]> git.saurik.com Git - wxWidgets.git/blame_incremental - src/gtk/textctrl.cpp
projects / wxWidgets.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
destroy m_impl even if an exception is thrown from the main loop
[wxWidgets.git] / src / gtk / textctrl.cpp
... / ...
CommitLineData
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#include "wx/textctrl.h"
14
15#ifndef WX_PRECOMP
16 #include "wx/intl.h"
17 #include "wx/log.h"
18 #include "wx/utils.h"
19 #include "wx/settings.h"
20 #include "wx/math.h"
21#endif
22
23#include "wx/strconv.h"
24#include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
25
26#include <sys/types.h>
27#include <sys/stat.h>
28#include <ctype.h>
29
30#include "wx/gtk/private.h"
31
32// ----------------------------------------------------------------------------
33// helpers
34// ----------------------------------------------------------------------------
35
36extern "C" {
37static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
38 GtkTextTag *tag,
39 GtkTextIter *start,
40 GtkTextIter *end,
41 char *prefix)
42{
43 gchar *name;
44 g_object_get (tag, "name", &name, NULL);
45
46 if (!name || strncmp(name, prefix, strlen(prefix)))
47 // anonymous tag or not starting with prefix - don't remove
48 g_signal_stop_emission_by_name (buffer, "remove_tag");
49
50 g_free(name);
51}
52}
53
54static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
55 GtkTextBuffer *text_buffer,
56 const wxTextAttr& attr,
57 GtkTextIter *start,
58 GtkTextIter *end)
59{
60 static gchar buf[1024];
61 GtkTextTag *tag;
62
63 gulong remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
64 G_CALLBACK (wxGtkOnRemoveTag), gpointer("WX"));
65 gtk_text_buffer_remove_all_tags(text_buffer, start, end);
66 g_signal_handler_disconnect (text_buffer, remove_handler_id);
67
68 if (attr.HasFont())
69 {
70 PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
71 wxGtkString font_string(pango_font_description_to_string(font_description));
72 g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
73 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
74 buf );
75 if (!tag)
76 tag = gtk_text_buffer_create_tag( text_buffer, buf,
77 "font-desc", font_description,
78 NULL );
79 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
80
81 if (attr.GetFont().GetUnderlined())
82 {
83 g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
84 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
85 buf );
86 if (!tag)
87 tag = gtk_text_buffer_create_tag( text_buffer, buf,
88 "underline-set", TRUE,
89 "underline", PANGO_UNDERLINE_SINGLE,
90 NULL );
91 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
92 }
93 }
94
95 if (attr.HasTextColour())
96 {
97 const GdkColor *colFg = attr.GetTextColour().GetColor();
98 g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
99 colFg->red, colFg->green, colFg->blue);
100 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
101 buf );
102 if (!tag)
103 tag = gtk_text_buffer_create_tag( text_buffer, buf,
104 "foreground-gdk", colFg, NULL );
105 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
106 }
107
108 if (attr.HasBackgroundColour())
109 {
110 const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
111 g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
112 colBg->red, colBg->green, colBg->blue);
113 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
114 buf );
115 if (!tag)
116 tag = gtk_text_buffer_create_tag( text_buffer, buf,
117 "background-gdk", colBg, NULL );
118 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
119 }
120
121 if (attr.HasAlignment())
122 {
123 GtkTextIter para_start, para_end = *end;
124 gtk_text_buffer_get_iter_at_line( text_buffer,
125 &para_start,
126 gtk_text_iter_get_line(start) );
127 gtk_text_iter_forward_line(&para_end);
128
129 remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
130 G_CALLBACK(wxGtkOnRemoveTag),
131 gpointer("WXALIGNMENT"));
132 gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
133 g_signal_handler_disconnect (text_buffer, remove_handler_id);
134
135 GtkJustification align;
136 switch (attr.GetAlignment())
137 {
138 default:
139 align = GTK_JUSTIFY_LEFT;
140 break;
141 case wxTEXT_ALIGNMENT_RIGHT:
142 align = GTK_JUSTIFY_RIGHT;
143 break;
144 case wxTEXT_ALIGNMENT_CENTER:
145 align = GTK_JUSTIFY_CENTER;
146 break;
147 // gtk+ doesn't support justify as of gtk+-2.7.4
148 }
149
150 g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
151 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
152 buf );
153 if (!tag)
154 tag = gtk_text_buffer_create_tag( text_buffer, buf,
155 "justification", align, NULL );
156 gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
157 }
158
159 if (attr.HasLeftIndent())
160 {
161 // Indentation attribute
162
163 // Clear old indentation tags
164 GtkTextIter para_start, para_end = *end;
165 gtk_text_buffer_get_iter_at_line( text_buffer,
166 &para_start,
167 gtk_text_iter_get_line(start) );
168 gtk_text_iter_forward_line(&para_end);
169
170 remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
171 G_CALLBACK(wxGtkOnRemoveTag),
172 gpointer("WXINDENT"));
173 gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
174 g_signal_handler_disconnect (text_buffer, remove_handler_id);
175
176 // Convert indent from 1/10th of a mm into pixels
177 float factor;
178#if GTK_CHECK_VERSION(2,2,0)
179 if (!gtk_check_version(2,2,0))
180 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
181 gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
182 else
183#endif
184 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
185
186 const int indent = (int)(factor * attr.GetLeftIndent());
187 const int subIndent = (int)(factor * attr.GetLeftSubIndent());
188
189 gint gindent;
190 gint gsubindent;
191
192 if (subIndent >= 0)
193 {
194 gindent = indent;
195 gsubindent = -subIndent;
196 }
197 else
198 {
199 gindent = -subIndent;
200 gsubindent = indent;
201 }
202
203 g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
204 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
205 buf );
206 if (!tag)
207 tag = gtk_text_buffer_create_tag( text_buffer, buf,
208 "left-margin", gindent, "indent", gsubindent, NULL );
209 gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
210 }
211
212 if (attr.HasTabs())
213 {
214 // Set tab stops
215
216 // Clear old tabs
217 GtkTextIter para_start, para_end = *end;
218 gtk_text_buffer_get_iter_at_line( text_buffer,
219 &para_start,
220 gtk_text_iter_get_line(start) );
221 gtk_text_iter_forward_line(&para_end);
222
223 remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
224 G_CALLBACK(wxGtkOnRemoveTag),
225 gpointer("WXTABS"));
226 gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
227 g_signal_handler_disconnect (text_buffer, remove_handler_id);
228
229 const wxArrayInt& tabs = attr.GetTabs();
230
231 wxString tagname = _T("WXTABS");
232 g_snprintf(buf, sizeof(buf), "WXTABS");
233 for (size_t i = 0; i < tabs.GetCount(); i++)
234 tagname += wxString::Format(_T(" %d"), tabs[i]);
235
236 const wxWX2MBbuf buf = tagname.mb_str(wxConvUTF8);
237
238 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
239 buf );
240 if (!tag)
241 {
242 // Factor to convert from 1/10th of a mm into pixels
243 float factor;
244#if GTK_CHECK_VERSION(2,2,0)
245 if (!gtk_check_version(2,2,0))
246 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
247 gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
248 else
249#endif
250 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
251
252 PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
253 for (size_t i = 0; i < tabs.GetCount(); i++)
254 pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
255 tag = gtk_text_buffer_create_tag( text_buffer, buf,
256 "tabs", tabArray, NULL );
257 pango_tab_array_free(tabArray);
258 }
259 gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
260 }
261}
262
263static void wxGtkTextInsert(GtkWidget *text,
264 GtkTextBuffer *text_buffer,
265 const wxTextAttr& attr,
266 const wxCharBuffer& buffer)
267
268{
269 gint start_offset;
270 GtkTextIter iter, start;
271
272 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
273 gtk_text_buffer_get_insert (text_buffer) );
274 start_offset = gtk_text_iter_get_offset (&iter);
275 gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
276
277 gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
278
279 wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
280}
281
282// ----------------------------------------------------------------------------
283// "insert_text" for GtkEntry
284// ----------------------------------------------------------------------------
285
286extern "C" {
287static void
288gtk_insert_text_callback(GtkEditable *editable,
289 const gchar *new_text,
290 gint new_text_length,
291 gint *position,
292 wxTextCtrl *win)
293{
294 if (g_isIdle)
295 wxapp_install_idle_handler();
296
297 // we should only be called if we have a max len limit at all
298 GtkEntry *entry = GTK_ENTRY (editable);
299
300 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
301
302 // check that we don't overflow the max length limit
303 //
304 // FIXME: this doesn't work when we paste a string which is going to be
305 // truncated
306 if ( entry->text_length == entry->text_max_length )
307 {
308 // we don't need to run the base class version at all
309 g_signal_stop_emission_by_name (editable, "insert_text");
310
311 // remember that the next changed signal is to be ignored to avoid
312 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
313 win->IgnoreNextTextUpdate();
314
315 // and generate the correct one ourselves
316 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
317 event.SetEventObject(win);
318 event.SetString(win->GetValue());
319 win->GetEventHandler()->ProcessEvent( event );
320 }
321}
322}
323
324// Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
325
326extern "C" {
327static void
328au_apply_tag_callback(GtkTextBuffer *buffer,
329 GtkTextTag *tag,
330 GtkTextIter *start,
331 GtkTextIter *end,
332 gpointer textctrl)
333{
334 if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
335 g_signal_stop_emission_by_name (buffer, "apply_tag");
336}
337}
338
339//-----------------------------------------------------------------------------
340// GtkTextCharPredicates for gtk_text_iter_*_find_char
341//-----------------------------------------------------------------------------
342
343extern "C" {
344static gboolean
345pred_whitespace (gunichar ch, gpointer user_data)
346{
347 return g_unichar_isspace(ch);
348}
349}
350
351extern "C" {
352static gboolean
353pred_non_whitespace (gunichar ch, gpointer user_data)
354{
355 return !g_unichar_isspace(ch);
356}
357}
358
359extern "C" {
360static gboolean
361pred_nonpunct (gunichar ch, gpointer user_data)
362{
363 return !g_unichar_ispunct(ch);
364}
365}
366
367extern "C" {
368static gboolean
369pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
370{
371 return !g_unichar_ispunct(ch) || ch == '/';
372}
373}
374
375//-----------------------------------------------------------------------------
376// Check for links between s and e and correct tags as necessary
377//-----------------------------------------------------------------------------
378
379// This function should be made match better while being efficient at one point.
380// Most probably with a row of regular expressions.
381extern "C" {
382static void
383au_check_word( GtkTextIter *s, GtkTextIter *e )
384{
385 static const char *URIPrefixes[] =
386 {
387 "http://",
388 "ftp://",
389 "www.",
390 "ftp.",
391 "mailto://",
392 "https://",
393 "file://",
394 "nntp://",
395 "news://",
396 "telnet://",
397 "mms://",
398 "gopher://",
399 "prospero://",
400 "wais://",
401 };
402
403 GtkTextIter start = *s, end = *e;
404 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
405
406 // Get our special link tag
407 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
408
409 // Get rid of punctuation from beginning and end.
410 // Might want to move this to au_check_range if an improved link checking doesn't
411 // use some intelligent punctuation checking itself (beware of undesired iter modifications).
412 if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
413 gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
414
415 gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
416 gtk_text_iter_forward_char(&end);
417
418 gchar* text = gtk_text_iter_get_text( &start, &end );
419 size_t len = strlen(text), prefix_len;
420 size_t n;
421
422 for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
423 {
424 prefix_len = strlen(URIPrefixes[n]);
425 if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
426 break;
427 }
428
429 if(n < WXSIZEOF(URIPrefixes))
430 {
431 gulong signal_id = g_signal_handler_find (buffer,
432 (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
433 0, 0, NULL,
434 (gpointer)au_apply_tag_callback, NULL);
435
436 g_signal_handler_block (buffer, signal_id);
437 gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
438 g_signal_handler_unblock (buffer, signal_id);
439 }
440}
441}
442
443extern "C" {
444static void
445au_check_range(GtkTextIter *s,
446 GtkTextIter *range_end)
447{
448 GtkTextIter range_start = *s;
449 GtkTextIter word_end;
450 GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
451 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
452
453 gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
454
455 if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
456 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
457
458 while(!gtk_text_iter_equal(&range_start, range_end))
459 {
460 word_end = range_start;
461 gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
462
463 // Now we should have a word delimited by range_start and word_end, correct link tags
464 au_check_word(&range_start, &word_end);
465
466 range_start = word_end;
467 gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
468 }
469}
470}
471
472//-----------------------------------------------------------------------------
473// "insert-text" for GtkTextBuffer
474//-----------------------------------------------------------------------------
475
476extern "C" {
477static void
478au_insert_text_callback(GtkTextBuffer *buffer,
479 GtkTextIter *end,
480 gchar *text,
481 gint len,
482 wxTextCtrl *win)
483{
484 if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
485 return;
486
487 GtkTextIter start = *end;
488 gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
489
490 GtkTextIter line_start = start;
491 GtkTextIter line_end = *end;
492 GtkTextIter words_start = start;
493 GtkTextIter words_end = *end;
494
495 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
496 gtk_text_iter_forward_to_line_end(&line_end);
497 gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
498 gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
499
500 au_check_range(&words_start, &words_end);
501}
502}
503
504//-----------------------------------------------------------------------------
505// "delete-range" for GtkTextBuffer
506//-----------------------------------------------------------------------------
507
508extern "C" {
509static void
510au_delete_range_callback(GtkTextBuffer *buffer,
511 GtkTextIter *start,
512 GtkTextIter *end,
513 wxTextCtrl *win)
514{
515 if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
516 return;
517
518 GtkTextIter line_start = *start, line_end = *end;
519
520 gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
521 gtk_text_iter_forward_to_line_end(&line_end);
522 gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
523 gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
524
525 au_check_range(start, end);
526}
527}
528
529
530//-----------------------------------------------------------------------------
531// "changed"
532//-----------------------------------------------------------------------------
533
534extern "C" {
535static void
536gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
537{
538 if ( win->IgnoreTextUpdate() )
539 return;
540
541 if (!win->m_hasVMT) return;
542
543 if (g_isIdle)
544 wxapp_install_idle_handler();
545
546 if ( win->MarkDirtyOnChange() )
547 win->MarkDirty();
548
549 win->SendTextUpdatedEvent();
550}
551}
552
553//-----------------------------------------------------------------------------
554// clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
555//-----------------------------------------------------------------------------
556
557// common part of the event handlers below
558static void
559handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
560 wxEventType eventType, const gchar * signal_name)
561{
562 wxClipboardTextEvent event( eventType, win->GetId() );
563 event.SetEventObject( win );
564 if ( win->GetEventHandler()->ProcessEvent( event ) )
565 {
566 // don't let the default processing to take place if we did something
567 // ourselves in the event handler
568 g_signal_stop_emission_by_name (widget, signal_name);
569 }
570}
571
572extern "C" {
573static void
574gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
575{
576 handle_text_clipboard_callback(
577 widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
578}
579
580static void
581gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
582{
583 handle_text_clipboard_callback(
584 widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
585}
586
587static void
588gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
589{
590 handle_text_clipboard_callback(
591 widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
592}
593}
594
595//-----------------------------------------------------------------------------
596// "expose_event" from scrolled window and textview
597//-----------------------------------------------------------------------------
598
599extern "C" {
600static gboolean
601gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
602{
603 return TRUE;
604}
605}
606
607
608//-----------------------------------------------------------------------------
609// wxTextCtrl
610//-----------------------------------------------------------------------------
611
612IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
613
614BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
615 EVT_CHAR(wxTextCtrl::OnChar)
616
617 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
618 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
619 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
620 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
621 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
622
623 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
624 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
625 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
626 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
627 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
628
629 // wxTE_AUTO_URL wxTextUrl support. Currently only creates
630 // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
631 EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
632 EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
633 EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
634 EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
635 EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
636 EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
637 EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
638END_EVENT_TABLE()
639
640void wxTextCtrl::Init()
641{
642 m_dontMarkDirty =
643 m_modified = false;
644
645 m_countUpdatesToIgnore = 0;
646
647 SetUpdateFont(false);
648
649 m_text = NULL;
650 m_freezeCount = 0;
651 m_showPositionOnThaw = NULL;
652 m_gdkHandCursor = NULL;
653 m_gdkXTermCursor = NULL;
654}
655
656wxTextCtrl::~wxTextCtrl()
657{
658 if(m_gdkHandCursor)
659 gdk_cursor_unref(m_gdkHandCursor);
660 if(m_gdkXTermCursor)
661 gdk_cursor_unref(m_gdkXTermCursor);
662}
663
664wxTextCtrl::wxTextCtrl( wxWindow *parent,
665 wxWindowID id,
666 const wxString &value,
667 const wxPoint &pos,
668 const wxSize &size,
669 long style,
670 const wxValidator& validator,
671 const wxString &name )
672{
673 Init();
674
675 Create( parent, id, value, pos, size, style, validator, name );
676}
677
678bool wxTextCtrl::Create( wxWindow *parent,
679 wxWindowID id,
680 const wxString &value,
681 const wxPoint &pos,
682 const wxSize &size,
683 long style,
684 const wxValidator& validator,
685 const wxString &name )
686{
687 m_needParent = true;
688 m_acceptsFocus = true;
689
690 if (!PreCreation( parent, pos, size ) ||
691 !CreateBase( parent, id, pos, size, style, validator, name ))
692 {
693 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
694 return false;
695 }
696
697 bool multi_line = (style & wxTE_MULTILINE) != 0;
698
699 if (multi_line)
700 {
701 // Create view
702 m_text = gtk_text_view_new();
703
704 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
705
706 // create "ShowPosition" marker
707 GtkTextIter iter;
708 gtk_text_buffer_get_start_iter(m_buffer, &iter);
709 gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
710
711 // create scrolled window
712 m_widget = gtk_scrolled_window_new( NULL, NULL );
713 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
714 GTK_POLICY_AUTOMATIC,
715 style & wxTE_NO_VSCROLL
716 ? GTK_POLICY_NEVER
717 : GTK_POLICY_AUTOMATIC );
718 // for ScrollLines/Pages
719 m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
720
721 // Insert view into scrolled window
722 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
723
724 GTKSetWrapMode();
725
726 GtkScrolledWindowSetBorder(m_widget, style);
727
728 gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
729
730 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
731 }
732 else
733 {
734 // a single-line text control: no need for scrollbars
735 m_widget =
736 m_text = gtk_entry_new();
737
738 if (style & wxNO_BORDER)
739 g_object_set (m_text, "has-frame", FALSE, NULL);
740 }
741
742 m_parent->DoAddChild( this );
743
744 m_focusWidget = m_text;
745
746 PostCreation(size);
747
748 if (multi_line)
749 {
750 gtk_widget_show(m_text);
751 }
752
753 if (!value.empty())
754 {
755 SetValue( value );
756 }
757
758 if (style & wxTE_PASSWORD)
759 GTKSetVisibility();
760
761 if (style & wxTE_READONLY)
762 GTKSetEditable();
763
764 // left justification (alignment) is the default anyhow
765 if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
766 GTKSetJustification();
767
768 // We want to be notified about text changes.
769 if (multi_line)
770 {
771 g_signal_connect (m_buffer, "changed",
772 G_CALLBACK (gtk_text_changed_callback), this);
773
774 // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
775 if (style & wxTE_AUTO_URL)
776 {
777 GtkTextIter start, end;
778 m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
779 m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
780
781 // We create our wxUrl tag here for slight efficiency gain - we
782 // don't have to check for the tag existance in callbacks,
783 // hereby it's guaranteed to exist.
784 gtk_text_buffer_create_tag(m_buffer, "wxUrl",
785 "foreground", "blue",
786 "underline", PANGO_UNDERLINE_SINGLE,
787 NULL);
788
789 // Check for URLs after each text change
790 g_signal_connect_after (m_buffer, "insert_text",
791 G_CALLBACK (au_insert_text_callback), this);
792 g_signal_connect_after (m_buffer, "delete_range",
793 G_CALLBACK (au_delete_range_callback), this);
794
795 // Block all wxUrl tag applying unless we do it ourselves, in which case we
796 // block this callback temporarily. This takes care of gtk+ internal
797 // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
798 // which is undesired because only a part of the URL might be copied.
799 // The insert-text signal emitted inside it will take care of newly formed
800 // or wholly copied URLs.
801 g_signal_connect (m_buffer, "apply_tag",
802 G_CALLBACK (au_apply_tag_callback), NULL);
803
804 // Check for URLs in the initial string passed to Create
805 gtk_text_buffer_get_start_iter(m_buffer, &start);
806 gtk_text_buffer_get_end_iter(m_buffer, &end);
807 au_check_range(&start, &end);
808 }
809 }
810 else
811 {
812 g_signal_connect (m_text, "changed",
813 G_CALLBACK (gtk_text_changed_callback), this);
814 }
815
816 g_signal_connect (m_text, "copy-clipboard",
817 G_CALLBACK (gtk_copy_clipboard_callback), this);
818 g_signal_connect (m_text, "cut-clipboard",
819 G_CALLBACK (gtk_cut_clipboard_callback), this);
820 g_signal_connect (m_text, "paste-clipboard",
821 G_CALLBACK (gtk_paste_clipboard_callback), this);
822
823 m_cursor = wxCursor( wxCURSOR_IBEAM );
824
825 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
826 SetDefaultStyle( attrDef );
827
828 return true;
829}
830
831// ----------------------------------------------------------------------------
832// flags handling
833// ----------------------------------------------------------------------------
834
835void wxTextCtrl::GTKSetEditable()
836{
837 gboolean editable = !HasFlag(wxTE_READONLY);
838 if ( IsSingleLine() )
839 gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
840 else
841 gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
842}
843
844void wxTextCtrl::GTKSetVisibility()
845{
846 // VZ: shouldn't we assert if wxTE_PASSWORD is set for multiline control?
847 if ( IsSingleLine() )
848 gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
849}
850
851void wxTextCtrl::GTKSetWrapMode()
852{
853 // no wrapping in single line controls
854 if ( !IsMultiLine() )
855 return;
856
857 // translate wx wrapping style to GTK+
858 GtkWrapMode wrap;
859 if ( HasFlag( wxTE_DONTWRAP ) )
860 wrap = GTK_WRAP_NONE;
861 else if ( HasFlag( wxTE_CHARWRAP ) )
862 wrap = GTK_WRAP_CHAR;
863 else if ( HasFlag( wxTE_WORDWRAP ) )
864 wrap = GTK_WRAP_WORD;
865 else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
866 {
867 // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
868#ifdef __WXGTK24__
869 if ( !gtk_check_version(2,4,0) )
870 {
871 wrap = GTK_WRAP_WORD_CHAR;
872 }
873 else
874#endif // __WXGTK24__
875 wrap = GTK_WRAP_WORD;
876 }
877
878 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
879}
880
881void wxTextCtrl::GTKSetJustification()
882{
883 if ( IsMultiLine() )
884 {
885 GtkJustification just;
886 if ( HasFlag(wxTE_RIGHT) )
887 just = GTK_JUSTIFY_RIGHT;
888 else if ( HasFlag(wxTE_CENTRE) )
889 just = GTK_JUSTIFY_CENTER;
890 else // wxTE_LEFT == 0
891 just = GTK_JUSTIFY_LEFT;
892
893 gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
894 }
895 else // single line
896 {
897#ifdef __WXGTK24__
898 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
899 if (!gtk_check_version(2,4,0))
900 {
901 gfloat align;
902 if ( HasFlag(wxTE_RIGHT) )
903 align = 1.0;
904 else if ( HasFlag(wxTE_CENTRE) )
905 align = 0.5;
906 else // single line
907 align = 0.0;
908
909 gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
910 }
911#endif // __WXGTK24__
912 }
913
914}
915
916void wxTextCtrl::SetWindowStyleFlag(long style)
917{
918 long styleOld = GetWindowStyleFlag();
919
920 wxTextCtrlBase::SetWindowStyleFlag(style);
921
922 if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
923 GTKSetEditable();
924
925 if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
926 GTKSetVisibility();
927
928 static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
929 if ( (style & flagsWrap) != (styleOld & flagsWrap) )
930 GTKSetWrapMode();
931
932 static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
933 if ( (style & flagsAlign) != (styleOld & flagsAlign) )
934 GTKSetJustification();
935}
936
937// ----------------------------------------------------------------------------
938// control value
939// ----------------------------------------------------------------------------
940
941wxString wxTextCtrl::GetValue() const
942{
943 wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
944
945 wxString tmp;
946 if ( IsMultiLine() )
947 {
948 GtkTextIter start;
949 gtk_text_buffer_get_start_iter( m_buffer, &start );
950 GtkTextIter end;
951 gtk_text_buffer_get_end_iter( m_buffer, &end );
952 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
953
954 const wxWxCharBuffer buf = wxGTK_CONV_BACK(text);
955 if ( buf )
956 tmp = buf;
957 }
958 else
959 {
960 const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
961 const wxWxCharBuffer buf = wxGTK_CONV_BACK( text );
962 if ( buf )
963 tmp = buf;
964 }
965
966 return tmp;
967}
968
969wxFontEncoding wxTextCtrl::GetTextEncoding() const
970{
971 // GTK+ uses UTF-8 internally, we need to convert to it but from which
972 // encoding?
973
974 // first check the default text style (we intentionally don't check the
975 // style for the current position as it doesn't make sense for SetValue())
976 const wxTextAttr& style = GetDefaultStyle();
977 wxFontEncoding enc = style.HasFont() ? style.GetFont().GetEncoding()
978 : wxFONTENCODING_SYSTEM;
979
980 // fall back to the controls font if no style
981 if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
982 enc = GetFont().GetEncoding();
983
984 return enc;
985}
986
987bool wxTextCtrl::IsEmpty() const
988{
989 if ( IsMultiLine() )
990 return gtk_text_buffer_get_char_count(m_buffer) == 0;
991
992 return wxTextCtrlBase::IsEmpty();
993}
994
995void wxTextCtrl::DoSetValue( const wxString &value, int flags )
996{
997 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
998
999 // the control won't be modified any more as we programmatically replace
1000 // all the existing text, so reset the flag and don't set it again (and do
1001 // it now, before the text event handler is ran so that IsModified() called
1002 // from there returns the expected value)
1003 m_modified = false;
1004 DontMarkDirtyOnNextChange();
1005
1006 const wxCharBuffer buffer(wxGTK_CONV_ENC(value, GetTextEncoding()));
1007 if ( !buffer )
1008 {
1009 // see comment in WriteText() as to why we must warn the user about
1010 // this
1011 wxLogWarning(_("Failed to set text in the text control."));
1012 return;
1013 }
1014
1015 // if the control is not empty, two "changed" signals are emitted,
1016 // otherwise only one and we need to ignore either both or one of them
1017 int ignore = flags & SetValue_SendEvent ? 0 : 1;
1018 if ( !IsEmpty() )
1019 ignore++;
1020
1021 if ( ignore )
1022 IgnoreNextTextUpdate(ignore);
1023
1024 if ( IsMultiLine() )
1025 {
1026 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
1027 }
1028 else // single line
1029 {
1030 gtk_entry_set_text( GTK_ENTRY(m_text), buffer );
1031 }
1032
1033 // if, for whatever reason, the callback wasn't called the expected number
1034 // of times, still reset the flags to the default values
1035 m_dontMarkDirty = false;
1036 m_countUpdatesToIgnore = 0;
1037
1038
1039 // GRG, Jun/2000: Changed this after a lot of discussion in
1040 // the lists. wxWidgets 2.2 will have a set of flags to
1041 // customize this behaviour.
1042 SetInsertionPoint(0);
1043}
1044
1045void wxTextCtrl::WriteText( const wxString &text )
1046{
1047 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1048
1049 if ( text.empty() )
1050 return;
1051
1052 // check if we have a specific style for the current position
1053 wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1054 wxTextAttr style;
1055 if ( GetStyle(GetInsertionPoint(), style) && style.HasFont() )
1056 {
1057 enc = style.GetFont().GetEncoding();
1058 }
1059
1060 if ( enc == wxFONTENCODING_SYSTEM )
1061 enc = GetTextEncoding();
1062
1063 const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1064 if ( !buffer )
1065 {
1066 // we must log an error here as losing the text like this can be a
1067 // serious problem (e.g. imagine the document edited by user being
1068 // empty instead of containing the correct text)
1069 wxLogWarning(_("Failed to insert text in the control."));
1070 return;
1071 }
1072
1073 // we're changing the text programmatically
1074 DontMarkDirtyOnNextChange();
1075
1076 if ( IsMultiLine() )
1077 {
1078 // First remove the selection if there is one
1079 // TODO: Is there an easier GTK specific way to do this?
1080 long from, to;
1081 GetSelection(&from, &to);
1082 if (from != to)
1083 Remove(from, to);
1084
1085 // Insert the text
1086 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1087
1088 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1089 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1090 // won't work when frozen, text view is not using m_buffer then
1091 if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
1092 {
1093 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1094 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1095 }
1096 }
1097 else // single line
1098 {
1099 // First remove the selection if there is one
1100 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1101
1102 // This moves the cursor pos to behind the inserted text.
1103 gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
1104
1105 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1106
1107 // Bring entry's cursor uptodate.
1108 gtk_editable_set_position( GTK_EDITABLE(m_text), len );
1109 }
1110}
1111
1112void wxTextCtrl::AppendText( const wxString &text )
1113{
1114 SetInsertionPointEnd();
1115 WriteText( text );
1116}
1117
1118wxString wxTextCtrl::GetLineText( long lineNo ) const
1119{
1120 wxString result;
1121 if ( IsMultiLine() )
1122 {
1123 GtkTextIter line;
1124 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1125 GtkTextIter end = line;
1126 gtk_text_iter_forward_to_line_end(&end);
1127 wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1128 result = wxGTK_CONV_BACK(text);
1129 }
1130 else
1131 {
1132 if (lineNo == 0)
1133 result = GetValue();
1134 }
1135 return result;
1136}
1137
1138void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1139{
1140 /* If you implement this, don't forget to update the documentation!
1141 * (file docs/latex/wx/text.tex) */
1142 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1143}
1144
1145bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1146{
1147 if ( IsMultiLine() )
1148 {
1149 GtkTextIter iter;
1150
1151 if (pos > GetLastPosition())
1152 return false;
1153
1154 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1155
1156 if ( y )
1157 *y = gtk_text_iter_get_line(&iter);
1158 if ( x )
1159 *x = gtk_text_iter_get_line_offset(&iter);
1160 }
1161 else // single line control
1162 {
1163 if ( pos <= GTK_ENTRY(m_text)->text_length )
1164 {
1165 if ( y )
1166 *y = 0;
1167 if ( x )
1168 *x = pos;
1169 }
1170 else
1171 {
1172 // index out of bounds
1173 return false;
1174 }
1175 }
1176
1177 return true;
1178}
1179
1180long wxTextCtrl::XYToPosition(long x, long y ) const
1181{
1182 if ( IsSingleLine() )
1183 return 0;
1184
1185 GtkTextIter iter;
1186 if (y >= gtk_text_buffer_get_line_count (m_buffer))
1187 return -1;
1188
1189 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1190 if (x >= gtk_text_iter_get_chars_in_line (&iter))
1191 return -1;
1192
1193 return gtk_text_iter_get_offset(&iter) + x;
1194}
1195
1196int wxTextCtrl::GetLineLength(long lineNo) const
1197{
1198 if ( IsMultiLine() )
1199 {
1200 int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1201 if (lineNo > last_line)
1202 return -1;
1203
1204 GtkTextIter iter;
1205 gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1206 // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1207 return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1208 }
1209 else
1210 {
1211 wxString str = GetLineText (lineNo);
1212 return (int) str.length();
1213 }
1214}
1215
1216int wxTextCtrl::GetNumberOfLines() const
1217{
1218 if ( IsMultiLine() )
1219 {
1220 return gtk_text_buffer_get_line_count( m_buffer );
1221 }
1222 else // single line
1223 {
1224 return 1;
1225 }
1226}
1227
1228void wxTextCtrl::SetInsertionPoint( long pos )
1229{
1230 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1231
1232 if ( IsMultiLine() )
1233 {
1234 GtkTextIter iter;
1235 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1236 gtk_text_buffer_place_cursor( m_buffer, &iter );
1237 GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1238 if (IsFrozen())
1239 // defer until Thaw, text view is not using m_buffer now
1240 m_showPositionOnThaw = mark;
1241 else
1242 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1243 }
1244 else
1245 {
1246 // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1247 gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1248 }
1249}
1250
1251void wxTextCtrl::SetInsertionPointEnd()
1252{
1253 SetInsertionPoint(-1);
1254}
1255
1256void wxTextCtrl::SetEditable( bool editable )
1257{
1258 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1259
1260 if ( IsMultiLine() )
1261 {
1262 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1263 }
1264 else
1265 {
1266 gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1267 }
1268}
1269
1270bool wxTextCtrl::Enable( bool enable )
1271{
1272 if (!wxWindowBase::Enable(enable))
1273 {
1274 // nothing to do
1275 return false;
1276 }
1277
1278 if ( IsMultiLine() )
1279 {
1280 SetEditable( enable );
1281 }
1282 else
1283 {
1284 gtk_widget_set_sensitive( m_text, enable );
1285 }
1286
1287 return true;
1288}
1289
1290// wxGTK-specific: called recursively by Enable,
1291// to give widgets an oppprtunity to correct their colours after they
1292// have been changed by Enable
1293void wxTextCtrl::OnParentEnable( bool enable )
1294{
1295 // If we have a custom background colour, we use this colour in both
1296 // disabled and enabled mode, or we end up with a different colour under the
1297 // text.
1298 wxColour oldColour = GetBackgroundColour();
1299 if (oldColour.Ok())
1300 {
1301 // Need to set twice or it'll optimize the useful stuff out
1302 if (oldColour == * wxWHITE)
1303 SetBackgroundColour(*wxBLACK);
1304 else
1305 SetBackgroundColour(*wxWHITE);
1306 SetBackgroundColour(oldColour);
1307 }
1308}
1309
1310void wxTextCtrl::MarkDirty()
1311{
1312 m_modified = true;
1313}
1314
1315void wxTextCtrl::DiscardEdits()
1316{
1317 m_modified = false;
1318}
1319
1320// ----------------------------------------------------------------------------
1321// max text length support
1322// ----------------------------------------------------------------------------
1323
1324bool wxTextCtrl::IgnoreTextUpdate()
1325{
1326 if ( m_countUpdatesToIgnore > 0 )
1327 {
1328 m_countUpdatesToIgnore--;
1329
1330 return true;
1331 }
1332
1333 return false;
1334}
1335
1336bool wxTextCtrl::MarkDirtyOnChange()
1337{
1338 if ( m_dontMarkDirty )
1339 {
1340 m_dontMarkDirty = false;
1341
1342 return false;
1343 }
1344
1345 return true;
1346}
1347
1348void wxTextCtrl::SetMaxLength(unsigned long len)
1349{
1350 if ( !HasFlag(wxTE_MULTILINE) )
1351 {
1352 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1353
1354 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1355 // we had tried to enter more text than allowed by max text length and
1356 // the text wasn't really changed
1357 //
1358 // to detect this and generate TEXT_MAXLEN event instead of
1359 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1360 //
1361 // when max len is set to 0 we disconnect our handler as it means that
1362 // we shouldn't check anything any more
1363 if ( len )
1364 {
1365 g_signal_connect (m_text, "insert_text",
1366 G_CALLBACK (gtk_insert_text_callback), this);
1367 }
1368 else // no checking
1369 {
1370 g_signal_handlers_disconnect_by_func (m_text,
1371 (gpointer) gtk_insert_text_callback, this);
1372 }
1373 }
1374}
1375
1376void wxTextCtrl::SetSelection( long from, long to )
1377{
1378 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1379
1380 if (from == -1 && to == -1)
1381 {
1382 from = 0;
1383 to = GetValue().length();
1384 }
1385
1386 if ( IsMultiLine() )
1387 {
1388 GtkTextIter fromi, toi;
1389 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1390 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1391
1392 gtk_text_buffer_place_cursor( m_buffer, &toi );
1393 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1394 }
1395 else
1396 {
1397 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1398 }
1399}
1400
1401void wxTextCtrl::ShowPosition( long pos )
1402{
1403 if (IsMultiLine())
1404 {
1405 GtkTextIter iter;
1406 gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1407 GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1408 gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1409 if (IsFrozen())
1410 // defer until Thaw, text view is not using m_buffer now
1411 m_showPositionOnThaw = mark;
1412 else
1413 gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1414 }
1415}
1416
1417wxTextCtrlHitTestResult
1418wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1419{
1420 if ( !IsMultiLine() )
1421 {
1422 // not supported
1423 return wxTE_HT_UNKNOWN;
1424 }
1425
1426 int x, y;
1427 gtk_text_view_window_to_buffer_coords
1428 (
1429 GTK_TEXT_VIEW(m_text),
1430 GTK_TEXT_WINDOW_TEXT,
1431 pt.x, pt.y,
1432 &x, &y
1433 );
1434
1435 GtkTextIter iter;
1436 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1437 if ( pos )
1438 *pos = gtk_text_iter_get_offset(&iter);
1439
1440 return wxTE_HT_ON_TEXT;
1441}
1442
1443long wxTextCtrl::GetInsertionPoint() const
1444{
1445 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1446
1447 if ( IsMultiLine() )
1448 {
1449 // There is no direct accessor for the cursor, but
1450 // internally, the cursor is the "mark" called
1451 // "insert" in the text view's btree structure.
1452
1453 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1454 GtkTextIter cursor;
1455 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1456
1457 return gtk_text_iter_get_offset( &cursor );
1458 }
1459 else
1460 {
1461 return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1462 }
1463}
1464
1465wxTextPos wxTextCtrl::GetLastPosition() const
1466{
1467 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1468
1469 int pos = 0;
1470
1471 if ( IsMultiLine() )
1472 {
1473 GtkTextIter end;
1474 gtk_text_buffer_get_end_iter( m_buffer, &end );
1475
1476 pos = gtk_text_iter_get_offset( &end );
1477 }
1478 else
1479 {
1480 pos = GTK_ENTRY(m_text)->text_length;
1481 }
1482
1483 return (long)pos;
1484}
1485
1486void wxTextCtrl::Remove( long from, long to )
1487{
1488 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1489
1490 if ( IsMultiLine() )
1491 {
1492 GtkTextIter fromi, toi;
1493 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1494 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1495
1496 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1497 }
1498 else // single line
1499 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1500}
1501
1502void wxTextCtrl::Replace( long from, long to, const wxString &value )
1503{
1504 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1505
1506 Remove( from, to );
1507
1508 if (!value.empty())
1509 {
1510 SetInsertionPoint( from );
1511 WriteText( value );
1512 }
1513}
1514
1515void wxTextCtrl::Cut()
1516{
1517 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1518
1519 if ( IsMultiLine() )
1520 g_signal_emit_by_name (m_text, "cut-clipboard");
1521 else
1522 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1523}
1524
1525void wxTextCtrl::Copy()
1526{
1527 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1528
1529 if ( IsMultiLine() )
1530 g_signal_emit_by_name (m_text, "copy-clipboard");
1531 else
1532 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1533}
1534
1535void wxTextCtrl::Paste()
1536{
1537 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1538
1539 if ( IsMultiLine() )
1540 g_signal_emit_by_name (m_text, "paste-clipboard");
1541 else
1542 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1543}
1544
1545// Undo/redo
1546void wxTextCtrl::Undo()
1547{
1548 // TODO
1549 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1550}
1551
1552void wxTextCtrl::Redo()
1553{
1554 // TODO
1555 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1556}
1557
1558bool wxTextCtrl::CanUndo() const
1559{
1560 // TODO
1561 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1562 return false;
1563}
1564
1565bool wxTextCtrl::CanRedo() const
1566{
1567 // TODO
1568 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1569 return false;
1570}
1571
1572// If the return values from and to are the same, there is no
1573// selection.
1574void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1575{
1576 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1577
1578 gint from = -1;
1579 gint to = -1;
1580 bool haveSelection = false;
1581
1582 if ( IsMultiLine() )
1583 {
1584 GtkTextIter ifrom, ito;
1585 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1586 {
1587 haveSelection = true;
1588 from = gtk_text_iter_get_offset(&ifrom);
1589 to = gtk_text_iter_get_offset(&ito);
1590 }
1591 }
1592 else // not multi-line
1593 {
1594 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1595 &from, &to) )
1596 {
1597 haveSelection = true;
1598 }
1599 }
1600
1601 if (! haveSelection )
1602 from = to = GetInsertionPoint();
1603
1604 if ( from > to )
1605 {
1606 // exchange them to be compatible with wxMSW
1607 gint tmp = from;
1608 from = to;
1609 to = tmp;
1610 }
1611
1612 if ( fromOut )
1613 *fromOut = from;
1614 if ( toOut )
1615 *toOut = to;
1616}
1617
1618
1619bool wxTextCtrl::IsEditable() const
1620{
1621 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1622
1623 if ( IsMultiLine() )
1624 {
1625 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1626 }
1627 else
1628 {
1629 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1630 }
1631}
1632
1633bool wxTextCtrl::IsModified() const
1634{
1635 return m_modified;
1636}
1637
1638void wxTextCtrl::Clear()
1639{
1640 SetValue( wxEmptyString );
1641}
1642
1643void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1644{
1645 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1646
1647 if ( key_event.GetKeyCode() == WXK_RETURN )
1648 {
1649 if ( HasFlag(wxTE_PROCESS_ENTER) )
1650 {
1651 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1652 event.SetEventObject(this);
1653 event.SetString(GetValue());
1654 if ( GetEventHandler()->ProcessEvent(event) )
1655 return;
1656 }
1657
1658 // FIXME: this is not the right place to do it, wxDialog::OnCharHook()
1659 // probably is
1660 if ( IsSingleLine() )
1661 {
1662 // This will invoke the dialog default action, such
1663 // as the clicking the default button.
1664
1665 wxWindow *top_frame = m_parent;
1666 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1667 top_frame = top_frame->GetParent();
1668
1669 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1670 {
1671 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1672
1673 if (window->default_widget)
1674 {
1675 gtk_widget_activate (window->default_widget);
1676 return;
1677 }
1678 }
1679 }
1680 }
1681
1682 key_event.Skip();
1683}
1684
1685GtkWidget* wxTextCtrl::GetConnectWidget()
1686{
1687 return GTK_WIDGET(m_text);
1688}
1689
1690GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1691{
1692 if ( IsMultiLine() )
1693 {
1694 return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1695 GTK_TEXT_WINDOW_TEXT );
1696 }
1697 else
1698 {
1699 return GTK_ENTRY(m_text)->text_area;
1700 }
1701}
1702
1703// the font will change for subsequent text insertiongs
1704bool wxTextCtrl::SetFont( const wxFont &font )
1705{
1706 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1707
1708 if ( !wxTextCtrlBase::SetFont(font) )
1709 {
1710 // font didn't change, nothing to do
1711 return false;
1712 }
1713
1714 if ( IsMultiLine() )
1715 {
1716 SetUpdateFont(true);
1717
1718 m_defaultStyle.SetFont(font);
1719
1720 ChangeFontGlobally();
1721 }
1722
1723 return true;
1724}
1725
1726void wxTextCtrl::ChangeFontGlobally()
1727{
1728 // this method is very inefficient and hence should be called as rarely as
1729 // possible!
1730 //
1731 // TODO: it can be implemented much more efficiently for GTK2
1732 wxASSERT_MSG( IsMultiLine(),
1733 _T("shouldn't be called for single line controls") );
1734
1735 wxString value = GetValue();
1736 if ( !value.empty() )
1737 {
1738 SetUpdateFont(false);
1739
1740 Clear();
1741 AppendText(value);
1742 }
1743}
1744
1745bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1746{
1747 if ( !wxControl::SetForegroundColour(colour) )
1748 return false;
1749
1750 // update default fg colour too
1751 m_defaultStyle.SetTextColour(colour);
1752
1753 return true;
1754}
1755
1756bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1757{
1758 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1759
1760 if ( !wxControl::SetBackgroundColour( colour ) )
1761 return false;
1762
1763 if (!m_backgroundColour.Ok())
1764 return false;
1765
1766 // change active background color too
1767 m_defaultStyle.SetBackgroundColour( colour );
1768
1769 return true;
1770}
1771
1772bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1773{
1774 if ( IsMultiLine() )
1775 {
1776 if ( style.IsDefault() )
1777 {
1778 // nothing to do
1779 return true;
1780 }
1781
1782 gint l = gtk_text_buffer_get_char_count( m_buffer );
1783
1784 wxCHECK_MSG( start >= 0 && end <= l, false,
1785 _T("invalid range in wxTextCtrl::SetStyle") );
1786
1787 GtkTextIter starti, endi;
1788 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1789 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1790
1791 // use the attributes from style which are set in it and fall back
1792 // first to the default style and then to the text control default
1793 // colours for the others
1794 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1795
1796 wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, attr, &starti, &endi );
1797
1798 return true;
1799 }
1800
1801 // else single line
1802 // cannot do this for GTK+'s Entry widget
1803 return false;
1804}
1805
1806void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1807{
1808 gtk_widget_modify_style(m_text, style);
1809}
1810
1811void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1812{
1813 Cut();
1814}
1815
1816void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1817{
1818 Copy();
1819}
1820
1821void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1822{
1823 Paste();
1824}
1825
1826void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1827{
1828 Undo();
1829}
1830
1831void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1832{
1833 Redo();
1834}
1835
1836void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1837{
1838 event.Enable( CanCut() );
1839}
1840
1841void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1842{
1843 event.Enable( CanCopy() );
1844}
1845
1846void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1847{
1848 event.Enable( CanPaste() );
1849}
1850
1851void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1852{
1853 event.Enable( CanUndo() );
1854}
1855
1856void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1857{
1858 event.Enable( CanRedo() );
1859}
1860
1861wxSize wxTextCtrl::DoGetBestSize() const
1862{
1863 // FIXME should be different for multi-line controls...
1864 wxSize ret( wxControl::DoGetBestSize() );
1865 wxSize best(80, ret.y);
1866 CacheBestSize(best);
1867 return best;
1868}
1869
1870// ----------------------------------------------------------------------------
1871// freeze/thaw
1872// ----------------------------------------------------------------------------
1873
1874void wxTextCtrl::Freeze()
1875{
1876 wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1877
1878 if ( HasFlag(wxTE_MULTILINE) )
1879 {
1880 if (m_freezeCount++ == 0)
1881 {
1882 // freeze textview updates and remove buffer
1883 g_signal_connect (m_text, "expose_event",
1884 G_CALLBACK (gtk_text_exposed_callback), this);
1885 g_signal_connect (m_widget, "expose_event",
1886 G_CALLBACK (gtk_text_exposed_callback), this);
1887 gtk_widget_set_sensitive(m_widget, false);
1888 g_object_ref(m_buffer);
1889 GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1890 GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
1891 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1892 // gtk_text_view_set_buffer adds its own reference
1893 g_object_unref(buf_new);
1894 // This mark should be deleted when the buffer is changed,
1895 // but it's not (in GTK+ up to at least 2.10.6).
1896 // Otherwise these anonymous marks start to build up in the buffer,
1897 // and Freeze takes longer and longer each time it is called.
1898 if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1899 gtk_text_buffer_delete_mark(m_buffer, mark);
1900 }
1901 }
1902}
1903
1904void wxTextCtrl::Thaw()
1905{
1906 if ( HasFlag(wxTE_MULTILINE) )
1907 {
1908 wxCHECK_RET(m_freezeCount != 0, _T("Thaw() without matching Freeze()"));
1909
1910 if (--m_freezeCount == 0)
1911 {
1912 // Reattach buffer and thaw textview updates
1913 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1914 g_object_unref(m_buffer);
1915 gtk_widget_set_sensitive(m_widget, true);
1916 g_signal_handlers_disconnect_by_func (m_widget,
1917 (gpointer) gtk_text_exposed_callback, this);
1918 g_signal_handlers_disconnect_by_func (m_text,
1919 (gpointer) gtk_text_exposed_callback, this);
1920 if (m_showPositionOnThaw != NULL)
1921 {
1922 gtk_text_view_scroll_mark_onscreen(
1923 GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1924 m_showPositionOnThaw = NULL;
1925 }
1926 }
1927 }
1928}
1929
1930// ----------------------------------------------------------------------------
1931// wxTextUrlEvent passing if style & wxTE_AUTO_URL
1932// ----------------------------------------------------------------------------
1933
1934// FIXME: when dragging on a link the sample gets an "Unknown event".
1935// This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1936// a buggy sample, or something else
1937void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1938{
1939 event.Skip();
1940 if( !HasFlag(wxTE_AUTO_URL) )
1941 return;
1942
1943 gint x, y;
1944 GtkTextIter start, end;
1945 GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1946 "wxUrl");
1947
1948 gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1949 event.GetX(), event.GetY(), &x, &y);
1950
1951 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1952 if (!gtk_text_iter_has_tag(&end, tag))
1953 {
1954 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1955 GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1956 return;
1957 }
1958
1959 gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1960 GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1961
1962 start = end;
1963 if(!gtk_text_iter_begins_tag(&start, tag))
1964 gtk_text_iter_backward_to_tag_toggle(&start, tag);
1965 if(!gtk_text_iter_ends_tag(&end, tag))
1966 gtk_text_iter_forward_to_tag_toggle(&end, tag);
1967
1968 // Native context menu is probably not desired on an URL.
1969 // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1970 if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1971 event.Skip(false);
1972
1973 wxTextUrlEvent url_event(m_windowId, event,
1974 gtk_text_iter_get_offset(&start),
1975 gtk_text_iter_get_offset(&end));
1976
1977 InitCommandEvent(url_event);
1978 // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1979 //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1980 GetEventHandler()->ProcessEvent(url_event);
1981}
1982
1983bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1984{
1985 bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1986
1987 // GtkTextView starts a drag operation when left mouse button is pressed
1988 // and ends it when it is released and if it doesn't get the release event
1989 // the next click on a control results in an assertion failure inside
1990 // gtk_text_view_start_selection_drag() which simply *kills* the program
1991 // without anything we can do about it, so always let GTK+ have this event
1992 return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1993}
1994
1995// static
1996wxVisualAttributes
1997wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1998{
1999 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2000}
wxWidgets (Impactor)