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 "transitiontools.hxx"
33 #include "zigzagwipe.hxx"
34
35
36 namespace slideshow {
37 namespace internal {
38
ZigZagWipe(sal_Int32 nZigs)39 ZigZagWipe::ZigZagWipe( sal_Int32 nZigs ) : m_zigEdge( 1.0 / nZigs )
40 {
41 const double d = m_zigEdge;
42 const double d2 = (d / 2.0);
43 m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, -d ) );
44 m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, 1.0 + d ) );
45 m_stdZigZag.append( ::basegfx::B2DPoint( -d, 1.0 + d ) );
46 for ( sal_Int32 pos = (nZigs + 2); pos--; ) {
47 m_stdZigZag.append( ::basegfx::B2DPoint( 0.0, ((pos - 1) * d) + d2 ) );
48 m_stdZigZag.append( ::basegfx::B2DPoint( -d, (pos - 1) * d ) );
49 }
50 m_stdZigZag.setClosed(true);
51 }
52
operator ()(double t)53 ::basegfx::B2DPolyPolygon ZigZagWipe::operator () ( double t )
54 {
55 ::basegfx::B2DPolyPolygon res(m_stdZigZag);
56 res.transform(basegfx::tools::createTranslateB2DHomMatrix((1.0 + m_zigEdge) * t, 0.0));
57 return res;
58 }
59
operator ()(double t)60 ::basegfx::B2DPolyPolygon BarnZigZagWipe::operator () ( double t )
61 {
62 ::basegfx::B2DPolyPolygon res( createUnitRect() );
63 ::basegfx::B2DPolygon poly( m_stdZigZag );
64 poly.flip();
65 basegfx::B2DHomMatrix aTransform(basegfx::tools::createTranslateB2DHomMatrix(
66 (1.0 + m_zigEdge) * (1.0 - t) / 2.0, 0.0));
67 poly.transform( aTransform );
68 res.append( poly );
69 aTransform.scale( -1.0, 1.0 );
70 aTransform.translate( 1.0, m_zigEdge / 2.0 );
71 poly = m_stdZigZag;
72 poly.transform( aTransform );
73 res.append( poly );
74 return res;
75 }
76
77 }
78 }
79