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A LookAndFeel library for swing
There is a newer version: 1.6.13
/*
* Copyright (c) 2002 and later by MH Software-Entwicklung. All Rights Reserved.
*  
* JTattoo is multiple licensed. If your are an open source developer you can use
* it under the terms and conditions of the GNU General Public License version 2.0
* or later as published by the Free Software Foundation.
*  
* see: gpl-2.0.txt
* 
* If you pay for a license you will become a registered user who could use the
* software under the terms and conditions of the GNU Lesser General Public License
* version 2.0 or later with classpath exception as published by the Free Software
* Foundation.
* 
* see: lgpl-2.0.txt
* see: classpath-exception.txt
* 
* Registered users could also use JTattoo under the terms and conditions of the 
* Apache License, Version 2.0 as published by the Apache Software Foundation.
*  
* see: APACHE-LICENSE-2.0.txt
*/
 
package com.jtattoo.plaf.aero;

import com.jtattoo.plaf.*;
import java.awt.*;
import javax.swing.JComponent;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.UIResource;
import javax.swing.text.View;

/**
 * @author Michael Hagen
 */
public class AeroTabbedPaneUI extends BaseTabbedPaneUI {
    private Color sepColors[] = null;

    public static ComponentUI createUI(JComponent c) {
        return new AeroTabbedPaneUI();
    }

    protected void installComponents() {
        simpleButtonBorder = true;
        super.installComponents();
    }

    protected Color[] getContentBorderColors(int tabPlacement) {
        if (sepColors == null) {
            sepColors = new Color[5];
            sepColors[0] = ColorHelper.brighter(AbstractLookAndFeel.getControlColorDark(), 40);
            sepColors[1] = ColorHelper.brighter(AbstractLookAndFeel.getControlColorLight(), 40);
            sepColors[2] = ColorHelper.brighter(AbstractLookAndFeel.getControlColorLight(), 60);
            sepColors[3] = ColorHelper.brighter(AbstractLookAndFeel.getControlColorLight(), 20);
            sepColors[4] = ColorHelper.brighter(AbstractLookAndFeel.getControlColorDark(), 30);
        }
        return sepColors;
    }

    protected Font getTabFont(boolean isSelected) {
        if (isSelected) {
            return super.getTabFont(isSelected).deriveFont(Font.BOLD);
        } else {
            return super.getTabFont(isSelected);
        }
    }

    protected void paintText(Graphics g, int tabPlacement, Font font, FontMetrics metrics, int tabIndex, String title, Rectangle textRect, boolean isSelected) {
        Color backColor = tabPane.getBackgroundAt(tabIndex);
        if (!(backColor instanceof UIResource)) {
            super.paintText(g, tabPlacement, font, metrics, tabIndex, title, textRect, isSelected);
            return;
        }
        g.setFont(font);
        View v = getTextViewForTab(tabIndex);
        if (v != null) {
            // html
            Graphics2D g2D = (Graphics2D)g;
            Object savedRenderingHint = null;
            if (AbstractLookAndFeel.getTheme().isTextAntiAliasingOn()) {
                savedRenderingHint = g2D.getRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING);
                g2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, AbstractLookAndFeel.getTheme().getTextAntiAliasingHint());
            }
            v.paint(g, textRect);
            if (AbstractLookAndFeel.getTheme().isTextAntiAliasingOn()) {
                g2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, savedRenderingHint);
            }
        } else {
            // plain text
            int mnemIndex = -1;
            if (JTattooUtilities.getJavaVersion() >= 1.4) {
                mnemIndex = tabPane.getDisplayedMnemonicIndexAt(tabIndex);
            }

            if (tabPane.isEnabled() && tabPane.isEnabledAt(tabIndex)) {
                if (isSelected ) {
                    Color titleColor = AbstractLookAndFeel.getTabSelectionForegroundColor();
                    if (ColorHelper.getGrayValue(titleColor) > 164) {
                        g.setColor(Color.black);
                    } else {
                        g.setColor(Color.white);
                    }
                    JTattooUtilities.drawStringUnderlineCharAt(tabPane, g, title, mnemIndex, textRect.x + 1, textRect.y + 1 + metrics.getAscent());
                    g.setColor(titleColor);
                } else {
                    g.setColor(tabPane.getForegroundAt(tabIndex));
                }
                JTattooUtilities.drawStringUnderlineCharAt(tabPane, g, title, mnemIndex, textRect.x, textRect.y + metrics.getAscent());

            } else { // tab disabled
                g.setColor(tabPane.getBackgroundAt(tabIndex).brighter());
                JTattooUtilities.drawStringUnderlineCharAt(tabPane, g, title, mnemIndex, textRect.x, textRect.y + metrics.getAscent());
                g.setColor(tabPane.getBackgroundAt(tabIndex).darker());
                JTattooUtilities.drawStringUnderlineCharAt(tabPane, g, title, mnemIndex, textRect.x - 1, textRect.y + metrics.getAscent() - 1);
            }
        }
    }

}