/usr/lib/python2.7/dist-packages/sardana/taurus/qt/qtgui/extra_macroexecutor/sequenceeditor/model.py is in python-sardana 1.6.1-1.
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##############################################################################
##
## This file is part of Sardana
##
## http://www.sardana-controls.org/
##
## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
## Sardana is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Sardana is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with Sardana. If not, see <http://www.gnu.org/licenses/>.
##
##############################################################################
"""
model.py:
"""
from lxml import etree
from taurus.external.qt import Qt
from sardana.taurus.core.tango.sardana import macro
class MacroSequenceTreeModel(Qt.QAbstractItemModel):
def __init__(self, parent=None):
Qt.QAbstractItemModel.__init__(self, parent)
self.columns = 4
self.setRoot(macro.SequenceNode())
self.headers = ["Macro", "Parameters", "Progress", "Pause"]
def root(self):
return self._root
def setRoot(self, root):
self._root = root
self.reset()
def clearSequence(self):
self.setRoot(macro.SequenceNode())
def isEmpty(self):
return len(self.root()) == 0
def flags(self, index):
column = index.column()
node = self.nodeFromIndex(index)
flags = Qt.Qt.ItemIsEnabled
if column == 0:
flags |= Qt.Qt.ItemIsSelectable
elif column == 1:
if isinstance(node, macro.SingleParamNode) and \
not node.type() == "User":
flags |= Qt.Qt.ItemIsEditable
else:
flags |= Qt.Qt.ItemIsSelectable
elif column == 2:
flags |= Qt.Qt.ItemIsSelectable
elif index.column() == 3:
flags |= (Qt.Qt.ItemIsSelectable | Qt.Qt.ItemIsEditable)
if isinstance(node, macro.MacroNode):
flags |= Qt.Qt.ItemIsDragEnabled
if node.isAllowedHooks():
flags |= Qt.Qt.ItemIsDropEnabled
return flags
def _insertRow(self, parentIndex, node=None, row=-1):
parentNode = self.nodeFromIndex(parentIndex)
if row == -1: row = len(parentNode)
if isinstance(parentNode, macro.RepeatParamNode):
if node == None: node = parentNode.newRepeat()
self.beginInsertRows(parentIndex, row, row)
row = parentNode.insertChild(node, row)
self.endInsertRows()
return self.index(row, 0, parentIndex)
def _removeRow(self, index):
"""This method is used remove macro (pased via index)"""
node = self.nodeFromIndex(index)
parentIndex = index.parent()
parentNode = self.nodeFromIndex(parentIndex)
row = parentNode.rowOfChild(node)
self.beginRemoveRows(parentIndex, row, row)
parentNode.removeChild(node)
self.endRemoveRows()
def _upRow(self, index):
node = self.nodeFromIndex(index)
parentIndex = index.parent()
parentNode = self.nodeFromIndex(parentIndex)
row = parentNode.rowOfChild(node)
self._removeRow(index)
newIndex = self._insertRow(parentIndex, node, row - 1)
if isinstance(parentNode, macro.RepeatParamNode):
parentNode.arrangeIndexes()
return newIndex
def _downRow(self, index):
node = self.nodeFromIndex(index)
parentIndex = index.parent()
parentNode = self.nodeFromIndex(parentIndex)
row = parentNode.rowOfChild(node)
self._removeRow(index)
newIndex = self._insertRow(parentIndex, node, row + 1)
if isinstance(parentNode, macro.RepeatParamNode):
parentNode.arrangeIndexes()
return newIndex
def _leftRow(self, index):
"""This method is used to move selected macro (pased via index)
to it's grandparent's hook list. In tree representation it basically move macro to the left"""
node = self.nodeFromIndex(index)
parentIndex = index.parent()
grandParentIndex = parentIndex.parent()
self._removeRow(index)
return self._insertRow(grandParentIndex, node)
def _rightRow(self, index):
"""This method is used to move selected macro (pased via index)
to it's grandparent's hook list. In tree representation it basically move macro to the left"""
node = self.nodeFromIndex(index)
parentIndex = index.parent()
row = index.row()
self._removeRow(index)
newParentIndex = self.index(row, 0, parentIndex)
return self._insertRow(newParentIndex, node)
def rowCount(self, parent):
branchNode = self.nodeFromIndex(parent)
return len(branchNode)
def columnCount(self, parent):
return self.columns
def data(self, index, role):
if role == Qt.Qt.DisplayRole:
node = self.nodeFromIndex(index)
if index.column() == 0:
return Qt.QVariant(node.name())
elif index.column() == 1:
return Qt.QVariant(node.value())
elif index.column() == 2:
if isinstance(node, macro.MacroNode):
return Qt.QVariant(node.progress())
elif role == Qt.Qt.DecorationRole:
node = self.nodeFromIndex(index)
if index.column() == 3:
if isinstance(node, macro.MacroNode):
if node.isPause():
return Qt.QVariant(Qt.QIcon(":/actions/media-playback-pause.svg"))
return Qt.QVariant()
def setData (self, index, value, role=Qt.Qt.EditRole):
node = self.nodeFromIndex(index)
if index.column() == 1:
if isinstance(node, macro.SingleParamNode):
node.setValue(Qt.from_qvariant(value, str))
self.emit(Qt.SIGNAL("dataChanged(QModelIndex,QModelIndex)"), index, index)
while True:
index = index.parent()
node = self.nodeFromIndex(index)
if isinstance(node, macro.MacroNode):
self.emit(Qt.SIGNAL("dataChanged(QModelIndex,QModelIndex)"), index, index.sibling(index.row(), self.columnCount(index)))
break
elif index.column() == 2:
progress = Qt.from_qvariant(value, float)
node.setProgress(progress)
self.emit(Qt.SIGNAL("dataChanged(QModelIndex,QModelIndex)"), index, index)
elif index.column() == 3:
node.setPause(Qt.from_qvariant(value, bool))
self.emit(Qt.SIGNAL("dataChanged(QModelIndex,QModelIndex)"), index, index)
return True
def headerData(self, section, orientation, role):
if orientation == Qt.Qt.Horizontal and role == Qt.Qt.DisplayRole:
return Qt.QVariant(self.headers[section])
return Qt.QVariant()
def index(self, row, column, parent):
assert self.root() is not None
branchNode = self.nodeFromIndex(parent)
assert branchNode is not None
return self.createIndex(row, column, branchNode.child(row))
def parent(self, child):
node = self.nodeFromIndex(child)
if node is None:
return Qt.QModelIndex()
parent = node.parent()
if parent is None:
return Qt.QModelIndex()
grandparent = parent.parent()
if grandparent is None:
return Qt.QModelIndex()
row = grandparent.rowOfChild(parent)
assert row != -1
return self.createIndex(row, 0, parent)
def nodeFromIndex(self, index):
if index.isValid():
return index.internalPointer()
else:
return self.root()
def toXmlString(self, pretty=False, withId=True):
xmlSequence = self.root().toXml(withId=withId)
xmlTree = etree.ElementTree(xmlSequence)
xmlString = etree.tostring(xmlTree, pretty_print=pretty)
return xmlString
def fromXmlString(self, xmlString):
xmlElement = etree.fromstring(xmlString)
newRoot = macro.SequenceNode(None)
newRoot.fromXml(xmlElement)
self.setRoot(newRoot)
self.reset()
return newRoot
def fromPlainText(self, text):
newRoot = macro.SequenceNode(None)
newRoot.fromPlainText(text)
self.setRoot(newRoot)
self.reset()
return newRoot
def assignIds(self):
"""
Assigns ids for all macros present in the sequence. If certain macro
already had an id, it stays without change. A list of all ids is returned
:return: (list)
"""
parentNode = self.root()
return self.__assignIds(parentNode)
def __assignIds(self, parentNode):
ids = []
for childNode in parentNode.children():
if isinstance(childNode, macro.MacroNode):
id = childNode.assignId()
ids.append(id)
ids.extend(self.__assignIds(childNode))
return ids
def firstMacroId(self):
return self.root().child(0).id()
def lastMacroId(self):
root = self.root()
return root.child(len(root.children()) - 1).id()
def createIdIndexDictionary(self):
parentIndex = Qt.QModelIndex()
parentNode = self.root()
return self.__createIdIndexDictionary(parentIndex, parentNode)
def __createIdIndexDictionary(self, parentIndex, parentNode):
d = {}
for row, child in enumerate(parentNode.children()):
if isinstance(child, macro.MacroNode):
index = self.index(row, 0, parentIndex)
d[child.id()] = index
d.update(self.__createIdIndexDictionary(index, child))
return d
# def supportedDropActions(self):
# return Qt.Qt.CopyAction | Qt.Qt.MoveAction
# def mimeTypes(self):
# types = Qt.QStringList()
# types.append("text/xml")
# return types
# def mimeData(self, indexes):
# mimeData = Qt.QMimeData()
# encodedData = Qt.QByteArray()
# stream = Qt.QDataStream(encodedData, Qt.QIODevice.WriteOnly)
# doc = xml.dom.minidom.Document()
# for i,index in enumerate(indexes):
# if i % 2:
# continue
# text = self.nodeFromIndex(index).toXml(doc).toxml()
# stream.writeString(text)
#
# mimeData.setData("text/xml", encodedData)
# return mimeData
#
# def dropMimeData(self, data, action, row, column, parent):
# if action == Qt.Qt.IgnoreAction:
# return True
# if not data.hasFormat("text/xml"):
# return False
#
# encodedData = data.data("text/xml")
# stream = Qt.QDataStream(encodedData, Qt.QIODevice.ReadOnly)
# newItems = Qt.QStringList()
# rows = 0
#
# while(not stream.atEnd()):
# text = stream.readString()
# newItems.append(text)
# rows += 1
#
# sequence = self.nodeFromIndex(parent)
#
# for text in newItems:
# macroNode = macro.MacroNode()
# macroNode.fromDoc(xml.dom.minidom.parseString(text))
# self.insertMacro(sequence, macroNode, row, False)
# macros = [macro.name() for macro in macroNode.allMacros()]
# if action == Qt.Qt.CopyAction:
# self.emit(Qt.SIGNAL("macrosAdded"), macros, macroNode.allMotors())
# self.emit(Qt.SIGNAL("dataChanged"))
# return True
class MacroSequenceProxyModel(Qt.QSortFilterProxyModel):
def __init__(self, parent=None):
Qt.QSortFilterProxyModel.__init__(self, parent)
self.setDynamicSortFilter(True)
self.headers = ["Macro", "Parameters", "Progress", "Pause"]
self.columns = 4
def __getattr__(self, name):
return getattr(self.sourceModel(), name)
def nodeFromIndex(self, index):
sourceIndex = self.mapToSource(index)
node = self.sourceModel().nodeFromIndex(sourceIndex)
return node
def createIdIndexDictionary(self):
d = self.sourceModel().createIdIndexDictionary()
for id, sourceIndex in d.iteritems():
proxyIndex = self.mapFromSource(sourceIndex)
d[id] = Qt.QPersistentModelIndex(proxyIndex)
return d
def filterAcceptsRow(self, row, parentIndex):
child = self.sourceModel().index(row, 0, parentIndex)
node = self.sourceModel().nodeFromIndex(child)
return isinstance(node, macro.MacroNode)
class MacroParametersProxyModel(Qt.QSortFilterProxyModel):
def __init__(self, parent=None):
Qt.QSortFilterProxyModel.__init__(self, parent)
self.columns = 2
self.headers = ["Parameter", "Value", "", "", "", ""]
self._macroIndex = None
def __getattr__(self, name):
return getattr(self.sourceModel(), name)
def headerData(self, section, orientation, role):
if orientation == Qt.Qt.Horizontal and role == Qt.Qt.DisplayRole:
return Qt.QVariant(self.headers[section])
return Qt.QVariant()
def nodeFromIndex(self, index):
sourceIndex = self.mapToSource(index)
node = self.sourceModel().nodeFromIndex(sourceIndex)
return node
def setMacroIndex(self, macroIndex):
self._macroIndex = macroIndex
def macroIndex(self):
return self._macroIndex
def columnCount(self, parent):
return self.columns
def filterAcceptsRow(self, row, parentIndex):
if self.macroIndex() == None:
return False
if self.macroIndex() == parentIndex:
child = self.sourceModel().index(row, 0, parentIndex)
node = self.sourceModel().nodeFromIndex(child)
if not isinstance(node, macro.ParamNode):
return False
return True
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