public static Uni2DTextureAtlas AtlasPopup(Uni2DTextureAtlas a_rTextureAtlas, IEnumerable <string> a_rTextureGUIDs, params GUILayoutOption[] a_rGUILayoutOptions)
{
// Get button control ID
int iControlID = GUIUtility.GetControlID(FocusType.Passive);
// Get selected value for our control
// If no PopupCallbackInfo instance exists, the returned value is a_rTextureAtlas
a_rTextureAtlas = PopupCallbackInfo <Uni2DTextureAtlas> .GetSelectedValueForControl(iControlID, a_rTextureAtlas);
// Create a new generic menu
// Each item menu will use AtlasPopupCallback as callback
// AtlasPopupCallback will perform the logic and save the selected atlas to
// the PopupCallbackInfo instance.
string oPopupSelected = EditorGUI.showMixedValue ? "-" : (a_rTextureAtlas != null ? a_rTextureAtlas.name : "(None)");
if (GUILayout.Button(oPopupSelected, EditorStyles.popup, a_rGUILayoutOptions))
{
string rAtlasGUID = Uni2DEditorUtils.GetUnityAssetGUID(a_rTextureAtlas);
// Create a new popup callback info (control ID) and save it as current instance
PopupCallbackInfo <Uni2DTextureAtlas> .instance = new PopupCallbackInfo <Uni2DTextureAtlas>(iControlID, a_rTextureAtlas);
// Create our generic menu
GenericMenu oPopupMenu = new GenericMenu( );
if (a_rTextureAtlas != null)
{
oPopupMenu.AddItem(new GUIContent(a_rTextureAtlas.name), true, AtlasPopupCallback, rAtlasGUID);
oPopupMenu.AddSeparator("");
}
// "None" special item menu
oPopupMenu.AddItem(new GUIContent("(None)", "No atlasing"), a_rTextureAtlas == null, AtlasPopupCallback, "");
oPopupMenu.AddSeparator("");
// "Create" special item menu
oPopupMenu.AddItem(new GUIContent("Create a new atlas...", "Creates a new Uni2D atlas and add the texture(s) right away"), false, AtlasPopupCallback, "NEW");
Uni2DEditorAssetTable rAssetTable = Uni2DEditorAssetTable.Instance;
// List atlases containing the texture(s)
Dictionary <string, string> oAtlasesReadyToUse = rAssetTable.GetAtlasNamesUsingTheseTextures(a_rTextureGUIDs);
if (!string.IsNullOrEmpty(rAtlasGUID))
{
oAtlasesReadyToUse.Remove(rAtlasGUID);
}
if (oAtlasesReadyToUse.Count > 0)
{
oPopupMenu.AddSeparator("");
// Add an item menu for each ready to use atlas
foreach (KeyValuePair <string, string> rAtlasNameGUIDPair in oAtlasesReadyToUse)
{
oPopupMenu.AddItem(new GUIContent(rAtlasNameGUIDPair.Value), rAtlasNameGUIDPair.Key == rAtlasGUID, AtlasPopupCallback, rAtlasNameGUIDPair.Key);
}
}
// List all available atlases
Dictionary <string, string> oAvailableAtlases = rAssetTable.GetAllAtlasNames( );
if (oAvailableAtlases.Count > 0)
{
oPopupMenu.AddSeparator("");
// Add an item menu for each available atlas, in a submenu
foreach (KeyValuePair <string, string> rAtlasNameGUIDPair in oAvailableAtlases)
{
oPopupMenu.AddItem(new GUIContent("All atlases/" + rAtlasNameGUIDPair.Value), rAtlasNameGUIDPair.Key == rAtlasGUID, AtlasPopupCallback, rAtlasNameGUIDPair.Key);
}
}
// Finally show up the menu
oPopupMenu.ShowAsContext( );
}
return(a_rTextureAtlas);
}