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1/////////////////////////////////////////////////////////////////////////////
2// Name: textctrl.cpp
3// Purpose:
4// Author: Robert Roebling
5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11#pragma implementation "textctrl.h"
12#endif
13
14// For compilers that support precompilation, includes "wx.h".
15#include "wx/wxprec.h"
16
17#include "wx/textctrl.h"
18#include "wx/utils.h"
19#include "wx/intl.h"
20#include "wx/log.h"
21#include "wx/settings.h"
22#include "wx/panel.h"
23#include "wx/strconv.h"
24#include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
25
26#include <sys/types.h>
27#include <sys/stat.h>
28#include <ctype.h>
29#include <math.h> // for fabs
30
31#include "wx/gtk/private.h"
32#include <gdk/gdkkeysyms.h>
33
34//-----------------------------------------------------------------------------
35// idle system
36//-----------------------------------------------------------------------------
37
38extern void wxapp_install_idle_handler();
39extern bool g_isIdle;
40
41//-----------------------------------------------------------------------------
42// data
43//-----------------------------------------------------------------------------
44
45extern bool g_blockEventsOnDrag;
46extern wxCursor g_globalCursor;
47extern wxWindowGTK *g_delayedFocus;
48
49// ----------------------------------------------------------------------------
50// helpers
51// ----------------------------------------------------------------------------
52
53#ifdef __WXGTK20__
54static void wxGtkTextInsert(GtkWidget *text,
55 GtkTextBuffer *text_buffer,
56 const wxTextAttr& attr,
57 wxCharBuffer buffer)
58
59{
60 PangoFontDescription *font_description = attr.HasFont()
61 ? attr.GetFont().GetNativeFontInfo()->description
62 : NULL;
63
64 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
65 : NULL;
66
67 GdkColor *colBg = attr.HasBackgroundColour()
68 ? attr.GetBackgroundColour().GetColor()
69 : NULL;
70
71 GtkTextTag *tag;
72 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
73 "foreground-gdk", colFg,
74 "background-gdk", colBg, NULL );
75
76 GtkTextIter iter;
77 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
78 gtk_text_buffer_get_insert (text_buffer) );
79
80 gtk_text_buffer_insert_with_tags( text_buffer, &iter, buffer, strlen(buffer), tag, NULL );
81}
82#else
83static void wxGtkTextInsert(GtkWidget *text,
84 const wxTextAttr& attr,
85 const char *txt,
86 size_t len)
87{
88 GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
89 : NULL;
90
91 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
92 : NULL;
93
94 GdkColor *colBg = attr.HasBackgroundColour()
95 ? attr.GetBackgroundColour().GetColor()
96 : NULL;
97
98 gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
99}
100#endif // GTK 1.x
101
102// ----------------------------------------------------------------------------
103// "insert_text" for GtkEntry
104// ----------------------------------------------------------------------------
105
106static void
107gtk_insert_text_callback(GtkEditable *editable,
108 const gchar *new_text,
109 gint new_text_length,
110 gint *position,
111 wxTextCtrl *win)
112{
113 if (g_isIdle)
114 wxapp_install_idle_handler();
115
116 // we should only be called if we have a max len limit at all
117 GtkEntry *entry = GTK_ENTRY (editable);
118
119 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
120
121 // check that we don't overflow the max length limit
122 //
123 // FIXME: this doesn't work when we paste a string which is going to be
124 // truncated
125 if ( entry->text_length == entry->text_max_length )
126 {
127 // we don't need to run the base class version at all
128 gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
129
130 // remember that the next changed signal is to be ignored to avoid
131 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
132 win->IgnoreNextTextUpdate();
133
134 // and generate the correct one ourselves
135 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
136 event.SetEventObject(win);
137 event.SetString(win->GetValue());
138 win->GetEventHandler()->ProcessEvent( event );
139 }
140}
141
142//-----------------------------------------------------------------------------
143// "changed"
144//-----------------------------------------------------------------------------
145
146static void
147gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
148{
149 if ( win->IgnoreTextUpdate() )
150 return;
151
152 if (!win->m_hasVMT) return;
153
154 if (g_isIdle)
155 wxapp_install_idle_handler();
156
157 win->SetModified();
158 win->UpdateFontIfNeeded();
159
160 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
161 event.SetEventObject( win );
162 event.SetString( win->GetValue() );
163 win->GetEventHandler()->ProcessEvent( event );
164}
165
166//-----------------------------------------------------------------------------
167// "changed" from vertical scrollbar
168//-----------------------------------------------------------------------------
169
170#ifndef __WXGTK20__
171static void
172gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
173{
174 if (!win->m_hasVMT) return;
175
176 if (g_isIdle)
177 wxapp_install_idle_handler();
178
179 win->CalculateScrollbar();
180}
181#endif
182
183// ----------------------------------------------------------------------------
184// redraw callback for multiline text
185// ----------------------------------------------------------------------------
186
187#ifndef __WXGTK20__
188
189// redrawing a GtkText from inside a wxYield() call results in crashes (the
190// text sample shows it in its "Add lines" command which shows wxProgressDialog
191// which implicitly calls wxYield()) so we override GtkText::draw() and simply
192// don't do anything if we're inside wxYield()
193
194extern bool wxIsInsideYield;
195
196extern "C" {
197 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
198}
199
200static GtkDrawCallback gs_gtk_text_draw = NULL;
201
202extern "C"
203void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
204{
205 if ( !wxIsInsideYield )
206 {
207 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
208 _T("infinite recursion in wxgtk_text_draw aborted") );
209
210 gs_gtk_text_draw(widget, rect);
211 }
212}
213
214#endif // __WXGTK20__
215
216//-----------------------------------------------------------------------------
217// wxTextCtrl
218//-----------------------------------------------------------------------------
219
220IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
221
222BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
223 EVT_CHAR(wxTextCtrl::OnChar)
224
225 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
226 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
227 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
228 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
229 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
230
231 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
232 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
233 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
234 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
235 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
236END_EVENT_TABLE()
237
238void wxTextCtrl::Init()
239{
240 m_ignoreNextUpdate =
241 m_modified = FALSE;
242 m_updateFont = FALSE;
243 m_text =
244 m_vScrollbar = (GtkWidget *)NULL;
245}
246
247wxTextCtrl::wxTextCtrl( wxWindow *parent,
248 wxWindowID id,
249 const wxString &value,
250 const wxPoint &pos,
251 const wxSize &size,
252 long style,
253 const wxValidator& validator,
254 const wxString &name )
255{
256 Init();
257
258 Create( parent, id, value, pos, size, style, validator, name );
259}
260
261bool wxTextCtrl::Create( wxWindow *parent,
262 wxWindowID id,
263 const wxString &value,
264 const wxPoint &pos,
265 const wxSize &size,
266 long style,
267 const wxValidator& validator,
268 const wxString &name )
269{
270 m_needParent = TRUE;
271 m_acceptsFocus = TRUE;
272
273 if (!PreCreation( parent, pos, size ) ||
274 !CreateBase( parent, id, pos, size, style, validator, name ))
275 {
276 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
277 return FALSE;
278 }
279
280
281 m_vScrollbarVisible = FALSE;
282
283 bool multi_line = (style & wxTE_MULTILINE) != 0;
284
285#ifdef __WXGTK20__
286 GtkTextBuffer *buffer = NULL;
287#endif
288
289 if (multi_line)
290 {
291#ifdef __WXGTK20__
292 // Create view
293 m_text = gtk_text_view_new();
294
295 buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
296
297 // create scrolled window
298 m_widget = gtk_scrolled_window_new( NULL, NULL );
299 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
300 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
301
302 // Insert view into scrolled window
303 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
304
305 // Global settings which can be overridden by tags, I guess.
306 if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
307 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
308 else
309 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
310
311 if (!HasFlag(wxNO_BORDER))
312 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
313
314 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
315#else
316 // create our control ...
317 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
318
319 // ... and put into the upper left hand corner of the table
320 bool bHasHScrollbar = FALSE;
321 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
322 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
323 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
324 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
325 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
326 0, 0);
327
328 // always wrap words
329 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
330
331 // finally, put the vertical scrollbar in the upper right corner
332 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
333 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
334 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
335 GTK_FILL,
336 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
337 0, 0);
338#endif
339 }
340 else
341 {
342 // a single-line text control: no need for scrollbars
343 m_widget =
344 m_text = gtk_entry_new();
345 }
346
347 m_parent->DoAddChild( this );
348
349 m_focusWidget = m_text;
350
351 PostCreation(size);
352
353 if (multi_line)
354 gtk_widget_show(m_text);
355
356#ifndef __WXGTK20__
357 if (multi_line)
358 {
359 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
360 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
361
362 // only initialize gs_gtk_text_draw once, starting from the next the
363 // klass::draw will already be wxgtk_text_draw
364 if ( !gs_gtk_text_draw )
365 {
366 GtkDrawCallback&
367 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
368
369 gs_gtk_text_draw = draw;
370
371 draw = wxgtk_text_draw;
372 }
373 }
374#endif // GTK+ 1.x
375
376 if (!value.IsEmpty())
377 {
378#ifdef __WXGTK20__
379 SetValue( value );
380#else
381
382#if !GTK_CHECK_VERSION(1, 2, 0)
383 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
384 // gtk_editable_insert_text()
385 gtk_widget_realize(m_text);
386#endif // GTK 1.0
387
388 gint tmp = 0;
389#if wxUSE_UNICODE
390 wxWX2MBbuf val = value.mbc_str();
391 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
392#else
393 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
394#endif
395
396 if (multi_line)
397 {
398 // Bring editable's cursor uptodate. Bug in GTK.
399 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
400 }
401
402#endif
403 }
404
405 if (style & wxTE_PASSWORD)
406 {
407 if (!multi_line)
408 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
409 }
410
411 if (style & wxTE_READONLY)
412 {
413 if (!multi_line)
414 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
415#ifdef __WXGTK20__
416 else
417 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
418#else
419 }
420 else
421 {
422 if (multi_line)
423 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
424#endif
425 }
426
427#ifdef __WXGTK20__
428 if (multi_line)
429 {
430 if (style & wxTE_RIGHT)
431 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
432 else if (style & wxTE_CENTRE)
433 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
434 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
435 }
436 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
437#if GTK_CHECK_VERSION(2, 3, 5)
438 else
439 {
440 if (style & wxTE_RIGHT)
441 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
442 else if (style & wxTE_CENTRE)
443 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
444 }
445#endif // gtk+-2.3.5
446#endif // __WXGTK20__
447
448 // We want to be notified about text changes.
449#ifdef __WXGTK20__
450 if (multi_line)
451 {
452 g_signal_connect( G_OBJECT(buffer), "changed",
453 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
454 }
455 else
456#endif
457
458 {
459 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
460 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
461 }
462
463 m_cursor = wxCursor( wxCURSOR_IBEAM );
464
465 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
466 SetDefaultStyle( attrDef );
467
468 return TRUE;
469}
470
471
472void wxTextCtrl::CalculateScrollbar()
473{
474#ifndef __WXGTK20__
475 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
476
477 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
478
479 if (adj->upper - adj->page_size < 0.8)
480 {
481 if (m_vScrollbarVisible)
482 {
483 gtk_widget_hide( m_vScrollbar );
484 m_vScrollbarVisible = FALSE;
485 }
486 }
487 else
488 {
489 if (!m_vScrollbarVisible)
490 {
491 gtk_widget_show( m_vScrollbar );
492 m_vScrollbarVisible = TRUE;
493 }
494 }
495#endif
496}
497
498wxString wxTextCtrl::GetValue() const
499{
500 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
501
502 wxString tmp;
503 if (m_windowStyle & wxTE_MULTILINE)
504 {
505#ifdef __WXGTK20__
506 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
507
508 GtkTextIter start;
509 gtk_text_buffer_get_start_iter( text_buffer, &start );
510 GtkTextIter end;
511 gtk_text_buffer_get_end_iter( text_buffer, &end );
512 gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
513
514#if wxUSE_UNICODE
515 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
516#else
517 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
518#endif
519 tmp = buffer;
520
521 g_free( text );
522#else
523 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
524 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
525 tmp = text;
526 g_free( text );
527#endif
528 }
529 else
530 {
531 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
532 }
533
534 return tmp;
535}
536
537void wxTextCtrl::SetValue( const wxString &value )
538{
539 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
540
541 if (m_windowStyle & wxTE_MULTILINE)
542 {
543#ifdef __WXGTK20__
544
545#if wxUSE_UNICODE
546 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
547#else
548 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
549#endif
550 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
551 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
552
553#else
554 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
555 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
556 len = 0;
557 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
558#endif
559 }
560 else
561 {
562 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
563 }
564
565 // GRG, Jun/2000: Changed this after a lot of discussion in
566 // the lists. wxWidgets 2.2 will have a set of flags to
567 // customize this behaviour.
568 SetInsertionPoint(0);
569
570 m_modified = FALSE;
571}
572
573void wxTextCtrl::WriteText( const wxString &text )
574{
575 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
576
577 if ( text.empty() )
578 return;
579
580 if ( m_windowStyle & wxTE_MULTILINE )
581 {
582#ifdef __WXGTK20__
583
584#if wxUSE_UNICODE
585 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
586#else
587 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
588#endif
589 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
590
591 // TODO: Call whatever is needed to delete the selection.
592 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
593
594 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
595 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
596 if ( adj->value == adj->upper - adj->page_size )
597 {
598 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
599 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
600 }
601#else // GTK 1.x
602 // After cursor movements, gtk_text_get_point() is wrong by one.
603 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
604
605 // always use m_defaultStyle, even if it is empty as otherwise
606 // resetting the style and appending some more text wouldn't work: if
607 // we don't specify the style explicitly, the old style would be used
608 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
609 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
610
611 // we called wxGtkTextInsert with correct font, no need to do anything
612 // in UpdateFontIfNeeded() any longer
613 if ( !text.empty() )
614 {
615 m_updateFont = FALSE;
616 }
617
618 // Bring editable's cursor back uptodate.
619 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
620#endif // GTK 1.x/2.0
621 }
622 else // single line
623 {
624 // First remove the selection if there is one
625 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
626
627 // This moves the cursor pos to behind the inserted text.
628 gint len = GET_EDITABLE_POS(m_text);
629
630#ifdef __WXGTK20__
631
632#if wxUSE_UNICODE
633 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
634#else
635 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
636#endif
637 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
638
639#else
640 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
641#endif
642
643 // Bring entry's cursor uptodate.
644 gtk_entry_set_position( GTK_ENTRY(m_text), len );
645 }
646
647 m_modified = TRUE;
648}
649
650void wxTextCtrl::AppendText( const wxString &text )
651{
652 SetInsertionPointEnd();
653 WriteText( text );
654}
655
656wxString wxTextCtrl::GetLineText( long lineNo ) const
657{
658 if (m_windowStyle & wxTE_MULTILINE)
659 {
660#ifndef __WXGTK20__
661 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
662 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
663
664 if (text)
665 {
666 wxString buf(wxT(""));
667 long i;
668 int currentLine = 0;
669 for (i = 0; currentLine != lineNo && text[i]; i++ )
670 if (text[i] == '\n')
671 currentLine++;
672 // Now get the text
673 int j;
674 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
675 buf += text[i];
676
677 g_free( text );
678 return buf;
679 }
680 else
681 {
682 return wxEmptyString;
683 }
684#else
685 GtkTextBuffer *text_buffer;
686 text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
687 GtkTextIter line;
688 gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
689 GtkTextIter end;
690 gtk_text_buffer_get_end_iter(text_buffer,&end );
691 gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
692 wxString result(wxGTK_CONV_BACK(text));
693 g_free(text);
694 return result.BeforeFirst(wxT('\n'));
695#endif
696 }
697 else
698 {
699 if (lineNo == 0) return GetValue();
700 return wxEmptyString;
701 }
702}
703
704void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
705{
706 /* If you implement this, don't forget to update the documentation!
707 * (file docs/latex/wx/text.tex) */
708 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
709}
710
711bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
712{
713 if ( m_windowStyle & wxTE_MULTILINE )
714 {
715 wxString text = GetValue();
716
717 // cast to prevent warning. But pos really should've been unsigned.
718 if( (unsigned long)pos > text.Len() )
719 return FALSE;
720
721 *x=0; // First Col
722 *y=0; // First Line
723
724 const wxChar* stop = text.c_str() + pos;
725 for ( const wxChar *p = text.c_str(); p < stop; p++ )
726 {
727 if (*p == wxT('\n'))
728 {
729 (*y)++;
730 *x=0;
731 }
732 else
733 (*x)++;
734 }
735 }
736 else // single line control
737 {
738 if ( pos <= GTK_ENTRY(m_text)->text_length )
739 {
740 *y = 0;
741 *x = pos;
742 }
743 else
744 {
745 // index out of bounds
746 return FALSE;
747 }
748 }
749
750 return TRUE;
751}
752
753long wxTextCtrl::XYToPosition(long x, long y ) const
754{
755 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
756
757 long pos=0;
758 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
759
760 pos += x;
761 return pos;
762}
763
764int wxTextCtrl::GetLineLength(long lineNo) const
765{
766 wxString str = GetLineText (lineNo);
767 return (int) str.Length();
768}
769
770int wxTextCtrl::GetNumberOfLines() const
771{
772 if (m_windowStyle & wxTE_MULTILINE)
773 {
774#ifdef __WXGTK20__
775 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
776
777 return gtk_text_buffer_get_line_count( buffer );
778#else
779 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
780 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
781
782 if (text)
783 {
784 int currentLine = 0;
785 for (int i = 0; i < len; i++ )
786 {
787 if (text[i] == '\n')
788 currentLine++;
789 }
790 g_free( text );
791
792 // currentLine is 0 based, add 1 to get number of lines
793 return currentLine + 1;
794 }
795 else
796 {
797 return 0;
798 }
799#endif
800 }
801 else
802 {
803 return 1;
804 }
805}
806
807void wxTextCtrl::SetInsertionPoint( long pos )
808{
809 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
810
811 if (m_windowStyle & wxTE_MULTILINE)
812 {
813#ifdef __WXGTK20__
814 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
815 GtkTextIter iter;
816 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
817 gtk_text_buffer_place_cursor( text_buffer, &iter );
818#else
819 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
820 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
821
822 /* we fake a set_point by inserting and deleting. as the user
823 isn't supposed to get to know about this non-sense, we
824 disconnect so that no events are sent to the user program. */
825
826 gint tmp = (gint)pos;
827 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
828 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
829
830 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
831 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
832
833 // bring editable's cursor uptodate. Bug in GTK.
834 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
835#endif
836 }
837 else
838 {
839 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
840
841 // Bring editable's cursor uptodate. Bug in GTK.
842 SET_EDITABLE_POS(m_text, (guint32)pos);
843 }
844}
845
846void wxTextCtrl::SetInsertionPointEnd()
847{
848 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
849
850 if (m_windowStyle & wxTE_MULTILINE)
851 {
852#ifdef __WXGTK20__
853 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
854 GtkTextIter end;
855 gtk_text_buffer_get_end_iter( text_buffer, &end );
856 gtk_text_buffer_place_cursor( text_buffer, &end );
857#else
858 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
859#endif
860 }
861 else
862 {
863 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
864 }
865}
866
867void wxTextCtrl::SetEditable( bool editable )
868{
869 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
870
871 if (m_windowStyle & wxTE_MULTILINE)
872 {
873#ifdef __WXGTK20__
874 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
875#else
876 gtk_text_set_editable( GTK_TEXT(m_text), editable );
877#endif
878 }
879 else
880 {
881 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
882 }
883}
884
885bool wxTextCtrl::Enable( bool enable )
886{
887 if (!wxWindowBase::Enable(enable))
888 {
889 // nothing to do
890 return FALSE;
891 }
892
893 if (m_windowStyle & wxTE_MULTILINE)
894 {
895#ifdef __WXGTK20__
896 SetEditable( enable );
897#else
898 gtk_text_set_editable( GTK_TEXT(m_text), enable );
899 OnParentEnable(enable);
900#endif
901 }
902 else
903 {
904 gtk_widget_set_sensitive( m_text, enable );
905 }
906
907 return TRUE;
908}
909
910// wxGTK-specific: called recursively by Enable,
911// to give widgets an oppprtunity to correct their colours after they
912// have been changed by Enable
913void wxTextCtrl::OnParentEnable( bool enable )
914{
915 // If we have a custom background colour, we use this colour in both
916 // disabled and enabled mode, or we end up with a different colour under the
917 // text.
918 wxColour oldColour = GetBackgroundColour();
919 if (oldColour.Ok())
920 {
921 // Need to set twice or it'll optimize the useful stuff out
922 if (oldColour == * wxWHITE)
923 SetBackgroundColour(*wxBLACK);
924 else
925 SetBackgroundColour(*wxWHITE);
926 SetBackgroundColour(oldColour);
927 }
928}
929
930void wxTextCtrl::MarkDirty()
931{
932 m_modified = TRUE;
933}
934
935void wxTextCtrl::DiscardEdits()
936{
937 m_modified = FALSE;
938}
939
940// ----------------------------------------------------------------------------
941// max text length support
942// ----------------------------------------------------------------------------
943
944void wxTextCtrl::IgnoreNextTextUpdate()
945{
946 m_ignoreNextUpdate = TRUE;
947}
948
949bool wxTextCtrl::IgnoreTextUpdate()
950{
951 if ( m_ignoreNextUpdate )
952 {
953 m_ignoreNextUpdate = FALSE;
954
955 return TRUE;
956 }
957
958 return FALSE;
959}
960
961void wxTextCtrl::SetMaxLength(unsigned long len)
962{
963 if ( !HasFlag(wxTE_MULTILINE) )
964 {
965 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
966
967 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
968 // we had tried to enter more text than allowed by max text length and
969 // the text wasn't really changed
970 //
971 // to detect this and generate TEXT_MAXLEN event instead of
972 // TEXT_CHANGED one in this case we also catch "insert_text" signal
973 //
974 // when max len is set to 0 we disconnect our handler as it means that
975 // we shouldn't check anything any more
976 if ( len )
977 {
978 gtk_signal_connect( GTK_OBJECT(m_text),
979 "insert_text",
980 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
981 (gpointer)this);
982 }
983 else // no checking
984 {
985 gtk_signal_disconnect_by_func
986 (
987 GTK_OBJECT(m_text),
988 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
989 (gpointer)this
990 );
991 }
992 }
993}
994
995void wxTextCtrl::SetSelection( long from, long to )
996{
997 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
998
999 if (from == -1 && to == -1)
1000 {
1001 from = 0;
1002 to = GetValue().Length();
1003 }
1004
1005#ifndef __WXGTK20__
1006 if ( (m_windowStyle & wxTE_MULTILINE) &&
1007 !GTK_TEXT(m_text)->line_start_cache )
1008 {
1009 // tell the programmer that it didn't work
1010 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1011 return;
1012 }
1013#endif
1014
1015 if (m_windowStyle & wxTE_MULTILINE)
1016 {
1017#ifdef __WXGTK20__
1018 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1019
1020 GtkTextIter fromi, toi;
1021 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1022 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1023
1024 gtk_text_buffer_place_cursor( buf, &toi );
1025 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1026#else
1027 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1028#endif
1029 }
1030 else
1031 {
1032 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1033 }
1034}
1035
1036void wxTextCtrl::ShowPosition( long pos )
1037{
1038 if (m_windowStyle & wxTE_MULTILINE)
1039 {
1040#ifdef __WXGTK20__
1041 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1042 GtkTextIter iter;
1043 gtk_text_buffer_get_start_iter( buf, &iter );
1044 gtk_text_iter_set_offset( &iter, pos );
1045 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1046 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1047#else // GTK 1.x
1048 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1049 float totalLines = (float) GetNumberOfLines();
1050 long posX;
1051 long posY;
1052 PositionToXY(pos, &posX, &posY);
1053 float posLine = (float) posY;
1054 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1055 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1056#endif // GTK 1.x/2.x
1057 }
1058}
1059
1060long wxTextCtrl::GetInsertionPoint() const
1061{
1062 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1063
1064#ifdef __WXGTK20__
1065 if (m_windowStyle & wxTE_MULTILINE)
1066 {
1067 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1068
1069 // There is no direct accessor for the cursor, but
1070 // internally, the cursor is the "mark" called
1071 // "insert" in the text view's btree structure.
1072
1073 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1074 GtkTextIter cursor;
1075 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1076
1077 return gtk_text_iter_get_offset( &cursor );
1078 }
1079 else
1080#endif
1081 {
1082 return (long) GET_EDITABLE_POS(m_text);
1083 }
1084}
1085
1086long wxTextCtrl::GetLastPosition() const
1087{
1088 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1089
1090 int pos = 0;
1091
1092 if (m_windowStyle & wxTE_MULTILINE)
1093 {
1094#ifdef __WXGTK20__
1095 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1096 GtkTextIter end;
1097 gtk_text_buffer_get_end_iter( text_buffer, &end );
1098
1099 pos = gtk_text_iter_get_offset( &end );
1100#else
1101 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1102#endif
1103 }
1104 else
1105 {
1106 pos = GTK_ENTRY(m_text)->text_length;
1107 }
1108
1109 return (long)pos;
1110}
1111
1112void wxTextCtrl::Remove( long from, long to )
1113{
1114 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1115
1116#ifdef __WXGTK20__
1117 if (m_windowStyle & wxTE_MULTILINE)
1118 {
1119 GtkTextBuffer *
1120 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1121
1122 GtkTextIter fromi, toi;
1123 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1124 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1125
1126 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1127 }
1128 else // single line
1129#endif
1130 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1131}
1132
1133void wxTextCtrl::Replace( long from, long to, const wxString &value )
1134{
1135 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1136
1137 Remove( from, to );
1138
1139 if (!value.IsEmpty())
1140 {
1141#ifdef __WXGTK20__
1142 SetInsertionPoint( from );
1143 WriteText( value );
1144#else // GTK 1.x
1145 gint pos = (gint)from;
1146#if wxUSE_UNICODE
1147 wxWX2MBbuf buf = value.mbc_str();
1148 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1149#else
1150 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1151#endif // wxUSE_UNICODE
1152#endif // GTK 1.x/2.x
1153 }
1154}
1155
1156void wxTextCtrl::Cut()
1157{
1158 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1159
1160#ifdef __WXGTK20__
1161 if (m_windowStyle & wxTE_MULTILINE)
1162 g_signal_emit_by_name(m_text, "cut-clipboard");
1163 else
1164#endif
1165 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1166}
1167
1168void wxTextCtrl::Copy()
1169{
1170 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1171
1172#ifdef __WXGTK20__
1173 if (m_windowStyle & wxTE_MULTILINE)
1174 g_signal_emit_by_name(m_text, "copy-clipboard");
1175 else
1176#endif
1177 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1178}
1179
1180void wxTextCtrl::Paste()
1181{
1182 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1183
1184#ifdef __WXGTK20__
1185 if (m_windowStyle & wxTE_MULTILINE)
1186 g_signal_emit_by_name(m_text, "paste-clipboard");
1187 else
1188#endif
1189 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1190}
1191
1192// Undo/redo
1193void wxTextCtrl::Undo()
1194{
1195 // TODO
1196 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1197}
1198
1199void wxTextCtrl::Redo()
1200{
1201 // TODO
1202 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1203}
1204
1205bool wxTextCtrl::CanUndo() const
1206{
1207 // TODO
1208 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1209 return FALSE;
1210}
1211
1212bool wxTextCtrl::CanRedo() const
1213{
1214 // TODO
1215 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1216 return FALSE;
1217}
1218
1219// If the return values from and to are the same, there is no
1220// selection.
1221void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1222{
1223 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1224
1225 gint from = -1;
1226 gint to = -1;
1227 bool haveSelection = FALSE;
1228
1229#ifdef __WXGTK20__
1230 if (m_windowStyle & wxTE_MULTILINE)
1231 {
1232 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1233 GtkTextIter ifrom, ito;
1234 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1235 {
1236 haveSelection = TRUE;
1237 from = gtk_text_iter_get_offset(&ifrom);
1238 to = gtk_text_iter_get_offset(&ito);
1239 }
1240 }
1241 else // not multi-line
1242 {
1243 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1244 &from, &to) )
1245 {
1246 haveSelection = TRUE;
1247 }
1248 }
1249#else // not GTK2
1250 if ( (GTK_EDITABLE(m_text)->has_selection) )
1251 {
1252 haveSelection = TRUE;
1253 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1254 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1255 }
1256#endif
1257
1258 if (! haveSelection )
1259 from = to = GetInsertionPoint();
1260
1261 if ( from > to )
1262 {
1263 // exchange them to be compatible with wxMSW
1264 gint tmp = from;
1265 from = to;
1266 to = tmp;
1267 }
1268
1269 if ( fromOut )
1270 *fromOut = from;
1271 if ( toOut )
1272 *toOut = to;
1273}
1274
1275
1276bool wxTextCtrl::IsEditable() const
1277{
1278 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1279
1280#ifdef __WXGTK20__
1281 if (m_windowStyle & wxTE_MULTILINE)
1282 {
1283 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1284 }
1285 else
1286 {
1287 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1288 }
1289#else
1290 return GTK_EDITABLE(m_text)->editable;
1291#endif
1292}
1293
1294bool wxTextCtrl::IsModified() const
1295{
1296 return m_modified;
1297}
1298
1299void wxTextCtrl::Clear()
1300{
1301 SetValue( wxT("") );
1302}
1303
1304void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1305{
1306 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1307
1308 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1309 {
1310 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1311 event.SetEventObject(this);
1312 event.SetString(GetValue());
1313 if (GetEventHandler()->ProcessEvent(event)) return;
1314 }
1315
1316 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1317 {
1318 // This will invoke the dialog default action, such
1319 // as the clicking the default button.
1320
1321 wxWindow *top_frame = m_parent;
1322 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1323 top_frame = top_frame->GetParent();
1324
1325 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1326 {
1327 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1328
1329 if (window->default_widget)
1330 {
1331 gtk_widget_activate (window->default_widget);
1332 return;
1333 }
1334 }
1335 }
1336
1337 key_event.Skip();
1338}
1339
1340GtkWidget* wxTextCtrl::GetConnectWidget()
1341{
1342 return GTK_WIDGET(m_text);
1343}
1344
1345bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1346{
1347 if (m_windowStyle & wxTE_MULTILINE)
1348 {
1349#ifdef __WXGTK20__
1350 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1351#else
1352 return (window == GTK_TEXT(m_text)->text_area);
1353#endif
1354 }
1355 else
1356 {
1357 return (window == GTK_ENTRY(m_text)->text_area);
1358 }
1359}
1360
1361// the font will change for subsequent text insertiongs
1362bool wxTextCtrl::SetFont( const wxFont &font )
1363{
1364 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1365
1366 if ( !wxTextCtrlBase::SetFont(font) )
1367 {
1368 // font didn't change, nothing to do
1369 return FALSE;
1370 }
1371
1372 if ( m_windowStyle & wxTE_MULTILINE )
1373 {
1374 m_updateFont = TRUE;
1375
1376 m_defaultStyle.SetFont(font);
1377
1378 ChangeFontGlobally();
1379 }
1380
1381 return TRUE;
1382}
1383
1384void wxTextCtrl::ChangeFontGlobally()
1385{
1386 // this method is very inefficient and hence should be called as rarely as
1387 // possible!
1388 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1389 _T("shouldn't be called for single line controls") );
1390
1391 wxString value = GetValue();
1392 if ( !value.IsEmpty() )
1393 {
1394 m_updateFont = FALSE;
1395
1396 Clear();
1397 AppendText(value);
1398 }
1399}
1400
1401void wxTextCtrl::UpdateFontIfNeeded()
1402{
1403 if ( m_updateFont )
1404 ChangeFontGlobally();
1405}
1406
1407bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1408{
1409 if ( !wxControl::SetForegroundColour(colour) )
1410 return FALSE;
1411
1412 // update default fg colour too
1413 m_defaultStyle.SetTextColour(colour);
1414
1415 return TRUE;
1416}
1417
1418bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1419{
1420 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1421
1422 if ( !wxControl::SetBackgroundColour( colour ) )
1423 return FALSE;
1424
1425 if (!m_widget->window)
1426 return FALSE;
1427
1428 if (!m_backgroundColour.Ok())
1429 return FALSE;
1430
1431 if (m_windowStyle & wxTE_MULTILINE)
1432 {
1433#ifndef __WXGTK20__
1434 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1435 if (!window)
1436 return FALSE;
1437 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1438 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1439 gdk_window_clear( window );
1440#endif
1441 }
1442
1443 // change active background color too
1444 m_defaultStyle.SetBackgroundColour( colour );
1445
1446 return TRUE;
1447}
1448
1449bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1450{
1451 if ( m_windowStyle & wxTE_MULTILINE )
1452 {
1453 if ( style.IsDefault() )
1454 {
1455 // nothing to do
1456 return TRUE;
1457 }
1458#ifdef __WXGTK20__
1459 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1460 gint l = gtk_text_buffer_get_char_count( text_buffer );
1461
1462 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1463 _T("invalid range in wxTextCtrl::SetStyle") );
1464
1465 GtkTextIter starti, endi;
1466 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1467 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1468
1469 // use the attributes from style which are set in it and fall back
1470 // first to the default style and then to the text control default
1471 // colours for the others
1472 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1473
1474 PangoFontDescription *font_description = attr.HasFont()
1475 ? attr.GetFont().GetNativeFontInfo()->description
1476 : NULL;
1477
1478 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1479 : NULL;
1480
1481 GdkColor *colBg = attr.HasBackgroundColour()
1482 ? attr.GetBackgroundColour().GetColor()
1483 : NULL;
1484
1485 GtkTextTag *tag;
1486 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1487 "foreground-gdk", colFg,
1488 "background-gdk", colBg, NULL );
1489 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1490
1491 return TRUE;
1492#else
1493 // VERY dirty way to do that - removes the required text and re-adds it
1494 // with styling (FIXME)
1495
1496 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1497
1498 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1499 _T("invalid range in wxTextCtrl::SetStyle") );
1500
1501 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1502 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1503 wxString tmp(text,*wxConvCurrent);
1504 g_free( text );
1505
1506 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1507 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1508
1509#if wxUSE_UNICODE
1510 wxWX2MBbuf buf = tmp.mbc_str();
1511 const char *txt = buf;
1512 size_t txtlen = strlen(buf);
1513#else
1514 const char *txt = tmp;
1515 size_t txtlen = tmp.length();
1516#endif
1517
1518 // use the attributes from style which are set in it and fall back
1519 // first to the default style and then to the text control default
1520 // colours for the others
1521 wxGtkTextInsert(m_text,
1522 wxTextAttr::Combine(style, m_defaultStyle, this),
1523 txt,
1524 txtlen);
1525
1526 /* does not seem to help under GTK+ 1.2 !!!
1527 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1528 SetInsertionPoint( old_pos );
1529#endif
1530 return TRUE;
1531 }
1532 else // singe line
1533 {
1534 // cannot do this for GTK+'s Entry widget
1535 return FALSE;
1536 }
1537}
1538
1539void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1540{
1541 gtk_widget_modify_style(m_text, style);
1542}
1543
1544void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1545{
1546 Cut();
1547}
1548
1549void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1550{
1551 Copy();
1552}
1553
1554void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1555{
1556 Paste();
1557}
1558
1559void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1560{
1561 Undo();
1562}
1563
1564void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1565{
1566 Redo();
1567}
1568
1569void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1570{
1571 event.Enable( CanCut() );
1572}
1573
1574void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1575{
1576 event.Enable( CanCopy() );
1577}
1578
1579void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1580{
1581 event.Enable( CanPaste() );
1582}
1583
1584void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1585{
1586 event.Enable( CanUndo() );
1587}
1588
1589void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1590{
1591 event.Enable( CanRedo() );
1592}
1593
1594void wxTextCtrl::OnInternalIdle()
1595{
1596 wxCursor cursor = m_cursor;
1597 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1598
1599 if (cursor.Ok())
1600 {
1601#ifndef __WXGTK20__
1602 GdkWindow *window = (GdkWindow*) NULL;
1603 if (HasFlag(wxTE_MULTILINE))
1604 window = GTK_TEXT(m_text)->text_area;
1605 else
1606 window = GTK_ENTRY(m_text)->text_area;
1607
1608 if (window)
1609 gdk_window_set_cursor( window, cursor.GetCursor() );
1610
1611 if (!g_globalCursor.Ok())
1612 cursor = *wxSTANDARD_CURSOR;
1613
1614 window = m_widget->window;
1615 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1616 gdk_window_set_cursor( window, cursor.GetCursor() );
1617#endif
1618 }
1619
1620 if (g_delayedFocus == this)
1621 {
1622 if (GTK_WIDGET_REALIZED(m_widget))
1623 {
1624 gtk_widget_grab_focus( m_widget );
1625 g_delayedFocus = NULL;
1626 }
1627 }
1628
1629 if (wxUpdateUIEvent::CanUpdate(this))
1630 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1631}
1632
1633wxSize wxTextCtrl::DoGetBestSize() const
1634{
1635 // FIXME should be different for multi-line controls...
1636 wxSize ret( wxControl::DoGetBestSize() );
1637 wxSize best(80, ret.y);
1638 CacheBestSize(best);
1639 return best;
1640}
1641
1642// ----------------------------------------------------------------------------
1643// freeze/thaw
1644// ----------------------------------------------------------------------------
1645
1646void wxTextCtrl::Freeze()
1647{
1648#ifndef __WXGTK20__
1649 if ( HasFlag(wxTE_MULTILINE) )
1650 {
1651 gtk_text_freeze(GTK_TEXT(m_text));
1652 }
1653#endif
1654}
1655
1656void wxTextCtrl::Thaw()
1657{
1658#ifndef __WXGTK20__
1659 if ( HasFlag(wxTE_MULTILINE) )
1660 {
1661 GTK_TEXT(m_text)->vadj->value = 0.0;
1662
1663 gtk_text_thaw(GTK_TEXT(m_text));
1664 }
1665#endif
1666}
1667
1668// ----------------------------------------------------------------------------
1669// scrolling
1670// ----------------------------------------------------------------------------
1671
1672GtkAdjustment *wxTextCtrl::GetVAdj() const
1673{
1674#ifdef __WXGTK20__
1675 return NULL;
1676#else
1677 return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
1678#endif
1679}
1680
1681bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1682{
1683#ifndef __WXGTK20__
1684 float value = adj->value + diff;
1685
1686 if ( value < 0 )
1687 value = 0;
1688
1689 float upper = adj->upper - adj->page_size;
1690 if ( value > upper )
1691 value = upper;
1692
1693 // did we noticeably change the scroll position?
1694 if ( fabs(adj->value - value) < 0.2 )
1695 {
1696 // well, this is what Robert does in wxScrollBar, so it must be good...
1697 return FALSE;
1698 }
1699
1700 adj->value = value;
1701
1702 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1703
1704#endif
1705 return TRUE;
1706}
1707
1708bool wxTextCtrl::ScrollLines(int lines)
1709{
1710#ifdef __WXGTK20__
1711 return FALSE;
1712#else
1713 GtkAdjustment *adj = GetVAdj();
1714 if ( !adj )
1715 return FALSE;
1716
1717 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1718 static const int KEY_SCROLL_PIXELS = 10;
1719
1720 return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
1721#endif
1722}
1723
1724bool wxTextCtrl::ScrollPages(int pages)
1725{
1726#ifdef __WXGTK20__
1727 return FALSE;
1728#else
1729 GtkAdjustment *adj = GetVAdj();
1730 if ( !adj )
1731 return FALSE;
1732
1733 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1734#endif
1735}
1736
1737
1738// static
1739wxVisualAttributes
1740wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1741{
1742 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1743}
wxWidgets (Impactor)