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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _DIBPREVIEW_HXX_
#define _DIBPREVIEW_HXX_
//------------------------------------------------------------------------
// includes
//------------------------------------------------------------------------
#include "previewbase.hxx"
#include <osl/mutex.hxx>
#if defined _MSC_VER
#pragma warning(push, 1)
#endif
#include <windows.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif
//---------------------------------------------
// A very simple wrapper for a window that does
// display DIBs.
// Maybe it would be better and more extensible
// to create another class that is responsible
// for rendering a specific image format into
// the area of the window, but for our purpose
// it's enough to go the simple way - KISS.
//---------------------------------------------
class CDIBPreview : public PreviewBase
{
public:
// ctor
CDIBPreview(HINSTANCE instance,HWND parent,sal_Bool bShowWindow = sal_False);
// dtor
virtual ~CDIBPreview( );
// preview interface implementation
virtual sal_Int32 SAL_CALL getTargetColorDepth()
throw (::com::sun::star::uno::RuntimeException);
virtual sal_Int32 SAL_CALL getAvailableWidth()
throw (::com::sun::star::uno::RuntimeException);
virtual sal_Int32 SAL_CALL getAvailableHeight()
throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL setImage(sal_Int16 aImageFormat, const ::com::sun::star::uno::Any& aImage)
throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException);
virtual sal_Bool SAL_CALL setShowState(sal_Bool bShowState)
throw (::com::sun::star::uno::RuntimeException);
virtual sal_Bool SAL_CALL getShowState()
throw (::com::sun::star::uno::RuntimeException);
virtual HWND SAL_CALL getWindowHandle() const;
private:
virtual void SAL_CALL onPaint( HWND hWnd, HDC hDC );
ATOM SAL_CALL RegisterDibPreviewWindowClass( );
void SAL_CALL UnregisterDibPreviewWindowClass( );
static LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
private:
HINSTANCE m_Instance;
HWND m_Hwnd;
com::sun::star::uno::Sequence<sal_Int8> m_Image;
osl::Mutex m_PaintLock;
// the preview window class has to be registered only
// once per process, so multiple instance of this class
// share the registered window class
static ATOM s_ClassAtom;
static osl::Mutex s_Mutex;
static sal_Int32 s_RegisterDibPreviewWndCount;
// prevent copy and assignment
private:
CDIBPreview(const CDIBPreview&);
CDIBPreview& operator=(const CDIBPreview&);
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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