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Code Issues Releases Wiki Activity

Handle scrolling in SectionsContainer.

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This commit is contained in:
Huo Yaoyuan 2017-06-25 10:06:54 +08:00
parent 674e2a4395
commit 18295a9b97
3 changed files with 19 additions and 10 deletions
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23
osu.Game/Graphics/Containers/SectionsContainer.cs
View File

@ -16,7 +16,7 @@ namespace osu.Game.Graphics.Containers
where T : Drawable
{
private Drawable expandableHeader, fixedHeader, footer, headerBackground;
public readonly ScrollContainer ScrollContainer;
private readonly ScrollContainer scrollContainer;
private readonly Container headerBackgroundContainer;
private readonly FlowContainer<T> scrollContentContainer;
@ -62,13 +62,13 @@ namespace osu.Game.Graphics.Containers
if (value == footer) return;
if (footer != null)
ScrollContainer.Remove(footer);
scrollContainer.Remove(footer);
footer = value;
if (value == null) return;
footer.Anchor |= Anchor.y2;
footer.Origin |= Anchor.y2;
ScrollContainer.Add(footer);
scrollContainer.Add(footer);
lastKnownScroll = float.NaN;
}
}
@ -122,10 +122,11 @@ namespace osu.Game.Graphics.Containers
public SectionsContainer()
{
AddInternal(ScrollContainer = new ScrollContainer()
AddInternal(scrollContainer = new ScrollContainer()
{
RelativeSizeAxes = Axes.Both,
Masking = true,
ScrollbarVisible = false,
Children = new Drawable[] { scrollContentContainer = CreateScrollContentContainer() },
Depth = float.MaxValue
});
@ -137,6 +138,15 @@ namespace osu.Game.Graphics.Containers
originalSectionsMargin = scrollContentContainer.Margin;
}
public void ScrollToTop(T section)
{
float pos = scrollContainer.GetChildPosInContent(section);
float current = scrollContainer.Current;
float scrollOffset = FixedHeader?.LayoutSize.Y ?? 0;
if (section == Children.First() && current < pos - scrollOffset) return;
scrollContainer.ScrollTo(pos - scrollOffset);
}
private float lastKnownScroll;
protected override void UpdateAfterChildren()
{
@ -151,7 +161,7 @@ namespace osu.Game.Graphics.Containers
updateSectionsMargin();
}
float currentScroll = Math.Max(0, ScrollContainer.Current);
float currentScroll = Math.Max(0, scrollContainer.Current);
if (currentScroll != lastKnownScroll)
{
lastKnownScroll = currentScroll;
@ -169,10 +179,11 @@ namespace osu.Game.Graphics.Containers
T bestMatch = null;
float minDiff = float.MaxValue;
float scrollOffset = FixedHeader?.LayoutSize.Y ?? 0;
foreach (var section in Children)
{
float diff = Math.Abs(ScrollContainer.GetChildPosInContent(section) - currentScroll);
float diff = Math.Abs(scrollContainer.GetChildPosInContent(section) - currentScroll - scrollOffset);
if (diff < minDiff)
{
minDiff = diff;

3
osu.Game/Overlays/SettingsOverlay.cs
View File

@ -93,7 +93,7 @@ namespace osu.Game.Overlays
new SidebarButton
{
Section = section,
Action = sectionsContainer.ScrollContainer.ScrollIntoView,
Action = sectionsContainer.ScrollToTop
}
).ToArray()
}
@ -162,7 +162,6 @@ namespace osu.Game.Overlays
public SettingsSectionsContainer()
{
ScrollContainer.ScrollbarVisible = false;
HeaderBackground = new Box
{
Colour = Color4.Black,

3
osu.Game/Overlays/UserProfileOverlay.cs
View File

@ -112,7 +112,6 @@ namespace osu.Game.Overlays
RelativeSizeAxes = Axes.Both
}
};
sectionsContainer.ScrollContainer.ScrollbarVisible = false;
Add(sectionsContainer);
sectionsContainer.SelectedSection.ValueChanged += s =>
{
@ -135,7 +134,7 @@ namespace osu.Game.Overlays
if (lastSection != s)
{
lastSection = s;
sectionsContainer.ScrollContainer.ScrollIntoView(lastSection);
sectionsContainer.ScrollToTop(lastSection);
}
};