CAN ID转换成PGN 基于qt写的

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); QObject::connect(ui->pushButton,SIGNAL(clicked()),this,SLOT(calc_canidtopgn())); QObject::connect(ui->pushButton_2,SIGNAL(clicked()),this,SLOT(calc_pgntocanid())); } void MainWindow::calc_canidtopgn() { //long canid = ui->lineEdit->text().toLong(); QString str = ui->lineEdit->text(); std::string stdstr = str.toStdString(); char hexstring[20]; long canid = 0; strcpy(hexstring, stdstr.c_str()); sscanf(hexstring,"%x", &canid); unsigned char PF = (unsigned char)(canid>>16); unsigned char PS = (unsigned char)(canid>>8); unsigned char DP = (unsigned char)(canid>>24)&1; unsigned char src = (unsigned char)(canid>>0); unsigned char prio = (unsigned char)((canid>>26)&0x7); unsigned char dst = 0; unsigned long pgn = 0; if(PF < 240) { dst = PS; pgn = (((unsigned long)DP) << 16) | (((unsigned long)PF) << 8); } else { dst = 0xff; pgn = (((unsigned long)DP) << 16) | (((unsigned long)PF) << 8) | (unsigned long)PS; } ui->lineEdit_2->setText(QString::number(pgn)); } void MainWindow::calc_pgntocanid() { int pgn = ui->lineEdit_2->text().toInt(); unsigned char PF = (unsigned char)(pgn>>8); unsigned long source = 0; unsigned char destination = 0; unsigned char priority =0; unsigned long canid = 0; if(PF < 240) { if((pgn &0xff) !=0) { canid = 0; } canid = (((unsigned long)(priority & 0x7))<<26 | pgn <<8 | ((unsigned long)destination)<<8 | (unsigned long)source); } else { canid = (((unsigned long)(priority & 0x7))<<26 | pgn <<8 | (unsigned long)source); } ui->lineEdit->setText(QString::number(canid)); } MainWindow::~MainWindow() { delete ui; }