Changeset 2151

Timestamp:

5/16/2010 11:45:22 AM (21 months ago)

Author:

lowjoel

Message:

Reorganise the extension methods by the class it extends.

File:

• trunk/eraser/Eraser.Util/ExtensionMethods/IO.cs (modified) (3 diffs)

trunk/eraser/Eraser.Util/ExtensionMethods/IO.cs

@@ -50 +50 @@
 
         /// <summary>
+        /// Gets the parent directory of the current <see cref="System.IO.FileSystemInfo"/>
+        /// object.
+        /// </summary>
+        /// <param name="info">The <see cref="System.IO.FileSystemInfo"/> object
+        /// to query its parent.</param>
+        /// <returns>The parent directory of the current
+        /// <see cref="System.IO.FileSystemInfo"/> object, or null if info is
+        /// aleady the root</returns>
+        public static DirectoryInfo GetParent(this FileSystemInfo info)
+        {
+            FileInfo file = info as FileInfo;
+            DirectoryInfo directory = info as DirectoryInfo;
+
+            if (file != null)
+                return file.Directory;
+            else if (directory != null)
+                return directory.Parent;
+            else
+                throw new ArgumentException("Unknown FileSystemInfo type.");
+        }
+
+        /// <summary>
+        /// Moves the provided <see cref="System.IO.FileSystemInfo"/> object
+        /// to the provided path.
+        /// </summary>
+        /// <param name="info">The <see cref="System.IO.FileSystemInfo"/> object
+        /// to move.</param>
+        /// <param name="path">The path to move the object to.</param>
+        public static void MoveTo(this FileSystemInfo info, string path)
+        {
+            FileInfo file = info as FileInfo;
+            DirectoryInfo directory = info as DirectoryInfo;
+
+            if (file != null)
+                file.MoveTo(path);
+            else if (directory != null)
+                directory.MoveTo(path);
+            else
+                throw new ArgumentException("Unknown FileSystemInfo type.");
+        }
+
+        /// <summary>
+        /// Compacts the file path, fitting in the given width.
+        /// </summary>
+        /// <param name="info">The <see cref="System.IO.FileSystemObject"/> that should
+        /// get a compact path.</param>
+        /// <param name="newWidth">The target width of the text.</param>
+        /// <param name="drawFont">The font used for drawing the text.</param>
+        /// <returns>The compacted file path.</returns>
+        public static string GetCompactPath(this FileSystemInfo info, int newWidth, Font drawFont)
+        {
+            using (Control ctrl = new Control())
+            {
+                //First check if the source string is too long.
+                Graphics g = ctrl.CreateGraphics();
+                string longPath = info.FullName;
+                int width = g.MeasureString(longPath, drawFont).ToSize().Width;
+                if (width <= newWidth)
+                    return longPath;
+
+                //It is, shorten it.
+                int aveCharWidth = width / longPath.Length;
+                int charCount = newWidth / aveCharWidth;
+                StringBuilder builder = new StringBuilder();
+                builder.Append(longPath);
+                builder.EnsureCapacity(charCount);
+
+                while (g.MeasureString(builder.ToString(), drawFont).Width > newWidth)
+                {
+                    if (!NativeMethods.PathCompactPathEx(builder, longPath,
+                        (uint)charCount--, 0))
+                    {
+                        return string.Empty;
+                    }
+                }
+
+                return builder.ToString();
+            }
+        }
+
+        /// <summary>
+        /// Checks whether the path given is compressed.
+        /// </summary>
+        /// <param name="info">The <see cref="System.IO.FileInfo"/> object</param>
+        /// <returns>True if the file or folder is compressed.</returns>
+        public static bool IsCompressed(this FileSystemInfo info)
+        {
+            ushort compressionStatus = 0;
+            uint bytesReturned = 0;
+
+            using (SafeFileHandle handle = NativeMethods.CreateFile(info.FullName,
+                NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE,
+                0, IntPtr.Zero, NativeMethods.OPEN_EXISTING,
+                NativeMethods.FILE_FLAG_BACKUP_SEMANTICS, IntPtr.Zero))
+            {
+                if (NativeMethods.DeviceIoControl(handle, NativeMethods.FSCTL_GET_COMPRESSION,
+                    IntPtr.Zero, 0, out compressionStatus, sizeof(ushort), out bytesReturned,
+                    IntPtr.Zero))
+                {
+                    return compressionStatus != NativeMethods.COMPRESSION_FORMAT_NONE;
+                }
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// Compresses the given file.
+        /// </summary>
+        /// <param name="info">The File to compress.</param>
+        /// <returns>The success ofthe compression</returns>
+        public static bool Compress(this FileSystemInfo info)
+        {
+            return SetCompression(info.FullName, true);
+        }
+
+        /// <summary>
+        /// Uncompresses the given file.
+        /// </summary>
+        /// <param name="info">The File to uncompress.</param>
+        /// <returns>The success ofthe uncompression</returns>
+        public static bool Uncompress(this FileSystemInfo info)
+        {
+            return SetCompression(info.FullName, false);
+        }
+
+        /// <summary>
+        /// Sets whether the file system object pointed to by path is compressed.
+        /// </summary>
+        /// <param name="path">The path to the file or folder.</param>
+        /// <returns>True if the file or folder has its compression value set.</returns>
+        private static bool SetCompression(string path, bool compressed)
+        {
+            ushort compressionStatus = compressed ?
+                NativeMethods.COMPRESSION_FORMAT_DEFAULT :
+                NativeMethods.COMPRESSION_FORMAT_NONE;
+            uint bytesReturned = 0;
+
+            using (SafeFileHandle handle = NativeMethods.CreateFile(path,
+                NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE,
+                0, IntPtr.Zero, NativeMethods.OPEN_EXISTING,
+                NativeMethods.FILE_FLAG_BACKUP_SEMANTICS, IntPtr.Zero))
+            {
+                return NativeMethods.DeviceIoControl(handle, NativeMethods.FSCTL_SET_COMPRESSION,
+                    ref compressionStatus, sizeof(ushort), IntPtr.Zero, 0, out bytesReturned,
+                    IntPtr.Zero);
+            }
+        }
+
+        /// <summary>
+        /// Uses SHGetFileInfo to retrieve the description for the given file,
+        /// folder or drive.
+        /// </summary>
+        /// <param name="info">The file system object to query the description of.</param>
+        /// <returns>A string containing the description</returns>
+        public static string GetDescription(this FileSystemInfo info)
+        {
+            NativeMethods.SHFILEINFO shfi = new NativeMethods.SHFILEINFO();
+            NativeMethods.SHGetFileInfo(info.FullName, 0, ref shfi, Marshal.SizeOf(shfi),
+                NativeMethods.SHGetFileInfoFlags.SHGFI_DISPLAYNAME);
+            return shfi.szDisplayName;
+        }
+
+        /// <summary>
+        /// Uses SHGetFileInfo to retrieve the icon for the given file, folder or
+        /// drive.
+        /// </summary>
+        /// <param name="info">The file system object to query the description of.</param>
+        /// <returns>An Icon object containing the bitmap</returns>
+        public static Icon GetIcon(this FileSystemInfo info)
+        {
+            NativeMethods.SHFILEINFO shfi = new NativeMethods.SHFILEINFO();
+            NativeMethods.SHGetFileInfo(info.FullName, 0, ref shfi, Marshal.SizeOf(shfi),
+                NativeMethods.SHGetFileInfoFlags.SHGFI_SMALLICON |
+                NativeMethods.SHGetFileInfoFlags.SHGFI_ICON);
+
+            if (shfi.hIcon != IntPtr.Zero)
+                return Icon.FromHandle(shfi.hIcon);
+            else
+                throw new IOException(string.Format(CultureInfo.CurrentCulture,
+                    S._("Could not load file icon from {0}"), info.FullName),
+                    Win32ErrorCode.GetExceptionForWin32Error(Marshal.GetLastWin32Error()));
+        }
+
+        /// <summary>
+        /// Determines if a given file is protected by SFC.
+        /// </summary>
+        /// <param name="info">The file systme object to check.</param>
+        /// <returns>True if the file is protected.</returns>
+        public static bool IsProtectedSystemFile(this FileSystemInfo info)
+        {
+            return NativeMethods.SfcIsFileProtected(IntPtr.Zero, info.FullName);
+        }
+
+        /// <summary>
         /// Copies an existing file to a new file, allowing the monitoring of the progress
         /// of the copy operation.
@@ -67 +262 @@
                     NativeMethods.CopyProgressFunctionCallbackReasons dwCallbackReason,
                     IntPtr hSourceFile, IntPtr hDestinationFile, IntPtr lpData)
-                {
-                    return progress(TotalFileSize, TotalBytesTransferred);
-                };
+            {
+                return progress(TotalFileSize, TotalBytesTransferred);
+            };
 
             if (!NativeMethods.CopyFileEx(info.FullName, destFileName, callback, IntPtr.Zero,
@@ -120 +315 @@
             /// </summary>
             Stop = 2
-        }
-
-        /// <summary>
-        /// Gets the parent directory of the current <see cref="System.IO.FileSystemInfo"/>
-        /// object.
-        /// </summary>
-        /// <param name="info">The <see cref="System.IO.FileSystemInfo"/> object
-        /// to query its parent.</param>
-        /// <returns>The parent directory of the current
-        /// <see cref="System.IO.FileSystemInfo"/> object, or null if info is
-        /// aleady the root</returns>
-        public static DirectoryInfo GetParent(this FileSystemInfo info)
-        {
-            FileInfo file = info as FileInfo;
-            DirectoryInfo directory = info as DirectoryInfo;
-
-            if (file != null)
-                return file.Directory;
-            else if (directory != null)
-                return directory.Parent;
-            else
-                throw new ArgumentException("Unknown FileSystemInfo type.");
-        }
-
-        /// <summary>
-        /// Moves the provided <see cref="System.IO.FileSystemInfo"/> object
-        /// to the provided path.
-        /// </summary>
-        /// <param name="info">The <see cref="System.IO.FileSystemInfo"/> object
-        /// to move.</param>
-        /// <param name="path">The path to move the object to.</param>
-        public static void MoveTo(this FileSystemInfo info, string path)
-        {
-            FileInfo file = info as FileInfo;
-            DirectoryInfo directory = info as DirectoryInfo;
-
-            if (file != null)
-                file.MoveTo(path);
-            else if (directory != null)
-                directory.MoveTo(path);
-            else
-                throw new ArgumentException("Unknown FileSystemInfo type.");
-        }
-
-        /// <summary>
-        /// Compacts the file path, fitting in the given width.
-        /// </summary>
-        /// <param name="info">The <see cref="System.IO.FileSystemObject"/> that should
-        /// get a compact path.</param>
-        /// <param name="newWidth">The target width of the text.</param>
-        /// <param name="drawFont">The font used for drawing the text.</param>
-        /// <returns>The compacted file path.</returns>
-        public static string GetCompactPath(this FileSystemInfo info, int newWidth, Font drawFont)
-        {
-            using (Control ctrl = new Control())
-            {
-                //First check if the source string is too long.
-                Graphics g = ctrl.CreateGraphics();
-                string longPath = info.FullName;
-                int width = g.MeasureString(longPath, drawFont).ToSize().Width;
-                if (width <= newWidth)
-                    return longPath;
-
-                //It is, shorten it.
-                int aveCharWidth = width / longPath.Length;
-                int charCount = newWidth / aveCharWidth;
-                StringBuilder builder = new StringBuilder();
-                builder.Append(longPath);
-                builder.EnsureCapacity(charCount);
-
-                while (g.MeasureString(builder.ToString(), drawFont).Width > newWidth)
-                {
-                    if (!NativeMethods.PathCompactPathEx(builder, longPath,
-                        (uint)charCount--, 0))
-                    {
-                        return string.Empty;
-                    }
-                }
-
-                return builder.ToString();
-            }
-        }
-
-        /// <summary>
-        /// Checks whether the path given is compressed.
-        /// </summary>
-        /// <param name="info">The <see cref="System.IO.FileInfo"/> object</param>
-        /// <returns>True if the file or folder is compressed.</returns>
-        public static bool IsCompressed(this FileSystemInfo info)
-        {
-            ushort compressionStatus = 0;
-            uint bytesReturned = 0;
-
-            using (SafeFileHandle handle = NativeMethods.CreateFile(info.FullName,
-                NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE,
-                0, IntPtr.Zero, NativeMethods.OPEN_EXISTING,
-                NativeMethods.FILE_FLAG_BACKUP_SEMANTICS, IntPtr.Zero))
-            {
-                if (NativeMethods.DeviceIoControl(handle, NativeMethods.FSCTL_GET_COMPRESSION,
-                    IntPtr.Zero, 0, out compressionStatus, sizeof(ushort), out bytesReturned,
-                    IntPtr.Zero))
-                {
-                    return compressionStatus != NativeMethods.COMPRESSION_FORMAT_NONE;
-                }
-            }
-
-            return false;
-        }
-
-        /// <summary>
-        /// Compresses the given file.
-        /// </summary>
-        /// <param name="info">The File to compress.</param>
-        /// <returns>The success ofthe compression</returns>
-        public static bool Compress(this FileSystemInfo info)
-        {
-            return SetCompression(info.FullName, true);
-        }
-
-        /// <summary>
-        /// Uncompresses the given file.
-        /// </summary>
-        /// <param name="info">The File to uncompress.</param>
-        /// <returns>The success ofthe uncompression</returns>
-        public static bool Uncompress(this FileSystemInfo info)
-        {
-            return SetCompression(info.FullName, false);
-        }
-
-        /// <summary>
-        /// Sets whether the file system object pointed to by path is compressed.
-        /// </summary>
-        /// <param name="path">The path to the file or folder.</param>
-        /// <returns>True if the file or folder has its compression value set.</returns>
-        private static bool SetCompression(string path, bool compressed)
-        {
-            ushort compressionStatus = compressed ?
-                NativeMethods.COMPRESSION_FORMAT_DEFAULT :
-                NativeMethods.COMPRESSION_FORMAT_NONE;
-            uint bytesReturned = 0;
-
-            using (SafeFileHandle handle = NativeMethods.CreateFile(path,
-                NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE,
-                0, IntPtr.Zero, NativeMethods.OPEN_EXISTING,
-                NativeMethods.FILE_FLAG_BACKUP_SEMANTICS, IntPtr.Zero))
-            {
-                return NativeMethods.DeviceIoControl(handle, NativeMethods.FSCTL_SET_COMPRESSION,
-                    ref compressionStatus, sizeof(ushort), IntPtr.Zero, 0, out bytesReturned,
-                    IntPtr.Zero);
-            }
-        }
-
-        /// <summary>
-        /// Uses SHGetFileInfo to retrieve the description for the given file,
-        /// folder or drive.
-        /// </summary>
-        /// <param name="info">The file system object to query the description of.</param>
-        /// <returns>A string containing the description</returns>
-        public static string GetDescription(this FileSystemInfo info)
-        {
-            NativeMethods.SHFILEINFO shfi = new NativeMethods.SHFILEINFO();
-            NativeMethods.SHGetFileInfo(info.FullName, 0, ref shfi, Marshal.SizeOf(shfi),
-                NativeMethods.SHGetFileInfoFlags.SHGFI_DISPLAYNAME);
-            return shfi.szDisplayName;
-        }
-
-        /// <summary>
-        /// Uses SHGetFileInfo to retrieve the icon for the given file, folder or
-        /// drive.
-        /// </summary>
-        /// <param name="info">The file system object to query the description of.</param>
-        /// <returns>An Icon object containing the bitmap</returns>
-        public static Icon GetIcon(this FileSystemInfo info)
-        {
-            NativeMethods.SHFILEINFO shfi = new NativeMethods.SHFILEINFO();
-            NativeMethods.SHGetFileInfo(info.FullName, 0, ref shfi, Marshal.SizeOf(shfi),
-                NativeMethods.SHGetFileInfoFlags.SHGFI_SMALLICON |
-                NativeMethods.SHGetFileInfoFlags.SHGFI_ICON);
-
-            if (shfi.hIcon != IntPtr.Zero)
-                return Icon.FromHandle(shfi.hIcon);
-            else
-                throw new IOException(string.Format(CultureInfo.CurrentCulture,
-                    S._("Could not load file icon from {0}"), info.FullName),
-                    Win32ErrorCode.GetExceptionForWin32Error(Marshal.GetLastWin32Error()));
-        }
-
-        /// <summary>
-        /// Determines if a given file is protected by SFC.
-        /// </summary>
-        /// <param name="info">The file systme object to check.</param>
-        /// <returns>True if the file is protected.</returns>
-        public static bool IsProtectedSystemFile(this FileSystemInfo info)
-        {
-            return NativeMethods.SfcIsFileProtected(IntPtr.Zero, info.FullName);
         }