albumspane.cs

这是一个小型的相片管理器

		#region AdjustButtons

		/// <summary>
		/// adjusts the position and the visibility of the up&down buttons
		/// </summary>
		private void AdjustButtons() {
			if (SelAlbum != null) {
				try {
					// show and position the buttons
					bUp.Top = tvAlbums.SelectedNode.Bounds.Top + bUp.Height;
					if (bUp.Top < paneTitle.Height)
						bUp.Top = paneTitle.Height + 1;
					bUp.Left = tvAlbums.Width - bUp.Width * 2 - 4;
					bDown.Top = bUp.Top + bUp.Height;
					bDown.Left = bUp.Left;
					bUp.Show();
					bDown.Show();
				}
				catch {
					bUp.Hide();
					bDown.Hide();
				}
			} else {
				bUp.Hide();
				bDown.Hide();
			}
		}

		#endregion

		#region MoveNode

		/// <summary>
		/// moves the currently selected node (and the albums associated with it) up one pos
		/// </summary>
		private void MoveUp() {
			if (SelAlbum != null) {
				TreeNodeCollection parentNodes;
				TreeNode parent = null;
				bool isExpanded = tvAlbums.SelectedNode.IsExpanded;
				if (tvAlbums.SelectedNode.Parent != null) {
					parentNodes = tvAlbums.SelectedNode.Parent.Nodes;
					parent = tvAlbums.SelectedNode.Parent;
				} else
					parentNodes = tvAlbums.Nodes;

				if (parentNodes.Count > 1 && tvAlbums.SelectedNode.Index != 0) {
					TreeNode newNode = (TreeNode) tvAlbums.SelectedNode.Clone();
					parentNodes.Insert(tvAlbums.SelectedNode.Index - 1, newNode);
					parentNodes.Remove(tvAlbums.SelectedNode);
					tvAlbums.SelectedNode = newNode;

					// apply expanded state
					if (isExpanded == true)
						newNode.Expand();
					else
						newNode.Collapse();

					// save the changes to file
					if (parent != null)
						ParseNode(parent);
					else
						ParseNode(parentNodes);
				}
			}
		}

		/// <summary>
		/// moves the currently selected node (and the albums associated with it) down one pos
		/// </summary>
		private void MoveDown() {
			if (SelAlbum != null) {
				TreeNodeCollection parentNodes;
				TreeNode parent = null;
				bool isExpanded = tvAlbums.SelectedNode.IsExpanded;
				if (tvAlbums.SelectedNode.Parent != null) {
					parentNodes = tvAlbums.SelectedNode.Parent.Nodes;
					parent = tvAlbums.SelectedNode.Parent;
				} else
					parentNodes = tvAlbums.Nodes;

				if (parentNodes.Count > 1 && tvAlbums.SelectedNode.Index < parentNodes.Count - 1) {
					TreeNode newNode = (TreeNode) tvAlbums.SelectedNode.Clone();
					parentNodes.Insert(tvAlbums.SelectedNode.Index + 2, newNode);
					parentNodes.Remove(tvAlbums.SelectedNode);
					tvAlbums.SelectedNode = newNode;

					// apply expanded state
					if (isExpanded == true)
						newNode.Expand();
					else
						newNode.Collapse();

					// save the changes to file
					if (parent != null)
						ParseNode(parent);
					else
						ParseNode(parentNodes);
				}
			}
		}

		#endregion

		#region helper methods

		/// <summary>
		/// loads the component's strings from the language file
		/// </summary>
		public void LoadStrings() {
			// local language strings
			string LsPaneText;
			string LsAddAlbum;
			string LsAddPhotos;
			string LsFiles;
			string LsFolder;
			string LsRen;
			string LsDel;
			string lsProp;
			string lsExpAll;
			string lsColAll;
			string lsUp;
			string lsDown;

			const string ALBUMSPANE = "AlbumsPane";	// the master node which we're looking for in the lang file
			// default language strings
			const string LCPANETEXT = "Albums";
			const string LCADDALBUM = "Add Album...";
			const string LCADDPHOTOS = "Add Photos";
			const string LCFILES = "From File...";
			const string LCFOLDER = "From Folder...";
			const string LCREN = "Rename";
			const string LCDEL = "Delete";
			const string LCWARNING = "Warning";
			const string LCCONFIRMDEL = "This will delete the album, all its subalbums, and all photos within the album and its subalbums, proceed?";
			const string LCPROP = "Properties";
			const string LCPHOTOS = "Photos";
			const string LCEXPALL = "Expand all";
			const string LCCOLALL = "Collapse all";
			const string LCUP = "Move up";
			const string LCDOWN = "Move down";

			try {
				// read the strings from file
				TXmlReader reader = XmlHandler.OpenLangFile();
				LsPaneText = reader.GetString(ALBUMSPANE, "PaneText", LCPANETEXT);
				LsAddAlbum = reader.GetString(ALBUMSPANE, "AddAlbum", LCADDALBUM);
				LsAddPhotos = reader.GetString(ALBUMSPANE, "AddPhotos", LCADDPHOTOS);
				LsFiles = reader.GetString(ALBUMSPANE, "File", LCFILES);
				LsFolder = reader.GetString(ALBUMSPANE, "Folder", LCFOLDER);
				LsRen = reader.GetString(ALBUMSPANE, "Rename", LCREN);
				LsDel = reader.GetString(ALBUMSPANE, "Delete", LCDEL);
				LsWarning = reader.GetString(ALBUMSPANE, "Warning", LCWARNING);
				LsConfirmDel = reader.GetString(ALBUMSPANE, "ConfirmDel", LCCONFIRMDEL);
				lsProp = reader.GetString(ALBUMSPANE, "Properties", LCPROP);
				LsPhotos = reader.GetString(ALBUMSPANE, "Photos", LCPHOTOS);
				lsExpAll = reader.GetString(ALBUMSPANE, "ExpandAll", LCEXPALL);
				lsColAll = reader.GetString(ALBUMSPANE, "CollapseAll", LCCOLALL);
				lsUp = reader.GetString(ALBUMSPANE, "MoveUp", LCUP);
				lsDown = reader.GetString(ALBUMSPANE, "MoveDown", LCDOWN);
				reader.Close();
			}
			catch {
				// if the language file cannot be found use the default values
				//MessageBox.Show(e.Message + " (" + e.FileName + ")\nThus the default (English) values will be used", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
				LsPaneText = LCPANETEXT;
				LsAddAlbum = LCADDALBUM;
				LsAddPhotos = LCADDPHOTOS;
				LsFiles = LCFILES;
				LsFolder = LCFOLDER;
				LsRen = LCREN;
				LsDel = LCDEL;
				LsWarning = LCWARNING;
				LsConfirmDel = LCCONFIRMDEL;
				lsProp = LCPROP;
				LsPhotos = LCPHOTOS;
				lsExpAll = LCEXPALL;
				lsColAll = LCCOLALL;
				lsUp = LCUP;
				lsDown = LCDOWN;
			}

			// assign the string to their controls
			paneTitle.Text = LsPaneText;
			miAddAlbum.Text = LsAddAlbum;
			miAddPhotos.Text = LsAddPhotos;
			miFiles.Text = LsFiles;
			miFolder.Text = LsFolder;
			miRen.Text = LsRen;
			miDel.Text = LsDel;
			miProp.Text = lsProp;
			miExpAll.Text = lsExpAll;
			miColAll.Text = lsColAll;
			miUp.Text = lsUp;
			miDown.Text = lsDown;
		}

		/// <summary>
		/// adds each album in RAlbum to tvAlbums
		/// </summary>
		private void ParseRootAlbum() {
			// prevent tvAlbums from redrawing itself
			tvAlbums.BeginUpdate();

			tvAlbums.Nodes.Clear();
			TreeNode node;
			foreach (Album a in RAlbum.Albums) {
				node = new TreeNode(a.AlbumName);
				node.Tag = a;
				ParseSubAlbums(a, node);
				tvAlbums.Nodes.Add(node);
			}

			// redraw tvAlbums
			tvAlbums.EndUpdate();
		}

		/// <summary>
		/// parses an album's subalbums and adds them to the specified treeNode
		/// </summary>
		private void ParseSubAlbums(Album album, TreeNode tn) {
			TreeNode node;
			foreach (Album a in album.SubAlbums) {
				node = new TreeNode(a.AlbumName);
				node.Tag = a;
				tn.Nodes.Add(node);
				ParseSubAlbums(a, node);
			}
		}

		/// <summary>
		/// Removes the filename from a given path and returns only the directories
		/// </summary>
		private static string GetDirectoryFromFilePath(string path) {
			int i = 0;
			for (i = path.Length - 1; i > 0; i--) {
				if (path[i] == '\\')
					break;
			}

			if (i != 0)
				return path.Substring(0, i);
			else
				return Directory.GetCurrentDirectory();
		}

		private void FireOpenAlbum() {
			try {
				Album a = (Album) tvAlbums.SelectedNode.Tag;
				OpenAlbum(a);
			}
			catch { }
		}

		/// <summary>
		/// used to specify whether the quick album info shall be shown or not
		/// </summary>
		public void UpdateToolTipState(bool active) {
			timerToolTip.Enabled = active;
			ttAlbInfo.Active = active;
		}

		#endregion

		#region Vom Komponenten-Designer generierter Code
		/// <summary> 
		/// Erforderliche Methode f黵 die Designerunterst黷zung. 
		/// Der Inhalt der Methode darf nicht mit dem Code-Editor ge鋘dert werden.
		/// </summary>
		private void InitializeComponent() {
			this.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(AlbumsPane));
			this.tvAlbums = new System.Windows.Forms.TreeView();
			this.contMenu = new System.Windows.Forms.ContextMenu();
			this.miAddAlbum = new System.Windows.Forms.MenuItem();
			this.miAddPhotos = new System.Windows.Forms.MenuItem();
			this.miFiles = new System.Windows.Forms.MenuItem();
			this.miFolder = new System.Windows.Forms.MenuItem();
			this.menuItem5 = new System.Windows.Forms.MenuItem();
			this.miUp = new System.Windows.Forms.MenuItem();
			this.miDown = new System.Windows.Forms.MenuItem();
			this.menuItem6 = new System.Windows.Forms.MenuItem();
			this.miExpAll = new System.Windows.Forms.MenuItem();
			this.miColAll = new System.Windows.Forms.MenuItem();
			this.menuItem4 = new System.Windows.Forms.MenuItem();
			this.miDel = new System.Windows.Forms.MenuItem();
			this.miRen = new System.Windows.Forms.MenuItem();
			this.menuItem1 = new System.Windows.Forms.MenuItem();
			this.miProp = new System.Windows.Forms.MenuItem();
			this.chAlbumN = new System.Windows.Forms.ColumnHeader();
			this.chPhotos = new System.Windows.Forms.ColumnHeader();
			this.paneTitle = new VirtualPhotoOrganizer.Controls.PaneTitle();
			this.ttAlbInfo = new System.Windows.Forms.ToolTip(this.components);
			this.timerToolTip = new System.Windows.Forms.Timer(this.components);
			this.bUp = new System.Windows.Forms.Button();
			this.ilButtons = new System.Windows.Forms.ImageList(this.components);
			this.bDown = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// tvAlbums
			// 
			this.tvAlbums.AllowDrop = true;
			this.tvAlbums.ContextMenu = this.contMenu;
			this.tvAlbums.Cursor = System.Windows.Forms.Cursors.Default;
			this.tvAlbums.HideSelection = false;
			this.tvAlbums.HotTracking = true;
			this.tvAlbums.ImageIndex = -1;
			this.tvAlbums.ImeMode = System.Windows.Forms.ImeMode.NoControl;
			this.tvAlbums.LabelEdit = true;
			this.tvAlbums.Location = new System.Drawing.Point(0, 20);
			this.tvAlbums.Name = "tvAlbums";
			this.tvAlbums.SelectedImageIndex = -1;
			this.tvAlbums.Size = new System.Drawing.Size(208, 332);
			this.tvAlbums.TabIndex = 0;
			this.tvAlbums.KeyDown += new System.Windows.Forms.KeyEventHandler(this.tvAlbums_KeyDown);
			this.tvAlbums.MouseDown += new System.Windows.Forms.MouseEventHandler(this.tvAlbums_MouseDown);
			this.tvAlbums.AfterExpand += new System.Windows.Forms.TreeViewEventHandler(this.tvAlbums_AfterExpand);
			this.tvAlbums.AfterCollapse += new System.Windows.Forms.TreeViewEventHandler(this.tvAlbums_AfterCollapse);
			this.tvAlbums.MouseUp += new System.Windows.Forms.MouseEventHandler(this.tvAlbums_MouseUp);
			this.tvAlbums.DragOver += new System.Windows.Forms.DragEventHandler(this.tvAlbums_DragOver);
			this.tvAlbums.DoubleClick += new System.EventHandler(this.tvAlbums_DoubleClick);
			this.tvAlbums.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.tvAlbums_AfterSelect);
			this.tvAlbums.AfterLabelEdit += new System.Windows.Forms.NodeLabelEditEventHandler(this.tvAlbums_AfterLabelEdit);
			this.tvAlbums.DragEnter += new System.Windows.Forms.DragEventHandler(this.tvAlbums_DragEnter);
			this.tvAlbums.MouseMove += new System.Windows.Forms.MouseEventHandler(this.tvAlbums_MouseMove);
			this.tvAlbums.ItemDrag += new System.Windows.Forms.ItemDragEventHandler(this.tvAlbums_ItemDrag);
			this.tvAlbums.BeforeLabelEdit += new System.Windows.Forms.NodeLabelEditEventHandler(this.tvAlbums_BeforeLabelEdit);
			this.tvAlbums.DragDrop += new System.Windows.Forms.DragEventHandler(this.tvAlbums_DragDrop);
			// 
			// contMenu
			// 
			this.contMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					 this.miAddAlbum,
																					 this.miAddPhotos,
																					 this.menuItem5,
																					 this.miUp,
																					 this.miDown,
																					 this.menuItem6,
																					 this.miExpAll,
																					 this.miColAll,
																					 this.menuItem4,
																					 this.miDel,
																					 this.miRen,
																					 this.menuItem1,
																					 this.miProp});
			this.contMenu.Popup += new System.EventHandler(this.contMenu_Popup);
			// 
			// miAddAlbum
			// 
			this.miAddAlbum.Index = 0;
			this.miAddAlbum.Shortcut = System.Windows.Forms.Shortcut.CtrlN;
			this.miAddAlbum.Text = "添加相册";
			this.miAddAlbum.Click += new System.EventHandler(this.miAddAlbum_Click);
			// 
			// miAddPhotos
			// 
			this.miAddPhotos.Index = 1;
			this.miAddPhotos.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																						this.miFiles,
																						this.miFolder});
			this.miAddPhotos.Text = "添加图片";
			// 
			// miFiles
			// 
			this.miFiles.Index = 0;
			this.miFiles.Text = "从文件";
			this.miFiles.Click += new System.EventHandler(this.miFiles_Click);
			// 
			// miFolder
			// 
			this.miFolder.Index = 1;
			this.miFolder.Text = "从目录";
			this.miFolder.Click += new System.EventHandler(this.miFolder_Click);
			// 
			// menuItem5
			// 
			this.menuItem5.Index = 2;
			this.menuItem5.Text = "-";
			// 
			// miUp
			// 
			this.miUp.Index = 3;
			this.miUp.Shortcut = System.Windows.Forms.Shortcut.CtrlU;
			this.miUp.Text = "上移";
			this.miUp.Click += new System.EventHandler(this.miUp_Click);
			// 
			// miDown
			// 
			this.miDown.Index = 4;
			this.miDown.Shortcut = System.Windows.Forms.Shortcut.CtrlD;
			this.miDown.Text = "下移";
			this.miDown.Click += new System.EventHandler(this.miDown_Click);
			// 
			// menuItem6
			// 
			this.menuItem6.Index = 5;
			this.menuItem6.Text = "-";