1 files changed, 101 insertions, 0 deletions
diff --git a/src/GenericStack.cs b/src/GenericStack.cs
new file mode 100644
index 00000000..aa5ceeaa
--- /dev/null
+++ b/src/GenericStack.cs
@@ -0,0 +1,101 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace go
+{
+    public class GenericStack : Group
+    {        
+        public int widgetSpacing = 5;
+        public Orientation Orientation = Orientation.Horizontal;
+
+        public GenericStack()
+            : base()
+        {
+            borderWidth = 0;
+            sizeToContent = true;
+
+        }
+
+        int currentXForWidget = 0;
+        int currentYForWidget = 0;
+
+        public override void updateLayout()
+        {
+            //if (!(sizeIsValid && positionIsValid))
+            base.updateLayout();
+
+            currentXForWidget = clientBounds.X;
+            currentYForWidget = clientBounds.Y;
+
+
+            Rectangle contentBounds = Rectangle.Zero;
+
+            GraphicObject[] widgets = new GraphicObject[Children.Count];
+            Children.CopyTo(widgets);
+            foreach (GraphicObject w in widgets)
+            {
+                if (!enoughtSpaceForWidget(w))
+                    advance(w);
+
+                if (enoughtSpaceForWidget(w))
+                {
+                    w.renderBounds.X = currentXForWidget;
+                    w.renderBounds.Y = currentYForWidget;
+
+                    w.positionIsValid = true;
+
+                    contentBounds += w.renderBounds;
+
+                    advance(w);
+                }
+                else
+                    break;
+            }
+
+            contentBounds.Width += borderWidth + margin;
+            contentBounds.Height += borderWidth + margin;
+
+            if (sizeToContent)
+                renderBounds.Size = contentBounds.Size;
+            else if (VerticalScrolling)
+                renderBounds.Size = new Size(renderBounds.Size.Width, contentBounds.Size.Height);
+            else if (HorizontalScrolling)
+                renderBounds.Size = new Size(contentBounds.Size.Width, renderBounds.Size.Height);
+
+            if (layoutIsValid)
+                registerForRedraw();
+        }
+
+
+        bool enoughtSpaceForWidget(GraphicObject w)
+        {
+            if (!sizeToContent)
+            {
+                int nextXForWidget = 0;
+                int nextYForWidget = 0;
+
+                if (Orientation == Orientation.Horizontal)
+                    nextXForWidget = currentXForWidget + w.renderBounds.Width;
+                else
+                    nextYForWidget = nextYForWidget + w.renderBounds.Height;
+
+
+                if (nextXForWidget > clientBounds.Right && !HorizontalScrolling)
+                    return false;
+                if (currentYForWidget > clientBounds.Bottom && !VerticalScrolling)
+                    return false;
+            }
+            return true;
+        }
+        void advance(GraphicObject w)
+        {
+            if (Orientation == Orientation.Horizontal)
+                currentXForWidget = currentXForWidget + widgetSpacing + w.renderBounds.Width;
+            else
+                currentYForWidget = currentYForWidget + widgetSpacing + w.renderBounds.Height;
+
+        }
+    }
+}