Changeset 730 for moxy/trunk/src/moxy/vc_pv.py

Timestamp:

Dec 20, 2011 4:14:28 PM (12 years ago)

Author:

jemian

Message:

work-in-progress

File:

• moxy/trunk/src/moxy/vc_pv.py (modified) (3 diffs)

moxy/trunk/src/moxy/vc_pv.py

@@ -29 +29 @@
 
 __svnid__ = "$Id$"
+COLOR_MOVING = wx.Colour(179, 250, 142)         # pale green
+COLOR_NOT_MOVING = wx.Colour(200, 191, 140)     # not exactly background color
+COLOR_PALE_PURPLE = wx.Colour(200, 200, 255)    # my name for this
+COLOR_LIGHTGREEN = wx.Colour(200, 255, 200)     # my name for this
+COLOR_LIGHTRED = wx.Colour(255, 200, 200)       # my name for this
 
 
@@ -35 +40 @@
 
 class DemoView(wx.Frame):
+    '''
+    Show an EPICS PV connection.
+    Allow it to connect and disconnect.
+    (This is like CA Probe.)
+    '''
+    
+    _cb_counter = 0
     
     def __init__(self, pvname = ''):
         self.pvname = pvname
+        self.value = ''
+        self.state = 'not connected'
+        self.remarks = ''
+        self.pv = None
+        
         wx.Frame.__init__(self, id=wx.ID_ANY, name=u'Frame1', 
             parent=None, title=u'PV Connection',)
-        #self.SetClientSize(wx.Size(732, 439))
+        #self.SetClientSize(wx.Size(750, 440))
         self.SetToolTipString(u'PV Connection')
         
         self._init_widgets()
-        self._init_sizers()
 
     def _init_widgets(self):
         self.panel = wx.Panel(id=wx.ID_ANY, name='panel1', parent=self)
-
-        #self.sbTop = wx.StaticBox(id=wx.ID_ANY,
-        #      label=u'PV name and value', name='sbTop', parent=self.panel, size=wx.Size(300, 100),)
-        #self.sbTop.SetToolTipString(u'PV name and value')
-
-        #self.sbBottom = wx.StaticBox(id=wx.ID_ANY,
-        #      label='connection info', name='sbBottom', parent=self.panel, size=wx.Size(300, 100),)
-        #self.sbBottom.SetToolTipString(u'EPICS connection info')
-
-        self.genButton1 = wx.lib.buttons.GenButton(id=wx.ID_ANY,
-              label=u'Connect', name='connectButton', parent=self.panel,)
-        self.genButton1.SetToolTipString(u'Connect with EPICS PV')
-        self.genButton1.Bind(wx.EVT_BUTTON, self.doConnectButton)
-
-        self.genButton2 = wx.lib.buttons.GenButton(id=wx.ID_ANY,
-              label=u'Disconnect', name='disconnectButton', parent=self.panel,)
-        self.genButton2.SetToolTipString(u'Disconnect from EPICS PV')
-        self.genButton2.Bind(wx.EVT_BUTTON, self.doDisconnectButton)
-        
-        # wx.StaticBoxSizer( wx.StaticBox( parent_window, id, "label" ), wx.HORIZONTAL )
-    
-    def _init_sizers(self):
         self.panelSizer = wx.BoxSizer(orient=wx.VERTICAL)
+        self.panelSizer.AddSizer(self._init_upper_part(self.panel), 1, border=0, flag=wx.EXPAND)
+        self.panelSizer.AddSizer(self._init_lower_part(self.panel), 1, border=0, flag=wx.EXPAND)
+        self.panelSizer.AddSizer(self._init_buttons(self.panel), 0, border=0, flag=wx.EXPAND)
         self.panel.SetSizer(self.panelSizer)
-        #self.panelSizer.AddWindow(self.sbTop, proportion=1, border=0, flag=wx.EXPAND)
-        #self.panelSizer.AddWindow(self.sbBottom, proportion=1, border=0, flag=wx.EXPAND)
-        self.buttonSizer = wx.BoxSizer(orient=wx.HORIZONTAL)
-        self.panelSizer.AddSizer(self.buttonSizer, 0, border=0, flag=wx.EXPAND)
-        self.buttonSizer.AddWindow(self.genButton1, proportion=1, border=0, flag=wx.EXPAND)
-        self.buttonSizer.AddWindow(self.genButton2, proportion=1, border=0, flag=wx.EXPAND)
-        
-        #self.sbTopSizer = wx.StaticBoxSizer(self.sbTop, wx.VERTICAL)
-        #self.sbBottomSizer = wx.StaticBoxSizer(self.sbBottom, wx.VERTICAL )
-        
-    def _example_(self, parent):
-        '''
-        StaticBoxSizer example
-        
-        create the control items,
-        defines self.motorList dictionary,
-        returns FlexGridSizer object
+
+    def _init_upper_part(self, parent):
+        '''
+        edit the PV name string if not connected
         '''
         sbox = wx.StaticBox(parent, id=wx.ID_ANY,
-              label='watch EPICS motors', style=0)
+              label='PV name and value', style=0)
         sbs = wx.StaticBoxSizer(sbox, wx.VERTICAL)
-        fgs = wx.FlexGridSizer(rows=4, cols=3, hgap=4, vgap=4)
-
-        # column labels
-        for item in self.AXIS_LABELS:
-            fgs.Add(
-                 wx.StaticText(parent, wx.ID_ANY, item),
-                 0, flag=wx.EXPAND)
-        # one motor axis per row
-        self.motorList = {}
-        for axis in self.AXIS_NAMES:
-            fgs.Add(
-                 wx.StaticText(parent, wx.ID_ANY, axis, style=wx.ALIGN_RIGHT),
-                 0, flag=wx.EXPAND)
-            D = {}
-            for field in self.AXIS_FIELDS:
-                text = '[%s].%s' % (axis, field)
-                widget = wx.TextCtrl(parent, wx.ID_ANY, text, style=wx.TE_READONLY|wx.ALIGN_RIGHT)
-                widget.SetBackgroundColour(self.NOT_MOVING_COLOR)
-                widget.SetToolTipString("motor,%s,%s" % (axis, field))
-                widget.SetFont(self.basicFont)
-                fgs.Add(widget, 0, flag=wx.EXPAND)
-                D[field] = widget
-            self.motorList[axis] = D
-
+        fgs = wx.FlexGridSizer(rows=2, cols=2, hgap=4, vgap=4)
         fgs.AddGrowableCol(1)
-        fgs.AddGrowableCol(2)
-
         sbs.Add(fgs, 0, wx.EXPAND|wx.ALIGN_CENTRE|wx.ALL, 5)
 
+        self.w_pvname = wx.TextCtrl(parent=parent, id=wx.ID_ANY)
+        self.w_pvname.SetEditable(True)
+        self.w_value = wx.TextCtrl(parent=parent, id=wx.ID_ANY)
+        self.w_value.SetEditable(False)
+        
+        self.SetPV(self.pvname)
+        self.SetValue(self.value)
+
+        fgs.Add(wx.StaticText(parent, wx.ID_ANY, 'one'), 0, flag=wx.EXPAND)
+        fgs.Add(self.w_pvname, 0, flag=wx.EXPAND)
+        fgs.Add(wx.StaticText(parent, wx.ID_ANY, 'three'), 0, flag=wx.EXPAND)
+        fgs.Add(self.w_value, 0, flag=wx.EXPAND)
+
         return sbs
+
+    def _init_lower_part(self, parent):
+        '''
+        show connection state and something else useful
+        '''
+        sbox = wx.StaticBox(parent, id=wx.ID_ANY,
+              label='connection status', style=0)
+        sbs = wx.StaticBoxSizer(sbox, wx.VERTICAL)
+        fgs = wx.FlexGridSizer(rows=2, cols=1, hgap=4, vgap=4)
+        fgs.AddGrowableCol(0)
+        sbs.Add(fgs, 0, wx.EXPAND|wx.ALIGN_CENTRE|wx.ALL, 5)
+        
+        self.w_state = wx.TextCtrl(parent=parent, id=wx.ID_ANY)
+        self.w_state.SetEditable(False)
+        self.w_remarks = wx.TextCtrl(parent=parent, id=wx.ID_ANY)
+        self.w_remarks.SetEditable(False)
+        
+        self.SetState(self.state)
+        self.SetRemarks(self.remarks)
+        
+        fgs.Add(self.w_state, 0, flag=wx.EXPAND)
+        fgs.Add(self.w_remarks, 0, flag=wx.EXPAND)
+
+        return sbs
+    
+    def _init_buttons(self, parent):
+        '''
+        build the buttons row and place it in a sizer, return the sizer
+        '''
+        self.connectButton = self._my_button(parent, 
+              label=u'Connect', name='connectButton', 
+              tip=u'Connect with EPICS PV', 
+              binding=self.doConnectButton)
+        self.disconnectButton = self._my_button(parent, 
+              label=u'Disconnect', name='disconnectButton', 
+              tip=u'Disconnect from EPICS PV', 
+              binding=self.doDisconnectButton)
+
+        sizer = wx.BoxSizer(orient=wx.HORIZONTAL)
+        self.panelSizer.AddSizer(sizer, 0, border=0, flag=wx.EXPAND)
+        sizer.AddWindow(self.connectButton, proportion=1, border=0, flag=wx.EXPAND)
+        sizer.AddWindow(self.disconnectButton, proportion=1, border=0, flag=wx.EXPAND)
+        return sizer
+        
+    def _my_button(self, parent, label, name, tip, binding):
+        '''
+        Create a button and bind it to a method.
+        Return the button object
+        '''
+        button = wx.lib.buttons.GenButton(id=wx.ID_ANY,
+              label=label, name=name, parent=parent,)
+        button.SetToolTipString(tip)
+        button.Bind(wx.EVT_BUTTON, binding)
+        return button
 
     def doConnectButton(self, event):
         event.Skip()
         print "Connect button pressed"
+        self.w_pvname.SetEditable(False)
+        pvname = self.w_pvname.GetValue()
+        if len(pvname.strip()) > 0:
+            self.pvname = pvname
+            self.pv = PvConnection(pvname)
+            kw = {'vc_pv': True}
+            # TODO: we want a PV connection callback, as well
+            self.pv.connect(self.callback, **kw)
 
     def doDisconnectButton(self, event):
         event.Skip()
         print "Disconnect button pressed"
-    
+        self.w_pvname.SetEditable(True)
+        self.pv = None      # throw away the PV connection
+
+    def SetPV(self, value):
+        self.pvname = str(value)
+        self.w_pvname.SetValue( self.pvname )
+
+    def SetRemarks(self, value):
+        self.remarks = str(value)
+        self.w_remarks.SetValue( self.remarks )
+
+    def SetState(self, value):
+        self.state = str(value)
+        self.w_state.SetValue( self.state )
+
+    def SetValue(self, value):
+        self.value = str(value)
+        self.w_value.SetValue( self.value )
+    
+    def callback(self, **kw):
+        "generic monitor callback"
+        print kw
+        self.SetRemarks(kw['cb_info'])
+        self.SetValue(kw['value'])
+        self._cb_counter += 1
+        color = self.ColorSelector(self._cb_counter)
+        print self._cb_counter, color
+        self.w_value.SetBackgroundColour(color)
+    
+    def ColorSelector(self, index):
+        clut = [ COLOR_NOT_MOVING, COLOR_MOVING, COLOR_PALE_PURPLE, COLOR_LIGHTGREEN, COLOR_LIGHTRED, ]
+        return clut[index % len(clut)]
+
 
 # - - - - - - - - - - - - - - - - - - methods
@@ -142 +208 @@
     app = wx.PySimpleApp()
     frame = DemoView('Godzilla')
+    frame.SetPV('pj:test')
+    frame.SetValue( 'loves Tokyo' )
+    frame.SetState( 'just started' )
     frame.Show()