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-rw-r--r-- | include/drawinglayer/processor2d/hittestprocessor2d.hxx | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/drawinglayer/processor2d/hittestprocessor2d.hxx b/include/drawinglayer/processor2d/hittestprocessor2d.hxx new file mode 100644 index 000000000..3b044b451 --- /dev/null +++ b/include/drawinglayer/processor2d/hittestprocessor2d.hxx @@ -0,0 +1,98 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX +#define INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX + +#include <drawinglayer/drawinglayerdllapi.h> + +#include <drawinglayer/processor2d/baseprocessor2d.hxx> + +namespace basegfx { class B2DPolygon; } +namespace basegfx { class B2DPolyPolygon; } +namespace drawinglayer::primitive2d { class ScenePrimitive2D; } + +namespace drawinglayer +{ + namespace processor2d + { + /** HitTestProcessor2D class + + This processor implements a HitTest with the fed primitives, + given tolerance and extras + */ + class DRAWINGLAYER_DLLPUBLIC HitTestProcessor2D final : public BaseProcessor2D + { + private: + /// discrete HitTest position + basegfx::B2DPoint maDiscreteHitPosition; + + /// discrete HitTolerance + double mfDiscreteHitTolerance; + + /// stack of HitPrimitives, taken care of during HitTest run + primitive2d::Primitive2DContainer maHitStack; + + /// flag if HitStack shall be collected as part of the result, default is false + bool mbCollectHitStack : 1; + + /// Boolean to flag if a hit was found. If yes, fast exit is taken + bool mbHit : 1; + + /// flag to concentrate on text hits only + bool mbHitTextOnly : 1; + + /// tooling methods + void processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate) override; + bool checkHairlineHitWithTolerance( + const basegfx::B2DPolygon& rPolygon, + double fDiscreteHitTolerance) const; + bool checkFillHitWithTolerance( + const basegfx::B2DPolyPolygon& rPolyPolygon, + double fDiscreteHitTolerance) const; + void check3DHit(const primitive2d::ScenePrimitive2D& rCandidate); + + public: + HitTestProcessor2D( + const geometry::ViewInformation2D& rViewInformation, + const basegfx::B2DPoint& rLogicHitPosition, + double fLogicHitTolerance, + bool bHitTextOnly); + virtual ~HitTestProcessor2D() override; + + /// switch on collecting primitives for a found hit on maHitStack, default is off + void collectHitStack(bool bCollect) { mbCollectHitStack = bCollect; } + + /// get HitStack of primitives, first is the one that created the hit, last is the + /// top-most + const primitive2d::Primitive2DContainer& getHitStack() const { return maHitStack; } + + /// data read access + const basegfx::B2DPoint& getDiscreteHitPosition() const { return maDiscreteHitPosition; } + double getDiscreteHitTolerance() const { return mfDiscreteHitTolerance; } + bool getCollectHitStack() const { return mbCollectHitStack; } + bool getHit() const { return mbHit; } + bool getHitTextOnly() const { return mbHitTextOnly; } + }; + } // end of namespace processor2d +} // end of namespace drawinglayer + +#endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |