drumkit-old/DrumKit/IOHelper.cs

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C#
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2013-11-18 18:06:17 +00:00
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.Storage;
namespace DrumKit
{
static class IOHelper
{
/// <summary>
/// Gets a folder using relative path.
/// </summary>
public static async Task<StorageFolder> GetFolderRelativeAsync(StorageFolder root, string path)
{
// Split the path
var splitpath = path.Split(new char[] { '\\', '/' }, StringSplitOptions.RemoveEmptyEntries);
var currentdir = root;
// Browse to the last folder in the path
for (int i = 0; i < splitpath.Length; i++)
currentdir = await currentdir.GetFolderAsync(splitpath[i]);
// Return file
return currentdir;
}
/// <summary>
/// Gets a file using relative path
/// </summary>
public static async Task<StorageFile> GetFileRelativeAsync(StorageFolder root, string path)
{
// Split the path
var dir = await GetFolderRelativeAsync(root, System.IO.Path.GetDirectoryName(path));
// Return file
return await dir.GetFileAsync(System.IO.Path.GetFileName(path));
}
/// <summary>
/// Creates a folder using relative path.
/// </summary>
public static async Task<StorageFolder> CreateFolderRelativeAsync(StorageFolder root, string path)
{
// Split the path
var splitpath = path.Split(new char[] { '\\', '/' }, StringSplitOptions.RemoveEmptyEntries);
var currentdir = root;
// Browse to the last folder in the path
for (int i = 0; i < splitpath.Length - 1; i++)
currentdir = await currentdir.GetFolderAsync(splitpath[i]);
// Create folder
return await currentdir.CreateFolderAsync(splitpath.Last(), CreationCollisionOption.ReplaceExisting);
}
/// <summary>
/// Creates a file using a relative path.
/// </summary>
public static async Task<StorageFile> CreateFileRelativeAsync(StorageFolder root, string path)
{
var currentdir = await GetFolderRelativeAsync(root, System.IO.Path.GetDirectoryName(path));
// Create file
return await currentdir.CreateFileAsync(System.IO.Path.GetFileName(path), CreationCollisionOption.ReplaceExisting);
}
/// <summary>
/// Loads an image, and returns an ImageSource (using relative path)
/// </summary>
public static async Task<Windows.UI.Xaml.Media.ImageSource> GetImageAsync(StorageFolder root, string path)
{
// Open file
var file = await GetFileRelativeAsync(root, path);
var stream = await file.OpenReadAsync();
// Get image
var image = new Windows.UI.Xaml.Media.Imaging.BitmapImage();
await image.SetSourceAsync(stream);
// Return result
return image;
}
}
}