Adding the start of a measure tool

Fixed issues with not releasing pointers
Fixed line scaling issues

MatterControlLib/DesignTools/Primitives/MeasureToolObject3D.cs

@@ -0,0 +1,108 @@
+/*
+Copyright (c) 2019, 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
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are those
+of the authors and should not be interpreted as representing official policies,
+either expressed or implied, of the FreeBSD Project.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using MatterHackers.Agg;
+using MatterHackers.Agg.UI;
+using MatterHackers.DataConverters3D;
+using MatterHackers.Localizations;
+using MatterHackers.MatterControl.PartPreviewWindow;
+using MatterHackers.MeshVisualizer;
+using MatterHackers.PolygonMesh;
+using MatterHackers.RenderOpenGl;
+using MatterHackers.VectorMath;
+
+namespace MatterHackers.MatterControl.DesignTools
+{
+
+	public class MeasureToolObject3D : Object3D, IObject3DControlsProvider, IEditorDraw
+	{
+		public MeasureToolObject3D()
+		{
+			Name = "Measure Tool".Localize();
+			Color = Color.FromHSL(.11, .98, .76);
+		}
+
+		public static async Task<MeasureToolObject3D> Create()
+		{
+			var item = new MeasureToolObject3D();
+			await item.Rebuild();
+			return item;
+		}
+
+		public Vector3 StartPosition { get; set; } = new Vector3(-5, 0, 15);
+
+		public Vector3 EndPosition { get; set; } = new Vector3(5, 0, 15);
+
+		public List<IObject3DControl> GetObject3DControls(Object3DControlsLayer object3DControlsLayer)
+		{
+			return new List<IObject3DControl>
+			{
+				new TracedPositionObject3DControl(object3DControlsLayer, this, Color.Green, () => StartPosition, (position) => StartPosition = position),
+				new TracedPositionObject3DControl(object3DControlsLayer, this, Color.Red, () => EndPosition, (position) => EndPosition = position),
+			};
+		}
+
+		public override async void OnInvalidate(InvalidateArgs invalidateType)
+		{
+			if (invalidateType.InvalidateType.HasFlag(InvalidateType.Properties)
+				&& invalidateType.Source == this)
+			{
+				await Rebuild();
+			}
+			else
+			{
+				base.OnInvalidate(invalidateType);
+			}
+		}
+
+		public override Task Rebuild()
+		{
+			this.DebugDepth("Rebuild");
+
+			using (RebuildLock())
+			{
+				using (new CenterAndHeightMaintainer(this))
+				{
+					Mesh = PlatonicSolids.CreateCube(20, 20, 10);
+				}
+			}
+
+			Parent?.Invalidate(new InvalidateArgs(this, InvalidateType.Mesh));
+			return Task.CompletedTask;
+		}
+
+		public void DrawEditor(Object3DControlsLayer object3DControlLayer, List<Object3DView> transparentMeshes, DrawEventArgs e, ref bool suppressNormalDraw)
+		{
+			object3DControlLayer.World.Render3DLine(StartPosition.Transform(Matrix), EndPosition.Transform(Matrix), Color.Black, width: GuiWidget.DeviceScale);
+		}
+	}
+}