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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#ifndef __WXGTK20__
159 win->UpdateFontIfNeeded();
160#endif // !__WXGTK20__
161
162 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
163 event.SetEventObject( win );
164 event.SetString( win->GetValue() );
165 win->GetEventHandler()->ProcessEvent( event );
166}
167
168//-----------------------------------------------------------------------------
169// "changed" from vertical scrollbar
170//-----------------------------------------------------------------------------
171
172#ifndef __WXGTK20__
173static void
174gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
175{
176 if (!win->m_hasVMT) return;
177
178 if (g_isIdle)
179 wxapp_install_idle_handler();
180
181 win->CalculateScrollbar();
182}
183#endif
184
185// ----------------------------------------------------------------------------
186// redraw callback for multiline text
187// ----------------------------------------------------------------------------
188
189#ifndef __WXGTK20__
190
191// redrawing a GtkText from inside a wxYield() call results in crashes (the
192// text sample shows it in its "Add lines" command which shows wxProgressDialog
193// which implicitly calls wxYield()) so we override GtkText::draw() and simply
194// don't do anything if we're inside wxYield()
195
196extern bool wxIsInsideYield;
197
198extern "C" {
199 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
200}
201
202static GtkDrawCallback gs_gtk_text_draw = NULL;
203
204extern "C"
205void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
206{
207 if ( !wxIsInsideYield )
208 {
209 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
210 _T("infinite recursion in wxgtk_text_draw aborted") );
211
212 gs_gtk_text_draw(widget, rect);
213 }
214}
215
216#endif // __WXGTK20__
217
218//-----------------------------------------------------------------------------
219// wxTextCtrl
220//-----------------------------------------------------------------------------
221
222IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
223
224BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
225 EVT_CHAR(wxTextCtrl::OnChar)
226
227 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
228 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
229 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
230 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
231 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
232
233 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
234 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
235 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
236 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
237 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
238END_EVENT_TABLE()
239
240void wxTextCtrl::Init()
241{
242 m_ignoreNextUpdate =
243 m_modified = FALSE;
244 SetUpdateFont(FALSE);
245 m_text =
246 m_vScrollbar = (GtkWidget *)NULL;
247}
248
249wxTextCtrl::wxTextCtrl( wxWindow *parent,
250 wxWindowID id,
251 const wxString &value,
252 const wxPoint &pos,
253 const wxSize &size,
254 long style,
255 const wxValidator& validator,
256 const wxString &name )
257{
258 Init();
259
260 Create( parent, id, value, pos, size, style, validator, name );
261}
262
263bool wxTextCtrl::Create( wxWindow *parent,
264 wxWindowID id,
265 const wxString &value,
266 const wxPoint &pos,
267 const wxSize &size,
268 long style,
269 const wxValidator& validator,
270 const wxString &name )
271{
272 m_needParent = TRUE;
273 m_acceptsFocus = TRUE;
274
275 if (!PreCreation( parent, pos, size ) ||
276 !CreateBase( parent, id, pos, size, style, validator, name ))
277 {
278 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
279 return FALSE;
280 }
281
282
283 m_vScrollbarVisible = FALSE;
284
285 bool multi_line = (style & wxTE_MULTILINE) != 0;
286
287#ifdef __WXGTK20__
288 GtkTextBuffer *buffer = NULL;
289#endif
290
291 if (multi_line)
292 {
293#ifdef __WXGTK20__
294 // Create view
295 m_text = gtk_text_view_new();
296
297 buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
298
299 // create scrolled window
300 m_widget = gtk_scrolled_window_new( NULL, NULL );
301 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
302 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
303
304 // Insert view into scrolled window
305 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
306
307 // Global settings which can be overridden by tags, I guess.
308 if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
309 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
310 else
311 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
312
313 if (!HasFlag(wxNO_BORDER))
314 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
315
316 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
317#else
318 // create our control ...
319 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
320
321 // ... and put into the upper left hand corner of the table
322 bool bHasHScrollbar = FALSE;
323 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
324 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
325 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
326 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
327 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
328 0, 0);
329
330 // always wrap words
331 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
332
333 // finally, put the vertical scrollbar in the upper right corner
334 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
335 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
336 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
337 GTK_FILL,
338 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
339 0, 0);
340#endif
341 }
342 else
343 {
344 // a single-line text control: no need for scrollbars
345 m_widget =
346 m_text = gtk_entry_new();
347 }
348
349 m_parent->DoAddChild( this );
350
351 m_focusWidget = m_text;
352
353 PostCreation(size);
354
355 if (multi_line)
356 gtk_widget_show(m_text);
357
358#ifndef __WXGTK20__
359 if (multi_line)
360 {
361 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
362 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
363
364 // only initialize gs_gtk_text_draw once, starting from the next the
365 // klass::draw will already be wxgtk_text_draw
366 if ( !gs_gtk_text_draw )
367 {
368 GtkDrawCallback&
369 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
370
371 gs_gtk_text_draw = draw;
372
373 draw = wxgtk_text_draw;
374 }
375 }
376#endif // GTK+ 1.x
377
378 if (!value.IsEmpty())
379 {
380#ifdef __WXGTK20__
381 SetValue( value );
382#else
383
384#if !GTK_CHECK_VERSION(1, 2, 0)
385 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
386 // gtk_editable_insert_text()
387 gtk_widget_realize(m_text);
388#endif // GTK 1.0
389
390 gint tmp = 0;
391#if wxUSE_UNICODE
392 wxWX2MBbuf val = value.mbc_str();
393 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
394#else
395 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
396#endif
397
398 if (multi_line)
399 {
400 // Bring editable's cursor uptodate. Bug in GTK.
401 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
402 }
403
404#endif
405 }
406
407 if (style & wxTE_PASSWORD)
408 {
409 if (!multi_line)
410 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
411 }
412
413 if (style & wxTE_READONLY)
414 {
415 if (!multi_line)
416 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
417#ifdef __WXGTK20__
418 else
419 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
420#else
421 }
422 else
423 {
424 if (multi_line)
425 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
426#endif
427 }
428
429#ifdef __WXGTK20__
430 if (multi_line)
431 {
432 if (style & wxTE_RIGHT)
433 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
434 else if (style & wxTE_CENTRE)
435 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
436 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
437 }
438 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
439#if GTK_CHECK_VERSION(2, 3, 5)
440 else
441 {
442 if (style & wxTE_RIGHT)
443 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
444 else if (style & wxTE_CENTRE)
445 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
446 }
447#endif // gtk+-2.3.5
448#endif // __WXGTK20__
449
450 // We want to be notified about text changes.
451#ifdef __WXGTK20__
452 if (multi_line)
453 {
454 g_signal_connect( G_OBJECT(buffer), "changed",
455 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
456 }
457 else
458#endif
459
460 {
461 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
462 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
463 }
464
465 m_cursor = wxCursor( wxCURSOR_IBEAM );
466
467 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
468 SetDefaultStyle( attrDef );
469
470 return TRUE;
471}
472
473
474void wxTextCtrl::CalculateScrollbar()
475{
476#ifndef __WXGTK20__
477 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
478
479 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
480
481 if (adj->upper - adj->page_size < 0.8)
482 {
483 if (m_vScrollbarVisible)
484 {
485 gtk_widget_hide( m_vScrollbar );
486 m_vScrollbarVisible = FALSE;
487 }
488 }
489 else
490 {
491 if (!m_vScrollbarVisible)
492 {
493 gtk_widget_show( m_vScrollbar );
494 m_vScrollbarVisible = TRUE;
495 }
496 }
497#endif
498}
499
500wxString wxTextCtrl::GetValue() const
501{
502 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
503
504 wxString tmp;
505 if (m_windowStyle & wxTE_MULTILINE)
506 {
507#ifdef __WXGTK20__
508 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
509
510 GtkTextIter start;
511 gtk_text_buffer_get_start_iter( text_buffer, &start );
512 GtkTextIter end;
513 gtk_text_buffer_get_end_iter( text_buffer, &end );
514 gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
515
516#if wxUSE_UNICODE
517 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
518#else
519 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
520#endif
521 tmp = buffer;
522
523 g_free( text );
524#else
525 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
526 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
527 tmp = text;
528 g_free( text );
529#endif
530 }
531 else
532 {
533 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
534 }
535
536 return tmp;
537}
538
539void wxTextCtrl::SetValue( const wxString &value )
540{
541 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
542
543 if (m_windowStyle & wxTE_MULTILINE)
544 {
545#ifdef __WXGTK20__
546
547#if wxUSE_UNICODE
548 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
549#else
550 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
551#endif
552 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
553 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
554
555#else
556 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
557 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
558 len = 0;
559 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
560#endif
561 }
562 else
563 {
564 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
565 }
566
567 // GRG, Jun/2000: Changed this after a lot of discussion in
568 // the lists. wxWidgets 2.2 will have a set of flags to
569 // customize this behaviour.
570 SetInsertionPoint(0);
571
572 m_modified = FALSE;
573}
574
575void wxTextCtrl::WriteText( const wxString &text )
576{
577 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
578
579 if ( text.empty() )
580 return;
581
582 // gtk_text_changed_callback() will set m_modified to true but m_modified
583 // shouldn't be changed by the program writing to the text control itself,
584 // so save the old value and restore when we're done
585 bool oldModified = m_modified;
586
587 if ( m_windowStyle & wxTE_MULTILINE )
588 {
589#ifdef __WXGTK20__
590
591#if wxUSE_UNICODE
592 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
593#else
594 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
595#endif
596 if ( !buffer )
597 {
598 // what else can we do? at least don't crash...
599 return;
600 }
601
602 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
603
604 // TODO: Call whatever is needed to delete the selection.
605 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
606
607 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
608 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
609 if ( adj->value == adj->upper - adj->page_size )
610 {
611 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
612 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
613 }
614#else // GTK 1.x
615 // After cursor movements, gtk_text_get_point() is wrong by one.
616 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
617
618 // always use m_defaultStyle, even if it is empty as otherwise
619 // resetting the style and appending some more text wouldn't work: if
620 // we don't specify the style explicitly, the old style would be used
621 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
622 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
623
624 // we called wxGtkTextInsert with correct font, no need to do anything
625 // in UpdateFontIfNeeded() any longer
626 if ( !text.empty() )
627 {
628 SetUpdateFont(FALSE);
629 }
630
631 // Bring editable's cursor back uptodate.
632 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
633#endif // GTK 1.x/2.0
634 }
635 else // single line
636 {
637 // First remove the selection if there is one
638 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
639
640 // This moves the cursor pos to behind the inserted text.
641 gint len = GET_EDITABLE_POS(m_text);
642
643#ifdef __WXGTK20__
644
645#if wxUSE_UNICODE
646 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
647#else
648 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
649#endif
650 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
651
652#else
653 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
654#endif
655
656 // Bring entry's cursor uptodate.
657 gtk_entry_set_position( GTK_ENTRY(m_text), len );
658 }
659
660 m_modified = oldModified;
661}
662
663void wxTextCtrl::AppendText( const wxString &text )
664{
665 SetInsertionPointEnd();
666 WriteText( text );
667}
668
669wxString wxTextCtrl::GetLineText( long lineNo ) const
670{
671 if (m_windowStyle & wxTE_MULTILINE)
672 {
673#ifndef __WXGTK20__
674 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
675 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
676
677 if (text)
678 {
679 wxString buf(wxT(""));
680 long i;
681 int currentLine = 0;
682 for (i = 0; currentLine != lineNo && text[i]; i++ )
683 if (text[i] == '\n')
684 currentLine++;
685 // Now get the text
686 int j;
687 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
688 buf += text[i];
689
690 g_free( text );
691 return buf;
692 }
693 else
694 {
695 return wxEmptyString;
696 }
697#else
698 GtkTextBuffer *text_buffer;
699 text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
700 GtkTextIter line;
701 gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
702 GtkTextIter end;
703 gtk_text_buffer_get_end_iter(text_buffer,&end );
704 gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
705 wxString result(wxGTK_CONV_BACK(text));
706 g_free(text);
707 return result.BeforeFirst(wxT('\n'));
708#endif
709 }
710 else
711 {
712 if (lineNo == 0) return GetValue();
713 return wxEmptyString;
714 }
715}
716
717void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
718{
719 /* If you implement this, don't forget to update the documentation!
720 * (file docs/latex/wx/text.tex) */
721 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
722}
723
724bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
725{
726 if ( m_windowStyle & wxTE_MULTILINE )
727 {
728 wxString text = GetValue();
729
730 // cast to prevent warning. But pos really should've been unsigned.
731 if( (unsigned long)pos > text.Len() )
732 return FALSE;
733
734 *x=0; // First Col
735 *y=0; // First Line
736
737 const wxChar* stop = text.c_str() + pos;
738 for ( const wxChar *p = text.c_str(); p < stop; p++ )
739 {
740 if (*p == wxT('\n'))
741 {
742 (*y)++;
743 *x=0;
744 }
745 else
746 (*x)++;
747 }
748 }
749 else // single line control
750 {
751 if ( pos <= GTK_ENTRY(m_text)->text_length )
752 {
753 *y = 0;
754 *x = pos;
755 }
756 else
757 {
758 // index out of bounds
759 return FALSE;
760 }
761 }
762
763 return TRUE;
764}
765
766long wxTextCtrl::XYToPosition(long x, long y ) const
767{
768 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
769
770 long pos=0;
771 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
772
773 pos += x;
774 return pos;
775}
776
777int wxTextCtrl::GetLineLength(long lineNo) const
778{
779 wxString str = GetLineText (lineNo);
780 return (int) str.Length();
781}
782
783int wxTextCtrl::GetNumberOfLines() const
784{
785 if (m_windowStyle & wxTE_MULTILINE)
786 {
787#ifdef __WXGTK20__
788 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
789
790 return gtk_text_buffer_get_line_count( buffer );
791#else
792 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
793 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
794
795 if (text)
796 {
797 int currentLine = 0;
798 for (int i = 0; i < len; i++ )
799 {
800 if (text[i] == '\n')
801 currentLine++;
802 }
803 g_free( text );
804
805 // currentLine is 0 based, add 1 to get number of lines
806 return currentLine + 1;
807 }
808 else
809 {
810 return 0;
811 }
812#endif
813 }
814 else
815 {
816 return 1;
817 }
818}
819
820void wxTextCtrl::SetInsertionPoint( long pos )
821{
822 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
823
824 if ( IsMultiLine() )
825 {
826#ifdef __WXGTK20__
827 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
828 GtkTextIter iter;
829 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
830 gtk_text_buffer_place_cursor( text_buffer, &iter );
831 gtk_text_view_scroll_mark_onscreen
832 (
833 GTK_TEXT_VIEW(m_text),
834 gtk_text_buffer_get_insert( text_buffer )
835 );
836#else // GTK+ 1.x
837 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
838 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
839
840 /* we fake a set_point by inserting and deleting. as the user
841 isn't supposed to get to know about this non-sense, we
842 disconnect so that no events are sent to the user program. */
843
844 gint tmp = (gint)pos;
845 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
846 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
847
848 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
849 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
850
851 // bring editable's cursor uptodate. Bug in GTK.
852 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
853#endif // GTK+ 2/1
854 }
855 else
856 {
857 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
858
859 // Bring editable's cursor uptodate. Bug in GTK.
860 SET_EDITABLE_POS(m_text, (guint32)pos);
861 }
862}
863
864void wxTextCtrl::SetInsertionPointEnd()
865{
866 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
867
868 if (m_windowStyle & wxTE_MULTILINE)
869 {
870#ifdef __WXGTK20__
871 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
872 GtkTextIter end;
873 gtk_text_buffer_get_end_iter( text_buffer, &end );
874 gtk_text_buffer_place_cursor( text_buffer, &end );
875#else
876 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
877#endif
878 }
879 else
880 {
881 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
882 }
883}
884
885void wxTextCtrl::SetEditable( bool editable )
886{
887 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
888
889 if (m_windowStyle & wxTE_MULTILINE)
890 {
891#ifdef __WXGTK20__
892 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
893#else
894 gtk_text_set_editable( GTK_TEXT(m_text), editable );
895#endif
896 }
897 else
898 {
899 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
900 }
901}
902
903bool wxTextCtrl::Enable( bool enable )
904{
905 if (!wxWindowBase::Enable(enable))
906 {
907 // nothing to do
908 return FALSE;
909 }
910
911 if (m_windowStyle & wxTE_MULTILINE)
912 {
913#ifdef __WXGTK20__
914 SetEditable( enable );
915#else
916 gtk_text_set_editable( GTK_TEXT(m_text), enable );
917 OnParentEnable(enable);
918#endif
919 }
920 else
921 {
922 gtk_widget_set_sensitive( m_text, enable );
923 }
924
925 return TRUE;
926}
927
928// wxGTK-specific: called recursively by Enable,
929// to give widgets an oppprtunity to correct their colours after they
930// have been changed by Enable
931void wxTextCtrl::OnParentEnable( bool enable )
932{
933 // If we have a custom background colour, we use this colour in both
934 // disabled and enabled mode, or we end up with a different colour under the
935 // text.
936 wxColour oldColour = GetBackgroundColour();
937 if (oldColour.Ok())
938 {
939 // Need to set twice or it'll optimize the useful stuff out
940 if (oldColour == * wxWHITE)
941 SetBackgroundColour(*wxBLACK);
942 else
943 SetBackgroundColour(*wxWHITE);
944 SetBackgroundColour(oldColour);
945 }
946}
947
948void wxTextCtrl::MarkDirty()
949{
950 m_modified = TRUE;
951}
952
953void wxTextCtrl::DiscardEdits()
954{
955 m_modified = FALSE;
956}
957
958// ----------------------------------------------------------------------------
959// max text length support
960// ----------------------------------------------------------------------------
961
962void wxTextCtrl::IgnoreNextTextUpdate()
963{
964 m_ignoreNextUpdate = TRUE;
965}
966
967bool wxTextCtrl::IgnoreTextUpdate()
968{
969 if ( m_ignoreNextUpdate )
970 {
971 m_ignoreNextUpdate = FALSE;
972
973 return TRUE;
974 }
975
976 return FALSE;
977}
978
979void wxTextCtrl::SetMaxLength(unsigned long len)
980{
981 if ( !HasFlag(wxTE_MULTILINE) )
982 {
983 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
984
985 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
986 // we had tried to enter more text than allowed by max text length and
987 // the text wasn't really changed
988 //
989 // to detect this and generate TEXT_MAXLEN event instead of
990 // TEXT_CHANGED one in this case we also catch "insert_text" signal
991 //
992 // when max len is set to 0 we disconnect our handler as it means that
993 // we shouldn't check anything any more
994 if ( len )
995 {
996 gtk_signal_connect( GTK_OBJECT(m_text),
997 "insert_text",
998 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
999 (gpointer)this);
1000 }
1001 else // no checking
1002 {
1003 gtk_signal_disconnect_by_func
1004 (
1005 GTK_OBJECT(m_text),
1006 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1007 (gpointer)this
1008 );
1009 }
1010 }
1011}
1012
1013void wxTextCtrl::SetSelection( long from, long to )
1014{
1015 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1016
1017 if (from == -1 && to == -1)
1018 {
1019 from = 0;
1020 to = GetValue().Length();
1021 }
1022
1023#ifndef __WXGTK20__
1024 if ( (m_windowStyle & wxTE_MULTILINE) &&
1025 !GTK_TEXT(m_text)->line_start_cache )
1026 {
1027 // tell the programmer that it didn't work
1028 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1029 return;
1030 }
1031#endif
1032
1033 if (m_windowStyle & wxTE_MULTILINE)
1034 {
1035#ifdef __WXGTK20__
1036 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1037
1038 GtkTextIter fromi, toi;
1039 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1040 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1041
1042 gtk_text_buffer_place_cursor( buf, &toi );
1043 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1044#else
1045 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1046#endif
1047 }
1048 else
1049 {
1050 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1051 }
1052}
1053
1054void wxTextCtrl::ShowPosition( long pos )
1055{
1056 if (m_windowStyle & wxTE_MULTILINE)
1057 {
1058#ifdef __WXGTK20__
1059 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1060 GtkTextIter iter;
1061 gtk_text_buffer_get_start_iter( buf, &iter );
1062 gtk_text_iter_set_offset( &iter, pos );
1063 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1064 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1065#else // GTK 1.x
1066 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1067 float totalLines = (float) GetNumberOfLines();
1068 long posX;
1069 long posY;
1070 PositionToXY(pos, &posX, &posY);
1071 float posLine = (float) posY;
1072 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1073 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1074#endif // GTK 1.x/2.x
1075 }
1076}
1077
1078#ifdef __WXGTK20__
1079
1080wxTextCtrlHitTestResult
1081wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1082{
1083 if ( !IsMultiLine() )
1084 {
1085 // not supported
1086 return wxTE_HT_UNKNOWN;
1087 }
1088
1089 int x, y;
1090 gtk_text_view_window_to_buffer_coords
1091 (
1092 GTK_TEXT_VIEW(m_text),
1093 GTK_TEXT_WINDOW_TEXT,
1094 pt.x, pt.y,
1095 &x, &y
1096 );
1097
1098 GtkTextIter iter;
1099 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1100 if ( pos )
1101 *pos = gtk_text_iter_get_offset(&iter);
1102
1103 return wxTE_HT_ON_TEXT;
1104}
1105
1106#endif // __WXGTK20__
1107
1108long wxTextCtrl::GetInsertionPoint() const
1109{
1110 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1111
1112#ifdef __WXGTK20__
1113 if (m_windowStyle & wxTE_MULTILINE)
1114 {
1115 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1116
1117 // There is no direct accessor for the cursor, but
1118 // internally, the cursor is the "mark" called
1119 // "insert" in the text view's btree structure.
1120
1121 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1122 GtkTextIter cursor;
1123 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1124
1125 return gtk_text_iter_get_offset( &cursor );
1126 }
1127 else
1128#endif
1129 {
1130 return (long) GET_EDITABLE_POS(m_text);
1131 }
1132}
1133
1134long wxTextCtrl::GetLastPosition() const
1135{
1136 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1137
1138 int pos = 0;
1139
1140 if (m_windowStyle & wxTE_MULTILINE)
1141 {
1142#ifdef __WXGTK20__
1143 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1144 GtkTextIter end;
1145 gtk_text_buffer_get_end_iter( text_buffer, &end );
1146
1147 pos = gtk_text_iter_get_offset( &end );
1148#else
1149 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1150#endif
1151 }
1152 else
1153 {
1154 pos = GTK_ENTRY(m_text)->text_length;
1155 }
1156
1157 return (long)pos;
1158}
1159
1160void wxTextCtrl::Remove( long from, long to )
1161{
1162 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1163
1164#ifdef __WXGTK20__
1165 if (m_windowStyle & wxTE_MULTILINE)
1166 {
1167 GtkTextBuffer *
1168 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1169
1170 GtkTextIter fromi, toi;
1171 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1172 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1173
1174 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1175 }
1176 else // single line
1177#endif
1178 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1179}
1180
1181void wxTextCtrl::Replace( long from, long to, const wxString &value )
1182{
1183 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1184
1185 Remove( from, to );
1186
1187 if (!value.IsEmpty())
1188 {
1189#ifdef __WXGTK20__
1190 SetInsertionPoint( from );
1191 WriteText( value );
1192#else // GTK 1.x
1193 gint pos = (gint)from;
1194#if wxUSE_UNICODE
1195 wxWX2MBbuf buf = value.mbc_str();
1196 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1197#else
1198 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1199#endif // wxUSE_UNICODE
1200#endif // GTK 1.x/2.x
1201 }
1202}
1203
1204void wxTextCtrl::Cut()
1205{
1206 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1207
1208#ifdef __WXGTK20__
1209 if (m_windowStyle & wxTE_MULTILINE)
1210 g_signal_emit_by_name(m_text, "cut-clipboard");
1211 else
1212#endif
1213 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1214}
1215
1216void wxTextCtrl::Copy()
1217{
1218 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1219
1220#ifdef __WXGTK20__
1221 if (m_windowStyle & wxTE_MULTILINE)
1222 g_signal_emit_by_name(m_text, "copy-clipboard");
1223 else
1224#endif
1225 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1226}
1227
1228void wxTextCtrl::Paste()
1229{
1230 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1231
1232#ifdef __WXGTK20__
1233 if (m_windowStyle & wxTE_MULTILINE)
1234 g_signal_emit_by_name(m_text, "paste-clipboard");
1235 else
1236#endif
1237 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1238}
1239
1240// Undo/redo
1241void wxTextCtrl::Undo()
1242{
1243 // TODO
1244 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1245}
1246
1247void wxTextCtrl::Redo()
1248{
1249 // TODO
1250 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1251}
1252
1253bool wxTextCtrl::CanUndo() const
1254{
1255 // TODO
1256 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1257 return FALSE;
1258}
1259
1260bool wxTextCtrl::CanRedo() const
1261{
1262 // TODO
1263 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1264 return FALSE;
1265}
1266
1267// If the return values from and to are the same, there is no
1268// selection.
1269void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1270{
1271 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1272
1273 gint from = -1;
1274 gint to = -1;
1275 bool haveSelection = FALSE;
1276
1277#ifdef __WXGTK20__
1278 if (m_windowStyle & wxTE_MULTILINE)
1279 {
1280 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1281 GtkTextIter ifrom, ito;
1282 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1283 {
1284 haveSelection = TRUE;
1285 from = gtk_text_iter_get_offset(&ifrom);
1286 to = gtk_text_iter_get_offset(&ito);
1287 }
1288 }
1289 else // not multi-line
1290 {
1291 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1292 &from, &to) )
1293 {
1294 haveSelection = TRUE;
1295 }
1296 }
1297#else // not GTK2
1298 if ( (GTK_EDITABLE(m_text)->has_selection) )
1299 {
1300 haveSelection = TRUE;
1301 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1302 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1303 }
1304#endif
1305
1306 if (! haveSelection )
1307 from = to = GetInsertionPoint();
1308
1309 if ( from > to )
1310 {
1311 // exchange them to be compatible with wxMSW
1312 gint tmp = from;
1313 from = to;
1314 to = tmp;
1315 }
1316
1317 if ( fromOut )
1318 *fromOut = from;
1319 if ( toOut )
1320 *toOut = to;
1321}
1322
1323
1324bool wxTextCtrl::IsEditable() const
1325{
1326 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1327
1328#ifdef __WXGTK20__
1329 if (m_windowStyle & wxTE_MULTILINE)
1330 {
1331 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1332 }
1333 else
1334 {
1335 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1336 }
1337#else
1338 return GTK_EDITABLE(m_text)->editable;
1339#endif
1340}
1341
1342bool wxTextCtrl::IsModified() const
1343{
1344 return m_modified;
1345}
1346
1347void wxTextCtrl::Clear()
1348{
1349 SetValue( wxT("") );
1350}
1351
1352void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1353{
1354 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1355
1356 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1357 {
1358 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1359 event.SetEventObject(this);
1360 event.SetString(GetValue());
1361 if (GetEventHandler()->ProcessEvent(event)) return;
1362 }
1363
1364 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1365 {
1366 // This will invoke the dialog default action, such
1367 // as the clicking the default button.
1368
1369 wxWindow *top_frame = m_parent;
1370 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1371 top_frame = top_frame->GetParent();
1372
1373 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1374 {
1375 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1376
1377 if (window->default_widget)
1378 {
1379 gtk_widget_activate (window->default_widget);
1380 return;
1381 }
1382 }
1383 }
1384
1385 key_event.Skip();
1386}
1387
1388GtkWidget* wxTextCtrl::GetConnectWidget()
1389{
1390 return GTK_WIDGET(m_text);
1391}
1392
1393bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1394{
1395 if (m_windowStyle & wxTE_MULTILINE)
1396 {
1397#ifdef __WXGTK20__
1398 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1399#else
1400 return (window == GTK_TEXT(m_text)->text_area);
1401#endif
1402 }
1403 else
1404 {
1405 return (window == GTK_ENTRY(m_text)->text_area);
1406 }
1407}
1408
1409// the font will change for subsequent text insertiongs
1410bool wxTextCtrl::SetFont( const wxFont &font )
1411{
1412 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1413
1414 if ( !wxTextCtrlBase::SetFont(font) )
1415 {
1416 // font didn't change, nothing to do
1417 return FALSE;
1418 }
1419
1420 if ( m_windowStyle & wxTE_MULTILINE )
1421 {
1422 SetUpdateFont(TRUE);
1423
1424 m_defaultStyle.SetFont(font);
1425
1426 ChangeFontGlobally();
1427 }
1428
1429 return TRUE;
1430}
1431
1432void wxTextCtrl::ChangeFontGlobally()
1433{
1434 // this method is very inefficient and hence should be called as rarely as
1435 // possible!
1436 //
1437 // TODO: it can be implemented much more efficiently for GTK2
1438#ifndef __WXGTK20__
1439 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1440
1441 _T("shouldn't be called for single line controls") );
1442#else
1443 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1444 _T("shouldn't be called for single line controls") );
1445#endif
1446
1447 wxString value = GetValue();
1448 if ( !value.IsEmpty() )
1449 {
1450 SetUpdateFont(FALSE);
1451
1452 Clear();
1453 AppendText(value);
1454 }
1455}
1456
1457#ifndef __WXGTK20__
1458
1459void wxTextCtrl::UpdateFontIfNeeded()
1460{
1461 if ( m_updateFont )
1462 ChangeFontGlobally();
1463}
1464
1465#endif // GTK+ 1.x
1466
1467bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1468{
1469 if ( !wxControl::SetForegroundColour(colour) )
1470 return FALSE;
1471
1472 // update default fg colour too
1473 m_defaultStyle.SetTextColour(colour);
1474
1475 return TRUE;
1476}
1477
1478bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1479{
1480 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1481
1482 if ( !wxControl::SetBackgroundColour( colour ) )
1483 return FALSE;
1484
1485 if (!m_widget->window)
1486 return FALSE;
1487
1488 if (!m_backgroundColour.Ok())
1489 return FALSE;
1490
1491 if (m_windowStyle & wxTE_MULTILINE)
1492 {
1493#ifndef __WXGTK20__
1494 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1495 if (!window)
1496 return FALSE;
1497 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1498 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1499 gdk_window_clear( window );
1500#endif
1501 }
1502
1503 // change active background color too
1504 m_defaultStyle.SetBackgroundColour( colour );
1505
1506 return TRUE;
1507}
1508
1509bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1510{
1511 if ( m_windowStyle & wxTE_MULTILINE )
1512 {
1513 if ( style.IsDefault() )
1514 {
1515 // nothing to do
1516 return TRUE;
1517 }
1518#ifdef __WXGTK20__
1519 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1520 gint l = gtk_text_buffer_get_char_count( text_buffer );
1521
1522 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1523 _T("invalid range in wxTextCtrl::SetStyle") );
1524
1525 GtkTextIter starti, endi;
1526 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1527 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1528
1529 // use the attributes from style which are set in it and fall back
1530 // first to the default style and then to the text control default
1531 // colours for the others
1532 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1533
1534 PangoFontDescription *font_description = attr.HasFont()
1535 ? attr.GetFont().GetNativeFontInfo()->description
1536 : NULL;
1537
1538 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1539 : NULL;
1540
1541 GdkColor *colBg = attr.HasBackgroundColour()
1542 ? attr.GetBackgroundColour().GetColor()
1543 : NULL;
1544
1545 GtkTextTag *tag;
1546 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1547 "foreground-gdk", colFg,
1548 "background-gdk", colBg, NULL );
1549 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1550
1551 return TRUE;
1552#else
1553 // VERY dirty way to do that - removes the required text and re-adds it
1554 // with styling (FIXME)
1555
1556 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1557
1558 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1559 _T("invalid range in wxTextCtrl::SetStyle") );
1560
1561 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1562 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1563 wxString tmp(text,*wxConvCurrent);
1564 g_free( text );
1565
1566 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1567 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1568
1569#if wxUSE_UNICODE
1570 wxWX2MBbuf buf = tmp.mbc_str();
1571 const char *txt = buf;
1572 size_t txtlen = strlen(buf);
1573#else
1574 const char *txt = tmp;
1575 size_t txtlen = tmp.length();
1576#endif
1577
1578 // use the attributes from style which are set in it and fall back
1579 // first to the default style and then to the text control default
1580 // colours for the others
1581 wxGtkTextInsert(m_text,
1582 wxTextAttr::Combine(style, m_defaultStyle, this),
1583 txt,
1584 txtlen);
1585
1586 /* does not seem to help under GTK+ 1.2 !!!
1587 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1588 SetInsertionPoint( old_pos );
1589#endif
1590 return TRUE;
1591 }
1592 else // singe line
1593 {
1594 // cannot do this for GTK+'s Entry widget
1595 return FALSE;
1596 }
1597}
1598
1599void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1600{
1601 gtk_widget_modify_style(m_text, style);
1602}
1603
1604void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1605{
1606 Cut();
1607}
1608
1609void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1610{
1611 Copy();
1612}
1613
1614void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1615{
1616 Paste();
1617}
1618
1619void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1620{
1621 Undo();
1622}
1623
1624void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1625{
1626 Redo();
1627}
1628
1629void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1630{
1631 event.Enable( CanCut() );
1632}
1633
1634void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1635{
1636 event.Enable( CanCopy() );
1637}
1638
1639void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1640{
1641 event.Enable( CanPaste() );
1642}
1643
1644void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1645{
1646 event.Enable( CanUndo() );
1647}
1648
1649void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1650{
1651 event.Enable( CanRedo() );
1652}
1653
1654void wxTextCtrl::OnInternalIdle()
1655{
1656 wxCursor cursor = m_cursor;
1657 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1658
1659 if (cursor.Ok())
1660 {
1661#ifndef __WXGTK20__
1662 GdkWindow *window = (GdkWindow*) NULL;
1663 if (HasFlag(wxTE_MULTILINE))
1664 window = GTK_TEXT(m_text)->text_area;
1665 else
1666 window = GTK_ENTRY(m_text)->text_area;
1667
1668 if (window)
1669 gdk_window_set_cursor( window, cursor.GetCursor() );
1670
1671 if (!g_globalCursor.Ok())
1672 cursor = *wxSTANDARD_CURSOR;
1673
1674 window = m_widget->window;
1675 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1676 gdk_window_set_cursor( window, cursor.GetCursor() );
1677#endif
1678 }
1679
1680 if (g_delayedFocus == this)
1681 {
1682 if (GTK_WIDGET_REALIZED(m_widget))
1683 {
1684 gtk_widget_grab_focus( m_widget );
1685 g_delayedFocus = NULL;
1686 }
1687 }
1688
1689 if (wxUpdateUIEvent::CanUpdate(this))
1690 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1691}
1692
1693wxSize wxTextCtrl::DoGetBestSize() const
1694{
1695 // FIXME should be different for multi-line controls...
1696 wxSize ret( wxControl::DoGetBestSize() );
1697 wxSize best(80, ret.y);
1698 CacheBestSize(best);
1699 return best;
1700}
1701
1702// ----------------------------------------------------------------------------
1703// freeze/thaw
1704// ----------------------------------------------------------------------------
1705
1706void wxTextCtrl::Freeze()
1707{
1708#ifndef __WXGTK20__
1709 if ( HasFlag(wxTE_MULTILINE) )
1710 {
1711 gtk_text_freeze(GTK_TEXT(m_text));
1712 }
1713#endif
1714}
1715
1716void wxTextCtrl::Thaw()
1717{
1718#ifndef __WXGTK20__
1719 if ( HasFlag(wxTE_MULTILINE) )
1720 {
1721 GTK_TEXT(m_text)->vadj->value = 0.0;
1722
1723 gtk_text_thaw(GTK_TEXT(m_text));
1724 }
1725#endif
1726}
1727
1728// ----------------------------------------------------------------------------
1729// scrolling
1730// ----------------------------------------------------------------------------
1731
1732GtkAdjustment *wxTextCtrl::GetVAdj() const
1733{
1734 if ( !IsMultiLine() )
1735 return NULL;
1736
1737#ifdef __WXGTK20__
1738 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
1739#else
1740 return GTK_TEXT(m_text)->vadj;
1741#endif
1742}
1743
1744bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1745{
1746 float value = adj->value + diff;
1747
1748 if ( value < 0 )
1749 value = 0;
1750
1751 float upper = adj->upper - adj->page_size;
1752 if ( value > upper )
1753 value = upper;
1754
1755 // did we noticeably change the scroll position?
1756 if ( fabs(adj->value - value) < 0.2 )
1757 {
1758 // well, this is what Robert does in wxScrollBar, so it must be good...
1759 return FALSE;
1760 }
1761
1762 adj->value = value;
1763
1764#ifdef __WXGTK20__
1765 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
1766#else
1767 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1768#endif
1769
1770 return TRUE;
1771}
1772
1773bool wxTextCtrl::ScrollLines(int lines)
1774{
1775 GtkAdjustment *adj = GetVAdj();
1776 if ( !adj )
1777 return FALSE;
1778
1779#ifdef __WXGTK20__
1780 int diff = (int)ceil(lines*adj->step_increment);
1781#else
1782 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1783 int diff = 10*lines;
1784#endif
1785
1786 return DoScroll(adj, diff);
1787}
1788
1789bool wxTextCtrl::ScrollPages(int pages)
1790{
1791 GtkAdjustment *adj = GetVAdj();
1792 if ( !adj )
1793 return FALSE;
1794
1795 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1796}
1797
1798
1799// static
1800wxVisualAttributes
1801wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1802{
1803 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1804}
wxWidgets (Impactor)