public FrameClipHitResult HitTest(Vector2 point)
{
int hitFrame = FrameUtil.PosToFrame(point.x);
FrameClipHitResult result = new FrameClipHitResult()
{
Frame = hitFrame, ClickPos = point
};
if (hitFrame < FrameCount && hitFrame >= 0)
{
int hitTrackIndex = Mathf.FloorToInt(point.y / ViewStyles.TrackHeight);
int preTrackCount = 0;
for (int i = 0; i < Asset.Tracks.Count; ++i)
{
var track = Asset.Tracks[i];
int hitSubIndex = hitTrackIndex - preTrackCount;
if (hitSubIndex < 0)
{
break;
}
int subTrakCount = track.Foldout ? track.Count : 1;
preTrackCount += subTrakCount;
if (hitSubIndex >= subTrakCount)
{
continue;
}
foreach (var clipRef in track.Clips)
{
var clip = clipRef.Clip;
if (clip.StartFrame >= hitFrame)
{
int endFrame = clip.StartFrame + clip.Length - 1;
if (clip.Length <= 0 || endFrame >= FrameCount)
{
endFrame = FrameCount - 1;
}
if (endFrame >= hitFrame)
{
float frameOffset = point.x % ViewStyles.FrameWidth;
if (frameOffset <= ViewStyles.ClipCtrlWidth && clip.StartFrame == hitFrame)
{
result.HitPart = FrameClipHitPartType.LeftCtrl;
}
else if (endFrame == hitFrame && (frameOffset >= (ViewStyles.FrameWidth - ViewStyles.ClipCtrlWidth)))
{
result.HitPart = FrameClipHitPartType.RightCtrl;
}
break;
}
}
}
if (result.Clip)
{
break;
}
}
}
return(result);
}
public override void OnDrag(Vector2 pos)
{
int frame = FrameUtil.PosToFrame(pos.x);
if (!hasModify)
{
if (frame != hitResult.Frame)
{
hasModify = true;
view.RegistUndo("move clip");
}
}
if (hasModify)
{
if (hitResult.HitPart == FrameClipHitPartType.LeftCtrl)
{
foreach (var clipRef in view.SelectedClips)
{
int startFrame = clipRef.Clip.StartFrame - (frame - lastFrame);
startFrame = Mathf.Clamp(startFrame, 0, view.FrameCount - 1);
clipRef.Clip.StartFrame = startFrame;
}
}
else if (hitResult.HitPart == FrameClipHitPartType.RightCtrl)
{
}
lastFrame = frame;
TrackUtil.UpdateAllTrack(view.Asset);
}
}