class Dashboard(Plugin):
"""
Base class from which dashboards should inherit.
:param context: the plugin context
:type context: qt_gui.plugin.Plugin
"""
def __init__(self, context):
super(Dashboard, self).__init__(context)
self.context = context
self.setup(context)
if not hasattr(self, 'name'):
self.name = 'Dashboard'
if not hasattr(self, 'max_icon_size'):
self.max_icon_size = QSize(50, 30)
self._main_widget = QToolBar()
self._main_widget.setIconSize(self.max_icon_size)
self._main_widget.setObjectName(self.name)
self._main_widget.setWindowTitle(self.name)
if context.serial_number() > 1:
self._main_widget.setWindowTitle(self._main_widget.windowTitle() +
(' (%d)' %
context.serial_number()))
# Convert list of widgets into layout
self.add_widgets()
# Display the dashboard
context.add_toolbar(self._main_widget)
def setup(self, context):
"""
Called during ``__init__`` Subclasses should do initialization here.
NOTE when overriding this method you should provide a ``self.name`` to
avoid naming conflicts.
:param context: The plugin context
:type context: qt_gui.plugin.Plugin
"""
pass
def shutdown_plugin(self):
"""
Called when the toolbar is closed by Qt.
"""
for widget in self._widgets:
if hasattr(widget, 'shutdown_widget'):
widget.shutdown_widget()
if hasattr(widget, 'close'):
widget.close()
self.shutdown_dashboard()
def shutdown_dashboard(self):
"""
Called after shutdown plugin, subclasses should do cleanup here, not in shutdown_plugin
"""
pass
def get_widgets(self):
"""
Most of the dashboard customization should be done here.
If this function is not overriden the dashboard will display nothing.
:returns: List of lists containing dashboard widgets, or list of lists
containing a string followed by a list of dashboard widgets.
"""
return []
def add_widgets(self):
"""
Add groups of widgets to _main_widget. Supports group labels.
This method can be reimplemented in order to customize appearances.
"""
widgets = self.get_widgets()
self._widgets = [
] # stores widgets which may need to be shut down when done
for group in widgets:
# Check for group label
if isinstance(group[0], str):
grouplabel, v = group
box = QGroupBox(grouplabel)
box.setContentsMargins(0, 18, 0, 0) # LTRB
# Apply the center-label directive only for single-icon groups
if len(group[1]) == 1:
box.setAlignment(Qt.AlignHCenter)
else:
box = QGroupBox()
box.setContentsMargins(0, 0, 0, 0) # LTRB
v = group
# Add widgets to QGroupBox
layout = QHBoxLayout()
layout.setSpacing(0)
layout.setContentsMargins(0, 0, 0, 0) # LTRB
for i in v:
try:
try:
i.setIconSize(
self.max_icon_size) # without this, icons are tiny
except AttributeError as e:
# triggers with battery which uses a QLabel instead of a QToolButton-based widget
pass
layout.addWidget(i)
self._widgets.append(i)
except:
raise Exception(
"All widgets must be a subclass of QWidget!")
layout.activate()
box.setLayout(layout)
self._main_widget.addWidget(box)
self._main_widget.addSeparator()
class Top(Plugin):
NODE_FIELDS = [
'pid', 'get_cpu_percent', 'get_memory_percent', 'get_num_threads'
]
OUT_FIELDS = [
'node_name', 'pid', 'cpu_percent', 'memory_percent', 'num_threads'
]
FORMAT_STRS = ['%s', '%s', '%0.2f', '%0.2f', '%s']
NODE_LABELS = ['Node', 'PID', 'CPU %', 'Mem %', 'Num Threads']
SORT_TYPE = [str, str, float, float, float]
TOOLTIPS = {
0: ('cmdline', lambda x: '\n'.join(textwrap.wrap(' '.join(x)))),
3: ('memory_info', lambda x:
('Resident: %0.2f MiB, Virtual: %0.2f MiB' %
(x[0] / 2**20, x[1] / 2**20)))
}
_node_info = NodeInfo()
name_filter = re.compile('')
def __init__(self, context):
super(Top, self).__init__(context)
# Give QObjects reasonable names
self.setObjectName('Top')
# Process standalone plugin command-line arguments
from argparse import ArgumentParser
parser = ArgumentParser()
# Add argument(s) to the parser.
parser.add_argument("-q",
"--quiet",
action="store_true",
dest="quiet",
help="Put plugin in silent mode")
args, unknowns = parser.parse_known_args(context.argv())
# if not args.quiet:
# print 'arguments: ', args
# print 'unknowns: ', unknowns
self._selected_node = ''
self._selected_node_lock = RLock()
# Setup the toolbar
self._toolbar = QToolBar()
self._filter_box = QLineEdit()
self._regex_box = QCheckBox()
self._regex_box.setText('regex')
self._toolbar.addWidget(QLabel('Filter'))
self._toolbar.addWidget(self._filter_box)
self._toolbar.addWidget(self._regex_box)
self._filter_box.returnPressed.connect(self.update_filter)
self._regex_box.stateChanged.connect(self.update_filter)
# Create a container widget and give it a layout
self._container = QWidget()
self._container.setWindowTitle('Process Monitor')
self._layout = QVBoxLayout()
self._container.setLayout(self._layout)
self._layout.addWidget(self._toolbar)
# Create the table widget
self._table_widget = QTreeWidget()
self._table_widget.setObjectName('TopTable')
self._table_widget.setColumnCount(len(self.NODE_LABELS))
self._table_widget.setHeaderLabels(self.NODE_LABELS)
self._table_widget.itemClicked.connect(self._tableItemClicked)
self._table_widget.setSortingEnabled(True)
self._table_widget.setAlternatingRowColors(True)
self._layout.addWidget(self._table_widget)
context.add_widget(self._container)
# Add a button for killing nodes
self._kill_button = QPushButton('Kill Node')
self._layout.addWidget(self._kill_button)
self._kill_button.clicked.connect(self._kill_node)
# Update twice since the first cpu% lookup will always return 0
self.update_table()
self.update_table()
self._table_widget.resizeColumnToContents(0)
# Start a timer to trigger updates
self._update_timer = QTimer()
self._update_timer.setInterval(1000)
self._update_timer.timeout.connect(self.update_table)
self._update_timer.start()
def _tableItemClicked(self, item, column):
with self._selected_node_lock:
self._selected_node = item.text(0)
def update_filter(self, *args):
if self._regex_box.isChecked():
expr = self._filter_box.text()
else:
expr = re.escape(self._filter_box.text())
self.name_filter = re.compile(expr)
self.update_table()
def _kill_node(self):
self._node_info.kill_node(self._selected_node)
def update_one_item(self, row, info):
twi = TopWidgetItem()
for col, field in enumerate(self.OUT_FIELDS):
val = info[field]
twi.setText(col, self.FORMAT_STRS[col] % val)
self._table_widget.insertTopLevelItem(row, twi)
for col, (key, func) in self.TOOLTIPS.items():
twi.setToolTip(col, func(info[key]))
with self._selected_node_lock:
if twi.text(0) == self._selected_node:
twi.setSelected(True)
twi.setHidden(len(self.name_filter.findall(info['node_name'])) == 0)
def update_table(self):
self._table_widget.clear()
infos = self._node_info.get_all_node_fields(self.NODE_FIELDS)
for nx, info in enumerate(infos):
self.update_one_item(nx, info)
def shutdown_plugin(self):
self._update_timer.stop()
def save_settings(self, plugin_settings, instance_settings):
instance_settings.set_value('filter_text', self._filter_box.text())
instance_settings.set_value('is_regex',
int(self._regex_box.checkState()))
def restore_settings(self, plugin_settings, instance_settings):
self._filter_box.setText(instance_settings.value('filter_text'))
is_regex_int = instance_settings.value('is_regex')
if is_regex_int:
self._regex_box.setCheckState(Qt.CheckState(is_regex_int))
else:
self._regex_box.setCheckState(Qt.CheckState(0))
self.update_filter()
class HandEyeCalibration(Plugin):
PLUGIN_TITLE = ' Intel OTC Robotics: Hand-Eye Calibration'
def __init__(self, context):
super(HandEyeCalibration, self).__init__(context)
self.context = context
self.node = context.node
self.widget = QWidget()
self.widget.setObjectName(self.PLUGIN_TITLE)
self.widget.setWindowTitle(self.PLUGIN_TITLE)
# Data
self.Tsamples = []
# Toolbar
_, path_pkg = get_resource('packages', 'handeye_dashboard')
print("{}".format(path_pkg))
self.snapshot_action = QAction(QIcon.fromTheme('camera-photo'),
'Take a snapshot', self.widget)
path = path_pkg + '/share/handeye_dashboard/images/capture.png'
self.calibrate_action = QAction(QIcon(QPixmap.fromImage(QImage(path))),
'Get the camera/robot transform',
self.widget)
self.clear_action = QAction(QIcon.fromTheme('edit-clear'),
'Clear the record data.', self.widget)
path = path_pkg + '/share/handeye_dashboard/images/UR5.png'
self.execut_action = QAction(QIcon(QPixmap.fromImage(QImage(path))),
'EStart the publishing the TF.',
self.widget)
self.toolbar = QToolBar()
self.toolbar.addAction(self.snapshot_action)
self.toolbar.addAction(self.calibrate_action)
self.toolbar.addAction(self.clear_action)
self.toolbar.addAction(self.execut_action)
# Toolbar0
self.l0 = QLabel(self.widget)
self.l0.setText("Camera-Mount-Type: ")
self.l0.setFixedWidth(150)
self.l0.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
self.combobox = QComboBox(self.widget)
self.combobox.addItem('attached on robot')
self.combobox.addItem('fixed beside robot')
self.toolbar0 = QToolBar()
self.toolbar0.addWidget(self.l0)
self.toolbar0.addWidget(self.combobox)
# Toolbar1
self.l1 = QLabel(self.widget)
self.l1.setText("Camera-Frame: ")
self.l1.setFixedWidth(150)
self.l1.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
self.camera_frame = QLineEdit(self.widget)
self.camera_frame.setText("camera_link")
self.toolbar1 = QToolBar()
self.toolbar1.addWidget(self.l1)
self.toolbar1.addWidget(self.camera_frame)
# Toolbar2
self.l2 = QLabel(self.widget)
self.l2.setText("Object-Frame: ")
self.l2.setFixedWidth(150)
self.l2.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
self.object_frame = QLineEdit(self.widget)
self.object_frame.setText("calib_board")
self.toolbar2 = QToolBar()
self.toolbar2.addWidget(self.l2)
self.toolbar2.addWidget(self.object_frame)
# Toolbar3
self.l3 = QLabel(self.widget)
self.l3.setText("Robot-Base-Frame: ")
self.l3.setFixedWidth(150)
self.l3.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
self.base_frame = QLineEdit(self.widget)
self.base_frame.setText("base")
self.toolbar3 = QToolBar()
self.toolbar3.addWidget(self.l3)
self.toolbar3.addWidget(self.base_frame)
# Toolbar4
self.l4 = QLabel(self.widget)
self.l4.setText("End-Effector-Frame: ")
self.l4.setFixedWidth(150)
self.l4.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
self.endeffector_frame = QLineEdit(self.widget)
self.endeffector_frame.setText("tool0")
self.toolbar4 = QToolBar()
self.toolbar4.addWidget(self.l4)
self.toolbar4.addWidget(self.endeffector_frame)
# Toolbar5
self.l5 = QLabel(self.widget)
self.l5.setText("Sample-Number: ")
self.l5.setFixedWidth(150)
self.l5.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
self.le5 = QLineEdit(self.widget)
self.le5.setValidator(QIntValidator())
self.le5.setText('10')
self.le5.setReadOnly(True)
self.toolbar5 = QToolBar()
self.toolbar5.addWidget(self.l5)
self.toolbar5.addWidget(self.le5)
# TreeView
self.treeview = QTreeView()
self.treeview.setAlternatingRowColors(True)
self.model = QStandardItemModel(self.treeview)
self.treeview.setModel(self.model)
self.treeview.setHeaderHidden(True)
# TextEdit
self.textedit = QTextEdit(self.widget)
self.textedit.setReadOnly(True)
# Layout
self.layout = QVBoxLayout()
self.layout.addWidget(self.toolbar0)
self.layout.addWidget(self.toolbar1)
self.layout.addWidget(self.toolbar2)
self.layout.addWidget(self.toolbar3)
self.layout.addWidget(self.toolbar4)
self.layout.addWidget(self.toolbar5)
self.layout.addWidget(self.toolbar)
self.layoutH = QHBoxLayout()
self.layoutH.addWidget(self.treeview)
self.layoutH.addWidget(self.textedit)
self.layout.addLayout(self.layoutH)
self.widget.setLayout(self.layout)
# Add the widget to the user interface
if context.serial_number() > 1:
self.widget.setWindowTitle(self.widget.windowTitle() +
(' (%d)' % context.serial_number()))
context.add_widget(self.widget)
# Make the connections
self.snapshot_action.triggered.connect(self.take_snapshot)
self.calibrate_action.triggered.connect(self.calibration)
self.clear_action.triggered.connect(self.clear)
self.execut_action.triggered.connect(self.execution)
# Package path
self.path_pkg = path_pkg
# Set up TF
self.cli = self.node.create_client(HandeyeTF, 'handeye_tf_service')
while not self.cli.wait_for_service(timeout_sec=1.0):
self.node.get_logger().info(
'service not available, waiting again...')
self.req = HandeyeTF.Request()
def clear(self):
# >>> Clear the recorded samples
self.textedit.append('Clearing the recorded data ...')
self.textedit.clear()
self.Tsamples = []
self.model.clear()
def get_tf_transform(self, frame_id, child_frame_id):
self.req.transform.header.frame_id = frame_id
self.req.transform.child_frame_id = child_frame_id
self.req.publish.data = False
future = self.cli.call_async(self.req)
rclpy.spin_until_future_complete(self.node, future)
transform = TransformStamped()
try:
result = future.result()
except Exception as e:
self.node.get_logger().info('Service call failed %r' % (e, ))
else:
transform = result.tf_lookup_result
return transform
def publish_tf_transform(self, transform_to_publish):
self.req.publish.data = True
self.req.transform = transform_to_publish
future = self.cli.call_async(self.req)
rclpy.spin_until_future_complete(self.node, future)
try:
future.result()
except Exception as e:
self.node.get_logger().info('Service call failed %r' % (e, ))
else:
self.node.get_logger().info(
'Send the camera-robot transform :\n\tfrom `{}` to `{}`.'.
format(self.req.transform.header.frame_id,
self.req.transform.child_frame_id))
def take_snapshot(self):
# >>> Take the snapshot
self.textedit.append('Taking snapshot ...')
# Get the transform from `tool0` to `base_link`
T = self.get_tf_transform(self.base_frame.text(),
self.endeffector_frame.text())
bTe = np.zeros((4, 4))
q = [
T.transform.rotation.w, T.transform.rotation.x,
T.transform.rotation.y, T.transform.rotation.z
]
bTe = br.quaternion.to_transform(q)
bTe[:3, 3] = np.array([
T.transform.translation.x, T.transform.translation.y,
T.transform.translation.z
])
self.textedit.append('Lookup transform: from `{}` to `{}`.'.format(
self.base_frame.text(), self.endeffector_frame.text()))
self.node.get_logger().info(bcolors.OKGREEN + 'bTe:' + bcolors.ENDC +
'\n{}'.format(bTe))
# Get the transform from `calib_board` to `camera_link`
T = self.get_tf_transform(self.camera_frame.text(),
self.object_frame.text())
cTo = np.zeros((4, 4))
q = [
T.transform.rotation.w, T.transform.rotation.x,
T.transform.rotation.y, T.transform.rotation.z
]
cTo = br.quaternion.to_transform(q)
cTo[:3, 3] = np.array([
T.transform.translation.x, T.transform.translation.y,
T.transform.translation.z
])
self.textedit.append('Lookup transform: from `{}` to `{}`.'.format(
self.camera_frame.text(), self.object_frame.text()))
self.node.get_logger().info(bcolors.OKGREEN + 'cTo:' + bcolors.ENDC +
'\n{}'.format(cTo))
parent = QStandardItem('Snapshot {}'.format(len(self.Tsamples)))
child_1 = QStandardItem('bTe:\n{}\n{}\n{}\n{}'.format(
bTe[0, :], bTe[1, :], bTe[2, :], bTe[3, :]))
child_2 = QStandardItem('cTo:\n{}\n{}\n{}\n{}'.format(
cTo[0, :], cTo[1, :], cTo[2, :], cTo[3, :]))
parent.appendRow(child_1)
parent.appendRow(child_2)
self.model.appendRow(parent)
self.Tsamples.append((bTe, cTo))
self.le5.setText(str(len(self.Tsamples)))
def calibration(self):
# >>> Compute the calibration
self.textedit.append('Making the calibration ...')
if len(self.Tsamples) == 0:
self.textedit.append(
'No transform recorded, please take snapshots.')
return
# save samples to `dataset.json` file
save_samples_to_file(self.Tsamples)
import handeye
if self.combobox.currentIndex() == 0:
solver_cri = handeye.calibrator.HandEyeCalibrator(setup='Moving')
if self.combobox.currentIndex() == 1:
solver_cri = handeye.calibrator.HandEyeCalibrator(setup='Fixed')
for sample in self.Tsamples:
solver_cri.add_sample(sample[0], sample[1])
try:
bTc = solver_cri.solve(method=handeye.solver.Daniilidis1999)
# save the calibration result to 'camera-robot.json' file
file_output = '/tmp/' + 'camera-robot.json'
with open(file_output, 'w') as f:
json.dump(bTc.tolist(), f)
except Exception:
self.textedit.append("Failed to solve the hand-eye calibration.")
def execution(self):
# >>> Publish the camera-robot transform
self.textedit.append('Publishing the camera TF ...')
file_input = '/tmp/' + 'camera-robot.json'
with open(file_input, 'r') as f:
datastore = json.load(f)
to_frame = self.camera_frame.text()
if self.combobox.currentIndex() == 0:
from_frame = self.endeffector_frame.text()
if self.combobox.currentIndex() == 1:
from_frame = self.base_frame.text()
bTc = np.array(datastore)
static_transformStamped = TransformStamped()
static_transformStamped.header.stamp = ROSClock().now().to_msg()
static_transformStamped.header.frame_id = from_frame
static_transformStamped.child_frame_id = to_frame
static_transformStamped.transform.translation.x = bTc[0, 3]
static_transformStamped.transform.translation.y = bTc[1, 3]
static_transformStamped.transform.translation.z = bTc[2, 3]
q = br.transform.to_quaternion(bTc)
static_transformStamped.transform.rotation.x = q[1]
static_transformStamped.transform.rotation.y = q[2]
static_transformStamped.transform.rotation.z = q[3]
static_transformStamped.transform.rotation.w = q[0]
self.publish_tf_transform(static_transformStamped)
output_string = "camera-robot pose:\n"
output_string += " Translation: [{}, {}, {}]\n".format(
bTc[0, 3], bTc[1, 3], bTc[2, 3])
output_string += " Rotation: in Quaternion [{}, {}, {}, {}]".format(
q[0], q[1], q[2], q[3])
file_path = '/tmp/' + 'camera-robot.txt'
with open(file_path, 'w') as f:
f.write(output_string)
def shutdown_plugin(self):
"""
Unregister subscribers when the plugin shutdown
"""
pass
def save_settings(self, plugin_settings, instance_settings):
# Nothing to be done here
pass
def restore_settings(self, plugin_settings, instance_settings):
# Nothing to be done here
pass
class Dashboard(Plugin):
"""
Base class from which dashboards should inherit.
:param context: the plugin context
:type context: qt_gui.plugin.Plugin
"""
def __init__(self, context):
super(Dashboard, self).__init__(context)
self.context = context
self.setup(context)
if not hasattr(self, 'name'):
self.name = 'Dashboard'
if not hasattr(self, 'max_icon_size'):
self.max_icon_size = QSize(50, 30)
self._main_widget = QToolBar()
self._main_widget.setIconSize(self.max_icon_size)
self._main_widget.setObjectName(self.name)
self._main_widget.setWindowTitle(self.name)
if context.serial_number() > 1:
self._main_widget.setWindowTitle(self._main_widget.windowTitle() + (' (%d)' % context.serial_number()))
# Convert list of widgets into layout
self.add_widgets()
# Display the dashboard
context.add_toolbar(self._main_widget)
def setup(self, context):
"""
Called during ``__init__`` Subclasses should do initialization here.
NOTE when overriding this method you should provide a ``self.name`` to
avoid naming conflicts.
:param context: The plugin context
:type context: qt_gui.plugin.Plugin
"""
pass
def shutdown_plugin(self):
"""
Called when the toolbar is closed by Qt.
"""
for widget in self._widgets:
if hasattr(widget, 'shutdown_widget'):
widget.shutdown_widget()
if hasattr(widget, 'close'):
widget.close()
self.shutdown_dashboard()
def shutdown_dashboard(self):
"""
Called after shutdown plugin, subclasses should do cleanup here, not in shutdown_plugin
"""
pass
def get_widgets(self):
"""
Most of the dashboard customization should be done here.
If this function is not overriden the dashboard will display nothing.
:returns: List of lists containing dashboard widgets, or list of lists
containing a string followed by a list of dashboard widgets.
"""
return []
def add_widgets(self):
"""
Add groups of widgets to _main_widget. Supports group labels.
This method can be reimplemented in order to customize appearances.
"""
widgets = self.get_widgets()
self._widgets = [] # stores widgets which may need to be shut down when done
for group in widgets:
# Check for group label
if isinstance(group[0], str):
grouplabel, v = group
box = QGroupBox(grouplabel)
box.setContentsMargins(0, 18, 0, 0) # LTRB
# Apply the center-label directive only for single-icon groups
if len(group[1]) == 1:
box.setAlignment(Qt.AlignHCenter)
else:
box = QGroupBox()
box.setContentsMargins(0, 0, 0, 0) # LTRB
v = group
# Add widgets to QGroupBox
layout = QHBoxLayout()
layout.setSpacing(0)
layout.setContentsMargins(0, 0, 0, 0) # LTRB
for i in v:
try:
try:
i.setIconSize(self.max_icon_size) # without this, icons are tiny
except AttributeError as e:
# triggers with battery which uses a QLabel instead of a QToolButton-based widget
pass
layout.addWidget(i)
self._widgets.append(i)
except:
raise Exception("All widgets must be a subclass of QWidget!")
layout.activate()
box.setLayout(layout)
self._main_widget.addWidget(box)
self._main_widget.addSeparator()
class Top(Plugin):
NODE_FIELDS = [ 'pid', 'get_cpu_percent', 'get_memory_percent', 'get_num_threads']
OUT_FIELDS = ['node_name', 'pid', 'cpu_percent', 'memory_percent', 'num_threads' ]
FORMAT_STRS = ['%s', '%s', '%0.2f', '%0.2f', '%s' ]
NODE_LABELS = ['Node', 'PID', 'CPU %', 'Mem %', 'Num Threads' ]
SORT_TYPE = [str, str, float, float, float ]
TOOLTIPS = {
0: ('cmdline', lambda x: '\n'.join(textwrap.wrap(' '.join(x)))),
3: ('memory_info', lambda x: ('Resident: %0.2f MiB, Virtual: %0.2f MiB' % (x[0]/2**20, x[1]/2**20)))
}
_node_info = NodeInfo()
name_filter = re.compile('')
def __init__(self, context):
super(Top, self).__init__(context)
# Give QObjects reasonable names
self.setObjectName('Top')
# Process standalone plugin command-line arguments
from argparse import ArgumentParser
parser = ArgumentParser()
# Add argument(s) to the parser.
parser.add_argument("-q", "--quiet", action="store_true",
dest="quiet",
help="Put plugin in silent mode")
args, unknowns = parser.parse_known_args(context.argv())
# if not args.quiet:
# print 'arguments: ', args
# print 'unknowns: ', unknowns
self._selected_node = ''
self._selected_node_lock = RLock()
# Setup the toolbar
self._toolbar = QToolBar()
self._filter_box = QLineEdit()
self._regex_box = QCheckBox()
self._regex_box.setText('regex')
self._toolbar.addWidget(QLabel('Filter'))
self._toolbar.addWidget(self._filter_box)
self._toolbar.addWidget(self._regex_box)
self._filter_box.returnPressed.connect(self.update_filter)
self._regex_box.stateChanged.connect(self.update_filter)
# Create a container widget and give it a layout
self._container = QWidget()
self._container.setWindowTitle('Process Monitor')
self._layout = QVBoxLayout()
self._container.setLayout(self._layout)
self._layout.addWidget(self._toolbar)
# Create the table widget
self._table_widget = QTreeWidget()
self._table_widget.setObjectName('TopTable')
self._table_widget.setColumnCount(len(self.NODE_LABELS))
self._table_widget.setHeaderLabels(self.NODE_LABELS)
self._table_widget.itemClicked.connect(self._tableItemClicked)
self._table_widget.setSortingEnabled(True)
self._table_widget.setAlternatingRowColors(True)
self._layout.addWidget(self._table_widget)
context.add_widget(self._container)
# Add a button for killing nodes
self._kill_button = QPushButton('Kill Node')
self._layout.addWidget(self._kill_button)
self._kill_button.clicked.connect(self._kill_node)
# Update twice since the first cpu% lookup will always return 0
self.update_table()
self.update_table()
self._table_widget.resizeColumnToContents(0)
# Start a timer to trigger updates
self._update_timer = QTimer()
self._update_timer.setInterval(1000)
self._update_timer.timeout.connect(self.update_table)
self._update_timer.start()
def _tableItemClicked(self, item, column):
with self._selected_node_lock:
self._selected_node = item.text(0)
def update_filter(self, *args):
if self._regex_box.isChecked():
expr = self._filter_box.text()
else:
expr = re.escape(self._filter_box.text())
self.name_filter = re.compile(expr)
self.update_table()
def _kill_node(self):
self._node_info.kill_node(self._selected_node)
def update_one_item(self, row, info):
twi = TopWidgetItem()
for col, field in enumerate(self.OUT_FIELDS):
val = info[field]
twi.setText(col, self.FORMAT_STRS[col] % val)
self._table_widget.insertTopLevelItem(row, twi)
for col, (key, func) in self.TOOLTIPS.items():
twi.setToolTip(col, func(info[key]))
with self._selected_node_lock:
if twi.text(0) == self._selected_node:
twi.setSelected(True)
twi.setHidden(len(self.name_filter.findall(info['node_name'])) == 0)
def update_table(self):
self._table_widget.clear()
infos = self._node_info.get_all_node_fields(self.NODE_FIELDS)
for nx, info in enumerate(infos):
self.update_one_item(nx, info)
def shutdown_plugin(self):
self._update_timer.stop()
def save_settings(self, plugin_settings, instance_settings):
instance_settings.set_value('filter_text', self._filter_box.text())
instance_settings.set_value('is_regex', int(self._regex_box.checkState()))
def restore_settings(self, plugin_settings, instance_settings):
self._filter_box.setText(instance_settings.value('filter_text'))
is_regex_int = instance_settings.value('is_regex')
if is_regex_int:
self._regex_box.setCheckState(Qt.CheckState(is_regex_int))
else:
self._regex_box.setCheckState(Qt.CheckState(0))
self.update_filter()