Move source code into "Source" folder

Source/LibationWinForms/Dialogs/DirectorySelectControl.cs

@@ -0,0 +1,112 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows.Forms;
+using Dinah.Core;
+using LibationFileManager;
+
+namespace LibationWinForms.Dialogs
+{
+	public partial class DirectorySelectControl : UserControl
+	{
+		private class DirectoryComboBoxItem
+		{
+			public string Description { get; }
+			public Configuration.KnownDirectories Value { get; }
+			private readonly DirectorySelectControl _parentControl;
+
+			public string FullPath => _parentControl.AddSubDirectoryToPath(Configuration.GetKnownDirectoryPath(Value));
+
+			/// <summary>Displaying relative paths is confusing. UI should display absolute equivalent</summary>
+			public string UiDisplayPath => Value == Configuration.KnownDirectories.AppDir ? _parentControl.AddSubDirectoryToPath(Configuration.AppDir_Absolute) : FullPath;
+
+			public DirectoryComboBoxItem(DirectorySelectControl parentControl, Configuration.KnownDirectories knownDirectory)
+			{
+				_parentControl = parentControl;
+
+				Value = knownDirectory;
+				Description = Value.GetDescription();
+			}
+
+			public override string ToString() => Description;
+		}
+
+		public string SelectedDirectory => selectedItem?.FullPath;
+
+		private string _subDirectory;
+		internal string AddSubDirectoryToPath(string path) => string.IsNullOrWhiteSpace(_subDirectory) ? path : System.IO.Path.Combine(path, _subDirectory);
+		internal string RemoveSubDirectoryFromPath(string path)
+		{
+			if (string.IsNullOrWhiteSpace(_subDirectory))
+				return path;
+
+			path = path?.Trim() ?? "";
+			if (string.IsNullOrWhiteSpace(path))
+				return path;
+
+			var bottomDir = System.IO.Path.GetFileName(path);
+			if (_subDirectory.EqualsInsensitive(bottomDir))
+				return System.IO.Path.GetDirectoryName(path);
+
+			return path;
+		}
+
+		private DirectoryComboBoxItem selectedItem => (DirectoryComboBoxItem)this.directoryComboBox.SelectedItem;
+
+		public DirectorySelectControl() => InitializeComponent();
+
+		/// <summary>Set items for combobox</summary>
+		/// <param name="knownDirectories">List rather than IEnumerable so that client can determine display order</param>
+		/// <param name="defaultDirectory">Optional default item to select</param>
+		public void SetDirectoryItems(List<Configuration.KnownDirectories> knownDirectories, Configuration.KnownDirectories? defaultDirectory = null, string subDirectory = null)
+		{
+			// set this 1st so all DirectoryComboBoxItems can reference it
+			_subDirectory = subDirectory;
+
+			this.directoryComboBox.Items.Clear();
+
+			foreach (var dir in knownDirectories.Where(d => d != Configuration.KnownDirectories.None).Distinct())
+				this.directoryComboBox.Items.Add(new DirectoryComboBoxItem(this, dir));
+
+			SelectDirectory(defaultDirectory);
+		}
+
+		/// <summary>set selection</summary>
+		/// <param name="directory"></param>
+		/// <returns>True is there was a matching entry</returns>
+		public bool SelectDirectory(string directory)
+		{
+			directory = directory?.Trim() ?? "";
+
+			var noSubDir = RemoveSubDirectoryFromPath(directory);
+			var knownDir = Configuration.GetKnownDirectory(noSubDir);
+			return SelectDirectory(knownDir);
+		}
+
+		/// <summary>set selection</summary>
+		/// <param name="directory"></param>
+		/// <returns>True is there was a matching entry</returns>
+		public bool SelectDirectory(Configuration.KnownDirectories? directory)
+		{
+			if (directory is null || directory == Configuration.KnownDirectories.None)
+				return false;
+
+			// set default
+			var item = this.directoryComboBox.Items.Cast<DirectoryComboBoxItem>().SingleOrDefault(item => item.Value == directory.Value);
+			if (item is null)
+				return false;
+
+			this.directoryComboBox.SelectedItem = item;
+			return true;
+		}
+
+		private void DirectorySelectControl_Load(object sender, EventArgs e)
+		{
+			if (this.DesignMode)
+				return;
+
+		}
+
+		private void directoryComboBox_SelectedIndexChanged(object sender, EventArgs e) => this.textBox1.Text = selectedItem.UiDisplayPath;
+	}
+}