Python - 帮助自定义 wx.Python (pyDev) 类

Question

我在这个程序上遇到了瓶颈。我想创建一个类，能够在按钮使用时控制它的BIP（可能是指某种状态或效果）。到目前为止，我写的代码是这样的（见下文）。但是它一直报一个奇怪的错误 TypeError: 'module' object is not callable。我之前用C++和C#写过代码（感觉用 #include... 这种方式简单多了），但我对这个错误完全不懂，谷歌也没能帮到我……我知道我需要一些真正的帮助，特别是在语法方面，任何建议都很有用。我知道这个问题有很多人问过，我非常感激任何帮助！

注意：基础代码可以在这里找到，用来创建这个“自定义按钮类”的框架。

自定义按钮

import wx
from wxPython.wx import *

class Custom_Button(wx.PyControl):

                                    # The BMP's
# AM I DOING THIS RIGHT? - I am trying to get empty 'global' 
# variables within the class
    Mouse_over_bmp = None #wxEmptyBitmap(1,1,1)   # When the mouse is over
    Norm_bmp = None #wxEmptyBitmap(1,1,1)         # The normal BMP
    Push_bmp = None #wxEmptyBitmap(1,1,1)         # The down BMP

    Pos_bmp = wx.Point(0,0)         # The posisition of the button

    def __init__(self, parent, NORM_BMP, PUSH_BMP, MOUSE_OVER_BMP,
                 pos, size, text="", id=-1, **kwargs):
        wx.PyControl.__init__(self,parent, id, **kwargs)

# The conversions, hereafter, were to solve another but. I don't know if it is 
# necessary to do this since the source being given to the class (in this case)
# is a BMP - is there a better way to prevent an error that i have not
# stumbled accost? 

        # Set the BMP's to the ones given in the constructor
        self.Mouse_over_bmp = wx.Bitmap(wx.Image(MOUSE_OVER_BMP, wx.BITMAP_TYPE_ANY).ConvertToBitmap())
        self.Norm_bmp = wx.Bitmap(wx.Image(NORM_BMP, wx.BITMAP_TYPE_ANY).ConvertToBitmap())
        self.Push_bmp = wx.Bitmap(wx.Image(PUSH_BMP, wx.BITMAP_TYPE_ANY).ConvertToBitmap())
        self.Pos_bmp = self.pos

        self.Bind(wx.EVT_LEFT_DOWN, self._onMouseDown)
        self.Bind(wx.EVT_LEFT_UP, self._onMouseUp)
        self.Bind(wx.EVT_LEAVE_WINDOW, self._onMouseLeave)
        self.Bind(wx.EVT_ENTER_WINDOW, self._onMouseEnter)
        self.Bind(wx.EVT_ERASE_BACKGROUND,self._onEraseBackground)
        self.Bind(wx.EVT_PAINT,self._onPaint)

        self._mouseIn = self._mouseDown = False

    def _onMouseEnter(self, event):
        self._mouseIn = True

    def _onMouseLeave(self, event):
        self._mouseIn = False

    def _onMouseDown(self, event):
        self._mouseDown = True

    def _onMouseUp(self, event):
        self._mouseDown = False
        self.sendButtonEvent()

    def sendButtonEvent(self):
        event = wx.CommandEvent(wx.wxEVT_COMMAND_BUTTON_CLICKED, self.GetId())
        event.SetInt(0)
        event.SetEventObject(self)
        self.GetEventHandler().ProcessEvent(event)

    def _onEraseBackground(self,event):
        # reduce flicker
        pass

    def _onPaint(self, event):
        dc = wx.BufferedPaintDC(self)
        dc.SetFont(self.GetFont())
        dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
        dc.Clear()
        dc.DrawBitmap(self.Norm_bmp)

        # draw whatever you want to draw
        # draw glossy bitmaps e.g. dc.DrawBitmap
        if self._mouseIn:   # If the Mouse is over the button
            dc.DrawBitmap(self, self.Mouse_over_bmp, self.Pos_bmp, useMask=False)
        if self._mouseDown: # If the Mouse clicks the button
            dc.DrawBitmap(self, self.Push_bmp, self.Pos_bmp, useMask=False)

Main.py

import wx
import Custom_Button
from wxPython.wx import *

ID_ABOUT = 101
ID_EXIT  = 102

class MyFrame(wx.Frame):
    def __init__(self, parent, ID, title):
        wxFrame.__init__(self, parent, ID, title,
                         wxDefaultPosition, wxSize(400, 400))

        self.CreateStatusBar()
        self.SetStatusText("Program testing custom button overlays")
        menu = wxMenu()
        menu.Append(ID_ABOUT, "&About", "More information about this program")
        menu.AppendSeparator()
        menu.Append(ID_EXIT, "E&xit", "Terminate the program")
        menuBar = wxMenuBar()
        menuBar.Append(menu, "&File");
        self.SetMenuBar(menuBar)

        self.Button1 = Custom_Button(self, parent, -1, 
                                "D:/Documents/Python/Normal.bmp", 
                                "D:/Documents/Python/Clicked.bmp",
                                "D:/Documents/Python/Over.bmp",
                                wx.Point(200,200), wx.Size(300,100))

        EVT_MENU(self, ID_ABOUT, self.OnAbout)
        EVT_MENU(self, ID_EXIT,  self.TimeToQuit)

    def OnAbout(self, event):
        dlg = wxMessageDialog(self, "Testing the functions of custom "
                              "buttons using pyDev and wxPython",
                              "About", wxOK | wxICON_INFORMATION)
        dlg.ShowModal()
        dlg.Destroy()


    def TimeToQuit(self, event):
        self.Close(true)



class MyApp(wx.App):
    def OnInit(self):
        frame = MyFrame(NULL, -1, "wxPython | Buttons")
        frame.Show(true)
        self.SetTopWindow(frame)
        return true

app = MyApp(0)
app.MainLoop()

错误信息（和追踪信息）

/home/wallter/python/Custom Button overlay/src/Custom_Button.py:8: DeprecationWarning: The wxPython compatibility package is no longer automatically generated or actively maintained.  Please switch to the wx package as soon as possible.

我在使用wxPython时一直无法解决这个问题，有什么帮助吗？

  from wxPython.wx import *
Traceback (most recent call last):
  File "/home/wallter/python/Custom Button overlay/src/Main.py", line 57, in <module>
    app = MyApp(0)
  File "/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7978, in __init__
    self._BootstrapApp()
  File "/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7552, in _BootstrapApp
    return _core_.PyApp__BootstrapApp(*args, **kwargs)
  File "/home/wallter/python/Custom Button overlay/src/Main.py", line 52, in OnInit
    frame = MyFrame(NULL, -1, "wxPython | Buttons")
  File "/home/wallter/python/Custom Button overlay/src/Main.py", line 32, in __init__
    wx.Point(200,200), wx.Size(300,100))
TypeError: 'module' object is not callable

我尝试过去掉 "wx.Point(200,200), wx.Size(300,100))"，结果错误信息就转到上面那行了。我这样声明对吗？求助！

之前关于这段代码的问题可以在这里找到。

面向对象编程代码调试 wxpython 语法错误自定义类按钮事件编程帮助状态控制

Python - 帮助自定义 wx.Python (pyDev) 类

自定义按钮

Main.py

错误信息（和追踪信息）

我在使用wxPython时一直无法解决这个问题，有什么帮助吗？

2 个回答

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