ThinBevelBorder.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.uitools.swing;

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Insets;

import javax.swing.border.BevelBorder;

/**
 * The JDK bevel border is 2 pixels thick. Override its
 * behavior to only paint 1 pixel.
 */
public class ThinBevelBorder extends BevelBorder {

    public ThinBevelBorder(int bevelType) {
        super(bevelType);
    }

    public ThinBevelBorder(int bevelType, Color highlight, Color shadow) {
        super(bevelType, highlight, shadow.darker());
        // work around possible JDK bug: the code in BevelBorder(int bevelType, Color highlight, Color shadow)
        // should probably read:
        //     this(bevelType, highlight.brighter(), highlight, shadow.darker(), shadow);
        // not:
        //     this(bevelType, highlight.brighter(), highlight, shadow, shadow.brighter());
        // this would be more consistent with the default behavior, where the "inside"
        // colors are not as contrasted with the component's background as the
        // "outside" colors
    }

    /**
     * @see javax.swing.border.BevelBorder#getBorderInsets(java.awt.Component)
     */
    public Insets getBorderInsets(Component c) {
        return new Insets(1, 1, 1, 1);
    }

    /**
     * @see javax.swing.border.BevelBorder#getBorderInsets(java.awt.Component, java.awt.Insets)
     */
    public Insets getBorderInsets(Component c, Insets insets) {
        insets.left = insets.top = insets.right = insets.bottom = 1;
        return insets;
    }

    /**
     * @see javax.swing.border.BevelBorder#paintRaisedBevel(java.awt.Component, java.awt.Graphics, int, int, int, int)
     */
    protected void paintRaisedBevel(Component c, Graphics g, int x, int y, int width, int height) {
        Color oldColor = g.getColor();
        int h = height;
        int w = width;

        g.translate(x, y);

        // use the inner colors - they have less contrast
        g.setColor(this.getHighlightInnerColor(c));
        g.drawLine(0, 0, 0, h-2);
        g.drawLine(1, 0, w-2, 0);

        g.setColor(this.getShadowInnerColor(c));
        g.drawLine(0, h-1, w-1, h-1);
        g.drawLine(w-1, 0, w-1, h-2);

        g.translate(-x, -y);
        g.setColor(oldColor);
    }

    /**
     * @see javax.swing.border.BevelBorder#paintLoweredBevel(java.awt.Component, java.awt.Graphics, int, int, int, int)
     */
    protected void paintLoweredBevel(Component c, Graphics g, int x, int y, int width, int height) {
        Color oldColor = g.getColor();
        int h = height;
        int w = width;

        g.translate(x, y);

        // use the inner colors - they have less contrast
        g.setColor(this.getShadowInnerColor(c));
        g.drawLine(0, 0, 0, h-1);
        g.drawLine(1, 0, w-1, 0);

        g.setColor(this.getHighlightInnerColor(c));
        g.drawLine(1, h-1, w-1, h-1);
        g.drawLine(w-1, 1, w-1, h-2);

        g.translate(-x, -y);
        g.setColor(oldColor);
    }

}