How to make partially selected EditorGUI.Toggle? [Solved]

I have nested group of toggles created with EditorGUILayout.ToggleLeft().
I want to change state of the parent toggle to partial check if child toggles have mixed states, like here:



But EditorGUILayout.ToggleLeft value is a boolean value, so how can I do that?

 

Hey there,

They don't use a bool value. First off they create an enum

Code (CSharp):

1.         public enum Amount
2.         {
3.             NotSet = -1,
4.             None,
5.             All,
6.             Mixed
7.         }

Then they switched between editor styles based on the int value.

Code (CSharp):

1. {
2.     bool flag = pitem.item.enabled > 0;
3.     GUIStyle style = EditorStyles.toggle;
4.     bool flag2 = pitem.isFolder && pitem.item.enabled == 2;
5.  
6.     if (flag2)
7.     {
8.         style = EditorStyles.toggleMixed;
9.     }
10.  
11.     bool flag3 = GUI.Toggle(toggleRect, flag, GUIContent.none, style);
12.  
13.     if (flag3 != flag)
14.     {
15.             pitem.item.enabled = ((!flag3) ? 0 : 1);
16.     }
17. }

From Unitys PackageImportTreeView.PackageImportTreeViewGUI class

Cheers,

 

Wow, thanks for this info!

However, I can not see EditorStyles.toggleMixed when writing my code
It does exist in PackageImportTreeView.PackageImportTreeViewGUI decompiled class, but IntelliSense does not show it:



I'm using Unity 5.0.2f1.
What did I miss?

 

You are correct I did not look that it was internal. It's no big deal however since you can create styles based on a string value.

Code (CSharp):

1.     isActive = GUILayout.Toggle(isActive, "Toggle", "ToggleMixed");
2.  
3.     //Not well known fact. A GUIStyle can be created from a string.
4.     new GUIStyle("ToggleMixed") == EditorStyles.toggleMixed == "ToggleMixed"

 

Man, you are awesome!
Could not learn such fine things without you. Thanks a lot!

However, this could be done without hacks using EditorGUI.showMixedValue

 

Call me a code hipster