/*
 * Copyright (c) 2015, grossmann
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 * names of its contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
package org.jowidgets.examples.common.snipped;

import org.jowidgets.api.color.Colors;
import org.jowidgets.api.graphics.IGraphicContext;
import org.jowidgets.api.image.IBufferedImage;
import org.jowidgets.api.image.ImageFactory;
import org.jowidgets.api.layout.FillLayout;
import org.jowidgets.api.toolkit.Toolkit;
import org.jowidgets.api.widgets.IFrame;
import org.jowidgets.api.widgets.blueprint.IFrameBluePrint;
import org.jowidgets.common.application.IApplication;
import org.jowidgets.common.application.IApplicationLifecycle;
import org.jowidgets.common.graphics.AntiAliasing;
import org.jowidgets.common.graphics.Point;
import org.jowidgets.tools.widgets.blueprint.BPF;

public final class BufferedImageSnipped implements IApplication {

    @Override
    public void start(final IApplicationLifecycle lifecycle) {

        //create the root frame
        final IFrameBluePrint frameBp = BPF.frame("Buffered Image Snipped");
        final IFrame frame = Toolkit.createRootFrame(frameBp, lifecycle);
        frame.setSize(300, 200);
        frame.setBackgroundColor(Colors.WHITE);
        frame.setLayout(FillLayout.builder().margin(10).build());

        //create a arrow buffered image
        final IBufferedImage image = createArrowImage();

        //create a label using the buffered image as icon
        frame.add(BPF.label().setIcon(image).setText("Hello world"));

        //set the root frame visible
        frame.setVisible(true);
    }

    private static IBufferedImage createArrowImage() {
        //create a buffered image
        final IBufferedImage image = ImageFactory.createBufferedImage(52, 26);
        final IGraphicContext gc = image.getGraphicContext();

        //use anti aliasing
        gc.setAntiAliasing(AntiAliasing.ON);

        //define a polygon that shapes an arrow
        final Point p1 = new Point(0, 6);
        final Point p2 = new Point(26, 6);
        final Point p3 = new Point(26, 0);
        final Point p4 = new Point(48, 12);
        final Point p5 = new Point(26, 24);
        final Point p6 = new Point(26, 18);
        final Point p7 = new Point(0, 18);
        final Point[] polygon = new Point[] {p1, p2, p3, p4, p5, p6, p7, p1};

        //use white background for the image
        gc.setBackgroundColor(Colors.WHITE);
        gc.clear();

        //draw with green color
        gc.setForegroundColor(Colors.GREEN);

        //fill the polygon 
        gc.fillPolygon(polygon);

        return image;
    }
}