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+/* -*- 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 <comphelper/compbase.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+
+#include <canvas/canvastoolsdllapi.h>
+#include <rtl/ref.hxx>
+#include <utility>
+
+namespace com::sun::star::rendering { class XGraphicDevice; }
+
+
+/* Definition of ParametricPolyPolygon class */
+
+namespace canvas
+{
+ typedef comphelper::WeakComponentImplHelper< css::rendering::XParametricPolyPolygon2D,
+ css::lang::XServiceInfo > ParametricPolyPolygon_Base;
+
+ class CANVASTOOLS_DLLPUBLIC ParametricPolyPolygon final : 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( ::basegfx::B2DPolygon aGradientPoly,
+ const css::uno::Sequence< css::uno::Sequence< double > >& rColors,
+ const css::uno::Sequence< double >& rStops,
+ double nAspectRatio,
+ GradientType eType ) :
+ maGradientPoly(std::move( aGradientPoly )),
+ 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 rtl::Reference<ParametricPolyPolygon> create(
+ const css::uno::Reference< css::rendering::XGraphicDevice >& rDevice,
+ std::u16string_view rServiceName,
+ const css::uno::Sequence< css::uno::Any >& rArgs );
+
+ /// Dispose all internal references
+ virtual void disposing(std::unique_lock<std::mutex>&) 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 rtl::Reference<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 rtl::Reference<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 rtl::Reference<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( css::uno::Reference<
+ css::rendering::XGraphicDevice > xDevice,
+ const ::basegfx::B2DPolygon& rGradientPoly,
+ GradientType eType,
+ const css::uno::Sequence< css::uno::Sequence< double > >& colors,
+ const css::uno::Sequence< double >& stops,
+ double nAspectRatio );
+ ParametricPolyPolygon( css::uno::Reference<
+ css::rendering::XGraphicDevice > xDevice,
+ 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: */