add ElementTree API (de6a5220) · Commits · github_fork / Clip

elements/element_tree.h

0 → 100644

+35 −0

Original line number	Diff line number	Diff line
		/**
		* This file is part of the "FnordMetric" project
		* Copyright (c) 2018 Paul Asmuth
		*
		* FnordMetric is free software: you can redistribute it and/or modify it under
		* the terms of the GNU General Public License v3.0. You should have received a
		* copy of the GNU General Public License along with this program. If not, see
		* <http://www.gnu.org/licenses/>.
		*/
		#pragma once
		#include "utils/return_code.h"
		#include "element.h"
		#include "element_spec.h"

		namespace signaltk {
		class Layer;

		struct ElementTree {
		std::vector<ElementRef> roots;
		};

		ReturnCode buildElementTree(
		const PropertyList& plist,
		ElementTree* tree);

		ReturnCode buildElementTree(
		const std::string& spec,
		ElementTree* tree);

		ReturnCode renderElements(
		const ElementTree& tree,
		Layer* frame);

		} // namespace signaltk

+22 −8

Original line number	Diff line number	Diff line
		@@ -18,7 +18,8 @@
		#include <sys/resource.h>
		#include <sys/file.h>
		#include "signaltk.h"
		#include "elements/context.h"
		#include "elements/element_tree.h"
		#include "graphics/layer.h"
		#include <utils/flagparser.h>
		#include <utils/fileutil.h>
		#include <utils/return_code.h>
		@@ -26,6 +27,10 @@

		using namespace signaltk;

		void printError(const ReturnCode& rc) {
		std::cerr << StringUtil::format("ERROR: $0", rc.getMessage()) << std::endl;
		}

		int main(int argc, const char** argv) {
		FlagParser flag_parser;

		@@ -73,15 +78,24 @@ int main(int argc, const char** argv) {
		return 0;
		}

		auto ctx = context_create_image(1200, 800);
		context_frame(ctx)->clear(Colour{1, 1, 1, 1});
		auto spec = FileUtil::read(flag_in).toString(); // FIXME
		signaltk::ElementTree elems;
		if (auto rc = buildElementTree(spec, &elems); !rc.isSuccess()) {
		printError(rc);
		return EXIT_FAILURE;
		}

		auto rc = context_frame(ctx)->writeToFile(flag_out);
		Layer frame{1200, 800};
		frame.clear(Colour{1, 1, 1, 1});
		if (auto rc = renderElements(elems, &frame); !rc.isSuccess()) {
		printError(rc);
		return EXIT_FAILURE;
		}

		if (rc) {
		std::cerr << StringUtil::format("ERROR: $0\n", "...");
		if (auto rc = frame.writeToFile(flag_out); rc) {
		std::cerr << "ERROR: can't write output file" << std::endl;
		return EXIT_FAILURE;
		} else {
		return EXIT_SUCCESS;
		}

		return EXIT_SUCCESS;
		}