/**
* This method loads the properties if they are available and defined for the structure.
*
* @param structure the structure we read the properties from
* @param blenderContext the blender context
* @return loaded properties or null if they are not available
* @throws BlenderFileException an exception is thrown when the blend file is somehow corrupted
*/
protected Properties loadProperties(Structure structure, BlenderContext blenderContext)
throws BlenderFileException {
Properties properties = null;
Structure id = (Structure) structure.getFieldValue("ID");
if (id != null) {
Pointer pProperties = (Pointer) id.getFieldValue("properties");
if (pProperties.isNotNull()) {
Structure propertiesStructure = pProperties.fetchData().get(0);
properties = new Properties();
properties.load(propertiesStructure, blenderContext);
}
}
return properties;
}
/**
* The method applies properties to the given spatial. The Properties instance cannot be directly
* applied because the end-user might not have the blender plugin jar file and thus receive
* ClassNotFoundException. The values are set by name instead.
*
* @param spatial the spatial that is to have properties applied
* @param properties the properties to be applied
*/
public void applyProperties(Spatial spatial, Properties properties) {
List<String> propertyNames = properties.getSubPropertiesNames();
if (propertyNames != null && propertyNames.size() > 0) {
for (String propertyName : propertyNames) {
Object value = properties.findValue(propertyName);
if (value instanceof Savable
|| value instanceof Boolean
|| value instanceof String
|| value instanceof Float
|| value instanceof Integer
|| value instanceof Long) {
spatial.setUserData(propertyName, value);
} else if (value instanceof Double) {
spatial.setUserData(propertyName, ((Double) value).floatValue());
} else if (value instanceof int[]) {
spatial.setUserData(propertyName, Arrays.toString((int[]) value));
} else if (value instanceof float[]) {
spatial.setUserData(propertyName, Arrays.toString((float[]) value));
} else if (value instanceof double[]) {
spatial.setUserData(propertyName, Arrays.toString((double[]) value));
}
}
}
}