com.appslandia.plum.captcha.CaptchaProducer Maven / Gradle / Ivy

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// The MIT License (MIT)
// Copyright © 2015 AppsLandia. All rights reserved.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package com.appslandia.plum.captcha;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;

import com.appslandia.common.base.InitializeObject;

/**
 *
 * @author Loc Ha
 *
 */
public class CaptchaProducer extends InitializeObject {

	private WordsRenderer wordsRenderer;
	private BackgroundProducer backgroundProducer;
	private List imageRenderers = new ArrayList<>();

	private int width = 200;
	private int height = 50;
	private boolean borderRendered = false;
	private Color borderColor;

	@Override
	protected void init() throws Exception {
		if (this.wordsRenderer == null) {
			this.wordsRenderer = new WordsRendererImpl();
		}
		if (this.backgroundProducer == null) {
			this.backgroundProducer = new TransparentBgProducer();
		}
		if (this.borderRendered) {
			if (this.borderColor == null) {
				this.borderColor = Color.GRAY;
			}
		}
	}

	public BufferedImage produce(String words) {
		this.initialize();

		// ARGB
		BufferedImage img = new BufferedImage(this.width, this.height, BufferedImage.TYPE_INT_ARGB);

		// Words
		this.wordsRenderer.render(img, this.width, this.height, words);

		// Renders
		for (ImageRenderer renderer : imageRenderers) {
			renderer.render(img, this.width, this.height);
		}

		// Background
		BufferedImage bg = this.backgroundProducer.produce(this.width, this.height);
		Graphics2D g = bg.createGraphics();
		g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f));
		g.drawImage(img, null, null);

		// Border?
		if (this.borderRendered) {
			g.setColor(this.borderColor);
			g.drawLine(0, 0, 0, this.height - 1);
			g.drawLine(0, 0, this.width - 1, 0);
			g.drawLine(0, this.height - 1, this.width, this.height - 1);
			g.drawLine(this.width - 1, this.height - 1, this.width - 1, 0);
		}

		g.dispose();
		return bg;
	}

	public CaptchaProducer setWordsRenderer(WordsRenderer wordsRender) {
		this.assertNotInitialized();
		this.wordsRenderer = wordsRender;
		return this;
	}

	public CaptchaProducer setBackgroundProducer(BackgroundProducer backgroundProducer) {
		this.assertNotInitialized();
		this.backgroundProducer = backgroundProducer;
		return this;
	}

	public CaptchaProducer addImageRenderer(ImageRenderer noiseRenderer) {
		this.assertNotInitialized();
		this.imageRenderers.add(noiseRenderer);
		return this;
	}

	public CaptchaProducer setWidth(int width) {
		this.assertNotInitialized();
		this.width = width;
		return this;
	}

	public CaptchaProducer setHeight(int height) {
		this.assertNotInitialized();
		this.height = height;
		return this;
	}

	public CaptchaProducer setBorderRendered(boolean borderRendered) {
		this.assertNotInitialized();
		this.borderRendered = borderRendered;
		return this;
	}

	public CaptchaProducer setBorderColor(Color borderColor) {
		this.assertNotInitialized();
		this.borderColor = borderColor;
		return this;
	}
}