One way of doing this is the following (there may be better ones):
Add a
static signal to your class, und connect to that static signal in your
constructor(s). If you want then to sent a signal to all instances,
just
trigger the static one ...
antionio
I /think/ I get what you are saying... but doesn't a static signal
require
a staic function? And static functions can only work with other static
variables and functions - nothing can happen to specific instances...
Static functions in classes must not acces non-static data, but
non-static methods may acces static variables/functions.
And I've not read that signals can propagate to children in libsigc ...
It may be easier to maintain a list of pointers somewhere, so I can have
direct access...
-Sud.
_______________________________________________
What i mean is something like this:
class Example
{
public:
Example()
{
signalForAllExamples().connect(sigc::mem_fun(*this,
&Example::triggerMe));
}
Example(const Example& copyMe) { /* the same like for Example() */ }
void triggerMe() { /* do something */ }
static sigc::signal<void> signalForAllExamples() { return
sig_forAllExamples_; }
private:
static sigc::signal<void> sig_forAllExamples_;
};
A simple Example::signalForAllExamples().emit() should then do what
you want ....
antonio
By the way, it would normally be a good idea to derive Example from
sigc::trackable, so that the connection is automatically destroyed when
an instance of example get's deleted/out of scope. Note that this is not
neccesairy for classes derived from gtkmm-classes, as they are allready
derived from that class.
antonio
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