Nonvirtual member functions

• int mouse_moved(int b1Down, int b2Down) - performs the necessary action when the mouse is moved while a button is pressed. The arguments indicate which buttons are currently down.
• void create_popup_menu(void) - goes through the definitions of the pop-up menu, and creates a PopupMenu object to store this data in the proper order and format.
• void create_key_commands(void) - creates the initial list of keyboard shortcuts; this is only done when the Mouse is initialized.
• void stop_rotation(void) - sets the current angular velocity to zero.
• int x(void) - returns the current x position of the Mouse, as measured from the lower-left corner. This just calls a similar (but virtual) function in DisplayDevice.
• int y(void) - as as x(), but for the vertical position.
• int button_down(int) - returns the current state of the given button.
• int move_mode(MoveMode, int = 0) - sets the current mouse mode. If the new mode is PICKING or LIGHT, the second argument must be given to indicate which picking mode or light. Otherwise, the second argument is ignored.
• MoveMode curr_move_mode(void) - returns current mode.
• char *move_mode_name(MoveMode) - returns a string describing the specified mode.
• int curr_pick_mode(void) - returns current picking mode, or -1 if the current mouse mode is not PICKING.
• int picking(void) - returns TRUE if somthing is being pickied, or FALSE otherwise.
• int create_user_menu(char *label) - indicates that a new user-customizable submenu should be added to the main menu, with the given label. The new menu will be initially empty.
• int add_user_menu_item(char *text, char *txtcmd) - adds a new user menu item to the main user submenu ... the name in the menu will be `text', and the command executed when that menu option is chosen is `txtcmd'.
• int add_user_menu_separator(void) - puts in a separator at the current end of the main user submenu.
• int add_user_submenu_item(char *submenu, char *text, char *txtcmd) - adds the command `txtcmd' to the submenu `submenu', under the name of `text' in that submenu.
• int add_user_submenu_separator(char *submenu) - adds a separator to the end of the given submenu.
• int add_user_key_command(char, const char *) - adds a new keyboard shortcut (or replaces a previous one), for the given key.