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[wxWidgets.git] / src / gtk / textctrl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: textctrl.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11 #pragma implementation "textctrl.h"
12 #endif
13
14 // For compilers that support precompilation, includes "wx.h".
15 #include "wx/wxprec.h"
16
17 #include "wx/textctrl.h"
18 #include "wx/utils.h"
19 #include "wx/intl.h"
20 #include "wx/log.h"
21 #include "wx/settings.h"
22 #include "wx/panel.h"
23 #include "wx/strconv.h"
24 #include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
25
26 #include <sys/types.h>
27 #include <sys/stat.h>
28 #include <ctype.h>
29 #include <math.h> // for fabs
30
31 #include "wx/gtk/private.h"
32 #include <gdk/gdkkeysyms.h>
33
34 //-----------------------------------------------------------------------------
35 // idle system
36 //-----------------------------------------------------------------------------
37
38 extern void wxapp_install_idle_handler();
39 extern bool g_isIdle;
40
41 //-----------------------------------------------------------------------------
42 // data
43 //-----------------------------------------------------------------------------
44
45 extern bool g_blockEventsOnDrag;
46 extern wxCursor g_globalCursor;
47 extern wxWindowGTK *g_delayedFocus;
48
49 // ----------------------------------------------------------------------------
50 // helpers
51 // ----------------------------------------------------------------------------
52
53 #ifdef __WXGTK20__
54 static void wxGtkTextInsert(GtkWidget *text,
55 GtkTextBuffer *text_buffer,
56 const wxTextAttr& attr,
57 wxCharBuffer buffer)
58
59 {
60 PangoFontDescription *font_description = attr.HasFont()
61 ? attr.GetFont().GetNativeFontInfo()->description
62 : NULL;
63
64 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
65 : NULL;
66
67 GdkColor *colBg = attr.HasBackgroundColour()
68 ? attr.GetBackgroundColour().GetColor()
69 : NULL;
70
71 GtkTextTag *tag;
72 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
73 "foreground-gdk", colFg,
74 "background-gdk", colBg, NULL );
75
76 GtkTextIter iter;
77 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
78 gtk_text_buffer_get_insert (text_buffer) );
79
80 gtk_text_buffer_insert_with_tags( text_buffer, &iter, buffer, strlen(buffer), tag, NULL );
81 }
82 #else
83 static void wxGtkTextInsert(GtkWidget *text,
84 const wxTextAttr& attr,
85 const char *txt,
86 size_t len)
87 {
88 GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
89 : NULL;
90
91 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
92 : NULL;
93
94 GdkColor *colBg = attr.HasBackgroundColour()
95 ? attr.GetBackgroundColour().GetColor()
96 : NULL;
97
98 gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
99 }
100 #endif // GTK 1.x
101
102 // ----------------------------------------------------------------------------
103 // "insert_text" for GtkEntry
104 // ----------------------------------------------------------------------------
105
106 static void
107 gtk_insert_text_callback(GtkEditable *editable,
108 const gchar *new_text,
109 gint new_text_length,
110 gint *position,
111 wxTextCtrl *win)
112 {
113 if (g_isIdle)
114 wxapp_install_idle_handler();
115
116 // we should only be called if we have a max len limit at all
117 GtkEntry *entry = GTK_ENTRY (editable);
118
119 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
120
121 // check that we don't overflow the max length limit
122 //
123 // FIXME: this doesn't work when we paste a string which is going to be
124 // truncated
125 if ( entry->text_length == entry->text_max_length )
126 {
127 // we don't need to run the base class version at all
128 gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
129
130 // remember that the next changed signal is to be ignored to avoid
131 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
132 win->IgnoreNextTextUpdate();
133
134 // and generate the correct one ourselves
135 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
136 event.SetEventObject(win);
137 event.SetString(win->GetValue());
138 win->GetEventHandler()->ProcessEvent( event );
139 }
140 }
141
142 //-----------------------------------------------------------------------------
143 // "changed"
144 //-----------------------------------------------------------------------------
145
146 static void
147 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
148 {
149 if ( win->IgnoreTextUpdate() )
150 return;
151
152 if (!win->m_hasVMT) return;
153
154 if (g_isIdle)
155 wxapp_install_idle_handler();
156
157 win->SetModified();
158 win->UpdateFontIfNeeded();
159
160 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
161 event.SetEventObject( win );
162 event.SetString( win->GetValue() );
163 win->GetEventHandler()->ProcessEvent( event );
164 }
165
166 //-----------------------------------------------------------------------------
167 // "changed" from vertical scrollbar
168 //-----------------------------------------------------------------------------
169
170 #ifndef __WXGTK20__
171 static void
172 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
173 {
174 if (!win->m_hasVMT) return;
175
176 if (g_isIdle)
177 wxapp_install_idle_handler();
178
179 win->CalculateScrollbar();
180 }
181 #endif
182
183 // ----------------------------------------------------------------------------
184 // redraw callback for multiline text
185 // ----------------------------------------------------------------------------
186
187 #ifndef __WXGTK20__
188
189 // redrawing a GtkText from inside a wxYield() call results in crashes (the
190 // text sample shows it in its "Add lines" command which shows wxProgressDialog
191 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
192 // don't do anything if we're inside wxYield()
193
194 extern bool wxIsInsideYield;
195
196 extern "C" {
197 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
198 }
199
200 static GtkDrawCallback gs_gtk_text_draw = NULL;
201
202 extern "C"
203 void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
204 {
205 if ( !wxIsInsideYield )
206 {
207 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
208 _T("infinite recursion in wxgtk_text_draw aborted") );
209
210 gs_gtk_text_draw(widget, rect);
211 }
212 }
213
214 #endif // __WXGTK20__
215
216 //-----------------------------------------------------------------------------
217 // wxTextCtrl
218 //-----------------------------------------------------------------------------
219
220 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
221
222 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
223 EVT_CHAR(wxTextCtrl::OnChar)
224
225 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
226 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
227 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
228 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
229 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
230
231 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
232 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
233 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
234 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
235 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
236 END_EVENT_TABLE()
237
238 void wxTextCtrl::Init()
239 {
240 m_ignoreNextUpdate =
241 m_modified = FALSE;
242 m_updateFont = FALSE;
243 m_text =
244 m_vScrollbar = (GtkWidget *)NULL;
245 }
246
247 wxTextCtrl::wxTextCtrl( wxWindow *parent,
248 wxWindowID id,
249 const wxString &value,
250 const wxPoint &pos,
251 const wxSize &size,
252 long style,
253 const wxValidator& validator,
254 const wxString &name )
255 {
256 Init();
257
258 Create( parent, id, value, pos, size, style, validator, name );
259 }
260
261 bool wxTextCtrl::Create( wxWindow *parent,
262 wxWindowID id,
263 const wxString &value,
264 const wxPoint &pos,
265 const wxSize &size,
266 long style,
267 const wxValidator& validator,
268 const wxString &name )
269 {
270 m_needParent = TRUE;
271 m_acceptsFocus = TRUE;
272
273 if (!PreCreation( parent, pos, size ) ||
274 !CreateBase( parent, id, pos, size, style, validator, name ))
275 {
276 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
277 return FALSE;
278 }
279
280
281 m_vScrollbarVisible = FALSE;
282
283 bool multi_line = (style & wxTE_MULTILINE) != 0;
284
285 #ifdef __WXGTK20__
286 GtkTextBuffer *buffer = NULL;
287 #endif
288
289 if (multi_line)
290 {
291 #ifdef __WXGTK20__
292 // Create view
293 m_text = gtk_text_view_new();
294
295 buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
296
297 // create scrolled window
298 m_widget = gtk_scrolled_window_new( NULL, NULL );
299 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
300 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
301
302 // Insert view into scrolled window
303 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
304
305 // Global settings which can be overridden by tags, I guess.
306 if (HasFlag( wxHSCROLL ))
307 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
308 else
309 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
310
311 if (!HasFlag(wxNO_BORDER))
312 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
313 #else
314 // create our control ...
315 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
316
317 // ... and put into the upper left hand corner of the table
318 bool bHasHScrollbar = FALSE;
319 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
320 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
321 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
322 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
323 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
324 0, 0);
325
326 // always wrap words
327 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
328
329 // finally, put the vertical scrollbar in the upper right corner
330 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
331 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
332 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
333 GTK_FILL,
334 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
335 0, 0);
336 #endif
337 }
338 else
339 {
340 // a single-line text control: no need for scrollbars
341 m_widget =
342 m_text = gtk_entry_new();
343 }
344
345 m_parent->DoAddChild( this );
346
347 m_focusWidget = m_text;
348
349 PostCreation();
350
351 SetFont( parent->GetFont() );
352
353 wxSize size_best( DoGetBestSize() );
354 wxSize new_size( size );
355 if (new_size.x == -1)
356 new_size.x = size_best.x;
357 if (new_size.y == -1)
358 new_size.y = size_best.y;
359 if ((new_size.x != size.x) || (new_size.y != size.y))
360 SetSize( new_size.x, new_size.y );
361
362 if (multi_line)
363 gtk_widget_show(m_text);
364
365 #ifndef __WXGTK20__
366 if (multi_line)
367 {
368 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
369 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
370
371 // only initialize gs_gtk_text_draw once, starting from the next the
372 // klass::draw will already be wxgtk_text_draw
373 if ( !gs_gtk_text_draw )
374 {
375 GtkDrawCallback&
376 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
377
378 gs_gtk_text_draw = draw;
379
380 draw = wxgtk_text_draw;
381 }
382 }
383 #endif // GTK+ 1.x
384
385 if (!value.IsEmpty())
386 {
387 #ifdef __WXGTK20__
388 SetValue( value );
389 #else
390
391 #if !GTK_CHECK_VERSION(1, 2, 0)
392 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
393 // gtk_editable_insert_text()
394 gtk_widget_realize(m_text);
395 #endif // GTK 1.0
396
397 gint tmp = 0;
398 #if wxUSE_UNICODE
399 wxWX2MBbuf val = value.mbc_str();
400 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
401 #else
402 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
403 #endif
404
405 if (multi_line)
406 {
407 // Bring editable's cursor uptodate. Bug in GTK.
408 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
409 }
410
411 #endif
412 }
413
414 if (style & wxTE_PASSWORD)
415 {
416 if (!multi_line)
417 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
418 }
419
420 if (style & wxTE_READONLY)
421 {
422 if (!multi_line)
423 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
424 #ifdef __WXGTK20__
425 else
426 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
427 }
428 #else
429 }
430 else
431 {
432 if (multi_line)
433 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
434 }
435 #endif
436
437 // We want to be notified about text changes.
438 #ifdef __WXGTK20__
439 if (multi_line)
440 {
441 g_signal_connect( G_OBJECT(buffer), "changed",
442 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
443 }
444 else
445 #endif
446 {
447 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
448 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
449 }
450
451 // we don't set a valid background colour, because the window
452 // manager should use a default one
453 m_backgroundColour = wxColour();
454
455 wxColour colFg = parent->GetForegroundColour();
456 SetForegroundColour( colFg );
457
458 m_cursor = wxCursor( wxCURSOR_IBEAM );
459
460 wxTextAttr attrDef( colFg, m_backgroundColour, parent->GetFont() );
461 SetDefaultStyle( attrDef );
462
463 Show( TRUE );
464
465 return TRUE;
466 }
467
468 void wxTextCtrl::CalculateScrollbar()
469 {
470 #ifndef __WXGTK20__
471 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
472
473 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
474
475 if (adj->upper - adj->page_size < 0.8)
476 {
477 if (m_vScrollbarVisible)
478 {
479 gtk_widget_hide( m_vScrollbar );
480 m_vScrollbarVisible = FALSE;
481 }
482 }
483 else
484 {
485 if (!m_vScrollbarVisible)
486 {
487 gtk_widget_show( m_vScrollbar );
488 m_vScrollbarVisible = TRUE;
489 }
490 }
491 #endif
492 }
493
494 wxString wxTextCtrl::GetValue() const
495 {
496 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
497
498 wxString tmp;
499 if (m_windowStyle & wxTE_MULTILINE)
500 {
501 #ifdef __WXGTK20__
502 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
503
504 GtkTextIter start;
505 gtk_text_buffer_get_start_iter( text_buffer, &start );
506 GtkTextIter end;
507 gtk_text_buffer_get_end_iter( text_buffer, &end );
508 gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
509
510 #if wxUSE_UNICODE
511 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
512 #else
513 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
514 #endif
515 tmp = buffer;
516
517 g_free( text );
518 #else
519 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
520 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
521 tmp = text;
522 g_free( text );
523 #endif
524 }
525 else
526 {
527 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
528 }
529
530 return tmp;
531 }
532
533 void wxTextCtrl::SetValue( const wxString &value )
534 {
535 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
536
537 if (m_windowStyle & wxTE_MULTILINE)
538 {
539 #ifdef __WXGTK20__
540
541 #if wxUSE_UNICODE
542 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
543 #else
544 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
545 #endif
546 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
547 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
548
549 #else
550 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
551 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
552 len = 0;
553 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
554 #endif
555 }
556 else
557 {
558 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
559 }
560
561 // GRG, Jun/2000: Changed this after a lot of discussion in
562 // the lists. wxWindows 2.2 will have a set of flags to
563 // customize this behaviour.
564 SetInsertionPoint(0);
565
566 m_modified = FALSE;
567 }
568
569 void wxTextCtrl::WriteText( const wxString &text )
570 {
571 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
572
573 if ( text.empty() )
574 return;
575
576 if ( m_windowStyle & wxTE_MULTILINE )
577 {
578 #ifdef __WXGTK20__
579
580 #if wxUSE_UNICODE
581 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
582 #else
583 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
584 #endif
585 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
586
587 // TODO: Call whatever is needed to delete the selection.
588 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
589
590 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
591 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
592 if ( adj->value == adj->upper - adj->page_size )
593 {
594 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
595 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
596 }
597 #else // GTK 1.x
598 // After cursor movements, gtk_text_get_point() is wrong by one.
599 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
600
601 // always use m_defaultStyle, even if it is empty as otherwise
602 // resetting the style and appending some more text wouldn't work: if
603 // we don't specify the style explicitly, the old style would be used
604 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
605 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
606
607 // we called wxGtkTextInsert with correct font, no need to do anything
608 // in UpdateFontIfNeeded() any longer
609 if ( !text.empty() )
610 {
611 m_updateFont = FALSE;
612 }
613
614 // Bring editable's cursor back uptodate.
615 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
616 #endif // GTK 1.x/2.0
617 }
618 else // single line
619 {
620 // First remove the selection if there is one
621 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
622
623 // This moves the cursor pos to behind the inserted text.
624 gint len = GET_EDITABLE_POS(m_text);
625
626 #ifdef __WXGTK20__
627
628 #if wxUSE_UNICODE
629 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
630 #else
631 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
632 #endif
633 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
634
635 #else
636 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
637 #endif
638
639 // Bring entry's cursor uptodate.
640 gtk_entry_set_position( GTK_ENTRY(m_text), len );
641 }
642
643 m_modified = TRUE;
644 }
645
646 void wxTextCtrl::AppendText( const wxString &text )
647 {
648 SetInsertionPointEnd();
649 WriteText( text );
650 }
651
652 wxString wxTextCtrl::GetLineText( long lineNo ) const
653 {
654 if (m_windowStyle & wxTE_MULTILINE)
655 {
656 #ifndef __WXGTK20__
657 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
658 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
659
660 if (text)
661 {
662 wxString buf(wxT(""));
663 long i;
664 int currentLine = 0;
665 for (i = 0; currentLine != lineNo && text[i]; i++ )
666 if (text[i] == '\n')
667 currentLine++;
668 // Now get the text
669 int j;
670 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
671 buf += text[i];
672
673 g_free( text );
674 return buf;
675 }
676 else
677 #endif
678 {
679 return wxEmptyString;
680 }
681 }
682 else
683 {
684 if (lineNo == 0) return GetValue();
685 return wxEmptyString;
686 }
687 }
688
689 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
690 {
691 /* If you implement this, don't forget to update the documentation!
692 * (file docs/latex/wx/text.tex) */
693 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
694 }
695
696 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
697 {
698 if ( m_windowStyle & wxTE_MULTILINE )
699 {
700 wxString text = GetValue();
701
702 // cast to prevent warning. But pos really should've been unsigned.
703 if( (unsigned long)pos > text.Len() )
704 return FALSE;
705
706 *x=0; // First Col
707 *y=0; // First Line
708
709 const wxChar* stop = text.c_str() + pos;
710 for ( const wxChar *p = text.c_str(); p < stop; p++ )
711 {
712 if (*p == wxT('\n'))
713 {
714 (*y)++;
715 *x=0;
716 }
717 else
718 (*x)++;
719 }
720 }
721 else // single line control
722 {
723 if ( pos <= GTK_ENTRY(m_text)->text_length )
724 {
725 *y = 0;
726 *x = pos;
727 }
728 else
729 {
730 // index out of bounds
731 return FALSE;
732 }
733 }
734
735 return TRUE;
736 }
737
738 long wxTextCtrl::XYToPosition(long x, long y ) const
739 {
740 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
741
742 long pos=0;
743 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
744
745 pos += x;
746 return pos;
747 }
748
749 int wxTextCtrl::GetLineLength(long lineNo) const
750 {
751 wxString str = GetLineText (lineNo);
752 return (int) str.Length();
753 }
754
755 int wxTextCtrl::GetNumberOfLines() const
756 {
757 if (m_windowStyle & wxTE_MULTILINE)
758 {
759 #ifdef __WXGTK20__
760 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
761
762 return gtk_text_buffer_get_line_count( buffer );
763 #else
764 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
765 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
766
767 if (text)
768 {
769 int currentLine = 0;
770 for (int i = 0; i < len; i++ )
771 {
772 if (text[i] == '\n')
773 currentLine++;
774 }
775 g_free( text );
776
777 // currentLine is 0 based, add 1 to get number of lines
778 return currentLine + 1;
779 }
780 else
781 {
782 return 0;
783 }
784 #endif
785 }
786 else
787 {
788 return 1;
789 }
790 }
791
792 void wxTextCtrl::SetInsertionPoint( long pos )
793 {
794 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
795
796 if (m_windowStyle & wxTE_MULTILINE)
797 {
798 #ifdef __WXGTK20__
799 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
800 GtkTextIter iter;
801 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
802 gtk_text_buffer_place_cursor( text_buffer, &iter );
803 #else
804 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
805 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
806
807 /* we fake a set_point by inserting and deleting. as the user
808 isn't supposed to get to know about this non-sense, we
809 disconnect so that no events are sent to the user program. */
810
811 gint tmp = (gint)pos;
812 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
813 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
814
815 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
816 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
817
818 // bring editable's cursor uptodate. Bug in GTK.
819 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
820 #endif
821 }
822 else
823 {
824 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
825
826 // Bring editable's cursor uptodate. Bug in GTK.
827 SET_EDITABLE_POS(m_text, (guint32)pos);
828 }
829 }
830
831 void wxTextCtrl::SetInsertionPointEnd()
832 {
833 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
834
835 if (m_windowStyle & wxTE_MULTILINE)
836 {
837 #ifdef __WXGTK20__
838 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
839 GtkTextIter end;
840 gtk_text_buffer_get_end_iter( text_buffer, &end );
841 gtk_text_buffer_place_cursor( text_buffer, &end );
842 #else
843 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
844 #endif
845 }
846 else
847 {
848 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
849 }
850 }
851
852 void wxTextCtrl::SetEditable( bool editable )
853 {
854 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
855
856 if (m_windowStyle & wxTE_MULTILINE)
857 {
858 #ifdef __WXGTK20__
859 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
860 #else
861 gtk_text_set_editable( GTK_TEXT(m_text), editable );
862 #endif
863 }
864 else
865 {
866 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
867 }
868 }
869
870 bool wxTextCtrl::Enable( bool enable )
871 {
872 if (!wxWindowBase::Enable(enable))
873 {
874 // nothing to do
875 return FALSE;
876 }
877
878 if (m_windowStyle & wxTE_MULTILINE)
879 {
880 #ifdef __WXGTK20__
881 SetEditable( enable );
882 #else
883 gtk_text_set_editable( GTK_TEXT(m_text), enable );
884 OnParentEnable(enable);
885 #endif
886 }
887 else
888 {
889 gtk_widget_set_sensitive( m_text, enable );
890 }
891
892 return TRUE;
893 }
894
895 // wxGTK-specific: called recursively by Enable,
896 // to give widgets an oppprtunity to correct their colours after they
897 // have been changed by Enable
898 void wxTextCtrl::OnParentEnable( bool enable )
899 {
900 // If we have a custom background colour, we use this colour in both
901 // disabled and enabled mode, or we end up with a different colour under the
902 // text.
903 wxColour oldColour = GetBackgroundColour();
904 if (oldColour.Ok())
905 {
906 // Need to set twice or it'll optimize the useful stuff out
907 if (oldColour == * wxWHITE)
908 SetBackgroundColour(*wxBLACK);
909 else
910 SetBackgroundColour(*wxWHITE);
911 SetBackgroundColour(oldColour);
912 }
913 }
914
915 void wxTextCtrl::MarkDirty()
916 {
917 m_modified = TRUE;
918 }
919
920 void wxTextCtrl::DiscardEdits()
921 {
922 m_modified = FALSE;
923 }
924
925 // ----------------------------------------------------------------------------
926 // max text length support
927 // ----------------------------------------------------------------------------
928
929 void wxTextCtrl::IgnoreNextTextUpdate()
930 {
931 m_ignoreNextUpdate = TRUE;
932 }
933
934 bool wxTextCtrl::IgnoreTextUpdate()
935 {
936 if ( m_ignoreNextUpdate )
937 {
938 m_ignoreNextUpdate = FALSE;
939
940 return TRUE;
941 }
942
943 return FALSE;
944 }
945
946 void wxTextCtrl::SetMaxLength(unsigned long len)
947 {
948 if ( !HasFlag(wxTE_MULTILINE) )
949 {
950 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
951
952 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
953 // we had tried to enter more text than allowed by max text length and
954 // the text wasn't really changed
955 //
956 // to detect this and generate TEXT_MAXLEN event instead of
957 // TEXT_CHANGED one in this case we also catch "insert_text" signal
958 //
959 // when max len is set to 0 we disconnect our handler as it means that
960 // we shouldn't check anything any more
961 if ( len )
962 {
963 gtk_signal_connect( GTK_OBJECT(m_text),
964 "insert_text",
965 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
966 (gpointer)this);
967 }
968 else // no checking
969 {
970 gtk_signal_disconnect_by_func
971 (
972 GTK_OBJECT(m_text),
973 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
974 (gpointer)this
975 );
976 }
977 }
978 }
979
980 void wxTextCtrl::SetSelection( long from, long to )
981 {
982 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
983
984 if (from == -1 && to == -1)
985 {
986 from = 0;
987 to = GetValue().Length();
988 }
989
990 #ifndef __WXGTK20__
991 if ( (m_windowStyle & wxTE_MULTILINE) &&
992 !GTK_TEXT(m_text)->line_start_cache )
993 {
994 // tell the programmer that it didn't work
995 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
996 return;
997 }
998 #endif
999
1000 if (m_windowStyle & wxTE_MULTILINE)
1001 {
1002 #ifdef __WXGTK20__
1003 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1004
1005 GtkTextIter fromi, toi;
1006 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1007 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1008
1009 gtk_text_buffer_place_cursor( buf, &toi );
1010 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1011 #else
1012 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1013 #endif
1014 }
1015 else
1016 {
1017 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1018 }
1019 }
1020
1021 void wxTextCtrl::ShowPosition( long pos )
1022 {
1023 if (m_windowStyle & wxTE_MULTILINE)
1024 {
1025 #ifdef __WXGTK20__
1026 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1027 GtkTextIter iter;
1028 gtk_text_buffer_get_start_iter( buf, &iter );
1029 gtk_text_iter_set_offset( &iter, pos );
1030 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1031 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1032 #else // GTK 1.x
1033 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1034 float totalLines = (float) GetNumberOfLines();
1035 long posX;
1036 long posY;
1037 PositionToXY(pos, &posX, &posY);
1038 float posLine = (float) posY;
1039 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1040 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1041 #endif // GTK 1.x/2.x
1042 }
1043 }
1044
1045 long wxTextCtrl::GetInsertionPoint() const
1046 {
1047 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1048
1049 #ifdef __WXGTK20__
1050 if (m_windowStyle & wxTE_MULTILINE)
1051 {
1052 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1053
1054 // There is no direct accessor for the cursor, but
1055 // internally, the cursor is the "mark" called
1056 // "insert" in the text view's btree structure.
1057
1058 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1059 GtkTextIter cursor;
1060 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1061
1062 return gtk_text_iter_get_offset( &cursor );
1063 }
1064 else
1065 #endif
1066 {
1067 return (long) GET_EDITABLE_POS(m_text);
1068 }
1069 }
1070
1071 long wxTextCtrl::GetLastPosition() const
1072 {
1073 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1074
1075 int pos = 0;
1076
1077 if (m_windowStyle & wxTE_MULTILINE)
1078 {
1079 #ifdef __WXGTK20__
1080 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1081 GtkTextIter end;
1082 gtk_text_buffer_get_end_iter( text_buffer, &end );
1083
1084 pos = gtk_text_iter_get_offset( &end );
1085 #else
1086 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1087 #endif
1088 }
1089 else
1090 {
1091 pos = GTK_ENTRY(m_text)->text_length;
1092 }
1093
1094 return (long)pos;
1095 }
1096
1097 void wxTextCtrl::Remove( long from, long to )
1098 {
1099 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1100
1101 #ifdef __WXGTK20__
1102 if (m_windowStyle & wxTE_MULTILINE)
1103 {
1104 GtkTextBuffer *
1105 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1106
1107 GtkTextIter fromi, toi;
1108 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1109 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1110
1111 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1112 }
1113 else // single line
1114 #endif
1115 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1116 }
1117
1118 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1119 {
1120 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1121
1122 Remove( from, to );
1123
1124 if (!value.IsEmpty())
1125 {
1126 #ifdef __WXGTK20__
1127 SetInsertionPoint( from );
1128 WriteText( value );
1129 #else // GTK 1.x
1130 gint pos = (gint)from;
1131 #if wxUSE_UNICODE
1132 wxWX2MBbuf buf = value.mbc_str();
1133 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1134 #else
1135 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1136 #endif // wxUSE_UNICODE
1137 #endif // GTK 1.x/2.x
1138 }
1139 }
1140
1141 void wxTextCtrl::Cut()
1142 {
1143 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1144
1145 #ifndef __WXGTK20__
1146 gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1147 #endif
1148 }
1149
1150 void wxTextCtrl::Copy()
1151 {
1152 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1153
1154 #ifndef __WXGTK20__
1155 gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1156 #endif
1157 }
1158
1159 void wxTextCtrl::Paste()
1160 {
1161 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1162
1163 #ifndef __WXGTK20__
1164 gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1165 #endif
1166 }
1167
1168 // Undo/redo
1169 void wxTextCtrl::Undo()
1170 {
1171 // TODO
1172 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1173 }
1174
1175 void wxTextCtrl::Redo()
1176 {
1177 // TODO
1178 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1179 }
1180
1181 bool wxTextCtrl::CanUndo() const
1182 {
1183 // TODO
1184 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1185 return FALSE;
1186 }
1187
1188 bool wxTextCtrl::CanRedo() const
1189 {
1190 // TODO
1191 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1192 return FALSE;
1193 }
1194
1195 // If the return values from and to are the same, there is no
1196 // selection.
1197 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1198 {
1199 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1200
1201 gint from = -1;
1202 gint to = -1;
1203 bool haveSelection = FALSE;
1204
1205 #ifdef __WXGTK20__
1206 if (m_windowStyle & wxTE_MULTILINE)
1207 {
1208 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1209 GtkTextIter ifrom, ito;
1210 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1211 {
1212 haveSelection = TRUE;
1213 from = gtk_text_iter_get_offset(&ifrom);
1214 to = gtk_text_iter_get_offset(&ito);
1215 }
1216 }
1217 else // not multi-line
1218 {
1219 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1220 &from, &to) )
1221 {
1222 haveSelection = TRUE;
1223 }
1224 }
1225 #else // not GTK2
1226 if ( (GTK_EDITABLE(m_text)->has_selection) )
1227 {
1228 haveSelection = TRUE;
1229 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1230 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1231 }
1232 #endif
1233
1234 if (! haveSelection )
1235 from = to = GetInsertionPoint();
1236
1237 if ( from > to )
1238 {
1239 // exchange them to be compatible with wxMSW
1240 gint tmp = from;
1241 from = to;
1242 to = tmp;
1243 }
1244
1245 if ( fromOut )
1246 *fromOut = from;
1247 if ( toOut )
1248 *toOut = to;
1249 }
1250
1251
1252 bool wxTextCtrl::IsEditable() const
1253 {
1254 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1255
1256 #ifdef __WXGTK20__
1257 if (m_windowStyle & wxTE_MULTILINE)
1258 {
1259 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1260 }
1261 else
1262 {
1263 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1264 }
1265 #else
1266 return GTK_EDITABLE(m_text)->editable;
1267 #endif
1268 }
1269
1270 bool wxTextCtrl::IsModified() const
1271 {
1272 return m_modified;
1273 }
1274
1275 void wxTextCtrl::Clear()
1276 {
1277 SetValue( wxT("") );
1278 }
1279
1280 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1281 {
1282 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1283
1284 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1285 {
1286 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1287 event.SetEventObject(this);
1288 event.SetString(GetValue());
1289 if (GetEventHandler()->ProcessEvent(event)) return;
1290 }
1291
1292 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1293 {
1294 // This will invoke the dialog default action, such
1295 // as the clicking the default button.
1296
1297 wxWindow *top_frame = m_parent;
1298 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1299 top_frame = top_frame->GetParent();
1300
1301 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1302 {
1303 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1304
1305 if (window->default_widget)
1306 {
1307 gtk_widget_activate (window->default_widget);
1308 return;
1309 }
1310 }
1311 }
1312
1313 key_event.Skip();
1314 }
1315
1316 GtkWidget* wxTextCtrl::GetConnectWidget()
1317 {
1318 return GTK_WIDGET(m_text);
1319 }
1320
1321 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1322 {
1323 if (m_windowStyle & wxTE_MULTILINE)
1324 {
1325 #ifdef __WXGTK20__
1326 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1327 #else
1328 return (window == GTK_TEXT(m_text)->text_area);
1329 #endif
1330 }
1331 else
1332 {
1333 return (window == GTK_ENTRY(m_text)->text_area);
1334 }
1335 }
1336
1337 // the font will change for subsequent text insertiongs
1338 bool wxTextCtrl::SetFont( const wxFont &font )
1339 {
1340 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1341
1342 if ( !wxTextCtrlBase::SetFont(font) )
1343 {
1344 // font didn't change, nothing to do
1345 return FALSE;
1346 }
1347
1348 if ( m_windowStyle & wxTE_MULTILINE )
1349 {
1350 m_updateFont = TRUE;
1351
1352 m_defaultStyle.SetFont(font);
1353
1354 ChangeFontGlobally();
1355 }
1356
1357 return TRUE;
1358 }
1359
1360 void wxTextCtrl::ChangeFontGlobally()
1361 {
1362 // this method is very inefficient and hence should be called as rarely as
1363 // possible!
1364 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1365 _T("shouldn't be called for single line controls") );
1366
1367 wxString value = GetValue();
1368 if ( !value.IsEmpty() )
1369 {
1370 m_updateFont = FALSE;
1371
1372 Clear();
1373 AppendText(value);
1374 }
1375 }
1376
1377 void wxTextCtrl::UpdateFontIfNeeded()
1378 {
1379 if ( m_updateFont )
1380 ChangeFontGlobally();
1381 }
1382
1383 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1384 {
1385 if ( !wxControl::SetForegroundColour(colour) )
1386 return FALSE;
1387
1388 // update default fg colour too
1389 m_defaultStyle.SetTextColour(colour);
1390
1391 return TRUE;
1392 }
1393
1394 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1395 {
1396 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1397
1398 if ( !wxControl::SetBackgroundColour( colour ) )
1399 return FALSE;
1400
1401 if (!m_widget->window)
1402 return FALSE;
1403
1404 wxColour sysbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
1405 if (sysbg.Red() == colour.Red() &&
1406 sysbg.Green() == colour.Green() &&
1407 sysbg.Blue() == colour.Blue())
1408 {
1409 return FALSE; // FIXME or TRUE?
1410 }
1411
1412 if (!m_backgroundColour.Ok())
1413 return FALSE;
1414
1415 if (m_windowStyle & wxTE_MULTILINE)
1416 {
1417 #ifndef __WXGTK20__
1418 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1419 if (!window)
1420 return FALSE;
1421 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1422 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1423 gdk_window_clear( window );
1424 #endif
1425 }
1426
1427 // change active background color too
1428 m_defaultStyle.SetBackgroundColour( colour );
1429
1430 return TRUE;
1431 }
1432
1433 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1434 {
1435 if ( m_windowStyle & wxTE_MULTILINE )
1436 {
1437 if ( style.IsDefault() )
1438 {
1439 // nothing to do
1440 return TRUE;
1441 }
1442 #ifdef __WXGTK20__
1443 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1444 gint l = gtk_text_buffer_get_char_count( text_buffer );
1445
1446 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1447 _T("invalid range in wxTextCtrl::SetStyle") );
1448
1449 GtkTextIter starti, endi;
1450 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1451 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1452
1453 // use the attributes from style which are set in it and fall back
1454 // first to the default style and then to the text control default
1455 // colours for the others
1456 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1457
1458 PangoFontDescription *font_description = attr.HasFont()
1459 ? attr.GetFont().GetNativeFontInfo()->description
1460 : NULL;
1461
1462 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1463 : NULL;
1464
1465 GdkColor *colBg = attr.HasBackgroundColour()
1466 ? attr.GetBackgroundColour().GetColor()
1467 : NULL;
1468
1469 GtkTextTag *tag;
1470 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1471 "foreground-gdk", colFg,
1472 "background-gdk", colBg, NULL );
1473 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1474
1475 return TRUE;
1476 #else
1477 // VERY dirty way to do that - removes the required text and re-adds it
1478 // with styling (FIXME)
1479
1480 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1481
1482 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1483 _T("invalid range in wxTextCtrl::SetStyle") );
1484
1485 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1486 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1487 wxString tmp(text,*wxConvCurrent);
1488 g_free( text );
1489
1490 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1491 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1492
1493 #if wxUSE_UNICODE
1494 wxWX2MBbuf buf = tmp.mbc_str();
1495 const char *txt = buf;
1496 size_t txtlen = strlen(buf);
1497 #else
1498 const char *txt = tmp;
1499 size_t txtlen = tmp.length();
1500 #endif
1501
1502 // use the attributes from style which are set in it and fall back
1503 // first to the default style and then to the text control default
1504 // colours for the others
1505 wxGtkTextInsert(m_text,
1506 wxTextAttr::Combine(style, m_defaultStyle, this),
1507 txt,
1508 txtlen);
1509
1510 /* does not seem to help under GTK+ 1.2 !!!
1511 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1512 SetInsertionPoint( old_pos );
1513 #endif
1514 return TRUE;
1515 }
1516 else // singe line
1517 {
1518 // cannot do this for GTK+'s Entry widget
1519 return FALSE;
1520 }
1521 }
1522
1523 void wxTextCtrl::ApplyWidgetStyle()
1524 {
1525 if (m_windowStyle & wxTE_MULTILINE)
1526 {
1527 // how ?
1528 }
1529 else
1530 {
1531 SetWidgetStyle();
1532 gtk_widget_set_style( m_text, m_widgetStyle );
1533 }
1534 }
1535
1536 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1537 {
1538 Cut();
1539 }
1540
1541 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1542 {
1543 Copy();
1544 }
1545
1546 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1547 {
1548 Paste();
1549 }
1550
1551 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1552 {
1553 Undo();
1554 }
1555
1556 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1557 {
1558 Redo();
1559 }
1560
1561 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1562 {
1563 event.Enable( CanCut() );
1564 }
1565
1566 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1567 {
1568 event.Enable( CanCopy() );
1569 }
1570
1571 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1572 {
1573 event.Enable( CanPaste() );
1574 }
1575
1576 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1577 {
1578 event.Enable( CanUndo() );
1579 }
1580
1581 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1582 {
1583 event.Enable( CanRedo() );
1584 }
1585
1586 void wxTextCtrl::OnInternalIdle()
1587 {
1588 wxCursor cursor = m_cursor;
1589 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1590
1591 if (cursor.Ok())
1592 {
1593 #ifndef __WXGTK20__
1594 GdkWindow *window = (GdkWindow*) NULL;
1595 if (HasFlag(wxTE_MULTILINE))
1596 window = GTK_TEXT(m_text)->text_area;
1597 else
1598 window = GTK_ENTRY(m_text)->text_area;
1599
1600 if (window)
1601 gdk_window_set_cursor( window, cursor.GetCursor() );
1602
1603 if (!g_globalCursor.Ok())
1604 cursor = *wxSTANDARD_CURSOR;
1605
1606 window = m_widget->window;
1607 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1608 gdk_window_set_cursor( window, cursor.GetCursor() );
1609 #endif
1610 }
1611
1612 if (g_delayedFocus == this)
1613 {
1614 if (GTK_WIDGET_REALIZED(m_widget))
1615 {
1616 gtk_widget_grab_focus( m_widget );
1617 g_delayedFocus = NULL;
1618 }
1619 }
1620
1621 if (wxUpdateUIEvent::CanUpdate(this))
1622 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1623 }
1624
1625 wxSize wxTextCtrl::DoGetBestSize() const
1626 {
1627 // FIXME should be different for multi-line controls...
1628 wxSize ret( wxControl::DoGetBestSize() );
1629 return wxSize(80, ret.y);
1630 }
1631
1632 // ----------------------------------------------------------------------------
1633 // freeze/thaw
1634 // ----------------------------------------------------------------------------
1635
1636 void wxTextCtrl::Freeze()
1637 {
1638 #ifndef __WXGTK20__
1639 if ( HasFlag(wxTE_MULTILINE) )
1640 {
1641 gtk_text_freeze(GTK_TEXT(m_text));
1642 }
1643 #endif
1644 }
1645
1646 void wxTextCtrl::Thaw()
1647 {
1648 #ifndef __WXGTK20__
1649 if ( HasFlag(wxTE_MULTILINE) )
1650 {
1651 GTK_TEXT(m_text)->vadj->value = 0.0;
1652
1653 gtk_text_thaw(GTK_TEXT(m_text));
1654 }
1655 #endif
1656 }
1657
1658 // ----------------------------------------------------------------------------
1659 // scrolling
1660 // ----------------------------------------------------------------------------
1661
1662 GtkAdjustment *wxTextCtrl::GetVAdj() const
1663 {
1664 #ifdef __WXGTK20__
1665 return NULL;
1666 #else
1667 return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
1668 #endif
1669 }
1670
1671 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1672 {
1673 #ifndef __WXGTK20__
1674 float value = adj->value + diff;
1675
1676 if ( value < 0 )
1677 value = 0;
1678
1679 float upper = adj->upper - adj->page_size;
1680 if ( value > upper )
1681 value = upper;
1682
1683 // did we noticeably change the scroll position?
1684 if ( fabs(adj->value - value) < 0.2 )
1685 {
1686 // well, this is what Robert does in wxScrollBar, so it must be good...
1687 return FALSE;
1688 }
1689
1690 adj->value = value;
1691
1692 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1693
1694 #endif
1695 return TRUE;
1696 }
1697
1698 bool wxTextCtrl::ScrollLines(int lines)
1699 {
1700 #ifdef __WXGTK20__
1701 return FALSE;
1702 #else
1703 GtkAdjustment *adj = GetVAdj();
1704 if ( !adj )
1705 return FALSE;
1706
1707 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1708 static const int KEY_SCROLL_PIXELS = 10;
1709
1710 return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
1711 #endif
1712 }
1713
1714 bool wxTextCtrl::ScrollPages(int pages)
1715 {
1716 #ifdef __WXGTK20__
1717 return FALSE;
1718 #else
1719 GtkAdjustment *adj = GetVAdj();
1720 if ( !adj )
1721 return FALSE;
1722
1723 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1724 #endif
1725 }
1726
wxWidgets (Impactor)