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Fix proxy support, remove typecasts.
[wine/wine-gecko.git] / controls / edit.c
blobcd7400b4d22aacb65abb268a528f14cf8632952a
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_NUMBER (new since win95)
27 * - ES_OEMCONVERT
28 * -!ES_AUTOVSCROLL (every multi line control *is* auto vscroll)
29 * -!ES_AUTOHSCROLL (every single line control *is* auto hscroll)
30 *
31 * When there is no autoscrolling, the control should first check whether
32 * the new text would fit. If not, an EN_MAXTEXT should be sent.
33 * However, currently this would require the actual change to be made,
34 * then call EDIT_BuildLineDefs() and then find out that the new text doesn't
35 * fit. After all this, things should be put back in the state before the
36 * changes. Note that for multi line controls !ES_AUTOHSCROLL works : wordwrap.
37 *
38 */
39
40 #include "config.h"
41
42 #include <stdarg.h>
43 #include <string.h>
44 #include <stdlib.h>
45
46 #include "windef.h"
47 #include "winbase.h"
48 #include "winnt.h"
49 #include "wownt32.h"
50 #include "win.h"
51 #include "wine/winbase16.h"
52 #include "wine/winuser16.h"
53 #include "wine/unicode.h"
54 #include "controls.h"
55 #include "local.h"
56 #include "message.h"
57 #include "user.h"
58 #include "wine/debug.h"
59
60 WINE_DEFAULT_DEBUG_CHANNEL(edit);
61 WINE_DECLARE_DEBUG_CHANNEL(combo);
62 WINE_DECLARE_DEBUG_CHANNEL(relay);
63
64 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
65 FIXME: BTW, new specs say 65535 (do you dare ???) */
66 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
67 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
68 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
69 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
70
71 /*
72 * extra flags for EDITSTATE.flags field
73 */
74 #define EF_MODIFIED 0x0001 /* text has been modified */
75 #define EF_FOCUSED 0x0002 /* we have input focus */
76 #define EF_UPDATE 0x0004 /* notify parent of changed state */
77 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
78 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
79 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
80 wrapped line, instead of in front of the next character */
81 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
82
83 typedef enum
84 {
85 END_0 = 0, /* line ends with terminating '\0' character */
86 END_WRAP, /* line is wrapped */
87 END_HARD, /* line ends with a hard return '\r\n' */
88 END_SOFT, /* line ends with a soft return '\r\r\n' */
89 END_RICH /* line ends with a single '\n' */
90 } LINE_END;
91
92 typedef struct tagLINEDEF {
93 INT length; /* bruto length of a line in bytes */
94 INT net_length; /* netto length of a line in visible characters */
95 LINE_END ending;
96 INT width; /* width of the line in pixels */
97 INT index; /* line index into the buffer */
98 struct tagLINEDEF *next;
99 } LINEDEF;
100
101 typedef struct
102 {
103 BOOL is_unicode; /* how the control was created */
104 LPWSTR text; /* the actual contents of the control */
105 UINT buffer_size; /* the size of the buffer in characters */
106 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
107 HFONT font; /* NULL means standard system font */
108 INT x_offset; /* scroll offset for multi lines this is in pixels
109 for single lines it's in characters */
110 INT line_height; /* height of a screen line in pixels */
111 INT char_width; /* average character width in pixels */
112 DWORD style; /* sane version of wnd->dwStyle */
113 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
114 INT undo_insert_count; /* number of characters inserted in sequence */
115 UINT undo_position; /* character index of the insertion and deletion */
116 LPWSTR undo_text; /* deleted text */
117 UINT undo_buffer_size; /* size of the deleted text buffer */
118 INT selection_start; /* == selection_end if no selection */
119 INT selection_end; /* == current caret position */
120 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
121 INT left_margin; /* in pixels */
122 INT right_margin; /* in pixels */
123 RECT format_rect;
124 INT text_width; /* width of the widest line in pixels for multi line controls
125 and just line width for single line controls */
126 INT region_posx; /* Position of cursor relative to region: */
127 INT region_posy; /* -1: to left, 0: within, 1: to right */
128 EDITWORDBREAKPROC16 word_break_proc16;
129 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
130 INT line_count; /* number of lines */
131 INT y_offset; /* scroll offset in number of lines */
132 BOOL bCaptureState; /* flag indicating whether mouse was captured */
133 BOOL bEnableState; /* flag keeping the enable state */
134 HWND hwndSelf; /* the our window handle */
135 HWND hwndParent; /* Handle of parent for sending EN_* messages.
136 Even if parent will change, EN_* messages
137 should be sent to the first parent. */
138 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
139 /*
140 * only for multi line controls
141 */
142 INT lock_count; /* amount of re-entries in the EditWndProc */
143 INT tabs_count;
144 LPINT tabs;
145 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
146 HLOCAL hloc32W; /* our unicode local memory block */
147 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
148 or EM_SETHANDLE16 */
149 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
150 or EM_SETHANDLE */
151 } EDITSTATE;
152
153
154 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
155 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
156
157 /* used for disabled or read-only edit control */
158 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
159 do \
160 { /* Notify parent which has created this edit control */ \
161 TRACE("notification " str " sent to hwnd=%p\n", es->hwndParent); \
162 SendMessageW(es->hwndParent, WM_COMMAND, \
163 MAKEWPARAM(GetWindowLongW((es->hwndSelf),GWL_ID), wNotifyCode), \
164 (LPARAM)(es->hwndSelf)); \
165 } while(0)
166
167 /*********************************************************************
168 *
169 * Declarations
170 *
171 */
172
173 /*
174 * These functions have trivial implementations
175 * We still like to call them internally
176 * "static inline" makes them more like macro's
177 */
178 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
179 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
180 static inline void EDIT_WM_Clear(EDITSTATE *es);
181 static inline void EDIT_WM_Cut(EDITSTATE *es);
182
183 /*
184 * Helper functions only valid for one type of control
185 */
186 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
187 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
188 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
189 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
190 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
191 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
192 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
193 /*
194 * Helper functions valid for both single line _and_ multi line controls
195 */
196 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
197 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
198 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
199 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
200 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
201 static void EDIT_LockBuffer(EDITSTATE *es);
202 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
203 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
204 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
205 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
206 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
207 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
208 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
209 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
210 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
211 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
212 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
213 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
214 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
215 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
216 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
217 /*
218 * EM_XXX message handlers
219 */
220 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
221 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
222 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
223 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
224 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
225 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
226 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
227 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
228 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
229 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
230 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
231 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
232 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
233 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
234 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
235 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
236 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
237 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
238 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
239 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
240 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
241 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
242 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
243 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
244 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam);
245 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
246 static BOOL EDIT_EM_Undo(EDITSTATE *es);
247 /*
248 * WM_XXX message handlers
249 */
250 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
251 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
252 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
253 static void EDIT_WM_Copy(EDITSTATE *es);
254 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
255 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
256 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
257 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
258 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
259 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
260 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
261 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
262 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
263 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
264 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
265 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
266 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
267 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam);
268 static void EDIT_WM_Paste(EDITSTATE *es);
269 static void EDIT_WM_SetFocus(EDITSTATE *es);
270 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
271 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode);
272 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
273 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
274 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
275 static void EDIT_WM_Timer(EDITSTATE *es);
276 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
277 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
278 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
279
280 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
281 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
282
283 /*********************************************************************
284 * edit class descriptor
285 */
286 const struct builtin_class_descr EDIT_builtin_class =
287 {
288 "Edit", /* name */
289 CS_DBLCLKS | CS_PARENTDC, /* style */
290 EditWndProcA, /* procA */
291 EditWndProcW, /* procW */
292 sizeof(EDITSTATE *), /* extra */
293 IDC_IBEAM, /* cursor */
294 0 /* brush */
295 };
296
297
298 /*********************************************************************
299 *
300 * EM_CANUNDO
301 *
302 */
303 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
304 {
305 return (es->undo_insert_count || strlenW(es->undo_text));
306 }
307
308
309 /*********************************************************************
310 *
311 * EM_EMPTYUNDOBUFFER
312 *
313 */
314 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
315 {
316 es->undo_insert_count = 0;
317 *es->undo_text = '\0';
318 }
319
320
321 /*********************************************************************
322 *
323 * WM_CLEAR
324 *
325 */
326 static inline void EDIT_WM_Clear(EDITSTATE *es)
327 {
328 static const WCHAR empty_stringW[] = {0};
329
330 /* Protect read-only edit control from modification */
331 if(es->style & ES_READONLY)
332 return;
333
334 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
335 }
336
337
338 /*********************************************************************
339 *
340 * WM_CUT
341 *
342 */
343 static inline void EDIT_WM_Cut(EDITSTATE *es)
344 {
345 EDIT_WM_Copy(es);
346 EDIT_WM_Clear(es);
347 }
348
349
350 /**********************************************************************
351 * get_app_version
352 *
353 * Returns the window version in case Wine emulates a later version
354 * of windows than the application expects.
355 *
356 * In a number of cases when windows runs an application that was
357 * designed for an earlier windows version, windows reverts
358 * to "old" behaviour of that earlier version.
359 *
360 * An example is a disabled edit control that needs to be painted.
361 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
362 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
363 * applications with an expected version 0f 4.0 or higher.
364 *
365 */
366 static DWORD get_app_version(void)
367 {
368 static DWORD version;
369 if (!version)
370 {
371 DWORD dwEmulatedVersion;
372 OSVERSIONINFOW info;
373 DWORD dwProcVersion = GetProcessVersion(0);
374
375 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
376 GetVersionExW( &info );
377 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
378 /* FIXME: this may not be 100% correct; see discussion on the
379 * wine developer list in Nov 1999 */
380 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
381 }
382 return version;
383 }
384
385
386 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
387 {
388 UINT msg;
389
390 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
391 msg = WM_CTLCOLORSTATIC;
392 else
393 msg = WM_CTLCOLOREDIT;
394
395 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
396 return (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
397 }
398
399 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
400 {
401 if(unicode)
402 return DefWindowProcW(hwnd, msg, wParam, lParam);
403 else
404 return DefWindowProcA(hwnd, msg, wParam, lParam);
405 }
406
407 /*********************************************************************
408 *
409 * EditWndProc_common
410 *
411 * The messages are in the order of the actual integer values
412 * (which can be found in include/windows.h)
413 * Wherever possible the 16 bit versions are converted to
414 * the 32 bit ones, so that we can 'fall through' to the
415 * helper functions. These are mostly 32 bit (with a few
416 * exceptions, clearly indicated by a '16' extension to their
417 * names).
418 *
419 */
420 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
421 WPARAM wParam, LPARAM lParam, BOOL unicode )
422 {
423 EDITSTATE *es = (EDITSTATE *)GetWindowLongW( hwnd, 0 );
424 LRESULT result = 0;
425
426 TRACE("hwnd=%p msg=%x (%s) wparam=%x lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
427
428 if (!es && msg != WM_NCCREATE)
429 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
430 else if (msg == WM_NCCREATE)
431 return EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
432 else if (msg == WM_DESTROY)
433 return EDIT_WM_Destroy(es);
434
435
436 if (es) EDIT_LockBuffer(es);
437
438 switch (msg) {
439 case EM_GETSEL16:
440 wParam = 0;
441 lParam = 0;
442 /* fall through */
443 case EM_GETSEL:
444 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
445 break;
446
447 case EM_SETSEL16:
448 if ((short)LOWORD(lParam) == -1)
449 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
450 else
451 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
452 if (!wParam)
453 EDIT_EM_ScrollCaret(es);
454 result = 1;
455 break;
456 case EM_SETSEL:
457 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
458 EDIT_EM_ScrollCaret(es);
459 result = 1;
460 break;
461
462 case EM_GETRECT16:
463 if (lParam)
464 CONV_RECT32TO16(&es->format_rect, MapSL(lParam));
465 break;
466 case EM_GETRECT:
467 if (lParam)
468 CopyRect((LPRECT)lParam, &es->format_rect);
469 break;
470
471 case EM_SETRECT16:
472 if ((es->style & ES_MULTILINE) && lParam) {
473 RECT rc;
474 CONV_RECT16TO32(MapSL(lParam), &rc);
475 EDIT_SetRectNP(es, &rc);
476 EDIT_UpdateText(es, NULL, TRUE);
477 }
478 break;
479 case EM_SETRECT:
480 if ((es->style & ES_MULTILINE) && lParam) {
481 EDIT_SetRectNP(es, (LPRECT)lParam);
482 EDIT_UpdateText(es, NULL, TRUE);
483 }
484 break;
485
486 case EM_SETRECTNP16:
487 if ((es->style & ES_MULTILINE) && lParam) {
488 RECT rc;
489 CONV_RECT16TO32(MapSL(lParam), &rc);
490 EDIT_SetRectNP(es, &rc);
491 }
492 break;
493 case EM_SETRECTNP:
494 if ((es->style & ES_MULTILINE) && lParam)
495 EDIT_SetRectNP(es, (LPRECT)lParam);
496 break;
497
498 case EM_SCROLL16:
499 case EM_SCROLL:
500 result = EDIT_EM_Scroll(es, (INT)wParam);
501 break;
502
503 case EM_LINESCROLL16:
504 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
505 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
506 /* fall through */
507 case EM_LINESCROLL:
508 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
509 break;
510
511 case EM_SCROLLCARET16:
512 case EM_SCROLLCARET:
513 EDIT_EM_ScrollCaret(es);
514 result = 1;
515 break;
516
517 case EM_GETMODIFY16:
518 case EM_GETMODIFY:
519 result = ((es->flags & EF_MODIFIED) != 0);
520 break;
521
522 case EM_SETMODIFY16:
523 case EM_SETMODIFY:
524 if (wParam)
525 es->flags |= EF_MODIFIED;
526 else
527 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
528 break;
529
530 case EM_GETLINECOUNT16:
531 case EM_GETLINECOUNT:
532 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
533 break;
534
535 case EM_LINEINDEX16:
536 if ((INT16)wParam == -1)
537 wParam = (WPARAM)-1;
538 /* fall through */
539 case EM_LINEINDEX:
540 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
541 break;
542
543 case EM_SETHANDLE16:
544 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
545 break;
546 case EM_SETHANDLE:
547 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
548 break;
549
550 case EM_GETHANDLE16:
551 result = (LRESULT)EDIT_EM_GetHandle16(es);
552 break;
553 case EM_GETHANDLE:
554 result = (LRESULT)EDIT_EM_GetHandle(es);
555 break;
556
557 case EM_GETTHUMB16:
558 case EM_GETTHUMB:
559 result = EDIT_EM_GetThumb(es);
560 break;
561
562 /* these messages missing from specs */
563 case WM_USER+15:
564 case 0x00bf:
565 case WM_USER+16:
566 case 0x00c0:
567 case WM_USER+19:
568 case 0x00c3:
569 case WM_USER+26:
570 case 0x00ca:
571 FIXME("undocumented message 0x%x, please report\n", msg);
572 result = DefWindowProcW(hwnd, msg, wParam, lParam);
573 break;
574
575 case EM_LINELENGTH16:
576 case EM_LINELENGTH:
577 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
578 break;
579
580 case EM_REPLACESEL16:
581 lParam = (LPARAM)MapSL(lParam);
582 unicode = FALSE; /* 16-bit message is always ascii */
583 /* fall through */
584 case EM_REPLACESEL:
585 {
586 LPWSTR textW;
587
588 if(unicode)
589 textW = (LPWSTR)lParam;
590 else
591 {
592 LPSTR textA = (LPSTR)lParam;
593 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
594 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
595 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
596 }
597
598 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
599 result = 1;
600
601 if(!unicode)
602 HeapFree(GetProcessHeap(), 0, textW);
603 break;
604 }
605
606 case EM_GETLINE16:
607 lParam = (LPARAM)MapSL(lParam);
608 unicode = FALSE; /* 16-bit message is always ascii */
609 /* fall through */
610 case EM_GETLINE:
611 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
612 break;
613
614 case EM_LIMITTEXT16:
615 case EM_SETLIMITTEXT:
616 EDIT_EM_SetLimitText(es, (INT)wParam);
617 break;
618
619 case EM_CANUNDO16:
620 case EM_CANUNDO:
621 result = (LRESULT)EDIT_EM_CanUndo(es);
622 break;
623
624 case EM_UNDO16:
625 case EM_UNDO:
626 case WM_UNDO:
627 result = (LRESULT)EDIT_EM_Undo(es);
628 break;
629
630 case EM_FMTLINES16:
631 case EM_FMTLINES:
632 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
633 break;
634
635 case EM_LINEFROMCHAR16:
636 case EM_LINEFROMCHAR:
637 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
638 break;
639
640 case EM_SETTABSTOPS16:
641 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
642 break;
643 case EM_SETTABSTOPS:
644 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
645 break;
646
647 case EM_SETPASSWORDCHAR16:
648 unicode = FALSE; /* 16-bit message is always ascii */
649 /* fall through */
650 case EM_SETPASSWORDCHAR:
651 {
652 WCHAR charW = 0;
653
654 if(unicode)
655 charW = (WCHAR)wParam;
656 else
657 {
658 CHAR charA = wParam;
659 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
660 }
661
662 EDIT_EM_SetPasswordChar(es, charW);
663 break;
664 }
665
666 case EM_EMPTYUNDOBUFFER16:
667 case EM_EMPTYUNDOBUFFER:
668 EDIT_EM_EmptyUndoBuffer(es);
669 break;
670
671 case EM_GETFIRSTVISIBLELINE16:
672 result = es->y_offset;
673 break;
674 case EM_GETFIRSTVISIBLELINE:
675 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
676 break;
677
678 case EM_SETREADONLY16:
679 case EM_SETREADONLY:
680 if (wParam) {
681 SetWindowLongW( hwnd, GWL_STYLE,
682 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
683 es->style |= ES_READONLY;
684 } else {
685 SetWindowLongW( hwnd, GWL_STYLE,
686 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
687 es->style &= ~ES_READONLY;
688 }
689 result = 1;
690 break;
691
692 case EM_SETWORDBREAKPROC16:
693 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
694 break;
695 case EM_SETWORDBREAKPROC:
696 EDIT_EM_SetWordBreakProc(es, lParam);
697 break;
698
699 case EM_GETWORDBREAKPROC16:
700 result = (LRESULT)es->word_break_proc16;
701 break;
702 case EM_GETWORDBREAKPROC:
703 result = (LRESULT)es->word_break_proc;
704 break;
705
706 case EM_GETPASSWORDCHAR16:
707 unicode = FALSE; /* 16-bit message is always ascii */
708 /* fall through */
709 case EM_GETPASSWORDCHAR:
710 {
711 if(unicode)
712 result = es->password_char;
713 else
714 {
715 WCHAR charW = es->password_char;
716 CHAR charA = 0;
717 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
718 result = charA;
719 }
720 break;
721 }
722
723 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
724
725 case EM_SETMARGINS:
726 EDIT_EM_SetMargins(es, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
727 break;
728
729 case EM_GETMARGINS:
730 result = MAKELONG(es->left_margin, es->right_margin);
731 break;
732
733 case EM_GETLIMITTEXT:
734 result = es->buffer_limit;
735 break;
736
737 case EM_POSFROMCHAR:
738 result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
739 break;
740
741 case EM_CHARFROMPOS:
742 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
743 break;
744
745 /* End of the EM_ messages which were in numerical order; what order
746 * are these in? vaguely alphabetical?
747 */
748
749 case WM_GETDLGCODE:
750 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
751
752 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
753 {
754 int vk = (int)((LPMSG)lParam)->wParam;
755
756 if (vk == VK_RETURN && (GetWindowLongW( hwnd, GWL_STYLE ) & ES_WANTRETURN))
757 {
758 result |= DLGC_WANTMESSAGE;
759 }
760 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
761 {
762 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
763 result |= DLGC_WANTMESSAGE;
764 }
765 }
766 break;
767
768 case WM_IME_CHAR:
769 if (!unicode)
770 {
771 WCHAR charW;
772 CHAR strng[2];
773
774 strng[0] = wParam >> 8;
775 strng[1] = wParam & 0xff;
776 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
777 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
778 EDIT_WM_Char(es, charW);
779 break;
780 }
781 /* fall through */
782 case WM_CHAR:
783 {
784 WCHAR charW;
785
786 if(unicode)
787 charW = wParam;
788 else
789 {
790 CHAR charA = wParam;
791 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
792 }
793
794 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
795 {
796 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
797 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
798 break;
799 }
800 EDIT_WM_Char(es, charW);
801 break;
802 }
803
804 case WM_CLEAR:
805 EDIT_WM_Clear(es);
806 break;
807
808 case WM_COMMAND:
809 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
810 break;
811
812 case WM_CONTEXTMENU:
813 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
814 break;
815
816 case WM_COPY:
817 EDIT_WM_Copy(es);
818 break;
819
820 case WM_CREATE:
821 if(unicode)
822 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
823 else
824 {
825 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
826 LPWSTR nameW = NULL;
827 if(nameA)
828 {
829 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
830 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
831 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
832 }
833 result = EDIT_WM_Create(es, nameW);
834 if(nameW)
835 HeapFree(GetProcessHeap(), 0, nameW);
836 }
837 break;
838
839 case WM_CUT:
840 EDIT_WM_Cut(es);
841 break;
842
843 case WM_ENABLE:
844 es->bEnableState = (BOOL) wParam;
845 EDIT_UpdateText(es, NULL, TRUE);
846 break;
847
848 case WM_ERASEBKGND:
849 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
850 break;
851
852 case WM_GETFONT:
853 result = (LRESULT)es->font;
854 break;
855
856 case WM_GETTEXT:
857 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
858 break;
859
860 case WM_GETTEXTLENGTH:
861 if (unicode) result = strlenW(es->text);
862 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
863 NULL, 0, NULL, NULL );
864 break;
865
866 case WM_HSCROLL:
867 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
868 break;
869
870 case WM_KEYDOWN:
871 result = EDIT_WM_KeyDown(es, (INT)wParam);
872 break;
873
874 case WM_KILLFOCUS:
875 result = EDIT_WM_KillFocus(es);
876 break;
877
878 case WM_LBUTTONDBLCLK:
879 result = EDIT_WM_LButtonDblClk(es);
880 break;
881
882 case WM_LBUTTONDOWN:
883 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
884 break;
885
886 case WM_LBUTTONUP:
887 result = EDIT_WM_LButtonUp(es);
888 break;
889
890 case WM_MBUTTONDOWN:
891 result = EDIT_WM_MButtonDown(es);
892 break;
893
894 case WM_MOUSEACTIVATE:
895 result = MA_ACTIVATE;
896 break;
897
898 case WM_MOUSEMOVE:
899 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
900 break;
901
902 case WM_PAINT:
903 EDIT_WM_Paint(es, wParam);
904 break;
905
906 case WM_PASTE:
907 EDIT_WM_Paste(es);
908 break;
909
910 case WM_SETFOCUS:
911 EDIT_WM_SetFocus(es);
912 break;
913
914 case WM_SETFONT:
915 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
916 break;
917
918 case WM_SETREDRAW:
919 /* FIXME: actually set an internal flag and behave accordingly */
920 break;
921
922 case WM_SETTEXT:
923 EDIT_WM_SetText(es, lParam, unicode);
924 result = TRUE;
925 break;
926
927 case WM_SIZE:
928 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
929 break;
930
931 case WM_STYLECHANGED:
932 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
933 break;
934
935 case WM_STYLECHANGING:
936 result = 0; /* See EDIT_WM_StyleChanged */
937 break;
938
939 case WM_SYSKEYDOWN:
940 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
941 break;
942
943 case WM_TIMER:
944 EDIT_WM_Timer(es);
945 break;
946
947 case WM_VSCROLL:
948 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
949 break;
950
951 case WM_MOUSEWHEEL:
952 {
953 int gcWheelDelta = 0;
954 UINT pulScrollLines = 3;
955 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
956
957 if (wParam & (MK_SHIFT | MK_CONTROL)) {
958 result = DefWindowProcW(hwnd, msg, wParam, lParam);
959 break;
960 }
961 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
962 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
963 {
964 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
965 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
966 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
967 }
968 }
969 break;
970 default:
971 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
972 break;
973 }
974
975 if (es) EDIT_UnlockBuffer(es, FALSE);
976
977 return result;
978 }
979
980 /*********************************************************************
981 *
982 * EditWndProcW (USER32.@)
983 */
984 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
985 {
986 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
987 }
988
989 /*********************************************************************
990 *
991 * EditWndProc (USER32.@)
992 */
993 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
994 {
995 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
996 }
997
998 /*********************************************************************
999 *
1000 * EDIT_BuildLineDefs_ML
1001 *
1002 * Build linked list of text lines.
1003 * Lines can end with '\0' (last line), a character (if it is wrapped),
1004 * a soft return '\r\r\n' or a hard return '\r\n'
1005 *
1006 */
1007 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1008 {
1009 HDC dc;
1010 HFONT old_font = 0;
1011 LPWSTR current_position, cp;
1012 INT fw;
1013 LINEDEF *current_line;
1014 LINEDEF *previous_line;
1015 LINEDEF *start_line;
1016 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1017 INT line_count = es->line_count;
1018 INT orig_net_length;
1019 RECT rc;
1020
1021 if (istart == iend && delta == 0)
1022 return;
1023
1024 dc = GetDC(es->hwndSelf);
1025 if (es->font)
1026 old_font = SelectObject(dc, es->font);
1027
1028 previous_line = NULL;
1029 current_line = es->first_line_def;
1030
1031 /* Find starting line. istart must lie inside an existing line or
1032 * at the end of buffer */
1033 do {
1034 if (istart < current_line->index + current_line->length ||
1035 current_line->ending == END_0)
1036 break;
1037
1038 previous_line = current_line;
1039 current_line = current_line->next;
1040 line_index++;
1041 } while (current_line);
1042
1043 if (!current_line) /* Error occurred start is not inside previous buffer */
1044 {
1045 FIXME(" modification occurred outside buffer\n");
1046 ReleaseDC(es->hwndSelf, dc);
1047 return;
1048 }
1049
1050 /* Remember start of modifications in order to calculate update region */
1051 nstart_line = line_index;
1052 nstart_index = current_line->index;
1053
1054 /* We must start to reformat from the previous line since the modifications
1055 * may have caused the line to wrap upwards. */
1056 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1057 {
1058 line_index--;
1059 current_line = previous_line;
1060 }
1061 start_line = current_line;
1062
1063 fw = es->format_rect.right - es->format_rect.left;
1064 current_position = es->text + current_line->index;
1065 do {
1066 if (current_line != start_line)
1067 {
1068 if (!current_line || current_line->index + delta > current_position - es->text)
1069 {
1070 /* The buffer has been expanded, create a new line and
1071 insert it into the link list */
1072 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1073 new_line->next = previous_line->next;
1074 previous_line->next = new_line;
1075 current_line = new_line;
1076 es->line_count++;
1077 }
1078 else if (current_line->index + delta < current_position - es->text)
1079 {
1080 /* The previous line merged with this line so we delete this extra entry */
1081 previous_line->next = current_line->next;
1082 HeapFree(GetProcessHeap(), 0, current_line);
1083 current_line = previous_line->next;
1084 es->line_count--;
1085 continue;
1086 }
1087 else /* current_line->index + delta == current_position */
1088 {
1089 if (current_position - es->text > iend)
1090 break; /* We reached end of line modifications */
1091 /* else recalulate this line */
1092 }
1093 }
1094
1095 current_line->index = current_position - es->text;
1096 orig_net_length = current_line->net_length;
1097
1098 /* Find end of line */
1099 cp = current_position;
1100 while (*cp) {
1101 if (*cp == '\n') break;
1102 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1103 break;
1104 cp++;
1105 }
1106
1107 /* Mark type of line termination */
1108 if (!(*cp)) {
1109 current_line->ending = END_0;
1110 current_line->net_length = strlenW(current_position);
1111 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1112 current_line->ending = END_SOFT;
1113 current_line->net_length = cp - current_position - 1;
1114 } else if (*cp == '\n') {
1115 current_line->ending = END_RICH;
1116 current_line->net_length = cp - current_position;
1117 } else {
1118 current_line->ending = END_HARD;
1119 current_line->net_length = cp - current_position;
1120 }
1121
1122 /* Calculate line width */
1123 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1124 current_position, current_line->net_length,
1125 es->tabs_count, es->tabs));
1126
1127 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1128 if (!(es->style & ES_AUTOHSCROLL)) {
1129 if (current_line->width > fw) {
1130 INT next = 0;
1131 INT prev;
1132 do {
1133 prev = next;
1134 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1135 prev + 1, current_line->net_length, WB_RIGHT);
1136 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1137 current_position, next, es->tabs_count, es->tabs));
1138 } while (current_line->width <= fw);
1139 if (!prev) { /* Didn't find a line break so force a break */
1140 next = 0;
1141 do {
1142 prev = next;
1143 next++;
1144 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1145 current_position, next, es->tabs_count, es->tabs));
1146 } while (current_line->width <= fw);
1147 if (!prev)
1148 prev = 1;
1149 }
1150
1151 /* If the first line we are calculating, wrapped before istart, we must
1152 * adjust istart in order for this to be reflected in the update region. */
1153 if (current_line->index == nstart_index && istart > current_line->index + prev)
1154 istart = current_line->index + prev;
1155 /* else if we are updating the previous line before the first line we
1156 * are re-calculating and it expanded */
1157 else if (current_line == start_line &&
1158 current_line->index != nstart_index && orig_net_length < prev)
1159 {
1160 /* Line expanded due to an upwards line wrap so we must partially include
1161 * previous line in update region */
1162 nstart_line = line_index;
1163 nstart_index = current_line->index;
1164 istart = current_line->index + orig_net_length;
1165 }
1166
1167 current_line->net_length = prev;
1168 current_line->ending = END_WRAP;
1169 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1170 current_line->net_length, es->tabs_count, es->tabs));
1171 }
1172 else if (orig_net_length < current_line->net_length &&
1173 current_line == start_line &&
1174 current_line->index != nstart_index) {
1175 /* The previous line expanded but it's still not as wide as the client rect */
1176 /* The expansion is due to an upwards line wrap so we must partially include
1177 it in the update region */
1178 nstart_line = line_index;
1179 nstart_index = current_line->index;
1180 istart = current_line->index + orig_net_length;
1181 }
1182 }
1183
1184
1185 /* Adjust length to include line termination */
1186 switch (current_line->ending) {
1187 case END_SOFT:
1188 current_line->length = current_line->net_length + 3;
1189 break;
1190 case END_RICH:
1191 current_line->length = current_line->net_length + 1;
1192 break;
1193 case END_HARD:
1194 current_line->length = current_line->net_length + 2;
1195 break;
1196 case END_WRAP:
1197 case END_0:
1198 current_line->length = current_line->net_length;
1199 break;
1200 }
1201 es->text_width = max(es->text_width, current_line->width);
1202 current_position += current_line->length;
1203 previous_line = current_line;
1204 current_line = current_line->next;
1205 line_index++;
1206 } while (previous_line->ending != END_0);
1207
1208 /* Finish adjusting line indexes by delta or remove hanging lines */
1209 if (previous_line->ending == END_0)
1210 {
1211 LINEDEF *pnext = NULL;
1212
1213 previous_line->next = NULL;
1214 while (current_line)
1215 {
1216 pnext = current_line->next;
1217 HeapFree(GetProcessHeap(), 0, current_line);
1218 current_line = pnext;
1219 es->line_count--;
1220 }
1221 }
1222 else
1223 {
1224 while (current_line)
1225 {
1226 current_line->index += delta;
1227 current_line = current_line->next;
1228 }
1229 }
1230
1231 /* Calculate rest of modification rectangle */
1232 if (hrgn)
1233 {
1234 HRGN tmphrgn;
1235 /*
1236 * We calculate two rectangles. One for the first line which may have
1237 * an indent with respect to the format rect. The other is a format-width
1238 * rectangle that spans the rest of the lines that changed or moved.
1239 */
1240 rc.top = es->format_rect.top + nstart_line * es->line_height -
1241 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1242 rc.bottom = rc.top + es->line_height;
1243 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1244 es->text + nstart_index, istart - nstart_index,
1245 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1246 rc.right = es->format_rect.right;
1247 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1248
1249 rc.top = rc.bottom;
1250 rc.left = es->format_rect.left;
1251 rc.right = es->format_rect.right;
1252 /*
1253 * If lines were added or removed we must re-paint the remainder of the
1254 * lines since the remaining lines were either shifted up or down.
1255 */
1256 if (line_count < es->line_count) /* We added lines */
1257 rc.bottom = es->line_count * es->line_height;
1258 else if (line_count > es->line_count) /* We removed lines */
1259 rc.bottom = line_count * es->line_height;
1260 else
1261 rc.bottom = line_index * es->line_height;
1262 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1263 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1264 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1265 DeleteObject(tmphrgn);
1266 }
1267
1268 if (es->font)
1269 SelectObject(dc, old_font);
1270
1271 ReleaseDC(es->hwndSelf, dc);
1272 }
1273
1274 /*********************************************************************
1275 *
1276 * EDIT_CalcLineWidth_SL
1277 *
1278 */
1279 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1280 {
1281 es->text_width = (short)LOWORD(EDIT_EM_PosFromChar(es, strlenW(es->text), FALSE));
1282 }
1283
1284 /*********************************************************************
1285 *
1286 * EDIT_CallWordBreakProc
1287 *
1288 * Call appropriate WordBreakProc (internal or external).
1289 *
1290 * Note: The "start" argument should always be an index referring
1291 * to es->text. The actual wordbreak proc might be
1292 * 16 bit, so we can't always pass any 32 bit LPSTR.
1293 * Hence we assume that es->text is the buffer that holds
1294 * the string under examination (we can decide this for ourselves).
1295 *
1296 */
1297 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1298 {
1299 INT ret, iWndsLocks;
1300
1301 /* To avoid any deadlocks, all the locks on the window structures
1302 must be suspended before the control is passed to the application */
1303 iWndsLocks = WIN_SuspendWndsLock();
1304
1305 if (es->word_break_proc16) {
1306 HGLOBAL16 hglob16;
1307 SEGPTR segptr;
1308 INT countA;
1309 WORD args[5];
1310 DWORD result;
1311
1312 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1313 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1314 segptr = K32WOWGlobalLock16(hglob16);
1315 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1316 args[4] = SELECTOROF(segptr);
1317 args[3] = OFFSETOF(segptr);
1318 args[2] = index;
1319 args[1] = countA;
1320 args[0] = action;
1321 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1322 ret = LOWORD(result);
1323 GlobalUnlock16(hglob16);
1324 GlobalFree16(hglob16);
1325 }
1326 else if (es->word_break_proc)
1327 {
1328 if(es->is_unicode)
1329 {
1330 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1331
1332 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1333 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1334 ret = wbpW(es->text + start, index, count, action);
1335 }
1336 else
1337 {
1338 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1339 INT countA;
1340 CHAR *textA;
1341
1342 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1343 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1344 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1345 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1346 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1347 ret = wbpA(textA, index, countA, action);
1348 HeapFree(GetProcessHeap(), 0, textA);
1349 }
1350 }
1351 else
1352 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1353
1354 WIN_RestoreWndsLock(iWndsLocks);
1355 return ret;
1356 }
1357
1358
1359 /*********************************************************************
1360 *
1361 * EDIT_CharFromPos
1362 *
1363 * Beware: This is not the function called on EM_CHARFROMPOS
1364 * The position _can_ be outside the formatting / client
1365 * rectangle
1366 * The return value is only the character index
1367 *
1368 */
1369 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1370 {
1371 INT index;
1372 HDC dc;
1373 HFONT old_font = 0;
1374
1375 if (es->style & ES_MULTILINE) {
1376 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1377 INT line_index = 0;
1378 LINEDEF *line_def = es->first_line_def;
1379 INT low, high;
1380 while ((line > 0) && line_def->next) {
1381 line_index += line_def->length;
1382 line_def = line_def->next;
1383 line--;
1384 }
1385 x += es->x_offset - es->format_rect.left;
1386 if (x >= line_def->width) {
1387 if (after_wrap)
1388 *after_wrap = (line_def->ending == END_WRAP);
1389 return line_index + line_def->net_length;
1390 }
1391 if (x <= 0) {
1392 if (after_wrap)
1393 *after_wrap = FALSE;
1394 return line_index;
1395 }
1396 dc = GetDC(es->hwndSelf);
1397 if (es->font)
1398 old_font = SelectObject(dc, es->font);
1399 low = line_index + 1;
1400 high = line_index + line_def->net_length + 1;
1401 while (low < high - 1)
1402 {
1403 INT mid = (low + high) / 2;
1404 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1405 else low = mid;
1406 }
1407 index = low;
1408
1409 if (after_wrap)
1410 *after_wrap = ((index == line_index + line_def->net_length) &&
1411 (line_def->ending == END_WRAP));
1412 } else {
1413 LPWSTR text;
1414 SIZE size;
1415 if (after_wrap)
1416 *after_wrap = FALSE;
1417 x -= es->format_rect.left;
1418 if (!x)
1419 return es->x_offset;
1420 text = EDIT_GetPasswordPointer_SL(es);
1421 dc = GetDC(es->hwndSelf);
1422 if (es->font)
1423 old_font = SelectObject(dc, es->font);
1424 if (x < 0)
1425 {
1426 INT low = 0;
1427 INT high = es->x_offset;
1428 while (low < high - 1)
1429 {
1430 INT mid = (low + high) / 2;
1431 GetTextExtentPoint32W( dc, text + mid,
1432 es->x_offset - mid, &size );
1433 if (size.cx > -x) low = mid;
1434 else high = mid;
1435 }
1436 index = low;
1437 }
1438 else
1439 {
1440 INT low = es->x_offset;
1441 INT high = strlenW(es->text) + 1;
1442 while (low < high - 1)
1443 {
1444 INT mid = (low + high) / 2;
1445 GetTextExtentPoint32W( dc, text + es->x_offset,
1446 mid - es->x_offset, &size );
1447 if (size.cx > x) high = mid;
1448 else low = mid;
1449 }
1450 index = low;
1451 }
1452 if (es->style & ES_PASSWORD)
1453 HeapFree(GetProcessHeap(), 0, text);
1454 }
1455 if (es->font)
1456 SelectObject(dc, old_font);
1457 ReleaseDC(es->hwndSelf, dc);
1458 return index;
1459 }
1460
1461
1462 /*********************************************************************
1463 *
1464 * EDIT_ConfinePoint
1465 *
1466 * adjusts the point to be within the formatting rectangle
1467 * (so CharFromPos returns the nearest _visible_ character)
1468 *
1469 */
1470 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1471 {
1472 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1473 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1474 }
1475
1476
1477 /*********************************************************************
1478 *
1479 * EDIT_GetLineRect
1480 *
1481 * Calculates the bounding rectangle for a line from a starting
1482 * column to an ending column.
1483 *
1484 */
1485 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1486 {
1487 INT line_index = EDIT_EM_LineIndex(es, line);
1488
1489 if (es->style & ES_MULTILINE)
1490 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1491 else
1492 rc->top = es->format_rect.top;
1493 rc->bottom = rc->top + es->line_height;
1494 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1495 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1496 }
1497
1498
1499 /*********************************************************************
1500 *
1501 * EDIT_GetPasswordPointer_SL
1502 *
1503 * note: caller should free the (optionally) allocated buffer
1504 *
1505 */
1506 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1507 {
1508 if (es->style & ES_PASSWORD) {
1509 INT len = strlenW(es->text);
1510 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1511 text[len] = '\0';
1512 while(len) text[--len] = es->password_char;
1513 return text;
1514 } else
1515 return es->text;
1516 }
1517
1518
1519 /*********************************************************************
1520 *
1521 * EDIT_LockBuffer
1522 *
1523 * This acts as a LOCAL_Lock(), but it locks only once. This way
1524 * you can call it whenever you like, without unlocking.
1525 *
1526 * Initially the edit control allocates a HLOCAL32 buffer
1527 * (32 bit linear memory handler). However, 16 bit application
1528 * might send a EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1529 * handler). From that moment on we have to keep using this 16 bit memory
1530 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1531 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1532 * conversion.
1533 *
1534 */
1535 static void EDIT_LockBuffer(EDITSTATE *es)
1536 {
1537 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
1538 if (!es->text) {
1539 CHAR *textA = NULL;
1540 UINT countA = 0;
1541 BOOL _16bit = FALSE;
1542
1543 if(es->hloc32W)
1544 {
1545 if(es->hloc32A)
1546 {
1547 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1548 textA = LocalLock(es->hloc32A);
1549 countA = strlen(textA) + 1;
1550 }
1551 else if(es->hloc16)
1552 {
1553 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1554 textA = LOCAL_Lock(hInstance, es->hloc16);
1555 countA = strlen(textA) + 1;
1556 _16bit = TRUE;
1557 }
1558 }
1559 else {
1560 ERR("no buffer ... please report\n");
1561 return;
1562 }
1563
1564 if(textA)
1565 {
1566 HLOCAL hloc32W_new;
1567 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1568 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1569 if(countW_new > es->buffer_size + 1)
1570 {
1571 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1572 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1573 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1574 if(hloc32W_new)
1575 {
1576 es->hloc32W = hloc32W_new;
1577 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1578 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1579 }
1580 else
1581 WARN("FAILED! Will synchronize partially\n");
1582 }
1583 }
1584
1585 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1586 es->text = LocalLock(es->hloc32W);
1587
1588 if(textA)
1589 {
1590 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1591 if(_16bit)
1592 LOCAL_Unlock(hInstance, es->hloc16);
1593 else
1594 LocalUnlock(es->hloc32A);
1595 }
1596 }
1597 es->lock_count++;
1598 }
1599
1600
1601 /*********************************************************************
1602 *
1603 * EDIT_SL_InvalidateText
1604 *
1605 * Called from EDIT_InvalidateText().
1606 * Does the job for single-line controls only.
1607 *
1608 */
1609 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1610 {
1611 RECT line_rect;
1612 RECT rc;
1613
1614 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1615 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1616 EDIT_UpdateText(es, &rc, TRUE);
1617 }
1618
1619
1620 /*********************************************************************
1621 *
1622 * EDIT_ML_InvalidateText
1623 *
1624 * Called from EDIT_InvalidateText().
1625 * Does the job for multi-line controls only.
1626 *
1627 */
1628 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1629 {
1630 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1631 INT sl = EDIT_EM_LineFromChar(es, start);
1632 INT el = EDIT_EM_LineFromChar(es, end);
1633 INT sc;
1634 INT ec;
1635 RECT rc1;
1636 RECT rcWnd;
1637 RECT rcLine;
1638 RECT rcUpdate;
1639 INT l;
1640
1641 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1642 return;
1643
1644 sc = start - EDIT_EM_LineIndex(es, sl);
1645 ec = end - EDIT_EM_LineIndex(es, el);
1646 if (sl < es->y_offset) {
1647 sl = es->y_offset;
1648 sc = 0;
1649 }
1650 if (el > es->y_offset + vlc) {
1651 el = es->y_offset + vlc;
1652 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1653 }
1654 GetClientRect(es->hwndSelf, &rc1);
1655 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1656 if (sl == el) {
1657 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1658 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1659 EDIT_UpdateText(es, &rcUpdate, TRUE);
1660 } else {
1661 EDIT_GetLineRect(es, sl, sc,
1662 EDIT_EM_LineLength(es,
1663 EDIT_EM_LineIndex(es, sl)),
1664 &rcLine);
1665 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1666 EDIT_UpdateText(es, &rcUpdate, TRUE);
1667 for (l = sl + 1 ; l < el ; l++) {
1668 EDIT_GetLineRect(es, l, 0,
1669 EDIT_EM_LineLength(es,
1670 EDIT_EM_LineIndex(es, l)),
1671 &rcLine);
1672 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1673 EDIT_UpdateText(es, &rcUpdate, TRUE);
1674 }
1675 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1676 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1677 EDIT_UpdateText(es, &rcUpdate, TRUE);
1678 }
1679 }
1680
1681
1682 /*********************************************************************
1683 *
1684 * EDIT_InvalidateText
1685 *
1686 * Invalidate the text from offset start upto, but not including,
1687 * offset end. Useful for (re)painting the selection.
1688 * Regions outside the linewidth are not invalidated.
1689 * end == -1 means end == TextLength.
1690 * start and end need not be ordered.
1691 *
1692 */
1693 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1694 {
1695 if (end == start)
1696 return;
1697
1698 if (end == -1)
1699 end = strlenW(es->text);
1700
1701 if (end < start) {
1702 INT tmp = start;
1703 start = end;
1704 end = tmp;
1705 }
1706
1707 if (es->style & ES_MULTILINE)
1708 EDIT_ML_InvalidateText(es, start, end);
1709 else
1710 EDIT_SL_InvalidateText(es, start, end);
1711 }
1712
1713
1714 /*********************************************************************
1715 *
1716 * EDIT_MakeFit
1717 *
1718 * Try to fit size + 1 characters in the buffer.
1719 */
1720 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1721 {
1722 HLOCAL hNew32W;
1723
1724 if (size <= es->buffer_size)
1725 return TRUE;
1726
1727 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1728
1729 /* Force edit to unlock it's buffer. es->text now NULL */
1730 EDIT_UnlockBuffer(es, TRUE);
1731
1732 if (es->hloc32W) {
1733 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1734 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1735 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1736 es->hloc32W = hNew32W;
1737 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1738 }
1739 }
1740
1741 EDIT_LockBuffer(es);
1742
1743 if (es->buffer_size < size) {
1744 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1745 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1746 return FALSE;
1747 } else {
1748 TRACE("We now have %d+1\n", es->buffer_size);
1749 return TRUE;
1750 }
1751 }
1752
1753
1754 /*********************************************************************
1755 *
1756 * EDIT_MakeUndoFit
1757 *
1758 * Try to fit size + 1 bytes in the undo buffer.
1759 *
1760 */
1761 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1762 {
1763 UINT alloc_size;
1764
1765 if (size <= es->undo_buffer_size)
1766 return TRUE;
1767
1768 TRACE("trying to ReAlloc to %d+1\n", size);
1769
1770 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1771 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1772 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1773 return TRUE;
1774 }
1775 else
1776 {
1777 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1778 return FALSE;
1779 }
1780 }
1781
1782
1783 /*********************************************************************
1784 *
1785 * EDIT_MoveBackward
1786 *
1787 */
1788 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1789 {
1790 INT e = es->selection_end;
1791
1792 if (e) {
1793 e--;
1794 if ((es->style & ES_MULTILINE) && e &&
1795 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1796 e--;
1797 if (e && (es->text[e - 1] == '\r'))
1798 e--;
1799 }
1800 }
1801 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1802 EDIT_EM_ScrollCaret(es);
1803 }
1804
1805
1806 /*********************************************************************
1807 *
1808 * EDIT_MoveDown_ML
1809 *
1810 * Only for multi line controls
1811 * Move the caret one line down, on a column with the nearest
1812 * x coordinate on the screen (might be a different column).
1813 *
1814 */
1815 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1816 {
1817 INT s = es->selection_start;
1818 INT e = es->selection_end;
1819 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1820 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1821 INT x = (short)LOWORD(pos);
1822 INT y = (short)HIWORD(pos);
1823
1824 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1825 if (!extend)
1826 s = e;
1827 EDIT_EM_SetSel(es, s, e, after_wrap);
1828 EDIT_EM_ScrollCaret(es);
1829 }
1830
1831
1832 /*********************************************************************
1833 *
1834 * EDIT_MoveEnd
1835 *
1836 */
1837 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1838 {
1839 BOOL after_wrap = FALSE;
1840 INT e;
1841
1842 /* Pass a high value in x to make sure of receiving the end of the line */
1843 if (es->style & ES_MULTILINE)
1844 e = EDIT_CharFromPos(es, 0x3fffffff,
1845 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1846 else
1847 e = strlenW(es->text);
1848 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1849 EDIT_EM_ScrollCaret(es);
1850 }
1851
1852
1853 /*********************************************************************
1854 *
1855 * EDIT_MoveForward
1856 *
1857 */
1858 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1859 {
1860 INT e = es->selection_end;
1861
1862 if (es->text[e]) {
1863 e++;
1864 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1865 if (es->text[e] == '\n')
1866 e++;
1867 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1868 e += 2;
1869 }
1870 }
1871 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1872 EDIT_EM_ScrollCaret(es);
1873 }
1874
1875
1876 /*********************************************************************
1877 *
1878 * EDIT_MoveHome
1879 *
1880 * Home key: move to beginning of line.
1881 *
1882 */
1883 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1884 {
1885 INT e;
1886
1887 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1888 if (es->style & ES_MULTILINE)
1889 e = EDIT_CharFromPos(es, -es->x_offset,
1890 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1891 else
1892 e = 0;
1893 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1894 EDIT_EM_ScrollCaret(es);
1895 }
1896
1897
1898 /*********************************************************************
1899 *
1900 * EDIT_MovePageDown_ML
1901 *
1902 * Only for multi line controls
1903 * Move the caret one page down, on a column with the nearest
1904 * x coordinate on the screen (might be a different column).
1905 *
1906 */
1907 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1908 {
1909 INT s = es->selection_start;
1910 INT e = es->selection_end;
1911 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1912 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1913 INT x = (short)LOWORD(pos);
1914 INT y = (short)HIWORD(pos);
1915
1916 e = EDIT_CharFromPos(es, x,
1917 y + (es->format_rect.bottom - es->format_rect.top),
1918 &after_wrap);
1919 if (!extend)
1920 s = e;
1921 EDIT_EM_SetSel(es, s, e, after_wrap);
1922 EDIT_EM_ScrollCaret(es);
1923 }
1924
1925
1926 /*********************************************************************
1927 *
1928 * EDIT_MovePageUp_ML
1929 *
1930 * Only for multi line controls
1931 * Move the caret one page up, on a column with the nearest
1932 * x coordinate on the screen (might be a different column).
1933 *
1934 */
1935 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1936 {
1937 INT s = es->selection_start;
1938 INT e = es->selection_end;
1939 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1940 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1941 INT x = (short)LOWORD(pos);
1942 INT y = (short)HIWORD(pos);
1943
1944 e = EDIT_CharFromPos(es, x,
1945 y - (es->format_rect.bottom - es->format_rect.top),
1946 &after_wrap);
1947 if (!extend)
1948 s = e;
1949 EDIT_EM_SetSel(es, s, e, after_wrap);
1950 EDIT_EM_ScrollCaret(es);
1951 }
1952
1953
1954 /*********************************************************************
1955 *
1956 * EDIT_MoveUp_ML
1957 *
1958 * Only for multi line controls
1959 * Move the caret one line up, on a column with the nearest
1960 * x coordinate on the screen (might be a different column).
1961 *
1962 */
1963 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1964 {
1965 INT s = es->selection_start;
1966 INT e = es->selection_end;
1967 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1968 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1969 INT x = (short)LOWORD(pos);
1970 INT y = (short)HIWORD(pos);
1971
1972 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1973 if (!extend)
1974 s = e;
1975 EDIT_EM_SetSel(es, s, e, after_wrap);
1976 EDIT_EM_ScrollCaret(es);
1977 }
1978
1979
1980 /*********************************************************************
1981 *
1982 * EDIT_MoveWordBackward
1983 *
1984 */
1985 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1986 {
1987 INT s = es->selection_start;
1988 INT e = es->selection_end;
1989 INT l;
1990 INT ll;
1991 INT li;
1992
1993 l = EDIT_EM_LineFromChar(es, e);
1994 ll = EDIT_EM_LineLength(es, e);
1995 li = EDIT_EM_LineIndex(es, l);
1996 if (e - li == 0) {
1997 if (l) {
1998 li = EDIT_EM_LineIndex(es, l - 1);
1999 e = li + EDIT_EM_LineLength(es, li);
2000 }
2001 } else {
2002 e = li + (INT)EDIT_CallWordBreakProc(es,
2003 li, e - li, ll, WB_LEFT);
2004 }
2005 if (!extend)
2006 s = e;
2007 EDIT_EM_SetSel(es, s, e, FALSE);
2008 EDIT_EM_ScrollCaret(es);
2009 }
2010
2011
2012 /*********************************************************************
2013 *
2014 * EDIT_MoveWordForward
2015 *
2016 */
2017 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2018 {
2019 INT s = es->selection_start;
2020 INT e = es->selection_end;
2021 INT l;
2022 INT ll;
2023 INT li;
2024
2025 l = EDIT_EM_LineFromChar(es, e);
2026 ll = EDIT_EM_LineLength(es, e);
2027 li = EDIT_EM_LineIndex(es, l);
2028 if (e - li == ll) {
2029 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2030 e = EDIT_EM_LineIndex(es, l + 1);
2031 } else {
2032 e = li + EDIT_CallWordBreakProc(es,
2033 li, e - li + 1, ll, WB_RIGHT);
2034 }
2035 if (!extend)
2036 s = e;
2037 EDIT_EM_SetSel(es, s, e, FALSE);
2038 EDIT_EM_ScrollCaret(es);
2039 }
2040
2041
2042 /*********************************************************************
2043 *
2044 * EDIT_PaintLine
2045 *
2046 */
2047 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2048 {
2049 INT s = es->selection_start;
2050 INT e = es->selection_end;
2051 INT li;
2052 INT ll;
2053 INT x;
2054 INT y;
2055 LRESULT pos;
2056
2057 if (es->style & ES_MULTILINE) {
2058 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2059 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2060 return;
2061 } else if (line)
2062 return;
2063
2064 TRACE("line=%d\n", line);
2065
2066 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2067 x = (short)LOWORD(pos);
2068 y = (short)HIWORD(pos);
2069 li = EDIT_EM_LineIndex(es, line);
2070 ll = EDIT_EM_LineLength(es, li);
2071 s = min(es->selection_start, es->selection_end);
2072 e = max(es->selection_start, es->selection_end);
2073 s = min(li + ll, max(li, s));
2074 e = min(li + ll, max(li, e));
2075 if (rev && (s != e) &&
2076 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2077 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2078 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2079 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2080 } else
2081 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2082 }
2083
2084
2085 /*********************************************************************
2086 *
2087 * EDIT_PaintText
2088 *
2089 */
2090 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2091 {
2092 COLORREF BkColor;
2093 COLORREF TextColor;
2094 INT ret;
2095 INT li;
2096 INT BkMode;
2097 SIZE size;
2098
2099 if (!count)
2100 return 0;
2101 BkMode = GetBkMode(dc);
2102 BkColor = GetBkColor(dc);
2103 TextColor = GetTextColor(dc);
2104 if (rev) {
2105 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2106 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2107 SetBkMode( dc, OPAQUE);
2108 }
2109 li = EDIT_EM_LineIndex(es, line);
2110 if (es->style & ES_MULTILINE) {
2111 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2112 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2113 } else {
2114 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2115 TextOutW(dc, x, y, text + li + col, count);
2116 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2117 ret = size.cx;
2118 if (es->style & ES_PASSWORD)
2119 HeapFree(GetProcessHeap(), 0, text);
2120 }
2121 if (rev) {
2122 SetBkColor(dc, BkColor);
2123 SetTextColor(dc, TextColor);
2124 SetBkMode( dc, BkMode);
2125 }
2126 return ret;
2127 }
2128
2129
2130 /*********************************************************************
2131 *
2132 * EDIT_SetCaretPos
2133 *
2134 */
2135 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2136 BOOL after_wrap)
2137 {
2138 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2139 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2140 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2141 }
2142
2143
2144 /*********************************************************************
2145 *
2146 * EDIT_SetRectNP
2147 *
2148 * note: this is not (exactly) the handler called on EM_SETRECTNP
2149 * it is also used to set the rect of a single line control
2150 *
2151 */
2152 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2153 {
2154 CopyRect(&es->format_rect, rc);
2155 if (es->style & WS_BORDER) {
2156 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2157 es->format_rect.left += bw;
2158 es->format_rect.top += bw;
2159 es->format_rect.right -= bw;
2160 es->format_rect.bottom -= bw;
2161 }
2162 es->format_rect.left += es->left_margin;
2163 es->format_rect.right -= es->right_margin;
2164 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2165 if (es->style & ES_MULTILINE)
2166 {
2167 INT fw, vlc, max_x_offset, max_y_offset;
2168
2169 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2170 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2171
2172 /* correct es->x_offset */
2173 fw = es->format_rect.right - es->format_rect.left;
2174 max_x_offset = es->text_width - fw;
2175 if(max_x_offset < 0) max_x_offset = 0;
2176 if(es->x_offset > max_x_offset)
2177 es->x_offset = max_x_offset;
2178
2179 /* correct es->y_offset */
2180 max_y_offset = es->line_count - vlc;
2181 if(max_y_offset < 0) max_y_offset = 0;
2182 if(es->y_offset > max_y_offset)
2183 es->y_offset = max_y_offset;
2184
2185 /* force scroll info update */
2186 EDIT_UpdateScrollInfo(es);
2187 }
2188 else
2189 /* Windows doesn't care to fix text placement for SL controls */
2190 es->format_rect.bottom = es->format_rect.top + es->line_height;
2191
2192 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2193 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2194 }
2195
2196
2197 /*********************************************************************
2198 *
2199 * EDIT_UnlockBuffer
2200 *
2201 */
2202 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2203 {
2204 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2205
2206 /* Edit window might be already destroyed */
2207 if(!IsWindow(es->hwndSelf))
2208 {
2209 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2210 return;
2211 }
2212
2213 if (!es->lock_count) {
2214 ERR("lock_count == 0 ... please report\n");
2215 return;
2216 }
2217 if (!es->text) {
2218 ERR("es->text == 0 ... please report\n");
2219 return;
2220 }
2221
2222 if (force || (es->lock_count == 1)) {
2223 if (es->hloc32W) {
2224 CHAR *textA = NULL;
2225 BOOL _16bit = FALSE;
2226 UINT countA = 0;
2227 UINT countW = strlenW(es->text) + 1;
2228
2229 if(es->hloc32A)
2230 {
2231 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2232 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2233 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2234 countA = LocalSize(es->hloc32A);
2235 if(countA_new > countA)
2236 {
2237 HLOCAL hloc32A_new;
2238 UINT alloc_size = ROUND_TO_GROW(countA_new);
2239 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2240 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2241 if(hloc32A_new)
2242 {
2243 es->hloc32A = hloc32A_new;
2244 countA = LocalSize(hloc32A_new);
2245 TRACE("Real new size %d bytes\n", countA);
2246 }
2247 else
2248 WARN("FAILED! Will synchronize partially\n");
2249 }
2250 textA = LocalLock(es->hloc32A);
2251 }
2252 else if(es->hloc16)
2253 {
2254 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2255 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2256 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2257 countA = LOCAL_Size(hInstance, es->hloc16);
2258 if(countA_new > countA)
2259 {
2260 HLOCAL16 hloc16_new;
2261 UINT alloc_size = ROUND_TO_GROW(countA_new);
2262 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2263 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2264 if(hloc16_new)
2265 {
2266 es->hloc16 = hloc16_new;
2267 countA = LOCAL_Size(hInstance, hloc16_new);
2268 TRACE("Real new size %d bytes\n", countA);
2269 }
2270 else
2271 WARN("FAILED! Will synchronize partially\n");
2272 }
2273 textA = LOCAL_Lock(hInstance, es->hloc16);
2274 _16bit = TRUE;
2275 }
2276
2277 if(textA)
2278 {
2279 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2280 if(_16bit)
2281 LOCAL_Unlock(hInstance, es->hloc16);
2282 else
2283 LocalUnlock(es->hloc32A);
2284 }
2285
2286 LocalUnlock(es->hloc32W);
2287 es->text = NULL;
2288 }
2289 else {
2290 ERR("no buffer ... please report\n");
2291 return;
2292 }
2293 }
2294 es->lock_count--;
2295 }
2296
2297
2298 /*********************************************************************
2299 *
2300 * EDIT_UpdateScrollInfo
2301 *
2302 */
2303 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2304 {
2305 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2306 {
2307 SCROLLINFO si;
2308 si.cbSize = sizeof(SCROLLINFO);
2309 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2310 si.nMin = 0;
2311 si.nMax = es->line_count - 1;
2312 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2313 si.nPos = es->y_offset;
2314 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2315 si.nMin, si.nMax, si.nPage, si.nPos);
2316 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2317 }
2318
2319 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2320 {
2321 SCROLLINFO si;
2322 si.cbSize = sizeof(SCROLLINFO);
2323 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2324 si.nMin = 0;
2325 si.nMax = es->text_width - 1;
2326 si.nPage = es->format_rect.right - es->format_rect.left;
2327 si.nPos = es->x_offset;
2328 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2329 si.nMin, si.nMax, si.nPage, si.nPos);
2330 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2331 }
2332 }
2333
2334 /*********************************************************************
2335 *
2336 * EDIT_WordBreakProc
2337 *
2338 * Find the beginning of words.
2339 * Note: unlike the specs for a WordBreakProc, this function only
2340 * allows to be called without linebreaks between s[0] upto
2341 * s[count - 1]. Remember it is only called
2342 * internally, so we can decide this for ourselves.
2343 *
2344 */
2345 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2346 {
2347 INT ret = 0;
2348
2349 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2350
2351 if(!s) return 0;
2352
2353 switch (action) {
2354 case WB_LEFT:
2355 if (!count)
2356 break;
2357 if (index)
2358 index--;
2359 if (s[index] == ' ') {
2360 while (index && (s[index] == ' '))
2361 index--;
2362 if (index) {
2363 while (index && (s[index] != ' '))
2364 index--;
2365 if (s[index] == ' ')
2366 index++;
2367 }
2368 } else {
2369 while (index && (s[index] != ' '))
2370 index--;
2371 if (s[index] == ' ')
2372 index++;
2373 }
2374 ret = index;
2375 break;
2376 case WB_RIGHT:
2377 if (!count)
2378 break;
2379 if (index)
2380 index--;
2381 if (s[index] == ' ')
2382 while ((index < count) && (s[index] == ' ')) index++;
2383 else {
2384 while (s[index] && (s[index] != ' ') && (index < count))
2385 index++;
2386 while ((s[index] == ' ') && (index < count)) index++;
2387 }
2388 ret = index;
2389 break;
2390 case WB_ISDELIMITER:
2391 ret = (s[index] == ' ');
2392 break;
2393 default:
2394 ERR("unknown action code, please report !\n");
2395 break;
2396 }
2397 return ret;
2398 }
2399
2400
2401 /*********************************************************************
2402 *
2403 * EM_CHARFROMPOS
2404 *
2405 * returns line number (not index) in high-order word of result.
2406 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2407 * to Richedit, not to the edit control. Original documentation is valid.
2408 * FIXME: do the specs mean to return -1 if outside client area or
2409 * if outside formatting rectangle ???
2410 *
2411 */
2412 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2413 {
2414 POINT pt;
2415 RECT rc;
2416 INT index;
2417
2418 pt.x = x;
2419 pt.y = y;
2420 GetClientRect(es->hwndSelf, &rc);
2421 if (!PtInRect(&rc, pt))
2422 return -1;
2423
2424 index = EDIT_CharFromPos(es, x, y, NULL);
2425 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2426 }
2427
2428
2429 /*********************************************************************
2430 *
2431 * EM_FMTLINES
2432 *
2433 * Enable or disable soft breaks.
2434 *
2435 * This means: insert or remove the soft linebreak character (\r\r\n).
2436 * Take care to check if the text still fits the buffer after insertion.
2437 * If not, notify with EN_ERRSPACE.
2438 *
2439 */
2440 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2441 {
2442 es->flags &= ~EF_USE_SOFTBRK;
2443 if (add_eol) {
2444 es->flags |= EF_USE_SOFTBRK;
2445 FIXME("soft break enabled, not implemented\n");
2446 }
2447 return add_eol;
2448 }
2449
2450
2451 /*********************************************************************
2452 *
2453 * EM_GETHANDLE
2454 *
2455 * Hopefully this won't fire back at us.
2456 * We always start with a fixed buffer in the local heap.
2457 * Despite of the documentation says that the local heap is used
2458 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2459 * buffer on the local heap.
2460 *
2461 */
2462 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2463 {
2464 HLOCAL hLocal;
2465
2466 if (!(es->style & ES_MULTILINE))
2467 return 0;
2468
2469 if(es->is_unicode)
2470 hLocal = es->hloc32W;
2471 else
2472 {
2473 if(!es->hloc32A)
2474 {
2475 CHAR *textA;
2476 UINT countA, alloc_size;
2477 TRACE("Allocating 32-bit ANSI alias buffer\n");
2478 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2479 alloc_size = ROUND_TO_GROW(countA);
2480 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2481 {
2482 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2483 return 0;
2484 }
2485 textA = LocalLock(es->hloc32A);
2486 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2487 LocalUnlock(es->hloc32A);
2488 }
2489 hLocal = es->hloc32A;
2490 }
2491
2492 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2493 return hLocal;
2494 }
2495
2496
2497 /*********************************************************************
2498 *
2499 * EM_GETHANDLE16
2500 *
2501 * Hopefully this won't fire back at us.
2502 * We always start with a buffer in 32 bit linear memory.
2503 * However, with this message a 16 bit application requests
2504 * a handle of 16 bit local heap memory, where it expects to find
2505 * the text.
2506 * It's a pitty that from this moment on we have to use this
2507 * local heap, because applications may rely on the handle
2508 * in the future.
2509 *
2510 * In this function we'll try to switch to local heap.
2511 */
2512 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2513 {
2514 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
2515 CHAR *textA;
2516 UINT countA, alloc_size;
2517
2518 if (!(es->style & ES_MULTILINE))
2519 return 0;
2520
2521 if (es->hloc16)
2522 return es->hloc16;
2523
2524 if (!LOCAL_HeapSize(hInstance)) {
2525 if (!LocalInit16(hInstance, 0,
2526 GlobalSize16(hInstance))) {
2527 ERR("could not initialize local heap\n");
2528 return 0;
2529 }
2530 TRACE("local heap initialized\n");
2531 }
2532
2533 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2534 alloc_size = ROUND_TO_GROW(countA);
2535
2536 TRACE("Allocating 16-bit ANSI alias buffer\n");
2537 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2538 ERR("could not allocate new 16 bit buffer\n");
2539 return 0;
2540 }
2541
2542 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2543 ERR("could not lock new 16 bit buffer\n");
2544 LOCAL_Free(hInstance, es->hloc16);
2545 es->hloc16 = 0;
2546 return 0;
2547 }
2548
2549 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2550 LOCAL_Unlock(hInstance, es->hloc16);
2551
2552 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2553 return es->hloc16;
2554 }
2555
2556
2557 /*********************************************************************
2558 *
2559 * EM_GETLINE
2560 *
2561 */
2562 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2563 {
2564 LPWSTR src;
2565 INT line_len, dst_len;
2566 INT i;
2567
2568 if (es->style & ES_MULTILINE) {
2569 if (line >= es->line_count)
2570 return 0;
2571 } else
2572 line = 0;
2573 i = EDIT_EM_LineIndex(es, line);
2574 src = es->text + i;
2575 line_len = EDIT_EM_LineLength(es, i);
2576 dst_len = *(WORD *)lParam;
2577 if(unicode)
2578 {
2579 LPWSTR dst = (LPWSTR)lParam;
2580 if(dst_len <= line_len)
2581 {
2582 memcpy(dst, src, dst_len * sizeof(WCHAR));
2583 return dst_len;
2584 }
2585 else /* Append 0 if enough space */
2586 {
2587 memcpy(dst, src, line_len * sizeof(WCHAR));
2588 dst[line_len] = 0;
2589 return line_len;
2590 }
2591 }
2592 else
2593 {
2594 LPSTR dst = (LPSTR)lParam;
2595 INT ret;
2596 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2597 if(!ret) /* Insufficient buffer size */
2598 return dst_len;
2599 if(ret < dst_len) /* Append 0 if enough space */
2600 dst[ret] = 0;
2601 return ret;
2602 }
2603 }
2604
2605
2606 /*********************************************************************
2607 *
2608 * EM_GETSEL
2609 *
2610 */
2611 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2612 {
2613 UINT s = es->selection_start;
2614 UINT e = es->selection_end;
2615
2616 ORDER_UINT(s, e);
2617 if (start)
2618 *start = s;
2619 if (end)
2620 *end = e;
2621 return MAKELONG(s, e);
2622 }
2623
2624
2625 /*********************************************************************
2626 *
2627 * EM_GETTHUMB
2628 *
2629 * FIXME: is this right ? (or should it be only VSCROLL)
2630 * (and maybe only for edit controls that really have their
2631 * own scrollbars) (and maybe only for multiline controls ?)
2632 * All in all: very poorly documented
2633 *
2634 */
2635 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2636 {
2637 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2638 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2639 }
2640
2641
2642 /*********************************************************************
2643 *
2644 * EM_LINEFROMCHAR
2645 *
2646 */
2647 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2648 {
2649 INT line;
2650 LINEDEF *line_def;
2651
2652 if (!(es->style & ES_MULTILINE))
2653 return 0;
2654 if (index > (INT)strlenW(es->text))
2655 return es->line_count - 1;
2656 if (index == -1)
2657 index = min(es->selection_start, es->selection_end);
2658
2659 line = 0;
2660 line_def = es->first_line_def;
2661 index -= line_def->length;
2662 while ((index >= 0) && line_def->next) {
2663 line++;
2664 line_def = line_def->next;
2665 index -= line_def->length;
2666 }
2667 return line;
2668 }
2669
2670
2671 /*********************************************************************
2672 *
2673 * EM_LINEINDEX
2674 *
2675 */
2676 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2677 {
2678 INT line_index;
2679 LINEDEF *line_def;
2680
2681 if (!(es->style & ES_MULTILINE))
2682 return 0;
2683 if (line >= es->line_count)
2684 return -1;
2685
2686 line_index = 0;
2687 line_def = es->first_line_def;
2688 if (line == -1) {
2689 INT index = es->selection_end - line_def->length;
2690 while ((index >= 0) && line_def->next) {
2691 line_index += line_def->length;
2692 line_def = line_def->next;
2693 index -= line_def->length;
2694 }
2695 } else {
2696 while (line > 0) {
2697 line_index += line_def->length;
2698 line_def = line_def->next;
2699 line--;
2700 }
2701 }
2702 return line_index;
2703 }
2704
2705
2706 /*********************************************************************
2707 *
2708 * EM_LINELENGTH
2709 *
2710 */
2711 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2712 {
2713 LINEDEF *line_def;
2714
2715 if (!(es->style & ES_MULTILINE))
2716 return strlenW(es->text);
2717
2718 if (index == -1) {
2719 /* get the number of remaining non-selected chars of selected lines */
2720 INT32 l; /* line number */
2721 INT32 li; /* index of first char in line */
2722 INT32 count;
2723 l = EDIT_EM_LineFromChar(es, es->selection_start);
2724 /* # chars before start of selection area */
2725 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2726 l = EDIT_EM_LineFromChar(es, es->selection_end);
2727 /* # chars after end of selection */
2728 li = EDIT_EM_LineIndex(es, l);
2729 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2730 return count;
2731 }
2732 line_def = es->first_line_def;
2733 index -= line_def->length;
2734 while ((index >= 0) && line_def->next) {
2735 line_def = line_def->next;
2736 index -= line_def->length;
2737 }
2738 return line_def->net_length;
2739 }
2740
2741
2742 /*********************************************************************
2743 *
2744 * EM_LINESCROLL
2745 *
2746 * NOTE: dx is in average character widths, dy - in lines;
2747 *
2748 */
2749 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2750 {
2751 if (!(es->style & ES_MULTILINE))
2752 return FALSE;
2753
2754 dx *= es->char_width;
2755 return EDIT_EM_LineScroll_internal(es, dx, dy);
2756 }
2757
2758 /*********************************************************************
2759 *
2760 * EDIT_EM_LineScroll_internal
2761 *
2762 * Version of EDIT_EM_LineScroll for internal use.
2763 * It doesn't refuse if ES_MULTILINE is set and assumes that
2764 * dx is in pixels, dy - in lines.
2765 *
2766 */
2767 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2768 {
2769 INT nyoff;
2770 INT x_offset_in_pixels;
2771
2772 if (es->style & ES_MULTILINE)
2773 {
2774 x_offset_in_pixels = es->x_offset;
2775 }
2776 else
2777 {
2778 dy = 0;
2779 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2780 }
2781
2782 if (-dx > x_offset_in_pixels)
2783 dx = -x_offset_in_pixels;
2784 if (dx > es->text_width - x_offset_in_pixels)
2785 dx = es->text_width - x_offset_in_pixels;
2786 nyoff = max(0, es->y_offset + dy);
2787 if (nyoff >= es->line_count)
2788 nyoff = es->line_count - 1;
2789 dy = (es->y_offset - nyoff) * es->line_height;
2790 if (dx || dy) {
2791 RECT rc1;
2792 RECT rc;
2793
2794 es->y_offset = nyoff;
2795 if(es->style & ES_MULTILINE)
2796 es->x_offset += dx;
2797 else
2798 es->x_offset += dx / es->char_width;
2799
2800 GetClientRect(es->hwndSelf, &rc1);
2801 IntersectRect(&rc, &rc1, &es->format_rect);
2802 ScrollWindowEx(es->hwndSelf, -dx, dy,
2803 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2804 /* force scroll info update */
2805 EDIT_UpdateScrollInfo(es);
2806 }
2807 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2808 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2809 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2810 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2811 return TRUE;
2812 }
2813
2814
2815 /*********************************************************************
2816 *
2817 * EM_POSFROMCHAR
2818 *
2819 */
2820 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2821 {
2822 INT len = strlenW(es->text);
2823 INT l;
2824 INT li;
2825 INT x;
2826 INT y = 0;
2827 HDC dc;
2828 HFONT old_font = 0;
2829 SIZE size;
2830
2831 index = min(index, len);
2832 dc = GetDC(es->hwndSelf);
2833 if (es->font)
2834 old_font = SelectObject(dc, es->font);
2835 if (es->style & ES_MULTILINE) {
2836 l = EDIT_EM_LineFromChar(es, index);
2837 y = (l - es->y_offset) * es->line_height;
2838 li = EDIT_EM_LineIndex(es, l);
2839 if (after_wrap && (li == index) && l) {
2840 INT l2 = l - 1;
2841 LINEDEF *line_def = es->first_line_def;
2842 while (l2) {
2843 line_def = line_def->next;
2844 l2--;
2845 }
2846 if (line_def->ending == END_WRAP) {
2847 l--;
2848 y -= es->line_height;
2849 li = EDIT_EM_LineIndex(es, l);
2850 }
2851 }
2852 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2853 es->tabs_count, es->tabs)) - es->x_offset;
2854 } else {
2855 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2856 if (index < es->x_offset) {
2857 GetTextExtentPoint32W(dc, text + index,
2858 es->x_offset - index, &size);
2859 x = -size.cx;
2860 } else {
2861 GetTextExtentPoint32W(dc, text + es->x_offset,
2862 index - es->x_offset, &size);
2863 x = size.cx;
2864 }
2865 y = 0;
2866 if (es->style & ES_PASSWORD)
2867 HeapFree(GetProcessHeap(), 0, text);
2868 }
2869 x += es->format_rect.left;
2870 y += es->format_rect.top;
2871 if (es->font)
2872 SelectObject(dc, old_font);
2873 ReleaseDC(es->hwndSelf, dc);
2874 return MAKELONG((INT16)x, (INT16)y);
2875 }
2876
2877
2878 /*********************************************************************
2879 *
2880 * EM_REPLACESEL
2881 *
2882 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2883 *
2884 */
2885 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2886 {
2887 UINT strl = strlenW(lpsz_replace);
2888 UINT tl = strlenW(es->text);
2889 UINT utl;
2890 UINT s;
2891 UINT e;
2892 UINT i;
2893 UINT size;
2894 LPWSTR p;
2895 HRGN hrgn = 0;
2896
2897 TRACE("%s, can_undo %d, send_update %d\n",
2898 debugstr_w(lpsz_replace), can_undo, send_update);
2899
2900 s = es->selection_start;
2901 e = es->selection_end;
2902
2903 if ((s == e) && !strl)
2904 return;
2905
2906 ORDER_UINT(s, e);
2907
2908 /* Issue the EN_MAXTEXT notification and continue with replacing text
2909 * such that buffer limit is honored. */
2910 size = tl - (e - s) + strl;
2911 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
2912 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
2913 strl = es->buffer_limit - (tl - (e-s));
2914 }
2915
2916 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2917 return;
2918
2919 if (e != s) {
2920 /* there is something to be deleted */
2921 TRACE("deleting stuff.\n");
2922 if (can_undo) {
2923 utl = strlenW(es->undo_text);
2924 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2925 /* undo-buffer is extended to the right */
2926 EDIT_MakeUndoFit(es, utl + e - s);
2927 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
2928 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2929 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2930 /* undo-buffer is extended to the left */
2931 EDIT_MakeUndoFit(es, utl + e - s);
2932 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2933 p[e - s] = p[0];
2934 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2935 p[i] = (es->text + s)[i];
2936 es->undo_position = s;
2937 } else {
2938 /* new undo-buffer */
2939 EDIT_MakeUndoFit(es, e - s);
2940 strncpyW(es->undo_text, es->text + s, e - s + 1);
2941 es->undo_text[e - s] = 0; /* ensure 0 termination */
2942 es->undo_position = s;
2943 }
2944 /* any deletion makes the old insertion-undo invalid */
2945 es->undo_insert_count = 0;
2946 } else
2947 EDIT_EM_EmptyUndoBuffer(es);
2948
2949 /* now delete */
2950 strcpyW(es->text + s, es->text + e);
2951 }
2952 if (strl) {
2953 /* there is an insertion */
2954 if (can_undo) {
2955 if ((s == es->undo_position) ||
2956 ((es->undo_insert_count) &&
2957 (s == es->undo_position + es->undo_insert_count)))
2958 /*
2959 * insertion is new and at delete position or
2960 * an extension to either left or right
2961 */
2962 es->undo_insert_count += strl;
2963 else {
2964 /* new insertion undo */
2965 es->undo_position = s;
2966 es->undo_insert_count = strl;
2967 /* new insertion makes old delete-buffer invalid */
2968 *es->undo_text = '\0';
2969 }
2970 } else
2971 EDIT_EM_EmptyUndoBuffer(es);
2972
2973 /* now insert */
2974 tl = strlenW(es->text);
2975 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));
2976 for (p = es->text + tl ; p >= es->text + s ; p--)
2977 p[strl] = p[0];
2978 for (i = 0 , p = es->text + s ; i < strl ; i++)
2979 p[i] = lpsz_replace[i];
2980 if(es->style & ES_UPPERCASE)
2981 CharUpperBuffW(p, strl);
2982 else if(es->style & ES_LOWERCASE)
2983 CharLowerBuffW(p, strl);
2984 s += strl;
2985 }
2986 if (es->style & ES_MULTILINE)
2987 {
2988 INT s = min(es->selection_start, es->selection_end);
2989
2990 hrgn = CreateRectRgn(0, 0, 0, 0);
2991 EDIT_BuildLineDefs_ML(es, s, s + strl,
2992 strl - abs(es->selection_end - es->selection_start), hrgn);
2993 }
2994 else
2995 EDIT_CalcLineWidth_SL(es);
2996
2997 EDIT_EM_SetSel(es, s, s, FALSE);
2998 es->flags |= EF_MODIFIED;
2999 if (send_update) es->flags |= EF_UPDATE;
3000 if (hrgn)
3001 {
3002 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3003 DeleteObject(hrgn);
3004 }
3005 else
3006 EDIT_UpdateText(es, NULL, TRUE);
3007
3008 EDIT_EM_ScrollCaret(es);
3009
3010 /* force scroll info update */
3011 EDIT_UpdateScrollInfo(es);
3012
3013
3014 if(es->flags & EF_UPDATE)
3015 {
3016 es->flags &= ~EF_UPDATE;
3017 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3018 }
3019 }
3020
3021
3022 /*********************************************************************
3023 *
3024 * EM_SCROLL
3025 *
3026 */
3027 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3028 {
3029 INT dy;
3030
3031 if (!(es->style & ES_MULTILINE))
3032 return (LRESULT)FALSE;
3033
3034 dy = 0;
3035
3036 switch (action) {
3037 case SB_LINEUP:
3038 if (es->y_offset)
3039 dy = -1;
3040 break;
3041 case SB_LINEDOWN:
3042 if (es->y_offset < es->line_count - 1)
3043 dy = 1;
3044 break;
3045 case SB_PAGEUP:
3046 if (es->y_offset)
3047 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3048 break;
3049 case SB_PAGEDOWN:
3050 if (es->y_offset < es->line_count - 1)
3051 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3052 break;
3053 default:
3054 return (LRESULT)FALSE;
3055 }
3056 if (dy) {
3057 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3058 /* check if we are going to move too far */
3059 if(es->y_offset + dy > es->line_count - vlc)
3060 dy = es->line_count - vlc - es->y_offset;
3061
3062 /* Notification is done in EDIT_EM_LineScroll */
3063 if(dy)
3064 EDIT_EM_LineScroll(es, 0, dy);
3065 }
3066 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3067 }
3068
3069
3070 /*********************************************************************
3071 *
3072 * EM_SCROLLCARET
3073 *
3074 */
3075 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3076 {
3077 if (es->style & ES_MULTILINE) {
3078 INT l;
3079 INT li;
3080 INT vlc;
3081 INT ww;
3082 INT cw = es->char_width;
3083 INT x;
3084 INT dy = 0;
3085 INT dx = 0;
3086
3087 l = EDIT_EM_LineFromChar(es, es->selection_end);
3088 li = EDIT_EM_LineIndex(es, l);
3089 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3090 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3091 if (l >= es->y_offset + vlc)
3092 dy = l - vlc + 1 - es->y_offset;
3093 if (l < es->y_offset)
3094 dy = l - es->y_offset;
3095 ww = es->format_rect.right - es->format_rect.left;
3096 if (x < es->format_rect.left)
3097 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3098 if (x > es->format_rect.right)
3099 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3100 if (dy || dx)
3101 {
3102 /* check if we are going to move too far */
3103 if(es->x_offset + dx + ww > es->text_width)
3104 dx = es->text_width - ww - es->x_offset;
3105 if(dx || dy)
3106 EDIT_EM_LineScroll_internal(es, dx, dy);
3107 }
3108 } else {
3109 INT x;
3110 INT goal;
3111 INT format_width;
3112
3113 if (!(es->style & ES_AUTOHSCROLL))
3114 return;
3115
3116 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3117 format_width = es->format_rect.right - es->format_rect.left;
3118 if (x < es->format_rect.left) {
3119 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3120 do {
3121 es->x_offset--;
3122 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3123 } while ((x < goal) && es->x_offset);
3124 /* FIXME: use ScrollWindow() somehow to improve performance */
3125 EDIT_UpdateText(es, NULL, TRUE);
3126 } else if (x > es->format_rect.right) {
3127 INT x_last;
3128 INT len = strlenW(es->text);
3129 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3130 do {
3131 es->x_offset++;
3132 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3133 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3134 } while ((x > goal) && (x_last > es->format_rect.right));
3135 /* FIXME: use ScrollWindow() somehow to improve performance */
3136 EDIT_UpdateText(es, NULL, TRUE);
3137 }
3138 }
3139
3140 if(es->flags & EF_FOCUSED)
3141 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3142 }
3143
3144
3145 /*********************************************************************
3146 *
3147 * EM_SETHANDLE
3148 *
3149 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3150 *
3151 */
3152 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3153 {
3154 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3155
3156 if (!(es->style & ES_MULTILINE))
3157 return;
3158
3159 if (!hloc) {
3160 WARN("called with NULL handle\n");
3161 return;
3162 }
3163
3164 EDIT_UnlockBuffer(es, TRUE);
3165
3166 if(es->hloc16)
3167 {
3168 LOCAL_Free(hInstance, es->hloc16);
3169 es->hloc16 = (HLOCAL16)NULL;
3170 }
3171
3172 if(es->is_unicode)
3173 {
3174 if(es->hloc32A)
3175 {
3176 LocalFree(es->hloc32A);
3177 es->hloc32A = NULL;
3178 }
3179 es->hloc32W = hloc;
3180 }
3181 else
3182 {
3183 INT countW, countA;
3184 HLOCAL hloc32W_new;
3185 WCHAR *textW;
3186 CHAR *textA;
3187
3188 countA = LocalSize(hloc);
3189 textA = LocalLock(hloc);
3190 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3191 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3192 {
3193 ERR("Could not allocate new unicode buffer\n");
3194 return;
3195 }
3196 textW = LocalLock(hloc32W_new);
3197 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3198 LocalUnlock(hloc32W_new);
3199 LocalUnlock(hloc);
3200
3201 if(es->hloc32W)
3202 LocalFree(es->hloc32W);
3203
3204 es->hloc32W = hloc32W_new;
3205 es->hloc32A = hloc;
3206 }
3207
3208 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3209
3210 EDIT_LockBuffer(es);
3211
3212 es->x_offset = es->y_offset = 0;
3213 es->selection_start = es->selection_end = 0;
3214 EDIT_EM_EmptyUndoBuffer(es);
3215 es->flags &= ~EF_MODIFIED;
3216 es->flags &= ~EF_UPDATE;
3217 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3218 EDIT_UpdateText(es, NULL, TRUE);
3219 EDIT_EM_ScrollCaret(es);
3220 /* force scroll info update */
3221 EDIT_UpdateScrollInfo(es);
3222 }
3223
3224
3225 /*********************************************************************
3226 *
3227 * EM_SETHANDLE16
3228 *
3229 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3230 *
3231 */
3232 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3233 {
3234 HINSTANCE16 hInstance = GetWindowLongW( es->hwndSelf, GWL_HINSTANCE );
3235 INT countW, countA;
3236 HLOCAL hloc32W_new;
3237 WCHAR *textW;
3238 CHAR *textA;
3239
3240 if (!(es->style & ES_MULTILINE))
3241 return;
3242
3243 if (!hloc) {
3244 WARN("called with NULL handle\n");
3245 return;
3246 }
3247
3248 EDIT_UnlockBuffer(es, TRUE);
3249
3250 if(es->hloc32A)
3251 {
3252 LocalFree(es->hloc32A);
3253 es->hloc32A = NULL;
3254 }
3255
3256 countA = LOCAL_Size(hInstance, hloc);
3257 textA = LOCAL_Lock(hInstance, hloc);
3258 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3259 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3260 {
3261 ERR("Could not allocate new unicode buffer\n");
3262 return;
3263 }
3264 textW = LocalLock(hloc32W_new);
3265 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3266 LocalUnlock(hloc32W_new);
3267 LOCAL_Unlock(hInstance, hloc);
3268
3269 if(es->hloc32W)
3270 LocalFree(es->hloc32W);
3271
3272 es->hloc32W = hloc32W_new;
3273 es->hloc16 = hloc;
3274
3275 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3276
3277 EDIT_LockBuffer(es);
3278
3279 es->x_offset = es->y_offset = 0;
3280 es->selection_start = es->selection_end = 0;
3281 EDIT_EM_EmptyUndoBuffer(es);
3282 es->flags &= ~EF_MODIFIED;
3283 es->flags &= ~EF_UPDATE;
3284 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3285 EDIT_UpdateText(es, NULL, TRUE);
3286 EDIT_EM_ScrollCaret(es);
3287 /* force scroll info update */
3288 EDIT_UpdateScrollInfo(es);
3289 }
3290
3291
3292 /*********************************************************************
3293 *
3294 * EM_SETLIMITTEXT
3295 *
3296 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3297 * However, the windows version is not complied to yet in all of edit.c
3298 *
3299 * Additionally as the wrapper for RichEdit controls we need larger buffers
3300 * at present -1 will represent nolimit
3301 */
3302 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3303 {
3304 if (limit == 0xFFFFFFFF)
3305 es->buffer_limit = -1;
3306 else if (es->style & ES_MULTILINE) {
3307 if (limit)
3308 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3309 else
3310 es->buffer_limit = BUFLIMIT_MULTI;
3311 } else {
3312 if (limit)
3313 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3314 else
3315 es->buffer_limit = BUFLIMIT_SINGLE;
3316 }
3317 }
3318
3319
3320 /*********************************************************************
3321 *
3322 * EM_SETMARGINS
3323 *
3324 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3325 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3326 * margin according to the textmetrics of the current font.
3327 *
3328 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3329 * of the char's width as the margin, but this is not how Windows handles this.
3330 * For all other fonts Windows sets the margins to zero.
3331 *
3332 */
3333 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3334 INT left, INT right)
3335 {
3336 TEXTMETRICW tm;
3337 INT default_left_margin = 0; /* in pixels */
3338 INT default_right_margin = 0; /* in pixels */
3339
3340 /* Set the default margins depending on the font */
3341 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3342 HDC dc = GetDC(es->hwndSelf);
3343 HFONT old_font = SelectObject(dc, es->font);
3344 GetTextMetricsW(dc, &tm);
3345 /* The default margins are only non zero for TrueType or Vector fonts */
3346 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3347 /* This must be calculated more exactly! But how? */
3348 default_left_margin = tm.tmAveCharWidth / 3;
3349 default_right_margin = tm.tmAveCharWidth / 3;
3350 }
3351 SelectObject(dc, old_font);
3352 ReleaseDC(es->hwndSelf, dc);
3353 }
3354
3355 if (action & EC_LEFTMARGIN) {
3356 if (left != EC_USEFONTINFO)
3357 es->left_margin = left;
3358 else
3359 es->left_margin = default_left_margin;
3360 }
3361
3362 if (action & EC_RIGHTMARGIN) {
3363 if (right != EC_USEFONTINFO)
3364 es->right_margin = right;
3365 else
3366 es->right_margin = default_right_margin;
3367 }
3368 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3369 }
3370
3371
3372 /*********************************************************************
3373 *
3374 * EM_SETPASSWORDCHAR
3375 *
3376 */
3377 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3378 {
3379 LONG style;
3380
3381 if (es->style & ES_MULTILINE)
3382 return;
3383
3384 if (es->password_char == c)
3385 return;
3386
3387 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3388 es->password_char = c;
3389 if (c) {
3390 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3391 es->style |= ES_PASSWORD;
3392 } else {
3393 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3394 es->style &= ~ES_PASSWORD;
3395 }
3396 EDIT_UpdateText(es, NULL, TRUE);
3397 }
3398
3399
3400 /*********************************************************************
3401 *
3402 * EDIT_EM_SetSel
3403 *
3404 * note: unlike the specs say: the order of start and end
3405 * _is_ preserved in Windows. (i.e. start can be > end)
3406 * In other words: this handler is OK
3407 *
3408 */
3409 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3410 {
3411 UINT old_start = es->selection_start;
3412 UINT old_end = es->selection_end;
3413 UINT len = strlenW(es->text);
3414
3415 if (start == (UINT)-1) {
3416 start = es->selection_end;
3417 end = es->selection_end;
3418 } else {
3419 start = min(start, len);
3420 end = min(end, len);
3421 }
3422 es->selection_start = start;
3423 es->selection_end = end;
3424 if (after_wrap)
3425 es->flags |= EF_AFTER_WRAP;
3426 else
3427 es->flags &= ~EF_AFTER_WRAP;
3428 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3429 ORDER_UINT(start, end);
3430 ORDER_UINT(end, old_end);
3431 ORDER_UINT(start, old_start);
3432 ORDER_UINT(old_start, old_end);
3433 if (end != old_start)
3434 {
3435 /*
3436 * One can also do
3437 * ORDER_UINT32(end, old_start);
3438 * EDIT_InvalidateText(es, start, end);
3439 * EDIT_InvalidateText(es, old_start, old_end);
3440 * in place of the following if statement.
3441 */
3442 if (old_start > end )
3443 {
3444 EDIT_InvalidateText(es, start, end);
3445 EDIT_InvalidateText(es, old_start, old_end);
3446 }
3447 else
3448 {
3449 EDIT_InvalidateText(es, start, old_start);
3450 EDIT_InvalidateText(es, end, old_end);
3451 }
3452 }
3453 else EDIT_InvalidateText(es, start, old_end);
3454 }
3455
3456
3457 /*********************************************************************
3458 *
3459 * EM_SETTABSTOPS
3460 *
3461 */
3462 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3463 {
3464 if (!(es->style & ES_MULTILINE))
3465 return FALSE;
3466 if (es->tabs)
3467 HeapFree(GetProcessHeap(), 0, es->tabs);
3468 es->tabs_count = count;
3469 if (!count)
3470 es->tabs = NULL;
3471 else {
3472 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3473 memcpy(es->tabs, tabs, count * sizeof(INT));
3474 }
3475 return TRUE;
3476 }
3477
3478
3479 /*********************************************************************
3480 *
3481 * EM_SETTABSTOPS16
3482 *
3483 */
3484 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3485 {
3486 if (!(es->style & ES_MULTILINE))
3487 return FALSE;
3488 if (es->tabs)
3489 HeapFree(GetProcessHeap(), 0, es->tabs);
3490 es->tabs_count = count;
3491 if (!count)
3492 es->tabs = NULL;
3493 else {
3494 INT i;
3495 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3496 for (i = 0 ; i < count ; i++)
3497 es->tabs[i] = *tabs++;
3498 }
3499 return TRUE;
3500 }
3501
3502
3503 /*********************************************************************
3504 *
3505 * EM_SETWORDBREAKPROC
3506 *
3507 */
3508 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam)
3509 {
3510 if (es->word_break_proc == (void *)lParam)
3511 return;
3512
3513 es->word_break_proc = (void *)lParam;
3514 es->word_break_proc16 = NULL;
3515
3516 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3517 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3518 EDIT_UpdateText(es, NULL, TRUE);
3519 }
3520 }
3521
3522
3523 /*********************************************************************
3524 *
3525 * EM_SETWORDBREAKPROC16
3526 *
3527 */
3528 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3529 {
3530 if (es->word_break_proc16 == wbp)
3531 return;
3532
3533 es->word_break_proc = NULL;
3534 es->word_break_proc16 = wbp;
3535 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3536 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3537 EDIT_UpdateText(es, NULL, TRUE);
3538 }
3539 }
3540
3541
3542 /*********************************************************************
3543 *
3544 * EM_UNDO / WM_UNDO
3545 *
3546 */
3547 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3548 {
3549 INT ulength;
3550 LPWSTR utext;
3551
3552 /* As per MSDN spec, for a single-line edit control,
3553 the return value is always TRUE */
3554 if( es->style & ES_READONLY )
3555 return !(es->style & ES_MULTILINE);
3556
3557 ulength = strlenW(es->undo_text);
3558 if( ulength == 0 )
3559 return !(es->style & ES_MULTILINE);
3560
3561 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3562
3563 strcpyW(utext, es->undo_text);
3564
3565 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3566 es->undo_insert_count, debugstr_w(utext));
3567
3568 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3569 EDIT_EM_EmptyUndoBuffer(es);
3570 EDIT_EM_ReplaceSel(es, TRUE, utext, FALSE, TRUE);
3571 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3572 /* send the notification after the selection start and end are set */
3573 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3574 EDIT_EM_ScrollCaret(es);
3575 HeapFree(GetProcessHeap(), 0, utext);
3576
3577 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3578 es->undo_insert_count, debugstr_w(es->undo_text));
3579 return TRUE;
3580 }
3581
3582
3583 /*********************************************************************
3584 *
3585 * WM_CHAR
3586 *
3587 */
3588 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3589 {
3590 BOOL control;
3591
3592 /* Protect read-only edit control from modification */
3593 if(es->style & ES_READONLY)
3594 return;
3595
3596 control = GetKeyState(VK_CONTROL) & 0x8000;
3597
3598 switch (c) {
3599 case '\r':
3600 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3601 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3602 break;
3603 case '\n':
3604 if (es->style & ES_MULTILINE) {
3605 if (es->style & ES_READONLY) {
3606 EDIT_MoveHome(es, FALSE);
3607 EDIT_MoveDown_ML(es, FALSE);
3608 } else {
3609 static const WCHAR cr_lfW[] = {'\r','\n',0};
3610 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3611 }
3612 }
3613 break;
3614 case '\t':
3615 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3616 {
3617 static const WCHAR tabW[] = {'\t',0};
3618 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3619 }
3620 break;
3621 case VK_BACK:
3622 if (!(es->style & ES_READONLY) && !control) {
3623 if (es->selection_start != es->selection_end)
3624 EDIT_WM_Clear(es);
3625 else {
3626 /* delete character left of caret */
3627 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3628 EDIT_MoveBackward(es, TRUE);
3629 EDIT_WM_Clear(es);
3630 }
3631 }
3632 break;
3633 case 0x03: /* ^C */
3634 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3635 break;
3636 case 0x16: /* ^V */
3637 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3638 break;
3639 case 0x18: /* ^X */
3640 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3641 break;
3642
3643 default:
3644 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3645 WCHAR str[2];
3646 str[0] = c;
3647 str[1] = '\0';
3648 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3649 }
3650 break;
3651 }
3652 }
3653
3654
3655 /*********************************************************************
3656 *
3657 * WM_COMMAND
3658 *
3659 */
3660 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3661 {
3662 if (code || control)
3663 return;
3664
3665 switch (id) {
3666 case EM_UNDO:
3667 EDIT_EM_Undo(es);
3668 break;
3669 case WM_CUT:
3670 EDIT_WM_Cut(es);
3671 break;
3672 case WM_COPY:
3673 EDIT_WM_Copy(es);
3674 break;
3675 case WM_PASTE:
3676 EDIT_WM_Paste(es);
3677 break;
3678 case WM_CLEAR:
3679 EDIT_WM_Clear(es);
3680 break;
3681 case EM_SETSEL:
3682 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3683 EDIT_EM_ScrollCaret(es);
3684 break;
3685 default:
3686 ERR("unknown menu item, please report\n");
3687 break;
3688 }
3689 }
3690
3691
3692 /*********************************************************************
3693 *
3694 * WM_CONTEXTMENU
3695 *
3696 * Note: the resource files resource/sysres_??.rc cannot define a
3697 * single popup menu. Hence we use a (dummy) menubar
3698 * containing the single popup menu as its first item.
3699 *
3700 * FIXME: the message identifiers have been chosen arbitrarily,
3701 * hence we use MF_BYPOSITION.
3702 * We might as well use the "real" values (anybody knows ?)
3703 * The menu definition is in resources/sysres_??.rc.
3704 * Once these are OK, we better use MF_BYCOMMAND here
3705 * (as we do in EDIT_WM_Command()).
3706 *
3707 */
3708 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3709 {
3710 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3711 HMENU popup = GetSubMenu(menu, 0);
3712 UINT start = es->selection_start;
3713 UINT end = es->selection_end;
3714
3715 ORDER_UINT(start, end);
3716
3717 /* undo */
3718 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3719 /* cut */
3720 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3721 /* copy */
3722 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3723 /* paste */
3724 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3725 /* delete */
3726 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3727 /* select all */
3728 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3729
3730 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3731 DestroyMenu(menu);
3732 }
3733
3734
3735 /*********************************************************************
3736 *
3737 * WM_COPY
3738 *
3739 */
3740 static void EDIT_WM_Copy(EDITSTATE *es)
3741 {
3742 INT s = min(es->selection_start, es->selection_end);
3743 INT e = max(es->selection_start, es->selection_end);
3744 HGLOBAL hdst;
3745 LPWSTR dst;
3746
3747 if (e == s) return;
3748
3749 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3750 dst = GlobalLock(hdst);
3751 strncpyW(dst, es->text + s, e - s);
3752 dst[e - s] = 0; /* ensure 0 termination */
3753 TRACE("%s\n", debugstr_w(dst));
3754 GlobalUnlock(hdst);
3755 OpenClipboard(es->hwndSelf);
3756 EmptyClipboard();
3757 SetClipboardData(CF_UNICODETEXT, hdst);
3758 CloseClipboard();
3759 }
3760
3761
3762 /*********************************************************************
3763 *
3764 * WM_CREATE
3765 *
3766 */
3767 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3768 {
3769 TRACE("%s\n", debugstr_w(name));
3770 /*
3771 * To initialize some final structure members, we call some helper
3772 * functions. However, since the EDITSTATE is not consistent (i.e.
3773 * not fully initialized), we should be very careful which
3774 * functions can be called, and in what order.
3775 */
3776 EDIT_WM_SetFont(es, 0, FALSE);
3777 EDIT_EM_EmptyUndoBuffer(es);
3778
3779 if (name && *name) {
3780 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
3781 /* if we insert text to the editline, the text scrolls out
3782 * of the window, as the caret is placed after the insert
3783 * pos normally; thus we reset es->selection... to 0 and
3784 * update caret
3785 */
3786 es->selection_start = es->selection_end = 0;
3787 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
3788 * Messages are only to be sent when the USER does something to
3789 * change the contents. So I am removing this EN_CHANGE
3790 *
3791 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3792 */
3793 EDIT_EM_ScrollCaret(es);
3794 }
3795 /* force scroll info update */
3796 EDIT_UpdateScrollInfo(es);
3797 /* The rule seems to return 1 here for success */
3798 /* Power Builder masked edit controls will crash */
3799 /* if not. */
3800 /* FIXME: is that in all cases so ? */
3801 return 1;
3802 }
3803
3804
3805 /*********************************************************************
3806 *
3807 * WM_DESTROY
3808 *
3809 */
3810 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
3811 {
3812 LINEDEF *pc, *pp;
3813
3814 if (es->hloc32W) {
3815 while (LocalUnlock(es->hloc32W)) ;
3816 LocalFree(es->hloc32W);
3817 }
3818 if (es->hloc32A) {
3819 while (LocalUnlock(es->hloc32A)) ;
3820 LocalFree(es->hloc32A);
3821 }
3822 if (es->hloc16) {
3823 HINSTANCE16 hInstance = GetWindowWord( es->hwndSelf, GWL_HINSTANCE );
3824 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3825 LOCAL_Free(hInstance, es->hloc16);
3826 }
3827
3828 pc = es->first_line_def;
3829 while (pc)
3830 {
3831 pp = pc->next;
3832 HeapFree(GetProcessHeap(), 0, pc);
3833 pc = pp;
3834 }
3835
3836 SetWindowLongW( es->hwndSelf, 0, 0 );
3837 HeapFree(GetProcessHeap(), 0, es);
3838
3839 return 0;
3840 }
3841
3842
3843 /*********************************************************************
3844 *
3845 * WM_ERASEBKGND
3846 *
3847 */
3848 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
3849 {
3850 HBRUSH brush;
3851 RECT rc;
3852
3853 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
3854 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
3855
3856 GetClientRect(es->hwndSelf, &rc);
3857 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3858 GetClipBox(dc, &rc);
3859 /*
3860 * FIXME: specs say that we should UnrealizeObject() the brush,
3861 * but the specs of UnrealizeObject() say that we shouldn't
3862 * unrealize a stock object. The default brush that
3863 * DefWndProc() returns is ... a stock object.
3864 */
3865 FillRect(dc, &rc, brush);
3866 return -1;
3867 }
3868
3869
3870 /*********************************************************************
3871 *
3872 * WM_GETTEXT
3873 *
3874 */
3875 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3876 {
3877 if(!count) return 0;
3878
3879 if(unicode)
3880 {
3881 LPWSTR textW = (LPWSTR)lParam;
3882 lstrcpynW(textW, es->text, count);
3883 return strlenW(textW);
3884 }
3885 else
3886 {
3887 LPSTR textA = (LPSTR)lParam;
3888 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3889 textA[count - 1] = 0; /* ensure 0 termination */
3890 return strlen(textA);
3891 }
3892 }
3893
3894 /*********************************************************************
3895 *
3896 * WM_HSCROLL
3897 *
3898 */
3899 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3900 {
3901 INT dx;
3902 INT fw;
3903
3904 if (!(es->style & ES_MULTILINE))
3905 return 0;
3906
3907 if (!(es->style & ES_AUTOHSCROLL))
3908 return 0;
3909
3910 dx = 0;
3911 fw = es->format_rect.right - es->format_rect.left;
3912 switch (action) {
3913 case SB_LINELEFT:
3914 TRACE("SB_LINELEFT\n");
3915 if (es->x_offset)
3916 dx = -es->char_width;
3917 break;
3918 case SB_LINERIGHT:
3919 TRACE("SB_LINERIGHT\n");
3920 if (es->x_offset < es->text_width)
3921 dx = es->char_width;
3922 break;
3923 case SB_PAGELEFT:
3924 TRACE("SB_PAGELEFT\n");
3925 if (es->x_offset)
3926 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3927 break;
3928 case SB_PAGERIGHT:
3929 TRACE("SB_PAGERIGHT\n");
3930 if (es->x_offset < es->text_width)
3931 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3932 break;
3933 case SB_LEFT:
3934 TRACE("SB_LEFT\n");
3935 if (es->x_offset)
3936 dx = -es->x_offset;
3937 break;
3938 case SB_RIGHT:
3939 TRACE("SB_RIGHT\n");
3940 if (es->x_offset < es->text_width)
3941 dx = es->text_width - es->x_offset;
3942 break;
3943 case SB_THUMBTRACK:
3944 TRACE("SB_THUMBTRACK %d\n", pos);
3945 es->flags |= EF_HSCROLL_TRACK;
3946 if(es->style & WS_HSCROLL)
3947 dx = pos - es->x_offset;
3948 else
3949 {
3950 INT fw, new_x;
3951 /* Sanity check */
3952 if(pos < 0 || pos > 100) return 0;
3953 /* Assume default scroll range 0-100 */
3954 fw = es->format_rect.right - es->format_rect.left;
3955 new_x = pos * (es->text_width - fw) / 100;
3956 dx = es->text_width ? (new_x - es->x_offset) : 0;
3957 }
3958 break;
3959 case SB_THUMBPOSITION:
3960 TRACE("SB_THUMBPOSITION %d\n", pos);
3961 es->flags &= ~EF_HSCROLL_TRACK;
3962 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3963 dx = pos - es->x_offset;
3964 else
3965 {
3966 INT fw, new_x;
3967 /* Sanity check */
3968 if(pos < 0 || pos > 100) return 0;
3969 /* Assume default scroll range 0-100 */
3970 fw = es->format_rect.right - es->format_rect.left;
3971 new_x = pos * (es->text_width - fw) / 100;
3972 dx = es->text_width ? (new_x - es->x_offset) : 0;
3973 }
3974 if (!dx) {
3975 /* force scroll info update */
3976 EDIT_UpdateScrollInfo(es);
3977 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
3978 }
3979 break;
3980 case SB_ENDSCROLL:
3981 TRACE("SB_ENDSCROLL\n");
3982 break;
3983 /*
3984 * FIXME : the next two are undocumented !
3985 * Are we doing the right thing ?
3986 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3987 * although it's also a regular control message.
3988 */
3989 case EM_GETTHUMB: /* this one is used by NT notepad */
3990 case EM_GETTHUMB16:
3991 {
3992 LRESULT ret;
3993 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3994 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3995 else
3996 {
3997 /* Assume default scroll range 0-100 */
3998 INT fw = es->format_rect.right - es->format_rect.left;
3999 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4000 }
4001 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4002 return ret;
4003 }
4004 case EM_LINESCROLL16:
4005 TRACE("EM_LINESCROLL16\n");
4006 dx = pos;
4007 break;
4008
4009 default:
4010 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4011 action, action);
4012 return 0;
4013 }
4014 if (dx)
4015 {
4016 INT fw = es->format_rect.right - es->format_rect.left;
4017 /* check if we are going to move too far */
4018 if(es->x_offset + dx + fw > es->text_width)
4019 dx = es->text_width - fw - es->x_offset;
4020 if(dx)
4021 EDIT_EM_LineScroll_internal(es, dx, 0);
4022 }
4023 return 0;
4024 }
4025
4026
4027 /*********************************************************************
4028 *
4029 * EDIT_CheckCombo
4030 *
4031 */
4032 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4033 {
4034 HWND hLBox = es->hwndListBox;
4035 HWND hCombo;
4036 BOOL bDropped;
4037 int nEUI;
4038
4039 if (!hLBox)
4040 return FALSE;
4041
4042 hCombo = GetParent(es->hwndSelf);
4043 bDropped = TRUE;
4044 nEUI = 0;
4045
4046 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4047
4048 if (key == VK_UP || key == VK_DOWN)
4049 {
4050 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4051 nEUI = 1;
4052
4053 if (msg == WM_KEYDOWN || nEUI)
4054 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4055 }
4056
4057 switch (msg)
4058 {
4059 case WM_KEYDOWN:
4060 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4061 {
4062 /* make sure ComboLBox pops up */
4063 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4064 key = VK_F4;
4065 nEUI = 2;
4066 }
4067
4068 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4069 break;
4070
4071 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4072 if (nEUI)
4073 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4074 else
4075 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4076 break;
4077 }
4078
4079 if(nEUI == 2)
4080 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4081
4082 return TRUE;
4083 }
4084
4085
4086 /*********************************************************************
4087 *
4088 * WM_KEYDOWN
4089 *
4090 * Handling of special keys that don't produce a WM_CHAR
4091 * (i.e. non-printable keys) & Backspace & Delete
4092 *
4093 */
4094 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4095 {
4096 BOOL shift;
4097 BOOL control;
4098
4099 if (GetKeyState(VK_MENU) & 0x8000)
4100 return 0;
4101
4102 shift = GetKeyState(VK_SHIFT) & 0x8000;
4103 control = GetKeyState(VK_CONTROL) & 0x8000;
4104
4105 switch (key) {
4106 case VK_F4:
4107 case VK_UP:
4108 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4109 break;
4110
4111 /* fall through */
4112 case VK_LEFT:
4113 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4114 EDIT_MoveUp_ML(es, shift);
4115 else
4116 if (control)
4117 EDIT_MoveWordBackward(es, shift);
4118 else
4119 EDIT_MoveBackward(es, shift);
4120 break;
4121 case VK_DOWN:
4122 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4123 break;
4124 /* fall through */
4125 case VK_RIGHT:
4126 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4127 EDIT_MoveDown_ML(es, shift);
4128 else if (control)
4129 EDIT_MoveWordForward(es, shift);
4130 else
4131 EDIT_MoveForward(es, shift);
4132 break;
4133 case VK_HOME:
4134 EDIT_MoveHome(es, shift);
4135 break;
4136 case VK_END:
4137 EDIT_MoveEnd(es, shift);
4138 break;
4139 case VK_PRIOR:
4140 if (es->style & ES_MULTILINE)
4141 EDIT_MovePageUp_ML(es, shift);
4142 else
4143 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4144 break;
4145 case VK_NEXT:
4146 if (es->style & ES_MULTILINE)
4147 EDIT_MovePageDown_ML(es, shift);
4148 else
4149 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4150 break;
4151 case VK_DELETE:
4152 if (!(es->style & ES_READONLY) && !(shift && control)) {
4153 if (es->selection_start != es->selection_end) {
4154 if (shift)
4155 EDIT_WM_Cut(es);
4156 else
4157 EDIT_WM_Clear(es);
4158 } else {
4159 if (shift) {
4160 /* delete character left of caret */
4161 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4162 EDIT_MoveBackward(es, TRUE);
4163 EDIT_WM_Clear(es);
4164 } else if (control) {
4165 /* delete to end of line */
4166 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4167 EDIT_MoveEnd(es, TRUE);
4168 EDIT_WM_Clear(es);
4169 } else {
4170 /* delete character right of caret */
4171 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4172 EDIT_MoveForward(es, TRUE);
4173 EDIT_WM_Clear(es);
4174 }
4175 }
4176 }
4177 break;
4178 case VK_INSERT:
4179 if (shift) {
4180 if (!(es->style & ES_READONLY))
4181 EDIT_WM_Paste(es);
4182 } else if (control)
4183 EDIT_WM_Copy(es);
4184 break;
4185 case VK_RETURN:
4186 /* If the edit doesn't want the return send a message to the default object */
4187 if(!(es->style & ES_WANTRETURN))
4188 {
4189 HWND hwndParent = GetParent(es->hwndSelf);
4190 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4191 if (HIWORD(dw) == DC_HASDEFID)
4192 {
4193 SendMessageW( hwndParent, WM_COMMAND,
4194 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4195 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4196 }
4197 }
4198 break;
4199 }
4200 return 0;
4201 }
4202
4203
4204 /*********************************************************************
4205 *
4206 * WM_KILLFOCUS
4207 *
4208 */
4209 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4210 {
4211 es->flags &= ~EF_FOCUSED;
4212 DestroyCaret();
4213 if(!(es->style & ES_NOHIDESEL))
4214 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4215 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4216 return 0;
4217 }
4218
4219
4220 /*********************************************************************
4221 *
4222 * WM_LBUTTONDBLCLK
4223 *
4224 * The caret position has been set on the WM_LBUTTONDOWN message
4225 *
4226 */
4227 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4228 {
4229 INT s;
4230 INT e = es->selection_end;
4231 INT l;
4232 INT li;
4233 INT ll;
4234
4235 if (!(es->flags & EF_FOCUSED))
4236 return 0;
4237
4238 l = EDIT_EM_LineFromChar(es, e);
4239 li = EDIT_EM_LineIndex(es, l);
4240 ll = EDIT_EM_LineLength(es, e);
4241 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4242 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4243 EDIT_EM_SetSel(es, s, e, FALSE);
4244 EDIT_EM_ScrollCaret(es);
4245 return 0;
4246 }
4247
4248
4249 /*********************************************************************
4250 *
4251 * WM_LBUTTONDOWN
4252 *
4253 */
4254 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4255 {
4256 INT e;
4257 BOOL after_wrap;
4258
4259 SetFocus(es->hwndSelf);
4260 if (!(es->flags & EF_FOCUSED))
4261 return 0;
4262
4263 es->bCaptureState = TRUE;
4264 SetCapture(es->hwndSelf);
4265 EDIT_ConfinePoint(es, &x, &y);
4266 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4267 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4268 EDIT_EM_ScrollCaret(es);
4269 es->region_posx = es->region_posy = 0;
4270 SetTimer(es->hwndSelf, 0, 100, NULL);
4271 return 0;
4272 }
4273
4274
4275 /*********************************************************************
4276 *
4277 * WM_LBUTTONUP
4278 *
4279 */
4280 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4281 {
4282 if (es->bCaptureState) {
4283 KillTimer(es->hwndSelf, 0);
4284 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4285 }
4286 es->bCaptureState = FALSE;
4287 return 0;
4288 }
4289
4290
4291 /*********************************************************************
4292 *
4293 * WM_MBUTTONDOWN
4294 *
4295 */
4296 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4297 {
4298 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4299 return 0;
4300 }
4301
4302
4303 /*********************************************************************
4304 *
4305 * WM_MOUSEMOVE
4306 *
4307 */
4308 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4309 {
4310 INT e;
4311 BOOL after_wrap;
4312 INT prex, prey;
4313
4314 if (GetCapture() != es->hwndSelf)
4315 return 0;
4316
4317 /*
4318 * FIXME: gotta do some scrolling if outside client
4319 * area. Maybe reset the timer ?
4320 */
4321 prex = x; prey = y;
4322 EDIT_ConfinePoint(es, &x, &y);
4323 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4324 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4325 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4326 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4327 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4328 return 0;
4329 }
4330
4331
4332 /*********************************************************************
4333 *
4334 * WM_NCCREATE
4335 *
4336 * See also EDIT_WM_StyleChanged
4337 */
4338 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4339 {
4340 EDITSTATE *es;
4341 UINT alloc_size;
4342
4343 TRACE("Creating %s edit control, style = %08lx\n",
4344 unicode ? "Unicode" : "ANSI", lpcs->style);
4345
4346 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4347 return FALSE;
4348 SetWindowLongW( hwnd, 0, (LONG)es );
4349
4350 /*
4351 * Note: since the EDITSTATE has not been fully initialized yet,
4352 * we can't use any API calls that may send
4353 * WM_XXX messages before WM_NCCREATE is completed.
4354 */
4355
4356 es->is_unicode = unicode;
4357 es->style = lpcs->style;
4358
4359 es->bEnableState = !(es->style & WS_DISABLED);
4360
4361 es->hwndSelf = hwnd;
4362 /* Save parent, which will be notified by EN_* messages */
4363 es->hwndParent = lpcs->hwndParent;
4364
4365 if (es->style & ES_COMBO)
4366 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4367
4368 /* Number overrides lowercase overrides uppercase (at least it
4369 * does in Win95). However I'll bet that ES_NUMBER would be
4370 * invalid under Win 3.1.
4371 */
4372 if (es->style & ES_NUMBER) {
4373 ; /* do not override the ES_NUMBER */
4374 } else if (es->style & ES_LOWERCASE) {
4375 es->style &= ~ES_UPPERCASE;
4376 }
4377 if (es->style & ES_MULTILINE) {
4378 es->buffer_limit = BUFLIMIT_MULTI;
4379 if (es->style & WS_VSCROLL)
4380 es->style |= ES_AUTOVSCROLL;
4381 if (es->style & WS_HSCROLL)
4382 es->style |= ES_AUTOHSCROLL;
4383 es->style &= ~ES_PASSWORD;
4384 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4385 /* Confirmed - RIGHT overrides CENTER */
4386 if (es->style & ES_RIGHT)
4387 es->style &= ~ES_CENTER;
4388 es->style &= ~WS_HSCROLL;
4389 es->style &= ~ES_AUTOHSCROLL;
4390 }
4391
4392 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4393 es->style |= ES_AUTOVSCROLL;
4394 } else {
4395 es->buffer_limit = BUFLIMIT_SINGLE;
4396 es->style &= ~ES_CENTER;
4397 es->style &= ~ES_RIGHT;
4398 es->style &= ~WS_HSCROLL;
4399 es->style &= ~WS_VSCROLL;
4400 es->style &= ~ES_AUTOVSCROLL;
4401 es->style &= ~ES_WANTRETURN;
4402 if (es->style & ES_PASSWORD)
4403 es->password_char = '*';
4404
4405 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4406 es->style |= ES_AUTOHSCROLL;
4407 }
4408
4409 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4410 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4411 return FALSE;
4412 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4413
4414 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4415 return FALSE;
4416 es->undo_buffer_size = es->buffer_size;
4417
4418 if (es->style & ES_MULTILINE)
4419 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4420 return FALSE;
4421 es->line_count = 1;
4422
4423 /*
4424 * In Win95 look and feel, the WS_BORDER style is replaced by the
4425 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4426 * control a non client area. Not always. This coordinates in some
4427 * way with the window creation code in dialog.c When making
4428 * modifications please ensure that the code still works for edit
4429 * controls created directly with style 0x50800000, exStyle 0 (
4430 * which should have a single pixel border)
4431 */
4432 es->style &= ~WS_BORDER;
4433
4434 return TRUE;
4435 }
4436
4437 /*********************************************************************
4438 *
4439 * WM_PAINT
4440 *
4441 */
4442 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam)
4443 {
4444 PAINTSTRUCT ps;
4445 INT i;
4446 HDC dc;
4447 HFONT old_font = 0;
4448 RECT rc;
4449 RECT rcLine;
4450 RECT rcRgn;
4451 BOOL rev = es->bEnableState &&
4452 ((es->flags & EF_FOCUSED) ||
4453 (es->style & ES_NOHIDESEL));
4454 if (!wParam)
4455 dc = BeginPaint(es->hwndSelf, &ps);
4456 else
4457 dc = (HDC) wParam;
4458 if(es->style & WS_BORDER) {
4459 GetClientRect(es->hwndSelf, &rc);
4460 if(es->style & ES_MULTILINE) {
4461 if(es->style & WS_HSCROLL) rc.bottom++;
4462 if(es->style & WS_VSCROLL) rc.right++;
4463 }
4464 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4465 }
4466 IntersectClipRect(dc, es->format_rect.left,
4467 es->format_rect.top,
4468 es->format_rect.right,
4469 es->format_rect.bottom);
4470 if (es->style & ES_MULTILINE) {
4471 GetClientRect(es->hwndSelf, &rc);
4472 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4473 }
4474 if (es->font)
4475 old_font = SelectObject(dc, es->font);
4476 EDIT_NotifyCtlColor(es, dc);
4477
4478 if (!es->bEnableState)
4479 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4480 GetClipBox(dc, &rcRgn);
4481 if (es->style & ES_MULTILINE) {
4482 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4483 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4484 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4485 if (IntersectRect(&rc, &rcRgn, &rcLine))
4486 EDIT_PaintLine(es, dc, i, rev);
4487 }
4488 } else {
4489 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4490 if (IntersectRect(&rc, &rcRgn, &rcLine))
4491 EDIT_PaintLine(es, dc, 0, rev);
4492 }
4493 if (es->font)
4494 SelectObject(dc, old_font);
4495
4496 if (!wParam)
4497 EndPaint(es->hwndSelf, &ps);
4498 }
4499
4500
4501 /*********************************************************************
4502 *
4503 * WM_PASTE
4504 *
4505 */
4506 static void EDIT_WM_Paste(EDITSTATE *es)
4507 {
4508 HGLOBAL hsrc;
4509 LPWSTR src;
4510
4511 /* Protect read-only edit control from modification */
4512 if(es->style & ES_READONLY)
4513 return;
4514
4515 OpenClipboard(es->hwndSelf);
4516 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4517 src = (LPWSTR)GlobalLock(hsrc);
4518 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4519 GlobalUnlock(hsrc);
4520 }
4521 CloseClipboard();
4522 }
4523
4524
4525 /*********************************************************************
4526 *
4527 * WM_SETFOCUS
4528 *
4529 */
4530 static void EDIT_WM_SetFocus(EDITSTATE *es)
4531 {
4532 es->flags |= EF_FOCUSED;
4533 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4534 EDIT_SetCaretPos(es, es->selection_end,
4535 es->flags & EF_AFTER_WRAP);
4536 if(!(es->style & ES_NOHIDESEL))
4537 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4538 ShowCaret(es->hwndSelf);
4539 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4540 }
4541
4542
4543 /*********************************************************************
4544 *
4545 * WM_SETFONT
4546 *
4547 * With Win95 look the margins are set to default font value unless
4548 * the system font (font == 0) is being set, in which case they are left
4549 * unchanged.
4550 *
4551 */
4552 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4553 {
4554 TEXTMETRICW tm;
4555 HDC dc;
4556 HFONT old_font = 0;
4557 RECT r;
4558
4559 es->font = font;
4560 dc = GetDC(es->hwndSelf);
4561 if (font)
4562 old_font = SelectObject(dc, font);
4563 GetTextMetricsW(dc, &tm);
4564 es->line_height = tm.tmHeight;
4565 es->char_width = tm.tmAveCharWidth;
4566 if (font)
4567 SelectObject(dc, old_font);
4568 ReleaseDC(es->hwndSelf, dc);
4569 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4570 EC_USEFONTINFO, EC_USEFONTINFO);
4571
4572 /* Force the recalculation of the format rect for each font change */
4573 GetClientRect(es->hwndSelf, &r);
4574 EDIT_SetRectNP(es, &r);
4575
4576 if (es->style & ES_MULTILINE)
4577 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4578 else
4579 EDIT_CalcLineWidth_SL(es);
4580
4581 if (redraw)
4582 EDIT_UpdateText(es, NULL, TRUE);
4583 if (es->flags & EF_FOCUSED) {
4584 DestroyCaret();
4585 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4586 EDIT_SetCaretPos(es, es->selection_end,
4587 es->flags & EF_AFTER_WRAP);
4588 ShowCaret(es->hwndSelf);
4589 }
4590 }
4591
4592
4593 /*********************************************************************
4594 *
4595 * WM_SETTEXT
4596 *
4597 * NOTES
4598 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4599 * The modified flag is reset. No notifications are sent.
4600 *
4601 * For single-line controls, reception of WM_SETTEXT triggers:
4602 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4603 *
4604 */
4605 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode)
4606 {
4607 LPWSTR text = NULL;
4608
4609 if(unicode)
4610 text = (LPWSTR)lParam;
4611 else if (lParam)
4612 {
4613 LPCSTR textA = (LPCSTR)lParam;
4614 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4615 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4616 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4617 }
4618
4619 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4620 if (text) {
4621 TRACE("%s\n", debugstr_w(text));
4622 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
4623 if(!unicode)
4624 HeapFree(GetProcessHeap(), 0, text);
4625 } else {
4626 static const WCHAR empty_stringW[] = {0};
4627 TRACE("<NULL>\n");
4628 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
4629 }
4630 es->x_offset = 0;
4631 es->flags &= ~EF_MODIFIED;
4632 EDIT_EM_SetSel(es, 0, 0, FALSE);
4633 /* Send the notification after the selection start and end have been set
4634 * edit control doesn't send notification on WM_SETTEXT
4635 * if it is multiline, or it is part of combobox
4636 */
4637 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4638 {
4639 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4640 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4641 }
4642 EDIT_EM_ScrollCaret(es);
4643 }
4644
4645
4646 /*********************************************************************
4647 *
4648 * WM_SIZE
4649 *
4650 */
4651 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
4652 {
4653 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4654 RECT rc;
4655 TRACE("width = %d, height = %d\n", width, height);
4656 SetRect(&rc, 0, 0, width, height);
4657 EDIT_SetRectNP(es, &rc);
4658 EDIT_UpdateText(es, NULL, TRUE);
4659 }
4660 }
4661
4662
4663 /*********************************************************************
4664 *
4665 * WM_STYLECHANGED
4666 *
4667 * This message is sent by SetWindowLong on having changed either the Style
4668 * or the extended style.
4669 *
4670 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4671 *
4672 * See also EDIT_WM_NCCreate
4673 *
4674 * It appears that the Windows version of the edit control allows the style
4675 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4676 * style variable which will generally be different. In this function we
4677 * update the internal style based on what changed in the externally visible
4678 * style.
4679 *
4680 * Much of this content as based upon the MSDN, especially:
4681 * Platform SDK Documentation -> User Interface Services ->
4682 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4683 * Edit Control Styles
4684 */
4685 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4686 {
4687 if (GWL_STYLE == which) {
4688 DWORD style_change_mask;
4689 DWORD new_style;
4690 /* Only a subset of changes can be applied after the control
4691 * has been created.
4692 */
4693 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4694 ES_NUMBER;
4695 if (es->style & ES_MULTILINE)
4696 style_change_mask |= ES_WANTRETURN;
4697
4698 new_style = style->styleNew & style_change_mask;
4699
4700 /* Number overrides lowercase overrides uppercase (at least it
4701 * does in Win95). However I'll bet that ES_NUMBER would be
4702 * invalid under Win 3.1.
4703 */
4704 if (new_style & ES_NUMBER) {
4705 ; /* do not override the ES_NUMBER */
4706 } else if (new_style & ES_LOWERCASE) {
4707 new_style &= ~ES_UPPERCASE;
4708 }
4709
4710 es->style = (es->style & ~style_change_mask) | new_style;
4711 } else if (GWL_EXSTYLE == which) {
4712 ; /* FIXME - what is needed here */
4713 } else {
4714 WARN ("Invalid style change %d\n",which);
4715 }
4716
4717 return 0;
4718 }
4719
4720 /*********************************************************************
4721 *
4722 * WM_SYSKEYDOWN
4723 *
4724 */
4725 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4726 {
4727 if ((key == VK_BACK) && (key_data & 0x2000)) {
4728 if (EDIT_EM_CanUndo(es))
4729 EDIT_EM_Undo(es);
4730 return 0;
4731 } else if (key == VK_UP || key == VK_DOWN) {
4732 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4733 return 0;
4734 }
4735 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4736 }
4737
4738
4739 /*********************************************************************
4740 *
4741 * WM_TIMER
4742 *
4743 */
4744 static void EDIT_WM_Timer(EDITSTATE *es)
4745 {
4746 if (es->region_posx < 0) {
4747 EDIT_MoveBackward(es, TRUE);
4748 } else if (es->region_posx > 0) {
4749 EDIT_MoveForward(es, TRUE);
4750 }
4751 /*
4752 * FIXME: gotta do some vertical scrolling here, like
4753 * EDIT_EM_LineScroll(hwnd, 0, 1);
4754 */
4755 }
4756
4757 /*********************************************************************
4758 *
4759 * WM_VSCROLL
4760 *
4761 */
4762 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4763 {
4764 INT dy;
4765
4766 if (!(es->style & ES_MULTILINE))
4767 return 0;
4768
4769 if (!(es->style & ES_AUTOVSCROLL))
4770 return 0;
4771
4772 dy = 0;
4773 switch (action) {
4774 case SB_LINEUP:
4775 case SB_LINEDOWN:
4776 case SB_PAGEUP:
4777 case SB_PAGEDOWN:
4778 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
4779 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
4780 (action == SB_PAGEUP ? "SB_PAGEUP" :
4781 "SB_PAGEDOWN"))));
4782 EDIT_EM_Scroll(es, action);
4783 return 0;
4784 case SB_TOP:
4785 TRACE("SB_TOP\n");
4786 dy = -es->y_offset;
4787 break;
4788 case SB_BOTTOM:
4789 TRACE("SB_BOTTOM\n");
4790 dy = es->line_count - 1 - es->y_offset;
4791 break;
4792 case SB_THUMBTRACK:
4793 TRACE("SB_THUMBTRACK %d\n", pos);
4794 es->flags |= EF_VSCROLL_TRACK;
4795 if(es->style & WS_VSCROLL)
4796 dy = pos - es->y_offset;
4797 else
4798 {
4799 /* Assume default scroll range 0-100 */
4800 INT vlc, new_y;
4801 /* Sanity check */
4802 if(pos < 0 || pos > 100) return 0;
4803 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4804 new_y = pos * (es->line_count - vlc) / 100;
4805 dy = es->line_count ? (new_y - es->y_offset) : 0;
4806 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4807 es->line_count, es->y_offset, pos, dy);
4808 }
4809 break;
4810 case SB_THUMBPOSITION:
4811 TRACE("SB_THUMBPOSITION %d\n", pos);
4812 es->flags &= ~EF_VSCROLL_TRACK;
4813 if(es->style & WS_VSCROLL)
4814 dy = pos - es->y_offset;
4815 else
4816 {
4817 /* Assume default scroll range 0-100 */
4818 INT vlc, new_y;
4819 /* Sanity check */
4820 if(pos < 0 || pos > 100) return 0;
4821 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4822 new_y = pos * (es->line_count - vlc) / 100;
4823 dy = es->line_count ? (new_y - es->y_offset) : 0;
4824 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4825 es->line_count, es->y_offset, pos, dy);
4826 }
4827 if (!dy)
4828 {
4829 /* force scroll info update */
4830 EDIT_UpdateScrollInfo(es);
4831 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
4832 }
4833 break;
4834 case SB_ENDSCROLL:
4835 TRACE("SB_ENDSCROLL\n");
4836 break;
4837 /*
4838 * FIXME : the next two are undocumented !
4839 * Are we doing the right thing ?
4840 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4841 * although it's also a regular control message.
4842 */
4843 case EM_GETTHUMB: /* this one is used by NT notepad */
4844 case EM_GETTHUMB16:
4845 {
4846 LRESULT ret;
4847 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4848 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4849 else
4850 {
4851 /* Assume default scroll range 0-100 */
4852 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4853 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4854 }
4855 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4856 return ret;
4857 }
4858 case EM_LINESCROLL16:
4859 TRACE("EM_LINESCROLL16 %d\n", pos);
4860 dy = pos;
4861 break;
4862
4863 default:
4864 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4865 action, action);
4866 return 0;
4867 }
4868 if (dy)
4869 EDIT_EM_LineScroll(es, 0, dy);
4870 return 0;
4871 }
4872
4873 /*********************************************************************
4874 *
4875 * EDIT_UpdateText
4876 *
4877 */
4878 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
4879 {
4880 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4881 InvalidateRgn(es->hwndSelf, hrgn, bErase);
4882 }
4883
4884
4885 /*********************************************************************
4886 *
4887 * EDIT_UpdateText
4888 *
4889 */
4890 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
4891 {
4892 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4893 InvalidateRect(es->hwndSelf, rc, bErase);
4894 }
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