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org.danilopianini.view.ObjectModFrame Maven / Gradle / Ivy
Handful shortcuts for Java programming, Java 7 compatible.
/*******************************************************************************
* Copyright (C) 2009, 2015, Danilo Pianini and contributors
* listed in the project's build.gradle or pom.xml file.
*
* This file is distributed under the terms of the Apache License, version 2.0
*******************************************************************************/
package org.danilopianini.view;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.reflect.Field;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.JTextField;
import javax.swing.border.LineBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import org.danilopianini.lang.CollectionWithCurrentElement;
import org.danilopianini.lang.RangedInteger;
/**
* @author Danilo Pianini
*
*/
public class ObjectModFrame extends JFrame {
private static final long serialVersionUID = 5816449414660853953L;
private String actionCommand = "";
private final AtomicInteger idgen = new AtomicInteger();
private final List listeners = Collections.synchronizedList(new ArrayList());
private class BooleanGUIComponent extends NoRefGUIComponent implements ActionListener {
private static final long serialVersionUID = -7149307455972615932L;
private final JCheckBox box;
public BooleanGUIComponent(final String name, final Object obj, final Field f) throws IllegalAccessException {
super(obj, f);
box = new JCheckBox(name, getField().getBoolean(getObject()));
add(box);
box.addActionListener(this);
}
@Override
public void actionPerformed(final ActionEvent e) {
update(box.isSelected());
}
}
private class EnumGUIComponent extends NoRefGUIComponent implements ActionListener {
private static final long serialVersionUID = 3329099673991014137L;
private final JComboBox box;
public EnumGUIComponent(final String name, final Object obj, final Field f) throws IllegalAccessException {
super(obj, f);
setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
box = new JComboBox(f.getType().getEnumConstants());
box.setSelectedItem(f.get(obj));
add(new JLabel(name));
add(Box.createHorizontalStrut(10));
add(box);
box.addActionListener(this);
}
@Override
public void actionPerformed(final ActionEvent e) {
update(box.getSelectedItem());
}
}
private class CurrentCollectionGUIComponent extends NoRefGUIComponent implements ActionListener {
private static final long serialVersionUID = 6031819767955928108L;
private final JComboBox box;
private final CollectionWithCurrentElement col;
@SuppressWarnings("unchecked")
public CurrentCollectionGUIComponent(final String name, final Object obj, final Field f) throws IllegalAccessException {
super(obj, f);
setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
col = (CollectionWithCurrentElement) f.get(obj);
box = new JComboBox(col.toArray());
box.setSelectedItem(col.getCurrent());
add(new JLabel(name));
add(Box.createHorizontalStrut(10));
add(box);
box.addActionListener(this);
}
@Override
public void actionPerformed(final ActionEvent e) {
col.setCurrent(box.getSelectedItem());
}
}
private abstract class NoRefGUIComponent extends JPanel {
private static final long serialVersionUID = 7131340105783363250L;
private final Field field;
private final Object object;
public NoRefGUIComponent(final Object obj, final Field f) {
super();
field = f;
object = obj;
}
protected Field getField() {
return field;
}
protected Object getObject() {
return object;
}
protected void update(final Object fieldVal) {
try {
field.set(object, fieldVal);
notifyListeners();
} catch (IllegalArgumentException | IllegalAccessException e) {
e.printStackTrace(); // NOPMD by danysk on 1/23/15 6:40 PM
}
}
}
private class RangedIntegerGUIComponent extends JPanel implements ChangeListener {
private static final long serialVersionUID = 4082696268464803253L;
public static final int SLIDERS_MAJOR_TICKS = 10;
private final RangedInteger n;
private final JSlider slider = new JSlider();
private final JLabel label = new JLabel();
public RangedIntegerGUIComponent(final String name, final RangedInteger num) {
super();
n = num;
add(new JLabel(name));
add(slider);
add(label);
final int min = n.getMin();
final int max = n.getMax();
slider.setMaximum(max);
slider.setMinimum(min);
slider.setMinorTickSpacing(1);
slider.setMajorTickSpacing((max - min) / SLIDERS_MAJOR_TICKS);
slider.setValue(n.getVal());
label.setText(Integer.toString(n.getVal()));
slider.addChangeListener(this);
}
@Override
public void stateChanged(final ChangeEvent e) {
n.setVal(slider.getValue());
label.setText(Integer.toString(n.getVal()));
pack();
notifyListeners();
}
}
private class StringGUIComponent extends NoRefGUIComponent implements DocumentListener {
private static final long serialVersionUID = -1557933366572097377L;
private final JTextField text;
public StringGUIComponent(final String name, final Object obj, final Field f) throws IllegalAccessException {
super(obj, f);
setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
add(new JLabel(name));
add(Box.createHorizontalStrut(10));
text = new JTextField(f.get(obj).toString());
add(text);
text.getDocument().addDocumentListener(this);
}
@Override
public void changedUpdate(final DocumentEvent e) {
update();
}
@Override
public void insertUpdate(final DocumentEvent e) {
update();
}
@Override
public void removeUpdate(final DocumentEvent e) {
update();
}
private void update() {
update(text.getText());
}
}
private static boolean assignable(final Class clazz, final Field field) throws IllegalAccessException {
return clazz.isAssignableFrom(field.getType());
}
/**
* @param obj
* the object to inspect
* @throws IllegalAccessException
* if the fields supposed to be managed by the graphical
* interface are not accessible
*/
public ObjectModFrame(final Object obj) throws IllegalAccessException {
super();
setType(Type.POPUP);
setAlwaysOnTop(true);
final JPanel contents = new JPanel();
contents.setBorder(new LineBorder(new Color(0, 0, 0)));
addMouseListener(new CloseFrameWhenMouseExits(this));
contents.setLayout(new BoxLayout(contents, BoxLayout.Y_AXIS));
for (final Field f : getAllFields(new ArrayList(), obj.getClass())) {
if (f.isAnnotationPresent(ExportForGUI.class)) {
final String expName = f.getAnnotation(ExportForGUI.class).nameToExport();
final boolean accessible = f.isAccessible();
if (!accessible) {
setAccess(f, true);
}
if (assignable(RangedInteger.class, f)) {
contents.add(new RangedIntegerGUIComponent(expName, (RangedInteger) f.get(obj)));
} else if (Boolean.class.equals(f.getType()) || f.getType().equals(Boolean.TYPE)) {
contents.add(new BooleanGUIComponent(expName, obj, f));
} else if (String.class.equals(f.getType())) {
contents.add(new StringGUIComponent(expName, obj, f));
} else if (f.getType().isEnum()) {
contents.add(new EnumGUIComponent(expName, obj, f));
} else if (CollectionWithCurrentElement.class.isAssignableFrom(f.getType())) {
contents.add(new CurrentCollectionGUIComponent(expName, obj, f));
} else {
setAccess(f, accessible);
}
}
}
getContentPane().add(contents);
pack();
}
private static void setAccess(final Field f, final boolean accessible) {
AccessController.doPrivileged(new PrivilegedAction() {
@Override
public Void run() {
f.setAccessible(accessible);
return null;
}
});
}
/**
* Adds an ActionListener to the frame's components.
*
* @param l
* the ActionListener to be added
*/
public void addActionListener(final ActionListener l) {
listeners.add(l);
}
/**
* Returns the action command for this frame's components.
*
* @return the action command for this frame's components
*/
public String getActionCommand() {
return actionCommand;
}
private void notifyListeners() {
final ActionEvent e = new ActionEvent(this, idgen.getAndIncrement(), actionCommand);
for (final ActionListener a : listeners) {
a.actionPerformed(e);
}
}
/**
* Sets the action command for this frame's components.
*
* @param ac
* the action command for this frame's components
*/
public void setActionCommand(final String ac) {
this.actionCommand = ac;
}
private static List getAllFields(final List fields, final Class type) {
if (type.getSuperclass() != null) {
getAllFields(fields, type.getSuperclass());
}
for (final Field field: type.getDeclaredFields()) {
fields.add(field);
}
return fields;
}
}
