1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_slideshow.hxx"
26
27 #include <canvas/debug.hxx>
28 #include <basegfx/matrix/b2dhommatrix.hxx>
29 #include <basegfx/point/b2dpoint.hxx>
30 #include <basegfx/numeric/ftools.hxx>
31 #include <basegfx/matrix/b2dhommatrixtools.hxx>
32 #include "clockwipe.hxx"
33
34
35 namespace slideshow {
36 namespace internal {
37
calcCenteredClock(double t,double e)38 ::basegfx::B2DPolygon ClockWipe::calcCenteredClock( double t, double e )
39 {
40 ::basegfx::B2DPolygon poly;
41 ::basegfx::B2DHomMatrix aTransform;
42 aTransform.rotate( t * 2.0 * M_PI );
43 const double MAX_EDGE = 2.0;
44 ::basegfx::B2DPoint p( 0.0, -MAX_EDGE );
45 p *= aTransform;
46 poly.append( p );
47 if (t >= 0.875)
48 poly.append( ::basegfx::B2DPoint( -e, -e ) );
49 if (t >= 0.625)
50 poly.append( ::basegfx::B2DPoint( -e, e ) );
51 if (t >= 0.375)
52 poly.append( ::basegfx::B2DPoint( e, e ) );
53 if (t >= 0.125)
54 poly.append( ::basegfx::B2DPoint( e, -e ) );
55 poly.append( ::basegfx::B2DPoint( 0.0, -e ) );
56 poly.append( ::basegfx::B2DPoint( 0.0, 0.0 ) );
57 poly.setClosed(true);
58 return poly;
59 }
60
operator ()(double t)61 ::basegfx::B2DPolyPolygon ClockWipe::operator () ( double t )
62 {
63 const basegfx::B2DHomMatrix aTransform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5));
64 ::basegfx::B2DPolygon poly( calcCenteredClock(t) );
65 poly.transform( aTransform );
66 return ::basegfx::B2DPolyPolygon(poly);
67 }
68
69 }
70 }
71