summaryrefslogtreecommitdiff
path: root/src/silx/gui/hdf5/Hdf5HeaderView.py
diff options
context:
space:
mode:
Diffstat (limited to 'src/silx/gui/hdf5/Hdf5HeaderView.py')
-rw-r--r--src/silx/gui/hdf5/Hdf5HeaderView.py184
1 files changed, 184 insertions, 0 deletions
diff --git a/src/silx/gui/hdf5/Hdf5HeaderView.py b/src/silx/gui/hdf5/Hdf5HeaderView.py
new file mode 100644
index 0000000..7255ce0
--- /dev/null
+++ b/src/silx/gui/hdf5/Hdf5HeaderView.py
@@ -0,0 +1,184 @@
+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 2016-2021 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.
+#
+# ###########################################################################*/
+
+__authors__ = ["V. Valls"]
+__license__ = "MIT"
+__date__ = "16/06/2017"
+
+
+from .. import qt
+from .Hdf5TreeModel import Hdf5TreeModel
+
+
+class Hdf5HeaderView(qt.QHeaderView):
+ """
+ Default HDF5 header
+
+ Manage auto-resize and context menu to display/hide columns
+ """
+
+ def __init__(self, orientation, parent=None):
+ """
+ Constructor
+
+ :param orientation qt.Qt.Orientation: Orientation of the header
+ :param parent qt.QWidget: Parent of the widget
+ """
+ super(Hdf5HeaderView, self).__init__(orientation, parent)
+ self.setContextMenuPolicy(qt.Qt.CustomContextMenu)
+ self.customContextMenuRequested.connect(self.__createContextMenu)
+
+ # default initialization done by QTreeView for it's own header
+ self.setSectionsClickable(True)
+ self.setSectionsMovable(True)
+ self.setDefaultAlignment(qt.Qt.AlignLeft | qt.Qt.AlignVCenter)
+ self.setStretchLastSection(True)
+
+ self.__auto_resize = True
+ self.__hide_columns_popup = True
+
+ def setModel(self, model):
+ """Override model to configure view when a model is expected
+
+ `qt.QHeaderView.setSectionResizeMode` expect already existing columns
+ to work.
+
+ :param model qt.QAbstractItemModel: A model
+ """
+ super(Hdf5HeaderView, self).setModel(model)
+ self.__updateAutoResize()
+
+ def __updateAutoResize(self):
+ """Update the view according to the state of the auto-resize"""
+ if self.__auto_resize:
+ self.setSectionResizeMode(Hdf5TreeModel.NAME_COLUMN, qt.QHeaderView.ResizeToContents)
+ self.setSectionResizeMode(Hdf5TreeModel.TYPE_COLUMN, qt.QHeaderView.ResizeToContents)
+ self.setSectionResizeMode(Hdf5TreeModel.SHAPE_COLUMN, qt.QHeaderView.ResizeToContents)
+ self.setSectionResizeMode(Hdf5TreeModel.VALUE_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.DESCRIPTION_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.NODE_COLUMN, qt.QHeaderView.ResizeToContents)
+ self.setSectionResizeMode(Hdf5TreeModel.LINK_COLUMN, qt.QHeaderView.ResizeToContents)
+ else:
+ self.setSectionResizeMode(Hdf5TreeModel.NAME_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.TYPE_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.SHAPE_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.VALUE_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.DESCRIPTION_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.NODE_COLUMN, qt.QHeaderView.Interactive)
+ self.setSectionResizeMode(Hdf5TreeModel.LINK_COLUMN, qt.QHeaderView.Interactive)
+
+ def setAutoResizeColumns(self, autoResize):
+ """Enable/disable auto-resize. When auto-resized, the header take care
+ of the content of the column to set fixed size of some of them, or to
+ auto fix the size according to the content.
+
+ :param autoResize bool: Enable/disable auto-resize
+ """
+ if self.__auto_resize == autoResize:
+ return
+ self.__auto_resize = autoResize
+ self.__updateAutoResize()
+
+ def hasAutoResizeColumns(self):
+ """Is auto-resize enabled.
+
+ :rtype: bool
+ """
+ return self.__auto_resize
+
+ autoResizeColumns = qt.Property(bool, hasAutoResizeColumns, setAutoResizeColumns)
+ """Property to enable/disable auto-resize."""
+
+ def setEnableHideColumnsPopup(self, enablePopup):
+ """Enable/disable a popup to allow to hide/show each column of the
+ model.
+
+ :param bool enablePopup: Enable/disable popup to hide/show columns
+ """
+ self.__hide_columns_popup = enablePopup
+
+ def hasHideColumnsPopup(self):
+ """Is popup to hide/show columns is enabled.
+
+ :rtype: bool
+ """
+ return self.__hide_columns_popup
+
+ enableHideColumnsPopup = qt.Property(bool, hasHideColumnsPopup, setAutoResizeColumns)
+ """Property to enable/disable popup allowing to hide/show columns."""
+
+ def __genHideSectionEvent(self, column):
+ """Generate a callback which change the column visibility according to
+ the event parameter
+
+ :param int column: logical id of the column
+ :rtype: callable
+ """
+ return lambda checked: self.setSectionHidden(column, not checked)
+
+ def __createContextMenu(self, pos):
+ """Callback to create and display a context menu
+
+ :param pos qt.QPoint: Requested position for the context menu
+ """
+ if not self.__hide_columns_popup:
+ return
+
+ model = self.model()
+ if model.columnCount() > 1:
+ menu = qt.QMenu(self)
+ menu.setTitle("Display/hide columns")
+
+ action = qt.QAction("Display/hide column", self)
+ action.setEnabled(False)
+ menu.addAction(action)
+
+ for column in range(model.columnCount()):
+ if column == 0:
+ # skip the main column
+ continue
+ text = model.headerData(column, qt.Qt.Horizontal, qt.Qt.DisplayRole)
+ action = qt.QAction("%s displayed" % text, self)
+ action.setCheckable(True)
+ action.setChecked(not self.isSectionHidden(column))
+ action.toggled.connect(self.__genHideSectionEvent(column))
+ menu.addAction(action)
+
+ menu.popup(self.viewport().mapToGlobal(pos))
+
+ def setSections(self, logicalIndexes):
+ """
+ Defines order of visible sections by logical indexes.
+
+ Use `Hdf5TreeModel.NAME_COLUMN` to set the list.
+
+ :param list logicalIndexes: List of logical indexes to display
+ """
+ for pos, column_id in enumerate(logicalIndexes):
+ current_pos = self.visualIndex(column_id)
+ self.moveSection(current_pos, pos)
+ self.setSectionHidden(column_id, False)
+ for column_id in set(range(self.model().columnCount())) - set(logicalIndexes):
+ self.setSectionHidden(column_id, True)