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Diffstat (limited to 'canvas/source/simplecanvas/simplecanvasimpl.cxx')
| -rw-r--r-- | canvas/source/simplecanvas/simplecanvasimpl.cxx | 369 |
1 files changed, 369 insertions, 0 deletions
diff --git a/canvas/source/simplecanvas/simplecanvasimpl.cxx b/canvas/source/simplecanvas/simplecanvasimpl.cxx new file mode 100644 index 000000000..18d2c0e98 --- /dev/null +++ b/canvas/source/simplecanvas/simplecanvasimpl.cxx @@ -0,0 +1,369 @@ +/* -*- 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 <sal/config.h> + +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <com/sun/star/lang/IllegalArgumentException.hpp> +#include <com/sun/star/lang/XServiceName.hpp> +#include <com/sun/star/rendering/CompositeOperation.hpp> +#include <com/sun/star/rendering/PanoseLetterForm.hpp> +#include <com/sun/star/rendering/PanoseWeight.hpp> +#include <com/sun/star/rendering/XSimpleCanvas.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> +#include <cppuhelper/basemutex.hxx> +#include <cppuhelper/compbase.hxx> +#include <o3tl/lazy_update.hxx> + +#include <canvas/canvastools.hxx> + + +#include <functional> + +using namespace ::com::sun::star; +using namespace canvas; + +namespace +{ + uno::Sequence< double > color2Sequence( sal_Int32 nColor ) + { + // TODO(F3): Color management + uno::Sequence< double > aRes{ + static_cast<sal_uInt8>( (nColor&0xFF000000U) >> 24U ) / 255.0, + static_cast<sal_uInt8>( (nColor&0x00FF0000U) >> 16U ) / 255.0, + static_cast<sal_uInt8>( (nColor&0x0000FF00U) >> 8U ) / 255.0, + static_cast<sal_uInt8>( (nColor&0x000000FFU) ) / 255.0 + }; + return aRes; + } + + uno::Reference< rendering::XPolyPolygon2D > rect2Poly( uno::Reference<rendering::XGraphicDevice> const& xDevice, + geometry::RealRectangle2D const& rRect ) + { + uno::Sequence< geometry::RealPoint2D > rectSequence{ + geometry::RealPoint2D( rRect.X1, rRect.Y1 ), + geometry::RealPoint2D( rRect.X2, rRect.Y1 ), + geometry::RealPoint2D( rRect.X2, rRect.Y2 ), + geometry::RealPoint2D( rRect.X1, rRect.Y2 ) + }; + uno::Sequence< uno::Sequence< geometry::RealPoint2D > > sequenceSequence{ rectSequence }; + uno::Reference< rendering::XPolyPolygon2D > xRes = + xDevice->createCompatibleLinePolyPolygon( sequenceSequence ); + if( xRes.is() ) + xRes->setClosed( 0, true ); + return xRes; + } + + struct SimpleRenderState + { + o3tl::LazyUpdate<sal_Int32, + uno::Sequence<double>, + decltype(&color2Sequence)> m_aPenColor; + o3tl::LazyUpdate<sal_Int32, + uno::Sequence<double>, + decltype(&color2Sequence)> m_aFillColor; + o3tl::LazyUpdate<geometry::RealRectangle2D, + uno::Reference< rendering::XPolyPolygon2D >, + std::function<uno::Reference<rendering::XPolyPolygon2D> (geometry::RealRectangle2D)> > m_aRectClip; + geometry::AffineMatrix2D m_aTransformation; + + explicit SimpleRenderState( uno::Reference<rendering::XGraphicDevice> const& xDevice ) : + m_aPenColor( &color2Sequence), + m_aFillColor( &color2Sequence ), + m_aRectClip( [&xDevice](geometry::RealRectangle2D const& rRect) { return rect2Poly(xDevice, rRect); } ) + { + tools::setIdentityAffineMatrix2D( m_aTransformation ); + } + }; + + + typedef ::cppu::WeakComponentImplHelper< css::rendering::XSimpleCanvas, + css::lang::XServiceName > SimpleCanvasBase; + + class SimpleCanvasImpl : private cppu::BaseMutex, + public SimpleCanvasBase + { + private: + bool isStrokingEnabled() const + { + return maRenderState.m_aPenColor.getInValue() % 0x100 != 0; + } + + rendering::RenderState createStrokingRenderState() const + { + return rendering::RenderState(maRenderState.m_aTransformation, + *maRenderState.m_aRectClip, + *maRenderState.m_aPenColor, + rendering::CompositeOperation::OVER); + } + + bool isFillingEnabled() const + { + return maRenderState.m_aFillColor.getInValue() % 0x100 != 0; + } + + rendering::RenderState createFillingRenderState() const + { + return rendering::RenderState(maRenderState.m_aTransformation, + *maRenderState.m_aRectClip, + *maRenderState.m_aFillColor, + rendering::CompositeOperation::OVER); + } + + static uno::Reference<rendering::XCanvas> grabCanvas( uno::Sequence<uno::Any> const& rArgs ) + { + uno::Reference<rendering::XCanvas> xRet; + + // can't do much without an XCanvas, can't we? + if( !rArgs.hasElements() ) + throw lang::IllegalArgumentException(); + + xRet.set( rArgs[0], uno::UNO_QUERY ); + + // can't do much without an XCanvas, can't we? + if( !xRet.is() ) + throw lang::IllegalArgumentException(); + + return xRet; + } + + public: + SimpleCanvasImpl( const uno::Sequence< uno::Any >& aArguments, + const uno::Reference< uno::XComponentContext >& ) : + SimpleCanvasBase( m_aMutex ), + mxCanvas( grabCanvas(aArguments) ), + maFont([this](rendering::FontRequest const& rFontRequest) { + return mxCanvas->createFont(rFontRequest, + uno::Sequence< beans::PropertyValue >(), + geometry::Matrix2D()); } ), + maRenderState( mxCanvas->getDevice() ) + { + tools::initViewState(maViewState); + } + + + private: + // Ifc XServiceName + virtual OUString SAL_CALL getServiceName( ) override + { + return "com.sun.star.rendering.SimpleCanvas"; + } + + // Ifc XSimpleCanvas + virtual void SAL_CALL selectFont( const OUString& sFontName, + double size, + sal_Bool bold, + sal_Bool italic ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + + maFont->FontDescription.FamilyName = sFontName; + maFont->CellSize = size; + maFont->FontDescription.FontDescription.Weight = + bold ? rendering::PanoseWeight::BOLD : rendering::PanoseWeight::MEDIUM; + maFont->FontDescription.FontDescription.Letterform = + italic ? rendering::PanoseLetterForm::OBLIQUE_CONTACT : rendering::PanoseLetterForm::ANYTHING; + } + + virtual void SAL_CALL setPenColor( ::sal_Int32 nsRgbaColor ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + *(maRenderState.m_aPenColor) = nsRgbaColor; + } + + virtual void SAL_CALL setFillColor( ::sal_Int32 nsRgbaColor ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + *(maRenderState.m_aFillColor) = nsRgbaColor; + } + + virtual void SAL_CALL setRectClip( const geometry::RealRectangle2D& aRect ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + *(maRenderState.m_aRectClip) = aRect; + } + + virtual void SAL_CALL setTransformation( const geometry::AffineMatrix2D& aTransform ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + maRenderState.m_aTransformation = aTransform; + } + + virtual void SAL_CALL drawPixel( const geometry::RealPoint2D& aPoint ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + mxCanvas->drawPoint(aPoint, + maViewState, + createFillingRenderState()); + } + + virtual void SAL_CALL drawLine( const geometry::RealPoint2D& aStartPoint, + const geometry::RealPoint2D& aEndPoint ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + mxCanvas->drawLine(aStartPoint, + aEndPoint, + maViewState, + createStrokingRenderState()); + } + + virtual void SAL_CALL drawRect( const geometry::RealRectangle2D& aRect ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + uno::Reference< rendering::XPolyPolygon2D > xPoly( + rect2Poly( mxCanvas->getDevice(), + aRect)); + + if( isFillingEnabled() ) + mxCanvas->drawPolyPolygon(xPoly, + maViewState, + createFillingRenderState()); + if( isStrokingEnabled() ) + mxCanvas->drawPolyPolygon(xPoly, + maViewState, + createStrokingRenderState()); + } + + virtual void SAL_CALL drawPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + + if( isFillingEnabled() ) + mxCanvas->drawPolyPolygon(xPolyPolygon, + maViewState, + createFillingRenderState()); + if( isStrokingEnabled() ) + mxCanvas->drawPolyPolygon(xPolyPolygon, + maViewState, + createStrokingRenderState()); + } + + virtual void SAL_CALL drawText( const rendering::StringContext& aText, + const geometry::RealPoint2D& aOutPos, + ::sal_Int8 nTextDirection ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + const basegfx::B2DHomMatrix offsetTransform(basegfx::utils::createTranslateB2DHomMatrix(aOutPos.X,aOutPos.Y)); + rendering::RenderState aRenderState( createStrokingRenderState() ); + tools::appendToRenderState(aRenderState, offsetTransform); + + mxCanvas->drawText(aText, + maFont.getOutValue(), + maViewState, + aRenderState, + nTextDirection); + } + + virtual void SAL_CALL drawBitmap( const uno::Reference< rendering::XBitmap >& xBitmap, + const geometry::RealPoint2D& aLeftTop ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + const basegfx::B2DHomMatrix offsetTransform(basegfx::utils::createTranslateB2DHomMatrix(aLeftTop.X,aLeftTop.Y)); + rendering::RenderState aRenderState( createStrokingRenderState() ); + tools::appendToRenderState(aRenderState, offsetTransform); + + mxCanvas->drawBitmap(xBitmap,maViewState,aRenderState); + } + + virtual uno::Reference< rendering::XGraphicDevice > SAL_CALL getDevice( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return mxCanvas->getDevice(); + } + + virtual uno::Reference< rendering::XCanvas > SAL_CALL getCanvas( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return mxCanvas; + } + + virtual rendering::FontMetrics SAL_CALL getFontMetrics( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return maFont.getOutValue()->getFontMetrics(); + } + + virtual uno::Reference< rendering::XCanvasFont > SAL_CALL getCurrentFont( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return maFont.getOutValue(); + } + + virtual ::sal_Int32 SAL_CALL getCurrentPenColor( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return maRenderState.m_aPenColor.getInValue(); + } + + virtual ::sal_Int32 SAL_CALL getCurrentFillColor( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return maRenderState.m_aFillColor.getInValue(); + } + + virtual geometry::RealRectangle2D SAL_CALL getCurrentClipRect( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return maRenderState.m_aRectClip.getInValue(); + } + + virtual geometry::AffineMatrix2D SAL_CALL getCurrentTransformation( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return maRenderState.m_aTransformation; + } + + virtual rendering::ViewState SAL_CALL getCurrentViewState( ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + return maViewState; + } + + virtual rendering::RenderState SAL_CALL getCurrentRenderState( sal_Bool bUseFillColor ) override + { + ::osl::MutexGuard aGuard( m_aMutex ); + if( bUseFillColor ) + return createFillingRenderState(); + else + return createStrokingRenderState(); + } + + + typedef o3tl::LazyUpdate< + rendering::FontRequest, + uno::Reference< rendering::XCanvasFont >, + std::function<uno::Reference<rendering::XCanvasFont> (rendering::FontRequest)> > SimpleFont; + + uno::Reference<rendering::XCanvas> mxCanvas; + SimpleFont maFont; + rendering::ViewState maViewState; + SimpleRenderState maRenderState; + }; + +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +com_sun_star_comp_rendering_SimpleCanvas( + css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args) +{ + return cppu::acquire(new SimpleCanvasImpl(args, context)); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |