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#!/usr/bin/env python
# /*##########################################################################
#
# Copyright (c) 2023 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
"""
Demonstration window that displays a wait icon until the plot is updated
"""
import numpy.random
from silx.gui import qt
from silx.gui.widgets.WaitingOverlay import WaitingOverlay
from silx.gui.plot import Plot2D
class MyMainWindow(qt.QMainWindow):
WAITING_TIME = 2000 # ms
def __init__(self, parent=None):
super().__init__(parent)
# central plot
self._plot = Plot2D()
self._waitingOverlay = WaitingOverlay(self._plot)
self.setCentralWidget(self._plot)
# button to trigger image generation
self._rightPanel = qt.QWidget(self)
self._rightPanel.setLayout(qt.QVBoxLayout())
self._button = qt.QPushButton("generate image", self)
self._rightPanel.layout().addWidget(self._button)
self._dockWidget = qt.QDockWidget()
self._dockWidget.setWidget(self._rightPanel)
self.addDockWidget(qt.Qt.RightDockWidgetArea, self._dockWidget)
# set up
self._waitingOverlay.hide()
self._waitingOverlay.setIconSize(qt.QSize(60, 60))
# connect signal / slot
self._button.clicked.connect(self._triggerImageCalculation)
def _generateRandomData(self):
self.setData(numpy.random.random(1000 * 500).reshape((1000, 500)))
self._button.setEnabled(True)
def setData(self, data):
self._plot.addImage(data)
self._waitingOverlay.hide()
def _triggerImageCalculation(self):
self._plot.clear()
self._button.setEnabled(False)
self._waitingOverlay.show()
qt.QTimer.singleShot(self.WAITING_TIME, self._generateRandomData)
qapp = qt.QApplication([])
window = MyMainWindow()
window.show()
qapp.exec_()
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