| | | Plug-in widgets |
Plug-ins
may be launched from buttons and/or menu entries that are created
for them in certain toplevel windows. Information on these windows and
where the widgets can be created is kept on the global array
PLGSWelcomed (defined in file plugins.tcl). Each index
is a Tcl glob pattern for the paths of windows (this allows
for similar windows to be dealt with in the same way). Each element is
a list of lists whose heads are widget types (button or
menu) and whose rests are sub-window paths, relative to the
path matching the glob pattern, where the plug-in widgets or entries
will be inserted. For a button the sub-window is a frame managed by
grid and the button is created at the right of the lower right
corner. For a menu entry, the sub-window is a menu and the entry will
be the last one. The widget will be disabled if the plug-in cannot be
used according to the evaluation of the corresponding expression.
A GPSMan procedure that creates a toplevel window having support for
plug-ins calls the procedure AttachPlugIns that in turn
creates the widgets for all plug-ins that can be called from the
window. This creation fails silently for any widget whose sub-window
does not exist.
GPSMan User Manual
GPSMan User Manual and the GPSMan logo images by Miguel Filgueiras are licensed under a Creative
Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
| | | Plug-in widgets |