3 from PyQt4.QtCore import *
4 from PyQt4.QtGui import *
6 from sfa.util.rspecHelper import RSpec
7 from sface.sfahelper import *
8 from sface.sficonfig import config
9 from sface.sfiprocess import SfiProcess
10 from sface.screens.sfascreen import SfaScreen
12 class NodeView(QTreeView):
13 def __init__(self, parent):
14 QTreeView.__init__(self, parent)
16 self.setItemsExpandable(True)
17 self.setRootIsDecorated(False)
18 self.setAlternatingRowColors(True)
19 self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
22 def __init__(self, data, parent=None):
23 self.parentItem = parent
28 print "TODO: TreeItem.clear()"
29 for child in self.childItems:
35 def appendChild(self, child):
36 self.childItems.append(child)
39 return self.childItems[row]
42 return len(self.childItems)
44 def columnCount(self):
45 return len(self.itemData)
47 def data(self, column):
48 return self.itemData[column]
53 return self.parentItem.childItems.index(self)
59 return self.parentItem
63 class NodeModel(QAbstractItemModel):
64 def __init__(self, parent):
65 QAbstractItemModel.__init__(self, parent)
73 self.rootItem = TreeItem([QString("Testbed"), QString("Hostname")])
75 def columnCount(self, parent):
77 return parent.internalPointer().columnCount()
79 return self.rootItem.columnCount()
81 def data(self, index, role):
82 if not index.isValid():
85 if role != Qt.DisplayRole:
88 item = index.internalPointer()
89 return item.data(index.column())
91 def headerData(self, section, orientation, role):
92 if orientation == Qt.Horizontal and role == Qt.DisplayRole:
93 return self.rootItem.data(section)
96 def index(self, row, column, parent):
97 if not self.hasIndex(row, column, parent):
101 if not parent.isValid():
102 parentItem = self.rootItem
104 parentItem = parent.internalPointer()
106 childItem = parentItem.child(row)
108 return self.createIndex(row, column, childItem)
112 def parent(self, index):
113 if not index.isValid():
116 childItem = index.internalPointer()
117 parentItem = childItem.parent()
122 if parentItem is self.rootItem:
125 return self.createIndex(parentItem.row(), 0, parentItem)
127 def rowCount(self, parent):
128 if parent.column() > 0:
132 if not parent.isValid():
133 parentItem = self.rootItem
135 parentItem = parent.internalPointer()
137 return parentItem.childCount()
140 class SliceWidget(QWidget):
141 def __init__(self, parent):
142 QWidget.__init__(self, parent)
144 self.nodeView = NodeView(self)
145 self.nodeModel = NodeModel(self)
146 self.nodeView.setModel(self.nodeModel)
148 refresh = QLabel("<a href='refresh'>Refresh</a>", self)
149 refresh.setScaledContents(False)
150 slicename = QLabel ("Slice : %s"%(config.getSlice() or "None"),self)
151 slicename.setScaledContents(False)
153 hlayout = QHBoxLayout()
154 hlayout.addWidget(slicename)
156 hlayout.addWidget(refresh)
158 layout = QVBoxLayout()
159 layout.addLayout(hlayout)
160 layout.addWidget(self.nodeView)
161 self.setLayout(layout)
162 self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
164 self.connect(refresh, SIGNAL('linkActivated(QString)'), self.refresh)
166 rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
167 if os.path.exists(rspec_file):
170 def readSliceRSpec(self):
171 rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
172 xml = open(rspec_file).read()
175 def refresh(self, link=None):
176 if not config.getSlice():
177 self.parent().setStatus("<font color='red'>Slice not set yet!</font>")
180 self.process = SfiProcess()
181 outfile = self.process.getRSpecFromSM()
182 self.parent().setStatus("Updating slice data. This may take some time...")
184 self.connect(self.process, SIGNAL('finished()'), self.refreshFinished)
186 def refreshFinished(self):
188 self.parent().setStatus("<font color='green'>Slice data updated.</font>")
191 def updateView(self):
192 rspec_string = self.readSliceRSpec()
193 networks = rspec_get_networks(rspec_string)
195 for network in networks:
196 networkItem = TreeItem([QString(network), QString("")], self.nodeModel.rootItem)
198 all_nodes = rspec_get_nodes_from_network(rspec_string, network)
199 for node in all_nodes:
200 nodeItem = TreeItem([QString(""), QString(node)], networkItem)
201 networkItem.appendChild(nodeItem)
203 self.nodeModel.rootItem.appendChild(networkItem)
205 self.nodeView.expandAll()
208 class MainScreen(SfaScreen):
209 def __init__(self, parent):
210 SfaScreen.__init__(self, parent)
212 slice = SliceWidget(self)
213 self.init(slice, "Main Window", "PlanetLab Federation GUI")