94 lines
2.4 KiB
C#
94 lines
2.4 KiB
C#
/*
|
|
* Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*/
|
|
|
|
using System;
|
|
using System.Drawing;
|
|
using System.Drawing.Imaging;
|
|
using System.IO;
|
|
using System.Windows;
|
|
using System.Windows.Controls;
|
|
using System.Windows.Documents;
|
|
using System.Windows.Markup;
|
|
using System.Windows.Media.Imaging;
|
|
using SafeExamBrowser.Core.Contracts;
|
|
using Brushes = System.Windows.Media.Brushes;
|
|
using Image = System.Windows.Controls.Image;
|
|
|
|
namespace SafeExamBrowser.UserInterface.Shared.Utilities
|
|
{
|
|
public static class IconResourceLoader
|
|
{
|
|
public static UIElement Load(IconResource resource)
|
|
{
|
|
try
|
|
{
|
|
switch (resource.Type)
|
|
{
|
|
case IconResourceType.Bitmap:
|
|
return LoadBitmapResource(resource);
|
|
case IconResourceType.Embedded:
|
|
return LoadEmbeddedResource(resource);
|
|
case IconResourceType.Xaml:
|
|
return LoadXamlResource(resource);
|
|
default:
|
|
throw new NotSupportedException($"Application icon resource of type '{resource.Type}' is not supported!");
|
|
}
|
|
}
|
|
catch (Exception)
|
|
{
|
|
return NotFoundSymbol();
|
|
}
|
|
}
|
|
|
|
private static UIElement LoadBitmapResource(IconResource resource)
|
|
{
|
|
return new Image
|
|
{
|
|
Source = new BitmapImage(resource.Uri)
|
|
};
|
|
}
|
|
|
|
private static UIElement LoadEmbeddedResource(IconResource resource)
|
|
{
|
|
using (var stream = new MemoryStream())
|
|
{
|
|
var bitmap = new BitmapImage();
|
|
|
|
Icon.ExtractAssociatedIcon(resource.Uri.LocalPath).ToBitmap().Save(stream, ImageFormat.Png);
|
|
|
|
bitmap.BeginInit();
|
|
bitmap.StreamSource = stream;
|
|
bitmap.CacheOption = BitmapCacheOption.OnLoad;
|
|
bitmap.EndInit();
|
|
bitmap.Freeze();
|
|
|
|
return new Image
|
|
{
|
|
Source = bitmap
|
|
};
|
|
}
|
|
}
|
|
|
|
private static UIElement LoadXamlResource(IconResource resource)
|
|
{
|
|
using (var stream = Application.GetResourceStream(resource.Uri)?.Stream)
|
|
{
|
|
return XamlReader.Load(stream) as UIElement;
|
|
}
|
|
}
|
|
|
|
private static UIElement NotFoundSymbol()
|
|
{
|
|
return new TextBlock(new Run("X") { Foreground = Brushes.Red, FontWeight = FontWeights.Bold })
|
|
{
|
|
HorizontalAlignment = HorizontalAlignment.Center,
|
|
VerticalAlignment = VerticalAlignment.Center
|
|
};
|
|
}
|
|
}
|
|
}
|