/*
 * 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 java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.plaf.*;

CheckboxIcon implementation for OrganicCheckBoxUI

Warning:
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 java.beans package. Please see XMLEncoder. 
Author:
Steve Wilson/**
 * CheckboxIcon implementation for OrganicCheckBoxUI
 * <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 Steve Wilson
 */
@SuppressWarnings("serial") // Same-version serialization only
public class MetalCheckBoxIcon implements Icon, UIResource, Serializable {

    
Constructs a MetalCheckBoxIcon. /**
     * Constructs a {@code MetalCheckBoxIcon}.
     */
    public MetalCheckBoxIcon() {}

    
Returns the size of the control.
Returns:
the size of the control/**
     * Returns the size of the control.
     *
     * @return the size of the control
     */
    protected int getControlSize() { return 13; }

    public void paintIcon(Component c, Graphics g, int x, int y) {

        JCheckBox cb = (JCheckBox)c;
        ButtonModel model = cb.getModel();
        int controlSize = getControlSize();

        boolean drawCheck = model.isSelected();

        if (model.isEnabled()) {
            if(cb.isBorderPaintedFlat()) {
                g.setColor(MetalLookAndFeel.getControlDarkShadow());
                g.drawRect(x+1, y, controlSize-1, controlSize-1);
            }
            if (model.isPressed() && model.isArmed()) {
                if(cb.isBorderPaintedFlat()) {
                    g.setColor(MetalLookAndFeel.getControlShadow());
                    g.fillRect(x+2, y+1, controlSize-2, controlSize-2);
                } else {
                    g.setColor(MetalLookAndFeel.getControlShadow());
                    g.fillRect(x, y, controlSize-1, controlSize-1);
                    MetalUtils.drawPressed3DBorder(g, x, y, controlSize, controlSize);
                }
            } else if(!cb.isBorderPaintedFlat()) {
                MetalUtils.drawFlush3DBorder(g, x, y, controlSize, controlSize);
            }
            g.setColor( MetalLookAndFeel.getControlInfo() );
        } else {
            g.setColor( MetalLookAndFeel.getControlShadow() );
            g.drawRect( x, y, controlSize-1, controlSize-1);
        }


        if(drawCheck) {
            if (cb.isBorderPaintedFlat()) {
                x++;
            }
            drawCheck(c,g,x,y);
        }
    }

    
Paints MetalCheckBoxIcon. 
Params:
c – a component
g – an instance of Graphics
x – an X coordinate
y – an Y coordinate/**
     * Paints {@code MetalCheckBoxIcon}.
     *
     * @param c a component
     * @param g an instance of {@code Graphics}
     * @param x an X coordinate
     * @param y an Y coordinate
     */
    protected void drawCheck(Component c, Graphics g, int x, int y) {
        int controlSize = getControlSize();
        g.fillRect( x+3, y+5, 2, controlSize-8 );
        g.drawLine( x+(controlSize-4), y+3, x+5, y+(controlSize-6) );
        g.drawLine( x+(controlSize-4), y+4, x+5, y+(controlSize-5) );
    }

    public int getIconWidth() {
        return getControlSize();
    }

    public int getIconHeight() {
        return getControlSize();
    }
 }