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71 lines
2.7 KiB
Python
71 lines
2.7 KiB
Python
from PyQt5 import QtWidgets
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from PyQt5.QtCore import QCoreApplication
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from matplotlib.backends.backend_qt5agg import (FigureCanvasQTAgg as
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FigureCanvas)
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from matplotlib.backends.backend_qt5agg import (NavigationToolbar2QT as
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NavigationToolbar)
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from matplotlib.figure import Figure
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_translate = QCoreApplication.translate
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class MplCanvas(FigureCanvas):
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def __init__(self, parent=None, width=4, height=5, dpi=100):
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self.fig = Figure(figsize=(width, height), dpi=dpi)
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self.ax = self.fig.add_subplot(111)
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FigureCanvas.__init__(self, self.fig)
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self.setParent(parent)
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FigureCanvas.setSizePolicy(self, QtWidgets.QSizePolicy.Expanding,
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QtWidgets.QSizePolicy.Expanding)
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FigureCanvas.updateGeometry(self)
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# override mouseMoveEvent with non-functional dummy
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# this will prevent the gui thread to hang while moving the mouse
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# while a large number of plots is shown simultaniously
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def mouseMoveEvent(self, event):
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pass
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def clear(self):
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self.ax.clear()
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self.fig.clear()
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def save(self, filename):
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try:
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self.fig.savefig(filename, dpi=300)
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except IOError:
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QtWidgets.QMessageBox.critical(
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self, _translate("MainWindow", "Error"),
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_translate("MainWindow", "Error saving figure! Please check "
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"permissions/free space of target path!"),
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QtWidgets.QMessageBox.Close, QtWidgets.QMessageBox.Close)
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class CustomNavigationToolbar(NavigationToolbar):
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toolitems = (
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(_translate("CustomNavigationToolbar", "Save"),
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_translate("CustomNavigationToolbar",
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"Save the figure"), "filesave",
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"save_figure"),
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(_translate("CustomNavigationToolbar", "Subplots"),
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_translate("CustomNavigationToolbar",
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"Configure subplots"), "subplots",
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"configure_subplots"),
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(None, None, None, None), )
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def __init__(self, canvas, parent, coordinates=True):
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NavigationToolbar.__init__(self, canvas, parent,
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coordinates=coordinates)
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class MplWidget(QtWidgets.QGraphicsView):
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def __init__(self, parent=None):
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QtWidgets.QGraphicsView.__init__(self, parent)
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self.canvas = MplCanvas()
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self.ntb = CustomNavigationToolbar(self.canvas, self,
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coordinates=False)
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self.vbl = QtWidgets.QVBoxLayout()
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self.vbl.addWidget(self.ntb)
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self.vbl.addWidget(self.canvas)
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self.setLayout(self.vbl)
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