Documented wxMutexGuiEnter etc and thread sample.

[wxWidgets.git] / src / gtk / textctrl.cpp

diff --git a/src/gtk/textctrl.cpp b/src/gtk/textctrl.cpp
index 51ecbbf56a526dedc6c5179198bc423fc5d97836..e832dcdf05704efc246545ba426a6e515d07878c 100644 (file)
--- a/src/gtk/textctrl.cpp
+++ b/src/gtk/textctrl.cpp
@@ -2,9 +2,8 @@
 // Name:        textctrl.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Name:        textctrl.cpp
 // Purpose:
 // Author:      Robert Roebling

-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 


@@ -14,21 +13,64 @@
 
 #include "wx/textctrl.h"
 #include "wx/utils.h"
 
 #include "wx/textctrl.h"
 #include "wx/utils.h"

-#include <wx/intl.h>
+#include "wx/intl.h"
+#include "wx/settings.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ctype.h>
+
+#include "gdk/gdk.h"
+#include "gtk/gtk.h"
+#include "gdk/gdkkeysyms.h"
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern bool       g_blockEventsOnDrag;
+extern wxCursor   g_globalCursor;

 
 //-----------------------------------------------------------------------------
 //  "changed"
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 //  "changed"
 //-----------------------------------------------------------------------------
 

-static void gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
+static void
+gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
+{
+    if (!win->m_hasVMT) return;
+
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    win->SetModified();
+
+    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
+    event.SetString( win->GetValue() );
+    event.SetEventObject( win );
+    win->GetEventHandler()->ProcessEvent( event );
+}
+
+//-----------------------------------------------------------------------------
+// "changed" from vertical scrollbar
+//-----------------------------------------------------------------------------
+
+static void
+gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )

 {
 {

-  win->SetModified();
-  
-  wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->m_windowId );
-  wxString val( win->GetValue() );
-  if (!val.IsNull()) event.m_commandString = WXSTRINGCAST val;
-  event.SetEventObject( win );
-  win->GetEventHandler()->ProcessEvent( event );
+    if (!win->m_hasVMT) return;
+
+    if (g_isIdle)
+        wxapp_install_idle_handler();
+
+    win->CalculateScrollbar();

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -38,418 +80,911 @@ static void gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *
 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 
 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
 
 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)

-  EVT_CHAR(wxTextCtrl::OnChar)
+    EVT_CHAR(wxTextCtrl::OnChar)
+
+    EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
+    EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
+    EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
+    EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
+    EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
+
+    EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
+    EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
+    EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
+    EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
+    EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)

 END_EVENT_TABLE()
 
 END_EVENT_TABLE()
 

-wxTextCtrl::wxTextCtrl() : streambuf()
+wxTextCtrl::wxTextCtrl()

 {
 {

-  if (allocate()) setp(base(),ebuf());
-
-  m_modified = FALSE;
+    m_modified = FALSE;

 }
 
 }
 

-wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
-      const wxPoint &pos, const wxSize &size,
-      int style, const wxValidator& validator, const wxString &name ) : streambuf()
+wxTextCtrl::wxTextCtrl( wxWindow *parent,
+                        wxWindowID id,
+                        const wxString &value,
+                        const wxPoint &pos,
+                        const wxSize &size,
+                        long style,
+                        const wxValidator& validator,
+                        const wxString &name )

 {
 {

-  if (allocate()) setp(base(),ebuf());
-
-  m_modified = FALSE;
-  Create( parent, id, value, pos, size, style, validator, name );
+    m_modified = FALSE;
+    Create( parent, id, value, pos, size, style, validator, name );

 }
 
 }
 

-bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
-      const wxPoint &pos, const wxSize &size,
-      int style, const wxValidator& validator, const wxString &name )
+bool wxTextCtrl::Create( wxWindow *parent,
+                         wxWindowID id,
+                         const wxString &value,
+                         const wxPoint &pos,
+                         const wxSize &size,
+                         long style,
+                         const wxValidator& validator,
+                         const wxString &name )

 {
 {

-  m_needParent = TRUE;
+    m_needParent = TRUE;
+    m_acceptsFocus = TRUE;

 
 

-  PreCreation( parent, id, pos, size, style, name );
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, validator, name ))
+    {
+        wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
+        return FALSE;
+    }

 
 

-  SetValidator( validator );

 
 

-  bool bMultiLine = (style & wxTE_MULTILINE) != 0;
-  if ( bMultiLine )
-  {
-    // a multi-line edit control: create a vertical scrollbar by default and
-    // horizontal if requested
-    bool bHasHScrollbar = (style & wxHSCROLL) != 0;
-
-    // create our control...
-    m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
-
-    // ... and put into the upper left hand corner of the table
-    m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
-    gtk_table_attach(GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
-                     GTK_FILL | GTK_EXPAND,
-                     GTK_FILL | GTK_EXPAND | GTK_SHRINK,
-                     0, 0);
+    m_vScrollbarVisible = FALSE;

 
 

-    // put the horizontal scrollbar in the lower left hand corner
-    if (bHasHScrollbar) 
+    bool multi_line = (style & wxTE_MULTILINE) != 0;
+    if (multi_line)

     {
     {

-      GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
-      gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
-                       GTK_EXPAND | GTK_FILL,
+#if (GTK_MINOR_VERSION > 2)
+        /* a multi-line edit control: create a vertical scrollbar by default and
+           horizontal if requested */
+        bool bHasHScrollbar = (style & wxHSCROLL) != 0;
+#else
+        bool bHasHScrollbar = FALSE;
+#endif
+
+        /* create our control ... */
+        m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
+
+        /* ... and put into the upper left hand corner of the table */
+        m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
+        GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
+        gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
+                      (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
+                      (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK),
+                       0, 0);
+
+        /* always wrap words */
+        gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE );
+
+#if (GTK_MINOR_VERSION > 2)
+        /* put the horizontal scrollbar in the lower left hand corner */
+        if (bHasHScrollbar)
+        {
+            GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
+            GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS );
+            gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
+                       (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),

                        GTK_FILL,
                        0, 0);
                        GTK_FILL,
                        0, 0);

-      gtk_widget_show(hscrollbar);
-    }
+            gtk_widget_show(hscrollbar);
+
+            /* don't wrap lines, otherwise we wouldn't need the scrollbar */
+            gtk_text_set_line_wrap( GTK_TEXT(m_text), FALSE );
+        }
+#endif

 
 

-    // finally, put the vertical scrollbar in the upper right corner
-    GtkWidget *vscrollbar = gtk_vscrollbar_new(GTK_TEXT(m_text)->vadj);
-    gtk_table_attach(GTK_TABLE(m_widget), vscrollbar, 1, 2, 0, 1,
+        /* finally, put the vertical scrollbar in the upper right corner */
+        m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj );
+        GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS );
+        gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1,

                      GTK_FILL,
                      GTK_FILL,

-                     GTK_EXPAND | GTK_FILL | GTK_SHRINK,
+                     (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK),

                      0, 0);
                      0, 0);

-    gtk_widget_show( vscrollbar );
-  }
-  else 
-  {
-    // a single-line text control: no need for scrollbars
-    m_widget =
-    m_text = gtk_entry_new();
-  }
+    }
+    else
+    {
+        /* a single-line text control: no need for scrollbars */
+        m_widget =
+          m_text = gtk_entry_new();
+    }

 
 

-  wxSize newSize = size;
-  if (newSize.x == -1) newSize.x = 80;
-  if (newSize.y == -1) newSize.y = 26;
-  SetSize( newSize.x, newSize.y );
+    wxSize new_size = size,
+           sizeBest = DoGetBestSize();
+    if (new_size.x == -1)
+        new_size.x = sizeBest.x;
+    if (new_size.y == -1)
+        new_size.y = sizeBest.y;

 
 

-  PostCreation();
+    if ((new_size.x != size.x) || (new_size.y != size.y))
+        SetSize( new_size.x, new_size.y );

 
 

-  if (bMultiLine) 
-  {
-    gtk_widget_realize(m_text);
-    gtk_widget_show(m_text);
-  }
+    m_parent->DoAddChild( this );

 
 

-  // we want to be notified about text changes
-  gtk_signal_connect(GTK_OBJECT(m_text), "changed",
-                     GTK_SIGNAL_FUNC(gtk_text_changed_callback),
-                     (gpointer)this);
+    PostCreation();

 
 

-  if (!value.IsNull())
-  {
-    gint tmp = 0;
-    gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
-  }
+    if (multi_line)
+        gtk_widget_show(m_text);

 
 

-  if (style & wxTE_READONLY)
-  {
-  }
-  else
-  {
-    if (bMultiLine)
-      gtk_text_set_editable( GTK_TEXT(m_text), 1 );
-  }
+    /* we want to be notified about text changes */
+    gtk_signal_connect( GTK_OBJECT(m_text), "changed",
+      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+    if (multi_line)
+    {
+        gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
+          (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
+    }
+
+    if (!value.IsEmpty())
+    {
+        gint tmp = 0;
+
+#if GTK_MINOR_VERSION == 0
+        // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in
+        // gtk_editable_insert_text()
+        gtk_widget_realize(m_text);
+#endif // GTK 1.0
+
+#if wxUSE_UNICODE
+        wxWX2MBbuf val = value.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp );
+#else // !Unicode
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
+#endif // Unicode/!Unicode
+
+        if (multi_line)
+        {
+            /* bring editable's cursor uptodate. bug in GTK. */
+
+            GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
+        }
+    }
+
+    if (style & wxTE_PASSWORD)
+    {
+        if (!multi_line)
+            gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE );
+    }
+
+    if (style & wxTE_READONLY)
+    {
+        if (!multi_line)
+            gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE );
+    }
+    else
+    {
+        if (multi_line)
+            gtk_text_set_editable( GTK_TEXT(m_text), 1 );
+    }
+
+    SetBackgroundColour( wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW) );
+    SetForegroundColour( parent->GetForegroundColour() );
+
+    m_cursor = wxCursor( wxCURSOR_IBEAM );

 
 

-  Show( TRUE );
+    Show( TRUE );

 
 

-  return TRUE;
+    return TRUE;
+}
+
+void wxTextCtrl::CalculateScrollbar()
+{
+    if ((m_windowStyle & wxTE_MULTILINE) == 0) return;
+
+    GtkAdjustment *adj = GTK_TEXT(m_text)->vadj;
+
+    if (adj->upper - adj->page_size < 0.8)
+    {
+        if (m_vScrollbarVisible)
+        {
+            gtk_widget_hide( m_vScrollbar );
+            m_vScrollbarVisible = FALSE;
+        }
+    }
+    else
+    {
+        if (!m_vScrollbarVisible)
+        {
+            gtk_widget_show( m_vScrollbar );
+            m_vScrollbarVisible = TRUE;
+        }
+    }

 }
 
 wxString wxTextCtrl::GetValue() const
 {
 }
 
 wxString wxTextCtrl::GetValue() const
 {

-  wxString tmp;
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_text) );
-    tmp = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
-  }
-  else
-  {
-    tmp = gtk_entry_get_text( GTK_ENTRY(m_text) );
-  }
-  return tmp;
+    wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") );
+
+    wxString tmp;
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+        tmp = wxString(text,*wxConvCurrent);
+        g_free( text );
+    }
+    else
+    {
+        tmp = wxString(gtk_entry_get_text( GTK_ENTRY(m_text) ),*wxConvCurrent);
+    }
+    return tmp;

 }
 
 void wxTextCtrl::SetValue( const wxString &value )
 {
 }
 
 void wxTextCtrl::SetValue( const wxString &value )
 {

-  wxString tmp = "";
-  if (!value.IsNull()) tmp = value;
-  if (m_windowStyle & wxTE_MULTILINE)
-  {
-    gint len = gtk_text_get_length( GTK_TEXT(m_text) );
-    gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
-    len = 0;
-    gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp, tmp.Length(), &len );
-  }
-  else
-  {
-    gtk_entry_set_text( GTK_ENTRY(m_text), tmp );
-  }
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    wxString tmp = wxT("");
+    if (!value.IsNull()) tmp = value;
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
+        len = 0;
+#if wxUSE_UNICODE
+        wxWX2MBbuf tmpbuf = tmp.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp.mbc_str(), tmp.Length(), &len );
+#endif
+    }
+    else
+    {
+        gtk_entry_set_text( GTK_ENTRY(m_text), tmp.mbc_str() );
+    }

 }
 
 void wxTextCtrl::WriteText( const wxString &text )
 {
 }
 
 void wxTextCtrl::WriteText( const wxString &text )
 {

-  if (text.IsNull()) return;
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (text.IsEmpty()) return;
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        /* this moves the cursor pos to behind the inserted text */
+        gint len = GTK_EDITABLE(m_text)->current_pos;
+
+#if wxUSE_UNICODE
+        wxWX2MBbuf buf = text.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
+#endif
+
+        /* bring editable's cursor uptodate. bug in GTK. */
+        GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
+    }
+    else
+    {
+        /* this moves the cursor pos to behind the inserted text */
+        gint len = GTK_EDITABLE(m_text)->current_pos;
+#if wxUSE_UNICODE
+        wxWX2MBbuf buf = text.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
+#endif

 
 

+        /* bring editable's cursor uptodate. bug in GTK. */
+        GTK_EDITABLE(m_text)->current_pos += text.Len();
+
+        /* bring entry's cursor uptodate. bug in GTK. */
+        gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos );
+    }
+}
+
+void wxTextCtrl::AppendText( const wxString &text )
+{
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (text.IsEmpty()) return;
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        bool hasSpecialAttributes = m_font.Ok() ||
+                                    m_foregroundColour.Ok() ||
+                                    m_backgroundColour.Ok();
+        if ( hasSpecialAttributes )
+        {
+             gtk_text_insert( GTK_TEXT(m_text),
+                              m_font.GetInternalFont(),
+                              m_foregroundColour.GetColor(),
+                              m_backgroundColour.GetColor(),
+                              text.mbc_str(), text.length());
+
+        }
+        else
+        {
+            /* we'll insert at the last position */
+            gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+#if wxUSE_UNICODE
+            wxWX2MBbuf buf = text.mbc_str();
+            gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &len );
+#else
+            gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
+#endif
+        }
+
+        /* bring editable's cursor uptodate. bug in GTK. */
+        GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
+    }
+    else
+    {
+        gtk_entry_append_text( GTK_ENTRY(m_text), text.mbc_str() );
+    }
+}
+
+wxString wxTextCtrl::GetLineText( long lineNo ) const
+{

   if (m_windowStyle & wxTE_MULTILINE)
   {
     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
   if (m_windowStyle & wxTE_MULTILINE)
   {
     gint len = gtk_text_get_length( GTK_TEXT(m_text) );

-    gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
+    char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+
+    if (text)
+    {
+        wxString buf(wxT(""));
+        long i;
+        int currentLine = 0;
+        for (i = 0; currentLine != lineNo && text[i]; i++ )
+          if (text[i] == '\n')
+            currentLine++;
+        // Now get the text
+        int j;
+        for (j = 0; text[i] && text[i] != '\n'; i++, j++ )
+            buf += text[i];
+
+        g_free( text );
+        return buf;
+    }
+    else
+      return wxEmptyString;

   }
   else
   {
   }
   else
   {

-    gtk_entry_append_text( GTK_ENTRY(m_text), text );
+    if (lineNo == 0) return GetValue();
+    return wxEmptyString;

   }
 }
 
   }
 }
 

-bool wxTextCtrl::LoadFile( const wxString &WXUNUSED(file) )
+void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )

 {
 {

-  wxFAIL_MSG( "wxTextCtrl::LoadFile not implemented" );
-
-  return FALSE;
+  /* If you implement this, don't forget to update the documentation!
+   * (file docs/latex/wx/text.tex) */
+    wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );

 }
 
 }
 

-bool wxTextCtrl::SaveFile( const wxString &WXUNUSED(file) )
+bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const

 {
 {

-  wxFAIL_MSG( "wxTextCtrl::SaveFile not implemented" );
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        wxString text = GetValue();
+
+        // cast to prevent warning. But pos really should've been unsigned.
+        if( (unsigned long)pos > text.Len()  )
+            return FALSE;
+
+        *x=0;   // First Col
+        *y=0;   // First Line
+
+        const wxChar* stop = text.c_str() + pos;
+        for ( const wxChar *p = text.c_str(); p < stop; p++ )
+        {
+            if (*p == wxT('\n'))
+            {
+                (*y)++;
+                *x=0;
+            }
+            else
+                (*x)++;
+        }
+    }
+    else // single line control
+    {
+        if ( pos <= GTK_ENTRY(m_text)->text_length )
+        {
+            *y = 0;
+            *x = pos;
+        }
+        else
+        {
+            // index out of bounds
+            return FALSE;
+        }
+    }

 
 

-  return FALSE;
+    return TRUE;

 }
 
 }
 

-/*
-wxString wxTextCtrl::GetLineText( long lineNo ) const
+long wxTextCtrl::XYToPosition(long x, long y ) const

 {
 {

-}
+    if (!(m_windowStyle & wxTE_MULTILINE)) return 0;

 
 

+    long pos=0;
+    for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'

 
 

-void wxTextCtrl::OnDropFiles( wxDropFilesEvent &event )
-{
-}
-
-long wxTextCtrl::PositionToXY( long pos, long *x, long *y ) const
-{
+    pos += x;
+    return pos;

 }
 
 }
 

-long wxTextCtrl::XYToPosition( long x, long y )
+int wxTextCtrl::GetLineLength(long lineNo) const

 {
 {

+    wxString str = GetLineText (lineNo);
+    return (int) str.Length();

 }
 
 }
 

-int wxTextCtrl::GetNumberOfLines()
+int wxTextCtrl::GetNumberOfLines() const

 {
 {

+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+        char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+
+        if (text)
+        {
+            int currentLine = 0;
+            for (int i = 0; i < len; i++ )
+            {
+                if (text[i] == '\n')
+                    currentLine++;
+            }
+            g_free( text );
+
+            // currentLine is 0 based, add 1 to get number of lines
+            return currentLine + 1;
+        }
+        else
+        {
+            return 0;
+        }
+    }
+    else
+    {
+        return 1;
+    }

 }
 
 }
 

-*/

 void wxTextCtrl::SetInsertionPoint( long pos )
 {
 void wxTextCtrl::SetInsertionPoint( long pos )
 {

-  int tmp = (int) pos;
-  if (m_windowStyle & wxTE_MULTILINE)
-    gtk_text_set_point( GTK_TEXT(m_text), tmp );
-  else
-    gtk_entry_set_position( GTK_ENTRY(m_text), tmp );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        /* seems to be broken in GTK 1.0.X:
+           gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
+
+        gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
+          GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+        /* we fake a set_point by inserting and deleting. as the user
+           isn't supposed to get to know about thos non-sense, we
+           disconnect so that no events are sent to the user program. */
+
+        gint tmp = (gint)pos;
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
+        gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
+
+        gtk_signal_connect( GTK_OBJECT(m_text), "changed",
+          GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+        /* bring editable's cursor uptodate. another bug in GTK. */
+
+        GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
+    }
+    else
+    {
+        gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
+
+        /* bring editable's cursor uptodate. bug in GTK. */
+
+        GTK_EDITABLE(m_text)->current_pos = (guint32)pos;
+    }

 }
 
 void wxTextCtrl::SetInsertionPointEnd()
 {
 }
 
 void wxTextCtrl::SetInsertionPointEnd()
 {

-  int pos = 0;
-  if (m_windowStyle & wxTE_MULTILINE)
-    pos = gtk_text_get_length( GTK_TEXT(m_text) );
-  else
-    pos = GTK_ENTRY(m_text)->text_length;
-  SetInsertionPoint( pos-1 );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+        SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text)));
+    else
+        gtk_entry_set_position( GTK_ENTRY(m_text), -1 );

 }
 
 void wxTextCtrl::SetEditable( bool editable )
 {
 }
 
 void wxTextCtrl::SetEditable( bool editable )
 {

-  if (m_windowStyle & wxTE_MULTILINE)
-    gtk_text_set_editable( GTK_TEXT(m_text), editable );
-  else
-    gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (m_windowStyle & wxTE_MULTILINE)
+        gtk_text_set_editable( GTK_TEXT(m_text), editable );
+    else
+        gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
+}
+
+void wxTextCtrl::DiscardEdits()
+{
+    m_modified = FALSE;

 }
 
 void wxTextCtrl::SetSelection( long from, long to )
 {
 }
 
 void wxTextCtrl::SetSelection( long from, long to )
 {

-  gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );

 }
 
 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 {
 }
 
 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 {

-  wxFAIL_MSG(_("wxTextCtrl::ShowPosition not implemented"));
+//    SetInsertionPoint( pos );

 }
 
 long wxTextCtrl::GetInsertionPoint() const
 {
 }
 
 long wxTextCtrl::GetInsertionPoint() const
 {

-  return (long) GTK_EDITABLE(m_text)->current_pos;
+    wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
+
+    return (long) GTK_EDITABLE(m_text)->current_pos;

 }
 
 long wxTextCtrl::GetLastPosition() const
 {
 }
 
 long wxTextCtrl::GetLastPosition() const
 {

-  int pos = 0;
-  if (m_windowStyle & wxTE_MULTILINE)
-    pos = gtk_text_get_length( GTK_TEXT(m_text) );
-  else
-    pos = GTK_ENTRY(m_text)->text_length;
-  return (long)pos-1;
+    wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
+
+    int pos = 0;
+    if (m_windowStyle & wxTE_MULTILINE)
+        pos = gtk_text_get_length( GTK_TEXT(m_text) );
+    else
+        pos = GTK_ENTRY(m_text)->text_length;
+
+    return (long)pos;

 }
 
 void wxTextCtrl::Remove( long from, long to )
 {
 }
 
 void wxTextCtrl::Remove( long from, long to )
 {

-  gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );

 }
 
 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 {
 }
 
 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 {

-  gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
-  if (value.IsNull()) return;
-  gint pos = (gint)to;
-  gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
+
+    if (!value.IsEmpty())
+    {
+        gint pos = (gint)from;
+#if wxUSE_UNICODE
+        wxWX2MBbuf buf = value.mbc_str();
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos );
+#else
+        gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
+#endif
+    }

 }
 
 void wxTextCtrl::Cut()
 {
 }
 
 void wxTextCtrl::Cut()
 {

-  gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+#if (GTK_MINOR_VERSION > 0)
+    gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) );
+#else
+    gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
+#endif

 }
 
 void wxTextCtrl::Copy()
 {
 }
 
 void wxTextCtrl::Copy()
 {

-  gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+#if (GTK_MINOR_VERSION > 0)
+    gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) );
+#else
+    gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
+#endif

 }
 
 void wxTextCtrl::Paste()
 {
 }
 
 void wxTextCtrl::Paste()
 {

-  gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+#if (GTK_MINOR_VERSION > 0)
+    gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) );
+#else
+    gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
+#endif

 }
 
 }
 

-void wxTextCtrl::Clear()
+bool wxTextCtrl::CanCopy() const

 {
 {

-  SetValue( "" );
+    // Can copy if there's a selection
+    long from, to;
+    GetSelection(& from, & to);
+    return (from != to) ;

 }
 
 }
 

-void wxTextCtrl::OnChar( wxKeyEvent &key_event )
+bool wxTextCtrl::CanCut() const

 {
 {

-  if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
-  {
-    wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
-    event.SetEventObject(this);
-    if (GetEventHandler()->ProcessEvent(event)) return;
-  }
-  else if (key_event.KeyCode() == WXK_TAB) 
-  {
-    wxNavigationKeyEvent event;
-    event.SetDirection( key_event.m_shiftDown );
-    event.SetWindowChange(FALSE);
-    event.SetEventObject(this);
+    // Can cut if there's a selection
+    long from, to;
+    GetSelection(& from, & to);
+    return (from != to) ;
+}

 
 

-    if (GetEventHandler()->ProcessEvent(event)) return;
-  }
-  key_event.Skip();
+bool wxTextCtrl::CanPaste() const
+{
+    return IsEditable() ;

 }
 
 }
 

-int wxTextCtrl::overflow( int WXUNUSED(c) )
+// Undo/redo
+void wxTextCtrl::Undo()

 {
 {

-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return EOF;
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );

 }
 
 }
 

-int wxTextCtrl::sync()
+void wxTextCtrl::Redo()

 {
 {

-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return 0;
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );

 }
 
 }
 

-int wxTextCtrl::underflow()
+bool wxTextCtrl::CanUndo() const

 {
 {

-  return EOF;
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
+    return FALSE;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
+bool wxTextCtrl::CanRedo() const

 {
 {

-  WriteText(s);
-  return *this;
+    // TODO
+    wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
+    return FALSE;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(float f)
+// If the return values from and to are the same, there is no
+// selection.
+void wxTextCtrl::GetSelection(long* from, long* to) const

 {
 {

-  static char buf[100];
-  sprintf(buf, "%.2f", f);
-  WriteText(buf);
-  return *this;
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if (!(GTK_EDITABLE(m_text)->has_selection))
+    {
+        if (from) *from = 0;
+        if (to)   *to = 0;
+        return;
+    }
+
+    if (from) *from = (long) GTK_EDITABLE(m_text)->selection_start_pos;
+    if (to)   *to = (long) GTK_EDITABLE(m_text)->selection_end_pos;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(double d)
+bool wxTextCtrl::IsEditable() const

 {
 {

-  static char buf[100];
-  sprintf(buf, "%.2f", d);
-  WriteText(buf);
-  return *this;
+    wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
+
+    return GTK_EDITABLE(m_text)->editable;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(int i)
+bool wxTextCtrl::IsModified() const

 {
 {

-  static char buf[100];
-  sprintf(buf, "%i", i);
-  WriteText(buf);
-  return *this;
+    return m_modified;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(long i)
+void wxTextCtrl::Clear()

 {
 {

-  static char buf[100];
-  sprintf(buf, "%ld", i);
-  WriteText(buf);
-  return *this;
+    SetValue( wxT("") );

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(const char c)
+void wxTextCtrl::OnChar( wxKeyEvent &key_event )

 {
 {

-  char buf[2];
+    wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+    if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
+    {
+        wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
+        event.SetEventObject(this);
+        if (GetEventHandler()->ProcessEvent(event)) return;
+    }
+
+    if ((key_event.KeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE))
+    {
+        wxWindow *top_frame = m_parent;
+        while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
+            top_frame = top_frame->GetParent();
+        GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
+
+        if (window->default_widget)
+        {
+            gtk_widget_activate (window->default_widget);
+            return;
+        }
+    }

 
 

-  buf[0] = c;
-  buf[1] = 0;
-  WriteText(buf);
-  return *this;
+    key_event.Skip();

 }
 
 GtkWidget* wxTextCtrl::GetConnectWidget()
 {
 }
 
 GtkWidget* wxTextCtrl::GetConnectWidget()
 {

-  return GTK_WIDGET(m_text);
+    return GTK_WIDGET(m_text);

 }
 
 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 {
 }
 
 bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window )
 {

-  if (m_windowStyle & wxTE_MULTILINE)
-    return (window == GTK_TEXT(m_text)->text_area);
-  else
-    return (window == GTK_ENTRY(m_text)->text_area);
+    if (m_windowStyle & wxTE_MULTILINE)
+        return (window == GTK_TEXT(m_text)->text_area);
+    else
+        return (window == GTK_ENTRY(m_text)->text_area);

 }
 
 }
 

-void wxTextCtrl::SetFont( const wxFont &font )
+// the font will change for subsequent text insertiongs
+bool wxTextCtrl::SetFont( const wxFont &font )

 {
 {

-  if (((wxFont*)&font)->Ok())
-    m_font = font;
-  else
-    m_font = *wxSWISS_FONT;
-  
-  GtkStyle *style = (GtkStyle*) NULL;
-  if (!m_hasOwnStyle)
-  {
-    m_hasOwnStyle = TRUE;
-    style = gtk_style_copy( gtk_widget_get_style( m_text ) );
-  }
-  else
-  {
-    style = gtk_widget_get_style( m_text );
-  }
-  
-  gdk_font_unref( style->font );
-  style->font = gdk_font_ref( m_font.GetInternalFont( 1.0 ) );
-  
-  gtk_widget_set_style( m_text, style );
+    wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
+
+    if ( !wxWindowBase::SetFont(font) )
+    {
+        // font didn't change, nothing to do
+        return FALSE;
+    }
+
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        // for compatibility with other ports: the font is a global controls
+        // characteristic, so change the font globally
+        wxString value = GetValue();
+        if ( !value.IsEmpty() )
+        {
+            Clear();
+
+            AppendText(value);
+        }
+    }
+
+    return TRUE;
+}
+
+bool wxTextCtrl::SetForegroundColour( const wxColour &WXUNUSED(colour) )
+{
+    wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
+
+    // doesn't work
+    return FALSE;
+}
+
+bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
+{
+    wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
+
+    wxControl::SetBackgroundColour( colour );
+
+    if (!m_widget->window)
+        return FALSE;
+
+    wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
+    if (sysbg.Red() == colour.Red() &&
+        sysbg.Green() == colour.Green() &&
+        sysbg.Blue() == colour.Blue())
+    {
+        return FALSE; // FIXME or TRUE?
+    }
+
+    if (!m_backgroundColour.Ok())
+        return FALSE;
+
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        GdkWindow *window = GTK_TEXT(m_text)->text_area;
+        if (!window)
+            return FALSE;
+        m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
+        gdk_window_set_background( window, m_backgroundColour.GetColor() );
+        gdk_window_clear( window );
+    }
+
+    return TRUE;
+}
+
+void wxTextCtrl::ApplyWidgetStyle()
+{
+    if (m_windowStyle & wxTE_MULTILINE)
+    {
+        // how ?
+    }
+    else
+    {
+        SetWidgetStyle();
+        gtk_widget_set_style( m_text, m_widgetStyle );
+    }

 }
 
 }
 

+void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+    Cut();
+}

 
 

+void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+    Copy();
+}
+
+void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+    Paste();
+}
+
+void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
+{
+    Undo();
+}
+
+void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+    Redo();
+}
+
+void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCut() );
+}
+
+void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCopy() );
+}
+
+void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+    event.Enable( CanPaste() );
+}
+
+void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanUndo() );
+}
+
+void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanRedo() );
+}
+
+void wxTextCtrl::OnInternalIdle()
+{
+    wxCursor cursor = m_cursor;
+    if (g_globalCursor.Ok()) cursor = g_globalCursor;
+
+    if (cursor.Ok())
+    {
+        GdkWindow *window = (GdkWindow*) NULL;
+        if (HasFlag(wxTE_MULTILINE))
+            window = GTK_TEXT(m_text)->text_area;
+        else
+            window = GTK_ENTRY(m_text)->text_area;
+
+        if (window)
+            gdk_window_set_cursor( window, cursor.GetCursor() );
+
+        if (!g_globalCursor.Ok())
+            cursor = *wxSTANDARD_CURSOR;
+
+        window = m_widget->window;
+        if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
+            gdk_window_set_cursor( window, cursor.GetCursor() );
+    }
+
+    UpdateWindowUI();
+}
+
+wxSize wxTextCtrl::DoGetBestSize() const
+{
+    // FIXME should be different for multi-line controls...
+    wxSize ret( wxControl::DoGetBestSize() );
+    return wxSize(80, ret.y);
+}