94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
/* -*- 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_BASEGFX_RANGE_B2DPOLYRANGE_HXX
|
|
#define INCLUDED_BASEGFX_RANGE_B2DPOLYRANGE_HXX
|
|
|
|
#include <o3tl/cow_wrapper.hxx>
|
|
#include <boost/tuple/tuple.hpp>
|
|
#include <basegfx/vector/b2enums.hxx>
|
|
#include <basegfx/basegfxdllapi.h>
|
|
|
|
namespace basegfx
|
|
{
|
|
class B2DTuple;
|
|
class B2DRange;
|
|
class B2DPolyPolygon;
|
|
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 boost::tuple<B2DRange,B2VectorOrientation> ElementType ;
|
|
|
|
B2DPolyRange();
|
|
~B2DPolyRange();
|
|
|
|
/** Create a multi range with exactly one containing range
|
|
*/
|
|
B2DPolyRange( const B2DPolyRange& );
|
|
B2DPolyRange& operator=( const B2DPolyRange& );
|
|
|
|
bool operator==(const B2DPolyRange&) const;
|
|
bool operator!=(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, sal_uInt32 nCount = 1);
|
|
|
|
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;
|
|
|
|
private:
|
|
o3tl::cow_wrapper< ImplB2DPolyRange > mpImpl;
|
|
};
|
|
}
|
|
|
|
#endif // INCLUDED_BASEGFX_RANGE_B2DPOLYRANGE_HXX
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|