fixed a 'variable could be used uninitialized' warning

[wxWidgets.git] / src / mac / dcclient.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        dcclient.cpp
// Purpose:     wxClientDC class
// Author:      Stefan Csomor
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Stefan Csomor
// Licence:       wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#include "wx/dcclient.h"
#include "wx/dcmemory.h"
#include "wx/region.h"
#include "wx/window.h"
#include "wx/toplevel.h"
#include <math.h>
#include "wx/mac/private.h"

//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------

#define RAD2DEG 57.2957795131

//-----------------------------------------------------------------------------
// wxPaintDC
//-----------------------------------------------------------------------------

#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC)
#endif

/*
 * wxWindowDC
 */

#include "wx/mac/uma.h"

wxWindowDC::wxWindowDC() 
{
    m_window = NULL ;
}

wxWindowDC::wxWindowDC(wxWindow *window) 
{
    m_window = window ;
    wxTopLevelWindowMac* rootwindow = window->MacGetTopLevelWindow() ;
    WindowRef windowref = (WindowRef) rootwindow->MacGetWindowRef() ;
    
    int x , y ;
    x = y = 0 ;
    window->MacWindowToRootWindow( &x , &y ) ;
    m_macLocalOrigin.x = x ;
    m_macLocalOrigin.y = y ;
    CopyRgn( (RgnHandle) window->MacGetVisibleRegion().GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
    CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
    m_macPort = UMAGetWindowPort( windowref ) ;
    m_ok = TRUE ;
    SetBackground(window->MacGetBackgroundBrush());
}

wxWindowDC::~wxWindowDC()
{
}

void wxWindowDC::DoGetSize( int* width, int* height ) const
{
    wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") );

    m_window->GetSize(width, height);
}

/*
 * wxClientDC
 */

wxClientDC::wxClientDC()
{
    m_window = NULL ;
}

wxClientDC::wxClientDC(wxWindow *window)
{
    m_window = window ;
    wxTopLevelWindowMac* rootwindow = window->MacGetTopLevelWindow() ;
    if (!rootwindow)
        return;
    WindowRef windowref = (WindowRef) rootwindow->MacGetWindowRef() ;
    wxPoint origin = window->GetClientAreaOrigin() ;
    wxSize size = window->GetClientSize() ;
    int x , y ;
    x = origin.x ;
    y = origin.y ;
    window->MacWindowToRootWindow( &x , &y ) ;
    m_macLocalOrigin.x = x ;
    m_macLocalOrigin.y = y ;
    SetRectRgn( (RgnHandle) m_macBoundaryClipRgn , origin.x , origin.y , origin.x + size.x , origin.y + size.y ) ;
    SectRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) window->MacGetVisibleRegion().GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , -origin.x , -origin.y ) ;
    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
    CopyRgn( (RgnHandle) m_macBoundaryClipRgn ,(RgnHandle)  m_macCurrentClipRgn ) ;
    m_macPort = UMAGetWindowPort( windowref ) ;

    m_ok = TRUE ;
    SetBackground(window->MacGetBackgroundBrush());
    SetFont( window->GetFont() ) ;
}

wxClientDC::~wxClientDC()
{
}

void wxClientDC::DoGetSize(int *width, int *height) const
{
    wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") );

    m_window->GetClientSize( width, height );
}


/*
 * wxPaintDC
 */

wxPaintDC::wxPaintDC()
{
    m_window = NULL ;
}

wxPaintDC::wxPaintDC(wxWindow *window)
{
    m_window = window ;
    wxTopLevelWindowMac* rootwindow = window->MacGetTopLevelWindow() ;
    WindowRef windowref = (WindowRef) rootwindow->MacGetWindowRef() ;
    wxPoint origin = window->GetClientAreaOrigin() ;
    wxSize size = window->GetClientSize() ;
    int x , y ;
    x = origin.x ;
    y = origin.y ;
    window->MacWindowToRootWindow( &x , &y ) ;
    m_macLocalOrigin.x = x ;
    m_macLocalOrigin.y = y ;
    SetRectRgn( (RgnHandle) m_macBoundaryClipRgn , origin.x , origin.y , origin.x + size.x , origin.y + size.y ) ;
    SectRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) window->MacGetVisibleRegion().GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , -origin.x , -origin.y ) ;
    SectRgn( (RgnHandle) m_macBoundaryClipRgn  , (RgnHandle) window->GetUpdateRegion().GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
    CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
    m_macPort = UMAGetWindowPort( windowref ) ;

    m_ok = TRUE ;
    SetBackground(window->MacGetBackgroundBrush());
    SetFont( window->GetFont() ) ;
}

wxPaintDC::~wxPaintDC()
{
}

void wxPaintDC::DoGetSize(int *width, int *height) const
{
    wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") );

    m_window->GetClientSize( width, height );
}