resize Image Proportional micro edition - Java javax.microedition.lcdui

Java examples for javax.microedition.lcdui:Graphics

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Description

resize Image Proportional micro edition

Demo Code


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

public class Main{
    public static Image resizeImageProportional(Image sourceImage,
            int prcSize) {
        if (prcSize > 100) {
            prcSize = 100;//  w  w w. j av  a2s  . c  o m
        } else if (prcSize <= 0) {
            return Image.createImage(1, 1);
        }
        int imageWidth = sourceImage.getWidth();
        int imageHeight = sourceImage.getHeight();
        int destWidth = imageWidth * prcSize / 100;
        int destHeight = imageHeight * prcSize / 100;
        /** Buffers **/
        int[] rgbData = new int[imageWidth * imageHeight];
        int[] rgbDest = new int[destWidth * destHeight];
        /** Fill buffer **/
        sourceImage.getRGB(rgbData, 0, imageWidth, 0, 0, imageWidth,
                imageHeight);
        int currY, xx, yy = 0;
        for (int y = 0; y < destHeight; y++) {
            currY = y * destWidth;
            xx = 0;
            for (int x = 0; x < destWidth; x++) {
                try {
                    rgbDest[currY + x] = rgbData[(yy * 100 + xx) / 100];
                } catch (Throwable ex) {
                }
                xx += 10000 / prcSize;
            }
            yy = (y * imageHeight / destHeight) * imageWidth;
        }
        return Image.createRGBImage(rgbDest, destWidth, destHeight, false);
    }
}

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