using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace GeoSigmaViewer
{
    public class DrawToolViewPan:DrawTool
    {
        public DrawToolViewPan()
        {
            ToolCursor=DrawCursors.Pan1;
            ItemType=DrawItemType.ITEM_VIEW_PAN;
        }

        public override void OnMouseClick(Drawer drawArea, MouseEventArgs e)
        {
            base.OnMouseClick(drawArea, e);
        }

        public override void OnLButtonDown(Drawer drawArea, MouseEventArgs e)
        {
            if (e.Button==MouseButtons.Left)
            {
                drawArea.Geo.ViewMouseDown(e.X, e.Y);
            }
        }

        public override void OnMouseMove(Drawer drawArea, MouseEventArgs e)
        {
            drawArea.Cursor=ToolCursor;
            if (e.Button==MouseButtons.Left)
            {
                Graphics g = drawArea.CreateGraphics();
                drawArea.Geo.ViewMouseMove(g.GetHdc(), e.X, e.Y);
            }
        }

        public override void OnLButtonUp(Drawer drawArea, MouseEventArgs e)
        {
            drawArea.Geo.ViewMouseUp(e.X, e.Y);
            drawArea.Geo.EnableRedraw(true);
            drawArea.ReDraw();
            drawArea.ResetScrollbar();
        }
    }
}