Java tutorial
/* * JCalendarDemo.java - Demonstration of JCalendar Java Bean * Copyright (C) 2004 Kai Toedter * kai@toedter.com * www.toedter.com * * This program 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 2 * of the License, or (at your option) any later version. * * This program 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ package br.arthur.temp.tests; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; import java.beans.BeanInfo; import java.beans.IntrospectionException; import java.beans.Introspector; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.beans.PropertyDescriptor; import java.lang.reflect.Method; import java.net.URL; import java.util.Date; import javax.swing.AbstractAction; import javax.swing.BorderFactory; import javax.swing.ButtonGroup; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JApplet; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JColorChooser; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JRadioButtonMenuItem; import javax.swing.JSplitPane; import javax.swing.JTextField; import javax.swing.JToolBar; import javax.swing.KeyStroke; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.UIManager.LookAndFeelInfo; import javax.swing.plaf.basic.BasicSplitPaneDivider; import javax.swing.plaf.basic.BasicSplitPaneUI; import com.jgoodies.looks.FontPolicies; import com.jgoodies.looks.FontPolicy; import com.jgoodies.looks.FontSet; import com.jgoodies.looks.FontSets; import com.jgoodies.looks.plastic.PlasticLookAndFeel; import com.toedter.calendar.JCalendar; import com.toedter.calendar.JDateChooser; import com.toedter.calendar.JDayChooser; import com.toedter.calendar.JMonthChooser; import com.toedter.calendar.JYearChooser; import com.toedter.calendar.demo.DateChooserPanel; import com.toedter.components.JLocaleChooser; import com.toedter.components.JSpinField; import com.toedter.components.JTitlePanel; /** * A demonstration Applet for the JCalendar bean. The demo can also be started * as Java application. * * @author Kai Toedter * @version $LastChangedRevision: 166 $ * @version $LastChangedDate: 2011-06-26 21:58:35 +0200 (So, 26 Jun 2011) $ */ public class JCalendarDemo extends JApplet implements PropertyChangeListener { private static final long serialVersionUID = 6739986412544494316L; private JSplitPane splitPane; private JPanel calendarPanel; private JComponent[] beans; private JPanel propertyPanel; private JTitlePanel propertyTitlePanel; private JTitlePanel componentTitlePanel; private JPanel componentPanel; private JToolBar toolBar; /** * Initializes the applet. */ public void init() { // Set the JGoodies Plastic 3D look and feel initializeLookAndFeels(); // initialize all beans to demo beans = new JComponent[6]; beans[0] = new DateChooserPanel(); beans[1] = new JCalendar(); beans[2] = new JDayChooser(); beans[3] = new JMonthChooser(); beans[4] = new JYearChooser(); beans[5] = new JSpinField(); ((JSpinField) beans[5]).adjustWidthToMaximumValue(); ((JYearChooser) beans[4]).setMaximum(((JSpinField) beans[5]).getMaximum()); ((JYearChooser) beans[4]).adjustWidthToMaximumValue(); getContentPane().setLayout(new BorderLayout()); setJMenuBar(createMenuBar()); toolBar = createToolBar(); getContentPane().add(toolBar, BorderLayout.NORTH); splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT); splitPane.setBorder(BorderFactory.createLineBorder(Color.GRAY)); splitPane.setDividerSize(4); splitPane.setDividerLocation(240); BasicSplitPaneDivider divider = ((BasicSplitPaneUI) splitPane.getUI()).getDivider(); if (divider != null) { divider.setBorder(null); } propertyPanel = new JPanel(); componentPanel = new JPanel(); URL iconURL = beans[0].getClass().getResource("images/" + beans[0].getName() + "Color16.gif"); ImageIcon icon = new ImageIcon(iconURL); propertyTitlePanel = new JTitlePanel("Properties", null, propertyPanel, BorderFactory.createEmptyBorder(4, 4, 4, 4)); componentTitlePanel = new JTitlePanel("Component", icon, componentPanel, BorderFactory.createEmptyBorder(4, 4, 0, 4)); splitPane.setBottomComponent(propertyTitlePanel); splitPane.setTopComponent(componentTitlePanel); installBean(beans[0]); getContentPane().add(splitPane, BorderLayout.CENTER); } /** * Installs the JGoodies Look & Feels, if available, in classpath. */ public final void initializeLookAndFeels() { // if in classpath thry to load JGoodies Plastic Look & Feel try { LookAndFeelInfo[] lnfs = UIManager.getInstalledLookAndFeels(); boolean found = false; for (int i = 0; i < lnfs.length; i++) { if (lnfs[i].getName().equals("JGoodies Plastic 3D")) { found = true; } } if (!found) { UIManager.installLookAndFeel("JGoodies Plastic 3D", "com.jgoodies.looks.plastic.Plastic3DLookAndFeel"); } String os = System.getProperty("os.name"); FontSet fontSet = null; if (os.startsWith("Windows")) { fontSet = FontSets.createDefaultFontSet(new Font("arial unicode MS", Font.PLAIN, 12)); } else { fontSet = FontSets.createDefaultFontSet(new Font("arial unicode", Font.PLAIN, 12)); } FontPolicy fixedPolicy = FontPolicies.createFixedPolicy(fontSet); PlasticLookAndFeel.setFontPolicy(fixedPolicy); UIManager.setLookAndFeel("com.jgoodies.looks.plastic.Plastic3DLookAndFeel"); } catch (Throwable t) { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception e) { e.printStackTrace(); } } } /** * Creates the menu bar * * @return Description of the Return Value */ public JToolBar createToolBar() { // Create the tool bar toolBar = new JToolBar(); toolBar.putClientProperty("jgoodies.headerStyle", "Both"); toolBar.setRollover(true); toolBar.setFloatable(false); for (int i = 0; i < beans.length; i++) { Icon icon; JButton button; try { final JComponent bean = beans[i]; URL iconURL = bean.getClass().getResource("images/" + bean.getName() + "Color16.gif"); icon = new ImageIcon(iconURL); button = new JButton(icon); ActionListener actionListener = new ActionListener() { public void actionPerformed(ActionEvent e) { installBean(bean); } }; button.addActionListener(actionListener); } catch (Exception e) { System.out.println("JCalendarDemo.createToolBar(): " + e); button = new JButton(beans[i].getName()); } button.setFocusPainted(false); toolBar.add(button); } return toolBar; } /** * Creates the menu bar * * @return Description of the Return Value */ public JMenuBar createMenuBar() { // Create the menu bar final JMenuBar menuBar = new JMenuBar(); // Menu for all beans to demo JMenu componentsMenu = new JMenu("Components"); componentsMenu.setMnemonic('C'); menuBar.add(componentsMenu); for (int i = 0; i < beans.length; i++) { Icon icon; JMenuItem menuItem; try { URL iconURL = beans[i].getClass().getResource("images/" + beans[i].getName() + "Color16.gif"); icon = new ImageIcon(iconURL); menuItem = new JMenuItem(beans[i].getName(), icon); } catch (Exception e) { System.out.println("JCalendarDemo.createMenuBar(): " + e + " for URL: " + "images/" + beans[i].getName() + "Color16.gif"); menuItem = new JMenuItem(beans[i].getName()); } componentsMenu.add(menuItem); final JComponent bean = beans[i]; ActionListener actionListener = new ActionListener() { public void actionPerformed(ActionEvent e) { installBean(bean); } }; menuItem.addActionListener(actionListener); } // Menu for the look and feels (lnfs). UIManager.LookAndFeelInfo[] lnfs = UIManager.getInstalledLookAndFeels(); ButtonGroup lnfGroup = new ButtonGroup(); JMenu lnfMenu = new JMenu("Look&Feel"); lnfMenu.setMnemonic('L'); menuBar.add(lnfMenu); for (int i = 0; i < lnfs.length; i++) { if (!lnfs[i].getName().equals("CDE/Motif")) { JRadioButtonMenuItem rbmi = new JRadioButtonMenuItem(lnfs[i].getName()); lnfMenu.add(rbmi); // preselect the current Look & feel rbmi.setSelected(UIManager.getLookAndFeel().getName().equals(lnfs[i].getName())); // store lool & feel info as client property rbmi.putClientProperty("lnf name", lnfs[i]); // create and add the item listener rbmi.addItemListener( // inlining new ItemListener() { public void itemStateChanged(ItemEvent ie) { JRadioButtonMenuItem rbmi2 = (JRadioButtonMenuItem) ie.getSource(); if (rbmi2.isSelected()) { // get the stored look & feel info UIManager.LookAndFeelInfo info = (UIManager.LookAndFeelInfo) rbmi2 .getClientProperty("lnf name"); try { menuBar.putClientProperty("jgoodies.headerStyle", "Both"); UIManager.setLookAndFeel(info.getClassName()); // update the complete application's // look & feel SwingUtilities.updateComponentTreeUI(JCalendarDemo.this); for (int i = 0; i < beans.length; i++) { SwingUtilities.updateComponentTreeUI(beans[i]); } // set the split pane devider border to // null BasicSplitPaneDivider divider = ((BasicSplitPaneUI) splitPane.getUI()) .getDivider(); if (divider != null) { divider.setBorder(null); } } catch (Exception e) { e.printStackTrace(); System.err.println("Unable to set UI " + e.getMessage()); } } } }); lnfGroup.add(rbmi); } } // the help menu JMenu helpMenu = new JMenu("Help"); helpMenu.setMnemonic('H'); JMenuItem aboutItem = helpMenu.add(new AboutAction(this)); aboutItem.setMnemonic('A'); aboutItem.setAccelerator(KeyStroke.getKeyStroke('A', java.awt.Event.CTRL_MASK)); menuBar.add(helpMenu); return menuBar; } /** * The applet is a PropertyChangeListener for "locale" and "calendar". * * @param evt * Description of the Parameter */ public void propertyChange(PropertyChangeEvent evt) { if (calendarPanel != null) { if (evt.getPropertyName().equals("calendar")) { // calendar = (Calendar) evt.getNewValue(); // DateFormat df = DateFormat.getDateInstance(DateFormat.LONG, // jcalendar.getLocale()); // dateField.setText(df.format(calendar.getTime())); } } } /** * Creates a JFrame with a JCalendarDemo inside and can be used for testing. * * @param s * The command line arguments */ public static void main(String[] s) { WindowListener l = new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }; JFrame frame = new JFrame("JCalendar Demo"); frame.addWindowListener(l); JCalendarDemo demo = new JCalendarDemo(); demo.init(); frame.getContentPane().add(demo); frame.pack(); frame.setBounds(200, 200, (int) frame.getPreferredSize().getWidth() + 40, (int) frame.getPreferredSize().getHeight() + 250); frame.setVisible(true); } /** * Installes a demo bean. * * @param bean * the demo bean */ private void installBean(JComponent bean) { try { componentPanel.removeAll(); componentPanel.add(bean); BeanInfo beanInfo = Introspector.getBeanInfo(bean.getClass(), bean.getClass().getSuperclass()); PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors(); propertyPanel.removeAll(); GridBagLayout gridbag = new GridBagLayout(); GridBagConstraints c = new GridBagConstraints(); c.fill = GridBagConstraints.BOTH; propertyPanel.setLayout(gridbag); int count = 0; String[] types = new String[] { "class java.util.Locale", "boolean", "int", "class java.awt.Color", "class java.util.Date", "class java.lang.String" }; for (int t = 0; t < types.length; t++) { for (int i = 0; i < propertyDescriptors.length; i++) { if (propertyDescriptors[i].getWriteMethod() != null) { String type = propertyDescriptors[i].getPropertyType().toString(); final PropertyDescriptor propertyDescriptor = propertyDescriptors[i]; final JComponent currentBean = bean; final Method readMethod = propertyDescriptor.getReadMethod(); final Method writeMethod = propertyDescriptor.getWriteMethod(); if (type.equals(types[t]) && (((readMethod != null) && (writeMethod != null)) || ("class java.util.Locale".equals(type)))) { if ("boolean".equals(type)) { boolean isSelected = false; try { Boolean booleanObj = ((Boolean) readMethod.invoke(bean, (Object[]) null)); isSelected = booleanObj.booleanValue(); } catch (Exception e) { e.printStackTrace(); } final JCheckBox checkBox = new JCheckBox("", isSelected); checkBox.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { try { if (checkBox.isSelected()) { writeMethod.invoke(currentBean, new Object[] { new Boolean(true) }); } else { writeMethod.invoke(currentBean, new Object[] { new Boolean(false) }); } } catch (Exception e) { e.printStackTrace(); } } }); addProperty(propertyDescriptors[i], checkBox, gridbag); count += 1; } else if ("int".equals(type)) { JSpinField spinField = new JSpinField(); spinField.addPropertyChangeListener(new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { try { if (evt.getPropertyName().equals("value")) { writeMethod.invoke(currentBean, new Object[] { evt.getNewValue() }); } } catch (Exception e) { } } }); try { Integer integerObj = ((Integer) readMethod.invoke(bean, (Object[]) null)); spinField.setValue(integerObj.intValue()); } catch (Exception e) { e.printStackTrace(); } addProperty(propertyDescriptors[i], spinField, gridbag); count += 1; } else if ("class java.lang.String".equals(type)) { String string = ""; try { string = ((String) readMethod.invoke(bean, (Object[]) null)); } catch (Exception e) { e.printStackTrace(); } JTextField textField = new JTextField(string); ActionListener actionListener = new ActionListener() { public void actionPerformed(ActionEvent e) { try { writeMethod.invoke(currentBean, new Object[] { e.getActionCommand() }); } catch (Exception ex) { } } }; textField.addActionListener(actionListener); addProperty(propertyDescriptors[i], textField, gridbag); count += 1; } else if ("class java.util.Locale".equals(type)) { JLocaleChooser localeChooser = new JLocaleChooser(bean); localeChooser.setPreferredSize( new Dimension(200, localeChooser.getPreferredSize().height)); addProperty(propertyDescriptors[i], localeChooser, gridbag); count += 1; } else if ("class java.util.Date".equals(type)) { Date date = null; try { date = ((Date) readMethod.invoke(bean, (Object[]) null)); } catch (Exception e) { e.printStackTrace(); } JDateChooser dateChooser = new JDateChooser(date); dateChooser.addPropertyChangeListener(new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { try { if (evt.getPropertyName().equals("date")) { writeMethod.invoke(currentBean, new Object[] { evt.getNewValue() }); } } catch (Exception e) { } } }); addProperty(propertyDescriptors[i], dateChooser, gridbag); count += 1; } else if ("class java.awt.Color".equals(type)) { final JButton button = new JButton(); try { final Color colorObj = ((Color) readMethod.invoke(bean, (Object[]) null)); button.setText("..."); button.setBackground(colorObj); ActionListener actionListener = new ActionListener() { public void actionPerformed(ActionEvent e) { Color newColor = JColorChooser.showDialog(JCalendarDemo.this, "Choose Color", colorObj); button.setBackground(newColor); try { writeMethod.invoke(currentBean, new Object[] { newColor }); } catch (Exception e1) { e1.printStackTrace(); } } }; button.addActionListener(actionListener); } catch (Exception e) { e.printStackTrace(); } addProperty(propertyDescriptors[i], button, gridbag); count += 1; } } } } } URL iconURL = bean.getClass().getResource("images/" + bean.getName() + "Color16.gif"); ImageIcon icon = new ImageIcon(iconURL); componentTitlePanel.setTitle(bean.getName(), icon); bean.invalidate(); propertyPanel.invalidate(); componentPanel.invalidate(); componentPanel.repaint(); } catch (IntrospectionException e) { e.printStackTrace(); } } private void addProperty(PropertyDescriptor propertyDescriptor, JComponent editor, GridBagLayout grid) { String text = propertyDescriptor.getDisplayName(); String newText = ""; for (int i = 0; i < text.length(); i++) { char c = text.charAt(i); if (((c >= 'A') && (c <= 'Z')) || (i == 0)) { if (i == 0) { c += ('A' - 'a'); } newText += (" " + c); } else { newText += c; } } JLabel label = new JLabel(newText + ": ", null, JLabel.RIGHT); GridBagConstraints c = new GridBagConstraints(); c.weightx = 1.0; c.fill = GridBagConstraints.BOTH; grid.setConstraints(label, c); propertyPanel.add(label); c.gridwidth = GridBagConstraints.REMAINDER; grid.setConstraints(editor, c); propertyPanel.add(editor); JPanel blankLine = new JPanel() { private static final long serialVersionUID = 4514530330521503732L; public Dimension getPreferredSize() { return new Dimension(10, 2); } }; grid.setConstraints(blankLine, c); propertyPanel.add(blankLine); } /** * Action to show the About dialog * * @author toedter_k */ class AboutAction extends AbstractAction { private static final long serialVersionUID = -5204865941545323214L; private final JCalendarDemo demo; /** * Constructor for the AboutAction object * * @param demo * Description of the Parameter */ AboutAction(JCalendarDemo demo) { super("About..."); this.demo = demo; } /** * Description of the Method * * @param event * Description of the Parameter */ public void actionPerformed(ActionEvent event) { JOptionPane.showMessageDialog(demo, "JCalendar Demo\nVersion 1.4\n\nKai Toedter\nkai@toedter.com\nwww.toedter.com", "About...", JOptionPane.INFORMATION_MESSAGE); } } }