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 // data
  29 //-----------------------------------------------------------------------------
  30
  31 extern bool   g_blockEventsOnDrag;
  32
  33 //-----------------------------------------------------------------------------
  34 //  "changed"
  35 //-----------------------------------------------------------------------------
  36
  37 static void
  38 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  39 {
  40     win->SetModified();
  41
  42     win->CalculateScrollbar();
  43
  44     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->m_windowId );
  45     event.SetString( copystring(win->GetValue()) );
  46     event.SetEventObject( win );
  47     win->GetEventHandler()->ProcessEvent( event );
  48     delete[] event.GetString();
  49 }
  50
  51 //-----------------------------------------------------------------------------
  52 // "size_allocate"
  53 //-----------------------------------------------------------------------------
  54
  55 static void
  56 gtk_text_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* WXUNUSED(alloc), wxTextCtrl *win )
  57 {
  58     win->CalculateScrollbar();
  59 }
  60
  61 //-----------------------------------------------------------------------------
  62 //  wxTextCtrl
  63 //-----------------------------------------------------------------------------
  64
  65 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  66
  67 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  68     EVT_CHAR(wxTextCtrl::OnChar)
  69 END_EVENT_TABLE()
  70
  71 #ifndef NO_TEXT_WINDOW_STREAM
  72 wxTextCtrl::wxTextCtrl() : streambuf()
  73 {
  74     if (allocate()) setp(base(),ebuf());
  75
  76     m_modified = FALSE;
  77 }
  78 #else
  79 wxTextCtrl::wxTextCtrl()
  80 {
  81     m_modified = FALSE;
  82 }
  83 #endif
  84
  85 #ifndef NO_TEXT_WINDOW_STREAM
  86 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  87       const wxPoint &pos, const wxSize &size,
  88       int style, const wxValidator& validator, const wxString &name ) : streambuf()
  89 {
  90     if (allocate()) setp(base(),ebuf());
  91
  92     m_modified = FALSE;
  93     Create( parent, id, value, pos, size, style, validator, name );
  94 }
  95 #else
  96 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  97       const wxPoint &pos, const wxSize &size,
  98       int style, const wxValidator& validator, const wxString &name )
  99 {
 100     m_modified = FALSE;
 101     Create( parent, id, value, pos, size, style, validator, name );
 102 }
 103 #endif
 104
 105 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
 106       const wxPoint &pos, const wxSize &size,
 107       int style, const wxValidator& validator, const wxString &name )
 108 {
 109     m_needParent = TRUE;
 110     m_acceptsFocus = TRUE;
 111
 112     PreCreation( parent, id, pos, size, style, name );
 113
 114     SetValidator( validator );
 115
 116     m_vScrollbarVisible = TRUE;
 117
 118     bool multi_line = (style & wxTE_MULTILINE) != 0;
 119     if ( multi_line )
 120     {
 121         // a multi-line edit control: create a vertical scrollbar by default and
 122         // horizontal if requested
 123         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 124
 125         // create our control...
 126         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 127
 128         // ... and put into the upper left hand corner of the table
 129         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 130         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 131
 132         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 133                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 134                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 135                        0, 0);
 136
 137         // put the horizontal scrollbar in the lower left hand corner
 138         if (bHasHScrollbar)
 139         {
 140             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 141             GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS );
 142
 143             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 144                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
 145                        GTK_FILL,
 146                        0, 0);
 147             gtk_widget_show(hscrollbar);
 148         }
 149
 150         // finally, put the vertical scrollbar in the upper right corner
 151         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 152         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 153
 154         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 155                      GTK_FILL,
 156                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 157                      0, 0);
 158         gtk_widget_show( m_vScrollbar );
 159
 160         gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 161           GTK_SIGNAL_FUNC(gtk_text_size_callback), (gpointer)this );
 162     }
 163     else
 164     {
 165         // a single-line text control: no need for scrollbars
 166         m_widget =
 167           m_text = gtk_entry_new();
 168     }
 169
 170     wxSize newSize = size;
 171     if (newSize.x == -1) newSize.x = 80;
 172     if (newSize.y == -1) newSize.y = 26;
 173     SetSize( newSize.x, newSize.y );
 174
 175     m_parent->AddChild( this );
 176
 177     (m_parent->m_insertCallback)( m_parent, this );
 178
 179     PostCreation();
 180
 181     if (multi_line)
 182     {
 183         gtk_widget_realize(m_text);
 184         gtk_widget_show(m_text);
 185     }
 186
 187     // we want to be notified about text changes
 188     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 189       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 190
 191     if (!value.IsEmpty())
 192     {
 193         gint tmp = 0;
 194         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 195
 196         if (multi_line)
 197         {
 198             /* bring editable's cursor uptodate. bug in GTK. */
 199
 200             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 201         }
 202     }
 203
 204     if (style & wxTE_PASSWORD)
 205     {
 206         if (!multi_line)
 207             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 208     }
 209
 210     if (style & wxTE_READONLY)
 211     {
 212         if (!multi_line)
 213             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 214     }
 215     else
 216     {
 217         if (multi_line)
 218             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 219     }
 220
 221     Show( TRUE );
 222
 223     SetBackgroundColour( parent->GetBackgroundColour() );
 224     SetForegroundColour( parent->GetForegroundColour() );
 225
 226     return TRUE;
 227 }
 228
 229 void wxTextCtrl::CalculateScrollbar()
 230 {
 231     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 232
 233     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 234
 235     if (adj->upper - adj->page_size < 0.8)
 236     {
 237         if (m_vScrollbarVisible)
 238         {
 239         gtk_widget_hide( m_vScrollbar );
 240
 241         m_vScrollbarVisible = FALSE;
 242         }
 243     }
 244     else
 245     {
 246         if (!m_vScrollbarVisible)
 247         {
 248         gtk_widget_show( m_vScrollbar );
 249
 250         m_vScrollbarVisible = TRUE;
 251         }
 252     }
 253 }
 254
 255 wxString wxTextCtrl::GetValue() const
 256 {
 257     wxCHECK_MSG( m_text != NULL, "", "invalid text ctrl" );
 258
 259     wxString tmp;
 260     if (m_windowStyle & wxTE_MULTILINE)
 261     {
 262         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 263         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 264         tmp = text;
 265         g_free( text );
 266     }
 267     else
 268     {
 269         tmp = gtk_entry_get_text( GTK_ENTRY(m_text) );
 270     }
 271     return tmp;
 272 }
 273
 274 void wxTextCtrl::SetValue( const wxString &value )
 275 {
 276     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 277
 278     wxString tmp = "";
 279     if (!value.IsNull()) tmp = value;
 280     if (m_windowStyle & wxTE_MULTILINE)
 281     {
 282         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 283         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 284         len = 0;
 285         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp, tmp.Length(), &len );
 286     }
 287     else
 288     {
 289         gtk_entry_set_text( GTK_ENTRY(m_text), tmp );
 290     }
 291 }
 292
 293 void wxTextCtrl::WriteText( const wxString &text )
 294 {
 295     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 296
 297     if (text.IsNull()) return;
 298
 299     if (m_windowStyle & wxTE_MULTILINE)
 300     {
 301         /* this moves the cursor pos to behind the inserted text */
 302         gint len = GTK_EDITABLE(m_text)->current_pos;
 303         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 304
 305         /* bring editable's cursor uptodate. bug in GTK. */
 306         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 307     }
 308     else
 309     {
 310         /* this moves the cursor pos to behind the inserted text */
 311         gint len = GTK_EDITABLE(m_text)->current_pos;
 312         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 313
 314         /* bring editable's cursor uptodate. bug in GTK. */
 315         GTK_EDITABLE(m_text)->current_pos += text.Len();
 316
 317         /* bring entry's cursor uptodate. bug in GTK. */
 318         gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos );
 319     }
 320 }
 321
 322 void wxTextCtrl::AppendText( const wxString &text )
 323 {
 324     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 325
 326     if (m_windowStyle & wxTE_MULTILINE)
 327     {
 328         /* we'll insert at the last position */
 329         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 330         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 331
 332         /* bring editable's cursor uptodate. bug in GTK. */
 333         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 334     }
 335     else
 336     {
 337         gtk_entry_append_text( GTK_ENTRY(m_text), text );
 338     }
 339 }
 340
 341 bool wxTextCtrl::LoadFile( const wxString &file )
 342 {
 343   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 344
 345   if (!wxFileExists(file)) return FALSE;
 346
 347   Clear();
 348
 349   FILE *fp = (FILE*) NULL;
 350   struct stat statb;
 351
 352   if ((stat ((char*) (const char*) file, &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 353       !(fp = fopen ((char*) (const char*) file, "r")))
 354   {
 355       return FALSE;
 356   }
 357   else
 358   {
 359     gint len = statb.st_size;
 360     char *text;
 361     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 362     {
 363       fclose (fp);
 364       return FALSE;
 365     }
 366     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 367     {
 368     }
 369     fclose (fp);
 370
 371     text[len] = 0;
 372
 373     if (m_windowStyle & wxTE_MULTILINE)
 374     {
 375       gint pos = 0;
 376       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 377     }
 378     else
 379     {
 380       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 381     }
 382
 383     free (text);
 384     m_modified = FALSE;
 385     return TRUE;
 386   }
 387   return FALSE;
 388 }
 389
 390 bool wxTextCtrl::SaveFile( const wxString &file )
 391 {
 392   wxCHECK_MSG( m_text != NULL, FALSE, "invalid text ctrl" );
 393
 394   if (file == "") return FALSE;
 395
 396   FILE *fp;
 397
 398   if (!(fp = fopen ((char*) (const char*) file, "w")))
 399     {
 400       return FALSE;
 401     }
 402   else
 403     {
 404       char *text = (char*) NULL;
 405       gint len = 0;
 406
 407       if (m_windowStyle & wxTE_MULTILINE)
 408       {
 409         len = gtk_text_get_length( GTK_TEXT(m_text) );
 410         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 411       }
 412       else
 413       {
 414         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 415       }
 416
 417       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 418       {
 419           // Did not write whole file
 420       }
 421
 422       // Make sure newline terminates the file
 423       if (text[len - 1] != '\n')
 424           fputc ('\n', fp);
 425
 426       fclose (fp);
 427
 428       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 429
 430       m_modified = FALSE;
 431       return TRUE;
 432     }
 433
 434   return TRUE;
 435 }
 436
 437 wxString wxTextCtrl::GetLineText( long lineNo ) const
 438 {
 439   if (m_windowStyle & wxTE_MULTILINE)
 440   {
 441     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 442     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 443
 444     if (text)
 445     {
 446         wxString buf("");
 447         long i;
 448         int currentLine = 0;
 449         for (i = 0; currentLine != lineNo && text[i]; i++ )
 450           if (text[i] == '\n')
 451             currentLine++;
 452         // Now get the text
 453         int j;
 454         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 455             buf += text[i];
 456
 457         g_free( text );
 458         return buf;
 459     }
 460     else
 461       return wxEmptyString;
 462   }
 463   else
 464   {
 465     if (lineNo == 0) return GetValue();
 466     return wxEmptyString;
 467   }
 468 }
 469
 470 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 471 {
 472   /* If you implement this, don't forget to update the documentation!
 473    * (file docs/latex/wx/text.tex) */
 474     wxFAIL_MSG( "wxTextCtrl::OnDropFiles not implemented" );
 475 }
 476
 477 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 478 {
 479     if ( m_windowStyle & wxTE_MULTILINE )
 480     {
 481         wxString text = GetValue();
 482
 483         // cast to prevent warning. But pos really should've been unsigned.
 484         if( (unsigned long)pos > text.Len()  )
 485             return FALSE;
 486
 487         *x=0;   // First Col
 488         *y=0;   // First Line
 489
 490         const char* stop = text.c_str() + pos;
 491         for ( const char *p = text.c_str(); p < stop; p++ )
 492         {
 493             if (*p == '\n')
 494             {
 495                 (*y)++;
 496                 *x=0;
 497             }
 498             else
 499                 (*x)++;
 500         }
 501     }
 502     else // single line control
 503     {
 504         if ( pos <= GTK_ENTRY(m_text)->text_length )
 505         {
 506             *y = 0;
 507             *x = pos;
 508         }
 509         else
 510         {
 511             // index out of bounds
 512             return FALSE;
 513         }
 514     }
 515
 516     return TRUE;
 517 }
 518
 519 long wxTextCtrl::XYToPosition(long x, long y ) const
 520 {
 521     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 522
 523     long pos=0;
 524     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 525
 526     pos += x;
 527     return pos;
 528 }
 529
 530 int wxTextCtrl::GetLineLength(long lineNo) const
 531 {
 532     wxString str = GetLineText (lineNo);
 533     return (int) str.Length();
 534 }
 535
 536 int wxTextCtrl::GetNumberOfLines() const
 537 {
 538     if (m_windowStyle & wxTE_MULTILINE)
 539     {
 540         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 541         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 542
 543         if (text)
 544         {
 545             int currentLine = 0;
 546             for (int i = 0; i < len; i++ )
 547             {
 548                 if (text[i] == '\n')
 549                     currentLine++;
 550             }
 551             g_free( text );
 552
 553             // currentLine is 0 based, add 1 to get number of lines
 554             return currentLine + 1;
 555         }
 556         else
 557         {
 558             return 0;
 559         }
 560     }
 561     else
 562     {
 563         return 1;
 564     }
 565 }
 566
 567 void wxTextCtrl::SetInsertionPoint( long pos )
 568 {
 569     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 570
 571     if (m_windowStyle & wxTE_MULTILINE)
 572     {
 573         /* seems to be broken in GTK 1.0.X:
 574            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 575
 576         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 577           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 578
 579         /* we fake a set_point by inserting and deleting. as the user
 580            isn't supposed to get to know about thos non-sense, we
 581            disconnect so that no events are sent to the user program. */
 582
 583         gint tmp = (gint)pos;
 584         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 585         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 586
 587         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 588           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 589
 590         /* bring editable's cursor uptodate. another bug in GTK. */
 591
 592         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 593     }
 594     else
 595     {
 596         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 597
 598         /* bring editable's cursor uptodate. bug in GTK. */
 599
 600         GTK_EDITABLE(m_text)->current_pos = pos;
 601     }
 602 }
 603
 604 void wxTextCtrl::SetInsertionPointEnd()
 605 {
 606     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 607
 608     if (m_windowStyle & wxTE_MULTILINE)
 609         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 610     else
 611         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 612 }
 613
 614 void wxTextCtrl::SetEditable( bool editable )
 615 {
 616     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 617
 618     if (m_windowStyle & wxTE_MULTILINE)
 619         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 620     else
 621         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 622 }
 623
 624 void wxTextCtrl::SetSelection( long from, long to )
 625 {
 626     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 627
 628     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 629 }
 630
 631 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 632 {
 633     wxFAIL_MSG( "wxTextCtrl::ShowPosition not implemented" );
 634 }
 635
 636 long wxTextCtrl::GetInsertionPoint() const
 637 {
 638     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 639
 640     return (long) GTK_EDITABLE(m_text)->current_pos;
 641 }
 642
 643 long wxTextCtrl::GetLastPosition() const
 644 {
 645     wxCHECK_MSG( m_text != NULL, 0, "invalid text ctrl" );
 646
 647     int pos = 0;
 648     if (m_windowStyle & wxTE_MULTILINE)
 649         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 650     else
 651         pos = GTK_ENTRY(m_text)->text_length;
 652
 653     return (long)pos;
 654 }
 655
 656 void wxTextCtrl::Remove( long from, long to )
 657 {
 658     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 659
 660     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 661 }
 662
 663 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 664 {
 665     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 666
 667     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 668     if (value.IsNull()) return;
 669     gint pos = (gint)from;
 670     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 671 }
 672
 673 void wxTextCtrl::Cut()
 674 {
 675     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 676
 677 #if (GTK_MINOR_VERSION == 1)
 678     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 679 #else
 680     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 681 #endif
 682 }
 683
 684 void wxTextCtrl::Copy()
 685 {
 686     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 687
 688 #if (GTK_MINOR_VERSION == 1)
 689     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 690 #else
 691     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 692 #endif
 693 }
 694
 695 void wxTextCtrl::Paste()
 696 {
 697     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 698
 699 #if (GTK_MINOR_VERSION == 1)
 700     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 701 #else
 702     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 703 #endif
 704 }
 705
 706 void wxTextCtrl::Clear()
 707 {
 708     SetValue( "" );
 709 }
 710
 711 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 712 {
 713     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 714
 715     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 716     {
 717         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 718         event.SetEventObject(this);
 719         if (GetEventHandler()->ProcessEvent(event)) return;
 720     }
 721
 722     key_event.Skip();
 723 }
 724
 725 #ifndef NO_TEXT_WINDOW_STREAM
 726 int wxTextCtrl::overflow( int WXUNUSED(c) )
 727 {
 728     int len = pptr() - pbase();
 729     char *txt = new char[len+1];
 730     strncpy(txt, pbase(), len);
 731     txt[len] = '\0';
 732     (*this) << txt;
 733     setp(pbase(), epptr());
 734     delete[] txt;
 735     return EOF;
 736 }
 737
 738 int wxTextCtrl::sync()
 739 {
 740     int len = pptr() - pbase();
 741     char *txt = new char[len+1];
 742     strncpy(txt, pbase(), len);
 743     txt[len] = '\0';
 744     (*this) << txt;
 745     setp(pbase(), epptr());
 746     delete[] txt;
 747     return 0;
 748 }
 749
 750 int wxTextCtrl::underflow()
 751 {
 752     return EOF;
 753 }
 754
 755 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 756 {
 757     AppendText(s);
 758     return *this;
 759 }
 760
 761 wxTextCtrl& wxTextCtrl::operator<<(float f)
 762 {
 763     static char buf[100];
 764     sprintf(buf, "%.2f", f);
 765     AppendText(buf);
 766     return *this;
 767 }
 768
 769 wxTextCtrl& wxTextCtrl::operator<<(double d)
 770 {
 771     static char buf[100];
 772     sprintf(buf, "%.2f", d);
 773     AppendText(buf);
 774     return *this;
 775 }
 776
 777 wxTextCtrl& wxTextCtrl::operator<<(int i)
 778 {
 779     static char buf[100];
 780     sprintf(buf, "%i", i);
 781     AppendText(buf);
 782     return *this;
 783 }
 784
 785 wxTextCtrl& wxTextCtrl::operator<<(long i)
 786 {
 787     static char buf[100];
 788     sprintf(buf, "%ld", i);
 789     AppendText(buf);
 790     return *this;
 791 }
 792
 793 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 794 {
 795     char buf[2];
 796
 797     buf[0] = c;
 798     buf[1] = 0;
 799     AppendText(buf);
 800     return *this;
 801 }
 802 #endif
 803
 804 GtkWidget* wxTextCtrl::GetConnectWidget()
 805 {
 806     return GTK_WIDGET(m_text);
 807 }
 808
 809 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 810 {
 811     if (m_windowStyle & wxTE_MULTILINE)
 812         return (window == GTK_TEXT(m_text)->text_area);
 813     else
 814         return (window == GTK_ENTRY(m_text)->text_area);
 815 }
 816
 817 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 818 {
 819     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 820
 821     // doesn't work
 822 }
 823
 824 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 825 {
 826     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 827
 828     // doesn't work
 829 }
 830
 831 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 832 {
 833     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 834
 835     wxControl::SetBackgroundColour( colour );
 836
 837     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 838     if (sysbg.Red() == colour.Red() &&
 839         sysbg.Green() == colour.Green() &&
 840         sysbg.Blue() == colour.Blue())
 841     {
 842         return;
 843     }
 844
 845     if (!m_backgroundColour.Ok()) return;
 846
 847     if (m_windowStyle & wxTE_MULTILINE)
 848     {
 849         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 850         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 851         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 852         gdk_window_clear( window );
 853     }
 854 }
 855
 856 void wxTextCtrl::ApplyWidgetStyle()
 857 {
 858     if (m_windowStyle & wxTE_MULTILINE)
 859     {
 860         // how ?
 861     }
 862     else
 863     {
 864         SetWidgetStyle();
 865         gtk_widget_set_style( m_text, m_widgetStyle );
 866     }
 867 }
 868