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[wxWidgets.git] / src / gtk / 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 GtkWrapMode wrap;
602 if ( HasFlag( wxTE_DONTWRAP ) )
603 wrap = GTK_WRAP_NONE;
604 else if ( HasFlag( wxTE_CHARWRAP ) )
605 wrap = GTK_WRAP_CHAR;
606 else if ( HasFlag( wxTE_WORDWRAP ) )
607 wrap = GTK_WRAP_WORD;
608 else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
609 {
610 // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
611 #ifdef __WXGTK24__
612 if ( !gtk_check_version(2,4,0) )
613 {
614 wrap = GTK_WRAP_WORD_CHAR;
615 }
616 else
617 #else
618 wrap = GTK_WRAP_WORD;
619 #endif
620 }
621
622 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
623
624 if (!HasFlag(wxNO_BORDER))
625 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
626
627 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
628
629 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
630 #else // GTK+ 1
631 // create our control ...
632 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
633
634 // ... and put into the upper left hand corner of the table
635 bool bHasHScrollbar = false;
636 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
637 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
638 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
639 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
640 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
641 0, 0);
642
643 // always wrap words
644 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
645
646 // finally, put the vertical scrollbar in the upper right corner
647 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
648 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
649 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
650 GTK_FILL,
651 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
652 0, 0);
653 #endif // GTK+ 2/1
654 }
655 else
656 {
657 // a single-line text control: no need for scrollbars
658 m_widget =
659 m_text = gtk_entry_new();
660
661 #ifdef __WXGTK20__
662 if (style & wxNO_BORDER)
663 g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
664 #endif
665 }
666
667 m_parent->DoAddChild( this );
668
669 m_focusWidget = m_text;
670
671 PostCreation(size);
672
673 if (multi_line)
674 gtk_widget_show(m_text);
675
676 #ifndef __WXGTK20__
677 if (multi_line)
678 {
679 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
680 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
681
682 // only initialize gs_gtk_text_draw once, starting from the next the
683 // klass::draw will already be wxgtk_text_draw
684 if ( !gs_gtk_text_draw )
685 {
686 GtkDrawCallback&
687 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
688
689 gs_gtk_text_draw = draw;
690
691 draw = wxgtk_text_draw;
692 }
693 }
694 #endif // GTK+ 1.x
695
696 if (!value.empty())
697 {
698 #ifdef __WXGTK20__
699 SetValue( value );
700 #else
701
702 #if !GTK_CHECK_VERSION(1, 2, 0)
703 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
704 // gtk_editable_insert_text()
705 gtk_widget_realize(m_text);
706 #endif // GTK 1.0
707
708 gint tmp = 0;
709 #if wxUSE_UNICODE
710 wxWX2MBbuf val = value.mbc_str();
711 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
712 #else
713 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
714 #endif
715
716 if (multi_line)
717 {
718 // Bring editable's cursor uptodate. Bug in GTK.
719 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
720 }
721
722 #endif
723 }
724
725 if (style & wxTE_PASSWORD)
726 {
727 if (!multi_line)
728 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
729 }
730
731 if (style & wxTE_READONLY)
732 {
733 if (!multi_line)
734 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
735 #ifdef __WXGTK20__
736 else
737 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
738 #else
739 }
740 else
741 {
742 if (multi_line)
743 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
744 #endif
745 }
746
747 #ifdef __WXGTK20__
748 if (multi_line)
749 {
750 if (style & wxTE_RIGHT)
751 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
752 else if (style & wxTE_CENTRE)
753 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
754 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
755 }
756 else
757 {
758 #ifdef __WXGTK24__
759 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
760 if (!gtk_check_version(2,4,0))
761 {
762 if (style & wxTE_RIGHT)
763 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
764 else if (style & wxTE_CENTRE)
765 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
766 }
767 #endif
768 }
769 #endif // __WXGTK20__
770
771 // We want to be notified about text changes.
772 #ifdef __WXGTK20__
773 if (multi_line)
774 {
775 g_signal_connect( G_OBJECT(m_buffer), "changed",
776 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
777
778 // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
779 if (style & wxTE_AUTO_URL)
780 {
781 GtkTextIter start, end;
782 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
783 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
784
785 // We create our wxUrl tag here for slight efficiency gain - we
786 // don't have to check for the tag existance in callbacks,
787 // hereby it's guaranteed to exist.
788 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
789 "foreground", "blue",
790 "underline", PANGO_UNDERLINE_SINGLE,
791 NULL);
792
793 // Check for URLs after each text change
794 g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
795 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
796 g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
797 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
798
799 // Block all wxUrl tag applying unless we do it ourselves, in which case we
800 // block this callback temporarily. This takes care of gtk+ internal
801 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
802 // which is undesired because only a part of the URL might be copied.
803 // The insert-text signal emitted inside it will take care of newly formed
804 // or wholly copied URLs.
805 g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
806 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
807
808 // Check for URLs in the initial string passed to Create
809 gtk_text_buffer_get_start_iter(m_buffer, &start);
810 gtk_text_buffer_get_end_iter(m_buffer, &end);
811 au_check_range(&start, &end);
812 }
813 }
814 else
815 #endif
816
817 {
818 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
819 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
820 }
821
822 m_cursor = wxCursor( wxCURSOR_IBEAM );
823
824 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
825 SetDefaultStyle( attrDef );
826
827 return true;
828 }
829
830
831 void wxTextCtrl::CalculateScrollbar()
832 {
833 #ifndef __WXGTK20__
834 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
835
836 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
837
838 if (adj->upper - adj->page_size < 0.8)
839 {
840 if (m_vScrollbarVisible)
841 {
842 gtk_widget_hide( m_vScrollbar );
843 m_vScrollbarVisible = false;
844 }
845 }
846 else
847 {
848 if (!m_vScrollbarVisible)
849 {
850 gtk_widget_show( m_vScrollbar );
851 m_vScrollbarVisible = true;
852 }
853 }
854 #endif
855 }
856
857 wxString wxTextCtrl::GetValue() const
858 {
859 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
860
861 wxString tmp;
862 if (m_windowStyle & wxTE_MULTILINE)
863 {
864 #ifdef __WXGTK20__
865 GtkTextIter start;
866 gtk_text_buffer_get_start_iter( m_buffer, &start );
867 GtkTextIter end;
868 gtk_text_buffer_get_end_iter( m_buffer, &end );
869 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
870
871 #if wxUSE_UNICODE
872 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
873 #else
874 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
875 #endif
876 if ( buffer )
877 tmp = buffer;
878
879 g_free( text );
880 #else
881 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
882 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
883 tmp = text;
884 g_free( text );
885 #endif
886 }
887 else
888 {
889 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
890 }
891
892 return tmp;
893 }
894
895 void wxTextCtrl::SetValue( const wxString &value )
896 {
897 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
898
899 if (m_windowStyle & wxTE_MULTILINE)
900 {
901 #ifdef __WXGTK20__
902
903 #if wxUSE_UNICODE
904 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
905 #else
906 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
907 #endif
908 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
909 IgnoreNextTextUpdate();
910
911 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
912
913 #else
914 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
915 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
916 len = 0;
917 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
918 #endif
919 }
920 else
921 {
922 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
923 }
924
925 // GRG, Jun/2000: Changed this after a lot of discussion in
926 // the lists. wxWidgets 2.2 will have a set of flags to
927 // customize this behaviour.
928 SetInsertionPoint(0);
929
930 m_modified = false;
931 }
932
933 void wxTextCtrl::WriteText( const wxString &text )
934 {
935 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
936
937 if ( text.empty() )
938 return;
939
940 // gtk_text_changed_callback() will set m_modified to true but m_modified
941 // shouldn't be changed by the program writing to the text control itself,
942 // so save the old value and restore when we're done
943 bool oldModified = m_modified;
944
945 if ( m_windowStyle & wxTE_MULTILINE )
946 {
947 #ifdef __WXGTK20__
948
949 #if wxUSE_UNICODE
950 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
951 #else
952 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
953 #endif
954 if ( !buffer )
955 {
956 // what else can we do? at least don't crash...
957 return;
958 }
959
960 // TODO: Call whatever is needed to delete the selection.
961 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
962
963 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
964 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
965 if ( adj->value == adj->upper - adj->page_size )
966 {
967 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
968 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
969 }
970 #else // GTK 1.x
971 // After cursor movements, gtk_text_get_point() is wrong by one.
972 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
973
974 // always use m_defaultStyle, even if it is empty as otherwise
975 // resetting the style and appending some more text wouldn't work: if
976 // we don't specify the style explicitly, the old style would be used
977 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
978 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
979
980 // we called wxGtkTextInsert with correct font, no need to do anything
981 // in UpdateFontIfNeeded() any longer
982 if ( !text.empty() )
983 {
984 SetUpdateFont(false);
985 }
986
987 // Bring editable's cursor back uptodate.
988 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
989 #endif // GTK 1.x/2.0
990 }
991 else // single line
992 {
993 // First remove the selection if there is one
994 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
995
996 // This moves the cursor pos to behind the inserted text.
997 gint len = GET_EDITABLE_POS(m_text);
998
999 #ifdef __WXGTK20__
1000
1001 #if wxUSE_UNICODE
1002 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1003 #else
1004 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1005 #endif
1006 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1007
1008 #else
1009 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1010 #endif
1011
1012 // Bring entry's cursor uptodate.
1013 gtk_entry_set_position( GTK_ENTRY(m_text), len );
1014 }
1015
1016 m_modified = oldModified;
1017 }
1018
1019 void wxTextCtrl::AppendText( const wxString &text )
1020 {
1021 SetInsertionPointEnd();
1022 WriteText( text );
1023 }
1024
1025 wxString wxTextCtrl::GetLineText( long lineNo ) const
1026 {
1027 if (m_windowStyle & wxTE_MULTILINE)
1028 {
1029 #ifndef __WXGTK20__
1030 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1031 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1032
1033 if (text)
1034 {
1035 wxString buf(wxT(""));
1036 long i;
1037 int currentLine = 0;
1038 for (i = 0; currentLine != lineNo && text[i]; i++ )
1039 if (text[i] == '\n')
1040 currentLine++;
1041 // Now get the text
1042 int j;
1043 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1044 buf += text[i];
1045
1046 g_free( text );
1047 return buf;
1048 }
1049 else
1050 {
1051 return wxEmptyString;
1052 }
1053 #else
1054 GtkTextIter line;
1055 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1056 GtkTextIter end;
1057 gtk_text_buffer_get_end_iter(m_buffer,&end );
1058 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1059 wxString result(wxGTK_CONV_BACK(text));
1060 g_free(text);
1061 return result.BeforeFirst(wxT('\n'));
1062 #endif
1063 }
1064 else
1065 {
1066 if (lineNo == 0) return GetValue();
1067 return wxEmptyString;
1068 }
1069 }
1070
1071 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1072 {
1073 /* If you implement this, don't forget to update the documentation!
1074 * (file docs/latex/wx/text.tex) */
1075 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1076 }
1077
1078 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1079 {
1080 if ( m_windowStyle & wxTE_MULTILINE )
1081 {
1082 wxString text = GetValue();
1083
1084 // cast to prevent warning. But pos really should've been unsigned.
1085 if( (unsigned long)pos > text.Len() )
1086 return false;
1087
1088 *x=0; // First Col
1089 *y=0; // First Line
1090
1091 const wxChar* stop = text.c_str() + pos;
1092 for ( const wxChar *p = text.c_str(); p < stop; p++ )
1093 {
1094 if (*p == wxT('\n'))
1095 {
1096 (*y)++;
1097 *x=0;
1098 }
1099 else
1100 (*x)++;
1101 }
1102 }
1103 else // single line control
1104 {
1105 if ( pos <= GTK_ENTRY(m_text)->text_length )
1106 {
1107 *y = 0;
1108 *x = pos;
1109 }
1110 else
1111 {
1112 // index out of bounds
1113 return false;
1114 }
1115 }
1116
1117 return true;
1118 }
1119
1120 long wxTextCtrl::XYToPosition(long x, long y ) const
1121 {
1122 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1123
1124 long pos=0;
1125 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1126
1127 pos += x;
1128 return pos;
1129 }
1130
1131 int wxTextCtrl::GetLineLength(long lineNo) const
1132 {
1133 wxString str = GetLineText (lineNo);
1134 return (int) str.Length();
1135 }
1136
1137 int wxTextCtrl::GetNumberOfLines() const
1138 {
1139 if (m_windowStyle & wxTE_MULTILINE)
1140 {
1141 #ifdef __WXGTK20__
1142 return gtk_text_buffer_get_line_count( m_buffer );
1143 #else
1144 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1145 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1146
1147 if (text)
1148 {
1149 int currentLine = 0;
1150 for (int i = 0; i < len; i++ )
1151 {
1152 if (text[i] == '\n')
1153 currentLine++;
1154 }
1155 g_free( text );
1156
1157 // currentLine is 0 based, add 1 to get number of lines
1158 return currentLine + 1;
1159 }
1160 else
1161 {
1162 return 0;
1163 }
1164 #endif
1165 }
1166 else
1167 {
1168 return 1;
1169 }
1170 }
1171
1172 void wxTextCtrl::SetInsertionPoint( long pos )
1173 {
1174 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1175
1176 if ( IsMultiLine() )
1177 {
1178 #ifdef __WXGTK20__
1179 GtkTextIter iter;
1180 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1181 gtk_text_buffer_place_cursor( m_buffer, &iter );
1182 gtk_text_view_scroll_mark_onscreen
1183 (
1184 GTK_TEXT_VIEW(m_text),
1185 gtk_text_buffer_get_insert( m_buffer )
1186 );
1187 #else // GTK+ 1.x
1188 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1189 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1190
1191 /* we fake a set_point by inserting and deleting. as the user
1192 isn't supposed to get to know about this non-sense, we
1193 disconnect so that no events are sent to the user program. */
1194
1195 gint tmp = (gint)pos;
1196 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1197 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1198
1199 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1200 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1201
1202 // bring editable's cursor uptodate. Bug in GTK.
1203 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1204 #endif // GTK+ 2/1
1205 }
1206 else
1207 {
1208 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1209
1210 // Bring editable's cursor uptodate. Bug in GTK.
1211 SET_EDITABLE_POS(m_text, (guint32)pos);
1212 }
1213 }
1214
1215 void wxTextCtrl::SetInsertionPointEnd()
1216 {
1217 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1218
1219 if (m_windowStyle & wxTE_MULTILINE)
1220 {
1221 #ifdef __WXGTK20__
1222 GtkTextIter end;
1223 gtk_text_buffer_get_end_iter( m_buffer, &end );
1224 gtk_text_buffer_place_cursor( m_buffer, &end );
1225 #else
1226 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1227 #endif
1228 }
1229 else
1230 {
1231 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1232 }
1233 }
1234
1235 void wxTextCtrl::SetEditable( bool editable )
1236 {
1237 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1238
1239 if (m_windowStyle & wxTE_MULTILINE)
1240 {
1241 #ifdef __WXGTK20__
1242 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1243 #else
1244 gtk_text_set_editable( GTK_TEXT(m_text), editable );
1245 #endif
1246 }
1247 else
1248 {
1249 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1250 }
1251 }
1252
1253 bool wxTextCtrl::Enable( bool enable )
1254 {
1255 if (!wxWindowBase::Enable(enable))
1256 {
1257 // nothing to do
1258 return false;
1259 }
1260
1261 if (m_windowStyle & wxTE_MULTILINE)
1262 {
1263 #ifdef __WXGTK20__
1264 SetEditable( enable );
1265 #else
1266 gtk_text_set_editable( GTK_TEXT(m_text), enable );
1267 OnParentEnable(enable);
1268 #endif
1269 }
1270 else
1271 {
1272 gtk_widget_set_sensitive( m_text, enable );
1273 }
1274
1275 return true;
1276 }
1277
1278 // wxGTK-specific: called recursively by Enable,
1279 // to give widgets an oppprtunity to correct their colours after they
1280 // have been changed by Enable
1281 void wxTextCtrl::OnParentEnable( bool enable )
1282 {
1283 // If we have a custom background colour, we use this colour in both
1284 // disabled and enabled mode, or we end up with a different colour under the
1285 // text.
1286 wxColour oldColour = GetBackgroundColour();
1287 if (oldColour.Ok())
1288 {
1289 // Need to set twice or it'll optimize the useful stuff out
1290 if (oldColour == * wxWHITE)
1291 SetBackgroundColour(*wxBLACK);
1292 else
1293 SetBackgroundColour(*wxWHITE);
1294 SetBackgroundColour(oldColour);
1295 }
1296 }
1297
1298 void wxTextCtrl::MarkDirty()
1299 {
1300 m_modified = true;
1301 }
1302
1303 void wxTextCtrl::DiscardEdits()
1304 {
1305 m_modified = false;
1306 }
1307
1308 // ----------------------------------------------------------------------------
1309 // max text length support
1310 // ----------------------------------------------------------------------------
1311
1312 void wxTextCtrl::IgnoreNextTextUpdate()
1313 {
1314 m_ignoreNextUpdate = true;
1315 }
1316
1317 bool wxTextCtrl::IgnoreTextUpdate()
1318 {
1319 if ( m_ignoreNextUpdate )
1320 {
1321 m_ignoreNextUpdate = false;
1322
1323 return true;
1324 }
1325
1326 return false;
1327 }
1328
1329 void wxTextCtrl::SetMaxLength(unsigned long len)
1330 {
1331 if ( !HasFlag(wxTE_MULTILINE) )
1332 {
1333 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1334
1335 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1336 // we had tried to enter more text than allowed by max text length and
1337 // the text wasn't really changed
1338 //
1339 // to detect this and generate TEXT_MAXLEN event instead of
1340 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1341 //
1342 // when max len is set to 0 we disconnect our handler as it means that
1343 // we shouldn't check anything any more
1344 if ( len )
1345 {
1346 gtk_signal_connect( GTK_OBJECT(m_text),
1347 "insert_text",
1348 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1349 (gpointer)this);
1350 }
1351 else // no checking
1352 {
1353 gtk_signal_disconnect_by_func
1354 (
1355 GTK_OBJECT(m_text),
1356 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1357 (gpointer)this
1358 );
1359 }
1360 }
1361 }
1362
1363 void wxTextCtrl::SetSelection( long from, long to )
1364 {
1365 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1366
1367 if (from == -1 && to == -1)
1368 {
1369 from = 0;
1370 to = GetValue().Length();
1371 }
1372
1373 #ifndef __WXGTK20__
1374 if ( (m_windowStyle & wxTE_MULTILINE) &&
1375 !GTK_TEXT(m_text)->line_start_cache )
1376 {
1377 // tell the programmer that it didn't work
1378 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1379 return;
1380 }
1381 #endif
1382
1383 if (m_windowStyle & wxTE_MULTILINE)
1384 {
1385 #ifdef __WXGTK20__
1386 GtkTextIter fromi, toi;
1387 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1388 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1389
1390 gtk_text_buffer_place_cursor( m_buffer, &toi );
1391 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1392 #else
1393 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1394 #endif
1395 }
1396 else
1397 {
1398 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1399 }
1400 }
1401
1402 void wxTextCtrl::ShowPosition( long pos )
1403 {
1404 if (m_windowStyle & wxTE_MULTILINE)
1405 {
1406 #ifdef __WXGTK20__
1407 GtkTextIter iter;
1408 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1409 gtk_text_iter_set_offset( &iter, pos );
1410 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1411 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1412 #else // GTK 1.x
1413 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1414 float totalLines = (float) GetNumberOfLines();
1415 long posX;
1416 long posY;
1417 PositionToXY(pos, &posX, &posY);
1418 float posLine = (float) posY;
1419 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1420 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1421 #endif // GTK 1.x/2.x
1422 }
1423 }
1424
1425 #ifdef __WXGTK20__
1426
1427 wxTextCtrlHitTestResult
1428 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1429 {
1430 if ( !IsMultiLine() )
1431 {
1432 // not supported
1433 return wxTE_HT_UNKNOWN;
1434 }
1435
1436 int x, y;
1437 gtk_text_view_window_to_buffer_coords
1438 (
1439 GTK_TEXT_VIEW(m_text),
1440 GTK_TEXT_WINDOW_TEXT,
1441 pt.x, pt.y,
1442 &x, &y
1443 );
1444
1445 GtkTextIter iter;
1446 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1447 if ( pos )
1448 *pos = gtk_text_iter_get_offset(&iter);
1449
1450 return wxTE_HT_ON_TEXT;
1451 }
1452
1453 #endif // __WXGTK20__
1454
1455 long wxTextCtrl::GetInsertionPoint() const
1456 {
1457 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1458
1459 #ifdef __WXGTK20__
1460 if (m_windowStyle & wxTE_MULTILINE)
1461 {
1462 // There is no direct accessor for the cursor, but
1463 // internally, the cursor is the "mark" called
1464 // "insert" in the text view's btree structure.
1465
1466 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1467 GtkTextIter cursor;
1468 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1469
1470 return gtk_text_iter_get_offset( &cursor );
1471 }
1472 else
1473 #endif
1474 {
1475 return (long) GET_EDITABLE_POS(m_text);
1476 }
1477 }
1478
1479 wxTextPos wxTextCtrl::GetLastPosition() const
1480 {
1481 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1482
1483 int pos = 0;
1484
1485 if (m_windowStyle & wxTE_MULTILINE)
1486 {
1487 #ifdef __WXGTK20__
1488 GtkTextIter end;
1489 gtk_text_buffer_get_end_iter( m_buffer, &end );
1490
1491 pos = gtk_text_iter_get_offset( &end );
1492 #else
1493 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1494 #endif
1495 }
1496 else
1497 {
1498 pos = GTK_ENTRY(m_text)->text_length;
1499 }
1500
1501 return (long)pos;
1502 }
1503
1504 void wxTextCtrl::Remove( long from, long to )
1505 {
1506 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1507
1508 #ifdef __WXGTK20__
1509 if (m_windowStyle & wxTE_MULTILINE)
1510 {
1511 GtkTextIter fromi, toi;
1512 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1513 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1514
1515 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1516 }
1517 else // single line
1518 #endif
1519 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1520 }
1521
1522 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1523 {
1524 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1525
1526 Remove( from, to );
1527
1528 if (!value.empty())
1529 {
1530 #ifdef __WXGTK20__
1531 SetInsertionPoint( from );
1532 WriteText( value );
1533 #else // GTK 1.x
1534 gint pos = (gint)from;
1535 #if wxUSE_UNICODE
1536 wxWX2MBbuf buf = value.mbc_str();
1537 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1538 #else
1539 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1540 #endif // wxUSE_UNICODE
1541 #endif // GTK 1.x/2.x
1542 }
1543 }
1544
1545 void wxTextCtrl::Cut()
1546 {
1547 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1548
1549 #ifdef __WXGTK20__
1550 if (m_windowStyle & wxTE_MULTILINE)
1551 g_signal_emit_by_name(m_text, "cut-clipboard");
1552 else
1553 #endif
1554 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1555 }
1556
1557 void wxTextCtrl::Copy()
1558 {
1559 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1560
1561 #ifdef __WXGTK20__
1562 if (m_windowStyle & wxTE_MULTILINE)
1563 g_signal_emit_by_name(m_text, "copy-clipboard");
1564 else
1565 #endif
1566 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1567 }
1568
1569 void wxTextCtrl::Paste()
1570 {
1571 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1572
1573 #ifdef __WXGTK20__
1574 if (m_windowStyle & wxTE_MULTILINE)
1575 g_signal_emit_by_name(m_text, "paste-clipboard");
1576 else
1577 #endif
1578 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1579 }
1580
1581 // Undo/redo
1582 void wxTextCtrl::Undo()
1583 {
1584 // TODO
1585 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1586 }
1587
1588 void wxTextCtrl::Redo()
1589 {
1590 // TODO
1591 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1592 }
1593
1594 bool wxTextCtrl::CanUndo() const
1595 {
1596 // TODO
1597 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1598 return false;
1599 }
1600
1601 bool wxTextCtrl::CanRedo() const
1602 {
1603 // TODO
1604 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1605 return false;
1606 }
1607
1608 // If the return values from and to are the same, there is no
1609 // selection.
1610 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1611 {
1612 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1613
1614 gint from = -1;
1615 gint to = -1;
1616 bool haveSelection = false;
1617
1618 #ifdef __WXGTK20__
1619 if (m_windowStyle & wxTE_MULTILINE)
1620 {
1621 GtkTextIter ifrom, ito;
1622 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1623 {
1624 haveSelection = true;
1625 from = gtk_text_iter_get_offset(&ifrom);
1626 to = gtk_text_iter_get_offset(&ito);
1627 }
1628 }
1629 else // not multi-line
1630 {
1631 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1632 &from, &to) )
1633 {
1634 haveSelection = true;
1635 }
1636 }
1637 #else // not GTK2
1638 if ( (GTK_EDITABLE(m_text)->has_selection) )
1639 {
1640 haveSelection = true;
1641 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1642 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1643 }
1644 #endif
1645
1646 if (! haveSelection )
1647 from = to = GetInsertionPoint();
1648
1649 if ( from > to )
1650 {
1651 // exchange them to be compatible with wxMSW
1652 gint tmp = from;
1653 from = to;
1654 to = tmp;
1655 }
1656
1657 if ( fromOut )
1658 *fromOut = from;
1659 if ( toOut )
1660 *toOut = to;
1661 }
1662
1663
1664 bool wxTextCtrl::IsEditable() const
1665 {
1666 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1667
1668 #ifdef __WXGTK20__
1669 if (m_windowStyle & wxTE_MULTILINE)
1670 {
1671 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1672 }
1673 else
1674 {
1675 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1676 }
1677 #else
1678 return GTK_EDITABLE(m_text)->editable;
1679 #endif
1680 }
1681
1682 bool wxTextCtrl::IsModified() const
1683 {
1684 return m_modified;
1685 }
1686
1687 void wxTextCtrl::Clear()
1688 {
1689 SetValue( wxT("") );
1690 }
1691
1692 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1693 {
1694 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1695
1696 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1697 {
1698 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1699 event.SetEventObject(this);
1700 event.SetString(GetValue());
1701 if (GetEventHandler()->ProcessEvent(event)) return;
1702 }
1703
1704 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1705 {
1706 // This will invoke the dialog default action, such
1707 // as the clicking the default button.
1708
1709 wxWindow *top_frame = m_parent;
1710 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1711 top_frame = top_frame->GetParent();
1712
1713 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1714 {
1715 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1716
1717 if (window->default_widget)
1718 {
1719 gtk_widget_activate (window->default_widget);
1720 return;
1721 }
1722 }
1723 }
1724
1725 key_event.Skip();
1726 }
1727
1728 GtkWidget* wxTextCtrl::GetConnectWidget()
1729 {
1730 return GTK_WIDGET(m_text);
1731 }
1732
1733 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1734 {
1735 if (m_windowStyle & wxTE_MULTILINE)
1736 {
1737 #ifdef __WXGTK20__
1738 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1739 #else
1740 return (window == GTK_TEXT(m_text)->text_area);
1741 #endif
1742 }
1743 else
1744 {
1745 return (window == GTK_ENTRY(m_text)->text_area);
1746 }
1747 }
1748
1749 // the font will change for subsequent text insertiongs
1750 bool wxTextCtrl::SetFont( const wxFont &font )
1751 {
1752 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1753
1754 if ( !wxTextCtrlBase::SetFont(font) )
1755 {
1756 // font didn't change, nothing to do
1757 return false;
1758 }
1759
1760 if ( m_windowStyle & wxTE_MULTILINE )
1761 {
1762 SetUpdateFont(true);
1763
1764 m_defaultStyle.SetFont(font);
1765
1766 ChangeFontGlobally();
1767 }
1768
1769 return true;
1770 }
1771
1772 void wxTextCtrl::ChangeFontGlobally()
1773 {
1774 // this method is very inefficient and hence should be called as rarely as
1775 // possible!
1776 //
1777 // TODO: it can be implemented much more efficiently for GTK2
1778 #ifndef __WXGTK20__
1779 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1780
1781 _T("shouldn't be called for single line controls") );
1782 #else
1783 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1784 _T("shouldn't be called for single line controls") );
1785 #endif
1786
1787 wxString value = GetValue();
1788 if ( !value.empty() )
1789 {
1790 SetUpdateFont(false);
1791
1792 Clear();
1793 AppendText(value);
1794 }
1795 }
1796
1797 #ifndef __WXGTK20__
1798
1799 void wxTextCtrl::UpdateFontIfNeeded()
1800 {
1801 if ( m_updateFont )
1802 ChangeFontGlobally();
1803 }
1804
1805 #endif // GTK+ 1.x
1806
1807 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1808 {
1809 if ( !wxControl::SetForegroundColour(colour) )
1810 return false;
1811
1812 // update default fg colour too
1813 m_defaultStyle.SetTextColour(colour);
1814
1815 return true;
1816 }
1817
1818 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1819 {
1820 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1821
1822 if ( !wxControl::SetBackgroundColour( colour ) )
1823 return false;
1824
1825 #ifndef __WXGTK20__
1826 if (!m_widget->window)
1827 return false;
1828 #endif
1829
1830 if (!m_backgroundColour.Ok())
1831 return false;
1832
1833 if (m_windowStyle & wxTE_MULTILINE)
1834 {
1835 #ifndef __WXGTK20__
1836 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1837 if (!window)
1838 return false;
1839 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1840 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1841 gdk_window_clear( window );
1842 #endif
1843 }
1844
1845 // change active background color too
1846 m_defaultStyle.SetBackgroundColour( colour );
1847
1848 return true;
1849 }
1850
1851 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1852 {
1853 if ( m_windowStyle & wxTE_MULTILINE )
1854 {
1855 if ( style.IsDefault() )
1856 {
1857 // nothing to do
1858 return true;
1859 }
1860 #ifdef __WXGTK20__
1861 gint l = gtk_text_buffer_get_char_count( m_buffer );
1862
1863 wxCHECK_MSG( start >= 0 && end <= l, false,
1864 _T("invalid range in wxTextCtrl::SetStyle") );
1865
1866 GtkTextIter starti, endi;
1867 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1868 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1869
1870 // use the attributes from style which are set in it and fall back
1871 // first to the default style and then to the text control default
1872 // colours for the others
1873 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1874
1875 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1876
1877 return true;
1878 #else
1879 // VERY dirty way to do that - removes the required text and re-adds it
1880 // with styling (FIXME)
1881
1882 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1883
1884 wxCHECK_MSG( start >= 0 && end <= l, false,
1885 _T("invalid range in wxTextCtrl::SetStyle") );
1886
1887 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1888 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1889 wxString tmp(text,*wxConvCurrent);
1890 g_free( text );
1891
1892 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1893 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1894
1895 #if wxUSE_UNICODE
1896 wxWX2MBbuf buf = tmp.mbc_str();
1897 const char *txt = buf;
1898 size_t txtlen = strlen(buf);
1899 #else
1900 const char *txt = tmp;
1901 size_t txtlen = tmp.length();
1902 #endif
1903
1904 // use the attributes from style which are set in it and fall back
1905 // first to the default style and then to the text control default
1906 // colours for the others
1907 wxGtkTextInsert(m_text,
1908 wxTextAttr::Combine(style, m_defaultStyle, this),
1909 txt,
1910 txtlen);
1911
1912 /* does not seem to help under GTK+ 1.2 !!!
1913 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1914 SetInsertionPoint( old_pos );
1915 #endif
1916 return true;
1917 }
1918 else // singe line
1919 {
1920 // cannot do this for GTK+'s Entry widget
1921 return false;
1922 }
1923 }
1924
1925 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1926 {
1927 gtk_widget_modify_style(m_text, style);
1928 }
1929
1930 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1931 {
1932 Cut();
1933 }
1934
1935 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1936 {
1937 Copy();
1938 }
1939
1940 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1941 {
1942 Paste();
1943 }
1944
1945 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1946 {
1947 Undo();
1948 }
1949
1950 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1951 {
1952 Redo();
1953 }
1954
1955 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1956 {
1957 event.Enable( CanCut() );
1958 }
1959
1960 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1961 {
1962 event.Enable( CanCopy() );
1963 }
1964
1965 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1966 {
1967 event.Enable( CanPaste() );
1968 }
1969
1970 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1971 {
1972 event.Enable( CanUndo() );
1973 }
1974
1975 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1976 {
1977 event.Enable( CanRedo() );
1978 }
1979
1980 void wxTextCtrl::OnInternalIdle()
1981 {
1982 wxCursor cursor = m_cursor;
1983 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1984
1985 if (cursor.Ok())
1986 {
1987 #ifndef __WXGTK20__
1988 GdkWindow *window = (GdkWindow*) NULL;
1989 if (HasFlag(wxTE_MULTILINE))
1990 window = GTK_TEXT(m_text)->text_area;
1991 else
1992 window = GTK_ENTRY(m_text)->text_area;
1993
1994 if (window)
1995 gdk_window_set_cursor( window, cursor.GetCursor() );
1996
1997 if (!g_globalCursor.Ok())
1998 cursor = *wxSTANDARD_CURSOR;
1999
2000 window = m_widget->window;
2001 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2002 gdk_window_set_cursor( window, cursor.GetCursor() );
2003 #endif
2004 }
2005
2006 if (g_delayedFocus == this)
2007 {
2008 if (GTK_WIDGET_REALIZED(m_widget))
2009 {
2010 gtk_widget_grab_focus( m_widget );
2011 g_delayedFocus = NULL;
2012 }
2013 }
2014
2015 if (wxUpdateUIEvent::CanUpdate(this))
2016 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2017 }
2018
2019 wxSize wxTextCtrl::DoGetBestSize() const
2020 {
2021 // FIXME should be different for multi-line controls...
2022 wxSize ret( wxControl::DoGetBestSize() );
2023 wxSize best(80, ret.y);
2024 CacheBestSize(best);
2025 return best;
2026 }
2027
2028 // ----------------------------------------------------------------------------
2029 // freeze/thaw
2030 // ----------------------------------------------------------------------------
2031
2032 void wxTextCtrl::Freeze()
2033 {
2034 if ( HasFlag(wxTE_MULTILINE) )
2035 {
2036 #ifdef __WXGTK20__
2037 if ( !m_frozenness++ )
2038 {
2039 // freeze textview updates and remove buffer
2040 g_signal_connect( G_OBJECT(m_text), "expose_event",
2041 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2042 g_signal_connect( G_OBJECT(m_widget), "expose_event",
2043 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2044 gtk_widget_set_sensitive(m_widget, false);
2045 g_object_ref(m_buffer);
2046 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2047 }
2048 #else
2049 gtk_text_freeze(GTK_TEXT(m_text));
2050 #endif
2051 }
2052 }
2053
2054 void wxTextCtrl::Thaw()
2055 {
2056 if ( HasFlag(wxTE_MULTILINE) )
2057 {
2058 #ifdef __WXGTK20__
2059 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2060
2061 if ( !--m_frozenness )
2062 {
2063 // Reattach buffer and thaw textview updates
2064 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2065 g_object_unref(m_buffer);
2066 gtk_widget_set_sensitive(m_widget, true);
2067 g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2068 g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2069 }
2070 #else
2071 GTK_TEXT(m_text)->vadj->value = 0.0;
2072
2073 gtk_text_thaw(GTK_TEXT(m_text));
2074 #endif
2075 }
2076 }
2077
2078 // ----------------------------------------------------------------------------
2079 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2080 // ----------------------------------------------------------------------------
2081
2082 #ifdef __WXGTK20__
2083
2084 // FIXME: when dragging on a link the sample gets an "Unknown event".
2085 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2086 // a buggy sample, or something else
2087 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2088 {
2089 event.Skip();
2090 if(!(m_windowStyle & wxTE_AUTO_URL))
2091 return;
2092
2093 gint x, y;
2094 GtkTextIter start, end;
2095 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2096 "wxUrl");
2097
2098 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2099 event.GetX(), event.GetY(), &x, &y);
2100
2101 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2102 if (!gtk_text_iter_has_tag(&end, tag))
2103 {
2104 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2105 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2106 return;
2107 }
2108
2109 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2110 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2111
2112 start = end;
2113 if(!gtk_text_iter_begins_tag(&start, tag))
2114 gtk_text_iter_backward_to_tag_toggle(&start, tag);
2115 if(!gtk_text_iter_ends_tag(&end, tag))
2116 gtk_text_iter_forward_to_tag_toggle(&end, tag);
2117
2118 // Native context menu is probably not desired on an URL.
2119 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2120 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2121 event.Skip(false);
2122
2123 wxTextUrlEvent url_event(m_windowId, event,
2124 gtk_text_iter_get_offset(&start),
2125 gtk_text_iter_get_offset(&end));
2126
2127 InitCommandEvent(url_event);
2128 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2129 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2130 GetEventHandler()->ProcessEvent(url_event);
2131 }
2132 #endif // gtk2
2133
2134 // ----------------------------------------------------------------------------
2135 // scrolling
2136 // ----------------------------------------------------------------------------
2137
2138 GtkAdjustment *wxTextCtrl::GetVAdj() const
2139 {
2140 if ( !IsMultiLine() )
2141 return NULL;
2142
2143 #ifdef __WXGTK20__
2144 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2145 #else
2146 return GTK_TEXT(m_text)->vadj;
2147 #endif
2148 }
2149
2150 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2151 {
2152 float value = adj->value + diff;
2153
2154 if ( value < 0 )
2155 value = 0;
2156
2157 float upper = adj->upper - adj->page_size;
2158 if ( value > upper )
2159 value = upper;
2160
2161 // did we noticeably change the scroll position?
2162 if ( fabs(adj->value - value) < 0.2 )
2163 {
2164 // well, this is what Robert does in wxScrollBar, so it must be good...
2165 return false;
2166 }
2167
2168 adj->value = value;
2169
2170 #ifdef __WXGTK20__
2171 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2172 #else
2173 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2174 #endif
2175
2176 return true;
2177 }
2178
2179 bool wxTextCtrl::ScrollLines(int lines)
2180 {
2181 GtkAdjustment *adj = GetVAdj();
2182 if ( !adj )
2183 return false;
2184
2185 #ifdef __WXGTK20__
2186 int diff = (int)ceil(lines*adj->step_increment);
2187 #else
2188 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2189 int diff = 10*lines;
2190 #endif
2191
2192 return DoScroll(adj, diff);
2193 }
2194
2195 bool wxTextCtrl::ScrollPages(int pages)
2196 {
2197 GtkAdjustment *adj = GetVAdj();
2198 if ( !adj )
2199 return false;
2200
2201 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2202 }
2203
2204
2205 // static
2206 wxVisualAttributes
2207 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2208 {
2209 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2210 }
wxWidgets (Impactor)