src/gtk/textctrl.cpp

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