d1a9c73ea1
also edited two examples in canvas comments Change-Id: Iac82b462168f869f995c33bb2c639f3dbe09cbd5 Reviewed-on: https://gerrit.libreoffice.org/31715 Reviewed-by: Stephan Bergmann <sbergman@redhat.com> Tested-by: Stephan Bergmann <sbergman@redhat.com>
162 lines
8.3 KiB
C++
162 lines
8.3 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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#ifndef INCLUDED_CANVAS_PARAMETRICPOLYPOLYGON_HXX
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#define INCLUDED_CANVAS_PARAMETRICPOLYPOLYGON_HXX
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/rendering/XGraphicDevice.hpp>
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#include <com/sun/star/rendering/XParametricPolyPolygon2D.hpp>
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#include <cppuhelper/compbase.hxx>
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#include <cppuhelper/basemutex.hxx>
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#include <basegfx/polygon/b2dpolygon.hxx>
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#include <canvas/canvastoolsdllapi.h>
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namespace basegfx
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{
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class B2DPolygon;
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class B2DHomMatrix;
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}
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/* Definition of ParametricPolyPolygon class */
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namespace canvas
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{
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typedef cppu::WeakComponentImplHelper< css::rendering::XParametricPolyPolygon2D,
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css::lang::XServiceInfo > ParametricPolyPolygon_Base;
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class CANVASTOOLS_DLLPUBLIC ParametricPolyPolygon : public ::cppu::BaseMutex,
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public ParametricPolyPolygon_Base
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{
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public:
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enum class GradientType
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{
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Linear,
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Elliptical,
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Rectangular
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};
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/** Structure of defining values for the ParametricPolyPolygon
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This is used to copy the state of the
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ParametricPolyPolygon atomically.
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*/
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struct Values
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{
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Values( const ::basegfx::B2DPolygon& rGradientPoly,
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const css::uno::Sequence< css::uno::Sequence< double > >& rColors,
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const css::uno::Sequence< double >& rStops,
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double nAspectRatio,
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GradientType eType ) :
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maGradientPoly( rGradientPoly ),
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mnAspectRatio( nAspectRatio ),
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maColors( rColors ),
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maStops( rStops ),
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meType( eType )
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{
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}
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/// Polygonal gradient shape (ignored for linear and axial gradient)
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const ::basegfx::B2DPolygon maGradientPoly;
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/// Aspect ratio of gradient, affects scaling of innermost gradient polygon
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const double mnAspectRatio;
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/// Gradient colors
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const css::uno::Sequence< css::uno::Sequence< double > > maColors;
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/// Gradient color stops
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const css::uno::Sequence< double > maStops;
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/// Type of gradient to render (as e.g. linear grads are not represented by maGradientPoly)
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const GradientType meType;
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};
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static css::uno::Sequence< OUString > getAvailableServiceNames();
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static ParametricPolyPolygon* create(
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const css::uno::Reference< css::rendering::XGraphicDevice >& rDevice,
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const OUString& rServiceName,
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const css::uno::Sequence< css::uno::Any >& rArgs );
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/// Dispose all internal references
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virtual void SAL_CALL disposing() override;
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// XParametricPolyPolygon2D
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virtual css::uno::Reference< css::rendering::XPolyPolygon2D > SAL_CALL getOutline( double t ) throw (css::lang::IllegalArgumentException, css::uno::RuntimeException, std::exception) override;
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virtual css::uno::Sequence< double > SAL_CALL getColor( double t ) throw (css::lang::IllegalArgumentException, css::uno::RuntimeException, std::exception) override;
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virtual css::uno::Sequence< double > SAL_CALL getPointColor( const css::geometry::RealPoint2D& point ) throw (css::lang::IllegalArgumentException, css::uno::RuntimeException, std::exception) override;
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virtual css::uno::Reference< css::rendering::XColorSpace > SAL_CALL getColorSpace() throw (css::uno::RuntimeException, std::exception) override;
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// XServiceInfo
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virtual OUString SAL_CALL getImplementationName( ) throw (css::uno::RuntimeException, std::exception) override;
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virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw (css::uno::RuntimeException, std::exception) override;
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virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames( ) throw (css::uno::RuntimeException, std::exception) override;
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/// Query all defining values of this object atomically
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Values getValues() const;
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protected:
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virtual ~ParametricPolyPolygon() override; // we're a ref-counted UNO class. _We_ destroy ourselves.
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ParametricPolyPolygon(const ParametricPolyPolygon&) = delete;
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ParametricPolyPolygon& operator=( const ParametricPolyPolygon& ) = delete;
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private:
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static ParametricPolyPolygon* createLinearHorizontalGradient( const css::uno::Reference<
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css::rendering::XGraphicDevice >& rDevice,
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const css::uno::Sequence< css::uno::Sequence< double > >& colors,
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const css::uno::Sequence< double >& stops );
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static ParametricPolyPolygon* createEllipticalGradient( const css::uno::Reference<
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css::rendering::XGraphicDevice >& rDevice,
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const css::uno::Sequence< css::uno::Sequence< double > >& colors,
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const css::uno::Sequence< double >& stops,
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double fAspect );
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static ParametricPolyPolygon* createRectangularGradient( const css::uno::Reference<
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css::rendering::XGraphicDevice >& rDevice,
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const css::uno::Sequence< css::uno::Sequence< double > >& colors,
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const css::uno::Sequence< double >& stops,
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double fAspect );
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/// Private, because objects can only be created from the static factories
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ParametricPolyPolygon( const css::uno::Reference<
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css::rendering::XGraphicDevice >& rDevice,
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const ::basegfx::B2DPolygon& rGradientPoly,
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GradientType eType,
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const css::uno::Sequence< css::uno::Sequence< double > >& colors,
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const css::uno::Sequence< double >& stops,
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double nAspectRatio );
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ParametricPolyPolygon( const css::uno::Reference<
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css::rendering::XGraphicDevice >& rDevice,
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GradientType eType,
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const css::uno::Sequence< css::uno::Sequence< double > >& colors,
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const css::uno::Sequence< double >& stops );
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css::uno::Reference<
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css::rendering::XGraphicDevice > mxDevice;
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/// All defining values of this object
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const Values maValues;
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};
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}
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#endif /* INCLUDED_CANVAS_PARAMETRICPOLYPOLYGON_HXX */
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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