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