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| -rw-r--r-- | canvas/inc/parametricpolypolygon.hxx | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/canvas/inc/parametricpolypolygon.hxx b/canvas/inc/parametricpolypolygon.hxx new file mode 100644 index 000000000..28be8b815 --- /dev/null +++ b/canvas/inc/parametricpolypolygon.hxx @@ -0,0 +1,152 @@ +/* -*- 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 . + */ + +#pragma once + +#include <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/rendering/XParametricPolyPolygon2D.hpp> +#include <cppuhelper/compbase.hxx> +#include <cppuhelper/basemutex.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> + +#include <canvas/canvastoolsdllapi.h> + +namespace com::sun::star::rendering { class XGraphicDevice; } + + +/* Definition of ParametricPolyPolygon class */ + +namespace canvas +{ + typedef cppu::WeakComponentImplHelper< css::rendering::XParametricPolyPolygon2D, + css::lang::XServiceInfo > ParametricPolyPolygon_Base; + + class CANVASTOOLS_DLLPUBLIC ParametricPolyPolygon final : public ::cppu::BaseMutex, + public ParametricPolyPolygon_Base + { + public: + enum class GradientType + { + Linear, + Elliptical, + Rectangular + }; + + /** Structure of defining values for the ParametricPolyPolygon + + This is used to copy the state of the + ParametricPolyPolygon atomically. + */ + struct Values + { + Values( const ::basegfx::B2DPolygon& rGradientPoly, + const css::uno::Sequence< css::uno::Sequence< double > >& rColors, + const css::uno::Sequence< double >& rStops, + double nAspectRatio, + GradientType eType ) : + maGradientPoly( rGradientPoly ), + mnAspectRatio( nAspectRatio ), + maColors( rColors ), + maStops( rStops ), + meType( eType ) + { + } + + /// Polygonal gradient shape (ignored for linear and axial gradient) + const ::basegfx::B2DPolygon maGradientPoly; + + /// Aspect ratio of gradient, affects scaling of innermost gradient polygon + const double mnAspectRatio; + + /// Gradient colors + const css::uno::Sequence< css::uno::Sequence< double > > maColors; + + /// Gradient color stops + const css::uno::Sequence< double > maStops; + + /// Type of gradient to render (as e.g. linear grads are not represented by maGradientPoly) + const GradientType meType; + }; + + static css::uno::Sequence< OUString > getAvailableServiceNames(); + static ParametricPolyPolygon* create( + const css::uno::Reference< css::rendering::XGraphicDevice >& rDevice, + const OUString& rServiceName, + const css::uno::Sequence< css::uno::Any >& rArgs ); + + /// Dispose all internal references + virtual void SAL_CALL disposing() override; + + // XParametricPolyPolygon2D + virtual css::uno::Reference< css::rendering::XPolyPolygon2D > SAL_CALL getOutline( double t ) override; + virtual css::uno::Sequence< double > SAL_CALL getColor( double t ) override; + virtual css::uno::Sequence< double > SAL_CALL getPointColor( const css::geometry::RealPoint2D& point ) override; + virtual css::uno::Reference< css::rendering::XColorSpace > SAL_CALL getColorSpace() override; + + // XServiceInfo + virtual OUString SAL_CALL getImplementationName( ) override; + virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override; + virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames( ) override; + + /// Query all defining values of this object atomically + Values getValues() const; + + private: + virtual ~ParametricPolyPolygon() override; // we're a ref-counted UNO class. _We_ destroy ourselves. + ParametricPolyPolygon(const ParametricPolyPolygon&) = delete; + ParametricPolyPolygon& operator=( const ParametricPolyPolygon& ) = delete; + + static ParametricPolyPolygon* createLinearHorizontalGradient( const css::uno::Reference< + css::rendering::XGraphicDevice >& rDevice, + const css::uno::Sequence< css::uno::Sequence< double > >& colors, + const css::uno::Sequence< double >& stops ); + static ParametricPolyPolygon* createEllipticalGradient( const css::uno::Reference< + css::rendering::XGraphicDevice >& rDevice, + const css::uno::Sequence< css::uno::Sequence< double > >& colors, + const css::uno::Sequence< double >& stops, + double fAspect ); + static ParametricPolyPolygon* createRectangularGradient( const css::uno::Reference< + css::rendering::XGraphicDevice >& rDevice, + const css::uno::Sequence< css::uno::Sequence< double > >& colors, + const css::uno::Sequence< double >& stops, + double fAspect ); + + /// Private, because objects can only be created from the static factories + ParametricPolyPolygon( const css::uno::Reference< + css::rendering::XGraphicDevice >& rDevice, + const ::basegfx::B2DPolygon& rGradientPoly, + GradientType eType, + const css::uno::Sequence< css::uno::Sequence< double > >& colors, + const css::uno::Sequence< double >& stops, + double nAspectRatio ); + ParametricPolyPolygon( const css::uno::Reference< + css::rendering::XGraphicDevice >& rDevice, + GradientType eType, + const css::uno::Sequence< css::uno::Sequence< double > >& colors, + const css::uno::Sequence< double >& stops ); + + css::uno::Reference< + css::rendering::XGraphicDevice > mxDevice; + + /// All defining values of this object + const Values maValues; + }; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |