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Don't crash if buffer null
[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 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 #endif
618 wrap = GTK_WRAP_WORD;
619 }
620
621 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
622
623 if (!HasFlag(wxNO_BORDER))
624 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
625
626 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
627
628 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
629 #else // GTK+ 1
630 // create our control ...
631 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
632
633 // ... and put into the upper left hand corner of the table
634 bool bHasHScrollbar = false;
635 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
636 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
637 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
638 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
639 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
640 0, 0);
641
642 // always wrap words
643 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
644
645 // finally, put the vertical scrollbar in the upper right corner
646 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
647 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
648 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
649 GTK_FILL,
650 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
651 0, 0);
652 #endif // GTK+ 2/1
653 }
654 else
655 {
656 // a single-line text control: no need for scrollbars
657 m_widget =
658 m_text = gtk_entry_new();
659
660 #ifdef __WXGTK20__
661 if (style & wxNO_BORDER)
662 g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
663 #endif
664 }
665
666 m_parent->DoAddChild( this );
667
668 m_focusWidget = m_text;
669
670 PostCreation(size);
671
672 if (multi_line)
673 gtk_widget_show(m_text);
674
675 #ifndef __WXGTK20__
676 if (multi_line)
677 {
678 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
679 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
680
681 // only initialize gs_gtk_text_draw once, starting from the next the
682 // klass::draw will already be wxgtk_text_draw
683 if ( !gs_gtk_text_draw )
684 {
685 GtkDrawCallback&
686 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
687
688 gs_gtk_text_draw = draw;
689
690 draw = wxgtk_text_draw;
691 }
692 }
693 #endif // GTK+ 1.x
694
695 if (!value.empty())
696 {
697 #ifdef __WXGTK20__
698 SetValue( value );
699 #else
700
701 #if !GTK_CHECK_VERSION(1, 2, 0)
702 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
703 // gtk_editable_insert_text()
704 gtk_widget_realize(m_text);
705 #endif // GTK 1.0
706
707 gint tmp = 0;
708 #if wxUSE_UNICODE
709 wxWX2MBbuf val = value.mbc_str();
710 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
711 #else
712 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
713 #endif
714
715 if (multi_line)
716 {
717 // Bring editable's cursor uptodate. Bug in GTK.
718 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
719 }
720
721 #endif
722 }
723
724 if (style & wxTE_PASSWORD)
725 {
726 if (!multi_line)
727 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
728 }
729
730 if (style & wxTE_READONLY)
731 {
732 if (!multi_line)
733 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
734 #ifdef __WXGTK20__
735 else
736 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
737 #else
738 }
739 else
740 {
741 if (multi_line)
742 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
743 #endif
744 }
745
746 #ifdef __WXGTK20__
747 if (multi_line)
748 {
749 if (style & wxTE_RIGHT)
750 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
751 else if (style & wxTE_CENTRE)
752 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
753 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
754 }
755 else
756 {
757 #ifdef __WXGTK24__
758 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
759 if (!gtk_check_version(2,4,0))
760 {
761 if (style & wxTE_RIGHT)
762 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
763 else if (style & wxTE_CENTRE)
764 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
765 }
766 #endif
767 }
768 #endif // __WXGTK20__
769
770 // We want to be notified about text changes.
771 #ifdef __WXGTK20__
772 if (multi_line)
773 {
774 g_signal_connect( G_OBJECT(m_buffer), "changed",
775 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
776
777 // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
778 if (style & wxTE_AUTO_URL)
779 {
780 GtkTextIter start, end;
781 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
782 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
783
784 // We create our wxUrl tag here for slight efficiency gain - we
785 // don't have to check for the tag existance in callbacks,
786 // hereby it's guaranteed to exist.
787 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
788 "foreground", "blue",
789 "underline", PANGO_UNDERLINE_SINGLE,
790 NULL);
791
792 // Check for URLs after each text change
793 g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
794 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
795 g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
796 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
797
798 // Block all wxUrl tag applying unless we do it ourselves, in which case we
799 // block this callback temporarily. This takes care of gtk+ internal
800 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
801 // which is undesired because only a part of the URL might be copied.
802 // The insert-text signal emitted inside it will take care of newly formed
803 // or wholly copied URLs.
804 g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
805 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
806
807 // Check for URLs in the initial string passed to Create
808 gtk_text_buffer_get_start_iter(m_buffer, &start);
809 gtk_text_buffer_get_end_iter(m_buffer, &end);
810 au_check_range(&start, &end);
811 }
812 }
813 else
814 #endif
815
816 {
817 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
818 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
819 }
820
821 m_cursor = wxCursor( wxCURSOR_IBEAM );
822
823 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
824 SetDefaultStyle( attrDef );
825
826 return true;
827 }
828
829
830 void wxTextCtrl::CalculateScrollbar()
831 {
832 #ifndef __WXGTK20__
833 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
834
835 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
836
837 if (adj->upper - adj->page_size < 0.8)
838 {
839 if (m_vScrollbarVisible)
840 {
841 gtk_widget_hide( m_vScrollbar );
842 m_vScrollbarVisible = false;
843 }
844 }
845 else
846 {
847 if (!m_vScrollbarVisible)
848 {
849 gtk_widget_show( m_vScrollbar );
850 m_vScrollbarVisible = true;
851 }
852 }
853 #endif
854 }
855
856 wxString wxTextCtrl::GetValue() const
857 {
858 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
859
860 wxString tmp;
861 if (m_windowStyle & wxTE_MULTILINE)
862 {
863 #ifdef __WXGTK20__
864 GtkTextIter start;
865 gtk_text_buffer_get_start_iter( m_buffer, &start );
866 GtkTextIter end;
867 gtk_text_buffer_get_end_iter( m_buffer, &end );
868 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
869
870 #if wxUSE_UNICODE
871 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
872 #else
873 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
874 #endif
875 if ( buffer )
876 tmp = buffer;
877
878 g_free( text );
879 #else
880 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
881 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
882 tmp = text;
883 g_free( text );
884 #endif
885 }
886 else
887 {
888 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
889 }
890
891 return tmp;
892 }
893
894 void wxTextCtrl::SetValue( const wxString &value )
895 {
896 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
897
898 if (m_windowStyle & wxTE_MULTILINE)
899 {
900 #ifdef __WXGTK20__
901
902 #if wxUSE_UNICODE
903 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
904 #else
905 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
906 #endif
907 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
908 IgnoreNextTextUpdate();
909
910 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
911
912 #else
913 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
914 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
915 len = 0;
916 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
917 #endif
918 }
919 else
920 {
921 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
922 }
923
924 // GRG, Jun/2000: Changed this after a lot of discussion in
925 // the lists. wxWidgets 2.2 will have a set of flags to
926 // customize this behaviour.
927 SetInsertionPoint(0);
928
929 m_modified = false;
930 }
931
932 void wxTextCtrl::WriteText( const wxString &text )
933 {
934 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
935
936 if ( text.empty() )
937 return;
938
939 // gtk_text_changed_callback() will set m_modified to true but m_modified
940 // shouldn't be changed by the program writing to the text control itself,
941 // so save the old value and restore when we're done
942 bool oldModified = m_modified;
943
944 if ( m_windowStyle & wxTE_MULTILINE )
945 {
946 #ifdef __WXGTK20__
947
948 #if wxUSE_UNICODE
949 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
950 #else
951 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
952 #endif
953 if ( !buffer )
954 {
955 // what else can we do? at least don't crash...
956 return;
957 }
958
959 // TODO: Call whatever is needed to delete the selection.
960 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
961
962 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
963 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
964 if ( adj->value == adj->upper - adj->page_size )
965 {
966 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
967 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
968 }
969 #else // GTK 1.x
970 // After cursor movements, gtk_text_get_point() is wrong by one.
971 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
972
973 // always use m_defaultStyle, even if it is empty as otherwise
974 // resetting the style and appending some more text wouldn't work: if
975 // we don't specify the style explicitly, the old style would be used
976 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
977 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
978
979 // we called wxGtkTextInsert with correct font, no need to do anything
980 // in UpdateFontIfNeeded() any longer
981 if ( !text.empty() )
982 {
983 SetUpdateFont(false);
984 }
985
986 // Bring editable's cursor back uptodate.
987 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
988 #endif // GTK 1.x/2.0
989 }
990 else // single line
991 {
992 // First remove the selection if there is one
993 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
994
995 // This moves the cursor pos to behind the inserted text.
996 gint len = GET_EDITABLE_POS(m_text);
997
998 #ifdef __WXGTK20__
999
1000 #if wxUSE_UNICODE
1001 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1002 #else
1003 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1004 #endif
1005 if ( !buffer )
1006 {
1007 // what else can we do? at least don't crash...
1008 return;
1009 }
1010
1011 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1012
1013 #else
1014 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1015 #endif
1016
1017 // Bring entry's cursor uptodate.
1018 gtk_entry_set_position( GTK_ENTRY(m_text), len );
1019 }
1020
1021 m_modified = oldModified;
1022 }
1023
1024 void wxTextCtrl::AppendText( const wxString &text )
1025 {
1026 SetInsertionPointEnd();
1027 WriteText( text );
1028 }
1029
1030 wxString wxTextCtrl::GetLineText( long lineNo ) const
1031 {
1032 if (m_windowStyle & wxTE_MULTILINE)
1033 {
1034 #ifndef __WXGTK20__
1035 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1036 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1037
1038 if (text)
1039 {
1040 wxString buf(wxT(""));
1041 long i;
1042 int currentLine = 0;
1043 for (i = 0; currentLine != lineNo && text[i]; i++ )
1044 if (text[i] == '\n')
1045 currentLine++;
1046 // Now get the text
1047 int j;
1048 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1049 buf += text[i];
1050
1051 g_free( text );
1052 return buf;
1053 }
1054 else
1055 {
1056 return wxEmptyString;
1057 }
1058 #else
1059 GtkTextIter line;
1060 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1061 GtkTextIter end;
1062 gtk_text_buffer_get_end_iter(m_buffer,&end );
1063 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1064 wxString result(wxGTK_CONV_BACK(text));
1065 g_free(text);
1066 return result.BeforeFirst(wxT('\n'));
1067 #endif
1068 }
1069 else
1070 {
1071 if (lineNo == 0) return GetValue();
1072 return wxEmptyString;
1073 }
1074 }
1075
1076 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1077 {
1078 /* If you implement this, don't forget to update the documentation!
1079 * (file docs/latex/wx/text.tex) */
1080 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1081 }
1082
1083 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1084 {
1085 if ( m_windowStyle & wxTE_MULTILINE )
1086 {
1087 wxString text = GetValue();
1088
1089 // cast to prevent warning. But pos really should've been unsigned.
1090 if( (unsigned long)pos > text.Len() )
1091 return false;
1092
1093 *x=0; // First Col
1094 *y=0; // First Line
1095
1096 const wxChar* stop = text.c_str() + pos;
1097 for ( const wxChar *p = text.c_str(); p < stop; p++ )
1098 {
1099 if (*p == wxT('\n'))
1100 {
1101 (*y)++;
1102 *x=0;
1103 }
1104 else
1105 (*x)++;
1106 }
1107 }
1108 else // single line control
1109 {
1110 if ( pos <= GTK_ENTRY(m_text)->text_length )
1111 {
1112 *y = 0;
1113 *x = pos;
1114 }
1115 else
1116 {
1117 // index out of bounds
1118 return false;
1119 }
1120 }
1121
1122 return true;
1123 }
1124
1125 long wxTextCtrl::XYToPosition(long x, long y ) const
1126 {
1127 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1128
1129 long pos=0;
1130 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1131
1132 pos += x;
1133 return pos;
1134 }
1135
1136 int wxTextCtrl::GetLineLength(long lineNo) const
1137 {
1138 wxString str = GetLineText (lineNo);
1139 return (int) str.Length();
1140 }
1141
1142 int wxTextCtrl::GetNumberOfLines() const
1143 {
1144 if (m_windowStyle & wxTE_MULTILINE)
1145 {
1146 #ifdef __WXGTK20__
1147 return gtk_text_buffer_get_line_count( m_buffer );
1148 #else
1149 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1150 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1151
1152 if (text)
1153 {
1154 int currentLine = 0;
1155 for (int i = 0; i < len; i++ )
1156 {
1157 if (text[i] == '\n')
1158 currentLine++;
1159 }
1160 g_free( text );
1161
1162 // currentLine is 0 based, add 1 to get number of lines
1163 return currentLine + 1;
1164 }
1165 else
1166 {
1167 return 0;
1168 }
1169 #endif
1170 }
1171 else
1172 {
1173 return 1;
1174 }
1175 }
1176
1177 void wxTextCtrl::SetInsertionPoint( long pos )
1178 {
1179 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1180
1181 if ( IsMultiLine() )
1182 {
1183 #ifdef __WXGTK20__
1184 GtkTextIter iter;
1185 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1186 gtk_text_buffer_place_cursor( m_buffer, &iter );
1187 gtk_text_view_scroll_mark_onscreen
1188 (
1189 GTK_TEXT_VIEW(m_text),
1190 gtk_text_buffer_get_insert( m_buffer )
1191 );
1192 #else // GTK+ 1.x
1193 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1194 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1195
1196 /* we fake a set_point by inserting and deleting. as the user
1197 isn't supposed to get to know about this non-sense, we
1198 disconnect so that no events are sent to the user program. */
1199
1200 gint tmp = (gint)pos;
1201 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1202 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1203
1204 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1205 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1206
1207 // bring editable's cursor uptodate. Bug in GTK.
1208 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1209 #endif // GTK+ 2/1
1210 }
1211 else
1212 {
1213 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1214
1215 // Bring editable's cursor uptodate. Bug in GTK.
1216 SET_EDITABLE_POS(m_text, (guint32)pos);
1217 }
1218 }
1219
1220 void wxTextCtrl::SetInsertionPointEnd()
1221 {
1222 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1223
1224 if (m_windowStyle & wxTE_MULTILINE)
1225 {
1226 #ifdef __WXGTK20__
1227 GtkTextIter end;
1228 gtk_text_buffer_get_end_iter( m_buffer, &end );
1229 gtk_text_buffer_place_cursor( m_buffer, &end );
1230 #else
1231 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1232 #endif
1233 }
1234 else
1235 {
1236 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1237 }
1238 }
1239
1240 void wxTextCtrl::SetEditable( bool editable )
1241 {
1242 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1243
1244 if (m_windowStyle & wxTE_MULTILINE)
1245 {
1246 #ifdef __WXGTK20__
1247 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1248 #else
1249 gtk_text_set_editable( GTK_TEXT(m_text), editable );
1250 #endif
1251 }
1252 else
1253 {
1254 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1255 }
1256 }
1257
1258 bool wxTextCtrl::Enable( bool enable )
1259 {
1260 if (!wxWindowBase::Enable(enable))
1261 {
1262 // nothing to do
1263 return false;
1264 }
1265
1266 if (m_windowStyle & wxTE_MULTILINE)
1267 {
1268 #ifdef __WXGTK20__
1269 SetEditable( enable );
1270 #else
1271 gtk_text_set_editable( GTK_TEXT(m_text), enable );
1272 OnParentEnable(enable);
1273 #endif
1274 }
1275 else
1276 {
1277 gtk_widget_set_sensitive( m_text, enable );
1278 }
1279
1280 return true;
1281 }
1282
1283 // wxGTK-specific: called recursively by Enable,
1284 // to give widgets an oppprtunity to correct their colours after they
1285 // have been changed by Enable
1286 void wxTextCtrl::OnParentEnable( bool enable )
1287 {
1288 // If we have a custom background colour, we use this colour in both
1289 // disabled and enabled mode, or we end up with a different colour under the
1290 // text.
1291 wxColour oldColour = GetBackgroundColour();
1292 if (oldColour.Ok())
1293 {
1294 // Need to set twice or it'll optimize the useful stuff out
1295 if (oldColour == * wxWHITE)
1296 SetBackgroundColour(*wxBLACK);
1297 else
1298 SetBackgroundColour(*wxWHITE);
1299 SetBackgroundColour(oldColour);
1300 }
1301 }
1302
1303 void wxTextCtrl::MarkDirty()
1304 {
1305 m_modified = true;
1306 }
1307
1308 void wxTextCtrl::DiscardEdits()
1309 {
1310 m_modified = false;
1311 }
1312
1313 // ----------------------------------------------------------------------------
1314 // max text length support
1315 // ----------------------------------------------------------------------------
1316
1317 void wxTextCtrl::IgnoreNextTextUpdate()
1318 {
1319 m_ignoreNextUpdate = true;
1320 }
1321
1322 bool wxTextCtrl::IgnoreTextUpdate()
1323 {
1324 if ( m_ignoreNextUpdate )
1325 {
1326 m_ignoreNextUpdate = false;
1327
1328 return true;
1329 }
1330
1331 return false;
1332 }
1333
1334 void wxTextCtrl::SetMaxLength(unsigned long len)
1335 {
1336 if ( !HasFlag(wxTE_MULTILINE) )
1337 {
1338 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1339
1340 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1341 // we had tried to enter more text than allowed by max text length and
1342 // the text wasn't really changed
1343 //
1344 // to detect this and generate TEXT_MAXLEN event instead of
1345 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1346 //
1347 // when max len is set to 0 we disconnect our handler as it means that
1348 // we shouldn't check anything any more
1349 if ( len )
1350 {
1351 gtk_signal_connect( GTK_OBJECT(m_text),
1352 "insert_text",
1353 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1354 (gpointer)this);
1355 }
1356 else // no checking
1357 {
1358 gtk_signal_disconnect_by_func
1359 (
1360 GTK_OBJECT(m_text),
1361 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1362 (gpointer)this
1363 );
1364 }
1365 }
1366 }
1367
1368 void wxTextCtrl::SetSelection( long from, long to )
1369 {
1370 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1371
1372 if (from == -1 && to == -1)
1373 {
1374 from = 0;
1375 to = GetValue().Length();
1376 }
1377
1378 #ifndef __WXGTK20__
1379 if ( (m_windowStyle & wxTE_MULTILINE) &&
1380 !GTK_TEXT(m_text)->line_start_cache )
1381 {
1382 // tell the programmer that it didn't work
1383 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1384 return;
1385 }
1386 #endif
1387
1388 if (m_windowStyle & wxTE_MULTILINE)
1389 {
1390 #ifdef __WXGTK20__
1391 GtkTextIter fromi, toi;
1392 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1393 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1394
1395 gtk_text_buffer_place_cursor( m_buffer, &toi );
1396 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1397 #else
1398 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1399 #endif
1400 }
1401 else
1402 {
1403 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1404 }
1405 }
1406
1407 void wxTextCtrl::ShowPosition( long pos )
1408 {
1409 if (m_windowStyle & wxTE_MULTILINE)
1410 {
1411 #ifdef __WXGTK20__
1412 GtkTextIter iter;
1413 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1414 gtk_text_iter_set_offset( &iter, pos );
1415 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1416 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1417 #else // GTK 1.x
1418 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1419 float totalLines = (float) GetNumberOfLines();
1420 long posX;
1421 long posY;
1422 PositionToXY(pos, &posX, &posY);
1423 float posLine = (float) posY;
1424 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1425 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1426 #endif // GTK 1.x/2.x
1427 }
1428 }
1429
1430 #ifdef __WXGTK20__
1431
1432 wxTextCtrlHitTestResult
1433 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1434 {
1435 if ( !IsMultiLine() )
1436 {
1437 // not supported
1438 return wxTE_HT_UNKNOWN;
1439 }
1440
1441 int x, y;
1442 gtk_text_view_window_to_buffer_coords
1443 (
1444 GTK_TEXT_VIEW(m_text),
1445 GTK_TEXT_WINDOW_TEXT,
1446 pt.x, pt.y,
1447 &x, &y
1448 );
1449
1450 GtkTextIter iter;
1451 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1452 if ( pos )
1453 *pos = gtk_text_iter_get_offset(&iter);
1454
1455 return wxTE_HT_ON_TEXT;
1456 }
1457
1458 #endif // __WXGTK20__
1459
1460 long wxTextCtrl::GetInsertionPoint() const
1461 {
1462 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1463
1464 #ifdef __WXGTK20__
1465 if (m_windowStyle & wxTE_MULTILINE)
1466 {
1467 // There is no direct accessor for the cursor, but
1468 // internally, the cursor is the "mark" called
1469 // "insert" in the text view's btree structure.
1470
1471 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1472 GtkTextIter cursor;
1473 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1474
1475 return gtk_text_iter_get_offset( &cursor );
1476 }
1477 else
1478 #endif
1479 {
1480 return (long) GET_EDITABLE_POS(m_text);
1481 }
1482 }
1483
1484 wxTextPos wxTextCtrl::GetLastPosition() const
1485 {
1486 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1487
1488 int pos = 0;
1489
1490 if (m_windowStyle & wxTE_MULTILINE)
1491 {
1492 #ifdef __WXGTK20__
1493 GtkTextIter end;
1494 gtk_text_buffer_get_end_iter( m_buffer, &end );
1495
1496 pos = gtk_text_iter_get_offset( &end );
1497 #else
1498 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1499 #endif
1500 }
1501 else
1502 {
1503 pos = GTK_ENTRY(m_text)->text_length;
1504 }
1505
1506 return (long)pos;
1507 }
1508
1509 void wxTextCtrl::Remove( long from, long to )
1510 {
1511 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1512
1513 #ifdef __WXGTK20__
1514 if (m_windowStyle & wxTE_MULTILINE)
1515 {
1516 GtkTextIter fromi, toi;
1517 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1518 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1519
1520 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1521 }
1522 else // single line
1523 #endif
1524 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1525 }
1526
1527 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1528 {
1529 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1530
1531 Remove( from, to );
1532
1533 if (!value.empty())
1534 {
1535 #ifdef __WXGTK20__
1536 SetInsertionPoint( from );
1537 WriteText( value );
1538 #else // GTK 1.x
1539 gint pos = (gint)from;
1540 #if wxUSE_UNICODE
1541 wxWX2MBbuf buf = value.mbc_str();
1542 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1543 #else
1544 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1545 #endif // wxUSE_UNICODE
1546 #endif // GTK 1.x/2.x
1547 }
1548 }
1549
1550 void wxTextCtrl::Cut()
1551 {
1552 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1553
1554 #ifdef __WXGTK20__
1555 if (m_windowStyle & wxTE_MULTILINE)
1556 g_signal_emit_by_name(m_text, "cut-clipboard");
1557 else
1558 #endif
1559 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1560 }
1561
1562 void wxTextCtrl::Copy()
1563 {
1564 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1565
1566 #ifdef __WXGTK20__
1567 if (m_windowStyle & wxTE_MULTILINE)
1568 g_signal_emit_by_name(m_text, "copy-clipboard");
1569 else
1570 #endif
1571 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1572 }
1573
1574 void wxTextCtrl::Paste()
1575 {
1576 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1577
1578 #ifdef __WXGTK20__
1579 if (m_windowStyle & wxTE_MULTILINE)
1580 g_signal_emit_by_name(m_text, "paste-clipboard");
1581 else
1582 #endif
1583 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1584 }
1585
1586 // Undo/redo
1587 void wxTextCtrl::Undo()
1588 {
1589 // TODO
1590 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1591 }
1592
1593 void wxTextCtrl::Redo()
1594 {
1595 // TODO
1596 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1597 }
1598
1599 bool wxTextCtrl::CanUndo() const
1600 {
1601 // TODO
1602 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1603 return false;
1604 }
1605
1606 bool wxTextCtrl::CanRedo() const
1607 {
1608 // TODO
1609 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1610 return false;
1611 }
1612
1613 // If the return values from and to are the same, there is no
1614 // selection.
1615 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1616 {
1617 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1618
1619 gint from = -1;
1620 gint to = -1;
1621 bool haveSelection = false;
1622
1623 #ifdef __WXGTK20__
1624 if (m_windowStyle & wxTE_MULTILINE)
1625 {
1626 GtkTextIter ifrom, ito;
1627 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1628 {
1629 haveSelection = true;
1630 from = gtk_text_iter_get_offset(&ifrom);
1631 to = gtk_text_iter_get_offset(&ito);
1632 }
1633 }
1634 else // not multi-line
1635 {
1636 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1637 &from, &to) )
1638 {
1639 haveSelection = true;
1640 }
1641 }
1642 #else // not GTK2
1643 if ( (GTK_EDITABLE(m_text)->has_selection) )
1644 {
1645 haveSelection = true;
1646 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1647 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1648 }
1649 #endif
1650
1651 if (! haveSelection )
1652 from = to = GetInsertionPoint();
1653
1654 if ( from > to )
1655 {
1656 // exchange them to be compatible with wxMSW
1657 gint tmp = from;
1658 from = to;
1659 to = tmp;
1660 }
1661
1662 if ( fromOut )
1663 *fromOut = from;
1664 if ( toOut )
1665 *toOut = to;
1666 }
1667
1668
1669 bool wxTextCtrl::IsEditable() const
1670 {
1671 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1672
1673 #ifdef __WXGTK20__
1674 if (m_windowStyle & wxTE_MULTILINE)
1675 {
1676 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1677 }
1678 else
1679 {
1680 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1681 }
1682 #else
1683 return GTK_EDITABLE(m_text)->editable;
1684 #endif
1685 }
1686
1687 bool wxTextCtrl::IsModified() const
1688 {
1689 return m_modified;
1690 }
1691
1692 void wxTextCtrl::Clear()
1693 {
1694 SetValue( wxT("") );
1695 }
1696
1697 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1698 {
1699 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1700
1701 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1702 {
1703 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1704 event.SetEventObject(this);
1705 event.SetString(GetValue());
1706 if (GetEventHandler()->ProcessEvent(event)) return;
1707 }
1708
1709 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1710 {
1711 // This will invoke the dialog default action, such
1712 // as the clicking the default button.
1713
1714 wxWindow *top_frame = m_parent;
1715 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1716 top_frame = top_frame->GetParent();
1717
1718 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1719 {
1720 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1721
1722 if (window->default_widget)
1723 {
1724 gtk_widget_activate (window->default_widget);
1725 return;
1726 }
1727 }
1728 }
1729
1730 key_event.Skip();
1731 }
1732
1733 GtkWidget* wxTextCtrl::GetConnectWidget()
1734 {
1735 return GTK_WIDGET(m_text);
1736 }
1737
1738 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1739 {
1740 if (m_windowStyle & wxTE_MULTILINE)
1741 {
1742 #ifdef __WXGTK20__
1743 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1744 #else
1745 return (window == GTK_TEXT(m_text)->text_area);
1746 #endif
1747 }
1748 else
1749 {
1750 return (window == GTK_ENTRY(m_text)->text_area);
1751 }
1752 }
1753
1754 // the font will change for subsequent text insertiongs
1755 bool wxTextCtrl::SetFont( const wxFont &font )
1756 {
1757 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1758
1759 if ( !wxTextCtrlBase::SetFont(font) )
1760 {
1761 // font didn't change, nothing to do
1762 return false;
1763 }
1764
1765 if ( m_windowStyle & wxTE_MULTILINE )
1766 {
1767 SetUpdateFont(true);
1768
1769 m_defaultStyle.SetFont(font);
1770
1771 ChangeFontGlobally();
1772 }
1773
1774 return true;
1775 }
1776
1777 void wxTextCtrl::ChangeFontGlobally()
1778 {
1779 // this method is very inefficient and hence should be called as rarely as
1780 // possible!
1781 //
1782 // TODO: it can be implemented much more efficiently for GTK2
1783 #ifndef __WXGTK20__
1784 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1785
1786 _T("shouldn't be called for single line controls") );
1787 #else
1788 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1789 _T("shouldn't be called for single line controls") );
1790 #endif
1791
1792 wxString value = GetValue();
1793 if ( !value.empty() )
1794 {
1795 SetUpdateFont(false);
1796
1797 Clear();
1798 AppendText(value);
1799 }
1800 }
1801
1802 #ifndef __WXGTK20__
1803
1804 void wxTextCtrl::UpdateFontIfNeeded()
1805 {
1806 if ( m_updateFont )
1807 ChangeFontGlobally();
1808 }
1809
1810 #endif // GTK+ 1.x
1811
1812 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1813 {
1814 if ( !wxControl::SetForegroundColour(colour) )
1815 return false;
1816
1817 // update default fg colour too
1818 m_defaultStyle.SetTextColour(colour);
1819
1820 return true;
1821 }
1822
1823 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1824 {
1825 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1826
1827 if ( !wxControl::SetBackgroundColour( colour ) )
1828 return false;
1829
1830 #ifndef __WXGTK20__
1831 if (!m_widget->window)
1832 return false;
1833 #endif
1834
1835 if (!m_backgroundColour.Ok())
1836 return false;
1837
1838 if (m_windowStyle & wxTE_MULTILINE)
1839 {
1840 #ifndef __WXGTK20__
1841 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1842 if (!window)
1843 return false;
1844 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1845 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1846 gdk_window_clear( window );
1847 #endif
1848 }
1849
1850 // change active background color too
1851 m_defaultStyle.SetBackgroundColour( colour );
1852
1853 return true;
1854 }
1855
1856 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1857 {
1858 if ( m_windowStyle & wxTE_MULTILINE )
1859 {
1860 if ( style.IsDefault() )
1861 {
1862 // nothing to do
1863 return true;
1864 }
1865 #ifdef __WXGTK20__
1866 gint l = gtk_text_buffer_get_char_count( m_buffer );
1867
1868 wxCHECK_MSG( start >= 0 && end <= l, false,
1869 _T("invalid range in wxTextCtrl::SetStyle") );
1870
1871 GtkTextIter starti, endi;
1872 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1873 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1874
1875 // use the attributes from style which are set in it and fall back
1876 // first to the default style and then to the text control default
1877 // colours for the others
1878 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1879
1880 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1881
1882 return true;
1883 #else
1884 // VERY dirty way to do that - removes the required text and re-adds it
1885 // with styling (FIXME)
1886
1887 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1888
1889 wxCHECK_MSG( start >= 0 && end <= l, false,
1890 _T("invalid range in wxTextCtrl::SetStyle") );
1891
1892 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1893 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1894 wxString tmp(text,*wxConvCurrent);
1895 g_free( text );
1896
1897 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1898 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1899
1900 #if wxUSE_UNICODE
1901 wxWX2MBbuf buf = tmp.mbc_str();
1902 const char *txt = buf;
1903 size_t txtlen = strlen(buf);
1904 #else
1905 const char *txt = tmp;
1906 size_t txtlen = tmp.length();
1907 #endif
1908
1909 // use the attributes from style which are set in it and fall back
1910 // first to the default style and then to the text control default
1911 // colours for the others
1912 wxGtkTextInsert(m_text,
1913 wxTextAttr::Combine(style, m_defaultStyle, this),
1914 txt,
1915 txtlen);
1916
1917 /* does not seem to help under GTK+ 1.2 !!!
1918 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1919 SetInsertionPoint( old_pos );
1920 #endif
1921 return true;
1922 }
1923 else // singe line
1924 {
1925 // cannot do this for GTK+'s Entry widget
1926 return false;
1927 }
1928 }
1929
1930 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1931 {
1932 gtk_widget_modify_style(m_text, style);
1933 }
1934
1935 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1936 {
1937 Cut();
1938 }
1939
1940 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1941 {
1942 Copy();
1943 }
1944
1945 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1946 {
1947 Paste();
1948 }
1949
1950 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1951 {
1952 Undo();
1953 }
1954
1955 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1956 {
1957 Redo();
1958 }
1959
1960 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1961 {
1962 event.Enable( CanCut() );
1963 }
1964
1965 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1966 {
1967 event.Enable( CanCopy() );
1968 }
1969
1970 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1971 {
1972 event.Enable( CanPaste() );
1973 }
1974
1975 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1976 {
1977 event.Enable( CanUndo() );
1978 }
1979
1980 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1981 {
1982 event.Enable( CanRedo() );
1983 }
1984
1985 void wxTextCtrl::OnInternalIdle()
1986 {
1987 wxCursor cursor = m_cursor;
1988 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1989
1990 if (cursor.Ok())
1991 {
1992 #ifndef __WXGTK20__
1993 GdkWindow *window = (GdkWindow*) NULL;
1994 if (HasFlag(wxTE_MULTILINE))
1995 window = GTK_TEXT(m_text)->text_area;
1996 else
1997 window = GTK_ENTRY(m_text)->text_area;
1998
1999 if (window)
2000 gdk_window_set_cursor( window, cursor.GetCursor() );
2001
2002 if (!g_globalCursor.Ok())
2003 cursor = *wxSTANDARD_CURSOR;
2004
2005 window = m_widget->window;
2006 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2007 gdk_window_set_cursor( window, cursor.GetCursor() );
2008 #endif
2009 }
2010
2011 if (g_delayedFocus == this)
2012 {
2013 if (GTK_WIDGET_REALIZED(m_widget))
2014 {
2015 gtk_widget_grab_focus( m_widget );
2016 g_delayedFocus = NULL;
2017 }
2018 }
2019
2020 if (wxUpdateUIEvent::CanUpdate(this))
2021 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2022 }
2023
2024 wxSize wxTextCtrl::DoGetBestSize() const
2025 {
2026 // FIXME should be different for multi-line controls...
2027 wxSize ret( wxControl::DoGetBestSize() );
2028 wxSize best(80, ret.y);
2029 CacheBestSize(best);
2030 return best;
2031 }
2032
2033 // ----------------------------------------------------------------------------
2034 // freeze/thaw
2035 // ----------------------------------------------------------------------------
2036
2037 void wxTextCtrl::Freeze()
2038 {
2039 if ( HasFlag(wxTE_MULTILINE) )
2040 {
2041 #ifdef __WXGTK20__
2042 if ( !m_frozenness++ )
2043 {
2044 // freeze textview updates and remove buffer
2045 g_signal_connect( G_OBJECT(m_text), "expose_event",
2046 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2047 g_signal_connect( G_OBJECT(m_widget), "expose_event",
2048 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2049 gtk_widget_set_sensitive(m_widget, false);
2050 g_object_ref(m_buffer);
2051 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2052 }
2053 #else
2054 gtk_text_freeze(GTK_TEXT(m_text));
2055 #endif
2056 }
2057 }
2058
2059 void wxTextCtrl::Thaw()
2060 {
2061 if ( HasFlag(wxTE_MULTILINE) )
2062 {
2063 #ifdef __WXGTK20__
2064 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2065
2066 if ( !--m_frozenness )
2067 {
2068 // Reattach buffer and thaw textview updates
2069 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2070 g_object_unref(m_buffer);
2071 gtk_widget_set_sensitive(m_widget, true);
2072 g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2073 g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2074 }
2075 #else
2076 GTK_TEXT(m_text)->vadj->value = 0.0;
2077
2078 gtk_text_thaw(GTK_TEXT(m_text));
2079 #endif
2080 }
2081 }
2082
2083 // ----------------------------------------------------------------------------
2084 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2085 // ----------------------------------------------------------------------------
2086
2087 #ifdef __WXGTK20__
2088
2089 // FIXME: when dragging on a link the sample gets an "Unknown event".
2090 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2091 // a buggy sample, or something else
2092 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2093 {
2094 event.Skip();
2095 if(!(m_windowStyle & wxTE_AUTO_URL))
2096 return;
2097
2098 gint x, y;
2099 GtkTextIter start, end;
2100 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2101 "wxUrl");
2102
2103 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2104 event.GetX(), event.GetY(), &x, &y);
2105
2106 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2107 if (!gtk_text_iter_has_tag(&end, tag))
2108 {
2109 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2110 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2111 return;
2112 }
2113
2114 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2115 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2116
2117 start = end;
2118 if(!gtk_text_iter_begins_tag(&start, tag))
2119 gtk_text_iter_backward_to_tag_toggle(&start, tag);
2120 if(!gtk_text_iter_ends_tag(&end, tag))
2121 gtk_text_iter_forward_to_tag_toggle(&end, tag);
2122
2123 // Native context menu is probably not desired on an URL.
2124 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2125 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2126 event.Skip(false);
2127
2128 wxTextUrlEvent url_event(m_windowId, event,
2129 gtk_text_iter_get_offset(&start),
2130 gtk_text_iter_get_offset(&end));
2131
2132 InitCommandEvent(url_event);
2133 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2134 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2135 GetEventHandler()->ProcessEvent(url_event);
2136 }
2137 #endif // gtk2
2138
2139 // ----------------------------------------------------------------------------
2140 // scrolling
2141 // ----------------------------------------------------------------------------
2142
2143 GtkAdjustment *wxTextCtrl::GetVAdj() const
2144 {
2145 if ( !IsMultiLine() )
2146 return NULL;
2147
2148 #ifdef __WXGTK20__
2149 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2150 #else
2151 return GTK_TEXT(m_text)->vadj;
2152 #endif
2153 }
2154
2155 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2156 {
2157 float value = adj->value + diff;
2158
2159 if ( value < 0 )
2160 value = 0;
2161
2162 float upper = adj->upper - adj->page_size;
2163 if ( value > upper )
2164 value = upper;
2165
2166 // did we noticeably change the scroll position?
2167 if ( fabs(adj->value - value) < 0.2 )
2168 {
2169 // well, this is what Robert does in wxScrollBar, so it must be good...
2170 return false;
2171 }
2172
2173 adj->value = value;
2174
2175 #ifdef __WXGTK20__
2176 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2177 #else
2178 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2179 #endif
2180
2181 return true;
2182 }
2183
2184 bool wxTextCtrl::ScrollLines(int lines)
2185 {
2186 GtkAdjustment *adj = GetVAdj();
2187 if ( !adj )
2188 return false;
2189
2190 #ifdef __WXGTK20__
2191 int diff = (int)ceil(lines*adj->step_increment);
2192 #else
2193 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2194 int diff = 10*lines;
2195 #endif
2196
2197 return DoScroll(adj, diff);
2198 }
2199
2200 bool wxTextCtrl::ScrollPages(int pages)
2201 {
2202 GtkAdjustment *adj = GetVAdj();
2203 if ( !adj )
2204 return false;
2205
2206 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2207 }
2208
2209
2210 // static
2211 wxVisualAttributes
2212 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2213 {
2214 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2215 }
wxWidgets (Impactor)