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|
|
| import wx |
| import sys |
| import epics |
| from epics.wx import EpicsFunction, DelayedEpicsCallback |
|
|
| class PVDisplay(wx.Frame): |
| def __init__(self, pvname, parent=None, **kwds): |
| wx.Frame.__init__(self, parent, wx.ID_ANY, '', |
| wx.DefaultPosition, wx.Size(-1,-1),**kwds) |
| self.SetFont(wx.Font(11,wx.SWISS,wx.NORMAL,wx.BOLD,False)) |
| self.pvname = pvname |
|
|
| self.SetTitle("%s" % pvname) |
| |
| self.sizer = wx.GridBagSizer(3, 2) |
| panel = wx.Panel(self) |
| name = wx.StaticText(panel, label=pvname, size=(120, -1)) |
| self.val = wx.StaticText(panel, label='unconnected', size=(200, -1)) |
| self.info = wx.StaticText(panel, label='-- ' , size=(400,300)) |
| self.info.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD,False)) |
| |
| self.sizer.Add(wx.StaticText(panel, label='PV: ', size=(60, -1)), |
| (0, 0), (1, 1), wx.EXPAND, 1) |
| self.sizer.Add(wx.StaticText(panel, label='Value: ', size=(60, -1)), |
| (1, 0), (1, 1), wx.EXPAND, 1) |
| self.sizer.Add(wx.StaticText(panel, label='Info: ', size=(60, -1)), |
| (2, 0), (1, 1), wx.EXPAND, 1) |
| self.sizer.Add(name, (0, 1), (1, 1), wx.EXPAND, 1) |
| self.sizer.Add(self.val, (1, 1), (1, 1), wx.ALIGN_RIGHT|wx.EXPAND, 1) |
| self.sizer.Add(self.info, (2, 1), (2, 2), wx.ALIGN_LEFT|wx.EXPAND, 1) |
|
|
| panel.SetSizer(self.sizer) |
|
|
| self.needs_info = None |
| self.timer = wx.Timer(self) |
| self.Bind(wx.EVT_TIMER, self.onTimer, self.timer) |
|
|
| self.s1 = wx.BoxSizer(wx.VERTICAL) |
| self.s1.Add(panel, 1, wx.EXPAND, 2) |
| self.s1.Fit(self) |
| self.Refresh() |
| self.connect_pv() |
| |
| @EpicsFunction |
| def connect_pv(self): |
| self.pv = epics.PV(self.pvname, connection_callback=self.onConnect, |
| callback=self.onPV_value) |
|
|
| @EpicsFunction |
| def onTimer(self, evt): |
| if self.need_info and self.pv.connected: |
| self.info.SetLabel(self.pv.info) |
| self.timer.Stop() |
| self.needs_info = False |
| |
| @DelayedEpicsCallback |
| def onConnect(self, **kws): |
| self.need_info = True |
| self.timer.Start(25) |
| |
| @DelayedEpicsCallback |
| def onPV_value(self, name=None, char_value=None, **kws): |
| if len(char_value) > 90: |
| char_value = char_value[:90] |
| self.val.SetLabel(' %s' % char_value) |
| self.need_info = True |
| self.timer.Start(25) |
|
|
| |
| class NameCtrl(wx.TextCtrl): |
| def __init__(self, panel, value='', action=None, **kws): |
| self.action = action |
| wx.TextCtrl.__init__(self, panel, wx.ID_ANY, value='', |
| style=wx.TE_PROCESS_ENTER, **kws) |
| self.Bind(wx.EVT_CHAR, self.onChar) |
|
|
| def onChar(self, event): |
| if event.GetKeyCode() == wx.WXK_RETURN and \ |
| self.action is not None: |
| self.action(wx.TextCtrl.GetValue(self).strip()) |
| event.Skip() |
| |
|
|
| class ProbeFrame(wx.Frame): |
| def __init__(self, parent=None, **kwds): |
|
|
| wx.Frame.__init__(self, parent, wx.ID_ANY, '', |
| wx.DefaultPosition, wx.Size(-1,-1),**kwds) |
| self.SetTitle("Connect to Epics Records:") |
|
|
| self.SetFont(wx.Font(11,wx.SWISS,wx.NORMAL,wx.BOLD,False)) |
|
|
| sizer = wx.BoxSizer(wx.HORIZONTAL) |
| panel = wx.Panel(self) |
| label = wx.StaticText(panel, label='PV Name:') |
| self.pvname = NameCtrl(panel, value='', size=(175,-1), |
| action=self.onName) |
|
|
| sizer.Add(label, 0, wx.ALIGN_LEFT, 1) |
| sizer.Add(self.pvname, 1, wx.EXPAND, 1) |
| panel.SetSizer(sizer) |
| sizer.Fit(panel) |
| s = wx.BoxSizer(wx.VERTICAL) |
| s.Add(panel) |
| s.Fit(self) |
| self.Refresh() |
|
|
| def onName(self, value, wid=None, **kws): |
| PVDisplay(value, parent=self).Show() |
|
|
| if __name__ == '__main__': |
| app = wx.App(redirect=False) |
| ProbeFrame().Show() |
| app.MainLoop() |
|
|
