121 lines
4.4 KiB
C#
121 lines
4.4 KiB
C#
using System;
|
|
using UnityEngine;
|
|
using System.Collections.Generic;
|
|
|
|
namespace UnityEditor.Experimental.U2D.Animation
|
|
{
|
|
internal class SpriteSelectorWidget
|
|
{
|
|
class Styles
|
|
{
|
|
public GUIStyle gridListStyle;
|
|
|
|
public Styles()
|
|
{
|
|
gridListStyle = new GUIStyle("GridList");
|
|
gridListStyle.alignment = GUI.skin.button.alignment;
|
|
}
|
|
}
|
|
|
|
Sprite[] m_SpriteList = null;
|
|
Texture2D[] m_SpritePreviews = null;
|
|
List<int> m_SpritePreviewNeedFetching = new List<int>();
|
|
Vector2 m_ScrollPos;
|
|
Styles m_Style;
|
|
const int kTargetPreviewSize = 64;
|
|
public SpriteSelectorWidget()
|
|
{}
|
|
|
|
public void UpdateContents(Sprite[] sprites)
|
|
{
|
|
m_SpriteList = sprites;
|
|
m_SpritePreviews = new Texture2D[sprites.Length];
|
|
for (int i = 0; i < m_SpritePreviews.Length; ++i)
|
|
m_SpritePreviewNeedFetching.Add(i);
|
|
UpdateSpritePreviews();
|
|
}
|
|
|
|
public int ShowGUI(int selectedIndex)
|
|
{
|
|
if (m_Style == null)
|
|
m_Style = new Styles();
|
|
|
|
UpdateSpritePreviews();
|
|
|
|
if (m_SpriteList == null || m_SpriteList.Length == 0)
|
|
return selectedIndex;
|
|
|
|
selectedIndex = (selectedIndex > m_SpriteList.Length) ? 0 : selectedIndex;
|
|
|
|
using (var topRect = new EditorGUILayout.HorizontalScope())
|
|
{
|
|
//GUILayout.Label(Styles.spriteList, EditorStyles.label, new [] {GUILayout.Width(EditorGUIUtility.labelWidth - 5)});
|
|
using (var selectionGridRect = new EditorGUILayout.HorizontalScope("box", new[] {GUILayout.ExpandWidth(true)}))
|
|
{
|
|
{
|
|
float columnF;
|
|
int columnCount, rowCount;
|
|
GetRowColumnCount(EditorGUIUtility.currentViewWidth, kTargetPreviewSize, m_SpriteList.Length, out columnCount, out rowCount, out columnF);
|
|
if (columnCount > 0 && rowCount > 0)
|
|
{
|
|
float contentSize = (columnF * kTargetPreviewSize) / columnCount;
|
|
|
|
if (rowCount >= 2)
|
|
m_ScrollPos = EditorGUILayout.BeginScrollView(m_ScrollPos, GUIStyle.none, GUI.skin.verticalScrollbar, new[] { GUILayout.Height(rowCount > 1 ? contentSize * 2 : contentSize) });
|
|
|
|
m_Style.gridListStyle.fixedWidth = contentSize;
|
|
m_Style.gridListStyle.fixedHeight = contentSize;
|
|
selectedIndex = ContentSelectionGrid(selectedIndex, m_SpriteList, m_Style.gridListStyle, columnCount - 1);
|
|
if (rowCount >= 2)
|
|
EditorGUILayout.EndScrollView();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return selectedIndex;
|
|
}
|
|
|
|
static void GetRowColumnCount(float drawWidth, int size, int contentCount, out int column, out int row, out float columnf)
|
|
{
|
|
columnf = (drawWidth) / size;
|
|
column = (int)columnf;
|
|
if (column == 0)
|
|
row = 0;
|
|
else
|
|
row = (int)Mathf.Ceil((contentCount + column - 1) / column);
|
|
}
|
|
|
|
int ContentSelectionGrid(int selected, Sprite[] contents, GUIStyle style, int columnCount)
|
|
{
|
|
if (contents != null && contents.Length != 0)
|
|
{
|
|
selected = GUILayout.SelectionGrid(selected, m_SpritePreviews, columnCount, style);
|
|
}
|
|
|
|
return selected;
|
|
}
|
|
|
|
public bool NeedUpdatePreview()
|
|
{
|
|
return m_SpritePreviewNeedFetching.Count > 0;
|
|
}
|
|
|
|
void UpdateSpritePreviews()
|
|
{
|
|
for (int i = 0; i < m_SpritePreviewNeedFetching.Count; ++i)
|
|
{
|
|
var index = m_SpritePreviewNeedFetching[i];
|
|
if(m_SpriteList[index] == null)
|
|
m_SpritePreviews[index] = EditorGUIUtility.Load("icons/console.erroricon.png") as Texture2D;
|
|
else
|
|
m_SpritePreviews[index] = AssetPreview.GetAssetPreview(m_SpriteList[index]);
|
|
if (m_SpritePreviews[index] != null)
|
|
{
|
|
m_SpritePreviewNeedFetching.RemoveAt(i);
|
|
--i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|