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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/gtk/textctrl.cpp
3// Purpose:
4// Author: Robert Roebling
5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin, 2005 Mart Raudsepp
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10// For compilers that support precompilation, includes "wx.h".
11#include "wx/wxprec.h"
12
13#if wxUSE_TEXTCTRL
14
15#include "wx/textctrl.h"
16
17#ifndef WX_PRECOMP
18 #include "wx/intl.h"
19 #include "wx/log.h"
20 #include "wx/utils.h"
21 #include "wx/settings.h"
22 #include "wx/math.h"
23#endif
24
25#include "wx/strconv.h"
26#include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
27
28#include <sys/types.h>
29#include <sys/stat.h>
30#include <ctype.h>
31
32#include "wx/gtk/private.h"
33
34// ----------------------------------------------------------------------------
35// helpers
36// ----------------------------------------------------------------------------
37
38extern "C" {
39static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
40 GtkTextTag *tag,
41 GtkTextIter *start,
42 GtkTextIter *end,
43 char *prefix)
44{
45 gchar *name;
46 g_object_get (tag, "name", &name, NULL);
47
48 if (!name || strncmp(name, prefix, strlen(prefix)))
49 // anonymous tag or not starting with prefix - don't remove
50 g_signal_stop_emission_by_name (buffer, "remove_tag");
51
52 g_free(name);
53}
54}
55
56// remove all tags starting with the given prefix from the start..end range
57static void
58wxGtkTextRemoveTagsWithPrefix(GtkTextBuffer *text_buffer,
59 const char *prefix,
60 GtkTextIter *start,
61 GtkTextIter *end)
62{
63 gulong remove_handler_id = g_signal_connect
64 (
65 text_buffer,
66 "remove_tag",
67 G_CALLBACK(wxGtkOnRemoveTag),
68 gpointer(prefix)
69 );
70 gtk_text_buffer_remove_all_tags(text_buffer, start, end);
71 g_signal_handler_disconnect(text_buffer, remove_handler_id);
72}
73
74static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
75 GtkTextBuffer *text_buffer,
76 const wxTextAttr& attr,
77 GtkTextIter *start,
78 GtkTextIter *end)
79{
80 static gchar buf[1024];
81 GtkTextTag *tag;
82
83 if (attr.HasFont())
84 {
85 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFONT", start, end);
86
87 wxFont font(attr.GetFont());
88
89 PangoFontDescription *font_description = font.GetNativeFontInfo()->description;
90 wxGtkString font_string(pango_font_description_to_string(font_description));
91 g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
92 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
93 buf );
94 if (!tag)
95 tag = gtk_text_buffer_create_tag( text_buffer, buf,
96 "font-desc", font_description,
97 NULL );
98 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
99
100 if (font.GetUnderlined())
101 {
102 g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
103 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
104 buf );
105 if (!tag)
106 tag = gtk_text_buffer_create_tag( text_buffer, buf,
107 "underline-set", TRUE,
108 "underline", PANGO_UNDERLINE_SINGLE,
109 NULL );
110 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
111 }
112 }
113
114 if (attr.HasTextColour())
115 {
116 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFORECOLOR", start, end);
117
118 const GdkColor *colFg = attr.GetTextColour().GetColor();
119 g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
120 colFg->red, colFg->green, colFg->blue);
121 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
122 buf );
123 if (!tag)
124 tag = gtk_text_buffer_create_tag( text_buffer, buf,
125 "foreground-gdk", colFg, NULL );
126 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
127 }
128
129 if (attr.HasBackgroundColour())
130 {
131 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXBACKCOLOR", start, end);
132
133 const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
134 g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
135 colBg->red, colBg->green, colBg->blue);
136 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
137 buf );
138 if (!tag)
139 tag = gtk_text_buffer_create_tag( text_buffer, buf,
140 "background-gdk", colBg, NULL );
141 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
142 }
143
144 if (attr.HasAlignment())
145 {
146 GtkTextIter para_start, para_end = *end;
147 gtk_text_buffer_get_iter_at_line( text_buffer,
148 &para_start,
149 gtk_text_iter_get_line(start) );
150 gtk_text_iter_forward_line(&para_end);
151
152 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXALIGNMENT", start, end);
153
154 GtkJustification align;
155 switch (attr.GetAlignment())
156 {
157 default:
158 align = GTK_JUSTIFY_LEFT;
159 break;
160 case wxTEXT_ALIGNMENT_RIGHT:
161 align = GTK_JUSTIFY_RIGHT;
162 break;
163 case wxTEXT_ALIGNMENT_CENTER:
164 align = GTK_JUSTIFY_CENTER;
165 break;
166// gtk+ doesn't support justify before gtk+-2.11.0 with pango-1.17 being available
167// (but if new enough pango isn't available it's a mere gtk warning)
168#if GTK_CHECK_VERSION(2,11,0)
169 case wxTEXT_ALIGNMENT_JUSTIFIED:
170 if (!gtk_check_version(2,11,0))
171 align = GTK_JUSTIFY_FILL;
172 else
173 align = GTK_JUSTIFY_LEFT;
174 break;
175#endif
176 }
177
178 g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
179 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
180 buf );
181 if (!tag)
182 tag = gtk_text_buffer_create_tag( text_buffer, buf,
183 "justification", align, NULL );
184 gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
185 }
186
187 if (attr.HasLeftIndent())
188 {
189 // Indentation attribute
190
191 // Clear old indentation tags
192 GtkTextIter para_start, para_end = *end;
193 gtk_text_buffer_get_iter_at_line( text_buffer,
194 &para_start,
195 gtk_text_iter_get_line(start) );
196 gtk_text_iter_forward_line(&para_end);
197
198 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXINDENT", start, end);
199
200 // Convert indent from 1/10th of a mm into pixels
201 float factor;
202#if GTK_CHECK_VERSION(2,2,0)
203 if (!gtk_check_version(2,2,0))
204 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
205 gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
206 else
207#endif
208 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
209
210 const int indent = (int)(factor * attr.GetLeftIndent());
211 const int subIndent = (int)(factor * attr.GetLeftSubIndent());
212
213 gint gindent;
214 gint gsubindent;
215
216 if (subIndent >= 0)
217 {
218 gindent = indent;
219 gsubindent = -subIndent;
220 }
221 else
222 {
223 gindent = -subIndent;
224 gsubindent = indent;
225 }
226
227 g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
228 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
229 buf );
230 if (!tag)
231 tag = gtk_text_buffer_create_tag( text_buffer, buf,
232 "left-margin", gindent, "indent", gsubindent, NULL );
233 gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
234 }
235
236 if (attr.HasTabs())
237 {
238 // Set tab stops
239
240 // Clear old tabs
241 GtkTextIter para_start, para_end = *end;
242 gtk_text_buffer_get_iter_at_line( text_buffer,
243 &para_start,
244 gtk_text_iter_get_line(start) );
245 gtk_text_iter_forward_line(&para_end);
246
247 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXTABS", start, end);
248
249 const wxArrayInt& tabs = attr.GetTabs();
250
251 wxString tagname = _T("WXTABS");
252 g_snprintf(buf, sizeof(buf), "WXTABS");
253 for (size_t i = 0; i < tabs.GetCount(); i++)
254 tagname += wxString::Format(_T(" %d"), tabs[i]);
255
256 const wxWX2MBbuf buftag = tagname.utf8_str();
257
258 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
259 buftag );
260 if (!tag)
261 {
262 // Factor to convert from 1/10th of a mm into pixels
263 float factor;
264#if GTK_CHECK_VERSION(2,2,0)
265 if (!gtk_check_version(2,2,0))
266 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
267 gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
268 else
269#endif
270 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
271
272 PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
273 for (size_t i = 0; i < tabs.GetCount(); i++)
274 pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
275 tag = gtk_text_buffer_create_tag( text_buffer, buftag,
276 "tabs", tabArray, NULL );
277 pango_tab_array_free(tabArray);
278 }
279 gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
280 }
281}
282
283static void wxGtkTextInsert(GtkWidget *text,
284 GtkTextBuffer *text_buffer,
285 const wxTextAttr& attr,
286 const wxCharBuffer& buffer)
287
288{
289 gint start_offset;
290 GtkTextIter iter, start;
291
292 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
293 gtk_text_buffer_get_insert (text_buffer) );
294 start_offset = gtk_text_iter_get_offset (&iter);
295 gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
296
297 gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
298
299 wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
300}
301
302// Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
303
304extern "C" {
305static void
306au_apply_tag_callback(GtkTextBuffer *buffer,
307 GtkTextTag *tag,
308 GtkTextIter *start,
309 GtkTextIter *end,
310 gpointer textctrl)
311{
312 if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
313 g_signal_stop_emission_by_name (buffer, "apply_tag");
314}
315}
316
317//-----------------------------------------------------------------------------
318// GtkTextCharPredicates for gtk_text_iter_*_find_char
319//-----------------------------------------------------------------------------
320
321extern "C" {
322static gboolean
323pred_whitespace (gunichar ch, gpointer user_data)
324{
325 return g_unichar_isspace(ch);
326}
327}
328
329extern "C" {
330static gboolean
331pred_non_whitespace (gunichar ch, gpointer user_data)
332{
333 return !g_unichar_isspace(ch);
334}
335}
336
337extern "C" {
338static gboolean
339pred_nonpunct (gunichar ch, gpointer user_data)
340{
341 return !g_unichar_ispunct(ch);
342}
343}
344
345extern "C" {
346static gboolean
347pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
348{
349 return !g_unichar_ispunct(ch) || ch == '/';
350}
351}
352
353//-----------------------------------------------------------------------------
354// Check for links between s and e and correct tags as necessary
355//-----------------------------------------------------------------------------
356
357// This function should be made match better while being efficient at one point.
358// Most probably with a row of regular expressions.
359extern "C" {
360static void
361au_check_word( GtkTextIter *s, GtkTextIter *e )
362{
363 static const char *URIPrefixes[] =
364 {
365 "http://",
366 "ftp://",
367 "www.",
368 "ftp.",
369 "mailto://",
370 "https://",
371 "file://",
372 "nntp://",
373 "news://",
374 "telnet://",
375 "mms://",
376 "gopher://",
377 "prospero://",
378 "wais://",
379 };
380
381 GtkTextIter start = *s, end = *e;
382 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
383
384 // Get our special link tag
385 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
386
387 // Get rid of punctuation from beginning and end.
388 // Might want to move this to au_check_range if an improved link checking doesn't
389 // use some intelligent punctuation checking itself (beware of undesired iter modifications).
390 if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
391 gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
392
393 gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
394 gtk_text_iter_forward_char(&end);
395
396 wxGtkString text(gtk_text_iter_get_text( &start, &end ));
397 size_t len = strlen(text), prefix_len;
398 size_t n;
399
400 for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
401 {
402 prefix_len = strlen(URIPrefixes[n]);
403 if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
404 break;
405 }
406
407 if(n < WXSIZEOF(URIPrefixes))
408 {
409 gulong signal_id = g_signal_handler_find (buffer,
410 (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
411 0, 0, NULL,
412 (gpointer)au_apply_tag_callback, NULL);
413
414 g_signal_handler_block (buffer, signal_id);
415 gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
416 g_signal_handler_unblock (buffer, signal_id);
417 }
418}
419}
420
421extern "C" {
422static void
423au_check_range(GtkTextIter *s,
424 GtkTextIter *range_end)
425{
426 GtkTextIter range_start = *s;
427 GtkTextIter word_end;
428 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
429 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
430
431 gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
432
433 if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
434 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
435
436 while(!gtk_text_iter_equal(&range_start, range_end))
437 {
438 word_end = range_start;
439 gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
440
441 // Now we should have a word delimited by range_start and word_end, correct link tags
442 au_check_word(&range_start, &word_end);
443
444 range_start = word_end;
445 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
446 }
447}
448}
449
450//-----------------------------------------------------------------------------
451// "insert-text" for GtkTextBuffer
452//-----------------------------------------------------------------------------
453
454extern "C" {
455static void
456au_insert_text_callback(GtkTextBuffer *buffer,
457 GtkTextIter *end,
458 gchar *text,
459 gint len,
460 wxTextCtrl *win)
461{
462 if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
463 return;
464
465 GtkTextIter start = *end;
466 gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
467
468 GtkTextIter line_start = start;
469 GtkTextIter line_end = *end;
470 GtkTextIter words_start = start;
471 GtkTextIter words_end = *end;
472
473 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
474 gtk_text_iter_forward_to_line_end(&line_end);
475 gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
476 gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
477
478 au_check_range(&words_start, &words_end);
479}
480}
481
482//-----------------------------------------------------------------------------
483// "delete-range" for GtkTextBuffer
484//-----------------------------------------------------------------------------
485
486extern "C" {
487static void
488au_delete_range_callback(GtkTextBuffer *buffer,
489 GtkTextIter *start,
490 GtkTextIter *end,
491 wxTextCtrl *win)
492{
493 if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
494 return;
495
496 GtkTextIter line_start = *start, line_end = *end;
497
498 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
499 gtk_text_iter_forward_to_line_end(&line_end);
500 gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
501 gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
502
503 au_check_range(start, end);
504}
505}
506
507
508//-----------------------------------------------------------------------------
509// "changed"
510//-----------------------------------------------------------------------------
511
512extern "C" {
513static void
514gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
515{
516 if ( win->IgnoreTextUpdate() )
517 return;
518
519 if (!win->m_hasVMT) return;
520
521 if ( win->MarkDirtyOnChange() )
522 win->MarkDirty();
523
524 win->SendTextUpdatedEvent();
525}
526}
527
528//-----------------------------------------------------------------------------
529// clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
530//-----------------------------------------------------------------------------
531
532// common part of the event handlers below
533static void
534handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
535 wxEventType eventType, const gchar * signal_name)
536{
537 wxClipboardTextEvent event( eventType, win->GetId() );
538 event.SetEventObject( win );
539 if ( win->GetEventHandler()->ProcessEvent( event ) )
540 {
541 // don't let the default processing to take place if we did something
542 // ourselves in the event handler
543 g_signal_stop_emission_by_name (widget, signal_name);
544 }
545}
546
547extern "C" {
548static void
549gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
550{
551 handle_text_clipboard_callback(
552 widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
553}
554
555static void
556gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
557{
558 handle_text_clipboard_callback(
559 widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
560}
561
562static void
563gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
564{
565 handle_text_clipboard_callback(
566 widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
567}
568}
569
570//-----------------------------------------------------------------------------
571// "expose_event" from scrolled window and textview
572//-----------------------------------------------------------------------------
573
574extern "C" {
575static gboolean
576gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
577{
578 return TRUE;
579}
580}
581
582
583//-----------------------------------------------------------------------------
584// wxTextCtrl
585//-----------------------------------------------------------------------------
586
587IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
588
589BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
590 EVT_CHAR(wxTextCtrl::OnChar)
591
592 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
593 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
594 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
595 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
596 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
597
598 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
599 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
600 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
601 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
602 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
603
604 // wxTE_AUTO_URL wxTextUrl support. Currently only creates
605 // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
606 EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
607 EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
608 EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
609 EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
610 EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
611 EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
612 EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
613END_EVENT_TABLE()
614
615void wxTextCtrl::Init()
616{
617 m_dontMarkDirty =
618 m_modified = false;
619
620 m_countUpdatesToIgnore = 0;
621
622 SetUpdateFont(false);
623
624 m_text = NULL;
625 m_freezeCount = 0;
626 m_showPositionOnThaw = NULL;
627 m_gdkHandCursor = NULL;
628 m_gdkXTermCursor = NULL;
629}
630
631wxTextCtrl::~wxTextCtrl()
632{
633 if(m_gdkHandCursor)
634 gdk_cursor_unref(m_gdkHandCursor);
635 if(m_gdkXTermCursor)
636 gdk_cursor_unref(m_gdkXTermCursor);
637}
638
639wxTextCtrl::wxTextCtrl( wxWindow *parent,
640 wxWindowID id,
641 const wxString &value,
642 const wxPoint &pos,
643 const wxSize &size,
644 long style,
645 const wxValidator& validator,
646 const wxString &name )
647{
648 Init();
649
650 Create( parent, id, value, pos, size, style, validator, name );
651}
652
653bool wxTextCtrl::Create( wxWindow *parent,
654 wxWindowID id,
655 const wxString &value,
656 const wxPoint &pos,
657 const wxSize &size,
658 long style,
659 const wxValidator& validator,
660 const wxString &name )
661{
662 if (!PreCreation( parent, pos, size ) ||
663 !CreateBase( parent, id, pos, size, style, validator, name ))
664 {
665 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
666 return false;
667 }
668
669 bool multi_line = (style & wxTE_MULTILINE) != 0;
670
671 if (multi_line)
672 {
673 // Create view
674 m_text = gtk_text_view_new();
675
676 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
677
678 // create "ShowPosition" marker
679 GtkTextIter iter;
680 gtk_text_buffer_get_start_iter(m_buffer, &iter);
681 gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
682
683 // create scrolled window
684 m_widget = gtk_scrolled_window_new( NULL, NULL );
685 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
686 GTK_POLICY_AUTOMATIC,
687 style & wxTE_NO_VSCROLL
688 ? GTK_POLICY_NEVER
689 : GTK_POLICY_AUTOMATIC );
690 // for ScrollLines/Pages
691 m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
692
693 // Insert view into scrolled window
694 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
695
696 GTKSetWrapMode();
697
698 GtkScrolledWindowSetBorder(m_widget, style);
699
700 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
701
702 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
703 }
704 else
705 {
706 // a single-line text control: no need for scrollbars
707 m_widget =
708 m_text = gtk_entry_new();
709
710 if (style & wxNO_BORDER)
711 g_object_set (m_text, "has-frame", FALSE, NULL);
712 }
713
714 m_parent->DoAddChild( this );
715
716 m_focusWidget = m_text;
717
718 PostCreation(size);
719
720 if (multi_line)
721 {
722 gtk_widget_show(m_text);
723 }
724
725 // We want to be notified about text changes.
726 if (multi_line)
727 {
728 g_signal_connect (m_buffer, "changed",
729 G_CALLBACK (gtk_text_changed_callback), this);
730 }
731 else
732 {
733 g_signal_connect (m_text, "changed",
734 G_CALLBACK (gtk_text_changed_callback), this);
735 }
736
737 if (!value.empty())
738 {
739 SetValue( value );
740 }
741
742 if (style & wxTE_PASSWORD)
743 GTKSetVisibility();
744
745 if (style & wxTE_READONLY)
746 GTKSetEditable();
747
748 // left justification (alignment) is the default anyhow
749 if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
750 GTKSetJustification();
751
752 if (multi_line)
753 {
754 // Handle URLs on multi-line controls with wxTE_AUTO_URL style
755 if (style & wxTE_AUTO_URL)
756 {
757 GtkTextIter start, end;
758 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
759 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
760
761 // We create our wxUrl tag here for slight efficiency gain - we
762 // don't have to check for the tag existance in callbacks,
763 // hereby it's guaranteed to exist.
764 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
765 "foreground", "blue",
766 "underline", PANGO_UNDERLINE_SINGLE,
767 NULL);
768
769 // Check for URLs after each text change
770 g_signal_connect_after (m_buffer, "insert_text",
771 G_CALLBACK (au_insert_text_callback), this);
772 g_signal_connect_after (m_buffer, "delete_range",
773 G_CALLBACK (au_delete_range_callback), this);
774
775 // Block all wxUrl tag applying unless we do it ourselves, in which case we
776 // block this callback temporarily. This takes care of gtk+ internal
777 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
778 // which is undesired because only a part of the URL might be copied.
779 // The insert-text signal emitted inside it will take care of newly formed
780 // or wholly copied URLs.
781 g_signal_connect (m_buffer, "apply_tag",
782 G_CALLBACK (au_apply_tag_callback), NULL);
783
784 // Check for URLs in the initial string passed to Create
785 gtk_text_buffer_get_start_iter(m_buffer, &start);
786 gtk_text_buffer_get_end_iter(m_buffer, &end);
787 au_check_range(&start, &end);
788 }
789 }
790
791 g_signal_connect (m_text, "copy-clipboard",
792 G_CALLBACK (gtk_copy_clipboard_callback), this);
793 g_signal_connect (m_text, "cut-clipboard",
794 G_CALLBACK (gtk_cut_clipboard_callback), this);
795 g_signal_connect (m_text, "paste-clipboard",
796 G_CALLBACK (gtk_paste_clipboard_callback), this);
797
798 m_cursor = wxCursor( wxCURSOR_IBEAM );
799
800 return true;
801}
802
803GtkEditable *wxTextCtrl::GetEditable() const
804{
805 wxCHECK_MSG( IsSingleLine(), NULL, "shouldn't be called for multiline" );
806
807 return GTK_EDITABLE(m_text);
808}
809
810// ----------------------------------------------------------------------------
811// flags handling
812// ----------------------------------------------------------------------------
813
814void wxTextCtrl::GTKSetEditable()
815{
816 gboolean editable = !HasFlag(wxTE_READONLY);
817 if ( IsSingleLine() )
818 gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
819 else
820 gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
821}
822
823void wxTextCtrl::GTKSetVisibility()
824{
825 // VZ: shouldn't we assert if wxTE_PASSWORD is set for multiline control?
826 if ( IsSingleLine() )
827 gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
828}
829
830void wxTextCtrl::GTKSetWrapMode()
831{
832 // no wrapping in single line controls
833 if ( !IsMultiLine() )
834 return;
835
836 // translate wx wrapping style to GTK+
837 GtkWrapMode wrap;
838 if ( HasFlag( wxTE_DONTWRAP ) )
839 wrap = GTK_WRAP_NONE;
840 else if ( HasFlag( wxTE_CHARWRAP ) )
841 wrap = GTK_WRAP_CHAR;
842 else if ( HasFlag( wxTE_WORDWRAP ) )
843 wrap = GTK_WRAP_WORD;
844 else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
845 {
846 // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
847#ifdef __WXGTK24__
848 if ( !gtk_check_version(2,4,0) )
849 {
850 wrap = GTK_WRAP_WORD_CHAR;
851 }
852 else
853#endif // __WXGTK24__
854 wrap = GTK_WRAP_WORD;
855 }
856
857 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
858}
859
860void wxTextCtrl::GTKSetJustification()
861{
862 if ( IsMultiLine() )
863 {
864 GtkJustification just;
865 if ( HasFlag(wxTE_RIGHT) )
866 just = GTK_JUSTIFY_RIGHT;
867 else if ( HasFlag(wxTE_CENTRE) )
868 just = GTK_JUSTIFY_CENTER;
869 else // wxTE_LEFT == 0
870 just = GTK_JUSTIFY_LEFT;
871
872 gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
873 }
874 else // single line
875 {
876#ifdef __WXGTK24__
877 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
878 if (!gtk_check_version(2,4,0))
879 {
880 gfloat align;
881 if ( HasFlag(wxTE_RIGHT) )
882 align = 1.0;
883 else if ( HasFlag(wxTE_CENTRE) )
884 align = 0.5;
885 else // single line
886 align = 0.0;
887
888 gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
889 }
890#endif // __WXGTK24__
891 }
892
893}
894
895void wxTextCtrl::SetWindowStyleFlag(long style)
896{
897 long styleOld = GetWindowStyleFlag();
898
899 wxTextCtrlBase::SetWindowStyleFlag(style);
900
901 if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
902 GTKSetEditable();
903
904 if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
905 GTKSetVisibility();
906
907 static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
908 if ( (style & flagsWrap) != (styleOld & flagsWrap) )
909 GTKSetWrapMode();
910
911 static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
912 if ( (style & flagsAlign) != (styleOld & flagsAlign) )
913 GTKSetJustification();
914}
915
916// ----------------------------------------------------------------------------
917// control value
918// ----------------------------------------------------------------------------
919
920wxString wxTextCtrl::GetValue() const
921{
922 wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
923
924 if ( IsMultiLine() )
925 {
926 GtkTextIter start;
927 gtk_text_buffer_get_start_iter( m_buffer, &start );
928 GtkTextIter end;
929 gtk_text_buffer_get_end_iter( m_buffer, &end );
930 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
931
932 return wxGTK_CONV_BACK(text);
933 }
934 else // single line
935 {
936 return wxTextEntry::GetValue();
937 }
938}
939
940wxFontEncoding wxTextCtrl::GetTextEncoding() const
941{
942 // GTK+ uses UTF-8 internally, we need to convert to it but from which
943 // encoding?
944
945 // first check the default text style (we intentionally don't check the
946 // style for the current position as it doesn't make sense for SetValue())
947 const wxTextAttr& style = GetDefaultStyle();
948 wxFontEncoding enc = style.HasFontEncoding() ? style.GetFontEncoding()
949 : wxFONTENCODING_SYSTEM;
950
951 // fall back to the controls font if no style
952 if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
953 enc = GetFont().GetEncoding();
954
955 return enc;
956}
957
958bool wxTextCtrl::IsEmpty() const
959{
960 if ( IsMultiLine() )
961 return gtk_text_buffer_get_char_count(m_buffer) == 0;
962
963 return wxTextEntry::IsEmpty();
964}
965
966void wxTextCtrl::DoSetValue( const wxString &value, int flags )
967{
968 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
969
970 m_modified = false;
971
972 if ( !IsMultiLine() )
973 {
974 wxTextEntry::DoSetValue(value, flags);
975 return;
976 }
977
978 wxFontEncoding enc = m_defaultStyle.HasFont()
979 ? m_defaultStyle.GetFont().GetEncoding()
980 : wxFONTENCODING_SYSTEM;
981 if ( enc == wxFONTENCODING_SYSTEM )
982 enc = GetTextEncoding();
983
984 const wxCharBuffer buffer(wxGTK_CONV_ENC(value, enc));
985 if ( !buffer )
986 {
987 // see comment in WriteText() as to why we must warn the user about
988 // this
989 wxLogWarning(_("Failed to set text in the text control."));
990 return;
991 }
992
993 if ( !(flags & SetValue_SendEvent) )
994 {
995 EnableTextChangedEvents(false);
996 }
997
998 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
999
1000 if ( !m_defaultStyle.IsDefault() )
1001 {
1002 GtkTextIter start, end;
1003 gtk_text_buffer_get_bounds( m_buffer, &start, &end );
1004 wxGtkTextApplyTagsFromAttr(m_widget, m_buffer, m_defaultStyle,
1005 &start, &end);
1006 }
1007
1008 if ( !(flags & SetValue_SendEvent) )
1009 {
1010 EnableTextChangedEvents(true);
1011 }
1012
1013 // This was added after discussion on the list
1014 SetInsertionPoint(0);
1015}
1016
1017void wxTextCtrl::WriteText( const wxString &text )
1018{
1019 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1020
1021 // we're changing the text programmatically
1022 DontMarkDirtyOnNextChange();
1023
1024 if ( !IsMultiLine() )
1025 {
1026 wxTextEntry::WriteText(text);
1027 return;
1028 }
1029
1030 // check if we have a specific style for the current position
1031 wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1032 wxTextAttr style;
1033 if ( GetStyle(GetInsertionPoint(), style) && style.HasFontEncoding() )
1034 {
1035 enc = style.GetFontEncoding();
1036 }
1037
1038 if ( enc == wxFONTENCODING_SYSTEM )
1039 enc = GetTextEncoding();
1040
1041 const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1042 if ( !buffer )
1043 {
1044 // we must log an error here as losing the text like this can be a
1045 // serious problem (e.g. imagine the document edited by user being
1046 // empty instead of containing the correct text)
1047 wxLogWarning(_("Failed to insert text in the control."));
1048 return;
1049 }
1050
1051 // First remove the selection if there is one
1052 // TODO: Is there an easier GTK specific way to do this?
1053 long from, to;
1054 GetSelection(&from, &to);
1055 if (from != to)
1056 Remove(from, to);
1057
1058 // Insert the text
1059 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1060
1061 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1062 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1063 // won't work when frozen, text view is not using m_buffer then
1064 if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
1065 {
1066 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1067 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1068 }
1069}
1070
1071wxString wxTextCtrl::GetLineText( long lineNo ) const
1072{
1073 wxString result;
1074 if ( IsMultiLine() )
1075 {
1076 GtkTextIter line;
1077 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1078
1079 GtkTextIter end = line;
1080 // avoid skipping to the next line end if this one is empty
1081 if ( !gtk_text_iter_ends_line(&line) )
1082 gtk_text_iter_forward_to_line_end(&end);
1083
1084 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1085 result = wxGTK_CONV_BACK(text);
1086 }
1087 else
1088 {
1089 if (lineNo == 0)
1090 result = GetValue();
1091 }
1092 return result;
1093}
1094
1095void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1096{
1097 /* If you implement this, don't forget to update the documentation!
1098 * (file docs/latex/wx/text.tex) */
1099 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1100}
1101
1102bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1103{
1104 if ( IsMultiLine() )
1105 {
1106 GtkTextIter iter;
1107
1108 if (pos > GetLastPosition())
1109 return false;
1110
1111 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1112
1113 if ( y )
1114 *y = gtk_text_iter_get_line(&iter);
1115 if ( x )
1116 *x = gtk_text_iter_get_line_offset(&iter);
1117 }
1118 else // single line control
1119 {
1120 if ( pos <= GTK_ENTRY(m_text)->text_length )
1121 {
1122 if ( y )
1123 *y = 0;
1124 if ( x )
1125 *x = pos;
1126 }
1127 else
1128 {
1129 // index out of bounds
1130 return false;
1131 }
1132 }
1133
1134 return true;
1135}
1136
1137long wxTextCtrl::XYToPosition(long x, long y ) const
1138{
1139 if ( IsSingleLine() )
1140 return 0;
1141
1142 GtkTextIter iter;
1143 if (y >= gtk_text_buffer_get_line_count (m_buffer))
1144 return -1;
1145
1146 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1147 if (x >= gtk_text_iter_get_chars_in_line (&iter))
1148 return -1;
1149
1150 return gtk_text_iter_get_offset(&iter) + x;
1151}
1152
1153int wxTextCtrl::GetLineLength(long lineNo) const
1154{
1155 if ( IsMultiLine() )
1156 {
1157 int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1158 if (lineNo > last_line)
1159 return -1;
1160
1161 GtkTextIter iter;
1162 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1163 // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1164 return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1165 }
1166 else
1167 {
1168 wxString str = GetLineText (lineNo);
1169 return (int) str.length();
1170 }
1171}
1172
1173int wxTextCtrl::GetNumberOfLines() const
1174{
1175 if ( IsMultiLine() )
1176 {
1177 return gtk_text_buffer_get_line_count( m_buffer );
1178 }
1179 else // single line
1180 {
1181 return 1;
1182 }
1183}
1184
1185void wxTextCtrl::SetInsertionPoint( long pos )
1186{
1187 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1188
1189 if ( IsMultiLine() )
1190 {
1191 GtkTextIter iter;
1192 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1193 gtk_text_buffer_place_cursor( m_buffer, &iter );
1194 GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1195 if (IsFrozen())
1196 // defer until Thaw, text view is not using m_buffer now
1197 m_showPositionOnThaw = mark;
1198 else
1199 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1200 }
1201 else // single line
1202 {
1203 wxTextEntry::SetInsertionPoint(pos);
1204 }
1205}
1206
1207void wxTextCtrl::SetEditable( bool editable )
1208{
1209 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1210
1211 if ( IsMultiLine() )
1212 {
1213 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1214 }
1215 else // single line
1216 {
1217 wxTextEntry::SetEditable(editable);
1218 }
1219}
1220
1221bool wxTextCtrl::Enable( bool enable )
1222{
1223 if (!wxWindowBase::Enable(enable))
1224 {
1225 // nothing to do
1226 return false;
1227 }
1228
1229 gtk_widget_set_sensitive( m_text, enable );
1230
1231 return true;
1232}
1233
1234// wxGTK-specific: called recursively by Enable,
1235// to give widgets an opportunity to correct their colours after they
1236// have been changed by Enable
1237void wxTextCtrl::OnEnabled( bool enable )
1238{
1239 // If we have a custom background colour, we use this colour in both
1240 // disabled and enabled mode, or we end up with a different colour under the
1241 // text.
1242 wxColour oldColour = GetBackgroundColour();
1243 if (oldColour.Ok())
1244 {
1245 // Need to set twice or it'll optimize the useful stuff out
1246 if (oldColour == * wxWHITE)
1247 SetBackgroundColour(*wxBLACK);
1248 else
1249 SetBackgroundColour(*wxWHITE);
1250 SetBackgroundColour(oldColour);
1251 }
1252}
1253
1254void wxTextCtrl::MarkDirty()
1255{
1256 m_modified = true;
1257}
1258
1259void wxTextCtrl::DiscardEdits()
1260{
1261 m_modified = false;
1262}
1263
1264// ----------------------------------------------------------------------------
1265// event handling
1266// ----------------------------------------------------------------------------
1267
1268void wxTextCtrl::EnableTextChangedEvents(bool enable)
1269{
1270 if ( enable )
1271 {
1272 g_signal_handlers_unblock_by_func(GetTextObject(),
1273 (gpointer)gtk_text_changed_callback, this);
1274 }
1275 else // disable events
1276 {
1277 g_signal_handlers_block_by_func(GetTextObject(),
1278 (gpointer)gtk_text_changed_callback, this);
1279 }
1280}
1281
1282bool wxTextCtrl::IgnoreTextUpdate()
1283{
1284 if ( m_countUpdatesToIgnore > 0 )
1285 {
1286 m_countUpdatesToIgnore--;
1287
1288 return true;
1289 }
1290
1291 return false;
1292}
1293
1294bool wxTextCtrl::MarkDirtyOnChange()
1295{
1296 if ( m_dontMarkDirty )
1297 {
1298 m_dontMarkDirty = false;
1299
1300 return false;
1301 }
1302
1303 return true;
1304}
1305
1306void wxTextCtrl::SetSelection( long from, long to )
1307{
1308 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1309
1310 if (from == -1 && to == -1)
1311 {
1312 from = 0;
1313 to = GetValue().length();
1314 }
1315
1316 if ( IsMultiLine() )
1317 {
1318 GtkTextIter fromi, toi;
1319 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1320 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1321
1322 gtk_text_buffer_place_cursor( m_buffer, &toi );
1323 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1324 }
1325 else // single line
1326 {
1327 wxTextEntry::SetSelection(from, to);
1328 }
1329}
1330
1331void wxTextCtrl::ShowPosition( long pos )
1332{
1333 if (IsMultiLine())
1334 {
1335 GtkTextIter iter;
1336 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1337 GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1338 gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1339 if (IsFrozen())
1340 // defer until Thaw, text view is not using m_buffer now
1341 m_showPositionOnThaw = mark;
1342 else
1343 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1344 }
1345}
1346
1347wxTextCtrlHitTestResult
1348wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1349{
1350 if ( !IsMultiLine() )
1351 {
1352 // not supported
1353 return wxTE_HT_UNKNOWN;
1354 }
1355
1356 int x, y;
1357 gtk_text_view_window_to_buffer_coords
1358 (
1359 GTK_TEXT_VIEW(m_text),
1360 GTK_TEXT_WINDOW_TEXT,
1361 pt.x, pt.y,
1362 &x, &y
1363 );
1364
1365 GtkTextIter iter;
1366 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1367 if ( pos )
1368 *pos = gtk_text_iter_get_offset(&iter);
1369
1370 return wxTE_HT_ON_TEXT;
1371}
1372
1373long wxTextCtrl::GetInsertionPoint() const
1374{
1375 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1376
1377 if ( IsMultiLine() )
1378 {
1379 // There is no direct accessor for the cursor, but
1380 // internally, the cursor is the "mark" called
1381 // "insert" in the text view's btree structure.
1382
1383 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1384 GtkTextIter cursor;
1385 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1386
1387 return gtk_text_iter_get_offset( &cursor );
1388 }
1389 else
1390 {
1391 return wxTextEntry::GetInsertionPoint();
1392 }
1393}
1394
1395wxTextPos wxTextCtrl::GetLastPosition() const
1396{
1397 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1398
1399 int pos = 0;
1400
1401 if ( IsMultiLine() )
1402 {
1403 GtkTextIter end;
1404 gtk_text_buffer_get_end_iter( m_buffer, &end );
1405
1406 pos = gtk_text_iter_get_offset( &end );
1407 }
1408 else // single line
1409 {
1410 pos = wxTextEntry::GetLastPosition();
1411 }
1412
1413 return (long)pos;
1414}
1415
1416void wxTextCtrl::Remove( long from, long to )
1417{
1418 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1419
1420 if ( IsMultiLine() )
1421 {
1422 GtkTextIter fromi, toi;
1423 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1424 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1425
1426 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1427 }
1428 else // single line
1429 {
1430 wxTextEntry::Remove(from, to);
1431 }
1432}
1433
1434void wxTextCtrl::Cut()
1435{
1436 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1437
1438 if ( IsMultiLine() )
1439 g_signal_emit_by_name (m_text, "cut-clipboard");
1440 else
1441 wxTextEntry::Cut();
1442}
1443
1444void wxTextCtrl::Copy()
1445{
1446 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1447
1448 if ( IsMultiLine() )
1449 g_signal_emit_by_name (m_text, "copy-clipboard");
1450 else
1451 wxTextEntry::Copy();
1452}
1453
1454void wxTextCtrl::Paste()
1455{
1456 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1457
1458 if ( IsMultiLine() )
1459 g_signal_emit_by_name (m_text, "paste-clipboard");
1460 else
1461 wxTextEntry::Paste();
1462}
1463
1464// If the return values from and to are the same, there is no
1465// selection.
1466void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1467{
1468 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1469
1470 if ( !IsMultiLine() )
1471 {
1472 wxTextEntry::GetSelection(fromOut, toOut);
1473 return;
1474 }
1475
1476 gint from, to;
1477
1478 GtkTextIter ifrom, ito;
1479 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1480 {
1481 from = gtk_text_iter_get_offset(&ifrom);
1482 to = gtk_text_iter_get_offset(&ito);
1483
1484 if ( from > to )
1485 {
1486 // exchange them to be compatible with wxMSW
1487 gint tmp = from;
1488 from = to;
1489 to = tmp;
1490 }
1491 }
1492 else // no selection
1493 {
1494 from =
1495 to = GetInsertionPoint();
1496 }
1497
1498 if ( fromOut )
1499 *fromOut = from;
1500 if ( toOut )
1501 *toOut = to;
1502}
1503
1504
1505bool wxTextCtrl::IsEditable() const
1506{
1507 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1508
1509 if ( IsMultiLine() )
1510 {
1511 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1512 }
1513 else
1514 {
1515 return wxTextEntry::IsEditable();
1516 }
1517}
1518
1519bool wxTextCtrl::IsModified() const
1520{
1521 return m_modified;
1522}
1523
1524void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1525{
1526 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1527
1528 if ( key_event.GetKeyCode() == WXK_RETURN )
1529 {
1530 if ( HasFlag(wxTE_PROCESS_ENTER) )
1531 {
1532 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1533 event.SetEventObject(this);
1534 event.SetString(GetValue());
1535 if ( GetEventHandler()->ProcessEvent(event) )
1536 return;
1537 }
1538
1539 // FIXME: this is not the right place to do it, wxDialog::OnCharHook()
1540 // probably is
1541 if ( IsSingleLine() )
1542 {
1543 // This will invoke the dialog default action, such
1544 // as the clicking the default button.
1545
1546 wxWindow *top_frame = m_parent;
1547 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1548 top_frame = top_frame->GetParent();
1549
1550 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1551 {
1552 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1553
1554 if (window->default_widget)
1555 {
1556 gtk_widget_activate (window->default_widget);
1557 return;
1558 }
1559 }
1560 }
1561 }
1562
1563 key_event.Skip();
1564}
1565
1566GtkWidget* wxTextCtrl::GetConnectWidget()
1567{
1568 return GTK_WIDGET(m_text);
1569}
1570
1571GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1572{
1573 if ( IsMultiLine() )
1574 {
1575 return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1576 GTK_TEXT_WINDOW_TEXT );
1577 }
1578 else
1579 {
1580 return GTK_ENTRY(m_text)->text_area;
1581 }
1582}
1583
1584// the font will change for subsequent text insertiongs
1585bool wxTextCtrl::SetFont( const wxFont &font )
1586{
1587 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1588
1589 if ( !wxTextCtrlBase::SetFont(font) )
1590 {
1591 // font didn't change, nothing to do
1592 return false;
1593 }
1594
1595 if ( IsMultiLine() )
1596 {
1597 SetUpdateFont(true);
1598
1599 m_defaultStyle.SetFont(font);
1600
1601 ChangeFontGlobally();
1602 }
1603
1604 return true;
1605}
1606
1607void wxTextCtrl::ChangeFontGlobally()
1608{
1609 // this method is very inefficient and hence should be called as rarely as
1610 // possible!
1611 //
1612 // TODO: it can be implemented much more efficiently for GTK2
1613 wxASSERT_MSG( IsMultiLine(),
1614 _T("shouldn't be called for single line controls") );
1615
1616 wxString value = GetValue();
1617 if ( !value.empty() )
1618 {
1619 SetUpdateFont(false);
1620
1621 Clear();
1622 AppendText(value);
1623 }
1624}
1625
1626bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1627{
1628 if ( !wxControl::SetForegroundColour(colour) )
1629 return false;
1630
1631 // update default fg colour too
1632 m_defaultStyle.SetTextColour(colour);
1633
1634 return true;
1635}
1636
1637bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1638{
1639 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1640
1641 if ( !wxControl::SetBackgroundColour( colour ) )
1642 return false;
1643
1644 if (!m_backgroundColour.Ok())
1645 return false;
1646
1647 // change active background color too
1648 m_defaultStyle.SetBackgroundColour( colour );
1649
1650 return true;
1651}
1652
1653bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1654{
1655 if ( IsMultiLine() )
1656 {
1657 if ( style.IsDefault() )
1658 {
1659 // nothing to do
1660 return true;
1661 }
1662
1663 gint l = gtk_text_buffer_get_char_count( m_buffer );
1664
1665 wxCHECK_MSG( start >= 0 && end <= l, false,
1666 _T("invalid range in wxTextCtrl::SetStyle") );
1667
1668 GtkTextIter starti, endi;
1669 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1670 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1671
1672 wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, style, &starti, &endi );
1673
1674 return true;
1675 }
1676 //else: single line text controls don't support styles
1677
1678 return false;
1679}
1680
1681void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1682{
1683 gtk_widget_modify_style(m_text, style);
1684}
1685
1686void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1687{
1688 Cut();
1689}
1690
1691void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1692{
1693 Copy();
1694}
1695
1696void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1697{
1698 Paste();
1699}
1700
1701void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1702{
1703 Undo();
1704}
1705
1706void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1707{
1708 Redo();
1709}
1710
1711void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1712{
1713 event.Enable( CanCut() );
1714}
1715
1716void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1717{
1718 event.Enable( CanCopy() );
1719}
1720
1721void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1722{
1723 event.Enable( CanPaste() );
1724}
1725
1726void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1727{
1728 event.Enable( CanUndo() );
1729}
1730
1731void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1732{
1733 event.Enable( CanRedo() );
1734}
1735
1736wxSize wxTextCtrl::DoGetBestSize() const
1737{
1738 // FIXME should be different for multi-line controls...
1739 wxSize ret( wxControl::DoGetBestSize() );
1740 wxSize best(80, ret.y);
1741 CacheBestSize(best);
1742 return best;
1743}
1744
1745// ----------------------------------------------------------------------------
1746// freeze/thaw
1747// ----------------------------------------------------------------------------
1748
1749void wxTextCtrl::Freeze()
1750{
1751 wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1752
1753 if ( HasFlag(wxTE_MULTILINE) )
1754 {
1755 if (m_freezeCount++ == 0)
1756 {
1757 // freeze textview updates and remove buffer
1758 g_signal_connect (m_text, "expose_event",
1759 G_CALLBACK (gtk_text_exposed_callback), this);
1760 g_signal_connect (m_widget, "expose_event",
1761 G_CALLBACK (gtk_text_exposed_callback), this);
1762 gtk_widget_set_sensitive(m_widget, false);
1763 g_object_ref(m_buffer);
1764 GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1765 GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
1766 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1767 // gtk_text_view_set_buffer adds its own reference
1768 g_object_unref(buf_new);
1769 // This mark should be deleted when the buffer is changed,
1770 // but it's not (in GTK+ up to at least 2.10.6).
1771 // Otherwise these anonymous marks start to build up in the buffer,
1772 // and Freeze takes longer and longer each time it is called.
1773 if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1774 gtk_text_buffer_delete_mark(m_buffer, mark);
1775 }
1776 }
1777}
1778
1779void wxTextCtrl::Thaw()
1780{
1781 if ( HasFlag(wxTE_MULTILINE) )
1782 {
1783 wxCHECK_RET(m_freezeCount != 0, _T("Thaw() without matching Freeze()"));
1784
1785 if (--m_freezeCount == 0)
1786 {
1787 // Reattach buffer and thaw textview updates
1788 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1789 g_object_unref(m_buffer);
1790 gtk_widget_set_sensitive(m_widget, true);
1791 g_signal_handlers_disconnect_by_func (m_widget,
1792 (gpointer) gtk_text_exposed_callback, this);
1793 g_signal_handlers_disconnect_by_func (m_text,
1794 (gpointer) gtk_text_exposed_callback, this);
1795 if (m_showPositionOnThaw != NULL)
1796 {
1797 gtk_text_view_scroll_mark_onscreen(
1798 GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1799 m_showPositionOnThaw = NULL;
1800 }
1801 }
1802 }
1803}
1804
1805// ----------------------------------------------------------------------------
1806// wxTextUrlEvent passing if style & wxTE_AUTO_URL
1807// ----------------------------------------------------------------------------
1808
1809// FIXME: when dragging on a link the sample gets an "Unknown event".
1810// This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1811// a buggy sample, or something else
1812void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1813{
1814 event.Skip();
1815 if( !HasFlag(wxTE_AUTO_URL) )
1816 return;
1817
1818 gint x, y;
1819 GtkTextIter start, end;
1820 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1821 "wxUrl");
1822
1823 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1824 event.GetX(), event.GetY(), &x, &y);
1825
1826 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1827 if (!gtk_text_iter_has_tag(&end, tag))
1828 {
1829 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1830 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1831 return;
1832 }
1833
1834 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1835 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1836
1837 start = end;
1838 if(!gtk_text_iter_begins_tag(&start, tag))
1839 gtk_text_iter_backward_to_tag_toggle(&start, tag);
1840 if(!gtk_text_iter_ends_tag(&end, tag))
1841 gtk_text_iter_forward_to_tag_toggle(&end, tag);
1842
1843 // Native context menu is probably not desired on an URL.
1844 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1845 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1846 event.Skip(false);
1847
1848 wxTextUrlEvent url_event(m_windowId, event,
1849 gtk_text_iter_get_offset(&start),
1850 gtk_text_iter_get_offset(&end));
1851
1852 InitCommandEvent(url_event);
1853 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1854 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1855 GetEventHandler()->ProcessEvent(url_event);
1856}
1857
1858bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1859{
1860 bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1861
1862 // GtkTextView starts a drag operation when left mouse button is pressed
1863 // and ends it when it is released and if it doesn't get the release event
1864 // the next click on a control results in an assertion failure inside
1865 // gtk_text_view_start_selection_drag() which simply *kills* the program
1866 // without anything we can do about it, so always let GTK+ have this event
1867 return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1868}
1869
1870// static
1871wxVisualAttributes
1872wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1873{
1874 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1875}
1876
1877#endif // wxUSE_TEXTCTRL
wxWidgets (Impactor)