在Python中从wxFormBuilder访问特定的sizer

时间：2015-10-26 14:06:25

标签： python wxpython wxformbuilder

我使用wxFormBuilder构建了一个GUI，并且想要在GUI中向sizer动态添加按钮。这是wxFormBuilder代码。

# -*- coding: utf-8 -*- 

###########################################################################
## Python code generated with wxFormBuilder (version Jun 17 2015)
## http://www.wxformbuilder.org/
##
## PLEASE DO "NOT" EDIT THIS FILE!
###########################################################################

import wx
import wx.xrc

###########################################################################
## Class HighVoltage
###########################################################################

class HighVoltage ( wx.Frame ):

    def __init__( self, parent ):
        wx.Frame.__init__ ( self, parent, id = wx.ID_ANY, title = wx.EmptyString, pos = wx.DefaultPosition, size = wx.Size( 1031,530 ), style = wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL )

        self.SetSizeHintsSz( wx.DefaultSize, wx.DefaultSize )
        self.SetBackgroundColour( wx.SystemSettings.GetColour( wx.SYS_COLOUR_ACTIVECAPTION ) )

        bSizer84 = wx.BoxSizer( wx.VERTICAL )

        self.m_panel70 = wx.Panel( self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TAB_TRAVERSAL )
        bSizer85 = wx.BoxSizer( wx.HORIZONTAL )

        self.m_staticText79 = wx.StaticText( self.m_panel70, wx.ID_ANY, u"HV Documentation", wx.DefaultPosition, wx.DefaultSize, 0 )
        self.m_staticText79.Wrap( -1 )
        self.m_staticText79.SetFont( wx.Font( 20, 70, 90, 92, False, "Century Gothic" ) )

        bSizer85.Add( self.m_staticText79, 0, wx.ALIGN_CENTER_VERTICAL|wx.ALL, 5 )


        bSizer85.AddSpacer( ( 0, 0), 1, wx.EXPAND, 5 )

        self.m_bitmap24 = wx.StaticBitmap( self.m_panel70, wx.ID_ANY, wx.Bitmap( u"LOGOtransSmall.png", wx.BITMAP_TYPE_ANY ), wx.DefaultPosition, wx.DefaultSize, 0 )
        bSizer85.Add( self.m_bitmap24, 0, wx.ALL, 5 )


        self.m_panel70.SetSizer( bSizer85 )
        self.m_panel70.Layout()
        bSizer85.Fit( self.m_panel70 )
        bSizer84.Add( self.m_panel70, 0, wx.EXPAND |wx.ALL, 5 )

        self.m_panel71 = wx.Panel( self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TAB_TRAVERSAL )
        bSizer86 = wx.BoxSizer( wx.VERTICAL )


        bSizer86.AddSpacer( ( 0, 0), 1, wx.EXPAND, 5 )

        self.m_panel73 = wx.Panel( self.m_panel71, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TAB_TRAVERSAL )
        bSizer86.Add( self.m_panel73, 0, wx.EXPAND |wx.ALL, 5 )


        self.m_panel71.SetSizer( bSizer86 )
        self.m_panel71.Layout()
        bSizer86.Fit( self.m_panel71 )
        bSizer84.Add( self.m_panel71, 1, wx.EXPAND |wx.ALL, 5 )

        self.m_panel72 = wx.Panel( self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TAB_TRAVERSAL )
        bSizer87 = wx.BoxSizer( wx.HORIZONTAL )


        bSizer87.AddSpacer( ( 0, 0), 1, wx.EXPAND, 5 )

        self.m_button65 = wx.Button( self.m_panel72, wx.ID_ANY, u"Exit", wx.DefaultPosition, wx.DefaultSize, 0 )
        bSizer87.Add( self.m_button65, 0, wx.ALL, 5 )


        self.m_panel72.SetSizer( bSizer87 )
        self.m_panel72.Layout()
        bSizer87.Fit( self.m_panel72 )
        bSizer84.Add( self.m_panel72, 0, wx.EXPAND |wx.ALL, 5 )


        self.SetSizer( bSizer84 )
        self.Layout()

        self.Centre( wx.BOTH )

    def __del__( self ):
        pass

我想向bSizer86添加按钮，bSizer86是m_panel71的子代。 这是我到目前为止所做的尝试。

class HvDocs(HighVoltage):
    def __init__(self, parent):
        HighVoltage.__init__(self, parent)
        con = sqlite3.connect('hsmanagement.sqlite')
        cur = con.execute('SELECT employee FROM employees WHERE hv=1 ORDER BY employee')
        result = cur.fetchall()
        con.close()
        print result
        sizer = self.GetSizer()
        print type(sizer)
        for f in range(0, len(result) ):
            sizer.Add(wx.Button(self, label=str(result[f][0]), id=int(f), size=(200, 40)), 2, wx.CENTER)

我尝试了sizer = self.GetSizer()的一些变体，例如sizer = self.m_panel71和sizer = self.GetSizer(self.m_panel71)，但我可以管理的是将按钮添加到顶级sizer bSizer84。如何获得对bSizer86的访问权限？

3 个答案:

答案 0 :(得分：2)

请参阅以下最小示例，了解如何仅按名称查找面板，按钮和大小调整器。 wxFormBuilder提供了为要跟踪的GUI元素设置wx.Window属性window_name的可能性。您应该能够在不依赖类属性的情况下找到需要知道具有parent.FindWindowByName(…)此名称的控件。

import wx

TOK_PNL = 'window_name pnl'
TOK_BTN = 'window_name btn'

def on_btn(evt, parent):
    btn = parent.FindWindowByName(TOK_BTN)
    pnl = parent.FindWindowByName(TOK_PNL)

    newbtn = wx.Button(pnl, -1, 'newbtn')

    szsub = btn.GetContainingSizer()
    szsub.Add(newbtn, 1, wx.EXPAND|wx.ALL, 4)

    pnl.Layout()


class testfrm(wx.Frame):
    def __init__(self, *args, **kwds):
        wx.Frame.__init__(self, *args, **kwds)
        pnl = wx.Panel(self, -1)
        pnl.SetName(TOK_PNL)

        btn = wx.Button(pnl, -1, 'Add Button')
        btn.SetName(TOK_BTN)
        szmain = wx.BoxSizer(wx.VERTICAL)
        szsub = wx.BoxSizer(wx.HORIZONTAL)
        szsub.Add(btn, 0, wx.EXPAND|wx.ALL, 4)
        szmain.Add(szsub)

        pnl.SetSizer(szmain)

        the_parent = self
        btn.Bind(wx.EVT_BUTTON, lambda evt: on_btn(evt, the_parent))


if __name__ == '__main__':
    app = wx.App(redirect=False)
    frm = testfrm(None, -1, 'testfrm')
    frm.Show()
    app.MainLoop()

答案 1 :(得分：0)

进一步深入挖掘后，我终于用以下代码解决了我的问题

    sizer = self.m_button67.GetContainingSizer()
    self.m_button67.Destroy()
    self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= "Ladder ID")
    sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
    self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= "Engineer")
    sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
    self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= "Description")
    sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
    self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= "Last Check")
    sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
    self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= "Next Check")
    sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
    for f in range(0, len(ladder_data)):
        self.m_button = wx.Button( self.m_panel74, id=int(f), label=str(ladder_data[f][0]))
        self.Bind(wx.EVT_BUTTON, self.detect_on_button)
        sizer.Add( self.m_button, 0, wx.ALL, 5 )
        self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= str(ladder_data[f][1]))
        sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
        self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= str(ladder_data[f][2]))
        sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
        self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= str(ladder_data[f][3]))
        sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
        self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= str(ladder_data[f][4]))
        sizer.Add( self.m_staticText, 0, wx.ALL, 5 )
    self.m_panel74.SetSizer( sizer )
    self.m_panel74.Layout()
    sizer.Fit( self.m_panel74 )

关键在于GetContainingSizer（）的发现。 使用wxFormBuilder（self.m_button67）中设置的虚拟按钮

sizer = self.m_button67.GetContainingSizer()

让你成为sizer 用

删除虚拟按钮 
self.m_button67.Destroy()

使用

添加小部件 
self.m_staticText = wx.StaticText( self.m_panel74, wx.ID_ANY, label= str(ladder_data[f][1]))
sizer.Add( self.m_staticText, 0, wx.ALL, 5 )

并使用

完成布局 
self.m_panel74.SetSizer( sizer )
self.m_panel74.Layout()
sizer.Fit( self.m_panel74 )

希望这可以帮助任何有同样问题的人。

答案 2 :(得分：0)

可能有点晚了，

我相信您在错误的元素上使用了 GetSizer。 尝试通过 sizer = self.GetSizer()

切换 sizer = self.m_panel71.GetSizer()
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