CUEControls/IIconManager.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Runtime.InteropServices;
+using System.Drawing;
+using System.Windows.Forms;
+using System.IO;
+
+namespace CUEControls
+{
+	public interface IIconManager
+	{
+		#region public properties
+		/// <summary>
+		/// Return the image list that contains the icons found to date.
+		/// </summary>
+		ImageList ImageList { get; }
+		#endregion
+		#region public methods
+		int GetIconIndex(FileSystemInfo filename, bool open);
+
+		/// <summary>
+		/// Get the icon index associated with a given filename
+		/// </summary>
+		/// <param name="filename">the filename of interest</param>
+		/// <param name="open">if true, the file is "open", most useful for folders</param>
+		/// <returns>the index into the image list for the icon associated with this file</returns>
+		int GetIconIndex(ExtraSpecialFolder folder, bool open);
+		void SetExtensionIcon(string extension, Image icon);
+		void SetExtensionIcon(string extension, Icon icon);
+		string GetFolderPath(ExtraSpecialFolder folder);
+		void SetFolderPath(ExtraSpecialFolder folder, string path);
+		string GetDisplayName(FileSystemInfo filename);
+		string GetDisplayName(ExtraSpecialFolder folder);
+		#endregion
+	}
+
+	// see ShlObj.h
+	public enum ExtraSpecialFolder
+	{
+		// Summary:
+		//     The logical Desktop rather than the physical file system location.
+		Desktop = 0,
+		//
+		// Summary:
+		//     The directory that contains the user's program groups.
+		Programs = 2,
+		//
+		// Summary:
+		//     The "My Documents" folder.
+		//
+		// Version 6.0. The virtual folder representing the My Documents
+		// desktop item. This is equivalent to CSIDL_MYDOCUMENTS.
+		// Previous to Version 6.0. The file system directory used to
+		// physically store a user's common repository of documents.
+		// A typical path is C:\Documents and Settings\username\My Documents.
+		// This should be distinguished from the virtual My Documents folder
+		// in the namespace. To access that virtual folder,
+		// use SHGetFolderLocation, which returns the ITEMIDLIST for the
+		// virtual location, or refer to the technique described in
+		// Managing the File System.
+		MyDocuments = 5,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for the user's favorite
+		//     items.
+		Favorites = 6,
+		//
+		// Summary:
+		//     The directory that corresponds to the user's Startup program group.
+		Startup = 7,
+		//
+		// Summary:
+		//     The directory that contains the user's most recently used documents.
+		Recent = 8,
+		//
+		// Summary:
+		//     The directory that contains the Send To menu items.
+		SendTo = 9,
+		//
+		// Summary:
+		//     The directory that contains the Start menu items.
+		StartMenu = 11,
+		//
+		// Summary:
+		//     The "My Music" folder.
+		MyMusic = 13,
+		//
+		// Summary:
+		//     The directory used to physically store file objects on the desktop.
+		DesktopDirectory = 16,
+		//
+		// Summary:
+		//     The "My Computer" folder.
+		MyComputer = 17,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for document templates.
+		Templates = 21,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for application-specific
+		//     data for the current roaming user.
+		//
+		// Version 4.71. The file system directory that serves as
+		// a common repository for application-specific data.
+		// A typical path is C:\Documents and Settings\username\Application Data.
+		// This CSIDL is supported by the redistributable Shfolder.dll
+		// for systems that do not have the Microsoft Internet Explorer 4.0
+		// integrated Shell installed
+		ApplicationData = 26,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for application-specific
+		//     data that is used by the current, non-roaming user.
+		//
+		// Version 5.0. The file system directory that serves as a data
+		// repository for local (nonroaming) applications. A typical path
+		// is C:\Documents and Settings\username\Local Settings\Application Data.
+		LocalApplicationData = 28,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for temporary Internet files.
+		//
+		// Version 4.72. The file system directory that serves as
+		// a common repository for temporary Internet files. A typical
+		// path is C:\Documents and Settings\username\Local Settings\Temporary Internet Files.
+		InternetCache = 32,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for Internet cookies.
+		//
+		// The file system directory that serves as a common repository
+		// for Internet cookies. A typical path is
+		// C:\Documents and Settings\username\Cookies.
+		Cookies = 33,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for Internet history items.
+		History = 34,
+		//
+		// Summary:
+		//     The directory that serves as a common repository for application-specific
+		//     data that is used by all users.
+		//
+		// Version 5.0. The file system directory containing
+		// application data for all users. A typical path is
+		// C:\Documents and Settings\All Users\Application Data.
+		CommonApplicationData = 35,
+
+		// Summary:
+		//     The Windows directory.
+		//
+		// Version 5.0. The Windows directory or SYSROOT.
+		// This corresponds to the %windir% or %SYSTEMROOT% environment
+		// variables. A typical path is C:\Windows.
+		Windows = 0x0024,
+
+		//
+		// Summary:
+		//     The System directory.
+		//
+		// Version 5.0. The Windows System folder. A typical
+		// path is C:\Windows\System32.
+		System = 37,
+
+		//
+		// Summary:
+		//     The program files directory.
+		//
+		// Version 5.0. The Program Files folder. A typical
+		// path is C:\Program Files.
+		ProgramFiles = 38,
+		//
+		// Summary:
+		//     The "My Pictures" folder.
+		//
+		// Version 5.0. The file system directory that serves as
+		// a common repository for image files. A typical path is
+		// C:\Documents and Settings\username\My Documents\My Pictures.
+		MyPictures = 39,
+		// User Profile
+		Profile = 0x0028,
+		//
+		// Summary:
+		//     The directory for components that are shared across applications.
+		//
+		// Version 5.0. A folder for components that are shared across
+		// applications. A typical path is C:\Program Files\Common.
+		// Valid only for Windows NT, Windows 2000, and Windows XP systems.
+		// Not valid for Windows Millennium Edition (Windows Me).
+		CommonProgramFiles = 43,
+
+		// The file system directory that contains documents
+		// that are common to all users. A typical paths is
+		// C:\Documents and Settings\All Users\Documents.
+		// Valid for Windows NT systems and Microsoft Windows 95 and
+		// Windows 98 systems with Shfolder.dll installed.
+		CommonDocuments = 0x002e,
+
+		// Version 5.0. The file system directory containing
+		// administrative tools for all users of the computer.
+		CommonAdministrativeTools = 0x002f,
+
+		// Version 5.0. The file system directory that is used
+		// to store administrative tools for an individual user.
+		// The Microsoft Management Console (MMC) will save customized
+		// consoles to this directory, and it will roam with the user.
+		AdministrativeTools = 0x0030,
+
+		// Music common to all users
+		CommonMusic = 0x0035
+
+		// Version 5.0. Combine this CSIDL with any of the following CSIDLs
+		// to force the creation of the associated folder.
+		// CreateFlag = 0x8000
+	}
+
+	public unsafe class MonoIconMgr : IIconManager
+	{
+		#region private variables
+		private ImageList m_image_list;
+		private IDictionary<int, int> m_index_map;
+		private IDictionary<string, int> m_extension_map;
+		#endregion
+
+		#region constructor
+		/// <summary>
+		/// This creates a new shell icon manager.
+		/// </summary>
+		public MonoIconMgr()
+		{
+			m_image_list = new ImageList();
+
+			m_index_map = new Dictionary<int, int>();
+			m_extension_map = new Dictionary<string, int>();
+			m_image_list.ImageSize = new Size(16, 16);
+			m_image_list.ColorDepth = ColorDepth.Depth32Bit;
+			m_image_list.Images.Add(Properties.Resources.folder);
+		}
+		#endregion
+
+		#region public properties
+		/// <summary>
+		/// Return the image list that contains the icons found to date.
+		/// </summary>
+		public ImageList ImageList
+		{
+			get
+			{
+				return m_image_list;
+			}
+		}
+		#endregion
+
+		#region public methods
+		/// <summary>
+		/// Get the icon index associated with a given filename
+		/// </summary>
+		/// <param name="filename">the filename of interest</param>
+		/// <param name="open">if true, the file is "open", most useful for folders</param>
+		/// <returns>the index into the image list for the icon associated with this file</returns>
+		public int GetIconIndex(FileSystemInfo filename, bool open)
+		{
+			int iIcon;
+			if (filename is FileInfo && m_extension_map.TryGetValue(filename.Extension.ToLower(), out iIcon)) 
+				return iIcon;
+			//iIcon = MapIcon(System.Drawing.SystemIcons.Application, info.iIcon);
+			//DestroyIcon(info.hIcon);
+			return 0;
+		}
+
+		/// <summary>
+		/// Get the icon index associated with a given filename
+		/// </summary>
+		/// <param name="filename">the filename of interest</param>
+		/// <param name="open">if true, the file is "open", most useful for folders</param>
+		/// <returns>the index into the image list for the icon associated with this file</returns>
+		public int GetIconIndex(ExtraSpecialFolder folder, bool open)
+		{
+			return 0;
+		}
+		#endregion
+
+		#region private methods
+
+		//private int MapIcon(IntPtr hIcon, int iIcon)
+		//{
+		//    int index = 0;
+		//    if (!m_index_map.TryGetValue(iIcon, out index))
+		//    {
+		//        m_image_list.Images.Add(Icon.FromHandle(hIcon));
+		//        index = m_image_list.Images.Count - 1;
+		//        m_index_map.Add(iIcon, index);
+		//    }
+		//    return index;
+		//}
+
+		public void SetExtensionIcon(string extension, Image icon)
+		{
+			m_image_list.Images.Add(extension, icon);
+			m_extension_map.Add(extension, m_image_list.Images.Count - 1);
+		}
+
+		public void SetExtensionIcon(string extension, Icon icon)
+		{
+			m_image_list.Images.Add(extension, icon);
+			m_extension_map.Add(extension, m_image_list.Images.Count - 1);
+		}
+
+		public string GetFolderPath(ExtraSpecialFolder folder)
+		{
+			switch (folder)
+			{
+				case ExtraSpecialFolder.MyComputer:
+					return "/";
+			}
+			return Environment.GetFolderPath((Environment.SpecialFolder)folder);
+		}
+
+		public void SetFolderPath(ExtraSpecialFolder folder, string path)
+		{
+			throw new Exception("SetFolderPath not supported");
+		}
+
+		public string GetDisplayName(FileSystemInfo filename)
+		{
+			return filename.Name;
+		}
+
+		public string GetDisplayName(ExtraSpecialFolder folder)
+		{
+			switch (folder)
+			{
+				case ExtraSpecialFolder.MyComputer:
+					return "/";
+			}
+			return Path.GetFileName(Environment.GetFolderPath((Environment.SpecialFolder) folder));
+		}
+		#endregion
+	}
+}