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[wxWidgets.git] / src / gtk / textctrl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: textctrl.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11 #pragma implementation "textctrl.h"
12 #endif
13
14 // For compilers that support precompilation, includes "wx.h".
15 #include "wx/wxprec.h"
16
17 #include "wx/textctrl.h"
18 #include "wx/utils.h"
19 #include "wx/intl.h"
20 #include "wx/log.h"
21 #include "wx/settings.h"
22 #include "wx/panel.h"
23 #include "wx/strconv.h"
24 #include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
25
26 #include <sys/types.h>
27 #include <sys/stat.h>
28 #include <ctype.h>
29 #include <math.h> // for fabs
30
31 #include "wx/gtk/private.h"
32 #include <gdk/gdkkeysyms.h>
33
34 //-----------------------------------------------------------------------------
35 // idle system
36 //-----------------------------------------------------------------------------
37
38 extern void wxapp_install_idle_handler();
39 extern bool g_isIdle;
40
41 //-----------------------------------------------------------------------------
42 // data
43 //-----------------------------------------------------------------------------
44
45 extern bool g_blockEventsOnDrag;
46 extern wxCursor g_globalCursor;
47 extern wxWindowGTK *g_delayedFocus;
48
49 // ----------------------------------------------------------------------------
50 // helpers
51 // ----------------------------------------------------------------------------
52
53 #ifdef __WXGTK20__
54 static void wxGtkTextInsert(GtkWidget *text,
55 GtkTextBuffer *text_buffer,
56 const wxTextAttr& attr,
57 wxCharBuffer buffer)
58
59 {
60 PangoFontDescription *font_description = attr.HasFont()
61 ? attr.GetFont().GetNativeFontInfo()->description
62 : NULL;
63
64 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
65 : NULL;
66
67 GdkColor *colBg = attr.HasBackgroundColour()
68 ? attr.GetBackgroundColour().GetColor()
69 : NULL;
70
71 GtkTextTag *tag;
72 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
73 "foreground-gdk", colFg,
74 "background-gdk", colBg, NULL );
75
76 GtkTextIter iter;
77 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
78 gtk_text_buffer_get_insert (text_buffer) );
79
80 gtk_text_buffer_insert_with_tags( text_buffer, &iter, buffer, strlen(buffer), tag, NULL );
81 }
82 #else
83 static void wxGtkTextInsert(GtkWidget *text,
84 const wxTextAttr& attr,
85 const char *txt,
86 size_t len)
87 {
88 GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
89 : NULL;
90
91 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
92 : NULL;
93
94 GdkColor *colBg = attr.HasBackgroundColour()
95 ? attr.GetBackgroundColour().GetColor()
96 : NULL;
97
98 gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
99 }
100 #endif // GTK 1.x
101
102 // ----------------------------------------------------------------------------
103 // "insert_text" for GtkEntry
104 // ----------------------------------------------------------------------------
105
106 static void
107 gtk_insert_text_callback(GtkEditable *editable,
108 const gchar *new_text,
109 gint new_text_length,
110 gint *position,
111 wxTextCtrl *win)
112 {
113 if (g_isIdle)
114 wxapp_install_idle_handler();
115
116 // we should only be called if we have a max len limit at all
117 GtkEntry *entry = GTK_ENTRY (editable);
118
119 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
120
121 // check that we don't overflow the max length limit
122 //
123 // FIXME: this doesn't work when we paste a string which is going to be
124 // truncated
125 if ( entry->text_length == entry->text_max_length )
126 {
127 // we don't need to run the base class version at all
128 gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
129
130 // remember that the next changed signal is to be ignored to avoid
131 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
132 win->IgnoreNextTextUpdate();
133
134 // and generate the correct one ourselves
135 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
136 event.SetEventObject(win);
137 event.SetString(win->GetValue());
138 win->GetEventHandler()->ProcessEvent( event );
139 }
140 }
141
142 //-----------------------------------------------------------------------------
143 // "changed"
144 //-----------------------------------------------------------------------------
145
146 static void
147 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
148 {
149 if ( win->IgnoreTextUpdate() )
150 return;
151
152 if (!win->m_hasVMT) return;
153
154 if (g_isIdle)
155 wxapp_install_idle_handler();
156
157 win->SetModified();
158 win->UpdateFontIfNeeded();
159
160 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
161 event.SetEventObject( win );
162 event.SetString( win->GetValue() );
163 win->GetEventHandler()->ProcessEvent( event );
164 }
165
166 //-----------------------------------------------------------------------------
167 // "changed" from vertical scrollbar
168 //-----------------------------------------------------------------------------
169
170 #ifndef __WXGTK20__
171 static void
172 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
173 {
174 if (!win->m_hasVMT) return;
175
176 if (g_isIdle)
177 wxapp_install_idle_handler();
178
179 win->CalculateScrollbar();
180 }
181 #endif
182
183 // ----------------------------------------------------------------------------
184 // redraw callback for multiline text
185 // ----------------------------------------------------------------------------
186
187 #ifndef __WXGTK20__
188
189 // redrawing a GtkText from inside a wxYield() call results in crashes (the
190 // text sample shows it in its "Add lines" command which shows wxProgressDialog
191 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
192 // don't do anything if we're inside wxYield()
193
194 extern bool wxIsInsideYield;
195
196 extern "C" {
197 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
198 }
199
200 static GtkDrawCallback gs_gtk_text_draw = NULL;
201
202 extern "C"
203 void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
204 {
205 if ( !wxIsInsideYield )
206 {
207 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
208 _T("infinite recursion in wxgtk_text_draw aborted") );
209
210 gs_gtk_text_draw(widget, rect);
211 }
212 }
213
214 #endif // __WXGTK20__
215
216 //-----------------------------------------------------------------------------
217 // wxTextCtrl
218 //-----------------------------------------------------------------------------
219
220 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
221
222 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
223 EVT_CHAR(wxTextCtrl::OnChar)
224
225 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
226 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
227 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
228 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
229 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
230
231 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
232 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
233 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
234 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
235 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
236 END_EVENT_TABLE()
237
238 void wxTextCtrl::Init()
239 {
240 m_ignoreNextUpdate =
241 m_modified = FALSE;
242 m_updateFont = FALSE;
243 m_text =
244 m_vScrollbar = (GtkWidget *)NULL;
245 }
246
247 wxTextCtrl::wxTextCtrl( wxWindow *parent,
248 wxWindowID id,
249 const wxString &value,
250 const wxPoint &pos,
251 const wxSize &size,
252 long style,
253 const wxValidator& validator,
254 const wxString &name )
255 {
256 Init();
257
258 Create( parent, id, value, pos, size, style, validator, name );
259 }
260
261 bool wxTextCtrl::Create( wxWindow *parent,
262 wxWindowID id,
263 const wxString &value,
264 const wxPoint &pos,
265 const wxSize &size,
266 long style,
267 const wxValidator& validator,
268 const wxString &name )
269 {
270 m_needParent = TRUE;
271 m_acceptsFocus = TRUE;
272
273 if (!PreCreation( parent, pos, size ) ||
274 !CreateBase( parent, id, pos, size, style, validator, name ))
275 {
276 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
277 return FALSE;
278 }
279
280
281 m_vScrollbarVisible = FALSE;
282
283 bool multi_line = (style & wxTE_MULTILINE) != 0;
284
285 #ifdef __WXGTK20__
286 GtkTextBuffer *buffer = NULL;
287 #endif
288
289 if (multi_line)
290 {
291 #ifdef __WXGTK20__
292 // Create view
293 m_text = gtk_text_view_new();
294
295 buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
296
297 // create scrolled window
298 m_widget = gtk_scrolled_window_new( NULL, NULL );
299 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
300 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
301
302 // Insert view into scrolled window
303 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
304
305 // Global settings which can be overridden by tags, I guess.
306 if (HasFlag( wxHSCROLL ) || 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 #ifdef __WXGTK20__
418 if (multi_line)
419 {
420 if (style & wxTE_RIGHT)
421 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
422 else if (style & wxTE_CENTRE)
423 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
424 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
425 }
426 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
427 #if GTK_CHECK_VERSION(2, 3, 5)
428 else
429 {
430 if (style & wxTE_RIGHT)
431 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
432 else if (style & wxTE_CENTRE)
433 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
434 }
435 #endif // gtk+-2.3.5
436 #endif // __WXGTK20__
437 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
438 #else
439 }
440 else
441 {
442 if (multi_line)
443 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
444 #endif
445 }
446
447
448 // We want to be notified about text changes.
449 #ifdef __WXGTK20__
450 if (multi_line)
451 {
452 g_signal_connect( G_OBJECT(buffer), "changed",
453 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
454 }
455 else
456 #endif
457
458 {
459 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
460 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
461 }
462
463 m_cursor = wxCursor( wxCURSOR_IBEAM );
464
465 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
466 SetDefaultStyle( attrDef );
467
468 return TRUE;
469 }
470
471
472 void wxTextCtrl::CalculateScrollbar()
473 {
474 #ifndef __WXGTK20__
475 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
476
477 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
478
479 if (adj->upper - adj->page_size < 0.8)
480 {
481 if (m_vScrollbarVisible)
482 {
483 gtk_widget_hide( m_vScrollbar );
484 m_vScrollbarVisible = FALSE;
485 }
486 }
487 else
488 {
489 if (!m_vScrollbarVisible)
490 {
491 gtk_widget_show( m_vScrollbar );
492 m_vScrollbarVisible = TRUE;
493 }
494 }
495 #endif
496 }
497
498 wxString wxTextCtrl::GetValue() const
499 {
500 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
501
502 wxString tmp;
503 if (m_windowStyle & wxTE_MULTILINE)
504 {
505 #ifdef __WXGTK20__
506 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
507
508 GtkTextIter start;
509 gtk_text_buffer_get_start_iter( text_buffer, &start );
510 GtkTextIter end;
511 gtk_text_buffer_get_end_iter( text_buffer, &end );
512 gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
513
514 #if wxUSE_UNICODE
515 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
516 #else
517 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
518 #endif
519 tmp = buffer;
520
521 g_free( text );
522 #else
523 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
524 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
525 tmp = text;
526 g_free( text );
527 #endif
528 }
529 else
530 {
531 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
532 }
533
534 return tmp;
535 }
536
537 void wxTextCtrl::SetValue( const wxString &value )
538 {
539 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
540
541 if (m_windowStyle & wxTE_MULTILINE)
542 {
543 #ifdef __WXGTK20__
544
545 #if wxUSE_UNICODE
546 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
547 #else
548 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
549 #endif
550 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
551 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
552
553 #else
554 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
555 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
556 len = 0;
557 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
558 #endif
559 }
560 else
561 {
562 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
563 }
564
565 // GRG, Jun/2000: Changed this after a lot of discussion in
566 // the lists. wxWidgets 2.2 will have a set of flags to
567 // customize this behaviour.
568 SetInsertionPoint(0);
569
570 m_modified = FALSE;
571 }
572
573 void wxTextCtrl::WriteText( const wxString &text )
574 {
575 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
576
577 if ( text.empty() )
578 return;
579
580 if ( m_windowStyle & wxTE_MULTILINE )
581 {
582 #ifdef __WXGTK20__
583
584 #if wxUSE_UNICODE
585 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
586 #else
587 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
588 #endif
589 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
590
591 // TODO: Call whatever is needed to delete the selection.
592 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
593
594 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
595 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
596 if ( adj->value == adj->upper - adj->page_size )
597 {
598 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
599 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
600 }
601 #else // GTK 1.x
602 // After cursor movements, gtk_text_get_point() is wrong by one.
603 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
604
605 // always use m_defaultStyle, even if it is empty as otherwise
606 // resetting the style and appending some more text wouldn't work: if
607 // we don't specify the style explicitly, the old style would be used
608 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
609 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
610
611 // we called wxGtkTextInsert with correct font, no need to do anything
612 // in UpdateFontIfNeeded() any longer
613 if ( !text.empty() )
614 {
615 m_updateFont = FALSE;
616 }
617
618 // Bring editable's cursor back uptodate.
619 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
620 #endif // GTK 1.x/2.0
621 }
622 else // single line
623 {
624 // First remove the selection if there is one
625 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
626
627 // This moves the cursor pos to behind the inserted text.
628 gint len = GET_EDITABLE_POS(m_text);
629
630 #ifdef __WXGTK20__
631
632 #if wxUSE_UNICODE
633 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
634 #else
635 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
636 #endif
637 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
638
639 #else
640 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
641 #endif
642
643 // Bring entry's cursor uptodate.
644 gtk_entry_set_position( GTK_ENTRY(m_text), len );
645 }
646
647 m_modified = TRUE;
648 }
649
650 void wxTextCtrl::AppendText( const wxString &text )
651 {
652 SetInsertionPointEnd();
653 WriteText( text );
654 }
655
656 wxString wxTextCtrl::GetLineText( long lineNo ) const
657 {
658 if (m_windowStyle & wxTE_MULTILINE)
659 {
660 #ifndef __WXGTK20__
661 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
662 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
663
664 if (text)
665 {
666 wxString buf(wxT(""));
667 long i;
668 int currentLine = 0;
669 for (i = 0; currentLine != lineNo && text[i]; i++ )
670 if (text[i] == '\n')
671 currentLine++;
672 // Now get the text
673 int j;
674 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
675 buf += text[i];
676
677 g_free( text );
678 return buf;
679 }
680 else
681 {
682 return wxEmptyString;
683 }
684 #else
685 GtkTextBuffer *text_buffer;
686 text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
687 GtkTextIter line;
688 gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
689 GtkTextIter end;
690 gtk_text_buffer_get_end_iter(text_buffer,&end );
691 gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
692 wxString result(wxGTK_CONV_BACK(text));
693 g_free(text);
694 return result.BeforeFirst(wxT('\n'));
695 #endif
696 }
697 else
698 {
699 if (lineNo == 0) return GetValue();
700 return wxEmptyString;
701 }
702 }
703
704 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
705 {
706 /* If you implement this, don't forget to update the documentation!
707 * (file docs/latex/wx/text.tex) */
708 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
709 }
710
711 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
712 {
713 if ( m_windowStyle & wxTE_MULTILINE )
714 {
715 wxString text = GetValue();
716
717 // cast to prevent warning. But pos really should've been unsigned.
718 if( (unsigned long)pos > text.Len() )
719 return FALSE;
720
721 *x=0; // First Col
722 *y=0; // First Line
723
724 const wxChar* stop = text.c_str() + pos;
725 for ( const wxChar *p = text.c_str(); p < stop; p++ )
726 {
727 if (*p == wxT('\n'))
728 {
729 (*y)++;
730 *x=0;
731 }
732 else
733 (*x)++;
734 }
735 }
736 else // single line control
737 {
738 if ( pos <= GTK_ENTRY(m_text)->text_length )
739 {
740 *y = 0;
741 *x = pos;
742 }
743 else
744 {
745 // index out of bounds
746 return FALSE;
747 }
748 }
749
750 return TRUE;
751 }
752
753 long wxTextCtrl::XYToPosition(long x, long y ) const
754 {
755 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
756
757 long pos=0;
758 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
759
760 pos += x;
761 return pos;
762 }
763
764 int wxTextCtrl::GetLineLength(long lineNo) const
765 {
766 wxString str = GetLineText (lineNo);
767 return (int) str.Length();
768 }
769
770 int wxTextCtrl::GetNumberOfLines() const
771 {
772 if (m_windowStyle & wxTE_MULTILINE)
773 {
774 #ifdef __WXGTK20__
775 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
776
777 return gtk_text_buffer_get_line_count( buffer );
778 #else
779 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
780 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
781
782 if (text)
783 {
784 int currentLine = 0;
785 for (int i = 0; i < len; i++ )
786 {
787 if (text[i] == '\n')
788 currentLine++;
789 }
790 g_free( text );
791
792 // currentLine is 0 based, add 1 to get number of lines
793 return currentLine + 1;
794 }
795 else
796 {
797 return 0;
798 }
799 #endif
800 }
801 else
802 {
803 return 1;
804 }
805 }
806
807 void wxTextCtrl::SetInsertionPoint( long pos )
808 {
809 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
810
811 if (m_windowStyle & wxTE_MULTILINE)
812 {
813 #ifdef __WXGTK20__
814 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
815 GtkTextIter iter;
816 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
817 gtk_text_buffer_place_cursor( text_buffer, &iter );
818 #else
819 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
820 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
821
822 /* we fake a set_point by inserting and deleting. as the user
823 isn't supposed to get to know about this non-sense, we
824 disconnect so that no events are sent to the user program. */
825
826 gint tmp = (gint)pos;
827 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
828 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
829
830 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
831 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
832
833 // bring editable's cursor uptodate. Bug in GTK.
834 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
835 #endif
836 }
837 else
838 {
839 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
840
841 // Bring editable's cursor uptodate. Bug in GTK.
842 SET_EDITABLE_POS(m_text, (guint32)pos);
843 }
844 }
845
846 void wxTextCtrl::SetInsertionPointEnd()
847 {
848 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
849
850 if (m_windowStyle & wxTE_MULTILINE)
851 {
852 #ifdef __WXGTK20__
853 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
854 GtkTextIter end;
855 gtk_text_buffer_get_end_iter( text_buffer, &end );
856 gtk_text_buffer_place_cursor( text_buffer, &end );
857 #else
858 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
859 #endif
860 }
861 else
862 {
863 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
864 }
865 }
866
867 void wxTextCtrl::SetEditable( bool editable )
868 {
869 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
870
871 if (m_windowStyle & wxTE_MULTILINE)
872 {
873 #ifdef __WXGTK20__
874 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
875 #else
876 gtk_text_set_editable( GTK_TEXT(m_text), editable );
877 #endif
878 }
879 else
880 {
881 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
882 }
883 }
884
885 bool wxTextCtrl::Enable( bool enable )
886 {
887 if (!wxWindowBase::Enable(enable))
888 {
889 // nothing to do
890 return FALSE;
891 }
892
893 if (m_windowStyle & wxTE_MULTILINE)
894 {
895 #ifdef __WXGTK20__
896 SetEditable( enable );
897 #else
898 gtk_text_set_editable( GTK_TEXT(m_text), enable );
899 OnParentEnable(enable);
900 #endif
901 }
902 else
903 {
904 gtk_widget_set_sensitive( m_text, enable );
905 }
906
907 return TRUE;
908 }
909
910 // wxGTK-specific: called recursively by Enable,
911 // to give widgets an oppprtunity to correct their colours after they
912 // have been changed by Enable
913 void wxTextCtrl::OnParentEnable( bool enable )
914 {
915 // If we have a custom background colour, we use this colour in both
916 // disabled and enabled mode, or we end up with a different colour under the
917 // text.
918 wxColour oldColour = GetBackgroundColour();
919 if (oldColour.Ok())
920 {
921 // Need to set twice or it'll optimize the useful stuff out
922 if (oldColour == * wxWHITE)
923 SetBackgroundColour(*wxBLACK);
924 else
925 SetBackgroundColour(*wxWHITE);
926 SetBackgroundColour(oldColour);
927 }
928 }
929
930 void wxTextCtrl::MarkDirty()
931 {
932 m_modified = TRUE;
933 }
934
935 void wxTextCtrl::DiscardEdits()
936 {
937 m_modified = FALSE;
938 }
939
940 // ----------------------------------------------------------------------------
941 // max text length support
942 // ----------------------------------------------------------------------------
943
944 void wxTextCtrl::IgnoreNextTextUpdate()
945 {
946 m_ignoreNextUpdate = TRUE;
947 }
948
949 bool wxTextCtrl::IgnoreTextUpdate()
950 {
951 if ( m_ignoreNextUpdate )
952 {
953 m_ignoreNextUpdate = FALSE;
954
955 return TRUE;
956 }
957
958 return FALSE;
959 }
960
961 void wxTextCtrl::SetMaxLength(unsigned long len)
962 {
963 if ( !HasFlag(wxTE_MULTILINE) )
964 {
965 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
966
967 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
968 // we had tried to enter more text than allowed by max text length and
969 // the text wasn't really changed
970 //
971 // to detect this and generate TEXT_MAXLEN event instead of
972 // TEXT_CHANGED one in this case we also catch "insert_text" signal
973 //
974 // when max len is set to 0 we disconnect our handler as it means that
975 // we shouldn't check anything any more
976 if ( len )
977 {
978 gtk_signal_connect( GTK_OBJECT(m_text),
979 "insert_text",
980 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
981 (gpointer)this);
982 }
983 else // no checking
984 {
985 gtk_signal_disconnect_by_func
986 (
987 GTK_OBJECT(m_text),
988 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
989 (gpointer)this
990 );
991 }
992 }
993 }
994
995 void wxTextCtrl::SetSelection( long from, long to )
996 {
997 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
998
999 if (from == -1 && to == -1)
1000 {
1001 from = 0;
1002 to = GetValue().Length();
1003 }
1004
1005 #ifndef __WXGTK20__
1006 if ( (m_windowStyle & wxTE_MULTILINE) &&
1007 !GTK_TEXT(m_text)->line_start_cache )
1008 {
1009 // tell the programmer that it didn't work
1010 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1011 return;
1012 }
1013 #endif
1014
1015 if (m_windowStyle & wxTE_MULTILINE)
1016 {
1017 #ifdef __WXGTK20__
1018 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1019
1020 GtkTextIter fromi, toi;
1021 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1022 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1023
1024 gtk_text_buffer_place_cursor( buf, &toi );
1025 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1026 #else
1027 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1028 #endif
1029 }
1030 else
1031 {
1032 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1033 }
1034 }
1035
1036 void wxTextCtrl::ShowPosition( long pos )
1037 {
1038 if (m_windowStyle & wxTE_MULTILINE)
1039 {
1040 #ifdef __WXGTK20__
1041 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1042 GtkTextIter iter;
1043 gtk_text_buffer_get_start_iter( buf, &iter );
1044 gtk_text_iter_set_offset( &iter, pos );
1045 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1046 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1047 #else // GTK 1.x
1048 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1049 float totalLines = (float) GetNumberOfLines();
1050 long posX;
1051 long posY;
1052 PositionToXY(pos, &posX, &posY);
1053 float posLine = (float) posY;
1054 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1055 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1056 #endif // GTK 1.x/2.x
1057 }
1058 }
1059
1060 long wxTextCtrl::GetInsertionPoint() const
1061 {
1062 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1063
1064 #ifdef __WXGTK20__
1065 if (m_windowStyle & wxTE_MULTILINE)
1066 {
1067 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1068
1069 // There is no direct accessor for the cursor, but
1070 // internally, the cursor is the "mark" called
1071 // "insert" in the text view's btree structure.
1072
1073 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1074 GtkTextIter cursor;
1075 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1076
1077 return gtk_text_iter_get_offset( &cursor );
1078 }
1079 else
1080 #endif
1081 {
1082 return (long) GET_EDITABLE_POS(m_text);
1083 }
1084 }
1085
1086 long wxTextCtrl::GetLastPosition() const
1087 {
1088 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1089
1090 int pos = 0;
1091
1092 if (m_windowStyle & wxTE_MULTILINE)
1093 {
1094 #ifdef __WXGTK20__
1095 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1096 GtkTextIter end;
1097 gtk_text_buffer_get_end_iter( text_buffer, &end );
1098
1099 pos = gtk_text_iter_get_offset( &end );
1100 #else
1101 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1102 #endif
1103 }
1104 else
1105 {
1106 pos = GTK_ENTRY(m_text)->text_length;
1107 }
1108
1109 return (long)pos;
1110 }
1111
1112 void wxTextCtrl::Remove( long from, long to )
1113 {
1114 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1115
1116 #ifdef __WXGTK20__
1117 if (m_windowStyle & wxTE_MULTILINE)
1118 {
1119 GtkTextBuffer *
1120 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1121
1122 GtkTextIter fromi, toi;
1123 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1124 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1125
1126 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1127 }
1128 else // single line
1129 #endif
1130 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1131 }
1132
1133 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1134 {
1135 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1136
1137 Remove( from, to );
1138
1139 if (!value.IsEmpty())
1140 {
1141 #ifdef __WXGTK20__
1142 SetInsertionPoint( from );
1143 WriteText( value );
1144 #else // GTK 1.x
1145 gint pos = (gint)from;
1146 #if wxUSE_UNICODE
1147 wxWX2MBbuf buf = value.mbc_str();
1148 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1149 #else
1150 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1151 #endif // wxUSE_UNICODE
1152 #endif // GTK 1.x/2.x
1153 }
1154 }
1155
1156 void wxTextCtrl::Cut()
1157 {
1158 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1159
1160 #ifndef __WXGTK20__
1161 gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1162 #endif
1163 }
1164
1165 void wxTextCtrl::Copy()
1166 {
1167 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1168
1169 #ifndef __WXGTK20__
1170 gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1171 #endif
1172 }
1173
1174 void wxTextCtrl::Paste()
1175 {
1176 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1177
1178 #ifndef __WXGTK20__
1179 gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1180 #endif
1181 }
1182
1183 // Undo/redo
1184 void wxTextCtrl::Undo()
1185 {
1186 // TODO
1187 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1188 }
1189
1190 void wxTextCtrl::Redo()
1191 {
1192 // TODO
1193 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1194 }
1195
1196 bool wxTextCtrl::CanUndo() const
1197 {
1198 // TODO
1199 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1200 return FALSE;
1201 }
1202
1203 bool wxTextCtrl::CanRedo() const
1204 {
1205 // TODO
1206 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1207 return FALSE;
1208 }
1209
1210 // If the return values from and to are the same, there is no
1211 // selection.
1212 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1213 {
1214 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1215
1216 gint from = -1;
1217 gint to = -1;
1218 bool haveSelection = FALSE;
1219
1220 #ifdef __WXGTK20__
1221 if (m_windowStyle & wxTE_MULTILINE)
1222 {
1223 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1224 GtkTextIter ifrom, ito;
1225 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1226 {
1227 haveSelection = TRUE;
1228 from = gtk_text_iter_get_offset(&ifrom);
1229 to = gtk_text_iter_get_offset(&ito);
1230 }
1231 }
1232 else // not multi-line
1233 {
1234 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1235 &from, &to) )
1236 {
1237 haveSelection = TRUE;
1238 }
1239 }
1240 #else // not GTK2
1241 if ( (GTK_EDITABLE(m_text)->has_selection) )
1242 {
1243 haveSelection = TRUE;
1244 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1245 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1246 }
1247 #endif
1248
1249 if (! haveSelection )
1250 from = to = GetInsertionPoint();
1251
1252 if ( from > to )
1253 {
1254 // exchange them to be compatible with wxMSW
1255 gint tmp = from;
1256 from = to;
1257 to = tmp;
1258 }
1259
1260 if ( fromOut )
1261 *fromOut = from;
1262 if ( toOut )
1263 *toOut = to;
1264 }
1265
1266
1267 bool wxTextCtrl::IsEditable() const
1268 {
1269 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1270
1271 #ifdef __WXGTK20__
1272 if (m_windowStyle & wxTE_MULTILINE)
1273 {
1274 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1275 }
1276 else
1277 {
1278 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1279 }
1280 #else
1281 return GTK_EDITABLE(m_text)->editable;
1282 #endif
1283 }
1284
1285 bool wxTextCtrl::IsModified() const
1286 {
1287 return m_modified;
1288 }
1289
1290 void wxTextCtrl::Clear()
1291 {
1292 SetValue( wxT("") );
1293 }
1294
1295 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1296 {
1297 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1298
1299 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1300 {
1301 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1302 event.SetEventObject(this);
1303 event.SetString(GetValue());
1304 if (GetEventHandler()->ProcessEvent(event)) return;
1305 }
1306
1307 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1308 {
1309 // This will invoke the dialog default action, such
1310 // as the clicking the default button.
1311
1312 wxWindow *top_frame = m_parent;
1313 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1314 top_frame = top_frame->GetParent();
1315
1316 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1317 {
1318 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1319
1320 if (window->default_widget)
1321 {
1322 gtk_widget_activate (window->default_widget);
1323 return;
1324 }
1325 }
1326 }
1327
1328 key_event.Skip();
1329 }
1330
1331 GtkWidget* wxTextCtrl::GetConnectWidget()
1332 {
1333 return GTK_WIDGET(m_text);
1334 }
1335
1336 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1337 {
1338 if (m_windowStyle & wxTE_MULTILINE)
1339 {
1340 #ifdef __WXGTK20__
1341 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1342 #else
1343 return (window == GTK_TEXT(m_text)->text_area);
1344 #endif
1345 }
1346 else
1347 {
1348 return (window == GTK_ENTRY(m_text)->text_area);
1349 }
1350 }
1351
1352 // the font will change for subsequent text insertiongs
1353 bool wxTextCtrl::SetFont( const wxFont &font )
1354 {
1355 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1356
1357 if ( !wxTextCtrlBase::SetFont(font) )
1358 {
1359 // font didn't change, nothing to do
1360 return FALSE;
1361 }
1362
1363 if ( m_windowStyle & wxTE_MULTILINE )
1364 {
1365 m_updateFont = TRUE;
1366
1367 m_defaultStyle.SetFont(font);
1368
1369 ChangeFontGlobally();
1370 }
1371
1372 return TRUE;
1373 }
1374
1375 void wxTextCtrl::ChangeFontGlobally()
1376 {
1377 // this method is very inefficient and hence should be called as rarely as
1378 // possible!
1379 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1380 _T("shouldn't be called for single line controls") );
1381
1382 wxString value = GetValue();
1383 if ( !value.IsEmpty() )
1384 {
1385 m_updateFont = FALSE;
1386
1387 Clear();
1388 AppendText(value);
1389 }
1390 }
1391
1392 void wxTextCtrl::UpdateFontIfNeeded()
1393 {
1394 if ( m_updateFont )
1395 ChangeFontGlobally();
1396 }
1397
1398 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1399 {
1400 if ( !wxControl::SetForegroundColour(colour) )
1401 return FALSE;
1402
1403 // update default fg colour too
1404 m_defaultStyle.SetTextColour(colour);
1405
1406 return TRUE;
1407 }
1408
1409 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1410 {
1411 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1412
1413 if ( !wxControl::SetBackgroundColour( colour ) )
1414 return FALSE;
1415
1416 if (!m_widget->window)
1417 return FALSE;
1418
1419 wxColour sysbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
1420 if (sysbg.Red() == colour.Red() &&
1421 sysbg.Green() == colour.Green() &&
1422 sysbg.Blue() == colour.Blue())
1423 {
1424 return FALSE; // FIXME or TRUE?
1425 }
1426
1427 if (!m_backgroundColour.Ok())
1428 return FALSE;
1429
1430 if (m_windowStyle & wxTE_MULTILINE)
1431 {
1432 #ifndef __WXGTK20__
1433 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1434 if (!window)
1435 return FALSE;
1436 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1437 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1438 gdk_window_clear( window );
1439 #endif
1440 }
1441
1442 // change active background color too
1443 m_defaultStyle.SetBackgroundColour( colour );
1444
1445 return TRUE;
1446 }
1447
1448 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1449 {
1450 if ( m_windowStyle & wxTE_MULTILINE )
1451 {
1452 if ( style.IsDefault() )
1453 {
1454 // nothing to do
1455 return TRUE;
1456 }
1457 #ifdef __WXGTK20__
1458 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1459 gint l = gtk_text_buffer_get_char_count( text_buffer );
1460
1461 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1462 _T("invalid range in wxTextCtrl::SetStyle") );
1463
1464 GtkTextIter starti, endi;
1465 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1466 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1467
1468 // use the attributes from style which are set in it and fall back
1469 // first to the default style and then to the text control default
1470 // colours for the others
1471 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1472
1473 PangoFontDescription *font_description = attr.HasFont()
1474 ? attr.GetFont().GetNativeFontInfo()->description
1475 : NULL;
1476
1477 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1478 : NULL;
1479
1480 GdkColor *colBg = attr.HasBackgroundColour()
1481 ? attr.GetBackgroundColour().GetColor()
1482 : NULL;
1483
1484 GtkTextTag *tag;
1485 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1486 "foreground-gdk", colFg,
1487 "background-gdk", colBg, NULL );
1488 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1489
1490 return TRUE;
1491 #else
1492 // VERY dirty way to do that - removes the required text and re-adds it
1493 // with styling (FIXME)
1494
1495 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1496
1497 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1498 _T("invalid range in wxTextCtrl::SetStyle") );
1499
1500 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1501 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1502 wxString tmp(text,*wxConvCurrent);
1503 g_free( text );
1504
1505 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1506 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1507
1508 #if wxUSE_UNICODE
1509 wxWX2MBbuf buf = tmp.mbc_str();
1510 const char *txt = buf;
1511 size_t txtlen = strlen(buf);
1512 #else
1513 const char *txt = tmp;
1514 size_t txtlen = tmp.length();
1515 #endif
1516
1517 // use the attributes from style which are set in it and fall back
1518 // first to the default style and then to the text control default
1519 // colours for the others
1520 wxGtkTextInsert(m_text,
1521 wxTextAttr::Combine(style, m_defaultStyle, this),
1522 txt,
1523 txtlen);
1524
1525 /* does not seem to help under GTK+ 1.2 !!!
1526 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1527 SetInsertionPoint( old_pos );
1528 #endif
1529 return TRUE;
1530 }
1531 else // singe line
1532 {
1533 // cannot do this for GTK+'s Entry widget
1534 return FALSE;
1535 }
1536 }
1537
1538 void wxTextCtrl::ApplyWidgetStyle()
1539 {
1540 SetWidgetStyle();
1541 gtk_widget_set_style( m_text, m_widgetStyle );
1542 }
1543
1544 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1545 {
1546 Cut();
1547 }
1548
1549 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1550 {
1551 Copy();
1552 }
1553
1554 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1555 {
1556 Paste();
1557 }
1558
1559 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1560 {
1561 Undo();
1562 }
1563
1564 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1565 {
1566 Redo();
1567 }
1568
1569 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1570 {
1571 event.Enable( CanCut() );
1572 }
1573
1574 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1575 {
1576 event.Enable( CanCopy() );
1577 }
1578
1579 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1580 {
1581 event.Enable( CanPaste() );
1582 }
1583
1584 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1585 {
1586 event.Enable( CanUndo() );
1587 }
1588
1589 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1590 {
1591 event.Enable( CanRedo() );
1592 }
1593
1594 void wxTextCtrl::OnInternalIdle()
1595 {
1596 wxCursor cursor = m_cursor;
1597 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1598
1599 if (cursor.Ok())
1600 {
1601 #ifndef __WXGTK20__
1602 GdkWindow *window = (GdkWindow*) NULL;
1603 if (HasFlag(wxTE_MULTILINE))
1604 window = GTK_TEXT(m_text)->text_area;
1605 else
1606 window = GTK_ENTRY(m_text)->text_area;
1607
1608 if (window)
1609 gdk_window_set_cursor( window, cursor.GetCursor() );
1610
1611 if (!g_globalCursor.Ok())
1612 cursor = *wxSTANDARD_CURSOR;
1613
1614 window = m_widget->window;
1615 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1616 gdk_window_set_cursor( window, cursor.GetCursor() );
1617 #endif
1618 }
1619
1620 if (g_delayedFocus == this)
1621 {
1622 if (GTK_WIDGET_REALIZED(m_widget))
1623 {
1624 gtk_widget_grab_focus( m_widget );
1625 g_delayedFocus = NULL;
1626 }
1627 }
1628
1629 if (wxUpdateUIEvent::CanUpdate(this))
1630 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1631 }
1632
1633 wxSize wxTextCtrl::DoGetBestSize() const
1634 {
1635 // FIXME should be different for multi-line controls...
1636 wxSize ret( wxControl::DoGetBestSize() );
1637 return wxSize(80, ret.y);
1638 }
1639
1640 // ----------------------------------------------------------------------------
1641 // freeze/thaw
1642 // ----------------------------------------------------------------------------
1643
1644 void wxTextCtrl::Freeze()
1645 {
1646 #ifndef __WXGTK20__
1647 if ( HasFlag(wxTE_MULTILINE) )
1648 {
1649 gtk_text_freeze(GTK_TEXT(m_text));
1650 }
1651 #endif
1652 }
1653
1654 void wxTextCtrl::Thaw()
1655 {
1656 #ifndef __WXGTK20__
1657 if ( HasFlag(wxTE_MULTILINE) )
1658 {
1659 GTK_TEXT(m_text)->vadj->value = 0.0;
1660
1661 gtk_text_thaw(GTK_TEXT(m_text));
1662 }
1663 #endif
1664 }
1665
1666 // ----------------------------------------------------------------------------
1667 // scrolling
1668 // ----------------------------------------------------------------------------
1669
1670 GtkAdjustment *wxTextCtrl::GetVAdj() const
1671 {
1672 #ifdef __WXGTK20__
1673 return NULL;
1674 #else
1675 return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
1676 #endif
1677 }
1678
1679 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1680 {
1681 #ifndef __WXGTK20__
1682 float value = adj->value + diff;
1683
1684 if ( value < 0 )
1685 value = 0;
1686
1687 float upper = adj->upper - adj->page_size;
1688 if ( value > upper )
1689 value = upper;
1690
1691 // did we noticeably change the scroll position?
1692 if ( fabs(adj->value - value) < 0.2 )
1693 {
1694 // well, this is what Robert does in wxScrollBar, so it must be good...
1695 return FALSE;
1696 }
1697
1698 adj->value = value;
1699
1700 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1701
1702 #endif
1703 return TRUE;
1704 }
1705
1706 bool wxTextCtrl::ScrollLines(int lines)
1707 {
1708 #ifdef __WXGTK20__
1709 return FALSE;
1710 #else
1711 GtkAdjustment *adj = GetVAdj();
1712 if ( !adj )
1713 return FALSE;
1714
1715 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1716 static const int KEY_SCROLL_PIXELS = 10;
1717
1718 return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
1719 #endif
1720 }
1721
1722 bool wxTextCtrl::ScrollPages(int pages)
1723 {
1724 #ifdef __WXGTK20__
1725 return FALSE;
1726 #else
1727 GtkAdjustment *adj = GetVAdj();
1728 if ( !adj )
1729 return FALSE;
1730
1731 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1732 #endif
1733 }
1734
1735
1736 // static
1737 wxVisualAttributes
1738 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1739 {
1740 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1741 }
wxWidgets (Impactor)