xref: /AOO41X/main/cppcanvas/source/mtfrenderer/lineaction.cxx (revision 25b1114295101a2e8c55dab9e4c2ddcafdffc2eb)

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 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_cppcanvas.hxx"

#include <lineaction.hxx>
#include <outdevstate.hxx>

#include <rtl/logfile.hxx>
#include <com/sun/star/rendering/XCanvas.hpp>

#include <tools/gen.hxx>
#include <vcl/canvastools.hxx>

#include <basegfx/range/b2drange.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/tools/canvastools.hxx>
#include <canvas/canvastools.hxx>

#include <boost/utility.hpp>

#include <cppcanvas/canvas.hxx>

#include <mtftools.hxx>


using namespace ::com::sun::star;

namespace cppcanvas
{
    namespace internal
    {
        namespace
        {
            class LineAction : public Action, private ::boost::noncopyable
            {
            public:
                LineAction( const ::basegfx::B2DPoint&,
                            const ::basegfx::B2DPoint&,
                            const CanvasSharedPtr&,
                            const OutDevState& );

                virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const;
                virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation,
                                     const Subset&					rSubset ) const;

                virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const;
                virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix&	rTransformation,
                                                       const Subset&					rSubset ) const;

                virtual sal_Int32 getActionCount() const;

            private:
                ::basegfx::B2DPoint     maStartPoint;
                ::basegfx::B2DPoint     maEndPoint;
                CanvasSharedPtr			mpCanvas;
                rendering::RenderState	maState;
            };

            LineAction::LineAction( const ::basegfx::B2DPoint& rStartPoint,
                                    const ::basegfx::B2DPoint& rEndPoint,
                                    const CanvasSharedPtr&     rCanvas,
                                    const OutDevState&         rState ) :
                maStartPoint( rStartPoint ),
                maEndPoint( rEndPoint ),
                mpCanvas( rCanvas ),
                maState()
            {
                tools::initRenderState(maState,rState);
                maState.DeviceColor = rState.lineColor;
            }

            bool LineAction::render( const ::basegfx::B2DHomMatrix& rTransformation ) const
            {
                RTL_LOGFILE_CONTEXT( aLog, "::cppcanvas::internal::LineAction::render()" );
                RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::cppcanvas::internal::LineAction: 0x%X", 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::render( 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;
            }
        }

        ActionSharedPtr LineActionFactory::createLineAction( const ::basegfx::B2DPoint&	rStartPoint,
                                                             const ::basegfx::B2DPoint&	rEndPoint,
                                                             const CanvasSharedPtr&     rCanvas,
                                                             const OutDevState&         rState	)
        {
            return ActionSharedPtr( new LineAction( rStartPoint,
                                                    rEndPoint,
                                                    rCanvas,
                                                    rState) );
        }

    }
}