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/*
 * RgbImage.java
 *
 * Created on August 27, 2006, 12:47 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 *
 * Copyright 2006 by Jon A. Webb
 *     This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU Lesser General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program 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 Lesser General Public License for more details.
 *
 *    You should have received a copy of the Lesser GNU General Public License
 *    along with this program.  If not, see .
 *
 */

package com.github.ojil.core;

/**
 * RgbImage is the type used to hold an RGB image, which is stored as an ARGB
 * image type (32-bits) with the A byte ignored.
 * 

* Implementation-specific libraries define methods that allow the creation of * an RgbImage from a native image type. RgbImage is therefore the first and * last jjil.core object used after capture and before display of an image. * * @author webb */ public class RgbImage extends Image { /** * A pointer to the image data */ protected Integer[] imageData; /** * Creates a new instance of RgbImage * * @param cWidth * the image width * @param cHeight * the image height */ public RgbImage(final int cWidth, final int cHeight) { super(cWidth, cHeight, ImageType.INT_RGB); imageData = new Integer[getWidth() * getHeight()]; } public RgbImage(final int cWidth, final int cHeight, final Integer[] rnData) { super(cWidth, cHeight, ImageType.INT_RGB); imageData = rnData; } /** * Creates a new instance of RgbImage, assigning a constant value * * @param bR * the red color value to be assigned. * @param bG * the green color value to be assigned. * @param bB * the blue color value to be assigned. * @param cWidth * the image width * @param cHeight * the image height */ public RgbImage(final int cWidth, final int cHeight, final byte bR, final byte bG, final byte bB) { super(cWidth, cHeight, ImageType.INT_RGB); imageData = new Integer[getWidth() * getHeight()]; final int nRgb = RgbVal.toRgb(bR, bG, bB); for (int i = 0; i < (getWidth() * getHeight()); i++) { imageData[i] = nRgb; } } /** * Creates a new instance of RgbImage, assigning a constant value * * @param nRgb * the packed RGB value to assign * @param cWidth * the image width * @param cHeight * the image height */ public RgbImage(final int cWidth, final int cHeight, final int nRgb) { super(cWidth, cHeight, ImageType.INT_RGB); imageData = new Integer[getWidth() * getHeight()]; for (int i = 0; i < (getWidth() * getHeight()); i++) { imageData[i] = nRgb; } } /** * Creates a shallow copy of this image * * @return the image copy. */ @Override public Object clone() { final RgbImage image = new RgbImage(getWidth(), getHeight()); System.arraycopy(getData(), 0, image.getData(), 0, getWidth() * getHeight()); return image; } /** * Fill a rectangle in an RgbImage with a given value * * @param r * the Rect to fill * @param rgb * the color to assign * @return the modified RgbImage (i.e., this) * @throws Error * if the bounds are outside the image */ public RgbImage fill(final Rect r, final int rgb) throws Error { if ((r.getTop() < 0) || (r.getBottom() > getHeight()) || (r.getLeft() < 0) || (r.getRight() > getWidth())) { throw new Error(Error.PACKAGE.CORE, ErrorCodes.BOUNDS_OUTSIDE_IMAGE, r.toString(), null, null); } for (int i = r.getTop(); i < r.getBottom(); i++) { for (int j = r.getLeft(); j < r.getRight(); j++) { imageData[(i * getWidth()) + j] = rgb; } } return this; } /** * Get a pointer to the image data. * * @return the data pointer. */ @Override public Integer[] getData() { return imageData; } /** * Return a string describing the image. * * @return the string. */ @Override public String toString() { return super.toString() + " (" + getWidth() + "x" + getHeight() + ")"; } }





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