LCOV - code coverage report
Current view: top level - sc/source/ui/view - drawutil.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 30 32 93.8 %
Date: 2012-08-25 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 24 50 48.0 %

           Branch data     Line data    Source code
       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*************************************************************************
       3                 :            :  *
       4                 :            :  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       5                 :            :  *
       6                 :            :  * Copyright 2000, 2010 Oracle and/or its affiliates.
       7                 :            :  *
       8                 :            :  * OpenOffice.org - a multi-platform office productivity suite
       9                 :            :  *
      10                 :            :  * This file is part of OpenOffice.org.
      11                 :            :  *
      12                 :            :  * OpenOffice.org is free software: you can redistribute it and/or modify
      13                 :            :  * it under the terms of the GNU Lesser General Public License version 3
      14                 :            :  * only, as published by the Free Software Foundation.
      15                 :            :  *
      16                 :            :  * OpenOffice.org is distributed in the hope that it will be useful,
      17                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      18                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      19                 :            :  * GNU Lesser General Public License version 3 for more details
      20                 :            :  * (a copy is included in the LICENSE file that accompanied this code).
      21                 :            :  *
      22                 :            :  * You should have received a copy of the GNU Lesser General Public License
      23                 :            :  * version 3 along with OpenOffice.org.  If not, see
      24                 :            :  * <http://www.openoffice.org/license.html>
      25                 :            :  * for a copy of the LGPLv3 License.
      26                 :            :  *
      27                 :            :  ************************************************************************/
      28                 :            : 
      29                 :            : #include <vcl/outdev.hxx>
      30                 :            : 
      31                 :            : #include "drawutil.hxx"
      32                 :            : #include "document.hxx"
      33                 :            : #include "global.hxx"
      34                 :            : #include "viewdata.hxx"
      35                 :            : 
      36                 :            : // STATIC DATA -----------------------------------------------------------
      37                 :            : 
      38                 :            : // -----------------------------------------------------------------------
      39                 :            : 
      40                 :            : 
      41                 :            : inline Fraction MakeFraction( long nA, long nB )
      42                 :            : {
      43                 :            :     return ( nA && nB ) ? Fraction(nA,nB) : Fraction(1,1);
      44                 :            : }
      45                 :            : 
      46                 :       1083 : void ScDrawUtil::CalcScale( ScDocument* pDoc, SCTAB nTab,
      47                 :            :                             SCCOL nStartCol, SCROW nStartRow, SCCOL nEndCol, SCROW nEndRow,
      48                 :            :                             OutputDevice* pDev,
      49                 :            :                             const Fraction& rZoomX, const Fraction& rZoomY,
      50                 :            :                             double nPPTX, double nPPTY,
      51                 :            :                             Fraction& rScaleX, Fraction& rScaleY )
      52                 :            : {
      53                 :       1083 :     long nPixelX = 0;
      54                 :       1083 :     long nTwipsX = 0;
      55                 :       1083 :     long nPixelY = 0;
      56                 :       1083 :     long nTwipsY = 0;
      57         [ +  + ]:      22743 :     for (SCCOL i=nStartCol; i<nEndCol; i++)
      58                 :            :     {
      59         [ +  - ]:      21660 :         sal_uInt16 nWidth = pDoc->GetColWidth(i,nTab);
      60                 :      21660 :         nTwipsX += (long) nWidth;
      61                 :      21660 :         nPixelX += ScViewData::ToPixel( nWidth, nPPTX );
      62                 :            :     }
      63                 :            : 
      64         [ +  + ]:    1006395 :     for (SCROW nRow = nStartRow; nRow <= nEndRow-1; ++nRow)
      65                 :            :     {
      66                 :    1005312 :         SCROW nLastRow = nRow;
      67 [ +  - ][ +  + ]:    1005312 :         if (pDoc->RowHidden(nRow, nTab, NULL, &nLastRow))
      68                 :            :         {
      69                 :         40 :             nRow = nLastRow;
      70                 :         40 :             continue;
      71                 :            :         }
      72                 :            : 
      73         [ +  - ]:    1005272 :         sal_uInt16 nHeight = pDoc->GetRowHeight(nRow, nTab);
      74                 :    1005272 :         nTwipsY += static_cast<long>(nHeight);
      75                 :    1005272 :         nPixelY += ScViewData::ToPixel(nHeight, nPPTY);
      76                 :            :     }
      77                 :            : 
      78         [ +  - ]:       1083 :     MapMode aHMMMode( MAP_100TH_MM, Point(), rZoomX, rZoomY );
      79         [ +  - ]:       1083 :     Point aPixelLog = pDev->PixelToLogic( Point( nPixelX,nPixelY ), aHMMMode );
      80                 :            : 
      81                 :            :     //  Fraction(double) ctor can be used here (and avoid overflows of PixelLog * Zoom)
      82                 :            :     //  because ReduceInaccurate is called later anyway.
      83                 :            : 
      84 [ +  - ][ +  - ]:       1083 :     if ( aPixelLog.X() && nTwipsX )
                 [ +  - ]
      85                 :       1083 :         rScaleX = Fraction( ((double)aPixelLog.X()) *
      86                 :       1083 :                             ((double)rZoomX.GetNumerator()) /
      87                 :            :                             ((double)nTwipsX) /
      88                 :            :                             ((double)HMM_PER_TWIPS) /
      89 [ +  - ][ +  - ]:       1083 :                             ((double)rZoomX.GetDenominator()) );
      90                 :            :     else
      91 [ #  # ][ #  # ]:          0 :         rScaleX = Fraction( 1, 1 );
      92                 :            : 
      93 [ +  - ][ +  - ]:       1083 :     if ( aPixelLog.Y() && nTwipsY )
                 [ +  - ]
      94                 :       1083 :         rScaleY = Fraction( ((double)aPixelLog.Y()) *
      95                 :       1083 :                             ((double)rZoomY.GetNumerator()) /
      96                 :            :                             ((double)nTwipsY) /
      97                 :            :                             ((double)HMM_PER_TWIPS) /
      98 [ +  - ][ +  - ]:       1083 :                             ((double)rZoomY.GetDenominator()) );
      99                 :            :     else
     100 [ #  # ][ #  # ]:          0 :         rScaleY = Fraction( 1, 1 );
     101                 :            : 
     102                 :            :     //  25 bits of accuracy are needed to always hit the right part of
     103                 :            :     //  cells in the last rows (was 17 before 1M rows).
     104         [ +  - ]:       1083 :     rScaleX.ReduceInaccurate( 25 );
     105 [ +  - ][ +  - ]:       1083 :     rScaleY.ReduceInaccurate( 25 );
     106                 :       1083 : }
     107                 :            : 
     108                 :            : 
     109                 :            : 
     110                 :            : 
     111                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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