UnityEditor.RectangleTool.CalculateScaleValueMatrix C# (CSharp) Method

        public bool CalculateScaleValueMatrix(float fromValue, float toValue, float offsetValue, float pivotValue, out Matrix4x4 transform, out bool flipKeys)
        {
            transform = Matrix4x4.identity;
            flipKeys = false;
            float num = 0.001f;
            float f = toValue - pivotValue;
            float num3 = fromValue - pivotValue;
            if ((Mathf.Abs(f) - offsetValue) < 0f)
            {
                return false;
            }
            f = (Mathf.Sign(f) != Mathf.Sign(num3)) ? (f + offsetValue) : (f - offsetValue);
            if (Mathf.Approximately(num3, 0f))
            {
                transform.SetTRS(new Vector3(0f, f, 0f), Quaternion.identity, Vector3.one);
                flipKeys = false;
                return true;
            }
            if (Mathf.Abs(f) < num)
            {
                f = (f >= 0f) ? num : -num;
            }
            float y = f / num3;
            transform.SetTRS(new Vector3(0f, pivotValue, 0f), Quaternion.identity, Vector3.one);
            transform *= Matrix4x4.TRS(Vector3.zero, Quaternion.identity, new Vector3(1f, y, 1f));
            transform *= Matrix4x4.TRS(new Vector3(0f, -pivotValue, 0f), Quaternion.identity, Vector3.one);
            flipKeys = y < 0f;
            return true;
        }