/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License (the "License").

 * You may not use this file except in compliance with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.

 */

package com.oracle.solaris.vp.util.swing.glass;

import java.awt.*;

import javax.swing.*;

import javax.swing.border.*;

import org.jdesktop.animation.timing.Animator;

import com.oracle.solaris.vp.util.misc.finder.Finder;

import com.oracle.solaris.vp.util.swing.*;

@SuppressWarnings({"serial"})

public class BusyGlassPane extends BlockingGlassPane {

    //

    // Static data

    //

    private static final int _DELAY = 2000;

    private static final String _MESSAGE = Finder.getString("busy.message");

    //

    // Instance data

    //

    private String message;

    private JProgressBar progressBar;

    private WrappingText messageLabel;

    private FadablePanel fadePanel;

    private SettingsPanel mainPanel;

    private JButton[] buttons;

    private Action[] actions;

    //

    // Constructors

    //

    public BusyGlassPane() {

	progressBar = new JProgressBar();

	progressBar.setIndeterminate(true);

	progressBar.setOpaque(false);

	progressBar.setBorderPainted(false);

	// A WrappingText must be used here instead of a FlowTextArea because

	// the latter requires a pack() before it can correctly return its

	// preferred size (thus two pack()s are needed for it to display

	// at the correct size).

	messageLabel = new WrappingText();

	createMainPanel();

	JPanel shadowPanel = new ShadowPanel();

	shadowPanel.setOpaque(false);

	shadowPanel.setLayout(new BorderLayout());

	shadowPanel.add(mainPanel, BorderLayout.CENTER);

	int gap = GUIUtil.getGap();

	Border border = BorderFactory.createEmptyBorder(gap, gap, gap, gap);

	shadowPanel.setBorder(border);

	fadePanel = new FadablePanel(shadowPanel);

	fadePanel.setSyncFadeWithVisibility(true);

	setLayout(new GridBagLayout());

	add(fadePanel);

	reset();

    }

    //

    // SimpleGlassPane methods

    //

    @Override

    public void componentHidden() {

	reset();

    }

    //

    // BusyGlassPane methods

    //

    public Action[] getActions() {

	return actions;

    }

    public int getDelay() {

	return fadePanel.getAnimator().getStartDelay();

    }

    public String getMessage() {

	return message;

    }

    public JProgressBar getProgressBar() {

	return progressBar;

    }

    protected void reset() {

	setActions();

	setDelay(_DELAY);

	setMessage(null);

	progressBar.setIndeterminate(true);

	fadePanel.setFaded(true, false);

    }

    public void setActions(Action... actions) {

	SettingsButtonBar buttonBar = mainPanel.getButtonBar();

	if (buttons != null) {

	    for (JButton button : buttons) {

		buttonBar.remove(button);

	    }

	}

	buttons = new JButton[actions.length];

	for (int i = 0; i < actions.length; i++) {

	    buttons[i] = new JButton(actions[i]);

	    buttonBar.add(buttons[i]);

	}

	this.actions = actions;

    }

    public void setDelay(int delay) {

	Animator animator = fadePanel.getAnimator();

	animator.stop();

	animator.setStartDelay(delay);

    }

    public void setMessage(String message) {

	this.message = message;

	String m = message == null ? _MESSAGE : message;

	messageLabel.setText(m);

	messageLabel.setPreferredWidthInColumns(25);

	messageLabel.setVisible(m != null && !m.isEmpty());

    }

    //

    // Private methods

    //

    private void createMainPanel() {

	// Override paintComponent and set non-opaque to avoid bug wherein the

	// progress bar appears well before the rest of the panel has faded in

	mainPanel = new SettingsPanel() {

	    @Override

	    public void paintComponent(Graphics g) {

		int w = getWidth();

		int h = getHeight();

		g.setColor(getBackground());

		g.fillRect(0, 0, w, h);

	    }

	};

	mainPanel.setOpaque(false);

	mainPanel.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));

	Border empty = GUIUtil.getEmptyBorder();

	Color color = ColorUtil.darker(getBackground(), .5f);

	Border compound = BorderFactory.createCompoundBorder(

	    new LineBorder(color), empty);

	compound = BorderFactory.createCompoundBorder(

	    compound, new EtchedBorder());

	compound = BorderFactory.createCompoundBorder(

	    compound, empty);

	mainPanel.setBorder(compound);

	JPanel helpPane = mainPanel.getHelpPane();

	helpPane.removeAll();

	helpPane.add(progressBar, BorderLayout.CENTER);

        mainPanel.getContentPane().add(messageLabel, BorderLayout.CENTER);

    }

}