/* Copyright (c) Citrix Systems, Inc. 
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer. 
 * *   Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE.
 */

using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace XenAdmin.Controls.ConsoleTab
{
    public partial class FullScreenHint : Form
    {
        [DllImport("Gdi32.dll", EntryPoint = "CreateRoundRectRgn")]
        private static extern IntPtr CreateRoundRectRgn
        (
            int nLeftRect, // x-coordinate of upper-left corner
            int nTopRect, // y-coordinate of upper-left corner
            int nRightRect, // x-coordinate of lower-right corner
            int nBottomRect, // y-coordinate of lower-right corner
            int nWidthEllipse, // height of ellipse
            int nHeightEllipse // width of ellipse
         );

        public FullScreenHint()
        {
            InitializeComponent();
            Region = System.Drawing.Region.FromHrgn(CreateRoundRectRgn(0, 0, Width, Height, 20, 20));
            label1.Text = GetFullScreenMessage();
        }

        private string GetFullScreenMessage()
        {
            switch (Properties.Settings.Default.FullScreenShortcutKey)
            {
                case 0:
                    return Messages.VNC_FULLSCREEN_MESSAGE_CTRL_ALT;
                case 1:
                    return Messages.VNC_FULLSCREEN_MESSAGE_CTRL_ALT_F;
                case 2:
                    return Messages.VNC_FULLSCREEN_MESSAGE_F12;
                default:
                    return Messages.VNC_FULLSCREEN_MESSAGE_CTRL_ENTER;
            }
        }

        private void FullScreenHint_Load(object sender, EventArgs e)
        {
            Opacity = 0.0; // fully transparent at first, will only show after 1 ms
            timer1.Interval = 1;
            timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (Opacity == 0.0)
            {
                Opacity = 0.7;
                timer1.Interval = 100;
            }
            else
            {
                if (Opacity > 0.01)
                    Opacity -= 0.01;
                else
                    Close();
            }
        }
    }
}
