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.Controls;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;

namespace MetroGauges.Controls
{
    public class RectangleTool : DrawToolBase
    {
        /// <summary>
        /// 是否选择工具
        /// </summary>
        public bool IsSelecedTool { get; set; }

        Rectangle currentRect = new Rectangle();
        bool isMouseDown = false;

        public RectangleTool(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);
                currentRect.Stroke = new SolidColorBrush(Colors.White);
                currentRect.StrokeThickness = 1;

                Canvas.SetLeft(currentRect, mousePosition.X);
                Canvas.SetTop(currentRect, mousePosition.Y);

                currentRect.DataContext = new Point() { X = mousePosition.X, Y = mousePosition.Y };

                this.AddShap(currentRect);

                
            }
        }

        public override void MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            isMouseDown = false;
            IsStartDraw = false;
            this.DrawDesign.DisabledMove = false;
            if (currentRect.Width == 0 || currentRect.Height == 0)
            {
                this.DrawDesign.canvasDesign.Children.Remove(currentRect);
            }
            else
            {
                if (IsSelecedTool)
                {
                    this.DrawDesign.canvasDesign.Children.Remove(currentRect);
                    this.DrawDesign.DrawShaps.Remove(currentRect);

                    
                }
            }
        }

        public override void MouseMove(object sender, MouseEventArgs e)
        {
            if (IsStartDraw && isMouseDown)
            {
                Point mousePosition = Mouse.GetPosition(this.DrawDesign.canvasDesign);
                Point sourePoint = (Point)currentRect.DataContext;

                currentRect.Width = Math.Abs(mousePosition.X - sourePoint.X);
                currentRect.Height = Math.Abs(mousePosition.Y - sourePoint.Y);

                if (mousePosition.X - sourePoint.X < 0) // 左边
                {
                    if (mousePosition.Y - sourePoint.Y < 0) //上面
                    {
                        Canvas.SetLeft(currentRect, sourePoint.X - currentRect.Width);
                        Canvas.SetTop(currentRect, sourePoint.Y + (mousePosition.Y - sourePoint.Y));
                    }
                    else //下面
                    {
                        Canvas.SetLeft(currentRect, sourePoint.X - currentRect.Width);
                    }
                }
                else // 右边
                {
                    if (mousePosition.Y - sourePoint.Y < 0) //上面
                    {
                        Canvas.SetTop(currentRect, sourePoint.Y+ (mousePosition.Y- sourePoint.Y));
                    }
                    else //下面
                    {
                        
                    }
                }
                
               
            }
        }

        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);
        }
    }
}