Experimental Physics and
Industrial Control System

<[email protected]> · Fri, 24 Feb 2012 09:45:43 +0000

Sardana is a large QT collaborative program in the Tango control system world.  You may find it useful to invite a member of that team to the proposed workshop. I have cc'd this to Tiago Coutinho whose is a lead developer of the system.

http://www.tango-controls.org/static/sardana/latest/doc/html/

___________________________________________________________
Paul Gibbons, [email protected] Tel: +44 1235 778512 Data Acquisition Team Leader, http://www.diamond.ac.uk/ Diamond Light Source, Chilton, Didcot, Oxon, OX11 0DE, U.K.

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Ernest L. Williams Jr.
Sent: 23 February 2012 22:36
To: Matt Newville
Cc: [email protected]
Subject: Re: QT-based tools: Expressions of interest requested

Hi,

I am carving out space for a QT Collaboration Workshop/Kickoff at the next EPICS meeting being held at SLAC.

This will be a great opportunity to discuss ideas and try to forge a community collaboration.

I have both Monday and/or Tuesday (April 23, 24) open for a workshop.

Please email me directly if you are interested.
email: [email protected]

I will need a head count to plan for space.

PS: I am also hoping that John Sinclair will share what experiences he had in starting a port of EDM to Qt.
I believe Zen Szalata gave it a drive "around the block" in the past. :)

Cheers,
Ernest

Matt Newville wrote:
> Hi Emmanuel,
>
> On Thu, Feb 23, 2012 at 11:48 AM, Emmanuel Mayssat <[email protected]> wrote:
>   
>> Ian,
>>
>> It seems they are more and more people using Qt.... Great!
>> We use pyqt here. Would love to be part of a collaboration to develop
>> more...
>> Do you have a pointer to your pyqt interface to epics?
>>
>> Regards,
>> --
>> Emmanuel
>>     
>
> Sorry to jump into this tangent of the Qt conversation.  I have very
> little experience with Qt, but a simple probe-like application (see
> below) to connect Qt with Epics through python is remarkably simple.
> I'd be happy to add  "epics-aware" Qt widgets to pyepics, but don't
> know enough Qt to do this myself.
>
> --Matt Newville
>
> This is using pyside, tested on Windows only.
>
> #!/usr/bin/env python
> import epics
> import sys
> from PySide.QtGui import QWidget, QLabel, QLineEdit, QGridLayout, QApplication
>
> class PVProbe(QWidget):
>     def __init__(self, parent=None):
>         QWidget.__init__(self, parent)
>
>         name_label  = QLabel("PV Name:")
>         self.pvname = QLineEdit()
>         value_label = QLabel("PV Value:")
>         self.value  = QLabel("    ")
>
>         self.pvname.returnPressed.connect(self.onPVNameReturn)
>         self.pv = None
>
>         grid = QGridLayout()
>         grid.addWidget(name_label,   0, 0)
>         grid.addWidget(self.pvname,  0, 1)
>         grid.addWidget(value_label,  1, 0)
>         grid.addWidget(self.value,   1, 1)
>
>         self.setLayout(grid)
>         self.setWindowTitle("PySide PV Probe:")
>
>     def onPVNameReturn(self):
>         self.pv = epics.PV(self.pvname.text(), callback=self.onPVChange)
>
>     def onPVChange(self, pvname=None, char_value=None, **kws):
>         self.value.setText(char_value)
>
> if __name__ == '__main__':
>     app = QApplication(sys.argv)
>     probe = PVProbe()
>     probe.show()
>     sys.exit(app.exec_())
>
>   

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System