4905a19032
Fixes #fdo30794 Based on bin/add-modelines script (originally posted in mail 1286706307.1871.1399280959@webmail.messagingengine.com) Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
145 lines
6.2 KiB
C++
145 lines
6.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*************************************************************************
|
|
*
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* Copyright 2000, 2010 Oracle and/or its affiliates.
|
|
*
|
|
* OpenOffice.org - a multi-platform office productivity suite
|
|
*
|
|
* This file is part of OpenOffice.org.
|
|
*
|
|
* OpenOffice.org is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License version 3
|
|
* only, as published by the Free Software Foundation.
|
|
*
|
|
* OpenOffice.org is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License version 3 for more details
|
|
* (a copy is included in the LICENSE file that accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* version 3 along with OpenOffice.org. If not, see
|
|
* <http://www.openoffice.org/license.html>
|
|
* for a copy of the LGPLv3 License.
|
|
*
|
|
************************************************************************/
|
|
|
|
// MARKER(update_precomp.py): autogen include statement, do not remove
|
|
#include "precompiled_basegfx.hxx"
|
|
|
|
#include <basegfx/range/b2drange.hxx>
|
|
#include <basegfx/range/b2irange.hxx>
|
|
#include <basegfx/range/b2ibox.hxx>
|
|
|
|
|
|
namespace basegfx
|
|
{
|
|
namespace
|
|
{
|
|
/** Generic implementation of the difference set computation
|
|
|
|
@tpl RangeType
|
|
Type to operate on. Must provide ValueType and TraitsType
|
|
nested types.
|
|
*/
|
|
template< class RangeType > void doComputeSetDifference(
|
|
::std::vector< RangeType >& o_rRanges,
|
|
const RangeType& a,
|
|
const RangeType& b )
|
|
{
|
|
o_rRanges.clear();
|
|
|
|
// special-casing the empty rect case (this will fail most
|
|
// of the times below, because of the DBL_MIN/MAX special
|
|
// values denoting emptyness in the rectangle.
|
|
if( a.isEmpty() )
|
|
{
|
|
o_rRanges.push_back( b );
|
|
return;
|
|
}
|
|
if( b.isEmpty() )
|
|
{
|
|
o_rRanges.push_back( a );
|
|
return;
|
|
}
|
|
|
|
const typename RangeType::ValueType ax(a.getMinX());
|
|
const typename RangeType::ValueType ay(a.getMinY());
|
|
const typename RangeType::TraitsType::DifferenceType aw(a.getWidth());
|
|
const typename RangeType::TraitsType::DifferenceType ah(a.getHeight());
|
|
const typename RangeType::ValueType bx(b.getMinX());
|
|
const typename RangeType::ValueType by(b.getMinY());
|
|
const typename RangeType::TraitsType::DifferenceType bw(b.getWidth());
|
|
const typename RangeType::TraitsType::DifferenceType bh(b.getHeight());
|
|
|
|
const typename RangeType::TraitsType::DifferenceType h0( (by > ay) ? by - ay : 0 );
|
|
const typename RangeType::TraitsType::DifferenceType h3( (by + bh < ay + ah) ? ay + ah - by - bh : 0 );
|
|
const typename RangeType::TraitsType::DifferenceType w1( (bx > ax) ? bx - ax : 0 );
|
|
const typename RangeType::TraitsType::DifferenceType w2( (ax + aw > bx + bw) ? ax + aw - bx - bw : 0 );
|
|
const typename RangeType::TraitsType::DifferenceType h12( (h0 + h3 < ah) ? ah - h0 - h3 : 0 );
|
|
|
|
// TODO(E2): Use numeric_cast instead of static_cast here,
|
|
// need range checks!
|
|
if (h0 > 0)
|
|
o_rRanges.push_back(
|
|
RangeType(ax,ay,
|
|
static_cast<typename RangeType::ValueType>(ax+aw),
|
|
static_cast<typename RangeType::ValueType>(ay+h0)) );
|
|
|
|
if (w1 > 0 && h12 > 0)
|
|
o_rRanges.push_back(
|
|
RangeType(ax,
|
|
static_cast<typename RangeType::ValueType>(ay+h0),
|
|
static_cast<typename RangeType::ValueType>(ax+w1),
|
|
static_cast<typename RangeType::ValueType>(ay+h0+h12)) );
|
|
|
|
if (w2 > 0 && h12 > 0)
|
|
o_rRanges.push_back(
|
|
RangeType(static_cast<typename RangeType::ValueType>(bx+bw),
|
|
static_cast<typename RangeType::ValueType>(ay+h0),
|
|
static_cast<typename RangeType::ValueType>(bx+bw+w2),
|
|
static_cast<typename RangeType::ValueType>(ay+h0+h12)) );
|
|
|
|
if (h3 > 0)
|
|
o_rRanges.push_back(
|
|
RangeType(ax,
|
|
static_cast<typename RangeType::ValueType>(ay+h0+h12),
|
|
static_cast<typename RangeType::ValueType>(ax+aw),
|
|
static_cast<typename RangeType::ValueType>(ay+h0+h12+h3)) );
|
|
}
|
|
}
|
|
|
|
::std::vector< B2IRange >& computeSetDifference( ::std::vector< B2IRange >& o_rResult,
|
|
const B2IRange& rFirst,
|
|
const B2IRange& rSecond )
|
|
{
|
|
doComputeSetDifference( o_rResult, rFirst, rSecond );
|
|
|
|
return o_rResult;
|
|
}
|
|
|
|
::std::vector< B2DRange >& computeSetDifference( ::std::vector< B2DRange >& o_rResult,
|
|
const B2DRange& rFirst,
|
|
const B2DRange& rSecond )
|
|
{
|
|
doComputeSetDifference( o_rResult, rFirst, rSecond );
|
|
|
|
return o_rResult;
|
|
}
|
|
|
|
::std::vector< B2IBox >& computeSetDifference( ::std::vector< B2IBox >& o_rResult,
|
|
const B2IBox& rFirst,
|
|
const B2IBox& rSecond )
|
|
{
|
|
doComputeSetDifference( o_rResult, rFirst, rSecond );
|
|
|
|
return o_rResult;
|
|
}
|
|
|
|
} // end of namespace basegfx
|
|
|
|
// eof
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|