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[wxWidgets.git] / src / gtk / textctrl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: textctrl.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11 #pragma implementation "textctrl.h"
12 #endif
13
14 // For compilers that support precompilation, includes "wx.h".
15 #include "wx/wxprec.h"
16
17 #include "wx/textctrl.h"
18 #include "wx/utils.h"
19 #include "wx/intl.h"
20 #include "wx/log.h"
21 #include "wx/settings.h"
22 #include "wx/panel.h"
23 #include "wx/strconv.h"
24 #include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
25
26 #include <sys/types.h>
27 #include <sys/stat.h>
28 #include <ctype.h>
29 #include "wx/math.h"
30
31 #include "wx/gtk/private.h"
32 #include <gdk/gdkkeysyms.h>
33
34 //-----------------------------------------------------------------------------
35 // idle system
36 //-----------------------------------------------------------------------------
37
38 extern void wxapp_install_idle_handler();
39 extern bool g_isIdle;
40
41 //-----------------------------------------------------------------------------
42 // data
43 //-----------------------------------------------------------------------------
44
45 extern bool g_blockEventsOnDrag;
46 extern wxCursor g_globalCursor;
47 extern wxWindowGTK *g_delayedFocus;
48
49 // ----------------------------------------------------------------------------
50 // helpers
51 // ----------------------------------------------------------------------------
52
53 #ifdef __WXGTK20__
54 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
55 const wxTextAttr& attr,
56 GtkTextIter *start,
57 GtkTextIter *end)
58 {
59 static gchar buf[1024];
60 GtkTextTag *tag;
61
62 if (attr.HasFont())
63 {
64 char *font_string;
65 PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
66 font_string = pango_font_description_to_string(font_description);
67 g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
68 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
69 buf );
70 if (!tag)
71 tag = gtk_text_buffer_create_tag( text_buffer, buf,
72 "font-desc", font_description,
73 NULL );
74 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
75 g_free (font_string);
76 }
77
78 if (attr.HasTextColour())
79 {
80 GdkColor *colFg = attr.GetTextColour().GetColor();
81 g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
82 colFg->red, colFg->green, colFg->blue);
83 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
84 buf );
85 if (!tag)
86 tag = gtk_text_buffer_create_tag( text_buffer, buf,
87 "foreground-gdk", colFg, NULL );
88 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
89 }
90
91 if (attr.HasBackgroundColour())
92 {
93 GdkColor *colBg = attr.GetBackgroundColour().GetColor();
94 g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
95 colBg->red, colBg->green, colBg->blue);
96 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
97 buf );
98 if (!tag)
99 tag = gtk_text_buffer_create_tag( text_buffer, buf,
100 "background-gdk", colBg, NULL );
101 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
102 }
103 }
104
105 static void wxGtkTextInsert(GtkWidget *text,
106 GtkTextBuffer *text_buffer,
107 const wxTextAttr& attr,
108 wxCharBuffer buffer)
109
110 {
111 gint start_offset;
112 GtkTextIter iter, start;
113
114 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
115 gtk_text_buffer_get_insert (text_buffer) );
116 start_offset = gtk_text_iter_get_offset (&iter);
117 gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
118
119 gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
120
121 wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
122 }
123 #else
124 static void wxGtkTextInsert(GtkWidget *text,
125 const wxTextAttr& attr,
126 const char *txt,
127 size_t len)
128 {
129 GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
130 : NULL;
131
132 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
133 : NULL;
134
135 GdkColor *colBg = attr.HasBackgroundColour()
136 ? attr.GetBackgroundColour().GetColor()
137 : NULL;
138
139 gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
140 }
141 #endif // GTK 1.x
142
143 // ----------------------------------------------------------------------------
144 // "insert_text" for GtkEntry
145 // ----------------------------------------------------------------------------
146
147 static void
148 gtk_insert_text_callback(GtkEditable *editable,
149 const gchar *new_text,
150 gint new_text_length,
151 gint *position,
152 wxTextCtrl *win)
153 {
154 if (g_isIdle)
155 wxapp_install_idle_handler();
156
157 // we should only be called if we have a max len limit at all
158 GtkEntry *entry = GTK_ENTRY (editable);
159
160 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
161
162 // check that we don't overflow the max length limit
163 //
164 // FIXME: this doesn't work when we paste a string which is going to be
165 // truncated
166 if ( entry->text_length == entry->text_max_length )
167 {
168 // we don't need to run the base class version at all
169 gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
170
171 // remember that the next changed signal is to be ignored to avoid
172 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
173 win->IgnoreNextTextUpdate();
174
175 // and generate the correct one ourselves
176 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
177 event.SetEventObject(win);
178 event.SetString(win->GetValue());
179 win->GetEventHandler()->ProcessEvent( event );
180 }
181 }
182
183 #ifdef __WXGTK20__
184 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
185
186 static void
187 au_apply_tag_callback(GtkTextBuffer *buffer,
188 GtkTextTag *tag,
189 GtkTextIter *start,
190 GtkTextIter *end,
191 gpointer textctrl)
192 {
193 if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
194 g_signal_stop_emission_by_name(buffer, "apply_tag");
195 }
196
197 //-----------------------------------------------------------------------------
198 // GtkTextCharPredicates for gtk_text_iter_*_find_char
199 //-----------------------------------------------------------------------------
200
201 static gboolean
202 pred_whitespace (gunichar ch, gpointer user_data)
203 {
204 return g_unichar_isspace(ch);
205 }
206
207 static gboolean
208 pred_non_whitespace (gunichar ch, gpointer user_data)
209 {
210 return !g_unichar_isspace(ch);
211 }
212
213 static gboolean
214 pred_nonpunct (gunichar ch, gpointer user_data)
215 {
216 return !g_unichar_ispunct(ch);
217 }
218
219 static gboolean
220 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
221 {
222 return !g_unichar_ispunct(ch) || ch == '/';
223 }
224
225 //-----------------------------------------------------------------------------
226 // Check for links between s and e and correct tags as necessary
227 //-----------------------------------------------------------------------------
228
229 // This function should be made match better while being efficient at one point.
230 // Most probably with a row of regular expressions.
231 static void
232 au_check_word( GtkTextIter *s, GtkTextIter *e )
233 {
234 static const char *URIPrefixes[] =
235 {
236 "http://",
237 "ftp://",
238 "www.",
239 "ftp.",
240 "mailto://",
241 "https://",
242 "file://",
243 "nntp://",
244 "news://",
245 "telnet://",
246 "mms://",
247 "gopher://",
248 "prospero://",
249 "wais://",
250 };
251
252 GtkTextIter start = *s, end = *e;
253 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
254
255 // Get our special link tag
256 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
257
258 // Get rid of punctuation from beginning and end.
259 // Might want to move this to au_check_range if an improved link checking doesn't
260 // use some intelligent punctuation checking itself (beware of undesired iter modifications).
261 if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
262 gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
263
264 gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
265 gtk_text_iter_forward_char(&end);
266
267 gchar* text = gtk_text_iter_get_text( &start, &end );
268 size_t len = strlen(text), prefix_len;
269 size_t n;
270
271 for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
272 {
273 prefix_len = strlen(URIPrefixes[n]);
274 if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
275 break;
276 }
277
278 if(n < WXSIZEOF(URIPrefixes))
279 {
280 gulong signal_id = g_signal_handler_find(buffer,
281 (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
282 0, 0, NULL,
283 (gpointer)au_apply_tag_callback, NULL);
284
285 g_signal_handler_block(buffer, signal_id);
286 gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
287 g_signal_handler_unblock(buffer, signal_id);
288 }
289 }
290
291 static void
292 au_check_range(GtkTextIter *s,
293 GtkTextIter *range_end)
294 {
295 GtkTextIter range_start = *s;
296 GtkTextIter word_end;
297 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
298 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
299
300 gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
301
302 if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
303 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
304
305 while(!gtk_text_iter_equal(&range_start, range_end))
306 {
307 word_end = range_start;
308 gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
309
310 // Now we should have a word delimited by range_start and word_end, correct link tags
311 au_check_word(&range_start, &word_end);
312
313 range_start = word_end;
314 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
315 }
316 }
317
318 //-----------------------------------------------------------------------------
319 // "insert-text" for GtkTextBuffer
320 //-----------------------------------------------------------------------------
321
322 static void
323 au_insert_text_callback(GtkTextBuffer *buffer,
324 GtkTextIter *end,
325 gchar *text,
326 gint len,
327 wxTextCtrl *win)
328 {
329 if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
330 return;
331
332 GtkTextIter start = *end;
333 gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
334
335 GtkTextIter line_start = start;
336 GtkTextIter line_end = *end;
337 GtkTextIter words_start = start;
338 GtkTextIter words_end = *end;
339
340 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
341 gtk_text_iter_forward_to_line_end(&line_end);
342 gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
343 gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
344
345 au_check_range(&words_start, &words_end);
346 }
347
348 //-----------------------------------------------------------------------------
349 // "delete-range" for GtkTextBuffer
350 //-----------------------------------------------------------------------------
351
352 static void
353 au_delete_range_callback(GtkTextBuffer *buffer,
354 GtkTextIter *start,
355 GtkTextIter *end,
356 wxTextCtrl *win)
357 {
358 if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
359 return;
360
361 GtkTextIter line_start = *start, line_end = *end;
362
363 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
364 gtk_text_iter_forward_to_line_end(&line_end);
365 gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
366 gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
367
368 au_check_range(start, end);
369 }
370
371
372 #endif
373
374 //-----------------------------------------------------------------------------
375 // "changed"
376 //-----------------------------------------------------------------------------
377
378 static void
379 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
380 {
381 if ( win->IgnoreTextUpdate() )
382 return;
383
384 if (!win->m_hasVMT) return;
385
386 if (g_isIdle)
387 wxapp_install_idle_handler();
388
389 win->SetModified();
390 #ifndef __WXGTK20__
391 win->UpdateFontIfNeeded();
392 #endif // !__WXGTK20__
393
394 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
395 event.SetEventObject( win );
396 win->GetEventHandler()->ProcessEvent( event );
397 }
398
399 //-----------------------------------------------------------------------------
400 // "expose_event" from scrolled window and textview
401 //-----------------------------------------------------------------------------
402
403 #ifdef __WXGTK20__
404 static gboolean
405 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
406 {
407 return TRUE;
408 }
409 #endif
410
411 //-----------------------------------------------------------------------------
412 // "changed" from vertical scrollbar
413 //-----------------------------------------------------------------------------
414
415 #ifndef __WXGTK20__
416 static void
417 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
418 {
419 if (!win->m_hasVMT) return;
420
421 if (g_isIdle)
422 wxapp_install_idle_handler();
423
424 win->CalculateScrollbar();
425 }
426 #endif
427
428 // ----------------------------------------------------------------------------
429 // redraw callback for multiline text
430 // ----------------------------------------------------------------------------
431
432 #ifndef __WXGTK20__
433
434 // redrawing a GtkText from inside a wxYield() call results in crashes (the
435 // text sample shows it in its "Add lines" command which shows wxProgressDialog
436 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
437 // don't do anything if we're inside wxYield()
438
439 extern bool wxIsInsideYield;
440
441 extern "C" {
442 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
443 }
444
445 static GtkDrawCallback gs_gtk_text_draw = NULL;
446
447 extern "C"
448 void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
449 {
450 if ( !wxIsInsideYield )
451 {
452 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
453 _T("infinite recursion in wxgtk_text_draw aborted") );
454
455 gs_gtk_text_draw(widget, rect);
456 }
457 }
458
459 #endif // __WXGTK20__
460
461 //-----------------------------------------------------------------------------
462 // wxTextCtrl
463 //-----------------------------------------------------------------------------
464
465 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
466
467 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
468 EVT_CHAR(wxTextCtrl::OnChar)
469
470 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
471 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
472 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
473 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
474 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
475
476 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
477 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
478 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
479 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
480 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
481
482 #ifdef __WXGTK20__
483 // wxTE_AUTO_URL wxTextUrl support. Currently only creates
484 // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
485 EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
486 EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
487 EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
488 EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
489 EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
490 EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
491 EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
492 #endif
493 END_EVENT_TABLE()
494
495 void wxTextCtrl::Init()
496 {
497 m_ignoreNextUpdate =
498 m_modified = false;
499 SetUpdateFont(false);
500 m_text =
501 m_vScrollbar = (GtkWidget *)NULL;
502 #ifdef __WXGTK20__
503 m_frozenness = 0;
504 m_gdkHandCursor = NULL;
505 m_gdkXTermCursor = NULL;
506 #endif
507 }
508
509 wxTextCtrl::~wxTextCtrl()
510 {
511 #ifdef __WXGTK20__
512 if(m_gdkHandCursor)
513 gdk_cursor_unref(m_gdkHandCursor);
514 if(m_gdkXTermCursor)
515 gdk_cursor_unref(m_gdkXTermCursor);
516 #endif
517 }
518
519 wxTextCtrl::wxTextCtrl( wxWindow *parent,
520 wxWindowID id,
521 const wxString &value,
522 const wxPoint &pos,
523 const wxSize &size,
524 long style,
525 const wxValidator& validator,
526 const wxString &name )
527 {
528 Init();
529
530 Create( parent, id, value, pos, size, style, validator, name );
531 }
532
533 bool wxTextCtrl::Create( wxWindow *parent,
534 wxWindowID id,
535 const wxString &value,
536 const wxPoint &pos,
537 const wxSize &size,
538 long style,
539 const wxValidator& validator,
540 const wxString &name )
541 {
542 m_needParent = true;
543 m_acceptsFocus = true;
544
545 if (!PreCreation( parent, pos, size ) ||
546 !CreateBase( parent, id, pos, size, style, validator, name ))
547 {
548 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
549 return false;
550 }
551
552
553 m_vScrollbarVisible = false;
554
555 bool multi_line = (style & wxTE_MULTILINE) != 0;
556
557 if (multi_line)
558 {
559 #ifdef __WXGTK20__
560 // Create view
561 m_text = gtk_text_view_new();
562
563 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
564
565 // create scrolled window
566 m_widget = gtk_scrolled_window_new( NULL, NULL );
567 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
568 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
569
570 // Insert view into scrolled window
571 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
572
573 // Global settings which can be overridden by tags, I guess.
574 if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
575 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
576 else
577 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
578
579 if (!HasFlag(wxNO_BORDER))
580 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
581
582 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
583
584 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
585 #else
586 // create our control ...
587 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
588
589 // ... and put into the upper left hand corner of the table
590 bool bHasHScrollbar = false;
591 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
592 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
593 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
594 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
595 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
596 0, 0);
597
598 // always wrap words
599 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
600
601 // finally, put the vertical scrollbar in the upper right corner
602 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
603 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
604 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
605 GTK_FILL,
606 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
607 0, 0);
608 #endif
609 }
610 else
611 {
612 // a single-line text control: no need for scrollbars
613 m_widget =
614 m_text = gtk_entry_new();
615
616 #ifdef __WXGTK20__
617 if (style & wxNO_BORDER)
618 g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
619 #endif
620 }
621
622 m_parent->DoAddChild( this );
623
624 m_focusWidget = m_text;
625
626 PostCreation(size);
627
628 if (multi_line)
629 gtk_widget_show(m_text);
630
631 #ifndef __WXGTK20__
632 if (multi_line)
633 {
634 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
635 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
636
637 // only initialize gs_gtk_text_draw once, starting from the next the
638 // klass::draw will already be wxgtk_text_draw
639 if ( !gs_gtk_text_draw )
640 {
641 GtkDrawCallback&
642 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
643
644 gs_gtk_text_draw = draw;
645
646 draw = wxgtk_text_draw;
647 }
648 }
649 #endif // GTK+ 1.x
650
651 if (!value.empty())
652 {
653 #ifdef __WXGTK20__
654 SetValue( value );
655 #else
656
657 #if !GTK_CHECK_VERSION(1, 2, 0)
658 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
659 // gtk_editable_insert_text()
660 gtk_widget_realize(m_text);
661 #endif // GTK 1.0
662
663 gint tmp = 0;
664 #if wxUSE_UNICODE
665 wxWX2MBbuf val = value.mbc_str();
666 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
667 #else
668 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
669 #endif
670
671 if (multi_line)
672 {
673 // Bring editable's cursor uptodate. Bug in GTK.
674 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
675 }
676
677 #endif
678 }
679
680 if (style & wxTE_PASSWORD)
681 {
682 if (!multi_line)
683 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
684 }
685
686 if (style & wxTE_READONLY)
687 {
688 if (!multi_line)
689 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
690 #ifdef __WXGTK20__
691 else
692 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
693 #else
694 }
695 else
696 {
697 if (multi_line)
698 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
699 #endif
700 }
701
702 #ifdef __WXGTK20__
703 if (multi_line)
704 {
705 if (style & wxTE_RIGHT)
706 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
707 else if (style & wxTE_CENTRE)
708 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
709 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
710 }
711 else
712 {
713 #ifdef __WXGTK24__
714 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
715 if (!gtk_check_version(2,4,0))
716 {
717 if (style & wxTE_RIGHT)
718 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
719 else if (style & wxTE_CENTRE)
720 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
721 }
722 #endif
723 }
724 #endif // __WXGTK20__
725
726 // We want to be notified about text changes.
727 #ifdef __WXGTK20__
728 if (multi_line)
729 {
730 g_signal_connect( G_OBJECT(m_buffer), "changed",
731 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
732
733 // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
734 if (style & wxTE_AUTO_URL)
735 {
736 GtkTextIter start, end;
737 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
738 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
739
740 // We create our wxUrl tag here for slight efficiency gain - we
741 // don't have to check for the tag existance in callbacks,
742 // hereby it's guaranteed to exist.
743 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
744 "foreground", "blue",
745 "underline", PANGO_UNDERLINE_SINGLE,
746 NULL);
747
748 // Check for URLs after each text change
749 g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
750 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
751 g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
752 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
753
754 // Block all wxUrl tag applying unless we do it ourselves, in which case we
755 // block this callback temporarily. This takes care of gtk+ internal
756 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
757 // which is undesired because only a part of the URL might be copied.
758 // The insert-text signal emitted inside it will take care of newly formed
759 // or wholly copied URLs.
760 g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
761 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
762
763 // Check for URLs in the initial string passed to Create
764 gtk_text_buffer_get_start_iter(m_buffer, &start);
765 gtk_text_buffer_get_end_iter(m_buffer, &end);
766 au_check_range(&start, &end);
767 }
768 }
769 else
770 #endif
771
772 {
773 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
774 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
775 }
776
777 m_cursor = wxCursor( wxCURSOR_IBEAM );
778
779 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
780 SetDefaultStyle( attrDef );
781
782 return true;
783 }
784
785
786 void wxTextCtrl::CalculateScrollbar()
787 {
788 #ifndef __WXGTK20__
789 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
790
791 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
792
793 if (adj->upper - adj->page_size < 0.8)
794 {
795 if (m_vScrollbarVisible)
796 {
797 gtk_widget_hide( m_vScrollbar );
798 m_vScrollbarVisible = false;
799 }
800 }
801 else
802 {
803 if (!m_vScrollbarVisible)
804 {
805 gtk_widget_show( m_vScrollbar );
806 m_vScrollbarVisible = true;
807 }
808 }
809 #endif
810 }
811
812 wxString wxTextCtrl::GetValue() const
813 {
814 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
815
816 wxString tmp;
817 if (m_windowStyle & wxTE_MULTILINE)
818 {
819 #ifdef __WXGTK20__
820 GtkTextIter start;
821 gtk_text_buffer_get_start_iter( m_buffer, &start );
822 GtkTextIter end;
823 gtk_text_buffer_get_end_iter( m_buffer, &end );
824 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
825
826 #if wxUSE_UNICODE
827 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
828 #else
829 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
830 #endif
831 if ( buffer )
832 tmp = buffer;
833
834 g_free( text );
835 #else
836 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
837 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
838 tmp = text;
839 g_free( text );
840 #endif
841 }
842 else
843 {
844 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
845 }
846
847 return tmp;
848 }
849
850 void wxTextCtrl::SetValue( const wxString &value )
851 {
852 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
853
854 if (m_windowStyle & wxTE_MULTILINE)
855 {
856 #ifdef __WXGTK20__
857
858 #if wxUSE_UNICODE
859 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
860 #else
861 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
862 #endif
863 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
864 IgnoreNextTextUpdate();
865
866 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
867
868 #else
869 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
870 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
871 len = 0;
872 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
873 #endif
874 }
875 else
876 {
877 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
878 }
879
880 // GRG, Jun/2000: Changed this after a lot of discussion in
881 // the lists. wxWidgets 2.2 will have a set of flags to
882 // customize this behaviour.
883 SetInsertionPoint(0);
884
885 m_modified = false;
886 }
887
888 void wxTextCtrl::WriteText( const wxString &text )
889 {
890 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
891
892 if ( text.empty() )
893 return;
894
895 // gtk_text_changed_callback() will set m_modified to true but m_modified
896 // shouldn't be changed by the program writing to the text control itself,
897 // so save the old value and restore when we're done
898 bool oldModified = m_modified;
899
900 if ( m_windowStyle & wxTE_MULTILINE )
901 {
902 #ifdef __WXGTK20__
903
904 #if wxUSE_UNICODE
905 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
906 #else
907 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
908 #endif
909 if ( !buffer )
910 {
911 // what else can we do? at least don't crash...
912 return;
913 }
914
915 // TODO: Call whatever is needed to delete the selection.
916 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
917
918 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
919 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
920 if ( adj->value == adj->upper - adj->page_size )
921 {
922 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
923 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
924 }
925 #else // GTK 1.x
926 // After cursor movements, gtk_text_get_point() is wrong by one.
927 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
928
929 // always use m_defaultStyle, even if it is empty as otherwise
930 // resetting the style and appending some more text wouldn't work: if
931 // we don't specify the style explicitly, the old style would be used
932 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
933 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
934
935 // we called wxGtkTextInsert with correct font, no need to do anything
936 // in UpdateFontIfNeeded() any longer
937 if ( !text.empty() )
938 {
939 SetUpdateFont(false);
940 }
941
942 // Bring editable's cursor back uptodate.
943 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
944 #endif // GTK 1.x/2.0
945 }
946 else // single line
947 {
948 // First remove the selection if there is one
949 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
950
951 // This moves the cursor pos to behind the inserted text.
952 gint len = GET_EDITABLE_POS(m_text);
953
954 #ifdef __WXGTK20__
955
956 #if wxUSE_UNICODE
957 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
958 #else
959 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
960 #endif
961 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
962
963 #else
964 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
965 #endif
966
967 // Bring entry's cursor uptodate.
968 gtk_entry_set_position( GTK_ENTRY(m_text), len );
969 }
970
971 m_modified = oldModified;
972 }
973
974 void wxTextCtrl::AppendText( const wxString &text )
975 {
976 SetInsertionPointEnd();
977 WriteText( text );
978 }
979
980 wxString wxTextCtrl::GetLineText( long lineNo ) const
981 {
982 if (m_windowStyle & wxTE_MULTILINE)
983 {
984 #ifndef __WXGTK20__
985 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
986 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
987
988 if (text)
989 {
990 wxString buf(wxT(""));
991 long i;
992 int currentLine = 0;
993 for (i = 0; currentLine != lineNo && text[i]; i++ )
994 if (text[i] == '\n')
995 currentLine++;
996 // Now get the text
997 int j;
998 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
999 buf += text[i];
1000
1001 g_free( text );
1002 return buf;
1003 }
1004 else
1005 {
1006 return wxEmptyString;
1007 }
1008 #else
1009 GtkTextIter line;
1010 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1011 GtkTextIter end;
1012 gtk_text_buffer_get_end_iter(m_buffer,&end );
1013 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1014 wxString result(wxGTK_CONV_BACK(text));
1015 g_free(text);
1016 return result.BeforeFirst(wxT('\n'));
1017 #endif
1018 }
1019 else
1020 {
1021 if (lineNo == 0) return GetValue();
1022 return wxEmptyString;
1023 }
1024 }
1025
1026 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1027 {
1028 /* If you implement this, don't forget to update the documentation!
1029 * (file docs/latex/wx/text.tex) */
1030 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1031 }
1032
1033 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1034 {
1035 if ( m_windowStyle & wxTE_MULTILINE )
1036 {
1037 wxString text = GetValue();
1038
1039 // cast to prevent warning. But pos really should've been unsigned.
1040 if( (unsigned long)pos > text.Len() )
1041 return false;
1042
1043 *x=0; // First Col
1044 *y=0; // First Line
1045
1046 const wxChar* stop = text.c_str() + pos;
1047 for ( const wxChar *p = text.c_str(); p < stop; p++ )
1048 {
1049 if (*p == wxT('\n'))
1050 {
1051 (*y)++;
1052 *x=0;
1053 }
1054 else
1055 (*x)++;
1056 }
1057 }
1058 else // single line control
1059 {
1060 if ( pos <= GTK_ENTRY(m_text)->text_length )
1061 {
1062 *y = 0;
1063 *x = pos;
1064 }
1065 else
1066 {
1067 // index out of bounds
1068 return false;
1069 }
1070 }
1071
1072 return true;
1073 }
1074
1075 long wxTextCtrl::XYToPosition(long x, long y ) const
1076 {
1077 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1078
1079 long pos=0;
1080 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1081
1082 pos += x;
1083 return pos;
1084 }
1085
1086 int wxTextCtrl::GetLineLength(long lineNo) const
1087 {
1088 wxString str = GetLineText (lineNo);
1089 return (int) str.Length();
1090 }
1091
1092 int wxTextCtrl::GetNumberOfLines() const
1093 {
1094 if (m_windowStyle & wxTE_MULTILINE)
1095 {
1096 #ifdef __WXGTK20__
1097 return gtk_text_buffer_get_line_count( m_buffer );
1098 #else
1099 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1100 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1101
1102 if (text)
1103 {
1104 int currentLine = 0;
1105 for (int i = 0; i < len; i++ )
1106 {
1107 if (text[i] == '\n')
1108 currentLine++;
1109 }
1110 g_free( text );
1111
1112 // currentLine is 0 based, add 1 to get number of lines
1113 return currentLine + 1;
1114 }
1115 else
1116 {
1117 return 0;
1118 }
1119 #endif
1120 }
1121 else
1122 {
1123 return 1;
1124 }
1125 }
1126
1127 void wxTextCtrl::SetInsertionPoint( long pos )
1128 {
1129 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1130
1131 if ( IsMultiLine() )
1132 {
1133 #ifdef __WXGTK20__
1134 GtkTextIter iter;
1135 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1136 gtk_text_buffer_place_cursor( m_buffer, &iter );
1137 gtk_text_view_scroll_mark_onscreen
1138 (
1139 GTK_TEXT_VIEW(m_text),
1140 gtk_text_buffer_get_insert( m_buffer )
1141 );
1142 #else // GTK+ 1.x
1143 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1144 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1145
1146 /* we fake a set_point by inserting and deleting. as the user
1147 isn't supposed to get to know about this non-sense, we
1148 disconnect so that no events are sent to the user program. */
1149
1150 gint tmp = (gint)pos;
1151 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1152 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1153
1154 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1155 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1156
1157 // bring editable's cursor uptodate. Bug in GTK.
1158 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1159 #endif // GTK+ 2/1
1160 }
1161 else
1162 {
1163 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1164
1165 // Bring editable's cursor uptodate. Bug in GTK.
1166 SET_EDITABLE_POS(m_text, (guint32)pos);
1167 }
1168 }
1169
1170 void wxTextCtrl::SetInsertionPointEnd()
1171 {
1172 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1173
1174 if (m_windowStyle & wxTE_MULTILINE)
1175 {
1176 #ifdef __WXGTK20__
1177 GtkTextIter end;
1178 gtk_text_buffer_get_end_iter( m_buffer, &end );
1179 gtk_text_buffer_place_cursor( m_buffer, &end );
1180 #else
1181 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1182 #endif
1183 }
1184 else
1185 {
1186 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1187 }
1188 }
1189
1190 void wxTextCtrl::SetEditable( bool editable )
1191 {
1192 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1193
1194 if (m_windowStyle & wxTE_MULTILINE)
1195 {
1196 #ifdef __WXGTK20__
1197 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1198 #else
1199 gtk_text_set_editable( GTK_TEXT(m_text), editable );
1200 #endif
1201 }
1202 else
1203 {
1204 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1205 }
1206 }
1207
1208 bool wxTextCtrl::Enable( bool enable )
1209 {
1210 if (!wxWindowBase::Enable(enable))
1211 {
1212 // nothing to do
1213 return false;
1214 }
1215
1216 if (m_windowStyle & wxTE_MULTILINE)
1217 {
1218 #ifdef __WXGTK20__
1219 SetEditable( enable );
1220 #else
1221 gtk_text_set_editable( GTK_TEXT(m_text), enable );
1222 OnParentEnable(enable);
1223 #endif
1224 }
1225 else
1226 {
1227 gtk_widget_set_sensitive( m_text, enable );
1228 }
1229
1230 return true;
1231 }
1232
1233 // wxGTK-specific: called recursively by Enable,
1234 // to give widgets an oppprtunity to correct their colours after they
1235 // have been changed by Enable
1236 void wxTextCtrl::OnParentEnable( bool enable )
1237 {
1238 // If we have a custom background colour, we use this colour in both
1239 // disabled and enabled mode, or we end up with a different colour under the
1240 // text.
1241 wxColour oldColour = GetBackgroundColour();
1242 if (oldColour.Ok())
1243 {
1244 // Need to set twice or it'll optimize the useful stuff out
1245 if (oldColour == * wxWHITE)
1246 SetBackgroundColour(*wxBLACK);
1247 else
1248 SetBackgroundColour(*wxWHITE);
1249 SetBackgroundColour(oldColour);
1250 }
1251 }
1252
1253 void wxTextCtrl::MarkDirty()
1254 {
1255 m_modified = true;
1256 }
1257
1258 void wxTextCtrl::DiscardEdits()
1259 {
1260 m_modified = false;
1261 }
1262
1263 // ----------------------------------------------------------------------------
1264 // max text length support
1265 // ----------------------------------------------------------------------------
1266
1267 void wxTextCtrl::IgnoreNextTextUpdate()
1268 {
1269 m_ignoreNextUpdate = true;
1270 }
1271
1272 bool wxTextCtrl::IgnoreTextUpdate()
1273 {
1274 if ( m_ignoreNextUpdate )
1275 {
1276 m_ignoreNextUpdate = false;
1277
1278 return true;
1279 }
1280
1281 return false;
1282 }
1283
1284 void wxTextCtrl::SetMaxLength(unsigned long len)
1285 {
1286 if ( !HasFlag(wxTE_MULTILINE) )
1287 {
1288 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1289
1290 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1291 // we had tried to enter more text than allowed by max text length and
1292 // the text wasn't really changed
1293 //
1294 // to detect this and generate TEXT_MAXLEN event instead of
1295 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1296 //
1297 // when max len is set to 0 we disconnect our handler as it means that
1298 // we shouldn't check anything any more
1299 if ( len )
1300 {
1301 gtk_signal_connect( GTK_OBJECT(m_text),
1302 "insert_text",
1303 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1304 (gpointer)this);
1305 }
1306 else // no checking
1307 {
1308 gtk_signal_disconnect_by_func
1309 (
1310 GTK_OBJECT(m_text),
1311 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1312 (gpointer)this
1313 );
1314 }
1315 }
1316 }
1317
1318 void wxTextCtrl::SetSelection( long from, long to )
1319 {
1320 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1321
1322 if (from == -1 && to == -1)
1323 {
1324 from = 0;
1325 to = GetValue().Length();
1326 }
1327
1328 #ifndef __WXGTK20__
1329 if ( (m_windowStyle & wxTE_MULTILINE) &&
1330 !GTK_TEXT(m_text)->line_start_cache )
1331 {
1332 // tell the programmer that it didn't work
1333 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1334 return;
1335 }
1336 #endif
1337
1338 if (m_windowStyle & wxTE_MULTILINE)
1339 {
1340 #ifdef __WXGTK20__
1341 GtkTextIter fromi, toi;
1342 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1343 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1344
1345 gtk_text_buffer_place_cursor( m_buffer, &toi );
1346 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1347 #else
1348 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1349 #endif
1350 }
1351 else
1352 {
1353 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1354 }
1355 }
1356
1357 void wxTextCtrl::ShowPosition( long pos )
1358 {
1359 if (m_windowStyle & wxTE_MULTILINE)
1360 {
1361 #ifdef __WXGTK20__
1362 GtkTextIter iter;
1363 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1364 gtk_text_iter_set_offset( &iter, pos );
1365 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1366 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1367 #else // GTK 1.x
1368 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1369 float totalLines = (float) GetNumberOfLines();
1370 long posX;
1371 long posY;
1372 PositionToXY(pos, &posX, &posY);
1373 float posLine = (float) posY;
1374 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1375 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1376 #endif // GTK 1.x/2.x
1377 }
1378 }
1379
1380 #ifdef __WXGTK20__
1381
1382 wxTextCtrlHitTestResult
1383 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1384 {
1385 if ( !IsMultiLine() )
1386 {
1387 // not supported
1388 return wxTE_HT_UNKNOWN;
1389 }
1390
1391 int x, y;
1392 gtk_text_view_window_to_buffer_coords
1393 (
1394 GTK_TEXT_VIEW(m_text),
1395 GTK_TEXT_WINDOW_TEXT,
1396 pt.x, pt.y,
1397 &x, &y
1398 );
1399
1400 GtkTextIter iter;
1401 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1402 if ( pos )
1403 *pos = gtk_text_iter_get_offset(&iter);
1404
1405 return wxTE_HT_ON_TEXT;
1406 }
1407
1408 #endif // __WXGTK20__
1409
1410 long wxTextCtrl::GetInsertionPoint() const
1411 {
1412 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1413
1414 #ifdef __WXGTK20__
1415 if (m_windowStyle & wxTE_MULTILINE)
1416 {
1417 // There is no direct accessor for the cursor, but
1418 // internally, the cursor is the "mark" called
1419 // "insert" in the text view's btree structure.
1420
1421 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1422 GtkTextIter cursor;
1423 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1424
1425 return gtk_text_iter_get_offset( &cursor );
1426 }
1427 else
1428 #endif
1429 {
1430 return (long) GET_EDITABLE_POS(m_text);
1431 }
1432 }
1433
1434 wxTextPos wxTextCtrl::GetLastPosition() const
1435 {
1436 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1437
1438 int pos = 0;
1439
1440 if (m_windowStyle & wxTE_MULTILINE)
1441 {
1442 #ifdef __WXGTK20__
1443 GtkTextIter end;
1444 gtk_text_buffer_get_end_iter( m_buffer, &end );
1445
1446 pos = gtk_text_iter_get_offset( &end );
1447 #else
1448 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1449 #endif
1450 }
1451 else
1452 {
1453 pos = GTK_ENTRY(m_text)->text_length;
1454 }
1455
1456 return (long)pos;
1457 }
1458
1459 void wxTextCtrl::Remove( long from, long to )
1460 {
1461 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1462
1463 #ifdef __WXGTK20__
1464 if (m_windowStyle & wxTE_MULTILINE)
1465 {
1466 GtkTextIter fromi, toi;
1467 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1468 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1469
1470 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1471 }
1472 else // single line
1473 #endif
1474 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1475 }
1476
1477 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1478 {
1479 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1480
1481 Remove( from, to );
1482
1483 if (!value.empty())
1484 {
1485 #ifdef __WXGTK20__
1486 SetInsertionPoint( from );
1487 WriteText( value );
1488 #else // GTK 1.x
1489 gint pos = (gint)from;
1490 #if wxUSE_UNICODE
1491 wxWX2MBbuf buf = value.mbc_str();
1492 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1493 #else
1494 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1495 #endif // wxUSE_UNICODE
1496 #endif // GTK 1.x/2.x
1497 }
1498 }
1499
1500 void wxTextCtrl::Cut()
1501 {
1502 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1503
1504 #ifdef __WXGTK20__
1505 if (m_windowStyle & wxTE_MULTILINE)
1506 g_signal_emit_by_name(m_text, "cut-clipboard");
1507 else
1508 #endif
1509 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1510 }
1511
1512 void wxTextCtrl::Copy()
1513 {
1514 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1515
1516 #ifdef __WXGTK20__
1517 if (m_windowStyle & wxTE_MULTILINE)
1518 g_signal_emit_by_name(m_text, "copy-clipboard");
1519 else
1520 #endif
1521 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1522 }
1523
1524 void wxTextCtrl::Paste()
1525 {
1526 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1527
1528 #ifdef __WXGTK20__
1529 if (m_windowStyle & wxTE_MULTILINE)
1530 g_signal_emit_by_name(m_text, "paste-clipboard");
1531 else
1532 #endif
1533 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1534 }
1535
1536 // Undo/redo
1537 void wxTextCtrl::Undo()
1538 {
1539 // TODO
1540 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1541 }
1542
1543 void wxTextCtrl::Redo()
1544 {
1545 // TODO
1546 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1547 }
1548
1549 bool wxTextCtrl::CanUndo() const
1550 {
1551 // TODO
1552 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1553 return false;
1554 }
1555
1556 bool wxTextCtrl::CanRedo() const
1557 {
1558 // TODO
1559 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1560 return false;
1561 }
1562
1563 // If the return values from and to are the same, there is no
1564 // selection.
1565 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1566 {
1567 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1568
1569 gint from = -1;
1570 gint to = -1;
1571 bool haveSelection = false;
1572
1573 #ifdef __WXGTK20__
1574 if (m_windowStyle & wxTE_MULTILINE)
1575 {
1576 GtkTextIter ifrom, ito;
1577 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1578 {
1579 haveSelection = true;
1580 from = gtk_text_iter_get_offset(&ifrom);
1581 to = gtk_text_iter_get_offset(&ito);
1582 }
1583 }
1584 else // not multi-line
1585 {
1586 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1587 &from, &to) )
1588 {
1589 haveSelection = true;
1590 }
1591 }
1592 #else // not GTK2
1593 if ( (GTK_EDITABLE(m_text)->has_selection) )
1594 {
1595 haveSelection = true;
1596 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1597 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1598 }
1599 #endif
1600
1601 if (! haveSelection )
1602 from = to = GetInsertionPoint();
1603
1604 if ( from > to )
1605 {
1606 // exchange them to be compatible with wxMSW
1607 gint tmp = from;
1608 from = to;
1609 to = tmp;
1610 }
1611
1612 if ( fromOut )
1613 *fromOut = from;
1614 if ( toOut )
1615 *toOut = to;
1616 }
1617
1618
1619 bool wxTextCtrl::IsEditable() const
1620 {
1621 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1622
1623 #ifdef __WXGTK20__
1624 if (m_windowStyle & wxTE_MULTILINE)
1625 {
1626 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1627 }
1628 else
1629 {
1630 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1631 }
1632 #else
1633 return GTK_EDITABLE(m_text)->editable;
1634 #endif
1635 }
1636
1637 bool wxTextCtrl::IsModified() const
1638 {
1639 return m_modified;
1640 }
1641
1642 void wxTextCtrl::Clear()
1643 {
1644 SetValue( wxT("") );
1645 }
1646
1647 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1648 {
1649 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1650
1651 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1652 {
1653 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1654 event.SetEventObject(this);
1655 event.SetString(GetValue());
1656 if (GetEventHandler()->ProcessEvent(event)) return;
1657 }
1658
1659 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1660 {
1661 // This will invoke the dialog default action, such
1662 // as the clicking the default button.
1663
1664 wxWindow *top_frame = m_parent;
1665 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1666 top_frame = top_frame->GetParent();
1667
1668 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1669 {
1670 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1671
1672 if (window->default_widget)
1673 {
1674 gtk_widget_activate (window->default_widget);
1675 return;
1676 }
1677 }
1678 }
1679
1680 key_event.Skip();
1681 }
1682
1683 GtkWidget* wxTextCtrl::GetConnectWidget()
1684 {
1685 return GTK_WIDGET(m_text);
1686 }
1687
1688 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1689 {
1690 if (m_windowStyle & wxTE_MULTILINE)
1691 {
1692 #ifdef __WXGTK20__
1693 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1694 #else
1695 return (window == GTK_TEXT(m_text)->text_area);
1696 #endif
1697 }
1698 else
1699 {
1700 return (window == GTK_ENTRY(m_text)->text_area);
1701 }
1702 }
1703
1704 // the font will change for subsequent text insertiongs
1705 bool wxTextCtrl::SetFont( const wxFont &font )
1706 {
1707 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1708
1709 if ( !wxTextCtrlBase::SetFont(font) )
1710 {
1711 // font didn't change, nothing to do
1712 return false;
1713 }
1714
1715 if ( m_windowStyle & wxTE_MULTILINE )
1716 {
1717 SetUpdateFont(true);
1718
1719 m_defaultStyle.SetFont(font);
1720
1721 ChangeFontGlobally();
1722 }
1723
1724 return true;
1725 }
1726
1727 void wxTextCtrl::ChangeFontGlobally()
1728 {
1729 // this method is very inefficient and hence should be called as rarely as
1730 // possible!
1731 //
1732 // TODO: it can be implemented much more efficiently for GTK2
1733 #ifndef __WXGTK20__
1734 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1735
1736 _T("shouldn't be called for single line controls") );
1737 #else
1738 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1739 _T("shouldn't be called for single line controls") );
1740 #endif
1741
1742 wxString value = GetValue();
1743 if ( !value.empty() )
1744 {
1745 SetUpdateFont(false);
1746
1747 Clear();
1748 AppendText(value);
1749 }
1750 }
1751
1752 #ifndef __WXGTK20__
1753
1754 void wxTextCtrl::UpdateFontIfNeeded()
1755 {
1756 if ( m_updateFont )
1757 ChangeFontGlobally();
1758 }
1759
1760 #endif // GTK+ 1.x
1761
1762 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1763 {
1764 if ( !wxControl::SetForegroundColour(colour) )
1765 return false;
1766
1767 // update default fg colour too
1768 m_defaultStyle.SetTextColour(colour);
1769
1770 return true;
1771 }
1772
1773 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1774 {
1775 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1776
1777 if ( !wxControl::SetBackgroundColour( colour ) )
1778 return false;
1779
1780 #ifndef __WXGTK20__
1781 if (!m_widget->window)
1782 return false;
1783 #endif
1784
1785 if (!m_backgroundColour.Ok())
1786 return false;
1787
1788 if (m_windowStyle & wxTE_MULTILINE)
1789 {
1790 #ifndef __WXGTK20__
1791 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1792 if (!window)
1793 return false;
1794 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1795 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1796 gdk_window_clear( window );
1797 #endif
1798 }
1799
1800 // change active background color too
1801 m_defaultStyle.SetBackgroundColour( colour );
1802
1803 return true;
1804 }
1805
1806 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1807 {
1808 if ( m_windowStyle & wxTE_MULTILINE )
1809 {
1810 if ( style.IsDefault() )
1811 {
1812 // nothing to do
1813 return true;
1814 }
1815 #ifdef __WXGTK20__
1816 gint l = gtk_text_buffer_get_char_count( m_buffer );
1817
1818 wxCHECK_MSG( start >= 0 && end <= l, false,
1819 _T("invalid range in wxTextCtrl::SetStyle") );
1820
1821 GtkTextIter starti, endi;
1822 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1823 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1824
1825 // use the attributes from style which are set in it and fall back
1826 // first to the default style and then to the text control default
1827 // colours for the others
1828 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1829
1830 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1831
1832 return true;
1833 #else
1834 // VERY dirty way to do that - removes the required text and re-adds it
1835 // with styling (FIXME)
1836
1837 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1838
1839 wxCHECK_MSG( start >= 0 && end <= l, false,
1840 _T("invalid range in wxTextCtrl::SetStyle") );
1841
1842 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1843 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1844 wxString tmp(text,*wxConvCurrent);
1845 g_free( text );
1846
1847 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1848 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1849
1850 #if wxUSE_UNICODE
1851 wxWX2MBbuf buf = tmp.mbc_str();
1852 const char *txt = buf;
1853 size_t txtlen = strlen(buf);
1854 #else
1855 const char *txt = tmp;
1856 size_t txtlen = tmp.length();
1857 #endif
1858
1859 // use the attributes from style which are set in it and fall back
1860 // first to the default style and then to the text control default
1861 // colours for the others
1862 wxGtkTextInsert(m_text,
1863 wxTextAttr::Combine(style, m_defaultStyle, this),
1864 txt,
1865 txtlen);
1866
1867 /* does not seem to help under GTK+ 1.2 !!!
1868 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1869 SetInsertionPoint( old_pos );
1870 #endif
1871 return true;
1872 }
1873 else // singe line
1874 {
1875 // cannot do this for GTK+'s Entry widget
1876 return false;
1877 }
1878 }
1879
1880 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1881 {
1882 gtk_widget_modify_style(m_text, style);
1883 }
1884
1885 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1886 {
1887 Cut();
1888 }
1889
1890 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1891 {
1892 Copy();
1893 }
1894
1895 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1896 {
1897 Paste();
1898 }
1899
1900 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1901 {
1902 Undo();
1903 }
1904
1905 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1906 {
1907 Redo();
1908 }
1909
1910 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1911 {
1912 event.Enable( CanCut() );
1913 }
1914
1915 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1916 {
1917 event.Enable( CanCopy() );
1918 }
1919
1920 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1921 {
1922 event.Enable( CanPaste() );
1923 }
1924
1925 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1926 {
1927 event.Enable( CanUndo() );
1928 }
1929
1930 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1931 {
1932 event.Enable( CanRedo() );
1933 }
1934
1935 void wxTextCtrl::OnInternalIdle()
1936 {
1937 wxCursor cursor = m_cursor;
1938 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1939
1940 if (cursor.Ok())
1941 {
1942 #ifndef __WXGTK20__
1943 GdkWindow *window = (GdkWindow*) NULL;
1944 if (HasFlag(wxTE_MULTILINE))
1945 window = GTK_TEXT(m_text)->text_area;
1946 else
1947 window = GTK_ENTRY(m_text)->text_area;
1948
1949 if (window)
1950 gdk_window_set_cursor( window, cursor.GetCursor() );
1951
1952 if (!g_globalCursor.Ok())
1953 cursor = *wxSTANDARD_CURSOR;
1954
1955 window = m_widget->window;
1956 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1957 gdk_window_set_cursor( window, cursor.GetCursor() );
1958 #endif
1959 }
1960
1961 if (g_delayedFocus == this)
1962 {
1963 if (GTK_WIDGET_REALIZED(m_widget))
1964 {
1965 gtk_widget_grab_focus( m_widget );
1966 g_delayedFocus = NULL;
1967 }
1968 }
1969
1970 if (wxUpdateUIEvent::CanUpdate(this))
1971 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1972 }
1973
1974 wxSize wxTextCtrl::DoGetBestSize() const
1975 {
1976 // FIXME should be different for multi-line controls...
1977 wxSize ret( wxControl::DoGetBestSize() );
1978 wxSize best(80, ret.y);
1979 CacheBestSize(best);
1980 return best;
1981 }
1982
1983 // ----------------------------------------------------------------------------
1984 // freeze/thaw
1985 // ----------------------------------------------------------------------------
1986
1987 void wxTextCtrl::Freeze()
1988 {
1989 if ( HasFlag(wxTE_MULTILINE) )
1990 {
1991 #ifdef __WXGTK20__
1992 if ( !m_frozenness++ )
1993 {
1994 // freeze textview updates and remove buffer
1995 g_signal_connect( G_OBJECT(m_text), "expose_event",
1996 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
1997 g_signal_connect( G_OBJECT(m_widget), "expose_event",
1998 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
1999 gtk_widget_set_sensitive(m_widget, false);
2000 g_object_ref(m_buffer);
2001 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2002 }
2003 #else
2004 gtk_text_freeze(GTK_TEXT(m_text));
2005 #endif
2006 }
2007 }
2008
2009 void wxTextCtrl::Thaw()
2010 {
2011 if ( HasFlag(wxTE_MULTILINE) )
2012 {
2013 #ifdef __WXGTK20__
2014 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2015
2016 if ( !--m_frozenness )
2017 {
2018 // Reattach buffer and thaw textview updates
2019 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2020 g_object_unref(m_buffer);
2021 gtk_widget_set_sensitive(m_widget, true);
2022 g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2023 g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2024 }
2025 #else
2026 GTK_TEXT(m_text)->vadj->value = 0.0;
2027
2028 gtk_text_thaw(GTK_TEXT(m_text));
2029 #endif
2030 }
2031 }
2032
2033 // ----------------------------------------------------------------------------
2034 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2035 // ----------------------------------------------------------------------------
2036
2037 #ifdef __WXGTK20__
2038
2039 // FIXME: when dragging on a link the sample gets an "Unknown event".
2040 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2041 // a buggy sample, or something else
2042 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2043 {
2044 event.Skip();
2045 if(!(m_windowStyle & wxTE_AUTO_URL))
2046 return;
2047
2048 gint x, y;
2049 GtkTextIter start, end;
2050 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2051 "wxUrl");
2052
2053 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2054 event.GetX(), event.GetY(), &x, &y);
2055
2056 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2057 if (!gtk_text_iter_has_tag(&end, tag))
2058 {
2059 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2060 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2061 return;
2062 }
2063
2064 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2065 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2066
2067 start = end;
2068 if(!gtk_text_iter_begins_tag(&start, tag))
2069 gtk_text_iter_backward_to_tag_toggle(&start, tag);
2070 if(!gtk_text_iter_ends_tag(&end, tag))
2071 gtk_text_iter_forward_to_tag_toggle(&end, tag);
2072
2073 // Native context menu is probably not desired on an URL.
2074 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2075 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2076 event.Skip(false);
2077
2078 wxTextUrlEvent url_event(m_windowId, event,
2079 gtk_text_iter_get_offset(&start),
2080 gtk_text_iter_get_offset(&end));
2081
2082 InitCommandEvent(url_event);
2083 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2084 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2085 GetEventHandler()->ProcessEvent(url_event);
2086 }
2087 #endif // gtk2
2088
2089 // ----------------------------------------------------------------------------
2090 // scrolling
2091 // ----------------------------------------------------------------------------
2092
2093 GtkAdjustment *wxTextCtrl::GetVAdj() const
2094 {
2095 if ( !IsMultiLine() )
2096 return NULL;
2097
2098 #ifdef __WXGTK20__
2099 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2100 #else
2101 return GTK_TEXT(m_text)->vadj;
2102 #endif
2103 }
2104
2105 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2106 {
2107 float value = adj->value + diff;
2108
2109 if ( value < 0 )
2110 value = 0;
2111
2112 float upper = adj->upper - adj->page_size;
2113 if ( value > upper )
2114 value = upper;
2115
2116 // did we noticeably change the scroll position?
2117 if ( fabs(adj->value - value) < 0.2 )
2118 {
2119 // well, this is what Robert does in wxScrollBar, so it must be good...
2120 return false;
2121 }
2122
2123 adj->value = value;
2124
2125 #ifdef __WXGTK20__
2126 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2127 #else
2128 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2129 #endif
2130
2131 return true;
2132 }
2133
2134 bool wxTextCtrl::ScrollLines(int lines)
2135 {
2136 GtkAdjustment *adj = GetVAdj();
2137 if ( !adj )
2138 return false;
2139
2140 #ifdef __WXGTK20__
2141 int diff = (int)ceil(lines*adj->step_increment);
2142 #else
2143 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2144 int diff = 10*lines;
2145 #endif
2146
2147 return DoScroll(adj, diff);
2148 }
2149
2150 bool wxTextCtrl::ScrollPages(int pages)
2151 {
2152 GtkAdjustment *adj = GetVAdj();
2153 if ( !adj )
2154 return false;
2155
2156 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2157 }
2158
2159
2160 // static
2161 wxVisualAttributes
2162 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2163 {
2164 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2165 }
wxWidgets (Impactor)