public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
{
ShowIfAttribute showIfAttr = (ShowIfAttribute)attribute;
bool enabled = GetShowIfAttributeResult(showIfAttr, property);
if (!showIfAttr.ShouldShow || enabled)
{
return(EditorGUI.GetPropertyHeight(property, label));
}
else
{
//The property is not being drawn
//We want to undo the spacing added before and after the property
return(-EditorGUIUtility.standardVerticalSpacing);
}
}
private bool GetShowIfAttributeResult(ShowIfAttribute showIfAttr, SerializedProperty property)
{
bool enabled = true;
//Look for the sourcefield within the object that the property belongs to
string propertyPath = property.propertyPath; //returns the property path of the property we want to apply the attribute to
string conditionPath = propertyPath.Replace(property.name, showIfAttr.FieldCondition); //changes the path to the conditionalsource property path
SerializedProperty sourcePropertyValue = property.serializedObject.FindProperty(conditionPath);
if (sourcePropertyValue != null)
{
enabled = sourcePropertyValue.boolValue;
}
else
{
Debug.LogWarning("Attempting to use a ShowIfAttribute but no matching SourcePropertyValue found in object: " + showIfAttr.FieldCondition);
}
return(enabled);
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
//get the attribute data
ShowIfAttribute condHAtt = (ShowIfAttribute)attribute;
//check if the propery we want to draw should be enabled
bool enabled = GetShowIfAttributeResult(condHAtt, property);
//Enable/disable the property
bool wasEnabled = UnityEngine.GUI.enabled;
UnityEngine.GUI.enabled = enabled;
//Check if we should draw the property
if (!condHAtt.ShouldShow || enabled)
{
EditorGUI.PropertyField(position, property, label, true);
}
//Ensure that the next property that is being drawn uses the correct settings
UnityEngine.GUI.enabled = wasEnabled;
}
