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(True)
18 self.setAlternatingRowColors(True)
19 self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
20 self.setAttribute(Qt.WA_MacShowFocusRect, 0)
23 def __init__(self, data, parent=None):
24 self.parentItem = parent
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 flags(self, index):
97 if not index.isValid():
99 return Qt.ItemIsEnabled | Qt.ItemIsSelectable
101 def index(self, row, column, parent):
102 if not self.hasIndex(row, column, parent):
106 if not parent.isValid():
107 parentItem = self.rootItem
109 parentItem = parent.internalPointer()
111 childItem = parentItem.child(row)
113 return self.createIndex(row, column, childItem)
117 def parent(self, index):
118 if not index.isValid():
121 childItem = index.internalPointer()
122 parentItem = childItem.parent()
127 if parentItem is self.rootItem:
130 return self.createIndex(parentItem.row(), 0, parentItem)
132 def rowCount(self, parent):
133 if parent.column() > 0:
137 if not parent.isValid():
138 parentItem = self.rootItem
140 parentItem = parent.internalPointer()
142 return parentItem.childCount()
145 class SliceWidget(QWidget):
146 def __init__(self, parent):
147 QWidget.__init__(self, parent)
149 self.nodeView = NodeView(self)
150 self.nodeModel = NodeModel(self)
151 self.nodeView.setModel(self.nodeModel)
153 refresh = QLabel("<a href='refresh'>Refresh</a>", self)
154 refresh.setScaledContents(False)
155 slicename = QLabel ("Slice : %s"%(config.getSlice() or "None"),self)
156 slicename.setScaledContents(False)
158 hlayout = QHBoxLayout()
159 hlayout.addWidget(slicename)
161 hlayout.addWidget(refresh)
163 layout = QVBoxLayout()
164 layout.addLayout(hlayout)
165 layout.addWidget(self.nodeView)
166 self.setLayout(layout)
167 self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
169 self.connect(refresh, SIGNAL('linkActivated(QString)'), self.refresh)
171 rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
172 if os.path.exists(rspec_file):
175 def readSliceRSpec(self):
176 rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
177 xml = open(rspec_file).read()
180 def refresh(self, link=None):
181 if not config.getSlice():
182 self.parent().setStatus("<font color='red'>Slice not set yet!</font>")
185 self.process = SfiProcess()
186 outfile = self.process.getRSpecFromSM()
187 self.parent().setStatus("Updating slice data. This may take some time...")
189 self.connect(self.process, SIGNAL('finished()'), self.refreshFinished)
191 def refreshFinished(self):
193 self.parent().setStatus("<font color='green'>Slice data updated.</font>")
196 def updateView(self):
197 self.nodeModel.clear()
198 rspec_string = self.readSliceRSpec()
199 networks = rspec_get_networks(rspec_string)
201 for network in networks:
202 networkItem = TreeItem([QString(network), QString("")], self.nodeModel.rootItem)
204 all_nodes = rspec_get_nodes_from_network(rspec_string, network)
205 sliver_nodes = rspec_get_sliver_nodes_from_network(rspec_string, network)
206 available_nodes = filter(lambda x:x not in sliver_nodes, all_nodes)
208 for node in sliver_nodes:
209 nodeItem = TreeItem([QString(""), QString("%s (selected)" % node)], networkItem)
210 networkItem.appendChild(nodeItem)
212 for node in available_nodes:
213 nodeItem = TreeItem([QString(""), QString(node)], networkItem)
214 networkItem.appendChild(nodeItem)
216 self.nodeModel.rootItem.appendChild(networkItem)
218 self.nodeView.expandAll()
221 class MainScreen(SfaScreen):
222 def __init__(self, parent):
223 SfaScreen.__init__(self, parent)
225 slice = SliceWidget(self)
226 self.init(slice, "Main Window", "PlanetLab Federation GUI")