On Tuesday 15 January 2002 6:37 pm, Angus Leeming wrote:
> Here's a second question. Many of the other controllers (15 in fact) are
> derived from ControlDialog, so again I'll split ControlDialog.h into
> ControlDialog.h and ControlDialog.tmpl
>
> However, there are only two instatiations of ControlDialog:
> ControlDialog<ControlConnectBD>
> ControlDialog<ControlConnectBI>
>
> is there a way therefore of changing something in ControlDialog.tmpl that
> results in only two recompiles? Ie, rather than #include
"ControlDialog.tmpl"
> in all 15 files of the derived classes, I'd like to create
> ControlDialog<ControlConnectBD> and ControlDialog<ControlConnectBI>
>
> Can this be done? If so, how?
answering my own question:
file "ControlDialogImpl.h"
class ControlConnectBD;
class ControlConnectBI;
struct ControlDialogBD : public ControlDialog<ControlConnectBD>
{
ControlDialogBD();
};
struct ControlDialogBI : public ControlDialog<ControlConnectBD>
{
ControlDialogBI();
};
file "ControlDialogImpl.C"
#include "ControlDialogImpl.h"
#include "ControlDialog.tmpl"
ControlDialogBD::ControlDialogBD()
: ControlDialog<ControlConnectBD>
{}
ControlDialogBI::ControlDialogBI()
: ControlDialog<ControlConnectBD>
{}
Derive the 15 classes from ControlDialogBD and ControlConnectBI. These,
therefore need #include that .h file.
Create the two instatiations by compiling the ControlDialogImpl.C file.
Bingo!
But are you happy with this?
Angus
