//Must seal this method to keep sub-class share same code because we can never know which attribute drawer will be created
//if many different type of attributes are assigned
public sealed override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
drawOptionThisFrame = SwitchContext(property);
//Keep draw option of last frame to draw background before reset option
DrawBackground(position, drawOptionThisFrame, 1f);
drawOptionThisFrame.ResetOption();
//Modify power editing option by reading all power property attributes
ModifyOption(property);
//Special process of 'PowerWidget' field.
if (fieldInfo.FieldType.IsSubclassOf(typeof(PowerWidget)))
{
PowerWidgetDrawingTool tool = PowerWidgetDrawingToolFactory.GetWidgetDrawingTool(property);
if (tool != null)//Display widget when target widget drawing tool class has been found in Assembly
{
drawOptionThisFrame.overrideDrawer = (r, p, l) => { tool.WidgetDrawer(r, p, fieldInfo, l); return(tool.GetWidgetHeight(p, fieldInfo)); };
}
else
{
drawOptionThisFrame.overrideDrawer = (r, p, l) =>
{
return(PowerInspectorUtility.DrawErrorMessage(position, fieldInfo.FieldType.Name + "' has no drawing tool!", (float)(1.5 * EditorGUIUtility.singleLineHeight)));
};
}
}
drawOptionThisFrame.heightAfterDraw = DrawPowerProperty(position, property, label, drawOptionThisFrame);
drawOptionThisFrame.firstFrameDrawn = true;
}
public sealed override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
if (tool == null)
{
tool = PowerWidgetDrawingToolFactory.GetWidgetDrawingTool(property) as T;
}
if (tool != null)
{
tool.WidgetDrawer(position, property, fieldInfo, label);
}
}
public sealed override float GetPropertyHeight(SerializedProperty property, GUIContent label)
{
if (tool == null)
{
tool = PowerWidgetDrawingToolFactory.GetWidgetDrawingTool(property) as T;
}
if (tool == null)
{
return(EditorGUIUtility.singleLineHeight);
}
return(tool.GetWidgetHeight(property, fieldInfo));
}
