// Creates a new annotation and add it to the selected track.
public override bool Execute(ActionContext context)
{
// to find at which time to create a new marker, we need to consider how this action was invoked.
// If the action was invoked by a context menu item, then we can use the context's invocation time.
// If the action was invoked through a keyboard shortcut, we can use Timeline's playhead time instead.
double time;
if (context.invocationTime.HasValue)
{
time = context.invocationTime.Value;
}
else
{
time = TimelineEditor.inspectedDirector.time;
}
string clipboardTextContent = EditorGUIUtility.systemCopyBuffer;
IEnumerable <TrackAsset> selectedTracks = context.tracks;
foreach (TrackAsset track in selectedTracks)
{
if (track is GroupTrack)
{
continue;
}
AnnotationMarker annotation = track.CreateMarker <AnnotationMarker>(time);
annotation.description = clipboardTextContent;
annotation.title = "Annotation";
}
return(true);
}
// Sets the marker's tooltip based on its title.
public override MarkerDrawOptions GetMarkerOptions(IMarker marker)
{
// The `marker argument needs to be cast as the appropriate type, usually the one specified in the `CustomTimelineEditor` attribute
AnnotationMarker annotation = marker as AnnotationMarker;
if (annotation == null)
{
return(base.GetMarkerOptions(marker));
}
return(new MarkerDrawOptions {
tooltip = annotation.title
});
}
// Draws a vertical line on top of the Timeline window's contents.
public override void DrawOverlay(IMarker marker, MarkerUIStates uiState, MarkerOverlayRegion region)
{
// The `marker argument needs to be cast as the appropriate type, usually the one specified in the `CustomTimelineEditor` attribute
AnnotationMarker annotation = marker as AnnotationMarker;
if (annotation == null)
{
return;
}
if (annotation.showLineOverlay)
{
DrawLineOverlay(annotation.color, region);
}
DrawColorOverlay(region, annotation.color, uiState);
}
