147 lines
9.8 KiB
Plaintext
147 lines
9.8 KiB
Plaintext
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Ûb‚K Packages/com.unity.timeline/Editor/Manipulators/Trim/TrimItemModeReplace.cs ày¯ TrimItemModeReplace Ï using System;
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using System.Linq;
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using UnityEngine;
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using UnityEngine.Timeline;
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namespace UnityEditor.Timeline
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{
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class TrimItemModeReplace : ITrimItemMode, ITrimItemDrawer
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{
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ITrimmable m_Item;
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ITrimmable m_ItemToBeReplaced;
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double m_ClipOriginalEdgeValue;
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bool m_TrimReplace;
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double m_Min;
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double m_Max;
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public void OnBeforeTrim(ITrimmable item, TrimEdge trimDirection)
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{
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m_Item = item;
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var sortedClips = ItemsUtils.GetItemsExcept(item.parentTrack, new[] { item })
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.OfType<ITrimmable>()
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.OrderBy(c => c.start);
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var clipStart = (DiscreteTime)item.start;
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var clipEnd = (DiscreteTime)item.end;
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var overlapped = sortedClips.LastOrDefault(c => (DiscreteTime)c.start == clipStart && (DiscreteTime)c.end == clipEnd);
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ITrimmable nextItem;
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ITrimmable prevItem;
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m_Min = 0.0;
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m_Max = double.PositiveInfinity;
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if (trimDirection == TrimEdge.Start)
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{
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nextItem = sortedClips.FirstOrDefault(c => (DiscreteTime)c.start >= clipStart && (DiscreteTime)c.end > clipEnd);
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prevItem = sortedClips.LastOrDefault(c => (DiscreteTime)c.start <= clipStart && (DiscreteTime)c.end < clipEnd);
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if (prevItem != null)
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m_Min = prevItem.start + EditModeUtils.BlendDuration(prevItem, TrimEdge.Start) + TimelineClip.kMinDuration;
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if (nextItem != null)
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m_Max = nextItem.start;
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m_ItemToBeReplaced = prevItem;
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if (m_ItemToBeReplaced != null)
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m_ClipOriginalEdgeValue = m_ItemToBeReplaced.end;
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}
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else
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{
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nextItem = sortedClips.FirstOrDefault(c => c != overlapped && (DiscreteTime)c.start >= clipStart && (DiscreteTime)c.end >= clipEnd);
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prevItem = sortedClips.LastOrDefault(c => c != overlapped && (DiscreteTime)c.start <= clipStart && (DiscreteTime)c.end <= clipEnd);
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if (prevItem != null)
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m_Min = prevItem.end;
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if (nextItem != null)
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m_Max = nextItem.end - EditModeUtils.BlendDuration(nextItem, TrimEdge.End) - TimelineClip.kMinDuration;
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m_ItemToBeReplaced = nextItem;
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if (m_ItemToBeReplaced != null)
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m_ClipOriginalEdgeValue = m_ItemToBeReplaced.start;
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}
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m_TrimReplace = false;
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}
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public void TrimStart(ITrimmable item, double time)
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{
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time = Math.Min(Math.Max(time, m_Min), m_Max);
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if (m_ItemToBeReplaced != null)
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{
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if (!m_TrimReplace)
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m_TrimReplace = item.start >= m_ItemToBeReplaced.end;
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}
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time = Math.Max(time, 0.0);
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item.SetStart(time);
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if (m_ItemToBeReplaced != null && m_TrimReplace)
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{
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var prevEnd = Math.Min(item.start, m_ClipOriginalEdgeValue);
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m_ItemToBeReplaced.SetEnd(prevEnd, false);
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}
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}
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public void TrimEnd(ITrimmable item, double time, bool affectTimeScale)
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{
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time = Math.Min(Math.Max(time, m_Min), m_Max);
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if (m_ItemToBeReplaced != null)
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{
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if (!m_TrimReplace)
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m_TrimReplace = item.end <= m_ItemToBeReplaced.start;
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}
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item.SetEnd(time, affectTimeScale);
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if (m_ItemToBeReplaced != null && m_TrimReplace)
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{
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var nextStart = Math.Max(item.end, m_ClipOriginalEdgeValue);
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m_ItemToBeReplaced.SetStart(nextStart);
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}
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}
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public void DrawGUI(WindowState state, Rect bounds, Color color, TrimEdge edge)
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{
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bool shouldDraw = m_ItemToBeReplaced != null && (edge == TrimEdge.End && m_Item.end > m_ClipOriginalEdgeValue) ||
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(edge == TrimEdge.Start && m_Item.start < m_ClipOriginalEdgeValue);
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if (shouldDraw)
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{
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var cursorType = TimelineCursors.CursorType.Replace;
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if (EditModeUtils.HasBlends(m_Item, edge))
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{
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color = DirectorStyles.kMixToolColor;
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cursorType = (edge == TrimEdge.End)
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? TimelineCursors.CursorType.MixRight
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: TimelineCursors.CursorType.MixLeft;
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}
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EditModeGUIUtils.DrawBoundsEdge(bounds, color, edge);
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TimelineCursors.SetCursor(cursorType);
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}
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else
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{
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TimelineCursors.ClearCursor();
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}
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