智能家居的客户端（QT客户端代码）

#include "mainwindow.h" #include "ui_mianwindow.h" #include "ipwindow.h" #include <QTcpSocket> LconWindow::LconWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::LconWindow) { pic_socket = NULL; pic_timer = NULL; env_socket = NULL; env_timer = NULL; ui->setupUi(this); ui->btn_Start->setEnabled(true); ui->btn_Stop->setEnabled(false); ui->btn_back->setEnabled(false); ui->btn_light->setEnabled(false); ui->btn_fan->setEnabled(false); ui->btn_buzz->setEnabled(false); ui->btn_shuma->setEnabled(false); if (env_socket == NULL){ env_socket = new QTcpSocket(); connect(env_socket, SIGNAL(connected()), this, SLOT(net_env_connected())); connect(env_socket, SIGNAL(disconnected()), this, SLOT(net__env_disconnected())); connect(env_socket, SIGNAL(readyRead()), this, SLOT(net_recv_env())); } if (env_timer == NULL) { env_timer = new QTimer(this); connect(env_timer, SIGNAL(timeout()), this, SLOT(net_send_env())); } env_socket->connectToHost(ip, port); } LconWindow::~LconWindow() { delete ui; } #define REQ_DATA_SIZE 32 #define HDR_DATA_SIZE 128 void LconWindow::net_connected() { pic_timer->start(10); state = 0; } void LconWindow::net_disconnected() { if (pic_timer->isActive()){ pic_timer->stop(); } pic_socket->close(); ui->btn_Start->setEnabled(true); ui->btn_Stop->setEnabled(false); } void LconWindow::net_send_pic() { int ret; char request[REQ_DATA_SIZE] = {0}; if (state == 0) { memset(request, 0, sizeof(request)); strcat(request, "PIC_SEND"); ret = pic_socket->write(request, sizeof(request)); if (ret != sizeof(request)) { qDebug() << "send request failed"; pic_timer->stop(); pic_socket->close(); ui->btn_Start->setEnabled(true); ui->btn_Stop->setEnabled(false); } pic_socket->flush(); state = 1; } } void LconWindow::net_recv_data() { int ret; char response[HDR_DATA_SIZE] = {0}; switch (state) { case 1: if (pic_socket->bytesAvailable() < sizeof(response)) return; ret = pic_socket->read(response, sizeof(response)); if (ret != sizeof(response)) { qDebug() << "recv response failed"; goto err; } ret = sscanf(response, "%dlen", &piclen); if (ret != 1) { qDebug() << "response format error"; goto err; } // qDebug()<<"piclen"<<piclen; state = 2; if (pic_socket->bytesAvailable() >= piclen) goto readdat; break; case 2: readdat: if (pic_socket->bytesAvailable() < piclen){ // qDebug()<<pic_socket->bytesAvailable(); return; } if (piclen > 0) { unsigned int ret; memset(picbuf, 0, sizeof(picbuf)); ret = pic_socket->read(picbuf, piclen); if (ret < piclen) { qDebug() << "recv pic failed"; pic_timer->stop(); pic_socket->close(); state = 0; } // qDebug()<<"show pic"; QPixmap pixmap; pixmap.loadFromData((const uchar *)picbuf, piclen, "JPEG"); ui->lab_pic->setPixmap(pixmap); state = 0; } state = 0; break; } return; err: pic_timer->stop(); pic_socket->close(); state = 0; ui->btn_Start->setEnabled(true); ui->btn_Stop->setEnabled(false); return; } void LconWindow::on_btn_Start_clicked() { ui->btn_Start->setEnabled(false); ui->btn_Stop->setEnabled(true); if(socket != NULL) socket->close(); if (pic_socket == NULL){ pic_socket = new QTcpSocket(); connect(pic_socket, SIGNAL(connected()), this, SLOT(net_connected())); connect(pic_socket, SIGNAL(disconnected()), this, SLOT(net_disconnected())); connect(pic_socket, SIGNAL(readyRead()), this, SLOT(net_recv_data())); } if (pic_timer == NULL) { pic_timer = new QTimer(this); connect(pic_timer, SIGNAL(timeout()), this, SLOT(net_send_pic())); } pic_socket->connectToHost(ip, port); state = 0; } void LconWindow::net_env_connected() { ui->btn_light->setText("开灯"); ui->btn_fan->setText("开风扇"); ui->btn_buzz->setText("开警报"); ui->btn_shuma->setText("开数码"); ui->btn_light->setEnabled(true); ui->btn_fan->setEnabled(true); ui->btn_buzz->setEnabled(true); ui->btn_shuma->setEnabled(true); env_timer = new QTimer(this); connect(env_timer, SIGNAL(timeout()), this, SLOT(net_send_env())); env_timer->start(1000); } void LconWindow::net_env_disconnected() { ui->btn_light->setText("开灯"); ui->btn_fan->setText("开风扇"); ui->btn_buzz->setText("开警报"); ui->btn_shuma->setText("开数码"); if(env_timer->isActive()) env_timer->stop(); env_socket->close(); env_socket = NULL; } void LconWindow::net_send_env() { char req_buf[] = "ENV_SEND"; int ret = env_socket->write(req_buf, sizeof(req_buf)); if (ret != sizeof(req_buf)){ perror("ENV_SEND"); } // qDebug()<<"ret = "<< ret; env_socket->flush(); } void LconWindow::net_recv_env() { char buf[128]; char string[6] = {0}; env_socket->read(buf, sizeof(buf)); sscanf(buf, "%did%dt%dh%dl%dx%dy%dz%dled%dfan%dbuzz%dsev", &id, &tmp, &hum, &light, &x, &y, &z, &led, &fan, &buzz, &sev_led); // qDebug()<<"buf:"<<buf; /*实时刷新显示环境信息*/ snprintf(string, sizeof(string), "%d", id); ui->edt_id->setText(string); snprintf(string, sizeof(string), "%d", tmp); ui->edt_tem->setText(string); snprintf(string, sizeof(string), "%d", hum); ui->edt_hum->setText(string); snprintf(string, sizeof(string), "%d", light); ui->edt_light->setText(string); snprintf(string, sizeof(string), "%d", x); ui->edt_x->setText(string); snprintf(string, sizeof(string), "%d", y); ui->edt_y->setText(string); snprintf(string, sizeof(string), "%d", z); ui->edt_z->setText(string); // /*实时刷新控制按建状态*/ // if(fan == 0){ // ui->btn_fan->setText("开风扇"); // } else { // ui->btn_fan->setText("关风扇"); // } // if(sev_led == 0){ // ui->btn_shu->setText("关数码"); // } else { // ui->btn_shu->setText("开数码"); // } } void LconWindow::on_btn_light_clicked() { static bool state1 = false; if (state1 == false){ env_socket->write("LIGHT_ON", sizeof("LIGHT_ON")); state1 = true; ui->btn_light->setText("关灯"); } else { env_socket->write("LIGHT_OFF", sizeof("LIGHT_OFF")); state1 = false; ui->btn_light->setText("开灯"); } } void LconWindow::on_btn_fan_clicked() { static bool state1 = false; if (state1 == false){ env_socket->write("FAN_ON", sizeof("FAN_ON")); state1 = true; ui->btn_fan->setText("关风扇"); } else { env_socket->write("FAN_OFF", sizeof("FAN_OFF")); state1 = false; ui->btn_fan->setText("开风扇"); } } void LconWindow::on_btn_buzz_clicked() { static bool state1 = false; if (state1 == false){ env_socket->write("BUZZ_ON", sizeof("BUZZ_ON")); state1 = true; ui->btn_buzz->setText("关警报"); } else { env_socket->write("BUZZ_OFF", sizeof("BUZZ_OFF")); state1 = false; ui->btn_buzz->setText("开警报"); } } void LconWindow::on_btn