我正在运行 Python 2.7.5,并通过自制软件安装了 wxWidgets。
我的问题是在 OS/X 上运行时根本无法接收键盘事件。考虑以下示例源:
无名.py:
import wx
import wx.xrc
class MyFrame2 ( wx.Frame ):
def __init__( self, parent ):
wx.Frame.__init__ ( self, parent, id = wx.ID_ANY, title = wx.EmptyString, pos = wx.DefaultPosition, size = wx.Size( 500,300 ), style = wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL )
self.SetSizeHintsSz( wx.DefaultSize, wx.DefaultSize )
bSizer1 = wx.BoxSizer( wx.VERTICAL )
self.m_button1 = wx.Button( self, wx.ID_ANY, u"MyButton", wx.DefaultPosition, wx.DefaultSize, 0 )
bSizer1.Add( self.m_button1, 0, wx.ALL, 5 )
self.SetSizer( bSizer1 )
self.Layout()
self.Centre( wx.BOTH )
# Connect Events
self.m_button1.Bind( wx.EVT_BUTTON, self.OnClick )
def __del__( self ):
pass
# Virtual event handlers, overide them in your derived class
def OnClick( self, event ):
event.Skip()
主要.py:
from noname import MyFrame2
class MyFrame2Impl(MyFrame2):
def __init__(self, parent):
MyFrame2.__init__(self, parent)
def OnClick(self, event):
self.m_button1.SetLabel(str(wx.Window.FindFocus() != None))
import wx
app = wx.App(False) # Create a new app, don't redirect stdout/stderr to a window.
frame = MyFrame2Impl(None) # A Frame is a top-level window.
frame.m_button1.SetFocus()
frame.Show(True) # Show the frame.
app.MainLoop()
在 Ubuntu 上,一旦我点击按钮,它就会显示“True”。按空格键单击按钮。在 OS/X 上,单击按钮后,它显示“False”。按空格键没有任何效果。
在 WxMac 常见问题 (http://www.wxwidgets.org/docs/faqmac.htm) 的底部,它是这样说的:
Why can't I set focus to my wxMac application? Because you didn't build your application as a bundle. You must create a bundle for Mac OS X applications, simply running the usual g++
wx-config --cxxflags --libs-o minimal minimal.cpp is not enough to build a correctly working Mac application. Please look at the samples makefiles which do build bundles under Mac OS X or read this wiki topic for more details.
我用这个脚本做了一个包:
from setuptools import setup
APP = ["main.py"]
OPTIONS = {"argv_emulation": True, "includes": ["wx"]}
setup(app=APP, options={"py2app": OPTIONS}, setup_requires=["py2app"])
我用它来通过命令构建一个包:
python setup.py py2app
这生成了可执行文件,但焦点问题仍然存在。因此,我无法使用键盘来控制应用程序。如何让应用程序检测键盘事件?
请您参考如下方法:
尝试将 wx.Panel 作为框架的唯一子项。接下来将所有其他小部件放入面板中(即将面板设置为其他小部件的父级)。我知道该面板添加了跨平台的 Tab 键功能,因此我怀疑这可能有助于处理其他键盘事件。
