wizardprocesspanel.java

eq跨平台查询工具源码 eq跨平台查询工具源码

/*
 * WizardProcessPanel.java
 *
 * Copyright (C) 2002, 2003, 2004, 2005, 2006 Takis Diakoumis
 *
 * This program 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 2
 * of the License, or any later version.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */


package org.underworldlabs.swing.wizard;

import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.LayoutManager;
import java.awt.Paint;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.border.Border;
import org.underworldlabs.swing.plaf.UIUtils;

/* ----------------------------------------------------------
 * CVS NOTE: Changes to the CVS repository prior to the 
 *           release of version 3.0.0beta1 has meant a 
 *           resetting of CVS revision numbers.
 * ----------------------------------------------------------
 */

/**
 * Base wizard process panel.
 *
 * @author   Takis Diakoumis
 * @version  $Revision: 1.6 $
 * @date     $Date: 2006/07/15 12:51:31 $
 */
public abstract class WizardProcessPanel extends JPanel 
                                         implements ActionListener {
    
    /** the selection model */
    private WizardProcessModel model;
    
    /** the left panel */
    private JPanel leftPanel;
    
    /** the right panel */
    private JPanel rightPanel;
    
    /** the base content panel */
    private JPanel contentPanel;
    
    /** the right panel layout */
    private CardLayout cardLayout;
    
    /** the next button */
    private JButton nextButton;

    /** the previous button */
    private JButton backButton;

    /** the cancel button */
    private JButton cancelButton;

    /** the help button */
    protected JButton helpButton;

    /** the title label */
    private JLabel titleLabel;
    
    /** the step label list */
    private List<JLabel> stepLabels;
    
    /** the normal label font */
    private Font labelFont;

    /** the selected label font */
    private Font selectedLabelFont;

    /** whether buttons are enabled */
    private boolean buttonsEnabled;
    
    /** Creates a new instance of WizardProcessPanel */
    public WizardProcessPanel() {
        this(null);
    }
    
    /** Creates a new instance of WizardProcessPanel */
    public WizardProcessPanel(WizardProcessModel model) {
        super(new BorderLayout());
        this.model = model;
        try {
            init();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    private void init() throws Exception {
        buttonsEnabled = true;
        Border labelBorder = BorderFactory.createMatteBorder(0, 0, 1, 0, Color.BLACK);

        // setup the title label and right panel
        cardLayout = new CardLayout();
        rightPanel = new JPanel(cardLayout);

        titleLabel = new JLabel("", JLabel.LEFT);
        titleLabel.setBorder(labelBorder);
        
        // store the fonts
        Font font = titleLabel.getFont();
        selectedLabelFont = font.deriveFont(Font.BOLD);
        labelFont = font.deriveFont(Font.PLAIN);

        titleLabel.setFont(selectedLabelFont);
        
        JPanel rightContentPanel = new JPanel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.gridy++;
        gbc.gridx = 0;
        gbc.insets.top = 5;
        gbc.insets.left = 5;
        gbc.insets.right = 5;
        gbc.insets.bottom = 0;
        gbc.weightx = 1.0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        rightContentPanel.add(titleLabel, gbc);
        gbc.gridy++;
        gbc.weighty = 1.0;
        gbc.insets.bottom = 5;
        gbc.fill = GridBagConstraints.BOTH;
        rightContentPanel.add(rightPanel, gbc);
        
        // setup the left panel
        JLabel stepsLabel = new JLabel("Steps", JLabel.LEFT);
        stepsLabel.setOpaque(false);
        stepsLabel.setBorder(labelBorder);
        stepsLabel.setFont(selectedLabelFont);
        
        leftPanel = new JPanel();
        leftPanel.setOpaque(false);
        leftPanel.setPreferredSize(new Dimension(170, getHeight()));
        leftPanel.setLayout(new BoxLayout(leftPanel, BoxLayout.Y_AXIS));

        JPanel leftContentPanel = new StepListPanel(new GridBagLayout());
        gbc.gridy = 0;
        gbc.weighty = 0;
        gbc.insets.bottom = 0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        leftContentPanel.add(stepsLabel, gbc);
        gbc.gridy++;
        gbc.weighty = 1.0;
        gbc.insets.bottom = 5;
        gbc.fill = GridBagConstraints.BOTH;
        leftContentPanel.add(leftPanel, gbc);
        
        // add the panels to the base
        JPanel base = new JPanel(new BorderLayout());
        base.add(leftContentPanel, BorderLayout.WEST);
        base.add(rightContentPanel, BorderLayout.CENTER);
        add(base, BorderLayout.CENTER);

        // setup the button panel
        nextButton = new JButton("Next");
        nextButton.setMnemonic('N');

        backButton = new JButton("Back");
        backButton.setMnemonic('B');

        cancelButton = new JButton("Cancel");
        cancelButton.setMnemonic('C');

        nextButton.addActionListener(this);
        backButton.addActionListener(this);
        cancelButton.addActionListener(this);
        
        helpButton = new JButton("Help");
        helpButton.setMnemonic('H');

        Dimension btnDim = new Dimension(75,25);
        nextButton.setPreferredSize(btnDim);
        backButton.setPreferredSize(btnDim);
        cancelButton.setPreferredSize(btnDim);
        helpButton.setPreferredSize(btnDim);
        
        Insets buttonInsets = new Insets(2, 2, 2, 2);
        nextButton.setMargin(buttonInsets);
        backButton.setMargin(buttonInsets);
        cancelButton.setMargin(buttonInsets);
        
        backButton.setEnabled(false);
        
        JPanel buttonPanel = new JPanel(new GridBagLayout());
        gbc.gridy = 0;
        gbc.gridx = 0;
        gbc.insets.left = 5;
        gbc.insets.top = 7;
        gbc.insets.bottom = 5;
        gbc.insets.right = 0;
        gbc.fill = GridBagConstraints.NONE;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.weighty = 0;
        gbc.weightx = 0.5;
        buttonPanel.add(helpButton, gbc);
        gbc.anchor = GridBagConstraints.EAST;
        gbc.gridx = 1;
        gbc.weightx = 0;
        gbc.insets.left = 7;
        buttonPanel.add(backButton, gbc);
        gbc.gridx = 2;
        buttonPanel.add(nextButton, gbc);
        gbc.gridx = 3;
        gbc.insets.right = 5;
        buttonPanel.add(cancelButton, gbc);

        // add a border to the button panel
        buttonPanel.setBorder(
                BorderFactory.createMatteBorder(1, 0, 0, 0, 
                        UIManager.getColor("controlDkShadow")));
        add(buttonPanel, BorderLayout.SOUTH);
        
    }

    protected void prepare() {
        
        // setup the step labels
        String[] steps = model.getSteps();
        stepLabels = new ArrayList<JLabel>(steps.length);
        for (int i = 0; i < steps.length; i++) {
            JLabel label = new WizardStepLabel(i + 1, steps[i]);
            label.setFont(labelFont);
            leftPanel.add(label);
            stepLabels.add(label);
        }

        // prepare the first panel
        setTitleLabelText(model.getTitle(0));
        rightPanel.add(model.getPanelAt(0), String.valueOf(0));
        cardLayout.first(rightPanel);
        setSelectedStep(0);
    }
    
    /**
     * Reformats the label display at the specified index.
     *
     * @param index - the label index
     */
    protected void setSelectedStep(int index) {
        for (int i = 0, n = stepLabels.size(); i < n; i++) {
            JLabel label = stepLabels.get(i);
            if (i != index) {
                label.setFont(labelFont);
            } else {
                label.setFont(selectedLabelFont);
            }
        }
    }
    
    /**
     * Sets the action for the help button to that specified.
     *
     * @param a - the help action to be applied