public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
{
MultiPropertyAttribute mAttribute = RetrieveAttributes();
// If the attribute is invisible, regain the standard vertical spacing.
foreach (MultiPropertyAttribute attr in mAttribute.stored)
{
if (!attr.IsVisible(property))
{
return(-EditorGUIUtility.standardVerticalSpacing);
}
}
// In case no attribute returns a modified height, return the property's default one:
float height = base.GetPropertyHeight(property, label);
// Check if any of the attributes wants to modify height:
foreach (object atr in mAttribute.stored)
{
if (atr as MultiPropertyAttribute != null)
{
var tempheight = ((MultiPropertyAttribute)atr).GetPropertyHeight(property, label);
if (tempheight.HasValue)
{
height = tempheight.Value;
break;
}
}
}
return(height);
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
MultiPropertyAttribute mAttribute = RetrieveAttributes();
// Calls to IsVisible. If it returns false for any attribute, the property will not be rendered.
foreach (MultiPropertyAttribute attr in mAttribute.stored)
{
if (!attr.IsVisible(property))
{
return;
}
}
// Calls to OnPreRender before the last attribute draws the UI.
foreach (MultiPropertyAttribute attr in mAttribute.stored)
{
attr.OnPreGUI(position, property);
}
// The last attribute is in charge of actually drawing something:
((MultiPropertyAttribute)mAttribute.stored.Last()).OnGUI(position, property, label);
// Calls to OnPostRender after the last attribute draws the UI. These are called in reverse order.
foreach (MultiPropertyAttribute attr in mAttribute.stored.Reverse())
{
attr.OnPostGUI(position, property);
}
}
private MultiPropertyAttribute RetrieveAttributes()
{
MultiPropertyAttribute mAttribute = attribute as MultiPropertyAttribute;
// Get the attribute list, sorted by "order".
if (mAttribute.stored == null)
{
mAttribute.stored = fieldInfo.GetCustomAttributes(typeof(MultiPropertyAttribute), false).OrderBy(s => ((PropertyAttribute)s).order);
}
return(mAttribute);
}