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kernel32/tests: Fix the time tests when 'Automatically adjust clock for daylight...
[wine/hacks.git] / dlls / user32 / edit.c
bloba3eb1d833bf890d58ac391429c28916d1d7a84bd
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);
215 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
216 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
217 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
218 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
219 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
220 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
221 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
222 static void EDIT_AdjustFormatRect(EDITSTATE *es);
223 static void EDIT_SetRectNP(EDITSTATE *es, 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 void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
261 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
262 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
263 static void EDIT_WM_Copy(EDITSTATE *es);
264 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
265 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
266 static 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 {
799 result |= DLGC_WANTALLKEYS;
800 break;
801 }
802
803 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
804 {
805 int vk = (int)((LPMSG)lParam)->wParam;
806
807 if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
808 {
809 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
810 result |= DLGC_WANTMESSAGE;
811 }
812 }
813 break;
814
815 case WM_IME_CHAR:
816 if (!unicode)
817 {
818 WCHAR charW;
819 CHAR strng[2];
820
821 strng[0] = wParam >> 8;
822 strng[1] = wParam & 0xff;
823 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
824 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
825 EDIT_WM_Char(es, charW);
826 break;
827 }
828 /* fall through */
829 case WM_CHAR:
830 {
831 WCHAR charW;
832
833 if(unicode)
834 charW = wParam;
835 else
836 {
837 CHAR charA = wParam;
838 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
839 }
840
841 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
842 {
843 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
844 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
845 break;
846 }
847 EDIT_WM_Char(es, charW);
848 break;
849 }
850
851 case WM_CLEAR:
852 EDIT_WM_Clear(es);
853 break;
854
855 case WM_COMMAND:
856 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
857 break;
858
859 case WM_CONTEXTMENU:
860 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
861 break;
862
863 case WM_COPY:
864 EDIT_WM_Copy(es);
865 break;
866
867 case WM_CREATE:
868 if(unicode)
869 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
870 else
871 {
872 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
873 LPWSTR nameW = NULL;
874 if(nameA)
875 {
876 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
877 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
878 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
879 }
880 result = EDIT_WM_Create(es, nameW);
881 HeapFree(GetProcessHeap(), 0, nameW);
882 }
883 break;
884
885 case WM_CUT:
886 EDIT_WM_Cut(es);
887 break;
888
889 case WM_ENABLE:
890 es->bEnableState = (BOOL) wParam;
891 EDIT_UpdateText(es, NULL, TRUE);
892 break;
893
894 case WM_ERASEBKGND:
895 /* we do the proper erase in EDIT_WM_Paint */
896 result = 1;
897 break;
898
899 case WM_GETFONT:
900 result = (LRESULT)es->font;
901 break;
902
903 case WM_GETTEXT:
904 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
905 break;
906
907 case WM_GETTEXTLENGTH:
908 if (unicode) result = get_text_length(es);
909 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
910 NULL, 0, NULL, NULL );
911 break;
912
913 case WM_HSCROLL:
914 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
915 break;
916
917 case WM_KEYDOWN:
918 result = EDIT_WM_KeyDown(es, (INT)wParam);
919 break;
920
921 case WM_KILLFOCUS:
922 result = EDIT_WM_KillFocus(es);
923 break;
924
925 case WM_LBUTTONDBLCLK:
926 result = EDIT_WM_LButtonDblClk(es);
927 break;
928
929 case WM_LBUTTONDOWN:
930 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
931 break;
932
933 case WM_LBUTTONUP:
934 result = EDIT_WM_LButtonUp(es);
935 break;
936
937 case WM_MBUTTONDOWN:
938 result = EDIT_WM_MButtonDown(es);
939 break;
940
941 case WM_MOUSEMOVE:
942 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
943 break;
944
945 case WM_PRINTCLIENT:
946 case WM_PAINT:
947 EDIT_WM_Paint(es, (HDC)wParam);
948 break;
949
950 case WM_PASTE:
951 EDIT_WM_Paste(es);
952 break;
953
954 case WM_SETFOCUS:
955 EDIT_WM_SetFocus(es);
956 break;
957
958 case WM_SETFONT:
959 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
960 break;
961
962 case WM_SETREDRAW:
963 /* FIXME: actually set an internal flag and behave accordingly */
964 break;
965
966 case WM_SETTEXT:
967 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
968 result = TRUE;
969 break;
970
971 case WM_SIZE:
972 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
973 break;
974
975 case WM_STYLECHANGED:
976 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
977 break;
978
979 case WM_STYLECHANGING:
980 result = 0; /* See EDIT_WM_StyleChanged */
981 break;
982
983 case WM_SYSKEYDOWN:
984 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
985 break;
986
987 case WM_TIMER:
988 EDIT_WM_Timer(es);
989 break;
990
991 case WM_VSCROLL:
992 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
993 break;
994
995 case WM_MOUSEWHEEL:
996 {
997 int gcWheelDelta = 0;
998 UINT pulScrollLines = 3;
999 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1000
1001 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1002 result = DefWindowProcW(hwnd, msg, wParam, lParam);
1003 break;
1004 }
1005 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
1006 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1007 {
1008 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1009 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1010 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1011 }
1012 }
1013 break;
1014
1015
1016 /* IME messages to make the edit control IME aware */
1017 case WM_IME_SETCONTEXT:
1018 break;
1019
1020 case WM_IME_STARTCOMPOSITION:
1021 /*
1022 * FIXME in IME: This message is not always sent like it should be
1023 */
1024 if (es->selection_start != es->selection_end)
1025 {
1026 static const WCHAR empty_stringW[] = {0};
1027 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1028 }
1029 es->composition_start = es->selection_end;
1030 es->composition_len = 0;
1031 break;
1032
1033 case WM_IME_COMPOSITION:
1034 {
1035 int caret_pos = es->selection_end;
1036 if (es->composition_len == 0)
1037 {
1038 if (es->selection_start != es->selection_end)
1039 {
1040 static const WCHAR empty_stringW[] = {0};
1041 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1042 }
1043
1044 es->composition_start = es->selection_end;
1045 }
1046 EDIT_ImeComposition(hwnd,lParam,es);
1047 EDIT_SetCaretPos(es, caret_pos, es->flags & EF_AFTER_WRAP);
1048 break;
1049 }
1050
1051 case WM_IME_ENDCOMPOSITION:
1052 es->composition_len= 0;
1053 break;
1054
1055 case WM_IME_COMPOSITIONFULL:
1056 break;
1057
1058 case WM_IME_SELECT:
1059 break;
1060
1061 case WM_IME_CONTROL:
1062 break;
1063
1064 default:
1065 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1066 break;
1067 }
1068
1069 if (es) EDIT_UnlockBuffer(es, FALSE);
1070
1071 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1072
1073 return result;
1074 }
1075
1076 /*********************************************************************
1077 *
1078 * EditWndProcW (USER32.@)
1079 */
1080 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1081 {
1082 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1083 }
1084
1085 /*********************************************************************
1086 *
1087 * EditWndProc (USER32.@)
1088 */
1089 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1090 {
1091 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1092 }
1093
1094 /*********************************************************************
1095 *
1096 * EDIT_BuildLineDefs_ML
1097 *
1098 * Build linked list of text lines.
1099 * Lines can end with '\0' (last line), a character (if it is wrapped),
1100 * a soft return '\r\r\n' or a hard return '\r\n'
1101 *
1102 */
1103 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1104 {
1105 HDC dc;
1106 HFONT old_font = 0;
1107 LPWSTR current_position, cp;
1108 INT fw;
1109 LINEDEF *current_line;
1110 LINEDEF *previous_line;
1111 LINEDEF *start_line;
1112 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1113 INT line_count = es->line_count;
1114 INT orig_net_length;
1115 RECT rc;
1116
1117 if (istart == iend && delta == 0)
1118 return;
1119
1120 dc = GetDC(es->hwndSelf);
1121 if (es->font)
1122 old_font = SelectObject(dc, es->font);
1123
1124 previous_line = NULL;
1125 current_line = es->first_line_def;
1126
1127 /* Find starting line. istart must lie inside an existing line or
1128 * at the end of buffer */
1129 do {
1130 if (istart < current_line->index + current_line->length ||
1131 current_line->ending == END_0)
1132 break;
1133
1134 previous_line = current_line;
1135 current_line = current_line->next;
1136 line_index++;
1137 } while (current_line);
1138
1139 if (!current_line) /* Error occurred start is not inside previous buffer */
1140 {
1141 FIXME(" modification occurred outside buffer\n");
1142 ReleaseDC(es->hwndSelf, dc);
1143 return;
1144 }
1145
1146 /* Remember start of modifications in order to calculate update region */
1147 nstart_line = line_index;
1148 nstart_index = current_line->index;
1149
1150 /* We must start to reformat from the previous line since the modifications
1151 * may have caused the line to wrap upwards. */
1152 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1153 {
1154 line_index--;
1155 current_line = previous_line;
1156 }
1157 start_line = current_line;
1158
1159 fw = es->format_rect.right - es->format_rect.left;
1160 current_position = es->text + current_line->index;
1161 do {
1162 if (current_line != start_line)
1163 {
1164 if (!current_line || current_line->index + delta > current_position - es->text)
1165 {
1166 /* The buffer has been expanded, create a new line and
1167 insert it into the link list */
1168 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1169 new_line->next = previous_line->next;
1170 previous_line->next = new_line;
1171 current_line = new_line;
1172 es->line_count++;
1173 }
1174 else if (current_line->index + delta < current_position - es->text)
1175 {
1176 /* The previous line merged with this line so we delete this extra entry */
1177 previous_line->next = current_line->next;
1178 HeapFree(GetProcessHeap(), 0, current_line);
1179 current_line = previous_line->next;
1180 es->line_count--;
1181 continue;
1182 }
1183 else /* current_line->index + delta == current_position */
1184 {
1185 if (current_position - es->text > iend)
1186 break; /* We reached end of line modifications */
1187 /* else recalulate this line */
1188 }
1189 }
1190
1191 current_line->index = current_position - es->text;
1192 orig_net_length = current_line->net_length;
1193
1194 /* Find end of line */
1195 cp = current_position;
1196 while (*cp) {
1197 if (*cp == '\n') break;
1198 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1199 break;
1200 cp++;
1201 }
1202
1203 /* Mark type of line termination */
1204 if (!(*cp)) {
1205 current_line->ending = END_0;
1206 current_line->net_length = strlenW(current_position);
1207 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1208 current_line->ending = END_SOFT;
1209 current_line->net_length = cp - current_position - 1;
1210 } else if (*cp == '\n') {
1211 current_line->ending = END_RICH;
1212 current_line->net_length = cp - current_position;
1213 } else {
1214 current_line->ending = END_HARD;
1215 current_line->net_length = cp - current_position;
1216 }
1217
1218 /* Calculate line width */
1219 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1220 current_position, current_line->net_length,
1221 es->tabs_count, es->tabs));
1222
1223 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1224 if (!(es->style & ES_AUTOHSCROLL)) {
1225 if (current_line->width > fw) {
1226 INT next = 0;
1227 INT prev;
1228 do {
1229 prev = next;
1230 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1231 prev + 1, current_line->net_length, WB_RIGHT);
1232 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1233 current_position, next, es->tabs_count, es->tabs));
1234 } while (current_line->width <= fw);
1235 if (!prev) { /* Didn't find a line break so force a break */
1236 next = 0;
1237 do {
1238 prev = next;
1239 next++;
1240 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1241 current_position, next, es->tabs_count, es->tabs));
1242 } while (current_line->width <= fw);
1243 if (!prev)
1244 prev = 1;
1245 }
1246
1247 /* If the first line we are calculating, wrapped before istart, we must
1248 * adjust istart in order for this to be reflected in the update region. */
1249 if (current_line->index == nstart_index && istart > current_line->index + prev)
1250 istart = current_line->index + prev;
1251 /* else if we are updating the previous line before the first line we
1252 * are re-calculating and it expanded */
1253 else if (current_line == start_line &&
1254 current_line->index != nstart_index && orig_net_length < prev)
1255 {
1256 /* Line expanded due to an upwards line wrap so we must partially include
1257 * previous line in update region */
1258 nstart_line = line_index;
1259 nstart_index = current_line->index;
1260 istart = current_line->index + orig_net_length;
1261 }
1262
1263 current_line->net_length = prev;
1264 current_line->ending = END_WRAP;
1265 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1266 current_line->net_length, es->tabs_count, es->tabs));
1267 }
1268 else if (orig_net_length < current_line->net_length &&
1269 current_line == start_line &&
1270 current_line->index != nstart_index) {
1271 /* The previous line expanded but it's still not as wide as the client rect */
1272 /* The expansion is due to an upwards line wrap so we must partially include
1273 it in the update region */
1274 nstart_line = line_index;
1275 nstart_index = current_line->index;
1276 istart = current_line->index + orig_net_length;
1277 }
1278 }
1279
1280
1281 /* Adjust length to include line termination */
1282 switch (current_line->ending) {
1283 case END_SOFT:
1284 current_line->length = current_line->net_length + 3;
1285 break;
1286 case END_RICH:
1287 current_line->length = current_line->net_length + 1;
1288 break;
1289 case END_HARD:
1290 current_line->length = current_line->net_length + 2;
1291 break;
1292 case END_WRAP:
1293 case END_0:
1294 current_line->length = current_line->net_length;
1295 break;
1296 }
1297 es->text_width = max(es->text_width, current_line->width);
1298 current_position += current_line->length;
1299 previous_line = current_line;
1300 current_line = current_line->next;
1301 line_index++;
1302 } while (previous_line->ending != END_0);
1303
1304 /* Finish adjusting line indexes by delta or remove hanging lines */
1305 if (previous_line->ending == END_0)
1306 {
1307 LINEDEF *pnext = NULL;
1308
1309 previous_line->next = NULL;
1310 while (current_line)
1311 {
1312 pnext = current_line->next;
1313 HeapFree(GetProcessHeap(), 0, current_line);
1314 current_line = pnext;
1315 es->line_count--;
1316 }
1317 }
1318 else if (delta != 0)
1319 {
1320 while (current_line)
1321 {
1322 current_line->index += delta;
1323 current_line = current_line->next;
1324 }
1325 }
1326
1327 /* Calculate rest of modification rectangle */
1328 if (hrgn)
1329 {
1330 HRGN tmphrgn;
1331 /*
1332 * We calculate two rectangles. One for the first line which may have
1333 * an indent with respect to the format rect. The other is a format-width
1334 * rectangle that spans the rest of the lines that changed or moved.
1335 */
1336 rc.top = es->format_rect.top + nstart_line * es->line_height -
1337 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1338 rc.bottom = rc.top + es->line_height;
1339 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1340 rc.left = es->format_rect.left;
1341 else
1342 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1343 es->text + nstart_index, istart - nstart_index,
1344 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1345 rc.right = es->format_rect.right;
1346 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1347
1348 rc.top = rc.bottom;
1349 rc.left = es->format_rect.left;
1350 rc.right = es->format_rect.right;
1351 /*
1352 * If lines were added or removed we must re-paint the remainder of the
1353 * lines since the remaining lines were either shifted up or down.
1354 */
1355 if (line_count < es->line_count) /* We added lines */
1356 rc.bottom = es->line_count * es->line_height;
1357 else if (line_count > es->line_count) /* We removed lines */
1358 rc.bottom = line_count * es->line_height;
1359 else
1360 rc.bottom = line_index * es->line_height;
1361 rc.bottom += es->format_rect.top;
1362 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1363 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1364 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1365 DeleteObject(tmphrgn);
1366 }
1367
1368 if (es->font)
1369 SelectObject(dc, old_font);
1370
1371 ReleaseDC(es->hwndSelf, dc);
1372 }
1373
1374 /*********************************************************************
1375 *
1376 * EDIT_CalcLineWidth_SL
1377 *
1378 */
1379 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1380 {
1381 SIZE size;
1382 LPWSTR text;
1383 HDC dc;
1384 HFONT old_font = 0;
1385
1386 text = EDIT_GetPasswordPointer_SL(es);
1387
1388 dc = GetDC(es->hwndSelf);
1389 if (es->font)
1390 old_font = SelectObject(dc, es->font);
1391
1392 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1393
1394 if (es->font)
1395 SelectObject(dc, old_font);
1396 ReleaseDC(es->hwndSelf, dc);
1397
1398 if (es->style & ES_PASSWORD)
1399 HeapFree(GetProcessHeap(), 0, text);
1400
1401 es->text_width = size.cx;
1402 }
1403
1404 /*********************************************************************
1405 *
1406 * EDIT_CallWordBreakProc
1407 *
1408 * Call appropriate WordBreakProc (internal or external).
1409 *
1410 * Note: The "start" argument should always be an index referring
1411 * to es->text. The actual wordbreak proc might be
1412 * 16 bit, so we can't always pass any 32 bit LPSTR.
1413 * Hence we assume that es->text is the buffer that holds
1414 * the string under examination (we can decide this for ourselves).
1415 *
1416 */
1417 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1418 {
1419 INT ret;
1420
1421 if (es->word_break_proc16) {
1422 HGLOBAL16 hglob16;
1423 SEGPTR segptr;
1424 INT countA;
1425 WORD args[5];
1426 DWORD result;
1427
1428 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1429 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1430 segptr = WOWGlobalLock16(hglob16);
1431 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1432 args[4] = SELECTOROF(segptr);
1433 args[3] = OFFSETOF(segptr);
1434 args[2] = index;
1435 args[1] = countA;
1436 args[0] = action;
1437 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1438 ret = LOWORD(result);
1439 GlobalUnlock16(hglob16);
1440 GlobalFree16(hglob16);
1441 }
1442 else if (es->word_break_proc)
1443 {
1444 if(es->is_unicode)
1445 {
1446 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1447
1448 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1449 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1450 ret = wbpW(es->text + start, index, count, action);
1451 }
1452 else
1453 {
1454 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1455 INT countA;
1456 CHAR *textA;
1457
1458 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1459 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1460 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1461 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1462 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1463 ret = wbpA(textA, index, countA, action);
1464 HeapFree(GetProcessHeap(), 0, textA);
1465 }
1466 }
1467 else
1468 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1469
1470 return ret;
1471 }
1472
1473
1474 /*********************************************************************
1475 *
1476 * EDIT_CharFromPos
1477 *
1478 * Beware: This is not the function called on EM_CHARFROMPOS
1479 * The position _can_ be outside the formatting / client
1480 * rectangle
1481 * The return value is only the character index
1482 *
1483 */
1484 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1485 {
1486 INT index;
1487 HDC dc;
1488 HFONT old_font = 0;
1489 INT x_high = 0, x_low = 0;
1490
1491 if (es->style & ES_MULTILINE) {
1492 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1493 INT line_index = 0;
1494 LINEDEF *line_def = es->first_line_def;
1495 INT low, high;
1496 while ((line > 0) && line_def->next) {
1497 line_index += line_def->length;
1498 line_def = line_def->next;
1499 line--;
1500 }
1501 x += es->x_offset - es->format_rect.left;
1502 if (es->style & ES_RIGHT)
1503 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1504 else if (es->style & ES_CENTER)
1505 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1506 if (x >= line_def->width) {
1507 if (after_wrap)
1508 *after_wrap = (line_def->ending == END_WRAP);
1509 return line_index + line_def->net_length;
1510 }
1511 if (x <= 0) {
1512 if (after_wrap)
1513 *after_wrap = FALSE;
1514 return line_index;
1515 }
1516 dc = GetDC(es->hwndSelf);
1517 if (es->font)
1518 old_font = SelectObject(dc, es->font);
1519 low = line_index;
1520 high = line_index + line_def->net_length + 1;
1521 while (low < high - 1)
1522 {
1523 INT mid = (low + high) / 2;
1524 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1525 if (x_now > x) {
1526 high = mid;
1527 x_high = x_now;
1528 } else {
1529 low = mid;
1530 x_low = x_now;
1531 }
1532 }
1533 if (abs(x_high - x) + 1 <= abs(x_low - x))
1534 index = high;
1535 else
1536 index = low;
1537
1538 if (after_wrap)
1539 *after_wrap = ((index == line_index + line_def->net_length) &&
1540 (line_def->ending == END_WRAP));
1541 } else {
1542 LPWSTR text;
1543 SIZE size;
1544 if (after_wrap)
1545 *after_wrap = FALSE;
1546 x -= es->format_rect.left;
1547 if (!x)
1548 return es->x_offset;
1549
1550 if (!es->x_offset)
1551 {
1552 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1553 if (es->style & ES_RIGHT)
1554 x -= indent;
1555 else if (es->style & ES_CENTER)
1556 x -= indent / 2;
1557 }
1558
1559 text = EDIT_GetPasswordPointer_SL(es);
1560 dc = GetDC(es->hwndSelf);
1561 if (es->font)
1562 old_font = SelectObject(dc, es->font);
1563 if (x < 0)
1564 {
1565 INT low = 0;
1566 INT high = es->x_offset;
1567 while (low < high - 1)
1568 {
1569 INT mid = (low + high) / 2;
1570 GetTextExtentPoint32W( dc, text + mid,
1571 es->x_offset - mid, &size );
1572 if (size.cx > -x) {
1573 low = mid;
1574 x_low = size.cx;
1575 } else {
1576 high = mid;
1577 x_high = size.cx;
1578 }
1579 }
1580 if (abs(x_high + x) <= abs(x_low + x) + 1)
1581 index = high;
1582 else
1583 index = low;
1584 }
1585 else
1586 {
1587 INT low = es->x_offset;
1588 INT high = get_text_length(es) + 1;
1589 while (low < high - 1)
1590 {
1591 INT mid = (low + high) / 2;
1592 GetTextExtentPoint32W( dc, text + es->x_offset,
1593 mid - es->x_offset, &size );
1594 if (size.cx > x) {
1595 high = mid;
1596 x_high = size.cx;
1597 } else {
1598 low = mid;
1599 x_low = size.cx;
1600 }
1601 }
1602 if (abs(x_high - x) <= abs(x_low - x) + 1)
1603 index = high;
1604 else
1605 index = low;
1606 }
1607 if (es->style & ES_PASSWORD)
1608 HeapFree(GetProcessHeap(), 0, text);
1609 }
1610 if (es->font)
1611 SelectObject(dc, old_font);
1612 ReleaseDC(es->hwndSelf, dc);
1613 return index;
1614 }
1615
1616
1617 /*********************************************************************
1618 *
1619 * EDIT_ConfinePoint
1620 *
1621 * adjusts the point to be within the formatting rectangle
1622 * (so CharFromPos returns the nearest _visible_ character)
1623 *
1624 */
1625 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
1626 {
1627 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1628 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1629 }
1630
1631
1632 /*********************************************************************
1633 *
1634 * EDIT_GetLineRect
1635 *
1636 * Calculates the bounding rectangle for a line from a starting
1637 * column to an ending column.
1638 *
1639 */
1640 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1641 {
1642 INT line_index = EDIT_EM_LineIndex(es, line);
1643
1644 if (es->style & ES_MULTILINE)
1645 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1646 else
1647 rc->top = es->format_rect.top;
1648 rc->bottom = rc->top + es->line_height;
1649 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1650 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1651 }
1652
1653
1654 /*********************************************************************
1655 *
1656 * EDIT_GetPasswordPointer_SL
1657 *
1658 * note: caller should free the (optionally) allocated buffer
1659 *
1660 */
1661 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1662 {
1663 if (es->style & ES_PASSWORD) {
1664 INT len = get_text_length(es);
1665 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1666 text[len] = '\0';
1667 while(len) text[--len] = es->password_char;
1668 return text;
1669 } else
1670 return es->text;
1671 }
1672
1673
1674 /*********************************************************************
1675 *
1676 * EDIT_LockBuffer
1677 *
1678 * This acts as a LocalLock16(), but it locks only once. This way
1679 * you can call it whenever you like, without unlocking.
1680 *
1681 * Initially the edit control allocates a HLOCAL32 buffer
1682 * (32 bit linear memory handler). However, 16 bit application
1683 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1684 * handler). From that moment on we have to keep using this 16 bit memory
1685 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1686 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1687 * conversion.
1688 *
1689 */
1690 static void EDIT_LockBuffer(EDITSTATE *es)
1691 {
1692 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
1693 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1694
1695 if (!es->text) {
1696 CHAR *textA = NULL;
1697 UINT countA = 0;
1698 BOOL _16bit = FALSE;
1699
1700 if(es->hloc32W)
1701 {
1702 if(es->hloc32A)
1703 {
1704 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1705 textA = LocalLock(es->hloc32A);
1706 countA = strlen(textA) + 1;
1707 }
1708 else if(es->hloc16)
1709 {
1710 HANDLE16 oldDS = stack16->ds;
1711 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1712 stack16->ds = hInstance;
1713 textA = MapSL(LocalLock16(es->hloc16));
1714 stack16->ds = oldDS;
1715 countA = strlen(textA) + 1;
1716 _16bit = TRUE;
1717 }
1718 }
1719 else {
1720 ERR("no buffer ... please report\n");
1721 return;
1722 }
1723
1724 if(textA)
1725 {
1726 HLOCAL hloc32W_new;
1727 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1728 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1729 if(countW_new > es->buffer_size + 1)
1730 {
1731 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1732 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1733 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1734 if(hloc32W_new)
1735 {
1736 es->hloc32W = hloc32W_new;
1737 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1738 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1739 }
1740 else
1741 WARN("FAILED! Will synchronize partially\n");
1742 }
1743 }
1744
1745 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1746 es->text = LocalLock(es->hloc32W);
1747
1748 if(textA)
1749 {
1750 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1751 if(_16bit)
1752 {
1753 HANDLE16 oldDS = stack16->ds;
1754 stack16->ds = hInstance;
1755 LocalUnlock16(es->hloc16);
1756 stack16->ds = oldDS;
1757 }
1758 else
1759 LocalUnlock(es->hloc32A);
1760 }
1761 }
1762 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1763 es->lock_count++;
1764 }
1765
1766
1767 /*********************************************************************
1768 *
1769 * EDIT_SL_InvalidateText
1770 *
1771 * Called from EDIT_InvalidateText().
1772 * Does the job for single-line controls only.
1773 *
1774 */
1775 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1776 {
1777 RECT line_rect;
1778 RECT rc;
1779
1780 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1781 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1782 EDIT_UpdateText(es, &rc, TRUE);
1783 }
1784
1785
1786 /*********************************************************************
1787 *
1788 * EDIT_ML_InvalidateText
1789 *
1790 * Called from EDIT_InvalidateText().
1791 * Does the job for multi-line controls only.
1792 *
1793 */
1794 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1795 {
1796 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1797 INT sl = EDIT_EM_LineFromChar(es, start);
1798 INT el = EDIT_EM_LineFromChar(es, end);
1799 INT sc;
1800 INT ec;
1801 RECT rc1;
1802 RECT rcWnd;
1803 RECT rcLine;
1804 RECT rcUpdate;
1805 INT l;
1806
1807 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1808 return;
1809
1810 sc = start - EDIT_EM_LineIndex(es, sl);
1811 ec = end - EDIT_EM_LineIndex(es, el);
1812 if (sl < es->y_offset) {
1813 sl = es->y_offset;
1814 sc = 0;
1815 }
1816 if (el > es->y_offset + vlc) {
1817 el = es->y_offset + vlc;
1818 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1819 }
1820 GetClientRect(es->hwndSelf, &rc1);
1821 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1822 if (sl == el) {
1823 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1824 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1825 EDIT_UpdateText(es, &rcUpdate, TRUE);
1826 } else {
1827 EDIT_GetLineRect(es, sl, sc,
1828 EDIT_EM_LineLength(es,
1829 EDIT_EM_LineIndex(es, sl)),
1830 &rcLine);
1831 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1832 EDIT_UpdateText(es, &rcUpdate, TRUE);
1833 for (l = sl + 1 ; l < el ; l++) {
1834 EDIT_GetLineRect(es, l, 0,
1835 EDIT_EM_LineLength(es,
1836 EDIT_EM_LineIndex(es, l)),
1837 &rcLine);
1838 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1839 EDIT_UpdateText(es, &rcUpdate, TRUE);
1840 }
1841 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1842 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1843 EDIT_UpdateText(es, &rcUpdate, TRUE);
1844 }
1845 }
1846
1847
1848 /*********************************************************************
1849 *
1850 * EDIT_InvalidateText
1851 *
1852 * Invalidate the text from offset start up to, but not including,
1853 * offset end. Useful for (re)painting the selection.
1854 * Regions outside the linewidth are not invalidated.
1855 * end == -1 means end == TextLength.
1856 * start and end need not be ordered.
1857 *
1858 */
1859 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1860 {
1861 if (end == start)
1862 return;
1863
1864 if (end == -1)
1865 end = get_text_length(es);
1866
1867 if (end < start) {
1868 INT tmp = start;
1869 start = end;
1870 end = tmp;
1871 }
1872
1873 if (es->style & ES_MULTILINE)
1874 EDIT_ML_InvalidateText(es, start, end);
1875 else
1876 EDIT_SL_InvalidateText(es, start, end);
1877 }
1878
1879
1880 /*********************************************************************
1881 *
1882 * EDIT_MakeFit
1883 *
1884 * Try to fit size + 1 characters in the buffer.
1885 */
1886 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1887 {
1888 HLOCAL hNew32W;
1889
1890 if (size <= es->buffer_size)
1891 return TRUE;
1892
1893 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1894
1895 /* Force edit to unlock it's buffer. es->text now NULL */
1896 EDIT_UnlockBuffer(es, TRUE);
1897
1898 if (es->hloc32W) {
1899 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1900 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1901 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1902 es->hloc32W = hNew32W;
1903 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1904 }
1905 }
1906
1907 EDIT_LockBuffer(es);
1908
1909 if (es->buffer_size < size) {
1910 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1911 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1912 return FALSE;
1913 } else {
1914 TRACE("We now have %d+1\n", es->buffer_size);
1915 return TRUE;
1916 }
1917 }
1918
1919
1920 /*********************************************************************
1921 *
1922 * EDIT_MakeUndoFit
1923 *
1924 * Try to fit size + 1 bytes in the undo buffer.
1925 *
1926 */
1927 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1928 {
1929 UINT alloc_size;
1930
1931 if (size <= es->undo_buffer_size)
1932 return TRUE;
1933
1934 TRACE("trying to ReAlloc to %d+1\n", size);
1935
1936 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1937 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1938 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1939 return TRUE;
1940 }
1941 else
1942 {
1943 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1944 return FALSE;
1945 }
1946 }
1947
1948
1949 /*********************************************************************
1950 *
1951 * EDIT_MoveBackward
1952 *
1953 */
1954 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1955 {
1956 INT e = es->selection_end;
1957
1958 if (e) {
1959 e--;
1960 if ((es->style & ES_MULTILINE) && e &&
1961 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1962 e--;
1963 if (e && (es->text[e - 1] == '\r'))
1964 e--;
1965 }
1966 }
1967 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1968 EDIT_EM_ScrollCaret(es);
1969 }
1970
1971
1972 /*********************************************************************
1973 *
1974 * EDIT_MoveDown_ML
1975 *
1976 * Only for multi line controls
1977 * Move the caret one line down, on a column with the nearest
1978 * x coordinate on the screen (might be a different column).
1979 *
1980 */
1981 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1982 {
1983 INT s = es->selection_start;
1984 INT e = es->selection_end;
1985 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1986 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1987 INT x = (short)LOWORD(pos);
1988 INT y = (short)HIWORD(pos);
1989
1990 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1991 if (!extend)
1992 s = e;
1993 EDIT_EM_SetSel(es, s, e, after_wrap);
1994 EDIT_EM_ScrollCaret(es);
1995 }
1996
1997
1998 /*********************************************************************
1999 *
2000 * EDIT_MoveEnd
2001 *
2002 */
2003 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
2004 {
2005 BOOL after_wrap = FALSE;
2006 INT e;
2007
2008 /* Pass a high value in x to make sure of receiving the end of the line */
2009 if (es->style & ES_MULTILINE)
2010 e = EDIT_CharFromPos(es, 0x3fffffff,
2011 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
2012 else
2013 e = get_text_length(es);
2014 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
2015 EDIT_EM_ScrollCaret(es);
2016 }
2017
2018
2019 /*********************************************************************
2020 *
2021 * EDIT_MoveForward
2022 *
2023 */
2024 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2025 {
2026 INT e = es->selection_end;
2027
2028 if (es->text[e]) {
2029 e++;
2030 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2031 if (es->text[e] == '\n')
2032 e++;
2033 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2034 e += 2;
2035 }
2036 }
2037 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2038 EDIT_EM_ScrollCaret(es);
2039 }
2040
2041
2042 /*********************************************************************
2043 *
2044 * EDIT_MoveHome
2045 *
2046 * Home key: move to beginning of line.
2047 *
2048 */
2049 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
2050 {
2051 INT e;
2052
2053 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2054 if (es->style & ES_MULTILINE)
2055 e = EDIT_CharFromPos(es, -es->x_offset,
2056 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2057 else
2058 e = 0;
2059 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2060 EDIT_EM_ScrollCaret(es);
2061 }
2062
2063
2064 /*********************************************************************
2065 *
2066 * EDIT_MovePageDown_ML
2067 *
2068 * Only for multi line controls
2069 * Move the caret one page down, on a column with the nearest
2070 * x coordinate on the screen (might be a different column).
2071 *
2072 */
2073 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2074 {
2075 INT s = es->selection_start;
2076 INT e = es->selection_end;
2077 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2078 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2079 INT x = (short)LOWORD(pos);
2080 INT y = (short)HIWORD(pos);
2081
2082 e = EDIT_CharFromPos(es, x,
2083 y + (es->format_rect.bottom - es->format_rect.top),
2084 &after_wrap);
2085 if (!extend)
2086 s = e;
2087 EDIT_EM_SetSel(es, s, e, after_wrap);
2088 EDIT_EM_ScrollCaret(es);
2089 }
2090
2091
2092 /*********************************************************************
2093 *
2094 * EDIT_MovePageUp_ML
2095 *
2096 * Only for multi line controls
2097 * Move the caret one page up, on a column with the nearest
2098 * x coordinate on the screen (might be a different column).
2099 *
2100 */
2101 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2102 {
2103 INT s = es->selection_start;
2104 INT e = es->selection_end;
2105 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2106 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2107 INT x = (short)LOWORD(pos);
2108 INT y = (short)HIWORD(pos);
2109
2110 e = EDIT_CharFromPos(es, x,
2111 y - (es->format_rect.bottom - es->format_rect.top),
2112 &after_wrap);
2113 if (!extend)
2114 s = e;
2115 EDIT_EM_SetSel(es, s, e, after_wrap);
2116 EDIT_EM_ScrollCaret(es);
2117 }
2118
2119
2120 /*********************************************************************
2121 *
2122 * EDIT_MoveUp_ML
2123 *
2124 * Only for multi line controls
2125 * Move the caret one line up, on a column with the nearest
2126 * x coordinate on the screen (might be a different column).
2127 *
2128 */
2129 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2130 {
2131 INT s = es->selection_start;
2132 INT e = es->selection_end;
2133 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2134 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2135 INT x = (short)LOWORD(pos);
2136 INT y = (short)HIWORD(pos);
2137
2138 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2139 if (!extend)
2140 s = e;
2141 EDIT_EM_SetSel(es, s, e, after_wrap);
2142 EDIT_EM_ScrollCaret(es);
2143 }
2144
2145
2146 /*********************************************************************
2147 *
2148 * EDIT_MoveWordBackward
2149 *
2150 */
2151 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2152 {
2153 INT s = es->selection_start;
2154 INT e = es->selection_end;
2155 INT l;
2156 INT ll;
2157 INT li;
2158
2159 l = EDIT_EM_LineFromChar(es, e);
2160 ll = EDIT_EM_LineLength(es, e);
2161 li = EDIT_EM_LineIndex(es, l);
2162 if (e - li == 0) {
2163 if (l) {
2164 li = EDIT_EM_LineIndex(es, l - 1);
2165 e = li + EDIT_EM_LineLength(es, li);
2166 }
2167 } else {
2168 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
2169 }
2170 if (!extend)
2171 s = e;
2172 EDIT_EM_SetSel(es, s, e, FALSE);
2173 EDIT_EM_ScrollCaret(es);
2174 }
2175
2176
2177 /*********************************************************************
2178 *
2179 * EDIT_MoveWordForward
2180 *
2181 */
2182 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2183 {
2184 INT s = es->selection_start;
2185 INT e = es->selection_end;
2186 INT l;
2187 INT ll;
2188 INT li;
2189
2190 l = EDIT_EM_LineFromChar(es, e);
2191 ll = EDIT_EM_LineLength(es, e);
2192 li = EDIT_EM_LineIndex(es, l);
2193 if (e - li == ll) {
2194 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2195 e = EDIT_EM_LineIndex(es, l + 1);
2196 } else {
2197 e = li + EDIT_CallWordBreakProc(es,
2198 li, e - li + 1, ll, WB_RIGHT);
2199 }
2200 if (!extend)
2201 s = e;
2202 EDIT_EM_SetSel(es, s, e, FALSE);
2203 EDIT_EM_ScrollCaret(es);
2204 }
2205
2206
2207 /*********************************************************************
2208 *
2209 * EDIT_PaintLine
2210 *
2211 */
2212 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2213 {
2214 INT s = es->selection_start;
2215 INT e = es->selection_end;
2216 INT li;
2217 INT ll;
2218 INT x;
2219 INT y;
2220 LRESULT pos;
2221
2222 if (es->style & ES_MULTILINE) {
2223 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2224 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2225 return;
2226 } else if (line)
2227 return;
2228
2229 TRACE("line=%d\n", line);
2230
2231 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2232 x = (short)LOWORD(pos);
2233 y = (short)HIWORD(pos);
2234 li = EDIT_EM_LineIndex(es, line);
2235 ll = EDIT_EM_LineLength(es, li);
2236 s = min(es->selection_start, es->selection_end);
2237 e = max(es->selection_start, es->selection_end);
2238 s = min(li + ll, max(li, s));
2239 e = min(li + ll, max(li, e));
2240 if (rev && (s != e) &&
2241 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2242 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2243 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2244 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2245 } else
2246 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2247 }
2248
2249
2250 /*********************************************************************
2251 *
2252 * EDIT_PaintText
2253 *
2254 */
2255 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2256 {
2257 COLORREF BkColor;
2258 COLORREF TextColor;
2259 LOGFONTW underline_font;
2260 HFONT hUnderline = 0;
2261 HFONT old_font = 0;
2262 INT ret;
2263 INT li;
2264 INT BkMode;
2265 SIZE size;
2266
2267 if (!count)
2268 return 0;
2269 BkMode = GetBkMode(dc);
2270 BkColor = GetBkColor(dc);
2271 TextColor = GetTextColor(dc);
2272 if (rev) {
2273 if (es->composition_len == 0)
2274 {
2275 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2276 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2277 SetBkMode( dc, OPAQUE);
2278 }
2279 else
2280 {
2281 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2282 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2283 underline_font.lfUnderline = TRUE;
2284 hUnderline = CreateFontIndirectW(&underline_font);
2285 old_font = SelectObject(dc,hUnderline);
2286 }
2287 }
2288 li = EDIT_EM_LineIndex(es, line);
2289 if (es->style & ES_MULTILINE) {
2290 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2291 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2292 } else {
2293 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2294 TextOutW(dc, x, y, text + li + col, count);
2295 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2296 ret = size.cx;
2297 if (es->style & ES_PASSWORD)
2298 HeapFree(GetProcessHeap(), 0, text);
2299 }
2300 if (rev) {
2301 if (es->composition_len == 0)
2302 {
2303 SetBkColor(dc, BkColor);
2304 SetTextColor(dc, TextColor);
2305 SetBkMode( dc, BkMode);
2306 }
2307 else
2308 {
2309 if (old_font)
2310 SelectObject(dc,old_font);
2311 if (hUnderline)
2312 DeleteObject(hUnderline);
2313 }
2314 }
2315 return ret;
2316 }
2317
2318
2319 /*********************************************************************
2320 *
2321 * EDIT_SetCaretPos
2322 *
2323 */
2324 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2325 BOOL after_wrap)
2326 {
2327 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2328 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2329 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2330 }
2331
2332
2333 /*********************************************************************
2334 *
2335 * EDIT_AdjustFormatRect
2336 *
2337 * Adjusts the format rectangle for the current font and the
2338 * current client rectangle.
2339 *
2340 */
2341 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2342 {
2343 RECT ClientRect;
2344
2345 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2346 if (es->style & ES_MULTILINE)
2347 {
2348 INT fw, vlc, max_x_offset, max_y_offset;
2349
2350 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2351 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2352
2353 /* correct es->x_offset */
2354 fw = es->format_rect.right - es->format_rect.left;
2355 max_x_offset = es->text_width - fw;
2356 if(max_x_offset < 0) max_x_offset = 0;
2357 if(es->x_offset > max_x_offset)
2358 es->x_offset = max_x_offset;
2359
2360 /* correct es->y_offset */
2361 max_y_offset = es->line_count - vlc;
2362 if(max_y_offset < 0) max_y_offset = 0;
2363 if(es->y_offset > max_y_offset)
2364 es->y_offset = max_y_offset;
2365
2366 /* force scroll info update */
2367 EDIT_UpdateScrollInfo(es);
2368 }
2369 else
2370 /* Windows doesn't care to fix text placement for SL controls */
2371 es->format_rect.bottom = es->format_rect.top + es->line_height;
2372
2373 /* Always stay within the client area */
2374 GetClientRect(es->hwndSelf, &ClientRect);
2375 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2376
2377 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2378 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2379
2380 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2381 }
2382
2383
2384 /*********************************************************************
2385 *
2386 * EDIT_SetRectNP
2387 *
2388 * note: this is not (exactly) the handler called on EM_SETRECTNP
2389 * it is also used to set the rect of a single line control
2390 *
2391 */
2392 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2393 {
2394 LONG_PTR ExStyle;
2395 INT bw, bh;
2396 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2397
2398 CopyRect(&es->format_rect, rc);
2399
2400 if (ExStyle & WS_EX_CLIENTEDGE) {
2401 es->format_rect.left++;
2402 es->format_rect.right--;
2403
2404 if (es->format_rect.bottom - es->format_rect.top
2405 >= es->line_height + 2)
2406 {
2407 es->format_rect.top++;
2408 es->format_rect.bottom--;
2409 }
2410 }
2411 else if (es->style & WS_BORDER) {
2412 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2413 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2414 es->format_rect.left += bw;
2415 es->format_rect.right -= bw;
2416 if (es->format_rect.bottom - es->format_rect.top
2417 >= es->line_height + 2 * bh)
2418 {
2419 es->format_rect.top += bh;
2420 es->format_rect.bottom -= bh;
2421 }
2422 }
2423
2424 es->format_rect.left += es->left_margin;
2425 es->format_rect.right -= es->right_margin;
2426 EDIT_AdjustFormatRect(es);
2427 }
2428
2429
2430 /*********************************************************************
2431 *
2432 * EDIT_UnlockBuffer
2433 *
2434 */
2435 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2436 {
2437
2438 /* Edit window might be already destroyed */
2439 if(!IsWindow(es->hwndSelf))
2440 {
2441 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2442 return;
2443 }
2444
2445 if (!es->lock_count) {
2446 ERR("lock_count == 0 ... please report\n");
2447 return;
2448 }
2449 if (!es->text) {
2450 ERR("es->text == 0 ... please report\n");
2451 return;
2452 }
2453
2454 if (force || (es->lock_count == 1)) {
2455 if (es->hloc32W) {
2456 CHAR *textA = NULL;
2457 UINT countA = 0;
2458 UINT countW = get_text_length(es) + 1;
2459 STACK16FRAME* stack16 = NULL;
2460 HANDLE16 oldDS = 0;
2461
2462 if(es->hloc32A)
2463 {
2464 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2465 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2466 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2467 countA = LocalSize(es->hloc32A);
2468 if(countA_new > countA)
2469 {
2470 HLOCAL hloc32A_new;
2471 UINT alloc_size = ROUND_TO_GROW(countA_new);
2472 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2473 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2474 if(hloc32A_new)
2475 {
2476 es->hloc32A = hloc32A_new;
2477 countA = LocalSize(hloc32A_new);
2478 TRACE("Real new size %d bytes\n", countA);
2479 }
2480 else
2481 WARN("FAILED! Will synchronize partially\n");
2482 }
2483 textA = LocalLock(es->hloc32A);
2484 }
2485 else if(es->hloc16)
2486 {
2487 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2488
2489 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2490 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2491
2492 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2493 oldDS = stack16->ds;
2494 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2495
2496 countA = LocalSize16(es->hloc16);
2497 if(countA_new > countA)
2498 {
2499 HLOCAL16 hloc16_new;
2500 UINT alloc_size = ROUND_TO_GROW(countA_new);
2501 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2502 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2503 if(hloc16_new)
2504 {
2505 es->hloc16 = hloc16_new;
2506 countA = LocalSize16(hloc16_new);
2507 TRACE("Real new size %d bytes\n", countA);
2508 }
2509 else
2510 WARN("FAILED! Will synchronize partially\n");
2511 }
2512 textA = MapSL(LocalLock16(es->hloc16));
2513 }
2514
2515 if(textA)
2516 {
2517 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2518 if(stack16)
2519 LocalUnlock16(es->hloc16);
2520 else
2521 LocalUnlock(es->hloc32A);
2522 }
2523
2524 if (stack16) stack16->ds = oldDS;
2525 LocalUnlock(es->hloc32W);
2526 es->text = NULL;
2527 }
2528 else {
2529 ERR("no buffer ... please report\n");
2530 return;
2531 }
2532 }
2533 es->lock_count--;
2534 }
2535
2536
2537 /*********************************************************************
2538 *
2539 * EDIT_UpdateScrollInfo
2540 *
2541 */
2542 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2543 {
2544 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2545 {
2546 SCROLLINFO si;
2547 si.cbSize = sizeof(SCROLLINFO);
2548 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2549 si.nMin = 0;
2550 si.nMax = es->line_count - 1;
2551 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2552 si.nPos = es->y_offset;
2553 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2554 si.nMin, si.nMax, si.nPage, si.nPos);
2555 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2556 }
2557
2558 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2559 {
2560 SCROLLINFO si;
2561 si.cbSize = sizeof(SCROLLINFO);
2562 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2563 si.nMin = 0;
2564 si.nMax = es->text_width - 1;
2565 si.nPage = es->format_rect.right - es->format_rect.left;
2566 si.nPos = es->x_offset;
2567 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2568 si.nMin, si.nMax, si.nPage, si.nPos);
2569 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2570 }
2571 }
2572
2573 /*********************************************************************
2574 *
2575 * EDIT_WordBreakProc
2576 *
2577 * Find the beginning of words.
2578 * Note: unlike the specs for a WordBreakProc, this function only
2579 * allows to be called without linebreaks between s[0] up to
2580 * s[count - 1]. Remember it is only called
2581 * internally, so we can decide this for ourselves.
2582 *
2583 */
2584 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2585 {
2586 INT ret = 0;
2587
2588 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2589
2590 if(!s) return 0;
2591
2592 switch (action) {
2593 case WB_LEFT:
2594 if (!count)
2595 break;
2596 if (index)
2597 index--;
2598 if (s[index] == ' ') {
2599 while (index && (s[index] == ' '))
2600 index--;
2601 if (index) {
2602 while (index && (s[index] != ' '))
2603 index--;
2604 if (s[index] == ' ')
2605 index++;
2606 }
2607 } else {
2608 while (index && (s[index] != ' '))
2609 index--;
2610 if (s[index] == ' ')
2611 index++;
2612 }
2613 ret = index;
2614 break;
2615 case WB_RIGHT:
2616 if (!count)
2617 break;
2618 if (index)
2619 index--;
2620 if (s[index] == ' ')
2621 while ((index < count) && (s[index] == ' ')) index++;
2622 else {
2623 while (s[index] && (s[index] != ' ') && (index < count))
2624 index++;
2625 while ((s[index] == ' ') && (index < count)) index++;
2626 }
2627 ret = index;
2628 break;
2629 case WB_ISDELIMITER:
2630 ret = (s[index] == ' ');
2631 break;
2632 default:
2633 ERR("unknown action code, please report !\n");
2634 break;
2635 }
2636 return ret;
2637 }
2638
2639
2640 /*********************************************************************
2641 *
2642 * EM_CHARFROMPOS
2643 *
2644 * returns line number (not index) in high-order word of result.
2645 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2646 * to Richedit, not to the edit control. Original documentation is valid.
2647 * FIXME: do the specs mean to return -1 if outside client area or
2648 * if outside formatting rectangle ???
2649 *
2650 */
2651 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2652 {
2653 POINT pt;
2654 RECT rc;
2655 INT index;
2656
2657 pt.x = x;
2658 pt.y = y;
2659 GetClientRect(es->hwndSelf, &rc);
2660 if (!PtInRect(&rc, pt))
2661 return -1;
2662
2663 index = EDIT_CharFromPos(es, x, y, NULL);
2664 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2665 }
2666
2667
2668 /*********************************************************************
2669 *
2670 * EM_FMTLINES
2671 *
2672 * Enable or disable soft breaks.
2673 *
2674 * This means: insert or remove the soft linebreak character (\r\r\n).
2675 * Take care to check if the text still fits the buffer after insertion.
2676 * If not, notify with EN_ERRSPACE.
2677 *
2678 */
2679 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2680 {
2681 es->flags &= ~EF_USE_SOFTBRK;
2682 if (add_eol) {
2683 es->flags |= EF_USE_SOFTBRK;
2684 FIXME("soft break enabled, not implemented\n");
2685 }
2686 return add_eol;
2687 }
2688
2689
2690 /*********************************************************************
2691 *
2692 * EM_GETHANDLE
2693 *
2694 * Hopefully this won't fire back at us.
2695 * We always start with a fixed buffer in the local heap.
2696 * Despite of the documentation says that the local heap is used
2697 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2698 * buffer on the local heap.
2699 *
2700 */
2701 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2702 {
2703 HLOCAL hLocal;
2704
2705 if (!(es->style & ES_MULTILINE))
2706 return 0;
2707
2708 if(es->is_unicode)
2709 hLocal = es->hloc32W;
2710 else
2711 {
2712 if(!es->hloc32A)
2713 {
2714 CHAR *textA;
2715 UINT countA, alloc_size;
2716 TRACE("Allocating 32-bit ANSI alias buffer\n");
2717 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2718 alloc_size = ROUND_TO_GROW(countA);
2719 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2720 {
2721 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2722 return 0;
2723 }
2724 textA = LocalLock(es->hloc32A);
2725 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2726 LocalUnlock(es->hloc32A);
2727 }
2728 hLocal = es->hloc32A;
2729 }
2730
2731 es->flags |= EF_APP_HAS_HANDLE;
2732 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2733 return hLocal;
2734 }
2735
2736
2737 /*********************************************************************
2738 *
2739 * EM_GETHANDLE16
2740 *
2741 * Hopefully this won't fire back at us.
2742 * We always start with a buffer in 32 bit linear memory.
2743 * However, with this message a 16 bit application requests
2744 * a handle of 16 bit local heap memory, where it expects to find
2745 * the text.
2746 * It's a pitty that from this moment on we have to use this
2747 * local heap, because applications may rely on the handle
2748 * in the future.
2749 *
2750 * In this function we'll try to switch to local heap.
2751 */
2752 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2753 {
2754 CHAR *textA;
2755 UINT countA, alloc_size;
2756 STACK16FRAME* stack16;
2757 HANDLE16 oldDS;
2758
2759 if (!(es->style & ES_MULTILINE))
2760 return 0;
2761
2762 if (es->hloc16)
2763 return es->hloc16;
2764
2765 stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
2766 oldDS = stack16->ds;
2767 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2768
2769 if (!LocalHeapSize16()) {
2770
2771 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2772 ERR("could not initialize local heap\n");
2773 goto done;
2774 }
2775 TRACE("local heap initialized\n");
2776 }
2777
2778 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2779 alloc_size = ROUND_TO_GROW(countA);
2780
2781 TRACE("Allocating 16-bit ANSI alias buffer\n");
2782 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2783 ERR("could not allocate new 16 bit buffer\n");
2784 goto done;
2785 }
2786
2787 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2788 ERR("could not lock new 16 bit buffer\n");
2789 LocalFree16(es->hloc16);
2790 es->hloc16 = 0;
2791 goto done;
2792 }
2793
2794 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2795 LocalUnlock16(es->hloc16);
2796 es->flags |= EF_APP_HAS_HANDLE;
2797
2798 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2799
2800 done:
2801 stack16->ds = oldDS;
2802 return es->hloc16;
2803 }
2804
2805
2806 /*********************************************************************
2807 *
2808 * EM_GETLINE
2809 *
2810 */
2811 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2812 {
2813 LPWSTR src;
2814 INT line_len, dst_len;
2815 INT i;
2816
2817 if (es->style & ES_MULTILINE) {
2818 if (line >= es->line_count)
2819 return 0;
2820 } else
2821 line = 0;
2822 i = EDIT_EM_LineIndex(es, line);
2823 src = es->text + i;
2824 line_len = EDIT_EM_LineLength(es, i);
2825 dst_len = *(WORD *)dst;
2826 if(unicode)
2827 {
2828 if(dst_len <= line_len)
2829 {
2830 memcpy(dst, src, dst_len * sizeof(WCHAR));
2831 return dst_len;
2832 }
2833 else /* Append 0 if enough space */
2834 {
2835 memcpy(dst, src, line_len * sizeof(WCHAR));
2836 dst[line_len] = 0;
2837 return line_len;
2838 }
2839 }
2840 else
2841 {
2842 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2843 if(!ret && line_len) /* Insufficient buffer size */
2844 return dst_len;
2845 if(ret < dst_len) /* Append 0 if enough space */
2846 ((LPSTR)dst)[ret] = 0;
2847 return ret;
2848 }
2849 }
2850
2851
2852 /*********************************************************************
2853 *
2854 * EM_GETSEL
2855 *
2856 */
2857 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2858 {
2859 UINT s = es->selection_start;
2860 UINT e = es->selection_end;
2861
2862 ORDER_UINT(s, e);
2863 if (start)
2864 *start = s;
2865 if (end)
2866 *end = e;
2867 return MAKELONG(s, e);
2868 }
2869
2870
2871 /*********************************************************************
2872 *
2873 * EM_GETTHUMB
2874 *
2875 * FIXME: is this right ? (or should it be only VSCROLL)
2876 * (and maybe only for edit controls that really have their
2877 * own scrollbars) (and maybe only for multiline controls ?)
2878 * All in all: very poorly documented
2879 *
2880 */
2881 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2882 {
2883 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2884 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2885 }
2886
2887
2888 /*********************************************************************
2889 *
2890 * EM_LINEFROMCHAR
2891 *
2892 */
2893 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2894 {
2895 INT line;
2896 LINEDEF *line_def;
2897
2898 if (!(es->style & ES_MULTILINE))
2899 return 0;
2900 if (index > (INT)get_text_length(es))
2901 return es->line_count - 1;
2902 if (index == -1)
2903 index = min(es->selection_start, es->selection_end);
2904
2905 line = 0;
2906 line_def = es->first_line_def;
2907 index -= line_def->length;
2908 while ((index >= 0) && line_def->next) {
2909 line++;
2910 line_def = line_def->next;
2911 index -= line_def->length;
2912 }
2913 return line;
2914 }
2915
2916
2917 /*********************************************************************
2918 *
2919 * EM_LINEINDEX
2920 *
2921 */
2922 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
2923 {
2924 INT line_index;
2925 const LINEDEF *line_def;
2926
2927 if (!(es->style & ES_MULTILINE))
2928 return 0;
2929 if (line >= es->line_count)
2930 return -1;
2931
2932 line_index = 0;
2933 line_def = es->first_line_def;
2934 if (line == -1) {
2935 INT index = es->selection_end - line_def->length;
2936 while ((index >= 0) && line_def->next) {
2937 line_index += line_def->length;
2938 line_def = line_def->next;
2939 index -= line_def->length;
2940 }
2941 } else {
2942 while (line > 0) {
2943 line_index += line_def->length;
2944 line_def = line_def->next;
2945 line--;
2946 }
2947 }
2948 return line_index;
2949 }
2950
2951
2952 /*********************************************************************
2953 *
2954 * EM_LINELENGTH
2955 *
2956 */
2957 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2958 {
2959 LINEDEF *line_def;
2960
2961 if (!(es->style & ES_MULTILINE))
2962 return get_text_length(es);
2963
2964 if (index == -1) {
2965 /* get the number of remaining non-selected chars of selected lines */
2966 INT32 l; /* line number */
2967 INT32 li; /* index of first char in line */
2968 INT32 count;
2969 l = EDIT_EM_LineFromChar(es, es->selection_start);
2970 /* # chars before start of selection area */
2971 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2972 l = EDIT_EM_LineFromChar(es, es->selection_end);
2973 /* # chars after end of selection */
2974 li = EDIT_EM_LineIndex(es, l);
2975 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2976 return count;
2977 }
2978 line_def = es->first_line_def;
2979 index -= line_def->length;
2980 while ((index >= 0) && line_def->next) {
2981 line_def = line_def->next;
2982 index -= line_def->length;
2983 }
2984 return line_def->net_length;
2985 }
2986
2987
2988 /*********************************************************************
2989 *
2990 * EM_LINESCROLL
2991 *
2992 * NOTE: dx is in average character widths, dy - in lines;
2993 *
2994 */
2995 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2996 {
2997 if (!(es->style & ES_MULTILINE))
2998 return FALSE;
2999
3000 dx *= es->char_width;
3001 return EDIT_EM_LineScroll_internal(es, dx, dy);
3002 }
3003
3004 /*********************************************************************
3005 *
3006 * EDIT_EM_LineScroll_internal
3007 *
3008 * Version of EDIT_EM_LineScroll for internal use.
3009 * It doesn't refuse if ES_MULTILINE is set and assumes that
3010 * dx is in pixels, dy - in lines.
3011 *
3012 */
3013 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
3014 {
3015 INT nyoff;
3016 INT x_offset_in_pixels;
3017 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3018 es->line_height;
3019
3020 if (es->style & ES_MULTILINE)
3021 {
3022 x_offset_in_pixels = es->x_offset;
3023 }
3024 else
3025 {
3026 dy = 0;
3027 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3028 }
3029
3030 if (-dx > x_offset_in_pixels)
3031 dx = -x_offset_in_pixels;
3032 if (dx > es->text_width - x_offset_in_pixels)
3033 dx = es->text_width - x_offset_in_pixels;
3034 nyoff = max(0, es->y_offset + dy);
3035 if (nyoff >= es->line_count - lines_per_page)
3036 nyoff = max(0, es->line_count - lines_per_page);
3037 dy = (es->y_offset - nyoff) * es->line_height;
3038 if (dx || dy) {
3039 RECT rc1;
3040 RECT rc;
3041
3042 es->y_offset = nyoff;
3043 if(es->style & ES_MULTILINE)
3044 es->x_offset += dx;
3045 else
3046 es->x_offset += dx / es->char_width;
3047
3048 GetClientRect(es->hwndSelf, &rc1);
3049 IntersectRect(&rc, &rc1, &es->format_rect);
3050 ScrollWindowEx(es->hwndSelf, -dx, dy,
3051 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3052 /* force scroll info update */
3053 EDIT_UpdateScrollInfo(es);
3054 }
3055 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3056 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3057 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3058 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3059 return TRUE;
3060 }
3061
3062
3063 /*********************************************************************
3064 *
3065 * EM_POSFROMCHAR
3066 *
3067 */
3068 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3069 {
3070 INT len = get_text_length(es);
3071 INT l;
3072 INT li;
3073 INT x;
3074 INT y = 0;
3075 INT w;
3076 INT lw = 0;
3077 INT ll = 0;
3078 HDC dc;
3079 HFONT old_font = 0;
3080 SIZE size;
3081 LINEDEF *line_def;
3082
3083 index = min(index, len);
3084 dc = GetDC(es->hwndSelf);
3085 if (es->font)
3086 old_font = SelectObject(dc, es->font);
3087 if (es->style & ES_MULTILINE) {
3088 l = EDIT_EM_LineFromChar(es, index);
3089 y = (l - es->y_offset) * es->line_height;
3090 li = EDIT_EM_LineIndex(es, l);
3091 if (after_wrap && (li == index) && l) {
3092 INT l2 = l - 1;
3093 line_def = es->first_line_def;
3094 while (l2) {
3095 line_def = line_def->next;
3096 l2--;
3097 }
3098 if (line_def->ending == END_WRAP) {
3099 l--;
3100 y -= es->line_height;
3101 li = EDIT_EM_LineIndex(es, l);
3102 }
3103 }
3104
3105 line_def = es->first_line_def;
3106 while (line_def->index != li)
3107 line_def = line_def->next;
3108
3109 ll = line_def->net_length;
3110 lw = line_def->width;
3111
3112 w = es->format_rect.right - es->format_rect.left;
3113 if (es->style & ES_RIGHT)
3114 {
3115 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3116 es->tabs_count, es->tabs)) - es->x_offset;
3117 x = w - x;
3118 }
3119 else if (es->style & ES_CENTER)
3120 {
3121 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3122 es->tabs_count, es->tabs)) - es->x_offset;
3123 x += (w - lw) / 2;
3124 }
3125 else /* ES_LEFT */
3126 {
3127 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3128 es->tabs_count, es->tabs)) - es->x_offset;
3129 }
3130 } else {
3131 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3132 if (index < es->x_offset) {
3133 GetTextExtentPoint32W(dc, text + index,
3134 es->x_offset - index, &size);
3135 x = -size.cx;
3136 } else {
3137 GetTextExtentPoint32W(dc, text + es->x_offset,
3138 index - es->x_offset, &size);
3139 x = size.cx;
3140
3141 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3142 {
3143 w = es->format_rect.right - es->format_rect.left;
3144 if (w > es->text_width)
3145 {
3146 if (es->style & ES_RIGHT)
3147 x += w - es->text_width;
3148 else if (es->style & ES_CENTER)
3149 x += (w - es->text_width) / 2;
3150 }
3151 }
3152 }
3153 y = 0;
3154 if (es->style & ES_PASSWORD)
3155 HeapFree(GetProcessHeap(), 0, text);
3156 }
3157 x += es->format_rect.left;
3158 y += es->format_rect.top;
3159 if (es->font)
3160 SelectObject(dc, old_font);
3161 ReleaseDC(es->hwndSelf, dc);
3162 return MAKELONG((INT16)x, (INT16)y);
3163 }
3164
3165
3166 /*********************************************************************
3167 *
3168 * EM_REPLACESEL
3169 *
3170 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3171 *
3172 */
3173 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3174 {
3175 UINT strl = strlenW(lpsz_replace);
3176 UINT tl = get_text_length(es);
3177 UINT utl;
3178 UINT s;
3179 UINT e;
3180 UINT i;
3181 UINT size;
3182 LPWSTR p;
3183 HRGN hrgn = 0;
3184 LPWSTR buf = NULL;
3185 UINT bufl = 0;
3186
3187 TRACE("%s, can_undo %d, send_update %d\n",
3188 debugstr_w(lpsz_replace), can_undo, send_update);
3189
3190 s = es->selection_start;
3191 e = es->selection_end;
3192
3193 if ((s == e) && !strl)
3194 return;
3195
3196 ORDER_UINT(s, e);
3197
3198 size = tl - (e - s) + strl;
3199 if (!size)
3200 es->text_width = 0;
3201
3202 /* Issue the EN_MAXTEXT notification and continue with replacing text
3203 * such that buffer limit is honored. */
3204 if ((honor_limit) && (size > es->buffer_limit)) {
3205 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3206 /* Buffer limit can be smaller than the actual length of text in combobox */
3207 if (es->buffer_limit < (tl - (e-s)))
3208 strl = 0;
3209 else
3210 strl = es->buffer_limit - (tl - (e-s));
3211 }
3212
3213 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3214 return;
3215
3216 if (e != s) {
3217 /* there is something to be deleted */
3218 TRACE("deleting stuff.\n");
3219 bufl = e - s;
3220 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3221 if (!buf) return;
3222 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3223 buf[bufl] = 0; /* ensure 0 termination */
3224 /* now delete */
3225 strcpyW(es->text + s, es->text + e);
3226 text_buffer_changed(es);
3227 }
3228 if (strl) {
3229 /* there is an insertion */
3230 tl = get_text_length(es);
3231 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));
3232 for (p = es->text + tl ; p >= es->text + s ; p--)
3233 p[strl] = p[0];
3234 for (i = 0 , p = es->text + s ; i < strl ; i++)
3235 p[i] = lpsz_replace[i];
3236 if(es->style & ES_UPPERCASE)
3237 CharUpperBuffW(p, strl);
3238 else if(es->style & ES_LOWERCASE)
3239 CharLowerBuffW(p, strl);
3240 text_buffer_changed(es);
3241 }
3242 if (es->style & ES_MULTILINE)
3243 {
3244 INT st = min(es->selection_start, es->selection_end);
3245 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3246
3247 hrgn = CreateRectRgn(0, 0, 0, 0);
3248 EDIT_BuildLineDefs_ML(es, st, st + strl,
3249 strl - abs(es->selection_end - es->selection_start), hrgn);
3250 /* if text is too long undo all changes */
3251 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3252 if (strl)
3253 strcpyW(es->text + e, es->text + e + strl);
3254 if (e != s)
3255 for (i = 0 , p = es->text ; i < e - s ; i++)
3256 p[i + s] = buf[i];
3257 text_buffer_changed(es);
3258 EDIT_BuildLineDefs_ML(es, s, e,
3259 abs(es->selection_end - es->selection_start) - strl, hrgn);
3260 strl = 0;
3261 e = s;
3262 hrgn = CreateRectRgn(0, 0, 0, 0);
3263 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3264 }
3265 }
3266 else {
3267 INT fw = es->format_rect.right - es->format_rect.left;
3268 EDIT_CalcLineWidth_SL(es);
3269 /* remove chars that don't fit */
3270 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3271 while ((es->text_width > fw) && s + strl >= s) {
3272 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3273 strl--;
3274 EDIT_CalcLineWidth_SL(es);
3275 }
3276 text_buffer_changed(es);
3277 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3278 }
3279 }
3280
3281 if (e != s) {
3282 if (can_undo) {
3283 utl = strlenW(es->undo_text);
3284 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3285 /* undo-buffer is extended to the right */
3286 EDIT_MakeUndoFit(es, utl + e - s);
3287 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3288 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3289 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3290 /* undo-buffer is extended to the left */
3291 EDIT_MakeUndoFit(es, utl + e - s);
3292 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3293 p[e - s] = p[0];
3294 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3295 p[i] = buf[i];
3296 es->undo_position = s;
3297 } else {
3298 /* new undo-buffer */
3299 EDIT_MakeUndoFit(es, e - s);
3300 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3301 es->undo_text[e - s] = 0; /* ensure 0 termination */
3302 es->undo_position = s;
3303 }
3304 /* any deletion makes the old insertion-undo invalid */
3305 es->undo_insert_count = 0;
3306 } else
3307 EDIT_EM_EmptyUndoBuffer(es);
3308 }
3309 if (strl) {
3310 if (can_undo) {
3311 if ((s == es->undo_position) ||
3312 ((es->undo_insert_count) &&
3313 (s == es->undo_position + es->undo_insert_count)))
3314 /*
3315 * insertion is new and at delete position or
3316 * an extension to either left or right
3317 */
3318 es->undo_insert_count += strl;
3319 else {
3320 /* new insertion undo */
3321 es->undo_position = s;
3322 es->undo_insert_count = strl;
3323 /* new insertion makes old delete-buffer invalid */
3324 *es->undo_text = '\0';
3325 }
3326 } else
3327 EDIT_EM_EmptyUndoBuffer(es);
3328 }
3329
3330 if (bufl)
3331 HeapFree(GetProcessHeap(), 0, buf);
3332
3333 s += strl;
3334
3335 /* If text has been deleted and we're right or center aligned then scroll rightward */
3336 if (es->style & (ES_RIGHT | ES_CENTER))
3337 {
3338 INT delta = strl - abs(es->selection_end - es->selection_start);
3339
3340 if (delta < 0 && es->x_offset)
3341 {
3342 if (abs(delta) > es->x_offset)
3343 es->x_offset = 0;
3344 else
3345 es->x_offset += delta;
3346 }
3347 }
3348
3349 EDIT_EM_SetSel(es, s, s, FALSE);
3350 es->flags |= EF_MODIFIED;
3351 if (send_update) es->flags |= EF_UPDATE;
3352 if (hrgn)
3353 {
3354 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3355 DeleteObject(hrgn);
3356 }
3357 else
3358 EDIT_UpdateText(es, NULL, TRUE);
3359
3360 EDIT_EM_ScrollCaret(es);
3361
3362 /* force scroll info update */
3363 EDIT_UpdateScrollInfo(es);
3364
3365
3366 if(send_update || (es->flags & EF_UPDATE))
3367 {
3368 es->flags &= ~EF_UPDATE;
3369 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3370 }
3371 }
3372
3373
3374 /*********************************************************************
3375 *
3376 * EM_SCROLL
3377 *
3378 */
3379 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3380 {
3381 INT dy;
3382
3383 if (!(es->style & ES_MULTILINE))
3384 return (LRESULT)FALSE;
3385
3386 dy = 0;
3387
3388 switch (action) {
3389 case SB_LINEUP:
3390 if (es->y_offset)
3391 dy = -1;
3392 break;
3393 case SB_LINEDOWN:
3394 if (es->y_offset < es->line_count - 1)
3395 dy = 1;
3396 break;
3397 case SB_PAGEUP:
3398 if (es->y_offset)
3399 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3400 break;
3401 case SB_PAGEDOWN:
3402 if (es->y_offset < es->line_count - 1)
3403 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3404 break;
3405 default:
3406 return (LRESULT)FALSE;
3407 }
3408 if (dy) {
3409 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3410 /* check if we are going to move too far */
3411 if(es->y_offset + dy > es->line_count - vlc)
3412 dy = es->line_count - vlc - es->y_offset;
3413
3414 /* Notification is done in EDIT_EM_LineScroll */
3415 if(dy)
3416 EDIT_EM_LineScroll(es, 0, dy);
3417 }
3418 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3419 }
3420
3421
3422 /*********************************************************************
3423 *
3424 * EM_SCROLLCARET
3425 *
3426 */
3427 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3428 {
3429 if (es->style & ES_MULTILINE) {
3430 INT l;
3431 INT li;
3432 INT vlc;
3433 INT ww;
3434 INT cw = es->char_width;
3435 INT x;
3436 INT dy = 0;
3437 INT dx = 0;
3438
3439 l = EDIT_EM_LineFromChar(es, es->selection_end);
3440 li = EDIT_EM_LineIndex(es, l);
3441 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3442 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3443 if (l >= es->y_offset + vlc)
3444 dy = l - vlc + 1 - es->y_offset;
3445 if (l < es->y_offset)
3446 dy = l - es->y_offset;
3447 ww = es->format_rect.right - es->format_rect.left;
3448 if (x < es->format_rect.left)
3449 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3450 if (x > es->format_rect.right)
3451 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3452 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3453 {
3454 /* check if we are going to move too far */
3455 if(es->x_offset + dx + ww > es->text_width)
3456 dx = es->text_width - ww - es->x_offset;
3457 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3458 EDIT_EM_LineScroll_internal(es, dx, dy);
3459 }
3460 } else {
3461 INT x;
3462 INT goal;
3463 INT format_width;
3464
3465 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3466 format_width = es->format_rect.right - es->format_rect.left;
3467 if (x < es->format_rect.left) {
3468 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3469 do {
3470 es->x_offset--;
3471 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3472 } while ((x < goal) && es->x_offset);
3473 /* FIXME: use ScrollWindow() somehow to improve performance */
3474 EDIT_UpdateText(es, NULL, TRUE);
3475 } else if (x > es->format_rect.right) {
3476 INT x_last;
3477 INT len = get_text_length(es);
3478 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3479 do {
3480 es->x_offset++;
3481 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3482 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3483 } while ((x > goal) && (x_last > es->format_rect.right));
3484 /* FIXME: use ScrollWindow() somehow to improve performance */
3485 EDIT_UpdateText(es, NULL, TRUE);
3486 }
3487 }
3488
3489 if(es->flags & EF_FOCUSED)
3490 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3491 }
3492
3493
3494 /*********************************************************************
3495 *
3496 * EM_SETHANDLE
3497 *
3498 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3499 *
3500 */
3501 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3502 {
3503 if (!(es->style & ES_MULTILINE))
3504 return;
3505
3506 if (!hloc) {
3507 WARN("called with NULL handle\n");
3508 return;
3509 }
3510
3511 EDIT_UnlockBuffer(es, TRUE);
3512
3513 if(es->hloc16)
3514 {
3515 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3516 HANDLE16 oldDS = stack16->ds;
3517
3518 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3519 LocalFree16(es->hloc16);
3520 stack16->ds = oldDS;
3521 es->hloc16 = 0;
3522 }
3523
3524 if(es->is_unicode)
3525 {
3526 if(es->hloc32A)
3527 {
3528 LocalFree(es->hloc32A);
3529 es->hloc32A = NULL;
3530 }
3531 es->hloc32W = hloc;
3532 }
3533 else
3534 {
3535 INT countW, countA;
3536 HLOCAL hloc32W_new;
3537 WCHAR *textW;
3538 CHAR *textA;
3539
3540 countA = LocalSize(hloc);
3541 textA = LocalLock(hloc);
3542 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3543 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3544 {
3545 ERR("Could not allocate new unicode buffer\n");
3546 return;
3547 }
3548 textW = LocalLock(hloc32W_new);
3549 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3550 LocalUnlock(hloc32W_new);
3551 LocalUnlock(hloc);
3552
3553 if(es->hloc32W)
3554 LocalFree(es->hloc32W);
3555
3556 es->hloc32W = hloc32W_new;
3557 es->hloc32A = hloc;
3558 }
3559
3560 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3561
3562 es->flags |= EF_APP_HAS_HANDLE;
3563 EDIT_LockBuffer(es);
3564
3565 es->x_offset = es->y_offset = 0;
3566 es->selection_start = es->selection_end = 0;
3567 EDIT_EM_EmptyUndoBuffer(es);
3568 es->flags &= ~EF_MODIFIED;
3569 es->flags &= ~EF_UPDATE;
3570 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3571 EDIT_UpdateText(es, NULL, TRUE);
3572 EDIT_EM_ScrollCaret(es);
3573 /* force scroll info update */
3574 EDIT_UpdateScrollInfo(es);
3575 }
3576
3577
3578 /*********************************************************************
3579 *
3580 * EM_SETHANDLE16
3581 *
3582 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3583 *
3584 */
3585 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3586 {
3587 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
3588 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3589 HANDLE16 oldDS = stack16->ds;
3590 INT countW, countA;
3591 HLOCAL hloc32W_new;
3592 WCHAR *textW;
3593 CHAR *textA;
3594
3595 if (!(es->style & ES_MULTILINE))
3596 return;
3597
3598 if (!hloc) {
3599 WARN("called with NULL handle\n");
3600 return;
3601 }
3602
3603 EDIT_UnlockBuffer(es, TRUE);
3604
3605 if(es->hloc32A)
3606 {
3607 LocalFree(es->hloc32A);
3608 es->hloc32A = NULL;
3609 }
3610
3611 stack16->ds = hInstance;
3612 countA = LocalSize16(hloc);
3613 textA = MapSL(LocalLock16(hloc));
3614 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3615 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3616 {
3617 ERR("Could not allocate new unicode buffer\n");
3618 return;
3619 }
3620 textW = LocalLock(hloc32W_new);
3621 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3622 LocalUnlock(hloc32W_new);
3623 LocalUnlock16(hloc);
3624 stack16->ds = oldDS;
3625
3626 if(es->hloc32W)
3627 LocalFree(es->hloc32W);
3628
3629 es->hloc32W = hloc32W_new;
3630 es->hloc16 = hloc;
3631
3632 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3633
3634 es->flags |= EF_APP_HAS_HANDLE;
3635 EDIT_LockBuffer(es);
3636
3637 es->x_offset = es->y_offset = 0;
3638 es->selection_start = es->selection_end = 0;
3639 EDIT_EM_EmptyUndoBuffer(es);
3640 es->flags &= ~EF_MODIFIED;
3641 es->flags &= ~EF_UPDATE;
3642 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3643 EDIT_UpdateText(es, NULL, TRUE);
3644 EDIT_EM_ScrollCaret(es);
3645 /* force scroll info update */
3646 EDIT_UpdateScrollInfo(es);
3647 }
3648
3649
3650 /*********************************************************************
3651 *
3652 * EM_SETLIMITTEXT
3653 *
3654 * NOTE: this version currently implements WinNT limits
3655 *
3656 */
3657 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
3658 {
3659 if (!limit) limit = ~0u;
3660 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
3661 es->buffer_limit = limit;
3662 }
3663
3664
3665 /*********************************************************************
3666 *
3667 * EM_SETMARGINS
3668 *
3669 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3670 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3671 * margin according to the textmetrics of the current font.
3672 *
3673 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3674 * of the char's width as the margin, but this is not how Windows handles this.
3675 * For all other fonts Windows sets the margins to zero.
3676 *
3677 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3678 * edit control is equal to or larger than a certain size.
3679 * Interestingly if one subtracts both the left and right margins from
3680 * this size one always seems to get an even number. The extents of
3681 * the (four character) string "'**'" match this quite closely, so
3682 * we'll use this until we come up with a better idea.
3683 */
3684 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3685 {
3686 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3687 SIZE sz;
3688
3689 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3690 return sz.cx + left + right;
3691 }
3692
3693 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3694 WORD left, WORD right, BOOL repaint)
3695 {
3696 TEXTMETRICW tm;
3697 INT default_left_margin = 0; /* in pixels */
3698 INT default_right_margin = 0; /* in pixels */
3699
3700 /* Set the default margins depending on the font */
3701 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3702 HDC dc = GetDC(es->hwndSelf);
3703 HFONT old_font = SelectObject(dc, es->font);
3704 GetTextMetricsW(dc, &tm);
3705 /* The default margins are only non zero for TrueType or Vector fonts */
3706 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3707 int min_size;
3708 RECT rc;
3709 /* This must be calculated more exactly! But how? */
3710 default_left_margin = tm.tmAveCharWidth / 2;
3711 default_right_margin = tm.tmAveCharWidth / 2;
3712 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3713 GetClientRect(es->hwndSelf, &rc);
3714 if(rc.right - rc.left < min_size) {
3715 default_left_margin = es->left_margin;
3716 default_right_margin = es->right_margin;
3717 }
3718 }
3719 SelectObject(dc, old_font);
3720 ReleaseDC(es->hwndSelf, dc);
3721 }
3722
3723 if (action & EC_LEFTMARGIN) {
3724 es->format_rect.left -= es->left_margin;
3725 if (left != EC_USEFONTINFO)
3726 es->left_margin = left;
3727 else
3728 es->left_margin = default_left_margin;
3729 es->format_rect.left += es->left_margin;
3730 }
3731
3732 if (action & EC_RIGHTMARGIN) {
3733 es->format_rect.right += es->right_margin;
3734 if (right != EC_USEFONTINFO)
3735 es->right_margin = right;
3736 else
3737 es->right_margin = default_right_margin;
3738 es->format_rect.right -= es->right_margin;
3739 }
3740
3741 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3742 EDIT_AdjustFormatRect(es);
3743 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3744 }
3745
3746 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3747 }
3748
3749
3750 /*********************************************************************
3751 *
3752 * EM_SETPASSWORDCHAR
3753 *
3754 */
3755 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3756 {
3757 LONG style;
3758
3759 if (es->style & ES_MULTILINE)
3760 return;
3761
3762 if (es->password_char == c)
3763 return;
3764
3765 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3766 es->password_char = c;
3767 if (c) {
3768 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3769 es->style |= ES_PASSWORD;
3770 } else {
3771 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3772 es->style &= ~ES_PASSWORD;
3773 }
3774 EDIT_UpdateText(es, NULL, TRUE);
3775 }
3776
3777
3778 /*********************************************************************
3779 *
3780 * EDIT_EM_SetSel
3781 *
3782 * note: unlike the specs say: the order of start and end
3783 * _is_ preserved in Windows. (i.e. start can be > end)
3784 * In other words: this handler is OK
3785 *
3786 */
3787 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3788 {
3789 UINT old_start = es->selection_start;
3790 UINT old_end = es->selection_end;
3791 UINT len = get_text_length(es);
3792
3793 if (start == (UINT)-1) {
3794 start = es->selection_end;
3795 end = es->selection_end;
3796 } else {
3797 start = min(start, len);
3798 end = min(end, len);
3799 }
3800 es->selection_start = start;
3801 es->selection_end = end;
3802 if (after_wrap)
3803 es->flags |= EF_AFTER_WRAP;
3804 else
3805 es->flags &= ~EF_AFTER_WRAP;
3806 /* Compute the necessary invalidation region. */
3807 /* Note that we don't need to invalidate regions which have
3808 * "never" been selected, or those which are "still" selected.
3809 * In fact, every time we hit a selection boundary, we can
3810 * *toggle* whether we need to invalidate. Thus we can optimize by
3811 * *sorting* the interval endpoints. Let's assume that we sort them
3812 * in this order:
3813 * start <= end <= old_start <= old_end
3814 * Knuth 5.3.1 (p 183) asssures us that this can be done optimally
3815 * in 5 comparisons; ie it's impossible to do better than the
3816 * following: */
3817 ORDER_UINT(end, old_end);
3818 ORDER_UINT(start, old_start);
3819 ORDER_UINT(old_start, old_end);
3820 ORDER_UINT(start, end);
3821 /* Note that at this point 'end' and 'old_start' are not in order, but
3822 * start is definitely the min. and old_end is definitely the max. */
3823 if (end != old_start)
3824 {
3825 /*
3826 * One can also do
3827 * ORDER_UINT32(end, old_start);
3828 * EDIT_InvalidateText(es, start, end);
3829 * EDIT_InvalidateText(es, old_start, old_end);
3830 * in place of the following if statement.
3831 * (That would complete the optimal five-comparison four-element sort.)
3832 */
3833 if (old_start > end )
3834 {
3835 EDIT_InvalidateText(es, start, end);
3836 EDIT_InvalidateText(es, old_start, old_end);
3837 }
3838 else
3839 {
3840 EDIT_InvalidateText(es, start, old_start);
3841 EDIT_InvalidateText(es, end, old_end);
3842 }
3843 }
3844 else EDIT_InvalidateText(es, start, old_end);
3845 }
3846
3847
3848 /*********************************************************************
3849 *
3850 * EM_SETTABSTOPS
3851 *
3852 */
3853 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
3854 {
3855 if (!(es->style & ES_MULTILINE))
3856 return FALSE;
3857 HeapFree(GetProcessHeap(), 0, es->tabs);
3858 es->tabs_count = count;
3859 if (!count)
3860 es->tabs = NULL;
3861 else {
3862 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3863 memcpy(es->tabs, tabs, count * sizeof(INT));
3864 }
3865 return TRUE;
3866 }
3867
3868
3869 /*********************************************************************
3870 *
3871 * EM_SETTABSTOPS16
3872 *
3873 */
3874 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, const INT16 *tabs)
3875 {
3876 if (!(es->style & ES_MULTILINE))
3877 return FALSE;
3878 HeapFree(GetProcessHeap(), 0, es->tabs);
3879 es->tabs_count = count;
3880 if (!count)
3881 es->tabs = NULL;
3882 else {
3883 INT i;
3884 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3885 for (i = 0 ; i < count ; i++)
3886 es->tabs[i] = *tabs++;
3887 }
3888 return TRUE;
3889 }
3890
3891
3892 /*********************************************************************
3893 *
3894 * EM_SETWORDBREAKPROC
3895 *
3896 */
3897 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3898 {
3899 if (es->word_break_proc == wbp)
3900 return;
3901
3902 es->word_break_proc = wbp;
3903 es->word_break_proc16 = NULL;
3904
3905 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3906 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3907 EDIT_UpdateText(es, NULL, TRUE);
3908 }
3909 }
3910
3911
3912 /*********************************************************************
3913 *
3914 * EM_SETWORDBREAKPROC16
3915 *
3916 */
3917 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3918 {
3919 if (es->word_break_proc16 == wbp)
3920 return;
3921
3922 es->word_break_proc = NULL;
3923 es->word_break_proc16 = wbp;
3924 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3925 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3926 EDIT_UpdateText(es, NULL, TRUE);
3927 }
3928 }
3929
3930
3931 /*********************************************************************
3932 *
3933 * EM_UNDO / WM_UNDO
3934 *
3935 */
3936 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3937 {
3938 INT ulength;
3939 LPWSTR utext;
3940
3941 /* As per MSDN spec, for a single-line edit control,
3942 the return value is always TRUE */
3943 if( es->style & ES_READONLY )
3944 return !(es->style & ES_MULTILINE);
3945
3946 ulength = strlenW(es->undo_text);
3947
3948 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3949
3950 strcpyW(utext, es->undo_text);
3951
3952 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3953 es->undo_insert_count, debugstr_w(utext));
3954
3955 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3956 EDIT_EM_EmptyUndoBuffer(es);
3957 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3958 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3959 /* send the notification after the selection start and end are set */
3960 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3961 EDIT_EM_ScrollCaret(es);
3962 HeapFree(GetProcessHeap(), 0, utext);
3963
3964 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3965 es->undo_insert_count, debugstr_w(es->undo_text));
3966 return TRUE;
3967 }
3968
3969
3970 /*********************************************************************
3971 *
3972 * WM_CHAR
3973 *
3974 */
3975 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3976 {
3977 BOOL control;
3978
3979 control = GetKeyState(VK_CONTROL) & 0x8000;
3980
3981 switch (c) {
3982 case '\r':
3983 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3984 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3985 break;
3986 case '\n':
3987 if (es->style & ES_MULTILINE) {
3988 if (es->style & ES_READONLY) {
3989 EDIT_MoveHome(es, FALSE);
3990 EDIT_MoveDown_ML(es, FALSE);
3991 } else {
3992 static const WCHAR cr_lfW[] = {'\r','\n',0};
3993 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3994 }
3995 }
3996 break;
3997 case '\t':
3998 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3999 {
4000 static const WCHAR tabW[] = {'\t',0};
4001 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
4002 }
4003 break;
4004 case VK_BACK:
4005 if (!(es->style & ES_READONLY) && !control) {
4006 if (es->selection_start != es->selection_end)
4007 EDIT_WM_Clear(es);
4008 else {
4009 /* delete character left of caret */
4010 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4011 EDIT_MoveBackward(es, TRUE);
4012 EDIT_WM_Clear(es);
4013 }
4014 }
4015 break;
4016 case 0x03: /* ^C */
4017 if (!(es->style & ES_PASSWORD))
4018 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4019 break;
4020 case 0x16: /* ^V */
4021 if (!(es->style & ES_READONLY))
4022 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4023 break;
4024 case 0x18: /* ^X */
4025 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
4026 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4027 break;
4028 case 0x1A: /* ^Z */
4029 if (!(es->style & ES_READONLY))
4030 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
4031 break;
4032
4033 default:
4034 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4035 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4036 break;
4037
4038 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4039 WCHAR str[2];
4040 str[0] = c;
4041 str[1] = '\0';
4042 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4043 }
4044 break;
4045 }
4046 }
4047
4048
4049 /*********************************************************************
4050 *
4051 * WM_COMMAND
4052 *
4053 */
4054 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4055 {
4056 if (code || control)
4057 return;
4058
4059 switch (id) {
4060 case EM_UNDO:
4061 EDIT_EM_Undo(es);
4062 break;
4063 case WM_CUT:
4064 EDIT_WM_Cut(es);
4065 break;
4066 case WM_COPY:
4067 EDIT_WM_Copy(es);
4068 break;
4069 case WM_PASTE:
4070 EDIT_WM_Paste(es);
4071 break;
4072 case WM_CLEAR:
4073 EDIT_WM_Clear(es);
4074 break;
4075 case EM_SETSEL:
4076 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4077 EDIT_EM_ScrollCaret(es);
4078 break;
4079 default:
4080 ERR("unknown menu item, please report\n");
4081 break;
4082 }
4083 }
4084
4085
4086 /*********************************************************************
4087 *
4088 * WM_CONTEXTMENU
4089 *
4090 * Note: the resource files resource/sysres_??.rc cannot define a
4091 * single popup menu. Hence we use a (dummy) menubar
4092 * containing the single popup menu as its first item.
4093 *
4094 * FIXME: the message identifiers have been chosen arbitrarily,
4095 * hence we use MF_BYPOSITION.
4096 * We might as well use the "real" values (anybody knows ?)
4097 * The menu definition is in resources/sysres_??.rc.
4098 * Once these are OK, we better use MF_BYCOMMAND here
4099 * (as we do in EDIT_WM_Command()).
4100 *
4101 */
4102 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4103 {
4104 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4105 HMENU popup = GetSubMenu(menu, 0);
4106 UINT start = es->selection_start;
4107 UINT end = es->selection_end;
4108
4109 ORDER_UINT(start, end);
4110
4111 /* undo */
4112 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4113 /* cut */
4114 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4115 /* copy */
4116 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4117 /* paste */
4118 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4119 /* delete */
4120 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4121 /* select all */
4122 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
4123
4124 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
4125 {
4126 RECT rc;
4127 /* Windows places the menu at the edit's center in this case */
4128 GetClientRect(es->hwndSelf, &rc);
4129 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
4130 x = rc.left + (rc.right - rc.left) / 2;
4131 y = rc.top + (rc.bottom - rc.top) / 2;
4132 }
4133
4134 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4135 DestroyMenu(menu);
4136 }
4137
4138
4139 /*********************************************************************
4140 *
4141 * WM_COPY
4142 *
4143 */
4144 static void EDIT_WM_Copy(EDITSTATE *es)
4145 {
4146 INT s = min(es->selection_start, es->selection_end);
4147 INT e = max(es->selection_start, es->selection_end);
4148 HGLOBAL hdst;
4149 LPWSTR dst;
4150 DWORD len;
4151
4152 if (e == s) return;
4153
4154 len = e - s;
4155 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4156 dst = GlobalLock(hdst);
4157 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4158 dst[len] = 0; /* ensure 0 termination */
4159 TRACE("%s\n", debugstr_w(dst));
4160 GlobalUnlock(hdst);
4161 OpenClipboard(es->hwndSelf);
4162 EmptyClipboard();
4163 SetClipboardData(CF_UNICODETEXT, hdst);
4164 CloseClipboard();
4165 }
4166
4167
4168 /*********************************************************************
4169 *
4170 * WM_CREATE
4171 *
4172 */
4173 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4174 {
4175 RECT clientRect;
4176
4177 TRACE("%s\n", debugstr_w(name));
4178 /*
4179 * To initialize some final structure members, we call some helper
4180 * functions. However, since the EDITSTATE is not consistent (i.e.
4181 * not fully initialized), we should be very careful which
4182 * functions can be called, and in what order.
4183 */
4184 EDIT_WM_SetFont(es, 0, FALSE);
4185 EDIT_EM_EmptyUndoBuffer(es);
4186
4187 /* We need to calculate the format rect
4188 (applications may send EM_SETMARGINS before the control gets visible) */
4189 GetClientRect(es->hwndSelf, &clientRect);
4190 EDIT_SetRectNP(es, &clientRect);
4191
4192 if (name && *name) {
4193 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4194 /* if we insert text to the editline, the text scrolls out
4195 * of the window, as the caret is placed after the insert
4196 * pos normally; thus we reset es->selection... to 0 and
4197 * update caret
4198 */
4199 es->selection_start = es->selection_end = 0;
4200 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4201 * Messages are only to be sent when the USER does something to
4202 * change the contents. So I am removing this EN_CHANGE
4203 *
4204 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4205 */
4206 EDIT_EM_ScrollCaret(es);
4207 }
4208 /* force scroll info update */
4209 EDIT_UpdateScrollInfo(es);
4210 /* The rule seems to return 1 here for success */
4211 /* Power Builder masked edit controls will crash */
4212 /* if not. */
4213 /* FIXME: is that in all cases so ? */
4214 return 1;
4215 }
4216
4217
4218 /*********************************************************************
4219 *
4220 * WM_DESTROY
4221 *
4222 */
4223 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4224 {
4225 LINEDEF *pc, *pp;
4226
4227 if (es->hloc32W) {
4228 while (LocalUnlock(es->hloc32W)) ;
4229 LocalFree(es->hloc32W);
4230 }
4231 if (es->hloc32A) {
4232 while (LocalUnlock(es->hloc32A)) ;
4233 LocalFree(es->hloc32A);
4234 }
4235 if (es->hloc16) {
4236 STACK16FRAME* stack16 = MapSL(PtrToUlong(NtCurrentTeb()->WOW32Reserved));
4237 HANDLE16 oldDS = stack16->ds;
4238
4239 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4240 while (LocalUnlock16(es->hloc16)) ;
4241 LocalFree16(es->hloc16);
4242 stack16->ds = oldDS;
4243 }
4244
4245 pc = es->first_line_def;
4246 while (pc)
4247 {
4248 pp = pc->next;
4249 HeapFree(GetProcessHeap(), 0, pc);
4250 pc = pp;
4251 }
4252
4253 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4254 HeapFree(GetProcessHeap(), 0, es);
4255
4256 return 0;
4257 }
4258
4259
4260 /*********************************************************************
4261 *
4262 * WM_GETTEXT
4263 *
4264 */
4265 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4266 {
4267 if(!count) return 0;
4268
4269 if(unicode)
4270 {
4271 lstrcpynW(dst, es->text, count);
4272 return strlenW(dst);
4273 }
4274 else
4275 {
4276 LPSTR textA = (LPSTR)dst;
4277 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4278 textA[count - 1] = 0; /* ensure 0 termination */
4279 return strlen(textA);
4280 }
4281 }
4282
4283 /*********************************************************************
4284 *
4285 * WM_HSCROLL
4286 *
4287 */
4288 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4289 {
4290 INT dx;
4291 INT fw;
4292
4293 if (!(es->style & ES_MULTILINE))
4294 return 0;
4295
4296 if (!(es->style & ES_AUTOHSCROLL))
4297 return 0;
4298
4299 dx = 0;
4300 fw = es->format_rect.right - es->format_rect.left;
4301 switch (action) {
4302 case SB_LINELEFT:
4303 TRACE("SB_LINELEFT\n");
4304 if (es->x_offset)
4305 dx = -es->char_width;
4306 break;
4307 case SB_LINERIGHT:
4308 TRACE("SB_LINERIGHT\n");
4309 if (es->x_offset < es->text_width)
4310 dx = es->char_width;
4311 break;
4312 case SB_PAGELEFT:
4313 TRACE("SB_PAGELEFT\n");
4314 if (es->x_offset)
4315 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4316 break;
4317 case SB_PAGERIGHT:
4318 TRACE("SB_PAGERIGHT\n");
4319 if (es->x_offset < es->text_width)
4320 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4321 break;
4322 case SB_LEFT:
4323 TRACE("SB_LEFT\n");
4324 if (es->x_offset)
4325 dx = -es->x_offset;
4326 break;
4327 case SB_RIGHT:
4328 TRACE("SB_RIGHT\n");
4329 if (es->x_offset < es->text_width)
4330 dx = es->text_width - es->x_offset;
4331 break;
4332 case SB_THUMBTRACK:
4333 TRACE("SB_THUMBTRACK %d\n", pos);
4334 es->flags |= EF_HSCROLL_TRACK;
4335 if(es->style & WS_HSCROLL)
4336 dx = pos - es->x_offset;
4337 else
4338 {
4339 INT fw, new_x;
4340 /* Sanity check */
4341 if(pos < 0 || pos > 100) return 0;
4342 /* Assume default scroll range 0-100 */
4343 fw = es->format_rect.right - es->format_rect.left;
4344 new_x = pos * (es->text_width - fw) / 100;
4345 dx = es->text_width ? (new_x - es->x_offset) : 0;
4346 }
4347 break;
4348 case SB_THUMBPOSITION:
4349 TRACE("SB_THUMBPOSITION %d\n", pos);
4350 es->flags &= ~EF_HSCROLL_TRACK;
4351 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4352 dx = pos - es->x_offset;
4353 else
4354 {
4355 INT fw, new_x;
4356 /* Sanity check */
4357 if(pos < 0 || pos > 100) return 0;
4358 /* Assume default scroll range 0-100 */
4359 fw = es->format_rect.right - es->format_rect.left;
4360 new_x = pos * (es->text_width - fw) / 100;
4361 dx = es->text_width ? (new_x - es->x_offset) : 0;
4362 }
4363 if (!dx) {
4364 /* force scroll info update */
4365 EDIT_UpdateScrollInfo(es);
4366 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4367 }
4368 break;
4369 case SB_ENDSCROLL:
4370 TRACE("SB_ENDSCROLL\n");
4371 break;
4372 /*
4373 * FIXME : the next two are undocumented !
4374 * Are we doing the right thing ?
4375 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4376 * although it's also a regular control message.
4377 */
4378 case EM_GETTHUMB: /* this one is used by NT notepad */
4379 case EM_GETTHUMB16:
4380 {
4381 LRESULT ret;
4382 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4383 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4384 else
4385 {
4386 /* Assume default scroll range 0-100 */
4387 INT fw = es->format_rect.right - es->format_rect.left;
4388 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4389 }
4390 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4391 return ret;
4392 }
4393 case EM_LINESCROLL16:
4394 TRACE("EM_LINESCROLL16\n");
4395 dx = pos;
4396 break;
4397
4398 default:
4399 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4400 action, action);
4401 return 0;
4402 }
4403 if (dx)
4404 {
4405 INT fw = es->format_rect.right - es->format_rect.left;
4406 /* check if we are going to move too far */
4407 if(es->x_offset + dx + fw > es->text_width)
4408 dx = es->text_width - fw - es->x_offset;
4409 if(dx)
4410 EDIT_EM_LineScroll_internal(es, dx, 0);
4411 }
4412 return 0;
4413 }
4414
4415
4416 /*********************************************************************
4417 *
4418 * EDIT_CheckCombo
4419 *
4420 */
4421 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4422 {
4423 HWND hLBox = es->hwndListBox;
4424 HWND hCombo;
4425 BOOL bDropped;
4426 int nEUI;
4427
4428 if (!hLBox)
4429 return FALSE;
4430
4431 hCombo = GetParent(es->hwndSelf);
4432 bDropped = TRUE;
4433 nEUI = 0;
4434
4435 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4436
4437 if (key == VK_UP || key == VK_DOWN)
4438 {
4439 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4440 nEUI = 1;
4441
4442 if (msg == WM_KEYDOWN || nEUI)
4443 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4444 }
4445
4446 switch (msg)
4447 {
4448 case WM_KEYDOWN:
4449 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4450 {
4451 /* make sure ComboLBox pops up */
4452 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4453 key = VK_F4;
4454 nEUI = 2;
4455 }
4456
4457 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4458 break;
4459
4460 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4461 if (nEUI)
4462 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4463 else
4464 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4465 break;
4466 }
4467
4468 if(nEUI == 2)
4469 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4470
4471 return TRUE;
4472 }
4473
4474
4475 /*********************************************************************
4476 *
4477 * WM_KEYDOWN
4478 *
4479 * Handling of special keys that don't produce a WM_CHAR
4480 * (i.e. non-printable keys) & Backspace & Delete
4481 *
4482 */
4483 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4484 {
4485 BOOL shift;
4486 BOOL control;
4487
4488 if (GetKeyState(VK_MENU) & 0x8000)
4489 return 0;
4490
4491 shift = GetKeyState(VK_SHIFT) & 0x8000;
4492 control = GetKeyState(VK_CONTROL) & 0x8000;
4493
4494 switch (key) {
4495 case VK_F4:
4496 case VK_UP:
4497 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4498 break;
4499
4500 /* fall through */
4501 case VK_LEFT:
4502 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4503 EDIT_MoveUp_ML(es, shift);
4504 else
4505 if (control)
4506 EDIT_MoveWordBackward(es, shift);
4507 else
4508 EDIT_MoveBackward(es, shift);
4509 break;
4510 case VK_DOWN:
4511 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4512 break;
4513 /* fall through */
4514 case VK_RIGHT:
4515 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4516 EDIT_MoveDown_ML(es, shift);
4517 else if (control)
4518 EDIT_MoveWordForward(es, shift);
4519 else
4520 EDIT_MoveForward(es, shift);
4521 break;
4522 case VK_HOME:
4523 EDIT_MoveHome(es, shift);
4524 break;
4525 case VK_END:
4526 EDIT_MoveEnd(es, shift);
4527 break;
4528 case VK_PRIOR:
4529 if (es->style & ES_MULTILINE)
4530 EDIT_MovePageUp_ML(es, shift);
4531 else
4532 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4533 break;
4534 case VK_NEXT:
4535 if (es->style & ES_MULTILINE)
4536 EDIT_MovePageDown_ML(es, shift);
4537 else
4538 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4539 break;
4540 case VK_DELETE:
4541 if (!(es->style & ES_READONLY) && !(shift && control)) {
4542 if (es->selection_start != es->selection_end) {
4543 if (shift)
4544 EDIT_WM_Cut(es);
4545 else
4546 EDIT_WM_Clear(es);
4547 } else {
4548 if (shift) {
4549 /* delete character left of caret */
4550 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4551 EDIT_MoveBackward(es, TRUE);
4552 EDIT_WM_Clear(es);
4553 } else if (control) {
4554 /* delete to end of line */
4555 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4556 EDIT_MoveEnd(es, TRUE);
4557 EDIT_WM_Clear(es);
4558 } else {
4559 /* delete character right of caret */
4560 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4561 EDIT_MoveForward(es, TRUE);
4562 EDIT_WM_Clear(es);
4563 }
4564 }
4565 }
4566 break;
4567 case VK_INSERT:
4568 if (shift) {
4569 if (!(es->style & ES_READONLY))
4570 EDIT_WM_Paste(es);
4571 } else if (control)
4572 EDIT_WM_Copy(es);
4573 break;
4574 case VK_RETURN:
4575 /* If the edit doesn't want the return send a message to the default object */
4576 if(!(es->style & ES_WANTRETURN))
4577 {
4578 HWND hwndParent = GetParent(es->hwndSelf);
4579 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4580 if (HIWORD(dw) == DC_HASDEFID)
4581 {
4582 SendMessageW( hwndParent, WM_COMMAND,
4583 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4584 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4585 }
4586 }
4587 break;
4588 }
4589 return 0;
4590 }
4591
4592
4593 /*********************************************************************
4594 *
4595 * WM_KILLFOCUS
4596 *
4597 */
4598 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4599 {
4600 es->flags &= ~EF_FOCUSED;
4601 DestroyCaret();
4602 if(!(es->style & ES_NOHIDESEL))
4603 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4604 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4605 return 0;
4606 }
4607
4608
4609 /*********************************************************************
4610 *
4611 * WM_LBUTTONDBLCLK
4612 *
4613 * The caret position has been set on the WM_LBUTTONDOWN message
4614 *
4615 */
4616 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4617 {
4618 INT s;
4619 INT e = es->selection_end;
4620 INT l;
4621 INT li;
4622 INT ll;
4623
4624 es->bCaptureState = TRUE;
4625 SetCapture(es->hwndSelf);
4626
4627 l = EDIT_EM_LineFromChar(es, e);
4628 li = EDIT_EM_LineIndex(es, l);
4629 ll = EDIT_EM_LineLength(es, e);
4630 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4631 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4632 EDIT_EM_SetSel(es, s, e, FALSE);
4633 EDIT_EM_ScrollCaret(es);
4634 es->region_posx = es->region_posy = 0;
4635 SetTimer(es->hwndSelf, 0, 100, NULL);
4636 return 0;
4637 }
4638
4639
4640 /*********************************************************************
4641 *
4642 * WM_LBUTTONDOWN
4643 *
4644 */
4645 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4646 {
4647 INT e;
4648 BOOL after_wrap;
4649
4650 es->bCaptureState = TRUE;
4651 SetCapture(es->hwndSelf);
4652 EDIT_ConfinePoint(es, &x, &y);
4653 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4654 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4655 EDIT_EM_ScrollCaret(es);
4656 es->region_posx = es->region_posy = 0;
4657 SetTimer(es->hwndSelf, 0, 100, NULL);
4658
4659 if (!(es->flags & EF_FOCUSED))
4660 SetFocus(es->hwndSelf);
4661
4662 return 0;
4663 }
4664
4665
4666 /*********************************************************************
4667 *
4668 * WM_LBUTTONUP
4669 *
4670 */
4671 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4672 {
4673 if (es->bCaptureState) {
4674 KillTimer(es->hwndSelf, 0);
4675 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4676 }
4677 es->bCaptureState = FALSE;
4678 return 0;
4679 }
4680
4681
4682 /*********************************************************************
4683 *
4684 * WM_MBUTTONDOWN
4685 *
4686 */
4687 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4688 {
4689 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4690 return 0;
4691 }
4692
4693
4694 /*********************************************************************
4695 *
4696 * WM_MOUSEMOVE
4697 *
4698 */
4699 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4700 {
4701 INT e;
4702 BOOL after_wrap;
4703 INT prex, prey;
4704
4705 /* If the mouse has been captured by process other than the edit control itself,
4706 * the windows edit controls will not select the strings with mouse move.
4707 */
4708 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4709 return 0;
4710
4711 /*
4712 * FIXME: gotta do some scrolling if outside client
4713 * area. Maybe reset the timer ?
4714 */
4715 prex = x; prey = y;
4716 EDIT_ConfinePoint(es, &x, &y);
4717 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4718 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4719 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4720 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4721 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4722 return 0;
4723 }
4724
4725
4726 /*********************************************************************
4727 *
4728 * WM_NCCREATE
4729 *
4730 * See also EDIT_WM_StyleChanged
4731 */
4732 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4733 {
4734 EDITSTATE *es;
4735 UINT alloc_size;
4736
4737 TRACE("Creating %s edit control, style = %08x\n",
4738 unicode ? "Unicode" : "ANSI", lpcs->style);
4739
4740 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4741 return FALSE;
4742 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4743
4744 /*
4745 * Note: since the EDITSTATE has not been fully initialized yet,
4746 * we can't use any API calls that may send
4747 * WM_XXX messages before WM_NCCREATE is completed.
4748 */
4749
4750 es->is_unicode = unicode;
4751 es->style = lpcs->style;
4752
4753 es->bEnableState = !(es->style & WS_DISABLED);
4754
4755 es->hwndSelf = hwnd;
4756 /* Save parent, which will be notified by EN_* messages */
4757 es->hwndParent = lpcs->hwndParent;
4758
4759 if (es->style & ES_COMBO)
4760 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4761
4762 /* Number overrides lowercase overrides uppercase (at least it
4763 * does in Win95). However I'll bet that ES_NUMBER would be
4764 * invalid under Win 3.1.
4765 */
4766 if (es->style & ES_NUMBER) {
4767 ; /* do not override the ES_NUMBER */
4768 } else if (es->style & ES_LOWERCASE) {
4769 es->style &= ~ES_UPPERCASE;
4770 }
4771 if (es->style & ES_MULTILINE) {
4772 es->buffer_limit = BUFLIMIT_INITIAL;
4773 if (es->style & WS_VSCROLL)
4774 es->style |= ES_AUTOVSCROLL;
4775 if (es->style & WS_HSCROLL)
4776 es->style |= ES_AUTOHSCROLL;
4777 es->style &= ~ES_PASSWORD;
4778 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4779 /* Confirmed - RIGHT overrides CENTER */
4780 if (es->style & ES_RIGHT)
4781 es->style &= ~ES_CENTER;
4782 es->style &= ~WS_HSCROLL;
4783 es->style &= ~ES_AUTOHSCROLL;
4784 }
4785 } else {
4786 es->buffer_limit = BUFLIMIT_INITIAL;
4787 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4788 es->style &= ~ES_CENTER;
4789 es->style &= ~WS_HSCROLL;
4790 es->style &= ~WS_VSCROLL;
4791 if (es->style & ES_PASSWORD)
4792 es->password_char = '*';
4793 }
4794
4795 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4796 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4797 return FALSE;
4798 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4799
4800 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4801 return FALSE;
4802 es->undo_buffer_size = es->buffer_size;
4803
4804 if (es->style & ES_MULTILINE)
4805 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4806 return FALSE;
4807 es->line_count = 1;
4808
4809 /*
4810 * In Win95 look and feel, the WS_BORDER style is replaced by the
4811 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4812 * control a nonclient area so we don't need to draw the border.
4813 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4814 * a nonclient area and we should handle painting the border ourselves.
4815 *
4816 * When making modifications please ensure that the code still works
4817 * for edit controls created directly with style 0x50800000, exStyle 0
4818 * (which should have a single pixel border)
4819 */
4820 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4821 es->style &= ~WS_BORDER;
4822 else if (es->style & WS_BORDER)
4823 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4824
4825 return TRUE;
4826 }
4827
4828 /*********************************************************************
4829 *
4830 * WM_PAINT
4831 *
4832 */
4833 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4834 {
4835 PAINTSTRUCT ps;
4836 INT i;
4837 HDC dc;
4838 HFONT old_font = 0;
4839 RECT rc;
4840 RECT rcClient;
4841 RECT rcLine;
4842 RECT rcRgn;
4843 HBRUSH brush;
4844 HBRUSH old_brush;
4845 INT bw, bh;
4846 BOOL rev = es->bEnableState &&
4847 ((es->flags & EF_FOCUSED) ||
4848 (es->style & ES_NOHIDESEL));
4849 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4850
4851 GetClientRect(es->hwndSelf, &rcClient);
4852
4853 /* get the background brush */
4854 brush = EDIT_NotifyCtlColor(es, dc);
4855
4856 /* paint the border and the background */
4857 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4858
4859 if(es->style & WS_BORDER) {
4860 bw = GetSystemMetrics(SM_CXBORDER);
4861 bh = GetSystemMetrics(SM_CYBORDER);
4862 rc = rcClient;
4863 if(es->style & ES_MULTILINE) {
4864 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4865 if(es->style & WS_VSCROLL) rc.right+=bw;
4866 }
4867
4868 /* Draw the frame. Same code as in nonclient.c */
4869 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4870 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4871 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4872 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4873 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4874 SelectObject(dc, old_brush);
4875
4876 /* Keep the border clean */
4877 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4878 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4879 }
4880
4881 GetClipBox(dc, &rc);
4882 FillRect(dc, &rc, brush);
4883
4884 IntersectClipRect(dc, es->format_rect.left,
4885 es->format_rect.top,
4886 es->format_rect.right,
4887 es->format_rect.bottom);
4888 if (es->style & ES_MULTILINE) {
4889 rc = rcClient;
4890 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4891 }
4892 if (es->font)
4893 old_font = SelectObject(dc, es->font);
4894
4895 if (!es->bEnableState)
4896 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4897 GetClipBox(dc, &rcRgn);
4898 if (es->style & ES_MULTILINE) {
4899 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4900 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4901 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4902 if (IntersectRect(&rc, &rcRgn, &rcLine))
4903 EDIT_PaintLine(es, dc, i, rev);
4904 }
4905 } else {
4906 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4907 if (IntersectRect(&rc, &rcRgn, &rcLine))
4908 EDIT_PaintLine(es, dc, 0, rev);
4909 }
4910 if (es->font)
4911 SelectObject(dc, old_font);
4912
4913 if (!hdc)
4914 EndPaint(es->hwndSelf, &ps);
4915 }
4916
4917
4918 /*********************************************************************
4919 *
4920 * WM_PASTE
4921 *
4922 */
4923 static void EDIT_WM_Paste(EDITSTATE *es)
4924 {
4925 HGLOBAL hsrc;
4926 LPWSTR src;
4927
4928 /* Protect read-only edit control from modification */
4929 if(es->style & ES_READONLY)
4930 return;
4931
4932 OpenClipboard(es->hwndSelf);
4933 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4934 src = (LPWSTR)GlobalLock(hsrc);
4935 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4936 GlobalUnlock(hsrc);
4937 }
4938 else if (es->style & ES_PASSWORD) {
4939 /* clear selected text in password edit box even with empty clipboard */
4940 const WCHAR empty_strW[] = { 0 };
4941 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
4942 }
4943 CloseClipboard();
4944 }
4945
4946
4947 /*********************************************************************
4948 *
4949 * WM_SETFOCUS
4950 *
4951 */
4952 static void EDIT_WM_SetFocus(EDITSTATE *es)
4953 {
4954 es->flags |= EF_FOCUSED;
4955
4956 if (!(es->style & ES_NOHIDESEL))
4957 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4958
4959 /* single line edit updates itself */
4960 if (!(es->style & ES_MULTILINE))
4961 {
4962 HDC hdc = GetDC(es->hwndSelf);
4963 EDIT_WM_Paint(es, hdc);
4964 ReleaseDC(es->hwndSelf, hdc);
4965 }
4966
4967 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4968 EDIT_SetCaretPos(es, es->selection_end,
4969 es->flags & EF_AFTER_WRAP);
4970 ShowCaret(es->hwndSelf);
4971 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
4972 }
4973
4974
4975 /*********************************************************************
4976 *
4977 * WM_SETFONT
4978 *
4979 * With Win95 look the margins are set to default font value unless
4980 * the system font (font == 0) is being set, in which case they are left
4981 * unchanged.
4982 *
4983 */
4984 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4985 {
4986 TEXTMETRICW tm;
4987 HDC dc;
4988 HFONT old_font = 0;
4989 RECT clientRect;
4990
4991 es->font = font;
4992 dc = GetDC(es->hwndSelf);
4993 if (font)
4994 old_font = SelectObject(dc, font);
4995 GetTextMetricsW(dc, &tm);
4996 es->line_height = tm.tmHeight;
4997 es->char_width = tm.tmAveCharWidth;
4998 if (font)
4999 SelectObject(dc, old_font);
5000 ReleaseDC(es->hwndSelf, dc);
5001
5002 /* Reset the format rect and the margins */
5003 GetClientRect(es->hwndSelf, &clientRect);
5004 EDIT_SetRectNP(es, &clientRect);
5005 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
5006 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
5007
5008 if (es->style & ES_MULTILINE)
5009 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
5010 else
5011 EDIT_CalcLineWidth_SL(es);
5012
5013 if (redraw)
5014 EDIT_UpdateText(es, NULL, TRUE);
5015 if (es->flags & EF_FOCUSED) {
5016 DestroyCaret();
5017 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
5018 EDIT_SetCaretPos(es, es->selection_end,
5019 es->flags & EF_AFTER_WRAP);
5020 ShowCaret(es->hwndSelf);
5021 }
5022 }
5023
5024
5025 /*********************************************************************
5026 *
5027 * WM_SETTEXT
5028 *
5029 * NOTES
5030 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5031 * The modified flag is reset. No notifications are sent.
5032 *
5033 * For single-line controls, reception of WM_SETTEXT triggers:
5034 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5035 *
5036 */
5037 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5038 {
5039 LPWSTR textW = NULL;
5040 if (!unicode && text)
5041 {
5042 LPCSTR textA = (LPCSTR)text;
5043 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5044 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5045 if (textW)
5046 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5047 text = textW;
5048 }
5049
5050 if (es->flags & EF_UPDATE)
5051 /* fixed this bug once; complain if we see it about to happen again. */
5052 ERR("SetSel may generate UPDATE message whose handler may reset "
5053 "selection.\n");
5054
5055 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5056 if (text)
5057 {
5058 TRACE("%s\n", debugstr_w(text));
5059 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5060 if(!unicode)
5061 HeapFree(GetProcessHeap(), 0, textW);
5062 }
5063 else
5064 {
5065 static const WCHAR empty_stringW[] = {0};
5066 TRACE("<NULL>\n");
5067 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5068 }
5069 es->x_offset = 0;
5070 es->flags &= ~EF_MODIFIED;
5071 EDIT_EM_SetSel(es, 0, 0, FALSE);
5072
5073 /* Send the notification after the selection start and end have been set
5074 * edit control doesn't send notification on WM_SETTEXT
5075 * if it is multiline, or it is part of combobox
5076 */
5077 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5078 {
5079 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5080 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5081 }
5082 EDIT_EM_ScrollCaret(es);
5083 EDIT_UpdateScrollInfo(es);
5084 }
5085
5086
5087 /*********************************************************************
5088 *
5089 * WM_SIZE
5090 *
5091 */
5092 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5093 {
5094 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5095 RECT rc;
5096 TRACE("width = %d, height = %d\n", width, height);
5097 SetRect(&rc, 0, 0, width, height);
5098 EDIT_SetRectNP(es, &rc);
5099 EDIT_UpdateText(es, NULL, TRUE);
5100 }
5101 }
5102
5103
5104 /*********************************************************************
5105 *
5106 * WM_STYLECHANGED
5107 *
5108 * This message is sent by SetWindowLong on having changed either the Style
5109 * or the extended style.
5110 *
5111 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5112 *
5113 * See also EDIT_WM_NCCreate
5114 *
5115 * It appears that the Windows version of the edit control allows the style
5116 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5117 * style variable which will generally be different. In this function we
5118 * update the internal style based on what changed in the externally visible
5119 * style.
5120 *
5121 * Much of this content as based upon the MSDN, especially:
5122 * Platform SDK Documentation -> User Interface Services ->
5123 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5124 * Edit Control Styles
5125 */
5126 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5127 {
5128 if (GWL_STYLE == which) {
5129 DWORD style_change_mask;
5130 DWORD new_style;
5131 /* Only a subset of changes can be applied after the control
5132 * has been created.
5133 */
5134 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5135 ES_NUMBER;
5136 if (es->style & ES_MULTILINE)
5137 style_change_mask |= ES_WANTRETURN;
5138
5139 new_style = style->styleNew & style_change_mask;
5140
5141 /* Number overrides lowercase overrides uppercase (at least it
5142 * does in Win95). However I'll bet that ES_NUMBER would be
5143 * invalid under Win 3.1.
5144 */
5145 if (new_style & ES_NUMBER) {
5146 ; /* do not override the ES_NUMBER */
5147 } else if (new_style & ES_LOWERCASE) {
5148 new_style &= ~ES_UPPERCASE;
5149 }
5150
5151 es->style = (es->style & ~style_change_mask) | new_style;
5152 } else if (GWL_EXSTYLE == which) {
5153 ; /* FIXME - what is needed here */
5154 } else {
5155 WARN ("Invalid style change %ld\n",which);
5156 }
5157
5158 return 0;
5159 }
5160
5161 /*********************************************************************
5162 *
5163 * WM_SYSKEYDOWN
5164 *
5165 */
5166 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5167 {
5168 if ((key == VK_BACK) && (key_data & 0x2000)) {
5169 if (EDIT_EM_CanUndo(es))
5170 EDIT_EM_Undo(es);
5171 return 0;
5172 } else if (key == VK_UP || key == VK_DOWN) {
5173 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5174 return 0;
5175 }
5176 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5177 }
5178
5179
5180 /*********************************************************************
5181 *
5182 * WM_TIMER
5183 *
5184 */
5185 static void EDIT_WM_Timer(EDITSTATE *es)
5186 {
5187 if (es->region_posx < 0) {
5188 EDIT_MoveBackward(es, TRUE);
5189 } else if (es->region_posx > 0) {
5190 EDIT_MoveForward(es, TRUE);
5191 }
5192 /*
5193 * FIXME: gotta do some vertical scrolling here, like
5194 * EDIT_EM_LineScroll(hwnd, 0, 1);
5195 */
5196 }
5197
5198 /*********************************************************************
5199 *
5200 * WM_VSCROLL
5201 *
5202 */
5203 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5204 {
5205 INT dy;
5206
5207 if (!(es->style & ES_MULTILINE))
5208 return 0;
5209
5210 if (!(es->style & ES_AUTOVSCROLL))
5211 return 0;
5212
5213 dy = 0;
5214 switch (action) {
5215 case SB_LINEUP:
5216 case SB_LINEDOWN:
5217 case SB_PAGEUP:
5218 case SB_PAGEDOWN:
5219 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5220 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5221 (action == SB_PAGEUP ? "SB_PAGEUP" :
5222 "SB_PAGEDOWN"))));
5223 EDIT_EM_Scroll(es, action);
5224 return 0;
5225 case SB_TOP:
5226 TRACE("SB_TOP\n");
5227 dy = -es->y_offset;
5228 break;
5229 case SB_BOTTOM:
5230 TRACE("SB_BOTTOM\n");
5231 dy = es->line_count - 1 - es->y_offset;
5232 break;
5233 case SB_THUMBTRACK:
5234 TRACE("SB_THUMBTRACK %d\n", pos);
5235 es->flags |= EF_VSCROLL_TRACK;
5236 if(es->style & WS_VSCROLL)
5237 dy = pos - es->y_offset;
5238 else
5239 {
5240 /* Assume default scroll range 0-100 */
5241 INT vlc, new_y;
5242 /* Sanity check */
5243 if(pos < 0 || pos > 100) return 0;
5244 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5245 new_y = pos * (es->line_count - vlc) / 100;
5246 dy = es->line_count ? (new_y - es->y_offset) : 0;
5247 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5248 es->line_count, es->y_offset, pos, dy);
5249 }
5250 break;
5251 case SB_THUMBPOSITION:
5252 TRACE("SB_THUMBPOSITION %d\n", pos);
5253 es->flags &= ~EF_VSCROLL_TRACK;
5254 if(es->style & WS_VSCROLL)
5255 dy = pos - es->y_offset;
5256 else
5257 {
5258 /* Assume default scroll range 0-100 */
5259 INT vlc, new_y;
5260 /* Sanity check */
5261 if(pos < 0 || pos > 100) return 0;
5262 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5263 new_y = pos * (es->line_count - vlc) / 100;
5264 dy = es->line_count ? (new_y - es->y_offset) : 0;
5265 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5266 es->line_count, es->y_offset, pos, dy);
5267 }
5268 if (!dy)
5269 {
5270 /* force scroll info update */
5271 EDIT_UpdateScrollInfo(es);
5272 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5273 }
5274 break;
5275 case SB_ENDSCROLL:
5276 TRACE("SB_ENDSCROLL\n");
5277 break;
5278 /*
5279 * FIXME : the next two are undocumented !
5280 * Are we doing the right thing ?
5281 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5282 * although it's also a regular control message.
5283 */
5284 case EM_GETTHUMB: /* this one is used by NT notepad */
5285 case EM_GETTHUMB16:
5286 {
5287 LRESULT ret;
5288 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5289 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5290 else
5291 {
5292 /* Assume default scroll range 0-100 */
5293 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5294 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5295 }
5296 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5297 return ret;
5298 }
5299 case EM_LINESCROLL16:
5300 TRACE("EM_LINESCROLL16 %d\n", pos);
5301 dy = pos;
5302 break;
5303
5304 default:
5305 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5306 action, action);
5307 return 0;
5308 }
5309 if (dy)
5310 EDIT_EM_LineScroll(es, 0, dy);
5311 return 0;
5312 }
5313
5314 /*********************************************************************
5315 *
5316 * EDIT_UpdateText
5317 *
5318 */
5319 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5320 {
5321 if (es->flags & EF_UPDATE) {
5322 es->flags &= ~EF_UPDATE;
5323 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5324 }
5325 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5326 }
5327
5328
5329 /*********************************************************************
5330 *
5331 * EDIT_UpdateText
5332 *
5333 */
5334 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
5335 {
5336 if (es->flags & EF_UPDATE) {
5337 es->flags &= ~EF_UPDATE;
5338 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5339 }
5340 InvalidateRect(es->hwndSelf, rc, bErase);
5341 }
5342
5343 /********************************************************************
5344 *
5345 * The Following code is to handle inline editing from IMEs
5346 */
5347
5348 static void EDIT_GetCompositionStr(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5349 {
5350 DWORD dwBufLen;
5351 LPWSTR lpCompStr = NULL;
5352 HIMC hIMC;
5353 LPSTR lpCompStrAttr = NULL;
5354 DWORD dwBufLenAttr;
5355
5356 if (!(hIMC = ImmGetContext(hwnd)))
5357 return;
5358
5359 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5360
5361 if (dwBufLen < 0)
5362 {
5363 ImmReleaseContext(hwnd, hIMC);
5364 return;
5365 }
5366
5367 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen + sizeof(WCHAR));
5368 if (!lpCompStr)
5369 {
5370 ERR("Unable to allocate IME CompositionString\n");
5371 ImmReleaseContext(hwnd,hIMC);
5372 return;
5373 }
5374
5375 if (dwBufLen)
5376 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
5377 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
5378
5379 if (CompFlag & GCS_COMPATTR)
5380 {
5381 /*
5382 * We do not use the attributes yet. it would tell us what characters
5383 * are in transition and which are converted or decided upon
5384 */
5385 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5386 if (dwBufLenAttr)
5387 {
5388 dwBufLenAttr ++;
5389 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
5390 if (!lpCompStrAttr)
5391 {
5392 ERR("Unable to allocate IME Attribute String\n");
5393 HeapFree(GetProcessHeap(),0,lpCompStr);
5394 ImmReleaseContext(hwnd,hIMC);
5395 return;
5396 }
5397 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5398 dwBufLenAttr);
5399 lpCompStrAttr[dwBufLenAttr] = 0;
5400 }
5401 else
5402 lpCompStrAttr = NULL;
5403 }
5404
5405 /* check for change in composition start */
5406 if (es->selection_end < es->composition_start)
5407 es->composition_start = es->selection_end;
5408
5409 /* replace existing selection string */
5410 es->selection_start = es->composition_start;
5411
5412 if (es->composition_len > 0)
5413 es->selection_end = es->composition_start + es->composition_len;
5414 else
5415 es->selection_end = es->selection_start;
5416
5417 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5418 es->composition_len = abs(es->composition_start - es->selection_end);
5419
5420 es->selection_start = es->composition_start;
5421 es->selection_end = es->selection_start + es->composition_len;
5422
5423 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5424 HeapFree(GetProcessHeap(),0,lpCompStr);
5425 ImmReleaseContext(hwnd,hIMC);
5426 }
5427
5428 static void EDIT_GetResultStr(HWND hwnd, EDITSTATE *es)
5429 {
5430 DWORD dwBufLen;
5431 LPWSTR lpResultStr;
5432 HIMC hIMC;
5433
5434 if ( !(hIMC = ImmGetContext(hwnd)))
5435 return;
5436
5437 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5438 if (dwBufLen <= 0)
5439 {
5440 ImmReleaseContext(hwnd, hIMC);
5441 return;
5442 }
5443
5444 lpResultStr = HeapAlloc(GetProcessHeap(),0, dwBufLen+sizeof(WCHAR));
5445 if (!lpResultStr)
5446 {
5447 ERR("Unable to alloc buffer for IME string\n");
5448 ImmReleaseContext(hwnd, hIMC);
5449 return;
5450 }
5451
5452 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, dwBufLen);
5453 lpResultStr[dwBufLen/sizeof(WCHAR)] = 0;
5454
5455 /* check for change in composition start */
5456 if (es->selection_end < es->composition_start)
5457 es->composition_start = es->selection_end;
5458
5459 es->selection_start = es->composition_start;
5460 es->selection_end = es->composition_start + es->composition_len;
5461 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5462 es->composition_start = es->selection_end;
5463 es->composition_len = 0;
5464
5465 HeapFree(GetProcessHeap(),0,lpResultStr);
5466 ImmReleaseContext(hwnd, hIMC);
5467 }
5468
5469 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5470 {
5471 if (CompFlag & GCS_RESULTSTR)
5472 EDIT_GetResultStr(hwnd,es);
5473 if (CompFlag & GCS_COMPSTR)
5474 EDIT_GetCompositionStr(hwnd, CompFlag, es);
5475 }
useful hacks and other patches not (yet) suitable for mainline