d25cb7a9da
Fix curve tangent colors to match editor style Fix curve tangents editing to have stable movement no matter the view scale #2455
2324 lines
77 KiB
C#
2324 lines
77 KiB
C#
// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using FlaxEditor.CustomEditors;
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using FlaxEditor.GUI.ContextMenu;
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using FlaxEditor.Options;
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using FlaxEngine;
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using FlaxEngine.GUI;
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namespace FlaxEditor.GUI
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{
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/// <summary>
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/// The generic curve editor control.
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/// </summary>
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/// <typeparam name="T">The keyframe value type.</typeparam>
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/// <seealso cref="CurveEditorBase" />
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public abstract partial class CurveEditor<T> : CurveEditorBase where T : new()
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{
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private class Popup : ContextMenuBase
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{
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private CustomEditorPresenter _presenter;
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private CurveEditor<T> _editor;
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private List<int> _keyframeIndices;
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private bool _isDirty;
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public Popup(CurveEditor<T> editor, object[] selection, List<int> keyframeIndices = null, float height = 140.0f)
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: this(editor, height)
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{
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_presenter.Select(selection);
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_presenter.OpenAllGroups();
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_keyframeIndices = keyframeIndices;
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if (keyframeIndices != null && selection.Length != keyframeIndices.Count)
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throw new Exception();
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}
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private Popup(CurveEditor<T> editor, float height)
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{
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_editor = editor;
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const float width = 340.0f;
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Size = new Float2(width, height);
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var panel1 = new Panel(ScrollBars.Vertical)
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{
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Bounds = new Rectangle(0, 0.0f, width, height),
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Parent = this
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};
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_presenter = new CustomEditorPresenter(null);
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_presenter.Panel.AnchorPreset = AnchorPresets.HorizontalStretchTop;
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_presenter.Panel.IsScrollable = true;
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_presenter.Panel.Parent = panel1;
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_presenter.Modified += OnModified;
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}
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private void OnModified()
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{
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if (!_isDirty)
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{
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_editor.OnEditingStart();
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}
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_isDirty = true;
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if (_keyframeIndices != null)
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{
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for (int i = 0; i < _presenter.SelectionCount; i++)
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{
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_editor.SetKeyframeInternal(_keyframeIndices[i], _presenter.Selection[i]);
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}
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}
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else if (_presenter.Selection[0] is IAllKeyframesProxy proxy)
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{
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proxy.Apply();
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}
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_editor.UpdateFPS();
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_editor.UpdateKeyframes();
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_editor.UpdateTooltips();
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}
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/// <inheritdoc />
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protected override void OnShow()
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{
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Focus();
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base.OnShow();
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}
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/// <inheritdoc />
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public override void Hide()
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{
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if (!Visible)
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return;
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Focus(null);
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if (_isDirty)
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{
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_editor.OnEdited();
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_editor.OnEditingEnd();
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}
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if (_editor._popup == this)
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_editor._popup = null;
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_presenter = null;
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_editor = null;
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_keyframeIndices = null;
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base.Hide();
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}
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/// <inheritdoc />
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public override bool OnKeyDown(KeyboardKeys key)
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{
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if (base.OnKeyDown(key))
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return true;
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if (key == KeyboardKeys.Escape)
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{
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Hide();
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return true;
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}
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return false;
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}
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}
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/// <summary>
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/// The single keyframe control.
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/// </summary>
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protected class KeyframePoint : Control
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{
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/// <summary>
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/// The parent curve editor.
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/// </summary>
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public CurveEditor<T> Editor;
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/// <summary>
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/// The keyframe index.
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/// </summary>
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public int Index;
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/// <summary>
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/// The component index.
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/// </summary>
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public int Component;
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/// <summary>
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/// Flag for selected keyframes.
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/// </summary>
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public bool IsSelected;
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/// <summary>
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/// Gets the point time and value on a curve.
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/// </summary>
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public Float2 Point => Editor.GetKeyframePoint(Index, Component);
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/// <summary>
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/// Gets the time of the keyframe point.
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/// </summary>
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public float Time => Editor.GetKeyframeTime(Index);
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/// <inheritdoc />
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public override void Draw()
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{
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var style = Style.Current;
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var rect = new Rectangle(Float2.Zero, Size);
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var color = Editor.ShowCollapsed ? style.ForegroundDisabled : Editor.Colors[Component];
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if (IsSelected)
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color = Editor.ContainsFocus ? style.SelectionBorder : Color.Lerp(style.ForegroundDisabled, style.SelectionBorder, 0.4f);
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if (IsMouseOver)
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color *= 1.1f;
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Render2D.FillRectangle(rect, color);
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}
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/// <inheritdoc />
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public override bool OnMouseDoubleClick(Float2 location, MouseButton button)
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{
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if (base.OnMouseDoubleClick(location, button))
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return true;
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if (button == MouseButton.Left)
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{
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Editor.EditKeyframes(this, location, new List<int> { Index });
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return true;
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}
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return false;
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}
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/// <inheritdoc />
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protected override bool ShowTooltip => base.ShowTooltip && !Editor._contents._isMovingSelection;
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/// <summary>
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/// Updates the tooltip.
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/// </summary>
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public void UpdateTooltip()
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{
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var k = Editor.GetKeyframe(Index);
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var time = Editor.GetKeyframeTime(k);
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var value = Editor.GetKeyframeValue(k);
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if (Editor.ShowCollapsed)
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TooltipText = string.Format("Time: {0}, Value: {1}", time, value);
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else
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TooltipText = string.Format("Time: {0}, Value: {1}", time, Editor.Accessor.GetCurveValue(ref value, Component));
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}
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}
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/// <summary>
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/// The single keyframe tangent control.
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/// </summary>
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protected class TangentPoint : Control
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{
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/// <summary>
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/// The parent curve editor.
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/// </summary>
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public CurveEditor<T> Editor;
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/// <summary>
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/// The keyframe index.
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/// </summary>
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public int Index;
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/// <summary>
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/// The component index.
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/// </summary>
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public int Component;
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/// <summary>
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/// True if tangent is `In`, otherwise it's `Out`.
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/// </summary>
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public bool IsIn;
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/// <summary>
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/// The keyframe.
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/// </summary>
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public KeyframePoint Point;
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/// <summary>
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/// Gets the tangent value on curve.
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/// </summary>
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public float TangentValue
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{
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get => Editor.GetKeyframeTangentInternal(Index, IsIn, Component);
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set => Editor.SetKeyframeTangentInternal(Index, IsIn, Component, value);
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}
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internal float TangentOffset => 50.0f / Editor.ViewScale.X;
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/// <inheritdoc />
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public override void Draw()
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{
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var style = Style.Current;
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var thickness = 6.0f / Mathf.Max(Editor.ViewScale.X, 1.0f);
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var size = Size;
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var pointPos = PointFromParent(Point.Center);
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Render2D.DrawLine(size * 0.5f, pointPos, style.ForegroundDisabled, thickness);
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var rect = new Rectangle(Float2.Zero, size);
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var color = style.BorderSelected;
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if (IsMouseOver)
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color *= 1.1f;
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Render2D.FillRectangle(rect, color);
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}
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/// <summary>
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/// Updates the tooltip.
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/// </summary>
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public void UpdateTooltip()
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{
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TooltipText = string.Format("Tangent {0}: {1}", IsIn ? "in" : "out", TangentValue);
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}
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}
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/// <summary>
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/// The timeline intervals metric area size (in pixels).
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/// </summary>
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protected static readonly float LabelsSize = 10.0f;
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/// <summary>
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/// The timeline units per second (on time axis).
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/// </summary>
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public static readonly float UnitsPerSecond = 100.0f;
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/// <summary>
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/// The keyframes size.
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/// </summary>
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protected static readonly Float2 KeyframesSize = new Float2(7.0f);
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/// <summary>
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/// The colors for the keyframe points.
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/// </summary>
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protected Color[] Colors = Utilities.Utils.CurveKeyframesColors;
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/// <summary>
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/// The curve time/value axes tick steps.
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/// </summary>
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protected double[] TickSteps = Utilities.Utils.CurveTickSteps;
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/// <summary>
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/// The curve contents area.
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/// </summary>
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protected ContentsBase _contents;
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/// <summary>
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/// The main UI panel with scroll bars.
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/// </summary>
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protected Panel _mainPanel;
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/// <summary>
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/// True if refresh keyframes positioning before drawing.
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/// </summary>
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protected bool _refreshAfterEdit;
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/// <summary>
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/// True if curve is collapsed.
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/// </summary>
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protected bool _showCollapsed;
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private float[] _tickStrengths;
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private Popup _popup;
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private float? _fps;
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private Color _contentsColor;
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private Color _linesColor;
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private Color _labelsColor;
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private Font _labelsFont;
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/// <summary>
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/// The keyframe UI points.
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/// </summary>
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protected readonly List<KeyframePoint> _points = new List<KeyframePoint>();
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/// <summary>
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/// The tangents UI points.
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/// </summary>
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protected readonly TangentPoint[] _tangents = new TangentPoint[2];
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/// <inheritdoc />
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public override Float2 ViewOffset
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{
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get => _mainPanel.ViewOffset;
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set
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{
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_mainPanel.ViewOffset = value;
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_mainPanel.FastScroll();
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}
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}
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/// <inheritdoc />
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public override Float2 ViewScale
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{
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get => _contents.Scale;
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set => _contents.Scale = Float2.Clamp(value, new Float2(0.0001f), new Float2(1000.0f));
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}
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/// <summary>
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/// The keyframes data accessor.
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/// </summary>
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public readonly IKeyframeAccess<T> Accessor = new KeyframeAccess() as IKeyframeAccess<T>;
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/// <summary>
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/// Gets a value indicating whether user is editing the curve.
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/// </summary>
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public bool IsUserEditing => _popup != null || _contents._leftMouseDown;
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/// <summary>
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/// The default value.
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/// </summary>
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public T DefaultValue;
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/// <inheritdoc />
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public override ScrollBars ScrollBars
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{
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get => _mainPanel.ScrollBars;
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set => _mainPanel.ScrollBars = value;
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}
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/// <inheritdoc />
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public override Type ValueType => typeof(T);
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/// <inheritdoc />
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public override float? FPS
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{
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get => _fps;
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set
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{
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if (_fps.HasValue == value.HasValue && (!value.HasValue || Mathf.NearEqual(_fps.Value, value.Value)))
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return;
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_fps = value;
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UpdateFPS();
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}
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}
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/// <inheritdoc />
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public override bool ShowCollapsed
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{
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get => _showCollapsed;
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set
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{
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if (_showCollapsed == value)
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return;
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_showCollapsed = value;
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UpdateKeyframes();
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UpdateTangents();
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if (value)
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{
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// Synchronize selection for curve points when collapsed so all points fo the keyframe are selected
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for (var i = 0; i < _points.Count; i++)
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{
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var p = _points[i];
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if (p.IsSelected)
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{
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for (var j = 0; j < _points.Count; j++)
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{
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var q = _points[j];
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if (q.Index == p.Index)
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q.IsSelected = true;
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}
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}
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}
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ShowWholeCurve();
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}
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}
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}
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/// <summary>
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/// Occurs when keyframes collection gets changed (keyframe added or removed).
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/// </summary>
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public event Action KeyframesChanged;
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/// <summary>
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/// Initializes a new instance of the <see cref="CurveEditor{T}"/> class.
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/// </summary>
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protected CurveEditor()
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{
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Accessor.GetDefaultValue(out DefaultValue);
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var style = Style.Current;
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_contentsColor = style.Background.RGBMultiplied(0.7f);
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_linesColor = style.ForegroundDisabled.RGBMultiplied(0.7f);
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_labelsColor = style.ForegroundDisabled;
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_labelsFont = style.FontSmall;
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_mainPanel = new Panel(ScrollBars.Both)
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{
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ScrollMargin = new Margin(150.0f),
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AlwaysShowScrollbars = true,
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AnchorPreset = AnchorPresets.StretchAll,
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Offsets = Margin.Zero,
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Parent = this
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};
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_contents = new ContentsBase(this)
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{
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ClipChildren = false,
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CullChildren = false,
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AutoFocus = false,
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Parent = _mainPanel,
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Bounds = Rectangle.Empty,
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};
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}
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/// <summary>
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/// Updates the keyframes to match the FPS.
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/// </summary>
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protected abstract void UpdateFPS();
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/// <summary>
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/// Updates the keyframes tooltips.
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/// </summary>
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protected void UpdateTooltips()
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{
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for (var i = 0; i < _points.Count; i++)
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_points[i].UpdateTooltip();
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}
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/// <summary>
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/// Called when keyframes collection gets changed (keyframe added or removed).
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/// </summary>
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protected virtual void OnKeyframesChanged()
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{
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KeyframesChanged?.Invoke();
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}
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/// <summary>
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/// Evaluates the animation curve value at the specified time.
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/// </summary>
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/// <param name="result">The interpolated value from the curve at provided time.</param>
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/// <param name="time">The time to evaluate the curve at.</param>
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/// <param name="loop">If true the curve will loop when it goes past the end or beginning. Otherwise the curve value will be clamped.</param>
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public abstract void Evaluate(out T result, float time, bool loop = false);
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/// <summary>
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/// Gets the time of the keyframe.
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/// </summary>
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/// <param name="index">The keyframe index.</param>
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/// <returns>The keyframe time.</returns>
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protected abstract float GetKeyframeTime(int index);
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/// <summary>
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/// Gets the time of the keyframe.
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/// </summary>
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/// <param name="keyframe">The keyframe object.</param>
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/// <returns>The keyframe time.</returns>
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protected abstract float GetKeyframeTime(object keyframe);
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/// <summary>
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/// Gets the value of the keyframe.
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/// </summary>
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/// <param name="keyframe">The keyframe object.</param>
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/// <returns>The keyframe value.</returns>
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protected abstract T GetKeyframeValue(object keyframe);
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/// <summary>
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/// Gets the value of the keyframe (single component).
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/// </summary>
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/// <param name="keyframe">The keyframe object.</param>
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/// <param name="component">The keyframe value component index.</param>
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/// <returns>The keyframe component value.</returns>
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protected abstract float GetKeyframeValue(object keyframe, int component);
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/// <summary>
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/// Adds a new keyframe at the given location (in keyframes space).
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/// </summary>
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/// <param name="keyframesPos">The new keyframe position (in keyframes space).</param>
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protected abstract void AddKeyframe(Float2 keyframesPos);
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/// <summary>
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/// Sets the keyframe data (internally).
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/// </summary>
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/// <param name="index">The keyframe index.</param>
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/// <param name="keyframe">The keyframe to set.</param>
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protected abstract void SetKeyframeInternal(int index, object keyframe);
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/// <summary>
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/// Sets the keyframe data (internally).
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/// </summary>
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/// <param name="index">The keyframe index.</param>
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/// <param name="time">The time to set.</param>
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/// <param name="value">The value to set.</param>
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/// <param name="component">The value component.</param>
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protected abstract void SetKeyframeInternal(int index, float time, float value, int component);
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/// <summary>
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/// Gets the keyframe tangent value (internally).
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/// </summary>
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/// <param name="index">The keyframe index.</param>
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/// <param name="isIn">True if tangent is `In`, otherwise it's `Out`.</param>
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/// <param name="component">The value component index.</param>
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/// <returns>The tangent component value.</returns>
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protected abstract float GetKeyframeTangentInternal(int index, bool isIn, int component);
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/// <summary>
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/// Sets the keyframe tangent value (internally).
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/// </summary>
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/// <param name="index">The keyframe index.</param>
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/// <param name="isIn">True if tangent is `In`, otherwise it's `Out`.</param>
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/// <param name="component">The value component index.</param>
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/// <param name="value">The tangent component value.</param>
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protected abstract void SetKeyframeTangentInternal(int index, bool isIn, int component, float value);
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/// <summary>
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/// Removes the keyframes data (internally).
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/// </summary>
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/// <param name="indicesToRemove">The list of indices of the keyframes to remove.</param>
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protected abstract void RemoveKeyframesInternal(HashSet<int> indicesToRemove);
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/// <summary>
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/// Called when showing a context menu. Can be used to add custom buttons with actions.
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/// </summary>
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/// <param name="cm">The menu.</param>
|
|
/// <param name="selectionCount">The amount of selected keyframes.</param>
|
|
protected virtual void OnShowContextMenu(ContextMenu.ContextMenu cm, int selectionCount)
|
|
{
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets proxy object for all keyframes list.
|
|
/// </summary>
|
|
/// <returns>The proxy object.</returns>
|
|
protected abstract IAllKeyframesProxy GetAllKeyframesEditingProxy();
|
|
|
|
/// <summary>
|
|
/// Interface for keyframes editing proxy objects.
|
|
/// </summary>
|
|
protected interface IAllKeyframesProxy
|
|
{
|
|
/// <summary>
|
|
/// Applies the proxy data to the editor.
|
|
/// </summary>
|
|
void Apply();
|
|
}
|
|
|
|
private void EditAllKeyframes(Control control, Float2 pos)
|
|
{
|
|
_popup = new Popup(this, new object[] { GetAllKeyframesEditingProxy() }, null, 400.0f);
|
|
_popup.Show(control, pos);
|
|
}
|
|
|
|
private void EditKeyframes(Control control, Float2 pos)
|
|
{
|
|
var keyframeIndices = new List<int>();
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
if (!p.IsSelected || keyframeIndices.Contains(p.Index))
|
|
continue;
|
|
keyframeIndices.Add(p.Index);
|
|
}
|
|
EditKeyframes(control, pos, keyframeIndices);
|
|
}
|
|
|
|
private void EditKeyframes(Control control, Float2 pos, List<int> keyframeIndices)
|
|
{
|
|
var selection = new object[keyframeIndices.Count];
|
|
var keyframes = GetKeyframes();
|
|
for (int i = 0; i < keyframeIndices.Count; i++)
|
|
selection[i] = keyframes[keyframeIndices[i]];
|
|
_popup = new Popup(this, selection, keyframeIndices);
|
|
_popup.Show(control, pos);
|
|
}
|
|
|
|
private void RemoveKeyframes()
|
|
{
|
|
if (KeyframesEditorContext != null)
|
|
KeyframesEditorContext.OnKeyframesDelete(this);
|
|
else
|
|
RemoveKeyframesInner();
|
|
}
|
|
|
|
private void CopyKeyframes(KeyframePoint point = null)
|
|
{
|
|
float? timeOffset = null;
|
|
if (point != null)
|
|
{
|
|
timeOffset = -point.Time;
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
if (_points[i].IsSelected)
|
|
{
|
|
timeOffset = -_points[i].Time;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
KeyframesEditorUtils.Copy(this, timeOffset);
|
|
}
|
|
|
|
private void RemoveKeyframesInner()
|
|
{
|
|
if (SelectionCount == 0)
|
|
return;
|
|
var indicesToRemove = new HashSet<int>();
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
if (p.IsSelected)
|
|
{
|
|
p.IsSelected = false;
|
|
indicesToRemove.Add(p.Index);
|
|
}
|
|
}
|
|
|
|
OnEditingStart();
|
|
RemoveKeyframesInternal(indicesToRemove);
|
|
OnKeyframesChanged();
|
|
OnEdited();
|
|
OnEditingEnd();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void ShowWholeCurve()
|
|
{
|
|
if (_points.Count == 0)
|
|
return;
|
|
_mainPanel.GetDesireClientArea(out var mainPanelArea);
|
|
ViewScale = ApplyUseModeMask(EnableZoom, mainPanelArea.Size / _contents.Size, ViewScale);
|
|
Float2 minPos = Float2.Maximum;
|
|
foreach (var point in _points)
|
|
{
|
|
var pos = point.PointToParent(point.Location);
|
|
Float2.Min(ref minPos, ref pos, out minPos);
|
|
}
|
|
var minPosPoint = _contents.PointToParent(ref minPos);
|
|
var scroll = new Float2(_mainPanel.HScrollBar?.TargetValue ?? 0, _mainPanel.VScrollBar?.TargetValue ?? 0);
|
|
scroll = ApplyUseModeMask(EnablePanning, minPosPoint, scroll);
|
|
if (_mainPanel.HScrollBar != null)
|
|
_mainPanel.HScrollBar.TargetValue = scroll.X;
|
|
if (_mainPanel.VScrollBar != null)
|
|
_mainPanel.VScrollBar.TargetValue = scroll.Y;
|
|
|
|
UpdateKeyframes();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void Evaluate(out object result, float time, bool loop = false)
|
|
{
|
|
Evaluate(out var value, time, loop);
|
|
result = value;
|
|
}
|
|
|
|
private int SelectionCount
|
|
{
|
|
get
|
|
{
|
|
int result = 0;
|
|
if (ShowCollapsed)
|
|
{
|
|
for (int i = 0; i < _points.Count; i++)
|
|
if (_points[i].Component == 0 && _points[i].IsSelected)
|
|
result++;
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < _points.Count; i++)
|
|
if (_points[i].IsSelected)
|
|
result++;
|
|
}
|
|
return result;
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void ClearSelection()
|
|
{
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
_points[i].IsSelected = false;
|
|
}
|
|
}
|
|
|
|
private void BulkSelectUpdate(bool select = true)
|
|
{
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
_points[i].IsSelected = select;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Selects all keyframes.
|
|
/// </summary>
|
|
public void SelectAll()
|
|
{
|
|
BulkSelectUpdate(true);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Deselects all keyframes.
|
|
/// </summary>
|
|
public void DeselectAll()
|
|
{
|
|
BulkSelectUpdate(false);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts the input point from curve editor control space into the keyframes time/value coordinates.
|
|
/// </summary>
|
|
/// <param name="point">The point.</param>
|
|
/// <param name="curveContentAreaBounds">The curve contents area bounds.</param>
|
|
/// <returns>The result.</returns>
|
|
protected Float2 PointToKeyframes(Float2 point, ref Rectangle curveContentAreaBounds)
|
|
{
|
|
// Curve Editor -> Main Panel
|
|
point = _mainPanel.PointFromParent(point);
|
|
|
|
// Main Panel -> Contents
|
|
point = _contents.PointFromParent(point);
|
|
|
|
// Contents -> Keyframes
|
|
return new Float2(
|
|
(point.X + _contents.Location.X) / UnitsPerSecond,
|
|
(point.Y + _contents.Location.Y - curveContentAreaBounds.Height) / -UnitsPerSecond
|
|
);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts the input point from the keyframes time/value coordinates into the curve editor control space.
|
|
/// </summary>
|
|
/// <param name="point">The point.</param>
|
|
/// <param name="curveContentAreaBounds">The curve contents area bounds.</param>
|
|
/// <returns>The result.</returns>
|
|
protected Float2 PointFromKeyframes(Float2 point, ref Rectangle curveContentAreaBounds)
|
|
{
|
|
// Keyframes -> Contents
|
|
point = new Float2(
|
|
point.X * UnitsPerSecond - _contents.Location.X,
|
|
point.Y * -UnitsPerSecond + curveContentAreaBounds.Height - _contents.Location.Y
|
|
);
|
|
|
|
// Contents -> Main Panel
|
|
point = _contents.PointToParent(point);
|
|
|
|
// Main Panel -> Curve Editor
|
|
return _mainPanel.PointToParent(point);
|
|
}
|
|
|
|
private void DrawAxis(Float2 axis, Rectangle viewRect, float min, float max, float pixelRange)
|
|
{
|
|
Utilities.Utils.DrawCurveTicks((decimal tick, float strength) =>
|
|
{
|
|
var p = PointFromKeyframes(axis * (float)tick, ref viewRect);
|
|
|
|
// Draw line
|
|
var lineRect = new Rectangle
|
|
(
|
|
viewRect.Location + (p - 0.5f) * axis,
|
|
Float2.Lerp(viewRect.Size, Float2.One, axis)
|
|
);
|
|
Render2D.FillRectangle(lineRect, _linesColor.AlphaMultiplied(strength));
|
|
|
|
// Draw label
|
|
string label = tick.ToString(CultureInfo.InvariantCulture);
|
|
var labelRect = new Rectangle
|
|
(
|
|
viewRect.X + 4.0f + (p.X * axis.X),
|
|
viewRect.Y - LabelsSize + (p.Y * axis.Y) + (viewRect.Size.Y * axis.X),
|
|
50,
|
|
LabelsSize
|
|
);
|
|
Render2D.DrawText(_labelsFont, label, labelRect, _labelsColor.AlphaMultiplied(strength), TextAlignment.Near, TextAlignment.Center, TextWrapping.NoWrap, 1.0f, 0.7f);
|
|
}, TickSteps, ref _tickStrengths, min, max, pixelRange);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Draws the curve.
|
|
/// </summary>
|
|
/// <param name="viewRect">The main panel client area used as a view bounds.</param>
|
|
protected abstract void DrawCurve(ref Rectangle viewRect);
|
|
|
|
/// <inheritdoc />
|
|
public override void Draw()
|
|
{
|
|
// Hack to refresh UI after keyframes edit
|
|
if (_refreshAfterEdit)
|
|
{
|
|
_refreshAfterEdit = false;
|
|
UpdateKeyframes();
|
|
}
|
|
|
|
var style = Style.Current;
|
|
var rect = new Rectangle(Float2.Zero, Size);
|
|
var viewRect = _mainPanel.GetClientArea();
|
|
|
|
// Draw background
|
|
if (ShowBackground)
|
|
{
|
|
Render2D.FillRectangle(rect, _contentsColor);
|
|
}
|
|
|
|
// Draw time and values axes
|
|
if (ShowAxes != UseMode.Off)
|
|
{
|
|
var upperLeft = PointToKeyframes(viewRect.Location, ref viewRect);
|
|
var bottomRight = PointToKeyframes(viewRect.Size, ref viewRect);
|
|
|
|
var min = Float2.Min(upperLeft, bottomRight);
|
|
var max = Float2.Max(upperLeft, bottomRight);
|
|
var pixelRange = (max - min) * ViewScale * UnitsPerSecond;
|
|
|
|
Render2D.PushClip(ref viewRect);
|
|
|
|
if ((ShowAxes & UseMode.Vertical) == UseMode.Vertical)
|
|
DrawAxis(Float2.UnitX, viewRect, min.X, max.X, pixelRange.X);
|
|
if ((ShowAxes & UseMode.Horizontal) == UseMode.Horizontal)
|
|
DrawAxis(Float2.UnitY, viewRect, min.Y, max.Y, pixelRange.Y);
|
|
|
|
Render2D.PopClip();
|
|
}
|
|
|
|
// Draw curve
|
|
if (!_showCollapsed)
|
|
{
|
|
Render2D.PushClip(ref rect);
|
|
DrawCurve(ref viewRect);
|
|
Render2D.PopClip();
|
|
}
|
|
|
|
// Draw selection rectangle
|
|
if (_contents._leftMouseDown && !_contents._isMovingSelection && !_contents._isMovingTangent)
|
|
{
|
|
var selectionRect = Rectangle.FromPoints
|
|
(
|
|
_mainPanel.PointToParent(_contents.PointToParent(_contents._leftMouseDownPos)),
|
|
_mainPanel.PointToParent(_contents.PointToParent(_contents._mousePos))
|
|
);
|
|
Render2D.FillRectangle(selectionRect, style.Selection);
|
|
Render2D.DrawRectangle(selectionRect, style.SelectionBorder);
|
|
}
|
|
|
|
base.Draw();
|
|
|
|
// Draw border
|
|
if (ContainsFocus)
|
|
{
|
|
Render2D.DrawRectangle(rect, style.BackgroundSelected);
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void OnSizeChanged()
|
|
{
|
|
base.OnSizeChanged();
|
|
|
|
UpdateKeyframes();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override bool OnKeyDown(KeyboardKeys key)
|
|
{
|
|
if (base.OnKeyDown(key))
|
|
return true;
|
|
|
|
InputOptions options = Editor.Instance.Options.Options.Input;
|
|
if (options.SelectAll.Process(this))
|
|
{
|
|
SelectAll();
|
|
UpdateTangents();
|
|
return true;
|
|
}
|
|
else if (options.DeselectAll.Process(this))
|
|
{
|
|
DeselectAll();
|
|
UpdateTangents();
|
|
return true;
|
|
}
|
|
else if (options.Delete.Process(this))
|
|
{
|
|
RemoveKeyframes();
|
|
return true;
|
|
}
|
|
else if (options.Copy.Process(this))
|
|
{
|
|
CopyKeyframes();
|
|
return true;
|
|
}
|
|
else if (options.Paste.Process(this))
|
|
{
|
|
KeyframesEditorUtils.Paste(this);
|
|
return true;
|
|
}
|
|
else if (options.FocusSelection.Process(this))
|
|
{
|
|
ShowWholeCurve();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnDestroy()
|
|
{
|
|
_mainPanel = null;
|
|
_contents = null;
|
|
_popup = null;
|
|
_points.Clear();
|
|
_labelsFont = null;
|
|
Colors = null;
|
|
DefaultValue = default;
|
|
TickSteps = null;
|
|
_tickStrengths = null;
|
|
KeyframesChanged = null;
|
|
KeyframesEditorContext = null;
|
|
|
|
base.OnDestroy();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// The linear curve editor control.
|
|
/// </summary>
|
|
/// <typeparam name="T">The keyframe value type.</typeparam>
|
|
/// <seealso cref="LinearCurve{T}"/>
|
|
/// <seealso cref="CurveEditor{T}"/>
|
|
/// <seealso cref="CurveEditorBase" />
|
|
public class LinearCurveEditor<T> : CurveEditor<T> where T : new()
|
|
{
|
|
/// <summary>
|
|
/// The keyframes collection.
|
|
/// </summary>
|
|
protected List<LinearCurve<T>.Keyframe> _keyframes = new List<LinearCurve<T>.Keyframe>();
|
|
|
|
/// <summary>
|
|
/// Gets the keyframes collection (read-only).
|
|
/// </summary>
|
|
public IReadOnlyList<LinearCurve<T>.Keyframe> Keyframes => _keyframes;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="LinearCurveEditor{T}"/> class.
|
|
/// </summary>
|
|
public LinearCurveEditor()
|
|
{
|
|
for (int i = 0; i < _tangents.Length; i++)
|
|
{
|
|
_tangents[i] = new TangentPoint
|
|
{
|
|
AutoFocus = false,
|
|
Size = KeyframesSize,
|
|
Editor = this,
|
|
Component = i / 2,
|
|
Parent = _contents,
|
|
Visible = false,
|
|
IsIn = false,
|
|
};
|
|
}
|
|
for (int i = 0; i < _tangents.Length; i += 2)
|
|
{
|
|
_tangents[i].IsIn = true;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Adds the new keyframe.
|
|
/// </summary>
|
|
/// <param name="k">The keyframe to add.</param>
|
|
/// <returns>The index of the keyframe.</returns>
|
|
public int AddKeyframe(LinearCurve<T>.Keyframe k)
|
|
{
|
|
var eps = Mathf.Epsilon;
|
|
if (FPS.HasValue)
|
|
{
|
|
float fps = FPS.Value;
|
|
k.Time = Mathf.Floor(k.Time * fps) / fps;
|
|
eps = 1.0f / fps;
|
|
}
|
|
|
|
int pos = 0;
|
|
while (pos < _keyframes.Count && _keyframes[pos].Time < k.Time)
|
|
pos++;
|
|
if (_keyframes.Count > pos && Mathf.Abs(_keyframes[pos].Time - k.Time) < eps)
|
|
_keyframes[pos] = k;
|
|
else
|
|
_keyframes.Insert(pos, k);
|
|
|
|
OnKeyframesChanged();
|
|
OnEdited();
|
|
return pos;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets the keyframes collection.
|
|
/// </summary>
|
|
/// <param name="keyframes">The keyframes.</param>
|
|
public void SetKeyframes(IEnumerable<LinearCurve<T>.Keyframe> keyframes)
|
|
{
|
|
if (keyframes == null)
|
|
throw new ArgumentNullException(nameof(keyframes));
|
|
var keyframesArray = keyframes as LinearCurve<T>.Keyframe[] ?? keyframes.ToArray();
|
|
if (_keyframes.SequenceEqual(keyframesArray))
|
|
return;
|
|
if (keyframesArray.Length > MaxKeyframes)
|
|
{
|
|
var tmp = keyframesArray;
|
|
keyframesArray = new LinearCurve<T>.Keyframe[MaxKeyframes];
|
|
Array.Copy(tmp, keyframesArray, MaxKeyframes);
|
|
}
|
|
|
|
_keyframes.Clear();
|
|
_keyframes.AddRange(keyframesArray);
|
|
_keyframes.Sort((a, b) => a.Time.CompareTo(b.Time));
|
|
|
|
UpdateFPS();
|
|
OnKeyframesChanged();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void UpdateFPS()
|
|
{
|
|
if (FPS.HasValue)
|
|
{
|
|
float fps = FPS.Value;
|
|
for (int i = 0; i < _keyframes.Count; i++)
|
|
{
|
|
var k = _keyframes[i];
|
|
k.Time = Mathf.Floor(k.Time * fps) / fps;
|
|
_keyframes[i] = k;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the keyframe point (in keyframes space).
|
|
/// </summary>
|
|
/// <param name="k">The keyframe.</param>
|
|
/// <param name="component">The keyframe value component index.</param>
|
|
/// <returns>The point in time/value space.</returns>
|
|
private Float2 GetKeyframePoint(ref LinearCurve<T>.Keyframe k, int component)
|
|
{
|
|
return new Float2(k.Time, Accessor.GetCurveValue(ref k.Value, component));
|
|
}
|
|
|
|
private void DrawLine(LinearCurve<T>.Keyframe startK, LinearCurve<T>.Keyframe endK, int component, ref Rectangle viewRect)
|
|
{
|
|
var start = GetKeyframePoint(ref startK, component);
|
|
var end = GetKeyframePoint(ref endK, component);
|
|
|
|
var p1 = PointFromKeyframes(start, ref viewRect);
|
|
var p2 = PointFromKeyframes(end, ref viewRect);
|
|
|
|
var color = Colors[component].RGBMultiplied(0.6f);
|
|
Render2D.DrawLine(p1, p2, color, 1.6f);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void OnKeyframesChanged()
|
|
{
|
|
var components = Accessor.GetCurveComponents();
|
|
while (_points.Count > _keyframes.Count * components)
|
|
{
|
|
var last = _points.Count - 1;
|
|
_points[last].Dispose();
|
|
_points.RemoveAt(last);
|
|
}
|
|
|
|
while (_points.Count < _keyframes.Count * components)
|
|
{
|
|
_points.Add(new KeyframePoint
|
|
{
|
|
AutoFocus = false,
|
|
Size = KeyframesSize,
|
|
Editor = this,
|
|
Index = _points.Count / components,
|
|
Component = _points.Count % components,
|
|
Parent = _contents,
|
|
});
|
|
|
|
_refreshAfterEdit = true;
|
|
}
|
|
|
|
UpdateKeyframes();
|
|
UpdateTooltips();
|
|
|
|
base.OnKeyframesChanged();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void Evaluate(out T result, float time, bool loop = false)
|
|
{
|
|
var curve = new LinearCurve<T>
|
|
{
|
|
Keyframes = _keyframes.ToArray()
|
|
};
|
|
curve.Evaluate(out result, time, loop);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeTime(int index)
|
|
{
|
|
return _keyframes[index].Time;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeTime(object keyframe)
|
|
{
|
|
return ((LinearCurve<T>.Keyframe)keyframe).Time;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override T GetKeyframeValue(object keyframe)
|
|
{
|
|
return ((LinearCurve<T>.Keyframe)keyframe).Value;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeValue(object keyframe, int component)
|
|
{
|
|
var value = ((LinearCurve<T>.Keyframe)keyframe).Value;
|
|
return Accessor.GetCurveValue(ref value, component);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void AddKeyframe(Float2 keyframesPos)
|
|
{
|
|
var k = new LinearCurve<T>.Keyframe
|
|
{
|
|
Time = keyframesPos.X,
|
|
};
|
|
var components = Accessor.GetCurveComponents();
|
|
for (int component = 0; component < components; component++)
|
|
{
|
|
Accessor.SetCurveValue(keyframesPos.Y, ref k.Value, component);
|
|
}
|
|
OnEditingStart();
|
|
AddKeyframe(k);
|
|
OnEditingEnd();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetKeyframeInternal(int index, object keyframe)
|
|
{
|
|
_keyframes[index] = (LinearCurve<T>.Keyframe)keyframe;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetKeyframeInternal(int index, float time, float value, int component)
|
|
{
|
|
var k = _keyframes[index];
|
|
k.Time = time;
|
|
Accessor.SetCurveValue(value, ref k.Value, component);
|
|
_keyframes[index] = k;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeTangentInternal(int index, bool isIn, int component)
|
|
{
|
|
return 0.0f;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetKeyframeTangentInternal(int index, bool isIn, int component, float value)
|
|
{
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void RemoveKeyframesInternal(HashSet<int> indicesToRemove)
|
|
{
|
|
var keyframes = _keyframes;
|
|
_keyframes = new List<LinearCurve<T>.Keyframe>();
|
|
for (int i = 0; i < keyframes.Count; i++)
|
|
{
|
|
if (!indicesToRemove.Contains(i))
|
|
_keyframes.Add(keyframes[i]);
|
|
}
|
|
}
|
|
|
|
sealed class AllKeyframesProxy : IAllKeyframesProxy
|
|
{
|
|
[HideInEditor, NoSerialize]
|
|
public LinearCurveEditor<T> Editor;
|
|
|
|
[Collection(CanReorderItems = false, Spacing = 10)]
|
|
public LinearCurve<T>.Keyframe[] Keyframes;
|
|
|
|
public void Apply()
|
|
{
|
|
Editor.SetKeyframes(Keyframes);
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override IAllKeyframesProxy GetAllKeyframesEditingProxy()
|
|
{
|
|
return new AllKeyframesProxy
|
|
{
|
|
Editor = this,
|
|
Keyframes = _keyframes.ToArray(),
|
|
};
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override object[] GetKeyframes()
|
|
{
|
|
var keyframes = new object[_keyframes.Count];
|
|
for (int i = 0; i < keyframes.Length; i++)
|
|
keyframes[i] = _keyframes[i];
|
|
return keyframes;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void SetKeyframes(object[] keyframes)
|
|
{
|
|
var data = new LinearCurve<T>.Keyframe[keyframes.Length];
|
|
for (int i = 0; i < keyframes.Length; i++)
|
|
{
|
|
if (keyframes[i] is LinearCurve<T>.Keyframe asT)
|
|
data[i] = asT;
|
|
else if (keyframes[i] is LinearCurve<object>.Keyframe asObj)
|
|
data[i] = new LinearCurve<T>.Keyframe(asObj.Time, (T)asObj.Value);
|
|
}
|
|
SetKeyframes(data);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override int AddKeyframe(float time, object value)
|
|
{
|
|
return AddKeyframe(new LinearCurve<T>.Keyframe(time, (T)value));
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override int AddKeyframe(float time, object value, object tangentIn, object tangentOut)
|
|
{
|
|
return AddKeyframe(new LinearCurve<T>.Keyframe(time, (T)value));
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void GetKeyframe(int index, out float time, out object value, out object tangentIn, out object tangentOut)
|
|
{
|
|
var k = _keyframes[index];
|
|
time = k.Time;
|
|
value = k.Value;
|
|
tangentIn = tangentOut = 0.0f;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override object GetKeyframe(int index)
|
|
{
|
|
return _keyframes[index];
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void SetKeyframeValue(int index, object value)
|
|
{
|
|
var k = _keyframes[index];
|
|
k.Value = (T)value;
|
|
_keyframes[index] = k;
|
|
|
|
UpdateKeyframes();
|
|
UpdateTooltips();
|
|
OnEdited();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void SetKeyframeValue(int index, object value, object tangentIn, object tangentOut)
|
|
{
|
|
var k = _keyframes[index];
|
|
k.Value = (T)value;
|
|
_keyframes[index] = k;
|
|
|
|
UpdateKeyframes();
|
|
UpdateTooltips();
|
|
OnEdited();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override Float2 GetKeyframePoint(int index, int component)
|
|
{
|
|
var k = _keyframes[index];
|
|
return new Float2(k.Time, Accessor.GetCurveValue(ref k.Value, component));
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesGet(string trackName, Action<string, float, object> get)
|
|
{
|
|
for (int i = 0; i < _keyframes.Count; i++)
|
|
{
|
|
var k = _keyframes[i];
|
|
get(trackName, k.Time, k);
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesSet(List<KeyValuePair<float, object>> keyframes)
|
|
{
|
|
OnEditingStart();
|
|
_keyframes.Clear();
|
|
if (keyframes != null)
|
|
{
|
|
foreach (var e in keyframes)
|
|
{
|
|
var k = (LinearCurve<T>.Keyframe)e.Value;
|
|
_keyframes.Add(new LinearCurve<T>.Keyframe(e.Key, k.Value));
|
|
}
|
|
}
|
|
OnKeyframesChanged();
|
|
OnEdited();
|
|
OnEditingEnd();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override int KeyframesCount => _keyframes.Count;
|
|
|
|
/// <inheritdoc />
|
|
public override void UpdateKeyframes()
|
|
{
|
|
if (_points.Count == 0)
|
|
{
|
|
// No keyframes
|
|
_contents.Bounds = Rectangle.Empty;
|
|
return;
|
|
}
|
|
|
|
var wasLocked = _mainPanel.IsLayoutLocked;
|
|
_mainPanel.IsLayoutLocked = true;
|
|
|
|
// Place keyframes
|
|
Rectangle curveContentAreaBounds = _mainPanel.GetClientArea();
|
|
var viewScale = ViewScale;
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
var k = _keyframes[p.Index];
|
|
|
|
var location = GetKeyframePoint(ref k, p.Component);
|
|
var point = new Float2
|
|
(
|
|
location.X * UnitsPerSecond - p.Width * 0.5f,
|
|
location.Y * -UnitsPerSecond - p.Height * 0.5f + curveContentAreaBounds.Height
|
|
);
|
|
|
|
if (_showCollapsed)
|
|
{
|
|
point.Y = 1.0f;
|
|
p.Size = new Float2(KeyframesSize.X / viewScale.X, Height - 2.0f);
|
|
p.Visible = p.Component == 0;
|
|
}
|
|
else
|
|
{
|
|
p.Size = KeyframesSize / viewScale;
|
|
p.Visible = true;
|
|
}
|
|
p.Location = point;
|
|
}
|
|
|
|
// Calculate bounds
|
|
var bounds = _points[0].Bounds;
|
|
for (var i = 1; i < _points.Count; i++)
|
|
bounds = Rectangle.Union(bounds, _points[i].Bounds);
|
|
|
|
// Adjust contents bounds to fill the curve area
|
|
if (EnablePanning != UseMode.Off || !ShowCollapsed)
|
|
{
|
|
bounds.Width = Mathf.Max(bounds.Width, 1.0f);
|
|
bounds.Height = Mathf.Max(bounds.Height, 1.0f);
|
|
bounds.Location = ApplyUseModeMask(EnablePanning, bounds.Location, _contents.Location);
|
|
bounds.Size = ApplyUseModeMask(EnablePanning, bounds.Size, _contents.Size);
|
|
if (!_contents._isMovingSelection)
|
|
_contents.Bounds = bounds;
|
|
}
|
|
else if (_contents.Bounds == Rectangle.Empty)
|
|
{
|
|
_contents.Bounds = Rectangle.Union(bounds, new Rectangle(Float2.Zero, Float2.One));
|
|
}
|
|
|
|
// Offset the keyframes (parent container changed its location)
|
|
var posOffset = _contents.Location;
|
|
for (var i = 0; i < _points.Count; i++)
|
|
{
|
|
_points[i].Location -= posOffset;
|
|
}
|
|
|
|
UpdateTangents();
|
|
|
|
if (!wasLocked)
|
|
_mainPanel.UnlockChildrenRecursive();
|
|
_mainPanel.PerformLayout();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void UpdateTangents()
|
|
{
|
|
for (int i = 0; i < _tangents.Length; i++)
|
|
_tangents[i].Visible = false;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void DrawCurve(ref Rectangle viewRect)
|
|
{
|
|
var components = Accessor.GetCurveComponents();
|
|
for (int component = 0; component < components; component++)
|
|
{
|
|
if (ShowStartEndLines)
|
|
{
|
|
var start = new LinearCurve<T>.Keyframe
|
|
{
|
|
Value = DefaultValue,
|
|
Time = -10000000.0f,
|
|
};
|
|
var end = new LinearCurve<T>.Keyframe
|
|
{
|
|
Value = DefaultValue,
|
|
Time = 10000000.0f,
|
|
};
|
|
|
|
if (_keyframes.Count == 0)
|
|
{
|
|
DrawLine(start, end, component, ref viewRect);
|
|
}
|
|
else
|
|
{
|
|
DrawLine(start, _keyframes[0], component, ref viewRect);
|
|
DrawLine(_keyframes[_keyframes.Count - 1], end, component, ref viewRect);
|
|
}
|
|
}
|
|
|
|
var color = Colors[component];
|
|
for (int i = 1; i < _keyframes.Count; i++)
|
|
{
|
|
var startK = _keyframes[i - 1];
|
|
var endK = _keyframes[i];
|
|
|
|
var start = GetKeyframePoint(ref startK, component);
|
|
var end = GetKeyframePoint(ref endK, component);
|
|
|
|
var p1 = PointFromKeyframes(start, ref viewRect);
|
|
var p2 = PointFromKeyframes(end, ref viewRect);
|
|
|
|
Render2D.DrawLine(p1, p2, color);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnDestroy()
|
|
{
|
|
_keyframes.Clear();
|
|
|
|
base.OnDestroy();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// The Bezier curve editor control.
|
|
/// </summary>
|
|
/// <typeparam name="T">The keyframe value type.</typeparam>
|
|
/// <seealso cref="BezierCurve{T}"/>
|
|
/// <seealso cref="CurveEditor{T}"/>
|
|
/// <seealso cref="CurveEditorBase" />
|
|
public class BezierCurveEditor<T> : CurveEditor<T> where T : new()
|
|
{
|
|
/// <summary>
|
|
/// The keyframes collection.
|
|
/// </summary>
|
|
protected List<BezierCurve<T>.Keyframe> _keyframes = new List<BezierCurve<T>.Keyframe>();
|
|
|
|
/// <summary>
|
|
/// Gets the keyframes collection (read-only).
|
|
/// </summary>
|
|
public IReadOnlyList<BezierCurve<T>.Keyframe> Keyframes => _keyframes;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="BezierCurveEditor{T}"/> class.
|
|
/// </summary>
|
|
public BezierCurveEditor()
|
|
{
|
|
for (int i = 0; i < _tangents.Length; i++)
|
|
{
|
|
_tangents[i] = new TangentPoint
|
|
{
|
|
AutoFocus = false,
|
|
Size = KeyframesSize,
|
|
Editor = this,
|
|
Component = i / 2,
|
|
Parent = _contents,
|
|
Visible = false,
|
|
IsIn = false,
|
|
};
|
|
}
|
|
for (int i = 0; i < _tangents.Length; i += 2)
|
|
{
|
|
_tangents[i].IsIn = true;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Adds the new keyframe.
|
|
/// </summary>
|
|
/// <param name="k">The keyframe to add.</param>
|
|
/// <returns>The index of the keyframe.</returns>
|
|
public int AddKeyframe(BezierCurve<T>.Keyframe k)
|
|
{
|
|
var eps = Mathf.Epsilon;
|
|
if (FPS.HasValue)
|
|
{
|
|
float fps = FPS.Value;
|
|
k.Time = Mathf.Floor(k.Time * fps) / fps;
|
|
eps = 1.0f / fps;
|
|
}
|
|
|
|
int pos = 0;
|
|
while (pos < _keyframes.Count && _keyframes[pos].Time < k.Time)
|
|
pos++;
|
|
if (_keyframes.Count > pos && Mathf.Abs(_keyframes[pos].Time - k.Time) < eps)
|
|
_keyframes[pos] = k;
|
|
else
|
|
_keyframes.Insert(pos, k);
|
|
|
|
OnKeyframesChanged();
|
|
OnEdited();
|
|
return pos;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets the keyframes collection.
|
|
/// </summary>
|
|
/// <param name="keyframes">The keyframes.</param>
|
|
public void SetKeyframes(IEnumerable<BezierCurve<T>.Keyframe> keyframes)
|
|
{
|
|
if (keyframes == null)
|
|
throw new ArgumentNullException(nameof(keyframes));
|
|
var keyframesArray = keyframes as BezierCurve<T>.Keyframe[] ?? keyframes.ToArray();
|
|
if (_keyframes.SequenceEqual(keyframesArray))
|
|
return;
|
|
if (keyframesArray.Length > MaxKeyframes)
|
|
{
|
|
var tmp = keyframesArray;
|
|
keyframesArray = new BezierCurve<T>.Keyframe[MaxKeyframes];
|
|
Array.Copy(tmp, keyframesArray, MaxKeyframes);
|
|
}
|
|
|
|
_keyframes.Clear();
|
|
_keyframes.AddRange(keyframesArray);
|
|
_keyframes.Sort((a, b) => a.Time.CompareTo(b.Time));
|
|
|
|
UpdateFPS();
|
|
|
|
OnKeyframesChanged();
|
|
}
|
|
|
|
private void ResetTangents()
|
|
{
|
|
bool edited = false;
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
if (!p.IsSelected)
|
|
continue;
|
|
if (!edited)
|
|
OnEditingStart();
|
|
edited = true;
|
|
|
|
var k = _keyframes[p.Index];
|
|
|
|
if (p.Index > 0)
|
|
{
|
|
Accessor.SetCurveValue(0.0f, ref k.TangentIn, p.Component);
|
|
}
|
|
|
|
if (p.Index < _keyframes.Count - 1)
|
|
{
|
|
Accessor.SetCurveValue(0.0f, ref k.TangentOut, p.Component);
|
|
}
|
|
|
|
_keyframes[p.Index] = k;
|
|
}
|
|
if (!edited)
|
|
return;
|
|
|
|
UpdateTangents();
|
|
OnEdited();
|
|
OnEditingEnd();
|
|
}
|
|
|
|
private void SetTangentsLinear()
|
|
{
|
|
bool edited = false;
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
if (!p.IsSelected)
|
|
continue;
|
|
if (!edited)
|
|
OnEditingStart();
|
|
edited = true;
|
|
|
|
var k = _keyframes[p.Index];
|
|
var value = Accessor.GetCurveValue(ref k.Value, p.Component);
|
|
|
|
if (p.Index > 0)
|
|
{
|
|
var o = _keyframes[p.Index - 1];
|
|
var oValue = Accessor.GetCurveValue(ref o.Value, p.Component);
|
|
var slope = (value - oValue) / (k.Time - o.Time);
|
|
slope = -slope;
|
|
Accessor.SetCurveValue(slope, ref k.TangentIn, p.Component);
|
|
}
|
|
|
|
if (p.Index < _keyframes.Count - 1)
|
|
{
|
|
var o = _keyframes[p.Index + 1];
|
|
var oValue = Accessor.GetCurveValue(ref o.Value, p.Component);
|
|
var slope = (oValue - value) / (o.Time - k.Time);
|
|
Accessor.SetCurveValue(slope, ref k.TangentOut, p.Component);
|
|
}
|
|
|
|
_keyframes[p.Index] = k;
|
|
}
|
|
if (!edited)
|
|
return;
|
|
|
|
UpdateTangents();
|
|
OnEdited();
|
|
OnEditingEnd();
|
|
}
|
|
|
|
// Computes control points given knots k, this is the brain of the operation
|
|
private static void ComputeControlPoints(float[] k, out float[] p1, out float[] p2)
|
|
{
|
|
// Reference: https://www.particleincell.com/2012/bezier-splines/
|
|
|
|
var n = k.Length - 1;
|
|
p1 = new float[n];
|
|
p2 = new float[n];
|
|
|
|
// rhs vector
|
|
var a = new float[n];
|
|
var b = new float[n];
|
|
var c = new float[n];
|
|
var r = new float[n];
|
|
|
|
// left most segment
|
|
a[0] = 0;
|
|
b[0] = 2;
|
|
c[0] = 1;
|
|
r[0] = k[0] + 2 * k[1];
|
|
|
|
// internal segments
|
|
for (var i = 1; i < n - 1; i++)
|
|
{
|
|
a[i] = 1;
|
|
b[i] = 4;
|
|
c[i] = 1;
|
|
r[i] = 4 * k[i] + 2 * k[i + 1];
|
|
}
|
|
|
|
// right segment
|
|
a[n - 1] = 2;
|
|
b[n - 1] = 7;
|
|
c[n - 1] = 0;
|
|
r[n - 1] = 8 * k[n - 1] + k[n];
|
|
|
|
// solves Ax=b with the Thomas algorithm (from Wikipedia)
|
|
for (var i = 1; i < n; i++)
|
|
{
|
|
var m = a[i] / b[i - 1];
|
|
b[i] = b[i] - m * c[i - 1];
|
|
r[i] = r[i] - m * r[i - 1];
|
|
}
|
|
|
|
p1[n - 1] = r[n - 1] / b[n - 1];
|
|
for (var i = n - 2; i >= 0; --i)
|
|
p1[i] = (r[i] - c[i] * p1[i + 1]) / b[i];
|
|
|
|
// we have p1, now compute p2
|
|
for (var i = 0; i < n - 1; i++)
|
|
p2[i] = 2 * k[i + 1] - p1[i + 1];
|
|
|
|
p2[n - 1] = 0.5f * (k[n] + p1[n - 1]);
|
|
}
|
|
|
|
private void SetTangentsSmooth()
|
|
{
|
|
var k1 = new T[_keyframes.Count];
|
|
var k2 = new T[_keyframes.Count];
|
|
var kk = new float[_keyframes.Count];
|
|
var components = Accessor.GetCurveComponents();
|
|
for (int component = 0; component < components; component++)
|
|
{
|
|
for (int i = 0; i < _keyframes.Count; i++)
|
|
{
|
|
var v = _keyframes[i].Value;
|
|
kk[i] = Accessor.GetCurveValue(ref v, component);
|
|
}
|
|
ComputeControlPoints(kk, out var p1, out var p2);
|
|
for (int i = 0; i < p1.Length; i++)
|
|
{
|
|
Accessor.SetCurveValue(p1[i], ref k1[i], component);
|
|
Accessor.SetCurveValue(p2[i], ref k2[i], component);
|
|
}
|
|
}
|
|
|
|
bool edited = false;
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
if (!p.IsSelected)
|
|
continue;
|
|
if (!edited)
|
|
OnEditingStart();
|
|
edited = true;
|
|
|
|
var k = _keyframes[p.Index];
|
|
var value = Accessor.GetCurveValue(ref k.Value, p.Component);
|
|
|
|
if (p.Index > 0)
|
|
{
|
|
var o = _keyframes[p.Index - 1];
|
|
var slope = (Accessor.GetCurveValue(ref k2[p.Index], p.Component) - value) / (o.Time - k.Time);
|
|
Accessor.SetCurveValue(slope, ref k.TangentIn, p.Component);
|
|
}
|
|
|
|
if (p.Index < _keyframes.Count - 1)
|
|
{
|
|
var o = _keyframes[p.Index + 1];
|
|
var slope = (Accessor.GetCurveValue(ref k1[p.Index], p.Component) - value) / (o.Time - k.Time);
|
|
Accessor.SetCurveValue(slope, ref k.TangentOut, p.Component);
|
|
}
|
|
|
|
_keyframes[p.Index] = k;
|
|
}
|
|
if (!edited)
|
|
return;
|
|
|
|
UpdateTangents();
|
|
OnEdited();
|
|
OnEditingEnd();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void UpdateFPS()
|
|
{
|
|
if (FPS.HasValue)
|
|
{
|
|
float fps = FPS.Value;
|
|
for (int i = 0; i < _keyframes.Count; i++)
|
|
{
|
|
var k = _keyframes[i];
|
|
k.Time = Mathf.Floor(k.Time * fps) / fps;
|
|
_keyframes[i] = k;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the keyframe point (in keyframes space).
|
|
/// </summary>
|
|
/// <param name="k">The keyframe.</param>
|
|
/// <param name="component">The keyframe value component index.</param>
|
|
/// <returns>The point in time/value space.</returns>
|
|
private Float2 GetKeyframePoint(ref BezierCurve<T>.Keyframe k, int component)
|
|
{
|
|
return new Float2(k.Time, Accessor.GetCurveValue(ref k.Value, component));
|
|
}
|
|
|
|
private void DrawLine(BezierCurve<T>.Keyframe startK, BezierCurve<T>.Keyframe endK, int component, ref Rectangle viewRect)
|
|
{
|
|
var start = GetKeyframePoint(ref startK, component);
|
|
var end = GetKeyframePoint(ref endK, component);
|
|
|
|
var p1 = PointFromKeyframes(start, ref viewRect);
|
|
var p2 = PointFromKeyframes(end, ref viewRect);
|
|
|
|
var color = Colors[component].RGBMultiplied(0.6f);
|
|
Render2D.DrawLine(p1, p2, color, 1.6f);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void OnKeyframesChanged()
|
|
{
|
|
var components = Accessor.GetCurveComponents();
|
|
while (_points.Count > _keyframes.Count * components)
|
|
{
|
|
var last = _points.Count - 1;
|
|
_points[last].Dispose();
|
|
_points.RemoveAt(last);
|
|
}
|
|
|
|
while (_points.Count < _keyframes.Count * components)
|
|
{
|
|
_points.Add(new KeyframePoint
|
|
{
|
|
AutoFocus = false,
|
|
Size = KeyframesSize,
|
|
Editor = this,
|
|
Index = _points.Count / components,
|
|
Component = _points.Count % components,
|
|
Parent = _contents,
|
|
});
|
|
|
|
_refreshAfterEdit = true;
|
|
}
|
|
|
|
UpdateKeyframes();
|
|
UpdateTooltips();
|
|
|
|
base.OnKeyframesChanged();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void Evaluate(out T result, float time, bool loop = false)
|
|
{
|
|
var curve = new BezierCurve<T>
|
|
{
|
|
Keyframes = _keyframes.ToArray()
|
|
};
|
|
curve.Evaluate(out result, time, loop);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeTime(int index)
|
|
{
|
|
return _keyframes[index].Time;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeTime(object keyframe)
|
|
{
|
|
return ((BezierCurve<T>.Keyframe)keyframe).Time;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override T GetKeyframeValue(object keyframe)
|
|
{
|
|
return ((BezierCurve<T>.Keyframe)keyframe).Value;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeValue(object keyframe, int component)
|
|
{
|
|
var value = ((BezierCurve<T>.Keyframe)keyframe).Value;
|
|
return Accessor.GetCurveValue(ref value, component);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void AddKeyframe(Float2 keyframesPos)
|
|
{
|
|
var k = new BezierCurve<T>.Keyframe
|
|
{
|
|
Time = keyframesPos.X,
|
|
};
|
|
var components = Accessor.GetCurveComponents();
|
|
for (int component = 0; component < components; component++)
|
|
{
|
|
Accessor.SetCurveValue(keyframesPos.Y, ref k.Value, component);
|
|
Accessor.SetCurveValue(0.0f, ref k.TangentIn, component);
|
|
Accessor.SetCurveValue(0.0f, ref k.TangentOut, component);
|
|
}
|
|
OnEditingStart();
|
|
AddKeyframe(k);
|
|
OnEditingEnd();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetKeyframeInternal(int index, object keyframe)
|
|
{
|
|
_keyframes[index] = (BezierCurve<T>.Keyframe)keyframe;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetKeyframeInternal(int index, float time, float value, int component)
|
|
{
|
|
var k = _keyframes[index];
|
|
k.Time = time;
|
|
Accessor.SetCurveValue(value, ref k.Value, component);
|
|
_keyframes[index] = k;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override float GetKeyframeTangentInternal(int index, bool isIn, int component)
|
|
{
|
|
var k = _keyframes[index];
|
|
var value = isIn ? k.TangentIn : k.TangentOut;
|
|
return Accessor.GetCurveValue(ref value, component);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetKeyframeTangentInternal(int index, bool isIn, int component, float value)
|
|
{
|
|
var k = _keyframes[index];
|
|
if (isIn)
|
|
Accessor.SetCurveValue(value, ref k.TangentIn, component);
|
|
else
|
|
Accessor.SetCurveValue(value, ref k.TangentOut, component);
|
|
_keyframes[index] = k;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void RemoveKeyframesInternal(HashSet<int> indicesToRemove)
|
|
{
|
|
var keyframes = _keyframes;
|
|
_keyframes = new List<BezierCurve<T>.Keyframe>();
|
|
for (int i = 0; i < keyframes.Count; i++)
|
|
{
|
|
if (!indicesToRemove.Contains(i))
|
|
_keyframes.Add(keyframes[i]);
|
|
}
|
|
}
|
|
|
|
sealed class AllKeyframesProxy : IAllKeyframesProxy
|
|
{
|
|
[HideInEditor, NoSerialize]
|
|
public BezierCurveEditor<T> Editor;
|
|
|
|
[Collection(CanReorderItems = false, Spacing = 10)]
|
|
public BezierCurve<T>.Keyframe[] Keyframes;
|
|
|
|
public void Apply()
|
|
{
|
|
Editor.SetKeyframes(Keyframes);
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override IAllKeyframesProxy GetAllKeyframesEditingProxy()
|
|
{
|
|
return new AllKeyframesProxy
|
|
{
|
|
Editor = this,
|
|
Keyframes = _keyframes.ToArray(),
|
|
};
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override object[] GetKeyframes()
|
|
{
|
|
var keyframes = new object[_keyframes.Count];
|
|
for (int i = 0; i < keyframes.Length; i++)
|
|
keyframes[i] = _keyframes[i];
|
|
return keyframes;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void SetKeyframes(object[] keyframes)
|
|
{
|
|
var data = new BezierCurve<T>.Keyframe[keyframes.Length];
|
|
for (int i = 0; i < keyframes.Length; i++)
|
|
{
|
|
if (keyframes[i] is BezierCurve<T>.Keyframe asT)
|
|
data[i] = asT;
|
|
else if (keyframes[i] is BezierCurve<object>.Keyframe asObj)
|
|
data[i] = new BezierCurve<T>.Keyframe(asObj.Time, (T)asObj.Value, (T)asObj.TangentIn, (T)asObj.TangentOut);
|
|
}
|
|
SetKeyframes(data);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override int AddKeyframe(float time, object value)
|
|
{
|
|
return AddKeyframe(new BezierCurve<T>.Keyframe(time, (T)value));
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override int AddKeyframe(float time, object value, object tangentIn, object tangentOut)
|
|
{
|
|
return AddKeyframe(new BezierCurve<T>.Keyframe(time, (T)value, (T)tangentIn, (T)tangentOut));
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void GetKeyframe(int index, out float time, out object value, out object tangentIn, out object tangentOut)
|
|
{
|
|
var k = _keyframes[index];
|
|
time = k.Time;
|
|
value = k.Value;
|
|
tangentIn = k.TangentIn;
|
|
tangentOut = k.TangentOut;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override object GetKeyframe(int index)
|
|
{
|
|
return _keyframes[index];
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void SetKeyframeValue(int index, object value)
|
|
{
|
|
var k = _keyframes[index];
|
|
k.Value = (T)value;
|
|
_keyframes[index] = k;
|
|
|
|
UpdateKeyframes();
|
|
UpdateTooltips();
|
|
OnEdited();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void SetKeyframeValue(int index, object value, object tangentIn, object tangentOut)
|
|
{
|
|
var k = _keyframes[index];
|
|
k.Value = (T)value;
|
|
k.TangentIn = (T)tangentIn;
|
|
k.TangentOut = (T)tangentOut;
|
|
_keyframes[index] = k;
|
|
|
|
UpdateKeyframes();
|
|
UpdateTooltips();
|
|
OnEdited();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override Float2 GetKeyframePoint(int index, int component)
|
|
{
|
|
var k = _keyframes[index];
|
|
return new Float2(k.Time, Accessor.GetCurveValue(ref k.Value, component));
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesGet(string trackName, Action<string, float, object> get)
|
|
{
|
|
for (int i = 0; i < _keyframes.Count; i++)
|
|
{
|
|
var k = _keyframes[i];
|
|
get(trackName, k.Time, k);
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesSet(List<KeyValuePair<float, object>> keyframes)
|
|
{
|
|
OnEditingStart();
|
|
_keyframes.Clear();
|
|
if (keyframes != null)
|
|
{
|
|
foreach (var e in keyframes)
|
|
{
|
|
var k = (BezierCurve<T>.Keyframe)e.Value;
|
|
_keyframes.Add(new BezierCurve<T>.Keyframe(e.Key, k.Value, k.TangentIn, k.TangentOut));
|
|
}
|
|
}
|
|
OnKeyframesChanged();
|
|
OnEdited();
|
|
OnEditingEnd();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override int KeyframesCount => _keyframes.Count;
|
|
|
|
/// <inheritdoc />
|
|
public override void UpdateKeyframes()
|
|
{
|
|
if (_points.Count == 0)
|
|
{
|
|
// No keyframes
|
|
_contents.Bounds = Rectangle.Empty;
|
|
return;
|
|
}
|
|
|
|
_mainPanel.LockChildrenRecursive();
|
|
|
|
// Place keyframes
|
|
Rectangle curveContentAreaBounds = _mainPanel.GetClientArea();
|
|
var viewScale = ViewScale;
|
|
var pointsSize = _showCollapsed ? new Float2(4.0f / viewScale.X, Height - 2.0f) : KeyframesSize / viewScale;
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
var k = _keyframes[p.Index];
|
|
var point = GetKeyframePoint(ref k, p.Component);
|
|
var location = new Float2
|
|
(
|
|
point.X * UnitsPerSecond - pointsSize.X * 0.5f,
|
|
point.Y * -UnitsPerSecond - pointsSize.Y * 0.5f + curveContentAreaBounds.Height
|
|
);
|
|
if (_showCollapsed)
|
|
{
|
|
location.Y = 1.0f;
|
|
p.Visible = p.Component == 0;
|
|
}
|
|
else
|
|
{
|
|
p.Visible = true;
|
|
}
|
|
p.Bounds = new Rectangle(location, pointsSize);
|
|
}
|
|
|
|
// Calculate bounds
|
|
var bounds = _points[0].Bounds;
|
|
for (int i = 1; i < _points.Count; i++)
|
|
bounds = Rectangle.Union(bounds, _points[i].Bounds);
|
|
|
|
// Adjust contents bounds to fill the curve area
|
|
if (EnablePanning != UseMode.Off || !ShowCollapsed)
|
|
{
|
|
bounds.Width = Mathf.Max(bounds.Width, 1.0f);
|
|
bounds.Height = Mathf.Max(bounds.Height, 1.0f);
|
|
bounds.Location = ApplyUseModeMask(EnablePanning, bounds.Location, _contents.Location);
|
|
bounds.Size = ApplyUseModeMask(EnablePanning, bounds.Size, _contents.Size);
|
|
if (!_contents._isMovingSelection)
|
|
_contents.Bounds = bounds;
|
|
}
|
|
else if (_contents.Bounds == Rectangle.Empty)
|
|
{
|
|
_contents.Bounds = Rectangle.Union(bounds, new Rectangle(Float2.Zero, Float2.One));
|
|
}
|
|
|
|
// Offset the keyframes (parent container changed its location)
|
|
var posOffset = _contents.Location;
|
|
for (var i = 0; i < _points.Count; i++)
|
|
{
|
|
_points[i].Location -= posOffset;
|
|
}
|
|
|
|
UpdateTangents();
|
|
|
|
_mainPanel.UnlockChildrenRecursive();
|
|
_mainPanel.PerformLayout();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void UpdateTangents()
|
|
{
|
|
// Find selected keyframe
|
|
Rectangle curveContentAreaBounds = _mainPanel.GetClientArea();
|
|
var selectedCount = 0;
|
|
var selectedIndex = -1;
|
|
KeyframePoint selectedKeyframe = null;
|
|
var selectedComponent = -1;
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
if (p.IsSelected)
|
|
{
|
|
selectedIndex = p.Index;
|
|
selectedKeyframe = p;
|
|
selectedComponent = p.Component;
|
|
selectedCount++;
|
|
}
|
|
}
|
|
|
|
// Place tangents (only for a single selected keyframe)
|
|
if (selectedCount == 1 && !_showCollapsed)
|
|
{
|
|
var posOffset = _contents.Location;
|
|
var k = _keyframes[selectedIndex];
|
|
for (int i = 0; i < _tangents.Length; i++)
|
|
{
|
|
var t = _tangents[i];
|
|
|
|
t.Index = selectedIndex;
|
|
t.Point = selectedKeyframe;
|
|
t.Component = selectedComponent;
|
|
|
|
var tangent = t.TangentValue;
|
|
var direction = t.IsIn ? -1.0f : 1.0f;
|
|
var offset = t.TangentOffset;
|
|
var location = GetKeyframePoint(ref k, selectedComponent);
|
|
t.Size = KeyframesSize / ViewScale;
|
|
t.Location = new Float2
|
|
(
|
|
location.X * UnitsPerSecond - t.Width * 0.5f + offset * direction,
|
|
location.Y * -UnitsPerSecond - t.Height * 0.5f + curveContentAreaBounds.Height - offset * tangent
|
|
);
|
|
|
|
var isFirst = selectedIndex == 0 && t.IsIn;
|
|
var isLast = selectedIndex == _keyframes.Count - 1 && !t.IsIn;
|
|
t.Visible = !isFirst && !isLast;
|
|
t.UpdateTooltip();
|
|
|
|
if (t.Visible)
|
|
_tangents[i].Location -= posOffset;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < _tangents.Length; i++)
|
|
{
|
|
_tangents[i].Visible = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetScaleInternal(ref Float2 scale)
|
|
{
|
|
base.SetScaleInternal(ref scale);
|
|
|
|
if (!_showCollapsed)
|
|
{
|
|
// Refresh keyframes when zooming (their size depends on the scale)
|
|
UpdateKeyframes();
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void OnShowContextMenu(ContextMenu.ContextMenu cm, int selectionCount)
|
|
{
|
|
if (selectionCount != 0)
|
|
{
|
|
cm.AddSeparator();
|
|
cm.AddButton("Reset tangents", ResetTangents);
|
|
cm.AddButton("Linear tangents", SetTangentsLinear);
|
|
cm.AddButton("Smooth tangents", SetTangentsSmooth);
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void DrawCurve(ref Rectangle viewRect)
|
|
{
|
|
var components = Accessor.GetCurveComponents();
|
|
for (int component = 0; component < components; component++)
|
|
{
|
|
if (ShowStartEndLines)
|
|
{
|
|
var start = new BezierCurve<T>.Keyframe
|
|
{
|
|
Value = DefaultValue,
|
|
Time = -10000000.0f,
|
|
};
|
|
var end = new BezierCurve<T>.Keyframe
|
|
{
|
|
Value = DefaultValue,
|
|
Time = 10000000.0f,
|
|
};
|
|
|
|
if (_keyframes.Count == 0)
|
|
{
|
|
DrawLine(start, end, component, ref viewRect);
|
|
}
|
|
else
|
|
{
|
|
DrawLine(start, _keyframes[0], component, ref viewRect);
|
|
DrawLine(_keyframes[_keyframes.Count - 1], end, component, ref viewRect);
|
|
}
|
|
}
|
|
|
|
var color = Colors[component];
|
|
for (int i = 1; i < _keyframes.Count; i++)
|
|
{
|
|
var startK = _keyframes[i - 1];
|
|
var endK = _keyframes[i];
|
|
|
|
var start = GetKeyframePoint(ref startK, component);
|
|
var end = GetKeyframePoint(ref endK, component);
|
|
|
|
var startTangent = Accessor.GetCurveValue(ref startK.TangentOut, component);
|
|
var endTangent = Accessor.GetCurveValue(ref endK.TangentIn, component);
|
|
|
|
var tangentScale = (endK.Time - startK.Time) / 3.0f;
|
|
var p1 = PointFromKeyframes(start, ref viewRect);
|
|
var p2 = PointFromKeyframes(start + new Float2(0, startTangent * tangentScale), ref viewRect);
|
|
var p3 = PointFromKeyframes(end + new Float2(0, endTangent * tangentScale), ref viewRect);
|
|
var p4 = PointFromKeyframes(end, ref viewRect);
|
|
|
|
Render2D.DrawSpline(p1, p2, p3, p4, color);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnDestroy()
|
|
{
|
|
_keyframes.Clear();
|
|
|
|
base.OnDestroy();
|
|
}
|
|
}
|
|
}
|