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- implement some more virtcopy (VCP) stuff
[wine.git] / controls / edit.c
blob881cd708aaa4c0f0a3d403f25de41972e40d229c
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
10 /*
11 * please read EDIT.TODO (and update it when you change things)
12 */
13
14 #include "config.h"
15
16 #include <string.h>
17 #include <stdlib.h>
18
19 #include "winbase.h"
20 #include "winnt.h"
21 #include "win.h"
22 #include "wine/winbase16.h"
23 #include "wine/winuser16.h"
24 #include "wine/unicode.h"
25 #include "controls.h"
26 #include "local.h"
27 #include "user.h"
28 #include "debugtools.h"
29
30 DEFAULT_DEBUG_CHANNEL(edit);
31 DECLARE_DEBUG_CHANNEL(combo);
32 DECLARE_DEBUG_CHANNEL(relay);
33
34 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
35 FIXME: BTW, new specs say 65535 (do you dare ???) */
36 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
37 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
38 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
39 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
40
41 /*
42 * extra flags for EDITSTATE.flags field
43 */
44 #define EF_MODIFIED 0x0001 /* text has been modified */
45 #define EF_FOCUSED 0x0002 /* we have input focus */
46 #define EF_UPDATE 0x0004 /* notify parent of changed state */
47 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
48 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
49 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
50 wrapped line, instead of in front of the next character */
51 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
52
53 typedef enum
54 {
55 END_0 = 0, /* line ends with terminating '\0' character */
56 END_WRAP, /* line is wrapped */
57 END_HARD, /* line ends with a hard return '\r\n' */
58 END_SOFT /* line ends with a soft return '\r\r\n' */
59 } LINE_END;
60
61 typedef struct tagLINEDEF {
62 INT length; /* bruto length of a line in bytes */
63 INT net_length; /* netto length of a line in visible characters */
64 LINE_END ending;
65 INT width; /* width of the line in pixels */
66 INT index; /* line index into the buffer */
67 struct tagLINEDEF *next;
68 } LINEDEF;
69
70 typedef struct
71 {
72 BOOL is_unicode; /* how the control was created */
73 LPWSTR text; /* the actual contents of the control */
74 UINT buffer_size; /* the size of the buffer in characters */
75 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
76 HFONT font; /* NULL means standard system font */
77 INT x_offset; /* scroll offset for multi lines this is in pixels
78 for single lines it's in characters */
79 INT line_height; /* height of a screen line in pixels */
80 INT char_width; /* average character width in pixels */
81 DWORD style; /* sane version of wnd->dwStyle */
82 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
83 INT undo_insert_count; /* number of characters inserted in sequence */
84 UINT undo_position; /* character index of the insertion and deletion */
85 LPWSTR undo_text; /* deleted text */
86 UINT undo_buffer_size; /* size of the deleted text buffer */
87 INT selection_start; /* == selection_end if no selection */
88 INT selection_end; /* == current caret position */
89 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
90 INT left_margin; /* in pixels */
91 INT right_margin; /* in pixels */
92 RECT format_rect;
93 INT text_width; /* width of the widest line in pixels for multi line controls
94 and just line width for single line controls */
95 INT region_posx; /* Position of cursor relative to region: */
96 INT region_posy; /* -1: to left, 0: within, 1: to right */
97 EDITWORDBREAKPROC16 word_break_proc16;
98 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
99 INT line_count; /* number of lines */
100 INT y_offset; /* scroll offset in number of lines */
101 BOOL bCaptureState; /* flag indicating whether mouse was captured */
102 BOOL bEnableState; /* flag keeping the enable state */
103 HWND hwndParent; /* Handle of parent for sending EN_* messages.
104 Even if parent will change, EN_* messages
105 should be sent to the first parent. */
106 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
107 /*
108 * only for multi line controls
109 */
110 INT lock_count; /* amount of re-entries in the EditWndProc */
111 INT tabs_count;
112 LPINT tabs;
113 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
114 HLOCAL hloc32W; /* our unicode local memory block */
115 HLOCAL16 hloc16; /* alias for 16-bit control receiving EM_GETHANDLE16
116 or EM_SETHANDLE16 */
117 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
118 or EM_SETHANDLE */
119 } EDITSTATE;
120
121
122 #define SWAP_INT32(x,y) do { INT temp = (INT)(x); (x) = (INT)(y); (y) = temp; } while(0)
123 #define ORDER_INT(x,y) do { if ((INT)(y) < (INT)(x)) SWAP_INT32((x),(y)); } while(0)
124
125 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
126 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
127
128 #define DPRINTF_EDIT_NOTIFY(hwnd, str) \
129 do {TRACE("notification " str " sent to hwnd=%08x\n", \
130 (UINT)(hwnd));} while(0)
131
132 /* used for disabled or read-only edit control */
133 #define EDIT_SEND_CTLCOLORSTATIC(wnd,hdc) \
134 (SendMessageW((wnd)->parent->hwndSelf, WM_CTLCOLORSTATIC, \
135 (WPARAM)(hdc), (LPARAM)(wnd)->hwndSelf))
136 #define EDIT_SEND_CTLCOLOR(wnd,hdc) \
137 (SendMessageW((wnd)->parent->hwndSelf, WM_CTLCOLOREDIT, \
138 (WPARAM)(hdc), (LPARAM)(wnd)->hwndSelf))
139 #define EDIT_NOTIFY_PARENT(es, wNotifyCode, str) \
140 do \
141 { /* Notify parent which has created this edit control */ \
142 DPRINTF_EDIT_NOTIFY((es)->hwndParent, str); \
143 SendMessageW((es)->hwndParent, WM_COMMAND, \
144 MAKEWPARAM((wnd)->wIDmenu, wNotifyCode), \
145 (LPARAM)(wnd)->hwndSelf); \
146 } while(0)
147 #define DPRINTF_EDIT_MSG16(str) \
148 TRACE(\
149 "16 bit : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
150 (UINT)wnd->hwndSelf, (UINT)wParam, (UINT)lParam)
151 #define DPRINTF_EDIT_MSG32(str) \
152 TRACE(\
153 "32 bit %c : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
154 unicode ? 'W' : 'A', \
155 (UINT)wnd->hwndSelf, (UINT)wParam, (UINT)lParam)
156
157 /*********************************************************************
158 *
159 * Declarations
160 *
161 */
162
163 /*
164 * These functions have trivial implementations
165 * We still like to call them internally
166 * "static inline" makes them more like macro's
167 */
168 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es);
169 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es);
170 static inline void EDIT_WM_Clear(WND *wnd, EDITSTATE *es);
171 static inline void EDIT_WM_Cut(WND *wnd, EDITSTATE *es);
172
173 /*
174 * Helper functions only valid for one type of control
175 */
176 static void EDIT_BuildLineDefs_ML(WND *wnd, EDITSTATE *es, INT iStart, INT iEnd, INT delta, HRGN hrgn);
177 static void EDIT_CalcLineWidth_SL(WND *wnd, EDITSTATE *es);
178 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es);
179 static void EDIT_MoveDown_ML(WND *wnd, EDITSTATE *es, BOOL extend);
180 static void EDIT_MovePageDown_ML(WND *wnd, EDITSTATE *es, BOOL extend);
181 static void EDIT_MovePageUp_ML(WND *wnd, EDITSTATE *es, BOOL extend);
182 static void EDIT_MoveUp_ML(WND *wnd, EDITSTATE *es, BOOL extend);
183 /*
184 * Helper functions valid for both single line _and_ multi line controls
185 */
186 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action);
187 static INT EDIT_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y, LPBOOL after_wrap);
188 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y);
189 static void EDIT_GetLineRect(WND *wnd, EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc);
190 static void EDIT_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end);
191 static void EDIT_LockBuffer(WND *wnd, EDITSTATE *es);
192 static BOOL EDIT_MakeFit(WND *wnd, EDITSTATE *es, UINT size);
193 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size);
194 static void EDIT_MoveBackward(WND *wnd, EDITSTATE *es, BOOL extend);
195 static void EDIT_MoveEnd(WND *wnd, EDITSTATE *es, BOOL extend);
196 static void EDIT_MoveForward(WND *wnd, EDITSTATE *es, BOOL extend);
197 static void EDIT_MoveHome(WND *wnd, EDITSTATE *es, BOOL extend);
198 static void EDIT_MoveWordBackward(WND *wnd, EDITSTATE *es, BOOL extend);
199 static void EDIT_MoveWordForward(WND *wnd, EDITSTATE *es, BOOL extend);
200 static void EDIT_PaintLine(WND *wnd, EDITSTATE *es, HDC hdc, INT line, BOOL rev);
201 static INT EDIT_PaintText(EDITSTATE *es, HDC hdc, INT x, INT y, INT line, INT col, INT count, BOOL rev);
202 static void EDIT_SetCaretPos(WND *wnd, EDITSTATE *es, INT pos, BOOL after_wrap);
203 static void EDIT_SetRectNP(WND *wnd, EDITSTATE *es, LPRECT lprc);
204 static void EDIT_UnlockBuffer(WND *wnd, EDITSTATE *es, BOOL force);
205 static void EDIT_UpdateScrollInfo(WND *wnd, EDITSTATE *es);
206 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action);
207 /*
208 * EM_XXX message handlers
209 */
210 static LRESULT EDIT_EM_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y);
211 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol);
212 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es);
213 static HLOCAL16 EDIT_EM_GetHandle16(WND *wnd, EDITSTATE *es);
214 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode);
215 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, LPUINT start, LPUINT end);
216 static LRESULT EDIT_EM_GetThumb(WND *wnd, EDITSTATE *es);
217 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index);
218 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line);
219 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index);
220 static BOOL EDIT_EM_LineScroll(WND *wnd, EDITSTATE *es, INT dx, INT dy);
221 static BOOL EDIT_EM_LineScroll_internal(WND *wnd, EDITSTATE *es, INT dx, INT dy);
222 static LRESULT EDIT_EM_PosFromChar(WND *wnd, EDITSTATE *es, INT index, BOOL after_wrap);
223 static void EDIT_EM_ReplaceSel(WND *wnd, EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update);
224 static LRESULT EDIT_EM_Scroll(WND *wnd, EDITSTATE *es, INT action);
225 static void EDIT_EM_ScrollCaret(WND *wnd, EDITSTATE *es);
226 static void EDIT_EM_SetHandle(WND *wnd, EDITSTATE *es, HLOCAL hloc);
227 static void EDIT_EM_SetHandle16(WND *wnd, EDITSTATE *es, HLOCAL16 hloc);
228 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit);
229 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right);
230 static void EDIT_EM_SetPasswordChar(WND *wnd, EDITSTATE *es, WCHAR c);
231 static void EDIT_EM_SetSel(WND *wnd, EDITSTATE *es, UINT start, UINT end, BOOL after_wrap);
232 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs);
233 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs);
234 static void EDIT_EM_SetWordBreakProc(WND *wnd, EDITSTATE *es, LPARAM lParam);
235 static void EDIT_EM_SetWordBreakProc16(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
236 static BOOL EDIT_EM_Undo(WND *wnd, EDITSTATE *es);
237 /*
238 * WM_XXX message handlers
239 */
240 static void EDIT_WM_Char(WND *wnd, EDITSTATE *es, WCHAR c);
241 static void EDIT_WM_Command(WND *wnd, EDITSTATE *es, INT code, INT id, HWND conrtol);
242 static void EDIT_WM_ContextMenu(WND *wnd, EDITSTATE *es, INT x, INT y);
243 static void EDIT_WM_Copy(WND *wnd, EDITSTATE *es);
244 static LRESULT EDIT_WM_Create(WND *wnd, EDITSTATE *es, LPCWSTR name);
245 static void EDIT_WM_Destroy(WND *wnd, EDITSTATE *es);
246 static LRESULT EDIT_WM_EraseBkGnd(WND *wnd, EDITSTATE *es, HDC dc);
247 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode);
248 static LRESULT EDIT_WM_HScroll(WND *wnd, EDITSTATE *es, INT action, INT pos);
249 static LRESULT EDIT_WM_KeyDown(WND *wnd, EDITSTATE *es, INT key);
250 static LRESULT EDIT_WM_KillFocus(WND *wnd, EDITSTATE *es);
251 static LRESULT EDIT_WM_LButtonDblClk(WND *wnd, EDITSTATE *es);
252 static LRESULT EDIT_WM_LButtonDown(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y);
253 static LRESULT EDIT_WM_LButtonUp(HWND hwndSelf, EDITSTATE *es);
254 static LRESULT EDIT_WM_MButtonDown(WND *wnd);
255 static LRESULT EDIT_WM_MouseMove(WND *wnd, EDITSTATE *es, INT x, INT y);
256 static LRESULT EDIT_WM_NCCreate(WND *wnd, DWORD style, HWND hwndParent, BOOL unicode);
257 static void EDIT_WM_Paint(WND *wnd, EDITSTATE *es, WPARAM wParam);
258 static void EDIT_WM_Paste(WND *wnd, EDITSTATE *es);
259 static void EDIT_WM_SetFocus(WND *wnd, EDITSTATE *es);
260 static void EDIT_WM_SetFont(WND *wnd, EDITSTATE *es, HFONT font, BOOL redraw);
261 static void EDIT_WM_SetText(WND *wnd, EDITSTATE *es, LPARAM lParam, BOOL unicode);
262 static void EDIT_WM_Size(WND *wnd, EDITSTATE *es, UINT action, INT width, INT height);
263 static LRESULT EDIT_WM_SysKeyDown(WND *wnd, EDITSTATE *es, INT key, DWORD key_data);
264 static void EDIT_WM_Timer(WND *wnd, EDITSTATE *es);
265 static LRESULT EDIT_WM_VScroll(WND *wnd, EDITSTATE *es, INT action, INT pos);
266 static void EDIT_UpdateText(WND *wnd, LPRECT rc, BOOL bErase);
267 static void EDIT_UpdateTextRegion(WND *wnd, HRGN hrgn, BOOL bErase);
268
269 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
270 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
271
272 /*********************************************************************
273 * edit class descriptor
274 */
275 const struct builtin_class_descr EDIT_builtin_class =
276 {
277 "Edit", /* name */
278 CS_GLOBALCLASS | CS_DBLCLKS /*| CS_PARENTDC*/, /* style */
279 EditWndProcA, /* procA */
280 EditWndProcW, /* procW */
281 sizeof(EDITSTATE *), /* extra */
282 IDC_IBEAMA, /* cursor */
283 0 /* brush */
284 };
285
286
287 /*********************************************************************
288 *
289 * EM_CANUNDO
290 *
291 */
292 static inline BOOL EDIT_EM_CanUndo(EDITSTATE *es)
293 {
294 return (es->undo_insert_count || strlenW(es->undo_text));
295 }
296
297
298 /*********************************************************************
299 *
300 * EM_EMPTYUNDOBUFFER
301 *
302 */
303 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
304 {
305 es->undo_insert_count = 0;
306 *es->undo_text = '\0';
307 }
308
309
310 /*********************************************************************
311 *
312 * WM_CLEAR
313 *
314 */
315 static inline void EDIT_WM_Clear(WND *wnd, EDITSTATE *es)
316 {
317 static const WCHAR empty_stringW[] = {0};
318
319 /* Protect read-only edit control from modification */
320 if(es->style & ES_READONLY)
321 return;
322
323 EDIT_EM_ReplaceSel(wnd, es, TRUE, empty_stringW, TRUE);
324 }
325
326
327 /*********************************************************************
328 *
329 * WM_CUT
330 *
331 */
332 static inline void EDIT_WM_Cut(WND *wnd, EDITSTATE *es)
333 {
334 EDIT_WM_Copy(wnd, es);
335 EDIT_WM_Clear(wnd, es);
336 }
337
338
339 /**********************************************************************
340 * get_app_version
341 *
342 * Returns the window version in case Wine emulates a later version
343 * of windows then the application expects.
344 *
345 * In a number of cases when windows runs an application that was
346 * designed for an earlier windows version, windows reverts
347 * to "old" behaviour of that earlier version.
348 *
349 * An example is a disabled edit control that needs to be painted.
350 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
351 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
352 * applications with an expected version 0f 4.0 or higher.
353 *
354 */
355 static DWORD get_app_version(void)
356 {
357 static DWORD version;
358 if (!version)
359 {
360 DWORD dwEmulatedVersion;
361 OSVERSIONINFOW info;
362 DWORD dwProcVersion = GetProcessVersion(0);
363
364 GetVersionExW( &info );
365 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
366 /* fixme: this may not be 100% correct; see discussion on the
367 * wine developer list in Nov 1999 */
368 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
369 }
370 return version;
371 }
372
373
374 /*********************************************************************
375 *
376 * EditWndProc_locked
377 *
378 * The messages are in the order of the actual integer values
379 * (which can be found in include/windows.h)
380 * Whereever possible the 16 bit versions are converted to
381 * the 32 bit ones, so that we can 'fall through' to the
382 * helper functions. These are mostly 32 bit (with a few
383 * exceptions, clearly indicated by a '16' extension to their
384 * names).
385 *
386 */
387 static LRESULT WINAPI EditWndProc_locked( WND *wnd, UINT msg,
388 WPARAM wParam, LPARAM lParam, BOOL unicode )
389 {
390 EDITSTATE *es = *(EDITSTATE **)((wnd)->wExtra);
391 LRESULT result = 0;
392
393 switch (msg) {
394 case WM_DESTROY:
395 DPRINTF_EDIT_MSG32("WM_DESTROY");
396 EDIT_WM_Destroy(wnd, es);
397 result = 0;
398 goto END;
399
400 case WM_NCCREATE:
401 DPRINTF_EDIT_MSG32("WM_NCCREATE");
402 if(unicode)
403 {
404 LPCREATESTRUCTW cs = (LPCREATESTRUCTW)lParam;
405 result = EDIT_WM_NCCreate(wnd, cs->style, cs->hwndParent, TRUE);
406 }
407 else
408 {
409 LPCREATESTRUCTA cs = (LPCREATESTRUCTA)lParam;
410 result = EDIT_WM_NCCreate(wnd, cs->style, cs->hwndParent, FALSE);
411 }
412 goto END;
413 }
414
415 if (!es)
416 {
417 if(unicode)
418 result = DefWindowProcW(wnd->hwndSelf, msg, wParam, lParam);
419 else
420 result = DefWindowProcA(wnd->hwndSelf, msg, wParam, lParam);
421 goto END;
422 }
423
424
425 EDIT_LockBuffer(wnd, es);
426 switch (msg) {
427 case EM_GETSEL16:
428 DPRINTF_EDIT_MSG16("EM_GETSEL");
429 wParam = 0;
430 lParam = 0;
431 /* fall through */
432 case EM_GETSEL:
433 DPRINTF_EDIT_MSG32("EM_GETSEL");
434 result = EDIT_EM_GetSel(es, (LPUINT)wParam, (LPUINT)lParam);
435 break;
436
437 case EM_SETSEL16:
438 DPRINTF_EDIT_MSG16("EM_SETSEL");
439 if (SLOWORD(lParam) == -1)
440 EDIT_EM_SetSel(wnd, es, (UINT)-1, 0, FALSE);
441 else
442 EDIT_EM_SetSel(wnd, es, LOWORD(lParam), HIWORD(lParam), FALSE);
443 if (!wParam)
444 EDIT_EM_ScrollCaret(wnd, es);
445 result = 1;
446 break;
447 case EM_SETSEL:
448 DPRINTF_EDIT_MSG32("EM_SETSEL");
449 EDIT_EM_SetSel(wnd, es, wParam, lParam, FALSE);
450 EDIT_EM_ScrollCaret(wnd, es);
451 result = 1;
452 break;
453
454 case EM_GETRECT16:
455 DPRINTF_EDIT_MSG16("EM_GETRECT");
456 if (lParam)
457 CONV_RECT32TO16(&es->format_rect, MapSL(lParam));
458 break;
459 case EM_GETRECT:
460 DPRINTF_EDIT_MSG32("EM_GETRECT");
461 if (lParam)
462 CopyRect((LPRECT)lParam, &es->format_rect);
463 break;
464
465 case EM_SETRECT16:
466 DPRINTF_EDIT_MSG16("EM_SETRECT");
467 if ((es->style & ES_MULTILINE) && lParam) {
468 RECT rc;
469 CONV_RECT16TO32(MapSL(lParam), &rc);
470 EDIT_SetRectNP(wnd, es, &rc);
471 EDIT_UpdateText(wnd, NULL, TRUE);
472 }
473 break;
474 case EM_SETRECT:
475 DPRINTF_EDIT_MSG32("EM_SETRECT");
476 if ((es->style & ES_MULTILINE) && lParam) {
477 EDIT_SetRectNP(wnd, es, (LPRECT)lParam);
478 EDIT_UpdateText(wnd, NULL, TRUE);
479 }
480 break;
481
482 case EM_SETRECTNP16:
483 DPRINTF_EDIT_MSG16("EM_SETRECTNP");
484 if ((es->style & ES_MULTILINE) && lParam) {
485 RECT rc;
486 CONV_RECT16TO32(MapSL(lParam), &rc);
487 EDIT_SetRectNP(wnd, es, &rc);
488 }
489 break;
490 case EM_SETRECTNP:
491 DPRINTF_EDIT_MSG32("EM_SETRECTNP");
492 if ((es->style & ES_MULTILINE) && lParam)
493 EDIT_SetRectNP(wnd, es, (LPRECT)lParam);
494 break;
495
496 case EM_SCROLL16:
497 DPRINTF_EDIT_MSG16("EM_SCROLL");
498 /* fall through */
499 case EM_SCROLL:
500 DPRINTF_EDIT_MSG32("EM_SCROLL");
501 result = EDIT_EM_Scroll(wnd, es, (INT)wParam);
502 break;
503
504 case EM_LINESCROLL16:
505 DPRINTF_EDIT_MSG16("EM_LINESCROLL");
506 wParam = (WPARAM)(INT)SHIWORD(lParam);
507 lParam = (LPARAM)(INT)SLOWORD(lParam);
508 /* fall through */
509 case EM_LINESCROLL:
510 DPRINTF_EDIT_MSG32("EM_LINESCROLL");
511 result = (LRESULT)EDIT_EM_LineScroll(wnd, es, (INT)wParam, (INT)lParam);
512 break;
513
514 case EM_SCROLLCARET16:
515 DPRINTF_EDIT_MSG16("EM_SCROLLCARET");
516 /* fall through */
517 case EM_SCROLLCARET:
518 DPRINTF_EDIT_MSG32("EM_SCROLLCARET");
519 EDIT_EM_ScrollCaret(wnd, es);
520 result = 1;
521 break;
522
523 case EM_GETMODIFY16:
524 DPRINTF_EDIT_MSG16("EM_GETMODIFY");
525 /* fall through */
526 case EM_GETMODIFY:
527 DPRINTF_EDIT_MSG32("EM_GETMODIFY");
528 result = ((es->flags & EF_MODIFIED) != 0);
529 break;
530
531 case EM_SETMODIFY16:
532 DPRINTF_EDIT_MSG16("EM_SETMODIFY");
533 /* fall through */
534 case EM_SETMODIFY:
535 DPRINTF_EDIT_MSG32("EM_SETMODIFY");
536 if (wParam)
537 es->flags |= EF_MODIFIED;
538 else
539 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
540 break;
541
542 case EM_GETLINECOUNT16:
543 DPRINTF_EDIT_MSG16("EM_GETLINECOUNT");
544 /* fall through */
545 case EM_GETLINECOUNT:
546 DPRINTF_EDIT_MSG32("EM_GETLINECOUNT");
547 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
548 break;
549
550 case EM_LINEINDEX16:
551 DPRINTF_EDIT_MSG16("EM_LINEINDEX");
552 if ((INT16)wParam == -1)
553 wParam = (WPARAM)-1;
554 /* fall through */
555 case EM_LINEINDEX:
556 DPRINTF_EDIT_MSG32("EM_LINEINDEX");
557 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
558 break;
559
560 case EM_SETHANDLE16:
561 DPRINTF_EDIT_MSG16("EM_SETHANDLE");
562 EDIT_EM_SetHandle16(wnd, es, (HLOCAL16)wParam);
563 break;
564 case EM_SETHANDLE:
565 DPRINTF_EDIT_MSG32("EM_SETHANDLE");
566 EDIT_EM_SetHandle(wnd, es, (HLOCAL)wParam);
567 break;
568
569 case EM_GETHANDLE16:
570 DPRINTF_EDIT_MSG16("EM_GETHANDLE");
571 result = (LRESULT)EDIT_EM_GetHandle16(wnd, es);
572 break;
573 case EM_GETHANDLE:
574 DPRINTF_EDIT_MSG32("EM_GETHANDLE");
575 result = (LRESULT)EDIT_EM_GetHandle(es);
576 break;
577
578 case EM_GETTHUMB16:
579 DPRINTF_EDIT_MSG16("EM_GETTHUMB");
580 /* fall through */
581 case EM_GETTHUMB:
582 DPRINTF_EDIT_MSG32("EM_GETTHUMB");
583 result = EDIT_EM_GetThumb(wnd, es);
584 break;
585
586 /* messages 0x00bf and 0x00c0 missing from specs */
587
588 case WM_USER+15:
589 DPRINTF_EDIT_MSG16("undocumented WM_USER+15, please report");
590 /* fall through */
591 case 0x00bf:
592 DPRINTF_EDIT_MSG32("undocumented 0x00bf, please report");
593 if(unicode)
594 result = DefWindowProcW(wnd->hwndSelf, msg, wParam, lParam);
595 else
596 result = DefWindowProcA(wnd->hwndSelf, msg, wParam, lParam);
597 break;
598
599 case WM_USER+16:
600 DPRINTF_EDIT_MSG16("undocumented WM_USER+16, please report");
601 /* fall through */
602 case 0x00c0:
603 DPRINTF_EDIT_MSG32("undocumented 0x00c0, please report");
604 if(unicode)
605 result = DefWindowProcW(wnd->hwndSelf, msg, wParam, lParam);
606 else
607 result = DefWindowProcA(wnd->hwndSelf, msg, wParam, lParam);
608 break;
609
610 case EM_LINELENGTH16:
611 DPRINTF_EDIT_MSG16("EM_LINELENGTH");
612 /* fall through */
613 case EM_LINELENGTH:
614 DPRINTF_EDIT_MSG32("EM_LINELENGTH");
615 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
616 break;
617
618 case EM_REPLACESEL16:
619 DPRINTF_EDIT_MSG16("EM_REPLACESEL");
620 lParam = (LPARAM)MapSL(lParam);
621 unicode = FALSE; /* 16-bit message is always ascii */
622 /* fall through */
623 case EM_REPLACESEL:
624 {
625 LPWSTR textW;
626 DPRINTF_EDIT_MSG32("EM_REPLACESEL");
627
628 if(unicode)
629 textW = (LPWSTR)lParam;
630 else
631 {
632 LPSTR textA = (LPSTR)lParam;
633 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
634 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
635 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
636 }
637
638 EDIT_EM_ReplaceSel(wnd, es, (BOOL)wParam, textW, TRUE);
639 result = 1;
640
641 if(!unicode)
642 HeapFree(GetProcessHeap(), 0, textW);
643 break;
644 }
645 /* message 0x00c3 missing from specs */
646
647 case WM_USER+19:
648 DPRINTF_EDIT_MSG16("undocumented WM_USER+19, please report");
649 /* fall through */
650 case 0x00c3:
651 DPRINTF_EDIT_MSG32("undocumented 0x00c3, please report");
652 if(unicode)
653 result = DefWindowProcW(wnd->hwndSelf, msg, wParam, lParam);
654 else
655 result = DefWindowProcA(wnd->hwndSelf, msg, wParam, lParam);
656 break;
657
658 case EM_GETLINE16:
659 DPRINTF_EDIT_MSG16("EM_GETLINE");
660 lParam = (LPARAM)MapSL(lParam);
661 unicode = FALSE; /* 16-bit message is always ascii */
662 /* fall through */
663 case EM_GETLINE:
664 DPRINTF_EDIT_MSG32("EM_GETLINE");
665 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, lParam, unicode);
666 break;
667
668 case EM_LIMITTEXT16:
669 DPRINTF_EDIT_MSG16("EM_LIMITTEXT");
670 /* fall through */
671 case EM_SETLIMITTEXT:
672 DPRINTF_EDIT_MSG32("EM_SETLIMITTEXT");
673 EDIT_EM_SetLimitText(es, (INT)wParam);
674 break;
675
676 case EM_CANUNDO16:
677 DPRINTF_EDIT_MSG16("EM_CANUNDO");
678 /* fall through */
679 case EM_CANUNDO:
680 DPRINTF_EDIT_MSG32("EM_CANUNDO");
681 result = (LRESULT)EDIT_EM_CanUndo(es);
682 break;
683
684 case EM_UNDO16:
685 DPRINTF_EDIT_MSG16("EM_UNDO");
686 /* fall through */
687 case EM_UNDO:
688 /* fall through */
689 case WM_UNDO:
690 DPRINTF_EDIT_MSG32("EM_UNDO / WM_UNDO");
691 result = (LRESULT)EDIT_EM_Undo(wnd, es);
692 break;
693
694 case EM_FMTLINES16:
695 DPRINTF_EDIT_MSG16("EM_FMTLINES");
696 /* fall through */
697 case EM_FMTLINES:
698 DPRINTF_EDIT_MSG32("EM_FMTLINES");
699 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
700 break;
701
702 case EM_LINEFROMCHAR16:
703 DPRINTF_EDIT_MSG16("EM_LINEFROMCHAR");
704 /* fall through */
705 case EM_LINEFROMCHAR:
706 DPRINTF_EDIT_MSG32("EM_LINEFROMCHAR");
707 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
708 break;
709
710 /* message 0x00ca missing from specs */
711
712 case WM_USER+26:
713 DPRINTF_EDIT_MSG16("undocumented WM_USER+26, please report");
714 /* fall through */
715 case 0x00ca:
716 DPRINTF_EDIT_MSG32("undocumented 0x00ca, please report");
717 if(unicode)
718 result = DefWindowProcW(wnd->hwndSelf, msg, wParam, lParam);
719 else
720 result = DefWindowProcA(wnd->hwndSelf, msg, wParam, lParam);
721 break;
722
723 case EM_SETTABSTOPS16:
724 DPRINTF_EDIT_MSG16("EM_SETTABSTOPS");
725 result = (LRESULT)EDIT_EM_SetTabStops16(es, (INT)wParam, MapSL(lParam));
726 break;
727 case EM_SETTABSTOPS:
728 DPRINTF_EDIT_MSG32("EM_SETTABSTOPS");
729 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
730 break;
731
732 case EM_SETPASSWORDCHAR16:
733 DPRINTF_EDIT_MSG16("EM_SETPASSWORDCHAR");
734 unicode = FALSE; /* 16-bit message is always ascii */
735 /* fall through */
736 case EM_SETPASSWORDCHAR:
737 {
738 WCHAR charW = 0;
739 DPRINTF_EDIT_MSG32("EM_SETPASSWORDCHAR");
740
741 if(unicode)
742 charW = (WCHAR)wParam;
743 else
744 {
745 CHAR charA = wParam;
746 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
747 }
748
749 EDIT_EM_SetPasswordChar(wnd, es, charW);
750 break;
751 }
752
753 case EM_EMPTYUNDOBUFFER16:
754 DPRINTF_EDIT_MSG16("EM_EMPTYUNDOBUFFER");
755 /* fall through */
756 case EM_EMPTYUNDOBUFFER:
757 DPRINTF_EDIT_MSG32("EM_EMPTYUNDOBUFFER");
758 EDIT_EM_EmptyUndoBuffer(es);
759 break;
760
761 case EM_GETFIRSTVISIBLELINE16:
762 DPRINTF_EDIT_MSG16("EM_GETFIRSTVISIBLELINE");
763 result = es->y_offset;
764 break;
765 case EM_GETFIRSTVISIBLELINE:
766 DPRINTF_EDIT_MSG32("EM_GETFIRSTVISIBLELINE");
767 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
768 break;
769
770 case EM_SETREADONLY16:
771 DPRINTF_EDIT_MSG16("EM_SETREADONLY");
772 /* fall through */
773 case EM_SETREADONLY:
774 DPRINTF_EDIT_MSG32("EM_SETREADONLY");
775 if (wParam) {
776 wnd->dwStyle |= ES_READONLY;
777 es->style |= ES_READONLY;
778 } else {
779 wnd->dwStyle &= ~ES_READONLY;
780 es->style &= ~ES_READONLY;
781 }
782 result = 1;
783 break;
784
785 case EM_SETWORDBREAKPROC16:
786 DPRINTF_EDIT_MSG16("EM_SETWORDBREAKPROC");
787 EDIT_EM_SetWordBreakProc16(wnd, es, (EDITWORDBREAKPROC16)lParam);
788 break;
789 case EM_SETWORDBREAKPROC:
790 DPRINTF_EDIT_MSG32("EM_SETWORDBREAKPROC");
791 EDIT_EM_SetWordBreakProc(wnd, es, lParam);
792 break;
793
794 case EM_GETWORDBREAKPROC16:
795 DPRINTF_EDIT_MSG16("EM_GETWORDBREAKPROC");
796 result = (LRESULT)es->word_break_proc16;
797 break;
798 case EM_GETWORDBREAKPROC:
799 DPRINTF_EDIT_MSG32("EM_GETWORDBREAKPROC");
800 result = (LRESULT)es->word_break_proc;
801 break;
802
803 case EM_GETPASSWORDCHAR16:
804 DPRINTF_EDIT_MSG16("EM_GETPASSWORDCHAR");
805 unicode = FALSE; /* 16-bit message is always ascii */
806 /* fall through */
807 case EM_GETPASSWORDCHAR:
808 {
809 DPRINTF_EDIT_MSG32("EM_GETPASSWORDCHAR");
810
811 if(unicode)
812 result = es->password_char;
813 else
814 {
815 WCHAR charW = es->password_char;
816 CHAR charA = 0;
817 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
818 result = charA;
819 }
820 break;
821 }
822
823 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
824
825 case EM_SETMARGINS:
826 DPRINTF_EDIT_MSG32("EM_SETMARGINS");
827 EDIT_EM_SetMargins(es, (INT)wParam, SLOWORD(lParam), SHIWORD(lParam));
828 break;
829
830 case EM_GETMARGINS:
831 DPRINTF_EDIT_MSG32("EM_GETMARGINS");
832 result = MAKELONG(es->left_margin, es->right_margin);
833 break;
834
835 case EM_GETLIMITTEXT:
836 DPRINTF_EDIT_MSG32("EM_GETLIMITTEXT");
837 result = es->buffer_limit;
838 break;
839
840 case EM_POSFROMCHAR:
841 DPRINTF_EDIT_MSG32("EM_POSFROMCHAR");
842 result = EDIT_EM_PosFromChar(wnd, es, (INT)wParam, FALSE);
843 break;
844
845 case EM_CHARFROMPOS:
846 DPRINTF_EDIT_MSG32("EM_CHARFROMPOS");
847 result = EDIT_EM_CharFromPos(wnd, es, SLOWORD(lParam), SHIWORD(lParam));
848 break;
849
850 case WM_GETDLGCODE:
851 DPRINTF_EDIT_MSG32("WM_GETDLGCODE");
852 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
853
854 if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
855 {
856 int vk = (int)((LPMSG)lParam)->wParam;
857
858 if ((wnd->dwStyle & ES_WANTRETURN) && vk == VK_RETURN)
859 {
860 result |= DLGC_WANTMESSAGE;
861 }
862 else if (es->hwndListBox && (vk == VK_RETURN || vk == VK_ESCAPE))
863 {
864 if (SendMessageW(wnd->parent->hwndSelf, CB_GETDROPPEDSTATE, 0, 0))
865 result |= DLGC_WANTMESSAGE;
866 }
867 }
868 break;
869
870 case WM_CHAR:
871 {
872 WCHAR charW;
873 DPRINTF_EDIT_MSG32("WM_CHAR");
874
875 if(unicode)
876 charW = wParam;
877 else
878 {
879 CHAR charA = wParam;
880 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
881 }
882
883 if ((charW == VK_RETURN || charW == VK_ESCAPE) && es->hwndListBox)
884 {
885 if (SendMessageW(wnd->parent->hwndSelf, CB_GETDROPPEDSTATE, 0, 0))
886 SendMessageW(wnd->parent->hwndSelf, WM_KEYDOWN, charW, 0);
887 break;
888 }
889 EDIT_WM_Char(wnd, es, charW);
890 break;
891 }
892
893 case WM_CLEAR:
894 DPRINTF_EDIT_MSG32("WM_CLEAR");
895 EDIT_WM_Clear(wnd, es);
896 break;
897
898 case WM_COMMAND:
899 DPRINTF_EDIT_MSG32("WM_COMMAND");
900 EDIT_WM_Command(wnd, es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
901 break;
902
903 case WM_CONTEXTMENU:
904 DPRINTF_EDIT_MSG32("WM_CONTEXTMENU");
905 EDIT_WM_ContextMenu(wnd, es, SLOWORD(lParam), SHIWORD(lParam));
906 break;
907
908 case WM_COPY:
909 DPRINTF_EDIT_MSG32("WM_COPY");
910 EDIT_WM_Copy(wnd, es);
911 break;
912
913 case WM_CREATE:
914 DPRINTF_EDIT_MSG32("WM_CREATE");
915 if(unicode)
916 result = EDIT_WM_Create(wnd, es, ((LPCREATESTRUCTW)lParam)->lpszName);
917 else
918 {
919 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
920 LPWSTR nameW = NULL;
921 if(nameA)
922 {
923 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
924 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
925 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
926 }
927 result = EDIT_WM_Create(wnd, es, nameW);
928 if(nameW)
929 HeapFree(GetProcessHeap(), 0, nameW);
930 }
931 break;
932
933 case WM_CUT:
934 DPRINTF_EDIT_MSG32("WM_CUT");
935 EDIT_WM_Cut(wnd, es);
936 break;
937
938 case WM_ENABLE:
939 DPRINTF_EDIT_MSG32("WM_ENABLE");
940 es->bEnableState = (BOOL) wParam;
941 EDIT_UpdateText(wnd, NULL, TRUE);
942 break;
943
944 case WM_ERASEBKGND:
945 DPRINTF_EDIT_MSG32("WM_ERASEBKGND");
946 result = EDIT_WM_EraseBkGnd(wnd, es, (HDC)wParam);
947 break;
948
949 case WM_GETFONT:
950 DPRINTF_EDIT_MSG32("WM_GETFONT");
951 result = (LRESULT)es->font;
952 break;
953
954 case WM_GETTEXT:
955 DPRINTF_EDIT_MSG32("WM_GETTEXT");
956 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, lParam, unicode);
957 break;
958
959 case WM_GETTEXTLENGTH:
960 DPRINTF_EDIT_MSG32("WM_GETTEXTLENGTH");
961 result = strlenW(es->text);
962 break;
963
964 case WM_HSCROLL:
965 DPRINTF_EDIT_MSG32("WM_HSCROLL");
966 result = EDIT_WM_HScroll(wnd, es, LOWORD(wParam), SHIWORD(wParam));
967 break;
968
969 case WM_KEYDOWN:
970 DPRINTF_EDIT_MSG32("WM_KEYDOWN");
971 result = EDIT_WM_KeyDown(wnd, es, (INT)wParam);
972 break;
973
974 case WM_KILLFOCUS:
975 DPRINTF_EDIT_MSG32("WM_KILLFOCUS");
976 result = EDIT_WM_KillFocus(wnd, es);
977 break;
978
979 case WM_LBUTTONDBLCLK:
980 DPRINTF_EDIT_MSG32("WM_LBUTTONDBLCLK");
981 result = EDIT_WM_LButtonDblClk(wnd, es);
982 break;
983
984 case WM_LBUTTONDOWN:
985 DPRINTF_EDIT_MSG32("WM_LBUTTONDOWN");
986 result = EDIT_WM_LButtonDown(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
987 break;
988
989 case WM_LBUTTONUP:
990 DPRINTF_EDIT_MSG32("WM_LBUTTONUP");
991 result = EDIT_WM_LButtonUp(wnd->hwndSelf, es);
992 break;
993
994 case WM_MBUTTONDOWN:
995 DPRINTF_EDIT_MSG32("WM_MBUTTONDOWN");
996 result = EDIT_WM_MButtonDown(wnd);
997 break;
998
999 case WM_MOUSEACTIVATE:
1000 /*
1001 * FIXME: maybe DefWindowProc() screws up, but it seems that
1002 * modeless dialog boxes need this. If we don't do this, the focus
1003 * will _not_ be set by DefWindowProc() for edit controls in a
1004 * modeless dialog box ???
1005 */
1006 DPRINTF_EDIT_MSG32("WM_MOUSEACTIVATE");
1007 SetFocus(wnd->hwndSelf);
1008 result = MA_ACTIVATE;
1009 break;
1010
1011 case WM_MOUSEMOVE:
1012 /*
1013 * DPRINTF_EDIT_MSG32("WM_MOUSEMOVE");
1014 */
1015 result = EDIT_WM_MouseMove(wnd, es, SLOWORD(lParam), SHIWORD(lParam));
1016 break;
1017
1018 case WM_PAINT:
1019 DPRINTF_EDIT_MSG32("WM_PAINT");
1020 EDIT_WM_Paint(wnd, es, wParam);
1021 break;
1022
1023 case WM_PASTE:
1024 DPRINTF_EDIT_MSG32("WM_PASTE");
1025 EDIT_WM_Paste(wnd, es);
1026 break;
1027
1028 case WM_SETFOCUS:
1029 DPRINTF_EDIT_MSG32("WM_SETFOCUS");
1030 EDIT_WM_SetFocus(wnd, es);
1031 break;
1032
1033 case WM_SETFONT:
1034 DPRINTF_EDIT_MSG32("WM_SETFONT");
1035 EDIT_WM_SetFont(wnd, es, (HFONT)wParam, LOWORD(lParam) != 0);
1036 break;
1037
1038 case WM_SETREDRAW:
1039 /* FIXME: actually set an internal flag and behave accordingly */
1040 break;
1041
1042 case WM_SETTEXT:
1043 DPRINTF_EDIT_MSG32("WM_SETTEXT");
1044 EDIT_WM_SetText(wnd, es, lParam, unicode);
1045 result = TRUE;
1046 break;
1047
1048 case WM_SIZE:
1049 DPRINTF_EDIT_MSG32("WM_SIZE");
1050 EDIT_WM_Size(wnd, es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
1051 break;
1052
1053 case WM_SYSKEYDOWN:
1054 DPRINTF_EDIT_MSG32("WM_SYSKEYDOWN");
1055 result = EDIT_WM_SysKeyDown(wnd, es, (INT)wParam, (DWORD)lParam);
1056 break;
1057
1058 case WM_TIMER:
1059 DPRINTF_EDIT_MSG32("WM_TIMER");
1060 EDIT_WM_Timer(wnd, es);
1061 break;
1062
1063 case WM_VSCROLL:
1064 DPRINTF_EDIT_MSG32("WM_VSCROLL");
1065 result = EDIT_WM_VScroll(wnd, es, LOWORD(wParam), SHIWORD(wParam));
1066 break;
1067
1068 case WM_MOUSEWHEEL:
1069 {
1070 int gcWheelDelta = 0;
1071 UINT pulScrollLines = 3;
1072 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
1073
1074 if (wParam & (MK_SHIFT | MK_CONTROL)) {
1075 if(unicode)
1076 result = DefWindowProcW(wnd->hwndSelf, msg, wParam, lParam);
1077 else
1078 result = DefWindowProcA(wnd->hwndSelf, msg, wParam, lParam);
1079 break;
1080 }
1081 gcWheelDelta -= SHIWORD(wParam);
1082 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
1083 {
1084 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
1085 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
1086 result = EDIT_EM_LineScroll(wnd, es, 0, cLineScroll);
1087 }
1088 }
1089 break;
1090 default:
1091 if(unicode)
1092 result = DefWindowProcW(wnd->hwndSelf, msg, wParam, lParam);
1093 else
1094 result = DefWindowProcA(wnd->hwndSelf, msg, wParam, lParam);
1095 break;
1096 }
1097 EDIT_UnlockBuffer(wnd, es, FALSE);
1098 END:
1099 return result;
1100 }
1101
1102 /*********************************************************************
1103 *
1104 * EditWndProcW (USER32.@)
1105 */
1106 LRESULT WINAPI EditWndProcW(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1107 {
1108 LRESULT res;
1109 WND *wndPtr = WIN_FindWndPtr(hWnd);
1110
1111 res = EditWndProc_locked(wndPtr, uMsg, wParam, lParam, TRUE);
1112
1113 WIN_ReleaseWndPtr(wndPtr);
1114 return res;
1115 }
1116
1117 /*********************************************************************
1118 *
1119 * EditWndProcA (USER32.@)
1120 */
1121 LRESULT WINAPI EditWndProcA(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1122 {
1123 LRESULT res;
1124 WND *wndPtr = WIN_FindWndPtr(hWnd);
1125
1126 res = EditWndProc_locked(wndPtr, uMsg, wParam, lParam, FALSE);
1127
1128 WIN_ReleaseWndPtr(wndPtr);
1129 return res;
1130 }
1131
1132 /*********************************************************************
1133 *
1134 * EDIT_BuildLineDefs_ML
1135 *
1136 * Build linked list of text lines.
1137 * Lines can end with '\0' (last line), a character (if it is wrapped),
1138 * a soft return '\r\r\n' or a hard return '\r\n'
1139 *
1140 */
1141 static void EDIT_BuildLineDefs_ML(WND *wnd, EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
1142 {
1143 HDC dc;
1144 HFONT old_font = 0;
1145 LPWSTR current_position, cp;
1146 INT fw;
1147 LINEDEF *current_line;
1148 LINEDEF *previous_line;
1149 LINEDEF *start_line;
1150 INT line_index = 0, nstart_line = 0, nstart_index = 0;
1151 INT line_count = es->line_count;
1152 INT orig_net_length;
1153 RECT rc;
1154
1155 if (istart == iend && delta == 0)
1156 return;
1157
1158 dc = GetDC(wnd->hwndSelf);
1159 if (es->font)
1160 old_font = SelectObject(dc, es->font);
1161
1162 previous_line = NULL;
1163 current_line = es->first_line_def;
1164
1165 /* Find starting line. istart must lie inside an existing line or
1166 * at the end of buffer */
1167 do {
1168 if (istart < current_line->index + current_line->length ||
1169 current_line->ending == END_0)
1170 break;
1171
1172 previous_line = current_line;
1173 current_line = current_line->next;
1174 line_index++;
1175 } while (current_line);
1176
1177 if (!current_line) /* Error occurred start is not inside previous buffer */
1178 {
1179 FIXME(" modification occurred outside buffer\n");
1180 return;
1181 }
1182
1183 /* Remember start of modifications in order to calculate update region */
1184 nstart_line = line_index;
1185 nstart_index = current_line->index;
1186
1187 /* We must start to reformat from the previous line since the modifications
1188 * may have caused the line to wrap upwards. */
1189 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
1190 {
1191 line_index--;
1192 current_line = previous_line;
1193 }
1194 start_line = current_line;
1195
1196 fw = es->format_rect.right - es->format_rect.left;
1197 current_position = es->text + current_line->index;
1198 do {
1199 if (current_line != start_line)
1200 {
1201 if (!current_line || current_line->index + delta > current_position - es->text)
1202 {
1203 /* The buffer has been expanded, create a new line and
1204 insert it into the link list */
1205 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
1206 new_line->next = previous_line->next;
1207 previous_line->next = new_line;
1208 current_line = new_line;
1209 es->line_count++;
1210 }
1211 else if (current_line->index + delta < current_position - es->text)
1212 {
1213 /* The previous line merged with this line so we delete this extra entry */
1214 previous_line->next = current_line->next;
1215 HeapFree(GetProcessHeap(), 0, current_line);
1216 current_line = previous_line->next;
1217 es->line_count--;
1218 continue;
1219 }
1220 else /* current_line->index + delta == current_position */
1221 {
1222 if (current_position - es->text > iend)
1223 break; /* We reached end of line modifications */
1224 /* else recalulate this line */
1225 }
1226 }
1227
1228 current_line->index = current_position - es->text;
1229 orig_net_length = current_line->net_length;
1230
1231 /* Find end of line */
1232 cp = current_position;
1233 while (*cp) {
1234 if ((*cp == '\r') && (*(cp + 1) == '\n'))
1235 break;
1236 cp++;
1237 }
1238
1239 /* Mark type of line termination */
1240 if (!(*cp)) {
1241 current_line->ending = END_0;
1242 current_line->net_length = strlenW(current_position);
1243 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
1244 current_line->ending = END_SOFT;
1245 current_line->net_length = cp - current_position - 1;
1246 } else {
1247 current_line->ending = END_HARD;
1248 current_line->net_length = cp - current_position;
1249 }
1250
1251 /* Calculate line width */
1252 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1253 current_position, current_line->net_length,
1254 es->tabs_count, es->tabs));
1255
1256 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
1257 if ((!(es->style & ES_AUTOHSCROLL)) && (current_line->width > fw)) {
1258 INT next = 0;
1259 INT prev;
1260 do {
1261 prev = next;
1262 next = EDIT_CallWordBreakProc(es, current_position - es->text,
1263 prev + 1, current_line->net_length, WB_RIGHT);
1264 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1265 current_position, next, es->tabs_count, es->tabs));
1266 } while (current_line->width <= fw);
1267 if (!prev) { /* Didn't find a line break so force a break */
1268 next = 0;
1269 do {
1270 prev = next;
1271 next++;
1272 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
1273 current_position, next, es->tabs_count, es->tabs));
1274 } while (current_line->width <= fw);
1275 if (!prev)
1276 prev = 1;
1277 }
1278
1279 /* If the first line we are calculating, wrapped before istart, we must
1280 * adjust istart in order for this to be reflected in the update region. */
1281 if (current_line->index == nstart_index && istart > current_line->index + prev)
1282 istart = current_line->index + prev;
1283 /* else if we are updating the previous line before the first line we
1284 * are re-caulculating and it expanded */
1285 else if (current_line == start_line &&
1286 current_line->index != nstart_index && orig_net_length < prev)
1287 {
1288 /* Line expanded due to an upwards line wrap so we must partially include
1289 * previous line in update region */
1290 nstart_line = line_index;
1291 nstart_index = current_line->index;
1292 istart = current_line->index + orig_net_length;
1293 }
1294
1295 current_line->net_length = prev;
1296 current_line->ending = END_WRAP;
1297 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
1298 current_line->net_length, es->tabs_count, es->tabs));
1299 }
1300
1301
1302 /* Adjust length to include line termination */
1303 switch (current_line->ending) {
1304 case END_SOFT:
1305 current_line->length = current_line->net_length + 3;
1306 break;
1307 case END_HARD:
1308 current_line->length = current_line->net_length + 2;
1309 break;
1310 case END_WRAP:
1311 case END_0:
1312 current_line->length = current_line->net_length;
1313 break;
1314 }
1315 es->text_width = max(es->text_width, current_line->width);
1316 current_position += current_line->length;
1317 previous_line = current_line;
1318 current_line = current_line->next;
1319 line_index++;
1320 } while (previous_line->ending != END_0);
1321
1322 /* Finish adjusting line index's by delta or remove hanging lines */
1323 if (previous_line->ending == END_0)
1324 {
1325 LINEDEF *pnext = NULL;
1326
1327 previous_line->next = NULL;
1328 while (current_line)
1329 {
1330 pnext = current_line->next;
1331 HeapFree(GetProcessHeap(), 0, current_line);
1332 current_line = pnext;
1333 es->line_count--;
1334 }
1335 }
1336 else
1337 {
1338 while (current_line)
1339 {
1340 current_line->index += delta;
1341 current_line = current_line->next;
1342 }
1343 }
1344
1345 /* Calculate rest of modification rectangle */
1346 if (hrgn)
1347 {
1348 HRGN tmphrgn;
1349 /*
1350 * We calculate two rectangles. One for the first line which may have
1351 * an indent with respect to the format rect. The other is a format-width
1352 * rectangle that spans the rest of the lines that changed or moved.
1353 */
1354 rc.top = es->format_rect.top + nstart_line * es->line_height -
1355 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1356 rc.bottom = rc.top + es->line_height;
1357 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
1358 es->text + nstart_index, istart - nstart_index,
1359 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
1360 rc.right = es->format_rect.right;
1361 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
1362
1363 rc.top = rc.bottom;
1364 rc.left = es->format_rect.left;
1365 rc.right = es->format_rect.right;
1366 /*
1367 * If lines were added or removed we must re-paint the remainder of the
1368 * lines since the remaining lines were either shifted up or down.
1369 */
1370 if (line_count < es->line_count) /* We added lines */
1371 rc.bottom = es->line_count * es->line_height;
1372 else if (line_count > es->line_count) /* We removed lines */
1373 rc.bottom = line_count * es->line_height;
1374 else
1375 rc.bottom = line_index * es->line_height;
1376 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
1377 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
1378 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
1379 DeleteObject(tmphrgn);
1380 }
1381
1382 if (es->font)
1383 SelectObject(dc, old_font);
1384
1385 ReleaseDC(wnd->hwndSelf, dc);
1386 }
1387
1388 /*********************************************************************
1389 *
1390 * EDIT_CalcLineWidth_SL
1391 *
1392 */
1393 static void EDIT_CalcLineWidth_SL(WND *wnd, EDITSTATE *es)
1394 {
1395 es->text_width = SLOWORD(EDIT_EM_PosFromChar(wnd, es, strlenW(es->text), FALSE));
1396 }
1397
1398 /*********************************************************************
1399 *
1400 * EDIT_CallWordBreakProc
1401 *
1402 * Call appropriate WordBreakProc (internal or external).
1403 *
1404 * Note: The "start" argument should always be an index refering
1405 * to es->text. The actual wordbreak proc might be
1406 * 16 bit, so we can't always pass any 32 bit LPSTR.
1407 * Hence we assume that es->text is the buffer that holds
1408 * the string under examination (we can decide this for ourselves).
1409 *
1410 */
1411 /* ### start build ### */
1412 extern WORD CALLBACK EDIT_CallTo16_word_lwww(EDITWORDBREAKPROC16,SEGPTR,WORD,WORD,WORD);
1413 /* ### stop build ### */
1414 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
1415 {
1416 INT ret, iWndsLocks;
1417
1418 /* To avoid any deadlocks, all the locks on the windows structures
1419 must be suspended before the control is passed to the application */
1420 iWndsLocks = WIN_SuspendWndsLock();
1421
1422 if (es->word_break_proc16) {
1423 HGLOBAL16 hglob16;
1424 SEGPTR segptr;
1425 INT countA;
1426
1427 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1428 hglob16 = GlobalAlloc16(GMEM_MOVEABLE | GMEM_ZEROINIT, countA);
1429 segptr = K32WOWGlobalLock16(hglob16);
1430 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, MapSL(segptr), countA, NULL, NULL);
1431 ret = (INT)EDIT_CallTo16_word_lwww(es->word_break_proc16,
1432 segptr, index, countA, action);
1433 GlobalUnlock16(hglob16);
1434 GlobalFree16(hglob16);
1435 }
1436 else if (es->word_break_proc)
1437 {
1438 if(es->is_unicode)
1439 {
1440 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
1441
1442 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1443 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
1444 ret = wbpW(es->text + start, index, count, action);
1445 }
1446 else
1447 {
1448 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
1449 INT countA;
1450 CHAR *textA;
1451
1452 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
1453 textA = HeapAlloc(GetProcessHeap(), 0, countA);
1454 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
1455 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
1456 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
1457 ret = wbpA(textA, index, countA, action);
1458 HeapFree(GetProcessHeap(), 0, textA);
1459 }
1460 }
1461 else
1462 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
1463
1464 WIN_RestoreWndsLock(iWndsLocks);
1465 return ret;
1466 }
1467
1468
1469 /*********************************************************************
1470 *
1471 * EDIT_CharFromPos
1472 *
1473 * Beware: This is not the function called on EM_CHARFROMPOS
1474 * The position _can_ be outside the formatting / client
1475 * rectangle
1476 * The return value is only the character index
1477 *
1478 */
1479 static INT EDIT_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
1480 {
1481 INT index;
1482 HDC dc;
1483 HFONT old_font = 0;
1484
1485 if (es->style & ES_MULTILINE) {
1486 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1487 INT line_index = 0;
1488 LINEDEF *line_def = es->first_line_def;
1489 INT low, high;
1490 while ((line > 0) && line_def->next) {
1491 line_index += line_def->length;
1492 line_def = line_def->next;
1493 line--;
1494 }
1495 x += es->x_offset - es->format_rect.left;
1496 if (x >= line_def->width) {
1497 if (after_wrap)
1498 *after_wrap = (line_def->ending == END_WRAP);
1499 return line_index + line_def->net_length;
1500 }
1501 if (x <= 0) {
1502 if (after_wrap)
1503 *after_wrap = FALSE;
1504 return line_index;
1505 }
1506 dc = GetDC(wnd->hwndSelf);
1507 if (es->font)
1508 old_font = SelectObject(dc, es->font);
1509 low = line_index + 1;
1510 high = line_index + line_def->net_length + 1;
1511 while (low < high - 1)
1512 {
1513 INT mid = (low + high) / 2;
1514 if (LOWORD(GetTabbedTextExtentW(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1515 else low = mid;
1516 }
1517 index = low;
1518
1519 if (after_wrap)
1520 *after_wrap = ((index == line_index + line_def->net_length) &&
1521 (line_def->ending == END_WRAP));
1522 } else {
1523 LPWSTR text;
1524 SIZE size;
1525 if (after_wrap)
1526 *after_wrap = FALSE;
1527 x -= es->format_rect.left;
1528 if (!x)
1529 return es->x_offset;
1530 text = EDIT_GetPasswordPointer_SL(es);
1531 dc = GetDC(wnd->hwndSelf);
1532 if (es->font)
1533 old_font = SelectObject(dc, es->font);
1534 if (x < 0)
1535 {
1536 INT low = 0;
1537 INT high = es->x_offset;
1538 while (low < high - 1)
1539 {
1540 INT mid = (low + high) / 2;
1541 GetTextExtentPoint32W( dc, text + mid,
1542 es->x_offset - mid, &size );
1543 if (size.cx > -x) low = mid;
1544 else high = mid;
1545 }
1546 index = low;
1547 }
1548 else
1549 {
1550 INT low = es->x_offset;
1551 INT high = strlenW(es->text) + 1;
1552 while (low < high - 1)
1553 {
1554 INT mid = (low + high) / 2;
1555 GetTextExtentPoint32W( dc, text + es->x_offset,
1556 mid - es->x_offset, &size );
1557 if (size.cx > x) high = mid;
1558 else low = mid;
1559 }
1560 index = low;
1561 }
1562 if (es->style & ES_PASSWORD)
1563 HeapFree(GetProcessHeap(), 0, text);
1564 }
1565 if (es->font)
1566 SelectObject(dc, old_font);
1567 ReleaseDC(wnd->hwndSelf, dc);
1568 return index;
1569 }
1570
1571
1572 /*********************************************************************
1573 *
1574 * EDIT_ConfinePoint
1575 *
1576 * adjusts the point to be within the formatting rectangle
1577 * (so CharFromPos returns the nearest _visible_ character)
1578 *
1579 */
1580 static void EDIT_ConfinePoint(EDITSTATE *es, LPINT x, LPINT y)
1581 {
1582 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
1583 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
1584 }
1585
1586
1587 /*********************************************************************
1588 *
1589 * EDIT_GetLineRect
1590 *
1591 * Calculates the bounding rectangle for a line from a starting
1592 * column to an ending column.
1593 *
1594 */
1595 static void EDIT_GetLineRect(WND *wnd, EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1596 {
1597 INT line_index = EDIT_EM_LineIndex(es, line);
1598
1599 if (es->style & ES_MULTILINE)
1600 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1601 else
1602 rc->top = es->format_rect.top;
1603 rc->bottom = rc->top + es->line_height;
1604 rc->left = (scol == 0) ? es->format_rect.left : SLOWORD(EDIT_EM_PosFromChar(wnd, es, line_index + scol, TRUE));
1605 rc->right = (ecol == -1) ? es->format_rect.right : SLOWORD(EDIT_EM_PosFromChar(wnd, es, line_index + ecol, TRUE));
1606 }
1607
1608
1609 /*********************************************************************
1610 *
1611 * EDIT_GetPasswordPointer_SL
1612 *
1613 * note: caller should free the (optionally) allocated buffer
1614 *
1615 */
1616 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
1617 {
1618 if (es->style & ES_PASSWORD) {
1619 INT len = strlenW(es->text);
1620 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
1621 text[len] = '\0';
1622 while(len) text[--len] = es->password_char;
1623 return text;
1624 } else
1625 return es->text;
1626 }
1627
1628
1629 /*********************************************************************
1630 *
1631 * EDIT_LockBuffer
1632 *
1633 * This acts as a LOCAL_Lock(), but it locks only once. This way
1634 * you can call it whenever you like, without unlocking.
1635 *
1636 */
1637 static void EDIT_LockBuffer(WND *wnd, EDITSTATE *es)
1638 {
1639 if (!es) {
1640 ERR("no EDITSTATE ... please report\n");
1641 return;
1642 }
1643 if (!es->text) {
1644 CHAR *textA = NULL;
1645 UINT countA = 0;
1646 BOOL _16bit = FALSE;
1647
1648 if(es->hloc32W)
1649 {
1650 if(es->hloc32A)
1651 {
1652 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1653 textA = LocalLock(es->hloc32A);
1654 countA = strlen(textA) + 1;
1655 }
1656 else if(es->hloc16)
1657 {
1658 TRACE("Synchronizing with 16-bit ANSI buffer\n");
1659 textA = LOCAL_Lock(wnd->hInstance, es->hloc16);
1660 countA = strlen(textA) + 1;
1661 _16bit = TRUE;
1662 }
1663 }
1664 else {
1665 ERR("no buffer ... please report\n");
1666 return;
1667 }
1668
1669 if(textA)
1670 {
1671 HLOCAL hloc32W_new;
1672 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
1673 TRACE("%d bytes translated to %d WCHARs\n", countA, countW_new);
1674 if(countW_new > es->buffer_size + 1)
1675 {
1676 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1677 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1678 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1679 if(hloc32W_new)
1680 {
1681 es->hloc32W = hloc32W_new;
1682 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1683 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1684 }
1685 else
1686 WARN("FAILED! Will synchronize partially\n");
1687 }
1688 }
1689
1690 /*TRACE("Locking 32-bit UNICODE buffer\n");*/
1691 es->text = LocalLock(es->hloc32W);
1692
1693 if(textA)
1694 {
1695 MultiByteToWideChar(CP_ACP, 0, textA, countA, es->text, es->buffer_size + 1);
1696 if(_16bit)
1697 LOCAL_Unlock(wnd->hInstance, es->hloc16);
1698 else
1699 LocalUnlock(es->hloc32A);
1700 }
1701 }
1702 es->lock_count++;
1703 }
1704
1705
1706 /*********************************************************************
1707 *
1708 * EDIT_SL_InvalidateText
1709 *
1710 * Called from EDIT_InvalidateText().
1711 * Does the job for single-line controls only.
1712 *
1713 */
1714 static void EDIT_SL_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end)
1715 {
1716 RECT line_rect;
1717 RECT rc;
1718
1719 EDIT_GetLineRect(wnd, es, 0, start, end, &line_rect);
1720 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1721 EDIT_UpdateText(wnd, &rc, FALSE);
1722 }
1723
1724
1725 /*********************************************************************
1726 *
1727 * EDIT_ML_InvalidateText
1728 *
1729 * Called from EDIT_InvalidateText().
1730 * Does the job for multi-line controls only.
1731 *
1732 */
1733 static void EDIT_ML_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end)
1734 {
1735 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1736 INT sl = EDIT_EM_LineFromChar(es, start);
1737 INT el = EDIT_EM_LineFromChar(es, end);
1738 INT sc;
1739 INT ec;
1740 RECT rc1;
1741 RECT rcWnd;
1742 RECT rcLine;
1743 RECT rcUpdate;
1744 INT l;
1745
1746 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1747 return;
1748
1749 sc = start - EDIT_EM_LineIndex(es, sl);
1750 ec = end - EDIT_EM_LineIndex(es, el);
1751 if (sl < es->y_offset) {
1752 sl = es->y_offset;
1753 sc = 0;
1754 }
1755 if (el > es->y_offset + vlc) {
1756 el = es->y_offset + vlc;
1757 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1758 }
1759 GetClientRect(wnd->hwndSelf, &rc1);
1760 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1761 if (sl == el) {
1762 EDIT_GetLineRect(wnd, es, sl, sc, ec, &rcLine);
1763 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1764 EDIT_UpdateText(wnd, &rcUpdate, FALSE);
1765 } else {
1766 EDIT_GetLineRect(wnd, es, sl, sc,
1767 EDIT_EM_LineLength(es,
1768 EDIT_EM_LineIndex(es, sl)),
1769 &rcLine);
1770 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1771 EDIT_UpdateText(wnd, &rcUpdate, FALSE);
1772 for (l = sl + 1 ; l < el ; l++) {
1773 EDIT_GetLineRect(wnd, es, l, 0,
1774 EDIT_EM_LineLength(es,
1775 EDIT_EM_LineIndex(es, l)),
1776 &rcLine);
1777 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1778 EDIT_UpdateText(wnd, &rcUpdate, FALSE);
1779 }
1780 EDIT_GetLineRect(wnd, es, el, 0, ec, &rcLine);
1781 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1782 EDIT_UpdateText(wnd, &rcUpdate, FALSE);
1783 }
1784 }
1785
1786
1787 /*********************************************************************
1788 *
1789 * EDIT_InvalidateText
1790 *
1791 * Invalidate the text from offset start upto, but not including,
1792 * offset end. Useful for (re)painting the selection.
1793 * Regions outside the linewidth are not invalidated.
1794 * end == -1 means end == TextLength.
1795 * start and end need not be ordered.
1796 *
1797 */
1798 static void EDIT_InvalidateText(WND *wnd, EDITSTATE *es, INT start, INT end)
1799 {
1800 if (end == start)
1801 return;
1802
1803 if (end == -1)
1804 end = strlenW(es->text);
1805
1806 ORDER_INT(start, end);
1807
1808 if (es->style & ES_MULTILINE)
1809 EDIT_ML_InvalidateText(wnd, es, start, end);
1810 else
1811 EDIT_SL_InvalidateText(wnd, es, start, end);
1812 }
1813
1814
1815 /*********************************************************************
1816 *
1817 * EDIT_MakeFit
1818 *
1819 * Try to fit size + 1 characters in the buffer. Constrain to limits.
1820 *
1821 */
1822 static BOOL EDIT_MakeFit(WND *wnd, EDITSTATE *es, UINT size)
1823 {
1824 HLOCAL hNew32W;
1825
1826 if (size <= es->buffer_size)
1827 return TRUE;
1828 if (size > es->buffer_limit) {
1829 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT, "EN_MAXTEXT");
1830 return FALSE;
1831 }
1832 if (size > es->buffer_limit)
1833 size = es->buffer_limit;
1834
1835 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1836
1837 /* Force edit to unlock it's buffer. es->text now NULL */
1838 EDIT_UnlockBuffer(wnd, es, TRUE);
1839
1840 if (es->hloc32W) {
1841 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1842 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1843 TRACE("Old 32 bit handle %08x, new handle %08x\n", es->hloc32W, hNew32W);
1844 es->hloc32W = hNew32W;
1845 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1846 }
1847 }
1848
1849 EDIT_LockBuffer(wnd, es);
1850
1851 if (es->buffer_size < size) {
1852 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1853 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE, "EN_ERRSPACE");
1854 return FALSE;
1855 } else {
1856 TRACE("We now have %d+1\n", es->buffer_size);
1857 return TRUE;
1858 }
1859 }
1860
1861
1862 /*********************************************************************
1863 *
1864 * EDIT_MakeUndoFit
1865 *
1866 * Try to fit size + 1 bytes in the undo buffer.
1867 *
1868 */
1869 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1870 {
1871 UINT alloc_size;
1872
1873 if (size <= es->undo_buffer_size)
1874 return TRUE;
1875
1876 TRACE("trying to ReAlloc to %d+1\n", size);
1877
1878 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1879 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1880 es->undo_buffer_size = alloc_size/sizeof(WCHAR);
1881 return TRUE;
1882 }
1883 else
1884 {
1885 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1886 return FALSE;
1887 }
1888 }
1889
1890
1891 /*********************************************************************
1892 *
1893 * EDIT_MoveBackward
1894 *
1895 */
1896 static void EDIT_MoveBackward(WND *wnd, EDITSTATE *es, BOOL extend)
1897 {
1898 INT e = es->selection_end;
1899
1900 if (e) {
1901 e--;
1902 if ((es->style & ES_MULTILINE) && e &&
1903 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1904 e--;
1905 if (e && (es->text[e - 1] == '\r'))
1906 e--;
1907 }
1908 }
1909 EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
1910 EDIT_EM_ScrollCaret(wnd, es);
1911 }
1912
1913
1914 /*********************************************************************
1915 *
1916 * EDIT_MoveDown_ML
1917 *
1918 * Only for multi line controls
1919 * Move the caret one line down, on a column with the nearest
1920 * x coordinate on the screen (might be a different column).
1921 *
1922 */
1923 static void EDIT_MoveDown_ML(WND *wnd, EDITSTATE *es, BOOL extend)
1924 {
1925 INT s = es->selection_start;
1926 INT e = es->selection_end;
1927 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1928 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
1929 INT x = SLOWORD(pos);
1930 INT y = SHIWORD(pos);
1931
1932 e = EDIT_CharFromPos(wnd, es, x, y + es->line_height, &after_wrap);
1933 if (!extend)
1934 s = e;
1935 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
1936 EDIT_EM_ScrollCaret(wnd, es);
1937 }
1938
1939
1940 /*********************************************************************
1941 *
1942 * EDIT_MoveEnd
1943 *
1944 */
1945 static void EDIT_MoveEnd(WND *wnd, EDITSTATE *es, BOOL extend)
1946 {
1947 BOOL after_wrap = FALSE;
1948 INT e;
1949
1950 /* Pass a high value in x to make sure of receiving the end of the line */
1951 if (es->style & ES_MULTILINE)
1952 e = EDIT_CharFromPos(wnd, es, 0x3fffffff,
1953 HIWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1954 else
1955 e = strlenW(es->text);
1956 EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, after_wrap);
1957 EDIT_EM_ScrollCaret(wnd, es);
1958 }
1959
1960
1961 /*********************************************************************
1962 *
1963 * EDIT_MoveForward
1964 *
1965 */
1966 static void EDIT_MoveForward(WND *wnd, EDITSTATE *es, BOOL extend)
1967 {
1968 INT e = es->selection_end;
1969
1970 if (es->text[e]) {
1971 e++;
1972 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1973 if (es->text[e] == '\n')
1974 e++;
1975 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1976 e += 2;
1977 }
1978 }
1979 EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
1980 EDIT_EM_ScrollCaret(wnd, es);
1981 }
1982
1983
1984 /*********************************************************************
1985 *
1986 * EDIT_MoveHome
1987 *
1988 * Home key: move to beginning of line.
1989 *
1990 */
1991 static void EDIT_MoveHome(WND *wnd, EDITSTATE *es, BOOL extend)
1992 {
1993 INT e;
1994
1995 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1996 if (es->style & ES_MULTILINE)
1997 e = EDIT_CharFromPos(wnd, es, -es->x_offset,
1998 HIWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1999 else
2000 e = 0;
2001 EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
2002 EDIT_EM_ScrollCaret(wnd, es);
2003 }
2004
2005
2006 /*********************************************************************
2007 *
2008 * EDIT_MovePageDown_ML
2009 *
2010 * Only for multi line controls
2011 * Move the caret one page down, on a column with the nearest
2012 * x coordinate on the screen (might be a different column).
2013 *
2014 */
2015 static void EDIT_MovePageDown_ML(WND *wnd, EDITSTATE *es, BOOL extend)
2016 {
2017 INT s = es->selection_start;
2018 INT e = es->selection_end;
2019 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2020 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
2021 INT x = SLOWORD(pos);
2022 INT y = SHIWORD(pos);
2023
2024 e = EDIT_CharFromPos(wnd, es, x,
2025 y + (es->format_rect.bottom - es->format_rect.top),
2026 &after_wrap);
2027 if (!extend)
2028 s = e;
2029 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
2030 EDIT_EM_ScrollCaret(wnd, es);
2031 }
2032
2033
2034 /*********************************************************************
2035 *
2036 * EDIT_MovePageUp_ML
2037 *
2038 * Only for multi line controls
2039 * Move the caret one page up, on a column with the nearest
2040 * x coordinate on the screen (might be a different column).
2041 *
2042 */
2043 static void EDIT_MovePageUp_ML(WND *wnd, EDITSTATE *es, BOOL extend)
2044 {
2045 INT s = es->selection_start;
2046 INT e = es->selection_end;
2047 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2048 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
2049 INT x = SLOWORD(pos);
2050 INT y = SHIWORD(pos);
2051
2052 e = EDIT_CharFromPos(wnd, es, x,
2053 y - (es->format_rect.bottom - es->format_rect.top),
2054 &after_wrap);
2055 if (!extend)
2056 s = e;
2057 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
2058 EDIT_EM_ScrollCaret(wnd, es);
2059 }
2060
2061
2062 /*********************************************************************
2063 *
2064 * EDIT_MoveUp_ML
2065 *
2066 * Only for multi line controls
2067 * Move the caret one line up, on a column with the nearest
2068 * x coordinate on the screen (might be a different column).
2069 *
2070 */
2071 static void EDIT_MoveUp_ML(WND *wnd, EDITSTATE *es, BOOL extend)
2072 {
2073 INT s = es->selection_start;
2074 INT e = es->selection_end;
2075 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
2076 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
2077 INT x = SLOWORD(pos);
2078 INT y = SHIWORD(pos);
2079
2080 e = EDIT_CharFromPos(wnd, es, x, y - es->line_height, &after_wrap);
2081 if (!extend)
2082 s = e;
2083 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
2084 EDIT_EM_ScrollCaret(wnd, es);
2085 }
2086
2087
2088 /*********************************************************************
2089 *
2090 * EDIT_MoveWordBackward
2091 *
2092 */
2093 static void EDIT_MoveWordBackward(WND *wnd, EDITSTATE *es, BOOL extend)
2094 {
2095 INT s = es->selection_start;
2096 INT e = es->selection_end;
2097 INT l;
2098 INT ll;
2099 INT li;
2100
2101 l = EDIT_EM_LineFromChar(es, e);
2102 ll = EDIT_EM_LineLength(es, e);
2103 li = EDIT_EM_LineIndex(es, l);
2104 if (e - li == 0) {
2105 if (l) {
2106 li = EDIT_EM_LineIndex(es, l - 1);
2107 e = li + EDIT_EM_LineLength(es, li);
2108 }
2109 } else {
2110 e = li + (INT)EDIT_CallWordBreakProc(es,
2111 li, e - li, ll, WB_LEFT);
2112 }
2113 if (!extend)
2114 s = e;
2115 EDIT_EM_SetSel(wnd, es, s, e, FALSE);
2116 EDIT_EM_ScrollCaret(wnd, es);
2117 }
2118
2119
2120 /*********************************************************************
2121 *
2122 * EDIT_MoveWordForward
2123 *
2124 */
2125 static void EDIT_MoveWordForward(WND *wnd, EDITSTATE *es, BOOL extend)
2126 {
2127 INT s = es->selection_start;
2128 INT e = es->selection_end;
2129 INT l;
2130 INT ll;
2131 INT li;
2132
2133 l = EDIT_EM_LineFromChar(es, e);
2134 ll = EDIT_EM_LineLength(es, e);
2135 li = EDIT_EM_LineIndex(es, l);
2136 if (e - li == ll) {
2137 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
2138 e = EDIT_EM_LineIndex(es, l + 1);
2139 } else {
2140 e = li + EDIT_CallWordBreakProc(es,
2141 li, e - li + 1, ll, WB_RIGHT);
2142 }
2143 if (!extend)
2144 s = e;
2145 EDIT_EM_SetSel(wnd, es, s, e, FALSE);
2146 EDIT_EM_ScrollCaret(wnd, es);
2147 }
2148
2149
2150 /*********************************************************************
2151 *
2152 * EDIT_PaintLine
2153 *
2154 */
2155 static void EDIT_PaintLine(WND *wnd, EDITSTATE *es, HDC dc, INT line, BOOL rev)
2156 {
2157 INT s = es->selection_start;
2158 INT e = es->selection_end;
2159 INT li;
2160 INT ll;
2161 INT x;
2162 INT y;
2163 LRESULT pos;
2164
2165 if (es->style & ES_MULTILINE) {
2166 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2167 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2168 return;
2169 } else if (line)
2170 return;
2171
2172 TRACE("line=%d\n", line);
2173
2174 pos = EDIT_EM_PosFromChar(wnd, es, EDIT_EM_LineIndex(es, line), FALSE);
2175 x = SLOWORD(pos);
2176 y = SHIWORD(pos);
2177 li = EDIT_EM_LineIndex(es, line);
2178 ll = EDIT_EM_LineLength(es, li);
2179 s = es->selection_start;
2180 e = es->selection_end;
2181 ORDER_INT(s, e);
2182 s = min(li + ll, max(li, s));
2183 e = min(li + ll, max(li, e));
2184 if (rev && (s != e) &&
2185 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2186 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2187 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2188 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2189 } else
2190 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2191 }
2192
2193
2194 /*********************************************************************
2195 *
2196 * EDIT_PaintText
2197 *
2198 */
2199 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2200 {
2201 COLORREF BkColor;
2202 COLORREF TextColor;
2203 INT ret;
2204 INT li;
2205 INT BkMode;
2206 SIZE size;
2207
2208 if (!count)
2209 return 0;
2210 BkMode = GetBkMode(dc);
2211 BkColor = GetBkColor(dc);
2212 TextColor = GetTextColor(dc);
2213 if (rev) {
2214 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2215 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2216 SetBkMode( dc, OPAQUE);
2217 }
2218 li = EDIT_EM_LineIndex(es, line);
2219 if (es->style & ES_MULTILINE) {
2220 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2221 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2222 } else {
2223 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2224 TextOutW(dc, x, y, text + li + col, count);
2225 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2226 ret = size.cx;
2227 if (es->style & ES_PASSWORD)
2228 HeapFree(GetProcessHeap(), 0, text);
2229 }
2230 if (rev) {
2231 SetBkColor(dc, BkColor);
2232 SetTextColor(dc, TextColor);
2233 SetBkMode( dc, BkMode);
2234 }
2235 return ret;
2236 }
2237
2238
2239 /*********************************************************************
2240 *
2241 * EDIT_SetCaretPos
2242 *
2243 */
2244 static void EDIT_SetCaretPos(WND *wnd, EDITSTATE *es, INT pos,
2245 BOOL after_wrap)
2246 {
2247 LRESULT res = EDIT_EM_PosFromChar(wnd, es, pos, after_wrap);
2248 SetCaretPos(SLOWORD(res), SHIWORD(res));
2249 }
2250
2251
2252 /*********************************************************************
2253 *
2254 * EDIT_SetRectNP
2255 *
2256 * note: this is not (exactly) the handler called on EM_SETRECTNP
2257 * it is also used to set the rect of a single line control
2258 *
2259 */
2260 static void EDIT_SetRectNP(WND *wnd, EDITSTATE *es, LPRECT rc)
2261 {
2262 CopyRect(&es->format_rect, rc);
2263 if (es->style & WS_BORDER) {
2264 INT bw = GetSystemMetrics(SM_CXBORDER) + 1;
2265 if(TWEAK_WineLook == WIN31_LOOK)
2266 bw += 2;
2267 es->format_rect.left += bw;
2268 es->format_rect.top += bw;
2269 es->format_rect.right -= bw;
2270 es->format_rect.bottom -= bw;
2271 }
2272 es->format_rect.left += es->left_margin;
2273 es->format_rect.right -= es->right_margin;
2274 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2275 if (es->style & ES_MULTILINE)
2276 {
2277 INT fw, vlc, max_x_offset, max_y_offset;
2278
2279 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2280 es->format_rect.bottom = es->format_rect.top + max(1, vlc) * es->line_height;
2281
2282 /* correct es->x_offset */
2283 fw = es->format_rect.right - es->format_rect.left;
2284 max_x_offset = es->text_width - fw;
2285 if(max_x_offset < 0) max_x_offset = 0;
2286 if(es->x_offset > max_x_offset)
2287 es->x_offset = max_x_offset;
2288
2289 /* correct es->y_offset */
2290 max_y_offset = es->line_count - vlc;
2291 if(max_y_offset < 0) max_y_offset = 0;
2292 if(es->y_offset > max_y_offset)
2293 es->y_offset = max_y_offset;
2294
2295 /* force scroll info update */
2296 EDIT_UpdateScrollInfo(wnd, es);
2297 }
2298 else
2299 /* Windows doesn't care to fix text placement for SL controls */
2300 es->format_rect.bottom = es->format_rect.top + es->line_height;
2301
2302 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2303 EDIT_BuildLineDefs_ML(wnd, es, 0, strlenW(es->text), 0, (HRGN)0);
2304 }
2305
2306
2307 /*********************************************************************
2308 *
2309 * EDIT_UnlockBuffer
2310 *
2311 */
2312 static void EDIT_UnlockBuffer(WND *wnd, EDITSTATE *es, BOOL force)
2313 {
2314 /* Edit window might be already destroyed */
2315 if(!IsWindow(wnd->hwndSelf))
2316 {
2317 WARN("edit wnd %04x already destroyed\n", wnd->hwndSelf);
2318 return;
2319 }
2320
2321 if (!es) {
2322 ERR("no EDITSTATE ... please report\n");
2323 return;
2324 }
2325 if (!es->lock_count) {
2326 ERR("lock_count == 0 ... please report\n");
2327 return;
2328 }
2329 if (!es->text) {
2330 ERR("es->text == 0 ... please report\n");
2331 return;
2332 }
2333
2334 if (force || (es->lock_count == 1)) {
2335 if (es->hloc32W) {
2336 CHAR *textA = NULL;
2337 BOOL _16bit = FALSE;
2338 UINT countA = 0;
2339 UINT countW = strlenW(es->text) + 1;
2340
2341 if(es->hloc32A)
2342 {
2343 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2344 TRACE("Synchronizing with 32-bit ANSI buffer\n");
2345 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2346 countA = LocalSize(es->hloc32A);
2347 if(countA_new > countA)
2348 {
2349 HLOCAL hloc32A_new;
2350 UINT alloc_size = ROUND_TO_GROW(countA_new);
2351 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2352 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2353 if(hloc32A_new)
2354 {
2355 es->hloc32A = hloc32A_new;
2356 countA = LocalSize(hloc32A_new);
2357 TRACE("Real new size %d bytes\n", countA);
2358 }
2359 else
2360 WARN("FAILED! Will synchronize partially\n");
2361 }
2362 textA = LocalLock(es->hloc32A);
2363 }
2364 else if(es->hloc16)
2365 {
2366 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
2367 TRACE("Synchronizing with 16-bit ANSI buffer\n");
2368 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
2369 countA = LOCAL_Size(wnd->hInstance, es->hloc16);
2370 if(countA_new > countA)
2371 {
2372 HLOCAL16 hloc16_new;
2373 UINT alloc_size = ROUND_TO_GROW(countA_new);
2374 TRACE("Resizing 16-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
2375 hloc16_new = LOCAL_ReAlloc(wnd->hInstance, es->hloc16, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
2376 if(hloc16_new)
2377 {
2378 es->hloc16 = hloc16_new;
2379 countA = LOCAL_Size(wnd->hInstance, hloc16_new);
2380 TRACE("Real new size %d bytes\n", countA);
2381 }
2382 else
2383 WARN("FAILED! Will synchronize partially\n");
2384 }
2385 textA = LOCAL_Lock(wnd->hInstance, es->hloc16);
2386 _16bit = TRUE;
2387 }
2388
2389 if(textA)
2390 {
2391 WideCharToMultiByte(CP_ACP, 0, es->text, countW, textA, countA, NULL, NULL);
2392 if(_16bit)
2393 LOCAL_Unlock(wnd->hInstance, es->hloc16);
2394 else
2395 LocalUnlock(es->hloc32A);
2396 }
2397
2398 LocalUnlock(es->hloc32W);
2399 es->text = NULL;
2400 }
2401 else {
2402 ERR("no buffer ... please report\n");
2403 return;
2404 }
2405 }
2406 es->lock_count--;
2407 }
2408
2409
2410 /*********************************************************************
2411 *
2412 * EDIT_UpdateScrollInfo
2413 *
2414 */
2415 static void EDIT_UpdateScrollInfo(WND *wnd, EDITSTATE *es)
2416 {
2417 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
2418 {
2419 SCROLLINFO si;
2420 si.cbSize = sizeof(SCROLLINFO);
2421 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2422 si.nMin = 0;
2423 si.nMax = es->line_count - 1;
2424 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2425 si.nPos = es->y_offset;
2426 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2427 si.nMin, si.nMax, si.nPage, si.nPos);
2428 SetScrollInfo(wnd->hwndSelf, SB_VERT, &si, TRUE);
2429 }
2430
2431 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
2432 {
2433 SCROLLINFO si;
2434 si.cbSize = sizeof(SCROLLINFO);
2435 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
2436 si.nMin = 0;
2437 si.nMax = es->text_width - 1;
2438 si.nPage = es->format_rect.right - es->format_rect.left;
2439 si.nPos = es->x_offset;
2440 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
2441 si.nMin, si.nMax, si.nPage, si.nPos);
2442 SetScrollInfo(wnd->hwndSelf, SB_HORZ, &si, TRUE);
2443 }
2444 }
2445
2446 /*********************************************************************
2447 *
2448 * EDIT_WordBreakProc
2449 *
2450 * Find the beginning of words.
2451 * Note: unlike the specs for a WordBreakProc, this function only
2452 * allows to be called without linebreaks between s[0] upto
2453 * s[count - 1]. Remember it is only called
2454 * internally, so we can decide this for ourselves.
2455 *
2456 */
2457 static INT CALLBACK EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
2458 {
2459 INT ret = 0;
2460
2461 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
2462
2463 if(!s) return 0;
2464
2465 switch (action) {
2466 case WB_LEFT:
2467 if (!count)
2468 break;
2469 if (index)
2470 index--;
2471 if (s[index] == ' ') {
2472 while (index && (s[index] == ' '))
2473 index--;
2474 if (index) {
2475 while (index && (s[index] != ' '))
2476 index--;
2477 if (s[index] == ' ')
2478 index++;
2479 }
2480 } else {
2481 while (index && (s[index] != ' '))
2482 index--;
2483 if (s[index] == ' ')
2484 index++;
2485 }
2486 ret = index;
2487 break;
2488 case WB_RIGHT:
2489 if (!count)
2490 break;
2491 if (index)
2492 index--;
2493 if (s[index] == ' ')
2494 while ((index < count) && (s[index] == ' ')) index++;
2495 else {
2496 while (s[index] && (s[index] != ' ') && (index < count))
2497 index++;
2498 while ((s[index] == ' ') && (index < count)) index++;
2499 }
2500 ret = index;
2501 break;
2502 case WB_ISDELIMITER:
2503 ret = (s[index] == ' ');
2504 break;
2505 default:
2506 ERR("unknown action code, please report !\n");
2507 break;
2508 }
2509 return ret;
2510 }
2511
2512
2513 /*********************************************************************
2514 *
2515 * EM_CHARFROMPOS
2516 *
2517 * returns line number (not index) in high-order word of result.
2518 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2519 * to Richedit, not to the edit control. Original documentation is valid.
2520 * FIXME: do the specs mean to return -1 if outside client area or
2521 * if outside formatting rectangle ???
2522 *
2523 */
2524 static LRESULT EDIT_EM_CharFromPos(WND *wnd, EDITSTATE *es, INT x, INT y)
2525 {
2526 POINT pt;
2527 RECT rc;
2528 INT index;
2529
2530 pt.x = x;
2531 pt.y = y;
2532 GetClientRect(wnd->hwndSelf, &rc);
2533 if (!PtInRect(&rc, pt))
2534 return -1;
2535
2536 index = EDIT_CharFromPos(wnd, es, x, y, NULL);
2537 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2538 }
2539
2540
2541 /*********************************************************************
2542 *
2543 * EM_FMTLINES
2544 *
2545 * Enable or disable soft breaks.
2546 */
2547 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2548 {
2549 es->flags &= ~EF_USE_SOFTBRK;
2550 if (add_eol) {
2551 es->flags |= EF_USE_SOFTBRK;
2552 FIXME("soft break enabled, not implemented\n");
2553 }
2554 return add_eol;
2555 }
2556
2557
2558 /*********************************************************************
2559 *
2560 * EM_GETHANDLE
2561 *
2562 * Hopefully this won't fire back at us.
2563 * We always start with a fixed buffer in the local heap.
2564 * Despite of the documentation says that the local heap is used
2565 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2566 * buffer on the local heap.
2567 *
2568 */
2569 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2570 {
2571 HLOCAL hLocal;
2572
2573 if (!(es->style & ES_MULTILINE))
2574 return 0;
2575
2576 if(es->is_unicode)
2577 hLocal = es->hloc32W;
2578 else
2579 {
2580 if(!es->hloc32A)
2581 {
2582 CHAR *textA;
2583 UINT countA, alloc_size;
2584 TRACE("Allocating 32-bit ANSI alias buffer\n");
2585 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2586 alloc_size = ROUND_TO_GROW(countA);
2587 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2588 {
2589 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2590 return 0;
2591 }
2592 textA = LocalLock(es->hloc32A);
2593 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2594 LocalUnlock(es->hloc32A);
2595 }
2596 hLocal = es->hloc32A;
2597 }
2598
2599 TRACE("Returning %04X, LocalSize() = %d\n", hLocal, LocalSize(hLocal));
2600 return hLocal;
2601 }
2602
2603
2604 /*********************************************************************
2605 *
2606 * EM_GETHANDLE16
2607 *
2608 * Hopefully this won't fire back at us.
2609 * We always start with a buffer in 32 bit linear memory.
2610 * However, with this message a 16 bit application requests
2611 * a handle of 16 bit local heap memory, where it expects to find
2612 * the text.
2613 * It's a pitty that from this moment on we have to use this
2614 * local heap, because applications may rely on the handle
2615 * in the future.
2616 *
2617 * In this function we'll try to switch to local heap.
2618 */
2619 static HLOCAL16 EDIT_EM_GetHandle16(WND *wnd, EDITSTATE *es)
2620 {
2621 CHAR *textA;
2622 UINT countA, alloc_size;
2623
2624 if (!(es->style & ES_MULTILINE))
2625 return 0;
2626
2627 if (es->hloc16)
2628 return es->hloc16;
2629
2630 if (!LOCAL_HeapSize(wnd->hInstance)) {
2631 if (!LocalInit16(wnd->hInstance, 0,
2632 GlobalSize16(wnd->hInstance))) {
2633 ERR("could not initialize local heap\n");
2634 return 0;
2635 }
2636 TRACE("local heap initialized\n");
2637 }
2638
2639 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2640 alloc_size = ROUND_TO_GROW(countA);
2641
2642 TRACE("Allocating 16-bit ANSI alias buffer\n");
2643 if (!(es->hloc16 = LOCAL_Alloc(wnd->hInstance, LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size))) {
2644 ERR("could not allocate new 16 bit buffer\n");
2645 return 0;
2646 }
2647
2648 if (!(textA = (LPSTR)LOCAL_Lock(wnd->hInstance, es->hloc16))) {
2649 ERR("could not lock new 16 bit buffer\n");
2650 LOCAL_Free(wnd->hInstance, es->hloc16);
2651 es->hloc16 = 0;
2652 return 0;
2653 }
2654
2655 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2656 LOCAL_Unlock(wnd->hInstance, es->hloc16);
2657
2658 TRACE("Returning %04X, LocalSize() = %d\n", es->hloc16, LOCAL_Size(wnd->hInstance, es->hloc16));
2659 return es->hloc16;
2660 }
2661
2662
2663 /*********************************************************************
2664 *
2665 * EM_GETLINE
2666 *
2667 */
2668 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPARAM lParam, BOOL unicode)
2669 {
2670 LPWSTR src;
2671 INT line_len, dst_len;
2672 INT i;
2673
2674 if (es->style & ES_MULTILINE) {
2675 if (line >= es->line_count)
2676 return 0;
2677 } else
2678 line = 0;
2679 i = EDIT_EM_LineIndex(es, line);
2680 src = es->text + i;
2681 line_len = EDIT_EM_LineLength(es, i);
2682 dst_len = *(WORD *)lParam;
2683 if(unicode)
2684 {
2685 LPWSTR dst = (LPWSTR)lParam;
2686 if(dst_len <= line_len)
2687 {
2688 memcpy(dst, src, dst_len * sizeof(WCHAR));
2689 return dst_len;
2690 }
2691 else /* Append 0 if enough space */
2692 {
2693 memcpy(dst, src, line_len * sizeof(WCHAR));
2694 dst[line_len] = 0;
2695 return line_len;
2696 }
2697 }
2698 else
2699 {
2700 LPSTR dst = (LPSTR)lParam;
2701 INT ret;
2702 ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, dst, dst_len, NULL, NULL);
2703 if(!ret) /* Insufficient buffer size */
2704 return dst_len;
2705 if(ret < dst_len) /* Append 0 if enough space */
2706 dst[ret] = 0;
2707 return ret;
2708 }
2709 }
2710
2711
2712 /*********************************************************************
2713 *
2714 * EM_GETSEL
2715 *
2716 */
2717 static LRESULT EDIT_EM_GetSel(EDITSTATE *es, LPUINT start, LPUINT end)
2718 {
2719 UINT s = es->selection_start;
2720 UINT e = es->selection_end;
2721
2722 ORDER_UINT(s, e);
2723 if (start)
2724 *start = s;
2725 if (end)
2726 *end = e;
2727 return MAKELONG(s, e);
2728 }
2729
2730
2731 /*********************************************************************
2732 *
2733 * EM_GETTHUMB
2734 *
2735 * FIXME: is this right ? (or should it be only VSCROLL)
2736 * (and maybe only for edit controls that really have their
2737 * own scrollbars) (and maybe only for multiline controls ?)
2738 * All in all: very poorly documented
2739 *
2740 */
2741 static LRESULT EDIT_EM_GetThumb(WND *wnd, EDITSTATE *es)
2742 {
2743 return MAKELONG(EDIT_WM_VScroll(wnd, es, EM_GETTHUMB16, 0),
2744 EDIT_WM_HScroll(wnd, es, EM_GETTHUMB16, 0));
2745 }
2746
2747
2748 /*********************************************************************
2749 *
2750 * EM_LINEFROMCHAR
2751 *
2752 */
2753 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
2754 {
2755 INT line;
2756 LINEDEF *line_def;
2757
2758 if (!(es->style & ES_MULTILINE))
2759 return 0;
2760 if (index > (INT)strlenW(es->text))
2761 return es->line_count - 1;
2762 if (index == -1)
2763 index = min(es->selection_start, es->selection_end);
2764
2765 line = 0;
2766 line_def = es->first_line_def;
2767 index -= line_def->length;
2768 while ((index >= 0) && line_def->next) {
2769 line++;
2770 line_def = line_def->next;
2771 index -= line_def->length;
2772 }
2773 return line;
2774 }
2775
2776
2777 /*********************************************************************
2778 *
2779 * EM_LINEINDEX
2780 *
2781 */
2782 static INT EDIT_EM_LineIndex(EDITSTATE *es, INT line)
2783 {
2784 INT line_index;
2785 LINEDEF *line_def;
2786
2787 if (!(es->style & ES_MULTILINE))
2788 return 0;
2789 if (line >= es->line_count)
2790 return -1;
2791
2792 line_index = 0;
2793 line_def = es->first_line_def;
2794 if (line == -1) {
2795 INT index = es->selection_end - line_def->length;
2796 while ((index >= 0) && line_def->next) {
2797 line_index += line_def->length;
2798 line_def = line_def->next;
2799 index -= line_def->length;
2800 }
2801 } else {
2802 while (line > 0) {
2803 line_index += line_def->length;
2804 line_def = line_def->next;
2805 line--;
2806 }
2807 }
2808 return line_index;
2809 }
2810
2811
2812 /*********************************************************************
2813 *
2814 * EM_LINELENGTH
2815 *
2816 */
2817 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
2818 {
2819 LINEDEF *line_def;
2820
2821 if (!(es->style & ES_MULTILINE))
2822 return strlenW(es->text);
2823
2824 if (index == -1) {
2825 /* get the number of remaining non-selected chars of selected lines */
2826 INT32 li;
2827 INT32 count;
2828 li = EDIT_EM_LineFromChar(es, es->selection_start);
2829 /* # chars before start of selection area */
2830 count = es->selection_start - EDIT_EM_LineIndex(es, li);
2831 li = EDIT_EM_LineFromChar(es, es->selection_end);
2832 /* # chars after end of selection */
2833 count += EDIT_EM_LineIndex(es, li) +
2834 EDIT_EM_LineLength(es, li) - es->selection_end;
2835 return count;
2836 }
2837 line_def = es->first_line_def;
2838 index -= line_def->length;
2839 while ((index >= 0) && line_def->next) {
2840 line_def = line_def->next;
2841 index -= line_def->length;
2842 }
2843 return line_def->net_length;
2844 }
2845
2846
2847 /*********************************************************************
2848 *
2849 * EM_LINESCROLL
2850 *
2851 * NOTE: dx is in average character widths, dy - in lines;
2852 *
2853 */
2854 static BOOL EDIT_EM_LineScroll(WND *wnd, EDITSTATE *es, INT dx, INT dy)
2855 {
2856 if (!(es->style & ES_MULTILINE))
2857 return FALSE;
2858
2859 dx *= es->char_width;
2860 return EDIT_EM_LineScroll_internal(wnd, es, dx, dy);
2861 }
2862
2863 /*********************************************************************
2864 *
2865 * EDIT_EM_LineScroll_internal
2866 *
2867 * Version of EDIT_EM_LineScroll for internal use.
2868 * It doesn't refuse if ES_MULTILINE is set and assumes that
2869 * dx is in pixels, dy - in lines.
2870 *
2871 */
2872 static BOOL EDIT_EM_LineScroll_internal(WND *wnd, EDITSTATE *es, INT dx, INT dy)
2873 {
2874 INT nyoff;
2875 INT x_offset_in_pixels;
2876
2877 if (es->style & ES_MULTILINE)
2878 {
2879 x_offset_in_pixels = es->x_offset;
2880 }
2881 else
2882 {
2883 dy = 0;
2884 x_offset_in_pixels = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->x_offset, FALSE));
2885 }
2886
2887 if (-dx > x_offset_in_pixels)
2888 dx = -x_offset_in_pixels;
2889 if (dx > es->text_width - x_offset_in_pixels)
2890 dx = es->text_width - x_offset_in_pixels;
2891 nyoff = max(0, es->y_offset + dy);
2892 if (nyoff >= es->line_count)
2893 nyoff = es->line_count - 1;
2894 dy = (es->y_offset - nyoff) * es->line_height;
2895 if (dx || dy) {
2896 RECT rc1;
2897 RECT rc;
2898
2899 es->y_offset = nyoff;
2900 if(es->style & ES_MULTILINE)
2901 es->x_offset += dx;
2902 else
2903 es->x_offset += dx / es->char_width;
2904
2905 GetClientRect(wnd->hwndSelf, &rc1);
2906 IntersectRect(&rc, &rc1, &es->format_rect);
2907 ScrollWindowEx(wnd->hwndSelf, -dx, dy,
2908 NULL, &rc, (HRGN)NULL, NULL, SW_INVALIDATE);
2909 /* force scroll info update */
2910 EDIT_UpdateScrollInfo(wnd, es);
2911 }
2912 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2913 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
2914 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2915 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
2916 return TRUE;
2917 }
2918
2919
2920 /*********************************************************************
2921 *
2922 * EM_POSFROMCHAR
2923 *
2924 */
2925 static LRESULT EDIT_EM_PosFromChar(WND *wnd, EDITSTATE *es, INT index, BOOL after_wrap)
2926 {
2927 INT len = strlenW(es->text);
2928 INT l;
2929 INT li;
2930 INT x;
2931 INT y = 0;
2932 HDC dc;
2933 HFONT old_font = 0;
2934 SIZE size;
2935
2936 index = min(index, len);
2937 dc = GetDC(wnd->hwndSelf);
2938 if (es->font)
2939 old_font = SelectObject(dc, es->font);
2940 if (es->style & ES_MULTILINE) {
2941 l = EDIT_EM_LineFromChar(es, index);
2942 y = (l - es->y_offset) * es->line_height;
2943 li = EDIT_EM_LineIndex(es, l);
2944 if (after_wrap && (li == index) && l) {
2945 INT l2 = l - 1;
2946 LINEDEF *line_def = es->first_line_def;
2947 while (l2) {
2948 line_def = line_def->next;
2949 l2--;
2950 }
2951 if (line_def->ending == END_WRAP) {
2952 l--;
2953 y -= es->line_height;
2954 li = EDIT_EM_LineIndex(es, l);
2955 }
2956 }
2957 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
2958 es->tabs_count, es->tabs)) - es->x_offset;
2959 } else {
2960 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2961 if (index < es->x_offset) {
2962 GetTextExtentPoint32W(dc, text + index,
2963 es->x_offset - index, &size);
2964 x = -size.cx;
2965 } else {
2966 GetTextExtentPoint32W(dc, text + es->x_offset,
2967 index - es->x_offset, &size);
2968 x = size.cx;
2969 }
2970 y = 0;
2971 if (es->style & ES_PASSWORD)
2972 HeapFree(GetProcessHeap(), 0, text);
2973 }
2974 x += es->format_rect.left;
2975 y += es->format_rect.top;
2976 if (es->font)
2977 SelectObject(dc, old_font);
2978 ReleaseDC(wnd->hwndSelf, dc);
2979 return MAKELONG((INT16)x, (INT16)y);
2980 }
2981
2982
2983 /*********************************************************************
2984 *
2985 * EM_REPLACESEL
2986 *
2987 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2988 *
2989 */
2990 static void EDIT_EM_ReplaceSel(WND *wnd, EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update)
2991 {
2992 UINT strl = strlenW(lpsz_replace);
2993 UINT tl = strlenW(es->text);
2994 UINT utl;
2995 UINT s;
2996 UINT e;
2997 UINT i;
2998 LPWSTR p;
2999 HRGN hrgn = 0;
3000
3001 TRACE("%s, can_undo %d, send_update %d\n",
3002 debugstr_w(lpsz_replace), can_undo, send_update);
3003
3004 s = es->selection_start;
3005 e = es->selection_end;
3006
3007 if ((s == e) && !strl)
3008 return;
3009
3010 ORDER_UINT(s, e);
3011
3012 if (!EDIT_MakeFit(wnd, es, tl - (e - s) + strl))
3013 return;
3014
3015 if (e != s) {
3016 /* there is something to be deleted */
3017 if (can_undo) {
3018 utl = strlenW(es->undo_text);
3019 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
3020 /* undo-buffer is extended to the right */
3021 EDIT_MakeUndoFit(es, utl + e - s);
3022 strncpyW(es->undo_text + utl, es->text + s, e - s + 1);
3023 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
3024 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
3025 /* undo-buffer is extended to the left */
3026 EDIT_MakeUndoFit(es, utl + e - s);
3027 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
3028 p[e - s] = p[0];
3029 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
3030 p[i] = (es->text + s)[i];
3031 es->undo_position = s;
3032 } else {
3033 /* new undo-buffer */
3034 EDIT_MakeUndoFit(es, e - s);
3035 strncpyW(es->undo_text, es->text + s, e - s + 1);
3036 es->undo_text[e - s] = 0; /* ensure 0 termination */
3037 es->undo_position = s;
3038 }
3039 /* any deletion makes the old insertion-undo invalid */
3040 es->undo_insert_count = 0;
3041 } else
3042 EDIT_EM_EmptyUndoBuffer(es);
3043
3044 /* now delete */
3045 strcpyW(es->text + s, es->text + e);
3046 }
3047 if (strl) {
3048 /* there is an insertion */
3049 if (can_undo) {
3050 if ((s == es->undo_position) ||
3051 ((es->undo_insert_count) &&
3052 (s == es->undo_position + es->undo_insert_count)))
3053 /*
3054 * insertion is new and at delete position or
3055 * an extension to either left or right
3056 */
3057 es->undo_insert_count += strl;
3058 else {
3059 /* new insertion undo */
3060 es->undo_position = s;
3061 es->undo_insert_count = strl;
3062 /* new insertion makes old delete-buffer invalid */
3063 *es->undo_text = '\0';
3064 }
3065 } else
3066 EDIT_EM_EmptyUndoBuffer(es);
3067
3068 /* now insert */
3069 tl = strlenW(es->text);
3070 for (p = es->text + tl ; p >= es->text + s ; p--)
3071 p[strl] = p[0];
3072 for (i = 0 , p = es->text + s ; i < strl ; i++)
3073 p[i] = lpsz_replace[i];
3074 if(es->style & ES_UPPERCASE)
3075 CharUpperBuffW(p, strl);
3076 else if(es->style & ES_LOWERCASE)
3077 CharLowerBuffW(p, strl);
3078 s += strl;
3079 }
3080 if (es->style & ES_MULTILINE)
3081 {
3082 INT s = min(es->selection_start, es->selection_end);
3083
3084 hrgn = CreateRectRgn(0, 0, 0, 0);
3085 EDIT_BuildLineDefs_ML(wnd, es, s, s + strl,
3086 strl - (es->selection_end - es->selection_start), hrgn);
3087 }
3088 else
3089 EDIT_CalcLineWidth_SL(wnd, es);
3090
3091 EDIT_EM_SetSel(wnd, es, s, s, FALSE);
3092 es->flags |= EF_MODIFIED;
3093 if (send_update) es->flags |= EF_UPDATE;
3094 EDIT_EM_ScrollCaret(wnd, es);
3095
3096 /* force scroll info update */
3097 EDIT_UpdateScrollInfo(wnd, es);
3098
3099 if (hrgn)
3100 {
3101 EDIT_UpdateTextRegion(wnd, hrgn, TRUE);
3102 DeleteObject(hrgn);
3103 }
3104 else
3105 EDIT_UpdateText(wnd, NULL, TRUE);
3106
3107 if(es->flags & EF_UPDATE)
3108 {
3109 es->flags &= ~EF_UPDATE;
3110 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3111 }
3112 }
3113
3114
3115 /*********************************************************************
3116 *
3117 * EM_SCROLL
3118 *
3119 */
3120 static LRESULT EDIT_EM_Scroll(WND *wnd, EDITSTATE *es, INT action)
3121 {
3122 INT dy;
3123
3124 if (!(es->style & ES_MULTILINE))
3125 return (LRESULT)FALSE;
3126
3127 dy = 0;
3128
3129 switch (action) {
3130 case SB_LINEUP:
3131 if (es->y_offset)
3132 dy = -1;
3133 break;
3134 case SB_LINEDOWN:
3135 if (es->y_offset < es->line_count - 1)
3136 dy = 1;
3137 break;
3138 case SB_PAGEUP:
3139 if (es->y_offset)
3140 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
3141 break;
3142 case SB_PAGEDOWN:
3143 if (es->y_offset < es->line_count - 1)
3144 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3145 break;
3146 default:
3147 return (LRESULT)FALSE;
3148 }
3149 if (dy) {
3150 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3151 /* check if we are going to move too far */
3152 if(es->y_offset + dy > es->line_count - vlc)
3153 dy = es->line_count - vlc - es->y_offset;
3154
3155 /* Notification is done in EDIT_EM_LineScroll */
3156 if(dy)
3157 EDIT_EM_LineScroll(wnd, es, 0, dy);
3158 }
3159 return MAKELONG((INT16)dy, (BOOL16)TRUE);
3160 }
3161
3162
3163 /*********************************************************************
3164 *
3165 * EM_SCROLLCARET
3166 *
3167 */
3168 static void EDIT_EM_ScrollCaret(WND *wnd, EDITSTATE *es)
3169 {
3170 if (es->style & ES_MULTILINE) {
3171 INT l;
3172 INT li;
3173 INT vlc;
3174 INT ww;
3175 INT cw = es->char_width;
3176 INT x;
3177 INT dy = 0;
3178 INT dx = 0;
3179
3180 l = EDIT_EM_LineFromChar(es, es->selection_end);
3181 li = EDIT_EM_LineIndex(es, l);
3182 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP));
3183 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3184 if (l >= es->y_offset + vlc)
3185 dy = l - vlc + 1 - es->y_offset;
3186 if (l < es->y_offset)
3187 dy = l - es->y_offset;
3188 ww = es->format_rect.right - es->format_rect.left;
3189 if (x < es->format_rect.left)
3190 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
3191 if (x > es->format_rect.right)
3192 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
3193 if (dy || dx)
3194 {
3195 /* check if we are going to move too far */
3196 if(es->x_offset + dx + ww > es->text_width)
3197 dx = es->text_width - ww - es->x_offset;
3198 if(dx || dy)
3199 EDIT_EM_LineScroll_internal(wnd, es, dx, dy);
3200 }
3201 } else {
3202 INT x;
3203 INT goal;
3204 INT format_width;
3205
3206 if (!(es->style & ES_AUTOHSCROLL))
3207 return;
3208
3209 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
3210 format_width = es->format_rect.right - es->format_rect.left;
3211 if (x < es->format_rect.left) {
3212 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
3213 do {
3214 es->x_offset--;
3215 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
3216 } while ((x < goal) && es->x_offset);
3217 /* FIXME: use ScrollWindow() somehow to improve performance */
3218 EDIT_UpdateText(wnd, NULL, TRUE);
3219 } else if (x > es->format_rect.right) {
3220 INT x_last;
3221 INT len = strlenW(es->text);
3222 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
3223 do {
3224 es->x_offset++;
3225 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
3226 x_last = SLOWORD(EDIT_EM_PosFromChar(wnd, es, len, FALSE));
3227 } while ((x > goal) && (x_last > es->format_rect.right));
3228 /* FIXME: use ScrollWindow() somehow to improve performance */
3229 EDIT_UpdateText(wnd, NULL, TRUE);
3230 }
3231 }
3232
3233 if(es->flags & EF_FOCUSED)
3234 EDIT_SetCaretPos(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP);
3235 }
3236
3237
3238 /*********************************************************************
3239 *
3240 * EM_SETHANDLE
3241 *
3242 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3243 *
3244 */
3245 static void EDIT_EM_SetHandle(WND *wnd, EDITSTATE *es, HLOCAL hloc)
3246 {
3247 if (!(es->style & ES_MULTILINE))
3248 return;
3249
3250 if (!hloc) {
3251 WARN("called with NULL handle\n");
3252 return;
3253 }
3254
3255 EDIT_UnlockBuffer(wnd, es, TRUE);
3256
3257 if(es->hloc16)
3258 {
3259 LOCAL_Free(wnd->hInstance, es->hloc16);
3260 es->hloc16 = (HLOCAL16)NULL;
3261 }
3262
3263 if(es->is_unicode)
3264 {
3265 if(es->hloc32A)
3266 {
3267 LocalFree(es->hloc32A);
3268 es->hloc32A = (HLOCAL)NULL;
3269 }
3270 es->hloc32W = hloc;
3271 }
3272 else
3273 {
3274 INT countW, countA;
3275 HLOCAL hloc32W_new;
3276 WCHAR *textW;
3277 CHAR *textA;
3278
3279 countA = LocalSize(hloc);
3280 textA = LocalLock(hloc);
3281 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3282 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3283 {
3284 ERR("Could not allocate new unicode buffer\n");
3285 return;
3286 }
3287 textW = LocalLock(hloc32W_new);
3288 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3289 LocalUnlock(hloc32W_new);
3290 LocalUnlock(hloc);
3291
3292 if(es->hloc32W)
3293 LocalFree(es->hloc32W);
3294
3295 es->hloc32W = hloc32W_new;
3296 es->hloc32A = hloc;
3297 }
3298
3299 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3300
3301 EDIT_LockBuffer(wnd, es);
3302
3303 es->x_offset = es->y_offset = 0;
3304 es->selection_start = es->selection_end = 0;
3305 EDIT_EM_EmptyUndoBuffer(es);
3306 es->flags &= ~EF_MODIFIED;
3307 es->flags &= ~EF_UPDATE;
3308 EDIT_BuildLineDefs_ML(wnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3309 EDIT_UpdateText(wnd, NULL, TRUE);
3310 EDIT_EM_ScrollCaret(wnd, es);
3311 /* force scroll info update */
3312 EDIT_UpdateScrollInfo(wnd, es);
3313 }
3314
3315
3316 /*********************************************************************
3317 *
3318 * EM_SETHANDLE16
3319 *
3320 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
3321 *
3322 */
3323 static void EDIT_EM_SetHandle16(WND *wnd, EDITSTATE *es, HLOCAL16 hloc)
3324 {
3325 INT countW, countA;
3326 HLOCAL hloc32W_new;
3327 WCHAR *textW;
3328 CHAR *textA;
3329
3330 if (!(es->style & ES_MULTILINE))
3331 return;
3332
3333 if (!hloc) {
3334 WARN("called with NULL handle\n");
3335 return;
3336 }
3337
3338 EDIT_UnlockBuffer(wnd, es, TRUE);
3339
3340 if(es->hloc32A)
3341 {
3342 LocalFree(es->hloc32A);
3343 es->hloc32A = (HLOCAL)NULL;
3344 }
3345
3346 countA = LOCAL_Size(wnd->hInstance, hloc);
3347 textA = LOCAL_Lock(wnd->hInstance, hloc);
3348 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
3349 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
3350 {
3351 ERR("Could not allocate new unicode buffer\n");
3352 return;
3353 }
3354 textW = LocalLock(hloc32W_new);
3355 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
3356 LocalUnlock(hloc32W_new);
3357 LOCAL_Unlock(wnd->hInstance, hloc);
3358
3359 if(es->hloc32W)
3360 LocalFree(es->hloc32W);
3361
3362 es->hloc32W = hloc32W_new;
3363 es->hloc16 = hloc;
3364
3365 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
3366
3367 EDIT_LockBuffer(wnd, es);
3368
3369 es->x_offset = es->y_offset = 0;
3370 es->selection_start = es->selection_end = 0;
3371 EDIT_EM_EmptyUndoBuffer(es);
3372 es->flags &= ~EF_MODIFIED;
3373 es->flags &= ~EF_UPDATE;
3374 EDIT_BuildLineDefs_ML(wnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3375 EDIT_UpdateText(wnd, NULL, TRUE);
3376 EDIT_EM_ScrollCaret(wnd, es);
3377 /* force scroll info update */
3378 EDIT_UpdateScrollInfo(wnd, es);
3379 }
3380
3381
3382 /*********************************************************************
3383 *
3384 * EM_SETLIMITTEXT
3385 *
3386 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
3387 * However, the windows version is not complied to yet in all of edit.c
3388 *
3389 */
3390 static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit)
3391 {
3392 if (es->style & ES_MULTILINE) {
3393 if (limit)
3394 es->buffer_limit = min(limit, BUFLIMIT_MULTI);
3395 else
3396 es->buffer_limit = BUFLIMIT_MULTI;
3397 } else {
3398 if (limit)
3399 es->buffer_limit = min(limit, BUFLIMIT_SINGLE);
3400 else
3401 es->buffer_limit = BUFLIMIT_SINGLE;
3402 }
3403 }
3404
3405
3406 /*********************************************************************
3407 *
3408 * EM_SETMARGINS
3409 *
3410 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
3411 * action wParam despite what the docs say. EC_USEFONTINFO means one third
3412 * of the char's width, according to the new docs.
3413 *
3414 */
3415 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
3416 INT left, INT right)
3417 {
3418 if (action & EC_LEFTMARGIN) {
3419 if (left != EC_USEFONTINFO)
3420 es->left_margin = left;
3421 else
3422 es->left_margin = es->char_width / 3;
3423 }
3424
3425 if (action & EC_RIGHTMARGIN) {
3426 if (right != EC_USEFONTINFO)
3427 es->right_margin = right;
3428 else
3429 es->right_margin = es->char_width / 3;
3430 }
3431 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
3432 }
3433
3434
3435 /*********************************************************************
3436 *
3437 * EM_SETPASSWORDCHAR
3438 *
3439 */
3440 static void EDIT_EM_SetPasswordChar(WND *wnd, EDITSTATE *es, WCHAR c)
3441 {
3442 if (es->style & ES_MULTILINE)
3443 return;
3444
3445 if (es->password_char == c)
3446 return;
3447
3448 es->password_char = c;
3449 if (c) {
3450 wnd->dwStyle |= ES_PASSWORD;
3451 es->style |= ES_PASSWORD;
3452 } else {
3453 wnd->dwStyle &= ~ES_PASSWORD;
3454 es->style &= ~ES_PASSWORD;
3455 }
3456 EDIT_UpdateText(wnd, NULL, TRUE);
3457 }
3458
3459
3460 /*********************************************************************
3461 *
3462 * EDIT_EM_SetSel
3463 *
3464 * note: unlike the specs say: the order of start and end
3465 * _is_ preserved in Windows. (i.e. start can be > end)
3466 * In other words: this handler is OK
3467 *
3468 */
3469 static void EDIT_EM_SetSel(WND *wnd, EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
3470 {
3471 UINT old_start = es->selection_start;
3472 UINT old_end = es->selection_end;
3473 UINT len = strlenW(es->text);
3474
3475 if (start == (UINT)-1) {
3476 start = es->selection_end;
3477 end = es->selection_end;
3478 } else {
3479 start = min(start, len);
3480 end = min(end, len);
3481 }
3482 es->selection_start = start;
3483 es->selection_end = end;
3484 if (after_wrap)
3485 es->flags |= EF_AFTER_WRAP;
3486 else
3487 es->flags &= ~EF_AFTER_WRAP;
3488 /* This is a little bit more efficient than before, not sure if it can be improved. FIXME? */
3489 ORDER_UINT(start, end);
3490 ORDER_UINT(end, old_end);
3491 ORDER_UINT(start, old_start);
3492 ORDER_UINT(old_start, old_end);
3493 if (end != old_start)
3494 {
3495 /*
3496 * One can also do
3497 * ORDER_UINT32(end, old_start);
3498 * EDIT_InvalidateText(wnd, es, start, end);
3499 * EDIT_InvalidateText(wnd, es, old_start, old_end);
3500 * in place of the following if statement.
3501 */
3502 if (old_start > end )
3503 {
3504 EDIT_InvalidateText(wnd, es, start, end);
3505 EDIT_InvalidateText(wnd, es, old_start, old_end);
3506 }
3507 else
3508 {
3509 EDIT_InvalidateText(wnd, es, start, old_start);
3510 EDIT_InvalidateText(wnd, es, end, old_end);
3511 }
3512 }
3513 else EDIT_InvalidateText(wnd, es, start, old_end);
3514 }
3515
3516
3517 /*********************************************************************
3518 *
3519 * EM_SETTABSTOPS
3520 *
3521 */
3522 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs)
3523 {
3524 if (!(es->style & ES_MULTILINE))
3525 return FALSE;
3526 if (es->tabs)
3527 HeapFree(GetProcessHeap(), 0, es->tabs);
3528 es->tabs_count = count;
3529 if (!count)
3530 es->tabs = NULL;
3531 else {
3532 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3533 memcpy(es->tabs, tabs, count * sizeof(INT));
3534 }
3535 return TRUE;
3536 }
3537
3538
3539 /*********************************************************************
3540 *
3541 * EM_SETTABSTOPS16
3542 *
3543 */
3544 static BOOL EDIT_EM_SetTabStops16(EDITSTATE *es, INT count, LPINT16 tabs)
3545 {
3546 if (!(es->style & ES_MULTILINE))
3547 return FALSE;
3548 if (es->tabs)
3549 HeapFree(GetProcessHeap(), 0, es->tabs);
3550 es->tabs_count = count;
3551 if (!count)
3552 es->tabs = NULL;
3553 else {
3554 INT i;
3555 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
3556 for (i = 0 ; i < count ; i++)
3557 es->tabs[i] = *tabs++;
3558 }
3559 return TRUE;
3560 }
3561
3562
3563 /*********************************************************************
3564 *
3565 * EM_SETWORDBREAKPROC
3566 *
3567 */
3568 static void EDIT_EM_SetWordBreakProc(WND *wnd, EDITSTATE *es, LPARAM lParam)
3569 {
3570 if (es->word_break_proc == (void *)lParam)
3571 return;
3572
3573 es->word_break_proc = (void *)lParam;
3574 es->word_break_proc16 = NULL;
3575
3576 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3577 EDIT_BuildLineDefs_ML(wnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3578 EDIT_UpdateText(wnd, NULL, TRUE);
3579 }
3580 }
3581
3582
3583 /*********************************************************************
3584 *
3585 * EM_SETWORDBREAKPROC16
3586 *
3587 */
3588 static void EDIT_EM_SetWordBreakProc16(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
3589 {
3590 if (es->word_break_proc16 == wbp)
3591 return;
3592
3593 es->word_break_proc = NULL;
3594 es->word_break_proc16 = wbp;
3595 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
3596 EDIT_BuildLineDefs_ML(wnd, es, 0, strlenW(es->text), 0, (HRGN)0);
3597 EDIT_UpdateText(wnd, NULL, TRUE);
3598 }
3599 }
3600
3601
3602 /*********************************************************************
3603 *
3604 * EM_UNDO / WM_UNDO
3605 *
3606 */
3607 static BOOL EDIT_EM_Undo(WND *wnd, EDITSTATE *es)
3608 {
3609 INT ulength;
3610 LPWSTR utext;
3611
3612 /* Protect read-only edit control from modification */
3613 if(es->style & ES_READONLY)
3614 return FALSE;
3615
3616 ulength = strlenW(es->undo_text);
3617 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
3618
3619 strcpyW(utext, es->undo_text);
3620
3621 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
3622 es->undo_insert_count, debugstr_w(utext));
3623
3624 EDIT_EM_SetSel(wnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3625 EDIT_EM_EmptyUndoBuffer(es);
3626 EDIT_EM_ReplaceSel(wnd, es, TRUE, utext, FALSE);
3627 EDIT_EM_SetSel(wnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
3628 /* send the notification after the selection start and end are set */
3629 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3630 EDIT_EM_ScrollCaret(wnd, es);
3631 HeapFree(GetProcessHeap(), 0, utext);
3632
3633 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
3634 es->undo_insert_count, debugstr_w(es->undo_text));
3635 return TRUE;
3636 }
3637
3638
3639 /*********************************************************************
3640 *
3641 * WM_CHAR
3642 *
3643 */
3644 static void EDIT_WM_Char(WND *wnd, EDITSTATE *es, WCHAR c)
3645 {
3646 BOOL control;
3647
3648 /* Protect read-only edit control from modification */
3649 if(es->style & ES_READONLY)
3650 return;
3651
3652 control = GetKeyState(VK_CONTROL) & 0x8000;
3653
3654 switch (c) {
3655 case '\r':
3656 /* If the edit doesn't want the return and it's not a multiline edit, do nothing */
3657 if(!(es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
3658 break;
3659 case '\n':
3660 if (es->style & ES_MULTILINE) {
3661 if (es->style & ES_READONLY) {
3662 EDIT_MoveHome(wnd, es, FALSE);
3663 EDIT_MoveDown_ML(wnd, es, FALSE);
3664 } else {
3665 static const WCHAR cr_lfW[] = {'\r','\n',0};
3666 EDIT_EM_ReplaceSel(wnd, es, TRUE, cr_lfW, TRUE);
3667 }
3668 }
3669 break;
3670 case '\t':
3671 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
3672 {
3673 static const WCHAR tabW[] = {'\t',0};
3674 EDIT_EM_ReplaceSel(wnd, es, TRUE, tabW, TRUE);
3675 }
3676 break;
3677 case VK_BACK:
3678 if (!(es->style & ES_READONLY) && !control) {
3679 if (es->selection_start != es->selection_end)
3680 EDIT_WM_Clear(wnd, es);
3681 else {
3682 /* delete character left of caret */
3683 EDIT_EM_SetSel(wnd, es, (UINT)-1, 0, FALSE);
3684 EDIT_MoveBackward(wnd, es, TRUE);
3685 EDIT_WM_Clear(wnd, es);
3686 }
3687 }
3688 break;
3689 case 0x03: /* ^C */
3690 SendMessageW(wnd->hwndSelf, WM_COPY, 0, 0);
3691 break;
3692 case 0x16: /* ^V */
3693 SendMessageW(wnd->hwndSelf, WM_PASTE, 0, 0);
3694 break;
3695 case 0x18: /* ^X */
3696 SendMessageW(wnd->hwndSelf, WM_CUT, 0, 0);
3697 break;
3698
3699 default:
3700 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3701 WCHAR str[2];
3702 str[0] = c;
3703 str[1] = '\0';
3704 EDIT_EM_ReplaceSel(wnd, es, TRUE, str, TRUE);
3705 }
3706 break;
3707 }
3708 }
3709
3710
3711 /*********************************************************************
3712 *
3713 * WM_COMMAND
3714 *
3715 */
3716 static void EDIT_WM_Command(WND *wnd, EDITSTATE *es, INT code, INT id, HWND control)
3717 {
3718 if (code || control)
3719 return;
3720
3721 switch (id) {
3722 case EM_UNDO:
3723 EDIT_EM_Undo(wnd, es);
3724 break;
3725 case WM_CUT:
3726 EDIT_WM_Cut(wnd, es);
3727 break;
3728 case WM_COPY:
3729 EDIT_WM_Copy(wnd, es);
3730 break;
3731 case WM_PASTE:
3732 EDIT_WM_Paste(wnd, es);
3733 break;
3734 case WM_CLEAR:
3735 EDIT_WM_Clear(wnd, es);
3736 break;
3737 case EM_SETSEL:
3738 EDIT_EM_SetSel(wnd, es, 0, (UINT)-1, FALSE);
3739 EDIT_EM_ScrollCaret(wnd, es);
3740 break;
3741 default:
3742 ERR("unknown menu item, please report\n");
3743 break;
3744 }
3745 }
3746
3747
3748 /*********************************************************************
3749 *
3750 * WM_CONTEXTMENU
3751 *
3752 * Note: the resource files resource/sysres_??.rc cannot define a
3753 * single popup menu. Hence we use a (dummy) menubar
3754 * containing the single popup menu as its first item.
3755 *
3756 * FIXME: the message identifiers have been chosen arbitrarily,
3757 * hence we use MF_BYPOSITION.
3758 * We might as well use the "real" values (anybody knows ?)
3759 * The menu definition is in resources/sysres_??.rc.
3760 * Once these are OK, we better use MF_BYCOMMAND here
3761 * (as we do in EDIT_WM_Command()).
3762 *
3763 */
3764 static void EDIT_WM_ContextMenu(WND *wnd, EDITSTATE *es, INT x, INT y)
3765 {
3766 HMENU menu = LoadMenuA(GetModuleHandleA("USER32"), "EDITMENU");
3767 HMENU popup = GetSubMenu(menu, 0);
3768 UINT start = es->selection_start;
3769 UINT end = es->selection_end;
3770
3771 ORDER_UINT(start, end);
3772
3773 /* undo */
3774 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3775 /* cut */
3776 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3777 /* copy */
3778 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3779 /* paste */
3780 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3781 /* delete */
3782 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3783 /* select all */
3784 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != strlenW(es->text)) ? MF_ENABLED : MF_GRAYED));
3785
3786 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, wnd->hwndSelf, NULL);
3787 DestroyMenu(menu);
3788 }
3789
3790
3791 /*********************************************************************
3792 *
3793 * WM_COPY
3794 *
3795 */
3796 static void EDIT_WM_Copy(WND *wnd, EDITSTATE *es)
3797 {
3798 INT s = es->selection_start;
3799 INT e = es->selection_end;
3800 HGLOBAL hdst;
3801 LPWSTR dst;
3802
3803 if (e == s)
3804 return;
3805 ORDER_INT(s, e);
3806 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (DWORD)(e - s + 1) * sizeof(WCHAR));
3807 dst = GlobalLock(hdst);
3808 strncpyW(dst, es->text + s, e - s);
3809 dst[e - s] = 0; /* ensure 0 termination */
3810 TRACE("%s\n", debugstr_w(dst));
3811 GlobalUnlock(hdst);
3812 OpenClipboard(wnd->hwndSelf);
3813 EmptyClipboard();
3814 SetClipboardData(CF_UNICODETEXT, hdst);
3815 CloseClipboard();
3816 }
3817
3818
3819 /*********************************************************************
3820 *
3821 * WM_CREATE
3822 *
3823 */
3824 static LRESULT EDIT_WM_Create(WND *wnd, EDITSTATE *es, LPCWSTR name)
3825 {
3826 TRACE("%s\n", debugstr_w(name));
3827 /*
3828 * To initialize some final structure members, we call some helper
3829 * functions. However, since the EDITSTATE is not consistent (i.e.
3830 * not fully initialized), we should be very careful which
3831 * functions can be called, and in what order.
3832 */
3833 EDIT_WM_SetFont(wnd, es, 0, FALSE);
3834 EDIT_EM_EmptyUndoBuffer(es);
3835
3836 if (name && *name) {
3837 EDIT_EM_ReplaceSel(wnd, es, FALSE, name, FALSE);
3838 /* if we insert text to the editline, the text scrolls out
3839 * of the window, as the caret is placed after the insert
3840 * pos normally; thus we reset es->selection... to 0 and
3841 * update caret
3842 */
3843 es->selection_start = es->selection_end = 0;
3844 /* send the notification after the selection start and end are set */
3845 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
3846 EDIT_EM_ScrollCaret(wnd, es);
3847 }
3848 /* force scroll info update */
3849 EDIT_UpdateScrollInfo(wnd, es);
3850 return 0;
3851 }
3852
3853
3854 /*********************************************************************
3855 *
3856 * WM_DESTROY
3857 *
3858 */
3859 static void EDIT_WM_Destroy(WND *wnd, EDITSTATE *es)
3860 {
3861 LINEDEF *pc, *pp;
3862
3863 if (es->hloc32W) {
3864 while (LocalUnlock(es->hloc32W)) ;
3865 LocalFree(es->hloc32W);
3866 }
3867 if (es->hloc32A) {
3868 while (LocalUnlock(es->hloc32A)) ;
3869 LocalFree(es->hloc32A);
3870 }
3871 if (es->hloc16) {
3872 while (LOCAL_Unlock(wnd->hInstance, es->hloc16)) ;
3873 LOCAL_Free(wnd->hInstance, es->hloc16);
3874 }
3875
3876 pc = es->first_line_def;
3877 while (pc)
3878 {
3879 pp = pc->next;
3880 HeapFree(GetProcessHeap(), 0, pc);
3881 pc = pp;
3882 }
3883
3884 HeapFree(GetProcessHeap(), 0, es);
3885 *(EDITSTATE **)wnd->wExtra = NULL;
3886 }
3887
3888
3889 /*********************************************************************
3890 *
3891 * WM_ERASEBKGND
3892 *
3893 */
3894 static LRESULT EDIT_WM_EraseBkGnd(WND *wnd, EDITSTATE *es, HDC dc)
3895 {
3896 HBRUSH brush;
3897 RECT rc;
3898
3899 if ( get_app_version() >= 0x40000 &&(
3900 !es->bEnableState || (es->style & ES_READONLY)))
3901 brush = (HBRUSH)EDIT_SEND_CTLCOLORSTATIC(wnd, dc);
3902 else
3903 brush = (HBRUSH)EDIT_SEND_CTLCOLOR(wnd, dc);
3904
3905 if (!brush)
3906 brush = (HBRUSH)GetStockObject(WHITE_BRUSH);
3907
3908 GetClientRect(wnd->hwndSelf, &rc);
3909 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3910 GetClipBox(dc, &rc);
3911 /*
3912 * FIXME: specs say that we should UnrealizeObject() the brush,
3913 * but the specs of UnrealizeObject() say that we shouldn't
3914 * unrealize a stock object. The default brush that
3915 * DefWndProc() returns is ... a stock object.
3916 */
3917 FillRect(dc, &rc, brush);
3918 return -1;
3919 }
3920
3921
3922 /*********************************************************************
3923 *
3924 * WM_GETTEXT
3925 *
3926 */
3927 static INT EDIT_WM_GetText(EDITSTATE *es, INT count, LPARAM lParam, BOOL unicode)
3928 {
3929 if(!count) return 0;
3930
3931 if(unicode)
3932 {
3933 LPWSTR textW = (LPWSTR)lParam;
3934 strncpyW(textW, es->text, count);
3935 textW[count - 1] = 0; /* ensure 0 termination */
3936 return strlenW(textW);
3937 }
3938 else
3939 {
3940 LPSTR textA = (LPSTR)lParam;
3941 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL);
3942 textA[count - 1] = 0; /* ensure 0 termination */
3943 return strlen(textA);
3944 }
3945 }
3946
3947 /*********************************************************************
3948 *
3949 * WM_HSCROLL
3950 *
3951 */
3952 static LRESULT EDIT_WM_HScroll(WND *wnd, EDITSTATE *es, INT action, INT pos)
3953 {
3954 INT dx;
3955 INT fw;
3956
3957 if (!(es->style & ES_MULTILINE))
3958 return 0;
3959
3960 if (!(es->style & ES_AUTOHSCROLL))
3961 return 0;
3962
3963 dx = 0;
3964 fw = es->format_rect.right - es->format_rect.left;
3965 switch (action) {
3966 case SB_LINELEFT:
3967 TRACE("SB_LINELEFT\n");
3968 if (es->x_offset)
3969 dx = -es->char_width;
3970 break;
3971 case SB_LINERIGHT:
3972 TRACE("SB_LINERIGHT\n");
3973 if (es->x_offset < es->text_width)
3974 dx = es->char_width;
3975 break;
3976 case SB_PAGELEFT:
3977 TRACE("SB_PAGELEFT\n");
3978 if (es->x_offset)
3979 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3980 break;
3981 case SB_PAGERIGHT:
3982 TRACE("SB_PAGERIGHT\n");
3983 if (es->x_offset < es->text_width)
3984 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3985 break;
3986 case SB_LEFT:
3987 TRACE("SB_LEFT\n");
3988 if (es->x_offset)
3989 dx = -es->x_offset;
3990 break;
3991 case SB_RIGHT:
3992 TRACE("SB_RIGHT\n");
3993 if (es->x_offset < es->text_width)
3994 dx = es->text_width - es->x_offset;
3995 break;
3996 case SB_THUMBTRACK:
3997 TRACE("SB_THUMBTRACK %d\n", pos);
3998 es->flags |= EF_HSCROLL_TRACK;
3999 if(es->style & WS_HSCROLL)
4000 dx = pos - es->x_offset;
4001 else
4002 {
4003 INT fw, new_x;
4004 /* Sanity check */
4005 if(pos < 0 || pos > 100) return 0;
4006 /* Assume default scroll range 0-100 */
4007 fw = es->format_rect.right - es->format_rect.left;
4008 new_x = pos * (es->text_width - fw) / 100;
4009 dx = es->text_width ? (new_x - es->x_offset) : 0;
4010 }
4011 break;
4012 case SB_THUMBPOSITION:
4013 TRACE("SB_THUMBPOSITION %d\n", pos);
4014 es->flags &= ~EF_HSCROLL_TRACK;
4015 if(wnd->dwStyle & WS_HSCROLL)
4016 dx = pos - es->x_offset;
4017 else
4018 {
4019 INT fw, new_x;
4020 /* Sanity check */
4021 if(pos < 0 || pos > 100) return 0;
4022 /* Assume default scroll range 0-100 */
4023 fw = es->format_rect.right - es->format_rect.left;
4024 new_x = pos * (es->text_width - fw) / 100;
4025 dx = es->text_width ? (new_x - es->x_offset) : 0;
4026 }
4027 if (!dx) {
4028 /* force scroll info update */
4029 EDIT_UpdateScrollInfo(wnd, es);
4030 EDIT_NOTIFY_PARENT(es, EN_HSCROLL, "EN_HSCROLL");
4031 }
4032 break;
4033 case SB_ENDSCROLL:
4034 TRACE("SB_ENDSCROLL\n");
4035 break;
4036 /*
4037 * FIXME : the next two are undocumented !
4038 * Are we doing the right thing ?
4039 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4040 * although it's also a regular control message.
4041 */
4042 case EM_GETTHUMB: /* this one is used by NT notepad */
4043 case EM_GETTHUMB16:
4044 {
4045 LRESULT ret;
4046 if(wnd->dwStyle & WS_HSCROLL)
4047 ret = GetScrollPos(wnd->hwndSelf, SB_HORZ);
4048 else
4049 {
4050 /* Assume default scroll range 0-100 */
4051 INT fw = es->format_rect.right - es->format_rect.left;
4052 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
4053 }
4054 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4055 return ret;
4056 }
4057 case EM_LINESCROLL16:
4058 TRACE("EM_LINESCROLL16\n");
4059 dx = pos;
4060 break;
4061
4062 default:
4063 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
4064 action, action);
4065 return 0;
4066 }
4067 if (dx)
4068 {
4069 INT fw = es->format_rect.right - es->format_rect.left;
4070 /* check if we are going to move too far */
4071 if(es->x_offset + dx + fw > es->text_width)
4072 dx = es->text_width - fw - es->x_offset;
4073 if(dx)
4074 EDIT_EM_LineScroll_internal(wnd, es, dx, 0);
4075 }
4076 return 0;
4077 }
4078
4079
4080 /*********************************************************************
4081 *
4082 * EDIT_CheckCombo
4083 *
4084 */
4085 static BOOL EDIT_CheckCombo(WND *wnd, EDITSTATE *es, UINT msg, INT key)
4086 {
4087 HWND hLBox = es->hwndListBox;
4088 HWND hCombo;
4089 BOOL bDropped;
4090 int nEUI;
4091
4092 if (!hLBox)
4093 return FALSE;
4094
4095 hCombo = wnd->parent->hwndSelf;
4096 bDropped = TRUE;
4097 nEUI = 0;
4098
4099 TRACE_(combo)("[%04x]: handling msg %04x (%04x)\n",
4100 wnd->hwndSelf, (UINT16)msg, (UINT16)key);
4101
4102 if (key == VK_UP || key == VK_DOWN)
4103 {
4104 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
4105 nEUI = 1;
4106
4107 if (msg == WM_KEYDOWN || nEUI)
4108 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
4109 }
4110
4111 switch (msg)
4112 {
4113 case WM_KEYDOWN:
4114 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
4115 {
4116 /* make sure ComboLBox pops up */
4117 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
4118 key = VK_F4;
4119 nEUI = 2;
4120 }
4121
4122 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
4123 break;
4124
4125 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
4126 if (nEUI)
4127 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
4128 else
4129 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
4130 break;
4131 }
4132
4133 if(nEUI == 2)
4134 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
4135
4136 return TRUE;
4137 }
4138
4139
4140 /*********************************************************************
4141 *
4142 * WM_KEYDOWN
4143 *
4144 * Handling of special keys that don't produce a WM_CHAR
4145 * (i.e. non-printable keys) & Backspace & Delete
4146 *
4147 */
4148 static LRESULT EDIT_WM_KeyDown(WND *wnd, EDITSTATE *es, INT key)
4149 {
4150 BOOL shift;
4151 BOOL control;
4152
4153 if (GetKeyState(VK_MENU) & 0x8000)
4154 return 0;
4155
4156 shift = GetKeyState(VK_SHIFT) & 0x8000;
4157 control = GetKeyState(VK_CONTROL) & 0x8000;
4158
4159 switch (key) {
4160 case VK_F4:
4161 case VK_UP:
4162 if (EDIT_CheckCombo(wnd, es, WM_KEYDOWN, key) || key == VK_F4)
4163 break;
4164
4165 /* fall through */
4166 case VK_LEFT:
4167 if ((es->style & ES_MULTILINE) && (key == VK_UP))
4168 EDIT_MoveUp_ML(wnd, es, shift);
4169 else
4170 if (control)
4171 EDIT_MoveWordBackward(wnd, es, shift);
4172 else
4173 EDIT_MoveBackward(wnd, es, shift);
4174 break;
4175 case VK_DOWN:
4176 if (EDIT_CheckCombo(wnd, es, WM_KEYDOWN, key))
4177 break;
4178 /* fall through */
4179 case VK_RIGHT:
4180 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
4181 EDIT_MoveDown_ML(wnd, es, shift);
4182 else if (control)
4183 EDIT_MoveWordForward(wnd, es, shift);
4184 else
4185 EDIT_MoveForward(wnd, es, shift);
4186 break;
4187 case VK_HOME:
4188 EDIT_MoveHome(wnd, es, shift);
4189 break;
4190 case VK_END:
4191 EDIT_MoveEnd(wnd, es, shift);
4192 break;
4193 case VK_PRIOR:
4194 if (es->style & ES_MULTILINE)
4195 EDIT_MovePageUp_ML(wnd, es, shift);
4196 else
4197 EDIT_CheckCombo(wnd, es, WM_KEYDOWN, key);
4198 break;
4199 case VK_NEXT:
4200 if (es->style & ES_MULTILINE)
4201 EDIT_MovePageDown_ML(wnd, es, shift);
4202 else
4203 EDIT_CheckCombo(wnd, es, WM_KEYDOWN, key);
4204 break;
4205 case VK_DELETE:
4206 if (!(es->style & ES_READONLY) && !(shift && control)) {
4207 if (es->selection_start != es->selection_end) {
4208 if (shift)
4209 EDIT_WM_Cut(wnd, es);
4210 else
4211 EDIT_WM_Clear(wnd, es);
4212 } else {
4213 if (shift) {
4214 /* delete character left of caret */
4215 EDIT_EM_SetSel(wnd, es, (UINT)-1, 0, FALSE);
4216 EDIT_MoveBackward(wnd, es, TRUE);
4217 EDIT_WM_Clear(wnd, es);
4218 } else if (control) {
4219 /* delete to end of line */
4220 EDIT_EM_SetSel(wnd, es, (UINT)-1, 0, FALSE);
4221 EDIT_MoveEnd(wnd, es, TRUE);
4222 EDIT_WM_Clear(wnd, es);
4223 } else {
4224 /* delete character right of caret */
4225 EDIT_EM_SetSel(wnd, es, (UINT)-1, 0, FALSE);
4226 EDIT_MoveForward(wnd, es, TRUE);
4227 EDIT_WM_Clear(wnd, es);
4228 }
4229 }
4230 }
4231 break;
4232 case VK_INSERT:
4233 if (shift) {
4234 if (!(es->style & ES_READONLY))
4235 EDIT_WM_Paste(wnd, es);
4236 } else if (control)
4237 EDIT_WM_Copy(wnd, es);
4238 break;
4239 case VK_RETURN:
4240 /* If the edit doesn't want the return send a message to the default object */
4241 if(!(es->style & ES_WANTRETURN))
4242 {
4243 HWND hwndParent = GetParent(wnd->hwndSelf);
4244 DWORD dw = SendMessageW( hwndParent, DM_GETDEFID, 0, 0 );
4245 if (HIWORD(dw) == DC_HASDEFID)
4246 {
4247 SendMessageW( hwndParent, WM_COMMAND,
4248 MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
4249 (LPARAM)GetDlgItem( hwndParent, LOWORD(dw) ) );
4250 }
4251 }
4252 break;
4253 }
4254 return 0;
4255 }
4256
4257
4258 /*********************************************************************
4259 *
4260 * WM_KILLFOCUS
4261 *
4262 */
4263 static LRESULT EDIT_WM_KillFocus(WND *wnd, EDITSTATE *es)
4264 {
4265 es->flags &= ~EF_FOCUSED;
4266 DestroyCaret();
4267 if(!(es->style & ES_NOHIDESEL))
4268 EDIT_InvalidateText(wnd, es, es->selection_start, es->selection_end);
4269 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS, "EN_KILLFOCUS");
4270 return 0;
4271 }
4272
4273
4274 /*********************************************************************
4275 *
4276 * WM_LBUTTONDBLCLK
4277 *
4278 * The caret position has been set on the WM_LBUTTONDOWN message
4279 *
4280 */
4281 static LRESULT EDIT_WM_LButtonDblClk(WND *wnd, EDITSTATE *es)
4282 {
4283 INT s;
4284 INT e = es->selection_end;
4285 INT l;
4286 INT li;
4287 INT ll;
4288
4289 if (!(es->flags & EF_FOCUSED))
4290 return 0;
4291
4292 l = EDIT_EM_LineFromChar(es, e);
4293 li = EDIT_EM_LineIndex(es, l);
4294 ll = EDIT_EM_LineLength(es, e);
4295 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
4296 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
4297 EDIT_EM_SetSel(wnd, es, s, e, FALSE);
4298 EDIT_EM_ScrollCaret(wnd, es);
4299 return 0;
4300 }
4301
4302
4303 /*********************************************************************
4304 *
4305 * WM_LBUTTONDOWN
4306 *
4307 */
4308 static LRESULT EDIT_WM_LButtonDown(WND *wnd, EDITSTATE *es, DWORD keys, INT x, INT y)
4309 {
4310 INT e;
4311 BOOL after_wrap;
4312
4313 if (!(es->flags & EF_FOCUSED))
4314 return 0;
4315
4316 es->bCaptureState = TRUE;
4317 SetCapture(wnd->hwndSelf);
4318 EDIT_ConfinePoint(es, &x, &y);
4319 e = EDIT_CharFromPos(wnd, es, x, y, &after_wrap);
4320 EDIT_EM_SetSel(wnd, es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
4321 EDIT_EM_ScrollCaret(wnd, es);
4322 es->region_posx = es->region_posy = 0;
4323 SetTimer(wnd->hwndSelf, 0, 100, NULL);
4324 return 0;
4325 }
4326
4327
4328 /*********************************************************************
4329 *
4330 * WM_LBUTTONUP
4331 *
4332 */
4333 static LRESULT EDIT_WM_LButtonUp(HWND hwndSelf, EDITSTATE *es)
4334 {
4335 if (es->bCaptureState && GetCapture() == hwndSelf) {
4336 KillTimer(hwndSelf, 0);
4337 ReleaseCapture();
4338 }
4339 es->bCaptureState = FALSE;
4340 return 0;
4341 }
4342
4343
4344 /*********************************************************************
4345 *
4346 * WM_MBUTTONDOWN
4347 *
4348 */
4349 static LRESULT EDIT_WM_MButtonDown(WND *wnd)
4350 {
4351 SendMessageW(wnd->hwndSelf,WM_PASTE,0,0);
4352 return 0;
4353 }
4354
4355
4356 /*********************************************************************
4357 *
4358 * WM_MOUSEMOVE
4359 *
4360 */
4361 static LRESULT EDIT_WM_MouseMove(WND *wnd, EDITSTATE *es, INT x, INT y)
4362 {
4363 INT e;
4364 BOOL after_wrap;
4365 INT prex, prey;
4366
4367 if (GetCapture() != wnd->hwndSelf)
4368 return 0;
4369
4370 /*
4371 * FIXME: gotta do some scrolling if outside client
4372 * area. Maybe reset the timer ?
4373 */
4374 prex = x; prey = y;
4375 EDIT_ConfinePoint(es, &x, &y);
4376 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
4377 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
4378 e = EDIT_CharFromPos(wnd, es, x, y, &after_wrap);
4379 EDIT_EM_SetSel(wnd, es, es->selection_start, e, after_wrap);
4380 return 0;
4381 }
4382
4383
4384 /*********************************************************************
4385 *
4386 * WM_NCCREATE
4387 *
4388 */
4389 static LRESULT EDIT_WM_NCCreate(WND *wnd, DWORD style, HWND hwndParent, BOOL unicode)
4390 {
4391 EDITSTATE *es;
4392 UINT alloc_size;
4393
4394 TRACE("Creating %s edit control, style = %08lx\n",
4395 unicode ? "Unicode" : "ANSI", style);
4396
4397 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4398 return FALSE;
4399 *(EDITSTATE **)wnd->wExtra = es;
4400
4401 /*
4402 * Note: since the EDITSTATE has not been fully initialized yet,
4403 * we can't use any API calls that may send
4404 * WM_XXX messages before WM_NCCREATE is completed.
4405 */
4406
4407 es->is_unicode = unicode;
4408 es->style = style;
4409
4410 es->bEnableState = !(style & WS_DISABLED);
4411
4412 /*
4413 * In Win95 look and feel, the WS_BORDER style is replaced by the
4414 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4415 * control a non client area.
4416 */
4417 if (TWEAK_WineLook != WIN31_LOOK)
4418 {
4419 if (es->style & WS_BORDER)
4420 {
4421 es->style &= ~WS_BORDER;
4422 wnd->dwStyle &= ~WS_BORDER;
4423 wnd->dwExStyle |= WS_EX_CLIENTEDGE;
4424 }
4425 }
4426 else
4427 {
4428 if ((es->style & WS_BORDER) && !(es->style & WS_DLGFRAME))
4429 wnd->dwStyle &= ~WS_BORDER;
4430 }
4431
4432 /* Save parent, which will be notified by EN_* messages */
4433 es->hwndParent = hwndParent;
4434
4435 if (es->style & ES_COMBO)
4436 es->hwndListBox = GetDlgItem(hwndParent, ID_CB_LISTBOX);
4437
4438 if (es->style & ES_MULTILINE) {
4439 es->buffer_limit = BUFLIMIT_MULTI;
4440 if (es->style & WS_VSCROLL)
4441 es->style |= ES_AUTOVSCROLL;
4442 if (es->style & WS_HSCROLL)
4443 es->style |= ES_AUTOHSCROLL;
4444 es->style &= ~ES_PASSWORD;
4445 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4446 if (es->style & ES_RIGHT)
4447 es->style &= ~ES_CENTER;
4448 es->style &= ~WS_HSCROLL;
4449 es->style &= ~ES_AUTOHSCROLL;
4450 }
4451
4452 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
4453 es->style |= ES_AUTOVSCROLL;
4454 } else {
4455 es->buffer_limit = BUFLIMIT_SINGLE;
4456 es->style &= ~ES_CENTER;
4457 es->style &= ~ES_RIGHT;
4458 es->style &= ~WS_HSCROLL;
4459 es->style &= ~WS_VSCROLL;
4460 es->style &= ~ES_AUTOVSCROLL;
4461 es->style &= ~ES_WANTRETURN;
4462 if (es->style & ES_UPPERCASE) {
4463 es->style &= ~ES_LOWERCASE;
4464 es->style &= ~ES_NUMBER;
4465 } else if (es->style & ES_LOWERCASE)
4466 es->style &= ~ES_NUMBER;
4467 if (es->style & ES_PASSWORD)
4468 es->password_char = '*';
4469
4470 /* FIXME: for now, all single line controls are AUTOHSCROLL */
4471 es->style |= ES_AUTOHSCROLL;
4472 }
4473
4474 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4475 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4476 return FALSE;
4477 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4478
4479 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4480 return FALSE;
4481 es->undo_buffer_size = es->buffer_size;
4482
4483 if (es->style & ES_MULTILINE)
4484 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4485 return FALSE;
4486 es->line_count = 1;
4487
4488 return TRUE;
4489 }
4490
4491 /*********************************************************************
4492 *
4493 * WM_PAINT
4494 *
4495 */
4496 static void EDIT_WM_Paint(WND *wnd, EDITSTATE *es, WPARAM wParam)
4497 {
4498 PAINTSTRUCT ps;
4499 INT i;
4500 HDC dc;
4501 HFONT old_font = 0;
4502 RECT rc;
4503 RECT rcLine;
4504 RECT rcRgn;
4505 BOOL rev = es->bEnableState &&
4506 ((es->flags & EF_FOCUSED) ||
4507 (es->style & ES_NOHIDESEL));
4508 if (!wParam)
4509 dc = BeginPaint(wnd->hwndSelf, &ps);
4510 else
4511 dc = (HDC) wParam;
4512 if(es->style & WS_BORDER) {
4513 GetClientRect(wnd->hwndSelf, &rc);
4514 if(es->style & ES_MULTILINE) {
4515 if(es->style & WS_HSCROLL) rc.bottom++;
4516 if(es->style & WS_VSCROLL) rc.right++;
4517 }
4518 Rectangle(dc, rc.left, rc.top, rc.right, rc.bottom);
4519 }
4520 IntersectClipRect(dc, es->format_rect.left,
4521 es->format_rect.top,
4522 es->format_rect.right,
4523 es->format_rect.bottom);
4524 if (es->style & ES_MULTILINE) {
4525 GetClientRect(wnd->hwndSelf, &rc);
4526 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
4527 }
4528 if (es->font)
4529 old_font = SelectObject(dc, es->font);
4530 if ( get_app_version() >= 0x40000 &&(
4531 !es->bEnableState || (es->style & ES_READONLY)))
4532 EDIT_SEND_CTLCOLORSTATIC(wnd, dc);
4533 else
4534 EDIT_SEND_CTLCOLOR(wnd, dc);
4535
4536 if (!es->bEnableState)
4537 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
4538 GetClipBox(dc, &rcRgn);
4539 if (es->style & ES_MULTILINE) {
4540 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4541 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
4542 EDIT_GetLineRect(wnd, es, i, 0, -1, &rcLine);
4543 if (IntersectRect(&rc, &rcRgn, &rcLine))
4544 EDIT_PaintLine(wnd, es, dc, i, rev);
4545 }
4546 } else {
4547 EDIT_GetLineRect(wnd, es, 0, 0, -1, &rcLine);
4548 if (IntersectRect(&rc, &rcRgn, &rcLine))
4549 EDIT_PaintLine(wnd, es, dc, 0, rev);
4550 }
4551 if (es->font)
4552 SelectObject(dc, old_font);
4553
4554 if (!wParam)
4555 EndPaint(wnd->hwndSelf, &ps);
4556 }
4557
4558
4559 /*********************************************************************
4560 *
4561 * WM_PASTE
4562 *
4563 */
4564 static void EDIT_WM_Paste(WND *wnd, EDITSTATE *es)
4565 {
4566 HGLOBAL hsrc;
4567 LPWSTR src;
4568
4569 /* Protect read-only edit control from modification */
4570 if(es->style & ES_READONLY)
4571 return;
4572
4573 OpenClipboard(wnd->hwndSelf);
4574 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
4575 src = (LPWSTR)GlobalLock(hsrc);
4576 EDIT_EM_ReplaceSel(wnd, es, TRUE, src, TRUE);
4577 GlobalUnlock(hsrc);
4578 }
4579 CloseClipboard();
4580 }
4581
4582
4583 /*********************************************************************
4584 *
4585 * WM_SETFOCUS
4586 *
4587 */
4588 static void EDIT_WM_SetFocus(WND *wnd, EDITSTATE *es)
4589 {
4590 es->flags |= EF_FOCUSED;
4591 CreateCaret(wnd->hwndSelf, 0, 2, es->line_height);
4592 EDIT_SetCaretPos(wnd, es, es->selection_end,
4593 es->flags & EF_AFTER_WRAP);
4594 if(!(es->style & ES_NOHIDESEL))
4595 EDIT_InvalidateText(wnd, es, es->selection_start, es->selection_end);
4596 ShowCaret(wnd->hwndSelf);
4597 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS, "EN_SETFOCUS");
4598 }
4599
4600
4601 /*********************************************************************
4602 *
4603 * WM_SETFONT
4604 *
4605 * With Win95 look the margins are set to default font value unless
4606 * the system font (font == 0) is being set, in which case they are left
4607 * unchanged.
4608 *
4609 */
4610 static void EDIT_WM_SetFont(WND *wnd, EDITSTATE *es, HFONT font, BOOL redraw)
4611 {
4612 TEXTMETRICW tm;
4613 HDC dc;
4614 HFONT old_font = 0;
4615 RECT r;
4616
4617 es->font = font;
4618 dc = GetDC(wnd->hwndSelf);
4619 if (font)
4620 old_font = SelectObject(dc, font);
4621 GetTextMetricsW(dc, &tm);
4622 es->line_height = tm.tmHeight;
4623 es->char_width = tm.tmAveCharWidth;
4624 if (font)
4625 SelectObject(dc, old_font);
4626 ReleaseDC(wnd->hwndSelf, dc);
4627 if (font && (TWEAK_WineLook > WIN31_LOOK))
4628 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
4629 EC_USEFONTINFO, EC_USEFONTINFO);
4630
4631 /* Force the recalculation of the format rect for each font change */
4632 GetClientRect(wnd->hwndSelf, &r);
4633 EDIT_SetRectNP(wnd, es, &r);
4634
4635 if (es->style & ES_MULTILINE)
4636 EDIT_BuildLineDefs_ML(wnd, es, 0, strlenW(es->text), 0, (HRGN)0);
4637 else
4638 EDIT_CalcLineWidth_SL(wnd, es);
4639
4640 if (redraw)
4641 EDIT_UpdateText(wnd, NULL, TRUE);
4642 if (es->flags & EF_FOCUSED) {
4643 DestroyCaret();
4644 CreateCaret(wnd->hwndSelf, 0, 2, es->line_height);
4645 EDIT_SetCaretPos(wnd, es, es->selection_end,
4646 es->flags & EF_AFTER_WRAP);
4647 ShowCaret(wnd->hwndSelf);
4648 }
4649 }
4650
4651
4652 /*********************************************************************
4653 *
4654 * WM_SETTEXT
4655 *
4656 * NOTES
4657 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
4658 * The modified flag is reset. No notifications are sent.
4659 *
4660 * For single-line controls, reception of WM_SETTEXT triggers:
4661 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
4662 *
4663 */
4664 static void EDIT_WM_SetText(WND *wnd, EDITSTATE *es, LPARAM lParam, BOOL unicode)
4665 {
4666 LPWSTR text = NULL;
4667
4668 if(unicode)
4669 text = (LPWSTR)lParam;
4670 else if (lParam)
4671 {
4672 LPCSTR textA = (LPCSTR)lParam;
4673 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4674 if((text = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4675 MultiByteToWideChar(CP_ACP, 0, textA, -1, text, countW);
4676 }
4677
4678 EDIT_EM_SetSel(wnd, es, 0, (UINT)-1, FALSE);
4679 if (text) {
4680 TRACE("%s\n", debugstr_w(text));
4681 EDIT_EM_ReplaceSel(wnd, es, FALSE, text, FALSE);
4682 if(!unicode)
4683 HeapFree(GetProcessHeap(), 0, text);
4684 } else {
4685 static const WCHAR empty_stringW[] = {0};
4686 TRACE("<NULL>\n");
4687 EDIT_EM_ReplaceSel(wnd, es, FALSE, empty_stringW, FALSE);
4688 }
4689 es->x_offset = 0;
4690 es->flags &= ~EF_MODIFIED;
4691 EDIT_EM_SetSel(wnd, es, 0, 0, FALSE);
4692 /* Send the notification after the selection start and end have been set
4693 * edit control doesn't send notification on WM_SETTEXT
4694 * if it is multiline, or it is part of combobox
4695 */
4696 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
4697 EDIT_NOTIFY_PARENT(es, EN_CHANGE, "EN_CHANGE");
4698 EDIT_EM_ScrollCaret(wnd, es);
4699 }
4700
4701
4702 /*********************************************************************
4703 *
4704 * WM_SIZE
4705 *
4706 */
4707 static void EDIT_WM_Size(WND *wnd, EDITSTATE *es, UINT action, INT width, INT height)
4708 {
4709 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
4710 RECT rc;
4711 TRACE("width = %d, height = %d\n", width, height);
4712 SetRect(&rc, 0, 0, width, height);
4713 EDIT_SetRectNP(wnd, es, &rc);
4714 EDIT_UpdateText(wnd, NULL, TRUE);
4715 }
4716 }
4717
4718
4719 /*********************************************************************
4720 *
4721 * WM_SYSKEYDOWN
4722 *
4723 */
4724 static LRESULT EDIT_WM_SysKeyDown(WND *wnd, EDITSTATE *es, INT key, DWORD key_data)
4725 {
4726 if ((key == VK_BACK) && (key_data & 0x2000)) {
4727 if (EDIT_EM_CanUndo(es))
4728 EDIT_EM_Undo(wnd, es);
4729 return 0;
4730 } else if (key == VK_UP || key == VK_DOWN) {
4731 if (EDIT_CheckCombo(wnd, es, WM_SYSKEYDOWN, key))
4732 return 0;
4733 }
4734 return DefWindowProcW(wnd->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
4735 }
4736
4737
4738 /*********************************************************************
4739 *
4740 * WM_TIMER
4741 *
4742 */
4743 static void EDIT_WM_Timer(WND *wnd, EDITSTATE *es)
4744 {
4745 if (es->region_posx < 0) {
4746 EDIT_MoveBackward(wnd, es, TRUE);
4747 } else if (es->region_posx > 0) {
4748 EDIT_MoveForward(wnd, es, TRUE);
4749 }
4750 /*
4751 * FIXME: gotta do some vertical scrolling here, like
4752 * EDIT_EM_LineScroll(wnd, 0, 1);
4753 */
4754 }
4755
4756 /*********************************************************************
4757 *
4758 * WM_VSCROLL
4759 *
4760 */
4761 static LRESULT EDIT_WM_VScroll(WND *wnd, EDITSTATE *es, INT action, INT pos)
4762 {
4763 INT dy;
4764
4765 if (!(es->style & ES_MULTILINE))
4766 return 0;
4767
4768 if (!(es->style & ES_AUTOVSCROLL))
4769 return 0;
4770
4771 dy = 0;
4772 switch (action) {
4773 case SB_LINEUP:
4774 case SB_LINEDOWN:
4775 case SB_PAGEUP:
4776 case SB_PAGEDOWN:
4777 TRACE("action %d\n", action);
4778 EDIT_EM_Scroll(wnd, es, action);
4779 return 0;
4780 case SB_TOP:
4781 TRACE("SB_TOP\n");
4782 dy = -es->y_offset;
4783 break;
4784 case SB_BOTTOM:
4785 TRACE("SB_BOTTOM\n");
4786 dy = es->line_count - 1 - es->y_offset;
4787 break;
4788 case SB_THUMBTRACK:
4789 TRACE("SB_THUMBTRACK %d\n", pos);
4790 es->flags |= EF_VSCROLL_TRACK;
4791 if(es->style & WS_VSCROLL)
4792 dy = pos - es->y_offset;
4793 else
4794 {
4795 /* Assume default scroll range 0-100 */
4796 INT vlc, new_y;
4797 /* Sanity check */
4798 if(pos < 0 || pos > 100) return 0;
4799 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4800 new_y = pos * (es->line_count - vlc) / 100;
4801 dy = es->line_count ? (new_y - es->y_offset) : 0;
4802 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4803 es->line_count, es->y_offset, pos, dy);
4804 }
4805 break;
4806 case SB_THUMBPOSITION:
4807 TRACE("SB_THUMBPOSITION %d\n", pos);
4808 es->flags &= ~EF_VSCROLL_TRACK;
4809 if(es->style & WS_VSCROLL)
4810 dy = pos - es->y_offset;
4811 else
4812 {
4813 /* Assume default scroll range 0-100 */
4814 INT vlc, new_y;
4815 /* Sanity check */
4816 if(pos < 0 || pos > 100) return 0;
4817 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4818 new_y = pos * (es->line_count - vlc) / 100;
4819 dy = es->line_count ? (new_y - es->y_offset) : 0;
4820 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4821 es->line_count, es->y_offset, pos, dy);
4822 }
4823 if (!dy)
4824 {
4825 /* force scroll info update */
4826 EDIT_UpdateScrollInfo(wnd, es);
4827 EDIT_NOTIFY_PARENT(es, EN_VSCROLL, "EN_VSCROLL");
4828 }
4829 break;
4830 case SB_ENDSCROLL:
4831 TRACE("SB_ENDSCROLL\n");
4832 break;
4833 /*
4834 * FIXME : the next two are undocumented !
4835 * Are we doing the right thing ?
4836 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4837 * although it's also a regular control message.
4838 */
4839 case EM_GETTHUMB: /* this one is used by NT notepad */
4840 case EM_GETTHUMB16:
4841 {
4842 LRESULT ret;
4843 if(wnd->dwStyle & WS_VSCROLL)
4844 ret = GetScrollPos(wnd->hwndSelf, SB_VERT);
4845 else
4846 {
4847 /* Assume default scroll range 0-100 */
4848 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
4849 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4850 }
4851 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4852 return ret;
4853 }
4854 case EM_LINESCROLL16:
4855 TRACE("EM_LINESCROLL16 %d\n", pos);
4856 dy = pos;
4857 break;
4858
4859 default:
4860 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4861 action, action);
4862 return 0;
4863 }
4864 if (dy)
4865 EDIT_EM_LineScroll(wnd, es, 0, dy);
4866 return 0;
4867 }
4868
4869 /*********************************************************************
4870 *
4871 * EDIT_UpdateText
4872 *
4873 */
4874 static void EDIT_UpdateTextRegion(WND *wnd, HRGN hrgn, BOOL bErase)
4875 {
4876 EDITSTATE *es = *(EDITSTATE **)((wnd)->wExtra);
4877
4878 if (es->flags & EF_UPDATE)
4879 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4880
4881 InvalidateRgn(wnd->hwndSelf, hrgn, bErase);
4882 }
4883
4884
4885 /*********************************************************************
4886 *
4887 * EDIT_UpdateText
4888 *
4889 */
4890 static void EDIT_UpdateText(WND *wnd, LPRECT rc, BOOL bErase)
4891 {
4892 EDITSTATE *es = *(EDITSTATE **)((wnd)->wExtra);
4893
4894 if (es->flags & EF_UPDATE)
4895 EDIT_NOTIFY_PARENT(es, EN_UPDATE, "EN_UPDATE");
4896
4897 InvalidateRect(wnd->hwndSelf, rc, bErase);
4898 }
Windows API implementation