implement itemdelegate to colorize selected nodes

[sface.git] / sface / screens / mainscreen.py

diff --git a/sface/screens/mainscreen.py b/sface/screens/mainscreen.py
index 96ec7ed..32d9849 100644 (file)
--- a/sface/screens/mainscreen.py
+++ b/sface/screens/mainscreen.py
@@ -19,6 +19,29 @@ class NodeView(QTreeView):
         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):
         self.parentItem = parent
@@ -70,7 +93,7 @@ class NodeModel(QAbstractItemModel):
         self.__initRoot()
 
     def __initRoot(self):
-        self.rootItem = TreeItem([QString("Testbed"), QString("Hostname")])
+        self.rootItem = TreeItem([QString("Testbed"), QString("Hostname"), QString("Selected")])
 
     def columnCount(self, parent):
         if parent.isValid():
@@ -96,7 +119,7 @@ class NodeModel(QAbstractItemModel):
     def flags(self, index):
         if not index.isValid():
             return 0
-        return Qt.ItemIsEnabled | Qt.ItemIsSelectable
+        return Qt.ItemIsEnabled | Qt.ItemIsSelectable # | Qt.ItemIsEditable
 
     def index(self, row, column, parent):
         if not self.hasIndex(row, column, parent):
@@ -146,7 +169,7 @@ class SliceWidget(QWidget):
     def __init__(self, parent):
         QWidget.__init__(self, parent)
 
-        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)
@@ -207,23 +230,27 @@ class SliceWidget(QWidget):
         networks = rspec_get_networks(rspec_string)
 
         for network in networks:
-            networkItem = TreeItem([QString(network), QString("")], self.nodeModel.rootItem)
+            networkItem = TreeItem([QString(network), QString(""), QString("")], self.nodeModel.rootItem)
 
             all_nodes = rspec_get_nodes_from_network(rspec_string, network)
             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 (selected)" % node)], networkItem)
+                nodeItem = TreeItem([QString(""), QString("*%s" % node), QString("Implement Checkbox")], networkItem)
                 networkItem.appendChild(nodeItem)
 
             for node in available_nodes:
-                nodeItem = TreeItem([QString(""), QString(node)], networkItem)
+                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):
@@ -231,4 +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")