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/*
 * @(#)MetalIconFactory.java 5/19/2011
 *
 * Copyright 2002 - 2011 JIDE Software Inc. All rights reserved.
 */

package com.jidesoft.plaf.metal;

import com.jidesoft.swing.TristateButtonModel;

import javax.swing.*;
import javax.swing.plaf.UIResource;
import javax.swing.plaf.metal.MetalLookAndFeel;
import javax.swing.plaf.metal.OceanTheme;
import java.awt.*;
import java.io.Serializable;

public class MetalIconFactory implements Serializable {
    private static Icon checkBoxIcon;

    /**
     * Returns a checkbox icon.
     */
    public static Icon getCheckBoxIcon() {
        if (checkBoxIcon == null) {
            checkBoxIcon = new CheckBoxIcon();
        }
        return checkBoxIcon;
    }

    private static class CheckBoxIcon implements Icon, UIResource, Serializable {

        protected int getControlSize() {
            return 13;
        }

        private void paintOceanIcon(Component c, Graphics g, int x, int y) {
            ButtonModel model = ((JCheckBox) c).getModel();

            g.translate(x, y);
            int w = getIconWidth();
            int h = getIconHeight();
            if (model.isEnabled()) {
                if (model.isPressed() && model.isArmed()) {
                    g.setColor(MetalLookAndFeel.getControlShadow());
                    g.fillRect(0, 0, w, h);
                    g.setColor(MetalLookAndFeel.getControlDarkShadow());
                    g.fillRect(0, 0, w, 2);
                    g.fillRect(0, 2, 2, h - 2);
                    g.fillRect(w - 1, 1, 1, h - 1);
                    g.fillRect(1, h - 1, w - 2, 1);
                }
                else if (model.isRollover()) {
                    MetalUtils.drawGradient(c, g, "CheckBox.gradient", 0, 0,
                            w, h, true);
                    g.setColor(MetalLookAndFeel.getControlDarkShadow());
                    g.drawRect(0, 0, w - 1, h - 1);
                    g.setColor(MetalLookAndFeel.getPrimaryControl());
                    g.drawRect(1, 1, w - 3, h - 3);
                    g.drawRect(2, 2, w - 5, h - 5);
                }
                else {
                    MetalUtils.drawGradient(c, g, "CheckBox.gradient", 0, 0,
                            w, h, true);
                    g.setColor(MetalLookAndFeel.getControlDarkShadow());
                    g.drawRect(0, 0, w - 1, h - 1);
                }
                g.setColor(MetalLookAndFeel.getControlInfo());
            }
            else {
                g.setColor(MetalLookAndFeel.getControlDarkShadow());
                g.drawRect(0, 0, w - 1, h - 1);
            }
            g.translate(-x, -y);

            // the following statement added for LegacyTristateCheckBox
            if (model instanceof TristateButtonModel && ((TristateButtonModel) model).isMixed()) {
                drawSquare(c, g, x, y);
            }
            else if (model.isSelected()) {
                drawCheck(c, g, x, y);
            }
        }

        public void paintIcon(Component c, Graphics g, int x, int y) {
            if (MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme) {
                paintOceanIcon(c, g, x, y);
                return;
            }
            ButtonModel model = ((JCheckBox) c).getModel();
            int controlSize = getControlSize();

            if (model.isEnabled()) {
                if (model.isPressed() && model.isArmed()) {
                    g.setColor(MetalLookAndFeel.getControlShadow());
                    g.fillRect(x, y, controlSize - 1, controlSize - 1);
                    MetalUtils.drawPressed3DBorder(g, x, y, controlSize, controlSize);
                }
                else {
                    MetalUtils.drawFlush3DBorder(g, x, y, controlSize, controlSize);
                }
                g.setColor(c.getForeground());
            }
            else {
                g.setColor(MetalLookAndFeel.getControlShadow());
                g.drawRect(x, y, controlSize - 2, controlSize - 2);
            }

            if (model instanceof TristateButtonModel && ((TristateButtonModel) model).isMixed()) {
                drawSquare(c, g, x, y);
            }
            else if (model.isSelected()) {
                drawCheck(c, g, x, y);
            }

        }

        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));
        }

        // the following method added for LegacyTristateCheckBox
        protected void drawSquare(Component c, Graphics g, int x, int y) {
            int controlSize = getControlSize();
            g.fillRect(x + 3, y + 3, controlSize - 6, controlSize - 6);
        }

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

        public int getIconHeight() {
            return getControlSize();
        }
    } // End class CheckBoxIcon
}