, NULL, TRUE);
3469 } else if (x > es->format_rect.right) {
3470 INT x_last;
3471 INT len = get_text_length(es);
3472 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3473 do {
3474 es->x_offset++;
3475 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3476 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3477 } while ((x > goal) && (x_last > es->format_rect.right));
3478 /* FIXME: use ScrollWindow() somehow to improve performance */
3479 EDIT_UpdateText(es, NULL, TRUE);
3480 }
3481 }
3482
3483 if(es->flags & EF_FOCUSED)
3484 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3485 }
3486
3487
3488 /*********************************************************************
3489 *
3490 * EM_SETHANDLE
3491 *
3492 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3493 *
3494 */
3495 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3496 {
3497 if (!(es->style & ES_MULTILINE))
3498 return;
3499
3500 if (!hloc) {
3501 WARN("called with NULL handle\n");
3502 return;
3503 }
3504
3505 EDIT_UnlockBuffer(es, TRUE);
3506
3507 if(es->hloc16)
3508 {
3509 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3510 HANDLE16 oldDS = stack16->ds;
3511
3512 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3513 LocalFree16(es->hloc16);
3514 stack16->ds = oldDS;
3515 es->hloc16 = 0;
3516 }
3517
3518 if(es->is_unicode)
3519 {
3520 if(es->hloc32A)
3521 {
3522 LocalFree(es->hloc32A);
3523 es->hloc32A = NULL;
3524 }
3525 es->hloc32W = hloc;
3526 }
3527 else
3528 {
3529 INT countW, countA;
3530 HLOCAL hloc32W_new;
3531 WCHAR *textW;
3532 CHAR *textA;
3533
3534 countA = LocalSize(hloc);
3535 textA = LocalLock(hloc);
3536 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3537 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3538 {
3539 ERR("Could not allocate new unicode buffer\n");
3540 return;
3541 }
3542 textW = LocalLock(hloc32W_new);
3543 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3544 LocalUnlock(hloc32W_new);
3545 LocalUnlock(hloc);
3546
3547 if(es->hloc32W)
3548 LocalFree(es->hloc32W);
3549
3550 es->hloc32W = hloc32W_new;
3551 es->hloc32A = hloc;
3552 }
3553
3554 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3555
3556 es->flags |= EF_APP_HAS_HANDLE;
3557 EDIT_LockBuffer(es);
3558
3559 es->x_offset = es->y_offset = 0;
3560 es->selection_start = es->selection_end = 0;
3561 EDIT_EM_EmptyUndoBuffer(es);
3562 es->flags &= ~EF_MODIFIED;
3563 es->flags &= ~EF_UPDATE;
3564 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3565 EDIT_UpdateText(es, NULL, TRUE);
3566 EDIT_EM_ScrollCaret(es);
3567 /* force scroll info update */
3568 EDIT_UpdateScrollInfo(es);
3569 }
3570
3571
3572 /*********************************************************************
3573 *
3574 * EM_SETHANDLE16
3575 *
3576 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3577 *
3578 */
3579 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3580 {
3581 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3582 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3583 HANDLE16 oldDS = stack16->ds;
3584 INT countW, countA;
3585 HLOCAL hloc32W_new;
3586 WCHAR *textW;
3587 CHAR *textA;
3588
3589 if (!(es->style & ES_MULTILINE))
3590 return;
3591
3592 if (!hloc) {
3593 WARN("called with NULL handle\n");
3594 return;
3595 }
3596
3597 EDIT_UnlockBuffer(es, TRUE);
3598
3599 if(es->hloc32A)
3600 {
3601 LocalFree(es->hloc32A);
3602 es->hloc32A = NULL;
3603 }
3604
3605 stack16->ds = hInstance;
3606 countA = LocalSize16(hloc);
3607 textA = MapSL(LocalLock16(hloc));
3608 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3609 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3610 {
3611 ERR("Could not allocate new unicode buffer\n");
3612 return;
3613 }
3614 textW = LocalLock(hloc32W_new);
3615 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3616 LocalUnlock(hloc32W_new);
3617 LocalUnlock16(hloc);
3618 stack16->ds = oldDS;
3619
3620 if(es->hloc32W)
3621 LocalFree(es->hloc32W);
3622
3623 es->hloc32W = hloc32W_new;
3624 es->hloc16 = hloc;
3625
3626 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3627
3628 es->flags |= EF_APP_HAS_HANDLE;
3629 EDIT_LockBuffer(es);
3630
3631 es->x_offset = es->y_offset = 0;
3632 es->selection_start = es->selection_end = 0;
3633 EDIT_EM_EmptyUndoBuffer(es);
3634 es->flags &= ~EF_MODIFIED;
3635 es->flags &= ~EF_UPDATE;
3636 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3637 EDIT_UpdateText(es, NULL, TRUE);
3638 EDIT_EM_ScrollCaret(es);
3639 /* force scroll info update */
3640 EDIT_UpdateScrollInfo(es);
3641 }
3642
3643
3644 /*********************************************************************
3645 *
3646 * EM_SETLIMITTEXT
3647 *
3648 * NOTE: this version currently implements WinNT limits
3649 *
3650 */
3651 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
3652 {
3653 if (!limit) limit = ~0u;
3654 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
3655 es->buffer_limit = limit;
3656 }
3657
3658
3659 /*********************************************************************
3660 *
3661 * EM_SETMARGINS
3662 *
3663 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3664 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3665 * margin according to the textmetrics of the current font.
3666 *
3667 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3668 * of the char's width as the margin, but this is not how Windows handles this.
3669 * For all other fonts Windows sets the margins to zero.
3670 *
3671 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3672 * edit control is equal to or larger than a certain size.
3673 * Interestingly if one subtracts both the left and right margins from
3674 * this size one always seems to get an even number. The extents of
3675 * the (four character) string "'**'" match this quite closely, so
3676 * we'll use this until we come up with a better idea.
3677 */
3678 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3679 {
3680 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3681 SIZE sz;
3682
3683 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3684 return sz.cx + left + right;
3685 }
3686
3687 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3688 WORD left, WORD right, BOOL repaint)
3689 {
3690 TEXTMETRICW tm;
3691 INT default_left_margin = 0; /* in pixels */
3692 INT default_right_margin = 0; /* in pixels */
3693
3694 /* Set the default margins depending on the font */
3695 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3696 HDC dc = GetDC(es->hwndSelf);
3697 HFONT old_font = SelectObject(dc, es->font);
3698 GetTextMetricsW(dc, &tm);
3699 /* The default margins are only non zero for TrueType or Vector fonts */
3700 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3701 int min_size;
3702 RECT rc;
3703 /* This must be calculated more exactly! But how? */
3704 default_left_margin = tm.tmAveCharWidth / 2;
3705 default_right_margin = tm.tmAveCharWidth / 2;
3706 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3707 GetClientRect(es->hwndSelf, &rc);
3708 if(rc.right - rc.left < min_size) {
3709 default_left_margin = es->left_margin;
3710 default_right_margin = es->right_margin;
3711 }
3712 }
3713 SelectObject(dc, old_font);
3714 ReleaseDC(es->hwndSelf, dc);
3715 }
3716
3717 if (action & EC_LEFTMARGIN) {
3718 es->format_rect.left -= es->left_margin;
3719 if (left != EC_USEFONTINFO)
3720 es->left_margin = left;
3721 else
3722 es->left_margin = default_left_margin;
3723 es->format_rect.left += es->left_margin;
3724 }
3725
3726 if (action & EC_RIGHTMARGIN) {
3727 es->format_rect.right += es->right_margin;
3728 if (right != EC_USEFONTINFO)
3729 es->right_margin = right;
3730 else
3731 es->right_margin = default_right_margin;
3732 es->format_rect.right -= es->right_margin;
3733 }
3734
3735 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3736 EDIT_AdjustFormatRect(es);
3737 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3738 }
3739
3740 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3741 }
3742
3743
3744 /*********************************************************************
3745 *
3746 * EM_SETPASSWORDCHAR
3747 *
3748 */
3749 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3750 {
3751 LONG style;
3752
3753 if (es->style & ES_MULTILINE)
3754 return;
3755
3756 if (es->password_char == c)
3757 return;
3758
3759 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3760 es->password_char = c;
3761 if (c) {
3762 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3763 es->style |= ES_PASSWORD;
3764 } else {
3765 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3766 es->style &= ~ES_PASSWORD;
3767 }
3768 EDIT_UpdateText(es, NULL, TRUE);
3769 }
3770
3771
3772 /*********************************************************************
3773 *
3774 * EDIT_EM_SetSel
3775 *
3776 * note: unlike the specs say: the order of start and end
3777 * _is_ preserved in Windows. (i.e. start can be > end)
3778 * In other words: this handler is OK
3779 *
3780 */
3781 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3782 {
3783 UINT old_start = es->selection_start;
3784 UINT old_end = es->selection_end;
3785 UINT len = get_text_length(es);
3786
3787 if (start == (UINT)-1) {
3788 start = es->selection_end;
3789 end = es->selection_end;
3790 } else {
3791 start = min(start, len);
3792 end = min(end, len);
3793 }
3794 es->selection_start = start;
3795 es->selection_end = end;
3796 if (after_wrap)
3797 es->flags |= EF_AFTER_WRAP;
3798 else
3799 es->flags &= ~EF_AFTER_WRAP;
3800 /* Compute the necessary invalidation region. */
3801 /* Note that we don't need to invalidate regions which have
3802 * "never" been selected, or those which are "still" selected.
3803 * In fact, every time we hit a selection boundary, we can
3804 * *toggle* whether we need to invalidate. Thus we can optimize by
3805 * *sorting* the interval endpoints. Let's assume that we sort them
3806 * in this order:
3807 * start <= end <= old_start <= old_end
3808 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
3809 * in 5 comparisons; i.e. it is impossible to do better than the
3810 * following: */
3811 ORDER_UINT(end, old_end);
3812 ORDER_UINT(start, old_start);
3813 ORDER_UINT(old_start, old_end);
3814 ORDER_UINT(start, end);
3815 /* Note that at this point 'end' and 'old_start' are not in order, but
3816 * start is definitely the min. and old_end is definitely the max. */
3817 if (end != old_start)
3818 {
3819 /*
3820 * One can also do
3821 * ORDER_UINT32(end, old_start);
3822 * EDIT_InvalidateText(es, start, end);
3823 * EDIT_InvalidateText(es, old_start, old_end);
3824 * in place of the following if statement.
3825 * (That would complete the optimal five-comparison four-element sort.)
3826 */
3827 if (old_start > end )
3828 {
3829 EDIT_InvalidateText(es, start, end);
3830 EDIT_InvalidateText(es, old_start, old_end);
3831 }
3832 else
3833 {
3834 EDIT_InvalidateText(es, start, old_start);
3835 EDIT_InvalidateText(es, end, old_end);
3836 }
3837 }
3838 else EDIT_InvalidateText(es, start, old_end);
3839 }
3840
3841
3842 /*********************************************************************
3843 *
3844 * EM_SETTABSTOPS
3845 *
3846 */
3847 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3848 {
3849 if (!(es->style & ES_MULTILINE))
3850 return FALSE;
3851 HeapFree(GetProcessHeap(), 0, es->tabs);
3852 es->tabs_count = count;
3853 if (!count)
3854 es->tabs = NULL;
3855 else {
3856 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3857 memcpy(es->tabs, tabs, count * sizeof(INT));
3858 }
3859 return TRUE;
3860 }
3861
3862
3863 /*********************************************************************
3864 *
3865 * EM_SETTABSTOPS16
3866 *
3867 */
3868 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs)
3869 {
3870 if (!(es->style & ES_MULTILINE))
3871 return FALSE;
3872 HeapFree(GetProcessHeap(), 0, es->tabs);
3873 es->tabs_count = count;
3874 if (!count)
3875 es->tabs = NULL;
3876 else {
3877 INT i;
3878 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3879 for (i = 0 ; i < count ; i++)
3880 es->tabs[i] = *tabs++;
3881 }
3882 return TRUE;
3883 }
3884
3885
3886 /*********************************************************************
3887 *
3888 * EM_SETWORDBREAKPROC
3889 *
3890 */
3891 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3892 {
3893 if (es->word_break_proc == wbp)
3894 return;
3895
3896 es->word_break_proc = wbp;
3897 es->word_break_proc16 = NULL;
3898
3899 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3900 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3901 EDIT_UpdateText(es, NULL, TRUE);
3902 }
3903 }
3904
3905
3906 /*********************************************************************
3907 *
3908 * EM_SETWORDBREAKPROC16
3909 *
3910 */
3911 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3912 {
3913 if (es->word_break_proc16 == wbp)
3914 return;
3915
3916 es->word_break_proc = NULL;
3917 es->word_break_proc16 = wbp;
3918 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3919 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3920 EDIT_UpdateText(es, NULL, TRUE);
3921 }
3922 }
3923
3924
3925 /*********************************************************************
3926 *
3927 * EM_UNDO / WM_UNDO
3928 *
3929 */
3930 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3931 {
3932 INT ulength;
3933 LPWSTR utext;
3934
3935 /* As per MSDN spec, for a single-line edit control,
3936 the return value is always TRUE */
3937 if( es->style & ES_READONLY )
3938 return !(es->style & ES_MULTILINE);
3939
3940 ulength = strlenW(es->undo_text);
3941
3942 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3943
3944 strcpyW(utext, es->undo_text);
3945
3946 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3947 es->undo_insert_count, debugstr_w(utext));
3948
3949 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3950 EDIT_EM_EmptyUndoBuffer(es);
3951 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3952 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3953 /* send the notification after the selection start and end are set */
3954 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3955 EDIT_EM_ScrollCaret(es);
3956 HeapFree(GetProcessHeap(), 0, utext);
3957
3958 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3959 es->undo_insert_count, debugstr_w(es->undo_text));
3960 return TRUE;
3961 }
3962
3963
3964 /* Helper function for WM_CHAR
3965 *
3966 * According to an MSDN blog article titled "Just because you're a control
3967 * doesn't mean that you're necessarily inside a dialog box," multiline edit
3968 * controls without ES_WANTRETURN would attempt to detect whether it is inside
3969 * a dialog box or not.
3970 */
3971 static BOOL EDIT_IsInsideDialog(EDITSTATE *es)
3972 {
3973 WND *pParent;
3974 BOOL r = FALSE;
3975
3976 if (es->hwndParent)
3977 {
3978 pParent = WIN_GetPtr(es->hwndParent);
3979 if (pParent && pParent != WND_OTHER_PROCESS && pParent != WND_DESKTOP)
3980 {
3981 if (pParent->flags & WIN_ISDIALOG)
3982 r = TRUE;
3983 WIN_ReleasePtr(pParent);
3984 }
3985 }
3986 return r;
3987 }
3988
3989
3990 /*********************************************************************
3991 *
3992 * WM_CHAR
3993 *
3994 */
3995 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3996 {
3997 BOOL control;
3998
3999 control = GetKeyState(VK_CONTROL) & 0x8000;
4000
4001 switch (c) {
4002 case '\r':
4003 /* If it's not a multiline edit box, it would be ignored below.
4004 * For multiline edit without ES_WANTRETURN, we have to make a
4005 * special case.
4006 */
4007 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
4008 if (EDIT_IsInsideDialog(es))
4009 break;
4010 case '\n':
4011 if (es->style & ES_MULTILINE) {
4012 if (es->style & ES_READONLY) {
4013 EDIT_MoveHome(es, FALSE, FALSE);
4014 EDIT_MoveDown_ML(es, FALSE);
4015 } else {
4016 static const WCHAR cr_lfW[] = {'\r','\n',0};
4017 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
4018 }
4019 }
4020 break;
4021 case '\t':
4022 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
4023 {
4024 static const WCHAR tabW[] = {'\t',0};
4025 if (EDIT_IsInsideDialog(es))
4026 break;
4027 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
4028 }
4029 break;
4030 case VK_BACK:
4031 if (!(es->style & ES_READONLY) && !control) {
4032 if (es->selection_start != es->selection_end)
4033 EDIT_WM_Clear(es);
4034 else {
4035 /* delete character left of caret */
4036 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4037 EDIT_MoveBackward(es, TRUE);
4038 EDIT_WM_Clear(es);
4039 }
4040 }
4041 break;
4042 case 0x03: /* ^C */
4043 if (!(es->style & ES_PASSWORD))
4044 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4045 break;
4046 case 0x16: /* ^V */
4047 if (!(es->style & ES_READONLY))
4048 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4049 break;
4050 case 0x18: /* ^X */
4051 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
4052 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4053 break;
4054 case 0x1A: /* ^Z */
4055 if (!(es->style & ES_READONLY))
4056 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4057 break;
4058
4059 default:
4060 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4061 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4062 break;
4063
4064 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4065 WCHAR str[2];
4066 str[0] = c;
4067 str[1] = '\0';
4068 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4069 }
4070 break;
4071 }
4072 return 1;
4073 }
4074
4075
4076 /*********************************************************************
4077 *
4078 * WM_COMMAND
4079 *
4080 */
4081 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4082 {
4083 if (code || control)
4084 return;
4085
4086 switch (id) {
4087 case EM_UNDO:
4088 EDIT_EM_Undo(es);
4089 break;
4090 case WM_CUT:
4091 EDIT_WM_Cut(es);
4092 break;
4093 case WM_COPY:
4094 EDIT_WM_Copy(es);
4095 break;
4096 case WM_PASTE:
4097 EDIT_WM_Paste(es);
4098 break;
4099 case WM_CLEAR:
4100 EDIT_WM_Clear(es);
4101 break;
4102 case EM_SETSEL:
4103 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4104 EDIT_EM_ScrollCaret(es);
4105 break;
4106 default:
4107 ERR("unknown menu item, please report\n");
4108 break;
4109 }
4110 }
4111
4112
4113 /*********************************************************************
4114 *
4115 * WM_CONTEXTMENU
4116 *
4117 * Note: the resource files resource/sysres_??.rc cannot define a
4118 * single popup menu. Hence we use a (dummy) menubar
4119 * containing the single popup menu as its first item.
4120 *
4121 * FIXME: the message identifiers have been chosen arbitrarily,
4122 * hence we use MF_BYPOSITION.
4123 * We might as well use the "real" values (anybody knows ?)
4124 * The menu definition is in resources/sysres_??.rc.
4125 * Once these are OK, we better use MF_BYCOMMAND here
4126 * (as we do in EDIT_WM_Command()).
4127 *
4128 */
4129 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4130 {
4131 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4132 HMENU popup = GetSubMenu(menu, 0);
4133 UINT start = es->selection_start;
4134 UINT end = es->selection_end;
4135
4136 ORDER_UINT(start, end);
4137
4138 /* undo */
4139 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4140 /* cut */
4141 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4142 /* copy */
4143 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4144 /* paste */
4145 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4146 /* delete */
4147 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4148 /* select all */
4149 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
4150
4151 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
4152 {
4153 RECT rc;
4154 /* Windows places the menu at the edit's center in this case */
4155 GetClientRect(es->hwndSelf, &rc);
4156 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
4157 x = rc.left + (rc.right - rc.left) / 2;
4158 y = rc.top + (rc.bottom - rc.top) / 2;
4159 }
4160
4161 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4162 DestroyMenu(menu);
4163 }
4164
4165
4166 /*********************************************************************
4167 *
4168 * WM_COPY
4169 *
4170 */
4171 static void EDIT_WM_Copy(EDITSTATE *es)
4172 {
4173 INT s = min(es->selection_start, es->selection_end);
4174 INT e = max(es->selection_start, es->selection_end);
4175 HGLOBAL hdst;
4176 LPWSTR dst;
4177 DWORD len;
4178
4179 if (e == s) return;
4180
4181 len = e - s;
4182 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4183 dst = GlobalLock(hdst);
4184 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4185 dst[len] = 0; /* ensure 0 termination */
4186 TRACE("%s\n", debugstr_w(dst));
4187 GlobalUnlock(hdst);
4188 OpenClipboard(es->hwndSelf);
4189 EmptyClipboard();
4190 SetClipboardData(CF_UNICODETEXT, hdst);
4191 CloseClipboard();
4192 }
4193
4194
4195 /*********************************************************************
4196 *
4197 * WM_CREATE
4198 *
4199 */
4200 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4201 {
4202 RECT clientRect;
4203
4204 TRACE("%s\n", debugstr_w(name));
4205 /*
4206 * To initialize some final structure members, we call some helper
4207 * functions. However, since the EDITSTATE is not consistent (i.e.
4208 * not fully initialized), we should be very careful which
4209 * functions can be called, and in what order.
4210 */
4211 EDIT_WM_SetFont(es, 0, FALSE);
4212 EDIT_EM_EmptyUndoBuffer(es);
4213
4214 /* We need to calculate the format rect
4215 (applications may send EM_SETMARGINS before the control gets visible) */
4216 GetClientRect(es->hwndSelf, &clientRect);
4217 EDIT_SetRectNP(es, &clientRect);
4218
4219 if (name && *name) {
4220 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4221 /* if we insert text to the editline, the text scrolls out
4222 * of the window, as the caret is placed after the insert
4223 * pos normally; thus we reset es->selection... to 0 and
4224 * update caret
4225 */
4226 es->selection_start = es->selection_end = 0;
4227 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4228 * Messages are only to be sent when the USER does something to
4229 * change the contents. So I am removing this EN_CHANGE
4230 *
4231 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4232 */
4233 EDIT_EM_ScrollCaret(es);
4234 }
4235 /* force scroll info update */
4236 EDIT_UpdateScrollInfo(es);
4237 /* The rule seems to return 1 here for success */
4238 /* Power Builder masked edit controls will crash */
4239 /* if not. */
4240 /* FIXME: is that in all cases so ? */
4241 return 1;
4242 }
4243
4244
4245 /*********************************************************************
4246 *
4247 * WM_DESTROY
4248 *
4249 */
4250 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4251 {
4252 LINEDEF *pc, *pp;
4253
4254 if (es->hloc32W) {
4255 LocalFree(es->hloc32W);
4256 }
4257 if (es->hloc32A) {
4258 LocalFree(es->hloc32A);
4259 }
4260 if (es->hloc16) {
4261 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
4262 HANDLE16 oldDS = stack16->ds;
4263
4264 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4265 while (LocalUnlock16(es->hloc16)) ;
4266 LocalFree16(es->hloc16);
4267 stack16->ds = oldDS;
4268 }
4269
4270 pc = es->first_line_def;
4271 while (pc)
4272 {
4273 pp = pc->next;
4274 HeapFree(GetProcessHeap(), 0, pc);
4275 pc = pp;
4276 }
4277
4278 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4279 HeapFree(GetProcessHeap(), 0, es);
4280
4281 return 0;
4282 }
4283
4284
4285 /*********************************************************************
4286 *
4287 * WM_GETTEXT
4288 *
4289 */
4290 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4291 {
4292 if(!count) return 0;
4293
4294 if(unicode)
4295 {
4296 lstrcpynW(dst, es->text, count);
4297 return strlenW(dst);
4298 }
4299 else
4300 {
4301 LPSTR textA = (LPSTR)dst;
4302 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4303 textA[count - 1] = 0; /* ensure 0 termination */
4304 return strlen(textA);
4305 }
4306 }
4307
4308 /*********************************************************************
4309 *
4310 * WM_HSCROLL
4311 *
4312 */
4313 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4314 {
4315 INT dx;
4316 INT fw;
4317
4318 if (!(es->style & ES_MULTILINE))
4319 return 0;
4320
4321 if (!(es->style & ES_AUTOHSCROLL))
4322 return 0;
4323
4324 dx = 0;
4325 fw = es->format_rect.right - es->format_rect.left;
4326 switch (action) {
4327 case SB_LINELEFT:
4328 TRACE("SB_LINELEFT\n");
4329 if (es->x_offset)
4330 dx = -es->char_width;
4331 break;
4332 case SB_LINERIGHT:
4333 TRACE("SB_LINERIGHT\n");
4334 if (es->x_offset < es->text_width)
4335 dx = es->char_width;
4336 break;
4337 case SB_PAGELEFT:
4338 TRACE("SB_PAGELEFT\n");
4339 if (es->x_offset)
4340 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4341 break;
4342 case SB_PAGERIGHT:
4343 TRACE("SB_PAGERIGHT\n");
4344 if (es->x_offset < es->text_width)
4345 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4346 break;
4347 case SB_LEFT:
4348 TRACE("SB_LEFT\n");
4349 if (es->x_offset)
4350 dx = -es->x_offset;
4351 break;
4352 case SB_RIGHT:
4353 TRACE("SB_RIGHT\n");
4354 if (es->x_offset < es->text_width)
4355 dx = es->text_width - es->x_offset;
4356 break;
4357 case SB_THUMBTRACK:
4358 TRACE("SB_THUMBTRACK %d\n", pos);
4359 es->flags |= EF_HSCROLL_TRACK;
4360 if(es->style & WS_HSCROLL)
4361 dx = pos - es->x_offset;
4362 else
4363 {
4364 INT fw, new_x;
4365 /* Sanity check */
4366 if(pos < 0 || pos > 100) return 0;
4367 /* Assume default scroll range 0-100 */
4368 fw = es->format_rect.right - es->format_rect.left;
4369 new_x = pos * (es->text_width - fw) / 100;
4370 dx = es->text_width ? (new_x - es->x_offset) : 0;
4371 }
4372 break;
4373 case SB_THUMBPOSITION:
4374 TRACE("SB_THUMBPOSITION %d\n", pos);
4375 es->flags &= ~EF_HSCROLL_TRACK;
4376 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4377 dx = pos - es->x_offset;
4378 else
4379 {
4380 INT fw, new_x;
4381 /* Sanity check */
4382 if(pos < 0 || pos > 100) return 0;
4383 /* Assume default scroll range 0-100 */
4384 fw = es->format_rect.right - es->format_rect.left;
4385 new_x = pos * (es->text_width - fw) / 100;
4386 dx = es->text_width ? (new_x - es->x_offset) : 0;
4387 }
4388 if (!dx) {
4389 /* force scroll info update */
4390 EDIT_UpdateScrollInfo(es);
4391 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4392 }
4393 break;
4394 case SB_ENDSCROLL:
4395 TRACE("SB_ENDSCROLL\n");
4396 break;
4397 /*
4398 * FIXME : the next two are undocumented !
4399 * Are we doing the right thing ?
4400 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4401 * although it's also a regular control message.
4402 */
4403 case EM_GETTHUMB: /* this one is used by NT notepad */
4404 case EM_GETTHUMB16:
4405 {
4406 LRESULT ret;
4407 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4408 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4409 else
4410 {
4411 /* Assume default scroll range 0-100 */
4412 INT fw = es->format_rect.right - es->format_rect.left;
4413 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4414 }
4415 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4416 return ret;
4417 }
4418 case EM_LINESCROLL16:
4419 TRACE("EM_LINESCROLL16\n");
4420 dx = pos;
4421 break;
4422
4423 default:
4424 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4425 action, action);
4426 return 0;
4427 }
4428 if (dx)
4429 {
4430 INT fw = es->format_rect.right - es->format_rect.left;
4431 /* check if we are going to move too far */
4432 if(es->x_offset + dx + fw > es->text_width)
4433 dx = es->text_width - fw - es->x_offset;
4434 if(dx)
4435 EDIT_EM_LineScroll_internal(es, dx, 0);
4436 }
4437 return 0;
4438 }
4439
4440
4441 /*********************************************************************
4442 *
4443 * EDIT_CheckCombo
4444 *
4445 */
4446 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4447 {
4448 HWND hLBox = es->hwndListBox;
4449 HWND hCombo;
4450 BOOL bDropped;
4451 int nEUI;
4452
4453 if (!hLBox)
4454 return FALSE;
4455
4456 hCombo = GetParent(es->hwndSelf);
4457 bDropped = TRUE;
4458 nEUI = 0;
4459
4460 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4461
4462 if (key == VK_UP || key == VK_DOWN)
4463 {
4464 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4465 nEUI = 1;
4466
4467 if (msg == WM_KEYDOWN || nEUI)
4468 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4469 }
4470
4471 switch (msg)
4472 {
4473 case WM_KEYDOWN:
4474 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4475 {
4476 /* make sure ComboLBox pops up */
4477 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4478 key = VK_F4;
4479 nEUI = 2;
4480 }
4481
4482 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4483 break;
4484
4485 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4486 if (nEUI)
4487 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4488 else
4489 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4490 break;
4491 }
4492
4493 if(nEUI == 2)
4494 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4495
4496 return TRUE;
4497 }
4498
4499
4500 /*********************************************************************
4501 *
4502 * WM_KEYDOWN
4503 *
4504 * Handling of special keys that don't produce a WM_CHAR
4505 * (i.e. non-printable keys) & Backspace & Delete
4506 *
4507 */
4508 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4509 {
4510 BOOL shift;
4511 BOOL control;
4512
4513 if (GetKeyState(VK_MENU) & 0x8000)
4514 return 0;
4515
4516 shift = GetKeyState(VK_SHIFT) & 0x8000;
4517 control = GetKeyState(VK_CONTROL) & 0x8000;
4518
4519 switch (key) {
4520 case VK_F4:
4521 case VK_UP:
4522 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4523 break;
4524
4525 /* fall through */
4526 case VK_LEFT:
4527 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4528 EDIT_MoveUp_ML(es, shift);
4529 else
4530 if (control)
4531 EDIT_MoveWordBackward(es, shift);
4532 else
4533 EDIT_MoveBackward(es, shift);
4534 break;
4535 case VK_DOWN:
4536 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4537 break;
4538 /* fall through */
4539 case VK_RIGHT:
4540 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4541 EDIT_MoveDown_ML(es, shift);
4542 else if (control)
4543 EDIT_MoveWordForward(es, shift);
4544 else
4545 EDIT_MoveForward(es, shift);
4546 break;
4547 case VK_HOME:
4548 EDIT_MoveHome(es, shift, control);
4549 break;
4550 case VK_END:
4551 EDIT_MoveEnd(es, shift, control);
4552 break;
4553 case VK_PRIOR:
4554 if (es->style & ES_MULTILINE)
4555 EDIT_MovePageUp_ML(es, shift);
4556 else
4557 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4558 break;
4559 case VK_NEXT:
4560 if (es->style & ES_MULTILINE)
4561 EDIT_MovePageDown_ML(es, shift);
4562 else
4563 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4564 break;
4565 case VK_DELETE:
4566 if (!(es->style & ES_READONLY) && !(shift && control)) {
4567 if (es->selection_start != es->selection_end) {
4568 if (shift)
4569 EDIT_WM_Cut(es);
4570 else
4571 EDIT_WM_Clear(es);
4572 } else {
4573 if (shift) {
4574 /* delete character left of caret */
4575 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4576 EDIT_MoveBackward(es, TRUE);
4577 EDIT_WM_Clear(es);
4578 } else if (control) {
4579 /* delete to end of line */
4580 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4581 EDIT_MoveEnd(es, TRUE, FALSE);
4582 EDIT_WM_Clear(es);
4583 } else {
4584 /* delete character right of caret */
4585 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4586 EDIT_MoveForward(es, TRUE);
4587 EDIT_WM_Clear(es);
4588 }
4589 }
4590 }
4591 break;
4592 case VK_INSERT:
4593 if (shift) {
4594 if (!(es->style & ES_READONLY))
4595 EDIT_WM_Paste(es);
4596 } else if (control)
4597 EDIT_WM_Copy(es);
4598 break;
4599 case VK_RETURN:
4600 /* If the edit doesn't want the return send a message to the default object */
4601 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
4602 {
4603 HWND hwndParent;
4604 DWORD dw;
4605
4606 if (!EDIT_IsInsideDialog(es)) return 1;
4607 if (control) break;
4608 hwndParent = GetParent(es->hwndSelf);
4609 dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4610 if (HIWORD(dw) == DC_HASDEFID)
4611 {
4612 SendMessageW( hwndParent, WM_COMMAND,
4613 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4614 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4615 }
4616 else
4617 SendMessageW( hwndParent, WM_COMMAND, IDOK, (LPARAM)GetDlgItem( hwndParent, IDOK ) );
4618 }
4619 break;
4620 case VK_ESCAPE:
4621 if (!(es->style & ES_MULTILINE))
4622 SendMessageW(GetParent(es->hwndSelf), WM_COMMAND, IDCANCEL, (LPARAM)GetDlgItem( GetParent(es->hwndSelf), IDCANCEL ) );
4623 break;
4624 case VK_TAB:
4625 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
4626 break;
4627 }
4628 return 0;
4629 }
4630
4631
4632 /*********************************************************************
4633 *
4634 * WM_KILLFOCUS
4635 *
4636 */
4637 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4638 {
4639 es->flags &= ~EF_FOCUSED;
4640 DestroyCaret();
4641 if(!(es->style & ES_NOHIDESEL))
4642 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4643 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4644 return 0;
4645 }
4646
4647
4648 /*********************************************************************
4649 *
4650 * WM_LBUTTONDBLCLK
4651 *
4652 * The caret position has been set on the WM_LBUTTONDOWN message
4653 *
4654 */
4655 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4656 {
4657 INT s;
4658 INT e = es->selection_end;
4659 INT l;
4660 INT li;
4661 INT ll;
4662
4663 es->bCaptureState = TRUE;
4664 SetCapture(es->hwndSelf);
4665
4666 l = EDIT_EM_LineFromChar(es, e);
4667 li = EDIT_EM_LineIndex(es, l);
4668 ll = EDIT_EM_LineLength(es, e);
4669 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4670 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4671 EDIT_EM_SetSel(es, s, e, FALSE);
4672 EDIT_EM_ScrollCaret(es);
4673 es->region_posx = es->region_posy = 0;
4674 SetTimer(es->hwndSelf, 0, 100, NULL);
4675 return 0;
4676 }
4677
4678
4679 /*********************************************************************
4680 *
4681 * WM_LBUTTONDOWN
4682 *
4683 */
4684 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4685 {
4686 INT e;
4687 BOOL after_wrap;
4688
4689 es->bCaptureState = TRUE;
4690 SetCapture(es->hwndSelf);
4691 EDIT_ConfinePoint(es, &x, &y);
4692 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4693 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4694 EDIT_EM_ScrollCaret(es);
4695 es->region_posx = es->region_posy = 0;
4696 SetTimer(es->hwndSelf, 0, 100, NULL);
4697
4698 if (!(es->flags & EF_FOCUSED))
4699 SetFocus(es->hwndSelf);
4700
4701 return 0;
4702 }
4703
4704
4705 /*********************************************************************
4706 *
4707 * WM_LBUTTONUP
4708 *
4709 */
4710 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4711 {
4712 if (es->bCaptureState) {
4713 KillTimer(es->hwndSelf, 0);
4714 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4715 }
4716 es->bCaptureState = FALSE;
4717 return 0;
4718 }
4719
4720
4721 /*********************************************************************
4722 *
4723 * WM_MBUTTONDOWN
4724 *
4725 */
4726 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4727 {
4728 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4729 return 0;
4730 }
4731
4732
4733 /*********************************************************************
4734 *
4735 * WM_MOUSEMOVE
4736 *
4737 */
4738 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4739 {
4740 INT e;
4741 BOOL after_wrap;
4742 INT prex, prey;
4743
4744 /* If the mouse has been captured by process other than the edit control itself,
4745 * the windows edit controls will not select the strings with mouse move.
4746 */
4747 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4748 return 0;
4749
4750 /*
4751 * FIXME: gotta do some scrolling if outside client
4752 * area. Maybe reset the timer ?
4753 */
4754 prex = x; prey = y;
4755 EDIT_ConfinePoint(es, &x, &y);
4756 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4757 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4758 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4759 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4760 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4761 return 0;
4762 }
4763
4764
4765 /*********************************************************************
4766 *
4767 * WM_NCCREATE
4768 *
4769 * See also EDIT_WM_StyleChanged
4770 */
4771 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4772 {
4773 EDITSTATE *es;
4774 UINT alloc_size;
4775
4776 TRACE("Creating %s edit control, style = %08x\n",
4777 unicode ? "Unicode" : "ANSI", lpcs->style);
4778
4779 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4780 return FALSE;
4781 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4782
4783 /*
4784 * Note: since the EDITSTATE has not been fully initialized yet,
4785 * we can't use any API calls that may send
4786 * WM_XXX messages before WM_NCCREATE is completed.
4787 */
4788
4789 es->is_unicode = unicode;
4790 es->style = lpcs->style;
4791
4792 es->bEnableState = !(es->style & WS_DISABLED);
4793
4794 es->hwndSelf = hwnd;
4795 /* Save parent, which will be notified by EN_* messages */
4796 es->hwndParent = lpcs->hwndParent;
4797
4798 if (es->style & ES_COMBO)
4799 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4800
4801 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4802 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4803
4804 /* Number overrides lowercase overrides uppercase (at least it
4805 * does in Win95). However I'll bet that ES_NUMBER would be
4806 * invalid under Win 3.1.
4807 */
4808 if (es->style & ES_NUMBER) {
4809 ; /* do not override the ES_NUMBER */
4810 } else if (es->style & ES_LOWERCASE) {
4811 es->style &= ~ES_UPPERCASE;
4812 }
4813 if (es->style & ES_MULTILINE) {
4814 es->buffer_limit = BUFLIMIT_INITIAL;
4815 if (es->style & WS_VSCROLL)
4816 es->style |= ES_AUTOVSCROLL;
4817 if (es->style & WS_HSCROLL)
4818 es->style |= ES_AUTOHSCROLL;
4819 es->style &= ~ES_PASSWORD;
4820 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4821 /* Confirmed - RIGHT overrides CENTER */
4822 if (es->style & ES_RIGHT)
4823 es->style &= ~ES_CENTER;
4824 es->style &= ~WS_HSCROLL;
4825 es->style &= ~ES_AUTOHSCROLL;
4826 }
4827 } else {
4828 es->buffer_limit = BUFLIMIT_INITIAL;
4829 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4830 es->style &= ~ES_CENTER;
4831 es->style &= ~WS_HSCROLL;
4832 es->style &= ~WS_VSCROLL;
4833 if (es->style & ES_PASSWORD)
4834 es->password_char = '*';
4835 }
4836
4837 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4838 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4839 return FALSE;
4840 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4841
4842 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4843 return FALSE;
4844 es->undo_buffer_size = es->buffer_size;
4845
4846 if (es->style & ES_MULTILINE)
4847 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4848 return FALSE;
4849 es->line_count = 1;
4850
4851 /*
4852 * In Win95 look and feel, the WS_BORDER style is replaced by the
4853 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4854 * control a nonclient area so we don't need to draw the border.
4855 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4856 * a nonclient area and we should handle painting the border ourselves.
4857 *
4858 * When making modifications please ensure that the code still works
4859 * for edit controls created directly with style 0x50800000, exStyle 0
4860 * (which should have a single pixel border)
4861 */
4862 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4863 es->style &= ~WS_BORDER;
4864 else if (es->style & WS_BORDER)
4865 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4866
4867 return TRUE;
4868 }
4869
4870 /*********************************************************************
4871 *
4872 * WM_PAINT
4873 *
4874 */
4875 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4876 {
4877 PAINTSTRUCT ps;
4878 INT i;
4879 HDC dc;
4880 HFONT old_font = 0;
4881 RECT rc;
4882 RECT rcClient;
4883 RECT rcLine;
4884 RECT rcRgn;
4885 HBRUSH brush;
4886 HBRUSH old_brush;
4887 INT bw, bh;
4888 BOOL rev = es->bEnableState &&
4889 ((es->flags & EF_FOCUSED) ||
4890 (es->style & ES_NOHIDESEL));
4891 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4892
4893 GetClientRect(es->hwndSelf, &rcClient);
4894
4895 /* get the background brush */
4896 brush = EDIT_NotifyCtlColor(es, dc);
4897
4898 /* paint the border and the background */
4899 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4900
4901 if(es->style & WS_BORDER) {
4902 bw = GetSystemMetrics(SM_CXBORDER);
4903 bh = GetSystemMetrics(SM_CYBORDER);
4904 rc = rcClient;
4905 if(es->style & ES_MULTILINE) {
4906 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4907 if(es->style & WS_VSCROLL) rc.right+=bw;
4908 }
4909
4910 /* Draw the frame. Same code as in nonclient.c */
4911 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4912 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4913 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4914 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4915 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4916 SelectObject(dc, old_brush);
4917
4918 /* Keep the border clean */
4919 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4920 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4921 }
4922
4923 GetClipBox(dc, &rc);
4924 FillRect(dc, &rc, brush);
4925
4926 IntersectClipRect(dc, es->format_rect.left,
4927 es->format_rect.top,
4928 es->format_rect.right,
4929 es->format_rect.bottom);
4930 if (es->style & ES_MULTILINE) {
4931 rc = rcClient;
4932 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4933 }
4934 if (es->font)
4935 old_font = SelectObject(dc, es->font);
4936
4937 if (!es->bEnableState)
4938 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4939 GetClipBox(dc, &rcRgn);
4940 if (es->style & ES_MULTILINE) {
4941 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4942 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4943 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4944 if (IntersectRect(&rc, &rcRgn, &rcLine))
4945 EDIT_PaintLine(es, dc, i, rev);
4946 }
4947 } else {
4948 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4949 if (IntersectRect(&rc, &rcRgn, &rcLine))
4950 EDIT_PaintLine(es, dc, 0, rev);
4951 }
4952 if (es->font)
4953 SelectObject(dc, old_font);
4954
4955 if (!hdc)
4956 EndPaint(es->hwndSelf, &ps);
4957 }
4958
4959
4960 /*********************************************************************
4961 *
4962 * WM_PASTE
4963 *
4964 */
4965 static void EDIT_WM_Paste(EDITSTATE *es)
4966 {
4967 HGLOBAL hsrc;
4968 LPWSTR src;
4969
4970 /* Protect read-only edit control from modification */
4971 if(es->style & ES_READONLY)
4972 return;
4973
4974 OpenClipboard(es->hwndSelf);
4975 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4976 src = (LPWSTR)GlobalLock(hsrc);
4977 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4978 GlobalUnlock(hsrc);
4979 }
4980 else if (es->style & ES_PASSWORD) {
4981 /* clear selected text in password edit box even with empty clipboard */
4982 const WCHAR empty_strW[] = { 0 };
4983 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
4984 }
4985 CloseClipboard();
4986 }
4987
4988
4989 /*********************************************************************
4990 *
4991 * WM_SETFOCUS
4992 *
4993 */
4994 static void EDIT_WM_SetFocus(EDITSTATE *es)
4995 {
4996 es->flags |= EF_FOCUSED;
4997
4998 if (!(es->style & ES_NOHIDESEL))
4999 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
5000
5001 /* single line edit updates itself */
5002 if (!(es->style & ES_MULTILINE))
5003 {
5004 HDC hdc = GetDC(es->hwndSelf);
5005 EDIT_WM_Paint(es, hdc);
5006 ReleaseDC(es->hwndSelf, hdc);
5007 }
5008
5009 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5010 EDIT_SetCaretPos(es, es->selection_end,
5011 es->flags & EF_AFTER_WRAP);
5012 ShowCaret(es->hwndSelf);
5013 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
5014 }
5015
5016
5017 /*********************************************************************
5018 *
5019 * WM_SETFONT
5020 *
5021 * With Win95 look the margins are set to default font value unless
5022 * the system font (font == 0) is being set, in which case they are left
5023 * unchanged.
5024 *
5025 */
5026 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
5027 {
5028 TEXTMETRICW tm;
5029 HDC dc;
5030 HFONT old_font = 0;
5031 RECT clientRect;
5032
5033 es->font = font;
5034 dc = GetDC(es->hwndSelf);
5035 if (font)
5036 old_font = SelectObject(dc, font);
5037 GetTextMetricsW(dc, &tm);
5038 es->line_height = tm.tmHeight;
5039 es->char_width = tm.tmAveCharWidth;
5040 if (font)
5041 SelectObject(dc, old_font);
5042 ReleaseDC(es->hwndSelf, dc);
5043
5044 /* Reset the format rect and the margins */
5045 GetClientRect(es->hwndSelf, &clientRect);
5046 EDIT_SetRectNP(es, &clientRect);
5047 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
5048 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
5049
5050 if (es->style & ES_MULTILINE)
5051 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
5052 else
5053 EDIT_CalcLineWidth_SL(es);
5054
5055 if (redraw)
5056 EDIT_UpdateText(es, NULL, TRUE);
5057 if (es->flags & EF_FOCUSED) {
5058 DestroyCaret();
5059 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5060 EDIT_SetCaretPos(es, es->selection_end,
5061 es->flags & EF_AFTER_WRAP);
5062 ShowCaret(es->hwndSelf);
5063 }
5064 }
5065
5066
5067 /*********************************************************************
5068 *
5069 * WM_SETTEXT
5070 *
5071 * NOTES
5072 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5073 * The modified flag is reset. No notifications are sent.
5074 *
5075 * For single-line controls, reception of WM_SETTEXT triggers:
5076 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5077 *
5078 */
5079 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5080 {
5081 LPWSTR textW = NULL;
5082 if (!unicode && text)
5083 {
5084 LPCSTR textA = (LPCSTR)text;
5085 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5086 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5087 if (textW)
5088 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5089 text = textW;
5090 }
5091
5092 if (es->flags & EF_UPDATE)
5093 /* fixed this bug once; complain if we see it about to happen again. */
5094 ERR("SetSel may generate UPDATE message whose handler may reset "
5095 "selection.\n");
5096
5097 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5098 if (text)
5099 {
5100 TRACE("%s\n", debugstr_w(text));
5101 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5102 if(!unicode)
5103 HeapFree(GetProcessHeap(), 0, textW);
5104 }
5105 else
5106 {
5107 static const WCHAR empty_stringW[] = {0};
5108 TRACE("<NULL>\n");
5109 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5110 }
5111 es->x_offset = 0;
5112 es->flags &= ~EF_MODIFIED;
5113 EDIT_EM_SetSel(es, 0, 0, FALSE);
5114
5115 /* Send the notification after the selection start and end have been set
5116 * edit control doesn't send notification on WM_SETTEXT
5117 * if it is multiline, or it is part of combobox
5118 */
5119 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5120 {
5121 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5122 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5123 }
5124 EDIT_EM_ScrollCaret(es);
5125 EDIT_UpdateScrollInfo(es);
5126 }
5127
5128
5129 /*********************************************************************
5130 *
5131 * WM_SIZE
5132 *
5133 */
5134 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5135 {
5136 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5137 RECT rc;
5138 TRACE("width = %d, height = %d\n", width, height);
5139 SetRect(&rc, 0, 0, width, height);
5140 EDIT_SetRectNP(es, &rc);
5141 EDIT_UpdateText(es, NULL, TRUE);
5142 }
5143 }
5144
5145
5146 /*********************************************************************
5147 *
5148 * WM_STYLECHANGED
5149 *
5150 * This message is sent by SetWindowLong on having changed either the Style
5151 * or the extended style.
5152 *
5153 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5154 *
5155 * See also EDIT_WM_NCCreate
5156 *
5157 * It appears that the Windows version of the edit control allows the style
5158 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5159 * style variable which will generally be different. In this function we
5160 * update the internal style based on what changed in the externally visible
5161 * style.
5162 *
5163 * Much of this content as based upon the MSDN, especially:
5164 * Platform SDK Documentation -> User Interface Services ->
5165 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5166 * Edit Control Styles
5167 */
5168 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5169 {
5170 if (GWL_STYLE == which) {
5171 DWORD style_change_mask;
5172 DWORD new_style;
5173 /* Only a subset of changes can be applied after the control
5174 * has been created.
5175 */
5176 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5177 ES_NUMBER;
5178 if (es->style & ES_MULTILINE)
5179 style_change_mask |= ES_WANTRETURN;
5180
5181 new_style = style->styleNew & style_change_mask;
5182
5183 /* Number overrides lowercase overrides uppercase (at least it
5184 * does in Win95). However I'll bet that ES_NUMBER would be
5185 * invalid under Win 3.1.
5186 */
5187 if (new_style & ES_NUMBER) {
5188 ; /* do not override the ES_NUMBER */
5189 } else if (new_style & ES_LOWERCASE) {
5190 new_style &= ~ES_UPPERCASE;
5191 }
5192
5193 es->style = (es->style & ~style_change_mask) | new_style;
5194 } else if (GWL_EXSTYLE == which) {
5195 ; /* FIXME - what is needed here */
5196 } else {
5197 WARN ("Invalid style change %ld\n",which);
5198 }
5199
5200 return 0;
5201 }
5202
5203 /*********************************************************************
5204 *
5205 * WM_SYSKEYDOWN
5206 *
5207 */
5208 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5209 {
5210 if ((key == VK_BACK) && (key_data & 0x2000)) {
5211 if (EDIT_EM_CanUndo(es))
5212 EDIT_EM_Undo(es);
5213 return 0;
5214 } else if (key == VK_UP || key == VK_DOWN) {
5215 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5216 return 0;
5217 }
5218 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5219 }
5220
5221
5222 /*********************************************************************
5223 *
5224 * WM_TIMER
5225 *
5226 */
5227 static void EDIT_WM_Timer(EDITSTATE *es)
5228 {
5229 if (es->region_posx < 0) {
5230 EDIT_MoveBackward(es, TRUE);
5231 } else if (es->region_posx > 0) {
5232 EDIT_MoveForward(es, TRUE);
5233 }
5234 /*
5235 * FIXME: gotta do some vertical scrolling here, like
5236 * EDIT_EM_LineScroll(hwnd, 0, 1);
5237 */
5238 }
5239
5240 /*********************************************************************
5241 *
5242 * WM_VSCROLL
5243 *
5244 */
5245 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5246 {
5247 INT dy;
5248
5249 if (!(es->style & ES_MULTILINE))
5250 return 0;
5251
5252 if (!(es->style & ES_AUTOVSCROLL))
5253 return 0;
5254
5255 dy = 0;
5256 switch (action) {
5257 case SB_LINEUP:
5258 case SB_LINEDOWN:
5259 case SB_PAGEUP:
5260 case SB_PAGEDOWN:
5261 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5262 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5263 (action == SB_PAGEUP ? "SB_PAGEUP" :
5264 "SB_PAGEDOWN"))));
5265 EDIT_EM_Scroll(es, action);
5266 return 0;
5267 case SB_TOP:
5268 TRACE("SB_TOP\n");
5269 dy = -es->y_offset;
5270 break;
5271 case SB_BOTTOM:
5272 TRACE("SB_BOTTOM\n");
5273 dy = es->line_count - 1 - es->y_offset;
5274 break;
5275 case SB_THUMBTRACK:
5276 TRACE("SB_THUMBTRACK %d\n", pos);
5277 es->flags |= EF_VSCROLL_TRACK;
5278 if(es->style & WS_VSCROLL)
5279 dy = pos - es->y_offset;
5280 else
5281 {
5282 /* Assume default scroll range 0-100 */
5283 INT vlc, new_y;
5284 /* Sanity check */
5285 if(pos < 0 || pos > 100) return 0;
5286 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5287 new_y = pos * (es->line_count - vlc) / 100;
5288 dy = es->line_count ? (new_y - es->y_offset) : 0;
5289 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5290 es->line_count, es->y_offset, pos, dy);
5291 }
5292 break;
5293 case SB_THUMBPOSITION:
5294 TRACE("SB_THUMBPOSITION %d\n", pos);
5295 es->flags &= ~EF_VSCROLL_TRACK;
5296 if(es->style & WS_VSCROLL)
5297 dy = pos - es->y_offset;
5298 else
5299 {
5300 /* Assume default scroll range 0-100 */
5301 INT vlc, new_y;
5302 /* Sanity check */
5303 if(pos < 0 || pos > 100) return 0;
5304 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5305 new_y = pos * (es->line_count - vlc) / 100;
5306 dy = es->line_count ? (new_y - es->y_offset) : 0;
5307 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5308 es->line_count, es->y_offset, pos, dy);
5309 }
5310 if (!dy)
5311 {
5312 /* force scroll info update */
5313 EDIT_UpdateScrollInfo(es);
5314 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5315 }
5316 break;
5317 case SB_ENDSCROLL:
5318 TRACE("SB_ENDSCROLL\n");
5319 break;
5320 /*
5321 * FIXME : the next two are undocumented !
5322 * Are we doing the right thing ?
5323 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5324 * although it's also a regular control message.
5325 */
5326 case EM_GETTHUMB: /* this one is used by NT notepad */
5327 case EM_GETTHUMB16:
5328 {
5329 LRESULT ret;
5330 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5331 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5332 else
5333 {
5334 /* Assume default scroll range 0-100 */
5335 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5336 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5337 }
5338 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5339 return ret;
5340 }
5341 case EM_LINESCROLL16:
5342 TRACE("EM_LINESCROLL16 %d\n", pos);
5343 dy = pos;
5344 break;
5345
5346 default:
5347 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5348 action, action);
5349 return 0;
5350 }
5351 if (dy)
5352 EDIT_EM_LineScroll(es, 0, dy);
5353 return 0;
5354 }
5355
5356 /*********************************************************************
5357 *
5358 * EDIT_UpdateText
5359 *
5360 */
5361 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5362 {
5363 if (es->flags & EF_UPDATE) {
5364 es->flags &= ~EF_UPDATE;
5365 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5366 }
5367 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5368 }
5369
5370
5371 /*********************************************************************
5372 *
5373 * EDIT_UpdateText
5374 *
5375 */
5376 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
5377 {
5378 if (es->flags & EF_UPDATE) {
5379 es->flags &= ~EF_UPDATE;
5380 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5381 }
5382 InvalidateRect(es->hwndSelf, rc, bErase);
5383 }
5384
5385 /********************************************************************
5386 *
5387 * The Following code is to handle inline editing from IMEs
5388 */
5389
5390 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
5391 {
5392 LONG buflen;
5393 LPWSTR lpCompStr = NULL;
5394 LPSTR lpCompStrAttr = NULL;
5395 DWORD dwBufLenAttr;
5396
5397 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5398
5399 if (buflen < 0)
5400 {
5401 return;
5402 }
5403
5404 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
5405 if (!lpCompStr)
5406 {
5407 ERR("Unable to allocate IME CompositionString\n");
5408 return;
5409 }
5410
5411 if (buflen)
5412 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
5413 lpCompStr[buflen/sizeof(WCHAR)] = 0;
5414
5415 if (CompFlag & GCS_COMPATTR)
5416 {
5417 /*
5418 * We do not use the attributes yet. it would tell us what characters
5419 * are in transition and which are converted or decided upon
5420 */
5421 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5422 if (dwBufLenAttr)
5423 {
5424 dwBufLenAttr ++;
5425 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
5426 if (!lpCompStrAttr)
5427 {
5428 ERR("Unable to allocate IME Attribute String\n");
5429 HeapFree(GetProcessHeap(),0,lpCompStr);
5430 return;
5431 }
5432 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5433 dwBufLenAttr);
5434 lpCompStrAttr[dwBufLenAttr] = 0;
5435 }
5436 else
5437 lpCompStrAttr = NULL;
5438 }
5439
5440 /* check for change in composition start */
5441 if (es->selection_end < es->composition_start)
5442 es->composition_start = es->selection_end;
5443
5444 /* replace existing selection string */
5445 es->selection_start = es->composition_start;
5446
5447 if (es->composition_len > 0)
5448 es->selection_end = es->composition_start + es->composition_len;
5449 else
5450 es->selection_end = es->selection_start;
5451
5452 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5453 es->composition_len = abs(es->composition_start - es->selection_end);
5454
5455 es->selection_start = es->composition_start;
5456 es->selection_end = es->selection_start + es->composition_len;
5457
5458 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5459 HeapFree(GetProcessHeap(),0,lpCompStr);
5460 }
5461
5462 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
5463 {
5464 LONG buflen;
5465 LPWSTR lpResultStr;
5466
5467 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5468 if (buflen <= 0)
5469 {
5470 return;
5471 }
5472
5473 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
5474 if (!lpResultStr)
5475 {
5476 ERR("Unable to alloc buffer for IME string\n");
5477 return;
5478 }
5479
5480 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
5481 lpResultStr[buflen/sizeof(WCHAR)] = 0;
5482
5483 /* check for change in composition start */
5484 if (es->selection_end < es->composition_start)
5485 es->composition_start = es->selection_end;
5486
5487 es->selection_start = es->composition_start;
5488 es->selection_end = es->composition_start + es->composition_len;
5489 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5490 es->composition_start = es->selection_end;
5491 es->composition_len = 0;
5492
5493 HeapFree(GetProcessHeap(),0,lpResultStr);
5494 }
5495
5496 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5497 {
5498 HIMC hIMC;
5499 int cursor;
5500
5501 if (es->composition_len == 0 && es->selection_start != es->selection_end)
5502 {
5503 static const WCHAR empty_stringW[] = {0};
5504 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
5505 es->composition_start = es->selection_end;
5506 }
5507
5508 hIMC = ImmGetContext(hwnd);
5509 if (!hIMC)
5510 return;
5511
5512 if (CompFlag & GCS_RESULTSTR)
5513 EDIT_GetResultStr(hIMC, es);
5514 if (CompFlag & GCS_COMPSTR)
5515 EDIT_GetCompositionStr(hIMC, CompFlag, es);
5516 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
5517 ImmReleaseContext(hwnd, hIMC);
5518 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
5519 }
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