You're breathtaking!

2020-12-07 23:40:54 +01:00
commit 6fb9eee74c
5143 changed files with 1153594 additions and 0 deletions
--- a/Source/Editor/GUI/Drag/DragNames.cs
+++ b/Source/Editor/GUI/Drag/DragNames.cs
@@ -0,0 +1,101 @@
+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+using System;
+using System.Collections.Generic;
+using FlaxEngine.GUI;
+
+namespace FlaxEditor.GUI.Drag
+{
+    /// <summary>
+    /// Generic items names collection drag handler.
+    /// </summary>
+    public sealed class DragNames : DragNames<DragEventArgs>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DragNames"/> class.
+        /// </summary>
+        /// <param name="prefix">The drag data prefix.</param>
+        /// <param name="validateFunction">The validation function.</param>
+        public DragNames(string prefix, Func<string, bool> validateFunction)
+        : base(prefix, validateFunction)
+        {
+        }
+    }
+
+    /// <summary>
+    /// Helper class for handling generic items names drag and drop.
+    /// </summary>
+    public class DragNames<U> : DragHelper<string, U> where U : DragEventArgs
+    {
+        /// <summary>
+        /// Gets the drag data prefix.
+        /// </summary>
+        public string DragPrefix { get; }
+
+        /// <summary>
+        /// Creates a new DragHelper
+        /// </summary>
+        /// <param name="prefix">The drag data prefix.</param>
+        /// <param name="validateFunction">The validation function.</param>
+        public DragNames(string prefix, Func<string, bool> validateFunction)
+        : base(validateFunction)
+        {
+            DragPrefix = prefix;
+        }
+
+        /// <inheritdoc/>
+        public override DragData ToDragData(string track) => GetDragData(DragPrefix, track);
+
+        /// <inheritdoc/>
+        public override DragData ToDragData(IEnumerable<string> tracks) => GetDragData(DragPrefix, tracks);
+
+        /// <summary>
+        /// Gets the drag data.
+        /// </summary>
+        /// <param name="dragPrefix">The drag dat prefix.</param>
+        /// <param name="name">The name.</param>
+        /// <returns>The data.</returns>
+        public static DragData GetDragData(string dragPrefix, string name)
+        {
+            if (name == null)
+                throw new ArgumentNullException();
+
+            return new DragDataText(dragPrefix + name);
+        }
+
+        /// <summary>
+        /// Gets the drag data.
+        /// </summary>
+        /// <param name="dragPrefix">The drag dat prefix.</param>
+        /// <param name="names">The names.</param>
+        /// <returns>The data.</returns>
+        public static DragData GetDragData(string dragPrefix, IEnumerable<string> names)
+        {
+            if (names == null)
+                throw new ArgumentNullException();
+
+            string text = dragPrefix;
+            foreach (var item in names)
+                text += item + '\n';
+            return new DragDataText(text);
+        }
+
+        /// <summary>
+        /// Tries to parse the drag data to extract generic items names collection.
+        /// </summary>
+        /// <param name="data">The data.</param>
+        /// <returns>Gathered objects or empty array if cannot get any valid.</returns>
+        public override IEnumerable<string> FromDragData(DragData data)
+        {
+            if (data is DragDataText dataText)
+            {
+                if (dataText.Text.StartsWith(DragPrefix))
+                {
+                    // Remove prefix and split names
+                    return dataText.Text.Remove(0, DragPrefix.Length).Split('\n');
+                }
+            }
+            return new string[0];
+        }
+    }
+}