/**
* Draw the given polygon, filled with the specified colour.
*
* @param p The polygon to draw.
* @param col The colour to fill the polygon with.
*/
public void drawPolygonFilled(Polygon p, final Q col) {
// clip to the frame
p = p.intersect(this.targetImage.getBounds().asPolygon());
this.drawPolygon(p, col);
if (p.getNumInnerPoly() == 1) {
ScanRasteriser.scanFill(
p.points,
new ScanLineListener() {
@Override
public void process(final int x1, final int x2, final int y) {
ImageRenderer.this.drawHorizLine(x1, x2, y, col);
}
});
} else {
// final ConnectedComponent cc = new ConnectedComponent(p);
// cc.process(new BlobRenderer<Q>(this.targetImage, col));
final int minx = Math.max(0, (int) Math.round(p.minX()));
final int maxx = Math.min((int) Math.round(p.maxX()), targetImage.getWidth() - 1);
final int miny = Math.max(0, (int) Math.round(p.minY()));
final int maxy = Math.min((int) Math.round(p.maxY()), targetImage.getHeight() - 1);
final Pixel tmp = new Pixel();
for (tmp.y = miny; tmp.y <= maxy; tmp.y++) {
for (tmp.x = minx; tmp.x <= maxx; tmp.x++) {
if (p.isInside(tmp)) this.targetImage.setPixel(tmp.x, tmp.y, col);
}
}
}
}
/**
* Draw into this image the provided image at the given coordinates. Parts of the image outside
* the bounds of this image will be ignored.
*
* @param image The image to draw.
* @param x The x-coordinate of the top-left of the image
* @param y The y-coordinate of the top-left of the image
*/
public void drawImage(final I image, final int x, final int y) {
final int stopx = Math.min(this.targetImage.getWidth(), x + image.getWidth());
final int stopy = Math.min(this.targetImage.getHeight(), y + image.getHeight());
final int startx = Math.max(0, x);
final int starty = Math.max(0, y);
for (int yy = starty; yy < stopy; yy++)
for (int xx = startx; xx < stopx; xx++)
this.targetImage.setPixel(xx, yy, image.getPixel(xx - x, yy - y));
}
/**
* Draw into this image the provided image at the given coordinates ignoring certain pixels. Parts
* of the image outside the bounds of this image will be ignored. Pixels in the ignore list will
* be stripped from the image to draw.
*
* @param image The image to draw.
* @param x The x-coordinate of the top-left of the image
* @param y The y-coordinate of the top-left of the image
* @param ignoreList The list of pixels to ignore when copying the image
*/
public void drawImage(
final I image,
final int x,
final int y,
@SuppressWarnings("unchecked") final Q... ignoreList) {
final int stopx = Math.min(this.targetImage.getWidth(), x + image.getWidth());
final int stopy = Math.min(this.targetImage.getHeight(), y + image.getHeight());
final int startx = Math.max(0, x);
final int starty = Math.max(0, y);
for (int yy = starty; yy < stopy; yy++)
for (int xx = startx; xx < stopx; xx++) {
final Q val = image.getPixel(xx - x, yy - y);
if (Arrays.binarySearch(ignoreList, val, this.targetImage.getPixelComparator()) < 0)
this.targetImage.setPixel(xx, yy, val);
}
}
