1*b3f79822SAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3*b3f79822SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4*b3f79822SAndrew Rist * or more contributor license agreements. See the NOTICE file
5*b3f79822SAndrew Rist * distributed with this work for additional information
6*b3f79822SAndrew Rist * regarding copyright ownership. The ASF licenses this file
7*b3f79822SAndrew Rist * to you under the Apache License, Version 2.0 (the
8*b3f79822SAndrew Rist * "License"); you may not use this file except in compliance
9*b3f79822SAndrew Rist * with the License. You may obtain a copy of the License at
10*b3f79822SAndrew Rist *
11*b3f79822SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12*b3f79822SAndrew Rist *
13*b3f79822SAndrew Rist * Unless required by applicable law or agreed to in writing,
14*b3f79822SAndrew Rist * software distributed under the License is distributed on an
15*b3f79822SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b3f79822SAndrew Rist * KIND, either express or implied. See the License for the
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19*b3f79822SAndrew Rist *
20*b3f79822SAndrew Rist *************************************************************/
21*b3f79822SAndrew Rist
22*b3f79822SAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
25cdf0e10cSrcweir #include "precompiled_sc.hxx"
26cdf0e10cSrcweir
27cdf0e10cSrcweir
28cdf0e10cSrcweir
29cdf0e10cSrcweir // INCLUDE ---------------------------------------------------------------
30cdf0e10cSrcweir
31cdf0e10cSrcweir #include <vcl/outdev.hxx>
32cdf0e10cSrcweir
33cdf0e10cSrcweir #include "drawutil.hxx"
34cdf0e10cSrcweir #include "document.hxx"
35cdf0e10cSrcweir #include "global.hxx"
36cdf0e10cSrcweir #include "viewdata.hxx"
37cdf0e10cSrcweir
38cdf0e10cSrcweir // STATIC DATA -----------------------------------------------------------
39cdf0e10cSrcweir
40cdf0e10cSrcweir // -----------------------------------------------------------------------
41cdf0e10cSrcweir
42cdf0e10cSrcweir
MakeFraction(long nA,long nB)43cdf0e10cSrcweir inline Fraction MakeFraction( long nA, long nB )
44cdf0e10cSrcweir {
45cdf0e10cSrcweir return ( nA && nB ) ? Fraction(nA,nB) : Fraction(1,1);
46cdf0e10cSrcweir }
47cdf0e10cSrcweir
CalcScale(ScDocument * pDoc,SCTAB nTab,SCCOL nStartCol,SCROW nStartRow,SCCOL nEndCol,SCROW nEndRow,OutputDevice * pDev,const Fraction & rZoomX,const Fraction & rZoomY,double nPPTX,double nPPTY,Fraction & rScaleX,Fraction & rScaleY)48cdf0e10cSrcweir void ScDrawUtil::CalcScale( ScDocument* pDoc, SCTAB nTab,
49cdf0e10cSrcweir SCCOL nStartCol, SCROW nStartRow, SCCOL nEndCol, SCROW nEndRow,
50cdf0e10cSrcweir OutputDevice* pDev,
51cdf0e10cSrcweir const Fraction& rZoomX, const Fraction& rZoomY,
52cdf0e10cSrcweir double nPPTX, double nPPTY,
53cdf0e10cSrcweir Fraction& rScaleX, Fraction& rScaleY )
54cdf0e10cSrcweir {
55cdf0e10cSrcweir long nPixelX = 0;
56cdf0e10cSrcweir long nTwipsX = 0;
57cdf0e10cSrcweir long nPixelY = 0;
58cdf0e10cSrcweir long nTwipsY = 0;
59cdf0e10cSrcweir for (SCCOL i=nStartCol; i<nEndCol; i++)
60cdf0e10cSrcweir {
61cdf0e10cSrcweir sal_uInt16 nWidth = pDoc->GetColWidth(i,nTab);
62cdf0e10cSrcweir nTwipsX += (long) nWidth;
63cdf0e10cSrcweir nPixelX += ScViewData::ToPixel( nWidth, nPPTX );
64cdf0e10cSrcweir }
65cdf0e10cSrcweir
66cdf0e10cSrcweir for (SCROW nRow = nStartRow; nRow <= nEndRow-1; ++nRow)
67cdf0e10cSrcweir {
68cdf0e10cSrcweir SCROW nLastRow = nRow;
69cdf0e10cSrcweir if (pDoc->RowHidden(nRow, nTab, NULL, &nLastRow))
70cdf0e10cSrcweir {
71cdf0e10cSrcweir nRow = nLastRow;
72cdf0e10cSrcweir continue;
73cdf0e10cSrcweir }
74cdf0e10cSrcweir
75cdf0e10cSrcweir sal_uInt16 nHeight = pDoc->GetRowHeight(nRow, nTab);
76cdf0e10cSrcweir nTwipsY += static_cast<long>(nHeight);
77cdf0e10cSrcweir nPixelY += ScViewData::ToPixel(nHeight, nPPTY);
78cdf0e10cSrcweir }
79cdf0e10cSrcweir
80cdf0e10cSrcweir // #i116848# To get a large-enough number for PixelToLogic, multiply the integer values
81cdf0e10cSrcweir // instead of using a larger number of rows
82d70dcc85SMichael Stahl if ( nTwipsY )
83cdf0e10cSrcweir {
84d70dcc85SMichael Stahl long nMultiply = 2000000 / nTwipsY;
85d70dcc85SMichael Stahl if ( nMultiply > 1 )
86d70dcc85SMichael Stahl {
87d70dcc85SMichael Stahl nTwipsY *= nMultiply;
88d70dcc85SMichael Stahl nPixelY *= nMultiply;
89d70dcc85SMichael Stahl }
90cdf0e10cSrcweir }
91cdf0e10cSrcweir
92cdf0e10cSrcweir MapMode aHMMMode( MAP_100TH_MM, Point(), rZoomX, rZoomY );
93cdf0e10cSrcweir Point aPixelLog = pDev->PixelToLogic( Point( nPixelX,nPixelY ), aHMMMode );
94cdf0e10cSrcweir
95cdf0e10cSrcweir // Fraction(double) ctor can be used here (and avoid overflows of PixelLog * Zoom)
96cdf0e10cSrcweir // because ReduceInaccurate is called later anyway.
97cdf0e10cSrcweir
98cdf0e10cSrcweir if ( aPixelLog.X() && nTwipsX )
99cdf0e10cSrcweir rScaleX = Fraction( ((double)aPixelLog.X()) *
100cdf0e10cSrcweir ((double)rZoomX.GetNumerator()) /
101cdf0e10cSrcweir ((double)nTwipsX) /
102cdf0e10cSrcweir ((double)HMM_PER_TWIPS) /
103cdf0e10cSrcweir ((double)rZoomX.GetDenominator()) );
104cdf0e10cSrcweir else
105cdf0e10cSrcweir rScaleX = Fraction( 1, 1 );
106cdf0e10cSrcweir
107cdf0e10cSrcweir if ( aPixelLog.Y() && nTwipsY )
108cdf0e10cSrcweir rScaleY = Fraction( ((double)aPixelLog.Y()) *
109cdf0e10cSrcweir ((double)rZoomY.GetNumerator()) /
110cdf0e10cSrcweir ((double)nTwipsY) /
111cdf0e10cSrcweir ((double)HMM_PER_TWIPS) /
112cdf0e10cSrcweir ((double)rZoomY.GetDenominator()) );
113cdf0e10cSrcweir else
114cdf0e10cSrcweir rScaleY = Fraction( 1, 1 );
115cdf0e10cSrcweir
116cdf0e10cSrcweir // 25 bits of accuracy are needed to always hit the right part of
117cdf0e10cSrcweir // cells in the last rows (was 17 before 1M rows).
118cdf0e10cSrcweir rScaleX.ReduceInaccurate( 25 );
119cdf0e10cSrcweir rScaleY.ReduceInaccurate( 25 );
120cdf0e10cSrcweir }
121cdf0e10cSrcweir
122cdf0e10cSrcweir
123cdf0e10cSrcweir
124cdf0e10cSrcweir
125