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