office-gobmx/slideshow/source/engine/slidebitmap.cxx

135 lines
4.4 KiB
C++

/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: slidebitmap.cxx,v $
* $Revision: 1.12 $
*
* 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.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_slideshow.hxx"
// must be first
#include <canvas/debug.hxx>
#include <tools/diagnose_ex.h>
#include <slidebitmap.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XBitmap.hpp>
#include <comphelper/anytostring.hxx>
#include <cppuhelper/exc_hlp.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <canvas/canvastools.hxx>
#include <basegfx/tools/canvastools.hxx>
using namespace ::com::sun::star;
namespace slideshow
{
namespace internal
{
SlideBitmap::SlideBitmap( const ::cppcanvas::BitmapSharedPtr& rBitmap ) :
maOutputPos(),
maClipPoly(),
mxBitmap()
{
if( rBitmap )
mxBitmap = rBitmap->getUNOBitmap();
ENSURE_OR_THROW( mxBitmap.is(), "SlideBitmap::SlideBitmap(): Invalid bitmap" );
}
bool SlideBitmap::draw( const ::cppcanvas::CanvasSharedPtr& rCanvas ) const
{
ENSURE_OR_RETURN( rCanvas && rCanvas->getUNOCanvas().is(),
"SlideBitmap::draw(): Invalid canvas" );
// selectively only copy the transformation from current viewstate,
// don't want no clipping here.
rendering::ViewState aViewState;
aViewState.AffineTransform = rCanvas->getViewState().AffineTransform;
rendering::RenderState aRenderState;
::canvas::tools::initRenderState( aRenderState );
const basegfx::B2DHomMatrix aTranslation(basegfx::tools::createTranslateB2DHomMatrix(maOutputPos));
::canvas::tools::setRenderStateTransform( aRenderState, aTranslation );
try
{
if( maClipPoly.count() )
{
// TODO(P1): Buffer the clip polygon
aRenderState.Clip =
::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
rCanvas->getUNOCanvas()->getDevice(),
maClipPoly );
}
rCanvas->getUNOCanvas()->drawBitmap( mxBitmap,
aViewState,
aRenderState );
}
catch( uno::Exception& )
{
OSL_ENSURE( false,
rtl::OUStringToOString(
comphelper::anyToString( cppu::getCaughtException() ),
RTL_TEXTENCODING_UTF8 ).getStr() );
return false;
}
return true;
}
::basegfx::B2ISize SlideBitmap::getSize() const
{
return ::basegfx::unotools::b2ISizeFromIntegerSize2D( mxBitmap->getSize() );
}
void SlideBitmap::move( const ::basegfx::B2DPoint& rNewPos )
{
maOutputPos = rNewPos;
}
void SlideBitmap::clip( const ::basegfx::B2DPolyPolygon& rClipPoly )
{
maClipPoly = rClipPoly;
}
::com::sun::star::uno::Reference<
::com::sun::star::rendering::XBitmap > SlideBitmap::getXBitmap()
{
return mxBitmap;
}
}
}