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Diffstat (limited to 'silx/gui/data/DataViewerSelector.py')
| -rw-r--r-- | silx/gui/data/DataViewerSelector.py | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/silx/gui/data/DataViewerSelector.py b/silx/gui/data/DataViewerSelector.py deleted file mode 100644 index a1e9947..0000000 --- a/silx/gui/data/DataViewerSelector.py +++ /dev/null @@ -1,175 +0,0 @@ -# coding: utf-8 -# /*########################################################################## -# -# Copyright (c) 2016-2017 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 module defines a widget to be able to select the available view -of the DataViewer. -""" -from __future__ import division - -__authors__ = ["V. Valls"] -__license__ = "MIT" -__date__ = "12/02/2019" - -import weakref -import functools -from silx.gui import qt -import silx.utils.weakref - - -class DataViewerSelector(qt.QWidget): - """Widget to be able to select a custom view from the DataViewer""" - - def __init__(self, parent=None, dataViewer=None): - """Constructor - - :param QWidget parent: The parent of the widget - :param DataViewer dataViewer: The connected `DataViewer` - """ - super(DataViewerSelector, self).__init__(parent) - - self.__group = None - self.__buttons = {} - self.__buttonLayout = None - self.__buttonDummy = None - self.__dataViewer = None - - # Create the fixed layout - self.setLayout(qt.QHBoxLayout()) - layout = self.layout() - layout.setContentsMargins(0, 0, 0, 0) - self.__buttonLayout = qt.QHBoxLayout() - self.__buttonLayout.setContentsMargins(0, 0, 0, 0) - layout.addLayout(self.__buttonLayout) - layout.addStretch(1) - - if dataViewer is not None: - self.setDataViewer(dataViewer) - - def __updateButtons(self): - if self.__group is not None: - self.__group.deleteLater() - - # Clean up - for _, b in self.__buttons.items(): - b.deleteLater() - if self.__buttonDummy is not None: - self.__buttonDummy.deleteLater() - self.__buttonDummy = None - self.__buttons = {} - self.__buttonDummy = None - - self.__group = qt.QButtonGroup(self) - if self.__dataViewer is None: - return - - iconSize = qt.QSize(16, 16) - - for view in self.__dataViewer.getReachableViews(): - label = view.label() - icon = view.icon() - button = qt.QPushButton(label) - button.setIcon(icon) - button.setIconSize(iconSize) - button.setCheckable(True) - # the weak objects are needed to be able to destroy the widget safely - weakView = weakref.ref(view) - weakMethod = silx.utils.weakref.WeakMethodProxy(self.__setDisplayedView) - callback = functools.partial(weakMethod, weakView) - button.clicked.connect(callback) - self.__buttonLayout.addWidget(button) - self.__group.addButton(button) - self.__buttons[view] = button - - button = qt.QPushButton("Dummy") - button.setCheckable(True) - button.setVisible(False) - self.__buttonLayout.addWidget(button) - self.__group.addButton(button) - self.__buttonDummy = button - - self.__updateButtonsVisibility() - self.__displayedViewChanged(self.__dataViewer.displayedView()) - - def setDataViewer(self, dataViewer): - """Define the dataviewer connected to this status bar - - :param DataViewer dataViewer: The connected `DataViewer` - """ - if self.__dataViewer is dataViewer: - return - if self.__dataViewer is not None: - self.__dataViewer.dataChanged.disconnect(self.__updateButtonsVisibility) - self.__dataViewer.displayedViewChanged.disconnect(self.__displayedViewChanged) - self.__dataViewer = dataViewer - if self.__dataViewer is not None: - self.__dataViewer.dataChanged.connect(self.__updateButtonsVisibility) - self.__dataViewer.displayedViewChanged.connect(self.__displayedViewChanged) - self.__updateButtons() - - def setFlat(self, isFlat): - """Set the flat state of all the buttons. - - :param bool isFlat: True to display the buttons flatten. - """ - for b in self.__buttons.values(): - b.setFlat(isFlat) - self.__buttonDummy.setFlat(isFlat) - - def __displayedViewChanged(self, view): - """Called on displayed view changes""" - selectedButton = self.__buttons.get(view, self.__buttonDummy) - selectedButton.setChecked(True) - - def __setDisplayedView(self, refView, clickEvent=None): - """Display a data using the requested view - - :param DataView view: Requested view - :param clickEvent: Event sent by the clicked event - """ - if self.__dataViewer is None: - return - view = refView() - if view is None: - return - self.__dataViewer.setDisplayedView(view) - - def __checkAvailableButtons(self): - views = set(self.__dataViewer.getReachableViews()) - if views == set(self.__buttons.keys()): - return - # Recreate all the buttons - # TODO: We dont have to create everything again - # We expect the views stay quite stable - self.__updateButtons() - - def __updateButtonsVisibility(self): - """Called on data changed""" - if self.__dataViewer is None: - for b in self.__buttons.values(): - b.setVisible(False) - else: - self.__checkAvailableButtons() - availableViews = set(self.__dataViewer.currentAvailableViews()) - for view, button in self.__buttons.items(): - button.setVisible(view in availableViews) |