1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski // MARKER(update_precomp.py): autogen include statement, do not remove
25*b1cdbd2cSJim Jagielski #include "precompiled_slideshow.hxx"
26*b1cdbd2cSJim Jagielski
27*b1cdbd2cSJim Jagielski #include <canvas/debug.hxx>
28*b1cdbd2cSJim Jagielski #include <basegfx/matrix/b2dhommatrix.hxx>
29*b1cdbd2cSJim Jagielski #include <basegfx/point/b2dpoint.hxx>
30*b1cdbd2cSJim Jagielski #include "doublediamondwipe.hxx"
31*b1cdbd2cSJim Jagielski
32*b1cdbd2cSJim Jagielski
33*b1cdbd2cSJim Jagielski namespace slideshow {
34*b1cdbd2cSJim Jagielski namespace internal {
35*b1cdbd2cSJim Jagielski
operator ()(double t)36*b1cdbd2cSJim Jagielski ::basegfx::B2DPolyPolygon DoubleDiamondWipe::operator () ( double t )
37*b1cdbd2cSJim Jagielski {
38*b1cdbd2cSJim Jagielski // outer:
39*b1cdbd2cSJim Jagielski const double a = ::basegfx::pruneScaleValue( 0.25 + (t * 0.75) );
40*b1cdbd2cSJim Jagielski ::basegfx::B2DPolygon poly;
41*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5 + a, 0.5 ) );
42*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5, 0.5 - a ) );
43*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5 - a, 0.5 ) );
44*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5, 0.5 + a ) );
45*b1cdbd2cSJim Jagielski poly.setClosed(true);
46*b1cdbd2cSJim Jagielski ::basegfx::B2DPolyPolygon res(poly);
47*b1cdbd2cSJim Jagielski
48*b1cdbd2cSJim Jagielski // inner (reverse order to clip):
49*b1cdbd2cSJim Jagielski const double b = ::basegfx::pruneScaleValue( (1.0 - t) * 0.25 );
50*b1cdbd2cSJim Jagielski poly.clear();
51*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5 + b, 0.5 ) );
52*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5, 0.5 + b ) );
53*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5 - b, 0.5 ) );
54*b1cdbd2cSJim Jagielski poly.append( ::basegfx::B2DPoint( 0.5, 0.5 - b ) );
55*b1cdbd2cSJim Jagielski poly.setClosed(true);
56*b1cdbd2cSJim Jagielski res.append(poly);
57*b1cdbd2cSJim Jagielski
58*b1cdbd2cSJim Jagielski return res;
59*b1cdbd2cSJim Jagielski }
60*b1cdbd2cSJim Jagielski
61*b1cdbd2cSJim Jagielski }
62*b1cdbd2cSJim Jagielski }
63