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Diffstat (limited to 'cppcanvas/source/mtfrenderer/lineaction.cxx')
| -rw-r--r-- | cppcanvas/source/mtfrenderer/lineaction.cxx | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/cppcanvas/source/mtfrenderer/lineaction.cxx b/cppcanvas/source/mtfrenderer/lineaction.cxx new file mode 100644 index 000000000..4bc55d929 --- /dev/null +++ b/cppcanvas/source/mtfrenderer/lineaction.cxx @@ -0,0 +1,154 @@ +/* -*- 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 "lineaction.hxx" +#include <outdevstate.hxx> + +#include <com/sun/star/rendering/XCanvas.hpp> + +#include <basegfx/range/b2drange.hxx> +#include <basegfx/point/b2dpoint.hxx> +#include <basegfx/utils/canvastools.hxx> +#include <canvas/canvastools.hxx> +#include <sal/log.hxx> + +#include <cppcanvas/canvas.hxx> +#include <utility> + +#include "mtftools.hxx" + + +using namespace ::com::sun::star; + +namespace cppcanvas::internal +{ + namespace + { + class LineAction : public Action + { + public: + LineAction( const ::basegfx::B2DPoint&, + const ::basegfx::B2DPoint&, + CanvasSharedPtr, + const OutDevState& ); + + LineAction(const LineAction&) = delete; + const LineAction& operator=(const LineAction&) = delete; + + virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const override; + virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation, + const Subset& rSubset ) const override; + + virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const override; + virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation, + const Subset& rSubset ) const override; + + virtual sal_Int32 getActionCount() const override; + + private: + ::basegfx::B2DPoint maStartPoint; + ::basegfx::B2DPoint maEndPoint; + CanvasSharedPtr mpCanvas; + rendering::RenderState maState; + }; + + LineAction::LineAction( const ::basegfx::B2DPoint& rStartPoint, + const ::basegfx::B2DPoint& rEndPoint, + CanvasSharedPtr xCanvas, + const OutDevState& rState ) : + maStartPoint( rStartPoint ), + maEndPoint( rEndPoint ), + mpCanvas(std::move( xCanvas )) + { + tools::initRenderState(maState,rState); + maState.DeviceColor = rState.lineColor; + } + + bool LineAction::render( const ::basegfx::B2DHomMatrix& rTransformation ) const + { + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::LineAction::render()" ); + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::LineAction: 0x" << std::hex << this ); + + rendering::RenderState aLocalState( maState ); + ::canvas::tools::prependToRenderState(aLocalState, rTransformation); + + mpCanvas->getUNOCanvas()->drawLine( ::basegfx::unotools::point2DFromB2DPoint(maStartPoint), + ::basegfx::unotools::point2DFromB2DPoint(maEndPoint), + mpCanvas->getViewState(), + aLocalState ); + + return true; + } + + bool LineAction::renderSubset( const ::basegfx::B2DHomMatrix& rTransformation, + const Subset& rSubset ) const + { + // line only contains a single action, fail if subset + // requests different range + if( rSubset.mnSubsetBegin != 0 || + rSubset.mnSubsetEnd != 1 ) + return false; + + return render( rTransformation ); + } + + ::basegfx::B2DRange LineAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const + { + rendering::RenderState aLocalState( maState ); + ::canvas::tools::prependToRenderState(aLocalState, rTransformation); + + return tools::calcDevicePixelBounds( ::basegfx::B2DRange( maStartPoint, + maEndPoint ), + mpCanvas->getViewState(), + aLocalState ); + } + + ::basegfx::B2DRange LineAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation, + const Subset& rSubset ) const + { + // line only contains a single action, empty bounds + // if subset requests different range + if( rSubset.mnSubsetBegin != 0 || + rSubset.mnSubsetEnd != 1 ) + return ::basegfx::B2DRange(); + + return getBounds( rTransformation ); + } + + sal_Int32 LineAction::getActionCount() const + { + return 1; + } + } + + std::shared_ptr<Action> LineActionFactory::createLineAction( const ::basegfx::B2DPoint& rStartPoint, + const ::basegfx::B2DPoint& rEndPoint, + const CanvasSharedPtr& rCanvas, + const OutDevState& rState ) + { + return std::make_shared<LineAction>( rStartPoint, + rEndPoint, + rCanvas, + rState); + } + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |