pandemonium_engine/scene/resources/text_file.cpp

/*************************************************************************/
/*  text_file.cpp                                                        */
/*************************************************************************/
/*                         This file is part of:                         */
/*                          PANDEMONIUM ENGINE                           */
/*             https://github.com/Relintai/pandemonium_engine            */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar.                              */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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/*************************************************************************/

#include "text_file.h"

#include "core/os/file_access.h"

bool TextFile::has_text() const {
	return text != "";
}

String TextFile::get_text() const {
	return text;
}

void TextFile::set_text(const String &p_code) {
	text = p_code;
}

void TextFile::reload_from_file() {
	load_text(path);
}

Error TextFile::load_text(const String &p_path) {
	PoolVector<uint8_t> sourcef;
	Error err;
	FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);

	ERR_FAIL_COND_V_MSG(err, err, "Cannot open TextFile '" + p_path + "'.");

	uint64_t len = f->get_len();
	sourcef.resize(len + 1);
	PoolVector<uint8_t>::Write w = sourcef.write();
	uint64_t r = f->get_buffer(w.ptr(), len);
	f->close();
	memdelete(f);
	ERR_FAIL_COND_V(r != len, ERR_CANT_OPEN);
	w[len] = 0;

	String s;
	ERR_FAIL_COND_V_MSG(s.parse_utf8((const char *)w.ptr()), ERR_INVALID_DATA, "Script '" + p_path + "' contains invalid unicode (UTF-8), so it was not loaded. Please ensure that scripts are saved in valid UTF-8 unicode.");
	text = s;
	path = p_path;
	return OK;
}