def create_button(text,
callback=None,
image_path=None,
size=(125, 150),
visible=True,
color_code='#1F1E24'):
"""Create a push button which the mock input device can register.
:param text:
Possible name of the button
:param callback:
The callback to attach to the button when pressed
:param image_path:
The name of the image file
:param size:
Default size of the button
:param visible:
Turn button invisible on the gui
:param color_code:
Possible background color of the button
:return:
A QPushButton object which contains the passed arguments
"""
qt_button = QPushButton()
if image_path:
qt_button.setStyleSheet(
create_image_button_css(get_image_path(image_path)))
else:
text = check_string(text)
qt_button.setStyleSheet(create_color_button_css(color_code))
qt_button.setText(text)
qt_button.setMinimumSize(QSize(*size))
if not visible:
qt_button.setVisible(False)
if callback:
qt_button.clicked.connect(callback)
return qt_button
class Dashboard(QWidget):
_scan_button_led = Signal(bool)
_cancel_button_led = Signal(bool)
def __init__(self):
super(Dashboard, self).__init__()
not_latched = False
# latched = True
self.publishers = py_trees_ros.utilities.Publishers([
('scan', "~scan", std_msgs.Empty, not_latched, 1),
('cancel', "~cancel", std_msgs.Empty, not_latched, 1),
])
self.scan_push_button = QPushButton("Scan")
self.scan_push_button.setStyleSheet("QPushButton { font-size: 30pt; }")
self.scan_push_button.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.scan_push_button.pressed.connect(
functools.partial(self.publish_button_message,
self.publishers.scan))
self.cancel_push_button = QPushButton("Cancel")
self.cancel_push_button.setStyleSheet(
"QPushButton { font-size: 30pt; }")
self.cancel_push_button.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.cancel_push_button.pressed.connect(
functools.partial(self.publish_button_message,
self.publishers.cancel))
self.led_strip_flashing = False
self.led_strip_on_count = 1
self.led_strip_colour = "grey"
self.led_strip_lock = threading.Lock()
self.led_strip_timer = QTimer()
self.led_strip_timer.timeout.connect(self.led_strip_timer_callback)
self.led_strip_label = QLabel("LED Strip")
self.led_strip_label.setAlignment(Qt.AlignCenter)
self.led_strip_label.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self.led_strip_label.setStyleSheet(
"background-color: %s; font-size: 30pt;" % self.led_strip_colour)
self.hbox_layout = QGridLayout(self)
self.hbox_layout.addWidget(self.scan_push_button)
self.hbox_layout.addWidget(self.cancel_push_button)
self.hbox_layout.addWidget(self.led_strip_label)
self.subscribers = py_trees_ros.utilities.Subscribers([
("report", "/tree/report", std_msgs.String,
self.reality_report_callback),
("led_strip", "/led_strip/display", std_msgs.String,
self.led_strip_display_callback)
])
self.led_strip_timer.start(500) # ms
def publish_button_message(self, publisher):
publisher.publish(std_msgs.Empty())
def reality_report_callback(self, msg):
if msg.data == "cancelling":
self.set_scanning_colour(False)
self.set_cancelling_colour(True)
self.cancel_push_button.setEnabled(True)
elif msg.data == "scanning":
self.set_scanning_colour(True)
self.set_cancelling_colour(False)
self.cancel_push_button.setEnabled(True)
else:
self.set_scanning_colour(False)
self.set_cancelling_colour(False)
self.cancel_push_button.setEnabled(False)
def set_cancelling_colour(self, val):
if val:
self.cancel_push_button.setStyleSheet(
"QPushButton { font-size: 30pt; background-color: red}")
else:
self.cancel_push_button.setStyleSheet(
"QPushButton { font-size: 30pt; }")
def set_scanning_colour(self, val):
if val:
self.scan_push_button.setStyleSheet(
"QPushButton { font-size: 30pt; background-color: green}")
else:
self.scan_push_button.setStyleSheet(
"QPushButton { font-size: 30pt; }")
def led_strip_display_callback(self, msg):
with self.led_strip_lock:
if not msg.data:
self.led_strip_colour = "grey"
self.led_strip_flashing = False
else:
self.led_strip_flashing = True
self.led_strip_colour = None
for colour in ["blue", "red", "green"]:
if colour in msg.data:
self.led_strip_colour = colour
break
if not self.led_strip_colour:
self.led_strip_colour = "pink"
rospy.loginfo(
"Dashboard: received unknown LED colour {0}, setting 'pink'"
.format(msg.data))
@Slot()
def led_strip_timer_callback(self):
with self.led_strip_lock:
if self.led_strip_flashing:
if self.led_strip_on_count > 0:
self.led_strip_on_count = 0
self.led_strip_label.setStyleSheet(
"background-color: none; font-size: 30pt;")
else:
self.led_strip_on_count += 1
self.led_strip_label.setStyleSheet(
"background-color: %s; font-size: 30pt;" %
self.led_strip_colour)
else: # solid
self.led_strip_on_count = 1
self.led_strip_label.setStyleSheet(
"background-color: %s; font-size: 30pt;" %
self.led_strip_colour)
