refresh added when the item text or image is changed so it's redrawn

[wxWidgets.git] / src / gtk1 / window.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        window.cpp
// Purpose:
// Author:      Robert Roebling
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling, Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////


#ifdef __GNUG__
#pragma implementation "window.h"
#endif

#include "wx/defs.h"
#include "wx/window.h"
#include "wx/dc.h"
#include "wx/frame.h"
#include "wx/app.h"
#include "wx/layout.h"
#include "wx/utils.h"
#include "wx/dialog.h"
#include "wx/msgdlg.h"
#if wxUSE_DRAG_AND_DROP
#include "wx/dnd.h"
#endif
#include "wx/tooltip.h"
#include "wx/menu.h"
#include "wx/statusbr.h"
#include "wx/intl.h"
#include "wx/settings.h"
#include "wx/log.h"

#include <math.h>

#include "gdk/gdk.h"
#include "gtk/gtk.h"
#include "gdk/gdkprivate.h"
#include "gdk/gdkkeysyms.h"
#include "wx/gtk/win_gtk.h"

//-----------------------------------------------------------------------------
// documentation on internals
//-----------------------------------------------------------------------------

/*
   I have been asked several times about writing some documentation about
   the GTK port of wxWindows, especially its internal structures. Obviously,
   you cannot understand wxGTK without knowing a little about the GTK, but
   some more information about what the wxWindow, which is the base class
   for all other window classes, does seems required as well.

   What does wxWindow do? It contains the common interface for the following
   jobs of its descendants:

   1) Define the rudimentary behaviour common to all window classes, such as
   resizing, intercepting user input (so as to make it possible to use these
   events for special purposes in a derived class), window names etc.

   2) Provide the possibility to contain and manage children, if the derived
   class is allowed to contain children, which holds true for those window
   classes which do not display a native GTK widget. To name them, these
   classes are wxPanel, wxScrolledWindow, wxDialog, wxFrame. The MDI frame-
   work classes are a special case and are handled a bit differently from
   the rest. The same holds true for the wxNotebook class.

   3) Provide the possibility to draw into a client area of a window. This,
   too, only holds true for classes that do not display a native GTK widget
   as above.

   4) Provide the entire mechanism for scrolling widgets. This actual inter-
   face for this is usually in wxScrolledWindow, but the GTK implementation
   is in this class.

   5) A multitude of helper or extra methods for special purposes, such as
   Drag'n'Drop, managing validators etc.

   Normally one might expect, that one wxWindows window would always correspond
   to one GTK widget. Under GTK, there is no such allround widget that has all
   the functionality. Moreover, the GTK defines a client area as a different
   widget from the actual widget you are handling. Last but not least some
   special classes (e.g. wxFrame) handle different categories of widgets and
   still have the possibility to draw something in the client area.
   It was therefore required to write a special purpose GTK widget, that would
   represent a client area in the sense of wxWindows capable to do the jobs
   2), 3) and 4). I have written this class and it resides in win_gtk.c of
   this directory.

   All windows must have a widget, with which they interact with other under-
   lying GTK widgets. It is this widget, e.g. that has to be resized etc and
   thw wxWindow class has a member variable called m_widget which holds a
   pointer to this widget. When the window class represents a GTK native widget,
   this is (in most cases) the only GTK widget the class manages. E.g. the
   wxStatitText class handles only a GtkLabel widget a pointer to which you
   can find in m_widget (defined in wxWindow)

   When the class has a client area for drawing into and for containing children
   it has to handle the client area widget (of the type GtkMyFixed, defined in
   win_gtk.c), but there could be any number of widgets, handled by a class
   The common rule for all windows is only, that the widget that interacts with
   the rest of GTK must be referenced in m_widget and all other widgets must be
   children of this widget on the GTK level. The top-most widget, which also
   represents the client area, must be in the m_wxwindow field and must be of
   the type GtkMyFixed.

   As I said, the window classes that display a GTK native widget only have
   one widget, so in the case of e.g. the wxButton class m_widget holds a
   pointer to a GtkButton widget. But windows with client areas (for drawing
   and children) have a m_widget field that is a pointer to a GtkScrolled-
   Window and a m_wxwindow field that is pointer to a GtkMyFixed and this
   one is (in the GTK sense) a child of the GtkScrolledWindow.

   If the m_wxwindow field is set, then all input to this widget is inter-
   cepted and sent to the wxWindows class. If not, all input to the widget
   that gets pointed to by m_widget gets intercepted and sent to the class.

*/

//-------------------------------------------------------------------------
// conditional compilation
//-------------------------------------------------------------------------

#if (GTK_MINOR_VERSION == 1)
#if (GTK_MICRO_VERSION >= 5)
#define NEW_GTK_SCROLL_CODE
#endif
#endif

//-----------------------------------------------------------------------------
// (debug)
//-----------------------------------------------------------------------------

#ifdef __WXDEBUG__

static gint gtk_debug_focus_in_callback( GtkWidget *WXUNUSED(widget),
                                         GdkEvent *WXUNUSED(event),
                                         const char *name )
{
    printf( "FOCUS NOW AT: " );
    printf( name );
    printf( "\n" );

    return FALSE;
}

void debug_focus_in( GtkWidget* widget, const char* name, const char *window )
{
    return;

    wxString tmp = name;
    tmp += " FROM ";
    tmp += window;

    char *s = new char[tmp.Length()+1];

    strcpy( s, WXSTRINGCAST tmp );

    gtk_signal_connect( GTK_OBJECT(widget), "focus_in_event",
      GTK_SIGNAL_FUNC(gtk_debug_focus_in_callback), (gpointer)s );
}

#endif

//-----------------------------------------------------------------------------
// data
//-----------------------------------------------------------------------------

extern wxList     wxPendingDelete;
extern wxList     wxTopLevelWindows;
extern bool       g_blockEventsOnDrag;
extern bool       g_blockEventsOnScroll;
static bool       g_capturing = FALSE;
static wxWindow  *g_focusWindow = (wxWindow*) NULL;

// hack: we need something to pass to gtk_menu_popup, so we store the time of
// the last click here
static guint32 gs_timeLastClick = 0;

//-----------------------------------------------------------------------------
// "expose_event" (of m_wxwindow, not of m_widget)
//-----------------------------------------------------------------------------

static void gtk_window_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_event, wxWindow *win )
{
    if (!win->HasVMT()) return;

    win->m_updateRegion.Union( gdk_event->area.x,
                               gdk_event->area.y,
                               gdk_event->area.width,
                               gdk_event->area.height );

    if (gdk_event->count > 0) return;

/*
    printf( "OnExpose from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    wxPaintEvent event( win->GetId() );
    event.SetEventObject( win );
    win->GetEventHandler()->ProcessEvent( event );

    win->m_updateRegion.Clear();
}

//-----------------------------------------------------------------------------
// "draw" (of m_wxwindow, not of m_widget)
//-----------------------------------------------------------------------------

static void gtk_window_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxWindow *win )
{
    if (!win->HasVMT()) return;

    win->m_updateRegion.Union( rect->x, rect->y, rect->width, rect->height );

    wxPaintEvent event( win->GetId() );
    event.SetEventObject( win );
    win->GetEventHandler()->ProcessEvent( event );

    win->m_updateRegion.Clear();
}

//-----------------------------------------------------------------------------
// "key_press_event" from any window
//-----------------------------------------------------------------------------

static gint gtk_window_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxWindow *win )
{
    if (!win->HasVMT()) return FALSE;
    if (g_blockEventsOnDrag) return FALSE;

/*
    printf( "OnKeyPress from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    long key_code = 0;
    switch (gdk_event->keyval)
    {
        case GDK_BackSpace:     key_code = WXK_BACK;        break;
        case GDK_Tab:           key_code = WXK_TAB;         break;
        case GDK_Linefeed:      key_code = WXK_RETURN;      break;
        case GDK_Clear:         key_code = WXK_CLEAR;       break;
        case GDK_Return:        key_code = WXK_RETURN;      break;
        case GDK_Pause:         key_code = WXK_PAUSE;       break;
        case GDK_Scroll_Lock:   key_code = WXK_SCROLL;      break;
        case GDK_Escape:        key_code = WXK_ESCAPE;      break;
        case GDK_Delete:        key_code = WXK_DELETE;      break;
        case GDK_Home:          key_code = WXK_HOME;        break;
        case GDK_Left:          key_code = WXK_LEFT;        break;
        case GDK_Up:            key_code = WXK_UP;          break;
        case GDK_Right:         key_code = WXK_RIGHT;       break;
        case GDK_Down:          key_code = WXK_DOWN;        break;
        case GDK_Prior:         key_code = WXK_PRIOR;       break;
//      case GDK_Page_Up:       key_code = WXK_PAGEUP;      break;
        case GDK_Next:          key_code = WXK_NEXT;        break;
//      case GDK_Page_Down:     key_code = WXK_PAGEDOWN;    break;
        case GDK_End:           key_code = WXK_END;         break;
        case GDK_Begin:         key_code = WXK_HOME;        break;
        case GDK_Select:        key_code = WXK_SELECT;      break;
        case GDK_Print:         key_code = WXK_PRINT;       break;
        case GDK_Execute:       key_code = WXK_EXECUTE;     break;
        case GDK_Insert:        key_code = WXK_INSERT;      break;
        case GDK_Num_Lock:      key_code = WXK_NUMLOCK;     break;
        case GDK_KP_Tab:        key_code = WXK_TAB;         break;
        case GDK_KP_Enter:      key_code = WXK_RETURN;      break;
        case GDK_KP_Home:       key_code = WXK_HOME;        break;
        case GDK_KP_Left:       key_code = WXK_LEFT;        break;
        case GDK_KP_Up:         key_code = WXK_UP;          break;
        case GDK_KP_Right:      key_code = WXK_RIGHT;       break;
        case GDK_KP_Down:       key_code = WXK_DOWN;        break;
        case GDK_KP_Prior:      key_code = WXK_PRIOR;       break;
//      case GDK_KP_Page_Up:    key_code = WXK_PAGEUP;      break;
        case GDK_KP_Next:       key_code = WXK_NEXT;        break;
//      case GDK_KP_Page_Down:  key_code = WXK_PAGEDOWN;    break;
        case GDK_KP_End:        key_code = WXK_END;         break;
        case GDK_KP_Begin:      key_code = WXK_HOME;        break;
        case GDK_KP_Insert:     key_code = WXK_INSERT;      break;
        case GDK_KP_Delete:     key_code = WXK_DELETE;      break;
        case GDK_KP_Multiply:   key_code = WXK_MULTIPLY;    break;
        case GDK_KP_Add:        key_code = WXK_ADD;         break;
        case GDK_KP_Separator:  key_code = WXK_SEPARATOR;   break;
        case GDK_KP_Subtract:   key_code = WXK_SUBTRACT;    break;
        case GDK_KP_Decimal:    key_code = WXK_DECIMAL;     break;
        case GDK_KP_Divide:     key_code = WXK_DIVIDE;      break;
        case GDK_KP_0:          key_code = WXK_NUMPAD0;     break;
        case GDK_KP_1:          key_code = WXK_NUMPAD1;     break;
        case GDK_KP_2:          key_code = WXK_NUMPAD2;     break;
        case GDK_KP_3:          key_code = WXK_NUMPAD3;     break;
        case GDK_KP_4:          key_code = WXK_NUMPAD4;     break;
        case GDK_KP_5:          key_code = WXK_NUMPAD5;     break;
        case GDK_KP_6:          key_code = WXK_NUMPAD6;     break;
        case GDK_KP_7:          key_code = WXK_NUMPAD7;     break;
        case GDK_KP_8:          key_code = WXK_NUMPAD7;     break;
        case GDK_KP_9:          key_code = WXK_NUMPAD9;     break;
        case GDK_F1:            key_code = WXK_F1;          break;
        case GDK_F2:            key_code = WXK_F2;          break;
        case GDK_F3:            key_code = WXK_F3;          break;
        case GDK_F4:            key_code = WXK_F4;          break;
        case GDK_F5:            key_code = WXK_F5;          break;
        case GDK_F6:            key_code = WXK_F6;          break;
        case GDK_F7:            key_code = WXK_F7;          break;
        case GDK_F8:            key_code = WXK_F8;          break;
        case GDK_F9:            key_code = WXK_F9;          break;
        case GDK_F10:           key_code = WXK_F10;         break;
        case GDK_F11:           key_code = WXK_F11;         break;
        case GDK_F12:           key_code = WXK_F12;         break;
        default:
        {
            if ((gdk_event->keyval >= 0x20) && (gdk_event->keyval <= 0xFF))
                key_code = gdk_event->keyval;
        }
    }

    if (!key_code) return FALSE;

    wxKeyEvent event( wxEVT_KEY_DOWN );
    event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
    event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
    event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
    event.m_keyCode = key_code;
    event.m_x = 0;
    event.m_y = 0;
    event.SetEventObject( win );

    bool ret = win->GetEventHandler()->ProcessEvent( event );

    if (!ret)
    {
        wxWindow *ancestor = win;
        while (ancestor)
        {
            int command = ancestor->GetAcceleratorTable()->GetCommand( event );
            if (command != -1)
            {
                wxCommandEvent command_event( wxEVT_COMMAND_MENU_SELECTED, command );
                ret = ancestor->GetEventHandler()->ProcessEvent( command_event );
                break;
            }
            ancestor = ancestor->GetParent();
        }
    }

    // win is a control: tab can be propagated up
    if ((!ret) && (gdk_event->keyval == GDK_Tab) && ((win->m_windowStyle & wxTE_PROCESS_TAB) == 0))
    {
        wxNavigationKeyEvent new_event;
        new_event.SetDirection( !(gdk_event->state & GDK_SHIFT_MASK) );
        new_event.SetWindowChange( FALSE );
        new_event.SetCurrentFocus( win );
        ret = win->GetEventHandler()->ProcessEvent( new_event );
    }

/*
    // win is a panel: up can be propagated to the panel
    if ((!ret) && (win->m_wxwindow) && (win->m_parent) && (win->m_parent->AcceptsFocus()) &&
        (gdk_event->keyval == GDK_Up))
    {
        win->m_parent->SetFocus();
        ret = TRUE;
    }

    // win is a panel: left/right can be propagated to the panel
    if ((!ret) && (win->m_wxwindow) &&
        ((gdk_event->keyval == GDK_Right) || (gdk_event->keyval == GDK_Left) ||
         (gdk_event->keyval == GDK_Up) || (gdk_event->keyval == GDK_Down)))
    {
        wxNavigationKeyEvent new_event;
        new_event.SetDirection( (gdk_event->keyval == GDK_Right) || (gdk_event->keyval == GDK_Down) );
        new_event.SetCurrentFocus( win );
        ret = win->GetEventHandler()->ProcessEvent( new_event );
    }
*/

    if (ret)
    {
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
    }

    return ret;
}

//-----------------------------------------------------------------------------
// "key_release_event" from any window
//-----------------------------------------------------------------------------

static gint gtk_window_key_release_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxWindow *win )
{
    if (!win->HasVMT()) return FALSE;
    if (g_blockEventsOnDrag) return FALSE;

/*
    printf( "OnKeyRelease from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    long key_code = 0;
    switch (gdk_event->keyval)
    {
        case GDK_BackSpace:     key_code = WXK_BACK;        break;
        case GDK_Tab:           key_code = WXK_TAB;         break;
        case GDK_Linefeed:      key_code = WXK_RETURN;      break;
        case GDK_Clear:         key_code = WXK_CLEAR;       break;
        case GDK_Return:        key_code = WXK_RETURN;      break;
        case GDK_Pause:         key_code = WXK_PAUSE;       break;
        case GDK_Scroll_Lock:   key_code = WXK_SCROLL;      break;
        case GDK_Escape:        key_code = WXK_ESCAPE;      break;
        case GDK_Delete:        key_code = WXK_DELETE;      break;
        case GDK_Home:          key_code = WXK_HOME;        break;
        case GDK_Left:          key_code = WXK_LEFT;        break;
        case GDK_Up:            key_code = WXK_UP;          break;
        case GDK_Right:         key_code = WXK_RIGHT;       break;
        case GDK_Down:          key_code = WXK_DOWN;        break;
        case GDK_Prior:         key_code = WXK_PRIOR;       break;
//      case GDK_Page_Up:       key_code = WXK_PAGEUP;      break;
        case GDK_Next:          key_code = WXK_NEXT;        break;
//      case GDK_Page_Down:     key_code = WXK_PAGEDOWN;    break;
        case GDK_End:           key_code = WXK_END;         break;
        case GDK_Begin:         key_code = WXK_HOME;        break;
        case GDK_Select:        key_code = WXK_SELECT;      break;
        case GDK_Print:         key_code = WXK_PRINT;       break;
        case GDK_Execute:       key_code = WXK_EXECUTE;     break;
        case GDK_Insert:        key_code = WXK_INSERT;      break;
        case GDK_Num_Lock:      key_code = WXK_NUMLOCK;     break;
        case GDK_KP_Tab:        key_code = WXK_TAB;         break;
        case GDK_KP_Enter:      key_code = WXK_RETURN;      break;
        case GDK_KP_Home:       key_code = WXK_HOME;        break;
        case GDK_KP_Left:       key_code = WXK_LEFT;        break;
        case GDK_KP_Up:         key_code = WXK_UP;          break;
        case GDK_KP_Right:      key_code = WXK_RIGHT;       break;
        case GDK_KP_Down:       key_code = WXK_DOWN;        break;
        case GDK_KP_Prior:      key_code = WXK_PRIOR;       break;
//      case GDK_KP_Page_Up:    key_code = WXK_PAGEUP;      break;
        case GDK_KP_Next:       key_code = WXK_NEXT;        break;
//      case GDK_KP_Page_Down:  key_code = WXK_PAGEDOWN;    break;
        case GDK_KP_End:        key_code = WXK_END;         break;
        case GDK_KP_Begin:      key_code = WXK_HOME;        break;
        case GDK_KP_Insert:     key_code = WXK_INSERT;      break;
        case GDK_KP_Delete:     key_code = WXK_DELETE;      break;
        case GDK_KP_Multiply:   key_code = WXK_MULTIPLY;    break;
        case GDK_KP_Add:        key_code = WXK_ADD;         break;
        case GDK_KP_Separator:  key_code = WXK_SEPARATOR;   break;
        case GDK_KP_Subtract:   key_code = WXK_SUBTRACT;    break;
        case GDK_KP_Decimal:    key_code = WXK_DECIMAL;     break;
        case GDK_KP_Divide:     key_code = WXK_DIVIDE;      break;
        case GDK_KP_0:          key_code = WXK_NUMPAD0;     break;
        case GDK_KP_1:          key_code = WXK_NUMPAD1;     break;
        case GDK_KP_2:          key_code = WXK_NUMPAD2;     break;
        case GDK_KP_3:          key_code = WXK_NUMPAD3;     break;
        case GDK_KP_4:          key_code = WXK_NUMPAD4;     break;
        case GDK_KP_5:          key_code = WXK_NUMPAD5;     break;
        case GDK_KP_6:          key_code = WXK_NUMPAD6;     break;
        case GDK_KP_7:          key_code = WXK_NUMPAD7;     break;
        case GDK_KP_8:          key_code = WXK_NUMPAD7;     break;
        case GDK_KP_9:          key_code = WXK_NUMPAD9;     break;
        case GDK_F1:            key_code = WXK_F1;          break;
        case GDK_F2:            key_code = WXK_F2;          break;
        case GDK_F3:            key_code = WXK_F3;          break;
        case GDK_F4:            key_code = WXK_F4;          break;
        case GDK_F5:            key_code = WXK_F5;          break;
        case GDK_F6:            key_code = WXK_F6;          break;
        case GDK_F7:            key_code = WXK_F7;          break;
        case GDK_F8:            key_code = WXK_F8;          break;
        case GDK_F9:            key_code = WXK_F9;          break;
        case GDK_F10:           key_code = WXK_F10;         break;
        case GDK_F11:           key_code = WXK_F11;         break;
        case GDK_F12:           key_code = WXK_F12;         break;
        default:
        {
            if ((gdk_event->keyval >= 0x20) && (gdk_event->keyval <= 0xFF))
                key_code = gdk_event->keyval;
        }
    }

    if (!key_code) return FALSE;

    wxKeyEvent event( wxEVT_KEY_UP );
    event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
    event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
    event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
    event.m_keyCode = key_code;
    event.m_x = 0;
    event.m_y = 0;
    event.SetEventObject( win );

    bool ret = win->GetEventHandler()->ProcessEvent( event );

    if (ret)
    {
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
    }

    return ret;
}

//-----------------------------------------------------------------------------
// "button_press_event"
//-----------------------------------------------------------------------------

static gint gtk_window_button_press_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxWindow *win )
{
    if (!win->IsOwnGtkWindow( gdk_event->window )) return TRUE;

    if (g_blockEventsOnDrag) return TRUE;
    if (g_blockEventsOnScroll) return TRUE;

    if (win->m_wxwindow)
    {
        if (GTK_WIDGET_CAN_FOCUS(win->m_wxwindow) && !GTK_WIDGET_HAS_FOCUS (win->m_wxwindow) )
        {
            gtk_widget_grab_focus (win->m_wxwindow);

/*
            printf( "GrabFocus from " );
            if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
                printf( win->GetClassInfo()->GetClassName() );
            printf( ".\n" );
*/

        }
    }

    if (!win->HasVMT()) return TRUE;

/*
    printf( "OnButtonPress from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    wxEventType event_type = wxEVT_LEFT_DOWN;

    if (gdk_event->button == 1)
    {
        switch (gdk_event->type)
        {
            case GDK_BUTTON_PRESS: event_type = wxEVT_LEFT_DOWN; break;
            case GDK_2BUTTON_PRESS: event_type = wxEVT_LEFT_DCLICK; break;
            default:  break;
        }
    }
    else if (gdk_event->button == 2)
    {
        switch (gdk_event->type)
        {
            case GDK_BUTTON_PRESS: event_type = wxEVT_MIDDLE_DOWN; break;
            case GDK_2BUTTON_PRESS: event_type = wxEVT_MIDDLE_DCLICK; break;
            default:  break;
        }
    }
    else if (gdk_event->button == 3)
    {
        switch (gdk_event->type)
        {
            case GDK_BUTTON_PRESS: event_type = wxEVT_RIGHT_DOWN; break;
            case GDK_2BUTTON_PRESS: event_type = wxEVT_RIGHT_DCLICK; break;
            default:  break;
        }
    }

    wxMouseEvent event( event_type );
    event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
    event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
    event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
    event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
    event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
    event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);

    event.m_x = (long)gdk_event->x;
    event.m_y = (long)gdk_event->y;

    // Some control don't have their own X window and thus cannot get
    // any events.

    if (!g_capturing)
    {
        wxNode *node = win->GetChildren().First();
        while (node)
        {
            wxWindow *child = (wxWindow*)node->Data();

            if (child->m_isStaticBox)
            {
                // wxStaticBox is transparent in the box itself
                int x = event.m_x;
                int y = event.m_y;
                int xx1 = child->m_x;
                int yy1 = child->m_y;
                int xx2 = child->m_x + child->m_width;
                int yy2 = child->m_x + child->m_height;

                // left
                if (((x >= xx1) && (x <= xx1+10) && (y >= yy1) && (y <= yy2)) ||
                // right
                    ((x >= xx2-10) && (x <= xx2) && (y >= yy1) && (y <= yy2)) ||
                // top
                    ((x >= xx1) && (x <= xx2) && (y >= yy1) && (y <= yy1+10)) ||
                // bottom
                    ((x >= xx1) && (x <= xx2) && (y >= yy2-1) && (y <= yy2)))
                {
                    win = child;
                    event.m_x -= child->m_x;
                    event.m_y -= child->m_y;
                    break;
                }

            }
            else
            {
                if ((child->m_wxwindow == (GtkWidget*) NULL) &&
                    (child->m_x <= event.m_x) &&
                    (child->m_y <= event.m_y) &&
                    (child->m_x+child->m_width  >= event.m_x) &&
                    (child->m_y+child->m_height >= event.m_y))
                {
                    win = child;
                    event.m_x -= child->m_x;
                    event.m_y -= child->m_y;
                    break;
                }
            }
            node = node->Next();
        }
    }

    wxPoint pt(win->GetClientAreaOrigin());
    event.m_x -= pt.x;
    event.m_y -= pt.y;

    event.SetEventObject( win );

    gs_timeLastClick = gdk_event->time;

    if (win->GetEventHandler()->ProcessEvent( event ))
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "button_press_event" );

    return TRUE;
}

//-----------------------------------------------------------------------------
// "button_release_event"
//-----------------------------------------------------------------------------

static gint gtk_window_button_release_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxWindow *win )
{
    if (!win->IsOwnGtkWindow( gdk_event->window )) return TRUE;

    if (g_blockEventsOnDrag) return TRUE;
    if (g_blockEventsOnScroll) return TRUE;

    if (!win->HasVMT()) return TRUE;

/*
    printf( "OnButtonRelease from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    wxEventType event_type = wxEVT_NULL;

    switch (gdk_event->button)
    {
        case 1: event_type = wxEVT_LEFT_UP; break;
        case 2: event_type = wxEVT_MIDDLE_UP; break;
        case 3: event_type = wxEVT_RIGHT_UP; break;
    }

    wxMouseEvent event( event_type );
    event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
    event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
    event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
    event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
    event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
    event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);
    event.m_x = (long)gdk_event->x;
    event.m_y = (long)gdk_event->y;

    // Some control don't have their own X window and thus cannot get
    // any events.

    if (!g_capturing)
    {
        wxNode *node = win->GetChildren().First();
        while (node)
        {
            wxWindow *child = (wxWindow*)node->Data();

            if (child->m_isStaticBox)
            {
                // wxStaticBox is transparent in the box itself
                int x = event.m_x;
                int y = event.m_y;
                int xx1 = child->m_x;
                int yy1 = child->m_y;
                int xx2 = child->m_x + child->m_width;
                int yy2 = child->m_x + child->m_height;

                // left
                if (((x >= xx1) && (x <= xx1+10) && (y >= yy1) && (y <= yy2)) ||
                // right
                    ((x >= xx2-10) && (x <= xx2) && (y >= yy1) && (y <= yy2)) ||
                // top
                    ((x >= xx1) && (x <= xx2) && (y >= yy1) && (y <= yy1+10)) ||
                // bottom
                    ((x >= xx1) && (x <= xx2) && (y >= yy2-1) && (y <= yy2)))
                {
                    win = child;
                    event.m_x -= child->m_x;
                    event.m_y -= child->m_y;
                    break;
                }

            }
            else
            {
                if ((child->m_wxwindow == (GtkWidget*) NULL) &&
                    (child->m_x <= event.m_x) &&
                    (child->m_y <= event.m_y) &&
                    (child->m_x+child->m_width  >= event.m_x) &&
                    (child->m_y+child->m_height >= event.m_y))
                {
                    win = child;
                    event.m_x -= child->m_x;
                    event.m_y -= child->m_y;
                    break;
                }
            }
            node = node->Next();
        }
    }

    wxPoint pt(win->GetClientAreaOrigin());
    event.m_x -= pt.x;
    event.m_y -= pt.y;

    event.SetEventObject( win );

    if (win->GetEventHandler()->ProcessEvent( event ))
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "button_release_event" );

    return TRUE;
}

//-----------------------------------------------------------------------------
// "motion_notify_event"
//-----------------------------------------------------------------------------

static gint gtk_window_motion_notify_callback( GtkWidget *widget, GdkEventMotion *gdk_event, wxWindow *win )
{
    if (gdk_event->is_hint)
    {
       int x = 0;
       int y = 0;
       GdkModifierType state;
       gdk_window_get_pointer(gdk_event->window, &x, &y, &state);
       gdk_event->x = x;
       gdk_event->y = y;
       gdk_event->state = state;
    }

    if (!win->IsOwnGtkWindow( gdk_event->window )) return TRUE;

    if (g_blockEventsOnDrag) return TRUE;
    if (g_blockEventsOnScroll) return TRUE;

    if (!win->HasVMT()) return TRUE;

/*
    printf( "OnMotion from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
      printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    wxMouseEvent event( wxEVT_MOTION );
    event.m_shiftDown = (gdk_event->state & GDK_SHIFT_MASK);
    event.m_controlDown = (gdk_event->state & GDK_CONTROL_MASK);
    event.m_altDown = (gdk_event->state & GDK_MOD1_MASK);
    event.m_metaDown = (gdk_event->state & GDK_MOD2_MASK);
    event.m_leftDown = (gdk_event->state & GDK_BUTTON1_MASK);
    event.m_middleDown = (gdk_event->state & GDK_BUTTON2_MASK);
    event.m_rightDown = (gdk_event->state & GDK_BUTTON3_MASK);

    event.m_x = (long)gdk_event->x;
    event.m_y = (long)gdk_event->y;

    // Some control don't have their own X window and thus cannot get
    // any events.

    if (!g_capturing)
    {
        wxNode *node = win->GetChildren().First();
        while (node)
        {
            wxWindow *child = (wxWindow*)node->Data();

            if (child->m_isStaticBox)
            {
                // wxStaticBox is transparent in the box itself
                int x = event.m_x;
                int y = event.m_y;
                int xx1 = child->m_x;
                int yy1 = child->m_y;
                int xx2 = child->m_x + child->m_width;
                int yy2 = child->m_x + child->m_height;

                // left
                if (((x >= xx1) && (x <= xx1+10) && (y >= yy1) && (y <= yy2)) ||
                // right
                    ((x >= xx2-10) && (x <= xx2) && (y >= yy1) && (y <= yy2)) ||
                // top
                    ((x >= xx1) && (x <= xx2) && (y >= yy1) && (y <= yy1+10)) ||
                // bottom
                    ((x >= xx1) && (x <= xx2) && (y >= yy2-1) && (y <= yy2)))
                {
                    win = child;
                    event.m_x -= child->m_x;
                    event.m_y -= child->m_y;
                    break;
                }

            }
            else
            {
                if ((child->m_wxwindow == (GtkWidget*) NULL) &&
                    (child->m_x <= event.m_x) &&
                    (child->m_y <= event.m_y) &&
                    (child->m_x+child->m_width  >= event.m_x) &&
                    (child->m_y+child->m_height >= event.m_y))
                {
                    win = child;
                    event.m_x -= child->m_x;
                    event.m_y -= child->m_y;
                    break;
                }
            }
            node = node->Next();
        }
    }

    wxPoint pt(win->GetClientAreaOrigin());
    event.m_x -= pt.x;
    event.m_y -= pt.y;

    event.SetEventObject( win );

    if (win->GetEventHandler()->ProcessEvent( event ))
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "motion_notify_event" );

    return TRUE;
}

//-----------------------------------------------------------------------------
// "focus_in_event"
//-----------------------------------------------------------------------------

static gint gtk_window_focus_in_callback( GtkWidget *widget, GdkEvent *WXUNUSED(event), wxWindow *win )
{
    if (g_blockEventsOnDrag) return TRUE;

    g_focusWindow = win;

    if (win->m_wxwindow)
    {
        if (GTK_WIDGET_CAN_FOCUS(win->m_wxwindow))
        {
            GTK_WIDGET_SET_FLAGS (win->m_wxwindow, GTK_HAS_FOCUS);
/*
            printf( "SetFocus flag from " );
            if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
                printf( win->GetClassInfo()->GetClassName() );
            printf( ".\n" );
*/
        }
    }

    if (!win->HasVMT()) return TRUE;

/*
    printf( "OnSetFocus from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( "   " );
    printf( WXSTRINGCAST win->GetLabel() );
    printf( ".\n" );
*/

    wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
    event.SetEventObject( win );

    if (win->GetEventHandler()->ProcessEvent( event ))
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus_in_event" );

    return TRUE;
}

//-----------------------------------------------------------------------------
// "focus_out_event"
//-----------------------------------------------------------------------------

static gint gtk_window_focus_out_callback( GtkWidget *widget, GdkEvent *WXUNUSED(event), wxWindow *win )
{
    if (g_blockEventsOnDrag) return TRUE;
    if (win->m_wxwindow)
    {
      if (GTK_WIDGET_CAN_FOCUS(win->m_wxwindow))
          GTK_WIDGET_UNSET_FLAGS (win->m_wxwindow, GTK_HAS_FOCUS);
    }

    if (!win->HasVMT()) return TRUE;

/*
    printf( "OnKillFocus from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
    event.SetEventObject( win );

    if (win->GetEventHandler()->ProcessEvent( event ))
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus_out_event" );

    return TRUE;
}

//-----------------------------------------------------------------------------
// "enter_notify_event"
//-----------------------------------------------------------------------------

static gint gtk_window_enter_callback( GtkWidget *widget, GdkEventCrossing *gdk_event, wxWindow *win )
{
    if (g_blockEventsOnDrag) return TRUE;

    if ((widget->window) && (win->m_cursor))
        gdk_window_set_cursor( widget->window, win->m_cursor->GetCursor() );

    if (widget->window != gdk_event->window) return TRUE;

    if (!win->HasVMT()) return TRUE;

/*
    printf( "OnEnter from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    wxMouseEvent event( wxEVT_ENTER_WINDOW );
    event.SetEventObject( win );

    int x = 0;
    int y = 0;
    GdkModifierType state = (GdkModifierType)0;

    gdk_window_get_pointer( widget->window, &x, &y, &state );

    event.m_shiftDown = (state & GDK_SHIFT_MASK);
    event.m_controlDown = (state & GDK_CONTROL_MASK);
    event.m_altDown = (state & GDK_MOD1_MASK);
    event.m_metaDown = (state & GDK_MOD2_MASK);
    event.m_leftDown = (state & GDK_BUTTON1_MASK);
    event.m_middleDown = (state & GDK_BUTTON2_MASK);
    event.m_rightDown = (state & GDK_BUTTON3_MASK);

    event.m_x = (long)x;
    event.m_y = (long)y;

    wxPoint pt(win->GetClientAreaOrigin());
    event.m_x -= pt.x;
    event.m_y -= pt.y;

    if (win->GetEventHandler()->ProcessEvent( event ))
       gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "enter_notify_event" );

    return TRUE;
}

//-----------------------------------------------------------------------------
// "leave_notify_event"
//-----------------------------------------------------------------------------

static gint gtk_window_leave_callback( GtkWidget *widget, GdkEventCrossing *gdk_event, wxWindow *win )
{
    if (g_blockEventsOnDrag) return TRUE;

    if ((widget->window) && (win->m_cursor))
        gdk_window_set_cursor( widget->window, wxSTANDARD_CURSOR->GetCursor() );

    if (widget->window != gdk_event->window) return TRUE;

    if (!win->HasVMT()) return TRUE;

/*
    printf( "OnLeave from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    wxMouseEvent event( wxEVT_LEAVE_WINDOW );
    event.SetEventObject( win );

    int x = 0;
    int y = 0;
    GdkModifierType state = (GdkModifierType)0;

    gdk_window_get_pointer( widget->window, &x, &y, &state );

    event.m_shiftDown = (state & GDK_SHIFT_MASK);
    event.m_controlDown = (state & GDK_CONTROL_MASK);
    event.m_altDown = (state & GDK_MOD1_MASK);
    event.m_metaDown = (state & GDK_MOD2_MASK);
    event.m_leftDown = (state & GDK_BUTTON1_MASK);
    event.m_middleDown = (state & GDK_BUTTON2_MASK);
    event.m_rightDown = (state & GDK_BUTTON3_MASK);

    event.m_x = (long)x;
    event.m_y = (long)y;

    wxPoint pt(win->GetClientAreaOrigin());
    event.m_x -= pt.x;
    event.m_y -= pt.y;

    if (win->GetEventHandler()->ProcessEvent( event ))
        gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "leave_notify_event" );

    return TRUE;
}

//-----------------------------------------------------------------------------
// "value_changed" from m_vAdjust
//-----------------------------------------------------------------------------

static void gtk_window_vscroll_callback( GtkWidget *WXUNUSED(widget), wxWindow *win )
{
    if (g_blockEventsOnDrag) return;

/*
    printf( "OnVScroll from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    if (!win->HasVMT()) return;

    float diff = win->m_vAdjust->value - win->m_oldVerticalPos;
    if (fabs(diff) < 0.2) return;

    wxEventType command = wxEVT_NULL;

    float line_step = win->m_vAdjust->step_increment;
    float page_step = win->m_vAdjust->page_increment;

    if (win->m_isScrolling)
    {
        command = wxEVT_SCROLL_THUMBTRACK;
    }
    else
    {
        if (fabs(win->m_vAdjust->value-win->m_vAdjust->lower) < 0.2) command = wxEVT_SCROLL_BOTTOM;
        else if (fabs(win->m_vAdjust->value-win->m_vAdjust->upper) < 0.2) command = wxEVT_SCROLL_TOP;
        else if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN;
        else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP;
        else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN;
        else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP;
        else command = wxEVT_SCROLL_THUMBTRACK;
    }

    int value = (int)(win->m_vAdjust->value+0.5);

    wxScrollEvent event( command, win->GetId(), value, wxVERTICAL );
    event.SetEventObject( win );
    win->GetEventHandler()->ProcessEvent( event );
}

//-----------------------------------------------------------------------------
// "value_changed" from m_hAdjust
//-----------------------------------------------------------------------------

static void gtk_window_hscroll_callback( GtkWidget *WXUNUSED(widget), wxWindow *win )
{
    if (g_blockEventsOnDrag) return;

/*
    printf( "OnHScroll from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    if (!win->HasVMT()) return;

    float diff = win->m_hAdjust->value - win->m_oldHorizontalPos;
    if (fabs(diff) < 0.2) return;

    wxEventType command = wxEVT_NULL;

    float line_step = win->m_hAdjust->step_increment;
    float page_step = win->m_hAdjust->page_increment;

    if (win->m_isScrolling)
    {
        command = wxEVT_SCROLL_THUMBTRACK;
    }
    else
    {
        if (fabs(win->m_hAdjust->value-win->m_hAdjust->lower) < 0.2) command = wxEVT_SCROLL_BOTTOM;
        else if (fabs(win->m_hAdjust->value-win->m_hAdjust->upper) < 0.2) command = wxEVT_SCROLL_TOP;
        else if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN;
        else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP;
        else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN;
        else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP;
        else command = wxEVT_SCROLL_THUMBTRACK;
    }

    int value = (int)(win->m_hAdjust->value+0.5);

    wxScrollEvent event( command, win->GetId(), value, wxHORIZONTAL );
    event.SetEventObject( win );
    win->GetEventHandler()->ProcessEvent( event );
}

//-----------------------------------------------------------------------------
// "changed" from m_vAdjust
//-----------------------------------------------------------------------------

static void gtk_window_vscroll_change_callback( GtkWidget *WXUNUSED(widget), wxWindow *win )
{
    if (g_blockEventsOnDrag) return;

/*
    printf( "OnVScroll change from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    if (!win->HasVMT()) return;

    wxEventType command = wxEVT_SCROLL_THUMBTRACK;
    int value = (int)(win->m_vAdjust->value+0.5);

    wxScrollEvent event( command, win->GetId(), value, wxVERTICAL );
    event.SetEventObject( win );
    win->GetEventHandler()->ProcessEvent( event );
}

//-----------------------------------------------------------------------------
// "changed" from m_hAdjust
//-----------------------------------------------------------------------------

static void gtk_window_hscroll_change_callback( GtkWidget *WXUNUSED(widget), wxWindow *win )
{
    if (g_blockEventsOnDrag) return;

/*
    printf( "OnHScroll change from " );
    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
        printf( win->GetClassInfo()->GetClassName() );
    printf( ".\n" );
*/

    if (!win->HasVMT()) return;

    wxEventType command = wxEVT_SCROLL_THUMBTRACK;
    int value = (int)(win->m_hAdjust->value+0.5);

    wxScrollEvent event( command, win->GetId(), value, wxHORIZONTAL );
    event.SetEventObject( win );
    win->GetEventHandler()->ProcessEvent( event );
}

//-----------------------------------------------------------------------------
// "button_press_event" from scrollbar
//-----------------------------------------------------------------------------

static gint gtk_scrollbar_button_press_callback( GtkRange *WXUNUSED(widget),
                                                 GdkEventButton *WXUNUSED(gdk_event),
                                                 wxWindow *win )
{
//  don't test here as we can release the mouse while being over
//  a different window then the slider
//
//    if (gdk_event->window != widget->slider) return FALSE;

    win->m_isScrolling = TRUE;
    g_blockEventsOnScroll = TRUE;

    return FALSE;
}

//-----------------------------------------------------------------------------
// "button_release_event" from scrollbar
//-----------------------------------------------------------------------------

static gint gtk_scrollbar_button_release_callback( GtkRange *widget,
                                                   GdkEventButton *WXUNUSED(gdk_event),
                                                   wxWindow *win )
{

//  don't test here as we can release the mouse while being over
//  a different window then the slider
//
//    if (gdk_event->window != widget->slider) return FALSE;

    GtkScrolledWindow *s_window = GTK_SCROLLED_WINDOW(win->m_widget);

    if (widget == GTK_RANGE(s_window->vscrollbar))
        gtk_signal_emit_by_name( GTK_OBJECT(win->m_hAdjust), "value_changed" );
    else
        gtk_signal_emit_by_name( GTK_OBJECT(win->m_vAdjust), "value_changed" );

    win->m_isScrolling = FALSE;
    g_blockEventsOnScroll = FALSE;

    return FALSE;
}

//-----------------------------------------------------------------------------
// InsertChild for wxWindow.
//-----------------------------------------------------------------------------

/* Callback for wxWindow. This very strange beast has to be used because
 * C++ has no virtual methods in a constructor. We have to emulate a
 * virtual function here as wxNotebook requires a different way to insert
 * a child in it. I had opted for creating a wxNotebookPage window class
 * which would have made this superfluous (such in the MDI window system),
 * but no-one was listening to me... */

static void wxInsertChildInWindow( wxWindow* parent, wxWindow* child )
{
    gtk_myfixed_put( GTK_MYFIXED(parent->m_wxwindow),
                     GTK_WIDGET(child->m_widget),
                       child->m_x,
                     child->m_y );

    gtk_widget_set_usize( GTK_WIDGET(child->m_widget),
                          child->m_width,
                          child->m_height );

    if (wxIS_KIND_OF(parent,wxFrame))
    {
        parent->m_sizeSet = FALSE;
    }

    if (parent->m_windowStyle & wxTAB_TRAVERSAL)
    {
        /* we now allow a window to get the focus as long as it
           doesn't have any children. */
        GTK_WIDGET_UNSET_FLAGS( parent->m_wxwindow, GTK_CAN_FOCUS );
    }
}

//-----------------------------------------------------------------------------
// global functions
//-----------------------------------------------------------------------------

wxWindow* wxGetActiveWindow()
{
  return g_focusWindow;
}

//-----------------------------------------------------------------------------
// wxWindow
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxWindow,wxEvtHandler)

BEGIN_EVENT_TABLE(wxWindow, wxEvtHandler)
    EVT_SIZE(wxWindow::OnSize)
    EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
    EVT_INIT_DIALOG(wxWindow::OnInitDialog)
    EVT_KEY_DOWN(wxWindow::OnKeyDown)
END_EVENT_TABLE()

wxWindow::wxWindow()
{
    m_widget = (GtkWidget *) NULL;
    m_wxwindow = (GtkWidget *) NULL;
    m_parent = (wxWindow *) NULL;
    m_children.DeleteContents( FALSE );

    m_x = 0;
    m_y = 0;
    m_width = 0;
    m_height = 0;
    m_minWidth = -1;
    m_minHeight = -1;
    m_maxWidth = -1;
    m_maxHeight = -1;

    m_retCode = 0;

    m_eventHandler = this;
    m_windowValidator = (wxValidator *) NULL;

    m_windowId = -1;

    m_cursor = (wxCursor *) NULL;
    m_font = *wxSWISS_FONT;
    m_windowStyle = 0;
    m_windowName = "noname";

    m_constraints = (wxLayoutConstraints *) NULL;
    m_constraintsInvolvedIn = (wxList *) NULL;
    m_windowSizer = (wxSizer *) NULL;
    m_sizerParent = (wxWindow *) NULL;
    m_autoLayout = FALSE;

    m_sizeSet = FALSE;
    m_hasVMT = FALSE;
    m_needParent = TRUE;

    m_hasScrolling = FALSE;
    m_isScrolling = FALSE;
    m_hAdjust = (GtkAdjustment*) NULL;
    m_vAdjust = (GtkAdjustment*) NULL;
    m_oldHorizontalPos = 0.0;
    m_oldVerticalPos = 0.0;

    m_isShown = FALSE;
    m_isEnabled = TRUE;

#if wxUSE_DRAG_AND_DROP
    m_dropTarget = (wxDropTarget*) NULL;
#endif
    m_resizing = FALSE;
    m_scrollGC = (GdkGC*) NULL;
    m_widgetStyle = (GtkStyle*) NULL;

    m_insertCallback = wxInsertChildInWindow;

    m_clientObject = (wxClientData*) NULL;
    m_clientData = NULL;

    m_isStaticBox = FALSE;
    m_acceptsFocus = FALSE;

#if wxUSE_TOOLTIPS
    m_toolTip = (wxToolTip*) NULL;
#endif // wxUSE_TOOLTIPS
}

wxWindow::wxWindow( wxWindow *parent, wxWindowID id,
                    const wxPoint &pos, const wxSize &size,
                    long style, const wxString &name  )
{
    m_insertCallback = wxInsertChildInWindow;
    Create( parent, id, pos, size, style, name );
}

bool wxWindow::Create( wxWindow *parent, wxWindowID id,
                       const wxPoint &pos, const wxSize &size,
                       long style, const wxString &name  )
{
    m_isShown = FALSE;
    m_isEnabled = TRUE;
    m_needParent = TRUE;

    PreCreation( parent, id, pos, size, style, name );

    m_widget = gtk_scrolled_window_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL );
    GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );

#ifdef __WXDEBUG__
    debug_focus_in( m_widget, "wxWindow::m_widget", name );
#endif

    GtkScrolledWindow *s_window = GTK_SCROLLED_WINDOW(m_widget);

#ifdef __WXDEBUG__
    debug_focus_in( s_window->hscrollbar, "wxWindow::hsrcollbar", name );
    debug_focus_in( s_window->vscrollbar, "wxWindow::vsrcollbar", name );
#endif

    GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT(m_widget)->klass );
    scroll_class->scrollbar_spacing = 0;

    gtk_scrolled_window_set_policy( s_window, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );

    m_oldHorizontalPos = 0.0;
    m_oldVerticalPos = 0.0;

    m_hAdjust = gtk_range_get_adjustment( GTK_RANGE(s_window->hscrollbar) );
    m_vAdjust = gtk_range_get_adjustment( GTK_RANGE(s_window->vscrollbar) );

    m_wxwindow = gtk_myfixed_new();

#ifdef __WXDEBUG__
    debug_focus_in( m_wxwindow, "wxWindow::m_wxwindow", name );
#endif

#ifdef NEW_GTK_SCROLL_CODE
    gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), m_wxwindow );
    GtkViewport *viewport = GTK_VIEWPORT(s_window->child);
#else
    gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
    GtkViewport *viewport = GTK_VIEWPORT(s_window->viewport);
#endif

#ifdef __WXDEBUG__
    debug_focus_in( GTK_WIDGET(viewport), "wxWindow::viewport", name );
#endif

    if (m_windowStyle & wxRAISED_BORDER)
    {
        gtk_viewport_set_shadow_type( viewport, GTK_SHADOW_OUT );
    }
    else if (m_windowStyle & wxSUNKEN_BORDER)
    {
        gtk_viewport_set_shadow_type( viewport, GTK_SHADOW_IN );
    }
    else
    {
        gtk_viewport_set_shadow_type( viewport, GTK_SHADOW_NONE );
    }

    if (m_windowStyle & wxTAB_TRAVERSAL)
    {
        /* we now allow a window to get the focus as long as it
           doesn't have any children. */
        GTK_WIDGET_SET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
        m_acceptsFocus = FALSE;
    }
    else
    {
        GTK_WIDGET_SET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
        m_acceptsFocus = TRUE;
    }

    // shut the viewport up
    gtk_viewport_set_hadjustment( viewport, (GtkAdjustment*) gtk_adjustment_new( 0.0, 0.0, 0.0, 0.0, 0.0, 0.0) );
    gtk_viewport_set_vadjustment( viewport, (GtkAdjustment*) gtk_adjustment_new( 0.0, 0.0, 0.0, 0.0, 0.0, 0.0) );

    // I _really_ don't want scrollbars in the beginning
    m_vAdjust->lower = 0.0;
    m_vAdjust->upper = 1.0;
    m_vAdjust->value = 0.0;
    m_vAdjust->step_increment = 1.0;
    m_vAdjust->page_increment = 1.0;
    m_vAdjust->page_size = 5.0;
    gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" );
    m_hAdjust->lower = 0.0;
    m_hAdjust->upper = 1.0;
    m_hAdjust->value = 0.0;
    m_hAdjust->step_increment = 1.0;
    m_hAdjust->page_increment = 1.0;
    m_hAdjust->page_size = 5.0;
    gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );

    // these handlers block mouse events to any window during scrolling
    // such as motion events and prevent GTK and wxWindows from fighting
    // over where the slider should be

    gtk_signal_connect( GTK_OBJECT(s_window->vscrollbar), "button_press_event",
          (GtkSignalFunc)gtk_scrollbar_button_press_callback, (gpointer) this );

    gtk_signal_connect( GTK_OBJECT(s_window->hscrollbar), "button_press_event",
          (GtkSignalFunc)gtk_scrollbar_button_press_callback, (gpointer) this );

    gtk_signal_connect( GTK_OBJECT(s_window->vscrollbar), "button_release_event",
          (GtkSignalFunc)gtk_scrollbar_button_release_callback, (gpointer) this );

    gtk_signal_connect( GTK_OBJECT(s_window->hscrollbar), "button_release_event",
          (GtkSignalFunc)gtk_scrollbar_button_release_callback, (gpointer) this );

    // these handers het notified when screen updates are required either when
    // scrolling or when the window size (and therefore scrollbar configuration)
    // has changed

    gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed",
          (GtkSignalFunc) gtk_window_hscroll_callback, (gpointer) this );
    gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed",
          (GtkSignalFunc) gtk_window_vscroll_callback, (gpointer) this );

    gtk_signal_connect( GTK_OBJECT(m_hAdjust), "changed",
          (GtkSignalFunc) gtk_window_hscroll_change_callback, (gpointer) this );
    gtk_signal_connect(GTK_OBJECT(m_vAdjust), "changed",
          (GtkSignalFunc) gtk_window_vscroll_change_callback, (gpointer) this );

    gtk_widget_show( m_wxwindow );

    if (m_parent) m_parent->AddChild( this );

    (m_parent->m_insertCallback)( m_parent, this );

    PostCreation();

    Show( TRUE );

    return TRUE;
}

wxWindow::~wxWindow()
{
    m_hasVMT = FALSE;

#if wxUSE_DRAG_AND_DROP
    wxDELETE(m_dropTarget);
#endif

#if wxUSE_TOOLTIPS
    wxDELETE(m_toolTip);
#endif // wxUSE_TOOLTIPS

    if (m_parent) m_parent->RemoveChild( this );
    if (m_widget) Show( FALSE );

    DestroyChildren();

    if (m_widgetStyle) gtk_style_unref( m_widgetStyle );

    if (m_scrollGC) gdk_gc_unref( m_scrollGC );

    if (m_wxwindow) gtk_widget_destroy( m_wxwindow );

    if (m_widget) gtk_widget_destroy( m_widget );

    if (m_cursor) delete m_cursor;

    DeleteRelatedConstraints();
    if (m_constraints)
    {
        // This removes any dangling pointers to this window
        // in other windows' constraintsInvolvedIn lists.
        UnsetConstraints(m_constraints);
        delete m_constraints;
        m_constraints = (wxLayoutConstraints *) NULL;
    }
    if (m_windowSizer)
    {
        delete m_windowSizer;
        m_windowSizer = (wxSizer *) NULL;
    }
    // If this is a child of a sizer, remove self from parent
    if (m_sizerParent) m_sizerParent->RemoveChild((wxWindow *)this);

    // Just in case the window has been Closed, but
    // we're then deleting immediately: don't leave
    // dangling pointers.
    wxPendingDelete.DeleteObject(this);

    // Just in case we've loaded a top-level window via
    // wxWindow::LoadNativeDialog but we weren't a dialog
    // class
    wxTopLevelWindows.DeleteObject(this);

    if (m_windowValidator) delete m_windowValidator;

    if (m_clientObject) delete m_clientObject;
}

void wxWindow::PreCreation( wxWindow *parent, wxWindowID id,
      const wxPoint &pos, const wxSize &size,
      long style, const wxString &name )
{
    wxASSERT_MSG( (!m_needParent) || (parent), "Need complete parent." );

    m_widget = (GtkWidget*) NULL;
    m_wxwindow = (GtkWidget*) NULL;
    m_hasVMT = FALSE;
    m_parent = parent;
    m_children.DeleteContents( FALSE );

    m_width = size.x;
    if (m_width == -1) m_width = 20;
    m_height = size.y;
    if (m_height == -1) m_height = 20;

    m_x = (int)pos.x;
    m_y = (int)pos.y;

    if (!m_needParent)  // some reasonable defaults
    {
        if (m_x == -1)
        {
            m_x = (gdk_screen_width () - m_width) / 2;
            if (m_x < 10) m_x = 10;
        }
        if (m_y == -1)
        {
            m_y = (gdk_screen_height () - m_height) / 2;
            if (m_y < 10) m_y = 10;
        }
    }

    m_minWidth = -1;
    m_minHeight = -1;
    m_maxWidth = -1;
    m_maxHeight = -1;

    m_retCode = 0;

    m_eventHandler = this;

    m_windowId = id == -1 ? wxNewId() : id;

    m_sizeSet = FALSE;

    m_cursor = new wxCursor( wxCURSOR_ARROW );
    m_font = *wxSWISS_FONT;
    m_backgroundColour = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
    m_foregroundColour = *wxBLACK;
    m_windowStyle = style;
    m_windowName = name;

    m_constraints = (wxLayoutConstraints *) NULL;
    m_constraintsInvolvedIn = (wxList *) NULL;
    m_windowSizer = (wxSizer *) NULL;
    m_sizerParent = (wxWindow *) NULL;
    m_autoLayout = FALSE;

    m_hasScrolling = FALSE;
    m_isScrolling = FALSE;
    m_hAdjust = (GtkAdjustment *) NULL;
    m_vAdjust = (GtkAdjustment *) NULL;
    m_oldHorizontalPos = 0.0;
    m_oldVerticalPos = 0.0;

    m_isShown = FALSE;
    m_isEnabled = TRUE;

#if wxUSE_DRAG_AND_DROP
    m_dropTarget = (wxDropTarget *) NULL;
#endif
    m_resizing = FALSE;
    m_windowValidator = (wxValidator *) NULL;
    m_scrollGC = (GdkGC*) NULL;
    m_widgetStyle = (GtkStyle*) NULL;

    m_clientObject = (wxClientData*)NULL;
    m_clientData = NULL;

    m_isStaticBox = FALSE;

#if wxUSE_TOOLTIPS
    m_toolTip = (wxToolTip*) NULL;
#endif // wxUSE_TOOLTIPS
}

void wxWindow::PostCreation()
{
    if (m_wxwindow)
    {
      gtk_signal_connect( GTK_OBJECT(m_wxwindow), "expose_event",
        GTK_SIGNAL_FUNC(gtk_window_expose_callback), (gpointer)this );

      gtk_signal_connect( GTK_OBJECT(m_wxwindow), "draw",
        GTK_SIGNAL_FUNC(gtk_window_draw_callback), (gpointer)this );
    }

    ConnectWidget( GetConnectWidget() );

    if (m_widget && m_parent) gtk_widget_realize( m_widget );

    if (m_wxwindow) gtk_widget_realize( m_wxwindow );

    SetCursor( *wxSTANDARD_CURSOR );

    m_hasVMT = TRUE;
}

void wxWindow::ConnectWidget( GtkWidget *widget )
{
    gtk_signal_connect( GTK_OBJECT(widget), "key_press_event",
      GTK_SIGNAL_FUNC(gtk_window_key_press_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "key_release_event",
      GTK_SIGNAL_FUNC(gtk_window_key_release_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "button_press_event",
      GTK_SIGNAL_FUNC(gtk_window_button_press_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "button_release_event",
      GTK_SIGNAL_FUNC(gtk_window_button_release_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "motion_notify_event",
      GTK_SIGNAL_FUNC(gtk_window_motion_notify_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "focus_in_event",
      GTK_SIGNAL_FUNC(gtk_window_focus_in_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "focus_out_event",
      GTK_SIGNAL_FUNC(gtk_window_focus_out_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "enter_notify_event",
      GTK_SIGNAL_FUNC(gtk_window_enter_callback), (gpointer)this );

    gtk_signal_connect( GTK_OBJECT(widget), "leave_notify_event",
      GTK_SIGNAL_FUNC(gtk_window_leave_callback), (gpointer)this );
}

bool wxWindow::HasVMT()
{
    return m_hasVMT;
}

bool wxWindow::Close( bool force )
{
    wxASSERT_MSG( (m_widget != NULL), "invalid window" );

    wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId);
    event.SetEventObject(this);
    event.SetForce(force);

    return GetEventHandler()->ProcessEvent(event);
}

bool wxWindow::Destroy()
{
    wxASSERT_MSG( (m_widget != NULL), "invalid window" );

    m_hasVMT = FALSE;
    delete this;
    return TRUE;
}

bool wxWindow::DestroyChildren()
{
    wxNode *node;
    while ((node = m_children.First()) != (wxNode *)NULL)
    {
        wxWindow *child;
        if ((child = (wxWindow *)node->Data()) != (wxWindow *)NULL)
        {
            delete child;
            if (m_children.Member(child)) delete node;
        }
    }
    return TRUE;
}

void wxWindow::PrepareDC( wxDC &WXUNUSED(dc) )
{
    // are we to set fonts here ?
}

wxPoint wxWindow::GetClientAreaOrigin() const
{
    return wxPoint(0,0);
}

void wxWindow::AdjustForParentClientOrigin( int& x, int& y, int sizeFlags )
{
    if (((sizeFlags & wxSIZE_NO_ADJUSTMENTS) == 0) && GetParent())
    {
        wxPoint pt(GetParent()->GetClientAreaOrigin());
        x += pt.x;
        y += pt.y;
    }
}

void wxWindow::SetSize( int x, int y, int width, int height, int sizeFlags )
{
    wxASSERT_MSG( (m_widget != NULL), "invalid window" );
    wxASSERT_MSG( (m_parent != NULL), "wxWindow::SetSize requires parent.\n" );

    if (m_resizing) return; // I don't like recursions
    m_resizing = TRUE;

    if (m_parent->m_wxwindow == NULL) // i.e. wxNotebook
    {
        // don't set the size for children of wxNotebook, just take the values.
        m_x = x;
        m_y = y;
        m_width = width;
        m_height = height;
    }
    else
    {
        int old_width = m_width;
        int old_height = m_height;

        if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
        {
            if (x != -1) m_x = x;
            if (y != -1) m_y = y;
            if (width != -1) m_width = width;
            if (height != -1) m_height = height;
        }
        else
        {
            m_x = x;
            m_y = y;
            m_width = width;
            m_height = height;
        }

        if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
        {
             if (width == -1) m_width = 80;
        }

        if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
        {
             if (height == -1) m_height = 26;
        }

        if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
        if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
        if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
        if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;

        wxPoint pt( m_parent->GetClientAreaOrigin() );
        gtk_myfixed_move( GTK_MYFIXED(m_parent->m_wxwindow), m_widget, m_x+pt.x, m_y+pt.y );

        if ((old_width != m_width) || (old_height != m_height))
             gtk_widget_set_usize( m_widget, m_width, m_height );
    }

    m_sizeSet = TRUE;

    wxSizeEvent event( wxSize(m_width,m_height), GetId() );
    event.SetEventObject( this );
    GetEventHandler()->ProcessEvent( event );

    m_resizing = FALSE;
}

void wxWindow::OnInternalIdle()
{
    UpdateWindowUI();
}

void wxWindow::SetSize( int width, int height )
{
    SetSize( -1, -1, width, height, wxSIZE_USE_EXISTING );
}

void wxWindow::Move( int x, int y )
{
    SetSize( x, y, -1, -1, wxSIZE_USE_EXISTING );
}

void wxWindow::GetSize( int *width, int *height ) const
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (width) (*width) = m_width;
    if (height) (*height) = m_height;
}

void wxWindow::SetClientSize( int width, int height )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (!m_wxwindow)
    {
        SetSize( width, height );
    }
    else
    {
        int dw = 0;
        int dh = 0;

        if (!m_hasScrolling)
        {
            GtkStyleClass *window_class = m_wxwindow->style->klass;

            if ((m_windowStyle & wxRAISED_BORDER) ||
                (m_windowStyle & wxSUNKEN_BORDER))
            {
                dw += 2 * window_class->xthickness;
                dh += 2 * window_class->ythickness;
            }
        }
        else
        {
            GtkScrolledWindow *scroll_window = GTK_SCROLLED_WINDOW(m_widget);
            GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT(m_widget)->klass );

#ifdef NEW_GTK_SCROLL_CODE
            GtkWidget *viewport = scroll_window->child;
#else
            GtkWidget *viewport = scroll_window->viewport;
#endif

            GtkStyleClass *viewport_class = viewport->style->klass;

            GtkWidget *hscrollbar = scroll_window->hscrollbar;
            GtkWidget *vscrollbar = scroll_window->vscrollbar;

            if ((m_windowStyle & wxRAISED_BORDER) ||
                (m_windowStyle & wxSUNKEN_BORDER))
            {
                dw += 2 * viewport_class->xthickness;
                dh += 2 * viewport_class->ythickness;
            }

            if (scroll_window->vscrollbar_visible)
            {
                dw += vscrollbar->allocation.width;
                dw += scroll_class->scrollbar_spacing;
            }

            if (scroll_window->hscrollbar_visible)
            {
                dh += hscrollbar->allocation.height;
                dw += scroll_class->scrollbar_spacing;
            }
       }

      SetSize( width+dw, height+dh );
    }
}

void wxWindow::GetClientSize( int *width, int *height ) const
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (!m_wxwindow)
    {
        if (width) (*width) = m_width;
        if (height) (*height) = m_height;
    }
    else
    {
        int dw = 0;
        int dh = 0;

        if (!m_hasScrolling)
        {
            GtkStyleClass *window_class = m_wxwindow->style->klass;

            if ((m_windowStyle & wxRAISED_BORDER) ||
                (m_windowStyle & wxSUNKEN_BORDER))
            {
                dw += 2 * window_class->xthickness;
                dh += 2 * window_class->ythickness;
            }
        }
        else
        {
            GtkScrolledWindow *scroll_window = GTK_SCROLLED_WINDOW(m_widget);
            GtkScrolledWindowClass *scroll_class = GTK_SCROLLED_WINDOW_CLASS( GTK_OBJECT(m_widget)->klass );

#ifdef NEW_GTK_SCROLL_CODE
            GtkWidget *viewport = scroll_window->child;
#else
            GtkWidget *viewport = scroll_window->viewport;
#endif

            GtkStyleClass *viewport_class = viewport->style->klass;

            if ((m_windowStyle & wxRAISED_BORDER) ||
                (m_windowStyle & wxSUNKEN_BORDER))
            {
                dw += 2 * viewport_class->xthickness;
                dh += 2 * viewport_class->ythickness;
            }

            if (scroll_window->vscrollbar_visible)
            {
//              dw += vscrollbar->allocation.width;
                dw += 15;                               // range.slider_width = 11 + 2*2pts edge
                dw += scroll_class->scrollbar_spacing;
            }

            if (scroll_window->hscrollbar_visible)
            {
//              dh += hscrollbar->allocation.height;
                dh += 15;
                dh += scroll_class->scrollbar_spacing;
            }
        }

        if (width) (*width) = m_width - dw;
        if (height) (*height) = m_height - dh;
    }
}

void wxWindow::GetPosition( int *x, int *y ) const
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (x) (*x) = m_x;
    if (y) (*y) = m_y;
}

void wxWindow::ClientToScreen( int *x, int *y )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    GdkWindow *source = (GdkWindow *) NULL;
    if (m_wxwindow)
        source = m_wxwindow->window;
    else
        source = m_widget->window;

    int org_x = 0;
    int org_y = 0;
    gdk_window_get_origin( source, &org_x, &org_y );

    if (!m_wxwindow)
    {
        if (GTK_WIDGET_NO_WINDOW (m_widget))
        {
            org_x += m_widget->allocation.x;
            org_y += m_widget->allocation.y;
        }
    }

    wxPoint pt(GetClientAreaOrigin());
    org_x += pt.x;
    org_y += pt.y;

    if (x) *x += org_x;
    if (y) *y += org_y;
}

void wxWindow::ScreenToClient( int *x, int *y )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    GdkWindow *source = (GdkWindow *) NULL;
    if (m_wxwindow)
        source = m_wxwindow->window;
    else
        source = m_widget->window;

    int org_x = 0;
    int org_y = 0;
    gdk_window_get_origin( source, &org_x, &org_y );

    if (!m_wxwindow)
    {
        if (GTK_WIDGET_NO_WINDOW (m_widget))
        {
            org_x += m_widget->allocation.x;
            org_y += m_widget->allocation.y;
        }
    }

    wxPoint pt(GetClientAreaOrigin());
    org_x -= pt.x;
    org_y -= pt.y;

    if (x) *x -= org_x;
    if (y) *y -= org_y;
}

void wxWindow::Centre( int direction )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    int x = m_x;
    int y = m_y;

    if (m_parent)
    {
        int p_w = 0;
        int p_h = 0;
        m_parent->GetSize( &p_w, &p_h );
        if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (p_w - m_width) / 2;
        if (direction & wxVERTICAL == wxVERTICAL) y = (p_h - m_height) / 2;
    }
    else
    {
        if (direction & wxHORIZONTAL == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
        if (direction & wxVERTICAL == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
    }

    Move( x, y );
}

void wxWindow::Fit()
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    int maxX = 0;
    int maxY = 0;
    wxNode *node = m_children.First();
    while (node)
    {
        wxWindow *win = (wxWindow *)node->Data();
        int wx, wy, ww, wh;
        win->GetPosition(&wx, &wy);
        win->GetSize(&ww, &wh);
        if (wx + ww > maxX) maxX = wx + ww;
        if (wy + wh > maxY) maxY = wy + wh;

        node = node->Next();
    }

    SetClientSize(maxX + 7, maxY + 14);
}

void wxWindow::SetSizeHints( int minW, int minH, int maxW, int maxH, int WXUNUSED(incW), int WXUNUSED(incH) )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    m_minWidth = minW;
    m_minHeight = minH;
    m_maxWidth = maxW;
    m_maxHeight = maxH;
}

void wxWindow::OnSize( wxSizeEvent &WXUNUSED(event) )
{
//  if (GetAutoLayout()) Layout();
}

bool wxWindow::Show( bool show )
{
    wxCHECK_MSG( (m_widget != NULL), FALSE, "invalid window" );

    if (show)
        gtk_widget_show( m_widget );
    else
        gtk_widget_hide( m_widget );

    m_isShown = show;

    return TRUE;
}

void wxWindow::Enable( bool enable )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    m_isEnabled = enable;

    gtk_widget_set_sensitive( m_widget, enable );
    if (m_wxwindow) gtk_widget_set_sensitive( m_wxwindow, enable );
}

int wxWindow::GetCharHeight() const
{
    wxCHECK_MSG( (m_widget != NULL), 12, "invalid window" );

    wxCHECK_MSG( m_font.Ok(), 12, "invalid font" );

    GdkFont *font = m_font.GetInternalFont( 1.0 );

    return font->ascent + font->descent;
}

int wxWindow::GetCharWidth() const
{
    wxCHECK_MSG( (m_widget != NULL), 8, "invalid window" );

    wxCHECK_MSG( m_font.Ok(), 8, "invalid font" );

    GdkFont *font = m_font.GetInternalFont( 1.0 );

    return gdk_string_width( font, "H" );
}

void wxWindow::GetTextExtent( const wxString& string, int *x, int *y,
  int *descent, int *externalLeading, const wxFont *theFont, bool WXUNUSED(use16) ) const
{
    wxFont fontToUse = m_font;
    if (theFont) fontToUse = *theFont;

    wxCHECK_RET( fontToUse.Ok(), "invalid font" );

    GdkFont *font = fontToUse.GetInternalFont( 1.0 );
    if (x) (*x) = gdk_string_width( font, string );
    if (y) (*y) = font->ascent + font->descent;
    if (descent) (*descent) = font->descent;
    if (externalLeading) (*externalLeading) = 0;  // ??
}

void wxWindow::MakeModal( bool modal )
{
    return;

    // Disable all other windows
    if (this->IsKindOf(CLASSINFO(wxDialog)) || this->IsKindOf(CLASSINFO(wxFrame)))
    {
        wxNode *node = wxTopLevelWindows.First();
        while (node)
        {
            wxWindow *win = (wxWindow *)node->Data();
            if (win != this) win->Enable(!modal);

            node = node->Next();
        }
    }
}

void wxWindow::OnKeyDown( wxKeyEvent &event )
{
    event.SetEventType( wxEVT_CHAR );

    if (!GetEventHandler()->ProcessEvent( event ))
    {
        event.Skip();
    }
}

void wxWindow::SetFocus()
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    GtkWidget *connect_widget = GetConnectWidget();
    if (connect_widget)
    {
        if (GTK_WIDGET_CAN_FOCUS(connect_widget) /*&& !GTK_WIDGET_HAS_FOCUS (connect_widget)*/ )
        {
            gtk_widget_grab_focus (connect_widget);
        }
        else if (GTK_IS_CONTAINER(connect_widget))
        {
            gtk_container_focus( GTK_CONTAINER(connect_widget), GTK_DIR_TAB_FORWARD );
        }
        else
        {
        }
    }
}

wxWindow *wxWindow::FindFocus()
{
    return g_focusWindow;
}

bool wxWindow::AcceptsFocus() const
{
    return IsEnabled() && IsShown() && m_acceptsFocus;
}

bool wxWindow::OnClose()
{
    return TRUE;
}

void wxWindow::AddChild( wxWindow *child )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );
    wxCHECK_RET( (child != NULL), "invalid child" );

    m_children.Append( child );
}

wxWindow *wxWindow::ReParent( wxWindow *newParent )
{
    wxCHECK_MSG( (m_widget != NULL), (wxWindow*) NULL, "invalid window" );

    wxWindow *oldParent = GetParent();

    if (oldParent) oldParent->RemoveChild( this );

    gtk_widget_unparent( m_widget );

    if (newParent)
    {
        newParent->AddChild( this );
        (newParent->m_insertCallback)( newParent, this );
    }

    return oldParent;
}

void wxWindow::RemoveChild( wxWindow *child )
{
    m_children.DeleteObject( child );
    child->m_parent = (wxWindow *) NULL;
}

void wxWindow::SetReturnCode( int retCode )
{
    m_retCode = retCode;
}

int wxWindow::GetReturnCode()
{
    return m_retCode;
}

void wxWindow::Raise()
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (m_widget) gdk_window_raise( m_widget->window );
}

void wxWindow::Lower()
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (m_widget) gdk_window_lower( m_widget->window );
}

wxEvtHandler *wxWindow::GetEventHandler() const
{
    return m_eventHandler;
}

void wxWindow::SetEventHandler( wxEvtHandler *handler )
{
    m_eventHandler = handler;
}

void wxWindow::PushEventHandler(wxEvtHandler *handler)
{
    handler->SetNextHandler(GetEventHandler());
    SetEventHandler(handler);
}

wxEvtHandler *wxWindow::PopEventHandler(bool deleteHandler)
{
    if (GetEventHandler())
    {
        wxEvtHandler *handlerA = GetEventHandler();
        wxEvtHandler *handlerB = handlerA->GetNextHandler();
        handlerA->SetNextHandler((wxEvtHandler *) NULL);
        SetEventHandler(handlerB);
        if (deleteHandler)
        {
            delete handlerA;
            return (wxEvtHandler*) NULL;
        }
        else
            return handlerA;
     }
     else
        return (wxEvtHandler *) NULL;
}

wxValidator *wxWindow::GetValidator()
{
    return m_windowValidator;
}

void wxWindow::SetValidator( const wxValidator& validator )
{
    if (m_windowValidator) delete m_windowValidator;
    m_windowValidator = validator.Clone();
    if (m_windowValidator) m_windowValidator->SetWindow(this);
}

void wxWindow::SetClientObject( wxClientData *data )
{
    if (m_clientObject) delete m_clientObject;
    m_clientObject = data;
}

wxClientData *wxWindow::GetClientObject()
{
    return m_clientObject;
}

void wxWindow::SetClientData( void *data )
{
    m_clientData = data;
}

void *wxWindow::GetClientData()
{
    return m_clientData;
}

bool wxWindow::IsBeingDeleted()
{
    return FALSE;
}

void wxWindow::SetId( wxWindowID id )
{
    m_windowId = id;
}

wxWindowID wxWindow::GetId() const
{
    return m_windowId;
}

void wxWindow::SetCursor( const wxCursor &cursor )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (cursor.Ok())
    {
        if (cursor == *m_cursor) return;
        *m_cursor = cursor;
    }
    else
    {
        *m_cursor = *wxSTANDARD_CURSOR;
    }

    if ((m_widget) && (m_widget->window))
         gdk_window_set_cursor( m_widget->window, m_cursor->GetCursor() );

    if ((m_wxwindow) && (m_wxwindow->window))
         gdk_window_set_cursor( m_wxwindow->window, m_cursor->GetCursor() );
}

void wxWindow::WarpPointer( int WXUNUSED(x), int WXUNUSED(y) )
{
  // TODO
}

void wxWindow::Refresh( bool eraseBackground, const wxRect *rect )
{
    wxCHECK_RET( (m_widget != NULL), "invalid window" );

    if (eraseBackground && m_wxwindow && m_wxwindow->window)
    {
        if (rect)
        {
            gdk_window_clear_area( m_wxwindow->window,
                                   rect->x, rect->y,
                                   rect->width,
                                   rect->height );
        }
        else
        {
            Clear();
        }
    }

    if (!rect)
    {
        if (m_wxwindow)
            gtk_widget_draw( m_wxwindow, (GdkRectangle*) NULL );
        else
            gtk_widget_draw( m_widget, (GdkRectangle*) NULL );
    }
    else
    {
        GdkRectangle gdk_rect;
        gdk_rect.x = rect->x;
        gdk_rect.y = rect->y;
        gdk_rect.width = rect->width;
        gdk_rect.height = rect->height;

        if (m_wxwindow)
            gtk_widget_draw( m_wxwindow, &gdk_rect );
        else
            gtk_widget_draw( m_widget, &gdk_rect );
    }
}

wxRegion wxWindow::GetUpdateRegion() const
{
  return m_updateRegion;
}

bool wxWindow::IsExposed( int x, int y) const
{
    return (m_updateRegion.Contains( x, y ) != wxOutRegion );
}

bool wxWindow::IsExposed( int x, int y, int w, int h ) const
{
    return (m_updateRegion.Contains( x, y, w, h ) != wxOutRegion );
}

bool wxWindow::IsExposed( const wxPoint& pt ) const
{
    return (m_updateRegion.Contains( pt.x, pt.y ) != wxOutRegion );
}

bool wxWindow::IsExposed( const wxRect& rect ) const
{
    return (m_updateRegion.Contains( rect.x, rect.y, rect.width, rect.height ) != wxOutRegion );
}

void wxWindow::Clear()
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    if (m_wxwindow && m_wxwindow->window) gdk_window_clear( m_wxwindow->window );
}

#if wxUSE_TOOLTIPS
void wxWindow::SetToolTip( const wxString &tip )
{
    if (m_toolTip)
    {
        m_toolTip->SetTip( tip );
    }
    else
    {
        SetToolTip( new wxToolTip( tip ) );
    }

    // setting empty tooltip text does not remove the tooltip any more for
    // wxMSW compatibility - use SetToolTip((wxToolTip *)NULL) for this
}

void wxWindow::SetToolTip( wxToolTip *tip )
{
    if (m_toolTip)
    {
        m_toolTip->SetTip( (char*) NULL );
        delete m_toolTip;
    }

    m_toolTip = tip;

    if (m_toolTip)
        m_toolTip->Apply( this );
}

void wxWindow::ApplyToolTip( GtkTooltips *tips, const char *tip )
{
    gtk_tooltips_set_tip( tips, GetConnectWidget(), tip, (gchar*) NULL );
}
#endif // wxUSE_TOOLTIPS

wxColour wxWindow::GetBackgroundColour() const
{
    return m_backgroundColour;
}

void wxWindow::SetBackgroundColour( const wxColour &colour )
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    if (m_backgroundColour == colour) return;

    m_backgroundColour = colour;
    if (!m_backgroundColour.Ok()) return;

    if (m_wxwindow)
    {
        GdkWindow *window = m_wxwindow->window;
        m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
        gdk_window_set_background( window, m_backgroundColour.GetColor() );
        gdk_window_clear( window );
    }

    wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
    if (sysbg.Red() == colour.Red() &&
        sysbg.Green() == colour.Green() &&
        sysbg.Blue() == colour.Blue())
    {
        m_backgroundColour = wxNullColour;
        ApplyWidgetStyle();
        m_backgroundColour = sysbg;
    }
    else
    {
        ApplyWidgetStyle();
    }
}

wxColour wxWindow::GetForegroundColour() const
{
    return m_foregroundColour;
}

void wxWindow::SetForegroundColour( const wxColour &colour )
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    if (m_foregroundColour == colour) return;

    m_foregroundColour = colour;
    if (!m_foregroundColour.Ok()) return;

    wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
    if (sysbg.Red() == colour.Red() &&
        sysbg.Green() == colour.Green() &&
        sysbg.Blue() == colour.Blue())
    {
        m_backgroundColour = wxNullColour;
        ApplyWidgetStyle();
        m_backgroundColour = sysbg;
    }
    else
    {
        ApplyWidgetStyle();
    }
}

GtkStyle *wxWindow::GetWidgetStyle()
{
    if (m_widgetStyle) gtk_style_unref( m_widgetStyle );

    m_widgetStyle =
      gtk_style_copy(
        gtk_widget_get_style( m_widget ) );

    return m_widgetStyle;
}

void wxWindow::SetWidgetStyle()
{
    GtkStyle *style = GetWidgetStyle();

    gdk_font_unref( style->font );
    style->font = gdk_font_ref( m_font.GetInternalFont( 1.0 ) );

    if (m_foregroundColour.Ok())
    {
        m_foregroundColour.CalcPixel( gdk_window_get_colormap( m_widget->window ) );
        style->fg[GTK_STATE_NORMAL] = *m_foregroundColour.GetColor();
        style->fg[GTK_STATE_PRELIGHT] = *m_foregroundColour.GetColor();
        style->fg[GTK_STATE_ACTIVE] = *m_foregroundColour.GetColor();
    }

    if (m_backgroundColour.Ok())
    {
        m_backgroundColour.CalcPixel( gdk_window_get_colormap( m_widget->window ) );
        style->bg[GTK_STATE_NORMAL] = *m_backgroundColour.GetColor();
        style->base[GTK_STATE_NORMAL] = *m_backgroundColour.GetColor();
        style->bg[GTK_STATE_PRELIGHT] = *m_backgroundColour.GetColor();
        style->base[GTK_STATE_PRELIGHT] = *m_backgroundColour.GetColor();
        style->bg[GTK_STATE_ACTIVE] = *m_backgroundColour.GetColor();
        style->base[GTK_STATE_ACTIVE] = *m_backgroundColour.GetColor();
        style->bg[GTK_STATE_INSENSITIVE] = *m_backgroundColour.GetColor();
        style->base[GTK_STATE_INSENSITIVE] = *m_backgroundColour.GetColor();
    }
}

void wxWindow::ApplyWidgetStyle()
{
}

bool wxWindow::Validate()
{
    wxCHECK_MSG( m_widget != NULL, FALSE, "invalid window" );

    wxNode *node = m_children.First();
    while (node)
    {
        wxWindow *child = (wxWindow *)node->Data();
        if (child->GetValidator() && /* child->GetValidator()->Ok() && */ !child->GetValidator()->Validate(this))
        {
            return FALSE;
        }
        node = node->Next();
    }
    return TRUE;
}

bool wxWindow::TransferDataToWindow()
{
    wxCHECK_MSG( m_widget != NULL, FALSE, "invalid window" );

    wxNode *node = m_children.First();
    while (node)
    {
        wxWindow *child = (wxWindow *)node->Data();
        if (child->GetValidator() && /* child->GetValidator()->Ok() && */
            !child->GetValidator()->TransferToWindow() )
        {
            wxMessageBox( _("Application Error"), _("Could not transfer data to window"), wxOK|wxICON_EXCLAMATION );
            return FALSE;
        }
        node = node->Next();
    }
    return TRUE;
}

bool wxWindow::TransferDataFromWindow()
{
    wxCHECK_MSG( m_widget != NULL, FALSE, "invalid window" );

    wxNode *node = m_children.First();
    while (node)
    {
        wxWindow *child = (wxWindow *)node->Data();
        if ( child->GetValidator() && /* child->GetValidator()->Ok() && */ !child->GetValidator()->TransferFromWindow() )
        {
            return FALSE;
        }
        node = node->Next();
    }
    return TRUE;
}

void wxWindow::SetAcceleratorTable( const wxAcceleratorTable& accel )
{
    m_acceleratorTable = accel;
}

void wxWindow::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) )
{
    TransferDataToWindow();
}

void wxWindow::InitDialog()
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    wxInitDialogEvent event(GetId());
    event.SetEventObject( this );
    GetEventHandler()->ProcessEvent(event);
}

static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
{
    menu->SetInvokingWindow( win );
    wxNode *node = menu->m_items.First();
    while (node)
    {
        wxMenuItem *menuitem = (wxMenuItem*)node->Data();
        if (menuitem->IsSubMenu())
        {
            SetInvokingWindow( menuitem->GetSubMenu(), win );
        }
        node = node->Next();
    }
}

static gint gs_pop_x = 0;
static gint gs_pop_y = 0;

static void pop_pos_callback( GtkMenu *menu, gint *x, gint *y, wxWindow *win )
{
    win->ClientToScreen( &gs_pop_x, &gs_pop_y );
    *x = gs_pop_x;
    *y = gs_pop_y;
}

bool wxWindow::PopupMenu( wxMenu *menu, int x, int y )
{
    wxCHECK_MSG( m_widget != NULL, FALSE, "invalid window" );

    wxCHECK_MSG( menu != NULL, FALSE, "invalid popup-menu" );

    SetInvokingWindow( menu, this );

    gs_pop_x = x;
    gs_pop_y = y;

    gtk_menu_popup(
                  GTK_MENU(menu->m_menu),
                  (GtkWidget *) NULL,          // parent menu shell
                  (GtkWidget *) NULL,          // parent menu item
                  (GtkMenuPositionFunc) pop_pos_callback,
                  (gpointer) this,             // client data
                  0,                           // button used to activate it
                  0 //gs_timeLastClick         // the time of activation
                );
    return TRUE;
}

#if wxUSE_DRAG_AND_DROP

void wxWindow::SetDropTarget( wxDropTarget *dropTarget )
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    GtkWidget *dnd_widget = GetConnectWidget();

    if (m_dropTarget) m_dropTarget->UnregisterWidget( dnd_widget );

    if (m_dropTarget) delete m_dropTarget;
    m_dropTarget = dropTarget;

    if (m_dropTarget) m_dropTarget->RegisterWidget( dnd_widget );
}

wxDropTarget *wxWindow::GetDropTarget() const
{
    return m_dropTarget;
}

#endif

GtkWidget* wxWindow::GetConnectWidget()
{
    GtkWidget *connect_widget = m_widget;
    if (m_wxwindow) connect_widget = m_wxwindow;

    return connect_widget;
}

bool wxWindow::IsOwnGtkWindow( GdkWindow *window )
{
    if (m_wxwindow) return (window == m_wxwindow->window);
    return (window == m_widget->window);
}

void wxWindow::SetFont( const wxFont &font )
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    if (((wxFont*)&font)->Ok())
        m_font = font;
    else
        m_font = *wxSWISS_FONT;

    wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE );
    if (sysbg.Red() == m_backgroundColour.Red() &&
        sysbg.Green() == m_backgroundColour.Green() &&
        sysbg.Blue() == m_backgroundColour.Blue())
    {
        m_backgroundColour = wxNullColour;
        ApplyWidgetStyle();
        m_backgroundColour = sysbg;
    }
    else
    {
        ApplyWidgetStyle();
    }
}

void wxWindow::SetWindowStyleFlag( long flag )
{
    m_windowStyle = flag;
}

long wxWindow::GetWindowStyleFlag() const
{
    return m_windowStyle;
}

void wxWindow::CaptureMouse()
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    wxCHECK_RET( g_capturing == FALSE, "CaptureMouse called twice" );

    GtkWidget *connect_widget = GetConnectWidget();
    gtk_grab_add( connect_widget );
    gdk_pointer_grab( connect_widget->window, FALSE,
                      (GdkEventMask)
                         (GDK_BUTTON_PRESS_MASK |
                          GDK_BUTTON_RELEASE_MASK |
                          GDK_POINTER_MOTION_MASK),
                      (GdkWindow *) NULL,
                      (GdkCursor *) NULL,
                      GDK_CURRENT_TIME );
    g_capturing = TRUE;
}

void wxWindow::ReleaseMouse()
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    wxCHECK_RET( g_capturing == TRUE, "ReleaseMouse called twice" );

    GtkWidget *connect_widget = GetConnectWidget();
    gtk_grab_remove( connect_widget );
    gdk_pointer_ungrab ( GDK_CURRENT_TIME );
    g_capturing = FALSE;
}

void wxWindow::SetTitle( const wxString &WXUNUSED(title) )
{
}

wxString wxWindow::GetTitle() const
{
    return (wxString&)m_windowName;
}

wxString wxWindow::GetLabel() const
{
    return GetTitle();
}

void wxWindow::SetName( const wxString &name )
{
    m_windowName = name;
}

wxString wxWindow::GetName() const
{
    return (wxString&)m_windowName;
}

bool wxWindow::IsShown() const
{
    return m_isShown;
}

bool wxWindow::IsRetained()
{
    return FALSE;
}

wxWindow *wxWindow::FindWindow( long id )
{
    if (id == m_windowId) return this;
    wxNode *node = m_children.First();
    while (node)
    {
        wxWindow *child = (wxWindow*)node->Data();
        wxWindow *res = child->FindWindow( id );
        if (res) return res;
        node = node->Next();
    }
    return (wxWindow *) NULL;
}

wxWindow *wxWindow::FindWindow( const wxString& name )
{
    if (name == m_windowName) return this;
    wxNode *node = m_children.First();
    while (node)
    {
        wxWindow *child = (wxWindow*)node->Data();
        wxWindow *res = child->FindWindow( name );
        if (res) return res;
        node = node->Next();
    }
    return (wxWindow *) NULL;
}

void wxWindow::SetScrollbar( int orient, int pos, int thumbVisible,
      int range, bool refresh )
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    wxCHECK_RET( m_wxwindow != NULL, "window needs client area for scrolling" );

    m_hasScrolling = TRUE;

    if (orient == wxHORIZONTAL)
    {
        float fpos = (float)pos;
        float frange = (float)range;
        float fthumb = (float)thumbVisible;
        if (fpos > frange-fthumb) fpos = frange-fthumb;
        if (fpos < 0.0) fpos = 0.0;

        if ((fabs(frange-m_hAdjust->upper) < 0.2) &&
            (fabs(fthumb-m_hAdjust->page_size) < 0.2))
        {
            SetScrollPos( orient, pos, refresh );
            return;
        }

        m_oldHorizontalPos = fpos;

        m_hAdjust->lower = 0.0;
        m_hAdjust->upper = frange;
        m_hAdjust->value = fpos;
        m_hAdjust->step_increment = 1.0;
        m_hAdjust->page_increment = (float)(wxMax(fthumb,0));
        m_hAdjust->page_size = fthumb;
    }
    else
    {
        float fpos = (float)pos;
        float frange = (float)range;
        float fthumb = (float)thumbVisible;
        if (fpos > frange-fthumb) fpos = frange-fthumb;
        if (fpos < 0.0) fpos = 0.0;

        if ((fabs(frange-m_vAdjust->upper) < 0.2) &&
            (fabs(fthumb-m_vAdjust->page_size) < 0.2))
        {
            SetScrollPos( orient, pos, refresh );
            return;
        }

        m_oldVerticalPos = fpos;

        m_vAdjust->lower = 0.0;
        m_vAdjust->upper = frange;
        m_vAdjust->value = fpos;
        m_vAdjust->step_increment = 1.0;
        m_vAdjust->page_increment = (float)(wxMax(fthumb,0));
        m_vAdjust->page_size = fthumb;
    }

    if (m_wxwindow->window)
    {
        if (orient == wxHORIZONTAL)
            gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
        else
            gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" );

        gtk_widget_set_usize( m_widget, m_width, m_height );
    }
}

void wxWindow::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) )
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    wxCHECK_RET( m_wxwindow != NULL, "window needs client area for scrolling" );

    if (orient == wxHORIZONTAL)
    {
        float fpos = (float)pos;
        if (fpos > m_hAdjust->upper - m_hAdjust->page_size) fpos = m_hAdjust->upper - m_hAdjust->page_size;
        if (fpos < 0.0) fpos = 0.0;
        m_oldHorizontalPos = fpos;

        if (fabs(fpos-m_hAdjust->value) < 0.2) return;
        m_hAdjust->value = fpos;
    }
    else
    {
        float fpos = (float)pos;
        if (fpos > m_vAdjust->upper - m_vAdjust->page_size) fpos = m_vAdjust->upper - m_vAdjust->page_size;
        if (fpos < 0.0) fpos = 0.0;
        m_oldVerticalPos = fpos;

        if (fabs(fpos-m_vAdjust->value) < 0.2) return;
        m_vAdjust->value = fpos;
    }

    if (!m_isScrolling)
    {
        if (m_wxwindow->window)
        {
            if (orient == wxHORIZONTAL)
                gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" );
            else
                gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );
        }
    }
}

int wxWindow::GetScrollThumb( int orient ) const
{
    wxCHECK_MSG( m_widget != NULL, 0, "invalid window" );

    wxCHECK_MSG( m_wxwindow != NULL, 0, "window needs client area for scrolling" );

    if (orient == wxHORIZONTAL)
        return (int)(m_hAdjust->page_size+0.5);
    else
        return (int)(m_vAdjust->page_size+0.5);
}

int wxWindow::GetScrollPos( int orient ) const
{
    wxCHECK_MSG( m_widget != NULL, 0, "invalid window" );

    wxCHECK_MSG( m_wxwindow != NULL, 0, "window needs client area for scrolling" );

    if (orient == wxHORIZONTAL)
        return (int)(m_hAdjust->value+0.5);
    else
        return (int)(m_vAdjust->value+0.5);
}

int wxWindow::GetScrollRange( int orient ) const
{
    wxCHECK_MSG( m_widget != NULL, 0, "invalid window" );

    wxCHECK_MSG( m_wxwindow != NULL, 0, "window needs client area for scrolling" );

    if (orient == wxHORIZONTAL)
        return (int)(m_hAdjust->upper+0.5);
    else
        return (int)(m_vAdjust->upper+0.5);
}

void wxWindow::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
{
    wxCHECK_RET( m_widget != NULL, "invalid window" );

    wxCHECK_RET( m_wxwindow != NULL, "window needs client area for scrolling" );

    int cw = 0;
    int ch = 0;
    GetClientSize( &cw, &ch );

    int w = cw - abs(dx);
    int h = ch - abs(dy);
    if ((h < 0) || (w < 0))
    {
        Refresh();
        return;
    }
    int s_x = 0;
    int s_y = 0;
    if (dx < 0) s_x = -dx;
    if (dy < 0) s_y = -dy;
    int d_x = 0;
    int d_y = 0;
    if (dx > 0) d_x = dx;
    if (dy > 0) d_y = dy;

    if (!m_scrollGC)
    {
        m_scrollGC = gdk_gc_new( m_wxwindow->window );
        gdk_gc_set_exposures( m_scrollGC, TRUE );
    }

    gdk_window_copy_area( m_wxwindow->window, m_scrollGC, d_x, d_y,
        m_wxwindow->window, s_x, s_y, w, h );

    wxRect rect;
    if (dx < 0) rect.x = cw+dx; else rect.x = 0;
    if (dy < 0) rect.y = ch+dy; else rect.y = 0;
    if (dy != 0) rect.width = cw; else rect.width = abs(dx);
    if (dx != 0) rect.height = ch; else rect.height = abs(dy);

    Refresh( TRUE, &rect );
}

//-------------------------------------------------------------------------------------
//          Layout
//-------------------------------------------------------------------------------------

wxLayoutConstraints *wxWindow::GetConstraints() const
{
  return m_constraints;
}

void wxWindow::SetConstraints( wxLayoutConstraints *constraints )
{
  if (m_constraints)
  {
    UnsetConstraints(m_constraints);
    delete m_constraints;
  }
  m_constraints = constraints;
  if (m_constraints)
  {
    // Make sure other windows know they're part of a 'meaningful relationship'
    if (m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this))
      m_constraints->left.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
    if (m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this))
      m_constraints->top.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
    if (m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this))
      m_constraints->right.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
    if (m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this))
      m_constraints->bottom.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
    if (m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this))
      m_constraints->width.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
    if (m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this))
      m_constraints->height.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
    if (m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this))
      m_constraints->centreX.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
    if (m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this))
      m_constraints->centreY.GetOtherWindow()->AddConstraintReference((wxWindow *)this);
  }
;
}
;

void wxWindow::SetAutoLayout( bool autoLayout )
{
  m_autoLayout = autoLayout;
}

bool wxWindow::GetAutoLayout() const
{
  return m_autoLayout;
}

wxSizer *wxWindow::GetSizer() const
{
  return m_windowSizer;
}

void wxWindow::SetSizerParent( wxWindow *win )
{
  m_sizerParent = win;
}

wxWindow *wxWindow::GetSizerParent() const
{
  return m_sizerParent;
}

// This removes any dangling pointers to this window
// in other windows' constraintsInvolvedIn lists.
void wxWindow::UnsetConstraints(wxLayoutConstraints *c)
{
  if (c)
  {
    if (c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this))
      c->left.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
    if (c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this))
      c->top.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
    if (c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this))
      c->right.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
    if (c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this))
      c->bottom.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
    if (c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this))
      c->width.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
    if (c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this))
      c->height.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
    if (c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this))
      c->centreX.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
    if (c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this))
      c->centreY.GetOtherWindow()->RemoveConstraintReference((wxWindow *)this);
  }
}

// Back-pointer to other windows we're involved with, so if we delete
// this window, we must delete any constraints we're involved with.
void wxWindow::AddConstraintReference(wxWindow *otherWin)
{
  if (!m_constraintsInvolvedIn)
    m_constraintsInvolvedIn = new wxList;
  if (!m_constraintsInvolvedIn->Member(otherWin))
    m_constraintsInvolvedIn->Append(otherWin);
}

// REMOVE back-pointer to other windows we're involved with.
void wxWindow::RemoveConstraintReference(wxWindow *otherWin)
{
  if (m_constraintsInvolvedIn)
    m_constraintsInvolvedIn->DeleteObject(otherWin);
}

// Reset any constraints that mention this window
void wxWindow::DeleteRelatedConstraints()
{
  if (m_constraintsInvolvedIn)
  {
    wxNode *node = m_constraintsInvolvedIn->First();
    while (node)
    {
      wxWindow *win = (wxWindow *)node->Data();
      wxNode *next = node->Next();
      wxLayoutConstraints *constr = win->GetConstraints();

      // Reset any constraints involving this window
      if (constr)
      {
        constr->left.ResetIfWin((wxWindow *)this);
        constr->top.ResetIfWin((wxWindow *)this);
        constr->right.ResetIfWin((wxWindow *)this);
        constr->bottom.ResetIfWin((wxWindow *)this);
        constr->width.ResetIfWin((wxWindow *)this);
        constr->height.ResetIfWin((wxWindow *)this);
        constr->centreX.ResetIfWin((wxWindow *)this);
        constr->centreY.ResetIfWin((wxWindow *)this);
      }
      delete node;
      node = next;
    }
    delete m_constraintsInvolvedIn;
    m_constraintsInvolvedIn = (wxList *) NULL;
  }
}

void wxWindow::SetSizer(wxSizer *sizer)
{
  m_windowSizer = sizer;
  if (sizer)
    sizer->SetSizerParent((wxWindow *)this);
}

/*
 * New version
 */

bool wxWindow::Layout()
{
  if (GetConstraints())
  {
    int w, h;
    GetClientSize(&w, &h);
    GetConstraints()->width.SetValue(w);
    GetConstraints()->height.SetValue(h);
  }

  // If top level (one sizer), evaluate the sizer's constraints.
  if (GetSizer())
  {
    int noChanges;
    GetSizer()->ResetConstraints();   // Mark all constraints as unevaluated
    GetSizer()->LayoutPhase1(&noChanges);
    GetSizer()->LayoutPhase2(&noChanges);
    GetSizer()->SetConstraintSizes(); // Recursively set the real window sizes
    return TRUE;
  }
  else
  {
    // Otherwise, evaluate child constraints
    ResetConstraints();   // Mark all constraints as unevaluated
    DoPhase(1);           // Just one phase need if no sizers involved
    DoPhase(2);
    SetConstraintSizes(); // Recursively set the real window sizes
  }
  return TRUE;
}


// Do a phase of evaluating constraints:
// the default behaviour. wxSizers may do a similar
// thing, but also impose their own 'constraints'
// and order the evaluation differently.
bool wxWindow::LayoutPhase1(int *noChanges)
{
  wxLayoutConstraints *constr = GetConstraints();
  if (constr)
  {
    return constr->SatisfyConstraints((wxWindow *)this, noChanges);
  }
  else
    return TRUE;
}

bool wxWindow::LayoutPhase2(int *noChanges)
{
  *noChanges = 0;

  // Layout children
  DoPhase(1);
  DoPhase(2);
  return TRUE;
}

// Do a phase of evaluating child constraints
bool wxWindow::DoPhase(int phase)
{
  int noIterations = 0;
  int maxIterations = 500;
  int noChanges = 1;
  int noFailures = 0;
  wxList succeeded;
  while ((noChanges > 0) && (noIterations < maxIterations))
  {
    noChanges = 0;
    noFailures = 0;
    wxNode *node = m_children.First();
    while (node)
    {
      wxWindow *child = (wxWindow *)node->Data();
      if (!child->IsKindOf(CLASSINFO(wxFrame)) && !child->IsKindOf(CLASSINFO(wxDialog)))
      {
        wxLayoutConstraints *constr = child->GetConstraints();
        if (constr)
        {
          if (succeeded.Member(child))
          {
          }
          else
          {
            int tempNoChanges = 0;
            bool success = ( (phase == 1) ? child->LayoutPhase1(&tempNoChanges) : child->LayoutPhase2(&tempNoChanges) ) ;
            noChanges += tempNoChanges;
            if (success)
            {
              succeeded.Append(child);
            }
          }
        }
      }
      node = node->Next();
    }
    noIterations ++;
  }
  return TRUE;
}

void wxWindow::ResetConstraints()
{
  wxLayoutConstraints *constr = GetConstraints();
  if (constr)
  {
    constr->left.SetDone(FALSE);
    constr->top.SetDone(FALSE);
    constr->right.SetDone(FALSE);
    constr->bottom.SetDone(FALSE);
    constr->width.SetDone(FALSE);
    constr->height.SetDone(FALSE);
    constr->centreX.SetDone(FALSE);
    constr->centreY.SetDone(FALSE);
  }
  wxNode *node = m_children.First();
  while (node)
  {
    wxWindow *win = (wxWindow *)node->Data();
    if (!win->IsKindOf(CLASSINFO(wxFrame)) && !win->IsKindOf(CLASSINFO(wxDialog)))
      win->ResetConstraints();
    node = node->Next();
  }
}

// Need to distinguish between setting the 'fake' size for
// windows and sizers, and setting the real values.
void wxWindow::SetConstraintSizes(bool recurse)
{
  wxLayoutConstraints *constr = GetConstraints();
  if (constr && constr->left.GetDone() && constr->right.GetDone() &&
                constr->width.GetDone() && constr->height.GetDone())
  {
    int x = constr->left.GetValue();
    int y = constr->top.GetValue();
    int w = constr->width.GetValue();
    int h = constr->height.GetValue();

    // If we don't want to resize this window, just move it...
    if ((constr->width.GetRelationship() != wxAsIs) ||
        (constr->height.GetRelationship() != wxAsIs))
    {
      // Calls Layout() recursively. AAAGH. How can we stop that.
      // Simply take Layout() out of non-top level OnSizes.
      SizerSetSize(x, y, w, h);
    }
    else
    {
      SizerMove(x, y);
    }
  }
  else if (constr)
  {
    char *windowClass = this->GetClassInfo()->GetClassName();

    wxString winName;
  if (GetName() == "")
    winName = "unnamed";
  else
    winName = GetName();
    wxLogDebug( "Constraint(s) not satisfied for window of type %s, name %s:\n",
                (const char *)windowClass,
                (const char *)winName);
    if (!constr->left.GetDone()) wxLogDebug( "  unsatisfied 'left' constraint.\n" );
    if (!constr->right.GetDone()) wxLogDebug( "  unsatisfied 'right' constraint.\n" );
    if (!constr->width.GetDone()) wxLogDebug( "  unsatisfied 'width' constraint.\n" );
    if (!constr->height.GetDone())  wxLogDebug( "  unsatisfied 'height' constraint.\n" );
    wxLogDebug( "Please check constraints: try adding AsIs() constraints.\n" );
  }

  if (recurse)
  {
    wxNode *node = m_children.First();
    while (node)
    {
      wxWindow *win = (wxWindow *)node->Data();
      if (!win->IsKindOf(CLASSINFO(wxFrame)) && !win->IsKindOf(CLASSINFO(wxDialog)))
        win->SetConstraintSizes();
      node = node->Next();
    }
  }
}

// This assumes that all sizers are 'on' the same
// window, i.e. the parent of this window.
void wxWindow::TransformSizerToActual(int *x, int *y) const
{
  if (!m_sizerParent || m_sizerParent->IsKindOf(CLASSINFO(wxDialog)) ||
         m_sizerParent->IsKindOf(CLASSINFO(wxFrame)) )
    return;

  int xp, yp;
  m_sizerParent->GetPosition(&xp, &yp);
  m_sizerParent->TransformSizerToActual(&xp, &yp);
  *x += xp;
  *y += yp;
}

void wxWindow::SizerSetSize(int x, int y, int w, int h)
{
  int xx = x;
  int yy = y;
  TransformSizerToActual(&xx, &yy);
  SetSize(xx, yy, w, h);
}

void wxWindow::SizerMove(int x, int y)
{
  int xx = x;
  int yy = y;
  TransformSizerToActual(&xx, &yy);
  Move(xx, yy);
}

// Only set the size/position of the constraint (if any)
void wxWindow::SetSizeConstraint(int x, int y, int w, int h)
{
  wxLayoutConstraints *constr = GetConstraints();
  if (constr)
  {
    if (x != -1)
    {
      constr->left.SetValue(x);
      constr->left.SetDone(TRUE);
    }
    if (y != -1)
    {
      constr->top.SetValue(y);
      constr->top.SetDone(TRUE);
    }
    if (w != -1)
    {
      constr->width.SetValue(w);
      constr->width.SetDone(TRUE);
    }
    if (h != -1)
    {
      constr->height.SetValue(h);
      constr->height.SetDone(TRUE);
    }
  }
}

void wxWindow::MoveConstraint(int x, int y)
{
  wxLayoutConstraints *constr = GetConstraints();
  if (constr)
  {
    if (x != -1)
    {
      constr->left.SetValue(x);
      constr->left.SetDone(TRUE);
    }
    if (y != -1)
    {
      constr->top.SetValue(y);
      constr->top.SetDone(TRUE);
    }
  }
}

void wxWindow::GetSizeConstraint(int *w, int *h) const
{
  wxLayoutConstraints *constr = GetConstraints();
  if (constr)
  {
    *w = constr->width.GetValue();
    *h = constr->height.GetValue();
  }
  else
    GetSize(w, h);
}

void wxWindow::GetClientSizeConstraint(int *w, int *h) const
{
  wxLayoutConstraints *constr = GetConstraints();
  if (constr)
  {
    *w = constr->width.GetValue();
    *h = constr->height.GetValue();
  }
  else
    GetClientSize(w, h);
}

void wxWindow::GetPositionConstraint(int *x, int *y) const
{
 wxLayoutConstraints *constr = GetConstraints();
    if (constr)
  {
    *x = constr->left.GetValue();
    *y = constr->top.GetValue();
  }
  else
    GetPosition(x, y);
}