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GTK+ callbacks must have C linkage (patch 1157384)
[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 extern "C" {
148 static void
149 gtk_insert_text_callback(GtkEditable *editable,
150 const gchar *new_text,
151 gint new_text_length,
152 gint *position,
153 wxTextCtrl *win)
154 {
155 if (g_isIdle)
156 wxapp_install_idle_handler();
157
158 // we should only be called if we have a max len limit at all
159 GtkEntry *entry = GTK_ENTRY (editable);
160
161 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
162
163 // check that we don't overflow the max length limit
164 //
165 // FIXME: this doesn't work when we paste a string which is going to be
166 // truncated
167 if ( entry->text_length == entry->text_max_length )
168 {
169 // we don't need to run the base class version at all
170 gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
171
172 // remember that the next changed signal is to be ignored to avoid
173 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
174 win->IgnoreNextTextUpdate();
175
176 // and generate the correct one ourselves
177 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
178 event.SetEventObject(win);
179 event.SetString(win->GetValue());
180 win->GetEventHandler()->ProcessEvent( event );
181 }
182 }
183 }
184
185 #ifdef __WXGTK20__
186 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
187
188 extern "C" {
189 static void
190 au_apply_tag_callback(GtkTextBuffer *buffer,
191 GtkTextTag *tag,
192 GtkTextIter *start,
193 GtkTextIter *end,
194 gpointer textctrl)
195 {
196 if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
197 g_signal_stop_emission_by_name(buffer, "apply_tag");
198 }
199 }
200
201 //-----------------------------------------------------------------------------
202 // GtkTextCharPredicates for gtk_text_iter_*_find_char
203 //-----------------------------------------------------------------------------
204
205 extern "C" {
206 static gboolean
207 pred_whitespace (gunichar ch, gpointer user_data)
208 {
209 return g_unichar_isspace(ch);
210 }
211 }
212
213 extern "C" {
214 static gboolean
215 pred_non_whitespace (gunichar ch, gpointer user_data)
216 {
217 return !g_unichar_isspace(ch);
218 }
219 }
220
221 extern "C" {
222 static gboolean
223 pred_nonpunct (gunichar ch, gpointer user_data)
224 {
225 return !g_unichar_ispunct(ch);
226 }
227 }
228
229 extern "C" {
230 static gboolean
231 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
232 {
233 return !g_unichar_ispunct(ch) || ch == '/';
234 }
235 }
236
237 //-----------------------------------------------------------------------------
238 // Check for links between s and e and correct tags as necessary
239 //-----------------------------------------------------------------------------
240
241 // This function should be made match better while being efficient at one point.
242 // Most probably with a row of regular expressions.
243 extern "C" {
244 static void
245 au_check_word( GtkTextIter *s, GtkTextIter *e )
246 {
247 static const char *URIPrefixes[] =
248 {
249 "http://",
250 "ftp://",
251 "www.",
252 "ftp.",
253 "mailto://",
254 "https://",
255 "file://",
256 "nntp://",
257 "news://",
258 "telnet://",
259 "mms://",
260 "gopher://",
261 "prospero://",
262 "wais://",
263 };
264
265 GtkTextIter start = *s, end = *e;
266 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
267
268 // Get our special link tag
269 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
270
271 // Get rid of punctuation from beginning and end.
272 // Might want to move this to au_check_range if an improved link checking doesn't
273 // use some intelligent punctuation checking itself (beware of undesired iter modifications).
274 if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
275 gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
276
277 gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
278 gtk_text_iter_forward_char(&end);
279
280 gchar* text = gtk_text_iter_get_text( &start, &end );
281 size_t len = strlen(text), prefix_len;
282 size_t n;
283
284 for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
285 {
286 prefix_len = strlen(URIPrefixes[n]);
287 if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
288 break;
289 }
290
291 if(n < WXSIZEOF(URIPrefixes))
292 {
293 gulong signal_id = g_signal_handler_find(buffer,
294 (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
295 0, 0, NULL,
296 (gpointer)au_apply_tag_callback, NULL);
297
298 g_signal_handler_block(buffer, signal_id);
299 gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
300 g_signal_handler_unblock(buffer, signal_id);
301 }
302 }
303 }
304
305 extern "C" {
306 static void
307 au_check_range(GtkTextIter *s,
308 GtkTextIter *range_end)
309 {
310 GtkTextIter range_start = *s;
311 GtkTextIter word_end;
312 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
313 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
314
315 gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
316
317 if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
318 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
319
320 while(!gtk_text_iter_equal(&range_start, range_end))
321 {
322 word_end = range_start;
323 gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
324
325 // Now we should have a word delimited by range_start and word_end, correct link tags
326 au_check_word(&range_start, &word_end);
327
328 range_start = word_end;
329 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
330 }
331 }
332 }
333
334 //-----------------------------------------------------------------------------
335 // "insert-text" for GtkTextBuffer
336 //-----------------------------------------------------------------------------
337
338 extern "C" {
339 static void
340 au_insert_text_callback(GtkTextBuffer *buffer,
341 GtkTextIter *end,
342 gchar *text,
343 gint len,
344 wxTextCtrl *win)
345 {
346 if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
347 return;
348
349 GtkTextIter start = *end;
350 gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
351
352 GtkTextIter line_start = start;
353 GtkTextIter line_end = *end;
354 GtkTextIter words_start = start;
355 GtkTextIter words_end = *end;
356
357 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
358 gtk_text_iter_forward_to_line_end(&line_end);
359 gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
360 gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
361
362 au_check_range(&words_start, &words_end);
363 }
364 }
365
366 //-----------------------------------------------------------------------------
367 // "delete-range" for GtkTextBuffer
368 //-----------------------------------------------------------------------------
369
370 extern "C" {
371 static void
372 au_delete_range_callback(GtkTextBuffer *buffer,
373 GtkTextIter *start,
374 GtkTextIter *end,
375 wxTextCtrl *win)
376 {
377 if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
378 return;
379
380 GtkTextIter line_start = *start, line_end = *end;
381
382 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
383 gtk_text_iter_forward_to_line_end(&line_end);
384 gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
385 gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
386
387 au_check_range(start, end);
388 }
389 }
390
391
392 #endif
393
394 //-----------------------------------------------------------------------------
395 // "changed"
396 //-----------------------------------------------------------------------------
397
398 extern "C" {
399 static void
400 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
401 {
402 if ( win->IgnoreTextUpdate() )
403 return;
404
405 if (!win->m_hasVMT) return;
406
407 if (g_isIdle)
408 wxapp_install_idle_handler();
409
410 win->SetModified();
411 #ifndef __WXGTK20__
412 win->UpdateFontIfNeeded();
413 #endif // !__WXGTK20__
414
415 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
416 event.SetEventObject( win );
417 win->GetEventHandler()->ProcessEvent( event );
418 }
419 }
420
421 //-----------------------------------------------------------------------------
422 // "expose_event" from scrolled window and textview
423 //-----------------------------------------------------------------------------
424
425 #ifdef __WXGTK20__
426 extern "C" {
427 static gboolean
428 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
429 {
430 return TRUE;
431 }
432 }
433 #endif
434
435 //-----------------------------------------------------------------------------
436 // "changed" from vertical scrollbar
437 //-----------------------------------------------------------------------------
438
439 #ifndef __WXGTK20__
440 extern "C" {
441 static void
442 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
443 {
444 if (!win->m_hasVMT) return;
445
446 if (g_isIdle)
447 wxapp_install_idle_handler();
448
449 win->CalculateScrollbar();
450 }
451 }
452 #endif
453
454 // ----------------------------------------------------------------------------
455 // redraw callback for multiline text
456 // ----------------------------------------------------------------------------
457
458 #ifndef __WXGTK20__
459
460 // redrawing a GtkText from inside a wxYield() call results in crashes (the
461 // text sample shows it in its "Add lines" command which shows wxProgressDialog
462 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
463 // don't do anything if we're inside wxYield()
464
465 extern bool wxIsInsideYield;
466
467 extern "C" {
468 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
469 }
470
471 static GtkDrawCallback gs_gtk_text_draw = NULL;
472
473 extern "C" {
474 static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
475 {
476 if ( !wxIsInsideYield )
477 {
478 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
479 _T("infinite recursion in wxgtk_text_draw aborted") );
480
481 gs_gtk_text_draw(widget, rect);
482 }
483 }
484 }
485
486 #endif // __WXGTK20__
487
488 //-----------------------------------------------------------------------------
489 // wxTextCtrl
490 //-----------------------------------------------------------------------------
491
492 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
493
494 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
495 EVT_CHAR(wxTextCtrl::OnChar)
496
497 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
498 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
499 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
500 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
501 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
502
503 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
504 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
505 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
506 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
507 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
508
509 #ifdef __WXGTK20__
510 // wxTE_AUTO_URL wxTextUrl support. Currently only creates
511 // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
512 EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
513 EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
514 EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
515 EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
516 EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
517 EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
518 EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
519 #endif
520 END_EVENT_TABLE()
521
522 void wxTextCtrl::Init()
523 {
524 m_ignoreNextUpdate =
525 m_modified = false;
526 SetUpdateFont(false);
527 m_text =
528 m_vScrollbar = (GtkWidget *)NULL;
529 #ifdef __WXGTK20__
530 m_frozenness = 0;
531 m_gdkHandCursor = NULL;
532 m_gdkXTermCursor = NULL;
533 #endif
534 }
535
536 wxTextCtrl::~wxTextCtrl()
537 {
538 #ifdef __WXGTK20__
539 if(m_gdkHandCursor)
540 gdk_cursor_unref(m_gdkHandCursor);
541 if(m_gdkXTermCursor)
542 gdk_cursor_unref(m_gdkXTermCursor);
543 #endif
544 }
545
546 wxTextCtrl::wxTextCtrl( wxWindow *parent,
547 wxWindowID id,
548 const wxString &value,
549 const wxPoint &pos,
550 const wxSize &size,
551 long style,
552 const wxValidator& validator,
553 const wxString &name )
554 {
555 Init();
556
557 Create( parent, id, value, pos, size, style, validator, name );
558 }
559
560 bool wxTextCtrl::Create( wxWindow *parent,
561 wxWindowID id,
562 const wxString &value,
563 const wxPoint &pos,
564 const wxSize &size,
565 long style,
566 const wxValidator& validator,
567 const wxString &name )
568 {
569 m_needParent = true;
570 m_acceptsFocus = true;
571
572 if (!PreCreation( parent, pos, size ) ||
573 !CreateBase( parent, id, pos, size, style, validator, name ))
574 {
575 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
576 return false;
577 }
578
579
580 m_vScrollbarVisible = false;
581
582 bool multi_line = (style & wxTE_MULTILINE) != 0;
583
584 if (multi_line)
585 {
586 #ifdef __WXGTK20__
587 // Create view
588 m_text = gtk_text_view_new();
589
590 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
591
592 // create scrolled window
593 m_widget = gtk_scrolled_window_new( NULL, NULL );
594 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
595 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
596
597 // Insert view into scrolled window
598 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
599
600 // translate wx wrapping style to GTK+
601 if ( HasFlag( wxTE_DONTWRAP ) )
602 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
603 else if ( HasFlag( wxTE_LINEWRAP ) )
604 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_CHAR );
605 else // HasFlag(wxTE_WORDWRAP) always true as wxTE_WORDWRAP == 0
606 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD_CHAR );
607
608 if (!HasFlag(wxNO_BORDER))
609 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
610
611 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
612
613 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
614 #else // GTK+ 1
615 // create our control ...
616 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
617
618 // ... and put into the upper left hand corner of the table
619 bool bHasHScrollbar = false;
620 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
621 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
622 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
623 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
624 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
625 0, 0);
626
627 // always wrap words
628 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
629
630 // finally, put the vertical scrollbar in the upper right corner
631 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
632 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
633 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
634 GTK_FILL,
635 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
636 0, 0);
637 #endif // GTK+ 2/1
638 }
639 else
640 {
641 // a single-line text control: no need for scrollbars
642 m_widget =
643 m_text = gtk_entry_new();
644
645 #ifdef __WXGTK20__
646 if (style & wxNO_BORDER)
647 g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
648 #endif
649 }
650
651 m_parent->DoAddChild( this );
652
653 m_focusWidget = m_text;
654
655 PostCreation(size);
656
657 if (multi_line)
658 gtk_widget_show(m_text);
659
660 #ifndef __WXGTK20__
661 if (multi_line)
662 {
663 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
664 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
665
666 // only initialize gs_gtk_text_draw once, starting from the next the
667 // klass::draw will already be wxgtk_text_draw
668 if ( !gs_gtk_text_draw )
669 {
670 GtkDrawCallback&
671 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
672
673 gs_gtk_text_draw = draw;
674
675 draw = wxgtk_text_draw;
676 }
677 }
678 #endif // GTK+ 1.x
679
680 if (!value.empty())
681 {
682 #ifdef __WXGTK20__
683 SetValue( value );
684 #else
685
686 #if !GTK_CHECK_VERSION(1, 2, 0)
687 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
688 // gtk_editable_insert_text()
689 gtk_widget_realize(m_text);
690 #endif // GTK 1.0
691
692 gint tmp = 0;
693 #if wxUSE_UNICODE
694 wxWX2MBbuf val = value.mbc_str();
695 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
696 #else
697 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
698 #endif
699
700 if (multi_line)
701 {
702 // Bring editable's cursor uptodate. Bug in GTK.
703 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
704 }
705
706 #endif
707 }
708
709 if (style & wxTE_PASSWORD)
710 {
711 if (!multi_line)
712 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
713 }
714
715 if (style & wxTE_READONLY)
716 {
717 if (!multi_line)
718 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
719 #ifdef __WXGTK20__
720 else
721 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
722 #else
723 }
724 else
725 {
726 if (multi_line)
727 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
728 #endif
729 }
730
731 #ifdef __WXGTK20__
732 if (multi_line)
733 {
734 if (style & wxTE_RIGHT)
735 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
736 else if (style & wxTE_CENTRE)
737 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
738 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
739 }
740 else
741 {
742 #ifdef __WXGTK24__
743 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
744 if (!gtk_check_version(2,4,0))
745 {
746 if (style & wxTE_RIGHT)
747 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
748 else if (style & wxTE_CENTRE)
749 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
750 }
751 #endif
752 }
753 #endif // __WXGTK20__
754
755 // We want to be notified about text changes.
756 #ifdef __WXGTK20__
757 if (multi_line)
758 {
759 g_signal_connect( G_OBJECT(m_buffer), "changed",
760 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
761
762 // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
763 if (style & wxTE_AUTO_URL)
764 {
765 GtkTextIter start, end;
766 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
767 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
768
769 // We create our wxUrl tag here for slight efficiency gain - we
770 // don't have to check for the tag existance in callbacks,
771 // hereby it's guaranteed to exist.
772 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
773 "foreground", "blue",
774 "underline", PANGO_UNDERLINE_SINGLE,
775 NULL);
776
777 // Check for URLs after each text change
778 g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
779 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
780 g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
781 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
782
783 // Block all wxUrl tag applying unless we do it ourselves, in which case we
784 // block this callback temporarily. This takes care of gtk+ internal
785 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
786 // which is undesired because only a part of the URL might be copied.
787 // The insert-text signal emitted inside it will take care of newly formed
788 // or wholly copied URLs.
789 g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
790 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
791
792 // Check for URLs in the initial string passed to Create
793 gtk_text_buffer_get_start_iter(m_buffer, &start);
794 gtk_text_buffer_get_end_iter(m_buffer, &end);
795 au_check_range(&start, &end);
796 }
797 }
798 else
799 #endif
800
801 {
802 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
803 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
804 }
805
806 m_cursor = wxCursor( wxCURSOR_IBEAM );
807
808 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
809 SetDefaultStyle( attrDef );
810
811 return true;
812 }
813
814
815 void wxTextCtrl::CalculateScrollbar()
816 {
817 #ifndef __WXGTK20__
818 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
819
820 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
821
822 if (adj->upper - adj->page_size < 0.8)
823 {
824 if (m_vScrollbarVisible)
825 {
826 gtk_widget_hide( m_vScrollbar );
827 m_vScrollbarVisible = false;
828 }
829 }
830 else
831 {
832 if (!m_vScrollbarVisible)
833 {
834 gtk_widget_show( m_vScrollbar );
835 m_vScrollbarVisible = true;
836 }
837 }
838 #endif
839 }
840
841 wxString wxTextCtrl::GetValue() const
842 {
843 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
844
845 wxString tmp;
846 if (m_windowStyle & wxTE_MULTILINE)
847 {
848 #ifdef __WXGTK20__
849 GtkTextIter start;
850 gtk_text_buffer_get_start_iter( m_buffer, &start );
851 GtkTextIter end;
852 gtk_text_buffer_get_end_iter( m_buffer, &end );
853 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
854
855 #if wxUSE_UNICODE
856 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
857 #else
858 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
859 #endif
860 if ( buffer )
861 tmp = buffer;
862
863 g_free( text );
864 #else
865 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
866 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
867 tmp = text;
868 g_free( text );
869 #endif
870 }
871 else
872 {
873 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
874 }
875
876 return tmp;
877 }
878
879 void wxTextCtrl::SetValue( const wxString &value )
880 {
881 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
882
883 if (m_windowStyle & wxTE_MULTILINE)
884 {
885 #ifdef __WXGTK20__
886
887 #if wxUSE_UNICODE
888 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
889 #else
890 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
891 #endif
892 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
893 IgnoreNextTextUpdate();
894
895 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
896
897 #else
898 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
899 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
900 len = 0;
901 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
902 #endif
903 }
904 else
905 {
906 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
907 }
908
909 // GRG, Jun/2000: Changed this after a lot of discussion in
910 // the lists. wxWidgets 2.2 will have a set of flags to
911 // customize this behaviour.
912 SetInsertionPoint(0);
913
914 m_modified = false;
915 }
916
917 void wxTextCtrl::WriteText( const wxString &text )
918 {
919 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
920
921 if ( text.empty() )
922 return;
923
924 // gtk_text_changed_callback() will set m_modified to true but m_modified
925 // shouldn't be changed by the program writing to the text control itself,
926 // so save the old value and restore when we're done
927 bool oldModified = m_modified;
928
929 if ( m_windowStyle & wxTE_MULTILINE )
930 {
931 #ifdef __WXGTK20__
932
933 #if wxUSE_UNICODE
934 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
935 #else
936 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
937 #endif
938 if ( !buffer )
939 {
940 // what else can we do? at least don't crash...
941 return;
942 }
943
944 // TODO: Call whatever is needed to delete the selection.
945 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
946
947 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
948 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
949 if ( adj->value == adj->upper - adj->page_size )
950 {
951 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
952 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
953 }
954 #else // GTK 1.x
955 // After cursor movements, gtk_text_get_point() is wrong by one.
956 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
957
958 // always use m_defaultStyle, even if it is empty as otherwise
959 // resetting the style and appending some more text wouldn't work: if
960 // we don't specify the style explicitly, the old style would be used
961 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
962 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
963
964 // we called wxGtkTextInsert with correct font, no need to do anything
965 // in UpdateFontIfNeeded() any longer
966 if ( !text.empty() )
967 {
968 SetUpdateFont(false);
969 }
970
971 // Bring editable's cursor back uptodate.
972 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
973 #endif // GTK 1.x/2.0
974 }
975 else // single line
976 {
977 // First remove the selection if there is one
978 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
979
980 // This moves the cursor pos to behind the inserted text.
981 gint len = GET_EDITABLE_POS(m_text);
982
983 #ifdef __WXGTK20__
984
985 #if wxUSE_UNICODE
986 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
987 #else
988 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
989 #endif
990 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
991
992 #else
993 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
994 #endif
995
996 // Bring entry's cursor uptodate.
997 gtk_entry_set_position( GTK_ENTRY(m_text), len );
998 }
999
1000 m_modified = oldModified;
1001 }
1002
1003 void wxTextCtrl::AppendText( const wxString &text )
1004 {
1005 SetInsertionPointEnd();
1006 WriteText( text );
1007 }
1008
1009 wxString wxTextCtrl::GetLineText( long lineNo ) const
1010 {
1011 if (m_windowStyle & wxTE_MULTILINE)
1012 {
1013 #ifndef __WXGTK20__
1014 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1015 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1016
1017 if (text)
1018 {
1019 wxString buf(wxT(""));
1020 long i;
1021 int currentLine = 0;
1022 for (i = 0; currentLine != lineNo && text[i]; i++ )
1023 if (text[i] == '\n')
1024 currentLine++;
1025 // Now get the text
1026 int j;
1027 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1028 buf += text[i];
1029
1030 g_free( text );
1031 return buf;
1032 }
1033 else
1034 {
1035 return wxEmptyString;
1036 }
1037 #else
1038 GtkTextIter line;
1039 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1040 GtkTextIter end;
1041 gtk_text_buffer_get_end_iter(m_buffer,&end );
1042 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1043 wxString result(wxGTK_CONV_BACK(text));
1044 g_free(text);
1045 return result.BeforeFirst(wxT('\n'));
1046 #endif
1047 }
1048 else
1049 {
1050 if (lineNo == 0) return GetValue();
1051 return wxEmptyString;
1052 }
1053 }
1054
1055 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1056 {
1057 /* If you implement this, don't forget to update the documentation!
1058 * (file docs/latex/wx/text.tex) */
1059 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1060 }
1061
1062 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1063 {
1064 if ( m_windowStyle & wxTE_MULTILINE )
1065 {
1066 wxString text = GetValue();
1067
1068 // cast to prevent warning. But pos really should've been unsigned.
1069 if( (unsigned long)pos > text.Len() )
1070 return false;
1071
1072 *x=0; // First Col
1073 *y=0; // First Line
1074
1075 const wxChar* stop = text.c_str() + pos;
1076 for ( const wxChar *p = text.c_str(); p < stop; p++ )
1077 {
1078 if (*p == wxT('\n'))
1079 {
1080 (*y)++;
1081 *x=0;
1082 }
1083 else
1084 (*x)++;
1085 }
1086 }
1087 else // single line control
1088 {
1089 if ( pos <= GTK_ENTRY(m_text)->text_length )
1090 {
1091 *y = 0;
1092 *x = pos;
1093 }
1094 else
1095 {
1096 // index out of bounds
1097 return false;
1098 }
1099 }
1100
1101 return true;
1102 }
1103
1104 long wxTextCtrl::XYToPosition(long x, long y ) const
1105 {
1106 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1107
1108 long pos=0;
1109 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1110
1111 pos += x;
1112 return pos;
1113 }
1114
1115 int wxTextCtrl::GetLineLength(long lineNo) const
1116 {
1117 wxString str = GetLineText (lineNo);
1118 return (int) str.Length();
1119 }
1120
1121 int wxTextCtrl::GetNumberOfLines() const
1122 {
1123 if (m_windowStyle & wxTE_MULTILINE)
1124 {
1125 #ifdef __WXGTK20__
1126 return gtk_text_buffer_get_line_count( m_buffer );
1127 #else
1128 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1129 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1130
1131 if (text)
1132 {
1133 int currentLine = 0;
1134 for (int i = 0; i < len; i++ )
1135 {
1136 if (text[i] == '\n')
1137 currentLine++;
1138 }
1139 g_free( text );
1140
1141 // currentLine is 0 based, add 1 to get number of lines
1142 return currentLine + 1;
1143 }
1144 else
1145 {
1146 return 0;
1147 }
1148 #endif
1149 }
1150 else
1151 {
1152 return 1;
1153 }
1154 }
1155
1156 void wxTextCtrl::SetInsertionPoint( long pos )
1157 {
1158 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1159
1160 if ( IsMultiLine() )
1161 {
1162 #ifdef __WXGTK20__
1163 GtkTextIter iter;
1164 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1165 gtk_text_buffer_place_cursor( m_buffer, &iter );
1166 gtk_text_view_scroll_mark_onscreen
1167 (
1168 GTK_TEXT_VIEW(m_text),
1169 gtk_text_buffer_get_insert( m_buffer )
1170 );
1171 #else // GTK+ 1.x
1172 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1173 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1174
1175 /* we fake a set_point by inserting and deleting. as the user
1176 isn't supposed to get to know about this non-sense, we
1177 disconnect so that no events are sent to the user program. */
1178
1179 gint tmp = (gint)pos;
1180 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1181 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1182
1183 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1184 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1185
1186 // bring editable's cursor uptodate. Bug in GTK.
1187 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1188 #endif // GTK+ 2/1
1189 }
1190 else
1191 {
1192 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1193
1194 // Bring editable's cursor uptodate. Bug in GTK.
1195 SET_EDITABLE_POS(m_text, (guint32)pos);
1196 }
1197 }
1198
1199 void wxTextCtrl::SetInsertionPointEnd()
1200 {
1201 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1202
1203 if (m_windowStyle & wxTE_MULTILINE)
1204 {
1205 #ifdef __WXGTK20__
1206 GtkTextIter end;
1207 gtk_text_buffer_get_end_iter( m_buffer, &end );
1208 gtk_text_buffer_place_cursor( m_buffer, &end );
1209 #else
1210 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1211 #endif
1212 }
1213 else
1214 {
1215 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1216 }
1217 }
1218
1219 void wxTextCtrl::SetEditable( bool editable )
1220 {
1221 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1222
1223 if (m_windowStyle & wxTE_MULTILINE)
1224 {
1225 #ifdef __WXGTK20__
1226 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1227 #else
1228 gtk_text_set_editable( GTK_TEXT(m_text), editable );
1229 #endif
1230 }
1231 else
1232 {
1233 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1234 }
1235 }
1236
1237 bool wxTextCtrl::Enable( bool enable )
1238 {
1239 if (!wxWindowBase::Enable(enable))
1240 {
1241 // nothing to do
1242 return false;
1243 }
1244
1245 if (m_windowStyle & wxTE_MULTILINE)
1246 {
1247 #ifdef __WXGTK20__
1248 SetEditable( enable );
1249 #else
1250 gtk_text_set_editable( GTK_TEXT(m_text), enable );
1251 OnParentEnable(enable);
1252 #endif
1253 }
1254 else
1255 {
1256 gtk_widget_set_sensitive( m_text, enable );
1257 }
1258
1259 return true;
1260 }
1261
1262 // wxGTK-specific: called recursively by Enable,
1263 // to give widgets an oppprtunity to correct their colours after they
1264 // have been changed by Enable
1265 void wxTextCtrl::OnParentEnable( bool enable )
1266 {
1267 // If we have a custom background colour, we use this colour in both
1268 // disabled and enabled mode, or we end up with a different colour under the
1269 // text.
1270 wxColour oldColour = GetBackgroundColour();
1271 if (oldColour.Ok())
1272 {
1273 // Need to set twice or it'll optimize the useful stuff out
1274 if (oldColour == * wxWHITE)
1275 SetBackgroundColour(*wxBLACK);
1276 else
1277 SetBackgroundColour(*wxWHITE);
1278 SetBackgroundColour(oldColour);
1279 }
1280 }
1281
1282 void wxTextCtrl::MarkDirty()
1283 {
1284 m_modified = true;
1285 }
1286
1287 void wxTextCtrl::DiscardEdits()
1288 {
1289 m_modified = false;
1290 }
1291
1292 // ----------------------------------------------------------------------------
1293 // max text length support
1294 // ----------------------------------------------------------------------------
1295
1296 void wxTextCtrl::IgnoreNextTextUpdate()
1297 {
1298 m_ignoreNextUpdate = true;
1299 }
1300
1301 bool wxTextCtrl::IgnoreTextUpdate()
1302 {
1303 if ( m_ignoreNextUpdate )
1304 {
1305 m_ignoreNextUpdate = false;
1306
1307 return true;
1308 }
1309
1310 return false;
1311 }
1312
1313 void wxTextCtrl::SetMaxLength(unsigned long len)
1314 {
1315 if ( !HasFlag(wxTE_MULTILINE) )
1316 {
1317 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1318
1319 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1320 // we had tried to enter more text than allowed by max text length and
1321 // the text wasn't really changed
1322 //
1323 // to detect this and generate TEXT_MAXLEN event instead of
1324 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1325 //
1326 // when max len is set to 0 we disconnect our handler as it means that
1327 // we shouldn't check anything any more
1328 if ( len )
1329 {
1330 gtk_signal_connect( GTK_OBJECT(m_text),
1331 "insert_text",
1332 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1333 (gpointer)this);
1334 }
1335 else // no checking
1336 {
1337 gtk_signal_disconnect_by_func
1338 (
1339 GTK_OBJECT(m_text),
1340 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1341 (gpointer)this
1342 );
1343 }
1344 }
1345 }
1346
1347 void wxTextCtrl::SetSelection( long from, long to )
1348 {
1349 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1350
1351 if (from == -1 && to == -1)
1352 {
1353 from = 0;
1354 to = GetValue().Length();
1355 }
1356
1357 #ifndef __WXGTK20__
1358 if ( (m_windowStyle & wxTE_MULTILINE) &&
1359 !GTK_TEXT(m_text)->line_start_cache )
1360 {
1361 // tell the programmer that it didn't work
1362 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1363 return;
1364 }
1365 #endif
1366
1367 if (m_windowStyle & wxTE_MULTILINE)
1368 {
1369 #ifdef __WXGTK20__
1370 GtkTextIter fromi, toi;
1371 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1372 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1373
1374 gtk_text_buffer_place_cursor( m_buffer, &toi );
1375 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1376 #else
1377 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1378 #endif
1379 }
1380 else
1381 {
1382 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1383 }
1384 }
1385
1386 void wxTextCtrl::ShowPosition( long pos )
1387 {
1388 if (m_windowStyle & wxTE_MULTILINE)
1389 {
1390 #ifdef __WXGTK20__
1391 GtkTextIter iter;
1392 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1393 gtk_text_iter_set_offset( &iter, pos );
1394 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1395 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1396 #else // GTK 1.x
1397 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1398 float totalLines = (float) GetNumberOfLines();
1399 long posX;
1400 long posY;
1401 PositionToXY(pos, &posX, &posY);
1402 float posLine = (float) posY;
1403 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1404 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1405 #endif // GTK 1.x/2.x
1406 }
1407 }
1408
1409 #ifdef __WXGTK20__
1410
1411 wxTextCtrlHitTestResult
1412 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1413 {
1414 if ( !IsMultiLine() )
1415 {
1416 // not supported
1417 return wxTE_HT_UNKNOWN;
1418 }
1419
1420 int x, y;
1421 gtk_text_view_window_to_buffer_coords
1422 (
1423 GTK_TEXT_VIEW(m_text),
1424 GTK_TEXT_WINDOW_TEXT,
1425 pt.x, pt.y,
1426 &x, &y
1427 );
1428
1429 GtkTextIter iter;
1430 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1431 if ( pos )
1432 *pos = gtk_text_iter_get_offset(&iter);
1433
1434 return wxTE_HT_ON_TEXT;
1435 }
1436
1437 #endif // __WXGTK20__
1438
1439 long wxTextCtrl::GetInsertionPoint() const
1440 {
1441 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1442
1443 #ifdef __WXGTK20__
1444 if (m_windowStyle & wxTE_MULTILINE)
1445 {
1446 // There is no direct accessor for the cursor, but
1447 // internally, the cursor is the "mark" called
1448 // "insert" in the text view's btree structure.
1449
1450 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1451 GtkTextIter cursor;
1452 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1453
1454 return gtk_text_iter_get_offset( &cursor );
1455 }
1456 else
1457 #endif
1458 {
1459 return (long) GET_EDITABLE_POS(m_text);
1460 }
1461 }
1462
1463 wxTextPos wxTextCtrl::GetLastPosition() const
1464 {
1465 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1466
1467 int pos = 0;
1468
1469 if (m_windowStyle & wxTE_MULTILINE)
1470 {
1471 #ifdef __WXGTK20__
1472 GtkTextIter end;
1473 gtk_text_buffer_get_end_iter( m_buffer, &end );
1474
1475 pos = gtk_text_iter_get_offset( &end );
1476 #else
1477 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1478 #endif
1479 }
1480 else
1481 {
1482 pos = GTK_ENTRY(m_text)->text_length;
1483 }
1484
1485 return (long)pos;
1486 }
1487
1488 void wxTextCtrl::Remove( long from, long to )
1489 {
1490 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1491
1492 #ifdef __WXGTK20__
1493 if (m_windowStyle & wxTE_MULTILINE)
1494 {
1495 GtkTextIter fromi, toi;
1496 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1497 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1498
1499 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1500 }
1501 else // single line
1502 #endif
1503 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1504 }
1505
1506 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1507 {
1508 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1509
1510 Remove( from, to );
1511
1512 if (!value.empty())
1513 {
1514 #ifdef __WXGTK20__
1515 SetInsertionPoint( from );
1516 WriteText( value );
1517 #else // GTK 1.x
1518 gint pos = (gint)from;
1519 #if wxUSE_UNICODE
1520 wxWX2MBbuf buf = value.mbc_str();
1521 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1522 #else
1523 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1524 #endif // wxUSE_UNICODE
1525 #endif // GTK 1.x/2.x
1526 }
1527 }
1528
1529 void wxTextCtrl::Cut()
1530 {
1531 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1532
1533 #ifdef __WXGTK20__
1534 if (m_windowStyle & wxTE_MULTILINE)
1535 g_signal_emit_by_name(m_text, "cut-clipboard");
1536 else
1537 #endif
1538 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1539 }
1540
1541 void wxTextCtrl::Copy()
1542 {
1543 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1544
1545 #ifdef __WXGTK20__
1546 if (m_windowStyle & wxTE_MULTILINE)
1547 g_signal_emit_by_name(m_text, "copy-clipboard");
1548 else
1549 #endif
1550 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1551 }
1552
1553 void wxTextCtrl::Paste()
1554 {
1555 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1556
1557 #ifdef __WXGTK20__
1558 if (m_windowStyle & wxTE_MULTILINE)
1559 g_signal_emit_by_name(m_text, "paste-clipboard");
1560 else
1561 #endif
1562 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1563 }
1564
1565 // Undo/redo
1566 void wxTextCtrl::Undo()
1567 {
1568 // TODO
1569 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1570 }
1571
1572 void wxTextCtrl::Redo()
1573 {
1574 // TODO
1575 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1576 }
1577
1578 bool wxTextCtrl::CanUndo() const
1579 {
1580 // TODO
1581 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1582 return false;
1583 }
1584
1585 bool wxTextCtrl::CanRedo() const
1586 {
1587 // TODO
1588 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1589 return false;
1590 }
1591
1592 // If the return values from and to are the same, there is no
1593 // selection.
1594 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1595 {
1596 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1597
1598 gint from = -1;
1599 gint to = -1;
1600 bool haveSelection = false;
1601
1602 #ifdef __WXGTK20__
1603 if (m_windowStyle & wxTE_MULTILINE)
1604 {
1605 GtkTextIter ifrom, ito;
1606 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1607 {
1608 haveSelection = true;
1609 from = gtk_text_iter_get_offset(&ifrom);
1610 to = gtk_text_iter_get_offset(&ito);
1611 }
1612 }
1613 else // not multi-line
1614 {
1615 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1616 &from, &to) )
1617 {
1618 haveSelection = true;
1619 }
1620 }
1621 #else // not GTK2
1622 if ( (GTK_EDITABLE(m_text)->has_selection) )
1623 {
1624 haveSelection = true;
1625 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1626 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1627 }
1628 #endif
1629
1630 if (! haveSelection )
1631 from = to = GetInsertionPoint();
1632
1633 if ( from > to )
1634 {
1635 // exchange them to be compatible with wxMSW
1636 gint tmp = from;
1637 from = to;
1638 to = tmp;
1639 }
1640
1641 if ( fromOut )
1642 *fromOut = from;
1643 if ( toOut )
1644 *toOut = to;
1645 }
1646
1647
1648 bool wxTextCtrl::IsEditable() const
1649 {
1650 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1651
1652 #ifdef __WXGTK20__
1653 if (m_windowStyle & wxTE_MULTILINE)
1654 {
1655 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1656 }
1657 else
1658 {
1659 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1660 }
1661 #else
1662 return GTK_EDITABLE(m_text)->editable;
1663 #endif
1664 }
1665
1666 bool wxTextCtrl::IsModified() const
1667 {
1668 return m_modified;
1669 }
1670
1671 void wxTextCtrl::Clear()
1672 {
1673 SetValue( wxT("") );
1674 }
1675
1676 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1677 {
1678 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1679
1680 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1681 {
1682 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1683 event.SetEventObject(this);
1684 event.SetString(GetValue());
1685 if (GetEventHandler()->ProcessEvent(event)) return;
1686 }
1687
1688 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1689 {
1690 // This will invoke the dialog default action, such
1691 // as the clicking the default button.
1692
1693 wxWindow *top_frame = m_parent;
1694 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1695 top_frame = top_frame->GetParent();
1696
1697 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1698 {
1699 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1700
1701 if (window->default_widget)
1702 {
1703 gtk_widget_activate (window->default_widget);
1704 return;
1705 }
1706 }
1707 }
1708
1709 key_event.Skip();
1710 }
1711
1712 GtkWidget* wxTextCtrl::GetConnectWidget()
1713 {
1714 return GTK_WIDGET(m_text);
1715 }
1716
1717 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1718 {
1719 if (m_windowStyle & wxTE_MULTILINE)
1720 {
1721 #ifdef __WXGTK20__
1722 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1723 #else
1724 return (window == GTK_TEXT(m_text)->text_area);
1725 #endif
1726 }
1727 else
1728 {
1729 return (window == GTK_ENTRY(m_text)->text_area);
1730 }
1731 }
1732
1733 // the font will change for subsequent text insertiongs
1734 bool wxTextCtrl::SetFont( const wxFont &font )
1735 {
1736 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1737
1738 if ( !wxTextCtrlBase::SetFont(font) )
1739 {
1740 // font didn't change, nothing to do
1741 return false;
1742 }
1743
1744 if ( m_windowStyle & wxTE_MULTILINE )
1745 {
1746 SetUpdateFont(true);
1747
1748 m_defaultStyle.SetFont(font);
1749
1750 ChangeFontGlobally();
1751 }
1752
1753 return true;
1754 }
1755
1756 void wxTextCtrl::ChangeFontGlobally()
1757 {
1758 // this method is very inefficient and hence should be called as rarely as
1759 // possible!
1760 //
1761 // TODO: it can be implemented much more efficiently for GTK2
1762 #ifndef __WXGTK20__
1763 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1764
1765 _T("shouldn't be called for single line controls") );
1766 #else
1767 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1768 _T("shouldn't be called for single line controls") );
1769 #endif
1770
1771 wxString value = GetValue();
1772 if ( !value.empty() )
1773 {
1774 SetUpdateFont(false);
1775
1776 Clear();
1777 AppendText(value);
1778 }
1779 }
1780
1781 #ifndef __WXGTK20__
1782
1783 void wxTextCtrl::UpdateFontIfNeeded()
1784 {
1785 if ( m_updateFont )
1786 ChangeFontGlobally();
1787 }
1788
1789 #endif // GTK+ 1.x
1790
1791 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1792 {
1793 if ( !wxControl::SetForegroundColour(colour) )
1794 return false;
1795
1796 // update default fg colour too
1797 m_defaultStyle.SetTextColour(colour);
1798
1799 return true;
1800 }
1801
1802 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1803 {
1804 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1805
1806 if ( !wxControl::SetBackgroundColour( colour ) )
1807 return false;
1808
1809 #ifndef __WXGTK20__
1810 if (!m_widget->window)
1811 return false;
1812 #endif
1813
1814 if (!m_backgroundColour.Ok())
1815 return false;
1816
1817 if (m_windowStyle & wxTE_MULTILINE)
1818 {
1819 #ifndef __WXGTK20__
1820 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1821 if (!window)
1822 return false;
1823 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1824 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1825 gdk_window_clear( window );
1826 #endif
1827 }
1828
1829 // change active background color too
1830 m_defaultStyle.SetBackgroundColour( colour );
1831
1832 return true;
1833 }
1834
1835 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1836 {
1837 if ( m_windowStyle & wxTE_MULTILINE )
1838 {
1839 if ( style.IsDefault() )
1840 {
1841 // nothing to do
1842 return true;
1843 }
1844 #ifdef __WXGTK20__
1845 gint l = gtk_text_buffer_get_char_count( m_buffer );
1846
1847 wxCHECK_MSG( start >= 0 && end <= l, false,
1848 _T("invalid range in wxTextCtrl::SetStyle") );
1849
1850 GtkTextIter starti, endi;
1851 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1852 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1853
1854 // use the attributes from style which are set in it and fall back
1855 // first to the default style and then to the text control default
1856 // colours for the others
1857 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1858
1859 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1860
1861 return true;
1862 #else
1863 // VERY dirty way to do that - removes the required text and re-adds it
1864 // with styling (FIXME)
1865
1866 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1867
1868 wxCHECK_MSG( start >= 0 && end <= l, false,
1869 _T("invalid range in wxTextCtrl::SetStyle") );
1870
1871 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1872 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1873 wxString tmp(text,*wxConvCurrent);
1874 g_free( text );
1875
1876 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1877 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1878
1879 #if wxUSE_UNICODE
1880 wxWX2MBbuf buf = tmp.mbc_str();
1881 const char *txt = buf;
1882 size_t txtlen = strlen(buf);
1883 #else
1884 const char *txt = tmp;
1885 size_t txtlen = tmp.length();
1886 #endif
1887
1888 // use the attributes from style which are set in it and fall back
1889 // first to the default style and then to the text control default
1890 // colours for the others
1891 wxGtkTextInsert(m_text,
1892 wxTextAttr::Combine(style, m_defaultStyle, this),
1893 txt,
1894 txtlen);
1895
1896 /* does not seem to help under GTK+ 1.2 !!!
1897 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1898 SetInsertionPoint( old_pos );
1899 #endif
1900 return true;
1901 }
1902 else // singe line
1903 {
1904 // cannot do this for GTK+'s Entry widget
1905 return false;
1906 }
1907 }
1908
1909 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1910 {
1911 gtk_widget_modify_style(m_text, style);
1912 }
1913
1914 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1915 {
1916 Cut();
1917 }
1918
1919 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1920 {
1921 Copy();
1922 }
1923
1924 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1925 {
1926 Paste();
1927 }
1928
1929 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1930 {
1931 Undo();
1932 }
1933
1934 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1935 {
1936 Redo();
1937 }
1938
1939 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1940 {
1941 event.Enable( CanCut() );
1942 }
1943
1944 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1945 {
1946 event.Enable( CanCopy() );
1947 }
1948
1949 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1950 {
1951 event.Enable( CanPaste() );
1952 }
1953
1954 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1955 {
1956 event.Enable( CanUndo() );
1957 }
1958
1959 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1960 {
1961 event.Enable( CanRedo() );
1962 }
1963
1964 void wxTextCtrl::OnInternalIdle()
1965 {
1966 wxCursor cursor = m_cursor;
1967 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1968
1969 if (cursor.Ok())
1970 {
1971 #ifndef __WXGTK20__
1972 GdkWindow *window = (GdkWindow*) NULL;
1973 if (HasFlag(wxTE_MULTILINE))
1974 window = GTK_TEXT(m_text)->text_area;
1975 else
1976 window = GTK_ENTRY(m_text)->text_area;
1977
1978 if (window)
1979 gdk_window_set_cursor( window, cursor.GetCursor() );
1980
1981 if (!g_globalCursor.Ok())
1982 cursor = *wxSTANDARD_CURSOR;
1983
1984 window = m_widget->window;
1985 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1986 gdk_window_set_cursor( window, cursor.GetCursor() );
1987 #endif
1988 }
1989
1990 if (g_delayedFocus == this)
1991 {
1992 if (GTK_WIDGET_REALIZED(m_widget))
1993 {
1994 gtk_widget_grab_focus( m_widget );
1995 g_delayedFocus = NULL;
1996 }
1997 }
1998
1999 if (wxUpdateUIEvent::CanUpdate(this))
2000 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2001 }
2002
2003 wxSize wxTextCtrl::DoGetBestSize() const
2004 {
2005 // FIXME should be different for multi-line controls...
2006 wxSize ret( wxControl::DoGetBestSize() );
2007 wxSize best(80, ret.y);
2008 CacheBestSize(best);
2009 return best;
2010 }
2011
2012 // ----------------------------------------------------------------------------
2013 // freeze/thaw
2014 // ----------------------------------------------------------------------------
2015
2016 void wxTextCtrl::Freeze()
2017 {
2018 if ( HasFlag(wxTE_MULTILINE) )
2019 {
2020 #ifdef __WXGTK20__
2021 if ( !m_frozenness++ )
2022 {
2023 // freeze textview updates and remove buffer
2024 g_signal_connect( G_OBJECT(m_text), "expose_event",
2025 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2026 g_signal_connect( G_OBJECT(m_widget), "expose_event",
2027 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2028 gtk_widget_set_sensitive(m_widget, false);
2029 g_object_ref(m_buffer);
2030 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2031 }
2032 #else
2033 gtk_text_freeze(GTK_TEXT(m_text));
2034 #endif
2035 }
2036 }
2037
2038 void wxTextCtrl::Thaw()
2039 {
2040 if ( HasFlag(wxTE_MULTILINE) )
2041 {
2042 #ifdef __WXGTK20__
2043 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2044
2045 if ( !--m_frozenness )
2046 {
2047 // Reattach buffer and thaw textview updates
2048 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2049 g_object_unref(m_buffer);
2050 gtk_widget_set_sensitive(m_widget, true);
2051 g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2052 g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2053 }
2054 #else
2055 GTK_TEXT(m_text)->vadj->value = 0.0;
2056
2057 gtk_text_thaw(GTK_TEXT(m_text));
2058 #endif
2059 }
2060 }
2061
2062 // ----------------------------------------------------------------------------
2063 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2064 // ----------------------------------------------------------------------------
2065
2066 #ifdef __WXGTK20__
2067
2068 // FIXME: when dragging on a link the sample gets an "Unknown event".
2069 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2070 // a buggy sample, or something else
2071 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2072 {
2073 event.Skip();
2074 if(!(m_windowStyle & wxTE_AUTO_URL))
2075 return;
2076
2077 gint x, y;
2078 GtkTextIter start, end;
2079 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2080 "wxUrl");
2081
2082 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2083 event.GetX(), event.GetY(), &x, &y);
2084
2085 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2086 if (!gtk_text_iter_has_tag(&end, tag))
2087 {
2088 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2089 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2090 return;
2091 }
2092
2093 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2094 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2095
2096 start = end;
2097 if(!gtk_text_iter_begins_tag(&start, tag))
2098 gtk_text_iter_backward_to_tag_toggle(&start, tag);
2099 if(!gtk_text_iter_ends_tag(&end, tag))
2100 gtk_text_iter_forward_to_tag_toggle(&end, tag);
2101
2102 // Native context menu is probably not desired on an URL.
2103 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2104 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2105 event.Skip(false);
2106
2107 wxTextUrlEvent url_event(m_windowId, event,
2108 gtk_text_iter_get_offset(&start),
2109 gtk_text_iter_get_offset(&end));
2110
2111 InitCommandEvent(url_event);
2112 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2113 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2114 GetEventHandler()->ProcessEvent(url_event);
2115 }
2116 #endif // gtk2
2117
2118 // ----------------------------------------------------------------------------
2119 // scrolling
2120 // ----------------------------------------------------------------------------
2121
2122 GtkAdjustment *wxTextCtrl::GetVAdj() const
2123 {
2124 if ( !IsMultiLine() )
2125 return NULL;
2126
2127 #ifdef __WXGTK20__
2128 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2129 #else
2130 return GTK_TEXT(m_text)->vadj;
2131 #endif
2132 }
2133
2134 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2135 {
2136 float value = adj->value + diff;
2137
2138 if ( value < 0 )
2139 value = 0;
2140
2141 float upper = adj->upper - adj->page_size;
2142 if ( value > upper )
2143 value = upper;
2144
2145 // did we noticeably change the scroll position?
2146 if ( fabs(adj->value - value) < 0.2 )
2147 {
2148 // well, this is what Robert does in wxScrollBar, so it must be good...
2149 return false;
2150 }
2151
2152 adj->value = value;
2153
2154 #ifdef __WXGTK20__
2155 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2156 #else
2157 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2158 #endif
2159
2160 return true;
2161 }
2162
2163 bool wxTextCtrl::ScrollLines(int lines)
2164 {
2165 GtkAdjustment *adj = GetVAdj();
2166 if ( !adj )
2167 return false;
2168
2169 #ifdef __WXGTK20__
2170 int diff = (int)ceil(lines*adj->step_increment);
2171 #else
2172 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2173 int diff = 10*lines;
2174 #endif
2175
2176 return DoScroll(adj, diff);
2177 }
2178
2179 bool wxTextCtrl::ScrollPages(int pages)
2180 {
2181 GtkAdjustment *adj = GetVAdj();
2182 if ( !adj )
2183 return false;
2184
2185 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2186 }
2187
2188
2189 // static
2190 wxVisualAttributes
2191 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2192 {
2193 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2194 }
wxWidgets (Impactor)