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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="PresetsMenuConverter.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// A Converter to manage the Presets list and turn it into a grouped set of MenuItems
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.Converters
{
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using HandBrakeWPF.Commands;
using HandBrakeWPF.Services.Presets.Interfaces;
using HandBrakeWPF.Services.Presets.Model;
/// <summary>
/// The presets menu converter.
/// </summary>
public class PresetsMenuConverter : IValueConverter
{
/// <summary>Converts a value. </summary>
/// <returns>A converted value. If the method returns null, the valid null value is used.</returns>
/// <param name="value">The value produced by the binding source.</param>
/// <param name="targetType">The type of the binding target property.</param>
/// <param name="parameter">The converter parameter to use.</param>
/// <param name="culture">The culture to use in the converter.</param>
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
IEnumerable<IPresetObject> presets = value as IEnumerable<IPresetObject>;
if (presets == null)
{
return null;
}
Dictionary<string, MenuItem> groupedMenu = new Dictionary<string, MenuItem>();
foreach (IPresetObject item in presets)
{
PresetDisplayCategory category = item as PresetDisplayCategory;
if (category != null)
{
ProcessCategory(groupedMenu, category);
continue;
}
Preset preset = item as Preset;
if (preset != null)
{
ProcessPreset(groupedMenu, preset);
}
}
return groupedMenu.Values.ToList();
}
/// <summary>Converts a value. </summary>
/// <returns>A converted value. If the method returns null, the valid null value is used.</returns>
/// <param name="value">The value that is produced by the binding target.</param>
/// <param name="targetType">The type to convert to.</param>
/// <param name="parameter">The converter parameter to use.</param>
/// <param name="culture">The culture to use in the converter.</param>
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
private void ProcessPreset(Dictionary<string, MenuItem> groupedMenu, Preset preset)
{
if (groupedMenu.ContainsKey(preset.Category))
{
MenuItem newMeuItem = new MenuItem { Header = preset.Name, Tag = preset, Command = new PresetMenuSelectCommand(preset) };
if (preset.IsDefault)
{
newMeuItem.FontStyle = FontStyles.Italic;
}
groupedMenu[preset.Category].Items.Add(newMeuItem);
}
else
{
MenuItem group = new MenuItem();
group.Header = preset.Category;
MenuItem newMeuItem = new MenuItem { Header = preset.Name, Tag = preset, Command = new PresetMenuSelectCommand(preset) };
if (preset.IsDefault)
{
newMeuItem.FontStyle = FontStyles.Italic;
}
group.Items.Add(newMeuItem);
groupedMenu[preset.Category] = group;
}
}
private void ProcessCategory(Dictionary<string, MenuItem> groupedMenu, PresetDisplayCategory category)
{
foreach (Preset preset in category.Presets)
{
this.ProcessPreset(groupedMenu, preset);
}
}
}
}
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