void lview_mouse(int x, int y);
void draw_lview(void);
void cell_to_pos(int cx, int cy, float *px, float *py);
struct cell *pos_to_cell(float px, float py, int *cx, int *cy);
void lview_mouse(int x, int y);
void draw_lview(void);
void cell_to_pos(int cx, int cy, float *px, float *py);
struct cell *pos_to_cell(float px, float py, int *cx, int *cy);