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