void OnGUI()
{
bool create = false;
bool update = false;
bool replace = false;
string prefabPath = "";
string matPath = "";
// If we have an atlas to work with, see if we can figure out the path for it and its material
if (NGUISettings.atlas != null && NGUISettings.atlas.name == NGUISettings.atlasName)
{
prefabPath = AssetDatabase.GetAssetPath(NGUISettings.atlas.gameObject.GetInstanceID());
if (NGUISettings.atlas.spriteMaterial != null) matPath = AssetDatabase.GetAssetPath(NGUISettings.atlas.spriteMaterial.GetInstanceID());
}
// Assume default values if needed
if (string.IsNullOrEmpty(NGUISettings.atlasName)) NGUISettings.atlasName = "New Atlas";
if (string.IsNullOrEmpty(prefabPath)) prefabPath = NGUIEditorTools.GetSelectionFolder() + NGUISettings.atlasName + ".prefab";
if (string.IsNullOrEmpty(matPath)) matPath = NGUIEditorTools.GetSelectionFolder() + NGUISettings.atlasName + ".mat";
// Try to load the prefab
GameObject go = AssetDatabase.LoadAssetAtPath(prefabPath, typeof(GameObject)) as GameObject;
if (NGUISettings.atlas == null && go != null) NGUISettings.atlas = go.GetComponent<UIAtlas>();
EditorGUIUtility.LookLikeControls(80f);
GUILayout.Space(6f);
GUILayout.BeginHorizontal();
if (go == null)
{
GUI.backgroundColor = Color.green;
create = GUILayout.Button("Create", GUILayout.Width(76f));
}
else
{
GUI.backgroundColor = Color.red;
create = GUILayout.Button("Replace", GUILayout.Width(76f));
}
GUI.backgroundColor = Color.white;
NGUISettings.atlasName = GUILayout.TextField(NGUISettings.atlasName);
GUILayout.EndHorizontal();
if (create)
{
// If the prefab already exists, confirm that we want to overwrite it
if (go == null || EditorUtility.DisplayDialog("Are you sure?", "Are you sure you want to replace the contents of the " +
NGUISettings.atlasName + " atlas with the textures currently selected in the Project View? All other sprites will be deleted.", "Yes", "No"))
{
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("Unlit/Transparent Colored");
mat = new Material(shader);
// Save the material
AssetDatabase.CreateAsset(mat, matPath);
AssetDatabase.Refresh();
// Load the material so it's usable
mat = AssetDatabase.LoadAssetAtPath(matPath, typeof(Material)) as Material;
}
if (NGUISettings.atlas == null || NGUISettings.atlas.name != NGUISettings.atlasName)
{
// Create a new prefab for the atlas
#if UNITY_3_4
Object prefab = (go != null) ? go : EditorUtility.CreateEmptyPrefab(prefabPath);
#else
Object prefab = (go != null) ? go : PrefabUtility.CreateEmptyPrefab(prefabPath);
#endif
// Create a new game object for the atlas
go = new GameObject(NGUISettings.atlasName);
go.AddComponent<UIAtlas>().spriteMaterial = mat;
// Update the prefab
#if UNITY_3_4
EditorUtility.ReplacePrefab(go, prefab);
#else
PrefabUtility.ReplacePrefab(go, prefab);
#endif
DestroyImmediate(go);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
// Select the atlas
go = AssetDatabase.LoadAssetAtPath(prefabPath, typeof(GameObject)) as GameObject;
NGUISettings.atlas = go.GetComponent<UIAtlas>();
}
}
}
ComponentSelector.Draw<UIAtlas>("Select", NGUISettings.atlas, OnSelectAtlas);
List<Texture> textures = GetSelectedTextures();
if (NGUISettings.atlas != null && NGUISettings.atlas.name == NGUISettings.atlasName)
{
Material mat = NGUISettings.atlas.spriteMaterial;
Texture tex = NGUISettings.atlas.texture;
// 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();
NGUISettings.atlasPadding = Mathf.Clamp(EditorGUILayout.IntField("Padding", NGUISettings.atlasPadding, GUILayout.Width(100f)), 0, 8);
GUILayout.Label("in pixels in-between of sprites");
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
NGUISettings.atlasTrimming = EditorGUILayout.Toggle("Trim Alpha", NGUISettings.atlasTrimming, GUILayout.Width(100f));
GUILayout.Label("Remove empty space");
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
NGUISettings.unityPacking = EditorGUILayout.Toggle("Unity Packer", NGUISettings.unityPacking, GUILayout.Width(100f));
GUILayout.Label("if off, use a custom packer");
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.EndHorizontal();
}
if (textures.Count > 0)
{
GUI.backgroundColor = Color.green;
update = GUILayout.Button("Add/Update All");
GUI.backgroundColor = Color.white;
}
else
{
NGUIEditorTools.DrawSeparator();
GUILayout.Label("You can reveal more options by selecting\none or more textures in the Project View\nwindow.");
}
}
else
{
NGUIEditorTools.DrawSeparator();
GUILayout.Label("You can create a new atlas by selecting\none or more textures in the Project View\nwindow, then clicking \"Create\".");
}
Dictionary<string, int> spriteList = GetSpriteList(textures);
if (spriteList.Count > 0)
{
NGUIEditorTools.DrawHeader("Sprites");
GUILayout.Space(-7f);
mScroll = GUILayout.BeginScrollView(mScroll);
bool delete = false;
int index = 0;
foreach (KeyValuePair<string, int> iter in spriteList)
{
++index;
NGUIEditorTools.HighlightLine(new Color(0.6f, 0.6f, 0.6f));
GUILayout.BeginHorizontal();
GUILayout.Label(index.ToString(), GUILayout.Width(24f));
GUILayout.Label(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();
// 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.tex.name))
{
sprites.RemoveAt(i);
}
}
UpdateAtlas(NGUISettings.atlas, sprites);
mDelNames.Clear();
}
else if (update) UpdateAtlas(textures, true);
else if (replace) UpdateAtlas(textures, false);
return;
}
}
