Metis_xctg/Annotation/Label/ToolPolygon.cs

using PaintDotNet.Annotation.Enum;
using System.Drawing;
using System.Windows.Forms;

namespace PaintDotNet.Annotation.Label
{
    /// <summary>
    /// 标注->多边形->多边形
    /// </summary>
    public class ToolPolygon : ToolObject
    {
        private static DrawPolygon newPolygon;

        private static Cursor cursor = new Cursor(PdnResources.GetResourceStream("Cursors.AnnotationPencil.cur"));
        
        /// <summary>
        /// Left nouse button is pressed
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public static void OnMouseDown(ISurfaceBox drawArea, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                Point p = GetEventPointInArea(drawArea, e.Location);
                if (newPolygon == null)
                {
                    newPolygon = new DrawPolygon(drawArea, p.X, p.Y);
                    newPolygon.ISurfaceBox = drawArea;
                    AddNewObject(drawArea, newPolygon);
                }
                else
                {
                    newPolygon.setNextPoint(p);
                }
                drawArea.Refresh();
            }
            else
            {
                if (newPolygon != null)
                {
                    if (newPolygon.GetPoints().Count <= 2)
                    {
                        drawArea.GraphicsList.RemoveAt(0);
                    }
                }
                OnMouseNotLeftDown(drawArea, newPolygon);

                newPolygon = null;

                if (!drawArea.ContinuousDrawingLabel())
                {
                    drawArea.ActiveTool = DrawToolType.Pointer;
                }
                OnMouseUpTwo(drawArea, e);
            }
        }

        /// <summary>
        /// 鼠标移动，需要进行绘制
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public static void OnMouseMove(ISurfaceBox drawArea, MouseEventArgs e)
        {

        }

        /// <summary>
        /// 覆盖父类的鼠标抬起事件，什么都不做
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public static void OnMouseUp(ISurfaceBox drawArea, MouseEventArgs e)
        {
            
        }


        public static void OnMouseClick(ISurfaceBox surfacebox, MouseEventArgs e)
        {

        }

        /// <summary>
        /// 鼠标左键双击
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public static void OnMouseLeftDoubleClick(ISurfaceBox surfacebox, MouseEventArgs e)
        {

        }

        /// <summary>
        /// 删除按键
        /// </summary>
        /// <param name="surfacebox"></param>
        /// <param name="e"></param>
        public static void OnDelKeyDown(ISurfaceBox surfacebox, MouseEventArgs e)
        {

        }

        /// <summary>
        /// 删除划痕处理&污迹处理选择区域的痕迹
        /// </summary>
        /// <param name="surfacebox"></param>
        /// <param name="e"></param>
        public static void OnDel2KeyDown(ISurfaceBox surfacebox, MouseEventArgs e)
        {

        }

        /// <summary>
        /// 清空全部时调用该方法，将可能未绘制完的对象清空
        /// </summary>
        public static void beginWithNewObject()
        {
            newPolygon = null;
        }
    }
}