C++ DirAccess::current_is_dir方法代码示例

void FindInFiles::_scan_dir(String path, PoolStringArray &out_folders) {

	DirAccess *dir = DirAccess::open(path);
	if (dir == NULL) {
		print_line("Cannot open directory! " + path);
		return;
	}

	dir->list_dir_begin();

	for (int i = 0; i < 1000; ++i) {
		String file = dir->get_next();

		if (file == "")
			break;

		// Ignore special dirs and hidden dirs (such as .git and .import)
		if (file == "." || file == ".." || file.begins_with("."))
			continue;

		if (dir->current_is_dir())
			out_folders.append(file);

		else {
			String file_ext = file.get_extension();
			if (_extension_filter.has(file_ext)) {
				_files_to_scan.push_back(path.plus_file(file));
			}
		}
	}
}

void RotatedFileLogger::clear_old_backups() {
	int max_backups = max_files - 1; // -1 for the current file

	String basename = base_path.get_file().get_basename();
	String extension = "." + base_path.get_extension();

	DirAccess *da = DirAccess::open(base_path.get_base_dir());
	if (!da) {
		return;
	}

	da->list_dir_begin();
	String f = da->get_next();
	Set<String> backups;
	while (f != String()) {
		if (!da->current_is_dir() && f.begins_with(basename) && f.ends_with(extension) && f != base_path.get_file()) {
			backups.insert(f);
		}
		f = da->get_next();
	}
	da->list_dir_end();

	if (backups.size() > max_backups) {
		// since backups are appended with timestamp and Set iterates them in sorted order,
		// first backups are the oldest
		int to_delete = backups.size() - max_backups;
		for (Set<String>::Element *E = backups.front(); E && to_delete > 0; E = E->next(), --to_delete) {
			da->remove(E->get());
		}
	}

	memdelete(da);
}

MainLoop *test() {

	print_line("this is test io");
	DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
	da->change_dir(".");
	print_line("Opening current dir " + da->get_current_dir());
	String entry;
	da->list_dir_begin();
	while ((entry = da->get_next()) != "") {

		print_line("entry " + entry + " is dir: " + Variant(da->current_is_dir()));
	};
	da->list_dir_end();

	RES texture = ResourceLoader::load("test_data/rock.png");
	ERR_FAIL_COND_V(texture.is_null(), NULL);

	ResourceSaver::save("test_data/rock.xml", texture);

	print_line("localize paths");
	print_line(ProjectSettings::get_singleton()->localize_path("algo.xml"));
	print_line(ProjectSettings::get_singleton()->localize_path("c:\\windows\\algo.xml"));
	print_line(ProjectSettings::get_singleton()->localize_path(ProjectSettings::get_singleton()->get_resource_path() + "/something/something.xml"));
	print_line(ProjectSettings::get_singleton()->localize_path("somedir/algo.xml"));

	{

		FileAccess *z = FileAccess::open("test_data/archive.zip", FileAccess::READ);
		int len = z->get_len();
		Vector<uint8_t> zip;
		zip.resize(len);
		z->get_buffer(&zip[0], len);
		z->close();
		memdelete(z);

		FileAccessMemory::register_file("a_package", zip);
		FileAccess::make_default<FileAccessMemory>(FileAccess::ACCESS_RESOURCES);
		FileAccess::make_default<FileAccessMemory>(FileAccess::ACCESS_FILESYSTEM);
		FileAccess::make_default<FileAccessMemory>(FileAccess::ACCESS_USERDATA);

		print_line("archive test");
	};

	print_line("test done");

	return memnew(TestMainLoop);
}

void ProjectManager::_files_dropped(StringArray p_files, int p_screen) {
	Set<String> folders_set;
	DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
	for (int i = 0; i < p_files.size(); i++) {
		String file = p_files[i];
		folders_set.insert(da->dir_exists(file) ? file : file.get_base_dir());
	}
	memdelete(da);
	if (folders_set.size()>0) {
		StringArray folders;
		for (Set<String>::Element *E=folders_set.front();E;E=E->next()) {
			folders.append(E->get());
		}

		bool confirm = true;
		if (folders.size()==1) {
			DirAccess *dir = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
			if (dir->change_dir(folders[0])==OK) {
				dir->list_dir_begin();
				String file = dir->get_next();
				while(confirm && file!=String()) {
					if (!da->current_is_dir() && file.ends_with("engine.cfg")) {
						confirm = false;
					}
					file = dir->get_next();
				}
				dir->list_dir_end();
			}
			memdelete(dir);
		}
		if (confirm) {
			multi_scan_ask->get_ok()->disconnect("pressed", this, "_scan_multiple_folders");
			multi_scan_ask->get_ok()->connect("pressed", this, "_scan_multiple_folders", varray(folders));
			multi_scan_ask->set_text(vformat(TTR("You are about the scan %s folders for existing Godot projects. Do you confirm?"), folders.size()));
			multi_scan_ask->popup_centered_minsize();
		} else {
			_scan_multiple_folders(folders);
		}
	}
}

MainLoop* test() {

	print_line("this is test io");
	DirAccess* da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
	da->change_dir(".");
	print_line("Opening current dir "+ da->get_current_dir());
	String entry;
	da->list_dir_begin();
	while ( (entry = da->get_next()) != "") {

		print_line("entry "+entry+" is dir: " + Variant(da->current_is_dir()));
	};
	da->list_dir_end();

	RES texture = ResourceLoader::load("test_data/rock.png");
	ERR_FAIL_COND_V(texture.is_null(), NULL);

	ResourceSaver::save("test_data/rock.xml",texture);

	print_line("localize paths");
	print_line(Globals::get_singleton()->localize_path("algo.xml"));
	print_line(Globals::get_singleton()->localize_path("c:\\windows\\algo.xml"));
	print_line(Globals::get_singleton()->localize_path(Globals::get_singleton()->get_resource_path()+"/something/something.xml"));
	print_line(Globals::get_singleton()->localize_path("somedir/algo.xml"));

	{

		FileAccess* z = FileAccess::open("test_data/archive.zip", FileAccess::READ);
		int len = z->get_len();
		Vector<uint8_t> zip;
		zip.resize(len);
		z->get_buffer(&zip[0], len);
		z->close();
		memdelete(z);

		FileAccessMemory::register_file("a_package", zip);
		FileAccess::make_default<FileAccessMemory>(FileAccess::ACCESS_RESOURCES);
		FileAccess::make_default<FileAccessMemory>(FileAccess::ACCESS_FILESYSTEM);
		FileAccess::make_default<FileAccessMemory>(FileAccess::ACCESS_USERDATA);

		print_line("archive test");
#if 0
		Archive arch;

		Archive::get_singleton()->add_package("a_package");
		FileAccessArchive f;

		print_line("opening for read");
		f._open("file.txt", FileAccess::READ);
		int pos = f.get_pos();
		printf("file has %i bytes, initial pos %i\n", (int)f.get_len(), pos);

		do {
			printf("%c", f.get_8());

		} while (!f.eof_reached());

		print_line("opening for stored seek");
		f.open("seek.bin", FileAccess::READ);
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		f.seek(128);
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());

		print_line("opening for deflated seek");
		f.open("seek_deflated.bin", FileAccess::READ);
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		f.seek(128);
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		f.seek(256);
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		f.seek(4);
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());
		pos = f.get_pos();
		printf("byte at pos %i is %i\n", pos, (int)f.get_8());

		f.close();

		DirAccessArchive d;
		String dir = "../blah1/blah2/blahask/../blah3/.//blah4/";
		printf("changing dir to %s\n", dir.utf8().get_data());
		d.change_dir(dir);
		printf("current dir is %s\n", d.get_current_dir().utf8().get_data());

		FileAccessMemory::cleanup();
//.........这里部分代码省略.........

void EditorPluginSettings::update_plugins() {


	plugin_list->clear();

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	Error err = da->change_dir("res://addons");
	if (err!=OK) {
		memdelete(da);
		return;
	}

	updating=true;

	TreeItem *root = plugin_list->create_item();

	da->list_dir_begin();

	String d = da->get_next();

	Vector<String> plugins;

	while(d!=String()) {

		bool dir = da->current_is_dir();
		String path = "res://addons/"+d+"/plugin.cfg";

		if (dir && FileAccess::exists(path)) {

			plugins.push_back(d);
		}

		d = da->get_next();
	}

	da->list_dir_end();
	memdelete(da);

	plugins.sort();

	Vector<String> active_plugins = GlobalConfig::get_singleton()->get("plugins/active");

	for(int i=0;i<plugins.size();i++) {

		Ref<ConfigFile> cf;
		cf.instance();
		String path = "res://addons/"+plugins[i]+"/plugin.cfg";

		Error err = cf->load(path);

		if (err!=OK) {
			WARN_PRINTS("Can't load plugin config: "+path);
		} else if (!cf->has_section_key("plugin","name")) {
			WARN_PRINTS("Plugin misses plugin/name: "+path);
		} else if (!cf->has_section_key("plugin","author")) {
			WARN_PRINTS("Plugin misses plugin/author: "+path);
		} else if (!cf->has_section_key("plugin","version")) {
			WARN_PRINTS("Plugin misses plugin/version: "+path);
		} else if (!cf->has_section_key("plugin","description")) {
			WARN_PRINTS("Plugin misses plugin/description: "+path);
		} else if (!cf->has_section_key("plugin","script")) {
			WARN_PRINTS("Plugin misses plugin/script: "+path);
		} else {

			String d = plugins[i];
			String name = cf->get_value("plugin","name");
			String author = cf->get_value("plugin","author");
			String version = cf->get_value("plugin","version");
			String description = cf->get_value("plugin","description");
			String script = cf->get_value("plugin","script");

			TreeItem *item = plugin_list->create_item(root);
			item->set_text(0,name);
			item->set_tooltip(0,"Name: "+name+"\nPath: "+path+"\nMain Script: "+script);
			item->set_metadata(0,d);
			item->set_text(1,version);
			item->set_metadata(1,script);
			item->set_text(2,author);
			item->set_metadata(2,description);
			item->set_cell_mode(3,TreeItem::CELL_MODE_RANGE);
			item->set_range_config(3,0,1,1);
			item->set_text(3,"Inactive,Active");
			item->set_editable(3,true);

			if (EditorNode::get_singleton()->is_addon_plugin_enabled(d)) {
				item->set_custom_color(3,Color(0.2,1,0.2));
				item->set_range(3,1);
			} else {
				item->set_custom_color(3,Color(1,0.2,0.2));
				item->set_range(3,0);
			}
		}

	}

	updating=false;

}