[英]wxPython: Using a GridBagSizer
我是python开发的初学者,我正在尝试创建一个简单的应用程序。
本应用程序应该向我展示一个包含GridBagSize
的框架,该框架应加载并GridBagSize
4个按钮。 但是,我遇到的一个小问题是我的4个按钮在屏幕的左上角很小。
为了澄清起见,我使用适用于Windows 32位的Python 2.7.8和wxPython 2.8.12.1。
我在下面附上我的代码:
#!/usr/bin/python
# -*- coding: utf-8 -*-
# import wx Module
import wx
# Creating a class derived from wx.Frame
class MyFrame(wx.Frame):
def __init__(self, title):
super(MyFrame, self).__init__(parent=None, id=wx.ID_ANY, title=title,style=wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL)
# Creating a GridBagSizer
frameSizer=wx.GridBagSizer(vgap=5, hgap=5)
# Creating buttons inside the frame and positioning them in the GridBagSizer
Button1=wx.Button(parent=self, id=wx.ID_ANY, label="Button 1")
frameSizer.Add(item=Button1, pos=(0, 0), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button2=wx.Button(parent=self, id=wx.ID_ANY, label="Button 2")
frameSizer.Add(item=Button2, pos=(0, 1), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button3=wx.Button(parent=self, id=wx.ID_ANY, label="Button 3")
Button4=wx.Button(parent=self, id=wx.ID_CLOSE, label="Button 4")
self.SetSizer(frameSizer)
#frameSizer.SetSizeHints(self)
# We set our frame dimansions
self.SetSize((400, 250))
# Event of buttons ((Only the closing event for the Button4)
Button4.Bind(wx.EVT_BUTTON, self.OnClose)
# Creating the class method associated with the action of Button4
def OnClose(self, evt):
self.Destroy()
class MyApp(wx.App):
"""
Specific class to the application created
"""
def OnInit(self):
frame=MyFrame("Example of a Small Program")
# Display frame
frame.Show(True)
# We put the frame in main window
self.SetTopWindow(frame)
return True
# Method of closing
def OnExit(self):
result=wx.MessageDialog(parent=None, message="Goodbye", caption="Exit", style=wx.OK)
# Display dialog goodbye
result.ShowModal()
# Program execution
app=MyApp(redirect=False)
app.MainLoop()
感谢你的快速回复。
是的,我忘记在frameSizer中添加按钮3和4。
我将插入按钮的代码放在下面。
在显示时,我的按钮仍在屏幕的左上方。
关于您减少跨度到1行和1列的建议,我得到相同的结果。
我想我必须使用AddGrowableCol和AddGrowableRow方法,但我不知道要使用它们。
使用GridSizer大小调整器,可以自动调整框架的大小。
显然,GridBagSizer不是这种情况吗?
谢谢你的帮助。
最好的祝福。
# Creating buttons inside the frame and positioning them in the GridBagSizer
Button1=wx.Button(parent=self, id=wx.ID_ANY, label="Button 1")
frameSizer.Add(item=Button1, pos=(0, 0), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button2=wx.Button(parent=self, id=wx.ID_ANY, label="Button 2")
frameSizer.Add(item=Button2, pos=(0, 1), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button3=wx.Button(parent=self, id=wx.ID_ANY, label="Button 3")
frameSizer.Add(item=Button3, pos=(2, 0), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button4=wx.Button(parent=self, id=wx.ID_CLOSE, label="Button 4")
frameSizer.Add(item=Button4, pos=(2, 1), span=(2, 1), flag=wx.ALIGN_CENTRE)
self.SetSizer(frameSizer)
首先,我要感谢您在理解GridBagSizer方面给我的帮助。
我终于找到了解决我问题的方法。
实际上,我使用了AddGrowableRow和AddGrowableCol方法。
我在下面将您的全部代码重新贴上,希望对我这样的初学者有所帮助。
如果您在此代码中发现任何错误,请告诉我。
最好的祝福。
#!/usr/bin/python
# -*- coding: utf-8 -*-
# import wx Module
import wx
# Creating a class derived from wx.Frame
class MyFrame(wx.Frame):
def __init__(self, title):
super(MyFrame, self).__init__(parent=None, id=wx.ID_ANY, title=title,style=wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL)
# Creating a GridBagSizer
frameSizer=wx.GridBagSizer(vgap=5, hgap=5)
# Creating buttons inside the frame and positioning them in the GridBagSizer
Button1=wx.Button(parent=self, id=wx.ID_ANY, label="Button 1")
frameSizer.Add(item=Button1, pos=(0, 0), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button2=wx.Button(parent=self, id=wx.ID_ANY, label="Button 2")
frameSizer.Add(item=Button2, pos=(0, 1), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button3=wx.Button(parent=self, id=wx.ID_ANY, label="Button 3")
frameSizer.Add(item=Button3, pos=(2, 0), span=(2, 1), flag=wx.ALIGN_CENTRE)
Button4=wx.Button(parent=self, id=wx.ID_CLOSE, label="Button 4")
frameSizer.Add(item=Button4, pos=(2, 1), span=(2, 1), flag=wx.ALIGN_CENTRE)
self.SetSizer(frameSizer)
frameSizer.SetSizeHints(self)
# We resize our columns by the method AddGrowableCol
for i in range(2):
frameSizer.AddGrowableCol(i)
# We resize our rows by the method AddGrowableRow
for i in range(4):
frameSizer.AddGrowableRow(i)
# We set our frame dimansions
self.SetSize((400, 250))
# Event of buttons ((Only the closing event for the Button4)
Button4.Bind(wx.EVT_BUTTON, self.OnClose)
# Creating the class method associated with the action of Button4
def OnClose(self, evt):
self.Destroy()
class MyApp(wx.App):
"""
Specific class to the application created
"""
def OnInit(self):
frame=MyFrame("Example of a Small Program")
# Display frame
frame.Show(True)
# We put the frame in main window
self.SetTopWindow(frame)
return True
# Method of closing
def OnExit(self):
result=wx.MessageDialog(parent=None, message="Goodbye", caption="Exit", style=wx.OK)
# Display dialog goodbye
result.ShowModal()
# Program execution
app=MyApp(redirect=False)
app.MainLoop()
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