Redo (again) how the stock objects are initialized in wxPython.

Factor out the wxPyTwoIntItem_helper template function so it can be
used in other extension modules.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39008 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn 2006-05-04 02:03:39 +00:00
parent f6e949dfbe
commit 57ffa5851d
6 changed files with 139 additions and 132 deletions

View File

@ -0,0 +1,52 @@
////////////////////////////////////////////////////////////////////////////
// Name: twoitem.h
// Purpose: A template function to help with converting a python object
// to some wx class that takes two integer value parameters.
// Factored out of wxPython_int.h
//
// Author: Robin Dunn
//
// Created: 25-April-2006
// RCS-ID: $Id$
// Copyright: (c) 2006 by Total Control Software
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifndef __twoitem_h__
#define __twoitem_h__
template<class T>
bool wxPyTwoIntItem_helper(PyObject* source, T** obj, const wxChar* name)
{
// If source is an object instance then it may already be the right type
if (wxPySwigInstance_Check(source)) {
T* ptr;
if (! wxPyConvertSwigPtr(source, (void **)&ptr, name))
goto error;
*obj = ptr;
return true;
}
// otherwise a 2-tuple of integers is expected
else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
PyObject* o1 = PySequence_GetItem(source, 0);
PyObject* o2 = PySequence_GetItem(source, 1);
if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
Py_DECREF(o1);
Py_DECREF(o2);
goto error;
}
**obj = T(PyInt_AsLong(o1), PyInt_AsLong(o2));
Py_DECREF(o1);
Py_DECREF(o2);
return true;
}
error:
wxString msg;
msg.Printf(wxT("Expected a 2-tuple of integers or a %s object."), name);
PyErr_SetString(PyExc_TypeError, msg.mb_str());
return false;
}
#endif

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@ -226,41 +226,6 @@ bool wxColour_typecheck(PyObject* source);
bool wxPyCheckForApp();
template<class T>
bool wxPyTwoIntItem_helper(PyObject* source, T** obj, const wxChar* name)
{
// If source is an object instance then it may already be the right type
if (wxPySwigInstance_Check(source)) {
T* ptr;
if (! wxPyConvertSwigPtr(source, (void **)&ptr, name))
goto error;
*obj = ptr;
return true;
}
// otherwise a 2-tuple of integers is expected
else if (PySequence_Check(source) && PyObject_Length(source) == 2) {
PyObject* o1 = PySequence_GetItem(source, 0);
PyObject* o2 = PySequence_GetItem(source, 1);
if (!PyNumber_Check(o1) || !PyNumber_Check(o2)) {
Py_DECREF(o1);
Py_DECREF(o2);
goto error;
}
**obj = T(PyInt_AsLong(o1), PyInt_AsLong(o2));
Py_DECREF(o1);
Py_DECREF(o2);
return true;
}
error:
wxString msg;
msg.Printf(wxT("Expected a 2-tuple of integers or a %s object."), name);
PyErr_SetString(PyExc_TypeError, msg.mb_str());
return false;
}
// Other helpful stuff
bool wxPy2int_seq_helper(PyObject* source, int* i1, int* i2);

View File

@ -173,6 +173,15 @@ your Mac."""
self._BootstrapApp()
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)

View File

@ -70,82 +70,54 @@ public:
static const wxPen* GetPen(Item item);
virtual const wxFont* GetFont(Item item);
%pythoncode {
def _initStockObjects():
import wx
wx.ITALIC_FONT = StockGDI.instance().GetFont(StockGDI.FONT_ITALIC)
wx.NORMAL_FONT = StockGDI.instance().GetFont(StockGDI.FONT_NORMAL)
wx.SMALL_FONT = StockGDI.instance().GetFont(StockGDI.FONT_SMALL)
wx.SWISS_FONT = StockGDI.instance().GetFont(StockGDI.FONT_SWISS)
wx.BLACK_DASHED_PEN = StockGDI.GetPen(StockGDI.PEN_BLACKDASHED)
wx.BLACK_PEN = StockGDI.GetPen(StockGDI.PEN_BLACK)
wx.CYAN_PEN = StockGDI.GetPen(StockGDI.PEN_CYAN)
wx.GREEN_PEN = StockGDI.GetPen(StockGDI.PEN_GREEN)
wx.GREY_PEN = StockGDI.GetPen(StockGDI.PEN_GREY)
wx.LIGHT_GREY_PEN = StockGDI.GetPen(StockGDI.PEN_LIGHTGREY)
wx.MEDIUM_GREY_PEN = StockGDI.GetPen(StockGDI.PEN_MEDIUMGREY)
wx.RED_PEN = StockGDI.GetPen(StockGDI.PEN_RED)
wx.TRANSPARENT_PEN = StockGDI.GetPen(StockGDI.PEN_TRANSPARENT)
wx.WHITE_PEN = StockGDI.GetPen(StockGDI.PEN_WHITE)
wx.BLACK_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_BLACK)
wx.BLUE_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_BLUE)
wx.CYAN_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_CYAN)
wx.GREEN_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_GREEN)
wx.GREY_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_GREY)
wx.LIGHT_GREY_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_LIGHTGREY)
wx.MEDIUM_GREY_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_MEDIUMGREY)
wx.RED_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_RED)
wx.TRANSPARENT_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_TRANSPARENT)
wx.WHITE_BRUSH = StockGDI.GetBrush(StockGDI.BRUSH_WHITE)
wx.BLACK = StockGDI.GetColour(StockGDI.COLOUR_BLACK)
wx.BLUE = StockGDI.GetColour(StockGDI.COLOUR_BLUE)
wx.CYAN = StockGDI.GetColour(StockGDI.COLOUR_CYAN)
wx.GREEN = StockGDI.GetColour(StockGDI.COLOUR_GREEN)
wx.LIGHT_GREY = StockGDI.GetColour(StockGDI.COLOUR_LIGHTGREY)
wx.RED = StockGDI.GetColour(StockGDI.COLOUR_RED)
wx.WHITE = StockGDI.GetColour(StockGDI.COLOUR_WHITE)
wx.CROSS_CURSOR = StockGDI.GetCursor(StockGDI.CURSOR_CROSS)
wx.HOURGLASS_CURSOR = StockGDI.GetCursor(StockGDI.CURSOR_HOURGLASS)
wx.STANDARD_CURSOR = StockGDI.GetCursor(StockGDI.CURSOR_STANDARD)
_initStockObjects = staticmethod(_initStockObjects)
}
};
%pythoncode {
%# This function makes a class used to do delayed initialization of some
%# stock wx objects. When they are used the first time then an init function
%# is called to make the real instance, which is then used to replace the
%# original instance and class seen by the programmer.
def _wxPyMakeDelayedInitWrapper(initFunc):
class _wxPyStockObjectWrapper(object):
def __init__(self, *args):
self._args = args
def __getattr__(self, name):
obj = initFunc(*self._args)
self.__class__ = obj.__class__
self.__dict__ = obj.__dict__
return getattr(self, name)
def __str__(self):
return self.__getattr__("__str__")()
def __repr__(self):
return self.__getattr__("__repr__")()
return _wxPyStockObjectWrapper
def _wxPyFontInit(id):
return StockGDI.instance().GetFont(id)
_wxPyStockPen = _wxPyMakeDelayedInitWrapper(StockGDI.GetPen)
_wxPyStockBrush = _wxPyMakeDelayedInitWrapper(StockGDI.GetBrush)
_wxPyStockCursor = _wxPyMakeDelayedInitWrapper(StockGDI.GetCursor)
_wxPyStockColour = _wxPyMakeDelayedInitWrapper(StockGDI.GetColour)
_wxPyStockFont = _wxPyMakeDelayedInitWrapper(_wxPyFontInit)
ITALIC_FONT = _wxPyStockCursor(StockGDI.FONT_ITALIC)
NORMAL_FONT = _wxPyStockCursor(StockGDI.FONT_NORMAL)
SMALL_FONT = _wxPyStockCursor(StockGDI.FONT_SMALL)
SWISS_FONT = _wxPyStockCursor(StockGDI.FONT_SWISS)
BLACK_DASHED_PEN = _wxPyStockPen(StockGDI.PEN_BLACKDASHED)
BLACK_PEN = _wxPyStockPen(StockGDI.PEN_BLACK)
CYAN_PEN = _wxPyStockPen(StockGDI.PEN_CYAN)
GREEN_PEN = _wxPyStockPen(StockGDI.PEN_GREEN)
GREY_PEN = _wxPyStockPen(StockGDI.PEN_GREY)
LIGHT_GREY_PEN = _wxPyStockPen(StockGDI.PEN_LIGHTGREY)
MEDIUM_GREY_PEN = _wxPyStockPen(StockGDI.PEN_MEDIUMGREY)
RED_PEN = _wxPyStockPen(StockGDI.PEN_RED)
TRANSPARENT_PEN = _wxPyStockPen(StockGDI.PEN_TRANSPARENT)
WHITE_PEN = _wxPyStockPen(StockGDI.PEN_WHITE)
BLACK_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_BLACK)
BLUE_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_BLUE)
CYAN_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_CYAN)
GREEN_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_GREEN)
GREY_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_GREY)
LIGHT_GREY_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_LIGHTGREY)
MEDIUM_GREY_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_MEDIUMGREY)
RED_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_RED)
TRANSPARENT_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_TRANSPARENT)
WHITE_BRUSH = _wxPyStockBrush(StockGDI.BRUSH_WHITE)
BLACK = _wxPyStockColour(StockGDI.COLOUR_BLACK)
BLUE = _wxPyStockColour(StockGDI.COLOUR_BLUE)
CYAN = _wxPyStockColour(StockGDI.COLOUR_CYAN)
GREEN = _wxPyStockColour(StockGDI.COLOUR_GREEN)
LIGHT_GREY = _wxPyStockColour(StockGDI.COLOUR_LIGHTGREY)
RED = _wxPyStockColour(StockGDI.COLOUR_RED)
WHITE = _wxPyStockColour(StockGDI.COLOUR_WHITE)
CROSS_CURSOR = _wxPyStockCursor(StockGDI.CURSOR_CROSS)
HOURGLASS_CURSOR = _wxPyStockCursor(StockGDI.CURSOR_HOURGLASS)
STANDARD_CURSOR = _wxPyStockCursor(StockGDI.CURSOR_STANDARD)
}
%immutable;
%threadWrapperOff;
@ -163,29 +135,6 @@ const wxColour wxNullColour;
%mutable;
// %inline {
// const wxBitmap& _wxPyInitNullBitmap() { return wxNullBitmap; }
// const wxIcon& _wxPyInitNullIcon() { return wxNullIcon; }
// const wxCursor& _wxPyInitNullCursor() { return wxNullCursor; }
// const wxPen& _wxPyInitNullPen() { return wxNullPen; }
// const wxBrush& _wxPyInitNullBrush() { return wxNullBrush; }
// const wxPalette& _wxPyInitNullPalette() { return wxNullPalette; }
// const wxFont& _wxPyInitNullFont() { return wxNullFont; }
// const wxColour& _wxPyInitNullColour() { return wxNullColour; }
// }
// %pythoncode {
// NullBitmap = _wxPyMakeDelayedInitWrapper(_wxPyInitNullBitmap)()
// NullIcon = _wxPyMakeDelayedInitWrapper(_wxPyInitNullIcon)()
// NullCursor = _wxPyMakeDelayedInitWrapper(_wxPyInitNullCursor)()
// NullPen = _wxPyMakeDelayedInitWrapper(_wxPyInitNullPen)()
// NullBrush = _wxPyMakeDelayedInitWrapper(_wxPyInitNullBrush)()
// NullPalette = _wxPyMakeDelayedInitWrapper(_wxPyInitNullPalette)()
// NullFont = _wxPyMakeDelayedInitWrapper(_wxPyInitNullFont)()
// NullColour = _wxPyMakeDelayedInitWrapper(_wxPyInitNullColour)()
// }
//---------------------------------------------------------------------------
@ -280,6 +229,25 @@ public:
}
%pythoncode {
%# This function makes a class used to do delayed initialization of some
%# stock wx objects. When they are used the first time then an init function
%# is called to make the real instance, which is then used to replace the
%# original instance and class seen by the programmer.
def _wxPyMakeDelayedInitWrapper(initFunc):
class _wxPyStockObjectWrapper(object):
def __init__(self, *args):
self._args = args
def __getattr__(self, name):
obj = initFunc(*self._args)
self.__class__ = obj.__class__
self.__dict__ = obj.__dict__
return getattr(self, name)
def __str__(self):
return self.__getattr__("__str__")()
def __repr__(self):
return self.__getattr__("__repr__")()
return _wxPyStockObjectWrapper
wxTheFontList = _wxPyMakeDelayedInitWrapper(_wxPyInitTheFontList)()
wxThePenList = _wxPyMakeDelayedInitWrapper(_wxPyInitThePenList)()
wxTheBrushList = _wxPyMakeDelayedInitWrapper(_wxPyInitTheBrushList)()

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@ -15,6 +15,7 @@
%{
#include "wx/wxPython/wxPython_int.h"
#include "wx/wxPython/pyclasses.h"
#include "wx/wxPython/twoitem.h"
%}

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@ -16,6 +16,7 @@
#include "wx/wxPython/wxPython_int.h"
#include "wx/wxPython/pyistream.h"
#include "wx/wxPython/swigver.h"
#include "wx/wxPython/twoitem.h"
#ifdef __WXMSW__
#include <wx/msw/private.h>
@ -469,8 +470,19 @@ void wxPyApp::_BootstrapApp()
// It's now ok to generate exceptions for assertion errors.
wxPythonApp->SetStartupComplete(true);
// Call the Python wxApp's OnInit function
// Call the Python wxApp's OnPreInit and OnInit functions
blocked = wxPyBeginBlockThreads();
if (wxPyCBH_findCallback(m_myInst, "OnPreInit")) {
PyObject* method = m_myInst.GetLastFound();
PyObject* argTuple = PyTuple_New(0);
retval = PyEval_CallObject(method, argTuple);
m_myInst.clearRecursionGuard(method);
Py_DECREF(argTuple);
Py_DECREF(method);
if (retval == NULL)
goto error;
}
if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
PyObject* method = m_myInst.GetLastFound();