/*

 * Copyright (c) 2007, 2016, 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.

 *

 * 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 com.sun.swingset3.demos.spinner;

import javax.swing.*;

import java.awt.*;

import javax.swing.event.ChangeListener;

import javax.swing.event.ChangeEvent;

import com.sun.swingset3.demos.ResourceManager;

/**

 * @author Mikhail Lapshin

 */

public class PaletteChooser extends JPanel {

    private static final int MIN_COLOR = 50;

    private static final int MAX_COLOR = 255;

    private static final int R_STEPS = 5;

    private static final int G_STEPS = 5;

    private static final int B_STEPS = 5;

    private static final int R_ANGLE = 270;

    private static final int G_ANGLE = 90;

    private static final int B_ANGLE = 0;

    public static final String PALETTE_PROPERTY_NAME = "palette";

    private final ResourceManager resourceManager;

    private Palette palette;

    private final JPaletteShower shower;

    private final ChangeListener changeListener;

    private JSpinner rsSpinner;

    private JSpinner gsSpinner;

    private JSpinner bsSpinner;

    private JSpinner raSpinner;

    private JSpinner gaSpinner;

    private JSpinner baSpinner;

    public PaletteChooser(ResourceManager resourceManager) {

        this.resourceManager = resourceManager;

        palette = new Palette(MAX_COLOR - MIN_COLOR, MIN_COLOR, MAX_COLOR,

                Math.toRadians(R_ANGLE), Math.toRadians(G_ANGLE),

                Math.toRadians(B_ANGLE), R_STEPS, G_STEPS, B_STEPS);

        shower = new JPaletteShower(palette, 250, 25);

        //<snip>Use single change listener for several spinners

        changeListener = new ChangeListener() {

            @Override

            public void stateChanged(ChangeEvent e) {

                setPalette(createPalette());

                shower.setPalette(palette);

                repaint();

            }

        };

        //</snip>

        setBorder(BorderFactory.createTitledBorder(

                resourceManager.getString("SpinnerDemo.colorPalette")));

        setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));

        add(shower);

        add(createControlPanel());

    }

    private double toRadians(JSpinner spinner) {

        return Math.toRadians(getIntValue(spinner));

    }

    private Palette createPalette() {

        return new Palette(getWidth(), MIN_COLOR, MAX_COLOR,

                toRadians(raSpinner), toRadians(gaSpinner),

                toRadians(baSpinner), getIntValue(rsSpinner),

                getIntValue(gsSpinner), getIntValue(bsSpinner));

    }

    private static int getIntValue(JSpinner spinner) {

        return (Integer) spinner.getValue();

    }

    private JPanel createControlPanel() {

        JPanel controlPanel = new JPanel();

        controlPanel.setLayout(new GridLayout(1, 2));

        controlPanel.add(createStepPanel());

        controlPanel.add(createStartAnglePanel());

        return controlPanel;

    }

    private JPanel createStartAnglePanel() {

        JSpinnerPanel startAnglePanel = new JSpinnerPanel();

        startAnglePanel.setBorder(BorderFactory.createTitledBorder(

                resourceManager.getString("SpinnerDemo.startAngles")));

        raSpinner = createAngleSpinner(R_ANGLE, "SpinnerDemo.r", startAnglePanel);

        gaSpinner = createAngleSpinner(G_ANGLE, "SpinnerDemo.g", startAnglePanel);

        baSpinner = createAngleSpinner(B_ANGLE, "SpinnerDemo.b", startAnglePanel);

        return startAnglePanel;

    }

    private JPanel createStepPanel() {

        JSpinnerPanel stepPanel = new JSpinnerPanel();

        stepPanel.setBorder(BorderFactory.createTitledBorder(

                resourceManager.getString("SpinnerDemo.steps")));

        rsSpinner = createStepSpinner(R_STEPS, "SpinnerDemo.r", stepPanel);

        gsSpinner = createStepSpinner(G_STEPS, "SpinnerDemo.g", stepPanel);

        bsSpinner = createStepSpinner(B_STEPS, "SpinnerDemo.b", stepPanel);

        return stepPanel;

    }

    private JSpinner createAngleSpinner(int startAngle, String resourceName,

            JSpinnerPanel parent) {

        SpinnerModel model = new SpinnerNumberModel(startAngle, 0, 360, 10);

        return createSpinner(model, resourceName, parent);

    }

    private JSpinner createStepSpinner(int startSteps, String resourceName,

            JSpinnerPanel parent) {

        SpinnerModel model = new SpinnerNumberModel(startSteps, 1, 1000, 1);

        return createSpinner(model, resourceName, parent);

    }

    private JSpinner createSpinner(SpinnerModel model, String resourceName,

            JSpinnerPanel parent) {

        //<snip>Create spinner

        JSpinner spinner = new JSpinner(model);

        //</snip>

        //<snip>Use single change listener for several spinners

        spinner.addChangeListener(changeListener);

        //</snip>

        parent.addSpinner(resourceManager.getString(resourceName), spinner);

        return spinner;

    }

    public Palette getPalette() {

        return palette;

    }

    private void setPalette(Palette palette) {

        Palette oldValue = this.palette;

        this.palette = palette;

        firePropertyChange(PALETTE_PROPERTY_NAME, oldValue, palette);

    }

}