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
  40 //-----------------------------------------------------------------------------
  41 //  "changed"
  42 //-----------------------------------------------------------------------------
  43
  44 static void
  45 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  46 {
  47     if (g_isIdle) wxapp_install_idle_handler();
  48
  49     if (!win->m_hasVMT) return;
  50
  51     win->SetModified();
  52
  53     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->m_windowId );
  54     event.SetString( win->GetValue() );
  55     event.SetEventObject( win );
  56     win->GetEventHandler()->ProcessEvent( event );
  57 }
  58
  59 //-----------------------------------------------------------------------------
  60 // "changed" from vertical scrollbar
  61 //-----------------------------------------------------------------------------
  62
  63 static void
  64 gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  65 {
  66     if (g_isIdle) wxapp_install_idle_handler();
  67
  68     win->CalculateScrollbar();
  69
  70     if (!win->m_hasVMT) return;
  71 }
  72
  73 //-----------------------------------------------------------------------------
  74 //  wxTextCtrl
  75 //-----------------------------------------------------------------------------
  76
  77 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  78
  79 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  80     EVT_CHAR(wxTextCtrl::OnChar)
  81
  82     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
  83     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
  84     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
  85     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
  86     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
  87
  88     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
  89     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
  90     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
  91     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
  92     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
  93 END_EVENT_TABLE()
  94
  95 #ifndef NO_TEXT_WINDOW_STREAM
  96 wxTextCtrl::wxTextCtrl() : streambuf()
  97 {
  98     if (allocate()) setp(base(),ebuf());
  99
 100     m_modified = FALSE;
 101 }
 102 #else
 103 wxTextCtrl::wxTextCtrl()
 104 {
 105     m_modified = FALSE;
 106 }
 107 #endif
 108
 109 #ifndef NO_TEXT_WINDOW_STREAM
 110 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
 111       const wxPoint &pos, const wxSize &size,
 112       int style, const wxValidator& validator, const wxString &name ) : streambuf()
 113 {
 114     if (allocate()) setp(base(),ebuf());
 115
 116     m_modified = FALSE;
 117     Create( parent, id, value, pos, size, style, validator, name );
 118 }
 119 #else
 120 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
 121       const wxPoint &pos, const wxSize &size,
 122       int style, const wxValidator& validator, const wxString &name )
 123 {
 124     m_modified = FALSE;
 125     Create( parent, id, value, pos, size, style, validator, name );
 126 }
 127 #endif
 128
 129 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
 130       const wxPoint &pos, const wxSize &size,
 131       int style, const wxValidator& validator, const wxString &name )
 132 {
 133     m_needParent = TRUE;
 134     m_acceptsFocus = TRUE;
 135
 136     PreCreation( parent, id, pos, size, style, name );
 137
 138     SetValidator( validator );
 139
 140     m_vScrollbarVisible = FALSE;
 141
 142     bool multi_line = (style & wxTE_MULTILINE) != 0;
 143     if (multi_line)
 144     {
 145         /* a multi-line edit control: create a vertical scrollbar by default and
 146            horizontal if requested */
 147         bool bHasHScrollbar = (style & wxHSCROLL) != 0;
 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
 156         gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
 157                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 158                       (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
 159                        0, 0);
 160
 161         /* always wrap words */
 162         gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
 163
 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
 170             gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
 171                        (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),
 172                        GTK_FILL,
 173                        0, 0);
 174             gtk_widget_show(hscrollbar);
 175
 176 #if (GTK_MINOR_VERSION > 0)
 177             /* don't wrap lines, otherwise we wouldn't need the scrollbar */
 178             gtk_text_set_line_wrap( GTK_TEXT(m_text), FALSE );
 179 #endif
 180         }
 181
 182         /* finally, put the vertical scrollbar in the upper right corner */
 183         m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
 184         GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
 185
 186         gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,
 187                      GTK_FILL,
 188                      (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),
 189                      0, 0);
 190     }
 191     else
 192     {
 193         /* a single-line text control: no need for scrollbars */
 194         m_widget =
 195           m_text = gtk_entry_new();
 196     }
 197
 198     wxSize newSize = size;
 199     if (newSize.x == -1) newSize.x = 80;
 200     if (newSize.y == -1) newSize.y = 26;
 201     SetSize( newSize.x, newSize.y );
 202
 203     m_parent->AddChild( this );
 204
 205     (m_parent->m_insertCallback)( m_parent, 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( parent->GetBackgroundColour() );
 265     SetForegroundColour( parent->GetForegroundColour() );
 266
 267     Show( TRUE );
 268
 269     return TRUE;
 270 }
 271
 272 void wxTextCtrl::CalculateScrollbar()
 273 {
 274     if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
 275
 276     GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
 277
 278     if (adj->upper - adj->page_size < 0.8)
 279     {
 280         if (m_vScrollbarVisible)
 281         {
 282             gtk_widget_hide( m_vScrollbar );
 283
 284             m_vScrollbarVisible = FALSE;
 285         }
 286     }
 287     else
 288     {
 289         if (!m_vScrollbarVisible)
 290         {
 291             gtk_widget_show( m_vScrollbar );
 292
 293             m_vScrollbarVisible = TRUE;
 294         }
 295     }
 296 }
 297
 298 wxString wxTextCtrl::GetValue() const
 299 {
 300     wxCHECK_MSG( m_text != NULL, _T(""), _T("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,*wxConv_current);
 308         g_free( text );
 309     }
 310     else
 311     {
 312         tmp = wxString(gtk_entry_get_text( GTK_ENTRY(m_text) ),*wxConv_current);
 313     }
 314     return tmp;
 315 }
 316
 317 void wxTextCtrl::SetValue( const wxString &value )
 318 {
 319     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 320
 321     wxString tmp = _T("");
 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, _T("invalid text ctrl") );
 344
 345     if (text.IsNull()) 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, _T("invalid text ctrl") );
 384
 385     if (m_windowStyle & wxTE_MULTILINE)
 386     {
 387         /* we'll insert at the last position */
 388         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 389 #if wxUSE_UNICODE
 390         wxWX2MBbuf buf = text.mbc_str();
 391         gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
 392 #else
 393         gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 394 #endif
 395
 396         /* bring editable's cursor uptodate. bug in GTK. */
 397         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 398     }
 399     else
 400     {
 401         gtk_entry_append_text( GTK_ENTRY(m_text), text.mbc_str() );
 402     }
 403 }
 404
 405 bool wxTextCtrl::LoadFile( const wxString &file )
 406 {
 407   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 408
 409   if (!wxFileExists(file)) return FALSE;
 410
 411   Clear();
 412
 413   FILE *fp = (FILE*) NULL;
 414   struct stat statb;
 415
 416   if ((stat (FNSTRINGCAST file.fn_str(), &statb) == -1) || (statb.st_mode & S_IFMT) != S_IFREG ||
 417       !(fp = fopen (FNSTRINGCAST file.fn_str(), "r")))
 418   {
 419       return FALSE;
 420   }
 421   else
 422   {
 423     gint len = statb.st_size;
 424     char *text;
 425     if (!(text = (char*)malloc ((unsigned) (len + 1))))
 426     {
 427       fclose (fp);
 428       return FALSE;
 429     }
 430     if (fread (text, sizeof (char), len, fp) != (size_t) len)
 431     {
 432     }
 433     fclose (fp);
 434
 435     text[len] = 0;
 436
 437     if (m_windowStyle & wxTE_MULTILINE)
 438     {
 439       gint pos = 0;
 440       gtk_editable_insert_text( GTK_EDITABLE(m_text), text, len, &pos );
 441     }
 442     else
 443     {
 444       gtk_entry_set_text( GTK_ENTRY(m_text), text );
 445     }
 446
 447     free (text);
 448     m_modified = FALSE;
 449     return TRUE;
 450   }
 451   return FALSE;
 452 }
 453
 454 bool wxTextCtrl::SaveFile( const wxString &file )
 455 {
 456   wxCHECK_MSG( m_text != NULL, FALSE, _T("invalid text ctrl") );
 457
 458   if (file == _T("")) return FALSE;
 459
 460   FILE *fp;
 461
 462   if (!(fp = fopen (FNSTRINGCAST file.fn_str(), "w")))
 463     {
 464       return FALSE;
 465     }
 466   else
 467     {
 468       char *text = (char*) NULL;
 469       gint len = 0;
 470
 471       if (m_windowStyle & wxTE_MULTILINE)
 472       {
 473         len = gtk_text_get_length( GTK_TEXT(m_text) );
 474         text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 475       }
 476       else
 477       {
 478         text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 479       }
 480
 481       if (fwrite (text, sizeof (char), len, fp) != (size_t) len)
 482       {
 483           // Did not write whole file
 484       }
 485
 486       // Make sure newline terminates the file
 487       if (text[len - 1] != '\n')
 488           fputc ('\n', fp);
 489
 490       fclose (fp);
 491
 492       if (m_windowStyle & wxTE_MULTILINE) g_free( text );
 493
 494       m_modified = FALSE;
 495       return TRUE;
 496     }
 497
 498   return TRUE;
 499 }
 500
 501 wxString wxTextCtrl::GetLineText( long lineNo ) const
 502 {
 503   if (m_windowStyle & wxTE_MULTILINE)
 504   {
 505     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 506     char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 507
 508     if (text)
 509     {
 510         wxString buf(_T(""));
 511         long i;
 512         int currentLine = 0;
 513         for (i = 0; currentLine != lineNo && text[i]; i++ )
 514           if (text[i] == '\n')
 515             currentLine++;
 516         // Now get the text
 517         int j;
 518         for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
 519             buf += text[i];
 520
 521         g_free( text );
 522         return buf;
 523     }
 524     else
 525       return wxEmptyString;
 526   }
 527   else
 528   {
 529     if (lineNo == 0) return GetValue();
 530     return wxEmptyString;
 531   }
 532 }
 533
 534 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
 535 {
 536   /* If you implement this, don't forget to update the documentation!
 537    * (file docs/latex/wx/text.tex) */
 538     wxFAIL_MSG( _T("wxTextCtrl::OnDropFiles not implemented") );
 539 }
 540
 541 long wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
 542 {
 543     if ( m_windowStyle & wxTE_MULTILINE )
 544     {
 545         wxString text = GetValue();
 546
 547         // cast to prevent warning. But pos really should've been unsigned.
 548         if( (unsigned long)pos > text.Len()  )
 549             return FALSE;
 550
 551         *x=0;   // First Col
 552         *y=0;   // First Line
 553
 554         const wxChar* stop = text.c_str() + pos;
 555         for ( const wxChar *p = text.c_str(); p < stop; p++ )
 556         {
 557             if (*p == _T('\n'))
 558             {
 559                 (*y)++;
 560                 *x=0;
 561             }
 562             else
 563                 (*x)++;
 564         }
 565     }
 566     else // single line control
 567     {
 568         if ( pos <= GTK_ENTRY(m_text)->text_length )
 569         {
 570             *y = 0;
 571             *x = pos;
 572         }
 573         else
 574         {
 575             // index out of bounds
 576             return FALSE;
 577         }
 578     }
 579
 580     return TRUE;
 581 }
 582
 583 long wxTextCtrl::XYToPosition(long x, long y ) const
 584 {
 585     if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
 586
 587     long pos=0;
 588     for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
 589
 590     pos += x;
 591     return pos;
 592 }
 593
 594 int wxTextCtrl::GetLineLength(long lineNo) const
 595 {
 596     wxString str = GetLineText (lineNo);
 597     return (int) str.Length();
 598 }
 599
 600 int wxTextCtrl::GetNumberOfLines() const
 601 {
 602     if (m_windowStyle & wxTE_MULTILINE)
 603     {
 604         gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 605         char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 606
 607         if (text)
 608         {
 609             int currentLine = 0;
 610             for (int i = 0; i < len; i++ )
 611             {
 612                 if (text[i] == '\n')
 613                     currentLine++;
 614             }
 615             g_free( text );
 616
 617             // currentLine is 0 based, add 1 to get number of lines
 618             return currentLine + 1;
 619         }
 620         else
 621         {
 622             return 0;
 623         }
 624     }
 625     else
 626     {
 627         return 1;
 628     }
 629 }
 630
 631 void wxTextCtrl::SetInsertionPoint( long pos )
 632 {
 633     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 634
 635     if (m_windowStyle & wxTE_MULTILINE)
 636     {
 637         /* seems to be broken in GTK 1.0.X:
 638            gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
 639
 640         gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
 641           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 642
 643         /* we fake a set_point by inserting and deleting. as the user
 644            isn't supposed to get to know about thos non-sense, we
 645            disconnect so that no events are sent to the user program. */
 646
 647         gint tmp = (gint)pos;
 648         gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
 649         gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
 650
 651         gtk_signal_connect( GTK_OBJECT(m_text), "changed",
 652           GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 653
 654         /* bring editable's cursor uptodate. another bug in GTK. */
 655
 656         GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
 657     }
 658     else
 659     {
 660         gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
 661
 662         /* bring editable's cursor uptodate. bug in GTK. */
 663
 664         GTK_EDITABLE(m_text)->current_pos = pos;
 665     }
 666 }
 667
 668 void wxTextCtrl::SetInsertionPointEnd()
 669 {
 670     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 671
 672     if (m_windowStyle & wxTE_MULTILINE)
 673         SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
 674     else
 675         gtk_entry_set_position( GTK_ENTRY(m_text), -1 );
 676 }
 677
 678 void wxTextCtrl::SetEditable( bool editable )
 679 {
 680     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 681
 682     if (m_windowStyle & wxTE_MULTILINE)
 683         gtk_text_set_editable( GTK_TEXT(m_text), editable );
 684     else
 685         gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 686 }
 687
 688 void wxTextCtrl::SetSelection( long from, long to )
 689 {
 690     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 691
 692     gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 693 }
 694
 695 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 696 {
 697     wxFAIL_MSG( _T("wxTextCtrl::ShowPosition not implemented") );
 698 }
 699
 700 long wxTextCtrl::GetInsertionPoint() const
 701 {
 702     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 703
 704     return (long) GTK_EDITABLE(m_text)->current_pos;
 705 }
 706
 707 long wxTextCtrl::GetLastPosition() const
 708 {
 709     wxCHECK_MSG( m_text != NULL, 0, _T("invalid text ctrl") );
 710
 711     int pos = 0;
 712     if (m_windowStyle & wxTE_MULTILINE)
 713         pos = gtk_text_get_length( GTK_TEXT(m_text) );
 714     else
 715         pos = GTK_ENTRY(m_text)->text_length;
 716
 717     return (long)pos;
 718 }
 719
 720 void wxTextCtrl::Remove( long from, long to )
 721 {
 722     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 723
 724     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 725 }
 726
 727 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 728 {
 729     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 730
 731     gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 732     if (value.IsNull()) return;
 733     gint pos = (gint)from;
 734 #if wxUSE_UNICODE
 735     wxWX2MBbuf buf = value.mbc_str();
 736     gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
 737 #else
 738     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 739 #endif
 740 }
 741
 742 void wxTextCtrl::Cut()
 743 {
 744     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 745
 746 #if (GTK_MINOR_VERSION > 0)
 747     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
 748 #else
 749     gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 750 #endif
 751 }
 752
 753 void wxTextCtrl::Copy()
 754 {
 755     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 756
 757 #if (GTK_MINOR_VERSION > 0)
 758     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
 759 #else
 760     gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 761 #endif
 762 }
 763
 764 void wxTextCtrl::Paste()
 765 {
 766     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 767
 768 #if (GTK_MINOR_VERSION > 0)
 769     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
 770 #else
 771     gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 772 #endif
 773 }
 774
 775 bool wxTextCtrl::CanCopy() const
 776 {
 777     // Can copy if there's a selection
 778     long from, to;
 779     GetSelection(& from, & to);
 780     return (from != to) ;
 781 }
 782
 783 bool wxTextCtrl::CanCut() const
 784 {
 785     // Can cut if there's a selection
 786     long from, to;
 787     GetSelection(& from, & to);
 788     return (from != to) ;
 789 }
 790
 791 bool wxTextCtrl::CanPaste() const
 792 {
 793     return IsEditable() ;
 794 }
 795
 796 // Undo/redo
 797 void wxTextCtrl::Undo()
 798 {
 799     // TODO
 800     wxFAIL_MSG( _T("wxTextCtrl::Undo not implemented") );
 801 }
 802
 803 void wxTextCtrl::Redo()
 804 {
 805     // TODO
 806     wxFAIL_MSG( _T("wxTextCtrl::Redo not implemented") );
 807 }
 808
 809 bool wxTextCtrl::CanUndo() const
 810 {
 811     // TODO
 812     wxFAIL_MSG( _T("wxTextCtrl::CanUndo not implemented") );
 813     return FALSE;
 814 }
 815
 816 bool wxTextCtrl::CanRedo() const
 817 {
 818     // TODO
 819     wxFAIL_MSG( _T("wxTextCtrl::CanRedo not implemented") );
 820     return FALSE;
 821 }
 822
 823 // If the return values from and to are the same, there is no
 824 // selection.
 825 void wxTextCtrl::GetSelection(long* from, long* to) const
 826 {
 827     // TODO
 828     *from = 0;
 829     *to = 0;
 830     wxFAIL_MSG( _T("wxTextCtrl::GetSelection not implemented") );
 831 }
 832
 833 bool wxTextCtrl::IsEditable() const
 834 {
 835     // TODO
 836     wxFAIL_MSG( _T("wxTextCtrl::IsEditable not implemented") );
 837     return FALSE;
 838 }
 839
 840 void wxTextCtrl::Clear()
 841 {
 842     SetValue( _T("") );
 843 }
 844
 845 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
 846 {
 847     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 848
 849     if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
 850     {
 851         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 852         event.SetEventObject(this);
 853         if (GetEventHandler()->ProcessEvent(event)) return;
 854     }
 855
 856     key_event.Skip();
 857 }
 858
 859 #ifndef NO_TEXT_WINDOW_STREAM
 860 int wxTextCtrl::overflow( int WXUNUSED(c) )
 861 {
 862     int len = pptr() - pbase();
 863     char *txt = new char[len+1];
 864     strncpy(txt, pbase(), len);
 865     txt[len] = '\0';
 866     (*this) << txt;
 867     setp(pbase(), epptr());
 868     delete[] txt;
 869     return EOF;
 870 }
 871
 872 int wxTextCtrl::sync()
 873 {
 874     int len = pptr() - pbase();
 875     char *txt = new char[len+1];
 876     strncpy(txt, pbase(), len);
 877     txt[len] = '\0';
 878     (*this) << txt;
 879     setp(pbase(), epptr());
 880     delete[] txt;
 881     return 0;
 882 }
 883
 884 int wxTextCtrl::underflow()
 885 {
 886     return EOF;
 887 }
 888
 889 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 890 {
 891     AppendText(s);
 892     return *this;
 893 }
 894
 895 wxTextCtrl& wxTextCtrl::operator<<(float f)
 896 {
 897     static char buf[100];
 898     sprintf(buf, "%.2f", f);
 899     AppendText(buf);
 900     return *this;
 901 }
 902
 903 wxTextCtrl& wxTextCtrl::operator<<(double d)
 904 {
 905     static char buf[100];
 906     sprintf(buf, "%.2f", d);
 907     AppendText(buf);
 908     return *this;
 909 }
 910
 911 wxTextCtrl& wxTextCtrl::operator<<(int i)
 912 {
 913     static char buf[100];
 914     sprintf(buf, "%i", i);
 915     AppendText(buf);
 916     return *this;
 917 }
 918
 919 wxTextCtrl& wxTextCtrl::operator<<(long i)
 920 {
 921     static char buf[100];
 922     sprintf(buf, "%ld", i);
 923     AppendText(buf);
 924     return *this;
 925 }
 926
 927 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 928 {
 929     char buf[2];
 930
 931     buf[0] = c;
 932     buf[1] = 0;
 933     AppendText(buf);
 934     return *this;
 935 }
 936 #endif
 937
 938 GtkWidget* wxTextCtrl::GetConnectWidget()
 939 {
 940     return GTK_WIDGET(m_text);
 941 }
 942
 943 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 944 {
 945     if (m_windowStyle & wxTE_MULTILINE)
 946         return (window == GTK_TEXT(m_text)->text_area);
 947     else
 948         return (window == GTK_ENTRY(m_text)->text_area);
 949 }
 950
 951 void wxTextCtrl::SetFont( const wxFont &WXUNUSED(font) )
 952 {
 953     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 954
 955     // doesn't work
 956 }
 957
 958 void wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
 959 {
 960     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 961
 962     // doesn't work
 963 }
 964
 965 void wxTextCtrl::SetBackgroundColour( const wxColour &colour )
 966 {
 967     wxCHECK_RET( m_text != NULL, _T("invalid text ctrl") );
 968
 969     wxControl::SetBackgroundColour( colour );
 970
 971     if (!m_widget->window) return;
 972
 973     wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
 974     if (sysbg.Red() == colour.Red() &&
 975         sysbg.Green() == colour.Green() &&
 976         sysbg.Blue() == colour.Blue())
 977     {
 978         return;
 979     }
 980
 981     if (!m_backgroundColour.Ok()) return;
 982
 983     if (m_windowStyle & wxTE_MULTILINE)
 984     {
 985         GdkWindow *window = GTK_TEXT(m_text)->text_area;
 986         if (!window) return;
 987         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 988         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 989         gdk_window_clear( window );
 990     }
 991 }
 992
 993 void wxTextCtrl::ApplyWidgetStyle()
 994 {
 995     if (m_windowStyle & wxTE_MULTILINE)
 996     {
 997         // how ?
 998     }
 999     else
1000     {
1001         SetWidgetStyle();
1002         gtk_widget_set_style( m_text, m_widgetStyle );
1003     }
1004 }
1005
1006 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1007 {
1008     Cut();
1009 }
1010
1011 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1012 {
1013     Copy();
1014 }
1015
1016 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1017 {
1018     Paste();
1019 }
1020
1021 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1022 {
1023     Undo();
1024 }
1025
1026 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1027 {
1028     Redo();
1029 }
1030
1031 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1032 {
1033     event.Enable( CanCut() );
1034 }
1035
1036 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1037 {
1038     event.Enable( CanCopy() );
1039 }
1040
1041 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1042 {
1043     event.Enable( CanPaste() );
1044 }
1045
1046 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1047 {
1048     event.Enable( CanUndo() );
1049 }
1050
1051 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1052 {
1053     event.Enable( CanRedo() );
1054 }