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# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2016 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
QTVERSION = qt.qVersion()
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
if QTVERSION < "5.0":
self.setClickable(True)
self.setMovable(True)
else:
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.setResizeMode` 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 QTVERSION < "5.0":
setResizeMode = self.setResizeMode
else:
setResizeMode = self.setSectionResizeMode
if self.__auto_resize:
setResizeMode(Hdf5TreeModel.NAME_COLUMN, qt.QHeaderView.ResizeToContents)
setResizeMode(Hdf5TreeModel.TYPE_COLUMN, qt.QHeaderView.ResizeToContents)
setResizeMode(Hdf5TreeModel.SHAPE_COLUMN, qt.QHeaderView.ResizeToContents)
setResizeMode(Hdf5TreeModel.VALUE_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(Hdf5TreeModel.DESCRIPTION_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(Hdf5TreeModel.NODE_COLUMN, qt.QHeaderView.ResizeToContents)
setResizeMode(Hdf5TreeModel.LINK_COLUMN, qt.QHeaderView.ResizeToContents)
else:
setResizeMode(Hdf5TreeModel.NAME_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(Hdf5TreeModel.TYPE_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(Hdf5TreeModel.SHAPE_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(Hdf5TreeModel.VALUE_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(Hdf5TreeModel.DESCRIPTION_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(Hdf5TreeModel.NODE_COLUMN, qt.QHeaderView.Interactive)
setResizeMode(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)
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