Convert Control to ContainerControl.

Source/Engine/UI/GUI/Common/Border.cs

@@ -5,7 +5,7 @@ namespace FlaxEngine.GUI
     /// <summary>
     /// Border control that draws the border around the control edges (inner and outer sides).
     /// </summary>
-    public class Border : Control
+    public class Border : ContainerControl
     {
         /// <summary>
         /// Gets or sets the color used to draw border lines.
@@ -30,9 +30,9 @@ namespace FlaxEngine.GUI
         }
 
         /// <inheritdoc />
-        public override void Draw()
+        public override void DrawSelf()
         {
-            base.Draw();
+            base.DrawSelf();
 
             Render2D.DrawRectangle(new Rectangle(Vector2.Zero, Size), BorderColor, BorderWidth);
         }

Source/Engine/UI/GUI/Common/Button.cs

@@ -7,7 +7,7 @@ namespace FlaxEngine.GUI
     /// <summary>
     /// Button control
     /// </summary>
-    public class Button : Control
+    public class Button : ContainerControl
     {
         /// <summary>
         /// The default height fro the buttons.
@@ -171,7 +171,7 @@ namespace FlaxEngine.GUI
         }
 
         /// <inheritdoc />
-        public override void Draw()
+        public override void DrawSelf()
         {
             // Cache data
             Rectangle clientRect = new Rectangle(Vector2.Zero, Size);

Source/Engine/UI/GUI/Common/ProgressBar.cs

@@ -8,7 +8,7 @@ namespace FlaxEngine.GUI
     /// Progress bar control shows visual progress of the action or set of actions.
     /// </summary>
     /// <seealso cref="FlaxEngine.GUI.Control" />
-    public class ProgressBar : Control
+    public class ProgressBar : ContainerControl
     {
         /// <summary>
         /// The value.
@@ -160,9 +160,9 @@ namespace FlaxEngine.GUI
         }
 
         /// <inheritdoc />
-        public override void Draw()
+        public override void DrawSelf()
         {
-            base.Draw();
+            base.DrawSelf();
 
             float progressNormalized = (_current - _minimum) / _maximum;
             if (progressNormalized > 0.001f)

Source/Engine/UI/GUI/Common/RenderToTextureControl.cs

@@ -105,7 +105,7 @@ namespace FlaxEngine.GUI
         }
 
         /// <inheritdoc />
-        public override void Draw()
+        public override void DrawSelf()
         {
             // Draw cached texture
             if (_texture && !_invalid && !_isDuringTextureDraw)
@@ -119,7 +119,7 @@ namespace FlaxEngine.GUI
             }
 
             // Draw default UI directly
-            base.Draw();
+            base.DrawSelf();
         }
 
         /// <inheritdoc />

Source/Engine/UI/GUI/Common/RichTextBoxBase.cs

@@ -220,7 +220,7 @@ namespace FlaxEngine.GUI
         }
 
         /// <inheritdoc />
-        public override void Draw()
+        public override void DrawSelf()
         {
             // Cache data
             var rect = new Rectangle(Vector2.Zero, Size);

Source/Engine/UI/GUI/Common/TextBox.cs

@@ -132,7 +132,7 @@ namespace FlaxEngine.GUI
         }
 
         /// <inheritdoc />
-        public override void Draw()
+        public override void DrawSelf()
         {
             // Cache data
             var rect = new Rectangle(Vector2.Zero, Size);

Source/Engine/UI/GUI/Common/TextBoxBase.cs

@@ -9,7 +9,7 @@ namespace FlaxEngine.GUI
     /// <summary>
     /// Base class for all text box controls which can gather text input from the user.
     /// </summary>
-    public abstract class TextBoxBase : Control
+    public abstract class TextBoxBase : ContainerControl
     {
         /// <summary>
         /// The text separators (used for words skipping).