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[wxWidgets.git] / src / gtk1 / textctrl.cpp
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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
38extern void wxapp_install_idle_handler();
39extern bool g_isIdle;
40
41//-----------------------------------------------------------------------------
42// data
43//-----------------------------------------------------------------------------
44
45extern bool g_blockEventsOnDrag;
46extern wxCursor g_globalCursor;
47extern wxWindowGTK *g_delayedFocus;
48
49// ----------------------------------------------------------------------------
50// helpers
51// ----------------------------------------------------------------------------
52
53#ifdef __WXGTK20__
54static 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
83static 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
106static void
107gtk_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
146static void
147gtk_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__
171static void
172gtk_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
194extern bool wxIsInsideYield;
195
196extern "C" {
197 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
198}
199
200static GtkDrawCallback gs_gtk_text_draw = NULL;
201
202extern "C"
203void 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
220IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
221
222BEGIN_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)
236END_EVENT_TABLE()
237
238void wxTextCtrl::Init()
239{
240 m_ignoreNextUpdate =
241 m_modified = FALSE;
242 m_updateFont = FALSE;
243 m_text =
244 m_vScrollbar = (GtkWidget *)NULL;
245}
246
247wxTextCtrl::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
261bool wxTextCtrl::Create( wxWindow *parent,
262 wxWindowID id,
263 const wxString &value,
264 const wxPoint &pos,
265 const wxSize &size,
266 long style,
267 const wxValidator& validator,
268 const wxString &name )
269{
270 m_needParent = TRUE;
271 m_acceptsFocus = TRUE;
272
273 if (!PreCreation( parent, pos, size ) ||
274 !CreateBase( parent, id, pos, size, style, validator, name ))
275 {
276 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
277 return FALSE;
278 }
279
280
281 m_vScrollbarVisible = FALSE;
282
283 bool multi_line = (style & wxTE_MULTILINE) != 0;
284
285#ifdef __WXGTK20__
286 GtkTextBuffer *buffer = NULL;
287#endif
288
289 if (multi_line)
290 {
291#ifdef __WXGTK20__
292 // Create view
293 m_text = gtk_text_view_new();
294
295 buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
296
297 // create scrolled window
298 m_widget = gtk_scrolled_window_new( NULL, NULL );
299 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
300 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
301
302 // Insert view into scrolled window
303 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
304
305 // Global settings which can be overridden by tags, I guess.
306 if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
307 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
308 else
309 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
310
311 if (!HasFlag(wxNO_BORDER))
312 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
313
314 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
315#else
316 // create our control ...
317 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
318
319 // ... and put into the upper left hand corner of the table
320 bool bHasHScrollbar = FALSE;
321 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
322 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
323 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
324 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
325 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
326 0, 0);
327
328 // always wrap words
329 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
330
331 // finally, put the vertical scrollbar in the upper right corner
332 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
333 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
334 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
335 GTK_FILL,
336 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
337 0, 0);
338#endif
339 }
340 else
341 {
342 // a single-line text control: no need for scrollbars
343 m_widget =
344 m_text = gtk_entry_new();
345 }
346
347 m_parent->DoAddChild( this );
348
349 m_focusWidget = m_text;
350
351 PostCreation(size);
352
353 if (multi_line)
354 gtk_widget_show(m_text);
355
356#ifndef __WXGTK20__
357 if (multi_line)
358 {
359 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
360 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
361
362 // only initialize gs_gtk_text_draw once, starting from the next the
363 // klass::draw will already be wxgtk_text_draw
364 if ( !gs_gtk_text_draw )
365 {
366 GtkDrawCallback&
367 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
368
369 gs_gtk_text_draw = draw;
370
371 draw = wxgtk_text_draw;
372 }
373 }
374#endif // GTK+ 1.x
375
376 if (!value.IsEmpty())
377 {
378#ifdef __WXGTK20__
379 SetValue( value );
380#else
381
382#if !GTK_CHECK_VERSION(1, 2, 0)
383 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
384 // gtk_editable_insert_text()
385 gtk_widget_realize(m_text);
386#endif // GTK 1.0
387
388 gint tmp = 0;
389#if wxUSE_UNICODE
390 wxWX2MBbuf val = value.mbc_str();
391 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
392#else
393 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
394#endif
395
396 if (multi_line)
397 {
398 // Bring editable's cursor uptodate. Bug in GTK.
399 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
400 }
401
402#endif
403 }
404
405 if (style & wxTE_PASSWORD)
406 {
407 if (!multi_line)
408 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
409 }
410
411 if (style & wxTE_READONLY)
412 {
413 if (!multi_line)
414 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
415#ifdef __WXGTK20__
416 else
417 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
418#else
419 }
420 else
421 {
422 if (multi_line)
423 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
424#endif
425 }
426
427
428 // We want to be notified about text changes.
429#ifdef __WXGTK20__
430 if (multi_line)
431 {
432 g_signal_connect( G_OBJECT(buffer), "changed",
433 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
434 }
435 else
436#endif
437
438 {
439 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
440 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
441 }
442
443 m_cursor = wxCursor( wxCURSOR_IBEAM );
444
445 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
446 SetDefaultStyle( attrDef );
447
448 return TRUE;
449}
450
451
452void wxTextCtrl::CalculateScrollbar()
453{
454#ifndef __WXGTK20__
455 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
456
457 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
458
459 if (adj->upper - adj->page_size < 0.8)
460 {
461 if (m_vScrollbarVisible)
462 {
463 gtk_widget_hide( m_vScrollbar );
464 m_vScrollbarVisible = FALSE;
465 }
466 }
467 else
468 {
469 if (!m_vScrollbarVisible)
470 {
471 gtk_widget_show( m_vScrollbar );
472 m_vScrollbarVisible = TRUE;
473 }
474 }
475#endif
476}
477
478wxString wxTextCtrl::GetValue() const
479{
480 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
481
482 wxString tmp;
483 if (m_windowStyle & wxTE_MULTILINE)
484 {
485#ifdef __WXGTK20__
486 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
487
488 GtkTextIter start;
489 gtk_text_buffer_get_start_iter( text_buffer, &start );
490 GtkTextIter end;
491 gtk_text_buffer_get_end_iter( text_buffer, &end );
492 gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
493
494#if wxUSE_UNICODE
495 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
496#else
497 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
498#endif
499 tmp = buffer;
500
501 g_free( text );
502#else
503 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
504 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
505 tmp = text;
506 g_free( text );
507#endif
508 }
509 else
510 {
511 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
512 }
513
514 return tmp;
515}
516
517void wxTextCtrl::SetValue( const wxString &value )
518{
519 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
520
521 if (m_windowStyle & wxTE_MULTILINE)
522 {
523#ifdef __WXGTK20__
524
525#if wxUSE_UNICODE
526 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
527#else
528 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
529#endif
530 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
531 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
532
533#else
534 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
535 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
536 len = 0;
537 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
538#endif
539 }
540 else
541 {
542 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
543 }
544
545 // GRG, Jun/2000: Changed this after a lot of discussion in
546 // the lists. wxWindows 2.2 will have a set of flags to
547 // customize this behaviour.
548 SetInsertionPoint(0);
549
550 m_modified = FALSE;
551}
552
553void wxTextCtrl::WriteText( const wxString &text )
554{
555 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
556
557 if ( text.empty() )
558 return;
559
560 if ( m_windowStyle & wxTE_MULTILINE )
561 {
562#ifdef __WXGTK20__
563
564#if wxUSE_UNICODE
565 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
566#else
567 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
568#endif
569 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
570
571 // TODO: Call whatever is needed to delete the selection.
572 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
573
574 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
575 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
576 if ( adj->value == adj->upper - adj->page_size )
577 {
578 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
579 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
580 }
581#else // GTK 1.x
582 // After cursor movements, gtk_text_get_point() is wrong by one.
583 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
584
585 // always use m_defaultStyle, even if it is empty as otherwise
586 // resetting the style and appending some more text wouldn't work: if
587 // we don't specify the style explicitly, the old style would be used
588 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
589 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
590
591 // we called wxGtkTextInsert with correct font, no need to do anything
592 // in UpdateFontIfNeeded() any longer
593 if ( !text.empty() )
594 {
595 m_updateFont = FALSE;
596 }
597
598 // Bring editable's cursor back uptodate.
599 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
600#endif // GTK 1.x/2.0
601 }
602 else // single line
603 {
604 // First remove the selection if there is one
605 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
606
607 // This moves the cursor pos to behind the inserted text.
608 gint len = GET_EDITABLE_POS(m_text);
609
610#ifdef __WXGTK20__
611
612#if wxUSE_UNICODE
613 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
614#else
615 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
616#endif
617 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
618
619#else
620 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
621#endif
622
623 // Bring entry's cursor uptodate.
624 gtk_entry_set_position( GTK_ENTRY(m_text), len );
625 }
626
627 m_modified = TRUE;
628}
629
630void wxTextCtrl::AppendText( const wxString &text )
631{
632 SetInsertionPointEnd();
633 WriteText( text );
634}
635
636wxString wxTextCtrl::GetLineText( long lineNo ) const
637{
638 if (m_windowStyle & wxTE_MULTILINE)
639 {
640#ifndef __WXGTK20__
641 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
642 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
643
644 if (text)
645 {
646 wxString buf(wxT(""));
647 long i;
648 int currentLine = 0;
649 for (i = 0; currentLine != lineNo && text[i]; i++ )
650 if (text[i] == '\n')
651 currentLine++;
652 // Now get the text
653 int j;
654 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
655 buf += text[i];
656
657 g_free( text );
658 return buf;
659 }
660 else
661 {
662 return wxEmptyString;
663 }
664#else
665 GtkTextBuffer *text_buffer;
666 text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
667 GtkTextIter line;
668 gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
669 GtkTextIter end;
670 gtk_text_buffer_get_end_iter(text_buffer,&end );
671 gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
672 wxString result(wxGTK_CONV_BACK(text));
673 g_free(text);
674 return result.BeforeFirst(wxT('\n'));
675#endif
676 }
677 else
678 {
679 if (lineNo == 0) return GetValue();
680 return wxEmptyString;
681 }
682}
683
684void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
685{
686 /* If you implement this, don't forget to update the documentation!
687 * (file docs/latex/wx/text.tex) */
688 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
689}
690
691bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
692{
693 if ( m_windowStyle & wxTE_MULTILINE )
694 {
695 wxString text = GetValue();
696
697 // cast to prevent warning. But pos really should've been unsigned.
698 if( (unsigned long)pos > text.Len() )
699 return FALSE;
700
701 *x=0; // First Col
702 *y=0; // First Line
703
704 const wxChar* stop = text.c_str() + pos;
705 for ( const wxChar *p = text.c_str(); p < stop; p++ )
706 {
707 if (*p == wxT('\n'))
708 {
709 (*y)++;
710 *x=0;
711 }
712 else
713 (*x)++;
714 }
715 }
716 else // single line control
717 {
718 if ( pos <= GTK_ENTRY(m_text)->text_length )
719 {
720 *y = 0;
721 *x = pos;
722 }
723 else
724 {
725 // index out of bounds
726 return FALSE;
727 }
728 }
729
730 return TRUE;
731}
732
733long wxTextCtrl::XYToPosition(long x, long y ) const
734{
735 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
736
737 long pos=0;
738 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
739
740 pos += x;
741 return pos;
742}
743
744int wxTextCtrl::GetLineLength(long lineNo) const
745{
746 wxString str = GetLineText (lineNo);
747 return (int) str.Length();
748}
749
750int wxTextCtrl::GetNumberOfLines() const
751{
752 if (m_windowStyle & wxTE_MULTILINE)
753 {
754#ifdef __WXGTK20__
755 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
756
757 return gtk_text_buffer_get_line_count( buffer );
758#else
759 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
760 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
761
762 if (text)
763 {
764 int currentLine = 0;
765 for (int i = 0; i < len; i++ )
766 {
767 if (text[i] == '\n')
768 currentLine++;
769 }
770 g_free( text );
771
772 // currentLine is 0 based, add 1 to get number of lines
773 return currentLine + 1;
774 }
775 else
776 {
777 return 0;
778 }
779#endif
780 }
781 else
782 {
783 return 1;
784 }
785}
786
787void wxTextCtrl::SetInsertionPoint( long pos )
788{
789 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
790
791 if (m_windowStyle & wxTE_MULTILINE)
792 {
793#ifdef __WXGTK20__
794 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
795 GtkTextIter iter;
796 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
797 gtk_text_buffer_place_cursor( text_buffer, &iter );
798#else
799 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
800 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
801
802 /* we fake a set_point by inserting and deleting. as the user
803 isn't supposed to get to know about this non-sense, we
804 disconnect so that no events are sent to the user program. */
805
806 gint tmp = (gint)pos;
807 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
808 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
809
810 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
811 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
812
813 // bring editable's cursor uptodate. Bug in GTK.
814 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
815#endif
816 }
817 else
818 {
819 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
820
821 // Bring editable's cursor uptodate. Bug in GTK.
822 SET_EDITABLE_POS(m_text, (guint32)pos);
823 }
824}
825
826void wxTextCtrl::SetInsertionPointEnd()
827{
828 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
829
830 if (m_windowStyle & wxTE_MULTILINE)
831 {
832#ifdef __WXGTK20__
833 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
834 GtkTextIter end;
835 gtk_text_buffer_get_end_iter( text_buffer, &end );
836 gtk_text_buffer_place_cursor( text_buffer, &end );
837#else
838 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
839#endif
840 }
841 else
842 {
843 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
844 }
845}
846
847void wxTextCtrl::SetEditable( bool editable )
848{
849 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
850
851 if (m_windowStyle & wxTE_MULTILINE)
852 {
853#ifdef __WXGTK20__
854 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
855#else
856 gtk_text_set_editable( GTK_TEXT(m_text), editable );
857#endif
858 }
859 else
860 {
861 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
862 }
863}
864
865bool wxTextCtrl::Enable( bool enable )
866{
867 if (!wxWindowBase::Enable(enable))
868 {
869 // nothing to do
870 return FALSE;
871 }
872
873 if (m_windowStyle & wxTE_MULTILINE)
874 {
875#ifdef __WXGTK20__
876 SetEditable( enable );
877#else
878 gtk_text_set_editable( GTK_TEXT(m_text), enable );
879 OnParentEnable(enable);
880#endif
881 }
882 else
883 {
884 gtk_widget_set_sensitive( m_text, enable );
885 }
886
887 return TRUE;
888}
889
890// wxGTK-specific: called recursively by Enable,
891// to give widgets an oppprtunity to correct their colours after they
892// have been changed by Enable
893void wxTextCtrl::OnParentEnable( bool enable )
894{
895 // If we have a custom background colour, we use this colour in both
896 // disabled and enabled mode, or we end up with a different colour under the
897 // text.
898 wxColour oldColour = GetBackgroundColour();
899 if (oldColour.Ok())
900 {
901 // Need to set twice or it'll optimize the useful stuff out
902 if (oldColour == * wxWHITE)
903 SetBackgroundColour(*wxBLACK);
904 else
905 SetBackgroundColour(*wxWHITE);
906 SetBackgroundColour(oldColour);
907 }
908}
909
910void wxTextCtrl::MarkDirty()
911{
912 m_modified = TRUE;
913}
914
915void wxTextCtrl::DiscardEdits()
916{
917 m_modified = FALSE;
918}
919
920// ----------------------------------------------------------------------------
921// max text length support
922// ----------------------------------------------------------------------------
923
924void wxTextCtrl::IgnoreNextTextUpdate()
925{
926 m_ignoreNextUpdate = TRUE;
927}
928
929bool wxTextCtrl::IgnoreTextUpdate()
930{
931 if ( m_ignoreNextUpdate )
932 {
933 m_ignoreNextUpdate = FALSE;
934
935 return TRUE;
936 }
937
938 return FALSE;
939}
940
941void wxTextCtrl::SetMaxLength(unsigned long len)
942{
943 if ( !HasFlag(wxTE_MULTILINE) )
944 {
945 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
946
947 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
948 // we had tried to enter more text than allowed by max text length and
949 // the text wasn't really changed
950 //
951 // to detect this and generate TEXT_MAXLEN event instead of
952 // TEXT_CHANGED one in this case we also catch "insert_text" signal
953 //
954 // when max len is set to 0 we disconnect our handler as it means that
955 // we shouldn't check anything any more
956 if ( len )
957 {
958 gtk_signal_connect( GTK_OBJECT(m_text),
959 "insert_text",
960 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
961 (gpointer)this);
962 }
963 else // no checking
964 {
965 gtk_signal_disconnect_by_func
966 (
967 GTK_OBJECT(m_text),
968 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
969 (gpointer)this
970 );
971 }
972 }
973}
974
975void wxTextCtrl::SetSelection( long from, long to )
976{
977 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
978
979 if (from == -1 && to == -1)
980 {
981 from = 0;
982 to = GetValue().Length();
983 }
984
985#ifndef __WXGTK20__
986 if ( (m_windowStyle & wxTE_MULTILINE) &&
987 !GTK_TEXT(m_text)->line_start_cache )
988 {
989 // tell the programmer that it didn't work
990 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
991 return;
992 }
993#endif
994
995 if (m_windowStyle & wxTE_MULTILINE)
996 {
997#ifdef __WXGTK20__
998 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
999
1000 GtkTextIter fromi, toi;
1001 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1002 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1003
1004 gtk_text_buffer_place_cursor( buf, &toi );
1005 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1006#else
1007 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1008#endif
1009 }
1010 else
1011 {
1012 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1013 }
1014}
1015
1016void wxTextCtrl::ShowPosition( long pos )
1017{
1018 if (m_windowStyle & wxTE_MULTILINE)
1019 {
1020#ifdef __WXGTK20__
1021 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1022 GtkTextIter iter;
1023 gtk_text_buffer_get_start_iter( buf, &iter );
1024 gtk_text_iter_set_offset( &iter, pos );
1025 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1026 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1027#else // GTK 1.x
1028 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1029 float totalLines = (float) GetNumberOfLines();
1030 long posX;
1031 long posY;
1032 PositionToXY(pos, &posX, &posY);
1033 float posLine = (float) posY;
1034 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1035 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1036#endif // GTK 1.x/2.x
1037 }
1038}
1039
1040long wxTextCtrl::GetInsertionPoint() const
1041{
1042 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1043
1044#ifdef __WXGTK20__
1045 if (m_windowStyle & wxTE_MULTILINE)
1046 {
1047 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1048
1049 // There is no direct accessor for the cursor, but
1050 // internally, the cursor is the "mark" called
1051 // "insert" in the text view's btree structure.
1052
1053 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1054 GtkTextIter cursor;
1055 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1056
1057 return gtk_text_iter_get_offset( &cursor );
1058 }
1059 else
1060#endif
1061 {
1062 return (long) GET_EDITABLE_POS(m_text);
1063 }
1064}
1065
1066long wxTextCtrl::GetLastPosition() const
1067{
1068 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1069
1070 int pos = 0;
1071
1072 if (m_windowStyle & wxTE_MULTILINE)
1073 {
1074#ifdef __WXGTK20__
1075 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1076 GtkTextIter end;
1077 gtk_text_buffer_get_end_iter( text_buffer, &end );
1078
1079 pos = gtk_text_iter_get_offset( &end );
1080#else
1081 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1082#endif
1083 }
1084 else
1085 {
1086 pos = GTK_ENTRY(m_text)->text_length;
1087 }
1088
1089 return (long)pos;
1090}
1091
1092void wxTextCtrl::Remove( long from, long to )
1093{
1094 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1095
1096#ifdef __WXGTK20__
1097 if (m_windowStyle & wxTE_MULTILINE)
1098 {
1099 GtkTextBuffer *
1100 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1101
1102 GtkTextIter fromi, toi;
1103 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1104 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1105
1106 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1107 }
1108 else // single line
1109#endif
1110 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1111}
1112
1113void wxTextCtrl::Replace( long from, long to, const wxString &value )
1114{
1115 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1116
1117 Remove( from, to );
1118
1119 if (!value.IsEmpty())
1120 {
1121#ifdef __WXGTK20__
1122 SetInsertionPoint( from );
1123 WriteText( value );
1124#else // GTK 1.x
1125 gint pos = (gint)from;
1126#if wxUSE_UNICODE
1127 wxWX2MBbuf buf = value.mbc_str();
1128 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1129#else
1130 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1131#endif // wxUSE_UNICODE
1132#endif // GTK 1.x/2.x
1133 }
1134}
1135
1136void wxTextCtrl::Cut()
1137{
1138 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1139
1140#ifndef __WXGTK20__
1141 gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1142#endif
1143}
1144
1145void wxTextCtrl::Copy()
1146{
1147 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1148
1149#ifndef __WXGTK20__
1150 gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1151#endif
1152}
1153
1154void wxTextCtrl::Paste()
1155{
1156 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1157
1158#ifndef __WXGTK20__
1159 gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1160#endif
1161}
1162
1163// Undo/redo
1164void wxTextCtrl::Undo()
1165{
1166 // TODO
1167 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1168}
1169
1170void wxTextCtrl::Redo()
1171{
1172 // TODO
1173 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1174}
1175
1176bool wxTextCtrl::CanUndo() const
1177{
1178 // TODO
1179 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1180 return FALSE;
1181}
1182
1183bool wxTextCtrl::CanRedo() const
1184{
1185 // TODO
1186 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1187 return FALSE;
1188}
1189
1190// If the return values from and to are the same, there is no
1191// selection.
1192void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1193{
1194 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1195
1196 gint from = -1;
1197 gint to = -1;
1198 bool haveSelection = FALSE;
1199
1200#ifdef __WXGTK20__
1201 if (m_windowStyle & wxTE_MULTILINE)
1202 {
1203 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1204 GtkTextIter ifrom, ito;
1205 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1206 {
1207 haveSelection = TRUE;
1208 from = gtk_text_iter_get_offset(&ifrom);
1209 to = gtk_text_iter_get_offset(&ito);
1210 }
1211 }
1212 else // not multi-line
1213 {
1214 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1215 &from, &to) )
1216 {
1217 haveSelection = TRUE;
1218 }
1219 }
1220#else // not GTK2
1221 if ( (GTK_EDITABLE(m_text)->has_selection) )
1222 {
1223 haveSelection = TRUE;
1224 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1225 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1226 }
1227#endif
1228
1229 if (! haveSelection )
1230 from = to = GetInsertionPoint();
1231
1232 if ( from > to )
1233 {
1234 // exchange them to be compatible with wxMSW
1235 gint tmp = from;
1236 from = to;
1237 to = tmp;
1238 }
1239
1240 if ( fromOut )
1241 *fromOut = from;
1242 if ( toOut )
1243 *toOut = to;
1244}
1245
1246
1247bool wxTextCtrl::IsEditable() const
1248{
1249 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1250
1251#ifdef __WXGTK20__
1252 if (m_windowStyle & wxTE_MULTILINE)
1253 {
1254 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1255 }
1256 else
1257 {
1258 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1259 }
1260#else
1261 return GTK_EDITABLE(m_text)->editable;
1262#endif
1263}
1264
1265bool wxTextCtrl::IsModified() const
1266{
1267 return m_modified;
1268}
1269
1270void wxTextCtrl::Clear()
1271{
1272 SetValue( wxT("") );
1273}
1274
1275void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1276{
1277 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1278
1279 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1280 {
1281 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1282 event.SetEventObject(this);
1283 event.SetString(GetValue());
1284 if (GetEventHandler()->ProcessEvent(event)) return;
1285 }
1286
1287 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1288 {
1289 // This will invoke the dialog default action, such
1290 // as the clicking the default button.
1291
1292 wxWindow *top_frame = m_parent;
1293 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1294 top_frame = top_frame->GetParent();
1295
1296 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1297 {
1298 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1299
1300 if (window->default_widget)
1301 {
1302 gtk_widget_activate (window->default_widget);
1303 return;
1304 }
1305 }
1306 }
1307
1308 key_event.Skip();
1309}
1310
1311GtkWidget* wxTextCtrl::GetConnectWidget()
1312{
1313 return GTK_WIDGET(m_text);
1314}
1315
1316bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1317{
1318 if (m_windowStyle & wxTE_MULTILINE)
1319 {
1320#ifdef __WXGTK20__
1321 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1322#else
1323 return (window == GTK_TEXT(m_text)->text_area);
1324#endif
1325 }
1326 else
1327 {
1328 return (window == GTK_ENTRY(m_text)->text_area);
1329 }
1330}
1331
1332// the font will change for subsequent text insertiongs
1333bool wxTextCtrl::SetFont( const wxFont &font )
1334{
1335 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1336
1337 if ( !wxTextCtrlBase::SetFont(font) )
1338 {
1339 // font didn't change, nothing to do
1340 return FALSE;
1341 }
1342
1343 if ( m_windowStyle & wxTE_MULTILINE )
1344 {
1345 m_updateFont = TRUE;
1346
1347 m_defaultStyle.SetFont(font);
1348
1349 ChangeFontGlobally();
1350 }
1351
1352 return TRUE;
1353}
1354
1355void wxTextCtrl::ChangeFontGlobally()
1356{
1357 // this method is very inefficient and hence should be called as rarely as
1358 // possible!
1359 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1360 _T("shouldn't be called for single line controls") );
1361
1362 wxString value = GetValue();
1363 if ( !value.IsEmpty() )
1364 {
1365 m_updateFont = FALSE;
1366
1367 Clear();
1368 AppendText(value);
1369 }
1370}
1371
1372void wxTextCtrl::UpdateFontIfNeeded()
1373{
1374 if ( m_updateFont )
1375 ChangeFontGlobally();
1376}
1377
1378bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1379{
1380 if ( !wxControl::SetForegroundColour(colour) )
1381 return FALSE;
1382
1383 // update default fg colour too
1384 m_defaultStyle.SetTextColour(colour);
1385
1386 return TRUE;
1387}
1388
1389bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1390{
1391 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1392
1393 if ( !wxControl::SetBackgroundColour( colour ) )
1394 return FALSE;
1395
1396 if (!m_widget->window)
1397 return FALSE;
1398
1399 wxColour sysbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
1400 if (sysbg.Red() == colour.Red() &&
1401 sysbg.Green() == colour.Green() &&
1402 sysbg.Blue() == colour.Blue())
1403 {
1404 return FALSE; // FIXME or TRUE?
1405 }
1406
1407 if (!m_backgroundColour.Ok())
1408 return FALSE;
1409
1410 if (m_windowStyle & wxTE_MULTILINE)
1411 {
1412#ifndef __WXGTK20__
1413 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1414 if (!window)
1415 return FALSE;
1416 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1417 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1418 gdk_window_clear( window );
1419#endif
1420 }
1421
1422 // change active background color too
1423 m_defaultStyle.SetBackgroundColour( colour );
1424
1425 return TRUE;
1426}
1427
1428bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1429{
1430 if ( m_windowStyle & wxTE_MULTILINE )
1431 {
1432 if ( style.IsDefault() )
1433 {
1434 // nothing to do
1435 return TRUE;
1436 }
1437#ifdef __WXGTK20__
1438 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1439 gint l = gtk_text_buffer_get_char_count( text_buffer );
1440
1441 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1442 _T("invalid range in wxTextCtrl::SetStyle") );
1443
1444 GtkTextIter starti, endi;
1445 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1446 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1447
1448 // use the attributes from style which are set in it and fall back
1449 // first to the default style and then to the text control default
1450 // colours for the others
1451 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1452
1453 PangoFontDescription *font_description = attr.HasFont()
1454 ? attr.GetFont().GetNativeFontInfo()->description
1455 : NULL;
1456
1457 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1458 : NULL;
1459
1460 GdkColor *colBg = attr.HasBackgroundColour()
1461 ? attr.GetBackgroundColour().GetColor()
1462 : NULL;
1463
1464 GtkTextTag *tag;
1465 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1466 "foreground-gdk", colFg,
1467 "background-gdk", colBg, NULL );
1468 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1469
1470 return TRUE;
1471#else
1472 // VERY dirty way to do that - removes the required text and re-adds it
1473 // with styling (FIXME)
1474
1475 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1476
1477 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1478 _T("invalid range in wxTextCtrl::SetStyle") );
1479
1480 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1481 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1482 wxString tmp(text,*wxConvCurrent);
1483 g_free( text );
1484
1485 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1486 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1487
1488#if wxUSE_UNICODE
1489 wxWX2MBbuf buf = tmp.mbc_str();
1490 const char *txt = buf;
1491 size_t txtlen = strlen(buf);
1492#else
1493 const char *txt = tmp;
1494 size_t txtlen = tmp.length();
1495#endif
1496
1497 // use the attributes from style which are set in it and fall back
1498 // first to the default style and then to the text control default
1499 // colours for the others
1500 wxGtkTextInsert(m_text,
1501 wxTextAttr::Combine(style, m_defaultStyle, this),
1502 txt,
1503 txtlen);
1504
1505 /* does not seem to help under GTK+ 1.2 !!!
1506 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1507 SetInsertionPoint( old_pos );
1508#endif
1509 return TRUE;
1510 }
1511 else // singe line
1512 {
1513 // cannot do this for GTK+'s Entry widget
1514 return FALSE;
1515 }
1516}
1517
1518void wxTextCtrl::ApplyWidgetStyle()
1519{
1520 SetWidgetStyle();
1521 gtk_widget_set_style( m_text, m_widgetStyle );
1522}
1523
1524void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1525{
1526 Cut();
1527}
1528
1529void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1530{
1531 Copy();
1532}
1533
1534void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1535{
1536 Paste();
1537}
1538
1539void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1540{
1541 Undo();
1542}
1543
1544void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1545{
1546 Redo();
1547}
1548
1549void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1550{
1551 event.Enable( CanCut() );
1552}
1553
1554void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1555{
1556 event.Enable( CanCopy() );
1557}
1558
1559void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1560{
1561 event.Enable( CanPaste() );
1562}
1563
1564void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1565{
1566 event.Enable( CanUndo() );
1567}
1568
1569void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1570{
1571 event.Enable( CanRedo() );
1572}
1573
1574void wxTextCtrl::OnInternalIdle()
1575{
1576 wxCursor cursor = m_cursor;
1577 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1578
1579 if (cursor.Ok())
1580 {
1581#ifndef __WXGTK20__
1582 GdkWindow *window = (GdkWindow*) NULL;
1583 if (HasFlag(wxTE_MULTILINE))
1584 window = GTK_TEXT(m_text)->text_area;
1585 else
1586 window = GTK_ENTRY(m_text)->text_area;
1587
1588 if (window)
1589 gdk_window_set_cursor( window, cursor.GetCursor() );
1590
1591 if (!g_globalCursor.Ok())
1592 cursor = *wxSTANDARD_CURSOR;
1593
1594 window = m_widget->window;
1595 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1596 gdk_window_set_cursor( window, cursor.GetCursor() );
1597#endif
1598 }
1599
1600 if (g_delayedFocus == this)
1601 {
1602 if (GTK_WIDGET_REALIZED(m_widget))
1603 {
1604 gtk_widget_grab_focus( m_widget );
1605 g_delayedFocus = NULL;
1606 }
1607 }
1608
1609 if (wxUpdateUIEvent::CanUpdate(this))
1610 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1611}
1612
1613wxSize wxTextCtrl::DoGetBestSize() const
1614{
1615 // FIXME should be different for multi-line controls...
1616 wxSize ret( wxControl::DoGetBestSize() );
1617 return wxSize(80, ret.y);
1618}
1619
1620// ----------------------------------------------------------------------------
1621// freeze/thaw
1622// ----------------------------------------------------------------------------
1623
1624void wxTextCtrl::Freeze()
1625{
1626#ifndef __WXGTK20__
1627 if ( HasFlag(wxTE_MULTILINE) )
1628 {
1629 gtk_text_freeze(GTK_TEXT(m_text));
1630 }
1631#endif
1632}
1633
1634void wxTextCtrl::Thaw()
1635{
1636#ifndef __WXGTK20__
1637 if ( HasFlag(wxTE_MULTILINE) )
1638 {
1639 GTK_TEXT(m_text)->vadj->value = 0.0;
1640
1641 gtk_text_thaw(GTK_TEXT(m_text));
1642 }
1643#endif
1644}
1645
1646// ----------------------------------------------------------------------------
1647// scrolling
1648// ----------------------------------------------------------------------------
1649
1650GtkAdjustment *wxTextCtrl::GetVAdj() const
1651{
1652#ifdef __WXGTK20__
1653 return NULL;
1654#else
1655 return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
1656#endif
1657}
1658
1659bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1660{
1661#ifndef __WXGTK20__
1662 float value = adj->value + diff;
1663
1664 if ( value < 0 )
1665 value = 0;
1666
1667 float upper = adj->upper - adj->page_size;
1668 if ( value > upper )
1669 value = upper;
1670
1671 // did we noticeably change the scroll position?
1672 if ( fabs(adj->value - value) < 0.2 )
1673 {
1674 // well, this is what Robert does in wxScrollBar, so it must be good...
1675 return FALSE;
1676 }
1677
1678 adj->value = value;
1679
1680 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1681
1682#endif
1683 return TRUE;
1684}
1685
1686bool wxTextCtrl::ScrollLines(int lines)
1687{
1688#ifdef __WXGTK20__
1689 return FALSE;
1690#else
1691 GtkAdjustment *adj = GetVAdj();
1692 if ( !adj )
1693 return FALSE;
1694
1695 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1696 static const int KEY_SCROLL_PIXELS = 10;
1697
1698 return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
1699#endif
1700}
1701
1702bool wxTextCtrl::ScrollPages(int pages)
1703{
1704#ifdef __WXGTK20__
1705 return FALSE;
1706#else
1707 GtkAdjustment *adj = GetVAdj();
1708 if ( !adj )
1709 return FALSE;
1710
1711 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1712#endif
1713}
1714
1715
1716// static
1717wxVisualAttributes
1718wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1719{
1720 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1721}
wxWidgets (Impactor)