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[wxWidgets.git] / src / gtk1 / 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 ) || HasFlag( wxTE_DONTWRAP ))
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
314 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
315 #else
316 // create our control ...
317 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
318
319 // ... and put into the upper left hand corner of the table
320 bool bHasHScrollbar = FALSE;
321 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
322 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
323 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
324 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
325 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
326 0, 0);
327
328 // always wrap words
329 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
330
331 // finally, put the vertical scrollbar in the upper right corner
332 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
333 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
334 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
335 GTK_FILL,
336 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
337 0, 0);
338 #endif
339 }
340 else
341 {
342 // a single-line text control: no need for scrollbars
343 m_widget =
344 m_text = gtk_entry_new();
345 }
346
347 m_parent->DoAddChild( this );
348
349 m_focusWidget = m_text;
350
351 PostCreation(size);
352
353 if (multi_line)
354 gtk_widget_show(m_text);
355
356 #ifndef __WXGTK20__
357 if (multi_line)
358 {
359 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
360 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
361
362 // only initialize gs_gtk_text_draw once, starting from the next the
363 // klass::draw will already be wxgtk_text_draw
364 if ( !gs_gtk_text_draw )
365 {
366 GtkDrawCallback&
367 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
368
369 gs_gtk_text_draw = draw;
370
371 draw = wxgtk_text_draw;
372 }
373 }
374 #endif // GTK+ 1.x
375
376 if (!value.IsEmpty())
377 {
378 #ifdef __WXGTK20__
379 SetValue( value );
380 #else
381
382 #if !GTK_CHECK_VERSION(1, 2, 0)
383 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
384 // gtk_editable_insert_text()
385 gtk_widget_realize(m_text);
386 #endif // GTK 1.0
387
388 gint tmp = 0;
389 #if wxUSE_UNICODE
390 wxWX2MBbuf val = value.mbc_str();
391 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
392 #else
393 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
394 #endif
395
396 if (multi_line)
397 {
398 // Bring editable's cursor uptodate. Bug in GTK.
399 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
400 }
401
402 #endif
403 }
404
405 if (style & wxTE_PASSWORD)
406 {
407 if (!multi_line)
408 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
409 }
410
411 if (style & wxTE_READONLY)
412 {
413 if (!multi_line)
414 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
415 #ifdef __WXGTK20__
416 else
417 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
418 #else
419 }
420 else
421 {
422 if (multi_line)
423 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
424 #endif
425 }
426
427
428 // We want to be notified about text changes.
429 #ifdef __WXGTK20__
430 if (multi_line)
431 {
432 g_signal_connect( G_OBJECT(buffer), "changed",
433 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
434 }
435 else
436 #endif
437
438 {
439 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
440 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
441 }
442
443 m_cursor = wxCursor( wxCURSOR_IBEAM );
444
445 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
446 SetDefaultStyle( attrDef );
447
448 return TRUE;
449 }
450
451
452 void wxTextCtrl::CalculateScrollbar()
453 {
454 #ifndef __WXGTK20__
455 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
456
457 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
458
459 if (adj->upper - adj->page_size < 0.8)
460 {
461 if (m_vScrollbarVisible)
462 {
463 gtk_widget_hide( m_vScrollbar );
464 m_vScrollbarVisible = FALSE;
465 }
466 }
467 else
468 {
469 if (!m_vScrollbarVisible)
470 {
471 gtk_widget_show( m_vScrollbar );
472 m_vScrollbarVisible = TRUE;
473 }
474 }
475 #endif
476 }
477
478 wxString wxTextCtrl::GetValue() const
479 {
480 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
481
482 wxString tmp;
483 if (m_windowStyle & wxTE_MULTILINE)
484 {
485 #ifdef __WXGTK20__
486 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
487
488 GtkTextIter start;
489 gtk_text_buffer_get_start_iter( text_buffer, &start );
490 GtkTextIter end;
491 gtk_text_buffer_get_end_iter( text_buffer, &end );
492 gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
493
494 #if wxUSE_UNICODE
495 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
496 #else
497 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
498 #endif
499 tmp = buffer;
500
501 g_free( text );
502 #else
503 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
504 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
505 tmp = text;
506 g_free( text );
507 #endif
508 }
509 else
510 {
511 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
512 }
513
514 return tmp;
515 }
516
517 void wxTextCtrl::SetValue( const wxString &value )
518 {
519 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
520
521 if (m_windowStyle & wxTE_MULTILINE)
522 {
523 #ifdef __WXGTK20__
524
525 #if wxUSE_UNICODE
526 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
527 #else
528 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
529 #endif
530 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
531 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
532
533 #else
534 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
535 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
536 len = 0;
537 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
538 #endif
539 }
540 else
541 {
542 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
543 }
544
545 // GRG, Jun/2000: Changed this after a lot of discussion in
546 // the lists. wxWindows 2.2 will have a set of flags to
547 // customize this behaviour.
548 SetInsertionPoint(0);
549
550 m_modified = FALSE;
551 }
552
553 void wxTextCtrl::WriteText( const wxString &text )
554 {
555 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
556
557 if ( text.empty() )
558 return;
559
560 if ( m_windowStyle & wxTE_MULTILINE )
561 {
562 #ifdef __WXGTK20__
563
564 #if wxUSE_UNICODE
565 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
566 #else
567 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
568 #endif
569 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
570
571 // TODO: Call whatever is needed to delete the selection.
572 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
573
574 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
575 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
576 if ( adj->value == adj->upper - adj->page_size )
577 {
578 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
579 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
580 }
581 #else // GTK 1.x
582 // After cursor movements, gtk_text_get_point() is wrong by one.
583 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
584
585 // always use m_defaultStyle, even if it is empty as otherwise
586 // resetting the style and appending some more text wouldn't work: if
587 // we don't specify the style explicitly, the old style would be used
588 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
589 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
590
591 // we called wxGtkTextInsert with correct font, no need to do anything
592 // in UpdateFontIfNeeded() any longer
593 if ( !text.empty() )
594 {
595 m_updateFont = FALSE;
596 }
597
598 // Bring editable's cursor back uptodate.
599 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
600 #endif // GTK 1.x/2.0
601 }
602 else // single line
603 {
604 // First remove the selection if there is one
605 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
606
607 // This moves the cursor pos to behind the inserted text.
608 gint len = GET_EDITABLE_POS(m_text);
609
610 #ifdef __WXGTK20__
611
612 #if wxUSE_UNICODE
613 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
614 #else
615 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
616 #endif
617 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
618
619 #else
620 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
621 #endif
622
623 // Bring entry's cursor uptodate.
624 gtk_entry_set_position( GTK_ENTRY(m_text), len );
625 }
626
627 m_modified = TRUE;
628 }
629
630 void wxTextCtrl::AppendText( const wxString &text )
631 {
632 SetInsertionPointEnd();
633 WriteText( text );
634 }
635
636 wxString wxTextCtrl::GetLineText( long lineNo ) const
637 {
638 if (m_windowStyle & wxTE_MULTILINE)
639 {
640 #ifndef __WXGTK20__
641 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
642 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
643
644 if (text)
645 {
646 wxString buf(wxT(""));
647 long i;
648 int currentLine = 0;
649 for (i = 0; currentLine != lineNo && text[i]; i++ )
650 if (text[i] == '\n')
651 currentLine++;
652 // Now get the text
653 int j;
654 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
655 buf += text[i];
656
657 g_free( text );
658 return buf;
659 }
660 else
661 {
662 return wxEmptyString;
663 }
664 #else
665 GtkTextBuffer *text_buffer;
666 text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
667 GtkTextIter line;
668 gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
669 GtkTextIter end;
670 gtk_text_buffer_get_end_iter(text_buffer,&end );
671 gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
672 wxString result(wxGTK_CONV_BACK(text));
673 g_free(text);
674 return result.BeforeFirst(wxT('\n'));
675 #endif
676 }
677 else
678 {
679 if (lineNo == 0) return GetValue();
680 return wxEmptyString;
681 }
682 }
683
684 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
685 {
686 /* If you implement this, don't forget to update the documentation!
687 * (file docs/latex/wx/text.tex) */
688 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
689 }
690
691 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
692 {
693 if ( m_windowStyle & wxTE_MULTILINE )
694 {
695 wxString text = GetValue();
696
697 // cast to prevent warning. But pos really should've been unsigned.
698 if( (unsigned long)pos > text.Len() )
699 return FALSE;
700
701 *x=0; // First Col
702 *y=0; // First Line
703
704 const wxChar* stop = text.c_str() + pos;
705 for ( const wxChar *p = text.c_str(); p < stop; p++ )
706 {
707 if (*p == wxT('\n'))
708 {
709 (*y)++;
710 *x=0;
711 }
712 else
713 (*x)++;
714 }
715 }
716 else // single line control
717 {
718 if ( pos <= GTK_ENTRY(m_text)->text_length )
719 {
720 *y = 0;
721 *x = pos;
722 }
723 else
724 {
725 // index out of bounds
726 return FALSE;
727 }
728 }
729
730 return TRUE;
731 }
732
733 long wxTextCtrl::XYToPosition(long x, long y ) const
734 {
735 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
736
737 long pos=0;
738 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
739
740 pos += x;
741 return pos;
742 }
743
744 int wxTextCtrl::GetLineLength(long lineNo) const
745 {
746 wxString str = GetLineText (lineNo);
747 return (int) str.Length();
748 }
749
750 int wxTextCtrl::GetNumberOfLines() const
751 {
752 if (m_windowStyle & wxTE_MULTILINE)
753 {
754 #ifdef __WXGTK20__
755 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
756
757 return gtk_text_buffer_get_line_count( buffer );
758 #else
759 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
760 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
761
762 if (text)
763 {
764 int currentLine = 0;
765 for (int i = 0; i < len; i++ )
766 {
767 if (text[i] == '\n')
768 currentLine++;
769 }
770 g_free( text );
771
772 // currentLine is 0 based, add 1 to get number of lines
773 return currentLine + 1;
774 }
775 else
776 {
777 return 0;
778 }
779 #endif
780 }
781 else
782 {
783 return 1;
784 }
785 }
786
787 void wxTextCtrl::SetInsertionPoint( long pos )
788 {
789 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
790
791 if (m_windowStyle & wxTE_MULTILINE)
792 {
793 #ifdef __WXGTK20__
794 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
795 GtkTextIter iter;
796 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
797 gtk_text_buffer_place_cursor( text_buffer, &iter );
798 #else
799 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
800 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
801
802 /* we fake a set_point by inserting and deleting. as the user
803 isn't supposed to get to know about this non-sense, we
804 disconnect so that no events are sent to the user program. */
805
806 gint tmp = (gint)pos;
807 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
808 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
809
810 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
811 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
812
813 // bring editable's cursor uptodate. Bug in GTK.
814 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
815 #endif
816 }
817 else
818 {
819 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
820
821 // Bring editable's cursor uptodate. Bug in GTK.
822 SET_EDITABLE_POS(m_text, (guint32)pos);
823 }
824 }
825
826 void wxTextCtrl::SetInsertionPointEnd()
827 {
828 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
829
830 if (m_windowStyle & wxTE_MULTILINE)
831 {
832 #ifdef __WXGTK20__
833 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
834 GtkTextIter end;
835 gtk_text_buffer_get_end_iter( text_buffer, &end );
836 gtk_text_buffer_place_cursor( text_buffer, &end );
837 #else
838 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
839 #endif
840 }
841 else
842 {
843 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
844 }
845 }
846
847 void wxTextCtrl::SetEditable( bool editable )
848 {
849 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
850
851 if (m_windowStyle & wxTE_MULTILINE)
852 {
853 #ifdef __WXGTK20__
854 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
855 #else
856 gtk_text_set_editable( GTK_TEXT(m_text), editable );
857 #endif
858 }
859 else
860 {
861 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
862 }
863 }
864
865 bool wxTextCtrl::Enable( bool enable )
866 {
867 if (!wxWindowBase::Enable(enable))
868 {
869 // nothing to do
870 return FALSE;
871 }
872
873 if (m_windowStyle & wxTE_MULTILINE)
874 {
875 #ifdef __WXGTK20__
876 SetEditable( enable );
877 #else
878 gtk_text_set_editable( GTK_TEXT(m_text), enable );
879 OnParentEnable(enable);
880 #endif
881 }
882 else
883 {
884 gtk_widget_set_sensitive( m_text, enable );
885 }
886
887 return TRUE;
888 }
889
890 // wxGTK-specific: called recursively by Enable,
891 // to give widgets an oppprtunity to correct their colours after they
892 // have been changed by Enable
893 void wxTextCtrl::OnParentEnable( bool enable )
894 {
895 // If we have a custom background colour, we use this colour in both
896 // disabled and enabled mode, or we end up with a different colour under the
897 // text.
898 wxColour oldColour = GetBackgroundColour();
899 if (oldColour.Ok())
900 {
901 // Need to set twice or it'll optimize the useful stuff out
902 if (oldColour == * wxWHITE)
903 SetBackgroundColour(*wxBLACK);
904 else
905 SetBackgroundColour(*wxWHITE);
906 SetBackgroundColour(oldColour);
907 }
908 }
909
910 void wxTextCtrl::MarkDirty()
911 {
912 m_modified = TRUE;
913 }
914
915 void wxTextCtrl::DiscardEdits()
916 {
917 m_modified = FALSE;
918 }
919
920 // ----------------------------------------------------------------------------
921 // max text length support
922 // ----------------------------------------------------------------------------
923
924 void wxTextCtrl::IgnoreNextTextUpdate()
925 {
926 m_ignoreNextUpdate = TRUE;
927 }
928
929 bool wxTextCtrl::IgnoreTextUpdate()
930 {
931 if ( m_ignoreNextUpdate )
932 {
933 m_ignoreNextUpdate = FALSE;
934
935 return TRUE;
936 }
937
938 return FALSE;
939 }
940
941 void wxTextCtrl::SetMaxLength(unsigned long len)
942 {
943 if ( !HasFlag(wxTE_MULTILINE) )
944 {
945 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
946
947 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
948 // we had tried to enter more text than allowed by max text length and
949 // the text wasn't really changed
950 //
951 // to detect this and generate TEXT_MAXLEN event instead of
952 // TEXT_CHANGED one in this case we also catch "insert_text" signal
953 //
954 // when max len is set to 0 we disconnect our handler as it means that
955 // we shouldn't check anything any more
956 if ( len )
957 {
958 gtk_signal_connect( GTK_OBJECT(m_text),
959 "insert_text",
960 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
961 (gpointer)this);
962 }
963 else // no checking
964 {
965 gtk_signal_disconnect_by_func
966 (
967 GTK_OBJECT(m_text),
968 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
969 (gpointer)this
970 );
971 }
972 }
973 }
974
975 void wxTextCtrl::SetSelection( long from, long to )
976 {
977 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
978
979 if (from == -1 && to == -1)
980 {
981 from = 0;
982 to = GetValue().Length();
983 }
984
985 #ifndef __WXGTK20__
986 if ( (m_windowStyle & wxTE_MULTILINE) &&
987 !GTK_TEXT(m_text)->line_start_cache )
988 {
989 // tell the programmer that it didn't work
990 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
991 return;
992 }
993 #endif
994
995 if (m_windowStyle & wxTE_MULTILINE)
996 {
997 #ifdef __WXGTK20__
998 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
999
1000 GtkTextIter fromi, toi;
1001 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1002 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1003
1004 gtk_text_buffer_place_cursor( buf, &toi );
1005 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1006 #else
1007 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1008 #endif
1009 }
1010 else
1011 {
1012 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1013 }
1014 }
1015
1016 void wxTextCtrl::ShowPosition( long pos )
1017 {
1018 if (m_windowStyle & wxTE_MULTILINE)
1019 {
1020 #ifdef __WXGTK20__
1021 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1022 GtkTextIter iter;
1023 gtk_text_buffer_get_start_iter( buf, &iter );
1024 gtk_text_iter_set_offset( &iter, pos );
1025 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1026 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1027 #else // GTK 1.x
1028 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1029 float totalLines = (float) GetNumberOfLines();
1030 long posX;
1031 long posY;
1032 PositionToXY(pos, &posX, &posY);
1033 float posLine = (float) posY;
1034 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1035 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1036 #endif // GTK 1.x/2.x
1037 }
1038 }
1039
1040 long wxTextCtrl::GetInsertionPoint() const
1041 {
1042 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1043
1044 #ifdef __WXGTK20__
1045 if (m_windowStyle & wxTE_MULTILINE)
1046 {
1047 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1048
1049 // There is no direct accessor for the cursor, but
1050 // internally, the cursor is the "mark" called
1051 // "insert" in the text view's btree structure.
1052
1053 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1054 GtkTextIter cursor;
1055 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1056
1057 return gtk_text_iter_get_offset( &cursor );
1058 }
1059 else
1060 #endif
1061 {
1062 return (long) GET_EDITABLE_POS(m_text);
1063 }
1064 }
1065
1066 long wxTextCtrl::GetLastPosition() const
1067 {
1068 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1069
1070 int pos = 0;
1071
1072 if (m_windowStyle & wxTE_MULTILINE)
1073 {
1074 #ifdef __WXGTK20__
1075 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1076 GtkTextIter end;
1077 gtk_text_buffer_get_end_iter( text_buffer, &end );
1078
1079 pos = gtk_text_iter_get_offset( &end );
1080 #else
1081 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1082 #endif
1083 }
1084 else
1085 {
1086 pos = GTK_ENTRY(m_text)->text_length;
1087 }
1088
1089 return (long)pos;
1090 }
1091
1092 void wxTextCtrl::Remove( long from, long to )
1093 {
1094 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1095
1096 #ifdef __WXGTK20__
1097 if (m_windowStyle & wxTE_MULTILINE)
1098 {
1099 GtkTextBuffer *
1100 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1101
1102 GtkTextIter fromi, toi;
1103 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1104 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1105
1106 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1107 }
1108 else // single line
1109 #endif
1110 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1111 }
1112
1113 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1114 {
1115 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1116
1117 Remove( from, to );
1118
1119 if (!value.IsEmpty())
1120 {
1121 #ifdef __WXGTK20__
1122 SetInsertionPoint( from );
1123 WriteText( value );
1124 #else // GTK 1.x
1125 gint pos = (gint)from;
1126 #if wxUSE_UNICODE
1127 wxWX2MBbuf buf = value.mbc_str();
1128 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1129 #else
1130 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1131 #endif // wxUSE_UNICODE
1132 #endif // GTK 1.x/2.x
1133 }
1134 }
1135
1136 void wxTextCtrl::Cut()
1137 {
1138 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1139
1140 #ifndef __WXGTK20__
1141 gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1142 #endif
1143 }
1144
1145 void wxTextCtrl::Copy()
1146 {
1147 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1148
1149 #ifndef __WXGTK20__
1150 gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1151 #endif
1152 }
1153
1154 void wxTextCtrl::Paste()
1155 {
1156 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1157
1158 #ifndef __WXGTK20__
1159 gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1160 #endif
1161 }
1162
1163 // Undo/redo
1164 void wxTextCtrl::Undo()
1165 {
1166 // TODO
1167 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1168 }
1169
1170 void wxTextCtrl::Redo()
1171 {
1172 // TODO
1173 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1174 }
1175
1176 bool wxTextCtrl::CanUndo() const
1177 {
1178 // TODO
1179 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1180 return FALSE;
1181 }
1182
1183 bool wxTextCtrl::CanRedo() const
1184 {
1185 // TODO
1186 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1187 return FALSE;
1188 }
1189
1190 // If the return values from and to are the same, there is no
1191 // selection.
1192 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1193 {
1194 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1195
1196 gint from = -1;
1197 gint to = -1;
1198 bool haveSelection = FALSE;
1199
1200 #ifdef __WXGTK20__
1201 if (m_windowStyle & wxTE_MULTILINE)
1202 {
1203 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1204 GtkTextIter ifrom, ito;
1205 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1206 {
1207 haveSelection = TRUE;
1208 from = gtk_text_iter_get_offset(&ifrom);
1209 to = gtk_text_iter_get_offset(&ito);
1210 }
1211 }
1212 else // not multi-line
1213 {
1214 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1215 &from, &to) )
1216 {
1217 haveSelection = TRUE;
1218 }
1219 }
1220 #else // not GTK2
1221 if ( (GTK_EDITABLE(m_text)->has_selection) )
1222 {
1223 haveSelection = TRUE;
1224 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1225 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1226 }
1227 #endif
1228
1229 if (! haveSelection )
1230 from = to = GetInsertionPoint();
1231
1232 if ( from > to )
1233 {
1234 // exchange them to be compatible with wxMSW
1235 gint tmp = from;
1236 from = to;
1237 to = tmp;
1238 }
1239
1240 if ( fromOut )
1241 *fromOut = from;
1242 if ( toOut )
1243 *toOut = to;
1244 }
1245
1246
1247 bool wxTextCtrl::IsEditable() const
1248 {
1249 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1250
1251 #ifdef __WXGTK20__
1252 if (m_windowStyle & wxTE_MULTILINE)
1253 {
1254 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1255 }
1256 else
1257 {
1258 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1259 }
1260 #else
1261 return GTK_EDITABLE(m_text)->editable;
1262 #endif
1263 }
1264
1265 bool wxTextCtrl::IsModified() const
1266 {
1267 return m_modified;
1268 }
1269
1270 void wxTextCtrl::Clear()
1271 {
1272 SetValue( wxT("") );
1273 }
1274
1275 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1276 {
1277 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1278
1279 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1280 {
1281 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1282 event.SetEventObject(this);
1283 event.SetString(GetValue());
1284 if (GetEventHandler()->ProcessEvent(event)) return;
1285 }
1286
1287 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1288 {
1289 // This will invoke the dialog default action, such
1290 // as the clicking the default button.
1291
1292 wxWindow *top_frame = m_parent;
1293 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1294 top_frame = top_frame->GetParent();
1295
1296 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1297 {
1298 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1299
1300 if (window->default_widget)
1301 {
1302 gtk_widget_activate (window->default_widget);
1303 return;
1304 }
1305 }
1306 }
1307
1308 key_event.Skip();
1309 }
1310
1311 GtkWidget* wxTextCtrl::GetConnectWidget()
1312 {
1313 return GTK_WIDGET(m_text);
1314 }
1315
1316 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1317 {
1318 if (m_windowStyle & wxTE_MULTILINE)
1319 {
1320 #ifdef __WXGTK20__
1321 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1322 #else
1323 return (window == GTK_TEXT(m_text)->text_area);
1324 #endif
1325 }
1326 else
1327 {
1328 return (window == GTK_ENTRY(m_text)->text_area);
1329 }
1330 }
1331
1332 // the font will change for subsequent text insertiongs
1333 bool wxTextCtrl::SetFont( const wxFont &font )
1334 {
1335 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1336
1337 if ( !wxTextCtrlBase::SetFont(font) )
1338 {
1339 // font didn't change, nothing to do
1340 return FALSE;
1341 }
1342
1343 if ( m_windowStyle & wxTE_MULTILINE )
1344 {
1345 m_updateFont = TRUE;
1346
1347 m_defaultStyle.SetFont(font);
1348
1349 ChangeFontGlobally();
1350 }
1351
1352 return TRUE;
1353 }
1354
1355 void wxTextCtrl::ChangeFontGlobally()
1356 {
1357 // this method is very inefficient and hence should be called as rarely as
1358 // possible!
1359 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1360 _T("shouldn't be called for single line controls") );
1361
1362 wxString value = GetValue();
1363 if ( !value.IsEmpty() )
1364 {
1365 m_updateFont = FALSE;
1366
1367 Clear();
1368 AppendText(value);
1369 }
1370 }
1371
1372 void wxTextCtrl::UpdateFontIfNeeded()
1373 {
1374 if ( m_updateFont )
1375 ChangeFontGlobally();
1376 }
1377
1378 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1379 {
1380 if ( !wxControl::SetForegroundColour(colour) )
1381 return FALSE;
1382
1383 // update default fg colour too
1384 m_defaultStyle.SetTextColour(colour);
1385
1386 return TRUE;
1387 }
1388
1389 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1390 {
1391 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1392
1393 if ( !wxControl::SetBackgroundColour( colour ) )
1394 return FALSE;
1395
1396 if (!m_widget->window)
1397 return FALSE;
1398
1399 wxColour sysbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
1400 if (sysbg.Red() == colour.Red() &&
1401 sysbg.Green() == colour.Green() &&
1402 sysbg.Blue() == colour.Blue())
1403 {
1404 return FALSE; // FIXME or TRUE?
1405 }
1406
1407 if (!m_backgroundColour.Ok())
1408 return FALSE;
1409
1410 if (m_windowStyle & wxTE_MULTILINE)
1411 {
1412 #ifndef __WXGTK20__
1413 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1414 if (!window)
1415 return FALSE;
1416 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1417 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1418 gdk_window_clear( window );
1419 #endif
1420 }
1421
1422 // change active background color too
1423 m_defaultStyle.SetBackgroundColour( colour );
1424
1425 return TRUE;
1426 }
1427
1428 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1429 {
1430 if ( m_windowStyle & wxTE_MULTILINE )
1431 {
1432 if ( style.IsDefault() )
1433 {
1434 // nothing to do
1435 return TRUE;
1436 }
1437 #ifdef __WXGTK20__
1438 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1439 gint l = gtk_text_buffer_get_char_count( text_buffer );
1440
1441 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1442 _T("invalid range in wxTextCtrl::SetStyle") );
1443
1444 GtkTextIter starti, endi;
1445 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1446 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1447
1448 // use the attributes from style which are set in it and fall back
1449 // first to the default style and then to the text control default
1450 // colours for the others
1451 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1452
1453 PangoFontDescription *font_description = attr.HasFont()
1454 ? attr.GetFont().GetNativeFontInfo()->description
1455 : NULL;
1456
1457 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1458 : NULL;
1459
1460 GdkColor *colBg = attr.HasBackgroundColour()
1461 ? attr.GetBackgroundColour().GetColor()
1462 : NULL;
1463
1464 GtkTextTag *tag;
1465 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1466 "foreground-gdk", colFg,
1467 "background-gdk", colBg, NULL );
1468 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1469
1470 return TRUE;
1471 #else
1472 // VERY dirty way to do that - removes the required text and re-adds it
1473 // with styling (FIXME)
1474
1475 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1476
1477 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1478 _T("invalid range in wxTextCtrl::SetStyle") );
1479
1480 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1481 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1482 wxString tmp(text,*wxConvCurrent);
1483 g_free( text );
1484
1485 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1486 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1487
1488 #if wxUSE_UNICODE
1489 wxWX2MBbuf buf = tmp.mbc_str();
1490 const char *txt = buf;
1491 size_t txtlen = strlen(buf);
1492 #else
1493 const char *txt = tmp;
1494 size_t txtlen = tmp.length();
1495 #endif
1496
1497 // use the attributes from style which are set in it and fall back
1498 // first to the default style and then to the text control default
1499 // colours for the others
1500 wxGtkTextInsert(m_text,
1501 wxTextAttr::Combine(style, m_defaultStyle, this),
1502 txt,
1503 txtlen);
1504
1505 /* does not seem to help under GTK+ 1.2 !!!
1506 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1507 SetInsertionPoint( old_pos );
1508 #endif
1509 return TRUE;
1510 }
1511 else // singe line
1512 {
1513 // cannot do this for GTK+'s Entry widget
1514 return FALSE;
1515 }
1516 }
1517
1518 void wxTextCtrl::ApplyWidgetStyle()
1519 {
1520 // if (m_windowStyle & wxTE_MULTILINE)
1521 // {
1522 // // how ?
1523 // }
1524 // else
1525 {
1526 SetWidgetStyle();
1527 gtk_widget_set_style( m_text, m_widgetStyle );
1528 }
1529 }
1530
1531 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1532 {
1533 Cut();
1534 }
1535
1536 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1537 {
1538 Copy();
1539 }
1540
1541 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1542 {
1543 Paste();
1544 }
1545
1546 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1547 {
1548 Undo();
1549 }
1550
1551 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1552 {
1553 Redo();
1554 }
1555
1556 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1557 {
1558 event.Enable( CanCut() );
1559 }
1560
1561 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1562 {
1563 event.Enable( CanCopy() );
1564 }
1565
1566 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1567 {
1568 event.Enable( CanPaste() );
1569 }
1570
1571 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1572 {
1573 event.Enable( CanUndo() );
1574 }
1575
1576 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1577 {
1578 event.Enable( CanRedo() );
1579 }
1580
1581 void wxTextCtrl::OnInternalIdle()
1582 {
1583 wxCursor cursor = m_cursor;
1584 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1585
1586 if (cursor.Ok())
1587 {
1588 #ifndef __WXGTK20__
1589 GdkWindow *window = (GdkWindow*) NULL;
1590 if (HasFlag(wxTE_MULTILINE))
1591 window = GTK_TEXT(m_text)->text_area;
1592 else
1593 window = GTK_ENTRY(m_text)->text_area;
1594
1595 if (window)
1596 gdk_window_set_cursor( window, cursor.GetCursor() );
1597
1598 if (!g_globalCursor.Ok())
1599 cursor = *wxSTANDARD_CURSOR;
1600
1601 window = m_widget->window;
1602 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1603 gdk_window_set_cursor( window, cursor.GetCursor() );
1604 #endif
1605 }
1606
1607 if (g_delayedFocus == this)
1608 {
1609 if (GTK_WIDGET_REALIZED(m_widget))
1610 {
1611 gtk_widget_grab_focus( m_widget );
1612 g_delayedFocus = NULL;
1613 }
1614 }
1615
1616 if (wxUpdateUIEvent::CanUpdate(this))
1617 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1618 }
1619
1620 wxSize wxTextCtrl::DoGetBestSize() const
1621 {
1622 // FIXME should be different for multi-line controls...
1623 wxSize ret( wxControl::DoGetBestSize() );
1624 return wxSize(80, ret.y);
1625 }
1626
1627 // ----------------------------------------------------------------------------
1628 // freeze/thaw
1629 // ----------------------------------------------------------------------------
1630
1631 void wxTextCtrl::Freeze()
1632 {
1633 #ifndef __WXGTK20__
1634 if ( HasFlag(wxTE_MULTILINE) )
1635 {
1636 gtk_text_freeze(GTK_TEXT(m_text));
1637 }
1638 #endif
1639 }
1640
1641 void wxTextCtrl::Thaw()
1642 {
1643 #ifndef __WXGTK20__
1644 if ( HasFlag(wxTE_MULTILINE) )
1645 {
1646 GTK_TEXT(m_text)->vadj->value = 0.0;
1647
1648 gtk_text_thaw(GTK_TEXT(m_text));
1649 }
1650 #endif
1651 }
1652
1653 // ----------------------------------------------------------------------------
1654 // scrolling
1655 // ----------------------------------------------------------------------------
1656
1657 GtkAdjustment *wxTextCtrl::GetVAdj() const
1658 {
1659 #ifdef __WXGTK20__
1660 return NULL;
1661 #else
1662 return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
1663 #endif
1664 }
1665
1666 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1667 {
1668 #ifndef __WXGTK20__
1669 float value = adj->value + diff;
1670
1671 if ( value < 0 )
1672 value = 0;
1673
1674 float upper = adj->upper - adj->page_size;
1675 if ( value > upper )
1676 value = upper;
1677
1678 // did we noticeably change the scroll position?
1679 if ( fabs(adj->value - value) < 0.2 )
1680 {
1681 // well, this is what Robert does in wxScrollBar, so it must be good...
1682 return FALSE;
1683 }
1684
1685 adj->value = value;
1686
1687 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1688
1689 #endif
1690 return TRUE;
1691 }
1692
1693 bool wxTextCtrl::ScrollLines(int lines)
1694 {
1695 #ifdef __WXGTK20__
1696 return FALSE;
1697 #else
1698 GtkAdjustment *adj = GetVAdj();
1699 if ( !adj )
1700 return FALSE;
1701
1702 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1703 static const int KEY_SCROLL_PIXELS = 10;
1704
1705 return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
1706 #endif
1707 }
1708
1709 bool wxTextCtrl::ScrollPages(int pages)
1710 {
1711 #ifdef __WXGTK20__
1712 return FALSE;
1713 #else
1714 GtkAdjustment *adj = GetVAdj();
1715 if ( !adj )
1716 return FALSE;
1717
1718 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1719 #endif
1720 }
1721
1722
1723 // static
1724 wxVisualAttributes
1725 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1726 {
1727 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1728 }
wxWidgets (Impactor)