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1 # Software License Agreement (BSD License) 2 # 3 # Copyright (c) 2012, Fraunhofer FKIE/US, Alexander Tiderko 4 # All rights reserved. 5 # 6 # Redistribution and use in source and binary forms, with or without 7 # modification, are permitted provided that the following conditions 8 # are met: 9 # 10 # * Redistributions of source code must retain the above copyright 11 # notice, this list of conditions and the following disclaimer. 12 # * Redistributions in binary form must reproduce the above 13 # copyright notice, this list of conditions and the following 14 # disclaimer in the documentation and/or other materials provided 15 # with the distribution. 16 # * Neither the name of Fraunhofer nor the names of its 17 # contributors may be used to endorse or promote products derived 18 # from this software without specific prior written permission. 19 # 20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 # COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 28 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 # POSSIBILITY OF SUCH DAMAGE. 32 33 from python_qt_binding.QtCore import QObject, Signal 34 import os 35 import threading 36 37 import rospy 38 39 from .common import get_packages 40 4143 ''' 44 A thread to list all available ROS packages and 45 publish there be sending a QT signal. 46 ''' 47 packages = Signal(dict) 48 ''' 49 @ivar: packages is a signal, which is emitted, if a list with ROS packages was 50 created {package : path}. 51 ''' 52 597961 ''' 62 ''' 63 try: 64 # fill the input fields 65 root_paths = [os.path.normpath(p) for p in os.getenv("ROS_PACKAGE_PATH").split(':')] 66 packages = {} 67 for p in root_paths: 68 ret = get_packages(p) 69 packages = dict(ret.items() + packages.items()) 70 self.packages.emit(packages) 71 except: 72 import traceback 73 formatted_lines = traceback.format_exc(1).splitlines() 74 print "Error while list packages:\n\t%s" % traceback.format_exc() 75 try: 76 rospy.logwarn("Error while list packages:\n\t%s", formatted_lines[-1]) 77 except: 78 pass
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