diff options
Diffstat (limited to 'src/silx/gui/plot/tools/PlotToolButton.py')
-rw-r--r-- | src/silx/gui/plot/tools/PlotToolButton.py | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/silx/gui/plot/tools/PlotToolButton.py b/src/silx/gui/plot/tools/PlotToolButton.py new file mode 100644 index 0000000..3a14f77 --- /dev/null +++ b/src/silx/gui/plot/tools/PlotToolButton.py @@ -0,0 +1,92 @@ +# /*########################################################################## +# +# 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. +# +# ###########################################################################*/ +"""This module provides an abstract PlotToolButton that can be use to create +plot tools for a toolbar. +""" + +from __future__ import annotations + +__authors__ = ["V. Valls"] +__license__ = "MIT" +__date__ = "20/12/2023" + + +import logging +import weakref + +from silx.gui import qt + + +_logger = logging.getLogger(__name__) + + +class PlotToolButton(qt.QToolButton): + """A QToolButton connected to a :class:`~silx.gui.plot.PlotWidget`.""" + + def __init__(self, parent: qt.QWidget | None = None, plot=None): + super(PlotToolButton, self).__init__(parent) + self._plotRef = None + if plot is not None: + self.setPlot(plot) + + def plot(self): + """ + Returns the plot connected to the widget. + """ + return None if self._plotRef is None else self._plotRef() + + def setPlot(self, plot): + """ + Set the plot connected to the widget + + :param plot: :class:`.PlotWidget` instance on which to operate. + """ + previousPlot = self.plot() + + if previousPlot is plot: + return + if previousPlot is not None: + self._disconnectPlot(previousPlot) + + if plot is None: + self._plotRef = None + else: + self._plotRef = weakref.ref(plot) + self._connectPlot(plot) + + def _connectPlot(self, plot): + """ + Called when the plot is connected to the widget + + :param plot: :class:`.PlotWidget` instance + """ + pass + + def _disconnectPlot(self, plot): + """ + Called when the plot is disconnected from the widget + + :param plot: :class:`.PlotWidget` instance + """ + pass |