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Code Issues Releases Wiki Activity

Simplify Y position computations and do not scroll to selected beatmap whenever Y positions are recomputed.

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This commit is contained in:
Tom94 2016-11-23 17:42:21 +01:00
parent bd4ba32ebc
commit 3e4ff27865
1 changed files with 10 additions and 14 deletions
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24
osu.Game/Screens/Select/CarouselContainer.cs
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@ -22,8 +22,7 @@ namespace osu.Game.Screens.Select
public BeatmapGroup SelectedGroup { get; private set; }
public BeatmapPanel SelectedPanel { get; private set; }
private Cached yPositionsCached = new Cached();
private List<float> yPositions = new List<float>();
public CarouselContainer()
@ -45,7 +44,7 @@ namespace osu.Game.Screens.Select
foreach (BeatmapPanel panel in group.BeatmapPanels)
panels.Add(panel);
yPositionsCached.Invalidate();
computeYPositions();
}
private void movePanel(Panel panel, bool advance, ref float currentY)
@ -57,7 +56,11 @@ namespace osu.Game.Screens.Select
currentY += panel.DrawHeight + 5;
}
private void computeYPositions()
/// <summary>
/// Computes the target Y positions for every panel in the carousel.
/// </summary>
/// <returns>The Y position of the currently selected panel.</returns>
private float computeYPositions()
{
yPositions.Clear();
@ -92,7 +95,7 @@ namespace osu.Game.Screens.Select
currentY += DrawHeight / 2;
scrollableContent.Height = currentY;
ScrollTo(selectedY);
return selectedY;
}
public void SelectBeatmap(BeatmapInfo beatmap)
@ -121,15 +124,8 @@ namespace osu.Game.Screens.Select
panel.State = PanelSelectedState.Selected;
SelectedPanel = panel;
yPositionsCached.Invalidate();
}
protected override void UpdateLayout()
{
base.UpdateLayout();
if (!yPositionsCached.EnsureValid())
yPositionsCached.Refresh(computeYPositions);
float selectedY = computeYPositions();
ScrollTo(selectedY);
}
private static float offsetX(Panel panel, float dist, float halfHeight)