ToolTipExtension.cs

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// Copyright (c) 2014 Silicon Studio Corp. (http://siliconstudio.co.jp)
// This file is distributed under GPL v3. See LICENSE.md for details.
using System;
using System.Windows.Markup;

namespace SiliconStudio.Presentation.MarkupExtensions
{
    /// <summary>
    /// This markup extension allows to format the text of a tooltip a text and a gesture.
    /// </summary>
    public class ToolTipExtension : MarkupExtension
    {
        private readonly string content;

        /// <summary>
        /// Initializes a new instance of the <see cref="ToolTipExtension"/> class.
        /// </summary>
        /// <param name="text">A string representing the tooltip text</param>
        /// <param name="gesture">A string representing the gesture.</param>
        public ToolTipExtension(string text, string gesture)
        {
            content = !string.IsNullOrEmpty(gesture) ? string.Format("{0} ({1})", text, gesture) : text;
        }

        /// <inheritdoc/>
        public override object ProvideValue(IServiceProvider serviceProvider)
        {
            return content;
        }
    }
}