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use a GtkAlignment to position m_mainWidget, avoiding need to re-size_allocate it
[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->GetEventHandler()->ProcessEvent( 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_freezeCount = 0;
618 m_showPositionOnThaw = NULL;
619 m_gdkHandCursor = NULL;
620 m_gdkXTermCursor = NULL;
621}
622
623wxTextCtrl::~wxTextCtrl()
624{
625 if(m_gdkHandCursor)
626 gdk_cursor_unref(m_gdkHandCursor);
627 if(m_gdkXTermCursor)
628 gdk_cursor_unref(m_gdkXTermCursor);
629}
630
631wxTextCtrl::wxTextCtrl( wxWindow *parent,
632 wxWindowID id,
633 const wxString &value,
634 const wxPoint &pos,
635 const wxSize &size,
636 long style,
637 const wxValidator& validator,
638 const wxString &name )
639{
640 Init();
641
642 Create( parent, id, value, pos, size, style, validator, name );
643}
644
645bool wxTextCtrl::Create( wxWindow *parent,
646 wxWindowID id,
647 const wxString &value,
648 const wxPoint &pos,
649 const wxSize &size,
650 long style,
651 const wxValidator& validator,
652 const wxString &name )
653{
654 if (!PreCreation( parent, pos, size ) ||
655 !CreateBase( parent, id, pos, size, style, validator, name ))
656 {
657 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
658 return false;
659 }
660
661 bool multi_line = (style & wxTE_MULTILINE) != 0;
662
663 if (multi_line)
664 {
665 // Create view
666 m_text = gtk_text_view_new();
667
668 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
669
670 // create "ShowPosition" marker
671 GtkTextIter iter;
672 gtk_text_buffer_get_start_iter(m_buffer, &iter);
673 gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
674
675 // create scrolled window
676 m_widget = gtk_scrolled_window_new( NULL, NULL );
677 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
678 GTK_POLICY_AUTOMATIC,
679 style & wxTE_NO_VSCROLL
680 ? GTK_POLICY_NEVER
681 : GTK_POLICY_AUTOMATIC );
682 // for ScrollLines/Pages
683 m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
684
685 // Insert view into scrolled window
686 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
687
688 GTKSetWrapMode();
689
690 GtkScrolledWindowSetBorder(m_widget, style);
691
692 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
693
694 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
695 }
696 else
697 {
698 // a single-line text control: no need for scrollbars
699 m_widget =
700 m_text = gtk_entry_new();
701
702 if (style & wxNO_BORDER)
703 g_object_set (m_text, "has-frame", FALSE, NULL);
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 if (style & wxTE_PROCESS_ENTER)
741 GTKSetActivatesDefault();
742
743 // left justification (alignment) is the default anyhow
744 if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
745 GTKSetJustification();
746
747 if (multi_line)
748 {
749 // Handle URLs on multi-line controls with wxTE_AUTO_URL style
750 if (style & wxTE_AUTO_URL)
751 {
752 GtkTextIter start, end;
753 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
754 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
755
756 // We create our wxUrl tag here for slight efficiency gain - we
757 // don't have to check for the tag existance in callbacks,
758 // hereby it's guaranteed to exist.
759 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
760 "foreground", "blue",
761 "underline", PANGO_UNDERLINE_SINGLE,
762 NULL);
763
764 // Check for URLs after each text change
765 g_signal_connect_after (m_buffer, "insert_text",
766 G_CALLBACK (au_insert_text_callback), this);
767 g_signal_connect_after (m_buffer, "delete_range",
768 G_CALLBACK (au_delete_range_callback), this);
769
770 // Block all wxUrl tag applying unless we do it ourselves, in which case we
771 // block this callback temporarily. This takes care of gtk+ internal
772 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
773 // which is undesired because only a part of the URL might be copied.
774 // The insert-text signal emitted inside it will take care of newly formed
775 // or wholly copied URLs.
776 g_signal_connect (m_buffer, "apply_tag",
777 G_CALLBACK (au_apply_tag_callback), NULL);
778
779 // Check for URLs in the initial string passed to Create
780 gtk_text_buffer_get_start_iter(m_buffer, &start);
781 gtk_text_buffer_get_end_iter(m_buffer, &end);
782 au_check_range(&start, &end);
783 }
784 }
785
786 g_signal_connect (m_text, "copy-clipboard",
787 G_CALLBACK (gtk_copy_clipboard_callback), this);
788 g_signal_connect (m_text, "cut-clipboard",
789 G_CALLBACK (gtk_cut_clipboard_callback), this);
790 g_signal_connect (m_text, "paste-clipboard",
791 G_CALLBACK (gtk_paste_clipboard_callback), this);
792
793 m_cursor = wxCursor( wxCURSOR_IBEAM );
794
795 return true;
796}
797
798GtkEditable *wxTextCtrl::GetEditable() const
799{
800 wxCHECK_MSG( IsSingleLine(), NULL, "shouldn't be called for multiline" );
801
802 return GTK_EDITABLE(m_text);
803}
804
805// ----------------------------------------------------------------------------
806// flags handling
807// ----------------------------------------------------------------------------
808
809void wxTextCtrl::GTKSetEditable()
810{
811 gboolean editable = !HasFlag(wxTE_READONLY);
812 if ( IsSingleLine() )
813 gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
814 else
815 gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
816}
817
818void wxTextCtrl::GTKSetVisibility()
819{
820 wxCHECK_RET( IsSingleLine(),
821 "wxTE_PASSWORD is for single line text controls only" );
822
823 gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
824}
825
826void wxTextCtrl::GTKSetActivatesDefault()
827{
828 wxCHECK_RET( IsSingleLine(),
829 "wxTE_PROCESS_ENTER is for single line text controls only" );
830
831 gtk_entry_set_activates_default(GTK_ENTRY(m_text),
832 !HasFlag(wxTE_PROCESS_ENTER));
833}
834
835void wxTextCtrl::GTKSetWrapMode()
836{
837 // no wrapping in single line controls
838 if ( !IsMultiLine() )
839 return;
840
841 // translate wx wrapping style to GTK+
842 GtkWrapMode wrap;
843 if ( HasFlag( wxTE_DONTWRAP ) )
844 wrap = GTK_WRAP_NONE;
845 else if ( HasFlag( wxTE_CHARWRAP ) )
846 wrap = GTK_WRAP_CHAR;
847 else if ( HasFlag( wxTE_WORDWRAP ) )
848 wrap = GTK_WRAP_WORD;
849 else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
850 wrap = GTK_WRAP_WORD_CHAR;
851
852 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
853}
854
855void wxTextCtrl::GTKSetJustification()
856{
857 if ( IsMultiLine() )
858 {
859 GtkJustification just;
860 if ( HasFlag(wxTE_RIGHT) )
861 just = GTK_JUSTIFY_RIGHT;
862 else if ( HasFlag(wxTE_CENTRE) )
863 just = GTK_JUSTIFY_CENTER;
864 else // wxTE_LEFT == 0
865 just = GTK_JUSTIFY_LEFT;
866
867 gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
868 }
869 else // single line
870 {
871 gfloat align;
872 if ( HasFlag(wxTE_RIGHT) )
873 align = 1.0;
874 else if ( HasFlag(wxTE_CENTRE) )
875 align = 0.5;
876 else // single line
877 align = 0.0;
878
879 gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
880 }
881}
882
883void wxTextCtrl::SetWindowStyleFlag(long style)
884{
885 long styleOld = GetWindowStyleFlag();
886
887 wxTextCtrlBase::SetWindowStyleFlag(style);
888
889 if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
890 GTKSetEditable();
891
892 if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
893 GTKSetVisibility();
894
895 if ( (style & wxTE_PROCESS_ENTER) != (styleOld & wxTE_PROCESS_ENTER) )
896 GTKSetActivatesDefault();
897
898 static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
899 if ( (style & flagsWrap) != (styleOld & flagsWrap) )
900 GTKSetWrapMode();
901
902 static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
903 if ( (style & flagsAlign) != (styleOld & flagsAlign) )
904 GTKSetJustification();
905}
906
907// ----------------------------------------------------------------------------
908// control value
909// ----------------------------------------------------------------------------
910
911wxString wxTextCtrl::GetValue() const
912{
913 wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
914
915 if ( IsMultiLine() )
916 {
917 GtkTextIter start;
918 gtk_text_buffer_get_start_iter( m_buffer, &start );
919 GtkTextIter end;
920 gtk_text_buffer_get_end_iter( m_buffer, &end );
921 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
922
923 return wxGTK_CONV_BACK(text);
924 }
925 else // single line
926 {
927 return wxTextEntry::GetValue();
928 }
929}
930
931wxFontEncoding wxTextCtrl::GetTextEncoding() const
932{
933 // GTK+ uses UTF-8 internally, we need to convert to it but from which
934 // encoding?
935
936 // first check the default text style (we intentionally don't check the
937 // style for the current position as it doesn't make sense for SetValue())
938 const wxTextAttr& style = GetDefaultStyle();
939 wxFontEncoding enc = style.HasFontEncoding() ? style.GetFontEncoding()
940 : wxFONTENCODING_SYSTEM;
941
942 // fall back to the controls font if no style
943 if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
944 enc = GetFont().GetEncoding();
945
946 return enc;
947}
948
949bool wxTextCtrl::IsEmpty() const
950{
951 if ( IsMultiLine() )
952 return gtk_text_buffer_get_char_count(m_buffer) == 0;
953
954 return wxTextEntry::IsEmpty();
955}
956
957void wxTextCtrl::DoSetValue( const wxString &value, int flags )
958{
959 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
960
961 m_modified = false;
962
963 if ( !IsMultiLine() )
964 {
965 wxTextEntry::DoSetValue(value, flags);
966 return;
967 }
968
969 wxFontEncoding enc = m_defaultStyle.HasFont()
970 ? m_defaultStyle.GetFont().GetEncoding()
971 : wxFONTENCODING_SYSTEM;
972 if ( enc == wxFONTENCODING_SYSTEM )
973 enc = GetTextEncoding();
974
975 const wxCharBuffer buffer(wxGTK_CONV_ENC(value, enc));
976 if ( !buffer )
977 {
978 // see comment in WriteText() as to why we must warn the user about
979 // this
980 wxLogWarning(_("Failed to set text in the text control."));
981 return;
982 }
983
984 if ( !(flags & SetValue_SendEvent) )
985 {
986 EnableTextChangedEvents(false);
987 }
988
989 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
990
991 if ( !m_defaultStyle.IsDefault() )
992 {
993 GtkTextIter start, end;
994 gtk_text_buffer_get_bounds( m_buffer, &start, &end );
995 wxGtkTextApplyTagsFromAttr(m_widget, m_buffer, m_defaultStyle,
996 &start, &end);
997 }
998
999 if ( !(flags & SetValue_SendEvent) )
1000 {
1001 EnableTextChangedEvents(true);
1002 }
1003
1004 // This was added after discussion on the list
1005 SetInsertionPoint(0);
1006}
1007
1008void wxTextCtrl::WriteText( const wxString &text )
1009{
1010 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1011
1012 // we're changing the text programmatically
1013 DontMarkDirtyOnNextChange();
1014
1015 if ( !IsMultiLine() )
1016 {
1017 wxTextEntry::WriteText(text);
1018 return;
1019 }
1020
1021 // check if we have a specific style for the current position
1022 wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1023 wxTextAttr style;
1024 if ( GetStyle(GetInsertionPoint(), style) && style.HasFontEncoding() )
1025 {
1026 enc = style.GetFontEncoding();
1027 }
1028
1029 if ( enc == wxFONTENCODING_SYSTEM )
1030 enc = GetTextEncoding();
1031
1032 const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1033 if ( !buffer )
1034 {
1035 // we must log an error here as losing the text like this can be a
1036 // serious problem (e.g. imagine the document edited by user being
1037 // empty instead of containing the correct text)
1038 wxLogWarning(_("Failed to insert text in the control."));
1039 return;
1040 }
1041
1042 // First remove the selection if there is one
1043 // TODO: Is there an easier GTK specific way to do this?
1044 long from, to;
1045 GetSelection(&from, &to);
1046 if (from != to)
1047 Remove(from, to);
1048
1049 // Insert the text
1050 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1051
1052 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1053 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1054 // won't work when frozen, text view is not using m_buffer then
1055 if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
1056 {
1057 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1058 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1059 }
1060}
1061
1062wxString wxTextCtrl::GetLineText( long lineNo ) const
1063{
1064 wxString result;
1065 if ( IsMultiLine() )
1066 {
1067 GtkTextIter line;
1068 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1069
1070 GtkTextIter end = line;
1071 // avoid skipping to the next line end if this one is empty
1072 if ( !gtk_text_iter_ends_line(&line) )
1073 gtk_text_iter_forward_to_line_end(&end);
1074
1075 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1076 result = wxGTK_CONV_BACK(text);
1077 }
1078 else
1079 {
1080 if (lineNo == 0)
1081 result = GetValue();
1082 }
1083 return result;
1084}
1085
1086void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1087{
1088 /* If you implement this, don't forget to update the documentation!
1089 * (file docs/latex/wx/text.tex) */
1090 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1091}
1092
1093bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1094{
1095 if ( IsMultiLine() )
1096 {
1097 GtkTextIter iter;
1098
1099 if (pos > GetLastPosition())
1100 return false;
1101
1102 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1103
1104 if ( y )
1105 *y = gtk_text_iter_get_line(&iter);
1106 if ( x )
1107 *x = gtk_text_iter_get_line_offset(&iter);
1108 }
1109 else // single line control
1110 {
1111 if ( pos <= GTK_ENTRY(m_text)->text_length )
1112 {
1113 if ( y )
1114 *y = 0;
1115 if ( x )
1116 *x = pos;
1117 }
1118 else
1119 {
1120 // index out of bounds
1121 return false;
1122 }
1123 }
1124
1125 return true;
1126}
1127
1128long wxTextCtrl::XYToPosition(long x, long y ) const
1129{
1130 if ( IsSingleLine() )
1131 return 0;
1132
1133 GtkTextIter iter;
1134 if (y >= gtk_text_buffer_get_line_count (m_buffer))
1135 return -1;
1136
1137 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1138 if (x >= gtk_text_iter_get_chars_in_line (&iter))
1139 return -1;
1140
1141 return gtk_text_iter_get_offset(&iter) + x;
1142}
1143
1144int wxTextCtrl::GetLineLength(long lineNo) const
1145{
1146 if ( IsMultiLine() )
1147 {
1148 int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1149 if (lineNo > last_line)
1150 return -1;
1151
1152 GtkTextIter iter;
1153 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1154 // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1155 return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1156 }
1157 else
1158 {
1159 wxString str = GetLineText (lineNo);
1160 return (int) str.length();
1161 }
1162}
1163
1164int wxTextCtrl::GetNumberOfLines() const
1165{
1166 if ( IsMultiLine() )
1167 {
1168 return gtk_text_buffer_get_line_count( m_buffer );
1169 }
1170 else // single line
1171 {
1172 return 1;
1173 }
1174}
1175
1176void wxTextCtrl::SetInsertionPoint( long pos )
1177{
1178 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1179
1180 if ( IsMultiLine() )
1181 {
1182 GtkTextIter iter;
1183 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1184 gtk_text_buffer_place_cursor( m_buffer, &iter );
1185 GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1186 if (IsFrozen())
1187 // defer until Thaw, text view is not using m_buffer now
1188 m_showPositionOnThaw = mark;
1189 else
1190 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1191 }
1192 else // single line
1193 {
1194 wxTextEntry::SetInsertionPoint(pos);
1195 }
1196}
1197
1198void wxTextCtrl::SetEditable( bool editable )
1199{
1200 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1201
1202 if ( IsMultiLine() )
1203 {
1204 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1205 }
1206 else // single line
1207 {
1208 wxTextEntry::SetEditable(editable);
1209 }
1210}
1211
1212bool wxTextCtrl::Enable( bool enable )
1213{
1214 if (!wxWindowBase::Enable(enable))
1215 {
1216 // nothing to do
1217 return false;
1218 }
1219
1220 gtk_widget_set_sensitive( m_text, enable );
1221
1222 return true;
1223}
1224
1225// wxGTK-specific: called recursively by Enable,
1226// to give widgets an opportunity to correct their colours after they
1227// have been changed by Enable
1228void wxTextCtrl::OnEnabled(bool WXUNUSED(enable))
1229{
1230 // If we have a custom background colour, we use this colour in both
1231 // disabled and enabled mode, or we end up with a different colour under the
1232 // text.
1233 wxColour oldColour = GetBackgroundColour();
1234 if (oldColour.Ok())
1235 {
1236 // Need to set twice or it'll optimize the useful stuff out
1237 if (oldColour == * wxWHITE)
1238 SetBackgroundColour(*wxBLACK);
1239 else
1240 SetBackgroundColour(*wxWHITE);
1241 SetBackgroundColour(oldColour);
1242 }
1243}
1244
1245void wxTextCtrl::MarkDirty()
1246{
1247 m_modified = true;
1248}
1249
1250void wxTextCtrl::DiscardEdits()
1251{
1252 m_modified = false;
1253}
1254
1255// ----------------------------------------------------------------------------
1256// event handling
1257// ----------------------------------------------------------------------------
1258
1259void wxTextCtrl::EnableTextChangedEvents(bool enable)
1260{
1261 if ( enable )
1262 {
1263 g_signal_handlers_unblock_by_func(GetTextObject(),
1264 (gpointer)gtk_text_changed_callback, this);
1265 }
1266 else // disable events
1267 {
1268 g_signal_handlers_block_by_func(GetTextObject(),
1269 (gpointer)gtk_text_changed_callback, this);
1270 }
1271}
1272
1273bool wxTextCtrl::IgnoreTextUpdate()
1274{
1275 if ( m_countUpdatesToIgnore > 0 )
1276 {
1277 m_countUpdatesToIgnore--;
1278
1279 return true;
1280 }
1281
1282 return false;
1283}
1284
1285bool wxTextCtrl::MarkDirtyOnChange()
1286{
1287 if ( m_dontMarkDirty )
1288 {
1289 m_dontMarkDirty = false;
1290
1291 return false;
1292 }
1293
1294 return true;
1295}
1296
1297void wxTextCtrl::SetSelection( long from, long to )
1298{
1299 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1300
1301 if (from == -1 && to == -1)
1302 {
1303 from = 0;
1304 to = GetValue().length();
1305 }
1306
1307 if ( IsMultiLine() )
1308 {
1309 GtkTextIter fromi, toi;
1310 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1311 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1312
1313 gtk_text_buffer_place_cursor( m_buffer, &toi );
1314 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1315 }
1316 else // single line
1317 {
1318 wxTextEntry::SetSelection(from, to);
1319 }
1320}
1321
1322void wxTextCtrl::ShowPosition( long pos )
1323{
1324 if (IsMultiLine())
1325 {
1326 GtkTextIter iter;
1327 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1328 GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1329 gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1330 if (IsFrozen())
1331 // defer until Thaw, text view is not using m_buffer now
1332 m_showPositionOnThaw = mark;
1333 else
1334 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1335 }
1336}
1337
1338wxTextCtrlHitTestResult
1339wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1340{
1341 if ( !IsMultiLine() )
1342 {
1343 // not supported
1344 return wxTE_HT_UNKNOWN;
1345 }
1346
1347 int x, y;
1348 gtk_text_view_window_to_buffer_coords
1349 (
1350 GTK_TEXT_VIEW(m_text),
1351 GTK_TEXT_WINDOW_TEXT,
1352 pt.x, pt.y,
1353 &x, &y
1354 );
1355
1356 GtkTextIter iter;
1357 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1358 if ( pos )
1359 *pos = gtk_text_iter_get_offset(&iter);
1360
1361 return wxTE_HT_ON_TEXT;
1362}
1363
1364long wxTextCtrl::GetInsertionPoint() const
1365{
1366 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1367
1368 if ( IsMultiLine() )
1369 {
1370 // There is no direct accessor for the cursor, but
1371 // internally, the cursor is the "mark" called
1372 // "insert" in the text view's btree structure.
1373
1374 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1375 GtkTextIter cursor;
1376 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1377
1378 return gtk_text_iter_get_offset( &cursor );
1379 }
1380 else
1381 {
1382 return wxTextEntry::GetInsertionPoint();
1383 }
1384}
1385
1386wxTextPos wxTextCtrl::GetLastPosition() const
1387{
1388 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1389
1390 int pos = 0;
1391
1392 if ( IsMultiLine() )
1393 {
1394 GtkTextIter end;
1395 gtk_text_buffer_get_end_iter( m_buffer, &end );
1396
1397 pos = gtk_text_iter_get_offset( &end );
1398 }
1399 else // single line
1400 {
1401 pos = wxTextEntry::GetLastPosition();
1402 }
1403
1404 return (long)pos;
1405}
1406
1407void wxTextCtrl::Remove( long from, long to )
1408{
1409 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1410
1411 if ( IsMultiLine() )
1412 {
1413 GtkTextIter fromi, toi;
1414 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1415 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1416
1417 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1418 }
1419 else // single line
1420 {
1421 wxTextEntry::Remove(from, to);
1422 }
1423}
1424
1425void wxTextCtrl::Cut()
1426{
1427 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1428
1429 if ( IsMultiLine() )
1430 g_signal_emit_by_name (m_text, "cut-clipboard");
1431 else
1432 wxTextEntry::Cut();
1433}
1434
1435void wxTextCtrl::Copy()
1436{
1437 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1438
1439 if ( IsMultiLine() )
1440 g_signal_emit_by_name (m_text, "copy-clipboard");
1441 else
1442 wxTextEntry::Copy();
1443}
1444
1445void wxTextCtrl::Paste()
1446{
1447 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1448
1449 if ( IsMultiLine() )
1450 g_signal_emit_by_name (m_text, "paste-clipboard");
1451 else
1452 wxTextEntry::Paste();
1453}
1454
1455// If the return values from and to are the same, there is no
1456// selection.
1457void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1458{
1459 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1460
1461 if ( !IsMultiLine() )
1462 {
1463 wxTextEntry::GetSelection(fromOut, toOut);
1464 return;
1465 }
1466
1467 gint from, to;
1468
1469 GtkTextIter ifrom, ito;
1470 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1471 {
1472 from = gtk_text_iter_get_offset(&ifrom);
1473 to = gtk_text_iter_get_offset(&ito);
1474
1475 if ( from > to )
1476 {
1477 // exchange them to be compatible with wxMSW
1478 gint tmp = from;
1479 from = to;
1480 to = tmp;
1481 }
1482 }
1483 else // no selection
1484 {
1485 from =
1486 to = GetInsertionPoint();
1487 }
1488
1489 if ( fromOut )
1490 *fromOut = from;
1491 if ( toOut )
1492 *toOut = to;
1493}
1494
1495
1496bool wxTextCtrl::IsEditable() const
1497{
1498 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1499
1500 if ( IsMultiLine() )
1501 {
1502 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1503 }
1504 else
1505 {
1506 return wxTextEntry::IsEditable();
1507 }
1508}
1509
1510bool wxTextCtrl::IsModified() const
1511{
1512 return m_modified;
1513}
1514
1515void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1516{
1517 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1518
1519 if ( key_event.GetKeyCode() == WXK_RETURN )
1520 {
1521 if ( HasFlag(wxTE_PROCESS_ENTER) )
1522 {
1523 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1524 event.SetEventObject(this);
1525 event.SetString(GetValue());
1526 if ( GetEventHandler()->ProcessEvent(event) )
1527 return;
1528 }
1529 }
1530
1531 key_event.Skip();
1532}
1533
1534GtkWidget* wxTextCtrl::GetConnectWidget()
1535{
1536 return GTK_WIDGET(m_text);
1537}
1538
1539GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1540{
1541 if ( IsMultiLine() )
1542 {
1543 return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1544 GTK_TEXT_WINDOW_TEXT );
1545 }
1546 else
1547 {
1548 return GTK_ENTRY(m_text)->text_area;
1549 }
1550}
1551
1552// the font will change for subsequent text insertiongs
1553bool wxTextCtrl::SetFont( const wxFont &font )
1554{
1555 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1556
1557 if ( !wxTextCtrlBase::SetFont(font) )
1558 {
1559 // font didn't change, nothing to do
1560 return false;
1561 }
1562
1563 if ( IsMultiLine() )
1564 {
1565 SetUpdateFont(true);
1566
1567 m_defaultStyle.SetFont(font);
1568
1569 ChangeFontGlobally();
1570 }
1571
1572 return true;
1573}
1574
1575void wxTextCtrl::ChangeFontGlobally()
1576{
1577 // this method is very inefficient and hence should be called as rarely as
1578 // possible!
1579 //
1580 // TODO: it can be implemented much more efficiently for GTK2
1581 wxASSERT_MSG( IsMultiLine(),
1582 _T("shouldn't be called for single line controls") );
1583
1584 wxString value = GetValue();
1585 if ( !value.empty() )
1586 {
1587 SetUpdateFont(false);
1588
1589 Clear();
1590 AppendText(value);
1591 }
1592}
1593
1594bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1595{
1596 if ( !wxControl::SetForegroundColour(colour) )
1597 return false;
1598
1599 // update default fg colour too
1600 m_defaultStyle.SetTextColour(colour);
1601
1602 return true;
1603}
1604
1605bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1606{
1607 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1608
1609 if ( !wxControl::SetBackgroundColour( colour ) )
1610 return false;
1611
1612 if (!m_backgroundColour.Ok())
1613 return false;
1614
1615 // change active background color too
1616 m_defaultStyle.SetBackgroundColour( colour );
1617
1618 return true;
1619}
1620
1621bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1622{
1623 if ( IsMultiLine() )
1624 {
1625 if ( style.IsDefault() )
1626 {
1627 // nothing to do
1628 return true;
1629 }
1630
1631 gint l = gtk_text_buffer_get_char_count( m_buffer );
1632
1633 wxCHECK_MSG( start >= 0 && end <= l, false,
1634 _T("invalid range in wxTextCtrl::SetStyle") );
1635
1636 GtkTextIter starti, endi;
1637 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1638 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1639
1640 wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, style, &starti, &endi );
1641
1642 return true;
1643 }
1644 //else: single line text controls don't support styles
1645
1646 return false;
1647}
1648
1649void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1650{
1651 gtk_widget_modify_style(m_text, style);
1652}
1653
1654void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1655{
1656 Cut();
1657}
1658
1659void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1660{
1661 Copy();
1662}
1663
1664void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1665{
1666 Paste();
1667}
1668
1669void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1670{
1671 Undo();
1672}
1673
1674void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1675{
1676 Redo();
1677}
1678
1679void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1680{
1681 event.Enable( CanCut() );
1682}
1683
1684void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1685{
1686 event.Enable( CanCopy() );
1687}
1688
1689void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1690{
1691 event.Enable( CanPaste() );
1692}
1693
1694void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1695{
1696 event.Enable( CanUndo() );
1697}
1698
1699void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1700{
1701 event.Enable( CanRedo() );
1702}
1703
1704wxSize wxTextCtrl::DoGetBestSize() const
1705{
1706 // FIXME should be different for multi-line controls...
1707 wxSize ret( wxControl::DoGetBestSize() );
1708 wxSize best(80, ret.y);
1709 CacheBestSize(best);
1710 return best;
1711}
1712
1713// ----------------------------------------------------------------------------
1714// freeze/thaw
1715// ----------------------------------------------------------------------------
1716
1717void wxTextCtrl::Freeze()
1718{
1719 wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1720
1721 if ( HasFlag(wxTE_MULTILINE) )
1722 {
1723 if (m_freezeCount++ == 0)
1724 {
1725 // freeze textview updates and remove buffer
1726 g_signal_connect (m_text, "expose_event",
1727 G_CALLBACK (gtk_text_exposed_callback), this);
1728 g_signal_connect (m_widget, "expose_event",
1729 G_CALLBACK (gtk_text_exposed_callback), this);
1730 gtk_widget_set_sensitive(m_widget, false);
1731 g_object_ref(m_buffer);
1732 GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1733 GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
1734 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1735 // gtk_text_view_set_buffer adds its own reference
1736 g_object_unref(buf_new);
1737 // This mark should be deleted when the buffer is changed,
1738 // but it's not (in GTK+ up to at least 2.10.6).
1739 // Otherwise these anonymous marks start to build up in the buffer,
1740 // and Freeze takes longer and longer each time it is called.
1741 if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1742 gtk_text_buffer_delete_mark(m_buffer, mark);
1743 }
1744 }
1745}
1746
1747void wxTextCtrl::Thaw()
1748{
1749 if ( HasFlag(wxTE_MULTILINE) )
1750 {
1751 wxCHECK_RET(m_freezeCount != 0, _T("Thaw() without matching Freeze()"));
1752
1753 if (--m_freezeCount == 0)
1754 {
1755 // Reattach buffer and thaw textview updates
1756 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1757 g_object_unref(m_buffer);
1758 gtk_widget_set_sensitive(m_widget, true);
1759 g_signal_handlers_disconnect_by_func (m_widget,
1760 (gpointer) gtk_text_exposed_callback, this);
1761 g_signal_handlers_disconnect_by_func (m_text,
1762 (gpointer) gtk_text_exposed_callback, this);
1763 if (m_showPositionOnThaw != NULL)
1764 {
1765 gtk_text_view_scroll_mark_onscreen(
1766 GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1767 m_showPositionOnThaw = NULL;
1768 }
1769 }
1770 }
1771}
1772
1773// ----------------------------------------------------------------------------
1774// wxTextUrlEvent passing if style & wxTE_AUTO_URL
1775// ----------------------------------------------------------------------------
1776
1777// FIXME: when dragging on a link the sample gets an "Unknown event".
1778// This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1779// a buggy sample, or something else
1780void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1781{
1782 event.Skip();
1783 if( !HasFlag(wxTE_AUTO_URL) )
1784 return;
1785
1786 gint x, y;
1787 GtkTextIter start, end;
1788 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1789 "wxUrl");
1790
1791 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1792 event.GetX(), event.GetY(), &x, &y);
1793
1794 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1795 if (!gtk_text_iter_has_tag(&end, tag))
1796 {
1797 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1798 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1799 return;
1800 }
1801
1802 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1803 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1804
1805 start = end;
1806 if(!gtk_text_iter_begins_tag(&start, tag))
1807 gtk_text_iter_backward_to_tag_toggle(&start, tag);
1808 if(!gtk_text_iter_ends_tag(&end, tag))
1809 gtk_text_iter_forward_to_tag_toggle(&end, tag);
1810
1811 // Native context menu is probably not desired on an URL.
1812 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1813 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1814 event.Skip(false);
1815
1816 wxTextUrlEvent url_event(m_windowId, event,
1817 gtk_text_iter_get_offset(&start),
1818 gtk_text_iter_get_offset(&end));
1819
1820 InitCommandEvent(url_event);
1821 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1822 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1823 GetEventHandler()->ProcessEvent(url_event);
1824}
1825
1826bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1827{
1828 bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1829
1830 // GtkTextView starts a drag operation when left mouse button is pressed
1831 // and ends it when it is released and if it doesn't get the release event
1832 // the next click on a control results in an assertion failure inside
1833 // gtk_text_view_start_selection_drag() which simply *kills* the program
1834 // without anything we can do about it, so always let GTK+ have this event
1835 return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1836}
1837
1838// static
1839wxVisualAttributes
1840wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1841{
1842 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1843}
1844
1845#endif // wxUSE_TEXTCTRL
wxWidgets (Impactor)