多语言网站建设推广,wordpress 4.7.0,花都微网站建设,怎么做的英文网站本例由《qt开发环境 - 简易二进制文件打开#xff0c;串口自发自收》更改来。#xff08;由qt官方terminal demo 修改#xff09;
实现功能#xff1a;打开.bin文件#xff0c;显示文件内容 通过串口按固定字节大小发送文件 显示串口收到的内容
下面是源代码#xff1a…本例由《qt开发环境 - 简易二进制文件打开串口自发自收》更改来。由qt官方terminal demo 修改
实现功能打开.bin文件显示文件内容 通过串口按固定字节大小发送文件 显示串口收到的内容
下面是源代码
代码下载地址http://download.csdn.net/download/zn2857/10194028 /****************************************************************************
**
** Copyright (C) 2012 Denis Shienkov denis.shienkovgmail.com
** Copyright (C) 2012 Laszlo Papp lpappkde.org
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtSerialPort module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
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** the documentation and/or other materials provided with the
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** * Neither the name of The Qt Company Ltd nor the names of its
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****************************************************************************/#include mainwindow.h
#include ui_mainwindow.h
//#include console.h
#include settingsdialog.h#include QMessageBox
#include QLabel
#include QtSerialPort/QSerialPort#include QFile
#include QFileDialog
#include QDir
#include QTextStream
#include QDataStream
#include QTimer#define APP_DISPLAY_SIZE 64//! [0]
MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow)
{
//! [0]ui-setupUi(this);
// console new Console;
// console-setEnabled(false);
// setCentralWidget(console);
//! [1]serial new QSerialPort(this);
//! [1]settings new SettingsDialog;ui-actionConnect-setEnabled(true);ui-actionDisconnect-setEnabled(false);ui-actionQuit-setEnabled(true);ui-actionConfigure-setEnabled(true);status new QLabel;ui-statusBar-addWidget(status);initActionsConnections();connect(serial, static_castvoid (QSerialPort::*)(QSerialPort::SerialPortError)(QSerialPort::error),this, MainWindow::handleError);//! [2]connect(serial, QSerialPort::readyRead, this, MainWindow::readData);
//! [2]
// connect(console, Console::getData, this, MainWindow::writeData);
//! [3]timer new QTimer(this);connect(timer,SIGNAL(timeout()),this,SLOT(timerTransDate()));ulNum 0;
// timer-start(1000);
// setCentralWidget(MainWindow);
}
//! [3]MainWindow::~MainWindow()
{delete settings;delete ui;
}//! [4]
void MainWindow::openSerialPort()
{SettingsDialog::Settings p settings-settings();serial-setPortName(p.name);serial-setBaudRate(p.baudRate);serial-setDataBits(p.dataBits);serial-setParity(p.parity);serial-setStopBits(p.stopBits);serial-setFlowControl(p.flowControl);if (serial-open(QIODevice::ReadWrite)) {
// console-setEnabled(true);
// console-setLocalEchoEnabled(p.localEchoEnabled);ui-actionConnect-setEnabled(false);ui-actionDisconnect-setEnabled(true);ui-actionConfigure-setEnabled(false);showStatusMessage(tr(Connected to %1 : %2, %3, %4, %5, %6).arg(p.name).arg(p.stringBaudRate).arg(p.stringDataBits).arg(p.stringParity).arg(p.stringStopBits).arg(p.stringFlowControl));} else {QMessageBox::critical(this, tr(Error), serial-errorString());showStatusMessage(tr(Open error));}
}
//! [4]//! [5]
void MainWindow::closeSerialPort()
{if (serial-isOpen())serial-close();
// console-setEnabled(false);ui-actionConnect-setEnabled(true);ui-actionDisconnect-setEnabled(false);ui-actionConfigure-setEnabled(true);showStatusMessage(tr(Disconnected));
}
//! [5]void MainWindow::about()
{QMessageBox::about(this, tr(About Simple Terminal),tr(The bSimple Terminal/b example demonstrates how to use the Qt Serial Port module in modern GUI applications using Qt, with a menu bar, toolbars, and a status bar.));
}//! [6]
void MainWindow::writeData(const QByteArray data)
{serial-write(data);
}
//! [6]//! [7]
void MainWindow::readData()
{
// QByteArray data serial-readAll();// console-putData(data);QByteArray temp serial-readAll();QString buf;if(!temp.isEmpty()){ui-textBrowser-setTextColor(Qt::black);
// if(chrReceive-isChecked()){
// buf temp;
// }else if(hexReceive-isChecked()){for(int i 0; i temp.count(); i){QString s;s.sprintf(%02X , (unsigned char)temp.at(i));buf s;}
// }
// ui-textBrowser-setText(ui-textBrowser-document()-toPlainText() buf);ui-textBrowser-append(buf);QTextCursor cursor ui-textBrowser-textCursor();cursor.movePosition(QTextCursor::End);ui-textBrowser-setTextCursor(cursor);ui-receivebyteLcdNumber-display(ui-receivebyteLcdNumber-value() temp.size());
// ui-statusBar-showMessage(tr(成功读取%1字节数据).arg(temp.size()));}}
//! [7]//! [8]
void MainWindow::handleError(QSerialPort::SerialPortError error)
{if (error QSerialPort::ResourceError) {QMessageBox::critical(this, tr(Critical Error), serial-errorString());closeSerialPort();}
}
//! [8]void MainWindow::initActionsConnections()
{connect(ui-actionConnect, QAction::triggered, this, MainWindow::openSerialPort);connect(ui-actionDisconnect, QAction::triggered, this, MainWindow::closeSerialPort);connect(ui-actionQuit, QAction::triggered, this, MainWindow::close);connect(ui-actionConfigure, QAction::triggered, settings, SettingsDialog::show);connect(ui-actionClear, QAction::triggered, this, MainWindow::clearTextBrowser);connect(ui-actionAbout, QAction::triggered, this, MainWindow::about);connect(ui-actionAboutQt, QAction::triggered, qApp, QApplication::aboutQt);
}void MainWindow::showStatusMessage(const QString message)
{status-setText(message);
}void MainWindow::on_pushButton_clicked()
{timer-start(500);
}void MainWindow::clearTextBrowser()
{ui-textBrowser-setText(NULL);
}void MainWindow::on_openFileButton_clicked()
{//get file namefileName QFileDialog::getOpenFileName(this,Open File,QDir::currentPath());
// qDebug() fileName is fileName;ui-filePathLineEdit-setText (fileName);if(fileName.isEmpty()){QMessageBox::information(this,Error Message, Please Select a Text File);return;}QFileInfo *pcsfileInfo new QFileInfo(fileName);binSize pcsfileInfo-size ();QFile* file new QFile;file-setFileName(fileName);bool ok file-open(QIODevice::ReadOnly);if(ok){
// QTextStream in(file);
// ui-textEdit-setText(in.readAll());//read all context from the file}else{QMessageBox::information(this,Error Message, File Open Error file-errorString());return;}QDataStream in(file);char * binByte new char[binSize];in.setVersion (QDataStream::Qt_5_9);ui-statusBar-showMessage(tr(准备读取数据));in.readRawData (binByte, binSize); //读出文件到缓存ui-statusBar-showMessage(tr(读取数据完毕));tempByte new QByteArray(binByte, binSize); //格式转换QString *tempStr new QString(tempByte-toHex ().toUpper ());//显示文件内容qint8 cnt 1;qint16 kcnt 0;for(qint64 i 2; i tempStr-size ();){tempStr-insert (i, );//每个字节之间空一格i 3;cnt;if(cnt 8)//每8个字节空2格{tempStr-insert (i, );i 1;}if(cnt 16)//每16个字节空一格{cnt 1;kcnt ;if(kcnt 64)//每64行即1K数据空一行{kcnt 0;tempStr-insert (i, \n);i;}tempStr-insert (i, \n);i 3; //避免换行后开头一个空格,换行相当于从新插入}}ui-statusBar-showMessage(tr(准备显示));ui-fileViewPlainTextEdit-insertPlainText (*tempStr);ui-statusBar-showMessage(tr(显示完毕));// timer-start(1000);
// serial-write(binByte,25);delete tempByte;delete[] binByte;delete tempStr;file-close ();delete file;
}
void MainWindow::timerTransDate()
{qint16 temp 0; //剩余待传数据qint16 FileSendEndFg;QFile *binFile new QFile(fileName);binFile-open (QIODevice::ReadOnly);binFile-seek (ulNum * 1024);QDataStream in(binFile);char * binByte new char[binSize];in.setVersion (QDataStream::Qt_5_9);in.readRawData (binByte, binSize); //读出文件到缓存char * binLitByte new char[64];//bin缓存static int binfileseek 0;if(binfileseek binSize){binfileseek 0;timer-stop();return;}memcpy (binLitByte, binByte binfileseek, 64);binfileseek 64;temp binSize - 1024*ulNum;serial-write(binLitByte,64);delete binByte;}
