//----------------------------------------------------------------------------------------------------------------------
/// <inheritdoc/>
public override void DrawBackground(TimelineClip clip, ClipBackgroundRegion region)
{
base.DrawBackground(clip, region);
Rect rect = region.position;
if (rect.width <= SISEditorConstants.MIN_PREVIEW_REGION_WIDTH)
{
return;
}
ImageFolderPlayableAsset <T> curAsset = clip.asset as ImageFolderPlayableAsset <T>;
if (null == curAsset)
{
return;
}
DrawBackgroundTexture(rect, curAsset.GetTimelineBGColor());
int numImages = curAsset.GetNumImages();
if (numImages <= 0)
{
return;
}
if (Event.current.type == EventType.Repaint)
{
PreviewClipInfo clipInfo = new PreviewClipInfo()
{
Duration = clip.duration,
TimeScale = clip.timeScale,
ClipIn = clip.clipIn,
FramePerSecond = clip.GetParentTrack().timelineAsset.editorSettings.GetFPS(),
ImageDimensionRatio = curAsset.GetOrUpdateDimensionRatio(),
VisibleLocalStartTime = region.startTime,
VisibleLocalEndTime = region.endTime,
VisibleRect = rect,
};
PreviewUtility.EnumeratePreviewImages(ref clipInfo, (PreviewDrawInfo drawInfo) => {
DrawPreviewImageV(ref drawInfo, clip, curAsset);
});
//For hiding frame marker automatically
PlayableFrameClipData clipData = curAsset.GetBoundClipData();
if (null != clipData)
{
clipData.UpdateTimelineWidthPerFrame(rect.width, region.endTime - region.startTime,
clipInfo.FramePerSecond, clipInfo.TimeScale);
}
}
}
//----------------------------------------------------------------------------------------------------------------------
protected override void DrawPreviewImageV(ref PreviewDrawInfo drawInfo, TimelineClip clip,
ImageFolderPlayableAsset <RenderCacheClipData> renderCachePlayableAsset)
{
double normalizedLocalTime = drawInfo.LocalTime / clip.duration;
int numImages = renderCachePlayableAsset.GetNumImages();
Assert.IsTrue(numImages > 0);
//Can't round up, because if the time for the next frame hasn't been reached, then we should stick
int index = Mathf.FloorToInt(numImages * (float)normalizedLocalTime);
index = Mathf.Clamp(index, 0, numImages - 1);
//Draw
string imagePath = renderCachePlayableAsset.GetImageFilePath(index);
PreviewUtility.DrawPreviewImage(ref drawInfo, imagePath);
}