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Get rid of the WIN_SetRectangles export from user32.
[wine.git] / dlls / user / edit.c
blob83fba06f85660af9e9622f7057d5b56d65ef09dc
1 /*
2 * Edit control
3 *
4 * Copyright David W. Metcalfe, 1994
5 * Copyright William Magro, 1995, 1996
6 * Copyright Frans van Dorsselaer, 1996, 1997
7 *
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * TODO:
24 * - ES_CENTER
25 * - ES_RIGHT
26 * - ES_OEMCONVERT
27 * -!ES_AUTOVSCROLL (every multi line control *is* auto vscroll)
28 * -!ES_AUTOHSCROLL (every single line control *is* auto hscroll)
29 *
30 * When there is no autoscrolling, the control should first check whether
31 * the new text would fit. If not, an EN_MAXTEXT should be sent.
32 * However, currently this would require the actual change to be made,
33 * then call EDIT_BuildLineDefs() and then find out that the new text doesn't
34 * fit. After all this, things should be put back in the state before the
35 * changes. Note that for multi line controls !ES_AUTOHSCROLL works : wordwrap.
36 *
37 */
38
39 #include "config.h"
40
41 #include <stdarg.h>
42 #include <string.h>
43 #include <stdlib.h>
44
45 #include "windef.h"
46 #include "winbase.h"
47 #include "winnt.h"
48 #include "wownt32.h"
49 #include "win.h"
50 #include "wine/winbase16.h"
51 #include "wine/winuser16.h"
52 #include "wine/unicode.h"
53 #include "controls.h"
54 #include "local.h"
55 #include "message.h"
56 #include "user.h"
57 #include "wine/debug.h"
58
59 WINE_DEFAULT_DEBUG_CHANNEL(edit);
60 WINE_DECLARE_DEBUG_CHANNEL(combo);
61 WINE_DECLARE_DEBUG_CHANNEL(relay);
62
63 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
64 FIXME: BTW, new specs say 65535 (do you dare ???) */
65 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
66 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
67 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
68 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
69
70 /*
71 * extra flags for EDITSTATE.flags field
72 */
73 #define EF_MODIFIED 0x0001 /* text has been modified */
74 #define EF_FOCUSED 0x0002 /* we have input focus */
75 #define EF_UPDATE 0x0004 /* notify parent of changed state */
76 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
77 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
78 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
79 wrapped line, instead of in front of the next character */
80 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
81
82 typedef enum
83 {
84 END_0 = 0, /* line ends with terminating '\0' character */
85 END_WRAP, /* line is wrapped */
86 END_HARD, /* line ends with a hard return '\r\n' */
87 END_SOFT, /* line ends with a soft return '\r\r\n' */
88 END_RICH /* line ends with a single '\n' */
89 } LINE_END;
90
91 typedef struct tagLINEDEF {
92 INT length; /* bruto length of a line in bytes */
93 INT net_length; /* netto length of a line in visible characters */
94 LINE_END ending;
95 INT width; /* width of the line in pixels */
96 INT index; /* line index into the buffer */
97 struct tagLINEDEF *next;
98 } LINEDEF;
99
100 typedef struct
101 {
102 BOOL is_unicode; /* how the control was created */
103 LPWSTR text; /* the actual contents of the control */
104 UINT buffer_size; /* the size of the buffer in characters */
105 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
106 HFONT font; /* NULL means standard system font */
107 INT x_offset; /* scroll offset for multi lines this is in pixels
108 for single lines it's in characters */
109 INT line_height; /* height of a screen line in pixels */
110 INT char_width; /* average character width in pixels */
111 DWORD style; /* sane version of wnd->dwStyle */
112 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
113 INT undo_insert_count; /* number of characters inserted in sequence */
114 UINT undo_position; /* character index of the insertion and deletion */
115 LPWSTR undo_text; /* deleted text */
116 UINT undo_buffer_size; /* size of the deleted text buffer */
117 INT selection_start; /* == selection_end if no selection */
118 INT selection_end; /* == current caret position */
119 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
120 INT left_margin; /* in pixels */
121 INT right_margin; /* in pixels */
122 RECT format_rect;
123 INT text_width; /* width of the widest line in pixels for multi line controls
124 and just line width for single line controls */
125 INT region_posx; /* Position of cursor relative to region: */
126 INT region_posy; /* -1: to left, 0: within, 1: to right */
127 EDITWORDBREAKPROC16 word_break_proc16;
128 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
129 INT line_count; /* number of lines */
130 INT y_offset; /* scroll offset in number of lines */
131 BOOL bCaptureState; /* flag indicating whether mouse was captured */
132 BOOL bEnableState; /* flag keeping the enable state */
133 HWND hwndSelf; /* the our window handle */
134 HWND hwndParent; /* Handle of parent for sending EN_* messages.
135 Even if parent will change, EN_* messages
136 should be sent to the first parent. */
137 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
138 /*
139 * only for multi line controls
140 */
141 INT lock_count; /* amount of re-entries in the EditWndProc */
142 INT tabs_count;
143 LPINT tabs;
144 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
145 HLOCAL hloc32W; /* our unicode local memory block */
146 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
147 or EM_SETHANDLE16 */
148 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
149 or EM_SETHANDLE */
150 } EDITSTATE;
151
152
153 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
154 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
155
156 /* used for disabled or read-only edit control */
157 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
158 do \
159 { /* Notify parent which has created this edit control */ \
160 TRACE("notification " str " sent to hwnd=%p\n", es->hwndParent); \
161 SendMessageW(es->hwndParent, WM_COMMAND, \
162 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
163 (LPARAM)(es->hwndSelf)); \
164 } while(0)
165
166 /*********************************************************************
167 *
168 * Declarations
169 *
170 */
171
172 /*
173 * These functions have trivial implementations
174 * We still like to call them internally
175 * "static inline" makes them more like macro's
176 */
177 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
178 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
179 static inline void EDIT_WM_Clear(EDITSTATE *es);
180 static inline void EDIT_WM_Cut(EDITSTATE *es);
181
182 /*
183 * Helper functions only valid for one type of control
184 */
185 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
186 static void EDIT_CalcLineWidth_SL(EDITSTATE *es);
187 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
188 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend);
189 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend);
190 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend);
191 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend);
192 /*
193 * Helper functions valid for both single line _and_ multi line controls
194 */
195 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
196 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
197 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
198 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
199 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end);
200 static void EDIT_LockBuffer(EDITSTATE *es);
201 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size);
202 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
203 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend);
204 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend);
205 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend);
206 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend);
207 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend);
208 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend);
209 static void EDIT_PaintLine(EDITSTATE *es, HDC hdc, INT line, BOOL rev);
210 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
211 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos, BOOL after_wrap);
212 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT lprc);
213 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force);
214 static void EDIT_UpdateScrollInfo(EDITSTATE *es);
215 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
216 /*
217 * EM_XXX message handlers
218 */
219 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y);
220 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
221 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
222 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es);
223 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
224 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end);
225 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es);
226 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
227 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
228 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
229 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy);
230 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy);
231 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap);
232 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit);
233 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action);
234 static void EDIT_EM_ScrollCaret(EDITSTATE *es);
235 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc);
236 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc);
237 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
238 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
239 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c);
240 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
241 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
242 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
243 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam);
244 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
245 static BOOL EDIT_EM_Undo(EDITSTATE *es);
246 /*
247 * WM_XXX message handlers
248 */
249 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c);
250 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND conrtol);
251 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y);
252 static void EDIT_WM_Copy(EDITSTATE *es);
253 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name);
254 static LRESULT EDIT_WM_Destroy(EDITSTATE *es);
255 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc);
256 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
257 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos);
258 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key);
259 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es);
260 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es);
261 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y);
262 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es);
263 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es);
264 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y);
265 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode);
266 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam);
267 static void EDIT_WM_Paste(EDITSTATE *es);
268 static void EDIT_WM_SetFocus(EDITSTATE *es);
269 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw);
270 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode);
271 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height);
272 static LRESULT EDIT_WM_StyleChanged(EDITSTATE *es, WPARAM which, const STYLESTRUCT *style);
273 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data);
274 static void EDIT_WM_Timer(EDITSTATE *es);
275 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos);
276 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase);
277 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase);
278
279 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
280 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
281
282 /*********************************************************************
283 * edit class descriptor
284 */
285 const struct builtin_class_descr EDIT_builtin_class =
286 {
287 "Edit", /* name */
288 CS_DBLCLKS | CS_PARENTDC, /* style */
289 EditWndProcA, /* procA */
290 EditWndProcW, /* procW */
291 sizeof(EDITSTATE *), /* extra */
292 IDC_IBEAM, /* cursor */
293 0 /* brush */
294 };
295
296
297 /*********************************************************************
298 *
299 * EM_CANUNDO
300 *
301 */
302 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
303 {
304 return (es->undo_insert_count || strlenW(es->undo_text));
305 }
306
307
308 /*********************************************************************
309 *
310 * EM_EMPTYUNDOBUFFER
311 *
312 */
313 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
314 {
315 es->undo_insert_count = 0;
316 *es->undo_text = '\0';
317 }
318
319
320 /*********************************************************************
321 *
322 * WM_CLEAR
323 *
324 */
325 static inline void EDIT_WM_Clear(EDITSTATE *es)
326 {
327 static const WCHAR empty_stringW[] = {0};
328
329 /* Protect read-only edit control from modification */
330 if(es->style & ES_READONLY)
331 return;
332
333 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
334 }
335
336
337 /*********************************************************************
338 *
339 * WM_CUT
340 *
341 */
342 static inline void EDIT_WM_Cut(EDITSTATE *es)
343 {
344 EDIT_WM_Copy(es);
345 EDIT_WM_Clear(es);
346 }
347
348
349 /**********************************************************************
350 * get_app_version
351 *
352 * Returns the window version in case Wine emulates a later version
353 * of windows than the application expects.
354 *
355 * In a number of cases when windows runs an application that was
356 * designed for an earlier windows version, windows reverts
357 * to "old" behaviour of that earlier version.
358 *
359 * An example is a disabled edit control that needs to be painted.
360 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
361 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
362 * applications with an expected version 0f 4.0 or higher.
363 *
364 */
365 static DWORD get_app_version(void)
366 {
367 static DWORD version;
368 if (!version)
369 {
370 DWORD dwEmulatedVersion;
371 OSVERSIONINFOW info;
372 DWORD dwProcVersion = GetProcessVersion(0);
373
374 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
375 GetVersionExW( &info );
376 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
377 /* FIXME: this may not be 100% correct; see discussion on the
378 * wine developer list in Nov 1999 */
379 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
380 }
381 return version;
382 }
383
384
385 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
386 {
387 UINT msg;
388
389 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
390 msg = WM_CTLCOLORSTATIC;
391 else
392 msg = WM_CTLCOLOREDIT;
393
394 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
395 return (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
396 }
397
398 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
399 {
400 if(unicode)
401 return DefWindowProcW(hwnd, msg, wParam, lParam);
402 else
403 return DefWindowProcA(hwnd, msg, wParam, lParam);
404 }
405
406 /*********************************************************************
407 *
408 * EditWndProc_common
409 *
410 * The messages are in the order of the actual integer values
411 * (which can be found in include/windows.h)
412 * Wherever possible the 16 bit versions are converted to
413 * the 32 bit ones, so that we can 'fall through' to the
414 * helper functions. These are mostly 32 bit (with a few
415 * exceptions, clearly indicated by a '16' extension to their
416 * names).
417 *
418 */
419 static LRESULT WINAPI EditWndProc_common( HWND hwnd, UINT msg,
420 WPARAM wParam, LPARAM lParam, BOOL unicode )
421 {
422 EDITSTATE *es = (EDITSTATE *)GetWindowLongW( hwnd, 0 );
423 LRESULT result = 0;
424
425 TRACE("hwnd=%p msg=%x (%s) wparam=%x lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
426
427 if (!es && msg != WM_NCCREATE)
428 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
429 else if (msg == WM_NCCREATE)
430 return EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
431 else if (msg == WM_DESTROY)
432 return EDIT_WM_Destroy(es);
433
434
435 if (es) EDIT_LockBuffer(es);
436
437 switch (msg) {
438 case EM_GETSEL16:
439 wParam = 0;
440 lParam = 0;
441 /* fall through */
442 case EM_GETSEL:
443 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
444 break;
445
446 case EM_SETSEL16:
447 if ((short)LOWORD(lParam) == -1)
448 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
449 else
450 EDIT_EM_SetSel(es, LOWORD(lParam), HIWORD(lParam), FALSE);
451 if (!wParam)
452 EDIT_EM_ScrollCaret(es);
453 result = 1;
454 break;
455 case EM_SETSEL:
456 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
457 EDIT_EM_ScrollCaret(es);
458 result = 1;
459 break;
460
461 case EM_GETRECT16:
462 if (lParam)
463 {
464 RECT16 *r16 = MapSL(lParam);
465 r16->left = es->format_rect.left;
466 r16->top = es->format_rect.top;
467 r16->right = es->format_rect.right;
468 r16->bottom = es->format_rect.bottom;
469 }
470 break;
471 case EM_GETRECT:
472 if (lParam)
473 CopyRect((LPRECT)lParam, &es->format_rect);
474 break;
475
476 case EM_SETRECT16:
477 if ((es->style & ES_MULTILINE) && lParam) {
478 RECT rc;
479 RECT16 *r16 = MapSL(lParam);
480 rc.left = r16->left;
481 rc.top = r16->top;
482 rc.right = r16->right;
483 rc.bottom = r16->bottom;
484 EDIT_SetRectNP(es, &rc);
485 EDIT_UpdateText(es, NULL, TRUE);
486 }
487 break;
488 case EM_SETRECT:
489 if ((es->style & ES_MULTILINE) && lParam) {
490 EDIT_SetRectNP(es, (LPRECT)lParam);
491 EDIT_UpdateText(es, NULL, TRUE);
492 }
493 break;
494
495 case EM_SETRECTNP16:
496 if ((es->style & ES_MULTILINE) && lParam) {
497 RECT rc;
498 RECT16 *r16 = MapSL(lParam);
499 rc.left = r16->left;
500 rc.top = r16->top;
501 rc.right = r16->right;
502 rc.bottom = r16->bottom;
503 EDIT_SetRectNP(es, &rc);
504 }
505 break;
506 case EM_SETRECTNP:
507 if ((es->style & ES_MULTILINE) && lParam)
508 EDIT_SetRectNP(es, (LPRECT)lParam);
509 break;
510
511 case EM_SCROLL16:
512 case EM_SCROLL:
513 result = EDIT_EM_Scroll(es, (INT)wParam);
514 break;
515
516 case EM_LINESCROLL16:
517 wParam = (WPARAM)(INT)(SHORT)HIWORD(lParam);
518 lParam = (LPARAM)(INT)(SHORT)LOWORD(lParam);
519 /* fall through */
520 case EM_LINESCROLL:
521 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
522 break;
523
524 case EM_SCROLLCARET16:
525 case EM_SCROLLCARET:
526 EDIT_EM_ScrollCaret(es);
527 result = 1;
528 break;
529
530 case EM_GETMODIFY16:
531 case EM_GETMODIFY:
532 result = ((es->flags & EF_MODIFIED) != 0);
533 break;
534
535 case EM_SETMODIFY16:
536 case EM_SETMODIFY:
537 if (wParam)
538 es->flags |= EF_MODIFIED;
539 else
540 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
541 break;
542
543 case EM_GETLINECOUNT16:
544 case EM_GETLINECOUNT:
545 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
546 break;
547
548 case EM_LINEINDEX16:
549 if ((INT16)wParam == -1)
550 wParam = (WPARAM)-1;
551 /* fall through */
552 case EM_LINEINDEX:
553 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
554 break;
555
556 case EM_SETHANDLE16:
557 EDIT_EM_SetHandle16(es, (HLOCAL16)wParam);
558 break;
559 case EM_SETHANDLE:
560 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
561 break;
562
563 case EM_GETHANDLE16:
564 result = (LRESULT)EDIT_EM_GetHandle16(es);
565 break;
566 case EM_GETHANDLE:
567 result = (LRESULT)EDIT_EM_GetHandle(es);
568 break;
569
570 case EM_GETTHUMB16:
571 case EM_GETTHUMB:
572 result = EDIT_EM_GetThumb(es);
573 break;
574
575 /* these messages missing from specs */
576 case WM_USER+15:
577 case 0x00bf:
578 case WM_USER+16:
579 case 0x00c0:
580 case WM_USER+19:
581 case 0x00c3:
582 case WM_USER+26:
583 case 0x00ca:
584 FIXME("undocumented message 0x%x, please report\n", msg);
585 result = DefWindowProcW(hwnd, msg, wParam, lParam);
586 break;
587
588 case EM_LINELENGTH16:
589 case EM_LINELENGTH:
590 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
591 break;
592
593 case EM_REPLACESEL16:
594 lParam = (LPARAM)MapSL(lParam);
595 unicode = FALSE; /* 16-bit message is always ascii */
596 /* fall through */
597 case EM_REPLACESEL:
598 {
599 LPWSTR textW;
600
601 if(unicode)
602 textW = (LPWSTR)lParam;
603 else
604 {
605 LPSTR textA = (LPSTR)lParam;
606 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
607 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
608 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
609 }
610
611 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
612 result = 1;
613
614 if(!unicode)
615 HeapFree(GetProcessHeap(), 0, textW);
616 break;
617 }
618
619 case EM_GETLINE16:
620 lParam = (LPARAM)MapSL(lParam);
621 unicode = FALSE; /* 16-bit message is always ascii */
622 /* fall through */
623 case EM_GETLINE:
624 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
625 break;
626
627 case EM_LIMITTEXT16:
628 case EM_SETLIMITTEXT:
629 EDIT_EM_SetLimitText(es, (INT)wParam);
630 break;
631
632 case EM_CANUNDO16:
633 case EM_CANUNDO:
634 result = (LRESULT)EDIT_EM_CanUndo(es);
635 break;
636
637 case EM_UNDO16:
638 case EM_UNDO:
639 case WM_UNDO:
640 result = (LRESULT)EDIT_EM_Undo(es);
641 break;
642
643 case EM_FMTLINES16:
644 case EM_FMTLINES:
645 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
646 break;
647
648 case EM_LINEFROMCHAR16:
649 case EM_LINEFROMCHAR:
650 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
651 break;
652
653 case EM_SETTABSTOPS16:
654 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
655 break;
656 case EM_SETTABSTOPS:
657 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
658 break;
659
660 case EM_SETPASSWORDCHAR16:
661 unicode = FALSE; /* 16-bit message is always ascii */
662 /* fall through */
663 case EM_SETPASSWORDCHAR:
664 {
665 WCHAR charW = 0;
666
667 if(unicode)
668 charW = (WCHAR)wParam;
669 else
670 {
671 CHAR charA = wParam;
672 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
673 }
674
675 EDIT_EM_SetPasswordChar(es, charW);
676 break;
677 }
678
679 case EM_EMPTYUNDOBUFFER16:
680 case EM_EMPTYUNDOBUFFER:
681 EDIT_EM_EmptyUndoBuffer(es);
682 break;
683
684 case EM_GETFIRSTVISIBLELINE16:
685 result = es->y_offset;
686 break;
687 case EM_GETFIRSTVISIBLELINE:
688 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
689 break;
690
691 case EM_SETREADONLY16:
692 case EM_SETREADONLY:
693 if (wParam) {
694 SetWindowLongW( hwnd, GWL_STYLE,
695 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
696 es->style |= ES_READONLY;
697 } else {
698 SetWindowLongW( hwnd, GWL_STYLE,
699 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
700 es->style &= ~ES_READONLY;
701 }
702 result = 1;
703 break;
704
705 case EM_SETWORDBREAKPROC16:
706 EDIT_EM_SetWordBreakProc16(es, (EDITWORDBREAKPROC16)lParam);
707 break;
708 case EM_SETWORDBREAKPROC:
709 EDIT_EM_SetWordBreakProc(es, lParam);
710 break;
711
712 case EM_GETWORDBREAKPROC16:
713 result = (LRESULT)es->word_break_proc16;
714 break;
715 case EM_GETWORDBREAKPROC:
716 result = (LRESULT)es->word_break_proc;
717 break;
718
719 case EM_GETPASSWORDCHAR16:
720 unicode = FALSE; /* 16-bit message is always ascii */
721 /* fall through */
722 case EM_GETPASSWORDCHAR:
723 {
724 if(unicode)
725 result = es->password_char;
726 else
727 {
728 WCHAR charW = es->password_char;
729 CHAR charA = 0;
730 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
731 result = charA;
732 }
733 break;
734 }
735
736 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
737
738 case EM_SETMARGINS:
739 EDIT_EM_SetMargins(es, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
740 break;
741
742 case EM_GETMARGINS:
743 result = MAKELONG(es->left_margin, es->right_margin);
744 break;
745
746 case EM_GETLIMITTEXT:
747 result = es->buffer_limit;
748 break;
749
750 case EM_POSFROMCHAR:
751 result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
752 break;
753
754 case EM_CHARFROMPOS:
755 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
756 break;
757
758 /* End of the EM_ messages which were in numerical order; what order
759 * are these in? vaguely alphabetical?
760 */
761
762 case WM_GETDLGCODE:
763 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
764
765 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
766 {
767 int vk = (int)((LPMSG)lParam)->wParam;
768
769 if (vk == VK_RETURN && (GetWindowLongW( hwnd, GWL_STYLE ) & ES_WANTRETURN))
770 {
771 result |= DLGC_WANTMESSAGE;
772 }
773 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
774 {
775 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
776 result |= DLGC_WANTMESSAGE;
777 }
778 }
779 break;
780
781 case WM_IME_CHAR:
782 if (!unicode)
783 {
784 WCHAR charW;
785 CHAR strng[2];
786
787 strng[0] = wParam >> 8;
788 strng[1] = wParam & 0xff;
789 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
790 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
791 EDIT_WM_Char(es, charW);
792 break;
793 }
794 /* fall through */
795 case WM_CHAR:
796 {
797 WCHAR charW;
798
799 if(unicode)
800 charW = wParam;
801 else
802 {
803 CHAR charA = wParam;
804 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
805 }
806
807 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
808 {
809 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
810 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
811 break;
812 }
813 EDIT_WM_Char(es, charW);
814 break;
815 }
816
817 case WM_CLEAR:
818 EDIT_WM_Clear(es);
819 break;
820
821 case WM_COMMAND:
822 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
823 break;
824
825 case WM_CONTEXTMENU:
826 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
827 break;
828
829 case WM_COPY:
830 EDIT_WM_Copy(es);
831 break;
832
833 case WM_CREATE:
834 if(unicode)
835 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
836 else
837 {
838 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
839 LPWSTR nameW = NULL;
840 if(nameA)
841 {
842 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
843 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
844 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
845 }
846 result = EDIT_WM_Create(es, nameW);
847 if(nameW)
848 HeapFree(GetProcessHeap(), 0, nameW);
849 }
850 break;
851
852 case WM_CUT:
853 EDIT_WM_Cut(es);
854 break;
855
856 case WM_ENABLE:
857 es->bEnableState = (BOOL) wParam;
858 EDIT_UpdateText(es, NULL, TRUE);
859 break;
860
861 case WM_ERASEBKGND:
862 result = EDIT_WM_EraseBkGnd(es, (HDC)wParam);
863 break;
864
865 case WM_GETFONT:
866 result = (LRESULT)es->font;
867 break;
868
869 case WM_GETTEXT:
870 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
871 break;
872
873 case WM_GETTEXTLENGTH:
874 if (unicode) result = strlenW(es->text);
875 else result = WideCharToMultiByte( CP_ACP, 0, es->text, strlenW(es->text),
876 NULL, 0, NULL, NULL );
877 break;
878
879 case WM_HSCROLL:
880 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
881 break;
882
883 case WM_KEYDOWN:
884 result = EDIT_WM_KeyDown(es, (INT)wParam);
885 break;
886
887 case WM_KILLFOCUS:
888 result = EDIT_WM_KillFocus(es);
889 break;
890
891 case WM_LBUTTONDBLCLK:
892 result = EDIT_WM_LButtonDblClk(es);
893 break;
894
895 case WM_LBUTTONDOWN:
896 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
897 break;
898
899 case WM_LBUTTONUP:
900 result = EDIT_WM_LButtonUp(es);
901 break;
902
903 case WM_MBUTTONDOWN:
904 result = EDIT_WM_MButtonDown(es);
905 break;
906
907 case WM_MOUSEACTIVATE:
908 result = MA_ACTIVATE;
909 break;
910
911 case WM_MOUSEMOVE:
912 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
913 break;
914
915 case WM_PAINT:
916 EDIT_WM_Paint(es, wParam);
917 break;
918
919 case WM_PASTE:
920 EDIT_WM_Paste(es);
921 break;
922
923 case WM_SETFOCUS:
924 EDIT_WM_SetFocus(es);
925 break;
926
927 case WM_SETFONT:
928 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
929 break;
930
931 case WM_SETREDRAW:
932 /* FIXME: actually set an internal flag and behave accordingly */
933 break;
934
935 case WM_SETTEXT:
936 EDIT_WM_SetText(es, lParam, unicode);
937 result = TRUE;
938 break;
939
940 case WM_SIZE:
941 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
942 break;
943
944 case WM_STYLECHANGED:
945 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
946 break;
947
948 case WM_STYLECHANGING:
949 result = 0; /* See EDIT_WM_StyleChanged */
950 break;
951
952 case WM_SYSKEYDOWN:
953 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
954 break;
955
956 case WM_TIMER:
957 EDIT_WM_Timer(es);
958 break;
959
960 case WM_VSCROLL:
961 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
962 break;
963
964 case WM_MOUSEWHEEL:
965 {
966 int gcWheelDelta = 0;
967 UINT pulScrollLines = 3;
968 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
969
970 if (wParam & (MK_SHIFT | MK_CONTROL)) {
971 result = DefWindowProcW(hwnd, msg, wParam, lParam);
972 break;
973 }
974 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
975 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
976 {
977 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
978 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
979 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
980 }
981 }
982 break;
983 default:
984 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
985 break;
986 }
987
988 if (es) EDIT_UnlockBuffer(es, FALSE);
989
990 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
991
992 return result;
993 }
994
995 /*********************************************************************
996 *
997 * EditWndProcW (USER32.@)
998 */
999 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1000 {
1001 return EditWndProc_common(hWnd, uMsg, wParam, lParam, TRUE);
1002 }
1003
1004 /*********************************************************************
1005 *
1006 * EditWndProc (USER32.@)
1007 */
1008 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1009 {
1010 return EditWndProc_common(hWnd, uMsg, wParam, lParam, FALSE);
1011 }
1012
1013 /*********************************************************************
1014 *
1015 * EDIT_BuildLineDefs_ML
1016 *
1017 * Build linked list of text lines.
1018 * Lines can end with '\0' (last line), a character (if it is wrapped),
1019 * a soft return '\r\r\n' or a hard return '\r\n'
1020 *
1021 */
1022 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1023 {
1024 HDC dc;
1025 HFONT old_font = 0;
1026 LPWSTR current_position, cp;
1027 INT fw;
1028 LINEDEF *current_line;
1029 LINEDEF *previous_line;
1030 LINEDEF *start_line;
1031 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1032 INT line_count = es->line_count;
1033 INT orig_net_length;
1034 RECT rc;
1035
1036 if (istart == iend && delta == 0)
1037 return;
1038
1039 dc = GetDC(es->hwndSelf);
1040 if (es->font)
1041 old_font = SelectObject(dc, es->font);
1042
1043 previous_line = NULL;
1044 current_line = es->first_line_def;
1045
1046 /* Find starting line. istart must lie inside an existing line or
1047 * at the end of buffer */
1048 do {
1049 if (istart < current_line->index + current_line->length ||
1050 current_line->ending == END_0)
1051 break;
1052
1053 previous_line = current_line;
1054 current_line = current_line->next;
1055 line_index++;
1056 } while (current_line);
1057
1058 if (!current_line) /* Error occurred start is not inside previous buffer */
1059 {
1060 FIXME(" modification occurred outside buffer\n");
1061 ReleaseDC(es->hwndSelf, dc);
1062 return;
1063 }
1064
1065 /* Remember start of modifications in order to calculate update region */
1066 nstart_line = line_index;
1067 nstart_index = current_line->index;
1068
1069 /* We must start to reformat from the previous line since the modifications
1070 * may have caused the line to wrap upwards. */
1071 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1072 {
1073 line_index--;
1074 current_line = previous_line;
1075 }
1076 start_line = current_line;
1077
1078 fw = es->format_rect.right - es->format_rect.left;
1079 current_position = es->text + current_line->index;
1080 do {
1081 if (current_line != start_line)
1082 {
1083 if (!current_line || current_line->index + delta > current_position - es->text)
1084 {
1085 /* The buffer has been expanded, create a new line and
1086 insert it into the link list */
1087 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1088 new_line->next = previous_line->next;
1089 previous_line->next = new_line;
1090 current_line = new_line;
1091 es->line_count++;
1092 }
1093 else if (current_line->index + delta < current_position - es->text)
1094 {
1095 /* The previous line merged with this line so we delete this extra entry */
1096 previous_line->next = current_line->next;
1097 HeapFree(GetProcessHeap(), 0, current_line);
1098 current_line = previous_line->next;
1099 es->line_count--;
1100 continue;
1101 }
1102 else /* current_line->index + delta == current_position */
1103 {
1104 if (current_position - es->text > iend)
1105 break; /* We reached end of line modifications */
1106 /* else recalulate this line */
1107 }
1108 }
1109
1110 current_line->index = current_position - es->text;
1111 orig_net_length = current_line->net_length;
1112
1113 /* Find end of line */
1114 cp = current_position;
1115 while (*cp) {
1116 if (*cp == '\n') break;
1117 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1118 break;
1119 cp++;
1120 }
1121
1122 /* Mark type of line termination */
1123 if (!(*cp)) {
1124 current_line->ending = END_0;
1125 current_line->net_length = strlenW(current_position);
1126 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1127 current_line->ending = END_SOFT;
1128 current_line->net_length = cp - current_position - 1;
1129 } else if (*cp == '\n') {
1130 current_line->ending = END_RICH;
1131 current_line->net_length = cp - current_position;
1132 } else {
1133 current_line->ending = END_HARD;
1134 current_line->net_length = cp - current_position;
1135 }
1136
1137 /* Calculate line width */
1138 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1139 current_position, current_line->net_length,
1140 es->tabs_count, es->tabs));
1141
1142 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1143 if (!(es->style & ES_AUTOHSCROLL)) {
1144 if (current_line->width > fw) {
1145 INT next = 0;
1146 INT prev;
1147 do {
1148 prev = next;
1149 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1150 prev + 1, current_line->net_length, WB_RIGHT);
1151 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1152 current_position, next, es->tabs_count, es->tabs));
1153 } while (current_line->width <= fw);
1154 if (!prev) { /* Didn't find a line break so force a break */
1155 next = 0;
1156 do {
1157 prev = next;
1158 next++;
1159 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1160 current_position, next, es->tabs_count, es->tabs));
1161 } while (current_line->width <= fw);
1162 if (!prev)
1163 prev = 1;
1164 }
1165
1166 /* If the first line we are calculating, wrapped before istart, we must
1167 * adjust istart in order for this to be reflected in the update region. */
1168 if (current_line->index == nstart_index && istart > current_line->index + prev)
1169 istart = current_line->index + prev;
1170 /* else if we are updating the previous line before the first line we
1171 * are re-calculating and it expanded */
1172 else if (current_line == start_line &&
1173 current_line->index != nstart_index && orig_net_length < prev)
1174 {
1175 /* Line expanded due to an upwards line wrap so we must partially include
1176 * previous line in update region */
1177 nstart_line = line_index;
1178 nstart_index = current_line->index;
1179 istart = current_line->index + orig_net_length;
1180 }
1181
1182 current_line->net_length = prev;
1183 current_line->ending = END_WRAP;
1184 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1185 current_line->net_length, es->tabs_count, es->tabs));
1186 }
1187 else if (orig_net_length < current_line->net_length &&
1188 current_line == start_line &&
1189 current_line->index != nstart_index) {
1190 /* The previous line expanded but it's still not as wide as the client rect */
1191 /* The expansion is due to an upwards line wrap so we must partially include
1192 it in the update region */
1193 nstart_line = line_index;
1194 nstart_index = current_line->index;
1195 istart = current_line->index + orig_net_length;
1196 }
1197 }
1198
1199
1200 /* Adjust length to include line termination */
1201 switch (current_line->ending) {
1202 case END_SOFT:
1203 current_line->length = current_line->net_length + 3;
1204 break;
1205 case END_RICH:
1206 current_line->length = current_line->net_length + 1;
1207 break;
1208 case END_HARD:
1209 current_line->length = current_line->net_length + 2;
1210 break;
1211 case END_WRAP:
1212 case END_0:
1213 current_line->length = current_line->net_length;
1214 break;
1215 }
1216 es->text_width = max(es->text_width, current_line->width);
1217 current_position += current_line->length;
1218 previous_line = current_line;
1219 current_line = current_line->next;
1220 line_index++;
1221 } while (previous_line->ending != END_0);
1222
1223 /* Finish adjusting line indexes by delta or remove hanging lines */
1224 if (previous_line->ending == END_0)
1225 {
1226 LINEDEF *pnext = NULL;
1227
1228 previous_line->next = NULL;
1229 while (current_line)
1230 {
1231 pnext = current_line->next;
1232 HeapFree(GetProcessHeap(), 0, current_line);
1233 current_line = pnext;
1234 es->line_count--;
1235 }
1236 }
1237 else
1238 {
1239 while (current_line)
1240 {
1241 current_line->index += delta;
1242 current_line = current_line->next;
1243 }
1244 }
1245
1246 /* Calculate rest of modification rectangle */
1247 if (hrgn)
1248 {
1249 HRGN tmphrgn;
1250 /*
1251 * We calculate two rectangles. One for the first line which may have
1252 * an indent with respect to the format rect. The other is a format-width
1253 * rectangle that spans the rest of the lines that changed or moved.
1254 */
1255 rc.top = es->format_rect.top + nstart_line * es->line_height -
1256 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1257 rc.bottom = rc.top + es->line_height;
1258 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1259 es->text + nstart_index, istart - nstart_index,
1260 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1261 rc.right = es->format_rect.right;
1262 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1263
1264 rc.top = rc.bottom;
1265 rc.left = es->format_rect.left;
1266 rc.right = es->format_rect.right;
1267 /*
1268 * If lines were added or removed we must re-paint the remainder of the
1269 * lines since the remaining lines were either shifted up or down.
1270 */
1271 if (line_count < es->line_count) /* We added lines */
1272 rc.bottom = es->line_count * es->line_height;
1273 else if (line_count > es->line_count) /* We removed lines */
1274 rc.bottom = line_count * es->line_height;
1275 else
1276 rc.bottom = line_index * es->line_height;
1277 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1278 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1279 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1280 DeleteObject(tmphrgn);
1281 }
1282
1283 if (es->font)
1284 SelectObject(dc, old_font);
1285
1286 ReleaseDC(es->hwndSelf, dc);
1287 }
1288
1289 /*********************************************************************
1290 *
1291 * EDIT_CalcLineWidth_SL
1292 *
1293 */
1294 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
1295 {
1296 es->text_width = (short)LOWORD(EDIT_EM_PosFromChar(es, strlenW(es->text), FALSE));
1297 }
1298
1299 /*********************************************************************
1300 *
1301 * EDIT_CallWordBreakProc
1302 *
1303 * Call appropriate WordBreakProc (internal or external).
1304 *
1305 * Note: The "start" argument should always be an index referring
1306 * to es->text. The actual wordbreak proc might be
1307 * 16 bit, so we can't always pass any 32 bit LPSTR.
1308 * Hence we assume that es->text is the buffer that holds
1309 * the string under examination (we can decide this for ourselves).
1310 *
1311 */
1312 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1313 {
1314 INT ret, iWndsLocks;
1315
1316 /* To avoid any deadlocks, all the locks on the window structures
1317 must be suspended before the control is passed to the application */
1318 iWndsLocks = WIN_SuspendWndsLock();
1319
1320 if (es->word_break_proc16) {
1321 HGLOBAL16 hglob16;
1322 SEGPTR segptr;
1323 INT countA;
1324 WORD args[5];
1325 DWORD result;
1326
1327 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1328 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1329 segptr = K32WOWGlobalLock16(hglob16);
1330 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1331 args[4] = SELECTOROF(segptr);
1332 args[3] = OFFSETOF(segptr);
1333 args[2] = index;
1334 args[1] = countA;
1335 args[0] = action;
1336 WOWCallback16Ex((DWORD)es->word_break_proc16, WCB16_PASCAL, sizeof(args), args, &result);
1337 ret = LOWORD(result);
1338 GlobalUnlock16(hglob16);
1339 GlobalFree16(hglob16);
1340 }
1341 else if (es->word_break_proc)
1342 {
1343 if(es->is_unicode)
1344 {
1345 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1346
1347 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1348 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1349 ret = wbpW(es->text + start, index, count, action);
1350 }
1351 else
1352 {
1353 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1354 INT countA;
1355 CHAR *textA;
1356
1357 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1358 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1359 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1360 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1361 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1362 ret = wbpA(textA, index, countA, action);
1363 HeapFree(GetProcessHeap(), 0, textA);
1364 }
1365 }
1366 else
1367 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1368
1369 WIN_RestoreWndsLock(iWndsLocks);
1370 return ret;
1371 }
1372
1373
1374 /*********************************************************************
1375 *
1376 * EDIT_CharFromPos
1377 *
1378 * Beware: This is not the function called on EM_CHARFROMPOS
1379 * The position _can_ be outside the formatting / client
1380 * rectangle
1381 * The return value is only the character index
1382 *
1383 */
1384 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1385 {
1386 INT index;
1387 HDC dc;
1388 HFONT old_font = 0;
1389
1390 if (es->style & ES_MULTILINE) {
1391 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1392 INT line_index = 0;
1393 LINEDEF *line_def = es->first_line_def;
1394 INT low, high;
1395 while ((line > 0) && line_def->next) {
1396 line_index += line_def->length;
1397 line_def = line_def->next;
1398 line--;
1399 }
1400 x += es->x_offset - es->format_rect.left;
1401 if (x >= line_def->width) {
1402 if (after_wrap)
1403 *after_wrap = (line_def->ending == END_WRAP);
1404 return line_index + line_def->net_length;
1405 }
1406 if (x <= 0) {
1407 if (after_wrap)
1408 *after_wrap = FALSE;
1409 return line_index;
1410 }
1411 dc = GetDC(es->hwndSelf);
1412 if (es->font)
1413 old_font = SelectObject(dc, es->font);
1414 low = line_index + 1;
1415 high = line_index + line_def->net_length + 1;
1416 while (low < high - 1)
1417 {
1418 INT mid = (low + high) / 2;
1419 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1420 else low = mid;
1421 }
1422 index = low;
1423
1424 if (after_wrap)
1425 *after_wrap = ((index == line_index + line_def->net_length) &&
1426 (line_def->ending == END_WRAP));
1427 } else {
1428 LPWSTR text;
1429 SIZE size;
1430 if (after_wrap)
1431 *after_wrap = FALSE;
1432 x -= es->format_rect.left;
1433 if (!x)
1434 return es->x_offset;
1435 text = EDIT_GetPasswordPointer_SL(es);
1436 dc = GetDC(es->hwndSelf);
1437 if (es->font)
1438 old_font = SelectObject(dc, es->font);
1439 if (x < 0)
1440 {
1441 INT low = 0;
1442 INT high = es->x_offset;
1443 while (low < high - 1)
1444 {
1445 INT mid = (low + high) / 2;
1446 GetTextExtentPoint32W( dc, text + mid,
1447 es->x_offset - mid, &size );
1448 if (size.cx > -x) low = mid;
1449 else high = mid;
1450 }
1451 index = low;
1452 }
1453 else
1454 {
1455 INT low = es->x_offset;
1456 INT high = strlenW(es->text) + 1;
1457 while (low < high - 1)
1458 {
1459 INT mid = (low + high) / 2;
1460 GetTextExtentPoint32W( dc, text + es->x_offset,
1461 mid - es->x_offset, &size );
1462 if (size.cx > x) high = mid;
1463 else low = mid;
1464 }
1465 index = low;
1466 }
1467 if (es->style & ES_PASSWORD)
1468 HeapFree(GetProcessHeap(), 0, text);
1469 }
1470 if (es->font)
1471 SelectObject(dc, old_font);
1472 ReleaseDC(es->hwndSelf, dc);
1473 return index;
1474 }
1475
1476
1477 /*********************************************************************
1478 *
1479 * EDIT_ConfinePoint
1480 *
1481 * adjusts the point to be within the formatting rectangle
1482 * (so CharFromPos returns the nearest _visible_ character)
1483 *
1484 */
1485 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1486 {
1487 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1488 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1489 }
1490
1491
1492 /*********************************************************************
1493 *
1494 * EDIT_GetLineRect
1495 *
1496 * Calculates the bounding rectangle for a line from a starting
1497 * column to an ending column.
1498 *
1499 */
1500 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1501 {
1502 INT line_index = EDIT_EM_LineIndex(es, line);
1503
1504 if (es->style & ES_MULTILINE)
1505 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1506 else
1507 rc->top = es->format_rect.top;
1508 rc->bottom = rc->top + es->line_height;
1509 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1510 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1511 }
1512
1513
1514 /*********************************************************************
1515 *
1516 * EDIT_GetPasswordPointer_SL
1517 *
1518 * note: caller should free the (optionally) allocated buffer
1519 *
1520 */
1521 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1522 {
1523 if (es->style & ES_PASSWORD) {
1524 INT len = strlenW(es->text);
1525 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1526 text[len] = '\0';
1527 while(len) text[--len] = es->password_char;
1528 return text;
1529 } else
1530 return es->text;
1531 }
1532
1533
1534 /*********************************************************************
1535 *
1536 * EDIT_LockBuffer
1537 *
1538 * This acts as a LOCAL_Lock(), but it locks only once. This way
1539 * you can call it whenever you like, without unlocking.
1540 *
1541 * Initially the edit control allocates a HLOCAL32 buffer
1542 * (32 bit linear memory handler). However, 16 bit application
1543 * might send a EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1544 * handler). From that moment on we have to keep using this 16 bit memory
1545 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1546 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1547 * conversion.
1548 *
1549 */
1550 static void EDIT_LockBuffer(EDITSTATE *es)
1551 {
1552 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
1553 if (!es->text) {
1554 CHAR *textA = NULL;
1555 UINT countA = 0;
1556 BOOL _16bit = FALSE;
1557
1558 if(es->hloc32W)
1559 {
1560 if(es->hloc32A)
1561 {
1562 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1563 textA = LocalLock(es->hloc32A);
1564 countA = strlen(textA) + 1;
1565 }
1566 else if(es->hloc16)
1567 {
1568 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1569 textA = LOCAL_Lock(hInstance, es->hloc16);
1570 countA = strlen(textA) + 1;
1571 _16bit = TRUE;
1572 }
1573 }
1574 else {
1575 ERR("no buffer ... please report\n");
1576 return;
1577 }
1578
1579 if(textA)
1580 {
1581 HLOCAL hloc32W_new;
1582 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1583 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1584 if(countW_new > es->buffer_size + 1)
1585 {
1586 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1587 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1588 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1589 if(hloc32W_new)
1590 {
1591 es->hloc32W = hloc32W_new;
1592 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1593 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1594 }
1595 else
1596 WARN("FAILED! Will synchronize partially\n");
1597 }
1598 }
1599
1600 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1601 es->text = LocalLock(es->hloc32W);
1602
1603 if(textA)
1604 {
1605 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1606 if(_16bit)
1607 LOCAL_Unlock(hInstance, es->hloc16);
1608 else
1609 LocalUnlock(es->hloc32A);
1610 }
1611 }
1612 es->lock_count++;
1613 }
1614
1615
1616 /*********************************************************************
1617 *
1618 * EDIT_SL_InvalidateText
1619 *
1620 * Called from EDIT_InvalidateText().
1621 * Does the job for single-line controls only.
1622 *
1623 */
1624 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1625 {
1626 RECT line_rect;
1627 RECT rc;
1628
1629 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1630 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1631 EDIT_UpdateText(es, &rc, TRUE);
1632 }
1633
1634
1635 /*********************************************************************
1636 *
1637 * EDIT_ML_InvalidateText
1638 *
1639 * Called from EDIT_InvalidateText().
1640 * Does the job for multi-line controls only.
1641 *
1642 */
1643 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1644 {
1645 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1646 INT sl = EDIT_EM_LineFromChar(es, start);
1647 INT el = EDIT_EM_LineFromChar(es, end);
1648 INT sc;
1649 INT ec;
1650 RECT rc1;
1651 RECT rcWnd;
1652 RECT rcLine;
1653 RECT rcUpdate;
1654 INT l;
1655
1656 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1657 return;
1658
1659 sc = start - EDIT_EM_LineIndex(es, sl);
1660 ec = end - EDIT_EM_LineIndex(es, el);
1661 if (sl < es->y_offset) {
1662 sl = es->y_offset;
1663 sc = 0;
1664 }
1665 if (el > es->y_offset + vlc) {
1666 el = es->y_offset + vlc;
1667 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1668 }
1669 GetClientRect(es->hwndSelf, &rc1);
1670 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1671 if (sl == el) {
1672 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1673 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1674 EDIT_UpdateText(es, &rcUpdate, TRUE);
1675 } else {
1676 EDIT_GetLineRect(es, sl, sc,
1677 EDIT_EM_LineLength(es,
1678 EDIT_EM_LineIndex(es, sl)),
1679 &rcLine);
1680 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1681 EDIT_UpdateText(es, &rcUpdate, TRUE);
1682 for (l = sl + 1 ; l < el ; l++) {
1683 EDIT_GetLineRect(es, l, 0,
1684 EDIT_EM_LineLength(es,
1685 EDIT_EM_LineIndex(es, l)),
1686 &rcLine);
1687 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1688 EDIT_UpdateText(es, &rcUpdate, TRUE);
1689 }
1690 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1691 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1692 EDIT_UpdateText(es, &rcUpdate, TRUE);
1693 }
1694 }
1695
1696
1697 /*********************************************************************
1698 *
1699 * EDIT_InvalidateText
1700 *
1701 * Invalidate the text from offset start upto, but not including,
1702 * offset end. Useful for (re)painting the selection.
1703 * Regions outside the linewidth are not invalidated.
1704 * end == -1 means end == TextLength.
1705 * start and end need not be ordered.
1706 *
1707 */
1708 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1709 {
1710 if (end == start)
1711 return;
1712
1713 if (end == -1)
1714 end = strlenW(es->text);
1715
1716 if (end < start) {
1717 INT tmp = start;
1718 start = end;
1719 end = tmp;
1720 }
1721
1722 if (es->style & ES_MULTILINE)
1723 EDIT_ML_InvalidateText(es, start, end);
1724 else
1725 EDIT_SL_InvalidateText(es, start, end);
1726 }
1727
1728
1729 /*********************************************************************
1730 *
1731 * EDIT_MakeFit
1732 *
1733 * Try to fit size + 1 characters in the buffer.
1734 */
1735 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1736 {
1737 HLOCAL hNew32W;
1738
1739 if (size <= es->buffer_size)
1740 return TRUE;
1741
1742 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1743
1744 /* Force edit to unlock it's buffer. es->text now NULL */
1745 EDIT_UnlockBuffer(es, TRUE);
1746
1747 if (es->hloc32W) {
1748 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1749 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1750 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1751 es->hloc32W = hNew32W;
1752 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1753 }
1754 }
1755
1756 EDIT_LockBuffer(es);
1757
1758 if (es->buffer_size < size) {
1759 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1760 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1761 return FALSE;
1762 } else {
1763 TRACE("We now have %d+1\n", es->buffer_size);
1764 return TRUE;
1765 }
1766 }
1767
1768
1769 /*********************************************************************
1770 *
1771 * EDIT_MakeUndoFit
1772 *
1773 * Try to fit size + 1 bytes in the undo buffer.
1774 *
1775 */
1776 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1777 {
1778 UINT alloc_size;
1779
1780 if (size <= es->undo_buffer_size)
1781 return TRUE;
1782
1783 TRACE("trying to ReAlloc to %d+1\n", size);
1784
1785 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1786 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1787 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1788 return TRUE;
1789 }
1790 else
1791 {
1792 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1793 return FALSE;
1794 }
1795 }
1796
1797
1798 /*********************************************************************
1799 *
1800 * EDIT_MoveBackward
1801 *
1802 */
1803 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1804 {
1805 INT e = es->selection_end;
1806
1807 if (e) {
1808 e--;
1809 if ((es->style & ES_MULTILINE) && e &&
1810 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1811 e--;
1812 if (e && (es->text[e - 1] == '\r'))
1813 e--;
1814 }
1815 }
1816 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1817 EDIT_EM_ScrollCaret(es);
1818 }
1819
1820
1821 /*********************************************************************
1822 *
1823 * EDIT_MoveDown_ML
1824 *
1825 * Only for multi line controls
1826 * Move the caret one line down, on a column with the nearest
1827 * x coordinate on the screen (might be a different column).
1828 *
1829 */
1830 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1831 {
1832 INT s = es->selection_start;
1833 INT e = es->selection_end;
1834 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1835 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1836 INT x = (short)LOWORD(pos);
1837 INT y = (short)HIWORD(pos);
1838
1839 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1840 if (!extend)
1841 s = e;
1842 EDIT_EM_SetSel(es, s, e, after_wrap);
1843 EDIT_EM_ScrollCaret(es);
1844 }
1845
1846
1847 /*********************************************************************
1848 *
1849 * EDIT_MoveEnd
1850 *
1851 */
1852 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend)
1853 {
1854 BOOL after_wrap = FALSE;
1855 INT e;
1856
1857 /* Pass a high value in x to make sure of receiving the end of the line */
1858 if (es->style & ES_MULTILINE)
1859 e = EDIT_CharFromPos(es, 0x3fffffff,
1860 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1861 else
1862 e = strlenW(es->text);
1863 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1864 EDIT_EM_ScrollCaret(es);
1865 }
1866
1867
1868 /*********************************************************************
1869 *
1870 * EDIT_MoveForward
1871 *
1872 */
1873 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1874 {
1875 INT e = es->selection_end;
1876
1877 if (es->text[e]) {
1878 e++;
1879 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1880 if (es->text[e] == '\n')
1881 e++;
1882 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1883 e += 2;
1884 }
1885 }
1886 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1887 EDIT_EM_ScrollCaret(es);
1888 }
1889
1890
1891 /*********************************************************************
1892 *
1893 * EDIT_MoveHome
1894 *
1895 * Home key: move to beginning of line.
1896 *
1897 */
1898 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend)
1899 {
1900 INT e;
1901
1902 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1903 if (es->style & ES_MULTILINE)
1904 e = EDIT_CharFromPos(es, -es->x_offset,
1905 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1906 else
1907 e = 0;
1908 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1909 EDIT_EM_ScrollCaret(es);
1910 }
1911
1912
1913 /*********************************************************************
1914 *
1915 * EDIT_MovePageDown_ML
1916 *
1917 * Only for multi line controls
1918 * Move the caret one page down, on a column with the nearest
1919 * x coordinate on the screen (might be a different column).
1920 *
1921 */
1922 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1923 {
1924 INT s = es->selection_start;
1925 INT e = es->selection_end;
1926 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1927 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1928 INT x = (short)LOWORD(pos);
1929 INT y = (short)HIWORD(pos);
1930
1931 e = EDIT_CharFromPos(es, x,
1932 y + (es->format_rect.bottom - es->format_rect.top),
1933 &after_wrap);
1934 if (!extend)
1935 s = e;
1936 EDIT_EM_SetSel(es, s, e, after_wrap);
1937 EDIT_EM_ScrollCaret(es);
1938 }
1939
1940
1941 /*********************************************************************
1942 *
1943 * EDIT_MovePageUp_ML
1944 *
1945 * Only for multi line controls
1946 * Move the caret one page up, on a column with the nearest
1947 * x coordinate on the screen (might be a different column).
1948 *
1949 */
1950 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1951 {
1952 INT s = es->selection_start;
1953 INT e = es->selection_end;
1954 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1955 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1956 INT x = (short)LOWORD(pos);
1957 INT y = (short)HIWORD(pos);
1958
1959 e = EDIT_CharFromPos(es, x,
1960 y - (es->format_rect.bottom - es->format_rect.top),
1961 &after_wrap);
1962 if (!extend)
1963 s = e;
1964 EDIT_EM_SetSel(es, s, e, after_wrap);
1965 EDIT_EM_ScrollCaret(es);
1966 }
1967
1968
1969 /*********************************************************************
1970 *
1971 * EDIT_MoveUp_ML
1972 *
1973 * Only for multi line controls
1974 * Move the caret one line up, on a column with the nearest
1975 * x coordinate on the screen (might be a different column).
1976 *
1977 */
1978 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1979 {
1980 INT s = es->selection_start;
1981 INT e = es->selection_end;
1982 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1983 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1984 INT x = (short)LOWORD(pos);
1985 INT y = (short)HIWORD(pos);
1986
1987 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1988 if (!extend)
1989 s = e;
1990 EDIT_EM_SetSel(es, s, e, after_wrap);
1991 EDIT_EM_ScrollCaret(es);
1992 }
1993
1994
1995 /*********************************************************************
1996 *
1997 * EDIT_MoveWordBackward
1998 *
1999 */
2000 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
2001 {
2002 INT s = es->selection_start;
2003 INT e = es->selection_end;
2004 INT l;
2005 INT ll;
2006 INT li;
2007
2008 l = EDIT_EM_LineFromChar(es, e);
2009 ll = EDIT_EM_LineLength(es, e);
2010 li = EDIT_EM_LineIndex(es, l);
2011 if (e - li == 0) {
2012 if (l) {
2013 li = EDIT_EM_LineIndex(es, l - 1);
2014 e = li + EDIT_EM_LineLength(es, li);
2015 }
2016 } else {
2017 e = li + (INT)EDIT_CallWordBreakProc(es,
2018 li, e - li, ll, WB_LEFT);
2019 }
2020 if (!extend)
2021 s = e;
2022 EDIT_EM_SetSel(es, s, e, FALSE);
2023 EDIT_EM_ScrollCaret(es);
2024 }
2025
2026
2027 /*********************************************************************
2028 *
2029 * EDIT_MoveWordForward
2030 *
2031 */
2032 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
2033 {
2034 INT s = es->selection_start;
2035 INT e = es->selection_end;
2036 INT l;
2037 INT ll;
2038 INT li;
2039
2040 l = EDIT_EM_LineFromChar(es, e);
2041 ll = EDIT_EM_LineLength(es, e);
2042 li = EDIT_EM_LineIndex(es, l);
2043 if (e - li == ll) {
2044 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2045 e = EDIT_EM_LineIndex(es, l + 1);
2046 } else {
2047 e = li + EDIT_CallWordBreakProc(es,
2048 li, e - li + 1, ll, WB_RIGHT);
2049 }
2050 if (!extend)
2051 s = e;
2052 EDIT_EM_SetSel(es, s, e, FALSE);
2053 EDIT_EM_ScrollCaret(es);
2054 }
2055
2056
2057 /*********************************************************************
2058 *
2059 * EDIT_PaintLine
2060 *
2061 */
2062 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2063 {
2064 INT s = es->selection_start;
2065 INT e = es->selection_end;
2066 INT li;
2067 INT ll;
2068 INT x;
2069 INT y;
2070 LRESULT pos;
2071
2072 if (es->style & ES_MULTILINE) {
2073 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2074 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2075 return;
2076 } else if (line)
2077 return;
2078
2079 TRACE("line=%d\n", line);
2080
2081 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2082 x = (short)LOWORD(pos);
2083 y = (short)HIWORD(pos);
2084 li = EDIT_EM_LineIndex(es, line);
2085 ll = EDIT_EM_LineLength(es, li);
2086 s = min(es->selection_start, es->selection_end);
2087 e = max(es->selection_start, es->selection_end);
2088 s = min(li + ll, max(li, s));
2089 e = min(li + ll, max(li, e));
2090 if (rev && (s != e) &&
2091 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2092 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2093 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2094 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2095 } else
2096 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2097 }
2098
2099
2100 /*********************************************************************
2101 *
2102 * EDIT_PaintText
2103 *
2104 */
2105 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2106 {
2107 COLORREF BkColor;
2108 COLORREF TextColor;
2109 INT ret;
2110 INT li;
2111 INT BkMode;
2112 SIZE size;
2113
2114 if (!count)
2115 return 0;
2116 BkMode = GetBkMode(dc);
2117 BkColor = GetBkColor(dc);
2118 TextColor = GetTextColor(dc);
2119 if (rev) {
2120 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2121 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2122 SetBkMode( dc, OPAQUE);
2123 }
2124 li = EDIT_EM_LineIndex(es, line);
2125 if (es->style & ES_MULTILINE) {
2126 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2127 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2128 } else {
2129 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2130 TextOutW(dc, x, y, text + li + col, count);
2131 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2132 ret = size.cx;
2133 if (es->style & ES_PASSWORD)
2134 HeapFree(GetProcessHeap(), 0, text);
2135 }
2136 if (rev) {
2137 SetBkColor(dc, BkColor);
2138 SetTextColor(dc, TextColor);
2139 SetBkMode( dc, BkMode);
2140 }
2141 return ret;
2142 }
2143
2144
2145 /*********************************************************************
2146 *
2147 * EDIT_SetCaretPos
2148 *
2149 */
2150 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
2151 BOOL after_wrap)
2152 {
2153 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
2154 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
2155 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
2156 }
2157
2158
2159 /*********************************************************************
2160 *
2161 * EDIT_SetRectNP
2162 *
2163 * note: this is not (exactly) the handler called on EM_SETRECTNP
2164 * it is also used to set the rect of a single line control
2165 *
2166 */
2167 static void EDIT_SetRectNP(EDITSTATE *es, LPRECT rc)
2168 {
2169 CopyRect(&es->format_rect, rc);
2170 if (es->style & WS_BORDER) {
2171 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2172 es->format_rect.left += bw;
2173 es->format_rect.top += bw;
2174 es->format_rect.right -= bw;
2175 es->format_rect.bottom -= bw;
2176 }
2177 es->format_rect.left += es->left_margin;
2178 es->format_rect.right -= es->right_margin;
2179 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2180 if (es->style & ES_MULTILINE)
2181 {
2182 INT fw, vlc, max_x_offset, max_y_offset;
2183
2184 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2185 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2186
2187 /* correct es->x_offset */
2188 fw = es->format_rect.right - es->format_rect.left;
2189 max_x_offset = es->text_width - fw;
2190 if(max_x_offset < 0) max_x_offset = 0;
2191 if(es->x_offset > max_x_offset)
2192 es->x_offset = max_x_offset;
2193
2194 /* correct es->y_offset */
2195 max_y_offset = es->line_count - vlc;
2196 if(max_y_offset < 0) max_y_offset = 0;
2197 if(es->y_offset > max_y_offset)
2198 es->y_offset = max_y_offset;
2199
2200 /* force scroll info update */
2201 EDIT_UpdateScrollInfo(es);
2202 }
2203 else
2204 /* Windows doesn't care to fix text placement for SL controls */
2205 es->format_rect.bottom = es->format_rect.top + es->line_height;
2206
2207 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2208 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
2209 }
2210
2211
2212 /*********************************************************************
2213 *
2214 * EDIT_UnlockBuffer
2215 *
2216 */
2217 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
2218 {
2219 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2220
2221 /* Edit window might be already destroyed */
2222 if(!IsWindow(es->hwndSelf))
2223 {
2224 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
2225 return;
2226 }
2227
2228 if (!es->lock_count) {
2229 ERR("lock_count == 0 ... please report\n");
2230 return;
2231 }
2232 if (!es->text) {
2233 ERR("es->text == 0 ... please report\n");
2234 return;
2235 }
2236
2237 if (force || (es->lock_count == 1)) {
2238 if (es->hloc32W) {
2239 CHAR *textA = NULL;
2240 BOOL _16bit = FALSE;
2241 UINT countA = 0;
2242 UINT countW = strlenW(es->text) + 1;
2243
2244 if(es->hloc32A)
2245 {
2246 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2247 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2248 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2249 countA = LocalSize(es->hloc32A);
2250 if(countA_new > countA)
2251 {
2252 HLOCAL hloc32A_new;
2253 UINT alloc_size = ROUND_TO_GROW(countA_new);
2254 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2255 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2256 if(hloc32A_new)
2257 {
2258 es->hloc32A = hloc32A_new;
2259 countA = LocalSize(hloc32A_new);
2260 TRACE("Real new size %d bytes\n", countA);
2261 }
2262 else
2263 WARN("FAILED! Will synchronize partially\n");
2264 }
2265 textA = LocalLock(es->hloc32A);
2266 }
2267 else if(es->hloc16)
2268 {
2269 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2270 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2271 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2272 countA = LOCAL_Size(hInstance, es->hloc16);
2273 if(countA_new > countA)
2274 {
2275 HLOCAL16 hloc16_new;
2276 UINT alloc_size = ROUND_TO_GROW(countA_new);
2277 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2278 hloc16_new = LOCAL_ReAlloc(hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2279 if(hloc16_new)
2280 {
2281 es->hloc16 = hloc16_new;
2282 countA = LOCAL_Size(hInstance, hloc16_new);
2283 TRACE("Real new size %d bytes\n", countA);
2284 }
2285 else
2286 WARN("FAILED! Will synchronize partially\n");
2287 }
2288 textA = LOCAL_Lock(hInstance, es->hloc16);
2289 _16bit = TRUE;
2290 }
2291
2292 if(textA)
2293 {
2294 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2295 if(_16bit)
2296 LOCAL_Unlock(hInstance, es->hloc16);
2297 else
2298 LocalUnlock(es->hloc32A);
2299 }
2300
2301 LocalUnlock(es->hloc32W);
2302 es->text = NULL;
2303 }
2304 else {
2305 ERR("no buffer ... please report\n");
2306 return;
2307 }
2308 }
2309 es->lock_count--;
2310 }
2311
2312
2313 /*********************************************************************
2314 *
2315 * EDIT_UpdateScrollInfo
2316 *
2317 */
2318 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
2319 {
2320 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2321 {
2322 SCROLLINFO si;
2323 si.cbSize = sizeof(SCROLLINFO);
2324 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2325 si.nMin = 0;
2326 si.nMax = es->line_count - 1;
2327 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2328 si.nPos = es->y_offset;
2329 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2330 si.nMin, si.nMax, si.nPage, si.nPos);
2331 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
2332 }
2333
2334 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2335 {
2336 SCROLLINFO si;
2337 si.cbSize = sizeof(SCROLLINFO);
2338 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2339 si.nMin = 0;
2340 si.nMax = es->text_width - 1;
2341 si.nPage = es->format_rect.right - es->format_rect.left;
2342 si.nPos = es->x_offset;
2343 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2344 si.nMin, si.nMax, si.nPage, si.nPos);
2345 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
2346 }
2347 }
2348
2349 /*********************************************************************
2350 *
2351 * EDIT_WordBreakProc
2352 *
2353 * Find the beginning of words.
2354 * Note: unlike the specs for a WordBreakProc, this function only
2355 * allows to be called without linebreaks between s[0] upto
2356 * s[count - 1]. Remember it is only called
2357 * internally, so we can decide this for ourselves.
2358 *
2359 */
2360 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2361 {
2362 INT ret = 0;
2363
2364 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2365
2366 if(!s) return 0;
2367
2368 switch (action) {
2369 case WB_LEFT:
2370 if (!count)
2371 break;
2372 if (index)
2373 index--;
2374 if (s[index] == ' ') {
2375 while (index && (s[index] == ' '))
2376 index--;
2377 if (index) {
2378 while (index && (s[index] != ' '))
2379 index--;
2380 if (s[index] == ' ')
2381 index++;
2382 }
2383 } else {
2384 while (index && (s[index] != ' '))
2385 index--;
2386 if (s[index] == ' ')
2387 index++;
2388 }
2389 ret = index;
2390 break;
2391 case WB_RIGHT:
2392 if (!count)
2393 break;
2394 if (index)
2395 index--;
2396 if (s[index] == ' ')
2397 while ((index < count) && (s[index] == ' ')) index++;
2398 else {
2399 while (s[index] && (s[index] != ' ') && (index < count))
2400 index++;
2401 while ((s[index] == ' ') && (index < count)) index++;
2402 }
2403 ret = index;
2404 break;
2405 case WB_ISDELIMITER:
2406 ret = (s[index] == ' ');
2407 break;
2408 default:
2409 ERR("unknown action code, please report !\n");
2410 break;
2411 }
2412 return ret;
2413 }
2414
2415
2416 /*********************************************************************
2417 *
2418 * EM_CHARFROMPOS
2419 *
2420 * returns line number (not index) in high-order word of result.
2421 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2422 * to Richedit, not to the edit control. Original documentation is valid.
2423 * FIXME: do the specs mean to return -1 if outside client area or
2424 * if outside formatting rectangle ???
2425 *
2426 */
2427 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2428 {
2429 POINT pt;
2430 RECT rc;
2431 INT index;
2432
2433 pt.x = x;
2434 pt.y = y;
2435 GetClientRect(es->hwndSelf, &rc);
2436 if (!PtInRect(&rc, pt))
2437 return -1;
2438
2439 index = EDIT_CharFromPos(es, x, y, NULL);
2440 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2441 }
2442
2443
2444 /*********************************************************************
2445 *
2446 * EM_FMTLINES
2447 *
2448 * Enable or disable soft breaks.
2449 *
2450 * This means: insert or remove the soft linebreak character (\r\r\n).
2451 * Take care to check if the text still fits the buffer after insertion.
2452 * If not, notify with EN_ERRSPACE.
2453 *
2454 */
2455 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2456 {
2457 es->flags &= ~EF_USE_SOFTBRK;
2458 if (add_eol) {
2459 es->flags |= EF_USE_SOFTBRK;
2460 FIXME("soft break enabled, not implemented\n");
2461 }
2462 return add_eol;
2463 }
2464
2465
2466 /*********************************************************************
2467 *
2468 * EM_GETHANDLE
2469 *
2470 * Hopefully this won't fire back at us.
2471 * We always start with a fixed buffer in the local heap.
2472 * Despite of the documentation says that the local heap is used
2473 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2474 * buffer on the local heap.
2475 *
2476 */
2477 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2478 {
2479 HLOCAL hLocal;
2480
2481 if (!(es->style & ES_MULTILINE))
2482 return 0;
2483
2484 if(es->is_unicode)
2485 hLocal = es->hloc32W;
2486 else
2487 {
2488 if(!es->hloc32A)
2489 {
2490 CHAR *textA;
2491 UINT countA, alloc_size;
2492 TRACE("Allocating 32-bit ANSI alias buffer\n");
2493 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2494 alloc_size = ROUND_TO_GROW(countA);
2495 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2496 {
2497 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2498 return 0;
2499 }
2500 textA = LocalLock(es->hloc32A);
2501 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2502 LocalUnlock(es->hloc32A);
2503 }
2504 hLocal = es->hloc32A;
2505 }
2506
2507 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2508 return hLocal;
2509 }
2510
2511
2512 /*********************************************************************
2513 *
2514 * EM_GETHANDLE16
2515 *
2516 * Hopefully this won't fire back at us.
2517 * We always start with a buffer in 32 bit linear memory.
2518 * However, with this message a 16 bit application requests
2519 * a handle of 16 bit local heap memory, where it expects to find
2520 * the text.
2521 * It's a pitty that from this moment on we have to use this
2522 * local heap, because applications may rely on the handle
2523 * in the future.
2524 *
2525 * In this function we'll try to switch to local heap.
2526 */
2527 static HLOCAL16 EDIT_EM_GetHandle16(EDITSTATE *es)
2528 {
2529 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
2530 CHAR *textA;
2531 UINT countA, alloc_size;
2532
2533 if (!(es->style & ES_MULTILINE))
2534 return 0;
2535
2536 if (es->hloc16)
2537 return es->hloc16;
2538
2539 if (!LOCAL_HeapSize(hInstance)) {
2540 if (!LocalInit16(hInstance, 0,
2541 GlobalSize16(hInstance))) {
2542 ERR("could not initialize local heap\n");
2543 return 0;
2544 }
2545 TRACE("local heap initialized\n");
2546 }
2547
2548 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2549 alloc_size = ROUND_TO_GROW(countA);
2550
2551 TRACE("Allocating 16-bit ANSI alias buffer\n");
2552 if (!(es->hloc16 = LOCAL_Alloc(hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2553 ERR("could not allocate new 16 bit buffer\n");
2554 return 0;
2555 }
2556
2557 if (!(textA = (LPSTR)LOCAL_Lock(hInstance, es->hloc16))) {
2558 ERR("could not lock new 16 bit buffer\n");
2559 LOCAL_Free(hInstance, es->hloc16);
2560 es->hloc16 = 0;
2561 return 0;
2562 }
2563
2564 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2565 LOCAL_Unlock(hInstance, es->hloc16);
2566
2567 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(hInstance, es->hloc16));
2568 return es->hloc16;
2569 }
2570
2571
2572 /*********************************************************************
2573 *
2574 * EM_GETLINE
2575 *
2576 */
2577 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2578 {
2579 LPWSTR src;
2580 INT line_len, dst_len;
2581 INT i;
2582
2583 if (es->style & ES_MULTILINE) {
2584 if (line >= es->line_count)
2585 return 0;
2586 } else
2587 line = 0;
2588 i = EDIT_EM_LineIndex(es, line);
2589 src = es->text + i;
2590 line_len = EDIT_EM_LineLength(es, i);
2591 dst_len = *(WORD *)lParam;
2592 if(unicode)
2593 {
2594 LPWSTR dst = (LPWSTR)lParam;
2595 if(dst_len <= line_len)
2596 {
2597 memcpy(dst, src, dst_len * sizeof(WCHAR));
2598 return dst_len;
2599 }
2600 else /* Append 0 if enough space */
2601 {
2602 memcpy(dst, src, line_len * sizeof(WCHAR));
2603 dst[line_len] = 0;
2604 return line_len;
2605 }
2606 }
2607 else
2608 {
2609 LPSTR dst = (LPSTR)lParam;
2610 INT ret;
2611 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2612 if(!ret) /* Insufficient buffer size */
2613 return dst_len;
2614 if(ret < dst_len) /* Append 0 if enough space */
2615 dst[ret] = 0;
2616 return ret;
2617 }
2618 }
2619
2620
2621 /*********************************************************************
2622 *
2623 * EM_GETSEL
2624 *
2625 */
2626 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, PUINT start, PUINT end)
2627 {
2628 UINT s = es->selection_start;
2629 UINT e = es->selection_end;
2630
2631 ORDER_UINT(s, e);
2632 if (start)
2633 *start = s;
2634 if (end)
2635 *end = e;
2636 return MAKELONG(s, e);
2637 }
2638
2639
2640 /*********************************************************************
2641 *
2642 * EM_GETTHUMB
2643 *
2644 * FIXME: is this right ? (or should it be only VSCROLL)
2645 * (and maybe only for edit controls that really have their
2646 * own scrollbars) (and maybe only for multiline controls ?)
2647 * All in all: very poorly documented
2648 *
2649 */
2650 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
2651 {
2652 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB16, 0),
2653 EDIT_WM_HScroll(es, EM_GETTHUMB16, 0));
2654 }
2655
2656
2657 /*********************************************************************
2658 *
2659 * EM_LINEFROMCHAR
2660 *
2661 */
2662 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2663 {
2664 INT line;
2665 LINEDEF *line_def;
2666
2667 if (!(es->style & ES_MULTILINE))
2668 return 0;
2669 if (index > (INT)strlenW(es->text))
2670 return es->line_count - 1;
2671 if (index == -1)
2672 index = min(es->selection_start, es->selection_end);
2673
2674 line = 0;
2675 line_def = es->first_line_def;
2676 index -= line_def->length;
2677 while ((index >= 0) && line_def->next) {
2678 line++;
2679 line_def = line_def->next;
2680 index -= line_def->length;
2681 }
2682 return line;
2683 }
2684
2685
2686 /*********************************************************************
2687 *
2688 * EM_LINEINDEX
2689 *
2690 */
2691 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2692 {
2693 INT line_index;
2694 LINEDEF *line_def;
2695
2696 if (!(es->style & ES_MULTILINE))
2697 return 0;
2698 if (line >= es->line_count)
2699 return -1;
2700
2701 line_index = 0;
2702 line_def = es->first_line_def;
2703 if (line == -1) {
2704 INT index = es->selection_end - line_def->length;
2705 while ((index >= 0) && line_def->next) {
2706 line_index += line_def->length;
2707 line_def = line_def->next;
2708 index -= line_def->length;
2709 }
2710 } else {
2711 while (line > 0) {
2712 line_index += line_def->length;
2713 line_def = line_def->next;
2714 line--;
2715 }
2716 }
2717 return line_index;
2718 }
2719
2720
2721 /*********************************************************************
2722 *
2723 * EM_LINELENGTH
2724 *
2725 */
2726 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2727 {
2728 LINEDEF *line_def;
2729
2730 if (!(es->style & ES_MULTILINE))
2731 return strlenW(es->text);
2732
2733 if (index == -1) {
2734 /* get the number of remaining non-selected chars of selected lines */
2735 INT32 l; /* line number */
2736 INT32 li; /* index of first char in line */
2737 INT32 count;
2738 l = EDIT_EM_LineFromChar(es, es->selection_start);
2739 /* # chars before start of selection area */
2740 count = es->selection_start - EDIT_EM_LineIndex(es, l);
2741 l = EDIT_EM_LineFromChar(es, es->selection_end);
2742 /* # chars after end of selection */
2743 li = EDIT_EM_LineIndex(es, l);
2744 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
2745 return count;
2746 }
2747 line_def = es->first_line_def;
2748 index -= line_def->length;
2749 while ((index >= 0) && line_def->next) {
2750 line_def = line_def->next;
2751 index -= line_def->length;
2752 }
2753 return line_def->net_length;
2754 }
2755
2756
2757 /*********************************************************************
2758 *
2759 * EM_LINESCROLL
2760 *
2761 * NOTE: dx is in average character widths, dy - in lines;
2762 *
2763 */
2764 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
2765 {
2766 if (!(es->style & ES_MULTILINE))
2767 return FALSE;
2768
2769 dx *= es->char_width;
2770 return EDIT_EM_LineScroll_internal(es, dx, dy);
2771 }
2772
2773 /*********************************************************************
2774 *
2775 * EDIT_EM_LineScroll_internal
2776 *
2777 * Version of EDIT_EM_LineScroll for internal use.
2778 * It doesn't refuse if ES_MULTILINE is set and assumes that
2779 * dx is in pixels, dy - in lines.
2780 *
2781 */
2782 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
2783 {
2784 INT nyoff;
2785 INT x_offset_in_pixels;
2786
2787 if (es->style & ES_MULTILINE)
2788 {
2789 x_offset_in_pixels = es->x_offset;
2790 }
2791 else
2792 {
2793 dy = 0;
2794 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
2795 }
2796
2797 if (-dx > x_offset_in_pixels)
2798 dx = -x_offset_in_pixels;
2799 if (dx > es->text_width - x_offset_in_pixels)
2800 dx = es->text_width - x_offset_in_pixels;
2801 nyoff = max(0, es->y_offset + dy);
2802 if (nyoff >= es->line_count)
2803 nyoff = es->line_count - 1;
2804 dy = (es->y_offset - nyoff) * es->line_height;
2805 if (dx || dy) {
2806 RECT rc1;
2807 RECT rc;
2808
2809 es->y_offset = nyoff;
2810 if(es->style & ES_MULTILINE)
2811 es->x_offset += dx;
2812 else
2813 es->x_offset += dx / es->char_width;
2814
2815 GetClientRect(es->hwndSelf, &rc1);
2816 IntersectRect(&rc, &rc1, &es->format_rect);
2817 ScrollWindowEx(es->hwndSelf, -dx, dy,
2818 NULL, &rc, NULL, NULL, SW_INVALIDATE);
2819 /* force scroll info update */
2820 EDIT_UpdateScrollInfo(es);
2821 }
2822 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2823 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2824 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2825 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2826 return TRUE;
2827 }
2828
2829
2830 /*********************************************************************
2831 *
2832 * EM_POSFROMCHAR
2833 *
2834 */
2835 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
2836 {
2837 INT len = strlenW(es->text);
2838 INT l;
2839 INT li;
2840 INT x;
2841 INT y = 0;
2842 HDC dc;
2843 HFONT old_font = 0;
2844 SIZE size;
2845
2846 index = min(index, len);
2847 dc = GetDC(es->hwndSelf);
2848 if (es->font)
2849 old_font = SelectObject(dc, es->font);
2850 if (es->style & ES_MULTILINE) {
2851 l = EDIT_EM_LineFromChar(es, index);
2852 y = (l - es->y_offset) * es->line_height;
2853 li = EDIT_EM_LineIndex(es, l);
2854 if (after_wrap && (li == index) && l) {
2855 INT l2 = l - 1;
2856 LINEDEF *line_def = es->first_line_def;
2857 while (l2) {
2858 line_def = line_def->next;
2859 l2--;
2860 }
2861 if (line_def->ending == END_WRAP) {
2862 l--;
2863 y -= es->line_height;
2864 li = EDIT_EM_LineIndex(es, l);
2865 }
2866 }
2867 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2868 es->tabs_count, es->tabs)) - es->x_offset;
2869 } else {
2870 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2871 if (index < es->x_offset) {
2872 GetTextExtentPoint32W(dc, text + index,
2873 es->x_offset - index, &size);
2874 x = -size.cx;
2875 } else {
2876 GetTextExtentPoint32W(dc, text + es->x_offset,
2877 index - es->x_offset, &size);
2878 x = size.cx;
2879 }
2880 y = 0;
2881 if (es->style & ES_PASSWORD)
2882 HeapFree(GetProcessHeap(), 0, text);
2883 }
2884 x += es->format_rect.left;
2885 y += es->format_rect.top;
2886 if (es->font)
2887 SelectObject(dc, old_font);
2888 ReleaseDC(es->hwndSelf, dc);
2889 return MAKELONG((INT16)x, (INT16)y);
2890 }
2891
2892
2893 /*********************************************************************
2894 *
2895 * EM_REPLACESEL
2896 *
2897 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2898 *
2899 */
2900 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2901 {
2902 UINT strl = strlenW(lpsz_replace);
2903 UINT tl = strlenW(es->text);
2904 UINT utl;
2905 UINT s;
2906 UINT e;
2907 UINT i;
2908 UINT size;
2909 LPWSTR p;
2910 HRGN hrgn = 0;
2911
2912 TRACE("%s, can_undo %d, send_update %d\n",
2913 debugstr_w(lpsz_replace), can_undo, send_update);
2914
2915 s = es->selection_start;
2916 e = es->selection_end;
2917
2918 if ((s == e) && !strl)
2919 return;
2920
2921 ORDER_UINT(s, e);
2922
2923 /* Issue the EN_MAXTEXT notification and continue with replacing text
2924 * such that buffer limit is honored. */
2925 size = tl - (e - s) + strl;
2926 if ((honor_limit) && (es->buffer_limit > 0) && (size > es->buffer_limit)) {
2927 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
2928 strl = es->buffer_limit - (tl - (e-s));
2929 }
2930
2931 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2932 return;
2933
2934 if (e != s) {
2935 /* there is something to be deleted */
2936 TRACE("deleting stuff.\n");
2937 if (can_undo) {
2938 utl = strlenW(es->undo_text);
2939 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2940 /* undo-buffer is extended to the right */
2941 EDIT_MakeUndoFit(es, utl + e - s);
2942 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
2943 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2944 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2945 /* undo-buffer is extended to the left */
2946 EDIT_MakeUndoFit(es, utl + e - s);
2947 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2948 p[e - s] = p[0];
2949 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2950 p[i] = (es->text + s)[i];
2951 es->undo_position = s;
2952 } else {
2953 /* new undo-buffer */
2954 EDIT_MakeUndoFit(es, e - s);
2955 strncpyW(es->undo_text, es->text + s, e - s + 1);
2956 es->undo_text[e - s] = 0; /* ensure 0 termination */
2957 es->undo_position = s;
2958 }
2959 /* any deletion makes the old insertion-undo invalid */
2960 es->undo_insert_count = 0;
2961 } else
2962 EDIT_EM_EmptyUndoBuffer(es);
2963
2964 /* now delete */
2965 strcpyW(es->text + s, es->text + e);
2966 }
2967 if (strl) {
2968 /* there is an insertion */
2969 if (can_undo) {
2970 if ((s == es->undo_position) ||
2971 ((es->undo_insert_count) &&
2972 (s == es->undo_position + es->undo_insert_count)))
2973 /*
2974 * insertion is new and at delete position or
2975 * an extension to either left or right
2976 */
2977 es->undo_insert_count += strl;
2978 else {
2979 /* new insertion undo */
2980 es->undo_position = s;
2981 es->undo_insert_count = strl;
2982 /* new insertion makes old delete-buffer invalid */
2983 *es->undo_text = '\0';
2984 }
2985 } else
2986 EDIT_EM_EmptyUndoBuffer(es);
2987
2988 /* now insert */
2989 tl = strlenW(es->text);
2990 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));
2991 for (p = es->text + tl ; p >= es->text + s ; p--)
2992 p[strl] = p[0];
2993 for (i = 0 , p = es->text + s ; i < strl ; i++)
2994 p[i] = lpsz_replace[i];
2995 if(es->style & ES_UPPERCASE)
2996 CharUpperBuffW(p, strl);
2997 else if(es->style & ES_LOWERCASE)
2998 CharLowerBuffW(p, strl);
2999 s += strl;
3000 }
3001 if (es->style & ES_MULTILINE)
3002 {
3003 INT s = min(es->selection_start, es->selection_end);
3004
3005 hrgn = CreateRectRgn(0, 0, 0, 0);
3006 EDIT_BuildLineDefs_ML(es, s, s + strl,
3007 strl - abs(es->selection_end - es->selection_start), hrgn);
3008 }
3009 else
3010 EDIT_CalcLineWidth_SL(es);
3011
3012 EDIT_EM_SetSel(es, s, s, FALSE);
3013 es->flags |= EF_MODIFIED;
3014 if (send_update) es->flags |= EF_UPDATE;
3015 if (hrgn)
3016 {
3017 EDIT_UpdateTextRegion(es, hrgn, TRUE);
3018 DeleteObject(hrgn);
3019 }
3020 else
3021 EDIT_UpdateText(es, NULL, TRUE);
3022
3023 EDIT_EM_ScrollCaret(es);
3024
3025 /* force scroll info update */
3026 EDIT_UpdateScrollInfo(es);
3027
3028
3029 if(es->flags & EF_UPDATE)
3030 {
3031 es->flags &= ~EF_UPDATE;
3032 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3033 }
3034 }
3035
3036
3037 /*********************************************************************
3038 *
3039 * EM_SCROLL
3040 *
3041 */
3042 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
3043 {
3044 INT dy;
3045
3046 if (!(es->style & ES_MULTILINE))
3047 return (LRESULT)FALSE;
3048
3049 dy = 0;
3050
3051 switch (action) {
3052 case SB_LINEUP:
3053 if (es->y_offset)
3054 dy = -1;
3055 break;
3056 case SB_LINEDOWN:
3057 if (es->y_offset < es->line_count - 1)
3058 dy = 1;
3059 break;
3060 case SB_PAGEUP:
3061 if (es->y_offset)
3062 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3063 break;
3064 case SB_PAGEDOWN:
3065 if (es->y_offset < es->line_count - 1)
3066 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3067 break;
3068 default:
3069 return (LRESULT)FALSE;
3070 }
3071 if (dy) {
3072 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3073 /* check if we are going to move too far */
3074 if(es->y_offset + dy > es->line_count - vlc)
3075 dy = es->line_count - vlc - es->y_offset;
3076
3077 /* Notification is done in EDIT_EM_LineScroll */
3078 if(dy)
3079 EDIT_EM_LineScroll(es, 0, dy);
3080 }
3081 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3082 }
3083
3084
3085 /*********************************************************************
3086 *
3087 * EM_SCROLLCARET
3088 *
3089 */
3090 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
3091 {
3092 if (es->style & ES_MULTILINE) {
3093 INT l;
3094 INT li;
3095 INT vlc;
3096 INT ww;
3097 INT cw = es->char_width;
3098 INT x;
3099 INT dy = 0;
3100 INT dx = 0;
3101
3102 l = EDIT_EM_LineFromChar(es, es->selection_end);
3103 li = EDIT_EM_LineIndex(es, l);
3104 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
3105 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3106 if (l >= es->y_offset + vlc)
3107 dy = l - vlc + 1 - es->y_offset;
3108 if (l < es->y_offset)
3109 dy = l - es->y_offset;
3110 ww = es->format_rect.right - es->format_rect.left;
3111 if (x < es->format_rect.left)
3112 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3113 if (x > es->format_rect.right)
3114 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3115 if (dy || dx)
3116 {
3117 /* check if we are going to move too far */
3118 if(es->x_offset + dx + ww > es->text_width)
3119 dx = es->text_width - ww - es->x_offset;
3120 if(dx || dy)
3121 EDIT_EM_LineScroll_internal(es, dx, dy);
3122 }
3123 } else {
3124 INT x;
3125 INT goal;
3126 INT format_width;
3127
3128 if (!(es->style & ES_AUTOHSCROLL))
3129 return;
3130
3131 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3132 format_width = es->format_rect.right - es->format_rect.left;
3133 if (x < es->format_rect.left) {
3134 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3135 do {
3136 es->x_offset--;
3137 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3138 } while ((x < goal) && es->x_offset);
3139 /* FIXME: use ScrollWindow() somehow to improve performance */
3140 EDIT_UpdateText(es, NULL, TRUE);
3141 } else if (x > es->format_rect.right) {
3142 INT x_last;
3143 INT len = strlenW(es->text);
3144 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3145 do {
3146 es->x_offset++;
3147 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
3148 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
3149 } while ((x > goal) && (x_last > es->format_rect.right));
3150 /* FIXME: use ScrollWindow() somehow to improve performance */
3151 EDIT_UpdateText(es, NULL, TRUE);
3152 }
3153 }
3154
3155 if(es->flags & EF_FOCUSED)
3156 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
3157 }
3158
3159
3160 /*********************************************************************
3161 *
3162 * EM_SETHANDLE
3163 *
3164 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3165 *
3166 */
3167 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
3168 {
3169 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3170
3171 if (!(es->style & ES_MULTILINE))
3172 return;
3173
3174 if (!hloc) {
3175 WARN("called with NULL handle\n");
3176 return;
3177 }
3178
3179 EDIT_UnlockBuffer(es, TRUE);
3180
3181 if(es->hloc16)
3182 {
3183 LOCAL_Free(hInstance, es->hloc16);
3184 es->hloc16 = (HLOCAL16)NULL;
3185 }
3186
3187 if(es->is_unicode)
3188 {
3189 if(es->hloc32A)
3190 {
3191 LocalFree(es->hloc32A);
3192 es->hloc32A = NULL;
3193 }
3194 es->hloc32W = hloc;
3195 }
3196 else
3197 {
3198 INT countW, countA;
3199 HLOCAL hloc32W_new;
3200 WCHAR *textW;
3201 CHAR *textA;
3202
3203 countA = LocalSize(hloc);
3204 textA = LocalLock(hloc);
3205 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3206 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3207 {
3208 ERR("Could not allocate new unicode buffer\n");
3209 return;
3210 }
3211 textW = LocalLock(hloc32W_new);
3212 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3213 LocalUnlock(hloc32W_new);
3214 LocalUnlock(hloc);
3215
3216 if(es->hloc32W)
3217 LocalFree(es->hloc32W);
3218
3219 es->hloc32W = hloc32W_new;
3220 es->hloc32A = hloc;
3221 }
3222
3223 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3224
3225 EDIT_LockBuffer(es);
3226
3227 es->x_offset = es->y_offset = 0;
3228 es->selection_start = es->selection_end = 0;
3229 EDIT_EM_EmptyUndoBuffer(es);
3230 es->flags &= ~EF_MODIFIED;
3231 es->flags &= ~EF_UPDATE;
3232 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3233 EDIT_UpdateText(es, NULL, TRUE);
3234 EDIT_EM_ScrollCaret(es);
3235 /* force scroll info update */
3236 EDIT_UpdateScrollInfo(es);
3237 }
3238
3239
3240 /*********************************************************************
3241 *
3242 * EM_SETHANDLE16
3243 *
3244 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3245 *
3246 */
3247 static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc)
3248 {
3249 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3250 INT countW, countA;
3251 HLOCAL hloc32W_new;
3252 WCHAR *textW;
3253 CHAR *textA;
3254
3255 if (!(es->style & ES_MULTILINE))
3256 return;
3257
3258 if (!hloc) {
3259 WARN("called with NULL handle\n");
3260 return;
3261 }
3262
3263 EDIT_UnlockBuffer(es, TRUE);
3264
3265 if(es->hloc32A)
3266 {
3267 LocalFree(es->hloc32A);
3268 es->hloc32A = NULL;
3269 }
3270
3271 countA = LOCAL_Size(hInstance, hloc);
3272 textA = LOCAL_Lock(hInstance, hloc);
3273 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3274 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3275 {
3276 ERR("Could not allocate new unicode buffer\n");
3277 return;
3278 }
3279 textW = LocalLock(hloc32W_new);
3280 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3281 LocalUnlock(hloc32W_new);
3282 LOCAL_Unlock(hInstance, hloc);
3283
3284 if(es->hloc32W)
3285 LocalFree(es->hloc32W);
3286
3287 es->hloc32W = hloc32W_new;
3288 es->hloc16 = hloc;
3289
3290 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3291
3292 EDIT_LockBuffer(es);
3293
3294 es->x_offset = es->y_offset = 0;
3295 es->selection_start = es->selection_end = 0;
3296 EDIT_EM_EmptyUndoBuffer(es);
3297 es->flags &= ~EF_MODIFIED;
3298 es->flags &= ~EF_UPDATE;
3299 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3300 EDIT_UpdateText(es, NULL, TRUE);
3301 EDIT_EM_ScrollCaret(es);
3302 /* force scroll info update */
3303 EDIT_UpdateScrollInfo(es);
3304 }
3305
3306
3307 /*********************************************************************
3308 *
3309 * EM_SETLIMITTEXT
3310 *
3311 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3312 * However, the windows version is not complied to yet in all of edit.c
3313 *
3314 * Additionally as the wrapper for RichEdit controls we need larger buffers
3315 * at present -1 will represent nolimit
3316 */
3317 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3318 {
3319 if (limit == 0xFFFFFFFF)
3320 es->buffer_limit = -1;
3321 else if (es->style & ES_MULTILINE) {
3322 if (limit)
3323 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3324 else
3325 es->buffer_limit = BUFLIMIT_MULTI;
3326 } else {
3327 if (limit)
3328 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3329 else
3330 es->buffer_limit = BUFLIMIT_SINGLE;
3331 }
3332 }
3333
3334
3335 /*********************************************************************
3336 *
3337 * EM_SETMARGINS
3338 *
3339 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3340 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
3341 * margin according to the textmetrics of the current font.
3342 *
3343 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
3344 * of the char's width as the margin, but this is not how Windows handles this.
3345 * For all other fonts Windows sets the margins to zero.
3346 *
3347 */
3348 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3349 INT left, INT right)
3350 {
3351 TEXTMETRICW tm;
3352 INT default_left_margin = 0; /* in pixels */
3353 INT default_right_margin = 0; /* in pixels */
3354
3355 /* Set the default margins depending on the font */
3356 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
3357 HDC dc = GetDC(es->hwndSelf);
3358 HFONT old_font = SelectObject(dc, es->font);
3359 GetTextMetricsW(dc, &tm);
3360 /* The default margins are only non zero for TrueType or Vector fonts */
3361 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
3362 /* This must be calculated more exactly! But how? */
3363 default_left_margin = tm.tmAveCharWidth / 3;
3364 default_right_margin = tm.tmAveCharWidth / 3;
3365 }
3366 SelectObject(dc, old_font);
3367 ReleaseDC(es->hwndSelf, dc);
3368 }
3369
3370 if (action & EC_LEFTMARGIN) {
3371 if (left != EC_USEFONTINFO)
3372 es->left_margin = left;
3373 else
3374 es->left_margin = default_left_margin;
3375 }
3376
3377 if (action & EC_RIGHTMARGIN) {
3378 if (right != EC_USEFONTINFO)
3379 es->right_margin = right;
3380 else
3381 es->right_margin = default_right_margin;
3382 }
3383 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3384 }
3385
3386
3387 /*********************************************************************
3388 *
3389 * EM_SETPASSWORDCHAR
3390 *
3391 */
3392 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
3393 {
3394 LONG style;
3395
3396 if (es->style & ES_MULTILINE)
3397 return;
3398
3399 if (es->password_char == c)
3400 return;
3401
3402 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
3403 es->password_char = c;
3404 if (c) {
3405 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
3406 es->style |= ES_PASSWORD;
3407 } else {
3408 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
3409 es->style &= ~ES_PASSWORD;
3410 }
3411 EDIT_UpdateText(es, NULL, TRUE);
3412 }
3413
3414
3415 /*********************************************************************
3416 *
3417 * EDIT_EM_SetSel
3418 *
3419 * note: unlike the specs say: the order of start and end
3420 * _is_ preserved in Windows. (i.e. start can be > end)
3421 * In other words: this handler is OK
3422 *
3423 */
3424 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3425 {
3426 UINT old_start = es->selection_start;
3427 UINT old_end = es->selection_end;
3428 UINT len = strlenW(es->text);
3429
3430 if (start == (UINT)-1) {
3431 start = es->selection_end;
3432 end = es->selection_end;
3433 } else {
3434 start = min(start, len);
3435 end = min(end, len);
3436 }
3437 es->selection_start = start;
3438 es->selection_end = end;
3439 if (after_wrap)
3440 es->flags |= EF_AFTER_WRAP;
3441 else
3442 es->flags &= ~EF_AFTER_WRAP;
3443 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3444 ORDER_UINT(start, end);
3445 ORDER_UINT(end, old_end);
3446 ORDER_UINT(start, old_start);
3447 ORDER_UINT(old_start, old_end);
3448 if (end != old_start)
3449 {
3450 /*
3451 * One can also do
3452 * ORDER_UINT32(end, old_start);
3453 * EDIT_InvalidateText(es, start, end);
3454 * EDIT_InvalidateText(es, old_start, old_end);
3455 * in place of the following if statement.
3456 */
3457 if (old_start > end )
3458 {
3459 EDIT_InvalidateText(es, start, end);
3460 EDIT_InvalidateText(es, old_start, old_end);
3461 }
3462 else
3463 {
3464 EDIT_InvalidateText(es, start, old_start);
3465 EDIT_InvalidateText(es, end, old_end);
3466 }
3467 }
3468 else EDIT_InvalidateText(es, start, old_end);
3469 }
3470
3471
3472 /*********************************************************************
3473 *
3474 * EM_SETTABSTOPS
3475 *
3476 */
3477 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3478 {
3479 if (!(es->style & ES_MULTILINE))
3480 return FALSE;
3481 if (es->tabs)
3482 HeapFree(GetProcessHeap(), 0, es->tabs);
3483 es->tabs_count = count;
3484 if (!count)
3485 es->tabs = NULL;
3486 else {
3487 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3488 memcpy(es->tabs, tabs, count * sizeof(INT));
3489 }
3490 return TRUE;
3491 }
3492
3493
3494 /*********************************************************************
3495 *
3496 * EM_SETTABSTOPS16
3497 *
3498 */
3499 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3500 {
3501 if (!(es->style & ES_MULTILINE))
3502 return FALSE;
3503 if (es->tabs)
3504 HeapFree(GetProcessHeap(), 0, es->tabs);
3505 es->tabs_count = count;
3506 if (!count)
3507 es->tabs = NULL;
3508 else {
3509 INT i;
3510 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3511 for (i = 0 ; i < count ; i++)
3512 es->tabs[i] = *tabs++;
3513 }
3514 return TRUE;
3515 }
3516
3517
3518 /*********************************************************************
3519 *
3520 * EM_SETWORDBREAKPROC
3521 *
3522 */
3523 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, LPARAM lParam)
3524 {
3525 if (es->word_break_proc == (void *)lParam)
3526 return;
3527
3528 es->word_break_proc = (void *)lParam;
3529 es->word_break_proc16 = NULL;
3530
3531 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3532 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3533 EDIT_UpdateText(es, NULL, TRUE);
3534 }
3535 }
3536
3537
3538 /*********************************************************************
3539 *
3540 * EM_SETWORDBREAKPROC16
3541 *
3542 */
3543 static void EDIT_EM_SetWordBreakProc16(EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3544 {
3545 if (es->word_break_proc16 == wbp)
3546 return;
3547
3548 es->word_break_proc = NULL;
3549 es->word_break_proc16 = wbp;
3550 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3551 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
3552 EDIT_UpdateText(es, NULL, TRUE);
3553 }
3554 }
3555
3556
3557 /*********************************************************************
3558 *
3559 * EM_UNDO / WM_UNDO
3560 *
3561 */
3562 static BOOL EDIT_EM_Undo(EDITSTATE *es)
3563 {
3564 INT ulength;
3565 LPWSTR utext;
3566
3567 /* As per MSDN spec, for a single-line edit control,
3568 the return value is always TRUE */
3569 if( es->style & ES_READONLY )
3570 return !(es->style & ES_MULTILINE);
3571
3572 ulength = strlenW(es->undo_text);
3573
3574 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3575
3576 strcpyW(utext, es->undo_text);
3577
3578 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3579 es->undo_insert_count, debugstr_w(utext));
3580
3581 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3582 EDIT_EM_EmptyUndoBuffer(es);
3583 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
3584 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3585 /* send the notification after the selection start and end are set */
3586 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3587 EDIT_EM_ScrollCaret(es);
3588 HeapFree(GetProcessHeap(), 0, utext);
3589
3590 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3591 es->undo_insert_count, debugstr_w(es->undo_text));
3592 return TRUE;
3593 }
3594
3595
3596 /*********************************************************************
3597 *
3598 * WM_CHAR
3599 *
3600 */
3601 static void EDIT_WM_Char(EDITSTATE *es, WCHAR c)
3602 {
3603 BOOL control;
3604
3605 /* Protect read-only edit control from modification */
3606 if(es->style & ES_READONLY)
3607 return;
3608
3609 control = GetKeyState(VK_CONTROL) & 0x8000;
3610
3611 switch (c) {
3612 case '\r':
3613 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3614 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3615 break;
3616 case '\n':
3617 if (es->style & ES_MULTILINE) {
3618 if (es->style & ES_READONLY) {
3619 EDIT_MoveHome(es, FALSE);
3620 EDIT_MoveDown_ML(es, FALSE);
3621 } else {
3622 static const WCHAR cr_lfW[] = {'\r','\n',0};
3623 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
3624 }
3625 }
3626 break;
3627 case '\t':
3628 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3629 {
3630 static const WCHAR tabW[] = {'\t',0};
3631 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
3632 }
3633 break;
3634 case VK_BACK:
3635 if (!(es->style & ES_READONLY) && !control) {
3636 if (es->selection_start != es->selection_end)
3637 EDIT_WM_Clear(es);
3638 else {
3639 /* delete character left of caret */
3640 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3641 EDIT_MoveBackward(es, TRUE);
3642 EDIT_WM_Clear(es);
3643 }
3644 }
3645 break;
3646 case 0x03: /* ^C */
3647 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3648 break;
3649 case 0x16: /* ^V */
3650 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3651 break;
3652 case 0x18: /* ^X */
3653 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3654 break;
3655
3656 default:
3657 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3658 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3659 break;
3660
3661 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3662 WCHAR str[2];
3663 str[0] = c;
3664 str[1] = '\0';
3665 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3666 }
3667 break;
3668 }
3669 }
3670
3671
3672 /*********************************************************************
3673 *
3674 * WM_COMMAND
3675 *
3676 */
3677 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3678 {
3679 if (code || control)
3680 return;
3681
3682 switch (id) {
3683 case EM_UNDO:
3684 EDIT_EM_Undo(es);
3685 break;
3686 case WM_CUT:
3687 EDIT_WM_Cut(es);
3688 break;
3689 case WM_COPY:
3690 EDIT_WM_Copy(es);
3691 break;
3692 case WM_PASTE:
3693 EDIT_WM_Paste(es);
3694 break;
3695 case WM_CLEAR:
3696 EDIT_WM_Clear(es);
3697 break;
3698 case EM_SETSEL:
3699 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3700 EDIT_EM_ScrollCaret(es);
3701 break;
3702 default:
3703 ERR("unknown menu item, please report\n");
3704 break;
3705 }
3706 }
3707
3708
3709 /*********************************************************************
3710 *
3711 * WM_CONTEXTMENU
3712 *
3713 * Note: the resource files resource/sysres_??.rc cannot define a
3714 * single popup menu. Hence we use a (dummy) menubar
3715 * containing the single popup menu as its first item.
3716 *
3717 * FIXME: the message identifiers have been chosen arbitrarily,
3718 * hence we use MF_BYPOSITION.
3719 * We might as well use the "real" values (anybody knows ?)
3720 * The menu definition is in resources/sysres_??.rc.
3721 * Once these are OK, we better use MF_BYCOMMAND here
3722 * (as we do in EDIT_WM_Command()).
3723 *
3724 */
3725 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3726 {
3727 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3728 HMENU popup = GetSubMenu(menu, 0);
3729 UINT start = es->selection_start;
3730 UINT end = es->selection_end;
3731
3732 ORDER_UINT(start, end);
3733
3734 /* undo */
3735 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3736 /* cut */
3737 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3738 /* copy */
3739 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3740 /* paste */
3741 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3742 /* delete */
3743 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3744 /* select all */
3745 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3746
3747 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3748 DestroyMenu(menu);
3749 }
3750
3751
3752 /*********************************************************************
3753 *
3754 * WM_COPY
3755 *
3756 */
3757 static void EDIT_WM_Copy(EDITSTATE *es)
3758 {
3759 INT s = min(es->selection_start, es->selection_end);
3760 INT e = max(es->selection_start, es->selection_end);
3761 HGLOBAL hdst;
3762 LPWSTR dst;
3763
3764 if (e == s) return;
3765
3766 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3767 dst = GlobalLock(hdst);
3768 strncpyW(dst, es->text + s, e - s);
3769 dst[e - s] = 0; /* ensure 0 termination */
3770 TRACE("%s\n", debugstr_w(dst));
3771 GlobalUnlock(hdst);
3772 OpenClipboard(es->hwndSelf);
3773 EmptyClipboard();
3774 SetClipboardData(CF_UNICODETEXT, hdst);
3775 CloseClipboard();
3776 }
3777
3778
3779 /*********************************************************************
3780 *
3781 * WM_CREATE
3782 *
3783 */
3784 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
3785 {
3786 TRACE("%s\n", debugstr_w(name));
3787 /*
3788 * To initialize some final structure members, we call some helper
3789 * functions. However, since the EDITSTATE is not consistent (i.e.
3790 * not fully initialized), we should be very careful which
3791 * functions can be called, and in what order.
3792 */
3793 EDIT_WM_SetFont(es, 0, FALSE);
3794 EDIT_EM_EmptyUndoBuffer(es);
3795
3796 if (name && *name) {
3797 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, TRUE);
3798 /* if we insert text to the editline, the text scrolls out
3799 * of the window, as the caret is placed after the insert
3800 * pos normally; thus we reset es->selection... to 0 and
3801 * update caret
3802 */
3803 es->selection_start = es->selection_end = 0;
3804 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
3805 * Messages are only to be sent when the USER does something to
3806 * change the contents. So I am removing this EN_CHANGE
3807 *
3808 * EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3809 */
3810 EDIT_EM_ScrollCaret(es);
3811 }
3812 /* force scroll info update */
3813 EDIT_UpdateScrollInfo(es);
3814 /* The rule seems to return 1 here for success */
3815 /* Power Builder masked edit controls will crash */
3816 /* if not. */
3817 /* FIXME: is that in all cases so ? */
3818 return 1;
3819 }
3820
3821
3822 /*********************************************************************
3823 *
3824 * WM_DESTROY
3825 *
3826 */
3827 static LRESULT EDIT_WM_Destroy(EDITSTATE *es)
3828 {
3829 LINEDEF *pc, *pp;
3830
3831 if (es->hloc32W) {
3832 while (LocalUnlock(es->hloc32W)) ;
3833 LocalFree(es->hloc32W);
3834 }
3835 if (es->hloc32A) {
3836 while (LocalUnlock(es->hloc32A)) ;
3837 LocalFree(es->hloc32A);
3838 }
3839 if (es->hloc16) {
3840 HINSTANCE16 hInstance = GetWindowLongPtrW( es->hwndSelf, GWLP_HINSTANCE );
3841 while (LOCAL_Unlock(hInstance, es->hloc16)) ;
3842 LOCAL_Free(hInstance, es->hloc16);
3843 }
3844
3845 pc = es->first_line_def;
3846 while (pc)
3847 {
3848 pp = pc->next;
3849 HeapFree(GetProcessHeap(), 0, pc);
3850 pc = pp;
3851 }
3852
3853 SetWindowLongW( es->hwndSelf, 0, 0 );
3854 HeapFree(GetProcessHeap(), 0, es);
3855
3856 return 0;
3857 }
3858
3859
3860 /*********************************************************************
3861 *
3862 * WM_ERASEBKGND
3863 *
3864 */
3865 static LRESULT EDIT_WM_EraseBkGnd(EDITSTATE *es, HDC dc)
3866 {
3867 /* we do the proper erase in EDIT_WM_Paint */
3868 return -1;
3869 }
3870
3871
3872 /*********************************************************************
3873 *
3874 * WM_GETTEXT
3875 *
3876 */
3877 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3878 {
3879 if(!count) return 0;
3880
3881 if(unicode)
3882 {
3883 LPWSTR textW = (LPWSTR)lParam;
3884 lstrcpynW(textW, es->text, count);
3885 return strlenW(textW);
3886 }
3887 else
3888 {
3889 LPSTR textA = (LPSTR)lParam;
3890 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3891 textA[count - 1] = 0; /* ensure 0 termination */
3892 return strlen(textA);
3893 }
3894 }
3895
3896 /*********************************************************************
3897 *
3898 * WM_HSCROLL
3899 *
3900 */
3901 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3902 {
3903 INT dx;
3904 INT fw;
3905
3906 if (!(es->style & ES_MULTILINE))
3907 return 0;
3908
3909 if (!(es->style & ES_AUTOHSCROLL))
3910 return 0;
3911
3912 dx = 0;
3913 fw = es->format_rect.right - es->format_rect.left;
3914 switch (action) {
3915 case SB_LINELEFT:
3916 TRACE("SB_LINELEFT\n");
3917 if (es->x_offset)
3918 dx = -es->char_width;
3919 break;
3920 case SB_LINERIGHT:
3921 TRACE("SB_LINERIGHT\n");
3922 if (es->x_offset < es->text_width)
3923 dx = es->char_width;
3924 break;
3925 case SB_PAGELEFT:
3926 TRACE("SB_PAGELEFT\n");
3927 if (es->x_offset)
3928 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3929 break;
3930 case SB_PAGERIGHT:
3931 TRACE("SB_PAGERIGHT\n");
3932 if (es->x_offset < es->text_width)
3933 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3934 break;
3935 case SB_LEFT:
3936 TRACE("SB_LEFT\n");
3937 if (es->x_offset)
3938 dx = -es->x_offset;
3939 break;
3940 case SB_RIGHT:
3941 TRACE("SB_RIGHT\n");
3942 if (es->x_offset < es->text_width)
3943 dx = es->text_width - es->x_offset;
3944 break;
3945 case SB_THUMBTRACK:
3946 TRACE("SB_THUMBTRACK %d\n", pos);
3947 es->flags |= EF_HSCROLL_TRACK;
3948 if(es->style & WS_HSCROLL)
3949 dx = pos - es->x_offset;
3950 else
3951 {
3952 INT fw, new_x;
3953 /* Sanity check */
3954 if(pos < 0 || pos > 100) return 0;
3955 /* Assume default scroll range 0-100 */
3956 fw = es->format_rect.right - es->format_rect.left;
3957 new_x = pos * (es->text_width - fw) / 100;
3958 dx = es->text_width ? (new_x - es->x_offset) : 0;
3959 }
3960 break;
3961 case SB_THUMBPOSITION:
3962 TRACE("SB_THUMBPOSITION %d\n", pos);
3963 es->flags &= ~EF_HSCROLL_TRACK;
3964 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3965 dx = pos - es->x_offset;
3966 else
3967 {
3968 INT fw, new_x;
3969 /* Sanity check */
3970 if(pos < 0 || pos > 100) return 0;
3971 /* Assume default scroll range 0-100 */
3972 fw = es->format_rect.right - es->format_rect.left;
3973 new_x = pos * (es->text_width - fw) / 100;
3974 dx = es->text_width ? (new_x - es->x_offset) : 0;
3975 }
3976 if (!dx) {
3977 /* force scroll info update */
3978 EDIT_UpdateScrollInfo(es);
3979 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
3980 }
3981 break;
3982 case SB_ENDSCROLL:
3983 TRACE("SB_ENDSCROLL\n");
3984 break;
3985 /*
3986 * FIXME : the next two are undocumented !
3987 * Are we doing the right thing ?
3988 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3989 * although it's also a regular control message.
3990 */
3991 case EM_GETTHUMB: /* this one is used by NT notepad */
3992 case EM_GETTHUMB16:
3993 {
3994 LRESULT ret;
3995 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3996 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3997 else
3998 {
3999 /* Assume default scroll range 0-100 */
4000 INT fw = es->format_rect.right - es->format_rect.left;
4001 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4002 }
4003 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4004 return ret;
4005 }
4006 case EM_LINESCROLL16:
4007 TRACE("EM_LINESCROLL16\n");
4008 dx = pos;
4009 break;
4010
4011 default:
4012 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4013 action, action);
4014 return 0;
4015 }
4016 if (dx)
4017 {
4018 INT fw = es->format_rect.right - es->format_rect.left;
4019 /* check if we are going to move too far */
4020 if(es->x_offset + dx + fw > es->text_width)
4021 dx = es->text_width - fw - es->x_offset;
4022 if(dx)
4023 EDIT_EM_LineScroll_internal(es, dx, 0);
4024 }
4025 return 0;
4026 }
4027
4028
4029 /*********************************************************************
4030 *
4031 * EDIT_CheckCombo
4032 *
4033 */
4034 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
4035 {
4036 HWND hLBox = es->hwndListBox;
4037 HWND hCombo;
4038 BOOL bDropped;
4039 int nEUI;
4040
4041 if (!hLBox)
4042 return FALSE;
4043
4044 hCombo = GetParent(es->hwndSelf);
4045 bDropped = TRUE;
4046 nEUI = 0;
4047
4048 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
4049
4050 if (key == VK_UP || key == VK_DOWN)
4051 {
4052 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4053 nEUI = 1;
4054
4055 if (msg == WM_KEYDOWN || nEUI)
4056 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4057 }
4058
4059 switch (msg)
4060 {
4061 case WM_KEYDOWN:
4062 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4063 {
4064 /* make sure ComboLBox pops up */
4065 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4066 key = VK_F4;
4067 nEUI = 2;
4068 }
4069
4070 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4071 break;
4072
4073 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4074 if (nEUI)
4075 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4076 else
4077 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4078 break;
4079 }
4080
4081 if(nEUI == 2)
4082 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4083
4084 return TRUE;
4085 }
4086
4087
4088 /*********************************************************************
4089 *
4090 * WM_KEYDOWN
4091 *
4092 * Handling of special keys that don't produce a WM_CHAR
4093 * (i.e. non-printable keys) & Backspace & Delete
4094 *
4095 */
4096 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
4097 {
4098 BOOL shift;
4099 BOOL control;
4100
4101 if (GetKeyState(VK_MENU) & 0x8000)
4102 return 0;
4103
4104 shift = GetKeyState(VK_SHIFT) & 0x8000;
4105 control = GetKeyState(VK_CONTROL) & 0x8000;
4106
4107 switch (key) {
4108 case VK_F4:
4109 case VK_UP:
4110 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
4111 break;
4112
4113 /* fall through */
4114 case VK_LEFT:
4115 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4116 EDIT_MoveUp_ML(es, shift);
4117 else
4118 if (control)
4119 EDIT_MoveWordBackward(es, shift);
4120 else
4121 EDIT_MoveBackward(es, shift);
4122 break;
4123 case VK_DOWN:
4124 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
4125 break;
4126 /* fall through */
4127 case VK_RIGHT:
4128 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4129 EDIT_MoveDown_ML(es, shift);
4130 else if (control)
4131 EDIT_MoveWordForward(es, shift);
4132 else
4133 EDIT_MoveForward(es, shift);
4134 break;
4135 case VK_HOME:
4136 EDIT_MoveHome(es, shift);
4137 break;
4138 case VK_END:
4139 EDIT_MoveEnd(es, shift);
4140 break;
4141 case VK_PRIOR:
4142 if (es->style & ES_MULTILINE)
4143 EDIT_MovePageUp_ML(es, shift);
4144 else
4145 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4146 break;
4147 case VK_NEXT:
4148 if (es->style & ES_MULTILINE)
4149 EDIT_MovePageDown_ML(es, shift);
4150 else
4151 EDIT_CheckCombo(es, WM_KEYDOWN, key);
4152 break;
4153 case VK_DELETE:
4154 if (!(es->style & ES_READONLY) && !(shift && control)) {
4155 if (es->selection_start != es->selection_end) {
4156 if (shift)
4157 EDIT_WM_Cut(es);
4158 else
4159 EDIT_WM_Clear(es);
4160 } else {
4161 if (shift) {
4162 /* delete character left of caret */
4163 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4164 EDIT_MoveBackward(es, TRUE);
4165 EDIT_WM_Clear(es);
4166 } else if (control) {
4167 /* delete to end of line */
4168 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4169 EDIT_MoveEnd(es, TRUE);
4170 EDIT_WM_Clear(es);
4171 } else {
4172 /* delete character right of caret */
4173 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
4174 EDIT_MoveForward(es, TRUE);
4175 EDIT_WM_Clear(es);
4176 }
4177 }
4178 }
4179 break;
4180 case VK_INSERT:
4181 if (shift) {
4182 if (!(es->style & ES_READONLY))
4183 EDIT_WM_Paste(es);
4184 } else if (control)
4185 EDIT_WM_Copy(es);
4186 break;
4187 case VK_RETURN:
4188 /* If the edit doesn't want the return send a message to the default object */
4189 if(!(es->style & ES_WANTRETURN))
4190 {
4191 HWND hwndParent = GetParent(es->hwndSelf);
4192 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4193 if (HIWORD(dw) == DC_HASDEFID)
4194 {
4195 SendMessageW( hwndParent, WM_COMMAND,
4196 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4197 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4198 }
4199 }
4200 break;
4201 }
4202 return 0;
4203 }
4204
4205
4206 /*********************************************************************
4207 *
4208 * WM_KILLFOCUS
4209 *
4210 */
4211 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
4212 {
4213 es->flags &= ~EF_FOCUSED;
4214 DestroyCaret();
4215 if(!(es->style & ES_NOHIDESEL))
4216 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4217 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4218 return 0;
4219 }
4220
4221
4222 /*********************************************************************
4223 *
4224 * WM_LBUTTONDBLCLK
4225 *
4226 * The caret position has been set on the WM_LBUTTONDOWN message
4227 *
4228 */
4229 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
4230 {
4231 INT s;
4232 INT e = es->selection_end;
4233 INT l;
4234 INT li;
4235 INT ll;
4236
4237 if (!(es->flags & EF_FOCUSED))
4238 return 0;
4239
4240 l = EDIT_EM_LineFromChar(es, e);
4241 li = EDIT_EM_LineIndex(es, l);
4242 ll = EDIT_EM_LineLength(es, e);
4243 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4244 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4245 EDIT_EM_SetSel(es, s, e, FALSE);
4246 EDIT_EM_ScrollCaret(es);
4247 return 0;
4248 }
4249
4250
4251 /*********************************************************************
4252 *
4253 * WM_LBUTTONDOWN
4254 *
4255 */
4256 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
4257 {
4258 INT e;
4259 BOOL after_wrap;
4260
4261 SetFocus(es->hwndSelf);
4262 if (!(es->flags & EF_FOCUSED))
4263 return 0;
4264
4265 es->bCaptureState = TRUE;
4266 SetCapture(es->hwndSelf);
4267 EDIT_ConfinePoint(es, &x, &y);
4268 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4269 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4270 EDIT_EM_ScrollCaret(es);
4271 es->region_posx = es->region_posy = 0;
4272 SetTimer(es->hwndSelf, 0, 100, NULL);
4273 return 0;
4274 }
4275
4276
4277 /*********************************************************************
4278 *
4279 * WM_LBUTTONUP
4280 *
4281 */
4282 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
4283 {
4284 if (es->bCaptureState) {
4285 KillTimer(es->hwndSelf, 0);
4286 if (GetCapture() == es->hwndSelf) ReleaseCapture();
4287 }
4288 es->bCaptureState = FALSE;
4289 return 0;
4290 }
4291
4292
4293 /*********************************************************************
4294 *
4295 * WM_MBUTTONDOWN
4296 *
4297 */
4298 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
4299 {
4300 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
4301 return 0;
4302 }
4303
4304
4305 /*********************************************************************
4306 *
4307 * WM_MOUSEMOVE
4308 *
4309 */
4310 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
4311 {
4312 INT e;
4313 BOOL after_wrap;
4314 INT prex, prey;
4315
4316 if (GetCapture() != es->hwndSelf)
4317 return 0;
4318
4319 /*
4320 * FIXME: gotta do some scrolling if outside client
4321 * area. Maybe reset the timer ?
4322 */
4323 prex = x; prey = y;
4324 EDIT_ConfinePoint(es, &x, &y);
4325 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4326 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4327 e = EDIT_CharFromPos(es, x, y, &after_wrap);
4328 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
4329 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
4330 return 0;
4331 }
4332
4333
4334 /*********************************************************************
4335 *
4336 * WM_NCCREATE
4337 *
4338 * See also EDIT_WM_StyleChanged
4339 */
4340 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4341 {
4342 EDITSTATE *es;
4343 UINT alloc_size;
4344
4345 TRACE("Creating %s edit control, style = %08lx\n",
4346 unicode ? "Unicode" : "ANSI", lpcs->style);
4347
4348 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4349 return FALSE;
4350 SetWindowLongW( hwnd, 0, (LONG)es );
4351
4352 /*
4353 * Note: since the EDITSTATE has not been fully initialized yet,
4354 * we can't use any API calls that may send
4355 * WM_XXX messages before WM_NCCREATE is completed.
4356 */
4357
4358 es->is_unicode = unicode;
4359 es->style = lpcs->style;
4360
4361 es->bEnableState = !(es->style & WS_DISABLED);
4362
4363 es->hwndSelf = hwnd;
4364 /* Save parent, which will be notified by EN_* messages */
4365 es->hwndParent = lpcs->hwndParent;
4366
4367 if (es->style & ES_COMBO)
4368 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4369
4370 /* Number overrides lowercase overrides uppercase (at least it
4371 * does in Win95). However I'll bet that ES_NUMBER would be
4372 * invalid under Win 3.1.
4373 */
4374 if (es->style & ES_NUMBER) {
4375 ; /* do not override the ES_NUMBER */
4376 } else if (es->style & ES_LOWERCASE) {
4377 es->style &= ~ES_UPPERCASE;
4378 }
4379 if (es->style & ES_MULTILINE) {
4380 es->buffer_limit = BUFLIMIT_MULTI;
4381 if (es->style & WS_VSCROLL)
4382 es->style |= ES_AUTOVSCROLL;
4383 if (es->style & WS_HSCROLL)
4384 es->style |= ES_AUTOHSCROLL;
4385 es->style &= ~ES_PASSWORD;
4386 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4387 /* Confirmed - RIGHT overrides CENTER */
4388 if (es->style & ES_RIGHT)
4389 es->style &= ~ES_CENTER;
4390 es->style &= ~WS_HSCROLL;
4391 es->style &= ~ES_AUTOHSCROLL;
4392 }
4393
4394 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4395 es->style |= ES_AUTOVSCROLL;
4396 } else {
4397 es->buffer_limit = BUFLIMIT_SINGLE;
4398 es->style &= ~ES_CENTER;
4399 es->style &= ~ES_RIGHT;
4400 es->style &= ~WS_HSCROLL;
4401 es->style &= ~WS_VSCROLL;
4402 es->style &= ~ES_AUTOVSCROLL;
4403 es->style &= ~ES_WANTRETURN;
4404 if (es->style & ES_PASSWORD)
4405 es->password_char = '*';
4406
4407 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4408 es->style |= ES_AUTOHSCROLL;
4409 }
4410
4411 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4412 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4413 return FALSE;
4414 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4415
4416 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4417 return FALSE;
4418 es->undo_buffer_size = es->buffer_size;
4419
4420 if (es->style & ES_MULTILINE)
4421 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4422 return FALSE;
4423 es->line_count = 1;
4424
4425 /*
4426 * In Win95 look and feel, the WS_BORDER style is replaced by the
4427 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4428 * control a non client area. Not always. This coordinates in some
4429 * way with the window creation code in dialog.c When making
4430 * modifications please ensure that the code still works for edit
4431 * controls created directly with style 0x50800000, exStyle 0 (
4432 * which should have a single pixel border)
4433 */
4434 es->style &= ~WS_BORDER;
4435
4436 return TRUE;
4437 }
4438
4439 /*********************************************************************
4440 *
4441 * WM_PAINT
4442 *
4443 */
4444 static void EDIT_WM_Paint(EDITSTATE *es, WPARAM wParam)
4445 {
4446 PAINTSTRUCT ps;
4447 INT i;
4448 HDC dc;
4449 HFONT old_font = 0;
4450 RECT rc;
4451 RECT rcClient;
4452 RECT rcLine;
4453 RECT rcRgn;
4454 HBRUSH brush;
4455 BOOL rev = es->bEnableState &&
4456 ((es->flags & EF_FOCUSED) ||
4457 (es->style & ES_NOHIDESEL));
4458 if (!wParam)
4459 dc = BeginPaint(es->hwndSelf, &ps);
4460 else
4461 dc = (HDC) wParam;
4462
4463 GetClientRect(es->hwndSelf, &rcClient);
4464
4465 /* paint the background */
4466 if (!(brush = EDIT_NotifyCtlColor(es, dc)))
4467 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
4468 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
4469 GetClipBox(dc, &rc);
4470 FillRect(dc, &rc, brush);
4471
4472 /* draw the border */
4473 if(es->style & WS_BORDER) {
4474 rc = rcClient;
4475 if(es->style & ES_MULTILINE) {
4476 if(es->style & WS_HSCROLL) rc.bottom++;
4477 if(es->style & WS_VSCROLL) rc.right++;
4478 }
4479 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4480 }
4481 IntersectClipRect(dc, es->format_rect.left,
4482 es->format_rect.top,
4483 es->format_rect.right,
4484 es->format_rect.bottom);
4485 if (es->style & ES_MULTILINE) {
4486 rc = rcClient;
4487 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4488 }
4489 if (es->font)
4490 old_font = SelectObject(dc, es->font);
4491 EDIT_NotifyCtlColor(es, dc);
4492
4493 if (!es->bEnableState)
4494 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4495 GetClipBox(dc, &rcRgn);
4496 if (es->style & ES_MULTILINE) {
4497 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4498 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4499 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
4500 if (IntersectRect(&rc, &rcRgn, &rcLine))
4501 EDIT_PaintLine(es, dc, i, rev);
4502 }
4503 } else {
4504 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
4505 if (IntersectRect(&rc, &rcRgn, &rcLine))
4506 EDIT_PaintLine(es, dc, 0, rev);
4507 }
4508 if (es->font)
4509 SelectObject(dc, old_font);
4510
4511 if (!wParam)
4512 EndPaint(es->hwndSelf, &ps);
4513 }
4514
4515
4516 /*********************************************************************
4517 *
4518 * WM_PASTE
4519 *
4520 */
4521 static void EDIT_WM_Paste(EDITSTATE *es)
4522 {
4523 HGLOBAL hsrc;
4524 LPWSTR src;
4525
4526 /* Protect read-only edit control from modification */
4527 if(es->style & ES_READONLY)
4528 return;
4529
4530 OpenClipboard(es->hwndSelf);
4531 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4532 src = (LPWSTR)GlobalLock(hsrc);
4533 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
4534 GlobalUnlock(hsrc);
4535 }
4536 CloseClipboard();
4537 }
4538
4539
4540 /*********************************************************************
4541 *
4542 * WM_SETFOCUS
4543 *
4544 */
4545 static void EDIT_WM_SetFocus(EDITSTATE *es)
4546 {
4547 es->flags |= EF_FOCUSED;
4548 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4549 EDIT_SetCaretPos(es, es->selection_end,
4550 es->flags & EF_AFTER_WRAP);
4551 if(!(es->style & ES_NOHIDESEL))
4552 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
4553 ShowCaret(es->hwndSelf);
4554 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4555 }
4556
4557
4558 /*********************************************************************
4559 *
4560 * WM_SETFONT
4561 *
4562 * With Win95 look the margins are set to default font value unless
4563 * the system font (font == 0) is being set, in which case they are left
4564 * unchanged.
4565 *
4566 */
4567 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
4568 {
4569 TEXTMETRICW tm;
4570 HDC dc;
4571 HFONT old_font = 0;
4572 RECT r;
4573
4574 es->font = font;
4575 dc = GetDC(es->hwndSelf);
4576 if (font)
4577 old_font = SelectObject(dc, font);
4578 GetTextMetricsW(dc, &tm);
4579 es->line_height = tm.tmHeight;
4580 es->char_width = tm.tmAveCharWidth;
4581 if (font)
4582 SelectObject(dc, old_font);
4583 ReleaseDC(es->hwndSelf, dc);
4584 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4585 EC_USEFONTINFO, EC_USEFONTINFO);
4586
4587 /* Force the recalculation of the format rect for each font change */
4588 GetClientRect(es->hwndSelf, &r);
4589 EDIT_SetRectNP(es, &r);
4590
4591 if (es->style & ES_MULTILINE)
4592 EDIT_BuildLineDefs_ML(es, 0, strlenW(es->text), 0, NULL);
4593 else
4594 EDIT_CalcLineWidth_SL(es);
4595
4596 if (redraw)
4597 EDIT_UpdateText(es, NULL, TRUE);
4598 if (es->flags & EF_FOCUSED) {
4599 DestroyCaret();
4600 CreateCaret(es->hwndSelf, 0, 2, es->line_height);
4601 EDIT_SetCaretPos(es, es->selection_end,
4602 es->flags & EF_AFTER_WRAP);
4603 ShowCaret(es->hwndSelf);
4604 }
4605 }
4606
4607
4608 /*********************************************************************
4609 *
4610 * WM_SETTEXT
4611 *
4612 * NOTES
4613 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4614 * The modified flag is reset. No notifications are sent.
4615 *
4616 * For single-line controls, reception of WM_SETTEXT triggers:
4617 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4618 *
4619 */
4620 static void EDIT_WM_SetText(EDITSTATE *es, LPARAM lParam, BOOL unicode)
4621 {
4622 LPWSTR text = NULL;
4623
4624 if(unicode)
4625 text = (LPWSTR)lParam;
4626 else if (lParam)
4627 {
4628 LPCSTR textA = (LPCSTR)lParam;
4629 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4630 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4631 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4632 }
4633
4634 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
4635 if (text) {
4636 TRACE("%s\n", debugstr_w(text));
4637 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
4638 if(!unicode)
4639 HeapFree(GetProcessHeap(), 0, text);
4640 } else {
4641 static const WCHAR empty_stringW[] = {0};
4642 TRACE("<NULL>\n");
4643 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
4644 }
4645 es->x_offset = 0;
4646 es->flags &= ~EF_MODIFIED;
4647 EDIT_EM_SetSel(es, 0, 0, FALSE);
4648 /* Send the notification after the selection start and end have been set
4649 * edit control doesn't send notification on WM_SETTEXT
4650 * if it is multiline, or it is part of combobox
4651 */
4652 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4653 {
4654 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4655 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4656 }
4657 EDIT_EM_ScrollCaret(es);
4658 }
4659
4660
4661 /*********************************************************************
4662 *
4663 * WM_SIZE
4664 *
4665 */
4666 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
4667 {
4668 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4669 RECT rc;
4670 TRACE("width = %d, height = %d\n", width, height);
4671 SetRect(&rc, 0, 0, width, height);
4672 EDIT_SetRectNP(es, &rc);
4673 EDIT_UpdateText(es, NULL, TRUE);
4674 }
4675 }
4676
4677
4678 /*********************************************************************
4679 *
4680 * WM_STYLECHANGED
4681 *
4682 * This message is sent by SetWindowLong on having changed either the Style
4683 * or the extended style.
4684 *
4685 * We ensure that the window's version of the styles and the EDITSTATE's agree.
4686 *
4687 * See also EDIT_WM_NCCreate
4688 *
4689 * It appears that the Windows version of the edit control allows the style
4690 * (as retrieved by GetWindowLong) to be any value and maintains an internal
4691 * style variable which will generally be different. In this function we
4692 * update the internal style based on what changed in the externally visible
4693 * style.
4694 *
4695 * Much of this content as based upon the MSDN, especially:
4696 * Platform SDK Documentation -> User Interface Services ->
4697 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
4698 * Edit Control Styles
4699 */
4700 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
4701 {
4702 if (GWL_STYLE == which) {
4703 DWORD style_change_mask;
4704 DWORD new_style;
4705 /* Only a subset of changes can be applied after the control
4706 * has been created.
4707 */
4708 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
4709 ES_NUMBER;
4710 if (es->style & ES_MULTILINE)
4711 style_change_mask |= ES_WANTRETURN;
4712
4713 new_style = style->styleNew & style_change_mask;
4714
4715 /* Number overrides lowercase overrides uppercase (at least it
4716 * does in Win95). However I'll bet that ES_NUMBER would be
4717 * invalid under Win 3.1.
4718 */
4719 if (new_style & ES_NUMBER) {
4720 ; /* do not override the ES_NUMBER */
4721 } else if (new_style & ES_LOWERCASE) {
4722 new_style &= ~ES_UPPERCASE;
4723 }
4724
4725 es->style = (es->style & ~style_change_mask) | new_style;
4726 } else if (GWL_EXSTYLE == which) {
4727 ; /* FIXME - what is needed here */
4728 } else {
4729 WARN ("Invalid style change %d\n",which);
4730 }
4731
4732 return 0;
4733 }
4734
4735 /*********************************************************************
4736 *
4737 * WM_SYSKEYDOWN
4738 *
4739 */
4740 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
4741 {
4742 if ((key == VK_BACK) && (key_data & 0x2000)) {
4743 if (EDIT_EM_CanUndo(es))
4744 EDIT_EM_Undo(es);
4745 return 0;
4746 } else if (key == VK_UP || key == VK_DOWN) {
4747 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
4748 return 0;
4749 }
4750 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4751 }
4752
4753
4754 /*********************************************************************
4755 *
4756 * WM_TIMER
4757 *
4758 */
4759 static void EDIT_WM_Timer(EDITSTATE *es)
4760 {
4761 if (es->region_posx < 0) {
4762 EDIT_MoveBackward(es, TRUE);
4763 } else if (es->region_posx > 0) {
4764 EDIT_MoveForward(es, TRUE);
4765 }
4766 /*
4767 * FIXME: gotta do some vertical scrolling here, like
4768 * EDIT_EM_LineScroll(hwnd, 0, 1);
4769 */
4770 }
4771
4772 /*********************************************************************
4773 *
4774 * WM_VSCROLL
4775 *
4776 */
4777 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
4778 {
4779 INT dy;
4780
4781 if (!(es->style & ES_MULTILINE))
4782 return 0;
4783
4784 if (!(es->style & ES_AUTOVSCROLL))
4785 return 0;
4786
4787 dy = 0;
4788 switch (action) {
4789 case SB_LINEUP:
4790 case SB_LINEDOWN:
4791 case SB_PAGEUP:
4792 case SB_PAGEDOWN:
4793 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
4794 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
4795 (action == SB_PAGEUP ? "SB_PAGEUP" :
4796 "SB_PAGEDOWN"))));
4797 EDIT_EM_Scroll(es, action);
4798 return 0;
4799 case SB_TOP:
4800 TRACE("SB_TOP\n");
4801 dy = -es->y_offset;
4802 break;
4803 case SB_BOTTOM:
4804 TRACE("SB_BOTTOM\n");
4805 dy = es->line_count - 1 - es->y_offset;
4806 break;
4807 case SB_THUMBTRACK:
4808 TRACE("SB_THUMBTRACK %d\n", pos);
4809 es->flags |= EF_VSCROLL_TRACK;
4810 if(es->style & WS_VSCROLL)
4811 dy = pos - es->y_offset;
4812 else
4813 {
4814 /* Assume default scroll range 0-100 */
4815 INT vlc, new_y;
4816 /* Sanity check */
4817 if(pos < 0 || pos > 100) return 0;
4818 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4819 new_y = pos * (es->line_count - vlc) / 100;
4820 dy = es->line_count ? (new_y - es->y_offset) : 0;
4821 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4822 es->line_count, es->y_offset, pos, dy);
4823 }
4824 break;
4825 case SB_THUMBPOSITION:
4826 TRACE("SB_THUMBPOSITION %d\n", pos);
4827 es->flags &= ~EF_VSCROLL_TRACK;
4828 if(es->style & WS_VSCROLL)
4829 dy = pos - es->y_offset;
4830 else
4831 {
4832 /* Assume default scroll range 0-100 */
4833 INT vlc, new_y;
4834 /* Sanity check */
4835 if(pos < 0 || pos > 100) return 0;
4836 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4837 new_y = pos * (es->line_count - vlc) / 100;
4838 dy = es->line_count ? (new_y - es->y_offset) : 0;
4839 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4840 es->line_count, es->y_offset, pos, dy);
4841 }
4842 if (!dy)
4843 {
4844 /* force scroll info update */
4845 EDIT_UpdateScrollInfo(es);
4846 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
4847 }
4848 break;
4849 case SB_ENDSCROLL:
4850 TRACE("SB_ENDSCROLL\n");
4851 break;
4852 /*
4853 * FIXME : the next two are undocumented !
4854 * Are we doing the right thing ?
4855 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4856 * although it's also a regular control message.
4857 */
4858 case EM_GETTHUMB: /* this one is used by NT notepad */
4859 case EM_GETTHUMB16:
4860 {
4861 LRESULT ret;
4862 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4863 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4864 else
4865 {
4866 /* Assume default scroll range 0-100 */
4867 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4868 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4869 }
4870 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4871 return ret;
4872 }
4873 case EM_LINESCROLL16:
4874 TRACE("EM_LINESCROLL16 %d\n", pos);
4875 dy = pos;
4876 break;
4877
4878 default:
4879 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4880 action, action);
4881 return 0;
4882 }
4883 if (dy)
4884 EDIT_EM_LineScroll(es, 0, dy);
4885 return 0;
4886 }
4887
4888 /*********************************************************************
4889 *
4890 * EDIT_UpdateText
4891 *
4892 */
4893 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
4894 {
4895 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4896 InvalidateRgn(es->hwndSelf, hrgn, bErase);
4897 }
4898
4899
4900 /*********************************************************************
4901 *
4902 * EDIT_UpdateText
4903 *
4904 */
4905 static void EDIT_UpdateText(EDITSTATE *es, LPRECT rc, BOOL bErase)
4906 {
4907 if (es->flags & EF_UPDATE) EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4908 InvalidateRect(es->hwndSelf, rc, bErase);
4909 }
Windows API implementation