Question

我正在进行树控制，需要弄清楚双击的来源。

代码：

def _initElementsOfTreePanel(self, panel):
    tree = wx.TreeCtrl(panel, -1, wx.Point(0, 0), wx.DefaultSize, wx.NO_BORDER | wx.TR_DEFAULT_STYLE)

    root = tree.AddRoot("Elements")
    items = []
    imglist = wx.ImageList(16, 16, True, 2)
    imglist.Add(wx.ArtProvider_GetBitmap(wx.ART_FOLDER, wx.ART_OTHER, wx.Size(16, 16)))
    imglist.Add(wx.ArtProvider_GetBitmap(wx.ART_NORMAL_FILE, wx.ART_OTHER, wx.Size(16, 16)))
    tree.AssignImageList(imglist)

# #        Create the element Tree (the left hand side panel). Places in it all the found functions 
    def appendSubitems(item, func_list, tree):
        print item
        for func in func_list:
            itemid = tree.AppendItem(item, func.__name__, 1)
            print"GUIFrame._initElementsofTreePanel, func:",func.__name__,"id:",itemid

#        print "TreeItemId:",
    appendSubitems(tree.AppendItem(root, "Input functions", 0), self._elemdisco.input_functions, tree) 
    appendSubitems(tree.AppendItem(root, "Processing functions", 0), self._elemdisco.processing_functions, tree)
    appendSubitems(tree.AppendItem(root, "Output functions", 0), self._elemdisco.output_functions, tree)
    appendSubitems(tree.AppendItem(root, "Other functions", 0), self._elemdisco.other_functions, tree)


    tree.ExpandAll()
    self.Bind(wx.EVT_TREE_ITEM_ACTIVATED, self._addNodeToSchema, self.treePanel.tree)

def _addNodeToSchema(self,event):
    print event.GetItem()

现在输出显示无论双击什么节点，它都会识别触发事件的同一项目。并且它对应于我知道我添加的任何项目的ID，并且没有根的ID。

任何人都知道如何获取树中对象的引用？我基本上想得到它的名字，但这个API不会让我：P

[编辑]：解决方案，但我认为这是一个框架错误。无论双击实际发生在何处，事件都没有理由返回相同的TreeItemID。

Answer 1

def _addNodeToSchema(self,event):
    pt = event.GetPoint()
    item, _ = self.treePanel.tree.HitTest(pt)
    if item:        
        print self.treePanel.tree.GetItemText(item) #this is the label of the node

显然必须得到点位置，并询问树有关在那个位置可以找到的任何元素:)不是非常OO，但我会接受它。

Answer 2

'''具有拖动事件的多项选择，显示被拖动的项目

def On_Drag(self,event):
    select = (self.custom_tree.GetSelections())
    for i in range(len(select)):
        print(self.custom_tree.GetItemText(select[i]))'''

wxpython wx.TreeCtrl，树的子项触发事件wx.EVT_TREE_ITEM_ACTIVATED？

2 个答案: