On 30/03/2015 20:37, John C. Peterson wrote:
Hi John,
> I'm working a cleaning up some other small problems with WSPR-X and one
> of them is getting the ComboBox widgets with serial port entries (for
> CAT, PTT) to have entries that are meaningful for the given target
> platform (e.g. MACX, UNIX or WIN32).
>
> On WIN32, meaningful entries would be COM1... while on UNIX they would
> be /dev/ttyS0... /dev/ttyUSB0... and something similar on OS X. One
> could put ALL of them into the ComboBoxen with qtcreator, but I suspect
> this could be a source of confusion for end users without experience on
> multiple platforms.
>
> So far, the best way I have identified to approach this is to have
> a single entry ("None") in the XML file ouput by qtcreator. Then at
> runtime during the UI setup phase, make platform specific calls to
> ui.ComboBox->addItem( ) to add meaningful entries. These can be made
> platform specific using standard cpp constructs like #ifdef.
>
> Another approach would be to have platform specific devsetup.ui XML
> files, but my first impression is that is asking for trouble when
> it comes to keeping them synchronized as the interface evolves.
>
> I've worked a fair bit with GUI toolkits, but not very much with QT.
> I was curious if anyone knew of a better approach than dealing with
> the issue at runtime...
Simple answer, QtSerialPortInfo::availablePorts(). For an implementation
that uses it look at Configuration.cpp in ^/branches/wsjtx recently
added code to use it to enumerate ports. Works FB on Windows/Mac/Linux.
WSJT-X has a couple of complexities with port names but the principle is
very simple. Beware of QSerialPortInfo::isBusy() to check for free ports
as that opens the port which will toggle DTR & RTS on Linux and Mac
which might interfere with PTT switching arrangements.
>
> 73, John
>
73
Bill
G4WJS.
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