private static int DropdownList(Rect position, int current, GUIContent[] items)
{
int controlID = GUIUtility.GetControlID(dropdownHash, FocusType.Passive, position);
var mask = DropdownCallbackInfo.GetSelectedValueForControl(controlID, current);
var evt = Event.current;
if (evt.type == EventType.Repaint)
{
if (current >= items.Length || current == -1)
{
EditorStyles.popup.Draw(position, new GUIContent("-"), controlID, false);
}
else
{
EditorStyles.popup.Draw(position, new GUIContent(items[current]), controlID, false);
}
}
else if (evt.type == EventType.MouseDown && position.Contains(evt.mousePosition))
{
DropdownCallbackInfo.instance = new DropdownCallbackInfo(controlID);
GUIUtility.keyboardControl = GUIUtility.hotControl = 0;
evt.Use();
EditorUtility.DisplayCustomMenu(position, items, current,
new EditorUtility.SelectMenuItemFunction(DropdownCallbackInfo.instance.SetMaskValueDelegate), null);
}
return(mask);
}
public static int GetSelectedValueForControl(int controlID, int index)
{
Event current = Event.current;
if (current.type == EventType.ExecuteCommand && current.commandName == kMaskMenuChangedMessage)
{
if (instance == null)
{
Debug.LogError("Mask menu has no instance");
return(index);
}
else if (instance.controlID == controlID)
{
index = instance.selectedIndex;
GUI.changed = true;
instance = null;
GUIUtility.hotControl = GUIUtility.keyboardControl = 0;
current.Use();
}
}
return(index);
}
public static int GetSelectedValueForControl( int controlID, int index )
{
Event current = Event.current;
if ( current.type == EventType.ExecuteCommand && current.commandName == "MaskMenuChanged" ) {
if ( instance == null ) {
Debug.LogError( "Mask menu has no instance" );
return index;
} else if ( instance.controlID == controlID ) {
index = instance.selectedIndex;
GUI.changed = true;
instance = null;
GUIUtility.hotControl = GUIUtility.keyboardControl = 0;
current.Use();
}
}
return index;
}