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-rw-r--r-- | slideshow/source/inc/animatableshape.hxx | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/slideshow/source/inc/animatableshape.hxx b/slideshow/source/inc/animatableshape.hxx new file mode 100644 index 000000000..7cefad0f6 --- /dev/null +++ b/slideshow/source/inc/animatableshape.hxx @@ -0,0 +1,79 @@ +/* -*- 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_ANIMATABLESHAPE_HXX +#define INCLUDED_SLIDESHOW_SOURCE_INC_ANIMATABLESHAPE_HXX + +#include <memory> + +#include "shape.hxx" + + +namespace slideshow::internal + { + /** Represents an animatable shape. + + This interface adds animation handling methods to a + shape. It allows transparent switching between + sprite-based viewing and static painting, depending on + whether animations are currently running. + */ + class AnimatableShape : public Shape + { + public: + // Animation methods + + + /** Notify the Shape that an animation starts now + + This method enters animation mode on all registered + views. + + @attention This method is supposed to be called only + from the LayerManager, since it might involve shifting + shapes between different layers (and removing this + shape from the background layer in the first place) + */ + virtual void enterAnimationMode() = 0; + + /** Notify the Shape that it is no longer animated + + This methods requests the Shape to end animation mode + on all registered views, if called more or equal the + times enterAnimationMode() was called. That is, the + Shape only leaves animation mode, if all requested + enterAnimationMode() call sites have issued their + matching leaveAnimationMode(). + + @attention This method is supposed to be called only + from the LayerManager, since it might involve shifting + shapes between different layers (and adding this + shape to the background layer again) + */ + virtual void leaveAnimationMode() = 0; + + }; + + typedef ::std::shared_ptr< AnimatableShape > AnimatableShapeSharedPtr; + +} + +#endif // INCLUDED_SLIDESHOW_SOURCE_INC_ANIMATABLESHAPE_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |