// 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();
}
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;
}
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 EncodedImage ResizeToWidth(EncodedImage ei, int wsize) {
if (wsize != 0) {
int prew, prey, factor;
prew = ei.getWidth();
prey = ei.getHeight();
factor = wsize / prew;
ei = ei.scaleImage32(wsize, (prey * factor));
}
return ei;
}
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();
}
// 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();
}