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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <comphelper/diagnose_ex.hxx>
#include <slidebitmap.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XBitmap.hpp>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <canvas/canvastools.hxx>
#include <basegfx/utils/canvastools.hxx>
using namespace ::com::sun::star;
namespace slideshow::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_FALSE( 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::utils::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& )
{
TOOLS_WARN_EXCEPTION( "slideshow", "" );
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;
}
const css::uno::Reference< css::rendering::XBitmap >& SlideBitmap::getXBitmap() const
{
return mxBitmap;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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