添加项目文件。

MetroGauges/Controls/DrawTools/PolylineTool.cs

@@ -0,0 +1,116 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Shapes;
+
+namespace MetroGauges.Controls.DrawTools
+{
+    public class PolylineTool : DrawToolBase
+    {
+
+        Polyline currentline = new Polyline();
+        PointCollection ps= new PointCollection();
+
+        public PolylineTool(DesignControl canvas) : base(canvas)
+        {
+            IsStartDraw = true;
+        }
+
+        public override void MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            if (IsStartDraw)
+            {
+                
+                Point mousePosition = Mouse.GetPosition(this.DrawDesign.canvasDesign);
+
+                if (ps.Count == 0)
+                {
+                    ps.Add(mousePosition);
+                    ps.Add(mousePosition);
+
+                    currentline.Points = ps;
+                    currentline.Stroke = new SolidColorBrush(Colors.White);
+                    currentline.StrokeThickness = 1;
+                    //
+                    currentline.DataContext = new ShapDataContext() { IsClosed =false };
+
+                    this.AddShap(currentline);
+
+                    //currentline.Cursor = Cursors.Hand;
+                    //this.CanvasDesign.Children.Add(currentline);
+                    //this.DrawShaps.Add(currentline);
+                }
+                else
+                {
+                    ps.Add(mousePosition);
+                }
+            }
+        }
+
+        public override void Highlight(FrameworkElement shape)
+        {
+            this.DrawDesign.CrrentDrawTool = this;
+            Polyline line = shape as Polyline;
+            (shape.DataContext as ShapDataContext).OringLocation = line.Points;
+
+            base.Highlight(shape);
+            
+        }
+
+        public override void MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
+        {
+            if (IsStartDraw)
+            {
+
+            }
+        }
+
+        public override void MouseMove(object sender, MouseEventArgs e)
+        {
+            if (IsStartDraw)
+            {
+                if (ps.Count > 0)
+                {
+                    Point mousePosition = Mouse.GetPosition(this.DrawDesign.canvasDesign);
+
+                    Point lastPoint = ps[ps.Count - 1];
+
+                    lastPoint.X = mousePosition.X;
+                    lastPoint.Y = mousePosition.Y;
+                    ps[ps.Count - 1] = lastPoint;
+
+                    currentline.Points = ps;
+
+                }
+                
+
+            }
+            
+        }
+
+        public override void MouseRightButtonUp(object sender, MouseButtonEventArgs e)
+        {
+            if (Keyboard.IsKeyDown(Key.LeftCtrl))
+            {
+                
+            }
+
+            if (IsStartDraw)
+            {
+                IsStartDraw = false;
+                ps.Remove(ps[ps.Count - 1]);
+            }
+        }
+
+        public override void m_Root_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            
+        }
+    }
+}