/*

 * Copyright (c) 2008, 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.colorchooser;

import java.awt.Component;

import javax.swing.UIManager;

class ColorModel {

    private final String prefix;

    private final String[] labels;

    ColorModel(String name, String... labels) {

        this.prefix = "ColorChooser." + name; // NON-NLS: default prefix

        this.labels = labels;

    }

    ColorModel() {

        this("rgb", "Red", "Green", "Blue", "Alpha"); // NON-NLS: components

    }

    void setColor(int color, float[] model) {

        model[0] = normalize(color >> 16);

        model[1] = normalize(color >> 8);

        model[2] = normalize(color);

        model[3] = normalize(color >> 24);

    }

    int getColor(float[] model) {

        return to8bit(model[2]) | (to8bit(model[1]) << 8) | (to8bit(model[0]) << 16) | (to8bit(model[3]) << 24);

    }

    int getCount() {

        return this.labels.length;

    }

    int getMinimum(int index) {

        return 0;

    }

    int getMaximum(int index) {

        return 255;

    }

    float getDefault(int index) {

        return 0.0f;

    }

    final String getLabel(Component component, int index) {

        return getText(component, this.labels[index]);

    }

    private static float normalize(int value) {

        return (float) (value & 0xFF) / 255.0f;

    }

    private static int to8bit(float value) {

        return (int) (255.0f * value);

    }

    final String getText(Component component, String suffix) {

        return UIManager.getString(this.prefix + suffix + "Text", component.getLocale()); // NON-NLS: default postfix

    }

    final int getInteger(Component component, String suffix) {

        Object value = UIManager.get(this.prefix + suffix, component.getLocale());

        if (value instanceof Integer) {

            return (Integer) value;

        }

        if (value instanceof String) {

            try {

                return Integer.parseInt((String) value);

            }

            catch (NumberFormatException exception) {

            }

        }

        return -1;

    }

}