class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.model = Project()
self.view = QTreeView(self)
self.view.setModel(self.model)
self.view.setDragEnabled(True)
self.view.setDragDropMode(QAbstractItemView.InternalMove)
self.setCentralWidget(self.view)
def mousePressEvent(self, e):
print e.x(), e.y()
return QMainWindow.mousePressEvent(self, e)
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.model = Project()
self.view = QTreeView(self)
self.view.setModel(self.model)
self.view.setDragEnabled(True)
self.view.setDragDropMode(QAbstractItemView.InternalMove)
self.setCentralWidget(self.view)
def mousePressEvent(self, e):
print e.x(), e.y()
return QMainWindow.mousePressEvent(self, e)
class FilterTab(QWidget):
"""This class is the GUI for creating filters for the FilterBox
module. This GUI will be added as a tab to the ModuleFrame
tab dialog.
"""
applySignal = Signal(Clause)
def __init__(self, parent, mframe, existing_filters):
"""Create a FilterTab with the given parent TabDialog, logical
parent ModuleFrame mframe, and existing_filters list of Clause
objects.
"""
super(FilterTab, self).__init__(parent)
self.mframe = mframe
self.parent = parent
self.attributes = self.mframe.agent.datatree.generateAttributeList()
self.clause_list = list()
self.clause_dict = dict()
# Right now we only look at the first passed in filter.
# TODO: At GUI to switch between existing filters
if existing_filters is not None and len(existing_filters) > 0:
for clause in existing_filters[0].conditions.clauses:
self.clause_list.append(str(clause))
self.clause_dict[str(clause)] = clause
self.clause_model = QStringListModel(self.clause_list)
layout = QVBoxLayout(self)
self.sidesplitter = QSplitter(Qt.Horizontal)
# You can only select one attribute at a time to build the
# filter clauses
self.data_view = QTreeView(self)
self.data_view.setModel(self.mframe.agent.datatree)
self.data_view.setDragEnabled(True)
self.data_view.setDropIndicatorShown(True)
self.data_view.expandAll()
self.sidesplitter.addWidget(self.data_view)
self.sidesplitter.setStretchFactor(1,1)
self.filter_widget = self.buildFilterWidget()
self.sidesplitter.addWidget(self.filter_widget)
self.sidesplitter.setStretchFactor(1,0)
layout.addWidget(self.sidesplitter)
# Apply buttons
buttonWidget = QWidget()
buttonLayout = QHBoxLayout(buttonWidget)
self.applyButton = QPushButton("Apply")
self.applyButton.clicked.connect(self.applyFilter)
self.closeButton = QPushButton("Apply & Close")
self.closeButton.clicked.connect(self.applyCloseFilter)
buttonLayout.addWidget(self.applyButton)
buttonLayout.addWidget(self.closeButton)
buttonWidget.setLayout(buttonLayout)
layout.addWidget(buttonWidget)
self.setLayout(layout)
def applyFilter(self):
"""Emits the applySignal with the Clause object currently
represented by this FilterTab.
"""
num_clauses = len(self.clause_list)
if num_clauses == 0:
self.applySignal.emit(None)
else:
self.applySignal.emit(Clause("and", *self.clause_dict.values()))
def applyCloseFilter(self):
"""Calls applyFilter and then closes the containing TabDialog."""
self.applyFilter()
self.parent.close()
def buildFilterWidget(self):
"""Creates the filter portion of the widget by laying out
the subwidgets for relations, workspace and existing
clauses.
"""
filter_widget = QWidget()
filter_layout = QVBoxLayout(filter_widget)
filter_layout.addWidget(self.buildRelationsWidget())
filter_layout.addItem(QSpacerItem(5,5))
filter_layout.addWidget(self.buildWorkFrame())
filter_layout.addItem(QSpacerItem(5,5))
filter_layout.addWidget(self.buildFilterListView())
filter_widget.setLayout(filter_layout)
return filter_widget
def buildFilterListView(self):
"""Creates the QListView that contains all of the basic Clause
objects.
"""
groupBox = QGroupBox("Clauses")
layout = QVBoxLayout(groupBox)
self.list_view = QListView(groupBox)
self.list_view.setModel(self.clause_model)
layout.addWidget(self.list_view)
layout.addItem(QSpacerItem(5,5))
self.delButton = QPushButton("Remove Selected Clause")
self.delButton.clicked.connect(self.deleteClause)
layout.addWidget(self.delButton)
groupBox.setLayout(layout)
return groupBox
def buildWorkFrame(self):
"""Creates the grouped set of widgets that allow users to build
basic Clause objects.
"""
groupBox = QGroupBox("Clause Workspace")
layout = QHBoxLayout(groupBox)
attributeCompleter = QCompleter(self.attributes)
attributeCompleter.setCompletionMode(QCompleter.InlineCompletion)
self.dropAttribute = DropLineEdit(self, self.mframe.agent.datatree, "",
attributeCompleter)
self.dropRelation = DropTextLabel("__")
self.dropValue = FilterValueLineEdit(groupBox,
self.mframe.agent.datatree, self.dropAttribute)
# Clear dropValue when dropAttribute changes
self.dropAttribute.textChanged.connect(self.dropValue.clear)
# Enter in dropValue works like addButton
self.dropValue.returnPressed.connect(self.addClause)
self.addButton = QPushButton("Add", groupBox)
self.addButton.clicked.connect(self.addClause)
layout.addWidget(self.dropAttribute)
layout.addItem(QSpacerItem(5,5))
layout.addWidget(self.dropRelation)
layout.addItem(QSpacerItem(5,5))
layout.addWidget(self.dropValue)
layout.addItem(QSpacerItem(5,5))
layout.addWidget(self.addButton)
groupBox.setLayout(layout)
return groupBox
def buildRelationsWidget(self):
"""Creates the set of draggable relations. These relations are
whatever is available in the relations dict of Table.
"""
relations_widget = QWidget()
layout = QHBoxLayout(relations_widget)
for relation in Table.relations:
layout.addWidget(DragTextLabel(relation))
relations_widget.setLayout(layout)
return relations_widget
def addClause(self):
"""Adds a basic Clause to the current filter."""
if self.dropRelation.text() in Table.relations \
and len(self.dropValue.text()) > 0 \
and len(self.dropAttribute.text()) > 0:
clause = Clause(self.dropRelation.text(),
TableAttribute(self.dropAttribute.text()),
self.dropValue.text())
# Guard double add
if str(clause) not in self.clause_dict:
self.clause_list.append(str(clause))
self.clause_dict[str(clause)] = clause
self.clause_model.setStringList(self.clause_list)
def deleteClause(self):
"""Removes the selected basic Clause objects from the current
filter.
"""
clause = self.clause_model.data(
self.list_view.selectedIndexes()[0], Qt.DisplayRole)
if clause is not None and clause in self.clause_list:
self.clause_list.remove(clause)
del self.clause_dict[clause]
self.clause_model.setStringList(self.clause_list)
