def __init__(self, title = "wxPython: stdout/stderr"):
self.frame = None
self.title = title
+ self.pos = wx.DefaultPosition
+ self.size = (450, 300)
self.parent = None
def SetParent(self, parent):
def CreateOutputWindow(self, st):
- self.frame = wx.Frame(self.parent, -1, self.title,
- style=wx.DEFAULT_FRAME_STYLE | wx.NO_FULL_REPAINT_ON_RESIZE)
+ self.frame = wx.Frame(self.parent, -1, self.title, self.pos, self.size,
+ style=wx.DEFAULT_FRAME_STYLE)
self.text = wx.TextCtrl(self.frame, -1, "",
- style = wx.TE_MULTILINE | wx.TE_READONLY)
+ style=wx.TE_MULTILINE|wx.TE_READONLY)
self.text.AppendText(st)
- self.frame.SetSize((450, 300))
self.frame.Show(True)
- EVT_CLOSE(self.frame, self.OnCloseWindow)
+ self.frame.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
def OnCloseWindow(self, event):
wx.CallAfter(self.frame.Close)
+ def flush(self):
+ pass
+
+
#----------------------------------------------------------------------
_defRedirect = (wx.Platform == '__WXMSW__' or wx.Platform == '__WXMAC__')
-
+
class App(wx.PyApp):
"""
- The main application class. Derive from this and implement an OnInit
- method that creates a frame and then calls self.SetTopWindow(frame)
+ The ``wx.App`` class represents the application and is used to:
+
+ * bootstrap the wxPython system and initialize the underlying
+ gui toolkit
+ * set and get application-wide properties
+ * implement the windowing system main message or event loop,
+ and to dispatch events to window instances
+ * etc.
+
+ Every application must have a ``wx.App`` instance, and all
+ creation of UI objects should be delayed until after the
+ ``wx.App`` object has been created in order to ensure that the gui
+ platform and wxWidgets have been fully initialized.
+
+ Normally you would derive from this class and implement an
+ ``OnInit`` method that creates a frame and then calls
+ ``self.SetTopWindow(frame)``.
+
+ :see: `wx.PySimpleApp` for a simpler app class that can be used
+ directly.
"""
+
outputWindowClass = PyOnDemandOutputWindow
- def __init__(self, redirect=_defRedirect, filename=None, useBestVisual=False):
+ def __init__(self, redirect=_defRedirect, filename=None,
+ useBestVisual=False, clearSigInt=True):
+ """
+ Construct a ``wx.App`` object.
+
+ :param redirect: Should ``sys.stdout`` and ``sys.stderr`` be
+ redirected? Defaults to True on Windows and Mac, False
+ otherwise. If `filename` is None then output will be
+ redirected to a window that pops up as needed. (You can
+ control what kind of window is created for the output by
+ resetting the class variable ``outputWindowClass`` to a
+ class of your choosing.)
+
+ :param filename: The name of a file to redirect output to, if
+ redirect is True.
+
+ :param useBestVisual: Should the app try to use the best
+ available visual provided by the system (only relevant on
+ systems that have more than one visual.) This parameter
+ must be used instead of calling `SetUseBestVisual` later
+ on because it must be set before the underlying GUI
+ toolkit is initialized.
+
+ :param clearSigInt: Should SIGINT be cleared? This allows the
+ app to terminate upon a Ctrl-C in the console like other
+ GUI apps will.
+
+ :note: You should override OnInit to do applicaition
+ initialization to ensure that the system, toolkit and
+ wxWidgets are fully initialized.
+ """
+
wx.PyApp.__init__(self)
- if wx.Platform == "__WXMAC__":
- try:
- import MacOS
- if not MacOS.WMAvailable():
- print """\
-This program needs access to the screen. Please run with 'pythonw',
-not 'python', and only when you are logged in on the main display of
-your Mac."""
- _sys.exit(1)
- except:
- pass
+ # make sure we can create a GUI
+ if not self.IsDisplayAvailable():
+
+ if wx.Platform == "__WXMAC__":
+ msg = """This program needs access to the screen.
+Please run with 'pythonw', not 'python', and only when you are logged
+in on the main display of your Mac."""
+
+ elif wx.Platform == "__WXGTK__":
+ msg ="Unable to access the X Display, is $DISPLAY set properly?"
+
+ else:
+ msg = "Unable to create GUI"
+ # TODO: more description is needed for wxMSW...
+ raise SystemExit(msg)
+
# This has to be done before OnInit
self.SetUseBestVisual(useBestVisual)
# KeyboardInterrupt???) but will later segfault on exit. By
# setting the default handler then the app will exit, as
# expected (depending on platform.)
- try:
- import signal
- signal.signal(signal.SIGINT, signal.SIG_DFL)
- except:
- pass
+ if clearSigInt:
+ try:
+ import signal
+ signal.signal(signal.SIGINT, signal.SIG_DFL)
+ except:
+ pass
# Save and redirect the stdio to a window?
self.stdioWin = None
if redirect:
self.RedirectStdio(filename)
+ # Use Python's install prefix as the default
+ wx.StandardPaths.Get().SetInstallPrefix(_sys.prefix)
+
# This finishes the initialization of wxWindows and then calls
# the OnInit that should be present in the derived class
self._BootstrapApp()
- def __del__(self):
- try:
- self.RestoreStdio() # Just in case the MainLoop was overridden
- except:
- pass
+ def OnPreInit(self):
+ """
+ Things that must be done after _BootstrapApp has done its
+ thing, but would be nice if they were already done by the time
+ that OnInit is called.
+ """
+ wx.StockGDI._initStockObjects()
+
+ def __del__(self, destroy=wx.PyApp.__del__):
+ self.RestoreStdio() # Just in case the MainLoop was overridden
+ destroy(self)
+
+ def Destroy(self):
+ self.this.own(False)
+ wx.PyApp.Destroy(self)
def SetTopWindow(self, frame):
"""Set the \"main\" top level window"""
def RestoreStdio(self):
- _sys.stdout, _sys.stderr = self.saveStdio
+ try:
+ _sys.stdout, _sys.stderr = self.saveStdio
+ except:
+ pass
+
+ def SetOutputWindowAttributes(self, title=None, pos=None, size=None):
+ """
+ Set the title, position and/or size of the output window if
+ the stdio has been redirected. This should be called before
+ any output would cause the output window to be created.
+ """
+ if self.stdioWin:
+ if title is not None:
+ self.stdioWin.title = title
+ if pos is not None:
+ self.stdioWin.pos = pos
+ if size is not None:
+ self.stdioWin.size = size
+
-# change from wxPyApp_ to wxApp_
+
+# change from wx.PyApp_XX to wx.App_XX
App_GetMacSupportPCMenuShortcuts = _core_.PyApp_GetMacSupportPCMenuShortcuts
App_GetMacAboutMenuItemId = _core_.PyApp_GetMacAboutMenuItemId
App_GetMacPreferencesMenuItemId = _core_.PyApp_GetMacPreferencesMenuItemId
"""
A simple application class. You can just create one of these and
then then make your top level windows later, and not have to worry
- about OnInit."""
+ about OnInit. For example::
+
+ app = wx.PySimpleApp()
+ frame = wx.Frame(None, title='Hello World')
+ frame.Show()
+ app.MainLoop()
- def __init__(self, redirect=False, filename=None, useBestVisual=False):
- wx.App.__init__(self, redirect, filename, useBestVisual)
+ :see: `wx.App`
+ """
+
+ def __init__(self, redirect=False, filename=None,
+ useBestVisual=False, clearSigInt=True):
+ """
+ :see: `wx.App.__init__`
+ """
+ wx.App.__init__(self, redirect, filename, useBestVisual, clearSigInt)
def OnInit(self):
- wx.InitAllImageHandlers()
return True
+
# Is anybody using this one?
class PyWidgetTester(wx.App):
def __init__(self, size = (250, 100)):
self.SetTopWindow(self.frame)
return True
- def SetWidget(self, widgetClass, *args):
- w = widgetClass(self.frame, *args)
+ def SetWidget(self, widgetClass, *args, **kwargs):
+ w = widgetClass(self.frame, *args, **kwargs)
self.frame.Show(True)
#----------------------------------------------------------------------------
# DO NOT hold any other references to this object. This is how we
-# know when to cleanup system resources that wxWin is holding. When
+# know when to cleanup system resources that wxWidgets is holding. When
# the sys module is unloaded, the refcount on sys.__wxPythonCleanup
-# goes to zero and it calls the wxApp_CleanUp function.
+# goes to zero and it calls the wx.App_CleanUp function.
class __wxPyCleanup:
def __init__(self):
_sys.__wxPythonCleanup = __wxPyCleanup()
## # another possible solution, but it gets called too early...
-## if sys.version[0] == '2':
-## import atexit
-## atexit.register(_core_.wxApp_CleanUp)
-## else:
-## sys.exitfunc = _core_.wxApp_CleanUp
+## import atexit
+## atexit.register(_core_.wxApp_CleanUp)
#----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff