KeyframeTracks¶

Inherits: Action
C++ type: KeyframeTracks

Description¶

Base class of the keyframe track actions: TranslateTracks, RotateTracks, ScaleTracks and MorphTracks. It holds what they share: the key times, the per-segment easing, looping and relative values. Each subclass adds setValues with one value per key.

You typically do not instantiate KeyframeTracks directly.

Properties¶

Methods¶

Property details¶

loop¶

• Setter: void setLoop(bool loop)
• Getter: bool isLoop() const

When true, the track starts over after its last key instead of stopping, so a track loops on its own without an Animation.

relative¶

• Setter: void setRelative(bool relative)
• Getter: bool isRelative() const

When true, the values are offsets from the pose the target has when the track starts: a translation adds to its position, a rotation is applied after its rotation and a scale multiplies its scale. The track then works wherever the target is placed. A UI element with anchors moves by its layout offset. Morph tracks ignore it. See Relative tracks.

Method details¶

setTimes¶

• void setTimes(std::vector times)

Sets the key times in seconds, in ascending order. Trims the easing list when the key count shrinks.

setEasings / setEasing¶

• void setEasings(std::vector easings)
• void setEasing(unsigned int segment, EaseType ease)

setEasing(segment, ease) sets the easing of a single segment (key segment to key segment + 1); setEasings(list) replaces the whole per-segment list. Missing entries mean linear, STEP holds each key's value until the next key, and CUSTOM is not storable per segment (treated as linear). See Per-segment easing.