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 extern "C" {
 148 static void
 149 gtk_insert_text_callback(GtkEditable *editable,
 150                          const gchar *new_text,
 151                          gint new_text_length,
 152                          gint *position,
 153                          wxTextCtrl *win)
 154 {
 155     if (g_isIdle)
 156         wxapp_install_idle_handler();
 157
 158     // we should only be called if we have a max len limit at all
 159     GtkEntry *entry = GTK_ENTRY (editable);
 160
 161     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 162
 163     // check that we don't overflow the max length limit
 164     //
 165     // FIXME: this doesn't work when we paste a string which is going to be
 166     //        truncated
 167     if ( entry->text_length == entry->text_max_length )
 168     {
 169         // we don't need to run the base class version at all
 170         gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text");
 171
 172         // remember that the next changed signal is to be ignored to avoid
 173         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 174         win->IgnoreNextTextUpdate();
 175
 176         // and generate the correct one ourselves
 177         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 178         event.SetEventObject(win);
 179         event.SetString(win->GetValue());
 180         win->GetEventHandler()->ProcessEvent( event );
 181     }
 182 }
 183 }
 184
 185 #ifdef __WXGTK20__
 186 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 187
 188 extern "C" {
 189 static void
 190 au_apply_tag_callback(GtkTextBuffer *buffer,
 191                       GtkTextTag *tag,
 192                       GtkTextIter *start,
 193                       GtkTextIter *end,
 194                       gpointer textctrl)
 195 {
 196     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 197         g_signal_stop_emission_by_name(buffer, "apply_tag");
 198 }
 199 }
 200
 201 //-----------------------------------------------------------------------------
 202 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 203 //-----------------------------------------------------------------------------
 204
 205 extern "C" {
 206 static gboolean
 207 pred_whitespace (gunichar ch, gpointer user_data)
 208 {
 209     return g_unichar_isspace(ch);
 210 }
 211 }
 212
 213 extern "C" {
 214 static gboolean
 215 pred_non_whitespace (gunichar ch, gpointer user_data)
 216 {
 217     return !g_unichar_isspace(ch);
 218 }
 219 }
 220
 221 extern "C" {
 222 static gboolean
 223 pred_nonpunct (gunichar ch, gpointer user_data)
 224 {
 225     return !g_unichar_ispunct(ch);
 226 }
 227 }
 228
 229 extern "C" {
 230 static gboolean
 231 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 232 {
 233     return !g_unichar_ispunct(ch) || ch == '/';
 234 }
 235 }
 236
 237 //-----------------------------------------------------------------------------
 238 //  Check for links between s and e and correct tags as necessary
 239 //-----------------------------------------------------------------------------
 240
 241 // This function should be made match better while being efficient at one point.
 242 // Most probably with a row of regular expressions.
 243 extern "C" {
 244 static void
 245 au_check_word( GtkTextIter *s, GtkTextIter *e )
 246 {
 247     static const char *URIPrefixes[] =
 248     {
 249         "http://",
 250         "ftp://",
 251         "www.",
 252         "ftp.",
 253         "mailto://",
 254         "https://",
 255         "file://",
 256         "nntp://",
 257         "news://",
 258         "telnet://",
 259         "mms://",
 260         "gopher://",
 261         "prospero://",
 262         "wais://",
 263     };
 264
 265     GtkTextIter start = *s, end = *e;
 266     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 267
 268     // Get our special link tag
 269     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 270
 271     // Get rid of punctuation from beginning and end.
 272     // Might want to move this to au_check_range if an improved link checking doesn't
 273     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 274     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 275         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 276
 277     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 278     gtk_text_iter_forward_char(&end);
 279
 280     gchar* text = gtk_text_iter_get_text( &start, &end );
 281     size_t len = strlen(text), prefix_len;
 282     size_t n;
 283
 284     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 285     {
 286         prefix_len = strlen(URIPrefixes[n]);
 287         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 288             break;
 289     }
 290
 291     if(n < WXSIZEOF(URIPrefixes))
 292     {
 293         gulong signal_id = g_signal_handler_find(buffer,
 294                                                  (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 295                                                  0, 0, NULL,
 296                                                  (gpointer)au_apply_tag_callback, NULL);
 297
 298         g_signal_handler_block(buffer, signal_id);
 299         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 300         g_signal_handler_unblock(buffer, signal_id);
 301     }
 302 }
 303 }
 304
 305 extern "C" {
 306 static void
 307 au_check_range(GtkTextIter *s,
 308                GtkTextIter *range_end)
 309 {
 310     GtkTextIter range_start = *s;
 311     GtkTextIter word_end;
 312     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 313     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 314
 315     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 316
 317     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 318         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 319
 320     while(!gtk_text_iter_equal(&range_start, range_end))
 321     {
 322         word_end = range_start;
 323         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 324
 325         // Now we should have a word delimited by range_start and word_end, correct link tags
 326         au_check_word(&range_start, &word_end);
 327
 328         range_start = word_end;
 329         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 330     }
 331 }
 332 }
 333
 334 //-----------------------------------------------------------------------------
 335 //  "insert-text" for GtkTextBuffer
 336 //-----------------------------------------------------------------------------
 337
 338 extern "C" {
 339 static void
 340 au_insert_text_callback(GtkTextBuffer *buffer,
 341                         GtkTextIter *end,
 342                         gchar *text,
 343                         gint len,
 344                         wxTextCtrl *win)
 345 {
 346     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 347         return;
 348
 349     GtkTextIter start = *end;
 350     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 351
 352     GtkTextIter line_start = start;
 353     GtkTextIter line_end = *end;
 354     GtkTextIter words_start = start;
 355     GtkTextIter words_end = *end;
 356
 357     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 358     gtk_text_iter_forward_to_line_end(&line_end);
 359     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 360     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 361
 362     au_check_range(&words_start, &words_end);
 363 }
 364 }
 365
 366 //-----------------------------------------------------------------------------
 367 //  "delete-range" for GtkTextBuffer
 368 //-----------------------------------------------------------------------------
 369
 370 extern "C" {
 371 static void
 372 au_delete_range_callback(GtkTextBuffer *buffer,
 373                          GtkTextIter *start,
 374                          GtkTextIter *end,
 375                          wxTextCtrl *win)
 376 {
 377     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 378         return;
 379
 380     GtkTextIter line_start = *start, line_end = *end;
 381
 382     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 383     gtk_text_iter_forward_to_line_end(&line_end);
 384     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 385     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 386
 387     au_check_range(start, end);
 388 }
 389 }
 390
 391
 392 #endif
 393
 394 //-----------------------------------------------------------------------------
 395 //  "changed"
 396 //-----------------------------------------------------------------------------
 397
 398 extern "C" {
 399 static void
 400 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 401 {
 402     if ( win->IgnoreTextUpdate() )
 403         return;
 404
 405     if (!win->m_hasVMT) return;
 406
 407     if (g_isIdle)
 408         wxapp_install_idle_handler();
 409
 410     win->SetModified();
 411 #ifndef __WXGTK20__
 412     win->UpdateFontIfNeeded();
 413 #endif // !__WXGTK20__
 414
 415     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 416     event.SetEventObject( win );
 417     win->GetEventHandler()->ProcessEvent( event );
 418 }
 419 }
 420
 421 //-----------------------------------------------------------------------------
 422 // "expose_event" from scrolled window and textview
 423 //-----------------------------------------------------------------------------
 424
 425 #ifdef __WXGTK20__
 426 extern "C" {
 427 static gboolean
 428 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 429 {
 430     return TRUE;
 431 }
 432 }
 433 #endif
 434
 435 //-----------------------------------------------------------------------------
 436 // "changed" from vertical scrollbar
 437 //-----------------------------------------------------------------------------
 438
 439 #ifndef __WXGTK20__
 440 extern "C" {
 441 static void
 442 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
 443 {
 444     if (!win->m_hasVMT) return;
 445
 446     if (g_isIdle)
 447         wxapp_install_idle_handler();
 448
 449     win->CalculateScrollbar();
 450 }
 451 }
 452 #endif
 453
 454 // ----------------------------------------------------------------------------
 455 // redraw callback for multiline text
 456 // ----------------------------------------------------------------------------
 457
 458 #ifndef __WXGTK20__
 459
 460 // redrawing a GtkText from inside a wxYield() call results in crashes (the
 461 // text sample shows it in its "Add lines" command which shows wxProgressDialog
 462 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
 463 // don't do anything if we're inside wxYield()
 464
 465 extern bool wxIsInsideYield;
 466
 467 extern "C" {
 468     typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
 469 }
 470
 471 static GtkDrawCallback gs_gtk_text_draw = NULL;
 472
 473 extern "C" {
 474 static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
 475 {
 476     if ( !wxIsInsideYield )
 477     {
 478         wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
 479                      _T("infinite recursion in wxgtk_text_draw aborted") );
 480
 481         gs_gtk_text_draw(widget, rect);
 482     }
 483 }
 484 }
 485
 486 #endif // __WXGTK20__
 487
 488 //-----------------------------------------------------------------------------
 489 //  wxTextCtrl
 490 //-----------------------------------------------------------------------------
 491
 492 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 493
 494 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 495     EVT_CHAR(wxTextCtrl::OnChar)
 496
 497     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 498     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 499     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 500     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 501     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 502
 503     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 504     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 505     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 506     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 507     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 508
 509 #ifdef __WXGTK20__
 510     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 511     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 512     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 513     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 514     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 515     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 516     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 517     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 518     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 519 #endif
 520 END_EVENT_TABLE()
 521
 522 void wxTextCtrl::Init()
 523 {
 524     m_ignoreNextUpdate =
 525     m_modified = false;
 526     SetUpdateFont(false);
 527     m_text =
 528     m_vScrollbar = (GtkWidget *)NULL;
 529 #ifdef __WXGTK20__
 530     m_frozenness = 0;
 531     m_gdkHandCursor = NULL;
 532     m_gdkXTermCursor = NULL;
 533 #endif
 534 }
 535
 536 wxTextCtrl::~wxTextCtrl()
 537 {
 538 #ifdef __WXGTK20__
 539     if(m_gdkHandCursor)
 540         gdk_cursor_unref(m_gdkHandCursor);
 541     if(m_gdkXTermCursor)
 542         gdk_cursor_unref(m_gdkXTermCursor);
 543 #endif
 544 }
 545
 546 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 547                         wxWindowID id,
 548                         const wxString &value,
 549                         const wxPoint &pos,
 550                         const wxSize &size,
 551                         long style,
 552                         const wxValidator& validator,
 553                         const wxString &name )
 554 {
 555     Init();
 556
 557     Create( parent, id, value, pos, size, style, validator, name );
 558 }
 559
 560 bool wxTextCtrl::Create( wxWindow *parent,
 561                          wxWindowID id,
 562                          const wxString &value,
 563                          const wxPoint &pos,
 564                          const wxSize &size,
 565                          long style,
 566                          const wxValidator& validator,
 567                          const wxString &name )
 568 {
 569     m_needParent = true;
 570     m_acceptsFocus = true;
 571
 572     if (!PreCreation( parent, pos, size ) ||
 573         !CreateBase( parent, id, pos, size, style, validator, name ))
 574     {
 575         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 576         return false;
 577     }
 578
 579
 580     m_vScrollbarVisible = false;
 581
 582     bool multi_line = (style & wxTE_MULTILINE) != 0;
 583
 584     if (multi_line)
 585     {
 586 #ifdef __WXGTK20__
 587         // Create view
 588         m_text = gtk_text_view_new();
 589
 590         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 591
 592         // create scrolled window
 593         m_widget = gtk_scrolled_window_new( NULL, NULL );
 594         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 595                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 596
 597         // Insert view into scrolled window
 598         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 599
 600         // translate wx wrapping style to GTK+
 601         GtkWrapMode wrap;
 602         if ( HasFlag( wxTE_DONTWRAP ) )
 603             wrap = GTK_WRAP_NONE;
 604         else if ( HasFlag( wxTE_CHARWRAP ) )
 605             wrap = GTK_WRAP_CHAR;
 606         else if ( HasFlag( wxTE_WORDWRAP ) )
 607             wrap = GTK_WRAP_WORD;
 608         else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 609         {
 610             // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 611 #ifdef __WXGTK24__
 612             if ( !gtk_check_version(2,4,0) )
 613             {
 614                 wrap = GTK_WRAP_WORD_CHAR;
 615             }
 616             else
 617 #endif
 618             wrap = GTK_WRAP_WORD;
 619         }
 620
 621         gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 622
 623         if (!HasFlag(wxNO_BORDER))
 624             gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
 625
 626         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 627
 628         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 629 #else // GTK+ 1
 630         // create our control ...
 631         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 632
 633         // ... and put into the upper left hand corner of the table
 634         bool bHasHScrollbar = false;
 635         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 636         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 637         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 638                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 639                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 640                        0, 0);
 641
 642         // always wrap words
 643         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 644
 645         // finally, put the vertical scrollbar in the upper right corner
 646         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 647         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 648         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 649                      GTK_FILL,
 650                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 651                      0, 0);
 652 #endif // GTK+ 2/1
 653     }
 654     else
 655     {
 656         // a single-line text control: no need for scrollbars
 657         m_widget =
 658         m_text = gtk_entry_new();
 659
 660 #ifdef __WXGTK20__
 661         if (style & wxNO_BORDER)
 662             g_object_set( GTK_ENTRY(m_text), "has-frame", FALSE, NULL );
 663 #endif
 664     }
 665
 666     m_parent->DoAddChild( this );
 667
 668     m_focusWidget = m_text;
 669
 670     PostCreation(size);
 671
 672     if (multi_line)
 673         gtk_widget_show(m_text);
 674
 675 #ifndef __WXGTK20__
 676     if (multi_line)
 677     {
 678         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 679           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 680
 681         // only initialize gs_gtk_text_draw once, starting from the next the
 682         // klass::draw will already be wxgtk_text_draw
 683         if ( !gs_gtk_text_draw )
 684         {
 685             GtkDrawCallback&
 686                 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
 687
 688             gs_gtk_text_draw = draw;
 689
 690             draw = wxgtk_text_draw;
 691         }
 692     }
 693 #endif // GTK+ 1.x
 694
 695     if (!value.empty())
 696     {
 697 #ifdef __WXGTK20__
 698         SetValue( value );
 699 #else
 700
 701 #if !GTK_CHECK_VERSION(1, 2, 0)
 702         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 703         // gtk_editable_insert_text()
 704         gtk_widget_realize(m_text);
 705 #endif // GTK 1.0
 706
 707         gint tmp = 0;
 708 #if wxUSE_UNICODE
 709         wxWX2MBbuf val = value.mbc_str();
 710         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 711 #else
 712         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 713 #endif
 714
 715         if (multi_line)
 716         {
 717             // Bring editable's cursor uptodate. Bug in GTK.
 718             SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 719         }
 720
 721 #endif
 722     }
 723
 724     if (style & wxTE_PASSWORD)
 725     {
 726         if (!multi_line)
 727             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 728     }
 729
 730     if (style & wxTE_READONLY)
 731     {
 732         if (!multi_line)
 733             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 734 #ifdef __WXGTK20__
 735         else
 736             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 737 #else
 738     }
 739     else
 740     {
 741         if (multi_line)
 742             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 743 #endif
 744     }
 745
 746 #ifdef __WXGTK20__
 747     if (multi_line)
 748     {
 749         if (style & wxTE_RIGHT)
 750             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 751         else if (style & wxTE_CENTRE)
 752             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 753         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 754     }
 755     else
 756     {
 757 #ifdef __WXGTK24__
 758         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 759         if (!gtk_check_version(2,4,0))
 760         {
 761             if (style & wxTE_RIGHT)
 762                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 763             else if (style & wxTE_CENTRE)
 764                 gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 765         }
 766 #endif
 767     }
 768 #endif // __WXGTK20__
 769
 770     // We want to be notified about text changes.
 771 #ifdef __WXGTK20__
 772     if (multi_line)
 773     {
 774         g_signal_connect( G_OBJECT(m_buffer), "changed",
 775             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 776
 777         // .. and handle URLs on multi-line controls with wxTE_AUTO_URL style
 778         if (style & wxTE_AUTO_URL)
 779         {
 780             GtkTextIter start, end;
 781             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 782             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 783
 784             // We create our wxUrl tag here for slight efficiency gain - we
 785             // don't have to check for the tag existance in callbacks,
 786             // hereby it's guaranteed to exist.
 787             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 788                                        "foreground", "blue",
 789                                        "underline", PANGO_UNDERLINE_SINGLE,
 790                                        NULL);
 791
 792             // Check for URLs after each text change
 793             g_signal_connect_after( G_OBJECT(m_buffer), "insert_text",
 794                 GTK_SIGNAL_FUNC(au_insert_text_callback), (gpointer)this);
 795             g_signal_connect_after( G_OBJECT(m_buffer), "delete_range",
 796                 GTK_SIGNAL_FUNC(au_delete_range_callback), (gpointer)this);
 797
 798             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 799             // block this callback temporarily. This takes care of gtk+ internal
 800             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 801             // which is undesired because only a part of the URL might be copied.
 802             // The insert-text signal emitted inside it will take care of newly formed
 803             // or wholly copied URLs.
 804             g_signal_connect( G_OBJECT(m_buffer), "apply_tag",
 805                 GTK_SIGNAL_FUNC(au_apply_tag_callback), NULL);
 806
 807             // Check for URLs in the initial string passed to Create
 808             gtk_text_buffer_get_start_iter(m_buffer, &start);
 809             gtk_text_buffer_get_end_iter(m_buffer, &end);
 810             au_check_range(&start, &end);
 811         }
 812     }
 813     else
 814 #endif
 815
 816     {
 817         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 818             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 819     }
 820
 821     m_cursor = wxCursor( wxCURSOR_IBEAM );
 822
 823     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 824     SetDefaultStyle( attrDef );
 825
 826     return true;
 827 }
 828
 829
 830 void wxTextCtrl::CalculateScrollbar()
 831 {
 832 #ifndef __WXGTK20__
 833     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 834
 835     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 836
 837     if (adj->upper - adj->page_size < 0.8)
 838     {
 839         if (m_vScrollbarVisible)
 840         {
 841             gtk_widget_hide( m_vScrollbar );
 842             m_vScrollbarVisible = false;
 843         }
 844     }
 845     else
 846     {
 847         if (!m_vScrollbarVisible)
 848         {
 849             gtk_widget_show( m_vScrollbar );
 850             m_vScrollbarVisible = true;
 851         }
 852     }
 853 #endif
 854 }
 855
 856 wxString wxTextCtrl::GetValue() const
 857 {
 858     wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
 859
 860     wxString tmp;
 861     if (m_windowStyle & wxTE_MULTILINE)
 862     {
 863 #ifdef __WXGTK20__
 864         GtkTextIter start;
 865         gtk_text_buffer_get_start_iter( m_buffer, &start );
 866         GtkTextIter end;
 867         gtk_text_buffer_get_end_iter( m_buffer, &end );
 868         gchar *text = gtk_text_buffer_get_text( m_buffer, &start, &end, TRUE );
 869
 870 #if wxUSE_UNICODE
 871         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 872 #else
 873         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 874 #endif
 875         if ( buffer )
 876             tmp = buffer;
 877
 878         g_free( text );
 879 #else
 880         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 881         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 882         tmp = text;
 883         g_free( text );
 884 #endif
 885     }
 886     else
 887     {
 888         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 889     }
 890
 891     return tmp;
 892 }
 893
 894 void wxTextCtrl::SetValue( const wxString &value )
 895 {
 896     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 897
 898     if (m_windowStyle & wxTE_MULTILINE)
 899     {
 900 #ifdef __WXGTK20__
 901
 902 #if wxUSE_UNICODE
 903         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 904 #else
 905         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 906 #endif
 907         if (gtk_text_buffer_get_char_count(m_buffer) != 0)
 908             IgnoreNextTextUpdate();
 909
 910         if ( !buffer )
 911         {
 912             // what else can we do? at least don't crash...
 913             return;
 914         }
 915
 916         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 917
 918 #else
 919         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 920         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 921         len = 0;
 922         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 923 #endif
 924     }
 925     else
 926     {
 927         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 928     }
 929
 930     // GRG, Jun/2000: Changed this after a lot of discussion in
 931     //   the lists. wxWidgets 2.2 will have a set of flags to
 932     //   customize this behaviour.
 933     SetInsertionPoint(0);
 934
 935     m_modified = false;
 936 }
 937
 938 void wxTextCtrl::WriteText( const wxString &text )
 939 {
 940     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 941
 942     if ( text.empty() )
 943         return;
 944
 945     // gtk_text_changed_callback() will set m_modified to true but m_modified
 946     // shouldn't be changed by the program writing to the text control itself,
 947     // so save the old value and restore when we're done
 948     bool oldModified = m_modified;
 949
 950     if ( m_windowStyle & wxTE_MULTILINE )
 951     {
 952 #ifdef __WXGTK20__
 953
 954 #if wxUSE_UNICODE
 955         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 956 #else
 957         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 958 #endif
 959         if ( !buffer )
 960         {
 961             // what else can we do? at least don't crash...
 962             return;
 963         }
 964
 965         // TODO: Call whatever is needed to delete the selection.
 966         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 967
 968         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 969         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 970         if ( adj->value == adj->upper - adj->page_size )
 971         {
 972             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 973                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
 974         }
 975 #else // GTK 1.x
 976         // After cursor movements, gtk_text_get_point() is wrong by one.
 977         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
 978
 979         // always use m_defaultStyle, even if it is empty as otherwise
 980         // resetting the style and appending some more text wouldn't work: if
 981         // we don't specify the style explicitly, the old style would be used
 982         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 983         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
 984
 985         // we called wxGtkTextInsert with correct font, no need to do anything
 986         // in UpdateFontIfNeeded() any longer
 987         if ( !text.empty() )
 988         {
 989             SetUpdateFont(false);
 990         }
 991
 992         // Bring editable's cursor back uptodate.
 993         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 994 #endif // GTK 1.x/2.0
 995     }
 996     else // single line
 997     {
 998         // First remove the selection if there is one
 999         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1000
1001         // This moves the cursor pos to behind the inserted text.
1002         gint len = GET_EDITABLE_POS(m_text);
1003
1004 #ifdef __WXGTK20__
1005
1006 #if wxUSE_UNICODE
1007         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1008 #else
1009         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1010 #endif
1011         if ( !buffer )
1012         {
1013             // what else can we do? at least don't crash...
1014             return;
1015         }
1016
1017         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1018
1019 #else
1020         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1021 #endif
1022
1023         // Bring entry's cursor uptodate.
1024         gtk_entry_set_position( GTK_ENTRY(m_text), len );
1025     }
1026
1027     m_modified = oldModified;
1028 }
1029
1030 void wxTextCtrl::AppendText( const wxString &text )
1031 {
1032     SetInsertionPointEnd();
1033     WriteText( text );
1034 }
1035
1036 wxString wxTextCtrl::GetLineText( long lineNo ) const
1037 {
1038     if (m_windowStyle & wxTE_MULTILINE)
1039     {
1040 #ifndef __WXGTK20__
1041         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1042         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1043
1044         if (text)
1045         {
1046             wxString buf(wxT(""));
1047             long i;
1048             int currentLine = 0;
1049             for (i = 0; currentLine != lineNo && text[i]; i++ )
1050                 if (text[i] == '\n')
1051             currentLine++;
1052             // Now get the text
1053             int j;
1054             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1055                 buf += text[i];
1056
1057             g_free( text );
1058             return buf;
1059         }
1060         else
1061         {
1062             return wxEmptyString;
1063         }
1064 #else
1065         GtkTextIter line;
1066         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1067         GtkTextIter end;
1068         gtk_text_buffer_get_end_iter(m_buffer,&end );
1069         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1070         wxString result(wxGTK_CONV_BACK(text));
1071         g_free(text);
1072         return result.BeforeFirst(wxT('\n'));
1073 #endif
1074     }
1075     else
1076     {
1077         if (lineNo == 0) return GetValue();
1078         return wxEmptyString;
1079     }
1080 }
1081
1082 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1083 {
1084   /* If you implement this, don't forget to update the documentation!
1085    * (file docs/latex/wx/text.tex) */
1086     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1087 }
1088
1089 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1090 {
1091     if ( m_windowStyle & wxTE_MULTILINE )
1092     {
1093         wxString text = GetValue();
1094
1095         // cast to prevent warning. But pos really should've been unsigned.
1096         if( (unsigned long)pos > text.Len()  )
1097             return false;
1098
1099         *x=0;   // First Col
1100         *y=0;   // First Line
1101
1102         const wxChar* stop = text.c_str() + pos;
1103         for ( const wxChar *p = text.c_str(); p < stop; p++ )
1104         {
1105             if (*p == wxT('\n'))
1106             {
1107                 (*y)++;
1108                 *x=0;
1109             }
1110             else
1111                 (*x)++;
1112         }
1113     }
1114     else // single line control
1115     {
1116         if ( pos <= GTK_ENTRY(m_text)->text_length )
1117         {
1118             *y = 0;
1119             *x = pos;
1120         }
1121         else
1122         {
1123             // index out of bounds
1124             return false;
1125         }
1126     }
1127
1128     return true;
1129 }
1130
1131 long wxTextCtrl::XYToPosition(long x, long y ) const
1132 {
1133     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1134
1135     long pos=0;
1136     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1137
1138     pos += x;
1139     return pos;
1140 }
1141
1142 int wxTextCtrl::GetLineLength(long lineNo) const
1143 {
1144     wxString str = GetLineText (lineNo);
1145     return (int) str.Length();
1146 }
1147
1148 int wxTextCtrl::GetNumberOfLines() const
1149 {
1150     if (m_windowStyle & wxTE_MULTILINE)
1151     {
1152 #ifdef __WXGTK20__
1153         return gtk_text_buffer_get_line_count( m_buffer );
1154 #else
1155         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1156         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1157
1158         if (text)
1159         {
1160             int currentLine = 0;
1161             for (int i = 0; i < len; i++ )
1162             {
1163                 if (text[i] == '\n')
1164                     currentLine++;
1165             }
1166             g_free( text );
1167
1168             // currentLine is 0 based, add 1 to get number of lines
1169             return currentLine + 1;
1170         }
1171         else
1172         {
1173             return 0;
1174         }
1175 #endif
1176     }
1177     else
1178     {
1179         return 1;
1180     }
1181 }
1182
1183 void wxTextCtrl::SetInsertionPoint( long pos )
1184 {
1185     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1186
1187     if ( IsMultiLine() )
1188     {
1189 #ifdef __WXGTK20__
1190         GtkTextIter iter;
1191         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1192         gtk_text_buffer_place_cursor( m_buffer, &iter );
1193         gtk_text_view_scroll_mark_onscreen
1194         (
1195             GTK_TEXT_VIEW(m_text),
1196             gtk_text_buffer_get_insert( m_buffer )
1197         );
1198 #else // GTK+ 1.x
1199         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1200           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1201
1202         /* we fake a set_point by inserting and deleting. as the user
1203            isn't supposed to get to know about this non-sense, we
1204            disconnect so that no events are sent to the user program. */
1205
1206         gint tmp = (gint)pos;
1207         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1208         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1209
1210         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1211           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1212
1213         // bring editable's cursor uptodate. Bug in GTK.
1214         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1215 #endif // GTK+ 2/1
1216     }
1217     else
1218     {
1219         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1220
1221         // Bring editable's cursor uptodate. Bug in GTK.
1222         SET_EDITABLE_POS(m_text, (guint32)pos);
1223     }
1224 }
1225
1226 void wxTextCtrl::SetInsertionPointEnd()
1227 {
1228     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1229
1230     if (m_windowStyle & wxTE_MULTILINE)
1231     {
1232 #ifdef __WXGTK20__
1233         GtkTextIter end;
1234         gtk_text_buffer_get_end_iter( m_buffer, &end );
1235         gtk_text_buffer_place_cursor( m_buffer, &end );
1236 #else
1237         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1238 #endif
1239     }
1240     else
1241     {
1242         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1243     }
1244 }
1245
1246 void wxTextCtrl::SetEditable( bool editable )
1247 {
1248     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1249
1250     if (m_windowStyle & wxTE_MULTILINE)
1251     {
1252 #ifdef __WXGTK20__
1253         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1254 #else
1255         gtk_text_set_editable( GTK_TEXT(m_text), editable );
1256 #endif
1257     }
1258     else
1259     {
1260         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1261     }
1262 }
1263
1264 bool wxTextCtrl::Enable( bool enable )
1265 {
1266     if (!wxWindowBase::Enable(enable))
1267     {
1268         // nothing to do
1269         return false;
1270     }
1271
1272     if (m_windowStyle & wxTE_MULTILINE)
1273     {
1274 #ifdef __WXGTK20__
1275         SetEditable( enable );
1276 #else
1277         gtk_text_set_editable( GTK_TEXT(m_text), enable );
1278         OnParentEnable(enable);
1279 #endif
1280     }
1281     else
1282     {
1283         gtk_widget_set_sensitive( m_text, enable );
1284     }
1285
1286     return true;
1287 }
1288
1289 // wxGTK-specific: called recursively by Enable,
1290 // to give widgets an oppprtunity to correct their colours after they
1291 // have been changed by Enable
1292 void wxTextCtrl::OnParentEnable( bool enable )
1293 {
1294     // If we have a custom background colour, we use this colour in both
1295     // disabled and enabled mode, or we end up with a different colour under the
1296     // text.
1297     wxColour oldColour = GetBackgroundColour();
1298     if (oldColour.Ok())
1299     {
1300         // Need to set twice or it'll optimize the useful stuff out
1301         if (oldColour == * wxWHITE)
1302             SetBackgroundColour(*wxBLACK);
1303         else
1304             SetBackgroundColour(*wxWHITE);
1305         SetBackgroundColour(oldColour);
1306     }
1307 }
1308
1309 void wxTextCtrl::MarkDirty()
1310 {
1311     m_modified = true;
1312 }
1313
1314 void wxTextCtrl::DiscardEdits()
1315 {
1316     m_modified = false;
1317 }
1318
1319 // ----------------------------------------------------------------------------
1320 // max text length support
1321 // ----------------------------------------------------------------------------
1322
1323 void wxTextCtrl::IgnoreNextTextUpdate()
1324 {
1325     m_ignoreNextUpdate = true;
1326 }
1327
1328 bool wxTextCtrl::IgnoreTextUpdate()
1329 {
1330     if ( m_ignoreNextUpdate )
1331     {
1332         m_ignoreNextUpdate = false;
1333
1334         return true;
1335     }
1336
1337     return false;
1338 }
1339
1340 void wxTextCtrl::SetMaxLength(unsigned long len)
1341 {
1342     if ( !HasFlag(wxTE_MULTILINE) )
1343     {
1344         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1345
1346         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1347         // we had tried to enter more text than allowed by max text length and
1348         // the text wasn't really changed
1349         //
1350         // to detect this and generate TEXT_MAXLEN event instead of
1351         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1352         //
1353         // when max len is set to 0 we disconnect our handler as it means that
1354         // we shouldn't check anything any more
1355         if ( len )
1356         {
1357             gtk_signal_connect( GTK_OBJECT(m_text),
1358                                 "insert_text",
1359                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1360                                 (gpointer)this);
1361         }
1362         else // no checking
1363         {
1364             gtk_signal_disconnect_by_func
1365             (
1366                 GTK_OBJECT(m_text),
1367                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1368                 (gpointer)this
1369             );
1370         }
1371     }
1372 }
1373
1374 void wxTextCtrl::SetSelection( long from, long to )
1375 {
1376     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1377
1378     if (from == -1 && to == -1)
1379     {
1380         from = 0;
1381         to = GetValue().Length();
1382     }
1383
1384 #ifndef __WXGTK20__
1385     if ( (m_windowStyle & wxTE_MULTILINE) &&
1386          !GTK_TEXT(m_text)->line_start_cache )
1387     {
1388         // tell the programmer that it didn't work
1389         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1390         return;
1391     }
1392 #endif
1393
1394     if (m_windowStyle & wxTE_MULTILINE)
1395     {
1396 #ifdef __WXGTK20__
1397         GtkTextIter fromi, toi;
1398         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1399         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1400
1401         gtk_text_buffer_place_cursor( m_buffer, &toi );
1402         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1403 #else
1404         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1405 #endif
1406     }
1407     else
1408     {
1409         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1410     }
1411 }
1412
1413 void wxTextCtrl::ShowPosition( long pos )
1414 {
1415     if (m_windowStyle & wxTE_MULTILINE)
1416     {
1417 #ifdef __WXGTK20__
1418         GtkTextIter iter;
1419         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1420         gtk_text_iter_set_offset( &iter, pos );
1421         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1422         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1423 #else // GTK 1.x
1424         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1425         float totalLines =  (float) GetNumberOfLines();
1426         long posX;
1427         long posY;
1428         PositionToXY(pos, &posX, &posY);
1429         float posLine = (float) posY;
1430         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1431         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1432 #endif // GTK 1.x/2.x
1433     }
1434 }
1435
1436 #ifdef __WXGTK20__
1437
1438 wxTextCtrlHitTestResult
1439 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1440 {
1441     if ( !IsMultiLine() )
1442     {
1443         // not supported
1444         return wxTE_HT_UNKNOWN;
1445     }
1446
1447     int x, y;
1448     gtk_text_view_window_to_buffer_coords
1449     (
1450         GTK_TEXT_VIEW(m_text),
1451         GTK_TEXT_WINDOW_TEXT,
1452         pt.x, pt.y,
1453         &x, &y
1454     );
1455
1456     GtkTextIter iter;
1457     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1458     if ( pos )
1459         *pos = gtk_text_iter_get_offset(&iter);
1460
1461     return wxTE_HT_ON_TEXT;
1462 }
1463
1464 #endif // __WXGTK20__
1465
1466 long wxTextCtrl::GetInsertionPoint() const
1467 {
1468     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1469
1470 #ifdef __WXGTK20__
1471     if (m_windowStyle & wxTE_MULTILINE)
1472     {
1473         // There is no direct accessor for the cursor, but
1474         // internally, the cursor is the "mark" called
1475         // "insert" in the text view's btree structure.
1476
1477         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1478         GtkTextIter cursor;
1479         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1480
1481         return gtk_text_iter_get_offset( &cursor );
1482     }
1483     else
1484 #endif
1485     {
1486     return (long) GET_EDITABLE_POS(m_text);
1487     }
1488 }
1489
1490 wxTextPos wxTextCtrl::GetLastPosition() const
1491 {
1492     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1493
1494     int pos = 0;
1495
1496     if (m_windowStyle & wxTE_MULTILINE)
1497     {
1498 #ifdef __WXGTK20__
1499         GtkTextIter end;
1500         gtk_text_buffer_get_end_iter( m_buffer, &end );
1501
1502         pos = gtk_text_iter_get_offset( &end );
1503 #else
1504         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1505 #endif
1506     }
1507     else
1508     {
1509         pos = GTK_ENTRY(m_text)->text_length;
1510     }
1511
1512     return (long)pos;
1513 }
1514
1515 void wxTextCtrl::Remove( long from, long to )
1516 {
1517     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1518
1519 #ifdef __WXGTK20__
1520     if (m_windowStyle & wxTE_MULTILINE)
1521     {
1522         GtkTextIter fromi, toi;
1523         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1524         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1525
1526         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1527     }
1528     else // single line
1529 #endif
1530     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1531 }
1532
1533 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1534 {
1535     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1536
1537     Remove( from, to );
1538
1539     if (!value.empty())
1540     {
1541 #ifdef __WXGTK20__
1542         SetInsertionPoint( from );
1543         WriteText( value );
1544 #else // GTK 1.x
1545         gint pos = (gint)from;
1546 #if wxUSE_UNICODE
1547         wxWX2MBbuf buf = value.mbc_str();
1548         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1549 #else
1550         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1551 #endif // wxUSE_UNICODE
1552 #endif // GTK 1.x/2.x
1553     }
1554 }
1555
1556 void wxTextCtrl::Cut()
1557 {
1558     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1559
1560 #ifdef __WXGTK20__
1561     if (m_windowStyle & wxTE_MULTILINE)
1562         g_signal_emit_by_name(m_text, "cut-clipboard");
1563     else
1564 #endif
1565         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1566 }
1567
1568 void wxTextCtrl::Copy()
1569 {
1570     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1571
1572 #ifdef __WXGTK20__
1573     if (m_windowStyle & wxTE_MULTILINE)
1574         g_signal_emit_by_name(m_text, "copy-clipboard");
1575     else
1576 #endif
1577         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1578 }
1579
1580 void wxTextCtrl::Paste()
1581 {
1582     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1583
1584 #ifdef __WXGTK20__
1585     if (m_windowStyle & wxTE_MULTILINE)
1586         g_signal_emit_by_name(m_text, "paste-clipboard");
1587     else
1588 #endif
1589         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1590 }
1591
1592 // Undo/redo
1593 void wxTextCtrl::Undo()
1594 {
1595     // TODO
1596     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1597 }
1598
1599 void wxTextCtrl::Redo()
1600 {
1601     // TODO
1602     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1603 }
1604
1605 bool wxTextCtrl::CanUndo() const
1606 {
1607     // TODO
1608     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1609     return false;
1610 }
1611
1612 bool wxTextCtrl::CanRedo() const
1613 {
1614     // TODO
1615     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1616     return false;
1617 }
1618
1619 // If the return values from and to are the same, there is no
1620 // selection.
1621 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1622 {
1623     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1624
1625     gint from = -1;
1626     gint to = -1;
1627     bool haveSelection = false;
1628
1629 #ifdef __WXGTK20__
1630      if (m_windowStyle & wxTE_MULTILINE)
1631      {
1632          GtkTextIter ifrom, ito;
1633          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1634          {
1635              haveSelection = true;
1636              from = gtk_text_iter_get_offset(&ifrom);
1637              to = gtk_text_iter_get_offset(&ito);
1638          }
1639      }
1640      else  // not multi-line
1641      {
1642          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1643                                                  &from, &to) )
1644          {
1645              haveSelection = true;
1646          }
1647      }
1648 #else //  not GTK2
1649      if ( (GTK_EDITABLE(m_text)->has_selection) )
1650      {
1651          haveSelection = true;
1652          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1653          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1654      }
1655 #endif
1656
1657      if (! haveSelection )
1658           from = to = GetInsertionPoint();
1659
1660      if ( from > to )
1661      {
1662          // exchange them to be compatible with wxMSW
1663          gint tmp = from;
1664          from = to;
1665          to = tmp;
1666      }
1667
1668     if ( fromOut )
1669         *fromOut = from;
1670     if ( toOut )
1671         *toOut = to;
1672 }
1673
1674
1675 bool wxTextCtrl::IsEditable() const
1676 {
1677     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1678
1679 #ifdef __WXGTK20__
1680     if (m_windowStyle & wxTE_MULTILINE)
1681     {
1682         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1683     }
1684     else
1685     {
1686         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1687     }
1688 #else
1689     return GTK_EDITABLE(m_text)->editable;
1690 #endif
1691 }
1692
1693 bool wxTextCtrl::IsModified() const
1694 {
1695     return m_modified;
1696 }
1697
1698 void wxTextCtrl::Clear()
1699 {
1700     SetValue( wxT("") );
1701 }
1702
1703 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1704 {
1705     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1706
1707     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1708     {
1709         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1710         event.SetEventObject(this);
1711         event.SetString(GetValue());
1712         if (GetEventHandler()->ProcessEvent(event)) return;
1713     }
1714
1715     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1716     {
1717         // This will invoke the dialog default action, such
1718         // as the clicking the default button.
1719
1720         wxWindow *top_frame = m_parent;
1721         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1722             top_frame = top_frame->GetParent();
1723
1724         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1725         {
1726             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1727
1728             if (window->default_widget)
1729             {
1730                 gtk_widget_activate (window->default_widget);
1731                 return;
1732             }
1733         }
1734     }
1735
1736     key_event.Skip();
1737 }
1738
1739 GtkWidget* wxTextCtrl::GetConnectWidget()
1740 {
1741     return GTK_WIDGET(m_text);
1742 }
1743
1744 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1745 {
1746     if (m_windowStyle & wxTE_MULTILINE)
1747     {
1748 #ifdef __WXGTK20__
1749         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1750 #else
1751         return (window == GTK_TEXT(m_text)->text_area);
1752 #endif
1753     }
1754     else
1755     {
1756         return (window == GTK_ENTRY(m_text)->text_area);
1757     }
1758 }
1759
1760 // the font will change for subsequent text insertiongs
1761 bool wxTextCtrl::SetFont( const wxFont &font )
1762 {
1763     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1764
1765     if ( !wxTextCtrlBase::SetFont(font) )
1766     {
1767         // font didn't change, nothing to do
1768         return false;
1769     }
1770
1771     if ( m_windowStyle & wxTE_MULTILINE )
1772     {
1773         SetUpdateFont(true);
1774
1775         m_defaultStyle.SetFont(font);
1776
1777         ChangeFontGlobally();
1778     }
1779
1780     return true;
1781 }
1782
1783 void wxTextCtrl::ChangeFontGlobally()
1784 {
1785     // this method is very inefficient and hence should be called as rarely as
1786     // possible!
1787     //
1788     // TODO: it can be implemented much more efficiently for GTK2
1789 #ifndef __WXGTK20__
1790     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1791
1792                   _T("shouldn't be called for single line controls") );
1793 #else
1794     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1795                   _T("shouldn't be called for single line controls") );
1796 #endif
1797
1798     wxString value = GetValue();
1799     if ( !value.empty() )
1800     {
1801         SetUpdateFont(false);
1802
1803         Clear();
1804         AppendText(value);
1805     }
1806 }
1807
1808 #ifndef __WXGTK20__
1809
1810 void wxTextCtrl::UpdateFontIfNeeded()
1811 {
1812     if ( m_updateFont )
1813         ChangeFontGlobally();
1814 }
1815
1816 #endif // GTK+ 1.x
1817
1818 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1819 {
1820     if ( !wxControl::SetForegroundColour(colour) )
1821         return false;
1822
1823     // update default fg colour too
1824     m_defaultStyle.SetTextColour(colour);
1825
1826     return true;
1827 }
1828
1829 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1830 {
1831     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1832
1833     if ( !wxControl::SetBackgroundColour( colour ) )
1834         return false;
1835
1836 #ifndef __WXGTK20__
1837     if (!m_widget->window)
1838         return false;
1839 #endif
1840
1841     if (!m_backgroundColour.Ok())
1842         return false;
1843
1844     if (m_windowStyle & wxTE_MULTILINE)
1845     {
1846 #ifndef __WXGTK20__
1847         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1848         if (!window)
1849             return false;
1850         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1851         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1852         gdk_window_clear( window );
1853 #endif
1854     }
1855
1856     // change active background color too
1857     m_defaultStyle.SetBackgroundColour( colour );
1858
1859     return true;
1860 }
1861
1862 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1863 {
1864     if ( m_windowStyle & wxTE_MULTILINE )
1865     {
1866         if ( style.IsDefault() )
1867         {
1868             // nothing to do
1869             return true;
1870         }
1871 #ifdef __WXGTK20__
1872         gint l = gtk_text_buffer_get_char_count( m_buffer );
1873
1874         wxCHECK_MSG( start >= 0 && end <= l, false,
1875                      _T("invalid range in wxTextCtrl::SetStyle") );
1876
1877         GtkTextIter starti, endi;
1878         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1879         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1880
1881         // use the attributes from style which are set in it and fall back
1882         // first to the default style and then to the text control default
1883         // colours for the others
1884         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1885
1886         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1887
1888         return true;
1889 #else
1890         // VERY dirty way to do that - removes the required text and re-adds it
1891         // with styling (FIXME)
1892
1893         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1894
1895         wxCHECK_MSG( start >= 0 && end <= l, false,
1896                      _T("invalid range in wxTextCtrl::SetStyle") );
1897
1898         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1899         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1900         wxString tmp(text,*wxConvCurrent);
1901         g_free( text );
1902
1903         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1904         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1905
1906 #if wxUSE_UNICODE
1907         wxWX2MBbuf buf = tmp.mbc_str();
1908         const char *txt = buf;
1909         size_t txtlen = strlen(buf);
1910 #else
1911         const char *txt = tmp;
1912         size_t txtlen = tmp.length();
1913 #endif
1914
1915         // use the attributes from style which are set in it and fall back
1916         // first to the default style and then to the text control default
1917         // colours for the others
1918         wxGtkTextInsert(m_text,
1919                         wxTextAttr::Combine(style, m_defaultStyle, this),
1920                         txt,
1921                         txtlen);
1922
1923         /* does not seem to help under GTK+ 1.2 !!!
1924         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1925         SetInsertionPoint( old_pos );
1926 #endif
1927         return true;
1928     }
1929     else // singe line
1930     {
1931         // cannot do this for GTK+'s Entry widget
1932         return false;
1933     }
1934 }
1935
1936 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1937 {
1938     gtk_widget_modify_style(m_text, style);
1939 }
1940
1941 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1942 {
1943     Cut();
1944 }
1945
1946 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1947 {
1948     Copy();
1949 }
1950
1951 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1952 {
1953     Paste();
1954 }
1955
1956 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1957 {
1958     Undo();
1959 }
1960
1961 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1962 {
1963     Redo();
1964 }
1965
1966 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1967 {
1968     event.Enable( CanCut() );
1969 }
1970
1971 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1972 {
1973     event.Enable( CanCopy() );
1974 }
1975
1976 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1977 {
1978     event.Enable( CanPaste() );
1979 }
1980
1981 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1982 {
1983     event.Enable( CanUndo() );
1984 }
1985
1986 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1987 {
1988     event.Enable( CanRedo() );
1989 }
1990
1991 void wxTextCtrl::OnInternalIdle()
1992 {
1993     wxCursor cursor = m_cursor;
1994     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1995
1996     if (cursor.Ok())
1997     {
1998 #ifndef __WXGTK20__
1999         GdkWindow *window = (GdkWindow*) NULL;
2000         if (HasFlag(wxTE_MULTILINE))
2001             window = GTK_TEXT(m_text)->text_area;
2002         else
2003             window = GTK_ENTRY(m_text)->text_area;
2004
2005         if (window)
2006             gdk_window_set_cursor( window, cursor.GetCursor() );
2007
2008         if (!g_globalCursor.Ok())
2009             cursor = *wxSTANDARD_CURSOR;
2010
2011         window = m_widget->window;
2012         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2013             gdk_window_set_cursor( window, cursor.GetCursor() );
2014 #endif
2015     }
2016
2017     if (g_delayedFocus == this)
2018     {
2019         if (GTK_WIDGET_REALIZED(m_widget))
2020         {
2021             gtk_widget_grab_focus( m_widget );
2022             g_delayedFocus = NULL;
2023         }
2024     }
2025
2026     if (wxUpdateUIEvent::CanUpdate(this))
2027         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2028 }
2029
2030 wxSize wxTextCtrl::DoGetBestSize() const
2031 {
2032     // FIXME should be different for multi-line controls...
2033     wxSize ret( wxControl::DoGetBestSize() );
2034     wxSize best(80, ret.y);
2035     CacheBestSize(best);
2036     return best;
2037 }
2038
2039 // ----------------------------------------------------------------------------
2040 // freeze/thaw
2041 // ----------------------------------------------------------------------------
2042
2043 void wxTextCtrl::Freeze()
2044 {
2045     if ( HasFlag(wxTE_MULTILINE) )
2046     {
2047 #ifdef __WXGTK20__
2048         if ( !m_frozenness++ )
2049         {
2050             // freeze textview updates and remove buffer
2051             g_signal_connect( G_OBJECT(m_text), "expose_event",
2052                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2053             g_signal_connect( G_OBJECT(m_widget), "expose_event",
2054                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2055             gtk_widget_set_sensitive(m_widget, false);
2056             g_object_ref(m_buffer);
2057             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2058     }
2059 #else
2060         gtk_text_freeze(GTK_TEXT(m_text));
2061 #endif
2062     }
2063 }
2064
2065 void wxTextCtrl::Thaw()
2066 {
2067     if ( HasFlag(wxTE_MULTILINE) )
2068     {
2069 #ifdef __WXGTK20__
2070         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2071
2072         if ( !--m_frozenness )
2073         {
2074             // Reattach buffer and thaw textview updates
2075             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2076             g_object_unref(m_buffer);
2077             gtk_widget_set_sensitive(m_widget, true);
2078             g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2079             g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2080         }
2081 #else
2082         GTK_TEXT(m_text)->vadj->value = 0.0;
2083
2084         gtk_text_thaw(GTK_TEXT(m_text));
2085 #endif
2086     }
2087 }
2088
2089 // ----------------------------------------------------------------------------
2090 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2091 // ----------------------------------------------------------------------------
2092
2093 #ifdef __WXGTK20__
2094
2095 // FIXME: when dragging on a link the sample gets an "Unknown event".
2096 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2097 // a buggy sample, or something else
2098 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2099 {
2100     event.Skip();
2101     if(!(m_windowStyle & wxTE_AUTO_URL))
2102         return;
2103
2104     gint x, y;
2105     GtkTextIter start, end;
2106     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2107                                                 "wxUrl");
2108
2109     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2110                                           event.GetX(), event.GetY(), &x, &y);
2111
2112     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2113     if (!gtk_text_iter_has_tag(&end, tag))
2114     {
2115         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2116                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2117         return;
2118     }
2119
2120     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2121                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2122
2123     start = end;
2124     if(!gtk_text_iter_begins_tag(&start, tag))
2125         gtk_text_iter_backward_to_tag_toggle(&start, tag);
2126     if(!gtk_text_iter_ends_tag(&end, tag))
2127         gtk_text_iter_forward_to_tag_toggle(&end, tag);
2128
2129     // Native context menu is probably not desired on an URL.
2130     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2131     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2132         event.Skip(false);
2133
2134     wxTextUrlEvent url_event(m_windowId, event,
2135                              gtk_text_iter_get_offset(&start),
2136                              gtk_text_iter_get_offset(&end));
2137
2138     InitCommandEvent(url_event);
2139     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2140     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2141     GetEventHandler()->ProcessEvent(url_event);
2142 }
2143 #endif // gtk2
2144
2145 // ----------------------------------------------------------------------------
2146 // scrolling
2147 // ----------------------------------------------------------------------------
2148
2149 GtkAdjustment *wxTextCtrl::GetVAdj() const
2150 {
2151     if ( !IsMultiLine() )
2152         return NULL;
2153
2154 #ifdef __WXGTK20__
2155     return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2156 #else
2157     return GTK_TEXT(m_text)->vadj;
2158 #endif
2159 }
2160
2161 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2162 {
2163     float value = adj->value + diff;
2164
2165     if ( value < 0 )
2166         value = 0;
2167
2168     float upper = adj->upper - adj->page_size;
2169     if ( value > upper )
2170         value = upper;
2171
2172     // did we noticeably change the scroll position?
2173     if ( fabs(adj->value - value) < 0.2 )
2174     {
2175         // well, this is what Robert does in wxScrollBar, so it must be good...
2176         return false;
2177     }
2178
2179     adj->value = value;
2180
2181 #ifdef __WXGTK20__
2182     gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2183 #else
2184     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2185 #endif
2186
2187     return true;
2188 }
2189
2190 bool wxTextCtrl::ScrollLines(int lines)
2191 {
2192     GtkAdjustment *adj = GetVAdj();
2193     if ( !adj )
2194         return false;
2195
2196 #ifdef __WXGTK20__
2197     int diff = (int)ceil(lines*adj->step_increment);
2198 #else
2199     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2200     int diff = 10*lines;
2201 #endif
2202
2203     return DoScroll(adj, diff);
2204 }
2205
2206 bool wxTextCtrl::ScrollPages(int pages)
2207 {
2208     GtkAdjustment *adj = GetVAdj();
2209     if ( !adj )
2210         return false;
2211
2212     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2213 }
2214
2215
2216 // static
2217 wxVisualAttributes
2218 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2219 {
2220     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2221 }