mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-12-28 14:58:36 +00:00
6d678c927c
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@808 a592a061-630c-0410-9148-cb99ea01b6c8
97 lines
2.2 KiB
Plaintext
97 lines
2.2 KiB
Plaintext
The following things are be available to powerusers.
|
|
|
|
- changing the return type of a slot
|
|
- changing the paramete types of slot
|
|
- signal overloading
|
|
- mixed type signals
|
|
|
|
=======================================================================
|
|
* Slot type changing
|
|
|
|
Slots can be made to change their input types based on a static function.
|
|
|
|
Example:
|
|
|
|
// write some conversion functions
|
|
int convert_mysignal_c(Callback1<int,const char*> *s,const string &str)
|
|
{return s->call(str.c_str());}
|
|
Slot1<int,const string&> myconvert(const Slot1<int,const char*> &s)
|
|
{return convert(s,convert_mysignal_c);}
|
|
|
|
|
|
Signal1<int,const string&> mysignal;
|
|
int foo(const char*);
|
|
mysignal.connect(myconvert(slot(foo));
|
|
|
|
|
|
* Signal overloading
|
|
|
|
One signal can have multiple behavior for a single signal name.
|
|
This is done with multiple inheritance.
|
|
|
|
Example:
|
|
|
|
class MyClass
|
|
{
|
|
public:
|
|
class MySig
|
|
:public Signal1<int,int>,
|
|
public Signal1<void,double>
|
|
{} mysig;
|
|
} myclass;
|
|
|
|
int foo(int);
|
|
void foo2(double);
|
|
myclass.mysig.connect(slot(foo));
|
|
myclass.mysig.connect(slot(foo2));
|
|
myclass.mysig(1); // calls foo
|
|
myclass.mysig(1.0); // calls foo2
|
|
|
|
|
|
|
|
* Mixed type signals
|
|
|
|
A signal can be made to accept a wide group of slots with similar data
|
|
types.
|
|
|
|
Example:
|
|
|
|
class A
|
|
{
|
|
|
|
public:
|
|
class MySig: public Signal1<int,string&>
|
|
{
|
|
static int _mysig_convert(Callback1<int,const char*> *s,
|
|
const string &str)
|
|
{return s->call(str.c_str());}
|
|
public:
|
|
Connection connect(const Slot1<int,const char*> &s)
|
|
{return connect(convert(s,_mysig_convert));}
|
|
} mysig;
|
|
};
|
|
|
|
int foo(const char* c);
|
|
int foo2(string& s);
|
|
|
|
mysig.connect(slot(foo)); // this is acceptable
|
|
mysig.connect(slot(foo2)); // this is also acceptable
|
|
string h="hello";
|
|
mysig(h); // calls both foo and foo2.
|
|
|
|
|
|
Still in works
|
|
----------------
|
|
* Signal overloading over classes
|
|
|
|
This should be extendable accross different levels of a class.
|
|
|
|
Example: (details still in progress)
|
|
|
|
|
|
|
|
* Signals with translation
|
|
|
|
Signals can be made to convert and proxy accross other systems.
|
|
|