MythTV: SlotRelayer.h Source File

00001 #ifndef _SLOTRELAYER_H_
00002 #define _SLOTRELAYER_H_
00003 
00004 #include <QObject>
00005 class QString;
00006 
00007 /* This is a simple class that relays a QT slot to a function pointer.
00008  * Useful when you have a relativly small app like mythcommflag that you
00009  * don't want to wrap inside a QObject enheriting class. 
00010  *
00011  * Unfortunattely QT does not allow this class to be templatized for all
00012  * possible parameter types, so manual labor is in order if you need types other
00013  * than the ones I made here
00014  */
00015 
00016 class SlotRelayer : public QObject
00017 {
00018     Q_OBJECT
00019 
00020   public:
00021     SlotRelayer(void (*fp_in)(const QString&)) :
00022         fp_qstring(fp_in), fp_void(0) {}
00023     SlotRelayer(void (*fp_in)()) : fp_qstring(0), fp_void(fp_in) {};
00024 
00025   public slots:
00026     void relay(const QString& arg) {if (fp_qstring) fp_qstring(arg);}
00027     void relay() {if (fp_void) fp_void();}
00028 
00029   private:
00030     virtual ~SlotRelayer() {}
00031     void (*fp_qstring)(const QString&);
00032     void (*fp_void)();
00033 };
00034 
00035 #endif
00036 
00037 
00038 /* vim: set expandtab tabstop=4 shiftwidth=4: */