mathe/Library/PackageCache/com.unity.timeline@1.7.5/Editor/Manipulators/Move/MovingItems.cs

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2024-09-20 20:30:10 +02:00
using System;
using System.Linq;
using UnityEngine;
using UnityEngine.Timeline;
namespace UnityEditor.Timeline
{
class MovingItems : ItemsPerTrack
{
TrackAsset m_ReferenceTrack;
readonly bool m_AllowTrackSwitch;
readonly Rect[] m_ItemsBoundsOnTrack;
readonly Vector2[] m_ItemsMouseOffsets;
static readonly Rect s_InvisibleBounds = new Rect(float.MaxValue, float.MaxValue, 0.0f, 0.0f);
public TrackAsset originalTrack { get; }
public override TrackAsset targetTrack
{
get
{
if (m_AllowTrackSwitch)
return m_ReferenceTrack;
return originalTrack;
}
}
public bool canDrop;
public double start
{
get { return m_ItemsGroup.start; }
set { m_ItemsGroup.start = value; }
}
public double end
{
get { return m_ItemsGroup.end; }
}
public Rect[] onTrackItemsBounds
{
get { return m_ItemsBoundsOnTrack; }
}
public MovingItems(WindowState state, TrackAsset parentTrack, ITimelineItem[] items, TrackAsset referenceTrack, Vector2 mousePosition, bool allowTrackSwitch)
: base(parentTrack, items)
{
originalTrack = parentTrack;
m_ReferenceTrack = referenceTrack;
m_AllowTrackSwitch = allowTrackSwitch;
m_ItemsBoundsOnTrack = new Rect[items.Length];
m_ItemsMouseOffsets = new Vector2[items.Length];
for (int i = 0; i < items.Length; ++i)
{
var itemGUi = items[i].gui;
if (itemGUi != null)
{
m_ItemsBoundsOnTrack[i] = itemGUi.rect;
m_ItemsMouseOffsets[i] = mousePosition - m_ItemsBoundsOnTrack[i].position;
}
}
canDrop = true;
}
public void SetReferenceTrack(TrackAsset track)
{
m_ReferenceTrack = track;
}
public bool HasAnyDetachedParents()
{
return m_ItemsGroup.items.Any(x => x.parentTrack == null);
}
public void RefreshBounds(WindowState state, Vector2 mousePosition)
{
for (int i = 0; i < m_ItemsGroup.items.Length; ++i)
{
var item = m_ItemsGroup.items[i];
var itemGUI = item.gui;
if (item.parentTrack != null)
{
m_ItemsBoundsOnTrack[i] = itemGUI.visible ? itemGUI.rect : s_InvisibleBounds;
}
else
{
if (targetTrack != null)
{
var trackGUI = (TimelineTrackGUI)TimelineWindow.instance.allTracks.FirstOrDefault(t => t.track == targetTrack);
if (trackGUI == null) return;
var trackRect = trackGUI.boundingRect;
m_ItemsBoundsOnTrack[i] = itemGUI.RectToTimeline(trackRect, state);
}
else
{
m_ItemsBoundsOnTrack[i].position = mousePosition - m_ItemsMouseOffsets[i];
}
}
}
}
public void Draw(bool isValid)
{
for (int i = 0; i < m_ItemsBoundsOnTrack.Length; ++i)
{
var rect = m_ItemsBoundsOnTrack[i];
DrawItemInternal(m_ItemsGroup.items[i], rect, isValid);
}
}
static void DrawItemInternal(ITimelineItem item, Rect rect, bool isValid)
{
var clipGUI = item.gui as TimelineClipGUI;
if (clipGUI != null)
{
if (isValid)
{
clipGUI.DrawGhostClip(rect);
}
else
{
clipGUI.DrawInvalidClip(rect);
}
}
}
}
}