4 * Copyright David W. Metcalfe, 1994
5 * Copyright William Magro, 1995, 1996
6 * Copyright Frans van Dorsselaer, 1996, 1997
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
25 * This code was audited for completeness against the documented features
26 * of Comctl32.dll version 6.0 on Oct. 8, 2004, by Dimitrie O. Paun.
28 * Unless otherwise noted, we believe this code to be complete, as per
29 * the specification mentioned above.
30 * If you discover missing features, or bugs, please note them below.
33 * - EDITBALLOONTIP structure
34 * - EM_GETCUEBANNER/Edit_GetCueBannerText
35 * - EM_HIDEBALLOONTIP/Edit_HideBalloonTip
36 * - EM_SETCUEBANNER/Edit_SetCueBannerText
37 * - EM_SHOWBALLOONTIP/Edit_ShowBalloonTip
38 * - EM_GETIMESTATUS, EM_SETIMESTATUS
56 #include "wine/unicode.h"
58 #include "user_private.h"
59 #include "wine/debug.h"
61 WINE_DEFAULT_DEBUG_CHANNEL(edit);
62 WINE_DECLARE_DEBUG_CHANNEL(combo);
63 WINE_DECLARE_DEBUG_CHANNEL(relay);
65 #define BUFLIMIT_INITIAL 30000 /* initial buffer size */
66 #define GROWLENGTH 32 /* buffers granularity in bytes: must be power of 2 */
67 #define ROUND_TO_GROW(size) (((size) + (GROWLENGTH - 1)) & ~(GROWLENGTH - 1))
68 #define HSCROLL_FRACTION 3 /* scroll window by 1/3 width */
71 * extra flags for EDITSTATE.flags field
73 #define EF_MODIFIED 0x0001 /* text has been modified */
74 #define EF_FOCUSED 0x0002 /* we have input focus */
75 #define EF_UPDATE 0x0004 /* notify parent of changed state */
76 #define EF_VSCROLL_TRACK 0x0008 /* don't SetScrollPos() since we are tracking the thumb */
77 #define EF_HSCROLL_TRACK 0x0010 /* don't SetScrollPos() since we are tracking the thumb */
78 #define EF_AFTER_WRAP 0x0080 /* the caret is displayed after the last character of a
79 wrapped line, instead of in front of the next character */
80 #define EF_USE_SOFTBRK 0x0100 /* Enable soft breaks in text. */
81 #define EF_APP_HAS_HANDLE 0x0200 /* Set when an app sends EM_[G|S]ETHANDLE. We are in sole control of
82 the text buffer if this is clear. */
83 #define EF_DIALOGMODE 0x0400 /* Indicates that we are inside a dialog window */
87 END_0 = 0, /* line ends with terminating '\0' character */
88 END_WRAP, /* line is wrapped */
89 END_HARD, /* line ends with a hard return '\r\n' */
90 END_SOFT, /* line ends with a soft return '\r\r\n' */
91 END_RICH /* line ends with a single '\n' */
94 typedef struct tagLINEDEF {
95 INT length; /* bruto length of a line in bytes */
96 INT net_length; /* netto length of a line in visible characters */
98 INT width; /* width of the line in pixels */
99 INT index; /* line index into the buffer */
100 struct tagLINEDEF *next;
105 BOOL is_unicode; /* how the control was created */
106 LPWSTR text; /* the actual contents of the control */
107 UINT text_length; /* cached length of text buffer (in WCHARs) - use get_text_length() to retrieve */
108 UINT buffer_size; /* the size of the buffer in characters */
109 UINT buffer_limit; /* the maximum size to which the buffer may grow in characters */
110 HFONT font; /* NULL means standard system font */
111 INT x_offset; /* scroll offset for multi lines this is in pixels
112 for single lines it's in characters */
113 INT line_height; /* height of a screen line in pixels */
114 INT char_width; /* average character width in pixels */
115 DWORD style; /* sane version of wnd->dwStyle */
116 WORD flags; /* flags that are not in es->style or wnd->flags (EF_XXX) */
117 INT undo_insert_count; /* number of characters inserted in sequence */
118 UINT undo_position; /* character index of the insertion and deletion */
119 LPWSTR undo_text; /* deleted text */
120 UINT undo_buffer_size; /* size of the deleted text buffer */
121 INT selection_start; /* == selection_end if no selection */
122 INT selection_end; /* == current caret position */
123 WCHAR password_char; /* == 0 if no password char, and for multi line controls */
124 INT left_margin; /* in pixels */
125 INT right_margin; /* in pixels */
127 INT text_width; /* width of the widest line in pixels for multi line controls
128 and just line width for single line controls */
129 INT region_posx; /* Position of cursor relative to region: */
130 INT region_posy; /* -1: to left, 0: within, 1: to right */
131 void *word_break_proc; /* 32-bit word break proc: ANSI or Unicode */
132 INT line_count; /* number of lines */
133 INT y_offset; /* scroll offset in number of lines */
134 BOOL bCaptureState; /* flag indicating whether mouse was captured */
135 BOOL bEnableState; /* flag keeping the enable state */
136 HWND hwndSelf; /* the our window handle */
137 HWND hwndParent; /* Handle of parent for sending EN_* messages.
138 Even if parent will change, EN_* messages
139 should be sent to the first parent. */
140 HWND hwndListBox; /* handle of ComboBox's listbox or NULL */
142 * only for multi line controls
144 INT lock_count; /* amount of re-entries in the EditWndProc */
147 LINEDEF *first_line_def; /* linked list of (soft) linebreaks */
148 HLOCAL hloc32W; /* our unicode local memory block */
149 HLOCAL hloc32A; /* alias for ANSI control receiving EM_GETHANDLE
154 UINT composition_len; /* length of composition, 0 == no composition */
155 int composition_start; /* the character position for the composition */
159 #define SWAP_UINT32(x,y) do { UINT temp = (UINT)(x); (x) = (UINT)(y); (y) = temp; } while(0)
160 #define ORDER_UINT(x,y) do { if ((UINT)(y) < (UINT)(x)) SWAP_UINT32((x),(y)); } while(0)
162 /* used for disabled or read-only edit control */
163 #define EDIT_NOTIFY_PARENT(es, wNotifyCode) \
165 { /* Notify parent which has created this edit control */ \
166 TRACE("notification " #wNotifyCode " sent to hwnd=%p\n", es->hwndParent); \
167 SendMessageW(es->hwndParent, WM_COMMAND, \
168 MAKEWPARAM(GetWindowLongPtrW((es->hwndSelf),GWLP_ID), wNotifyCode), \
169 (LPARAM)(es->hwndSelf)); \
173 /*********************************************************************
178 static inline BOOL EDIT_EM_CanUndo(const EDITSTATE *es)
180 return (es->undo_insert_count || strlenW(es->undo_text));
184 /*********************************************************************
189 static inline void EDIT_EM_EmptyUndoBuffer(EDITSTATE *es)
191 es->undo_insert_count = 0;
192 *es->undo_text = '\0';
196 /**********************************************************************
199 * Returns the window version in case Wine emulates a later version
200 * of windows than the application expects.
202 * In a number of cases when windows runs an application that was
203 * designed for an earlier windows version, windows reverts
204 * to "old" behaviour of that earlier version.
206 * An example is a disabled edit control that needs to be painted.
207 * Old style behaviour is to send a WM_CTLCOLOREDIT message. This was
208 * changed in Win95, NT4.0 by a WM_CTLCOLORSTATIC message _only_ for
209 * applications with an expected version 0f 4.0 or higher.
212 static DWORD get_app_version(void)
214 static DWORD version;
217 DWORD dwEmulatedVersion;
219 DWORD dwProcVersion = GetProcessVersion(0);
221 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
222 GetVersionExW( &info );
223 dwEmulatedVersion = MAKELONG( info.dwMinorVersion, info.dwMajorVersion );
224 /* FIXME: this may not be 100% correct; see discussion on the
225 * wine developer list in Nov 1999 */
226 version = dwProcVersion < dwEmulatedVersion ? dwProcVersion : dwEmulatedVersion;
231 static HBRUSH EDIT_NotifyCtlColor(EDITSTATE *es, HDC hdc)
236 if ( get_app_version() >= 0x40000 && (!es->bEnableState || (es->style & ES_READONLY)))
237 msg = WM_CTLCOLORSTATIC;
239 msg = WM_CTLCOLOREDIT;
241 /* why do we notify to es->hwndParent, and we send this one to GetParent()? */
242 hbrush = (HBRUSH)SendMessageW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
244 hbrush = (HBRUSH)DefWindowProcW(GetParent(es->hwndSelf), msg, (WPARAM)hdc, (LPARAM)es->hwndSelf);
249 /*********************************************************************
253 * Find the beginning of words.
254 * Note: unlike the specs for a WordBreakProc, this function only
255 * allows to be called without linebreaks between s[0] up to
256 * s[count - 1]. Remember it is only called
257 * internally, so we can decide this for ourselves.
260 static INT EDIT_WordBreakProc(LPWSTR s, INT index, INT count, INT action)
264 TRACE("s=%p, index=%d, count=%d, action=%d\n", s, index, count, action);
274 if (s[index] == ' ') {
275 while (index && (s[index] == ' '))
278 while (index && (s[index] != ' '))
284 while (index && (s[index] != ' '))
297 while ((index < count) && (s[index] == ' ')) index++;
299 while (s[index] && (s[index] != ' ') && (index < count))
301 while ((s[index] == ' ') && (index < count)) index++;
306 ret = (s[index] == ' ');
309 ERR("unknown action code, please report !\n");
316 /*********************************************************************
318 * EDIT_CallWordBreakProc
320 * Call appropriate WordBreakProc (internal or external).
322 * Note: The "start" argument should always be an index referring
323 * to es->text. The actual wordbreak proc might be
324 * 16 bit, so we can't always pass any 32 bit LPSTR.
325 * Hence we assume that es->text is the buffer that holds
326 * the string under examination (we can decide this for ourselves).
329 static INT EDIT_CallWordBreakProc(EDITSTATE *es, INT start, INT index, INT count, INT action)
333 if (es->word_break_proc)
337 EDITWORDBREAKPROCW wbpW = (EDITWORDBREAKPROCW)es->word_break_proc;
339 TRACE_(relay)("(UNICODE wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
340 es->word_break_proc, debugstr_wn(es->text + start, count), index, count, action);
341 ret = wbpW(es->text + start, index, count, action);
345 EDITWORDBREAKPROCA wbpA = (EDITWORDBREAKPROCA)es->word_break_proc;
349 countA = WideCharToMultiByte(CP_ACP, 0, es->text + start, count, NULL, 0, NULL, NULL);
350 textA = HeapAlloc(GetProcessHeap(), 0, countA);
351 WideCharToMultiByte(CP_ACP, 0, es->text + start, count, textA, countA, NULL, NULL);
352 TRACE_(relay)("(ANSI wordbrk=%p,str=%s,idx=%d,cnt=%d,act=%d)\n",
353 es->word_break_proc, debugstr_an(textA, countA), index, countA, action);
354 ret = wbpA(textA, index, countA, action);
355 HeapFree(GetProcessHeap(), 0, textA);
359 ret = EDIT_WordBreakProc(es->text + start, index, count, action);
364 /*********************************************************************
366 * EDIT_BuildLineDefs_ML
368 * Build linked list of text lines.
369 * Lines can end with '\0' (last line), a character (if it is wrapped),
370 * a soft return '\r\r\n' or a hard return '\r\n'
373 static void EDIT_BuildLineDefs_ML(EDITSTATE *es, INT istart, INT iend, INT delta, HRGN hrgn)
377 LPWSTR current_position, cp;
379 LINEDEF *current_line;
380 LINEDEF *previous_line;
382 INT line_index = 0, nstart_line = 0, nstart_index = 0;
383 INT line_count = es->line_count;
387 if (istart == iend && delta == 0)
390 dc = GetDC(es->hwndSelf);
392 old_font = SelectObject(dc, es->font);
394 previous_line = NULL;
395 current_line = es->first_line_def;
397 /* Find starting line. istart must lie inside an existing line or
398 * at the end of buffer */
400 if (istart < current_line->index + current_line->length ||
401 current_line->ending == END_0)
404 previous_line = current_line;
405 current_line = current_line->next;
407 } while (current_line);
409 if (!current_line) /* Error occurred start is not inside previous buffer */
411 FIXME(" modification occurred outside buffer\n");
412 ReleaseDC(es->hwndSelf, dc);
416 /* Remember start of modifications in order to calculate update region */
417 nstart_line = line_index;
418 nstart_index = current_line->index;
420 /* We must start to reformat from the previous line since the modifications
421 * may have caused the line to wrap upwards. */
422 if (!(es->style & ES_AUTOHSCROLL) && line_index > 0)
425 current_line = previous_line;
427 start_line = current_line;
429 fw = es->format_rect.right - es->format_rect.left;
430 current_position = es->text + current_line->index;
432 if (current_line != start_line)
434 if (!current_line || current_line->index + delta > current_position - es->text)
436 /* The buffer has been expanded, create a new line and
437 insert it into the link list */
438 LINEDEF *new_line = HeapAlloc(GetProcessHeap(), 0, sizeof(LINEDEF));
439 new_line->next = previous_line->next;
440 previous_line->next = new_line;
441 current_line = new_line;
444 else if (current_line->index + delta < current_position - es->text)
446 /* The previous line merged with this line so we delete this extra entry */
447 previous_line->next = current_line->next;
448 HeapFree(GetProcessHeap(), 0, current_line);
449 current_line = previous_line->next;
453 else /* current_line->index + delta == current_position */
455 if (current_position - es->text > iend)
456 break; /* We reached end of line modifications */
457 /* else recalculate this line */
461 current_line->index = current_position - es->text;
462 orig_net_length = current_line->net_length;
464 /* Find end of line */
465 cp = current_position;
467 if (*cp == '\n') break;
468 if ((*cp == '\r') && (*(cp + 1) == '\n'))
473 /* Mark type of line termination */
475 current_line->ending = END_0;
476 current_line->net_length = strlenW(current_position);
477 } else if ((cp > current_position) && (*(cp - 1) == '\r')) {
478 current_line->ending = END_SOFT;
479 current_line->net_length = cp - current_position - 1;
480 } else if (*cp == '\n') {
481 current_line->ending = END_RICH;
482 current_line->net_length = cp - current_position;
484 current_line->ending = END_HARD;
485 current_line->net_length = cp - current_position;
488 /* Calculate line width */
489 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
490 current_position, current_line->net_length,
491 es->tabs_count, es->tabs));
493 /* FIXME: check here for lines that are too wide even in AUTOHSCROLL (> 32767 ???) */
494 if (!(es->style & ES_AUTOHSCROLL)) {
495 if (current_line->width > fw) {
500 next = EDIT_CallWordBreakProc(es, current_position - es->text,
501 prev + 1, current_line->net_length, WB_RIGHT);
502 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
503 current_position, next, es->tabs_count, es->tabs));
504 } while (current_line->width <= fw);
505 if (!prev) { /* Didn't find a line break so force a break */
510 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc,
511 current_position, next, es->tabs_count, es->tabs));
512 } while (current_line->width <= fw);
517 /* If the first line we are calculating, wrapped before istart, we must
518 * adjust istart in order for this to be reflected in the update region. */
519 if (current_line->index == nstart_index && istart > current_line->index + prev)
520 istart = current_line->index + prev;
521 /* else if we are updating the previous line before the first line we
522 * are re-calculating and it expanded */
523 else if (current_line == start_line &&
524 current_line->index != nstart_index && orig_net_length < prev)
526 /* Line expanded due to an upwards line wrap so we must partially include
527 * previous line in update region */
528 nstart_line = line_index;
529 nstart_index = current_line->index;
530 istart = current_line->index + orig_net_length;
533 current_line->net_length = prev;
534 current_line->ending = END_WRAP;
535 current_line->width = (INT)LOWORD(GetTabbedTextExtentW(dc, current_position,
536 current_line->net_length, es->tabs_count, es->tabs));
538 else if (current_line == start_line &&
539 current_line->index != nstart_index &&
540 orig_net_length < current_line->net_length) {
541 /* The previous line expanded but it's still not as wide as the client rect */
542 /* The expansion is due to an upwards line wrap so we must partially include
543 it in the update region */
544 nstart_line = line_index;
545 nstart_index = current_line->index;
546 istart = current_line->index + orig_net_length;
551 /* Adjust length to include line termination */
552 switch (current_line->ending) {
554 current_line->length = current_line->net_length + 3;
557 current_line->length = current_line->net_length + 1;
560 current_line->length = current_line->net_length + 2;
564 current_line->length = current_line->net_length;
567 es->text_width = max(es->text_width, current_line->width);
568 current_position += current_line->length;
569 previous_line = current_line;
570 current_line = current_line->next;
572 } while (previous_line->ending != END_0);
574 /* Finish adjusting line indexes by delta or remove hanging lines */
575 if (previous_line->ending == END_0)
577 LINEDEF *pnext = NULL;
579 previous_line->next = NULL;
582 pnext = current_line->next;
583 HeapFree(GetProcessHeap(), 0, current_line);
584 current_line = pnext;
592 current_line->index += delta;
593 current_line = current_line->next;
597 /* Calculate rest of modification rectangle */
602 * We calculate two rectangles. One for the first line which may have
603 * an indent with respect to the format rect. The other is a format-width
604 * rectangle that spans the rest of the lines that changed or moved.
606 rc.top = es->format_rect.top + nstart_line * es->line_height -
607 (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
608 rc.bottom = rc.top + es->line_height;
609 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT))
610 rc.left = es->format_rect.left;
612 rc.left = es->format_rect.left + (INT)LOWORD(GetTabbedTextExtentW(dc,
613 es->text + nstart_index, istart - nstart_index,
614 es->tabs_count, es->tabs)) - es->x_offset; /* Adjust for horz scroll */
615 rc.right = es->format_rect.right;
616 SetRectRgn(hrgn, rc.left, rc.top, rc.right, rc.bottom);
619 rc.left = es->format_rect.left;
620 rc.right = es->format_rect.right;
622 * If lines were added or removed we must re-paint the remainder of the
623 * lines since the remaining lines were either shifted up or down.
625 if (line_count < es->line_count) /* We added lines */
626 rc.bottom = es->line_count * es->line_height;
627 else if (line_count > es->line_count) /* We removed lines */
628 rc.bottom = line_count * es->line_height;
630 rc.bottom = line_index * es->line_height;
631 rc.bottom += es->format_rect.top;
632 rc.bottom -= (es->y_offset * es->line_height); /* Adjust for vertical scrollbar */
633 tmphrgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
634 CombineRgn(hrgn, hrgn, tmphrgn, RGN_OR);
635 DeleteObject(tmphrgn);
639 SelectObject(dc, old_font);
641 ReleaseDC(es->hwndSelf, dc);
645 static inline UINT get_text_length(EDITSTATE *es)
647 if(es->text_length == (UINT)-1)
648 es->text_length = strlenW(es->text);
649 return es->text_length;
652 /*********************************************************************
654 * EDIT_GetPasswordPointer_SL
656 * note: caller should free the (optionally) allocated buffer
659 static LPWSTR EDIT_GetPasswordPointer_SL(EDITSTATE *es)
661 if (es->style & ES_PASSWORD) {
662 INT len = get_text_length(es);
663 LPWSTR text = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
665 while(len) text[--len] = es->password_char;
672 /*********************************************************************
674 * EDIT_CalcLineWidth_SL
677 static void EDIT_CalcLineWidth_SL(EDITSTATE *es)
684 text = EDIT_GetPasswordPointer_SL(es);
686 dc = GetDC(es->hwndSelf);
688 old_font = SelectObject(dc, es->font);
690 GetTextExtentPoint32W(dc, text, strlenW(text), &size);
693 SelectObject(dc, old_font);
694 ReleaseDC(es->hwndSelf, dc);
696 if (es->style & ES_PASSWORD)
697 HeapFree(GetProcessHeap(), 0, text);
699 es->text_width = size.cx;
702 /*********************************************************************
706 * Beware: This is not the function called on EM_CHARFROMPOS
707 * The position _can_ be outside the formatting / client
709 * The return value is only the character index
712 static INT EDIT_CharFromPos(EDITSTATE *es, INT x, INT y, LPBOOL after_wrap)
717 INT x_high = 0, x_low = 0;
719 if (es->style & ES_MULTILINE) {
720 INT line = (y - es->format_rect.top) / es->line_height + es->y_offset;
722 LINEDEF *line_def = es->first_line_def;
724 while ((line > 0) && line_def->next) {
725 line_index += line_def->length;
726 line_def = line_def->next;
729 x += es->x_offset - es->format_rect.left;
730 if (es->style & ES_RIGHT)
731 x -= (es->format_rect.right - es->format_rect.left) - line_def->width;
732 else if (es->style & ES_CENTER)
733 x -= ((es->format_rect.right - es->format_rect.left) - line_def->width) / 2;
734 if (x >= line_def->width) {
736 *after_wrap = (line_def->ending == END_WRAP);
737 return line_index + line_def->net_length;
744 dc = GetDC(es->hwndSelf);
746 old_font = SelectObject(dc, es->font);
748 high = line_index + line_def->net_length + 1;
749 while (low < high - 1)
751 INT mid = (low + high) / 2;
752 INT x_now = LOWORD(GetTabbedTextExtentW(dc, es->text + line_index, mid - line_index, es->tabs_count, es->tabs));
761 if (abs(x_high - x) + 1 <= abs(x_low - x))
767 *after_wrap = ((index == line_index + line_def->net_length) &&
768 (line_def->ending == END_WRAP));
774 x -= es->format_rect.left;
780 INT indent = (es->format_rect.right - es->format_rect.left) - es->text_width;
781 if (es->style & ES_RIGHT)
783 else if (es->style & ES_CENTER)
787 text = EDIT_GetPasswordPointer_SL(es);
788 dc = GetDC(es->hwndSelf);
790 old_font = SelectObject(dc, es->font);
794 INT high = es->x_offset;
795 while (low < high - 1)
797 INT mid = (low + high) / 2;
798 GetTextExtentPoint32W( dc, text + mid,
799 es->x_offset - mid, &size );
808 if (abs(x_high + x) <= abs(x_low + x) + 1)
815 INT low = es->x_offset;
816 INT high = get_text_length(es) + 1;
817 while (low < high - 1)
819 INT mid = (low + high) / 2;
820 GetTextExtentPoint32W( dc, text + es->x_offset,
821 mid - es->x_offset, &size );
830 if (abs(x_high - x) <= abs(x_low - x) + 1)
835 if (es->style & ES_PASSWORD)
836 HeapFree(GetProcessHeap(), 0, text);
839 SelectObject(dc, old_font);
840 ReleaseDC(es->hwndSelf, dc);
845 /*********************************************************************
849 * adjusts the point to be within the formatting rectangle
850 * (so CharFromPos returns the nearest _visible_ character)
853 static void EDIT_ConfinePoint(const EDITSTATE *es, LPINT x, LPINT y)
855 *x = min(max(*x, es->format_rect.left), es->format_rect.right - 1);
856 *y = min(max(*y, es->format_rect.top), es->format_rect.bottom - 1);
860 /*********************************************************************
865 static INT EDIT_EM_LineFromChar(EDITSTATE *es, INT index)
870 if (!(es->style & ES_MULTILINE))
872 if (index > (INT)get_text_length(es))
873 return es->line_count - 1;
875 index = min(es->selection_start, es->selection_end);
878 line_def = es->first_line_def;
879 index -= line_def->length;
880 while ((index >= 0) && line_def->next) {
882 line_def = line_def->next;
883 index -= line_def->length;
889 /*********************************************************************
894 static INT EDIT_EM_LineIndex(const EDITSTATE *es, INT line)
897 const LINEDEF *line_def;
899 if (!(es->style & ES_MULTILINE))
901 if (line >= es->line_count)
905 line_def = es->first_line_def;
907 INT index = es->selection_end - line_def->length;
908 while ((index >= 0) && line_def->next) {
909 line_index += line_def->length;
910 line_def = line_def->next;
911 index -= line_def->length;
915 line_index += line_def->length;
916 line_def = line_def->next;
924 /*********************************************************************
929 static INT EDIT_EM_LineLength(EDITSTATE *es, INT index)
933 if (!(es->style & ES_MULTILINE))
934 return get_text_length(es);
937 /* get the number of remaining non-selected chars of selected lines */
938 INT32 l; /* line number */
939 INT32 li; /* index of first char in line */
941 l = EDIT_EM_LineFromChar(es, es->selection_start);
942 /* # chars before start of selection area */
943 count = es->selection_start - EDIT_EM_LineIndex(es, l);
944 l = EDIT_EM_LineFromChar(es, es->selection_end);
945 /* # chars after end of selection */
946 li = EDIT_EM_LineIndex(es, l);
947 count += li + EDIT_EM_LineLength(es, li) - es->selection_end;
950 line_def = es->first_line_def;
951 index -= line_def->length;
952 while ((index >= 0) && line_def->next) {
953 line_def = line_def->next;
954 index -= line_def->length;
956 return line_def->net_length;
960 /*********************************************************************
965 static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
967 INT len = get_text_length(es);
980 index = min(index, len);
981 dc = GetDC(es->hwndSelf);
983 old_font = SelectObject(dc, es->font);
984 if (es->style & ES_MULTILINE) {
985 l = EDIT_EM_LineFromChar(es, index);
986 y = (l - es->y_offset) * es->line_height;
987 li = EDIT_EM_LineIndex(es, l);
988 if (after_wrap && (li == index) && l) {
990 line_def = es->first_line_def;
992 line_def = line_def->next;
995 if (line_def->ending == END_WRAP) {
997 y -= es->line_height;
998 li = EDIT_EM_LineIndex(es, l);
1002 line_def = es->first_line_def;
1003 while (line_def->index != li)
1004 line_def = line_def->next;
1006 ll = line_def->net_length;
1007 lw = line_def->width;
1009 w = es->format_rect.right - es->format_rect.left;
1010 if (es->style & ES_RIGHT)
1012 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li + (index - li), ll - (index - li),
1013 es->tabs_count, es->tabs)) - es->x_offset;
1016 else if (es->style & ES_CENTER)
1018 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
1019 es->tabs_count, es->tabs)) - es->x_offset;
1024 x = LOWORD(GetTabbedTextExtentW(dc, es->text + li, index - li,
1025 es->tabs_count, es->tabs)) - es->x_offset;
1028 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
1029 if (index < es->x_offset) {
1030 GetTextExtentPoint32W(dc, text + index,
1031 es->x_offset - index, &size);
1034 GetTextExtentPoint32W(dc, text + es->x_offset,
1035 index - es->x_offset, &size);
1038 if (!es->x_offset && (es->style & (ES_RIGHT | ES_CENTER)))
1040 w = es->format_rect.right - es->format_rect.left;
1041 if (w > es->text_width)
1043 if (es->style & ES_RIGHT)
1044 x += w - es->text_width;
1045 else if (es->style & ES_CENTER)
1046 x += (w - es->text_width) / 2;
1051 if (es->style & ES_PASSWORD)
1052 HeapFree(GetProcessHeap(), 0, text);
1054 x += es->format_rect.left;
1055 y += es->format_rect.top;
1057 SelectObject(dc, old_font);
1058 ReleaseDC(es->hwndSelf, dc);
1059 return MAKELONG((INT16)x, (INT16)y);
1063 /*********************************************************************
1067 * Calculates the bounding rectangle for a line from a starting
1068 * column to an ending column.
1071 static void EDIT_GetLineRect(EDITSTATE *es, INT line, INT scol, INT ecol, LPRECT rc)
1073 INT line_index = EDIT_EM_LineIndex(es, line);
1075 if (es->style & ES_MULTILINE)
1076 rc->top = es->format_rect.top + (line - es->y_offset) * es->line_height;
1078 rc->top = es->format_rect.top;
1079 rc->bottom = rc->top + es->line_height;
1080 rc->left = (scol == 0) ? es->format_rect.left : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + scol, TRUE));
1081 rc->right = (ecol == -1) ? es->format_rect.right : (short)LOWORD(EDIT_EM_PosFromChar(es, line_index + ecol, TRUE));
1085 static inline void text_buffer_changed(EDITSTATE *es)
1087 es->text_length = (UINT)-1;
1090 /*********************************************************************
1094 * This acts as a LocalLock16(), but it locks only once. This way
1095 * you can call it whenever you like, without unlocking.
1097 * Initially the edit control allocates a HLOCAL32 buffer
1098 * (32 bit linear memory handler). However, 16 bit application
1099 * might send an EM_GETHANDLE message and expect a HLOCAL16 (16 bit SEG:OFF
1100 * handler). From that moment on we have to keep using this 16 bit memory
1101 * handler, because it is supposed to be valid at all times after EM_GETHANDLE.
1102 * What we do is create a HLOCAL16 buffer, copy the text, and do pointer
1106 static void EDIT_LockBuffer(EDITSTATE *es)
1110 if(!es->hloc32W) return;
1114 CHAR *textA = LocalLock(es->hloc32A);
1116 UINT countW_new = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
1117 if(countW_new > es->buffer_size + 1)
1119 UINT alloc_size = ROUND_TO_GROW(countW_new * sizeof(WCHAR));
1120 TRACE("Resizing 32-bit UNICODE buffer from %d+1 to %d WCHARs\n", es->buffer_size, countW_new);
1121 hloc32W_new = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1124 es->hloc32W = hloc32W_new;
1125 es->buffer_size = LocalSize(hloc32W_new)/sizeof(WCHAR) - 1;
1126 TRACE("Real new size %d+1 WCHARs\n", es->buffer_size);
1129 WARN("FAILED! Will synchronize partially\n");
1131 es->text = LocalLock(es->hloc32W);
1132 MultiByteToWideChar(CP_ACP, 0, textA, -1, es->text, es->buffer_size + 1);
1133 LocalUnlock(es->hloc32A);
1135 else es->text = LocalLock(es->hloc32W);
1137 if(es->flags & EF_APP_HAS_HANDLE) text_buffer_changed(es);
1142 /*********************************************************************
1147 static void EDIT_UnlockBuffer(EDITSTATE *es, BOOL force)
1150 /* Edit window might be already destroyed */
1151 if(!IsWindow(es->hwndSelf))
1153 WARN("edit hwnd %p already destroyed\n", es->hwndSelf);
1157 if (!es->lock_count) {
1158 ERR("lock_count == 0 ... please report\n");
1162 ERR("es->text == 0 ... please report\n");
1166 if (force || (es->lock_count == 1)) {
1169 UINT countW = get_text_length(es) + 1;
1173 UINT countA_new = WideCharToMultiByte(CP_ACP, 0, es->text, countW, NULL, 0, NULL, NULL);
1174 TRACE("Synchronizing with 32-bit ANSI buffer\n");
1175 TRACE("%d WCHARs translated to %d bytes\n", countW, countA_new);
1176 countA = LocalSize(es->hloc32A);
1177 if(countA_new > countA)
1180 UINT alloc_size = ROUND_TO_GROW(countA_new);
1181 TRACE("Resizing 32-bit ANSI buffer from %d to %d bytes\n", countA, alloc_size);
1182 hloc32A_new = LocalReAlloc(es->hloc32A, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT);
1185 es->hloc32A = hloc32A_new;
1186 countA = LocalSize(hloc32A_new);
1187 TRACE("Real new size %d bytes\n", countA);
1190 WARN("FAILED! Will synchronize partially\n");
1192 WideCharToMultiByte(CP_ACP, 0, es->text, countW,
1193 LocalLock(es->hloc32A), countA, NULL, NULL);
1194 LocalUnlock(es->hloc32A);
1197 LocalUnlock(es->hloc32W);
1201 ERR("no buffer ... please report\n");
1209 /*********************************************************************
1213 * Try to fit size + 1 characters in the buffer.
1215 static BOOL EDIT_MakeFit(EDITSTATE *es, UINT size)
1219 if (size <= es->buffer_size)
1222 TRACE("trying to ReAlloc to %d+1 characters\n", size);
1224 /* Force edit to unlock it's buffer. es->text now NULL */
1225 EDIT_UnlockBuffer(es, TRUE);
1228 UINT alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1229 if ((hNew32W = LocalReAlloc(es->hloc32W, alloc_size, LMEM_MOVEABLE | LMEM_ZEROINIT))) {
1230 TRACE("Old 32 bit handle %p, new handle %p\n", es->hloc32W, hNew32W);
1231 es->hloc32W = hNew32W;
1232 es->buffer_size = LocalSize(hNew32W)/sizeof(WCHAR) - 1;
1236 EDIT_LockBuffer(es);
1238 if (es->buffer_size < size) {
1239 WARN("FAILED ! We now have %d+1\n", es->buffer_size);
1240 EDIT_NOTIFY_PARENT(es, EN_ERRSPACE);
1243 TRACE("We now have %d+1\n", es->buffer_size);
1249 /*********************************************************************
1253 * Try to fit size + 1 bytes in the undo buffer.
1256 static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
1260 if (size <= es->undo_buffer_size)
1263 TRACE("trying to ReAlloc to %d+1\n", size);
1265 alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
1266 if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
1267 es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
1272 WARN("FAILED ! We now have %d+1\n", es->undo_buffer_size);
1278 /*********************************************************************
1280 * EDIT_UpdateTextRegion
1283 static void EDIT_UpdateTextRegion(EDITSTATE *es, HRGN hrgn, BOOL bErase)
1285 if (es->flags & EF_UPDATE) {
1286 es->flags &= ~EF_UPDATE;
1287 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1289 InvalidateRgn(es->hwndSelf, hrgn, bErase);
1293 /*********************************************************************
1298 static void EDIT_UpdateText(EDITSTATE *es, const RECT *rc, BOOL bErase)
1300 if (es->flags & EF_UPDATE) {
1301 es->flags &= ~EF_UPDATE;
1302 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
1304 InvalidateRect(es->hwndSelf, rc, bErase);
1307 /*********************************************************************
1309 * EDIT_SL_InvalidateText
1311 * Called from EDIT_InvalidateText().
1312 * Does the job for single-line controls only.
1315 static void EDIT_SL_InvalidateText(EDITSTATE *es, INT start, INT end)
1320 EDIT_GetLineRect(es, 0, start, end, &line_rect);
1321 if (IntersectRect(&rc, &line_rect, &es->format_rect))
1322 EDIT_UpdateText(es, &rc, TRUE);
1326 static inline INT get_vertical_line_count(EDITSTATE *es)
1328 INT vlc = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1332 /*********************************************************************
1334 * EDIT_ML_InvalidateText
1336 * Called from EDIT_InvalidateText().
1337 * Does the job for multi-line controls only.
1340 static void EDIT_ML_InvalidateText(EDITSTATE *es, INT start, INT end)
1342 INT vlc = get_vertical_line_count(es);
1343 INT sl = EDIT_EM_LineFromChar(es, start);
1344 INT el = EDIT_EM_LineFromChar(es, end);
1353 if ((el < es->y_offset) || (sl > es->y_offset + vlc))
1356 sc = start - EDIT_EM_LineIndex(es, sl);
1357 ec = end - EDIT_EM_LineIndex(es, el);
1358 if (sl < es->y_offset) {
1362 if (el > es->y_offset + vlc) {
1363 el = es->y_offset + vlc;
1364 ec = EDIT_EM_LineLength(es, EDIT_EM_LineIndex(es, el));
1366 GetClientRect(es->hwndSelf, &rc1);
1367 IntersectRect(&rcWnd, &rc1, &es->format_rect);
1369 EDIT_GetLineRect(es, sl, sc, ec, &rcLine);
1370 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1371 EDIT_UpdateText(es, &rcUpdate, TRUE);
1373 EDIT_GetLineRect(es, sl, sc,
1374 EDIT_EM_LineLength(es,
1375 EDIT_EM_LineIndex(es, sl)),
1377 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1378 EDIT_UpdateText(es, &rcUpdate, TRUE);
1379 for (l = sl + 1 ; l < el ; l++) {
1380 EDIT_GetLineRect(es, l, 0,
1381 EDIT_EM_LineLength(es,
1382 EDIT_EM_LineIndex(es, l)),
1384 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1385 EDIT_UpdateText(es, &rcUpdate, TRUE);
1387 EDIT_GetLineRect(es, el, 0, ec, &rcLine);
1388 if (IntersectRect(&rcUpdate, &rcWnd, &rcLine))
1389 EDIT_UpdateText(es, &rcUpdate, TRUE);
1394 /*********************************************************************
1396 * EDIT_InvalidateText
1398 * Invalidate the text from offset start up to, but not including,
1399 * offset end. Useful for (re)painting the selection.
1400 * Regions outside the linewidth are not invalidated.
1401 * end == -1 means end == TextLength.
1402 * start and end need not be ordered.
1405 static void EDIT_InvalidateText(EDITSTATE *es, INT start, INT end)
1411 end = get_text_length(es);
1419 if (es->style & ES_MULTILINE)
1420 EDIT_ML_InvalidateText(es, start, end);
1422 EDIT_SL_InvalidateText(es, start, end);
1426 /*********************************************************************
1430 * note: unlike the specs say: the order of start and end
1431 * _is_ preserved in Windows. (i.e. start can be > end)
1432 * In other words: this handler is OK
1435 static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap)
1437 UINT old_start = es->selection_start;
1438 UINT old_end = es->selection_end;
1439 UINT len = get_text_length(es);
1441 if (start == (UINT)-1) {
1442 start = es->selection_end;
1443 end = es->selection_end;
1445 start = min(start, len);
1446 end = min(end, len);
1448 es->selection_start = start;
1449 es->selection_end = end;
1451 es->flags |= EF_AFTER_WRAP;
1453 es->flags &= ~EF_AFTER_WRAP;
1454 /* Compute the necessary invalidation region. */
1455 /* Note that we don't need to invalidate regions which have
1456 * "never" been selected, or those which are "still" selected.
1457 * In fact, every time we hit a selection boundary, we can
1458 * *toggle* whether we need to invalidate. Thus we can optimize by
1459 * *sorting* the interval endpoints. Let's assume that we sort them
1461 * start <= end <= old_start <= old_end
1462 * Knuth 5.3.1 (p 183) assures us that this can be done optimally
1463 * in 5 comparisons; i.e. it is impossible to do better than the
1465 ORDER_UINT(end, old_end);
1466 ORDER_UINT(start, old_start);
1467 ORDER_UINT(old_start, old_end);
1468 ORDER_UINT(start, end);
1469 /* Note that at this point 'end' and 'old_start' are not in order, but
1470 * start is definitely the min. and old_end is definitely the max. */
1471 if (end != old_start)
1475 * ORDER_UINT32(end, old_start);
1476 * EDIT_InvalidateText(es, start, end);
1477 * EDIT_InvalidateText(es, old_start, old_end);
1478 * in place of the following if statement.
1479 * (That would complete the optimal five-comparison four-element sort.)
1481 if (old_start > end )
1483 EDIT_InvalidateText(es, start, end);
1484 EDIT_InvalidateText(es, old_start, old_end);
1488 EDIT_InvalidateText(es, start, old_start);
1489 EDIT_InvalidateText(es, end, old_end);
1492 else EDIT_InvalidateText(es, start, old_end);
1496 /*********************************************************************
1498 * EDIT_UpdateScrollInfo
1501 static void EDIT_UpdateScrollInfo(EDITSTATE *es)
1503 if ((es->style & WS_VSCROLL) && !(es->flags & EF_VSCROLL_TRACK))
1506 si.cbSize = sizeof(SCROLLINFO);
1507 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1509 si.nMax = es->line_count - 1;
1510 si.nPage = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1511 si.nPos = es->y_offset;
1512 TRACE("SB_VERT, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1513 si.nMin, si.nMax, si.nPage, si.nPos);
1514 SetScrollInfo(es->hwndSelf, SB_VERT, &si, TRUE);
1517 if ((es->style & WS_HSCROLL) && !(es->flags & EF_HSCROLL_TRACK))
1520 si.cbSize = sizeof(SCROLLINFO);
1521 si.fMask = SIF_PAGE | SIF_POS | SIF_RANGE | SIF_DISABLENOSCROLL;
1523 si.nMax = es->text_width - 1;
1524 si.nPage = es->format_rect.right - es->format_rect.left;
1525 si.nPos = es->x_offset;
1526 TRACE("SB_HORZ, nMin=%d, nMax=%d, nPage=%d, nPos=%d\n",
1527 si.nMin, si.nMax, si.nPage, si.nPos);
1528 SetScrollInfo(es->hwndSelf, SB_HORZ, &si, TRUE);
1533 /*********************************************************************
1535 * EDIT_EM_LineScroll_internal
1537 * Version of EDIT_EM_LineScroll for internal use.
1538 * It doesn't refuse if ES_MULTILINE is set and assumes that
1539 * dx is in pixels, dy - in lines.
1542 static BOOL EDIT_EM_LineScroll_internal(EDITSTATE *es, INT dx, INT dy)
1545 INT x_offset_in_pixels;
1546 INT lines_per_page = (es->format_rect.bottom - es->format_rect.top) /
1549 if (es->style & ES_MULTILINE)
1551 x_offset_in_pixels = es->x_offset;
1556 x_offset_in_pixels = (short)LOWORD(EDIT_EM_PosFromChar(es, es->x_offset, FALSE));
1559 if (-dx > x_offset_in_pixels)
1560 dx = -x_offset_in_pixels;
1561 if (dx > es->text_width - x_offset_in_pixels)
1562 dx = es->text_width - x_offset_in_pixels;
1563 nyoff = max(0, es->y_offset + dy);
1564 if (nyoff >= es->line_count - lines_per_page)
1565 nyoff = max(0, es->line_count - lines_per_page);
1566 dy = (es->y_offset - nyoff) * es->line_height;
1571 es->y_offset = nyoff;
1572 if(es->style & ES_MULTILINE)
1575 es->x_offset += dx / es->char_width;
1577 GetClientRect(es->hwndSelf, &rc1);
1578 IntersectRect(&rc, &rc1, &es->format_rect);
1579 ScrollWindowEx(es->hwndSelf, -dx, dy,
1580 NULL, &rc, NULL, NULL, SW_INVALIDATE);
1581 /* force scroll info update */
1582 EDIT_UpdateScrollInfo(es);
1584 if (dx && !(es->flags & EF_HSCROLL_TRACK))
1585 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
1586 if (dy && !(es->flags & EF_VSCROLL_TRACK))
1587 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
1591 /*********************************************************************
1595 * NOTE: dx is in average character widths, dy - in lines;
1598 static BOOL EDIT_EM_LineScroll(EDITSTATE *es, INT dx, INT dy)
1600 if (!(es->style & ES_MULTILINE))
1603 dx *= es->char_width;
1604 return EDIT_EM_LineScroll_internal(es, dx, dy);
1608 /*********************************************************************
1613 static LRESULT EDIT_EM_Scroll(EDITSTATE *es, INT action)
1617 if (!(es->style & ES_MULTILINE))
1618 return (LRESULT)FALSE;
1628 if (es->y_offset < es->line_count - 1)
1633 dy = -(es->format_rect.bottom - es->format_rect.top) / es->line_height;
1636 if (es->y_offset < es->line_count - 1)
1637 dy = (es->format_rect.bottom - es->format_rect.top) / es->line_height;
1640 return (LRESULT)FALSE;
1643 INT vlc = get_vertical_line_count(es);
1644 /* check if we are going to move too far */
1645 if(es->y_offset + dy > es->line_count - vlc)
1646 dy = es->line_count - vlc - es->y_offset;
1648 /* Notification is done in EDIT_EM_LineScroll */
1650 EDIT_EM_LineScroll(es, 0, dy);
1652 return MAKELONG((INT16)dy, (BOOL16)TRUE);
1656 /*********************************************************************
1661 static void EDIT_SetCaretPos(EDITSTATE *es, INT pos,
1664 LRESULT res = EDIT_EM_PosFromChar(es, pos, after_wrap);
1665 TRACE("%d - %dx%d\n", pos, (short)LOWORD(res), (short)HIWORD(res));
1666 SetCaretPos((short)LOWORD(res), (short)HIWORD(res));
1670 /*********************************************************************
1675 static void EDIT_EM_ScrollCaret(EDITSTATE *es)
1677 if (es->style & ES_MULTILINE) {
1681 INT cw = es->char_width;
1686 l = EDIT_EM_LineFromChar(es, es->selection_end);
1687 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP));
1688 vlc = get_vertical_line_count(es);
1689 if (l >= es->y_offset + vlc)
1690 dy = l - vlc + 1 - es->y_offset;
1691 if (l < es->y_offset)
1692 dy = l - es->y_offset;
1693 ww = es->format_rect.right - es->format_rect.left;
1694 if (x < es->format_rect.left)
1695 dx = x - es->format_rect.left - ww / HSCROLL_FRACTION / cw * cw;
1696 if (x > es->format_rect.right)
1697 dx = x - es->format_rect.left - (HSCROLL_FRACTION - 1) * ww / HSCROLL_FRACTION / cw * cw;
1698 if (dy || dx || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1700 /* check if we are going to move too far */
1701 if(es->x_offset + dx + ww > es->text_width)
1702 dx = es->text_width - ww - es->x_offset;
1703 if(dx || dy || (es->y_offset && (es->line_count - es->y_offset < vlc)))
1704 EDIT_EM_LineScroll_internal(es, dx, dy);
1711 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1712 format_width = es->format_rect.right - es->format_rect.left;
1713 if (x < es->format_rect.left) {
1714 goal = es->format_rect.left + format_width / HSCROLL_FRACTION;
1717 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1718 } while ((x < goal) && es->x_offset);
1719 /* FIXME: use ScrollWindow() somehow to improve performance */
1720 EDIT_UpdateText(es, NULL, TRUE);
1721 } else if (x > es->format_rect.right) {
1723 INT len = get_text_length(es);
1724 goal = es->format_rect.right - format_width / HSCROLL_FRACTION;
1727 x = (short)LOWORD(EDIT_EM_PosFromChar(es, es->selection_end, FALSE));
1728 x_last = (short)LOWORD(EDIT_EM_PosFromChar(es, len, FALSE));
1729 } while ((x > goal) && (x_last > es->format_rect.right));
1730 /* FIXME: use ScrollWindow() somehow to improve performance */
1731 EDIT_UpdateText(es, NULL, TRUE);
1735 if(es->flags & EF_FOCUSED)
1736 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
1740 /*********************************************************************
1745 static void EDIT_MoveBackward(EDITSTATE *es, BOOL extend)
1747 INT e = es->selection_end;
1751 if ((es->style & ES_MULTILINE) && e &&
1752 (es->text[e - 1] == '\r') && (es->text[e] == '\n')) {
1754 if (e && (es->text[e - 1] == '\r'))
1758 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1759 EDIT_EM_ScrollCaret(es);
1763 /*********************************************************************
1767 * Only for multi line controls
1768 * Move the caret one line down, on a column with the nearest
1769 * x coordinate on the screen (might be a different column).
1772 static void EDIT_MoveDown_ML(EDITSTATE *es, BOOL extend)
1774 INT s = es->selection_start;
1775 INT e = es->selection_end;
1776 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1777 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1778 INT x = (short)LOWORD(pos);
1779 INT y = (short)HIWORD(pos);
1781 e = EDIT_CharFromPos(es, x, y + es->line_height, &after_wrap);
1784 EDIT_EM_SetSel(es, s, e, after_wrap);
1785 EDIT_EM_ScrollCaret(es);
1789 /*********************************************************************
1794 static void EDIT_MoveEnd(EDITSTATE *es, BOOL extend, BOOL ctrl)
1796 BOOL after_wrap = FALSE;
1799 /* Pass a high value in x to make sure of receiving the end of the line */
1800 if (!ctrl && (es->style & ES_MULTILINE))
1801 e = EDIT_CharFromPos(es, 0x3fffffff,
1802 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), &after_wrap);
1804 e = get_text_length(es);
1805 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, after_wrap);
1806 EDIT_EM_ScrollCaret(es);
1810 /*********************************************************************
1815 static void EDIT_MoveForward(EDITSTATE *es, BOOL extend)
1817 INT e = es->selection_end;
1821 if ((es->style & ES_MULTILINE) && (es->text[e - 1] == '\r')) {
1822 if (es->text[e] == '\n')
1824 else if ((es->text[e] == '\r') && (es->text[e + 1] == '\n'))
1828 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1829 EDIT_EM_ScrollCaret(es);
1833 /*********************************************************************
1837 * Home key: move to beginning of line.
1840 static void EDIT_MoveHome(EDITSTATE *es, BOOL extend, BOOL ctrl)
1844 /* Pass the x_offset in x to make sure of receiving the first position of the line */
1845 if (!ctrl && (es->style & ES_MULTILINE))
1846 e = EDIT_CharFromPos(es, -es->x_offset,
1847 HIWORD(EDIT_EM_PosFromChar(es, es->selection_end, es->flags & EF_AFTER_WRAP)), NULL);
1850 EDIT_EM_SetSel(es, extend ? es->selection_start : e, e, FALSE);
1851 EDIT_EM_ScrollCaret(es);
1855 /*********************************************************************
1857 * EDIT_MovePageDown_ML
1859 * Only for multi line controls
1860 * Move the caret one page down, on a column with the nearest
1861 * x coordinate on the screen (might be a different column).
1864 static void EDIT_MovePageDown_ML(EDITSTATE *es, BOOL extend)
1866 INT s = es->selection_start;
1867 INT e = es->selection_end;
1868 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1869 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1870 INT x = (short)LOWORD(pos);
1871 INT y = (short)HIWORD(pos);
1873 e = EDIT_CharFromPos(es, x,
1874 y + (es->format_rect.bottom - es->format_rect.top),
1878 EDIT_EM_SetSel(es, s, e, after_wrap);
1879 EDIT_EM_ScrollCaret(es);
1883 /*********************************************************************
1885 * EDIT_MovePageUp_ML
1887 * Only for multi line controls
1888 * Move the caret one page up, on a column with the nearest
1889 * x coordinate on the screen (might be a different column).
1892 static void EDIT_MovePageUp_ML(EDITSTATE *es, BOOL extend)
1894 INT s = es->selection_start;
1895 INT e = es->selection_end;
1896 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1897 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1898 INT x = (short)LOWORD(pos);
1899 INT y = (short)HIWORD(pos);
1901 e = EDIT_CharFromPos(es, x,
1902 y - (es->format_rect.bottom - es->format_rect.top),
1906 EDIT_EM_SetSel(es, s, e, after_wrap);
1907 EDIT_EM_ScrollCaret(es);
1911 /*********************************************************************
1915 * Only for multi line controls
1916 * Move the caret one line up, on a column with the nearest
1917 * x coordinate on the screen (might be a different column).
1920 static void EDIT_MoveUp_ML(EDITSTATE *es, BOOL extend)
1922 INT s = es->selection_start;
1923 INT e = es->selection_end;
1924 BOOL after_wrap = (es->flags & EF_AFTER_WRAP);
1925 LRESULT pos = EDIT_EM_PosFromChar(es, e, after_wrap);
1926 INT x = (short)LOWORD(pos);
1927 INT y = (short)HIWORD(pos);
1929 e = EDIT_CharFromPos(es, x, y - es->line_height, &after_wrap);
1932 EDIT_EM_SetSel(es, s, e, after_wrap);
1933 EDIT_EM_ScrollCaret(es);
1937 /*********************************************************************
1939 * EDIT_MoveWordBackward
1942 static void EDIT_MoveWordBackward(EDITSTATE *es, BOOL extend)
1944 INT s = es->selection_start;
1945 INT e = es->selection_end;
1950 l = EDIT_EM_LineFromChar(es, e);
1951 ll = EDIT_EM_LineLength(es, e);
1952 li = EDIT_EM_LineIndex(es, l);
1955 li = EDIT_EM_LineIndex(es, l - 1);
1956 e = li + EDIT_EM_LineLength(es, li);
1959 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
1963 EDIT_EM_SetSel(es, s, e, FALSE);
1964 EDIT_EM_ScrollCaret(es);
1968 /*********************************************************************
1970 * EDIT_MoveWordForward
1973 static void EDIT_MoveWordForward(EDITSTATE *es, BOOL extend)
1975 INT s = es->selection_start;
1976 INT e = es->selection_end;
1981 l = EDIT_EM_LineFromChar(es, e);
1982 ll = EDIT_EM_LineLength(es, e);
1983 li = EDIT_EM_LineIndex(es, l);
1985 if ((es->style & ES_MULTILINE) && (l != es->line_count - 1))
1986 e = EDIT_EM_LineIndex(es, l + 1);
1988 e = li + EDIT_CallWordBreakProc(es,
1989 li, e - li + 1, ll, WB_RIGHT);
1993 EDIT_EM_SetSel(es, s, e, FALSE);
1994 EDIT_EM_ScrollCaret(es);
1998 /*********************************************************************
2003 static INT EDIT_PaintText(EDITSTATE *es, HDC dc, INT x, INT y, INT line, INT col, INT count, BOOL rev)
2007 LOGFONTW underline_font;
2008 HFONT hUnderline = 0;
2017 BkMode = GetBkMode(dc);
2018 BkColor = GetBkColor(dc);
2019 TextColor = GetTextColor(dc);
2021 if (es->composition_len == 0)
2023 SetBkColor(dc, GetSysColor(COLOR_HIGHLIGHT));
2024 SetTextColor(dc, GetSysColor(COLOR_HIGHLIGHTTEXT));
2025 SetBkMode( dc, OPAQUE);
2029 HFONT current = GetCurrentObject(dc,OBJ_FONT);
2030 GetObjectW(current,sizeof(LOGFONTW),&underline_font);
2031 underline_font.lfUnderline = TRUE;
2032 hUnderline = CreateFontIndirectW(&underline_font);
2033 old_font = SelectObject(dc,hUnderline);
2036 li = EDIT_EM_LineIndex(es, line);
2037 if (es->style & ES_MULTILINE) {
2038 ret = (INT)LOWORD(TabbedTextOutW(dc, x, y, es->text + li + col, count,
2039 es->tabs_count, es->tabs, es->format_rect.left - es->x_offset));
2041 LPWSTR text = EDIT_GetPasswordPointer_SL(es);
2042 TextOutW(dc, x, y, text + li + col, count);
2043 GetTextExtentPoint32W(dc, text + li + col, count, &size);
2045 if (es->style & ES_PASSWORD)
2046 HeapFree(GetProcessHeap(), 0, text);
2049 if (es->composition_len == 0)
2051 SetBkColor(dc, BkColor);
2052 SetTextColor(dc, TextColor);
2053 SetBkMode( dc, BkMode);
2058 SelectObject(dc,old_font);
2060 DeleteObject(hUnderline);
2067 /*********************************************************************
2072 static void EDIT_PaintLine(EDITSTATE *es, HDC dc, INT line, BOOL rev)
2074 INT s = es->selection_start;
2075 INT e = es->selection_end;
2082 if (es->style & ES_MULTILINE) {
2083 INT vlc = get_vertical_line_count(es);
2085 if ((line < es->y_offset) || (line > es->y_offset + vlc) || (line >= es->line_count))
2090 TRACE("line=%d\n", line);
2092 pos = EDIT_EM_PosFromChar(es, EDIT_EM_LineIndex(es, line), FALSE);
2093 x = (short)LOWORD(pos);
2094 y = (short)HIWORD(pos);
2095 li = EDIT_EM_LineIndex(es, line);
2096 ll = EDIT_EM_LineLength(es, li);
2097 s = min(es->selection_start, es->selection_end);
2098 e = max(es->selection_start, es->selection_end);
2099 s = min(li + ll, max(li, s));
2100 e = min(li + ll, max(li, e));
2101 if (rev && (s != e) &&
2102 ((es->flags & EF_FOCUSED) || (es->style & ES_NOHIDESEL))) {
2103 x += EDIT_PaintText(es, dc, x, y, line, 0, s - li, FALSE);
2104 x += EDIT_PaintText(es, dc, x, y, line, s - li, e - s, TRUE);
2105 x += EDIT_PaintText(es, dc, x, y, line, e - li, li + ll - e, FALSE);
2107 x += EDIT_PaintText(es, dc, x, y, line, 0, ll, FALSE);
2111 /*********************************************************************
2113 * EDIT_AdjustFormatRect
2115 * Adjusts the format rectangle for the current font and the
2116 * current client rectangle.
2119 static void EDIT_AdjustFormatRect(EDITSTATE *es)
2123 es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width);
2124 if (es->style & ES_MULTILINE)
2126 INT fw, vlc, max_x_offset, max_y_offset;
2128 vlc = get_vertical_line_count(es);
2129 es->format_rect.bottom = es->format_rect.top + vlc * es->line_height;
2131 /* correct es->x_offset */
2132 fw = es->format_rect.right - es->format_rect.left;
2133 max_x_offset = es->text_width - fw;
2134 if(max_x_offset < 0) max_x_offset = 0;
2135 if(es->x_offset > max_x_offset)
2136 es->x_offset = max_x_offset;
2138 /* correct es->y_offset */
2139 max_y_offset = es->line_count - vlc;
2140 if(max_y_offset < 0) max_y_offset = 0;
2141 if(es->y_offset > max_y_offset)
2142 es->y_offset = max_y_offset;
2144 /* force scroll info update */
2145 EDIT_UpdateScrollInfo(es);
2148 /* Windows doesn't care to fix text placement for SL controls */
2149 es->format_rect.bottom = es->format_rect.top + es->line_height;
2151 /* Always stay within the client area */
2152 GetClientRect(es->hwndSelf, &ClientRect);
2153 es->format_rect.bottom = min(es->format_rect.bottom, ClientRect.bottom);
2155 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL))
2156 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2158 EDIT_SetCaretPos(es, es->selection_end, es->flags & EF_AFTER_WRAP);
2162 /*********************************************************************
2166 * note: this is not (exactly) the handler called on EM_SETRECTNP
2167 * it is also used to set the rect of a single line control
2170 static void EDIT_SetRectNP(EDITSTATE *es, const RECT *rc)
2174 ExStyle = GetWindowLongPtrW(es->hwndSelf, GWL_EXSTYLE);
2176 CopyRect(&es->format_rect, rc);
2178 if (ExStyle & WS_EX_CLIENTEDGE) {
2179 es->format_rect.left++;
2180 es->format_rect.right--;
2182 if (es->format_rect.bottom - es->format_rect.top
2183 >= es->line_height + 2)
2185 es->format_rect.top++;
2186 es->format_rect.bottom--;
2189 else if (es->style & WS_BORDER) {
2190 bw = GetSystemMetrics(SM_CXBORDER) + 1;
2191 bh = GetSystemMetrics(SM_CYBORDER) + 1;
2192 es->format_rect.left += bw;
2193 es->format_rect.right -= bw;
2194 if (es->format_rect.bottom - es->format_rect.top
2195 >= es->line_height + 2 * bh)
2197 es->format_rect.top += bh;
2198 es->format_rect.bottom -= bh;
2202 es->format_rect.left += es->left_margin;
2203 es->format_rect.right -= es->right_margin;
2204 EDIT_AdjustFormatRect(es);
2208 /*********************************************************************
2212 * returns line number (not index) in high-order word of result.
2213 * NB : Q137805 is unclear about this. POINT * pointer in lParam apply
2214 * to Richedit, not to the edit control. Original documentation is valid.
2215 * FIXME: do the specs mean to return -1 if outside client area or
2216 * if outside formatting rectangle ???
2219 static LRESULT EDIT_EM_CharFromPos(EDITSTATE *es, INT x, INT y)
2227 GetClientRect(es->hwndSelf, &rc);
2228 if (!PtInRect(&rc, pt))
2231 index = EDIT_CharFromPos(es, x, y, NULL);
2232 return MAKELONG(index, EDIT_EM_LineFromChar(es, index));
2236 /*********************************************************************
2240 * Enable or disable soft breaks.
2242 * This means: insert or remove the soft linebreak character (\r\r\n).
2243 * Take care to check if the text still fits the buffer after insertion.
2244 * If not, notify with EN_ERRSPACE.
2247 static BOOL EDIT_EM_FmtLines(EDITSTATE *es, BOOL add_eol)
2249 es->flags &= ~EF_USE_SOFTBRK;
2251 es->flags |= EF_USE_SOFTBRK;
2252 FIXME("soft break enabled, not implemented\n");
2258 /*********************************************************************
2262 * Hopefully this won't fire back at us.
2263 * We always start with a fixed buffer in the local heap.
2264 * Despite of the documentation says that the local heap is used
2265 * only if DS_LOCALEDIT flag is set, NT and 2000 always allocate
2266 * buffer on the local heap.
2269 static HLOCAL EDIT_EM_GetHandle(EDITSTATE *es)
2273 if (!(es->style & ES_MULTILINE))
2277 hLocal = es->hloc32W;
2283 UINT countA, alloc_size;
2284 TRACE("Allocating 32-bit ANSI alias buffer\n");
2285 countA = WideCharToMultiByte(CP_ACP, 0, es->text, -1, NULL, 0, NULL, NULL);
2286 alloc_size = ROUND_TO_GROW(countA);
2287 if(!(es->hloc32A = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
2289 ERR("Could not allocate %d bytes for 32-bit ANSI alias buffer\n", alloc_size);
2292 textA = LocalLock(es->hloc32A);
2293 WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, countA, NULL, NULL);
2294 LocalUnlock(es->hloc32A);
2296 hLocal = es->hloc32A;
2299 es->flags |= EF_APP_HAS_HANDLE;
2300 TRACE("Returning %p, LocalSize() = %ld\n", hLocal, LocalSize(hLocal));
2305 /*********************************************************************
2310 static INT EDIT_EM_GetLine(EDITSTATE *es, INT line, LPWSTR dst, BOOL unicode)
2313 INT line_len, dst_len;
2316 if (es->style & ES_MULTILINE) {
2317 if (line >= es->line_count)
2321 i = EDIT_EM_LineIndex(es, line);
2323 line_len = EDIT_EM_LineLength(es, i);
2324 dst_len = *(WORD *)dst;
2327 if(dst_len <= line_len)
2329 memcpy(dst, src, dst_len * sizeof(WCHAR));
2332 else /* Append 0 if enough space */
2334 memcpy(dst, src, line_len * sizeof(WCHAR));
2341 INT ret = WideCharToMultiByte(CP_ACP, 0, src, line_len, (LPSTR)dst, dst_len, NULL, NULL);
2342 if(!ret && line_len) /* Insufficient buffer size */
2344 if(ret < dst_len) /* Append 0 if enough space */
2345 ((LPSTR)dst)[ret] = 0;
2351 /*********************************************************************
2356 static LRESULT EDIT_EM_GetSel(const EDITSTATE *es, PUINT start, PUINT end)
2358 UINT s = es->selection_start;
2359 UINT e = es->selection_end;
2366 return MAKELONG(s, e);
2370 /*********************************************************************
2374 * FIXME: handle ES_NUMBER and ES_OEMCONVERT here
2377 static void EDIT_EM_ReplaceSel(EDITSTATE *es, BOOL can_undo, LPCWSTR lpsz_replace, BOOL send_update, BOOL honor_limit)
2379 UINT strl = strlenW(lpsz_replace);
2380 UINT tl = get_text_length(es);
2391 TRACE("%s, can_undo %d, send_update %d\n",
2392 debugstr_w(lpsz_replace), can_undo, send_update);
2394 s = es->selection_start;
2395 e = es->selection_end;
2397 if ((s == e) && !strl)
2402 size = tl - (e - s) + strl;
2406 /* Issue the EN_MAXTEXT notification and continue with replacing text
2407 * such that buffer limit is honored. */
2408 if ((honor_limit) && (size > es->buffer_limit)) {
2409 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2410 /* Buffer limit can be smaller than the actual length of text in combobox */
2411 if (es->buffer_limit < (tl - (e-s)))
2414 strl = es->buffer_limit - (tl - (e-s));
2417 if (!EDIT_MakeFit(es, tl - (e - s) + strl))
2421 /* there is something to be deleted */
2422 TRACE("deleting stuff.\n");
2424 buf = HeapAlloc(GetProcessHeap(), 0, (bufl + 1) * sizeof(WCHAR));
2426 memcpy(buf, es->text + s, bufl * sizeof(WCHAR));
2427 buf[bufl] = 0; /* ensure 0 termination */
2429 strcpyW(es->text + s, es->text + e);
2430 text_buffer_changed(es);
2433 /* there is an insertion */
2434 tl = get_text_length(es);
2435 TRACE("inserting stuff (tl %d, strl %d, selstart %d (%s), text %s)\n", tl, strl, s, debugstr_w(es->text + s), debugstr_w(es->text));
2436 for (p = es->text + tl ; p >= es->text + s ; p--)
2438 for (i = 0 , p = es->text + s ; i < strl ; i++)
2439 p[i] = lpsz_replace[i];
2440 if(es->style & ES_UPPERCASE)
2441 CharUpperBuffW(p, strl);
2442 else if(es->style & ES_LOWERCASE)
2443 CharLowerBuffW(p, strl);
2444 text_buffer_changed(es);
2446 if (es->style & ES_MULTILINE)
2448 INT st = min(es->selection_start, es->selection_end);
2449 INT vlc = get_vertical_line_count(es);
2451 hrgn = CreateRectRgn(0, 0, 0, 0);
2452 EDIT_BuildLineDefs_ML(es, st, st + strl,
2453 strl - abs(es->selection_end - es->selection_start), hrgn);
2454 /* if text is too long undo all changes */
2455 if (honor_limit && !(es->style & ES_AUTOVSCROLL) && (es->line_count > vlc)) {
2457 strcpyW(es->text + e, es->text + e + strl);
2459 for (i = 0 , p = es->text ; i < e - s ; i++)
2461 text_buffer_changed(es);
2462 EDIT_BuildLineDefs_ML(es, s, e,
2463 abs(es->selection_end - es->selection_start) - strl, hrgn);
2466 hrgn = CreateRectRgn(0, 0, 0, 0);
2467 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2471 INT fw = es->format_rect.right - es->format_rect.left;
2472 EDIT_CalcLineWidth_SL(es);
2473 /* remove chars that don't fit */
2474 if (honor_limit && !(es->style & ES_AUTOHSCROLL) && (es->text_width > fw)) {
2475 while ((es->text_width > fw) && s + strl >= s) {
2476 strcpyW(es->text + s + strl - 1, es->text + s + strl);
2478 EDIT_CalcLineWidth_SL(es);
2480 text_buffer_changed(es);
2481 EDIT_NOTIFY_PARENT(es, EN_MAXTEXT);
2487 utl = strlenW(es->undo_text);
2488 if (!es->undo_insert_count && (*es->undo_text && (s == es->undo_position))) {
2489 /* undo-buffer is extended to the right */
2490 EDIT_MakeUndoFit(es, utl + e - s);
2491 memcpy(es->undo_text + utl, buf, (e - s)*sizeof(WCHAR));
2492 (es->undo_text + utl)[e - s] = 0; /* ensure 0 termination */
2493 } else if (!es->undo_insert_count && (*es->undo_text && (e == es->undo_position))) {
2494 /* undo-buffer is extended to the left */
2495 EDIT_MakeUndoFit(es, utl + e - s);
2496 for (p = es->undo_text + utl ; p >= es->undo_text ; p--)
2498 for (i = 0 , p = es->undo_text ; i < e - s ; i++)
2500 es->undo_position = s;
2502 /* new undo-buffer */
2503 EDIT_MakeUndoFit(es, e - s);
2504 memcpy(es->undo_text, buf, (e - s)*sizeof(WCHAR));
2505 es->undo_text[e - s] = 0; /* ensure 0 termination */
2506 es->undo_position = s;
2508 /* any deletion makes the old insertion-undo invalid */
2509 es->undo_insert_count = 0;
2511 EDIT_EM_EmptyUndoBuffer(es);
2515 if ((s == es->undo_position) ||
2516 ((es->undo_insert_count) &&
2517 (s == es->undo_position + es->undo_insert_count)))
2519 * insertion is new and at delete position or
2520 * an extension to either left or right
2522 es->undo_insert_count += strl;
2524 /* new insertion undo */
2525 es->undo_position = s;
2526 es->undo_insert_count = strl;
2527 /* new insertion makes old delete-buffer invalid */
2528 *es->undo_text = '\0';
2531 EDIT_EM_EmptyUndoBuffer(es);
2535 HeapFree(GetProcessHeap(), 0, buf);
2539 /* If text has been deleted and we're right or center aligned then scroll rightward */
2540 if (es->style & (ES_RIGHT | ES_CENTER))
2542 INT delta = strl - abs(es->selection_end - es->selection_start);
2544 if (delta < 0 && es->x_offset)
2546 if (abs(delta) > es->x_offset)
2549 es->x_offset += delta;
2553 EDIT_EM_SetSel(es, s, s, FALSE);
2554 es->flags |= EF_MODIFIED;
2555 if (send_update) es->flags |= EF_UPDATE;
2558 EDIT_UpdateTextRegion(es, hrgn, TRUE);
2562 EDIT_UpdateText(es, NULL, TRUE);
2564 EDIT_EM_ScrollCaret(es);
2566 /* force scroll info update */
2567 EDIT_UpdateScrollInfo(es);
2570 if(send_update || (es->flags & EF_UPDATE))
2572 es->flags &= ~EF_UPDATE;
2573 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2578 /*********************************************************************
2582 * FIXME: ES_LOWERCASE, ES_UPPERCASE, ES_OEMCONVERT, ES_NUMBER ???
2585 static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc)
2587 if (!(es->style & ES_MULTILINE))
2591 WARN("called with NULL handle\n");
2595 EDIT_UnlockBuffer(es, TRUE);
2601 LocalFree(es->hloc32A);
2613 countA = LocalSize(hloc);
2614 textA = LocalLock(hloc);
2615 countW = MultiByteToWideChar(CP_ACP, 0, textA, countA, NULL, 0);
2616 if(!(hloc32W_new = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, countW * sizeof(WCHAR))))
2618 ERR("Could not allocate new unicode buffer\n");
2621 textW = LocalLock(hloc32W_new);
2622 MultiByteToWideChar(CP_ACP, 0, textA, countA, textW, countW);
2623 LocalUnlock(hloc32W_new);
2627 LocalFree(es->hloc32W);
2629 es->hloc32W = hloc32W_new;
2633 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
2635 es->flags |= EF_APP_HAS_HANDLE;
2636 EDIT_LockBuffer(es);
2638 es->x_offset = es->y_offset = 0;
2639 es->selection_start = es->selection_end = 0;
2640 EDIT_EM_EmptyUndoBuffer(es);
2641 es->flags &= ~EF_MODIFIED;
2642 es->flags &= ~EF_UPDATE;
2643 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2644 EDIT_UpdateText(es, NULL, TRUE);
2645 EDIT_EM_ScrollCaret(es);
2646 /* force scroll info update */
2647 EDIT_UpdateScrollInfo(es);
2651 /*********************************************************************
2655 * NOTE: this version currently implements WinNT limits
2658 static void EDIT_EM_SetLimitText(EDITSTATE *es, UINT limit)
2660 if (!limit) limit = ~0u;
2661 if (!(es->style & ES_MULTILINE)) limit = min(limit, 0x7ffffffe);
2662 es->buffer_limit = limit;
2666 /*********************************************************************
2670 * EC_USEFONTINFO is used as a left or right value i.e. lParam and not as an
2671 * action wParam despite what the docs say. EC_USEFONTINFO calculates the
2672 * margin according to the textmetrics of the current font.
2674 * FIXME - With TrueType or vector fonts EC_USEFONTINFO currently sets one third
2675 * of the char's width as the margin, but this is not how Windows handles this.
2676 * For all other fonts Windows sets the margins to zero.
2678 * FIXME - When EC_USEFONTINFO is used the margins only change if the
2679 * edit control is equal to or larger than a certain size.
2680 * Interestingly if one subtracts both the left and right margins from
2681 * this size one always seems to get an even number. The extents of
2682 * the (four character) string "'**'" match this quite closely, so
2683 * we'll use this until we come up with a better idea.
2685 static int calc_min_set_margin_size(HDC dc, INT left, INT right)
2687 WCHAR magic_string[] = {'\'','*','*','\'', 0};
2690 GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz);
2691 return sz.cx + left + right;
2694 static void EDIT_EM_SetMargins(EDITSTATE *es, INT action,
2695 WORD left, WORD right, BOOL repaint)
2698 INT default_left_margin = 0; /* in pixels */
2699 INT default_right_margin = 0; /* in pixels */
2701 /* Set the default margins depending on the font */
2702 if (es->font && (left == EC_USEFONTINFO || right == EC_USEFONTINFO)) {
2703 HDC dc = GetDC(es->hwndSelf);
2704 HFONT old_font = SelectObject(dc, es->font);
2705 GetTextMetricsW(dc, &tm);
2706 /* The default margins are only non zero for TrueType or Vector fonts */
2707 if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) {
2710 /* This must be calculated more exactly! But how? */
2711 default_left_margin = tm.tmAveCharWidth / 2;
2712 default_right_margin = tm.tmAveCharWidth / 2;
2713 min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin);
2714 GetClientRect(es->hwndSelf, &rc);
2715 if(rc.right - rc.left < min_size) {
2716 default_left_margin = es->left_margin;
2717 default_right_margin = es->right_margin;
2720 SelectObject(dc, old_font);
2721 ReleaseDC(es->hwndSelf, dc);
2724 if (action & EC_LEFTMARGIN) {
2725 es->format_rect.left -= es->left_margin;
2726 if (left != EC_USEFONTINFO)
2727 es->left_margin = left;
2729 es->left_margin = default_left_margin;
2730 es->format_rect.left += es->left_margin;
2733 if (action & EC_RIGHTMARGIN) {
2734 es->format_rect.right += es->right_margin;
2735 if (right != EC_USEFONTINFO)
2736 es->right_margin = right;
2738 es->right_margin = default_right_margin;
2739 es->format_rect.right -= es->right_margin;
2742 if (action & (EC_LEFTMARGIN | EC_RIGHTMARGIN)) {
2743 EDIT_AdjustFormatRect(es);
2744 if (repaint) EDIT_UpdateText(es, NULL, TRUE);
2747 TRACE("left=%d, right=%d\n", es->left_margin, es->right_margin);
2751 /*********************************************************************
2753 * EM_SETPASSWORDCHAR
2756 static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c)
2760 if (es->style & ES_MULTILINE)
2763 if (es->password_char == c)
2766 style = GetWindowLongW( es->hwndSelf, GWL_STYLE );
2767 es->password_char = c;
2769 SetWindowLongW( es->hwndSelf, GWL_STYLE, style | ES_PASSWORD );
2770 es->style |= ES_PASSWORD;
2772 SetWindowLongW( es->hwndSelf, GWL_STYLE, style & ~ES_PASSWORD );
2773 es->style &= ~ES_PASSWORD;
2775 EDIT_UpdateText(es, NULL, TRUE);
2779 /*********************************************************************
2784 static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, const INT *tabs)
2786 if (!(es->style & ES_MULTILINE))
2788 HeapFree(GetProcessHeap(), 0, es->tabs);
2789 es->tabs_count = count;
2793 es->tabs = HeapAlloc(GetProcessHeap(), 0, count * sizeof(INT));
2794 memcpy(es->tabs, tabs, count * sizeof(INT));
2800 /*********************************************************************
2802 * EM_SETWORDBREAKPROC
2805 static void EDIT_EM_SetWordBreakProc(EDITSTATE *es, void *wbp)
2807 if (es->word_break_proc == wbp)
2810 es->word_break_proc = wbp;
2812 if ((es->style & ES_MULTILINE) && !(es->style & ES_AUTOHSCROLL)) {
2813 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
2814 EDIT_UpdateText(es, NULL, TRUE);
2819 /*********************************************************************
2824 static BOOL EDIT_EM_Undo(EDITSTATE *es)
2829 /* As per MSDN spec, for a single-line edit control,
2830 the return value is always TRUE */
2831 if( es->style & ES_READONLY )
2832 return !(es->style & ES_MULTILINE);
2834 ulength = strlenW(es->undo_text);
2836 utext = HeapAlloc(GetProcessHeap(), 0, (ulength + 1) * sizeof(WCHAR));
2838 strcpyW(utext, es->undo_text);
2840 TRACE("before UNDO:insertion length = %d, deletion buffer = %s\n",
2841 es->undo_insert_count, debugstr_w(utext));
2843 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2844 EDIT_EM_EmptyUndoBuffer(es);
2845 EDIT_EM_ReplaceSel(es, TRUE, utext, TRUE, TRUE);
2846 EDIT_EM_SetSel(es, es->undo_position, es->undo_position + es->undo_insert_count, FALSE);
2847 /* send the notification after the selection start and end are set */
2848 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
2849 EDIT_EM_ScrollCaret(es);
2850 HeapFree(GetProcessHeap(), 0, utext);
2852 TRACE("after UNDO:insertion length = %d, deletion buffer = %s\n",
2853 es->undo_insert_count, debugstr_w(es->undo_text));
2858 /* Helper function for WM_CHAR
2860 * According to an MSDN blog article titled "Just because you're a control
2861 * doesn't mean that you're necessarily inside a dialog box," multiline edit
2862 * controls without ES_WANTRETURN would attempt to detect whether it is inside
2863 * a dialog box or not.
2865 static inline BOOL EDIT_IsInsideDialog(EDITSTATE *es)
2867 return (es->flags & EF_DIALOGMODE);
2871 /*********************************************************************
2876 static void EDIT_WM_Paste(EDITSTATE *es)
2881 /* Protect read-only edit control from modification */
2882 if(es->style & ES_READONLY)
2885 OpenClipboard(es->hwndSelf);
2886 if ((hsrc = GetClipboardData(CF_UNICODETEXT))) {
2887 src = GlobalLock(hsrc);
2888 EDIT_EM_ReplaceSel(es, TRUE, src, TRUE, TRUE);
2891 else if (es->style & ES_PASSWORD) {
2892 /* clear selected text in password edit box even with empty clipboard */
2893 const WCHAR empty_strW[] = { 0 };
2894 EDIT_EM_ReplaceSel(es, TRUE, empty_strW, TRUE, TRUE);
2900 /*********************************************************************
2905 static void EDIT_WM_Copy(EDITSTATE *es)
2907 INT s = min(es->selection_start, es->selection_end);
2908 INT e = max(es->selection_start, es->selection_end);
2916 hdst = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, (len + 1) * sizeof(WCHAR));
2917 dst = GlobalLock(hdst);
2918 memcpy(dst, es->text + s, len * sizeof(WCHAR));
2919 dst[len] = 0; /* ensure 0 termination */
2920 TRACE("%s\n", debugstr_w(dst));
2922 OpenClipboard(es->hwndSelf);
2924 SetClipboardData(CF_UNICODETEXT, hdst);
2929 /*********************************************************************
2934 static inline void EDIT_WM_Clear(EDITSTATE *es)
2936 static const WCHAR empty_stringW[] = {0};
2938 /* Protect read-only edit control from modification */
2939 if(es->style & ES_READONLY)
2942 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
2946 /*********************************************************************
2951 static inline void EDIT_WM_Cut(EDITSTATE *es)
2958 /*********************************************************************
2963 static LRESULT EDIT_WM_Char(EDITSTATE *es, WCHAR c)
2967 control = GetKeyState(VK_CONTROL) & 0x8000;
2971 /* If it's not a multiline edit box, it would be ignored below.
2972 * For multiline edit without ES_WANTRETURN, we have to make a
2975 if ((es->style & ES_MULTILINE) && !(es->style & ES_WANTRETURN))
2976 if (EDIT_IsInsideDialog(es))
2979 if (es->style & ES_MULTILINE) {
2980 if (es->style & ES_READONLY) {
2981 EDIT_MoveHome(es, FALSE, FALSE);
2982 EDIT_MoveDown_ML(es, FALSE);
2984 static const WCHAR cr_lfW[] = {'\r','\n',0};
2985 EDIT_EM_ReplaceSel(es, TRUE, cr_lfW, TRUE, TRUE);
2990 if ((es->style & ES_MULTILINE) && !(es->style & ES_READONLY))
2992 static const WCHAR tabW[] = {'\t',0};
2993 if (EDIT_IsInsideDialog(es))
2995 EDIT_EM_ReplaceSel(es, TRUE, tabW, TRUE, TRUE);
2999 if (!(es->style & ES_READONLY) && !control) {
3000 if (es->selection_start != es->selection_end)
3003 /* delete character left of caret */
3004 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3005 EDIT_MoveBackward(es, TRUE);
3011 if (!(es->style & ES_PASSWORD))
3012 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3015 if (!(es->style & ES_READONLY))
3016 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3019 if (!((es->style & ES_READONLY) || (es->style & ES_PASSWORD)))
3020 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3023 if (!(es->style & ES_READONLY))
3024 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3028 /*If Edit control style is ES_NUMBER allow users to key in only numeric values*/
3029 if( (es->style & ES_NUMBER) && !( c >= '0' && c <= '9') )
3032 if (!(es->style & ES_READONLY) && (c >= ' ') && (c != 127)) {
3036 EDIT_EM_ReplaceSel(es, TRUE, str, TRUE, TRUE);
3044 /*********************************************************************
3049 static void EDIT_WM_Command(EDITSTATE *es, INT code, INT id, HWND control)
3051 if (code || control)
3056 SendMessageW(es->hwndSelf, WM_UNDO, 0, 0);
3059 SendMessageW(es->hwndSelf, WM_CUT, 0, 0);
3062 SendMessageW(es->hwndSelf, WM_COPY, 0, 0);
3065 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3068 SendMessageW(es->hwndSelf, WM_CLEAR, 0, 0);
3071 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3072 EDIT_EM_ScrollCaret(es);
3075 ERR("unknown menu item, please report\n");
3081 /*********************************************************************
3085 * Note: the resource files resource/sysres_??.rc cannot define a
3086 * single popup menu. Hence we use a (dummy) menubar
3087 * containing the single popup menu as its first item.
3089 * FIXME: the message identifiers have been chosen arbitrarily,
3090 * hence we use MF_BYPOSITION.
3091 * We might as well use the "real" values (anybody knows ?)
3092 * The menu definition is in resources/sysres_??.rc.
3093 * Once these are OK, we better use MF_BYCOMMAND here
3094 * (as we do in EDIT_WM_Command()).
3097 static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
3099 HMENU menu = LoadMenuA(user32_module, "EDITMENU");
3100 HMENU popup = GetSubMenu(menu, 0);
3101 UINT start = es->selection_start;
3102 UINT end = es->selection_end;
3104 ORDER_UINT(start, end);
3107 EnableMenuItem(popup, 0, MF_BYPOSITION | (EDIT_EM_CanUndo(es) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3109 EnableMenuItem(popup, 2, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3111 EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
3113 EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3115 EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
3117 EnableMenuItem(popup, 7, MF_BYPOSITION | (start || (end != get_text_length(es)) ? MF_ENABLED : MF_GRAYED));
3119 if (x == -1 && y == -1) /* passed via VK_APPS press/release */
3122 /* Windows places the menu at the edit's center in this case */
3123 GetClientRect(es->hwndSelf, &rc);
3124 MapWindowPoints(es->hwndSelf, 0, (POINT *)&rc, 2);
3125 x = rc.left + (rc.right - rc.left) / 2;
3126 y = rc.top + (rc.bottom - rc.top) / 2;
3129 TrackPopupMenu(popup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, x, y, 0, es->hwndSelf, NULL);
3134 /*********************************************************************
3139 static INT EDIT_WM_GetText(const EDITSTATE *es, INT count, LPWSTR dst, BOOL unicode)
3141 if(!count) return 0;
3145 lstrcpynW(dst, es->text, count);
3146 return strlenW(dst);
3150 LPSTR textA = (LPSTR)dst;
3151 if (!WideCharToMultiByte(CP_ACP, 0, es->text, -1, textA, count, NULL, NULL))
3152 textA[count - 1] = 0; /* ensure 0 termination */
3153 return strlen(textA);
3157 /*********************************************************************
3162 static BOOL EDIT_CheckCombo(EDITSTATE *es, UINT msg, INT key)
3164 HWND hLBox = es->hwndListBox;
3172 hCombo = GetParent(es->hwndSelf);
3176 TRACE_(combo)("[%p]: handling msg %x (%x)\n", es->hwndSelf, msg, key);
3178 if (key == VK_UP || key == VK_DOWN)
3180 if (SendMessageW(hCombo, CB_GETEXTENDEDUI, 0, 0))
3183 if (msg == WM_KEYDOWN || nEUI)
3184 bDropped = (BOOL)SendMessageW(hCombo, CB_GETDROPPEDSTATE, 0, 0);
3190 if (!bDropped && nEUI && (key == VK_UP || key == VK_DOWN))
3192 /* make sure ComboLBox pops up */
3193 SendMessageW(hCombo, CB_SETEXTENDEDUI, FALSE, 0);
3198 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)key, 0);
3201 case WM_SYSKEYDOWN: /* Handle Alt+up/down arrows */
3203 SendMessageW(hCombo, CB_SHOWDROPDOWN, bDropped ? FALSE : TRUE, 0);
3205 SendMessageW(hLBox, WM_KEYDOWN, (WPARAM)VK_F4, 0);
3210 SendMessageW(hCombo, CB_SETEXTENDEDUI, TRUE, 0);
3216 /*********************************************************************
3220 * Handling of special keys that don't produce a WM_CHAR
3221 * (i.e. non-printable keys) & Backspace & Delete
3224 static LRESULT EDIT_WM_KeyDown(EDITSTATE *es, INT key)
3229 if (GetKeyState(VK_MENU) & 0x8000)
3232 shift = GetKeyState(VK_SHIFT) & 0x8000;
3233 control = GetKeyState(VK_CONTROL) & 0x8000;
3238 if (EDIT_CheckCombo(es, WM_KEYDOWN, key) || key == VK_F4)
3243 if ((es->style & ES_MULTILINE) && (key == VK_UP))
3244 EDIT_MoveUp_ML(es, shift);
3247 EDIT_MoveWordBackward(es, shift);
3249 EDIT_MoveBackward(es, shift);
3252 if (EDIT_CheckCombo(es, WM_KEYDOWN, key))
3256 if ((es->style & ES_MULTILINE) && (key == VK_DOWN))
3257 EDIT_MoveDown_ML(es, shift);
3259 EDIT_MoveWordForward(es, shift);
3261 EDIT_MoveForward(es, shift);
3264 EDIT_MoveHome(es, shift, control);
3267 EDIT_MoveEnd(es, shift, control);
3270 if (es->style & ES_MULTILINE)
3271 EDIT_MovePageUp_ML(es, shift);
3273 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3276 if (es->style & ES_MULTILINE)
3277 EDIT_MovePageDown_ML(es, shift);
3279 EDIT_CheckCombo(es, WM_KEYDOWN, key);
3282 if (!(es->style & ES_READONLY) && !(shift && control)) {
3283 if (es->selection_start != es->selection_end) {
3290 /* delete character left of caret */
3291 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3292 EDIT_MoveBackward(es, TRUE);
3294 } else if (control) {
3295 /* delete to end of line */
3296 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3297 EDIT_MoveEnd(es, TRUE, FALSE);
3300 /* delete character right of caret */
3301 EDIT_EM_SetSel(es, (UINT)-1, 0, FALSE);
3302 EDIT_MoveForward(es, TRUE);
3310 if (!(es->style & ES_READONLY))
3316 /* If the edit doesn't want the return send a message to the default object */
3317 if(!(es->style & ES_MULTILINE) || !(es->style & ES_WANTRETURN))
3321 if (!EDIT_IsInsideDialog(es)) break;
3323 dw = SendMessageW(es->hwndParent, DM_GETDEFID, 0, 0);
3324 if (HIWORD(dw) == DC_HASDEFID)
3326 HWND hwDefCtrl = GetDlgItem(es->hwndParent, LOWORD(dw));
3329 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, (WPARAM)hwDefCtrl, (LPARAM)TRUE);
3330 PostMessageW(hwDefCtrl, WM_KEYDOWN, VK_RETURN, 0);
3336 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3337 PostMessageW(es->hwndParent, WM_CLOSE, 0, 0);
3340 if ((es->style & ES_MULTILINE) && EDIT_IsInsideDialog(es))
3341 SendMessageW(es->hwndParent, WM_NEXTDLGCTL, shift, 0);
3348 /*********************************************************************
3353 static LRESULT EDIT_WM_KillFocus(EDITSTATE *es)
3355 es->flags &= ~EF_FOCUSED;
3357 if(!(es->style & ES_NOHIDESEL))
3358 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3359 EDIT_NOTIFY_PARENT(es, EN_KILLFOCUS);
3364 /*********************************************************************
3368 * The caret position has been set on the WM_LBUTTONDOWN message
3371 static LRESULT EDIT_WM_LButtonDblClk(EDITSTATE *es)
3374 INT e = es->selection_end;
3379 es->bCaptureState = TRUE;
3380 SetCapture(es->hwndSelf);
3382 l = EDIT_EM_LineFromChar(es, e);
3383 li = EDIT_EM_LineIndex(es, l);
3384 ll = EDIT_EM_LineLength(es, e);
3385 s = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_LEFT);
3386 e = li + EDIT_CallWordBreakProc(es, li, e - li, ll, WB_RIGHT);
3387 EDIT_EM_SetSel(es, s, e, FALSE);
3388 EDIT_EM_ScrollCaret(es);
3389 es->region_posx = es->region_posy = 0;
3390 SetTimer(es->hwndSelf, 0, 100, NULL);
3395 /*********************************************************************
3400 static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
3405 es->bCaptureState = TRUE;
3406 SetCapture(es->hwndSelf);
3407 EDIT_ConfinePoint(es, &x, &y);
3408 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3409 EDIT_EM_SetSel(es, (keys & MK_SHIFT) ? es->selection_start : e, e, after_wrap);
3410 EDIT_EM_ScrollCaret(es);
3411 es->region_posx = es->region_posy = 0;
3412 SetTimer(es->hwndSelf, 0, 100, NULL);
3414 if (!(es->flags & EF_FOCUSED))
3415 SetFocus(es->hwndSelf);
3421 /*********************************************************************
3426 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
3428 if (es->bCaptureState) {
3429 KillTimer(es->hwndSelf, 0);
3430 if (GetCapture() == es->hwndSelf) ReleaseCapture();
3432 es->bCaptureState = FALSE;
3437 /*********************************************************************
3442 static LRESULT EDIT_WM_MButtonDown(EDITSTATE *es)
3444 SendMessageW(es->hwndSelf, WM_PASTE, 0, 0);
3449 /*********************************************************************
3454 static LRESULT EDIT_WM_MouseMove(EDITSTATE *es, INT x, INT y)
3460 /* If the mouse has been captured by process other than the edit control itself,
3461 * the windows edit controls will not select the strings with mouse move.
3463 if (!es->bCaptureState || GetCapture() != es->hwndSelf)
3467 * FIXME: gotta do some scrolling if outside client
3468 * area. Maybe reset the timer ?
3471 EDIT_ConfinePoint(es, &x, &y);
3472 es->region_posx = (prex < x) ? -1 : ((prex > x) ? 1 : 0);
3473 es->region_posy = (prey < y) ? -1 : ((prey > y) ? 1 : 0);
3474 e = EDIT_CharFromPos(es, x, y, &after_wrap);
3475 EDIT_EM_SetSel(es, es->selection_start, e, after_wrap);
3476 EDIT_SetCaretPos(es,es->selection_end,es->flags & EF_AFTER_WRAP);
3481 /*********************************************************************
3486 static void EDIT_WM_Paint(EDITSTATE *es, HDC hdc)
3499 BOOL rev = es->bEnableState &&
3500 ((es->flags & EF_FOCUSED) ||
3501 (es->style & ES_NOHIDESEL));
3502 dc = hdc ? hdc : BeginPaint(es->hwndSelf, &ps);
3504 GetClientRect(es->hwndSelf, &rcClient);
3506 /* get the background brush */
3507 brush = EDIT_NotifyCtlColor(es, dc);
3509 /* paint the border and the background */
3510 IntersectClipRect(dc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
3512 if(es->style & WS_BORDER) {
3513 bw = GetSystemMetrics(SM_CXBORDER);
3514 bh = GetSystemMetrics(SM_CYBORDER);
3516 if(es->style & ES_MULTILINE) {
3517 if(es->style & WS_HSCROLL) rc.bottom+=bh;
3518 if(es->style & WS_VSCROLL) rc.right+=bw;
3521 /* Draw the frame. Same code as in nonclient.c */
3522 old_brush = SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
3523 PatBlt(dc, rc.left, rc.top, rc.right - rc.left, bh, PATCOPY);
3524 PatBlt(dc, rc.left, rc.top, bw, rc.bottom - rc.top, PATCOPY);
3525 PatBlt(dc, rc.left, rc.bottom - 1, rc.right - rc.left, -bw, PATCOPY);
3526 PatBlt(dc, rc.right - 1, rc.top, -bw, rc.bottom - rc.top, PATCOPY);
3527 SelectObject(dc, old_brush);
3529 /* Keep the border clean */
3530 IntersectClipRect(dc, rc.left+bw, rc.top+bh,
3531 max(rc.right-bw, rc.left+bw), max(rc.bottom-bh, rc.top+bh));
3534 GetClipBox(dc, &rc);
3535 FillRect(dc, &rc, brush);
3537 IntersectClipRect(dc, es->format_rect.left,
3538 es->format_rect.top,
3539 es->format_rect.right,
3540 es->format_rect.bottom);
3541 if (es->style & ES_MULTILINE) {
3543 IntersectClipRect(dc, rc.left, rc.top, rc.right, rc.bottom);
3546 old_font = SelectObject(dc, es->font);
3548 if (!es->bEnableState)
3549 SetTextColor(dc, GetSysColor(COLOR_GRAYTEXT));
3550 GetClipBox(dc, &rcRgn);
3551 if (es->style & ES_MULTILINE) {
3552 INT vlc = get_vertical_line_count(es);
3553 for (i = es->y_offset ; i <= min(es->y_offset + vlc, es->y_offset + es->line_count - 1) ; i++) {
3554 EDIT_GetLineRect(es, i, 0, -1, &rcLine);
3555 if (IntersectRect(&rc, &rcRgn, &rcLine))
3556 EDIT_PaintLine(es, dc, i, rev);
3559 EDIT_GetLineRect(es, 0, 0, -1, &rcLine);
3560 if (IntersectRect(&rc, &rcRgn, &rcLine))
3561 EDIT_PaintLine(es, dc, 0, rev);
3564 SelectObject(dc, old_font);
3567 EndPaint(es->hwndSelf, &ps);
3571 /*********************************************************************
3576 static void EDIT_WM_SetFocus(EDITSTATE *es)
3578 es->flags |= EF_FOCUSED;
3580 if (!(es->style & ES_NOHIDESEL))
3581 EDIT_InvalidateText(es, es->selection_start, es->selection_end);
3583 /* single line edit updates itself */
3584 if (!(es->style & ES_MULTILINE))
3586 HDC hdc = GetDC(es->hwndSelf);
3587 EDIT_WM_Paint(es, hdc);
3588 ReleaseDC(es->hwndSelf, hdc);
3591 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3592 EDIT_SetCaretPos(es, es->selection_end,
3593 es->flags & EF_AFTER_WRAP);
3594 ShowCaret(es->hwndSelf);
3595 EDIT_NOTIFY_PARENT(es, EN_SETFOCUS);
3599 /*********************************************************************
3603 * With Win95 look the margins are set to default font value unless
3604 * the system font (font == 0) is being set, in which case they are left
3608 static void EDIT_WM_SetFont(EDITSTATE *es, HFONT font, BOOL redraw)
3616 dc = GetDC(es->hwndSelf);
3618 old_font = SelectObject(dc, font);
3619 GetTextMetricsW(dc, &tm);
3620 es->line_height = tm.tmHeight;
3621 es->char_width = tm.tmAveCharWidth;
3623 SelectObject(dc, old_font);
3624 ReleaseDC(es->hwndSelf, dc);
3626 /* Reset the format rect and the margins */
3627 GetClientRect(es->hwndSelf, &clientRect);
3628 EDIT_SetRectNP(es, &clientRect);
3629 EDIT_EM_SetMargins(es, EC_LEFTMARGIN | EC_RIGHTMARGIN,
3630 EC_USEFONTINFO, EC_USEFONTINFO, FALSE);
3632 if (es->style & ES_MULTILINE)
3633 EDIT_BuildLineDefs_ML(es, 0, get_text_length(es), 0, NULL);
3635 EDIT_CalcLineWidth_SL(es);
3638 EDIT_UpdateText(es, NULL, TRUE);
3639 if (es->flags & EF_FOCUSED) {
3641 CreateCaret(es->hwndSelf, 0, 1, es->line_height);
3642 EDIT_SetCaretPos(es, es->selection_end,
3643 es->flags & EF_AFTER_WRAP);
3644 ShowCaret(es->hwndSelf);
3649 /*********************************************************************
3654 * For multiline controls (ES_MULTILINE), reception of WM_SETTEXT triggers:
3655 * The modified flag is reset. No notifications are sent.
3657 * For single-line controls, reception of WM_SETTEXT triggers:
3658 * The modified flag is reset. EN_UPDATE and EN_CHANGE notifications are sent.
3661 static void EDIT_WM_SetText(EDITSTATE *es, LPCWSTR text, BOOL unicode)
3663 LPWSTR textW = NULL;
3664 if (!unicode && text)
3666 LPCSTR textA = (LPCSTR)text;
3667 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
3668 textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR));
3670 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
3674 if (es->flags & EF_UPDATE)
3675 /* fixed this bug once; complain if we see it about to happen again. */
3676 ERR("SetSel may generate UPDATE message whose handler may reset "
3679 EDIT_EM_SetSel(es, 0, (UINT)-1, FALSE);
3682 TRACE("%s\n", debugstr_w(text));
3683 EDIT_EM_ReplaceSel(es, FALSE, text, FALSE, FALSE);
3685 HeapFree(GetProcessHeap(), 0, textW);
3689 static const WCHAR empty_stringW[] = {0};
3691 EDIT_EM_ReplaceSel(es, FALSE, empty_stringW, FALSE, FALSE);
3694 es->flags &= ~EF_MODIFIED;
3695 EDIT_EM_SetSel(es, 0, 0, FALSE);
3697 /* Send the notification after the selection start and end have been set
3698 * edit control doesn't send notification on WM_SETTEXT
3699 * if it is multiline, or it is part of combobox
3701 if( !((es->style & ES_MULTILINE) || es->hwndListBox))
3703 EDIT_NOTIFY_PARENT(es, EN_UPDATE);
3704 EDIT_NOTIFY_PARENT(es, EN_CHANGE);
3706 EDIT_EM_ScrollCaret(es);
3707 EDIT_UpdateScrollInfo(es);
3711 /*********************************************************************
3716 static void EDIT_WM_Size(EDITSTATE *es, UINT action, INT width, INT height)
3718 if ((action == SIZE_MAXIMIZED) || (action == SIZE_RESTORED)) {
3720 TRACE("width = %d, height = %d\n", width, height);
3721 SetRect(&rc, 0, 0, width, height);
3722 EDIT_SetRectNP(es, &rc);
3723 EDIT_UpdateText(es, NULL, TRUE);
3728 /*********************************************************************
3732 * This message is sent by SetWindowLong on having changed either the Style
3733 * or the extended style.
3735 * We ensure that the window's version of the styles and the EDITSTATE's agree.
3737 * See also EDIT_WM_NCCreate
3739 * It appears that the Windows version of the edit control allows the style
3740 * (as retrieved by GetWindowLong) to be any value and maintains an internal
3741 * style variable which will generally be different. In this function we
3742 * update the internal style based on what changed in the externally visible
3745 * Much of this content as based upon the MSDN, especially:
3746 * Platform SDK Documentation -> User Interface Services ->
3747 * Windows User Interface -> Edit Controls -> Edit Control Reference ->
3748 * Edit Control Styles
3750 static LRESULT EDIT_WM_StyleChanged ( EDITSTATE *es, WPARAM which, const STYLESTRUCT *style)
3752 if (GWL_STYLE == which) {
3753 DWORD style_change_mask;
3755 /* Only a subset of changes can be applied after the control
3758 style_change_mask = ES_UPPERCASE | ES_LOWERCASE |
3760 if (es->style & ES_MULTILINE)
3761 style_change_mask |= ES_WANTRETURN;
3763 new_style = style->styleNew & style_change_mask;
3765 /* Number overrides lowercase overrides uppercase (at least it
3766 * does in Win95). However I'll bet that ES_NUMBER would be
3767 * invalid under Win 3.1.
3769 if (new_style & ES_NUMBER) {
3770 ; /* do not override the ES_NUMBER */
3771 } else if (new_style & ES_LOWERCASE) {
3772 new_style &= ~ES_UPPERCASE;
3775 es->style = (es->style & ~style_change_mask) | new_style;
3776 } else if (GWL_EXSTYLE == which) {
3777 ; /* FIXME - what is needed here */
3779 WARN ("Invalid style change %ld\n",which);
3785 /*********************************************************************
3790 static LRESULT EDIT_WM_SysKeyDown(EDITSTATE *es, INT key, DWORD key_data)
3792 if ((key == VK_BACK) && (key_data & 0x2000)) {
3793 if (EDIT_EM_CanUndo(es))
3796 } else if (key == VK_UP || key == VK_DOWN) {
3797 if (EDIT_CheckCombo(es, WM_SYSKEYDOWN, key))
3800 return DefWindowProcW(es->hwndSelf, WM_SYSKEYDOWN, (WPARAM)key, (LPARAM)key_data);
3804 /*********************************************************************
3809 static void EDIT_WM_Timer(EDITSTATE *es)
3811 if (es->region_posx < 0) {
3812 EDIT_MoveBackward(es, TRUE);
3813 } else if (es->region_posx > 0) {
3814 EDIT_MoveForward(es, TRUE);
3817 * FIXME: gotta do some vertical scrolling here, like
3818 * EDIT_EM_LineScroll(hwnd, 0, 1);
3822 /*********************************************************************
3827 static LRESULT EDIT_WM_HScroll(EDITSTATE *es, INT action, INT pos)
3832 if (!(es->style & ES_MULTILINE))
3835 if (!(es->style & ES_AUTOHSCROLL))
3839 fw = es->format_rect.right - es->format_rect.left;
3842 TRACE("SB_LINELEFT\n");
3844 dx = -es->char_width;
3847 TRACE("SB_LINERIGHT\n");
3848 if (es->x_offset < es->text_width)
3849 dx = es->char_width;
3852 TRACE("SB_PAGELEFT\n");
3854 dx = -fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3857 TRACE("SB_PAGERIGHT\n");
3858 if (es->x_offset < es->text_width)
3859 dx = fw / HSCROLL_FRACTION / es->char_width * es->char_width;
3867 TRACE("SB_RIGHT\n");
3868 if (es->x_offset < es->text_width)
3869 dx = es->text_width - es->x_offset;
3872 TRACE("SB_THUMBTRACK %d\n", pos);
3873 es->flags |= EF_HSCROLL_TRACK;
3874 if(es->style & WS_HSCROLL)
3875 dx = pos - es->x_offset;
3880 if(pos < 0 || pos > 100) return 0;
3881 /* Assume default scroll range 0-100 */
3882 fw = es->format_rect.right - es->format_rect.left;
3883 new_x = pos * (es->text_width - fw) / 100;
3884 dx = es->text_width ? (new_x - es->x_offset) : 0;
3887 case SB_THUMBPOSITION:
3888 TRACE("SB_THUMBPOSITION %d\n", pos);
3889 es->flags &= ~EF_HSCROLL_TRACK;
3890 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3891 dx = pos - es->x_offset;
3896 if(pos < 0 || pos > 100) return 0;
3897 /* Assume default scroll range 0-100 */
3898 fw = es->format_rect.right - es->format_rect.left;
3899 new_x = pos * (es->text_width - fw) / 100;
3900 dx = es->text_width ? (new_x - es->x_offset) : 0;
3903 /* force scroll info update */
3904 EDIT_UpdateScrollInfo(es);
3905 EDIT_NOTIFY_PARENT(es, EN_HSCROLL);
3909 TRACE("SB_ENDSCROLL\n");
3912 * FIXME : the next two are undocumented !
3913 * Are we doing the right thing ?
3914 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
3915 * although it's also a regular control message.
3917 case EM_GETTHUMB: /* this one is used by NT notepad */
3920 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_HSCROLL)
3921 ret = GetScrollPos(es->hwndSelf, SB_HORZ);
3924 /* Assume default scroll range 0-100 */
3925 INT fw = es->format_rect.right - es->format_rect.left;
3926 ret = es->text_width ? es->x_offset * 100 / (es->text_width - fw) : 0;
3928 TRACE("EM_GETTHUMB: returning %ld\n", ret);
3932 TRACE("EM_LINESCROLL16\n");
3937 ERR("undocumented WM_HSCROLL action %d (0x%04x), please report\n",
3943 INT fw = es->format_rect.right - es->format_rect.left;
3944 /* check if we are going to move too far */
3945 if(es->x_offset + dx + fw > es->text_width)
3946 dx = es->text_width - fw - es->x_offset;
3948 EDIT_EM_LineScroll_internal(es, dx, 0);
3954 /*********************************************************************
3959 static LRESULT EDIT_WM_VScroll(EDITSTATE *es, INT action, INT pos)
3963 if (!(es->style & ES_MULTILINE))
3966 if (!(es->style & ES_AUTOVSCROLL))
3975 TRACE("action %d (%s)\n", action, (action == SB_LINEUP ? "SB_LINEUP" :
3976 (action == SB_LINEDOWN ? "SB_LINEDOWN" :
3977 (action == SB_PAGEUP ? "SB_PAGEUP" :
3979 EDIT_EM_Scroll(es, action);
3986 TRACE("SB_BOTTOM\n");
3987 dy = es->line_count - 1 - es->y_offset;
3990 TRACE("SB_THUMBTRACK %d\n", pos);
3991 es->flags |= EF_VSCROLL_TRACK;
3992 if(es->style & WS_VSCROLL)
3993 dy = pos - es->y_offset;
3996 /* Assume default scroll range 0-100 */
3999 if(pos < 0 || pos > 100) return 0;
4000 vlc = get_vertical_line_count(es);
4001 new_y = pos * (es->line_count - vlc) / 100;
4002 dy = es->line_count ? (new_y - es->y_offset) : 0;
4003 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4004 es->line_count, es->y_offset, pos, dy);
4007 case SB_THUMBPOSITION:
4008 TRACE("SB_THUMBPOSITION %d\n", pos);
4009 es->flags &= ~EF_VSCROLL_TRACK;
4010 if(es->style & WS_VSCROLL)
4011 dy = pos - es->y_offset;
4014 /* Assume default scroll range 0-100 */
4017 if(pos < 0 || pos > 100) return 0;
4018 vlc = get_vertical_line_count(es);
4019 new_y = pos * (es->line_count - vlc) / 100;
4020 dy = es->line_count ? (new_y - es->y_offset) : 0;
4021 TRACE("line_count=%d, y_offset=%d, pos=%d, dy = %d\n",
4022 es->line_count, es->y_offset, pos, dy);
4026 /* force scroll info update */
4027 EDIT_UpdateScrollInfo(es);
4028 EDIT_NOTIFY_PARENT(es, EN_VSCROLL);
4032 TRACE("SB_ENDSCROLL\n");
4035 * FIXME : the next two are undocumented !
4036 * Are we doing the right thing ?
4037 * At least Win 3.1 Notepad makes use of EM_GETTHUMB this way,
4038 * although it's also a regular control message.
4040 case EM_GETTHUMB: /* this one is used by NT notepad */
4043 if(GetWindowLongW( es->hwndSelf, GWL_STYLE ) & WS_VSCROLL)
4044 ret = GetScrollPos(es->hwndSelf, SB_VERT);
4047 /* Assume default scroll range 0-100 */
4048 INT vlc = get_vertical_line_count(es);
4049 ret = es->line_count ? es->y_offset * 100 / (es->line_count - vlc) : 0;
4051 TRACE("EM_GETTHUMB: returning %ld\n", ret);
4055 TRACE("EM_LINESCROLL %d\n", pos);
4060 ERR("undocumented WM_VSCROLL action %d (0x%04x), please report\n",
4065 EDIT_EM_LineScroll(es, 0, dy);
4069 /*********************************************************************
4073 * FIXME: is this right ? (or should it be only VSCROLL)
4074 * (and maybe only for edit controls that really have their
4075 * own scrollbars) (and maybe only for multiline controls ?)
4076 * All in all: very poorly documented
4079 static LRESULT EDIT_EM_GetThumb(EDITSTATE *es)
4081 return MAKELONG(EDIT_WM_VScroll(es, EM_GETTHUMB, 0),
4082 EDIT_WM_HScroll(es, EM_GETTHUMB, 0));
4086 /********************************************************************
4088 * The Following code is to handle inline editing from IMEs
4091 static void EDIT_GetCompositionStr(HIMC hIMC, LPARAM CompFlag, EDITSTATE *es)
4094 LPWSTR lpCompStr = NULL;
4095 LPSTR lpCompStrAttr = NULL;
4098 buflen = ImmGetCompositionStringW(hIMC, GCS_COMPSTR, NULL, 0);
4105 lpCompStr = HeapAlloc(GetProcessHeap(),0,buflen + sizeof(WCHAR));
4108 ERR("Unable to allocate IME CompositionString\n");
4113 ImmGetCompositionStringW(hIMC, GCS_COMPSTR, lpCompStr, buflen);
4114 lpCompStr[buflen/sizeof(WCHAR)] = 0;
4116 if (CompFlag & GCS_COMPATTR)
4119 * We do not use the attributes yet. it would tell us what characters
4120 * are in transition and which are converted or decided upon
4122 dwBufLenAttr = ImmGetCompositionStringW(hIMC, GCS_COMPATTR, NULL, 0);
4126 lpCompStrAttr = HeapAlloc(GetProcessHeap(),0,dwBufLenAttr+1);
4129 ERR("Unable to allocate IME Attribute String\n");
4130 HeapFree(GetProcessHeap(),0,lpCompStr);
4133 ImmGetCompositionStringW(hIMC,GCS_COMPATTR, lpCompStrAttr,
4135 lpCompStrAttr[dwBufLenAttr] = 0;
4138 lpCompStrAttr = NULL;
4141 /* check for change in composition start */
4142 if (es->selection_end < es->composition_start)
4143 es->composition_start = es->selection_end;
4145 /* replace existing selection string */
4146 es->selection_start = es->composition_start;
4148 if (es->composition_len > 0)
4149 es->selection_end = es->composition_start + es->composition_len;
4151 es->selection_end = es->selection_start;
4153 EDIT_EM_ReplaceSel(es, FALSE, lpCompStr, TRUE, TRUE);
4154 es->composition_len = abs(es->composition_start - es->selection_end);
4156 es->selection_start = es->composition_start;
4157 es->selection_end = es->selection_start + es->composition_len;
4159 HeapFree(GetProcessHeap(),0,lpCompStrAttr);
4160 HeapFree(GetProcessHeap(),0,lpCompStr);
4163 static void EDIT_GetResultStr(HIMC hIMC, EDITSTATE *es)
4168 buflen = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
4174 lpResultStr = HeapAlloc(GetProcessHeap(),0, buflen+sizeof(WCHAR));
4177 ERR("Unable to alloc buffer for IME string\n");
4181 ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, lpResultStr, buflen);
4182 lpResultStr[buflen/sizeof(WCHAR)] = 0;
4184 /* check for change in composition start */
4185 if (es->selection_end < es->composition_start)
4186 es->composition_start = es->selection_end;
4188 es->selection_start = es->composition_start;
4189 es->selection_end = es->composition_start + es->composition_len;
4190 EDIT_EM_ReplaceSel(es, TRUE, lpResultStr, TRUE, TRUE);
4191 es->composition_start = es->selection_end;
4192 es->composition_len = 0;
4194 HeapFree(GetProcessHeap(),0,lpResultStr);
4197 static void EDIT_ImeComposition(HWND hwnd, LPARAM CompFlag, EDITSTATE *es)
4202 if (es->composition_len == 0 && es->selection_start != es->selection_end)
4204 static const WCHAR empty_stringW[] = {0};
4205 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
4206 es->composition_start = es->selection_end;
4209 hIMC = ImmGetContext(hwnd);
4213 if (CompFlag & GCS_RESULTSTR)
4214 EDIT_GetResultStr(hIMC, es);
4215 if (CompFlag & GCS_COMPSTR)
4216 EDIT_GetCompositionStr(hIMC, CompFlag, es);
4217 cursor = ImmGetCompositionStringW(hIMC, GCS_CURSORPOS, 0, 0);
4218 ImmReleaseContext(hwnd, hIMC);
4219 EDIT_SetCaretPos(es, es->selection_start + cursor, es->flags & EF_AFTER_WRAP);
4223 /*********************************************************************
4227 * See also EDIT_WM_StyleChanged
4229 static LRESULT EDIT_WM_NCCreate(HWND hwnd, LPCREATESTRUCTW lpcs, BOOL unicode)
4234 TRACE("Creating %s edit control, style = %08x\n",
4235 unicode ? "Unicode" : "ANSI", lpcs->style);
4237 if (!(es = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*es))))
4239 SetWindowLongPtrW( hwnd, 0, (LONG_PTR)es );
4242 * Note: since the EDITSTATE has not been fully initialized yet,
4243 * we can't use any API calls that may send
4244 * WM_XXX messages before WM_NCCREATE is completed.
4247 es->is_unicode = unicode;
4248 es->style = lpcs->style;
4250 es->bEnableState = !(es->style & WS_DISABLED);
4252 es->hwndSelf = hwnd;
4253 /* Save parent, which will be notified by EN_* messages */
4254 es->hwndParent = lpcs->hwndParent;
4256 if (es->style & ES_COMBO)
4257 es->hwndListBox = GetDlgItem(es->hwndParent, ID_CB_LISTBOX);
4259 /* FIXME: should we handle changes to WS_EX_RIGHT style after creation? */
4260 if (lpcs->dwExStyle & WS_EX_RIGHT) es->style |= ES_RIGHT;
4262 /* Number overrides lowercase overrides uppercase (at least it
4263 * does in Win95). However I'll bet that ES_NUMBER would be
4264 * invalid under Win 3.1.
4266 if (es->style & ES_NUMBER) {
4267 ; /* do not override the ES_NUMBER */
4268 } else if (es->style & ES_LOWERCASE) {
4269 es->style &= ~ES_UPPERCASE;
4271 if (es->style & ES_MULTILINE) {
4272 es->buffer_limit = BUFLIMIT_INITIAL;
4273 if (es->style & WS_VSCROLL)
4274 es->style |= ES_AUTOVSCROLL;
4275 if (es->style & WS_HSCROLL)
4276 es->style |= ES_AUTOHSCROLL;
4277 es->style &= ~ES_PASSWORD;
4278 if ((es->style & ES_CENTER) || (es->style & ES_RIGHT)) {
4279 /* Confirmed - RIGHT overrides CENTER */
4280 if (es->style & ES_RIGHT)
4281 es->style &= ~ES_CENTER;
4282 es->style &= ~WS_HSCROLL;
4283 es->style &= ~ES_AUTOHSCROLL;
4286 es->buffer_limit = BUFLIMIT_INITIAL;
4287 if ((es->style & ES_RIGHT) && (es->style & ES_CENTER))
4288 es->style &= ~ES_CENTER;
4289 es->style &= ~WS_HSCROLL;
4290 es->style &= ~WS_VSCROLL;
4291 if (es->style & ES_PASSWORD)
4292 es->password_char = '*';
4295 alloc_size = ROUND_TO_GROW((es->buffer_size + 1) * sizeof(WCHAR));
4296 if(!(es->hloc32W = LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT, alloc_size)))
4298 es->buffer_size = LocalSize(es->hloc32W)/sizeof(WCHAR) - 1;
4300 if (!(es->undo_text = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (es->buffer_size + 1) * sizeof(WCHAR))))
4302 es->undo_buffer_size = es->buffer_size;
4304 if (es->style & ES_MULTILINE)
4305 if (!(es->first_line_def = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINEDEF))))
4310 * In Win95 look and feel, the WS_BORDER style is replaced by the
4311 * WS_EX_CLIENTEDGE style for the edit control. This gives the edit
4312 * control a nonclient area so we don't need to draw the border.
4313 * If WS_BORDER without WS_EX_CLIENTEDGE is specified we shouldn't have
4314 * a nonclient area and we should handle painting the border ourselves.
4316 * When making modifications please ensure that the code still works
4317 * for edit controls created directly with style 0x50800000, exStyle 0
4318 * (which should have a single pixel border)
4320 if (lpcs->dwExStyle & WS_EX_CLIENTEDGE)
4321 es->style &= ~WS_BORDER;
4322 else if (es->style & WS_BORDER)
4323 SetWindowLongW(hwnd, GWL_STYLE, es->style & ~WS_BORDER);
4328 SetWindowLongPtrW(es->hwndSelf, 0, 0);
4329 HeapFree(GetProcessHeap(), 0, es->first_line_def);
4330 HeapFree(GetProcessHeap(), 0, es->undo_text);
4331 if (es->hloc32W) LocalFree(es->hloc32W);
4332 HeapFree(GetProcessHeap(), 0, es);
4337 /*********************************************************************
4342 static LRESULT EDIT_WM_Create(EDITSTATE *es, LPCWSTR name)
4346 TRACE("%s\n", debugstr_w(name));
4348 * To initialize some final structure members, we call some helper
4349 * functions. However, since the EDITSTATE is not consistent (i.e.
4350 * not fully initialized), we should be very careful which
4351 * functions can be called, and in what order.
4353 EDIT_WM_SetFont(es, 0, FALSE);
4354 EDIT_EM_EmptyUndoBuffer(es);
4356 /* We need to calculate the format rect
4357 (applications may send EM_SETMARGINS before the control gets visible) */
4358 GetClientRect(es->hwndSelf, &clientRect);
4359 EDIT_SetRectNP(es, &clientRect);
4361 if (name && *name) {
4362 EDIT_EM_ReplaceSel(es, FALSE, name, FALSE, FALSE);
4363 /* if we insert text to the editline, the text scrolls out
4364 * of the window, as the caret is placed after the insert
4365 * pos normally; thus we reset es->selection... to 0 and
4368 es->selection_start = es->selection_end = 0;
4369 /* Adobe Photoshop does NOT like this. and MSDN says that EN_CHANGE
4370 * Messages are only to be sent when the USER does something to
4371 * change the contents. So I am removing this EN_CHANGE
4373 * EDIT_NOTIFY_PARENT(es, EN_CHANGE);
4375 EDIT_EM_ScrollCaret(es);
4377 /* force scroll info update */
4378 EDIT_UpdateScrollInfo(es);
4379 /* The rule seems to return 1 here for success */
4380 /* Power Builder masked edit controls will crash */
4382 /* FIXME: is that in all cases so ? */
4387 /*********************************************************************
4392 static LRESULT EDIT_WM_NCDestroy(EDITSTATE *es)
4397 LocalFree(es->hloc32W);
4400 LocalFree(es->hloc32A);
4402 pc = es->first_line_def;
4406 HeapFree(GetProcessHeap(), 0, pc);
4410 SetWindowLongPtrW( es->hwndSelf, 0, 0 );
4411 HeapFree(GetProcessHeap(), 0, es->undo_text);
4412 HeapFree(GetProcessHeap(), 0, es);
4418 static inline LRESULT DefWindowProcT(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode)
4421 return DefWindowProcW(hwnd, msg, wParam, lParam);
4423 return DefWindowProcA(hwnd, msg, wParam, lParam);
4426 /*********************************************************************
4428 * EditWndProc_common
4430 * The messages are in the order of the actual integer values
4431 * (which can be found in include/windows.h)
4433 LRESULT EditWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, BOOL unicode )
4435 EDITSTATE *es = (EDITSTATE *)GetWindowLongPtrW( hwnd, 0 );
4438 TRACE("hwnd=%p msg=%x (%s) wparam=%lx lparam=%lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), wParam, lParam);
4440 if (!es && msg != WM_NCCREATE)
4441 return DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
4443 if (es && (msg != WM_NCDESTROY)) EDIT_LockBuffer(es);
4447 result = EDIT_EM_GetSel(es, (PUINT)wParam, (PUINT)lParam);
4451 EDIT_EM_SetSel(es, wParam, lParam, FALSE);
4452 EDIT_EM_ScrollCaret(es);
4458 CopyRect((LPRECT)lParam, &es->format_rect);
4462 if ((es->style & ES_MULTILINE) && lParam) {
4463 EDIT_SetRectNP(es, (LPRECT)lParam);
4464 EDIT_UpdateText(es, NULL, TRUE);
4469 if ((es->style & ES_MULTILINE) && lParam)
4470 EDIT_SetRectNP(es, (LPRECT)lParam);
4474 result = EDIT_EM_Scroll(es, (INT)wParam);
4478 result = (LRESULT)EDIT_EM_LineScroll(es, (INT)wParam, (INT)lParam);
4481 case EM_SCROLLCARET:
4482 EDIT_EM_ScrollCaret(es);
4487 result = ((es->flags & EF_MODIFIED) != 0);
4492 es->flags |= EF_MODIFIED;
4494 es->flags &= ~(EF_MODIFIED | EF_UPDATE); /* reset pending updates */
4497 case EM_GETLINECOUNT:
4498 result = (es->style & ES_MULTILINE) ? es->line_count : 1;
4502 result = (LRESULT)EDIT_EM_LineIndex(es, (INT)wParam);
4506 EDIT_EM_SetHandle(es, (HLOCAL)wParam);
4510 result = (LRESULT)EDIT_EM_GetHandle(es);
4514 result = EDIT_EM_GetThumb(es);
4517 /* these messages missing from specs */
4522 FIXME("undocumented message 0x%x, please report\n", msg);
4523 result = DefWindowProcW(hwnd, msg, wParam, lParam);
4527 result = (LRESULT)EDIT_EM_LineLength(es, (INT)wParam);
4535 textW = (LPWSTR)lParam;
4538 LPSTR textA = (LPSTR)lParam;
4539 INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);
4540 if((textW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4541 MultiByteToWideChar(CP_ACP, 0, textA, -1, textW, countW);
4544 EDIT_EM_ReplaceSel(es, (BOOL)wParam, textW, TRUE, TRUE);
4548 HeapFree(GetProcessHeap(), 0, textW);
4553 result = (LRESULT)EDIT_EM_GetLine(es, (INT)wParam, (LPWSTR)lParam, unicode);
4556 case EM_SETLIMITTEXT:
4557 EDIT_EM_SetLimitText(es, wParam);
4561 result = (LRESULT)EDIT_EM_CanUndo(es);
4566 result = (LRESULT)EDIT_EM_Undo(es);
4570 result = (LRESULT)EDIT_EM_FmtLines(es, (BOOL)wParam);
4573 case EM_LINEFROMCHAR:
4574 result = (LRESULT)EDIT_EM_LineFromChar(es, (INT)wParam);
4577 case EM_SETTABSTOPS:
4578 result = (LRESULT)EDIT_EM_SetTabStops(es, (INT)wParam, (LPINT)lParam);
4581 case EM_SETPASSWORDCHAR:
4586 charW = (WCHAR)wParam;
4589 CHAR charA = wParam;
4590 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4593 EDIT_EM_SetPasswordChar(es, charW);
4597 case EM_EMPTYUNDOBUFFER:
4598 EDIT_EM_EmptyUndoBuffer(es);
4601 case EM_GETFIRSTVISIBLELINE:
4602 result = (es->style & ES_MULTILINE) ? es->y_offset : es->x_offset;
4605 case EM_SETREADONLY:
4607 DWORD old_style = es->style;
4610 SetWindowLongW( hwnd, GWL_STYLE,
4611 GetWindowLongW( hwnd, GWL_STYLE ) | ES_READONLY );
4612 es->style |= ES_READONLY;
4614 SetWindowLongW( hwnd, GWL_STYLE,
4615 GetWindowLongW( hwnd, GWL_STYLE ) & ~ES_READONLY );
4616 es->style &= ~ES_READONLY;
4619 if (old_style ^ es->style)
4620 InvalidateRect(es->hwndSelf, NULL, TRUE);
4626 case EM_SETWORDBREAKPROC:
4627 EDIT_EM_SetWordBreakProc(es, (void *)lParam);
4630 case EM_GETWORDBREAKPROC:
4631 result = (LRESULT)es->word_break_proc;
4634 case EM_GETPASSWORDCHAR:
4637 result = es->password_char;
4640 WCHAR charW = es->password_char;
4642 WideCharToMultiByte(CP_ACP, 0, &charW, 1, &charA, 1, NULL, NULL);
4649 EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE);
4653 result = MAKELONG(es->left_margin, es->right_margin);
4656 case EM_GETLIMITTEXT:
4657 result = es->buffer_limit;
4660 case EM_POSFROMCHAR:
4661 if ((INT)wParam >= get_text_length(es)) result = -1;
4662 else result = EDIT_EM_PosFromChar(es, (INT)wParam, FALSE);
4665 case EM_CHARFROMPOS:
4666 result = EDIT_EM_CharFromPos(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4669 /* End of the EM_ messages which were in numerical order; what order
4670 * are these in? vaguely alphabetical?
4674 result = EDIT_WM_NCCreate(hwnd, (LPCREATESTRUCTW)lParam, unicode);
4678 result = EDIT_WM_NCDestroy(es);
4683 result = DLGC_HASSETSEL | DLGC_WANTCHARS | DLGC_WANTARROWS;
4685 if (es->style & ES_MULTILINE)
4686 result |= DLGC_WANTALLKEYS;
4690 es->flags|=EF_DIALOGMODE;
4692 if (((LPMSG)lParam)->message == WM_KEYDOWN)
4694 int vk = (int)((LPMSG)lParam)->wParam;
4696 if (es->hwndListBox)
4698 if (vk == VK_RETURN || vk == VK_ESCAPE)
4699 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
4700 result |= DLGC_WANTMESSAGE;
4712 strng[0] = wParam >> 8;
4713 strng[1] = wParam & 0xff;
4714 if (strng[0]) MultiByteToWideChar(CP_ACP, 0, strng, 2, &charW, 1);
4715 else MultiByteToWideChar(CP_ACP, 0, &strng[1], 1, &charW, 1);
4716 result = EDIT_WM_Char(es, charW);
4728 CHAR charA = wParam;
4729 MultiByteToWideChar(CP_ACP, 0, &charA, 1, &charW, 1);
4732 if (es->hwndListBox)
4734 if (charW == VK_RETURN || charW == VK_ESCAPE)
4736 if (SendMessageW(GetParent(hwnd), CB_GETDROPPEDSTATE, 0, 0))
4737 SendMessageW(GetParent(hwnd), WM_KEYDOWN, charW, 0);
4741 result = EDIT_WM_Char(es, charW);
4748 if (wParam == UNICODE_NOCHAR) return TRUE;
4749 if (wParam <= 0x000fffff)
4751 if(wParam > 0xffff) /* convert to surrogates */
4754 EDIT_WM_Char(es, (wParam >> 10) + 0xd800);
4755 EDIT_WM_Char(es, (wParam & 0x03ff) + 0xdc00);
4757 else EDIT_WM_Char(es, wParam);
4768 EDIT_WM_Command(es, HIWORD(wParam), LOWORD(wParam), (HWND)lParam);
4771 case WM_CONTEXTMENU:
4772 EDIT_WM_ContextMenu(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4781 result = EDIT_WM_Create(es, ((LPCREATESTRUCTW)lParam)->lpszName);
4784 LPCSTR nameA = ((LPCREATESTRUCTA)lParam)->lpszName;
4785 LPWSTR nameW = NULL;
4788 INT countW = MultiByteToWideChar(CP_ACP, 0, nameA, -1, NULL, 0);
4789 if((nameW = HeapAlloc(GetProcessHeap(), 0, countW * sizeof(WCHAR))))
4790 MultiByteToWideChar(CP_ACP, 0, nameA, -1, nameW, countW);
4792 result = EDIT_WM_Create(es, nameW);
4793 HeapFree(GetProcessHeap(), 0, nameW);
4802 es->bEnableState = (BOOL) wParam;
4803 EDIT_UpdateText(es, NULL, TRUE);
4807 /* we do the proper erase in EDIT_WM_Paint */
4812 result = (LRESULT)es->font;
4816 result = (LRESULT)EDIT_WM_GetText(es, (INT)wParam, (LPWSTR)lParam, unicode);
4819 case WM_GETTEXTLENGTH:
4820 if (unicode) result = get_text_length(es);
4821 else result = WideCharToMultiByte( CP_ACP, 0, es->text, get_text_length(es),
4822 NULL, 0, NULL, NULL );
4826 result = EDIT_WM_HScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
4830 result = EDIT_WM_KeyDown(es, (INT)wParam);
4834 result = EDIT_WM_KillFocus(es);
4837 case WM_LBUTTONDBLCLK:
4838 result = EDIT_WM_LButtonDblClk(es);
4841 case WM_LBUTTONDOWN:
4842 result = EDIT_WM_LButtonDown(es, wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
4846 result = EDIT_WM_LButtonUp(es);
4849 case WM_MBUTTONDOWN:
4850 result = EDIT_WM_MButtonDown(es);
4854 result = EDIT_WM_MouseMove(es, (short)LOWORD(lParam), (short)HIWORD(lParam));
4857 case WM_PRINTCLIENT:
4859 EDIT_WM_Paint(es, (HDC)wParam);
4867 EDIT_WM_SetFocus(es);
4871 EDIT_WM_SetFont(es, (HFONT)wParam, LOWORD(lParam) != 0);
4875 /* FIXME: actually set an internal flag and behave accordingly */
4879 EDIT_WM_SetText(es, (LPCWSTR)lParam, unicode);
4884 EDIT_WM_Size(es, (UINT)wParam, LOWORD(lParam), HIWORD(lParam));
4887 case WM_STYLECHANGED:
4888 result = EDIT_WM_StyleChanged(es, wParam, (const STYLESTRUCT *)lParam);
4891 case WM_STYLECHANGING:
4892 result = 0; /* See EDIT_WM_StyleChanged */
4896 result = EDIT_WM_SysKeyDown(es, (INT)wParam, (DWORD)lParam);
4904 result = EDIT_WM_VScroll(es, LOWORD(wParam), (short)HIWORD(wParam));
4909 int gcWheelDelta = 0;
4910 UINT pulScrollLines = 3;
4911 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
4913 if (wParam & (MK_SHIFT | MK_CONTROL)) {
4914 result = DefWindowProcW(hwnd, msg, wParam, lParam);
4917 gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
4918 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4920 int cLineScroll= (int) min((UINT) es->line_count, pulScrollLines);
4921 cLineScroll *= (gcWheelDelta / WHEEL_DELTA);
4922 result = EDIT_EM_LineScroll(es, 0, cLineScroll);
4928 /* IME messages to make the edit control IME aware */
4929 case WM_IME_SETCONTEXT:
4932 case WM_IME_STARTCOMPOSITION:
4933 es->composition_start = es->selection_end;
4934 es->composition_len = 0;
4937 case WM_IME_COMPOSITION:
4938 EDIT_ImeComposition(hwnd, lParam, es);
4941 case WM_IME_ENDCOMPOSITION:
4942 if (es->composition_len > 0)
4944 static const WCHAR empty_stringW[] = {0};
4945 EDIT_EM_ReplaceSel(es, TRUE, empty_stringW, TRUE, TRUE);
4946 es->selection_end = es->selection_start;
4947 es->composition_len= 0;
4951 case WM_IME_COMPOSITIONFULL:
4957 case WM_IME_CONTROL:
4961 result = DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
4965 if (IsWindow(hwnd) && es) EDIT_UnlockBuffer(es, FALSE);
4967 TRACE("hwnd=%p msg=%x (%s) -- 0x%08lx\n", hwnd, msg, SPY_GetMsgName(msg, hwnd), result);
4973 /*********************************************************************
4974 * edit class descriptor
4976 static const WCHAR editW[] = {'E','d','i','t',0};
4977 const struct builtin_class_descr EDIT_builtin_class =
4980 CS_DBLCLKS | CS_PARENTDC, /* style */
4981 WINPROC_EDIT, /* proc */
4983 sizeof(EDITSTATE *) + sizeof(HLOCAL16), /* extra */
4985 sizeof(EDITSTATE *), /* extra */
4987 IDC_IBEAM, /* cursor */