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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 if ( buffer )
522 tmp = buffer;
523
524 g_free( text );
525#else
526 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
527 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
528 tmp = text;
529 g_free( text );
530#endif
531 }
532 else
533 {
534 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
535 }
536
537 return tmp;
538}
539
540void wxTextCtrl::SetValue( const wxString &value )
541{
542 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
543
544 if (m_windowStyle & wxTE_MULTILINE)
545 {
546#ifdef __WXGTK20__
547
548#if wxUSE_UNICODE
549 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
550#else
551 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
552#endif
553 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
554 gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
555
556#else
557 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
558 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
559 len = 0;
560 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
561#endif
562 }
563 else
564 {
565 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
566 }
567
568 // GRG, Jun/2000: Changed this after a lot of discussion in
569 // the lists. wxWidgets 2.2 will have a set of flags to
570 // customize this behaviour.
571 SetInsertionPoint(0);
572
573 m_modified = FALSE;
574}
575
576void wxTextCtrl::WriteText( const wxString &text )
577{
578 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
579
580 if ( text.empty() )
581 return;
582
583 // gtk_text_changed_callback() will set m_modified to true but m_modified
584 // shouldn't be changed by the program writing to the text control itself,
585 // so save the old value and restore when we're done
586 bool oldModified = m_modified;
587
588 if ( m_windowStyle & wxTE_MULTILINE )
589 {
590#ifdef __WXGTK20__
591
592#if wxUSE_UNICODE
593 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
594#else
595 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
596#endif
597 if ( !buffer )
598 {
599 // what else can we do? at least don't crash...
600 return;
601 }
602
603 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
604
605 // TODO: Call whatever is needed to delete the selection.
606 wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
607
608 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
609 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
610 if ( adj->value == adj->upper - adj->page_size )
611 {
612 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
613 gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
614 }
615#else // GTK 1.x
616 // After cursor movements, gtk_text_get_point() is wrong by one.
617 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
618
619 // always use m_defaultStyle, even if it is empty as otherwise
620 // resetting the style and appending some more text wouldn't work: if
621 // we don't specify the style explicitly, the old style would be used
622 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
623 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
624
625 // we called wxGtkTextInsert with correct font, no need to do anything
626 // in UpdateFontIfNeeded() any longer
627 if ( !text.empty() )
628 {
629 SetUpdateFont(FALSE);
630 }
631
632 // Bring editable's cursor back uptodate.
633 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
634#endif // GTK 1.x/2.0
635 }
636 else // single line
637 {
638 // First remove the selection if there is one
639 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
640
641 // This moves the cursor pos to behind the inserted text.
642 gint len = GET_EDITABLE_POS(m_text);
643
644#ifdef __WXGTK20__
645
646#if wxUSE_UNICODE
647 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
648#else
649 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
650#endif
651 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
652
653#else
654 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
655#endif
656
657 // Bring entry's cursor uptodate.
658 gtk_entry_set_position( GTK_ENTRY(m_text), len );
659 }
660
661 m_modified = oldModified;
662}
663
664void wxTextCtrl::AppendText( const wxString &text )
665{
666 SetInsertionPointEnd();
667 WriteText( text );
668}
669
670wxString wxTextCtrl::GetLineText( long lineNo ) const
671{
672 if (m_windowStyle & wxTE_MULTILINE)
673 {
674#ifndef __WXGTK20__
675 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
676 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
677
678 if (text)
679 {
680 wxString buf(wxT(""));
681 long i;
682 int currentLine = 0;
683 for (i = 0; currentLine != lineNo && text[i]; i++ )
684 if (text[i] == '\n')
685 currentLine++;
686 // Now get the text
687 int j;
688 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
689 buf += text[i];
690
691 g_free( text );
692 return buf;
693 }
694 else
695 {
696 return wxEmptyString;
697 }
698#else
699 GtkTextBuffer *text_buffer;
700 text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
701 GtkTextIter line;
702 gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
703 GtkTextIter end;
704 gtk_text_buffer_get_end_iter(text_buffer,&end );
705 gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
706 wxString result(wxGTK_CONV_BACK(text));
707 g_free(text);
708 return result.BeforeFirst(wxT('\n'));
709#endif
710 }
711 else
712 {
713 if (lineNo == 0) return GetValue();
714 return wxEmptyString;
715 }
716}
717
718void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
719{
720 /* If you implement this, don't forget to update the documentation!
721 * (file docs/latex/wx/text.tex) */
722 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
723}
724
725bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
726{
727 if ( m_windowStyle & wxTE_MULTILINE )
728 {
729 wxString text = GetValue();
730
731 // cast to prevent warning. But pos really should've been unsigned.
732 if( (unsigned long)pos > text.Len() )
733 return FALSE;
734
735 *x=0; // First Col
736 *y=0; // First Line
737
738 const wxChar* stop = text.c_str() + pos;
739 for ( const wxChar *p = text.c_str(); p < stop; p++ )
740 {
741 if (*p == wxT('\n'))
742 {
743 (*y)++;
744 *x=0;
745 }
746 else
747 (*x)++;
748 }
749 }
750 else // single line control
751 {
752 if ( pos <= GTK_ENTRY(m_text)->text_length )
753 {
754 *y = 0;
755 *x = pos;
756 }
757 else
758 {
759 // index out of bounds
760 return FALSE;
761 }
762 }
763
764 return TRUE;
765}
766
767long wxTextCtrl::XYToPosition(long x, long y ) const
768{
769 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
770
771 long pos=0;
772 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
773
774 pos += x;
775 return pos;
776}
777
778int wxTextCtrl::GetLineLength(long lineNo) const
779{
780 wxString str = GetLineText (lineNo);
781 return (int) str.Length();
782}
783
784int wxTextCtrl::GetNumberOfLines() const
785{
786 if (m_windowStyle & wxTE_MULTILINE)
787 {
788#ifdef __WXGTK20__
789 GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
790
791 return gtk_text_buffer_get_line_count( buffer );
792#else
793 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
794 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
795
796 if (text)
797 {
798 int currentLine = 0;
799 for (int i = 0; i < len; i++ )
800 {
801 if (text[i] == '\n')
802 currentLine++;
803 }
804 g_free( text );
805
806 // currentLine is 0 based, add 1 to get number of lines
807 return currentLine + 1;
808 }
809 else
810 {
811 return 0;
812 }
813#endif
814 }
815 else
816 {
817 return 1;
818 }
819}
820
821void wxTextCtrl::SetInsertionPoint( long pos )
822{
823 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
824
825 if ( IsMultiLine() )
826 {
827#ifdef __WXGTK20__
828 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
829 GtkTextIter iter;
830 gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
831 gtk_text_buffer_place_cursor( text_buffer, &iter );
832 gtk_text_view_scroll_mark_onscreen
833 (
834 GTK_TEXT_VIEW(m_text),
835 gtk_text_buffer_get_insert( text_buffer )
836 );
837#else // GTK+ 1.x
838 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
839 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
840
841 /* we fake a set_point by inserting and deleting. as the user
842 isn't supposed to get to know about this non-sense, we
843 disconnect so that no events are sent to the user program. */
844
845 gint tmp = (gint)pos;
846 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
847 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
848
849 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
850 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
851
852 // bring editable's cursor uptodate. Bug in GTK.
853 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
854#endif // GTK+ 2/1
855 }
856 else
857 {
858 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
859
860 // Bring editable's cursor uptodate. Bug in GTK.
861 SET_EDITABLE_POS(m_text, (guint32)pos);
862 }
863}
864
865void wxTextCtrl::SetInsertionPointEnd()
866{
867 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
868
869 if (m_windowStyle & wxTE_MULTILINE)
870 {
871#ifdef __WXGTK20__
872 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
873 GtkTextIter end;
874 gtk_text_buffer_get_end_iter( text_buffer, &end );
875 gtk_text_buffer_place_cursor( text_buffer, &end );
876#else
877 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
878#endif
879 }
880 else
881 {
882 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
883 }
884}
885
886void wxTextCtrl::SetEditable( bool editable )
887{
888 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
889
890 if (m_windowStyle & wxTE_MULTILINE)
891 {
892#ifdef __WXGTK20__
893 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
894#else
895 gtk_text_set_editable( GTK_TEXT(m_text), editable );
896#endif
897 }
898 else
899 {
900 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
901 }
902}
903
904bool wxTextCtrl::Enable( bool enable )
905{
906 if (!wxWindowBase::Enable(enable))
907 {
908 // nothing to do
909 return FALSE;
910 }
911
912 if (m_windowStyle & wxTE_MULTILINE)
913 {
914#ifdef __WXGTK20__
915 SetEditable( enable );
916#else
917 gtk_text_set_editable( GTK_TEXT(m_text), enable );
918 OnParentEnable(enable);
919#endif
920 }
921 else
922 {
923 gtk_widget_set_sensitive( m_text, enable );
924 }
925
926 return TRUE;
927}
928
929// wxGTK-specific: called recursively by Enable,
930// to give widgets an oppprtunity to correct their colours after they
931// have been changed by Enable
932void wxTextCtrl::OnParentEnable( bool enable )
933{
934 // If we have a custom background colour, we use this colour in both
935 // disabled and enabled mode, or we end up with a different colour under the
936 // text.
937 wxColour oldColour = GetBackgroundColour();
938 if (oldColour.Ok())
939 {
940 // Need to set twice or it'll optimize the useful stuff out
941 if (oldColour == * wxWHITE)
942 SetBackgroundColour(*wxBLACK);
943 else
944 SetBackgroundColour(*wxWHITE);
945 SetBackgroundColour(oldColour);
946 }
947}
948
949void wxTextCtrl::MarkDirty()
950{
951 m_modified = TRUE;
952}
953
954void wxTextCtrl::DiscardEdits()
955{
956 m_modified = FALSE;
957}
958
959// ----------------------------------------------------------------------------
960// max text length support
961// ----------------------------------------------------------------------------
962
963void wxTextCtrl::IgnoreNextTextUpdate()
964{
965 m_ignoreNextUpdate = TRUE;
966}
967
968bool wxTextCtrl::IgnoreTextUpdate()
969{
970 if ( m_ignoreNextUpdate )
971 {
972 m_ignoreNextUpdate = FALSE;
973
974 return TRUE;
975 }
976
977 return FALSE;
978}
979
980void wxTextCtrl::SetMaxLength(unsigned long len)
981{
982 if ( !HasFlag(wxTE_MULTILINE) )
983 {
984 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
985
986 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
987 // we had tried to enter more text than allowed by max text length and
988 // the text wasn't really changed
989 //
990 // to detect this and generate TEXT_MAXLEN event instead of
991 // TEXT_CHANGED one in this case we also catch "insert_text" signal
992 //
993 // when max len is set to 0 we disconnect our handler as it means that
994 // we shouldn't check anything any more
995 if ( len )
996 {
997 gtk_signal_connect( GTK_OBJECT(m_text),
998 "insert_text",
999 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1000 (gpointer)this);
1001 }
1002 else // no checking
1003 {
1004 gtk_signal_disconnect_by_func
1005 (
1006 GTK_OBJECT(m_text),
1007 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1008 (gpointer)this
1009 );
1010 }
1011 }
1012}
1013
1014void wxTextCtrl::SetSelection( long from, long to )
1015{
1016 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1017
1018 if (from == -1 && to == -1)
1019 {
1020 from = 0;
1021 to = GetValue().Length();
1022 }
1023
1024#ifndef __WXGTK20__
1025 if ( (m_windowStyle & wxTE_MULTILINE) &&
1026 !GTK_TEXT(m_text)->line_start_cache )
1027 {
1028 // tell the programmer that it didn't work
1029 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1030 return;
1031 }
1032#endif
1033
1034 if (m_windowStyle & wxTE_MULTILINE)
1035 {
1036#ifdef __WXGTK20__
1037 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1038
1039 GtkTextIter fromi, toi;
1040 gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1041 gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1042
1043 gtk_text_buffer_place_cursor( buf, &toi );
1044 gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1045#else
1046 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1047#endif
1048 }
1049 else
1050 {
1051 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1052 }
1053}
1054
1055void wxTextCtrl::ShowPosition( long pos )
1056{
1057 if (m_windowStyle & wxTE_MULTILINE)
1058 {
1059#ifdef __WXGTK20__
1060 GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1061 GtkTextIter iter;
1062 gtk_text_buffer_get_start_iter( buf, &iter );
1063 gtk_text_iter_set_offset( &iter, pos );
1064 GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1065 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1066#else // GTK 1.x
1067 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1068 float totalLines = (float) GetNumberOfLines();
1069 long posX;
1070 long posY;
1071 PositionToXY(pos, &posX, &posY);
1072 float posLine = (float) posY;
1073 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1074 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1075#endif // GTK 1.x/2.x
1076 }
1077}
1078
1079#ifdef __WXGTK20__
1080
1081wxTextCtrlHitTestResult
1082wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1083{
1084 if ( !IsMultiLine() )
1085 {
1086 // not supported
1087 return wxTE_HT_UNKNOWN;
1088 }
1089
1090 int x, y;
1091 gtk_text_view_window_to_buffer_coords
1092 (
1093 GTK_TEXT_VIEW(m_text),
1094 GTK_TEXT_WINDOW_TEXT,
1095 pt.x, pt.y,
1096 &x, &y
1097 );
1098
1099 GtkTextIter iter;
1100 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1101 if ( pos )
1102 *pos = gtk_text_iter_get_offset(&iter);
1103
1104 return wxTE_HT_ON_TEXT;
1105}
1106
1107#endif // __WXGTK20__
1108
1109long wxTextCtrl::GetInsertionPoint() const
1110{
1111 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1112
1113#ifdef __WXGTK20__
1114 if (m_windowStyle & wxTE_MULTILINE)
1115 {
1116 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1117
1118 // There is no direct accessor for the cursor, but
1119 // internally, the cursor is the "mark" called
1120 // "insert" in the text view's btree structure.
1121
1122 GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1123 GtkTextIter cursor;
1124 gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1125
1126 return gtk_text_iter_get_offset( &cursor );
1127 }
1128 else
1129#endif
1130 {
1131 return (long) GET_EDITABLE_POS(m_text);
1132 }
1133}
1134
1135long wxTextCtrl::GetLastPosition() const
1136{
1137 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1138
1139 int pos = 0;
1140
1141 if (m_windowStyle & wxTE_MULTILINE)
1142 {
1143#ifdef __WXGTK20__
1144 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1145 GtkTextIter end;
1146 gtk_text_buffer_get_end_iter( text_buffer, &end );
1147
1148 pos = gtk_text_iter_get_offset( &end );
1149#else
1150 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1151#endif
1152 }
1153 else
1154 {
1155 pos = GTK_ENTRY(m_text)->text_length;
1156 }
1157
1158 return (long)pos;
1159}
1160
1161void wxTextCtrl::Remove( long from, long to )
1162{
1163 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1164
1165#ifdef __WXGTK20__
1166 if (m_windowStyle & wxTE_MULTILINE)
1167 {
1168 GtkTextBuffer *
1169 text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1170
1171 GtkTextIter fromi, toi;
1172 gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1173 gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1174
1175 gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1176 }
1177 else // single line
1178#endif
1179 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1180}
1181
1182void wxTextCtrl::Replace( long from, long to, const wxString &value )
1183{
1184 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1185
1186 Remove( from, to );
1187
1188 if (!value.IsEmpty())
1189 {
1190#ifdef __WXGTK20__
1191 SetInsertionPoint( from );
1192 WriteText( value );
1193#else // GTK 1.x
1194 gint pos = (gint)from;
1195#if wxUSE_UNICODE
1196 wxWX2MBbuf buf = value.mbc_str();
1197 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1198#else
1199 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1200#endif // wxUSE_UNICODE
1201#endif // GTK 1.x/2.x
1202 }
1203}
1204
1205void wxTextCtrl::Cut()
1206{
1207 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1208
1209#ifdef __WXGTK20__
1210 if (m_windowStyle & wxTE_MULTILINE)
1211 g_signal_emit_by_name(m_text, "cut-clipboard");
1212 else
1213#endif
1214 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1215}
1216
1217void wxTextCtrl::Copy()
1218{
1219 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1220
1221#ifdef __WXGTK20__
1222 if (m_windowStyle & wxTE_MULTILINE)
1223 g_signal_emit_by_name(m_text, "copy-clipboard");
1224 else
1225#endif
1226 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1227}
1228
1229void wxTextCtrl::Paste()
1230{
1231 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1232
1233#ifdef __WXGTK20__
1234 if (m_windowStyle & wxTE_MULTILINE)
1235 g_signal_emit_by_name(m_text, "paste-clipboard");
1236 else
1237#endif
1238 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1239}
1240
1241// Undo/redo
1242void wxTextCtrl::Undo()
1243{
1244 // TODO
1245 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1246}
1247
1248void wxTextCtrl::Redo()
1249{
1250 // TODO
1251 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1252}
1253
1254bool wxTextCtrl::CanUndo() const
1255{
1256 // TODO
1257 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1258 return FALSE;
1259}
1260
1261bool wxTextCtrl::CanRedo() const
1262{
1263 // TODO
1264 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1265 return FALSE;
1266}
1267
1268// If the return values from and to are the same, there is no
1269// selection.
1270void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1271{
1272 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1273
1274 gint from = -1;
1275 gint to = -1;
1276 bool haveSelection = FALSE;
1277
1278#ifdef __WXGTK20__
1279 if (m_windowStyle & wxTE_MULTILINE)
1280 {
1281 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1282 GtkTextIter ifrom, ito;
1283 if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1284 {
1285 haveSelection = TRUE;
1286 from = gtk_text_iter_get_offset(&ifrom);
1287 to = gtk_text_iter_get_offset(&ito);
1288 }
1289 }
1290 else // not multi-line
1291 {
1292 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1293 &from, &to) )
1294 {
1295 haveSelection = TRUE;
1296 }
1297 }
1298#else // not GTK2
1299 if ( (GTK_EDITABLE(m_text)->has_selection) )
1300 {
1301 haveSelection = TRUE;
1302 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1303 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1304 }
1305#endif
1306
1307 if (! haveSelection )
1308 from = to = GetInsertionPoint();
1309
1310 if ( from > to )
1311 {
1312 // exchange them to be compatible with wxMSW
1313 gint tmp = from;
1314 from = to;
1315 to = tmp;
1316 }
1317
1318 if ( fromOut )
1319 *fromOut = from;
1320 if ( toOut )
1321 *toOut = to;
1322}
1323
1324
1325bool wxTextCtrl::IsEditable() const
1326{
1327 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1328
1329#ifdef __WXGTK20__
1330 if (m_windowStyle & wxTE_MULTILINE)
1331 {
1332 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1333 }
1334 else
1335 {
1336 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1337 }
1338#else
1339 return GTK_EDITABLE(m_text)->editable;
1340#endif
1341}
1342
1343bool wxTextCtrl::IsModified() const
1344{
1345 return m_modified;
1346}
1347
1348void wxTextCtrl::Clear()
1349{
1350 SetValue( wxT("") );
1351}
1352
1353void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1354{
1355 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1356
1357 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1358 {
1359 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1360 event.SetEventObject(this);
1361 event.SetString(GetValue());
1362 if (GetEventHandler()->ProcessEvent(event)) return;
1363 }
1364
1365 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1366 {
1367 // This will invoke the dialog default action, such
1368 // as the clicking the default button.
1369
1370 wxWindow *top_frame = m_parent;
1371 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1372 top_frame = top_frame->GetParent();
1373
1374 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1375 {
1376 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1377
1378 if (window->default_widget)
1379 {
1380 gtk_widget_activate (window->default_widget);
1381 return;
1382 }
1383 }
1384 }
1385
1386 key_event.Skip();
1387}
1388
1389GtkWidget* wxTextCtrl::GetConnectWidget()
1390{
1391 return GTK_WIDGET(m_text);
1392}
1393
1394bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1395{
1396 if (m_windowStyle & wxTE_MULTILINE)
1397 {
1398#ifdef __WXGTK20__
1399 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1400#else
1401 return (window == GTK_TEXT(m_text)->text_area);
1402#endif
1403 }
1404 else
1405 {
1406 return (window == GTK_ENTRY(m_text)->text_area);
1407 }
1408}
1409
1410// the font will change for subsequent text insertiongs
1411bool wxTextCtrl::SetFont( const wxFont &font )
1412{
1413 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1414
1415 if ( !wxTextCtrlBase::SetFont(font) )
1416 {
1417 // font didn't change, nothing to do
1418 return FALSE;
1419 }
1420
1421 if ( m_windowStyle & wxTE_MULTILINE )
1422 {
1423 SetUpdateFont(TRUE);
1424
1425 m_defaultStyle.SetFont(font);
1426
1427 ChangeFontGlobally();
1428 }
1429
1430 return TRUE;
1431}
1432
1433void wxTextCtrl::ChangeFontGlobally()
1434{
1435 // this method is very inefficient and hence should be called as rarely as
1436 // possible!
1437 //
1438 // TODO: it can be implemented much more efficiently for GTK2
1439#ifndef __WXGTK20__
1440 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1441
1442 _T("shouldn't be called for single line controls") );
1443#else
1444 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1445 _T("shouldn't be called for single line controls") );
1446#endif
1447
1448 wxString value = GetValue();
1449 if ( !value.IsEmpty() )
1450 {
1451 SetUpdateFont(FALSE);
1452
1453 Clear();
1454 AppendText(value);
1455 }
1456}
1457
1458#ifndef __WXGTK20__
1459
1460void wxTextCtrl::UpdateFontIfNeeded()
1461{
1462 if ( m_updateFont )
1463 ChangeFontGlobally();
1464}
1465
1466#endif // GTK+ 1.x
1467
1468bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1469{
1470 if ( !wxControl::SetForegroundColour(colour) )
1471 return FALSE;
1472
1473 // update default fg colour too
1474 m_defaultStyle.SetTextColour(colour);
1475
1476 return TRUE;
1477}
1478
1479bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1480{
1481 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1482
1483 if ( !wxControl::SetBackgroundColour( colour ) )
1484 return FALSE;
1485
1486#ifndef __WXGTK20__
1487 if (!m_widget->window)
1488 return FALSE;
1489#endif
1490
1491 if (!m_backgroundColour.Ok())
1492 return FALSE;
1493
1494 if (m_windowStyle & wxTE_MULTILINE)
1495 {
1496#ifndef __WXGTK20__
1497 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1498 if (!window)
1499 return FALSE;
1500 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1501 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1502 gdk_window_clear( window );
1503#endif
1504 }
1505
1506 // change active background color too
1507 m_defaultStyle.SetBackgroundColour( colour );
1508
1509 return TRUE;
1510}
1511
1512bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1513{
1514 if ( m_windowStyle & wxTE_MULTILINE )
1515 {
1516 if ( style.IsDefault() )
1517 {
1518 // nothing to do
1519 return TRUE;
1520 }
1521#ifdef __WXGTK20__
1522 GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1523 gint l = gtk_text_buffer_get_char_count( text_buffer );
1524
1525 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1526 _T("invalid range in wxTextCtrl::SetStyle") );
1527
1528 GtkTextIter starti, endi;
1529 gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1530 gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1531
1532 // use the attributes from style which are set in it and fall back
1533 // first to the default style and then to the text control default
1534 // colours for the others
1535 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1536
1537 PangoFontDescription *font_description = attr.HasFont()
1538 ? attr.GetFont().GetNativeFontInfo()->description
1539 : NULL;
1540
1541 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1542 : NULL;
1543
1544 GdkColor *colBg = attr.HasBackgroundColour()
1545 ? attr.GetBackgroundColour().GetColor()
1546 : NULL;
1547
1548 GtkTextTag *tag;
1549 tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1550 "foreground-gdk", colFg,
1551 "background-gdk", colBg, NULL );
1552 gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1553
1554 return TRUE;
1555#else
1556 // VERY dirty way to do that - removes the required text and re-adds it
1557 // with styling (FIXME)
1558
1559 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1560
1561 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1562 _T("invalid range in wxTextCtrl::SetStyle") );
1563
1564 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1565 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1566 wxString tmp(text,*wxConvCurrent);
1567 g_free( text );
1568
1569 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1570 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1571
1572#if wxUSE_UNICODE
1573 wxWX2MBbuf buf = tmp.mbc_str();
1574 const char *txt = buf;
1575 size_t txtlen = strlen(buf);
1576#else
1577 const char *txt = tmp;
1578 size_t txtlen = tmp.length();
1579#endif
1580
1581 // use the attributes from style which are set in it and fall back
1582 // first to the default style and then to the text control default
1583 // colours for the others
1584 wxGtkTextInsert(m_text,
1585 wxTextAttr::Combine(style, m_defaultStyle, this),
1586 txt,
1587 txtlen);
1588
1589 /* does not seem to help under GTK+ 1.2 !!!
1590 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1591 SetInsertionPoint( old_pos );
1592#endif
1593 return TRUE;
1594 }
1595 else // singe line
1596 {
1597 // cannot do this for GTK+'s Entry widget
1598 return FALSE;
1599 }
1600}
1601
1602void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1603{
1604 gtk_widget_modify_style(m_text, style);
1605}
1606
1607void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1608{
1609 Cut();
1610}
1611
1612void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1613{
1614 Copy();
1615}
1616
1617void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1618{
1619 Paste();
1620}
1621
1622void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1623{
1624 Undo();
1625}
1626
1627void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1628{
1629 Redo();
1630}
1631
1632void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1633{
1634 event.Enable( CanCut() );
1635}
1636
1637void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1638{
1639 event.Enable( CanCopy() );
1640}
1641
1642void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1643{
1644 event.Enable( CanPaste() );
1645}
1646
1647void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1648{
1649 event.Enable( CanUndo() );
1650}
1651
1652void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1653{
1654 event.Enable( CanRedo() );
1655}
1656
1657void wxTextCtrl::OnInternalIdle()
1658{
1659 wxCursor cursor = m_cursor;
1660 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1661
1662 if (cursor.Ok())
1663 {
1664#ifndef __WXGTK20__
1665 GdkWindow *window = (GdkWindow*) NULL;
1666 if (HasFlag(wxTE_MULTILINE))
1667 window = GTK_TEXT(m_text)->text_area;
1668 else
1669 window = GTK_ENTRY(m_text)->text_area;
1670
1671 if (window)
1672 gdk_window_set_cursor( window, cursor.GetCursor() );
1673
1674 if (!g_globalCursor.Ok())
1675 cursor = *wxSTANDARD_CURSOR;
1676
1677 window = m_widget->window;
1678 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1679 gdk_window_set_cursor( window, cursor.GetCursor() );
1680#endif
1681 }
1682
1683 if (g_delayedFocus == this)
1684 {
1685 if (GTK_WIDGET_REALIZED(m_widget))
1686 {
1687 gtk_widget_grab_focus( m_widget );
1688 g_delayedFocus = NULL;
1689 }
1690 }
1691
1692 if (wxUpdateUIEvent::CanUpdate(this))
1693 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1694}
1695
1696wxSize wxTextCtrl::DoGetBestSize() const
1697{
1698 // FIXME should be different for multi-line controls...
1699 wxSize ret( wxControl::DoGetBestSize() );
1700 wxSize best(80, ret.y);
1701 CacheBestSize(best);
1702 return best;
1703}
1704
1705// ----------------------------------------------------------------------------
1706// freeze/thaw
1707// ----------------------------------------------------------------------------
1708
1709void wxTextCtrl::Freeze()
1710{
1711#ifndef __WXGTK20__
1712 if ( HasFlag(wxTE_MULTILINE) )
1713 {
1714 gtk_text_freeze(GTK_TEXT(m_text));
1715 }
1716#endif
1717}
1718
1719void wxTextCtrl::Thaw()
1720{
1721#ifndef __WXGTK20__
1722 if ( HasFlag(wxTE_MULTILINE) )
1723 {
1724 GTK_TEXT(m_text)->vadj->value = 0.0;
1725
1726 gtk_text_thaw(GTK_TEXT(m_text));
1727 }
1728#endif
1729}
1730
1731// ----------------------------------------------------------------------------
1732// scrolling
1733// ----------------------------------------------------------------------------
1734
1735GtkAdjustment *wxTextCtrl::GetVAdj() const
1736{
1737 if ( !IsMultiLine() )
1738 return NULL;
1739
1740#ifdef __WXGTK20__
1741 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
1742#else
1743 return GTK_TEXT(m_text)->vadj;
1744#endif
1745}
1746
1747bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1748{
1749 float value = adj->value + diff;
1750
1751 if ( value < 0 )
1752 value = 0;
1753
1754 float upper = adj->upper - adj->page_size;
1755 if ( value > upper )
1756 value = upper;
1757
1758 // did we noticeably change the scroll position?
1759 if ( fabs(adj->value - value) < 0.2 )
1760 {
1761 // well, this is what Robert does in wxScrollBar, so it must be good...
1762 return FALSE;
1763 }
1764
1765 adj->value = value;
1766
1767#ifdef __WXGTK20__
1768 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
1769#else
1770 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1771#endif
1772
1773 return TRUE;
1774}
1775
1776bool wxTextCtrl::ScrollLines(int lines)
1777{
1778 GtkAdjustment *adj = GetVAdj();
1779 if ( !adj )
1780 return FALSE;
1781
1782#ifdef __WXGTK20__
1783 int diff = (int)ceil(lines*adj->step_increment);
1784#else
1785 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1786 int diff = 10*lines;
1787#endif
1788
1789 return DoScroll(adj, diff);
1790}
1791
1792bool wxTextCtrl::ScrollPages(int pages)
1793{
1794 GtkAdjustment *adj = GetVAdj();
1795 if ( !adj )
1796 return FALSE;
1797
1798 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1799}
1800
1801
1802// static
1803wxVisualAttributes
1804wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1805{
1806 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1807}
wxWidgets (Impactor)