class DragDropTableTreeExample(HorizontalLayout):
"""Demonstrate moving data back and forth between a table and a tree using
drag and drop.
The tree and the table use different data structures: The category is a
separate node in the tree and each item just has a String, whereas the
table contains items with both a name and a category. Data conversions
between these representations are made during drop processing.
"""
def __init__(self):
super(DragDropTableTreeExample, self).__init__()
self.setSpacing(True)
# First create the components to be able to refer to them as allowed
# drag sources
self._tree = Tree('Drag from tree to table')
self._table = Table('Drag from table to tree')
self._table.setWidth('100%')
# Populate the tree and set up drag & drop
self.initializeTree(SourceIs(self._table))
# Populate the table and set up drag & drop
self.initializeTable(SourceIs(self._tree))
# Add components
self.addComponent(self._tree)
self.addComponent(self._table)
def initializeTree(self, acceptCriterion):
self._tree.setContainerDataSource(ExampleUtil.getHardwareContainer())
self._tree.setItemCaptionPropertyId(ExampleUtil.hw_PROPERTY_NAME)
# Expand all nodes
for idd in self._tree.rootItemIds():
self._tree.expandItemsRecursively(idd)
self._tree.setDragMode(TreeDragMode.NODE)
self._tree.setDropHandler(TreeDropHandler(self))
def initializeTable(self, acceptCriterion):
tableContainer = BeanItemContainer(Hardware)
tableContainer.addItem(Hardware('Dell OptiPlex 380', 'Desktops'))
tableContainer.addItem(Hardware('Benq T900HD', 'Monitors'))
tableContainer.addItem(Hardware('Lenovo ThinkPad T500', 'Laptops'))
self._table.setContainerDataSource(tableContainer)
self._table.setVisibleColumns(['category', 'name'])
# Handle drop in table: move hardware item or subtree to the table
self._table.setDragMode(TableDragMode.ROW)
self._table.setDropHandler(TableDropHandler(self))
@classmethod
def getTreeNodeName(cls, source, sourceId):
return source.getItem(sourceId).getItemProperty(
ExampleUtil.hw_PROPERTY_NAME).getValue()
class DragDropServerValidationExample(HorizontalLayout):
def __init__(self):
super(DragDropServerValidationExample, self).__init__()
self.setSpacing(True)
# First create the components to be able to refer to them as allowed
# drag sources
self._table = Table('Drag persons onto their relatives')
self._table.setWidth('100%')
self._container = ExampleUtil.getPersonContainer()
self._table.setContainerDataSource(self._container)
# Drag and drop support
self._table.setDragMode(TableDragMode.ROW)
self._table.setDropHandler( TableDropHandler(self) )
self.addComponent(self._table)
def getFullName(self, itemId):
item = self._container.getItem(itemId)
if item is None:
# should not happen in this example
return None
fn = item.getItemProperty(
ExampleUtil.PERSON_PROPERTY_FIRSTNAME).getValue()
ln = item.getItemProperty(
ExampleUtil.PERSON_PROPERTY_LASTNAME).getValue()
return fn + ' ' + ln
def getLastName(self, itemId):
item = self._container.getItem(itemId)
if item is None:
# should not happen in this example
return None
return item.getItemProperty(
ExampleUtil.PERSON_PROPERTY_LASTNAME).getValue()
class DragDropServerValidationExample(HorizontalLayout):
def __init__(self):
super(DragDropServerValidationExample, self).__init__()
self.setSpacing(True)
# First create the components to be able to refer to them as allowed
# drag sources
self._table = Table('Drag persons onto their relatives')
self._table.setWidth('100%')
self._container = ExampleUtil.getPersonContainer()
self._table.setContainerDataSource(self._container)
# Drag and drop support
self._table.setDragMode(TableDragMode.ROW)
self._table.setDropHandler(TableDropHandler(self))
self.addComponent(self._table)
def getFullName(self, itemId):
item = self._container.getItem(itemId)
if item is None:
# should not happen in this example
return None
fn = item.getItemProperty(
ExampleUtil.PERSON_PROPERTY_FIRSTNAME).getValue()
ln = item.getItemProperty(
ExampleUtil.PERSON_PROPERTY_LASTNAME).getValue()
return fn + ' ' + ln
def getLastName(self, itemId):
item = self._container.getItem(itemId)
if item is None:
# should not happen in this example
return None
return item.getItemProperty(
ExampleUtil.PERSON_PROPERTY_LASTNAME).getValue()
class DragDropTableTreeExample(HorizontalLayout):
"""Demonstrate moving data back and forth between a table and a tree using
drag and drop.
The tree and the table use different data structures: The category is a
separate node in the tree and each item just has a String, whereas the
table contains items with both a name and a category. Data conversions
between these representations are made during drop processing.
"""
def __init__(self):
super(DragDropTableTreeExample, self).__init__()
self.setSpacing(True)
# First create the components to be able to refer to them as allowed
# drag sources
self._tree = Tree('Drag from tree to table')
self._table = Table('Drag from table to tree')
self._table.setWidth('100%')
# Populate the tree and set up drag & drop
self.initializeTree(SourceIs(self._table))
# Populate the table and set up drag & drop
self.initializeTable(SourceIs(self._tree))
# Add components
self.addComponent(self._tree)
self.addComponent(self._table)
def initializeTree(self, acceptCriterion):
self._tree.setContainerDataSource(ExampleUtil.getHardwareContainer())
self._tree.setItemCaptionPropertyId(ExampleUtil.hw_PROPERTY_NAME)
# Expand all nodes
for idd in self._tree.rootItemIds():
self._tree.expandItemsRecursively(idd)
self._tree.setDragMode(TreeDragMode.NODE)
self._tree.setDropHandler( TreeDropHandler(self) )
def initializeTable(self, acceptCriterion):
tableContainer = BeanItemContainer(Hardware)
tableContainer.addItem(Hardware('Dell OptiPlex 380', 'Desktops'))
tableContainer.addItem(Hardware('Benq T900HD', 'Monitors'))
tableContainer.addItem(Hardware('Lenovo ThinkPad T500', 'Laptops'))
self._table.setContainerDataSource(tableContainer)
self._table.setVisibleColumns(['category', 'name'])
# Handle drop in table: move hardware item or subtree to the table
self._table.setDragMode(TableDragMode.ROW)
self._table.setDropHandler( TableDropHandler(self) )
@classmethod
def getTreeNodeName(cls, source, sourceId):
return source.getItem(sourceId).getItemProperty(
ExampleUtil.hw_PROPERTY_NAME).getValue()
