// -----------------------------------------------------------------------
// <copyright file="Util.cs">
// TODO: Update copyright text.
// </copyright>
// -----------------------------------------------------------------------

namespace Plane.Windows.Messages
{
    using System.Drawing;
    using System.Windows;
    using System.Windows.Interop;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;

    /// <summary>
    /// TODO: Update summary.
    /// </summary>
    internal static class Util
    {
        internal static ImageSource ToImageSource(this Icon icon)
        {
            ImageSource imageSource = Imaging.CreateBitmapSourceFromHIcon(
                icon.Handle,
                Int32Rect.Empty,
                BitmapSizeOptions.FromEmptyOptions());

            return imageSource;
        }

        /// <summary>
        /// Keyboard Accellerators are used in Windows to allow easy shortcuts to controls like Buttons and 
        /// MenuItems. These allow users to press the Alt key, and a shortcut key will be highlighted on the 
        /// control. If the user presses that key, that control will be activated.
        /// This method checks a string if it contains a keyboard accellerator. If it doesn't, it adds one to the
        /// beginning of the string. If there are two strings with the same accellerator, Windows handles it.
        /// The keyboard accellerator character for WPF is underscore (_). It will not be visible.
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        internal static string TryAddKeyboardAccellerator(this string input)
        {
            const string accellerator = "_";            // This is the default WPF accellerator symbol - used to be & in WinForms

            // If it already contains an accellerator, do nothing
            if (input.Contains(accellerator)) return input;

            return accellerator + input;
        }
    }
}