mirror of
https://github.com/ppy/osu
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132 lines
4.2 KiB
C#
132 lines
4.2 KiB
C#
//Copyright (c) 2007-2016 ppy Pty Ltd <contact@ppy.sh>.
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//Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Framework;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Transformations;
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using osu.Game.Database;
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namespace osu.Game.Beatmaps.Drawables
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{
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class BeatmapGroup : IStateful<BeatmapGroupState>
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{
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public BeatmapPanel SelectedPanel;
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/// <summary>
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/// Fires when one of our difficulties was selected. Will fire on first expand.
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/// </summary>
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public Action<BeatmapGroup, BeatmapInfo> SelectionChanged;
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/// <summary>
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/// Fires when one of our difficulties is clicked when already selected. Should start playing the map.
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/// </summary>
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public Action<BeatmapInfo> StartRequested;
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public BeatmapSetHeader Header;
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private BeatmapGroupState state;
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public List<BeatmapPanel> BeatmapPanels;
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public BeatmapSetInfo BeatmapSet;
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private bool hidden;
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public bool Hidden
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{
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get { return hidden; }
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set
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{
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hidden = value;
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Header.Alpha = hidden ? 0 : 1;
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if (hidden)
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State = BeatmapGroupState.Collapsed;
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}
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}
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public BeatmapGroupState State
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{
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get { return state; }
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set
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{
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state = value;
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switch (state)
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{
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case BeatmapGroupState.Expanded:
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foreach (BeatmapPanel panel in BeatmapPanels)
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panel.FadeIn(250);
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Header.State = PanelSelectedState.Selected;
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if (SelectedPanel != null)
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SelectedPanel.State = PanelSelectedState.Selected;
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break;
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case BeatmapGroupState.Collapsed:
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Header.State = PanelSelectedState.NotSelected;
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if (SelectedPanel != null)
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SelectedPanel.State = PanelSelectedState.NotSelected;
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foreach (BeatmapPanel panel in BeatmapPanels)
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panel.FadeOut(300, EasingTypes.OutQuint);
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break;
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}
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}
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}
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public BeatmapGroup(WorkingBeatmap beatmap, BeatmapSetInfo set = null)
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{
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Header = new BeatmapSetHeader(beatmap)
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{
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GainedSelection = headerGainedSelection,
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RelativeSizeAxes = Axes.X,
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};
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BeatmapPanels = beatmap.BeatmapSetInfo.Beatmaps.Select(b => new BeatmapPanel(b)
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{
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Alpha = 0,
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GainedSelection = panelGainedSelection,
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StartRequested = p => { StartRequested?.Invoke(p.Beatmap); },
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RelativeSizeAxes = Axes.X,
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}).ToList();
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BeatmapSet = set;
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Header.AddDifficultyIcons(BeatmapPanels);
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}
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private void headerGainedSelection(BeatmapSetHeader panel)
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{
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State = BeatmapGroupState.Expanded;
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//we want to make sure one of our children is selected in the case none have been selected yet.
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if (SelectedPanel == null)
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BeatmapPanels.First().State = PanelSelectedState.Selected;
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else
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SelectionChanged?.Invoke(this, SelectedPanel.Beatmap);
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}
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private void panelGainedSelection(BeatmapPanel panel)
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{
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try
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{
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if (SelectedPanel == panel) return;
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if (SelectedPanel != null)
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SelectedPanel.State = PanelSelectedState.NotSelected;
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SelectedPanel = panel;
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}
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finally
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{
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State = BeatmapGroupState.Expanded;
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SelectionChanged?.Invoke(this, panel.Beatmap);
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}
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}
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}
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public enum BeatmapGroupState
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{
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Collapsed,
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Expanded,
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}
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}
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