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 #ifdef __GNUG__
  11 #pragma implementation "textctrl.h"
  12 #endif
  13
  14 #include "wx/textctrl.h"
  15 #include "wx/utils.h"
  16 #include "wx/intl.h"
  17 #include "wx/settings.h"
  18
  19 #include <sys/types.h>
  20 #include <sys/stat.h>
  21 #include <ctype.h>
  22
  23 #include "gdk/gdk.h"
  24 #include "gtk/gtk.h"
  25 #include "gdk/gdkkeysyms.h"
  26
  27 //-----------------------------------------------------------------------------
  28 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 //-----------------------------------------------------------------------------
  35 // data
  36 //-----------------------------------------------------------------------------
  37
  38 extern bool       g_blockEventsOnDrag;
  39 extern wxCursor   g_globalCursor;
  40
  41 //-----------------------------------------------------------------------------
  42 //  "changed"
  43 //-----------------------------------------------------------------------------
  44
  45 static void
  46 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  47 {
  48     if (!win->m_hasVMT) return;
  49
  50     if (g_isIdle)
  51         wxapp_install_idle_handler();
  52
  53     win->SetModified();
  54
  55     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
  56     event.SetString( win->GetValue() );
  57     event.SetEventObject( win );
  58     win->GetEventHandler()->ProcessEvent( event );
  59 }
  60
  61 //-----------------------------------------------------------------------------
  62 // "changed" from vertical scrollbar
  63 //-----------------------------------------------------------------------------
  64
  65 static void
  66 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  67 {
  68     if (!win->m_hasVMT) return;
  69
  70     if (g_isIdle)
  71         wxapp_install_idle_handler();
  72
  73     win->CalculateScrollbar();
  74 }
  75
  76 //-----------------------------------------------------------------------------
  77 //  wxTextCtrl
  78 //-----------------------------------------------------------------------------
  79
  80 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  81
  82 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  83     EVT_CHAR(wxTextCtrl::OnChar)
  84
  85     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
  86     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
  87     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
  88     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
  89     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
  90
  91     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
  92     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
  93     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
  94     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
  95     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
  96 END_EVENT_TABLE()
  97
  98 wxTextCtrl::wxTextCtrl()
  99 {
 100     m_modified = FALSE;
 101 }
 102
 103 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 104                         wxWindowID id,
 105                         const wxString &value,
 106                         const wxPoint &pos,
 107                         const wxSize &size,
 108                         long style,
 109                         const wxValidator& validator,
 110                         const wxString &name )
 111 {
 112     m_modified = FALSE;
 113     Create( parent, id, value, pos, size, style, validator, name );
 114 }
 115
 116 bool wxTextCtrl::Create( wxWindow *parent,
 117                          wxWindowID id,
 118                          const wxString &value,
 119                          const wxPoint &pos,
 120                          const wxSize &size,
 121                          long style,
 122                          const wxValidator& validator,
 123                          const wxString &name )
 124 {
 125     m_needParent = TRUE;
 126     m_acceptsFocus = TRUE;
 127
 128     if (!PreCreation( parent, pos, size ) ||
 129         !CreateBase( parent, id, pos, size, style, validator, name ))
 130     {
 131         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 132         return FALSE;
 133     }
 134
 135
 136     m_vScrollbarVisible = FALSE;
 137
 138     bool multi_line = (style & wxTE_MULTILINE) != 0;
 139     if (multi_line)
 140     {
 141 #if (GTK_MINOR_VERSION > 2)
 142         /* a multi-line edit control: create a vertical scrollbar by default and
 143            horizontal if requested */
 144         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 145 #else
 146         bool bHasHScrollbar = FALSE;
 147 #endif
 148
 149         /* create our control ... */
 150         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 151
 152         /* ... and put into the upper left hand corner of the table */
 153         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 154         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 155         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 156                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 157                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 158                        0, 0);
 159
 160         /* always wrap words */
 161         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 162
 163 #if (GTK_MINOR_VERSION > 2)
 164         /* put the horizontal scrollbar in the lower left hand corner */
 165         if (bHasHScrollbar)
 166         {
 167             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 168             GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS );
 169             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 170                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 171                        GTK_FILL,
 172                        0, 0);
 173             gtk_widget_show(hscrollbar);
 174
 175             /* don't wrap lines, otherwise we wouldn't need the scrollbar */
 176             gtk_text_set_line_wrap( GTK_TEXT(m_text), FALSE );
 177         }
 178 #endif
 179
 180         /* finally, put the vertical scrollbar in the upper right corner */
 181         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 182         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 183         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 184                      GTK_FILL,
 185                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 186                      0, 0);
 187     }
 188     else
 189     {
 190         /* a single-line text control: no need for scrollbars */
 191         m_widget =
 192           m_text = gtk_entry_new();
 193     }
 194
 195     m_parent->DoAddChild( this );
 196
 197     PostCreation();
 198
 199     SetFont( parent->GetFont() );
 200
 201     wxSize size_best( DoGetBestSize() );
 202     wxSize new_size( size );
 203     if (new_size.x == -1)
 204         new_size.x = size_best.x;
 205     if (new_size.y == -1)
 206         new_size.y = size_best.y;
 207     if ((new_size.x != size.x) || (new_size.y != size.y))
 208         SetSize( new_size.x, new_size.y );
 209
 210     if (multi_line)
 211         gtk_widget_show(m_text);
 212
 213     /* we want to be notified about text changes */
 214     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 215       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 216
 217     if (multi_line)
 218     {
 219         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 220           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 221     }
 222
 223     if (!value.IsEmpty())
 224     {
 225         gint tmp = 0;
 226
 227 #if GTK_MINOR_VERSION == 0
 228         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 229         // gtk_editable_insert_text()
 230         gtk_widget_realize(m_text);
 231 #endif // GTK 1.0
 232
 233 #if wxUSE_UNICODE
 234         wxWX2MBbuf val = value.mbc_str();
 235         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 236 #else // !Unicode
 237         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 238 #endif // Unicode/!Unicode
 239
 240         if (multi_line)
 241         {
 242             /* bring editable's cursor uptodate. bug in GTK. */
 243
 244             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 245         }
 246     }
 247
 248     if (style & wxTE_PASSWORD)
 249     {
 250         if (!multi_line)
 251             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 252     }
 253
 254     if (style & wxTE_READONLY)
 255     {
 256         if (!multi_line)
 257             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 258     }
 259     else
 260     {
 261         if (multi_line)
 262             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 263     }
 264
 265     SetBackgroundColour( wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW) );
 266     SetForegroundColour( parent->GetForegroundColour() );
 267
 268     m_cursor = wxCursor( wxCURSOR_IBEAM );
 269
 270     Show( TRUE );
 271
 272     return TRUE;
 273 }
 274
 275 void wxTextCtrl::CalculateScrollbar()
 276 {
 277     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 278
 279     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 280
 281     if (adj->upper - adj->page_size < 0.8)
 282     {
 283         if (m_vScrollbarVisible)
 284         {
 285             gtk_widget_hide( m_vScrollbar );
 286             m_vScrollbarVisible = FALSE;
 287         }
 288     }
 289     else
 290     {
 291         if (!m_vScrollbarVisible)
 292         {
 293             gtk_widget_show( m_vScrollbar );
 294             m_vScrollbarVisible = TRUE;
 295         }
 296     }
 297 }
 298
 299 wxString wxTextCtrl::GetValue() const
 300 {
 301     wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
 302
 303     wxString tmp;
 304     if (m_windowStyle & wxTE_MULTILINE)
 305     {
 306         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 307         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 308         tmp = wxString(text,*wxConvCurrent);
 309         g_free( text );
 310     }
 311     else
 312     {
 313         tmp = wxString(gtk_entry_get_text( GTK_ENTRY(m_text) ),*wxConvCurrent);
 314     }
 315     return tmp;
 316 }
 317
 318 void wxTextCtrl::SetValue( const wxString &value )
 319 {
 320     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 321
 322     wxString tmp = wxT("");
 323     if (!value.IsNull()) tmp = value;
 324     if (m_windowStyle & wxTE_MULTILINE)
 325     {
 326         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 327         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 328         len = 0;
 329 #if wxUSE_UNICODE
 330         wxWX2MBbuf tmpbuf = tmp.mbc_str();
 331         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len );
 332 #else
 333         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp.mbc_str(), tmp.Length(), &len );
 334 #endif
 335     }
 336     else
 337     {
 338         gtk_entry_set_text( GTK_ENTRY(m_text), tmp.mbc_str() );
 339     }
 340
 341     // GRG, Jun/2000: Changed this after a lot of discussion in
 342     //   the lists. wxWindows 2.2 will have a set of flags to
 343     //   customize this behaviour.
 344     SetInsertionPoint(0);
 345
 346     m_modified = FALSE;
 347 }
 348
 349 void wxTextCtrl::WriteText( const wxString &text )
 350 {
 351     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 352
 353     if (text.IsEmpty()) return;
 354
 355     if (m_windowStyle & wxTE_MULTILINE)
 356     {
 357         /* this moves the cursor pos to behind the inserted text */
 358         gint len = GTK_EDITABLE(m_text)->current_pos;
 359
 360 #if wxUSE_UNICODE
 361         wxWX2MBbuf buf = text.mbc_str();
 362         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 363 #else
 364         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 365 #endif
 366
 367         /* bring editable's cursor uptodate. bug in GTK. */
 368         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 369     }
 370     else
 371     {
 372         /* this moves the cursor pos to behind the inserted text */
 373         gint len = GTK_EDITABLE(m_text)->current_pos;
 374 #if wxUSE_UNICODE
 375         wxWX2MBbuf buf = text.mbc_str();
 376         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 377 #else
 378         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 379 #endif
 380
 381         /* bring editable's cursor uptodate. bug in GTK. */
 382         GTK_EDITABLE(m_text)->current_pos += text.Len();
 383
 384         /* bring entry's cursor uptodate. bug in GTK. */
 385         gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos );
 386     }
 387 }
 388
 389 void wxTextCtrl::AppendText( const wxString &text )
 390 {
 391     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 392
 393     if (text.IsEmpty()) return;
 394
 395     if (m_windowStyle & wxTE_MULTILINE)
 396     {
 397         bool hasSpecialAttributes = m_font.Ok() ||
 398                                     m_foregroundColour.Ok() ||
 399                                     m_backgroundColour.Ok();
 400         if ( hasSpecialAttributes )
 401         {
 402              gtk_text_insert( GTK_TEXT(m_text),
 403                               m_font.GetInternalFont(),
 404                               m_foregroundColour.GetColor(),
 405                               m_backgroundColour.GetColor(),
 406                               text.mbc_str(), text.length());
 407
 408         }
 409         else
 410         {
 411             /* we'll insert at the last position */
 412             gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 413 #if wxUSE_UNICODE
 414             wxWX2MBbuf buf = text.mbc_str();
 415             gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 416 #else
 417             gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 418 #endif
 419         }
 420
 421         /* bring editable's cursor uptodate. bug in GTK. */
 422         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 423     }
 424     else
 425     {
 426         gtk_entry_append_text( GTK_ENTRY(m_text), text.mbc_str() );
 427     }
 428 }
 429
 430 wxString wxTextCtrl::GetLineText( long lineNo ) const
 431 {
 432   if (m_windowStyle & wxTE_MULTILINE)
 433   {
 434     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 435     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 436
 437     if (text)
 438     {
 439         wxString buf(wxT(""));
 440         long i;
 441         int currentLine = 0;
 442         for (i = 0; currentLine != lineNo && text[i]; i++ )
 443           if (text[i] == '\n')
 444             currentLine++;
 445         // Now get the text
 446         int j;
 447         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 448             buf += text[i];
 449
 450         g_free( text );
 451         return buf;
 452     }
 453     else
 454       return wxEmptyString;
 455   }
 456   else
 457   {
 458     if (lineNo == 0) return GetValue();
 459     return wxEmptyString;
 460   }
 461 }
 462
 463 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 464 {
 465   /* If you implement this, don't forget to update the documentation!
 466    * (file docs/latex/wx/text.tex) */
 467     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 468 }
 469
 470 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 471 {
 472     if ( m_windowStyle & wxTE_MULTILINE )
 473     {
 474         wxString text = GetValue();
 475
 476         // cast to prevent warning. But pos really should've been unsigned.
 477         if( (unsigned long)pos > text.Len()  )
 478             return FALSE;
 479
 480         *x=0;   // First Col
 481         *y=0;   // First Line
 482
 483         const wxChar* stop = text.c_str() + pos;
 484         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 485         {
 486             if (*p == wxT('\n'))
 487             {
 488                 (*y)++;
 489                 *x=0;
 490             }
 491             else
 492                 (*x)++;
 493         }
 494     }
 495     else // single line control
 496     {
 497         if ( pos <= GTK_ENTRY(m_text)->text_length )
 498         {
 499             *y = 0;
 500             *x = pos;
 501         }
 502         else
 503         {
 504             // index out of bounds
 505             return FALSE;
 506         }
 507     }
 508
 509     return TRUE;
 510 }
 511
 512 long wxTextCtrl::XYToPosition(long x, long y ) const
 513 {
 514     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 515
 516     long pos=0;
 517     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 518
 519     pos += x;
 520     return pos;
 521 }
 522
 523 int wxTextCtrl::GetLineLength(long lineNo) const
 524 {
 525     wxString str = GetLineText (lineNo);
 526     return (int) str.Length();
 527 }
 528
 529 int wxTextCtrl::GetNumberOfLines() const
 530 {
 531     if (m_windowStyle & wxTE_MULTILINE)
 532     {
 533         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 534         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 535
 536         if (text)
 537         {
 538             int currentLine = 0;
 539             for (int i = 0; i < len; i++ )
 540             {
 541                 if (text[i] == '\n')
 542                     currentLine++;
 543             }
 544             g_free( text );
 545
 546             // currentLine is 0 based, add 1 to get number of lines
 547             return currentLine + 1;
 548         }
 549         else
 550         {
 551             return 0;
 552         }
 553     }
 554     else
 555     {
 556         return 1;
 557     }
 558 }
 559
 560 void wxTextCtrl::SetInsertionPoint( long pos )
 561 {
 562     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 563
 564     if (m_windowStyle & wxTE_MULTILINE)
 565     {
 566         /* seems to be broken in GTK 1.0.X:
 567            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 568
 569         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 570           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 571
 572         /* we fake a set_point by inserting and deleting. as the user
 573            isn't supposed to get to know about thos non-sense, we
 574            disconnect so that no events are sent to the user program. */
 575
 576         gint tmp = (gint)pos;
 577         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 578         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 579
 580         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 581           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 582
 583         /* bring editable's cursor uptodate. another bug in GTK. */
 584
 585         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 586     }
 587     else
 588     {
 589         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 590
 591         /* bring editable's cursor uptodate. bug in GTK. */
 592
 593         GTK_EDITABLE(m_text)->current_pos = (guint32)pos;
 594     }
 595 }
 596
 597 void wxTextCtrl::SetInsertionPointEnd()
 598 {
 599     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 600
 601     if (m_windowStyle & wxTE_MULTILINE)
 602         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 603     else
 604         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 605 }
 606
 607 void wxTextCtrl::SetEditable( bool editable )
 608 {
 609     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 610
 611     if (m_windowStyle & wxTE_MULTILINE)
 612         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 613     else
 614         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 615 }
 616
 617 bool wxTextCtrl::Enable( bool enable )
 618 {
 619     if (!wxWindowBase::Enable(enable))
 620     {
 621         // nothing to do
 622         return FALSE;
 623     }
 624
 625     if (m_windowStyle & wxTE_MULTILINE)
 626     {
 627         gtk_text_set_editable( GTK_TEXT(m_text), enable );
 628     }
 629     else
 630     {
 631         gtk_widget_set_sensitive( m_text, enable );
 632     }
 633
 634     return TRUE;
 635 }
 636
 637 void wxTextCtrl::DiscardEdits()
 638 {
 639     m_modified = FALSE;
 640 }
 641
 642 void wxTextCtrl::SetSelection( long from, long to )
 643 {
 644     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 645
 646     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 647 }
 648
 649 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 650 {
 651 //    SetInsertionPoint( pos );
 652 }
 653
 654 long wxTextCtrl::GetInsertionPoint() const
 655 {
 656     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
 657
 658     return (long) GTK_EDITABLE(m_text)->current_pos;
 659 }
 660
 661 long wxTextCtrl::GetLastPosition() const
 662 {
 663     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
 664
 665     int pos = 0;
 666     if (m_windowStyle & wxTE_MULTILINE)
 667         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 668     else
 669         pos = GTK_ENTRY(m_text)->text_length;
 670
 671     return (long)pos;
 672 }
 673
 674 void wxTextCtrl::Remove( long from, long to )
 675 {
 676     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 677
 678     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 679 }
 680
 681 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 682 {
 683     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 684
 685     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 686
 687     if (!value.IsEmpty())
 688     {
 689         gint pos = (gint)from;
 690 #if wxUSE_UNICODE
 691         wxWX2MBbuf buf = value.mbc_str();
 692         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
 693 #else
 694         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 695 #endif
 696     }
 697 }
 698
 699 void wxTextCtrl::Cut()
 700 {
 701     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 702
 703 #if (GTK_MINOR_VERSION > 0)
 704     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 705 #else
 706     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 707 #endif
 708 }
 709
 710 void wxTextCtrl::Copy()
 711 {
 712     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 713
 714 #if (GTK_MINOR_VERSION > 0)
 715     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 716 #else
 717     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 718 #endif
 719 }
 720
 721 void wxTextCtrl::Paste()
 722 {
 723     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 724
 725 #if (GTK_MINOR_VERSION > 0)
 726     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 727 #else
 728     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 729 #endif
 730 }
 731
 732 bool wxTextCtrl::CanCopy() const
 733 {
 734     // Can copy if there's a selection
 735     long from, to;
 736     GetSelection(& from, & to);
 737     return (from != to) ;
 738 }
 739
 740 bool wxTextCtrl::CanCut() const
 741 {
 742     // Can cut if there's a selection
 743     long from, to;
 744     GetSelection(& from, & to);
 745     return (from != to) ;
 746 }
 747
 748 bool wxTextCtrl::CanPaste() const
 749 {
 750     return IsEditable() ;
 751 }
 752
 753 // Undo/redo
 754 void wxTextCtrl::Undo()
 755 {
 756     // TODO
 757     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
 758 }
 759
 760 void wxTextCtrl::Redo()
 761 {
 762     // TODO
 763     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
 764 }
 765
 766 bool wxTextCtrl::CanUndo() const
 767 {
 768     // TODO
 769     wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
 770     return FALSE;
 771 }
 772
 773 bool wxTextCtrl::CanRedo() const
 774 {
 775     // TODO
 776     wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
 777     return FALSE;
 778 }
 779
 780 // If the return values from and to are the same, there is no
 781 // selection.
 782 void wxTextCtrl::GetSelection(long* from, long* to) const
 783 {
 784     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 785
 786     if (!(GTK_EDITABLE(m_text)->has_selection))
 787     {
 788         long i = GetInsertionPoint();
 789         if (from) *from = i;
 790         if (to)   *to = i;
 791         return;
 792     }
 793
 794     if (from) *from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
 795     if (to)   *to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
 796 }
 797
 798 bool wxTextCtrl::IsEditable() const
 799 {
 800     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 801
 802     return GTK_EDITABLE(m_text)->editable;
 803 }
 804
 805 bool wxTextCtrl::IsModified() const
 806 {
 807     return m_modified;
 808 }
 809
 810 void wxTextCtrl::Clear()
 811 {
 812     SetValue( wxT("") );
 813 }
 814
 815 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 816 {
 817     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 818
 819     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 820     {
 821         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 822         event.SetEventObject(this);
 823         event.SetString(GetValue());
 824         if (GetEventHandler()->ProcessEvent(event)) return;
 825     }
 826
 827     if ((key_event.KeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
 828     {
 829         wxWindow *top_frame = m_parent;
 830         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 831             top_frame = top_frame->GetParent();
 832         GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
 833
 834         if (window->default_widget)
 835         {
 836             gtk_widget_activate (window->default_widget);
 837             return;
 838         }
 839     }
 840
 841     key_event.Skip();
 842 }
 843
 844 GtkWidget* wxTextCtrl::GetConnectWidget()
 845 {
 846     return GTK_WIDGET(m_text);
 847 }
 848
 849 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 850 {
 851     if (m_windowStyle & wxTE_MULTILINE)
 852         return (window == GTK_TEXT(m_text)->text_area);
 853     else
 854         return (window == GTK_ENTRY(m_text)->text_area);
 855 }
 856
 857 // the font will change for subsequent text insertiongs
 858 bool wxTextCtrl::SetFont( const wxFont &font )
 859 {
 860     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 861
 862     if ( !wxWindowBase::SetFont(font) )
 863     {
 864         // font didn't change, nothing to do
 865         return FALSE;
 866     }
 867
 868     if ( m_windowStyle & wxTE_MULTILINE )
 869     {
 870         // for compatibility with other ports: the font is a global controls
 871         // characteristic, so change the font globally
 872         wxString value = GetValue();
 873         if ( !value.IsEmpty() )
 874         {
 875             Clear();
 876
 877             AppendText(value);
 878         }
 879     }
 880
 881     return TRUE;
 882 }
 883
 884 bool wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 885 {
 886     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 887
 888     // doesn't work
 889     return FALSE;
 890 }
 891
 892 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 893 {
 894     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 895
 896     wxControl::SetBackgroundColour( colour );
 897
 898     if (!m_widget->window)
 899         return FALSE;
 900
 901     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 902     if (sysbg.Red() == colour.Red() &&
 903         sysbg.Green() == colour.Green() &&
 904         sysbg.Blue() == colour.Blue())
 905     {
 906         return FALSE; // FIXME or TRUE?
 907     }
 908
 909     if (!m_backgroundColour.Ok())
 910         return FALSE;
 911
 912     if (m_windowStyle & wxTE_MULTILINE)
 913     {
 914         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 915         if (!window)
 916             return FALSE;
 917         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 918         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 919         gdk_window_clear( window );
 920     }
 921
 922     return TRUE;
 923 }
 924
 925 void wxTextCtrl::ApplyWidgetStyle()
 926 {
 927     if (m_windowStyle & wxTE_MULTILINE)
 928     {
 929         // how ?
 930     }
 931     else
 932     {
 933         SetWidgetStyle();
 934         gtk_widget_set_style( m_text, m_widgetStyle );
 935     }
 936 }
 937
 938 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
 939 {
 940     Cut();
 941 }
 942
 943 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
 944 {
 945     Copy();
 946 }
 947
 948 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
 949 {
 950     Paste();
 951 }
 952
 953 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
 954 {
 955     Undo();
 956 }
 957
 958 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
 959 {
 960     Redo();
 961 }
 962
 963 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
 964 {
 965     event.Enable( CanCut() );
 966 }
 967
 968 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
 969 {
 970     event.Enable( CanCopy() );
 971 }
 972
 973 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
 974 {
 975     event.Enable( CanPaste() );
 976 }
 977
 978 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
 979 {
 980     event.Enable( CanUndo() );
 981 }
 982
 983 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
 984 {
 985     event.Enable( CanRedo() );
 986 }
 987
 988 void wxTextCtrl::OnInternalIdle()
 989 {
 990     wxCursor cursor = m_cursor;
 991     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 992
 993     if (cursor.Ok())
 994     {
 995         GdkWindow *window = (GdkWindow*) NULL;
 996         if (HasFlag(wxTE_MULTILINE))
 997             window = GTK_TEXT(m_text)->text_area;
 998         else
 999             window = GTK_ENTRY(m_text)->text_area;
1000
1001         if (window)
1002             gdk_window_set_cursor( window, cursor.GetCursor() );
1003
1004         if (!g_globalCursor.Ok())
1005             cursor = *wxSTANDARD_CURSOR;
1006
1007         window = m_widget->window;
1008         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
1009             gdk_window_set_cursor( window, cursor.GetCursor() );
1010     }
1011
1012     UpdateWindowUI();
1013 }
1014
1015 wxSize wxTextCtrl::DoGetBestSize() const
1016 {
1017     // FIXME should be different for multi-line controls...
1018     wxSize ret( wxControl::DoGetBestSize() );
1019     return wxSize(80, ret.y);
1020 }