implement itemdelegate to colorize selected nodes
[sface.git] / sface / screens / mainscreen.py
index 2b8b88f..32d9849 100644 (file)
@@ -14,9 +14,33 @@ class NodeView(QTreeView):
         QTreeView.__init__(self, parent)
 
         self.setItemsExpandable(True)
-        self.setRootIsDecorated(False)
+        self.setRootIsDecorated(True)
         self.setAlternatingRowColors(True)
         self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
+        self.setAttribute(Qt.WA_MacShowFocusRect, 0)
+
+class ItemDelegate(QStyledItemDelegate):
+    def __init__(self, parent):
+        QStyledItemDelegate.__init__(self)
+
+    def paint(self, painter, option, index):
+        data = "%s" % index.data().toString()
+
+        if data.startswith("*"): # already in the sliver
+            data = " %s " % data[1:]
+
+            rect = option.rect
+            fm = QFontMetrics(option.font)
+            w = fm.width(QString(data))
+            rect.setWidth(w)
+
+            painter.save()
+            painter.fillRect(rect, QColor.fromRgb(0, 250, 0))
+            painter.setPen(QColor.fromRgb(0, 0, 0))
+            painter.drawText(option.rect, 0, QString(data))
+            painter.restore()
+        else: # others, fall back to default view
+            QStyledItemDelegate.paint(self, painter, option, index)
 
 class TreeItem:
     def __init__(self, data, parent=None):
@@ -24,6 +48,13 @@ class TreeItem:
         self.itemData = data
         self.childItems = []
 
+    def clear(self):
+        for child in self.childItems:
+            child.clear()
+            del child
+        del self.childItems
+        self.childItems = []
+
     def appendChild(self, child):
         self.childItems.append(child)
 
@@ -34,7 +65,6 @@ class TreeItem:
         return len(self.childItems)
 
     def columnCount(self):
-        print len(self.itemData)
         return len(self.itemData)
 
     def data(self, column):
@@ -42,9 +72,11 @@ class TreeItem:
 
     def row(self):
         if (self.parentItem):
-            for i in self.parentItem.childItems:
-                if i is self:
-                    return i
+            try:
+                return self.parentItem.childItems.index(self)
+            except ValueError:
+                return 0
+        return 0
     
     def parent(self):
         return self.parentItem
@@ -54,17 +86,19 @@ class TreeItem:
 class NodeModel(QAbstractItemModel):
     def __init__(self, parent):
         QAbstractItemModel.__init__(self, parent)
-        self.rootItem = TreeItem([QString("Testbed"), QString("Hostname")])
+        self.__initRoot()
+
+    def clear(self):
+        self.rootItem.clear()
+        self.__initRoot()
 
-    def addToRoot(self, item):
-        self.rootItem.appendChild(item)
+    def __initRoot(self):
+        self.rootItem = TreeItem([QString("Testbed"), QString("Hostname"), QString("Selected")])
 
     def columnCount(self, parent):
         if parent.isValid():
-            print "toto"
-            parent.internalPointer().columnCount()
+            return parent.internalPointer().columnCount()
         else:
-            print "lala"
             return self.rootItem.columnCount()
 
     def data(self, index, role):
@@ -82,6 +116,11 @@ class NodeModel(QAbstractItemModel):
             return self.rootItem.data(section)
         return QVariant()
 
+    def flags(self, index):
+        if not index.isValid():
+            return 0
+        return Qt.ItemIsEnabled | Qt.ItemIsSelectable # | Qt.ItemIsEditable
+
     def index(self, row, column, parent):
         if not self.hasIndex(row, column, parent):
             return QModelIndex()
@@ -108,10 +147,10 @@ class NodeModel(QAbstractItemModel):
         if not parentItem:
             return QModelIndex()
 
-        if parentItem == self.rootItem:
+        if parentItem is self.rootItem:
             return QModelIndex()
 
-        return self.createIndex(parentItem.row(), 0, parentItem);
+        return self.createIndex(parentItem.row(), 0, parentItem)
 
     def rowCount(self, parent):
         if parent.column() > 0:
@@ -130,11 +169,7 @@ class SliceWidget(QWidget):
     def __init__(self, parent):
         QWidget.__init__(self, parent)
 
-        self.nodeView = NodeView(self)
-        self.nodeModel = NodeModel(self)
-        self.nodeView.setModel(self.nodeModel)
-
-        refresh = QLabel("<a href='refresh'>Refresh</a>", self)
+        refresh = QLabel("<a href='refresh'>Update Slice Data</a>", self)
         refresh.setScaledContents(False)
         slicename = QLabel ("Slice : %s"%(config.getSlice() or "None"),self)
         slicename.setScaledContents(False)
@@ -144,52 +179,78 @@ class SliceWidget(QWidget):
         hlayout.addStretch()
         hlayout.addWidget(refresh)
 
+        self.nodeView = NodeView(self)
+        self.nodeModel = NodeModel(self)
+        self.nodeView.setModel(self.nodeModel)
+
+        submit = QPushButton("Submit", self)
+        submit.setSizePolicy(QSizePolicy.Maximum, QSizePolicy.Maximum)
+
         layout = QVBoxLayout()
         layout.addLayout(hlayout)
         layout.addWidget(self.nodeView)
+        layout.addWidget(submit, 0, Qt.AlignRight)
         self.setLayout(layout)
         self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 
         self.connect(refresh, SIGNAL('linkActivated(QString)'), self.refresh)
+        self.connect(submit, SIGNAL('clicked()'), self.submit)
 
         rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
         if os.path.exists(rspec_file):
             self.updateView()
+
+    def submit(self):
+        self.parent().setStatus("TODO: Submit not implemented yet!", 3000)
         
     def readSliceRSpec(self):
-        rspec_file = os.path.expanduser("~/.sfi/%s.rspec" % config.getSlice())
+        rspec_file = config.getSliceRSpecFile()
         xml = open(rspec_file).read()
         return xml
 
     def refresh(self, link=None):
         if not config.getSlice():
-            self.parent().setStatus("<font color='red'>Slice not set yet!</font>")
+            self.parent().setStatus("<font color='red'>Slice not set yet!</font>", timeout=None)
             return
 
         self.process = SfiProcess()
         outfile = self.process.getRSpecFromSM()
-        self.parent().setStatus("Updating slice data. This may take some time...")
+        self.parent().setStatus("Updating slice data. This may take some time...", timeout=None)
         
         self.connect(self.process, SIGNAL('finished()'), self.refreshFinished)
 
     def refreshFinished(self):
         del self.process
-        self.parent().setStatus("<font color='green'>Slice data updated.</font>")
+        self.parent().setStatus("<font color='green'>Slice data updated.</font>", timeout=5000)
         self.updateView()
 
     def updateView(self):
+        self.nodeModel.clear()
         rspec_string = self.readSliceRSpec()
         networks = rspec_get_networks(rspec_string)
 
         for network in networks:
-            networkItem = TreeItem([QString(network), QString("")])
+            networkItem = TreeItem([QString(network), QString(""), QString("")], self.nodeModel.rootItem)
 
             all_nodes = rspec_get_nodes_from_network(rspec_string, network)
-            for node in all_nodes:
-                nodeItem = TreeItem([QString(""), QString(node)])
+            sliver_nodes = rspec_get_sliver_nodes_from_network(rspec_string, network)
+            available_nodes = filter(lambda x:x not in sliver_nodes, all_nodes)
+
+            for node in sliver_nodes:
+                nodeItem = TreeItem([QString(""), QString("*%s" % node), QString("Implement Checkbox")], networkItem)
                 networkItem.appendChild(nodeItem)
 
-            self.nodeModel.addToRoot(networkItem)
+            for node in available_nodes:
+                nodeItem = TreeItem([QString(""), QString(node), QString("Implement Checkbox")], networkItem)
+                networkItem.appendChild(nodeItem)
+
+            self.nodeModel.rootItem.appendChild(networkItem)
+
+        self.nodeView.expandAll()
+        self.nodeView.resizeColumnToContents(1)
+
+        self.delegate = ItemDelegate(self)
+        self.nodeView.setItemDelegateForColumn(1, self.delegate)
 
 
 class MainScreen(SfaScreen):
@@ -197,4 +258,4 @@ class MainScreen(SfaScreen):
         SfaScreen.__init__(self, parent)
 
         slice = SliceWidget(self)
-        self.init(slice, "Main Window", "PlanetLab Federation GUI")
+        self.init(slice, "Main Window", "OneLab Federation GUI")