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# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2017 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 subclass :class:`PlotWidget` to tune its tools.
It subclasses a :class:`silx.gui.plot.PlotWidget` and adds toolbars and
a colorbar by using pluggable widgets:
- QAction from :mod:`silx.gui.plot.actions`
- QToolButton from :mod:`silx.gui.plot.PlotToolButtons`
- QToolBar from :mod:`silx.gui.plot.PlotTools`
- :class:`ColorBarWidget` from :mod:`silx.gui.plot.ColorBar`.
"""
__authors__ = ["T. Vincent"]
__license__ = "MIT"
__date__ = "05/09/2017"
import numpy
from silx.gui import qt
import silx.gui.plot
from silx.gui.plot import actions # QAction to use with PlotWidget
from silx.gui.plot import PlotToolButtons # QToolButton to use with PlotWidget
from silx.gui.plot.PlotTools import LimitsToolBar
from silx.gui.plot.ColorBar import ColorBarWidget
class MyPlotWidget(silx.gui.plot.PlotWidget):
"""PlotWidget with an ad hoc toolbar and a colorbar"""
def __init__(self, parent=None):
super(MyPlotWidget, self).__init__(parent)
# Add a tool bar to PlotWidget
toolBar = qt.QToolBar("Plot Tools", self)
self.addToolBar(toolBar)
# Add actions from silx.gui.plot.action to the toolbar
resetZoomAction = actions.control.ResetZoomAction(self, self)
toolBar.addAction(resetZoomAction)
# Add tool buttons from silx.gui.plot.PlotToolButtons
aspectRatioButton = PlotToolButtons.AspectToolButton(
parent=self, plot=self)
toolBar.addWidget(aspectRatioButton)
# Add limits tool bar from silx.gui.plot.PlotTools
limitsToolBar = LimitsToolBar(parent=self, plot=self)
self.addToolBar(qt.Qt.BottomToolBarArea, limitsToolBar)
self._initColorBar()
def _initColorBar(self):
"""Create the ColorBarWidget and add it to the PlotWidget"""
# Add a colorbar on the right side
colorBar = ColorBarWidget(parent=self, plot=self)
# Make ColorBarWidget background white by changing its palette
colorBar.setAutoFillBackground(True)
palette = colorBar.palette()
palette.setColor(qt.QPalette.Background, qt.Qt.white)
palette.setColor(qt.QPalette.Window, qt.Qt.white)
colorBar.setPalette(palette)
# Add the ColorBarWidget by changing PlotWidget's central widget
gridLayout = qt.QGridLayout()
gridLayout.setSpacing(0)
gridLayout.setContentsMargins(0, 0, 0, 0)
plot = self.getWidgetHandle() # Get the widget rendering the plot
gridLayout.addWidget(plot, 0, 0)
gridLayout.addWidget(colorBar, 0, 1)
gridLayout.setRowStretch(0, 1)
gridLayout.setColumnStretch(0, 1)
centralWidget = qt.QWidget()
centralWidget.setLayout(gridLayout)
self.setCentralWidget(centralWidget)
def main():
global app
app = qt.QApplication([])
# Create the ad hoc plot widget and change its default colormap
plot = MyPlotWidget()
plot.getDefaultColormap().setName('viridis')
plot.show()
# Add an image to the plot
x = numpy.outer(
numpy.linspace(-10, 10, 200), numpy.linspace(-10, 5, 150))
image = numpy.sin(x) / x
plot.addImage(image)
app.exec_()
if __name__ == '__main__':
main()
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