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

namespace JRCookbookControls
{

    internal static class modSharedRoutines
    {
        internal static void ShowInsertionBar(Control control,  JRCookbookControls.InsertLocation insertLocation)
        {
            if (insertLocation == InsertLocation.InsertBefore)
            {
                DrawLine(control, 0, 0, control.Width - 1, 0, System.Drawing.SystemColors.MenuHighlight);
            }
            else if (insertLocation == InsertLocation.InsertAfter)
            {
                DrawLine(control, 0, control.Height - 1, control.Width - 1, control.Height - 1, System.Drawing.SystemColors.MenuHighlight);
            }
        }

        internal static void HideInsertionBar(Control control)
        {
            DrawLine(control, 0, 0, control.Width - 1, 0, System.Drawing.SystemColors.Control);
            DrawLine(control, 0, control.Height - 1, control.Width - 1, control.Height - 1, System.Drawing.SystemColors.Control);
        }

        internal static void DragStarted(Control control)
        {
            control.BackColor = System.Drawing.SystemColors.MenuHighlight;
        }

        internal static void DragEnded(Control control)
        {
            control.BackColor = System.Drawing.SystemColors.Control;
        }

        private static void DrawLine(Control control, int x1, int y1, int x2, int y2, Color color)
        {
            System.Drawing.Pen myPen;
            myPen = new System.Drawing.Pen(color, 1);
            System.Drawing.Graphics line = control.CreateGraphics();
            line.DrawLine(myPen, x1, y1, x2, y2);

            //control.Refresh();

            myPen.Dispose();
            line.Dispose();
        }

    }
}