33     double fx0, fy0, xtemp, x, y, mu;  in calc_one_pixel()  local
44     y = 0;  in calc_one_pixel()
47     while (((x * x + y * y) <= 4) && (iter < max_iterations)) {  in calc_one_pixel()
48         xtemp = x * x - y * y + fx0;  in calc_one_pixel()
49         y = 2 * x * y + fy0;  in calc_one_pixel()
51         mu += exp(-sqrt(x * x + y * y));  in calc_one_pixel()
77     for (int y = 0; y < size_y; ++y) {  in clear()  local
78         area.set_pos(0, y);  in clear()
110     for (int y = y0; y < y1; ++y) {  in render_rect()  local
111         area.set_pos(0, y - y0);  in render_rect()
113             area.put_pixel(calc_one_pixel(x, y));  in render_rect()
157 bool fractal::check_point(int x, int y) const {  in check_point()
158     return x >= off_x && x <= off_x + size_x && y >= off_y && y <= off_y + size_y;  in check_point()
259 void fractal_group::mouse_click(int x, int y) {  in mouse_click()  argument
263     if (f0.check_point(x, y)) {  in mouse_click()
267     else if (f1.check_point(x, y)) {  in mouse_click()