// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;

namespace ICSharpCode.ILSpy.Controls
{
	public class ZoomButtons : RangeBase
	{
		static ZoomButtons()
		{
			DefaultStyleKeyProperty.OverrideMetadata(typeof(ZoomButtons),
													 new FrameworkPropertyMetadata(typeof(ZoomButtons)));
		}

		public override void OnApplyTemplate()
		{
			base.OnApplyTemplate();

			var uxPlus = (ButtonBase)Template.FindName("uxPlus", this);
			var uxMinus = (ButtonBase)Template.FindName("uxMinus", this);
			var uxReset = (ButtonBase)Template.FindName("uxReset", this);

			if (uxPlus != null)
				uxPlus.Click += OnZoomInClick;
			if (uxMinus != null)
				uxMinus.Click += OnZoomOutClick;
			if (uxReset != null)
				uxReset.Click += OnResetClick;
		}

		const double ZoomFactor = 1.1;

		void OnZoomInClick(object sender, EventArgs e)
		{
			SetCurrentValue(ValueProperty, ZoomScrollViewer.RoundToOneIfClose(this.Value * ZoomFactor));
		}

		void OnZoomOutClick(object sender, EventArgs e)
		{
			SetCurrentValue(ValueProperty, ZoomScrollViewer.RoundToOneIfClose(this.Value / ZoomFactor));
		}

		void OnResetClick(object sender, EventArgs e)
		{
			SetCurrentValue(ValueProperty, 1.0);
		}
	}
}
