public void OnPreviewSettings(UnityEngine.Object[] targets)
{
if (ShaderUtil.hardwareSupportsRectRenderTexture)
{
GUI.enabled = true;
this.InitPreview();
bool flag = true;
bool flag2 = true;
bool flag3 = false;
int a = 8;
foreach (Texture texture in targets)
{
a = Mathf.Max(a, TextureUtil.GetMipmapCount(texture));
Cubemap cubemap = texture as Cubemap;
if (cubemap != null)
{
TextureFormat format = cubemap.format;
if (!TextureUtil.IsAlphaOnlyTextureFormat(format))
{
flag2 = false;
}
if (TextureUtil.HasAlphaTextureFormat(format) && (TextureUtil.GetUsageMode(texture) == TextureUsageMode.Default))
{
flag3 = true;
}
}
else
{
flag3 = true;
flag2 = false;
}
}
if (flag2)
{
this.m_PreviewType = PreviewType.Alpha;
flag = false;
}
else if (!flag3)
{
this.m_PreviewType = PreviewType.RGB;
flag = false;
}
if (flag)
{
GUIContent[] contentArray = new GUIContent[] { Styles.RGBIcon, Styles.alphaIcon };
int previewType = (int)this.m_PreviewType;
if (GUILayout.Button(contentArray[previewType], Styles.preButton, new GUILayoutOption[0]))
{
this.m_PreviewType = (PreviewType)(++previewType % contentArray.Length);
}
}
GUI.enabled = a != 1;
GUILayout.Box(Styles.smallZoom, Styles.preLabel, new GUILayoutOption[0]);
GUI.changed = false;
GUILayoutOption[] options = new GUILayoutOption[] { GUILayout.MaxWidth(64f) };
this.m_MipLevel = Mathf.Round(GUILayout.HorizontalSlider(this.m_MipLevel, (float)(a - 1), 0f, Styles.preSlider, Styles.preSliderThumb, options));
GUILayout.Box(Styles.largeZoom, Styles.preLabel, new GUILayoutOption[0]);
GUI.enabled = true;
}
}
