00001 #!/usr/local/bin/python
00002 #
00003 # Copyright 2004
00004 # by
00005 # The Board of Trustees of the
00006 # Leland Stanford Junior University.
00007 # All rights reserved.
00008 #
00009
00010
00011 __facility__ = "Trigger"
00012 __abstract__ = "Bar widget for trigger display"
00013 __author__ = "Martin Kocian, SLAC"
00014 __date__ = ("$Date: 2005/05/16 18:30:35 $").split(' ')[1]
00015 __version__ = "$Revision: 2.1 $"
00016 __release__ = "$Name: R04-12-00 $"
00017 __credits__ = "SLAC"
00018
00019 from qt import *
00020 import sys
00021
00022 class bar (QWidget):
00023
00024 def __init__(self,parent= None,name = None,fl = 0):
00025 QWidget.__init__(self,parent,name,fl)
00026 self.__val=0
00027 self.__rval=0
00028 self.__fullscale=10
00029 self.__color=QColor("green")
00030 self.__orientation=0 # vertical
00031 self.__minorab=0
00032 self.__minorcolor=QColor("yellow")
00033 self.__minorlevel=0
00034 self.__majorab=0
00035 self.__majorcolor=QColor("red")
00036 self.__majorlevel=0
00037 if not name:
00038 self.setName("bar")
00039
00040
00041 self.languageChange()
00042
00043 self.clearWState(Qt.WState_Polished)
00044
00045
00046 def languageChange(self):
00047 self.setCaption(self.__tr("Form1"))
00048
00049
00050
00051 def __tr(self,s,c = None):
00052 return qApp.translate("bar",s,c)
00053 def setColor(self,col):
00054 self.__color=QColor(col)
00055 self.update()
00056 def setMinor(self,level,abovebelow=1,color="yellow"):
00057 #ab=0 is off ab=1 is alarm above level, -1 is alarm below level
00058 self.__minorlevel=level
00059 self.__minorab=abovebelow
00060 self.__minorcolor=QColor(color)
00061 def setMajor(self,level,abovebelow=1,color="red"):
00062 self.__majorlevel=level
00063 self.__majorab=abovebelow
00064 self.__majorcolor=QColor(color)
00065 def setScale(self,scale):
00066 self.__fullscale=scale
00067 self.update()
00068 def setOrientation(self,st):
00069 if st=="vertical":
00070 self.__orientation=0
00071 else:
00072 self.__orientation=1
00073 def getOrientation():
00074 return self.__orientation
00075
00076 def displayValue(self,a0):
00077 self.__rval=a0
00078 if a0>=0 and a0 <=self.__fullscale:
00079 self.__val=a0
00080 elif a0<0:
00081 self.__val=0
00082 else:
00083 self.__val=self.__fullscale
00084 self.update()
00085
00086
00087 def paintEvent(self,pe):
00088 try:
00089 r= pe.rect()
00090 painter=QPainter()
00091 painter.begin( self )
00092 painter.setBrush(self.paletteBackgroundColor())
00093 pen=QPen()
00094 pen.setColor(QColor("black"))
00095 pen.setWidth(1)
00096 painter.setPen(pen)
00097 ar=QPointArray(4)
00098 ar.setPoint(0, 0,0 )
00099 ar.setPoint(1, self.size().width()-1,0)
00100 ar.setPoint(2,self.size().width()-1, self.size().height()-1)
00101 ar.setPoint(3,0,self.size().height()-1)
00102 painter.drawPolygon(ar)
00103 brush=QBrush(self.__color )
00104 if self.__minorab==1 and self.__rval>self.__minorlevel: brush=QBrush(self.__minorcolor)
00105 if self.__minorab==-1 and self.__rval<self.__minorlevel: brush=QBrush(self.__minorcolor)
00106 if self.__majorab==1 and self.__rval>self.__majorlevel: brush=QBrush(self.__majorcolor)
00107 if self.__majorab==-1 and self.__rval<self.__majorlevel: brush=QBrush(self.__majorcolor)
00108
00109 painter.setBrush( brush )
00110 painter.setPen(self.paletteBackgroundColor())
00111 hval=float(self.__val)/self.__fullscale*(self.size().width()-2)
00112 if hval<0: hval=0
00113 vval=float(self.__val)/self.__fullscale*(self.size().height()-2)
00114 if vval<0:vval=0
00115 if self.__orientation==0:
00116 painter.drawRect( 1,self.size().height()-vval-1,
00117 self.size().width()-2,vval )
00118 else:
00119 painter.drawRect(1,1,hval,self.size().height()-2)
00120 except :
00121 print "Unexpected error:", sys.exc_info()[1]
00122
00123
00124
00125 if __name__ == "__main__":
00126 a = QApplication(sys.argv)
00127 QObject.connect(a,SIGNAL("lastWindowClosed()"),a,SLOT("quit()"))
00128 w = bar()
00129 a.setMainWidget(w)
00130 w.show()
00131 a.exec_loop()
