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Diffstat (limited to 'tools/source/generic/gen.cxx')
| -rw-r--r-- | tools/source/generic/gen.cxx | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/tools/source/generic/gen.cxx b/tools/source/generic/gen.cxx new file mode 100644 index 000000000..27120d6ab --- /dev/null +++ b/tools/source/generic/gen.cxx @@ -0,0 +1,240 @@ +/* -*- 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 . + */ + +#include <sal/config.h> +#include <rtl/string.hxx> + +#include <algorithm> +#include <tuple> +#include <o3tl/hash_combine.hxx> +#include <o3tl/safeint.hxx> +#include <tools/gen.hxx> + +OString Pair::toString() const +{ + // Note that this is not just used for debugging output but the + // format is parsed by external code (passed in callbacks to + // LibreOfficeKit clients). So don't change. + return OString::number(A()) + ", " + OString::number(B()); +} + +size_t Pair::GetHashValue() const +{ + size_t hash = 0; + o3tl::hash_combine( hash, nA ); + o3tl::hash_combine( hash, nB ); + return hash; +} + +void tools::Rectangle::SetSize( const Size& rSize ) +{ + if ( rSize.Width() < 0 ) + nRight = nLeft + rSize.Width() +1; + else if ( rSize.Width() > 0 ) + nRight = nLeft + rSize.Width() -1; + else + SetWidthEmpty(); + + if ( rSize.Height() < 0 ) + nBottom = nTop + rSize.Height() +1; + else if ( rSize.Height() > 0 ) + nBottom = nTop + rSize.Height() -1; + else + SetHeightEmpty(); +} + +void tools::Rectangle::SaturatingSetSize(const Size& rSize) +{ + if (rSize.Width() < 0) + nRight = o3tl::saturating_add(nLeft, (rSize.Width() + 1)); + else if ( rSize.Width() > 0 ) + nRight = o3tl::saturating_add(nLeft, (rSize.Width() - 1)); + else + SetWidthEmpty(); + + if ( rSize.Height() < 0 ) + nBottom = o3tl::saturating_add(nTop, (rSize.Height() + 1)); + else if ( rSize.Height() > 0 ) + nBottom = o3tl::saturating_add(nTop, (rSize.Height() - 1)); + else + SetHeightEmpty(); +} + +void tools::Rectangle::SaturatingSetPosX(tools::Long x) +{ + if (!IsWidthEmpty()) + nRight = o3tl::saturating_add(nRight, x - nLeft); + nLeft = x; +} + +void tools::Rectangle::SaturatingSetPosY(tools::Long y) +{ + if (!IsHeightEmpty()) + nBottom = o3tl::saturating_add(nBottom, y - nTop); + nTop = y; +} + +tools::Rectangle& tools::Rectangle::Union( const tools::Rectangle& rRect ) +{ + if ( rRect.IsEmpty() ) + return *this; + + if ( IsEmpty() ) + *this = rRect; + else + { + std::tie(nLeft, nRight) = std::minmax({ nLeft, rRect.nLeft, nRight, rRect.nRight }); + std::tie(nTop, nBottom) = std::minmax({ nTop, rRect.nTop, nBottom, rRect.nBottom }); + } + + return *this; +} + +tools::Rectangle& tools::Rectangle::Intersection( const tools::Rectangle& rRect ) +{ + if ( IsEmpty() ) + return *this; + if ( rRect.IsEmpty() ) + { + *this = tools::Rectangle(); + return *this; + } + + // Justify rectangle + tools::Rectangle aTmpRect( rRect ); + Justify(); + aTmpRect.Justify(); + + // Perform intersection + nLeft = std::max( nLeft, aTmpRect.nLeft ); + nRight = std::min( nRight, aTmpRect.nRight ); + nTop = std::max( nTop, aTmpRect.nTop ); + nBottom= std::min( nBottom, aTmpRect.nBottom ); + + // Determine if intersection is empty + if ( nRight < nLeft || nBottom < nTop ) + *this = tools::Rectangle(); + + return *this; +} + +void tools::Rectangle::Justify() +{ + if ((nRight < nLeft) && (!IsWidthEmpty())) + { + std::swap(nLeft, nRight); + } + + if ((nBottom < nTop) && (!IsHeightEmpty())) + { + std::swap(nBottom, nTop); + } +} + +bool tools::Rectangle::Contains( const Point& rPoint ) const +{ + if ( IsEmpty() ) + return false; + + if ( nLeft <= nRight ) + { + if ( (rPoint.X() < nLeft) || (rPoint.X() > nRight) ) + return false; + } + else + { + if ( (rPoint.X() > nLeft) || (rPoint.X() < nRight) ) + return false; + } + if ( nTop <= nBottom ) + { + if ( (rPoint.Y() < nTop) || (rPoint.Y() > nBottom) ) + return false; + } + else + { + if ( (rPoint.Y() > nTop) || (rPoint.Y() < nBottom) ) + return false; + } + return true; +} + +bool tools::Rectangle::Contains( const tools::Rectangle& rRect ) const +{ + return Contains( rRect.TopLeft() ) && Contains( rRect.BottomRight() ); +} + +bool tools::Rectangle::Overlaps( const tools::Rectangle& rRect ) const +{ + // If there's no intersection, they don't overlap + return !GetIntersection( rRect ).IsEmpty(); +} + +OString tools::Rectangle::toString() const +{ + // Note that this is not just used for debugging output but the + // format is parsed by external code (passed in callbacks to + // LibreOfficeKit clients). So don't change. + return OString::number(Left()) + ", " + OString::number(Top()) + ", " + OString::number(getWidth()) + ", " + OString::number(getHeight()); +} + +void tools::Rectangle::expand(tools::Long nExpandBy) +{ + AdjustLeft(-nExpandBy); + AdjustTop(-nExpandBy); + AdjustRight(nExpandBy); + AdjustBottom(nExpandBy); +} + +void tools::Rectangle::shrink(tools::Long nShrinkBy) +{ + nLeft += nShrinkBy; + nTop += nShrinkBy; + if (!IsWidthEmpty()) + nRight -= nShrinkBy; + if (!IsHeightEmpty()) + nBottom -= nShrinkBy; +} + +tools::Long tools::Rectangle::AdjustRight(tools::Long nHorzMoveDelta) +{ + if (IsWidthEmpty()) + nRight = nLeft + nHorzMoveDelta - 1; + else + nRight += nHorzMoveDelta; + return nRight; +} + +tools::Long tools::Rectangle::AdjustBottom( tools::Long nVertMoveDelta ) +{ + if (IsHeightEmpty()) + nBottom = nTop + nVertMoveDelta - 1; + else + nBottom += nVertMoveDelta; + return nBottom; +} + +static_assert( std::is_trivially_copyable< Pair >::value ); +static_assert( std::is_trivially_copyable< Point >::value ); +static_assert( std::is_trivially_copyable< Size >::value ); +static_assert( std::is_trivially_copyable< Range >::value ); +static_assert( std::is_trivially_copyable< Selection >::value ); +static_assert( std::is_trivially_copyable< tools::Rectangle >::value ); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |