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See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 29*cdf0e10cSrcweir #include "precompiled_sc.hxx" 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir 32*cdf0e10cSrcweir 33*cdf0e10cSrcweir #include <vcl/outdev.hxx> 34*cdf0e10cSrcweir 35*cdf0e10cSrcweir #include "gridmerg.hxx" 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir //------------------------------------------------------------------ 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir ScGridMerger::ScGridMerger( OutputDevice* pOutDev, long nOnePixelX, long nOnePixelY ) : 40*cdf0e10cSrcweir pDev( pOutDev ), 41*cdf0e10cSrcweir nOneX( nOnePixelX ), 42*cdf0e10cSrcweir nOneY( nOnePixelY ), 43*cdf0e10cSrcweir nCount( 0 ), 44*cdf0e10cSrcweir bVertical( sal_False ) 45*cdf0e10cSrcweir { 46*cdf0e10cSrcweir // optimize (DrawGrid) only for pixel MapMode, 47*cdf0e10cSrcweir // to avoid rounding errors 48*cdf0e10cSrcweir 49*cdf0e10cSrcweir bOptimize = ( pDev->GetMapMode().GetMapUnit() == MAP_PIXEL ); 50*cdf0e10cSrcweir } 51*cdf0e10cSrcweir 52*cdf0e10cSrcweir ScGridMerger::~ScGridMerger() 53*cdf0e10cSrcweir { 54*cdf0e10cSrcweir Flush(); 55*cdf0e10cSrcweir } 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir void ScGridMerger::AddLine( long nStart, long nEnd, long nPos ) 58*cdf0e10cSrcweir { 59*cdf0e10cSrcweir if ( nCount ) 60*cdf0e10cSrcweir { 61*cdf0e10cSrcweir // not first line - test fix position 62*cdf0e10cSrcweir // more than one previous line - test distance 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir if ( nStart != nFixStart || nEnd != nFixEnd ) 65*cdf0e10cSrcweir { 66*cdf0e10cSrcweir if ( nCount == 1 && nPos == nVarStart && 67*cdf0e10cSrcweir ( nStart == nFixEnd || 68*cdf0e10cSrcweir nStart == nFixEnd + ( bVertical ? nOneY : nOneX ) ) ) 69*cdf0e10cSrcweir { 70*cdf0e10cSrcweir // additional optimization: extend connected lines 71*cdf0e10cSrcweir // keep nCount at 1 72*cdf0e10cSrcweir nFixEnd = nEnd; 73*cdf0e10cSrcweir } 74*cdf0e10cSrcweir else 75*cdf0e10cSrcweir Flush(); 76*cdf0e10cSrcweir } 77*cdf0e10cSrcweir else if ( nCount == 1 ) 78*cdf0e10cSrcweir { 79*cdf0e10cSrcweir nVarDiff = nPos - nVarStart; 80*cdf0e10cSrcweir ++nCount; 81*cdf0e10cSrcweir } 82*cdf0e10cSrcweir else if ( nPos != nVarStart + nCount * nVarDiff ) //! keep VarEnd? 83*cdf0e10cSrcweir Flush(); 84*cdf0e10cSrcweir else 85*cdf0e10cSrcweir ++nCount; 86*cdf0e10cSrcweir } 87*cdf0e10cSrcweir 88*cdf0e10cSrcweir if ( !nCount ) 89*cdf0e10cSrcweir { 90*cdf0e10cSrcweir // first line (or flushed above) - just store 91*cdf0e10cSrcweir 92*cdf0e10cSrcweir nFixStart = nStart; 93*cdf0e10cSrcweir nFixEnd = nEnd; 94*cdf0e10cSrcweir nVarStart = nPos; 95*cdf0e10cSrcweir nVarDiff = 0; 96*cdf0e10cSrcweir nCount = 1; 97*cdf0e10cSrcweir } 98*cdf0e10cSrcweir } 99*cdf0e10cSrcweir 100*cdf0e10cSrcweir void ScGridMerger::AddHorLine( long nX1, long nX2, long nY ) 101*cdf0e10cSrcweir { 102*cdf0e10cSrcweir if ( bOptimize ) 103*cdf0e10cSrcweir { 104*cdf0e10cSrcweir if ( bVertical ) 105*cdf0e10cSrcweir { 106*cdf0e10cSrcweir Flush(); 107*cdf0e10cSrcweir bVertical = sal_False; 108*cdf0e10cSrcweir } 109*cdf0e10cSrcweir AddLine( nX1, nX2, nY ); 110*cdf0e10cSrcweir } 111*cdf0e10cSrcweir else 112*cdf0e10cSrcweir pDev->DrawLine( Point( nX1, nY ), Point( nX2, nY ) ); 113*cdf0e10cSrcweir } 114*cdf0e10cSrcweir 115*cdf0e10cSrcweir void ScGridMerger::AddVerLine( long nX, long nY1, long nY2 ) 116*cdf0e10cSrcweir { 117*cdf0e10cSrcweir if ( bOptimize ) 118*cdf0e10cSrcweir { 119*cdf0e10cSrcweir if ( !bVertical ) 120*cdf0e10cSrcweir { 121*cdf0e10cSrcweir Flush(); 122*cdf0e10cSrcweir bVertical = sal_True; 123*cdf0e10cSrcweir } 124*cdf0e10cSrcweir AddLine( nY1, nY2, nX ); 125*cdf0e10cSrcweir } 126*cdf0e10cSrcweir else 127*cdf0e10cSrcweir pDev->DrawLine( Point( nX, nY1 ), Point( nX, nY2 ) ); 128*cdf0e10cSrcweir } 129*cdf0e10cSrcweir 130*cdf0e10cSrcweir void ScGridMerger::Flush() 131*cdf0e10cSrcweir { 132*cdf0e10cSrcweir if (nCount) 133*cdf0e10cSrcweir { 134*cdf0e10cSrcweir if (bVertical) 135*cdf0e10cSrcweir { 136*cdf0e10cSrcweir if ( nCount == 1 ) 137*cdf0e10cSrcweir pDev->DrawLine( Point( nVarStart, nFixStart ), Point( nVarStart, nFixEnd ) ); 138*cdf0e10cSrcweir else 139*cdf0e10cSrcweir { 140*cdf0e10cSrcweir long nVarEnd = nVarStart + ( nCount - 1 ) * nVarDiff; 141*cdf0e10cSrcweir if ( nVarDiff < 0 ) 142*cdf0e10cSrcweir { 143*cdf0e10cSrcweir // nVarDiff is negative in RTL layout mode 144*cdf0e10cSrcweir // Change the positions so DrawGrid is called with a positive distance 145*cdf0e10cSrcweir // (nVarStart / nVarDiff can be modified, aren't used after Flush) 146*cdf0e10cSrcweir 147*cdf0e10cSrcweir nVarDiff = -nVarDiff; 148*cdf0e10cSrcweir long nTemp = nVarStart; 149*cdf0e10cSrcweir nVarStart = nVarEnd; 150*cdf0e10cSrcweir nVarEnd = nTemp; 151*cdf0e10cSrcweir } 152*cdf0e10cSrcweir pDev->DrawGrid( Rectangle( nVarStart, nFixStart, nVarEnd, nFixEnd ), 153*cdf0e10cSrcweir Size( nVarDiff, nFixEnd - nFixStart ), 154*cdf0e10cSrcweir GRID_VERTLINES ); 155*cdf0e10cSrcweir } 156*cdf0e10cSrcweir } 157*cdf0e10cSrcweir else 158*cdf0e10cSrcweir { 159*cdf0e10cSrcweir if ( nCount == 1 ) 160*cdf0e10cSrcweir pDev->DrawLine( Point( nFixStart, nVarStart ), Point( nFixEnd, nVarStart ) ); 161*cdf0e10cSrcweir else 162*cdf0e10cSrcweir { 163*cdf0e10cSrcweir long nVarEnd = nVarStart + ( nCount - 1 ) * nVarDiff; 164*cdf0e10cSrcweir pDev->DrawGrid( Rectangle( nFixStart, nVarStart, nFixEnd, nVarEnd ), 165*cdf0e10cSrcweir Size( nFixEnd - nFixStart, nVarDiff ), 166*cdf0e10cSrcweir GRID_HORZLINES ); 167*cdf0e10cSrcweir } 168*cdf0e10cSrcweir } 169*cdf0e10cSrcweir nCount = 0; 170*cdf0e10cSrcweir } 171*cdf0e10cSrcweir } 172*cdf0e10cSrcweir 173*cdf0e10cSrcweir 174*cdf0e10cSrcweir 175