i just try to use FloodFill class and i found strange problem with coloring.
Lets start with code:
public class FloodFill {
public void floodFill(Bitmap image, Point node, int targetColor,
int replacementColor) {
int width = image.getWidth();
int height = image.getHeight();
int target = targetColor;
int replacement = replacementColor;
if (target != replacement) {
Queue<Point> queue = new LinkedList<Point>();
do {
int x = node.x;
int y = node.y;
while (x > 0 && image.getPixel(x - 1, y) == target) {
x--;
}
boolean spanUp = false;
boolean spanDown = false;
while (x < width && image.getPixel(x, y) == target) {
image.setPixel(x, y, replacement);
if (!spanUp && y > 0 && image.getPixel(x, y - 1) == target) {
queue.add(new Point(x, y - 1));
spanUp = true;
} else if (spanUp && y > 0
&& image.getPixel(x, y - 1) != target) {
spanUp = false;
}
if (!spanDown && y < height - 1
&& image.getPixel(x, y + 1) == target) {
queue.add(new Point(x, y + 1));
spanDown = true;
} else if (spanDown && y < height - 1
&& image.getPixel(x, y + 1) != target) {
spanDown = false;
}
x++;
}
} while ((node = queue.poll()) != null);
}
}
}
And method where i use FloodFill:
public void colorize()
{
bmp = ((BitmapDrawable)view.getDrawable()).getBitmap();
view.setOnTouchListener(new ImageView.OnTouchListener()
{
@Override
public boolean onTouch(View v, MotionEvent event)
{
int x = (int)event.getX();
int y = (int)event.getY();
...
flood.floodFill(bmp, new Point(x, y), bmp.getPixel(x, y), color);
view.setImageBitmap(bmp);
...
}
});
}
If i try to use standard android color f.g: Color.RED and Color.GREEN, everything works fine. I can replace f.g red with green its works, but if i try to use custom color like this: f.g. Color.rgb(34, 198, 67) i get single point colored instead of filled shape.
Can You help me to find a solution for this problem?
Edit1:
I spoted something interesting. Custom colors seems to be different values on some pixels but i dont know why if i using flood-fill.
