UnityEditor.SpriteUtilityWindow.DoAlphaZoomToolbarGUI C# (CSharp) Method

        protected void DoAlphaZoomToolbarGUI()
        {
            this.m_ShowAlpha = GUILayout.Toggle(this.m_ShowAlpha, !this.m_ShowAlpha ? s_Styles.RGBIcon : s_Styles.alphaIcon, "toolbarButton", new GUILayoutOption[0]);
            GUILayoutOption[] options = new GUILayoutOption[] { GUILayout.MaxWidth(64f) };
            this.m_Zoom = GUILayout.HorizontalSlider(this.m_Zoom, this.GetMinZoom(), 50f, s_Styles.preSlider, s_Styles.preSliderThumb, options);
            int a = 1;
            if (this.m_Texture != null)
            {
                a = Mathf.Max(a, TextureUtil.CountMipmaps(this.m_Texture));
            }
            EditorGUI.BeginDisabledGroup(a == 1);
            GUILayout.Box(s_Styles.smallMip, s_Styles.preLabel, new GUILayoutOption[0]);
            GUILayoutOption[] optionArray2 = new GUILayoutOption[] { GUILayout.MaxWidth(64f) };
            this.m_MipLevel = Mathf.Round(GUILayout.HorizontalSlider(this.m_MipLevel, (float) (a - 1), 0f, s_Styles.preSlider, s_Styles.preSliderThumb, optionArray2));
            GUILayout.Box(s_Styles.largeMip, s_Styles.preLabel, new GUILayoutOption[0]);
            EditorGUI.EndDisabledGroup();
        }