SandTable/mainwindow.cpp at master · kay880/SandTable · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    camera=new QCamera(this);
    viewfinder=new QCameraViewfinder(this);
    imageCapture=new QCameraImageCapture(camera);

    ui->ImageView->addWidget(viewfinder);
    ui->ImageCapture->setScaledContents(true);

    camera->setViewfinder(viewfinder);
    camera->start();

    connect(imageCapture, SIGNAL(imageCaptured(int,QImage)), this, SLOT(displayImage(int,QImage)));

    connect(ui->buttonCapture, SIGNAL(clicked()), this, SLOT(captureImage()));
    connect(ui->buttonSave, SIGNAL(clicked()), this, SLOT(saveImage()));
    connect(ui->buttonQuit, SIGNAL(clicked()), qApp, SLOT(quit()));
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::sendMassage(){}

void MainWindow::readMassage()//读tcp缓冲数据
{
    QByteArray data=tcpSocket->readAll();
    ui->clearLineEdit->setText(QString(data));
    ui->textBrowser->setText(QString(data));
}

void MainWindow::displayError(QAbstractSocket::SocketError)//打印错误信息
{
    QMessageBox::warning (this, tr("Warnning"), tcpSocket->errorString ());
    tcpSocket->close ();
    ui->connnectButton->setEnabled (true);
    ui->disconnectButton->setEnabled (false);
    ui->sendButton->setEnabled (false);
}

void MainWindow::on_sendButton_clicked()//发送数据
{
    QString sendmessage;
    sendmessage = ui->sendLineEdit->text();
    QByteArray data;
    data.append(sendmessage);
    tcpSocket->write(data);
}

void MainWindow::on_clearButton_clicked()//清空接受到的数据
{
    ui->clearLineEdit->clear();
    ui->textBrowser->clear();
}

void MainWindow::on_connnectButton_clicked()//连接TCP端口
{
    flag = false;
    if(tcpSocket) delete tcpSocket;//如果有指向其他空间直接删除
    tcpSocket = new QTcpSocket(this);//申请堆空间有TCP发送和接受操作
    tcpIp = ui->IPLineEdit->text();
    tcpPort = ui->portLineEdit->text();
    if(tcpIp==NULL||tcpPort==NULL)//判断IP和PORT是否为空
    {
        QMessageBox msgBox;
        msgBox.setWindowTitle("信息");
        msgBox.setText("IP or PORT is Empty");
        msgBox.exec();
        return;
    }
    tcpSocket->connectToHost(tcpIp,tcpPort.toInt());//连接主机
    connect(tcpSocket,SIGNAL(error(QAbstractSocket::SocketError)),this,
            SLOT(displayError(QAbstractSocket::SocketError)));//错误连接
    connect(tcpSocket,SIGNAL(connected()),this,
            SLOT(connectUpdata()));//更新连接之后按钮的使能
    connect(tcpSocket,SIGNAL(readyRead()),this,
            SLOT(readMassage()));//读取信息的连接
    ui->connnectButton->setEnabled (false);
    ui->disconnectButton->setEnabled (true);


}

void MainWindow::on_disconnectButton_clicked()//断开连接
{
    tcpSocket->abort();
    delete tcpSocket;
    tcpSocket=NULL;
    disconnectUpdata();
}

void MainWindow::connectUpdata()//连接成功信息以及更新
{
    if(!flag)
    {
        QMessageBox msgBox;
        msgBox.setWindowTitle("机器人信息");
        msgBox.setText("机器人握手成功！");
        msgBox.exec();
        ui->connnectButton->setEnabled(false);
        ui->sendButton->setEnabled(true);
        ui->disconnectButton->setEnabled(true);
        ui->IPLineEdit->setEnabled(false);
        ui->portLineEdit->setEnabled(false);
    }
    flag=true;
}

void MainWindow::disconnectUpdata()
{
    ui->connnectButton->setEnabled(true);
    ui->sendButton->setEnabled(false);
    ui->disconnectButton->setEnabled(false);
    ui->IPLineEdit->setEnabled(true);
    ui->portLineEdit->setEnabled(true);
}

/*//////////////////////////////////////////////////////////////*/

void MainWindow::captureImage()
{
    ui->statusBar->showMessage(tr("capturing..."), 1000);
    imageCapture->capture();
}

void MainWindow::displayImage(int , QImage image)
{
    ui->ImageCapture->setPixmap(QPixmap::fromImage(image));

    ui->statusBar->showMessage(tr("capture OK!"), 5000);
}

void MainWindow::saveImage()
{
    QString fileName=QFileDialog::getSaveFileName(this, tr("save file"), QDir::homePath(), tr("jpegfile(*.jpg)"));
    if(fileName.isEmpty()) {
        ui->statusBar->showMessage(tr("save cancel"), 5000);
        return;
    }
    const QPixmap* pixmap=ui->ImageCapture->pixmap();
    if(pixmap) {
        pixmap->save(fileName);
        ui->statusBar->showMessage(tr("save OK"), 5000);
    }
}