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