/*

 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package javax.swing.plaf.metal;

import javax.swing.*;

import javax.swing.plaf.*;

import javax.swing.plaf.basic.*;

import java.awt.*;

/**

 * The Metal implementation of ProgressBarUI.

 * <p>

 * <strong>Warning:</strong>

 * Serialized objects of this class will not be compatible with

 * future Swing releases. The current serialization support is

 * appropriate for short term storage or RMI between applications running

 * the same version of Swing.  As of 1.4, support for long term storage

 * of all JavaBeans™

 * has been added to the <code>java.beans</code> package.

 * Please see {@link java.beans.XMLEncoder}.

 *

 * @author Michael C. Albers

 */

@SuppressWarnings("serial") // Same-version serialization only

public class MetalProgressBarUI extends BasicProgressBarUI {

    private Rectangle innards;

    private Rectangle box;

    public static ComponentUI createUI(JComponent c) {

        return new MetalProgressBarUI();

    }

    /**

     * Draws a bit of special highlighting on the progress bar.

     * The core painting is deferred to the BasicProgressBar's

     * <code>paintDeterminate</code> method.

     * @since 1.4

     */

    public void paintDeterminate(Graphics g, JComponent c) {

        super.paintDeterminate(g,c);

        if (!(g instanceof Graphics2D)) {

            return;

        }

        if (progressBar.isBorderPainted()) {

            Insets b = progressBar.getInsets(); // area for border

            int barRectWidth = progressBar.getWidth() - (b.left + b.right);

            int barRectHeight = progressBar.getHeight() - (b.top + b.bottom);

            int amountFull = getAmountFull(b, barRectWidth, barRectHeight);

            boolean isLeftToRight = MetalUtils.isLeftToRight(c);

            int startX, startY, endX, endY;

            // The progress bar border is painted according to a light source.

            // This light source is stationary and does not change when the

            // component orientation changes.

            startX = b.left;

            startY = b.top;

            endX = b.left + barRectWidth - 1;

            endY = b.top + barRectHeight - 1;

            Graphics2D g2 = (Graphics2D)g;

            g2.setStroke(new BasicStroke(1.f));

            if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {

                // Draw light line lengthwise across the progress bar.

                g2.setColor(MetalLookAndFeel.getControlShadow());

                g2.drawLine(startX, startY, endX, startY);

                if (amountFull > 0) {

                    // Draw darker lengthwise line over filled area.

                    g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());

                    if (isLeftToRight) {

                        g2.drawLine(startX, startY,

                                startX + amountFull - 1, startY);

                    } else {

                        g2.drawLine(endX, startY,

                                endX - amountFull + 1, startY);

                        if (progressBar.getPercentComplete() != 1.f) {

                            g2.setColor(MetalLookAndFeel.getControlShadow());

                        }

                    }

                }

                // Draw a line across the width.  The color is determined by

                // the code above.

                g2.drawLine(startX, startY, startX, endY);

            } else { // VERTICAL

                // Draw light line lengthwise across the progress bar.

                g2.setColor(MetalLookAndFeel.getControlShadow());

                g2.drawLine(startX, startY, startX, endY);

                if (amountFull > 0) {

                    // Draw darker lengthwise line over filled area.

                    g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());

                    g2.drawLine(startX, endY,

                            startX, endY - amountFull + 1);

                }

                // Draw a line across the width.  The color is determined by

                // the code above.

                g2.setColor(MetalLookAndFeel.getControlShadow());

                if (progressBar.getPercentComplete() == 1.f) {

                    g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());

                }

                g2.drawLine(startX, startY, endX, startY);

            }

        }

    }

    /**

     * Draws a bit of special highlighting on the progress bar

     * and bouncing box.

     * The core painting is deferred to the BasicProgressBar's

     * <code>paintIndeterminate</code> method.

     * @since 1.4

     */

    public void paintIndeterminate(Graphics g, JComponent c) {

        super.paintIndeterminate(g, c);

        if (!progressBar.isBorderPainted() || (!(g instanceof Graphics2D))) {

            return;

        }

        Insets b = progressBar.getInsets(); // area for border

        int barRectWidth = progressBar.getWidth() - (b.left + b.right);

        int barRectHeight = progressBar.getHeight() - (b.top + b.bottom);

        int amountFull = getAmountFull(b, barRectWidth, barRectHeight);

        boolean isLeftToRight = MetalUtils.isLeftToRight(c);

        int startX, startY, endX, endY;

        Rectangle box = null;

        box = getBox(box);

        // The progress bar border is painted according to a light source.

        // This light source is stationary and does not change when the

        // component orientation changes.

        startX = b.left;

        startY = b.top;

        endX = b.left + barRectWidth - 1;

        endY = b.top + barRectHeight - 1;

        Graphics2D g2 = (Graphics2D)g;

        g2.setStroke(new BasicStroke(1.f));

        if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {

            // Draw light line lengthwise across the progress bar.

            g2.setColor(MetalLookAndFeel.getControlShadow());

            g2.drawLine(startX, startY, endX, startY);

            g2.drawLine(startX, startY, startX, endY);

            // Draw darker lengthwise line over filled area.

            g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());

            g2.drawLine(box.x, startY, box.x + box.width - 1, startY);

        } else { // VERTICAL

            // Draw light line lengthwise across the progress bar.

            g2.setColor(MetalLookAndFeel.getControlShadow());

            g2.drawLine(startX, startY, startX, endY);

            g2.drawLine(startX, startY, endX, startY);

            // Draw darker lengthwise line over filled area.

            g2.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());

            g2.drawLine(startX, box.y, startX, box.y + box.height - 1);

        }

    }

}