waveform: add _BaseWaveform

This commit is contained in:
Simon Renblad 2024-01-24 16:18:31 +08:00 committed by Sébastien Bourdeauducq
parent 28dfe1f9c6
commit c087a47e45
1 changed files with 81 additions and 0 deletions

View File

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