/* -*- 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 .
*/
namespace basegfx
{ class B2DRange; class B2DPolyPolygon; class B2DHomMatrix; class ImplB2DPolyRange;
/** Multiple ranges in one object.
This class combines multiple ranges in one object, providing a total, enclosing range for it.
You can use this class e.g. when updating views containing rectangular objects. Add each modified object to a B2DMultiRange, then test each viewable object against intersection with the multi range.
Similar in spirit to the poly-polygon vs. polygon relationship.
Note that comparable to polygons, a poly-range can also contain 'holes' - this is encoded via polygon orientation at the poly-polygon, and via explicit flags for the poly-range.
*/ class BASEGFX_DLLPUBLIC B2DPolyRange
{ public: typedef std::tuple<B2DRange, B2VectorOrientation> ElementType;
B2DPolyRange();
~B2DPolyRange();
/** Create a multi range with exactly one containing range
*/
B2DPolyRange( const B2DPolyRange& );
B2DPolyRange& operator=( const B2DPolyRange& );
booloperator==(const B2DPolyRange&) const;
/// Number of included ranges
sal_uInt32 count() const;
ElementType getElement(sal_uInt32 nIndex) const;
// insert/append a single range void appendElement(const B2DRange& rRange, B2VectorOrientation eOrient);
void clear();
/** Test whether given range overlaps one or more of the included ranges. Does *not* use overall range, but checks individually.
*/ bool overlaps( const B2DRange& rRange ) const;
/** Request a poly-polygon with solved cross-overs
*/
B2DPolyPolygon solveCrossovers() const;
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