C
Qt Quick Ultralite 仪表盘示例
/****************************************************************************** ** ** Copyright (C) 2023 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Quick Ultralite module. ** ** $QT_BEGIN_LICENSE:COMM$ ** ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see http://www.qt.io/terms-conditions. For further ** information use the contact form at http://www.qt.io/contact-us. ** ** $QT_END_LICENSE$ ** ******************************************************************************/#pragma once #ifdef __cplusplus #include <qul/eventqueue.h> #include <qul/property.h> #include <qul/singleton.h> #else #include <stdbool.h> #endif #ifdef __cplusplus struct VehicleStatus : public Qul::Singleton<VehicleStatus>, public Qul::EventQueue<bool> { void onEvent(const bool &value) { // Dummy event queue to trigger UI updates (void) value; } Qul::Property<int> speed; Qul::Property<double> tripMeter; Qul::Signal<void(bool leftBlinkerState)> leftBlinkerStateChange; Qul::Signal<void(bool rightBlinkerState)> rightBlinkerStateChange; }; extern "C" { #endif void qul_application_set_speed(int speed); void qul_application_set_trip_meter(double tripMeter); void qul_application_set_left_blinker_state(bool state); void qul_application_set_right_blinker_state(bool state); void qul_application_send_value_change_event(void); #ifdef __cplusplus } #endif