本文整理汇总了Python中python_qt_binding.QtGui.QWidget.update方法的典型用法代码示例。如果您正苦于以下问题：Python QWidget.update方法的具体用法？Python QWidget.update怎么用？Python QWidget.update使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类python_qt_binding.QtGui.QWidget的用法示例。
在下文中一共展示了QWidget.update方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: update
# 需要导入模块: from python_qt_binding.QtGui import QWidget [as 别名]
# 或者: from python_qt_binding.QtGui.QWidget import update [as 别名]
def update(self, *args):
# the +4 is used to compensate for the current line being bold.
width = self.fontMetrics().width(str(self.highest_line)) + 4
if self.width() != width:
self.setFixedWidth(width)
QWidget.update(self, *args)示例2: Battery_state
# 需要导入模块: from python_qt_binding.QtGui import QWidget [as 别名]
# 或者: from python_qt_binding.QtGui.QWidget import update [as 别名]
class Battery_state(Plugin):
max_x_vel = 0.4
max_ang_vel = 1.0
tar_x_vel = 0.0
tar_ang_vel = 0.0
cur_x_vel = 0.0
cur_ang_vel = 0.0
acc_x_vel = 0.1 #linear accelaration - meters/(time step)
acc_ang_vel = 0.1 #angular accelaration - rad/(time step)
def __init__(self, context):
super(Battery_state, self).__init__(context)
# Give QObjects reasonable names
self.setObjectName('Battery_state')
# 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._widget = QWidget()
ui_file = os.path.join(rospkg.RosPack().get_path('rqt_battery_state'), 'resource', 'qt_gui3.ui')
loadUi(ui_file, self._widget)
self._widget.setObjectName('qt_gui3')
if context.serial_number() > 0:
self._widget.setWindowTitle('Battery State')
# Add widget to the user interface
context.add_widget(self._widget)
self._update_timer = QTimer(self)
self._update_timer.timeout.connect(self._handle_update)
self._update_timer.start(1000)#time step
self.subscriber = rospy.Subscriber('/my_roomba/battery_state', BatteryState, self.subscriber_callback)
#self._publisher = rospy.Publisher('/cmd_vel', Twist)
def shutdown_plugin(self):
#self._publisher.unregister()
#self._publisher = None
pass
def save_settings(self, plugin_settings, instance_settings):
# TODO save intrinsic configuration, usually using:
# instance_settings.set_value(k, v)
pass
def restore_settings(self, plugin_settings, instance_settings):
# TODO restore intrinsic configuration, usually using:
# v = instance_settings.value(k)
pass
def _handle_update(self):
#print 'timer'
self._widget.update()
def subscriber_callback(self, msg):
voltage = msg.voltage
current = msg.current
f_capacity = msg.capacity
capacity = msg.charge
percentage = msg.percentage
charging = msg.power_supply_status
if math.isnan(percentage):
percentage = 0
if math.isnan(current):
current = 0
if math.isnan(f_capacity):
f_capacity = 0
if math.isnan(capacity):
capacity = 0
self._widget.label_voltage.setText('Voltage: ' + ('%.2f' % voltage) + ' V')
self._widget.label_current.setText('Current: ' + ('%.2f' % current) + ' A')
self._widget.label_f_capacity.setText('Full capacity: ' + ('%.2f' % f_capacity) + ' A*h')
self._widget.label_capacity.setText('Capacity: ' + ('%.2f' % capacity) + ' A*h')
self._widget.progressBar.setValue(int(percentage))
if (charging == 0):
self._widget.label_charge.setText('Charging: N/A')
elif (charging == 1):
self._widget.label_charge.setText('Charging: Charge')
elif (charging == 2):
self._widget.label_charge.setText('Charging: Discharge')
elif (charging == 3):
self._widget.label_charge.setText('Charging: Not charging')
elif (charging == 4):
self._widget.label_charge.setText('Charging: Full')
else:
self._widget.label_charge.setText('Charging: N/A')