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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.awt.event.FocusEvent;
import java.awt.event.FocusListener;

import javax.swing.JComponent;
import javax.swing.LookAndFeel;
import javax.swing.UIManager;
import javax.swing.border.Border;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.UIResource;
import javax.swing.plaf.basic.BasicFormattedTextFieldUI;

/**
 * @author Michael Hagen
 */
public class BaseFormattedTextFieldUI extends BasicFormattedTextFieldUI {

  private Border        orgBorder     = null;
  private FocusListener focusListener = null;

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

  protected void installListeners() {
    super.installListeners();

    if (AbstractLookAndFeel.getTheme().doShowFocusFrame()) {
      focusListener = new FocusListener() {

        public void focusGained(FocusEvent e) {
          if (getComponent() != null) {
            orgBorder = getComponent().getBorder();
            LookAndFeel laf = UIManager.getLookAndFeel();
            if (laf instanceof AbstractLookAndFeel && orgBorder instanceof UIResource) {
              Border focusBorder = ((AbstractLookAndFeel) laf).getBorderFactory().getFocusFrameBorder();
              getComponent().setBorder(focusBorder);
            }
            getComponent().invalidate();
            getComponent().repaint();
          }
        }

        public void focusLost(FocusEvent e) {
          if (getComponent() != null) {
            if (orgBorder instanceof UIResource) {
              getComponent().setBorder(orgBorder);
              getComponent().invalidate();
              getComponent().repaint();
            }
          }
        }
      };
      getComponent().addFocusListener(focusListener);
    }
  }

  protected void uninstallListeners() {
    getComponent().removeFocusListener(focusListener);
    focusListener = null;
    super.uninstallListeners();
  }

  protected void paintBackground(Graphics g) {
    g.setColor(getComponent().getBackground());
    if (AbstractLookAndFeel.getTheme().doShowFocusFrame()) {
      if (getComponent().hasFocus() && getComponent().isEditable()) {
        g.setColor(AbstractLookAndFeel.getTheme().getFocusBackgroundColor());
      }
    }
    g.fillRect(0, 0, getComponent().getWidth(), getComponent().getHeight());
  }

  protected void paintSafely(Graphics g) {
    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.paintSafely(g);
    if (AbstractLookAndFeel.getTheme().isTextAntiAliasingOn()) {
      g2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, savedRenderingHint);
    }
  }
}