C++ DirAccess::dir_exists方法代码示例

void DependencyRemoveDialog::ok_pressed() {

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	for (Map<String, TreeItem *>::Element *E = files.front(); E; E = E->next()) {
		if (da->dir_exists(E->key())) {
			String path = OS::get_singleton()->get_resource_dir() + E->key().replace_first("res://", "/");
			OS::get_singleton()->move_path_to_trash(path);
			EditorFileSystem::get_singleton()->scan();
		} else {
			if (ResourceCache::has(E->key())) {
				Resource *res = ResourceCache::get(E->key());
				res->set_path(""); //clear reference to path
			}
			da->remove(E->key());
			EditorFileSystem::get_singleton()->update_file(E->key());
		}
	}
	memdelete(da);
}

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);
		}
	}
}

void ScriptCreateDialog::_path_changed(const String &p_path) {

	is_path_valid = false;
	is_new_script_created = true;
	String p = p_path;

	if (p == "") {
		_msg_path_valid(false, TTR("Path is empty"));
		_update_dialog();
		return;
	}

	p = ProjectSettings::get_singleton()->localize_path(p);
	if (!p.begins_with("res://")) {
		_msg_path_valid(false, TTR("Path is not local"));
		_update_dialog();
		return;
	}

	if (p.find("/") || p.find("\\")) {
		DirAccess *d = DirAccess::create(DirAccess::ACCESS_RESOURCES);
		if (d->change_dir(p.get_base_dir()) != OK) {
			_msg_path_valid(false, TTR("Invalid base path"));
			memdelete(d);
			_update_dialog();
			return;
		}
		memdelete(d);
	}

	/* Does file already exist */

	DirAccess *f = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	if (f->dir_exists(p)) {
		is_new_script_created = false;
		is_path_valid = false;
		_msg_path_valid(false, TTR("Directory of the same name exists"));
	} else if (f->file_exists(p)) {
		is_new_script_created = false;
		is_path_valid = true;
		_msg_path_valid(true, TTR("File exists, will be reused"));
	} else {
		path_error_label->set_text("");
	}
	memdelete(f);
	_update_dialog();

	/* Check file extension */

	String extension = p.get_extension();
	List<String> extensions;

	// get all possible extensions for script
	for (int l = 0; l < language_menu->get_item_count(); l++) {
		ScriptServer::get_language(l)->get_recognized_extensions(&extensions);
	}

	bool found = false;
	bool match = false;
	int index = 0;
	for (List<String>::Element *E = extensions.front(); E; E = E->next()) {
		if (E->get().nocasecmp_to(extension) == 0) {
			//FIXME (?) - changing language this way doesn't update controls, needs rework
			//language_menu->select(index); // change Language option by extension
			found = true;
			if (E->get() == ScriptServer::get_language(language_menu->get_selected())->get_extension()) {
				match = true;
			}
			break;
		}
		index++;
	}

	if (!found) {
		_msg_path_valid(false, TTR("Invalid extension"));
		_update_dialog();
		return;
	}

	if (!match) {
		_msg_path_valid(false, TTR("Wrong extension chosen"));
		_update_dialog();
		return;
	}

	/* All checks passed */

	is_path_valid = true;
	_update_dialog();
}