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corrected off by 1 error in cMB2WC() call (thanks valgrind)
[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 *start,
42 GtkTextIter *end,
43 char *prefix)
44{
45 gchar *name;
46 g_object_get (tag, "name", &name, NULL);
47
48 if (!name || strncmp(name, prefix, strlen(prefix)))
49 // anonymous tag or not starting with prefix - don't remove
50 g_signal_stop_emission_by_name (buffer, "remove_tag");
51
52 g_free(name);
53}
54}
55
56// remove all tags starting with the given prefix from the start..end range
57static void
58wxGtkTextRemoveTagsWithPrefix(GtkTextBuffer *text_buffer,
59 const char *prefix,
60 GtkTextIter *start,
61 GtkTextIter *end)
62{
63 gulong remove_handler_id = g_signal_connect
64 (
65 text_buffer,
66 "remove_tag",
67 G_CALLBACK(wxGtkOnRemoveTag),
68 gpointer(prefix)
69 );
70 gtk_text_buffer_remove_all_tags(text_buffer, start, end);
71 g_signal_handler_disconnect(text_buffer, remove_handler_id);
72}
73
74static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
75 GtkTextBuffer *text_buffer,
76 const wxTextAttr& attr,
77 GtkTextIter *start,
78 GtkTextIter *end)
79{
80 static gchar buf[1024];
81 GtkTextTag *tag;
82
83 if (attr.HasFont())
84 {
85 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFONT", start, end);
86
87 PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
88 wxGtkString font_string(pango_font_description_to_string(font_description));
89 g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
90 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
91 buf );
92 if (!tag)
93 tag = gtk_text_buffer_create_tag( text_buffer, buf,
94 "font-desc", font_description,
95 NULL );
96 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
97
98 if (attr.GetFont().GetUnderlined())
99 {
100 g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
101 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
102 buf );
103 if (!tag)
104 tag = gtk_text_buffer_create_tag( text_buffer, buf,
105 "underline-set", TRUE,
106 "underline", PANGO_UNDERLINE_SINGLE,
107 NULL );
108 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
109 }
110 }
111
112 if (attr.HasTextColour())
113 {
114 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFORECOLOR", start, end);
115
116 const GdkColor *colFg = attr.GetTextColour().GetColor();
117 g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
118 colFg->red, colFg->green, colFg->blue);
119 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
120 buf );
121 if (!tag)
122 tag = gtk_text_buffer_create_tag( text_buffer, buf,
123 "foreground-gdk", colFg, NULL );
124 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
125 }
126
127 if (attr.HasBackgroundColour())
128 {
129 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXBACKCOLOR", start, end);
130
131 const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
132 g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
133 colBg->red, colBg->green, colBg->blue);
134 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
135 buf );
136 if (!tag)
137 tag = gtk_text_buffer_create_tag( text_buffer, buf,
138 "background-gdk", colBg, NULL );
139 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
140 }
141
142 if (attr.HasAlignment())
143 {
144 GtkTextIter para_start, para_end = *end;
145 gtk_text_buffer_get_iter_at_line( text_buffer,
146 &para_start,
147 gtk_text_iter_get_line(start) );
148 gtk_text_iter_forward_line(&para_end);
149
150 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXALIGNMENT", start, end);
151
152 GtkJustification align;
153 switch (attr.GetAlignment())
154 {
155 default:
156 align = GTK_JUSTIFY_LEFT;
157 break;
158 case wxTEXT_ALIGNMENT_RIGHT:
159 align = GTK_JUSTIFY_RIGHT;
160 break;
161 case wxTEXT_ALIGNMENT_CENTER:
162 align = GTK_JUSTIFY_CENTER;
163 break;
164// gtk+ doesn't support justify before gtk+-2.11.0 with pango-1.17 being available
165// (but if new enough pango isn't available it's a mere gtk warning)
166#if GTK_CHECK_VERSION(2,11,0)
167 case wxTEXT_ALIGNMENT_JUSTIFIED:
168 if (!gtk_check_version(2,11,0))
169 align = GTK_JUSTIFY_FILL;
170 else
171 align = GTK_JUSTIFY_LEFT;
172 break;
173#endif
174 }
175
176 g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
177 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
178 buf );
179 if (!tag)
180 tag = gtk_text_buffer_create_tag( text_buffer, buf,
181 "justification", align, NULL );
182 gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
183 }
184
185 if (attr.HasLeftIndent())
186 {
187 // Indentation attribute
188
189 // Clear old indentation tags
190 GtkTextIter para_start, para_end = *end;
191 gtk_text_buffer_get_iter_at_line( text_buffer,
192 &para_start,
193 gtk_text_iter_get_line(start) );
194 gtk_text_iter_forward_line(&para_end);
195
196 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXINDENT", start, end);
197
198 // Convert indent from 1/10th of a mm into pixels
199 float factor;
200#if GTK_CHECK_VERSION(2,2,0)
201 if (!gtk_check_version(2,2,0))
202 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
203 gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
204 else
205#endif
206 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
207
208 const int indent = (int)(factor * attr.GetLeftIndent());
209 const int subIndent = (int)(factor * attr.GetLeftSubIndent());
210
211 gint gindent;
212 gint gsubindent;
213
214 if (subIndent >= 0)
215 {
216 gindent = indent;
217 gsubindent = -subIndent;
218 }
219 else
220 {
221 gindent = -subIndent;
222 gsubindent = indent;
223 }
224
225 g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
226 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
227 buf );
228 if (!tag)
229 tag = gtk_text_buffer_create_tag( text_buffer, buf,
230 "left-margin", gindent, "indent", gsubindent, NULL );
231 gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
232 }
233
234 if (attr.HasTabs())
235 {
236 // Set tab stops
237
238 // Clear old tabs
239 GtkTextIter para_start, para_end = *end;
240 gtk_text_buffer_get_iter_at_line( text_buffer,
241 &para_start,
242 gtk_text_iter_get_line(start) );
243 gtk_text_iter_forward_line(&para_end);
244
245 wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXTABS", start, end);
246
247 const wxArrayInt& tabs = attr.GetTabs();
248
249 wxString tagname = _T("WXTABS");
250 g_snprintf(buf, sizeof(buf), "WXTABS");
251 for (size_t i = 0; i < tabs.GetCount(); i++)
252 tagname += wxString::Format(_T(" %d"), tabs[i]);
253
254 const wxWX2MBbuf buf = tagname.mb_str(wxConvUTF8);
255
256 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
257 buf );
258 if (!tag)
259 {
260 // Factor to convert from 1/10th of a mm into pixels
261 float factor;
262#if GTK_CHECK_VERSION(2,2,0)
263 if (!gtk_check_version(2,2,0))
264 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
265 gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
266 else
267#endif
268 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
269
270 PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
271 for (size_t i = 0; i < tabs.GetCount(); i++)
272 pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
273 tag = gtk_text_buffer_create_tag( text_buffer, buf,
274 "tabs", tabArray, NULL );
275 pango_tab_array_free(tabArray);
276 }
277 gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
278 }
279}
280
281static void wxGtkTextInsert(GtkWidget *text,
282 GtkTextBuffer *text_buffer,
283 const wxTextAttr& attr,
284 const wxCharBuffer& buffer)
285
286{
287 gint start_offset;
288 GtkTextIter iter, start;
289
290 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
291 gtk_text_buffer_get_insert (text_buffer) );
292 start_offset = gtk_text_iter_get_offset (&iter);
293 gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
294
295 gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
296
297 wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
298}
299
300// ----------------------------------------------------------------------------
301// "insert_text" for GtkEntry
302// ----------------------------------------------------------------------------
303
304extern "C" {
305static void
306gtk_insert_text_callback(GtkEditable *editable,
307 const gchar *new_text,
308 gint new_text_length,
309 gint *position,
310 wxTextCtrl *win)
311{
312 // we should only be called if we have a max len limit at all
313 GtkEntry *entry = GTK_ENTRY (editable);
314
315 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
316
317 // check that we don't overflow the max length limit
318 //
319 // FIXME: this doesn't work when we paste a string which is going to be
320 // truncated
321 if ( entry->text_length == entry->text_max_length )
322 {
323 // we don't need to run the base class version at all
324 g_signal_stop_emission_by_name (editable, "insert_text");
325
326 // remember that the next changed signal is to be ignored to avoid
327 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
328 win->IgnoreNextTextUpdate();
329
330 // and generate the correct one ourselves
331 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
332 event.SetEventObject(win);
333 event.SetString(win->GetValue());
334 win->GetEventHandler()->ProcessEvent( event );
335 }
336}
337}
338
339// Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
340
341extern "C" {
342static void
343au_apply_tag_callback(GtkTextBuffer *buffer,
344 GtkTextTag *tag,
345 GtkTextIter *start,
346 GtkTextIter *end,
347 gpointer textctrl)
348{
349 if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
350 g_signal_stop_emission_by_name (buffer, "apply_tag");
351}
352}
353
354//-----------------------------------------------------------------------------
355// GtkTextCharPredicates for gtk_text_iter_*_find_char
356//-----------------------------------------------------------------------------
357
358extern "C" {
359static gboolean
360pred_whitespace (gunichar ch, gpointer user_data)
361{
362 return g_unichar_isspace(ch);
363}
364}
365
366extern "C" {
367static gboolean
368pred_non_whitespace (gunichar ch, gpointer user_data)
369{
370 return !g_unichar_isspace(ch);
371}
372}
373
374extern "C" {
375static gboolean
376pred_nonpunct (gunichar ch, gpointer user_data)
377{
378 return !g_unichar_ispunct(ch);
379}
380}
381
382extern "C" {
383static gboolean
384pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
385{
386 return !g_unichar_ispunct(ch) || ch == '/';
387}
388}
389
390//-----------------------------------------------------------------------------
391// Check for links between s and e and correct tags as necessary
392//-----------------------------------------------------------------------------
393
394// This function should be made match better while being efficient at one point.
395// Most probably with a row of regular expressions.
396extern "C" {
397static void
398au_check_word( GtkTextIter *s, GtkTextIter *e )
399{
400 static const char *URIPrefixes[] =
401 {
402 "http://",
403 "ftp://",
404 "www.",
405 "ftp.",
406 "mailto://",
407 "https://",
408 "file://",
409 "nntp://",
410 "news://",
411 "telnet://",
412 "mms://",
413 "gopher://",
414 "prospero://",
415 "wais://",
416 };
417
418 GtkTextIter start = *s, end = *e;
419 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
420
421 // Get our special link tag
422 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
423
424 // Get rid of punctuation from beginning and end.
425 // Might want to move this to au_check_range if an improved link checking doesn't
426 // use some intelligent punctuation checking itself (beware of undesired iter modifications).
427 if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
428 gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
429
430 gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
431 gtk_text_iter_forward_char(&end);
432
433 wxGtkString text(gtk_text_iter_get_text( &start, &end ));
434 size_t len = strlen(text), prefix_len;
435 size_t n;
436
437 for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
438 {
439 prefix_len = strlen(URIPrefixes[n]);
440 if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
441 break;
442 }
443
444 if(n < WXSIZEOF(URIPrefixes))
445 {
446 gulong signal_id = g_signal_handler_find (buffer,
447 (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
448 0, 0, NULL,
449 (gpointer)au_apply_tag_callback, NULL);
450
451 g_signal_handler_block (buffer, signal_id);
452 gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
453 g_signal_handler_unblock (buffer, signal_id);
454 }
455}
456}
457
458extern "C" {
459static void
460au_check_range(GtkTextIter *s,
461 GtkTextIter *range_end)
462{
463 GtkTextIter range_start = *s;
464 GtkTextIter word_end;
465 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
466 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
467
468 gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
469
470 if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
471 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
472
473 while(!gtk_text_iter_equal(&range_start, range_end))
474 {
475 word_end = range_start;
476 gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
477
478 // Now we should have a word delimited by range_start and word_end, correct link tags
479 au_check_word(&range_start, &word_end);
480
481 range_start = word_end;
482 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
483 }
484}
485}
486
487//-----------------------------------------------------------------------------
488// "insert-text" for GtkTextBuffer
489//-----------------------------------------------------------------------------
490
491extern "C" {
492static void
493au_insert_text_callback(GtkTextBuffer *buffer,
494 GtkTextIter *end,
495 gchar *text,
496 gint len,
497 wxTextCtrl *win)
498{
499 if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
500 return;
501
502 GtkTextIter start = *end;
503 gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
504
505 GtkTextIter line_start = start;
506 GtkTextIter line_end = *end;
507 GtkTextIter words_start = start;
508 GtkTextIter words_end = *end;
509
510 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
511 gtk_text_iter_forward_to_line_end(&line_end);
512 gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
513 gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
514
515 au_check_range(&words_start, &words_end);
516}
517}
518
519//-----------------------------------------------------------------------------
520// "delete-range" for GtkTextBuffer
521//-----------------------------------------------------------------------------
522
523extern "C" {
524static void
525au_delete_range_callback(GtkTextBuffer *buffer,
526 GtkTextIter *start,
527 GtkTextIter *end,
528 wxTextCtrl *win)
529{
530 if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
531 return;
532
533 GtkTextIter line_start = *start, line_end = *end;
534
535 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
536 gtk_text_iter_forward_to_line_end(&line_end);
537 gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
538 gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
539
540 au_check_range(start, end);
541}
542}
543
544
545//-----------------------------------------------------------------------------
546// "changed"
547//-----------------------------------------------------------------------------
548
549extern "C" {
550static void
551gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
552{
553 if ( win->IgnoreTextUpdate() )
554 return;
555
556 if (!win->m_hasVMT) return;
557
558 if ( win->MarkDirtyOnChange() )
559 win->MarkDirty();
560
561 win->SendTextUpdatedEvent();
562}
563}
564
565//-----------------------------------------------------------------------------
566// clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
567//-----------------------------------------------------------------------------
568
569// common part of the event handlers below
570static void
571handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
572 wxEventType eventType, const gchar * signal_name)
573{
574 wxClipboardTextEvent event( eventType, win->GetId() );
575 event.SetEventObject( win );
576 if ( win->GetEventHandler()->ProcessEvent( event ) )
577 {
578 // don't let the default processing to take place if we did something
579 // ourselves in the event handler
580 g_signal_stop_emission_by_name (widget, signal_name);
581 }
582}
583
584extern "C" {
585static void
586gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
587{
588 handle_text_clipboard_callback(
589 widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
590}
591
592static void
593gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
594{
595 handle_text_clipboard_callback(
596 widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
597}
598
599static void
600gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
601{
602 handle_text_clipboard_callback(
603 widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
604}
605}
606
607//-----------------------------------------------------------------------------
608// "expose_event" from scrolled window and textview
609//-----------------------------------------------------------------------------
610
611extern "C" {
612static gboolean
613gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
614{
615 return TRUE;
616}
617}
618
619
620//-----------------------------------------------------------------------------
621// wxTextCtrl
622//-----------------------------------------------------------------------------
623
624IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
625
626BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
627 EVT_CHAR(wxTextCtrl::OnChar)
628
629 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
630 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
631 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
632 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
633 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
634
635 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
636 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
637 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
638 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
639 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
640
641 // wxTE_AUTO_URL wxTextUrl support. Currently only creates
642 // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
643 EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
644 EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
645 EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
646 EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
647 EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
648 EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
649 EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
650END_EVENT_TABLE()
651
652void wxTextCtrl::Init()
653{
654 m_dontMarkDirty =
655 m_modified = false;
656
657 m_countUpdatesToIgnore = 0;
658
659 SetUpdateFont(false);
660
661 m_text = NULL;
662 m_freezeCount = 0;
663 m_showPositionOnThaw = NULL;
664 m_gdkHandCursor = NULL;
665 m_gdkXTermCursor = NULL;
666}
667
668wxTextCtrl::~wxTextCtrl()
669{
670 if(m_gdkHandCursor)
671 gdk_cursor_unref(m_gdkHandCursor);
672 if(m_gdkXTermCursor)
673 gdk_cursor_unref(m_gdkXTermCursor);
674}
675
676wxTextCtrl::wxTextCtrl( wxWindow *parent,
677 wxWindowID id,
678 const wxString &value,
679 const wxPoint &pos,
680 const wxSize &size,
681 long style,
682 const wxValidator& validator,
683 const wxString &name )
684{
685 Init();
686
687 Create( parent, id, value, pos, size, style, validator, name );
688}
689
690bool wxTextCtrl::Create( wxWindow *parent,
691 wxWindowID id,
692 const wxString &value,
693 const wxPoint &pos,
694 const wxSize &size,
695 long style,
696 const wxValidator& validator,
697 const wxString &name )
698{
699 if (!PreCreation( parent, pos, size ) ||
700 !CreateBase( parent, id, pos, size, style, validator, name ))
701 {
702 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
703 return false;
704 }
705
706 bool multi_line = (style & wxTE_MULTILINE) != 0;
707
708 if (multi_line)
709 {
710 // Create view
711 m_text = gtk_text_view_new();
712
713 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
714
715 // create "ShowPosition" marker
716 GtkTextIter iter;
717 gtk_text_buffer_get_start_iter(m_buffer, &iter);
718 gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
719
720 // create scrolled window
721 m_widget = gtk_scrolled_window_new( NULL, NULL );
722 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
723 GTK_POLICY_AUTOMATIC,
724 style & wxTE_NO_VSCROLL
725 ? GTK_POLICY_NEVER
726 : GTK_POLICY_AUTOMATIC );
727 // for ScrollLines/Pages
728 m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
729
730 // Insert view into scrolled window
731 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
732
733 GTKSetWrapMode();
734
735 GtkScrolledWindowSetBorder(m_widget, style);
736
737 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
738
739 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
740 }
741 else
742 {
743 // a single-line text control: no need for scrollbars
744 m_widget =
745 m_text = gtk_entry_new();
746
747 if (style & wxNO_BORDER)
748 g_object_set (m_text, "has-frame", FALSE, NULL);
749 }
750
751 m_parent->DoAddChild( this );
752
753 m_focusWidget = m_text;
754
755 PostCreation(size);
756
757 if (multi_line)
758 {
759 gtk_widget_show(m_text);
760 }
761
762 // We want to be notified about text changes.
763 if (multi_line)
764 {
765 g_signal_connect (m_buffer, "changed",
766 G_CALLBACK (gtk_text_changed_callback), this);
767 }
768 else
769 {
770 g_signal_connect (m_text, "changed",
771 G_CALLBACK (gtk_text_changed_callback), this);
772 }
773
774 if (!value.empty())
775 {
776 SetValue( value );
777 }
778
779 if (style & wxTE_PASSWORD)
780 GTKSetVisibility();
781
782 if (style & wxTE_READONLY)
783 GTKSetEditable();
784
785 // left justification (alignment) is the default anyhow
786 if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
787 GTKSetJustification();
788
789 if (multi_line)
790 {
791 // Handle URLs on multi-line controls with wxTE_AUTO_URL style
792 if (style & wxTE_AUTO_URL)
793 {
794 GtkTextIter start, end;
795 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
796 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
797
798 // We create our wxUrl tag here for slight efficiency gain - we
799 // don't have to check for the tag existance in callbacks,
800 // hereby it's guaranteed to exist.
801 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
802 "foreground", "blue",
803 "underline", PANGO_UNDERLINE_SINGLE,
804 NULL);
805
806 // Check for URLs after each text change
807 g_signal_connect_after (m_buffer, "insert_text",
808 G_CALLBACK (au_insert_text_callback), this);
809 g_signal_connect_after (m_buffer, "delete_range",
810 G_CALLBACK (au_delete_range_callback), this);
811
812 // Block all wxUrl tag applying unless we do it ourselves, in which case we
813 // block this callback temporarily. This takes care of gtk+ internal
814 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
815 // which is undesired because only a part of the URL might be copied.
816 // The insert-text signal emitted inside it will take care of newly formed
817 // or wholly copied URLs.
818 g_signal_connect (m_buffer, "apply_tag",
819 G_CALLBACK (au_apply_tag_callback), NULL);
820
821 // Check for URLs in the initial string passed to Create
822 gtk_text_buffer_get_start_iter(m_buffer, &start);
823 gtk_text_buffer_get_end_iter(m_buffer, &end);
824 au_check_range(&start, &end);
825 }
826 }
827
828 g_signal_connect (m_text, "copy-clipboard",
829 G_CALLBACK (gtk_copy_clipboard_callback), this);
830 g_signal_connect (m_text, "cut-clipboard",
831 G_CALLBACK (gtk_cut_clipboard_callback), this);
832 g_signal_connect (m_text, "paste-clipboard",
833 G_CALLBACK (gtk_paste_clipboard_callback), this);
834
835 m_cursor = wxCursor( wxCURSOR_IBEAM );
836
837 return true;
838}
839
840// ----------------------------------------------------------------------------
841// flags handling
842// ----------------------------------------------------------------------------
843
844void wxTextCtrl::GTKSetEditable()
845{
846 gboolean editable = !HasFlag(wxTE_READONLY);
847 if ( IsSingleLine() )
848 gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
849 else
850 gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
851}
852
853void wxTextCtrl::GTKSetVisibility()
854{
855 // VZ: shouldn't we assert if wxTE_PASSWORD is set for multiline control?
856 if ( IsSingleLine() )
857 gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
858}
859
860void wxTextCtrl::GTKSetWrapMode()
861{
862 // no wrapping in single line controls
863 if ( !IsMultiLine() )
864 return;
865
866 // translate wx wrapping style to GTK+
867 GtkWrapMode wrap;
868 if ( HasFlag( wxTE_DONTWRAP ) )
869 wrap = GTK_WRAP_NONE;
870 else if ( HasFlag( wxTE_CHARWRAP ) )
871 wrap = GTK_WRAP_CHAR;
872 else if ( HasFlag( wxTE_WORDWRAP ) )
873 wrap = GTK_WRAP_WORD;
874 else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
875 {
876 // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
877#ifdef __WXGTK24__
878 if ( !gtk_check_version(2,4,0) )
879 {
880 wrap = GTK_WRAP_WORD_CHAR;
881 }
882 else
883#endif // __WXGTK24__
884 wrap = GTK_WRAP_WORD;
885 }
886
887 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
888}
889
890void wxTextCtrl::GTKSetJustification()
891{
892 if ( IsMultiLine() )
893 {
894 GtkJustification just;
895 if ( HasFlag(wxTE_RIGHT) )
896 just = GTK_JUSTIFY_RIGHT;
897 else if ( HasFlag(wxTE_CENTRE) )
898 just = GTK_JUSTIFY_CENTER;
899 else // wxTE_LEFT == 0
900 just = GTK_JUSTIFY_LEFT;
901
902 gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
903 }
904 else // single line
905 {
906#ifdef __WXGTK24__
907 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
908 if (!gtk_check_version(2,4,0))
909 {
910 gfloat align;
911 if ( HasFlag(wxTE_RIGHT) )
912 align = 1.0;
913 else if ( HasFlag(wxTE_CENTRE) )
914 align = 0.5;
915 else // single line
916 align = 0.0;
917
918 gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
919 }
920#endif // __WXGTK24__
921 }
922
923}
924
925void wxTextCtrl::SetWindowStyleFlag(long style)
926{
927 long styleOld = GetWindowStyleFlag();
928
929 wxTextCtrlBase::SetWindowStyleFlag(style);
930
931 if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
932 GTKSetEditable();
933
934 if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
935 GTKSetVisibility();
936
937 static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
938 if ( (style & flagsWrap) != (styleOld & flagsWrap) )
939 GTKSetWrapMode();
940
941 static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
942 if ( (style & flagsAlign) != (styleOld & flagsAlign) )
943 GTKSetJustification();
944}
945
946// ----------------------------------------------------------------------------
947// control value
948// ----------------------------------------------------------------------------
949
950wxString wxTextCtrl::GetValue() const
951{
952 wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
953
954 wxString tmp;
955 if ( IsMultiLine() )
956 {
957 GtkTextIter start;
958 gtk_text_buffer_get_start_iter( m_buffer, &start );
959 GtkTextIter end;
960 gtk_text_buffer_get_end_iter( m_buffer, &end );
961 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
962
963 return wxGTK_CONV_BACK(text);
964 }
965 else
966 {
967 const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
968 return wxGTK_CONV_BACK(text);
969 }
970
971 return tmp;
972}
973
974wxFontEncoding wxTextCtrl::GetTextEncoding() const
975{
976 // GTK+ uses UTF-8 internally, we need to convert to it but from which
977 // encoding?
978
979 // first check the default text style (we intentionally don't check the
980 // style for the current position as it doesn't make sense for SetValue())
981 const wxTextAttr& style = GetDefaultStyle();
982 wxFontEncoding enc = style.HasFont() ? style.GetFont().GetEncoding()
983 : wxFONTENCODING_SYSTEM;
984
985 // fall back to the controls font if no style
986 if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
987 enc = GetFont().GetEncoding();
988
989 return enc;
990}
991
992bool wxTextCtrl::IsEmpty() const
993{
994 if ( IsMultiLine() )
995 return gtk_text_buffer_get_char_count(m_buffer) == 0;
996
997 return wxTextCtrlBase::IsEmpty();
998}
999
1000void wxTextCtrl::DoSetValue( const wxString &value, int flags )
1001{
1002 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1003
1004 m_modified = false;
1005
1006 wxFontEncoding enc = m_defaultStyle.HasFont()
1007 ? m_defaultStyle.GetFont().GetEncoding()
1008 : wxFONTENCODING_SYSTEM;
1009 if ( enc == wxFONTENCODING_SYSTEM )
1010 enc = GetTextEncoding();
1011
1012 const wxCharBuffer buffer(wxGTK_CONV_ENC(value, enc));
1013 if ( !buffer )
1014 {
1015 // see comment in WriteText() as to why we must warn the user about
1016 // this
1017 wxLogWarning(_("Failed to set text in the text control."));
1018 return;
1019 }
1020
1021 void* blockWidget = IsMultiLine() ? (void*)m_buffer : (void*)m_text;
1022 g_signal_handlers_block_by_func(blockWidget,
1023 (gpointer)gtk_text_changed_callback, this);
1024 if ( IsMultiLine() )
1025 {
1026 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
1027
1028 if ( !m_defaultStyle.IsDefault() )
1029 {
1030 GtkTextIter start, end;
1031 gtk_text_buffer_get_bounds( m_buffer, &start, &end );
1032 wxGtkTextApplyTagsFromAttr(m_widget, m_buffer, m_defaultStyle,
1033 &start, &end);
1034 }
1035 }
1036 else
1037 {
1038 gtk_entry_set_text( GTK_ENTRY(m_text), buffer );
1039 }
1040 g_signal_handlers_unblock_by_func(blockWidget,
1041 (gpointer)gtk_text_changed_callback, this);
1042
1043 // This was added after discussion on the list
1044 SetInsertionPoint(0);
1045}
1046
1047void wxTextCtrl::WriteText( const wxString &text )
1048{
1049 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1050
1051 if ( text.empty() )
1052 return;
1053
1054 // check if we have a specific style for the current position
1055 wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1056 wxTextAttr style;
1057 if ( GetStyle(GetInsertionPoint(), style) && style.HasFont() )
1058 {
1059 enc = style.GetFont().GetEncoding();
1060 }
1061
1062 if ( enc == wxFONTENCODING_SYSTEM )
1063 enc = GetTextEncoding();
1064
1065 const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1066 if ( !buffer )
1067 {
1068 // we must log an error here as losing the text like this can be a
1069 // serious problem (e.g. imagine the document edited by user being
1070 // empty instead of containing the correct text)
1071 wxLogWarning(_("Failed to insert text in the control."));
1072 return;
1073 }
1074
1075 // we're changing the text programmatically
1076 DontMarkDirtyOnNextChange();
1077
1078 if ( IsMultiLine() )
1079 {
1080 // First remove the selection if there is one
1081 // TODO: Is there an easier GTK specific way to do this?
1082 long from, to;
1083 GetSelection(&from, &to);
1084 if (from != to)
1085 Remove(from, to);
1086
1087 // Insert the text
1088 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1089
1090 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1091 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1092 // won't work when frozen, text view is not using m_buffer then
1093 if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
1094 {
1095 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1096 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1097 }
1098 }
1099 else // single line
1100 {
1101 // First remove the selection if there is one
1102 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1103
1104 // This moves the cursor pos to behind the inserted text.
1105 gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
1106
1107 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1108
1109 // Bring entry's cursor uptodate.
1110 gtk_editable_set_position( GTK_EDITABLE(m_text), len );
1111 }
1112}
1113
1114void wxTextCtrl::AppendText( const wxString &text )
1115{
1116 SetInsertionPointEnd();
1117 WriteText( text );
1118}
1119
1120wxString wxTextCtrl::GetLineText( long lineNo ) const
1121{
1122 wxString result;
1123 if ( IsMultiLine() )
1124 {
1125 GtkTextIter line;
1126 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1127
1128 GtkTextIter end = line;
1129 // avoid skipping to the next line end if this one is empty
1130 if ( !gtk_text_iter_ends_line(&line) )
1131 gtk_text_iter_forward_to_line_end(&end);
1132
1133 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1134 result = wxGTK_CONV_BACK(text);
1135 }
1136 else
1137 {
1138 if (lineNo == 0)
1139 result = GetValue();
1140 }
1141 return result;
1142}
1143
1144void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1145{
1146 /* If you implement this, don't forget to update the documentation!
1147 * (file docs/latex/wx/text.tex) */
1148 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1149}
1150
1151bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1152{
1153 if ( IsMultiLine() )
1154 {
1155 GtkTextIter iter;
1156
1157 if (pos > GetLastPosition())
1158 return false;
1159
1160 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1161
1162 if ( y )
1163 *y = gtk_text_iter_get_line(&iter);
1164 if ( x )
1165 *x = gtk_text_iter_get_line_offset(&iter);
1166 }
1167 else // single line control
1168 {
1169 if ( pos <= GTK_ENTRY(m_text)->text_length )
1170 {
1171 if ( y )
1172 *y = 0;
1173 if ( x )
1174 *x = pos;
1175 }
1176 else
1177 {
1178 // index out of bounds
1179 return false;
1180 }
1181 }
1182
1183 return true;
1184}
1185
1186long wxTextCtrl::XYToPosition(long x, long y ) const
1187{
1188 if ( IsSingleLine() )
1189 return 0;
1190
1191 GtkTextIter iter;
1192 if (y >= gtk_text_buffer_get_line_count (m_buffer))
1193 return -1;
1194
1195 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1196 if (x >= gtk_text_iter_get_chars_in_line (&iter))
1197 return -1;
1198
1199 return gtk_text_iter_get_offset(&iter) + x;
1200}
1201
1202int wxTextCtrl::GetLineLength(long lineNo) const
1203{
1204 if ( IsMultiLine() )
1205 {
1206 int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1207 if (lineNo > last_line)
1208 return -1;
1209
1210 GtkTextIter iter;
1211 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1212 // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1213 return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1214 }
1215 else
1216 {
1217 wxString str = GetLineText (lineNo);
1218 return (int) str.length();
1219 }
1220}
1221
1222int wxTextCtrl::GetNumberOfLines() const
1223{
1224 if ( IsMultiLine() )
1225 {
1226 return gtk_text_buffer_get_line_count( m_buffer );
1227 }
1228 else // single line
1229 {
1230 return 1;
1231 }
1232}
1233
1234void wxTextCtrl::SetInsertionPoint( long pos )
1235{
1236 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1237
1238 if ( IsMultiLine() )
1239 {
1240 GtkTextIter iter;
1241 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1242 gtk_text_buffer_place_cursor( m_buffer, &iter );
1243 GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1244 if (IsFrozen())
1245 // defer until Thaw, text view is not using m_buffer now
1246 m_showPositionOnThaw = mark;
1247 else
1248 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1249 }
1250 else
1251 {
1252 // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1253 gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1254 }
1255}
1256
1257void wxTextCtrl::SetInsertionPointEnd()
1258{
1259 SetInsertionPoint(-1);
1260}
1261
1262void wxTextCtrl::SetEditable( bool editable )
1263{
1264 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1265
1266 if ( IsMultiLine() )
1267 {
1268 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1269 }
1270 else
1271 {
1272 gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1273 }
1274}
1275
1276bool wxTextCtrl::Enable( bool enable )
1277{
1278 if (!wxWindowBase::Enable(enable))
1279 {
1280 // nothing to do
1281 return false;
1282 }
1283
1284 gtk_widget_set_sensitive( m_text, enable );
1285
1286 return true;
1287}
1288
1289// wxGTK-specific: called recursively by Enable,
1290// to give widgets an opportunity to correct their colours after they
1291// have been changed by Enable
1292void wxTextCtrl::OnEnabled( bool enable )
1293{
1294 // If we have a custom background colour, we use this colour in both
1295 // disabled and enabled mode, or we end up with a different colour under the
1296 // text.
1297 wxColour oldColour = GetBackgroundColour();
1298 if (oldColour.Ok())
1299 {
1300 // Need to set twice or it'll optimize the useful stuff out
1301 if (oldColour == * wxWHITE)
1302 SetBackgroundColour(*wxBLACK);
1303 else
1304 SetBackgroundColour(*wxWHITE);
1305 SetBackgroundColour(oldColour);
1306 }
1307}
1308
1309void wxTextCtrl::MarkDirty()
1310{
1311 m_modified = true;
1312}
1313
1314void wxTextCtrl::DiscardEdits()
1315{
1316 m_modified = false;
1317}
1318
1319// ----------------------------------------------------------------------------
1320// max text length support
1321// ----------------------------------------------------------------------------
1322
1323bool wxTextCtrl::IgnoreTextUpdate()
1324{
1325 if ( m_countUpdatesToIgnore > 0 )
1326 {
1327 m_countUpdatesToIgnore--;
1328
1329 return true;
1330 }
1331
1332 return false;
1333}
1334
1335bool wxTextCtrl::MarkDirtyOnChange()
1336{
1337 if ( m_dontMarkDirty )
1338 {
1339 m_dontMarkDirty = false;
1340
1341 return false;
1342 }
1343
1344 return true;
1345}
1346
1347void wxTextCtrl::SetMaxLength(unsigned long len)
1348{
1349 if ( !HasFlag(wxTE_MULTILINE) )
1350 {
1351 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1352
1353 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1354 // we had tried to enter more text than allowed by max text length and
1355 // the text wasn't really changed
1356 //
1357 // to detect this and generate TEXT_MAXLEN event instead of
1358 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1359 //
1360 // when max len is set to 0 we disconnect our handler as it means that
1361 // we shouldn't check anything any more
1362 if ( len )
1363 {
1364 g_signal_connect (m_text, "insert_text",
1365 G_CALLBACK (gtk_insert_text_callback), this);
1366 }
1367 else // no checking
1368 {
1369 g_signal_handlers_disconnect_by_func (m_text,
1370 (gpointer) gtk_insert_text_callback, this);
1371 }
1372 }
1373}
1374
1375void wxTextCtrl::SetSelection( long from, long to )
1376{
1377 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1378
1379 if (from == -1 && to == -1)
1380 {
1381 from = 0;
1382 to = GetValue().length();
1383 }
1384
1385 if ( IsMultiLine() )
1386 {
1387 GtkTextIter fromi, toi;
1388 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1389 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1390
1391 gtk_text_buffer_place_cursor( m_buffer, &toi );
1392 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1393 }
1394 else
1395 {
1396 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1397 }
1398}
1399
1400void wxTextCtrl::ShowPosition( long pos )
1401{
1402 if (IsMultiLine())
1403 {
1404 GtkTextIter iter;
1405 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1406 GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1407 gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1408 if (IsFrozen())
1409 // defer until Thaw, text view is not using m_buffer now
1410 m_showPositionOnThaw = mark;
1411 else
1412 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1413 }
1414}
1415
1416wxTextCtrlHitTestResult
1417wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1418{
1419 if ( !IsMultiLine() )
1420 {
1421 // not supported
1422 return wxTE_HT_UNKNOWN;
1423 }
1424
1425 int x, y;
1426 gtk_text_view_window_to_buffer_coords
1427 (
1428 GTK_TEXT_VIEW(m_text),
1429 GTK_TEXT_WINDOW_TEXT,
1430 pt.x, pt.y,
1431 &x, &y
1432 );
1433
1434 GtkTextIter iter;
1435 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1436 if ( pos )
1437 *pos = gtk_text_iter_get_offset(&iter);
1438
1439 return wxTE_HT_ON_TEXT;
1440}
1441
1442long wxTextCtrl::GetInsertionPoint() const
1443{
1444 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1445
1446 if ( IsMultiLine() )
1447 {
1448 // There is no direct accessor for the cursor, but
1449 // internally, the cursor is the "mark" called
1450 // "insert" in the text view's btree structure.
1451
1452 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1453 GtkTextIter cursor;
1454 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1455
1456 return gtk_text_iter_get_offset( &cursor );
1457 }
1458 else
1459 {
1460 return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1461 }
1462}
1463
1464wxTextPos wxTextCtrl::GetLastPosition() const
1465{
1466 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1467
1468 int pos = 0;
1469
1470 if ( IsMultiLine() )
1471 {
1472 GtkTextIter end;
1473 gtk_text_buffer_get_end_iter( m_buffer, &end );
1474
1475 pos = gtk_text_iter_get_offset( &end );
1476 }
1477 else
1478 {
1479 pos = GTK_ENTRY(m_text)->text_length;
1480 }
1481
1482 return (long)pos;
1483}
1484
1485void wxTextCtrl::Remove( long from, long to )
1486{
1487 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1488
1489 if ( IsMultiLine() )
1490 {
1491 GtkTextIter fromi, toi;
1492 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1493 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1494
1495 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1496 }
1497 else // single line
1498 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1499}
1500
1501void wxTextCtrl::Replace( long from, long to, const wxString &value )
1502{
1503 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1504
1505 Remove( from, to );
1506
1507 if (!value.empty())
1508 {
1509 SetInsertionPoint( from );
1510 WriteText( value );
1511 }
1512}
1513
1514void wxTextCtrl::Cut()
1515{
1516 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1517
1518 if ( IsMultiLine() )
1519 g_signal_emit_by_name (m_text, "cut-clipboard");
1520 else
1521 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1522}
1523
1524void wxTextCtrl::Copy()
1525{
1526 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1527
1528 if ( IsMultiLine() )
1529 g_signal_emit_by_name (m_text, "copy-clipboard");
1530 else
1531 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1532}
1533
1534void wxTextCtrl::Paste()
1535{
1536 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1537
1538 if ( IsMultiLine() )
1539 g_signal_emit_by_name (m_text, "paste-clipboard");
1540 else
1541 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1542}
1543
1544// Undo/redo
1545void wxTextCtrl::Undo()
1546{
1547 // TODO
1548 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1549}
1550
1551void wxTextCtrl::Redo()
1552{
1553 // TODO
1554 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1555}
1556
1557bool wxTextCtrl::CanUndo() const
1558{
1559 // TODO
1560 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1561 return false;
1562}
1563
1564bool wxTextCtrl::CanRedo() const
1565{
1566 // TODO
1567 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1568 return false;
1569}
1570
1571// If the return values from and to are the same, there is no
1572// selection.
1573void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1574{
1575 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1576
1577 gint from = -1;
1578 gint to = -1;
1579 bool haveSelection = false;
1580
1581 if ( IsMultiLine() )
1582 {
1583 GtkTextIter ifrom, ito;
1584 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1585 {
1586 haveSelection = true;
1587 from = gtk_text_iter_get_offset(&ifrom);
1588 to = gtk_text_iter_get_offset(&ito);
1589 }
1590 }
1591 else // not multi-line
1592 {
1593 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1594 &from, &to) )
1595 {
1596 haveSelection = true;
1597 }
1598 }
1599
1600 if (! haveSelection )
1601 from = to = GetInsertionPoint();
1602
1603 if ( from > to )
1604 {
1605 // exchange them to be compatible with wxMSW
1606 gint tmp = from;
1607 from = to;
1608 to = tmp;
1609 }
1610
1611 if ( fromOut )
1612 *fromOut = from;
1613 if ( toOut )
1614 *toOut = to;
1615}
1616
1617
1618bool wxTextCtrl::IsEditable() const
1619{
1620 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1621
1622 if ( IsMultiLine() )
1623 {
1624 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1625 }
1626 else
1627 {
1628 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1629 }
1630}
1631
1632bool wxTextCtrl::IsModified() const
1633{
1634 return m_modified;
1635}
1636
1637void wxTextCtrl::Clear()
1638{
1639 SetValue( wxEmptyString );
1640}
1641
1642void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1643{
1644 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1645
1646 if ( key_event.GetKeyCode() == WXK_RETURN )
1647 {
1648 if ( HasFlag(wxTE_PROCESS_ENTER) )
1649 {
1650 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1651 event.SetEventObject(this);
1652 event.SetString(GetValue());
1653 if ( GetEventHandler()->ProcessEvent(event) )
1654 return;
1655 }
1656
1657 // FIXME: this is not the right place to do it, wxDialog::OnCharHook()
1658 // probably is
1659 if ( IsSingleLine() )
1660 {
1661 // This will invoke the dialog default action, such
1662 // as the clicking the default button.
1663
1664 wxWindow *top_frame = m_parent;
1665 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1666 top_frame = top_frame->GetParent();
1667
1668 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1669 {
1670 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1671
1672 if (window->default_widget)
1673 {
1674 gtk_widget_activate (window->default_widget);
1675 return;
1676 }
1677 }
1678 }
1679 }
1680
1681 key_event.Skip();
1682}
1683
1684GtkWidget* wxTextCtrl::GetConnectWidget()
1685{
1686 return GTK_WIDGET(m_text);
1687}
1688
1689GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1690{
1691 if ( IsMultiLine() )
1692 {
1693 return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1694 GTK_TEXT_WINDOW_TEXT );
1695 }
1696 else
1697 {
1698 return GTK_ENTRY(m_text)->text_area;
1699 }
1700}
1701
1702// the font will change for subsequent text insertiongs
1703bool wxTextCtrl::SetFont( const wxFont &font )
1704{
1705 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1706
1707 if ( !wxTextCtrlBase::SetFont(font) )
1708 {
1709 // font didn't change, nothing to do
1710 return false;
1711 }
1712
1713 if ( IsMultiLine() )
1714 {
1715 SetUpdateFont(true);
1716
1717 m_defaultStyle.SetFont(font);
1718
1719 ChangeFontGlobally();
1720 }
1721
1722 return true;
1723}
1724
1725void wxTextCtrl::ChangeFontGlobally()
1726{
1727 // this method is very inefficient and hence should be called as rarely as
1728 // possible!
1729 //
1730 // TODO: it can be implemented much more efficiently for GTK2
1731 wxASSERT_MSG( IsMultiLine(),
1732 _T("shouldn't be called for single line controls") );
1733
1734 wxString value = GetValue();
1735 if ( !value.empty() )
1736 {
1737 SetUpdateFont(false);
1738
1739 Clear();
1740 AppendText(value);
1741 }
1742}
1743
1744bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1745{
1746 if ( !wxControl::SetForegroundColour(colour) )
1747 return false;
1748
1749 // update default fg colour too
1750 m_defaultStyle.SetTextColour(colour);
1751
1752 return true;
1753}
1754
1755bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1756{
1757 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1758
1759 if ( !wxControl::SetBackgroundColour( colour ) )
1760 return false;
1761
1762 if (!m_backgroundColour.Ok())
1763 return false;
1764
1765 // change active background color too
1766 m_defaultStyle.SetBackgroundColour( colour );
1767
1768 return true;
1769}
1770
1771bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1772{
1773 if ( IsMultiLine() )
1774 {
1775 if ( style.IsDefault() )
1776 {
1777 // nothing to do
1778 return true;
1779 }
1780
1781 gint l = gtk_text_buffer_get_char_count( m_buffer );
1782
1783 wxCHECK_MSG( start >= 0 && end <= l, false,
1784 _T("invalid range in wxTextCtrl::SetStyle") );
1785
1786 GtkTextIter starti, endi;
1787 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1788 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1789
1790 wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, style, &starti, &endi );
1791
1792 return true;
1793 }
1794 //else: single line text controls don't support styles
1795
1796 return false;
1797}
1798
1799void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1800{
1801 gtk_widget_modify_style(m_text, style);
1802}
1803
1804void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1805{
1806 Cut();
1807}
1808
1809void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1810{
1811 Copy();
1812}
1813
1814void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1815{
1816 Paste();
1817}
1818
1819void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1820{
1821 Undo();
1822}
1823
1824void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1825{
1826 Redo();
1827}
1828
1829void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1830{
1831 event.Enable( CanCut() );
1832}
1833
1834void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1835{
1836 event.Enable( CanCopy() );
1837}
1838
1839void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1840{
1841 event.Enable( CanPaste() );
1842}
1843
1844void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1845{
1846 event.Enable( CanUndo() );
1847}
1848
1849void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1850{
1851 event.Enable( CanRedo() );
1852}
1853
1854wxSize wxTextCtrl::DoGetBestSize() const
1855{
1856 // FIXME should be different for multi-line controls...
1857 wxSize ret( wxControl::DoGetBestSize() );
1858 wxSize best(80, ret.y);
1859 CacheBestSize(best);
1860 return best;
1861}
1862
1863// ----------------------------------------------------------------------------
1864// freeze/thaw
1865// ----------------------------------------------------------------------------
1866
1867void wxTextCtrl::Freeze()
1868{
1869 wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1870
1871 if ( HasFlag(wxTE_MULTILINE) )
1872 {
1873 if (m_freezeCount++ == 0)
1874 {
1875 // freeze textview updates and remove buffer
1876 g_signal_connect (m_text, "expose_event",
1877 G_CALLBACK (gtk_text_exposed_callback), this);
1878 g_signal_connect (m_widget, "expose_event",
1879 G_CALLBACK (gtk_text_exposed_callback), this);
1880 gtk_widget_set_sensitive(m_widget, false);
1881 g_object_ref(m_buffer);
1882 GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1883 GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
1884 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1885 // gtk_text_view_set_buffer adds its own reference
1886 g_object_unref(buf_new);
1887 // This mark should be deleted when the buffer is changed,
1888 // but it's not (in GTK+ up to at least 2.10.6).
1889 // Otherwise these anonymous marks start to build up in the buffer,
1890 // and Freeze takes longer and longer each time it is called.
1891 if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1892 gtk_text_buffer_delete_mark(m_buffer, mark);
1893 }
1894 }
1895}
1896
1897void wxTextCtrl::Thaw()
1898{
1899 if ( HasFlag(wxTE_MULTILINE) )
1900 {
1901 wxCHECK_RET(m_freezeCount != 0, _T("Thaw() without matching Freeze()"));
1902
1903 if (--m_freezeCount == 0)
1904 {
1905 // Reattach buffer and thaw textview updates
1906 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1907 g_object_unref(m_buffer);
1908 gtk_widget_set_sensitive(m_widget, true);
1909 g_signal_handlers_disconnect_by_func (m_widget,
1910 (gpointer) gtk_text_exposed_callback, this);
1911 g_signal_handlers_disconnect_by_func (m_text,
1912 (gpointer) gtk_text_exposed_callback, this);
1913 if (m_showPositionOnThaw != NULL)
1914 {
1915 gtk_text_view_scroll_mark_onscreen(
1916 GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1917 m_showPositionOnThaw = NULL;
1918 }
1919 }
1920 }
1921}
1922
1923// ----------------------------------------------------------------------------
1924// wxTextUrlEvent passing if style & wxTE_AUTO_URL
1925// ----------------------------------------------------------------------------
1926
1927// FIXME: when dragging on a link the sample gets an "Unknown event".
1928// This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1929// a buggy sample, or something else
1930void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1931{
1932 event.Skip();
1933 if( !HasFlag(wxTE_AUTO_URL) )
1934 return;
1935
1936 gint x, y;
1937 GtkTextIter start, end;
1938 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1939 "wxUrl");
1940
1941 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1942 event.GetX(), event.GetY(), &x, &y);
1943
1944 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1945 if (!gtk_text_iter_has_tag(&end, tag))
1946 {
1947 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1948 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1949 return;
1950 }
1951
1952 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1953 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1954
1955 start = end;
1956 if(!gtk_text_iter_begins_tag(&start, tag))
1957 gtk_text_iter_backward_to_tag_toggle(&start, tag);
1958 if(!gtk_text_iter_ends_tag(&end, tag))
1959 gtk_text_iter_forward_to_tag_toggle(&end, tag);
1960
1961 // Native context menu is probably not desired on an URL.
1962 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1963 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1964 event.Skip(false);
1965
1966 wxTextUrlEvent url_event(m_windowId, event,
1967 gtk_text_iter_get_offset(&start),
1968 gtk_text_iter_get_offset(&end));
1969
1970 InitCommandEvent(url_event);
1971 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1972 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1973 GetEventHandler()->ProcessEvent(url_event);
1974}
1975
1976bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1977{
1978 bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1979
1980 // GtkTextView starts a drag operation when left mouse button is pressed
1981 // and ends it when it is released and if it doesn't get the release event
1982 // the next click on a control results in an assertion failure inside
1983 // gtk_text_view_start_selection_drag() which simply *kills* the program
1984 // without anything we can do about it, so always let GTK+ have this event
1985 return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1986}
1987
1988// static
1989wxVisualAttributes
1990wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1991{
1992 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1993}
1994
1995#endif // wxUSE_TEXTCTRL
wxWidgets (Impactor)