/// <summary>
/// Extract sprites from the atlas, adding them to the list.
/// </summary>
static public void ExtractSprites(UIAtlas atlas, List <SpriteEntry> finalSprites)
{
ShowProgress(0f);
TextureAlphaSpliter.UseRgbaTex(atlas);
// Make the atlas texture readable
Texture2D tex = NGUIEditorTools.ImportTexture(atlas.texture, true, true, false);
if (tex != null)
{
Color32[] pixels = null;
int width = tex.width;
int height = tex.height;
List <UISpriteData> sprites = atlas.spriteList;
float count = sprites.Count;
int index = 0;
foreach (UISpriteData es in sprites)
{
ShowProgress((index++) / count);
bool found = false;
foreach (SpriteEntry fs in finalSprites)
{
if (es.name == fs.name)
{
fs.CopyBorderFrom(es);
found = true;
break;
}
}
if (!found)
{
if (pixels == null)
{
pixels = tex.GetPixels32();
}
SpriteEntry sprite = ExtractSprite(es, pixels, width, height);
if (sprite != null)
{
finalSprites.Add(sprite);
}
}
}
}
// The atlas no longer needs to be readable
NGUIEditorTools.ImportTexture(atlas.texture, false, false, !atlas.premultipliedAlpha);
ShowProgress(1f);
}
/// <summary>
/// Update the sprite atlas, keeping only the sprites that are on the specified list.
/// </summary>
static public void UpdateAtlas(UIAtlas atlas, List <SpriteEntry> sprites)
{
if (sprites.Count > 0)
{
// Combine all sprites into a single texture and save it
if (UpdateTexture(atlas, sprites))
{
// Replace the sprites within the atlas
ReplaceSprites(atlas, sprites);
}
// Release the temporary textures
ReleaseSprites(sprites);
EditorUtility.ClearProgressBar();
//process through seperating rgb and a
Texture rgb, alpha;
TextureAlphaSpliter.SplitAlpha(atlas.texture, false, out rgb, out alpha);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
Debug.Log("分离为rgb+alpha 贴图");
//update mat
var rgba = atlas.texture;
var mat = atlas.spriteMaterial;
mat.shader = Shader.Find("Unlit/Transparent Colored Alpha");
mat.SetTexture("_AlphaTex", alpha);
mat.SetTexture("_MainTex", rgb);
Debug.Log("重设material");
//save src pic
var src = AssetDatabase.GetAssetPath(rgba);
TextureAlphaSpliter.SaveUIRgbaTexture(src);
Debug.Log("保存rgba");
AssetDatabase.SaveAssets();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
return;
}
else
{
atlas.spriteList.Clear();
string path = NGUIEditorTools.GetSaveableTexturePath(atlas);
atlas.spriteMaterial.mainTexture = null;
if (!string.IsNullOrEmpty(path))
{
AssetDatabase.DeleteAsset(path);
}
}
atlas.MarkAsChanged();
Selection.activeGameObject = (NGUISettings.atlas != null) ? NGUISettings.atlas.gameObject : null;
EditorUtility.ClearProgressBar();
}
void OnGUI()
{
if (mLastAtlas != NGUISettings.atlas)
{
mLastAtlas = NGUISettings.atlas;
}
bool update = false;
bool replace = false;
NGUIEditorTools.SetLabelWidth(84f);
GUILayout.Space(3f);
NGUIEditorTools.DrawHeader("Input", true);
NGUIEditorTools.BeginContents(false);
GUILayout.BeginHorizontal();
{
ComponentSelector.Draw <UIAtlas>("Atlas", NGUISettings.atlas, OnSelectAtlas, true, GUILayout.MinWidth(80f));
EditorGUI.BeginDisabledGroup(NGUISettings.atlas == null);
if (GUILayout.Button("New", GUILayout.Width(40f)))
{
NGUISettings.atlas = null;
}
EditorGUI.EndDisabledGroup();
}
GUILayout.EndHorizontal();
List <Texture> textures = GetSelectedTextures();
if (NGUISettings.atlas != null)
{
Material mat = NGUISettings.atlas.spriteMaterial;
Texture tex = NGUISettings.atlas.texture;
if (cachedRgba == null || (tex != null && !tex.name.Contains(cachedRgba.name)))
{
cachedRgba = TextureAlphaSpliter.GetUIRgbaTex(tex);
}
// Material information
GUILayout.BeginHorizontal();
{
if (mat != null)
{
if (GUILayout.Button("Material", GUILayout.Width(76f)))
{
Selection.activeObject = mat;
}
GUILayout.Label(" " + mat.name);
}
else
{
GUI.color = Color.grey;
GUILayout.Button("Material", GUILayout.Width(76f));
GUI.color = Color.white;
GUILayout.Label(" N/A");
}
}
GUILayout.EndHorizontal();
// Texture atlas information
GUILayout.BeginHorizontal();
{
if (tex != null)
{
if (GUILayout.Button("Texture", GUILayout.Width(76f)))
{
Selection.activeObject = tex;
}
GUILayout.Label(" " + tex.width + "x" + tex.height);
}
else
{
GUI.color = Color.grey;
GUILayout.Button("Texture", GUILayout.Width(76f));
GUI.color = Color.white;
GUILayout.Label(" N/A");
}
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
if (cachedRgba != null)
{
if (GUILayout.Button("原图", GUILayout.Width(76f)))
{
Selection.activeObject = cachedRgba;
}
GUILayout.Label(" " + cachedRgba.width + "x" + cachedRgba.height);
}
GUILayout.EndHorizontal();
}
GUILayout.BeginHorizontal();
NGUISettings.atlasPadding = Mathf.Clamp(EditorGUILayout.IntField("Padding", NGUISettings.atlasPadding, GUILayout.Width(100f)), 0, 8);
GUILayout.Label((NGUISettings.atlasPadding == 1 ? "pixel" : "pixels") + " between sprites");
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
NGUISettings.atlasTrimming = EditorGUILayout.Toggle("Trim Alpha", NGUISettings.atlasTrimming, GUILayout.Width(100f));
GUILayout.Label("Remove empty space");
GUILayout.EndHorizontal();
bool fixedShader = false;
if (NGUISettings.atlas != null)
{
Material mat = NGUISettings.atlas.spriteMaterial;
if (mat != null)
{
Shader shader = mat.shader;
if (shader != null)
{
if (shader.name == "Unlit/Transparent Colored")
{
NGUISettings.atlasPMA = false;
fixedShader = true;
}
else if (shader.name == "Unlit/Premultiplied Colored")
{
NGUISettings.atlasPMA = true;
fixedShader = true;
}
}
}
}
if (!fixedShader)
{
GUILayout.BeginHorizontal();
NGUISettings.atlasPMA = EditorGUILayout.Toggle("PMA Shader", NGUISettings.atlasPMA, GUILayout.Width(100f));
GUILayout.Label("Pre-multiplied alpha", GUILayout.MinWidth(70f));
GUILayout.EndHorizontal();
}
//GUILayout.BeginHorizontal();
//NGUISettings.keepPadding = EditorGUILayout.Toggle("Keep Padding", NGUISettings.keepPadding, GUILayout.Width(100f));
//GUILayout.Label("or replace with trimmed pixels", GUILayout.MinWidth(70f));
//GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
NGUISettings.unityPacking = EditorGUILayout.Toggle("Unity Packer", NGUISettings.unityPacking, GUILayout.Width(100f));
GUILayout.Label("or custom packer", GUILayout.MinWidth(70f));
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
NGUISettings.trueColorAtlas = EditorGUILayout.Toggle("Truecolor", NGUISettings.trueColorAtlas, GUILayout.Width(100f));
GUILayout.Label("force ARGB32 textures", GUILayout.MinWidth(70f));
GUILayout.EndHorizontal();
if (!NGUISettings.unityPacking)
{
GUILayout.BeginHorizontal();
NGUISettings.forceSquareAtlas = EditorGUILayout.Toggle("Force Square", NGUISettings.forceSquareAtlas, GUILayout.Width(100f));
GUILayout.Label("if on, forces a square atlas texture", GUILayout.MinWidth(70f));
GUILayout.EndHorizontal();
}
#if UNITY_IPHONE || UNITY_ANDROID
GUILayout.BeginHorizontal();
NGUISettings.allow4096 = EditorGUILayout.Toggle("4096x4096", NGUISettings.allow4096, GUILayout.Width(100f));
GUILayout.Label("if off, limit atlases to 2048x2048");
GUILayout.EndHorizontal();
#endif
NGUIEditorTools.EndContents();
if (NGUISettings.atlas != null)
{
GUILayout.BeginHorizontal();
GUILayout.Space(20f);
if (textures.Count > 0)
{
update = GUILayout.Button("Add/Update");
}
else if (GUILayout.Button("View Sprites"))
{
SpriteSelector.ShowSelected();
}
GUILayout.Space(20f);
GUILayout.EndHorizontal();
}
else
{
EditorGUILayout.HelpBox("You can create a new atlas by selecting one or more textures in the Project View window, then clicking \"Create\".", MessageType.Info);
EditorGUI.BeginDisabledGroup(textures.Count == 0);
GUILayout.BeginHorizontal();
GUILayout.Space(20f);
bool create = GUILayout.Button("Create");
GUILayout.Space(20f);
GUILayout.EndHorizontal();
EditorGUI.EndDisabledGroup();
if (create)
{
string path = EditorUtility.SaveFilePanelInProject("Save As",
"New Atlas.prefab", "prefab", "Save atlas as...", NGUISettings.currentPath);
if (!string.IsNullOrEmpty(path))
{
NGUISettings.currentPath = System.IO.Path.GetDirectoryName(path);
GameObject go = AssetDatabase.LoadAssetAtPath(path, typeof(GameObject)) as GameObject;
string matPath = path.Replace(".prefab", ".mat");
replace = true;
// Try to load the material
Material mat = AssetDatabase.LoadAssetAtPath(matPath, typeof(Material)) as Material;
// If the material doesn't exist, create it
if (mat == null)
{
Shader shader = Shader.Find(NGUISettings.atlasPMA ? "Unlit/Premultiplied Colored" : "Unlit/Transparent Colored");
mat = new Material(shader);
// Save the material
AssetDatabase.CreateAsset(mat, matPath);
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
// Load the material so it's usable
mat = AssetDatabase.LoadAssetAtPath(matPath, typeof(Material)) as Material;
}
// Create a new prefab for the atlas
Object prefab = (go != null) ? go : PrefabUtility.CreateEmptyPrefab(path);
// Create a new game object for the atlas
string atlasName = path.Replace(".prefab", "");
atlasName = atlasName.Substring(path.LastIndexOfAny(new char[] { '/', '\\' }) + 1);
go = new GameObject(atlasName);
go.AddComponent <UIAtlas>().spriteMaterial = mat;
// Update the prefab
PrefabUtility.ReplacePrefab(go, prefab);
DestroyImmediate(go);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
// Select the atlas
go = AssetDatabase.LoadAssetAtPath(path, typeof(GameObject)) as GameObject;
NGUISettings.atlas = go.GetComponent <UIAtlas>();
Selection.activeGameObject = go;
}
}
}
string selection = null;
Dictionary <string, int> spriteList = GetSpriteList(textures);
if (spriteList.Count > 0)
{
NGUIEditorTools.DrawHeader("Sprites", true);
{
GUILayout.BeginHorizontal();
GUILayout.Space(3f);
GUILayout.BeginVertical();
mScroll = GUILayout.BeginScrollView(mScroll);
bool delete = false;
int index = 0;
foreach (KeyValuePair <string, int> iter in spriteList)
{
++index;
GUILayout.Space(-1f);
bool highlight = (UIAtlasInspector.instance != null) && (NGUISettings.selectedSprite == iter.Key);
GUI.backgroundColor = highlight ? Color.white : new Color(0.8f, 0.8f, 0.8f);
GUILayout.BeginHorizontal("AS TextArea", GUILayout.MinHeight(20f));
GUI.backgroundColor = Color.white;
GUILayout.Label(index.ToString(), GUILayout.Width(24f));
if (GUILayout.Button(iter.Key, "OL TextField", GUILayout.Height(20f)))
{
selection = iter.Key;
}
if (iter.Value == 2)
{
GUI.color = Color.green;
GUILayout.Label("Add", GUILayout.Width(27f));
GUI.color = Color.white;
}
else if (iter.Value == 1)
{
GUI.color = Color.cyan;
GUILayout.Label("Update", GUILayout.Width(45f));
GUI.color = Color.white;
}
else
{
if (mDelNames.Contains(iter.Key))
{
GUI.backgroundColor = Color.red;
if (GUILayout.Button("Delete", GUILayout.Width(60f)))
{
delete = true;
}
GUI.backgroundColor = Color.green;
if (GUILayout.Button("X", GUILayout.Width(22f)))
{
mDelNames.Remove(iter.Key);
delete = false;
}
GUI.backgroundColor = Color.white;
}
else
{
// If we have not yet selected a sprite for deletion, show a small "X" button
if (GUILayout.Button("X", GUILayout.Width(22f)))
{
mDelNames.Add(iter.Key);
}
}
}
GUILayout.EndHorizontal();
}
GUILayout.EndScrollView();
GUILayout.EndVertical();
GUILayout.Space(3f);
GUILayout.EndHorizontal();
// If this sprite was marked for deletion, remove it from the atlas
if (delete)
{
List <SpriteEntry> sprites = new List <SpriteEntry>();
ExtractSprites(NGUISettings.atlas, sprites);
for (int i = sprites.Count; i > 0;)
{
SpriteEntry ent = sprites[--i];
if (mDelNames.Contains(ent.name))
{
sprites.RemoveAt(i);
}
}
UpdateAtlas(NGUISettings.atlas, sprites);
mDelNames.Clear();
NGUIEditorTools.RepaintSprites();
}
else if (update)
{
UpdateAtlas(textures, true);
}
else if (replace)
{
UpdateAtlas(textures, false);
}
if (NGUISettings.atlas != null && !string.IsNullOrEmpty(selection))
{
NGUIEditorTools.SelectSprite(selection);
}
else if (update || replace)
{
NGUIEditorTools.UpgradeTexturesToSprites(NGUISettings.atlas);
NGUIEditorTools.RepaintSprites();
}
}
}
if (NGUISettings.atlas != null && textures.Count == 0)
{
EditorGUILayout.HelpBox("You can reveal more options by selecting one or more textures in the Project View window.", MessageType.Info);
}
// Uncomment this line if you want to be able to force-sort the atlas
//if (NGUISettings.atlas != null && GUILayout.Button("Sort Alphabetically")) NGUISettings.atlas.SortAlphabetically();
}
/// <summary>
/// Combine all sprites into a single texture and save it to disk.
/// </summary>
static public bool UpdateTexture(UIAtlas atlas, List <SpriteEntry> sprites)
{
// Get the texture for the atlas
Texture2D tex = atlas.texture as Texture2D;
bool success = TextureAlphaSpliter.UseRgbaTex(atlas);
if (success)
{
tex = atlas.texture as Texture2D;
}
//bool isRGB = tex != null && tex.name.Contains("(rgb)");
//if (isRGB)
//{
// var srcTex = TextureAlphaSpliter.GetUIRgbaTex(tex);
// if (srcTex != null) {
// tex = srcTex;
// atlas.spriteMaterial.SetTexture("_MainTex", tex);
// }
// else
// {
// Debug.LogErrorFormat("找不到图集={0}的原图(rgba)", atlas.name);
// }
//}
string oldPath = (tex != null) ? AssetDatabase.GetAssetPath(tex.GetInstanceID()) : "";
string newPath = NGUIEditorTools.GetSaveableTexturePath(atlas);
// Clear the read-only flag in texture file attributes
if (System.IO.File.Exists(newPath))
{
#if !UNITY_4_1 && !UNITY_4_0 && !UNITY_3_5
if (!AssetDatabase.IsOpenForEdit(newPath))
{
Debug.LogError(newPath + " is not editable. Did you forget to do a check out?");
return(false);
}
#endif
System.IO.FileAttributes newPathAttrs = System.IO.File.GetAttributes(newPath);
newPathAttrs &= ~System.IO.FileAttributes.ReadOnly;
System.IO.File.SetAttributes(newPath, newPathAttrs);
}
bool newTexture = (tex == null || oldPath != newPath);
if (newTexture)
{
// Create a new texture for the atlas
tex = new Texture2D(1, 1, TextureFormat.ARGB32, false);
}
else
{
// Make the atlas readable so we can save it
tex = NGUIEditorTools.ImportTexture(oldPath, true, false, false);
}
// Pack the sprites into this texture
if (PackTextures(tex, sprites))
{
byte[] bytes = tex.EncodeToPNG();
System.IO.File.WriteAllBytes(newPath, bytes);
bytes = null;
// Load the texture we just saved as a Texture2D
AssetDatabase.SaveAssets();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
tex = NGUIEditorTools.ImportTexture(newPath, false, true, !atlas.premultipliedAlpha);
// Update the atlas texture
if (newTexture)
{
if (tex == null)
{
Debug.LogError("Failed to load the created atlas saved as " + newPath);
}
else
{
atlas.spriteMaterial.mainTexture = tex;
}
ReleaseSprites(sprites);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
}
return(true);
}
else
{
if (!newTexture)
{
NGUIEditorTools.ImportTexture(oldPath, false, true, !atlas.premultipliedAlpha);
}
//Debug.LogError("Operation canceled: The selected sprites can't fit into the atlas.\n" +
// "Keep large sprites outside the atlas (use UITexture), and/or use multiple atlases instead.");
EditorUtility.DisplayDialog("Operation Canceled", "The selected sprites can't fit into the atlas.\n" +
"Keep large sprites outside the atlas (use UITexture), and/or use multiple atlases instead", "OK");
return(false);
}
}
