ca.sqlpower.wabit.swingui.report.selectors.FancyTextBoxSelectorField.java Source code

Introduction

Here is the source code for ca.sqlpower.wabit.swingui.report.selectors.FancyTextBoxSelectorField.java

Source

/*
 * Copyright (c) 2010, SQL Power Group Inc.
 *
 * This file is part of Wabit.
 *
 * Wabit is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Wabit 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>. 
 */

package ca.sqlpower.wabit.swingui.report.selectors;

import java.awt.Color;
import java.awt.Font;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

import javax.swing.JTextField;
import javax.swing.SwingUtilities;

import org.apache.commons.lang.ObjectUtils;

import ca.sqlpower.object.AbstractPoolingSPListener;
import ca.sqlpower.object.SPListener;
import ca.sqlpower.wabit.report.selectors.TextBoxSelector;

public class FancyTextBoxSelectorField extends JTextField implements SelectorComponent {

    private FocusListener focusListener = new FocusListener() {

        public void focusLost(FocusEvent e) {

            String newText = getText().trim();

            if (newText.length() == 0 || ObjectUtils.equals(newText, selector.getDefaultValue())) {
                selector.setSelectedValue(null);
                setText(String.valueOf(selector.getDefaultValue()));
                setForeground(Color.GRAY);
                setFont(getFont().deriveFont(Font.ITALIC));
            } else {
                selector.setSelectedValue(newText);
                setForeground(Color.BLACK);
                setFont(getFont().deriveFont(Font.PLAIN));
            }
            SwingUtilities.invokeLater(refreshRoutine);
        }

        public void focusGained(FocusEvent e) {
            setForeground(Color.BLACK);
            setFont(getFont().deriveFont(Font.PLAIN));
            if (ObjectUtils.equals(getText(), selector.getDefaultValue())) {
                setText("");
            }
        }
    };

    private final TextBoxSelector selector;

    private final Runnable refreshRoutine;

    private SPListener spListener = new AbstractPoolingSPListener() {
        protected void propertyChangeImpl(final java.beans.PropertyChangeEvent evt) {

            String currentText = getText().trim();

            if (currentText.length() == 0
                    || ObjectUtils.equals(currentText, evt.getOldValue() == null ? "" : evt.getOldValue())) {

                setText(evt.getNewValue() == null ? "" : evt.getNewValue().toString());
                setForeground(Color.GRAY);
                setFont(getFont().deriveFont(Font.ITALIC));
                SwingUtilities.invokeLater(refreshRoutine);

            }

        };
    };

    private KeyListener enterKeyListener = new KeyListener() {
        public void keyTyped(KeyEvent e) {
            if (e.getKeyChar() == KeyEvent.VK_ENTER) {
                FancyTextBoxSelectorField.this.transferFocus();
            }
        }

        public void keyReleased(KeyEvent e) {
            // not interested
        }

        public void keyPressed(KeyEvent e) {
            // not interested
        }
    };

    public FancyTextBoxSelectorField(final TextBoxSelector selector, Runnable refreshRoutine) {

        this.selector = selector;
        this.refreshRoutine = refreshRoutine;
        this.addFocusListener(focusListener);
        this.addKeyListener(this.enterKeyListener);
        this.selector.addSPListener(spListener);

        setText(selector.getCurrentValue() == null ? null : selector.getCurrentValue().toString());

        if (getText().length() == 0 || ObjectUtils.equals(getText(), selector.getDefaultValue())) {
            setText(selector.getDefaultValue() == null ? null : selector.getDefaultValue().toString());
            setForeground(Color.GRAY);
            setFont(getFont().deriveFont(Font.ITALIC));
        } else {
            setForeground(Color.BLACK);
            setFont(getFont().deriveFont(Font.PLAIN));
        }
    }

    public void cleanup() {
        this.selector.removeSPListener(spListener);
    }
}