Hi,
I noticed that the second method of wxImage::GetAlpha() is missing. AFAICS wxLua
only has the first one. So I've quickly adapted this for wxLua. Here's the code
in
case you want to merge this with the official branch:
This goes to bindings/wxwidgets/wxcore_image.i:
// %override [Lua string] wxImage::GetAlpha() const;
// C++ Func: unsigned char* GetAlpha() const;
%override_name wxLua_wxImage_GetAlphaData unsigned char* GetAlpha() const;
And this goes to bindings/wxwidgets/wxcore_override.hpp:
%override wxLua_wxImage_GetAlphaData
// unsigned char* GetAlpha() const
static int LUACALL wxLua_wxImage_GetAlphaData(lua_State *L)
{
// get this
wxImage * self = (wxImage *)wxluaT_getuserdatatype(L, 1, wxluatype_wxImage);
// call GetAlpha
char* returns = (char*)self->GetAlpha();
if(returns) {
// push the result pointer
lua_pushlstring(L, returns, self->GetWidth()*self->GetHeight());
} else {
wxluaT_pushuserdatatype(L, NULL, wxluatype_NULL, true, true);
}
return 1;
}
%end
I'm not sure if the wxluatype_NULL return is consistent with wxLua's standard.
What is the function expected to return if wxImage::GetAlpha() returns NULL?
Currently it returns wx.NULL but of course it could also be made to return NIL,
an empty string, or even nothing here.... not sure how wxLua is supposed to
behave in this case.
--
Best regards,
Andreas Falkenhahn mailto:andr...@falkenhahn.com
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