| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_sc.hxx" |
| |
| |
| |
| // INCLUDE --------------------------------------------------------------- |
| |
| #include <vcl/outdev.hxx> |
| |
| #include "drawutil.hxx" |
| #include "document.hxx" |
| #include "global.hxx" |
| #include "viewdata.hxx" |
| |
| // STATIC DATA ----------------------------------------------------------- |
| |
| // ----------------------------------------------------------------------- |
| |
| |
| inline Fraction MakeFraction( long nA, long nB ) |
| { |
| return ( nA && nB ) ? Fraction(nA,nB) : Fraction(1,1); |
| } |
| |
| void ScDrawUtil::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 ) |
| { |
| long nPixelX = 0; |
| long nTwipsX = 0; |
| long nPixelY = 0; |
| long nTwipsY = 0; |
| for (SCCOL i=nStartCol; i<nEndCol; i++) |
| { |
| sal_uInt16 nWidth = pDoc->GetColWidth(i,nTab); |
| nTwipsX += (long) nWidth; |
| nPixelX += ScViewData::ToPixel( nWidth, nPPTX ); |
| } |
| |
| for (SCROW nRow = nStartRow; nRow <= nEndRow-1; ++nRow) |
| { |
| SCROW nLastRow = nRow; |
| if (pDoc->RowHidden(nRow, nTab, NULL, &nLastRow)) |
| { |
| nRow = nLastRow; |
| continue; |
| } |
| |
| sal_uInt16 nHeight = pDoc->GetRowHeight(nRow, nTab); |
| nTwipsY += static_cast<long>(nHeight); |
| nPixelY += ScViewData::ToPixel(nHeight, nPPTY); |
| } |
| |
| // #i116848# To get a large-enough number for PixelToLogic, multiply the integer values |
| // instead of using a larger number of rows |
| if ( nTwipsY ) |
| { |
| long nMultiply = 2000000 / nTwipsY; |
| if ( nMultiply > 1 ) |
| { |
| nTwipsY *= nMultiply; |
| nPixelY *= nMultiply; |
| } |
| } |
| |
| MapMode aHMMMode( MAP_100TH_MM, Point(), rZoomX, rZoomY ); |
| Point aPixelLog = pDev->PixelToLogic( Point( nPixelX,nPixelY ), aHMMMode ); |
| |
| // Fraction(double) ctor can be used here (and avoid overflows of PixelLog * Zoom) |
| // because ReduceInaccurate is called later anyway. |
| |
| if ( aPixelLog.X() && nTwipsX ) |
| rScaleX = Fraction( ((double)aPixelLog.X()) * |
| ((double)rZoomX.GetNumerator()) / |
| ((double)nTwipsX) / |
| ((double)HMM_PER_TWIPS) / |
| ((double)rZoomX.GetDenominator()) ); |
| else |
| rScaleX = Fraction( 1, 1 ); |
| |
| if ( aPixelLog.Y() && nTwipsY ) |
| rScaleY = Fraction( ((double)aPixelLog.Y()) * |
| ((double)rZoomY.GetNumerator()) / |
| ((double)nTwipsY) / |
| ((double)HMM_PER_TWIPS) / |
| ((double)rZoomY.GetDenominator()) ); |
| else |
| rScaleY = Fraction( 1, 1 ); |
| |
| // 25 bits of accuracy are needed to always hit the right part of |
| // cells in the last rows (was 17 before 1M rows). |
| rScaleX.ReduceInaccurate( 25 ); |
| rScaleY.ReduceInaccurate( 25 ); |
| } |
| |
| |
| |
| |