mattercontrol/MatterControlLib/DesignTools/Operations/RotateObject3D_2.cs

/*
Copyright (c) 2018, Lars Brubaker, John Lewin
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

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   list of conditions and the following disclaimer.
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   and/or other materials provided with the distribution.

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*/

using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Threading.Tasks;
using MatterHackers.Agg.UI;
using MatterHackers.DataConverters3D;
using MatterHackers.Localizations;
using MatterHackers.MatterControl.DesignTools.EditableTypes;
using MatterHackers.MatterControl.PartPreviewWindow;
using MatterHackers.MeshVisualizer;
using MatterHackers.VectorMath;
using Newtonsoft.Json;

namespace MatterHackers.MatterControl.DesignTools.Operations
{
	public class RotateObject3D_2 : TransformWrapperObject3D, IEditorDraw
	{
		public RotateObject3D_2()
		{
			Name = "Rotate".Localize();
		}

		public RotateObject3D_2(IObject3D itemToRotate, Vector3 normal, double angleDegrees)
			: this()
		{
			WrapItems(new IObject3D[] { itemToRotate });

			RotateAbout.Normal = normal;
			AngleDegrees = angleDegrees;
		}

		public RotateObject3D_2(IObject3D itemToRotate, double xRadians = 0, double yRadians = 0, double zRadians = 0)
			: this()
		{
			WrapItems(new IObject3D[] { itemToRotate });

			// set the rotation
			RotateAbout.Normal = Vector3.UnitZ.TransformNormal(Matrix4X4.CreateRotation(new Vector3(xRadians, yRadians, zRadians)));
		}

		public RotateObject3D_2(IObject3D itemToRotate, Vector3 rotation)
			: this(itemToRotate, rotation.X, rotation.Y, rotation.Z)
		{
		}

		public override void WrapSelectedItemAndSelect(InteractiveScene scene)
		{
			base.WrapSelectedItemAndSelect(scene);

			// use source item as the wrapper may have cloned it
			var aabb = UntransformedChildren.GetAxisAlignedBoundingBox();
			this.RotateAbout.Origin = aabb.Center;
		}

		public override void WrapItems(IEnumerable<IObject3D> items, UndoBuffer undoBuffer = null)
		{
			base.WrapItems(items, undoBuffer);

			// use source item as the wrapper may have cloned it
			var aabb = UntransformedChildren.GetAxisAlignedBoundingBox();
			this.RotateAbout.Origin = aabb.Center;
		}

		public DirectionAxis RotateAbout { get; set; } = new DirectionAxis() { Origin = Vector3.Zero, Normal = Vector3.UnitZ };

		[MaxDecimalPlaces(2)]
		[DisplayName("Angle")]
		[Slider(3, 360, Easing.EaseType.Cubic, snapDistance: 1)]
		public DoubleOrExpression AngleDegrees { get; set; } = 0;

		[JsonIgnore]
		public Matrix4X4 RotationMatrix
		{
			get
			{
				var angleRadians = MathHelper.DegreesToRadians(AngleDegrees.Value(this));
				var rotation = Matrix4X4.CreateTranslation(-RotateAbout.Origin)
					* Matrix4X4.CreateRotation(RotateAbout.Normal, angleRadians)
					* Matrix4X4.CreateTranslation(RotateAbout.Origin);

				return rotation;
			}
		}

		public void DrawEditor(Object3DControlsLayer layer, DrawEventArgs e)
		{
			if (layer.Scene.SelectedItem != null
				&& layer.Scene.SelectedItem.DescendantsAndSelf().Where((i) => i == this).Any())
			{
				layer.World.RenderDirectionAxis(RotateAbout, this.WorldMatrix(), 30);
			}
		}

		public AxisAlignedBoundingBox GetEditorWorldspaceAABB(Object3DControlsLayer layer)
		{
			if (layer.Scene.SelectedItem != null
				&& layer.Scene.SelectedItem.DescendantsAndSelf().Where((i) => i == this).Any())
			{
				return WorldViewExtensions.GetWorldspaceAabbOfRenderDirectionAxis(RotateAbout, this.WorldMatrix(), 30);
			}

			return AxisAlignedBoundingBox.Empty();
		}


		public override async void OnInvalidate(InvalidateArgs invalidateArgs)
		{
			if ((invalidateArgs.InvalidateType.HasFlag(InvalidateType.Children)
				|| invalidateArgs.InvalidateType.HasFlag(InvalidateType.Matrix)
				|| invalidateArgs.InvalidateType.HasFlag(InvalidateType.Mesh))
				&& invalidateArgs.Source != this
				&& !RebuildLocked)
			{
				await Rebuild();
			}
			else if (SheetObject3D.NeedsRebuild(this, invalidateArgs))
			{
				await Rebuild();
			}
			else if (invalidateArgs.InvalidateType.HasFlag(InvalidateType.Properties)
				&& invalidateArgs.Source == this)
			{
				await Rebuild();
			}

			base.OnInvalidate(invalidateArgs);
		}

		public override Task Rebuild()
		{
			this.DebugDepth("Rebuild");
			using (RebuildLock())
			{
				// set the matrix for the inner object
				ItemWithTransform.Matrix = RotationMatrix;
			}

			this.CancelAllParentBuilding();
			Parent?.Invalidate(new InvalidateArgs(this, InvalidateType.Matrix));

			return Task.CompletedTask;
		}
	}
}