31bc29b99c
See tdf#74608 for motivation Change-Id: I2635df49edc2124f41a557110332ce5646cc59ef Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98093 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
375 lines
15 KiB
C++
375 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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#include <com/sun/star/lang/IllegalArgumentException.hpp>
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#include <com/sun/star/lang/XServiceName.hpp>
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#include <com/sun/star/rendering/CompositeOperation.hpp>
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#include <com/sun/star/rendering/PanoseLetterForm.hpp>
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#include <com/sun/star/rendering/PanoseWeight.hpp>
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#include <com/sun/star/rendering/XSimpleCanvas.hpp>
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#include <com/sun/star/uno/XComponentContext.hpp>
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#include <cppuhelper/basemutex.hxx>
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#include <cppuhelper/compbase.hxx>
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#include <o3tl/lazy_update.hxx>
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#include <canvas/canvastools.hxx>
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#include <functional>
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using namespace ::com::sun::star;
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using namespace canvas;
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namespace
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{
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uno::Sequence< double > color2Sequence( sal_Int32 nColor )
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{
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// TODO(F3): Color management
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uno::Sequence< double > aRes( 4 );
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aRes[0] = static_cast<sal_uInt8>( (nColor&0xFF000000U) >> 24U ) / 255.0;
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aRes[1] = static_cast<sal_uInt8>( (nColor&0x00FF0000U) >> 16U ) / 255.0;
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aRes[2] = static_cast<sal_uInt8>( (nColor&0x0000FF00U) >> 8U ) / 255.0;
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aRes[3] = static_cast<sal_uInt8>( (nColor&0x000000FFU) ) / 255.0;
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return aRes;
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}
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uno::Reference< rendering::XPolyPolygon2D > rect2Poly( uno::Reference<rendering::XGraphicDevice> const& xDevice,
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geometry::RealRectangle2D const& rRect )
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{
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uno::Sequence< geometry::RealPoint2D > rectSequence( 4 );
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geometry::RealPoint2D* pOutput = rectSequence.getArray();
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pOutput[0] = geometry::RealPoint2D( rRect.X1, rRect.Y1 );
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pOutput[1] = geometry::RealPoint2D( rRect.X2, rRect.Y1 );
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pOutput[2] = geometry::RealPoint2D( rRect.X2, rRect.Y2 );
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pOutput[3] = geometry::RealPoint2D( rRect.X1, rRect.Y2 );
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uno::Sequence< uno::Sequence< geometry::RealPoint2D > > sequenceSequence( 1 );
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sequenceSequence[0] = rectSequence;
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uno::Reference< rendering::XPolyPolygon2D > xRes =
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xDevice->createCompatibleLinePolyPolygon( sequenceSequence );
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if( xRes.is() )
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xRes->setClosed( 0, true );
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return xRes;
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}
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struct SimpleRenderState
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{
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o3tl::LazyUpdate<sal_Int32,
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uno::Sequence<double>,
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decltype(&color2Sequence)> m_aPenColor;
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o3tl::LazyUpdate<sal_Int32,
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uno::Sequence<double>,
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decltype(&color2Sequence)> m_aFillColor;
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o3tl::LazyUpdate<geometry::RealRectangle2D,
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uno::Reference< rendering::XPolyPolygon2D >,
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std::function<uno::Reference<rendering::XPolyPolygon2D> (geometry::RealRectangle2D)> > m_aRectClip;
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geometry::AffineMatrix2D m_aTransformation;
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explicit SimpleRenderState( uno::Reference<rendering::XGraphicDevice> const& xDevice ) :
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m_aPenColor( &color2Sequence),
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m_aFillColor( &color2Sequence ),
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m_aRectClip( [&xDevice](geometry::RealRectangle2D const& rRect) { return rect2Poly(xDevice, rRect); } ),
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m_aTransformation()
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{
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tools::setIdentityAffineMatrix2D( m_aTransformation );
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}
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};
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typedef ::cppu::WeakComponentImplHelper< css::rendering::XSimpleCanvas,
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css::lang::XServiceName > SimpleCanvasBase;
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class SimpleCanvasImpl : private cppu::BaseMutex,
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public SimpleCanvasBase
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{
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private:
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bool isStrokingEnabled() const
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{
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return maRenderState.m_aPenColor.getInValue() % 0x100 != 0;
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}
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rendering::RenderState createStrokingRenderState() const
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{
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return rendering::RenderState(maRenderState.m_aTransformation,
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*maRenderState.m_aRectClip,
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*maRenderState.m_aPenColor,
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rendering::CompositeOperation::OVER);
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}
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bool isFillingEnabled() const
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{
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return maRenderState.m_aFillColor.getInValue() % 0x100 != 0;
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}
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rendering::RenderState createFillingRenderState() const
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{
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return rendering::RenderState(maRenderState.m_aTransformation,
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*maRenderState.m_aRectClip,
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*maRenderState.m_aFillColor,
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rendering::CompositeOperation::OVER);
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}
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static uno::Reference<rendering::XCanvas> grabCanvas( uno::Sequence<uno::Any> const& rArgs )
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{
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uno::Reference<rendering::XCanvas> xRet;
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// can't do much without an XCanvas, can't we?
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if( !rArgs.hasElements() )
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throw lang::IllegalArgumentException();
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xRet.set( rArgs[0], uno::UNO_QUERY );
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// can't do much without an XCanvas, can't we?
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if( !xRet.is() )
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throw lang::IllegalArgumentException();
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return xRet;
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}
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public:
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SimpleCanvasImpl( const uno::Sequence< uno::Any >& aArguments,
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const uno::Reference< uno::XComponentContext >& ) :
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SimpleCanvasBase( m_aMutex ),
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mxCanvas( grabCanvas(aArguments) ),
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maFont([this](rendering::FontRequest const& rFontRequest) {
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return mxCanvas->createFont(rFontRequest,
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uno::Sequence< beans::PropertyValue >(),
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geometry::Matrix2D()); } ),
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maViewState(),
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maRenderState( mxCanvas->getDevice() )
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{
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tools::initViewState(maViewState);
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}
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private:
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// Ifc XServiceName
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virtual OUString SAL_CALL getServiceName( ) override
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{
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return "com.sun.star.rendering.SimpleCanvas";
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}
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// Ifc XSimpleCanvas
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virtual void SAL_CALL selectFont( const OUString& sFontName,
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double size,
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sal_Bool bold,
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sal_Bool italic ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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maFont->FontDescription.FamilyName = sFontName;
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maFont->CellSize = size;
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maFont->FontDescription.FontDescription.Weight =
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bold ? rendering::PanoseWeight::BOLD : rendering::PanoseWeight::MEDIUM;
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maFont->FontDescription.FontDescription.Letterform =
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italic ? rendering::PanoseLetterForm::OBLIQUE_CONTACT : rendering::PanoseLetterForm::ANYTHING;
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}
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virtual void SAL_CALL setPenColor( ::sal_Int32 nsRgbaColor ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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*(maRenderState.m_aPenColor) = nsRgbaColor;
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}
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virtual void SAL_CALL setFillColor( ::sal_Int32 nsRgbaColor ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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*(maRenderState.m_aFillColor) = nsRgbaColor;
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}
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virtual void SAL_CALL setRectClip( const geometry::RealRectangle2D& aRect ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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*(maRenderState.m_aRectClip) = aRect;
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}
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virtual void SAL_CALL setTransformation( const geometry::AffineMatrix2D& aTransform ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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maRenderState.m_aTransformation = aTransform;
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}
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virtual void SAL_CALL drawPixel( const geometry::RealPoint2D& aPoint ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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mxCanvas->drawPoint(aPoint,
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maViewState,
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createFillingRenderState());
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}
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virtual void SAL_CALL drawLine( const geometry::RealPoint2D& aStartPoint,
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const geometry::RealPoint2D& aEndPoint ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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mxCanvas->drawLine(aStartPoint,
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aEndPoint,
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maViewState,
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createStrokingRenderState());
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}
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virtual void SAL_CALL drawRect( const geometry::RealRectangle2D& aRect ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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uno::Reference< rendering::XPolyPolygon2D > xPoly(
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rect2Poly( mxCanvas->getDevice(),
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aRect));
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if( isFillingEnabled() )
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mxCanvas->drawPolyPolygon(xPoly,
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maViewState,
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createFillingRenderState());
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if( isStrokingEnabled() )
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mxCanvas->drawPolyPolygon(xPoly,
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maViewState,
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createStrokingRenderState());
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}
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virtual void SAL_CALL drawPolyPolygon( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if( isFillingEnabled() )
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mxCanvas->drawPolyPolygon(xPolyPolygon,
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maViewState,
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createFillingRenderState());
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if( isStrokingEnabled() )
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mxCanvas->drawPolyPolygon(xPolyPolygon,
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maViewState,
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createStrokingRenderState());
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}
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virtual void SAL_CALL drawText( const rendering::StringContext& aText,
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const geometry::RealPoint2D& aOutPos,
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::sal_Int8 nTextDirection ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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const basegfx::B2DHomMatrix offsetTransform(basegfx::utils::createTranslateB2DHomMatrix(aOutPos.X,aOutPos.Y));
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rendering::RenderState aRenderState( createStrokingRenderState() );
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tools::appendToRenderState(aRenderState, offsetTransform);
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mxCanvas->drawText(aText,
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maFont.getOutValue(),
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maViewState,
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aRenderState,
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nTextDirection);
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}
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virtual void SAL_CALL drawBitmap( const uno::Reference< rendering::XBitmap >& xBitmap,
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const geometry::RealPoint2D& aLeftTop ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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const basegfx::B2DHomMatrix offsetTransform(basegfx::utils::createTranslateB2DHomMatrix(aLeftTop.X,aLeftTop.Y));
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rendering::RenderState aRenderState( createStrokingRenderState() );
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tools::appendToRenderState(aRenderState, offsetTransform);
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mxCanvas->drawBitmap(xBitmap,maViewState,aRenderState);
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}
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virtual uno::Reference< rendering::XGraphicDevice > SAL_CALL getDevice( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return mxCanvas->getDevice();
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}
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virtual uno::Reference< rendering::XCanvas > SAL_CALL getCanvas( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return mxCanvas;
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}
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virtual rendering::FontMetrics SAL_CALL getFontMetrics( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return maFont.getOutValue()->getFontMetrics();
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}
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virtual uno::Reference< rendering::XCanvasFont > SAL_CALL getCurrentFont( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return maFont.getOutValue();
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}
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virtual ::sal_Int32 SAL_CALL getCurrentPenColor( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return maRenderState.m_aPenColor.getInValue();
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}
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virtual ::sal_Int32 SAL_CALL getCurrentFillColor( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return maRenderState.m_aFillColor.getInValue();
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}
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virtual geometry::RealRectangle2D SAL_CALL getCurrentClipRect( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return maRenderState.m_aRectClip.getInValue();
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}
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virtual geometry::AffineMatrix2D SAL_CALL getCurrentTransformation( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return maRenderState.m_aTransformation;
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}
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virtual rendering::ViewState SAL_CALL getCurrentViewState( ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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return maViewState;
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}
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virtual rendering::RenderState SAL_CALL getCurrentRenderState( sal_Bool bUseFillColor ) override
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if( bUseFillColor )
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return createFillingRenderState();
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else
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return createStrokingRenderState();
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}
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typedef o3tl::LazyUpdate<
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rendering::FontRequest,
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uno::Reference< rendering::XCanvasFont >,
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std::function<uno::Reference<rendering::XCanvasFont> (rendering::FontRequest)> > SimpleFont;
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uno::Reference<rendering::XCanvas> mxCanvas;
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SimpleFont maFont;
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rendering::ViewState maViewState;
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SimpleRenderState maRenderState;
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};
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}
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extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
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com_sun_star_comp_rendering_SimpleCanvas(
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css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
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{
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return cppu::acquire(new SimpleCanvasImpl(args, context));
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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