1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_slideshow.hxx" 30 31 #include <canvas/debug.hxx> 32 #include <basegfx/matrix/b2dhommatrix.hxx> 33 #include <basegfx/point/b2dpoint.hxx> 34 #include <basegfx/numeric/ftools.hxx> 35 #include <basegfx/matrix/b2dhommatrixtools.hxx> 36 #include "clockwipe.hxx" 37 38 39 namespace slideshow { 40 namespace internal { 41 42 ::basegfx::B2DPolygon ClockWipe::calcCenteredClock( double t, double e ) 43 { 44 ::basegfx::B2DPolygon poly; 45 ::basegfx::B2DHomMatrix aTransform; 46 aTransform.rotate( t * 2.0 * M_PI ); 47 const double MAX_EDGE = 2.0; 48 ::basegfx::B2DPoint p( 0.0, -MAX_EDGE ); 49 p *= aTransform; 50 poly.append( p ); 51 if (t >= 0.875) 52 poly.append( ::basegfx::B2DPoint( -e, -e ) ); 53 if (t >= 0.625) 54 poly.append( ::basegfx::B2DPoint( -e, e ) ); 55 if (t >= 0.375) 56 poly.append( ::basegfx::B2DPoint( e, e ) ); 57 if (t >= 0.125) 58 poly.append( ::basegfx::B2DPoint( e, -e ) ); 59 poly.append( ::basegfx::B2DPoint( 0.0, -e ) ); 60 poly.append( ::basegfx::B2DPoint( 0.0, 0.0 ) ); 61 poly.setClosed(true); 62 return poly; 63 } 64 65 ::basegfx::B2DPolyPolygon ClockWipe::operator () ( double t ) 66 { 67 const basegfx::B2DHomMatrix aTransform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5)); 68 ::basegfx::B2DPolygon poly( calcCenteredClock(t) ); 69 poly.transform( aTransform ); 70 return ::basegfx::B2DPolyPolygon(poly); 71 } 72 73 } 74 } 75