84 lines
2.5 KiB
C#
84 lines
2.5 KiB
C#
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using MetroGauges.Controls.DrawTools;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Shapes;
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namespace MetroGauges.Controls
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{
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public class CircleTool : DrawToolBase
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{
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bool isMouseDown = false;
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Path path = new Path() { Stroke = new SolidColorBrush(Colors.White), StrokeThickness = 1, Cursor = Cursors.Hand };
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EllipseGeometry ellipseGeometry = new EllipseGeometry();
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public CircleTool(DesignControl canvas) : base(canvas)
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{
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IsStartDraw = true;
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}
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public override void MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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isMouseDown = true;
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if (IsStartDraw)
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{
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this.DrawDesign.DisabledMove = true;
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Point mousePosition = Mouse.GetPosition(this.DrawDesign.canvasDesign);
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path.Data = ellipseGeometry;
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ellipseGeometry.Center = mousePosition;
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path.DataContext = mousePosition;
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this.AddShap(path);
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}
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}
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public override void MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
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{
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isMouseDown = false;
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IsStartDraw = false;
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this.DrawDesign.DisabledMove = false;
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if (ellipseGeometry.RadiusX == 0)
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{
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this.DrawDesign.canvasDesign.Children.Remove(path);
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}
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}
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public override void MouseMove(object sender, MouseEventArgs e)
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{
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if (IsStartDraw && isMouseDown)
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{
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Point mousePosition = Mouse.GetPosition(this.DrawDesign.canvasDesign);
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Point sourePoint = (Point)path.DataContext;
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ellipseGeometry.RadiusX = Math.Abs(mousePosition.X - sourePoint.X);
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ellipseGeometry.RadiusY = Math.Abs(mousePosition.X - sourePoint.X);
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//ellipseGeometry.RadiusY = Math.Abs(mousePosition.Y - sourePoint.Y); //椭圆
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}
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}
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public override void MouseRightButtonUp(object sender, MouseButtonEventArgs e)
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{
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}
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public override void m_Root_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
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{
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}
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public override void Highlight(FrameworkElement shape)
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{
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this.DrawDesign.CrrentDrawTool = this;
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base.Highlight(shape);
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}
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}
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}
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