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