d0f6f00c1a
Change-Id: Ia001c8e1e00df85d2be93e330811a1081179785d Reviewed-on: https://gerrit.libreoffice.org/15816 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>
95 lines
3.1 KiB
C++
95 lines
3.1 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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#ifndef INCLUDED_BASEGFX_RANGE_B2DPOLYRANGE_HXX
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#define INCLUDED_BASEGFX_RANGE_B2DPOLYRANGE_HXX
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#include <o3tl/cow_wrapper.hxx>
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#include <tuple>
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#include <basegfx/vector/b2enums.hxx>
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#include <basegfx/basegfxdllapi.h>
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namespace basegfx
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{
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class B2DTuple;
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class B2DRange;
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class B2DPolyPolygon;
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class ImplB2DPolyRange;
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/** Multiple ranges in one object.
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This class combines multiple ranges in one object, providing a
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total, enclosing range for it.
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You can use this class e.g. when updating views containing
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rectangular objects. Add each modified object to a
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B2DMultiRange, then test each viewable object against
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intersection with the multi range.
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Similar in spirit to the poly-polygon vs. polygon relationship.
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Note that comparable to polygons, a poly-range can also
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contain 'holes' - this is encoded via polygon orientation at
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the poly-polygon, and via explicit flags for the poly-range.
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*/
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class BASEGFX_DLLPUBLIC B2DPolyRange
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{
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public:
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typedef std::tuple<B2DRange, B2VectorOrientation> ElementType;
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B2DPolyRange();
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~B2DPolyRange();
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/** Create a multi range with exactly one containing range
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*/
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B2DPolyRange( const B2DPolyRange& );
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B2DPolyRange& operator=( const B2DPolyRange& );
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bool operator==(const B2DPolyRange&) const;
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bool operator!=(const B2DPolyRange&) const;
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/// Number of included ranges
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sal_uInt32 count() const;
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ElementType getElement(sal_uInt32 nIndex) const;
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// insert/append a single range
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void appendElement(const B2DRange& rRange, B2VectorOrientation eOrient, sal_uInt32 nCount = 1);
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void clear();
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/** Test whether given range overlaps one or more of the
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included ranges. Does *not* use overall range, but checks
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individually.
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*/
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bool overlaps( const B2DRange& rRange ) const;
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/** Request a poly-polygon with solved cross-overs
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*/
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B2DPolyPolygon solveCrossovers() const;
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private:
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o3tl::cow_wrapper< ImplB2DPolyRange > mpImpl;
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};
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}
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#endif // INCLUDED_BASEGFX_RANGE_B2DPOLYRANGE_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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