/// <summary>
/// 通过name转换颜色
/// </summary>
/// <param name="chartName"></param>
public void SwapColors(string chartName)
{
if (string.IsNullOrEmpty(chartName) || mainTexture == null || srcChart == null || swapCharts == null)
{
return;
}
// 如果是源颜色组的name，清除颜色，否则转换
if (chartName == srcChart.name)
{
ClearSwapColors();
}
else
{
ColorChart chart = swapCharts.Find(c => c.name == chartName);
if (chart != null)
{
Texture2D swapTexture;
if (chart.TryGetSwapTexture(mainTexture, srcChart, out swapTexture))
{
SetMaterialPropertyBlockTexture(swapTexture);
}
}
}
}
private void OnGUI()
{
// 设置src与swap
src = EditorGUILayout.ObjectField("Source Chart", src, typeof(ColorChart), false) as ColorChart;
swap = EditorGUILayout.ObjectField("Swap Chart", swap, typeof(ColorChart), false) as ColorChart;
if (src == null || swap == null)
{
EditorGUILayout.HelpBox("Please select source chart and swap chart.", MessageType.Info);
return;
}
// 设置Color的数量
EditorGUI.BeginChangeCheck();
int count = Mathf.Max(0, EditorGUILayout.DelayedIntField("Color Count", src.count));
if (EditorGUI.EndChangeCheck() && src.count != count)
{
src.count = count;
EditorUtility.SetDirty(src);
}
if (swap.count != src.count)
{
int swapCount = swap.count;
swap.count = src.count;
if (swapCount < src.count)
{
ColorChart.CopyColors(src, swapCount, swap, swapCount, src.count - swapCount);
}
EditorUtility.SetDirty(swap);
}
EditorGUILayout.Space();
// 设置颜色
EditorGUI.BeginChangeCheck();
m_Scroll = EditorGUILayout.BeginScrollView(m_Scroll, "box");
{
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Index", GUILayout.MaxWidth(50));
EditorGUILayout.LabelField("Source Chart", GUILayout.MaxWidth(150));
EditorGUILayout.LabelField("Swap Chart", GUILayout.MaxWidth(150));
EditorGUILayout.EndHorizontal();
for (int i = 0; i < count; i++)
{
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField(i.ToString(), GUILayout.MaxWidth(50));
src[i] = EditorGUILayout.ColorField(src[i], GUILayout.MaxWidth(150));
swap[i] = EditorGUILayout.ColorField(swap[i], GUILayout.MaxWidth(150));
EditorGUILayout.EndHorizontal();
}
}
EditorGUILayout.EndScrollView();
if (EditorGUI.EndChangeCheck())
{
EditorUtility.SetDirty(src);
EditorUtility.SetDirty(swap);
}
}
/// <summary>
/// 获取转换后的Texture2D
/// </summary>
/// <param name="srcTexture"></param>
/// <param name="srcChart"></param>
/// <returns></returns>
public Texture2D GetSwapTexture(Texture2D srcTexture, ColorChart srcChart)
{
Texture2D swapTexture;
if (!TryGetSwapTexture(srcTexture, srcChart, out swapTexture))
{
return(null);
}
return(swapTexture);
}
/// <summary>
/// 尝试获取转换后的Texture2D
/// </summary>
/// <param name="srcTexture"></param>
/// <param name="srcChart"></param>
/// <param name="swappingTexture"></param>
/// <returns></returns>
public bool TryGetSwapTexture(Texture2D srcTexture, ColorChart srcChart, out Texture2D swapTexture)
{
swapTexture = null;
if (srcTexture == null || srcChart == null)
{
return(false);
}
// 动态创建没有命名，或动态把名称更改成了空。
if (string.IsNullOrEmpty(name) || string.IsNullOrEmpty(srcTexture.name))
{
Debug.LogError("Name of SwapChart or Name of SrcTexture is null or empty.");
return(false);
}
// 尝试获取缓存Texture2D
if (SwapTextureCache.TryGetTexture2D(name, srcTexture.name, out swapTexture))
{
return(true);
}
// 获取源图所有颜色，并转换颜色
Color[] colors = srcTexture.GetPixels();
for (int i = 0; i < colors.Length; i++)
{
if (colors[i].a != 0)
{
colors[i] = GetSwapColor(colors[i], srcChart);
}
}
// 和源相同的设置创建Texture2D
Texture2D clone = new Texture2D(srcTexture.width, srcTexture.height)
{
alphaIsTransparency = srcTexture.alphaIsTransparency,
wrapMode = srcTexture.wrapMode,
filterMode = srcTexture.filterMode,
};
// 填充转换后的颜色，并保存
clone.SetPixels(colors);
clone.Apply();
/// 如果加入缓存失败，销毁swapTexture，
/// 重新尝试获取，
/// 异步执行有极小的可能发生。
if (!SwapTextureCache.AddTexture2D(name, srcTexture.name, clone))
{
Texture2D.Destroy(clone);
return(TryGetSwapTexture(srcTexture, srcChart, out swapTexture));
}
swapTexture = clone;
return(true);
}
/// <summary>
/// 获取在本表中的对应位置的颜色，如果没有找到，返回原颜色
/// </summary>
/// <param name="color"></param>
/// <param name="srcChart"></param>
/// <returns></returns>
public Color GetSwapColor(Color color, ColorChart srcChart)
{
if (srcChart == null)
{
return(color);
}
int index = srcChart.IndexOf(color);
if (index == -1 || index >= m_Colors.Length)
{
return(color);
}
return(m_Colors[index]);
}
/// <summary>
/// 从Texture中读取颜色
/// </summary>
/// <param name="chart"></param>
/// <param name="texture"></param>
/// <returns></returns>
public static bool LoadColorsFromTexture(ColorChart chart, Texture2D texture)
{
if (chart == null || texture == null)
{
return(false);
}
Color[] colors = texture.GetPixels();
List <Color> list = new List <Color>();
for (int i = 0; i < colors.Length; i++)
{
if (colors[i].a != 0 && !list.Contains(colors[i]))
{
list.Add(colors[i]);
}
}
chart.m_Colors = list.ToArray();
return(true);
}
/// <summary>
/// 克隆一个颜色表
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public virtual T Clone <T>(string newName) where T : ColorChart
{
if (string.IsNullOrEmpty(newName))
{
Debug.LogError("Name can not be null or empty.");
return(null);
}
if (newName == name)
{
Debug.LogError("Duplicated Name!");
return(null);
}
T clone = ColorChart.CreateInstance <T>();
clone.name = newName;
clone.SetColors(m_Colors);
return(clone);
}
public override void OnInspectorGUI()
{
DrawDefaultInspector();
EditorGUILayout.Space();
if (GUILayout.Button("Load Colors From Texture"))
{
string path = EditorUtility.OpenFilePanelWithFilters("Create Chart", "Assets", new string[] { "PNG Image", "png", "JPG Image", "jpg", "GIF Image", "gif" });
if (!string.IsNullOrEmpty(path) && path.Contains(Application.dataPath))
{
path = path.Replace(Application.dataPath, "Assets");
Texture2D texture = AssetDatabase.LoadAssetAtPath <Texture2D>(path);
ColorChart.LoadColorsFromTexture(chart, texture);
}
}
if (GUILayout.Button("Open Edit Window"))
{
ColorChartEditorWindow window = ColorChartEditorWindow.OpenColorChartEditorWindow();
window.src = chart;
}
}
/// <summary>
/// 复制颜色
/// </summary>
/// <param name="src"></param>
/// <param name="srcIndex"></param>
/// <param name="dst"></param>
/// <param name="dstIndex"></param>
/// <param name="length"></param>
public static void CopyColors(ColorChart src, int srcIndex, ColorChart dst, int dstIndex, int length)
{
Array.Copy(src.m_Colors, srcIndex, dst.m_Colors, dstIndex, length);
}