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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_SLIDESHOW_SOURCE_INC_TRANSITIONINFO_HXX
+#define INCLUDED_SLIDESHOW_SOURCE_INC_TRANSITIONINFO_HXX
+
+#include <sal/types.h>
+
+
+namespace slideshow {
+namespace internal {
+
+struct TransitionInfo
+{
+ // the following two member serve as the search key
+ // for an incoming XTransitionFilter node
+
+ // {
+
+ sal_Int16 mnTransitionType;
+ sal_Int16 mnTransitionSubType;
+
+ // }
+
+
+ /** This enum classifies a transition type
+ */
+ enum TransitionClass
+ {
+ /// Invalid type
+ TRANSITION_INVALID,
+
+ /// Transition expressed by parametric clip polygon
+ TRANSITION_CLIP_POLYPOLYGON,
+
+ /// Transition expressed by hand-crafted function
+ TRANSITION_SPECIAL
+ };
+
+ /// class of effect handling
+ TransitionClass meTransitionClass;
+
+ /// Rotation angle of clip polygon
+ double mnRotationAngle;
+
+ /// X scaling of clip polygon (negative values mirror)
+ double mnScaleX;
+
+ /// Y scaling of clip polygon (negative values mirror)
+ double mnScaleY;
+
+ /** This enum determines the method how to reverse
+ a parametric clip polygon transition.
+
+ A reversed transition runs in the geometrically
+ opposite direction. For a left-to-right bar wipe, the
+ reversed transition is a right-to-left wipe, whereas
+ for an iris transition, the reversed mode will show
+ the target in the outer area (instead of in the inner
+ area, as in normal mode).
+ */
+ enum class ReverseMethod
+ {
+ /** Ignore direction attribute altogether
+ (if it has no sensible meaning for this transition)
+ */
+ Ignore,
+
+ /** Combination of ReverseMethod::InvertSweep and
+ ReverseMethod::SubtractPolygon.
+ */
+ SubtractAndInvert,
+
+ /// Reverse by rotating polygon 180 degrees
+ Rotate180,
+
+ /// Reverse by flipping polygon at the y (!) axis
+ FlipX,
+
+ /// Reverse by flipping polygon at the x (!) axis
+ FlipY
+ };
+
+ /** Indicating the method to use when transition
+ should be 'reversed'.
+
+ @see ReverseMethod
+ */
+ ReverseMethod meReverseMethod;
+
+ /** When true, transition 'out' effects are realized
+ by inverting the parameter sweep direction (1->0
+ instead of 0->1). Otherwise, 'out' effects are
+ realized by changing inside and outside areas of
+ the parametric poly-polygon.
+ */
+ bool mbOutInvertsSweep;
+
+ /** when true, scale clip polygon isotropically to
+ target size. when false, scale is
+ anisotropically.
+ */
+ bool mbScaleIsotrophically;
+
+
+ /// Compare against type and subtype
+ class Comparator
+ {
+ sal_Int16 mnTransitionType;
+ sal_Int16 mnTransitionSubType;
+ public:
+ Comparator( sal_Int16 nTransitionType,
+ sal_Int16 nTransitionSubType )
+ : mnTransitionType( nTransitionType ),
+ mnTransitionSubType( nTransitionSubType ) {}
+ bool operator()( const TransitionInfo& rEntry ) const {
+ return rEntry.mnTransitionType == mnTransitionType &&
+ rEntry.mnTransitionSubType == mnTransitionSubType;
+ }
+ };
+};
+
+} // namespace internal
+} // namespace presentation
+
+#endif // INCLUDED_SLIDESHOW_SOURCE_INC_TRANSITIONINFO_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */