def dropMimeData( # noqa: N802
self,
mime: QMimeData,
action: Qt.DropAction,
row: int,
column: int,
parent: QModelIndex = QModelIndex) -> bool:
"""
This function unpacks QMimeData and insert them to the view where they are dropped.
Inserting is a bit complicated since sometimes we need to create a parent when it is not in the view yet:
- when child (marker gene) is dropped we insert it under the current parent (group) if it exist othervise
we crate a new parent.
- when group item is inserted it merge it with current same parent item if exist or insert it if it does
not exists
"""
if action == Qt.IgnoreAction:
return True
if not mime.hasFormat(self.MIME_TYPE):
return False
items = mime.property("_items")
if items is None:
return False
# when parent item in items remove its child since all group will be moved
items = [it for it in items if it.parentItem not in items]
self.insert_items(items)
self.data_added.emit()
return True
def test_activate_drop_node(self):
class NodeFromMimeData(TestNodeFromMimeData):
def shouldActivateNode(self) -> bool:
self.shouldActivateNode_called += 1
return True
shouldActivateNode_called = 0
def activateNode(self, document: 'SchemeEditWidget', node: 'Node',
widget: 'QWidget') -> None:
self.activateNode_called += 1
super().activateNode(document, node, widget)
widget.didActivate = True
activateNode_called = 0
w = self.w
viewport = w.view().viewport()
workflow = Scheme()
wm = workflow.widget_manager = TestingWidgetManager()
wm.set_creation_policy(TestingWidgetManager.Immediate)
wm.set_workflow(workflow)
w.setScheme(workflow)
handler = NodeFromMimeData()
w.setDropHandlers([handler])
mime = QMimeData()
mime.setData(TestNodeFromMimeData.format_, b'abc')
spy = QSignalSpy(wm.widget_for_node_added)
dragDrop(viewport, mime, QPoint(10, 10))
self.assertEqual(len(spy), 1)
self.assertGreaterEqual(handler.shouldActivateNode_called, 1)
self.assertGreaterEqual(handler.activateNode_called, 1)
_, widget = spy[0]
self.assertTrue(widget.didActivate)
workflow.clear()
def __onDragStarted(self, index):
desc = index.data(QtWidgetRegistry.WIDGET_DESC_ROLE)
icon = index.data(Qt.DecorationRole)
drag_data = QMimeData()
drag_data.setData(
"application/vnv.orange-canvas.registry.qualified-name",
desc.qualified_name.encode('utf-8')
)
drag = QDrag(self)
drag.setPixmap(icon.pixmap(38))
drag.setMimeData(drag_data)
# TODO: Should animate (accept) hide.
self.hide()
# When a drag is started and the menu hidden the item's tool tip
# can still show for a short time UNDER the cursor preventing a
# drop.
viewport = self.__menu.view().viewport()
filter = ToolTipEventFilter()
viewport.installEventFilter(filter)
drag.exec_(Qt.CopyAction)
viewport.removeEventFilter(filter)
def __onDragStarted(self, index):
# type: (QModelIndex) -> None
desc = index.data(QtWidgetRegistry.WIDGET_DESC_ROLE)
icon = index.data(Qt.DecorationRole)
drag_data = QMimeData()
drag_data.setData(
"application/vnv.orange-canvas.registry.qualified-name",
desc.qualified_name.encode('utf-8')
)
drag = QDrag(self)
drag.setPixmap(icon.pixmap(38))
drag.setMimeData(drag_data)
# TODO: Should animate (accept) hide.
self.hide()
# When a drag is started and the menu hidden the item's tool tip
# can still show for a short time UNDER the cursor preventing a
# drop.
viewport = self.__menu.view().viewport()
filter = ToolTipEventFilter()
viewport.installEventFilter(filter)
drag.exec_(Qt.CopyAction)
viewport.removeEventFilter(filter)
def mimeData(self, indexlist):
if len(indexlist) != 1:
return None
mime = QMimeData()
mime.setData(self.MIME_TYPE, b'see properties: item_index')
mime.setProperty('item_index', indexlist[0])
return mime
def mimeData(indexlist):
assert len(indexlist) == 1
index = indexlist[0]
qname = index.data(DescriptionRole).qualname
m = QMimeData()
m.setData("application/x-qwidget-ref", qname.encode("utf-8"))
return m
def mimeData(indexlist):
assert len(indexlist) == 1
index = indexlist[0]
qname = index.data(DescriptionRole).qualname
m = QMimeData()
m.setData("application/x-qwidget-ref", qname.encode("utf-8"))
return m
def test_drop_sample(self):
path = os.path.join(self._path, "lib.cell.count")
data = QMimeData()
data.setUrls([QUrl.fromLocalFile(path)])
event = QDropEvent(QPoint(10, 10), Qt.MoveAction, data, Qt.NoButton,
Qt.NoModifier, QDropEvent.Drop)
self.widget.view.dropEvent(event)
self.assertEqual(self.widget.view.model().rowCount(), 3)
def insertFromMimeData(mime: QMimeData):
fragment: Optional[QTextDocumentFragment] = None
if mime.hasHtml() and acceptRichText:
fragment = QTextDocumentFragment.fromHtml(mime.html())
elif mime.hasText():
fragment = QTextDocumentFragment.fromPlainText(mime.text())
if fragment is not None:
item.textCursor().insertFragment(fragment)
def test_script_insert_mime_text(self):
current = self.widget.text.toPlainText()
insert = "test\n"
cursor = self.widget.text.cursor()
cursor.setPos(0, 0)
mime = QMimeData()
mime.setText(insert)
self.widget.text.insertFromMimeData(mime)
self.assertEqual(insert + current, self.widget.text.toPlainText())
def test_script_insert_mime_text(self):
current = self.widget.text.toPlainText()
insert = "test\n"
cursor = self.widget.text.cursor()
cursor.setPos(0, 0)
mime = QMimeData()
mime.setText(insert)
self.widget.text.insertFromMimeData(mime)
self.assertEqual(insert + current, self.widget.text.toPlainText())
def test_files_drop(self):
w = self.w
workflow = w.scheme()
mime = QMimeData()
mime.setUrls([QUrl("file:///foo/bar")] * 2)
dragDrop(w.view().viewport(), mime, QPoint(10, 10))
self.assertEqual(len(workflow.nodes), 1)
self.assertEqual(workflow.nodes[0].properties,
{"param": ["/foo/bar"] * 2})
def test_script_insert_mime_file(self):
with named_file("test", suffix=".42") as fn:
previous = self.widget.text.toPlainText()
mime = QMimeData()
url = QUrl.fromLocalFile(fn)
mime.setUrls([url])
self.widget.text.insertFromMimeData(mime)
self.assertEqual("test", self.widget.text.toPlainText())
self.widget.text.undo()
self.assertEqual(previous, self.widget.text.toPlainText())
def test_script_insert_mime_file(self):
with named_file("test", suffix=".42") as fn:
previous = self.widget.text.toPlainText()
mime = QMimeData()
url = QUrl.fromLocalFile(fn)
mime.setUrls([url])
self.widget.text.insertFromMimeData(mime)
self.assertEqual("test", self.widget.text.toPlainText())
self.widget.text.undo()
self.assertEqual(previous, self.widget.text.toPlainText())
def mimeData(self, indexlist):
descriptors = []
vars = []
for index in indexlist:
var = self[index.row()]
descriptors.append((var.name, vartype(var)))
vars.append(var)
mime = QMimeData()
mime.setData(self.MIME_TYPE,
QByteArray(str(descriptors).encode("utf-8")))
mime._vars = vars
return mime
def mimeData(self, indexlist):
descriptors = []
vars = []
for index in indexlist:
var = self[index.row()]
descriptors.append((var.name, vartype(var)))
vars.append(var)
mime = QMimeData()
mime.setData(self.MIME_TYPE,
QByteArray(str(descriptors).encode("utf-8")))
mime._vars = vars
return mime
def test_script_insert_mime_file(self):
with named_file("test", suffix=".42") as fn:
previous = self.widget.text.toPlainText()
mime = QMimeData()
url = QUrl.fromLocalFile(fn)
mime.setUrls([url])
self.widget.text.insertFromMimeData(mime)
text = self.widget.text.toPlainText().split(
"print('Hello world')")[0]
self.assertTrue("'" + fn + "'", text)
self.widget.text.undo()
self.assertEqual(previous, self.widget.text.toPlainText())
def mimeData(self, indexlist):
"""
Reimplemented.
For efficiency reasons only the variable instances are set on the
mime data (under `'_items'` property)
"""
items = [self[index.row()] for index in indexlist]
mime = QMimeData()
# the encoded 'data' is empty, variables are passed by properties
mime.setData(self.MIME_TYPE, b'')
mime.setProperty("_items", items)
return mime
def test_drag_drop(self):
w = self.w
w.setRegistry(self.reg)
handler = TestDropHandler()
w.setDropHandlers([handler])
viewport = w.view().viewport()
mime = QMimeData()
mime.setData(handler.format_, b'abc')
dragDrop(viewport, mime, QPoint(10, 10))
self.assertEqual(handler.doDrop_calls, 1)
self.assertGreaterEqual(handler.accepts_calls, 1)
self.assertIsNone(w._userInteractionHandler())
handler.accepts_calls = 0
handler.doDrop_calls = 0
mime = QMimeData()
mime.setData("application/prs.do-not-accept-this", b'abc')
dragDrop(viewport, mime, QPoint(10, 10))
self.assertGreaterEqual(handler.accepts_calls, 1)
self.assertEqual(handler.doDrop_calls, 0)
self.assertIsNone(w._userInteractionHandler())
dragEnterLeave(viewport, mime, QPoint(10, 10))
self.assertIsNone(w._userInteractionHandler())
def __startDrag(self, button):
"""
Start a drag from button
"""
action = button.defaultAction()
desc = action.data() # Widget Description
icon = action.icon()
drag_data = QMimeData()
drag_data.setData(
"application/vnv.orange-canvas.registry.qualified-name",
desc.qualified_name.encode("utf-8"))
drag = QDrag(button)
drag.setPixmap(icon.pixmap(self.iconSize()))
drag.setMimeData(drag_data)
drag.exec_(Qt.CopyAction)
def __startDrag(self, button):
"""
Start a drag from button
"""
action = button.defaultAction()
desc = action.data() # Widget Description
icon = action.icon()
drag_data = QMimeData()
drag_data.setData(
"application/vnv.orange-canvas.registry.qualified-name",
desc.qualified_name.encode("utf-8")
)
drag = QDrag(button)
drag.setPixmap(icon.pixmap(self.iconSize()))
drag.setMimeData(drag_data)
drag.exec_(Qt.CopyAction)
def _drop_event(self, url):
# make sure data does not get garbage collected before it used
self.event_data = data = QMimeData()
data.setUrls([QUrl(url)])
return QDropEvent(QPoint(0, 0), Qt.MoveAction, data, Qt.NoButton,
Qt.NoModifier, QDropEvent.Drop)
def _drag_enter_event(self, url):
# make sure data does not get garbage collected before it used
# pylint: disable=attribute-defined-outside-init
self.event_data = data = QMimeData()
data.setUrls([QUrl(url)])
return QDragEnterEvent(QPoint(0, 0), Qt.MoveAction, data, Qt.NoButton,
Qt.NoModifier)
def mimeData(self, index_list: List[QModelIndex]) -> QMimeData: # noqa: N802
"""
This function packs data in QMimeData in order to move them to other view with drag and drop functionality.
"""
items = [self.node_from_index(index) for index in index_list]
mime = QMimeData()
# the encoded 'data' is empty, variables are passed by properties
mime.setData(self.MIME_TYPE, b'')
mime.setProperty("_items", items)
mime.setProperty("_source_id", id(self))
return mime
def __startInternalDrag(self, frame, hotSpot=None):
drag = QDrag(self)
pixmap = QPixmap(frame.size())
frame.render(pixmap)
transparent = QPixmap(pixmap.size())
transparent.fill(Qt.transparent)
painter = QPainter(transparent)
painter.setOpacity(0.35)
painter.drawPixmap(0, 0, pixmap.width(), pixmap.height(), pixmap)
painter.end()
drag.setPixmap(transparent)
if hotSpot is not None:
drag.setHotSpot(hotSpot)
mime = QMimeData()
mime.setData("application/x-internal-move", b"")
drag.setMimeData(mime)
return drag.exec(Qt.MoveAction)
def __startInternalDrag(self, frame, hotSpot=None):
drag = QDrag(self)
pixmap = QPixmap(frame.size())
frame.render(pixmap)
transparent = QPixmap(pixmap.size())
transparent.fill(Qt.transparent)
painter = QPainter(transparent)
painter.setOpacity(0.35)
painter.drawPixmap(0, 0, pixmap.width(), pixmap.height(), pixmap)
painter.end()
drag.setPixmap(transparent)
if hotSpot is not None:
drag.setHotSpot(hotSpot)
mime = QMimeData()
mime.setData("application/x-internal-move", b"")
drag.setMimeData(mime)
return drag.exec_(Qt.MoveAction)
def test_drop_event(self):
w = self.w
w.setRegistry(self.reg)
workflow = w.scheme()
desc = self.reg.widget("one")
viewport = w.view().viewport()
mime = QMimeData()
mime.setData(
"application/vnd.orange-canvas.registry.qualified-name",
desc.qualified_name.encode("utf-8")
)
self.assertTrue(dragDrop(viewport, mime, QPoint(10, 10)))
self.assertEqual(len(workflow.nodes), 1)
self.assertEqual(workflow.nodes[0].description, desc)
dragEnterLeave(viewport, mime)
self.assertEqual(len(workflow.nodes), 1)
def table_selection_to_mime_data(table):
"""Copy the current selection in a QTableView to the clipboard.
"""
lines = table_selection_to_list(table)
as_csv = lines_to_csv_string(lines, dialect="excel").encode("utf-8")
as_tsv = lines_to_csv_string(lines, dialect="excel-tab").encode("utf-8")
mime = QMimeData()
mime.setData("text/csv", QByteArray(as_csv))
mime.setData("text/tab-separated-values", QByteArray(as_tsv))
mime.setData("text/plain", QByteArray(as_tsv))
return mime
def canDropMimeData( # noqa: N802
self, data: QMimeData, action: Qt.DropAction, row: int, column: int, parent: QModelIndex
) -> bool:
"""
This function enable or disable drop action to the view. With current implementation we disable drop action to
the same view.
"""
if data.property("_source_id") == id(self):
return False
else:
return True
def test_drop(self):
widget = self.widget
with tempfile.TemporaryDirectory() as tmpdir:
urlpath = QUrl.fromLocalFile(tmpdir)
data = QMimeData()
data.setUrls([urlpath])
pos = widget.recent_cb.rect().center()
actions = Qt.LinkAction | Qt.CopyAction
ev = QDragEnterEvent(pos, actions, data, Qt.LeftButton,
Qt.NoModifier)
assert QApplication.sendEvent(widget.recent_cb, ev)
self.assertTrue(ev.isAccepted())
del ev
ev = QDropEvent(pos, actions, data, Qt.LeftButton, Qt.NoModifier,
QDropEvent.Drop)
assert QApplication.sendEvent(widget.recent_cb, ev)
self.assertTrue(ev.isAccepted())
del ev
self.assertEqual(widget.currentPath, urlpath.toLocalFile())
self._startandwait(widget)
self.widget.commit()
def createMimeDataFromSelection(
fragment: QTextDocumentFragment) -> QMimeData:
mime = QMimeData()
mime.setText(fragment.toPlainText())
mime.setHtml(fragment.toHtml(b"utf-8"))
# missing here is odf
return mime
def mimeData(self, indexlist):
if len(indexlist) != 1:
return None
mime = QMimeData()
mime.setData(self.MIME_TYPE, b'see properties: item_index')
mime.setProperty('item_index', indexlist[0])
return mime
def test_drop(self):
widget = self.widget
with tempfile.TemporaryDirectory() as tmpdir:
urlpath = QUrl.fromLocalFile(tmpdir)
data = QMimeData()
data.setUrls([urlpath])
pos = widget.recent_cb.rect().center()
actions = Qt.LinkAction | Qt.CopyAction
ev = QDragEnterEvent(pos, actions, data,
Qt.LeftButton, Qt.NoModifier)
assert QApplication.sendEvent(widget.recent_cb, ev)
self.assertTrue(ev.isAccepted())
del ev
ev = QDropEvent(pos, actions, data,
Qt.LeftButton, Qt.NoModifier, QDropEvent.Drop)
assert QApplication.sendEvent(widget.recent_cb, ev)
self.assertTrue(ev.isAccepted())
del ev
self.assertEqual(widget.recent_paths[0].abspath,
urlpath.toLocalFile())
self._startandwait(widget)
self.widget.commit()
def copy(self):
"""Copy to the clipboard"""
data = QMimeData()
text = '\n'.join([cursor.selectedText() \
for cursor in self.cursors()])
data.setText(text)
data.setData(self.MIME_TYPE, text.encode('utf8'))
QApplication.clipboard().setMimeData(data)
def table_selection_to_mime_data(table):
"""Copy the current selection in a QTableView to the clipboard.
"""
lines = table_selection_to_list(table)
csv = lines_to_csv_string(lines, dialect="excel")
tsv = lines_to_csv_string(lines, dialect="excel-tab")
mime = QMimeData()
mime.setData("text/csv", QByteArray(csv))
mime.setData("text/tab-separated-values", QByteArray(tsv))
mime.setData("text/plain", QByteArray(tsv))
return mime
def mimeData(self, indexlist):
if len(indexlist) <= 0:
return None
def itemData(row):
# type: (int) -> Dict[int, Any]
if row < len(self._other_data):
return {key: val for key, val in self._other_data[row].items()
if isinstance(key, int)}
else:
return {} # pragma: no cover
items = [self[i.row()] for i in indexlist]
itemdata = [itemData(i.row()) for i in indexlist]
mime = QMimeData()
mime.setData(self.MIME_TYPE, b'see properties: _items, _itemdata')
mime.setProperty('_items', items)
mime.setProperty('_itemdata', itemdata)
return mime
def mimeData(self, indexlist):
"""
Reimplemented.
For efficiency reasons only the variable instances are set on the
mime data (under `'_items'` property)
"""
items = [self[index.row()] for index in indexlist]
mime = QMimeData()
# the encoded 'data' is empty, variables are passed by properties
mime.setData(self.MIME_TYPE, b'')
mime.setProperty("_items", items)
return mime
def mimeData(self, indexlist):
if len(indexlist) <= 0:
return None
def itemData(row):
# type: (int) -> Dict[int, Any]
if row < len(self._other_data):
return {key: val for key, val in self._other_data[row].items()
if isinstance(key, int)}
else:
return {} # pragma: no cover
items = [self[i.row()] for i in indexlist]
itemdata = [itemData(i.row()) for i in indexlist]
mime = QMimeData()
mime.setData(self.MIME_TYPE, b'see properties: _items, _itemdata')
mime.setProperty('_items', items)
mime.setProperty('_itemdata', itemdata)
return mime
def _export(exporter, _):
buffer = exporter.export(toBytes=True)
mimedata = QMimeData()
mimedata.setData("image/png", buffer)
QApplication.clipboard().setMimeData(mimedata)
def _drag_enter_event(self, variables):
# pylint: disable=attribute-defined-outside-init
self.event_data = mime = QMimeData()
mime.setProperty("_items", variables)
return QDragEnterEvent(QPoint(0, 0), Qt.MoveAction, mime, Qt.NoButton,
Qt.NoModifier)
def _export(exporter, _):
buffer = exporter.export(toBytes=True)
mimedata = QMimeData()
mimedata.setData("image/png", buffer)
QApplication.clipboard().setMimeData(mimedata)
def _drag_enter_event(self, variables):
self.event_data = mime = QMimeData()
mime.setProperty("_items", variables)
return QDragEnterEvent(QPoint(0, 0), Qt.MoveAction, mime, Qt.NoButton,
Qt.NoModifier)
def test_plugin_drag_drop(self):
handler = PluginDropHandler()
w = self.w
w.setRegistry(self.reg)
w.setDropHandlers([handler])
workflow = w.scheme()
viewport = w.view().viewport()
# Test empty handler
mime = QMimeData()
mime.setData(TestDropHandler.format_, b'abc')
dragDrop(viewport, mime, QPoint(10, 10))
self.assertIsNone(w._userInteractionHandler())
# test create node handler
mime = QMimeData()
mime.setData(TestNodeFromMimeData.format_, b'abc')
dragDrop(viewport, mime, QPoint(10, 10))
self.assertIsNone(w._userInteractionHandler())
self.assertEqual(len(workflow.nodes), 1)
self.assertEqual(workflow.nodes[0].description.name, "one")
self.assertEqual(workflow.nodes[0].properties, {"a": "from drop"})
workflow.clear()
# Test both simultaneously (menu for selection)
mime = QMimeData()
mime.setData(TestDropHandler.format_, b'abc')
mime.setData(TestNodeFromMimeData.format_, b'abc')
def exec(self, *args):
return action_by_name(self.actions(), "-pick-me")
# intercept QMenu.exec, force select the TestNodeFromMimeData handler
with mock.patch.object(QMenu, "exec", exec):
dragDrop(viewport, mime, QPoint(10, 10))
self.assertEqual(len(workflow.nodes), 1)
self.assertEqual(workflow.nodes[0].description.name, "one")
self.assertEqual(workflow.nodes[0].properties, {"a": "from drop"})
