using System;
using System.Collections.Generic;
using System.Text;
using Aspecto.GapiDrawNet;
using System.Windows.Forms;
using System.Drawing;

namespace Aspecto.FlowFX
{
    public abstract class GapiDrawEffect : Effect
    {
        private static IntPtr gapiDraw;
        protected static GapiDisplay gapiDisplay;
        public static IntPtr hh;

        private void initialise()
        {
            if (gapiDisplay == null)
            {
                gapiDraw = GdNet.CGapiDraw_Create();
                gapiDisplay = new GapiDisplay(gapiDraw);
                gapiDisplay.OpenDisplay(hh, OpenDisplayOptions.GDDISPLAY_HI_RES_AWARE);
                gapiDisplay.SetDisplayMode(DisplayMode.GDDISPMODE_NORMAL);
            }
        }

        protected GapiSurface TakeScreenShot(int offset)
        {
            GapiSurface surface = new GapiSurface(gapiDraw);
            byte[] screenBits = ImageUtils.CaptureScreen(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, offset);
            surface.CreateSurface(screenBits, 0, screenBits.Length);
            return surface;

        }

        public override void Swap(FlowForm lastForm, FlowForm nextForm, bool opening)
        {
            base.Swap(lastForm, nextForm, opening);
            initialise();
        }
    }
}