functional card/row edit and drag

RowTitleBoxBackground.cs

@@ -0,0 +1,39 @@
+using Godot;
+using System;
+
+public partial class RowTitleBoxBackground : Panel
+{
+	// Called when the node enters the scene tree for the first time.
+	public override void _Ready()
+	{
+	}
+
+	// Called every frame. 'delta' is the elapsed time since the previous frame.
+	public override void _Process(double delta)
+	{
+	}
+	public override void _GuiInput(InputEvent @event)
+    {
+		if (@event.IsActionPressed("LocationMenu"))
+		{
+			RowMenu();
+		}
+    }
+	private void RowMenu()
+	{
+		this.GetParentOfType<game>().EditRowInMenu(this.GetParentOfType<row>());
+	}
+	public override Variant _GetDragData(Vector2 atPosition)
+	{
+		var prev = MakePreview();
+		var prev_root = new Control();
+		prev_root.AddChild(prev);
+		prev.Position = prev.Size / -2;
+		SetDragPreview(prev_root);
+		return this.GetParentOfType<row>();
+	}
+	private Panel MakePreview()
+	{
+		return Duplicate(0) as Panel;
+	}
+}