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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 .
*/
#ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
#define INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
#include <drawinglayer/processor2d/baseprocessor2d.hxx>
namespace basegfx { class B2DPolygon; }
namespace basegfx { class B2DPolyPolygon; }
namespace drawinglayer::primitive2d { class ScenePrimitive2D; }
namespace drawinglayer::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 drawinglayer::processor2d
#endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
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