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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/textctrl.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin, 2005 Mart Raudsepp
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #include "wx/textctrl.h"
14
15 #ifndef WX_PRECOMP
16 #include "wx/intl.h"
17 #include "wx/log.h"
18 #include "wx/utils.h"
19 #include "wx/panel.h"
20 #endif
21
22 #include "wx/math.h"
23 #include "wx/settings.h"
24 #include "wx/strconv.h"
25 #include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
26
27 #include <sys/types.h>
28 #include <sys/stat.h>
29 #include <ctype.h>
30 #include "wx/math.h"
31
32 #include "wx/gtk/private.h"
33 #include <gdk/gdkkeysyms.h>
34
35 //-----------------------------------------------------------------------------
36 // data
37 //-----------------------------------------------------------------------------
38
39 extern wxWindowGTK *g_delayedFocus;
40
41 // ----------------------------------------------------------------------------
42 // helpers
43 // ----------------------------------------------------------------------------
44
45 extern "C" {
46 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
47 GtkTextTag *tag,
48 GtkTextIter *start,
49 GtkTextIter *end,
50 char *prefix)
51 {
52 gchar *name;
53 g_object_get (tag, "name", &name, NULL);
54
55 if (!name || strncmp(name, prefix, strlen(prefix)))
56 // anonymous tag or not starting with prefix - don't remove
57 g_signal_stop_emission_by_name (buffer, "remove_tag");
58
59 g_free(name);
60 }
61 }
62
63 extern "C" {
64 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
65 const wxTextAttr& attr,
66 GtkTextIter *start,
67 GtkTextIter *end)
68 {
69 static gchar buf[1024];
70 GtkTextTag *tag;
71
72 gulong remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
73 G_CALLBACK (wxGtkOnRemoveTag), gpointer("WX"));
74 gtk_text_buffer_remove_all_tags(text_buffer, start, end);
75 g_signal_handler_disconnect (text_buffer, remove_handler_id);
76
77 if (attr.HasFont())
78 {
79 char *font_string;
80 PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
81 font_string = pango_font_description_to_string(font_description);
82 g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
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 "font-desc", font_description,
88 NULL );
89 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
90 g_free (font_string);
91
92 if (attr.GetFont().GetUnderlined())
93 {
94 g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
95 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
96 buf );
97 if (!tag)
98 tag = gtk_text_buffer_create_tag( text_buffer, buf,
99 "underline-set", TRUE,
100 "underline", PANGO_UNDERLINE_SINGLE,
101 NULL );
102 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
103 }
104 }
105
106 if (attr.HasTextColour())
107 {
108 GdkColor *colFg = attr.GetTextColour().GetColor();
109 g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
110 colFg->red, colFg->green, colFg->blue);
111 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
112 buf );
113 if (!tag)
114 tag = gtk_text_buffer_create_tag( text_buffer, buf,
115 "foreground-gdk", colFg, NULL );
116 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
117 }
118
119 if (attr.HasBackgroundColour())
120 {
121 GdkColor *colBg = attr.GetBackgroundColour().GetColor();
122 g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
123 colBg->red, colBg->green, colBg->blue);
124 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
125 buf );
126 if (!tag)
127 tag = gtk_text_buffer_create_tag( text_buffer, buf,
128 "background-gdk", colBg, NULL );
129 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
130 }
131
132 if (attr.HasAlignment())
133 {
134 GtkTextIter para_start, para_end = *end;
135 gtk_text_buffer_get_iter_at_line( text_buffer,
136 &para_start,
137 gtk_text_iter_get_line(start) );
138 gtk_text_iter_forward_line(&para_end);
139
140 remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
141 G_CALLBACK(wxGtkOnRemoveTag),
142 gpointer("WXALIGNMENT"));
143 gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
144 g_signal_handler_disconnect (text_buffer, remove_handler_id);
145
146 GtkJustification align;
147 switch (attr.GetAlignment())
148 {
149 default:
150 align = GTK_JUSTIFY_LEFT;
151 break;
152 case wxTEXT_ALIGNMENT_RIGHT:
153 align = GTK_JUSTIFY_RIGHT;
154 break;
155 case wxTEXT_ALIGNMENT_CENTER:
156 align = GTK_JUSTIFY_CENTER;
157 break;
158 // gtk+ doesn't support justify as of gtk+-2.7.4
159 }
160
161 g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
162 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
163 buf );
164 if (!tag)
165 tag = gtk_text_buffer_create_tag( text_buffer, buf,
166 "justification", align, NULL );
167 gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
168 }
169 }
170 }
171
172 extern "C" {
173 static void wxGtkTextInsert(GtkWidget *text,
174 GtkTextBuffer *text_buffer,
175 const wxTextAttr& attr,
176 const wxCharBuffer& buffer)
177
178 {
179 gint start_offset;
180 GtkTextIter iter, start;
181
182 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
183 gtk_text_buffer_get_insert (text_buffer) );
184 start_offset = gtk_text_iter_get_offset (&iter);
185 gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
186
187 gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
188
189 wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
190 }
191 }
192
193 // ----------------------------------------------------------------------------
194 // "insert_text" for GtkEntry
195 // ----------------------------------------------------------------------------
196
197 extern "C" {
198 static void
199 gtk_insert_text_callback(GtkEditable *editable,
200 const gchar *new_text,
201 gint new_text_length,
202 gint *position,
203 wxTextCtrl *win)
204 {
205 if (g_isIdle)
206 wxapp_install_idle_handler();
207
208 // we should only be called if we have a max len limit at all
209 GtkEntry *entry = GTK_ENTRY (editable);
210
211 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
212
213 // check that we don't overflow the max length limit
214 //
215 // FIXME: this doesn't work when we paste a string which is going to be
216 // truncated
217 if ( entry->text_length == entry->text_max_length )
218 {
219 // we don't need to run the base class version at all
220 g_signal_stop_emission_by_name (editable, "insert_text");
221
222 // remember that the next changed signal is to be ignored to avoid
223 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
224 win->IgnoreNextTextUpdate();
225
226 // and generate the correct one ourselves
227 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
228 event.SetEventObject(win);
229 event.SetString(win->GetValue());
230 win->GetEventHandler()->ProcessEvent( event );
231 }
232 }
233 }
234
235 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
236
237 extern "C" {
238 static void
239 au_apply_tag_callback(GtkTextBuffer *buffer,
240 GtkTextTag *tag,
241 GtkTextIter *start,
242 GtkTextIter *end,
243 gpointer textctrl)
244 {
245 if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
246 g_signal_stop_emission_by_name (buffer, "apply_tag");
247 }
248 }
249
250 //-----------------------------------------------------------------------------
251 // GtkTextCharPredicates for gtk_text_iter_*_find_char
252 //-----------------------------------------------------------------------------
253
254 extern "C" {
255 static gboolean
256 pred_whitespace (gunichar ch, gpointer user_data)
257 {
258 return g_unichar_isspace(ch);
259 }
260 }
261
262 extern "C" {
263 static gboolean
264 pred_non_whitespace (gunichar ch, gpointer user_data)
265 {
266 return !g_unichar_isspace(ch);
267 }
268 }
269
270 extern "C" {
271 static gboolean
272 pred_nonpunct (gunichar ch, gpointer user_data)
273 {
274 return !g_unichar_ispunct(ch);
275 }
276 }
277
278 extern "C" {
279 static gboolean
280 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
281 {
282 return !g_unichar_ispunct(ch) || ch == '/';
283 }
284 }
285
286 //-----------------------------------------------------------------------------
287 // Check for links between s and e and correct tags as necessary
288 //-----------------------------------------------------------------------------
289
290 // This function should be made match better while being efficient at one point.
291 // Most probably with a row of regular expressions.
292 extern "C" {
293 static void
294 au_check_word( GtkTextIter *s, GtkTextIter *e )
295 {
296 static const char *URIPrefixes[] =
297 {
298 "http://",
299 "ftp://",
300 "www.",
301 "ftp.",
302 "mailto://",
303 "https://",
304 "file://",
305 "nntp://",
306 "news://",
307 "telnet://",
308 "mms://",
309 "gopher://",
310 "prospero://",
311 "wais://",
312 };
313
314 GtkTextIter start = *s, end = *e;
315 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
316
317 // Get our special link tag
318 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
319
320 // Get rid of punctuation from beginning and end.
321 // Might want to move this to au_check_range if an improved link checking doesn't
322 // use some intelligent punctuation checking itself (beware of undesired iter modifications).
323 if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
324 gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
325
326 gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
327 gtk_text_iter_forward_char(&end);
328
329 gchar* text = gtk_text_iter_get_text( &start, &end );
330 size_t len = strlen(text), prefix_len;
331 size_t n;
332
333 for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
334 {
335 prefix_len = strlen(URIPrefixes[n]);
336 if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
337 break;
338 }
339
340 if(n < WXSIZEOF(URIPrefixes))
341 {
342 gulong signal_id = g_signal_handler_find (buffer,
343 (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
344 0, 0, NULL,
345 (gpointer)au_apply_tag_callback, NULL);
346
347 g_signal_handler_block (buffer, signal_id);
348 gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
349 g_signal_handler_unblock (buffer, signal_id);
350 }
351 }
352 }
353
354 extern "C" {
355 static void
356 au_check_range(GtkTextIter *s,
357 GtkTextIter *range_end)
358 {
359 GtkTextIter range_start = *s;
360 GtkTextIter word_end;
361 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
362 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
363
364 gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
365
366 if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
367 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
368
369 while(!gtk_text_iter_equal(&range_start, range_end))
370 {
371 word_end = range_start;
372 gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
373
374 // Now we should have a word delimited by range_start and word_end, correct link tags
375 au_check_word(&range_start, &word_end);
376
377 range_start = word_end;
378 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
379 }
380 }
381 }
382
383 //-----------------------------------------------------------------------------
384 // "insert-text" for GtkTextBuffer
385 //-----------------------------------------------------------------------------
386
387 extern "C" {
388 static void
389 au_insert_text_callback(GtkTextBuffer *buffer,
390 GtkTextIter *end,
391 gchar *text,
392 gint len,
393 wxTextCtrl *win)
394 {
395 if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
396 return;
397
398 GtkTextIter start = *end;
399 gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
400
401 GtkTextIter line_start = start;
402 GtkTextIter line_end = *end;
403 GtkTextIter words_start = start;
404 GtkTextIter words_end = *end;
405
406 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
407 gtk_text_iter_forward_to_line_end(&line_end);
408 gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
409 gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
410
411 au_check_range(&words_start, &words_end);
412 }
413 }
414
415 //-----------------------------------------------------------------------------
416 // "delete-range" for GtkTextBuffer
417 //-----------------------------------------------------------------------------
418
419 extern "C" {
420 static void
421 au_delete_range_callback(GtkTextBuffer *buffer,
422 GtkTextIter *start,
423 GtkTextIter *end,
424 wxTextCtrl *win)
425 {
426 if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
427 return;
428
429 GtkTextIter line_start = *start, line_end = *end;
430
431 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
432 gtk_text_iter_forward_to_line_end(&line_end);
433 gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
434 gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
435
436 au_check_range(start, end);
437 }
438 }
439
440
441 //-----------------------------------------------------------------------------
442 // "changed"
443 //-----------------------------------------------------------------------------
444
445 extern "C" {
446 static void
447 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
448 {
449 if ( win->IgnoreTextUpdate() )
450 return;
451
452 if (!win->m_hasVMT) return;
453
454 if (g_isIdle)
455 wxapp_install_idle_handler();
456
457 if ( win->MarkDirtyOnChange() )
458 win->MarkDirty();
459
460 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
461 event.SetEventObject( win );
462 win->GetEventHandler()->ProcessEvent( event );
463 }
464 }
465
466 //-----------------------------------------------------------------------------
467 // clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
468 //-----------------------------------------------------------------------------
469
470 // common part of the event handlers below
471 static void
472 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
473 wxEventType eventType, const gchar * signal_name)
474 {
475 wxClipboardTextEvent event( eventType, win->GetId() );
476 event.SetEventObject( win );
477 if ( win->GetEventHandler()->ProcessEvent( event ) )
478 {
479 // don't let the default processing to take place if we did something
480 // ourselves in the event handler
481 g_signal_stop_emission_by_name (widget, signal_name);
482 }
483 }
484
485 extern "C" {
486 static void
487 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
488 {
489 handle_text_clipboard_callback(
490 widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
491 }
492
493 static void
494 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
495 {
496 handle_text_clipboard_callback(
497 widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
498 }
499
500 static void
501 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
502 {
503 handle_text_clipboard_callback(
504 widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
505 }
506 }
507
508 //-----------------------------------------------------------------------------
509 // "expose_event" from scrolled window and textview
510 //-----------------------------------------------------------------------------
511
512 extern "C" {
513 static gboolean
514 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
515 {
516 return TRUE;
517 }
518 }
519
520
521 //-----------------------------------------------------------------------------
522 // wxTextCtrl
523 //-----------------------------------------------------------------------------
524
525 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
526
527 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
528 EVT_CHAR(wxTextCtrl::OnChar)
529
530 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
531 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
532 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
533 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
534 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
535
536 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
537 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
538 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
539 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
540 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
541
542 // wxTE_AUTO_URL wxTextUrl support. Currently only creates
543 // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
544 EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
545 EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
546 EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
547 EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
548 EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
549 EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
550 EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
551 END_EVENT_TABLE()
552
553 void wxTextCtrl::Init()
554 {
555 m_dontMarkDirty =
556 m_ignoreNextUpdate =
557 m_modified = false;
558
559 SetUpdateFont(false);
560
561 m_text = NULL;
562 m_frozenness = 0;
563 m_gdkHandCursor = NULL;
564 m_gdkXTermCursor = NULL;
565 }
566
567 wxTextCtrl::~wxTextCtrl()
568 {
569 if(m_gdkHandCursor)
570 gdk_cursor_unref(m_gdkHandCursor);
571 if(m_gdkXTermCursor)
572 gdk_cursor_unref(m_gdkXTermCursor);
573 }
574
575 wxTextCtrl::wxTextCtrl( wxWindow *parent,
576 wxWindowID id,
577 const wxString &value,
578 const wxPoint &pos,
579 const wxSize &size,
580 long style,
581 const wxValidator& validator,
582 const wxString &name )
583 {
584 Init();
585
586 Create( parent, id, value, pos, size, style, validator, name );
587 }
588
589 bool wxTextCtrl::Create( wxWindow *parent,
590 wxWindowID id,
591 const wxString &value,
592 const wxPoint &pos,
593 const wxSize &size,
594 long style,
595 const wxValidator& validator,
596 const wxString &name )
597 {
598 m_needParent = true;
599 m_acceptsFocus = true;
600
601 if (!PreCreation( parent, pos, size ) ||
602 !CreateBase( parent, id, pos, size, style, validator, name ))
603 {
604 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
605 return false;
606 }
607
608 bool multi_line = (style & wxTE_MULTILINE) != 0;
609
610 if (multi_line)
611 {
612 // Create view
613 m_text = gtk_text_view_new();
614
615 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
616
617 // create scrolled window
618 m_widget = gtk_scrolled_window_new( NULL, NULL );
619 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
620 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
621 // for ScrollLines/Pages
622 m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
623
624 // Insert view into scrolled window
625 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
626
627 // translate wx wrapping style to GTK+
628 GtkWrapMode wrap;
629 if ( HasFlag( wxTE_DONTWRAP ) )
630 wrap = GTK_WRAP_NONE;
631 else if ( HasFlag( wxTE_CHARWRAP ) )
632 wrap = GTK_WRAP_CHAR;
633 else if ( HasFlag( wxTE_WORDWRAP ) )
634 wrap = GTK_WRAP_WORD;
635 else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
636 {
637 // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
638 #ifdef __WXGTK24__
639 if ( !gtk_check_version(2,4,0) )
640 {
641 wrap = GTK_WRAP_WORD_CHAR;
642 }
643 else
644 #endif
645 wrap = GTK_WRAP_WORD;
646 }
647
648 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
649
650 GtkScrolledWindowSetBorder(m_widget, style);
651
652 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
653
654 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
655 }
656 else
657 {
658 // a single-line text control: no need for scrollbars
659 m_widget =
660 m_text = gtk_entry_new();
661
662 if (style & wxNO_BORDER)
663 g_object_set (m_text, "has-frame", FALSE, NULL);
664 }
665
666 m_parent->DoAddChild( this );
667
668 m_focusWidget = m_text;
669
670 PostCreation(size);
671
672 if (multi_line)
673 {
674 gtk_widget_show(m_text);
675 }
676
677 if (!value.empty())
678 {
679 SetValue( value );
680 }
681
682 if (style & wxTE_PASSWORD)
683 {
684 if (!multi_line)
685 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
686 }
687
688 if (style & wxTE_READONLY)
689 {
690 if (!multi_line)
691 gtk_editable_set_editable( GTK_EDITABLE(m_text), FALSE );
692 else
693 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
694 }
695
696 if (multi_line)
697 {
698 if (style & wxTE_RIGHT)
699 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
700 else if (style & wxTE_CENTRE)
701 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
702 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
703 }
704 else
705 {
706 #ifdef __WXGTK24__
707 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
708 if (!gtk_check_version(2,4,0))
709 {
710 if (style & wxTE_RIGHT)
711 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
712 else if (style & wxTE_CENTRE)
713 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
714 }
715 #endif
716 }
717
718 // We want to be notified about text changes.
719 if (multi_line)
720 {
721 g_signal_connect (m_buffer, "changed",
722 G_CALLBACK (gtk_text_changed_callback), this);
723
724 // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
725 if (style & wxTE_AUTO_URL)
726 {
727 GtkTextIter start, end;
728 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
729 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
730
731 // We create our wxUrl tag here for slight efficiency gain - we
732 // don't have to check for the tag existance in callbacks,
733 // hereby it's guaranteed to exist.
734 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
735 "foreground", "blue",
736 "underline", PANGO_UNDERLINE_SINGLE,
737 NULL);
738
739 // Check for URLs after each text change
740 g_signal_connect_after (m_buffer, "insert_text",
741 G_CALLBACK (au_insert_text_callback), this);
742 g_signal_connect_after (m_buffer, "delete_range",
743 G_CALLBACK (au_delete_range_callback), this);
744
745 // Block all wxUrl tag applying unless we do it ourselves, in which case we
746 // block this callback temporarily. This takes care of gtk+ internal
747 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
748 // which is undesired because only a part of the URL might be copied.
749 // The insert-text signal emitted inside it will take care of newly formed
750 // or wholly copied URLs.
751 g_signal_connect (m_buffer, "apply_tag",
752 G_CALLBACK (au_apply_tag_callback), NULL);
753
754 // Check for URLs in the initial string passed to Create
755 gtk_text_buffer_get_start_iter(m_buffer, &start);
756 gtk_text_buffer_get_end_iter(m_buffer, &end);
757 au_check_range(&start, &end);
758 }
759 }
760 else
761 {
762 g_signal_connect (m_text, "changed",
763 G_CALLBACK (gtk_text_changed_callback), this);
764 }
765
766 g_signal_connect (m_text, "copy-clipboard",
767 G_CALLBACK (gtk_copy_clipboard_callback), this);
768 g_signal_connect (m_text, "cut-clipboard",
769 G_CALLBACK (gtk_cut_clipboard_callback), this);
770 g_signal_connect (m_text, "paste-clipboard",
771 G_CALLBACK (gtk_paste_clipboard_callback), this);
772
773 m_cursor = wxCursor( wxCURSOR_IBEAM );
774
775 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
776 SetDefaultStyle( attrDef );
777
778 return true;
779 }
780
781
782 void wxTextCtrl::CalculateScrollbar()
783 {
784 }
785
786 wxString wxTextCtrl::GetValue() const
787 {
788 wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
789
790 wxString tmp;
791 if (m_windowStyle & wxTE_MULTILINE)
792 {
793 GtkTextIter start;
794 gtk_text_buffer_get_start_iter( m_buffer, &start );
795 GtkTextIter end;
796 gtk_text_buffer_get_end_iter( m_buffer, &end );
797 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
798
799 const wxWxCharBuffer buf = wxGTK_CONV_BACK(text);
800 if ( buf )
801 tmp = buf;
802
803 g_free( text );
804 }
805 else
806 {
807 const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
808 const wxWxCharBuffer buf = wxGTK_CONV_BACK( text );
809 if ( buf )
810 tmp = buf;
811 }
812
813 return tmp;
814 }
815
816 void wxTextCtrl::SetValue( const wxString &value )
817 {
818 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
819
820 // the control won't be modified any more as we programmatically replace
821 // all the existing text, so reset the flag and don't set it again (and do
822 // it now, before the text event handler is ran so that IsModified() called
823 // from there returns the expected value)
824 m_modified = false;
825 DontMarkDirtyOnNextChange();
826
827 if (m_windowStyle & wxTE_MULTILINE)
828 {
829 const wxCharBuffer buffer(wxGTK_CONV(value));
830 if ( !buffer )
831 {
832 // what else can we do? at least don't crash...
833 return;
834 }
835
836 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
837 IgnoreNextTextUpdate();
838
839 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
840 }
841 else // single line
842 {
843 // gtk_entry_set_text() emits two "changed" signals because internally
844 // it calls gtk_editable_delete_text() and gtk_editable_insert_text()
845 // but we want to have only one event
846 IgnoreNextTextUpdate();
847
848 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV(value) );
849 }
850
851 // GRG, Jun/2000: Changed this after a lot of discussion in
852 // the lists. wxWidgets 2.2 will have a set of flags to
853 // customize this behaviour.
854 SetInsertionPoint(0);
855 }
856
857 void wxTextCtrl::WriteText( const wxString &text )
858 {
859 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
860
861 if ( text.empty() )
862 return;
863
864 const wxCharBuffer buffer(wxGTK_CONV(text));
865 if ( !buffer )
866 {
867 // what else can we do? at least don't crash...
868 return;
869 }
870
871 // we're changing the text programmatically
872 DontMarkDirtyOnNextChange();
873
874 if ( m_windowStyle & wxTE_MULTILINE )
875 {
876 // First remove the selection if there is one
877 // TODO: Is there an easier GTK specific way to do this?
878 long from, to;
879 GetSelection(&from, &to);
880 if (from != to)
881 Remove(from, to);
882
883 // Insert the text
884 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
885
886 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
887 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
888 if ( wxIsSameDouble(adj->value, adj->upper - adj->page_size) )
889 {
890 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
891 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
892 }
893 }
894 else // single line
895 {
896 // First remove the selection if there is one
897 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
898
899 // This moves the cursor pos to behind the inserted text.
900 gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
901
902 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
903
904 // Bring entry's cursor uptodate.
905 gtk_editable_set_position( GTK_EDITABLE(m_text), len );
906 }
907 }
908
909 void wxTextCtrl::AppendText( const wxString &text )
910 {
911 SetInsertionPointEnd();
912 WriteText( text );
913 }
914
915 wxString wxTextCtrl::GetLineText( long lineNo ) const
916 {
917 if (m_windowStyle & wxTE_MULTILINE)
918 {
919 GtkTextIter line;
920 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
921 GtkTextIter end = line;
922 gtk_text_iter_forward_to_line_end(&end);
923 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
924 wxString result(wxGTK_CONV_BACK(text));
925 g_free(text);
926 return result;
927 }
928 else
929 {
930 if (lineNo == 0) return GetValue();
931 return wxEmptyString;
932 }
933 }
934
935 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
936 {
937 /* If you implement this, don't forget to update the documentation!
938 * (file docs/latex/wx/text.tex) */
939 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
940 }
941
942 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
943 {
944 if ( m_windowStyle & wxTE_MULTILINE )
945 {
946 GtkTextIter iter;
947 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
948 if (gtk_text_iter_is_end(&iter))
949 return false;
950
951 *y = gtk_text_iter_get_line(&iter);
952 *x = gtk_text_iter_get_line_offset(&iter);
953 }
954 else // single line control
955 {
956 if ( pos <= GTK_ENTRY(m_text)->text_length )
957 {
958 *y = 0;
959 *x = pos;
960 }
961 else
962 {
963 // index out of bounds
964 return false;
965 }
966 }
967
968 return true;
969 }
970
971 long wxTextCtrl::XYToPosition(long x, long y ) const
972 {
973 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
974
975 GtkTextIter iter;
976 if (y >= gtk_text_buffer_get_line_count (m_buffer))
977 return -1;
978
979 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
980 if (x >= gtk_text_iter_get_chars_in_line (&iter))
981 return -1;
982
983 return gtk_text_iter_get_offset(&iter) + x;
984 }
985
986 int wxTextCtrl::GetLineLength(long lineNo) const
987 {
988 if (m_windowStyle & wxTE_MULTILINE)
989 {
990 int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
991 if (lineNo > last_line)
992 return -1;
993
994 GtkTextIter iter;
995 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
996 // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
997 return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
998 }
999 else
1000 {
1001 wxString str = GetLineText (lineNo);
1002 return (int) str.length();
1003 }
1004 }
1005
1006 int wxTextCtrl::GetNumberOfLines() const
1007 {
1008 if ( m_windowStyle & wxTE_MULTILINE )
1009 {
1010 GtkTextIter iter;
1011 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, 0 );
1012
1013 // move forward by one display line until the end is reached
1014 int lineCount = 1;
1015 while ( gtk_text_view_forward_display_line(GTK_TEXT_VIEW(m_text), &iter) )
1016 {
1017 lineCount++;
1018 }
1019
1020 // If the last character in the text buffer is a newline,
1021 // gtk_text_view_forward_display_line() will return false without that
1022 // line being counted. Must add one manually in that case.
1023 GtkTextIter lastCharIter;
1024 gtk_text_buffer_get_iter_at_offset
1025 (
1026 m_buffer,
1027 &lastCharIter,
1028 gtk_text_buffer_get_char_count(m_buffer) - 1
1029 );
1030 gchar lastChar = gtk_text_iter_get_char( &lastCharIter );
1031 if ( lastChar == wxT('\n') )
1032 lineCount++;
1033
1034 return lineCount;
1035 }
1036 else // single line
1037 {
1038 return 1;
1039 }
1040 }
1041
1042 void wxTextCtrl::SetInsertionPoint( long pos )
1043 {
1044 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1045
1046 if ( IsMultiLine() )
1047 {
1048 GtkTextIter iter;
1049 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1050 gtk_text_buffer_place_cursor( m_buffer, &iter );
1051 gtk_text_view_scroll_mark_onscreen
1052 (
1053 GTK_TEXT_VIEW(m_text),
1054 gtk_text_buffer_get_insert( m_buffer )
1055 );
1056 }
1057 else
1058 {
1059 // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1060 gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1061 }
1062 }
1063
1064 void wxTextCtrl::SetInsertionPointEnd()
1065 {
1066 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1067
1068 if (m_windowStyle & wxTE_MULTILINE)
1069 {
1070 GtkTextIter end;
1071 gtk_text_buffer_get_end_iter( m_buffer, &end );
1072 gtk_text_buffer_place_cursor( m_buffer, &end );
1073 }
1074 else
1075 {
1076 gtk_editable_set_position( GTK_EDITABLE(m_text), -1 );
1077 }
1078 }
1079
1080 void wxTextCtrl::SetEditable( bool editable )
1081 {
1082 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1083
1084 if (m_windowStyle & wxTE_MULTILINE)
1085 {
1086 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1087 }
1088 else
1089 {
1090 gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1091 }
1092 }
1093
1094 bool wxTextCtrl::Enable( bool enable )
1095 {
1096 if (!wxWindowBase::Enable(enable))
1097 {
1098 // nothing to do
1099 return false;
1100 }
1101
1102 if (m_windowStyle & wxTE_MULTILINE)
1103 {
1104 SetEditable( enable );
1105 }
1106 else
1107 {
1108 gtk_widget_set_sensitive( m_text, enable );
1109 }
1110
1111 return true;
1112 }
1113
1114 // wxGTK-specific: called recursively by Enable,
1115 // to give widgets an oppprtunity to correct their colours after they
1116 // have been changed by Enable
1117 void wxTextCtrl::OnParentEnable( bool enable )
1118 {
1119 // If we have a custom background colour, we use this colour in both
1120 // disabled and enabled mode, or we end up with a different colour under the
1121 // text.
1122 wxColour oldColour = GetBackgroundColour();
1123 if (oldColour.Ok())
1124 {
1125 // Need to set twice or it'll optimize the useful stuff out
1126 if (oldColour == * wxWHITE)
1127 SetBackgroundColour(*wxBLACK);
1128 else
1129 SetBackgroundColour(*wxWHITE);
1130 SetBackgroundColour(oldColour);
1131 }
1132 }
1133
1134 void wxTextCtrl::MarkDirty()
1135 {
1136 m_modified = true;
1137 }
1138
1139 void wxTextCtrl::DiscardEdits()
1140 {
1141 m_modified = false;
1142 }
1143
1144 // ----------------------------------------------------------------------------
1145 // max text length support
1146 // ----------------------------------------------------------------------------
1147
1148 bool wxTextCtrl::IgnoreTextUpdate()
1149 {
1150 if ( m_ignoreNextUpdate )
1151 {
1152 m_ignoreNextUpdate = false;
1153
1154 return true;
1155 }
1156
1157 return false;
1158 }
1159
1160 bool wxTextCtrl::MarkDirtyOnChange()
1161 {
1162 if ( m_dontMarkDirty )
1163 {
1164 m_dontMarkDirty = false;
1165
1166 return false;
1167 }
1168
1169 return true;
1170 }
1171
1172 void wxTextCtrl::SetMaxLength(unsigned long len)
1173 {
1174 if ( !HasFlag(wxTE_MULTILINE) )
1175 {
1176 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1177
1178 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1179 // we had tried to enter more text than allowed by max text length and
1180 // the text wasn't really changed
1181 //
1182 // to detect this and generate TEXT_MAXLEN event instead of
1183 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1184 //
1185 // when max len is set to 0 we disconnect our handler as it means that
1186 // we shouldn't check anything any more
1187 if ( len )
1188 {
1189 g_signal_connect (m_text, "insert_text",
1190 G_CALLBACK (gtk_insert_text_callback), this);
1191 }
1192 else // no checking
1193 {
1194 g_signal_handlers_disconnect_by_func (m_text,
1195 (gpointer) gtk_insert_text_callback, this);
1196 }
1197 }
1198 }
1199
1200 void wxTextCtrl::SetSelection( long from, long to )
1201 {
1202 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1203
1204 if (from == -1 && to == -1)
1205 {
1206 from = 0;
1207 to = GetValue().length();
1208 }
1209
1210 if (m_windowStyle & wxTE_MULTILINE)
1211 {
1212 GtkTextIter fromi, toi;
1213 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1214 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1215
1216 gtk_text_buffer_place_cursor( m_buffer, &toi );
1217 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1218 }
1219 else
1220 {
1221 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1222 }
1223 }
1224
1225 void wxTextCtrl::ShowPosition( long pos )
1226 {
1227 if (m_windowStyle & wxTE_MULTILINE)
1228 {
1229 GtkTextIter iter;
1230 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1231 gtk_text_iter_set_offset( &iter, pos );
1232 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1233 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1234 }
1235 }
1236
1237 wxTextCtrlHitTestResult
1238 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1239 {
1240 if ( !IsMultiLine() )
1241 {
1242 // not supported
1243 return wxTE_HT_UNKNOWN;
1244 }
1245
1246 int x, y;
1247 gtk_text_view_window_to_buffer_coords
1248 (
1249 GTK_TEXT_VIEW(m_text),
1250 GTK_TEXT_WINDOW_TEXT,
1251 pt.x, pt.y,
1252 &x, &y
1253 );
1254
1255 GtkTextIter iter;
1256 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1257 if ( pos )
1258 *pos = gtk_text_iter_get_offset(&iter);
1259
1260 return wxTE_HT_ON_TEXT;
1261 }
1262
1263 long wxTextCtrl::GetInsertionPoint() const
1264 {
1265 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1266
1267 if (m_windowStyle & wxTE_MULTILINE)
1268 {
1269 // There is no direct accessor for the cursor, but
1270 // internally, the cursor is the "mark" called
1271 // "insert" in the text view's btree structure.
1272
1273 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1274 GtkTextIter cursor;
1275 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1276
1277 return gtk_text_iter_get_offset( &cursor );
1278 }
1279 else
1280 {
1281 return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1282 }
1283 }
1284
1285 wxTextPos wxTextCtrl::GetLastPosition() const
1286 {
1287 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1288
1289 int pos = 0;
1290
1291 if (m_windowStyle & wxTE_MULTILINE)
1292 {
1293 GtkTextIter end;
1294 gtk_text_buffer_get_end_iter( m_buffer, &end );
1295
1296 pos = gtk_text_iter_get_offset( &end );
1297 }
1298 else
1299 {
1300 pos = GTK_ENTRY(m_text)->text_length;
1301 }
1302
1303 return (long)pos;
1304 }
1305
1306 void wxTextCtrl::Remove( long from, long to )
1307 {
1308 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1309
1310 if (m_windowStyle & wxTE_MULTILINE)
1311 {
1312 GtkTextIter fromi, toi;
1313 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1314 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1315
1316 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1317 }
1318 else // single line
1319 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1320 }
1321
1322 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1323 {
1324 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1325
1326 Remove( from, to );
1327
1328 if (!value.empty())
1329 {
1330 SetInsertionPoint( from );
1331 WriteText( value );
1332 }
1333 }
1334
1335 void wxTextCtrl::Cut()
1336 {
1337 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1338
1339 if (m_windowStyle & wxTE_MULTILINE)
1340 g_signal_emit_by_name (m_text, "cut-clipboard");
1341 else
1342 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1343 }
1344
1345 void wxTextCtrl::Copy()
1346 {
1347 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1348
1349 if (m_windowStyle & wxTE_MULTILINE)
1350 g_signal_emit_by_name (m_text, "copy-clipboard");
1351 else
1352 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1353 }
1354
1355 void wxTextCtrl::Paste()
1356 {
1357 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1358
1359 if (m_windowStyle & wxTE_MULTILINE)
1360 g_signal_emit_by_name (m_text, "paste-clipboard");
1361 else
1362 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1363 }
1364
1365 // Undo/redo
1366 void wxTextCtrl::Undo()
1367 {
1368 // TODO
1369 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1370 }
1371
1372 void wxTextCtrl::Redo()
1373 {
1374 // TODO
1375 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1376 }
1377
1378 bool wxTextCtrl::CanUndo() const
1379 {
1380 // TODO
1381 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1382 return false;
1383 }
1384
1385 bool wxTextCtrl::CanRedo() const
1386 {
1387 // TODO
1388 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1389 return false;
1390 }
1391
1392 // If the return values from and to are the same, there is no
1393 // selection.
1394 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1395 {
1396 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1397
1398 gint from = -1;
1399 gint to = -1;
1400 bool haveSelection = false;
1401
1402 if (m_windowStyle & wxTE_MULTILINE)
1403 {
1404 GtkTextIter ifrom, ito;
1405 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1406 {
1407 haveSelection = true;
1408 from = gtk_text_iter_get_offset(&ifrom);
1409 to = gtk_text_iter_get_offset(&ito);
1410 }
1411 }
1412 else // not multi-line
1413 {
1414 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1415 &from, &to) )
1416 {
1417 haveSelection = true;
1418 }
1419 }
1420
1421 if (! haveSelection )
1422 from = to = GetInsertionPoint();
1423
1424 if ( from > to )
1425 {
1426 // exchange them to be compatible with wxMSW
1427 gint tmp = from;
1428 from = to;
1429 to = tmp;
1430 }
1431
1432 if ( fromOut )
1433 *fromOut = from;
1434 if ( toOut )
1435 *toOut = to;
1436 }
1437
1438
1439 bool wxTextCtrl::IsEditable() const
1440 {
1441 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1442
1443 if (m_windowStyle & wxTE_MULTILINE)
1444 {
1445 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1446 }
1447 else
1448 {
1449 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1450 }
1451 }
1452
1453 bool wxTextCtrl::IsModified() const
1454 {
1455 return m_modified;
1456 }
1457
1458 void wxTextCtrl::Clear()
1459 {
1460 SetValue( wxEmptyString );
1461 }
1462
1463 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1464 {
1465 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1466
1467 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER))
1468 {
1469 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1470 event.SetEventObject(this);
1471 event.SetString(GetValue());
1472 if (GetEventHandler()->ProcessEvent(event)) return;
1473 }
1474
1475 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1476 {
1477 // This will invoke the dialog default action, such
1478 // as the clicking the default button.
1479
1480 wxWindow *top_frame = m_parent;
1481 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1482 top_frame = top_frame->GetParent();
1483
1484 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1485 {
1486 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1487
1488 if (window->default_widget)
1489 {
1490 gtk_widget_activate (window->default_widget);
1491 return;
1492 }
1493 }
1494 }
1495
1496 key_event.Skip();
1497 }
1498
1499 GtkWidget* wxTextCtrl::GetConnectWidget()
1500 {
1501 return GTK_WIDGET(m_text);
1502 }
1503
1504 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1505 {
1506 if (m_windowStyle & wxTE_MULTILINE)
1507 {
1508 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1509 }
1510 else
1511 {
1512 return (window == GTK_ENTRY(m_text)->text_area);
1513 }
1514 }
1515
1516 // the font will change for subsequent text insertiongs
1517 bool wxTextCtrl::SetFont( const wxFont &font )
1518 {
1519 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1520
1521 if ( !wxTextCtrlBase::SetFont(font) )
1522 {
1523 // font didn't change, nothing to do
1524 return false;
1525 }
1526
1527 if ( m_windowStyle & wxTE_MULTILINE )
1528 {
1529 SetUpdateFont(true);
1530
1531 m_defaultStyle.SetFont(font);
1532
1533 ChangeFontGlobally();
1534 }
1535
1536 return true;
1537 }
1538
1539 void wxTextCtrl::ChangeFontGlobally()
1540 {
1541 // this method is very inefficient and hence should be called as rarely as
1542 // possible!
1543 //
1544 // TODO: it can be implemented much more efficiently for GTK2
1545 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1546 _T("shouldn't be called for single line controls") );
1547
1548 wxString value = GetValue();
1549 if ( !value.empty() )
1550 {
1551 SetUpdateFont(false);
1552
1553 Clear();
1554 AppendText(value);
1555 }
1556 }
1557
1558 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1559 {
1560 if ( !wxControl::SetForegroundColour(colour) )
1561 return false;
1562
1563 // update default fg colour too
1564 m_defaultStyle.SetTextColour(colour);
1565
1566 return true;
1567 }
1568
1569 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1570 {
1571 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1572
1573 if ( !wxControl::SetBackgroundColour( colour ) )
1574 return false;
1575
1576 if (!m_backgroundColour.Ok())
1577 return false;
1578
1579 // change active background color too
1580 m_defaultStyle.SetBackgroundColour( colour );
1581
1582 return true;
1583 }
1584
1585 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1586 {
1587 if ( m_windowStyle & wxTE_MULTILINE )
1588 {
1589 if ( style.IsDefault() )
1590 {
1591 // nothing to do
1592 return true;
1593 }
1594
1595 gint l = gtk_text_buffer_get_char_count( m_buffer );
1596
1597 wxCHECK_MSG( start >= 0 && end <= l, false,
1598 _T("invalid range in wxTextCtrl::SetStyle") );
1599
1600 GtkTextIter starti, endi;
1601 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1602 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1603
1604 // use the attributes from style which are set in it and fall back
1605 // first to the default style and then to the text control default
1606 // colours for the others
1607 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1608
1609 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1610
1611 return true;
1612 }
1613
1614 // else single line
1615 // cannot do this for GTK+'s Entry widget
1616 return false;
1617 }
1618
1619 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1620 {
1621 gtk_widget_modify_style(m_text, style);
1622 }
1623
1624 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1625 {
1626 Cut();
1627 }
1628
1629 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1630 {
1631 Copy();
1632 }
1633
1634 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1635 {
1636 Paste();
1637 }
1638
1639 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1640 {
1641 Undo();
1642 }
1643
1644 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1645 {
1646 Redo();
1647 }
1648
1649 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1650 {
1651 event.Enable( CanCut() );
1652 }
1653
1654 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1655 {
1656 event.Enable( CanCopy() );
1657 }
1658
1659 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1660 {
1661 event.Enable( CanPaste() );
1662 }
1663
1664 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1665 {
1666 event.Enable( CanUndo() );
1667 }
1668
1669 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1670 {
1671 event.Enable( CanRedo() );
1672 }
1673
1674 void wxTextCtrl::OnInternalIdle()
1675 {
1676 if (g_delayedFocus == this)
1677 {
1678 if (GTK_WIDGET_REALIZED(m_widget))
1679 {
1680 gtk_widget_grab_focus( m_widget );
1681 g_delayedFocus = NULL;
1682 }
1683 }
1684
1685 if (wxUpdateUIEvent::CanUpdate(this))
1686 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1687 }
1688
1689 wxSize wxTextCtrl::DoGetBestSize() const
1690 {
1691 // FIXME should be different for multi-line controls...
1692 wxSize ret( wxControl::DoGetBestSize() );
1693 wxSize best(80, ret.y);
1694 CacheBestSize(best);
1695 return best;
1696 }
1697
1698 // ----------------------------------------------------------------------------
1699 // freeze/thaw
1700 // ----------------------------------------------------------------------------
1701
1702 void wxTextCtrl::Freeze()
1703 {
1704 if ( HasFlag(wxTE_MULTILINE) )
1705 {
1706 if ( !m_frozenness++ )
1707 {
1708 // freeze textview updates and remove buffer
1709 g_signal_connect (m_text, "expose_event",
1710 G_CALLBACK (gtk_text_exposed_callback), this);
1711 g_signal_connect (m_widget, "expose_event",
1712 G_CALLBACK (gtk_text_exposed_callback), this);
1713 gtk_widget_set_sensitive(m_widget, false);
1714 g_object_ref(m_buffer);
1715 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
1716 }
1717 }
1718 }
1719
1720 void wxTextCtrl::Thaw()
1721 {
1722 if ( HasFlag(wxTE_MULTILINE) )
1723 {
1724 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
1725
1726 if ( !--m_frozenness )
1727 {
1728 // Reattach buffer and thaw textview updates
1729 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1730 g_object_unref(m_buffer);
1731 gtk_widget_set_sensitive(m_widget, true);
1732 g_signal_handlers_disconnect_by_func (m_widget,
1733 (gpointer) gtk_text_exposed_callback, this);
1734 g_signal_handlers_disconnect_by_func (m_text,
1735 (gpointer) gtk_text_exposed_callback, this);
1736 }
1737 }
1738 }
1739
1740 // ----------------------------------------------------------------------------
1741 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1742 // ----------------------------------------------------------------------------
1743
1744 // FIXME: when dragging on a link the sample gets an "Unknown event".
1745 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1746 // a buggy sample, or something else
1747 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1748 {
1749 event.Skip();
1750 if(!(m_windowStyle & wxTE_AUTO_URL))
1751 return;
1752
1753 gint x, y;
1754 GtkTextIter start, end;
1755 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1756 "wxUrl");
1757
1758 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1759 event.GetX(), event.GetY(), &x, &y);
1760
1761 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1762 if (!gtk_text_iter_has_tag(&end, tag))
1763 {
1764 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1765 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1766 return;
1767 }
1768
1769 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1770 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1771
1772 start = end;
1773 if(!gtk_text_iter_begins_tag(&start, tag))
1774 gtk_text_iter_backward_to_tag_toggle(&start, tag);
1775 if(!gtk_text_iter_ends_tag(&end, tag))
1776 gtk_text_iter_forward_to_tag_toggle(&end, tag);
1777
1778 // Native context menu is probably not desired on an URL.
1779 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1780 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1781 event.Skip(false);
1782
1783 wxTextUrlEvent url_event(m_windowId, event,
1784 gtk_text_iter_get_offset(&start),
1785 gtk_text_iter_get_offset(&end));
1786
1787 InitCommandEvent(url_event);
1788 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1789 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1790 GetEventHandler()->ProcessEvent(url_event);
1791 }
1792
1793 // static
1794 wxVisualAttributes
1795 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1796 {
1797 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1798 }