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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 <canvasgraphichelper.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <canvas/canvastools.hxx>
#include <basegfx/utils/canvastools.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
using namespace ::com::sun::star;
/* Implementation of CanvasGraphicHelper class */
namespace cppcanvas::internal
{
CanvasGraphicHelper::CanvasGraphicHelper( const CanvasSharedPtr& rParentCanvas ) :
maClipPolyPolygon(),
mpCanvas( rParentCanvas )
{
OSL_ENSURE( mpCanvas.get() != nullptr &&
mpCanvas->getUNOCanvas().is(),
"CanvasGraphicHelper::CanvasGraphicHelper: no valid canvas" );
::canvas::tools::initRenderState( maRenderState );
}
void CanvasGraphicHelper::setTransformation( const ::basegfx::B2DHomMatrix& rMatrix )
{
::canvas::tools::setRenderStateTransform( maRenderState, rMatrix );
}
void CanvasGraphicHelper::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly )
{
// TODO(T3): not thread-safe. B2DPolyPolygon employs copy-on-write
maClipPolyPolygon = rClipPoly;
maRenderState.Clip.clear();
}
void CanvasGraphicHelper::setClip()
{
maClipPolyPolygon.reset();
maRenderState.Clip.clear();
}
const rendering::RenderState& CanvasGraphicHelper::getRenderState() const
{
if( maClipPolyPolygon && !maRenderState.Clip.is() )
{
uno::Reference< rendering::XCanvas > xCanvas( mpCanvas->getUNOCanvas() );
if( !xCanvas.is() )
return maRenderState;
maRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
xCanvas->getDevice(),
*maClipPolyPolygon );
}
return maRenderState;
}
void CanvasGraphicHelper::setCompositeOp( sal_Int8 aOp )
{
maRenderState.CompositeOperation = aOp;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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