Source code for pyqtgraph.widgets.PlotWidget

# -*- coding: utf-8 -*-
"""
PlotWidget.py -  Convenience class--GraphicsView widget displaying a single PlotItem
Copyright 2010  Luke Campagnola
Distributed under MIT/X11 license. See license.txt for more infomation.
"""

from ..Qt import QtCore, QtGui
from .GraphicsView import *
from ..graphicsItems.PlotItem import *

__all__ = ['PlotWidget']
[docs]class PlotWidget(GraphicsView): # signals wrapped from PlotItem / ViewBox sigRangeChanged = QtCore.Signal(object, object) sigTransformChanged = QtCore.Signal(object) """ :class:`GraphicsView <pyqtgraph.GraphicsView>` widget with a single :class:`PlotItem <pyqtgraph.PlotItem>` inside. The following methods are wrapped directly from PlotItem: :func:`addItem <pyqtgraph.PlotItem.addItem>`, :func:`removeItem <pyqtgraph.PlotItem.removeItem>`, :func:`clear <pyqtgraph.PlotItem.clear>`, :func:`setXRange <pyqtgraph.ViewBox.setXRange>`, :func:`setYRange <pyqtgraph.ViewBox.setYRange>`, :func:`setRange <pyqtgraph.ViewBox.setRange>`, :func:`autoRange <pyqtgraph.ViewBox.autoRange>`, :func:`setXLink <pyqtgraph.ViewBox.setXLink>`, :func:`setYLink <pyqtgraph.ViewBox.setYLink>`, :func:`viewRect <pyqtgraph.ViewBox.viewRect>`, :func:`setMouseEnabled <pyqtgraph.ViewBox.setMouseEnabled>`, :func:`enableAutoRange <pyqtgraph.ViewBox.enableAutoRange>`, :func:`disableAutoRange <pyqtgraph.ViewBox.disableAutoRange>`, :func:`setAspectLocked <pyqtgraph.ViewBox.setAspectLocked>`, :func:`setLimits <pyqtgraph.ViewBox.setLimits>`, :func:`register <pyqtgraph.ViewBox.register>`, :func:`unregister <pyqtgraph.ViewBox.unregister>` For all other methods, use :func:`getPlotItem <pyqtgraph.PlotWidget.getPlotItem>`. """
[docs] def __init__(self, parent=None, background='default', **kargs): """When initializing PlotWidget, *parent* and *background* are passed to :func:`GraphicsWidget.__init__() <pyqtgraph.GraphicsWidget.__init__>` and all others are passed to :func:`PlotItem.__init__() <pyqtgraph.PlotItem.__init__>`.""" GraphicsView.__init__(self, parent, background=background) self.setSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding) self.enableMouse(False) self.plotItem = PlotItem(**kargs) self.setCentralItem(self.plotItem) ## Explicitly wrap methods from plotItem ## NOTE: If you change this list, update the documentation above as well. for m in ['addItem', 'removeItem', 'autoRange', 'clear', 'setXRange', 'setYRange', 'setRange', 'setAspectLocked', 'setMouseEnabled', 'setXLink', 'setYLink', 'enableAutoRange', 'disableAutoRange', 'setLimits', 'register', 'unregister', 'viewRect']: setattr(self, m, getattr(self.plotItem, m)) #QtCore.QObject.connect(self.plotItem, QtCore.SIGNAL('viewChanged'), self.viewChanged) self.plotItem.sigRangeChanged.connect(self.viewRangeChanged)
def close(self): self.plotItem.close() self.plotItem = None #self.scene().clear() #self.mPlotItem.close() self.setParent(None) super(PlotWidget, self).close() def __getattr__(self, attr): ## implicitly wrap methods from plotItem if hasattr(self.plotItem, attr): m = getattr(self.plotItem, attr) if hasattr(m, '__call__'): return m raise NameError(attr) def viewRangeChanged(self, view, range): #self.emit(QtCore.SIGNAL('viewChanged'), *args) self.sigRangeChanged.emit(self, range) def widgetGroupInterface(self): return (None, PlotWidget.saveState, PlotWidget.restoreState) def saveState(self): return self.plotItem.saveState() def restoreState(self, state): return self.plotItem.restoreState(state)
[docs] def getPlotItem(self): """Return the PlotItem contained within.""" return self.plotItem