/** Write out our image buffer as a PNG image. */
public void writeMosaicImage(File out) throws IOException {
if (currPixels == Integer.MAX_VALUE) {
throw new IOException("Unable to create arrange images in mosaic " + out);
}
if (currPixels > maxPixels) {
throw new IOException(
"Image too big ("
+ currPixels
+ " > "
+ maxPixels
+ ") -- see part 3.2 section G.5 "
+ "table G-4 \"Image size\".\n");
}
BufferedImage buffer = new BufferedImage(currWidth, currHeight, BufferedImage.TYPE_INT_ARGB);
Graphics2D graphics = (Graphics2D) buffer.getGraphics();
graphics.setComposite(AlphaComposite.Src);
graphics.setColor(Color.yellow);
graphics.fillRect(0, 0, buffer.getWidth(), buffer.getHeight());
for (MosaicPart part : parts) {
Rectangle r = part.getPlacement();
part.getImage().drawScaled(graphics, r, null);
}
boolean ok = ImageIO.write(buffer, "PNG", out);
if (!ok) {
throw new IOException("No writer found");
}
}
void paintStatus(Graphics2D g) {
if (parts == null) {
return;
}
g.setComposite(AlphaComposite.Src);
synchronized (parts) {
if (currWidth == 0 || currHeight == 0 || progressComponent == null) {
return;
}
float scaleX = ((float) progressComponent.getWidth()) / currWidth;
float scaleY = ((float) progressComponent.getHeight()) / currHeight;
if (scaleX < scaleY) {
scaleY = scaleX;
} else {
scaleX = scaleY;
}
g.setColor(Color.yellow);
g.fillRect(0, 0, (int) (currWidth * scaleX), (int) (currHeight * scaleY));
Rectangle p = new Rectangle();
for (MosaicPart part : parts) {
Rectangle r = part.getPlacement();
p.x = (int) (r.x * scaleX);
p.y = (int) (r.y * scaleY);
p.width = (int) (r.width * scaleX);
p.height = (int) (r.height * scaleY);
part.getImage().drawScaled(g, p, progressComponent);
}
}
}
