public ImageDisplayScreen(EncodedImage image) {
   int displayWidth = Fixed32.toFP(Display.getWidth());
   int imageWidth = Fixed32.toFP(image.getWidth());
   int scalingFactor = Fixed32.div(imageWidth, displayWidth);
   EncodedImage scaledImage = image.scaleImage32(scalingFactor, scalingFactor);
   BitmapField bitmapFiled = new BitmapField();
   bitmapFiled.setImage(scaledImage);
   add(bitmapFiled);
 }
  public Bitmap scaleImage(EncodedImage encodedImage, int requiredWidth, int requiredHeight) {
    int currentWidth = Fixed32.toFP(encodedImage.getWidth());
    int currentHeight = Fixed32.toFP(encodedImage.getHeight());

    int scaleXFixed32 = Fixed32.div(currentWidth, requiredWidth);
    int scaleYFixed32 = Fixed32.div(currentHeight, requiredHeight);

    EncodedImage image = encodedImage.scaleImage32(scaleXFixed32, scaleYFixed32);

    return image.getBitmap();
  }
Exemple #3
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 public EncodedImage getScaledImage(EncodedImage ei, int wsize) {
   EncodedImage image = ei;
   if (wsize != 0) {
     int currentWidthFixed32 = Fixed32.toFP(image.getWidth());
     int currentHeightFixed32 = Fixed32.toFP(image.getHeight());
     int factor = Fixed32.div(wsize, image.getWidth());
     int height = Fixed32.mul(image.getHeight(), factor);
     int scaleXFixed32 = Fixed32.div(currentWidthFixed32, Fixed32.toFP(wsize));
     int scaleYFixed32 = Fixed32.div(currentHeightFixed32, Fixed32.toFP(height));
     image = ei.scaleImage32(scaleXFixed32, scaleYFixed32);
   }
   return image;
 }
  // Resize a bitmap proportionally  (shrink or enlarge) to make it fit a maxX x maxY rectangle
  public static Bitmap getFitBitmapImage(String imagename, int maxX, int maxY) {

    EncodedImage image = EncodedImage.getEncodedImageResource(imagename);

    int currentWidthFixed32 = Fixed32.toFP(image.getWidth());
    int currentHeightFixed32 = Fixed32.toFP(image.getHeight());

    // double ratio = (double)ratioX / (double) ratioY;
    double rx = (double) image.getWidth() / (double) maxX;
    double ry = (double) image.getHeight() / (double) maxY;
    double r = 0;
    if (rx > ry) r = rx;
    else r = ry;
    double w = (double) image.getWidth() / r;
    double h = (double) image.getHeight() / r;

    int width = (int) w;
    int height = (int) h;

    int requiredWidthFixed32 = Fixed32.toFP(width);
    int requiredHeightFixed32 = Fixed32.toFP(height);

    int scaleXFixed32 = Fixed32.div(currentWidthFixed32, requiredWidthFixed32);
    int scaleYFixed32 = Fixed32.div(currentHeightFixed32, requiredHeightFixed32);

    image = image.scaleImage32(scaleXFixed32, scaleYFixed32);

    return image.getBitmap();
  }
  // Resize a bitmap proportionally (shrink or enlarge) by a  ratio factor
  public static Bitmap getScaledBitmapImage(String imagename, double ratio) {

    EncodedImage image = EncodedImage.getEncodedImageResource(imagename);

    int currentWidthFixed32 = Fixed32.toFP(image.getWidth());
    int currentHeightFixed32 = Fixed32.toFP(image.getHeight());

    double w = (double) image.getWidth() * ratio;
    double h = (double) image.getHeight() * ratio;
    int width = (int) w;
    int height = (int) h;

    int requiredWidthFixed32 = Fixed32.toFP(width);
    int requiredHeightFixed32 = Fixed32.toFP(height);

    int scaleXFixed32 = Fixed32.div(currentWidthFixed32, requiredWidthFixed32);
    int scaleYFixed32 = Fixed32.div(currentHeightFixed32, requiredHeightFixed32);

    image = image.scaleImage32(scaleXFixed32, scaleYFixed32);

    return image.getBitmap();
  }