/usr/lib/python2.7/dist-packages/ginga/mplw/FigureCanvasQt.py is in python-ginga 2.6.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# GingaCanvasQt.py -- classes for the display of FITS files in
# Matplotlib FigureCanvas
#
# Eric Jeschke (eric@naoj.org)
#
# Copyright (c) Eric R. Jeschke. All rights reserved.
# This is open-source software licensed under a BSD license.
# Please see the file LICENSE.txt for details.
from __future__ import print_function
from ginga.toolkit import toolkit
if toolkit == 'qt5':
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as QtFigureCanvas
else:
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as QtFigureCanvas
from ginga.qtw.QtHelp import QtGui, QtCore
def setup_Qt(widget, viewer):
def resizeEvent(*args):
rect = widget.geometry()
x1, y1, x2, y2 = rect.getCoords()
width = x2 - x1
height = y2 - y1
if viewer is not None:
viewer.configure_window(width, height)
widget.setFocusPolicy(QtCore.Qt.FocusPolicy(
QtCore.Qt.TabFocus |
QtCore.Qt.ClickFocus |
QtCore.Qt.StrongFocus |
QtCore.Qt.WheelFocus))
widget.setMouseTracking(True)
widget.setAcceptDrops(True)
# Matplotlib has a bug where resize events are not reported
widget.connect(widget, QtCore.SIGNAL('resizeEvent()'),
resizeEvent)
class FigureCanvas(QtFigureCanvas):
"""Ultimately, this is a QWidget (as well as a FigureCanvasAgg, etc.).
"""
def __init__(self, fig, parent=None, width=5, height=4, dpi=100):
QtFigureCanvas.__init__(self, fig)
self.viewer = None
setup_Qt(self, None)
self.setParent(parent)
FigureCanvas.setSizePolicy(self,
QtGui.QSizePolicy.Expanding,
QtGui.QSizePolicy.Expanding)
FigureCanvas.updateGeometry(self)
def resizeEvent(self, event):
rect = self.geometry()
x1, y1, x2, y2 = rect.getCoords()
width = x2 - x1
height = y2 - y1
if self.viewer is not None:
self.viewer.configure_window(width, height)
return super(FigureCanvas, self).resizeEvent(event)
def sizeHint(self):
width, height = 300, 300
if self.viewer is not None:
width, height = self.viewer.get_desired_size()
return QtCore.QSize(width, height)
def set_viewer(self, viewer):
self.viewer = viewer
#END
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