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Diffstat (limited to '')
| -rw-r--r-- | cppcanvas/source/mtfrenderer/bitmapaction.cxx | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/cppcanvas/source/mtfrenderer/bitmapaction.cxx b/cppcanvas/source/mtfrenderer/bitmapaction.cxx new file mode 100644 index 000000000..24e1f46fa --- /dev/null +++ b/cppcanvas/source/mtfrenderer/bitmapaction.cxx @@ -0,0 +1,217 @@ +/* -*- 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 <com/sun/star/rendering/XBitmap.hpp> +#include <com/sun/star/rendering/XCanvas.hpp> +#include <com/sun/star/rendering/XCachedPrimitive.hpp> +#include <vcl/bitmapex.hxx> +#include <tools/gen.hxx> +#include <vcl/canvastools.hxx> +#include <canvas/canvastools.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/point/b2dpoint.hxx> +#include <basegfx/range/b2drange.hxx> +#include <sal/log.hxx> +#include "cachedprimitivebase.hxx" +#include "bitmapaction.hxx" +#include <outdevstate.hxx> +#include "mtftools.hxx" +#include <basegfx/matrix/b2dhommatrixtools.hxx> + + +using namespace ::com::sun::star; + +namespace cppcanvas::internal +{ + namespace + { + + class BitmapAction : public CachedPrimitiveBase + { + public: + BitmapAction( const ::BitmapEx&, + const ::basegfx::B2DPoint& rDstPoint, + const CanvasSharedPtr&, + const OutDevState& ); + BitmapAction( const ::BitmapEx&, + const ::basegfx::B2DPoint& rDstPoint, + const ::basegfx::B2DVector& rDstSize, + const CanvasSharedPtr&, + const OutDevState& ); + + 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: + using Action::render; + virtual bool renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive, + const ::basegfx::B2DHomMatrix& rTransformation ) const override; + + uno::Reference< rendering::XBitmap > mxBitmap; + CanvasSharedPtr mpCanvas; + rendering::RenderState maState; + }; + + + BitmapAction::BitmapAction( const ::BitmapEx& rBmpEx, + const ::basegfx::B2DPoint& rDstPoint, + const CanvasSharedPtr& rCanvas, + const OutDevState& rState ) : + CachedPrimitiveBase( rCanvas, true ), + mxBitmap( vcl::unotools::xBitmapFromBitmapEx( rBmpEx ) ), + mpCanvas( rCanvas ) + { + tools::initRenderState(maState,rState); + + // Setup transformation such that the next render call is + // moved rPoint away. + const basegfx::B2DHomMatrix aLocalTransformation(basegfx::utils::createTranslateB2DHomMatrix(rDstPoint)); + ::canvas::tools::appendToRenderState( maState, + aLocalTransformation ); + + // correct clip (which is relative to original transform) + tools::modifyClip( maState, + rState, + rCanvas, + rDstPoint, + nullptr, + nullptr ); + } + + BitmapAction::BitmapAction( const ::BitmapEx& rBmpEx, + const ::basegfx::B2DPoint& rDstPoint, + const ::basegfx::B2DVector& rDstSize, + const CanvasSharedPtr& rCanvas, + const OutDevState& rState ) : + CachedPrimitiveBase( rCanvas, true ), + mxBitmap( vcl::unotools::xBitmapFromBitmapEx( rBmpEx ) ), + mpCanvas( rCanvas ) + { + tools::initRenderState(maState,rState); + + // Setup transformation such that the next render call is + // moved rPoint away, and scaled according to the ratio + // given by src and dst size. + const ::Size aBmpSize( rBmpEx.GetSizePixel() ); + + const ::basegfx::B2DVector aScale( rDstSize.getX() / aBmpSize.Width(), + rDstSize.getY() / aBmpSize.Height() ); + const basegfx::B2DHomMatrix aLocalTransformation(basegfx::utils::createScaleTranslateB2DHomMatrix( + aScale, rDstPoint)); + ::canvas::tools::appendToRenderState( maState, aLocalTransformation ); + + // correct clip (which is relative to original transform) + tools::modifyClip( maState, + rState, + rCanvas, + rDstPoint, + &aScale, + nullptr ); + } + + bool BitmapAction::renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive, + const ::basegfx::B2DHomMatrix& rTransformation ) const + { + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::BitmapAction::renderPrimitive()" ); + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::BitmapAction: 0x" << std::hex << this ); + + rendering::RenderState aLocalState( maState ); + ::canvas::tools::prependToRenderState(aLocalState, rTransformation); + + rCachedPrimitive = mpCanvas->getUNOCanvas()->drawBitmap( mxBitmap, + mpCanvas->getViewState(), + aLocalState ); + + return true; + } + + bool BitmapAction::renderSubset( const ::basegfx::B2DHomMatrix& rTransformation, + const Subset& rSubset ) const + { + // bitmap only contains a single action, fail if subset + // requests different range + if( rSubset.mnSubsetBegin != 0 || + rSubset.mnSubsetEnd != 1 ) + return false; + + return CachedPrimitiveBase::render( rTransformation ); + } + + ::basegfx::B2DRange BitmapAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const + { + rendering::RenderState aLocalState( maState ); + ::canvas::tools::prependToRenderState(aLocalState, rTransformation); + + const geometry::IntegerSize2D aSize( mxBitmap->getSize() ); + + return tools::calcDevicePixelBounds( ::basegfx::B2DRange( 0,0, + aSize.Width, + aSize.Height ), + mpCanvas->getViewState(), + aLocalState ); + } + + ::basegfx::B2DRange BitmapAction::getBounds( const ::basegfx::B2DHomMatrix& rTransformation, + const Subset& rSubset ) const + { + // bitmap 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 BitmapAction::getActionCount() const + { + return 1; + } + } + + std::shared_ptr<Action> BitmapActionFactory::createBitmapAction( const ::BitmapEx& rBmpEx, + const ::basegfx::B2DPoint& rDstPoint, + const CanvasSharedPtr& rCanvas, + const OutDevState& rState ) + { + return std::make_shared<BitmapAction>(rBmpEx, rDstPoint, rCanvas, rState ); + } + + std::shared_ptr<Action> BitmapActionFactory::createBitmapAction( const ::BitmapEx& rBmpEx, + const ::basegfx::B2DPoint& rDstPoint, + const ::basegfx::B2DVector& rDstSize, + const CanvasSharedPtr& rCanvas, + const OutDevState& rState ) + { + return std::make_shared<BitmapAction>(rBmpEx, + rDstPoint, + rDstSize, + rCanvas, + rState ); + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |