Inheritance diagram of QAnimationGroup

Inherited by: QSequentialAnimationGroup, QParallelAnimationGroup


This class was introduced in Qt 4.6



Detailed Description

The PySide.QtCore.QAnimationGroup class is an abstract base class for groups of animations.

An animation group is a container for animations (subclasses of PySide.QtCore.QAbstractAnimation ). A group is usually responsible for managing the state of its animations, i.e., it decides when to start, stop, resume, and pause them. Currently, Qt provides two such groups: PySide.QtCore.QParallelAnimationGroup and PySide.QtCore.QSequentialAnimationGroup . Look up their class descriptions for details.

Since PySide.QtCore.QAnimationGroup inherits from PySide.QtCore.QAbstractAnimation , you can combine groups, and easily construct complex animation graphs. You can query PySide.QtCore.QAbstractAnimation for the group it belongs to (using the function).

To start a top-level animation group, you simply use the PySide.QtCore.QAbstractAnimation.start() function from PySide.QtCore.QAbstractAnimation . By a top-level animation group, we think of a group that itself is not contained within another group. Starting sub groups directly is not supported, and may lead to unexpected behavior.

PySide.QtCore.QAnimationGroup provides methods for adding and retrieving animations. Besides that, you can remove animations by calling remove() , and clear the animation group by calling PySide.QtCore.QAnimationGroup.clear() . You may keep track of changes in the group’s animations by listening to QEvent.ChildAdded and QEvent.ChildRemoved events.

PySide.QtCore.QAnimationGroup takes ownership of the animations it manages, and ensures that they are deleted when the animation group is deleted.

class PySide.QtCore.QAnimationGroup([parent=None])

Constructs a PySide.QtCore.QAnimationGroup . parent is passed to PySide.QtCore.QObject ‘s constructor.


Adds animation to this group. This will call insertAnimation with index equals to PySide.QtCore.QAnimationGroup.animationCount() .


The group takes ownership of the animation.

Return type:PySide.QtCore.QAbstractAnimation

Returns a pointer to the animation at index in this group. This function is useful when you need access to a particular animation. index is between 0 and PySide.QtCore.QAnimationGroup.animationCount() - 1.


Returns the number of animations managed by this group.


Removes and deletes all animations in this animation group, and resets the current time to 0.


Returns the index of animation . The returned index can be passed to the other functions that take an index as an argument.

PySide.QtCore.QAnimationGroup.insertAnimation(index, animation)

Inserts animation into this animation group at index . If index is 0 the animation is inserted at the beginning. If index is PySide.QtCore.QAnimationGroup.animationCount() , the animation is inserted at the end.


The group takes ownership of the animation.


Removes animation from this group. The ownership of animation is transferred to the caller.

Return type:PySide.QtCore.QAbstractAnimation

Returns the animation at index and removes it from the animation group.


The ownership of the animation is transferred to the caller.