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waveform: add _BaseWaveform
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parent
28dfe1f9c6
commit
c087a47e45
@ -105,6 +105,87 @@ class ReceiverProxyClient(_BaseProxyClient):
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await self.receiver.close()
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class _BackgroundItem(pg.GraphicsWidgetAnchor, pg.GraphicsWidget):
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def __init__(self, parent, rect):
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pg.GraphicsWidget.__init__(self, parent)
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pg.GraphicsWidgetAnchor.__init__(self)
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self.item = QtWidgets.QGraphicsRectItem(rect, self)
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brush = QtGui.QBrush(QtGui.QColor(10, 10, 10, 140))
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self.item.setBrush(brush)
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class _BaseWaveform(pg.PlotWidget):
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def __init__(self, name, width, parent=None, pen="r", stepMode="right", connect="finite"):
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pg.PlotWidget.__init__(self,
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parent=parent,
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x=None,
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y=None,
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pen=pen,
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stepMode=stepMode,
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connect=connect)
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self.setMinimumHeight(WAVEFORM_MIN_HEIGHT)
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self.setMaximumHeight(WAVEFORM_MAX_HEIGHT)
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self.setMenuEnabled(False)
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self.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
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self.name = name
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self.width = width
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self.plot_item = self.getPlotItem()
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self.plot_item.hideButtons()
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self.plot_item.hideAxis("top")
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self.plot_item.getAxis("bottom").setStyle(showValues=False, tickLength=0)
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self.plot_item.getAxis("left").setStyle(showValues=False, tickLength=0)
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self.plot_item.setRange(yRange=(0, 1), padding=0.1)
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self.plot_item.showGrid(x=True, y=True)
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self.plot_data_item = self.plot_item.listDataItems()[0]
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self.plot_data_item.setClipToView(True)
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self.view_box = self.plot_item.getViewBox()
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self.view_box.setMouseEnabled(x=True, y=False)
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self.view_box.disableAutoRange(axis=pg.ViewBox.YAxis)
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self.view_box.setLimits(xMin=0, minXRange=20)
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self.title_label = pg.LabelItem(self.name, parent=self.plot_item)
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self.title_label.anchor(itemPos=(0, 0), parentPos=(0, 0), offset=(0, 0))
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self.title_label.setAttr('justify', 'left')
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self.title_label.setZValue(10)
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rect = self.title_label.boundingRect()
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rect.setHeight(rect.height() * 2)
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self.label_bg = _BackgroundItem(parent=self.plot_item, rect=rect)
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self.label_bg.anchor(itemPos=(0, 0), parentPos=(0, 0), offset=(0, 0))
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def setStoppedX(self, stopped_x):
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self.stopped_x = stopped_x
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self.view_box.setLimits(xMax=stopped_x)
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def setTimescale(self, timescale):
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self.timescale = timescale
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def onDataChange(self, data):
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raise NotImplementedError
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def mouseMoveEvent(self, e):
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if e.buttons() == QtCore.Qt.LeftButton \
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and e.modifiers() == QtCore.Qt.ShiftModifier:
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drag = QtGui.QDrag(self)
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mime = QtCore.QMimeData()
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drag.setMimeData(mime)
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pixmapi = QtWidgets.QApplication.style().standardIcon(
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QtWidgets.QStyle.SP_FileIcon)
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drag.setPixmap(pixmapi.pixmap(32))
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drag.exec_(QtCore.Qt.MoveAction)
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else:
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super().mouseMoveEvent(e)
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def wheelEvent(self, e):
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if e.modifiers() & QtCore.Qt.ControlModifier:
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super().wheelEvent(e)
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class _WaveformView(QtWidgets.QWidget):
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def __init__(self, parent):
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QtWidgets.QWidget.__init__(self, parent=parent)
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