forked from amazingfate/loongoffice
a073b61339
Detect where created when a RGBA gradient could be used directly and create a primitive representing that, a PolyPolygonRGBAGradientPrimitive2D. That primitive decomposes to what was created before, so no primitive renderer has to be touched, all will work as before. NOTE: That helper primitive just holds references to what would be created anyways, so one depth step added but not really any additional data. This is the 1st step for direct support, the 2nd is to then detect and use that primitive in SDPR implementations directly. Change-Id: I4f247636ce58a8a1fd1e0df32dabed0d6cc10d0e Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170527 Tested-by: Jenkins Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com>
106 lines
3.9 KiB
C++
106 lines
3.9 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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#pragma once
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#include <drawinglayer/drawinglayerdllapi.h>
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#include <o3tl/cow_wrapper.hxx>
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#include <com/sun/star/awt/GradientStyle.hpp>
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namespace basegfx
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{
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class BColorStop;
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class BColor;
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class BColorStops;
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}
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namespace drawinglayer::attribute
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{
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class ImpFillGradientAttribute;
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class DRAWINGLAYER_DLLPUBLIC FillGradientAttribute
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{
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public:
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typedef o3tl::cow_wrapper<ImpFillGradientAttribute> ImplType;
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private:
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ImplType mpFillGradientAttribute;
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public:
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/* MCGR: Adaptions for MultiColorGradients
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Direct Start/EndCOlor is no longer required, instead the
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full color gradient is handed over as ColorStops vector.
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To add the former Start/EndColor in a compatible way, just
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prepare an instance of basegfx::BColorStops with the
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StartColor at 0.0 and the EndColor at 1.0.
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A rigid correction/input data will be done by the constructor,
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including to sort the ColorStops by offset and removing invalid
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entries (see sortAndCorrect)
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To access e.g. the StartColor, use getColorStops().front(), and
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getColorStops().back(), accordingly, for EndColor. The existence
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of at least one entry is guaranteed, so no need to check before
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accessing using of front()/back() calls. If only one color entry
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exists, start == end color is assumed, so not really a gradient
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but (existing) fallbacks to filled polygon can trigger.
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*/
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/// constructors/assignmentoperator/destructor
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FillGradientAttribute(css::awt::GradientStyle eStyle, double fBorder, double fOffsetX,
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double fOffsetY, double fAngle, const basegfx::BColorStops& rColorStops,
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sal_uInt16 nSteps = 0);
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FillGradientAttribute();
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FillGradientAttribute(const FillGradientAttribute&);
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FillGradientAttribute(FillGradientAttribute&&);
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FillGradientAttribute& operator=(const FillGradientAttribute&);
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FillGradientAttribute& operator=(FillGradientAttribute&&);
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~FillGradientAttribute();
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// checks if the incarnation is default constructed
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bool isDefault() const;
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// MCGR: Check if rendering cannot be handled by old vcl stuff
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// due to various restrictions, based on local parameters. There
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// may be even more reasons on caller's side, e.g. a
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// ViewTransformation that uses shear/rotate/mirror (what VCL
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// cannot do at all)
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bool cannotBeHandledByVCL() const;
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// check if local and given FillGradientAttribute are identical,
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// do take care of exceptions (e.g. no offset for linear/axial, ...)
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bool sameDefinitionThanAlpha(const FillGradientAttribute& rAlpha) const;
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// compare operator
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bool operator==(const FillGradientAttribute& rCandidate) const;
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// data read access
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css::awt::GradientStyle getStyle() const;
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double getBorder() const;
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double getOffsetX() const;
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double getOffsetY() const;
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double getAngle() const;
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const basegfx::BColorStops& getColorStops() const;
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sal_uInt16 getSteps() const;
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};
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} // end of namespace drawinglayer::attribute
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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