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 #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( win->GetValue() );
  46     event.SetEventObject( win );
  47     win->GetEventHandler()->ProcessEvent( event );
  48 }
  49
  50 //-----------------------------------------------------------------------------
  51 // "size_allocate"
  52 //-----------------------------------------------------------------------------
  53
  54 static void
  55 gtk_text_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* WXUNUSED(alloc), wxTextCtrl *win )
  56 {
  57     win->CalculateScrollbar();
  58 }
  59
  60 //-----------------------------------------------------------------------------
  61 //  wxTextCtrl
  62 //-----------------------------------------------------------------------------
  63
  64 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  65
  66 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  67     EVT_CHAR(wxTextCtrl::OnChar)
  68 END_EVENT_TABLE()
  69
  70 #ifndef NO_TEXT_WINDOW_STREAM
  71 wxTextCtrl::wxTextCtrl() : streambuf()
  72 {
  73     if (allocate()) setp(base(),ebuf());
  74
  75     m_modified = FALSE;
  76 }
  77 #else
  78 wxTextCtrl::wxTextCtrl()
  79 {
  80     m_modified = FALSE;
  81 }
  82 #endif
  83
  84 #ifndef NO_TEXT_WINDOW_STREAM
  85 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  86       const wxPoint &pos, const wxSize &size,
  87       int style, const wxValidator& validator, const wxString &name ) : streambuf()
  88 {
  89     if (allocate()) setp(base(),ebuf());
  90
  91     m_modified = FALSE;
  92     Create( parent, id, value, pos, size, style, validator, name );
  93 }
  94 #else
  95 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  96       const wxPoint &pos, const wxSize &size,
  97       int style, const wxValidator& validator, const wxString &name )
  98 {
  99     m_modified = FALSE;
 100     Create( parent, id, value, pos, size, style, validator, name );
 101 }
 102 #endif
 103
 104 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
 105       const wxPoint &pos, const wxSize &size,
 106       int style, const wxValidator& validator, const wxString &name )
 107 {
 108     m_needParent = TRUE;
 109     m_acceptsFocus = TRUE;
 110
 111     PreCreation( parent, id, pos, size, style, name );
 112
 113     SetValidator( validator );
 114
 115     m_vScrollbarVisible = TRUE;
 116
 117     bool multi_line = (style & wxTE_MULTILINE) != 0;
 118     if ( multi_line )
 119     {
 120         // a multi-line edit control: create a vertical scrollbar by default and
 121         // horizontal if requested
 122         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 123
 124         // create our control...
 125         m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
 126
 127         // ... and put into the upper left hand corner of the table
 128         m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
 129         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 130
 131         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 132                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 133                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 134                        0, 0);
 135
 136         // put the horizontal scrollbar in the lower left hand corner
 137         if (bHasHScrollbar)
 138         {
 139             GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
 140             GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS );
 141
 142             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 143                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
 144                        GTK_FILL,
 145                        0, 0);
 146             gtk_widget_show(hscrollbar);
 147         }
 148
 149         // finally, put the vertical scrollbar in the upper right corner
 150         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 151         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 152
 153         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 154                      GTK_FILL,
 155                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 156                      0, 0);
 157         gtk_widget_show( m_vScrollbar );
 158
 159         gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 160           GTK_SIGNAL_FUNC(gtk_text_size_callback), (gpointer)this );
 161     }
 162     else
 163     {
 164         // a single-line text control: no need for scrollbars
 165         m_widget =
 166           m_text = gtk_entry_new();
 167     }
 168
 169     wxSize newSize = size;
 170     if (newSize.x == -1) newSize.x = 80;
 171     if (newSize.y == -1) newSize.y = 26;
 172     SetSize( newSize.x, newSize.y );
 173
 174     m_parent->AddChild( this );
 175
 176     (m_parent->m_insertCallback)( m_parent, this );
 177
 178     PostCreation();
 179
 180     if (multi_line)
 181     {
 182         gtk_widget_realize(m_text);
 183         gtk_widget_show(m_text);
 184     }
 185
 186     // we want to be notified about text changes
 187     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 188       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 189
 190     if (!value.IsEmpty())
 191     {
 192         gint tmp = 0;
 193         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 194
 195         if (multi_line)
 196         {
 197             /* bring editable's cursor uptodate. bug in GTK. */
 198
 199             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 200         }
 201     }
 202
 203     if (style & wxTE_PASSWORD)
 204     {
 205         if (!multi_line)
 206             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 207     }
 208
 209     if (style & wxTE_READONLY)
 210     {
 211         if (!multi_line)
 212             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 213     }
 214     else
 215     {
 216         if (multi_line)
 217             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 218     }
 219
 220     Show( TRUE );
 221
 222     SetBackgroundColour( parent->GetBackgroundColour() );
 223     SetForegroundColour( parent->GetForegroundColour() );
 224
 225     return TRUE;
 226 }
 227
 228 void wxTextCtrl::CalculateScrollbar()
 229 {
 230     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 231
 232     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 233
 234     if (adj->upper - adj->page_size < 0.8)
 235     {
 236         if (m_vScrollbarVisible)
 237         {
 238         gtk_widget_hide( m_vScrollbar );
 239
 240         m_vScrollbarVisible = FALSE;
 241         }
 242     }
 243     else
 244     {
 245         if (!m_vScrollbarVisible)
 246         {
 247         gtk_widget_show( m_vScrollbar );
 248
 249         m_vScrollbarVisible = TRUE;
 250         }
 251     }
 252 }
 253
 254 wxString wxTextCtrl::GetValue() const
 255 {
 256     wxCHECK_MSG( m_text != NULL, "", "invalid text ctrl" );
 257
 258     wxString tmp;
 259     if (m_windowStyle & wxTE_MULTILINE)
 260     {
 261         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 262         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 263         tmp = text;
 264         g_free( text );
 265     }
 266     else
 267     {
 268         tmp = gtk_entry_get_text( GTK_ENTRY(m_text) );
 269     }
 270     return tmp;
 271 }
 272
 273 void wxTextCtrl::SetValue( const wxString &value )
 274 {
 275     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 276
 277     wxString tmp = "";
 278     if (!value.IsNull()) tmp = value;
 279     if (m_windowStyle & wxTE_MULTILINE)
 280     {
 281         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 282         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 283         len = 0;
 284         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp, tmp.Length(), &len );
 285     }
 286     else
 287     {
 288         gtk_entry_set_text( GTK_ENTRY(m_text), tmp );
 289     }
 290 }
 291
 292 void wxTextCtrl::WriteText( const wxString &text )
 293 {
 294     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 295
 296     if (text.IsNull()) return;
 297
 298     if (m_windowStyle & wxTE_MULTILINE)
 299     {
 300         /* this moves the cursor pos to behind the inserted text */
 301         gint len = GTK_EDITABLE(m_text)->current_pos;
 302
 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 > 0)
 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 > 0)
 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 > 0)
 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 bool wxTextCtrl::CanCopy() const
 707 {
 708     // Can copy if there's a selection
 709     long from, to;
 710     GetSelection(& from, & to);
 711     return (from != to) ;
 712 }
 713
 714 bool wxTextCtrl::CanCut() const
 715 {
 716     // Can cut if there's a selection
 717     long from, to;
 718     GetSelection(& from, & to);
 719     return (from != to) ;
 720 }
 721
 722 bool wxTextCtrl::CanPaste() const
 723 {
 724     return IsEditable() ;
 725 }
 726
 727 // Undo/redo
 728 void wxTextCtrl::Undo()
 729 {
 730     // TODO
 731     wxFAIL_MSG( "wxTextCtrl::Undo not implemented" );
 732 }
 733
 734 void wxTextCtrl::Redo()
 735 {
 736     // TODO
 737     wxFAIL_MSG( "wxTextCtrl::Redo not implemented" );
 738 }
 739
 740 bool wxTextCtrl::CanUndo() const
 741 {
 742     // TODO
 743     wxFAIL_MSG( "wxTextCtrl::CanUndo not implemented" );
 744     return FALSE;
 745 }
 746
 747 bool wxTextCtrl::CanRedo() const
 748 {
 749     // TODO
 750     wxFAIL_MSG( "wxTextCtrl::CanRedo not implemented" );
 751     return FALSE;
 752 }
 753
 754 // If the return values from and to are the same, there is no
 755 // selection.
 756 void wxTextCtrl::GetSelection(long* from, long* to) const
 757 {
 758     // TODO
 759     *from = 0;
 760     *to = 0;
 761     wxFAIL_MSG( "wxTextCtrl::GetSelection not implemented" );
 762 }
 763
 764 bool wxTextCtrl::IsEditable() const
 765 {
 766     // TODO
 767     wxFAIL_MSG( "wxTextCtrl::IsEditable not implemented" );
 768     return FALSE;
 769 }
 770
 771 void wxTextCtrl::Clear()
 772 {
 773     SetValue( "" );
 774 }
 775
 776 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 777 {
 778     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 779
 780     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 781     {
 782         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 783         event.SetEventObject(this);
 784         if (GetEventHandler()->ProcessEvent(event)) return;
 785     }
 786
 787     key_event.Skip();
 788 }
 789
 790 #ifndef NO_TEXT_WINDOW_STREAM
 791 int wxTextCtrl::overflow( int WXUNUSED(c) )
 792 {
 793     int len = pptr() - pbase();
 794     char *txt = new char[len+1];
 795     strncpy(txt, pbase(), len);
 796     txt[len] = '\0';
 797     (*this) << txt;
 798     setp(pbase(), epptr());
 799     delete[] txt;
 800     return EOF;
 801 }
 802
 803 int wxTextCtrl::sync()
 804 {
 805     int len = pptr() - pbase();
 806     char *txt = new char[len+1];
 807     strncpy(txt, pbase(), len);
 808     txt[len] = '\0';
 809     (*this) << txt;
 810     setp(pbase(), epptr());
 811     delete[] txt;
 812     return 0;
 813 }
 814
 815 int wxTextCtrl::underflow()
 816 {
 817     return EOF;
 818 }
 819
 820 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 821 {
 822     AppendText(s);
 823     return *this;
 824 }
 825
 826 wxTextCtrl& wxTextCtrl::operator<<(float f)
 827 {
 828     static char buf[100];
 829     sprintf(buf, "%.2f", f);
 830     AppendText(buf);
 831     return *this;
 832 }
 833
 834 wxTextCtrl& wxTextCtrl::operator<<(double d)
 835 {
 836     static char buf[100];
 837     sprintf(buf, "%.2f", d);
 838     AppendText(buf);
 839     return *this;
 840 }
 841
 842 wxTextCtrl& wxTextCtrl::operator<<(int i)
 843 {
 844     static char buf[100];
 845     sprintf(buf, "%i", i);
 846     AppendText(buf);
 847     return *this;
 848 }
 849
 850 wxTextCtrl& wxTextCtrl::operator<<(long i)
 851 {
 852     static char buf[100];
 853     sprintf(buf, "%ld", i);
 854     AppendText(buf);
 855     return *this;
 856 }
 857
 858 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 859 {
 860     char buf[2];
 861
 862     buf[0] = c;
 863     buf[1] = 0;
 864     AppendText(buf);
 865     return *this;
 866 }
 867 #endif
 868
 869 GtkWidget* wxTextCtrl::GetConnectWidget()
 870 {
 871     return GTK_WIDGET(m_text);
 872 }
 873
 874 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 875 {
 876     if (m_windowStyle & wxTE_MULTILINE)
 877         return (window == GTK_TEXT(m_text)->text_area);
 878     else
 879         return (window == GTK_ENTRY(m_text)->text_area);
 880 }
 881
 882 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 883 {
 884     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 885
 886     // doesn't work
 887 }
 888
 889 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 890 {
 891     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 892
 893     // doesn't work
 894 }
 895
 896 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 897 {
 898     wxCHECK_RET( m_text != NULL, "invalid text ctrl" );
 899
 900     wxControl::SetBackgroundColour( colour );
 901
 902     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 903     if (sysbg.Red() == colour.Red() &&
 904         sysbg.Green() == colour.Green() &&
 905         sysbg.Blue() == colour.Blue())
 906     {
 907         return;
 908     }
 909
 910     if (!m_backgroundColour.Ok()) return;
 911
 912     if (m_windowStyle & wxTE_MULTILINE)
 913     {
 914         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 915         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 916         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 917         gdk_window_clear( window );
 918     }
 919 }
 920
 921 void wxTextCtrl::ApplyWidgetStyle()
 922 {
 923     if (m_windowStyle & wxTE_MULTILINE)
 924     {
 925         // how ?
 926     }
 927     else
 928     {
 929         SetWidgetStyle();
 930         gtk_widget_set_style( m_text, m_widgetStyle );
 931     }
 932 }
 933