mattercontrol/MatterControlLib/DesignTools/Operations/Path/LinearExtrudeObject3D.cs

/*
Copyright (c) 2017, 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:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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of the authors and should not be interpreted as representing official policies,
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*/

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MatterHackers.Agg;
using MatterHackers.Agg.UI;
using MatterHackers.Agg.VertexSource;
using MatterHackers.DataConverters3D;
using MatterHackers.DataConverters3D.UndoCommands;
using MatterHackers.Localizations;
using MatterHackers.MatterControl.PartPreviewWindow;
using MatterHackers.Plugins.EditorTools;
using MatterHackers.PolygonMesh;
using MatterHackers.PolygonMesh.Processors;
using MatterHackers.VectorMath;
using Newtonsoft.Json;

namespace MatterHackers.MatterControl.DesignTools.Operations
{
	public class LinearExtrudeObject3D : Object3D
#if DEBUG
, IPropertyGridModifier
#endif
	{
		[Description("The height of the extrusion")]
		[Slider(.1, 50, Easing.EaseType.Quadratic, useSnappingGrid: true)]
		[MaxDecimalPlaces(2)]
		public DoubleOrExpression Height { get; set; } = 5;

#if DEBUG
		[Description("Bevel the top of the extrusion")]
		public bool BevelTop { get; set; } = false;

		[Description("The amount to inset the bevel")]
		public DoubleOrExpression BevelInset { get; set; } = 2;

		/// <summary>
		[Description("The height the bevel will start")]
		/// </summary>
		public DoubleOrExpression BevelStart { get; set; } = 4;

		public IntOrExpression BevelSteps { get; set; } = 1;
#endif

		public override bool CanApply => true;

		[JsonIgnore]
		private IVertexSource VertexSource
		{
			get
			{
				var item = this.Descendants().Where((d) => d is IPathObject).FirstOrDefault();
				if (item is IPathObject pathItem)
				{
					return pathItem.VertexSource;
				}

				return null;
			}
		}

		public override void Apply(UndoBuffer undoBuffer)
		{
			if (Mesh == null)
			{
				Cancel(undoBuffer);
			}
			else
			{
				// only keep the mesh and get rid of everything else
				using (RebuildLock())
				{
					var meshOnlyItem = new Object3D()
					{
						Mesh = this.Mesh.Copy(CancellationToken.None)
					};

					meshOnlyItem.CopyProperties(this, Object3DPropertyFlags.All);

					// and replace us with the children
					undoBuffer.AddAndDo(new ReplaceCommand(new[] { this }, new[] { meshOnlyItem }));
				}

				Invalidate(InvalidateType.Children);
			}
		}

		public LinearExtrudeObject3D()
		{
			Name = "Linear Extrude".Localize();
		}

		public override async void OnInvalidate(InvalidateArgs eventArgs)
		{
			if ((eventArgs.InvalidateType.HasFlag(InvalidateType.Path)
					|| eventArgs.InvalidateType.HasFlag(InvalidateType.Children))
				&& eventArgs.Source != this
				&& !RebuildLocked)
			{
				await Rebuild();
			}
			else if (eventArgs.InvalidateType.HasFlag(InvalidateType.Properties)
				&& eventArgs.Source == this)
			{
				await Rebuild();
			}
			else
			{
				base.OnInvalidate(eventArgs);
			}
		}

		public override Task Rebuild()
		{
			this.DebugDepth("Rebuild");
			var rebuildLock = RebuildLock();

			bool valuesChanged = false;

			var height = Height.Value(this);
#if DEBUG
			var bevelSteps = BevelSteps.ClampIfNotCalculated(this, 1, 32, ref valuesChanged);
			var bevelStart = BevelStart.ClampIfNotCalculated(this, 0, height, ref valuesChanged);
			var aabb = this.GetAxisAlignedBoundingBox();
			var bevelInset = BevelInset.ClampIfNotCalculated(this, 0, Math.Min(aabb.XSize /2, aabb.YSize / 2), ref valuesChanged);
#endif

			// now create a long running task to do the extrusion
			return ApplicationController.Instance.Tasks.Execute(
				"Linear Extrude".Localize(),
				null,
				(reporter, cancellationToken) =>
				{
					var vertexSource = this.VertexSource;
					List<(double height, double inset)> bevel = null;
#if DEBUG
					if (BevelTop)
					{
						bevel = new List<(double height, double inset)>();
						for (int i = 0; i < bevelSteps; i++)
						{
							var heightRatio = i / (double)bevelSteps;
							height = heightRatio * (height - bevelStart) + bevelStart;
							var insetRatio = (i + 1) / (double)bevelSteps;
							var inset = Easing.Sinusoidal.In(insetRatio) * -bevelInset;
							bevel.Add((height, inset));
						}
					}
#endif

					Mesh = VertexSourceToMesh.Extrude(this.VertexSource, height, bevel);
					if (Mesh.Vertices.Count == 0)
					{
						Mesh = null;
					}

					UiThread.RunOnIdle(() =>
					{
						rebuildLock.Dispose();
						Invalidate(InvalidateType.DisplayValues);
						this.CancelAllParentBuilding();
						Parent?.Invalidate(new InvalidateArgs(this, InvalidateType.Mesh));
					});

					return Task.CompletedTask;
				});
		}

#if DEBUG
		public void UpdateControls(PublicPropertyChange change)
		{
			change.SetRowVisible(nameof(BevelStart), () => BevelTop);
			change.SetRowVisible(nameof(BevelInset), () => BevelTop);
			change.SetRowVisible(nameof(BevelSteps), () => BevelTop);
		}
#endif
	}
}