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# /*##########################################################################
#
# Copyright (c) 2018-2021 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.
#
# ###########################################################################*/
"""This script shows how to create a minimalistic
:class:`~silx.gui.plot.actions.PlotAction` that clear the plot.
This illustrates how to add more buttons in a plot widget toolbar.
"""
__authors__ = ["T. VINCENT"]
__license__ = "MIT"
__date__ = "14/02/2018"
from silx.gui.plot.actions import PlotAction
class ClearPlotAction(PlotAction):
"""A QAction that can be added to PlotWidget toolbar to clear the plot"""
def __init__(self, plot, parent=None):
super(ClearPlotAction, self).__init__(
plot,
icon="close",
text="Clear",
tooltip="Clear the plot",
triggered=self._clear,
parent=parent,
)
def _clear(self):
"""Handle action triggered and clear the plot"""
self.plot.clear()
if __name__ == "__main__":
from silx.gui import qt
from silx.gui.plot import Plot1D
app = qt.QApplication([]) # First create QApplication
plot = Plot1D() # Create plotting widget
# Create a toolbar and add it to the plot widget
toolbar = qt.QToolBar()
plot.addToolBar(toolbar)
# Create clear action and add it to the toolbar
action = ClearPlotAction(plot, parent=plot)
toolbar.addAction(action)
plot.addCurve((0, 1, 2, 3, 4), (0, 1, 1.5, 1, 0)) # Add a curve to the plot
plot.show() # Show the plot widget
app.exec() # Start Qt application
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