def add_item_to_conversation_view(self, msg, type=0):
label_msg = QLabel(msg)
label_msg.setWordWrap(True)
label_msg.setStyleSheet('font-size:10pt;')
inner_text_layout = QHBoxLayout()
horizonalSpacer1 = QSpacerItem(0, 0, QSizePolicy.MinimumExpanding,
QSizePolicy.MinimumExpanding)
if type == 0:
inner_text_layout.addWidget(label_msg)
inner_text_layout.addItem(horizonalSpacer1)
elif type == 1:
inner_text_layout.addItem(horizonalSpacer1)
inner_text_layout.addWidget(label_msg)
inner_layout = QVBoxLayout()
time_msg = QLabel(str(time.asctime(time.localtime(time.time()))))
time_msg.setStyleSheet('font-size:8pt;')
inner_layout.addItem(inner_text_layout)
inner_layout.addWidget(time_msg)
inner_layout.setSizeConstraint(QLayout.SetFixedSize)
outer_layout = QHBoxLayout()
horizonalSpacer2 = QSpacerItem(0, 0, QSizePolicy.MinimumExpanding,
QSizePolicy.MinimumExpanding)
if type == 0:
label_msg.setStyleSheet(
'background: #e5e5ea; padding: 6px; border-radius: 8px;')
time_msg.setAlignment(Qt.AlignLeft)
outer_layout.addItem(inner_layout)
outer_layout.addItem(horizonalSpacer2)
elif type == 1:
label_msg.setStyleSheet(
'background: #1d86f4; padding: 6px; border-radius: 8px; color:#fff;'
)
time_msg.setAlignment(Qt.AlignRight)
outer_layout.addItem(horizonalSpacer2)
outer_layout.addItem(inner_layout)
outer_layout.setSizeConstraint(QLayout.SetMinimumSize)
widget = QWidget()
widget.setLayout(outer_layout)
widget.resize(widget.sizeHint())
item = QListWidgetItem()
item.setSizeHint(widget.sizeHint())
self._widget.listWidget.addItem(item)
self._widget.listWidget.setItemWidget(item, widget)
self._widget.listWidget.scrollToBottom()
class StringLabelWidget(QWidget):
def __init__(self):
super(StringLabelWidget, self).__init__()
self.lock = Lock()
vbox = QVBoxLayout(self)
self.label = QLabel()
self.label.setAlignment(Qt.AlignLeft)
self.label.setSizePolicy(
QSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored))
font = QFont("Helvetica", 14)
self.label.setFont(font)
self.label.setWordWrap(True)
vbox.addWidget(self.label)
self.string_sub = None
self._string_topics = []
self._update_topic_timer = QTimer(self)
self._update_topic_timer.timeout.connect(self.updateTopics)
self._update_topic_timer.start(1000)
self._active_topic = None
# to update label visualization
self._dialog = LineEditDialog()
self._rosdata = None
self._start_time = rospy.get_time()
self._update_label_timer = QTimer(self)
self._update_label_timer.timeout.connect(self.updateLabel)
self._update_label_timer.start(40)
def trigger_configuration(self):
self._dialog.exec_()
self.setupSubscriber(self._dialog.value)
def updateLabel(self):
if not self._rosdata:
return
try:
_, data_y = self._rosdata.next()
except rqt_plot.rosplot.RosPlotException as e:
self._rosdata = None
return
if len(data_y) == 0:
return
latest = data_y[-1] # get latest data
# supports std_msgs/String as well as string data nested in rosmsg
if type(latest) == String:
self.string = latest.data
else:
self.string = latest
try:
self.label.setText(self.string)
except TypeError as e:
rospy.logwarn(e)
def updateTopics(self):
need_to_update = False
for (topic, topic_type) in rospy.get_published_topics():
msg = roslib.message.get_message_class(topic_type)
field_names = get_slot_type_field_names(msg, slot_type='string')
for field in field_names:
string_topic = topic + field
if string_topic not in self._string_topics:
self._string_topics.append(string_topic)
need_to_update = True
if need_to_update:
self._string_topics = sorted(self._string_topics)
self._dialog.combo_box.clear()
for topic in self._string_topics:
self._dialog.combo_box.addItem(topic)
if self._active_topic:
if self._active_topic not in self._string_topics:
self._string_topics.append(self._active_topic)
self._dialog.combo_box.addItem(self._active_topic)
self._dialog.combo_box.setCurrentIndex(
self._string_topics.index(self._active_topic))
def setupSubscriber(self, topic):
if not self._rosdata:
self._rosdata = ROSData(topic, self._start_time)
else:
if self._rosdata != topic:
self._rosdata.close()
self._rosdata = ROSData(topic, self._start_time)
else:
rospy.logwarn("%s is already subscribed", topic)
self._active_topic = topic
def onActivated(self, number):
self.setupSubscriber(self._string_topics[number])
def save_settings(self, plugin_settings, instance_settings):
if self._active_topic:
instance_settings.set_value("active_topic", self._active_topic)
def restore_settings(self, plugin_settings, instance_settings):
if instance_settings.value("active_topic"):
topic = instance_settings.value("active_topic")
self._dialog.combo_box.addItem(topic)
self.setupSubscriber(topic)