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72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
from PyQt4.QtGui import QWidget
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from PyQt4.QtGui import QGraphicsScene
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from PyQt4.QtGui import QPainterPath
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from PyQt4.QtGui import QPen
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from PyQt4.QtGui import QColor
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from PyQt4.QtCore import pyqtSlot
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from PyQt4.QtCore import SIGNAL
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from PyQt4.QtCore import QObject
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from PyQt4.QtCore import QTimer
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from ModuleAUi import Ui_ModuleA
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from device import Device
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class ModuleAWidget(QWidget):
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def __init__(self):
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QWidget.__init__(self)
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self.ui = Ui_ModuleA()
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self.ui.setupUi(self)
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self.timer = QTimer()
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QObject.connect(self.timer, SIGNAL("timeout()"), self.read_inputs)
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self.data = 200*[0.0]
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def read_inputs(self):
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r = self.dev.read()
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u = r[1]/1023.0 * 3.3
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self.ui.labelU.setText('%0.3f V' % u)
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self.ui.progressU.setValue(1000*u)
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self.data.pop(0)
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self.data.append(u)
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self.scene = QGraphicsScene()
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self.scene.addLine(-10, 400-0, 610, 400-0)
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self.scene.addLine(0, 400+10, 0, 400-410)
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self.scene.addLine(-10, 400- 50, 10, 400- 50)
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self.scene.addLine(-10, 400-100, 10, 400-100)
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self.scene.addLine(-10, 400-150, 10, 400-150)
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self.scene.addLine(-10, 400-200, 10, 400-200)
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self.scene.addLine(-10, 400-250, 10, 400-250)
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self.scene.addLine(-10, 400-300, 10, 400-300)
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self.scene.addLine(-10, 400-350, 10, 400-350)
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self.scene.addLine(-10, 400-400, 10, 400-400)
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self.scene.addSimpleText('4.0').moveBy(-40, 0-10)
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self.scene.addSimpleText('3.5').moveBy(-40, 50-10)
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self.scene.addSimpleText('3.0').moveBy(-40, 100-10)
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self.scene.addSimpleText('2.5').moveBy(-40, 150-10)
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self.scene.addSimpleText('2.0').moveBy(-40, 200-10)
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self.scene.addSimpleText('1.5').moveBy(-40, 250-10)
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self.scene.addSimpleText('1.0').moveBy(-40, 300-10)
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self.scene.addSimpleText('0.5').moveBy(-40, 350-10)
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self.scene.addSimpleText('0.0').moveBy(-40, 400-10)
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self.scene.addSimpleText('[U]').moveBy(-39, 430-10)
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path = QPainterPath()
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path.moveTo(0,400-self.data[0]*100)
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for i in xrange(1,200):
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path.lineTo(3*(i+1), 400-self.data[i]*100)
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self.scene.addPath(path, QPen(QColor(0,0,255), 3))
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self.ui.graphU.setScene(self.scene)
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class ModuleA():
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def __init__(self):
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self.title = 'Sources of Electricity'
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self.widget = ModuleAWidget()
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def start(self):
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self.widget.dev = Device()
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self.widget.timer.start(40)
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def stop(self):
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self.widget.timer.stop()
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