Try to fix some errors

File_Format_Library/FileFormats/Layout/Common.cs

@@ -163,6 +163,34 @@ namespace LayoutBXLYT
             }
         }
 
+        public void ApplyNewParentTransform()
+        {
+            //Get the new transform and apply it
+            var transform = GetParentTransform();
+        //    Translate += transform;
+        }
+
+        public void ResetParentTransform(BasePane newParent)
+        {
+            //We need to get the difference in the parent transform and remove it to the current transform of this pane
+            var transform = GetParentTransform();
+            var newParentTransform = newParent.GetParentTransform();
+            Translate -= transform;
+            Translate += newParentTransform;
+        }
+
+        private Vector3F GetParentTransform() {
+            return GetParentTransform(Vector3F.Zero);
+        }
+
+        private Vector3F GetParentTransform(Vector3F translate)
+        {
+            if (Parent != null)
+                return translate += Parent.GetParentTransform(translate);
+            else
+                return translate;
+        }
+
         public void KeepChildrenTransform(float newTransX, float newTransY)
         {
             Vector2F distance = new Vector2F(newTransX - Translate.X, newTransY - Translate.Y);

File_Format_Library/GUI/BFLYT/LayoutHierarchy.cs

@@ -410,7 +410,9 @@ namespace LayoutBXLYT
                         var upperParentNode = targetNode.Parent;
                         var upperParentPane = upperParentNode.Tag as BasePane;
 
+                        draggedPane.ResetParentTransform(upperParentPane);
                         draggedPane.Parent = upperParentPane;
+
                         upperParentPane.Childern.Add(draggedPane);
 
                         upperParentNode.Nodes.Add(draggedNode);
@@ -419,12 +421,16 @@ namespace LayoutBXLYT
                     else //Set the target node as the parent
                     {
                         var parentPane = targetNode.Tag as BasePane;
+                        draggedPane.ResetParentTransform(parentPane);
                         draggedPane.Parent = parentPane;
+
                         parentPane.Childern.Add(draggedPane);
 
                         targetNode.Nodes.Add(draggedNode);
                         targetNode.Expand();
                     }
+
+                    ParentEditor.UpdateViewport();
                 }
             }
         }

Switch_Toolbox_Library/OpenGL/OpenGLHelper.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using OpenTK;
+using OpenTK.Graphics.OpenGL;
+using System.Drawing;
+
+namespace Toolbox.Library
+{
+    public class OpenGLHelper
+    {
+        public static Point convertScreenToWorldCoords(int x, int y)
+        {
+            int[] viewport = new int[4];
+            Matrix4 modelViewMatrix, projectionMatrix;
+            GL.GetFloat(GetPName.ModelviewMatrix, out modelViewMatrix);
+            GL.GetFloat(GetPName.ProjectionMatrix, out projectionMatrix);
+            GL.GetInteger(GetPName.Viewport, viewport);
+            Vector2 mouse;
+            mouse.X = x;
+            mouse.Y = y;
+            Vector4 vector = UnProject(ref projectionMatrix, modelViewMatrix, new Size(viewport[2], viewport[3]), mouse);
+            Point coords = new Point((int)vector.X, (int)vector.Y);
+            return coords;
+        }
+        public static Vector4 UnProject(ref Matrix4 projection, Matrix4 view, Size viewport, Vector2 mouse)
+        {
+            Vector4 vec;
+
+            vec.X = (2.0f * mouse.X / (float)viewport.Width - 1);
+            vec.Y = -(2.0f * mouse.Y / (float)viewport.Height - 1);
+            vec.Z = 0;
+            vec.W = 1.0f;
+
+            Matrix4 viewInv = Matrix4.Invert(view);
+            Matrix4 projInv = Matrix4.Invert(projection);
+
+            Vector4.Transform(ref vec, ref projInv, out vec);
+            Vector4.Transform(ref vec, ref viewInv, out vec);
+
+            if (vec.W > float.Epsilon || vec.W < float.Epsilon)
+            {
+                vec.X /= vec.W;
+                vec.Y /= vec.W;
+                vec.Z /= vec.W;
+            }
+
+            return vec;
+        }
+    }
+}

Toolbox/Shader/Layout/Legacy/Bflyt.vert

@@ -1,5 +1,5 @@
 uniform vec2 uvScale0;
-uniform vec2 uvRotate0;
+uniform float uvRotate0;
 uniform vec2 uvTranslate0;
 uniform int flipTexture;
 uniform mat4 rotationMatrix;
@@ -53,7 +53,10 @@ void main()
 	gl_FrontColor = gl_Color;
 	vec2 texCoord0 = vec2(0.5, 0.5) + uvScale0 * (gl_MultiTexCoord0.xy + (uvTranslate0 / uvScale0 - 0.5));
 	texCoord0 = SetTexCoordType(texCoords0GenType, texCoord0);
+    texCoord0 =	rotateUV(texCoord0, radians(-uvRotate0));
 
 	gl_TexCoord[0].st = SetFlip(texCoord0);
+
+	
 	gl_Position = gl_ModelViewProjectionMatrix * rotationMatrix * gl_Vertex;
 }