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wined3d: Move constant loading into target-specific files.
[wine.git] / dlls / user / edit.c
blobc4f95e48a1de4c8846edc9c4dd6d22cb615b80f4
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_MULTI 65534 /* maximum buffer size (not including '\0')
69 FIXME: BTW, new specs say 65535 (do you dare ???) */
70 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
71 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
72 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
73 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
74
75 /*
76 * extra flags for EDITSTATE.flags field
77 */
78 #define EF_MODIFIED 0x0001 /* text has been modified */
79 #define EF_FOCUSED 0x0002 /* we have input focus */
80 #define EF_UPDATE 0x0004 /* notify parent of changed state */
81 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
82 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
83 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
84 wrapped line, instead of in front of the next character */
85 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
86
87 typedef enum
88 {
89 END_0 = 0, /* line ends with terminating '\0' character */
90 END_WRAP, /* line is wrapped */
91 END_HARD, /* line ends with a hard return '\r\n' */
92 END_SOFT, /* line ends with a soft return '\r\r\n' */
93 END_RICH /* line ends with a single '\n' */
94 } LINE_END;
95
96 typedef struct tagLINEDEF {
97 INT length; /* bruto length of a line in bytes */
98 INT net_length; /* netto length of a line in visible characters */
99 LINE_END ending;
100 INT width; /* width of the line in pixels */
101 INT index; /* line index into the buffer */
102 struct tagLINEDEF *next;
103 } LINEDEF;
104
105 typedef struct
106 {
107 BOOL is_unicode; /* how the control was created */
108 LPWSTR text; /* the actual contents of the control */
109 UINT buffer_size; /* the size of the buffer in characters */
110 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
111 HFONT font; /* NULL means standard system font */
112 INT x_offset; /* scroll offset for multi lines this is in pixels
113 for single lines it's in characters */
114 INT line_height; /* height of a screen line in pixels */
115 INT char_width; /* average character width in pixels */
116 DWORD style; /* sane version of wnd->dwStyle */
117 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
118 INT undo_insert_count; /* number of characters inserted in sequence */
119 UINT undo_position; /* character index of the insertion and deletion */
120 LPWSTR undo_text; /* deleted text */
121 UINT undo_buffer_size; /* size of the deleted text buffer */
122 INT selection_start; /* == selection_end if no selection */
123 INT selection_end; /* == current caret position */
124 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
125 INT left_margin; /* in pixels */
126 INT right_margin; /* in pixels */
127 RECT format_rect;
128 INT text_width; /* width of the widest line in pixels for multi line controls
129 and just line width for single line controls */
130 INT region_posx; /* Position of cursor relative to region: */
131 INT region_posy; /* -1: to left, 0: within, 1: to right */
132 EDITWORDBREAKPROC16 word_break_proc16;
133 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
134 INT line_count; /* number of lines */
135 INT y_offset; /* scroll offset in number of lines */
136 BOOL bCaptureState; /* flag indicating whether mouse was captured */
137 BOOL bEnableState; /* flag keeping the enable state */
138 HWND hwndSelf; /* the our window handle */
139 HWND hwndParent; /* Handle of parent for sending EN_* messages.
140 Even if parent will change, EN_* messages
141 should be sent to the first parent. */
142 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
143 /*
144 * only for multi line controls
145 */
146 INT lock_count; /* amount of re-entries in the EditWndProc */
147 INT tabs_count;
148 LPINT tabs;
149 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
150 HLOCAL hloc32W; /* our unicode local memory block */
151 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
152 or EM_SETHANDLE16 */
153 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
154 or EM_SETHANDLE */
155 /*
156 * IME Data
157 */
158 UINT composition_len; /* length of composition, 0 == no composition */
159 int composition_start; /* the character position for the composition */
160 } EDITSTATE;
161
162
163 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
164 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
165
166 /* used for disabled or read-only edit control */
167 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
168 do \
169 { /* Notify parent which has created this edit control */ \
170 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
171 SendMessageW(es->hwndParent, WM_COMMAND, \
172 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
173 (LPARAM)(es->hwndSelf)); \
174 } while(0)
175
176 /*********************************************************************
177 *
178 * Declarations
179 *
180 */
181
182 /*
183 * These functions have trivial implementations
184 * We still like to call them internally
185 * "static inline" makes them more like macro's
186 */
187 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
188 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
189 static inline void EDIT_WM_Clear(EDITSTATE *es);
190 static inline void EDIT_WM_Cut(EDITSTATE *es);
191
192 /*
193 * Helper functions only valid for one type of control
194 */
195 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
196 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
197 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
198 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
199 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
200 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
201 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
202 /*
203 * Helper functions valid for both single line _and_ multi line controls
204 */
205 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
206 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
207 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
208 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
209 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
210 static void EDIT_LockBuffer(EDITSTATE *es);
211 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
212 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
213 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
214 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
215 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
216 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
217 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
218 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
219 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
220 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
221 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
222 static void EDIT_AdjustFormatRect(EDITSTATE *es);
223 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
224 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
225 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
226 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
227 /*
228 * EM_XXX message handlers
229 */
230 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
231 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
232 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
233 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
234 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode);
235 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
236 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
237 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
238 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
239 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
240 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
241 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
242 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
243 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
244 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
245 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
246 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
247 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
248 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
249 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, WORD left, WORD right, BOOL repaint);
250 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
251 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
252 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
253 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
254 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp);
255 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
256 static BOOL EDIT_EM_Undo(EDITSTATE *es);
257 /*
258 * WM_XXX message handlers
259 */
260 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
261 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
262 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
263 static void EDIT_WM_Copy(EDITSTATE *es);
264 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
265 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
266 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
267 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode);
268 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
269 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
270 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
271 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
272 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
273 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
274 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
275 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
276 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
277 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc);
278 static void EDIT_WM_Paste(EDITSTATE *es);
279 static void EDIT_WM_SetFocus(EDITSTATE *es);
280 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
281 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode);
282 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
283 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
284 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
285 static void EDIT_WM_Timer(EDITSTATE *es);
286 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
287 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
288 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
289 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es);
290
291 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
292 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
293
294 /*********************************************************************
295 * edit class descriptor
296 */
297 const struct builtin_class_descr EDIT_builtin_class =
298 {
299 "Edit", /* name */
300 CS_DBLCLKS | CS_PARENTDC, /* style */
301 EditWndProcA, /* procA */
302 EditWndProcW, /* procW */
303 sizeof(EDITSTATE *), /* extra */
304 IDC_IBEAM, /* cursor */
305 0 /* brush */
306 };
307
308
309 /*********************************************************************
310 *
311 * EM_CANUNDO
312 *
313 */
314 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
315 {
316 return (es->undo_insert_count || strlenW(es->undo_text));
317 }
318
319
320 /*********************************************************************
321 *
322 * EM_EMPTYUNDOBUFFER
323 *
324 */
325 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
326 {
327 es->undo_insert_count = 0;
328 *es->undo_text = '\0';
329 }
330
331
332 /*********************************************************************
333 *
334 * WM_CLEAR
335 *
336 */
337 static inline void EDIT_WM_Clear(EDITSTATE *es)
338 {
339 static const WCHAR empty_stringW[] = {0};
340
341 /* Protect read-only edit control from modification */
342 if(es->style & ES_READONLY)
343 return;
344
345 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
346 }
347
348
349 /*********************************************************************
350 *
351 * WM_CUT
352 *
353 */
354 static inline void EDIT_WM_Cut(EDITSTATE *es)
355 {
356 EDIT_WM_Copy(es);
357 EDIT_WM_Clear(es);
358 }
359
360
361 /**********************************************************************
362 * get_app_version
363 *
364 * Returns the window version in case Wine emulates a later version
365 * of windows than the application expects.
366 *
367 * In a number of cases when windows runs an application that was
368 * designed for an earlier windows version, windows reverts
369 * to "old" behaviour of that earlier version.
370 *
371 * An example is a disabled edit control that needs to be painted.
372 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
373 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
374 * applications with an expected version 0f 4.0 or higher.
375 *
376 */
377 static DWORD get_app_version(void)
378 {
379 static DWORD version;
380 if (!version)
381 {
382 DWORD dwEmulatedVersion;
383 OSVERSIONINFOW info;
384 DWORD dwProcVersion = GetProcessVersion(0);
385
386 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
387 GetVersionExW( &info );
388 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
389 /* FIXME: this may not be 100% correct; see discussion on the
390 * wine developer list in Nov 1999 */
391 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
392 }
393 return version;
394 }
395
396
397 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
398 {
399 HBRUSH hbrush;
400 UINT msg;
401
402 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
403 msg = WM_CTLCOLORSTATIC;
404 else
405 msg = WM_CTLCOLOREDIT;
406
407 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
408 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
409 if (!hbrush)
410 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
411 return hbrush;
412 }
413
414 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
415 {
416 if(unicode)
417 return DefWindowProcW(hwnd, msg, wParam, lParam);
418 else
419 return DefWindowProcA(hwnd, msg, wParam, lParam);
420 }
421
422 /*********************************************************************
423 *
424 * EditWndProc_common
425 *
426 * The messages are in the order of the actual integer values
427 * (which can be found in include/windows.h)
428 * Wherever possible the 16 bit versions are converted to
429 * the 32 bit ones, so that we can 'fall through' to the
430 * helper functions. These are mostly 32 bit (with a few
431 * exceptions, clearly indicated by a '16' extension to their
432 * names).
433 *
434 */
435 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
436 WPARAM wParam, LPARAM lParam, BOOL unicode )
437 {
438 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
439 LRESULT result = 0;
440
441 TRACE("hwnd=%p msg=%x (%s) wparam=%x lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
442
443 if (!es && msg != WM_NCCREATE)
444 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
445
446 if (es && (msg != WM_DESTROY)) EDIT_LockBuffer(es);
447
448 switch (msg) {
449 case EM_GETSEL16:
450 wParam = 0;
451 lParam = 0;
452 /* fall through */
453 case EM_GETSEL:
454 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
455 break;
456
457 case EM_SETSEL16:
458 if ((short)LOWORD(lParam) == -1)
459 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
460 else
461 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
462 if (!wParam)
463 EDIT_EM_ScrollCaret(es);
464 result = 1;
465 break;
466 case EM_SETSEL:
467 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
468 EDIT_EM_ScrollCaret(es);
469 result = 1;
470 break;
471
472 case EM_GETRECT16:
473 if (lParam)
474 {
475 RECT16 *r16 = MapSL(lParam);
476 r16->left = es->format_rect.left;
477 r16->top = es->format_rect.top;
478 r16->right = es->format_rect.right;
479 r16->bottom = es->format_rect.bottom;
480 }
481 break;
482 case EM_GETRECT:
483 if (lParam)
484 CopyRect((LPRECT)lParam, &es->format_rect);
485 break;
486
487 case EM_SETRECT16:
488 if ((es->style & ES_MULTILINE) && lParam) {
489 RECT rc;
490 RECT16 *r16 = MapSL(lParam);
491 rc.left = r16->left;
492 rc.top = r16->top;
493 rc.right = r16->right;
494 rc.bottom = r16->bottom;
495 EDIT_SetRectNP(es, &rc);
496 EDIT_UpdateText(es, NULL, TRUE);
497 }
498 break;
499 case EM_SETRECT:
500 if ((es->style & ES_MULTILINE) && lParam) {
501 EDIT_SetRectNP(es, (LPRECT)lParam);
502 EDIT_UpdateText(es, NULL, TRUE);
503 }
504 break;
505
506 case EM_SETRECTNP16:
507 if ((es->style & ES_MULTILINE) && lParam) {
508 RECT rc;
509 RECT16 *r16 = MapSL(lParam);
510 rc.left = r16->left;
511 rc.top = r16->top;
512 rc.right = r16->right;
513 rc.bottom = r16->bottom;
514 EDIT_SetRectNP(es, &rc);
515 }
516 break;
517 case EM_SETRECTNP:
518 if ((es->style & ES_MULTILINE) && lParam)
519 EDIT_SetRectNP(es, (LPRECT)lParam);
520 break;
521
522 case EM_SCROLL16:
523 case EM_SCROLL:
524 result = EDIT_EM_Scroll(es, (INT)wParam);
525 break;
526
527 case EM_LINESCROLL16:
528 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
529 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
530 /* fall through */
531 case EM_LINESCROLL:
532 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
533 break;
534
535 case EM_SCROLLCARET16:
536 case EM_SCROLLCARET:
537 EDIT_EM_ScrollCaret(es);
538 result = 1;
539 break;
540
541 case EM_GETMODIFY16:
542 case EM_GETMODIFY:
543 result = ((es->flags & EF_MODIFIED) != 0);
544 break;
545
546 case EM_SETMODIFY16:
547 case EM_SETMODIFY:
548 if (wParam)
549 es->flags |= EF_MODIFIED;
550 else
551 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
552 break;
553
554 case EM_GETLINECOUNT16:
555 case EM_GETLINECOUNT:
556 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
557 break;
558
559 case EM_LINEINDEX16:
560 if ((INT16)wParam == -1)
561 wParam = (WPARAM)-1;
562 /* fall through */
563 case EM_LINEINDEX:
564 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
565 break;
566
567 case EM_SETHANDLE16:
568 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
569 break;
570 case EM_SETHANDLE:
571 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
572 break;
573
574 case EM_GETHANDLE16:
575 result = (LRESULT)EDIT_EM_GetHandle16(es);
576 break;
577 case EM_GETHANDLE:
578 result = (LRESULT)EDIT_EM_GetHandle(es);
579 break;
580
581 case EM_GETTHUMB16:
582 case EM_GETTHUMB:
583 result = EDIT_EM_GetThumb(es);
584 break;
585
586 /* these messages missing from specs */
587 case WM_USER+15:
588 case 0x00bf:
589 case WM_USER+16:
590 case 0x00c0:
591 case WM_USER+19:
592 case 0x00c3:
593 case WM_USER+26:
594 case 0x00ca:
595 FIXME("undocumented message 0x%x, please report\n", msg);
596 result = DefWindowProcW(hwnd, msg, wParam, lParam);
597 break;
598
599 case EM_LINELENGTH16:
600 case EM_LINELENGTH:
601 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
602 break;
603
604 case EM_REPLACESEL16:
605 lParam = (LPARAM)MapSL(lParam);
606 unicode = FALSE; /* 16-bit message is always ascii */
607 /* fall through */
608 case EM_REPLACESEL:
609 {
610 LPWSTR textW;
611
612 if(unicode)
613 textW = (LPWSTR)lParam;
614 else
615 {
616 LPSTR textA = (LPSTR)lParam;
617 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
618 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
619 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
620 }
621
622 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
623 result = 1;
624
625 if(!unicode)
626 HeapFree(GetProcessHeap(), 0, textW);
627 break;
628 }
629
630 case EM_GETLINE16:
631 lParam = (LPARAM)MapSL(lParam);
632 unicode = FALSE; /* 16-bit message is always ascii */
633 /* fall through */
634 case EM_GETLINE:
635 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
636 break;
637
638 case EM_LIMITTEXT16:
639 case EM_SETLIMITTEXT:
640 EDIT_EM_SetLimitText(es, (INT)wParam);
641 break;
642
643 case EM_CANUNDO16:
644 case EM_CANUNDO:
645 result = (LRESULT)EDIT_EM_CanUndo(es);
646 break;
647
648 case EM_UNDO16:
649 case EM_UNDO:
650 case WM_UNDO:
651 result = (LRESULT)EDIT_EM_Undo(es);
652 break;
653
654 case EM_FMTLINES16:
655 case EM_FMTLINES:
656 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
657 break;
658
659 case EM_LINEFROMCHAR16:
660 case EM_LINEFROMCHAR:
661 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
662 break;
663
664 case EM_SETTABSTOPS16:
665 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
666 break;
667 case EM_SETTABSTOPS:
668 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
669 break;
670
671 case EM_SETPASSWORDCHAR16:
672 unicode = FALSE; /* 16-bit message is always ascii */
673 /* fall through */
674 case EM_SETPASSWORDCHAR:
675 {
676 WCHAR charW = 0;
677
678 if(unicode)
679 charW = (WCHAR)wParam;
680 else
681 {
682 CHAR charA = wParam;
683 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
684 }
685
686 EDIT_EM_SetPasswordChar(es, charW);
687 break;
688 }
689
690 case EM_EMPTYUNDOBUFFER16:
691 case EM_EMPTYUNDOBUFFER:
692 EDIT_EM_EmptyUndoBuffer(es);
693 break;
694
695 case EM_GETFIRSTVISIBLELINE16:
696 result = es->y_offset;
697 break;
698 case EM_GETFIRSTVISIBLELINE:
699 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
700 break;
701
702 case EM_SETREADONLY16:
703 case EM_SETREADONLY:
704 if (wParam) {
705 SetWindowLongW( hwnd, GWL_STYLE,
706 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
707 es->style |= ES_READONLY;
708 } else {
709 SetWindowLongW( hwnd, GWL_STYLE,
710 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
711 es->style &= ~ES_READONLY;
712 }
713 result = 1;
714 break;
715
716 case EM_SETWORDBREAKPROC16:
717 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
718 break;
719 case EM_SETWORDBREAKPROC:
720 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
721 break;
722
723 case EM_GETWORDBREAKPROC16:
724 result = (LRESULT)es->word_break_proc16;
725 break;
726 case EM_GETWORDBREAKPROC:
727 result = (LRESULT)es->word_break_proc;
728 break;
729
730 case EM_GETPASSWORDCHAR16:
731 unicode = FALSE; /* 16-bit message is always ascii */
732 /* fall through */
733 case EM_GETPASSWORDCHAR:
734 {
735 if(unicode)
736 result = es->password_char;
737 else
738 {
739 WCHAR charW = es->password_char;
740 CHAR charA = 0;
741 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
742 result = charA;
743 }
744 break;
745 }
746
747 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
748
749 case EM_SETMARGINS:
750 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
751 break;
752
753 case EM_GETMARGINS:
754 result = MAKELONG(es->left_margin, es->right_margin);
755 break;
756
757 case EM_GETLIMITTEXT:
758 result = es->buffer_limit;
759 break;
760
761 case EM_POSFROMCHAR:
762 result = strlenW(es->text);
763 if ((INT)wParam >= result) result = -1;
764 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
765 break;
766
767 case EM_CHARFROMPOS:
768 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
769 break;
770
771 /* End of the EM_ messages which were in numerical order; what order
772 * are these in? vaguely alphabetical?
773 */
774
775 case WM_NCCREATE:
776 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
777 break;
778
779 case WM_DESTROY:
780 result = EDIT_WM_Destroy(es);
781 es = NULL;
782 break;
783
784 case WM_GETDLGCODE:
785 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
786
787 if (es->style & ES_MULTILINE)
788 {
789 result |= DLGC_WANTALLKEYS;
790 break;
791 }
792
793 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
794 {
795 int vk = (int)((LPMSG)lParam)->wParam;
796
797 if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
798 {
799 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
800 result |= DLGC_WANTMESSAGE;
801 }
802 }
803 break;
804
805 case WM_IME_CHAR:
806 if (!unicode)
807 {
808 WCHAR charW;
809 CHAR strng[2];
810
811 strng[0] = wParam >> 8;
812 strng[1] = wParam & 0xff;
813 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
814 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
815 EDIT_WM_Char(es, charW);
816 break;
817 }
818 /* fall through */
819 case WM_CHAR:
820 {
821 WCHAR charW;
822
823 if(unicode)
824 charW = wParam;
825 else
826 {
827 CHAR charA = wParam;
828 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
829 }
830
831 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
832 {
833 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
834 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
835 break;
836 }
837 EDIT_WM_Char(es, charW);
838 break;
839 }
840
841 case WM_CLEAR:
842 EDIT_WM_Clear(es);
843 break;
844
845 case WM_COMMAND:
846 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
847 break;
848
849 case WM_CONTEXTMENU:
850 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
851 break;
852
853 case WM_COPY:
854 EDIT_WM_Copy(es);
855 break;
856
857 case WM_CREATE:
858 if(unicode)
859 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
860 else
861 {
862 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
863 LPWSTR nameW = NULL;
864 if(nameA)
865 {
866 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
867 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
868 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
869 }
870 result = EDIT_WM_Create(es, nameW);
871 HeapFree(GetProcessHeap(), 0, nameW);
872 }
873 break;
874
875 case WM_CUT:
876 EDIT_WM_Cut(es);
877 break;
878
879 case WM_ENABLE:
880 es->bEnableState = (BOOL) wParam;
881 EDIT_UpdateText(es, NULL, TRUE);
882 break;
883
884 case WM_ERASEBKGND:
885 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
886 break;
887
888 case WM_GETFONT:
889 result = (LRESULT)es->font;
890 break;
891
892 case WM_GETTEXT:
893 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
894 break;
895
896 case WM_GETTEXTLENGTH:
897 if (unicode) result = strlenW(es->text);
898 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
899 NULL, 0, NULL, NULL );
900 break;
901
902 case WM_HSCROLL:
903 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
904 break;
905
906 case WM_KEYDOWN:
907 result = EDIT_WM_KeyDown(es, (INT)wParam);
908 break;
909
910 case WM_KILLFOCUS:
911 result = EDIT_WM_KillFocus(es);
912 break;
913
914 case WM_LBUTTONDBLCLK:
915 result = EDIT_WM_LButtonDblClk(es);
916 break;
917
918 case WM_LBUTTONDOWN:
919 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
920 break;
921
922 case WM_LBUTTONUP:
923 result = EDIT_WM_LButtonUp(es);
924 break;
925
926 case WM_MBUTTONDOWN:
927 result = EDIT_WM_MButtonDown(es);
928 break;
929
930 case WM_MOUSEMOVE:
931 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
932 break;
933
934 case WM_PRINTCLIENT:
935 case WM_PAINT:
936 EDIT_WM_Paint(es, (HDC)wParam);
937 break;
938
939 case WM_PASTE:
940 EDIT_WM_Paste(es);
941 break;
942
943 case WM_SETFOCUS:
944 EDIT_WM_SetFocus(es);
945 break;
946
947 case WM_SETFONT:
948 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
949 break;
950
951 case WM_SETREDRAW:
952 /* FIXME: actually set an internal flag and behave accordingly */
953 break;
954
955 case WM_SETTEXT:
956 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
957 result = TRUE;
958 break;
959
960 case WM_SIZE:
961 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
962 break;
963
964 case WM_STYLECHANGED:
965 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
966 break;
967
968 case WM_STYLECHANGING:
969 result = 0; /* See EDIT_WM_StyleChanged */
970 break;
971
972 case WM_SYSKEYDOWN:
973 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
974 break;
975
976 case WM_TIMER:
977 EDIT_WM_Timer(es);
978 break;
979
980 case WM_VSCROLL:
981 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
982 break;
983
984 case WM_MOUSEWHEEL:
985 {
986 int gcWheelDelta = 0;
987 UINT pulScrollLines = 3;
988 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
989
990 if (wParam & (MK_SHIFT | MK_CONTROL)) {
991 result = DefWindowProcW(hwnd, msg, wParam, lParam);
992 break;
993 }
994 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
995 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
996 {
997 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
998 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
999 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
1000 }
1001 }
1002 break;
1003
1004
1005 /* IME messages to make the edit control IME aware */
1006 case WM_IME_SETCONTEXT:
1007 break;
1008
1009 case WM_IME_STARTCOMPOSITION:
1010 /*
1011 * FIXME in IME: This message is not always sent like it should be
1012 */
1013 if (es->selection_start != es->selection_end)
1014 {
1015 static const WCHAR empty_stringW[] = {0};
1016 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1017 }
1018 es->composition_start = es->selection_end;
1019 es->composition_len = 0;
1020 break;
1021
1022 case WM_IME_COMPOSITION:
1023 if (es->composition_len == 0)
1024 {
1025 if (es->selection_start != es->selection_end)
1026 {
1027 static const WCHAR empty_stringW[] = {0};
1028 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
1029 }
1030
1031 es->composition_start = es->selection_end;
1032 }
1033 EDIT_ImeComposition(hwnd,lParam,es);
1034 break;
1035
1036 case WM_IME_ENDCOMPOSITION:
1037 es->composition_len= 0;
1038 break;
1039
1040 case WM_IME_COMPOSITIONFULL:
1041 break;
1042
1043 case WM_IME_SELECT:
1044 break;
1045
1046 case WM_IME_CONTROL:
1047 break;
1048
1049 default:
1050 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
1051 break;
1052 }
1053
1054 if (es) EDIT_UnlockBuffer(es, FALSE);
1055
1056 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
1057
1058 return result;
1059 }
1060
1061 /*********************************************************************
1062 *
1063 * EditWndProcW (USER32.@)
1064 */
1065 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1066 {
1067 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1068 }
1069
1070 /*********************************************************************
1071 *
1072 * EditWndProc (USER32.@)
1073 */
1074 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1075 {
1076 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1077 }
1078
1079 /*********************************************************************
1080 *
1081 * EDIT_BuildLineDefs_ML
1082 *
1083 * Build linked list of text lines.
1084 * Lines can end with '\0' (last line), a character (if it is wrapped),
1085 * a soft return '\r\r\n' or a hard return '\r\n'
1086 *
1087 */
1088 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1089 {
1090 HDC dc;
1091 HFONT old_font = 0;
1092 LPWSTR current_position, cp;
1093 INT fw;
1094 LINEDEF *current_line;
1095 LINEDEF *previous_line;
1096 LINEDEF *start_line;
1097 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1098 INT line_count = es->line_count;
1099 INT orig_net_length;
1100 RECT rc;
1101
1102 if (istart == iend && delta == 0)
1103 return;
1104
1105 dc = GetDC(es->hwndSelf);
1106 if (es->font)
1107 old_font = SelectObject(dc, es->font);
1108
1109 previous_line = NULL;
1110 current_line = es->first_line_def;
1111
1112 /* Find starting line. istart must lie inside an existing line or
1113 * at the end of buffer */
1114 do {
1115 if (istart < current_line->index + current_line->length ||
1116 current_line->ending == END_0)
1117 break;
1118
1119 previous_line = current_line;
1120 current_line = current_line->next;
1121 line_index++;
1122 } while (current_line);
1123
1124 if (!current_line) /* Error occurred start is not inside previous buffer */
1125 {
1126 FIXME(" modification occurred outside buffer\n");
1127 ReleaseDC(es->hwndSelf, dc);
1128 return;
1129 }
1130
1131 /* Remember start of modifications in order to calculate update region */
1132 nstart_line = line_index;
1133 nstart_index = current_line->index;
1134
1135 /* We must start to reformat from the previous line since the modifications
1136 * may have caused the line to wrap upwards. */
1137 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1138 {
1139 line_index--;
1140 current_line = previous_line;
1141 }
1142 start_line = current_line;
1143
1144 fw = es->format_rect.right - es->format_rect.left;
1145 current_position = es->text + current_line->index;
1146 do {
1147 if (current_line != start_line)
1148 {
1149 if (!current_line || current_line->index + delta > current_position - es->text)
1150 {
1151 /* The buffer has been expanded, create a new line and
1152 insert it into the link list */
1153 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1154 new_line->next = previous_line->next;
1155 previous_line->next = new_line;
1156 current_line = new_line;
1157 es->line_count++;
1158 }
1159 else if (current_line->index + delta < current_position - es->text)
1160 {
1161 /* The previous line merged with this line so we delete this extra entry */
1162 previous_line->next = current_line->next;
1163 HeapFree(GetProcessHeap(), 0, current_line);
1164 current_line = previous_line->next;
1165 es->line_count--;
1166 continue;
1167 }
1168 else /* current_line->index + delta == current_position */
1169 {
1170 if (current_position - es->text > iend)
1171 break; /* We reached end of line modifications */
1172 /* else recalulate this line */
1173 }
1174 }
1175
1176 current_line->index = current_position - es->text;
1177 orig_net_length = current_line->net_length;
1178
1179 /* Find end of line */
1180 cp = current_position;
1181 while (*cp) {
1182 if (*cp == '\n') break;
1183 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1184 break;
1185 cp++;
1186 }
1187
1188 /* Mark type of line termination */
1189 if (!(*cp)) {
1190 current_line->ending = END_0;
1191 current_line->net_length = strlenW(current_position);
1192 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1193 current_line->ending = END_SOFT;
1194 current_line->net_length = cp - current_position - 1;
1195 } else if (*cp == '\n') {
1196 current_line->ending = END_RICH;
1197 current_line->net_length = cp - current_position;
1198 } else {
1199 current_line->ending = END_HARD;
1200 current_line->net_length = cp - current_position;
1201 }
1202
1203 /* Calculate line width */
1204 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1205 current_position, current_line->net_length,
1206 es->tabs_count, es->tabs));
1207
1208 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1209 if (!(es->style & ES_AUTOHSCROLL)) {
1210 if (current_line->width > fw) {
1211 INT next = 0;
1212 INT prev;
1213 do {
1214 prev = next;
1215 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1216 prev + 1, current_line->net_length, WB_RIGHT);
1217 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1218 current_position, next, es->tabs_count, es->tabs));
1219 } while (current_line->width <= fw);
1220 if (!prev) { /* Didn't find a line break so force a break */
1221 next = 0;
1222 do {
1223 prev = next;
1224 next++;
1225 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1226 current_position, next, es->tabs_count, es->tabs));
1227 } while (current_line->width <= fw);
1228 if (!prev)
1229 prev = 1;
1230 }
1231
1232 /* If the first line we are calculating, wrapped before istart, we must
1233 * adjust istart in order for this to be reflected in the update region. */
1234 if (current_line->index == nstart_index && istart > current_line->index + prev)
1235 istart = current_line->index + prev;
1236 /* else if we are updating the previous line before the first line we
1237 * are re-calculating and it expanded */
1238 else if (current_line == start_line &&
1239 current_line->index != nstart_index && orig_net_length < prev)
1240 {
1241 /* Line expanded due to an upwards line wrap so we must partially include
1242 * previous line in update region */
1243 nstart_line = line_index;
1244 nstart_index = current_line->index;
1245 istart = current_line->index + orig_net_length;
1246 }
1247
1248 current_line->net_length = prev;
1249 current_line->ending = END_WRAP;
1250 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1251 current_line->net_length, es->tabs_count, es->tabs));
1252 }
1253 else if (orig_net_length < current_line->net_length &&
1254 current_line == start_line &&
1255 current_line->index != nstart_index) {
1256 /* The previous line expanded but it's still not as wide as the client rect */
1257 /* The expansion is due to an upwards line wrap so we must partially include
1258 it in the update region */
1259 nstart_line = line_index;
1260 nstart_index = current_line->index;
1261 istart = current_line->index + orig_net_length;
1262 }
1263 }
1264
1265
1266 /* Adjust length to include line termination */
1267 switch (current_line->ending) {
1268 case END_SOFT:
1269 current_line->length = current_line->net_length + 3;
1270 break;
1271 case END_RICH:
1272 current_line->length = current_line->net_length + 1;
1273 break;
1274 case END_HARD:
1275 current_line->length = current_line->net_length + 2;
1276 break;
1277 case END_WRAP:
1278 case END_0:
1279 current_line->length = current_line->net_length;
1280 break;
1281 }
1282 es->text_width = max(es->text_width, current_line->width);
1283 current_position += current_line->length;
1284 previous_line = current_line;
1285 current_line = current_line->next;
1286 line_index++;
1287 } while (previous_line->ending != END_0);
1288
1289 /* Finish adjusting line indexes by delta or remove hanging lines */
1290 if (previous_line->ending == END_0)
1291 {
1292 LINEDEF *pnext = NULL;
1293
1294 previous_line->next = NULL;
1295 while (current_line)
1296 {
1297 pnext = current_line->next;
1298 HeapFree(GetProcessHeap(), 0, current_line);
1299 current_line = pnext;
1300 es->line_count--;
1301 }
1302 }
1303 else if (delta != 0)
1304 {
1305 while (current_line)
1306 {
1307 current_line->index += delta;
1308 current_line = current_line->next;
1309 }
1310 }
1311
1312 /* Calculate rest of modification rectangle */
1313 if (hrgn)
1314 {
1315 HRGN tmphrgn;
1316 /*
1317 * We calculate two rectangles. One for the first line which may have
1318 * an indent with respect to the format rect. The other is a format-width
1319 * rectangle that spans the rest of the lines that changed or moved.
1320 */
1321 rc.top = es->format_rect.top + nstart_line * es->line_height -
1322 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1323 rc.bottom = rc.top + es->line_height;
1324 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
1325 rc.left = es->format_rect.left;
1326 else
1327 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1328 es->text + nstart_index, istart - nstart_index,
1329 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1330 rc.right = es->format_rect.right;
1331 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1332
1333 rc.top = rc.bottom;
1334 rc.left = es->format_rect.left;
1335 rc.right = es->format_rect.right;
1336 /*
1337 * If lines were added or removed we must re-paint the remainder of the
1338 * lines since the remaining lines were either shifted up or down.
1339 */
1340 if (line_count < es->line_count) /* We added lines */
1341 rc.bottom = es->line_count * es->line_height;
1342 else if (line_count > es->line_count) /* We removed lines */
1343 rc.bottom = line_count * es->line_height;
1344 else
1345 rc.bottom = line_index * es->line_height;
1346 rc.bottom += es->format_rect.top;
1347 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1348 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1349 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1350 DeleteObject(tmphrgn);
1351 }
1352
1353 if (es->font)
1354 SelectObject(dc, old_font);
1355
1356 ReleaseDC(es->hwndSelf, dc);
1357 }
1358
1359 /*********************************************************************
1360 *
1361 * EDIT_CalcLineWidth_SL
1362 *
1363 */
1364 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1365 {
1366 SIZE size;
1367 LPWSTR text;
1368 HDC dc;
1369 HFONT old_font = 0;
1370
1371 text = EDIT_GetPasswordPointer_SL(es);
1372
1373 dc = GetDC(es->hwndSelf);
1374 if (es->font)
1375 old_font = SelectObject(dc, es->font);
1376
1377 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
1378
1379 if (es->font)
1380 SelectObject(dc, old_font);
1381 ReleaseDC(es->hwndSelf, dc);
1382
1383 if (es->style & ES_PASSWORD)
1384 HeapFree(GetProcessHeap(), 0, text);
1385
1386 es->text_width = size.cx;
1387 }
1388
1389 /*********************************************************************
1390 *
1391 * EDIT_CallWordBreakProc
1392 *
1393 * Call appropriate WordBreakProc (internal or external).
1394 *
1395 * Note: The "start" argument should always be an index referring
1396 * to es->text. The actual wordbreak proc might be
1397 * 16 bit, so we can't always pass any 32 bit LPSTR.
1398 * Hence we assume that es->text is the buffer that holds
1399 * the string under examination (we can decide this for ourselves).
1400 *
1401 */
1402 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1403 {
1404 INT ret;
1405
1406 if (es->word_break_proc16) {
1407 HGLOBAL16 hglob16;
1408 SEGPTR segptr;
1409 INT countA;
1410 WORD args[5];
1411 DWORD result;
1412
1413 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1414 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1415 segptr = WOWGlobalLock16(hglob16);
1416 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1417 args[4] = SELECTOROF(segptr);
1418 args[3] = OFFSETOF(segptr);
1419 args[2] = index;
1420 args[1] = countA;
1421 args[0] = action;
1422 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1423 ret = LOWORD(result);
1424 GlobalUnlock16(hglob16);
1425 GlobalFree16(hglob16);
1426 }
1427 else if (es->word_break_proc)
1428 {
1429 if(es->is_unicode)
1430 {
1431 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1432
1433 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1434 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1435 ret = wbpW(es->text + start, index, count, action);
1436 }
1437 else
1438 {
1439 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1440 INT countA;
1441 CHAR *textA;
1442
1443 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1444 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1445 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1446 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1447 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1448 ret = wbpA(textA, index, countA, action);
1449 HeapFree(GetProcessHeap(), 0, textA);
1450 }
1451 }
1452 else
1453 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1454
1455 return ret;
1456 }
1457
1458
1459 /*********************************************************************
1460 *
1461 * EDIT_CharFromPos
1462 *
1463 * Beware: This is not the function called on EM_CHARFROMPOS
1464 * The position _can_ be outside the formatting / client
1465 * rectangle
1466 * The return value is only the character index
1467 *
1468 */
1469 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1470 {
1471 INT index;
1472 HDC dc;
1473 HFONT old_font = 0;
1474 INT x_high = 0, x_low = 0;
1475
1476 if (es->style & ES_MULTILINE) {
1477 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1478 INT line_index = 0;
1479 LINEDEF *line_def = es->first_line_def;
1480 INT low, high;
1481 while ((line > 0) && line_def->next) {
1482 line_index += line_def->length;
1483 line_def = line_def->next;
1484 line--;
1485 }
1486 x += es->x_offset - es->format_rect.left;
1487 if (es->style & ES_RIGHT)
1488 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
1489 else if (es->style & ES_CENTER)
1490 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
1491 if (x >= line_def->width) {
1492 if (after_wrap)
1493 *after_wrap = (line_def->ending == END_WRAP);
1494 return line_index + line_def->net_length;
1495 }
1496 if (x <= 0) {
1497 if (after_wrap)
1498 *after_wrap = FALSE;
1499 return line_index;
1500 }
1501 dc = GetDC(es->hwndSelf);
1502 if (es->font)
1503 old_font = SelectObject(dc, es->font);
1504 low = line_index;
1505 high = line_index + line_def->net_length + 1;
1506 while (low < high - 1)
1507 {
1508 INT mid = (low + high) / 2;
1509 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
1510 if (x_now > x) {
1511 high = mid;
1512 x_high = x_now;
1513 } else {
1514 low = mid;
1515 x_low = x_now;
1516 }
1517 }
1518 if (abs(x_high - x) + 1 <= abs(x_low - x))
1519 index = high;
1520 else
1521 index = low;
1522
1523 if (after_wrap)
1524 *after_wrap = ((index == line_index + line_def->net_length) &&
1525 (line_def->ending == END_WRAP));
1526 } else {
1527 LPWSTR text;
1528 SIZE size;
1529 if (after_wrap)
1530 *after_wrap = FALSE;
1531 x -= es->format_rect.left;
1532 if (!x)
1533 return es->x_offset;
1534
1535 if (!es->x_offset)
1536 {
1537 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
1538 if (es->style & ES_RIGHT)
1539 x -= indent;
1540 else if (es->style & ES_CENTER)
1541 x -= indent / 2;
1542 }
1543
1544 text = EDIT_GetPasswordPointer_SL(es);
1545 dc = GetDC(es->hwndSelf);
1546 if (es->font)
1547 old_font = SelectObject(dc, es->font);
1548 if (x < 0)
1549 {
1550 INT low = 0;
1551 INT high = es->x_offset;
1552 while (low < high - 1)
1553 {
1554 INT mid = (low + high) / 2;
1555 GetTextExtentPoint32W( dc, text + mid,
1556 es->x_offset - mid, &size );
1557 if (size.cx > -x) {
1558 low = mid;
1559 x_low = size.cx;
1560 } else {
1561 high = mid;
1562 x_high = size.cx;
1563 }
1564 }
1565 if (abs(x_high + x) <= abs(x_low + x) + 1)
1566 index = high;
1567 else
1568 index = low;
1569 }
1570 else
1571 {
1572 INT low = es->x_offset;
1573 INT high = strlenW(es->text) + 1;
1574 while (low < high - 1)
1575 {
1576 INT mid = (low + high) / 2;
1577 GetTextExtentPoint32W( dc, text + es->x_offset,
1578 mid - es->x_offset, &size );
1579 if (size.cx > x) {
1580 high = mid;
1581 x_high = size.cx;
1582 } else {
1583 low = mid;
1584 x_low = size.cx;
1585 }
1586 }
1587 if (abs(x_high - x) <= abs(x_low - x) + 1)
1588 index = high;
1589 else
1590 index = low;
1591 }
1592 if (es->style & ES_PASSWORD)
1593 HeapFree(GetProcessHeap(), 0, text);
1594 }
1595 if (es->font)
1596 SelectObject(dc, old_font);
1597 ReleaseDC(es->hwndSelf, dc);
1598 return index;
1599 }
1600
1601
1602 /*********************************************************************
1603 *
1604 * EDIT_ConfinePoint
1605 *
1606 * adjusts the point to be within the formatting rectangle
1607 * (so CharFromPos returns the nearest _visible_ character)
1608 *
1609 */
1610 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1611 {
1612 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1613 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1614 }
1615
1616
1617 /*********************************************************************
1618 *
1619 * EDIT_GetLineRect
1620 *
1621 * Calculates the bounding rectangle for a line from a starting
1622 * column to an ending column.
1623 *
1624 */
1625 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1626 {
1627 INT line_index = EDIT_EM_LineIndex(es, line);
1628
1629 if (es->style & ES_MULTILINE)
1630 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1631 else
1632 rc->top = es->format_rect.top;
1633 rc->bottom = rc->top + es->line_height;
1634 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1635 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1636 }
1637
1638
1639 /*********************************************************************
1640 *
1641 * EDIT_GetPasswordPointer_SL
1642 *
1643 * note: caller should free the (optionally) allocated buffer
1644 *
1645 */
1646 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1647 {
1648 if (es->style & ES_PASSWORD) {
1649 INT len = strlenW(es->text);
1650 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1651 text[len] = '\0';
1652 while(len) text[--len] = es->password_char;
1653 return text;
1654 } else
1655 return es->text;
1656 }
1657
1658
1659 /*********************************************************************
1660 *
1661 * EDIT_LockBuffer
1662 *
1663 * This acts as a LocalLock16(), but it locks only once. This way
1664 * you can call it whenever you like, without unlocking.
1665 *
1666 * Initially the edit control allocates a HLOCAL32 buffer
1667 * (32 bit linear memory handler). However, 16 bit application
1668 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1669 * handler). From that moment on we have to keep using this 16 bit memory
1670 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1671 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1672 * conversion.
1673 *
1674 */
1675 static void EDIT_LockBuffer(EDITSTATE *es)
1676 {
1677 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
1678 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1679
1680 if (!es->text) {
1681 CHAR *textA = NULL;
1682 UINT countA = 0;
1683 BOOL _16bit = FALSE;
1684
1685 if(es->hloc32W)
1686 {
1687 if(es->hloc32A)
1688 {
1689 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1690 textA = LocalLock(es->hloc32A);
1691 countA = strlen(textA) + 1;
1692 }
1693 else if(es->hloc16)
1694 {
1695 HANDLE16 oldDS = stack16->ds;
1696 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1697 stack16->ds = hInstance;
1698 textA = MapSL(LocalLock16(es->hloc16));
1699 stack16->ds = oldDS;
1700 countA = strlen(textA) + 1;
1701 _16bit = TRUE;
1702 }
1703 }
1704 else {
1705 ERR("no buffer ... please report\n");
1706 return;
1707 }
1708
1709 if(textA)
1710 {
1711 HLOCAL hloc32W_new;
1712 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1713 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1714 if(countW_new > es->buffer_size + 1)
1715 {
1716 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1717 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1718 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1719 if(hloc32W_new)
1720 {
1721 es->hloc32W = hloc32W_new;
1722 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1723 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1724 }
1725 else
1726 WARN("FAILED! Will synchronize partially\n");
1727 }
1728 }
1729
1730 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1731 es->text = LocalLock(es->hloc32W);
1732
1733 if(textA)
1734 {
1735 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1736 if(_16bit)
1737 {
1738 HANDLE16 oldDS = stack16->ds;
1739 stack16->ds = hInstance;
1740 LocalUnlock16(es->hloc16);
1741 stack16->ds = oldDS;
1742 }
1743 else
1744 LocalUnlock(es->hloc32A);
1745 }
1746 }
1747 es->lock_count++;
1748 }
1749
1750
1751 /*********************************************************************
1752 *
1753 * EDIT_SL_InvalidateText
1754 *
1755 * Called from EDIT_InvalidateText().
1756 * Does the job for single-line controls only.
1757 *
1758 */
1759 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1760 {
1761 RECT line_rect;
1762 RECT rc;
1763
1764 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1765 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1766 EDIT_UpdateText(es, &rc, TRUE);
1767 }
1768
1769
1770 /*********************************************************************
1771 *
1772 * EDIT_ML_InvalidateText
1773 *
1774 * Called from EDIT_InvalidateText().
1775 * Does the job for multi-line controls only.
1776 *
1777 */
1778 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1779 {
1780 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1781 INT sl = EDIT_EM_LineFromChar(es, start);
1782 INT el = EDIT_EM_LineFromChar(es, end);
1783 INT sc;
1784 INT ec;
1785 RECT rc1;
1786 RECT rcWnd;
1787 RECT rcLine;
1788 RECT rcUpdate;
1789 INT l;
1790
1791 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1792 return;
1793
1794 sc = start - EDIT_EM_LineIndex(es, sl);
1795 ec = end - EDIT_EM_LineIndex(es, el);
1796 if (sl < es->y_offset) {
1797 sl = es->y_offset;
1798 sc = 0;
1799 }
1800 if (el > es->y_offset + vlc) {
1801 el = es->y_offset + vlc;
1802 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1803 }
1804 GetClientRect(es->hwndSelf, &rc1);
1805 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1806 if (sl == el) {
1807 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1808 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1809 EDIT_UpdateText(es, &rcUpdate, TRUE);
1810 } else {
1811 EDIT_GetLineRect(es, sl, sc,
1812 EDIT_EM_LineLength(es,
1813 EDIT_EM_LineIndex(es, sl)),
1814 &rcLine);
1815 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1816 EDIT_UpdateText(es, &rcUpdate, TRUE);
1817 for (l = sl + 1 ; l < el ; l++) {
1818 EDIT_GetLineRect(es, l, 0,
1819 EDIT_EM_LineLength(es,
1820 EDIT_EM_LineIndex(es, l)),
1821 &rcLine);
1822 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1823 EDIT_UpdateText(es, &rcUpdate, TRUE);
1824 }
1825 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1826 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1827 EDIT_UpdateText(es, &rcUpdate, TRUE);
1828 }
1829 }
1830
1831
1832 /*********************************************************************
1833 *
1834 * EDIT_InvalidateText
1835 *
1836 * Invalidate the text from offset start up to, but not including,
1837 * offset end. Useful for (re)painting the selection.
1838 * Regions outside the linewidth are not invalidated.
1839 * end == -1 means end == TextLength.
1840 * start and end need not be ordered.
1841 *
1842 */
1843 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1844 {
1845 if (end == start)
1846 return;
1847
1848 if (end == -1)
1849 end = strlenW(es->text);
1850
1851 if (end < start) {
1852 INT tmp = start;
1853 start = end;
1854 end = tmp;
1855 }
1856
1857 if (es->style & ES_MULTILINE)
1858 EDIT_ML_InvalidateText(es, start, end);
1859 else
1860 EDIT_SL_InvalidateText(es, start, end);
1861 }
1862
1863
1864 /*********************************************************************
1865 *
1866 * EDIT_MakeFit
1867 *
1868 * Try to fit size + 1 characters in the buffer.
1869 */
1870 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1871 {
1872 HLOCAL hNew32W;
1873
1874 if (size <= es->buffer_size)
1875 return TRUE;
1876
1877 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1878
1879 /* Force edit to unlock it's buffer. es->text now NULL */
1880 EDIT_UnlockBuffer(es, TRUE);
1881
1882 if (es->hloc32W) {
1883 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1884 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1885 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1886 es->hloc32W = hNew32W;
1887 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1888 }
1889 }
1890
1891 EDIT_LockBuffer(es);
1892
1893 if (es->buffer_size < size) {
1894 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1895 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1896 return FALSE;
1897 } else {
1898 TRACE("We now have %d+1\n", es->buffer_size);
1899 return TRUE;
1900 }
1901 }
1902
1903
1904 /*********************************************************************
1905 *
1906 * EDIT_MakeUndoFit
1907 *
1908 * Try to fit size + 1 bytes in the undo buffer.
1909 *
1910 */
1911 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1912 {
1913 UINT alloc_size;
1914
1915 if (size <= es->undo_buffer_size)
1916 return TRUE;
1917
1918 TRACE("trying to ReAlloc to %d+1\n", size);
1919
1920 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1921 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1922 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1923 return TRUE;
1924 }
1925 else
1926 {
1927 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1928 return FALSE;
1929 }
1930 }
1931
1932
1933 /*********************************************************************
1934 *
1935 * EDIT_MoveBackward
1936 *
1937 */
1938 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1939 {
1940 INT e = es->selection_end;
1941
1942 if (e) {
1943 e--;
1944 if ((es->style & ES_MULTILINE) && e &&
1945 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1946 e--;
1947 if (e && (es->text[e - 1] == '\r'))
1948 e--;
1949 }
1950 }
1951 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1952 EDIT_EM_ScrollCaret(es);
1953 }
1954
1955
1956 /*********************************************************************
1957 *
1958 * EDIT_MoveDown_ML
1959 *
1960 * Only for multi line controls
1961 * Move the caret one line down, on a column with the nearest
1962 * x coordinate on the screen (might be a different column).
1963 *
1964 */
1965 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1966 {
1967 INT s = es->selection_start;
1968 INT e = es->selection_end;
1969 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1970 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1971 INT x = (short)LOWORD(pos);
1972 INT y = (short)HIWORD(pos);
1973
1974 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1975 if (!extend)
1976 s = e;
1977 EDIT_EM_SetSel(es, s, e, after_wrap);
1978 EDIT_EM_ScrollCaret(es);
1979 }
1980
1981
1982 /*********************************************************************
1983 *
1984 * EDIT_MoveEnd
1985 *
1986 */
1987 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1988 {
1989 BOOL after_wrap = FALSE;
1990 INT e;
1991
1992 /* Pass a high value in x to make sure of receiving the end of the line */
1993 if (es->style & ES_MULTILINE)
1994 e = EDIT_CharFromPos(es, 0x3fffffff,
1995 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1996 else
1997 e = strlenW(es->text);
1998 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1999 EDIT_EM_ScrollCaret(es);
2000 }
2001
2002
2003 /*********************************************************************
2004 *
2005 * EDIT_MoveForward
2006 *
2007 */
2008 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
2009 {
2010 INT e = es->selection_end;
2011
2012 if (es->text[e]) {
2013 e++;
2014 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
2015 if (es->text[e] == '\n')
2016 e++;
2017 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
2018 e += 2;
2019 }
2020 }
2021 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2022 EDIT_EM_ScrollCaret(es);
2023 }
2024
2025
2026 /*********************************************************************
2027 *
2028 * EDIT_MoveHome
2029 *
2030 * Home key: move to beginning of line.
2031 *
2032 */
2033 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
2034 {
2035 INT e;
2036
2037 /* Pass the x_offset in x to make sure of receiving the first position of the line */
2038 if (es->style & ES_MULTILINE)
2039 e = EDIT_CharFromPos(es, -es->x_offset,
2040 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
2041 else
2042 e = 0;
2043 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
2044 EDIT_EM_ScrollCaret(es);
2045 }
2046
2047
2048 /*********************************************************************
2049 *
2050 * EDIT_MovePageDown_ML
2051 *
2052 * Only for multi line controls
2053 * Move the caret one page down, on a column with the nearest
2054 * x coordinate on the screen (might be a different column).
2055 *
2056 */
2057 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
2058 {
2059 INT s = es->selection_start;
2060 INT e = es->selection_end;
2061 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2062 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2063 INT x = (short)LOWORD(pos);
2064 INT y = (short)HIWORD(pos);
2065
2066 e = EDIT_CharFromPos(es, x,
2067 y + (es->format_rect.bottom - es->format_rect.top),
2068 &after_wrap);
2069 if (!extend)
2070 s = e;
2071 EDIT_EM_SetSel(es, s, e, after_wrap);
2072 EDIT_EM_ScrollCaret(es);
2073 }
2074
2075
2076 /*********************************************************************
2077 *
2078 * EDIT_MovePageUp_ML
2079 *
2080 * Only for multi line controls
2081 * Move the caret one page up, on a column with the nearest
2082 * x coordinate on the screen (might be a different column).
2083 *
2084 */
2085 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
2086 {
2087 INT s = es->selection_start;
2088 INT e = es->selection_end;
2089 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2090 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2091 INT x = (short)LOWORD(pos);
2092 INT y = (short)HIWORD(pos);
2093
2094 e = EDIT_CharFromPos(es, x,
2095 y - (es->format_rect.bottom - es->format_rect.top),
2096 &after_wrap);
2097 if (!extend)
2098 s = e;
2099 EDIT_EM_SetSel(es, s, e, after_wrap);
2100 EDIT_EM_ScrollCaret(es);
2101 }
2102
2103
2104 /*********************************************************************
2105 *
2106 * EDIT_MoveUp_ML
2107 *
2108 * Only for multi line controls
2109 * Move the caret one line up, on a column with the nearest
2110 * x coordinate on the screen (might be a different column).
2111 *
2112 */
2113 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
2114 {
2115 INT s = es->selection_start;
2116 INT e = es->selection_end;
2117 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2118 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
2119 INT x = (short)LOWORD(pos);
2120 INT y = (short)HIWORD(pos);
2121
2122 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
2123 if (!extend)
2124 s = e;
2125 EDIT_EM_SetSel(es, s, e, after_wrap);
2126 EDIT_EM_ScrollCaret(es);
2127 }
2128
2129
2130 /*********************************************************************
2131 *
2132 * EDIT_MoveWordBackward
2133 *
2134 */
2135 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2136 {
2137 INT s = es->selection_start;
2138 INT e = es->selection_end;
2139 INT l;
2140 INT ll;
2141 INT li;
2142
2143 l = EDIT_EM_LineFromChar(es, e);
2144 ll = EDIT_EM_LineLength(es, e);
2145 li = EDIT_EM_LineIndex(es, l);
2146 if (e - li == 0) {
2147 if (l) {
2148 li = EDIT_EM_LineIndex(es, l - 1);
2149 e = li + EDIT_EM_LineLength(es, li);
2150 }
2151 } else {
2152 e = li + (INT)EDIT_CallWordBreakProc(es,
2153 li, e - li, ll, WB_LEFT);
2154 }
2155 if (!extend)
2156 s = e;
2157 EDIT_EM_SetSel(es, s, e, FALSE);
2158 EDIT_EM_ScrollCaret(es);
2159 }
2160
2161
2162 /*********************************************************************
2163 *
2164 * EDIT_MoveWordForward
2165 *
2166 */
2167 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2168 {
2169 INT s = es->selection_start;
2170 INT e = es->selection_end;
2171 INT l;
2172 INT ll;
2173 INT li;
2174
2175 l = EDIT_EM_LineFromChar(es, e);
2176 ll = EDIT_EM_LineLength(es, e);
2177 li = EDIT_EM_LineIndex(es, l);
2178 if (e - li == ll) {
2179 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2180 e = EDIT_EM_LineIndex(es, l + 1);
2181 } else {
2182 e = li + EDIT_CallWordBreakProc(es,
2183 li, e - li + 1, ll, WB_RIGHT);
2184 }
2185 if (!extend)
2186 s = e;
2187 EDIT_EM_SetSel(es, s, e, FALSE);
2188 EDIT_EM_ScrollCaret(es);
2189 }
2190
2191
2192 /*********************************************************************
2193 *
2194 * EDIT_PaintLine
2195 *
2196 */
2197 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2198 {
2199 INT s = es->selection_start;
2200 INT e = es->selection_end;
2201 INT li;
2202 INT ll;
2203 INT x;
2204 INT y;
2205 LRESULT pos;
2206
2207 if (es->style & ES_MULTILINE) {
2208 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2209 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2210 return;
2211 } else if (line)
2212 return;
2213
2214 TRACE("line=%d\n", line);
2215
2216 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2217 x = (short)LOWORD(pos);
2218 y = (short)HIWORD(pos);
2219 li = EDIT_EM_LineIndex(es, line);
2220 ll = EDIT_EM_LineLength(es, li);
2221 s = min(es->selection_start, es->selection_end);
2222 e = max(es->selection_start, es->selection_end);
2223 s = min(li + ll, max(li, s));
2224 e = min(li + ll, max(li, e));
2225 if (rev && (s != e) &&
2226 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2227 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2228 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2229 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2230 } else
2231 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2232 }
2233
2234
2235 /*********************************************************************
2236 *
2237 * EDIT_PaintText
2238 *
2239 */
2240 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2241 {
2242 COLORREF BkColor;
2243 COLORREF TextColor;
2244 LOGFONTW underline_font;
2245 HFONT hUnderline = 0;
2246 HFONT old_font = 0;
2247 INT ret;
2248 INT li;
2249 INT BkMode;
2250 SIZE size;
2251
2252 if (!count)
2253 return 0;
2254 BkMode = GetBkMode(dc);
2255 BkColor = GetBkColor(dc);
2256 TextColor = GetTextColor(dc);
2257 if (rev) {
2258 if (es->composition_len == 0)
2259 {
2260 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2261 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2262 SetBkMode( dc, OPAQUE);
2263 }
2264 else
2265 {
2266 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2267 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2268 underline_font.lfUnderline = TRUE;
2269 hUnderline = CreateFontIndirectW(&underline_font);
2270 old_font = SelectObject(dc,hUnderline);
2271 }
2272 }
2273 li = EDIT_EM_LineIndex(es, line);
2274 if (es->style & ES_MULTILINE) {
2275 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2276 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2277 } else {
2278 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2279 TextOutW(dc, x, y, text + li + col, count);
2280 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2281 ret = size.cx;
2282 if (es->style & ES_PASSWORD)
2283 HeapFree(GetProcessHeap(), 0, text);
2284 }
2285 if (rev) {
2286 if (es->composition_len == 0)
2287 {
2288 SetBkColor(dc, BkColor);
2289 SetTextColor(dc, TextColor);
2290 SetBkMode( dc, BkMode);
2291 }
2292 else
2293 {
2294 if (old_font)
2295 SelectObject(dc,old_font);
2296 if (hUnderline)
2297 DeleteObject(hUnderline);
2298 }
2299 }
2300 return ret;
2301 }
2302
2303
2304 /*********************************************************************
2305 *
2306 * EDIT_SetCaretPos
2307 *
2308 */
2309 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2310 BOOL after_wrap)
2311 {
2312 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2313 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2314 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2315 }
2316
2317
2318 /*********************************************************************
2319 *
2320 * EDIT_AdjustFormatRect
2321 *
2322 * Adjusts the format rectangle for the current font and the
2323 * current client rectangle.
2324 *
2325 */
2326 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2327 {
2328 RECT ClientRect;
2329
2330 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2331 if (es->style & ES_MULTILINE)
2332 {
2333 INT fw, vlc, max_x_offset, max_y_offset;
2334
2335 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2336 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2337
2338 /* correct es->x_offset */
2339 fw = es->format_rect.right - es->format_rect.left;
2340 max_x_offset = es->text_width - fw;
2341 if(max_x_offset < 0) max_x_offset = 0;
2342 if(es->x_offset > max_x_offset)
2343 es->x_offset = max_x_offset;
2344
2345 /* correct es->y_offset */
2346 max_y_offset = es->line_count - vlc;
2347 if(max_y_offset < 0) max_y_offset = 0;
2348 if(es->y_offset > max_y_offset)
2349 es->y_offset = max_y_offset;
2350
2351 /* force scroll info update */
2352 EDIT_UpdateScrollInfo(es);
2353 }
2354 else
2355 /* Windows doesn't care to fix text placement for SL controls */
2356 es->format_rect.bottom = es->format_rect.top + es->line_height;
2357
2358 /* Always stay within the client area */
2359 GetClientRect(es->hwndSelf, &ClientRect);
2360 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2361
2362 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2363 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2364
2365 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2366 }
2367
2368
2369 /*********************************************************************
2370 *
2371 * EDIT_SetRectNP
2372 *
2373 * note: this is not (exactly) the handler called on EM_SETRECTNP
2374 * it is also used to set the rect of a single line control
2375 *
2376 */
2377 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2378 {
2379 LONG_PTR ExStyle;
2380 INT bw, bh;
2381 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2382
2383 CopyRect(&es->format_rect, rc);
2384
2385 if (ExStyle & WS_EX_CLIENTEDGE) {
2386 es->format_rect.left++;
2387 es->format_rect.right--;
2388
2389 if (es->format_rect.bottom - es->format_rect.top
2390 >= es->line_height + 2)
2391 {
2392 es->format_rect.top++;
2393 es->format_rect.bottom--;
2394 }
2395 }
2396 else if (es->style & WS_BORDER) {
2397 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2398 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2399 es->format_rect.left += bw;
2400 es->format_rect.right -= bw;
2401 if (es->format_rect.bottom - es->format_rect.top
2402 >= es->line_height + 2 * bh)
2403 {
2404 es->format_rect.top += bh;
2405 es->format_rect.bottom -= bh;
2406 }
2407 }
2408
2409 es->format_rect.left += es->left_margin;
2410 es->format_rect.right -= es->right_margin;
2411 EDIT_AdjustFormatRect(es);
2412 }
2413
2414
2415 /*********************************************************************
2416 *
2417 * EDIT_UnlockBuffer
2418 *
2419 */
2420 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2421 {
2422
2423 /* Edit window might be already destroyed */
2424 if(!IsWindow(es->hwndSelf))
2425 {
2426 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2427 return;
2428 }
2429
2430 if (!es->lock_count) {
2431 ERR("lock_count == 0 ... please report\n");
2432 return;
2433 }
2434 if (!es->text) {
2435 ERR("es->text == 0 ... please report\n");
2436 return;
2437 }
2438
2439 if (force || (es->lock_count == 1)) {
2440 if (es->hloc32W) {
2441 CHAR *textA = NULL;
2442 UINT countA = 0;
2443 UINT countW = strlenW(es->text) + 1;
2444 STACK16FRAME* stack16 = NULL;
2445 HANDLE16 oldDS = 0;
2446
2447 if(es->hloc32A)
2448 {
2449 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2450 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2451 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2452 countA = LocalSize(es->hloc32A);
2453 if(countA_new > countA)
2454 {
2455 HLOCAL hloc32A_new;
2456 UINT alloc_size = ROUND_TO_GROW(countA_new);
2457 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2458 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2459 if(hloc32A_new)
2460 {
2461 es->hloc32A = hloc32A_new;
2462 countA = LocalSize(hloc32A_new);
2463 TRACE("Real new size %d bytes\n", countA);
2464 }
2465 else
2466 WARN("FAILED! Will synchronize partially\n");
2467 }
2468 textA = LocalLock(es->hloc32A);
2469 }
2470 else if(es->hloc16)
2471 {
2472 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2473
2474 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2475 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2476
2477 stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
2478 oldDS = stack16->ds;
2479 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2480
2481 countA = LocalSize16(es->hloc16);
2482 if(countA_new > countA)
2483 {
2484 HLOCAL16 hloc16_new;
2485 UINT alloc_size = ROUND_TO_GROW(countA_new);
2486 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2487 hloc16_new = LocalReAlloc16(es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2488 if(hloc16_new)
2489 {
2490 es->hloc16 = hloc16_new;
2491 countA = LocalSize16(hloc16_new);
2492 TRACE("Real new size %d bytes\n", countA);
2493 }
2494 else
2495 WARN("FAILED! Will synchronize partially\n");
2496 }
2497 textA = MapSL(LocalLock16(es->hloc16));
2498 }
2499
2500 if(textA)
2501 {
2502 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2503 if(stack16)
2504 LocalUnlock16(es->hloc16);
2505 else
2506 LocalUnlock(es->hloc32A);
2507 }
2508
2509 if (stack16) stack16->ds = oldDS;
2510 LocalUnlock(es->hloc32W);
2511 es->text = NULL;
2512 }
2513 else {
2514 ERR("no buffer ... please report\n");
2515 return;
2516 }
2517 }
2518 es->lock_count--;
2519 }
2520
2521
2522 /*********************************************************************
2523 *
2524 * EDIT_UpdateScrollInfo
2525 *
2526 */
2527 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2528 {
2529 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2530 {
2531 SCROLLINFO si;
2532 si.cbSize = sizeof(SCROLLINFO);
2533 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2534 si.nMin = 0;
2535 si.nMax = es->line_count - 1;
2536 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2537 si.nPos = es->y_offset;
2538 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2539 si.nMin, si.nMax, si.nPage, si.nPos);
2540 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2541 }
2542
2543 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2544 {
2545 SCROLLINFO si;
2546 si.cbSize = sizeof(SCROLLINFO);
2547 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2548 si.nMin = 0;
2549 si.nMax = es->text_width - 1;
2550 si.nPage = es->format_rect.right - es->format_rect.left;
2551 si.nPos = es->x_offset;
2552 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2553 si.nMin, si.nMax, si.nPage, si.nPos);
2554 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2555 }
2556 }
2557
2558 /*********************************************************************
2559 *
2560 * EDIT_WordBreakProc
2561 *
2562 * Find the beginning of words.
2563 * Note: unlike the specs for a WordBreakProc, this function only
2564 * allows to be called without linebreaks between s[0] up to
2565 * s[count - 1]. Remember it is only called
2566 * internally, so we can decide this for ourselves.
2567 *
2568 */
2569 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2570 {
2571 INT ret = 0;
2572
2573 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2574
2575 if(!s) return 0;
2576
2577 switch (action) {
2578 case WB_LEFT:
2579 if (!count)
2580 break;
2581 if (index)
2582 index--;
2583 if (s[index] == ' ') {
2584 while (index && (s[index] == ' '))
2585 index--;
2586 if (index) {
2587 while (index && (s[index] != ' '))
2588 index--;
2589 if (s[index] == ' ')
2590 index++;
2591 }
2592 } else {
2593 while (index && (s[index] != ' '))
2594 index--;
2595 if (s[index] == ' ')
2596 index++;
2597 }
2598 ret = index;
2599 break;
2600 case WB_RIGHT:
2601 if (!count)
2602 break;
2603 if (index)
2604 index--;
2605 if (s[index] == ' ')
2606 while ((index < count) && (s[index] == ' ')) index++;
2607 else {
2608 while (s[index] && (s[index] != ' ') && (index < count))
2609 index++;
2610 while ((s[index] == ' ') && (index < count)) index++;
2611 }
2612 ret = index;
2613 break;
2614 case WB_ISDELIMITER:
2615 ret = (s[index] == ' ');
2616 break;
2617 default:
2618 ERR("unknown action code, please report !\n");
2619 break;
2620 }
2621 return ret;
2622 }
2623
2624
2625 /*********************************************************************
2626 *
2627 * EM_CHARFROMPOS
2628 *
2629 * returns line number (not index) in high-order word of result.
2630 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2631 * to Richedit, not to the edit control. Original documentation is valid.
2632 * FIXME: do the specs mean to return -1 if outside client area or
2633 * if outside formatting rectangle ???
2634 *
2635 */
2636 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2637 {
2638 POINT pt;
2639 RECT rc;
2640 INT index;
2641
2642 pt.x = x;
2643 pt.y = y;
2644 GetClientRect(es->hwndSelf, &rc);
2645 if (!PtInRect(&rc, pt))
2646 return -1;
2647
2648 index = EDIT_CharFromPos(es, x, y, NULL);
2649 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2650 }
2651
2652
2653 /*********************************************************************
2654 *
2655 * EM_FMTLINES
2656 *
2657 * Enable or disable soft breaks.
2658 *
2659 * This means: insert or remove the soft linebreak character (\r\r\n).
2660 * Take care to check if the text still fits the buffer after insertion.
2661 * If not, notify with EN_ERRSPACE.
2662 *
2663 */
2664 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2665 {
2666 es->flags &= ~EF_USE_SOFTBRK;
2667 if (add_eol) {
2668 es->flags |= EF_USE_SOFTBRK;
2669 FIXME("soft break enabled, not implemented\n");
2670 }
2671 return add_eol;
2672 }
2673
2674
2675 /*********************************************************************
2676 *
2677 * EM_GETHANDLE
2678 *
2679 * Hopefully this won't fire back at us.
2680 * We always start with a fixed buffer in the local heap.
2681 * Despite of the documentation says that the local heap is used
2682 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2683 * buffer on the local heap.
2684 *
2685 */
2686 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2687 {
2688 HLOCAL hLocal;
2689
2690 if (!(es->style & ES_MULTILINE))
2691 return 0;
2692
2693 if(es->is_unicode)
2694 hLocal = es->hloc32W;
2695 else
2696 {
2697 if(!es->hloc32A)
2698 {
2699 CHAR *textA;
2700 UINT countA, alloc_size;
2701 TRACE("Allocating 32-bit ANSI alias buffer\n");
2702 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2703 alloc_size = ROUND_TO_GROW(countA);
2704 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2705 {
2706 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2707 return 0;
2708 }
2709 textA = LocalLock(es->hloc32A);
2710 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2711 LocalUnlock(es->hloc32A);
2712 }
2713 hLocal = es->hloc32A;
2714 }
2715
2716 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2717 return hLocal;
2718 }
2719
2720
2721 /*********************************************************************
2722 *
2723 * EM_GETHANDLE16
2724 *
2725 * Hopefully this won't fire back at us.
2726 * We always start with a buffer in 32 bit linear memory.
2727 * However, with this message a 16 bit application requests
2728 * a handle of 16 bit local heap memory, where it expects to find
2729 * the text.
2730 * It's a pitty that from this moment on we have to use this
2731 * local heap, because applications may rely on the handle
2732 * in the future.
2733 *
2734 * In this function we'll try to switch to local heap.
2735 */
2736 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2737 {
2738 CHAR *textA;
2739 UINT countA, alloc_size;
2740 STACK16FRAME* stack16;
2741 HANDLE16 oldDS;
2742
2743 if (!(es->style & ES_MULTILINE))
2744 return 0;
2745
2746 if (es->hloc16)
2747 return es->hloc16;
2748
2749 stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
2750 oldDS = stack16->ds;
2751 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2752
2753 if (!LocalHeapSize16()) {
2754
2755 if (!LocalInit16(stack16->ds, 0, GlobalSize16(stack16->ds))) {
2756 ERR("could not initialize local heap\n");
2757 goto done;
2758 }
2759 TRACE("local heap initialized\n");
2760 }
2761
2762 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2763 alloc_size = ROUND_TO_GROW(countA);
2764
2765 TRACE("Allocating 16-bit ANSI alias buffer\n");
2766 if (!(es->hloc16 = LocalAlloc16(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2767 ERR("could not allocate new 16 bit buffer\n");
2768 goto done;
2769 }
2770
2771 if (!(textA = MapSL(LocalLock16( es->hloc16)))) {
2772 ERR("could not lock new 16 bit buffer\n");
2773 LocalFree16(es->hloc16);
2774 es->hloc16 = 0;
2775 goto done;
2776 }
2777
2778 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2779 LocalUnlock16(es->hloc16);
2780
2781 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LocalSize16(es->hloc16));
2782
2783 done:
2784 stack16->ds = oldDS;
2785 return es->hloc16;
2786 }
2787
2788
2789 /*********************************************************************
2790 *
2791 * EM_GETLINE
2792 *
2793 */
2794 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2795 {
2796 LPWSTR src;
2797 INT line_len, dst_len;
2798 INT i;
2799
2800 if (es->style & ES_MULTILINE) {
2801 if (line >= es->line_count)
2802 return 0;
2803 } else
2804 line = 0;
2805 i = EDIT_EM_LineIndex(es, line);
2806 src = es->text + i;
2807 line_len = EDIT_EM_LineLength(es, i);
2808 dst_len = *(WORD *)dst;
2809 if(unicode)
2810 {
2811 if(dst_len <= line_len)
2812 {
2813 memcpy(dst, src, dst_len * sizeof(WCHAR));
2814 return dst_len;
2815 }
2816 else /* Append 0 if enough space */
2817 {
2818 memcpy(dst, src, line_len * sizeof(WCHAR));
2819 dst[line_len] = 0;
2820 return line_len;
2821 }
2822 }
2823 else
2824 {
2825 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2826 if(!ret && line_len) /* Insufficient buffer size */
2827 return dst_len;
2828 if(ret < dst_len) /* Append 0 if enough space */
2829 ((LPSTR)dst)[ret] = 0;
2830 return ret;
2831 }
2832 }
2833
2834
2835 /*********************************************************************
2836 *
2837 * EM_GETSEL
2838 *
2839 */
2840 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2841 {
2842 UINT s = es->selection_start;
2843 UINT e = es->selection_end;
2844
2845 ORDER_UINT(s, e);
2846 if (start)
2847 *start = s;
2848 if (end)
2849 *end = e;
2850 return MAKELONG(s, e);
2851 }
2852
2853
2854 /*********************************************************************
2855 *
2856 * EM_GETTHUMB
2857 *
2858 * FIXME: is this right ? (or should it be only VSCROLL)
2859 * (and maybe only for edit controls that really have their
2860 * own scrollbars) (and maybe only for multiline controls ?)
2861 * All in all: very poorly documented
2862 *
2863 */
2864 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2865 {
2866 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2867 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2868 }
2869
2870
2871 /*********************************************************************
2872 *
2873 * EM_LINEFROMCHAR
2874 *
2875 */
2876 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2877 {
2878 INT line;
2879 LINEDEF *line_def;
2880
2881 if (!(es->style & ES_MULTILINE))
2882 return 0;
2883 if (index > (INT)strlenW(es->text))
2884 return es->line_count - 1;
2885 if (index == -1)
2886 index = min(es->selection_start, es->selection_end);
2887
2888 line = 0;
2889 line_def = es->first_line_def;
2890 index -= line_def->length;
2891 while ((index >= 0) && line_def->next) {
2892 line++;
2893 line_def = line_def->next;
2894 index -= line_def->length;
2895 }
2896 return line;
2897 }
2898
2899
2900 /*********************************************************************
2901 *
2902 * EM_LINEINDEX
2903 *
2904 */
2905 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2906 {
2907 INT line_index;
2908 LINEDEF *line_def;
2909
2910 if (!(es->style & ES_MULTILINE))
2911 return 0;
2912 if (line >= es->line_count)
2913 return -1;
2914
2915 line_index = 0;
2916 line_def = es->first_line_def;
2917 if (line == -1) {
2918 INT index = es->selection_end - line_def->length;
2919 while ((index >= 0) && line_def->next) {
2920 line_index += line_def->length;
2921 line_def = line_def->next;
2922 index -= line_def->length;
2923 }
2924 } else {
2925 while (line > 0) {
2926 line_index += line_def->length;
2927 line_def = line_def->next;
2928 line--;
2929 }
2930 }
2931 return line_index;
2932 }
2933
2934
2935 /*********************************************************************
2936 *
2937 * EM_LINELENGTH
2938 *
2939 */
2940 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2941 {
2942 LINEDEF *line_def;
2943
2944 if (!(es->style & ES_MULTILINE))
2945 return strlenW(es->text);
2946
2947 if (index == -1) {
2948 /* get the number of remaining non-selected chars of selected lines */
2949 INT32 l; /* line number */
2950 INT32 li; /* index of first char in line */
2951 INT32 count;
2952 l = EDIT_EM_LineFromChar(es, es->selection_start);
2953 /* # chars before start of selection area */
2954 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2955 l = EDIT_EM_LineFromChar(es, es->selection_end);
2956 /* # chars after end of selection */
2957 li = EDIT_EM_LineIndex(es, l);
2958 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2959 return count;
2960 }
2961 line_def = es->first_line_def;
2962 index -= line_def->length;
2963 while ((index >= 0) && line_def->next) {
2964 line_def = line_def->next;
2965 index -= line_def->length;
2966 }
2967 return line_def->net_length;
2968 }
2969
2970
2971 /*********************************************************************
2972 *
2973 * EM_LINESCROLL
2974 *
2975 * NOTE: dx is in average character widths, dy - in lines;
2976 *
2977 */
2978 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2979 {
2980 if (!(es->style & ES_MULTILINE))
2981 return FALSE;
2982
2983 dx *= es->char_width;
2984 return EDIT_EM_LineScroll_internal(es, dx, dy);
2985 }
2986
2987 /*********************************************************************
2988 *
2989 * EDIT_EM_LineScroll_internal
2990 *
2991 * Version of EDIT_EM_LineScroll for internal use.
2992 * It doesn't refuse if ES_MULTILINE is set and assumes that
2993 * dx is in pixels, dy - in lines.
2994 *
2995 */
2996 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2997 {
2998 INT nyoff;
2999 INT x_offset_in_pixels;
3000 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
3001 es->line_height;
3002
3003 if (es->style & ES_MULTILINE)
3004 {
3005 x_offset_in_pixels = es->x_offset;
3006 }
3007 else
3008 {
3009 dy = 0;
3010 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
3011 }
3012
3013 if (-dx > x_offset_in_pixels)
3014 dx = -x_offset_in_pixels;
3015 if (dx > es->text_width - x_offset_in_pixels)
3016 dx = es->text_width - x_offset_in_pixels;
3017 nyoff = max(0, es->y_offset + dy);
3018 if (nyoff >= es->line_count - lines_per_page)
3019 nyoff = max(0, es->line_count - lines_per_page);
3020 dy = (es->y_offset - nyoff) * es->line_height;
3021 if (dx || dy) {
3022 RECT rc1;
3023 RECT rc;
3024
3025 es->y_offset = nyoff;
3026 if(es->style & ES_MULTILINE)
3027 es->x_offset += dx;
3028 else
3029 es->x_offset += dx / es->char_width;
3030
3031 GetClientRect(es->hwndSelf, &rc1);
3032 IntersectRect(&rc, &rc1, &es->format_rect);
3033 ScrollWindowEx(es->hwndSelf, -dx, dy,
3034 NULL, &rc, NULL, NULL, SW_INVALIDATE);
3035 /* force scroll info update */
3036 EDIT_UpdateScrollInfo(es);
3037 }
3038 if (dx && !(es->flags & EF_HSCROLL_TRACK))
3039 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3040 if (dy && !(es->flags & EF_VSCROLL_TRACK))
3041 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
3042 return TRUE;
3043 }
3044
3045
3046 /*********************************************************************
3047 *
3048 * EM_POSFROMCHAR
3049 *
3050 */
3051 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
3052 {
3053 INT len = strlenW(es->text);
3054 INT l;
3055 INT li;
3056 INT x;
3057 INT y = 0;
3058 INT w;
3059 INT lw = 0;
3060 INT ll = 0;
3061 HDC dc;
3062 HFONT old_font = 0;
3063 SIZE size;
3064 LINEDEF *line_def;
3065
3066 index = min(index, len);
3067 dc = GetDC(es->hwndSelf);
3068 if (es->font)
3069 old_font = SelectObject(dc, es->font);
3070 if (es->style & ES_MULTILINE) {
3071 l = EDIT_EM_LineFromChar(es, index);
3072 y = (l - es->y_offset) * es->line_height;
3073 li = EDIT_EM_LineIndex(es, l);
3074 if (after_wrap && (li == index) && l) {
3075 INT l2 = l - 1;
3076 line_def = es->first_line_def;
3077 while (l2) {
3078 line_def = line_def->next;
3079 l2--;
3080 }
3081 if (line_def->ending == END_WRAP) {
3082 l--;
3083 y -= es->line_height;
3084 li = EDIT_EM_LineIndex(es, l);
3085 }
3086 }
3087
3088 line_def = es->first_line_def;
3089 while (line_def->index != li)
3090 line_def = line_def->next;
3091
3092 ll = line_def->net_length;
3093 lw = line_def->width;
3094
3095 w = es->format_rect.right - es->format_rect.left;
3096 if (es->style & ES_RIGHT)
3097 {
3098 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
3099 es->tabs_count, es->tabs)) - es->x_offset;
3100 x = w - x;
3101 }
3102 else if (es->style & ES_CENTER)
3103 {
3104 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3105 es->tabs_count, es->tabs)) - es->x_offset;
3106 x += (w - lw) / 2;
3107 }
3108 else /* ES_LEFT */
3109 {
3110 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
3111 es->tabs_count, es->tabs)) - es->x_offset;
3112 }
3113 } else {
3114 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
3115 if (index < es->x_offset) {
3116 GetTextExtentPoint32W(dc, text + index,
3117 es->x_offset - index, &size);
3118 x = -size.cx;
3119 } else {
3120 GetTextExtentPoint32W(dc, text + es->x_offset,
3121 index - es->x_offset, &size);
3122 x = size.cx;
3123
3124 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
3125 {
3126 w = es->format_rect.right - es->format_rect.left;
3127 if (w > es->text_width)
3128 {
3129 if (es->style & ES_RIGHT)
3130 x += w - es->text_width;
3131 else if (es->style & ES_CENTER)
3132 x += (w - es->text_width) / 2;
3133 }
3134 }
3135 }
3136 y = 0;
3137 if (es->style & ES_PASSWORD)
3138 HeapFree(GetProcessHeap(), 0, text);
3139 }
3140 x += es->format_rect.left;
3141 y += es->format_rect.top;
3142 if (es->font)
3143 SelectObject(dc, old_font);
3144 ReleaseDC(es->hwndSelf, dc);
3145 return MAKELONG((INT16)x, (INT16)y);
3146 }
3147
3148
3149 /*********************************************************************
3150 *
3151 * EM_REPLACESEL
3152 *
3153 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
3154 *
3155 */
3156 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
3157 {
3158 UINT strl = strlenW(lpsz_replace);
3159 UINT tl = strlenW(es->text);
3160 UINT utl;
3161 UINT s;
3162 UINT e;
3163 UINT i;
3164 UINT size;
3165 LPWSTR p;
3166 HRGN hrgn = 0;
3167 LPWSTR buf = NULL;
3168 UINT bufl = 0;
3169
3170 TRACE("%s, can_undo %d, send_update %d\n",
3171 debugstr_w(lpsz_replace), can_undo, send_update);
3172
3173 s = es->selection_start;
3174 e = es->selection_end;
3175
3176 if ((s == e) && !strl)
3177 return;
3178
3179 ORDER_UINT(s, e);
3180
3181 size = tl - (e - s) + strl;
3182 if (!size)
3183 es->text_width = 0;
3184
3185 /* Issue the EN_MAXTEXT notification and continue with replacing text
3186 * such that buffer limit is honored. */
3187 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
3188 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3189 strl = es->buffer_limit - (tl - (e-s));
3190 }
3191
3192 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
3193 return;
3194
3195 if (e != s) {
3196 /* there is something to be deleted */
3197 TRACE("deleting stuff.\n");
3198 bufl = e - s;
3199 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
3200 if (!buf) return;
3201 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
3202 buf[bufl] = 0; /* ensure 0 termination */
3203 /* now delete */
3204 strcpyW(es->text + s, es->text + e);
3205 }
3206 if (strl) {
3207 /* there is an insertion */
3208 tl = strlenW(es->text);
3209 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));
3210 for (p = es->text + tl ; p >= es->text + s ; p--)
3211 p[strl] = p[0];
3212 for (i = 0 , p = es->text + s ; i < strl ; i++)
3213 p[i] = lpsz_replace[i];
3214 if(es->style & ES_UPPERCASE)
3215 CharUpperBuffW(p, strl);
3216 else if(es->style & ES_LOWERCASE)
3217 CharLowerBuffW(p, strl);
3218 }
3219 if (es->style & ES_MULTILINE)
3220 {
3221 INT st = min(es->selection_start, es->selection_end);
3222 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3223
3224 hrgn = CreateRectRgn(0, 0, 0, 0);
3225 EDIT_BuildLineDefs_ML(es, st, st + strl,
3226 strl - abs(es->selection_end - es->selection_start), hrgn);
3227 /* if text is too long undo all changes */
3228 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
3229 if (strl)
3230 strcpyW(es->text + e, es->text + e + strl);
3231 if (e != s)
3232 for (i = 0 , p = es->text ; i < e - s ; i++)
3233 p[i + s] = buf[i];
3234 EDIT_BuildLineDefs_ML(es, s, e,
3235 abs(es->selection_end - es->selection_start) - strl, hrgn);
3236 strl = 0;
3237 e = s;
3238 hrgn = CreateRectRgn(0, 0, 0, 0);
3239 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3240 }
3241 }
3242 else {
3243 INT fw = es->format_rect.right - es->format_rect.left;
3244 EDIT_CalcLineWidth_SL(es);
3245 /* remove chars that don't fit */
3246 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
3247 while ((es->text_width > fw) && s + strl >= s) {
3248 strcpyW(es->text + s + strl - 1, es->text + s + strl);
3249 strl--;
3250 EDIT_CalcLineWidth_SL(es);
3251 }
3252 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
3253 }
3254 }
3255
3256 if (e != s) {
3257 if (can_undo) {
3258 utl = strlenW(es->undo_text);
3259 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3260 /* undo-buffer is extended to the right */
3261 EDIT_MakeUndoFit(es, utl + e - s);
3262 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
3263 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3264 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3265 /* undo-buffer is extended to the left */
3266 EDIT_MakeUndoFit(es, utl + e - s);
3267 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3268 p[e - s] = p[0];
3269 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3270 p[i] = buf[i];
3271 es->undo_position = s;
3272 } else {
3273 /* new undo-buffer */
3274 EDIT_MakeUndoFit(es, e - s);
3275 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
3276 es->undo_text[e - s] = 0; /* ensure 0 termination */
3277 es->undo_position = s;
3278 }
3279 /* any deletion makes the old insertion-undo invalid */
3280 es->undo_insert_count = 0;
3281 } else
3282 EDIT_EM_EmptyUndoBuffer(es);
3283 }
3284 if (strl) {
3285 if (can_undo) {
3286 if ((s == es->undo_position) ||
3287 ((es->undo_insert_count) &&
3288 (s == es->undo_position + es->undo_insert_count)))
3289 /*
3290 * insertion is new and at delete position or
3291 * an extension to either left or right
3292 */
3293 es->undo_insert_count += strl;
3294 else {
3295 /* new insertion undo */
3296 es->undo_position = s;
3297 es->undo_insert_count = strl;
3298 /* new insertion makes old delete-buffer invalid */
3299 *es->undo_text = '\0';
3300 }
3301 } else
3302 EDIT_EM_EmptyUndoBuffer(es);
3303 }
3304
3305 if (bufl)
3306 HeapFree(GetProcessHeap(), 0, buf);
3307
3308 s += strl;
3309
3310 /* If text has been deleted and we're right or center aligned then scroll rightward */
3311 if (es->style & (ES_RIGHT | ES_CENTER))
3312 {
3313 INT delta = strl - abs(es->selection_end - es->selection_start);
3314
3315 if (delta < 0 && es->x_offset)
3316 {
3317 if (abs(delta) > es->x_offset)
3318 es->x_offset = 0;
3319 else
3320 es->x_offset += delta;
3321 }
3322 }
3323
3324 EDIT_EM_SetSel(es, s, s, FALSE);
3325 es->flags |= EF_MODIFIED;
3326 if (send_update) es->flags |= EF_UPDATE;
3327 if (hrgn)
3328 {
3329 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3330 DeleteObject(hrgn);
3331 }
3332 else
3333 EDIT_UpdateText(es, NULL, TRUE);
3334
3335 EDIT_EM_ScrollCaret(es);
3336
3337 /* force scroll info update */
3338 EDIT_UpdateScrollInfo(es);
3339
3340
3341 if(send_update || (es->flags & EF_UPDATE))
3342 {
3343 es->flags &= ~EF_UPDATE;
3344 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3345 }
3346 }
3347
3348
3349 /*********************************************************************
3350 *
3351 * EM_SCROLL
3352 *
3353 */
3354 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3355 {
3356 INT dy;
3357
3358 if (!(es->style & ES_MULTILINE))
3359 return (LRESULT)FALSE;
3360
3361 dy = 0;
3362
3363 switch (action) {
3364 case SB_LINEUP:
3365 if (es->y_offset)
3366 dy = -1;
3367 break;
3368 case SB_LINEDOWN:
3369 if (es->y_offset < es->line_count - 1)
3370 dy = 1;
3371 break;
3372 case SB_PAGEUP:
3373 if (es->y_offset)
3374 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3375 break;
3376 case SB_PAGEDOWN:
3377 if (es->y_offset < es->line_count - 1)
3378 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3379 break;
3380 default:
3381 return (LRESULT)FALSE;
3382 }
3383 if (dy) {
3384 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3385 /* check if we are going to move too far */
3386 if(es->y_offset + dy > es->line_count - vlc)
3387 dy = es->line_count - vlc - es->y_offset;
3388
3389 /* Notification is done in EDIT_EM_LineScroll */
3390 if(dy)
3391 EDIT_EM_LineScroll(es, 0, dy);
3392 }
3393 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3394 }
3395
3396
3397 /*********************************************************************
3398 *
3399 * EM_SCROLLCARET
3400 *
3401 */
3402 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3403 {
3404 if (es->style & ES_MULTILINE) {
3405 INT l;
3406 INT li;
3407 INT vlc;
3408 INT ww;
3409 INT cw = es->char_width;
3410 INT x;
3411 INT dy = 0;
3412 INT dx = 0;
3413
3414 l = EDIT_EM_LineFromChar(es, es->selection_end);
3415 li = EDIT_EM_LineIndex(es, l);
3416 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3417 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3418 if (l >= es->y_offset + vlc)
3419 dy = l - vlc + 1 - es->y_offset;
3420 if (l < es->y_offset)
3421 dy = l - es->y_offset;
3422 ww = es->format_rect.right - es->format_rect.left;
3423 if (x < es->format_rect.left)
3424 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3425 if (x > es->format_rect.right)
3426 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3427 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3428 {
3429 /* check if we are going to move too far */
3430 if(es->x_offset + dx + ww > es->text_width)
3431 dx = es->text_width - ww - es->x_offset;
3432 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
3433 EDIT_EM_LineScroll_internal(es, dx, dy);
3434 }
3435 } else {
3436 INT x;
3437 INT goal;
3438 INT format_width;
3439
3440 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3441 format_width = es->format_rect.right - es->format_rect.left;
3442 if (x < es->format_rect.left) {
3443 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3444 do {
3445 es->x_offset--;
3446 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3447 } while ((x < goal) && es->x_offset);
3448 /* FIXME: use ScrollWindow() somehow to improve performance */
3449 EDIT_UpdateText(es, NULL, TRUE);
3450 } else if (x > es->format_rect.right) {
3451 INT x_last;
3452 INT len = strlenW(es->text);
3453 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3454 do {
3455 es->x_offset++;
3456 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3457 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3458 } while ((x > goal) && (x_last > es->format_rect.right));
3459 /* FIXME: use ScrollWindow() somehow to improve performance */
3460 EDIT_UpdateText(es, NULL, TRUE);
3461 }
3462 }
3463
3464 if(es->flags & EF_FOCUSED)
3465 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3466 }
3467
3468
3469 /*********************************************************************
3470 *
3471 * EM_SETHANDLE
3472 *
3473 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3474 *
3475 */
3476 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3477 {
3478 if (!(es->style & ES_MULTILINE))
3479 return;
3480
3481 if (!hloc) {
3482 WARN("called with NULL handle\n");
3483 return;
3484 }
3485
3486 EDIT_UnlockBuffer(es, TRUE);
3487
3488 if(es->hloc16)
3489 {
3490 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
3491 HANDLE16 oldDS = stack16->ds;
3492
3493 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3494 LocalFree16(es->hloc16);
3495 stack16->ds = oldDS;
3496 es->hloc16 = 0;
3497 }
3498
3499 if(es->is_unicode)
3500 {
3501 if(es->hloc32A)
3502 {
3503 LocalFree(es->hloc32A);
3504 es->hloc32A = NULL;
3505 }
3506 es->hloc32W = hloc;
3507 }
3508 else
3509 {
3510 INT countW, countA;
3511 HLOCAL hloc32W_new;
3512 WCHAR *textW;
3513 CHAR *textA;
3514
3515 countA = LocalSize(hloc);
3516 textA = LocalLock(hloc);
3517 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3518 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3519 {
3520 ERR("Could not allocate new unicode buffer\n");
3521 return;
3522 }
3523 textW = LocalLock(hloc32W_new);
3524 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3525 LocalUnlock(hloc32W_new);
3526 LocalUnlock(hloc);
3527
3528 if(es->hloc32W)
3529 LocalFree(es->hloc32W);
3530
3531 es->hloc32W = hloc32W_new;
3532 es->hloc32A = hloc;
3533 }
3534
3535 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3536
3537 EDIT_LockBuffer(es);
3538
3539 es->x_offset = es->y_offset = 0;
3540 es->selection_start = es->selection_end = 0;
3541 EDIT_EM_EmptyUndoBuffer(es);
3542 es->flags &= ~EF_MODIFIED;
3543 es->flags &= ~EF_UPDATE;
3544 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3545 EDIT_UpdateText(es, NULL, TRUE);
3546 EDIT_EM_ScrollCaret(es);
3547 /* force scroll info update */
3548 EDIT_UpdateScrollInfo(es);
3549 }
3550
3551
3552 /*********************************************************************
3553 *
3554 * EM_SETHANDLE16
3555 *
3556 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3557 *
3558 */
3559 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3560 {
3561 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
3562 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3563 HANDLE16 oldDS = stack16->ds;
3564 INT countW, countA;
3565 HLOCAL hloc32W_new;
3566 WCHAR *textW;
3567 CHAR *textA;
3568
3569 if (!(es->style & ES_MULTILINE))
3570 return;
3571
3572 if (!hloc) {
3573 WARN("called with NULL handle\n");
3574 return;
3575 }
3576
3577 EDIT_UnlockBuffer(es, TRUE);
3578
3579 if(es->hloc32A)
3580 {
3581 LocalFree(es->hloc32A);
3582 es->hloc32A = NULL;
3583 }
3584
3585 stack16->ds = hInstance;
3586 countA = LocalSize16(hloc);
3587 textA = MapSL(LocalLock16(hloc));
3588 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3589 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3590 {
3591 ERR("Could not allocate new unicode buffer\n");
3592 return;
3593 }
3594 textW = LocalLock(hloc32W_new);
3595 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3596 LocalUnlock(hloc32W_new);
3597 LocalUnlock16(hloc);
3598 stack16->ds = oldDS;
3599
3600 if(es->hloc32W)
3601 LocalFree(es->hloc32W);
3602
3603 es->hloc32W = hloc32W_new;
3604 es->hloc16 = hloc;
3605
3606 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3607
3608 EDIT_LockBuffer(es);
3609
3610 es->x_offset = es->y_offset = 0;
3611 es->selection_start = es->selection_end = 0;
3612 EDIT_EM_EmptyUndoBuffer(es);
3613 es->flags &= ~EF_MODIFIED;
3614 es->flags &= ~EF_UPDATE;
3615 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3616 EDIT_UpdateText(es, NULL, TRUE);
3617 EDIT_EM_ScrollCaret(es);
3618 /* force scroll info update */
3619 EDIT_UpdateScrollInfo(es);
3620 }
3621
3622
3623 /*********************************************************************
3624 *
3625 * EM_SETLIMITTEXT
3626 *
3627 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3628 * However, the windows version is not complied to yet in all of edit.c
3629 *
3630 * Additionally as the wrapper for RichEdit controls we need larger buffers
3631 * at present -1 will represent nolimit
3632 */
3633 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3634 {
3635 if (limit == 0xFFFFFFFF)
3636 es->buffer_limit = -1;
3637 else if (es->style & ES_MULTILINE) {
3638 if (limit)
3639 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3640 else
3641 es->buffer_limit = BUFLIMIT_MULTI;
3642 } else {
3643 if (limit)
3644 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3645 else
3646 es->buffer_limit = BUFLIMIT_SINGLE;
3647 }
3648 }
3649
3650
3651 /*********************************************************************
3652 *
3653 * EM_SETMARGINS
3654 *
3655 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3656 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3657 * margin according to the textmetrics of the current font.
3658 *
3659 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3660 * of the char's width as the margin, but this is not how Windows handles this.
3661 * For all other fonts Windows sets the margins to zero.
3662 *
3663 * FIXME - When EC_USEFONTINFO is used the margins only change if the
3664 * edit control is equal to or larger than a certain size.
3665 * Interestingly if one subtracts both the left and right margins from
3666 * this size one always seems to get an even number. The extents of
3667 * the (four character) string "'**'" match this quite closely, so
3668 * we'll use this until we come up with a better idea.
3669 */
3670 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
3671 {
3672 WCHAR magic_string[] = {'\'','*','*','\'', 0};
3673 SIZE sz;
3674
3675 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
3676 return sz.cx + left + right;
3677 }
3678
3679 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3680 WORD left, WORD right, BOOL repaint)
3681 {
3682 TEXTMETRICW tm;
3683 INT default_left_margin = 0; /* in pixels */
3684 INT default_right_margin = 0; /* in pixels */
3685
3686 /* Set the default margins depending on the font */
3687 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3688 HDC dc = GetDC(es->hwndSelf);
3689 HFONT old_font = SelectObject(dc, es->font);
3690 GetTextMetricsW(dc, &tm);
3691 /* The default margins are only non zero for TrueType or Vector fonts */
3692 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3693 int min_size;
3694 RECT rc;
3695 /* This must be calculated more exactly! But how? */
3696 default_left_margin = tm.tmAveCharWidth / 2;
3697 default_right_margin = tm.tmAveCharWidth / 2;
3698 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
3699 GetClientRect(es->hwndSelf, &rc);
3700 if(rc.right - rc.left < min_size) {
3701 default_left_margin = es->left_margin;
3702 default_right_margin = es->right_margin;
3703 }
3704 }
3705 SelectObject(dc, old_font);
3706 ReleaseDC(es->hwndSelf, dc);
3707 }
3708
3709 if (action & EC_LEFTMARGIN) {
3710 es->format_rect.left -= es->left_margin;
3711 if (left != EC_USEFONTINFO)
3712 es->left_margin = left;
3713 else
3714 es->left_margin = default_left_margin;
3715 es->format_rect.left += es->left_margin;
3716 }
3717
3718 if (action & EC_RIGHTMARGIN) {
3719 es->format_rect.right += es->right_margin;
3720 if (right != EC_USEFONTINFO)
3721 es->right_margin = right;
3722 else
3723 es->right_margin = default_right_margin;
3724 es->format_rect.right -= es->right_margin;
3725 }
3726
3727 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
3728 EDIT_AdjustFormatRect(es);
3729 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
3730 }
3731
3732 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3733 }
3734
3735
3736 /*********************************************************************
3737 *
3738 * EM_SETPASSWORDCHAR
3739 *
3740 */
3741 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3742 {
3743 LONG style;
3744
3745 if (es->style & ES_MULTILINE)
3746 return;
3747
3748 if (es->password_char == c)
3749 return;
3750
3751 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3752 es->password_char = c;
3753 if (c) {
3754 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3755 es->style |= ES_PASSWORD;
3756 } else {
3757 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3758 es->style &= ~ES_PASSWORD;
3759 }
3760 EDIT_UpdateText(es, NULL, TRUE);
3761 }
3762
3763
3764 /*********************************************************************
3765 *
3766 * EDIT_EM_SetSel
3767 *
3768 * note: unlike the specs say: the order of start and end
3769 * _is_ preserved in Windows. (i.e. start can be > end)
3770 * In other words: this handler is OK
3771 *
3772 */
3773 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3774 {
3775 UINT old_start = es->selection_start;
3776 UINT old_end = es->selection_end;
3777 UINT len = strlenW(es->text);
3778
3779 if (start == (UINT)-1) {
3780 start = es->selection_end;
3781 end = es->selection_end;
3782 } else {
3783 start = min(start, len);
3784 end = min(end, len);
3785 }
3786 es->selection_start = start;
3787 es->selection_end = end;
3788 if (after_wrap)
3789 es->flags |= EF_AFTER_WRAP;
3790 else
3791 es->flags &= ~EF_AFTER_WRAP;
3792 /* Compute the necessary invalidation region. */
3793 /* Note that we don't need to invalidate regions which have
3794 * "never" been selected, or those which are "still" selected.
3795 * In fact, every time we hit a selection boundary, we can
3796 * *toggle* whether we need to invalidate. Thus we can optimize by
3797 * *sorting* the interval endpoints. Let's assume that we sort them
3798 * in this order:
3799 * start <= end <= old_start <= old_end
3800 * Knuth 5.3.1 (p 183) asssures us that this can be done optimally
3801 * in 5 comparisons; ie it's impossible to do better than the
3802 * following: */
3803 ORDER_UINT(end, old_end);
3804 ORDER_UINT(start, old_start);
3805 ORDER_UINT(old_start, old_end);
3806 ORDER_UINT(start, end);
3807 /* Note that at this point 'end' and 'old_start' are not in order, but
3808 * start is definitely the min. and old_end is definitely the max. */
3809 if (end != old_start)
3810 {
3811 /*
3812 * One can also do
3813 * ORDER_UINT32(end, old_start);
3814 * EDIT_InvalidateText(es, start, end);
3815 * EDIT_InvalidateText(es, old_start, old_end);
3816 * in place of the following if statement.
3817 * (That would complete the optimal five-comparison four-element sort.)
3818 */
3819 if (old_start > end )
3820 {
3821 EDIT_InvalidateText(es, start, end);
3822 EDIT_InvalidateText(es, old_start, old_end);
3823 }
3824 else
3825 {
3826 EDIT_InvalidateText(es, start, old_start);
3827 EDIT_InvalidateText(es, end, old_end);
3828 }
3829 }
3830 else EDIT_InvalidateText(es, start, old_end);
3831 }
3832
3833
3834 /*********************************************************************
3835 *
3836 * EM_SETTABSTOPS
3837 *
3838 */
3839 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3840 {
3841 if (!(es->style & ES_MULTILINE))
3842 return FALSE;
3843 HeapFree(GetProcessHeap(), 0, es->tabs);
3844 es->tabs_count = count;
3845 if (!count)
3846 es->tabs = NULL;
3847 else {
3848 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3849 memcpy(es->tabs, tabs, count * sizeof(INT));
3850 }
3851 return TRUE;
3852 }
3853
3854
3855 /*********************************************************************
3856 *
3857 * EM_SETTABSTOPS16
3858 *
3859 */
3860 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3861 {
3862 if (!(es->style & ES_MULTILINE))
3863 return FALSE;
3864 HeapFree(GetProcessHeap(), 0, es->tabs);
3865 es->tabs_count = count;
3866 if (!count)
3867 es->tabs = NULL;
3868 else {
3869 INT i;
3870 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3871 for (i = 0 ; i < count ; i++)
3872 es->tabs[i] = *tabs++;
3873 }
3874 return TRUE;
3875 }
3876
3877
3878 /*********************************************************************
3879 *
3880 * EM_SETWORDBREAKPROC
3881 *
3882 */
3883 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
3884 {
3885 if (es->word_break_proc == wbp)
3886 return;
3887
3888 es->word_break_proc = wbp;
3889 es->word_break_proc16 = NULL;
3890
3891 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3892 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3893 EDIT_UpdateText(es, NULL, TRUE);
3894 }
3895 }
3896
3897
3898 /*********************************************************************
3899 *
3900 * EM_SETWORDBREAKPROC16
3901 *
3902 */
3903 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3904 {
3905 if (es->word_break_proc16 == wbp)
3906 return;
3907
3908 es->word_break_proc = NULL;
3909 es->word_break_proc16 = wbp;
3910 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3911 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3912 EDIT_UpdateText(es, NULL, TRUE);
3913 }
3914 }
3915
3916
3917 /*********************************************************************
3918 *
3919 * EM_UNDO / WM_UNDO
3920 *
3921 */
3922 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3923 {
3924 INT ulength;
3925 LPWSTR utext;
3926
3927 /* As per MSDN spec, for a single-line edit control,
3928 the return value is always TRUE */
3929 if( es->style & ES_READONLY )
3930 return !(es->style & ES_MULTILINE);
3931
3932 ulength = strlenW(es->undo_text);
3933
3934 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3935
3936 strcpyW(utext, es->undo_text);
3937
3938 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3939 es->undo_insert_count, debugstr_w(utext));
3940
3941 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3942 EDIT_EM_EmptyUndoBuffer(es);
3943 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3944 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3945 /* send the notification after the selection start and end are set */
3946 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3947 EDIT_EM_ScrollCaret(es);
3948 HeapFree(GetProcessHeap(), 0, utext);
3949
3950 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3951 es->undo_insert_count, debugstr_w(es->undo_text));
3952 return TRUE;
3953 }
3954
3955
3956 /*********************************************************************
3957 *
3958 * WM_CHAR
3959 *
3960 */
3961 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3962 {
3963 BOOL control;
3964
3965 control = GetKeyState(VK_CONTROL) & 0x8000;
3966
3967 switch (c) {
3968 case '\r':
3969 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3970 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3971 break;
3972 case '\n':
3973 if (es->style & ES_MULTILINE) {
3974 if (es->style & ES_READONLY) {
3975 EDIT_MoveHome(es, FALSE);
3976 EDIT_MoveDown_ML(es, FALSE);
3977 } else {
3978 static const WCHAR cr_lfW[] = {'\r','\n',0};
3979 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3980 }
3981 }
3982 break;
3983 case '\t':
3984 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3985 {
3986 static const WCHAR tabW[] = {'\t',0};
3987 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3988 }
3989 break;
3990 case VK_BACK:
3991 if (!(es->style & ES_READONLY) && !control) {
3992 if (es->selection_start != es->selection_end)
3993 EDIT_WM_Clear(es);
3994 else {
3995 /* delete character left of caret */
3996 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3997 EDIT_MoveBackward(es, TRUE);
3998 EDIT_WM_Clear(es);
3999 }
4000 }
4001 break;
4002 case 0x03: /* ^C */
4003 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
4004 break;
4005 case 0x16: /* ^V */
4006 if (!(es->style & ES_READONLY))
4007 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4008 break;
4009 case 0x18: /* ^X */
4010 if (!(es->style & ES_READONLY))
4011 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
4012 break;
4013
4014 default:
4015 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
4016 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
4017 break;
4018
4019 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
4020 WCHAR str[2];
4021 str[0] = c;
4022 str[1] = '\0';
4023 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
4024 }
4025 break;
4026 }
4027 }
4028
4029
4030 /*********************************************************************
4031 *
4032 * WM_COMMAND
4033 *
4034 */
4035 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
4036 {
4037 if (code || control)
4038 return;
4039
4040 switch (id) {
4041 case EM_UNDO:
4042 EDIT_EM_Undo(es);
4043 break;
4044 case WM_CUT:
4045 EDIT_WM_Cut(es);
4046 break;
4047 case WM_COPY:
4048 EDIT_WM_Copy(es);
4049 break;
4050 case WM_PASTE:
4051 EDIT_WM_Paste(es);
4052 break;
4053 case WM_CLEAR:
4054 EDIT_WM_Clear(es);
4055 break;
4056 case EM_SETSEL:
4057 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4058 EDIT_EM_ScrollCaret(es);
4059 break;
4060 default:
4061 ERR("unknown menu item, please report\n");
4062 break;
4063 }
4064 }
4065
4066
4067 /*********************************************************************
4068 *
4069 * WM_CONTEXTMENU
4070 *
4071 * Note: the resource files resource/sysres_??.rc cannot define a
4072 * single popup menu. Hence we use a (dummy) menubar
4073 * containing the single popup menu as its first item.
4074 *
4075 * FIXME: the message identifiers have been chosen arbitrarily,
4076 * hence we use MF_BYPOSITION.
4077 * We might as well use the "real" values (anybody knows ?)
4078 * The menu definition is in resources/sysres_??.rc.
4079 * Once these are OK, we better use MF_BYCOMMAND here
4080 * (as we do in EDIT_WM_Command()).
4081 *
4082 */
4083 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
4084 {
4085 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
4086 HMENU popup = GetSubMenu(menu, 0);
4087 UINT start = es->selection_start;
4088 UINT end = es->selection_end;
4089
4090 ORDER_UINT(start, end);
4091
4092 /* undo */
4093 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4094 /* cut */
4095 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4096 /* copy */
4097 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
4098 /* paste */
4099 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4100 /* delete */
4101 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
4102 /* select all */
4103 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
4104
4105 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
4106 DestroyMenu(menu);
4107 }
4108
4109
4110 /*********************************************************************
4111 *
4112 * WM_COPY
4113 *
4114 */
4115 static void EDIT_WM_Copy(EDITSTATE *es)
4116 {
4117 INT s = min(es->selection_start, es->selection_end);
4118 INT e = max(es->selection_start, es->selection_end);
4119 HGLOBAL hdst;
4120 LPWSTR dst;
4121 DWORD len;
4122
4123 if (e == s) return;
4124
4125 len = e - s;
4126 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
4127 dst = GlobalLock(hdst);
4128 memcpy(dst, es->text + s, len * sizeof(WCHAR));
4129 dst[len] = 0; /* ensure 0 termination */
4130 TRACE("%s\n", debugstr_w(dst));
4131 GlobalUnlock(hdst);
4132 OpenClipboard(es->hwndSelf);
4133 EmptyClipboard();
4134 SetClipboardData(CF_UNICODETEXT, hdst);
4135 CloseClipboard();
4136 }
4137
4138
4139 /*********************************************************************
4140 *
4141 * WM_CREATE
4142 *
4143 */
4144 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4145 {
4146 RECT clientRect;
4147
4148 TRACE("%s\n", debugstr_w(name));
4149 /*
4150 * To initialize some final structure members, we call some helper
4151 * functions. However, since the EDITSTATE is not consistent (i.e.
4152 * not fully initialized), we should be very careful which
4153 * functions can be called, and in what order.
4154 */
4155 EDIT_WM_SetFont(es, 0, FALSE);
4156 EDIT_EM_EmptyUndoBuffer(es);
4157
4158 /* We need to calculate the format rect
4159 (applications may send EM_SETMARGINS before the control gets visible) */
4160 GetClientRect(es->hwndSelf, &clientRect);
4161 EDIT_SetRectNP(es, &clientRect);
4162
4163 if (name && *name) {
4164 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4165 /* if we insert text to the editline, the text scrolls out
4166 * of the window, as the caret is placed after the insert
4167 * pos normally; thus we reset es->selection... to 0 and
4168 * update caret
4169 */
4170 es->selection_start = es->selection_end = 0;
4171 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4172 * Messages are only to be sent when the USER does something to
4173 * change the contents. So I am removing this EN_CHANGE
4174 *
4175 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4176 */
4177 EDIT_EM_ScrollCaret(es);
4178 }
4179 /* force scroll info update */
4180 EDIT_UpdateScrollInfo(es);
4181 /* The rule seems to return 1 here for success */
4182 /* Power Builder masked edit controls will crash */
4183 /* if not. */
4184 /* FIXME: is that in all cases so ? */
4185 return 1;
4186 }
4187
4188
4189 /*********************************************************************
4190 *
4191 * WM_DESTROY
4192 *
4193 */
4194 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
4195 {
4196 LINEDEF *pc, *pp;
4197
4198 if (es->hloc32W) {
4199 while (LocalUnlock(es->hloc32W)) ;
4200 LocalFree(es->hloc32W);
4201 }
4202 if (es->hloc32A) {
4203 while (LocalUnlock(es->hloc32A)) ;
4204 LocalFree(es->hloc32A);
4205 }
4206 if (es->hloc16) {
4207 STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
4208 HANDLE16 oldDS = stack16->ds;
4209
4210 stack16->ds = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
4211 while (LocalUnlock16(es->hloc16)) ;
4212 LocalFree16(es->hloc16);
4213 stack16->ds = oldDS;
4214 }
4215
4216 pc = es->first_line_def;
4217 while (pc)
4218 {
4219 pp = pc->next;
4220 HeapFree(GetProcessHeap(), 0, pc);
4221 pc = pp;
4222 }
4223
4224 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4225 HeapFree(GetProcessHeap(), 0, es);
4226
4227 return 0;
4228 }
4229
4230
4231 /*********************************************************************
4232 *
4233 * WM_ERASEBKGND
4234 *
4235 */
4236 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
4237 {
4238 /* we do the proper erase in EDIT_WM_Paint */
4239 return 1;
4240 }
4241
4242
4243 /*********************************************************************
4244 *
4245 * WM_GETTEXT
4246 *
4247 */
4248 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
4249 {
4250 if(!count) return 0;
4251
4252 if(unicode)
4253 {
4254 lstrcpynW(dst, es->text, count);
4255 return strlenW(dst);
4256 }
4257 else
4258 {
4259 LPSTR textA = (LPSTR)dst;
4260 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
4261 textA[count - 1] = 0; /* ensure 0 termination */
4262 return strlen(textA);
4263 }
4264 }
4265
4266 /*********************************************************************
4267 *
4268 * WM_HSCROLL
4269 *
4270 */
4271 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
4272 {
4273 INT dx;
4274 INT fw;
4275
4276 if (!(es->style & ES_MULTILINE))
4277 return 0;
4278
4279 if (!(es->style & ES_AUTOHSCROLL))
4280 return 0;
4281
4282 dx = 0;
4283 fw = es->format_rect.right - es->format_rect.left;
4284 switch (action) {
4285 case SB_LINELEFT:
4286 TRACE("SB_LINELEFT\n");
4287 if (es->x_offset)
4288 dx = -es->char_width;
4289 break;
4290 case SB_LINERIGHT:
4291 TRACE("SB_LINERIGHT\n");
4292 if (es->x_offset < es->text_width)
4293 dx = es->char_width;
4294 break;
4295 case SB_PAGELEFT:
4296 TRACE("SB_PAGELEFT\n");
4297 if (es->x_offset)
4298 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4299 break;
4300 case SB_PAGERIGHT:
4301 TRACE("SB_PAGERIGHT\n");
4302 if (es->x_offset < es->text_width)
4303 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
4304 break;
4305 case SB_LEFT:
4306 TRACE("SB_LEFT\n");
4307 if (es->x_offset)
4308 dx = -es->x_offset;
4309 break;
4310 case SB_RIGHT:
4311 TRACE("SB_RIGHT\n");
4312 if (es->x_offset < es->text_width)
4313 dx = es->text_width - es->x_offset;
4314 break;
4315 case SB_THUMBTRACK:
4316 TRACE("SB_THUMBTRACK %d\n", pos);
4317 es->flags |= EF_HSCROLL_TRACK;
4318 if(es->style & WS_HSCROLL)
4319 dx = pos - es->x_offset;
4320 else
4321 {
4322 INT fw, new_x;
4323 /* Sanity check */
4324 if(pos < 0 || pos > 100) return 0;
4325 /* Assume default scroll range 0-100 */
4326 fw = es->format_rect.right - es->format_rect.left;
4327 new_x = pos * (es->text_width - fw) / 100;
4328 dx = es->text_width ? (new_x - es->x_offset) : 0;
4329 }
4330 break;
4331 case SB_THUMBPOSITION:
4332 TRACE("SB_THUMBPOSITION %d\n", pos);
4333 es->flags &= ~EF_HSCROLL_TRACK;
4334 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4335 dx = pos - es->x_offset;
4336 else
4337 {
4338 INT fw, new_x;
4339 /* Sanity check */
4340 if(pos < 0 || pos > 100) return 0;
4341 /* Assume default scroll range 0-100 */
4342 fw = es->format_rect.right - es->format_rect.left;
4343 new_x = pos * (es->text_width - fw) / 100;
4344 dx = es->text_width ? (new_x - es->x_offset) : 0;
4345 }
4346 if (!dx) {
4347 /* force scroll info update */
4348 EDIT_UpdateScrollInfo(es);
4349 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
4350 }
4351 break;
4352 case SB_ENDSCROLL:
4353 TRACE("SB_ENDSCROLL\n");
4354 break;
4355 /*
4356 * FIXME : the next two are undocumented !
4357 * Are we doing the right thing ?
4358 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4359 * although it's also a regular control message.
4360 */
4361 case EM_GETTHUMB: /* this one is used by NT notepad */
4362 case EM_GETTHUMB16:
4363 {
4364 LRESULT ret;
4365 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
4366 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
4367 else
4368 {
4369 /* Assume default scroll range 0-100 */
4370 INT fw = es->format_rect.right - es->format_rect.left;
4371 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4372 }
4373 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4374 return ret;
4375 }
4376 case EM_LINESCROLL16:
4377 TRACE("EM_LINESCROLL16\n");
4378 dx = pos;
4379 break;
4380
4381 default:
4382 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4383 action, action);
4384 return 0;
4385 }
4386 if (dx)
4387 {
4388 INT fw = es->format_rect.right - es->format_rect.left;
4389 /* check if we are going to move too far */
4390 if(es->x_offset + dx + fw > es->text_width)
4391 dx = es->text_width - fw - es->x_offset;
4392 if(dx)
4393 EDIT_EM_LineScroll_internal(es, dx, 0);
4394 }
4395 return 0;
4396 }
4397
4398
4399 /*********************************************************************
4400 *
4401 * EDIT_CheckCombo
4402 *
4403 */
4404 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4405 {
4406 HWND hLBox = es->hwndListBox;
4407 HWND hCombo;
4408 BOOL bDropped;
4409 int nEUI;
4410
4411 if (!hLBox)
4412 return FALSE;
4413
4414 hCombo = GetParent(es->hwndSelf);
4415 bDropped = TRUE;
4416 nEUI = 0;
4417
4418 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4419
4420 if (key == VK_UP || key == VK_DOWN)
4421 {
4422 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4423 nEUI = 1;
4424
4425 if (msg == WM_KEYDOWN || nEUI)
4426 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4427 }
4428
4429 switch (msg)
4430 {
4431 case WM_KEYDOWN:
4432 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4433 {
4434 /* make sure ComboLBox pops up */
4435 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4436 key = VK_F4;
4437 nEUI = 2;
4438 }
4439
4440 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4441 break;
4442
4443 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4444 if (nEUI)
4445 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4446 else
4447 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4448 break;
4449 }
4450
4451 if(nEUI == 2)
4452 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4453
4454 return TRUE;
4455 }
4456
4457
4458 /*********************************************************************
4459 *
4460 * WM_KEYDOWN
4461 *
4462 * Handling of special keys that don't produce a WM_CHAR
4463 * (i.e. non-printable keys) & Backspace & Delete
4464 *
4465 */
4466 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4467 {
4468 BOOL shift;
4469 BOOL control;
4470
4471 if (GetKeyState(VK_MENU) & 0x8000)
4472 return 0;
4473
4474 shift = GetKeyState(VK_SHIFT) & 0x8000;
4475 control = GetKeyState(VK_CONTROL) & 0x8000;
4476
4477 switch (key) {
4478 case VK_F4:
4479 case VK_UP:
4480 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4481 break;
4482
4483 /* fall through */
4484 case VK_LEFT:
4485 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4486 EDIT_MoveUp_ML(es, shift);
4487 else
4488 if (control)
4489 EDIT_MoveWordBackward(es, shift);
4490 else
4491 EDIT_MoveBackward(es, shift);
4492 break;
4493 case VK_DOWN:
4494 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4495 break;
4496 /* fall through */
4497 case VK_RIGHT:
4498 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4499 EDIT_MoveDown_ML(es, shift);
4500 else if (control)
4501 EDIT_MoveWordForward(es, shift);
4502 else
4503 EDIT_MoveForward(es, shift);
4504 break;
4505 case VK_HOME:
4506 EDIT_MoveHome(es, shift);
4507 break;
4508 case VK_END:
4509 EDIT_MoveEnd(es, shift);
4510 break;
4511 case VK_PRIOR:
4512 if (es->style & ES_MULTILINE)
4513 EDIT_MovePageUp_ML(es, shift);
4514 else
4515 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4516 break;
4517 case VK_NEXT:
4518 if (es->style & ES_MULTILINE)
4519 EDIT_MovePageDown_ML(es, shift);
4520 else
4521 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4522 break;
4523 case VK_DELETE:
4524 if (!(es->style & ES_READONLY) && !(shift && control)) {
4525 if (es->selection_start != es->selection_end) {
4526 if (shift)
4527 EDIT_WM_Cut(es);
4528 else
4529 EDIT_WM_Clear(es);
4530 } else {
4531 if (shift) {
4532 /* delete character left of caret */
4533 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4534 EDIT_MoveBackward(es, TRUE);
4535 EDIT_WM_Clear(es);
4536 } else if (control) {
4537 /* delete to end of line */
4538 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4539 EDIT_MoveEnd(es, TRUE);
4540 EDIT_WM_Clear(es);
4541 } else {
4542 /* delete character right of caret */
4543 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4544 EDIT_MoveForward(es, TRUE);
4545 EDIT_WM_Clear(es);
4546 }
4547 }
4548 }
4549 break;
4550 case VK_INSERT:
4551 if (shift) {
4552 if (!(es->style & ES_READONLY))
4553 EDIT_WM_Paste(es);
4554 } else if (control)
4555 EDIT_WM_Copy(es);
4556 break;
4557 case VK_RETURN:
4558 /* If the edit doesn't want the return send a message to the default object */
4559 if(!(es->style & ES_WANTRETURN))
4560 {
4561 HWND hwndParent = GetParent(es->hwndSelf);
4562 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4563 if (HIWORD(dw) == DC_HASDEFID)
4564 {
4565 SendMessageW( hwndParent, WM_COMMAND,
4566 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4567 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4568 }
4569 }
4570 break;
4571 }
4572 return 0;
4573 }
4574
4575
4576 /*********************************************************************
4577 *
4578 * WM_KILLFOCUS
4579 *
4580 */
4581 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4582 {
4583 es->flags &= ~EF_FOCUSED;
4584 DestroyCaret();
4585 if(!(es->style & ES_NOHIDESEL))
4586 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4587 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
4588 return 0;
4589 }
4590
4591
4592 /*********************************************************************
4593 *
4594 * WM_LBUTTONDBLCLK
4595 *
4596 * The caret position has been set on the WM_LBUTTONDOWN message
4597 *
4598 */
4599 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4600 {
4601 INT s;
4602 INT e = es->selection_end;
4603 INT l;
4604 INT li;
4605 INT ll;
4606
4607 es->bCaptureState = TRUE;
4608 SetCapture(es->hwndSelf);
4609
4610 l = EDIT_EM_LineFromChar(es, e);
4611 li = EDIT_EM_LineIndex(es, l);
4612 ll = EDIT_EM_LineLength(es, e);
4613 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4614 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4615 EDIT_EM_SetSel(es, s, e, FALSE);
4616 EDIT_EM_ScrollCaret(es);
4617 es->region_posx = es->region_posy = 0;
4618 SetTimer(es->hwndSelf, 0, 100, NULL);
4619 return 0;
4620 }
4621
4622
4623 /*********************************************************************
4624 *
4625 * WM_LBUTTONDOWN
4626 *
4627 */
4628 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4629 {
4630 INT e;
4631 BOOL after_wrap;
4632
4633 es->bCaptureState = TRUE;
4634 SetCapture(es->hwndSelf);
4635 EDIT_ConfinePoint(es, &x, &y);
4636 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4637 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4638 EDIT_EM_ScrollCaret(es);
4639 es->region_posx = es->region_posy = 0;
4640 SetTimer(es->hwndSelf, 0, 100, NULL);
4641
4642 if (!(es->flags & EF_FOCUSED))
4643 SetFocus(es->hwndSelf);
4644
4645 return 0;
4646 }
4647
4648
4649 /*********************************************************************
4650 *
4651 * WM_LBUTTONUP
4652 *
4653 */
4654 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4655 {
4656 if (es->bCaptureState) {
4657 KillTimer(es->hwndSelf, 0);
4658 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4659 }
4660 es->bCaptureState = FALSE;
4661 return 0;
4662 }
4663
4664
4665 /*********************************************************************
4666 *
4667 * WM_MBUTTONDOWN
4668 *
4669 */
4670 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4671 {
4672 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4673 return 0;
4674 }
4675
4676
4677 /*********************************************************************
4678 *
4679 * WM_MOUSEMOVE
4680 *
4681 */
4682 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4683 {
4684 INT e;
4685 BOOL after_wrap;
4686 INT prex, prey;
4687
4688 /* If the mouse has been captured by process other than the edit control itself,
4689 * the windows edit controls will not select the strings with mouse move.
4690 */
4691 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
4692 return 0;
4693
4694 /*
4695 * FIXME: gotta do some scrolling if outside client
4696 * area. Maybe reset the timer ?
4697 */
4698 prex = x; prey = y;
4699 EDIT_ConfinePoint(es, &x, &y);
4700 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4701 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4702 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4703 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4704 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4705 return 0;
4706 }
4707
4708
4709 /*********************************************************************
4710 *
4711 * WM_NCCREATE
4712 *
4713 * See also EDIT_WM_StyleChanged
4714 */
4715 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4716 {
4717 EDITSTATE *es;
4718 UINT alloc_size;
4719
4720 TRACE("Creating %s edit control, style = %08lx\n",
4721 unicode ? "Unicode" : "ANSI", lpcs->style);
4722
4723 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4724 return FALSE;
4725 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4726
4727 /*
4728 * Note: since the EDITSTATE has not been fully initialized yet,
4729 * we can't use any API calls that may send
4730 * WM_XXX messages before WM_NCCREATE is completed.
4731 */
4732
4733 es->is_unicode = unicode;
4734 es->style = lpcs->style;
4735
4736 es->bEnableState = !(es->style & WS_DISABLED);
4737
4738 es->hwndSelf = hwnd;
4739 /* Save parent, which will be notified by EN_* messages */
4740 es->hwndParent = lpcs->hwndParent;
4741
4742 if (es->style & ES_COMBO)
4743 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4744
4745 /* Number overrides lowercase overrides uppercase (at least it
4746 * does in Win95). However I'll bet that ES_NUMBER would be
4747 * invalid under Win 3.1.
4748 */
4749 if (es->style & ES_NUMBER) {
4750 ; /* do not override the ES_NUMBER */
4751 } else if (es->style & ES_LOWERCASE) {
4752 es->style &= ~ES_UPPERCASE;
4753 }
4754 if (es->style & ES_MULTILINE) {
4755 es->buffer_limit = BUFLIMIT_MULTI;
4756 if (es->style & WS_VSCROLL)
4757 es->style |= ES_AUTOVSCROLL;
4758 if (es->style & WS_HSCROLL)
4759 es->style |= ES_AUTOHSCROLL;
4760 es->style &= ~ES_PASSWORD;
4761 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4762 /* Confirmed - RIGHT overrides CENTER */
4763 if (es->style & ES_RIGHT)
4764 es->style &= ~ES_CENTER;
4765 es->style &= ~WS_HSCROLL;
4766 es->style &= ~ES_AUTOHSCROLL;
4767 }
4768 } else {
4769 es->buffer_limit = BUFLIMIT_SINGLE;
4770 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4771 es->style &= ~ES_CENTER;
4772 es->style &= ~WS_HSCROLL;
4773 es->style &= ~WS_VSCROLL;
4774 if (es->style & ES_PASSWORD)
4775 es->password_char = '*';
4776 }
4777
4778 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4779 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4780 return FALSE;
4781 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4782
4783 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4784 return FALSE;
4785 es->undo_buffer_size = es->buffer_size;
4786
4787 if (es->style & ES_MULTILINE)
4788 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4789 return FALSE;
4790 es->line_count = 1;
4791
4792 /*
4793 * In Win95 look and feel, the WS_BORDER style is replaced by the
4794 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4795 * control a nonclient area so we don't need to draw the border.
4796 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4797 * a nonclient area and we should handle painting the border ourselves.
4798 *
4799 * When making modifications please ensure that the code still works
4800 * for edit controls created directly with style 0x50800000, exStyle 0
4801 * (which should have a single pixel border)
4802 */
4803 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4804 es->style &= ~WS_BORDER;
4805 else if (es->style & WS_BORDER)
4806 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4807
4808 return TRUE;
4809 }
4810
4811 /*********************************************************************
4812 *
4813 * WM_PAINT
4814 *
4815 */
4816 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
4817 {
4818 PAINTSTRUCT ps;
4819 INT i;
4820 HDC dc;
4821 HFONT old_font = 0;
4822 RECT rc;
4823 RECT rcClient;
4824 RECT rcLine;
4825 RECT rcRgn;
4826 HBRUSH brush;
4827 HBRUSH old_brush;
4828 INT bw, bh;
4829 BOOL rev = es->bEnableState &&
4830 ((es->flags & EF_FOCUSED) ||
4831 (es->style & ES_NOHIDESEL));
4832 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
4833
4834 GetClientRect(es->hwndSelf, &rcClient);
4835
4836 /* get the background brush */
4837 brush = EDIT_NotifyCtlColor(es, dc);
4838
4839 /* paint the border and the background */
4840 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4841
4842 if(es->style & WS_BORDER) {
4843 bw = GetSystemMetrics(SM_CXBORDER);
4844 bh = GetSystemMetrics(SM_CYBORDER);
4845 rc = rcClient;
4846 if(es->style & ES_MULTILINE) {
4847 if(es->style & WS_HSCROLL) rc.bottom+=bh;
4848 if(es->style & WS_VSCROLL) rc.right+=bw;
4849 }
4850
4851 /* Draw the frame. Same code as in nonclient.c */
4852 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
4853 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
4854 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
4855 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
4856 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
4857 SelectObject(dc, old_brush);
4858
4859 /* Keep the border clean */
4860 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
4861 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
4862 }
4863
4864 GetClipBox(dc, &rc);
4865 FillRect(dc, &rc, brush);
4866
4867 IntersectClipRect(dc, es->format_rect.left,
4868 es->format_rect.top,
4869 es->format_rect.right,
4870 es->format_rect.bottom);
4871 if (es->style & ES_MULTILINE) {
4872 rc = rcClient;
4873 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4874 }
4875 if (es->font)
4876 old_font = SelectObject(dc, es->font);
4877
4878 if (!es->bEnableState)
4879 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4880 GetClipBox(dc, &rcRgn);
4881 if (es->style & ES_MULTILINE) {
4882 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4883 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4884 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4885 if (IntersectRect(&rc, &rcRgn, &rcLine))
4886 EDIT_PaintLine(es, dc, i, rev);
4887 }
4888 } else {
4889 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4890 if (IntersectRect(&rc, &rcRgn, &rcLine))
4891 EDIT_PaintLine(es, dc, 0, rev);
4892 }
4893 if (es->font)
4894 SelectObject(dc, old_font);
4895
4896 if (!hdc)
4897 EndPaint(es->hwndSelf, &ps);
4898 }
4899
4900
4901 /*********************************************************************
4902 *
4903 * WM_PASTE
4904 *
4905 */
4906 static void EDIT_WM_Paste(EDITSTATE *es)
4907 {
4908 HGLOBAL hsrc;
4909 LPWSTR src;
4910
4911 /* Protect read-only edit control from modification */
4912 if(es->style & ES_READONLY)
4913 return;
4914
4915 OpenClipboard(es->hwndSelf);
4916 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4917 src = (LPWSTR)GlobalLock(hsrc);
4918 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4919 GlobalUnlock(hsrc);
4920 }
4921 CloseClipboard();
4922 }
4923
4924
4925 /*********************************************************************
4926 *
4927 * WM_SETFOCUS
4928 *
4929 */
4930 static void EDIT_WM_SetFocus(EDITSTATE *es)
4931 {
4932 es->flags |= EF_FOCUSED;
4933
4934 if (!(es->style & ES_NOHIDESEL))
4935 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4936
4937 /* single line edit updates itself */
4938 if (!(es->style & ES_MULTILINE))
4939 {
4940 HDC hdc = GetDC(es->hwndSelf);
4941 EDIT_WM_Paint(es, hdc);
4942 ReleaseDC(es->hwndSelf, hdc);
4943 }
4944
4945 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4946 EDIT_SetCaretPos(es, es->selection_end,
4947 es->flags & EF_AFTER_WRAP);
4948 ShowCaret(es->hwndSelf);
4949 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
4950 }
4951
4952
4953 /*********************************************************************
4954 *
4955 * WM_SETFONT
4956 *
4957 * With Win95 look the margins are set to default font value unless
4958 * the system font (font == 0) is being set, in which case they are left
4959 * unchanged.
4960 *
4961 */
4962 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4963 {
4964 TEXTMETRICW tm;
4965 HDC dc;
4966 HFONT old_font = 0;
4967 RECT clientRect;
4968
4969 es->font = font;
4970 dc = GetDC(es->hwndSelf);
4971 if (font)
4972 old_font = SelectObject(dc, font);
4973 GetTextMetricsW(dc, &tm);
4974 es->line_height = tm.tmHeight;
4975 es->char_width = tm.tmAveCharWidth;
4976 if (font)
4977 SelectObject(dc, old_font);
4978 ReleaseDC(es->hwndSelf, dc);
4979
4980 /* Reset the format rect and the margins */
4981 GetClientRect(es->hwndSelf, &clientRect);
4982 EDIT_SetRectNP(es, &clientRect);
4983 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4984 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
4985
4986 if (es->style & ES_MULTILINE)
4987 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4988 else
4989 EDIT_CalcLineWidth_SL(es);
4990
4991 if (redraw)
4992 EDIT_UpdateText(es, NULL, TRUE);
4993 if (es->flags & EF_FOCUSED) {
4994 DestroyCaret();
4995 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4996 EDIT_SetCaretPos(es, es->selection_end,
4997 es->flags & EF_AFTER_WRAP);
4998 ShowCaret(es->hwndSelf);
4999 }
5000 }
5001
5002
5003 /*********************************************************************
5004 *
5005 * WM_SETTEXT
5006 *
5007 * NOTES
5008 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
5009 * The modified flag is reset. No notifications are sent.
5010 *
5011 * For single-line controls, reception of WM_SETTEXT triggers:
5012 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
5013 *
5014 */
5015 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
5016 {
5017 if (!unicode && text)
5018 {
5019 LPCSTR textA = (LPCSTR)text;
5020 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
5021 LPWSTR textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
5022 if (textW)
5023 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
5024 text = textW;
5025 }
5026
5027 if (es->flags & EF_UPDATE)
5028 /* fixed this bug once; complain if we see it about to happen again. */
5029 ERR("SetSel may generate UPDATE message whose handler may reset "
5030 "selection.\n");
5031
5032 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
5033 if (text)
5034 {
5035 TRACE("%s\n", debugstr_w(text));
5036 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
5037 if(!unicode)
5038 HeapFree(GetProcessHeap(), 0, (LPWSTR)text);
5039 }
5040 else
5041 {
5042 static const WCHAR empty_stringW[] = {0};
5043 TRACE("<NULL>\n");
5044 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
5045 }
5046 es->x_offset = 0;
5047 es->flags &= ~EF_MODIFIED;
5048 EDIT_EM_SetSel(es, 0, 0, FALSE);
5049
5050 /* Send the notification after the selection start and end have been set
5051 * edit control doesn't send notification on WM_SETTEXT
5052 * if it is multiline, or it is part of combobox
5053 */
5054 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
5055 {
5056 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5057 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
5058 }
5059 EDIT_EM_ScrollCaret(es);
5060 EDIT_UpdateScrollInfo(es);
5061 }
5062
5063
5064 /*********************************************************************
5065 *
5066 * WM_SIZE
5067 *
5068 */
5069 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
5070 {
5071 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
5072 RECT rc;
5073 TRACE("width = %d, height = %d\n", width, height);
5074 SetRect(&rc, 0, 0, width, height);
5075 EDIT_SetRectNP(es, &rc);
5076 EDIT_UpdateText(es, NULL, TRUE);
5077 }
5078 }
5079
5080
5081 /*********************************************************************
5082 *
5083 * WM_STYLECHANGED
5084 *
5085 * This message is sent by SetWindowLong on having changed either the Style
5086 * or the extended style.
5087 *
5088 * We ensure that the window's version of the styles and the EDITSTATE's agree.
5089 *
5090 * See also EDIT_WM_NCCreate
5091 *
5092 * It appears that the Windows version of the edit control allows the style
5093 * (as retrieved by GetWindowLong) to be any value and maintains an internal
5094 * style variable which will generally be different. In this function we
5095 * update the internal style based on what changed in the externally visible
5096 * style.
5097 *
5098 * Much of this content as based upon the MSDN, especially:
5099 * Platform SDK Documentation -> User Interface Services ->
5100 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
5101 * Edit Control Styles
5102 */
5103 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
5104 {
5105 if (GWL_STYLE == which) {
5106 DWORD style_change_mask;
5107 DWORD new_style;
5108 /* Only a subset of changes can be applied after the control
5109 * has been created.
5110 */
5111 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
5112 ES_NUMBER;
5113 if (es->style & ES_MULTILINE)
5114 style_change_mask |= ES_WANTRETURN;
5115
5116 new_style = style->styleNew & style_change_mask;
5117
5118 /* Number overrides lowercase overrides uppercase (at least it
5119 * does in Win95). However I'll bet that ES_NUMBER would be
5120 * invalid under Win 3.1.
5121 */
5122 if (new_style & ES_NUMBER) {
5123 ; /* do not override the ES_NUMBER */
5124 } else if (new_style & ES_LOWERCASE) {
5125 new_style &= ~ES_UPPERCASE;
5126 }
5127
5128 es->style = (es->style & ~style_change_mask) | new_style;
5129 } else if (GWL_EXSTYLE == which) {
5130 ; /* FIXME - what is needed here */
5131 } else {
5132 WARN ("Invalid style change %d\n",which);
5133 }
5134
5135 return 0;
5136 }
5137
5138 /*********************************************************************
5139 *
5140 * WM_SYSKEYDOWN
5141 *
5142 */
5143 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
5144 {
5145 if ((key == VK_BACK) && (key_data & 0x2000)) {
5146 if (EDIT_EM_CanUndo(es))
5147 EDIT_EM_Undo(es);
5148 return 0;
5149 } else if (key == VK_UP || key == VK_DOWN) {
5150 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
5151 return 0;
5152 }
5153 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
5154 }
5155
5156
5157 /*********************************************************************
5158 *
5159 * WM_TIMER
5160 *
5161 */
5162 static void EDIT_WM_Timer(EDITSTATE *es)
5163 {
5164 if (es->region_posx < 0) {
5165 EDIT_MoveBackward(es, TRUE);
5166 } else if (es->region_posx > 0) {
5167 EDIT_MoveForward(es, TRUE);
5168 }
5169 /*
5170 * FIXME: gotta do some vertical scrolling here, like
5171 * EDIT_EM_LineScroll(hwnd, 0, 1);
5172 */
5173 }
5174
5175 /*********************************************************************
5176 *
5177 * WM_VSCROLL
5178 *
5179 */
5180 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
5181 {
5182 INT dy;
5183
5184 if (!(es->style & ES_MULTILINE))
5185 return 0;
5186
5187 if (!(es->style & ES_AUTOVSCROLL))
5188 return 0;
5189
5190 dy = 0;
5191 switch (action) {
5192 case SB_LINEUP:
5193 case SB_LINEDOWN:
5194 case SB_PAGEUP:
5195 case SB_PAGEDOWN:
5196 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
5197 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
5198 (action == SB_PAGEUP ? "SB_PAGEUP" :
5199 "SB_PAGEDOWN"))));
5200 EDIT_EM_Scroll(es, action);
5201 return 0;
5202 case SB_TOP:
5203 TRACE("SB_TOP\n");
5204 dy = -es->y_offset;
5205 break;
5206 case SB_BOTTOM:
5207 TRACE("SB_BOTTOM\n");
5208 dy = es->line_count - 1 - es->y_offset;
5209 break;
5210 case SB_THUMBTRACK:
5211 TRACE("SB_THUMBTRACK %d\n", pos);
5212 es->flags |= EF_VSCROLL_TRACK;
5213 if(es->style & WS_VSCROLL)
5214 dy = pos - es->y_offset;
5215 else
5216 {
5217 /* Assume default scroll range 0-100 */
5218 INT vlc, new_y;
5219 /* Sanity check */
5220 if(pos < 0 || pos > 100) return 0;
5221 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5222 new_y = pos * (es->line_count - vlc) / 100;
5223 dy = es->line_count ? (new_y - es->y_offset) : 0;
5224 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5225 es->line_count, es->y_offset, pos, dy);
5226 }
5227 break;
5228 case SB_THUMBPOSITION:
5229 TRACE("SB_THUMBPOSITION %d\n", pos);
5230 es->flags &= ~EF_VSCROLL_TRACK;
5231 if(es->style & WS_VSCROLL)
5232 dy = pos - es->y_offset;
5233 else
5234 {
5235 /* Assume default scroll range 0-100 */
5236 INT vlc, new_y;
5237 /* Sanity check */
5238 if(pos < 0 || pos > 100) return 0;
5239 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5240 new_y = pos * (es->line_count - vlc) / 100;
5241 dy = es->line_count ? (new_y - es->y_offset) : 0;
5242 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
5243 es->line_count, es->y_offset, pos, dy);
5244 }
5245 if (!dy)
5246 {
5247 /* force scroll info update */
5248 EDIT_UpdateScrollInfo(es);
5249 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
5250 }
5251 break;
5252 case SB_ENDSCROLL:
5253 TRACE("SB_ENDSCROLL\n");
5254 break;
5255 /*
5256 * FIXME : the next two are undocumented !
5257 * Are we doing the right thing ?
5258 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
5259 * although it's also a regular control message.
5260 */
5261 case EM_GETTHUMB: /* this one is used by NT notepad */
5262 case EM_GETTHUMB16:
5263 {
5264 LRESULT ret;
5265 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
5266 ret = GetScrollPos(es->hwndSelf, SB_VERT);
5267 else
5268 {
5269 /* Assume default scroll range 0-100 */
5270 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
5271 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
5272 }
5273 TRACE("EM_GETTHUMB: returning %ld\n", ret);
5274 return ret;
5275 }
5276 case EM_LINESCROLL16:
5277 TRACE("EM_LINESCROLL16 %d\n", pos);
5278 dy = pos;
5279 break;
5280
5281 default:
5282 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
5283 action, action);
5284 return 0;
5285 }
5286 if (dy)
5287 EDIT_EM_LineScroll(es, 0, dy);
5288 return 0;
5289 }
5290
5291 /*********************************************************************
5292 *
5293 * EDIT_UpdateText
5294 *
5295 */
5296 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
5297 {
5298 if (es->flags & EF_UPDATE) {
5299 es->flags &= ~EF_UPDATE;
5300 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5301 }
5302 InvalidateRgn(es->hwndSelf, hrgn, bErase);
5303 }
5304
5305
5306 /*********************************************************************
5307 *
5308 * EDIT_UpdateText
5309 *
5310 */
5311 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
5312 {
5313 if (es->flags & EF_UPDATE) {
5314 es->flags &= ~EF_UPDATE;
5315 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
5316 }
5317 InvalidateRect(es->hwndSelf, rc, bErase);
5318 }
5319
5320 /********************************************************************
5321 *
5322 * The Following code is to handle inline editing from IMEs
5323 */
5324
5325 static void EDIT_GetCompositionStr(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5326 {
5327 DWORD dwBufLen;
5328 LPWSTR lpCompStr = NULL;
5329 HIMC hIMC;
5330 LPSTR lpCompStrAttr = NULL;
5331 DWORD dwBufLenAttr;
5332
5333 if (!(hIMC = ImmGetContext(hwnd)))
5334 return;
5335
5336 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
5337
5338 if (dwBufLen <= 0)
5339 {
5340 ImmReleaseContext(hwnd, hIMC);
5341 return;
5342 }
5343
5344 lpCompStr = HeapAlloc(GetProcessHeap(),0,dwBufLen);
5345 if (!lpCompStr)
5346 {
5347 ERR("Unable to allocate IME CompositionString\n");
5348 ImmReleaseContext(hwnd,hIMC);
5349 return;
5350 }
5351
5352 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, dwBufLen);
5353 lpCompStr[dwBufLen/sizeof(WCHAR)] = 0;
5354
5355 if (CompFlag & GCS_COMPATTR)
5356 {
5357 /*
5358 * We do not use the attributes yet. it would tell us what characters
5359 * are in transition and which are converted or decided upon
5360 */
5361 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
5362 if (dwBufLenAttr)
5363 {
5364 dwBufLenAttr ++;
5365 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr);
5366 if (!lpCompStrAttr)
5367 {
5368 ERR("Unable to allocate IME Attribute String\n");
5369 HeapFree(GetProcessHeap(),0,lpCompStr);
5370 ImmReleaseContext(hwnd,hIMC);
5371 return;
5372 }
5373 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
5374 dwBufLenAttr);
5375 lpCompStrAttr[dwBufLenAttr] = 0;
5376 }
5377 else
5378 lpCompStrAttr = NULL;
5379 }
5380
5381 /* check for change in composition start */
5382 if (es->selection_end < es->composition_start)
5383 es->composition_start = es->selection_end;
5384
5385 /* replace existing selection string */
5386 es->selection_start = es->composition_start;
5387
5388 if (es->composition_len > 0)
5389 es->selection_end = es->composition_start + es->composition_len;
5390 else
5391 es->selection_end = es->selection_start;
5392
5393 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
5394 es->composition_len = abs(es->composition_start - es->selection_end);
5395
5396 es->selection_start = es->composition_start;
5397 es->selection_end = es->selection_start + es->composition_len;
5398
5399 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
5400 HeapFree(GetProcessHeap(),0,lpCompStr);
5401 ImmReleaseContext(hwnd,hIMC);
5402 }
5403
5404 static void EDIT_GetResultStr(HWND hwnd, EDITSTATE *es)
5405 {
5406 DWORD dwBufLen;
5407 LPWSTR lpResultStr;
5408 HIMC hIMC;
5409
5410 if ( !(hIMC = ImmGetContext(hwnd)))
5411 return;
5412
5413 dwBufLen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
5414 if (dwBufLen <= 0)
5415 {
5416 ImmReleaseContext(hwnd, hIMC);
5417 return;
5418 }
5419
5420 lpResultStr = HeapAlloc(GetProcessHeap(),0, dwBufLen);
5421 if (!lpResultStr)
5422 {
5423 ERR("Unable to alloc buffer for IME string\n");
5424 ImmReleaseContext(hwnd, hIMC);
5425 return;
5426 }
5427
5428 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, dwBufLen);
5429 lpResultStr[dwBufLen/sizeof(WCHAR)] = 0;
5430
5431 /* check for change in composition start */
5432 if (es->selection_end < es->composition_start)
5433 es->composition_start = es->selection_end;
5434
5435 es->selection_start = es->composition_start;
5436 es->selection_end = es->composition_start + es->composition_len;
5437 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
5438 es->composition_start = es->selection_end;
5439 es->composition_len = 0;
5440
5441 HeapFree(GetProcessHeap(),0,lpResultStr);
5442 ImmReleaseContext(hwnd, hIMC);
5443 }
5444
5445 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
5446 {
5447 if (CompFlag & GCS_RESULTSTR)
5448 EDIT_GetResultStr(hwnd,es);
5449 if (CompFlag & GCS_COMPSTR)
5450 EDIT_GetCompositionStr(hwnd, CompFlag, es);
5451 }
Windows API implementation