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com.anrisoftware.prefdialog.fields.spinner.SpinnerField Maven / Gradle / Ivy
/*
* Copyright 2013-2015 Erwin Müller
*
* This file is part of prefdialog-corefields.
*
* prefdialog-corefields is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* prefdialog-corefields is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with prefdialog-corefields. If not, see [email protected]
* @since 3.0
*/
@SuppressWarnings("serial")
public class SpinnerField extends AbstractTitleField {
private static final String STEP_SIZE_ATTRIBUTE = "stepSize";
private static final String MINIMUM_ATTRIBUTE = "minimum";
private static final String MAXIMUM_ATTRIBUTE = "maximum";
private static final Class ANNOTATION_CLASS = Spinner.class;
private static final String MODEL_ELEMENT = "model";
private static final String START_ATTRIBUTE = "start";
private static final String END_ATTRIBUTE = "end";
private static final String CALENDAR_FIELD_ATTRIBUTE = "calendarField";
private final SpinnerFieldLogger log;
private final ChangeListener changeListener;
private transient AnnotationClassFactory annotationClassFactory;
private transient AnnotationAccess annotationAccess;
private transient BeanAccessFactory beanAccessFactory;
private boolean customModelSet;
/**
* @see SpinnerFieldFactory#create(Object, String)
*/
@Inject
SpinnerField(SpinnerFieldLogger logger, @Assisted Object parentObject,
@Assisted String fieldName) {
super(new JSpinner(), parentObject, fieldName);
this.log = logger;
this.customModelSet = false;
this.changeListener = new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
try {
setValue(getComponent().getValue());
} catch (PropertyVetoException e1) {
}
}
};
}
@Inject
void setupSpinnerField(AnnotationClassFactory annotationClassFactory,
AnnotationAccessFactory annotationAccessFactory,
BeanAccessFactory beanAccessFactory) {
this.annotationClassFactory = annotationClassFactory;
this.annotationAccess = annotationAccessFactory.create(
ANNOTATION_CLASS, getAccessibleObject());
this.beanAccessFactory = beanAccessFactory;
SpinnerModel defaultModel = createDefaultModel();
setupModel(defaultModel);
getComponent().setValue(getValue());
}
private void setupModel(SpinnerModel defaultModel) {
@SuppressWarnings("unchecked")
AnnotationClass annotationClass = (AnnotationClass) annotationClassFactory
.create(getParentObject(), ANNOTATION_CLASS,
getAccessibleObject());
SpinnerModel model = annotationClass.withDefault(defaultModel)
.forAttribute(MODEL_ELEMENT).build();
setModel(model);
}
private SpinnerModel createDefaultModel() {
SpinnerModel model = createNumberModel();
model = model == null ? createDateModel() : model;
model = model == null ? createListModel() : model;
model = model == null ? new SpinnerNumberModel() : model;
return model;
}
private SpinnerModel createListModel() {
String field = annotationAccess.getValue("elements");
if (isBlank(field)) {
return null;
}
return new SpinnerListModel(beanAccessFactory.create(field,
getParentObject()).> getValue());
}
private SpinnerModel createDateModel() {
Object value = getValue();
if (!(value instanceof Date)) {
return null;
}
long[] start = annotationAccess.getValue(START_ATTRIBUTE);
long[] end = annotationAccess.getValue(END_ATTRIBUTE);
int field = annotationAccess.getValue(CALENDAR_FIELD_ATTRIBUTE);
Comparable cstart = start.length == 0 ? null : new Date(start[0]);
Comparable cend = end.length == 0 ? null : new Date(end[0]);
return new SpinnerDateModel((Date) value, cstart, cend, field);
}
private SpinnerModel createNumberModel() {
Object value = getValue();
if (!(value instanceof Number)) {
return null;
}
double[] max = annotationAccess.getValue(MAXIMUM_ATTRIBUTE);
double[] min = annotationAccess.getValue(MINIMUM_ATTRIBUTE);
double size = annotationAccess.getValue(STEP_SIZE_ATTRIBUTE);
if (value instanceof Integer) {
Comparable maximum = max.length == 0 ? null : (int) max[0];
Comparable minimum = min.length == 0 ? null : (int) min[0];
return new SpinnerNumberModel((Number) getValue(), minimum,
maximum, (int) size);
}
if (value instanceof Long) {
Comparable maximum = max.length == 0 ? null : (long) max[0];
Comparable minimum = min.length == 0 ? null : (long) min[0];
return new SpinnerNumberModel((Number) getValue(), minimum,
maximum, (long) size);
}
if (value instanceof Double) {
Comparable maximum = max.length == 0 ? null : max[0];
Comparable minimum = min.length == 0 ? null : min[0];
return new SpinnerNumberModel((Number) getValue(), minimum,
maximum, size);
}
return null;
}
@Override
public void setValue(Object value) throws PropertyVetoException {
super.setValue(value);
if (customModelSet) {
getComponent().setValue(value);
}
}
/**
* Sets the spinner model for the field.
*
* @param model
* the {@link SpinnerModel}.
*
* @throws NullPointerException
* if the specified model is {@code null}.
*/
public void setModel(SpinnerModel model) {
log.checkModel(this, model);
removeOldModel();
getComponent().setModel(model);
model.addChangeListener(changeListener);
customModelSet = true;
log.modelSet(this, model);
}
private void removeOldModel() {
getComponent().getModel().removeChangeListener(changeListener);
}
/**
* Sets the spinner model for the field.
*
* @return the {@link SpinnerModel}.
*/
public SpinnerModel getModel() {
return getComponent().getModel();
}
}
