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[wxWidgets.git] / src / gtk1 / textctrl.cpp
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 "wx/math.h"
30
31 #include "wx/gtk/private.h"
32 #include <gdk/gdkkeysyms.h>
33
34 //-----------------------------------------------------------------------------
35 // idle system
36 //-----------------------------------------------------------------------------
37
38 extern void wxapp_install_idle_handler();
39 extern bool g_isIdle;
40
41 //-----------------------------------------------------------------------------
42 // data
43 //-----------------------------------------------------------------------------
44
45 extern bool g_blockEventsOnDrag;
46 extern wxCursor g_globalCursor;
47 extern wxWindowGTK *g_delayedFocus;
48
49 // ----------------------------------------------------------------------------
50 // helpers
51 // ----------------------------------------------------------------------------
52
53 #ifdef __WXGTK20__
54 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
55 const wxTextAttr& attr,
56 GtkTextIter *start,
57 GtkTextIter *end)
58 {
59 static gchar buf[1024];
60 GtkTextTag *tag;
61
62 if (attr.HasFont())
63 {
64 char *font_string;
65 PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
66 font_string = pango_font_description_to_string(font_description);
67 g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
68 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
69 buf );
70 if (!tag)
71 tag = gtk_text_buffer_create_tag( text_buffer, buf,
72 "font-desc", font_description,
73 NULL );
74 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
75 g_free (font_string);
76 }
77
78 if (attr.HasTextColour())
79 {
80 GdkColor *colFg = attr.GetTextColour().GetColor();
81 g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
82 colFg->red, colFg->green, colFg->blue);
83 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
84 buf );
85 if (!tag)
86 tag = gtk_text_buffer_create_tag( text_buffer, buf,
87 "foreground-gdk", colFg, NULL );
88 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
89 }
90
91 if (attr.HasBackgroundColour())
92 {
93 GdkColor *colBg = attr.GetBackgroundColour().GetColor();
94 g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
95 colBg->red, colBg->green, colBg->blue);
96 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
97 buf );
98 if (!tag)
99 tag = gtk_text_buffer_create_tag( text_buffer, buf,
100 "background-gdk", colBg, NULL );
101 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
102 }
103 }
104
105 static void wxGtkTextInsert(GtkWidget *text,
106 GtkTextBuffer *text_buffer,
107 const wxTextAttr& attr,
108 wxCharBuffer buffer)
109
110 {
111 gint start_offset;
112 GtkTextIter iter, start;
113
114 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
115 gtk_text_buffer_get_insert (text_buffer) );
116 start_offset = gtk_text_iter_get_offset (&iter);
117 gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
118
119 gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
120
121 wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
122 }
123 #else
124 static void wxGtkTextInsert(GtkWidget *text,
125 const wxTextAttr& attr,
126 const char *txt,
127 size_t len)
128 {
129 GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
130 : NULL;
131
132 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
133 : NULL;
134
135 GdkColor *colBg = attr.HasBackgroundColour()
136 ? attr.GetBackgroundColour().GetColor()
137 : NULL;
138
139 gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
140 }
141 #endif // GTK 1.x
142
143 // ----------------------------------------------------------------------------
144 // "insert_text" for GtkEntry
145 // ----------------------------------------------------------------------------
146
147 static void
148 gtk_insert_text_callback(GtkEditable *editable,
149 const gchar *new_text,
150 gint new_text_length,
151 gint *position,
152 wxTextCtrl *win)
153 {
154 if (g_isIdle)
155 wxapp_install_idle_handler();
156
157 // we should only be called if we have a max len limit at all
158 GtkEntry *entry = GTK_ENTRY (editable);
159
160 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
161
162 // check that we don't overflow the max length limit
163 //
164 // FIXME: this doesn't work when we paste a string which is going to be
165 // truncated
166 if ( entry->text_length == entry->text_max_length )
167 {
168 // we don't need to run the base class version at all
169 gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
170
171 // remember that the next changed signal is to be ignored to avoid
172 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
173 win->IgnoreNextTextUpdate();
174
175 // and generate the correct one ourselves
176 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
177 event.SetEventObject(win);
178 event.SetString(win->GetValue());
179 win->GetEventHandler()->ProcessEvent( event );
180 }
181 }
182
183 //-----------------------------------------------------------------------------
184 // "changed"
185 //-----------------------------------------------------------------------------
186
187 static void
188 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
189 {
190 if ( win->IgnoreTextUpdate() )
191 return;
192
193 if (!win->m_hasVMT) return;
194
195 if (g_isIdle)
196 wxapp_install_idle_handler();
197
198 win->SetModified();
199 #ifndef __WXGTK20__
200 win->UpdateFontIfNeeded();
201 #endif // !__WXGTK20__
202
203 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
204 event.SetEventObject( win );
205 event.SetString( win->GetValue() );
206 win->GetEventHandler()->ProcessEvent( event );
207 }
208
209 //-----------------------------------------------------------------------------
210 // "expose_event" from scrolled window and textview
211 //-----------------------------------------------------------------------------
212
213 #ifdef __WXGTK20__
214 static gboolean
215 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
216 {
217 return TRUE;
218 }
219 #endif
220
221 //-----------------------------------------------------------------------------
222 // "changed" from vertical scrollbar
223 //-----------------------------------------------------------------------------
224
225 #ifndef __WXGTK20__
226 static void
227 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
228 {
229 if (!win->m_hasVMT) return;
230
231 if (g_isIdle)
232 wxapp_install_idle_handler();
233
234 win->CalculateScrollbar();
235 }
236 #endif
237
238 // ----------------------------------------------------------------------------
239 // redraw callback for multiline text
240 // ----------------------------------------------------------------------------
241
242 #ifndef __WXGTK20__
243
244 // redrawing a GtkText from inside a wxYield() call results in crashes (the
245 // text sample shows it in its "Add lines" command which shows wxProgressDialog
246 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
247 // don't do anything if we're inside wxYield()
248
249 extern bool wxIsInsideYield;
250
251 extern "C" {
252 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
253 }
254
255 static GtkDrawCallback gs_gtk_text_draw = NULL;
256
257 extern "C"
258 void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
259 {
260 if ( !wxIsInsideYield )
261 {
262 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
263 _T("infinite recursion in wxgtk_text_draw aborted") );
264
265 gs_gtk_text_draw(widget, rect);
266 }
267 }
268
269 #endif // __WXGTK20__
270
271 //-----------------------------------------------------------------------------
272 // wxTextCtrl
273 //-----------------------------------------------------------------------------
274
275 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
276
277 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
278 EVT_CHAR(wxTextCtrl::OnChar)
279
280 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
281 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
282 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
283 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
284 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
285
286 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
287 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
288 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
289 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
290 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
291 END_EVENT_TABLE()
292
293 void wxTextCtrl::Init()
294 {
295 m_ignoreNextUpdate =
296 m_modified = FALSE;
297 SetUpdateFont(FALSE);
298 m_text =
299 m_vScrollbar = (GtkWidget *)NULL;
300 #ifdef __WXGTK20__
301 m_frozenness = 0;
302 #endif
303 }
304
305 wxTextCtrl::wxTextCtrl( wxWindow *parent,
306 wxWindowID id,
307 const wxString &value,
308 const wxPoint &pos,
309 const wxSize &size,
310 long style,
311 const wxValidator& validator,
312 const wxString &name )
313 {
314 Init();
315
316 Create( parent, id, value, pos, size, style, validator, name );
317 }
318
319 bool wxTextCtrl::Create( wxWindow *parent,
320 wxWindowID id,
321 const wxString &value,
322 const wxPoint &pos,
323 const wxSize &size,
324 long style,
325 const wxValidator& validator,
326 const wxString &name )
327 {
328 m_needParent = TRUE;
329 m_acceptsFocus = TRUE;
330
331 if (!PreCreation( parent, pos, size ) ||
332 !CreateBase( parent, id, pos, size, style, validator, name ))
333 {
334 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
335 return FALSE;
336 }
337
338
339 m_vScrollbarVisible = FALSE;
340
341 bool multi_line = (style & wxTE_MULTILINE) != 0;
342
343 if (multi_line)
344 {
345 #ifdef __WXGTK20__
346 // Create view
347 m_text = gtk_text_view_new();
348
349 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
350
351 // create scrolled window
352 m_widget = gtk_scrolled_window_new( NULL, NULL );
353 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
354 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
355
356 // Insert view into scrolled window
357 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
358
359 // Global settings which can be overridden by tags, I guess.
360 if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
361 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
362 else
363 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
364
365 if (!HasFlag(wxNO_BORDER))
366 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
367
368 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
369 #else
370 // create our control ...
371 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
372
373 // ... and put into the upper left hand corner of the table
374 bool bHasHScrollbar = FALSE;
375 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
376 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
377 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
378 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
379 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
380 0, 0);
381
382 // always wrap words
383 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
384
385 // finally, put the vertical scrollbar in the upper right corner
386 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
387 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
388 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
389 GTK_FILL,
390 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
391 0, 0);
392 #endif
393 }
394 else
395 {
396 // a single-line text control: no need for scrollbars
397 m_widget =
398 m_text = gtk_entry_new();
399
400 #ifdef __WXGTK20__
401 if (style & wxNO_BORDER)
402 g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
403 #endif
404 }
405
406 m_parent->DoAddChild( this );
407
408 m_focusWidget = m_text;
409
410 PostCreation(size);
411
412 if (multi_line)
413 gtk_widget_show(m_text);
414
415 #ifndef __WXGTK20__
416 if (multi_line)
417 {
418 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
419 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
420
421 // only initialize gs_gtk_text_draw once, starting from the next the
422 // klass::draw will already be wxgtk_text_draw
423 if ( !gs_gtk_text_draw )
424 {
425 GtkDrawCallback&
426 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
427
428 gs_gtk_text_draw = draw;
429
430 draw = wxgtk_text_draw;
431 }
432 }
433 #endif // GTK+ 1.x
434
435 if (!value.IsEmpty())
436 {
437 #ifdef __WXGTK20__
438 SetValue( value );
439 #else
440
441 #if !GTK_CHECK_VERSION(1, 2, 0)
442 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
443 // gtk_editable_insert_text()
444 gtk_widget_realize(m_text);
445 #endif // GTK 1.0
446
447 gint tmp = 0;
448 #if wxUSE_UNICODE
449 wxWX2MBbuf val = value.mbc_str();
450 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
451 #else
452 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
453 #endif
454
455 if (multi_line)
456 {
457 // Bring editable's cursor uptodate. Bug in GTK.
458 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
459 }
460
461 #endif
462 }
463
464 if (style & wxTE_PASSWORD)
465 {
466 if (!multi_line)
467 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
468 }
469
470 if (style & wxTE_READONLY)
471 {
472 if (!multi_line)
473 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
474 #ifdef __WXGTK20__
475 else
476 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
477 #else
478 }
479 else
480 {
481 if (multi_line)
482 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
483 #endif
484 }
485
486 #ifdef __WXGTK20__
487 if (multi_line)
488 {
489 if (style & wxTE_RIGHT)
490 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
491 else if (style & wxTE_CENTRE)
492 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
493 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
494 }
495 else
496 {
497 #ifdef __WXGTK24__
498 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
499 if (!gtk_check_version(2,4,0))
500 {
501 if (style & wxTE_RIGHT)
502 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
503 else if (style & wxTE_CENTRE)
504 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
505 }
506 #endif
507 }
508 #endif // __WXGTK20__
509
510 // We want to be notified about text changes.
511 #ifdef __WXGTK20__
512 if (multi_line)
513 {
514 g_signal_connect( G_OBJECT(m_buffer), "changed",
515 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
516 }
517 else
518 #endif
519
520 {
521 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
522 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
523 }
524
525 m_cursor = wxCursor( wxCURSOR_IBEAM );
526
527 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
528 SetDefaultStyle( attrDef );
529
530 return TRUE;
531 }
532
533
534 void wxTextCtrl::CalculateScrollbar()
535 {
536 #ifndef __WXGTK20__
537 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
538
539 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
540
541 if (adj->upper - adj->page_size < 0.8)
542 {
543 if (m_vScrollbarVisible)
544 {
545 gtk_widget_hide( m_vScrollbar );
546 m_vScrollbarVisible = FALSE;
547 }
548 }
549 else
550 {
551 if (!m_vScrollbarVisible)
552 {
553 gtk_widget_show( m_vScrollbar );
554 m_vScrollbarVisible = TRUE;
555 }
556 }
557 #endif
558 }
559
560 wxString wxTextCtrl::GetValue() const
561 {
562 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
563
564 wxString tmp;
565 if (m_windowStyle & wxTE_MULTILINE)
566 {
567 #ifdef __WXGTK20__
568 GtkTextIter start;
569 gtk_text_buffer_get_start_iter( m_buffer, &start );
570 GtkTextIter end;
571 gtk_text_buffer_get_end_iter( m_buffer, &end );
572 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
573
574 #if wxUSE_UNICODE
575 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
576 #else
577 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
578 #endif
579 if ( buffer )
580 tmp = buffer;
581
582 g_free( text );
583 #else
584 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
585 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
586 tmp = text;
587 g_free( text );
588 #endif
589 }
590 else
591 {
592 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
593 }
594
595 return tmp;
596 }
597
598 void wxTextCtrl::SetValue( const wxString &value )
599 {
600 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
601
602 if (m_windowStyle & wxTE_MULTILINE)
603 {
604 #ifdef __WXGTK20__
605
606 #if wxUSE_UNICODE
607 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
608 #else
609 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
610 #endif
611 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
612 IgnoreNextTextUpdate();
613
614 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
615
616 #else
617 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
618 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
619 len = 0;
620 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
621 #endif
622 }
623 else
624 {
625 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
626 }
627
628 // GRG, Jun/2000: Changed this after a lot of discussion in
629 // the lists. wxWidgets 2.2 will have a set of flags to
630 // customize this behaviour.
631 SetInsertionPoint(0);
632
633 m_modified = FALSE;
634 }
635
636 void wxTextCtrl::WriteText( const wxString &text )
637 {
638 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
639
640 if ( text.empty() )
641 return;
642
643 // gtk_text_changed_callback() will set m_modified to true but m_modified
644 // shouldn't be changed by the program writing to the text control itself,
645 // so save the old value and restore when we're done
646 bool oldModified = m_modified;
647
648 if ( m_windowStyle & wxTE_MULTILINE )
649 {
650 #ifdef __WXGTK20__
651
652 #if wxUSE_UNICODE
653 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
654 #else
655 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
656 #endif
657 if ( !buffer )
658 {
659 // what else can we do? at least don't crash...
660 return;
661 }
662
663 // TODO: Call whatever is needed to delete the selection.
664 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
665
666 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
667 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
668 if ( adj->value == adj->upper - adj->page_size )
669 {
670 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
671 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
672 }
673 #else // GTK 1.x
674 // After cursor movements, gtk_text_get_point() is wrong by one.
675 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
676
677 // always use m_defaultStyle, even if it is empty as otherwise
678 // resetting the style and appending some more text wouldn't work: if
679 // we don't specify the style explicitly, the old style would be used
680 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
681 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
682
683 // we called wxGtkTextInsert with correct font, no need to do anything
684 // in UpdateFontIfNeeded() any longer
685 if ( !text.empty() )
686 {
687 SetUpdateFont(FALSE);
688 }
689
690 // Bring editable's cursor back uptodate.
691 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
692 #endif // GTK 1.x/2.0
693 }
694 else // single line
695 {
696 // First remove the selection if there is one
697 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
698
699 // This moves the cursor pos to behind the inserted text.
700 gint len = GET_EDITABLE_POS(m_text);
701
702 #ifdef __WXGTK20__
703
704 #if wxUSE_UNICODE
705 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
706 #else
707 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
708 #endif
709 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
710
711 #else
712 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
713 #endif
714
715 // Bring entry's cursor uptodate.
716 gtk_entry_set_position( GTK_ENTRY(m_text), len );
717 }
718
719 m_modified = oldModified;
720 }
721
722 void wxTextCtrl::AppendText( const wxString &text )
723 {
724 SetInsertionPointEnd();
725 WriteText( text );
726 }
727
728 wxString wxTextCtrl::GetLineText( long lineNo ) const
729 {
730 if (m_windowStyle & wxTE_MULTILINE)
731 {
732 #ifndef __WXGTK20__
733 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
734 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
735
736 if (text)
737 {
738 wxString buf(wxT(""));
739 long i;
740 int currentLine = 0;
741 for (i = 0; currentLine != lineNo && text[i]; i++ )
742 if (text[i] == '\n')
743 currentLine++;
744 // Now get the text
745 int j;
746 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
747 buf += text[i];
748
749 g_free( text );
750 return buf;
751 }
752 else
753 {
754 return wxEmptyString;
755 }
756 #else
757 GtkTextIter line;
758 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
759 GtkTextIter end;
760 gtk_text_buffer_get_end_iter(m_buffer,&end );
761 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
762 wxString result(wxGTK_CONV_BACK(text));
763 g_free(text);
764 return result.BeforeFirst(wxT('\n'));
765 #endif
766 }
767 else
768 {
769 if (lineNo == 0) return GetValue();
770 return wxEmptyString;
771 }
772 }
773
774 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
775 {
776 /* If you implement this, don't forget to update the documentation!
777 * (file docs/latex/wx/text.tex) */
778 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
779 }
780
781 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
782 {
783 if ( m_windowStyle & wxTE_MULTILINE )
784 {
785 wxString text = GetValue();
786
787 // cast to prevent warning. But pos really should've been unsigned.
788 if( (unsigned long)pos > text.Len() )
789 return FALSE;
790
791 *x=0; // First Col
792 *y=0; // First Line
793
794 const wxChar* stop = text.c_str() + pos;
795 for ( const wxChar *p = text.c_str(); p < stop; p++ )
796 {
797 if (*p == wxT('\n'))
798 {
799 (*y)++;
800 *x=0;
801 }
802 else
803 (*x)++;
804 }
805 }
806 else // single line control
807 {
808 if ( pos <= GTK_ENTRY(m_text)->text_length )
809 {
810 *y = 0;
811 *x = pos;
812 }
813 else
814 {
815 // index out of bounds
816 return FALSE;
817 }
818 }
819
820 return TRUE;
821 }
822
823 long wxTextCtrl::XYToPosition(long x, long y ) const
824 {
825 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
826
827 long pos=0;
828 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
829
830 pos += x;
831 return pos;
832 }
833
834 int wxTextCtrl::GetLineLength(long lineNo) const
835 {
836 wxString str = GetLineText (lineNo);
837 return (int) str.Length();
838 }
839
840 int wxTextCtrl::GetNumberOfLines() const
841 {
842 if (m_windowStyle & wxTE_MULTILINE)
843 {
844 #ifdef __WXGTK20__
845 return gtk_text_buffer_get_line_count( m_buffer );
846 #else
847 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
848 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
849
850 if (text)
851 {
852 int currentLine = 0;
853 for (int i = 0; i < len; i++ )
854 {
855 if (text[i] == '\n')
856 currentLine++;
857 }
858 g_free( text );
859
860 // currentLine is 0 based, add 1 to get number of lines
861 return currentLine + 1;
862 }
863 else
864 {
865 return 0;
866 }
867 #endif
868 }
869 else
870 {
871 return 1;
872 }
873 }
874
875 void wxTextCtrl::SetInsertionPoint( long pos )
876 {
877 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
878
879 if ( IsMultiLine() )
880 {
881 #ifdef __WXGTK20__
882 GtkTextIter iter;
883 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
884 gtk_text_buffer_place_cursor( m_buffer, &iter );
885 gtk_text_view_scroll_mark_onscreen
886 (
887 GTK_TEXT_VIEW(m_text),
888 gtk_text_buffer_get_insert( m_buffer )
889 );
890 #else // GTK+ 1.x
891 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
892 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
893
894 /* we fake a set_point by inserting and deleting. as the user
895 isn't supposed to get to know about this non-sense, we
896 disconnect so that no events are sent to the user program. */
897
898 gint tmp = (gint)pos;
899 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
900 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
901
902 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
903 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
904
905 // bring editable's cursor uptodate. Bug in GTK.
906 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
907 #endif // GTK+ 2/1
908 }
909 else
910 {
911 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
912
913 // Bring editable's cursor uptodate. Bug in GTK.
914 SET_EDITABLE_POS(m_text, (guint32)pos);
915 }
916 }
917
918 void wxTextCtrl::SetInsertionPointEnd()
919 {
920 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
921
922 if (m_windowStyle & wxTE_MULTILINE)
923 {
924 #ifdef __WXGTK20__
925 GtkTextIter end;
926 gtk_text_buffer_get_end_iter( m_buffer, &end );
927 gtk_text_buffer_place_cursor( m_buffer, &end );
928 #else
929 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
930 #endif
931 }
932 else
933 {
934 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
935 }
936 }
937
938 void wxTextCtrl::SetEditable( bool editable )
939 {
940 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
941
942 if (m_windowStyle & wxTE_MULTILINE)
943 {
944 #ifdef __WXGTK20__
945 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
946 #else
947 gtk_text_set_editable( GTK_TEXT(m_text), editable );
948 #endif
949 }
950 else
951 {
952 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
953 }
954 }
955
956 bool wxTextCtrl::Enable( bool enable )
957 {
958 if (!wxWindowBase::Enable(enable))
959 {
960 // nothing to do
961 return FALSE;
962 }
963
964 if (m_windowStyle & wxTE_MULTILINE)
965 {
966 #ifdef __WXGTK20__
967 SetEditable( enable );
968 #else
969 gtk_text_set_editable( GTK_TEXT(m_text), enable );
970 OnParentEnable(enable);
971 #endif
972 }
973 else
974 {
975 gtk_widget_set_sensitive( m_text, enable );
976 }
977
978 return TRUE;
979 }
980
981 // wxGTK-specific: called recursively by Enable,
982 // to give widgets an oppprtunity to correct their colours after they
983 // have been changed by Enable
984 void wxTextCtrl::OnParentEnable( bool enable )
985 {
986 // If we have a custom background colour, we use this colour in both
987 // disabled and enabled mode, or we end up with a different colour under the
988 // text.
989 wxColour oldColour = GetBackgroundColour();
990 if (oldColour.Ok())
991 {
992 // Need to set twice or it'll optimize the useful stuff out
993 if (oldColour == * wxWHITE)
994 SetBackgroundColour(*wxBLACK);
995 else
996 SetBackgroundColour(*wxWHITE);
997 SetBackgroundColour(oldColour);
998 }
999 }
1000
1001 void wxTextCtrl::MarkDirty()
1002 {
1003 m_modified = TRUE;
1004 }
1005
1006 void wxTextCtrl::DiscardEdits()
1007 {
1008 m_modified = FALSE;
1009 }
1010
1011 // ----------------------------------------------------------------------------
1012 // max text length support
1013 // ----------------------------------------------------------------------------
1014
1015 void wxTextCtrl::IgnoreNextTextUpdate()
1016 {
1017 m_ignoreNextUpdate = TRUE;
1018 }
1019
1020 bool wxTextCtrl::IgnoreTextUpdate()
1021 {
1022 if ( m_ignoreNextUpdate )
1023 {
1024 m_ignoreNextUpdate = FALSE;
1025
1026 return TRUE;
1027 }
1028
1029 return FALSE;
1030 }
1031
1032 void wxTextCtrl::SetMaxLength(unsigned long len)
1033 {
1034 if ( !HasFlag(wxTE_MULTILINE) )
1035 {
1036 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1037
1038 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1039 // we had tried to enter more text than allowed by max text length and
1040 // the text wasn't really changed
1041 //
1042 // to detect this and generate TEXT_MAXLEN event instead of
1043 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1044 //
1045 // when max len is set to 0 we disconnect our handler as it means that
1046 // we shouldn't check anything any more
1047 if ( len )
1048 {
1049 gtk_signal_connect( GTK_OBJECT(m_text),
1050 "insert_text",
1051 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1052 (gpointer)this);
1053 }
1054 else // no checking
1055 {
1056 gtk_signal_disconnect_by_func
1057 (
1058 GTK_OBJECT(m_text),
1059 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1060 (gpointer)this
1061 );
1062 }
1063 }
1064 }
1065
1066 void wxTextCtrl::SetSelection( long from, long to )
1067 {
1068 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1069
1070 if (from == -1 && to == -1)
1071 {
1072 from = 0;
1073 to = GetValue().Length();
1074 }
1075
1076 #ifndef __WXGTK20__
1077 if ( (m_windowStyle & wxTE_MULTILINE) &&
1078 !GTK_TEXT(m_text)->line_start_cache )
1079 {
1080 // tell the programmer that it didn't work
1081 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1082 return;
1083 }
1084 #endif
1085
1086 if (m_windowStyle & wxTE_MULTILINE)
1087 {
1088 #ifdef __WXGTK20__
1089 GtkTextIter fromi, toi;
1090 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1091 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1092
1093 gtk_text_buffer_place_cursor( m_buffer, &toi );
1094 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1095 #else
1096 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1097 #endif
1098 }
1099 else
1100 {
1101 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1102 }
1103 }
1104
1105 void wxTextCtrl::ShowPosition( long pos )
1106 {
1107 if (m_windowStyle & wxTE_MULTILINE)
1108 {
1109 #ifdef __WXGTK20__
1110 GtkTextIter iter;
1111 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1112 gtk_text_iter_set_offset( &iter, pos );
1113 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1114 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1115 #else // GTK 1.x
1116 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1117 float totalLines = (float) GetNumberOfLines();
1118 long posX;
1119 long posY;
1120 PositionToXY(pos, &posX, &posY);
1121 float posLine = (float) posY;
1122 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1123 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1124 #endif // GTK 1.x/2.x
1125 }
1126 }
1127
1128 #ifdef __WXGTK20__
1129
1130 wxTextCtrlHitTestResult
1131 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1132 {
1133 if ( !IsMultiLine() )
1134 {
1135 // not supported
1136 return wxTE_HT_UNKNOWN;
1137 }
1138
1139 int x, y;
1140 gtk_text_view_window_to_buffer_coords
1141 (
1142 GTK_TEXT_VIEW(m_text),
1143 GTK_TEXT_WINDOW_TEXT,
1144 pt.x, pt.y,
1145 &x, &y
1146 );
1147
1148 GtkTextIter iter;
1149 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1150 if ( pos )
1151 *pos = gtk_text_iter_get_offset(&iter);
1152
1153 return wxTE_HT_ON_TEXT;
1154 }
1155
1156 #endif // __WXGTK20__
1157
1158 long wxTextCtrl::GetInsertionPoint() const
1159 {
1160 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1161
1162 #ifdef __WXGTK20__
1163 if (m_windowStyle & wxTE_MULTILINE)
1164 {
1165 // There is no direct accessor for the cursor, but
1166 // internally, the cursor is the "mark" called
1167 // "insert" in the text view's btree structure.
1168
1169 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1170 GtkTextIter cursor;
1171 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1172
1173 return gtk_text_iter_get_offset( &cursor );
1174 }
1175 else
1176 #endif
1177 {
1178 return (long) GET_EDITABLE_POS(m_text);
1179 }
1180 }
1181
1182 long wxTextCtrl::GetLastPosition() const
1183 {
1184 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1185
1186 int pos = 0;
1187
1188 if (m_windowStyle & wxTE_MULTILINE)
1189 {
1190 #ifdef __WXGTK20__
1191 GtkTextIter end;
1192 gtk_text_buffer_get_end_iter( m_buffer, &end );
1193
1194 pos = gtk_text_iter_get_offset( &end );
1195 #else
1196 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1197 #endif
1198 }
1199 else
1200 {
1201 pos = GTK_ENTRY(m_text)->text_length;
1202 }
1203
1204 return (long)pos;
1205 }
1206
1207 void wxTextCtrl::Remove( long from, long to )
1208 {
1209 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1210
1211 #ifdef __WXGTK20__
1212 if (m_windowStyle & wxTE_MULTILINE)
1213 {
1214 GtkTextIter fromi, toi;
1215 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1216 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1217
1218 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1219 }
1220 else // single line
1221 #endif
1222 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1223 }
1224
1225 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1226 {
1227 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1228
1229 Remove( from, to );
1230
1231 if (!value.IsEmpty())
1232 {
1233 #ifdef __WXGTK20__
1234 SetInsertionPoint( from );
1235 WriteText( value );
1236 #else // GTK 1.x
1237 gint pos = (gint)from;
1238 #if wxUSE_UNICODE
1239 wxWX2MBbuf buf = value.mbc_str();
1240 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1241 #else
1242 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1243 #endif // wxUSE_UNICODE
1244 #endif // GTK 1.x/2.x
1245 }
1246 }
1247
1248 void wxTextCtrl::Cut()
1249 {
1250 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1251
1252 #ifdef __WXGTK20__
1253 if (m_windowStyle & wxTE_MULTILINE)
1254 g_signal_emit_by_name(m_text, "cut-clipboard");
1255 else
1256 #endif
1257 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1258 }
1259
1260 void wxTextCtrl::Copy()
1261 {
1262 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1263
1264 #ifdef __WXGTK20__
1265 if (m_windowStyle & wxTE_MULTILINE)
1266 g_signal_emit_by_name(m_text, "copy-clipboard");
1267 else
1268 #endif
1269 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1270 }
1271
1272 void wxTextCtrl::Paste()
1273 {
1274 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1275
1276 #ifdef __WXGTK20__
1277 if (m_windowStyle & wxTE_MULTILINE)
1278 g_signal_emit_by_name(m_text, "paste-clipboard");
1279 else
1280 #endif
1281 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1282 }
1283
1284 // Undo/redo
1285 void wxTextCtrl::Undo()
1286 {
1287 // TODO
1288 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1289 }
1290
1291 void wxTextCtrl::Redo()
1292 {
1293 // TODO
1294 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1295 }
1296
1297 bool wxTextCtrl::CanUndo() const
1298 {
1299 // TODO
1300 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1301 return FALSE;
1302 }
1303
1304 bool wxTextCtrl::CanRedo() const
1305 {
1306 // TODO
1307 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1308 return FALSE;
1309 }
1310
1311 // If the return values from and to are the same, there is no
1312 // selection.
1313 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1314 {
1315 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1316
1317 gint from = -1;
1318 gint to = -1;
1319 bool haveSelection = FALSE;
1320
1321 #ifdef __WXGTK20__
1322 if (m_windowStyle & wxTE_MULTILINE)
1323 {
1324 GtkTextIter ifrom, ito;
1325 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1326 {
1327 haveSelection = TRUE;
1328 from = gtk_text_iter_get_offset(&ifrom);
1329 to = gtk_text_iter_get_offset(&ito);
1330 }
1331 }
1332 else // not multi-line
1333 {
1334 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1335 &from, &to) )
1336 {
1337 haveSelection = TRUE;
1338 }
1339 }
1340 #else // not GTK2
1341 if ( (GTK_EDITABLE(m_text)->has_selection) )
1342 {
1343 haveSelection = TRUE;
1344 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1345 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1346 }
1347 #endif
1348
1349 if (! haveSelection )
1350 from = to = GetInsertionPoint();
1351
1352 if ( from > to )
1353 {
1354 // exchange them to be compatible with wxMSW
1355 gint tmp = from;
1356 from = to;
1357 to = tmp;
1358 }
1359
1360 if ( fromOut )
1361 *fromOut = from;
1362 if ( toOut )
1363 *toOut = to;
1364 }
1365
1366
1367 bool wxTextCtrl::IsEditable() const
1368 {
1369 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1370
1371 #ifdef __WXGTK20__
1372 if (m_windowStyle & wxTE_MULTILINE)
1373 {
1374 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1375 }
1376 else
1377 {
1378 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1379 }
1380 #else
1381 return GTK_EDITABLE(m_text)->editable;
1382 #endif
1383 }
1384
1385 bool wxTextCtrl::IsModified() const
1386 {
1387 return m_modified;
1388 }
1389
1390 void wxTextCtrl::Clear()
1391 {
1392 SetValue( wxT("") );
1393 }
1394
1395 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1396 {
1397 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1398
1399 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1400 {
1401 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1402 event.SetEventObject(this);
1403 event.SetString(GetValue());
1404 if (GetEventHandler()->ProcessEvent(event)) return;
1405 }
1406
1407 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1408 {
1409 // This will invoke the dialog default action, such
1410 // as the clicking the default button.
1411
1412 wxWindow *top_frame = m_parent;
1413 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1414 top_frame = top_frame->GetParent();
1415
1416 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1417 {
1418 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1419
1420 if (window->default_widget)
1421 {
1422 gtk_widget_activate (window->default_widget);
1423 return;
1424 }
1425 }
1426 }
1427
1428 key_event.Skip();
1429 }
1430
1431 GtkWidget* wxTextCtrl::GetConnectWidget()
1432 {
1433 return GTK_WIDGET(m_text);
1434 }
1435
1436 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1437 {
1438 if (m_windowStyle & wxTE_MULTILINE)
1439 {
1440 #ifdef __WXGTK20__
1441 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1442 #else
1443 return (window == GTK_TEXT(m_text)->text_area);
1444 #endif
1445 }
1446 else
1447 {
1448 return (window == GTK_ENTRY(m_text)->text_area);
1449 }
1450 }
1451
1452 // the font will change for subsequent text insertiongs
1453 bool wxTextCtrl::SetFont( const wxFont &font )
1454 {
1455 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1456
1457 if ( !wxTextCtrlBase::SetFont(font) )
1458 {
1459 // font didn't change, nothing to do
1460 return FALSE;
1461 }
1462
1463 if ( m_windowStyle & wxTE_MULTILINE )
1464 {
1465 SetUpdateFont(TRUE);
1466
1467 m_defaultStyle.SetFont(font);
1468
1469 ChangeFontGlobally();
1470 }
1471
1472 return TRUE;
1473 }
1474
1475 void wxTextCtrl::ChangeFontGlobally()
1476 {
1477 // this method is very inefficient and hence should be called as rarely as
1478 // possible!
1479 //
1480 // TODO: it can be implemented much more efficiently for GTK2
1481 #ifndef __WXGTK20__
1482 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1483
1484 _T("shouldn't be called for single line controls") );
1485 #else
1486 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1487 _T("shouldn't be called for single line controls") );
1488 #endif
1489
1490 wxString value = GetValue();
1491 if ( !value.IsEmpty() )
1492 {
1493 SetUpdateFont(FALSE);
1494
1495 Clear();
1496 AppendText(value);
1497 }
1498 }
1499
1500 #ifndef __WXGTK20__
1501
1502 void wxTextCtrl::UpdateFontIfNeeded()
1503 {
1504 if ( m_updateFont )
1505 ChangeFontGlobally();
1506 }
1507
1508 #endif // GTK+ 1.x
1509
1510 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1511 {
1512 if ( !wxControl::SetForegroundColour(colour) )
1513 return FALSE;
1514
1515 // update default fg colour too
1516 m_defaultStyle.SetTextColour(colour);
1517
1518 return TRUE;
1519 }
1520
1521 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1522 {
1523 wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1524
1525 if ( !wxControl::SetBackgroundColour( colour ) )
1526 return FALSE;
1527
1528 #ifndef __WXGTK20__
1529 if (!m_widget->window)
1530 return FALSE;
1531 #endif
1532
1533 if (!m_backgroundColour.Ok())
1534 return FALSE;
1535
1536 if (m_windowStyle & wxTE_MULTILINE)
1537 {
1538 #ifndef __WXGTK20__
1539 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1540 if (!window)
1541 return FALSE;
1542 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1543 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1544 gdk_window_clear( window );
1545 #endif
1546 }
1547
1548 // change active background color too
1549 m_defaultStyle.SetBackgroundColour( colour );
1550
1551 return TRUE;
1552 }
1553
1554 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1555 {
1556 if ( m_windowStyle & wxTE_MULTILINE )
1557 {
1558 if ( style.IsDefault() )
1559 {
1560 // nothing to do
1561 return TRUE;
1562 }
1563 #ifdef __WXGTK20__
1564 gint l = gtk_text_buffer_get_char_count( m_buffer );
1565
1566 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1567 _T("invalid range in wxTextCtrl::SetStyle") );
1568
1569 GtkTextIter starti, endi;
1570 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1571 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1572
1573 // use the attributes from style which are set in it and fall back
1574 // first to the default style and then to the text control default
1575 // colours for the others
1576 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1577
1578 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1579
1580 return TRUE;
1581 #else
1582 // VERY dirty way to do that - removes the required text and re-adds it
1583 // with styling (FIXME)
1584
1585 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1586
1587 wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1588 _T("invalid range in wxTextCtrl::SetStyle") );
1589
1590 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1591 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1592 wxString tmp(text,*wxConvCurrent);
1593 g_free( text );
1594
1595 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1596 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1597
1598 #if wxUSE_UNICODE
1599 wxWX2MBbuf buf = tmp.mbc_str();
1600 const char *txt = buf;
1601 size_t txtlen = strlen(buf);
1602 #else
1603 const char *txt = tmp;
1604 size_t txtlen = tmp.length();
1605 #endif
1606
1607 // use the attributes from style which are set in it and fall back
1608 // first to the default style and then to the text control default
1609 // colours for the others
1610 wxGtkTextInsert(m_text,
1611 wxTextAttr::Combine(style, m_defaultStyle, this),
1612 txt,
1613 txtlen);
1614
1615 /* does not seem to help under GTK+ 1.2 !!!
1616 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1617 SetInsertionPoint( old_pos );
1618 #endif
1619 return TRUE;
1620 }
1621 else // singe line
1622 {
1623 // cannot do this for GTK+'s Entry widget
1624 return FALSE;
1625 }
1626 }
1627
1628 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1629 {
1630 gtk_widget_modify_style(m_text, style);
1631 }
1632
1633 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1634 {
1635 Cut();
1636 }
1637
1638 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1639 {
1640 Copy();
1641 }
1642
1643 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1644 {
1645 Paste();
1646 }
1647
1648 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1649 {
1650 Undo();
1651 }
1652
1653 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1654 {
1655 Redo();
1656 }
1657
1658 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1659 {
1660 event.Enable( CanCut() );
1661 }
1662
1663 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1664 {
1665 event.Enable( CanCopy() );
1666 }
1667
1668 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1669 {
1670 event.Enable( CanPaste() );
1671 }
1672
1673 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1674 {
1675 event.Enable( CanUndo() );
1676 }
1677
1678 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1679 {
1680 event.Enable( CanRedo() );
1681 }
1682
1683 void wxTextCtrl::OnInternalIdle()
1684 {
1685 wxCursor cursor = m_cursor;
1686 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1687
1688 if (cursor.Ok())
1689 {
1690 #ifndef __WXGTK20__
1691 GdkWindow *window = (GdkWindow*) NULL;
1692 if (HasFlag(wxTE_MULTILINE))
1693 window = GTK_TEXT(m_text)->text_area;
1694 else
1695 window = GTK_ENTRY(m_text)->text_area;
1696
1697 if (window)
1698 gdk_window_set_cursor( window, cursor.GetCursor() );
1699
1700 if (!g_globalCursor.Ok())
1701 cursor = *wxSTANDARD_CURSOR;
1702
1703 window = m_widget->window;
1704 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1705 gdk_window_set_cursor( window, cursor.GetCursor() );
1706 #endif
1707 }
1708
1709 if (g_delayedFocus == this)
1710 {
1711 if (GTK_WIDGET_REALIZED(m_widget))
1712 {
1713 gtk_widget_grab_focus( m_widget );
1714 g_delayedFocus = NULL;
1715 }
1716 }
1717
1718 if (wxUpdateUIEvent::CanUpdate(this))
1719 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1720 }
1721
1722 wxSize wxTextCtrl::DoGetBestSize() const
1723 {
1724 // FIXME should be different for multi-line controls...
1725 wxSize ret( wxControl::DoGetBestSize() );
1726 wxSize best(80, ret.y);
1727 CacheBestSize(best);
1728 return best;
1729 }
1730
1731 // ----------------------------------------------------------------------------
1732 // freeze/thaw
1733 // ----------------------------------------------------------------------------
1734
1735 void wxTextCtrl::Freeze()
1736 {
1737 if ( HasFlag(wxTE_MULTILINE) )
1738 {
1739 #ifdef __WXGTK20__
1740 if ( !m_frozenness++ )
1741 {
1742 // freeze textview updates and remove buffer
1743 g_signal_connect( G_OBJECT(m_text), "expose_event",
1744 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
1745 g_signal_connect( G_OBJECT(m_widget), "expose_event",
1746 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
1747 gtk_widget_set_sensitive(m_widget, false);
1748 g_object_ref(m_buffer);
1749 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
1750 }
1751 #else
1752 gtk_text_freeze(GTK_TEXT(m_text));
1753 #endif
1754 }
1755 }
1756
1757 void wxTextCtrl::Thaw()
1758 {
1759 if ( HasFlag(wxTE_MULTILINE) )
1760 {
1761 #ifdef __WXGTK20__
1762 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
1763
1764 if ( !--m_frozenness )
1765 {
1766 // Reattach buffer and thaw textview updates
1767 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1768 g_object_unref(m_buffer);
1769 gtk_widget_set_sensitive(m_widget, true);
1770 g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
1771 g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
1772 }
1773 #else
1774 GTK_TEXT(m_text)->vadj->value = 0.0;
1775
1776 gtk_text_thaw(GTK_TEXT(m_text));
1777 #endif
1778 }
1779 }
1780
1781 // ----------------------------------------------------------------------------
1782 // scrolling
1783 // ----------------------------------------------------------------------------
1784
1785 GtkAdjustment *wxTextCtrl::GetVAdj() const
1786 {
1787 if ( !IsMultiLine() )
1788 return NULL;
1789
1790 #ifdef __WXGTK20__
1791 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
1792 #else
1793 return GTK_TEXT(m_text)->vadj;
1794 #endif
1795 }
1796
1797 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1798 {
1799 float value = adj->value + diff;
1800
1801 if ( value < 0 )
1802 value = 0;
1803
1804 float upper = adj->upper - adj->page_size;
1805 if ( value > upper )
1806 value = upper;
1807
1808 // did we noticeably change the scroll position?
1809 if ( fabs(adj->value - value) < 0.2 )
1810 {
1811 // well, this is what Robert does in wxScrollBar, so it must be good...
1812 return FALSE;
1813 }
1814
1815 adj->value = value;
1816
1817 #ifdef __WXGTK20__
1818 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
1819 #else
1820 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1821 #endif
1822
1823 return TRUE;
1824 }
1825
1826 bool wxTextCtrl::ScrollLines(int lines)
1827 {
1828 GtkAdjustment *adj = GetVAdj();
1829 if ( !adj )
1830 return FALSE;
1831
1832 #ifdef __WXGTK20__
1833 int diff = (int)ceil(lines*adj->step_increment);
1834 #else
1835 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1836 int diff = 10*lines;
1837 #endif
1838
1839 return DoScroll(adj, diff);
1840 }
1841
1842 bool wxTextCtrl::ScrollPages(int pages)
1843 {
1844 GtkAdjustment *adj = GetVAdj();
1845 if ( !adj )
1846 return FALSE;
1847
1848 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1849 }
1850
1851
1852 // static
1853 wxVisualAttributes
1854 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1855 {
1856 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1857 }
wxWidgets (Impactor)