src/gtk1/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         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
 911
 912 #else
 913         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 914         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 915         len = 0;
 916         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 917 #endif
 918     }
 919     else
 920     {
 921         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 922     }
 923
 924     // GRG, Jun/2000: Changed this after a lot of discussion in
 925     //   the lists. wxWidgets 2.2 will have a set of flags to
 926     //   customize this behaviour.
 927     SetInsertionPoint(0);
 928
 929     m_modified = false;
 930 }
 931
 932 void wxTextCtrl::WriteText( const wxString &text )
 933 {
 934     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 935
 936     if ( text.empty() )
 937         return;
 938
 939     // gtk_text_changed_callback() will set m_modified to true but m_modified
 940     // shouldn't be changed by the program writing to the text control itself,
 941     // so save the old value and restore when we're done
 942     bool oldModified = m_modified;
 943
 944     if ( m_windowStyle & wxTE_MULTILINE )
 945     {
 946 #ifdef __WXGTK20__
 947
 948 #if wxUSE_UNICODE
 949         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 950 #else
 951         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 952 #endif
 953         if ( !buffer )
 954         {
 955             // what else can we do? at least don't crash...
 956             return;
 957         }
 958
 959         // TODO: Call whatever is needed to delete the selection.
 960         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
 961
 962         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 963         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 964         if ( adj->value == adj->upper - adj->page_size )
 965         {
 966             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 967                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
 968         }
 969 #else // GTK 1.x
 970         // After cursor movements, gtk_text_get_point() is wrong by one.
 971         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
 972
 973         // always use m_defaultStyle, even if it is empty as otherwise
 974         // resetting the style and appending some more text wouldn't work: if
 975         // we don't specify the style explicitly, the old style would be used
 976         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 977         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
 978
 979         // we called wxGtkTextInsert with correct font, no need to do anything
 980         // in UpdateFontIfNeeded() any longer
 981         if ( !text.empty() )
 982         {
 983             SetUpdateFont(false);
 984         }
 985
 986         // Bring editable's cursor back uptodate.
 987         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 988 #endif // GTK 1.x/2.0
 989     }
 990     else // single line
 991     {
 992         // First remove the selection if there is one
 993         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 994
 995         // This moves the cursor pos to behind the inserted text.
 996         gint len = GET_EDITABLE_POS(m_text);
 997
 998 #ifdef __WXGTK20__
 999
1000 #if wxUSE_UNICODE
1001         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
1002 #else
1003         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
1004 #endif
1005         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1006
1007 #else
1008         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
1009 #endif
1010
1011         // Bring entry's cursor uptodate.
1012         gtk_entry_set_position( GTK_ENTRY(m_text), len );
1013     }
1014
1015     m_modified = oldModified;
1016 }
1017
1018 void wxTextCtrl::AppendText( const wxString &text )
1019 {
1020     SetInsertionPointEnd();
1021     WriteText( text );
1022 }
1023
1024 wxString wxTextCtrl::GetLineText( long lineNo ) const
1025 {
1026     if (m_windowStyle & wxTE_MULTILINE)
1027     {
1028 #ifndef __WXGTK20__
1029         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1030         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1031
1032         if (text)
1033         {
1034             wxString buf(wxT(""));
1035             long i;
1036             int currentLine = 0;
1037             for (i = 0; currentLine != lineNo && text[i]; i++ )
1038                 if (text[i] == '\n')
1039             currentLine++;
1040             // Now get the text
1041             int j;
1042             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
1043                 buf += text[i];
1044
1045             g_free( text );
1046             return buf;
1047         }
1048         else
1049         {
1050             return wxEmptyString;
1051         }
1052 #else
1053         GtkTextIter line;
1054         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1055         GtkTextIter end;
1056         gtk_text_buffer_get_end_iter(m_buffer,&end );
1057         gchar *text = gtk_text_buffer_get_text(m_buffer,&line,&end,TRUE);
1058         wxString result(wxGTK_CONV_BACK(text));
1059         g_free(text);
1060         return result.BeforeFirst(wxT('\n'));
1061 #endif
1062     }
1063     else
1064     {
1065         if (lineNo == 0) return GetValue();
1066         return wxEmptyString;
1067     }
1068 }
1069
1070 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1071 {
1072   /* If you implement this, don't forget to update the documentation!
1073    * (file docs/latex/wx/text.tex) */
1074     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1075 }
1076
1077 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1078 {
1079     if ( m_windowStyle & wxTE_MULTILINE )
1080     {
1081         wxString text = GetValue();
1082
1083         // cast to prevent warning. But pos really should've been unsigned.
1084         if( (unsigned long)pos > text.Len()  )
1085             return false;
1086
1087         *x=0;   // First Col
1088         *y=0;   // First Line
1089
1090         const wxChar* stop = text.c_str() + pos;
1091         for ( const wxChar *p = text.c_str(); p < stop; p++ )
1092         {
1093             if (*p == wxT('\n'))
1094             {
1095                 (*y)++;
1096                 *x=0;
1097             }
1098             else
1099                 (*x)++;
1100         }
1101     }
1102     else // single line control
1103     {
1104         if ( pos <= GTK_ENTRY(m_text)->text_length )
1105         {
1106             *y = 0;
1107             *x = pos;
1108         }
1109         else
1110         {
1111             // index out of bounds
1112             return false;
1113         }
1114     }
1115
1116     return true;
1117 }
1118
1119 long wxTextCtrl::XYToPosition(long x, long y ) const
1120 {
1121     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
1122
1123     long pos=0;
1124     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
1125
1126     pos += x;
1127     return pos;
1128 }
1129
1130 int wxTextCtrl::GetLineLength(long lineNo) const
1131 {
1132     wxString str = GetLineText (lineNo);
1133     return (int) str.Length();
1134 }
1135
1136 int wxTextCtrl::GetNumberOfLines() const
1137 {
1138     if (m_windowStyle & wxTE_MULTILINE)
1139     {
1140 #ifdef __WXGTK20__
1141         return gtk_text_buffer_get_line_count( m_buffer );
1142 #else
1143         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
1144         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
1145
1146         if (text)
1147         {
1148             int currentLine = 0;
1149             for (int i = 0; i < len; i++ )
1150             {
1151                 if (text[i] == '\n')
1152                     currentLine++;
1153             }
1154             g_free( text );
1155
1156             // currentLine is 0 based, add 1 to get number of lines
1157             return currentLine + 1;
1158         }
1159         else
1160         {
1161             return 0;
1162         }
1163 #endif
1164     }
1165     else
1166     {
1167         return 1;
1168     }
1169 }
1170
1171 void wxTextCtrl::SetInsertionPoint( long pos )
1172 {
1173     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1174
1175     if ( IsMultiLine() )
1176     {
1177 #ifdef __WXGTK20__
1178         GtkTextIter iter;
1179         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1180         gtk_text_buffer_place_cursor( m_buffer, &iter );
1181         gtk_text_view_scroll_mark_onscreen
1182         (
1183             GTK_TEXT_VIEW(m_text),
1184             gtk_text_buffer_get_insert( m_buffer )
1185         );
1186 #else // GTK+ 1.x
1187         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
1188           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1189
1190         /* we fake a set_point by inserting and deleting. as the user
1191            isn't supposed to get to know about this non-sense, we
1192            disconnect so that no events are sent to the user program. */
1193
1194         gint tmp = (gint)pos;
1195         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
1196         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
1197
1198         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
1199           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
1200
1201         // bring editable's cursor uptodate. Bug in GTK.
1202         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
1203 #endif // GTK+ 2/1
1204     }
1205     else
1206     {
1207         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
1208
1209         // Bring editable's cursor uptodate. Bug in GTK.
1210         SET_EDITABLE_POS(m_text, (guint32)pos);
1211     }
1212 }
1213
1214 void wxTextCtrl::SetInsertionPointEnd()
1215 {
1216     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1217
1218     if (m_windowStyle & wxTE_MULTILINE)
1219     {
1220 #ifdef __WXGTK20__
1221         GtkTextIter end;
1222         gtk_text_buffer_get_end_iter( m_buffer, &end );
1223         gtk_text_buffer_place_cursor( m_buffer, &end );
1224 #else
1225         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
1226 #endif
1227     }
1228     else
1229     {
1230         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
1231     }
1232 }
1233
1234 void wxTextCtrl::SetEditable( bool editable )
1235 {
1236     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1237
1238     if (m_windowStyle & wxTE_MULTILINE)
1239     {
1240 #ifdef __WXGTK20__
1241         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1242 #else
1243         gtk_text_set_editable( GTK_TEXT(m_text), editable );
1244 #endif
1245     }
1246     else
1247     {
1248         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
1249     }
1250 }
1251
1252 bool wxTextCtrl::Enable( bool enable )
1253 {
1254     if (!wxWindowBase::Enable(enable))
1255     {
1256         // nothing to do
1257         return false;
1258     }
1259
1260     if (m_windowStyle & wxTE_MULTILINE)
1261     {
1262 #ifdef __WXGTK20__
1263         SetEditable( enable );
1264 #else
1265         gtk_text_set_editable( GTK_TEXT(m_text), enable );
1266         OnParentEnable(enable);
1267 #endif
1268     }
1269     else
1270     {
1271         gtk_widget_set_sensitive( m_text, enable );
1272     }
1273
1274     return true;
1275 }
1276
1277 // wxGTK-specific: called recursively by Enable,
1278 // to give widgets an oppprtunity to correct their colours after they
1279 // have been changed by Enable
1280 void wxTextCtrl::OnParentEnable( bool enable )
1281 {
1282     // If we have a custom background colour, we use this colour in both
1283     // disabled and enabled mode, or we end up with a different colour under the
1284     // text.
1285     wxColour oldColour = GetBackgroundColour();
1286     if (oldColour.Ok())
1287     {
1288         // Need to set twice or it'll optimize the useful stuff out
1289         if (oldColour == * wxWHITE)
1290             SetBackgroundColour(*wxBLACK);
1291         else
1292             SetBackgroundColour(*wxWHITE);
1293         SetBackgroundColour(oldColour);
1294     }
1295 }
1296
1297 void wxTextCtrl::MarkDirty()
1298 {
1299     m_modified = true;
1300 }
1301
1302 void wxTextCtrl::DiscardEdits()
1303 {
1304     m_modified = false;
1305 }
1306
1307 // ----------------------------------------------------------------------------
1308 // max text length support
1309 // ----------------------------------------------------------------------------
1310
1311 void wxTextCtrl::IgnoreNextTextUpdate()
1312 {
1313     m_ignoreNextUpdate = true;
1314 }
1315
1316 bool wxTextCtrl::IgnoreTextUpdate()
1317 {
1318     if ( m_ignoreNextUpdate )
1319     {
1320         m_ignoreNextUpdate = false;
1321
1322         return true;
1323     }
1324
1325     return false;
1326 }
1327
1328 void wxTextCtrl::SetMaxLength(unsigned long len)
1329 {
1330     if ( !HasFlag(wxTE_MULTILINE) )
1331     {
1332         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1333
1334         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1335         // we had tried to enter more text than allowed by max text length and
1336         // the text wasn't really changed
1337         //
1338         // to detect this and generate TEXT_MAXLEN event instead of
1339         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1340         //
1341         // when max len is set to 0 we disconnect our handler as it means that
1342         // we shouldn't check anything any more
1343         if ( len )
1344         {
1345             gtk_signal_connect( GTK_OBJECT(m_text),
1346                                 "insert_text",
1347                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1348                                 (gpointer)this);
1349         }
1350         else // no checking
1351         {
1352             gtk_signal_disconnect_by_func
1353             (
1354                 GTK_OBJECT(m_text),
1355                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1356                 (gpointer)this
1357             );
1358         }
1359     }
1360 }
1361
1362 void wxTextCtrl::SetSelection( long from, long to )
1363 {
1364     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1365
1366     if (from == -1 && to == -1)
1367     {
1368         from = 0;
1369         to = GetValue().Length();
1370     }
1371
1372 #ifndef __WXGTK20__
1373     if ( (m_windowStyle & wxTE_MULTILINE) &&
1374          !GTK_TEXT(m_text)->line_start_cache )
1375     {
1376         // tell the programmer that it didn't work
1377         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1378         return;
1379     }
1380 #endif
1381
1382     if (m_windowStyle & wxTE_MULTILINE)
1383     {
1384 #ifdef __WXGTK20__
1385         GtkTextIter fromi, toi;
1386         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1387         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1388
1389         gtk_text_buffer_place_cursor( m_buffer, &toi );
1390         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1391 #else
1392         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1393 #endif
1394     }
1395     else
1396     {
1397         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1398     }
1399 }
1400
1401 void wxTextCtrl::ShowPosition( long pos )
1402 {
1403     if (m_windowStyle & wxTE_MULTILINE)
1404     {
1405 #ifdef __WXGTK20__
1406         GtkTextIter iter;
1407         gtk_text_buffer_get_start_iter( m_buffer, &iter );
1408         gtk_text_iter_set_offset( &iter, pos );
1409         GtkTextMark *mark = gtk_text_buffer_create_mark( m_buffer, NULL, &iter, TRUE );
1410         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1411 #else // GTK 1.x
1412         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1413         float totalLines =  (float) GetNumberOfLines();
1414         long posX;
1415         long posY;
1416         PositionToXY(pos, &posX, &posY);
1417         float posLine = (float) posY;
1418         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1419         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1420 #endif // GTK 1.x/2.x
1421     }
1422 }
1423
1424 #ifdef __WXGTK20__
1425
1426 wxTextCtrlHitTestResult
1427 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1428 {
1429     if ( !IsMultiLine() )
1430     {
1431         // not supported
1432         return wxTE_HT_UNKNOWN;
1433     }
1434
1435     int x, y;
1436     gtk_text_view_window_to_buffer_coords
1437     (
1438         GTK_TEXT_VIEW(m_text),
1439         GTK_TEXT_WINDOW_TEXT,
1440         pt.x, pt.y,
1441         &x, &y
1442     );
1443
1444     GtkTextIter iter;
1445     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1446     if ( pos )
1447         *pos = gtk_text_iter_get_offset(&iter);
1448
1449     return wxTE_HT_ON_TEXT;
1450 }
1451
1452 #endif // __WXGTK20__
1453
1454 long wxTextCtrl::GetInsertionPoint() const
1455 {
1456     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1457
1458 #ifdef __WXGTK20__
1459     if (m_windowStyle & wxTE_MULTILINE)
1460     {
1461         // There is no direct accessor for the cursor, but
1462         // internally, the cursor is the "mark" called
1463         // "insert" in the text view's btree structure.
1464
1465         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1466         GtkTextIter cursor;
1467         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1468
1469         return gtk_text_iter_get_offset( &cursor );
1470     }
1471     else
1472 #endif
1473     {
1474     return (long) GET_EDITABLE_POS(m_text);
1475     }
1476 }
1477
1478 wxTextPos wxTextCtrl::GetLastPosition() const
1479 {
1480     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1481
1482     int pos = 0;
1483
1484     if (m_windowStyle & wxTE_MULTILINE)
1485     {
1486 #ifdef __WXGTK20__
1487         GtkTextIter end;
1488         gtk_text_buffer_get_end_iter( m_buffer, &end );
1489
1490         pos = gtk_text_iter_get_offset( &end );
1491 #else
1492         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1493 #endif
1494     }
1495     else
1496     {
1497         pos = GTK_ENTRY(m_text)->text_length;
1498     }
1499
1500     return (long)pos;
1501 }
1502
1503 void wxTextCtrl::Remove( long from, long to )
1504 {
1505     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1506
1507 #ifdef __WXGTK20__
1508     if (m_windowStyle & wxTE_MULTILINE)
1509     {
1510         GtkTextIter fromi, toi;
1511         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1512         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1513
1514         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1515     }
1516     else // single line
1517 #endif
1518     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1519 }
1520
1521 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1522 {
1523     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1524
1525     Remove( from, to );
1526
1527     if (!value.empty())
1528     {
1529 #ifdef __WXGTK20__
1530         SetInsertionPoint( from );
1531         WriteText( value );
1532 #else // GTK 1.x
1533         gint pos = (gint)from;
1534 #if wxUSE_UNICODE
1535         wxWX2MBbuf buf = value.mbc_str();
1536         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1537 #else
1538         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1539 #endif // wxUSE_UNICODE
1540 #endif // GTK 1.x/2.x
1541     }
1542 }
1543
1544 void wxTextCtrl::Cut()
1545 {
1546     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1547
1548 #ifdef __WXGTK20__
1549     if (m_windowStyle & wxTE_MULTILINE)
1550         g_signal_emit_by_name(m_text, "cut-clipboard");
1551     else
1552 #endif
1553         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1554 }
1555
1556 void wxTextCtrl::Copy()
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, "copy-clipboard");
1563     else
1564 #endif
1565         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1566 }
1567
1568 void wxTextCtrl::Paste()
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, "paste-clipboard");
1575     else
1576 #endif
1577         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1578 }
1579
1580 // Undo/redo
1581 void wxTextCtrl::Undo()
1582 {
1583     // TODO
1584     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1585 }
1586
1587 void wxTextCtrl::Redo()
1588 {
1589     // TODO
1590     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1591 }
1592
1593 bool wxTextCtrl::CanUndo() const
1594 {
1595     // TODO
1596     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1597     return false;
1598 }
1599
1600 bool wxTextCtrl::CanRedo() const
1601 {
1602     // TODO
1603     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1604     return false;
1605 }
1606
1607 // If the return values from and to are the same, there is no
1608 // selection.
1609 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1610 {
1611     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1612
1613     gint from = -1;
1614     gint to = -1;
1615     bool haveSelection = false;
1616
1617 #ifdef __WXGTK20__
1618      if (m_windowStyle & wxTE_MULTILINE)
1619      {
1620          GtkTextIter ifrom, ito;
1621          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1622          {
1623              haveSelection = true;
1624              from = gtk_text_iter_get_offset(&ifrom);
1625              to = gtk_text_iter_get_offset(&ito);
1626          }
1627      }
1628      else  // not multi-line
1629      {
1630          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1631                                                  &from, &to) )
1632          {
1633              haveSelection = true;
1634          }
1635      }
1636 #else //  not GTK2
1637      if ( (GTK_EDITABLE(m_text)->has_selection) )
1638      {
1639          haveSelection = true;
1640          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1641          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1642      }
1643 #endif
1644
1645      if (! haveSelection )
1646           from = to = GetInsertionPoint();
1647
1648      if ( from > to )
1649      {
1650          // exchange them to be compatible with wxMSW
1651          gint tmp = from;
1652          from = to;
1653          to = tmp;
1654      }
1655
1656     if ( fromOut )
1657         *fromOut = from;
1658     if ( toOut )
1659         *toOut = to;
1660 }
1661
1662
1663 bool wxTextCtrl::IsEditable() const
1664 {
1665     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1666
1667 #ifdef __WXGTK20__
1668     if (m_windowStyle & wxTE_MULTILINE)
1669     {
1670         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1671     }
1672     else
1673     {
1674         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1675     }
1676 #else
1677     return GTK_EDITABLE(m_text)->editable;
1678 #endif
1679 }
1680
1681 bool wxTextCtrl::IsModified() const
1682 {
1683     return m_modified;
1684 }
1685
1686 void wxTextCtrl::Clear()
1687 {
1688     SetValue( wxT("") );
1689 }
1690
1691 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1692 {
1693     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1694
1695     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1696     {
1697         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1698         event.SetEventObject(this);
1699         event.SetString(GetValue());
1700         if (GetEventHandler()->ProcessEvent(event)) return;
1701     }
1702
1703     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1704     {
1705         // This will invoke the dialog default action, such
1706         // as the clicking the default button.
1707
1708         wxWindow *top_frame = m_parent;
1709         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1710             top_frame = top_frame->GetParent();
1711
1712         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1713         {
1714             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1715
1716             if (window->default_widget)
1717             {
1718                 gtk_widget_activate (window->default_widget);
1719                 return;
1720             }
1721         }
1722     }
1723
1724     key_event.Skip();
1725 }
1726
1727 GtkWidget* wxTextCtrl::GetConnectWidget()
1728 {
1729     return GTK_WIDGET(m_text);
1730 }
1731
1732 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1733 {
1734     if (m_windowStyle & wxTE_MULTILINE)
1735     {
1736 #ifdef __WXGTK20__
1737         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1738 #else
1739         return (window == GTK_TEXT(m_text)->text_area);
1740 #endif
1741     }
1742     else
1743     {
1744         return (window == GTK_ENTRY(m_text)->text_area);
1745     }
1746 }
1747
1748 // the font will change for subsequent text insertiongs
1749 bool wxTextCtrl::SetFont( const wxFont &font )
1750 {
1751     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1752
1753     if ( !wxTextCtrlBase::SetFont(font) )
1754     {
1755         // font didn't change, nothing to do
1756         return false;
1757     }
1758
1759     if ( m_windowStyle & wxTE_MULTILINE )
1760     {
1761         SetUpdateFont(true);
1762
1763         m_defaultStyle.SetFont(font);
1764
1765         ChangeFontGlobally();
1766     }
1767
1768     return true;
1769 }
1770
1771 void wxTextCtrl::ChangeFontGlobally()
1772 {
1773     // this method is very inefficient and hence should be called as rarely as
1774     // possible!
1775     //
1776     // TODO: it can be implemented much more efficiently for GTK2
1777 #ifndef __WXGTK20__
1778     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1779
1780                   _T("shouldn't be called for single line controls") );
1781 #else
1782     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE),
1783                   _T("shouldn't be called for single line controls") );
1784 #endif
1785
1786     wxString value = GetValue();
1787     if ( !value.empty() )
1788     {
1789         SetUpdateFont(false);
1790
1791         Clear();
1792         AppendText(value);
1793     }
1794 }
1795
1796 #ifndef __WXGTK20__
1797
1798 void wxTextCtrl::UpdateFontIfNeeded()
1799 {
1800     if ( m_updateFont )
1801         ChangeFontGlobally();
1802 }
1803
1804 #endif // GTK+ 1.x
1805
1806 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1807 {
1808     if ( !wxControl::SetForegroundColour(colour) )
1809         return false;
1810
1811     // update default fg colour too
1812     m_defaultStyle.SetTextColour(colour);
1813
1814     return true;
1815 }
1816
1817 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1818 {
1819     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1820
1821     if ( !wxControl::SetBackgroundColour( colour ) )
1822         return false;
1823
1824 #ifndef __WXGTK20__
1825     if (!m_widget->window)
1826         return false;
1827 #endif
1828
1829     if (!m_backgroundColour.Ok())
1830         return false;
1831
1832     if (m_windowStyle & wxTE_MULTILINE)
1833     {
1834 #ifndef __WXGTK20__
1835         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1836         if (!window)
1837             return false;
1838         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1839         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1840         gdk_window_clear( window );
1841 #endif
1842     }
1843
1844     // change active background color too
1845     m_defaultStyle.SetBackgroundColour( colour );
1846
1847     return true;
1848 }
1849
1850 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1851 {
1852     if ( m_windowStyle & wxTE_MULTILINE )
1853     {
1854         if ( style.IsDefault() )
1855         {
1856             // nothing to do
1857             return true;
1858         }
1859 #ifdef __WXGTK20__
1860         gint l = gtk_text_buffer_get_char_count( m_buffer );
1861
1862         wxCHECK_MSG( start >= 0 && end <= l, false,
1863                      _T("invalid range in wxTextCtrl::SetStyle") );
1864
1865         GtkTextIter starti, endi;
1866         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1867         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1868
1869         // use the attributes from style which are set in it and fall back
1870         // first to the default style and then to the text control default
1871         // colours for the others
1872         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1873
1874         wxGtkTextApplyTagsFromAttr( m_buffer, attr, &starti, &endi );
1875
1876         return true;
1877 #else
1878         // VERY dirty way to do that - removes the required text and re-adds it
1879         // with styling (FIXME)
1880
1881         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1882
1883         wxCHECK_MSG( start >= 0 && end <= l, false,
1884                      _T("invalid range in wxTextCtrl::SetStyle") );
1885
1886         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1887         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1888         wxString tmp(text,*wxConvCurrent);
1889         g_free( text );
1890
1891         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1892         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1893
1894 #if wxUSE_UNICODE
1895         wxWX2MBbuf buf = tmp.mbc_str();
1896         const char *txt = buf;
1897         size_t txtlen = strlen(buf);
1898 #else
1899         const char *txt = tmp;
1900         size_t txtlen = tmp.length();
1901 #endif
1902
1903         // use the attributes from style which are set in it and fall back
1904         // first to the default style and then to the text control default
1905         // colours for the others
1906         wxGtkTextInsert(m_text,
1907                         wxTextAttr::Combine(style, m_defaultStyle, this),
1908                         txt,
1909                         txtlen);
1910
1911         /* does not seem to help under GTK+ 1.2 !!!
1912         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1913         SetInsertionPoint( old_pos );
1914 #endif
1915         return true;
1916     }
1917     else // singe line
1918     {
1919         // cannot do this for GTK+'s Entry widget
1920         return false;
1921     }
1922 }
1923
1924 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1925 {
1926     gtk_widget_modify_style(m_text, style);
1927 }
1928
1929 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1930 {
1931     Cut();
1932 }
1933
1934 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1935 {
1936     Copy();
1937 }
1938
1939 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1940 {
1941     Paste();
1942 }
1943
1944 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1945 {
1946     Undo();
1947 }
1948
1949 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1950 {
1951     Redo();
1952 }
1953
1954 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1955 {
1956     event.Enable( CanCut() );
1957 }
1958
1959 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1960 {
1961     event.Enable( CanCopy() );
1962 }
1963
1964 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1965 {
1966     event.Enable( CanPaste() );
1967 }
1968
1969 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1970 {
1971     event.Enable( CanUndo() );
1972 }
1973
1974 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1975 {
1976     event.Enable( CanRedo() );
1977 }
1978
1979 void wxTextCtrl::OnInternalIdle()
1980 {
1981     wxCursor cursor = m_cursor;
1982     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1983
1984     if (cursor.Ok())
1985     {
1986 #ifndef __WXGTK20__
1987         GdkWindow *window = (GdkWindow*) NULL;
1988         if (HasFlag(wxTE_MULTILINE))
1989             window = GTK_TEXT(m_text)->text_area;
1990         else
1991             window = GTK_ENTRY(m_text)->text_area;
1992
1993         if (window)
1994             gdk_window_set_cursor( window, cursor.GetCursor() );
1995
1996         if (!g_globalCursor.Ok())
1997             cursor = *wxSTANDARD_CURSOR;
1998
1999         window = m_widget->window;
2000         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
2001             gdk_window_set_cursor( window, cursor.GetCursor() );
2002 #endif
2003     }
2004
2005     if (g_delayedFocus == this)
2006     {
2007         if (GTK_WIDGET_REALIZED(m_widget))
2008         {
2009             gtk_widget_grab_focus( m_widget );
2010             g_delayedFocus = NULL;
2011         }
2012     }
2013
2014     if (wxUpdateUIEvent::CanUpdate(this))
2015         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
2016 }
2017
2018 wxSize wxTextCtrl::DoGetBestSize() const
2019 {
2020     // FIXME should be different for multi-line controls...
2021     wxSize ret( wxControl::DoGetBestSize() );
2022     wxSize best(80, ret.y);
2023     CacheBestSize(best);
2024     return best;
2025 }
2026
2027 // ----------------------------------------------------------------------------
2028 // freeze/thaw
2029 // ----------------------------------------------------------------------------
2030
2031 void wxTextCtrl::Freeze()
2032 {
2033     if ( HasFlag(wxTE_MULTILINE) )
2034     {
2035 #ifdef __WXGTK20__
2036         if ( !m_frozenness++ )
2037         {
2038             // freeze textview updates and remove buffer
2039             g_signal_connect( G_OBJECT(m_text), "expose_event",
2040                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2041             g_signal_connect( G_OBJECT(m_widget), "expose_event",
2042                 GTK_SIGNAL_FUNC(gtk_text_exposed_callback), (gpointer)this);
2043             gtk_widget_set_sensitive(m_widget, false);
2044             g_object_ref(m_buffer);
2045             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), gtk_text_buffer_new(NULL));
2046     }
2047 #else
2048         gtk_text_freeze(GTK_TEXT(m_text));
2049 #endif
2050     }
2051 }
2052
2053 void wxTextCtrl::Thaw()
2054 {
2055     if ( HasFlag(wxTE_MULTILINE) )
2056     {
2057 #ifdef __WXGTK20__
2058         wxASSERT_MSG( m_frozenness > 0, _T("Thaw() without matching Freeze()") );
2059
2060         if ( !--m_frozenness )
2061         {
2062             // Reattach buffer and thaw textview updates
2063             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
2064             g_object_unref(m_buffer);
2065             gtk_widget_set_sensitive(m_widget, true);
2066             g_signal_handlers_disconnect_by_func(m_widget, (gpointer)gtk_text_exposed_callback, this);
2067             g_signal_handlers_disconnect_by_func(m_text, (gpointer)gtk_text_exposed_callback, this);
2068         }
2069 #else
2070         GTK_TEXT(m_text)->vadj->value = 0.0;
2071
2072         gtk_text_thaw(GTK_TEXT(m_text));
2073 #endif
2074     }
2075 }
2076
2077 // ----------------------------------------------------------------------------
2078 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
2079 // ----------------------------------------------------------------------------
2080
2081 #ifdef __WXGTK20__
2082
2083 // FIXME: when dragging on a link the sample gets an "Unknown event".
2084 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
2085 // a buggy sample, or something else
2086 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
2087 {
2088     event.Skip();
2089     if(!(m_windowStyle & wxTE_AUTO_URL))
2090         return;
2091
2092     gint x, y;
2093     GtkTextIter start, end;
2094     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
2095                                                 "wxUrl");
2096
2097     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
2098                                           event.GetX(), event.GetY(), &x, &y);
2099
2100     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
2101     if (!gtk_text_iter_has_tag(&end, tag))
2102     {
2103         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2104                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
2105         return;
2106     }
2107
2108     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
2109                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
2110
2111     start = end;
2112     if(!gtk_text_iter_begins_tag(&start, tag))
2113         gtk_text_iter_backward_to_tag_toggle(&start, tag);
2114     if(!gtk_text_iter_ends_tag(&end, tag))
2115         gtk_text_iter_forward_to_tag_toggle(&end, tag);
2116
2117     // Native context menu is probably not desired on an URL.
2118     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
2119     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
2120         event.Skip(false);
2121
2122     wxTextUrlEvent url_event(m_windowId, event,
2123                              gtk_text_iter_get_offset(&start),
2124                              gtk_text_iter_get_offset(&end));
2125
2126     InitCommandEvent(url_event);
2127     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
2128     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
2129     GetEventHandler()->ProcessEvent(url_event);
2130 }
2131 #endif // gtk2
2132
2133 // ----------------------------------------------------------------------------
2134 // scrolling
2135 // ----------------------------------------------------------------------------
2136
2137 GtkAdjustment *wxTextCtrl::GetVAdj() const
2138 {
2139     if ( !IsMultiLine() )
2140         return NULL;
2141
2142 #ifdef __WXGTK20__
2143     return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
2144 #else
2145     return GTK_TEXT(m_text)->vadj;
2146 #endif
2147 }
2148
2149 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
2150 {
2151     float value = adj->value + diff;
2152
2153     if ( value < 0 )
2154         value = 0;
2155
2156     float upper = adj->upper - adj->page_size;
2157     if ( value > upper )
2158         value = upper;
2159
2160     // did we noticeably change the scroll position?
2161     if ( fabs(adj->value - value) < 0.2 )
2162     {
2163         // well, this is what Robert does in wxScrollBar, so it must be good...
2164         return false;
2165     }
2166
2167     adj->value = value;
2168
2169 #ifdef __WXGTK20__
2170     gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
2171 #else
2172     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
2173 #endif
2174
2175     return true;
2176 }
2177
2178 bool wxTextCtrl::ScrollLines(int lines)
2179 {
2180     GtkAdjustment *adj = GetVAdj();
2181     if ( !adj )
2182         return false;
2183
2184 #ifdef __WXGTK20__
2185     int diff = (int)ceil(lines*adj->step_increment);
2186 #else
2187     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
2188     int diff = 10*lines;
2189 #endif
2190
2191     return DoScroll(adj, diff);
2192 }
2193
2194 bool wxTextCtrl::ScrollPages(int pages)
2195 {
2196     GtkAdjustment *adj = GetVAdj();
2197     if ( !adj )
2198         return false;
2199
2200     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
2201 }
2202
2203
2204 // static
2205 wxVisualAttributes
2206 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
2207 {
2208     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
2209 }