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/*
* 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;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.lang.reflect.Field;

import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicPanelUI;

/**
 * @author Michael Hagen
 */
public class BasePanelUI extends BasicPanelUI {

  private static BasePanelUI panelUI = null;

  public static ComponentUI createUI(JComponent c) {
    if (panelUI == null) {
      panelUI = new BasePanelUI();
    }
    return panelUI;
  }

  protected void installDefaults(JPanel p) {
    super.installDefaults(p);
    p.setFont(AbstractLookAndFeel.getTheme().getControlTextFont());

    // We don't want medium weight popups for tool tips, so we try to force heavy weight popups.
    try {
      Field field;
      if (JTattooUtilities.getJavaVersion() < 1.7) {
        Class clazz = Class.forName("javax.swing.PopupFactory");
        field = clazz.getDeclaredField("forceHeavyWeightPopupKey");
      }
      else { // 1.7.0, 1.8.0
        Class clazz = Class.forName("javax.swing.ClientPropertyKey");
        field = clazz.getDeclaredField("PopupFactory_FORCE_HEAVYWEIGHT_POPUP");
      }
      field.setAccessible(true);
      p.putClientProperty(field.get(null), Boolean.TRUE);
    }
    catch (Exception ex) {
    }
  }

  public void update(Graphics g, JComponent c) {
    if (c.isOpaque()) {
      Object backgroundTexture = c.getClientProperty("backgroundTexture");
      if (backgroundTexture instanceof Icon) {
        JTattooUtilities.fillComponent(g, c, (Icon) backgroundTexture);
      }
      else {
        g.setColor(c.getBackground());
        g.fillRect(0, 0, c.getWidth(), c.getHeight());
      }
    }
  }

  public void paint(Graphics g, JComponent c) {
    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());
    }
    super.paint(g, c);
    if (AbstractLookAndFeel.getTheme().isTextAntiAliasingOn()) {
      g2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, savedRenderingHint);
    }
  }
}




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