Method has

src/fl/math/xymap.h:102–104

    }

    bool has(u16 x, u16 y) const FL_NOEXCEPT {
        return (x < width) && (y < height);
    }

    bool has(int x, int y) const FL_NOEXCEPT {
        return (x >= 0) && (y >= 0) && has((u16)x, (u16)y);