add element_build_macro (bcb3023e) · Commits · github_fork / Clip

core/element_factory.cc

+30 −0

Original line number	Diff line number	Diff line
		@@ -72,6 +72,36 @@ ReturnCode element_build_list(
		return element_build_all(env, expr_get_list(expr), elems);
		}

		struct MacroElement {
		ExprStorage expr;
		ElementRef elem;
		};

		ReturnCode element_build_macro(
		const Environment& env,
		ExprStorage expr,
		ElementRef* elem) {
		auto macro = std::make_shared<MacroElement>();
		macro->expr = std::move(expr);

		auto macro_rc = element_build(
		env,
		macro->expr.get(),
		&macro->elem);

		if (!macro_rc) {
		return macro_rc;
		}

		*elem = std::make_shared<Element>();

		(elem)->draw = [macro] (const LayoutInfo& layout, Layer layer) -> ReturnCode {
		return macro->elem->draw(layout, layer);
		};

		return OK;
		}

		void element_bind(
		ElementMap* factory,
		const std::string& name,

+5 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,11 @@ ReturnCode element_build_list(
		const Expr* expr,
		std::vector<ElementRef>* elems);

		ReturnCode element_build_macro(
		const Environment& env,
		ExprStorage expr,
		ElementRef* elem);

		void element_bind(
		ElementMap* factory,
		const std::string& name,