/*

 * 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 javax.swing.JComponent;

import javax.swing.JSlider;

import javax.swing.JSpinner;

import javax.swing.JSpinner.DefaultEditor;

import javax.swing.SpinnerNumberModel;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

final class SlidingSpinner implements ChangeListener {

    private final ColorPanel panel;

    private final JComponent label;

    private final SpinnerNumberModel model = new SpinnerNumberModel();

    private final JSlider slider = new JSlider();

    private final JSpinner spinner = new JSpinner(this.model);

    private float value;

    private boolean internal;

    SlidingSpinner(ColorPanel panel, JComponent label) {

        this.panel = panel;

        this.label = label;

        this.slider.addChangeListener(this);

        this.spinner.addChangeListener(this);

        DefaultEditor editor = (DefaultEditor) this.spinner.getEditor();

        ValueFormatter.init(3, false, editor.getTextField());

        editor.setFocusable(false);

        this.spinner.setFocusable(false);

    }

    JComponent getLabel() {

        return this.label;

    }

    JSlider getSlider() {

        return this.slider;

    }

    JSpinner getSpinner() {

        return this.spinner;

    }

    float getValue() {

        return this.value;

    }

    void setValue(float value) {

        int min = this.slider.getMinimum();

        int max = this.slider.getMaximum();

        this.internal = true;

        this.slider.setValue(min + (int) (value * (float) (max - min)));

        this.spinner.setValue(Integer.valueOf(this.slider.getValue()));

        this.internal = false;

        this.value = value;

    }

    void setRange(int min, int max) {

        this.internal = true;

        this.slider.setMinimum(min);

        this.slider.setMaximum(max);

        this.model.setMinimum(Integer.valueOf(min));

        this.model.setMaximum(Integer.valueOf(max));

        this.internal = false;

    }

    void setVisible(boolean visible) {

        this.label.setVisible(visible);

        this.slider.setVisible(visible);

        this.spinner.setVisible(visible);

    }

    public void stateChanged(ChangeEvent event) {

        if (!this.internal) {

            if (this.spinner == event.getSource()) {

                Object value = this.spinner.getValue();

                if (value instanceof Integer) {

                    this.internal = true;

                    this.slider.setValue((Integer) value);

                    this.internal = false;

                }

            }

            int value = this.slider.getValue();

            this.internal = true;

            this.spinner.setValue(Integer.valueOf(value));

            this.internal = false;

            int min = this.slider.getMinimum();

            int max = this.slider.getMaximum();

            this.value = (float) (value - min) / (float) (max - min);

            this.panel.colorChanged();

        }

    }

}