a8260b641c
catched earlier by an item implementing this. Test it at the empty space where the auto button appears in the plot window or on the scaleItems. Which element does this panning by default? parents: scene or view?
1123 lines
42 KiB
Python
1123 lines
42 KiB
Python
# -*- coding: utf-8 -*-
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"""
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PlotItem.py - Graphics item implementing a scalable ViewBox with plotting powers.
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Copyright 2010 Luke Campagnola
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Distributed under MIT/X11 license. See license.txt for more infomation.
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This class is one of the workhorses of pyqtgraph. It implements a graphics item with
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plots, labels, and scales which can be viewed inside a QGraphicsScene. If you want
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a widget that can be added to your GUI, see PlotWidget instead.
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This class is very heavily featured:
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- Automatically creates and manages PlotCurveItems
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- Fast display and update of plots
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- Manages zoom/pan ViewBox, scale, and label elements
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- Automatic scaling when data changes
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- Control panel with a huge feature set including averaging, decimation,
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display, power spectrum, svg/png export, plot linking, and more.
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"""
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from graphicsItems import *
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from plotConfigTemplate import *
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from PyQt4 import QtGui, QtCore, QtSvg
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#from ObjectWorkaround import *
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#tryWorkaround(QtCore, QtGui)
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import weakref
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import numpy as np
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try:
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from WidgetGroup import *
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HAVE_WIDGETGROUP = True
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except:
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HAVE_WIDGETGROUP = False
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try:
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from metaarray import *
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HAVE_METAARRAY = True
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except:
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HAVE_METAARRAY = False
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class PlotItem(QtGui.QGraphicsWidget):
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"""Plot graphics item that can be added to any graphics scene. Implements axis titles, scales, interactive viewbox."""
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lastFileDir = None
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managers = {}
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def __init__(self, parent=None, name=None):
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QtGui.QGraphicsWidget.__init__(self, parent)
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## Set up control buttons
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self.ctrlBtn = QtGui.QToolButton()
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self.ctrlBtn.setText('?')
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self.autoBtn = QtGui.QToolButton()
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self.autoBtn.setText('A')
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self.autoBtn.hide()
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for b in [self.ctrlBtn, self.autoBtn]:
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proxy = QtGui.QGraphicsProxyWidget(self)
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proxy.setWidget(b)
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proxy.setAcceptHoverEvents(False)
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b.setStyleSheet("background-color: #000000; color: #888; font-size: 6pt")
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QtCore.QObject.connect(self.ctrlBtn, QtCore.SIGNAL('clicked()'), self.ctrlBtnClicked)
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QtCore.QObject.connect(self.autoBtn, QtCore.SIGNAL('clicked()'), self.enableAutoScale)
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self.layout = QtGui.QGraphicsGridLayout()
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self.layout.setContentsMargins(1,1,1,1)
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self.setLayout(self.layout)
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self.layout.setHorizontalSpacing(0)
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self.layout.setVerticalSpacing(0)
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self.vb = ViewBox()
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QtCore.QObject.connect(self.vb, QtCore.SIGNAL('xRangeChanged'), self.xRangeChanged)
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QtCore.QObject.connect(self.vb, QtCore.SIGNAL('yRangeChanged'), self.yRangeChanged)
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QtCore.QObject.connect(self.vb, QtCore.SIGNAL('rangeChangedManually'), self.enableManualScale)
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QtCore.QObject.connect(self.vb, QtCore.SIGNAL('viewChanged'), self.viewChanged)
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self.layout.addItem(self.vb, 2, 1)
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self.alpha = 1.0
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self.autoAlpha = True
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self.spectrumMode = False
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self.autoScale = [True, True]
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## Create and place scale items
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self.scales = {
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'top': {'item': ScaleItem(orientation='top', linkView=self.vb), 'pos': (1, 1)},
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'bottom': {'item': ScaleItem(orientation='bottom', linkView=self.vb), 'pos': (3, 1)},
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'left': {'item': ScaleItem(orientation='left', linkView=self.vb), 'pos': (2, 0)},
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'right': {'item': ScaleItem(orientation='right', linkView=self.vb), 'pos': (2, 2)}
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}
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for k in self.scales:
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self.layout.addItem(self.scales[k]['item'], *self.scales[k]['pos'])
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## Create and place label items
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#self.labels = {
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#'title': {'item': LabelItem('title', size='11pt'), 'pos': (0, 2), 'text': ''},
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#'top': {'item': LabelItem('top'), 'pos': (1, 2), 'text': '', 'units': '', 'unitPrefix': ''},
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#'bottom': {'item': LabelItem('bottom'), 'pos': (5, 2), 'text': '', 'units': '', 'unitPrefix': ''},
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#'left': {'item': LabelItem('left'), 'pos': (3, 0), 'text': '', 'units': '', 'unitPrefix': ''},
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#'right': {'item': LabelItem('right'), 'pos': (3, 4), 'text': '', 'units': '', 'unitPrefix': ''}
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#}
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#self.labels['left']['item'].setAngle(-90)
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#self.labels['right']['item'].setAngle(-90)
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#for k in self.labels:
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#self.layout.addItem(self.labels[k]['item'], *self.labels[k]['pos'])
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self.titleLabel = LabelItem('', size='11pt')
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self.layout.addItem(self.titleLabel, 0, 1)
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self.setTitle(None) ## hide
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for i in range(4):
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self.layout.setRowPreferredHeight(i, 0)
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self.layout.setRowMinimumHeight(i, 0)
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self.layout.setRowSpacing(i, 0)
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self.layout.setRowStretchFactor(i, 1)
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for i in range(3):
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self.layout.setColumnPreferredWidth(i, 0)
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self.layout.setColumnMinimumWidth(i, 0)
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self.layout.setColumnSpacing(i, 0)
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self.layout.setColumnStretchFactor(i, 1)
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self.layout.setRowStretchFactor(2, 100)
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self.layout.setColumnStretchFactor(1, 100)
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## Wrap a few methods from viewBox
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for m in ['setXRange', 'setYRange', 'setRange', 'autoRange', 'viewRect', 'setMouseEnabled']:
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setattr(self, m, getattr(self.vb, m))
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self.items = []
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self.curves = []
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self.dataItems = []
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self.paramList = {}
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self.avgCurves = {}
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### Set up context menu
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w = QtGui.QWidget()
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self.ctrl = c = Ui_Form()
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c.setupUi(w)
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dv = QtGui.QDoubleValidator(self)
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self.ctrlMenu = QtGui.QMenu()
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ac = QtGui.QWidgetAction(self)
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ac.setDefaultWidget(w)
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self.ctrlMenu.addAction(ac)
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if HAVE_WIDGETGROUP:
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self.stateGroup = WidgetGroup(self.ctrlMenu)
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self.fileDialog = None
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self.xLinkPlot = None
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self.yLinkPlot = None
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self.linksBlocked = False
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#self.ctrlBtn.setFixedWidth(60)
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self.setAcceptHoverEvents(True)
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## Connect control widgets
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QtCore.QObject.connect(c.xMinText, QtCore.SIGNAL('editingFinished()'), self.setManualXScale)
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QtCore.QObject.connect(c.xMaxText, QtCore.SIGNAL('editingFinished()'), self.setManualXScale)
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QtCore.QObject.connect(c.yMinText, QtCore.SIGNAL('editingFinished()'), self.setManualYScale)
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QtCore.QObject.connect(c.yMaxText, QtCore.SIGNAL('editingFinished()'), self.setManualYScale)
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QtCore.QObject.connect(c.xManualRadio, QtCore.SIGNAL('clicked()'), self.updateXScale)
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QtCore.QObject.connect(c.yManualRadio, QtCore.SIGNAL('clicked()'), self.updateYScale)
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QtCore.QObject.connect(c.xAutoRadio, QtCore.SIGNAL('clicked()'), self.updateXScale)
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QtCore.QObject.connect(c.yAutoRadio, QtCore.SIGNAL('clicked()'), self.updateYScale)
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QtCore.QObject.connect(c.xAutoPercentSpin, QtCore.SIGNAL('valueChanged(int)'), self.replot)
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QtCore.QObject.connect(c.yAutoPercentSpin, QtCore.SIGNAL('valueChanged(int)'), self.replot)
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#QtCore.QObject.connect(c.xLogCheck, QtCore.SIGNAL('toggled(bool)'), self.setXLog)
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#QtCore.QObject.connect(c.yLogCheck, QtCore.SIGNAL('toggled(bool)'), self.setYLog)
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QtCore.QObject.connect(c.alphaGroup, QtCore.SIGNAL('toggled(bool)'), self.updateAlpha)
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QtCore.QObject.connect(c.alphaSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateAlpha)
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QtCore.QObject.connect(c.autoAlphaCheck, QtCore.SIGNAL('toggled(bool)'), self.updateAlpha)
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QtCore.QObject.connect(c.gridGroup, QtCore.SIGNAL('toggled(bool)'), self.updateGrid)
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QtCore.QObject.connect(c.gridAlphaSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateGrid)
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QtCore.QObject.connect(c.powerSpectrumGroup, QtCore.SIGNAL('toggled(bool)'), self.updateSpectrumMode)
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QtCore.QObject.connect(c.saveSvgBtn, QtCore.SIGNAL('clicked()'), self.saveSvgClicked)
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QtCore.QObject.connect(c.saveImgBtn, QtCore.SIGNAL('clicked()'), self.saveImgClicked)
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QtCore.QObject.connect(c.saveCsvBtn, QtCore.SIGNAL('clicked()'), self.saveCsvClicked)
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#QtCore.QObject.connect(c.gridGroup, QtCore.SIGNAL('toggled(bool)'), self.updateGrid)
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#QtCore.QObject.connect(c.gridAlphaSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateGrid)
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QtCore.QObject.connect(self.ctrl.xLinkCombo, QtCore.SIGNAL('currentIndexChanged(int)'), self.xLinkComboChanged)
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QtCore.QObject.connect(self.ctrl.yLinkCombo, QtCore.SIGNAL('currentIndexChanged(int)'), self.yLinkComboChanged)
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QtCore.QObject.connect(c.downsampleSpin, QtCore.SIGNAL('valueChanged(int)'), self.updateDownsampling)
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QtCore.QObject.connect(self.ctrl.avgParamList, QtCore.SIGNAL('itemClicked(QListWidgetItem*)'), self.avgParamListClicked)
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QtCore.QObject.connect(self.ctrl.averageGroup, QtCore.SIGNAL('toggled(bool)'), self.avgToggled)
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#QtCore.QObject.connect(self.ctrl.pointsGroup, QtCore.SIGNAL('toggled(bool)'), self.updatePointMode)
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#QtCore.QObject.connect(self.ctrl.autoPointsCheck, QtCore.SIGNAL('toggled(bool)'), self.updatePointMode)
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QtCore.QObject.connect(self.ctrl.maxTracesCheck, QtCore.SIGNAL('toggled(bool)'), self.updateDecimation)
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QtCore.QObject.connect(self.ctrl.maxTracesSpin, QtCore.SIGNAL('valueChanged(int)'), self.updateDecimation)
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QtCore.QObject.connect(c.xMouseCheck, QtCore.SIGNAL('toggled(bool)'), self.mouseCheckChanged)
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QtCore.QObject.connect(c.yMouseCheck, QtCore.SIGNAL('toggled(bool)'), self.mouseCheckChanged)
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self.xLinkPlot = None
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self.yLinkPlot = None
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self.linksBlocked = False
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self.manager = None
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#self.showLabel('right', False)
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#self.showLabel('top', False)
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#self.showLabel('title', False)
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#self.showLabel('left', False)
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#self.showLabel('bottom', False)
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self.showScale('right', False)
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self.showScale('top', False)
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self.showScale('left', True)
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self.showScale('bottom', True)
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if name is not None:
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self.registerPlot(name)
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def __del__(self):
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if self.manager is not None:
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self.manager.removeWidget(self.name)
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def registerPlot(self, name):
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self.name = name
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win = str(self.window())
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#print "register", name, win
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if win not in PlotItem.managers:
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PlotItem.managers[win] = PlotWidgetManager()
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self.manager = PlotItem.managers[win]
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self.manager.addWidget(self, name)
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QtCore.QObject.connect(self.manager, QtCore.SIGNAL('widgetListChanged'), self.updatePlotList)
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self.updatePlotList()
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def updatePlotList(self):
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"""Update the list of all plotWidgets in the "link" combos"""
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#print "update plot list", self
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try:
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for sc in [self.ctrl.xLinkCombo, self.ctrl.yLinkCombo]:
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current = str(sc.currentText())
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sc.clear()
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sc.addItem("")
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if self.manager is not None:
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for w in self.manager.listWidgets():
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#print w
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if w == self.name:
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continue
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sc.addItem(w)
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except:
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import gc
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refs= gc.get_referrers(self)
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print " error during update. Referrers are:", refs
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raise
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def updateGrid(self, *args):
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g = self.ctrl.gridGroup.isChecked()
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if g:
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g = self.ctrl.gridAlphaSlider.value()
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for k in self.scales:
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self.scales[k]['item'].setGrid(g)
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def viewGeometry(self):
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"""return the screen geometry of the viewbox"""
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v = self.scene().views()[0]
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b = self.vb.mapRectToScene(self.vb.boundingRect())
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wr = v.mapFromScene(b).boundingRect()
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pos = v.pos()
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wr.adjust(v.x(), v.y(), v.x(), v.y())
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return wr
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def viewChanged(self, *args):
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self.emit(QtCore.SIGNAL('viewChanged'), *args)
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def blockLink(self, b):
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self.linksBlocked = b
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def xLinkComboChanged(self):
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self.setXLink(str(self.ctrl.xLinkCombo.currentText()))
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def yLinkComboChanged(self):
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self.setYLink(str(self.ctrl.yLinkCombo.currentText()))
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def setXLink(self, plot=None):
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"""Link this plot's X axis to another plot (pass either the PlotItem/PlotWidget or the registered name of the plot)"""
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if isinstance(plot, basestring):
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if self.manager is None:
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return
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if self.xLinkPlot is not None:
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self.manager.unlinkX(self, self.xLinkPlot)
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plot = self.manager.getWidget(plot)
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if not isinstance(plot, PlotItem) and hasattr(plot, 'getPlotItem'):
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plot = plot.getPlotItem()
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self.xLinkPlot = plot
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if plot is not None:
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self.setManualXScale()
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self.manager.linkX(self, plot)
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def setYLink(self, plot=None):
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"""Link this plot's Y axis to another plot (pass either the PlotItem/PlotWidget or the registered name of the plot)"""
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if isinstance(plot, basestring):
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if self.manager is None:
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return
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if self.yLinkPlot is not None:
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self.manager.unlinkY(self, self.yLinkPlot)
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plot = self.manager.getWidget(plot)
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if not isinstance(plot, PlotItem) and hasattr(plot, 'getPlotItem'):
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plot = plot.getPlotItem()
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self.yLinkPlot = plot
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if plot is not None:
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self.setManualYScale()
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self.manager.linkY(self, plot)
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def linkXChanged(self, plot):
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#print "update from", plot
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if self.linksBlocked:
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return
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pr = plot.vb.viewRect()
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pg = plot.viewGeometry()
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if pg is None:
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#print " return early"
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return
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sg = self.viewGeometry()
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upp = float(pr.width()) / pg.width()
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x1 = pr.left() + (sg.x()-pg.x()) * upp
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x2 = x1 + sg.width() * upp
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plot.blockLink(True)
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self.setXRange(x1, x2, padding=0)
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plot.blockLink(False)
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self.replot()
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def linkYChanged(self, plot):
|
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if self.linksBlocked:
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return
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pr = plot.vb.viewRect()
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pg = plot.vb.boundingRect()
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sg = self.vb.boundingRect()
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upp = float(pr.height()) / pg.height()
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y1 = pr.bottom() + (sg.y()-pg.y()) * upp
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y2 = y1 + sg.height() * upp
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plot.blockLink(True)
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self.setYRange(y1, y2, padding=0)
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plot.blockLink(False)
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self.replot()
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|
|
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def avgToggled(self, b):
|
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if b:
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self.recomputeAverages()
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for k in self.avgCurves:
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self.avgCurves[k][1].setVisible(b)
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|
|
|
def avgParamListClicked(self, item):
|
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name = str(item.text())
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self.paramList[name] = (item.checkState() == QtCore.Qt.Checked)
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self.recomputeAverages()
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|
|
|
def recomputeAverages(self):
|
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if not self.ctrl.averageGroup.isChecked():
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return
|
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for k in self.avgCurves:
|
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self.removeItem(self.avgCurves[k][1])
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#Qwt.QwtPlotCurve.detach(self.avgCurves[k][1])
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self.avgCurves = {}
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|
for c in self.curves:
|
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self.addAvgCurve(c)
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self.replot()
|
|
|
|
def addAvgCurve(self, curve):
|
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"""Add a single curve into the pool of curves averaged together"""
|
|
|
|
## If there are plot parameters, then we need to determine which to average together.
|
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remKeys = []
|
|
addKeys = []
|
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if self.ctrl.avgParamList.count() > 0:
|
|
|
|
### First determine the key of the curve to which this new data should be averaged
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for i in range(self.ctrl.avgParamList.count()):
|
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item = self.ctrl.avgParamList.item(i)
|
|
if item.checkState() == QtCore.Qt.Checked:
|
|
remKeys.append(str(item.text()))
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else:
|
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addKeys.append(str(item.text()))
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|
|
|
if len(remKeys) < 1: ## In this case, there would be 1 average plot for each data plot; not useful.
|
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return
|
|
|
|
p = curve.meta().copy()
|
|
for k in p:
|
|
if type(k) is tuple:
|
|
p['.'.join(k)] = p[k]
|
|
del p[k]
|
|
for rk in remKeys:
|
|
if rk in p:
|
|
del p[rk]
|
|
for ak in addKeys:
|
|
if ak not in p:
|
|
p[ak] = None
|
|
key = tuple(p.items())
|
|
|
|
### Create a new curve if needed
|
|
if key not in self.avgCurves:
|
|
plot = PlotCurveItem()
|
|
plot.setPen(mkPen([0, 200, 0]))
|
|
plot.setShadowPen(mkPen([0, 0, 0, 100], 3))
|
|
plot.setAlpha(1.0, False)
|
|
plot.setZValue(100)
|
|
self.addItem(plot)
|
|
#Qwt.QwtPlotCurve.attach(plot, self)
|
|
self.avgCurves[key] = [0, plot]
|
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self.avgCurves[key][0] += 1
|
|
(n, plot) = self.avgCurves[key]
|
|
|
|
### Average data together
|
|
(x, y) = curve.getData()
|
|
if plot.yData is not None:
|
|
newData = plot.yData * (n-1) / float(n) + y * 1.0 / float(n)
|
|
plot.setData(plot.xData, newData)
|
|
else:
|
|
plot.setData(x, y)
|
|
|
|
|
|
def mouseCheckChanged(self):
|
|
state = [self.ctrl.xMouseCheck.isChecked(), self.ctrl.yMouseCheck.isChecked()]
|
|
self.vb.setMouseEnabled(*state)
|
|
|
|
def xRangeChanged(self, _, range):
|
|
if any(np.isnan(range)) or any(np.isinf(range)):
|
|
raise Exception("yRange invalid: %s. Signal came from %s" % (str(range), str(self.sender())))
|
|
self.ctrl.xMinText.setText('%0.5g' % range[0])
|
|
self.ctrl.xMaxText.setText('%0.5g' % range[1])
|
|
|
|
## automatically change unit scale
|
|
maxVal = max(abs(range[0]), abs(range[1]))
|
|
(scale, prefix) = siScale(maxVal)
|
|
#for l in ['top', 'bottom']:
|
|
#if self.getLabel(l).isVisible():
|
|
#self.setLabel(l, unitPrefix=prefix)
|
|
#self.getScale(l).setScale(scale)
|
|
#else:
|
|
#self.setLabel(l, unitPrefix='')
|
|
#self.getScale(l).setScale(1.0)
|
|
|
|
self.emit(QtCore.SIGNAL('xRangeChanged'), self, range)
|
|
|
|
def yRangeChanged(self, _, range):
|
|
if any(np.isnan(range)) or any(np.isinf(range)):
|
|
raise Exception("yRange invalid: %s. Signal came from %s" % (str(range), str(self.sender())))
|
|
self.ctrl.yMinText.setText('%0.5g' % range[0])
|
|
self.ctrl.yMaxText.setText('%0.5g' % range[1])
|
|
|
|
## automatically change unit scale
|
|
maxVal = max(abs(range[0]), abs(range[1]))
|
|
(scale, prefix) = siScale(maxVal)
|
|
#for l in ['left', 'right']:
|
|
#if self.getLabel(l).isVisible():
|
|
#self.setLabel(l, unitPrefix=prefix)
|
|
#self.getScale(l).setScale(scale)
|
|
#else:
|
|
#self.setLabel(l, unitPrefix='')
|
|
#self.getScale(l).setScale(1.0)
|
|
self.emit(QtCore.SIGNAL('yRangeChanged'), self, range)
|
|
|
|
|
|
def enableAutoScale(self):
|
|
self.ctrl.xAutoRadio.setChecked(True)
|
|
self.ctrl.yAutoRadio.setChecked(True)
|
|
self.autoBtn.hide()
|
|
self.updateXScale()
|
|
self.updateYScale()
|
|
self.replot()
|
|
|
|
def updateXScale(self):
|
|
"""Set plot to autoscale or not depending on state of radio buttons"""
|
|
if self.ctrl.xManualRadio.isChecked():
|
|
self.setManualXScale()
|
|
else:
|
|
self.setAutoXScale()
|
|
self.replot()
|
|
|
|
def updateYScale(self, b=False):
|
|
"""Set plot to autoscale or not depending on state of radio buttons"""
|
|
if self.ctrl.yManualRadio.isChecked():
|
|
self.setManualYScale()
|
|
else:
|
|
self.setAutoYScale()
|
|
self.replot()
|
|
|
|
def enableManualScale(self, v=[True, True]):
|
|
if v[0]:
|
|
self.autoScale[0] = False
|
|
self.ctrl.xManualRadio.setChecked(True)
|
|
#self.setManualXScale()
|
|
if v[1]:
|
|
self.autoScale[1] = False
|
|
self.ctrl.yManualRadio.setChecked(True)
|
|
#self.setManualYScale()
|
|
self.autoBtn.show()
|
|
#self.replot()
|
|
|
|
def setManualXScale(self):
|
|
self.autoScale[0] = False
|
|
x1 = float(self.ctrl.xMinText.text())
|
|
x2 = float(self.ctrl.xMaxText.text())
|
|
self.ctrl.xManualRadio.setChecked(True)
|
|
self.setXRange(x1, x2, padding=0)
|
|
self.autoBtn.show()
|
|
#self.replot()
|
|
|
|
def setManualYScale(self):
|
|
self.autoScale[1] = False
|
|
y1 = float(self.ctrl.yMinText.text())
|
|
y2 = float(self.ctrl.yMaxText.text())
|
|
self.ctrl.yManualRadio.setChecked(True)
|
|
self.setYRange(y1, y2, padding=0)
|
|
self.autoBtn.show()
|
|
#self.replot()
|
|
|
|
def setAutoXScale(self):
|
|
self.autoScale[0] = True
|
|
self.ctrl.xAutoRadio.setChecked(True)
|
|
#self.replot()
|
|
|
|
def setAutoYScale(self):
|
|
self.autoScale[1] = True
|
|
self.ctrl.yAutoRadio.setChecked(True)
|
|
#self.replot()
|
|
|
|
def addItem(self, item, *args):
|
|
self.items.append(item)
|
|
self.vb.addItem(item, *args)
|
|
|
|
def removeItem(self, item):
|
|
if not item in self.items:
|
|
return
|
|
self.items.remove(item)
|
|
if item in self.dataItems:
|
|
self.dataItems.remove(item)
|
|
|
|
if item.scene() is not None:
|
|
self.vb.removeItem(item)
|
|
if item in self.curves:
|
|
self.curves.remove(item)
|
|
self.updateDecimation()
|
|
self.updateParamList()
|
|
item.connect(QtCore.SIGNAL('plotChanged'), self.plotChanged)
|
|
|
|
def clear(self):
|
|
for i in self.items[:]:
|
|
self.removeItem(i)
|
|
self.avgCurves = {}
|
|
|
|
def clearPlots(self):
|
|
for i in self.curves[:]:
|
|
self.removeItem(i)
|
|
self.avgCurves = {}
|
|
|
|
|
|
def plot(self, data=None, x=None, clear=False, params=None, pen=None):
|
|
if clear:
|
|
self.clear()
|
|
if params is None:
|
|
params = {}
|
|
if HAVE_METAARRAY and isinstance(data, MetaArray):
|
|
curve = self._plotMetaArray(data, x=x)
|
|
elif isinstance(data, np.ndarray):
|
|
curve = self._plotArray(data, x=x)
|
|
elif isinstance(data, list):
|
|
if x is not None:
|
|
x = np.array(x)
|
|
curve = self._plotArray(np.array(data), x=x)
|
|
elif data is None:
|
|
curve = PlotCurveItem()
|
|
else:
|
|
raise Exception('Not sure how to plot object of type %s' % type(data))
|
|
|
|
#print data, curve
|
|
self.addCurve(curve, params)
|
|
if pen is not None:
|
|
curve.setPen(pen)
|
|
|
|
return curve
|
|
|
|
def addDataItem(self, item):
|
|
self.addItem(item)
|
|
self.dataItems.append(item)
|
|
|
|
def addCurve(self, c, params=None):
|
|
if params is None:
|
|
params = {}
|
|
c.setMeta(params)
|
|
self.curves.append(c)
|
|
#Qwt.QwtPlotCurve.attach(c, self)
|
|
self.addItem(c)
|
|
|
|
## configure curve for this plot
|
|
(alpha, auto) = self.alphaState()
|
|
c.setAlpha(alpha, auto)
|
|
c.setSpectrumMode(self.ctrl.powerSpectrumGroup.isChecked())
|
|
c.setDownsampling(self.downsampleMode())
|
|
c.setPointMode(self.pointMode())
|
|
|
|
## Hide older plots if needed
|
|
self.updateDecimation()
|
|
|
|
## Add to average if needed
|
|
self.updateParamList()
|
|
if self.ctrl.averageGroup.isChecked():
|
|
self.addAvgCurve(c)
|
|
|
|
c.connect(QtCore.SIGNAL('plotChanged'), self.plotChanged)
|
|
self.plotChanged()
|
|
|
|
def plotChanged(self, curve=None):
|
|
## Recompute auto range if needed
|
|
for ax in [0, 1]:
|
|
if self.autoScale[ax]:
|
|
percentScale = [self.ctrl.xAutoPercentSpin.value(), self.ctrl.yAutoPercentSpin.value()][ax] * 0.01
|
|
mn = None
|
|
mx = None
|
|
for c in self.curves + [c[1] for c in self.avgCurves.values()] + self.dataItems:
|
|
if not c.isVisible():
|
|
continue
|
|
cmn, cmx = c.getRange(ax, percentScale)
|
|
if mn is None or cmn < mn:
|
|
mn = cmn
|
|
if mx is None or cmx > mx:
|
|
mx = cmx
|
|
if mn is None or mx is None or any(np.isnan([mn, mx])) or any(np.isinf([mn, mx])):
|
|
continue
|
|
if mn == mx:
|
|
mn -= 1
|
|
mx += 1
|
|
self.setRange(ax, mn, mx)
|
|
|
|
def replot(self):
|
|
self.plotChanged()
|
|
self.update()
|
|
|
|
def updateParamList(self):
|
|
self.ctrl.avgParamList.clear()
|
|
## Check to see that each parameter for each curve is present in the list
|
|
#print "\nUpdate param list", self
|
|
#print "paramList:", self.paramList
|
|
for c in self.curves:
|
|
#print " curve:", c
|
|
for p in c.meta().keys():
|
|
#print " param:", p
|
|
if type(p) is tuple:
|
|
p = '.'.join(p)
|
|
|
|
## If the parameter is not in the list, add it.
|
|
matches = self.ctrl.avgParamList.findItems(p, QtCore.Qt.MatchExactly)
|
|
#print " matches:", matches
|
|
if len(matches) == 0:
|
|
i = QtGui.QListWidgetItem(p)
|
|
if p in self.paramList and self.paramList[p] is True:
|
|
#print " set checked"
|
|
i.setCheckState(QtCore.Qt.Checked)
|
|
else:
|
|
#print " set unchecked"
|
|
i.setCheckState(QtCore.Qt.Unchecked)
|
|
self.ctrl.avgParamList.addItem(i)
|
|
else:
|
|
i = matches[0]
|
|
|
|
self.paramList[p] = (i.checkState() == QtCore.Qt.Checked)
|
|
#print "paramList:", self.paramList
|
|
|
|
def writeSvg(self, fileName=None):
|
|
if fileName is None:
|
|
fileName = QtGui.QFileDialog.getSaveFileName()
|
|
fileName = str(fileName)
|
|
PlotItem.lastFileDir = os.path.dirname(fileName)
|
|
|
|
self.svg = QtSvg.QSvgGenerator()
|
|
self.svg.setFileName(fileName)
|
|
res = 120.
|
|
#bounds = self.mapRectToScene(self.boundingRect())
|
|
view = self.scene().views()[0]
|
|
bounds = view.viewport().rect()
|
|
bounds = QtCore.QRectF(0, 0, bounds.width(), bounds.height())
|
|
|
|
self.svg.setResolution(res)
|
|
#self.svg.setSize(QtCore.QSize(self.size().width(), self.size().height()))
|
|
self.svg.setViewBox(bounds)
|
|
|
|
self.svg.setSize(QtCore.QSize(bounds.width(), bounds.height()))
|
|
|
|
painter = QtGui.QPainter(self.svg)
|
|
#self.scene().render(painter, QtCore.QRectF(), view.mapToScene(bounds).boundingRect())
|
|
|
|
#items = self.scene().items()
|
|
#self.scene().views()[0].drawItems(painter, len(items), items)
|
|
|
|
#print view, type(view)
|
|
view.render(painter, bounds)
|
|
|
|
painter.end()
|
|
|
|
## Workaround to set pen widths correctly
|
|
import re
|
|
data = open(fileName).readlines()
|
|
for i in range(len(data)):
|
|
line = data[i]
|
|
m = re.match(r'(<g .*)stroke-width="1"(.*transform="matrix\(([^\)]+)\)".*)', line)
|
|
if m is not None:
|
|
#print "Matched group:", line
|
|
g = m.groups()
|
|
matrix = map(float, g[2].split(','))
|
|
#print "matrix:", matrix
|
|
scale = max(abs(matrix[0]), abs(matrix[3]))
|
|
if scale == 0 or scale == 1.0:
|
|
continue
|
|
data[i] = g[0] + ' stroke-width="%0.2g" ' % (1.0/scale) + g[1] + '\n'
|
|
#print "old line:", line
|
|
#print "new line:", data[i]
|
|
open(fileName, 'w').write(''.join(data))
|
|
|
|
|
|
def writeImage(self, fileName=None):
|
|
if fileName is None:
|
|
fileName = QtGui.QFileDialog.getSaveFileName()
|
|
fileName = str(fileName)
|
|
PlotItem.lastFileDir = os.path.dirname(fileName)
|
|
self.png = QtGui.QImage(int(self.size().width()), int(self.size().height()), QtGui.QImage.Format_ARGB32)
|
|
painter = QtGui.QPainter(self.png)
|
|
painter.setRenderHints(painter.Antialiasing | painter.TextAntialiasing)
|
|
self.scene().render(painter, QtCore.QRectF(), self.mapRectToScene(self.boundingRect()))
|
|
painter.end()
|
|
self.png.save(fileName)
|
|
|
|
def writeCsv(self, fileName=None):
|
|
if fileName is None:
|
|
fileName = QtGui.QFileDialog.getSaveFileName()
|
|
fileName = str(fileName)
|
|
PlotItem.lastFileDir = os.path.dirname(fileName)
|
|
|
|
fd = open(fileName, 'w')
|
|
data = [c.getData() for c in self.curves]
|
|
i = 0
|
|
while True:
|
|
done = True
|
|
for d in data:
|
|
if i < len(d[0]):
|
|
fd.write('%g,%g,'%(d[0][i], d[1][i]))
|
|
done = False
|
|
else:
|
|
fd.write(' , ,')
|
|
fd.write('\n')
|
|
if done:
|
|
break
|
|
i += 1
|
|
fd.close()
|
|
|
|
|
|
def saveState(self):
|
|
if not HAVE_WIDGETGROUP:
|
|
raise Exception("State save/restore requires WidgetGroup class.")
|
|
state = self.stateGroup.state()
|
|
state['paramList'] = self.paramList.copy()
|
|
#print "\nSAVE %s:\n" % str(self.name), state
|
|
#print "Saving state. averageGroup.isChecked(): %s state: %s" % (str(self.ctrl.averageGroup.isChecked()), str(state['averageGroup']))
|
|
return state
|
|
|
|
def restoreState(self, state):
|
|
if not HAVE_WIDGETGROUP:
|
|
raise Exception("State save/restore requires WidgetGroup class.")
|
|
if 'paramList' in state:
|
|
self.paramList = state['paramList'].copy()
|
|
|
|
self.stateGroup.setState(state)
|
|
self.updateSpectrumMode()
|
|
self.updateDownsampling()
|
|
self.updateAlpha()
|
|
self.updateDecimation()
|
|
|
|
self.stateGroup.setState(state)
|
|
self.updateXScale()
|
|
self.updateYScale()
|
|
self.updateParamList()
|
|
|
|
#print "\nRESTORE %s:\n" % str(self.name), state
|
|
#print "Restoring state. averageGroup.isChecked(): %s state: %s" % (str(self.ctrl.averageGroup.isChecked()), str(state['averageGroup']))
|
|
#avg = self.ctrl.averageGroup.isChecked()
|
|
#if avg != state['averageGroup']:
|
|
#print " WARNING: avgGroup is %s, should be %s" % (str(avg), str(state['averageGroup']))
|
|
|
|
|
|
def widgetGroupInterface(self):
|
|
return (None, PlotItem.saveState, PlotItem.restoreState)
|
|
|
|
def updateSpectrumMode(self, b=None):
|
|
if b is None:
|
|
b = self.ctrl.powerSpectrumGroup.isChecked()
|
|
for c in self.curves:
|
|
c.setSpectrumMode(b)
|
|
self.enableAutoScale()
|
|
self.recomputeAverages()
|
|
|
|
|
|
def updateDownsampling(self):
|
|
ds = self.downsampleMode()
|
|
for c in self.curves:
|
|
c.setDownsampling(ds)
|
|
self.recomputeAverages()
|
|
#for c in self.avgCurves.values():
|
|
#c[1].setDownsampling(ds)
|
|
|
|
|
|
def downsampleMode(self):
|
|
if self.ctrl.decimateGroup.isChecked():
|
|
if self.ctrl.manualDecimateRadio.isChecked():
|
|
ds = self.ctrl.downsampleSpin.value()
|
|
else:
|
|
ds = True
|
|
else:
|
|
ds = False
|
|
return ds
|
|
|
|
def updateDecimation(self):
|
|
if self.ctrl.maxTracesCheck.isChecked():
|
|
numCurves = self.ctrl.maxTracesSpin.value()
|
|
else:
|
|
numCurves = -1
|
|
|
|
curves = self.curves[:]
|
|
split = len(curves) - numCurves
|
|
for i in range(len(curves)):
|
|
if numCurves == -1 or i >= split:
|
|
curves[i].show()
|
|
else:
|
|
if self.ctrl.forgetTracesCheck.isChecked():
|
|
curves[i].free()
|
|
self.removeItem(curves[i])
|
|
else:
|
|
curves[i].hide()
|
|
|
|
|
|
def updateAlpha(self, *args):
|
|
(alpha, auto) = self.alphaState()
|
|
for c in self.curves:
|
|
c.setAlpha(alpha**2, auto)
|
|
|
|
#self.replot(autoRange=False)
|
|
|
|
def alphaState(self):
|
|
enabled = self.ctrl.alphaGroup.isChecked()
|
|
auto = self.ctrl.autoAlphaCheck.isChecked()
|
|
alpha = float(self.ctrl.alphaSlider.value()) / self.ctrl.alphaSlider.maximum()
|
|
if auto:
|
|
alpha = 1.0 ## should be 1/number of overlapping plots
|
|
if not enabled:
|
|
auto = False
|
|
alpha = 1.0
|
|
return (alpha, auto)
|
|
|
|
def pointMode(self):
|
|
if self.ctrl.pointsGroup.isChecked():
|
|
if self.ctrl.autoPointsCheck.isChecked():
|
|
mode = None
|
|
else:
|
|
mode = True
|
|
else:
|
|
mode = False
|
|
return mode
|
|
|
|
def wheelEvent(self, ev):
|
|
# disables panning the whole scene by mousewheel
|
|
ev.accept()
|
|
|
|
#def mousePressEvent(self, ev):
|
|
#self.mousePos = array([ev.pos().x(), ev.pos().y()])
|
|
#self.pressPos = self.mousePos.copy()
|
|
#QtGui.QGraphicsWidget.mousePressEvent(self, ev)
|
|
## NOTE: we will only receive move/release events if we run ev.accept()
|
|
#print 'press'
|
|
|
|
#def mouseReleaseEvent(self, ev):
|
|
#pos = array([ev.pos().x(), ev.pos().y()])
|
|
#print 'release'
|
|
#if sum(abs(self.pressPos - pos)) < 3: ## Detect click
|
|
#if ev.button() == QtCore.Qt.RightButton:
|
|
#print 'popup'
|
|
#self.ctrlMenu.popup(self.mapToGlobal(ev.pos()))
|
|
#self.mousePos = pos
|
|
#QtGui.QGraphicsWidget.mouseReleaseEvent(self, ev)
|
|
|
|
def resizeEvent(self, ev):
|
|
self.ctrlBtn.move(0, self.size().height() - self.ctrlBtn.size().height())
|
|
self.autoBtn.move(self.ctrlBtn.width(), self.size().height() - self.autoBtn.size().height())
|
|
|
|
def hoverMoveEvent(self, ev):
|
|
self.mousePos = ev.pos()
|
|
self.mouseScreenPos = ev.screenPos()
|
|
|
|
def ctrlBtnClicked(self):
|
|
self.ctrlMenu.popup(self.mouseScreenPos)
|
|
|
|
#def _checkLabelKey(self, key):
|
|
#if key not in self.labels:
|
|
#raise Exception("Label '%s' not found. Labels are: %s" % (key, str(self.labels.keys())))
|
|
|
|
def getLabel(self, key):
|
|
pass
|
|
#self._checkLabelKey(key)
|
|
#return self.labels[key]['item']
|
|
|
|
def _checkScaleKey(self, key):
|
|
if key not in self.scales:
|
|
raise Exception("Scale '%s' not found. Scales are: %s" % (key, str(self.scales.keys())))
|
|
|
|
def getScale(self, key):
|
|
self._checkScaleKey(key)
|
|
return self.scales[key]['item']
|
|
|
|
def setLabel(self, key, text=None, units=None, unitPrefix=None, **args):
|
|
self.getScale(key).setLabel(text=text, units=units, unitPrefix=unitPrefix, **args)
|
|
#if text is not None:
|
|
#self.labels[key]['text'] = text
|
|
#if units != None:
|
|
#self.labels[key]['units'] = units
|
|
#if unitPrefix != None:
|
|
#self.labels[key]['unitPrefix'] = unitPrefix
|
|
|
|
#text = self.labels[key]['text']
|
|
#units = self.labels[key]['units']
|
|
#unitPrefix = self.labels[key]['unitPrefix']
|
|
|
|
#if text is not '' or units is not '':
|
|
#l = self.getLabel(key)
|
|
#l.setText("%s (%s%s)" % (text, unitPrefix, units), **args)
|
|
#self.showLabel(key)
|
|
|
|
|
|
def showLabel(self, key, show=True):
|
|
self.getScale(key).showLabel(show)
|
|
#l = self.getLabel(key)
|
|
#p = self.labels[key]['pos']
|
|
#if show:
|
|
#l.show()
|
|
#if key in ['left', 'right']:
|
|
#self.layout.setColumnFixedWidth(p[1], l.size().width())
|
|
#l.setMaximumWidth(20)
|
|
#else:
|
|
#self.layout.setRowFixedHeight(p[0], l.size().height())
|
|
#l.setMaximumHeight(20)
|
|
#else:
|
|
#l.hide()
|
|
#if key in ['left', 'right']:
|
|
#self.layout.setColumnFixedWidth(p[1], 0)
|
|
#l.setMaximumWidth(0)
|
|
#else:
|
|
#self.layout.setRowFixedHeight(p[0], 0)
|
|
#l.setMaximumHeight(0)
|
|
|
|
def setTitle(self, title=None, **args):
|
|
if title is None:
|
|
self.titleLabel.setVisible(False)
|
|
self.layout.setRowFixedHeight(0, 0)
|
|
self.titleLabel.setMaximumHeight(0)
|
|
else:
|
|
self.titleLabel.setMaximumHeight(30)
|
|
self.layout.setRowFixedHeight(0, 30)
|
|
self.titleLabel.setVisible(True)
|
|
self.titleLabel.setText(title, **args)
|
|
|
|
def showScale(self, key, show=True):
|
|
s = self.getScale(key)
|
|
p = self.scales[key]['pos']
|
|
if show:
|
|
s.show()
|
|
#if key in ['left', 'right']:
|
|
#self.layout.setColumnFixedWidth(p[1], s.maximumWidth())
|
|
##s.setMaximumWidth(40)
|
|
#else:
|
|
#self.layout.setRowFixedHeight(p[0], s.maximumHeight())
|
|
#s.setMaximumHeight(20)
|
|
else:
|
|
s.hide()
|
|
#if key in ['left', 'right']:
|
|
#self.layout.setColumnFixedWidth(p[1], 0)
|
|
##s.setMaximumWidth(0)
|
|
#else:
|
|
#self.layout.setRowFixedHeight(p[0], 0)
|
|
#s.setMaximumHeight(0)
|
|
|
|
def _plotArray(self, arr, x=None):
|
|
if arr.ndim != 1:
|
|
raise Exception("Array must be 1D to plot (shape is %s)" % arr.shape)
|
|
if x is None:
|
|
x = np.arange(arr.shape[0])
|
|
if x.ndim != 1:
|
|
raise Exception("X array must be 1D to plot (shape is %s)" % x.shape)
|
|
c = PlotCurveItem(arr, x=x)
|
|
return c
|
|
|
|
|
|
|
|
def _plotMetaArray(self, arr, x=None, autoLabel=True):
|
|
inf = arr.infoCopy()
|
|
if arr.ndim != 1:
|
|
raise Exception('can only automatically plot 1 dimensional arrays.')
|
|
## create curve
|
|
try:
|
|
xv = arr.xvals(0)
|
|
#print 'xvals:', xv
|
|
except:
|
|
if x is None:
|
|
xv = arange(arr.shape[0])
|
|
else:
|
|
xv = x
|
|
c = PlotCurveItem()
|
|
c.setData(x=xv, y=arr.view(np.ndarray))
|
|
|
|
if autoLabel:
|
|
name = arr._info[0].get('name', None)
|
|
units = arr._info[0].get('units', None)
|
|
self.setLabel('bottom', text=name, units=units)
|
|
|
|
name = arr._info[1].get('name', None)
|
|
units = arr._info[1].get('units', None)
|
|
self.setLabel('left', text=name, units=units)
|
|
|
|
return c
|
|
|
|
def saveSvgClicked(self):
|
|
self.fileDialog = QtGui.QFileDialog()
|
|
#if PlotItem.lastFileDir is not None:
|
|
#self.fileDialog.setDirectory(PlotItem.lastFileDir)
|
|
self.fileDialog.setFileMode(QtGui.QFileDialog.AnyFile)
|
|
self.fileDialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
|
|
if PlotItem.lastFileDir is not None:
|
|
self.fileDialog.setDirectory(PlotItem.lastFileDir)
|
|
self.fileDialog.show()
|
|
QtCore.QObject.connect(self.fileDialog, QtCore.SIGNAL('fileSelected(const QString)'), self.writeSvg)
|
|
|
|
#def svgFileSelected(self, fileName):
|
|
##PlotWidget.lastFileDir = os.path.split(fileName)[0]
|
|
#self.writeSvg(str(fileName))
|
|
|
|
def saveImgClicked(self):
|
|
self.fileDialog = QtGui.QFileDialog()
|
|
#if PlotItem.lastFileDir is not None:
|
|
#self.fileDialog.setDirectory(PlotItem.lastFileDir)
|
|
if PlotItem.lastFileDir is not None:
|
|
self.fileDialog.setDirectory(PlotItem.lastFileDir)
|
|
self.fileDialog.setFileMode(QtGui.QFileDialog.AnyFile)
|
|
self.fileDialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
|
|
self.fileDialog.show()
|
|
QtCore.QObject.connect(self.fileDialog, QtCore.SIGNAL('fileSelected(const QString)'), self.writeImage)
|
|
|
|
def saveCsvClicked(self):
|
|
self.fileDialog = QtGui.QFileDialog()
|
|
#if PlotItem.lastFileDir is not None:
|
|
#self.fileDialog.setDirectory(PlotItem.lastFileDir)
|
|
if PlotItem.lastFileDir is not None:
|
|
self.fileDialog.setDirectory(PlotItem.lastFileDir)
|
|
self.fileDialog.setFileMode(QtGui.QFileDialog.AnyFile)
|
|
self.fileDialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
|
|
self.fileDialog.show()
|
|
QtCore.QObject.connect(self.fileDialog, QtCore.SIGNAL('fileSelected(const QString)'), self.writeCsv)
|
|
#def imgFileSelected(self, fileName):
|
|
##PlotWidget.lastFileDir = os.path.split(fileName)[0]
|
|
#self.writeImage(str(fileName))
|
|
|
|
|
|
class PlotWidgetManager(QtCore.QObject):
|
|
"""Used for managing communication between PlotWidgets"""
|
|
def __init__(self):
|
|
QtCore.QObject.__init__(self)
|
|
self.widgets = weakref.WeakValueDictionary() # Don't keep PlotWidgets around just because they are listed here
|
|
|
|
def addWidget(self, w, name):
|
|
self.widgets[name] = w
|
|
self.emit(QtCore.SIGNAL('widgetListChanged'), self.widgets.keys())
|
|
|
|
def removeWidget(self, name):
|
|
if name in self.widgets:
|
|
del self.widgets[name]
|
|
self.emit(QtCore.SIGNAL('widgetListChanged'), self.widgets.keys())
|
|
|
|
|
|
def listWidgets(self):
|
|
return self.widgets.keys()
|
|
|
|
def getWidget(self, name):
|
|
if name not in self.widgets:
|
|
return None
|
|
else:
|
|
return self.widgets[name]
|
|
|
|
def linkX(self, p1, p2):
|
|
QtCore.QObject.connect(p1, QtCore.SIGNAL('xRangeChanged'), p2.linkXChanged)
|
|
QtCore.QObject.connect(p2, QtCore.SIGNAL('xRangeChanged'), p1.linkXChanged)
|
|
p1.linkXChanged(p2)
|
|
#p2.setManualXScale()
|
|
|
|
def unlinkX(self, p1, p2):
|
|
QtCore.QObject.disconnect(p1, QtCore.SIGNAL('xRangeChanged'), p2.linkXChanged)
|
|
QtCore.QObject.disconnect(p2, QtCore.SIGNAL('xRangeChanged'), p1.linkXChanged)
|
|
|
|
def linkY(self, p1, p2):
|
|
QtCore.QObject.connect(p1, QtCore.SIGNAL('yRangeChanged'), p2.linkYChanged)
|
|
QtCore.QObject.connect(p2, QtCore.SIGNAL('yRangeChanged'), p1.linkYChanged)
|
|
p1.linkYChanged(p2)
|
|
#p2.setManualYScale()
|
|
|
|
def unlinkY(self, p1, p2):
|
|
QtCore.QObject.disconnect(p1, QtCore.SIGNAL('yRangeChanged'), p2.linkYChanged)
|
|
QtCore.QObject.disconnect(p2, QtCore.SIGNAL('yRangeChanged'), p1.linkYChanged)
|