Java Image createMemoryImage(int width, int height, Color colour, JComponent someComponent)

Description

Creates a square image of a particular colour.

License

LGPL

Parameter

Parameter	Description
width	Width of the required image
height	Height of the required image
colour	Colour of the required image
someComponent	a parameter

Return

The image

Declaration

public static Image createMemoryImage(int width, int height, Color colour, JComponent someComponent) 

Method Source Code

//package com.java2s;
/*/*from  w ww  .  ja  va  2 s .  c o  m*/
Strandz LGPL - an API that matches the user to the data.
Copyright (C) 2007 Chris Murphy
    
Strandz LGPL 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 2.1 of the License, or (at your option) any later version.
    
This library 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 GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
    
    
The authors can be contacted via www.strandz.org
*/

import javax.swing.JComponent;
import java.awt.Color;
import java.awt.Image;
import java.awt.image.IndexColorModel;
import java.awt.image.MemoryImageSource;

public class Main {
    /**
     * Creates a square image of a particular colour. If someone knows how to do the
     * same with a circle...
     * 
     * Attribution:
     * http://www.javaworld.com/javaworld/javatips/jw-javatip16.html 
     * 
     * @param width Width of the required image
     * @param height Height of the required image
     * @param colour Colour of the required image
     * @param someComponent  
     * @return The image
     */
    public static Image createMemoryImage(int width, int height, Color colour, JComponent someComponent) {
        Image result;
        int[] pixels = new int[width * height];
        int arraySize = 3;
        Color colorArray[] = new Color[arraySize];
        for (int i = 0; i < arraySize; i++) {
            colorArray[i] = colour;
        }
        byte reds[] = new byte[arraySize];
        byte greens[] = new byte[arraySize];
        byte blues[] = new byte[arraySize];
        for (int i = 0; i < arraySize; i++) {
            reds[i] = (byte) colorArray[i].getRed();
            greens[i] = (byte) colorArray[i].getGreen();
            blues[i] = (byte) colorArray[i].getBlue();
        }
        for (int index = 0, y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                pixels[index++] = (byte) (x % arraySize);
            }
        }
        result = someComponent.createImage(new MemoryImageSource(width, height,
                new IndexColorModel(8, arraySize, reds, greens, blues), pixels, 0, width));
        return result;
    }
}

Related

1. checkLosslessImageExt(Component parent, File f)
2. configureMacOSApplication(String appName, String dockImagePath)
3. CreateCopy(Image srcImg)
4. createCursor(Image cursorImage, Point hotSpot, String name)
5. createCursor(Image image, Point hotspot, String name)
6. createQualityResizedImage( Image orginalImage, int width, int height, boolean keepRatio)
7. createScaledImage(Image inImage, int inWidth, int inHeight)
8. createShadowPicture(Image buf)
9. createTiledImage(Image img, int width, int height)