98 lines
3.3 KiB
C#
98 lines
3.3 KiB
C#
using System;
|
|
using System.Linq;
|
|
using UnityEngine;
|
|
using UnityEngine.Timeline;
|
|
|
|
namespace UnityEditor.Timeline
|
|
{
|
|
class TrimItemModeRipple : ITrimItemMode, ITrimItemDrawer
|
|
{
|
|
double m_OriginalClipStart;
|
|
double m_OriginalClipEnd;
|
|
|
|
ITrimmable[] m_NextItems;
|
|
|
|
double m_BlendDuration;
|
|
|
|
double m_TrimStartShift;
|
|
|
|
public void OnBeforeTrim(ITrimmable item, TrimEdge trimDirection)
|
|
{
|
|
m_OriginalClipStart = item.start;
|
|
m_OriginalClipEnd = item.end;
|
|
m_TrimStartShift = 0.0;
|
|
|
|
var sortedClips = ItemsUtils.GetItemsExcept(item.parentTrack, new[] { item })
|
|
.OfType<ITrimmable>()
|
|
.OrderBy(c => c.start);
|
|
|
|
var clipStart = (DiscreteTime)item.start;
|
|
var clipEnd = (DiscreteTime)item.end;
|
|
|
|
m_NextItems = sortedClips.Where(c => (DiscreteTime)c.start >= clipStart && (DiscreteTime)c.end >= clipEnd).ToArray();
|
|
|
|
var overlapped = sortedClips.LastOrDefault(c => (DiscreteTime)c.start == clipStart && (DiscreteTime)c.end == clipEnd);
|
|
|
|
if (overlapped != null)
|
|
{
|
|
m_BlendDuration = overlapped.end - overlapped.start;
|
|
}
|
|
else
|
|
{
|
|
m_BlendDuration = 0.0;
|
|
|
|
var prevClip = sortedClips.LastOrDefault(c => (DiscreteTime)c.start <= clipStart && (DiscreteTime)c.end <= clipEnd);
|
|
if (prevClip != null)
|
|
m_BlendDuration += Math.Max(prevClip.end - item.start, 0.0);
|
|
|
|
var nextClip = sortedClips.FirstOrDefault(c => (DiscreteTime)c.start >= clipStart && (DiscreteTime)c.end >= clipEnd);
|
|
if (nextClip != null)
|
|
m_BlendDuration += Math.Max(item.end - nextClip.start, 0.0);
|
|
}
|
|
}
|
|
|
|
public void TrimStart(ITrimmable item, double time, bool affectTimeScale)
|
|
{
|
|
var prevEnd = item.end;
|
|
|
|
// HACK If time is negative, make sure we shift the SetStart operation to a positive space.
|
|
if (time < 0.0)
|
|
m_TrimStartShift = Math.Max(-time, m_TrimStartShift);
|
|
|
|
item.start = m_OriginalClipEnd - item.duration + m_TrimStartShift;
|
|
time += m_TrimStartShift;
|
|
|
|
if (m_BlendDuration > 0.0)
|
|
time = Math.Min(time, item.end - m_BlendDuration);
|
|
|
|
item.SetStart(time, affectTimeScale);
|
|
|
|
item.start = m_OriginalClipStart;
|
|
|
|
var offset = item.end - prevEnd;
|
|
foreach (var timelineClip in m_NextItems)
|
|
timelineClip.start += offset;
|
|
}
|
|
|
|
public void TrimEnd(ITrimmable item, double time, bool affectTimeScale)
|
|
{
|
|
var prevEnd = item.end;
|
|
|
|
if (m_BlendDuration > 0.0)
|
|
time = Math.Max(time, item.start + m_BlendDuration);
|
|
|
|
item.SetEnd(time, affectTimeScale);
|
|
|
|
var offset = item.end - prevEnd;
|
|
foreach (var timelineClip in m_NextItems)
|
|
timelineClip.start += offset;
|
|
}
|
|
|
|
public void DrawGUI(WindowState state, Rect bounds, Color color, TrimEdge edge)
|
|
{
|
|
EditModeGUIUtils.DrawBoundsEdge(bounds, color, edge);
|
|
TimelineCursors.SetCursor(TimelineCursors.CursorType.Ripple);
|
|
}
|
|
}
|
|
}
|