9. Rectangle

9.1. Stroked Rectangle

void btprnt_draw_rect(btprnt_region *r,
                      int x, int y,
                      int w, int h,
                      int clr);

void btprnt_draw_rect(btprnt_region *r,
                      int x, int y,
                      int w, int h,
                      int clr)
{
    btprnt_draw_hline(r, x, y, w, clr);
    btprnt_draw_hline(r, x, y + (h - 1), w, clr);
    btprnt_draw_vline(r, x, y, h, clr);
    btprnt_draw_vline(r, x + (w - 1), y, h, clr);
}

9.2. Filled Rectangle

void btprnt_draw_rect_filled(btprnt_region *r,
                             int xpos, int ypos,
                             int w, int h,
                             int clr);

void btprnt_draw_rect_filled(btprnt_region *r,
                             int xpos, int ypos,
                             int w, int h,
                             int clr)
{
    int x, y;

    for (y = 0; y < h; y++) {
        for (x = 0; x < w; x++) {
            btprnt_region_draw(r,
                               xpos + x,
                               ypos + y,
                               clr);
        }
    }
}

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