| gvSIG desktop 1

package de.ios.framework.swing;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Container;

import java.awt.FlowLayout;

import java.awt.GridLayout;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import javax.swing.BorderFactory;

import javax.swing.Box;

import javax.swing.BoxLayout;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.JPopupMenu;

import javax.swing.SwingUtilities;

import javax.swing.UIManager;

import javax.swing.border.Border;

import javax.swing.border.EmptyBorder;

import javax.swing.border.EtchedBorder;

import javax.swing.event.PopupMenuEvent;

import javax.swing.event.PopupMenuListener;

import javax.swing.plaf.ComboBoxUI;

import javax.swing.plaf.basic.ComboPopup;

import javax.swing.plaf.metal.MetalComboBoxUI;

import com.sun.java.swing.plaf.motif.MotifComboBoxUI;

import com.sun.java.swing.plaf.windows.WindowsComboBoxUI;

/**

 * @version 1.0 11/02/2000

 */

//////////////////////////////////////////////////////////////

public class DateComboBox extends JComboBox {

  private static final long serialVersionUID = 1L;

static java.util.ResourceBundle resource = java.util.ResourceBundle.getBundle("resources.Traduction")/*#BundleType=List*/;

    protected SimpleDateFormat dateFormat = new SimpleDateFormat("MMM d, yyyy");

    public void setDateFormat(SimpleDateFormat dateFormat) {

        this.dateFormat = dateFormat;

    }

    public void setSelectedItem(Object item) {

        // Could put extra logic here or in renderer when item is instanceof Date, Calendar, or String

        // Dont keep a list ... just the currently selected item

        removeAllItems(); // hides the popup if visible

        addItem(item);

        super.setSelectedItem(item);

    }

    public void updateUI() {

        ComboBoxUI cui = (ComboBoxUI) UIManager.getUI(this);

        if (cui instanceof MetalComboBoxUI) {

            cui = new MetalDateComboBoxUI();

        } else if (cui instanceof MotifComboBoxUI) {

            cui = new MotifDateComboBoxUI();

        } else if (cui instanceof WindowsComboBoxUI) {

            cui = new WindowsDateComboBoxUI();

        }

        setUI(cui);

    }

    // Inner classes are used purely to keep DateComboBox component in one file

    //////////////////////////////////////////////////////////////

    // UI Inner classes -- one for each supported Look and Feel

    //////////////////////////////////////////////////////////////

    class MetalDateComboBoxUI extends MetalComboBoxUI {

        protected ComboPopup createPopup() {

            return new DatePopup( comboBox );

        }

    }

    class WindowsDateComboBoxUI extends WindowsComboBoxUI {

        protected ComboPopup createPopup() {

            return new DatePopup( comboBox );

        }

    }

    class MotifDateComboBoxUI extends MotifComboBoxUI {

      private static final long serialVersionUID = 5669807256653124411L;

        protected ComboPopup createPopup() {

            return new DatePopup( comboBox );

        }

    }

    //////////////////////////////////////////////////////////////

    // DatePopup inner class

    //////////////////////////////////////////////////////////////

    class DatePopup implements ComboPopup, MouseMotionListener,

                               MouseListener, KeyListener, PopupMenuListener {

        protected JComboBox comboBox;

        protected Calendar calendar;

        protected JPopupMenu popup;

        protected JLabel monthLabel;

        protected JPanel days = null;

        protected SimpleDateFormat monthFormat = new SimpleDateFormat("MMM yyyy");

        protected Color selectedBackground;

        protected Color selectedForeground;

        protected Color background;

        protected Color foreground;

        public DatePopup(JComboBox comboBox) {

            this.comboBox = comboBox;

            calendar = Calendar.getInstance();

            // check Look and Feel

            background = UIManager.getColor("ComboBox.background");

            foreground = UIManager.getColor("ComboBox.foreground");

            selectedBackground = UIManager.getColor("ComboBox.selectionBackground");

            selectedForeground = UIManager.getColor("ComboBox.selectionForeground");

            initializePopup();

        }

        //========================================

        // begin ComboPopup method implementations

        //

        public void show() {

            try {

                // if setSelectedItem() was called with a valid date, adjust the calendar

                calendar.setTime( dateFormat.parse( comboBox.getSelectedItem().toString() ) );

            } catch (Exception e) {}

            updatePopup();

            popup.show(comboBox, 0, comboBox.getHeight());

        }

        public void hide() {

            popup.setVisible(false);

        }

        protected JList list = new JList();

        public JList getList() {

            return list;

        }

        public MouseListener getMouseListener() {

            return this;

        }

        public MouseMotionListener getMouseMotionListener() {

            return this;

        }

        public KeyListener getKeyListener() {

            return this;

        }

        public boolean isVisible() {

            return popup.isVisible();

        }

        public void uninstallingUI() {

            popup.removePopupMenuListener(this);

        }

        //

        // end ComboPopup method implementations

        //======================================

        //===================================================================

        // begin Event Listeners

        //

        // MouseListener

        public void mousePressed( MouseEvent e ) {}

        public void mouseReleased( MouseEvent e ) {}

        // something else registered for MousePressed

        public void mouseClicked(MouseEvent e) {

            if ( !SwingUtilities.isLeftMouseButton(e) )

                return;

            if ( !comboBox.isEnabled() )

                return;

            if ( comboBox.isEditable() ) {

                comboBox.getEditor().getEditorComponent().requestFocus();

            } else {

                comboBox.requestFocus();

            }

            togglePopup();

        }

        protected boolean mouseInside = false;

        public void mouseEntered(MouseEvent e) {

            mouseInside = true;

        }

        public void mouseExited(MouseEvent e) {

            mouseInside = false;

        }

        // MouseMotionListener

        public void mouseDragged(MouseEvent e) {}

        public void mouseMoved(MouseEvent e) {}

        // KeyListener

        public void keyPressed(KeyEvent e) {}

        public void keyTyped(KeyEvent e) {}

        public void keyReleased( KeyEvent e ) {

            if ( e.getKeyCode() == KeyEvent.VK_SPACE ||

                 e.getKeyCode() == KeyEvent.VK_ENTER ) {

                togglePopup();

            }

        }

        /**

         * Variables hideNext and mouseInside are used to

         * hide the popupMenu by clicking the mouse in the JComboBox

         */

        public void popupMenuCanceled(PopupMenuEvent e) {}

        protected boolean hideNext = false;

        public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {

            hideNext = mouseInside;

        }

        public void popupMenuWillBecomeVisible(PopupMenuEvent e) {}

        //

        // end Event Listeners

        //=================================================================

        //===================================================================

        // begin Utility methods

        //

        protected void togglePopup() {

            if ( isVisible() || hideNext ) {

                hide();

            } else {

                show();

            }

            hideNext = false;

        }

        //

        // end Utility methods

        //=================================================================

        // Note *** did not use JButton because Popup closes when pressed

        protected JLabel createUpdateButton(final int field, final int amount) {

            final JLabel label = new JLabel();

            final Border selectedBorder = new EtchedBorder();

            final Border unselectedBorder = new EmptyBorder(selectedBorder.getBorderInsets(new JLabel()));

            label.setBorder(unselectedBorder);

            label.setForeground(foreground);

            label.addMouseListener(new MouseAdapter() {

                    public void mouseReleased(MouseEvent e) {

                        calendar.add(field, amount);

                        updatePopup();

                    }

                    public void mouseEntered(MouseEvent e) {

                        label.setBorder(selectedBorder);

                    }

                    public void mouseExited(MouseEvent e) {

                        label.setBorder(unselectedBorder);

                    }

                });

            return label;

        }

        protected void initializePopup() {

            JPanel header = new JPanel(); // used Box, but it wasn't Opaque

            header.setLayout(new BoxLayout(header, BoxLayout.X_AXIS));

            header.setBackground(background);

            header.setOpaque(true);

            JLabel label;

            label = createUpdateButton(Calendar.YEAR, -1);

            label.setText("<<");

            label.setToolTipText(resource.getString("datecombobox.prevyear"));

            header.add(Box.createHorizontalStrut(12));

            header.add(label);

            header.add(Box.createHorizontalStrut(12));

            label = createUpdateButton(Calendar.MONTH, -1);

            label.setText("<");

            label.setToolTipText(resource.getString("datecombobox.prevmonth"));

            header.add(label);

            monthLabel = new JLabel("", JLabel.CENTER);

            monthLabel.setForeground(foreground);

            header.add(Box.createHorizontalGlue());

            header.add(monthLabel);

            header.add(Box.createHorizontalGlue());

            label = createUpdateButton(Calendar.MONTH, 1);

            label.setText(">");

            label.setToolTipText(resource.getString("datecombobox.nextmonth"));

            header.add(label);

            label = createUpdateButton(Calendar.YEAR, 1);

            label.setText(">>");

            label.setToolTipText(resource.getString("datecombobox.nextyear"));

            header.add(Box.createHorizontalStrut(12));

            header.add(label);

            header.add(Box.createHorizontalStrut(12));

            popup = new JPopupMenu();

            popup.setBorder(BorderFactory.createLineBorder(Color.black));

            popup.setLayout(new BorderLayout());

            popup.setBackground(background);

            popup.addPopupMenuListener(this);

            popup.add(BorderLayout.NORTH, header);

        }

        // update the Popup when either the month or the year of the calendar has been changed

        protected void updatePopup() {

            monthLabel.setText( monthFormat.format(calendar.getTime()) );

            if (days != null) {

                popup.remove(days);

            }

            days = new JPanel(new GridLayout(0, 7));

            days.setBackground(background);

            days.setOpaque(true);

            Calendar setupCalendar = (Calendar) calendar.clone();

            setupCalendar.set(Calendar.DAY_OF_WEEK, setupCalendar.getFirstDayOfWeek());

            for (int i = 0; i < 7; i++) {

                int dayInt = setupCalendar.get(Calendar.DAY_OF_WEEK);

                JLabel label = new JLabel();

                label.setHorizontalAlignment(JLabel.CENTER);

                label.setForeground(foreground);

                if (dayInt == Calendar.SUNDAY) {

                    label.setText(resource.getString("datecombobox.sun"));

                } else if (dayInt == Calendar.MONDAY) {

                    label.setText(resource.getString("datecombobox.mon"));

                } else if (dayInt == Calendar.TUESDAY) {

                    label.setText(resource.getString("datecombobox.tue"));

                } else if (dayInt == Calendar.WEDNESDAY) {

                    label.setText(resource.getString("datecombobox.wed"));

                } else if (dayInt == Calendar.THURSDAY) {

                    label.setText(resource.getString("datecombobox.thu"));

                } else if (dayInt == Calendar.FRIDAY) {

                    label.setText(resource.getString("datecombobox.fri"));

                } else if (dayInt == Calendar.SATURDAY){

                    label.setText(resource.getString("datecombobox.sat"));

                }

                days.add(label);

                setupCalendar.roll(Calendar.DAY_OF_WEEK, true);

            }

            setupCalendar = (Calendar) calendar.clone();

            setupCalendar.set(Calendar.DAY_OF_MONTH, 1);

            int first = setupCalendar.get(Calendar.DAY_OF_WEEK);

            for (int i = 0; i < (first - 1); i++) {

                days.add(new JLabel(""));

            }

            for (int i = 1; i <= setupCalendar.getActualMaximum(Calendar.DAY_OF_MONTH); i++) {

                final int day = i;

                final JLabel label = new JLabel(String.valueOf(day));

                label.setHorizontalAlignment(JLabel.CENTER);

                label.setForeground(foreground);

                label.addMouseListener(new MouseListener() {

                        public void mousePressed(MouseEvent e) {}

                        public void mouseClicked(MouseEvent e) {}

                        public void mouseReleased(MouseEvent e) {

                            label.setOpaque(false);

                            label.setBackground(background);

                            label.setForeground(foreground);

                            calendar.set(Calendar.DAY_OF_MONTH, day);

                            comboBox.setSelectedItem(dateFormat.format(calendar.getTime()));

                            // hide();

                            // hide is called with setSelectedItem() ... removeAll()

                            comboBox.requestFocus();

                        }

                        public void mouseEntered(MouseEvent e) {

                            label.setOpaque(true);

                            label.setBackground(selectedBackground);

                            label.setForeground(selectedForeground);

                        }

                        public void mouseExited(MouseEvent e) {

                            label.setOpaque(false);

                            label.setBackground(background);

                            label.setForeground(foreground);

                        }

                    });

                days.add(label);

            }

            popup.add(BorderLayout.CENTER, days);

            popup.pack();

        }

    }

    //////////////////////////////////////////////////////////////

    // This is only included to provide a sample GUI

    //////////////////////////////////////////////////////////////

    public static void main(String args[]) {

        JFrame f = new JFrame();

        Container c = f.getContentPane();

        c.setLayout(new FlowLayout());

        c.add(new JLabel("Date 1:"));

        c.add(new DateComboBox());

        c.add(new JLabel("Date 2:"));

        DateComboBox dcb = new DateComboBox();

        dcb.setEditable(true);

        c.add(dcb);

        f.addWindowListener(new WindowAdapter() {

                public void windowClosing(WindowEvent e) {

                    System.exit(0);

                }

            });

        f.setSize(500, 200);

        f.setVisible(true);

    }

}