/* * NachoCalendar * * Project Info: http://nachocalendar.sf.net * * This library 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 2.1 of the License, or (at your option) any later version. * * This library 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 library; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * Changes * ------- * * 2005-01-09 Cleanups * 2004-12-11 Fixed setYear, now accepts years from 0 to 2100 * 2004-10-22 setEnabled(boolean b) overriden, now works * 2004-10-18 Changed the formatter for a MaskFormatter * 2004-10-01 Checked with checkstyle * 2004-9-3 Fixed borders * * ------- * YearScroller.java * * Created on August 12, 2004, 6:47 PM */ package net.sf.nachocalendar.components; import java.awt.GridBagConstraints; import java.util.Calendar; import javax.swing.Icon; import javax.swing.JButton; import javax.swing.JFormattedTextField; import javax.swing.SwingConstants; import javax.swing.border.Border; import javax.swing.event.ChangeEvent; import javax.swing.text.MaskFormatter; /** * Component used to change the current year. It extends from JComboBox * and has two arrows for unitary changes. It fires a ChangeEvent * when the year is changed. * @author Ignacio Merani */ public class YearScroller extends javax.swing.JPanel { private JButton bNext; private JButton bPrevious; private JFormattedTextField tYear; /** Creates new form YearScroller. */ public YearScroller() { initComponents(); Calendar cal = Calendar.getInstance(); tYear.setValue(new Integer(cal.get(Calendar.YEAR))); Border border = tYear.getBorder(); tYear.setBorder(null); setBorder(border); } /** * This method is called from within the constructor to initialize the form. * WARNING: Do NOT modify this code. The content of this method is always * regenerated by the Form Editor. */ private void initComponents() { GridBagConstraints gridBagConstraints; bPrevious = new ArrowButton(SwingConstants.WEST); try { tYear = new javax.swing.JFormattedTextField(new MaskFormatter("####")); } catch (Exception e) { e.printStackTrace(); } bNext = new ArrowButton(SwingConstants.EAST); FormListener formListener = new FormListener(); setLayout(new java.awt.GridBagLayout()); bPrevious.addActionListener(formListener); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH; gridBagConstraints.weighty = 1.0; add(bPrevious, gridBagConstraints); tYear.setColumns(4); tYear.setHorizontalAlignment(SwingConstants.CENTER); tYear.addActionListener(formListener); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH; gridBagConstraints.weightx = 1.0; gridBagConstraints.weighty = 1.0; add(tYear, gridBagConstraints); bNext.addActionListener(formListener); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH; gridBagConstraints.weighty = 1.0; add(bNext, gridBagConstraints); } private class FormListener implements java.awt.event.ActionListener { public void actionPerformed(java.awt.event.ActionEvent evt) { if (evt.getSource() == bPrevious) { YearScroller.this.bPreviousActionPerformed(evt); } else if (evt.getSource() == tYear) { YearScroller.this.tYearActionPerformed(evt); } else if (evt.getSource() == bNext) { YearScroller.this.bNextActionPerformed(evt); } } } private void tYearActionPerformed(java.awt.event.ActionEvent evt) { fireChangeListenerStateChanged(new ChangeEvent(this)); } private void bNextActionPerformed(java.awt.event.ActionEvent evt) { setYear(getYear() + 1); fireChangeListenerStateChanged(new ChangeEvent(this)); } private void bPreviousActionPerformed(java.awt.event.ActionEvent evt) { setYear(getYear() - 1); fireChangeListenerStateChanged(new ChangeEvent(this)); } /** * Changes the icon for the Next button. * @param icon new Icon or null to show the default arrow */ public void setNextIcon(Icon icon) { bNext.setIcon(icon); } /** * Changes the icon for the Previous button. * @param icon new Icon or null to show the default arrow */ public void setPreviousIcon(Icon icon) { bPrevious.setIcon(icon); } /** * Changes the text of the Next button. * @param text new text or null to show the default arrow */ public void setNextText(String text) { bNext.setText(text); } /** * Changes the text of the Previous button. * @param text new text or null to show the default arrow */ public void setPreviousText(String text) { bPrevious.setText(text); } /** * Returns the current selected year. * @return current year */ public int getYear() { return ((Number) tYear.getValue()).intValue(); } /** * Changes the current selected year. * @param year current year */ public void setYear(int year) { if ((year > 0) && (year < 2100)) { tYear.setValue(new Integer(year)); } } /** * Registers ChangeListener to receive events. * * @param listener * The listener to register. */ public synchronized void addChangeListener( javax.swing.event.ChangeListener listener) { if (changeListenerList == null) { changeListenerList = new java.util.ArrayList(); } changeListenerList.add(listener); } /** * Removes ChangeListener from the list of listeners. * * @param listener * The listener to remove. */ public synchronized void removeChangeListener( javax.swing.event.ChangeListener listener) { if (changeListenerList != null) { changeListenerList.remove(listener); } } /** * Notifies all registered listeners about the event. * * @param event * The event to be fired */ private void fireChangeListenerStateChanged( javax.swing.event.ChangeEvent event) { java.util.ArrayList list; synchronized (this) { if (changeListenerList == null) { return; } list = (java.util.ArrayList) changeListenerList.clone(); } for (int i = 0; i < list.size(); i++) { ((javax.swing.event.ChangeListener) list.get(i)) .stateChanged(event); } } /** * Enables or disables the component. * @param b true for enabling */ public void setEnabled(boolean b) { bNext.setEnabled(b); bPrevious.setEnabled(b); tYear.setEnabled(b); } /** * Getter for enabled property. * @return true if it's enabled */ public boolean isEnabled() { return tYear.isEnabled(); } /** * Utility field holding list of ChangeListeners. */ private transient java.util.ArrayList changeListenerList; }