/**
* Creates a parameter editor instance for the given parameter.
*
* @param parameter the parameter
* @return the parameter editor, never null
*/
public static ParamEditor createParamEditor(Parameter parameter) {
Guardian.assertNotNull("parameter", parameter);
ParamProperties paramProps = parameter.getProperties();
Debug.assertNotNull(paramProps);
ParamEditor editor = null;
// Step 1: Try to create an editor from the 'editorClass' property
//
Class editorClass = paramProps.getEditorClass();
if (editorClass != null) {
Constructor editorConstructor = null;
try {
editorConstructor = editorClass.getConstructor(Parameter.class);
} catch (NoSuchMethodException e) {
Debug.trace(e);
} catch (SecurityException e) {
Debug.trace(e);
}
if (editorConstructor != null) {
try {
editor = (ParamEditor) editorConstructor.newInstance(parameter);
} catch (InstantiationException e) {
Debug.trace(e);
} catch (IllegalAccessException e) {
Debug.trace(e);
} catch (IllegalArgumentException e) {
Debug.trace(e);
} catch (InvocationTargetException e) {
Debug.trace(e);
}
}
}
if (editor != null) {
return editor;
}
// Step 2: Create a default editor based on the parameter's type info
//
if (parameter.isTypeOf(Boolean.class)) {
editor = new BooleanEditor(parameter);
} else if (parameter.isTypeOf(Color.class)) {
editor = new ColorEditor(parameter);
} else if (parameter.isTypeOf(File.class)) {
editor = new FileEditor(parameter);
} else if (paramProps.getValueSet() != null && paramProps.getValueSet().length > 0) {
if (parameter.isTypeOf(String[].class)) {
editor = new ListEditor(parameter);
} else {
editor = new ComboBoxEditor(parameter);
}
}
// The last choice works always: a text field!
if (editor == null) {
editor = new TextFieldEditor(parameter);
}
return editor;
}
