在MIDP2.0中操作图片像素[2]|中文方案文档站(提供各类方案下载,WORD文档下载,范文,案例等)

Height;

int count;

public ShadowCanvas() {

w = this.getWidth();

h = this.getHeight();

try {

srcImage = Image.createImage("/av.png");

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

imgWidth = srcImage.getWidth();

imgHeight = srcImage.getHeight();

// 制造原始图片的像素数组，用一个int来代表每一个像素,按位表示方式是:0xAARRGGBB

srcRgbImage = new int[imgWidth * imgHeight];

// 获取原始图片的所有像素，参见MIDP APPI文档

srcImage.getRGB(srcRgbImage, 0, imgWidth, 0, 0, imgWidth, imgHeight);

shadowRgbImage = new int[srcRgbImage.length];

System.arraycopy(srcRgbImage, 0, shadowRgbImage, 0,

shadowRgbImage.length);

// 渐变图片的所有像素已开始都是全透明的

for (int i = 0; i < shadowRgbImage.length; i++) {

shadowRgbImage[i] &= 0x00ffffff;

}

new Thread(this).start();

}

public void paint(Graphics g) {

g.setColor(0, 0, 0);

g.fillRect(0, 0, w, h);

// 绘制渐变图片

g.drawRGB(shadowRgbImage, 0, imgWidth, (w - imgWidth) / 2,

(h - imgHeight) / 2, imgWidth, imgHeight, true);

g.setColor(0, 255, 0);

g.drawString("count=" + count, w /

在MIDP2.0中操作图片像素[2]