def _add_exclude_filter(self, filter_index=False):
"""
:param filter_index: if false then this function shows a QMenu to allow the user to choose a
type of message filter. ''bool''
OR
:param filter_index: the index of the filter to be added, ''int''
:return: if a filter was added then the index is returned, ''int''
OR
:return: if no filter was added then None is returned, ''NoneType''
"""
if filter_index is False:
filter_index = -1
filter_select_menu = QMenu()
for index in self._filter_factory_order:
# flattens the _exclude filters list and only adds the item if it doesn't
# already exist
if index in ['message', 'location'] or \
not self.filter_factory[index][1] in \
[type(item) for sublist in self._exclude_filters for item in sublist]:
filter_select_menu.addAction(self.filter_factory[index][0])
action = filter_select_menu.exec_(QCursor.pos())
if action is None:
return None
for index in self._filter_factory_order:
if self.filter_factory[index][0] == action.text():
filter_index = index
if filter_index == -1:
return None
index = len(self._exclude_filters)
newfilter = self.filter_factory[filter_index][1]()
if len(self.filter_factory[filter_index]) >= 4:
newwidget = self.filter_factory[filter_index][2](
newfilter, self._rospack, self.filter_factory[filter_index][3])
else:
newwidget = self.filter_factory[filter_index][2](newfilter,
self._rospack)
# pack the new filter tuple onto the filter list
self._exclude_filters.append(
(newfilter,
FilterWrapperWidget(newwidget,
self.filter_factory[filter_index][0]),
filter_index))
self._proxy_model.add_exclude_filter(newfilter)
newfilter.filter_changed_signal.connect(
self._proxy_model.handle_exclude_filters_changed)
self._exclude_filters[index][1].delete_button.clicked.connect(
self._delete_exclude_filter)
self._model.rowsInserted.connect(
self._exclude_filters[index][1].repopulate)
# place the widget in the proper location
self.exclude_table.insertRow(index)
self.exclude_table.setCellWidget(index, 0,
self._exclude_filters[index][1])
self.exclude_table.resizeColumnsToContents()
self.exclude_table.resizeRowsToContents()
newfilter.filter_changed_signal.emit()
return index
def _add_exclude_filter(self, filter_index=False):
"""
:param filter_index: if false then this function shows a QMenu to allow the user to choose a type of message filter. ''bool''
OR
:param filter_index: the index of the filter to be added, ''int''
:return: if a filter was added then the index is returned, ''int''
OR
:return: if no filter was added then None is returned, ''NoneType''
"""
if filter_index is False:
filter_index = -1
filter_select_menu = QMenu()
for index in self._filter_factory_order:
# flattens the _exclude filters list and only adds the item if it doesn't already exist
if index in ['message', 'location'] or not self.filter_factory[index][1] in [type(item) for sublist in self._exclude_filters for item in sublist]:
filter_select_menu.addAction(self.filter_factory[index][0])
action = filter_select_menu.exec_(QCursor.pos())
if action is None:
return None
for index in self._filter_factory_order:
if self.filter_factory[index][0] == action.text():
filter_index = index
if filter_index == -1:
return None
index = len(self._exclude_filters)
newfilter = self.filter_factory[filter_index][1]()
if len(self.filter_factory[filter_index]) >= 4:
newwidget = self.filter_factory[filter_index][2](newfilter, self._rospack, self.filter_factory[filter_index][3])
else:
newwidget = self.filter_factory[filter_index][2](newfilter, self._rospack)
# pack the new filter tuple onto the filter list
self._exclude_filters.append((newfilter, FilterWrapperWidget(newwidget, self.filter_factory[filter_index][0]), filter_index))
self._proxy_model.add_exclude_filter(newfilter)
newfilter.filter_changed_signal.connect(self._proxy_model.handle_exclude_filters_changed)
self._exclude_filters[index][1].delete_button.clicked.connect(self._delete_exclude_filter)
self._model.rowsInserted.connect(self._exclude_filters[index][1].repopulate)
# place the widget in the proper location
self.exclude_table.insertRow(index)
self.exclude_table.setCellWidget(index, 0, self._exclude_filters[index][1])
self.exclude_table.resizeColumnsToContents()
self.exclude_table.resizeRowsToContents()
newfilter.filter_changed_signal.emit()
return index
def _on_ctrl_info(self, index):
popup = self._popup_widget
ctrl = self._controllers[index.row()]
popup.ctrl_name.setText(ctrl.name)
popup.ctrl_type.setText(ctrl.type)
res_model = QStandardItemModel()
model_root = QStandardItem('Claimed Resources')
res_model.appendRow(model_root)
for hw_res in ctrl.claimed_resources:
hw_iface_item = QStandardItem(hw_res.hardware_interface)
model_root.appendRow(hw_iface_item)
for res in hw_res.resources:
res_item = QStandardItem(res)
hw_iface_item.appendRow(res_item)
popup.resource_tree.setModel(res_model)
popup.resource_tree.setItemDelegate(FontDelegate(popup.resource_tree))
popup.resource_tree.expandAll()
popup.move(QCursor.pos())
popup.show()
def _on_ctrl_info(self, index):
popup = self._popup_widget
ctrl = self._controllers[index.row()]
popup.ctrl_name.setText(ctrl.name)
popup.ctrl_type.setText(ctrl.type)
res_model = QStandardItemModel()
model_root = QStandardItem('Claimed Resources')
res_model.appendRow(model_root)
for hw_res in ctrl.claimed_resources:
hw_iface_item = QStandardItem(hw_res.hardware_interface)
model_root.appendRow(hw_iface_item)
for res in hw_res.resources:
res_item = QStandardItem(res)
hw_iface_item.appendRow(res_item)
popup.resource_tree.setModel(res_model)
popup.resource_tree.setItemDelegate(FontDelegate(popup.resource_tree))
popup.resource_tree.expandAll()
popup.move(QCursor.pos())
popup.show()
def showEvent(self, event):
geom = self.frameGeometry()
geom.moveTopLeft(QCursor.pos())
self.setGeometry(geom)
super(QDialog, self).showEvent(event)
class DetachableTabBar(QTabBar):
'''
The TabBar class re-implements some of the functionality of the QTabBar widget
'''
detach_tab_signal = Signal(int, QPoint, bool) # tab at pos, mouse cursor position, by double click
move_tab_signal = Signal(int, int)
empty_signal = Signal()
def __init__(self, parent=None):
QTabBar.__init__(self, parent)
self.setAcceptDrops(True)
self.setElideMode(Qt.ElideRight)
self.setSelectionBehaviorOnRemove(QTabBar.SelectLeftTab)
self.drag_start_pos = QPoint()
self.drag_droped_pos = QPoint()
self.mouse_cursor = QCursor()
self.drag_initiated = False
def mouseDoubleClickEvent(self, event):
'''
Send the detach_tab_signal when a tab is double clicked
'''
event.accept()
self.detach_tab_signal.emit(self.tabAt(event.pos()), self.mouse_cursor.pos(), True)
def mousePressEvent(self, event):
'''
Set the starting position for a drag event when the mouse button is pressed
'''
self.drag_droped_pos = QPoint(0, 0)
self.drag_initiated = False
if event.button() == Qt.LeftButton:
self.drag_start_pos = event.pos()
QTabBar.mousePressEvent(self, event)
def mouseMoveEvent(self, event):
'''
Determine if the current movement is a drag. If it is, convert it into a QDrag. If the
drag ends inside the tab bar, emit an move_tab_signal. If the drag ends outside the tab
bar, emit an detach_tab_signal.
'''
# Determine if the current movement is detected as a drag
if not self.drag_start_pos.isNull() and ((event.pos() - self.drag_start_pos).manhattanLength() > QApplication.startDragDistance()):
self.drag_initiated = True
# If the current movement is a drag initiated by the left button
if ((event.buttons() & Qt.LeftButton)) and self.drag_initiated:
# Stop the move event
finishMoveEvent = QMouseEvent(QEvent.MouseMove, event.pos(), Qt.NoButton, Qt.NoButton, Qt.NoModifier)
QTabBar.mouseMoveEvent(self, finishMoveEvent)
# Convert the move event into a drag
drag = QDrag(self)
mime_data = QMimeData()
mime_data.setData('action', b'application/tab-detach')
drag.setMimeData(mime_data)
# Create the appearance of dragging the tab content
# tab_index = self.tabAt(self.drag_start_pos)
pixmap = self.parentWidget().grab()
targetPixmap = QPixmap(pixmap.size())
targetPixmap.fill(Qt.transparent)
painter = QPainter(targetPixmap)
painter.setOpacity(0.85)
painter.drawPixmap(0, 0, pixmap)
painter.end()
drag.setPixmap(targetPixmap)
# Initiate the drag
dropAction = drag.exec_(Qt.MoveAction | Qt.CopyAction)
# If the drag completed outside of the tab bar, detach the tab and move
# the content to the current cursor position
if dropAction == Qt.IgnoreAction:
event.accept()
self.detach_tab_signal.emit(self.tabAt(self.drag_start_pos), self.mouse_cursor.pos(), False)
elif dropAction == Qt.MoveAction:
# else if the drag completed inside the tab bar, move the selected tab to the new position
if not self.drag_droped_pos.isNull():
self.move_tab_signal.emit(self.tabAt(self.drag_start_pos), self.tabAt(self.drag_droped_pos))
else:
# else if the drag completed inside the tab bar new TabBar, move the selected tab to the new TabBar
self.detach_tab_signal.emit(self.tabAt(self.drag_start_pos), self.mouse_cursor.pos(), False)
event.accept()
else:
QTabBar.mouseMoveEvent(self, event)
def dragEnterEvent(self, event):
'''
Determine if the drag has entered a tab position from another tab position
'''
self.drag_droped_pos = QPoint(0, 0)
mime_data = event.mimeData()
formats = mime_data.formats()
if 'action' in formats and mime_data.data('action') == 'application/tab-detach':
event.acceptProposedAction()
QTabBar.dragMoveEvent(self, event)
def dropEvent(self, event):
'''
Get the position of the end of the drag
'''
self.drag_droped_pos = event.pos()
mime_data = event.mimeData()
formats = mime_data.formats()
if 'action' in formats and mime_data.data('action') == 'application/tab-detach':
event.acceptProposedAction()
QTabBar.dropEvent(self, event)
def prepared_for_drop(self):
return not self.drag_droped_pos.isNull()
def tabRemoved(self, index):
QTabBar.tabRemoved(self, index)
if self.count() == 0:
self.empty_signal.emit()
