118 lines
2.9 KiB
C++
118 lines
2.9 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) 2021 Amaryllis Kulla <amaryllis.kulla@protonmail.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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#include "mruby/array.h"
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#include <string.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(mrb_state *mrb, mrb_value disp, mrb_value child)
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{
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mrb_sym sym = getMrbData(mrb)->symbols[CSchildren];
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mrb_value children = mrb_iv_get(mrb, disp, sym);
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if (mrb_nil_p(children))
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{
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children = mrb_ary_new(mrb);
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mrb_iv_set(mrb, disp, sym, children);
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}
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/* Assumes children are never removed until destruction */
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mrb_ary_push(mrb, children, child);
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}
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inline void
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disposableDisposeChildren(mrb_state *mrb, mrb_value disp)
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{
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MrbData *mrbData = getMrbData(mrb);
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mrb_value children = mrb_iv_get(mrb, disp, mrbData->symbols[CSchildren]);
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if (mrb_nil_p(children))
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return;
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for (mrb_int i = 0; i < RARRAY_LEN(children); ++i)
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mrb_funcall_argv(mrb, mrb_ary_entry(children, i),
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mrbData->symbols[CS_mkxp_dispose_alias], 0, 0);
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}
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template<class C>
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MRB_METHOD(disposableDispose)
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{
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C *d = static_cast<C*>(DATA_PTR(self));
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if (!d)
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return mrb_nil_value();
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if (d->isDisposed())
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return mrb_nil_value();
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if (rgssVer == 1)
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disposableDisposeChildren(mrb, self);
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d->dispose();
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return mrb_nil_value();
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}
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template<class C>
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MRB_METHOD(disposableIsDisposed)
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{
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MRB_UNUSED_PARAM;
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C *d = static_cast<C*>(DATA_PTR(self));
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if (!d)
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return mrb_true_value();
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return mrb_bool_value(d->isDisposed());
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}
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template<class C>
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static void disposableBindingInit(mrb_state *mrb, RClass *klass)
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{
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mrb_define_method(mrb, klass, "dispose", disposableDispose<C>, MRB_ARGS_NONE());
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mrb_define_method(mrb, klass, "disposed?", disposableIsDisposed<C>, MRB_ARGS_NONE());
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if (rgssVer == 1)
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mrb_alias_method(mrb, klass, getMrbData(mrb)->symbols[CS_mkxp_dispose_alias],
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mrb_intern_lit(mrb, "dispose"));
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}
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template<class C>
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inline void
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checkDisposed(mrb_state *mrb, mrb_value self)
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{
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if (mrb_test(disposableIsDisposed<C>(0, self)))
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raiseDisposedAccess(mrb, self);
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}
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#endif // DISPOSABLEBINDING_H
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