tools/source/generic/gen.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <sstream>
  23
  24 #include <tools/debug.hxx>
  25 #include <tools/gen.hxx>
  26 #include <tools/stream.hxx>
  27
  28 SvStream& ReadPair( SvStream& rIStream, Pair& rPair )
  29 {
  30     DBG_ASSERTWARNING( rIStream.GetVersion(), "Pair::>> - Solar-Version not set on rIStream" );
  31
  32     sal_Int32 nTmpA(0), nTmpB(0);
  33     rIStream.ReadInt32( nTmpA ).ReadInt32( nTmpB );
  34     rPair.nA = nTmpA;
  35     rPair.nB = nTmpB;
  36
  37     return rIStream;
  38 }
  39
  40 SvStream& WritePair( SvStream& rOStream, const Pair& rPair )
  41 {
  42     DBG_ASSERTWARNING( rOStream.GetVersion(), "Pair::<< - Solar-Version not set on rOStream" );
  43
  44     rOStream.WriteInt32( rPair.nA ).WriteInt32( rPair.nB );
  45
  46     return rOStream;
  47 }
  48
  49 void Rectangle::SetSize( const Size& rSize )
  50 {
  51     if ( rSize.Width() < 0 )
  52         nRight  = nLeft + rSize.Width() +1;
  53     else if ( rSize.Width() > 0 )
  54         nRight  = nLeft + rSize.Width() -1;
  55     else
  56         nRight = RECT_EMPTY;
  57
  58     if ( rSize.Height() < 0 )
  59         nBottom  = nTop + rSize.Height() +1;
  60     else if ( rSize.Height() > 0 )
  61         nBottom  = nTop + rSize.Height() -1;
  62     else
  63         nBottom = RECT_EMPTY;
  64 }
  65
  66 Rectangle& Rectangle::Union( const Rectangle& rRect )
  67 {
  68     if ( rRect.IsEmpty() )
  69         return *this;
  70
  71     if ( IsEmpty() )
  72         *this = rRect;
  73     else
  74     {
  75         nLeft  =  std::min( std::min( nLeft, rRect.nLeft ), std::min( nRight, rRect.nRight )   );
  76         nRight  = std::max( std::max( nLeft, rRect.nLeft ), std::max( nRight, rRect.nRight )   );
  77         nTop    = std::min( std::min( nTop, rRect.nTop ),   std::min( nBottom, rRect.nBottom ) );
  78         nBottom = std::max( std::max( nTop, rRect.nTop ),   std::max( nBottom, rRect.nBottom ) );
  79     }
  80
  81     return *this;
  82 }
  83
  84 Rectangle& Rectangle::Intersection( const Rectangle& rRect )
  85 {
  86     if ( IsEmpty() )
  87         return *this;
  88     if ( rRect.IsEmpty() )
  89     {
  90         *this = Rectangle();
  91         return *this;
  92     }
  93
  94     // Justify rectangle
  95     Rectangle aTmpRect( rRect );
  96     Justify();
  97     aTmpRect.Justify();
  98
  99     // Perform intersection
 100     nLeft  = std::max( nLeft, aTmpRect.nLeft );
 101     nRight = std::min( nRight, aTmpRect.nRight );
 102     nTop   = std::max( nTop, aTmpRect.nTop );
 103     nBottom= std::min( nBottom, aTmpRect.nBottom );
 104
 105     // Determine if intersection is empty
 106     if ( nRight < nLeft || nBottom < nTop )
 107         *this = Rectangle();
 108
 109     return *this;
 110 }
 111
 112 void Rectangle::Justify()
 113 {
 114     long nHelp;
 115
 116     if ( (nRight < nLeft) && (nRight != RECT_EMPTY) )
 117     {
 118         nHelp = nLeft;
 119         nLeft = nRight;
 120         nRight = nHelp;
 121     }
 122
 123     if ( (nBottom < nTop) && (nBottom != RECT_EMPTY) )
 124     {
 125         nHelp = nBottom;
 126         nBottom = nTop;
 127         nTop = nHelp;
 128     }
 129 }
 130
 131 bool Rectangle::IsInside( const Point& rPoint ) const
 132 {
 133     if ( IsEmpty() )
 134         return false;
 135
 136     bool bRet = true;
 137     if ( nLeft <= nRight )
 138     {
 139         if ( (rPoint.X() < nLeft) || (rPoint.X() > nRight) )
 140             bRet = false;
 141     }
 142     else
 143     {
 144         if ( (rPoint.X() > nLeft) || (rPoint.X() < nRight) )
 145             bRet = false;
 146     }
 147     if ( nTop <= nBottom )
 148     {
 149         if ( (rPoint.Y() < nTop) || (rPoint.Y() > nBottom) )
 150             bRet = false;
 151     }
 152     else
 153     {
 154         if ( (rPoint.Y() > nTop) || (rPoint.Y() < nBottom) )
 155             bRet = false;
 156     }
 157     return bRet;
 158 }
 159
 160 bool Rectangle::IsInside( const Rectangle& rRect ) const
 161 {
 162     if ( IsInside( rRect.TopLeft() ) && IsInside( rRect.BottomRight() ) )
 163         return true;
 164     else
 165         return false;
 166 }
 167
 168 bool Rectangle::IsOver( const Rectangle& rRect ) const
 169 {
 170     // If there's no intersection, they don't overlap
 171     return !GetIntersection( rRect ).IsEmpty();
 172 }
 173
 174 SvStream& ReadRectangle( SvStream& rIStream, Rectangle& rRect )
 175 {
 176     DBG_ASSERTWARNING( rIStream.GetVersion(), "Rectangle::>> - Solar-Version not set on rIStream" );
 177
 178     sal_Int32 nTmpL(0), nTmpT(0), nTmpR(0), nTmpB(0);
 179
 180     rIStream.ReadInt32( nTmpL ).ReadInt32( nTmpT ).ReadInt32( nTmpR ).ReadInt32( nTmpB );
 181
 182     rRect.nLeft = nTmpL;
 183     rRect.nTop = nTmpT;
 184     rRect.nRight = nTmpR;
 185     rRect.nBottom = nTmpB;
 186
 187     return rIStream;
 188 }
 189
 190 SvStream& WriteRectangle( SvStream& rOStream, const Rectangle& rRect )
 191 {
 192     DBG_ASSERTWARNING( rOStream.GetVersion(), "Rectangle::<< - Solar-Version not set on rOStream" );
 193
 194     rOStream.WriteInt32( rRect.nLeft )
 195             .WriteInt32( rRect.nTop )
 196             .WriteInt32( rRect.nRight )
 197             .WriteInt32( rRect.nBottom );
 198
 199     return rOStream;
 200 }
 201
 202 OString Rectangle::toString() const
 203 {
 204     std::stringstream ss;
 205     ss << getX() << ", " << getY() << ", " << getWidth() << ", " << getHeight();
 206     return ss.str().c_str();
 207 }
 208
 209 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */