+class NodeView(QTreeView):
+ def __init__(self, parent):
+ QTreeView.__init__(self, parent)
+
+ self.setItemsExpandable(True)
+ 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:]
+
+ fm = QFontMetrics(option.font)
+ rect = option.rect
+ rect.setWidth(fm.width(QString(data)))
+ rect.setHeight(rect.height() - 2)
+ rect.setX(rect.x() + 1)
+ x, y, h, w = rect.x(), rect.y(), rect.height(), rect.width()
+
+ path = QPainterPath()
+ path.addRoundedRect(x, y, w, h, 4, 4)
+
+ painter.save()
+ painter.setRenderHint(QPainter.Antialiasing)
+ painter.drawRoundedRect(rect, 4, 4)
+ painter.fillPath(path, 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
+ 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)
+
+ def child(self, row):
+ return self.childItems[row]
+
+ def childCount(self):
+ return len(self.childItems)
+
+ def columnCount(self):
+ return len(self.itemData)
+
+ def data(self, column):
+ return self.itemData[column]
+
+ def row(self):
+ if (self.parentItem):
+ try:
+ return self.parentItem.childItems.index(self)
+ except ValueError:
+ return 0
+ return 0
+
+ def parent(self):
+ return self.parentItem
+
+
+
+class NodeModel(QAbstractItemModel):
+ def __init__(self, parent):
+ QAbstractItemModel.__init__(self, parent)
+ self.__initRoot()
+
+ def clear(self):
+ self.rootItem.clear()
+ self.__initRoot()
+
+ def __initRoot(self):
+ self.rootItem = TreeItem([QString("Testbed"), QString("Hostname"), QString("Selected")])
+
+ def columnCount(self, parent):
+ if parent.isValid():
+ return parent.internalPointer().columnCount()
+ else:
+ return self.rootItem.columnCount()
+
+ def data(self, index, role):
+ if not index.isValid():
+ return QVariant()
+
+ if role != Qt.DisplayRole:
+ return QVariant()
+
+ item = index.internalPointer()
+ return item.data(index.column())
+
+ def headerData(self, section, orientation, role):
+ if orientation == Qt.Horizontal and role == Qt.DisplayRole:
+ 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()
+
+ parentItem = None
+ if not parent.isValid():
+ parentItem = self.rootItem
+ else:
+ parentItem = parent.internalPointer()
+
+ childItem = parentItem.child(row)
+ if childItem:
+ return self.createIndex(row, column, childItem)
+ else:
+ return QModelIndex()
+
+ def parent(self, index):
+ if not index.isValid():
+ return QModelIndex()
+
+ childItem = index.internalPointer()
+ parentItem = childItem.parent()
+
+ if not parentItem:
+ return QModelIndex()
+
+ if parentItem is self.rootItem:
+ return QModelIndex()
+
+ return self.createIndex(parentItem.row(), 0, parentItem)
+
+ def rowCount(self, parent):
+ if parent.column() > 0:
+ return 0
+
+ parentItem = None
+ if not parent.isValid():
+ parentItem = self.rootItem
+ else:
+ parentItem = parent.internalPointer()
+
+ return parentItem.childCount()
+