forked from M-Labs/artiq
waveform: add cursor
This commit is contained in:
parent
40cea30285
commit
7f43c5c31a
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@ -120,6 +120,8 @@ class _BackgroundItem(pg.GraphicsWidgetAnchor, pg.GraphicsWidget):
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class _BaseWaveform(pg.PlotWidget):
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cursorMove = QtCore.pyqtSignal(float)
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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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@ -136,6 +138,8 @@ class _BaseWaveform(pg.PlotWidget):
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self.name = name
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self.width = width
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self.x_data = []
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self.y_data = []
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self.plot_item = self.getPlotItem()
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self.plot_item.hideButtons()
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@ -160,9 +164,19 @@ class _BaseWaveform(pg.PlotWidget):
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rect = self.title_label.boundingRect()
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rect.setHeight(rect.height() * 2)
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rect.setWidth(225)
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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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self.cursor = pg.InfiniteLine()
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self.cursor_y = None
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self.addItem(self.cursor)
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self.cursor_label = pg.LabelItem('', parent=self.plot_item)
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self.cursor_label.anchor(itemPos=(0, 0), parentPos=(0, 0), offset=(0, 20))
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self.cursor_label.setAttr('justify', 'left')
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self.cursor_label.setZValue(10)
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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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@ -171,7 +185,20 @@ class _BaseWaveform(pg.PlotWidget):
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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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try:
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self.x_data, self.y_data = zip(*data)
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except:
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logger.error("Error getting data for waveform: {}".format(self.name), exc_info=True)
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def onCursorMove(self, x):
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self.cursor.setValue(x)
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if len(self.x_data) < 1:
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return
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ind = bisect.bisect_left(self.x_data, x) - 1
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dr = self.plot_data_item.dataRect()
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self.cursor_y = None
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if dr is not None and 0 <= ind < len(self.y_data):
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self.cursor_y = self.y_data[ind]
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def mouseMoveEvent(self, e):
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if e.buttons() == QtCore.Qt.LeftButton \
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@ -190,6 +217,10 @@ class _BaseWaveform(pg.PlotWidget):
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if e.modifiers() & QtCore.Qt.ControlModifier:
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super().wheelEvent(e)
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def mouseDoubleClickEvent(self, e):
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pos = self.view_box.mapSceneToView(e.pos())
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self.cursorMove.emit(pos.x())
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class BitWaveform(_BaseWaveform):
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def __init__(self, name, width, parent=None):
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@ -197,6 +228,7 @@ class BitWaveform(_BaseWaveform):
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self._arrows = []
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def onDataChange(self, data):
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_BaseWaveform.onDataChange(self, data)
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try:
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for arw in self._arrows:
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self.removeItem(arw)
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@ -228,29 +260,36 @@ class BitWaveform(_BaseWaveform):
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self.removeItem(arw)
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self.plot_data_item.setData(x=[], y=[])
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def onCursorMove(self, x):
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_BaseWaveform.onCursorMove(self, x)
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self.cursor_label.setText(self.cursor_y)
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class AnalogWaveform(_BaseWaveform):
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def __init__(self, name, width, parent=None):
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_BaseWaveform.__init__(self, name, width, parent)
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def onDataChange(self, data):
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_BaseWaveform.onDataChange(self, data)
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try:
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x_data, y_data = zip(*data)
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self.plot_data_item.setData(x=x_data, y=y_data)
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max_y = max(y_data)
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min_y = min(y_data)
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self.plot_data_item.setData(x=self.x_data, y=self.y_data)
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max_y = max(self.y_data)
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min_y = min(self.y_data)
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self.plot_item.setRange(yRange=(min_y, max_y), padding=0.1)
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except:
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logger.error(
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'Error when displaying waveform: {}'.format(self.name), exc_info=True)
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self.plot_data_item.setData(x=[], y=[])
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def onCursorMove(self, x):
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_BaseWaveform.onCursorMove(self, x)
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self.cursor_label.setText(self.cursor_y)
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class BitVectorWaveform(_BaseWaveform):
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def __init__(self, name, width, parent=None):
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_BaseWaveform.__init__(self, name, width, parent)
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self._labels = []
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self.x_data = []
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self._format_string = "{:0=" + str(math.ceil(width / 4)) + "X}"
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self.view_box.sigTransformChanged.connect(self._update_labels)
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@ -270,11 +309,11 @@ class BitVectorWaveform(_BaseWaveform):
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self.addItem(lbl)
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def onDataChange(self, data):
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_BaseWaveform.onDataChange(self, data)
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try:
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for lbl in self._labels:
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self.plot_item.removeItem(lbl)
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self._labels = []
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self.x_data, _ = zip(*data)
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l = len(data)
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display_x = np.empty(l * 2)
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display_y = np.empty(l * 2)
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@ -297,6 +336,13 @@ class BitVectorWaveform(_BaseWaveform):
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self.plot_item.removeItem(lbl)
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self.plot_data_item.setData(x=[], y=[])
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def onCursorMove(self, x):
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_BaseWaveform.onCursorMove(self, x)
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t = None
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if self.cursor_y is not None:
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t = self._format_string.format(int(self.cursor_y, 2))
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self.cursor_label.setText(t)
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class LogWaveform(_BaseWaveform):
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def __init__(self, name, width, parent=None):
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@ -306,13 +352,13 @@ class LogWaveform(_BaseWaveform):
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self._labels = []
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def onDataChange(self, data):
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_BaseWaveform.onDataChange(self, data)
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try:
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for lbl in self._labels:
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self.plot_item.removeItem(lbl)
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self._labels = []
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x_data, _ = zip(*data)
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self.plot_data_item.setData(
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x=x_data, y=np.ones(len(x_data)))
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x=self.x_data, y=np.ones(len(self.x_data)))
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old_msg = ""
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old_x = 0
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for x, msg in data:
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@ -335,13 +381,19 @@ class LogWaveform(_BaseWaveform):
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self.plot_item.removeItem(lbl)
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self.plot_data_item.setData(x=[], y=[])
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def onCursorMove(self, x):
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_BaseWaveform.onCursorMove(self, x)
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class _WaveformView(QtWidgets.QWidget):
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cursorMove = QtCore.pyqtSignal(float)
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def __init__(self, parent):
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QtWidgets.QWidget.__init__(self, parent=parent)
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self._stopped_x = None
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self._timescale = 1
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self._cursor_x = 0
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layout = QtWidgets.QVBoxLayout()
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layout.setContentsMargins(0, 0, 0, 0)
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@ -376,6 +428,8 @@ class _WaveformView(QtWidgets.QWidget):
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self._splitter.setHandleWidth(1)
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scroll_area.setWidget(self._splitter)
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self.cursorMove.connect(self.onCursorMove)
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def setModel(self, model):
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self._model = model
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self._model.dataChanged.connect(self.onDataChange)
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@ -421,6 +475,11 @@ class _WaveformView(QtWidgets.QWidget):
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w = self._splitter.widget(src_start)
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self._splitter.insertWidget(dest_row, w)
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def onCursorMove(self, x):
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self._cursor_x = x
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for i in range(self._model.rowCount()):
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self._splitter.widget(i).onCursorMove(x)
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def _create_waveform(self, row):
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name = self._model.data(self._model.index(row, 0))
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ty = self._model.data(self._model.index(row, 1))
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@ -435,6 +494,8 @@ class _WaveformView(QtWidgets.QWidget):
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w.setXLink(self._ref_vb)
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w.setStoppedX(self._stopped_x)
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w.setTimescale(self._timescale)
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w.cursorMove.connect(self.cursorMove)
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w.onCursorMove(self._cursor_x)
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action = QtWidgets.QAction("Delete waveform", w)
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action.triggered.connect(lambda: self._delete_waveform(w))
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w.addAction(action)
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@ -516,6 +577,45 @@ class _WaveformModel(QtCore.QAbstractTableModel):
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self.update_data(waveform_data, 0, self.rowCount())
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class _CursorTimeControl(QtWidgets.QLineEdit):
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submit = QtCore.pyqtSignal(float)
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def __init__(self, parent):
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QtWidgets.QLineEdit.__init__(self, parent=parent)
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self._text = ""
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self._value = 0
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self._timescale = 1
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self.setDisplayValue(0)
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self.textChanged.connect(self._onTextChange)
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self.returnPressed.connect(self._onReturnPress)
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def setTimescale(self, timescale):
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self._timescale = timescale
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def _onTextChange(self, text):
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self._text = text
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def setDisplayValue(self, value):
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self._value = value
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self._text = pg.siFormat(value * 1e-12 * self._timescale,
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suffix="s",
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allowUnicode=False,
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precision=15)
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self.setText(self._text)
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def _setValueFromText(self, text):
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try:
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self._value = pg.siEval(text) * (1e12 / self._timescale)
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except:
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logger.error("Error when parsing cursor time input", exc_info=True)
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def _onReturnPress(self):
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self._setValueFromText(self._text)
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self.setDisplayValue(self._value)
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self.submit.emit(self._value)
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self.clearFocus()
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class Model(DictSyncTreeSepModel):
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def __init__(self, init):
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DictSyncTreeSepModel.__init__(self, "/", ["Channels"], init)
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@ -641,6 +741,11 @@ class WaveformDock(QtWidgets.QDockWidget):
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self._waveform_view.setModel(self._waveform_model)
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grid.addWidget(self._waveform_view, 1, 0, colspan=12)
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self._cursor_control = _CursorTimeControl(self)
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self._waveform_view.cursorMove.connect(self._cursor_control.setDisplayValue)
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self._cursor_control.submit.connect(self._waveform_view.onCursorMove)
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grid.addWidget(self._cursor_control, 0, 3, colspan=6)
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def _add_async_action(self, label, coro):
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action = QtWidgets.QAction(label, self)
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action.triggered.connect(
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@ -674,6 +779,7 @@ class WaveformDock(QtWidgets.QDockWidget):
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self._waveform_model.update_all(self._waveform_data['data'])
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self._waveform_view.setStoppedX(self._waveform_data['stopped_x'])
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self._waveform_view.setTimescale(self._waveform_data['timescale'])
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self._cursor_control.setTimescale(self._waveform_data['timescale'])
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async def load_trace(self):
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try:
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