using MetroGauges.Controls.DrawTools;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;

namespace MetroGauges.Controls
{
    public class CircleTool : DrawToolBase
    {
        bool isMouseDown = false;

        Path path = new Path() { Stroke = new SolidColorBrush(Colors.White), StrokeThickness = 1, Cursor = Cursors.Hand };
        EllipseGeometry ellipseGeometry = new EllipseGeometry();

        public CircleTool(DesignControl canvas) : base(canvas)
        {
            IsStartDraw = true;
        }

        public override void MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            isMouseDown = true;
            if (IsStartDraw)
            {
                this.DrawDesign.DisabledMove = true;

                Point mousePosition = Mouse.GetPosition(this.DrawDesign.canvasDesign);
                path.Data = ellipseGeometry;
                ellipseGeometry.Center = mousePosition;
                path.DataContext = mousePosition;

                this.AddShap(path);
            }
        }

        public override void MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            isMouseDown = false;
            IsStartDraw = false;
            this.DrawDesign.DisabledMove = false;

            if (ellipseGeometry.RadiusX == 0)
            {
                this.DrawDesign.canvasDesign.Children.Remove(path);
            }

        }

        public override void MouseMove(object sender, MouseEventArgs e)
        {
            if (IsStartDraw && isMouseDown)
            {
                Point mousePosition = Mouse.GetPosition(this.DrawDesign.canvasDesign);
                Point sourePoint = (Point)path.DataContext;
                ellipseGeometry.RadiusX = Math.Abs(mousePosition.X - sourePoint.X);
                ellipseGeometry.RadiusY = Math.Abs(mousePosition.X - sourePoint.X);
                //ellipseGeometry.RadiusY = Math.Abs(mousePosition.Y - sourePoint.Y); //椭圆
            }
        }

        public override void MouseRightButtonUp(object sender, MouseButtonEventArgs e)
        {

        }

        public override void m_Root_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            
        }

        public override void Highlight(FrameworkElement shape)
        {
            this.DrawDesign.CrrentDrawTool = this;
            base.Highlight(shape);
        }
    }
}