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/*
* Copyright (c) 2007 through 2024 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* or .
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.swing.spinner;
import java.awt.Component;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.GroupLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.SpinnerModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.smallmind.nutsnbolts.lang.UnknownSwitchCaseException;
import org.smallmind.nutsnbolts.util.WeakEventListenerList;
import org.smallmind.swing.EditorEvent;
import org.smallmind.swing.EditorListener;
import org.smallmind.swing.button.ButtonRepeater;
public class Spinner extends JPanel implements EditorListener, ActionListener, ChangeListener, MouseListener, FocusListener {
private static final ImageIcon SPINNER_UP = new ImageIcon(ClassLoader.getSystemResource("org/smallmind/swing/system/arrow_right_blue_16.png"));
private static final ImageIcon SPINNER_DOWN = new ImageIcon(ClassLoader.getSystemResource("org/smallmind/swing/system/arrow_left_blue_16.png"));
private final WeakEventListenerList listenerList;
private final SpinnerModel spinnerModel;
private final SpinnerRubberStamp rubberStamp;
private final JPanel valuePanel;
private final JButton spinnerUpButton;
private final JButton spinnerDownButton;
private final ButtonRepeater spinnerUpButtonRepeater;
private final ButtonRepeater spinnerDownButtonRepeater;
private SpinnerRenderer renderer;
private SpinnerEditor editor;
private boolean editing = false;
public Spinner (SpinnerModel spinnerModel, long delayMilliseconds) {
super();
GroupLayout groupLayout;
int valuePanelHeight;
setLayout(groupLayout = new GroupLayout(this));
this.spinnerModel = spinnerModel;
rubberStamp = new SpinnerRubberStamp(this);
setSpinnerRenderer(new DefaultSpinnerRenderer());
spinnerUpButton = new JButton(SPINNER_UP);
spinnerUpButton.setFocusable(false);
spinnerUpButtonRepeater = new ButtonRepeater(spinnerUpButton, delayMilliseconds);
spinnerDownButton = new JButton(SPINNER_DOWN);
spinnerDownButton.setFocusable(false);
spinnerDownButtonRepeater = new ButtonRepeater(spinnerDownButton, delayMilliseconds);
valuePanel = new JPanel(new GridLayout(1, 1));
valuePanel.add(rubberStamp);
listenerList = new WeakEventListenerList();
spinnerUpButtonRepeater.addActionListener(this);
spinnerDownButtonRepeater.addActionListener(this);
rubberStamp.addMouseListener(this);
spinnerModel.addChangeListener(this);
setEnabled(true);
valuePanelHeight = (int)valuePanel.getPreferredSize().getHeight();
groupLayout.setHorizontalGroup(groupLayout.createSequentialGroup().addComponent(spinnerDownButton, 20, 20, 20).addComponent(valuePanel).addComponent(spinnerUpButton, 20, 20, 20));
groupLayout.setVerticalGroup(groupLayout.createParallelGroup().addComponent(spinnerDownButton, valuePanelHeight, valuePanelHeight, valuePanelHeight).addComponent(valuePanel, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(spinnerUpButton, valuePanelHeight, valuePanelHeight, valuePanelHeight));
}
public synchronized void addChangeListener (ChangeListener changeListener) {
listenerList.addListener(changeListener);
}
public synchronized void removeChangeListener (ChangeListener changeListener) {
listenerList.removeListener(changeListener);
}
public synchronized SpinnerRenderer getSpinnerRenderer () {
return renderer;
}
public synchronized void setSpinnerRenderer (SpinnerRenderer renderer) {
this.renderer = renderer;
rubberStamp.repaint();
}
public synchronized SpinnerEditor getSpinnerEditor () {
return editor;
}
public synchronized void setSpinnerEditor (SpinnerEditor editor) {
if (this.editor != null) {
this.editor.removeEditorListener(this);
}
this.editor = editor;
editor.addEditorListener(this);
}
public synchronized Object getValue () {
if (editing) {
return (editor.isValid()) ? editor.getValue() : null;
}
return spinnerModel.getValue();
}
public synchronized void setValue (Object value) {
spinnerModel.setValue(value);
}
public synchronized Component getRenderComponent () {
return renderer.getSpinnerRendererComponent(this, getValue());
}
@Override
public void setEnabled (boolean enabled) {
if (enabled) {
if (spinnerModel instanceof EdgeAwareSpinnerModel) {
spinnerUpButton.setEnabled(!getValue().equals(((EdgeAwareSpinnerModel)spinnerModel).getMaximumValue()));
spinnerDownButton.setEnabled(!getValue().equals(((EdgeAwareSpinnerModel)spinnerModel).getMinimumValue()));
} else {
spinnerUpButton.setEnabled(true);
spinnerDownButton.setEnabled(true);
}
rubberStamp.repaint();
} else {
cancelEditing(false);
rubberStamp.repaint();
spinnerUpButton.setEnabled(false);
spinnerDownButton.setEnabled(false);
}
super.setEnabled(enabled);
}
public void cancelEditing () {
cancelEditing(true);
}
public synchronized void cancelEditing (boolean andEnable) {
if (editing) {
editing = false;
valuePanel.getComponent(0).removeFocusListener(this);
valuePanel.removeAll();
valuePanel.add(rubberStamp);
valuePanel.revalidate();
if (andEnable) {
setEnabled(true);
}
}
}
public synchronized void stopEditing () {
if (editing) {
spinnerModel.setValue(editor.getValue());
cancelEditing();
}
}
public synchronized void editorStatus (EditorEvent editorEvent) {
switch (editorEvent.getState()) {
case STOPPED:
if (editor.isValid()) {
stopEditing();
} else {
cancelEditing();
}
rubberStamp.repaint();
break;
case CANCELLED:
cancelEditing();
rubberStamp.repaint();
break;
case VALID:
break;
case INVALID:
break;
default:
throw new UnknownSwitchCaseException(editorEvent.getState().name());
}
}
public synchronized void actionPerformed (ActionEvent actionEvent) {
if (editing) {
stopEditing();
}
if (actionEvent.getSource() == spinnerUpButton) {
spinnerModel.setValue(spinnerModel.getNextValue());
} else if (actionEvent.getSource() == spinnerDownButton) {
spinnerModel.setValue(spinnerModel.getPreviousValue());
}
}
public synchronized void stateChanged (ChangeEvent changeEvent) {
ChangeEvent spinnerChangeEvent;
rubberStamp.repaint();
if (spinnerModel instanceof EdgeAwareSpinnerModel) {
spinnerUpButton.setEnabled(!spinnerModel.getValue().equals(((EdgeAwareSpinnerModel)spinnerModel).getMaximumValue()));
spinnerDownButton.setEnabled(!spinnerModel.getValue().equals(((EdgeAwareSpinnerModel)spinnerModel).getMinimumValue()));
}
spinnerChangeEvent = new ChangeEvent(this);
for (ChangeListener changeListener : listenerList) {
changeListener.stateChanged(spinnerChangeEvent);
}
}
public void mouseEntered (MouseEvent mouseEvent) {
}
public void mouseExited (MouseEvent mouseEvent) {
}
public void mouseClicked (MouseEvent mouseEvent) {
}
public void mouseReleased (MouseEvent mouseEvent) {
}
public synchronized void mousePressed (MouseEvent mouseEvent) {
Component editorComponent;
if (isEnabled() && (editor != null) && (!editing)) {
editorComponent = editor.getSpinnerEditorComponent(this, getValue());
editorComponent.setPreferredSize(rubberStamp.getPreferredSize());
editorComponent.addFocusListener(this);
valuePanel.removeAll();
valuePanel.add(editorComponent);
valuePanel.revalidate();
editorComponent.requestFocusInWindow();
editor.startEditing();
editing = true;
}
}
public synchronized void focusGained (FocusEvent focusEvent) {
}
public synchronized void focusLost (FocusEvent focusEvent) {
cancelEditing();
}
}
