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     wxSize new_size = size,
 196            sizeBest = DoGetBestSize();
 197     if (new_size.x == -1)
 198         new_size.x = sizeBest.x;
 199     if (new_size.y == -1)
 200         new_size.y = sizeBest.y;
 201
 202     if ((new_size.x != size.x) || (new_size.y != size.y))
 203         SetSize( new_size.x, new_size.y );
 204
 205     m_parent->DoAddChild( this );
 206
 207     PostCreation();
 208
 209     if (multi_line)
 210         gtk_widget_show(m_text);
 211
 212     /* we want to be notified about text changes */
 213     gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 214       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 215
 216     if (multi_line)
 217     {
 218         gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
 219           (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
 220     }
 221
 222     if (!value.IsEmpty())
 223     {
 224         gint tmp = 0;
 225
 226 #if GTK_MINOR_VERSION == 0
 227         // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
 228         // gtk_editable_insert_text()
 229         gtk_widget_realize(m_text);
 230 #endif // GTK 1.0
 231
 232 #if wxUSE_UNICODE
 233         wxWX2MBbuf val = value.mbc_str();
 234         gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
 235 #else // !Unicode
 236         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 237 #endif // Unicode/!Unicode
 238
 239         if (multi_line)
 240         {
 241             /* bring editable's cursor uptodate. bug in GTK. */
 242
 243             GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 244         }
 245     }
 246
 247     if (style & wxTE_PASSWORD)
 248     {
 249         if (!multi_line)
 250             gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
 251     }
 252
 253     if (style & wxTE_READONLY)
 254     {
 255         if (!multi_line)
 256             gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
 257     }
 258     else
 259     {
 260         if (multi_line)
 261             gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 262     }
 263
 264     SetBackgroundColour( wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW) );
 265     SetForegroundColour( parent->GetForegroundColour() );
 266
 267     m_cursor = wxCursor( wxCURSOR_IBEAM );
 268
 269     Show( TRUE );
 270
 271     return TRUE;
 272 }
 273
 274 void wxTextCtrl::CalculateScrollbar()
 275 {
 276     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 277
 278     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 279
 280     if (adj->upper - adj->page_size < 0.8)
 281     {
 282         if (m_vScrollbarVisible)
 283         {
 284             gtk_widget_hide( m_vScrollbar );
 285             m_vScrollbarVisible = FALSE;
 286         }
 287     }
 288     else
 289     {
 290         if (!m_vScrollbarVisible)
 291         {
 292             gtk_widget_show( m_vScrollbar );
 293             m_vScrollbarVisible = TRUE;
 294         }
 295     }
 296 }
 297
 298 wxString wxTextCtrl::GetValue() const
 299 {
 300     wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
 301
 302     wxString tmp;
 303     if (m_windowStyle & wxTE_MULTILINE)
 304     {
 305         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 306         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 307         tmp = wxString(text,*wxConvCurrent);
 308         g_free( text );
 309     }
 310     else
 311     {
 312         tmp = wxString(gtk_entry_get_text( GTK_ENTRY(m_text) ),*wxConvCurrent);
 313     }
 314     return tmp;
 315 }
 316
 317 void wxTextCtrl::SetValue( const wxString &value )
 318 {
 319     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 320
 321     wxString tmp = wxT("");
 322     if (!value.IsNull()) tmp = value;
 323     if (m_windowStyle & wxTE_MULTILINE)
 324     {
 325         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 326         gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 327         len = 0;
 328 #if wxUSE_UNICODE
 329         wxWX2MBbuf tmpbuf = tmp.mbc_str();
 330         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len );
 331 #else
 332         gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp.mbc_str(), tmp.Length(), &len );
 333 #endif
 334     }
 335     else
 336     {
 337         gtk_entry_set_text( GTK_ENTRY(m_text), tmp.mbc_str() );
 338     }
 339 }
 340
 341 void wxTextCtrl::WriteText( const wxString &text )
 342 {
 343     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 344
 345     if (text.IsEmpty()) return;
 346
 347     if (m_windowStyle & wxTE_MULTILINE)
 348     {
 349         /* this moves the cursor pos to behind the inserted text */
 350         gint len = GTK_EDITABLE(m_text)->current_pos;
 351
 352 #if wxUSE_UNICODE
 353         wxWX2MBbuf buf = text.mbc_str();
 354         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 355 #else
 356         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 357 #endif
 358
 359         /* bring editable's cursor uptodate. bug in GTK. */
 360         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 361     }
 362     else
 363     {
 364         /* this moves the cursor pos to behind the inserted text */
 365         gint len = GTK_EDITABLE(m_text)->current_pos;
 366 #if wxUSE_UNICODE
 367         wxWX2MBbuf buf = text.mbc_str();
 368         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 369 #else
 370         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 371 #endif
 372
 373         /* bring editable's cursor uptodate. bug in GTK. */
 374         GTK_EDITABLE(m_text)->current_pos += text.Len();
 375
 376         /* bring entry's cursor uptodate. bug in GTK. */
 377         gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos );
 378     }
 379 }
 380
 381 void wxTextCtrl::AppendText( const wxString &text )
 382 {
 383     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 384
 385     if (text.IsEmpty()) return;
 386
 387     if (m_windowStyle & wxTE_MULTILINE)
 388     {
 389         bool hasSpecialAttributes = m_font.Ok() ||
 390                                     m_foregroundColour.Ok() ||
 391                                     m_backgroundColour.Ok();
 392         if ( hasSpecialAttributes )
 393         {
 394              gtk_text_insert( GTK_TEXT(m_text),
 395                               m_font.GetInternalFont(),
 396                               m_foregroundColour.GetColor(),
 397                               m_backgroundColour.GetColor(),
 398                               text.mbc_str(), text.length());
 399
 400         }
 401         else
 402         {
 403             /* we'll insert at the last position */
 404             gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 405 #if wxUSE_UNICODE
 406             wxWX2MBbuf buf = text.mbc_str();
 407             gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 408 #else
 409             gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 410 #endif
 411         }
 412
 413         /* bring editable's cursor uptodate. bug in GTK. */
 414         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 415     }
 416     else
 417     {
 418         gtk_entry_append_text( GTK_ENTRY(m_text), text.mbc_str() );
 419     }
 420 }
 421
 422 wxString wxTextCtrl::GetLineText( long lineNo ) const
 423 {
 424   if (m_windowStyle & wxTE_MULTILINE)
 425   {
 426     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 427     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 428
 429     if (text)
 430     {
 431         wxString buf(wxT(""));
 432         long i;
 433         int currentLine = 0;
 434         for (i = 0; currentLine != lineNo && text[i]; i++ )
 435           if (text[i] == '\n')
 436             currentLine++;
 437         // Now get the text
 438         int j;
 439         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 440             buf += text[i];
 441
 442         g_free( text );
 443         return buf;
 444     }
 445     else
 446       return wxEmptyString;
 447   }
 448   else
 449   {
 450     if (lineNo == 0) return GetValue();
 451     return wxEmptyString;
 452   }
 453 }
 454
 455 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 456 {
 457   /* If you implement this, don't forget to update the documentation!
 458    * (file docs/latex/wx/text.tex) */
 459     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
 460 }
 461
 462 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 463 {
 464     if ( m_windowStyle & wxTE_MULTILINE )
 465     {
 466         wxString text = GetValue();
 467
 468         // cast to prevent warning. But pos really should've been unsigned.
 469         if( (unsigned long)pos > text.Len()  )
 470             return FALSE;
 471
 472         *x=0;   // First Col
 473         *y=0;   // First Line
 474
 475         const wxChar* stop = text.c_str() + pos;
 476         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 477         {
 478             if (*p == wxT('\n'))
 479             {
 480                 (*y)++;
 481                 *x=0;
 482             }
 483             else
 484                 (*x)++;
 485         }
 486     }
 487     else // single line control
 488     {
 489         if ( pos <= GTK_ENTRY(m_text)->text_length )
 490         {
 491             *y = 0;
 492             *x = pos;
 493         }
 494         else
 495         {
 496             // index out of bounds
 497             return FALSE;
 498         }
 499     }
 500
 501     return TRUE;
 502 }
 503
 504 long wxTextCtrl::XYToPosition(long x, long y ) const
 505 {
 506     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 507
 508     long pos=0;
 509     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 510
 511     pos += x;
 512     return pos;
 513 }
 514
 515 int wxTextCtrl::GetLineLength(long lineNo) const
 516 {
 517     wxString str = GetLineText (lineNo);
 518     return (int) str.Length();
 519 }
 520
 521 int wxTextCtrl::GetNumberOfLines() const
 522 {
 523     if (m_windowStyle & wxTE_MULTILINE)
 524     {
 525         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 526         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 527
 528         if (text)
 529         {
 530             int currentLine = 0;
 531             for (int i = 0; i < len; i++ )
 532             {
 533                 if (text[i] == '\n')
 534                     currentLine++;
 535             }
 536             g_free( text );
 537
 538             // currentLine is 0 based, add 1 to get number of lines
 539             return currentLine + 1;
 540         }
 541         else
 542         {
 543             return 0;
 544         }
 545     }
 546     else
 547     {
 548         return 1;
 549     }
 550 }
 551
 552 void wxTextCtrl::SetInsertionPoint( long pos )
 553 {
 554     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 555
 556     if (m_windowStyle & wxTE_MULTILINE)
 557     {
 558         /* seems to be broken in GTK 1.0.X:
 559            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 560
 561         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 562           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 563
 564         /* we fake a set_point by inserting and deleting. as the user
 565            isn't supposed to get to know about thos non-sense, we
 566            disconnect so that no events are sent to the user program. */
 567
 568         gint tmp = (gint)pos;
 569         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 570         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 571
 572         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 573           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 574
 575         /* bring editable's cursor uptodate. another bug in GTK. */
 576
 577         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 578     }
 579     else
 580     {
 581         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 582
 583         /* bring editable's cursor uptodate. bug in GTK. */
 584
 585         GTK_EDITABLE(m_text)->current_pos = (guint32)pos;
 586     }
 587 }
 588
 589 void wxTextCtrl::SetInsertionPointEnd()
 590 {
 591     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 592
 593     if (m_windowStyle & wxTE_MULTILINE)
 594         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 595     else
 596         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 597 }
 598
 599 void wxTextCtrl::SetEditable( bool editable )
 600 {
 601     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 602
 603     if (m_windowStyle & wxTE_MULTILINE)
 604         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 605     else
 606         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 607 }
 608
 609 void wxTextCtrl::DiscardEdits()
 610 {
 611     m_modified = FALSE;
 612 }
 613
 614 void wxTextCtrl::SetSelection( long from, long to )
 615 {
 616     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 617
 618     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 619 }
 620
 621 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 622 {
 623 //    SetInsertionPoint( pos );
 624 }
 625
 626 long wxTextCtrl::GetInsertionPoint() const
 627 {
 628     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
 629
 630     return (long) GTK_EDITABLE(m_text)->current_pos;
 631 }
 632
 633 long wxTextCtrl::GetLastPosition() const
 634 {
 635     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
 636
 637     int pos = 0;
 638     if (m_windowStyle & wxTE_MULTILINE)
 639         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 640     else
 641         pos = GTK_ENTRY(m_text)->text_length;
 642
 643     return (long)pos;
 644 }
 645
 646 void wxTextCtrl::Remove( long from, long to )
 647 {
 648     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 649
 650     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 651 }
 652
 653 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 654 {
 655     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 656
 657     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 658
 659     if (!value.IsEmpty())
 660     {
 661         gint pos = (gint)from;
 662 #if wxUSE_UNICODE
 663         wxWX2MBbuf buf = value.mbc_str();
 664         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
 665 #else
 666         gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 667 #endif
 668     }
 669 }
 670
 671 void wxTextCtrl::Cut()
 672 {
 673     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 674
 675 #if (GTK_MINOR_VERSION > 0)
 676     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 677 #else
 678     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 679 #endif
 680 }
 681
 682 void wxTextCtrl::Copy()
 683 {
 684     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 685
 686 #if (GTK_MINOR_VERSION > 0)
 687     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 688 #else
 689     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 690 #endif
 691 }
 692
 693 void wxTextCtrl::Paste()
 694 {
 695     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 696
 697 #if (GTK_MINOR_VERSION > 0)
 698     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 699 #else
 700     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 701 #endif
 702 }
 703
 704 bool wxTextCtrl::CanCopy() const
 705 {
 706     // Can copy if there's a selection
 707     long from, to;
 708     GetSelection(& from, & to);
 709     return (from != to) ;
 710 }
 711
 712 bool wxTextCtrl::CanCut() const
 713 {
 714     // Can cut if there's a selection
 715     long from, to;
 716     GetSelection(& from, & to);
 717     return (from != to) ;
 718 }
 719
 720 bool wxTextCtrl::CanPaste() const
 721 {
 722     return IsEditable() ;
 723 }
 724
 725 // Undo/redo
 726 void wxTextCtrl::Undo()
 727 {
 728     // TODO
 729     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
 730 }
 731
 732 void wxTextCtrl::Redo()
 733 {
 734     // TODO
 735     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
 736 }
 737
 738 bool wxTextCtrl::CanUndo() const
 739 {
 740     // TODO
 741     wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
 742     return FALSE;
 743 }
 744
 745 bool wxTextCtrl::CanRedo() const
 746 {
 747     // TODO
 748     wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
 749     return FALSE;
 750 }
 751
 752 // If the return values from and to are the same, there is no
 753 // selection.
 754 void wxTextCtrl::GetSelection(long* from, long* to) const
 755 {
 756     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 757
 758     if (!(GTK_EDITABLE(m_text)->has_selection))
 759     {
 760         if (from) *from = 0;
 761         if (to)   *to = 0;
 762         return;
 763     }
 764
 765     if (from) *from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
 766     if (to)   *to = (long) GTK_EDITABLE(m_text)->selection_end_pos;
 767 }
 768
 769 bool wxTextCtrl::IsEditable() const
 770 {
 771     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 772
 773     return GTK_EDITABLE(m_text)->editable;
 774 }
 775
 776 bool wxTextCtrl::IsModified() const
 777 {
 778     return m_modified;
 779 }
 780
 781 void wxTextCtrl::Clear()
 782 {
 783     SetValue( wxT("") );
 784 }
 785
 786 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 787 {
 788     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
 789
 790     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 791     {
 792         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 793         event.SetEventObject(this);
 794         if (GetEventHandler()->ProcessEvent(event)) return;
 795     }
 796
 797     if ((key_event.KeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
 798     {
 799         wxWindow *top_frame = m_parent;
 800         while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 801             top_frame = top_frame->GetParent();
 802         GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
 803
 804         if (window->default_widget)
 805         {
 806             gtk_widget_activate (window->default_widget);
 807             return;
 808         }
 809     }
 810
 811     key_event.Skip();
 812 }
 813
 814 GtkWidget* wxTextCtrl::GetConnectWidget()
 815 {
 816     return GTK_WIDGET(m_text);
 817 }
 818
 819 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 820 {
 821     if (m_windowStyle & wxTE_MULTILINE)
 822         return (window == GTK_TEXT(m_text)->text_area);
 823     else
 824         return (window == GTK_ENTRY(m_text)->text_area);
 825 }
 826
 827 // the font will change for subsequent text insertiongs
 828 bool wxTextCtrl::SetFont( const wxFont &font )
 829 {
 830     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 831
 832     if ( !wxWindowBase::SetFont(font) )
 833     {
 834         // font didn't change, nothing to do
 835         return FALSE;
 836     }
 837
 838     if ( m_windowStyle & wxTE_MULTILINE )
 839     {
 840         // for compatibility with other ports: the font is a global controls
 841         // characteristic, so change the font globally
 842         wxString value = GetValue();
 843         if ( !value.IsEmpty() )
 844         {
 845             Clear();
 846
 847             AppendText(value);
 848         }
 849     }
 850
 851     return TRUE;
 852 }
 853
 854 bool wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 855 {
 856     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 857
 858     // doesn't work
 859     return FALSE;
 860 }
 861
 862 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 863 {
 864     wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
 865
 866     wxControl::SetBackgroundColour( colour );
 867
 868     if (!m_widget->window)
 869         return FALSE;
 870
 871     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 872     if (sysbg.Red() == colour.Red() &&
 873         sysbg.Green() == colour.Green() &&
 874         sysbg.Blue() == colour.Blue())
 875     {
 876         return FALSE; // FIXME or TRUE?
 877     }
 878
 879     if (!m_backgroundColour.Ok())
 880         return FALSE;
 881
 882     if (m_windowStyle & wxTE_MULTILINE)
 883     {
 884         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 885         if (!window)
 886             return FALSE;
 887         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 888         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 889         gdk_window_clear( window );
 890     }
 891
 892     return TRUE;
 893 }
 894
 895 void wxTextCtrl::ApplyWidgetStyle()
 896 {
 897     if (m_windowStyle & wxTE_MULTILINE)
 898     {
 899         // how ?
 900     }
 901     else
 902     {
 903         SetWidgetStyle();
 904         gtk_widget_set_style( m_text, m_widgetStyle );
 905     }
 906 }
 907
 908 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
 909 {
 910     Cut();
 911 }
 912
 913 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
 914 {
 915     Copy();
 916 }
 917
 918 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
 919 {
 920     Paste();
 921 }
 922
 923 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
 924 {
 925     Undo();
 926 }
 927
 928 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
 929 {
 930     Redo();
 931 }
 932
 933 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
 934 {
 935     event.Enable( CanCut() );
 936 }
 937
 938 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
 939 {
 940     event.Enable( CanCopy() );
 941 }
 942
 943 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
 944 {
 945     event.Enable( CanPaste() );
 946 }
 947
 948 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
 949 {
 950     event.Enable( CanUndo() );
 951 }
 952
 953 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
 954 {
 955     event.Enable( CanRedo() );
 956 }
 957
 958 void wxTextCtrl::OnInternalIdle()
 959 {
 960     wxCursor cursor = m_cursor;
 961     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 962
 963     if (cursor.Ok())
 964     {
 965         GdkWindow *window = (GdkWindow*) NULL;
 966         if (HasFlag(wxTE_MULTILINE))
 967             window = GTK_TEXT(m_text)->text_area;
 968         else
 969             window = GTK_ENTRY(m_text)->text_area;
 970
 971         if (window)
 972             gdk_window_set_cursor( window, cursor.GetCursor() );
 973
 974         if (!g_globalCursor.Ok())
 975             cursor = *wxSTANDARD_CURSOR;
 976
 977         window = m_widget->window;
 978         if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
 979             gdk_window_set_cursor( window, cursor.GetCursor() );
 980     }
 981
 982     UpdateWindowUI();
 983 }
 984
 985 wxSize wxTextCtrl::DoGetBestSize() const
 986 {
 987     // FIXME should be different for multi-line controls...
 988     wxSize ret( wxControl::DoGetBestSize() );
 989     return wxSize(80, ret.y);
 990 }