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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef INCLUDED_SLIDESHOW_SOURCE_INC_TRANSITIONINFO_HXX
21 : #define INCLUDED_SLIDESHOW_SOURCE_INC_TRANSITIONINFO_HXX
22 :
23 : #include <sal/types.h>
24 :
25 :
26 : namespace slideshow {
27 : namespace internal {
28 :
29 : struct TransitionInfo
30 : {
31 : // the following two member serve as the search key
32 : // for an incoming XTransitionFilter node
33 :
34 : // {
35 :
36 : sal_Int16 mnTransitionType;
37 : sal_Int16 mnTransitionSubType;
38 :
39 : // }
40 :
41 :
42 : /** This enum classifies a transition type
43 : */
44 : enum TransitionClass
45 : {
46 : /// Invalid type
47 : TRANSITION_INVALID,
48 :
49 : /// Transition expressed by parametric clip polygon
50 : TRANSITION_CLIP_POLYPOLYGON,
51 :
52 : /// Transition expressed by hand-crafted function
53 : TRANSITION_SPECIAL
54 : };
55 :
56 : /// class of effect handling
57 : TransitionClass meTransitionClass;
58 :
59 : /// Rotation angle of clip polygon
60 : double mnRotationAngle;
61 :
62 : /// X scaling of clip polygon (negative values mirror)
63 : double mnScaleX;
64 :
65 : /// Y scaling of clip polygon (negative values mirror)
66 : double mnScaleY;
67 :
68 : /** This enum determines the method how to reverse
69 : a parametric clip polygon transition.
70 :
71 : A reversed transition runs in the geometrically
72 : opposite direction. For a left-to-right bar wipe, the
73 : reversed transition is a right-to-left wipe, whereas
74 : for an iris transition, the reversed mode will show
75 : the target in the outer area (instead of in the inner
76 : area, as in normal mode).
77 : */
78 : enum ReverseMethod
79 : {
80 : /** Ignore direction attribute altogether
81 : (if it has no sensible meaning for this transition)
82 : */
83 : REVERSEMETHOD_IGNORE,
84 :
85 : /** Revert by changing the direction of the parameter sweep
86 : (from 1->0 instead of 0->1)
87 : */
88 : REVERSEMETHOD_INVERT_SWEEP,
89 :
90 : /** Revert by subtracting the generated polygon from the
91 : target bound rect
92 : */
93 : REVERSEMETHOD_SUBTRACT_POLYGON,
94 :
95 : /** Combination of REVERSEMETHOD_INVERT_SWEEP and
96 : REVERSEMETHOD_SUBTRACT_POLYGON.
97 : */
98 : REVERSEMETHOD_SUBTRACT_AND_INVERT,
99 :
100 : /// Reverse by rotating polygon 180 degrees
101 : REVERSEMETHOD_ROTATE_180,
102 :
103 : /// Reverse by flipping polygon at the y (!) axis
104 : REVERSEMETHOD_FLIP_X,
105 :
106 : /// Reverse by flipping polygon at the x (!) axis
107 : REVERSEMETHOD_FLIP_Y
108 : };
109 :
110 : /** Indicating the method to use when transition
111 : should be 'reversed'.
112 :
113 : @see ReverseMethod
114 : */
115 : ReverseMethod meReverseMethod;
116 :
117 : /** When true, transition 'out' effects are realized
118 : by inverting the parameter sweep direction (1->0
119 : instead of 0->1). Otherwise, 'out' effects are
120 : realized by changing inside and outside areas of
121 : the parametric poly-polygon.
122 : */
123 : bool mbOutInvertsSweep;
124 :
125 : /** when true, scale clip polygon isotrophically to
126 : target size. when false, scale is
127 : anisotrophically.
128 : */
129 : bool mbScaleIsotrophically;
130 :
131 :
132 : /// Compare against type and subtype
133 : class Comparator
134 : {
135 : sal_Int16 mnTransitionType;
136 : sal_Int16 mnTransitionSubType;
137 : public:
138 0 : Comparator( sal_Int16 nTransitionType,
139 : sal_Int16 nTransitionSubType )
140 : : mnTransitionType( nTransitionType ),
141 0 : mnTransitionSubType( nTransitionSubType ) {}
142 0 : bool operator()( const TransitionInfo& rEntry ) const {
143 0 : return rEntry.mnTransitionType == mnTransitionType &&
144 0 : rEntry.mnTransitionSubType == mnTransitionSubType;
145 : }
146 : };
147 : };
148 :
149 : } // namespace internal
150 : } // namespace presentation
151 :
152 : #endif // INCLUDED_SLIDESHOW_SOURCE_INC_TRANSITIONINFO_HXX
153 :
154 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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