xenadmin/XenAdmin/Controls/ChevronToggleButton.cs

/* Copyright (c) Citrix Systems, Inc. 
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 *     following disclaimer. 
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using System;
using System.Drawing;
using System.Windows.Forms;

namespace XenAdmin.Controls
{
    public class ChevronToggleButton : ChevronButton
    {
        public enum TogglePosition
        {
            Collapsed,
            Expanded
        }

        public string ToggleUpText { private get; set; }
        public string ToggleDownText { private get; set; }
        private Image ToggleUpImage { get; set; }
        private Image ToggleDownImage { get; set; }

        private TogglePosition currentTogglePosition;
        public TogglePosition CurrentTogglePosition
        {
            get { return currentTogglePosition; }
            set
            {
                currentTogglePosition = value;
                Image = value == TogglePosition.Collapsed ? ToggleUpImage : ToggleDownImage;
                Text = value == TogglePosition.Collapsed ? ToggleUpText : ToggleDownText;
            }
        }

        public ChevronToggleButton() : this(String.Empty, String.Empty){}

        public ChevronToggleButton(string toogleUpText, string toogleDownText)
        {
            ToggleUpImage = Images.StaticImages.PDChevronRight;
            ToggleDownImage = Images.StaticImages.PDChevronDown;
            ToggleUpText = toogleUpText;
            ToggleDownText = toogleDownText;
            CurrentTogglePosition = TogglePosition.Collapsed;
            ButtonClick += ChevronToggleButton_ButtonClick;
            KeyDown += ChevronToggleButton_KeyDown;
        }

        void ChevronToggleButton_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Space)
                ChevronToggleButton_ButtonClick(sender, e);
        }

        void ChevronToggleButton_ButtonClick(object sender, EventArgs e)
        {
            CurrentTogglePosition = CurrentTogglePosition == TogglePosition.Collapsed ? TogglePosition.Expanded : TogglePosition.Collapsed;
        }
    }
}