opaque Image micro edition - Java javax.microedition.lcdui

Java examples for javax.microedition.lcdui:Graphics

  1. HOME
  2. Java
  3. javax.microedition.lcdui
  4. Graphics

Description

opaque Image micro edition

Demo Code


import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

public class Main{
    public static Image opaqueImage(Image sourceImage, Image __destImage,
            int prcSrcToDest) {
        if (prcSrcToDest > 100) {
            prcSrcToDest = 100;//from  ww w  .j a v  a  2s.c  o m
        } else if (prcSrcToDest < 0) {
            prcSrcToDest = 0;
        }
        int imageWidth = sourceImage.getWidth();
        int imageHeight = sourceImage.getHeight();
        int[] rgbData = new int[imageWidth * imageHeight];
        sourceImage.getRGB(rgbData, 0, imageWidth, 0, 0, imageWidth,
                imageHeight);
        int[] rgbDest = new int[imageWidth * imageHeight];
        __destImage.getRGB(rgbDest, 0, imageWidth, 0, 0, imageWidth,
                imageHeight);
        int currY, r, g, b, currPoint, destPoint, prcDestToSrc = 100 - prcSrcToDest;
        for (int y = 0; y < imageHeight; y++) {
            currY = y * imageWidth;
            for (int x = 0; x < imageWidth; x++) {
                currPoint = rgbData[currY + x];
                destPoint = rgbDest[currY + x];

                b = ((currPoint & 0xff0000) * prcSrcToDest + (destPoint & 0xff0000)
                        * prcDestToSrc) / 100 & 0xff0000;
                g = ((currPoint & 0xff00) * prcSrcToDest + (destPoint & 0xff00)
                        * prcDestToSrc) / 100 & 0xff00;
                r = ((currPoint & 0xff) * prcSrcToDest + (destPoint & 0xff)
                        * prcDestToSrc) / 100 & 0xff;

                rgbData[currY + x] = r | g | b;
            }
        }
        return Image
                .createRGBImage(rgbData, imageWidth, imageHeight, false);
    }
}

Related Tutorials