/************************************************************************* * * $RCSfile: mtftools.cxx,v $ * * $Revision: 1.6 $ * * last change: $Author: obo $ $Date: 2005-04-18 09:59:48 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses * * - GNU Lesser General Public License Version 2.1 * - Sun Industry Standards Source License Version 1.1 * * Sun Microsystems Inc., October, 2000 * * GNU Lesser General Public License Version 2.1 * ============================================= * Copyright 2000 by Sun Microsystems, Inc. * 901 San Antonio Road, Palo Alto, CA 94303, USA * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License version 2.1, as published by the Free Software Foundation. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * * Sun Industry Standards Source License Version 1.1 * ================================================= * The contents of this file are subject to the Sun Industry Standards * Source License Version 1.1 (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.openoffice.org/license.html. * * Software provided under this License is provided on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. * See the License for the specific provisions governing your rights and * obligations concerning the Software. * * The Initial Developer of the Original Code is: Sun Microsystems, Inc. * * Copyright: 2000 by Sun Microsystems, Inc. * * All Rights Reserved. * * Contributor(s): _______________________________________ * * ************************************************************************/ #include #include #include #include #include #ifndef _COM_SUN_STAR_RENDERING_RENDERSTATE_HPP__ #include #endif #ifndef _COM_SUN_STAR_RENDERING_XCANVAS_HPP__ #include #endif #ifndef _BGFX_NUMERIC_FTOOLS_HXX #include #endif #ifndef _BGFX_TOOLS_CANVASTOOLS_HXX #include #endif #ifndef _BGFX_POLYGON_B2DPOLYGONTOOLS_HXX #include #endif #ifndef _BGFX_POLYGON_B2DPOLYGON_HXX #include #endif #ifndef _BGFX_RANGE_B2DRECTANGLE_HXX #include #endif #ifndef _BGFX_VECTOR_B2DVECTOR_HXX #include #endif #ifndef _CANVAS_CANVASTOOLS_HXX #include #endif #ifndef _SV_GDIMTF_HXX #include #endif #ifndef _SV_METAACT_HXX #include #endif #ifndef _SV_VIRDEV_HXX #include #endif #ifndef _SV_METRIC_HXX #include #endif #ifndef _TL_POLY_HXX #include #endif using namespace ::com::sun::star; namespace cppcanvas { namespace tools { void initRenderState( rendering::RenderState& renderState, const ::cppcanvas::internal::OutDevState& outdevState ) { ::canvas::tools::initRenderState( renderState ); ::canvas::tools::setRenderStateTransform( renderState, outdevState.transform ); renderState.Clip = outdevState.xClipPoly; } ::Size getBaselineOffset( const ::cppcanvas::internal::OutDevState& outdevState, const VirtualDevice& rVDev ) { const ::FontMetric& aMetric = rVDev.GetFontMetric(); // calc offset for text output, the XCanvas always renders // baseline offset. switch( outdevState.textReferencePoint ) { case ALIGN_TOP: return ::Size( 0, aMetric.GetIntLeading() + aMetric.GetAscent() ); case ALIGN_BASELINE: return ::Size( 0, 0 ); case ALIGN_BOTTOM: return ::Size( 0, -aMetric.GetDescent() ); default: ENSURE_AND_THROW( false, "tools::getBaselineOffset(): Unexpected TextAlign value" ); } } ::basegfx::B2DHomMatrix& calcLogic2PixelLinearTransform( ::basegfx::B2DHomMatrix& o_rMatrix, const VirtualDevice& rVDev ) { // select size value in the middle of the available range, // to have headroom both when map mode scales up, and when // it scales down. const ::Size aSizeLogic( 0x00010000L, 0x00010000L ); const ::Size aSizePixel( rVDev.LogicToPixel( aSizeLogic ) ); o_rMatrix.identity(); o_rMatrix.scale( aSizePixel.Width() / (double)aSizeLogic.Width(), aSizePixel.Height() / (double)aSizeLogic.Height() ); return o_rMatrix; } bool modifyClip( rendering::RenderState& o_rRenderState, const struct ::cppcanvas::internal::OutDevState& rOutdevState, const CanvasSharedPtr& rCanvas, const ::basegfx::B2DPoint& rOffset, const ::basegfx::B2DVector* pScaling ) { const ::Point aEmptyPoint; const bool bOffsetting( !rOffset.equalZero() ); const bool bScaling( pScaling && pScaling->getX() != 1.0 && pScaling->getY() != 1.0 ); if( !bOffsetting && !bScaling ) return false; // nothing to do if( rOutdevState.clip.count() ) { // general polygon case ::basegfx::B2DPolyPolygon aLocalClip( rOutdevState.clip ); ::basegfx::B2DHomMatrix aTransform; if( bOffsetting ) aTransform.translate( -rOffset.getX(), -rOffset.getY() ); if( bScaling ) aTransform.scale( 1.0/pScaling->getX(), 1.0/pScaling->getY() ); aLocalClip.transform( aTransform ); o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), aLocalClip ); return true; } else if( !rOutdevState.clipRect.IsEmpty() ) { // simple rect case const ::Rectangle aLocalClipRect( rOutdevState.clipRect ); if( bScaling ) { // scale and offset - do it on the fly, have to // convert to float anyway. o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), ::basegfx::B2DPolyPolygon( ::basegfx::tools::createPolygonFromRect( ::basegfx::B2DRectangle( (double)(aLocalClipRect.Left() - rOffset.getX())/pScaling->getX(), (double)(aLocalClipRect.Top() - rOffset.getY())/pScaling->getY(), (double)(aLocalClipRect.Right() - rOffset.getX())/pScaling->getX(), (double)(aLocalClipRect.Bottom() - rOffset.getY())/pScaling->getY() ) ) ) ); } else { // offset only - do it on the fly, have to convert // to float anyway. o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), ::basegfx::B2DPolyPolygon( ::basegfx::tools::createPolygonFromRect( ::basegfx::B2DRectangle( aLocalClipRect.Left() - rOffset.getX(), aLocalClipRect.Top() - rOffset.getY(), aLocalClipRect.Right() - rOffset.getX(), aLocalClipRect.Bottom() - rOffset.getY() ) ) ) ); } return true; } // empty clip, nothing to do return false; } bool modifyClip( rendering::RenderState& o_rRenderState, const struct ::cppcanvas::internal::OutDevState& rOutdevState, const CanvasSharedPtr& rCanvas, const ::Point& rOffset, const ::basegfx::B2DVector* pScaling ) { return modifyClip( o_rRenderState, rOutdevState, rCanvas, ::basegfx::B2DPoint( rOffset.X(), rOffset.Y() ), pScaling ); } bool modifyClip( rendering::RenderState& o_rRenderState, const struct ::cppcanvas::internal::OutDevState& rOutdevState, const CanvasSharedPtr& rCanvas, const ::basegfx::B2DHomMatrix& rTransform ) { if( !rTransform.isIdentity() || !rTransform.isInvertible() ) return false; // nothing to do ::basegfx::B2DPolyPolygon aLocalClip; if( rOutdevState.clip.count() ) { aLocalClip = rOutdevState.clip; } else if( !rOutdevState.clipRect.IsEmpty() ) { const ::Rectangle aLocalClipRect( rOutdevState.clipRect ); aLocalClip = ::basegfx::B2DPolyPolygon( ::basegfx::tools::createPolygonFromRect( ::basegfx::B2DRectangle( aLocalClipRect.Left(), aLocalClipRect.Top(), aLocalClipRect.Right(), aLocalClipRect.Bottom() ) ) ); } else { // empty clip, nothing to do return false; } // invert transformation and modify ::basegfx::B2DHomMatrix aLocalTransform( rTransform ); aLocalTransform.invert(); aLocalClip.transform( aLocalTransform ); o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), aLocalClip ); return true; } // create underline/strikeout line info struct TextLineInfo createTextLineInfo( const ::VirtualDevice& rVDev, const ::cppcanvas::internal::OutDevState& rState ) { const BOOL bOldMode( rVDev.IsMapModeEnabled() ); // will restore map mode below const_cast< ::VirtualDevice& >(rVDev).EnableMapMode( FALSE ); const ::FontMetric aMetric = rVDev.GetFontMetric(); TextLineInfo aTextInfo( (aMetric.GetDescent() + 2) / 4.0, aMetric.GetDescent() / 2.0, (aMetric.GetIntLeading() - aMetric.GetAscent()) / 3.0, rState.textUnderlineStyle, rState.textStrikeoutStyle ); const_cast< ::VirtualDevice& >(rVDev).EnableMapMode( bOldMode ); return aTextInfo; } namespace { void appendRect( ::basegfx::B2DPolyPolygon& o_rPoly, const ::basegfx::B2DPoint& rStartPos, const double nX1, const double nY1, const double nX2, const double nY2 ) { const double x( rStartPos.getX() ); const double y( rStartPos.getY() ); o_rPoly.append( ::basegfx::tools::createPolygonFromRect( ::basegfx::B2DRectangle( x + nX1, y + nY1, x + nX2, y + nY2 ) ) ); } void appendRect( ::basegfx::B2DPolyPolygon& o_rPoly, const double nX1, const double nY1, const double nX2, const double nY2 ) { o_rPoly.append( ::basegfx::tools::createPolygonFromRect( ::basegfx::B2DRectangle( nX1, nY1, nX2, nY2 ) ) ); } void appendDashes( ::basegfx::B2DPolyPolygon& o_rPoly, const double nX, const double nY, const double nLineWidth, const double nLineHeight, const double nDashWidth, const double nDashSkip ) { const sal_Int32 nNumLoops( static_cast< sal_Int32 >( ::std::max( 1.0, nLineWidth / nDashSkip ) + .5) ); double x = nX; for( sal_Int32 i=0; i