Version 5.0 The LEDA User Manual

void
void
void
void
void
int
int
GW.set draw object fcn(GeoBaseScene ∗ sc,
window& (∗fcn)(window& ,
const typename T :: value type& , int w))
sets a function fcn for scene (∗sc) that will be called
for drawing the objects of scene (∗sc). If no such
function is set (the default), the output operator is
used.
GW.set activate handler(geo scene sc, void (∗f)(geo scene))
sets a handler function f that is called with sc as
parameter when the user activates sc.
GW.set edit loop handler(bool (∗f)(const GeoWin& gw))
sets a handler function f that is called periodically in
the interactive mode. If this handler returns true, we
will leave the interactive mode.
GW.set quit handler(bool (∗f)(const GeoWin& gw))
sets a handler function f that is called when the user
clicks the quit menu button. f should return true for
allowing quiting, false otherwise.
GW.set done handler(bool (∗f)(const GeoWin& gw))
GW.set edit mode(geo scene sc, int emode)
GW.get edit mode(geo scene sc)
sets a handler function f that is called when the user
clicks the done menu button. f should return true for
allowing quiting, false otherwise.
sets the edit mode of scene sc to emode.
return the edit mode of scene sc.
h) Scene group Operations
GeoWin can manage scenes in groups. It is possible to add and remove scenes to/from
groups. Various parameters and dependences can be set for whole groups. Note that
geo scenegroup is a pointer to a scene group.
geo scenegroup GW.new scenegroup(string name)
Creates a new scene group with name name and returns
a pointer to it.
geo scenegroup GW.new scenegroup(string name, const list& LS)
Creates a new scene group name and adds the scenes
in LS to this group.
void
GW.insert(geo scenegroup GS, geo scene sc)
adds sc to scene group GS .