Version 5.0 The LEDA User Manual

17.3 Panels ( panel )
1. Definition
Panels are windows consisting of a panel section only (cf. section 17.2). They are used
for displaying text messages and updating the values of variables.
#include < LEDA/graphics/panel.h >
2. Creation
panel P ; creates an empty panel P .
panel P (string s); creates an empty panel P with header s.
panel P (int w, int h);
panel P (int w, int h, string s);
creates an empty panel P of width w and height h.
creates an empty panel P of width w and height h with header s.
3. Operations
All window operations for displaying, reading, closing and adding panel items are available
(see section 17.2). There are two additional operations for opening and reading panels.
int
int
P.open(int x = window :: center, int y = window :: center)
P.display(x, y) + P.read mouse( ) + P.close( ).
P.open(window& W, int x = window :: center, int y = window :: center)
P.display(W, x, y) + P.read mouse( ) + P.close( ).