svn-document-layout / trunk / org.gvsig.app.document.layout2.app / org.gvsig.app.document.layout2.app.mainplugin / src / main / java / org / gvsig / app / project / documents / layout / fframes / gui / numberFormat / DecimalFormatPanel.java @ 272
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package org.gvsig.app.project.documents.layout.fframes.gui.numberFormat; |
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import java.awt.BorderLayout; |
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import java.awt.event.ActionEvent; |
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import java.awt.event.ActionListener; |
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import java.text.DecimalFormat; |
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import java.text.DecimalFormatSymbols; |
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import javax.swing.JComboBox; |
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import javax.swing.JFrame; |
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import javax.swing.JLabel; |
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import org.gvsig.gui.beans.swing.GridBagLayoutPanel; |
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import org.gvsig.gui.beans.swing.JIncrementalNumberField; |
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import org.gvsig.gui.beans.swing.ValidatingTextField; |
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import org.gvsig.gui.beans.swing.ValidatingTextField.Cleaner; |
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import org.gvsig.gui.beans.swing.ValidatingTextField.Validator; |
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import org.gvsig.i18n.Messages; |
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/**
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* A panel to select the format for a decimal number. The following options are
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* offered:
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* <ul>
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* <li>The decimal separator character</li>
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* <li>The thousands separator character</li>
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* <li>The number of decimal digits. Note that this component forces the
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* maximum and minimum number of decimal digits (as defined in {@link DecimalFormat})
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* to be always equal.</li>
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* </ul>
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*
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* @author Cesar Martinez Izquierdo
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*/
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public class DecimalFormatPanel extends GridBagLayoutPanel { |
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private static final long serialVersionUID = 1L; |
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public static final String INTEGER_BASE_PATTERN = "0"; |
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public static final String INTEGER_GROUPED_BASE_PATTERN = "#,###,###,###,###,###,##0"; |
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public static final String DECIMAL_BASE_PATTERN = "#0."; |
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public static final String DECIMAL_GROUPED_BASE_PATTERN = "#,###,###,###,###,###,##0."; |
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private DecimalFormat format; |
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private CharComboBox cbDecimalSep = null; |
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private CharComboBox cbThousandsSep = null; |
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private JIncrementalNumberField tfDecimalDigits = null; |
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private JLabel lbResult = null; |
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private double testNumber = 123456789.00; |
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private static final DecimalFormatSymbols defaultLocaleSymbols = DecimalFormatSymbols.getInstance(); |
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/**
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* Creates and initializes the panel using the default format
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* for the current locale
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*/
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public DecimalFormatPanel() {
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this(new DecimalFormat()); |
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} |
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/**
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* Creates and initializes the panel using the provided
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* DecimalFormat
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*/
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public DecimalFormatPanel(DecimalFormat format) { |
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super();
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initComponents(); |
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setFormat(format); |
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} |
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/**
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* Creates and initializes the panel using the provided parameters
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*
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* @param decimalSeparator The character used to separate the decimal part
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* @param thousandsSeparator The character used to group thousands
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* @param decimalDigits The number of decimal digits to show
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* @param basePattern A base pattern used to create the DecimalFormat.
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* Usually, one of {@link #INTEGER_BASE_PATTERN},
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* {@link #INTEGER_GROUPED_BASE_PATTERN}, {@link #DECIMAL_BASE_PATTERN}
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* or {@link #DECIMAL_GROUPED_BASE_PATTERN}.
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* Any decimal digits in the pattern will be ignored (as they will be
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* included depending on the <code>decimalDigits</code> parameter). The
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* behavior of the component is undefined if a wrong pattern is provided
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*
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* @see DecimalFormat
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*/
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public DecimalFormatPanel(char decimalSeparator, char thousandsSeparator, int decimalDigits, String basePattern) { |
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super();
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initComponents(); |
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DecimalFormatSymbols sym = new DecimalFormatSymbols(); |
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sym.setDecimalSeparator(decimalSeparator); |
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sym.setGroupingSeparator(thousandsSeparator); |
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String pattern = getPattern(basePattern, decimalDigits);
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DecimalFormat f = new DecimalFormat(pattern, sym); |
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setFormat(f); |
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} |
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protected void initComponents() { |
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this.addComponent(Messages.getText("Decimal_separator"), getCbDecimalSep()); |
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this.addComponent(Messages.getText("Thousands_separator"), getCbThousandsSep()); |
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this.addComponent(Messages.getText("Decimal_digits"), getTfDecimalDigits()); |
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this.addComponent(Messages.getText("Result"), getLbTestResult()); |
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} |
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private String getPattern(String basePattern, int decimalDigits) { |
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int pos = basePattern.indexOf('.'); |
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if (pos>=0) { |
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basePattern = basePattern.substring(0, pos+1); |
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} |
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if (decimalDigits>0) { |
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return basePattern + String.format(("%1$0"+decimalDigits+"d"),0); |
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} |
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else {
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return basePattern;
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} |
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} |
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private CharComboBox getCbDecimalSep() {
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if (cbDecimalSep==null) { |
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cbDecimalSep = new CharComboBox(new String[]{".", ","}, false); |
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cbDecimalSep.addActionListener(new ActionListener() { |
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public void actionPerformed(ActionEvent e) { |
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if (e.getSource() instanceof CharComboBox) { |
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DecimalFormatPanel.this.updateFormat(e.getSource()); |
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} |
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} |
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}); |
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} |
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return cbDecimalSep;
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} |
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private CharComboBox getCbThousandsSep() {
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if (cbThousandsSep==null) { |
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cbThousandsSep = new CharComboBox(new String[]{",", ".", " "}, true); |
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cbThousandsSep.addActionListener(new ActionListener() { |
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public void actionPerformed(ActionEvent e) { |
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if (e.getSource() instanceof CharComboBox) { |
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DecimalFormatPanel.this.updateFormat(e.getSource()); |
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} |
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} |
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}); |
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} |
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return cbThousandsSep;
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} |
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protected void updateFormat(Object source) { |
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// get selected values
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String thousandsSeparator = getCbThousandsSep().getSelectedItem();
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String decimalSeparator = getCbDecimalSep().getSelectedItem();
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int decimalDigits = getTfDecimalDigits().getInteger();
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boolean b_decimalSep, b_thousandsSep;
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DecimalFormatSymbols sym = format.getDecimalFormatSymbols();
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if (decimalSeparator!=null && decimalSeparator.length()>0) { |
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sym.setDecimalSeparator(decimalSeparator.charAt(0));
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b_decimalSep = true;
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} |
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else {
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b_decimalSep = false;
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} |
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if (thousandsSeparator!=null && thousandsSeparator.length()>0) { |
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sym.setGroupingSeparator(thousandsSeparator.charAt(0));
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b_thousandsSep = true;
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} |
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else {
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b_thousandsSep = false;
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} |
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// choose the right pattern
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String pattern = null; |
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if (b_decimalSep && decimalDigits>0) { |
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if (b_thousandsSep) {
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pattern = getPattern(DECIMAL_GROUPED_BASE_PATTERN, decimalDigits); |
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} |
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else {
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pattern = getPattern(DECIMAL_BASE_PATTERN, decimalDigits); |
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} |
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} |
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else {
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if (b_thousandsSep) {
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pattern = INTEGER_GROUPED_BASE_PATTERN; |
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} |
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else {
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pattern = INTEGER_BASE_PATTERN; |
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} |
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} |
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// update the format
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this.format = new DecimalFormat(pattern, sym); |
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getLbTestResult().setText(this.format.format(testNumber));
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// set coherent options in UI
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if (source==getCbDecimalSep()) {
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if (!b_decimalSep) {
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// if no decimal separator is shown at all, we can't
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// have any decimal digit
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getTfDecimalDigits().setInteger(0);
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} |
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} |
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else {
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if (decimalDigits>0 && !b_decimalSep) { |
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selectItem(getCbDecimalSep(), String.valueOf(defaultLocaleSymbols.getDecimalSeparator()));
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} |
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} |
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} |
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private JIncrementalNumberField getTfDecimalDigits() {
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if (tfDecimalDigits==null) { |
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Cleaner cleaner = ValidatingTextField.NUMBER_CLEANER; |
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Validator validator = ValidatingTextField.INTEGER_VALIDATOR;
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tfDecimalDigits = new JIncrementalNumberField("Decimal digits", 2, validator, cleaner, 0.0d, 100.0d, 1.0); |
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tfDecimalDigits.addActionListener(new ActionListener() { |
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public void actionPerformed(ActionEvent e) { |
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DecimalFormatPanel.this.updateFormat(e.getSource()); |
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} |
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}); |
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} |
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return tfDecimalDigits;
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} |
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private JLabel getLbTestResult() { |
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if (lbResult==null) { |
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String text;
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lbResult = new JLabel(); |
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} |
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return lbResult;
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} |
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public DecimalFormat getFormat() { |
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return format;
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} |
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public void setFormat(DecimalFormat format) { |
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this.format = format;
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getTfDecimalDigits().setInteger(format.getMinimumFractionDigits()); |
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String decSep = String.valueOf(format.getDecimalFormatSymbols().getDecimalSeparator()); |
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selectItem(getCbDecimalSep(), decSep); |
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String thousandsSep = String.valueOf(format.getDecimalFormatSymbols().getGroupingSeparator()); |
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selectItem(getCbThousandsSep(), thousandsSep); |
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} |
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/**
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* Adds the provided item to the combo if it is not already present,
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* then selects it.
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*
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* @param cb
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* @param item
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* @return
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*/
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private void selectItem(JComboBox cb, String item) { |
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for (int i=0; i<cb.getItemCount(); i++) { |
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if (cb.getItemAt(i).equals(item)) {
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cb.setSelectedItem(item); |
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return;
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} |
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} |
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cb.addItem(item); |
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cb.setSelectedItem(item); |
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} |
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} |