d25cb7a9da
Fix curve tangent colors to match editor style Fix curve tangents editing to have stable movement no matter the view scale #2455
724 lines
30 KiB
C#
724 lines
30 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.Text;
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using FlaxEngine;
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using FlaxEngine.GUI;
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using FlaxEngine.Json;
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using FlaxEngine.Utilities;
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namespace FlaxEditor.GUI
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{
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partial class CurveEditor<T>
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{
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/// <summary>
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/// The curve contents container control.
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/// </summary>
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/// <seealso cref="FlaxEngine.GUI.ContainerControl" />
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protected class ContentsBase : ContainerControl
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{
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private readonly CurveEditor<T> _editor;
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internal bool _leftMouseDown;
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private bool _rightMouseDown;
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internal Float2 _leftMouseDownPos = Float2.Minimum;
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private Float2 _rightMouseDownPos = Float2.Minimum;
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private Float2 _movingViewLastPos;
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internal Float2 _mousePos = Float2.Minimum;
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internal bool _isMovingSelection;
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internal bool _isMovingTangent;
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internal bool _movedView;
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internal bool _movedKeyframes;
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private TangentPoint _movingTangent;
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private Float2 _movingSelectionStart;
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private Float2[] _movingSelectionOffsets;
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private Float2 _cmShowPos;
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/// <summary>
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/// Initializes a new instance of the <see cref="ContentsBase"/> class.
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/// </summary>
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/// <param name="editor">The curve editor.</param>
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public ContentsBase(CurveEditor<T> editor)
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{
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_editor = editor;
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}
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private void UpdateSelectionRectangle()
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{
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var selectionRect = Rectangle.FromPoints(_leftMouseDownPos, _mousePos);
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if (_editor.KeyframesEditorContext != null)
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_editor.KeyframesEditorContext.OnKeyframesSelection(_editor, this, selectionRect);
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else
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UpdateSelection(ref selectionRect);
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}
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internal void UpdateSelection(ref Rectangle selectionRect)
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{
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// Find controls to select
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for (int i = 0; i < Children.Count; i++)
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{
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if (Children[i] is KeyframePoint p)
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{
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p.IsSelected = p.Bounds.Intersects(ref selectionRect);
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}
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}
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_editor.UpdateTangents();
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}
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internal void OnMoveStart(Float2 location)
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{
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// Start moving selected keyframes
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_isMovingSelection = true;
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_movedKeyframes = false;
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var viewRect = _editor._mainPanel.GetClientArea();
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_movingSelectionStart = PointToKeyframes(location, ref viewRect);
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if (_movingSelectionOffsets == null || _movingSelectionOffsets.Length != _editor._points.Count)
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_movingSelectionOffsets = new Float2[_editor._points.Count];
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for (int i = 0; i < _movingSelectionOffsets.Length; i++)
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_movingSelectionOffsets[i] = _editor._points[i].Point - _movingSelectionStart;
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_editor.OnEditingStart();
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}
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internal void OnMove(Float2 location)
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{
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var viewRect = _editor._mainPanel.GetClientArea();
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var locationKeyframes = PointToKeyframes(location, ref viewRect);
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var accessor = _editor.Accessor;
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var components = accessor.GetCurveComponents();
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for (var i = 0; i < _editor._points.Count; i++)
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{
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var p = _editor._points[i];
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if (p.IsSelected)
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{
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var k = _editor.GetKeyframe(p.Index);
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float time = _editor.GetKeyframeTime(k);
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float value = _editor.GetKeyframeValue(k, p.Component);
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float minTime = p.Index != 0 ? _editor.GetKeyframeTime(_editor.GetKeyframe(p.Index - 1)) + Mathf.Epsilon : float.MinValue;
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float maxTime = p.Index != _editor.KeyframesCount - 1 ? _editor.GetKeyframeTime(_editor.GetKeyframe(p.Index + 1)) - Mathf.Epsilon : float.MaxValue;
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var offset = _movingSelectionOffsets[i];
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if (!_editor.ShowCollapsed)
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{
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// Move on value axis
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value = locationKeyframes.Y + offset.Y;
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}
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// Let the first selected point of this keyframe to edit time
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bool isFirstSelected = false;
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for (var j = 0; j < components; j++)
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{
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var idx = p.Index * components + j;
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if (idx == i)
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{
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isFirstSelected = true;
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break;
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}
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if (_editor._points[idx].IsSelected)
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break;
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}
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if (isFirstSelected)
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{
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time = locationKeyframes.X + offset.X;
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if (_editor.FPS.HasValue)
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{
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float fps = _editor.FPS.Value;
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time = Mathf.Floor(time * fps) / fps;
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}
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time = Mathf.Clamp(time, minTime, maxTime);
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}
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// TODO: snapping keyframes to grid when moving
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_editor.SetKeyframeInternal(p.Index, time, value, p.Component);
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}
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_editor.UpdateKeyframes();
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_editor.UpdateTooltips();
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if (_editor.EnablePanning == UseMode.On)
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{
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//_editor._mainPanel.ScrollViewTo(PointToParent(_editor._mainPanel, location));
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}
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Cursor = CursorType.SizeAll;
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_movedKeyframes = true;
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}
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}
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internal void OnMoveEnd(Float2 location)
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{
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if (_movedKeyframes)
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{
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_editor.OnEdited();
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_editor.OnEditingEnd();
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_movedKeyframes = false;
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}
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_isMovingSelection = false;
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}
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/// <inheritdoc />
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public override bool IntersectsContent(ref Float2 locationParent, out Float2 location)
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{
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// Pass all events
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location = PointFromParent(ref locationParent);
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return true;
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}
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/// <inheritdoc />
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public override void OnMouseEnter(Float2 location)
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{
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_mousePos = location;
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base.OnMouseEnter(location);
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}
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/// <inheritdoc />
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public override void OnMouseMove(Float2 location)
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{
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_mousePos = location;
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// Start moving selection if movement started from the keyframe
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if (_leftMouseDown && !_isMovingSelection && GetChildAt(_leftMouseDownPos) is KeyframePoint)
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{
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if (_editor.KeyframesEditorContext != null)
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_editor.KeyframesEditorContext.OnKeyframesMove(_editor, this, location, true, false);
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else
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OnMoveStart(location);
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}
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// Moving view
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if (_rightMouseDown)
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{
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var movingViewPos = Parent.PointToParent(PointToParent(location));
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var delta = movingViewPos - _movingViewLastPos;
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if (_editor.CustomViewPanning != null)
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delta = _editor.CustomViewPanning(delta);
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delta *= GetUseModeMask(_editor.EnablePanning);
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if (delta.LengthSquared > 0.01f)
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{
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_editor._mainPanel.ViewOffset += delta;
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_movingViewLastPos = movingViewPos;
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_movedView = true;
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if (_editor.CustomViewPanning != null)
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{
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if (Cursor == CursorType.Default)
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Cursor = CursorType.SizeAll;
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}
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else
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{
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switch (_editor.EnablePanning)
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{
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case UseMode.Vertical: Cursor = CursorType.SizeNS; break;
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case UseMode.Horizontal: Cursor = CursorType.SizeWE; break;
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case UseMode.On: Cursor = CursorType.SizeAll; break;
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}
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}
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}
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return;
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}
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// Moving selection
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else if (_isMovingSelection)
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{
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if (_editor.KeyframesEditorContext != null)
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_editor.KeyframesEditorContext.OnKeyframesMove(_editor, this, location, false, false);
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else
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OnMove(location);
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return;
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}
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// Moving tangent
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else if (_isMovingTangent)
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{
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var viewRect = _editor._mainPanel.GetClientArea();
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var k = _editor.GetKeyframe(_movingTangent.Index);
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var kv = _editor.GetKeyframeValue(k);
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var value = _editor.Accessor.GetCurveValue(ref kv, _movingTangent.Component);
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_movingTangent.TangentValue = (PointToKeyframes(location, ref viewRect).Y - value) * _editor.ViewScale.X;
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_editor.UpdateTangents();
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Cursor = CursorType.SizeNS;
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_movedKeyframes = true;
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return;
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}
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// Selecting
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else if (_leftMouseDown)
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{
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UpdateSelectionRectangle();
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return;
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}
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base.OnMouseMove(location);
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}
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/// <inheritdoc />
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public override void OnLostFocus()
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{
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// Clear flags and state
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if (_leftMouseDown)
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{
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_leftMouseDown = false;
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}
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if (_rightMouseDown)
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{
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_rightMouseDown = false;
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Cursor = CursorType.Default;
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}
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_isMovingSelection = false;
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_isMovingTangent = false;
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base.OnLostFocus();
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}
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/// <inheritdoc />
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public override bool OnMouseDown(Float2 location, MouseButton button)
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{
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if (base.OnMouseDown(location, button))
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{
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// Clear flags
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_isMovingSelection = false;
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_isMovingTangent = false;
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_rightMouseDown = false;
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_leftMouseDown = false;
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return true;
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}
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// Cache data
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_isMovingSelection = false;
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_isMovingTangent = false;
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_mousePos = location;
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if (button == MouseButton.Left)
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{
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_leftMouseDown = true;
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_leftMouseDownPos = location;
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}
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if (button == MouseButton.Right)
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{
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_rightMouseDown = true;
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_rightMouseDownPos = location;
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_movedView = false;
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_movingViewLastPos = Parent.PointToParent(PointToParent(location));
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}
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// Check if any node is under the mouse
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var underMouse = GetChildAt(location);
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if (underMouse is KeyframePoint keyframe)
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{
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if (_leftMouseDown)
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{
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if (Root.GetKey(KeyboardKeys.Control))
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{
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// Toggle selection
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keyframe.IsSelected = !keyframe.IsSelected;
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_editor.UpdateTangents();
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}
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else if (Root.GetKey(KeyboardKeys.Shift))
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{
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// Select range
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keyframe.IsSelected = true;
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int selectionStart = 0;
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for (; selectionStart < _editor._points.Count; selectionStart++)
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{
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if (_editor._points[selectionStart].IsSelected)
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break;
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}
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int selectionEnd = _editor._points.Count - 1;
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for (; selectionEnd > selectionStart; selectionEnd--)
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{
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if (_editor._points[selectionEnd].IsSelected)
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break;
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}
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selectionStart++;
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for (; selectionStart < selectionEnd; selectionStart++)
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_editor._points[selectionStart].IsSelected = true;
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_editor.UpdateTangents();
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}
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else if (!keyframe.IsSelected)
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{
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// Select node
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if (_editor.KeyframesEditorContext != null)
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_editor.KeyframesEditorContext.OnKeyframesDeselect(_editor);
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else
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_editor.ClearSelection();
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keyframe.IsSelected = true;
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_editor.UpdateTangents();
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}
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if (_editor.ShowCollapsed)
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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 < _editor._points.Count; i++)
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{
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var p = _editor._points[i];
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if (p.Index == keyframe.Index)
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p.IsSelected = keyframe.IsSelected;
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}
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}
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StartMouseCapture();
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Focus();
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Tooltip?.Hide();
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return true;
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}
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}
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else if (underMouse is TangentPoint tangent && tangent.Visible)
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{
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if (_leftMouseDown)
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{
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// Start moving tangent
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StartMouseCapture();
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_isMovingTangent = true;
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_movedKeyframes = false;
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_movingTangent = tangent;
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_editor.OnEditingStart();
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Focus();
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Tooltip?.Hide();
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return true;
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}
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}
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else
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{
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if (_leftMouseDown)
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{
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// Start selecting
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StartMouseCapture();
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if (_editor.KeyframesEditorContext != null)
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_editor.KeyframesEditorContext.OnKeyframesDeselect(_editor);
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else
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_editor.ClearSelection();
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_editor.UpdateTangents();
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Focus();
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return true;
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}
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if (_rightMouseDown)
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{
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// Start navigating
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StartMouseCapture();
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Focus();
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return true;
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}
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}
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Focus();
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return true;
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}
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/// <inheritdoc />
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public override bool OnMouseUp(Float2 location, MouseButton button)
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{
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_mousePos = location;
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if (_leftMouseDown && button == MouseButton.Left)
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{
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_leftMouseDown = false;
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EndMouseCapture();
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Cursor = CursorType.Default;
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// Editing tangent
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if (_isMovingTangent)
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{
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if (_movedKeyframes)
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{
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_editor.OnEdited();
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_editor.OnEditingEnd();
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_editor.UpdateKeyframes();
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}
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}
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// Moving keyframes
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else if (_isMovingSelection)
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{
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if (_editor.KeyframesEditorContext != null)
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_editor.KeyframesEditorContext.OnKeyframesMove(_editor, this, location, false, true);
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else
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OnMoveEnd(location);
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}
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_isMovingSelection = false;
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_isMovingTangent = false;
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_movedKeyframes = false;
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}
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if (_rightMouseDown && button == MouseButton.Right)
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{
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_rightMouseDown = false;
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EndMouseCapture();
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Cursor = CursorType.Default;
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// Check if no move has been made at all
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if (!_movedView)
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{
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var selectionCount = _editor.SelectionCount;
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var point = GetChildAt(location) as KeyframePoint;
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if (selectionCount == 0 && point != null)
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{
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// Select node
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selectionCount = 1;
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point.IsSelected = true;
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if (_editor.ShowCollapsed)
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{
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for (int i = 0; i < _editor._points.Count; i++)
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{
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var p = _editor._points[i];
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if (p.Index == point.Index)
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p.IsSelected = point.IsSelected;
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}
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}
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_editor.UpdateTangents();
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}
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var viewRect = _editor._mainPanel.GetClientArea();
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_cmShowPos = PointToKeyframes(location, ref viewRect);
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var cm = new ContextMenu.ContextMenu();
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cm.AddButton("Add keyframe", () => _editor.AddKeyframe(_cmShowPos)).Enabled = _editor.KeyframesCount < _editor.MaxKeyframes;
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if (selectionCount > 0)
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{
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cm.AddButton(selectionCount == 1 ? "Edit keyframe" : "Edit keyframes", () => _editor.EditKeyframes(this, location));
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}
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var totalSelectionCount = _editor.KeyframesEditorContext?.OnKeyframesSelectionCount() ?? selectionCount;
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if (totalSelectionCount > 0)
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{
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cm.AddButton(totalSelectionCount == 1 ? "Remove keyframe" : "Remove keyframes", _editor.RemoveKeyframes);
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cm.AddButton(totalSelectionCount == 1 ? "Copy keyframe" : "Copy keyframes", () => _editor.CopyKeyframes(point));
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}
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cm.AddButton("Paste keyframes", () => KeyframesEditorUtils.Paste(_editor, point?.Time ?? _cmShowPos.X)).Enabled = KeyframesEditorUtils.CanPaste();
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cm.AddSeparator();
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cm.AddButton("Edit all keyframes", () => _editor.EditAllKeyframes(this, location));
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cm.AddButton("Select all keyframes", _editor.SelectAll);
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cm.AddButton("Deselect all keyframes", _editor.DeselectAll);
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cm.AddButton("Copy all keyframes", () =>
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{
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_editor.SelectAll();
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_editor.CopyKeyframes(point);
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});
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if (_editor.EnableZoom != UseMode.Off || _editor.EnablePanning != UseMode.Off)
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{
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cm.AddSeparator();
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cm.AddButton("Show whole curve", _editor.ShowWholeCurve);
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cm.AddButton("Reset view", _editor.ResetView);
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}
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_editor.OnShowContextMenu(cm, selectionCount);
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cm.Show(this, location);
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}
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}
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if (base.OnMouseUp(location, button))
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{
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// Clear flags
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_rightMouseDown = false;
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_leftMouseDown = false;
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return true;
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}
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return true;
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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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// Add keyframe on double click
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var child = GetChildAt(location);
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if (child is not KeyframePoint &&
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child is not TangentPoint &&
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_editor.KeyframesCount < _editor.MaxKeyframes)
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{
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var viewRect = _editor._mainPanel.GetClientArea();
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var pos = PointToKeyframes(location, ref viewRect);
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_editor.AddKeyframe(pos);
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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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public override bool OnMouseWheel(Float2 location, float delta)
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{
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if (base.OnMouseWheel(location, delta))
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return true;
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// Zoom in/out
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var zoom = RootWindow.GetKey(KeyboardKeys.Control);
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var zoomAlt = RootWindow.GetKey(KeyboardKeys.Shift);
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if (_editor.EnableZoom != UseMode.Off && IsMouseOver && !_leftMouseDown && (zoom || zoomAlt))
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{
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// Cache mouse location in curve-space
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var viewRect = _editor._mainPanel.GetClientArea();
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var locationInKeyframes = PointToKeyframes(location, ref viewRect);
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var locationInEditorBefore = _editor.PointFromKeyframes(locationInKeyframes, ref viewRect);
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// Scale relative to the curve size
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var scale = new Float2(delta * 0.1f);
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_editor._mainPanel.GetDesireClientArea(out var mainPanelArea);
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var curveScale = mainPanelArea.Size / _editor._contents.Size;
|
|
scale *= curveScale;
|
|
if (zoomAlt)
|
|
scale.X = 0; // Scale Y axis only
|
|
scale *= GetUseModeMask(_editor.EnableZoom); // Mask scale depending on allowed usage
|
|
_editor.ViewScale += scale;
|
|
|
|
// Zoom towards the mouse position
|
|
var locationInEditorAfter = _editor.PointFromKeyframes(locationInKeyframes, ref viewRect);
|
|
var locationInEditorDelta = locationInEditorAfter - locationInEditorBefore;
|
|
_editor.ViewOffset -= locationInEditorDelta;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
protected override void SetScaleInternal(ref Float2 scale)
|
|
{
|
|
base.SetScaleInternal(ref scale);
|
|
|
|
_editor.UpdateKeyframes();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts the input point from curve editor contents 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>
|
|
private Float2 PointToKeyframes(Float2 point, ref Rectangle curveContentAreaBounds)
|
|
{
|
|
// Contents -> Keyframes
|
|
return new Float2(
|
|
(point.X + Location.X) / UnitsPerSecond,
|
|
(point.Y + Location.Y - curveContentAreaBounds.Height) / -UnitsPerSecond
|
|
);
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesDeselect(IKeyframesEditor editor)
|
|
{
|
|
ClearSelection();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesSelection(IKeyframesEditor editor, ContainerControl control, Rectangle selection)
|
|
{
|
|
if (_points.Count == 0)
|
|
return;
|
|
var selectionRect = Rectangle.FromPoints(_contents.PointFromParent(control, selection.UpperLeft), _contents.PointFromParent(control, selection.BottomRight));
|
|
_contents.UpdateSelection(ref selectionRect);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override int OnKeyframesSelectionCount()
|
|
{
|
|
return SelectionCount;
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesDelete(IKeyframesEditor editor)
|
|
{
|
|
RemoveKeyframesInner();
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesMove(IKeyframesEditor editor, ContainerControl control, Float2 location, bool start, bool end)
|
|
{
|
|
if (SelectionCount == 0)
|
|
return;
|
|
location = _contents.PointFromParent(control, location);
|
|
if (start)
|
|
_contents.OnMoveStart(location);
|
|
else if (end)
|
|
_contents.OnMoveEnd(location);
|
|
else
|
|
_contents.OnMove(location);
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesCopy(IKeyframesEditor editor, float? timeOffset, StringBuilder data)
|
|
{
|
|
List<int> selectedIndices = null;
|
|
for (int i = 0; i < _points.Count; i++)
|
|
{
|
|
var p = _points[i];
|
|
if (p.IsSelected)
|
|
{
|
|
if (selectedIndices == null)
|
|
selectedIndices = new List<int>();
|
|
if (!selectedIndices.Contains(p.Index))
|
|
selectedIndices.Add(p.Index);
|
|
}
|
|
}
|
|
if (selectedIndices == null)
|
|
return;
|
|
var offset = timeOffset ?? 0.0f;
|
|
data.AppendLine(KeyframesEditorUtils.CopyPrefix);
|
|
data.AppendLine(ValueType.FullName);
|
|
for (int i = 0; i < selectedIndices.Count; i++)
|
|
{
|
|
GetKeyframe(selectedIndices[i], out var time, out var value, out var tangentIn, out var tangentOut);
|
|
data.AppendLine((time + offset).ToString(CultureInfo.InvariantCulture));
|
|
data.AppendLine(JsonSerializer.Serialize(value).RemoveNewLine());
|
|
data.AppendLine(JsonSerializer.Serialize(tangentIn).RemoveNewLine());
|
|
data.AppendLine(JsonSerializer.Serialize(tangentOut).RemoveNewLine());
|
|
}
|
|
}
|
|
|
|
/// <inheritdoc />
|
|
public override void OnKeyframesPaste(IKeyframesEditor editor, float? timeOffset, string[] datas, ref int index)
|
|
{
|
|
if (index == -1)
|
|
{
|
|
if (editor == this)
|
|
index = 0;
|
|
else
|
|
return;
|
|
}
|
|
else if (index >= datas.Length)
|
|
return;
|
|
var data = datas[index];
|
|
var offset = timeOffset ?? 0.0f;
|
|
try
|
|
{
|
|
var lines = data.Split(new[] { "\r\n", "\r", "\n" }, StringSplitOptions.RemoveEmptyEntries);
|
|
if (lines.Length < 4)
|
|
return;
|
|
var type = TypeUtils.GetManagedType(lines[0]);
|
|
if (type == null)
|
|
throw new Exception($"Unknown type {lines[0]}.");
|
|
if (type != DefaultValue.GetType())
|
|
throw new Exception($"Mismatching keyframes data type {type.FullName} when pasting into {DefaultValue.GetType().FullName}.");
|
|
var count = (lines.Length - 1) / 4;
|
|
OnEditingStart();
|
|
index++;
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
var time = float.Parse(lines[i * 4 + 1], CultureInfo.InvariantCulture) + offset;
|
|
var value = JsonSerializer.Deserialize(lines[i * 4 + 2], type);
|
|
var tangentIn = JsonSerializer.Deserialize(lines[i * 4 + 3], type);
|
|
var tangentOut = JsonSerializer.Deserialize(lines[i * 4 + 4], type);
|
|
if (FPS.HasValue)
|
|
{
|
|
float fps = FPS.Value;
|
|
time = Mathf.Floor(time * fps) / fps;
|
|
}
|
|
|
|
var pos = AddKeyframe(time, value, tangentIn, tangentOut);
|
|
for (int j = 0; j < _points.Count; j++)
|
|
{
|
|
var p = _points[j];
|
|
if (p.Index == pos)
|
|
p.IsSelected = true;
|
|
}
|
|
}
|
|
OnEditingEnd();
|
|
UpdateKeyframes();
|
|
UpdateTangents();
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Editor.LogWarning("Failed to paste keyframes.");
|
|
Editor.LogWarning(ex.Message);
|
|
Editor.LogWarning(ex);
|
|
}
|
|
}
|
|
}
|
|
}
|