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Protect against multiple includes.
[wine/multimedia.git] / controls / edit.c
blobd9ccbba148e426168677cee0c4c8fa4952560871
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 "windows.h"
15 #include "winnt.h"
16 #include "win.h"
17 #include "combo.h"
18 #include "local.h"
19 #include "resource.h"
20 #include "debug.h"
21 #include "callback.h"
22 #include "tweak.h"
23
24 #define BUFLIMIT_MULTI 65534 /* maximum buffer size (not including '\0')
25 FIXME: BTW, new specs say 65535 (do you dare ???) */
26 #define BUFLIMIT_SINGLE 32766 /* maximum buffer size (not including '\0') */
27 #define BUFSTART_MULTI 1024 /* starting size */
28 #define BUFSTART_SINGLE 256 /* starting size */
29 #define GROWLENGTH 64 /* buffers grow by this much */
30 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
31
32 /*
33 * extra flags for EDITSTATE.flags field
34 */
35 #define EF_MODIFIED 0x0001 /* text has been modified */
36 #define EF_FOCUSED 0x0002 /* we have input focus */
37 #define EF_UPDATE 0x0004 /* notify parent of changed state on next WM_PAINT */
38 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
39 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
40 #define EF_VSCROLL_HACK 0x0020 /* we already have informed the user of the hacked handler */
41 #define EF_HSCROLL_HACK 0x0040 /* we already have informed the user of the hacked handler */
42 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
43 wrapped line, instead of in front of the next character */
44 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
45
46 typedef enum
47 {
48 END_0 = 0, /* line ends with terminating '\0' character */
49 END_WRAP, /* line is wrapped */
50 END_HARD, /* line ends with a hard return '\r\n' */
51 END_SOFT /* line ends with a soft return '\r\r\n' */
52 } LINE_END;
53
54 typedef struct tagLINEDEF {
55 INT32 length; /* bruto length of a line in bytes */
56 INT32 net_length; /* netto length of a line in visible characters */
57 LINE_END ending;
58 INT32 width; /* width of the line in pixels */
59 struct tagLINEDEF *next;
60 } LINEDEF;
61
62 typedef struct
63 {
64 HANDLE32 heap; /* our own heap */
65 LPSTR text; /* the actual contents of the control */
66 INT32 buffer_size; /* the size of the buffer */
67 INT32 buffer_limit; /* the maximum size to which the buffer may grow */
68 HFONT32 font; /* NULL means standard system font */
69 INT32 x_offset; /* scroll offset for multi lines this is in pixels
70 for single lines it's in characters */
71 INT32 line_height; /* height of a screen line in pixels */
72 INT32 char_width; /* average character width in pixels */
73 DWORD style; /* sane version of wnd->dwStyle */
74 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
75 INT32 undo_insert_count; /* number of characters inserted in sequence */
76 INT32 undo_position; /* character index of the insertion and deletion */
77 LPSTR undo_text; /* deleted text */
78 INT32 undo_buffer_size; /* size of the deleted text buffer */
79 INT32 selection_start; /* == selection_end if no selection */
80 INT32 selection_end; /* == current caret position */
81 CHAR password_char; /* == 0 if no password char, and for multi line controls */
82 INT32 left_margin; /* in pixels */
83 INT32 right_margin; /* in pixels */
84 RECT32 format_rect;
85 INT32 region_posx; /* Position of cursor relative to region: */
86 INT32 region_posy; /* -1: to left, 0: within, 1: to right */
87 EDITWORDBREAKPROC16 word_break_proc16;
88 EDITWORDBREAKPROC32A word_break_proc32A;
89 INT32 line_count; /* number of lines */
90 INT32 y_offset; /* scroll offset in number of lines */
91 /*
92 * only for multi line controls
93 */
94 INT32 lock_count; /* amount of re-entries in the EditWndProc */
95 INT32 tabs_count;
96 LPINT32 tabs;
97 INT32 text_width; /* width of the widest line in pixels */
98 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
99 HLOCAL16 hloc16; /* for controls receiving EM_GETHANDLE16 */
100 HLOCAL32 hloc32; /* for controls receiving EM_GETHANDLE */
101 } EDITSTATE;
102
103
104 #define SWAP_INT32(x,y) do { INT32 temp = (INT32)(x); (x) = (INT32)(y); (y) = temp; } while(0)
105 #define ORDER_INT32(x,y) do { if ((INT32)(y) < (INT32)(x)) SWAP_INT32((x),(y)); } while(0)
106
107 #define SWAP_UINT32(x,y) do { UINT32 temp = (UINT32)(x); (x) = (UINT32)(y); (y) = temp; } while(0)
108 #define ORDER_UINT32(x,y) do { if ((UINT32)(y) < (UINT32)(x)) SWAP_UINT32((x),(y)); } while(0)
109
110 #define DPRINTF_EDIT_NOTIFY(hwnd, str) \
111 ({TRACE(edit, "notification " str " sent to hwnd=%08x\n", \
112 (UINT32)(hwnd));})
113
114 #define EDIT_SEND_CTLCOLOR(wnd,hdc) \
115 (SendMessage32A((wnd)->parent->hwndSelf, WM_CTLCOLOREDIT, \
116 (WPARAM32)(hdc), (LPARAM)(wnd)->hwndSelf))
117 #define EDIT_NOTIFY_PARENT(wnd, wNotifyCode, str) \
118 (DPRINTF_EDIT_NOTIFY((wnd)->parent->hwndSelf, str), \
119 SendMessage32A((wnd)->parent->hwndSelf, WM_COMMAND, \
120 MAKEWPARAM((wnd)->wIDmenu, wNotifyCode), \
121 (LPARAM)(wnd)->hwndSelf))
122 #define DPRINTF_EDIT_MSG16(str) \
123 TRACE(edit, \
124 "16 bit : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
125 (UINT32)hwnd, (UINT32)wParam, (UINT32)lParam)
126 #define DPRINTF_EDIT_MSG32(str) \
127 TRACE(edit, \
128 "32 bit : " str ": hwnd=%08x, wParam=%08x, lParam=%08x\n", \
129 (UINT32)hwnd, (UINT32)wParam, (UINT32)lParam)
130
131 /*********************************************************************
132 *
133 * Declarations
134 *
135 */
136
137 /*
138 * These functions have trivial implementations
139 * We still like to call them internally
140 * "static __inline__" makes them more like macro's
141 */
142 static __inline__ BOOL32 EDIT_EM_CanUndo(WND *wnd, EDITSTATE *es);
143 static __inline__ void EDIT_EM_EmptyUndoBuffer(WND *wnd, EDITSTATE *es);
144 static __inline__ void EDIT_WM_Clear(WND *wnd, EDITSTATE *es);
145 static __inline__ void EDIT_WM_Cut(WND *wnd, EDITSTATE *es);
146 /*
147 * This is the only exported function
148 */
149 LRESULT WINAPI EditWndProc( HWND32 hwnd, UINT32 msg,
150 WPARAM32 wParam, LPARAM lParam );
151 /*
152 * Helper functions only valid for one type of control
153 */
154 static void EDIT_BuildLineDefs_ML(WND *wnd, EDITSTATE *es);
155 static LPSTR EDIT_GetPasswordPointer_SL(WND *wnd, EDITSTATE *es);
156 static void EDIT_MoveDown_ML(WND *wnd, EDITSTATE *es, BOOL32 extend);
157 static void EDIT_MovePageDown_ML(WND *wnd, EDITSTATE *es, BOOL32 extend);
158 static void EDIT_MovePageUp_ML(WND *wnd, EDITSTATE *es, BOOL32 extend);
159 static void EDIT_MoveUp_ML(WND *wnd, EDITSTATE *es, BOOL32 extend);
160 /*
161 * Helper functions valid for both single line _and_ multi line controls
162 */
163 static INT32 EDIT_CallWordBreakProc(WND *wnd, EDITSTATE *es, INT32 start, INT32 index, INT32 count, INT32 action);
164 static INT32 EDIT_CharFromPos(WND *wnd, EDITSTATE *es, INT32 x, INT32 y, LPBOOL32 after_wrap);
165 static void EDIT_ConfinePoint(WND *wnd, EDITSTATE *es, LPINT32 x, LPINT32 y);
166 static void EDIT_GetLineRect(WND *wnd, EDITSTATE *es, INT32 line, INT32 scol, INT32 ecol, LPRECT32 rc);
167 static void EDIT_InvalidateText(WND *wnd, EDITSTATE *es, INT32 start, INT32 end);
168 static void EDIT_LockBuffer(WND *wnd, EDITSTATE *es);
169 static BOOL32 EDIT_MakeFit(WND *wnd, EDITSTATE *es, INT32 size);
170 static BOOL32 EDIT_MakeUndoFit(WND *wnd, EDITSTATE *es, INT32 size);
171 static void EDIT_MoveBackward(WND *wnd, EDITSTATE *es, BOOL32 extend);
172 static void EDIT_MoveEnd(WND *wnd, EDITSTATE *es, BOOL32 extend);
173 static void EDIT_MoveForward(WND *wnd, EDITSTATE *es, BOOL32 extend);
174 static void EDIT_MoveHome(WND *wnd, EDITSTATE *es, BOOL32 extend);
175 static void EDIT_MoveWordBackward(WND *wnd, EDITSTATE *es, BOOL32 extend);
176 static void EDIT_MoveWordForward(WND *wnd, EDITSTATE *es, BOOL32 extend);
177 static void EDIT_PaintLine(WND *wnd, EDITSTATE *es, HDC32 hdc, INT32 line, BOOL32 rev);
178 static INT32 EDIT_PaintText(WND *wnd, EDITSTATE *es, HDC32 hdc, INT32 x, INT32 y, INT32 line, INT32 col, INT32 count, BOOL32 rev);
179 static void EDIT_SetCaretPos(WND *wnd, EDITSTATE *es, INT32 pos, BOOL32 after_wrap);
180 static void EDIT_SetRectNP(WND *wnd, EDITSTATE *es, LPRECT32 lprc);
181 static void EDIT_UnlockBuffer(WND *wnd, EDITSTATE *es, BOOL32 force);
182 static INT32 EDIT_WordBreakProc(LPSTR s, INT32 index, INT32 count, INT32 action);
183 /*
184 * EM_XXX message handlers
185 */
186 static LRESULT EDIT_EM_CharFromPos(WND *wnd, EDITSTATE *es, INT32 x, INT32 y);
187 static BOOL32 EDIT_EM_FmtLines(WND *wnd, EDITSTATE *es, BOOL32 add_eol);
188 static HLOCAL32 EDIT_EM_GetHandle(WND *wnd, EDITSTATE *es);
189 static HLOCAL16 EDIT_EM_GetHandle16(WND *wnd, EDITSTATE *es);
190 static INT32 EDIT_EM_GetLine(WND *wnd, EDITSTATE *es, INT32 line, LPSTR lpch);
191 static LRESULT EDIT_EM_GetSel(WND *wnd, EDITSTATE *es, LPUINT32 start, LPUINT32 end);
192 static LRESULT EDIT_EM_GetThumb(WND *wnd, EDITSTATE *es);
193 static INT32 EDIT_EM_LineFromChar(WND *wnd, EDITSTATE *es, INT32 index);
194 static INT32 EDIT_EM_LineIndex(WND *wnd, EDITSTATE *es, INT32 line);
195 static INT32 EDIT_EM_LineLength(WND *wnd, EDITSTATE *es, INT32 index);
196 static BOOL32 EDIT_EM_LineScroll(WND *wnd, EDITSTATE *es, INT32 dx, INT32 dy);
197 static LRESULT EDIT_EM_PosFromChar(WND *wnd, EDITSTATE *es, INT32 index, BOOL32 after_wrap);
198 static void EDIT_EM_ReplaceSel(WND *wnd, EDITSTATE *es, BOOL32 can_undo, LPCSTR lpsz_replace);
199 static LRESULT EDIT_EM_Scroll(WND *wnd, EDITSTATE *es, INT32 action);
200 static void EDIT_EM_ScrollCaret(WND *wnd, EDITSTATE *es);
201 static void EDIT_EM_SetHandle(WND *wnd, EDITSTATE *es, HLOCAL32 hloc);
202 static void EDIT_EM_SetHandle16(WND *wnd, EDITSTATE *es, HLOCAL16 hloc);
203 static void EDIT_EM_SetLimitText(WND *wnd, EDITSTATE *es, INT32 limit);
204 static void EDIT_EM_SetMargins(WND *wnd, EDITSTATE *es, INT32 action, INT32 left, INT32 right);
205 static void EDIT_EM_SetPasswordChar(WND *wnd, EDITSTATE *es, CHAR c);
206 static void EDIT_EM_SetSel(WND *wnd, EDITSTATE *es, UINT32 start, UINT32 end, BOOL32 after_wrap);
207 static BOOL32 EDIT_EM_SetTabStops(WND *wnd, EDITSTATE *es, INT32 count, LPINT32 tabs);
208 static BOOL32 EDIT_EM_SetTabStops16(WND *wnd, EDITSTATE *es, INT32 count, LPINT16 tabs);
209 static void EDIT_EM_SetWordBreakProc(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC32A wbp);
210 static void EDIT_EM_SetWordBreakProc16(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp);
211 static BOOL32 EDIT_EM_Undo(WND *wnd, EDITSTATE *es);
212 /*
213 * WM_XXX message handlers
214 */
215 static void EDIT_WM_Char(WND *wnd, EDITSTATE *es, CHAR c, DWORD key_data);
216 static void EDIT_WM_Command(WND *wnd, EDITSTATE *es, INT32 code, INT32 id, HWND32 conrtol);
217 static void EDIT_WM_ContextMenu(WND *wnd, EDITSTATE *es, HWND32 hwnd, INT32 x, INT32 y);
218 static void EDIT_WM_Copy(WND *wnd, EDITSTATE *es);
219 static LRESULT EDIT_WM_Create(WND *wnd, EDITSTATE *es, LPCREATESTRUCT32A cs);
220 static void EDIT_WM_Destroy(WND *wnd, EDITSTATE *es);
221 static LRESULT EDIT_WM_EraseBkGnd(WND *wnd, EDITSTATE *es, HDC32 dc);
222 static INT32 EDIT_WM_GetText(WND *wnd, EDITSTATE *es, INT32 count, LPSTR text);
223 static LRESULT EDIT_WM_HScroll(WND *wnd, EDITSTATE *es, INT32 action, INT32 pos, HWND32 scroll_bar);
224 static LRESULT EDIT_WM_KeyDown(WND *wnd, EDITSTATE *es, INT32 key, DWORD key_data);
225 static LRESULT EDIT_WM_KillFocus(WND *wnd, EDITSTATE *es, HWND32 window_getting_focus);
226 static LRESULT EDIT_WM_LButtonDblClk(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y);
227 static LRESULT EDIT_WM_LButtonDown(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y);
228 static LRESULT EDIT_WM_LButtonUp(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y);
229 static LRESULT EDIT_WM_MouseMove(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y);
230 static LRESULT EDIT_WM_NCCreate(WND *wnd, LPCREATESTRUCT32A cs);
231 static void EDIT_WM_Paint(WND *wnd, EDITSTATE *es);
232 static void EDIT_WM_Paste(WND *wnd, EDITSTATE *es);
233 static void EDIT_WM_SetFocus(WND *wnd, EDITSTATE *es, HWND32 window_losing_focus);
234 static void EDIT_WM_SetFont(WND *wnd, EDITSTATE *es, HFONT32 font, BOOL32 redraw);
235 static void EDIT_WM_SetText(WND *wnd, EDITSTATE *es, LPCSTR text);
236 static void EDIT_WM_Size(WND *wnd, EDITSTATE *es, UINT32 action, INT32 width, INT32 height);
237 static LRESULT EDIT_WM_SysKeyDown(WND *wnd, EDITSTATE *es, INT32 key, DWORD key_data);
238 static void EDIT_WM_Timer(WND *wnd, EDITSTATE *es, INT32 id, TIMERPROC32 timer_proc);
239 static LRESULT EDIT_WM_VScroll(WND *wnd, EDITSTATE *es, INT32 action, INT32 pos, HWND32 scroll_bar);
240
241
242 /*********************************************************************
243 *
244 * EM_CANUNDO
245 *
246 */
247 static __inline__ BOOL32 EDIT_EM_CanUndo(WND *wnd, EDITSTATE *es)
248 {
249 return (es->undo_insert_count || lstrlen32A(es->undo_text));
250 }
251
252
253 /*********************************************************************
254 *
255 * EM_EMPTYUNDOBUFFER
256 *
257 */
258 static __inline__ void EDIT_EM_EmptyUndoBuffer(WND *wnd, EDITSTATE *es)
259 {
260 es->undo_insert_count = 0;
261 *es->undo_text = '\0';
262 }
263
264
265 /*********************************************************************
266 *
267 * WM_CLEAR
268 *
269 */
270 static __inline__ void EDIT_WM_Clear(WND *wnd, EDITSTATE *es)
271 {
272 EDIT_EM_ReplaceSel(wnd, es, TRUE, "");
273 }
274
275
276 /*********************************************************************
277 *
278 * WM_CUT
279 *
280 */
281 static __inline__ void EDIT_WM_Cut(WND *wnd, EDITSTATE *es)
282 {
283 EDIT_WM_Copy(wnd, es);
284 EDIT_WM_Clear(wnd, es);
285 }
286
287
288 /*********************************************************************
289 *
290 * EditWndProc()
291 *
292 * The messages are in the order of the actual integer values
293 * (which can be found in include/windows.h)
294 * Whereever possible the 16 bit versions are converted to
295 * the 32 bit ones, so that we can 'fall through' to the
296 * helper functions. These are mostly 32 bit (with a few
297 * exceptions, clearly indicated by a '16' extension to their
298 * names).
299 *
300 */
301 LRESULT WINAPI EditWndProc( HWND32 hwnd, UINT32 msg,
302 WPARAM32 wParam, LPARAM lParam )
303 {
304 WND *wnd = WIN_FindWndPtr(hwnd);
305 EDITSTATE *es = *(EDITSTATE **)((wnd)->wExtra);
306 LRESULT result = 0;
307
308 switch (msg) {
309 case WM_DESTROY:
310 DPRINTF_EDIT_MSG32("WM_DESTROY");
311 EDIT_WM_Destroy(wnd, es);
312 return 0;
313
314 case WM_NCCREATE:
315 DPRINTF_EDIT_MSG32("WM_NCCREATE");
316 return EDIT_WM_NCCreate(wnd, (LPCREATESTRUCT32A)lParam);
317 }
318
319 if (!es)
320 return DefWindowProc32A(hwnd, msg, wParam, lParam);
321
322 EDIT_LockBuffer(wnd, es);
323 switch (msg) {
324 case EM_GETSEL16:
325 DPRINTF_EDIT_MSG16("EM_GETSEL");
326 wParam = 0;
327 lParam = 0;
328 /* fall through */
329 case EM_GETSEL32:
330 DPRINTF_EDIT_MSG32("EM_GETSEL");
331 result = EDIT_EM_GetSel(wnd, es, (LPUINT32)wParam, (LPUINT32)lParam);
332 break;
333
334 case EM_SETSEL16:
335 DPRINTF_EDIT_MSG16("EM_SETSEL");
336 if (SLOWORD(lParam) == -1)
337 EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
338 else
339 EDIT_EM_SetSel(wnd, es, LOWORD(lParam), HIWORD(lParam), FALSE);
340 if (!wParam)
341 EDIT_EM_ScrollCaret(wnd, es);
342 result = 1;
343 break;
344 case EM_SETSEL32:
345 DPRINTF_EDIT_MSG32("EM_SETSEL");
346 EDIT_EM_SetSel(wnd, es, wParam, lParam, FALSE);
347 result = 1;
348 break;
349
350 case EM_GETRECT16:
351 DPRINTF_EDIT_MSG16("EM_GETRECT");
352 if (lParam)
353 CONV_RECT32TO16(&es->format_rect, (LPRECT16)PTR_SEG_TO_LIN(lParam));
354 break;
355 case EM_GETRECT32:
356 DPRINTF_EDIT_MSG32("EM_GETRECT");
357 if (lParam)
358 CopyRect32((LPRECT32)lParam, &es->format_rect);
359 break;
360
361 case EM_SETRECT16:
362 DPRINTF_EDIT_MSG16("EM_SETRECT");
363 if ((es->style & ES_MULTILINE) && lParam) {
364 RECT32 rc;
365 CONV_RECT16TO32((LPRECT16)PTR_SEG_TO_LIN(lParam), &rc);
366 EDIT_SetRectNP(wnd, es, &rc);
367 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
368 }
369 break;
370 case EM_SETRECT32:
371 DPRINTF_EDIT_MSG32("EM_SETRECT");
372 if ((es->style & ES_MULTILINE) && lParam) {
373 EDIT_SetRectNP(wnd, es, (LPRECT32)lParam);
374 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
375 }
376 break;
377
378 case EM_SETRECTNP16:
379 DPRINTF_EDIT_MSG16("EM_SETRECTNP");
380 if ((es->style & ES_MULTILINE) && lParam) {
381 RECT32 rc;
382 CONV_RECT16TO32((LPRECT16)PTR_SEG_TO_LIN(lParam), &rc);
383 EDIT_SetRectNP(wnd, es, &rc);
384 }
385 break;
386 case EM_SETRECTNP32:
387 DPRINTF_EDIT_MSG32("EM_SETRECTNP");
388 if ((es->style & ES_MULTILINE) && lParam)
389 EDIT_SetRectNP(wnd, es, (LPRECT32)lParam);
390 break;
391
392 case EM_SCROLL16:
393 DPRINTF_EDIT_MSG16("EM_SCROLL");
394 /* fall through */
395 case EM_SCROLL32:
396 DPRINTF_EDIT_MSG32("EM_SCROLL");
397 result = EDIT_EM_Scroll(wnd, es, (INT32)wParam);
398 break;
399
400 case EM_LINESCROLL16:
401 DPRINTF_EDIT_MSG16("EM_LINESCROLL");
402 wParam = (WPARAM32)(INT32)SHIWORD(lParam);
403 lParam = (LPARAM)(INT32)SLOWORD(lParam);
404 /* fall through */
405 case EM_LINESCROLL32:
406 DPRINTF_EDIT_MSG32("EM_LINESCROLL");
407 result = (LRESULT)EDIT_EM_LineScroll(wnd, es, (INT32)wParam, (INT32)lParam);
408 break;
409
410 case EM_SCROLLCARET16:
411 DPRINTF_EDIT_MSG16("EM_SCROLLCARET");
412 /* fall through */
413 case EM_SCROLLCARET32:
414 DPRINTF_EDIT_MSG32("EM_SCROLLCARET");
415 EDIT_EM_ScrollCaret(wnd, es);
416 result = 1;
417 break;
418
419 case EM_GETMODIFY16:
420 DPRINTF_EDIT_MSG16("EM_GETMODIFY");
421 /* fall through */
422 case EM_GETMODIFY32:
423 DPRINTF_EDIT_MSG32("EM_GETMODIFY");
424 return ((es->flags & EF_MODIFIED) != 0);
425 break;
426
427 case EM_SETMODIFY16:
428 DPRINTF_EDIT_MSG16("EM_SETMODIFY");
429 /* fall through */
430 case EM_SETMODIFY32:
431 DPRINTF_EDIT_MSG32("EM_SETMODIFY");
432 if (wParam)
433 es->flags |= EF_MODIFIED;
434 else
435 es->flags &= ~EF_MODIFIED;
436 break;
437
438 case EM_GETLINECOUNT16:
439 DPRINTF_EDIT_MSG16("EM_GETLINECOUNT");
440 /* fall through */
441 case EM_GETLINECOUNT32:
442 DPRINTF_EDIT_MSG32("EM_GETLINECOUNT");
443 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
444 break;
445
446 case EM_LINEINDEX16:
447 DPRINTF_EDIT_MSG16("EM_LINEINDEX");
448 if ((INT16)wParam == -1)
449 wParam = (WPARAM32)-1;
450 /* fall through */
451 case EM_LINEINDEX32:
452 DPRINTF_EDIT_MSG32("EM_LINEINDEX");
453 result = (LRESULT)EDIT_EM_LineIndex(wnd, es, (INT32)wParam);
454 break;
455
456 case EM_SETHANDLE16:
457 DPRINTF_EDIT_MSG16("EM_SETHANDLE");
458 EDIT_EM_SetHandle16(wnd, es, (HLOCAL16)wParam);
459 break;
460 case EM_SETHANDLE32:
461 DPRINTF_EDIT_MSG32("EM_SETHANDLE");
462 EDIT_EM_SetHandle(wnd, es, (HLOCAL32)wParam);
463 break;
464
465 case EM_GETHANDLE16:
466 DPRINTF_EDIT_MSG16("EM_GETHANDLE");
467 result = (LRESULT)EDIT_EM_GetHandle16(wnd, es);
468 break;
469 case EM_GETHANDLE32:
470 DPRINTF_EDIT_MSG32("EM_GETHANDLE");
471 result = (LRESULT)EDIT_EM_GetHandle(wnd, es);
472 break;
473
474 case EM_GETTHUMB16:
475 DPRINTF_EDIT_MSG16("EM_GETTHUMB");
476 /* fall through */
477 case EM_GETTHUMB32:
478 DPRINTF_EDIT_MSG32("EM_GETTHUMB");
479 result = EDIT_EM_GetThumb(wnd, es);
480 break;
481
482 /* messages 0x00bf and 0x00c0 missing from specs */
483
484 case WM_USER+15:
485 DPRINTF_EDIT_MSG16("undocumented WM_USER+15, please report");
486 /* fall through */
487 case 0x00bf:
488 DPRINTF_EDIT_MSG32("undocumented 0x00bf, please report");
489 result = DefWindowProc32A(hwnd, msg, wParam, lParam);
490 break;
491
492 case WM_USER+16:
493 DPRINTF_EDIT_MSG16("undocumented WM_USER+16, please report");
494 /* fall through */
495 case 0x00c0:
496 DPRINTF_EDIT_MSG32("undocumented 0x00c0, please report");
497 result = DefWindowProc32A(hwnd, msg, wParam, lParam);
498 break;
499
500 case EM_LINELENGTH16:
501 DPRINTF_EDIT_MSG16("EM_LINELENGTH");
502 /* fall through */
503 case EM_LINELENGTH32:
504 DPRINTF_EDIT_MSG32("EM_LINELENGTH");
505 result = (LRESULT)EDIT_EM_LineLength(wnd, es, (INT32)wParam);
506 break;
507
508 case EM_REPLACESEL16:
509 DPRINTF_EDIT_MSG16("EM_REPLACESEL");
510 lParam = (LPARAM)PTR_SEG_TO_LIN((SEGPTR)lParam);
511 /* fall through */
512 case EM_REPLACESEL32:
513 DPRINTF_EDIT_MSG32("EM_REPLACESEL");
514 EDIT_EM_ReplaceSel(wnd, es, (BOOL32)wParam, (LPCSTR)lParam);
515 result = 1;
516 break;
517
518 /* message 0x00c3 missing from specs */
519
520 case WM_USER+19:
521 DPRINTF_EDIT_MSG16("undocumented WM_USER+19, please report");
522 /* fall through */
523 case 0x00c3:
524 DPRINTF_EDIT_MSG32("undocumented 0x00c3, please report");
525 result = DefWindowProc32A(hwnd, msg, wParam, lParam);
526 break;
527
528 case EM_GETLINE16:
529 DPRINTF_EDIT_MSG16("EM_GETLINE");
530 lParam = (LPARAM)PTR_SEG_TO_LIN((SEGPTR)lParam);
531 /* fall through */
532 case EM_GETLINE32:
533 DPRINTF_EDIT_MSG32("EM_GETLINE");
534 result = (LRESULT)EDIT_EM_GetLine(wnd, es, (INT32)wParam, (LPSTR)lParam);
535 break;
536
537 case EM_LIMITTEXT16:
538 DPRINTF_EDIT_MSG16("EM_LIMITTEXT");
539 /* fall through */
540 case EM_SETLIMITTEXT32:
541 DPRINTF_EDIT_MSG32("EM_SETLIMITTEXT");
542 EDIT_EM_SetLimitText(wnd, es, (INT32)wParam);
543 break;
544
545 case EM_CANUNDO16:
546 DPRINTF_EDIT_MSG16("EM_CANUNDO");
547 /* fall through */
548 case EM_CANUNDO32:
549 DPRINTF_EDIT_MSG32("EM_CANUNDO");
550 result = (LRESULT)EDIT_EM_CanUndo(wnd, es);
551 break;
552
553 case EM_UNDO16:
554 DPRINTF_EDIT_MSG16("EM_UNDO");
555 /* fall through */
556 case EM_UNDO32:
557 /* fall through */
558 case WM_UNDO:
559 DPRINTF_EDIT_MSG32("EM_UNDO / WM_UNDO");
560 result = (LRESULT)EDIT_EM_Undo(wnd, es);
561 break;
562
563 case EM_FMTLINES16:
564 DPRINTF_EDIT_MSG16("EM_FMTLINES");
565 /* fall through */
566 case EM_FMTLINES32:
567 DPRINTF_EDIT_MSG32("EM_FMTLINES");
568 result = (LRESULT)EDIT_EM_FmtLines(wnd, es, (BOOL32)wParam);
569 break;
570
571 case EM_LINEFROMCHAR16:
572 DPRINTF_EDIT_MSG16("EM_LINEFROMCHAR");
573 /* fall through */
574 case EM_LINEFROMCHAR32:
575 DPRINTF_EDIT_MSG32("EM_LINEFROMCHAR");
576 result = (LRESULT)EDIT_EM_LineFromChar(wnd, es, (INT32)wParam);
577 break;
578
579 /* message 0x00ca missing from specs */
580
581 case WM_USER+26:
582 DPRINTF_EDIT_MSG16("undocumented WM_USER+26, please report");
583 /* fall through */
584 case 0x00ca:
585 DPRINTF_EDIT_MSG32("undocumented 0x00ca, please report");
586 result = DefWindowProc32A(hwnd, msg, wParam, lParam);
587 break;
588
589 case EM_SETTABSTOPS16:
590 DPRINTF_EDIT_MSG16("EM_SETTABSTOPS");
591 result = (LRESULT)EDIT_EM_SetTabStops16(wnd, es, (INT32)wParam, (LPINT16)PTR_SEG_TO_LIN((SEGPTR)lParam));
592 break;
593 case EM_SETTABSTOPS32:
594 DPRINTF_EDIT_MSG32("EM_SETTABSTOPS");
595 result = (LRESULT)EDIT_EM_SetTabStops(wnd, es, (INT32)wParam, (LPINT32)lParam);
596 break;
597
598 case EM_SETPASSWORDCHAR16:
599 DPRINTF_EDIT_MSG16("EM_SETPASSWORDCHAR");
600 /* fall through */
601 case EM_SETPASSWORDCHAR32:
602 DPRINTF_EDIT_MSG32("EM_SETPASSWORDCHAR");
603 EDIT_EM_SetPasswordChar(wnd, es, (CHAR)wParam);
604 break;
605
606 case EM_EMPTYUNDOBUFFER16:
607 DPRINTF_EDIT_MSG16("EM_EMPTYUNDOBUFFER");
608 /* fall through */
609 case EM_EMPTYUNDOBUFFER32:
610 DPRINTF_EDIT_MSG32("EM_EMPTYUNDOBUFFER");
611 EDIT_EM_EmptyUndoBuffer(wnd, es);
612 break;
613
614 case EM_GETFIRSTVISIBLELINE16:
615 DPRINTF_EDIT_MSG16("EM_GETFIRSTVISIBLELINE");
616 result = es->y_offset;
617 break;
618 case EM_GETFIRSTVISIBLELINE32:
619 DPRINTF_EDIT_MSG32("EM_GETFIRSTVISIBLELINE");
620 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
621 break;
622
623 case EM_SETREADONLY16:
624 DPRINTF_EDIT_MSG16("EM_SETREADONLY");
625 /* fall through */
626 case EM_SETREADONLY32:
627 DPRINTF_EDIT_MSG32("EM_SETREADONLY");
628 if (wParam) {
629 wnd->dwStyle |= ES_READONLY;
630 es->style |= ES_READONLY;
631 } else {
632 wnd->dwStyle &= ~ES_READONLY;
633 es->style &= ~ES_READONLY;
634 }
635 return 1;
636 break;
637
638 case EM_SETWORDBREAKPROC16:
639 DPRINTF_EDIT_MSG16("EM_SETWORDBREAKPROC");
640 EDIT_EM_SetWordBreakProc16(wnd, es, (EDITWORDBREAKPROC16)lParam);
641 break;
642 case EM_SETWORDBREAKPROC32:
643 DPRINTF_EDIT_MSG32("EM_SETWORDBREAKPROC");
644 EDIT_EM_SetWordBreakProc(wnd, es, (EDITWORDBREAKPROC32A)lParam);
645 break;
646
647 case EM_GETWORDBREAKPROC16:
648 DPRINTF_EDIT_MSG16("EM_GETWORDBREAKPROC");
649 result = (LRESULT)es->word_break_proc16;
650 break;
651 case EM_GETWORDBREAKPROC32:
652 DPRINTF_EDIT_MSG32("EM_GETWORDBREAKPROC");
653 result = (LRESULT)es->word_break_proc32A;
654 break;
655
656 case EM_GETPASSWORDCHAR16:
657 DPRINTF_EDIT_MSG16("EM_GETPASSWORDCHAR");
658 /* fall through */
659 case EM_GETPASSWORDCHAR32:
660 DPRINTF_EDIT_MSG32("EM_GETPASSWORDCHAR");
661 result = es->password_char;
662 break;
663
664 /* The following EM_xxx are new to win95 and don't exist for 16 bit */
665
666 case EM_SETMARGINS32:
667 DPRINTF_EDIT_MSG32("EM_SETMARGINS");
668 EDIT_EM_SetMargins(wnd, es, (INT32)wParam, SLOWORD(lParam), SHIWORD(lParam));
669 break;
670
671 case EM_GETMARGINS32:
672 DPRINTF_EDIT_MSG32("EM_GETMARGINS");
673 result = MAKELONG(es->left_margin, es->right_margin);
674 break;
675
676 case EM_GETLIMITTEXT32:
677 DPRINTF_EDIT_MSG32("EM_GETLIMITTEXT");
678 result = es->buffer_limit;
679 break;
680
681 case EM_POSFROMCHAR32:
682 DPRINTF_EDIT_MSG32("EM_POSFROMCHAR");
683 result = EDIT_EM_PosFromChar(wnd, es, (INT32)wParam, FALSE);
684 break;
685
686 case EM_CHARFROMPOS32:
687 DPRINTF_EDIT_MSG32("EM_CHARFROMPOS");
688 result = EDIT_EM_CharFromPos(wnd, es, SLOWORD(lParam), SHIWORD(lParam));
689 break;
690
691 case WM_GETDLGCODE:
692 DPRINTF_EDIT_MSG32("WM_GETDLGCODE");
693 result = (es->style & ES_MULTILINE) ?
694 DLGC_WANTALLKEYS | DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS :
695 DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
696 break;
697
698 case WM_CHAR:
699 DPRINTF_EDIT_MSG32("WM_CHAR");
700 EDIT_WM_Char(wnd, es, (CHAR)wParam, (DWORD)lParam);
701 break;
702
703 case WM_CLEAR:
704 DPRINTF_EDIT_MSG32("WM_CLEAR");
705 EDIT_WM_Clear(wnd, es);
706 break;
707
708 case WM_COMMAND:
709 DPRINTF_EDIT_MSG32("WM_COMMAND");
710 EDIT_WM_Command(wnd, es, HIWORD(wParam), LOWORD(wParam), (HWND32)lParam);
711 break;
712
713 case WM_CONTEXTMENU:
714 DPRINTF_EDIT_MSG32("WM_CONTEXTMENU");
715 EDIT_WM_ContextMenu(wnd, es, (HWND32)wParam, SLOWORD(lParam), SHIWORD(lParam));
716 break;
717
718 case WM_COPY:
719 DPRINTF_EDIT_MSG32("WM_COPY");
720 EDIT_WM_Copy(wnd, es);
721 break;
722
723 case WM_CREATE:
724 DPRINTF_EDIT_MSG32("WM_CREATE");
725 result = EDIT_WM_Create(wnd, es, (LPCREATESTRUCT32A)lParam);
726 break;
727
728 case WM_CUT:
729 DPRINTF_EDIT_MSG32("WM_CUT");
730 EDIT_WM_Cut(wnd, es);
731 break;
732
733 case WM_ENABLE:
734 DPRINTF_EDIT_MSG32("WM_ENABLE");
735 InvalidateRect32(hwnd, NULL, TRUE);
736 break;
737
738 case WM_ERASEBKGND:
739 DPRINTF_EDIT_MSG32("WM_ERASEBKGND");
740 result = EDIT_WM_EraseBkGnd(wnd, es, (HDC32)wParam);
741 break;
742
743 case WM_GETFONT:
744 DPRINTF_EDIT_MSG32("WM_GETFONT");
745 result = (LRESULT)es->font;
746 break;
747
748 case WM_GETTEXT:
749 DPRINTF_EDIT_MSG32("WM_GETTEXT");
750 result = (LRESULT)EDIT_WM_GetText(wnd, es, (INT32)wParam, (LPSTR)lParam);
751 break;
752
753 case WM_GETTEXTLENGTH:
754 DPRINTF_EDIT_MSG32("WM_GETTEXTLENGTH");
755 result = lstrlen32A(es->text);
756 break;
757
758 case WM_HSCROLL:
759 DPRINTF_EDIT_MSG32("WM_HSCROLL");
760 result = EDIT_WM_HScroll(wnd, es, LOWORD(wParam), SHIWORD(wParam), (HWND32)lParam);
761 break;
762
763 case WM_KEYDOWN:
764 DPRINTF_EDIT_MSG32("WM_KEYDOWN");
765 result = EDIT_WM_KeyDown(wnd, es, (INT32)wParam, (DWORD)lParam);
766 break;
767
768 case WM_KILLFOCUS:
769 DPRINTF_EDIT_MSG32("WM_KILLFOCUS");
770 result = EDIT_WM_KillFocus(wnd, es, (HWND32)wParam);
771 break;
772
773 case WM_LBUTTONDBLCLK:
774 DPRINTF_EDIT_MSG32("WM_LBUTTONDBLCLK");
775 result = EDIT_WM_LButtonDblClk(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
776 break;
777
778 case WM_LBUTTONDOWN:
779 DPRINTF_EDIT_MSG32("WM_LBUTTONDOWN");
780 result = EDIT_WM_LButtonDown(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
781 break;
782
783 case WM_LBUTTONUP:
784 DPRINTF_EDIT_MSG32("WM_LBUTTONUP");
785 result = EDIT_WM_LButtonUp(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
786 break;
787
788 case WM_MOUSEACTIVATE:
789 /*
790 * FIXME: maybe DefWindowProc() screws up, but it seems that
791 * modalless dialog boxes need this. If we don't do this, the focus
792 * will _not_ be set by DefWindowProc() for edit controls in a
793 * modalless dialog box ???
794 */
795 DPRINTF_EDIT_MSG32("WM_MOUSEACTIVATE");
796 SetFocus32(wnd->hwndSelf);
797 result = MA_ACTIVATE;
798 break;
799
800 case WM_MOUSEMOVE:
801 /*
802 * DPRINTF_EDIT_MSG32("WM_MOUSEMOVE");
803 */
804 result = EDIT_WM_MouseMove(wnd, es, (DWORD)wParam, SLOWORD(lParam), SHIWORD(lParam));
805 break;
806
807 case WM_PAINT:
808 DPRINTF_EDIT_MSG32("WM_PAINT");
809 EDIT_WM_Paint(wnd, es);
810 break;
811
812 case WM_PASTE:
813 DPRINTF_EDIT_MSG32("WM_PASTE");
814 EDIT_WM_Paste(wnd, es);
815 break;
816
817 case WM_SETFOCUS:
818 DPRINTF_EDIT_MSG32("WM_SETFOCUS");
819 EDIT_WM_SetFocus(wnd, es, (HWND32)wParam);
820 break;
821
822 case WM_SETFONT:
823 DPRINTF_EDIT_MSG32("WM_SETFONT");
824 EDIT_WM_SetFont(wnd, es, (HFONT32)wParam, LOWORD(lParam) != 0);
825 break;
826
827 case WM_SETTEXT:
828 DPRINTF_EDIT_MSG32("WM_SETTEXT");
829 EDIT_WM_SetText(wnd, es, (LPCSTR)lParam);
830 result = TRUE;
831 break;
832
833 case WM_SIZE:
834 DPRINTF_EDIT_MSG32("WM_SIZE");
835 EDIT_WM_Size(wnd, es, (UINT32)wParam, LOWORD(lParam), HIWORD(lParam));
836 break;
837
838 case WM_SYSKEYDOWN:
839 DPRINTF_EDIT_MSG32("WM_SYSKEYDOWN");
840 result = EDIT_WM_SysKeyDown(wnd, es, (INT32)wParam, (DWORD)lParam);
841 break;
842
843 case WM_TIMER:
844 DPRINTF_EDIT_MSG32("WM_TIMER");
845 EDIT_WM_Timer(wnd, es, (INT32)wParam, (TIMERPROC32)lParam);
846 break;
847
848 case WM_VSCROLL:
849 DPRINTF_EDIT_MSG32("WM_VSCROLL");
850 result = EDIT_WM_VScroll(wnd, es, LOWORD(wParam), SHIWORD(wParam), (HWND32)(lParam));
851 break;
852
853 default:
854 result = DefWindowProc32A(hwnd, msg, wParam, lParam);
855 break;
856 }
857 EDIT_UnlockBuffer(wnd, es, FALSE);
858 return result;
859 }
860
861
862 /*********************************************************************
863 *
864 * EDIT_BuildLineDefs_ML
865 *
866 * Build linked list of text lines.
867 * Lines can end with '\0' (last line), a character (if it is wrapped),
868 * a soft return '\r\r\n' or a hard return '\r\n'
869 *
870 */
871 static void EDIT_BuildLineDefs_ML(WND *wnd, EDITSTATE *es)
872 {
873 HDC32 dc;
874 HFONT32 old_font = 0;
875 LPSTR start, cp;
876 INT32 fw;
877 LINEDEF *current_def;
878 LINEDEF **previous_next;
879
880 current_def = es->first_line_def;
881 do {
882 LINEDEF *next_def = current_def->next;
883 HeapFree(es->heap, 0, current_def);
884 current_def = next_def;
885 } while (current_def);
886 es->line_count = 0;
887 es->text_width = 0;
888
889 dc = GetDC32(wnd->hwndSelf);
890 if (es->font)
891 old_font = SelectObject32(dc, es->font);
892
893 fw = es->format_rect.right - es->format_rect.left;
894 start = es->text;
895 previous_next = &es->first_line_def;
896 do {
897 current_def = HeapAlloc(es->heap, 0, sizeof(LINEDEF));
898 current_def->next = NULL;
899 cp = start;
900 while (*cp) {
901 if ((*cp == '\r') && (*(cp + 1) == '\n'))
902 break;
903 cp++;
904 }
905 if (!(*cp)) {
906 current_def->ending = END_0;
907 current_def->net_length = lstrlen32A(start);
908 } else if ((cp > start) && (*(cp - 1) == '\r')) {
909 current_def->ending = END_SOFT;
910 current_def->net_length = cp - start - 1;
911 } else {
912 current_def->ending = END_HARD;
913 current_def->net_length = cp - start;
914 }
915 current_def->width = (INT32)LOWORD(GetTabbedTextExtent32A(dc,
916 start, current_def->net_length,
917 es->tabs_count, es->tabs));
918 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
919 if ((!(es->style & ES_AUTOHSCROLL)) && (current_def->width > fw)) {
920 INT32 next = 0;
921 INT32 prev;
922 do {
923 prev = next;
924 next = EDIT_CallWordBreakProc(wnd, es, start - es->text,
925 prev + 1, current_def->net_length, WB_RIGHT);
926 current_def->width = (INT32)LOWORD(GetTabbedTextExtent32A(dc,
927 start, next, es->tabs_count, es->tabs));
928 } while (current_def->width <= fw);
929 if (!prev) {
930 next = 0;
931 do {
932 prev = next;
933 next++;
934 current_def->width = (INT32)LOWORD(GetTabbedTextExtent32A(dc,
935 start, next, es->tabs_count, es->tabs));
936 } while (current_def->width <= fw);
937 if (!prev)
938 prev = 1;
939 }
940 current_def->net_length = prev;
941 current_def->ending = END_WRAP;
942 current_def->width = (INT32)LOWORD(GetTabbedTextExtent32A(dc, start,
943 current_def->net_length, es->tabs_count, es->tabs));
944 }
945 switch (current_def->ending) {
946 case END_SOFT:
947 current_def->length = current_def->net_length + 3;
948 break;
949 case END_HARD:
950 current_def->length = current_def->net_length + 2;
951 break;
952 case END_WRAP:
953 case END_0:
954 current_def->length = current_def->net_length;
955 break;
956 }
957 es->text_width = MAX(es->text_width, current_def->width);
958 start += current_def->length;
959 *previous_next = current_def;
960 previous_next = &current_def->next;
961 es->line_count++;
962 } while (current_def->ending != END_0);
963 if (es->font)
964 SelectObject32(dc, old_font);
965 ReleaseDC32(wnd->hwndSelf, dc);
966 }
967
968
969 /*********************************************************************
970 *
971 * EDIT_CallWordBreakProc
972 *
973 * Call appropriate WordBreakProc (internal or external).
974 *
975 * Note: The "start" argument should always be an index refering
976 * to es->text. The actual wordbreak proc might be
977 * 16 bit, so we can't always pass any 32 bit LPSTR.
978 * Hence we assume that es->text is the buffer that holds
979 * the string under examination (we can decide this for ourselves).
980 *
981 */
982 static INT32 EDIT_CallWordBreakProc(WND *wnd, EDITSTATE *es, INT32 start, INT32 index, INT32 count, INT32 action)
983 {
984 if (es->word_break_proc16) {
985 HLOCAL16 hloc16 = EDIT_EM_GetHandle16(wnd, es);
986 SEGPTR segptr = LocalLock16(hloc16);
987 INT32 ret = (INT32)Callbacks->CallWordBreakProc(es->word_break_proc16,
988 segptr + start, index, count, action);
989 LocalUnlock16(hloc16);
990 return ret;
991 }
992 else if (es->word_break_proc32A)
993 {
994 TRACE(relay, "(wordbrk=%p,str='%s',idx=%d,cnt=%d,act=%d)\n",
995 es->word_break_proc32A, es->text + start, index,
996 count, action );
997 return (INT32)es->word_break_proc32A( es->text + start, index,
998 count, action );
999 }
1000 else
1001 return EDIT_WordBreakProc(es->text + start, index, count, action);
1002 }
1003
1004
1005 /*********************************************************************
1006 *
1007 * EDIT_CharFromPos
1008 *
1009 * Beware: This is not the function called on EM_CHARFROMPOS
1010 * The position _can_ be outside the formatting / client
1011 * rectangle
1012 * The return value is only the character index
1013 *
1014 */
1015 static INT32 EDIT_CharFromPos(WND *wnd, EDITSTATE *es, INT32 x, INT32 y, LPBOOL32 after_wrap)
1016 {
1017 INT32 index;
1018 HDC32 dc;
1019 HFONT32 old_font = 0;
1020
1021 if (es->style & ES_MULTILINE) {
1022 INT32 line = (y - es->format_rect.top) / es->line_height + es->y_offset;
1023 INT32 line_index = 0;
1024 LINEDEF *line_def = es->first_line_def;
1025 INT32 low, high;
1026 while ((line > 0) && line_def->next) {
1027 line_index += line_def->length;
1028 line_def = line_def->next;
1029 line--;
1030 }
1031 x += es->x_offset - es->format_rect.left;
1032 if (x >= line_def->width) {
1033 if (after_wrap)
1034 *after_wrap = (line_def->ending == END_WRAP);
1035 return line_index + line_def->net_length;
1036 }
1037 if (x <= 0) {
1038 if (after_wrap)
1039 *after_wrap = FALSE;
1040 return line_index;
1041 }
1042 dc = GetDC32(wnd->hwndSelf);
1043 if (es->font)
1044 old_font = SelectObject32(dc, es->font);
1045 low = line_index + 1;
1046 high = line_index + line_def->net_length + 1;
1047 while (low < high - 1)
1048 {
1049 INT32 mid = (low + high) / 2;
1050 if (LOWORD(GetTabbedTextExtent32A(dc, es->text + line_index,mid - line_index, es->tabs_count, es->tabs)) > x) high = mid;
1051 else low = mid;
1052 }
1053 index = low;
1054
1055 if (after_wrap)
1056 *after_wrap = ((index == line_index + line_def->net_length) &&
1057 (line_def->ending == END_WRAP));
1058 } else {
1059 LPSTR text;
1060 SIZE32 size;
1061 if (after_wrap)
1062 *after_wrap = FALSE;
1063 x -= es->format_rect.left;
1064 if (!x)
1065 return es->x_offset;
1066 text = EDIT_GetPasswordPointer_SL(wnd, es);
1067 dc = GetDC32(wnd->hwndSelf);
1068 if (es->font)
1069 old_font = SelectObject32(dc, es->font);
1070 if (x < 0)
1071 {
1072 INT32 low = 0;
1073 INT32 high = es->x_offset;
1074 while (low < high - 1)
1075 {
1076 INT32 mid = (low + high) / 2;
1077 GetTextExtentPoint32A( dc, text + mid,
1078 es->x_offset - mid, &size );
1079 if (size.cx > -x) low = mid;
1080 else high = mid;
1081 }
1082 index = low;
1083 }
1084 else
1085 {
1086 INT32 low = es->x_offset;
1087 INT32 high = lstrlen32A(es->text) + 1;
1088 while (low < high - 1)
1089 {
1090 INT32 mid = (low + high) / 2;
1091 GetTextExtentPoint32A( dc, text + es->x_offset,
1092 mid - es->x_offset, &size );
1093 if (size.cx > x) high = mid;
1094 else low = mid;
1095 }
1096 index = low;
1097 }
1098 if (es->style & ES_PASSWORD)
1099 HeapFree(es->heap, 0 ,text);
1100 }
1101 if (es->font)
1102 SelectObject32(dc, old_font);
1103 ReleaseDC32(wnd->hwndSelf, dc);
1104 return index;
1105 }
1106
1107
1108 /*********************************************************************
1109 *
1110 * EDIT_ConfinePoint
1111 *
1112 * adjusts the point to be within the formatting rectangle
1113 * (so CharFromPos returns the nearest _visible_ character)
1114 *
1115 */
1116 static void EDIT_ConfinePoint(WND *wnd, EDITSTATE *es, LPINT32 x, LPINT32 y)
1117 {
1118 *x = MIN(MAX(*x, es->format_rect.left), es->format_rect.right - 1);
1119 *y = MIN(MAX(*y, es->format_rect.top), es->format_rect.bottom - 1);
1120 }
1121
1122
1123 /*********************************************************************
1124 *
1125 * EDIT_GetLineRect
1126 *
1127 * Calculates the bounding rectangle for a line from a starting
1128 * column to an ending column.
1129 *
1130 */
1131 static void EDIT_GetLineRect(WND *wnd, EDITSTATE *es, INT32 line, INT32 scol, INT32 ecol, LPRECT32 rc)
1132 {
1133 INT32 line_index = EDIT_EM_LineIndex(wnd, es, line);
1134
1135 if (es->style & ES_MULTILINE)
1136 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1137 else
1138 rc->top = es->format_rect.top;
1139 rc->bottom = rc->top + es->line_height;
1140 rc->left = (scol == 0) ? es->format_rect.left : SLOWORD(EDIT_EM_PosFromChar(wnd, es, line_index + scol, TRUE));
1141 rc->right = (ecol == -1) ? es->format_rect.right : SLOWORD(EDIT_EM_PosFromChar(wnd, es, line_index + ecol, TRUE));
1142 }
1143
1144
1145 /*********************************************************************
1146 *
1147 * EDIT_GetPasswordPointer_SL
1148 *
1149 * note: caller should free the (optionally) allocated buffer
1150 *
1151 */
1152 static LPSTR EDIT_GetPasswordPointer_SL(WND *wnd, EDITSTATE *es)
1153 {
1154 if (es->style & ES_PASSWORD) {
1155 INT32 len = lstrlen32A(es->text);
1156 LPSTR text = HeapAlloc(es->heap, 0, len + 1);
1157 RtlFillMemory(text, len, es->password_char);
1158 text[len] = '\0';
1159 return text;
1160 } else
1161 return es->text;
1162 }
1163
1164
1165 /*********************************************************************
1166 *
1167 * EDIT_LockBuffer
1168 *
1169 * This acts as a LOCAL_Lock(), but it locks only once. This way
1170 * you can call it whenever you like, without unlocking.
1171 *
1172 */
1173 static void EDIT_LockBuffer(WND *wnd, EDITSTATE *es)
1174 {
1175 if (!es) {
1176 ERR(edit, "no EDITSTATE ... please report\n");
1177 return;
1178 }
1179 if (!(es->style & ES_MULTILINE))
1180 return;
1181 if (!es->text) {
1182 if (es->hloc32)
1183 es->text = LocalLock32(es->hloc32);
1184 else if (es->hloc16)
1185 es->text = LOCAL_Lock(wnd->hInstance, es->hloc16);
1186 else {
1187 ERR(edit, "no buffer ... please report\n");
1188 return;
1189 }
1190 }
1191 es->lock_count++;
1192 }
1193
1194
1195 /*********************************************************************
1196 *
1197 * EDIT_SL_InvalidateText
1198 *
1199 * Called from EDIT_InvalidateText().
1200 * Does the job for single-line controls only.
1201 *
1202 */
1203 static void EDIT_SL_InvalidateText(WND *wnd, EDITSTATE *es, INT32 start, INT32 end)
1204 {
1205 RECT32 line_rect;
1206 RECT32 rc;
1207
1208 EDIT_GetLineRect(wnd, es, 0, start, end, &line_rect);
1209 if (IntersectRect32(&rc, &line_rect, &es->format_rect))
1210 InvalidateRect32(wnd->hwndSelf, &rc, FALSE);
1211 }
1212
1213
1214 /*********************************************************************
1215 *
1216 * EDIT_ML_InvalidateText
1217 *
1218 * Called from EDIT_InvalidateText().
1219 * Does the job for multi-line controls only.
1220 *
1221 */
1222 static void EDIT_ML_InvalidateText(WND *wnd, EDITSTATE *es, INT32 start, INT32 end)
1223 {
1224 INT32 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1225 INT32 sl = EDIT_EM_LineFromChar(wnd, es, start);
1226 INT32 el = EDIT_EM_LineFromChar(wnd, es, end);
1227 INT32 sc;
1228 INT32 ec;
1229 RECT32 rc1;
1230 RECT32 rcWnd;
1231 RECT32 rcLine;
1232 RECT32 rcUpdate;
1233 INT32 l;
1234
1235 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1236 return;
1237
1238 sc = start - EDIT_EM_LineIndex(wnd, es, sl);
1239 ec = end - EDIT_EM_LineIndex(wnd, es, el);
1240 if (sl < es->y_offset) {
1241 sl = es->y_offset;
1242 sc = 0;
1243 }
1244 if (el > es->y_offset + vlc) {
1245 el = es->y_offset + vlc;
1246 ec = EDIT_EM_LineLength(wnd, es, EDIT_EM_LineIndex(wnd, es, el));
1247 }
1248 GetClientRect32(wnd->hwndSelf, &rc1);
1249 IntersectRect32(&rcWnd, &rc1, &es->format_rect);
1250 if (sl == el) {
1251 EDIT_GetLineRect(wnd, es, sl, sc, ec, &rcLine);
1252 if (IntersectRect32(&rcUpdate, &rcWnd, &rcLine))
1253 InvalidateRect32(wnd->hwndSelf, &rcUpdate, FALSE);
1254 } else {
1255 EDIT_GetLineRect(wnd, es, sl, sc,
1256 EDIT_EM_LineLength(wnd, es,
1257 EDIT_EM_LineIndex(wnd, es, sl)),
1258 &rcLine);
1259 if (IntersectRect32(&rcUpdate, &rcWnd, &rcLine))
1260 InvalidateRect32(wnd->hwndSelf, &rcUpdate, FALSE);
1261 for (l = sl + 1 ; l < el ; l++) {
1262 EDIT_GetLineRect(wnd, es, l, 0,
1263 EDIT_EM_LineLength(wnd, es,
1264 EDIT_EM_LineIndex(wnd, es, l)),
1265 &rcLine);
1266 if (IntersectRect32(&rcUpdate, &rcWnd, &rcLine))
1267 InvalidateRect32(wnd->hwndSelf, &rcUpdate, FALSE);
1268 }
1269 EDIT_GetLineRect(wnd, es, el, 0, ec, &rcLine);
1270 if (IntersectRect32(&rcUpdate, &rcWnd, &rcLine))
1271 InvalidateRect32(wnd->hwndSelf, &rcUpdate, FALSE);
1272 }
1273 }
1274
1275
1276 /*********************************************************************
1277 *
1278 * EDIT_InvalidateText
1279 *
1280 * Invalidate the text from offset start upto, but not including,
1281 * offset end. Useful for (re)painting the selection.
1282 * Regions outside the linewidth are not invalidated.
1283 * end == -1 means end == TextLength.
1284 * start and end need not be ordered.
1285 *
1286 */
1287 static void EDIT_InvalidateText(WND *wnd, EDITSTATE *es, INT32 start, INT32 end)
1288 {
1289 if (end == start)
1290 return;
1291
1292 if (end == -1)
1293 end = lstrlen32A(es->text);
1294
1295 ORDER_INT32(start, end);
1296
1297 if (es->style & ES_MULTILINE)
1298 EDIT_ML_InvalidateText(wnd, es, start, end);
1299 else
1300 EDIT_SL_InvalidateText(wnd, es, start, end);
1301 }
1302
1303
1304 /*********************************************************************
1305 *
1306 * EDIT_MakeFit
1307 *
1308 * Try to fit size + 1 bytes in the buffer. Constrain to limits.
1309 *
1310 */
1311 static BOOL32 EDIT_MakeFit(WND *wnd, EDITSTATE *es, INT32 size)
1312 {
1313 HLOCAL32 hNew32;
1314 HLOCAL16 hNew16;
1315
1316 if (size <= es->buffer_size)
1317 return TRUE;
1318 if (size > es->buffer_limit) {
1319 EDIT_NOTIFY_PARENT(wnd, EN_MAXTEXT, "EN_MAXTEXT");
1320 return FALSE;
1321 }
1322 size = ((size / GROWLENGTH) + 1) * GROWLENGTH;
1323 if (size > es->buffer_limit)
1324 size = es->buffer_limit;
1325
1326 TRACE(edit, "trying to ReAlloc to %d+1\n", size);
1327
1328 EDIT_UnlockBuffer(wnd, es, TRUE);
1329 if (es->text) {
1330 if ((es->text = HeapReAlloc(es->heap, 0, es->text, size + 1)))
1331 es->buffer_size = MIN(HeapSize(es->heap, 0, es->text) - 1, es->buffer_limit);
1332 else
1333 es->buffer_size = 0;
1334 } else if (es->hloc32) {
1335 if ((hNew32 = LocalReAlloc32(es->hloc32, size + 1, 0))) {
1336 TRACE(edit, "Old 32 bit handle %08x, new handle %08x\n", es->hloc32, hNew32);
1337 es->hloc32 = hNew32;
1338 es->buffer_size = MIN(LocalSize32(es->hloc32) - 1, es->buffer_limit);
1339 }
1340 } else if (es->hloc16) {
1341 if ((hNew16 = LOCAL_ReAlloc(wnd->hInstance, es->hloc16, size + 1, LMEM_MOVEABLE))) {
1342 TRACE(edit, "Old 16 bit handle %08x, new handle %08x\n", es->hloc16, hNew16);
1343 es->hloc16 = hNew16;
1344 es->buffer_size = MIN(LOCAL_Size(wnd->hInstance, es->hloc16) - 1, es->buffer_limit);
1345 }
1346 }
1347 if (es->buffer_size < size) {
1348 EDIT_LockBuffer(wnd, es);
1349 WARN(edit, "FAILED ! We now have %d+1\n", es->buffer_size);
1350 EDIT_NOTIFY_PARENT(wnd, EN_ERRSPACE, "EN_ERRSPACE");
1351 return FALSE;
1352 } else {
1353 EDIT_LockBuffer(wnd, es);
1354 TRACE(edit, "We now have %d+1\n", es->buffer_size);
1355 return TRUE;
1356 }
1357 }
1358
1359
1360 /*********************************************************************
1361 *
1362 * EDIT_MakeUndoFit
1363 *
1364 * Try to fit size + 1 bytes in the undo buffer.
1365 *
1366 */
1367 static BOOL32 EDIT_MakeUndoFit(WND *wnd, EDITSTATE *es, INT32 size)
1368 {
1369 if (size <= es->undo_buffer_size)
1370 return TRUE;
1371 size = ((size / GROWLENGTH) + 1) * GROWLENGTH;
1372
1373 TRACE(edit, "trying to ReAlloc to %d+1\n", size);
1374
1375 if ((es->undo_text = HeapReAlloc(es->heap, 0, es->undo_text, size + 1))) {
1376 es->undo_buffer_size = HeapSize(es->heap, 0, es->undo_text) - 1;
1377 if (es->undo_buffer_size < size) {
1378 WARN(edit, "FAILED ! We now have %d+1\n", es->undo_buffer_size);
1379 return FALSE;
1380 }
1381 return TRUE;
1382 }
1383 return FALSE;
1384 }
1385
1386
1387 /*********************************************************************
1388 *
1389 * EDIT_MoveBackward
1390 *
1391 */
1392 static void EDIT_MoveBackward(WND *wnd, EDITSTATE *es, BOOL32 extend)
1393 {
1394 INT32 e = es->selection_end;
1395
1396 if (e) {
1397 e--;
1398 if ((es->style & ES_MULTILINE) && e &&
1399 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1400 e--;
1401 if (e && (es->text[e - 1] == '\r'))
1402 e--;
1403 }
1404 }
1405 EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
1406 EDIT_EM_ScrollCaret(wnd, es);
1407 }
1408
1409
1410 /*********************************************************************
1411 *
1412 * EDIT_MoveDown_ML
1413 *
1414 * Only for multi line controls
1415 * Move the caret one line down, on a column with the nearest
1416 * x coordinate on the screen (might be a different column).
1417 *
1418 */
1419 static void EDIT_MoveDown_ML(WND *wnd, EDITSTATE *es, BOOL32 extend)
1420 {
1421 INT32 s = es->selection_start;
1422 INT32 e = es->selection_end;
1423 BOOL32 after_wrap = (es->flags & EF_AFTER_WRAP);
1424 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
1425 INT32 x = SLOWORD(pos);
1426 INT32 y = SHIWORD(pos);
1427
1428 e = EDIT_CharFromPos(wnd, es, x, y + es->line_height, &after_wrap);
1429 if (!extend)
1430 s = e;
1431 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
1432 EDIT_EM_ScrollCaret(wnd, es);
1433 }
1434
1435
1436 /*********************************************************************
1437 *
1438 * EDIT_MoveEnd
1439 *
1440 */
1441 static void EDIT_MoveEnd(WND *wnd, EDITSTATE *es, BOOL32 extend)
1442 {
1443 BOOL32 after_wrap = FALSE;
1444 INT32 e;
1445
1446 if (es->style & ES_MULTILINE)
1447 e = EDIT_CharFromPos(wnd, es, 0x7fffffff,
1448 HIWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1449 else
1450 e = lstrlen32A(es->text);
1451 EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, after_wrap);
1452 EDIT_EM_ScrollCaret(wnd, es);
1453 }
1454
1455
1456 /*********************************************************************
1457 *
1458 * EDIT_MoveForward
1459 *
1460 */
1461 static void EDIT_MoveForward(WND *wnd, EDITSTATE *es, BOOL32 extend)
1462 {
1463 INT32 e = es->selection_end;
1464
1465 if (es->text[e]) {
1466 e++;
1467 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1468 if (es->text[e] == '\n')
1469 e++;
1470 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1471 e += 2;
1472 }
1473 }
1474 EDIT_EM_SetSel(wnd, es, extend ? es->selection_start : e, e, FALSE);
1475 EDIT_EM_ScrollCaret(wnd, es);
1476 }
1477
1478
1479 /*********************************************************************
1480 *
1481 * EDIT_MoveHome
1482 *
1483 * Home key: move to beginning of line.
1484 *
1485 */
1486 static void EDIT_MoveHome(WND *wnd, EDITSTATE *es, BOOL32 extend)
1487 {
1488 INT32 e;
1489
1490 if (es->style & ES_MULTILINE)
1491 e = EDIT_CharFromPos(wnd, es, 0x80000000,
1492 HIWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1493 else
1494 e = 0;
1495 EDIT_EM_SetSel(wnd, es, e, extend ? es->selection_start : e, FALSE);
1496 EDIT_EM_ScrollCaret(wnd, es);
1497 }
1498
1499
1500 /*********************************************************************
1501 *
1502 * EDIT_MovePageDown_ML
1503 *
1504 * Only for multi line controls
1505 * Move the caret one page down, on a column with the nearest
1506 * x coordinate on the screen (might be a different column).
1507 *
1508 */
1509 static void EDIT_MovePageDown_ML(WND *wnd, EDITSTATE *es, BOOL32 extend)
1510 {
1511 INT32 s = es->selection_start;
1512 INT32 e = es->selection_end;
1513 BOOL32 after_wrap = (es->flags & EF_AFTER_WRAP);
1514 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
1515 INT32 x = SLOWORD(pos);
1516 INT32 y = SHIWORD(pos);
1517
1518 e = EDIT_CharFromPos(wnd, es, x,
1519 y + (es->format_rect.bottom - es->format_rect.top),
1520 &after_wrap);
1521 if (!extend)
1522 s = e;
1523 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
1524 EDIT_EM_ScrollCaret(wnd, es);
1525 }
1526
1527
1528 /*********************************************************************
1529 *
1530 * EDIT_MovePageUp_ML
1531 *
1532 * Only for multi line controls
1533 * Move the caret one page up, on a column with the nearest
1534 * x coordinate on the screen (might be a different column).
1535 *
1536 */
1537 static void EDIT_MovePageUp_ML(WND *wnd, EDITSTATE *es, BOOL32 extend)
1538 {
1539 INT32 s = es->selection_start;
1540 INT32 e = es->selection_end;
1541 BOOL32 after_wrap = (es->flags & EF_AFTER_WRAP);
1542 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
1543 INT32 x = SLOWORD(pos);
1544 INT32 y = SHIWORD(pos);
1545
1546 e = EDIT_CharFromPos(wnd, es, x,
1547 y - (es->format_rect.bottom - es->format_rect.top),
1548 &after_wrap);
1549 if (!extend)
1550 s = e;
1551 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
1552 EDIT_EM_ScrollCaret(wnd, es);
1553 }
1554
1555
1556 /*********************************************************************
1557 *
1558 * EDIT_MoveUp_ML
1559 *
1560 * Only for multi line controls
1561 * Move the caret one line up, on a column with the nearest
1562 * x coordinate on the screen (might be a different column).
1563 *
1564 */
1565 static void EDIT_MoveUp_ML(WND *wnd, EDITSTATE *es, BOOL32 extend)
1566 {
1567 INT32 s = es->selection_start;
1568 INT32 e = es->selection_end;
1569 BOOL32 after_wrap = (es->flags & EF_AFTER_WRAP);
1570 LRESULT pos = EDIT_EM_PosFromChar(wnd, es, e, after_wrap);
1571 INT32 x = SLOWORD(pos);
1572 INT32 y = SHIWORD(pos);
1573
1574 e = EDIT_CharFromPos(wnd, es, x, y - es->line_height, &after_wrap);
1575 if (!extend)
1576 s = e;
1577 EDIT_EM_SetSel(wnd, es, s, e, after_wrap);
1578 EDIT_EM_ScrollCaret(wnd, es);
1579 }
1580
1581
1582 /*********************************************************************
1583 *
1584 * EDIT_MoveWordBackward
1585 *
1586 */
1587 static void EDIT_MoveWordBackward(WND *wnd, EDITSTATE *es, BOOL32 extend)
1588 {
1589 INT32 s = es->selection_start;
1590 INT32 e = es->selection_end;
1591 INT32 l;
1592 INT32 ll;
1593 INT32 li;
1594
1595 l = EDIT_EM_LineFromChar(wnd, es, e);
1596 ll = EDIT_EM_LineLength(wnd, es, e);
1597 li = EDIT_EM_LineIndex(wnd, es, l);
1598 if (e - li == 0) {
1599 if (l) {
1600 li = EDIT_EM_LineIndex(wnd, es, l - 1);
1601 e = li + EDIT_EM_LineLength(wnd, es, li);
1602 }
1603 } else {
1604 e = li + (INT32)EDIT_CallWordBreakProc(wnd, es,
1605 li, e - li, ll, WB_LEFT);
1606 }
1607 if (!extend)
1608 s = e;
1609 EDIT_EM_SetSel(wnd, es, s, e, FALSE);
1610 EDIT_EM_ScrollCaret(wnd, es);
1611 }
1612
1613
1614 /*********************************************************************
1615 *
1616 * EDIT_MoveWordForward
1617 *
1618 */
1619 static void EDIT_MoveWordForward(WND *wnd, EDITSTATE *es, BOOL32 extend)
1620 {
1621 INT32 s = es->selection_start;
1622 INT32 e = es->selection_end;
1623 INT32 l;
1624 INT32 ll;
1625 INT32 li;
1626
1627 l = EDIT_EM_LineFromChar(wnd, es, e);
1628 ll = EDIT_EM_LineLength(wnd, es, e);
1629 li = EDIT_EM_LineIndex(wnd, es, l);
1630 if (e - li == ll) {
1631 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
1632 e = EDIT_EM_LineIndex(wnd, es, l + 1);
1633 } else {
1634 e = li + EDIT_CallWordBreakProc(wnd, es,
1635 li, e - li + 1, ll, WB_RIGHT);
1636 }
1637 if (!extend)
1638 s = e;
1639 EDIT_EM_SetSel(wnd, es, s, e, FALSE);
1640 EDIT_EM_ScrollCaret(wnd, es);
1641 }
1642
1643
1644 /*********************************************************************
1645 *
1646 * EDIT_PaintLine
1647 *
1648 */
1649 static void EDIT_PaintLine(WND *wnd, EDITSTATE *es, HDC32 dc, INT32 line, BOOL32 rev)
1650 {
1651 INT32 s = es->selection_start;
1652 INT32 e = es->selection_end;
1653 INT32 li;
1654 INT32 ll;
1655 INT32 x;
1656 INT32 y;
1657 LRESULT pos;
1658
1659 if (es->style & ES_MULTILINE) {
1660 INT32 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1661 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
1662 return;
1663 } else if (line)
1664 return;
1665
1666 TRACE(edit, "line=%d\n", line);
1667
1668 pos = EDIT_EM_PosFromChar(wnd, es, EDIT_EM_LineIndex(wnd, es, line), FALSE);
1669 x = SLOWORD(pos);
1670 y = SHIWORD(pos);
1671 li = EDIT_EM_LineIndex(wnd, es, line);
1672 ll = EDIT_EM_LineLength(wnd, es, li);
1673 s = es->selection_start;
1674 e = es->selection_end;
1675 ORDER_INT32(s, e);
1676 s = MIN(li + ll, MAX(li, s));
1677 e = MIN(li + ll, MAX(li, e));
1678 if (rev && (s != e) &&
1679 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
1680 x += EDIT_PaintText(wnd, es, dc, x, y, line, 0, s - li, FALSE);
1681 x += EDIT_PaintText(wnd, es, dc, x, y, line, s - li, e - s, TRUE);
1682 x += EDIT_PaintText(wnd, es, dc, x, y, line, e - li, li + ll - e, FALSE);
1683 } else
1684 x += EDIT_PaintText(wnd, es, dc, x, y, line, 0, ll, FALSE);
1685 }
1686
1687
1688 /*********************************************************************
1689 *
1690 * EDIT_PaintText
1691 *
1692 */
1693 static INT32 EDIT_PaintText(WND *wnd, EDITSTATE *es, HDC32 dc, INT32 x, INT32 y, INT32 line, INT32 col, INT32 count, BOOL32 rev)
1694 {
1695 COLORREF BkColor;
1696 COLORREF TextColor;
1697 INT32 ret;
1698 INT32 li;
1699 SIZE32 size;
1700
1701 if (!count)
1702 return 0;
1703 BkColor = GetBkColor32(dc);
1704 TextColor = GetTextColor32(dc);
1705 if (rev) {
1706 SetBkColor32(dc, GetSysColor32(COLOR_HIGHLIGHT));
1707 SetTextColor32(dc, GetSysColor32(COLOR_HIGHLIGHTTEXT));
1708 }
1709 li = EDIT_EM_LineIndex(wnd, es, line);
1710 if (es->style & ES_MULTILINE) {
1711 ret = (INT32)LOWORD(TabbedTextOut32A(dc, x, y, es->text + li + col, count,
1712 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
1713 } else {
1714 LPSTR text = EDIT_GetPasswordPointer_SL(wnd, es);
1715 TextOut32A(dc, x, y, text + li + col, count);
1716 GetTextExtentPoint32A(dc, text + li + col, count, &size);
1717 ret = size.cx;
1718 if (es->style & ES_PASSWORD)
1719 HeapFree(es->heap, 0, text);
1720 }
1721 if (rev) {
1722 SetBkColor32(dc, BkColor);
1723 SetTextColor32(dc, TextColor);
1724 }
1725 return ret;
1726 }
1727
1728
1729 /*********************************************************************
1730 *
1731 * EDIT_SetCaretPos
1732 *
1733 */
1734 static void EDIT_SetCaretPos(WND *wnd, EDITSTATE *es, INT32 pos,
1735 BOOL32 after_wrap)
1736 {
1737 LRESULT res = EDIT_EM_PosFromChar(wnd, es, pos, after_wrap);
1738 INT32 x = SLOWORD(res);
1739 INT32 y = SHIWORD(res);
1740
1741 if(x < es->format_rect.left)
1742 x = es->format_rect.left;
1743 if(x > es->format_rect.right - 2)
1744 x = es->format_rect.right - 2;
1745 if(y > es->format_rect.bottom)
1746 y = es->format_rect.bottom;
1747 if(y < es->format_rect.top)
1748 y = es->format_rect.top;
1749 SetCaretPos32(x, y);
1750 return;
1751 }
1752
1753
1754 /*********************************************************************
1755 *
1756 * EDIT_SetRectNP
1757 *
1758 * note: this is not (exactly) the handler called on EM_SETRECTNP
1759 * it is also used to set the rect of a single line control
1760 *
1761 */
1762 static void EDIT_SetRectNP(WND *wnd, EDITSTATE *es, LPRECT32 rc)
1763 {
1764 CopyRect32(&es->format_rect, rc);
1765 if (es->style & WS_BORDER) {
1766 INT32 bw = GetSystemMetrics32(SM_CXBORDER) + 1;
1767 if(TWEAK_WineLook == WIN31_LOOK)
1768 bw += 2;
1769 es->format_rect.left += bw;
1770 es->format_rect.top += bw;
1771 es->format_rect.right -= bw;
1772 es->format_rect.bottom -= bw;
1773 }
1774 es->format_rect.left += es->left_margin;
1775 es->format_rect.right -= es->right_margin;
1776 es->format_rect.right = MAX(es->format_rect.right, es->format_rect.left + es->char_width);
1777 if (es->style & ES_MULTILINE)
1778 es->format_rect.bottom = es->format_rect.top +
1779 MAX(1, (es->format_rect.bottom - es->format_rect.top) / es->line_height) * es->line_height;
1780 else
1781 es->format_rect.bottom = es->format_rect.top + es->line_height;
1782 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
1783 EDIT_BuildLineDefs_ML(wnd, es);
1784 }
1785
1786
1787 /*********************************************************************
1788 *
1789 * EDIT_UnlockBuffer
1790 *
1791 */
1792 static void EDIT_UnlockBuffer(WND *wnd, EDITSTATE *es, BOOL32 force)
1793 {
1794 if (!es) {
1795 ERR(edit, "no EDITSTATE ... please report\n");
1796 return;
1797 }
1798 if (!(es->style & ES_MULTILINE))
1799 return;
1800 if (!es->lock_count) {
1801 ERR(edit, "lock_count == 0 ... please report\n");
1802 return;
1803 }
1804 if (!es->text) {
1805 ERR(edit, "es->text == 0 ... please report\n");
1806 return;
1807 }
1808 if (force || (es->lock_count == 1)) {
1809 if (es->hloc32) {
1810 LocalUnlock32(es->hloc32);
1811 es->text = NULL;
1812 } else if (es->hloc16) {
1813 LOCAL_Unlock(wnd->hInstance, es->hloc16);
1814 es->text = NULL;
1815 }
1816 }
1817 es->lock_count--;
1818 }
1819
1820
1821 /*********************************************************************
1822 *
1823 * EDIT_WordBreakProc
1824 *
1825 * Find the beginning of words.
1826 * Note: unlike the specs for a WordBreakProc, this function only
1827 * allows to be called without linebreaks between s[0] upto
1828 * s[count - 1]. Remember it is only called
1829 * internally, so we can decide this for ourselves.
1830 *
1831 */
1832 static INT32 EDIT_WordBreakProc(LPSTR s, INT32 index, INT32 count, INT32 action)
1833 {
1834 INT32 ret = 0;
1835
1836 TRACE(edit, "s=%p, index=%u, count=%u, action=%d\n",
1837 s, index, count, action);
1838
1839 switch (action) {
1840 case WB_LEFT:
1841 if (!count)
1842 break;
1843 if (index)
1844 index--;
1845 if (s[index] == ' ') {
1846 while (index && (s[index] == ' '))
1847 index--;
1848 if (index) {
1849 while (index && (s[index] != ' '))
1850 index--;
1851 if (s[index] == ' ')
1852 index++;
1853 }
1854 } else {
1855 while (index && (s[index] != ' '))
1856 index--;
1857 if (s[index] == ' ')
1858 index++;
1859 }
1860 ret = index;
1861 break;
1862 case WB_RIGHT:
1863 if (!count)
1864 break;
1865 if (index)
1866 index--;
1867 if (s[index] == ' ')
1868 while ((index < count) && (s[index] == ' ')) index++;
1869 else {
1870 while (s[index] && (s[index] != ' ') && (index < count))
1871 index++;
1872 while ((s[index] == ' ') && (index < count)) index++;
1873 }
1874 ret = index;
1875 break;
1876 case WB_ISDELIMITER:
1877 ret = (s[index] == ' ');
1878 break;
1879 default:
1880 ERR(edit, "unknown action code, please report !\n");
1881 break;
1882 }
1883 return ret;
1884 }
1885
1886
1887 /*********************************************************************
1888 *
1889 * EM_CHARFROMPOS
1890 *
1891 * FIXME: do the specs mean to return LineIndex or LineNumber ???
1892 * Let's assume LineIndex is meant
1893 * FIXME: do the specs mean to return -1 if outside client area or
1894 * if outside formatting rectangle ???
1895 *
1896 */
1897 static LRESULT EDIT_EM_CharFromPos(WND *wnd, EDITSTATE *es, INT32 x, INT32 y)
1898 {
1899 POINT32 pt;
1900 RECT32 rc;
1901 INT32 index;
1902
1903 pt.x = x;
1904 pt.y = y;
1905 GetClientRect32(wnd->hwndSelf, &rc);
1906 if (!PtInRect32(&rc, pt))
1907 return -1;
1908
1909 index = EDIT_CharFromPos(wnd, es, x, y, NULL);
1910 return MAKELONG(index, EDIT_EM_LineIndex(wnd, es,
1911 EDIT_EM_LineFromChar(wnd, es, index)));
1912 }
1913
1914
1915 /*********************************************************************
1916 *
1917 * EM_FMTLINES
1918 *
1919 * Enable or disable soft breaks.
1920 */
1921 static BOOL32 EDIT_EM_FmtLines(WND *wnd, EDITSTATE *es, BOOL32 add_eol)
1922 {
1923 es->flags &= ~EF_USE_SOFTBRK;
1924 if (add_eol) {
1925 es->flags |= EF_USE_SOFTBRK;
1926 FIXME(edit, "soft break enabled, not implemented\n");
1927 }
1928 return add_eol;
1929 }
1930
1931
1932 /*********************************************************************
1933 *
1934 * EM_GETHANDLE
1935 *
1936 * Hopefully this won't fire back at us.
1937 * We always start with a fixed buffer in our own heap.
1938 * However, with this message a 32 bit application requests
1939 * a handle to 32 bit moveable local heap memory, where it expects
1940 * to find the text.
1941 * It's a pity that from this moment on we have to use this
1942 * local heap, because applications may rely on the handle
1943 * in the future.
1944 *
1945 * In this function we'll try to switch to local heap.
1946 *
1947 */
1948 static HLOCAL32 EDIT_EM_GetHandle(WND *wnd, EDITSTATE *es)
1949 {
1950 HLOCAL32 newBuf;
1951 LPSTR newText;
1952 INT32 newSize;
1953
1954 if (!(es->style & ES_MULTILINE))
1955 return 0;
1956
1957 if (es->hloc32)
1958 return es->hloc32;
1959 else if (es->hloc16)
1960 return (HLOCAL32)es->hloc16;
1961
1962 if (!(newBuf = LocalAlloc32(LMEM_MOVEABLE, lstrlen32A(es->text) + 1))) {
1963 ERR(edit, "could not allocate new 32 bit buffer\n");
1964 return 0;
1965 }
1966 newSize = MIN(LocalSize32(newBuf) - 1, es->buffer_limit);
1967 if (!(newText = LocalLock32(newBuf))) {
1968 ERR(edit, "could not lock new 32 bit buffer\n");
1969 LocalFree32(newBuf);
1970 return 0;
1971 }
1972 lstrcpy32A(newText, es->text);
1973 EDIT_UnlockBuffer(wnd, es, TRUE);
1974 if (es->text)
1975 HeapFree(es->heap, 0, es->text);
1976 es->hloc32 = newBuf;
1977 es->hloc16 = (HLOCAL16)NULL;
1978 es->buffer_size = newSize;
1979 es->text = newText;
1980 EDIT_LockBuffer(wnd, es);
1981 TRACE(edit, "switched to 32 bit local heap\n");
1982
1983 return es->hloc32;
1984 }
1985
1986
1987 /*********************************************************************
1988 *
1989 * EM_GETHANDLE16
1990 *
1991 * Hopefully this won't fire back at us.
1992 * We always start with a buffer in 32 bit linear memory.
1993 * However, with this message a 16 bit application requests
1994 * a handle of 16 bit local heap memory, where it expects to find
1995 * the text.
1996 * It's a pitty that from this moment on we have to use this
1997 * local heap, because applications may rely on the handle
1998 * in the future.
1999 *
2000 * In this function we'll try to switch to local heap.
2001 */
2002 static HLOCAL16 EDIT_EM_GetHandle16(WND *wnd, EDITSTATE *es)
2003 {
2004 HLOCAL16 newBuf;
2005 LPSTR newText;
2006 INT32 newSize;
2007
2008 if (!(es->style & ES_MULTILINE))
2009 return 0;
2010
2011 if (es->hloc16)
2012 return es->hloc16;
2013
2014 if (!LOCAL_HeapSize(wnd->hInstance)) {
2015 if (!LocalInit(wnd->hInstance, 0,
2016 GlobalSize16(wnd->hInstance))) {
2017 ERR(edit, "could not initialize local heap\n");
2018 return 0;
2019 }
2020 TRACE(edit, "local heap initialized\n");
2021 }
2022 if (!(newBuf = LOCAL_Alloc(wnd->hInstance, LMEM_MOVEABLE, lstrlen32A(es->text) + 1))) {
2023 ERR(edit, "could not allocate new 16 bit buffer\n");
2024 return 0;
2025 }
2026 newSize = MIN(LOCAL_Size(wnd->hInstance, newBuf) - 1, es->buffer_limit);
2027 if (!(newText = LOCAL_Lock(wnd->hInstance, newBuf))) {
2028 ERR(edit, "could not lock new 16 bit buffer\n");
2029 LOCAL_Free(wnd->hInstance, newBuf);
2030 return 0;
2031 }
2032 lstrcpy32A(newText, es->text);
2033 EDIT_UnlockBuffer(wnd, es, TRUE);
2034 if (es->text)
2035 HeapFree(es->heap, 0, es->text);
2036 else if (es->hloc32) {
2037 while (LocalFree32(es->hloc32)) ;
2038 LocalFree32(es->hloc32);
2039 }
2040 es->hloc32 = (HLOCAL32)NULL;
2041 es->hloc16 = newBuf;
2042 es->buffer_size = newSize;
2043 es->text = newText;
2044 EDIT_LockBuffer(wnd, es);
2045 TRACE(edit, "switched to 16 bit buffer\n");
2046
2047 return es->hloc16;
2048 }
2049
2050
2051 /*********************************************************************
2052 *
2053 * EM_GETLINE
2054 *
2055 */
2056 static INT32 EDIT_EM_GetLine(WND *wnd, EDITSTATE *es, INT32 line, LPSTR lpch)
2057 {
2058 LPSTR src;
2059 INT32 len;
2060 INT32 i;
2061
2062 if (es->style & ES_MULTILINE) {
2063 if (line >= es->line_count)
2064 return 0;
2065 } else
2066 line = 0;
2067 i = EDIT_EM_LineIndex(wnd, es, line);
2068 src = es->text + i;
2069 len = MIN(*(WORD *)lpch, EDIT_EM_LineLength(wnd, es, i));
2070 for (i = 0 ; i < len ; i++) {
2071 *lpch = *src;
2072 src++;
2073 lpch++;
2074 }
2075 return (LRESULT)len;
2076 }
2077
2078
2079 /*********************************************************************
2080 *
2081 * EM_GETSEL
2082 *
2083 */
2084 static LRESULT EDIT_EM_GetSel(WND *wnd, EDITSTATE *es, LPUINT32 start, LPUINT32 end)
2085 {
2086 UINT32 s = es->selection_start;
2087 UINT32 e = es->selection_end;
2088
2089 ORDER_UINT32(s, e);
2090 if (start)
2091 *start = s;
2092 if (end)
2093 *end = e;
2094 return MAKELONG(s, e);
2095 }
2096
2097
2098 /*********************************************************************
2099 *
2100 * EM_GETTHUMB
2101 *
2102 * FIXME: is this right ? (or should it be only VSCROLL)
2103 * (and maybe only for edit controls that really have their
2104 * own scrollbars) (and maybe only for multiline controls ?)
2105 * All in all: very poorly documented
2106 *
2107 * FIXME: now it's also broken, because of the new WM_HSCROLL /
2108 * WM_VSCROLL handlers
2109 *
2110 */
2111 static LRESULT EDIT_EM_GetThumb(WND *wnd, EDITSTATE *es)
2112 {
2113 return MAKELONG(EDIT_WM_VScroll(wnd, es, EM_GETTHUMB16, 0, 0),
2114 EDIT_WM_HScroll(wnd, es, EM_GETTHUMB16, 0, 0));
2115 }
2116
2117
2118 /*********************************************************************
2119 *
2120 * EM_LINEFROMCHAR
2121 *
2122 */
2123 static INT32 EDIT_EM_LineFromChar(WND *wnd, EDITSTATE *es, INT32 index)
2124 {
2125 INT32 line;
2126 LINEDEF *line_def;
2127
2128 if (!(es->style & ES_MULTILINE))
2129 return 0;
2130 if (index > lstrlen32A(es->text))
2131 return es->line_count - 1;
2132 if (index == -1)
2133 index = MIN(es->selection_start, es->selection_end);
2134
2135 line = 0;
2136 line_def = es->first_line_def;
2137 index -= line_def->length;
2138 while ((index >= 0) && line_def->next) {
2139 line++;
2140 line_def = line_def->next;
2141 index -= line_def->length;
2142 }
2143 return line;
2144 }
2145
2146
2147 /*********************************************************************
2148 *
2149 * EM_LINEINDEX
2150 *
2151 */
2152 static INT32 EDIT_EM_LineIndex(WND *wnd, EDITSTATE *es, INT32 line)
2153 {
2154 INT32 line_index;
2155 LINEDEF *line_def;
2156
2157 if (!(es->style & ES_MULTILINE))
2158 return 0;
2159 if (line >= es->line_count)
2160 return -1;
2161
2162 line_index = 0;
2163 line_def = es->first_line_def;
2164 if (line == -1) {
2165 INT32 index = es->selection_end - line_def->length;
2166 while ((index >= 0) && line_def->next) {
2167 line_index += line_def->length;
2168 line_def = line_def->next;
2169 index -= line_def->length;
2170 }
2171 } else {
2172 while (line > 0) {
2173 line_index += line_def->length;
2174 line_def = line_def->next;
2175 line--;
2176 }
2177 }
2178 return line_index;
2179 }
2180
2181
2182 /*********************************************************************
2183 *
2184 * EM_LINELENGTH
2185 *
2186 */
2187 static INT32 EDIT_EM_LineLength(WND *wnd, EDITSTATE *es, INT32 index)
2188 {
2189 LINEDEF *line_def;
2190
2191 if (!(es->style & ES_MULTILINE))
2192 return lstrlen32A(es->text);
2193
2194 if (index == -1) {
2195 /* FIXME: broken
2196 INT32 sl = EDIT_EM_LineFromChar(wnd, es, es->selection_start);
2197 INT32 el = EDIT_EM_LineFromChar(wnd, es, es->selection_end);
2198 return es->selection_start - es->line_defs[sl].offset +
2199 es->line_defs[el].offset +
2200 es->line_defs[el].length - es->selection_end;
2201 */
2202 return 0;
2203 }
2204 line_def = es->first_line_def;
2205 index -= line_def->length;
2206 while ((index >= 0) && line_def->next) {
2207 line_def = line_def->next;
2208 index -= line_def->length;
2209 }
2210 return line_def->net_length;
2211 }
2212
2213
2214 /*********************************************************************
2215 *
2216 * EM_LINESCROLL
2217 *
2218 * FIXME: dx is in average character widths
2219 * However, we assume it is in pixels when we use this
2220 * function internally
2221 *
2222 */
2223 static BOOL32 EDIT_EM_LineScroll(WND *wnd, EDITSTATE *es, INT32 dx, INT32 dy)
2224 {
2225 INT32 nyoff;
2226
2227 if (!(es->style & ES_MULTILINE))
2228 return FALSE;
2229
2230 if (-dx > es->x_offset)
2231 dx = -es->x_offset;
2232 if (dx > es->text_width - es->x_offset)
2233 dx = es->text_width - es->x_offset;
2234 nyoff = MAX(0, es->y_offset + dy);
2235 if (nyoff >= es->line_count)
2236 nyoff = es->line_count - 1;
2237 dy = (es->y_offset - nyoff) * es->line_height;
2238 if (dx || dy) {
2239 RECT32 rc1;
2240 RECT32 rc;
2241 GetClientRect32(wnd->hwndSelf, &rc1);
2242 IntersectRect32(&rc, &rc1, &es->format_rect);
2243 ScrollWindowEx32(wnd->hwndSelf, -dx, dy,
2244 NULL, &rc, (HRGN32)NULL, NULL, SW_INVALIDATE);
2245 es->y_offset = nyoff;
2246 es->x_offset += dx;
2247 }
2248 if (dx && !(es->flags & EF_HSCROLL_TRACK))
2249 EDIT_NOTIFY_PARENT(wnd, EN_HSCROLL, "EN_HSCROLL");
2250 if (dy && !(es->flags & EF_VSCROLL_TRACK))
2251 EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
2252 return TRUE;
2253 }
2254
2255
2256 /*********************************************************************
2257 *
2258 * EM_POSFROMCHAR
2259 *
2260 */
2261 static LRESULT EDIT_EM_PosFromChar(WND *wnd, EDITSTATE *es, INT32 index, BOOL32 after_wrap)
2262 {
2263 INT32 len = lstrlen32A(es->text);
2264 INT32 l;
2265 INT32 li;
2266 INT32 x;
2267 INT32 y = 0;
2268 HDC32 dc;
2269 HFONT32 old_font = 0;
2270 SIZE32 size;
2271
2272 index = MIN(index, len);
2273 dc = GetDC32(wnd->hwndSelf);
2274 if (es->font)
2275 old_font = SelectObject32(dc, es->font);
2276 if (es->style & ES_MULTILINE) {
2277 l = EDIT_EM_LineFromChar(wnd, es, index);
2278 y = (l - es->y_offset) * es->line_height;
2279 li = EDIT_EM_LineIndex(wnd, es, l);
2280 if (after_wrap && (li == index) && l) {
2281 INT32 l2 = l - 1;
2282 LINEDEF *line_def = es->first_line_def;
2283 while (l2) {
2284 line_def = line_def->next;
2285 l2--;
2286 }
2287 if (line_def->ending == END_WRAP) {
2288 l--;
2289 y -= es->line_height;
2290 li = EDIT_EM_LineIndex(wnd, es, l);
2291 }
2292 }
2293 x = LOWORD(GetTabbedTextExtent32A(dc, es->text + li, index - li,
2294 es->tabs_count, es->tabs)) - es->x_offset;
2295 } else {
2296 LPSTR text = EDIT_GetPasswordPointer_SL(wnd, es);
2297 if (index < es->x_offset) {
2298 GetTextExtentPoint32A(dc, text + index,
2299 es->x_offset - index, &size);
2300 x = -size.cx;
2301 } else {
2302 GetTextExtentPoint32A(dc, text + es->x_offset,
2303 index - es->x_offset, &size);
2304 x = size.cx;
2305 }
2306 y = 0;
2307 if (es->style & ES_PASSWORD)
2308 HeapFree(es->heap, 0 ,text);
2309 }
2310 x += es->format_rect.left;
2311 y += es->format_rect.top;
2312 if (es->font)
2313 SelectObject32(dc, old_font);
2314 ReleaseDC32(wnd->hwndSelf, dc);
2315 return MAKELONG((INT16)x, (INT16)y);
2316 }
2317
2318
2319 /*********************************************************************
2320 *
2321 * EM_REPLACESEL
2322 *
2323 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2324 *
2325 */
2326 static void EDIT_EM_ReplaceSel(WND *wnd, EDITSTATE *es, BOOL32 can_undo, LPCSTR lpsz_replace)
2327 {
2328 INT32 strl = lstrlen32A(lpsz_replace);
2329 INT32 tl = lstrlen32A(es->text);
2330 INT32 utl;
2331 UINT32 s;
2332 UINT32 e;
2333 INT32 i;
2334 LPSTR p;
2335
2336 s = es->selection_start;
2337 e = es->selection_end;
2338
2339 if ((s == e) && !strl)
2340 return;
2341
2342 ORDER_UINT32(s, e);
2343
2344 if (!EDIT_MakeFit(wnd, es, tl - (e - s) + strl))
2345 return;
2346
2347 if (e != s) {
2348 /* there is something to be deleted */
2349 if (can_undo) {
2350 utl = lstrlen32A(es->undo_text);
2351 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2352 /* undo-buffer is extended to the right */
2353 EDIT_MakeUndoFit(wnd, es, utl + e - s);
2354 lstrcpyn32A(es->undo_text + utl, es->text + s, e - s + 1);
2355 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2356 /* undo-buffer is extended to the left */
2357 EDIT_MakeUndoFit(wnd, es, utl + e - s);
2358 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2359 p[e - s] = p[0];
2360 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2361 p[i] = (es->text + s)[i];
2362 es->undo_position = s;
2363 } else {
2364 /* new undo-buffer */
2365 EDIT_MakeUndoFit(wnd, es, e - s);
2366 lstrcpyn32A(es->undo_text, es->text + s, e - s + 1);
2367 es->undo_position = s;
2368 }
2369 /* any deletion makes the old insertion-undo invalid */
2370 es->undo_insert_count = 0;
2371 } else
2372 EDIT_EM_EmptyUndoBuffer(wnd, es);
2373
2374 /* now delete */
2375 lstrcpy32A(es->text + s, es->text + e);
2376 }
2377 if (strl) {
2378 /* there is an insertion */
2379 if (can_undo) {
2380 if ((s == es->undo_position) ||
2381 ((es->undo_insert_count) &&
2382 (s == es->undo_position + es->undo_insert_count)))
2383 /*
2384 * insertion is new and at delete position or
2385 * an extension to either left or right
2386 */
2387 es->undo_insert_count += strl;
2388 else {
2389 /* new insertion undo */
2390 es->undo_position = s;
2391 es->undo_insert_count = strl;
2392 /* new insertion makes old delete-buffer invalid */
2393 *es->undo_text = '\0';
2394 }
2395 } else
2396 EDIT_EM_EmptyUndoBuffer(wnd, es);
2397
2398 /* now insert */
2399 tl = lstrlen32A(es->text);
2400 for (p = es->text + tl ; p >= es->text + s ; p--)
2401 p[strl] = p[0];
2402 for (i = 0 , p = es->text + s ; i < strl ; i++)
2403 p[i] = lpsz_replace[i];
2404 if(es->style & ES_UPPERCASE)
2405 CharUpperBuff32A(p, strl);
2406 else if(es->style & ES_LOWERCASE)
2407 CharLowerBuff32A(p, strl);
2408 s += strl;
2409 }
2410 /* FIXME: really inefficient */
2411 if (es->style & ES_MULTILINE)
2412 EDIT_BuildLineDefs_ML(wnd, es);
2413
2414 EDIT_EM_SetSel(wnd, es, s, s, FALSE);
2415 es->flags |= EF_MODIFIED;
2416 es->flags |= EF_UPDATE;
2417 EDIT_EM_ScrollCaret(wnd, es);
2418
2419 /* FIXME: really inefficient */
2420 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2421 }
2422
2423
2424 /*********************************************************************
2425 *
2426 * EM_SCROLL
2427 *
2428 */
2429 static LRESULT EDIT_EM_Scroll(WND *wnd, EDITSTATE *es, INT32 action)
2430 {
2431 INT32 dy;
2432
2433 if (!(es->style & ES_MULTILINE))
2434 return (LRESULT)FALSE;
2435
2436 dy = 0;
2437
2438 switch (action) {
2439 case SB_LINEUP:
2440 if (es->y_offset)
2441 dy = -1;
2442 break;
2443 case SB_LINEDOWN:
2444 if (es->y_offset < es->line_count - 1)
2445 dy = 1;
2446 break;
2447 case SB_PAGEUP:
2448 if (es->y_offset)
2449 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
2450 break;
2451 case SB_PAGEDOWN:
2452 if (es->y_offset < es->line_count - 1)
2453 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2454 break;
2455 default:
2456 return (LRESULT)FALSE;
2457 }
2458 if (dy) {
2459 EDIT_EM_LineScroll(wnd, es, 0, dy);
2460 EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
2461 }
2462 return MAKELONG((INT16)dy, (BOOL16)TRUE);
2463 }
2464
2465
2466 /*********************************************************************
2467 *
2468 * EM_SCROLLCARET
2469 *
2470 */
2471 static void EDIT_EM_ScrollCaret(WND *wnd, EDITSTATE *es)
2472 {
2473 if (es->style & ES_MULTILINE) {
2474 INT32 l;
2475 INT32 li;
2476 INT32 vlc;
2477 INT32 ww;
2478 INT32 cw = es->char_width;
2479 INT32 x;
2480 INT32 dy = 0;
2481 INT32 dx = 0;
2482
2483 l = EDIT_EM_LineFromChar(wnd, es, es->selection_end);
2484 li = EDIT_EM_LineIndex(wnd, es, l);
2485 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, es->flags & EF_AFTER_WRAP));
2486 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
2487 if (l >= es->y_offset + vlc)
2488 dy = l - vlc + 1 - es->y_offset;
2489 if (l < es->y_offset)
2490 dy = l - es->y_offset;
2491 ww = es->format_rect.right - es->format_rect.left;
2492 if (x < es->format_rect.left)
2493 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
2494 if (x > es->format_rect.right)
2495 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
2496 if (dy || dx)
2497 EDIT_EM_LineScroll(wnd, es, dx, dy);
2498 } else {
2499 INT32 x;
2500 INT32 goal;
2501 INT32 format_width;
2502
2503 if (!(es->style & ES_AUTOHSCROLL))
2504 return;
2505
2506 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
2507 format_width = es->format_rect.right - es->format_rect.left;
2508 if (x < es->format_rect.left) {
2509 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
2510 do {
2511 es->x_offset--;
2512 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
2513 } while ((x < goal) && es->x_offset);
2514 /* FIXME: use ScrollWindow() somehow to improve performance */
2515 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2516 } else if (x > es->format_rect.right) {
2517 INT32 x_last;
2518 INT32 len = lstrlen32A(es->text);
2519 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
2520 do {
2521 es->x_offset++;
2522 x = SLOWORD(EDIT_EM_PosFromChar(wnd, es, es->selection_end, FALSE));
2523 x_last = SLOWORD(EDIT_EM_PosFromChar(wnd, es, len, FALSE));
2524 } while ((x > goal) && (x_last > es->format_rect.right));
2525 /* FIXME: use ScrollWindow() somehow to improve performance */
2526 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2527 }
2528 }
2529 }
2530
2531
2532 /*********************************************************************
2533 *
2534 * EM_SETHANDLE
2535 *
2536 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
2537 *
2538 */
2539 static void EDIT_EM_SetHandle(WND *wnd, EDITSTATE *es, HLOCAL32 hloc)
2540 {
2541 if (!(es->style & ES_MULTILINE))
2542 return;
2543
2544 if (!hloc) {
2545 WARN(edit, "called with NULL handle\n");
2546 return;
2547 }
2548
2549 EDIT_UnlockBuffer(wnd, es, TRUE);
2550 /*
2551 * old buffer is freed by caller, unless
2552 * it is still in our own heap. (in that case
2553 * we free it, correcting the buggy caller.)
2554 */
2555 if (es->text)
2556 HeapFree(es->heap, 0, es->text);
2557
2558 es->hloc16 = (HLOCAL16)NULL;
2559 es->hloc32 = hloc;
2560 es->text = NULL;
2561 es->buffer_size = LocalSize32(es->hloc32) - 1;
2562 EDIT_LockBuffer(wnd, es);
2563
2564 es->x_offset = es->y_offset = 0;
2565 es->selection_start = es->selection_end = 0;
2566 EDIT_EM_EmptyUndoBuffer(wnd, es);
2567 es->flags &= ~EF_MODIFIED;
2568 es->flags &= ~EF_UPDATE;
2569 EDIT_BuildLineDefs_ML(wnd, es);
2570 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2571 EDIT_EM_ScrollCaret(wnd, es);
2572 }
2573
2574
2575 /*********************************************************************
2576 *
2577 * EM_SETHANDLE16
2578 *
2579 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
2580 *
2581 */
2582 static void EDIT_EM_SetHandle16(WND *wnd, EDITSTATE *es, HLOCAL16 hloc)
2583 {
2584 if (!(es->style & ES_MULTILINE))
2585 return;
2586
2587 if (!hloc) {
2588 WARN(edit, "called with NULL handle\n");
2589 return;
2590 }
2591
2592 EDIT_UnlockBuffer(wnd, es, TRUE);
2593 /*
2594 * old buffer is freed by caller, unless
2595 * it is still in our own heap. (in that case
2596 * we free it, correcting the buggy caller.)
2597 */
2598 if (es->text)
2599 HeapFree(es->heap, 0, es->text);
2600
2601 es->hloc16 = hloc;
2602 es->hloc32 = (HLOCAL32)NULL;
2603 es->text = NULL;
2604 es->buffer_size = LOCAL_Size(wnd->hInstance, es->hloc16) - 1;
2605 EDIT_LockBuffer(wnd, es);
2606
2607 es->x_offset = es->y_offset = 0;
2608 es->selection_start = es->selection_end = 0;
2609 EDIT_EM_EmptyUndoBuffer(wnd, es);
2610 es->flags &= ~EF_MODIFIED;
2611 es->flags &= ~EF_UPDATE;
2612 EDIT_BuildLineDefs_ML(wnd, es);
2613 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2614 EDIT_EM_ScrollCaret(wnd, es);
2615 }
2616
2617
2618 /*********************************************************************
2619 *
2620 * EM_SETLIMITTEXT
2621 *
2622 * FIXME: in WinNT maxsize is 0x7FFFFFFF / 0xFFFFFFFF
2623 * However, the windows version is not complied to yet in all of edit.c
2624 *
2625 */
2626 static void EDIT_EM_SetLimitText(WND *wnd, EDITSTATE *es, INT32 limit)
2627 {
2628 if (es->style & ES_MULTILINE) {
2629 if (limit)
2630 es->buffer_limit = MIN(limit, BUFLIMIT_MULTI);
2631 else
2632 es->buffer_limit = BUFLIMIT_MULTI;
2633 } else {
2634 if (limit)
2635 es->buffer_limit = MIN(limit, BUFLIMIT_SINGLE);
2636 else
2637 es->buffer_limit = BUFLIMIT_SINGLE;
2638 }
2639 }
2640
2641
2642 /*********************************************************************
2643 *
2644 * EM_SETMARGINS
2645 *
2646 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
2647 * action wParam despite what the docs say. It also appears not to affect
2648 * multiline controls??
2649 *
2650 */
2651 static void EDIT_EM_SetMargins(WND *wnd, EDITSTATE *es, INT32 action,
2652 INT32 left, INT32 right)
2653 {
2654 if (action & EC_LEFTMARGIN) {
2655 if (left != EC_USEFONTINFO)
2656 es->left_margin = left;
2657 else
2658 if (es->style & ES_MULTILINE)
2659 es->left_margin = 0; /* ?? */
2660 else
2661 es->left_margin = es->char_width;
2662 }
2663
2664 if (action & EC_RIGHTMARGIN) {
2665 if (right != EC_USEFONTINFO)
2666 es->right_margin = right;
2667 else
2668 if (es->style & ES_MULTILINE)
2669 es->right_margin = 0; /* ?? */
2670 else
2671 es->right_margin = es->char_width;
2672 }
2673 TRACE(edit, "left=%d, right=%d\n", es->left_margin, es->right_margin);
2674 }
2675
2676
2677 /*********************************************************************
2678 *
2679 * EM_SETPASSWORDCHAR
2680 *
2681 */
2682 static void EDIT_EM_SetPasswordChar(WND *wnd, EDITSTATE *es, CHAR c)
2683 {
2684 if (es->style & ES_MULTILINE)
2685 return;
2686
2687 if (es->password_char == c)
2688 return;
2689
2690 es->password_char = c;
2691 if (c) {
2692 wnd->dwStyle |= ES_PASSWORD;
2693 es->style |= ES_PASSWORD;
2694 } else {
2695 wnd->dwStyle &= ~ES_PASSWORD;
2696 es->style &= ~ES_PASSWORD;
2697 }
2698 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2699 }
2700
2701
2702 /*********************************************************************
2703 *
2704 * EDIT_EM_SetSel
2705 *
2706 * note: unlike the specs say: the order of start and end
2707 * _is_ preserved in Windows. (i.e. start can be > end)
2708 * In other words: this handler is OK
2709 *
2710 */
2711 static void EDIT_EM_SetSel(WND *wnd, EDITSTATE *es, UINT32 start, UINT32 end, BOOL32 after_wrap)
2712 {
2713 UINT32 old_start = es->selection_start;
2714 UINT32 old_end = es->selection_end;
2715 UINT32 len = lstrlen32A(es->text);
2716
2717 if (start == -1) {
2718 start = es->selection_end;
2719 end = es->selection_end;
2720 } else {
2721 start = MIN(start, len);
2722 end = MIN(end, len);
2723 }
2724 es->selection_start = start;
2725 es->selection_end = end;
2726 if (after_wrap)
2727 es->flags |= EF_AFTER_WRAP;
2728 else
2729 es->flags &= ~EF_AFTER_WRAP;
2730 if (es->flags & EF_FOCUSED)
2731 EDIT_SetCaretPos(wnd, es, end, after_wrap);
2732 /* This is little bit more efficient than before, not sure if it can be improved. FIXME? */
2733 ORDER_UINT32(start, end);
2734 ORDER_UINT32(end, old_end);
2735 ORDER_UINT32(start, old_start);
2736 ORDER_UINT32(old_start, old_end);
2737 if (end != old_start)
2738 {
2739 /*
2740 * One can also do
2741 * ORDER_UINT32(end, old_start);
2742 * EDIT_InvalidateText(wnd, es, start, end);
2743 * EDIT_InvalidateText(wnd, es, old_start, old_end);
2744 * in place of the following if statement.
2745 */
2746 if (old_start > end )
2747 {
2748 EDIT_InvalidateText(wnd, es, start, end);
2749 EDIT_InvalidateText(wnd, es, old_start, old_end);
2750 }
2751 else
2752 {
2753 EDIT_InvalidateText(wnd, es, start, old_start);
2754 EDIT_InvalidateText(wnd, es, end, old_end);
2755 }
2756 }
2757 else EDIT_InvalidateText(wnd, es, start, old_end);
2758 }
2759
2760
2761 /*********************************************************************
2762 *
2763 * EM_SETTABSTOPS
2764 *
2765 */
2766 static BOOL32 EDIT_EM_SetTabStops(WND *wnd, EDITSTATE *es, INT32 count, LPINT32 tabs)
2767 {
2768 if (!(es->style & ES_MULTILINE))
2769 return FALSE;
2770 if (es->tabs)
2771 HeapFree(es->heap, 0, es->tabs);
2772 es->tabs_count = count;
2773 if (!count)
2774 es->tabs = NULL;
2775 else {
2776 es->tabs = HeapAlloc(es->heap, 0, count * sizeof(INT32));
2777 memcpy(es->tabs, tabs, count * sizeof(INT32));
2778 }
2779 return TRUE;
2780 }
2781
2782
2783 /*********************************************************************
2784 *
2785 * EM_SETTABSTOPS16
2786 *
2787 */
2788 static BOOL32 EDIT_EM_SetTabStops16(WND *wnd, EDITSTATE *es, INT32 count, LPINT16 tabs)
2789 {
2790 if (!(es->style & ES_MULTILINE))
2791 return FALSE;
2792 if (es->tabs)
2793 HeapFree(es->heap, 0, es->tabs);
2794 es->tabs_count = count;
2795 if (!count)
2796 es->tabs = NULL;
2797 else {
2798 INT32 i;
2799 es->tabs = HeapAlloc(es->heap, 0, count * sizeof(INT32));
2800 for (i = 0 ; i < count ; i++)
2801 es->tabs[i] = *tabs++;
2802 }
2803 return TRUE;
2804 }
2805
2806
2807 /*********************************************************************
2808 *
2809 * EM_SETWORDBREAKPROC
2810 *
2811 */
2812 static void EDIT_EM_SetWordBreakProc(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC32A wbp)
2813 {
2814 if (es->word_break_proc32A == wbp)
2815 return;
2816
2817 es->word_break_proc32A = wbp;
2818 es->word_break_proc16 = NULL;
2819 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
2820 EDIT_BuildLineDefs_ML(wnd, es);
2821 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2822 }
2823 }
2824
2825
2826 /*********************************************************************
2827 *
2828 * EM_SETWORDBREAKPROC16
2829 *
2830 */
2831 static void EDIT_EM_SetWordBreakProc16(WND *wnd, EDITSTATE *es, EDITWORDBREAKPROC16 wbp)
2832 {
2833 if (es->word_break_proc16 == wbp)
2834 return;
2835
2836 es->word_break_proc32A = NULL;
2837 es->word_break_proc16 = wbp;
2838 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
2839 EDIT_BuildLineDefs_ML(wnd, es);
2840 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
2841 }
2842 }
2843
2844
2845 /*********************************************************************
2846 *
2847 * EM_UNDO / WM_UNDO
2848 *
2849 */
2850 static BOOL32 EDIT_EM_Undo(WND *wnd, EDITSTATE *es)
2851 {
2852 INT32 ulength = lstrlen32A(es->undo_text);
2853 LPSTR utext = HeapAlloc(es->heap, 0, ulength + 1);
2854
2855 lstrcpy32A(utext, es->undo_text);
2856
2857 TRACE(edit, "before UNDO:insertion length = %d, deletion buffer = %s\n",
2858 es->undo_insert_count, utext);
2859
2860 EDIT_EM_SetSel(wnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2861 EDIT_EM_EmptyUndoBuffer(wnd, es);
2862 EDIT_EM_ReplaceSel(wnd, es, TRUE, utext);
2863 EDIT_EM_SetSel(wnd, es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2864 HeapFree(es->heap, 0, utext);
2865
2866 TRACE(edit, "after UNDO:insertion length = %d, deletion buffer = %s\n",
2867 es->undo_insert_count, es->undo_text);
2868
2869 return TRUE;
2870 }
2871
2872
2873 /*********************************************************************
2874 *
2875 * WM_CHAR
2876 *
2877 */
2878 static void EDIT_WM_Char(WND *wnd, EDITSTATE *es, CHAR c, DWORD key_data)
2879 {
2880 switch (c) {
2881 case '\r':
2882 case '\n':
2883 if (es->style & ES_MULTILINE) {
2884 if (es->style & ES_READONLY) {
2885 EDIT_MoveHome(wnd, es, FALSE);
2886 EDIT_MoveDown_ML(wnd, es, FALSE);
2887 } else
2888 EDIT_EM_ReplaceSel(wnd, es, TRUE, "\r\n");
2889 }
2890 break;
2891 case '\t':
2892 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
2893 EDIT_EM_ReplaceSel(wnd, es, TRUE, "\t");
2894 break;
2895 default:
2896 if (!(es->style & ES_READONLY) && ((BYTE)c >= ' ') && (c != 127)) {
2897 char str[2];
2898 str[0] = c;
2899 str[1] = '\0';
2900 EDIT_EM_ReplaceSel(wnd, es, TRUE, str);
2901 }
2902 break;
2903 }
2904 }
2905
2906
2907 /*********************************************************************
2908 *
2909 * WM_COMMAND
2910 *
2911 */
2912 static void EDIT_WM_Command(WND *wnd, EDITSTATE *es, INT32 code, INT32 id, HWND32 control)
2913 {
2914 if (code || control)
2915 return;
2916
2917 switch (id) {
2918 case EM_UNDO32:
2919 EDIT_EM_Undo(wnd, es);
2920 break;
2921 case WM_CUT:
2922 EDIT_WM_Cut(wnd, es);
2923 break;
2924 case WM_COPY:
2925 EDIT_WM_Copy(wnd, es);
2926 break;
2927 case WM_PASTE:
2928 EDIT_WM_Paste(wnd, es);
2929 break;
2930 case WM_CLEAR:
2931 EDIT_WM_Clear(wnd, es);
2932 break;
2933 case EM_SETSEL32:
2934 EDIT_EM_SetSel(wnd, es, 0, -1, FALSE);
2935 EDIT_EM_ScrollCaret(wnd, es);
2936 break;
2937 default:
2938 ERR(edit, "unknown menu item, please report\n");
2939 break;
2940 }
2941 }
2942
2943
2944 /*********************************************************************
2945 *
2946 * WM_CONTEXTMENU
2947 *
2948 * Note: the resource files resource/sysres_??.rc cannot define a
2949 * single popup menu. Hence we use a (dummy) menubar
2950 * containing the single popup menu as its first item.
2951 *
2952 * FIXME: the message identifiers have been chosen arbitrarily,
2953 * hence we use MF_BYPOSITION.
2954 * We might as well use the "real" values (anybody knows ?)
2955 * The menu definition is in resources/sysres_??.rc.
2956 * Once these are OK, we better use MF_BYCOMMAND here
2957 * (as we do in EDIT_WM_Command()).
2958 *
2959 */
2960 static void EDIT_WM_ContextMenu(WND *wnd, EDITSTATE *es, HWND32 hwnd, INT32 x, INT32 y)
2961 {
2962 HMENU32 menu = LoadMenuIndirect32A(SYSRES_GetResPtr(SYSRES_MENU_EDITMENU));
2963 HMENU32 popup = GetSubMenu32(menu, 0);
2964 UINT32 start = es->selection_start;
2965 UINT32 end = es->selection_end;
2966
2967 ORDER_UINT32(start, end);
2968
2969 /* undo */
2970 EnableMenuItem32(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(wnd, es) ? MF_ENABLED : MF_GRAYED));
2971 /* cut */
2972 EnableMenuItem32(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
2973 /* copy */
2974 EnableMenuItem32(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
2975 /* paste */
2976 EnableMenuItem32(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable32(CF_TEXT) ? MF_ENABLED : MF_GRAYED));
2977 /* delete */
2978 EnableMenuItem32(popup, 5, MF_BYPOSITION | ((end - start) ? MF_ENABLED : MF_GRAYED));
2979 /* select all */
2980 EnableMenuItem32(popup, 7, MF_BYPOSITION | (start || (end != lstrlen32A(es->text)) ? MF_ENABLED : MF_GRAYED));
2981
2982 TrackPopupMenu32(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, wnd->hwndSelf, NULL);
2983 DestroyMenu32(menu);
2984 }
2985
2986
2987 /*********************************************************************
2988 *
2989 * WM_COPY
2990 *
2991 */
2992 static void EDIT_WM_Copy(WND *wnd, EDITSTATE *es)
2993 {
2994 INT32 s = es->selection_start;
2995 INT32 e = es->selection_end;
2996 HGLOBAL32 hdst;
2997 LPSTR dst;
2998
2999 if (e == s)
3000 return;
3001 ORDER_INT32(s, e);
3002 hdst = GlobalAlloc32(GMEM_MOVEABLE, (DWORD)(e - s + 1));
3003 dst = GlobalLock32(hdst);
3004 lstrcpyn32A(dst, es->text + s, e - s + 1);
3005 GlobalUnlock32(hdst);
3006 OpenClipboard32(wnd->hwndSelf);
3007 EmptyClipboard32();
3008 SetClipboardData32(CF_TEXT, hdst);
3009 CloseClipboard32();
3010 }
3011
3012
3013 /*********************************************************************
3014 *
3015 * WM_CREATE
3016 *
3017 */
3018 static LRESULT EDIT_WM_Create(WND *wnd, EDITSTATE *es, LPCREATESTRUCT32A cs)
3019 {
3020 /*
3021 * To initialize some final structure members, we call some helper
3022 * functions. However, since the EDITSTATE is not consistent (i.e.
3023 * not fully initialized), we should be very careful which
3024 * functions can be called, and in what order.
3025 */
3026 EDIT_WM_SetFont(wnd, es, 0, FALSE);
3027 if (cs->lpszName && *(cs->lpszName) != '\0') {
3028 EDIT_EM_ReplaceSel(wnd, es, FALSE, cs->lpszName);
3029 /* if we insert text to the editline, the text scrolls out of the window, as the caret is placed after the insert pos normally; thus we reset es->selection... to 0 and update caret */
3030 es->selection_start = es->selection_end = 0;
3031 EDIT_EM_ScrollCaret(wnd, es);
3032 }
3033 return 0;
3034 }
3035
3036
3037 /*********************************************************************
3038 *
3039 * WM_DESTROY
3040 *
3041 */
3042 static void EDIT_WM_Destroy(WND *wnd, EDITSTATE *es)
3043 {
3044 if (es->hloc32) {
3045 while (LocalUnlock32(es->hloc32)) ;
3046 LocalFree32(es->hloc32);
3047 }
3048 if (es->hloc16) {
3049 while (LOCAL_Unlock(wnd->hInstance, es->hloc16)) ;
3050 LOCAL_Free(wnd->hInstance, es->hloc16);
3051 }
3052 HeapDestroy(es->heap);
3053 HeapFree(GetProcessHeap(), 0, es);
3054 *(EDITSTATE **)wnd->wExtra = NULL;
3055 }
3056
3057
3058 /*********************************************************************
3059 *
3060 * WM_ERASEBKGND
3061 *
3062 */
3063 static LRESULT EDIT_WM_EraseBkGnd(WND *wnd, EDITSTATE *es, HDC32 dc)
3064 {
3065 HBRUSH32 brush;
3066 RECT32 rc;
3067
3068 if (!(brush = (HBRUSH32)EDIT_SEND_CTLCOLOR(wnd, dc)))
3069 brush = (HBRUSH32)GetStockObject32(WHITE_BRUSH);
3070
3071 GetClientRect32(wnd->hwndSelf, &rc);
3072 IntersectClipRect32(dc, rc.left, rc.top, rc.right, rc.bottom);
3073 GetClipBox32(dc, &rc);
3074 /*
3075 * FIXME: specs say that we should UnrealizeObject() the brush,
3076 * but the specs of UnrealizeObject() say that we shouldn't
3077 * unrealize a stock object. The default brush that
3078 * DefWndProc() returns is ... a stock object.
3079 */
3080 FillRect32(dc, &rc, brush);
3081 return -1;
3082 }
3083
3084
3085 /*********************************************************************
3086 *
3087 * WM_GETTEXT
3088 *
3089 */
3090 static INT32 EDIT_WM_GetText(WND *wnd, EDITSTATE *es, INT32 count, LPSTR text)
3091 {
3092 INT32 len = lstrlen32A(es->text);
3093
3094 if (count > len) {
3095 lstrcpy32A(text, es->text);
3096 return len;
3097 } else
3098 return -1;
3099 }
3100
3101
3102 /*********************************************************************
3103 *
3104 * EDIT_HScroll_Hack
3105 *
3106 * 16 bit notepad needs this. Actually it is not _our_ hack,
3107 * it is notepad's. Notepad is sending us scrollbar messages with
3108 * undocumented parameters without us even having a scrollbar ... !?!?
3109 *
3110 */
3111 static LRESULT EDIT_HScroll_Hack(WND *wnd, EDITSTATE *es, INT32 action, INT32 pos, HWND32 scroll_bar)
3112 {
3113 INT32 dx = 0;
3114 INT32 fw = es->format_rect.right - es->format_rect.left;
3115 LRESULT ret = 0;
3116
3117 if (!(es->flags & EF_HSCROLL_HACK)) {
3118 ERR(edit, "hacked WM_HSCROLL handler invoked\n");
3119 ERR(edit, " if you are _not_ running 16 bit notepad, please report\n");
3120 ERR(edit, " (this message is only displayed once per edit control)\n");
3121 es->flags |= EF_HSCROLL_HACK;
3122 }
3123
3124 switch (action) {
3125 case SB_LINELEFT:
3126 if (es->x_offset)
3127 dx = -es->char_width;
3128 break;
3129 case SB_LINERIGHT:
3130 if (es->x_offset < es->text_width)
3131 dx = es->char_width;
3132 break;
3133 case SB_PAGELEFT:
3134 if (es->x_offset)
3135 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3136 break;
3137 case SB_PAGERIGHT:
3138 if (es->x_offset < es->text_width)
3139 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3140 break;
3141 case SB_LEFT:
3142 if (es->x_offset)
3143 dx = -es->x_offset;
3144 break;
3145 case SB_RIGHT:
3146 if (es->x_offset < es->text_width)
3147 dx = es->text_width - es->x_offset;
3148 break;
3149 case SB_THUMBTRACK:
3150 es->flags |= EF_HSCROLL_TRACK;
3151 dx = pos * es->text_width / 100 - es->x_offset;
3152 break;
3153 case SB_THUMBPOSITION:
3154 es->flags &= ~EF_HSCROLL_TRACK;
3155 if (!(dx = pos * es->text_width / 100 - es->x_offset))
3156 EDIT_NOTIFY_PARENT(wnd, EN_HSCROLL, "EN_HSCROLL");
3157 break;
3158 case SB_ENDSCROLL:
3159 break;
3160
3161 /*
3162 * FIXME : the next two are undocumented !
3163 * Are we doing the right thing ?
3164 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3165 * although it's also a regular control message.
3166 */
3167 case EM_GETTHUMB16:
3168 ret = es->text_width ? es->x_offset * 100 / es->text_width : 0;
3169 break;
3170 case EM_LINESCROLL16:
3171 dx = pos;
3172 break;
3173
3174 default:
3175 ERR(edit, "undocumented (hacked) WM_HSCROLL parameter, please report\n");
3176 return 0;
3177 }
3178 if (dx)
3179 EDIT_EM_LineScroll(wnd, es, dx, 0);
3180 return ret;
3181 }
3182
3183
3184 /*********************************************************************
3185 *
3186 * WM_HSCROLL
3187 *
3188 */
3189 static LRESULT EDIT_WM_HScroll(WND *wnd, EDITSTATE *es, INT32 action, INT32 pos, HWND32 scroll_bar)
3190 {
3191 INT32 dx;
3192 INT32 fw;
3193
3194 if (!(es->style & ES_MULTILINE))
3195 return 0;
3196
3197 if (!(es->style & ES_AUTOHSCROLL))
3198 return 0;
3199
3200 if (!(es->style & WS_HSCROLL))
3201 return EDIT_HScroll_Hack(wnd, es, action, pos, scroll_bar);
3202
3203 dx = 0;
3204 fw = es->format_rect.right - es->format_rect.left;
3205 switch (action) {
3206 case SB_LINELEFT:
3207 if (es->x_offset)
3208 dx = -es->char_width;
3209 break;
3210 case SB_LINERIGHT:
3211 if (es->x_offset < es->text_width)
3212 dx = es->char_width;
3213 break;
3214 case SB_PAGELEFT:
3215 if (es->x_offset)
3216 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3217 break;
3218 case SB_PAGERIGHT:
3219 if (es->x_offset < es->text_width)
3220 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3221 break;
3222 case SB_LEFT:
3223 if (es->x_offset)
3224 dx = -es->x_offset;
3225 break;
3226 case SB_RIGHT:
3227 if (es->x_offset < es->text_width)
3228 dx = es->text_width - es->x_offset;
3229 break;
3230 case SB_THUMBTRACK:
3231 es->flags |= EF_HSCROLL_TRACK;
3232 dx = pos - es->x_offset;
3233 break;
3234 case SB_THUMBPOSITION:
3235 es->flags &= ~EF_HSCROLL_TRACK;
3236 if (!(dx = pos - es->x_offset)) {
3237 SetScrollPos32(wnd->hwndSelf, SB_HORZ, pos, TRUE);
3238 EDIT_NOTIFY_PARENT(wnd, EN_HSCROLL, "EN_HSCROLL");
3239 }
3240 break;
3241 case SB_ENDSCROLL:
3242 break;
3243
3244 default:
3245 ERR(edit, "undocumented WM_HSCROLL parameter, please report\n");
3246 return 0;
3247 }
3248 if (dx)
3249 EDIT_EM_LineScroll(wnd, es, dx, 0);
3250 return 0;
3251 }
3252
3253
3254 /*********************************************************************
3255 *
3256 * EDIT_CheckCombo
3257 *
3258 */
3259 static BOOL32 EDIT_CheckCombo(WND *wnd, UINT32 msg, INT32 key, DWORD key_data)
3260 {
3261 HWND32 hLBox;
3262
3263 if (WIDGETS_IsControl32(wnd->parent, BIC32_COMBO) &&
3264 (hLBox = COMBO_GetLBWindow(wnd->parent))) {
3265 HWND32 hCombo = wnd->parent->hwndSelf;
3266 BOOL32 bUIFlip = TRUE;
3267
3268 TRACE(combo, "[%04x]: handling msg %04x (%04x)\n",
3269 wnd->hwndSelf, (UINT16)msg, (UINT16)key);
3270
3271 switch (msg) {
3272 case WM_KEYDOWN: /* Handle F4 and arrow keys */
3273 if (key != VK_F4) {
3274 bUIFlip = (BOOL32)SendMessage32A(hCombo, CB_GETEXTENDEDUI32, 0, 0);
3275 if (SendMessage32A(hCombo, CB_GETDROPPEDSTATE32, 0, 0))
3276 bUIFlip = FALSE;
3277 }
3278 if (!bUIFlip)
3279 SendMessage32A(hLBox, WM_KEYDOWN, (WPARAM32)key, 0);
3280 else {
3281 /* make sure ComboLBox pops up */
3282 SendMessage32A(hCombo, CB_SETEXTENDEDUI32, 0, 0);
3283 SendMessage32A(hLBox, WM_KEYDOWN, VK_F4, 0);
3284 SendMessage32A(hCombo, CB_SETEXTENDEDUI32, 1, 0);
3285 }
3286 break;
3287 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
3288 bUIFlip = (BOOL32)SendMessage32A(hCombo, CB_GETEXTENDEDUI32, 0, 0);
3289 if (bUIFlip) {
3290 bUIFlip = (BOOL32)SendMessage32A(hCombo, CB_GETDROPPEDSTATE32, 0, 0);
3291 SendMessage32A(hCombo, CB_SHOWDROPDOWN32, (bUIFlip) ? FALSE : TRUE, 0);
3292 } else
3293 SendMessage32A(hLBox, WM_KEYDOWN, VK_F4, 0);
3294 break;
3295 }
3296 return TRUE;
3297 }
3298 return FALSE;
3299 }
3300
3301
3302 /*********************************************************************
3303 *
3304 * WM_KEYDOWN
3305 *
3306 * Handling of special keys that don't produce a WM_CHAR
3307 * (i.e. non-printable keys) & Backspace & Delete
3308 *
3309 */
3310 static LRESULT EDIT_WM_KeyDown(WND *wnd, EDITSTATE *es, INT32 key, DWORD key_data)
3311 {
3312 BOOL32 shift;
3313 BOOL32 control;
3314
3315 if (GetKeyState32(VK_MENU) & 0x8000)
3316 return 0;
3317
3318 shift = GetKeyState32(VK_SHIFT) & 0x8000;
3319 control = GetKeyState32(VK_CONTROL) & 0x8000;
3320
3321 switch (key) {
3322 case VK_F4:
3323 case VK_UP:
3324 if (EDIT_CheckCombo(wnd, WM_KEYDOWN, key, key_data))
3325 break;
3326 if (key == VK_F4)
3327 break;
3328 /* fall through */
3329 case VK_LEFT:
3330 if ((es->style & ES_MULTILINE) && (key == VK_UP))
3331 EDIT_MoveUp_ML(wnd, es, shift);
3332 else
3333 if (control)
3334 EDIT_MoveWordBackward(wnd, es, shift);
3335 else
3336 EDIT_MoveBackward(wnd, es, shift);
3337 break;
3338 case VK_DOWN:
3339 if (EDIT_CheckCombo(wnd, WM_KEYDOWN, key, key_data))
3340 break;
3341 /* fall through */
3342 case VK_RIGHT:
3343 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
3344 EDIT_MoveDown_ML(wnd, es, shift);
3345 else if (control)
3346 EDIT_MoveWordForward(wnd, es, shift);
3347 else
3348 EDIT_MoveForward(wnd, es, shift);
3349 break;
3350 case VK_HOME:
3351 EDIT_MoveHome(wnd, es, shift);
3352 break;
3353 case VK_END:
3354 EDIT_MoveEnd(wnd, es, shift);
3355 break;
3356 case VK_PRIOR:
3357 if (es->style & ES_MULTILINE)
3358 EDIT_MovePageUp_ML(wnd, es, shift);
3359 break;
3360 case VK_NEXT:
3361 if (es->style & ES_MULTILINE)
3362 EDIT_MovePageDown_ML(wnd, es, shift);
3363 break;
3364 case VK_BACK:
3365 if (!(es->style & ES_READONLY) && !control) {
3366 if (es->selection_start != es->selection_end)
3367 EDIT_WM_Clear(wnd, es);
3368 else {
3369 /* delete character left of caret */
3370 EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
3371 EDIT_MoveBackward(wnd, es, TRUE);
3372 EDIT_WM_Clear(wnd, es);
3373 }
3374 }
3375 break;
3376 case VK_DELETE:
3377 if (!(es->style & ES_READONLY) && !(shift && control)) {
3378 if (es->selection_start != es->selection_end) {
3379 if (shift)
3380 EDIT_WM_Cut(wnd, es);
3381 else
3382 EDIT_WM_Clear(wnd, es);
3383 } else {
3384 if (shift) {
3385 /* delete character left of caret */
3386 EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
3387 EDIT_MoveBackward(wnd, es, TRUE);
3388 EDIT_WM_Clear(wnd, es);
3389 } else if (control) {
3390 /* delete to end of line */
3391 EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
3392 EDIT_MoveEnd(wnd, es, TRUE);
3393 EDIT_WM_Clear(wnd, es);
3394 } else {
3395 /* delete character right of caret */
3396 EDIT_EM_SetSel(wnd, es, -1, 0, FALSE);
3397 EDIT_MoveForward(wnd, es, TRUE);
3398 EDIT_WM_Clear(wnd, es);
3399 }
3400 }
3401 }
3402 break;
3403 case VK_INSERT:
3404 if (shift) {
3405 if (!(es->style & ES_READONLY))
3406 EDIT_WM_Paste(wnd, es);
3407 } else if (control)
3408 EDIT_WM_Copy(wnd, es);
3409 break;
3410 }
3411 return 0;
3412 }
3413
3414
3415 /*********************************************************************
3416 *
3417 * WM_KILLFOCUS
3418 *
3419 */
3420 static LRESULT EDIT_WM_KillFocus(WND *wnd, EDITSTATE *es, HWND32 window_getting_focus)
3421 {
3422 es->flags &= ~EF_FOCUSED;
3423 DestroyCaret32();
3424 if(!(es->style & ES_NOHIDESEL))
3425 EDIT_InvalidateText(wnd, es, es->selection_start, es->selection_end);
3426 EDIT_NOTIFY_PARENT(wnd, EN_KILLFOCUS, "EN_KILLFOCUS");
3427 return 0;
3428 }
3429
3430
3431 /*********************************************************************
3432 *
3433 * WM_LBUTTONDBLCLK
3434 *
3435 * The caret position has been set on the WM_LBUTTONDOWN message
3436 *
3437 */
3438 static LRESULT EDIT_WM_LButtonDblClk(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y)
3439 {
3440 INT32 s;
3441 INT32 e = es->selection_end;
3442 INT32 l;
3443 INT32 li;
3444 INT32 ll;
3445
3446 if (!(es->flags & EF_FOCUSED))
3447 return 0;
3448
3449 l = EDIT_EM_LineFromChar(wnd, es, e);
3450 li = EDIT_EM_LineIndex(wnd, es, l);
3451 ll = EDIT_EM_LineLength(wnd, es, e);
3452 s = li + EDIT_CallWordBreakProc (wnd, es, li, e - li, ll, WB_LEFT);
3453 e = li + EDIT_CallWordBreakProc(wnd, es, li, e - li, ll, WB_RIGHT);
3454 EDIT_EM_SetSel(wnd, es, s, e, FALSE);
3455 EDIT_EM_ScrollCaret(wnd, es);
3456 return 0;
3457 }
3458
3459
3460 /*********************************************************************
3461 *
3462 * WM_LBUTTONDOWN
3463 *
3464 */
3465 static LRESULT EDIT_WM_LButtonDown(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y)
3466 {
3467 INT32 e;
3468 BOOL32 after_wrap;
3469
3470 if (!(es->flags & EF_FOCUSED))
3471 return 0;
3472
3473 SetCapture32(wnd->hwndSelf);
3474 EDIT_ConfinePoint(wnd, es, &x, &y);
3475 e = EDIT_CharFromPos(wnd, es, x, y, &after_wrap);
3476 EDIT_EM_SetSel(wnd, es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
3477 EDIT_EM_ScrollCaret(wnd, es);
3478 es->region_posx = es->region_posy = 0;
3479 SetTimer32(wnd->hwndSelf, 0, 100, NULL);
3480 return 0;
3481 }
3482
3483
3484 /*********************************************************************
3485 *
3486 * WM_LBUTTONUP
3487 *
3488 */
3489 static LRESULT EDIT_WM_LButtonUp(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y)
3490 {
3491 if (GetCapture32() == wnd->hwndSelf) {
3492 KillTimer32(wnd->hwndSelf, 0);
3493 ReleaseCapture();
3494 }
3495 return 0;
3496 }
3497
3498
3499 /*********************************************************************
3500 *
3501 * WM_MOUSEMOVE
3502 *
3503 */
3504 static LRESULT EDIT_WM_MouseMove(WND *wnd, EDITSTATE *es, DWORD keys, INT32 x, INT32 y)
3505 {
3506 INT32 e;
3507 BOOL32 after_wrap;
3508 INT32 prex, prey;
3509
3510 if (GetCapture32() != wnd->hwndSelf)
3511 return 0;
3512
3513 /*
3514 * FIXME: gotta do some scrolling if outside client
3515 * area. Maybe reset the timer ?
3516 */
3517 prex = x; prey = y;
3518 EDIT_ConfinePoint(wnd, es, &x, &y);
3519 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
3520 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
3521 e = EDIT_CharFromPos(wnd, es, x, y, &after_wrap);
3522 EDIT_EM_SetSel(wnd, es, es->selection_start, e, after_wrap);
3523 return 0;
3524 }
3525
3526
3527 /*********************************************************************
3528 *
3529 * WM_NCCREATE
3530 *
3531 */
3532 static LRESULT EDIT_WM_NCCreate(WND *wnd, LPCREATESTRUCT32A cs)
3533 {
3534 EDITSTATE *es;
3535
3536 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
3537 return FALSE;
3538 *(EDITSTATE **)wnd->wExtra = es;
3539
3540 /*
3541 * Note: since the EDITSTATE has not been fully initialized yet,
3542 * we can't use any API calls that may send
3543 * WM_XXX messages before WM_NCCREATE is completed.
3544 */
3545
3546 if (!(es->heap = HeapCreate(0, 0x10000, 0)))
3547 return FALSE;
3548 es->style = cs->style;
3549
3550 if ((es->style & WS_BORDER) && !(es->style & WS_DLGFRAME))
3551 wnd->dwStyle &= ~WS_BORDER;
3552
3553 if (es->style & ES_MULTILINE) {
3554 es->buffer_size = BUFSTART_MULTI;
3555 es->buffer_limit = BUFLIMIT_MULTI;
3556 if (es->style & WS_VSCROLL)
3557 es->style |= ES_AUTOVSCROLL;
3558 if (es->style & WS_HSCROLL)
3559 es->style |= ES_AUTOHSCROLL;
3560 es->style &= ~ES_PASSWORD;
3561 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
3562 if (es->style & ES_RIGHT)
3563 es->style &= ~ES_CENTER;
3564 es->style &= ~WS_HSCROLL;
3565 es->style &= ~ES_AUTOHSCROLL;
3566 }
3567
3568 /* FIXME: for now, all multi line controls are AUTOVSCROLL */
3569 es->style |= ES_AUTOVSCROLL;
3570 } else {
3571 es->buffer_size = BUFSTART_SINGLE;
3572 es->buffer_limit = BUFLIMIT_SINGLE;
3573 es->style &= ~ES_CENTER;
3574 es->style &= ~ES_RIGHT;
3575 es->style &= ~WS_HSCROLL;
3576 es->style &= ~WS_VSCROLL;
3577 es->style &= ~ES_AUTOVSCROLL;
3578 es->style &= ~ES_WANTRETURN;
3579 if (es->style & ES_UPPERCASE) {
3580 es->style &= ~ES_LOWERCASE;
3581 es->style &= ~ES_NUMBER;
3582 } else if (es->style & ES_LOWERCASE)
3583 es->style &= ~ES_NUMBER;
3584 if (es->style & ES_PASSWORD)
3585 es->password_char = '*';
3586
3587 /* FIXME: for now, all single line controls are AUTOHSCROLL */
3588 es->style |= ES_AUTOHSCROLL;
3589 }
3590 if (!(es->text = HeapAlloc(es->heap, 0, es->buffer_size + 1)))
3591 return FALSE;
3592 es->buffer_size = HeapSize(es->heap, 0, es->text) - 1;
3593 if (!(es->undo_text = HeapAlloc(es->heap, 0, es->buffer_size + 1)))
3594 return FALSE;
3595 es->undo_buffer_size = HeapSize(es->heap, 0, es->undo_text) - 1;
3596 *es->text = '\0';
3597 if (es->style & ES_MULTILINE)
3598 if (!(es->first_line_def = HeapAlloc(es->heap, HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
3599 return FALSE;
3600 es->line_count = 1;
3601
3602 return TRUE;
3603 }
3604
3605 /*********************************************************************
3606 *
3607 * WM_PAINT
3608 *
3609 */
3610 static void EDIT_WM_Paint(WND *wnd, EDITSTATE *es)
3611 {
3612 PAINTSTRUCT32 ps;
3613 INT32 i;
3614 HDC32 dc;
3615 HFONT32 old_font = 0;
3616 RECT32 rc;
3617 RECT32 rcLine;
3618 RECT32 rcRgn;
3619 BOOL32 rev = IsWindowEnabled32(wnd->hwndSelf) &&
3620 ((es->flags & EF_FOCUSED) ||
3621 (es->style & ES_NOHIDESEL));
3622
3623 if (es->flags & EF_UPDATE)
3624 EDIT_NOTIFY_PARENT(wnd, EN_UPDATE, "EN_UPDATE");
3625
3626 dc = BeginPaint32(wnd->hwndSelf, &ps);
3627 if(es->style & WS_BORDER) {
3628 GetClientRect32(wnd->hwndSelf, &rc);
3629 if(es->style & ES_MULTILINE) {
3630 if(es->style & WS_HSCROLL) rc.bottom++;
3631 if(es->style & WS_VSCROLL) rc.right++;
3632 }
3633 Rectangle32(dc, rc.left, rc.top, rc.right, rc.bottom);
3634 }
3635 IntersectClipRect32(dc, es->format_rect.left,
3636 es->format_rect.top,
3637 es->format_rect.right,
3638 es->format_rect.bottom);
3639 if (es->style & ES_MULTILINE) {
3640 GetClientRect32(wnd->hwndSelf, &rc);
3641 IntersectClipRect32(dc, rc.left, rc.top, rc.right, rc.bottom);
3642 }
3643 if (es->font)
3644 old_font = SelectObject32(dc, es->font);
3645 EDIT_SEND_CTLCOLOR(wnd, dc);
3646 if (!IsWindowEnabled32(wnd->hwndSelf))
3647 SetTextColor32(dc, GetSysColor32(COLOR_GRAYTEXT));
3648 GetClipBox32(dc, &rcRgn);
3649 if (es->style & ES_MULTILINE) {
3650 INT32 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3651 for (i = es->y_offset ; i <= MIN(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
3652 EDIT_GetLineRect(wnd, es, i, 0, -1, &rcLine);
3653 if (IntersectRect32(&rc, &rcRgn, &rcLine))
3654 EDIT_PaintLine(wnd, es, dc, i, rev);
3655 }
3656 } else {
3657 EDIT_GetLineRect(wnd, es, 0, 0, -1, &rcLine);
3658 if (IntersectRect32(&rc, &rcRgn, &rcLine))
3659 EDIT_PaintLine(wnd, es, dc, 0, rev);
3660 }
3661 if (es->font)
3662 SelectObject32(dc, old_font);
3663 if (es->flags & EF_FOCUSED)
3664 EDIT_SetCaretPos(wnd, es, es->selection_end,
3665 es->flags & EF_AFTER_WRAP);
3666 EndPaint32(wnd->hwndSelf, &ps);
3667 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK)) {
3668 INT32 vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
3669 SCROLLINFO si;
3670 si.cbSize = sizeof(SCROLLINFO);
3671 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
3672 si.nMin = 0;
3673 si.nMax = es->line_count + vlc - 2;
3674 si.nPage = vlc;
3675 si.nPos = es->y_offset;
3676 SetScrollInfo32(wnd->hwndSelf, SB_VERT, &si, TRUE);
3677 }
3678 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK)) {
3679 SCROLLINFO si;
3680 INT32 fw = es->format_rect.right - es->format_rect.left;
3681 si.cbSize = sizeof(SCROLLINFO);
3682 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
3683 si.nMin = 0;
3684 si.nMax = es->text_width + fw - 1;
3685 si.nPage = fw;
3686 si.nPos = es->x_offset;
3687 SetScrollInfo32(wnd->hwndSelf, SB_HORZ, &si, TRUE);
3688 }
3689
3690 if (es->flags & EF_UPDATE) {
3691 es->flags &= ~EF_UPDATE;
3692 EDIT_NOTIFY_PARENT(wnd, EN_CHANGE, "EN_CHANGE");
3693 }
3694 }
3695
3696
3697 /*********************************************************************
3698 *
3699 * WM_PASTE
3700 *
3701 */
3702 static void EDIT_WM_Paste(WND *wnd, EDITSTATE *es)
3703 {
3704 HGLOBAL32 hsrc;
3705 LPSTR src;
3706
3707 OpenClipboard32(wnd->hwndSelf);
3708 if ((hsrc = GetClipboardData32(CF_TEXT))) {
3709 src = (LPSTR)GlobalLock32(hsrc);
3710 EDIT_EM_ReplaceSel(wnd, es, TRUE, src);
3711 GlobalUnlock32(hsrc);
3712 }
3713 CloseClipboard32();
3714 }
3715
3716
3717 /*********************************************************************
3718 *
3719 * WM_SETFOCUS
3720 *
3721 */
3722 static void EDIT_WM_SetFocus(WND *wnd, EDITSTATE *es, HWND32 window_losing_focus)
3723 {
3724 es->flags |= EF_FOCUSED;
3725 CreateCaret32(wnd->hwndSelf, 0, 2, es->line_height);
3726 EDIT_SetCaretPos(wnd, es, es->selection_end,
3727 es->flags & EF_AFTER_WRAP);
3728 if(!(es->style & ES_NOHIDESEL))
3729 EDIT_InvalidateText(wnd, es, es->selection_start, es->selection_end);
3730 ShowCaret32(wnd->hwndSelf);
3731 EDIT_NOTIFY_PARENT(wnd, EN_SETFOCUS, "EN_SETFOCUS");
3732 }
3733
3734
3735 /*********************************************************************
3736 *
3737 * WM_SETFONT
3738 *
3739 * With Win95 look the margins are set to default font value unless
3740 * the system font (font == 0) is being set, in which case they are left
3741 * unchanged.
3742 *
3743 */
3744 static void EDIT_WM_SetFont(WND *wnd, EDITSTATE *es, HFONT32 font, BOOL32 redraw)
3745 {
3746 TEXTMETRIC32A tm;
3747 HDC32 dc;
3748 HFONT32 old_font = 0;
3749
3750 es->font = font;
3751 dc = GetDC32(wnd->hwndSelf);
3752 if (font)
3753 old_font = SelectObject32(dc, font);
3754 GetTextMetrics32A(dc, &tm);
3755 es->line_height = tm.tmHeight;
3756 es->char_width = tm.tmAveCharWidth;
3757 if (font)
3758 SelectObject32(dc, old_font);
3759 ReleaseDC32(wnd->hwndSelf, dc);
3760 if (font && (TWEAK_WineLook > WIN31_LOOK))
3761 EDIT_EM_SetMargins(wnd, es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
3762 EC_USEFONTINFO, EC_USEFONTINFO);
3763 if (es->style & ES_MULTILINE)
3764 EDIT_BuildLineDefs_ML(wnd, es);
3765 else {
3766 RECT32 r;
3767 GetClientRect32(wnd->hwndSelf, &r);
3768 EDIT_SetRectNP(wnd, es, &r);
3769 }
3770 if (redraw)
3771 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
3772 if (es->flags & EF_FOCUSED) {
3773 DestroyCaret32();
3774 CreateCaret32(wnd->hwndSelf, 0, 2, es->line_height);
3775 EDIT_SetCaretPos(wnd, es, es->selection_end,
3776 es->flags & EF_AFTER_WRAP);
3777 ShowCaret32(wnd->hwndSelf);
3778 }
3779 }
3780
3781
3782 /*********************************************************************
3783 *
3784 * WM_SETTEXT
3785 *
3786 * NOTES
3787 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
3788 * The modified flag is reset. No notifications are sent.
3789 *
3790 * For single-line controls, reception of WM_SETTEXT triggers:
3791 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
3792 *
3793 */
3794 static void EDIT_WM_SetText(WND *wnd, EDITSTATE *es, LPCSTR text)
3795 {
3796 EDIT_EM_SetSel(wnd, es, 0, -1, FALSE);
3797 if (text) {
3798 TRACE(edit, "\t'%s'\n", text);
3799 EDIT_EM_ReplaceSel(wnd, es, FALSE, text);
3800 } else {
3801 TRACE(edit, "\t<NULL>\n");
3802 EDIT_EM_ReplaceSel(wnd, es, FALSE, "");
3803 }
3804 es->x_offset = 0;
3805 if (es->style & ES_MULTILINE) {
3806 es->flags &= ~EF_UPDATE;
3807 } else {
3808 es->flags |= EF_UPDATE;
3809 }
3810 es->flags &= ~EF_MODIFIED;
3811 EDIT_EM_SetSel(wnd, es, 0, 0, FALSE);
3812 EDIT_EM_ScrollCaret(wnd, es);
3813 }
3814
3815
3816 /*********************************************************************
3817 *
3818 * WM_SIZE
3819 *
3820 */
3821 static void EDIT_WM_Size(WND *wnd, EDITSTATE *es, UINT32 action, INT32 width, INT32 height)
3822 {
3823 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
3824 RECT32 rc;
3825 SetRect32(&rc, 0, 0, width, height);
3826 EDIT_SetRectNP(wnd, es, &rc);
3827 InvalidateRect32(wnd->hwndSelf, NULL, TRUE);
3828 }
3829 }
3830
3831
3832 /*********************************************************************
3833 *
3834 * WM_SYSKEYDOWN
3835 *
3836 */
3837 static LRESULT EDIT_WM_SysKeyDown(WND *wnd, EDITSTATE *es, INT32 key, DWORD key_data)
3838 {
3839 if ((key == VK_BACK) && (key_data & 0x2000)) {
3840 if (EDIT_EM_CanUndo(wnd, es))
3841 EDIT_EM_Undo(wnd, es);
3842 return 0;
3843 } else if (key == VK_UP || key == VK_DOWN)
3844 if (EDIT_CheckCombo(wnd, WM_SYSKEYDOWN, key, key_data))
3845 return 0;
3846 return DefWindowProc32A(wnd->hwndSelf, WM_SYSKEYDOWN, (WPARAM32)key, (LPARAM)key_data);
3847 }
3848
3849
3850 /*********************************************************************
3851 *
3852 * WM_TIMER
3853 *
3854 */
3855 static void EDIT_WM_Timer(WND *wnd, EDITSTATE *es, INT32 id, TIMERPROC32 timer_proc)
3856 {
3857 if (es->region_posx < 0) {
3858 EDIT_MoveBackward(wnd, es, TRUE);
3859 } else if (es->region_posx > 0) {
3860 EDIT_MoveForward(wnd, es, TRUE);
3861 }
3862 /*
3863 * FIXME: gotta do some vertical scrolling here, like
3864 * EDIT_EM_LineScroll(wnd, 0, 1);
3865 */
3866 }
3867
3868
3869 /*********************************************************************
3870 *
3871 * EDIT_VScroll_Hack
3872 *
3873 * 16 bit notepad needs this. Actually it is not _our_ hack,
3874 * it is notepad's. Notepad is sending us scrollbar messages with
3875 * undocumented parameters without us even having a scrollbar ... !?!?
3876 *
3877 */
3878 static LRESULT EDIT_VScroll_Hack(WND *wnd, EDITSTATE *es, INT32 action, INT32 pos, HWND32 scroll_bar)
3879 {
3880 INT32 dy = 0;
3881 LRESULT ret = 0;
3882
3883 if (!(es->flags & EF_VSCROLL_HACK)) {
3884 ERR(edit, "hacked WM_VSCROLL handler invoked\n");
3885 ERR(edit, " if you are _not_ running 16 bit notepad, please report\n");
3886 ERR(edit, " (this message is only displayed once per edit control)\n");
3887 es->flags |= EF_VSCROLL_HACK;
3888 }
3889
3890 switch (action) {
3891 case SB_LINEUP:
3892 case SB_LINEDOWN:
3893 case SB_PAGEUP:
3894 case SB_PAGEDOWN:
3895 EDIT_EM_Scroll(wnd, es, action);
3896 return 0;
3897 case SB_TOP:
3898 dy = -es->y_offset;
3899 break;
3900 case SB_BOTTOM:
3901 dy = es->line_count - 1 - es->y_offset;
3902 break;
3903 case SB_THUMBTRACK:
3904 es->flags |= EF_VSCROLL_TRACK;
3905 dy = (pos * (es->line_count - 1) + 50) / 100 - es->y_offset;
3906 break;
3907 case SB_THUMBPOSITION:
3908 es->flags &= ~EF_VSCROLL_TRACK;
3909 if (!(dy = (pos * (es->line_count - 1) + 50) / 100 - es->y_offset))
3910 EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
3911 break;
3912 case SB_ENDSCROLL:
3913 break;
3914
3915 /*
3916 * FIXME : the next two are undocumented !
3917 * Are we doing the right thing ?
3918 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3919 * although it's also a regular control message.
3920 */
3921 case EM_GETTHUMB16:
3922 ret = (es->line_count > 1) ? es->y_offset * 100 / (es->line_count - 1) : 0;
3923 break;
3924 case EM_LINESCROLL16:
3925 dy = pos;
3926 break;
3927
3928 default:
3929 ERR(edit, "undocumented (hacked) WM_VSCROLL parameter, please report\n");
3930 return 0;
3931 }
3932 if (dy)
3933 EDIT_EM_LineScroll(wnd, es, 0, dy);
3934 return ret;
3935 }
3936
3937
3938 /*********************************************************************
3939 *
3940 * WM_VSCROLL
3941 *
3942 */
3943 static LRESULT EDIT_WM_VScroll(WND *wnd, EDITSTATE *es, INT32 action, INT32 pos, HWND32 scroll_bar)
3944 {
3945 INT32 dy;
3946
3947 if (!(es->style & ES_MULTILINE))
3948 return 0;
3949
3950 if (!(es->style & ES_AUTOVSCROLL))
3951 return 0;
3952
3953 if (!(es->style & WS_VSCROLL))
3954 return EDIT_VScroll_Hack(wnd, es, action, pos, scroll_bar);
3955
3956 dy = 0;
3957 switch (action) {
3958 case SB_LINEUP:
3959 case SB_LINEDOWN:
3960 case SB_PAGEUP:
3961 case SB_PAGEDOWN:
3962 EDIT_EM_Scroll(wnd, es, action);
3963 return 0;
3964
3965 case SB_TOP:
3966 dy = -es->y_offset;
3967 break;
3968 case SB_BOTTOM:
3969 dy = es->line_count - 1 - es->y_offset;
3970 break;
3971 case SB_THUMBTRACK:
3972 es->flags |= EF_VSCROLL_TRACK;
3973 dy = pos - es->y_offset;
3974 break;
3975 case SB_THUMBPOSITION:
3976 es->flags &= ~EF_VSCROLL_TRACK;
3977 if (!(dy = pos - es->y_offset)) {
3978 SetScrollPos32(wnd->hwndSelf, SB_VERT, pos, TRUE);
3979 EDIT_NOTIFY_PARENT(wnd, EN_VSCROLL, "EN_VSCROLL");
3980 }
3981 break;
3982 case SB_ENDSCROLL:
3983 break;
3984
3985 default:
3986 ERR(edit, "undocumented WM_VSCROLL action %d, please report\n",
3987 action);
3988 return 0;
3989 }
3990 if (dy)
3991 EDIT_EM_LineScroll(wnd, es, 0, dy);
3992 return 0;
3993 }
Maarten's multimedia branch