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 #ifndef __WXGTK20__
 159     win->UpdateFontIfNeeded();
 160 #endif // !__WXGTK20__
 161
 162     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
 163     event.SetEventObject( win );
 164     event.SetString( win->GetValue() );
 165     win->GetEventHandler()->ProcessEvent( event );
 166 }
 167
 168 //-----------------------------------------------------------------------------
 169 // "changed" from vertical scrollbar
 170 //-----------------------------------------------------------------------------
 171
 172 #ifndef __WXGTK20__
 173 static void
 174 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
 175 {
 176     if (!win->m_hasVMT) return;
 177
 178     if (g_isIdle)
 179         wxapp_install_idle_handler();
 180
 181     win->CalculateScrollbar();
 182 }
 183 #endif
 184
 185 // ----------------------------------------------------------------------------
 186 // redraw callback for multiline text
 187 // ----------------------------------------------------------------------------
 188
 189 #ifndef __WXGTK20__
 190
 191 // redrawing a GtkText from inside a wxYield() call results in crashes (the
 192 // text sample shows it in its "Add lines" command which shows wxProgressDialog
 193 // which implicitly calls wxYield()) so we override GtkText::draw() and simply
 194 // don't do anything if we're inside wxYield()
 195
 196 extern bool wxIsInsideYield;
 197
 198 extern "C" {
 199     typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect);
 200 }
 201
 202 static GtkDrawCallback gs_gtk_text_draw = NULL;
 203
 204 extern "C"
 205 void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect)
 206 {
 207     if ( !wxIsInsideYield )
 208     {
 209         wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw,
 210                      _T("infinite recursion in wxgtk_text_draw aborted") );
 211
 212         gs_gtk_text_draw(widget, rect);
 213     }
 214 }
 215
 216 #endif // __WXGTK20__
 217
 218 //-----------------------------------------------------------------------------
 219 //  wxTextCtrl
 220 //-----------------------------------------------------------------------------
 221
 222 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 223
 224 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 225     EVT_CHAR(wxTextCtrl::OnChar)
 226
 227     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 228     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 229     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 230     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 231     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 232
 233     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 234     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 235     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 236     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 237     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 238 END_EVENT_TABLE()
 239
 240 void wxTextCtrl::Init()
 241 {
 242     m_ignoreNextUpdate =
 243     m_modified = FALSE;
 244     SetUpdateFont(FALSE);
 245     m_text =
 246     m_vScrollbar = (GtkWidget *)NULL;
 247 }
 248
 249 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 250                         wxWindowID id,
 251                         const wxString &value,
 252                         const wxPoint &pos,
 253                         const wxSize &size,
 254                         long style,
 255                         const wxValidator& validator,
 256                         const wxString &name )
 257 {
 258     Init();
 259
 260     Create( parent, id, value, pos, size, style, validator, name );
 261 }
 262
 263 bool wxTextCtrl::Create( wxWindow *parent,
 264                          wxWindowID id,
 265                          const wxString &value,
 266                          const wxPoint &pos,
 267                          const wxSize &size,
 268                          long style,
 269                          const wxValidator& validator,
 270                          const wxString &name )
 271 {
 272     m_needParent = TRUE;
 273     m_acceptsFocus = TRUE;
 274
 275     if (!PreCreation( parent, pos, size ) ||
 276         !CreateBase( parent, id, pos, size, style, validator, name ))
 277     {
 278         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 279         return FALSE;
 280     }
 281
 282
 283     m_vScrollbarVisible = FALSE;
 284
 285     bool multi_line = (style & wxTE_MULTILINE) != 0;
 286
 287 #ifdef __WXGTK20__
 288     GtkTextBuffer *buffer = NULL;
 289 #endif
 290
 291     if (multi_line)
 292     {
 293 #ifdef __WXGTK20__
 294         // Create view
 295         m_text = gtk_text_view_new();
 296
 297         buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 298
 299         // create scrolled window
 300         m_widget = gtk_scrolled_window_new( NULL, NULL );
 301         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 302                                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 303
 304         // Insert view into scrolled window
 305         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 306
 307         // Global settings which can be overridden by tags, I guess.
 308         if (HasFlag( wxHSCROLL ) || HasFlag( wxTE_DONTWRAP ))
 309             gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_NONE );
 310         else
 311             gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), GTK_WRAP_WORD );
 312
 313         if (!HasFlag(wxNO_BORDER))
 314             gtk_scrolled_window_set_shadow_type( GTK_SCROLLED_WINDOW(m_widget), GTK_SHADOW_IN );
 315
 316         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 317 #else
 318         // create our control ...
 319         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 320
 321         // ... and put into the upper left hand corner of the table
 322         bool bHasHScrollbar = FALSE;
 323         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 324         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 325         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 326                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 327                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 328                        0, 0);
 329
 330         // always wrap words
 331         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 332
 333         // finally, put the vertical scrollbar in the upper right corner
 334         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 335         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 336         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 337                      GTK_FILL,
 338                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 339                      0, 0);
 340 #endif
 341     }
 342     else
 343     {
 344         // a single-line text control: no need for scrollbars
 345         m_widget =
 346         m_text = gtk_entry_new();
 347     }
 348
 349     m_parent->DoAddChild( this );
 350
 351     m_focusWidget = m_text;
 352
 353     PostCreation(size);
 354
 355     if (multi_line)
 356         gtk_widget_show(m_text);
 357
 358 #ifndef __WXGTK20__
 359     if (multi_line)
 360     {
 361         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 362           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 363
 364         // only initialize gs_gtk_text_draw once, starting from the next the
 365         // klass::draw will already be wxgtk_text_draw
 366         if ( !gs_gtk_text_draw )
 367         {
 368             GtkDrawCallback&
 369                 draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw;
 370
 371             gs_gtk_text_draw = draw;
 372
 373             draw = wxgtk_text_draw;
 374         }
 375     }
 376 #endif // GTK+ 1.x
 377
 378     if (!value.IsEmpty())
 379     {
 380 #ifdef __WXGTK20__
 381         SetValue( value );
 382 #else
 383
 384 #if !GTK_CHECK_VERSION(1, 2, 0)
 385         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 386         // gtk_editable_insert_text()
 387         gtk_widget_realize(m_text);
 388 #endif // GTK 1.0
 389
 390         gint tmp = 0;
 391 #if wxUSE_UNICODE
 392         wxWX2MBbuf val = value.mbc_str();
 393         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 394 #else
 395         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 396 #endif
 397
 398         if (multi_line)
 399         {
 400             // Bring editable's cursor uptodate. Bug in GTK.
 401             SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 402         }
 403
 404 #endif
 405     }
 406
 407     if (style & wxTE_PASSWORD)
 408     {
 409         if (!multi_line)
 410             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 411     }
 412
 413     if (style & wxTE_READONLY)
 414     {
 415         if (!multi_line)
 416             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 417 #ifdef __WXGTK20__
 418         else
 419             gtk_text_view_set_editable( GTK_TEXT_VIEW( m_text), FALSE);
 420 #else
 421     }
 422     else
 423     {
 424         if (multi_line)
 425             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 426 #endif
 427     }
 428
 429 #ifdef __WXGTK20__
 430     if (multi_line)
 431     {
 432         if (style & wxTE_RIGHT)
 433             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_RIGHT );
 434         else if (style & wxTE_CENTRE)
 435             gtk_text_view_set_justification( GTK_TEXT_VIEW(m_text), GTK_JUSTIFY_CENTER );
 436         // Left justify (alignment) is the default and we don't need to apply GTK_JUSTIFY_LEFT
 437     }
 438     // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 439 #if GTK_CHECK_VERSION(2, 3, 5)
 440     else
 441     {
 442         if (style & wxTE_RIGHT)
 443             gtk_entry_set_alignment( GTK_ENTRY(m_text), 1.0 );
 444         else if (style & wxTE_CENTRE)
 445             gtk_entry_set_alignment( GTK_ENTRY(m_text), 0.5 );
 446     }
 447 #endif // gtk+-2.3.5
 448 #endif // __WXGTK20__
 449
 450     // We want to be notified about text changes.
 451 #ifdef __WXGTK20__
 452     if (multi_line)
 453     {
 454         g_signal_connect( G_OBJECT(buffer), "changed",
 455             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 456     }
 457     else
 458 #endif
 459
 460     {
 461         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 462             GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 463     }
 464
 465     m_cursor = wxCursor( wxCURSOR_IBEAM );
 466
 467     wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
 468     SetDefaultStyle( attrDef );
 469
 470     return TRUE;
 471 }
 472
 473
 474 void wxTextCtrl::CalculateScrollbar()
 475 {
 476 #ifndef __WXGTK20__
 477     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 478
 479     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 480
 481     if (adj->upper - adj->page_size < 0.8)
 482     {
 483         if (m_vScrollbarVisible)
 484         {
 485             gtk_widget_hide( m_vScrollbar );
 486             m_vScrollbarVisible = FALSE;
 487         }
 488     }
 489     else
 490     {
 491         if (!m_vScrollbarVisible)
 492         {
 493             gtk_widget_show( m_vScrollbar );
 494             m_vScrollbarVisible = TRUE;
 495         }
 496     }
 497 #endif
 498 }
 499
 500 wxString wxTextCtrl::GetValue() const
 501 {
 502     wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
 503
 504     wxString tmp;
 505     if (m_windowStyle & wxTE_MULTILINE)
 506     {
 507 #ifdef __WXGTK20__
 508         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 509
 510         GtkTextIter start;
 511         gtk_text_buffer_get_start_iter( text_buffer, &start );
 512         GtkTextIter end;
 513         gtk_text_buffer_get_end_iter( text_buffer, &end );
 514         gchar *text = gtk_text_buffer_get_text( text_buffer, &start, &end, TRUE );
 515
 516 #if wxUSE_UNICODE
 517         wxWCharBuffer buffer( wxConvUTF8.cMB2WX( text ) );
 518 #else
 519         wxCharBuffer buffer( wxConvLocal.cWC2WX( wxConvUTF8.cMB2WC( text ) ) );
 520 #endif
 521         tmp = buffer;
 522
 523         g_free( text );
 524 #else
 525         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 526         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 527         tmp = text;
 528         g_free( text );
 529 #endif
 530     }
 531     else
 532     {
 533         tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) );
 534     }
 535
 536     return tmp;
 537 }
 538
 539 void wxTextCtrl::SetValue( const wxString &value )
 540 {
 541     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 542
 543     if (m_windowStyle & wxTE_MULTILINE)
 544     {
 545 #ifdef __WXGTK20__
 546
 547 #if wxUSE_UNICODE
 548         wxCharBuffer buffer( wxConvUTF8.cWX2MB( value) );
 549 #else
 550         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( value ) ) );
 551 #endif
 552         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 553         gtk_text_buffer_set_text( text_buffer, buffer, strlen(buffer) );
 554
 555 #else
 556         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 557         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 558         len = 0;
 559         gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len );
 560 #endif
 561     }
 562     else
 563     {
 564         gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) );
 565     }
 566
 567     // GRG, Jun/2000: Changed this after a lot of discussion in
 568     //   the lists. wxWidgets 2.2 will have a set of flags to
 569     //   customize this behaviour.
 570     SetInsertionPoint(0);
 571
 572     m_modified = FALSE;
 573 }
 574
 575 void wxTextCtrl::WriteText( const wxString &text )
 576 {
 577     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 578
 579     if ( text.empty() )
 580         return;
 581
 582     // gtk_text_changed_callback() will set m_modified to true but m_modified
 583     // shouldn't be changed by the program writing to the text control itself,
 584     // so save the old value and restore when we're done
 585     bool oldModified = m_modified;
 586
 587     if ( m_windowStyle & wxTE_MULTILINE )
 588     {
 589 #ifdef __WXGTK20__
 590
 591 #if wxUSE_UNICODE
 592         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 593 #else
 594         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 595 #endif
 596         if ( !buffer )
 597         {
 598             // what else can we do? at least don't crash...
 599             return;
 600         }
 601
 602         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 603
 604         // TODO: Call whatever is needed to delete the selection.
 605         wxGtkTextInsert( m_text, text_buffer, m_defaultStyle, buffer );
 606
 607         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
 608         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
 609         if ( adj->value == adj->upper - adj->page_size )
 610         {
 611             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
 612                     gtk_text_buffer_get_insert( text_buffer ), 0.0, FALSE, 0.0, 1.0 );
 613         }
 614 #else // GTK 1.x
 615         // After cursor movements, gtk_text_get_point() is wrong by one.
 616         gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) );
 617
 618         // always use m_defaultStyle, even if it is empty as otherwise
 619         // resetting the style and appending some more text wouldn't work: if
 620         // we don't specify the style explicitly, the old style would be used
 621         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 622         wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.Len());
 623
 624         // we called wxGtkTextInsert with correct font, no need to do anything
 625         // in UpdateFontIfNeeded() any longer
 626         if ( !text.empty() )
 627         {
 628             SetUpdateFont(FALSE);
 629         }
 630
 631         // Bring editable's cursor back uptodate.
 632         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 633 #endif // GTK 1.x/2.0
 634     }
 635     else // single line
 636     {
 637         // First remove the selection if there is one
 638         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
 639
 640         // This moves the cursor pos to behind the inserted text.
 641         gint len = GET_EDITABLE_POS(m_text);
 642
 643 #ifdef __WXGTK20__
 644
 645 #if wxUSE_UNICODE
 646         wxCharBuffer buffer( wxConvUTF8.cWX2MB( text ) );
 647 #else
 648         wxCharBuffer buffer( wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) ) );
 649 #endif
 650         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
 651
 652 #else
 653         gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.Len(), &len );
 654 #endif
 655
 656         // Bring entry's cursor uptodate.
 657         gtk_entry_set_position( GTK_ENTRY(m_text), len );
 658     }
 659
 660     m_modified = oldModified;
 661 }
 662
 663 void wxTextCtrl::AppendText( const wxString &text )
 664 {
 665     SetInsertionPointEnd();
 666     WriteText( text );
 667 }
 668
 669 wxString wxTextCtrl::GetLineText( long lineNo ) const
 670 {
 671     if (m_windowStyle & wxTE_MULTILINE)
 672     {
 673 #ifndef __WXGTK20__
 674         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 675         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 676
 677         if (text)
 678         {
 679             wxString buf(wxT(""));
 680             long i;
 681             int currentLine = 0;
 682             for (i = 0; currentLine != lineNo && text[i]; i++ )
 683                 if (text[i] == '\n')
 684             currentLine++;
 685             // Now get the text
 686             int j;
 687             for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 688                 buf += text[i];
 689
 690             g_free( text );
 691             return buf;
 692         }
 693         else
 694         {
 695             return wxEmptyString;
 696         }
 697 #else
 698         GtkTextBuffer *text_buffer;
 699         text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(m_text));
 700         GtkTextIter line;
 701         gtk_text_buffer_get_iter_at_line(text_buffer,&line,lineNo);
 702         GtkTextIter end;
 703         gtk_text_buffer_get_end_iter(text_buffer,&end );
 704         gchar *text = gtk_text_buffer_get_text(text_buffer,&line,&end,TRUE);
 705         wxString result(wxGTK_CONV_BACK(text));
 706         g_free(text);
 707         return result.BeforeFirst(wxT('\n'));
 708 #endif
 709     }
 710     else
 711     {
 712         if (lineNo == 0) return GetValue();
 713         return wxEmptyString;
 714     }
 715 }
 716
 717 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 718 {
 719   /* If you implement this, don't forget to update the documentation!
 720    * (file docs/latex/wx/text.tex) */
 721     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 722 }
 723
 724 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 725 {
 726     if ( m_windowStyle & wxTE_MULTILINE )
 727     {
 728         wxString text = GetValue();
 729
 730         // cast to prevent warning. But pos really should've been unsigned.
 731         if( (unsigned long)pos > text.Len()  )
 732             return FALSE;
 733
 734         *x=0;   // First Col
 735         *y=0;   // First Line
 736
 737         const wxChar* stop = text.c_str() + pos;
 738         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 739         {
 740             if (*p == wxT('\n'))
 741             {
 742                 (*y)++;
 743                 *x=0;
 744             }
 745             else
 746                 (*x)++;
 747         }
 748     }
 749     else // single line control
 750     {
 751         if ( pos <= GTK_ENTRY(m_text)->text_length )
 752         {
 753             *y = 0;
 754             *x = pos;
 755         }
 756         else
 757         {
 758             // index out of bounds
 759             return FALSE;
 760         }
 761     }
 762
 763     return TRUE;
 764 }
 765
 766 long wxTextCtrl::XYToPosition(long x, long y ) const
 767 {
 768     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 769
 770     long pos=0;
 771     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 772
 773     pos += x;
 774     return pos;
 775 }
 776
 777 int wxTextCtrl::GetLineLength(long lineNo) const
 778 {
 779     wxString str = GetLineText (lineNo);
 780     return (int) str.Length();
 781 }
 782
 783 int wxTextCtrl::GetNumberOfLines() const
 784 {
 785     if (m_windowStyle & wxTE_MULTILINE)
 786     {
 787 #ifdef __WXGTK20__
 788         GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 789
 790         return gtk_text_buffer_get_line_count( buffer );
 791 #else
 792         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 793         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 794
 795         if (text)
 796         {
 797             int currentLine = 0;
 798             for (int i = 0; i < len; i++ )
 799             {
 800                 if (text[i] == '\n')
 801                     currentLine++;
 802             }
 803             g_free( text );
 804
 805             // currentLine is 0 based, add 1 to get number of lines
 806             return currentLine + 1;
 807         }
 808         else
 809         {
 810             return 0;
 811         }
 812 #endif
 813     }
 814     else
 815     {
 816         return 1;
 817     }
 818 }
 819
 820 void wxTextCtrl::SetInsertionPoint( long pos )
 821 {
 822     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 823
 824     if (m_windowStyle & wxTE_MULTILINE)
 825     {
 826 #ifdef __WXGTK20__
 827         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 828         GtkTextIter iter;
 829         gtk_text_buffer_get_iter_at_offset( text_buffer, &iter, pos );
 830         gtk_text_buffer_place_cursor( text_buffer, &iter );
 831 #else
 832         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 833           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 834
 835         /* we fake a set_point by inserting and deleting. as the user
 836            isn't supposed to get to know about this non-sense, we
 837            disconnect so that no events are sent to the user program. */
 838
 839         gint tmp = (gint)pos;
 840         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 841         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 842
 843         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 844           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 845
 846         // bring editable's cursor uptodate. Bug in GTK.
 847         SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) ));
 848 #endif
 849     }
 850     else
 851     {
 852         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 853
 854         // Bring editable's cursor uptodate. Bug in GTK.
 855         SET_EDITABLE_POS(m_text, (guint32)pos);
 856     }
 857 }
 858
 859 void wxTextCtrl::SetInsertionPointEnd()
 860 {
 861     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 862
 863     if (m_windowStyle & wxTE_MULTILINE)
 864     {
 865 #ifdef __WXGTK20__
 866         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 867         GtkTextIter end;
 868         gtk_text_buffer_get_end_iter( text_buffer, &end );
 869         gtk_text_buffer_place_cursor( text_buffer, &end );
 870 #else
 871         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 872 #endif
 873     }
 874     else
 875     {
 876         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 877     }
 878 }
 879
 880 void wxTextCtrl::SetEditable( bool editable )
 881 {
 882     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 883
 884     if (m_windowStyle & wxTE_MULTILINE)
 885     {
 886 #ifdef __WXGTK20__
 887         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
 888 #else
 889         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 890 #endif
 891     }
 892     else
 893     {
 894         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 895     }
 896 }
 897
 898 bool wxTextCtrl::Enable( bool enable )
 899 {
 900     if (!wxWindowBase::Enable(enable))
 901     {
 902         // nothing to do
 903         return FALSE;
 904     }
 905
 906     if (m_windowStyle & wxTE_MULTILINE)
 907     {
 908 #ifdef __WXGTK20__
 909         SetEditable( enable );
 910 #else
 911         gtk_text_set_editable( GTK_TEXT(m_text), enable );
 912         OnParentEnable(enable);
 913 #endif
 914     }
 915     else
 916     {
 917         gtk_widget_set_sensitive( m_text, enable );
 918     }
 919
 920     return TRUE;
 921 }
 922
 923 // wxGTK-specific: called recursively by Enable,
 924 // to give widgets an oppprtunity to correct their colours after they
 925 // have been changed by Enable
 926 void wxTextCtrl::OnParentEnable( bool enable )
 927 {
 928     // If we have a custom background colour, we use this colour in both
 929     // disabled and enabled mode, or we end up with a different colour under the
 930     // text.
 931     wxColour oldColour = GetBackgroundColour();
 932     if (oldColour.Ok())
 933     {
 934         // Need to set twice or it'll optimize the useful stuff out
 935         if (oldColour == * wxWHITE)
 936             SetBackgroundColour(*wxBLACK);
 937         else
 938             SetBackgroundColour(*wxWHITE);
 939         SetBackgroundColour(oldColour);
 940     }
 941 }
 942
 943 void wxTextCtrl::MarkDirty()
 944 {
 945     m_modified = TRUE;
 946 }
 947
 948 void wxTextCtrl::DiscardEdits()
 949 {
 950     m_modified = FALSE;
 951 }
 952
 953 // ----------------------------------------------------------------------------
 954 // max text length support
 955 // ----------------------------------------------------------------------------
 956
 957 void wxTextCtrl::IgnoreNextTextUpdate()
 958 {
 959     m_ignoreNextUpdate = TRUE;
 960 }
 961
 962 bool wxTextCtrl::IgnoreTextUpdate()
 963 {
 964     if ( m_ignoreNextUpdate )
 965     {
 966         m_ignoreNextUpdate = FALSE;
 967
 968         return TRUE;
 969     }
 970
 971     return FALSE;
 972 }
 973
 974 void wxTextCtrl::SetMaxLength(unsigned long len)
 975 {
 976     if ( !HasFlag(wxTE_MULTILINE) )
 977     {
 978         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
 979
 980         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
 981         // we had tried to enter more text than allowed by max text length and
 982         // the text wasn't really changed
 983         //
 984         // to detect this and generate TEXT_MAXLEN event instead of
 985         // TEXT_CHANGED one in this case we also catch "insert_text" signal
 986         //
 987         // when max len is set to 0 we disconnect our handler as it means that
 988         // we shouldn't check anything any more
 989         if ( len )
 990         {
 991             gtk_signal_connect( GTK_OBJECT(m_text),
 992                                 "insert_text",
 993                                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
 994                                 (gpointer)this);
 995         }
 996         else // no checking
 997         {
 998             gtk_signal_disconnect_by_func
 999             (
1000                 GTK_OBJECT(m_text),
1001                 GTK_SIGNAL_FUNC(gtk_insert_text_callback),
1002                 (gpointer)this
1003             );
1004         }
1005     }
1006 }
1007
1008 void wxTextCtrl::SetSelection( long from, long to )
1009 {
1010     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1011
1012     if (from == -1 && to == -1)
1013     {
1014         from = 0;
1015         to = GetValue().Length();
1016     }
1017
1018 #ifndef __WXGTK20__
1019     if ( (m_windowStyle & wxTE_MULTILINE) &&
1020          !GTK_TEXT(m_text)->line_start_cache )
1021     {
1022         // tell the programmer that it didn't work
1023         wxLogDebug(_T("Can't call SetSelection() before realizing the control"));
1024         return;
1025     }
1026 #endif
1027
1028     if (m_windowStyle & wxTE_MULTILINE)
1029     {
1030 #ifdef __WXGTK20__
1031         GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1032
1033         GtkTextIter fromi, toi;
1034         gtk_text_buffer_get_iter_at_offset( buf, &fromi, from );
1035         gtk_text_buffer_get_iter_at_offset( buf, &toi, to );
1036
1037         gtk_text_buffer_place_cursor( buf, &toi );
1038         gtk_text_buffer_move_mark_by_name( buf, "selection_bound", &fromi );
1039 #else
1040         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1041 #endif
1042     }
1043     else
1044     {
1045         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1046     }
1047 }
1048
1049 void wxTextCtrl::ShowPosition( long pos )
1050 {
1051     if (m_windowStyle & wxTE_MULTILINE)
1052     {
1053 #ifdef __WXGTK20__
1054         GtkTextBuffer *buf = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1055         GtkTextIter iter;
1056         gtk_text_buffer_get_start_iter( buf, &iter );
1057         gtk_text_iter_set_offset( &iter, pos );
1058         GtkTextMark *mark = gtk_text_buffer_create_mark( buf, NULL, &iter, TRUE );
1059         gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text), mark, 0.0, FALSE, 0.0, 0.0 );
1060 #else // GTK 1.x
1061         GtkAdjustment *vp = GTK_TEXT(m_text)->vadj;
1062         float totalLines =  (float) GetNumberOfLines();
1063         long posX;
1064         long posY;
1065         PositionToXY(pos, &posX, &posY);
1066         float posLine = (float) posY;
1067         float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower;
1068         gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p);
1069 #endif // GTK 1.x/2.x
1070     }
1071 }
1072
1073 #ifdef __WXGTK20__
1074
1075 wxTextCtrlHitTestResult
1076 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1077 {
1078     if ( !IsMultiLine() )
1079     {
1080         // not supported
1081         return wxTE_HT_UNKNOWN;
1082     }
1083
1084     int x, y;
1085     gtk_text_view_window_to_buffer_coords
1086     (
1087         GTK_TEXT_VIEW(m_text),
1088         GTK_TEXT_WINDOW_TEXT,
1089         pt.x, pt.y,
1090         &x, &y
1091     );
1092
1093     GtkTextIter iter;
1094     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1095     if ( pos )
1096         *pos = gtk_text_iter_get_offset(&iter);
1097
1098     return wxTE_HT_ON_TEXT;
1099 }
1100
1101 #endif // __WXGTK20__
1102
1103 long wxTextCtrl::GetInsertionPoint() const
1104 {
1105     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1106
1107 #ifdef __WXGTK20__
1108     if (m_windowStyle & wxTE_MULTILINE)
1109     {
1110         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1111
1112         // There is no direct accessor for the cursor, but
1113         // internally, the cursor is the "mark" called
1114         // "insert" in the text view's btree structure.
1115
1116         GtkTextMark *mark = gtk_text_buffer_get_insert( text_buffer );
1117         GtkTextIter cursor;
1118         gtk_text_buffer_get_iter_at_mark( text_buffer, &cursor, mark );
1119
1120         return gtk_text_iter_get_offset( &cursor );
1121     }
1122     else
1123 #endif
1124     {
1125     return (long) GET_EDITABLE_POS(m_text);
1126     }
1127 }
1128
1129 long wxTextCtrl::GetLastPosition() const
1130 {
1131     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1132
1133     int pos = 0;
1134
1135     if (m_windowStyle & wxTE_MULTILINE)
1136     {
1137 #ifdef __WXGTK20__
1138         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1139         GtkTextIter end;
1140         gtk_text_buffer_get_end_iter( text_buffer, &end );
1141
1142         pos = gtk_text_iter_get_offset( &end );
1143 #else
1144         pos = gtk_text_get_length( GTK_TEXT(m_text) );
1145 #endif
1146     }
1147     else
1148     {
1149         pos = GTK_ENTRY(m_text)->text_length;
1150     }
1151
1152     return (long)pos;
1153 }
1154
1155 void wxTextCtrl::Remove( long from, long to )
1156 {
1157     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1158
1159 #ifdef __WXGTK20__
1160     if (m_windowStyle & wxTE_MULTILINE)
1161     {
1162         GtkTextBuffer *
1163             text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1164
1165         GtkTextIter fromi, toi;
1166         gtk_text_buffer_get_iter_at_offset( text_buffer, &fromi, from );
1167         gtk_text_buffer_get_iter_at_offset( text_buffer, &toi, to );
1168
1169         gtk_text_buffer_delete( text_buffer, &fromi, &toi );
1170     }
1171     else // single line
1172 #endif
1173     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1174 }
1175
1176 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1177 {
1178     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1179
1180     Remove( from, to );
1181
1182     if (!value.IsEmpty())
1183     {
1184 #ifdef __WXGTK20__
1185         SetInsertionPoint( from );
1186         WriteText( value );
1187 #else // GTK 1.x
1188         gint pos = (gint)from;
1189 #if wxUSE_UNICODE
1190         wxWX2MBbuf buf = value.mbc_str();
1191         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
1192 #else
1193         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
1194 #endif // wxUSE_UNICODE
1195 #endif // GTK 1.x/2.x
1196     }
1197 }
1198
1199 void wxTextCtrl::Cut()
1200 {
1201     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1202
1203 #ifdef __WXGTK20__
1204     if (m_windowStyle & wxTE_MULTILINE)
1205         g_signal_emit_by_name(m_text, "cut-clipboard");
1206     else
1207 #endif
1208         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1209 }
1210
1211 void wxTextCtrl::Copy()
1212 {
1213     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1214
1215 #ifdef __WXGTK20__
1216     if (m_windowStyle & wxTE_MULTILINE)
1217         g_signal_emit_by_name(m_text, "copy-clipboard");
1218     else
1219 #endif
1220         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1221 }
1222
1223 void wxTextCtrl::Paste()
1224 {
1225     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1226
1227 #ifdef __WXGTK20__
1228     if (m_windowStyle & wxTE_MULTILINE)
1229         g_signal_emit_by_name(m_text, "paste-clipboard");
1230     else
1231 #endif
1232         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG);
1233 }
1234
1235 // Undo/redo
1236 void wxTextCtrl::Undo()
1237 {
1238     // TODO
1239     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1240 }
1241
1242 void wxTextCtrl::Redo()
1243 {
1244     // TODO
1245     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1246 }
1247
1248 bool wxTextCtrl::CanUndo() const
1249 {
1250     // TODO
1251     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1252     return FALSE;
1253 }
1254
1255 bool wxTextCtrl::CanRedo() const
1256 {
1257     // TODO
1258     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1259     return FALSE;
1260 }
1261
1262 // If the return values from and to are the same, there is no
1263 // selection.
1264 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1265 {
1266     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1267
1268     gint from = -1;
1269     gint to = -1;
1270     bool haveSelection = FALSE;
1271
1272 #ifdef __WXGTK20__
1273      if (m_windowStyle & wxTE_MULTILINE)
1274      {
1275          GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (m_text));
1276          GtkTextIter ifrom, ito;
1277          if ( gtk_text_buffer_get_selection_bounds(buffer, &ifrom, &ito) )
1278          {
1279              haveSelection = TRUE;
1280              from = gtk_text_iter_get_offset(&ifrom);
1281              to = gtk_text_iter_get_offset(&ito);
1282          }
1283      }
1284      else  // not multi-line
1285      {
1286          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1287                                                  &from, &to) )
1288          {
1289              haveSelection = TRUE;
1290          }
1291      }
1292 #else //  not GTK2
1293      if ( (GTK_EDITABLE(m_text)->has_selection) )
1294      {
1295          haveSelection = TRUE;
1296          from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
1297          to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
1298      }
1299 #endif
1300
1301      if (! haveSelection )
1302           from = to = GetInsertionPoint();
1303
1304      if ( from > to )
1305      {
1306          // exchange them to be compatible with wxMSW
1307          gint tmp = from;
1308          from = to;
1309          to = tmp;
1310      }
1311
1312     if ( fromOut )
1313         *fromOut = from;
1314     if ( toOut )
1315         *toOut = to;
1316 }
1317
1318
1319 bool wxTextCtrl::IsEditable() const
1320 {
1321     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1322
1323 #ifdef __WXGTK20__
1324     if (m_windowStyle & wxTE_MULTILINE)
1325     {
1326         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1327     }
1328     else
1329     {
1330         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1331     }
1332 #else
1333     return GTK_EDITABLE(m_text)->editable;
1334 #endif
1335 }
1336
1337 bool wxTextCtrl::IsModified() const
1338 {
1339     return m_modified;
1340 }
1341
1342 void wxTextCtrl::Clear()
1343 {
1344     SetValue( wxT("") );
1345 }
1346
1347 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1348 {
1349     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1350
1351     if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
1352     {
1353         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1354         event.SetEventObject(this);
1355         event.SetString(GetValue());
1356         if (GetEventHandler()->ProcessEvent(event)) return;
1357     }
1358
1359     if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
1360     {
1361         // This will invoke the dialog default action, such
1362         // as the clicking the default button.
1363
1364         wxWindow *top_frame = m_parent;
1365         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1366             top_frame = top_frame->GetParent();
1367
1368         if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1369         {
1370             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1371
1372             if (window->default_widget)
1373             {
1374                 gtk_widget_activate (window->default_widget);
1375                 return;
1376             }
1377         }
1378     }
1379
1380     key_event.Skip();
1381 }
1382
1383 GtkWidget* wxTextCtrl::GetConnectWidget()
1384 {
1385     return GTK_WIDGET(m_text);
1386 }
1387
1388 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
1389 {
1390     if (m_windowStyle & wxTE_MULTILINE)
1391     {
1392 #ifdef __WXGTK20__
1393         return window == gtk_text_view_get_window( GTK_TEXT_VIEW( m_text ), GTK_TEXT_WINDOW_TEXT );  // pure guesswork
1394 #else
1395         return (window == GTK_TEXT(m_text)->text_area);
1396 #endif
1397     }
1398     else
1399     {
1400         return (window == GTK_ENTRY(m_text)->text_area);
1401     }
1402 }
1403
1404 // the font will change for subsequent text insertiongs
1405 bool wxTextCtrl::SetFont( const wxFont &font )
1406 {
1407     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1408
1409     if ( !wxTextCtrlBase::SetFont(font) )
1410     {
1411         // font didn't change, nothing to do
1412         return FALSE;
1413     }
1414
1415     if ( m_windowStyle & wxTE_MULTILINE )
1416     {
1417         SetUpdateFont(TRUE);
1418
1419         m_defaultStyle.SetFont(font);
1420
1421         ChangeFontGlobally();
1422     }
1423
1424     return TRUE;
1425 }
1426
1427 void wxTextCtrl::ChangeFontGlobally()
1428 {
1429     // this method is very inefficient and hence should be called as rarely as
1430     // possible!
1431     //
1432     // TODO: it can be implemented much more efficiently for GTK2
1433     wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE)
1434 #ifndef __WXGTK20__
1435                     && m_updateFont
1436 #endif // GTK+ 1.x
1437                     ,
1438                   _T("shouldn't be called for single line controls") );
1439
1440     wxString value = GetValue();
1441     if ( !value.IsEmpty() )
1442     {
1443         SetUpdateFont(FALSE);
1444
1445         Clear();
1446         AppendText(value);
1447     }
1448 }
1449
1450 #ifndef __WXGTK20__
1451
1452 void wxTextCtrl::UpdateFontIfNeeded()
1453 {
1454     if ( m_updateFont )
1455         ChangeFontGlobally();
1456 }
1457
1458 #endif // GTK+ 1.x
1459
1460 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1461 {
1462     if ( !wxControl::SetForegroundColour(colour) )
1463         return FALSE;
1464
1465     // update default fg colour too
1466     m_defaultStyle.SetTextColour(colour);
1467
1468     return TRUE;
1469 }
1470
1471 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1472 {
1473     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
1474
1475     if ( !wxControl::SetBackgroundColour( colour ) )
1476         return FALSE;
1477
1478     if (!m_widget->window)
1479         return FALSE;
1480
1481     if (!m_backgroundColour.Ok())
1482         return FALSE;
1483
1484     if (m_windowStyle & wxTE_MULTILINE)
1485     {
1486 #ifndef __WXGTK20__
1487         GdkWindow *window = GTK_TEXT(m_text)->text_area;
1488         if (!window)
1489             return FALSE;
1490         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1491         gdk_window_set_background( window, m_backgroundColour.GetColor() );
1492         gdk_window_clear( window );
1493 #endif
1494     }
1495
1496     // change active background color too
1497     m_defaultStyle.SetBackgroundColour( colour );
1498
1499     return TRUE;
1500 }
1501
1502 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1503 {
1504     if ( m_windowStyle & wxTE_MULTILINE )
1505     {
1506         if ( style.IsDefault() )
1507         {
1508             // nothing to do
1509             return TRUE;
1510         }
1511 #ifdef __WXGTK20__
1512         GtkTextBuffer *text_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
1513         gint l = gtk_text_buffer_get_char_count( text_buffer );
1514
1515         wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1516                      _T("invalid range in wxTextCtrl::SetStyle") );
1517
1518         GtkTextIter starti, endi;
1519         gtk_text_buffer_get_iter_at_offset( text_buffer, &starti, start );
1520         gtk_text_buffer_get_iter_at_offset( text_buffer, &endi, end );
1521
1522         // use the attributes from style which are set in it and fall back
1523         // first to the default style and then to the text control default
1524         // colours for the others
1525         wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
1526
1527         PangoFontDescription *font_description = attr.HasFont()
1528                              ? attr.GetFont().GetNativeFontInfo()->description
1529                              : NULL;
1530
1531         GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor()
1532                                                : NULL;
1533
1534         GdkColor *colBg = attr.HasBackgroundColour()
1535                             ? attr.GetBackgroundColour().GetColor()
1536                             : NULL;
1537
1538         GtkTextTag *tag;
1539         tag = gtk_text_buffer_create_tag( text_buffer, NULL, "font-desc", font_description,
1540                                          "foreground-gdk", colFg,
1541                                          "background-gdk", colBg, NULL );
1542         gtk_text_buffer_apply_tag( text_buffer, tag, &starti, &endi );
1543
1544          return TRUE;
1545 #else
1546         // VERY dirty way to do that - removes the required text and re-adds it
1547         // with styling (FIXME)
1548
1549         gint l = gtk_text_get_length( GTK_TEXT(m_text) );
1550
1551         wxCHECK_MSG( start >= 0 && end <= l, FALSE,
1552                      _T("invalid range in wxTextCtrl::SetStyle") );
1553
1554         gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) );
1555         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end );
1556         wxString tmp(text,*wxConvCurrent);
1557         g_free( text );
1558
1559         gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end );
1560         gtk_editable_set_position( GTK_EDITABLE(m_text), start );
1561
1562 #if wxUSE_UNICODE
1563         wxWX2MBbuf buf = tmp.mbc_str();
1564         const char *txt = buf;
1565         size_t txtlen = strlen(buf);
1566 #else
1567         const char *txt = tmp;
1568         size_t txtlen = tmp.length();
1569 #endif
1570
1571         // use the attributes from style which are set in it and fall back
1572         // first to the default style and then to the text control default
1573         // colours for the others
1574         wxGtkTextInsert(m_text,
1575                         wxTextAttr::Combine(style, m_defaultStyle, this),
1576                         txt,
1577                         txtlen);
1578
1579         /* does not seem to help under GTK+ 1.2 !!!
1580         gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */
1581         SetInsertionPoint( old_pos );
1582 #endif
1583         return TRUE;
1584     }
1585     else // singe line
1586     {
1587         // cannot do this for GTK+'s Entry widget
1588         return FALSE;
1589     }
1590 }
1591
1592 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1593 {
1594     gtk_widget_modify_style(m_text, style);
1595 }
1596
1597 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1598 {
1599     Cut();
1600 }
1601
1602 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1603 {
1604     Copy();
1605 }
1606
1607 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1608 {
1609     Paste();
1610 }
1611
1612 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1613 {
1614     Undo();
1615 }
1616
1617 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1618 {
1619     Redo();
1620 }
1621
1622 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1623 {
1624     event.Enable( CanCut() );
1625 }
1626
1627 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1628 {
1629     event.Enable( CanCopy() );
1630 }
1631
1632 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1633 {
1634     event.Enable( CanPaste() );
1635 }
1636
1637 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1638 {
1639     event.Enable( CanUndo() );
1640 }
1641
1642 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1643 {
1644     event.Enable( CanRedo() );
1645 }
1646
1647 void wxTextCtrl::OnInternalIdle()
1648 {
1649     wxCursor cursor = m_cursor;
1650     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1651
1652     if (cursor.Ok())
1653     {
1654 #ifndef __WXGTK20__
1655         GdkWindow *window = (GdkWindow*) NULL;
1656         if (HasFlag(wxTE_MULTILINE))
1657             window = GTK_TEXT(m_text)->text_area;
1658         else
1659             window = GTK_ENTRY(m_text)->text_area;
1660
1661         if (window)
1662             gdk_window_set_cursor( window, cursor.GetCursor() );
1663
1664         if (!g_globalCursor.Ok())
1665             cursor = *wxSTANDARD_CURSOR;
1666
1667         window = m_widget->window;
1668         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1669             gdk_window_set_cursor( window, cursor.GetCursor() );
1670 #endif
1671     }
1672
1673     if (g_delayedFocus == this)
1674     {
1675         if (GTK_WIDGET_REALIZED(m_widget))
1676         {
1677             gtk_widget_grab_focus( m_widget );
1678             g_delayedFocus = NULL;
1679         }
1680     }
1681
1682     if (wxUpdateUIEvent::CanUpdate(this))
1683         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1684 }
1685
1686 wxSize wxTextCtrl::DoGetBestSize() const
1687 {
1688     // FIXME should be different for multi-line controls...
1689     wxSize ret( wxControl::DoGetBestSize() );
1690     wxSize best(80, ret.y);
1691     CacheBestSize(best);
1692     return best;
1693 }
1694
1695 // ----------------------------------------------------------------------------
1696 // freeze/thaw
1697 // ----------------------------------------------------------------------------
1698
1699 void wxTextCtrl::Freeze()
1700 {
1701 #ifndef __WXGTK20__
1702     if ( HasFlag(wxTE_MULTILINE) )
1703     {
1704         gtk_text_freeze(GTK_TEXT(m_text));
1705     }
1706 #endif
1707 }
1708
1709 void wxTextCtrl::Thaw()
1710 {
1711 #ifndef __WXGTK20__
1712     if ( HasFlag(wxTE_MULTILINE) )
1713     {
1714         GTK_TEXT(m_text)->vadj->value = 0.0;
1715
1716         gtk_text_thaw(GTK_TEXT(m_text));
1717     }
1718 #endif
1719 }
1720
1721 // ----------------------------------------------------------------------------
1722 // scrolling
1723 // ----------------------------------------------------------------------------
1724
1725 GtkAdjustment *wxTextCtrl::GetVAdj() const
1726 {
1727     if ( !IsMultiLine() )
1728         return NULL;
1729
1730 #ifdef __WXGTK20__
1731     return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
1732 #else
1733     return GTK_TEXT(m_text)->vadj;
1734 #endif
1735 }
1736
1737 bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
1738 {
1739     float value = adj->value + diff;
1740
1741     if ( value < 0 )
1742         value = 0;
1743
1744     float upper = adj->upper - adj->page_size;
1745     if ( value > upper )
1746         value = upper;
1747
1748     // did we noticeably change the scroll position?
1749     if ( fabs(adj->value - value) < 0.2 )
1750     {
1751         // well, this is what Robert does in wxScrollBar, so it must be good...
1752         return FALSE;
1753     }
1754
1755     adj->value = value;
1756
1757 #ifdef __WXGTK20__
1758     gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
1759 #else
1760     gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
1761 #endif
1762
1763     return TRUE;
1764 }
1765
1766 bool wxTextCtrl::ScrollLines(int lines)
1767 {
1768     GtkAdjustment *adj = GetVAdj();
1769     if ( !adj )
1770         return FALSE;
1771
1772 #ifdef __WXGTK20__
1773     int diff = (int)ceil(lines*adj->step_increment);
1774 #else
1775     // this is hardcoded to 10 in GTK+ 1.2 (great idea)
1776     int diff = 10*lines;
1777 #endif
1778
1779     return DoScroll(adj, diff);
1780 }
1781
1782 bool wxTextCtrl::ScrollPages(int pages)
1783 {
1784     GtkAdjustment *adj = GetVAdj();
1785     if ( !adj )
1786         return FALSE;
1787
1788     return DoScroll(adj, (int)ceil(pages*adj->page_increment));
1789 }
1790
1791
1792 // static
1793 wxVisualAttributes
1794 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1795 {
1796     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1797 }