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[wxWidgets.git] / src / gtk / textctrl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: textctrl.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11 #pragma implementation "textctrl.h"
12 #endif
13
14 // For compilers that support precompilation, includes "wx.h".
15 #include "wx/wxprec.h"
16
17 #include "wx/textctrl.h"
18 #include "wx/utils.h"
19 #include "wx/intl.h"
20 #include "wx/log.h"
21 #include "wx/settings.h"
22 #include "wx/panel.h"
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 #include "wx/math.h"
30
31 #include "wx/gtk/private.h"
32 #include <gdk/gdkkeysyms.h>
33
34 //-----------------------------------------------------------------------------
35 // idle system
36 //-----------------------------------------------------------------------------
37
38 extern void wxapp_install_idle_handler();
39 extern bool g_isIdle;
40
41 //-----------------------------------------------------------------------------
42 // data
43 //-----------------------------------------------------------------------------
44
45 extern bool g_blockEventsOnDrag;
46 extern wxCursor g_globalCursor;
47 extern wxWindowGTK *g_delayedFocus;
48
49 // ----------------------------------------------------------------------------
50 // helpers
51 // ----------------------------------------------------------------------------
52
53 #ifdef __WXGTK20__
54 static void wxGtkTextApplyTagsFromAttr(GtkTextBuffer *text_buffer,
55 const wxTextAttr& attr,
56 GtkTextIter *start,
57 GtkTextIter *end)
58 {
59 static gchar buf[1024];
60 GtkTextTag *tag;
61
62 if (attr.HasFont())
63 {
64 char *font_string;
65 PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
66 font_string = pango_font_description_to_string(font_description);
67 g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string);
68 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
69 buf );
70 if (!tag)
71 tag = gtk_text_buffer_create_tag( text_buffer, buf,
72 "font-desc", font_description,
73 NULL );
74 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
75 g_free (font_string);
76 }
77
78 if (attr.HasTextColour())
79 {
80 GdkColor *colFg = attr.GetTextColour().GetColor();
81 g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
82 colFg->red, colFg->green, colFg->blue);
83 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
84 buf );
85 if (!tag)
86 tag = gtk_text_buffer_create_tag( text_buffer, buf,
87 "foreground-gdk", colFg, NULL );
88 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
89 }
90
91 if (attr.HasBackgroundColour())
92 {
93 GdkColor *colBg = attr.GetBackgroundColour().GetColor();
94 g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
95 colBg->red, colBg->green, colBg->blue);
96 tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
97 buf );
98 if (!tag)
99 tag = gtk_text_buffer_create_tag( text_buffer, buf,
100 "background-gdk", colBg, NULL );
101 gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
102 }
103 }
104
105 static void wxGtkTextInsert(GtkWidget *text,
106 GtkTextBuffer *text_buffer,
107 const wxTextAttr& attr,
108 wxCharBuffer buffer)
109
110 {
111 gint start_offset;
112 GtkTextIter iter, start;
113
114 gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
115 gtk_text_buffer_get_insert (text_buffer) );
116 start_offset = gtk_text_iter_get_offset (&iter);
117 gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
118
119 gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
120
121 wxGtkTextApplyTagsFromAttr(text_buffer, attr, &start, &iter);
122 }
123 #else
124 static void wxGtkTextInsert(GtkWidget *text,
125 const wxTextAttr& attr,
126 const char *txt,
127 size_t len)
128 {
129 GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont()
130 : NULL;
131
132 GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
133 : NULL;
134
135 GdkColor *colBg = attr.HasBackgroundColour()
136 ? attr.GetBackgroundColour().GetColor()
137 : NULL;
138
139 gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len );
140 }
141 #endif // GTK 1.x
142
143 // ----------------------------------------------------------------------------
144 // "insert_text" for GtkEntry
145 // ----------------------------------------------------------------------------
146
147 static void
148 gtk_insert_text_callback(GtkEditable *editable,
149 const gchar *new_text,
150 gint new_text_length,
151 gint *position,
152 wxTextCtrl *win)
153 {
154 if (g_isIdle)
155 wxapp_install_idle_handler();
156
157 // we should only be called if we have a max len limit at all
158 GtkEntry *entry = GTK_ENTRY (editable);
159
160 wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
161
162 // check that we don't overflow the max length limit
163 //
164 // FIXME: this doesn't work when we paste a string which is going to be
165 // truncated
166 if ( entry->text_length == entry->text_max_length )
167 {
168 // we don't need to run the base class version at all
169 gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
170
171 // remember that the next changed signal is to be ignored to avoid
172 // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
173 win->IgnoreNextTextUpdate();
174
175 // and generate the correct one ourselves
176 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
177 event.SetEventObject(win);
178 event.SetString(win->GetValue());
179 win->GetEventHandler()->ProcessEvent( event );
180 }
181 }
182
183 //-----------------------------------------------------------------------------
184 // "changed"
185 //-----------------------------------------------------------------------------
186
187 static void
188 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
189 {
190 if ( win->IgnoreTextUpdate() )
191 return;
192
193 if (!win->m_hasVMT) return;
194
195 if (g_isIdle)
196 wxapp_install_idle_handler();
197
198 win->SetModified();
199 #ifndef __WXGTK20__
200 win->UpdateFontIfNeeded();
201 #endif // !__WXGTK20__
202
203 wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
204 event.SetEventObject( win );
205 win->GetEventHandler()->ProcessEvent( event );
206 }
207
208 //-----------------------------------------------------------------------------
209 // "expose_event" from scrolled window and textview
210 //-----------------------------------------------------------------------------
211
212 #ifdef __WXGTK20__
213 static gboolean
214 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
215 {
216 return TRUE;
217 }
218 #endif
219
220 //-----------------------------------------------------------------------------
221 // "changed" from vertical scrollbar
222 //-----------------------------------------------------------------------------
223
224 #ifndef __WXGTK20__
225 static void
226 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
227 {
228 if (!win->m_hasVMT) return;
229
230 if (g_isIdle)
231 wxapp_install_idle_handler();
232
233 win->CalculateScrollbar();
234 }
235 #endif
236
237 // ----------------------------------------------------------------------------
238 // redraw callback for multiline text
239 // ----------------------------------------------------------------------------
240
241 #ifndef __WXGTK20__
242
243 // redrawing a GtkText from inside a wxYield() call results in crashes (the
244 // text sample shows it in its "Add lines" command which shows wxProgressDialog
245 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
246 // don't do anything if we're inside wxYield()
247
248 extern bool wxIsInsideYield;
249
250 extern "C" {
251 typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
252 }
253
254 static GtkDrawCallback gs_gtk_text_draw = NULL;
255
256 extern "C"
257 void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
258 {
259 if ( !wxIsInsideYield )
260 {
261 wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
262 _T("infinite recursion in wxgtk_text_draw aborted") );
263
264 gs_gtk_text_draw(widget, rect);
265 }
266 }
267
268 #endif // __WXGTK20__
269
270 //-----------------------------------------------------------------------------
271 // wxTextCtrl
272 //-----------------------------------------------------------------------------
273
274 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
275
276 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
277 EVT_CHAR(wxTextCtrl::OnChar)
278
279 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
280 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
281 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
282 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
283 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
284
285 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
286 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
287 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
288 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
289 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
290 END_EVENT_TABLE()
291
292 void wxTextCtrl::Init()
293 {
294 m_ignoreNextUpdate =
295 m_modified = false;
296 SetUpdateFont(false);
297 m_text =
298 m_vScrollbar = (GtkWidget *)NULL;
299 #ifdef __WXGTK20__
300 m_frozenness = 0;
301 #endif
302 }
303
304 wxTextCtrl::wxTextCtrl( wxWindow *parent,
305 wxWindowID id,
306 const wxString &value,
307 const wxPoint &pos,
308 const wxSize &size,
309 long style,
310 const wxValidator& validator,
311 const wxString &name )
312 {
313 Init();
314
315 Create( parent, id, value, pos, size, style, validator, name );
316 }
317
318 bool wxTextCtrl::Create( wxWindow *parent,
319 wxWindowID id,
320 const wxString &value,
321 const wxPoint &pos,
322 const wxSize &size,
323 long style,
324 const wxValidator& validator,
325 const wxString &name )
326 {
327 m_needParent = true;
328 m_acceptsFocus = true;
329
330 if (!PreCreation( parent, pos, size ) ||
331 !CreateBase( parent, id, pos, size, style, validator, name ))
332 {
333 wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
334 return false;
335 }
336
337
338 m_vScrollbarVisible = false;
339
340 bool multi_line = (style & wxTE_MULTILINE) != 0;
341
342 if (multi_line)
343 {
344 #ifdef __WXGTK20__
345 // Create view
346 m_text = gtk_text_view_new();
347
348 m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
349
350 // create scrolled window
351 m_widget = gtk_scrolled_window_new( NULL, NULL );
352 gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
353 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
354
355 // Insert view into scrolled window
356 gtk_container_add( GTK_CONTAINER(m_widget), m_text );
357
358 // Global settings which can be overridden by tags, I guess.
359 if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
360 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
361 else
362 gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
363
364 if (!HasFlag(wxNO_BORDER))
365 gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
366
367 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
368 #else
369 // create our control ...
370 m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
371
372 // ... and put into the upper left hand corner of the table
373 bool bHasHScrollbar = false;
374 m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
375 GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
376 gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
377 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
378 (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
379 0, 0);
380
381 // always wrap words
382 gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
383
384 // finally, put the vertical scrollbar in the upper right corner
385 m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
386 GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
387 gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
388 GTK_FILL,
389 (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
390 0, 0);
391 #endif
392 }
393 else
394 {
395 // a single-line text control: no need for scrollbars
396 m_widget =
397 m_text = gtk_entry_new();
398
399 #ifdef __WXGTK20__
400 if (style & wxNO_BORDER)
401 g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
402 #endif
403 }
404
405 m_parent->DoAddChild( this );
406
407 m_focusWidget = m_text;
408
409 PostCreation(size);
410
411 if (multi_line)
412 gtk_widget_show(m_text);
413
414 #ifndef __WXGTK20__
415 if (multi_line)
416 {
417 gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
418 (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
419
420 // only initialize gs_gtk_text_draw once, starting from the next the
421 // klass::draw will already be wxgtk_text_draw
422 if ( !gs_gtk_text_draw )
423 {
424 GtkDrawCallback&
425 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
426
427 gs_gtk_text_draw = draw;
428
429 draw = wxgtk_text_draw;
430 }
431 }
432 #endif // GTK+ 1.x
433
434 if (!value.empty())
435 {
436 #ifdef __WXGTK20__
437 SetValue( value );
438 #else
439
440 #if !GTK_CHECK_VERSION(1, 2, 0)
441 // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
442 // gtk_editable_insert_text()
443 gtk_widget_realize(m_text);
444 #endif // GTK 1.0
445
446 gint tmp = 0;
447 #if wxUSE_UNICODE
448 wxWX2MBbuf val = value.mbc_str();
449 gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
450 #else
451 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
452 #endif
453
454 if (multi_line)
455 {
456 // Bring editable's cursor uptodate. Bug in GTK.
457 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
458 }
459
460 #endif
461 }
462
463 if (style & wxTE_PASSWORD)
464 {
465 if (!multi_line)
466 gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
467 }
468
469 if (style & wxTE_READONLY)
470 {
471 if (!multi_line)
472 gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
473 #ifdef __WXGTK20__
474 else
475 gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
476 #else
477 }
478 else
479 {
480 if (multi_line)
481 gtk_text_set_editable( GTK_TEXT(m_text), 1 );
482 #endif
483 }
484
485 #ifdef __WXGTK20__
486 if (multi_line)
487 {
488 if (style & wxTE_RIGHT)
489 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
490 else if (style & wxTE_CENTRE)
491 gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
492 // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
493 }
494 else
495 {
496 #ifdef __WXGTK24__
497 // gtk_entry_set_alignment was introduced in gtk+-2.3.5
498 if (!gtk_check_version(2,4,0))
499 {
500 if (style & wxTE_RIGHT)
501 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
502 else if (style & wxTE_CENTRE)
503 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
504 }
505 #endif
506 }
507 #endif // __WXGTK20__
508
509 // We want to be notified about text changes.
510 #ifdef __WXGTK20__
511 if (multi_line)
512 {
513 g_signal_connect( G_OBJECT(m_buffer), "changed",
514 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
515 }
516 else
517 #endif
518
519 {
520 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
521 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
522 }
523
524 m_cursor = wxCursor( wxCURSOR_IBEAM );
525
526 wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
527 SetDefaultStyle( attrDef );
528
529 return true;
530 }
531
532
533 void wxTextCtrl::CalculateScrollbar()
534 {
535 #ifndef __WXGTK20__
536 if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
537
538 GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
539
540 if (adj->upper - adj->page_size < 0.8)
541 {
542 if (m_vScrollbarVisible)
543 {
544 gtk_widget_hide( m_vScrollbar );
545 m_vScrollbarVisible = false;
546 }
547 }
548 else
549 {
550 if (!m_vScrollbarVisible)
551 {
552 gtk_widget_show( m_vScrollbar );
553 m_vScrollbarVisible = true;
554 }
555 }
556 #endif
557 }
558
559 wxString wxTextCtrl::GetValue() const
560 {
561 wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
562
563 wxString tmp;
564 if (m_windowStyle & wxTE_MULTILINE)
565 {
566 #ifdef __WXGTK20__
567 GtkTextIter start;
568 gtk_text_buffer_get_start_iter( m_buffer, &start );
569 GtkTextIter end;
570 gtk_text_buffer_get_end_iter( m_buffer, &end );
571 gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
572
573 #if wxUSE_UNICODE
574 wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
575 #else
576 wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
577 #endif
578 if ( buffer )
579 tmp = buffer;
580
581 g_free( text );
582 #else
583 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
584 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
585 tmp = text;
586 g_free( text );
587 #endif
588 }
589 else
590 {
591 tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
592 }
593
594 return tmp;
595 }
596
597 void wxTextCtrl::SetValue( const wxString &value )
598 {
599 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
600
601 if (m_windowStyle & wxTE_MULTILINE)
602 {
603 #ifdef __WXGTK20__
604
605 #if wxUSE_UNICODE
606 wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
607 #else
608 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
609 #endif
610 if (gtk_text_buffer_get_char_count(m_buffer) != 0)
611 IgnoreNextTextUpdate();
612
613 gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
614
615 #else
616 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
617 gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
618 len = 0;
619 gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
620 #endif
621 }
622 else
623 {
624 gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
625 }
626
627 // GRG, Jun/2000: Changed this after a lot of discussion in
628 // the lists. wxWidgets 2.2 will have a set of flags to
629 // customize this behaviour.
630 SetInsertionPoint(0);
631
632 m_modified = false;
633 }
634
635 void wxTextCtrl::WriteText( const wxString &text )
636 {
637 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
638
639 if ( text.empty() )
640 return;
641
642 // gtk_text_changed_callback() will set m_modified to true but m_modified
643 // shouldn't be changed by the program writing to the text control itself,
644 // so save the old value and restore when we're done
645 bool oldModified = m_modified;
646
647 if ( m_windowStyle & wxTE_MULTILINE )
648 {
649 #ifdef __WXGTK20__
650
651 #if wxUSE_UNICODE
652 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
653 #else
654 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
655 #endif
656 if ( !buffer )
657 {
658 // what else can we do? at least don't crash...
659 return;
660 }
661
662 // TODO: Call whatever is needed to delete the selection.
663 wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
664
665 GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
666 // Scroll to cursor, but only if scrollbar thumb is at the very bottom
667 if ( adj->value == adj->upper - adj->page_size )
668 {
669 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
670 gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
671 }
672 #else // GTK 1.x
673 // After cursor movements, gtk_text_get_point() is wrong by one.
674 gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
675
676 // always use m_defaultStyle, even if it is empty as otherwise
677 // resetting the style and appending some more text wouldn't work: if
678 // we don't specify the style explicitly, the old style would be used
679 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
680 wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
681
682 // we called wxGtkTextInsert with correct font, no need to do anything
683 // in UpdateFontIfNeeded() any longer
684 if ( !text.empty() )
685 {
686 SetUpdateFont(false);
687 }
688
689 // Bring editable's cursor back uptodate.
690 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
691 #endif // GTK 1.x/2.0
692 }
693 else // single line
694 {
695 // First remove the selection if there is one
696 gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
697
698 // This moves the cursor pos to behind the inserted text.
699 gint len = GET_EDITABLE_POS(m_text);
700
701 #ifdef __WXGTK20__
702
703 #if wxUSE_UNICODE
704 wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
705 #else
706 wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
707 #endif
708 gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
709
710 #else
711 gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
712 #endif
713
714 // Bring entry's cursor uptodate.
715 gtk_entry_set_position( GTK_ENTRY(m_text), len );
716 }
717
718 m_modified = oldModified;
719 }
720
721 void wxTextCtrl::AppendText( const wxString &text )
722 {
723 SetInsertionPointEnd();
724 WriteText( text );
725 }
726
727 wxString wxTextCtrl::GetLineText( long lineNo ) const
728 {
729 if (m_windowStyle & wxTE_MULTILINE)
730 {
731 #ifndef __WXGTK20__
732 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
733 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
734
735 if (text)
736 {
737 wxString buf(wxT(""));
738 long i;
739 int currentLine = 0;
740 for (i = 0; currentLine != lineNo && text[i]; i++ )
741 if (text[i] == '\n')
742 currentLine++;
743 // Now get the text
744 int j;
745 for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
746 buf += text[i];
747
748 g_free( text );
749 return buf;
750 }
751 else
752 {
753 return wxEmptyString;
754 }
755 #else
756 GtkTextIter line;
757 gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
758 GtkTextIter end;
759 gtk_text_buffer_get_end_iter(m_buffer,&end );
760 gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
761 wxString result(wxGTK_CONV_BACK(text));
762 g_free(text);
763 return result.BeforeFirst(wxT('\n'));
764 #endif
765 }
766 else
767 {
768 if (lineNo == 0) return GetValue();
769 return wxEmptyString;
770 }
771 }
772
773 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
774 {
775 /* If you implement this, don't forget to update the documentation!
776 * (file docs/latex/wx/text.tex) */
777 wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
778 }
779
780 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
781 {
782 if ( m_windowStyle & wxTE_MULTILINE )
783 {
784 wxString text = GetValue();
785
786 // cast to prevent warning. But pos really should've been unsigned.
787 if( (unsigned long)pos > text.Len() )
788 return false;
789
790 *x=0; // First Col
791 *y=0; // First Line
792
793 const wxChar* stop = text.c_str() + pos;
794 for ( const wxChar *p = text.c_str(); p < stop; p++ )
795 {
796 if (*p == wxT('\n'))
797 {
798 (*y)++;
799 *x=0;
800 }
801 else
802 (*x)++;
803 }
804 }
805 else // single line control
806 {
807 if ( pos <= GTK_ENTRY(m_text)->text_length )
808 {
809 *y = 0;
810 *x = pos;
811 }
812 else
813 {
814 // index out of bounds
815 return false;
816 }
817 }
818
819 return true;
820 }
821
822 long wxTextCtrl::XYToPosition(long x, long y ) const
823 {
824 if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
825
826 long pos=0;
827 for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
828
829 pos += x;
830 return pos;
831 }
832
833 int wxTextCtrl::GetLineLength(long lineNo) const
834 {
835 wxString str = GetLineText (lineNo);
836 return (int) str.Length();
837 }
838
839 int wxTextCtrl::GetNumberOfLines() const
840 {
841 if (m_windowStyle & wxTE_MULTILINE)
842 {
843 #ifdef __WXGTK20__
844 return gtk_text_buffer_get_line_count( m_buffer );
845 #else
846 gint len = gtk_text_get_length( GTK_TEXT(m_text) );
847 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
848
849 if (text)
850 {
851 int currentLine = 0;
852 for (int i = 0; i < len; i++ )
853 {
854 if (text[i] == '\n')
855 currentLine++;
856 }
857 g_free( text );
858
859 // currentLine is 0 based, add 1 to get number of lines
860 return currentLine + 1;
861 }
862 else
863 {
864 return 0;
865 }
866 #endif
867 }
868 else
869 {
870 return 1;
871 }
872 }
873
874 void wxTextCtrl::SetInsertionPoint( long pos )
875 {
876 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
877
878 if ( IsMultiLine() )
879 {
880 #ifdef __WXGTK20__
881 GtkTextIter iter;
882 gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
883 gtk_text_buffer_place_cursor( m_buffer, &iter );
884 gtk_text_view_scroll_mark_onscreen
885 (
886 GTK_TEXT_VIEW(m_text),
887 gtk_text_buffer_get_insert( m_buffer )
888 );
889 #else // GTK+ 1.x
890 gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
891 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
892
893 /* we fake a set_point by inserting and deleting. as the user
894 isn't supposed to get to know about this non-sense, we
895 disconnect so that no events are sent to the user program. */
896
897 gint tmp = (gint)pos;
898 gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
899 gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
900
901 gtk_signal_connect( GTK_OBJECT(m_text), "changed",
902 GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
903
904 // bring editable's cursor uptodate. Bug in GTK.
905 SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
906 #endif // GTK+ 2/1
907 }
908 else
909 {
910 gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
911
912 // Bring editable's cursor uptodate. Bug in GTK.
913 SET_EDITABLE_POS(m_text, (guint32)pos);
914 }
915 }
916
917 void wxTextCtrl::SetInsertionPointEnd()
918 {
919 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
920
921 if (m_windowStyle & wxTE_MULTILINE)
922 {
923 #ifdef __WXGTK20__
924 GtkTextIter end;
925 gtk_text_buffer_get_end_iter( m_buffer, &end );
926 gtk_text_buffer_place_cursor( m_buffer, &end );
927 #else
928 SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
929 #endif
930 }
931 else
932 {
933 gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
934 }
935 }
936
937 void wxTextCtrl::SetEditable( bool editable )
938 {
939 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
940
941 if (m_windowStyle & wxTE_MULTILINE)
942 {
943 #ifdef __WXGTK20__
944 gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
945 #else
946 gtk_text_set_editable( GTK_TEXT(m_text), editable );
947 #endif
948 }
949 else
950 {
951 gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
952 }
953 }
954
955 bool wxTextCtrl::Enable( bool enable )
956 {
957 if (!wxWindowBase::Enable(enable))
958 {
959 // nothing to do
960 return false;
961 }
962
963 if (m_windowStyle & wxTE_MULTILINE)
964 {
965 #ifdef __WXGTK20__
966 SetEditable( enable );
967 #else
968 gtk_text_set_editable( GTK_TEXT(m_text), enable );
969 OnParentEnable(enable);
970 #endif
971 }
972 else
973 {
974 gtk_widget_set_sensitive( m_text, enable );
975 }
976
977 return true;
978 }
979
980 // wxGTK-specific: called recursively by Enable,
981 // to give widgets an oppprtunity to correct their colours after they
982 // have been changed by Enable
983 void wxTextCtrl::OnParentEnable( bool enable )
984 {
985 // If we have a custom background colour, we use this colour in both
986 // disabled and enabled mode, or we end up with a different colour under the
987 // text.
988 wxColour oldColour = GetBackgroundColour();
989 if (oldColour.Ok())
990 {
991 // Need to set twice or it'll optimize the useful stuff out
992 if (oldColour == * wxWHITE)
993 SetBackgroundColour(*wxBLACK);
994 else
995 SetBackgroundColour(*wxWHITE);
996 SetBackgroundColour(oldColour);
997 }
998 }
999
1000 void wxTextCtrl::MarkDirty()
1001 {
1002 m_modified = true;
1003 }
1004
1005 void wxTextCtrl::DiscardEdits()
1006 {
1007 m_modified = false;
1008 }
1009
1010 // ----------------------------------------------------------------------------
1011 // max text length support
1012 // ----------------------------------------------------------------------------
1013
1014 void wxTextCtrl::IgnoreNextTextUpdate()
1015 {
1016 m_ignoreNextUpdate = true;
1017 }
1018
1019 bool wxTextCtrl::IgnoreTextUpdate()
1020 {
1021 if ( m_ignoreNextUpdate )
1022 {
1023 m_ignoreNextUpdate = false;
1024
1025 return true;
1026 }
1027
1028 return false;
1029 }
1030
1031 void wxTextCtrl::SetMaxLength(unsigned long len)
1032 {
1033 if ( !HasFlag(wxTE_MULTILINE) )
1034 {
1035 gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1036
1037 // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1038 // we had tried to enter more text than allowed by max text length and
1039 // the text wasn't really changed
1040 //
1041 // to detect this and generate TEXT_MAXLEN event instead of
1042 // TEXT_CHANGED one in this case we also catch "insert_text" signal
1043 //
1044 // when max len is set to 0 we disconnect our handler as it means that
1045 // we shouldn't check anything any more
1046 if ( len )
1047 {
1048 gtk_signal_connect( GTK_OBJECT(m_text),
1049 "insert_text",
1050 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1051 (gpointer)this);
1052 }
1053 else // no checking
1054 {
1055 gtk_signal_disconnect_by_func
1056 (
1057 GTK_OBJECT(m_text),
1058 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1059 (gpointer)this
1060 );
1061 }
1062 }
1063 }
1064
1065 void wxTextCtrl::SetSelection( long from, long to )
1066 {
1067 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1068
1069 if (from == -1 && to == -1)
1070 {
1071 from = 0;
1072 to = GetValue().Length();
1073 }
1074
1075 #ifndef __WXGTK20__
1076 if ( (m_windowStyle & wxTE_MULTILINE) &&
1077 !GTK_TEXT(m_text)->line_start_cache )
1078 {
1079 // tell the programmer that it didn't work
1080 wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1081 return;
1082 }
1083 #endif
1084
1085 if (m_windowStyle & wxTE_MULTILINE)
1086 {
1087 #ifdef __WXGTK20__
1088 GtkTextIter fromi, toi;
1089 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1090 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1091
1092 gtk_text_buffer_place_cursor( m_buffer, &toi );
1093 gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1094 #else
1095 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1096 #endif
1097 }
1098 else
1099 {
1100 gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1101 }
1102 }
1103
1104 void wxTextCtrl::ShowPosition( long pos )
1105 {
1106 if (m_windowStyle & wxTE_MULTILINE)
1107 {
1108 #ifdef __WXGTK20__
1109 GtkTextIter iter;
1110 gtk_text_buffer_get_start_iter( m_buffer, &iter );
1111 gtk_text_iter_set_offset( &iter, pos );
1112 GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1113 gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1114 #else // GTK 1.x
1115 GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1116 float totalLines = (float) GetNumberOfLines();
1117 long posX;
1118 long posY;
1119 PositionToXY(pos, &posX, &posY);
1120 float posLine = (float) posY;
1121 float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1122 gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1123 #endif // GTK 1.x/2.x
1124 }
1125 }
1126
1127 #ifdef __WXGTK20__
1128
1129 wxTextCtrlHitTestResult
1130 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1131 {
1132 if ( !IsMultiLine() )
1133 {
1134 // not supported
1135 return wxTE_HT_UNKNOWN;
1136 }
1137
1138 int x, y;
1139 gtk_text_view_window_to_buffer_coords
1140 (
1141 GTK_TEXT_VIEW(m_text),
1142 GTK_TEXT_WINDOW_TEXT,
1143 pt.x, pt.y,
1144 &x, &y
1145 );
1146
1147 GtkTextIter iter;
1148 gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1149 if ( pos )
1150 *pos = gtk_text_iter_get_offset(&iter);
1151
1152 return wxTE_HT_ON_TEXT;
1153 }
1154
1155 #endif // __WXGTK20__
1156
1157 long wxTextCtrl::GetInsertionPoint() const
1158 {
1159 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1160
1161 #ifdef __WXGTK20__
1162 if (m_windowStyle & wxTE_MULTILINE)
1163 {
1164 // There is no direct accessor for the cursor, but
1165 // internally, the cursor is the "mark" called
1166 // "insert" in the text view's btree structure.
1167
1168 GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1169 GtkTextIter cursor;
1170 gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1171
1172 return gtk_text_iter_get_offset( &cursor );
1173 }
1174 else
1175 #endif
1176 {
1177 return (long) GET_EDITABLE_POS(m_text);
1178 }
1179 }
1180
1181 wxTextPos wxTextCtrl::GetLastPosition() const
1182 {
1183 wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1184
1185 int pos = 0;
1186
1187 if (m_windowStyle & wxTE_MULTILINE)
1188 {
1189 #ifdef __WXGTK20__
1190 GtkTextIter end;
1191 gtk_text_buffer_get_end_iter( m_buffer, &end );
1192
1193 pos = gtk_text_iter_get_offset( &end );
1194 #else
1195 pos = gtk_text_get_length( GTK_TEXT(m_text) );
1196 #endif
1197 }
1198 else
1199 {
1200 pos = GTK_ENTRY(m_text)->text_length;
1201 }
1202
1203 return (long)pos;
1204 }
1205
1206 void wxTextCtrl::Remove( long from, long to )
1207 {
1208 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1209
1210 #ifdef __WXGTK20__
1211 if (m_windowStyle & wxTE_MULTILINE)
1212 {
1213 GtkTextIter fromi, toi;
1214 gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1215 gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1216
1217 gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1218 }
1219 else // single line
1220 #endif
1221 gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1222 }
1223
1224 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1225 {
1226 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1227
1228 Remove( from, to );
1229
1230 if (!value.empty())
1231 {
1232 #ifdef __WXGTK20__
1233 SetInsertionPoint( from );
1234 WriteText( value );
1235 #else // GTK 1.x
1236 gint pos = (gint)from;
1237 #if wxUSE_UNICODE
1238 wxWX2MBbuf buf = value.mbc_str();
1239 gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1240 #else
1241 gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1242 #endif // wxUSE_UNICODE
1243 #endif // GTK 1.x/2.x
1244 }
1245 }
1246
1247 void wxTextCtrl::Cut()
1248 {
1249 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1250
1251 #ifdef __WXGTK20__
1252 if (m_windowStyle & wxTE_MULTILINE)
1253 g_signal_emit_by_name(m_text, "cut-clipboard");
1254 else
1255 #endif
1256 gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1257 }
1258
1259 void wxTextCtrl::Copy()
1260 {
1261 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1262
1263 #ifdef __WXGTK20__
1264 if (m_windowStyle & wxTE_MULTILINE)
1265 g_signal_emit_by_name(m_text, "copy-clipboard");
1266 else
1267 #endif
1268 gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1269 }
1270
1271 void wxTextCtrl::Paste()
1272 {
1273 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1274
1275 #ifdef __WXGTK20__
1276 if (m_windowStyle & wxTE_MULTILINE)
1277 g_signal_emit_by_name(m_text, "paste-clipboard");
1278 else
1279 #endif
1280 gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1281 }
1282
1283 // Undo/redo
1284 void wxTextCtrl::Undo()
1285 {
1286 // TODO
1287 wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1288 }
1289
1290 void wxTextCtrl::Redo()
1291 {
1292 // TODO
1293 wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1294 }
1295
1296 bool wxTextCtrl::CanUndo() const
1297 {
1298 // TODO
1299 //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1300 return false;
1301 }
1302
1303 bool wxTextCtrl::CanRedo() const
1304 {
1305 // TODO
1306 //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1307 return false;
1308 }
1309
1310 // If the return values from and to are the same, there is no
1311 // selection.
1312 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1313 {
1314 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1315
1316 gint from = -1;
1317 gint to = -1;
1318 bool haveSelection = false;
1319
1320 #ifdef __WXGTK20__
1321 if (m_windowStyle & wxTE_MULTILINE)
1322 {
1323 GtkTextIter ifrom, ito;
1324 if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1325 {
1326 haveSelection = true;
1327 from = gtk_text_iter_get_offset(&ifrom);
1328 to = gtk_text_iter_get_offset(&ito);
1329 }
1330 }
1331 else // not multi-line
1332 {
1333 if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1334 &from, &to) )
1335 {
1336 haveSelection = true;
1337 }
1338 }
1339 #else // not GTK2
1340 if ( (GTK_EDITABLE(m_text)->has_selection) )
1341 {
1342 haveSelection = true;
1343 from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1344 to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1345 }
1346 #endif
1347
1348 if (! haveSelection )
1349 from = to = GetInsertionPoint();
1350
1351 if ( from > to )
1352 {
1353 // exchange them to be compatible with wxMSW
1354 gint tmp = from;
1355 from = to;
1356 to = tmp;
1357 }
1358
1359 if ( fromOut )
1360 *fromOut = from;
1361 if ( toOut )
1362 *toOut = to;
1363 }
1364
1365
1366 bool wxTextCtrl::IsEditable() const
1367 {
1368 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1369
1370 #ifdef __WXGTK20__
1371 if (m_windowStyle & wxTE_MULTILINE)
1372 {
1373 return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1374 }
1375 else
1376 {
1377 return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1378 }
1379 #else
1380 return GTK_EDITABLE(m_text)->editable;
1381 #endif
1382 }
1383
1384 bool wxTextCtrl::IsModified() const
1385 {
1386 return m_modified;
1387 }
1388
1389 void wxTextCtrl::Clear()
1390 {
1391 SetValue( wxT("") );
1392 }
1393
1394 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1395 {
1396 wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1397
1398 if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1399 {
1400 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1401 event.SetEventObject(this);
1402 event.SetString(GetValue());
1403 if (GetEventHandler()->ProcessEvent(event)) return;
1404 }
1405
1406 if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1407 {
1408 // This will invoke the dialog default action, such
1409 // as the clicking the default button.
1410
1411 wxWindow *top_frame = m_parent;
1412 while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1413 top_frame = top_frame->GetParent();
1414
1415 if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1416 {
1417 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1418
1419 if (window->default_widget)
1420 {
1421 gtk_widget_activate (window->default_widget);
1422 return;
1423 }
1424 }
1425 }
1426
1427 key_event.Skip();
1428 }
1429
1430 GtkWidget* wxTextCtrl::GetConnectWidget()
1431 {
1432 return GTK_WIDGET(m_text);
1433 }
1434
1435 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1436 {
1437 if (m_windowStyle & wxTE_MULTILINE)
1438 {
1439 #ifdef __WXGTK20__
1440 return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT ); // pure guesswork
1441 #else
1442 return (window == GTK_TEXT(m_text)->text_area);
1443 #endif
1444 }
1445 else
1446 {
1447 return (window == GTK_ENTRY(m_text)->text_area);
1448 }
1449 }
1450
1451 // the font will change for subsequent text insertiongs
1452 bool wxTextCtrl::SetFont( const wxFont &font )
1453 {
1454 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1455
1456 if ( !wxTextCtrlBase::SetFont(font) )
1457 {
1458 // font didn't change, nothing to do
1459 return false;
1460 }
1461
1462 if ( m_windowStyle & wxTE_MULTILINE )
1463 {
1464 SetUpdateFont(true);
1465
1466 m_defaultStyle.SetFont(font);
1467
1468 ChangeFontGlobally();
1469 }
1470
1471 return true;
1472 }
1473
1474 void wxTextCtrl::ChangeFontGlobally()
1475 {
1476 // this method is very inefficient and hence should be called as rarely as
1477 // possible!
1478 //
1479 // TODO: it can be implemented much more efficiently for GTK2
1480 #ifndef __WXGTK20__
1481 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1482
1483 _T("shouldn't be called for single line controls") );
1484 #else
1485 wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1486 _T("shouldn't be called for single line controls") );
1487 #endif
1488
1489 wxString value = GetValue();
1490 if ( !value.empty() )
1491 {
1492 SetUpdateFont(false);
1493
1494 Clear();
1495 AppendText(value);
1496 }
1497 }
1498
1499 #ifndef __WXGTK20__
1500
1501 void wxTextCtrl::UpdateFontIfNeeded()
1502 {
1503 if ( m_updateFont )
1504 ChangeFontGlobally();
1505 }
1506
1507 #endif // GTK+ 1.x
1508
1509 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1510 {
1511 if ( !wxControl::SetForegroundColour(colour) )
1512 return false;
1513
1514 // update default fg colour too
1515 m_defaultStyle.SetTextColour(colour);
1516
1517 return true;
1518 }
1519
1520 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1521 {
1522 wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1523
1524 if ( !wxControl::SetBackgroundColour( colour ) )
1525 return false;
1526
1527 #ifndef __WXGTK20__
1528 if (!m_widget->window)
1529 return false;
1530 #endif
1531
1532 if (!m_backgroundColour.Ok())
1533 return false;
1534
1535 if (m_windowStyle & wxTE_MULTILINE)
1536 {
1537 #ifndef __WXGTK20__
1538 GdkWindow *window = GTK_TEXT(m_text)->text_area;
1539 if (!window)
1540 return false;
1541 m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1542 gdk_window_set_background( window, m_backgroundColour.GetColor() );
1543 gdk_window_clear( window );
1544 #endif
1545 }
1546
1547 // change active background color too
1548 m_defaultStyle.SetBackgroundColour( colour );
1549
1550 return true;
1551 }
1552
1553 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1554 {
1555 if ( m_windowStyle & wxTE_MULTILINE )
1556 {
1557 if ( style.IsDefault() )
1558 {
1559 // nothing to do
1560 return true;
1561 }
1562 #ifdef __WXGTK20__
1563 gint l = gtk_text_buffer_get_char_count( m_buffer );
1564
1565 wxCHECK_MSG( start >= 0 && end <= l, false,
1566 _T("invalid range in wxTextCtrl::SetStyle") );
1567
1568 GtkTextIter starti, endi;
1569 gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1570 gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1571
1572 // use the attributes from style which are set in it and fall back
1573 // first to the default style and then to the text control default
1574 // colours for the others
1575 wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1576
1577 wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1578
1579 return true;
1580 #else
1581 // VERY dirty way to do that - removes the required text and re-adds it
1582 // with styling (FIXME)
1583
1584 gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1585
1586 wxCHECK_MSG( start >= 0 && end <= l, false,
1587 _T("invalid range in wxTextCtrl::SetStyle") );
1588
1589 gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1590 char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1591 wxString tmp(text,*wxConvCurrent);
1592 g_free( text );
1593
1594 gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1595 gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1596
1597 #if wxUSE_UNICODE
1598 wxWX2MBbuf buf = tmp.mbc_str();
1599 const char *txt = buf;
1600 size_t txtlen = strlen(buf);
1601 #else
1602 const char *txt = tmp;
1603 size_t txtlen = tmp.length();
1604 #endif
1605
1606 // use the attributes from style which are set in it and fall back
1607 // first to the default style and then to the text control default
1608 // colours for the others
1609 wxGtkTextInsert(m_text,
1610 wxTextAttr::Combine(style, m_defaultStyle, this),
1611 txt,
1612 txtlen);
1613
1614 /* does not seem to help under GTK+ 1.2 !!!
1615 gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1616 SetInsertionPoint( old_pos );
1617 #endif
1618 return true;
1619 }
1620 else // singe line
1621 {
1622 // cannot do this for GTK+'s Entry widget
1623 return false;
1624 }
1625 }
1626
1627 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1628 {
1629 gtk_widget_modify_style(m_text, style);
1630 }
1631
1632 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1633 {
1634 Cut();
1635 }
1636
1637 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1638 {
1639 Copy();
1640 }
1641
1642 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1643 {
1644 Paste();
1645 }
1646
1647 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1648 {
1649 Undo();
1650 }
1651
1652 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1653 {
1654 Redo();
1655 }
1656
1657 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1658 {
1659 event.Enable( CanCut() );
1660 }
1661
1662 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1663 {
1664 event.Enable( CanCopy() );
1665 }
1666
1667 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1668 {
1669 event.Enable( CanPaste() );
1670 }
1671
1672 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1673 {
1674 event.Enable( CanUndo() );
1675 }
1676
1677 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1678 {
1679 event.Enable( CanRedo() );
1680 }
1681
1682 void wxTextCtrl::OnInternalIdle()
1683 {
1684 wxCursor cursor = m_cursor;
1685 if (g_globalCursor.Ok()) cursor = g_globalCursor;
1686
1687 if (cursor.Ok())
1688 {
1689 #ifndef __WXGTK20__
1690 GdkWindow *window = (GdkWindow*) NULL;
1691 if (HasFlag(wxTE_MULTILINE))
1692 window = GTK_TEXT(m_text)->text_area;
1693 else
1694 window = GTK_ENTRY(m_text)->text_area;
1695
1696 if (window)
1697 gdk_window_set_cursor( window, cursor.GetCursor() );
1698
1699 if (!g_globalCursor.Ok())
1700 cursor = *wxSTANDARD_CURSOR;
1701
1702 window = m_widget->window;
1703 if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1704 gdk_window_set_cursor( window, cursor.GetCursor() );
1705 #endif
1706 }
1707
1708 if (g_delayedFocus == this)
1709 {
1710 if (GTK_WIDGET_REALIZED(m_widget))
1711 {
1712 gtk_widget_grab_focus( m_widget );
1713 g_delayedFocus = NULL;
1714 }
1715 }
1716
1717 if (wxUpdateUIEvent::CanUpdate(this))
1718 UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1719 }
1720
1721 wxSize wxTextCtrl::DoGetBestSize() const
1722 {
1723 // FIXME should be different for multi-line controls...
1724 wxSize ret( wxControl::DoGetBestSize() );
1725 wxSize best(80, ret.y);
1726 CacheBestSize(best);
1727 return best;
1728 }
1729
1730 // ----------------------------------------------------------------------------
1731 // freeze/thaw
1732 // ----------------------------------------------------------------------------
1733
1734 void wxTextCtrl::Freeze()
1735 {
1736 if ( HasFlag(wxTE_MULTILINE) )
1737 {
1738 #ifdef __WXGTK20__
1739 if ( !m_frozenness++ )
1740 {
1741 // freeze textview updates and remove buffer
1742 g_signal_connect( G_OBJECT(m_text), "expose_event",
1743 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
1744 g_signal_connect( G_OBJECT(m_widget), "expose_event",
1745 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
1746 gtk_widget_set_sensitive(m_widget, false);
1747 g_object_ref(m_buffer);
1748 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
1749 }
1750 #else
1751 gtk_text_freeze(GTK_TEXT(m_text));
1752 #endif
1753 }
1754 }
1755
1756 void wxTextCtrl::Thaw()
1757 {
1758 if ( HasFlag(wxTE_MULTILINE) )
1759 {
1760 #ifdef __WXGTK20__
1761 wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
1762
1763 if ( !--m_frozenness )
1764 {
1765 // Reattach buffer and thaw textview updates
1766 gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1767 g_object_unref(m_buffer);
1768 gtk_widget_set_sensitive(m_widget, true);
1769 g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
1770 g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
1771 }
1772 #else
1773 GTK_TEXT(m_text)->vadj->value = 0.0;
1774
1775 gtk_text_thaw(GTK_TEXT(m_text));
1776 #endif
1777 }
1778 }
1779
1780 // ----------------------------------------------------------------------------
1781 // scrolling
1782 // ----------------------------------------------------------------------------
1783
1784 GtkAdjustment *wxTextCtrl::GetVAdj() const
1785 {
1786 if ( !IsMultiLine() )
1787 return NULL;
1788
1789 #ifdef __WXGTK20__
1790 return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
1791 #else
1792 return GTK_TEXT(m_text)->vadj;
1793 #endif
1794 }
1795
1796 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1797 {
1798 float value = adj->value + diff;
1799
1800 if ( value < 0 )
1801 value = 0;
1802
1803 float upper = adj->upper - adj->page_size;
1804 if ( value > upper )
1805 value = upper;
1806
1807 // did we noticeably change the scroll position?
1808 if ( fabs(adj->value - value) < 0.2 )
1809 {
1810 // well, this is what Robert does in wxScrollBar, so it must be good...
1811 return false;
1812 }
1813
1814 adj->value = value;
1815
1816 #ifdef __WXGTK20__
1817 gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
1818 #else
1819 gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1820 #endif
1821
1822 return true;
1823 }
1824
1825 bool wxTextCtrl::ScrollLines(int lines)
1826 {
1827 GtkAdjustment *adj = GetVAdj();
1828 if ( !adj )
1829 return false;
1830
1831 #ifdef __WXGTK20__
1832 int diff = (int)ceil(lines*adj->step_increment);
1833 #else
1834 // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1835 int diff = 10*lines;
1836 #endif
1837
1838 return DoScroll(adj, diff);
1839 }
1840
1841 bool wxTextCtrl::ScrollPages(int pages)
1842 {
1843 GtkAdjustment *adj = GetVAdj();
1844 if ( !adj )
1845 return false;
1846
1847 return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1848 }
1849
1850
1851 // static
1852 wxVisualAttributes
1853 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1854 {
1855 return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1856 }
wxWidgets (Impactor)