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Draw background in WM_PAINT instead of WM_ERASEBKGND.
[wine.git] / controls / edit.c
blob7e2a0500ac5c24dd4026f7724acfdc42cc23f42f
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * TODO:
24 * - ES_CENTER
25 * - ES_RIGHT
26 * - ES_OEMCONVERT
27 * -!ES_AUTOVSCROLL (every multi line control *is* auto vscroll)
28 * -!ES_AUTOHSCROLL (every single line control *is* auto hscroll)
29 *
30 * When there is no autoscrolling, the control should first check whether
31 * the new text would fit. If not, an EN_MAXTEXT should be sent.
32 * However, currently this would require the actual change to be made,
33 * then call EDIT_BuildLineDefs() and then find out that the new text doesn't
34 * fit. After all this, things should be put back in the state before the
35 * changes. Note that for multi line controls !ES_AUTOHSCROLL works : wordwrap.
36 *
37 */
38
39 #include "config.h"
40
41 #include <stdarg.h>
42 #include <string.h>
43 #include <stdlib.h>
44
45 #include "windef.h"
46 #include "winbase.h"
47 #include "winnt.h"
48 #include "wownt32.h"
49 #include "win.h"
50 #include "wine/winbase16.h"
51 #include "wine/winuser16.h"
52 #include "wine/unicode.h"
53 #include "controls.h"
54 #include "local.h"
55 #include "message.h"
56 #include "user.h"
57 #include "wine/debug.h"
58
59 WINE_DEFAULT_DEBUG_CHANNEL(edit);
60 WINE_DECLARE_DEBUG_CHANNEL(combo);
61 WINE_DECLARE_DEBUG_CHANNEL(relay);
62
63 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
64 FIXME: BTW, new specs say 65535 (do you dare ???) */
65 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
66 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
67 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
68 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
69
70 /*
71 * extra flags for EDITSTATE.flags field
72 */
73 #define EF_MODIFIED 0x0001 /* text has been modified */
74 #define EF_FOCUSED 0x0002 /* we have input focus */
75 #define EF_UPDATE 0x0004 /* notify parent of changed state */
76 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
77 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
78 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
79 wrapped line, instead of in front of the next character */
80 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
81
82 typedef enum
83 {
84 END_0 = 0, /* line ends with terminating '\0' character */
85 END_WRAP, /* line is wrapped */
86 END_HARD, /* line ends with a hard return '\r\n' */
87 END_SOFT, /* line ends with a soft return '\r\r\n' */
88 END_RICH /* line ends with a single '\n' */
89 } LINE_END;
90
91 typedef struct tagLINEDEF {
92 INT length; /* bruto length of a line in bytes */
93 INT net_length; /* netto length of a line in visible characters */
94 LINE_END ending;
95 INT width; /* width of the line in pixels */
96 INT index; /* line index into the buffer */
97 struct tagLINEDEF *next;
98 } LINEDEF;
99
100 typedef struct
101 {
102 BOOL is_unicode; /* how the control was created */
103 LPWSTR text; /* the actual contents of the control */
104 UINT buffer_size; /* the size of the buffer in characters */
105 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
106 HFONT font; /* NULL means standard system font */
107 INT x_offset; /* scroll offset for multi lines this is in pixels
108 for single lines it's in characters */
109 INT line_height; /* height of a screen line in pixels */
110 INT char_width; /* average character width in pixels */
111 DWORD style; /* sane version of wnd->dwStyle */
112 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
113 INT undo_insert_count; /* number of characters inserted in sequence */
114 UINT undo_position; /* character index of the insertion and deletion */
115 LPWSTR undo_text; /* deleted text */
116 UINT undo_buffer_size; /* size of the deleted text buffer */
117 INT selection_start; /* == selection_end if no selection */
118 INT selection_end; /* == current caret position */
119 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
120 INT left_margin; /* in pixels */
121 INT right_margin; /* in pixels */
122 RECT format_rect;
123 INT text_width; /* width of the widest line in pixels for multi line controls
124 and just line width for single line controls */
125 INT region_posx; /* Position of cursor relative to region: */
126 INT region_posy; /* -1: to left, 0: within, 1: to right */
127 EDITWORDBREAKPROC16 word_break_proc16;
128 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
129 INT line_count; /* number of lines */
130 INT y_offset; /* scroll offset in number of lines */
131 BOOL bCaptureState; /* flag indicating whether mouse was captured */
132 BOOL bEnableState; /* flag keeping the enable state */
133 HWND hwndSelf; /* the our window handle */
134 HWND hwndParent; /* Handle of parent for sending EN_* messages.
135 Even if parent will change, EN_* messages
136 should be sent to the first parent. */
137 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
138 /*
139 * only for multi line controls
140 */
141 INT lock_count; /* amount of re-entries in the EditWndProc */
142 INT tabs_count;
143 LPINT tabs;
144 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
145 HLOCAL hloc32W; /* our unicode local memory block */
146 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
147 or EM_SETHANDLE16 */
148 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
149 or EM_SETHANDLE */
150 } EDITSTATE;
151
152
153 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
154 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
155
156 /* used for disabled or read-only edit control */
157 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
158 do \
159 { /* Notify parent which has created this edit control */ \
160 TRACE("notification " str " sent to hwnd=%p\n", es->hwndParent); \
161 SendMessageW(es->hwndParent, WM_COMMAND, \
162 MAKEWPARAM(GetWindowLongW((es->hwndSelf),GWL_ID), wNotifyCode), \
163 (LPARAM)(es->hwndSelf)); \
164 } while(0)
165
166 /*********************************************************************
167 *
168 * Declarations
169 *
170 */
171
172 /*
173 * These functions have trivial implementations
174 * We still like to call them internally
175 * "static inline" makes them more like macro's
176 */
177 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
178 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
179 static inline void EDIT_WM_Clear(EDITSTATE *es);
180 static inline void EDIT_WM_Cut(EDITSTATE *es);
181
182 /*
183 * Helper functions only valid for one type of control
184 */
185 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
186 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
187 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
188 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
189 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
190 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
191 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
192 /*
193 * Helper functions valid for both single line _and_ multi line controls
194 */
195 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
196 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
197 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
198 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
199 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
200 static void EDIT_LockBuffer(EDITSTATE *es);
201 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
202 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
203 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
204 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
205 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
206 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
207 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
208 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
209 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
210 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
211 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
212 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
213 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
214 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
215 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
216 /*
217 * EM_XXX message handlers
218 */
219 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
220 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
221 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
222 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
223 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
224 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
225 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
226 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
227 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
228 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
229 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
230 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
231 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
232 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
233 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
234 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
235 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
236 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
237 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
238 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
239 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
240 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
241 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
242 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
243 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam);
244 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
245 static BOOL EDIT_EM_Undo(EDITSTATE *es);
246 /*
247 * WM_XXX message handlers
248 */
249 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
250 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
251 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
252 static void EDIT_WM_Copy(EDITSTATE *es);
253 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
254 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
255 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
256 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
257 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
258 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
259 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
260 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
261 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
262 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
263 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
264 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
265 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
266 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam);
267 static void EDIT_WM_Paste(EDITSTATE *es);
268 static void EDIT_WM_SetFocus(EDITSTATE *es);
269 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
270 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode);
271 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
272 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
273 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
274 static void EDIT_WM_Timer(EDITSTATE *es);
275 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
276 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
277 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
278
279 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
280 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
281
282 /*********************************************************************
283 * edit class descriptor
284 */
285 const struct builtin_class_descr EDIT_builtin_class =
286 {
287 "Edit", /* name */
288 CS_DBLCLKS | CS_PARENTDC, /* style */
289 EditWndProcA, /* procA */
290 EditWndProcW, /* procW */
291 sizeof(EDITSTATE *), /* extra */
292 IDC_IBEAM, /* cursor */
293 0 /* brush */
294 };
295
296
297 /*********************************************************************
298 *
299 * EM_CANUNDO
300 *
301 */
302 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
303 {
304 return (es->undo_insert_count || strlenW(es->undo_text));
305 }
306
307
308 /*********************************************************************
309 *
310 * EM_EMPTYUNDOBUFFER
311 *
312 */
313 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
314 {
315 es->undo_insert_count = 0;
316 *es->undo_text = '\0';
317 }
318
319
320 /*********************************************************************
321 *
322 * WM_CLEAR
323 *
324 */
325 static inline void EDIT_WM_Clear(EDITSTATE *es)
326 {
327 static const WCHAR empty_stringW[] = {0};
328
329 /* Protect read-only edit control from modification */
330 if(es->style & ES_READONLY)
331 return;
332
333 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
334 }
335
336
337 /*********************************************************************
338 *
339 * WM_CUT
340 *
341 */
342 static inline void EDIT_WM_Cut(EDITSTATE *es)
343 {
344 EDIT_WM_Copy(es);
345 EDIT_WM_Clear(es);
346 }
347
348
349 /**********************************************************************
350 * get_app_version
351 *
352 * Returns the window version in case Wine emulates a later version
353 * of windows than the application expects.
354 *
355 * In a number of cases when windows runs an application that was
356 * designed for an earlier windows version, windows reverts
357 * to "old" behaviour of that earlier version.
358 *
359 * An example is a disabled edit control that needs to be painted.
360 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
361 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
362 * applications with an expected version 0f 4.0 or higher.
363 *
364 */
365 static DWORD get_app_version(void)
366 {
367 static DWORD version;
368 if (!version)
369 {
370 DWORD dwEmulatedVersion;
371 OSVERSIONINFOW info;
372 DWORD dwProcVersion = GetProcessVersion(0);
373
374 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
375 GetVersionExW( &info );
376 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
377 /* FIXME: this may not be 100% correct; see discussion on the
378 * wine developer list in Nov 1999 */
379 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
380 }
381 return version;
382 }
383
384
385 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
386 {
387 UINT msg;
388
389 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
390 msg = WM_CTLCOLORSTATIC;
391 else
392 msg = WM_CTLCOLOREDIT;
393
394 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
395 return (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
396 }
397
398 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
399 {
400 if(unicode)
401 return DefWindowProcW(hwnd, msg, wParam, lParam);
402 else
403 return DefWindowProcA(hwnd, msg, wParam, lParam);
404 }
405
406 /*********************************************************************
407 *
408 * EditWndProc_common
409 *
410 * The messages are in the order of the actual integer values
411 * (which can be found in include/windows.h)
412 * Wherever possible the 16 bit versions are converted to
413 * the 32 bit ones, so that we can 'fall through' to the
414 * helper functions. These are mostly 32 bit (with a few
415 * exceptions, clearly indicated by a '16' extension to their
416 * names).
417 *
418 */
419 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
420 WPARAM wParam, LPARAM lParam, BOOL unicode )
421 {
422 EDITSTATE *es = (EDITSTATE *)GetWindowLongW( hwnd, 0 );
423 LRESULT result = 0;
424
425 TRACE("hwnd=%p msg=%x (%s) wparam=%x lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
426
427 if (!es && msg != WM_NCCREATE)
428 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
429 else if (msg == WM_NCCREATE)
430 return EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
431 else if (msg == WM_DESTROY)
432 return EDIT_WM_Destroy(es);
433
434
435 if (es) EDIT_LockBuffer(es);
436
437 switch (msg) {
438 case EM_GETSEL16:
439 wParam = 0;
440 lParam = 0;
441 /* fall through */
442 case EM_GETSEL:
443 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
444 break;
445
446 case EM_SETSEL16:
447 if ((short)LOWORD(lParam) == -1)
448 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
449 else
450 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
451 if (!wParam)
452 EDIT_EM_ScrollCaret(es);
453 result = 1;
454 break;
455 case EM_SETSEL:
456 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
457 EDIT_EM_ScrollCaret(es);
458 result = 1;
459 break;
460
461 case EM_GETRECT16:
462 if (lParam)
463 CONV_RECT32TO16(&es->format_rect, MapSL(lParam));
464 break;
465 case EM_GETRECT:
466 if (lParam)
467 CopyRect((LPRECT)lParam, &es->format_rect);
468 break;
469
470 case EM_SETRECT16:
471 if ((es->style & ES_MULTILINE) && lParam) {
472 RECT rc;
473 CONV_RECT16TO32(MapSL(lParam), &rc);
474 EDIT_SetRectNP(es, &rc);
475 EDIT_UpdateText(es, NULL, TRUE);
476 }
477 break;
478 case EM_SETRECT:
479 if ((es->style & ES_MULTILINE) && lParam) {
480 EDIT_SetRectNP(es, (LPRECT)lParam);
481 EDIT_UpdateText(es, NULL, TRUE);
482 }
483 break;
484
485 case EM_SETRECTNP16:
486 if ((es->style & ES_MULTILINE) && lParam) {
487 RECT rc;
488 CONV_RECT16TO32(MapSL(lParam), &rc);
489 EDIT_SetRectNP(es, &rc);
490 }
491 break;
492 case EM_SETRECTNP:
493 if ((es->style & ES_MULTILINE) && lParam)
494 EDIT_SetRectNP(es, (LPRECT)lParam);
495 break;
496
497 case EM_SCROLL16:
498 case EM_SCROLL:
499 result = EDIT_EM_Scroll(es, (INT)wParam);
500 break;
501
502 case EM_LINESCROLL16:
503 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
504 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
505 /* fall through */
506 case EM_LINESCROLL:
507 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
508 break;
509
510 case EM_SCROLLCARET16:
511 case EM_SCROLLCARET:
512 EDIT_EM_ScrollCaret(es);
513 result = 1;
514 break;
515
516 case EM_GETMODIFY16:
517 case EM_GETMODIFY:
518 result = ((es->flags & EF_MODIFIED) != 0);
519 break;
520
521 case EM_SETMODIFY16:
522 case EM_SETMODIFY:
523 if (wParam)
524 es->flags |= EF_MODIFIED;
525 else
526 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
527 break;
528
529 case EM_GETLINECOUNT16:
530 case EM_GETLINECOUNT:
531 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
532 break;
533
534 case EM_LINEINDEX16:
535 if ((INT16)wParam == -1)
536 wParam = (WPARAM)-1;
537 /* fall through */
538 case EM_LINEINDEX:
539 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
540 break;
541
542 case EM_SETHANDLE16:
543 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
544 break;
545 case EM_SETHANDLE:
546 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
547 break;
548
549 case EM_GETHANDLE16:
550 result = (LRESULT)EDIT_EM_GetHandle16(es);
551 break;
552 case EM_GETHANDLE:
553 result = (LRESULT)EDIT_EM_GetHandle(es);
554 break;
555
556 case EM_GETTHUMB16:
557 case EM_GETTHUMB:
558 result = EDIT_EM_GetThumb(es);
559 break;
560
561 /* these messages missing from specs */
562 case WM_USER+15:
563 case 0x00bf:
564 case WM_USER+16:
565 case 0x00c0:
566 case WM_USER+19:
567 case 0x00c3:
568 case WM_USER+26:
569 case 0x00ca:
570 FIXME("undocumented message 0x%x, please report\n", msg);
571 result = DefWindowProcW(hwnd, msg, wParam, lParam);
572 break;
573
574 case EM_LINELENGTH16:
575 case EM_LINELENGTH:
576 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
577 break;
578
579 case EM_REPLACESEL16:
580 lParam = (LPARAM)MapSL(lParam);
581 unicode = FALSE; /* 16-bit message is always ascii */
582 /* fall through */
583 case EM_REPLACESEL:
584 {
585 LPWSTR textW;
586
587 if(unicode)
588 textW = (LPWSTR)lParam;
589 else
590 {
591 LPSTR textA = (LPSTR)lParam;
592 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
593 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
594 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
595 }
596
597 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
598 result = 1;
599
600 if(!unicode)
601 HeapFree(GetProcessHeap(), 0, textW);
602 break;
603 }
604
605 case EM_GETLINE16:
606 lParam = (LPARAM)MapSL(lParam);
607 unicode = FALSE; /* 16-bit message is always ascii */
608 /* fall through */
609 case EM_GETLINE:
610 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
611 break;
612
613 case EM_LIMITTEXT16:
614 case EM_SETLIMITTEXT:
615 EDIT_EM_SetLimitText(es, (INT)wParam);
616 break;
617
618 case EM_CANUNDO16:
619 case EM_CANUNDO:
620 result = (LRESULT)EDIT_EM_CanUndo(es);
621 break;
622
623 case EM_UNDO16:
624 case EM_UNDO:
625 case WM_UNDO:
626 result = (LRESULT)EDIT_EM_Undo(es);
627 break;
628
629 case EM_FMTLINES16:
630 case EM_FMTLINES:
631 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
632 break;
633
634 case EM_LINEFROMCHAR16:
635 case EM_LINEFROMCHAR:
636 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
637 break;
638
639 case EM_SETTABSTOPS16:
640 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
641 break;
642 case EM_SETTABSTOPS:
643 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
644 break;
645
646 case EM_SETPASSWORDCHAR16:
647 unicode = FALSE; /* 16-bit message is always ascii */
648 /* fall through */
649 case EM_SETPASSWORDCHAR:
650 {
651 WCHAR charW = 0;
652
653 if(unicode)
654 charW = (WCHAR)wParam;
655 else
656 {
657 CHAR charA = wParam;
658 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
659 }
660
661 EDIT_EM_SetPasswordChar(es, charW);
662 break;
663 }
664
665 case EM_EMPTYUNDOBUFFER16:
666 case EM_EMPTYUNDOBUFFER:
667 EDIT_EM_EmptyUndoBuffer(es);
668 break;
669
670 case EM_GETFIRSTVISIBLELINE16:
671 result = es->y_offset;
672 break;
673 case EM_GETFIRSTVISIBLELINE:
674 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
675 break;
676
677 case EM_SETREADONLY16:
678 case EM_SETREADONLY:
679 if (wParam) {
680 SetWindowLongW( hwnd, GWL_STYLE,
681 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
682 es->style |= ES_READONLY;
683 } else {
684 SetWindowLongW( hwnd, GWL_STYLE,
685 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
686 es->style &= ~ES_READONLY;
687 }
688 result = 1;
689 break;
690
691 case EM_SETWORDBREAKPROC16:
692 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
693 break;
694 case EM_SETWORDBREAKPROC:
695 EDIT_EM_SetWordBreakProc(es, lParam);
696 break;
697
698 case EM_GETWORDBREAKPROC16:
699 result = (LRESULT)es->word_break_proc16;
700 break;
701 case EM_GETWORDBREAKPROC:
702 result = (LRESULT)es->word_break_proc;
703 break;
704
705 case EM_GETPASSWORDCHAR16:
706 unicode = FALSE; /* 16-bit message is always ascii */
707 /* fall through */
708 case EM_GETPASSWORDCHAR:
709 {
710 if(unicode)
711 result = es->password_char;
712 else
713 {
714 WCHAR charW = es->password_char;
715 CHAR charA = 0;
716 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
717 result = charA;
718 }
719 break;
720 }
721
722 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
723
724 case EM_SETMARGINS:
725 EDIT_EM_SetMargins(es, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
726 break;
727
728 case EM_GETMARGINS:
729 result = MAKELONG(es->left_margin, es->right_margin);
730 break;
731
732 case EM_GETLIMITTEXT:
733 result = es->buffer_limit;
734 break;
735
736 case EM_POSFROMCHAR:
737 result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
738 break;
739
740 case EM_CHARFROMPOS:
741 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
742 break;
743
744 /* End of the EM_ messages which were in numerical order; what order
745 * are these in? vaguely alphabetical?
746 */
747
748 case WM_GETDLGCODE:
749 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
750
751 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
752 {
753 int vk = (int)((LPMSG)lParam)->wParam;
754
755 if (vk == VK_RETURN && (GetWindowLongW( hwnd, GWL_STYLE ) & ES_WANTRETURN))
756 {
757 result |= DLGC_WANTMESSAGE;
758 }
759 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
760 {
761 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
762 result |= DLGC_WANTMESSAGE;
763 }
764 }
765 break;
766
767 case WM_IME_CHAR:
768 if (!unicode)
769 {
770 WCHAR charW;
771 CHAR strng[2];
772
773 strng[0] = wParam >> 8;
774 strng[1] = wParam & 0xff;
775 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
776 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
777 EDIT_WM_Char(es, charW);
778 break;
779 }
780 /* fall through */
781 case WM_CHAR:
782 {
783 WCHAR charW;
784
785 if(unicode)
786 charW = wParam;
787 else
788 {
789 CHAR charA = wParam;
790 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
791 }
792
793 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
794 {
795 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
796 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
797 break;
798 }
799 EDIT_WM_Char(es, charW);
800 break;
801 }
802
803 case WM_CLEAR:
804 EDIT_WM_Clear(es);
805 break;
806
807 case WM_COMMAND:
808 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
809 break;
810
811 case WM_CONTEXTMENU:
812 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
813 break;
814
815 case WM_COPY:
816 EDIT_WM_Copy(es);
817 break;
818
819 case WM_CREATE:
820 if(unicode)
821 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
822 else
823 {
824 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
825 LPWSTR nameW = NULL;
826 if(nameA)
827 {
828 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
829 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
830 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
831 }
832 result = EDIT_WM_Create(es, nameW);
833 if(nameW)
834 HeapFree(GetProcessHeap(), 0, nameW);
835 }
836 break;
837
838 case WM_CUT:
839 EDIT_WM_Cut(es);
840 break;
841
842 case WM_ENABLE:
843 es->bEnableState = (BOOL) wParam;
844 EDIT_UpdateText(es, NULL, TRUE);
845 break;
846
847 case WM_ERASEBKGND:
848 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
849 break;
850
851 case WM_GETFONT:
852 result = (LRESULT)es->font;
853 break;
854
855 case WM_GETTEXT:
856 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
857 break;
858
859 case WM_GETTEXTLENGTH:
860 if (unicode) result = strlenW(es->text);
861 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
862 NULL, 0, NULL, NULL );
863 break;
864
865 case WM_HSCROLL:
866 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
867 break;
868
869 case WM_KEYDOWN:
870 result = EDIT_WM_KeyDown(es, (INT)wParam);
871 break;
872
873 case WM_KILLFOCUS:
874 result = EDIT_WM_KillFocus(es);
875 break;
876
877 case WM_LBUTTONDBLCLK:
878 result = EDIT_WM_LButtonDblClk(es);
879 break;
880
881 case WM_LBUTTONDOWN:
882 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
883 break;
884
885 case WM_LBUTTONUP:
886 result = EDIT_WM_LButtonUp(es);
887 break;
888
889 case WM_MBUTTONDOWN:
890 result = EDIT_WM_MButtonDown(es);
891 break;
892
893 case WM_MOUSEACTIVATE:
894 result = MA_ACTIVATE;
895 break;
896
897 case WM_MOUSEMOVE:
898 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
899 break;
900
901 case WM_PAINT:
902 EDIT_WM_Paint(es, wParam);
903 break;
904
905 case WM_PASTE:
906 EDIT_WM_Paste(es);
907 break;
908
909 case WM_SETFOCUS:
910 EDIT_WM_SetFocus(es);
911 break;
912
913 case WM_SETFONT:
914 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
915 break;
916
917 case WM_SETREDRAW:
918 /* FIXME: actually set an internal flag and behave accordingly */
919 break;
920
921 case WM_SETTEXT:
922 EDIT_WM_SetText(es, lParam, unicode);
923 result = TRUE;
924 break;
925
926 case WM_SIZE:
927 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
928 break;
929
930 case WM_STYLECHANGED:
931 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
932 break;
933
934 case WM_STYLECHANGING:
935 result = 0; /* See EDIT_WM_StyleChanged */
936 break;
937
938 case WM_SYSKEYDOWN:
939 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
940 break;
941
942 case WM_TIMER:
943 EDIT_WM_Timer(es);
944 break;
945
946 case WM_VSCROLL:
947 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
948 break;
949
950 case WM_MOUSEWHEEL:
951 {
952 int gcWheelDelta = 0;
953 UINT pulScrollLines = 3;
954 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
955
956 if (wParam & (MK_SHIFT | MK_CONTROL)) {
957 result = DefWindowProcW(hwnd, msg, wParam, lParam);
958 break;
959 }
960 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
961 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
962 {
963 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
964 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
965 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
966 }
967 }
968 break;
969 default:
970 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
971 break;
972 }
973
974 if (es) EDIT_UnlockBuffer(es, FALSE);
975
976 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
977
978 return result;
979 }
980
981 /*********************************************************************
982 *
983 * EditWndProcW (USER32.@)
984 */
985 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
986 {
987 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
988 }
989
990 /*********************************************************************
991 *
992 * EditWndProc (USER32.@)
993 */
994 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
995 {
996 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
997 }
998
999 /*********************************************************************
1000 *
1001 * EDIT_BuildLineDefs_ML
1002 *
1003 * Build linked list of text lines.
1004 * Lines can end with '\0' (last line), a character (if it is wrapped),
1005 * a soft return '\r\r\n' or a hard return '\r\n'
1006 *
1007 */
1008 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1009 {
1010 HDC dc;
1011 HFONT old_font = 0;
1012 LPWSTR current_position, cp;
1013 INT fw;
1014 LINEDEF *current_line;
1015 LINEDEF *previous_line;
1016 LINEDEF *start_line;
1017 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1018 INT line_count = es->line_count;
1019 INT orig_net_length;
1020 RECT rc;
1021
1022 if (istart == iend && delta == 0)
1023 return;
1024
1025 dc = GetDC(es->hwndSelf);
1026 if (es->font)
1027 old_font = SelectObject(dc, es->font);
1028
1029 previous_line = NULL;
1030 current_line = es->first_line_def;
1031
1032 /* Find starting line. istart must lie inside an existing line or
1033 * at the end of buffer */
1034 do {
1035 if (istart < current_line->index + current_line->length ||
1036 current_line->ending == END_0)
1037 break;
1038
1039 previous_line = current_line;
1040 current_line = current_line->next;
1041 line_index++;
1042 } while (current_line);
1043
1044 if (!current_line) /* Error occurred start is not inside previous buffer */
1045 {
1046 FIXME(" modification occurred outside buffer\n");
1047 ReleaseDC(es->hwndSelf, dc);
1048 return;
1049 }
1050
1051 /* Remember start of modifications in order to calculate update region */
1052 nstart_line = line_index;
1053 nstart_index = current_line->index;
1054
1055 /* We must start to reformat from the previous line since the modifications
1056 * may have caused the line to wrap upwards. */
1057 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1058 {
1059 line_index--;
1060 current_line = previous_line;
1061 }
1062 start_line = current_line;
1063
1064 fw = es->format_rect.right - es->format_rect.left;
1065 current_position = es->text + current_line->index;
1066 do {
1067 if (current_line != start_line)
1068 {
1069 if (!current_line || current_line->index + delta > current_position - es->text)
1070 {
1071 /* The buffer has been expanded, create a new line and
1072 insert it into the link list */
1073 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1074 new_line->next = previous_line->next;
1075 previous_line->next = new_line;
1076 current_line = new_line;
1077 es->line_count++;
1078 }
1079 else if (current_line->index + delta < current_position - es->text)
1080 {
1081 /* The previous line merged with this line so we delete this extra entry */
1082 previous_line->next = current_line->next;
1083 HeapFree(GetProcessHeap(), 0, current_line);
1084 current_line = previous_line->next;
1085 es->line_count--;
1086 continue;
1087 }
1088 else /* current_line->index + delta == current_position */
1089 {
1090 if (current_position - es->text > iend)
1091 break; /* We reached end of line modifications */
1092 /* else recalulate this line */
1093 }
1094 }
1095
1096 current_line->index = current_position - es->text;
1097 orig_net_length = current_line->net_length;
1098
1099 /* Find end of line */
1100 cp = current_position;
1101 while (*cp) {
1102 if (*cp == '\n') break;
1103 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1104 break;
1105 cp++;
1106 }
1107
1108 /* Mark type of line termination */
1109 if (!(*cp)) {
1110 current_line->ending = END_0;
1111 current_line->net_length = strlenW(current_position);
1112 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1113 current_line->ending = END_SOFT;
1114 current_line->net_length = cp - current_position - 1;
1115 } else if (*cp == '\n') {
1116 current_line->ending = END_RICH;
1117 current_line->net_length = cp - current_position;
1118 } else {
1119 current_line->ending = END_HARD;
1120 current_line->net_length = cp - current_position;
1121 }
1122
1123 /* Calculate line width */
1124 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1125 current_position, current_line->net_length,
1126 es->tabs_count, es->tabs));
1127
1128 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1129 if (!(es->style & ES_AUTOHSCROLL)) {
1130 if (current_line->width > fw) {
1131 INT next = 0;
1132 INT prev;
1133 do {
1134 prev = next;
1135 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1136 prev + 1, current_line->net_length, WB_RIGHT);
1137 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1138 current_position, next, es->tabs_count, es->tabs));
1139 } while (current_line->width <= fw);
1140 if (!prev) { /* Didn't find a line break so force a break */
1141 next = 0;
1142 do {
1143 prev = next;
1144 next++;
1145 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1146 current_position, next, es->tabs_count, es->tabs));
1147 } while (current_line->width <= fw);
1148 if (!prev)
1149 prev = 1;
1150 }
1151
1152 /* If the first line we are calculating, wrapped before istart, we must
1153 * adjust istart in order for this to be reflected in the update region. */
1154 if (current_line->index == nstart_index && istart > current_line->index + prev)
1155 istart = current_line->index + prev;
1156 /* else if we are updating the previous line before the first line we
1157 * are re-calculating and it expanded */
1158 else if (current_line == start_line &&
1159 current_line->index != nstart_index && orig_net_length < prev)
1160 {
1161 /* Line expanded due to an upwards line wrap so we must partially include
1162 * previous line in update region */
1163 nstart_line = line_index;
1164 nstart_index = current_line->index;
1165 istart = current_line->index + orig_net_length;
1166 }
1167
1168 current_line->net_length = prev;
1169 current_line->ending = END_WRAP;
1170 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1171 current_line->net_length, es->tabs_count, es->tabs));
1172 }
1173 else if (orig_net_length < current_line->net_length &&
1174 current_line == start_line &&
1175 current_line->index != nstart_index) {
1176 /* The previous line expanded but it's still not as wide as the client rect */
1177 /* The expansion is due to an upwards line wrap so we must partially include
1178 it in the update region */
1179 nstart_line = line_index;
1180 nstart_index = current_line->index;
1181 istart = current_line->index + orig_net_length;
1182 }
1183 }
1184
1185
1186 /* Adjust length to include line termination */
1187 switch (current_line->ending) {
1188 case END_SOFT:
1189 current_line->length = current_line->net_length + 3;
1190 break;
1191 case END_RICH:
1192 current_line->length = current_line->net_length + 1;
1193 break;
1194 case END_HARD:
1195 current_line->length = current_line->net_length + 2;
1196 break;
1197 case END_WRAP:
1198 case END_0:
1199 current_line->length = current_line->net_length;
1200 break;
1201 }
1202 es->text_width = max(es->text_width, current_line->width);
1203 current_position += current_line->length;
1204 previous_line = current_line;
1205 current_line = current_line->next;
1206 line_index++;
1207 } while (previous_line->ending != END_0);
1208
1209 /* Finish adjusting line indexes by delta or remove hanging lines */
1210 if (previous_line->ending == END_0)
1211 {
1212 LINEDEF *pnext = NULL;
1213
1214 previous_line->next = NULL;
1215 while (current_line)
1216 {
1217 pnext = current_line->next;
1218 HeapFree(GetProcessHeap(), 0, current_line);
1219 current_line = pnext;
1220 es->line_count--;
1221 }
1222 }
1223 else
1224 {
1225 while (current_line)
1226 {
1227 current_line->index += delta;
1228 current_line = current_line->next;
1229 }
1230 }
1231
1232 /* Calculate rest of modification rectangle */
1233 if (hrgn)
1234 {
1235 HRGN tmphrgn;
1236 /*
1237 * We calculate two rectangles. One for the first line which may have
1238 * an indent with respect to the format rect. The other is a format-width
1239 * rectangle that spans the rest of the lines that changed or moved.
1240 */
1241 rc.top = es->format_rect.top + nstart_line * es->line_height -
1242 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1243 rc.bottom = rc.top + es->line_height;
1244 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1245 es->text + nstart_index, istart - nstart_index,
1246 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1247 rc.right = es->format_rect.right;
1248 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1249
1250 rc.top = rc.bottom;
1251 rc.left = es->format_rect.left;
1252 rc.right = es->format_rect.right;
1253 /*
1254 * If lines were added or removed we must re-paint the remainder of the
1255 * lines since the remaining lines were either shifted up or down.
1256 */
1257 if (line_count < es->line_count) /* We added lines */
1258 rc.bottom = es->line_count * es->line_height;
1259 else if (line_count > es->line_count) /* We removed lines */
1260 rc.bottom = line_count * es->line_height;
1261 else
1262 rc.bottom = line_index * es->line_height;
1263 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1264 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1265 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1266 DeleteObject(tmphrgn);
1267 }
1268
1269 if (es->font)
1270 SelectObject(dc, old_font);
1271
1272 ReleaseDC(es->hwndSelf, dc);
1273 }
1274
1275 /*********************************************************************
1276 *
1277 * EDIT_CalcLineWidth_SL
1278 *
1279 */
1280 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1281 {
1282 es->text_width = (short)LOWORD(EDIT_EM_PosFromChar(es, strlenW(es->text), FALSE));
1283 }
1284
1285 /*********************************************************************
1286 *
1287 * EDIT_CallWordBreakProc
1288 *
1289 * Call appropriate WordBreakProc (internal or external).
1290 *
1291 * Note: The "start" argument should always be an index referring
1292 * to es->text. The actual wordbreak proc might be
1293 * 16 bit, so we can't always pass any 32 bit LPSTR.
1294 * Hence we assume that es->text is the buffer that holds
1295 * the string under examination (we can decide this for ourselves).
1296 *
1297 */
1298 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1299 {
1300 INT ret, iWndsLocks;
1301
1302 /* To avoid any deadlocks, all the locks on the window structures
1303 must be suspended before the control is passed to the application */
1304 iWndsLocks = WIN_SuspendWndsLock();
1305
1306 if (es->word_break_proc16) {
1307 HGLOBAL16 hglob16;
1308 SEGPTR segptr;
1309 INT countA;
1310 WORD args[5];
1311 DWORD result;
1312
1313 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1314 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1315 segptr = K32WOWGlobalLock16(hglob16);
1316 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1317 args[4] = SELECTOROF(segptr);
1318 args[3] = OFFSETOF(segptr);
1319 args[2] = index;
1320 args[1] = countA;
1321 args[0] = action;
1322 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1323 ret = LOWORD(result);
1324 GlobalUnlock16(hglob16);
1325 GlobalFree16(hglob16);
1326 }
1327 else if (es->word_break_proc)
1328 {
1329 if(es->is_unicode)
1330 {
1331 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1332
1333 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1334 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1335 ret = wbpW(es->text + start, index, count, action);
1336 }
1337 else
1338 {
1339 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1340 INT countA;
1341 CHAR *textA;
1342
1343 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1344 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1345 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1346 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1347 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1348 ret = wbpA(textA, index, countA, action);
1349 HeapFree(GetProcessHeap(), 0, textA);
1350 }
1351 }
1352 else
1353 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1354
1355 WIN_RestoreWndsLock(iWndsLocks);
1356 return ret;
1357 }
1358
1359
1360 /*********************************************************************
1361 *
1362 * EDIT_CharFromPos
1363 *
1364 * Beware: This is not the function called on EM_CHARFROMPOS
1365 * The position _can_ be outside the formatting / client
1366 * rectangle
1367 * The return value is only the character index
1368 *
1369 */
1370 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1371 {
1372 INT index;
1373 HDC dc;
1374 HFONT old_font = 0;
1375
1376 if (es->style & ES_MULTILINE) {
1377 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1378 INT line_index = 0;
1379 LINEDEF *line_def = es->first_line_def;
1380 INT low, high;
1381 while ((line > 0) && line_def->next) {
1382 line_index += line_def->length;
1383 line_def = line_def->next;
1384 line--;
1385 }
1386 x += es->x_offset - es->format_rect.left;
1387 if (x >= line_def->width) {
1388 if (after_wrap)
1389 *after_wrap = (line_def->ending == END_WRAP);
1390 return line_index + line_def->net_length;
1391 }
1392 if (x <= 0) {
1393 if (after_wrap)
1394 *after_wrap = FALSE;
1395 return line_index;
1396 }
1397 dc = GetDC(es->hwndSelf);
1398 if (es->font)
1399 old_font = SelectObject(dc, es->font);
1400 low = line_index + 1;
1401 high = line_index + line_def->net_length + 1;
1402 while (low < high - 1)
1403 {
1404 INT mid = (low + high) / 2;
1405 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1406 else low = mid;
1407 }
1408 index = low;
1409
1410 if (after_wrap)
1411 *after_wrap = ((index == line_index + line_def->net_length) &&
1412 (line_def->ending == END_WRAP));
1413 } else {
1414 LPWSTR text;
1415 SIZE size;
1416 if (after_wrap)
1417 *after_wrap = FALSE;
1418 x -= es->format_rect.left;
1419 if (!x)
1420 return es->x_offset;
1421 text = EDIT_GetPasswordPointer_SL(es);
1422 dc = GetDC(es->hwndSelf);
1423 if (es->font)
1424 old_font = SelectObject(dc, es->font);
1425 if (x < 0)
1426 {
1427 INT low = 0;
1428 INT high = es->x_offset;
1429 while (low < high - 1)
1430 {
1431 INT mid = (low + high) / 2;
1432 GetTextExtentPoint32W( dc, text + mid,
1433 es->x_offset - mid, &size );
1434 if (size.cx > -x) low = mid;
1435 else high = mid;
1436 }
1437 index = low;
1438 }
1439 else
1440 {
1441 INT low = es->x_offset;
1442 INT high = strlenW(es->text) + 1;
1443 while (low < high - 1)
1444 {
1445 INT mid = (low + high) / 2;
1446 GetTextExtentPoint32W( dc, text + es->x_offset,
1447 mid - es->x_offset, &size );
1448 if (size.cx > x) high = mid;
1449 else low = mid;
1450 }
1451 index = low;
1452 }
1453 if (es->style & ES_PASSWORD)
1454 HeapFree(GetProcessHeap(), 0, text);
1455 }
1456 if (es->font)
1457 SelectObject(dc, old_font);
1458 ReleaseDC(es->hwndSelf, dc);
1459 return index;
1460 }
1461
1462
1463 /*********************************************************************
1464 *
1465 * EDIT_ConfinePoint
1466 *
1467 * adjusts the point to be within the formatting rectangle
1468 * (so CharFromPos returns the nearest _visible_ character)
1469 *
1470 */
1471 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1472 {
1473 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1474 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1475 }
1476
1477
1478 /*********************************************************************
1479 *
1480 * EDIT_GetLineRect
1481 *
1482 * Calculates the bounding rectangle for a line from a starting
1483 * column to an ending column.
1484 *
1485 */
1486 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1487 {
1488 INT line_index = EDIT_EM_LineIndex(es, line);
1489
1490 if (es->style & ES_MULTILINE)
1491 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1492 else
1493 rc->top = es->format_rect.top;
1494 rc->bottom = rc->top + es->line_height;
1495 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1496 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1497 }
1498
1499
1500 /*********************************************************************
1501 *
1502 * EDIT_GetPasswordPointer_SL
1503 *
1504 * note: caller should free the (optionally) allocated buffer
1505 *
1506 */
1507 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1508 {
1509 if (es->style & ES_PASSWORD) {
1510 INT len = strlenW(es->text);
1511 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1512 text[len] = '\0';
1513 while(len) text[--len] = es->password_char;
1514 return text;
1515 } else
1516 return es->text;
1517 }
1518
1519
1520 /*********************************************************************
1521 *
1522 * EDIT_LockBuffer
1523 *
1524 * This acts as a LOCAL_Lock(), but it locks only once. This way
1525 * you can call it whenever you like, without unlocking.
1526 *
1527 * Initially the edit control allocates a HLOCAL32 buffer
1528 * (32 bit linear memory handler). However, 16 bit application
1529 * might send a EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1530 * handler). From that moment on we have to keep using this 16 bit memory
1531 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1532 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1533 * conversion.
1534 *
1535 */
1536 static void EDIT_LockBuffer(EDITSTATE *es)
1537 {
1538 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
1539 if (!es->text) {
1540 CHAR *textA = NULL;
1541 UINT countA = 0;
1542 BOOL _16bit = FALSE;
1543
1544 if(es->hloc32W)
1545 {
1546 if(es->hloc32A)
1547 {
1548 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1549 textA = LocalLock(es->hloc32A);
1550 countA = strlen(textA) + 1;
1551 }
1552 else if(es->hloc16)
1553 {
1554 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1555 textA = LOCAL_Lock(hInstance, es->hloc16);
1556 countA = strlen(textA) + 1;
1557 _16bit = TRUE;
1558 }
1559 }
1560 else {
1561 ERR("no buffer ... please report\n");
1562 return;
1563 }
1564
1565 if(textA)
1566 {
1567 HLOCAL hloc32W_new;
1568 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1569 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1570 if(countW_new > es->buffer_size + 1)
1571 {
1572 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1573 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1574 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1575 if(hloc32W_new)
1576 {
1577 es->hloc32W = hloc32W_new;
1578 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1579 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1580 }
1581 else
1582 WARN("FAILED! Will synchronize partially\n");
1583 }
1584 }
1585
1586 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1587 es->text = LocalLock(es->hloc32W);
1588
1589 if(textA)
1590 {
1591 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1592 if(_16bit)
1593 LOCAL_Unlock(hInstance, es->hloc16);
1594 else
1595 LocalUnlock(es->hloc32A);
1596 }
1597 }
1598 es->lock_count++;
1599 }
1600
1601
1602 /*********************************************************************
1603 *
1604 * EDIT_SL_InvalidateText
1605 *
1606 * Called from EDIT_InvalidateText().
1607 * Does the job for single-line controls only.
1608 *
1609 */
1610 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1611 {
1612 RECT line_rect;
1613 RECT rc;
1614
1615 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1616 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1617 EDIT_UpdateText(es, &rc, TRUE);
1618 }
1619
1620
1621 /*********************************************************************
1622 *
1623 * EDIT_ML_InvalidateText
1624 *
1625 * Called from EDIT_InvalidateText().
1626 * Does the job for multi-line controls only.
1627 *
1628 */
1629 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1630 {
1631 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1632 INT sl = EDIT_EM_LineFromChar(es, start);
1633 INT el = EDIT_EM_LineFromChar(es, end);
1634 INT sc;
1635 INT ec;
1636 RECT rc1;
1637 RECT rcWnd;
1638 RECT rcLine;
1639 RECT rcUpdate;
1640 INT l;
1641
1642 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1643 return;
1644
1645 sc = start - EDIT_EM_LineIndex(es, sl);
1646 ec = end - EDIT_EM_LineIndex(es, el);
1647 if (sl < es->y_offset) {
1648 sl = es->y_offset;
1649 sc = 0;
1650 }
1651 if (el > es->y_offset + vlc) {
1652 el = es->y_offset + vlc;
1653 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1654 }
1655 GetClientRect(es->hwndSelf, &rc1);
1656 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1657 if (sl == el) {
1658 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1659 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1660 EDIT_UpdateText(es, &rcUpdate, TRUE);
1661 } else {
1662 EDIT_GetLineRect(es, sl, sc,
1663 EDIT_EM_LineLength(es,
1664 EDIT_EM_LineIndex(es, sl)),
1665 &rcLine);
1666 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1667 EDIT_UpdateText(es, &rcUpdate, TRUE);
1668 for (l = sl + 1 ; l < el ; l++) {
1669 EDIT_GetLineRect(es, l, 0,
1670 EDIT_EM_LineLength(es,
1671 EDIT_EM_LineIndex(es, l)),
1672 &rcLine);
1673 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1674 EDIT_UpdateText(es, &rcUpdate, TRUE);
1675 }
1676 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1677 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1678 EDIT_UpdateText(es, &rcUpdate, TRUE);
1679 }
1680 }
1681
1682
1683 /*********************************************************************
1684 *
1685 * EDIT_InvalidateText
1686 *
1687 * Invalidate the text from offset start upto, but not including,
1688 * offset end. Useful for (re)painting the selection.
1689 * Regions outside the linewidth are not invalidated.
1690 * end == -1 means end == TextLength.
1691 * start and end need not be ordered.
1692 *
1693 */
1694 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1695 {
1696 if (end == start)
1697 return;
1698
1699 if (end == -1)
1700 end = strlenW(es->text);
1701
1702 if (end < start) {
1703 INT tmp = start;
1704 start = end;
1705 end = tmp;
1706 }
1707
1708 if (es->style & ES_MULTILINE)
1709 EDIT_ML_InvalidateText(es, start, end);
1710 else
1711 EDIT_SL_InvalidateText(es, start, end);
1712 }
1713
1714
1715 /*********************************************************************
1716 *
1717 * EDIT_MakeFit
1718 *
1719 * Try to fit size + 1 characters in the buffer.
1720 */
1721 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1722 {
1723 HLOCAL hNew32W;
1724
1725 if (size <= es->buffer_size)
1726 return TRUE;
1727
1728 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1729
1730 /* Force edit to unlock it's buffer. es->text now NULL */
1731 EDIT_UnlockBuffer(es, TRUE);
1732
1733 if (es->hloc32W) {
1734 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1735 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1736 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1737 es->hloc32W = hNew32W;
1738 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1739 }
1740 }
1741
1742 EDIT_LockBuffer(es);
1743
1744 if (es->buffer_size < size) {
1745 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1746 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1747 return FALSE;
1748 } else {
1749 TRACE("We now have %d+1\n", es->buffer_size);
1750 return TRUE;
1751 }
1752 }
1753
1754
1755 /*********************************************************************
1756 *
1757 * EDIT_MakeUndoFit
1758 *
1759 * Try to fit size + 1 bytes in the undo buffer.
1760 *
1761 */
1762 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1763 {
1764 UINT alloc_size;
1765
1766 if (size <= es->undo_buffer_size)
1767 return TRUE;
1768
1769 TRACE("trying to ReAlloc to %d+1\n", size);
1770
1771 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1772 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1773 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1774 return TRUE;
1775 }
1776 else
1777 {
1778 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1779 return FALSE;
1780 }
1781 }
1782
1783
1784 /*********************************************************************
1785 *
1786 * EDIT_MoveBackward
1787 *
1788 */
1789 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1790 {
1791 INT e = es->selection_end;
1792
1793 if (e) {
1794 e--;
1795 if ((es->style & ES_MULTILINE) && e &&
1796 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1797 e--;
1798 if (e && (es->text[e - 1] == '\r'))
1799 e--;
1800 }
1801 }
1802 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1803 EDIT_EM_ScrollCaret(es);
1804 }
1805
1806
1807 /*********************************************************************
1808 *
1809 * EDIT_MoveDown_ML
1810 *
1811 * Only for multi line controls
1812 * Move the caret one line down, on a column with the nearest
1813 * x coordinate on the screen (might be a different column).
1814 *
1815 */
1816 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1817 {
1818 INT s = es->selection_start;
1819 INT e = es->selection_end;
1820 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1821 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1822 INT x = (short)LOWORD(pos);
1823 INT y = (short)HIWORD(pos);
1824
1825 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1826 if (!extend)
1827 s = e;
1828 EDIT_EM_SetSel(es, s, e, after_wrap);
1829 EDIT_EM_ScrollCaret(es);
1830 }
1831
1832
1833 /*********************************************************************
1834 *
1835 * EDIT_MoveEnd
1836 *
1837 */
1838 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1839 {
1840 BOOL after_wrap = FALSE;
1841 INT e;
1842
1843 /* Pass a high value in x to make sure of receiving the end of the line */
1844 if (es->style & ES_MULTILINE)
1845 e = EDIT_CharFromPos(es, 0x3fffffff,
1846 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1847 else
1848 e = strlenW(es->text);
1849 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1850 EDIT_EM_ScrollCaret(es);
1851 }
1852
1853
1854 /*********************************************************************
1855 *
1856 * EDIT_MoveForward
1857 *
1858 */
1859 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1860 {
1861 INT e = es->selection_end;
1862
1863 if (es->text[e]) {
1864 e++;
1865 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1866 if (es->text[e] == '\n')
1867 e++;
1868 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1869 e += 2;
1870 }
1871 }
1872 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1873 EDIT_EM_ScrollCaret(es);
1874 }
1875
1876
1877 /*********************************************************************
1878 *
1879 * EDIT_MoveHome
1880 *
1881 * Home key: move to beginning of line.
1882 *
1883 */
1884 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1885 {
1886 INT e;
1887
1888 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1889 if (es->style & ES_MULTILINE)
1890 e = EDIT_CharFromPos(es, -es->x_offset,
1891 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1892 else
1893 e = 0;
1894 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1895 EDIT_EM_ScrollCaret(es);
1896 }
1897
1898
1899 /*********************************************************************
1900 *
1901 * EDIT_MovePageDown_ML
1902 *
1903 * Only for multi line controls
1904 * Move the caret one page down, on a column with the nearest
1905 * x coordinate on the screen (might be a different column).
1906 *
1907 */
1908 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1909 {
1910 INT s = es->selection_start;
1911 INT e = es->selection_end;
1912 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1913 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1914 INT x = (short)LOWORD(pos);
1915 INT y = (short)HIWORD(pos);
1916
1917 e = EDIT_CharFromPos(es, x,
1918 y + (es->format_rect.bottom - es->format_rect.top),
1919 &after_wrap);
1920 if (!extend)
1921 s = e;
1922 EDIT_EM_SetSel(es, s, e, after_wrap);
1923 EDIT_EM_ScrollCaret(es);
1924 }
1925
1926
1927 /*********************************************************************
1928 *
1929 * EDIT_MovePageUp_ML
1930 *
1931 * Only for multi line controls
1932 * Move the caret one page up, on a column with the nearest
1933 * x coordinate on the screen (might be a different column).
1934 *
1935 */
1936 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1937 {
1938 INT s = es->selection_start;
1939 INT e = es->selection_end;
1940 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1941 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1942 INT x = (short)LOWORD(pos);
1943 INT y = (short)HIWORD(pos);
1944
1945 e = EDIT_CharFromPos(es, x,
1946 y - (es->format_rect.bottom - es->format_rect.top),
1947 &after_wrap);
1948 if (!extend)
1949 s = e;
1950 EDIT_EM_SetSel(es, s, e, after_wrap);
1951 EDIT_EM_ScrollCaret(es);
1952 }
1953
1954
1955 /*********************************************************************
1956 *
1957 * EDIT_MoveUp_ML
1958 *
1959 * Only for multi line controls
1960 * Move the caret one line up, on a column with the nearest
1961 * x coordinate on the screen (might be a different column).
1962 *
1963 */
1964 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1965 {
1966 INT s = es->selection_start;
1967 INT e = es->selection_end;
1968 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1969 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1970 INT x = (short)LOWORD(pos);
1971 INT y = (short)HIWORD(pos);
1972
1973 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1974 if (!extend)
1975 s = e;
1976 EDIT_EM_SetSel(es, s, e, after_wrap);
1977 EDIT_EM_ScrollCaret(es);
1978 }
1979
1980
1981 /*********************************************************************
1982 *
1983 * EDIT_MoveWordBackward
1984 *
1985 */
1986 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1987 {
1988 INT s = es->selection_start;
1989 INT e = es->selection_end;
1990 INT l;
1991 INT ll;
1992 INT li;
1993
1994 l = EDIT_EM_LineFromChar(es, e);
1995 ll = EDIT_EM_LineLength(es, e);
1996 li = EDIT_EM_LineIndex(es, l);
1997 if (e - li == 0) {
1998 if (l) {
1999 li = EDIT_EM_LineIndex(es, l - 1);
2000 e = li + EDIT_EM_LineLength(es, li);
2001 }
2002 } else {
2003 e = li + (INT)EDIT_CallWordBreakProc(es,
2004 li, e - li, ll, WB_LEFT);
2005 }
2006 if (!extend)
2007 s = e;
2008 EDIT_EM_SetSel(es, s, e, FALSE);
2009 EDIT_EM_ScrollCaret(es);
2010 }
2011
2012
2013 /*********************************************************************
2014 *
2015 * EDIT_MoveWordForward
2016 *
2017 */
2018 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2019 {
2020 INT s = es->selection_start;
2021 INT e = es->selection_end;
2022 INT l;
2023 INT ll;
2024 INT li;
2025
2026 l = EDIT_EM_LineFromChar(es, e);
2027 ll = EDIT_EM_LineLength(es, e);
2028 li = EDIT_EM_LineIndex(es, l);
2029 if (e - li == ll) {
2030 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2031 e = EDIT_EM_LineIndex(es, l + 1);
2032 } else {
2033 e = li + EDIT_CallWordBreakProc(es,
2034 li, e - li + 1, ll, WB_RIGHT);
2035 }
2036 if (!extend)
2037 s = e;
2038 EDIT_EM_SetSel(es, s, e, FALSE);
2039 EDIT_EM_ScrollCaret(es);
2040 }
2041
2042
2043 /*********************************************************************
2044 *
2045 * EDIT_PaintLine
2046 *
2047 */
2048 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2049 {
2050 INT s = es->selection_start;
2051 INT e = es->selection_end;
2052 INT li;
2053 INT ll;
2054 INT x;
2055 INT y;
2056 LRESULT pos;
2057
2058 if (es->style & ES_MULTILINE) {
2059 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2060 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2061 return;
2062 } else if (line)
2063 return;
2064
2065 TRACE("line=%d\n", line);
2066
2067 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2068 x = (short)LOWORD(pos);
2069 y = (short)HIWORD(pos);
2070 li = EDIT_EM_LineIndex(es, line);
2071 ll = EDIT_EM_LineLength(es, li);
2072 s = min(es->selection_start, es->selection_end);
2073 e = max(es->selection_start, es->selection_end);
2074 s = min(li + ll, max(li, s));
2075 e = min(li + ll, max(li, e));
2076 if (rev && (s != e) &&
2077 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2078 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2079 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2080 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2081 } else
2082 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2083 }
2084
2085
2086 /*********************************************************************
2087 *
2088 * EDIT_PaintText
2089 *
2090 */
2091 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2092 {
2093 COLORREF BkColor;
2094 COLORREF TextColor;
2095 INT ret;
2096 INT li;
2097 INT BkMode;
2098 SIZE size;
2099
2100 if (!count)
2101 return 0;
2102 BkMode = GetBkMode(dc);
2103 BkColor = GetBkColor(dc);
2104 TextColor = GetTextColor(dc);
2105 if (rev) {
2106 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2107 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2108 SetBkMode( dc, OPAQUE);
2109 }
2110 li = EDIT_EM_LineIndex(es, line);
2111 if (es->style & ES_MULTILINE) {
2112 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2113 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2114 } else {
2115 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2116 TextOutW(dc, x, y, text + li + col, count);
2117 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2118 ret = size.cx;
2119 if (es->style & ES_PASSWORD)
2120 HeapFree(GetProcessHeap(), 0, text);
2121 }
2122 if (rev) {
2123 SetBkColor(dc, BkColor);
2124 SetTextColor(dc, TextColor);
2125 SetBkMode( dc, BkMode);
2126 }
2127 return ret;
2128 }
2129
2130
2131 /*********************************************************************
2132 *
2133 * EDIT_SetCaretPos
2134 *
2135 */
2136 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2137 BOOL after_wrap)
2138 {
2139 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2140 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2141 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2142 }
2143
2144
2145 /*********************************************************************
2146 *
2147 * EDIT_SetRectNP
2148 *
2149 * note: this is not (exactly) the handler called on EM_SETRECTNP
2150 * it is also used to set the rect of a single line control
2151 *
2152 */
2153 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2154 {
2155 CopyRect(&es->format_rect, rc);
2156 if (es->style & WS_BORDER) {
2157 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2158 es->format_rect.left += bw;
2159 es->format_rect.top += bw;
2160 es->format_rect.right -= bw;
2161 es->format_rect.bottom -= bw;
2162 }
2163 es->format_rect.left += es->left_margin;
2164 es->format_rect.right -= es->right_margin;
2165 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2166 if (es->style & ES_MULTILINE)
2167 {
2168 INT fw, vlc, max_x_offset, max_y_offset;
2169
2170 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2171 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2172
2173 /* correct es->x_offset */
2174 fw = es->format_rect.right - es->format_rect.left;
2175 max_x_offset = es->text_width - fw;
2176 if(max_x_offset < 0) max_x_offset = 0;
2177 if(es->x_offset > max_x_offset)
2178 es->x_offset = max_x_offset;
2179
2180 /* correct es->y_offset */
2181 max_y_offset = es->line_count - vlc;
2182 if(max_y_offset < 0) max_y_offset = 0;
2183 if(es->y_offset > max_y_offset)
2184 es->y_offset = max_y_offset;
2185
2186 /* force scroll info update */
2187 EDIT_UpdateScrollInfo(es);
2188 }
2189 else
2190 /* Windows doesn't care to fix text placement for SL controls */
2191 es->format_rect.bottom = es->format_rect.top + es->line_height;
2192
2193 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2194 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2195 }
2196
2197
2198 /*********************************************************************
2199 *
2200 * EDIT_UnlockBuffer
2201 *
2202 */
2203 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2204 {
2205 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2206
2207 /* Edit window might be already destroyed */
2208 if(!IsWindow(es->hwndSelf))
2209 {
2210 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2211 return;
2212 }
2213
2214 if (!es->lock_count) {
2215 ERR("lock_count == 0 ... please report\n");
2216 return;
2217 }
2218 if (!es->text) {
2219 ERR("es->text == 0 ... please report\n");
2220 return;
2221 }
2222
2223 if (force || (es->lock_count == 1)) {
2224 if (es->hloc32W) {
2225 CHAR *textA = NULL;
2226 BOOL _16bit = FALSE;
2227 UINT countA = 0;
2228 UINT countW = strlenW(es->text) + 1;
2229
2230 if(es->hloc32A)
2231 {
2232 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2233 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2234 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2235 countA = LocalSize(es->hloc32A);
2236 if(countA_new > countA)
2237 {
2238 HLOCAL hloc32A_new;
2239 UINT alloc_size = ROUND_TO_GROW(countA_new);
2240 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2241 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2242 if(hloc32A_new)
2243 {
2244 es->hloc32A = hloc32A_new;
2245 countA = LocalSize(hloc32A_new);
2246 TRACE("Real new size %d bytes\n", countA);
2247 }
2248 else
2249 WARN("FAILED! Will synchronize partially\n");
2250 }
2251 textA = LocalLock(es->hloc32A);
2252 }
2253 else if(es->hloc16)
2254 {
2255 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2256 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2257 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2258 countA = LOCAL_Size(hInstance, es->hloc16);
2259 if(countA_new > countA)
2260 {
2261 HLOCAL16 hloc16_new;
2262 UINT alloc_size = ROUND_TO_GROW(countA_new);
2263 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2264 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2265 if(hloc16_new)
2266 {
2267 es->hloc16 = hloc16_new;
2268 countA = LOCAL_Size(hInstance, hloc16_new);
2269 TRACE("Real new size %d bytes\n", countA);
2270 }
2271 else
2272 WARN("FAILED! Will synchronize partially\n");
2273 }
2274 textA = LOCAL_Lock(hInstance, es->hloc16);
2275 _16bit = TRUE;
2276 }
2277
2278 if(textA)
2279 {
2280 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2281 if(_16bit)
2282 LOCAL_Unlock(hInstance, es->hloc16);
2283 else
2284 LocalUnlock(es->hloc32A);
2285 }
2286
2287 LocalUnlock(es->hloc32W);
2288 es->text = NULL;
2289 }
2290 else {
2291 ERR("no buffer ... please report\n");
2292 return;
2293 }
2294 }
2295 es->lock_count--;
2296 }
2297
2298
2299 /*********************************************************************
2300 *
2301 * EDIT_UpdateScrollInfo
2302 *
2303 */
2304 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2305 {
2306 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2307 {
2308 SCROLLINFO si;
2309 si.cbSize = sizeof(SCROLLINFO);
2310 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2311 si.nMin = 0;
2312 si.nMax = es->line_count - 1;
2313 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2314 si.nPos = es->y_offset;
2315 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2316 si.nMin, si.nMax, si.nPage, si.nPos);
2317 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2318 }
2319
2320 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2321 {
2322 SCROLLINFO si;
2323 si.cbSize = sizeof(SCROLLINFO);
2324 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2325 si.nMin = 0;
2326 si.nMax = es->text_width - 1;
2327 si.nPage = es->format_rect.right - es->format_rect.left;
2328 si.nPos = es->x_offset;
2329 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2330 si.nMin, si.nMax, si.nPage, si.nPos);
2331 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2332 }
2333 }
2334
2335 /*********************************************************************
2336 *
2337 * EDIT_WordBreakProc
2338 *
2339 * Find the beginning of words.
2340 * Note: unlike the specs for a WordBreakProc, this function only
2341 * allows to be called without linebreaks between s[0] upto
2342 * s[count - 1]. Remember it is only called
2343 * internally, so we can decide this for ourselves.
2344 *
2345 */
2346 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2347 {
2348 INT ret = 0;
2349
2350 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2351
2352 if(!s) return 0;
2353
2354 switch (action) {
2355 case WB_LEFT:
2356 if (!count)
2357 break;
2358 if (index)
2359 index--;
2360 if (s[index] == ' ') {
2361 while (index && (s[index] == ' '))
2362 index--;
2363 if (index) {
2364 while (index && (s[index] != ' '))
2365 index--;
2366 if (s[index] == ' ')
2367 index++;
2368 }
2369 } else {
2370 while (index && (s[index] != ' '))
2371 index--;
2372 if (s[index] == ' ')
2373 index++;
2374 }
2375 ret = index;
2376 break;
2377 case WB_RIGHT:
2378 if (!count)
2379 break;
2380 if (index)
2381 index--;
2382 if (s[index] == ' ')
2383 while ((index < count) && (s[index] == ' ')) index++;
2384 else {
2385 while (s[index] && (s[index] != ' ') && (index < count))
2386 index++;
2387 while ((s[index] == ' ') && (index < count)) index++;
2388 }
2389 ret = index;
2390 break;
2391 case WB_ISDELIMITER:
2392 ret = (s[index] == ' ');
2393 break;
2394 default:
2395 ERR("unknown action code, please report !\n");
2396 break;
2397 }
2398 return ret;
2399 }
2400
2401
2402 /*********************************************************************
2403 *
2404 * EM_CHARFROMPOS
2405 *
2406 * returns line number (not index) in high-order word of result.
2407 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2408 * to Richedit, not to the edit control. Original documentation is valid.
2409 * FIXME: do the specs mean to return -1 if outside client area or
2410 * if outside formatting rectangle ???
2411 *
2412 */
2413 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2414 {
2415 POINT pt;
2416 RECT rc;
2417 INT index;
2418
2419 pt.x = x;
2420 pt.y = y;
2421 GetClientRect(es->hwndSelf, &rc);
2422 if (!PtInRect(&rc, pt))
2423 return -1;
2424
2425 index = EDIT_CharFromPos(es, x, y, NULL);
2426 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2427 }
2428
2429
2430 /*********************************************************************
2431 *
2432 * EM_FMTLINES
2433 *
2434 * Enable or disable soft breaks.
2435 *
2436 * This means: insert or remove the soft linebreak character (\r\r\n).
2437 * Take care to check if the text still fits the buffer after insertion.
2438 * If not, notify with EN_ERRSPACE.
2439 *
2440 */
2441 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2442 {
2443 es->flags &= ~EF_USE_SOFTBRK;
2444 if (add_eol) {
2445 es->flags |= EF_USE_SOFTBRK;
2446 FIXME("soft break enabled, not implemented\n");
2447 }
2448 return add_eol;
2449 }
2450
2451
2452 /*********************************************************************
2453 *
2454 * EM_GETHANDLE
2455 *
2456 * Hopefully this won't fire back at us.
2457 * We always start with a fixed buffer in the local heap.
2458 * Despite of the documentation says that the local heap is used
2459 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2460 * buffer on the local heap.
2461 *
2462 */
2463 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2464 {
2465 HLOCAL hLocal;
2466
2467 if (!(es->style & ES_MULTILINE))
2468 return 0;
2469
2470 if(es->is_unicode)
2471 hLocal = es->hloc32W;
2472 else
2473 {
2474 if(!es->hloc32A)
2475 {
2476 CHAR *textA;
2477 UINT countA, alloc_size;
2478 TRACE("Allocating 32-bit ANSI alias buffer\n");
2479 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2480 alloc_size = ROUND_TO_GROW(countA);
2481 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2482 {
2483 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2484 return 0;
2485 }
2486 textA = LocalLock(es->hloc32A);
2487 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2488 LocalUnlock(es->hloc32A);
2489 }
2490 hLocal = es->hloc32A;
2491 }
2492
2493 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2494 return hLocal;
2495 }
2496
2497
2498 /*********************************************************************
2499 *
2500 * EM_GETHANDLE16
2501 *
2502 * Hopefully this won't fire back at us.
2503 * We always start with a buffer in 32 bit linear memory.
2504 * However, with this message a 16 bit application requests
2505 * a handle of 16 bit local heap memory, where it expects to find
2506 * the text.
2507 * It's a pitty that from this moment on we have to use this
2508 * local heap, because applications may rely on the handle
2509 * in the future.
2510 *
2511 * In this function we'll try to switch to local heap.
2512 */
2513 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2514 {
2515 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2516 CHAR *textA;
2517 UINT countA, alloc_size;
2518
2519 if (!(es->style & ES_MULTILINE))
2520 return 0;
2521
2522 if (es->hloc16)
2523 return es->hloc16;
2524
2525 if (!LOCAL_HeapSize(hInstance)) {
2526 if (!LocalInit16(hInstance, 0,
2527 GlobalSize16(hInstance))) {
2528 ERR("could not initialize local heap\n");
2529 return 0;
2530 }
2531 TRACE("local heap initialized\n");
2532 }
2533
2534 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2535 alloc_size = ROUND_TO_GROW(countA);
2536
2537 TRACE("Allocating 16-bit ANSI alias buffer\n");
2538 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2539 ERR("could not allocate new 16 bit buffer\n");
2540 return 0;
2541 }
2542
2543 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2544 ERR("could not lock new 16 bit buffer\n");
2545 LOCAL_Free(hInstance, es->hloc16);
2546 es->hloc16 = 0;
2547 return 0;
2548 }
2549
2550 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2551 LOCAL_Unlock(hInstance, es->hloc16);
2552
2553 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2554 return es->hloc16;
2555 }
2556
2557
2558 /*********************************************************************
2559 *
2560 * EM_GETLINE
2561 *
2562 */
2563 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2564 {
2565 LPWSTR src;
2566 INT line_len, dst_len;
2567 INT i;
2568
2569 if (es->style & ES_MULTILINE) {
2570 if (line >= es->line_count)
2571 return 0;
2572 } else
2573 line = 0;
2574 i = EDIT_EM_LineIndex(es, line);
2575 src = es->text + i;
2576 line_len = EDIT_EM_LineLength(es, i);
2577 dst_len = *(WORD *)lParam;
2578 if(unicode)
2579 {
2580 LPWSTR dst = (LPWSTR)lParam;
2581 if(dst_len <= line_len)
2582 {
2583 memcpy(dst, src, dst_len * sizeof(WCHAR));
2584 return dst_len;
2585 }
2586 else /* Append 0 if enough space */
2587 {
2588 memcpy(dst, src, line_len * sizeof(WCHAR));
2589 dst[line_len] = 0;
2590 return line_len;
2591 }
2592 }
2593 else
2594 {
2595 LPSTR dst = (LPSTR)lParam;
2596 INT ret;
2597 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2598 if(!ret) /* Insufficient buffer size */
2599 return dst_len;
2600 if(ret < dst_len) /* Append 0 if enough space */
2601 dst[ret] = 0;
2602 return ret;
2603 }
2604 }
2605
2606
2607 /*********************************************************************
2608 *
2609 * EM_GETSEL
2610 *
2611 */
2612 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2613 {
2614 UINT s = es->selection_start;
2615 UINT e = es->selection_end;
2616
2617 ORDER_UINT(s, e);
2618 if (start)
2619 *start = s;
2620 if (end)
2621 *end = e;
2622 return MAKELONG(s, e);
2623 }
2624
2625
2626 /*********************************************************************
2627 *
2628 * EM_GETTHUMB
2629 *
2630 * FIXME: is this right ? (or should it be only VSCROLL)
2631 * (and maybe only for edit controls that really have their
2632 * own scrollbars) (and maybe only for multiline controls ?)
2633 * All in all: very poorly documented
2634 *
2635 */
2636 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2637 {
2638 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2639 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2640 }
2641
2642
2643 /*********************************************************************
2644 *
2645 * EM_LINEFROMCHAR
2646 *
2647 */
2648 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2649 {
2650 INT line;
2651 LINEDEF *line_def;
2652
2653 if (!(es->style & ES_MULTILINE))
2654 return 0;
2655 if (index > (INT)strlenW(es->text))
2656 return es->line_count - 1;
2657 if (index == -1)
2658 index = min(es->selection_start, es->selection_end);
2659
2660 line = 0;
2661 line_def = es->first_line_def;
2662 index -= line_def->length;
2663 while ((index >= 0) && line_def->next) {
2664 line++;
2665 line_def = line_def->next;
2666 index -= line_def->length;
2667 }
2668 return line;
2669 }
2670
2671
2672 /*********************************************************************
2673 *
2674 * EM_LINEINDEX
2675 *
2676 */
2677 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2678 {
2679 INT line_index;
2680 LINEDEF *line_def;
2681
2682 if (!(es->style & ES_MULTILINE))
2683 return 0;
2684 if (line >= es->line_count)
2685 return -1;
2686
2687 line_index = 0;
2688 line_def = es->first_line_def;
2689 if (line == -1) {
2690 INT index = es->selection_end - line_def->length;
2691 while ((index >= 0) && line_def->next) {
2692 line_index += line_def->length;
2693 line_def = line_def->next;
2694 index -= line_def->length;
2695 }
2696 } else {
2697 while (line > 0) {
2698 line_index += line_def->length;
2699 line_def = line_def->next;
2700 line--;
2701 }
2702 }
2703 return line_index;
2704 }
2705
2706
2707 /*********************************************************************
2708 *
2709 * EM_LINELENGTH
2710 *
2711 */
2712 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2713 {
2714 LINEDEF *line_def;
2715
2716 if (!(es->style & ES_MULTILINE))
2717 return strlenW(es->text);
2718
2719 if (index == -1) {
2720 /* get the number of remaining non-selected chars of selected lines */
2721 INT32 l; /* line number */
2722 INT32 li; /* index of first char in line */
2723 INT32 count;
2724 l = EDIT_EM_LineFromChar(es, es->selection_start);
2725 /* # chars before start of selection area */
2726 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2727 l = EDIT_EM_LineFromChar(es, es->selection_end);
2728 /* # chars after end of selection */
2729 li = EDIT_EM_LineIndex(es, l);
2730 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2731 return count;
2732 }
2733 line_def = es->first_line_def;
2734 index -= line_def->length;
2735 while ((index >= 0) && line_def->next) {
2736 line_def = line_def->next;
2737 index -= line_def->length;
2738 }
2739 return line_def->net_length;
2740 }
2741
2742
2743 /*********************************************************************
2744 *
2745 * EM_LINESCROLL
2746 *
2747 * NOTE: dx is in average character widths, dy - in lines;
2748 *
2749 */
2750 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2751 {
2752 if (!(es->style & ES_MULTILINE))
2753 return FALSE;
2754
2755 dx *= es->char_width;
2756 return EDIT_EM_LineScroll_internal(es, dx, dy);
2757 }
2758
2759 /*********************************************************************
2760 *
2761 * EDIT_EM_LineScroll_internal
2762 *
2763 * Version of EDIT_EM_LineScroll for internal use.
2764 * It doesn't refuse if ES_MULTILINE is set and assumes that
2765 * dx is in pixels, dy - in lines.
2766 *
2767 */
2768 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2769 {
2770 INT nyoff;
2771 INT x_offset_in_pixels;
2772
2773 if (es->style & ES_MULTILINE)
2774 {
2775 x_offset_in_pixels = es->x_offset;
2776 }
2777 else
2778 {
2779 dy = 0;
2780 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2781 }
2782
2783 if (-dx > x_offset_in_pixels)
2784 dx = -x_offset_in_pixels;
2785 if (dx > es->text_width - x_offset_in_pixels)
2786 dx = es->text_width - x_offset_in_pixels;
2787 nyoff = max(0, es->y_offset + dy);
2788 if (nyoff >= es->line_count)
2789 nyoff = es->line_count - 1;
2790 dy = (es->y_offset - nyoff) * es->line_height;
2791 if (dx || dy) {
2792 RECT rc1;
2793 RECT rc;
2794
2795 es->y_offset = nyoff;
2796 if(es->style & ES_MULTILINE)
2797 es->x_offset += dx;
2798 else
2799 es->x_offset += dx / es->char_width;
2800
2801 GetClientRect(es->hwndSelf, &rc1);
2802 IntersectRect(&rc, &rc1, &es->format_rect);
2803 ScrollWindowEx(es->hwndSelf, -dx, dy,
2804 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2805 /* force scroll info update */
2806 EDIT_UpdateScrollInfo(es);
2807 }
2808 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2809 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2810 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2811 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2812 return TRUE;
2813 }
2814
2815
2816 /*********************************************************************
2817 *
2818 * EM_POSFROMCHAR
2819 *
2820 */
2821 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2822 {
2823 INT len = strlenW(es->text);
2824 INT l;
2825 INT li;
2826 INT x;
2827 INT y = 0;
2828 HDC dc;
2829 HFONT old_font = 0;
2830 SIZE size;
2831
2832 index = min(index, len);
2833 dc = GetDC(es->hwndSelf);
2834 if (es->font)
2835 old_font = SelectObject(dc, es->font);
2836 if (es->style & ES_MULTILINE) {
2837 l = EDIT_EM_LineFromChar(es, index);
2838 y = (l - es->y_offset) * es->line_height;
2839 li = EDIT_EM_LineIndex(es, l);
2840 if (after_wrap && (li == index) && l) {
2841 INT l2 = l - 1;
2842 LINEDEF *line_def = es->first_line_def;
2843 while (l2) {
2844 line_def = line_def->next;
2845 l2--;
2846 }
2847 if (line_def->ending == END_WRAP) {
2848 l--;
2849 y -= es->line_height;
2850 li = EDIT_EM_LineIndex(es, l);
2851 }
2852 }
2853 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2854 es->tabs_count, es->tabs)) - es->x_offset;
2855 } else {
2856 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2857 if (index < es->x_offset) {
2858 GetTextExtentPoint32W(dc, text + index,
2859 es->x_offset - index, &size);
2860 x = -size.cx;
2861 } else {
2862 GetTextExtentPoint32W(dc, text + es->x_offset,
2863 index - es->x_offset, &size);
2864 x = size.cx;
2865 }
2866 y = 0;
2867 if (es->style & ES_PASSWORD)
2868 HeapFree(GetProcessHeap(), 0, text);
2869 }
2870 x += es->format_rect.left;
2871 y += es->format_rect.top;
2872 if (es->font)
2873 SelectObject(dc, old_font);
2874 ReleaseDC(es->hwndSelf, dc);
2875 return MAKELONG((INT16)x, (INT16)y);
2876 }
2877
2878
2879 /*********************************************************************
2880 *
2881 * EM_REPLACESEL
2882 *
2883 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2884 *
2885 */
2886 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2887 {
2888 UINT strl = strlenW(lpsz_replace);
2889 UINT tl = strlenW(es->text);
2890 UINT utl;
2891 UINT s;
2892 UINT e;
2893 UINT i;
2894 UINT size;
2895 LPWSTR p;
2896 HRGN hrgn = 0;
2897
2898 TRACE("%s, can_undo %d, send_update %d\n",
2899 debugstr_w(lpsz_replace), can_undo, send_update);
2900
2901 s = es->selection_start;
2902 e = es->selection_end;
2903
2904 if ((s == e) && !strl)
2905 return;
2906
2907 ORDER_UINT(s, e);
2908
2909 /* Issue the EN_MAXTEXT notification and continue with replacing text
2910 * such that buffer limit is honored. */
2911 size = tl - (e - s) + strl;
2912 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
2913 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
2914 strl = es->buffer_limit - (tl - (e-s));
2915 }
2916
2917 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2918 return;
2919
2920 if (e != s) {
2921 /* there is something to be deleted */
2922 TRACE("deleting stuff.\n");
2923 if (can_undo) {
2924 utl = strlenW(es->undo_text);
2925 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2926 /* undo-buffer is extended to the right */
2927 EDIT_MakeUndoFit(es, utl + e - s);
2928 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
2929 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2930 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2931 /* undo-buffer is extended to the left */
2932 EDIT_MakeUndoFit(es, utl + e - s);
2933 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2934 p[e - s] = p[0];
2935 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2936 p[i] = (es->text + s)[i];
2937 es->undo_position = s;
2938 } else {
2939 /* new undo-buffer */
2940 EDIT_MakeUndoFit(es, e - s);
2941 strncpyW(es->undo_text, es->text + s, e - s + 1);
2942 es->undo_text[e - s] = 0; /* ensure 0 termination */
2943 es->undo_position = s;
2944 }
2945 /* any deletion makes the old insertion-undo invalid */
2946 es->undo_insert_count = 0;
2947 } else
2948 EDIT_EM_EmptyUndoBuffer(es);
2949
2950 /* now delete */
2951 strcpyW(es->text + s, es->text + e);
2952 }
2953 if (strl) {
2954 /* there is an insertion */
2955 if (can_undo) {
2956 if ((s == es->undo_position) ||
2957 ((es->undo_insert_count) &&
2958 (s == es->undo_position + es->undo_insert_count)))
2959 /*
2960 * insertion is new and at delete position or
2961 * an extension to either left or right
2962 */
2963 es->undo_insert_count += strl;
2964 else {
2965 /* new insertion undo */
2966 es->undo_position = s;
2967 es->undo_insert_count = strl;
2968 /* new insertion makes old delete-buffer invalid */
2969 *es->undo_text = '\0';
2970 }
2971 } else
2972 EDIT_EM_EmptyUndoBuffer(es);
2973
2974 /* now insert */
2975 tl = strlenW(es->text);
2976 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));
2977 for (p = es->text + tl ; p >= es->text + s ; p--)
2978 p[strl] = p[0];
2979 for (i = 0 , p = es->text + s ; i < strl ; i++)
2980 p[i] = lpsz_replace[i];
2981 if(es->style & ES_UPPERCASE)
2982 CharUpperBuffW(p, strl);
2983 else if(es->style & ES_LOWERCASE)
2984 CharLowerBuffW(p, strl);
2985 s += strl;
2986 }
2987 if (es->style & ES_MULTILINE)
2988 {
2989 INT s = min(es->selection_start, es->selection_end);
2990
2991 hrgn = CreateRectRgn(0, 0, 0, 0);
2992 EDIT_BuildLineDefs_ML(es, s, s + strl,
2993 strl - abs(es->selection_end - es->selection_start), hrgn);
2994 }
2995 else
2996 EDIT_CalcLineWidth_SL(es);
2997
2998 EDIT_EM_SetSel(es, s, s, FALSE);
2999 es->flags |= EF_MODIFIED;
3000 if (send_update) es->flags |= EF_UPDATE;
3001 if (hrgn)
3002 {
3003 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3004 DeleteObject(hrgn);
3005 }
3006 else
3007 EDIT_UpdateText(es, NULL, TRUE);
3008
3009 EDIT_EM_ScrollCaret(es);
3010
3011 /* force scroll info update */
3012 EDIT_UpdateScrollInfo(es);
3013
3014
3015 if(es->flags & EF_UPDATE)
3016 {
3017 es->flags &= ~EF_UPDATE;
3018 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3019 }
3020 }
3021
3022
3023 /*********************************************************************
3024 *
3025 * EM_SCROLL
3026 *
3027 */
3028 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3029 {
3030 INT dy;
3031
3032 if (!(es->style & ES_MULTILINE))
3033 return (LRESULT)FALSE;
3034
3035 dy = 0;
3036
3037 switch (action) {
3038 case SB_LINEUP:
3039 if (es->y_offset)
3040 dy = -1;
3041 break;
3042 case SB_LINEDOWN:
3043 if (es->y_offset < es->line_count - 1)
3044 dy = 1;
3045 break;
3046 case SB_PAGEUP:
3047 if (es->y_offset)
3048 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3049 break;
3050 case SB_PAGEDOWN:
3051 if (es->y_offset < es->line_count - 1)
3052 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3053 break;
3054 default:
3055 return (LRESULT)FALSE;
3056 }
3057 if (dy) {
3058 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3059 /* check if we are going to move too far */
3060 if(es->y_offset + dy > es->line_count - vlc)
3061 dy = es->line_count - vlc - es->y_offset;
3062
3063 /* Notification is done in EDIT_EM_LineScroll */
3064 if(dy)
3065 EDIT_EM_LineScroll(es, 0, dy);
3066 }
3067 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3068 }
3069
3070
3071 /*********************************************************************
3072 *
3073 * EM_SCROLLCARET
3074 *
3075 */
3076 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3077 {
3078 if (es->style & ES_MULTILINE) {
3079 INT l;
3080 INT li;
3081 INT vlc;
3082 INT ww;
3083 INT cw = es->char_width;
3084 INT x;
3085 INT dy = 0;
3086 INT dx = 0;
3087
3088 l = EDIT_EM_LineFromChar(es, es->selection_end);
3089 li = EDIT_EM_LineIndex(es, l);
3090 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3091 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3092 if (l >= es->y_offset + vlc)
3093 dy = l - vlc + 1 - es->y_offset;
3094 if (l < es->y_offset)
3095 dy = l - es->y_offset;
3096 ww = es->format_rect.right - es->format_rect.left;
3097 if (x < es->format_rect.left)
3098 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3099 if (x > es->format_rect.right)
3100 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3101 if (dy || dx)
3102 {
3103 /* check if we are going to move too far */
3104 if(es->x_offset + dx + ww > es->text_width)
3105 dx = es->text_width - ww - es->x_offset;
3106 if(dx || dy)
3107 EDIT_EM_LineScroll_internal(es, dx, dy);
3108 }
3109 } else {
3110 INT x;
3111 INT goal;
3112 INT format_width;
3113
3114 if (!(es->style & ES_AUTOHSCROLL))
3115 return;
3116
3117 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3118 format_width = es->format_rect.right - es->format_rect.left;
3119 if (x < es->format_rect.left) {
3120 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3121 do {
3122 es->x_offset--;
3123 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3124 } while ((x < goal) && es->x_offset);
3125 /* FIXME: use ScrollWindow() somehow to improve performance */
3126 EDIT_UpdateText(es, NULL, TRUE);
3127 } else if (x > es->format_rect.right) {
3128 INT x_last;
3129 INT len = strlenW(es->text);
3130 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3131 do {
3132 es->x_offset++;
3133 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3134 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3135 } while ((x > goal) && (x_last > es->format_rect.right));
3136 /* FIXME: use ScrollWindow() somehow to improve performance */
3137 EDIT_UpdateText(es, NULL, TRUE);
3138 }
3139 }
3140
3141 if(es->flags & EF_FOCUSED)
3142 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3143 }
3144
3145
3146 /*********************************************************************
3147 *
3148 * EM_SETHANDLE
3149 *
3150 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3151 *
3152 */
3153 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3154 {
3155 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3156
3157 if (!(es->style & ES_MULTILINE))
3158 return;
3159
3160 if (!hloc) {
3161 WARN("called with NULL handle\n");
3162 return;
3163 }
3164
3165 EDIT_UnlockBuffer(es, TRUE);
3166
3167 if(es->hloc16)
3168 {
3169 LOCAL_Free(hInstance, es->hloc16);
3170 es->hloc16 = (HLOCAL16)NULL;
3171 }
3172
3173 if(es->is_unicode)
3174 {
3175 if(es->hloc32A)
3176 {
3177 LocalFree(es->hloc32A);
3178 es->hloc32A = NULL;
3179 }
3180 es->hloc32W = hloc;
3181 }
3182 else
3183 {
3184 INT countW, countA;
3185 HLOCAL hloc32W_new;
3186 WCHAR *textW;
3187 CHAR *textA;
3188
3189 countA = LocalSize(hloc);
3190 textA = LocalLock(hloc);
3191 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3192 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3193 {
3194 ERR("Could not allocate new unicode buffer\n");
3195 return;
3196 }
3197 textW = LocalLock(hloc32W_new);
3198 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3199 LocalUnlock(hloc32W_new);
3200 LocalUnlock(hloc);
3201
3202 if(es->hloc32W)
3203 LocalFree(es->hloc32W);
3204
3205 es->hloc32W = hloc32W_new;
3206 es->hloc32A = hloc;
3207 }
3208
3209 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3210
3211 EDIT_LockBuffer(es);
3212
3213 es->x_offset = es->y_offset = 0;
3214 es->selection_start = es->selection_end = 0;
3215 EDIT_EM_EmptyUndoBuffer(es);
3216 es->flags &= ~EF_MODIFIED;
3217 es->flags &= ~EF_UPDATE;
3218 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3219 EDIT_UpdateText(es, NULL, TRUE);
3220 EDIT_EM_ScrollCaret(es);
3221 /* force scroll info update */
3222 EDIT_UpdateScrollInfo(es);
3223 }
3224
3225
3226 /*********************************************************************
3227 *
3228 * EM_SETHANDLE16
3229 *
3230 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3231 *
3232 */
3233 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3234 {
3235 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3236 INT countW, countA;
3237 HLOCAL hloc32W_new;
3238 WCHAR *textW;
3239 CHAR *textA;
3240
3241 if (!(es->style & ES_MULTILINE))
3242 return;
3243
3244 if (!hloc) {
3245 WARN("called with NULL handle\n");
3246 return;
3247 }
3248
3249 EDIT_UnlockBuffer(es, TRUE);
3250
3251 if(es->hloc32A)
3252 {
3253 LocalFree(es->hloc32A);
3254 es->hloc32A = NULL;
3255 }
3256
3257 countA = LOCAL_Size(hInstance, hloc);
3258 textA = LOCAL_Lock(hInstance, hloc);
3259 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3260 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3261 {
3262 ERR("Could not allocate new unicode buffer\n");
3263 return;
3264 }
3265 textW = LocalLock(hloc32W_new);
3266 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3267 LocalUnlock(hloc32W_new);
3268 LOCAL_Unlock(hInstance, hloc);
3269
3270 if(es->hloc32W)
3271 LocalFree(es->hloc32W);
3272
3273 es->hloc32W = hloc32W_new;
3274 es->hloc16 = hloc;
3275
3276 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3277
3278 EDIT_LockBuffer(es);
3279
3280 es->x_offset = es->y_offset = 0;
3281 es->selection_start = es->selection_end = 0;
3282 EDIT_EM_EmptyUndoBuffer(es);
3283 es->flags &= ~EF_MODIFIED;
3284 es->flags &= ~EF_UPDATE;
3285 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3286 EDIT_UpdateText(es, NULL, TRUE);
3287 EDIT_EM_ScrollCaret(es);
3288 /* force scroll info update */
3289 EDIT_UpdateScrollInfo(es);
3290 }
3291
3292
3293 /*********************************************************************
3294 *
3295 * EM_SETLIMITTEXT
3296 *
3297 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3298 * However, the windows version is not complied to yet in all of edit.c
3299 *
3300 * Additionally as the wrapper for RichEdit controls we need larger buffers
3301 * at present -1 will represent nolimit
3302 */
3303 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3304 {
3305 if (limit == 0xFFFFFFFF)
3306 es->buffer_limit = -1;
3307 else if (es->style & ES_MULTILINE) {
3308 if (limit)
3309 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3310 else
3311 es->buffer_limit = BUFLIMIT_MULTI;
3312 } else {
3313 if (limit)
3314 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3315 else
3316 es->buffer_limit = BUFLIMIT_SINGLE;
3317 }
3318 }
3319
3320
3321 /*********************************************************************
3322 *
3323 * EM_SETMARGINS
3324 *
3325 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3326 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3327 * margin according to the textmetrics of the current font.
3328 *
3329 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3330 * of the char's width as the margin, but this is not how Windows handles this.
3331 * For all other fonts Windows sets the margins to zero.
3332 *
3333 */
3334 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3335 INT left, INT right)
3336 {
3337 TEXTMETRICW tm;
3338 INT default_left_margin = 0; /* in pixels */
3339 INT default_right_margin = 0; /* in pixels */
3340
3341 /* Set the default margins depending on the font */
3342 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3343 HDC dc = GetDC(es->hwndSelf);
3344 HFONT old_font = SelectObject(dc, es->font);
3345 GetTextMetricsW(dc, &tm);
3346 /* The default margins are only non zero for TrueType or Vector fonts */
3347 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3348 /* This must be calculated more exactly! But how? */
3349 default_left_margin = tm.tmAveCharWidth / 3;
3350 default_right_margin = tm.tmAveCharWidth / 3;
3351 }
3352 SelectObject(dc, old_font);
3353 ReleaseDC(es->hwndSelf, dc);
3354 }
3355
3356 if (action & EC_LEFTMARGIN) {
3357 if (left != EC_USEFONTINFO)
3358 es->left_margin = left;
3359 else
3360 es->left_margin = default_left_margin;
3361 }
3362
3363 if (action & EC_RIGHTMARGIN) {
3364 if (right != EC_USEFONTINFO)
3365 es->right_margin = right;
3366 else
3367 es->right_margin = default_right_margin;
3368 }
3369 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3370 }
3371
3372
3373 /*********************************************************************
3374 *
3375 * EM_SETPASSWORDCHAR
3376 *
3377 */
3378 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3379 {
3380 LONG style;
3381
3382 if (es->style & ES_MULTILINE)
3383 return;
3384
3385 if (es->password_char == c)
3386 return;
3387
3388 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3389 es->password_char = c;
3390 if (c) {
3391 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3392 es->style |= ES_PASSWORD;
3393 } else {
3394 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3395 es->style &= ~ES_PASSWORD;
3396 }
3397 EDIT_UpdateText(es, NULL, TRUE);
3398 }
3399
3400
3401 /*********************************************************************
3402 *
3403 * EDIT_EM_SetSel
3404 *
3405 * note: unlike the specs say: the order of start and end
3406 * _is_ preserved in Windows. (i.e. start can be > end)
3407 * In other words: this handler is OK
3408 *
3409 */
3410 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3411 {
3412 UINT old_start = es->selection_start;
3413 UINT old_end = es->selection_end;
3414 UINT len = strlenW(es->text);
3415
3416 if (start == (UINT)-1) {
3417 start = es->selection_end;
3418 end = es->selection_end;
3419 } else {
3420 start = min(start, len);
3421 end = min(end, len);
3422 }
3423 es->selection_start = start;
3424 es->selection_end = end;
3425 if (after_wrap)
3426 es->flags |= EF_AFTER_WRAP;
3427 else
3428 es->flags &= ~EF_AFTER_WRAP;
3429 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3430 ORDER_UINT(start, end);
3431 ORDER_UINT(end, old_end);
3432 ORDER_UINT(start, old_start);
3433 ORDER_UINT(old_start, old_end);
3434 if (end != old_start)
3435 {
3436 /*
3437 * One can also do
3438 * ORDER_UINT32(end, old_start);
3439 * EDIT_InvalidateText(es, start, end);
3440 * EDIT_InvalidateText(es, old_start, old_end);
3441 * in place of the following if statement.
3442 */
3443 if (old_start > end )
3444 {
3445 EDIT_InvalidateText(es, start, end);
3446 EDIT_InvalidateText(es, old_start, old_end);
3447 }
3448 else
3449 {
3450 EDIT_InvalidateText(es, start, old_start);
3451 EDIT_InvalidateText(es, end, old_end);
3452 }
3453 }
3454 else EDIT_InvalidateText(es, start, old_end);
3455 }
3456
3457
3458 /*********************************************************************
3459 *
3460 * EM_SETTABSTOPS
3461 *
3462 */
3463 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3464 {
3465 if (!(es->style & ES_MULTILINE))
3466 return FALSE;
3467 if (es->tabs)
3468 HeapFree(GetProcessHeap(), 0, es->tabs);
3469 es->tabs_count = count;
3470 if (!count)
3471 es->tabs = NULL;
3472 else {
3473 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3474 memcpy(es->tabs, tabs, count * sizeof(INT));
3475 }
3476 return TRUE;
3477 }
3478
3479
3480 /*********************************************************************
3481 *
3482 * EM_SETTABSTOPS16
3483 *
3484 */
3485 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3486 {
3487 if (!(es->style & ES_MULTILINE))
3488 return FALSE;
3489 if (es->tabs)
3490 HeapFree(GetProcessHeap(), 0, es->tabs);
3491 es->tabs_count = count;
3492 if (!count)
3493 es->tabs = NULL;
3494 else {
3495 INT i;
3496 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3497 for (i = 0 ; i < count ; i++)
3498 es->tabs[i] = *tabs++;
3499 }
3500 return TRUE;
3501 }
3502
3503
3504 /*********************************************************************
3505 *
3506 * EM_SETWORDBREAKPROC
3507 *
3508 */
3509 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam)
3510 {
3511 if (es->word_break_proc == (void *)lParam)
3512 return;
3513
3514 es->word_break_proc = (void *)lParam;
3515 es->word_break_proc16 = NULL;
3516
3517 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3518 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3519 EDIT_UpdateText(es, NULL, TRUE);
3520 }
3521 }
3522
3523
3524 /*********************************************************************
3525 *
3526 * EM_SETWORDBREAKPROC16
3527 *
3528 */
3529 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3530 {
3531 if (es->word_break_proc16 == wbp)
3532 return;
3533
3534 es->word_break_proc = NULL;
3535 es->word_break_proc16 = wbp;
3536 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3537 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3538 EDIT_UpdateText(es, NULL, TRUE);
3539 }
3540 }
3541
3542
3543 /*********************************************************************
3544 *
3545 * EM_UNDO / WM_UNDO
3546 *
3547 */
3548 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3549 {
3550 INT ulength;
3551 LPWSTR utext;
3552
3553 /* As per MSDN spec, for a single-line edit control,
3554 the return value is always TRUE */
3555 if( es->style & ES_READONLY )
3556 return !(es->style & ES_MULTILINE);
3557
3558 ulength = strlenW(es->undo_text);
3559
3560 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3561
3562 strcpyW(utext, es->undo_text);
3563
3564 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3565 es->undo_insert_count, debugstr_w(utext));
3566
3567 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3568 EDIT_EM_EmptyUndoBuffer(es);
3569 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3570 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3571 /* send the notification after the selection start and end are set */
3572 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3573 EDIT_EM_ScrollCaret(es);
3574 HeapFree(GetProcessHeap(), 0, utext);
3575
3576 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3577 es->undo_insert_count, debugstr_w(es->undo_text));
3578 return TRUE;
3579 }
3580
3581
3582 /*********************************************************************
3583 *
3584 * WM_CHAR
3585 *
3586 */
3587 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3588 {
3589 BOOL control;
3590
3591 /* Protect read-only edit control from modification */
3592 if(es->style & ES_READONLY)
3593 return;
3594
3595 control = GetKeyState(VK_CONTROL) & 0x8000;
3596
3597 switch (c) {
3598 case '\r':
3599 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3600 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3601 break;
3602 case '\n':
3603 if (es->style & ES_MULTILINE) {
3604 if (es->style & ES_READONLY) {
3605 EDIT_MoveHome(es, FALSE);
3606 EDIT_MoveDown_ML(es, FALSE);
3607 } else {
3608 static const WCHAR cr_lfW[] = {'\r','\n',0};
3609 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3610 }
3611 }
3612 break;
3613 case '\t':
3614 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3615 {
3616 static const WCHAR tabW[] = {'\t',0};
3617 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3618 }
3619 break;
3620 case VK_BACK:
3621 if (!(es->style & ES_READONLY) && !control) {
3622 if (es->selection_start != es->selection_end)
3623 EDIT_WM_Clear(es);
3624 else {
3625 /* delete character left of caret */
3626 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3627 EDIT_MoveBackward(es, TRUE);
3628 EDIT_WM_Clear(es);
3629 }
3630 }
3631 break;
3632 case 0x03: /* ^C */
3633 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3634 break;
3635 case 0x16: /* ^V */
3636 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3637 break;
3638 case 0x18: /* ^X */
3639 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3640 break;
3641
3642 default:
3643 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3644 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3645 break;
3646
3647 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3648 WCHAR str[2];
3649 str[0] = c;
3650 str[1] = '\0';
3651 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3652 }
3653 break;
3654 }
3655 }
3656
3657
3658 /*********************************************************************
3659 *
3660 * WM_COMMAND
3661 *
3662 */
3663 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3664 {
3665 if (code || control)
3666 return;
3667
3668 switch (id) {
3669 case EM_UNDO:
3670 EDIT_EM_Undo(es);
3671 break;
3672 case WM_CUT:
3673 EDIT_WM_Cut(es);
3674 break;
3675 case WM_COPY:
3676 EDIT_WM_Copy(es);
3677 break;
3678 case WM_PASTE:
3679 EDIT_WM_Paste(es);
3680 break;
3681 case WM_CLEAR:
3682 EDIT_WM_Clear(es);
3683 break;
3684 case EM_SETSEL:
3685 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3686 EDIT_EM_ScrollCaret(es);
3687 break;
3688 default:
3689 ERR("unknown menu item, please report\n");
3690 break;
3691 }
3692 }
3693
3694
3695 /*********************************************************************
3696 *
3697 * WM_CONTEXTMENU
3698 *
3699 * Note: the resource files resource/sysres_??.rc cannot define a
3700 * single popup menu. Hence we use a (dummy) menubar
3701 * containing the single popup menu as its first item.
3702 *
3703 * FIXME: the message identifiers have been chosen arbitrarily,
3704 * hence we use MF_BYPOSITION.
3705 * We might as well use the "real" values (anybody knows ?)
3706 * The menu definition is in resources/sysres_??.rc.
3707 * Once these are OK, we better use MF_BYCOMMAND here
3708 * (as we do in EDIT_WM_Command()).
3709 *
3710 */
3711 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3712 {
3713 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3714 HMENU popup = GetSubMenu(menu, 0);
3715 UINT start = es->selection_start;
3716 UINT end = es->selection_end;
3717
3718 ORDER_UINT(start, end);
3719
3720 /* undo */
3721 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3722 /* cut */
3723 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3724 /* copy */
3725 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3726 /* paste */
3727 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3728 /* delete */
3729 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3730 /* select all */
3731 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3732
3733 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3734 DestroyMenu(menu);
3735 }
3736
3737
3738 /*********************************************************************
3739 *
3740 * WM_COPY
3741 *
3742 */
3743 static void EDIT_WM_Copy(EDITSTATE *es)
3744 {
3745 INT s = min(es->selection_start, es->selection_end);
3746 INT e = max(es->selection_start, es->selection_end);
3747 HGLOBAL hdst;
3748 LPWSTR dst;
3749
3750 if (e == s) return;
3751
3752 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3753 dst = GlobalLock(hdst);
3754 strncpyW(dst, es->text + s, e - s);
3755 dst[e - s] = 0; /* ensure 0 termination */
3756 TRACE("%s\n", debugstr_w(dst));
3757 GlobalUnlock(hdst);
3758 OpenClipboard(es->hwndSelf);
3759 EmptyClipboard();
3760 SetClipboardData(CF_UNICODETEXT, hdst);
3761 CloseClipboard();
3762 }
3763
3764
3765 /*********************************************************************
3766 *
3767 * WM_CREATE
3768 *
3769 */
3770 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3771 {
3772 TRACE("%s\n", debugstr_w(name));
3773 /*
3774 * To initialize some final structure members, we call some helper
3775 * functions. However, since the EDITSTATE is not consistent (i.e.
3776 * not fully initialized), we should be very careful which
3777 * functions can be called, and in what order.
3778 */
3779 EDIT_WM_SetFont(es, 0, FALSE);
3780 EDIT_EM_EmptyUndoBuffer(es);
3781
3782 if (name && *name) {
3783 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
3784 /* if we insert text to the editline, the text scrolls out
3785 * of the window, as the caret is placed after the insert
3786 * pos normally; thus we reset es->selection... to 0 and
3787 * update caret
3788 */
3789 es->selection_start = es->selection_end = 0;
3790 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
3791 * Messages are only to be sent when the USER does something to
3792 * change the contents. So I am removing this EN_CHANGE
3793 *
3794 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3795 */
3796 EDIT_EM_ScrollCaret(es);
3797 }
3798 /* force scroll info update */
3799 EDIT_UpdateScrollInfo(es);
3800 /* The rule seems to return 1 here for success */
3801 /* Power Builder masked edit controls will crash */
3802 /* if not. */
3803 /* FIXME: is that in all cases so ? */
3804 return 1;
3805 }
3806
3807
3808 /*********************************************************************
3809 *
3810 * WM_DESTROY
3811 *
3812 */
3813 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
3814 {
3815 LINEDEF *pc, *pp;
3816
3817 if (es->hloc32W) {
3818 while (LocalUnlock(es->hloc32W)) ;
3819 LocalFree(es->hloc32W);
3820 }
3821 if (es->hloc32A) {
3822 while (LocalUnlock(es->hloc32A)) ;
3823 LocalFree(es->hloc32A);
3824 }
3825 if (es->hloc16) {
3826 HINSTANCE16 hInstance = GetWindowWord( es->hwndSelf, GWL_HINSTANCE );
3827 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3828 LOCAL_Free(hInstance, es->hloc16);
3829 }
3830
3831 pc = es->first_line_def;
3832 while (pc)
3833 {
3834 pp = pc->next;
3835 HeapFree(GetProcessHeap(), 0, pc);
3836 pc = pp;
3837 }
3838
3839 SetWindowLongW( es->hwndSelf, 0, 0 );
3840 HeapFree(GetProcessHeap(), 0, es);
3841
3842 return 0;
3843 }
3844
3845
3846 /*********************************************************************
3847 *
3848 * WM_ERASEBKGND
3849 *
3850 */
3851 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
3852 {
3853 /* we do the proper erase in EDIT_WM_Paint */
3854 return -1;
3855 }
3856
3857
3858 /*********************************************************************
3859 *
3860 * WM_GETTEXT
3861 *
3862 */
3863 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3864 {
3865 if(!count) return 0;
3866
3867 if(unicode)
3868 {
3869 LPWSTR textW = (LPWSTR)lParam;
3870 lstrcpynW(textW, es->text, count);
3871 return strlenW(textW);
3872 }
3873 else
3874 {
3875 LPSTR textA = (LPSTR)lParam;
3876 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3877 textA[count - 1] = 0; /* ensure 0 termination */
3878 return strlen(textA);
3879 }
3880 }
3881
3882 /*********************************************************************
3883 *
3884 * WM_HSCROLL
3885 *
3886 */
3887 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3888 {
3889 INT dx;
3890 INT fw;
3891
3892 if (!(es->style & ES_MULTILINE))
3893 return 0;
3894
3895 if (!(es->style & ES_AUTOHSCROLL))
3896 return 0;
3897
3898 dx = 0;
3899 fw = es->format_rect.right - es->format_rect.left;
3900 switch (action) {
3901 case SB_LINELEFT:
3902 TRACE("SB_LINELEFT\n");
3903 if (es->x_offset)
3904 dx = -es->char_width;
3905 break;
3906 case SB_LINERIGHT:
3907 TRACE("SB_LINERIGHT\n");
3908 if (es->x_offset < es->text_width)
3909 dx = es->char_width;
3910 break;
3911 case SB_PAGELEFT:
3912 TRACE("SB_PAGELEFT\n");
3913 if (es->x_offset)
3914 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3915 break;
3916 case SB_PAGERIGHT:
3917 TRACE("SB_PAGERIGHT\n");
3918 if (es->x_offset < es->text_width)
3919 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3920 break;
3921 case SB_LEFT:
3922 TRACE("SB_LEFT\n");
3923 if (es->x_offset)
3924 dx = -es->x_offset;
3925 break;
3926 case SB_RIGHT:
3927 TRACE("SB_RIGHT\n");
3928 if (es->x_offset < es->text_width)
3929 dx = es->text_width - es->x_offset;
3930 break;
3931 case SB_THUMBTRACK:
3932 TRACE("SB_THUMBTRACK %d\n", pos);
3933 es->flags |= EF_HSCROLL_TRACK;
3934 if(es->style & WS_HSCROLL)
3935 dx = pos - es->x_offset;
3936 else
3937 {
3938 INT fw, new_x;
3939 /* Sanity check */
3940 if(pos < 0 || pos > 100) return 0;
3941 /* Assume default scroll range 0-100 */
3942 fw = es->format_rect.right - es->format_rect.left;
3943 new_x = pos * (es->text_width - fw) / 100;
3944 dx = es->text_width ? (new_x - es->x_offset) : 0;
3945 }
3946 break;
3947 case SB_THUMBPOSITION:
3948 TRACE("SB_THUMBPOSITION %d\n", pos);
3949 es->flags &= ~EF_HSCROLL_TRACK;
3950 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3951 dx = pos - es->x_offset;
3952 else
3953 {
3954 INT fw, new_x;
3955 /* Sanity check */
3956 if(pos < 0 || pos > 100) return 0;
3957 /* Assume default scroll range 0-100 */
3958 fw = es->format_rect.right - es->format_rect.left;
3959 new_x = pos * (es->text_width - fw) / 100;
3960 dx = es->text_width ? (new_x - es->x_offset) : 0;
3961 }
3962 if (!dx) {
3963 /* force scroll info update */
3964 EDIT_UpdateScrollInfo(es);
3965 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
3966 }
3967 break;
3968 case SB_ENDSCROLL:
3969 TRACE("SB_ENDSCROLL\n");
3970 break;
3971 /*
3972 * FIXME : the next two are undocumented !
3973 * Are we doing the right thing ?
3974 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3975 * although it's also a regular control message.
3976 */
3977 case EM_GETTHUMB: /* this one is used by NT notepad */
3978 case EM_GETTHUMB16:
3979 {
3980 LRESULT ret;
3981 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3982 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3983 else
3984 {
3985 /* Assume default scroll range 0-100 */
3986 INT fw = es->format_rect.right - es->format_rect.left;
3987 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
3988 }
3989 TRACE("EM_GETTHUMB: returning %ld\n", ret);
3990 return ret;
3991 }
3992 case EM_LINESCROLL16:
3993 TRACE("EM_LINESCROLL16\n");
3994 dx = pos;
3995 break;
3996
3997 default:
3998 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
3999 action, action);
4000 return 0;
4001 }
4002 if (dx)
4003 {
4004 INT fw = es->format_rect.right - es->format_rect.left;
4005 /* check if we are going to move too far */
4006 if(es->x_offset + dx + fw > es->text_width)
4007 dx = es->text_width - fw - es->x_offset;
4008 if(dx)
4009 EDIT_EM_LineScroll_internal(es, dx, 0);
4010 }
4011 return 0;
4012 }
4013
4014
4015 /*********************************************************************
4016 *
4017 * EDIT_CheckCombo
4018 *
4019 */
4020 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4021 {
4022 HWND hLBox = es->hwndListBox;
4023 HWND hCombo;
4024 BOOL bDropped;
4025 int nEUI;
4026
4027 if (!hLBox)
4028 return FALSE;
4029
4030 hCombo = GetParent(es->hwndSelf);
4031 bDropped = TRUE;
4032 nEUI = 0;
4033
4034 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4035
4036 if (key == VK_UP || key == VK_DOWN)
4037 {
4038 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4039 nEUI = 1;
4040
4041 if (msg == WM_KEYDOWN || nEUI)
4042 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4043 }
4044
4045 switch (msg)
4046 {
4047 case WM_KEYDOWN:
4048 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4049 {
4050 /* make sure ComboLBox pops up */
4051 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4052 key = VK_F4;
4053 nEUI = 2;
4054 }
4055
4056 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4057 break;
4058
4059 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4060 if (nEUI)
4061 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4062 else
4063 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4064 break;
4065 }
4066
4067 if(nEUI == 2)
4068 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4069
4070 return TRUE;
4071 }
4072
4073
4074 /*********************************************************************
4075 *
4076 * WM_KEYDOWN
4077 *
4078 * Handling of special keys that don't produce a WM_CHAR
4079 * (i.e. non-printable keys) & Backspace & Delete
4080 *
4081 */
4082 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4083 {
4084 BOOL shift;
4085 BOOL control;
4086
4087 if (GetKeyState(VK_MENU) & 0x8000)
4088 return 0;
4089
4090 shift = GetKeyState(VK_SHIFT) & 0x8000;
4091 control = GetKeyState(VK_CONTROL) & 0x8000;
4092
4093 switch (key) {
4094 case VK_F4:
4095 case VK_UP:
4096 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4097 break;
4098
4099 /* fall through */
4100 case VK_LEFT:
4101 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4102 EDIT_MoveUp_ML(es, shift);
4103 else
4104 if (control)
4105 EDIT_MoveWordBackward(es, shift);
4106 else
4107 EDIT_MoveBackward(es, shift);
4108 break;
4109 case VK_DOWN:
4110 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4111 break;
4112 /* fall through */
4113 case VK_RIGHT:
4114 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4115 EDIT_MoveDown_ML(es, shift);
4116 else if (control)
4117 EDIT_MoveWordForward(es, shift);
4118 else
4119 EDIT_MoveForward(es, shift);
4120 break;
4121 case VK_HOME:
4122 EDIT_MoveHome(es, shift);
4123 break;
4124 case VK_END:
4125 EDIT_MoveEnd(es, shift);
4126 break;
4127 case VK_PRIOR:
4128 if (es->style & ES_MULTILINE)
4129 EDIT_MovePageUp_ML(es, shift);
4130 else
4131 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4132 break;
4133 case VK_NEXT:
4134 if (es->style & ES_MULTILINE)
4135 EDIT_MovePageDown_ML(es, shift);
4136 else
4137 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4138 break;
4139 case VK_DELETE:
4140 if (!(es->style & ES_READONLY) && !(shift && control)) {
4141 if (es->selection_start != es->selection_end) {
4142 if (shift)
4143 EDIT_WM_Cut(es);
4144 else
4145 EDIT_WM_Clear(es);
4146 } else {
4147 if (shift) {
4148 /* delete character left of caret */
4149 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4150 EDIT_MoveBackward(es, TRUE);
4151 EDIT_WM_Clear(es);
4152 } else if (control) {
4153 /* delete to end of line */
4154 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4155 EDIT_MoveEnd(es, TRUE);
4156 EDIT_WM_Clear(es);
4157 } else {
4158 /* delete character right of caret */
4159 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4160 EDIT_MoveForward(es, TRUE);
4161 EDIT_WM_Clear(es);
4162 }
4163 }
4164 }
4165 break;
4166 case VK_INSERT:
4167 if (shift) {
4168 if (!(es->style & ES_READONLY))
4169 EDIT_WM_Paste(es);
4170 } else if (control)
4171 EDIT_WM_Copy(es);
4172 break;
4173 case VK_RETURN:
4174 /* If the edit doesn't want the return send a message to the default object */
4175 if(!(es->style & ES_WANTRETURN))
4176 {
4177 HWND hwndParent = GetParent(es->hwndSelf);
4178 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4179 if (HIWORD(dw) == DC_HASDEFID)
4180 {
4181 SendMessageW( hwndParent, WM_COMMAND,
4182 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4183 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4184 }
4185 }
4186 break;
4187 }
4188 return 0;
4189 }
4190
4191
4192 /*********************************************************************
4193 *
4194 * WM_KILLFOCUS
4195 *
4196 */
4197 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4198 {
4199 es->flags &= ~EF_FOCUSED;
4200 DestroyCaret();
4201 if(!(es->style & ES_NOHIDESEL))
4202 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4203 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4204 return 0;
4205 }
4206
4207
4208 /*********************************************************************
4209 *
4210 * WM_LBUTTONDBLCLK
4211 *
4212 * The caret position has been set on the WM_LBUTTONDOWN message
4213 *
4214 */
4215 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4216 {
4217 INT s;
4218 INT e = es->selection_end;
4219 INT l;
4220 INT li;
4221 INT ll;
4222
4223 if (!(es->flags & EF_FOCUSED))
4224 return 0;
4225
4226 l = EDIT_EM_LineFromChar(es, e);
4227 li = EDIT_EM_LineIndex(es, l);
4228 ll = EDIT_EM_LineLength(es, e);
4229 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4230 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4231 EDIT_EM_SetSel(es, s, e, FALSE);
4232 EDIT_EM_ScrollCaret(es);
4233 return 0;
4234 }
4235
4236
4237 /*********************************************************************
4238 *
4239 * WM_LBUTTONDOWN
4240 *
4241 */
4242 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4243 {
4244 INT e;
4245 BOOL after_wrap;
4246
4247 SetFocus(es->hwndSelf);
4248 if (!(es->flags & EF_FOCUSED))
4249 return 0;
4250
4251 es->bCaptureState = TRUE;
4252 SetCapture(es->hwndSelf);
4253 EDIT_ConfinePoint(es, &x, &y);
4254 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4255 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4256 EDIT_EM_ScrollCaret(es);
4257 es->region_posx = es->region_posy = 0;
4258 SetTimer(es->hwndSelf, 0, 100, NULL);
4259 return 0;
4260 }
4261
4262
4263 /*********************************************************************
4264 *
4265 * WM_LBUTTONUP
4266 *
4267 */
4268 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4269 {
4270 if (es->bCaptureState) {
4271 KillTimer(es->hwndSelf, 0);
4272 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4273 }
4274 es->bCaptureState = FALSE;
4275 return 0;
4276 }
4277
4278
4279 /*********************************************************************
4280 *
4281 * WM_MBUTTONDOWN
4282 *
4283 */
4284 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4285 {
4286 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4287 return 0;
4288 }
4289
4290
4291 /*********************************************************************
4292 *
4293 * WM_MOUSEMOVE
4294 *
4295 */
4296 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4297 {
4298 INT e;
4299 BOOL after_wrap;
4300 INT prex, prey;
4301
4302 if (GetCapture() != es->hwndSelf)
4303 return 0;
4304
4305 /*
4306 * FIXME: gotta do some scrolling if outside client
4307 * area. Maybe reset the timer ?
4308 */
4309 prex = x; prey = y;
4310 EDIT_ConfinePoint(es, &x, &y);
4311 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4312 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4313 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4314 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4315 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4316 return 0;
4317 }
4318
4319
4320 /*********************************************************************
4321 *
4322 * WM_NCCREATE
4323 *
4324 * See also EDIT_WM_StyleChanged
4325 */
4326 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4327 {
4328 EDITSTATE *es;
4329 UINT alloc_size;
4330
4331 TRACE("Creating %s edit control, style = %08lx\n",
4332 unicode ? "Unicode" : "ANSI", lpcs->style);
4333
4334 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4335 return FALSE;
4336 SetWindowLongW( hwnd, 0, (LONG)es );
4337
4338 /*
4339 * Note: since the EDITSTATE has not been fully initialized yet,
4340 * we can't use any API calls that may send
4341 * WM_XXX messages before WM_NCCREATE is completed.
4342 */
4343
4344 es->is_unicode = unicode;
4345 es->style = lpcs->style;
4346
4347 es->bEnableState = !(es->style & WS_DISABLED);
4348
4349 es->hwndSelf = hwnd;
4350 /* Save parent, which will be notified by EN_* messages */
4351 es->hwndParent = lpcs->hwndParent;
4352
4353 if (es->style & ES_COMBO)
4354 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4355
4356 /* Number overrides lowercase overrides uppercase (at least it
4357 * does in Win95). However I'll bet that ES_NUMBER would be
4358 * invalid under Win 3.1.
4359 */
4360 if (es->style & ES_NUMBER) {
4361 ; /* do not override the ES_NUMBER */
4362 } else if (es->style & ES_LOWERCASE) {
4363 es->style &= ~ES_UPPERCASE;
4364 }
4365 if (es->style & ES_MULTILINE) {
4366 es->buffer_limit = BUFLIMIT_MULTI;
4367 if (es->style & WS_VSCROLL)
4368 es->style |= ES_AUTOVSCROLL;
4369 if (es->style & WS_HSCROLL)
4370 es->style |= ES_AUTOHSCROLL;
4371 es->style &= ~ES_PASSWORD;
4372 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4373 /* Confirmed - RIGHT overrides CENTER */
4374 if (es->style & ES_RIGHT)
4375 es->style &= ~ES_CENTER;
4376 es->style &= ~WS_HSCROLL;
4377 es->style &= ~ES_AUTOHSCROLL;
4378 }
4379
4380 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4381 es->style |= ES_AUTOVSCROLL;
4382 } else {
4383 es->buffer_limit = BUFLIMIT_SINGLE;
4384 es->style &= ~ES_CENTER;
4385 es->style &= ~ES_RIGHT;
4386 es->style &= ~WS_HSCROLL;
4387 es->style &= ~WS_VSCROLL;
4388 es->style &= ~ES_AUTOVSCROLL;
4389 es->style &= ~ES_WANTRETURN;
4390 if (es->style & ES_PASSWORD)
4391 es->password_char = '*';
4392
4393 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4394 es->style |= ES_AUTOHSCROLL;
4395 }
4396
4397 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4398 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4399 return FALSE;
4400 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4401
4402 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4403 return FALSE;
4404 es->undo_buffer_size = es->buffer_size;
4405
4406 if (es->style & ES_MULTILINE)
4407 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4408 return FALSE;
4409 es->line_count = 1;
4410
4411 /*
4412 * In Win95 look and feel, the WS_BORDER style is replaced by the
4413 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4414 * control a non client area. Not always. This coordinates in some
4415 * way with the window creation code in dialog.c When making
4416 * modifications please ensure that the code still works for edit
4417 * controls created directly with style 0x50800000, exStyle 0 (
4418 * which should have a single pixel border)
4419 */
4420 es->style &= ~WS_BORDER;
4421
4422 return TRUE;
4423 }
4424
4425 /*********************************************************************
4426 *
4427 * WM_PAINT
4428 *
4429 */
4430 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam)
4431 {
4432 PAINTSTRUCT ps;
4433 INT i;
4434 HDC dc;
4435 HFONT old_font = 0;
4436 RECT rc;
4437 RECT rcClient;
4438 RECT rcLine;
4439 RECT rcRgn;
4440 HBRUSH brush;
4441 BOOL rev = es->bEnableState &&
4442 ((es->flags & EF_FOCUSED) ||
4443 (es->style & ES_NOHIDESEL));
4444 if (!wParam)
4445 dc = BeginPaint(es->hwndSelf, &ps);
4446 else
4447 dc = (HDC) wParam;
4448
4449 GetClientRect(es->hwndSelf, &rcClient);
4450
4451 /* paint the background */
4452 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
4453 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
4454 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4455 GetClipBox(dc, &rc);
4456 FillRect(dc, &rc, brush);
4457
4458 /* draw the border */
4459 if(es->style & WS_BORDER) {
4460 rc = rcClient;
4461 if(es->style & ES_MULTILINE) {
4462 if(es->style & WS_HSCROLL) rc.bottom++;
4463 if(es->style & WS_VSCROLL) rc.right++;
4464 }
4465 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4466 }
4467 IntersectClipRect(dc, es->format_rect.left,
4468 es->format_rect.top,
4469 es->format_rect.right,
4470 es->format_rect.bottom);
4471 if (es->style & ES_MULTILINE) {
4472 rc = rcClient;
4473 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4474 }
4475 if (es->font)
4476 old_font = SelectObject(dc, es->font);
4477 EDIT_NotifyCtlColor(es, dc);
4478
4479 if (!es->bEnableState)
4480 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4481 GetClipBox(dc, &rcRgn);
4482 if (es->style & ES_MULTILINE) {
4483 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4484 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4485 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4486 if (IntersectRect(&rc, &rcRgn, &rcLine))
4487 EDIT_PaintLine(es, dc, i, rev);
4488 }
4489 } else {
4490 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4491 if (IntersectRect(&rc, &rcRgn, &rcLine))
4492 EDIT_PaintLine(es, dc, 0, rev);
4493 }
4494 if (es->font)
4495 SelectObject(dc, old_font);
4496
4497 if (!wParam)
4498 EndPaint(es->hwndSelf, &ps);
4499 }
4500
4501
4502 /*********************************************************************
4503 *
4504 * WM_PASTE
4505 *
4506 */
4507 static void EDIT_WM_Paste(EDITSTATE *es)
4508 {
4509 HGLOBAL hsrc;
4510 LPWSTR src;
4511
4512 /* Protect read-only edit control from modification */
4513 if(es->style & ES_READONLY)
4514 return;
4515
4516 OpenClipboard(es->hwndSelf);
4517 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4518 src = (LPWSTR)GlobalLock(hsrc);
4519 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4520 GlobalUnlock(hsrc);
4521 }
4522 CloseClipboard();
4523 }
4524
4525
4526 /*********************************************************************
4527 *
4528 * WM_SETFOCUS
4529 *
4530 */
4531 static void EDIT_WM_SetFocus(EDITSTATE *es)
4532 {
4533 es->flags |= EF_FOCUSED;
4534 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4535 EDIT_SetCaretPos(es, es->selection_end,
4536 es->flags & EF_AFTER_WRAP);
4537 if(!(es->style & ES_NOHIDESEL))
4538 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4539 ShowCaret(es->hwndSelf);
4540 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4541 }
4542
4543
4544 /*********************************************************************
4545 *
4546 * WM_SETFONT
4547 *
4548 * With Win95 look the margins are set to default font value unless
4549 * the system font (font == 0) is being set, in which case they are left
4550 * unchanged.
4551 *
4552 */
4553 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4554 {
4555 TEXTMETRICW tm;
4556 HDC dc;
4557 HFONT old_font = 0;
4558 RECT r;
4559
4560 es->font = font;
4561 dc = GetDC(es->hwndSelf);
4562 if (font)
4563 old_font = SelectObject(dc, font);
4564 GetTextMetricsW(dc, &tm);
4565 es->line_height = tm.tmHeight;
4566 es->char_width = tm.tmAveCharWidth;
4567 if (font)
4568 SelectObject(dc, old_font);
4569 ReleaseDC(es->hwndSelf, dc);
4570 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4571 EC_USEFONTINFO, EC_USEFONTINFO);
4572
4573 /* Force the recalculation of the format rect for each font change */
4574 GetClientRect(es->hwndSelf, &r);
4575 EDIT_SetRectNP(es, &r);
4576
4577 if (es->style & ES_MULTILINE)
4578 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4579 else
4580 EDIT_CalcLineWidth_SL(es);
4581
4582 if (redraw)
4583 EDIT_UpdateText(es, NULL, TRUE);
4584 if (es->flags & EF_FOCUSED) {
4585 DestroyCaret();
4586 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4587 EDIT_SetCaretPos(es, es->selection_end,
4588 es->flags & EF_AFTER_WRAP);
4589 ShowCaret(es->hwndSelf);
4590 }
4591 }
4592
4593
4594 /*********************************************************************
4595 *
4596 * WM_SETTEXT
4597 *
4598 * NOTES
4599 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4600 * The modified flag is reset. No notifications are sent.
4601 *
4602 * For single-line controls, reception of WM_SETTEXT triggers:
4603 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4604 *
4605 */
4606 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode)
4607 {
4608 LPWSTR text = NULL;
4609
4610 if(unicode)
4611 text = (LPWSTR)lParam;
4612 else if (lParam)
4613 {
4614 LPCSTR textA = (LPCSTR)lParam;
4615 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4616 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4617 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4618 }
4619
4620 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4621 if (text) {
4622 TRACE("%s\n", debugstr_w(text));
4623 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
4624 if(!unicode)
4625 HeapFree(GetProcessHeap(), 0, text);
4626 } else {
4627 static const WCHAR empty_stringW[] = {0};
4628 TRACE("<NULL>\n");
4629 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
4630 }
4631 es->x_offset = 0;
4632 es->flags &= ~EF_MODIFIED;
4633 EDIT_EM_SetSel(es, 0, 0, FALSE);
4634 /* Send the notification after the selection start and end have been set
4635 * edit control doesn't send notification on WM_SETTEXT
4636 * if it is multiline, or it is part of combobox
4637 */
4638 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4639 {
4640 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4641 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4642 }
4643 EDIT_EM_ScrollCaret(es);
4644 }
4645
4646
4647 /*********************************************************************
4648 *
4649 * WM_SIZE
4650 *
4651 */
4652 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
4653 {
4654 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4655 RECT rc;
4656 TRACE("width = %d, height = %d\n", width, height);
4657 SetRect(&rc, 0, 0, width, height);
4658 EDIT_SetRectNP(es, &rc);
4659 EDIT_UpdateText(es, NULL, TRUE);
4660 }
4661 }
4662
4663
4664 /*********************************************************************
4665 *
4666 * WM_STYLECHANGED
4667 *
4668 * This message is sent by SetWindowLong on having changed either the Style
4669 * or the extended style.
4670 *
4671 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4672 *
4673 * See also EDIT_WM_NCCreate
4674 *
4675 * It appears that the Windows version of the edit control allows the style
4676 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4677 * style variable which will generally be different. In this function we
4678 * update the internal style based on what changed in the externally visible
4679 * style.
4680 *
4681 * Much of this content as based upon the MSDN, especially:
4682 * Platform SDK Documentation -> User Interface Services ->
4683 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4684 * Edit Control Styles
4685 */
4686 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4687 {
4688 if (GWL_STYLE == which) {
4689 DWORD style_change_mask;
4690 DWORD new_style;
4691 /* Only a subset of changes can be applied after the control
4692 * has been created.
4693 */
4694 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4695 ES_NUMBER;
4696 if (es->style & ES_MULTILINE)
4697 style_change_mask |= ES_WANTRETURN;
4698
4699 new_style = style->styleNew & style_change_mask;
4700
4701 /* Number overrides lowercase overrides uppercase (at least it
4702 * does in Win95). However I'll bet that ES_NUMBER would be
4703 * invalid under Win 3.1.
4704 */
4705 if (new_style & ES_NUMBER) {
4706 ; /* do not override the ES_NUMBER */
4707 } else if (new_style & ES_LOWERCASE) {
4708 new_style &= ~ES_UPPERCASE;
4709 }
4710
4711 es->style = (es->style & ~style_change_mask) | new_style;
4712 } else if (GWL_EXSTYLE == which) {
4713 ; /* FIXME - what is needed here */
4714 } else {
4715 WARN ("Invalid style change %d\n",which);
4716 }
4717
4718 return 0;
4719 }
4720
4721 /*********************************************************************
4722 *
4723 * WM_SYSKEYDOWN
4724 *
4725 */
4726 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4727 {
4728 if ((key == VK_BACK) && (key_data & 0x2000)) {
4729 if (EDIT_EM_CanUndo(es))
4730 EDIT_EM_Undo(es);
4731 return 0;
4732 } else if (key == VK_UP || key == VK_DOWN) {
4733 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4734 return 0;
4735 }
4736 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4737 }
4738
4739
4740 /*********************************************************************
4741 *
4742 * WM_TIMER
4743 *
4744 */
4745 static void EDIT_WM_Timer(EDITSTATE *es)
4746 {
4747 if (es->region_posx < 0) {
4748 EDIT_MoveBackward(es, TRUE);
4749 } else if (es->region_posx > 0) {
4750 EDIT_MoveForward(es, TRUE);
4751 }
4752 /*
4753 * FIXME: gotta do some vertical scrolling here, like
4754 * EDIT_EM_LineScroll(hwnd, 0, 1);
4755 */
4756 }
4757
4758 /*********************************************************************
4759 *
4760 * WM_VSCROLL
4761 *
4762 */
4763 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4764 {
4765 INT dy;
4766
4767 if (!(es->style & ES_MULTILINE))
4768 return 0;
4769
4770 if (!(es->style & ES_AUTOVSCROLL))
4771 return 0;
4772
4773 dy = 0;
4774 switch (action) {
4775 case SB_LINEUP:
4776 case SB_LINEDOWN:
4777 case SB_PAGEUP:
4778 case SB_PAGEDOWN:
4779 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
4780 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
4781 (action == SB_PAGEUP ? "SB_PAGEUP" :
4782 "SB_PAGEDOWN"))));
4783 EDIT_EM_Scroll(es, action);
4784 return 0;
4785 case SB_TOP:
4786 TRACE("SB_TOP\n");
4787 dy = -es->y_offset;
4788 break;
4789 case SB_BOTTOM:
4790 TRACE("SB_BOTTOM\n");
4791 dy = es->line_count - 1 - es->y_offset;
4792 break;
4793 case SB_THUMBTRACK:
4794 TRACE("SB_THUMBTRACK %d\n", pos);
4795 es->flags |= EF_VSCROLL_TRACK;
4796 if(es->style & WS_VSCROLL)
4797 dy = pos - es->y_offset;
4798 else
4799 {
4800 /* Assume default scroll range 0-100 */
4801 INT vlc, new_y;
4802 /* Sanity check */
4803 if(pos < 0 || pos > 100) return 0;
4804 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4805 new_y = pos * (es->line_count - vlc) / 100;
4806 dy = es->line_count ? (new_y - es->y_offset) : 0;
4807 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4808 es->line_count, es->y_offset, pos, dy);
4809 }
4810 break;
4811 case SB_THUMBPOSITION:
4812 TRACE("SB_THUMBPOSITION %d\n", pos);
4813 es->flags &= ~EF_VSCROLL_TRACK;
4814 if(es->style & WS_VSCROLL)
4815 dy = pos - es->y_offset;
4816 else
4817 {
4818 /* Assume default scroll range 0-100 */
4819 INT vlc, new_y;
4820 /* Sanity check */
4821 if(pos < 0 || pos > 100) return 0;
4822 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4823 new_y = pos * (es->line_count - vlc) / 100;
4824 dy = es->line_count ? (new_y - es->y_offset) : 0;
4825 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4826 es->line_count, es->y_offset, pos, dy);
4827 }
4828 if (!dy)
4829 {
4830 /* force scroll info update */
4831 EDIT_UpdateScrollInfo(es);
4832 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
4833 }
4834 break;
4835 case SB_ENDSCROLL:
4836 TRACE("SB_ENDSCROLL\n");
4837 break;
4838 /*
4839 * FIXME : the next two are undocumented !
4840 * Are we doing the right thing ?
4841 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4842 * although it's also a regular control message.
4843 */
4844 case EM_GETTHUMB: /* this one is used by NT notepad */
4845 case EM_GETTHUMB16:
4846 {
4847 LRESULT ret;
4848 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4849 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4850 else
4851 {
4852 /* Assume default scroll range 0-100 */
4853 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4854 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4855 }
4856 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4857 return ret;
4858 }
4859 case EM_LINESCROLL16:
4860 TRACE("EM_LINESCROLL16 %d\n", pos);
4861 dy = pos;
4862 break;
4863
4864 default:
4865 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4866 action, action);
4867 return 0;
4868 }
4869 if (dy)
4870 EDIT_EM_LineScroll(es, 0, dy);
4871 return 0;
4872 }
4873
4874 /*********************************************************************
4875 *
4876 * EDIT_UpdateText
4877 *
4878 */
4879 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
4880 {
4881 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4882 InvalidateRgn(es->hwndSelf, hrgn, bErase);
4883 }
4884
4885
4886 /*********************************************************************
4887 *
4888 * EDIT_UpdateText
4889 *
4890 */
4891 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
4892 {
4893 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4894 InvalidateRect(es->hwndSelf, rc, bErase);
4895 }
Windows API implementation