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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /slideshow/source/engine/activities/activitybase.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'slideshow/source/engine/activities/activitybase.hxx')
-rw-r--r-- | slideshow/source/engine/activities/activitybase.hxx | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/slideshow/source/engine/activities/activitybase.hxx b/slideshow/source/engine/activities/activitybase.hxx new file mode 100644 index 000000000..e76c84d8e --- /dev/null +++ b/slideshow/source/engine/activities/activitybase.hxx @@ -0,0 +1,143 @@ +/* -*- 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_ENGINE_ACTIVITIES_ACTIVITYBASE_HXX +#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_ACTIVITYBASE_HXX + +#include <animationactivity.hxx> +#include "activityparameters.hxx" +#include <animatableshape.hxx> +#include <shapeattributelayer.hxx> + +namespace slideshow::internal { + +/** Base class for animation activities. + + This whole class hierarchy is only for code sharing + between the various specializations (with or without + key times, fully discrete, etc.). +*/ +class ActivityBase : public AnimationActivity +{ +public: + explicit ActivityBase( const ActivityParameters& rParms ); + + /// From Disposable interface + virtual void dispose() override; + +protected: + /** From Activity interface + + Derived classes should override, call this first + and then perform their work. + */ + virtual bool perform() override; + virtual double calcTimeLag() const override; + virtual bool isActive() const override; + +private: + virtual void dequeued() override; + + // From AnimationActivity interface + virtual void setTargets( + const AnimatableShapeSharedPtr& rShape, + const ShapeAttributeLayerSharedPtr& rAttrLayer ) override; + +private: + /** Hook for derived classes + + This method will be called from the first + perform() invocation, to signal the start of the + activity. + */ + virtual void startAnimation() = 0; + + /** Hook for derived classes + + This method will be called after the last perform() + invocation, and after the potential changes of that + perform() call are committed to screen. That is, in + endAnimation(), the animation objects (sprites, + animation) can safely be destroyed, without causing + visible artifacts on screen. + */ + virtual void endAnimation() = 0; + +protected: + + /** End this activity, in a regular way. + + This method is for derived classes needing to signal a + regular activity end (i.e. because the regular + duration is over) + */ + void endActivity(); + + /** Modify fractional time. + + This method modifies the fractional time (total + duration mapped to the [0,1] range) to the + effective simple time, but only according to + acceleration/deceleration. + */ + double calcAcceleratedTime( double nT ) const; + + bool isDisposed() const { + return (!mbIsActive && !mpEndEvent && !mpShape && + !mpAttributeLayer); + } + + EventQueue& getEventQueue() const { return mrEventQueue; } + + const AnimatableShapeSharedPtr& getShape() const { return mpShape; } + + const ShapeAttributeLayerSharedPtr& getShapeAttributeLayer() const + { return mpAttributeLayer; } + + bool isRepeatCountValid() const { return bool(maRepeats); } + double getRepeatCount() const { return *maRepeats; } + bool isAutoReverse() const { return mbAutoReverse; } + +private: + /// Activity: + virtual void end() override; + virtual void performEnd() = 0; + +private: + EventSharedPtr mpEndEvent; + EventQueue& mrEventQueue; + AnimatableShapeSharedPtr mpShape; // only to pass on to animation + ShapeAttributeLayerSharedPtr mpAttributeLayer; // only to pass on to anim + + ::std::optional<double> const maRepeats; + const double mnAccelerationFraction; + const double mnDecelerationFraction; + + const bool mbAutoReverse; + + // true, if perform() has not yet been called: + mutable bool mbFirstPerformCall; + bool mbIsActive; +}; + +} // namespace presentation::internal + +#endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_ACTIVITYBASE_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |