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added support for wxTE_LINEWRAP; use GTK_WRAP_WORD_CHAR for wxTE_WORDWRAP instead...
[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 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 // translate wx wrapping style to GTK+
574 if ( HasFlag( wxTE_DONTWRAP ) )
575 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
576 else if ( HasFlag( wxTE_LINEWRAP ) )
577 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_CHAR );
578 else // HasFlag(wxTE_WORDWRAP) always true as wxTE_WORDWRAP == 0
579 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD_CHAR );
580
581 if (!HasFlag(wxNO_BORDER))
582 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
583
584 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
585
586 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
587 #else // GTK+ 1
588 // create our control ...
589 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
590
591 // ... and put into the upper left hand corner of the table
592 bool bHasHScrollbar = false;
593 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
594 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
595 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
596 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
597 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
598 0, 0);
599
600 // always wrap words
601 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
602
603 // finally, put the vertical scrollbar in the upper right corner
604 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
605 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
606 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
607 GTK_FILL,
608 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
609 0, 0);
610 #endif // GTK+ 2/1
611 }
612 else
613 {
614 // a single-line text control: no need for scrollbars
615 m_widget =
616 m_text = gtk_entry_new();
617
618 #ifdef __WXGTK20__
619 if (style & wxNO_BORDER)
620 g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
621 #endif
622 }
623
624 m_parent->DoAddChild( this );
625
626 m_focusWidget = m_text;
627
628 PostCreation(size);
629
630 if (multi_line)
631 gtk_widget_show(m_text);
632
633 #ifndef __WXGTK20__
634 if (multi_line)
635 {
636 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
637 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
638
639 // only initialize gs_gtk_text_draw once, starting from the next the
640 // klass::draw will already be wxgtk_text_draw
641 if ( !gs_gtk_text_draw )
642 {
643 GtkDrawCallback&
644 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
645
646 gs_gtk_text_draw = draw;
647
648 draw = wxgtk_text_draw;
649 }
650 }
651 #endif // GTK+ 1.x
652
653 if (!value.empty())
654 {
655 #ifdef __WXGTK20__
656 SetValue( value );
657 #else
658
659 #if !GTK_CHECK_VERSION(1, 2, 0)
660 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
661 // gtk_editable_insert_text()
662 gtk_widget_realize(m_text);
663 #endif // GTK 1.0
664
665 gint tmp = 0;
666 #if wxUSE_UNICODE
667 wxWX2MBbuf val = value.mbc_str();
668 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
669 #else
670 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
671 #endif
672
673 if (multi_line)
674 {
675 // Bring editable's cursor uptodate. Bug in GTK.
676 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
677 }
678
679 #endif
680 }
681
682 if (style & wxTE_PASSWORD)
683 {
684 if (!multi_line)
685 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
686 }
687
688 if (style & wxTE_READONLY)
689 {
690 if (!multi_line)
691 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
692 #ifdef __WXGTK20__
693 else
694 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
695 #else
696 }
697 else
698 {
699 if (multi_line)
700 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
701 #endif
702 }
703
704 #ifdef __WXGTK20__
705 if (multi_line)
706 {
707 if (style & wxTE_RIGHT)
708 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
709 else if (style & wxTE_CENTRE)
710 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
711 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
712 }
713 else
714 {
715 #ifdef __WXGTK24__
716 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
717 if (!gtk_check_version(2,4,0))
718 {
719 if (style & wxTE_RIGHT)
720 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
721 else if (style & wxTE_CENTRE)
722 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
723 }
724 #endif
725 }
726 #endif // __WXGTK20__
727
728 // We want to be notified about text changes.
729 #ifdef __WXGTK20__
730 if (multi_line)
731 {
732 g_signal_connect( G_OBJECT(m_buffer), "changed",
733 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
734
735 // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
736 if (style & wxTE_AUTO_URL)
737 {
738 GtkTextIter start, end;
739 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
740 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
741
742 // We create our wxUrl tag here for slight efficiency gain - we
743 // don't have to check for the tag existance in callbacks,
744 // hereby it's guaranteed to exist.
745 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
746 "foreground", "blue",
747 "underline", PANGO_UNDERLINE_SINGLE,
748 NULL);
749
750 // Check for URLs after each text change
751 g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
752 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
753 g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
754 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
755
756 // Block all wxUrl tag applying unless we do it ourselves, in which case we
757 // block this callback temporarily. This takes care of gtk+ internal
758 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
759 // which is undesired because only a part of the URL might be copied.
760 // The insert-text signal emitted inside it will take care of newly formed
761 // or wholly copied URLs.
762 g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
763 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
764
765 // Check for URLs in the initial string passed to Create
766 gtk_text_buffer_get_start_iter(m_buffer, &start);
767 gtk_text_buffer_get_end_iter(m_buffer, &end);
768 au_check_range(&start, &end);
769 }
770 }
771 else
772 #endif
773
774 {
775 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
776 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
777 }
778
779 m_cursor = wxCursor( wxCURSOR_IBEAM );
780
781 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
782 SetDefaultStyle( attrDef );
783
784 return true;
785 }
786
787
788 void wxTextCtrl::CalculateScrollbar()
789 {
790 #ifndef __WXGTK20__
791 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
792
793 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
794
795 if (adj->upper - adj->page_size < 0.8)
796 {
797 if (m_vScrollbarVisible)
798 {
799 gtk_widget_hide( m_vScrollbar );
800 m_vScrollbarVisible = false;
801 }
802 }
803 else
804 {
805 if (!m_vScrollbarVisible)
806 {
807 gtk_widget_show( m_vScrollbar );
808 m_vScrollbarVisible = true;
809 }
810 }
811 #endif
812 }
813
814 wxString wxTextCtrl::GetValue() const
815 {
816 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
817
818 wxString tmp;
819 if (m_windowStyle & wxTE_MULTILINE)
820 {
821 #ifdef __WXGTK20__
822 GtkTextIter start;
823 gtk_text_buffer_get_start_iter( m_buffer, &start );
824 GtkTextIter end;
825 gtk_text_buffer_get_end_iter( m_buffer, &end );
826 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
827
828 #if wxUSE_UNICODE
829 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
830 #else
831 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
832 #endif
833 if ( buffer )
834 tmp = buffer;
835
836 g_free( text );
837 #else
838 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
839 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
840 tmp = text;
841 g_free( text );
842 #endif
843 }
844 else
845 {
846 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
847 }
848
849 return tmp;
850 }
851
852 void wxTextCtrl::SetValue( const wxString &value )
853 {
854 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
855
856 if (m_windowStyle & wxTE_MULTILINE)
857 {
858 #ifdef __WXGTK20__
859
860 #if wxUSE_UNICODE
861 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
862 #else
863 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
864 #endif
865 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
866 IgnoreNextTextUpdate();
867
868 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
869
870 #else
871 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
872 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
873 len = 0;
874 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
875 #endif
876 }
877 else
878 {
879 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
880 }
881
882 // GRG, Jun/2000: Changed this after a lot of discussion in
883 // the lists. wxWidgets 2.2 will have a set of flags to
884 // customize this behaviour.
885 SetInsertionPoint(0);
886
887 m_modified = false;
888 }
889
890 void wxTextCtrl::WriteText( const wxString &text )
891 {
892 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
893
894 if ( text.empty() )
895 return;
896
897 // gtk_text_changed_callback() will set m_modified to true but m_modified
898 // shouldn't be changed by the program writing to the text control itself,
899 // so save the old value and restore when we're done
900 bool oldModified = m_modified;
901
902 if ( m_windowStyle & wxTE_MULTILINE )
903 {
904 #ifdef __WXGTK20__
905
906 #if wxUSE_UNICODE
907 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
908 #else
909 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
910 #endif
911 if ( !buffer )
912 {
913 // what else can we do? at least don't crash...
914 return;
915 }
916
917 // TODO: Call whatever is needed to delete the selection.
918 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
919
920 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
921 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
922 if ( adj->value == adj->upper - adj->page_size )
923 {
924 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
925 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
926 }
927 #else // GTK 1.x
928 // After cursor movements, gtk_text_get_point() is wrong by one.
929 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
930
931 // always use m_defaultStyle, even if it is empty as otherwise
932 // resetting the style and appending some more text wouldn't work: if
933 // we don't specify the style explicitly, the old style would be used
934 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
935 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
936
937 // we called wxGtkTextInsert with correct font, no need to do anything
938 // in UpdateFontIfNeeded() any longer
939 if ( !text.empty() )
940 {
941 SetUpdateFont(false);
942 }
943
944 // Bring editable's cursor back uptodate.
945 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
946 #endif // GTK 1.x/2.0
947 }
948 else // single line
949 {
950 // First remove the selection if there is one
951 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
952
953 // This moves the cursor pos to behind the inserted text.
954 gint len = GET_EDITABLE_POS(m_text);
955
956 #ifdef __WXGTK20__
957
958 #if wxUSE_UNICODE
959 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
960 #else
961 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
962 #endif
963 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
964
965 #else
966 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
967 #endif
968
969 // Bring entry's cursor uptodate.
970 gtk_entry_set_position( GTK_ENTRY(m_text), len );
971 }
972
973 m_modified = oldModified;
974 }
975
976 void wxTextCtrl::AppendText( const wxString &text )
977 {
978 SetInsertionPointEnd();
979 WriteText( text );
980 }
981
982 wxString wxTextCtrl::GetLineText( long lineNo ) const
983 {
984 if (m_windowStyle & wxTE_MULTILINE)
985 {
986 #ifndef __WXGTK20__
987 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
988 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
989
990 if (text)
991 {
992 wxString buf(wxT(""));
993 long i;
994 int currentLine = 0;
995 for (i = 0; currentLine != lineNo && text[i]; i++ )
996 if (text[i] == '\n')
997 currentLine++;
998 // Now get the text
999 int j;
1000 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1001 buf += text[i];
1002
1003 g_free( text );
1004 return buf;
1005 }
1006 else
1007 {
1008 return wxEmptyString;
1009 }
1010 #else
1011 GtkTextIter line;
1012 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1013 GtkTextIter end;
1014 gtk_text_buffer_get_end_iter(m_buffer,&end );
1015 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1016 wxString result(wxGTK_CONV_BACK(text));
1017 g_free(text);
1018 return result.BeforeFirst(wxT('\n'));
1019 #endif
1020 }
1021 else
1022 {
1023 if (lineNo == 0) return GetValue();
1024 return wxEmptyString;
1025 }
1026 }
1027
1028 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1029 {
1030 /* If you implement this, don't forget to update the documentation!
1031 * (file docs/latex/wx/text.tex) */
1032 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1033 }
1034
1035 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1036 {
1037 if ( m_windowStyle & wxTE_MULTILINE )
1038 {
1039 wxString text = GetValue();
1040
1041 // cast to prevent warning. But pos really should've been unsigned.
1042 if( (unsigned long)pos > text.Len() )
1043 return false;
1044
1045 *x=0; // First Col
1046 *y=0; // First Line
1047
1048 const wxChar* stop = text.c_str() + pos;
1049 for ( const wxChar *p = text.c_str(); p < stop; p++ )
1050 {
1051 if (*p == wxT('\n'))
1052 {
1053 (*y)++;
1054 *x=0;
1055 }
1056 else
1057 (*x)++;
1058 }
1059 }
1060 else // single line control
1061 {
1062 if ( pos <= GTK_ENTRY(m_text)->text_length )
1063 {
1064 *y = 0;
1065 *x = pos;
1066 }
1067 else
1068 {
1069 // index out of bounds
1070 return false;
1071 }
1072 }
1073
1074 return true;
1075 }
1076
1077 long wxTextCtrl::XYToPosition(long x, long y ) const
1078 {
1079 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1080
1081 long pos=0;
1082 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1083
1084 pos += x;
1085 return pos;
1086 }
1087
1088 int wxTextCtrl::GetLineLength(long lineNo) const
1089 {
1090 wxString str = GetLineText (lineNo);
1091 return (int) str.Length();
1092 }
1093
1094 int wxTextCtrl::GetNumberOfLines() const
1095 {
1096 if (m_windowStyle & wxTE_MULTILINE)
1097 {
1098 #ifdef __WXGTK20__
1099 return gtk_text_buffer_get_line_count( m_buffer );
1100 #else
1101 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1102 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1103
1104 if (text)
1105 {
1106 int currentLine = 0;
1107 for (int i = 0; i < len; i++ )
1108 {
1109 if (text[i] == '\n')
1110 currentLine++;
1111 }
1112 g_free( text );
1113
1114 // currentLine is 0 based, add 1 to get number of lines
1115 return currentLine + 1;
1116 }
1117 else
1118 {
1119 return 0;
1120 }
1121 #endif
1122 }
1123 else
1124 {
1125 return 1;
1126 }
1127 }
1128
1129 void wxTextCtrl::SetInsertionPoint( long pos )
1130 {
1131 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1132
1133 if ( IsMultiLine() )
1134 {
1135 #ifdef __WXGTK20__
1136 GtkTextIter iter;
1137 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1138 gtk_text_buffer_place_cursor( m_buffer, &iter );
1139 gtk_text_view_scroll_mark_onscreen
1140 (
1141 GTK_TEXT_VIEW(m_text),
1142 gtk_text_buffer_get_insert( m_buffer )
1143 );
1144 #else // GTK+ 1.x
1145 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1146 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1147
1148 /* we fake a set_point by inserting and deleting. as the user
1149 isn't supposed to get to know about this non-sense, we
1150 disconnect so that no events are sent to the user program. */
1151
1152 gint tmp = (gint)pos;
1153 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1154 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1155
1156 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1157 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1158
1159 // bring editable's cursor uptodate. Bug in GTK.
1160 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1161 #endif // GTK+ 2/1
1162 }
1163 else
1164 {
1165 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1166
1167 // Bring editable's cursor uptodate. Bug in GTK.
1168 SET_EDITABLE_POS(m_text, (guint32)pos);
1169 }
1170 }
1171
1172 void wxTextCtrl::SetInsertionPointEnd()
1173 {
1174 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1175
1176 if (m_windowStyle & wxTE_MULTILINE)
1177 {
1178 #ifdef __WXGTK20__
1179 GtkTextIter end;
1180 gtk_text_buffer_get_end_iter( m_buffer, &end );
1181 gtk_text_buffer_place_cursor( m_buffer, &end );
1182 #else
1183 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1184 #endif
1185 }
1186 else
1187 {
1188 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1189 }
1190 }
1191
1192 void wxTextCtrl::SetEditable( bool editable )
1193 {
1194 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1195
1196 if (m_windowStyle & wxTE_MULTILINE)
1197 {
1198 #ifdef __WXGTK20__
1199 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1200 #else
1201 gtk_text_set_editable( GTK_TEXT(m_text), editable );
1202 #endif
1203 }
1204 else
1205 {
1206 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1207 }
1208 }
1209
1210 bool wxTextCtrl::Enable( bool enable )
1211 {
1212 if (!wxWindowBase::Enable(enable))
1213 {
1214 // nothing to do
1215 return false;
1216 }
1217
1218 if (m_windowStyle & wxTE_MULTILINE)
1219 {
1220 #ifdef __WXGTK20__
1221 SetEditable( enable );
1222 #else
1223 gtk_text_set_editable( GTK_TEXT(m_text), enable );
1224 OnParentEnable(enable);
1225 #endif
1226 }
1227 else
1228 {
1229 gtk_widget_set_sensitive( m_text, enable );
1230 }
1231
1232 return true;
1233 }
1234
1235 // wxGTK-specific: called recursively by Enable,
1236 // to give widgets an oppprtunity to correct their colours after they
1237 // have been changed by Enable
1238 void wxTextCtrl::OnParentEnable( bool enable )
1239 {
1240 // If we have a custom background colour, we use this colour in both
1241 // disabled and enabled mode, or we end up with a different colour under the
1242 // text.
1243 wxColour oldColour = GetBackgroundColour();
1244 if (oldColour.Ok())
1245 {
1246 // Need to set twice or it'll optimize the useful stuff out
1247 if (oldColour == * wxWHITE)
1248 SetBackgroundColour(*wxBLACK);
1249 else
1250 SetBackgroundColour(*wxWHITE);
1251 SetBackgroundColour(oldColour);
1252 }
1253 }
1254
1255 void wxTextCtrl::MarkDirty()
1256 {
1257 m_modified = true;
1258 }
1259
1260 void wxTextCtrl::DiscardEdits()
1261 {
1262 m_modified = false;
1263 }
1264
1265 // ----------------------------------------------------------------------------
1266 // max text length support
1267 // ----------------------------------------------------------------------------
1268
1269 void wxTextCtrl::IgnoreNextTextUpdate()
1270 {
1271 m_ignoreNextUpdate = true;
1272 }
1273
1274 bool wxTextCtrl::IgnoreTextUpdate()
1275 {
1276 if ( m_ignoreNextUpdate )
1277 {
1278 m_ignoreNextUpdate = false;
1279
1280 return true;
1281 }
1282
1283 return false;
1284 }
1285
1286 void wxTextCtrl::SetMaxLength(unsigned long len)
1287 {
1288 if ( !HasFlag(wxTE_MULTILINE) )
1289 {
1290 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1291
1292 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1293 // we had tried to enter more text than allowed by max text length and
1294 // the text wasn't really changed
1295 //
1296 // to detect this and generate TEXT_MAXLEN event instead of
1297 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1298 //
1299 // when max len is set to 0 we disconnect our handler as it means that
1300 // we shouldn't check anything any more
1301 if ( len )
1302 {
1303 gtk_signal_connect( GTK_OBJECT(m_text),
1304 "insert_text",
1305 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1306 (gpointer)this);
1307 }
1308 else // no checking
1309 {
1310 gtk_signal_disconnect_by_func
1311 (
1312 GTK_OBJECT(m_text),
1313 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1314 (gpointer)this
1315 );
1316 }
1317 }
1318 }
1319
1320 void wxTextCtrl::SetSelection( long from, long to )
1321 {
1322 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1323
1324 if (from == -1 && to == -1)
1325 {
1326 from = 0;
1327 to = GetValue().Length();
1328 }
1329
1330 #ifndef __WXGTK20__
1331 if ( (m_windowStyle & wxTE_MULTILINE) &&
1332 !GTK_TEXT(m_text)->line_start_cache )
1333 {
1334 // tell the programmer that it didn't work
1335 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1336 return;
1337 }
1338 #endif
1339
1340 if (m_windowStyle & wxTE_MULTILINE)
1341 {
1342 #ifdef __WXGTK20__
1343 GtkTextIter fromi, toi;
1344 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1345 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1346
1347 gtk_text_buffer_place_cursor( m_buffer, &toi );
1348 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1349 #else
1350 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1351 #endif
1352 }
1353 else
1354 {
1355 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1356 }
1357 }
1358
1359 void wxTextCtrl::ShowPosition( long pos )
1360 {
1361 if (m_windowStyle & wxTE_MULTILINE)
1362 {
1363 #ifdef __WXGTK20__
1364 GtkTextIter iter;
1365 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1366 gtk_text_iter_set_offset( &iter, pos );
1367 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1368 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1369 #else // GTK 1.x
1370 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1371 float totalLines = (float) GetNumberOfLines();
1372 long posX;
1373 long posY;
1374 PositionToXY(pos, &posX, &posY);
1375 float posLine = (float) posY;
1376 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1377 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1378 #endif // GTK 1.x/2.x
1379 }
1380 }
1381
1382 #ifdef __WXGTK20__
1383
1384 wxTextCtrlHitTestResult
1385 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1386 {
1387 if ( !IsMultiLine() )
1388 {
1389 // not supported
1390 return wxTE_HT_UNKNOWN;
1391 }
1392
1393 int x, y;
1394 gtk_text_view_window_to_buffer_coords
1395 (
1396 GTK_TEXT_VIEW(m_text),
1397 GTK_TEXT_WINDOW_TEXT,
1398 pt.x, pt.y,
1399 &x, &y
1400 );
1401
1402 GtkTextIter iter;
1403 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1404 if ( pos )
1405 *pos = gtk_text_iter_get_offset(&iter);
1406
1407 return wxTE_HT_ON_TEXT;
1408 }
1409
1410 #endif // __WXGTK20__
1411
1412 long wxTextCtrl::GetInsertionPoint() const
1413 {
1414 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1415
1416 #ifdef __WXGTK20__
1417 if (m_windowStyle & wxTE_MULTILINE)
1418 {
1419 // There is no direct accessor for the cursor, but
1420 // internally, the cursor is the "mark" called
1421 // "insert" in the text view's btree structure.
1422
1423 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1424 GtkTextIter cursor;
1425 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1426
1427 return gtk_text_iter_get_offset( &cursor );
1428 }
1429 else
1430 #endif
1431 {
1432 return (long) GET_EDITABLE_POS(m_text);
1433 }
1434 }
1435
1436 wxTextPos wxTextCtrl::GetLastPosition() const
1437 {
1438 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1439
1440 int pos = 0;
1441
1442 if (m_windowStyle & wxTE_MULTILINE)
1443 {
1444 #ifdef __WXGTK20__
1445 GtkTextIter end;
1446 gtk_text_buffer_get_end_iter( m_buffer, &end );
1447
1448 pos = gtk_text_iter_get_offset( &end );
1449 #else
1450 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1451 #endif
1452 }
1453 else
1454 {
1455 pos = GTK_ENTRY(m_text)->text_length;
1456 }
1457
1458 return (long)pos;
1459 }
1460
1461 void wxTextCtrl::Remove( long from, long to )
1462 {
1463 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1464
1465 #ifdef __WXGTK20__
1466 if (m_windowStyle & wxTE_MULTILINE)
1467 {
1468 GtkTextIter fromi, toi;
1469 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1470 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1471
1472 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1473 }
1474 else // single line
1475 #endif
1476 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1477 }
1478
1479 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1480 {
1481 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1482
1483 Remove( from, to );
1484
1485 if (!value.empty())
1486 {
1487 #ifdef __WXGTK20__
1488 SetInsertionPoint( from );
1489 WriteText( value );
1490 #else // GTK 1.x
1491 gint pos = (gint)from;
1492 #if wxUSE_UNICODE
1493 wxWX2MBbuf buf = value.mbc_str();
1494 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1495 #else
1496 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1497 #endif // wxUSE_UNICODE
1498 #endif // GTK 1.x/2.x
1499 }
1500 }
1501
1502 void wxTextCtrl::Cut()
1503 {
1504 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1505
1506 #ifdef __WXGTK20__
1507 if (m_windowStyle & wxTE_MULTILINE)
1508 g_signal_emit_by_name(m_text, "cut-clipboard");
1509 else
1510 #endif
1511 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1512 }
1513
1514 void wxTextCtrl::Copy()
1515 {
1516 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1517
1518 #ifdef __WXGTK20__
1519 if (m_windowStyle & wxTE_MULTILINE)
1520 g_signal_emit_by_name(m_text, "copy-clipboard");
1521 else
1522 #endif
1523 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1524 }
1525
1526 void wxTextCtrl::Paste()
1527 {
1528 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1529
1530 #ifdef __WXGTK20__
1531 if (m_windowStyle & wxTE_MULTILINE)
1532 g_signal_emit_by_name(m_text, "paste-clipboard");
1533 else
1534 #endif
1535 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1536 }
1537
1538 // Undo/redo
1539 void wxTextCtrl::Undo()
1540 {
1541 // TODO
1542 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1543 }
1544
1545 void wxTextCtrl::Redo()
1546 {
1547 // TODO
1548 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1549 }
1550
1551 bool wxTextCtrl::CanUndo() const
1552 {
1553 // TODO
1554 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1555 return false;
1556 }
1557
1558 bool wxTextCtrl::CanRedo() const
1559 {
1560 // TODO
1561 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1562 return false;
1563 }
1564
1565 // If the return values from and to are the same, there is no
1566 // selection.
1567 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1568 {
1569 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1570
1571 gint from = -1;
1572 gint to = -1;
1573 bool haveSelection = false;
1574
1575 #ifdef __WXGTK20__
1576 if (m_windowStyle & wxTE_MULTILINE)
1577 {
1578 GtkTextIter ifrom, ito;
1579 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1580 {
1581 haveSelection = true;
1582 from = gtk_text_iter_get_offset(&ifrom);
1583 to = gtk_text_iter_get_offset(&ito);
1584 }
1585 }
1586 else // not multi-line
1587 {
1588 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1589 &from, &to) )
1590 {
1591 haveSelection = true;
1592 }
1593 }
1594 #else // not GTK2
1595 if ( (GTK_EDITABLE(m_text)->has_selection) )
1596 {
1597 haveSelection = true;
1598 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1599 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1600 }
1601 #endif
1602
1603 if (! haveSelection )
1604 from = to = GetInsertionPoint();
1605
1606 if ( from > to )
1607 {
1608 // exchange them to be compatible with wxMSW
1609 gint tmp = from;
1610 from = to;
1611 to = tmp;
1612 }
1613
1614 if ( fromOut )
1615 *fromOut = from;
1616 if ( toOut )
1617 *toOut = to;
1618 }
1619
1620
1621 bool wxTextCtrl::IsEditable() const
1622 {
1623 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1624
1625 #ifdef __WXGTK20__
1626 if (m_windowStyle & wxTE_MULTILINE)
1627 {
1628 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1629 }
1630 else
1631 {
1632 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1633 }
1634 #else
1635 return GTK_EDITABLE(m_text)->editable;
1636 #endif
1637 }
1638
1639 bool wxTextCtrl::IsModified() const
1640 {
1641 return m_modified;
1642 }
1643
1644 void wxTextCtrl::Clear()
1645 {
1646 SetValue( wxT("") );
1647 }
1648
1649 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1650 {
1651 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1652
1653 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1654 {
1655 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1656 event.SetEventObject(this);
1657 event.SetString(GetValue());
1658 if (GetEventHandler()->ProcessEvent(event)) return;
1659 }
1660
1661 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1662 {
1663 // This will invoke the dialog default action, such
1664 // as the clicking the default button.
1665
1666 wxWindow *top_frame = m_parent;
1667 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1668 top_frame = top_frame->GetParent();
1669
1670 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1671 {
1672 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1673
1674 if (window->default_widget)
1675 {
1676 gtk_widget_activate (window->default_widget);
1677 return;
1678 }
1679 }
1680 }
1681
1682 key_event.Skip();
1683 }
1684
1685 GtkWidget* wxTextCtrl::GetConnectWidget()
1686 {
1687 return GTK_WIDGET(m_text);
1688 }
1689
1690 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1691 {
1692 if (m_windowStyle & wxTE_MULTILINE)
1693 {
1694 #ifdef __WXGTK20__
1695 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1696 #else
1697 return (window == GTK_TEXT(m_text)->text_area);
1698 #endif
1699 }
1700 else
1701 {
1702 return (window == GTK_ENTRY(m_text)->text_area);
1703 }
1704 }
1705
1706 // the font will change for subsequent text insertiongs
1707 bool wxTextCtrl::SetFont( const wxFont &font )
1708 {
1709 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1710
1711 if ( !wxTextCtrlBase::SetFont(font) )
1712 {
1713 // font didn't change, nothing to do
1714 return false;
1715 }
1716
1717 if ( m_windowStyle & wxTE_MULTILINE )
1718 {
1719 SetUpdateFont(true);
1720
1721 m_defaultStyle.SetFont(font);
1722
1723 ChangeFontGlobally();
1724 }
1725
1726 return true;
1727 }
1728
1729 void wxTextCtrl::ChangeFontGlobally()
1730 {
1731 // this method is very inefficient and hence should be called as rarely as
1732 // possible!
1733 //
1734 // TODO: it can be implemented much more efficiently for GTK2
1735 #ifndef __WXGTK20__
1736 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1737
1738 _T("shouldn't be called for single line controls") );
1739 #else
1740 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1741 _T("shouldn't be called for single line controls") );
1742 #endif
1743
1744 wxString value = GetValue();
1745 if ( !value.empty() )
1746 {
1747 SetUpdateFont(false);
1748
1749 Clear();
1750 AppendText(value);
1751 }
1752 }
1753
1754 #ifndef __WXGTK20__
1755
1756 void wxTextCtrl::UpdateFontIfNeeded()
1757 {
1758 if ( m_updateFont )
1759 ChangeFontGlobally();
1760 }
1761
1762 #endif // GTK+ 1.x
1763
1764 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1765 {
1766 if ( !wxControl::SetForegroundColour(colour) )
1767 return false;
1768
1769 // update default fg colour too
1770 m_defaultStyle.SetTextColour(colour);
1771
1772 return true;
1773 }
1774
1775 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1776 {
1777 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1778
1779 if ( !wxControl::SetBackgroundColour( colour ) )
1780 return false;
1781
1782 #ifndef __WXGTK20__
1783 if (!m_widget->window)
1784 return false;
1785 #endif
1786
1787 if (!m_backgroundColour.Ok())
1788 return false;
1789
1790 if (m_windowStyle & wxTE_MULTILINE)
1791 {
1792 #ifndef __WXGTK20__
1793 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1794 if (!window)
1795 return false;
1796 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1797 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1798 gdk_window_clear( window );
1799 #endif
1800 }
1801
1802 // change active background color too
1803 m_defaultStyle.SetBackgroundColour( colour );
1804
1805 return true;
1806 }
1807
1808 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1809 {
1810 if ( m_windowStyle & wxTE_MULTILINE )
1811 {
1812 if ( style.IsDefault() )
1813 {
1814 // nothing to do
1815 return true;
1816 }
1817 #ifdef __WXGTK20__
1818 gint l = gtk_text_buffer_get_char_count( m_buffer );
1819
1820 wxCHECK_MSG( start >= 0 && end <= l, false,
1821 _T("invalid range in wxTextCtrl::SetStyle") );
1822
1823 GtkTextIter starti, endi;
1824 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1825 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1826
1827 // use the attributes from style which are set in it and fall back
1828 // first to the default style and then to the text control default
1829 // colours for the others
1830 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1831
1832 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1833
1834 return true;
1835 #else
1836 // VERY dirty way to do that - removes the required text and re-adds it
1837 // with styling (FIXME)
1838
1839 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1840
1841 wxCHECK_MSG( start >= 0 && end <= l, false,
1842 _T("invalid range in wxTextCtrl::SetStyle") );
1843
1844 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1845 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1846 wxString tmp(text,*wxConvCurrent);
1847 g_free( text );
1848
1849 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1850 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1851
1852 #if wxUSE_UNICODE
1853 wxWX2MBbuf buf = tmp.mbc_str();
1854 const char *txt = buf;
1855 size_t txtlen = strlen(buf);
1856 #else
1857 const char *txt = tmp;
1858 size_t txtlen = tmp.length();
1859 #endif
1860
1861 // use the attributes from style which are set in it and fall back
1862 // first to the default style and then to the text control default
1863 // colours for the others
1864 wxGtkTextInsert(m_text,
1865 wxTextAttr::Combine(style, m_defaultStyle, this),
1866 txt,
1867 txtlen);
1868
1869 /* does not seem to help under GTK+ 1.2 !!!
1870 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1871 SetInsertionPoint( old_pos );
1872 #endif
1873 return true;
1874 }
1875 else // singe line
1876 {
1877 // cannot do this for GTK+'s Entry widget
1878 return false;
1879 }
1880 }
1881
1882 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1883 {
1884 gtk_widget_modify_style(m_text, style);
1885 }
1886
1887 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1888 {
1889 Cut();
1890 }
1891
1892 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1893 {
1894 Copy();
1895 }
1896
1897 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1898 {
1899 Paste();
1900 }
1901
1902 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1903 {
1904 Undo();
1905 }
1906
1907 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1908 {
1909 Redo();
1910 }
1911
1912 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1913 {
1914 event.Enable( CanCut() );
1915 }
1916
1917 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1918 {
1919 event.Enable( CanCopy() );
1920 }
1921
1922 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1923 {
1924 event.Enable( CanPaste() );
1925 }
1926
1927 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1928 {
1929 event.Enable( CanUndo() );
1930 }
1931
1932 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1933 {
1934 event.Enable( CanRedo() );
1935 }
1936
1937 void wxTextCtrl::OnInternalIdle()
1938 {
1939 wxCursor cursor = m_cursor;
1940 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1941
1942 if (cursor.Ok())
1943 {
1944 #ifndef __WXGTK20__
1945 GdkWindow *window = (GdkWindow*) NULL;
1946 if (HasFlag(wxTE_MULTILINE))
1947 window = GTK_TEXT(m_text)->text_area;
1948 else
1949 window = GTK_ENTRY(m_text)->text_area;
1950
1951 if (window)
1952 gdk_window_set_cursor( window, cursor.GetCursor() );
1953
1954 if (!g_globalCursor.Ok())
1955 cursor = *wxSTANDARD_CURSOR;
1956
1957 window = m_widget->window;
1958 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1959 gdk_window_set_cursor( window, cursor.GetCursor() );
1960 #endif
1961 }
1962
1963 if (g_delayedFocus == this)
1964 {
1965 if (GTK_WIDGET_REALIZED(m_widget))
1966 {
1967 gtk_widget_grab_focus( m_widget );
1968 g_delayedFocus = NULL;
1969 }
1970 }
1971
1972 if (wxUpdateUIEvent::CanUpdate(this))
1973 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1974 }
1975
1976 wxSize wxTextCtrl::DoGetBestSize() const
1977 {
1978 // FIXME should be different for multi-line controls...
1979 wxSize ret( wxControl::DoGetBestSize() );
1980 wxSize best(80, ret.y);
1981 CacheBestSize(best);
1982 return best;
1983 }
1984
1985 // ----------------------------------------------------------------------------
1986 // freeze/thaw
1987 // ----------------------------------------------------------------------------
1988
1989 void wxTextCtrl::Freeze()
1990 {
1991 if ( HasFlag(wxTE_MULTILINE) )
1992 {
1993 #ifdef __WXGTK20__
1994 if ( !m_frozenness++ )
1995 {
1996 // freeze textview updates and remove buffer
1997 g_signal_connect( G_OBJECT(m_text), "expose_event",
1998 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
1999 g_signal_connect( G_OBJECT(m_widget), "expose_event",
2000 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2001 gtk_widget_set_sensitive(m_widget, false);
2002 g_object_ref(m_buffer);
2003 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2004 }
2005 #else
2006 gtk_text_freeze(GTK_TEXT(m_text));
2007 #endif
2008 }
2009 }
2010
2011 void wxTextCtrl::Thaw()
2012 {
2013 if ( HasFlag(wxTE_MULTILINE) )
2014 {
2015 #ifdef __WXGTK20__
2016 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2017
2018 if ( !--m_frozenness )
2019 {
2020 // Reattach buffer and thaw textview updates
2021 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2022 g_object_unref(m_buffer);
2023 gtk_widget_set_sensitive(m_widget, true);
2024 g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2025 g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2026 }
2027 #else
2028 GTK_TEXT(m_text)->vadj->value = 0.0;
2029
2030 gtk_text_thaw(GTK_TEXT(m_text));
2031 #endif
2032 }
2033 }
2034
2035 // ----------------------------------------------------------------------------
2036 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2037 // ----------------------------------------------------------------------------
2038
2039 #ifdef __WXGTK20__
2040
2041 // FIXME: when dragging on a link the sample gets an "Unknown event".
2042 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2043 // a buggy sample, or something else
2044 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2045 {
2046 event.Skip();
2047 if(!(m_windowStyle & wxTE_AUTO_URL))
2048 return;
2049
2050 gint x, y;
2051 GtkTextIter start, end;
2052 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2053 "wxUrl");
2054
2055 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2056 event.GetX(), event.GetY(), &x, &y);
2057
2058 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2059 if (!gtk_text_iter_has_tag(&end, tag))
2060 {
2061 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2062 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2063 return;
2064 }
2065
2066 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2067 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2068
2069 start = end;
2070 if(!gtk_text_iter_begins_tag(&start, tag))
2071 gtk_text_iter_backward_to_tag_toggle(&start, tag);
2072 if(!gtk_text_iter_ends_tag(&end, tag))
2073 gtk_text_iter_forward_to_tag_toggle(&end, tag);
2074
2075 // Native context menu is probably not desired on an URL.
2076 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2077 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2078 event.Skip(false);
2079
2080 wxTextUrlEvent url_event(m_windowId, event,
2081 gtk_text_iter_get_offset(&start),
2082 gtk_text_iter_get_offset(&end));
2083
2084 InitCommandEvent(url_event);
2085 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2086 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2087 GetEventHandler()->ProcessEvent(url_event);
2088 }
2089 #endif // gtk2
2090
2091 // ----------------------------------------------------------------------------
2092 // scrolling
2093 // ----------------------------------------------------------------------------
2094
2095 GtkAdjustment *wxTextCtrl::GetVAdj() const
2096 {
2097 if ( !IsMultiLine() )
2098 return NULL;
2099
2100 #ifdef __WXGTK20__
2101 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2102 #else
2103 return GTK_TEXT(m_text)->vadj;
2104 #endif
2105 }
2106
2107 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2108 {
2109 float value = adj->value + diff;
2110
2111 if ( value < 0 )
2112 value = 0;
2113
2114 float upper = adj->upper - adj->page_size;
2115 if ( value > upper )
2116 value = upper;
2117
2118 // did we noticeably change the scroll position?
2119 if ( fabs(adj->value - value) < 0.2 )
2120 {
2121 // well, this is what Robert does in wxScrollBar, so it must be good...
2122 return false;
2123 }
2124
2125 adj->value = value;
2126
2127 #ifdef __WXGTK20__
2128 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2129 #else
2130 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2131 #endif
2132
2133 return true;
2134 }
2135
2136 bool wxTextCtrl::ScrollLines(int lines)
2137 {
2138 GtkAdjustment *adj = GetVAdj();
2139 if ( !adj )
2140 return false;
2141
2142 #ifdef __WXGTK20__
2143 int diff = (int)ceil(lines*adj->step_increment);
2144 #else
2145 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2146 int diff = 10*lines;
2147 #endif
2148
2149 return DoScroll(adj, diff);
2150 }
2151
2152 bool wxTextCtrl::ScrollPages(int pages)
2153 {
2154 GtkAdjustment *adj = GetVAdj();
2155 if ( !adj )
2156 return false;
2157
2158 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2159 }
2160
2161
2162 // static
2163 wxVisualAttributes
2164 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2165 {
2166 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2167 }
wxWidgets (Impactor)