def __init__(self, parent=None):
"""
Initialize the form dialog.
:type parent: QtWidgets.QWidget
"""
super().__init__(parent)
#############################################
# FORM AREA
#################################
self.minLabel = QtWidgets.QLabel(self)
self.minLabel.setFont(Font('Roboto', 12))
self.minLabel.setText('Min. cardinality')
self.minField = IntegerField(self)
self.minField.setFont(Font('Roboto', 12))
self.minField.setFixedWidth(80)
self.maxLabel = QtWidgets.QLabel(self)
self.maxLabel.setFont(Font('Roboto', 12))
self.maxLabel.setText('Max. cardinality')
self.maxField = IntegerField(self)
self.maxField.setFont(Font('Roboto', 12))
self.maxField.setFixedWidth(80)
self.formWidget = QtWidgets.QWidget(self)
self.formLayout = QtWidgets.QFormLayout(self.formWidget)
self.formLayout.addRow(self.minLabel, self.minField)
self.formLayout.addRow(self.maxLabel, self.maxField)
#############################################
# CONFIRMATION AREA
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(
QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
self.confirmationBox.setFont(Font('Roboto', 12))
#############################################
# SETUP DIALOG LAYOUT
#################################
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.formWidget)
self.mainLayout.addWidget(self.confirmationBox, 0,
QtCore.Qt.AlignRight)
self.setFixedSize(self.sizeHint())
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
self.setWindowTitle('Insert cardinality')
connect(self.confirmationBox.accepted, self.accept)
connect(self.confirmationBox.rejected, self.reject)
def __init__(self, parent=None):
"""
Initialize the form dialog.
:type parent: QtWidgets.QWidget
"""
super().__init__(parent)
#############################################
# FORM AREA
#################################
self.minLabel = QtWidgets.QLabel(self)
self.minLabel.setFont(Font('Roboto', 12))
self.minLabel.setText('Min. cardinality')
self.minField = IntegerField(self)
self.minField.setFont(Font('Roboto', 12))
self.minField.setFixedWidth(80)
self.maxLabel = QtWidgets.QLabel(self)
self.maxLabel.setFont(Font('Roboto', 12))
self.maxLabel.setText('Max. cardinality')
self.maxField = IntegerField(self)
self.maxField.setFont(Font('Roboto', 12))
self.maxField.setFixedWidth(80)
self.formWidget = QtWidgets.QWidget(self)
self.formLayout = QtWidgets.QFormLayout(self.formWidget)
self.formLayout.addRow(self.minLabel, self.minField)
self.formLayout.addRow(self.maxLabel, self.maxField)
#############################################
# CONFIRMATION AREA
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
self.confirmationBox.setFont(Font('Roboto', 12))
#############################################
# SETUP DIALOG LAYOUT
#################################
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.formWidget)
self.mainLayout.addWidget(self.confirmationBox, 0, QtCore.Qt.AlignRight)
self.setFixedSize(self.sizeHint())
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
self.setWindowTitle('Insert cardinality')
connect(self.confirmationBox.accepted, self.accept)
connect(self.confirmationBox.rejected, self.reject)
class CardinalityRestrictionForm(QtWidgets.QDialog):
"""
This class implements the form used to input domain/range restriction cardinalities.
"""
def __init__(self, parent=None):
"""
Initialize the form dialog.
:type parent: QtWidgets.QWidget
"""
super().__init__(parent)
#############################################
# FORM AREA
#################################
self.minLabel = QtWidgets.QLabel(self)
self.minLabel.setText('Min. cardinality')
self.minField = IntegerField(self)
self.minField.setFixedWidth(80)
self.maxLabel = QtWidgets.QLabel(self)
self.maxLabel.setText('Max. cardinality')
self.maxField = IntegerField(self)
self.maxField.setFixedWidth(80)
self.formWidget = QtWidgets.QWidget(self)
self.formLayout = QtWidgets.QFormLayout(self.formWidget)
self.formLayout.addRow(self.minLabel, self.minField)
self.formLayout.addRow(self.maxLabel, self.maxField)
#############################################
# CONFIRMATION AREA
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(
QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
#############################################
# SETUP DIALOG LAYOUT
#################################
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.formWidget)
self.mainLayout.addWidget(self.confirmationBox, 0,
QtCore.Qt.AlignRight)
self.setFixedSize(self.sizeHint())
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
self.setWindowTitle('Insert cardinality')
connect(self.confirmationBox.accepted, self.accept)
connect(self.confirmationBox.rejected, self.reject)
#############################################
# SLOTS
#################################
@QtCore.pyqtSlot()
def accept(self):
"""
Validate the form and trigger accept() if the form is valid.
"""
v1 = self.min()
v2 = self.max()
try:
if v1 is not None and v1 < 0 or v2 is not None and v2 < 0:
raise ValueError('Please enter only <b>positive</b> integers!')
if v1 is not None and v2 is not None and v1 > v2:
raise ValueError(
'Min. cardinality <b>{0}</b> must be <= than Max. cardinality <b>{1}</b>'
.format(v1, v2))
except ValueError as e:
msgbox = QtWidgets.QMessageBox(self)
msgbox.setIconPixmap(
QtGui.QIcon(':/icons/48/ic_warning_black').pixmap(48))
msgbox.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
msgbox.setWindowTitle('Invalid range specified')
msgbox.setText(str(e))
msgbox.setTextFormat(QtCore.Qt.RichText)
msgbox.setStandardButtons(QtWidgets.QMessageBox.Ok)
msgbox.exec_()
else:
super().accept()
#############################################
# INTERFACE
#################################
def max(self):
"""
Returns the maximum cardinality value.
:rtype: int
"""
try:
return int(self.maxField.text())
except ValueError:
return None
def min(self):
"""
Returns the minimum cardinality value.
:rtype: int
"""
try:
return int(self.minField.text())
except ValueError:
return None
def __init__(self, diagram, session):
"""
Initialize the diagram properties dialog.
:type diagram: Diagram
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
#############################################
# GENERAL TAB
#################################
self.nodesLabel = QtWidgets.QLabel(self)
self.nodesLabel.setText('N° nodes')
self.nodesField = IntegerField(self)
self.nodesField.setFixedWidth(300)
self.nodesField.setReadOnly(True)
self.nodesField.setValue(len(self.diagram.nodes()))
self.edgesLabel = QtWidgets.QLabel(self)
self.edgesLabel.setText('N° edges')
self.edgesField = IntegerField(self)
self.edgesField.setFixedWidth(300)
self.edgesField.setReadOnly(True)
self.edgesField.setValue(len(self.diagram.edges()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.nodesLabel, self.nodesField)
self.generalLayout.addRow(self.edgesLabel, self.edgesField)
#############################################
# GEOMETRY TAB
#################################
sceneRect = self.diagram.sceneRect()
self.diagramSizeLabel = QtWidgets.QLabel(self)
self.diagramSizeLabel.setText('Size')
self.diagramSizeField = SpinBox(self)
self.diagramSizeField.setRange(Diagram.MinSize, Diagram.MaxSize)
self.diagramSizeField.setSingleStep(100)
self.diagramSizeField.setValue(
max(sceneRect.width(), sceneRect.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.diagramSizeLabel,
self.diagramSizeField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(
QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget, 'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0,
QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.diagram.name))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
class DiagramProperty(PropertyDialog):
"""
This class implements the diagram properties dialog.
"""
def __init__(self, diagram, session):
"""
Initialize the diagram properties dialog.
:type diagram: Diagram
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
#############################################
# GENERAL TAB
#################################
self.nodesLabel = QtWidgets.QLabel(self)
self.nodesLabel.setText('N° nodes')
self.nodesField = IntegerField(self)
self.nodesField.setFixedWidth(300)
self.nodesField.setReadOnly(True)
self.nodesField.setValue(len(self.diagram.nodes()))
self.edgesLabel = QtWidgets.QLabel(self)
self.edgesLabel.setText('N° edges')
self.edgesField = IntegerField(self)
self.edgesField.setFixedWidth(300)
self.edgesField.setReadOnly(True)
self.edgesField.setValue(len(self.diagram.edges()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.nodesLabel, self.nodesField)
self.generalLayout.addRow(self.edgesLabel, self.edgesField)
#############################################
# GEOMETRY TAB
#################################
sceneRect = self.diagram.sceneRect()
self.diagramSizeLabel = QtWidgets.QLabel(self)
self.diagramSizeLabel.setText('Size')
self.diagramSizeField = SpinBox(self)
self.diagramSizeField.setRange(Diagram.MinSize, Diagram.MaxSize)
self.diagramSizeField.setSingleStep(100)
self.diagramSizeField.setValue(
max(sceneRect.width(), sceneRect.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.diagramSizeLabel,
self.diagramSizeField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(
QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget, 'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0,
QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.diagram.name))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
#############################################
# SLOTS
#################################
@QtCore.pyqtSlot()
def complete(self):
"""
Executed when the dialog is accepted.
"""
commands = [self.diagramSizeChanged()]
if any(commands):
self.session.undostack.beginMacro('edit {0} properties'.format(
self.diagram.name))
for command in commands:
if command:
self.session.undostack.push(command)
self.session.undostack.endMacro()
super().accept()
#############################################
# AUXILIARY METHODS
#################################
def diagramSizeChanged(self):
"""
Change the size of the diagram.
:rtype: QUndoCommand
"""
sceneRect = self.diagram.sceneRect()
size1 = max(sceneRect.width(), sceneRect.height())
size2 = self.diagramSizeField.value()
if size1 != size2:
items = self.diagram.items()
if items:
x = set()
y = set()
for item in items:
if item.isEdge() or item.isNode():
b = item.mapRectToScene(item.boundingRect())
x.update({b.left(), b.right()})
y.update({b.top(), b.bottom()})
size2 = max(size2, abs(min(x) * 2), abs(max(x) * 2),
abs(min(y) * 2), abs(max(y) * 2))
return CommandDiagramResize(
self.diagram,
QtCore.QRectF(-size2 / 2, -size2 / 2, size2, size2))
return None
def __init__(self, diagram, node, session):
"""
Initialize the node properties dialog.
:type diagram: Diagram
:type node: AbstractNode
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
self.node = node
#############################################
# GENERAL TAB
#################################
self.idLabel = QtWidgets.QLabel(self)
self.idLabel.setText('ID')
self.idField = StringField(self)
self.idField.setFixedWidth(300)
self.idField.setFocusPolicy(QtCore.Qt.NoFocus)
self.idField.setReadOnly(True)
self.idField.setValue(self.node.id)
self.typeLabel = QtWidgets.QLabel(self)
self.typeLabel.setText('Type')
self.typeField = StringField(self)
self.typeField.setFocusPolicy(QtCore.Qt.NoFocus)
self.typeField.setFixedWidth(300)
self.typeField.setReadOnly(True)
self.typeField.setValue(node.shortName.capitalize())
self.identityLabel = QtWidgets.QLabel(self)
self.identityLabel.setText('Identity')
self.identityField = StringField(self)
self.identityField.setFocusPolicy(QtCore.Qt.NoFocus)
self.identityField.setFixedWidth(300)
self.identityField.setReadOnly(True)
self.identityField.setValue(self.node.identityName)
self.neighboursLabel = QtWidgets.QLabel(self)
self.neighboursLabel.setText('Neighbours')
self.neighboursField = IntegerField(self)
self.neighboursField.setFocusPolicy(QtCore.Qt.NoFocus)
self.neighboursField.setFixedWidth(300)
self.neighboursField.setReadOnly(True)
self.neighboursField.setValue(len(self.node.adjacentNodes()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.idLabel, self.idField)
self.generalLayout.addRow(self.typeLabel, self.typeField)
self.generalLayout.addRow(self.identityLabel, self.identityField)
self.generalLayout.addRow(self.neighboursLabel, self.neighboursField)
#############################################
# GEOMETRY TAB
#################################
nodePos = self.node.pos()
sceneRect = self.diagram.sceneRect()
self.xLabel = QtWidgets.QLabel(self)
self.xLabel.setText('X')
self.xField = SpinBox(self)
self.xField.setFixedWidth(60)
self.xField.setRange(sceneRect.left(), sceneRect.right())
self.xField.setValue(int(nodePos.x()))
self.yLabel = QtWidgets.QLabel(self)
self.yLabel.setText('Y')
self.yField = SpinBox(self)
self.yField.setFixedWidth(60)
self.yField.setRange(sceneRect.top(), sceneRect.bottom())
self.yField.setValue(int(nodePos.y()))
self.widthLabel = QtWidgets.QLabel(self)
self.widthLabel.setText('Width')
self.widthField = SpinBox(self)
self.widthField.setFixedWidth(60)
self.widthField.setRange(20, sceneRect.width())
self.widthField.setReadOnly(True)
self.widthField.setValue(int(self.node.width()))
self.heightLabel = QtWidgets.QLabel(self)
self.heightLabel.setText('Height')
self.heightField = SpinBox(self)
self.heightField.setFixedWidth(60)
self.heightField.setRange(20, sceneRect.height())
self.heightField.setReadOnly(True)
self.heightField.setValue(int(self.node.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.xLabel, self.xField)
self.geometryLayout.addRow(self.yLabel, self.yField)
self.geometryLayout.addRow(self.widthLabel, self.widthField)
self.geometryLayout.addRow(self.heightLabel, self.heightField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(
QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget, 'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0,
QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.node))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
class NodeProperty(PropertyDialog):
"""
This class implements the 'Node property' dialog.
"""
def __init__(self, diagram, node, session):
"""
Initialize the node properties dialog.
:type diagram: Diagram
:type node: AbstractNode
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
self.node = node
#############################################
# GENERAL TAB
#################################
self.idLabel = QtWidgets.QLabel(self)
self.idLabel.setText('ID')
self.idField = StringField(self)
self.idField.setFixedWidth(300)
self.idField.setFocusPolicy(QtCore.Qt.NoFocus)
self.idField.setReadOnly(True)
self.idField.setValue(self.node.id)
self.typeLabel = QtWidgets.QLabel(self)
self.typeLabel.setText('Type')
self.typeField = StringField(self)
self.typeField.setFocusPolicy(QtCore.Qt.NoFocus)
self.typeField.setFixedWidth(300)
self.typeField.setReadOnly(True)
self.typeField.setValue(node.shortName.capitalize())
self.identityLabel = QtWidgets.QLabel(self)
self.identityLabel.setText('Identity')
self.identityField = StringField(self)
self.identityField.setFocusPolicy(QtCore.Qt.NoFocus)
self.identityField.setFixedWidth(300)
self.identityField.setReadOnly(True)
self.identityField.setValue(self.node.identityName)
self.neighboursLabel = QtWidgets.QLabel(self)
self.neighboursLabel.setText('Neighbours')
self.neighboursField = IntegerField(self)
self.neighboursField.setFocusPolicy(QtCore.Qt.NoFocus)
self.neighboursField.setFixedWidth(300)
self.neighboursField.setReadOnly(True)
self.neighboursField.setValue(len(self.node.adjacentNodes()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.idLabel, self.idField)
self.generalLayout.addRow(self.typeLabel, self.typeField)
self.generalLayout.addRow(self.identityLabel, self.identityField)
self.generalLayout.addRow(self.neighboursLabel, self.neighboursField)
#############################################
# GEOMETRY TAB
#################################
nodePos = self.node.pos()
sceneRect = self.diagram.sceneRect()
self.xLabel = QtWidgets.QLabel(self)
self.xLabel.setText('X')
self.xField = SpinBox(self)
self.xField.setFixedWidth(60)
self.xField.setRange(sceneRect.left(), sceneRect.right())
self.xField.setValue(int(nodePos.x()))
self.yLabel = QtWidgets.QLabel(self)
self.yLabel.setText('Y')
self.yField = SpinBox(self)
self.yField.setFixedWidth(60)
self.yField.setRange(sceneRect.top(), sceneRect.bottom())
self.yField.setValue(int(nodePos.y()))
self.widthLabel = QtWidgets.QLabel(self)
self.widthLabel.setText('Width')
self.widthField = SpinBox(self)
self.widthField.setFixedWidth(60)
self.widthField.setRange(20, sceneRect.width())
self.widthField.setReadOnly(True)
self.widthField.setValue(int(self.node.width()))
self.heightLabel = QtWidgets.QLabel(self)
self.heightLabel.setText('Height')
self.heightField = SpinBox(self)
self.heightField.setFixedWidth(60)
self.heightField.setRange(20, sceneRect.height())
self.heightField.setReadOnly(True)
self.heightField.setValue(int(self.node.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.xLabel, self.xField)
self.geometryLayout.addRow(self.yLabel, self.yField)
self.geometryLayout.addRow(self.widthLabel, self.widthField)
self.geometryLayout.addRow(self.heightLabel, self.heightField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(
QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget, 'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0,
QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.node))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
#############################################
# SLOTS
#################################
@QtCore.pyqtSlot()
def complete(self):
"""
Executed when the dialog is accepted.
"""
commands = [self.positionChanged()]
if any(commands):
self.session.undostack.beginMacro('edit {0} properties'.format(
self.node.name))
for command in commands:
if command:
self.session.undostack.push(command)
self.session.undostack.endMacro()
super().accept()
#############################################
# AUXILIARY METHODS
#################################
def positionChanged(self):
"""
Move the node properly if the position has been changed.
:rtype: QUndoCommand
"""
rect = self.diagram.sceneRect()
xPos = clamp(self.xField.value(), rect.left(), rect.right())
yPos = clamp(self.yField.value(), rect.top(), rect.bottom())
pos1 = self.node.pos()
pos2 = QtCore.QPointF(xPos, yPos)
if pos1 != pos2:
initData = self.diagram.setupMove([self.node])
moveData = self.diagram.completeMove(initData, pos2 - pos1)
return CommandNodeMove(self.diagram, initData, moveData)
return None
class CardinalityRestrictionForm(QtWidgets.QDialog):
"""
This class implements the form used to input domain/range restriction cardinalities.
"""
def __init__(self, parent=None):
"""
Initialize the form dialog.
:type parent: QtWidgets.QWidget
"""
super().__init__(parent)
#############################################
# FORM AREA
#################################
self.minLabel = QtWidgets.QLabel(self)
self.minLabel.setFont(Font('Roboto', 12))
self.minLabel.setText('Min. cardinality')
self.minField = IntegerField(self)
self.minField.setFont(Font('Roboto', 12))
self.minField.setFixedWidth(80)
self.maxLabel = QtWidgets.QLabel(self)
self.maxLabel.setFont(Font('Roboto', 12))
self.maxLabel.setText('Max. cardinality')
self.maxField = IntegerField(self)
self.maxField.setFont(Font('Roboto', 12))
self.maxField.setFixedWidth(80)
self.formWidget = QtWidgets.QWidget(self)
self.formLayout = QtWidgets.QFormLayout(self.formWidget)
self.formLayout.addRow(self.minLabel, self.minField)
self.formLayout.addRow(self.maxLabel, self.maxField)
#############################################
# CONFIRMATION AREA
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
self.confirmationBox.setFont(Font('Roboto', 12))
#############################################
# SETUP DIALOG LAYOUT
#################################
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.formWidget)
self.mainLayout.addWidget(self.confirmationBox, 0, QtCore.Qt.AlignRight)
self.setFixedSize(self.sizeHint())
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
self.setWindowTitle('Insert cardinality')
connect(self.confirmationBox.accepted, self.accept)
connect(self.confirmationBox.rejected, self.reject)
#############################################
# SLOTS
#################################
@QtCore.pyqtSlot()
def accept(self):
"""
Validate the form and trigger accept() if the form is valid.
"""
v1 = self.min()
v2 = self.max()
try:
if v1 is not None and v1 < 0 or v2 is not None and v2 < 0:
raise ValueError('Please enter only <b>positive</b> integers!')
if v1 is not None and v2 is not None and v1 > v2:
raise ValueError('Min. cardinality <b>{0}</b> must be <= than Max. cardinality <b>{1}</b>'.format(v1, v2))
except ValueError as e:
msgbox = QtWidgets.QMessageBox(self)
msgbox.setIconPixmap(QtGui.QIcon(':/icons/48/ic_warning_black').pixmap(48))
msgbox.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
msgbox.setWindowTitle('Invalid range specified')
msgbox.setText(str(e))
msgbox.setTextFormat(QtCore.Qt.RichText)
msgbox.setStandardButtons(QtWidgets.QMessageBox.Ok)
msgbox.exec_()
else:
super().accept()
#############################################
# INTERFACE
#################################
def max(self):
"""
Returns the maximum cardinality value.
:rtype: int
"""
try:
return int(self.maxField.text())
except ValueError:
return None
def min(self):
"""
Returns the minimum cardinality value.
:rtype: int
"""
try:
return int(self.minField.text())
except ValueError:
return None
def __init__(self, diagram, session):
"""
Initialize the diagram properties dialog.
:type diagram: Diagram
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
#############################################
# GENERAL TAB
#################################
self.nodesLabel = QtWidgets.QLabel(self)
self.nodesLabel.setFont(Font('Roboto', 12))
self.nodesLabel.setText('N° nodes')
self.nodesField = IntegerField(self)
self.nodesField.setFixedWidth(300)
self.nodesField.setFont(Font('Roboto', 12))
self.nodesField.setReadOnly(True)
self.nodesField.setValue(len(self.diagram.nodes()))
self.edgesLabel = QtWidgets.QLabel(self)
self.edgesLabel.setFont(Font('Roboto', 12))
self.edgesLabel.setText('N° edges')
self.edgesField = IntegerField(self)
self.edgesField.setFixedWidth(300)
self.edgesField.setFont(Font('Roboto', 12))
self.edgesField.setReadOnly(True)
self.edgesField.setValue(len(self.diagram.edges()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.nodesLabel, self.nodesField)
self.generalLayout.addRow(self.edgesLabel, self.edgesField)
#############################################
# GEOMETRY TAB
#################################
sceneRect = self.diagram.sceneRect()
self.diagramSizeLabel = QtWidgets.QLabel(self)
self.diagramSizeLabel.setFont(Font('Roboto', 12))
self.diagramSizeLabel.setText('Size')
self.diagramSizeField = SpinBox(self)
self.diagramSizeField.setFont(Font('Roboto', 12))
self.diagramSizeField.setRange(Diagram.MinSize, Diagram.MaxSize)
self.diagramSizeField.setSingleStep(100)
self.diagramSizeField.setValue(max(sceneRect.width(), sceneRect.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.diagramSizeLabel, self.diagramSizeField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
self.confirmationBox.setFont(Font('Roboto', 12))
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget,'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0, QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.diagram.name))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
class DiagramProperty(PropertyDialog):
"""
This class implements the diagram properties dialog.
"""
def __init__(self, diagram, session):
"""
Initialize the diagram properties dialog.
:type diagram: Diagram
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
#############################################
# GENERAL TAB
#################################
self.nodesLabel = QtWidgets.QLabel(self)
self.nodesLabel.setFont(Font('Roboto', 12))
self.nodesLabel.setText('N° nodes')
self.nodesField = IntegerField(self)
self.nodesField.setFixedWidth(300)
self.nodesField.setFont(Font('Roboto', 12))
self.nodesField.setReadOnly(True)
self.nodesField.setValue(len(self.diagram.nodes()))
self.edgesLabel = QtWidgets.QLabel(self)
self.edgesLabel.setFont(Font('Roboto', 12))
self.edgesLabel.setText('N° edges')
self.edgesField = IntegerField(self)
self.edgesField.setFixedWidth(300)
self.edgesField.setFont(Font('Roboto', 12))
self.edgesField.setReadOnly(True)
self.edgesField.setValue(len(self.diagram.edges()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.nodesLabel, self.nodesField)
self.generalLayout.addRow(self.edgesLabel, self.edgesField)
#############################################
# GEOMETRY TAB
#################################
sceneRect = self.diagram.sceneRect()
self.diagramSizeLabel = QtWidgets.QLabel(self)
self.diagramSizeLabel.setFont(Font('Roboto', 12))
self.diagramSizeLabel.setText('Size')
self.diagramSizeField = SpinBox(self)
self.diagramSizeField.setFont(Font('Roboto', 12))
self.diagramSizeField.setRange(Diagram.MinSize, Diagram.MaxSize)
self.diagramSizeField.setSingleStep(100)
self.diagramSizeField.setValue(max(sceneRect.width(), sceneRect.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.diagramSizeLabel, self.diagramSizeField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
self.confirmationBox.setFont(Font('Roboto', 12))
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget,'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0, QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.diagram.name))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
#############################################
# SLOTS
#################################
@QtCore.pyqtSlot()
def complete(self):
"""
Executed when the dialog is accepted.
"""
commands = [self.diagramSizeChanged()]
if any(commands):
self.session.undostack.beginMacro('edit {0} properties'.format(self.diagram.name))
for command in commands:
if command:
self.session.undostack.push(command)
self.session.undostack.endMacro()
super().accept()
#############################################
# AUXILIARY METHODS
#################################
def diagramSizeChanged(self):
"""
Change the size of the diagram.
:rtype: QUndoCommand
"""
sceneRect = self.diagram.sceneRect()
size1 = max(sceneRect.width(), sceneRect.height())
size2 = self.diagramSizeField.value()
if size1 != size2:
items = self.diagram.items()
if items:
x = set()
y = set()
for item in items:
if item.isEdge() or item.isNode():
b = item.mapRectToScene(item.boundingRect())
x.update({b.left(), b.right()})
y.update({b.top(), b.bottom()})
size2 = max(size2, abs(min(x) * 2), abs(max(x) * 2), abs(min(y) * 2), abs(max(y) * 2))
return CommandDiagramResize(self.diagram, QtCore.QRectF(-size2 / 2, -size2 / 2, size2, size2))
return None
def __init__(self, diagram, node, session):
"""
Initialize the node properties dialog.
:type diagram: Diagram
:type node: AbstractNode
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
self.node = node
#############################################
# GENERAL TAB
#################################
self.idLabel = QtWidgets.QLabel(self)
self.idLabel.setFont(Font('Roboto', 12))
self.idLabel.setText('ID')
self.idField = StringField(self)
self.idField.setFont(Font('Roboto', 12))
self.idField.setFixedWidth(300)
self.idField.setFocusPolicy(QtCore.Qt.NoFocus)
self.idField.setReadOnly(True)
self.idField.setValue(self.node.id)
self.typeLabel = QtWidgets.QLabel(self)
self.typeLabel.setFont(Font('Roboto', 12))
self.typeLabel.setText('Type')
self.typeField = StringField(self)
self.typeField.setFont(Font('Roboto', 12))
self.typeField.setFocusPolicy(QtCore.Qt.NoFocus)
self.typeField.setFixedWidth(300)
self.typeField.setReadOnly(True)
self.typeField.setValue(node.shortName.capitalize())
self.identityLabel = QtWidgets.QLabel(self)
self.identityLabel.setFont(Font('Roboto', 12))
self.identityLabel.setText('Identity')
self.identityField = StringField(self)
self.identityField.setFont(Font('Roboto', 12))
self.identityField.setFocusPolicy(QtCore.Qt.NoFocus)
self.identityField.setFixedWidth(300)
self.identityField.setReadOnly(True)
self.identityField.setValue(self.node.identityName)
self.neighboursLabel = QtWidgets.QLabel(self)
self.neighboursLabel.setFont(Font('Roboto', 12))
self.neighboursLabel.setText('Neighbours')
self.neighboursField = IntegerField(self)
self.neighboursField.setFont(Font('Roboto', 12))
self.neighboursField.setFocusPolicy(QtCore.Qt.NoFocus)
self.neighboursField.setFixedWidth(300)
self.neighboursField.setReadOnly(True)
self.neighboursField.setValue(len(self.node.adjacentNodes()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.idLabel, self.idField)
self.generalLayout.addRow(self.typeLabel, self.typeField)
self.generalLayout.addRow(self.identityLabel, self.identityField)
self.generalLayout.addRow(self.neighboursLabel, self.neighboursField)
#############################################
# GEOMETRY TAB
#################################
nodePos = self.node.pos()
sceneRect = self.diagram.sceneRect()
self.xLabel = QtWidgets.QLabel(self)
self.xLabel.setFont(Font('Roboto', 12))
self.xLabel.setText('X')
self.xField = SpinBox(self)
self.xField.setFixedWidth(60)
self.xField.setFont(Font('Roboto', 12))
self.xField.setRange(sceneRect.left(), sceneRect.right())
self.xField.setValue(int(nodePos.x()))
self.yLabel = QtWidgets.QLabel(self)
self.yLabel.setFont(Font('Roboto', 12))
self.yLabel.setText('Y')
self.yField = SpinBox(self)
self.yField.setFixedWidth(60)
self.yField.setFont(Font('Roboto', 12))
self.yField.setRange(sceneRect.top(), sceneRect.bottom())
self.yField.setValue(int(nodePos.y()))
self.widthLabel = QtWidgets.QLabel(self)
self.widthLabel.setFont(Font('Roboto', 12))
self.widthLabel.setText('Width')
self.widthField = SpinBox(self)
self.widthField.setFixedWidth(60)
self.widthField.setFont(Font('Roboto', 12))
self.widthField.setRange(20, sceneRect.width())
self.widthField.setReadOnly(True)
self.widthField.setValue(int(self.node.width()))
self.heightLabel = QtWidgets.QLabel(self)
self.heightLabel.setFont(Font('Roboto', 12))
self.heightLabel.setText('Height')
self.heightField = SpinBox(self)
self.heightField.setFixedWidth(60)
self.heightField.setFont(Font('Roboto', 12))
self.heightField.setRange(20, sceneRect.height())
self.heightField.setReadOnly(True)
self.heightField.setValue(int(self.node.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.xLabel, self.xField)
self.geometryLayout.addRow(self.yLabel, self.yField)
self.geometryLayout.addRow(self.widthLabel, self.widthField)
self.geometryLayout.addRow(self.heightLabel, self.heightField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
self.confirmationBox.setFont(Font('Roboto', 12))
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget, 'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0, QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.node))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
class NodeProperty(PropertyDialog):
"""
This class implements the 'Node property' dialog.
"""
def __init__(self, diagram, node, session):
"""
Initialize the node properties dialog.
:type diagram: Diagram
:type node: AbstractNode
:type session: Session
"""
super().__init__(session)
self.diagram = diagram
self.node = node
#############################################
# GENERAL TAB
#################################
self.idLabel = QtWidgets.QLabel(self)
self.idLabel.setFont(Font('Roboto', 12))
self.idLabel.setText('ID')
self.idField = StringField(self)
self.idField.setFont(Font('Roboto', 12))
self.idField.setFixedWidth(300)
self.idField.setFocusPolicy(QtCore.Qt.NoFocus)
self.idField.setReadOnly(True)
self.idField.setValue(self.node.id)
self.typeLabel = QtWidgets.QLabel(self)
self.typeLabel.setFont(Font('Roboto', 12))
self.typeLabel.setText('Type')
self.typeField = StringField(self)
self.typeField.setFont(Font('Roboto', 12))
self.typeField.setFocusPolicy(QtCore.Qt.NoFocus)
self.typeField.setFixedWidth(300)
self.typeField.setReadOnly(True)
self.typeField.setValue(node.shortName.capitalize())
self.identityLabel = QtWidgets.QLabel(self)
self.identityLabel.setFont(Font('Roboto', 12))
self.identityLabel.setText('Identity')
self.identityField = StringField(self)
self.identityField.setFont(Font('Roboto', 12))
self.identityField.setFocusPolicy(QtCore.Qt.NoFocus)
self.identityField.setFixedWidth(300)
self.identityField.setReadOnly(True)
self.identityField.setValue(self.node.identityName)
self.neighboursLabel = QtWidgets.QLabel(self)
self.neighboursLabel.setFont(Font('Roboto', 12))
self.neighboursLabel.setText('Neighbours')
self.neighboursField = IntegerField(self)
self.neighboursField.setFont(Font('Roboto', 12))
self.neighboursField.setFocusPolicy(QtCore.Qt.NoFocus)
self.neighboursField.setFixedWidth(300)
self.neighboursField.setReadOnly(True)
self.neighboursField.setValue(len(self.node.adjacentNodes()))
self.generalWidget = QtWidgets.QWidget()
self.generalLayout = QtWidgets.QFormLayout(self.generalWidget)
self.generalLayout.addRow(self.idLabel, self.idField)
self.generalLayout.addRow(self.typeLabel, self.typeField)
self.generalLayout.addRow(self.identityLabel, self.identityField)
self.generalLayout.addRow(self.neighboursLabel, self.neighboursField)
#############################################
# GEOMETRY TAB
#################################
nodePos = self.node.pos()
sceneRect = self.diagram.sceneRect()
self.xLabel = QtWidgets.QLabel(self)
self.xLabel.setFont(Font('Roboto', 12))
self.xLabel.setText('X')
self.xField = SpinBox(self)
self.xField.setFixedWidth(60)
self.xField.setFont(Font('Roboto', 12))
self.xField.setRange(sceneRect.left(), sceneRect.right())
self.xField.setValue(int(nodePos.x()))
self.yLabel = QtWidgets.QLabel(self)
self.yLabel.setFont(Font('Roboto', 12))
self.yLabel.setText('Y')
self.yField = SpinBox(self)
self.yField.setFixedWidth(60)
self.yField.setFont(Font('Roboto', 12))
self.yField.setRange(sceneRect.top(), sceneRect.bottom())
self.yField.setValue(int(nodePos.y()))
self.widthLabel = QtWidgets.QLabel(self)
self.widthLabel.setFont(Font('Roboto', 12))
self.widthLabel.setText('Width')
self.widthField = SpinBox(self)
self.widthField.setFixedWidth(60)
self.widthField.setFont(Font('Roboto', 12))
self.widthField.setRange(20, sceneRect.width())
self.widthField.setReadOnly(True)
self.widthField.setValue(int(self.node.width()))
self.heightLabel = QtWidgets.QLabel(self)
self.heightLabel.setFont(Font('Roboto', 12))
self.heightLabel.setText('Height')
self.heightField = SpinBox(self)
self.heightField.setFixedWidth(60)
self.heightField.setFont(Font('Roboto', 12))
self.heightField.setRange(20, sceneRect.height())
self.heightField.setReadOnly(True)
self.heightField.setValue(int(self.node.height()))
self.geometryWidget = QtWidgets.QWidget()
self.geometryLayout = QtWidgets.QFormLayout(self.geometryWidget)
self.geometryLayout.addRow(self.xLabel, self.xField)
self.geometryLayout.addRow(self.yLabel, self.yField)
self.geometryLayout.addRow(self.widthLabel, self.widthField)
self.geometryLayout.addRow(self.heightLabel, self.heightField)
#############################################
# CONFIRMATION BOX
#################################
self.confirmationBox = QtWidgets.QDialogButtonBox(QtCore.Qt.Horizontal, self)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Ok)
self.confirmationBox.addButton(QtWidgets.QDialogButtonBox.Cancel)
self.confirmationBox.setContentsMargins(10, 0, 10, 10)
self.confirmationBox.setFont(Font('Roboto', 12))
#############################################
# MAIN WIDGET
#################################
self.mainWidget = QtWidgets.QTabWidget(self)
self.mainWidget.addTab(self.generalWidget, 'General')
self.mainWidget.addTab(self.geometryWidget, 'Geometry')
self.mainLayout = QtWidgets.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.addWidget(self.mainWidget)
self.mainLayout.addWidget(self.confirmationBox, 0, QtCore.Qt.AlignRight)
self.setWindowTitle('Properties: {0}'.format(self.node))
self.setWindowIcon(QtGui.QIcon(':/icons/128/ic_eddy'))
connect(self.confirmationBox.accepted, self.complete)
connect(self.confirmationBox.rejected, self.reject)
#############################################
# SLOTS
#################################
@QtCore.pyqtSlot()
def complete(self):
"""
Executed when the dialog is accepted.
"""
commands = [self.positionChanged()]
if any(commands):
self.session.undostack.beginMacro('edit {0} properties'.format(self.node.name))
for command in commands:
if command:
self.session.undostack.push(command)
self.session.undostack.endMacro()
super().accept()
#############################################
# AUXILIARY METHODS
#################################
def positionChanged(self):
"""
Move the node properly if the position has been changed.
:rtype: QUndoCommand
"""
rect = self.diagram.sceneRect()
xPos = clamp(self.xField.value(), rect.left(), rect.right())
yPos = clamp(self.yField.value(), rect.top(), rect.bottom())
pos1 = self.node.pos()
pos2 = QtCore.QPointF(xPos, yPos)
if pos1 != pos2:
node = self.node
data = {
'redo': {
'nodes': {node: {'anchors': {k: v + pos2 - pos1 for k, v in node.anchors.items()}, 'pos': pos2}},
'edges': {},
},
'undo': {
'nodes': {node: {'anchors': {k: v for k, v in node.anchors.items()}, 'pos': pos1}},
'edges': {}
}
}
return CommandNodeMove(self.diagram, data)
return None