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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 <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <basegfx/utils/canvastools.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <canvas/canvastools.hxx>
#include "implcanvas.hxx"
using namespace ::com::sun::star;
namespace cppcanvas::internal
{
ImplCanvas::ImplCanvas( const uno::Reference< rendering::XCanvas >& xCanvas ) :
maViewState(),
maClipPolyPolygon(),
mxCanvas( xCanvas )
{
OSL_ENSURE( mxCanvas.is(), "Canvas::Canvas() invalid XCanvas" );
::canvas::tools::initViewState( maViewState );
}
ImplCanvas::~ImplCanvas()
{
}
void ImplCanvas::setTransformation( const ::basegfx::B2DHomMatrix& rMatrix )
{
::canvas::tools::setViewStateTransform( maViewState, rMatrix );
}
::basegfx::B2DHomMatrix ImplCanvas::getTransformation() const
{
::basegfx::B2DHomMatrix aMatrix;
return ::canvas::tools::getViewStateTransform( aMatrix,
maViewState );
}
void ImplCanvas::setClip( const ::basegfx::B2DPolyPolygon& rClipPoly )
{
// TODO(T3): not thread-safe. B2DPolyPolygon employs copy-on-write
maClipPolyPolygon = rClipPoly;
maViewState.Clip.clear();
}
void ImplCanvas::setClip()
{
maClipPolyPolygon.reset();
maViewState.Clip.clear();
}
::basegfx::B2DPolyPolygon const* ImplCanvas::getClip() const
{
return !maClipPolyPolygon ? nullptr : &(*maClipPolyPolygon);
}
CanvasSharedPtr ImplCanvas::clone() const
{
return std::make_shared<ImplCanvas>( *this );
}
void ImplCanvas::clear() const
{
OSL_ENSURE( mxCanvas.is(), "ImplCanvas::clear(): Invalid XCanvas" );
mxCanvas->clear();
}
uno::Reference< rendering::XCanvas > ImplCanvas::getUNOCanvas() const
{
OSL_ENSURE( mxCanvas.is(), "ImplCanvas::getUNOCanvas(): Invalid XCanvas" );
return mxCanvas;
}
rendering::ViewState ImplCanvas::getViewState() const
{
if( maClipPolyPolygon && !maViewState.Clip.is() )
{
if( !mxCanvas.is() )
return maViewState;
maViewState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
mxCanvas->getDevice(),
*maClipPolyPolygon );
}
return maViewState;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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