Application: gvSIG desktop » Library: org.gvsig.tools

import java.awt.Color;

import javax.swing.event.DocumentEvent;

import javax.swing.event.DocumentListener;

import javax.swing.text.Document;

public class DatePickerControllerImpl

        extends AbstractPickerController<Date>

        implements DatePickerController {

  private final JButton btnDate;

  private final JTextComponent txtDate;

  private JCalendar jcalendar;

  private DateFormat df;

  private static final Logger LOG = LoggerFactory.getLogger(DatePickerControllerImpl.class);

  public static void selfRegister() {

    URL imageResource = DatePickerControllerImpl.class.getClassLoader().getResource("org/gvsig/tools/swing/picker/picker-date.png");

    if (imageResource != null) {

      IconThemeManager iconThemeManager = ToolsSwingLocator.getIconThemeManager();

      IconTheme theme = iconThemeManager.getCurrent();

      ImageIcon icon = new ImageIcon(imageResource);

      theme.registerDefault("tools", "picker", "picker-date", icon, imageResource);

  }

  private final Document document;

  private final DocumentListener documentListener;

  private final Color colorOk;

  private final Color colorErr;

  private String emptyValue;

  public DatePickerControllerImpl(JTextComponent txtDate, JButton btnDate) {

    this.txtDate = txtDate;

    if (btnDate == null) {

      btnDate = new JButton();

    }

    ToolsSwingLocator.getToolsSwingManager().addClearButton(txtDate, (ActionEvent e) -> {

      set(null);

    });

    this.df = DateFormat.getDateInstance(DateFormat.SHORT, Locale.getDefault());

    this.df.setLenient(false);

    if (this.txtDate instanceof JFormattedTextField) {

      JFormattedTextField ftf = (JFormattedTextField) this.txtDate;

      if (df instanceof SimpleDateFormat) {

        try {

          SimpleDateFormat sdf = (SimpleDateFormat) this.df;

          String s = sdf.toPattern(); 

          if( !s.contains("yyyy") ) {

            if( s.contains("yy") ) {

              s = s.replace("yy", "yyyy");

            } else if( s.contains("y") ) {

              s = s.replace("y", "yyyy");

          }

          if( !s.contains("dd") ) {

            if( s.contains("d") ) {

              s = s.replace("d", "dd");

            }

          }

          if( !s.contains("MM") ) {

            if( s.contains("M") ) {

              s = s.replace("M", "MM");

            }

          }

          sdf.applyPattern(s);

          s = s.replace("y", "#");

          s = s.replace("d", "#");

          s = s.replace("M", "#");

          MaskFormatter mask = new MaskFormatter(s);

          mask.setPlaceholderCharacter('_');

          this.emptyValue = s.replace("#","_");

          mask.setAllowsInvalid(false);

          mask.install(ftf);

        } catch (Exception ex) {

          LOG.warn("Not been able to create mask", ex);

      }

    this.colorOk = this.txtDate.getBackground();

    this.colorErr = new Color(255,225,232);

    this.btnDate = btnDate;

    this.txtDate.setAlignmentX(RIGHT_ALIGNMENT);

    this.txtDate.setEditable(true);

    this.document = this.txtDate.getDocument();

    this.documentListener = new DocumentListener() {

      @Override

      public void insertUpdate(DocumentEvent e) {

        checkContents();

      }

      @Override

      public void removeUpdate(DocumentEvent e) {

        checkContents();

      @Override

      public void changedUpdate(DocumentEvent e) {

        checkContents();

    };

    document.addDocumentListener(this.documentListener);

    this.btnDate.setIcon(this.getIcon("picker-date"));

    if (this.btnDate.getText().equals("...")) {

      this.btnDate.setText("");

    this.btnDate.addActionListener((ActionEvent e) -> {

      doShowCalendar();

    });

  }

  @Override

  public void uninstall() {

  }

  private String getText() {

    String s = this.txtDate.getText();

    if( this.emptyValue!=null && this.emptyValue.equals(s) ) {

      return "";

    s = s.replace("_", "");

    return s;

  }

  private void checkContents() {

    if( this.isValid() ) {

      this.txtDate.setBackground(colorOk);

    } else {

      this.txtDate.setBackground(colorErr);

  }

  @Override

  public boolean isValid() {

    if (StringUtils.isBlank(this.getText())) {

      return true;

    try {

      Date date = this.df.parse(this.getText());

      return true;

    } catch (ParseException ex) {

      return false;

    }

  }

  @Override

  public boolean isEmpty() {

    if (StringUtils.isBlank(this.getText())) {

      return true;

    try {

      Date date = this.df.parse(this.getText());

      return false;

    } catch (ParseException ex) {

      return true;

    }

  }

  @Override

  public Date get() {

    if (StringUtils.isBlank(this.getText())) {

      return null;

    try {

      Date date = this.df.parse(this.getText());

      return date;

    } catch (ParseException ex) {

      return null;

    }

  }

  @Override

  public void set(Date date) {

    if( date == null ) {

      this.txtDate.setText("");

      return;

    this.txtDate.setText(this.df.format(date));

  }

  @Override

  public void setEnabled(boolean enabled) {

    this.btnDate.setEnabled(enabled);

    this.txtDate.setEnabled(enabled);

  }

  @Override

  public boolean isEnabled() {

    return this.btnDate.isEnabled();

  }

  private void doShowCalendar() {

    if (!this.isEditable()) {

      return;

    JPopupMenu menu = new JPopupMenu();

    menu.add(getJCalendar());

    Date v = this.get();

    if (v != null) {

      getJCalendar().setDate(v);

    }

    menu.show(this.txtDate, 0, this.txtDate.getY() + this.txtDate.getPreferredSize().height);

  }

  protected JCalendar getJCalendar() {

    if (this.jcalendar == null) {

      this.jcalendar = new JCalendar();

      this.jcalendar.addDateListener((DateEvent arg0) -> {

        set(getJCalendar().getDate());

        fireChangeEvent();

      });

    return (JCalendar) this.jcalendar;

  }

  @Override

  public void coerceAndSet(Object value) {

    this.set((Date) this.coerce(DataTypes.DATE, value, new Date()));

  }