public void paintComponent(Graphics g) throws RuntimeException {
int squarewidth = getSquareWidth();
int squareheight = getSquareHeight();
int hoffset = getHorizontalOffset();
int voffset = getVerticalOffset();
for (int x = 0; x < grid.maxX(); x++) {
for (int y = 0; y < grid.maxY(); y++) {
Cell tmp = grid.grabObjectAt(x, y);
if (tmp == null) {
g.setColor(Color.gray.darker());
} else {
g.setColor(tmp.getColor());
}
g.fillRect(
hoffset + x * squarewidth,
voffset + ((grid.maxY() - y) * squareheight),
squarewidth - 1,
squareheight - 1);
}
}
}
protected int getSquareHeight() {
int sheight = getRealHeight() / (grid.maxY() + 1);
if (sheight > 0) {
return sheight;
} else {
return 1;
}
}
public Cell getObjectAt(int x, int y) {
int grid_x = (x - getHorizontalOffset()) / getSquareWidth();
int grid_y = Math.abs(((y - getVerticalOffset()) / getSquareHeight()) - grid.maxY());
return grid.getObjectAt(grid_x, grid_y);
}
protected int getVerticalOffset() {
int offset = (getRealHeight() - (getSquareHeight() * (grid.maxY() + 2))) / 2;
return offset;
}