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324 lines
11 KiB
C#
324 lines
11 KiB
C#
1 year ago
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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 UnityEditor.IMGUI.Controls;
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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 TimelineGroupGUI : TimelineTrackBaseGUI
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{
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protected DirectorStyles m_Styles;
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protected Rect m_TreeViewRect = new Rect(0, 0, 0, 0);
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protected GUIContent m_ProblemIcon = new GUIContent();
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bool m_MustRecomputeUnions = true;
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int m_GroupDepth;
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readonly bool m_IsReferencedTrack;
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readonly List<TimelineClipUnion> m_Unions = new List<TimelineClipUnion>();
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public override Rect boundingRect
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{
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get { return ToWindowSpace(m_TreeViewRect); }
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}
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public Rect ToWindowSpace(Rect localRect)
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{
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localRect.position += treeViewToWindowTransformation;
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return localRect;
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}
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public override bool expandable
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{
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get { return !m_IsRoot; }
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}
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// The expanded rectangle (contains children) as calculated by the the tree gui
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public Rect expandedRect { get; set; }
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// The row rectangle (header only) as calculated by the tree gui
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public Rect rowRect { get; set; }
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// the drop rectangle as set by the tree gui when targetted by a drag and drop
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public Rect dropRect { get; set; }
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public TimelineGroupGUI(TreeViewController treeview, TimelineTreeViewGUI treeviewGUI, int id, int depth, TreeViewItem parent, string displayName, TrackAsset trackAsset, bool isRoot)
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: base(id, depth, parent, displayName, trackAsset, treeview, treeviewGUI)
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{
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m_Styles = DirectorStyles.Instance;
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m_IsRoot = isRoot;
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var trackPath = AssetDatabase.GetAssetPath(trackAsset);
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var sequencePath = AssetDatabase.GetAssetPath(treeviewGUI.TimelineWindow.state.editSequence.asset);
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if (trackPath != sequencePath)
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m_IsReferencedTrack = true;
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m_GroupDepth = CalculateGroupDepth(parent);
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}
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public virtual float GetHeight(WindowState state)
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{
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// group tracks don't scale in height
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return TrackEditor.DefaultTrackHeight;
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}
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public override void OnGraphRebuilt() { }
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static int CalculateGroupDepth(TreeViewItem parent)
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{
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int depth = 0;
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bool done = false;
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do
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{
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var gui = parent as TimelineGroupGUI;
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if (gui == null || gui.track == null)
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done = true;
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else
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{
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if (gui.track is GroupTrack)
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depth++;
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parent = parent.parent;
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}
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}
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while (!done);
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return depth;
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}
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void DrawTrackButtons(Rect headerRect, WindowState state)
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{
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const float buttonSize = WindowConstants.trackHeaderButtonSize;
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const float padding = WindowConstants.trackHeaderButtonPadding;
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var buttonRect = new Rect(headerRect.xMax - buttonSize - padding, headerRect.y + ((headerRect.height - buttonSize) / 2f), buttonSize, buttonSize);
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if (GUI.Button(buttonRect, EditorGUIUtility.IconContent("CreateAddNew"), m_Styles.trackGroupAddButton))
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{
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// the drop down will apply to all selected tracks
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if (!SelectionManager.Contains(track))
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{
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SelectionManager.Clear();
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SelectionManager.Add(track);
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}
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SequencerContextMenu.ShowNewTracksContextMenu(SelectionManager.SelectedTracks().ToArray(), TimelineWindow.state, buttonRect);
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}
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buttonRect.x -= buttonSize;
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var suitePadding = DrawButtonSuite(2, ref buttonRect);
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DrawMuteButton(buttonRect, state);
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buttonRect.x -= buttonSize + padding;
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DrawLockButton(buttonRect, state);
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buttonRect.x -= suitePadding;
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}
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public void SetExpanded(bool expanded)
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{
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var collapseChanged = expanded != isExpanded;
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isExpanded = expanded;
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if (collapseChanged)
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{
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track.SetCollapsed(!expanded);
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m_MustRecomputeUnions = true;
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}
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}
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public override void Draw(Rect headerRect, Rect contentRect, WindowState state)
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{
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if (track == null || m_IsRoot)
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return;
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if (m_MustRecomputeUnions)
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RecomputeRectUnions();
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if (depth == 1)
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Graphics.DrawBackgroundRect(state, headerRect);
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var background = headerRect;
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background.height = expandedRect.height;
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var groupColor = TrackResourceCache.GetTrackColor(track);
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m_TreeViewRect = contentRect;
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var col = groupColor;
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var isSelected = SelectionManager.Contains(track);
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if (isSelected)
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col = DirectorStyles.Instance.customSkin.colorSelection;
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else if (isDropTarget)
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col = DirectorStyles.Instance.customSkin.colorDropTarget;
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else
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{
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if (m_GroupDepth % 2 == 1)
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{
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float h, s, v;
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Color.RGBToHSV(col, out h, out s, out v);
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v += 0.06f;
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col = Color.HSVToRGB(h, s, v);
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}
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}
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if (background.width > 0)
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{
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using (new GUIColorOverride(col))
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GUI.Box(background, GUIContent.none, m_Styles.groupBackground);
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}
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var trackRectBackground = headerRect;
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trackRectBackground.xMin += background.width;
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trackRectBackground.width = contentRect.width;
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trackRectBackground.height = background.height;
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if (isSelected)
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{
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col = state.IsEditingASubTimeline()
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? m_Styles.customSkin.colorTrackSubSequenceBackgroundSelected
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: m_Styles.customSkin.colorTrackBackgroundSelected;
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}
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else
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{
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col = m_Styles.customSkin.colorGroupTrackBackground;
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}
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EditorGUI.DrawRect(trackRectBackground, col);
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if (!isExpanded && children != null && children.Count > 0)
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{
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var collapsedTrackRect = contentRect;
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foreach (var u in m_Unions)
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u.Draw(collapsedTrackRect, state);
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}
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using (new GUIGroupScope(headerRect))
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{
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var groupRect = new Rect(0, 0, headerRect.width, headerRect.height);
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DrawName(groupRect, isSelected);
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DrawTrackButtons(groupRect, state);
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}
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if (IsTrackRecording(state))
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{
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using (new GUIColorOverride(DirectorStyles.Instance.customSkin.colorTrackBackgroundRecording))
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GUI.Label(background, GUIContent.none, m_Styles.displayBackground);
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}
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// is this a referenced track?
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if (m_IsReferencedTrack)
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{
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var refRect = contentRect;
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refRect.x = state.timeAreaRect.xMax - 20.0f;
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refRect.y += 5.0f;
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refRect.width = 30.0f;
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GUI.Label(refRect, DirectorStyles.referenceTrackLabel, EditorStyles.label);
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}
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var bgRect = contentRect;
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if (track as GroupTrack != null || AllChildrenMuted(this))
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bgRect.height = expandedRect.height;
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DrawTrackState(contentRect, bgRect, track);
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}
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void DrawName(Rect rect, bool isSelected)
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{
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var labelRect = rect;
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labelRect.xMin += 20;
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var actorName = track != null ? track.name : "missing";
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labelRect.width = m_Styles.groupFont.CalcSize(new GUIContent(actorName)).x;
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labelRect.width = Math.Max(labelRect.width, 50.0f);
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// if we aren't bound to anything, we show a text field that allows to rename the actor
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// otherwise we show a ObjectField to allow binding to a go
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if (track != null && track is GroupTrack)
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{
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var textColor = m_Styles.groupFont.normal.textColor;
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if (isSelected)
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textColor = Color.white;
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string newName;
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EditorGUI.BeginChangeCheck();
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using (new StyleNormalColorOverride(m_Styles.groupFont, textColor))
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{
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newName = EditorGUI.DelayedTextField(labelRect, GUIContent.none, track.GetInstanceID(), track.name, m_Styles.groupFont);
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}
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if (EditorGUI.EndChangeCheck() && !string.IsNullOrEmpty(newName))
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{
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track.name = newName;
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displayName = track.name;
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}
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}
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}
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protected bool IsSubTrack()
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{
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if (track == null)
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return false;
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var parentTrack = track.parent as TrackAsset;
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if (parentTrack == null)
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return false;
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return parentTrack.GetType() != typeof(GroupTrack);
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}
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protected TrackAsset ParentTrack()
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{
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if (IsSubTrack())
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return track.parent as TrackAsset;
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return null;
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}
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// is there currently a recording track
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bool IsTrackRecording(WindowState state)
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{
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if (!state.recording)
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return false;
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if (track.GetType() != typeof(GroupTrack))
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return false;
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return state.GetArmedTrack(track) != null;
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}
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void RecomputeRectUnions()
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{
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m_MustRecomputeUnions = false;
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m_Unions.Clear();
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if (children == null)
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return;
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foreach (var c in children.OfType<TimelineTrackGUI>())
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{
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c.RebuildGUICacheIfNecessary();
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m_Unions.AddRange(TimelineClipUnion.Build(c.clips));
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}
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}
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static bool AllChildrenMuted(TimelineGroupGUI groupGui)
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{
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if (!groupGui.track.muted)
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return false;
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if (groupGui.children == null)
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return true;
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return groupGui.children.OfType<TimelineGroupGUI>().All(AllChildrenMuted);
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}
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protected static float DrawButtonSuite(int numberOfButtons, ref Rect buttonRect)
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{
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var style = DirectorStyles.Instance.trackButtonSuite;
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var buttonWidth = WindowConstants.trackHeaderButtonSize * numberOfButtons + WindowConstants.trackHeaderButtonPadding * Math.Max(0, numberOfButtons - 1);
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var suiteWidth = buttonWidth + style.padding.right + style.padding.left;
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var rect = new Rect(buttonRect.xMax - style.margin.right - suiteWidth, buttonRect.y + style.margin.top, suiteWidth, buttonRect.height);
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if (Event.current.type == EventType.Repaint)
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style.Draw(rect, false, false, false, false);
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buttonRect.x -= style.margin.right + style.padding.right;
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return style.margin.left + style.padding.left;
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}
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}
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}
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