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# coding: utf-8
# /*##########################################################################
# Copyright (C) 2018 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.
#
# ############################################################################*/
"""Browse a data file with a GUI"""
__authors__ = ["V. Valls"]
__license__ = "MIT"
__date__ = "12/10/2018"
import logging
import os.path
from silx.gui import qt
from silx.gui.data.DataViewerFrame import DataViewerFrame
_logger = logging.getLogger(__name__)
class _HeaderLabel(qt.QLabel):
def __init__(self, parent=None):
qt.QLabel.__init__(self, parent=parent)
self.setFrameShape(qt.QFrame.StyledPanel)
def sizeHint(self):
return qt.QSize(10, 30)
def minimumSizeHint(self):
return qt.QSize(10, 30)
def setData(self, filename, path):
if filename == "" and path == "":
text = ""
elif filename == "":
text = path
else:
text = "%s::%s" % (filename, path)
self.setText(text)
tooltip = ""
template = "<li><b>%s</b>: %s</li>"
tooltip += template % ("Directory", os.path.dirname(filename))
tooltip += template % ("File name", os.path.basename(filename))
tooltip += template % ("Data path", path)
tooltip = "<ul>%s</ul>" % tooltip
tooltip = "<html>%s</html>" % tooltip
self.setToolTip(tooltip)
def paintEvent(self, event):
painter = qt.QPainter(self)
opt = qt.QStyleOptionHeader()
opt.orientation = qt.Qt.Horizontal
opt.text = self.text()
opt.textAlignment = self.alignment()
opt.direction = self.layoutDirection()
opt.fontMetrics = self.fontMetrics()
opt.palette = self.palette()
opt.state = qt.QStyle.State_Active
opt.position = qt.QStyleOptionHeader.Beginning
style = self.style()
# Background
margin = -1
opt.rect = self.rect().adjusted(margin, margin, -margin, -margin)
style.drawControl(qt.QStyle.CE_HeaderSection, opt, painter, None)
# Frame border and text
super(_HeaderLabel, self).paintEvent(event)
class DataPanel(qt.QWidget):
def __init__(self, parent=None, context=None):
qt.QWidget.__init__(self, parent=parent)
self.__customNxdataItem = None
self.__dataTitle = _HeaderLabel(self)
self.__dataTitle.setVisible(False)
self.__dataViewer = DataViewerFrame(self)
self.__dataViewer.setGlobalHooks(context)
layout = qt.QVBoxLayout(self)
layout.setSpacing(0)
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(self.__dataTitle)
layout.addWidget(self.__dataViewer)
def getData(self):
return self.__dataViewer.data()
def getCustomNxdataItem(self):
return self.__customNxdataItem
def setData(self, data):
self.__customNxdataItem = None
self.__dataViewer.setData(data)
self.__dataTitle.setVisible(data is not None)
if data is not None:
self.__dataTitle.setVisible(True)
if hasattr(data, "name"):
if hasattr(data, "file"):
filename = str(data.file.filename)
else:
filename = ""
path = data.name
else:
filename = ""
path = ""
self.__dataTitle.setData(filename, path)
def setCustomDataItem(self, item):
self.__customNxdataItem = item
if item is not None:
data = item.getVirtualGroup()
else:
data = None
self.__dataViewer.setData(data)
self.__dataTitle.setVisible(item is not None)
if item is not None:
text = item.text()
self.__dataTitle.setText(text)
def removeDatasetsFrom(self, root):
"""
Remove all datasets provided by this root
.. note:: This function do not update data stored inside
customNxdataItem cause in the silx-view context this item is
already updated on his own.
:param root: The root file of datasets to remove
"""
data = self.__dataViewer.data()
if data is not None:
if data.file is not None:
# That's an approximation, IS can't be used as h5py generates
# To objects for each requests to a node
if data.file.filename == root.file.filename:
self.__dataViewer.setData(None)
def replaceDatasetsFrom(self, removedH5, loadedH5):
"""
Replace any dataset from any NXdata items using the same dataset name
from another root.
Usually used when a file was synchronized.
.. note:: This function do not update data stored inside
customNxdataItem cause in the silx-view context this item is
already updated on his own.
:param removedRoot: The h5py root file which is replaced
(which have to be removed)
:param loadedRoot: The new h5py root file which have to be used
instread.
"""
data = self.__dataViewer.data()
if data is not None:
if data.file is not None:
if data.file.filename == removedH5.file.filename:
# Try to synchonize the viewed data
try:
# TODO: It have to update the data without changing the
# view which is not so easy
newData = loadedH5[data.name]
self.__dataViewer.setData(newData)
except Exception:
_logger.debug("Backtrace", exc_info=True)
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