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#9605: Documentation Corrections for richtextctrl.h
[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// wxTextCtrl
562//-----------------------------------------------------------------------------
563
564IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
565
566BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
567 EVT_CHAR(wxTextCtrl::OnChar)
568
569 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
570 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
571 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
572 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
573 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
574
575 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
576 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
577 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
578 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
579 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
580
581 // wxTE_AUTO_URL wxTextUrl support. Currently only creates
582 // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
583 EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
584 EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
585 EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
586 EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
587 EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
588 EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
589 EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
590END_EVENT_TABLE()
591
592void wxTextCtrl::Init()
593{
594 m_dontMarkDirty =
595 m_modified = false;
596
597 m_countUpdatesToIgnore = 0;
598
599 SetUpdateFont(false);
600
601 m_text = NULL;
602 m_showPositionOnThaw = NULL;
603 m_gdkHandCursor = NULL;
604 m_gdkXTermCursor = NULL;
605}
606
607wxTextCtrl::~wxTextCtrl()
608{
609 if(m_gdkHandCursor)
610 gdk_cursor_unref(m_gdkHandCursor);
611 if(m_gdkXTermCursor)
612 gdk_cursor_unref(m_gdkXTermCursor);
613}
614
615wxTextCtrl::wxTextCtrl( wxWindow *parent,
616 wxWindowID id,
617 const wxString &value,
618 const wxPoint &pos,
619 const wxSize &size,
620 long style,
621 const wxValidator& validator,
622 const wxString &name )
623{
624 Init();
625
626 Create( parent, id, value, pos, size, style, validator, name );
627}
628
629bool wxTextCtrl::Create( wxWindow *parent,
630 wxWindowID id,
631 const wxString &value,
632 const wxPoint &pos,
633 const wxSize &size,
634 long style,
635 const wxValidator& validator,
636 const wxString &name )
637{
638 if (!PreCreation( parent, pos, size ) ||
639 !CreateBase( parent, id, pos, size, style, validator, name ))
640 {
641 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
642 return false;
643 }
644
645 bool multi_line = (style & wxTE_MULTILINE) != 0;
646
647 if (multi_line)
648 {
649 // Create view
650 m_text = gtk_text_view_new();
651
652 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
653
654 // create "ShowPosition" marker
655 GtkTextIter iter;
656 gtk_text_buffer_get_start_iter(m_buffer, &iter);
657 gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
658
659 // create scrolled window
660 m_widget = gtk_scrolled_window_new( NULL, NULL );
661 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
662 GTK_POLICY_AUTOMATIC,
663 style & wxTE_NO_VSCROLL
664 ? GTK_POLICY_NEVER
665 : GTK_POLICY_AUTOMATIC );
666 // for ScrollLines/Pages
667 m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
668
669 // Insert view into scrolled window
670 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
671
672 GTKSetWrapMode();
673
674 GtkScrolledWindowSetBorder(m_widget, style);
675
676 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
677
678 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
679 }
680 else
681 {
682 // a single-line text control: no need for scrollbars
683 m_widget =
684 m_text = gtk_entry_new();
685
686 if (style & wxNO_BORDER)
687 g_object_set (m_text, "has-frame", FALSE, NULL);
688
689 }
690
691 m_parent->DoAddChild( this );
692
693 m_focusWidget = m_text;
694
695 PostCreation(size);
696
697 if (multi_line)
698 {
699 gtk_widget_show(m_text);
700 }
701
702 // We want to be notified about text changes.
703 if (multi_line)
704 {
705 g_signal_connect (m_buffer, "changed",
706 G_CALLBACK (gtk_text_changed_callback), this);
707 }
708 else
709 {
710 g_signal_connect (m_text, "changed",
711 G_CALLBACK (gtk_text_changed_callback), this);
712 }
713
714 if (!value.empty())
715 {
716 SetValue( value );
717 }
718
719 if (style & wxTE_PASSWORD)
720 GTKSetVisibility();
721
722 if (style & wxTE_READONLY)
723 GTKSetEditable();
724
725 // left justification (alignment) is the default anyhow
726 if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
727 GTKSetJustification();
728
729 if (multi_line)
730 {
731 // Handle URLs on multi-line controls with wxTE_AUTO_URL style
732 if (style & wxTE_AUTO_URL)
733 {
734 GtkTextIter start, end;
735 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
736 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
737
738 // We create our wxUrl tag here for slight efficiency gain - we
739 // don't have to check for the tag existance in callbacks,
740 // hereby it's guaranteed to exist.
741 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
742 "foreground", "blue",
743 "underline", PANGO_UNDERLINE_SINGLE,
744 NULL);
745
746 // Check for URLs after each text change
747 g_signal_connect_after (m_buffer, "insert_text",
748 G_CALLBACK (au_insert_text_callback), this);
749 g_signal_connect_after (m_buffer, "delete_range",
750 G_CALLBACK (au_delete_range_callback), this);
751
752 // Block all wxUrl tag applying unless we do it ourselves, in which case we
753 // block this callback temporarily. This takes care of gtk+ internal
754 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
755 // which is undesired because only a part of the URL might be copied.
756 // The insert-text signal emitted inside it will take care of newly formed
757 // or wholly copied URLs.
758 g_signal_connect (m_buffer, "apply_tag",
759 G_CALLBACK (au_apply_tag_callback), NULL);
760
761 // Check for URLs in the initial string passed to Create
762 gtk_text_buffer_get_start_iter(m_buffer, &start);
763 gtk_text_buffer_get_end_iter(m_buffer, &end);
764 au_check_range(&start, &end);
765 }
766 }
767 else // single line
768 {
769 // do the right thing with Enter presses depending on whether we have
770 // wxTE_PROCESS_ENTER or not
771 GTKSetActivatesDefault();
772 }
773
774
775 g_signal_connect (m_text, "copy-clipboard",
776 G_CALLBACK (gtk_copy_clipboard_callback), this);
777 g_signal_connect (m_text, "cut-clipboard",
778 G_CALLBACK (gtk_cut_clipboard_callback), this);
779 g_signal_connect (m_text, "paste-clipboard",
780 G_CALLBACK (gtk_paste_clipboard_callback), this);
781
782 m_cursor = wxCursor( wxCURSOR_IBEAM );
783
784 return true;
785}
786
787GtkEditable *wxTextCtrl::GetEditable() const
788{
789 wxCHECK_MSG( IsSingleLine(), NULL, "shouldn't be called for multiline" );
790
791 return GTK_EDITABLE(m_text);
792}
793
794// ----------------------------------------------------------------------------
795// flags handling
796// ----------------------------------------------------------------------------
797
798void wxTextCtrl::GTKSetEditable()
799{
800 gboolean editable = !HasFlag(wxTE_READONLY);
801 if ( IsSingleLine() )
802 gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
803 else
804 gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
805}
806
807void wxTextCtrl::GTKSetVisibility()
808{
809 wxCHECK_RET( IsSingleLine(),
810 "wxTE_PASSWORD is for single line text controls only" );
811
812 gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
813}
814
815void wxTextCtrl::GTKSetActivatesDefault()
816{
817 wxCHECK_RET( IsSingleLine(),
818 "wxTE_PROCESS_ENTER is for single line text controls only" );
819
820 gtk_entry_set_activates_default(GTK_ENTRY(m_text),
821 !HasFlag(wxTE_PROCESS_ENTER));
822}
823
824void wxTextCtrl::GTKSetWrapMode()
825{
826 // no wrapping in single line controls
827 if ( !IsMultiLine() )
828 return;
829
830 // translate wx wrapping style to GTK+
831 GtkWrapMode wrap;
832 if ( HasFlag( wxTE_DONTWRAP ) )
833 wrap = GTK_WRAP_NONE;
834 else if ( HasFlag( wxTE_CHARWRAP ) )
835 wrap = GTK_WRAP_CHAR;
836 else if ( HasFlag( wxTE_WORDWRAP ) )
837 wrap = GTK_WRAP_WORD;
838 else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
839 wrap = GTK_WRAP_WORD_CHAR;
840
841 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
842}
843
844void wxTextCtrl::GTKSetJustification()
845{
846 if ( IsMultiLine() )
847 {
848 GtkJustification just;
849 if ( HasFlag(wxTE_RIGHT) )
850 just = GTK_JUSTIFY_RIGHT;
851 else if ( HasFlag(wxTE_CENTRE) )
852 just = GTK_JUSTIFY_CENTER;
853 else // wxTE_LEFT == 0
854 just = GTK_JUSTIFY_LEFT;
855
856 gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
857 }
858 else // single line
859 {
860 gfloat align;
861 if ( HasFlag(wxTE_RIGHT) )
862 align = 1.0;
863 else if ( HasFlag(wxTE_CENTRE) )
864 align = 0.5;
865 else // single line
866 align = 0.0;
867
868 gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
869 }
870}
871
872void wxTextCtrl::SetWindowStyleFlag(long style)
873{
874 long styleOld = GetWindowStyleFlag();
875
876 wxTextCtrlBase::SetWindowStyleFlag(style);
877
878 if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
879 GTKSetEditable();
880
881 if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
882 GTKSetVisibility();
883
884 if ( (style & wxTE_PROCESS_ENTER) != (styleOld & wxTE_PROCESS_ENTER) )
885 GTKSetActivatesDefault();
886
887 static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
888 if ( (style & flagsWrap) != (styleOld & flagsWrap) )
889 GTKSetWrapMode();
890
891 static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
892 if ( (style & flagsAlign) != (styleOld & flagsAlign) )
893 GTKSetJustification();
894}
895
896// ----------------------------------------------------------------------------
897// control value
898// ----------------------------------------------------------------------------
899
900wxString wxTextCtrl::GetValue() const
901{
902 wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
903
904 if ( IsMultiLine() )
905 {
906 GtkTextIter start;
907 gtk_text_buffer_get_start_iter( m_buffer, &start );
908 GtkTextIter end;
909 gtk_text_buffer_get_end_iter( m_buffer, &end );
910 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
911
912 return wxGTK_CONV_BACK(text);
913 }
914 else // single line
915 {
916 return wxTextEntry::GetValue();
917 }
918}
919
920wxFontEncoding wxTextCtrl::GetTextEncoding() const
921{
922 // GTK+ uses UTF-8 internally, we need to convert to it but from which
923 // encoding?
924
925 // first check the default text style (we intentionally don't check the
926 // style for the current position as it doesn't make sense for SetValue())
927 const wxTextAttr& style = GetDefaultStyle();
928 wxFontEncoding enc = style.HasFontEncoding() ? style.GetFontEncoding()
929 : wxFONTENCODING_SYSTEM;
930
931 // fall back to the controls font if no style
932 if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
933 enc = GetFont().GetEncoding();
934
935 return enc;
936}
937
938bool wxTextCtrl::IsEmpty() const
939{
940 if ( IsMultiLine() )
941 return gtk_text_buffer_get_char_count(m_buffer) == 0;
942
943 return wxTextEntry::IsEmpty();
944}
945
946void wxTextCtrl::DoSetValue( const wxString &value, int flags )
947{
948 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
949
950 m_modified = false;
951
952 if ( !IsMultiLine() )
953 {
954 wxTextEntry::DoSetValue(value, flags);
955 return;
956 }
957
958 if (value.IsEmpty())
959 {
960 if ( !(flags & SetValue_SendEvent) )
961 EnableTextChangedEvents(false);
962
963 gtk_text_buffer_set_text( m_buffer, "", 0 );
964
965 if ( !(flags & SetValue_SendEvent) )
966 EnableTextChangedEvents(true);
967
968 return;
969 }
970
971#ifdef wxUSE_UNICODE
972 const wxCharBuffer buffer(value.utf8_str());
973#else
974 wxFontEncoding enc = m_defaultStyle.HasFont()
975 ? m_defaultStyle.GetFont().GetEncoding()
976 : wxFONTENCODING_SYSTEM;
977 if ( enc == wxFONTENCODING_SYSTEM )
978 enc = GetTextEncoding();
979
980 const wxCharBuffer buffer(wxGTK_CONV_ENC(value, enc));
981 if ( !buffer )
982 {
983 // see comment in WriteText() as to why we must warn the user about
984 // this
985 wxLogWarning(_("Failed to set text in the text control."));
986 return;
987 }
988#endif
989
990 if ( !(flags & SetValue_SendEvent) )
991 {
992 EnableTextChangedEvents(false);
993 }
994
995 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
996
997 if ( !m_defaultStyle.IsDefault() )
998 {
999 GtkTextIter start, end;
1000 gtk_text_buffer_get_bounds( m_buffer, &start, &end );
1001 wxGtkTextApplyTagsFromAttr(m_widget, m_buffer, m_defaultStyle,
1002 &start, &end);
1003 }
1004
1005 if ( !(flags & SetValue_SendEvent) )
1006 {
1007 EnableTextChangedEvents(true);
1008 }
1009
1010 // This was added after discussion on the list
1011 SetInsertionPoint(0);
1012}
1013
1014void wxTextCtrl::WriteText( const wxString &text )
1015{
1016 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1017
1018 // we're changing the text programmatically
1019 DontMarkDirtyOnNextChange();
1020
1021 if ( !IsMultiLine() )
1022 {
1023 wxTextEntry::WriteText(text);
1024 return;
1025 }
1026
1027#ifdef wxUSE_UNICODE
1028 const wxCharBuffer buffer(text.utf8_str());
1029#else
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#endif
1051
1052 // First remove the selection if there is one
1053 // TODO: Is there an easier GTK specific way to do this?
1054 long from, to;
1055 GetSelection(&from, &to);
1056 if (from != to)
1057 Remove(from, to);
1058
1059 // Insert the text
1060 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1061
1062 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1063 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1064 // won't work when frozen, text view is not using m_buffer then
1065 if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
1066 {
1067 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1068 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1069 }
1070}
1071
1072wxString wxTextCtrl::GetLineText( long lineNo ) const
1073{
1074 wxString result;
1075 if ( IsMultiLine() )
1076 {
1077 GtkTextIter line;
1078 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1079
1080 GtkTextIter end = line;
1081 // avoid skipping to the next line end if this one is empty
1082 if ( !gtk_text_iter_ends_line(&line) )
1083 gtk_text_iter_forward_to_line_end(&end);
1084
1085 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1086 result = wxGTK_CONV_BACK(text);
1087 }
1088 else
1089 {
1090 if (lineNo == 0)
1091 result = GetValue();
1092 }
1093 return result;
1094}
1095
1096void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1097{
1098 /* If you implement this, don't forget to update the documentation!
1099 * (file docs/latex/wx/text.tex) */
1100 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1101}
1102
1103bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1104{
1105 if ( IsMultiLine() )
1106 {
1107 GtkTextIter iter;
1108
1109 if (pos > GetLastPosition())
1110 return false;
1111
1112 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1113
1114 if ( y )
1115 *y = gtk_text_iter_get_line(&iter);
1116 if ( x )
1117 *x = gtk_text_iter_get_line_offset(&iter);
1118 }
1119 else // single line control
1120 {
1121 if ( pos <= GTK_ENTRY(m_text)->text_length )
1122 {
1123 if ( y )
1124 *y = 0;
1125 if ( x )
1126 *x = pos;
1127 }
1128 else
1129 {
1130 // index out of bounds
1131 return false;
1132 }
1133 }
1134
1135 return true;
1136}
1137
1138long wxTextCtrl::XYToPosition(long x, long y ) const
1139{
1140 if ( IsSingleLine() )
1141 return 0;
1142
1143 GtkTextIter iter;
1144 if (y >= gtk_text_buffer_get_line_count (m_buffer))
1145 return -1;
1146
1147 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1148 if (x >= gtk_text_iter_get_chars_in_line (&iter))
1149 return -1;
1150
1151 return gtk_text_iter_get_offset(&iter) + x;
1152}
1153
1154int wxTextCtrl::GetLineLength(long lineNo) const
1155{
1156 if ( IsMultiLine() )
1157 {
1158 int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1159 if (lineNo > last_line)
1160 return -1;
1161
1162 GtkTextIter iter;
1163 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1164 // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1165 return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1166 }
1167 else
1168 {
1169 wxString str = GetLineText (lineNo);
1170 return (int) str.length();
1171 }
1172}
1173
1174int wxTextCtrl::GetNumberOfLines() const
1175{
1176 if ( IsMultiLine() )
1177 {
1178 return gtk_text_buffer_get_line_count( m_buffer );
1179 }
1180 else // single line
1181 {
1182 return 1;
1183 }
1184}
1185
1186void wxTextCtrl::SetInsertionPoint( long pos )
1187{
1188 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1189
1190 if ( IsMultiLine() )
1191 {
1192 GtkTextIter iter;
1193 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1194 gtk_text_buffer_place_cursor( m_buffer, &iter );
1195 GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1196 if (IsFrozen())
1197 // defer until Thaw, text view is not using m_buffer now
1198 m_showPositionOnThaw = mark;
1199 else
1200 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1201 }
1202 else // single line
1203 {
1204 wxTextEntry::SetInsertionPoint(pos);
1205 }
1206}
1207
1208void wxTextCtrl::SetEditable( bool editable )
1209{
1210 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1211
1212 if ( IsMultiLine() )
1213 {
1214 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1215 }
1216 else // single line
1217 {
1218 wxTextEntry::SetEditable(editable);
1219 }
1220}
1221
1222bool wxTextCtrl::Enable( bool enable )
1223{
1224 if (!wxWindowBase::Enable(enable))
1225 {
1226 // nothing to do
1227 return false;
1228 }
1229
1230 gtk_widget_set_sensitive( m_text, enable );
1231
1232 return true;
1233}
1234
1235// wxGTK-specific: called recursively by Enable,
1236// to give widgets an opportunity to correct their colours after they
1237// have been changed by Enable
1238void wxTextCtrl::OnEnabled(bool WXUNUSED(enable))
1239{
1240 // If we have a custom background colour, we use this colour in both
1241 // disabled and enabled mode, or we end up with a different colour under the
1242 // text.
1243 wxColour oldColour = GetBackgroundColour();
1244 if (oldColour.Ok())
1245 {
1246 // Need to set twice or it'll optimize the useful stuff out
1247 if (oldColour == * wxWHITE)
1248 SetBackgroundColour(*wxBLACK);
1249 else
1250 SetBackgroundColour(*wxWHITE);
1251 SetBackgroundColour(oldColour);
1252 }
1253}
1254
1255void wxTextCtrl::MarkDirty()
1256{
1257 m_modified = true;
1258}
1259
1260void wxTextCtrl::DiscardEdits()
1261{
1262 m_modified = false;
1263}
1264
1265// ----------------------------------------------------------------------------
1266// event handling
1267// ----------------------------------------------------------------------------
1268
1269void wxTextCtrl::EnableTextChangedEvents(bool enable)
1270{
1271 if ( enable )
1272 {
1273 g_signal_handlers_unblock_by_func(GetTextObject(),
1274 (gpointer)gtk_text_changed_callback, this);
1275 }
1276 else // disable events
1277 {
1278 g_signal_handlers_block_by_func(GetTextObject(),
1279 (gpointer)gtk_text_changed_callback, this);
1280 }
1281}
1282
1283bool wxTextCtrl::IgnoreTextUpdate()
1284{
1285 if ( m_countUpdatesToIgnore > 0 )
1286 {
1287 m_countUpdatesToIgnore--;
1288
1289 return true;
1290 }
1291
1292 return false;
1293}
1294
1295bool wxTextCtrl::MarkDirtyOnChange()
1296{
1297 if ( m_dontMarkDirty )
1298 {
1299 m_dontMarkDirty = false;
1300
1301 return false;
1302 }
1303
1304 return true;
1305}
1306
1307void wxTextCtrl::SetSelection( long from, long to )
1308{
1309 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1310
1311 if (from == -1 && to == -1)
1312 {
1313 from = 0;
1314 to = GetValue().length();
1315 }
1316
1317 if ( IsMultiLine() )
1318 {
1319 GtkTextIter fromi, toi;
1320 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1321 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1322
1323 gtk_text_buffer_place_cursor( m_buffer, &toi );
1324 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1325 }
1326 else // single line
1327 {
1328 wxTextEntry::SetSelection(from, to);
1329 }
1330}
1331
1332void wxTextCtrl::ShowPosition( long pos )
1333{
1334 if (IsMultiLine())
1335 {
1336 GtkTextIter iter;
1337 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1338 GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1339 gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1340 if (IsFrozen())
1341 // defer until Thaw, text view is not using m_buffer now
1342 m_showPositionOnThaw = mark;
1343 else
1344 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1345 }
1346}
1347
1348wxTextCtrlHitTestResult
1349wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1350{
1351 if ( !IsMultiLine() )
1352 {
1353 // not supported
1354 return wxTE_HT_UNKNOWN;
1355 }
1356
1357 int x, y;
1358 gtk_text_view_window_to_buffer_coords
1359 (
1360 GTK_TEXT_VIEW(m_text),
1361 GTK_TEXT_WINDOW_TEXT,
1362 pt.x, pt.y,
1363 &x, &y
1364 );
1365
1366 GtkTextIter iter;
1367 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1368 if ( pos )
1369 *pos = gtk_text_iter_get_offset(&iter);
1370
1371 return wxTE_HT_ON_TEXT;
1372}
1373
1374long wxTextCtrl::GetInsertionPoint() const
1375{
1376 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1377
1378 if ( IsMultiLine() )
1379 {
1380 // There is no direct accessor for the cursor, but
1381 // internally, the cursor is the "mark" called
1382 // "insert" in the text view's btree structure.
1383
1384 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1385 GtkTextIter cursor;
1386 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1387
1388 return gtk_text_iter_get_offset( &cursor );
1389 }
1390 else
1391 {
1392 return wxTextEntry::GetInsertionPoint();
1393 }
1394}
1395
1396wxTextPos wxTextCtrl::GetLastPosition() const
1397{
1398 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1399
1400 int pos = 0;
1401
1402 if ( IsMultiLine() )
1403 {
1404 GtkTextIter end;
1405 gtk_text_buffer_get_end_iter( m_buffer, &end );
1406
1407 pos = gtk_text_iter_get_offset( &end );
1408 }
1409 else // single line
1410 {
1411 pos = wxTextEntry::GetLastPosition();
1412 }
1413
1414 return (long)pos;
1415}
1416
1417void wxTextCtrl::Remove( long from, long to )
1418{
1419 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1420
1421 if ( IsMultiLine() )
1422 {
1423 GtkTextIter fromi, toi;
1424 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1425 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1426
1427 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1428 }
1429 else // single line
1430 {
1431 wxTextEntry::Remove(from, to);
1432 }
1433}
1434
1435void wxTextCtrl::Cut()
1436{
1437 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1438
1439 if ( IsMultiLine() )
1440 g_signal_emit_by_name (m_text, "cut-clipboard");
1441 else
1442 wxTextEntry::Cut();
1443}
1444
1445void wxTextCtrl::Copy()
1446{
1447 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1448
1449 if ( IsMultiLine() )
1450 g_signal_emit_by_name (m_text, "copy-clipboard");
1451 else
1452 wxTextEntry::Copy();
1453}
1454
1455void wxTextCtrl::Paste()
1456{
1457 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1458
1459 if ( IsMultiLine() )
1460 g_signal_emit_by_name (m_text, "paste-clipboard");
1461 else
1462 wxTextEntry::Paste();
1463}
1464
1465// If the return values from and to are the same, there is no
1466// selection.
1467void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1468{
1469 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1470
1471 if ( !IsMultiLine() )
1472 {
1473 wxTextEntry::GetSelection(fromOut, toOut);
1474 return;
1475 }
1476
1477 gint from, to;
1478
1479 GtkTextIter ifrom, ito;
1480 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1481 {
1482 from = gtk_text_iter_get_offset(&ifrom);
1483 to = gtk_text_iter_get_offset(&ito);
1484
1485 if ( from > to )
1486 {
1487 // exchange them to be compatible with wxMSW
1488 gint tmp = from;
1489 from = to;
1490 to = tmp;
1491 }
1492 }
1493 else // no selection
1494 {
1495 from =
1496 to = GetInsertionPoint();
1497 }
1498
1499 if ( fromOut )
1500 *fromOut = from;
1501 if ( toOut )
1502 *toOut = to;
1503}
1504
1505
1506bool wxTextCtrl::IsEditable() const
1507{
1508 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1509
1510 if ( IsMultiLine() )
1511 {
1512 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1513 }
1514 else
1515 {
1516 return wxTextEntry::IsEditable();
1517 }
1518}
1519
1520bool wxTextCtrl::IsModified() const
1521{
1522 return m_modified;
1523}
1524
1525void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1526{
1527 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1528
1529 if ( key_event.GetKeyCode() == WXK_RETURN )
1530 {
1531 if ( HasFlag(wxTE_PROCESS_ENTER) )
1532 {
1533 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1534 event.SetEventObject(this);
1535 event.SetString(GetValue());
1536 if ( HandleWindowEvent(event) )
1537 return;
1538 }
1539 }
1540
1541 key_event.Skip();
1542}
1543
1544GtkWidget* wxTextCtrl::GetConnectWidget()
1545{
1546 return GTK_WIDGET(m_text);
1547}
1548
1549GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1550{
1551 if ( IsMultiLine() )
1552 {
1553 return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1554 GTK_TEXT_WINDOW_TEXT );
1555 }
1556 else
1557 {
1558 return GTK_ENTRY(m_text)->text_area;
1559 }
1560}
1561
1562// the font will change for subsequent text insertiongs
1563bool wxTextCtrl::SetFont( const wxFont &font )
1564{
1565 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1566
1567 if ( !wxTextCtrlBase::SetFont(font) )
1568 {
1569 // font didn't change, nothing to do
1570 return false;
1571 }
1572
1573 if ( IsMultiLine() )
1574 {
1575 SetUpdateFont(true);
1576
1577 m_defaultStyle.SetFont(font);
1578
1579 ChangeFontGlobally();
1580 }
1581
1582 return true;
1583}
1584
1585void wxTextCtrl::ChangeFontGlobally()
1586{
1587 // this method is very inefficient and hence should be called as rarely as
1588 // possible!
1589 //
1590 // TODO: it can be implemented much more efficiently for GTK2
1591 wxASSERT_MSG( IsMultiLine(),
1592 _T("shouldn't be called for single line controls") );
1593
1594 wxString value = GetValue();
1595 if ( !value.empty() )
1596 {
1597 SetUpdateFont(false);
1598
1599 Clear();
1600 AppendText(value);
1601 }
1602}
1603
1604bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1605{
1606 if ( !wxControl::SetForegroundColour(colour) )
1607 return false;
1608
1609 // update default fg colour too
1610 m_defaultStyle.SetTextColour(colour);
1611
1612 return true;
1613}
1614
1615bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1616{
1617 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1618
1619 if ( !wxControl::SetBackgroundColour( colour ) )
1620 return false;
1621
1622 if (!m_backgroundColour.Ok())
1623 return false;
1624
1625 // change active background color too
1626 m_defaultStyle.SetBackgroundColour( colour );
1627
1628 return true;
1629}
1630
1631bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1632{
1633 if ( IsMultiLine() )
1634 {
1635 if ( style.IsDefault() )
1636 {
1637 // nothing to do
1638 return true;
1639 }
1640
1641 gint l = gtk_text_buffer_get_char_count( m_buffer );
1642
1643 wxCHECK_MSG( start >= 0 && end <= l, false,
1644 _T("invalid range in wxTextCtrl::SetStyle") );
1645
1646 GtkTextIter starti, endi;
1647 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1648 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1649
1650 wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, style, &starti, &endi );
1651
1652 return true;
1653 }
1654 //else: single line text controls don't support styles
1655
1656 return false;
1657}
1658
1659void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1660{
1661 gtk_widget_modify_style(m_text, style);
1662}
1663
1664void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1665{
1666 Cut();
1667}
1668
1669void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1670{
1671 Copy();
1672}
1673
1674void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1675{
1676 Paste();
1677}
1678
1679void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1680{
1681 Undo();
1682}
1683
1684void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1685{
1686 Redo();
1687}
1688
1689void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1690{
1691 event.Enable( CanCut() );
1692}
1693
1694void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1695{
1696 event.Enable( CanCopy() );
1697}
1698
1699void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1700{
1701 event.Enable( CanPaste() );
1702}
1703
1704void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1705{
1706 event.Enable( CanUndo() );
1707}
1708
1709void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1710{
1711 event.Enable( CanRedo() );
1712}
1713
1714wxSize wxTextCtrl::DoGetBestSize() const
1715{
1716 // FIXME should be different for multi-line controls...
1717 wxSize ret( wxControl::DoGetBestSize() );
1718 wxSize best(80, ret.y);
1719 CacheBestSize(best);
1720 return best;
1721}
1722
1723// ----------------------------------------------------------------------------
1724// freeze/thaw
1725// ----------------------------------------------------------------------------
1726
1727void wxTextCtrl::DoFreeze()
1728{
1729 wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1730
1731 wxWindow::DoFreeze();
1732
1733 if ( HasFlag(wxTE_MULTILINE) )
1734 {
1735 GTKFreezeWidget(m_text);
1736
1737 // removing buffer dramatically speeds up insertion:
1738 g_object_ref(m_buffer);
1739 GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1740 GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
1741 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1742 // gtk_text_view_set_buffer adds its own reference
1743 g_object_unref(buf_new);
1744 // This mark should be deleted when the buffer is changed,
1745 // but it's not (in GTK+ up to at least 2.10.6).
1746 // Otherwise these anonymous marks start to build up in the buffer,
1747 // and Freeze takes longer and longer each time it is called.
1748 if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1749 gtk_text_buffer_delete_mark(m_buffer, mark);
1750 }
1751}
1752
1753void wxTextCtrl::DoThaw()
1754{
1755 if ( HasFlag(wxTE_MULTILINE) )
1756 {
1757 // reattach buffer:
1758 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1759 g_object_unref(m_buffer);
1760
1761 if (m_showPositionOnThaw != NULL)
1762 {
1763 gtk_text_view_scroll_mark_onscreen(
1764 GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1765 m_showPositionOnThaw = NULL;
1766 }
1767
1768 // and thaw the window
1769 GTKThawWidget(m_text);
1770 }
1771
1772 wxWindow::DoThaw();
1773}
1774
1775// ----------------------------------------------------------------------------
1776// wxTextUrlEvent passing if style & wxTE_AUTO_URL
1777// ----------------------------------------------------------------------------
1778
1779// FIXME: when dragging on a link the sample gets an "Unknown event".
1780// This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1781// a buggy sample, or something else
1782void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1783{
1784 event.Skip();
1785 if( !HasFlag(wxTE_AUTO_URL) )
1786 return;
1787
1788 gint x, y;
1789 GtkTextIter start, end;
1790 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1791 "wxUrl");
1792
1793 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1794 event.GetX(), event.GetY(), &x, &y);
1795
1796 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1797 if (!gtk_text_iter_has_tag(&end, tag))
1798 {
1799 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1800 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1801 return;
1802 }
1803
1804 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1805 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1806
1807 start = end;
1808 if(!gtk_text_iter_begins_tag(&start, tag))
1809 gtk_text_iter_backward_to_tag_toggle(&start, tag);
1810 if(!gtk_text_iter_ends_tag(&end, tag))
1811 gtk_text_iter_forward_to_tag_toggle(&end, tag);
1812
1813 // Native context menu is probably not desired on an URL.
1814 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1815 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1816 event.Skip(false);
1817
1818 wxTextUrlEvent url_event(m_windowId, event,
1819 gtk_text_iter_get_offset(&start),
1820 gtk_text_iter_get_offset(&end));
1821
1822 InitCommandEvent(url_event);
1823 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1824 //event.Skip(!HandleWindowEvent(url_event));
1825 HandleWindowEvent(url_event);
1826}
1827
1828bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1829{
1830 bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1831
1832 // GtkTextView starts a drag operation when left mouse button is pressed
1833 // and ends it when it is released and if it doesn't get the release event
1834 // the next click on a control results in an assertion failure inside
1835 // gtk_text_view_start_selection_drag() which simply *kills* the program
1836 // without anything we can do about it, so always let GTK+ have this event
1837 return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1838}
1839
1840// static
1841wxVisualAttributes
1842wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1843{
1844 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1845}
1846
1847#endif // wxUSE_TEXTCTRL
wxWidgets (Impactor)