mkxp-freebird/binding-mri/disposable-binding.h

99 lines
2.3 KiB
C++

/*
** disposable-binding.h
**
** This file is part of mkxp.
**
** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DISPOSABLEBINDING_H
#define DISPOSABLEBINDING_H
#include "disposable.h"
#include "binding-util.h"
/* 'Children' are disposables that are disposed together
* with their parent. Currently this is only used by Viewport
* in RGSS1.
* FIXME: Disable this behavior when RGSS2 or 3 */
inline void
disposableAddChild(VALUE disp, VALUE child)
{
VALUE children = rb_iv_get(disp, "children");
if (NIL_P(children))
{
children = rb_ary_new();
rb_iv_set(disp, "children", children);
}
/* Assumes children are never removed until destruction */
rb_ary_push(children, child);
}
inline void
disposableDisposeChildren(VALUE disp)
{
VALUE children = rb_iv_get(disp, "children");
if (NIL_P(children))
return;
ID dispFun = rb_intern("dispose");
/* Note: RMXP doesn't call overridden 'dispose' methods here */
for (long i = 0; i < RARRAY_LEN(children); ++i)
rb_funcall2(rb_ary_entry(children, i), dispFun, 0, 0);
}
template<class C>
RB_METHOD(disposableDispose)
{
RB_UNUSED_PARAM;
C *c = static_cast<C*>(RTYPEDDATA_DATA(self));
/* Nothing to do if already disposed */
if (!c)
return Qnil;
/* Inform core */
c->wasDisposed();
disposableDisposeChildren(self);
delete c;
setPrivateData(self, 0);
return Qnil;
}
RB_METHOD(disposableIsDisposed)
{
RB_UNUSED_PARAM;
return rb_bool_new(RTYPEDDATA_DATA(self) == 0);
}
template<class C>
static void disposableBindingInit(VALUE klass)
{
_rb_define_method(klass, "dispose", disposableDispose<C>);
_rb_define_method(klass, "disposed?", disposableIsDisposed);
}
#endif // DISPOSABLEBINDING_H