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Code Issues Releases Wiki Activity

Fix delay in value retrieval causing offsetting when zooming

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This commit is contained in:
smoogipoo 2018-04-06 15:51:40 +09:00
parent d9e795fb9f
commit 9b060b1bdf
1 changed files with 8 additions and 10 deletions
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18
osu.Game/Screens/Edit/Screens/Compose/Timeline/ZoomableScrollContainer.cs
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@ -56,7 +56,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
}
private void transformZoomTo(int newZoom, float focusPoint, double duration = 0, Easing easing = Easing.None)
=> this.TransformTo(this.PopulateTransform(new TransformZoom(focusPoint, zoomedContent.DrawWidth), newZoom, duration, easing));
=> this.TransformTo(this.PopulateTransform(new TransformZoom(focusPoint, zoomedContent.DrawWidth, Current), newZoom, duration, easing));
private class TransformZoom : Transform<float, ZoomableScrollContainer>
{
@ -71,19 +71,21 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
private readonly float waveformSize;
/// <summary>
/// The scroll offset at the start time of the transform/
/// The scroll offset at the start of the transform.
/// </summary>
private float startScrollOffset;
private readonly float scrollOffset;
/// <summary>
/// Transforms <see cref="TimeTimelinem"/> to a new value.
/// </summary>
/// <param name="focusPoint">The focus point in the waveform, in absolute coordinates local to the waveform.</param>
/// <param name="waveformSize">The size of the waveform.</param>
public TransformZoom(float focusPoint, float waveformSize)
/// <param name="scrollOffset">The scroll offset at the start of the transform.</param>
public TransformZoom(float focusPoint, float waveformSize, float scrollOffset)
{
this.focusPoint = focusPoint;
this.waveformSize = waveformSize;
this.scrollOffset = scrollOffset;
}
public override string TargetMember => nameof(currentZoom);
@ -100,7 +102,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
{
float newZoom = valueAt(time);
float focusOffset = focusPoint - startScrollOffset;
float focusOffset = focusPoint - scrollOffset;
float expectedWidth = d.DrawWidth * newZoom;
float targetOffset = expectedWidth * (focusPoint / waveformSize) - focusOffset;
@ -108,11 +110,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Timeline
d.ScrollTo(targetOffset, false);
}
protected override void ReadIntoStartValue(ZoomableScrollContainer d)
{
startScrollOffset = d.Current;
StartValue = d.currentZoom;
}
protected override void ReadIntoStartValue(ZoomableScrollContainer d) => StartValue = d.currentZoom;
}
}
}