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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 #ifndef __WXGTK20__
159 win->UpdateFontIfNeeded();
160 #endif // !__WXGTK20__
161
162 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
163 event.SetEventObject( win );
164 event.SetString( win->GetValue() );
165 win->GetEventHandler()->ProcessEvent( event );
166 }
167
168 //-----------------------------------------------------------------------------
169 // "changed" from vertical scrollbar
170 //-----------------------------------------------------------------------------
171
172 #ifndef __WXGTK20__
173 static void
174 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
175 {
176 if (!win->m_hasVMT) return;
177
178 if (g_isIdle)
179 wxapp_install_idle_handler();
180
181 win->CalculateScrollbar();
182 }
183 #endif
184
185 // ----------------------------------------------------------------------------
186 // redraw callback for multiline text
187 // ----------------------------------------------------------------------------
188
189 #ifndef __WXGTK20__
190
191 // redrawing a GtkText from inside a wxYield() call results in crashes (the
192 // text sample shows it in its "Add lines" command which shows wxProgressDialog
193 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
194 // don't do anything if we're inside wxYield()
195
196 extern bool wxIsInsideYield;
197
198 extern "C" {
199 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
200 }
201
202 static GtkDrawCallback gs_gtk_text_draw = NULL;
203
204 extern "C"
205 void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
206 {
207 if ( !wxIsInsideYield )
208 {
209 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
210 _T("infinite recursion in wxgtk_text_draw aborted") );
211
212 gs_gtk_text_draw(widget, rect);
213 }
214 }
215
216 #endif // __WXGTK20__
217
218 //-----------------------------------------------------------------------------
219 // wxTextCtrl
220 //-----------------------------------------------------------------------------
221
222 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
223
224 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
225 EVT_CHAR(wxTextCtrl::OnChar)
226
227 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
228 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
229 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
230 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
231 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
232
233 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
234 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
235 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
236 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
237 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
238 END_EVENT_TABLE()
239
240 void wxTextCtrl::Init()
241 {
242 m_ignoreNextUpdate =
243 m_modified = FALSE;
244 SetUpdateFont(FALSE);
245 m_text =
246 m_vScrollbar = (GtkWidget *)NULL;
247 }
248
249 wxTextCtrl::wxTextCtrl( wxWindow *parent,
250 wxWindowID id,
251 const wxString &value,
252 const wxPoint &pos,
253 const wxSize &size,
254 long style,
255 const wxValidator& validator,
256 const wxString &name )
257 {
258 Init();
259
260 Create( parent, id, value, pos, size, style, validator, name );
261 }
262
263 bool wxTextCtrl::Create( wxWindow *parent,
264 wxWindowID id,
265 const wxString &value,
266 const wxPoint &pos,
267 const wxSize &size,
268 long style,
269 const wxValidator& validator,
270 const wxString &name )
271 {
272 m_needParent = TRUE;
273 m_acceptsFocus = TRUE;
274
275 if (!PreCreation( parent, pos, size ) ||
276 !CreateBase( parent, id, pos, size, style, validator, name ))
277 {
278 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
279 return FALSE;
280 }
281
282
283 m_vScrollbarVisible = FALSE;
284
285 bool multi_line = (style & wxTE_MULTILINE) != 0;
286
287 #ifdef __WXGTK20__
288 GtkTextBuffer *buffer = NULL;
289 #endif
290
291 if (multi_line)
292 {
293 #ifdef __WXGTK20__
294 // Create view
295 m_text = gtk_text_view_new();
296
297 buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
298
299 // create scrolled window
300 m_widget = gtk_scrolled_window_new( NULL, NULL );
301 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
302 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
303
304 // Insert view into scrolled window
305 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
306
307 // Global settings which can be overridden by tags, I guess.
308 if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
309 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
310 else
311 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
312
313 if (!HasFlag(wxNO_BORDER))
314 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
315
316 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
317 #else
318 // create our control ...
319 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
320
321 // ... and put into the upper left hand corner of the table
322 bool bHasHScrollbar = FALSE;
323 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
324 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
325 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
326 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
327 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
328 0, 0);
329
330 // always wrap words
331 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
332
333 // finally, put the vertical scrollbar in the upper right corner
334 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
335 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
336 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
337 GTK_FILL,
338 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
339 0, 0);
340 #endif
341 }
342 else
343 {
344 // a single-line text control: no need for scrollbars
345 m_widget =
346 m_text = gtk_entry_new();
347 }
348
349 m_parent->DoAddChild( this );
350
351 m_focusWidget = m_text;
352
353 PostCreation(size);
354
355 if (multi_line)
356 gtk_widget_show(m_text);
357
358 #ifndef __WXGTK20__
359 if (multi_line)
360 {
361 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
362 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
363
364 // only initialize gs_gtk_text_draw once, starting from the next the
365 // klass::draw will already be wxgtk_text_draw
366 if ( !gs_gtk_text_draw )
367 {
368 GtkDrawCallback&
369 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
370
371 gs_gtk_text_draw = draw;
372
373 draw = wxgtk_text_draw;
374 }
375 }
376 #endif // GTK+ 1.x
377
378 if (!value.IsEmpty())
379 {
380 #ifdef __WXGTK20__
381 SetValue( value );
382 #else
383
384 #if !GTK_CHECK_VERSION(1, 2, 0)
385 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
386 // gtk_editable_insert_text()
387 gtk_widget_realize(m_text);
388 #endif // GTK 1.0
389
390 gint tmp = 0;
391 #if wxUSE_UNICODE
392 wxWX2MBbuf val = value.mbc_str();
393 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
394 #else
395 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
396 #endif
397
398 if (multi_line)
399 {
400 // Bring editable's cursor uptodate. Bug in GTK.
401 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
402 }
403
404 #endif
405 }
406
407 if (style & wxTE_PASSWORD)
408 {
409 if (!multi_line)
410 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
411 }
412
413 if (style & wxTE_READONLY)
414 {
415 if (!multi_line)
416 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
417 #ifdef __WXGTK20__
418 else
419 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
420 #else
421 }
422 else
423 {
424 if (multi_line)
425 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
426 #endif
427 }
428
429 #ifdef __WXGTK20__
430 if (multi_line)
431 {
432 if (style & wxTE_RIGHT)
433 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
434 else if (style & wxTE_CENTRE)
435 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
436 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
437 }
438 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
439 #if GTK_CHECK_VERSION(2, 3, 5)
440 else
441 {
442 if (style & wxTE_RIGHT)
443 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
444 else if (style & wxTE_CENTRE)
445 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
446 }
447 #endif // gtk+-2.3.5
448 #endif // __WXGTK20__
449
450 // We want to be notified about text changes.
451 #ifdef __WXGTK20__
452 if (multi_line)
453 {
454 g_signal_connect( G_OBJECT(buffer), "changed",
455 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
456 }
457 else
458 #endif
459
460 {
461 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
462 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
463 }
464
465 m_cursor = wxCursor( wxCURSOR_IBEAM );
466
467 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
468 SetDefaultStyle( attrDef );
469
470 return TRUE;
471 }
472
473
474 void wxTextCtrl::CalculateScrollbar()
475 {
476 #ifndef __WXGTK20__
477 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
478
479 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
480
481 if (adj->upper - adj->page_size < 0.8)
482 {
483 if (m_vScrollbarVisible)
484 {
485 gtk_widget_hide( m_vScrollbar );
486 m_vScrollbarVisible = FALSE;
487 }
488 }
489 else
490 {
491 if (!m_vScrollbarVisible)
492 {
493 gtk_widget_show( m_vScrollbar );
494 m_vScrollbarVisible = TRUE;
495 }
496 }
497 #endif
498 }
499
500 wxString wxTextCtrl::GetValue() const
501 {
502 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
503
504 wxString tmp;
505 if (m_windowStyle & wxTE_MULTILINE)
506 {
507 #ifdef __WXGTK20__
508 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
509
510 GtkTextIter start;
511 gtk_text_buffer_get_start_iter( text_buffer, &start );
512 GtkTextIter end;
513 gtk_text_buffer_get_end_iter( text_buffer, &end );
514 gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
515
516 #if wxUSE_UNICODE
517 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
518 #else
519 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
520 #endif
521 tmp = buffer;
522
523 g_free( text );
524 #else
525 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
526 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
527 tmp = text;
528 g_free( text );
529 #endif
530 }
531 else
532 {
533 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
534 }
535
536 return tmp;
537 }
538
539 void wxTextCtrl::SetValue( const wxString &value )
540 {
541 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
542
543 if (m_windowStyle & wxTE_MULTILINE)
544 {
545 #ifdef __WXGTK20__
546
547 #if wxUSE_UNICODE
548 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
549 #else
550 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
551 #endif
552 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
553 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
554
555 #else
556 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
557 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
558 len = 0;
559 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
560 #endif
561 }
562 else
563 {
564 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
565 }
566
567 // GRG, Jun/2000: Changed this after a lot of discussion in
568 // the lists. wxWidgets 2.2 will have a set of flags to
569 // customize this behaviour.
570 SetInsertionPoint(0);
571
572 m_modified = FALSE;
573 }
574
575 void wxTextCtrl::WriteText( const wxString &text )
576 {
577 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
578
579 if ( text.empty() )
580 return;
581
582 // gtk_text_changed_callback() will set m_modified to true but m_modified
583 // shouldn't be changed by the program writing to the text control itself,
584 // so save the old value and restore when we're done
585 bool oldModified = m_modified;
586
587 if ( m_windowStyle & wxTE_MULTILINE )
588 {
589 #ifdef __WXGTK20__
590
591 #if wxUSE_UNICODE
592 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
593 #else
594 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
595 #endif
596 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
597
598 // TODO: Call whatever is needed to delete the selection.
599 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
600
601 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
602 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
603 if ( adj->value == adj->upper - adj->page_size )
604 {
605 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
606 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
607 }
608 #else // GTK 1.x
609 // After cursor movements, gtk_text_get_point() is wrong by one.
610 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
611
612 // always use m_defaultStyle, even if it is empty as otherwise
613 // resetting the style and appending some more text wouldn't work: if
614 // we don't specify the style explicitly, the old style would be used
615 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
616 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
617
618 // we called wxGtkTextInsert with correct font, no need to do anything
619 // in UpdateFontIfNeeded() any longer
620 if ( !text.empty() )
621 {
622 SetUpdateFont(FALSE);
623 }
624
625 // Bring editable's cursor back uptodate.
626 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
627 #endif // GTK 1.x/2.0
628 }
629 else // single line
630 {
631 // First remove the selection if there is one
632 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
633
634 // This moves the cursor pos to behind the inserted text.
635 gint len = GET_EDITABLE_POS(m_text);
636
637 #ifdef __WXGTK20__
638
639 #if wxUSE_UNICODE
640 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
641 #else
642 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
643 #endif
644 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
645
646 #else
647 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
648 #endif
649
650 // Bring entry's cursor uptodate.
651 gtk_entry_set_position( GTK_ENTRY(m_text), len );
652 }
653
654 m_modified = oldModified;
655 }
656
657 void wxTextCtrl::AppendText( const wxString &text )
658 {
659 SetInsertionPointEnd();
660 WriteText( text );
661 }
662
663 wxString wxTextCtrl::GetLineText( long lineNo ) const
664 {
665 if (m_windowStyle & wxTE_MULTILINE)
666 {
667 #ifndef __WXGTK20__
668 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
669 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
670
671 if (text)
672 {
673 wxString buf(wxT(""));
674 long i;
675 int currentLine = 0;
676 for (i = 0; currentLine != lineNo && text[i]; i++ )
677 if (text[i] == '\n')
678 currentLine++;
679 // Now get the text
680 int j;
681 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
682 buf += text[i];
683
684 g_free( text );
685 return buf;
686 }
687 else
688 {
689 return wxEmptyString;
690 }
691 #else
692 GtkTextBuffer *text_buffer;
693 text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
694 GtkTextIter line;
695 gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
696 GtkTextIter end;
697 gtk_text_buffer_get_end_iter(text_buffer,&end );
698 gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
699 wxString result(wxGTK_CONV_BACK(text));
700 g_free(text);
701 return result.BeforeFirst(wxT('\n'));
702 #endif
703 }
704 else
705 {
706 if (lineNo == 0) return GetValue();
707 return wxEmptyString;
708 }
709 }
710
711 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
712 {
713 /* If you implement this, don't forget to update the documentation!
714 * (file docs/latex/wx/text.tex) */
715 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
716 }
717
718 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
719 {
720 if ( m_windowStyle & wxTE_MULTILINE )
721 {
722 wxString text = GetValue();
723
724 // cast to prevent warning. But pos really should've been unsigned.
725 if( (unsigned long)pos > text.Len() )
726 return FALSE;
727
728 *x=0; // First Col
729 *y=0; // First Line
730
731 const wxChar* stop = text.c_str() + pos;
732 for ( const wxChar *p = text.c_str(); p < stop; p++ )
733 {
734 if (*p == wxT('\n'))
735 {
736 (*y)++;
737 *x=0;
738 }
739 else
740 (*x)++;
741 }
742 }
743 else // single line control
744 {
745 if ( pos <= GTK_ENTRY(m_text)->text_length )
746 {
747 *y = 0;
748 *x = pos;
749 }
750 else
751 {
752 // index out of bounds
753 return FALSE;
754 }
755 }
756
757 return TRUE;
758 }
759
760 long wxTextCtrl::XYToPosition(long x, long y ) const
761 {
762 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
763
764 long pos=0;
765 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
766
767 pos += x;
768 return pos;
769 }
770
771 int wxTextCtrl::GetLineLength(long lineNo) const
772 {
773 wxString str = GetLineText (lineNo);
774 return (int) str.Length();
775 }
776
777 int wxTextCtrl::GetNumberOfLines() const
778 {
779 if (m_windowStyle & wxTE_MULTILINE)
780 {
781 #ifdef __WXGTK20__
782 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
783
784 return gtk_text_buffer_get_line_count( buffer );
785 #else
786 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
787 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
788
789 if (text)
790 {
791 int currentLine = 0;
792 for (int i = 0; i < len; i++ )
793 {
794 if (text[i] == '\n')
795 currentLine++;
796 }
797 g_free( text );
798
799 // currentLine is 0 based, add 1 to get number of lines
800 return currentLine + 1;
801 }
802 else
803 {
804 return 0;
805 }
806 #endif
807 }
808 else
809 {
810 return 1;
811 }
812 }
813
814 void wxTextCtrl::SetInsertionPoint( long pos )
815 {
816 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
817
818 if (m_windowStyle & wxTE_MULTILINE)
819 {
820 #ifdef __WXGTK20__
821 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
822 GtkTextIter iter;
823 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
824 gtk_text_buffer_place_cursor( text_buffer, &iter );
825 #else
826 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
827 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
828
829 /* we fake a set_point by inserting and deleting. as the user
830 isn't supposed to get to know about this non-sense, we
831 disconnect so that no events are sent to the user program. */
832
833 gint tmp = (gint)pos;
834 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
835 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
836
837 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
838 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
839
840 // bring editable's cursor uptodate. Bug in GTK.
841 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
842 #endif
843 }
844 else
845 {
846 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
847
848 // Bring editable's cursor uptodate. Bug in GTK.
849 SET_EDITABLE_POS(m_text, (guint32)pos);
850 }
851 }
852
853 void wxTextCtrl::SetInsertionPointEnd()
854 {
855 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
856
857 if (m_windowStyle & wxTE_MULTILINE)
858 {
859 #ifdef __WXGTK20__
860 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
861 GtkTextIter end;
862 gtk_text_buffer_get_end_iter( text_buffer, &end );
863 gtk_text_buffer_place_cursor( text_buffer, &end );
864 #else
865 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
866 #endif
867 }
868 else
869 {
870 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
871 }
872 }
873
874 void wxTextCtrl::SetEditable( bool editable )
875 {
876 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
877
878 if (m_windowStyle & wxTE_MULTILINE)
879 {
880 #ifdef __WXGTK20__
881 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
882 #else
883 gtk_text_set_editable( GTK_TEXT(m_text), editable );
884 #endif
885 }
886 else
887 {
888 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
889 }
890 }
891
892 bool wxTextCtrl::Enable( bool enable )
893 {
894 if (!wxWindowBase::Enable(enable))
895 {
896 // nothing to do
897 return FALSE;
898 }
899
900 if (m_windowStyle & wxTE_MULTILINE)
901 {
902 #ifdef __WXGTK20__
903 SetEditable( enable );
904 #else
905 gtk_text_set_editable( GTK_TEXT(m_text), enable );
906 OnParentEnable(enable);
907 #endif
908 }
909 else
910 {
911 gtk_widget_set_sensitive( m_text, enable );
912 }
913
914 return TRUE;
915 }
916
917 // wxGTK-specific: called recursively by Enable,
918 // to give widgets an oppprtunity to correct their colours after they
919 // have been changed by Enable
920 void wxTextCtrl::OnParentEnable( bool enable )
921 {
922 // If we have a custom background colour, we use this colour in both
923 // disabled and enabled mode, or we end up with a different colour under the
924 // text.
925 wxColour oldColour = GetBackgroundColour();
926 if (oldColour.Ok())
927 {
928 // Need to set twice or it'll optimize the useful stuff out
929 if (oldColour == * wxWHITE)
930 SetBackgroundColour(*wxBLACK);
931 else
932 SetBackgroundColour(*wxWHITE);
933 SetBackgroundColour(oldColour);
934 }
935 }
936
937 void wxTextCtrl::MarkDirty()
938 {
939 m_modified = TRUE;
940 }
941
942 void wxTextCtrl::DiscardEdits()
943 {
944 m_modified = FALSE;
945 }
946
947 // ----------------------------------------------------------------------------
948 // max text length support
949 // ----------------------------------------------------------------------------
950
951 void wxTextCtrl::IgnoreNextTextUpdate()
952 {
953 m_ignoreNextUpdate = TRUE;
954 }
955
956 bool wxTextCtrl::IgnoreTextUpdate()
957 {
958 if ( m_ignoreNextUpdate )
959 {
960 m_ignoreNextUpdate = FALSE;
961
962 return TRUE;
963 }
964
965 return FALSE;
966 }
967
968 void wxTextCtrl::SetMaxLength(unsigned long len)
969 {
970 if ( !HasFlag(wxTE_MULTILINE) )
971 {
972 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
973
974 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
975 // we had tried to enter more text than allowed by max text length and
976 // the text wasn't really changed
977 //
978 // to detect this and generate TEXT_MAXLEN event instead of
979 // TEXT_CHANGED one in this case we also catch "insert_text" signal
980 //
981 // when max len is set to 0 we disconnect our handler as it means that
982 // we shouldn't check anything any more
983 if ( len )
984 {
985 gtk_signal_connect( GTK_OBJECT(m_text),
986 "insert_text",
987 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
988 (gpointer)this);
989 }
990 else // no checking
991 {
992 gtk_signal_disconnect_by_func
993 (
994 GTK_OBJECT(m_text),
995 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
996 (gpointer)this
997 );
998 }
999 }
1000 }
1001
1002 void wxTextCtrl::SetSelection( long from, long to )
1003 {
1004 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1005
1006 if (from == -1 && to == -1)
1007 {
1008 from = 0;
1009 to = GetValue().Length();
1010 }
1011
1012 #ifndef __WXGTK20__
1013 if ( (m_windowStyle & wxTE_MULTILINE) &&
1014 !GTK_TEXT(m_text)->line_start_cache )
1015 {
1016 // tell the programmer that it didn't work
1017 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1018 return;
1019 }
1020 #endif
1021
1022 if (m_windowStyle & wxTE_MULTILINE)
1023 {
1024 #ifdef __WXGTK20__
1025 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1026
1027 GtkTextIter fromi, toi;
1028 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1029 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1030
1031 gtk_text_buffer_place_cursor( buf, &toi );
1032 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1033 #else
1034 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1035 #endif
1036 }
1037 else
1038 {
1039 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1040 }
1041 }
1042
1043 void wxTextCtrl::ShowPosition( long pos )
1044 {
1045 if (m_windowStyle & wxTE_MULTILINE)
1046 {
1047 #ifdef __WXGTK20__
1048 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1049 GtkTextIter iter;
1050 gtk_text_buffer_get_start_iter( buf, &iter );
1051 gtk_text_iter_set_offset( &iter, pos );
1052 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1053 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1054 #else // GTK 1.x
1055 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1056 float totalLines = (float) GetNumberOfLines();
1057 long posX;
1058 long posY;
1059 PositionToXY(pos, &posX, &posY);
1060 float posLine = (float) posY;
1061 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1062 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1063 #endif // GTK 1.x/2.x
1064 }
1065 }
1066
1067 #ifdef __WXGTK20__
1068
1069 wxTextCtrlHitTestResult
1070 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1071 {
1072 if ( !IsMultiLine() )
1073 {
1074 // not supported
1075 return wxTE_HT_UNKNOWN;
1076 }
1077
1078 int x, y;
1079 gtk_text_view_window_to_buffer_coords
1080 (
1081 GTK_TEXT_VIEW(m_text),
1082 GTK_TEXT_WINDOW_TEXT,
1083 pt.x, pt.y,
1084 &x, &y
1085 );
1086
1087 GtkTextIter iter;
1088 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1089 if ( pos )
1090 *pos = gtk_text_iter_get_offset(&iter);
1091
1092 return wxTE_HT_ON_TEXT;
1093 }
1094
1095 #endif // __WXGTK20__
1096
1097 long wxTextCtrl::GetInsertionPoint() const
1098 {
1099 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1100
1101 #ifdef __WXGTK20__
1102 if (m_windowStyle & wxTE_MULTILINE)
1103 {
1104 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1105
1106 // There is no direct accessor for the cursor, but
1107 // internally, the cursor is the "mark" called
1108 // "insert" in the text view's btree structure.
1109
1110 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1111 GtkTextIter cursor;
1112 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1113
1114 return gtk_text_iter_get_offset( &cursor );
1115 }
1116 else
1117 #endif
1118 {
1119 return (long) GET_EDITABLE_POS(m_text);
1120 }
1121 }
1122
1123 long wxTextCtrl::GetLastPosition() const
1124 {
1125 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1126
1127 int pos = 0;
1128
1129 if (m_windowStyle & wxTE_MULTILINE)
1130 {
1131 #ifdef __WXGTK20__
1132 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1133 GtkTextIter end;
1134 gtk_text_buffer_get_end_iter( text_buffer, &end );
1135
1136 pos = gtk_text_iter_get_offset( &end );
1137 #else
1138 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1139 #endif
1140 }
1141 else
1142 {
1143 pos = GTK_ENTRY(m_text)->text_length;
1144 }
1145
1146 return (long)pos;
1147 }
1148
1149 void wxTextCtrl::Remove( long from, long to )
1150 {
1151 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1152
1153 #ifdef __WXGTK20__
1154 if (m_windowStyle & wxTE_MULTILINE)
1155 {
1156 GtkTextBuffer *
1157 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1158
1159 GtkTextIter fromi, toi;
1160 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1161 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1162
1163 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1164 }
1165 else // single line
1166 #endif
1167 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1168 }
1169
1170 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1171 {
1172 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1173
1174 Remove( from, to );
1175
1176 if (!value.IsEmpty())
1177 {
1178 #ifdef __WXGTK20__
1179 SetInsertionPoint( from );
1180 WriteText( value );
1181 #else // GTK 1.x
1182 gint pos = (gint)from;
1183 #if wxUSE_UNICODE
1184 wxWX2MBbuf buf = value.mbc_str();
1185 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1186 #else
1187 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1188 #endif // wxUSE_UNICODE
1189 #endif // GTK 1.x/2.x
1190 }
1191 }
1192
1193 void wxTextCtrl::Cut()
1194 {
1195 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1196
1197 #ifdef __WXGTK20__
1198 if (m_windowStyle & wxTE_MULTILINE)
1199 g_signal_emit_by_name(m_text, "cut-clipboard");
1200 else
1201 #endif
1202 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1203 }
1204
1205 void wxTextCtrl::Copy()
1206 {
1207 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1208
1209 #ifdef __WXGTK20__
1210 if (m_windowStyle & wxTE_MULTILINE)
1211 g_signal_emit_by_name(m_text, "copy-clipboard");
1212 else
1213 #endif
1214 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1215 }
1216
1217 void wxTextCtrl::Paste()
1218 {
1219 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1220
1221 #ifdef __WXGTK20__
1222 if (m_windowStyle & wxTE_MULTILINE)
1223 g_signal_emit_by_name(m_text, "paste-clipboard");
1224 else
1225 #endif
1226 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1227 }
1228
1229 // Undo/redo
1230 void wxTextCtrl::Undo()
1231 {
1232 // TODO
1233 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1234 }
1235
1236 void wxTextCtrl::Redo()
1237 {
1238 // TODO
1239 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1240 }
1241
1242 bool wxTextCtrl::CanUndo() const
1243 {
1244 // TODO
1245 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1246 return FALSE;
1247 }
1248
1249 bool wxTextCtrl::CanRedo() const
1250 {
1251 // TODO
1252 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1253 return FALSE;
1254 }
1255
1256 // If the return values from and to are the same, there is no
1257 // selection.
1258 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1259 {
1260 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1261
1262 gint from = -1;
1263 gint to = -1;
1264 bool haveSelection = FALSE;
1265
1266 #ifdef __WXGTK20__
1267 if (m_windowStyle & wxTE_MULTILINE)
1268 {
1269 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1270 GtkTextIter ifrom, ito;
1271 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1272 {
1273 haveSelection = TRUE;
1274 from = gtk_text_iter_get_offset(&ifrom);
1275 to = gtk_text_iter_get_offset(&ito);
1276 }
1277 }
1278 else // not multi-line
1279 {
1280 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1281 &from, &to) )
1282 {
1283 haveSelection = TRUE;
1284 }
1285 }
1286 #else // not GTK2
1287 if ( (GTK_EDITABLE(m_text)->has_selection) )
1288 {
1289 haveSelection = TRUE;
1290 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1291 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1292 }
1293 #endif
1294
1295 if (! haveSelection )
1296 from = to = GetInsertionPoint();
1297
1298 if ( from > to )
1299 {
1300 // exchange them to be compatible with wxMSW
1301 gint tmp = from;
1302 from = to;
1303 to = tmp;
1304 }
1305
1306 if ( fromOut )
1307 *fromOut = from;
1308 if ( toOut )
1309 *toOut = to;
1310 }
1311
1312
1313 bool wxTextCtrl::IsEditable() const
1314 {
1315 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1316
1317 #ifdef __WXGTK20__
1318 if (m_windowStyle & wxTE_MULTILINE)
1319 {
1320 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1321 }
1322 else
1323 {
1324 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1325 }
1326 #else
1327 return GTK_EDITABLE(m_text)->editable;
1328 #endif
1329 }
1330
1331 bool wxTextCtrl::IsModified() const
1332 {
1333 return m_modified;
1334 }
1335
1336 void wxTextCtrl::Clear()
1337 {
1338 SetValue( wxT("") );
1339 }
1340
1341 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1342 {
1343 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1344
1345 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1346 {
1347 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1348 event.SetEventObject(this);
1349 event.SetString(GetValue());
1350 if (GetEventHandler()->ProcessEvent(event)) return;
1351 }
1352
1353 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1354 {
1355 // This will invoke the dialog default action, such
1356 // as the clicking the default button.
1357
1358 wxWindow *top_frame = m_parent;
1359 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1360 top_frame = top_frame->GetParent();
1361
1362 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1363 {
1364 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1365
1366 if (window->default_widget)
1367 {
1368 gtk_widget_activate (window->default_widget);
1369 return;
1370 }
1371 }
1372 }
1373
1374 key_event.Skip();
1375 }
1376
1377 GtkWidget* wxTextCtrl::GetConnectWidget()
1378 {
1379 return GTK_WIDGET(m_text);
1380 }
1381
1382 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1383 {
1384 if (m_windowStyle & wxTE_MULTILINE)
1385 {
1386 #ifdef __WXGTK20__
1387 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1388 #else
1389 return (window == GTK_TEXT(m_text)->text_area);
1390 #endif
1391 }
1392 else
1393 {
1394 return (window == GTK_ENTRY(m_text)->text_area);
1395 }
1396 }
1397
1398 // the font will change for subsequent text insertiongs
1399 bool wxTextCtrl::SetFont( const wxFont &font )
1400 {
1401 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1402
1403 if ( !wxTextCtrlBase::SetFont(font) )
1404 {
1405 // font didn't change, nothing to do
1406 return FALSE;
1407 }
1408
1409 if ( m_windowStyle & wxTE_MULTILINE )
1410 {
1411 SetUpdateFont(TRUE);
1412
1413 m_defaultStyle.SetFont(font);
1414
1415 ChangeFontGlobally();
1416 }
1417
1418 return TRUE;
1419 }
1420
1421 void wxTextCtrl::ChangeFontGlobally()
1422 {
1423 // this method is very inefficient and hence should be called as rarely as
1424 // possible!
1425 //
1426 // TODO: it can be implemented much more efficiently for GTK2
1427 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE)
1428 #ifndef __WXGTK20__
1429 && m_updateFont
1430 #endif // GTK+ 1.x
1431 ,
1432 _T("shouldn't be called for single line controls") );
1433
1434 wxString value = GetValue();
1435 if ( !value.IsEmpty() )
1436 {
1437 SetUpdateFont(FALSE);
1438
1439 Clear();
1440 AppendText(value);
1441 }
1442 }
1443
1444 #ifndef __WXGTK20__
1445
1446 void wxTextCtrl::UpdateFontIfNeeded()
1447 {
1448 if ( m_updateFont )
1449 ChangeFontGlobally();
1450 }
1451
1452 #endif // GTK+ 1.x
1453
1454 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1455 {
1456 if ( !wxControl::SetForegroundColour(colour) )
1457 return FALSE;
1458
1459 // update default fg colour too
1460 m_defaultStyle.SetTextColour(colour);
1461
1462 return TRUE;
1463 }
1464
1465 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1466 {
1467 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1468
1469 if ( !wxControl::SetBackgroundColour( colour ) )
1470 return FALSE;
1471
1472 if (!m_widget->window)
1473 return FALSE;
1474
1475 if (!m_backgroundColour.Ok())
1476 return FALSE;
1477
1478 if (m_windowStyle & wxTE_MULTILINE)
1479 {
1480 #ifndef __WXGTK20__
1481 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1482 if (!window)
1483 return FALSE;
1484 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1485 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1486 gdk_window_clear( window );
1487 #endif
1488 }
1489
1490 // change active background color too
1491 m_defaultStyle.SetBackgroundColour( colour );
1492
1493 return TRUE;
1494 }
1495
1496 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1497 {
1498 if ( m_windowStyle & wxTE_MULTILINE )
1499 {
1500 if ( style.IsDefault() )
1501 {
1502 // nothing to do
1503 return TRUE;
1504 }
1505 #ifdef __WXGTK20__
1506 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1507 gint l = gtk_text_buffer_get_char_count( text_buffer );
1508
1509 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1510 _T("invalid range in wxTextCtrl::SetStyle") );
1511
1512 GtkTextIter starti, endi;
1513 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1514 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1515
1516 // use the attributes from style which are set in it and fall back
1517 // first to the default style and then to the text control default
1518 // colours for the others
1519 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1520
1521 PangoFontDescription *font_description = attr.HasFont()
1522 ? attr.GetFont().GetNativeFontInfo()->description
1523 : NULL;
1524
1525 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1526 : NULL;
1527
1528 GdkColor *colBg = attr.HasBackgroundColour()
1529 ? attr.GetBackgroundColour().GetColor()
1530 : NULL;
1531
1532 GtkTextTag *tag;
1533 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1534 "foreground-gdk", colFg,
1535 "background-gdk", colBg, NULL );
1536 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1537
1538 return TRUE;
1539 #else
1540 // VERY dirty way to do that - removes the required text and re-adds it
1541 // with styling (FIXME)
1542
1543 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1544
1545 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1546 _T("invalid range in wxTextCtrl::SetStyle") );
1547
1548 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1549 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1550 wxString tmp(text,*wxConvCurrent);
1551 g_free( text );
1552
1553 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1554 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1555
1556 #if wxUSE_UNICODE
1557 wxWX2MBbuf buf = tmp.mbc_str();
1558 const char *txt = buf;
1559 size_t txtlen = strlen(buf);
1560 #else
1561 const char *txt = tmp;
1562 size_t txtlen = tmp.length();
1563 #endif
1564
1565 // use the attributes from style which are set in it and fall back
1566 // first to the default style and then to the text control default
1567 // colours for the others
1568 wxGtkTextInsert(m_text,
1569 wxTextAttr::Combine(style, m_defaultStyle, this),
1570 txt,
1571 txtlen);
1572
1573 /* does not seem to help under GTK+ 1.2 !!!
1574 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1575 SetInsertionPoint( old_pos );
1576 #endif
1577 return TRUE;
1578 }
1579 else // singe line
1580 {
1581 // cannot do this for GTK+'s Entry widget
1582 return FALSE;
1583 }
1584 }
1585
1586 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1587 {
1588 gtk_widget_modify_style(m_text, style);
1589 }
1590
1591 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1592 {
1593 Cut();
1594 }
1595
1596 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1597 {
1598 Copy();
1599 }
1600
1601 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1602 {
1603 Paste();
1604 }
1605
1606 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1607 {
1608 Undo();
1609 }
1610
1611 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1612 {
1613 Redo();
1614 }
1615
1616 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1617 {
1618 event.Enable( CanCut() );
1619 }
1620
1621 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1622 {
1623 event.Enable( CanCopy() );
1624 }
1625
1626 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1627 {
1628 event.Enable( CanPaste() );
1629 }
1630
1631 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1632 {
1633 event.Enable( CanUndo() );
1634 }
1635
1636 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1637 {
1638 event.Enable( CanRedo() );
1639 }
1640
1641 void wxTextCtrl::OnInternalIdle()
1642 {
1643 wxCursor cursor = m_cursor;
1644 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1645
1646 if (cursor.Ok())
1647 {
1648 #ifndef __WXGTK20__
1649 GdkWindow *window = (GdkWindow*) NULL;
1650 if (HasFlag(wxTE_MULTILINE))
1651 window = GTK_TEXT(m_text)->text_area;
1652 else
1653 window = GTK_ENTRY(m_text)->text_area;
1654
1655 if (window)
1656 gdk_window_set_cursor( window, cursor.GetCursor() );
1657
1658 if (!g_globalCursor.Ok())
1659 cursor = *wxSTANDARD_CURSOR;
1660
1661 window = m_widget->window;
1662 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1663 gdk_window_set_cursor( window, cursor.GetCursor() );
1664 #endif
1665 }
1666
1667 if (g_delayedFocus == this)
1668 {
1669 if (GTK_WIDGET_REALIZED(m_widget))
1670 {
1671 gtk_widget_grab_focus( m_widget );
1672 g_delayedFocus = NULL;
1673 }
1674 }
1675
1676 if (wxUpdateUIEvent::CanUpdate(this))
1677 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1678 }
1679
1680 wxSize wxTextCtrl::DoGetBestSize() const
1681 {
1682 // FIXME should be different for multi-line controls...
1683 wxSize ret( wxControl::DoGetBestSize() );
1684 wxSize best(80, ret.y);
1685 CacheBestSize(best);
1686 return best;
1687 }
1688
1689 // ----------------------------------------------------------------------------
1690 // freeze/thaw
1691 // ----------------------------------------------------------------------------
1692
1693 void wxTextCtrl::Freeze()
1694 {
1695 #ifndef __WXGTK20__
1696 if ( HasFlag(wxTE_MULTILINE) )
1697 {
1698 gtk_text_freeze(GTK_TEXT(m_text));
1699 }
1700 #endif
1701 }
1702
1703 void wxTextCtrl::Thaw()
1704 {
1705 #ifndef __WXGTK20__
1706 if ( HasFlag(wxTE_MULTILINE) )
1707 {
1708 GTK_TEXT(m_text)->vadj->value = 0.0;
1709
1710 gtk_text_thaw(GTK_TEXT(m_text));
1711 }
1712 #endif
1713 }
1714
1715 // ----------------------------------------------------------------------------
1716 // scrolling
1717 // ----------------------------------------------------------------------------
1718
1719 GtkAdjustment *wxTextCtrl::GetVAdj() const
1720 {
1721 #ifdef __WXGTK20__
1722 return NULL;
1723 #else
1724 return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
1725 #endif
1726 }
1727
1728 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1729 {
1730 #ifndef __WXGTK20__
1731 float value = adj->value + diff;
1732
1733 if ( value < 0 )
1734 value = 0;
1735
1736 float upper = adj->upper - adj->page_size;
1737 if ( value > upper )
1738 value = upper;
1739
1740 // did we noticeably change the scroll position?
1741 if ( fabs(adj->value - value) < 0.2 )
1742 {
1743 // well, this is what Robert does in wxScrollBar, so it must be good...
1744 return FALSE;
1745 }
1746
1747 adj->value = value;
1748
1749 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1750
1751 #endif
1752 return TRUE;
1753 }
1754
1755 bool wxTextCtrl::ScrollLines(int lines)
1756 {
1757 #ifdef __WXGTK20__
1758 return FALSE;
1759 #else
1760 GtkAdjustment *adj = GetVAdj();
1761 if ( !adj )
1762 return FALSE;
1763
1764 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1765 static const int KEY_SCROLL_PIXELS = 10;
1766
1767 return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
1768 #endif
1769 }
1770
1771 bool wxTextCtrl::ScrollPages(int pages)
1772 {
1773 #ifdef __WXGTK20__
1774 return FALSE;
1775 #else
1776 GtkAdjustment *adj = GetVAdj();
1777 if ( !adj )
1778 return FALSE;
1779
1780 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1781 #endif
1782 }
1783
1784
1785 // static
1786 wxVisualAttributes
1787 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1788 {
1789 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1790 }
wxWidgets (Impactor)