/*

  This Source Code Form is subject to the terms of the Mozilla Public

  License, v. 2.0. If a copy of the MPL was not distributed with this

  file, You can obtain one at http://mozilla.org/MPL/2.0/.

  Copyright (C) 2010-2011 Michael Möller <mmoeller@openhardwaremonitor.org>

*/

using System;

using System.Drawing;

using System.Windows.Forms;

namespace OpenHardwareMonitor.GUI {

  public abstract class Gadget : IDisposable {

    private GadgetWindow window;

    public Gadget() {

      this.window = new GadgetWindow();

      this.window.Paint += delegate(object sender, PaintEventArgs e) {

        OnPaint(e);

      };

    }

    public virtual void Dispose() {

      window.Dispose();

    }

    public Point Location {

      get {

        return window.Location;

      }

      set {

        window.Location = value;

      }

    }

    public event EventHandler LocationChanged {

      add {

        window.LocationChanged += value;

      }

      remove {

        window.LocationChanged -= value;

      }

    }

    public virtual Size Size {

      get {

        return window.Size; 

      }

      set {        

        this.window.Size = value;

      }

    }

    public event EventHandler SizeChanged {

      add {

        window.SizeChanged += value;

      }

      remove {

        window.SizeChanged -= value;

      }

    }

    public byte Opacity {

      get {

        return window.Opacity;

      }

      set {

        window.Opacity = value;

      }

    }

    public bool LockPositionAndSize {

      get {

        return window.LockPositionAndSize;

      }

      set {

        window.LockPositionAndSize = value;

      }

    }

    public bool AlwaysOnTop {

      get {

        return window.AlwaysOnTop;

      }

      set {

        window.AlwaysOnTop = value;

      }

    }

    public ContextMenu ContextMenu {

      get {

        return window.ContextMenu;

      }

      set {

        window.ContextMenu = value;

      }

    }

    public event HitTestEventHandler HitTest {

      add {

        window.HitTest += value;

      }

      remove {

        window.HitTest -= value;

      }

    }

    public event MouseEventHandler MouseDoubleClick {

      add {

        window.MouseDoubleClick += value;

      }

      remove {

        window.MouseDoubleClick -= value;

      }

    }

    public bool Visible {

      get {

        return window.Visible;

      }

      set {

        if (value != window.Visible) {

          window.Visible = value;

          if (VisibleChanged != null)

            VisibleChanged(this, EventArgs.Empty);

          if (value)

            Redraw();          

        }

      }

    }

    public event EventHandler VisibleChanged;

    public void Redraw() {

      window.Redraw();

    }

    protected abstract void OnPaint(PaintEventArgs e);

  }

}