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1
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1 from PyQt4.QtCore import *
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2 from PyQt4.QtGui import *
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168
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3 from c3 import Visitor, astnodes
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1
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4
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165
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5 class AstModelBuilder:
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6 def __init__(self):
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168
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7 self.functionIco = QIcon(QPixmap('functionicon.png').scaled(32, 32))
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8 self.variableIco = QIcon(QPixmap('variableicon.png').scaled(32, 32))
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165
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9 self.visitor = Visitor(self.p1, self.p2)
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168
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10 self.model = QStandardItemModel()
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165
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11 def build(self, pkg):
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168
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12 self.model.clear()
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13 self.model.setHorizontalHeaderLabels(['Object', 'Type'])
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14 self.curItem = self.model.invisibleRootItem()
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165
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15 self.visitor.visit(pkg)
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16 def p1(self, node):
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168
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17 if type(node) is astnodes.Variable:
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18 i = QStandardItem(self.variableIco, str(node))
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19 elif type(node) is astnodes.Function:
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20 i = QStandardItem(self.functionIco, str(node))
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21 elif type(node) is astnodes.Package:
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22 i = QStandardItem(str(node))
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23 else:
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24 return
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165
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25 typ = str(node.typ) if hasattr(node, 'typ') else ''
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26 ti = QStandardItem(str(typ))
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27 ti.setData(node)
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28 i.setData(node)
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29 self.curItem.appendRow([i, ti])
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30 self.curItem = i
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31 def p2(self, node):
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168
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32 if type(node) in [astnodes.Variable, astnodes.Function, astnodes.Package]:
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33 self.curItem = self.curItem.parent()
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1
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34
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35 # The actual widget:
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36 class AstViewer(QTreeView):
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4
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37 sigNodeSelected = pyqtSignal(object)
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1
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38 def __init__(self, parent=None):
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39 super(AstViewer, self).__init__(parent)
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4
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40 self.clicked.connect(self.selectHandler)
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165
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41 self.modelBuilder = AstModelBuilder()
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168
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42 self.setModel(self.modelBuilder.model)
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1
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43
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44 def setAst(self, ast):
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45 """ Create a new model and add all ast elements to it """
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168
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46 self.modelBuilder.build(ast)
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47 self.expandAll()
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1
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48
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4
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49 def selectHandler(self, index):
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1
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50 if not index.isValid():
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51 return
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4
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52 model = self.model()
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53 item = model.itemFromIndex(index)
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54 node = item.data()
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55 self.sigNodeSelected.emit(node)
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1
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56
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57
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