Utils.java Source code

Introduction

Here is the source code for Utils.java

Source

/*
 *
 * Created on March 16, 2007, 4:34 PM
 *
 * Copyright 2006-2007 Nigel Hughes
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at http://www.apache.org/
 * licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.awt.image.BufferedImage;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import java.util.Hashtable;
import java.util.LinkedList;

import javax.swing.JComponent;

/**
    
 * @author nigel
 */
public class Utils {
    /** 
     * Renders a component into an image, which is useful for playing with the component's 
     * resultant image in special effects or transitions
     *
     * @param component The component to render
     * @return A buffered image with the rendered component. 
     */
    public static BufferedImage renderComponentToImage(JComponent component) {
        //Create the image
        BufferedImage image = createCompatibleImage(component.getWidth(), component.getHeight());

        //Render the component onto the image
        Graphics graphics = image.createGraphics();
        //      component.update(graphics);
        component.paint(graphics);
        graphics.dispose();
        return image;
    }

    /**
     * Creates an image compatible with the current display
     * 
     * @return A BufferedImage with the appropriate color model
     */
    public static BufferedImage createCompatibleImage(int width, int height) {
        GraphicsConfiguration configuration = GraphicsEnvironment.getLocalGraphicsEnvironment()
                .getDefaultScreenDevice().getDefaultConfiguration();
        return configuration.createCompatibleImage(width, height, Transparency.TRANSLUCENT);
    }
}