src/gtk/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "textctrl.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/textctrl.h"
  18 #include "wx/utils.h"
  19 #include "wx/intl.h"
  20 #include "wx/log.h"
  21 #include "wx/settings.h"
  22 #include "wx/panel.h"
  23 #include "wx/strconv.h"
  24 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  25
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <ctype.h>
  29 #include <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
 351     SetFont( parent->GetFont() );
 352
 353     wxSize size_best( DoGetBestSize() );
 354     wxSize new_size( size );
 355     if (new_size.x == -1)
 356         new_size.x = size_best.x;
 357     if (new_size.y == -1)
 358         new_size.y = size_best.y;
 359     if ((new_size.x != size.x) || (new_size.y != size.y))
 360         SetSize( new_size.x, new_size.y );
 361
 362     if (multi_line)
 363         gtk_widget_show(m_text);
 364
 365 #ifndef __WXGTK20__
 366     if (multi_line)
 367     {
 368         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 369           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 370
 371         // only initialize gs_gtk_text_draw once, starting from the next the
 372         // klass::draw will already be wxgtk_text_draw
 373         if ( !gs_gtk_text_draw )
 374         {
 375             GtkDrawCallback&
 376                 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
 377
 378             gs_gtk_text_draw = draw;
 379
 380             draw = wxgtk_text_draw;
 381         }
 382     }
 383 #endif // GTK+ 1.x
 384
 385     if (!value.IsEmpty())
 386     {
 387 #ifdef __WXGTK20__
 388         SetValue( value );
 389 #else
 390
 391 #if !GTK_CHECK_VERSION(1, 2, 0)
 392         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 393         // gtk_editable_insert_text()
 394         gtk_widget_realize(m_text);
 395 #endif // GTK 1.0
 396
 397         gint tmp = 0;
 398 #if wxUSE_UNICODE
 399         wxWX2MBbuf val = value.mbc_str();
 400         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 401 #else
 402         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 403 #endif
 404
 405         if (multi_line)
 406         {
 407             // Bring editable's cursor uptodate. Bug in GTK.
 408             SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 409         }
 410
 411 #endif
 412     }
 413
 414     if (style & wxTE_PASSWORD)
 415     {
 416         if (!multi_line)
 417             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 418     }
 419
 420     if (style & wxTE_READONLY)
 421     {
 422         if (!multi_line)
 423             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 424 #ifdef __WXGTK20__
 425         else
 426             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 427     }
 428 #else
 429     }
 430     else
 431     {
 432         if (multi_line)
 433             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 434     }
 435 #endif
 436
 437     // We want to be notified about text changes.
 438 #ifdef __WXGTK20__
 439     if (multi_line)
 440     {
 441         g_signal_connect( G_OBJECT(buffer), "changed",
 442             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 443     }
 444     else
 445 #endif
 446     {
 447     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 448        GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 449     }
 450
 451     // we don't set a valid background colour, because the window
 452     // manager should use a default one
 453     m_backgroundColour = wxColour();
 454
 455     wxColour colFg = parent->GetForegroundColour();
 456     SetForegroundColour( colFg );
 457
 458     m_cursor = wxCursor( wxCURSOR_IBEAM );
 459
 460     wxTextAttr attrDef( colFg, m_backgroundColour, parent->GetFont() );
 461     SetDefaultStyle( attrDef );
 462
 463     Show( TRUE );
 464
 465     return TRUE;
 466 }
 467
 468 void wxTextCtrl::CalculateScrollbar()
 469 {
 470 #ifndef __WXGTK20__
 471     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 472
 473     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 474
 475     if (adj->upper - adj->page_size < 0.8)
 476     {
 477         if (m_vScrollbarVisible)
 478         {
 479             gtk_widget_hide( m_vScrollbar );
 480             m_vScrollbarVisible = FALSE;
 481         }
 482     }
 483     else
 484     {
 485         if (!m_vScrollbarVisible)
 486         {
 487             gtk_widget_show( m_vScrollbar );
 488             m_vScrollbarVisible = TRUE;
 489         }
 490     }
 491 #endif
 492 }
 493
 494 wxString wxTextCtrl::GetValue() const
 495 {
 496     wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
 497
 498     wxString tmp;
 499     if (m_windowStyle & wxTE_MULTILINE)
 500     {
 501 #ifdef __WXGTK20__
 502         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 503
 504         GtkTextIter start;
 505         gtk_text_buffer_get_start_iter( text_buffer, &start );
 506         GtkTextIter end;
 507         gtk_text_buffer_get_end_iter( text_buffer, &end );
 508         gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
 509
 510 #if wxUSE_UNICODE
 511         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 512 #else
 513         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 514 #endif
 515         tmp = buffer;
 516
 517         g_free( text );
 518 #else
 519         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 520         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 521         tmp = text;
 522         g_free( text );
 523 #endif
 524     }
 525     else
 526     {
 527         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 528     }
 529
 530     return tmp;
 531 }
 532
 533 void wxTextCtrl::SetValue( const wxString &value )
 534 {
 535     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 536
 537     if (m_windowStyle & wxTE_MULTILINE)
 538     {
 539 #ifdef __WXGTK20__
 540
 541 #if wxUSE_UNICODE
 542         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 543 #else
 544         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 545 #endif
 546         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 547         gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
 548
 549 #else
 550         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 551         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 552         len = 0;
 553         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 554 #endif
 555     }
 556     else
 557     {
 558         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 559     }
 560
 561     // GRG, Jun/2000: Changed this after a lot of discussion in
 562     //   the lists. wxWindows 2.2 will have a set of flags to
 563     //   customize this behaviour.
 564     SetInsertionPoint(0);
 565
 566     m_modified = FALSE;
 567 }
 568
 569 void wxTextCtrl::WriteText( const wxString &text )
 570 {
 571     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 572
 573     if ( text.empty() )
 574         return;
 575
 576     if ( m_windowStyle & wxTE_MULTILINE )
 577     {
 578 #ifdef __WXGTK20__
 579
 580 #if wxUSE_UNICODE
 581         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 582 #else
 583         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 584 #endif
 585         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 586
 587         // TODO: Call whatever is needed to delete the selection.
 588         wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
 589
 590         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 591         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 592         if ( adj->value == adj->upper - adj->page_size )
 593         {
 594             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 595                     gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
 596         }
 597 #else // GTK 1.x
 598         // After cursor movements, gtk_text_get_point() is wrong by one.
 599         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
 600
 601         // always use m_defaultStyle, even if it is empty as otherwise
 602         // resetting the style and appending some more text wouldn't work: if
 603         // we don't specify the style explicitly, the old style would be used
 604         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 605         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
 606
 607         // Bring editable's cursor back uptodate.
 608         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 609 #endif // GTK 1.x/2.0
 610     }
 611     else // single line
 612     {
 613         // First remove the selection if there is one
 614         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 615
 616         // This moves the cursor pos to behind the inserted text.
 617         gint len = GET_EDITABLE_POS(m_text);
 618
 619 #ifdef __WXGTK20__
 620
 621 #if wxUSE_UNICODE
 622         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 623 #else
 624         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 625 #endif
 626         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
 627
 628 #else
 629         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
 630 #endif
 631
 632         // Bring entry's cursor uptodate.
 633         gtk_entry_set_position( GTK_ENTRY(m_text), len );
 634     }
 635
 636     m_modified = TRUE;
 637 }
 638
 639 void wxTextCtrl::AppendText( const wxString &text )
 640 {
 641     SetInsertionPointEnd();
 642     WriteText( text );
 643 }
 644
 645 wxString wxTextCtrl::GetLineText( long lineNo ) const
 646 {
 647     if (m_windowStyle & wxTE_MULTILINE)
 648     {
 649 #ifndef __WXGTK20__
 650         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 651         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 652
 653         if (text)
 654         {
 655             wxString buf(wxT(""));
 656             long i;
 657             int currentLine = 0;
 658             for (i = 0; currentLine != lineNo && text[i]; i++ )
 659                 if (text[i] == '\n')
 660             currentLine++;
 661             // Now get the text
 662             int j;
 663             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 664                 buf += text[i];
 665
 666             g_free( text );
 667             return buf;
 668         }
 669         else
 670 #endif
 671         {
 672             return wxEmptyString;
 673         }
 674     }
 675     else
 676     {
 677         if (lineNo == 0) return GetValue();
 678         return wxEmptyString;
 679     }
 680 }
 681
 682 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 683 {
 684   /* If you implement this, don't forget to update the documentation!
 685    * (file docs/latex/wx/text.tex) */
 686     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 687 }
 688
 689 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 690 {
 691     if ( m_windowStyle & wxTE_MULTILINE )
 692     {
 693         wxString text = GetValue();
 694
 695         // cast to prevent warning. But pos really should've been unsigned.
 696         if( (unsigned long)pos > text.Len()  )
 697             return FALSE;
 698
 699         *x=0;   // First Col
 700         *y=0;   // First Line
 701
 702         const wxChar* stop = text.c_str() + pos;
 703         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 704         {
 705             if (*p == wxT('\n'))
 706             {
 707                 (*y)++;
 708                 *x=0;
 709             }
 710             else
 711                 (*x)++;
 712         }
 713     }
 714     else // single line control
 715     {
 716         if ( pos <= GTK_ENTRY(m_text)->text_length )
 717         {
 718             *y = 0;
 719             *x = pos;
 720         }
 721         else
 722         {
 723             // index out of bounds
 724             return FALSE;
 725         }
 726     }
 727
 728     return TRUE;
 729 }
 730
 731 long wxTextCtrl::XYToPosition(long x, long y ) const
 732 {
 733     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 734
 735     long pos=0;
 736     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 737
 738     pos += x;
 739     return pos;
 740 }
 741
 742 int wxTextCtrl::GetLineLength(long lineNo) const
 743 {
 744     wxString str = GetLineText (lineNo);
 745     return (int) str.Length();
 746 }
 747
 748 int wxTextCtrl::GetNumberOfLines() const
 749 {
 750     if (m_windowStyle & wxTE_MULTILINE)
 751     {
 752 #ifdef __WXGTK20__
 753         GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 754
 755         return gtk_text_buffer_get_line_count( buffer );
 756 #else
 757         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 758         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 759
 760         if (text)
 761         {
 762             int currentLine = 0;
 763             for (int i = 0; i < len; i++ )
 764             {
 765                 if (text[i] == '\n')
 766                     currentLine++;
 767             }
 768             g_free( text );
 769
 770             // currentLine is 0 based, add 1 to get number of lines
 771             return currentLine + 1;
 772         }
 773         else
 774         {
 775             return 0;
 776         }
 777 #endif
 778     }
 779     else
 780     {
 781         return 1;
 782     }
 783 }
 784
 785 void wxTextCtrl::SetInsertionPoint( long pos )
 786 {
 787     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 788
 789     if (m_windowStyle & wxTE_MULTILINE)
 790     {
 791 #ifdef __WXGTK20__
 792         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 793         GtkTextIter iter;
 794         gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
 795         gtk_text_buffer_place_cursor( text_buffer, &iter );
 796 #else
 797         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 798           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 799
 800         /* we fake a set_point by inserting and deleting. as the user
 801            isn't supposed to get to know about this non-sense, we
 802            disconnect so that no events are sent to the user program. */
 803
 804         gint tmp = (gint)pos;
 805         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 806         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 807
 808         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 809           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 810
 811         // bring editable's cursor uptodate. Bug in GTK.
 812         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 813 #endif
 814     }
 815     else
 816     {
 817         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 818
 819         // Bring editable's cursor uptodate. Bug in GTK.
 820         SET_EDITABLE_POS(m_text, (guint32)pos);
 821     }
 822 }
 823
 824 void wxTextCtrl::SetInsertionPointEnd()
 825 {
 826     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 827
 828     if (m_windowStyle & wxTE_MULTILINE)
 829     {
 830 #ifdef __WXGTK20__
 831         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 832         GtkTextIter end;
 833         gtk_text_buffer_get_end_iter( text_buffer, &end );
 834         gtk_text_buffer_place_cursor( text_buffer, &end );
 835 #else
 836         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 837 #endif
 838     }
 839     else
 840     {
 841         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 842     }
 843 }
 844
 845 void wxTextCtrl::SetEditable( bool editable )
 846 {
 847     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 848
 849     if (m_windowStyle & wxTE_MULTILINE)
 850     {
 851 #ifdef __WXGTK20__
 852         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
 853 #else
 854         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 855 #endif
 856     }
 857     else
 858     {
 859         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 860     }
 861 }
 862
 863 bool wxTextCtrl::Enable( bool enable )
 864 {
 865     if (!wxWindowBase::Enable(enable))
 866     {
 867         // nothing to do
 868         return FALSE;
 869     }
 870
 871     if (m_windowStyle & wxTE_MULTILINE)
 872     {
 873 #ifdef __WXGTK20__
 874         SetEditable( enable );
 875 #else
 876         gtk_text_set_editable( GTK_TEXT(m_text), enable );
 877         OnParentEnable(enable);
 878 #endif
 879     }
 880     else
 881     {
 882         gtk_widget_set_sensitive( m_text, enable );
 883     }
 884
 885     return TRUE;
 886 }
 887
 888 // wxGTK-specific: called recursively by Enable,
 889 // to give widgets an oppprtunity to correct their colours after they
 890 // have been changed by Enable
 891 void wxTextCtrl::OnParentEnable( bool enable )
 892 {
 893     // If we have a custom background colour, we use this colour in both
 894     // disabled and enabled mode, or we end up with a different colour under the
 895     // text.
 896     wxColour oldColour = GetBackgroundColour();
 897     if (oldColour.Ok())
 898     {
 899         // Need to set twice or it'll optimize the useful stuff out
 900         if (oldColour == * wxWHITE)
 901             SetBackgroundColour(*wxBLACK);
 902         else
 903             SetBackgroundColour(*wxWHITE);
 904         SetBackgroundColour(oldColour);
 905     }
 906 }
 907
 908 void wxTextCtrl::DiscardEdits()
 909 {
 910     m_modified = FALSE;
 911 }
 912
 913 // ----------------------------------------------------------------------------
 914 // max text length support
 915 // ----------------------------------------------------------------------------
 916
 917 void wxTextCtrl::IgnoreNextTextUpdate()
 918 {
 919     m_ignoreNextUpdate = TRUE;
 920 }
 921
 922 bool wxTextCtrl::IgnoreTextUpdate()
 923 {
 924     if ( m_ignoreNextUpdate )
 925     {
 926         m_ignoreNextUpdate = FALSE;
 927
 928         return TRUE;
 929     }
 930
 931     return FALSE;
 932 }
 933
 934 void wxTextCtrl::SetMaxLength(unsigned long len)
 935 {
 936     if ( !HasFlag(wxTE_MULTILINE) )
 937     {
 938         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
 939
 940         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
 941         // we had tried to enter more text than allowed by max text length and
 942         // the text wasn't really changed
 943         //
 944         // to detect this and generate TEXT_MAXLEN event instead of
 945         // TEXT_CHANGED one in this case we also catch "insert_text" signal
 946         //
 947         // when max len is set to 0 we disconnect our handler as it means that
 948         // we shouldn't check anything any more
 949         if ( len )
 950         {
 951             gtk_signal_connect( GTK_OBJECT(m_text),
 952                                 "insert_text",
 953                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
 954                                 (gpointer)this);
 955         }
 956         else // no checking
 957         {
 958             gtk_signal_disconnect_by_func
 959             (
 960                 GTK_OBJECT(m_text),
 961                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
 962                 (gpointer)this
 963             );
 964         }
 965     }
 966 }
 967
 968 void wxTextCtrl::SetSelection( long from, long to )
 969 {
 970     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 971
 972     if (from == -1 && to == -1)
 973     {
 974         from = 0;
 975         to = GetValue().Length();
 976     }
 977
 978 #ifndef __WXGTK20__
 979     if ( (m_windowStyle & wxTE_MULTILINE) &&
 980          !GTK_TEXT(m_text)->line_start_cache )
 981     {
 982         // tell the programmer that it didn't work
 983         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
 984         return;
 985     }
 986 #endif
 987
 988     if (m_windowStyle & wxTE_MULTILINE)
 989     {
 990 #ifdef __WXGTK20__
 991         GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 992
 993         GtkTextIter fromi, toi;
 994         gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
 995         gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
 996
 997         gtk_text_buffer_place_cursor( buf, &toi );
 998         gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
 999 #else
1000         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1001 #endif
1002     }
1003     else
1004     {
1005         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1006     }
1007 }
1008
1009 void wxTextCtrl::ShowPosition( long pos )
1010 {
1011     if (m_windowStyle & wxTE_MULTILINE)
1012     {
1013 #ifdef __WXGTK20__
1014         GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1015         GtkTextIter iter;
1016         gtk_text_buffer_get_start_iter( buf, &iter );
1017         gtk_text_iter_set_offset( &iter, pos );
1018         GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1019         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1020 #else // GTK 1.x
1021         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1022         float totalLines =  (float) GetNumberOfLines();
1023         long posX;
1024         long posY;
1025         PositionToXY(pos, &posX, &posY);
1026         float posLine = (float) posY;
1027         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1028         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1029 #endif // GTK 1.x/2.x
1030     }
1031 }
1032
1033 long wxTextCtrl::GetInsertionPoint() const
1034 {
1035     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1036
1037 #ifdef __WXGTK20__
1038     if (m_windowStyle & wxTE_MULTILINE)
1039     {
1040         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1041
1042         // There is no direct accessor for the cursor, but
1043         // internally, the cursor is the "mark" called
1044         // "insert" in the text view's btree structure.
1045
1046         GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1047         GtkTextIter cursor;
1048         gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1049
1050         return gtk_text_iter_get_offset( &cursor );
1051     }
1052     else
1053 #endif
1054     {
1055     return (long) GET_EDITABLE_POS(m_text);
1056     }
1057 }
1058
1059 long wxTextCtrl::GetLastPosition() const
1060 {
1061     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1062
1063     int pos = 0;
1064
1065     if (m_windowStyle & wxTE_MULTILINE)
1066     {
1067 #ifdef __WXGTK20__
1068         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1069         GtkTextIter end;
1070         gtk_text_buffer_get_end_iter( text_buffer, &end );
1071
1072         pos = gtk_text_iter_get_offset( &end );
1073 #else
1074         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1075 #endif
1076     }
1077     else
1078     {
1079         pos = GTK_ENTRY(m_text)->text_length;
1080     }
1081
1082     return (long)pos;
1083 }
1084
1085 void wxTextCtrl::Remove( long from, long to )
1086 {
1087     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1088
1089 #ifdef __WXGTK20__
1090     if (m_windowStyle & wxTE_MULTILINE)
1091     {
1092         GtkTextBuffer *
1093             text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1094
1095         GtkTextIter fromi, toi;
1096         gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1097         gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1098
1099         gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1100     }
1101     else // single line
1102 #endif
1103     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1104 }
1105
1106 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1107 {
1108     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1109
1110     Remove( from, to );
1111
1112     if (!value.IsEmpty())
1113     {
1114 #ifdef __WXGTK20__
1115         SetInsertionPoint( from );
1116         WriteText( value );
1117 #else // GTK 1.x
1118         gint pos = (gint)from;
1119 #if wxUSE_UNICODE
1120         wxWX2MBbuf buf = value.mbc_str();
1121         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1122 #else
1123         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1124 #endif // wxUSE_UNICODE
1125 #endif // GTK 1.x/2.x
1126     }
1127 }
1128
1129 void wxTextCtrl::Cut()
1130 {
1131     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1132
1133 #ifndef __WXGTK20__
1134     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1135 #endif
1136 }
1137
1138 void wxTextCtrl::Copy()
1139 {
1140     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1141
1142 #ifndef __WXGTK20__
1143     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1144 #endif
1145 }
1146
1147 void wxTextCtrl::Paste()
1148 {
1149     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1150
1151 #ifndef __WXGTK20__
1152     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG );
1153 #endif
1154 }
1155
1156 // Undo/redo
1157 void wxTextCtrl::Undo()
1158 {
1159     // TODO
1160     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1161 }
1162
1163 void wxTextCtrl::Redo()
1164 {
1165     // TODO
1166     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1167 }
1168
1169 bool wxTextCtrl::CanUndo() const
1170 {
1171     // TODO
1172     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1173     return FALSE;
1174 }
1175
1176 bool wxTextCtrl::CanRedo() const
1177 {
1178     // TODO
1179     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1180     return FALSE;
1181 }
1182
1183 // If the return values from and to are the same, there is no
1184 // selection.
1185 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1186 {
1187     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1188
1189     gint from = -1;
1190     gint to = -1;
1191     bool haveSelection = FALSE;
1192
1193 #ifdef __WXGTK20__
1194      if (m_windowStyle & wxTE_MULTILINE)
1195      {
1196          GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1197          GtkTextIter ifrom, ito;
1198          if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1199          {
1200              haveSelection = TRUE;
1201              from = gtk_text_iter_get_offset(&ifrom);
1202              to = gtk_text_iter_get_offset(&ito);
1203          }
1204      }
1205      else  // not multi-line
1206      {
1207          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1208                                                  &from, &to) )
1209          {
1210              haveSelection = TRUE;
1211          }
1212      }
1213 #else //  not GTK2
1214      if ( (GTK_EDITABLE(m_text)->has_selection) )
1215      {
1216          haveSelection = TRUE;
1217          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1218          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1219      }
1220 #endif
1221
1222      if (! haveSelection )
1223           from = to = GetInsertionPoint();
1224
1225      if ( from > to )
1226      {
1227          // exchange them to be compatible with wxMSW
1228          gint tmp = from;
1229          from = to;
1230          to = tmp;
1231      }
1232
1233     if ( fromOut )
1234         *fromOut = from;
1235     if ( toOut )
1236         *toOut = to;
1237 }
1238
1239
1240 bool wxTextCtrl::IsEditable() const
1241 {
1242     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1243
1244 #ifdef __WXGTK20__
1245     if (m_windowStyle & wxTE_MULTILINE)
1246     {
1247         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1248     }
1249     else
1250     {
1251         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1252     }
1253 #else
1254     return GTK_EDITABLE(m_text)->editable;
1255 #endif
1256 }
1257
1258 bool wxTextCtrl::IsModified() const
1259 {
1260     return m_modified;
1261 }
1262
1263 void wxTextCtrl::Clear()
1264 {
1265     SetValue( wxT("") );
1266 }
1267
1268 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1269 {
1270     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1271
1272     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1273     {
1274         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1275         event.SetEventObject(this);
1276         event.SetString(GetValue());
1277         if (GetEventHandler()->ProcessEvent(event)) return;
1278     }
1279
1280     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1281     {
1282         // This will invoke the dialog default action, such
1283         // as the clicking the default button.
1284
1285         wxWindow *top_frame = m_parent;
1286         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1287             top_frame = top_frame->GetParent();
1288
1289         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1290         {
1291             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1292
1293             if (window->default_widget)
1294             {
1295                 gtk_widget_activate (window->default_widget);
1296                 return;
1297             }
1298         }
1299     }
1300
1301     key_event.Skip();
1302 }
1303
1304 GtkWidget* wxTextCtrl::GetConnectWidget()
1305 {
1306     return GTK_WIDGET(m_text);
1307 }
1308
1309 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1310 {
1311     if (m_windowStyle & wxTE_MULTILINE)
1312     {
1313 #ifdef __WXGTK20__
1314         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1315 #else
1316         return (window == GTK_TEXT(m_text)->text_area);
1317 #endif
1318     }
1319     else
1320     {
1321         return (window == GTK_ENTRY(m_text)->text_area);
1322     }
1323 }
1324
1325 // the font will change for subsequent text insertiongs
1326 bool wxTextCtrl::SetFont( const wxFont &font )
1327 {
1328     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1329
1330     if ( !wxTextCtrlBase::SetFont(font) )
1331     {
1332         // font didn't change, nothing to do
1333         return FALSE;
1334     }
1335
1336     if ( m_windowStyle & wxTE_MULTILINE )
1337     {
1338         m_updateFont = TRUE;
1339
1340         m_defaultStyle.SetFont(font);
1341
1342         ChangeFontGlobally();
1343     }
1344
1345     return TRUE;
1346 }
1347
1348 void wxTextCtrl::ChangeFontGlobally()
1349 {
1350     // this method is very inefficient and hence should be called as rarely as
1351     // possible!
1352     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont,
1353                   _T("shouldn't be called for single line controls") );
1354
1355     wxString value = GetValue();
1356     if ( !value.IsEmpty() )
1357     {
1358         m_updateFont = FALSE;
1359
1360         Clear();
1361         AppendText(value);
1362     }
1363 }
1364
1365 void wxTextCtrl::UpdateFontIfNeeded()
1366 {
1367     if ( m_updateFont )
1368         ChangeFontGlobally();
1369 }
1370
1371 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1372 {
1373     if ( !wxControl::SetForegroundColour(colour) )
1374         return FALSE;
1375
1376     // update default fg colour too
1377     m_defaultStyle.SetTextColour(colour);
1378
1379     return TRUE;
1380 }
1381
1382 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1383 {
1384     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1385
1386     if ( !wxControl::SetBackgroundColour( colour ) )
1387         return FALSE;
1388
1389     if (!m_widget->window)
1390         return FALSE;
1391
1392     wxColour sysbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
1393     if (sysbg.Red() == colour.Red() &&
1394         sysbg.Green() == colour.Green() &&
1395         sysbg.Blue() == colour.Blue())
1396     {
1397         return FALSE; // FIXME or TRUE?
1398     }
1399
1400     if (!m_backgroundColour.Ok())
1401         return FALSE;
1402
1403     if (m_windowStyle & wxTE_MULTILINE)
1404     {
1405 #ifndef __WXGTK20__
1406         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1407         if (!window)
1408             return FALSE;
1409         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1410         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1411         gdk_window_clear( window );
1412 #endif
1413     }
1414
1415     // change active background color too
1416     m_defaultStyle.SetBackgroundColour( colour );
1417
1418     return TRUE;
1419 }
1420
1421 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1422 {
1423     if ( m_windowStyle & wxTE_MULTILINE )
1424     {
1425         if ( style.IsDefault() )
1426         {
1427             // nothing to do
1428             return TRUE;
1429         }
1430 #ifdef __WXGTK20__
1431         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1432         gint l = gtk_text_buffer_get_char_count( text_buffer );
1433
1434         wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1435                      _T("invalid range in wxTextCtrl::SetStyle") );
1436
1437         GtkTextIter starti, endi;
1438         gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1439         gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1440
1441         // use the attributes from style which are set in it and fall back
1442         // first to the default style and then to the text control default
1443         // colours for the others
1444         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1445
1446         PangoFontDescription *font_description = attr.HasFont()
1447                              ? attr.GetFont().GetNativeFontInfo()->description
1448                              : NULL;
1449
1450         GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1451                                                : NULL;
1452
1453         GdkColor *colBg = attr.HasBackgroundColour()
1454                             ? attr.GetBackgroundColour().GetColor()
1455                             : NULL;
1456
1457         GtkTextTag *tag;
1458         tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1459                                          "foreground-gdk", colFg,
1460                                          "background-gdk", colBg, NULL );
1461         gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1462
1463          return TRUE;
1464 #else
1465         // VERY dirty way to do that - removes the required text and re-adds it
1466         // with styling (FIXME)
1467
1468         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1469
1470         wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1471                      _T("invalid range in wxTextCtrl::SetStyle") );
1472
1473         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1474         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1475         wxString tmp(text,*wxConvCurrent);
1476         g_free( text );
1477
1478         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1479         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1480
1481 #if wxUSE_UNICODE
1482         wxWX2MBbuf buf = tmp.mbc_str();
1483         const char *txt = buf;
1484         size_t txtlen = strlen(buf);
1485 #else
1486         const char *txt = tmp;
1487         size_t txtlen = tmp.length();
1488 #endif
1489
1490         // use the attributes from style which are set in it and fall back
1491         // first to the default style and then to the text control default
1492         // colours for the others
1493         wxGtkTextInsert(m_text,
1494                         wxTextAttr::Combine(style, m_defaultStyle, this),
1495                         txt,
1496                         txtlen);
1497
1498         /* does not seem to help under GTK+ 1.2 !!!
1499         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1500         SetInsertionPoint( old_pos );
1501 #endif
1502         return TRUE;
1503     }
1504     else // singe line
1505     {
1506         // cannot do this for GTK+'s Entry widget
1507         return FALSE;
1508     }
1509 }
1510
1511 void wxTextCtrl::ApplyWidgetStyle()
1512 {
1513     if (m_windowStyle & wxTE_MULTILINE)
1514     {
1515         // how ?
1516     }
1517     else
1518     {
1519         SetWidgetStyle();
1520         gtk_widget_set_style( m_text, m_widgetStyle );
1521     }
1522 }
1523
1524 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1525 {
1526     Cut();
1527 }
1528
1529 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1530 {
1531     Copy();
1532 }
1533
1534 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1535 {
1536     Paste();
1537 }
1538
1539 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1540 {
1541     Undo();
1542 }
1543
1544 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1545 {
1546     Redo();
1547 }
1548
1549 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1550 {
1551     event.Enable( CanCut() );
1552 }
1553
1554 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1555 {
1556     event.Enable( CanCopy() );
1557 }
1558
1559 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1560 {
1561     event.Enable( CanPaste() );
1562 }
1563
1564 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1565 {
1566     event.Enable( CanUndo() );
1567 }
1568
1569 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1570 {
1571     event.Enable( CanRedo() );
1572 }
1573
1574 void wxTextCtrl::OnInternalIdle()
1575 {
1576     wxCursor cursor = m_cursor;
1577     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1578
1579     if (cursor.Ok())
1580     {
1581 #ifndef __WXGTK20__
1582         GdkWindow *window = (GdkWindow*) NULL;
1583         if (HasFlag(wxTE_MULTILINE))
1584             window = GTK_TEXT(m_text)->text_area;
1585         else
1586             window = GTK_ENTRY(m_text)->text_area;
1587
1588         if (window)
1589             gdk_window_set_cursor( window, cursor.GetCursor() );
1590
1591         if (!g_globalCursor.Ok())
1592             cursor = *wxSTANDARD_CURSOR;
1593
1594         window = m_widget->window;
1595         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1596             gdk_window_set_cursor( window, cursor.GetCursor() );
1597 #endif
1598     }
1599
1600     if (g_delayedFocus == this)
1601     {
1602         if (GTK_WIDGET_REALIZED(m_widget))
1603         {
1604             gtk_widget_grab_focus( m_widget );
1605             g_delayedFocus = NULL;
1606         }
1607     }
1608
1609     if (wxUpdateUIEvent::CanUpdate(this))
1610         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1611 }
1612
1613 wxSize wxTextCtrl::DoGetBestSize() const
1614 {
1615     // FIXME should be different for multi-line controls...
1616     wxSize ret( wxControl::DoGetBestSize() );
1617     return wxSize(80, ret.y);
1618 }
1619
1620 // ----------------------------------------------------------------------------
1621 // freeze/thaw
1622 // ----------------------------------------------------------------------------
1623
1624 void wxTextCtrl::Freeze()
1625 {
1626 #ifndef __WXGTK20__
1627     if ( HasFlag(wxTE_MULTILINE) )
1628     {
1629         gtk_text_freeze(GTK_TEXT(m_text));
1630     }
1631 #endif
1632 }
1633
1634 void wxTextCtrl::Thaw()
1635 {
1636 #ifndef __WXGTK20__
1637     if ( HasFlag(wxTE_MULTILINE) )
1638     {
1639         GTK_TEXT(m_text)->vadj->value = 0.0;
1640
1641         gtk_text_thaw(GTK_TEXT(m_text));
1642     }
1643 #endif
1644 }
1645
1646 // ----------------------------------------------------------------------------
1647 // scrolling
1648 // ----------------------------------------------------------------------------
1649
1650 GtkAdjustment *wxTextCtrl::GetVAdj() const
1651 {
1652 #ifdef __WXGTK20__
1653     return NULL;
1654 #else
1655     return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
1656 #endif
1657 }
1658
1659 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1660 {
1661 #ifndef __WXGTK20__
1662     float value = adj->value + diff;
1663
1664     if ( value < 0 )
1665         value = 0;
1666
1667     float upper = adj->upper - adj->page_size;
1668     if ( value > upper )
1669         value = upper;
1670
1671     // did we noticeably change the scroll position?
1672     if ( fabs(adj->value - value) < 0.2 )
1673     {
1674         // well, this is what Robert does in wxScrollBar, so it must be good...
1675         return FALSE;
1676     }
1677
1678     adj->value = value;
1679
1680     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1681
1682 #endif
1683     return TRUE;
1684 }
1685
1686 bool wxTextCtrl::ScrollLines(int lines)
1687 {
1688 #ifdef __WXGTK20__
1689     return FALSE;
1690 #else
1691     GtkAdjustment *adj = GetVAdj();
1692     if ( !adj )
1693         return FALSE;
1694
1695     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1696     static const int KEY_SCROLL_PIXELS = 10;
1697
1698     return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
1699 #endif
1700 }
1701
1702 bool wxTextCtrl::ScrollPages(int pages)
1703 {
1704 #ifdef __WXGTK20__
1705     return FALSE;
1706 #else
1707     GtkAdjustment *adj = GetVAdj();
1708     if ( !adj )
1709         return FALSE;
1710
1711     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1712 #endif
1713 }
1714