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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: textctrl.cpp
3 // Purpose: wxTextCtrl
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 17/09/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
21 #pragma implementation "textctrl.h"
22 #endif
23
24 // For compilers that support precompilation, includes "wx.h".
25 #include "wx/wxprec.h"
26
27 #ifdef __VMS
28 #define XtParent XTPARENT
29 #endif
30
31 #include "wx/defs.h"
32
33 #include <sys/types.h>
34 #include <sys/stat.h>
35 #include <ctype.h>
36
37 #include "wx/textctrl.h"
38 #include "wx/settings.h"
39 #include "wx/filefn.h"
40 #include "wx/utils.h"
41
42 #ifdef __VMS__
43 #pragma message disable nosimpint
44 #endif
45 #include <Xm/Text.h>
46 #ifdef __VMS__
47 #pragma message enable nosimpint
48 #endif
49
50 #include "wx/motif/private.h"
51
52 // ----------------------------------------------------------------------------
53 // private functions
54 // ----------------------------------------------------------------------------
55
56 // helper: inserts the new text in the value of the text ctrl and returns the
57 // result in place
58 static void MergeChangesIntoString(wxString& value,
59 XmTextVerifyCallbackStruct *textStruct);
60
61 // callbacks
62 static void wxTextWindowChangedProc(Widget w, XtPointer clientData, XtPointer ptr);
63 static void wxTextWindowModifyProc(Widget w, XtPointer clientData, XmTextVerifyCallbackStruct *cbs);
64 static void wxTextWindowGainFocusProc(Widget w, XtPointer clientData, XmAnyCallbackStruct *cbs);
65 static void wxTextWindowLoseFocusProc(Widget w, XtPointer clientData, XmAnyCallbackStruct *cbs);
66 static void wxTextWindowActivateProc(Widget w, XtPointer clientData, XmAnyCallbackStruct *ptr);
67
68 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
69
70 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
71 EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
72 EVT_CHAR(wxTextCtrl::OnChar)
73
74 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
75 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
76 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
77 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
78 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
79
80 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
81 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
82 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
83 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
84 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
85
86 END_EVENT_TABLE()
87
88 // ============================================================================
89 // implementation
90 // ============================================================================
91
92 // ----------------------------------------------------------------------------
93 // wxTextCtrl
94 // ----------------------------------------------------------------------------
95
96 // Text item
97 wxTextCtrl::wxTextCtrl()
98 {
99 m_tempCallbackStruct = (void*) NULL;
100 m_modified = false;
101 m_processedDefault = false;
102 }
103
104 bool wxTextCtrl::Create(wxWindow *parent,
105 wxWindowID id,
106 const wxString& value,
107 const wxPoint& pos,
108 const wxSize& size,
109 long style,
110 const wxValidator& validator,
111 const wxString& name)
112 {
113 if( !CreateControl( parent, id, pos, size, style, validator, name ) )
114 return false;
115
116 m_tempCallbackStruct = (void*) NULL;
117 m_modified = false;
118 m_processedDefault = false;
119
120 m_backgroundColour = *wxWHITE;
121
122 Widget parentWidget = (Widget) parent->GetClientWidget();
123
124 Bool wantHorizScroll = (m_windowStyle & wxHSCROLL) != 0 ? True : False;
125 // If we don't have horizontal scrollbars, we want word wrap.
126 // OpenMotif 2.1 crashes if wantWordWrap is True in Japanese
127 // locale (and probably other multibyte locales). The check might be
128 // more precise
129 #if wxCHECK_LESSTIF() || wxCHECK_MOTIF_VERSION( 2, 2 )
130 Bool wantWordWrap = wantHorizScroll == True ? False : True;
131 #else
132 Bool wantWordWrap = False;
133 #endif
134
135 if (m_windowStyle & wxTE_MULTILINE)
136 {
137 Arg args[8];
138 int count = 0;
139 XtSetArg (args[count], XmNscrollHorizontal, wantHorizScroll); ++count;
140 XtSetArg (args[count], (String) wxFont::GetFontTag(),
141 m_font.GetFontType( XtDisplay(parentWidget) ) ); ++count;
142 XtSetArg (args[count], XmNwordWrap, wantWordWrap); ++count;
143 XtSetArg (args[count], XmNvalue, value.c_str()); ++count;
144 XtSetArg (args[count], XmNeditable,
145 style & wxTE_READONLY ? False : True); ++count;
146 XtSetArg (args[count], XmNeditMode, XmMULTI_LINE_EDIT ); ++count;
147
148 m_mainWidget =
149 (WXWidget) XmCreateScrolledText(parentWidget,
150 wxConstCast(name.c_str(), char),
151 args, count);
152
153 XtManageChild ((Widget) m_mainWidget);
154 }
155 else
156 {
157 m_mainWidget = (WXWidget)XtVaCreateManagedWidget
158 (
159 wxConstCast(name.c_str(), char),
160 xmTextWidgetClass,
161 parentWidget,
162 wxFont::GetFontTag(), m_font.GetFontType( XtDisplay(parentWidget) ),
163 XmNvalue, value.c_str(),
164 XmNeditable, (style & wxTE_READONLY) ?
165 False : True,
166 NULL
167 );
168
169 #if 0
170 // TODO: Is this relevant? What does it do?
171 int noCols = 2;
172 if (!value.IsNull() && (value.Length() > (unsigned int) noCols))
173 noCols = value.Length();
174 XtVaSetValues((Widget) m_mainWidget,
175 XmNcolumns, noCols,
176 NULL);
177 #endif
178 }
179
180 // remove border if asked for
181 if ( style & wxNO_BORDER )
182 {
183 XtVaSetValues((Widget)m_mainWidget,
184 XmNshadowThickness, 0,
185 NULL);
186 }
187
188 // install callbacks
189 XtAddCallback((Widget) m_mainWidget, XmNvalueChangedCallback, (XtCallbackProc)wxTextWindowChangedProc, (XtPointer)this);
190
191 XtAddCallback((Widget) m_mainWidget, XmNmodifyVerifyCallback, (XtCallbackProc)wxTextWindowModifyProc, (XtPointer)this);
192
193 XtAddCallback((Widget) m_mainWidget, XmNactivateCallback, (XtCallbackProc)wxTextWindowActivateProc, (XtPointer)this);
194
195 XtAddCallback((Widget) m_mainWidget, XmNfocusCallback, (XtCallbackProc)wxTextWindowGainFocusProc, (XtPointer)this);
196
197 XtAddCallback((Widget) m_mainWidget, XmNlosingFocusCallback, (XtCallbackProc)wxTextWindowLoseFocusProc, (XtPointer)this);
198
199 AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
200 pos.x, pos.y, size.x, size.y);
201
202 ChangeBackgroundColour();
203
204 return true;
205 }
206
207 WXWidget wxTextCtrl::GetTopWidget() const
208 {
209 return IsMultiLine() ? (WXWidget)XtParent((Widget)m_mainWidget)
210 : m_mainWidget;
211 }
212
213 wxString wxTextCtrl::GetValue() const
214 {
215 wxString str; // result
216
217 if (m_windowStyle & wxTE_PASSWORD)
218 {
219 // the value is stored always in m_value because it can't be retrieved
220 // from the text control
221 str = m_value;
222 }
223 else
224 {
225 // just get the string from Motif
226 char *s = XmTextGetString ((Widget) m_mainWidget);
227 if ( s )
228 {
229 str = s;
230 XtFree (s);
231 }
232 //else: return empty string
233
234 if ( m_tempCallbackStruct )
235 {
236 // the string in the control isn't yet updated, can't use it as is
237 MergeChangesIntoString(str, (XmTextVerifyCallbackStruct *)
238 m_tempCallbackStruct);
239 }
240 }
241
242 return str;
243 }
244
245 void wxTextCtrl::SetValue(const wxString& text)
246 {
247 m_inSetValue = true;
248
249 XmTextSetString ((Widget) m_mainWidget, wxConstCast(text.c_str(), char));
250 XtVaSetValues ((Widget) m_mainWidget,
251 XmNcursorPosition, text.length(),
252 NULL);
253
254 SetInsertionPoint(text.length());
255 XmTextShowPosition ((Widget) m_mainWidget, text.length());
256 m_modified = TRUE;
257
258 m_inSetValue = false;
259 }
260
261 // Clipboard operations
262 void wxTextCtrl::Copy()
263 {
264 XmTextCopy((Widget) m_mainWidget, CurrentTime);
265 }
266
267 void wxTextCtrl::Cut()
268 {
269 XmTextCut((Widget) m_mainWidget, CurrentTime);
270 }
271
272 void wxTextCtrl::Paste()
273 {
274 XmTextPaste((Widget) m_mainWidget);
275 }
276
277 bool wxTextCtrl::CanCopy() const
278 {
279 // Can copy if there's a selection
280 long from, to;
281 GetSelection(& from, & to);
282 return (from != to) ;
283 }
284
285 bool wxTextCtrl::CanCut() const
286 {
287 // Can cut if there's a selection
288 long from, to;
289 GetSelection(& from, & to);
290 return (from != to) && (IsEditable());
291 }
292
293 bool wxTextCtrl::CanPaste() const
294 {
295 return IsEditable() ;
296 }
297
298 // Undo/redo
299 void wxTextCtrl::Undo()
300 {
301 // Not possible in Motif
302 }
303
304 void wxTextCtrl::Redo()
305 {
306 // Not possible in Motif
307 }
308
309 bool wxTextCtrl::CanUndo() const
310 {
311 // No Undo in Motif
312 return false;
313 }
314
315 bool wxTextCtrl::CanRedo() const
316 {
317 // No Redo in Motif
318 return false;
319 }
320
321 // If the return values from and to are the same, there is no
322 // selection.
323 void wxTextCtrl::GetSelection(long* from, long* to) const
324 {
325 XmTextPosition left, right;
326
327 XmTextGetSelectionPosition((Widget) m_mainWidget, & left, & right);
328
329 *from = (long) left;
330 *to = (long) right;
331 }
332
333 bool wxTextCtrl::IsEditable() const
334 {
335 return (XmTextGetEditable((Widget) m_mainWidget) != 0);
336 }
337
338 void wxTextCtrl::SetEditable(bool editable)
339 {
340 XmTextSetEditable((Widget) m_mainWidget, (Boolean) editable);
341 }
342
343 void wxTextCtrl::SetInsertionPoint(long pos)
344 {
345 XmTextSetInsertionPosition ((Widget) m_mainWidget, (XmTextPosition) pos);
346 }
347
348 void wxTextCtrl::SetInsertionPointEnd()
349 {
350 wxTextPos pos = GetLastPosition();
351 SetInsertionPoint(pos);
352 }
353
354 long wxTextCtrl::GetInsertionPoint() const
355 {
356 return (long) XmTextGetInsertionPosition ((Widget) m_mainWidget);
357 }
358
359 wxTextPos wxTextCtrl::GetLastPosition() const
360 {
361 return (long) XmTextGetLastPosition ((Widget) m_mainWidget);
362 }
363
364 void wxTextCtrl::Replace(long from, long to, const wxString& value)
365 {
366 XmTextReplace ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
367 wxConstCast(value.c_str(), char));
368 }
369
370 void wxTextCtrl::Remove(long from, long to)
371 {
372 XmTextSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
373 (Time) 0);
374 XmTextRemove ((Widget) m_mainWidget);
375 }
376
377 void wxTextCtrl::SetSelection(long from, long to)
378 {
379 if( to == -1 )
380 to = GetLastPosition();
381
382 XmTextSetSelection ((Widget) m_mainWidget, (XmTextPosition) from, (XmTextPosition) to,
383 (Time) 0);
384 }
385
386 void wxTextCtrl::WriteText(const wxString& text)
387 {
388 long textPosition = GetInsertionPoint() + text.length();
389 XmTextInsert ((Widget) m_mainWidget, GetInsertionPoint(),
390 wxConstCast(text.c_str(), char));
391 XtVaSetValues ((Widget) m_mainWidget, XmNcursorPosition, textPosition, NULL);
392 SetInsertionPoint(textPosition);
393 XmTextShowPosition ((Widget) m_mainWidget, textPosition);
394 m_modified = true;
395 }
396
397 void wxTextCtrl::AppendText(const wxString& text)
398 {
399 wxTextPos textPosition = GetLastPosition() + text.length();
400 XmTextInsert ((Widget) m_mainWidget, GetLastPosition(),
401 wxConstCast(text.c_str(), char));
402 XtVaSetValues ((Widget) m_mainWidget, XmNcursorPosition, textPosition, NULL);
403 SetInsertionPoint(textPosition);
404 XmTextShowPosition ((Widget) m_mainWidget, textPosition);
405 m_modified = true;
406 }
407
408 void wxTextCtrl::Clear()
409 {
410 XmTextSetString ((Widget) m_mainWidget, "");
411 m_modified = false;
412 }
413
414 bool wxTextCtrl::IsModified() const
415 {
416 return m_modified;
417 }
418
419 // Makes modified or unmodified
420 void wxTextCtrl::MarkDirty()
421 {
422 m_modified = true;
423 }
424
425 void wxTextCtrl::DiscardEdits()
426 {
427 m_modified = false;
428 }
429
430 int wxTextCtrl::GetNumberOfLines() const
431 {
432 // HIDEOUSLY inefficient, but we have no choice.
433 char *s = XmTextGetString ((Widget) m_mainWidget);
434 if (s)
435 {
436 long i = 0;
437 int currentLine = 0;
438 bool finished = false;
439 while (!finished)
440 {
441 int ch = s[i];
442 if (ch == '\n')
443 {
444 currentLine++;
445 i++;
446 }
447 else if (ch == 0)
448 {
449 finished = true;
450 }
451 else
452 i++;
453 }
454
455 XtFree (s);
456 return currentLine;
457 }
458 return 0;
459 }
460
461 long wxTextCtrl::XYToPosition(long x, long y) const
462 {
463 /* It seems, that there is a bug in some versions of the Motif library,
464 so the original wxWin-Code doesn't work. */
465 /*
466 Widget textWidget = (Widget) handle;
467 return (long) XmTextXYToPos (textWidget, (Position) x, (Position) y);
468 */
469 /* Now a little workaround: */
470 long r=0;
471 for (int i=0; i<y; i++) r+=(GetLineLength(i)+1);
472 return r+x;
473 }
474
475 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
476 {
477 Position xx, yy;
478 XmTextPosToXY((Widget) m_mainWidget, pos, &xx, &yy);
479 if ( x )
480 *x = xx;
481 if ( y )
482 *y = yy;
483
484 return true;
485 }
486
487 void wxTextCtrl::ShowPosition(long pos)
488 {
489 XmTextShowPosition ((Widget) m_mainWidget, (XmTextPosition) pos);
490 }
491
492 int wxTextCtrl::GetLineLength(long lineNo) const
493 {
494 wxString str = GetLineText (lineNo);
495 return (int) str.Length();
496 }
497
498 wxString wxTextCtrl::GetLineText(long lineNo) const
499 {
500 // HIDEOUSLY inefficient, but we have no choice.
501 char *s = XmTextGetString ((Widget) m_mainWidget);
502
503 if (s)
504 {
505 wxString buf("");
506 long i;
507 int currentLine = 0;
508 for (i = 0; currentLine != lineNo && s[i]; i++ )
509 if (s[i] == '\n')
510 currentLine++;
511 // Now get the text
512 int j;
513 for (j = 0; s[i] && s[i] != '\n'; i++, j++ )
514 buf += s[i];
515
516 XtFree(s);
517 return buf;
518 }
519 else
520 return wxEmptyString;
521 }
522
523 /*
524 * Text item
525 */
526
527 void wxTextCtrl::Command(wxCommandEvent & event)
528 {
529 SetValue (event.GetString());
530 ProcessCommand (event);
531 }
532
533 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
534 {
535 // By default, load the first file into the text window.
536 if (event.GetNumberOfFiles() > 0)
537 {
538 LoadFile(event.GetFiles()[0]);
539 }
540 }
541
542 void wxTextCtrl::OnChar(wxKeyEvent& event)
543 {
544 // Indicates that we should generate a normal command, because
545 // we're letting default behaviour happen (otherwise it's vetoed
546 // by virtue of overriding OnChar)
547 m_processedDefault = true;
548
549 if (m_tempCallbackStruct)
550 {
551 XmTextVerifyCallbackStruct *textStruct =
552 (XmTextVerifyCallbackStruct *) m_tempCallbackStruct;
553 textStruct->doit = True;
554 if (isascii(event.m_keyCode) && (textStruct->text->length == 1))
555 {
556 textStruct->text->ptr[0] = ((event.m_keyCode == WXK_RETURN) ? 10 : event.m_keyCode);
557 }
558 }
559 }
560
561 void wxTextCtrl::ChangeFont(bool keepOriginalSize)
562 {
563 wxWindow::ChangeFont(keepOriginalSize);
564 }
565
566 void wxTextCtrl::ChangeBackgroundColour()
567 {
568 wxWindow::ChangeBackgroundColour();
569
570 /* TODO: should scrollbars be affected? Should probably have separate
571 * function to change them (by default, taken from wxSystemSettings)
572 */
573 if (m_windowStyle & wxTE_MULTILINE)
574 {
575 Widget parent = XtParent ((Widget) m_mainWidget);
576 Widget hsb, vsb;
577
578 XtVaGetValues (parent,
579 XmNhorizontalScrollBar, &hsb,
580 XmNverticalScrollBar, &vsb,
581 NULL);
582 wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
583 if (hsb)
584 wxDoChangeBackgroundColour((WXWidget) hsb, backgroundColour, true);
585 if (vsb)
586 wxDoChangeBackgroundColour((WXWidget) vsb, backgroundColour, true);
587
588 // MBN: why change parent background?
589 // DoChangeBackgroundColour((WXWidget) parent, m_backgroundColour, true);
590 }
591 }
592
593 void wxTextCtrl::ChangeForegroundColour()
594 {
595 wxWindow::ChangeForegroundColour();
596
597 if (m_windowStyle & wxTE_MULTILINE)
598 {
599 Widget parent = XtParent ((Widget) m_mainWidget);
600 Widget hsb, vsb;
601
602 XtVaGetValues (parent,
603 XmNhorizontalScrollBar, &hsb,
604 XmNverticalScrollBar, &vsb,
605 NULL);
606
607 /* TODO: should scrollbars be affected? Should probably have separate
608 * function to change them (by default, taken from wxSystemSettings)
609 if (hsb)
610 DoChangeForegroundColour((WXWidget) hsb, m_foregroundColour);
611 if (vsb)
612 DoChangeForegroundColour((WXWidget) vsb, m_foregroundColour);
613 */
614 wxDoChangeForegroundColour((WXWidget) parent, m_foregroundColour);
615 }
616 }
617
618 void wxTextCtrl::DoSendEvents(void *wxcbs, long keycode)
619 {
620 // we're in process of updating the text control
621 m_tempCallbackStruct = wxcbs;
622
623 XmTextVerifyCallbackStruct *cbs = (XmTextVerifyCallbackStruct *)wxcbs;
624
625 wxKeyEvent event (wxEVT_CHAR);
626 event.SetId(GetId());
627 event.m_keyCode = keycode;
628 event.SetEventObject(this);
629
630 // Only if wxTextCtrl::OnChar is called will this be set to True (and
631 // the character passed through)
632 cbs->doit = False;
633
634 GetEventHandler()->ProcessEvent(event);
635
636 if ( !InSetValue() && m_processedDefault )
637 {
638 // Can generate a command
639 wxCommandEvent commandEvent(wxEVT_COMMAND_TEXT_UPDATED, GetId());
640 commandEvent.SetEventObject(this);
641 ProcessCommand(commandEvent);
642 }
643
644 // do it after the (user) event handlers processed the events because
645 // otherwise GetValue() would return incorrect (not yet updated value)
646 m_tempCallbackStruct = NULL;
647 }
648
649 wxSize wxDoGetSingleTextCtrlBestSize( Widget textWidget,
650 const wxWindow* window )
651 {
652 Dimension xmargin, ymargin, highlight, shadow;
653 char* value;
654
655 XtVaGetValues( textWidget,
656 XmNmarginWidth, &xmargin,
657 XmNmarginHeight, &ymargin,
658 XmNvalue, &value,
659 XmNhighlightThickness, &highlight,
660 XmNshadowThickness, &shadow,
661 NULL );
662
663 if( !value )
664 value = "|";
665
666 int x, y;
667 window->GetTextExtent( value, &x, &y );
668
669 if( x < 100 ) x = 100;
670
671 return wxSize( x + 2 * xmargin + 2 * highlight + 2 * shadow,
672 // MBN: +2 necessary: Lesstif bug or mine?
673 y + 2 * ymargin + 2 * highlight + 2 * shadow + 2 );
674 }
675
676 wxSize wxTextCtrl::DoGetBestSize() const
677 {
678 if( IsSingleLine() )
679 {
680 wxSize best = wxControl::DoGetBestSize();
681
682 if( best.x < 110 ) best.x = 110;
683
684 return best;
685 }
686 else
687 return wxWindow::DoGetBestSize();
688 }
689
690 // ----------------------------------------------------------------------------
691 // helpers and Motif callbacks
692 // ----------------------------------------------------------------------------
693
694 static void MergeChangesIntoString(wxString& value,
695 XmTextVerifyCallbackStruct *cbs)
696 {
697 /* _sm_
698 * At least on my system (SunOS 4.1.3 + Motif 1.2), you need to think of
699 * every event as a replace event. cbs->text->ptr gives the replacement
700 * text, cbs->startPos gives the index of the first char affected by the
701 * replace, and cbs->endPos gives the index one more than the last char
702 * affected by the replace (startPos == endPos implies an empty range).
703 * Hence, a deletion is represented by replacing all input text with a
704 * blank string ("", *not* NULL!). A simple insertion that does not
705 * overwrite any text has startPos == endPos.
706 */
707
708 if ( !value )
709 {
710 // easy case: the ol value was empty
711 value = cbs->text->ptr;
712 }
713 else
714 {
715 // merge the changes into the value
716 const char * const passwd = value;
717 int len = value.length();
718
719 len += ( cbs->text->ptr ?
720 strlen(cbs->text->ptr) :
721 0 ) + 1; // + new text (if any) + NUL
722 len -= cbs->endPos - cbs->startPos; // - text from affected region.
723
724 char * newS = new char [len];
725 char * dest = newS,
726 * insert = cbs->text->ptr;
727
728 // Copy (old) text from passwd, up to the start posn of the change.
729 int i;
730 const char * p = passwd;
731 for (i = 0; i < cbs->startPos; ++i)
732 *dest++ = *p++;
733
734 // Copy the text to be inserted).
735 if (insert)
736 while (*insert)
737 *dest++ = *insert++;
738
739 // Finally, copy into newS any remaining text from passwd[endPos] on.
740 for (p = passwd + cbs->endPos; *p; )
741 *dest++ = *p++;
742 *dest = 0;
743
744 value = newS;
745
746 delete[] newS;
747 }
748 }
749
750 static void
751 wxTextWindowChangedProc (Widget w, XtPointer clientData, XtPointer WXUNUSED(ptr))
752 {
753 if (!wxGetWindowFromTable(w))
754 // Widget has been deleted!
755 return;
756
757 wxTextCtrl *tw = (wxTextCtrl *) clientData;
758 tw->SetModified(true);
759 }
760
761 static void
762 wxTextWindowModifyProc (Widget WXUNUSED(w), XtPointer clientData, XmTextVerifyCallbackStruct *cbs)
763 {
764 wxTextCtrl *tw = (wxTextCtrl *) clientData;
765 tw->m_processedDefault = false;
766
767 // First, do some stuff if it's a password control: in this case, we need
768 // to store the string inside the class because GetValue() can't retrieve
769 // it from the text ctrl. We do *not* do it in other circumstances because
770 // it would double the amount of memory needed.
771
772 if ( tw->GetWindowStyleFlag() & wxTE_PASSWORD )
773 {
774 MergeChangesIntoString(tw->m_value, cbs);
775
776 if ( cbs->text->length > 0 )
777 {
778 int i;
779 for (i = 0; i < cbs->text->length; ++i)
780 cbs->text->ptr[i] = '*';
781 cbs->text->ptr[i] = '\0';
782 }
783 }
784
785 if(tw->InSetValue())
786 return;
787
788 // If we're already within an OnChar, return: probably a programmatic
789 // insertion.
790 if (tw->m_tempCallbackStruct)
791 return;
792
793 // Check for a backspace
794 if (cbs->startPos == (cbs->currInsert - 1))
795 {
796 tw->DoSendEvents((void *)cbs, WXK_DELETE);
797
798 return;
799 }
800
801 // Pasting operation: let it through without calling OnChar
802 if (cbs->text->length > 1)
803 return;
804
805 // Something other than text
806 if (cbs->text->ptr == NULL)
807 return;
808
809 // normal key press
810 char ch = cbs->text->ptr[0];
811 tw->DoSendEvents((void *)cbs, ch == '\n' ? '\r' : ch);
812 }
813
814 static void
815 wxTextWindowGainFocusProc (Widget w, XtPointer clientData, XmAnyCallbackStruct *WXUNUSED(cbs))
816 {
817 if (!wxGetWindowFromTable(w))
818 return;
819
820 wxTextCtrl *tw = (wxTextCtrl *) clientData;
821 wxFocusEvent event(wxEVT_SET_FOCUS, tw->GetId());
822 event.SetEventObject(tw);
823 tw->GetEventHandler()->ProcessEvent(event);
824 }
825
826 static void
827 wxTextWindowLoseFocusProc (Widget w, XtPointer clientData, XmAnyCallbackStruct *WXUNUSED(cbs))
828 {
829 if (!wxGetWindowFromTable(w))
830 return;
831
832 wxTextCtrl *tw = (wxTextCtrl *) clientData;
833 wxFocusEvent event(wxEVT_KILL_FOCUS, tw->GetId());
834 event.SetEventObject(tw);
835 tw->GetEventHandler()->ProcessEvent(event);
836 }
837
838 static void wxTextWindowActivateProc(Widget w, XtPointer clientData,
839 XmAnyCallbackStruct *WXUNUSED(ptr))
840 {
841 if (!wxGetWindowFromTable(w))
842 return;
843
844 wxTextCtrl *tw = (wxTextCtrl *) clientData;
845
846 if (tw->InSetValue())
847 return;
848
849 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER);
850 event.SetId(tw->GetId());
851 event.SetEventObject(tw);
852 tw->ProcessCommand(event);
853 }
854
855 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
856 {
857 Cut();
858 }
859
860 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
861 {
862 Copy();
863 }
864
865 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
866 {
867 Paste();
868 }
869
870 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
871 {
872 Undo();
873 }
874
875 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
876 {
877 Redo();
878 }
879
880 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
881 {
882 event.Enable( CanCut() );
883 }
884
885 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
886 {
887 event.Enable( CanCopy() );
888 }
889
890 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
891 {
892 event.Enable( CanPaste() );
893 }
894
895 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
896 {
897 event.Enable( CanUndo() );
898 }
899
900 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
901 {
902 event.Enable( CanRedo() );
903 }