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