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#if !UNITY_2019_1_OR_NEWER
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
namespace AmplifyShaderEditor
{
[CustomEditor( typeof( Texture2DArray ) )]
public class CustomTexture2DArrayInspector : Editor
{
Texture2DArray m_target;
[SerializeField]
float m_index;
Shader m_textureArrayPreview;
Material m_previewMaterial;
GUIStyle slider = null;
GUIStyle thumb = null;
GUIContent m_allButton = null;
[SerializeField]
bool m_seeAll;
void OnEnable()
{
m_target = ( target as Texture2DArray );
m_textureArrayPreview = AssetDatabase.LoadAssetAtPath<Shader>( AssetDatabase.GUIDToAssetPath( "610c24aad350fba4583068c6c22fa428" ) );
m_previewMaterial = new Material( m_textureArrayPreview );
slider = null;
thumb = null;
}
public override void OnPreviewGUI( Rect r, GUIStyle background )
{
base.OnPreviewGUI( r, background );
m_previewMaterial.SetTexture( "_MainTex", m_target );
m_previewMaterial.SetFloat( "_Index", m_index );
EditorGUI.DrawPreviewTexture( r, m_target, m_previewMaterial, ScaleMode.ScaleToFit, 1f );
}
private void OnDisable()
{
DestroyImmediate( m_previewMaterial );
m_previewMaterial = null;
}
public override void OnInspectorGUI()
{
if( slider == null )
slider = "preSlider";
if( thumb == null )
thumb = "preSliderThumb";
if( m_allButton == null )
m_allButton = EditorGUIUtility.IconContent( "PreTextureMipMapLow" );
base.OnInspectorGUI();
}
public override bool HasPreviewGUI()
{
return true;
}
public override void OnPreviewSettings()
{
base.OnPreviewSettings();
m_seeAll = GUILayout.Toggle( m_seeAll, m_allButton, "preButton" );
EditorGUI.BeginDisabledGroup( m_seeAll );
m_index = Mathf.Round( GUILayout.HorizontalSlider( m_index, 0, m_target.depth - 1, slider, thumb ) );
EditorGUI.EndDisabledGroup();
}
public override void OnInteractivePreviewGUI( Rect r, GUIStyle background )
{
//base.OnInteractivePreviewGUI( r, background );
if( m_seeAll )
{
int columns = Mathf.CeilToInt( Mathf.Sqrt( m_target.depth ) );
float sizeX = r.width / columns - 20;
float centerY = ( columns * columns ) - m_target.depth;
int rows = columns;
if( centerY >= columns )
rows--;
float sizeY = ( r.height - 16 ) / rows - 15;
if( centerY >= columns )
centerY = sizeY * 0.5f;
else
centerY = 0;
Rect smallRect = r;
if( rows > 1 )
smallRect.y += ( 15 / ( rows - 1 ) );
else
smallRect.y += 15;
smallRect.x = r.x + 10;
smallRect.width = sizeX;
smallRect.height = sizeY;
for( int i = 0; i < m_target.depth; i++ )
{
m_previewMaterial.SetTexture( "_MainTex", m_target );
m_previewMaterial.SetFloat( "_Index", i );
EditorGUI.DrawPreviewTexture( smallRect, m_target, m_previewMaterial, ScaleMode.ScaleToFit, 1 );
Rect dropRect = smallRect;
float diff = smallRect.height - smallRect.width;
if( diff > 0 )
dropRect.y -= diff * 0.5f;
dropRect.y += 16;
EditorGUI.DropShadowLabel( dropRect, "[" + i + "]" );
smallRect.x += sizeX + 20;
if( ( ( i + 1 ) % ( columns ) ) == 0 )
{
smallRect.x = r.x + 10;
smallRect.height = sizeY;
smallRect.y += sizeY + 30;
}
}
}
else
{
m_previewMaterial.SetTexture( "_MainTex", m_target );
m_previewMaterial.SetFloat( "_Index", m_index );
EditorGUI.DrawPreviewTexture( r, m_target, m_previewMaterial, ScaleMode.ScaleToFit, 1f );
EditorGUI.DropShadowLabel( r, "[" + m_index + "]" );
}
}
}
}
#endif
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