wxPython的树CTRL图像

好吧，我这里有一个例子：wxPython的树CTRL图像

可运行实例

解压zip文件，然后运行否则它不会在所有

工作然而，当运行图像将不会被添加到那里树CTRL，它只会是错误。

代码（注意将不无图像运行，见上面的zip文件）

import wx 

class TestFrame(wx.Frame): 

    def __init__(self): 
     wx.Frame.__init__(self, None, -1) 

     self.tree = wx.TreeCtrl(self, style = wx.TR_HIDE_ROOT) 
     self.root = self.tree.AddRoot("") 

     gr = self.tree.AppendItem(self.root, "Grooveshark") 
     pop_r = self.tree.AppendItem(gr, "Popular") 
     sr = self.tree.AppendItem(gr, "Search") 

     dr = self.tree.AppendItem(self.root, "Download") 

     pr = self.tree.AppendItem(self.root, "Pandora") 
     stat_r = self.tree.AppendItem(pr, "Stations") 

     image_list = wx.ImageList(16, 16) 
     grooveshark = image_list.Add(wx.Image("images/grooveshark (Custom).png", wx.BITMAP_TYPE_PNG).ConvertToBitmap()) 
     popular  = image_list.Add(wx.Image("images/popular (Custom).png", wx.BITMAP_TYPE_PNG).ConvertToBitmap()) 
     search  = image_list.Add(wx.Image("images/search (Custom).png", wx.BITMAP_TYPE_PNG).ConvertToBitmap()) 
     download = image_list.Add(wx.Image("images/download (Custom).png", wx.BITMAP_TYPE_PNG).ConvertToBitmap()) 
     pandora  = image_list.Add(wx.Image("images/playlist_icon (Custom).png", wx.BITMAP_TYPE_PNG).ConvertToBitmap()) 
     stations = image_list.Add(wx.Image("images/stations (Custom).png", wx.BITMAP_TYPE_PNG).ConvertToBitmap()) 

     self.tree.SetPyData(gr, None) 
     self.tree.SetItemImage(gr, grooveshark, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(pop_r, None) 
     self.tree.SetItemImage(pop_r, popular, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(sr, None) 
     self.tree.SetItemImage(sr, search, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(dr, None) 
     self.tree.SetItemImage(dr, download, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(pr, None) 
     self.tree.SetItemImage(pr, pandora, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(stat_r, None) 
     self.tree.SetItemImage(stat_r, stations, wx.TreeItemIcon_Normal) 


if __name__ == "__main__": 
    a = wx.App(False) 

    f = TestFrame() 
    f.Show() 
    a.MainLoop()

为什么？

我按照wxPython演示程序中的演示，没有运气。

来源

2011-11-13 Zimm3r

您的代码似乎缺少。 – brc

它包含图像，所以它是在一个ZIP文件，否则将没有意义，因为没有图像的代码将不会运行 – Zimm3r

然而，你应该尝试在这里发布一个样本，因为很多问题可以发现，而没有实际运行代码。大多数人不会下载和解压缩代码，以帮助您找出问题所在。 – brc

您的代码有两个问题。

您的图片并非所有的都是16像素X 16像素，而是你正尝试将它们添加到应该只包含16×16幅图像列表。要解决这个问题，你应该把它们缩放到16 x 16，然后再添加到列表中。
在将图像应用到树项目之前，应该将图像列表分配给树对象。

这里是固定码：

import wx 

class TestFrame(wx.Frame): 

    def __init__(self): 
     wx.Frame.__init__(self, None, -1) 

     self.tree = wx.TreeCtrl(self, style = wx.TR_HIDE_ROOT) 
     self.root = self.tree.AddRoot("") 

     gr = self.tree.AppendItem(self.root, "Grooveshark") 
     pop_r = self.tree.AppendItem(gr, "Popular") 
     sr = self.tree.AppendItem(gr, "Search") 

     dr = self.tree.AppendItem(self.root, "Download") 

     pr = self.tree.AppendItem(self.root, "Pandora") 
     stat_r = self.tree.AppendItem(pr, "Stations") 

     image_list = wx.ImageList(16, 16) 
     grooveshark = image_list.Add(wx.Image("images/grooveshark (Custom).png", wx.BITMAP_TYPE_PNG).Scale(16,16).ConvertToBitmap()) 
     popular  = image_list.Add(wx.Image("images/popular (Custom).png", wx.BITMAP_TYPE_PNG).Scale(16,16).ConvertToBitmap()) 
     search  = image_list.Add(wx.Image("images/search (Custom).png", wx.BITMAP_TYPE_PNG).Scale(16,16).ConvertToBitmap()) 
     download = image_list.Add(wx.Image("images/download (Custom).png", wx.BITMAP_TYPE_PNG).Scale(16,16).ConvertToBitmap()) 
     pandora  = image_list.Add(wx.Image("images/playlist_icon (Custom).png", wx.BITMAP_TYPE_PNG).Scale(16,16).ConvertToBitmap()) 
     stations = image_list.Add(wx.Image("images/stations (Custom).png", wx.BITMAP_TYPE_PNG).Scale(16,16).ConvertToBitmap()) 

     self.tree.AssignImageList(image_list) 

     self.tree.SetPyData(gr, None) 
     self.tree.SetItemImage(gr, grooveshark, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(pop_r, None) 
     self.tree.SetItemImage(pop_r, popular, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(sr, None) 
     self.tree.SetItemImage(sr, search, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(dr, None) 
     self.tree.SetItemImage(dr, download, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(pr, None) 
     self.tree.SetItemImage(pr, pandora, wx.TreeItemIcon_Normal) 
     self.tree.SetPyData(stat_r, None) 
     self.tree.SetItemImage(stat_r, stations, wx.TreeItemIcon_Normal) 


if __name__ == "__main__": 
    a = wx.App(False) 

    f = TestFrame() 
    f.Show() 
    a.MainLoop()

来源

2011-11-13 21:53:04 Vader

wxPython的树CTRL图像

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