Metis_xctg/Annotation/Label/ToolLine.cs

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

namespace PaintDotNet.Annotation.Label
{
    /// <summary>
    /// 标注->直线->直线
    /// </summary>
    public class ToolLine : ToolObject
    {
        private static Cursor cursor = new Cursor(PdnResources.GetResourceStream("Cursors.AnnotationLine.cur"));
        private static DrawLine line;

        public static void OnMouseDown(ISurfaceBox drawArea, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                if (line == null)
                {
                    Point pointscroll = GetEventPointInArea(drawArea, e.Location);
                    line = new DrawLine(drawArea, pointscroll.X, pointscroll.Y, pointscroll.X + 1, pointscroll.Y + 1);
                    line.ISurfaceBox = drawArea;
                    AddNewObject(drawArea, line);
                }
            }
            else
            {
                OnMouseNotLeftDown(drawArea, null);
            }
        }

        public static void OnMouseMove(ISurfaceBox drawArea, MouseEventArgs e)
        {
            Point pointscroll = GetEventPointInArea(drawArea, e.Location);
            drawArea.Cursor = cursor;

            if (line != null)
            {
                line.MoveHandleTo(pointscroll, 2);
                drawArea.Refresh();
                drawArea.GraphicsList.Dirty = true;
            }
        }

        public static void OnMouseUp(ISurfaceBox drawArea, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                if (line != null)
                {
                    Point pointscroll = GetEventPointInArea(drawArea, e.Location);
                    if (pointscroll.X == drawArea.GraphicsList[0].startPoint.X && pointscroll.Y == drawArea.GraphicsList[0].startPoint.Y)
                    {
                        return;
                    }
                    line.endPoint = pointscroll;
                }

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

        }

        public static void beginWithNewObject()
        {
            line = null;
        }
    }
}