# -*- coding: utf-8 -*-
# This software and supporting documentation are distributed by
# Institut Federatif de Recherche 49
# CEA/NeuroSpin, Batiment 145,
# 91191 Gif-sur-Yvette cedex
# France
#
# This software is governed by the CeCILL license version 2 under
# French law and abiding by the rules of distribution of free software.
# You can use, modify and/or redistribute the software under the
# terms of the CeCILL license version 2 as circulated by CEA, CNRS
# and INRIA at the following URL "http://www.cecill.info".
#
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# modify and redistribute granted by the license, users are provided only
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# economic rights, and the successive licensors have only limited
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# The fact that you are presently reading this means that you have had
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from __future__ import absolute_import
import time
import os
from brainvisa.processing.qtgui.backwardCompatibleQt import QWidget, QVBoxLayout, QIcon, QSplitter, Qt, QSizePolicy, QSize, QTreeWidget, QTreeWidgetItem, QTreeWidgetItemIterator, QHBoxLayout, QPushButton, QObject, QFileDialog, QKeySequence, QInputDialog, QLineEdit, qApp
from brainvisa.processing import neuroLog
from brainvisa.processing import neuroException
from brainvisa.configuration import neuroConfig
from soma.qtgui.api import TextEditWithSearch
from soma.qt_gui import qt_backend
import sys
import sip
import six
[docs]class LogItemsViewer(QWidget):
"""
Widget to visualize a list of :py:class:`neuroLog.LogFile.Item`.
It is compound of a splitter with the list of items displayed as a QTreeWidget at the left
and the text of the content of the selected item at the right side.
A contextual menu is available on the content panel to search a string in the text.
"""
def __init__(self, logitems=[], parent=None):
QWidget.__init__(self, parent)
layout = QVBoxLayout()
self.setLayout(layout)
self._pixmaps = {}
splitter = QSplitter(Qt.Horizontal)
splitter.setSizePolicy(
QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Expanding))
layout.addWidget(splitter)
self._list = QTreeWidget(splitter)
self._list.setColumnCount(2)
self._list.setHeaderLabels([_t_('Description'), _t_('Date')])
self._list.setAllColumnsShowFocus(1)
self._list.setIconSize(QSize(32, 32))
self._list.setSizePolicy(
QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Expanding))
self._list.setRootIsDecorated(1)
self.searchResults = None
self.searchText = ""
self._content = TextEditWithSearch(splitter) # QTextView( splitter )
self._content.setReadOnly(True)
self._content.setSizePolicy(
QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Expanding))
splitter.setStretchFactor(0, 1)
splitter.setStretchFactor(1, 2)
self._list.currentItemChanged.connect(self._updateContent)
self.refresh(logitems)
firstItem = self._list.topLevelItem(0)
if firstItem:
self._updateContent(firstItem)
def refresh(self, logitems):
# Save list state
itemIndex = 0
currentItemIndex = -1
listState = []
it = QTreeWidgetItemIterator(self._list)
while it.value():
currentItem = it.value()
listState.append(currentItem.isExpanded())
if self._list.currentItem() is currentItem:
currentItemIndex = itemIndex
it += 1
itemIndex += 1
# Erase list
self._list.clear()
self._contents = {}
# Reread log and restore list state
after = None
currentItemList = []
itemIndex = -1
for item in logitems:
(after, itemIndex) = self._addLogItem(item, self._list, after,
itemIndex, listState, currentItemIndex, currentItemList)
if currentItemList:
self._list.setCurrentItem(currentItemList[0])
self._list.resizeColumnToContents(0)
def _addLogItem(self, item, parent, after, itemIndex, listState, currentItemIndex, currentItemList):
viewItem = QTreeWidgetItem(parent)
if viewItem.__class__.__hash__ is None:
viewItem.__class__.__hash__ = lambda self: sip.unwrapinstance(self)
viewItem.setText(0, item.what())
viewItem.setText(1, time.asctime(time.localtime(item.when())))
if item.icon():
pixmap = self._pixmaps.get(item.icon())
if pixmap is None:
pixmap = QIcon(
os.path.join(neuroConfig.iconPath, item.icon()))
self._pixmaps[item.icon()] = pixmap
viewItem.setIcon(0, pixmap)
content = item.html()
if content:
self._contents[viewItem] = content
itemIndex += 1
isOpen = 0
if itemIndex < len(listState):
isOpen = listState[itemIndex]
if itemIndex == currentItemIndex:
currentItemList.append(viewItem)
for child in item.children():
(after, itemIndex) = self._addLogItem(child, viewItem, after,
itemIndex, listState, currentItemIndex, currentItemList)
viewItem.setExpanded(isOpen)
return (viewItem, itemIndex)
def _updateContent(self, item):
self._content.setText(six.text_type(self._contents.get(item, '')))
def keyPressEvent(self, keyEvent):
if (self._list.hasFocus()):
if (keyEvent.matches(QKeySequence.Find)):
(res, ok) = QInputDialog.getText(
self, "Find", "Text to find :", QLineEdit.Normal, self.searchText)
if ok:
self.searchText = res
if self.searchText and ok:
self.searchResults = self.findItem(self.searchText)
if (self.searchResults):
try:
item = next(self.searchResults)
except StopIteration:
item = None
elif (keyEvent.matches(QKeySequence.FindNext)):
if (self.searchResults is not None):
if (self.searchResults):
try:
item = next(self.searchResults)
except StopIteration:
item = None
if item is None:
self.searchResults.close()
self.searchResults = None
else:
QWidget.keyPressEvent(self, keyEvent)
else:
QWidget.keyPressEvent(self, keyEvent)
[docs] def findItem(self, name):
"""
Find items that contain the string given in parameters in their name. Each found item is selected and yield (and replace previous selection).
Wide search.
@type name: string
@param name: string searched in items names.
@rtype: generator
@return: a generator
"""
it = QTreeWidgetItemIterator(self._list)
lastSelection = None
while it.value():
item = it.value()
if item.text(0).lower().find(name.lower()) >= 0:
self._list.setCurrentItem(item)
if lastSelection:
lastSelection.setSelected(False)
lastSelection = item
yield item
it += 1
yield None
[docs]class LogViewer(QWidget):
"""
A viewer for a log file. The file is read and its items are displayed in a LogItemsViewer.
Buttons are available at the bottom of the window to refresh the display,
close the window or open a new log file.
"""
def __init__(self, fileName, parent=None, name=None):
QWidget.__init__(self, parent)
if name:
self.setObjectName(name)
layout = QVBoxLayout()
self.setLayout(layout)
if getattr(LogViewer, 'pixIcon', None) is None:
setattr(LogViewer, 'pixIcon', QIcon(
os.path.join(neuroConfig.iconPath, 'icon_log.png')))
self.setWindowIcon(self.pixIcon)
self.logitems_viewer = LogItemsViewer([], self)
layout.addWidget(self.logitems_viewer)
hb = QHBoxLayout()
layout.addLayout(hb)
hb.setContentsMargins(5, 5, 5, 5)
btn = QPushButton(_t_('&Refresh'))
btn.setSizePolicy(QSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed))
hb.addWidget(btn)
btn.clicked.connect(self.refresh)
btn = QPushButton(_t_('&Close'))
hb.addWidget(btn)
btn.setSizePolicy(QSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed))
btn.clicked.connect(self.close)
btn = QPushButton(_t_('&Open...'))
hb.addWidget(btn)
btn.setSizePolicy(QSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed))
btn.clicked.connect(self.open)
neuroConfig.registerObject(self)
self.setLogFile(fileName)
ds = qApp.desktop().size()
self.resize(min(1200, ds.width()), min(800, ds.height()))
def setLogFile(self, fileName):
self._fileName = fileName
self.setWindowTitle(self._fileName)
self.refresh()
def closeEvent(self, event):
neuroConfig.unregisterObject(self)
QWidget.closeEvent(self, event)
event.accept()
def refresh(self):
try:
reader = neuroLog.LogFileReader(self._fileName)
except IOError:
neuroException.showException()
reader = None
# Reread log and restore list state
logitems = reader.read()
self.logitems_viewer.refresh(logitems)
def open(self):
# QFileDialog.getOpenFileName( QWidget * parent = 0, const QString & caption = QString(), const QString & dir = QString(), const QString & filter = QString(), QString * selectedFilter = 0, Options options = 0)
# workaround a bug in PyQt ? Param 5 doesn't work; try to use kwargs
import sipconfig
if sipconfig.Configuration().sip_version >= 0x040a00:
logFileName = six.text_type(qt_backend.getOpenFileName(
None, _t_('Open log file'), self._fileName, '', options=QFileDialog.DontUseNativeDialog))
else:
logFileName = six.text_type(qt_backend.getOpenFileName(
None, _t_('Open log file'), self._fileName, '', None, QFileDialog.DontUseNativeDialog))
if logFileName:
try:
self.setLogFile(logFileName)
except Exception:
neuroException.showException()
def showLog(fileName):
l = LogViewer(fileName)
l.show()
