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

namespace PaintDotNet.Annotation.Label
{
    /// <summary>
    /// 标注->曲线->折线
    /// </summary>
    public class ToolPolygonLine : ToolObject
    {
        private static Cursor cursor = new Cursor(PdnResources.GetResourceStream("Cursors.AnnotationPencil.cur"));
        
        private static DrawPolygonLine newPolygon;

        /// <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)
            {
                //在点标记和数字标记里面能单独存在
                /**
                Point p = GetEventPointInArea(drawArea, e);
                if (newPolygon == null)
                {
                    newPolygon = new DrawPolygonLine(p.X, p.Y);
                    AddNewObject(drawArea, newPolygon);
                }
                else
                {
                    newPolygon.setNextPoint(p);
                }
                **/
                Point p = GetEventPointInArea(drawArea, e.Location);
                if (newPolygon == null)
                {
                    newPolygon = new DrawPolygonLine(drawArea, p.X, p.Y);
                    newPolygon.ISurfaceBox = drawArea;
                    AddNewObject(drawArea, newPolygon);
                }
                else
                {
                    newPolygon.setNextPoint(p);
                }
                drawArea.Refresh();
            }
            else
            {
                OnMouseNotLeftDown(drawArea, newPolygon);
                newPolygon = null;
                if (!drawArea.ContinuousDrawingLabel())
                {
                    drawArea.ActiveTool = DrawToolType.Pointer;
                }
                OnMouseUpTwo(drawArea, e);
            }
        }

        /// <summary>
        /// 目前设计的交互形式是左键点击
        /// 所以鼠标移动什么都不做
        /// 如果交互形式改变，再说
        /// </summary>
        /// <param name="drawArea"></param>
        /// <param name="e"></param>
        public static void OnMouseMove(ISurfaceBox drawArea, MouseEventArgs e)
        {
            if (newPolygon != null)
            {
                Point p = GetEventPointInArea(drawArea, e.Location);
                int count = newPolygon.pointArray.Count;
                newPolygon.pointArray[count - 1] = p;
                drawArea.Refresh();
            }
        }

        /// <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;
        }
    }
}