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

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C#
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2024-09-20 20:30:10 +02:00
using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using Object = UnityEngine.Object;
namespace UnityEditor.Timeline
{
class MoveItemModeRipple : IMoveItemMode, IMoveItemDrawer
{
const float k_SnapToEdgeDistance = 30.0f;
class PrevItemInfo
{
public ITimelineItem item;
public ITimelineItem firstSelectedItem;
public bool blending;
public PrevItemInfo(ITimelineItem item, ITimelineItem firstSelectedItem)
{
this.item = item;
this.firstSelectedItem = firstSelectedItem;
blending = item != null && item.end > firstSelectedItem.start;
}
}
readonly Dictionary<Object, List<ITimelineItem>> m_NextItems = new Dictionary<Object, List<ITimelineItem>>();
readonly Dictionary<Object, PrevItemInfo> m_PreviousItem = new Dictionary<Object, PrevItemInfo>();
double m_PreviousEnd;
bool m_TrackLocked;
bool m_Detached;
public void OnTrackDetach(IEnumerable<ItemsPerTrack> itemsGroups)
{
if (m_TrackLocked)
return;
if (m_Detached)
return;
if (itemsGroups.Any(x => x.markers.Any()))
return;
// Ripple can either remove or not clips when detaching them from their track.
// Keep it off for now. TODO: add clutch key to toggle this feature?
//EditModeRippleUtils.Remove(manipulatedClipsList);
StartDetachMode(itemsGroups);
}
public void HandleTrackSwitch(IEnumerable<ItemsPerTrack> itemsGroups)
{
// Nothing
}
public bool AllowTrackSwitch()
{
return !m_TrackLocked;
}
public double AdjustStartTime(WindowState state, ItemsPerTrack itemsGroup, double time)
{
var track = itemsGroup.targetTrack;
if (track == null)
return time;
double start;
double end;
if (EditModeUtils.IsInfiniteTrack(track))
{
EditModeUtils.GetInfiniteClipBoundaries(track, out start, out end);
}
else
{
var siblings = ItemsUtils.GetItemsExcept(track, itemsGroup.items);
var firstIntersectedItem = EditModeUtils.GetFirstIntersectedItem(siblings, time);
if (firstIntersectedItem == null)
return time;
start = firstIntersectedItem.start;
end = firstIntersectedItem.end;
}
var closestTime = Math.Abs(time - start) < Math.Abs(time - end) ? start : end;
var pixelTime = state.TimeToPixel(time);
var pixelClosestTime = state.TimeToPixel(closestTime);
if (Math.Abs(pixelTime - pixelClosestTime) < k_SnapToEdgeDistance)
return closestTime;
return time;
}
void StartDetachMode(IEnumerable<ItemsPerTrack> itemsGroups)
{
m_Detached = true;
foreach (var itemsGroup in itemsGroups)
EditModeUtils.SetParentTrack(itemsGroup.items, null);
}
public void OnModeClutchEnter(IEnumerable<ItemsPerTrack> itemsGroups)
{
StartDetachMode(itemsGroups);
m_TrackLocked = false;
}
public void OnModeClutchExit(IEnumerable<ItemsPerTrack> itemsGroups)
{
m_Detached = false;
m_TrackLocked = false;
}
public void BeginMove(IEnumerable<ItemsPerTrack> itemsGroups)
{
m_NextItems.Clear();
m_PreviousItem.Clear();
var itemTypes = ItemsUtils.GetItemTypes(itemsGroups).ToList();
foreach (var itemsGroup in itemsGroups)
{
//can only ripple items of the same type as those selected
var sortedSelectedItems = itemsGroup.items.OrderBy(i => i.start).ToList();
var siblings = itemsGroup.targetTrack.GetItemsExcept(itemsGroup.items);
var sortedSiblingsToRipple = siblings.Where(i => itemTypes.Contains(i.GetType())).OrderBy(i => i.start).ToList();
var start = sortedSelectedItems.First().start;
m_NextItems.Add(itemsGroup.targetTrack, sortedSiblingsToRipple.Where(i => i.start > start).ToList());
m_PreviousItem.Add(itemsGroup.targetTrack, CalculatePrevItemInfo(sortedSelectedItems, sortedSiblingsToRipple, itemTypes));
}
m_PreviousEnd = itemsGroups.Max(m => m.items.Max(c => c.end));
}
public void UpdateMove(IEnumerable<ItemsPerTrack> itemsGroups)
{
if (m_Detached)
return;
m_TrackLocked = true;
var overlap = 0.0;
foreach (var itemsGroup in itemsGroups)
{
var track = itemsGroup.targetTrack;
if (track == null) continue;
var prevItemInfo = m_PreviousItem[track];
if (prevItemInfo.item != null)
{
var prevItem = prevItemInfo.item;
var firstItem = prevItemInfo.firstSelectedItem;
if (prevItemInfo.blending)
prevItemInfo.blending = prevItem.end > firstItem.start;
if (prevItemInfo.blending)
{
var b = EditModeUtils.BlendDuration(firstItem, TrimEdge.End);
overlap = Math.Max(overlap, Math.Max(prevItem.start, prevItem.end - firstItem.end + firstItem.start + b) - firstItem.start);
}
else
{
overlap = Math.Max(overlap, prevItem.end - firstItem.start);
}
}
}
if (overlap > 0)
{
foreach (var itemsGroup in itemsGroups)
{
foreach (var item in itemsGroup.items)
item.start += overlap;
}
}
var newEnd = itemsGroups.Max(m => m.items.Max(c => c.end));
var offset = newEnd - m_PreviousEnd;
m_PreviousEnd = newEnd;
foreach (var itemsGroup in itemsGroups)
{
foreach (var item in m_NextItems[itemsGroup.targetTrack])
item.start += offset;
}
}
static PrevItemInfo CalculatePrevItemInfo(List<ITimelineItem> orderedSelection, List<ITimelineItem> orderedSiblings, IEnumerable<Type> itemTypes)
{
ITimelineItem previousItem = null;
ITimelineItem firstSelectedItem = null;
var gap = double.PositiveInfinity;
foreach (var type in itemTypes)
{
var firstSelectedItemOfType = orderedSelection.FirstOrDefault(i => i.GetType() == type);
if (firstSelectedItemOfType == null) continue;
var previousItemOfType = orderedSiblings.LastOrDefault(i => i.GetType() == type && i.start < firstSelectedItemOfType.start);
if (previousItemOfType == null) continue;
var currentGap = firstSelectedItemOfType.start - previousItemOfType.end;
if (currentGap < gap)
{
gap = currentGap;
firstSelectedItem = firstSelectedItemOfType;
previousItem = previousItemOfType;
}
}
return new PrevItemInfo(previousItem, firstSelectedItem);
}
public bool ValidateMove(ItemsPerTrack itemsGroup)
{
return true;
}
public void FinishMove(IEnumerable<ItemsPerTrack> itemsGroups)
{
if (m_Detached)
EditModeRippleUtils.Insert(itemsGroups);
m_Detached = false;
m_TrackLocked = false;
}
public void DrawGUI(WindowState state, IEnumerable<MovingItems> movingItems, Color color)
{
if (m_Detached)
{
var xMin = float.MaxValue;
var xMax = float.MinValue;
foreach (var grabbedItems in movingItems)
{
xMin = Math.Min(xMin, grabbedItems.onTrackItemsBounds.Min(b => b.xMin)); // TODO Cache this?
xMax = Math.Max(xMax, grabbedItems.onTrackItemsBounds.Max(b => b.xMax));
}
foreach (var grabbedItems in movingItems)
{
var bounds = Rect.MinMaxRect(xMin, grabbedItems.onTrackItemsBounds[0].yMin,
xMax, grabbedItems.onTrackItemsBounds[0].yMax);
EditModeGUIUtils.DrawOverlayRect(bounds, new Color(1.0f, 1.0f, 1.0f, 0.5f));
EditModeGUIUtils.DrawBoundsEdge(bounds, color, TrimEdge.Start);
}
}
else
{
foreach (var grabbedItems in movingItems)
{
var bounds = Rect.MinMaxRect(grabbedItems.onTrackItemsBounds.Min(b => b.xMin), grabbedItems.onTrackItemsBounds[0].yMin,
grabbedItems.onTrackItemsBounds.Max(b => b.xMax), grabbedItems.onTrackItemsBounds[0].yMax);
EditModeGUIUtils.DrawBoundsEdge(bounds, color, TrimEdge.Start);
}
}
TimelineCursors.SetCursor(TimelineCursors.CursorType.Ripple);
}
}
}