QT之GPS

http://blog.sina.com.cn/s/blog_7da13b510100xtgr.html

 

前几天发现手里还闲着一块GPS 佳明的15W  也不知道是好的还是坏的呵呵一时兴起我就趁周六日没什么事情

用qt做了一个界面 现在已经调试完毕 可以再2440的arm板子上正确运行  环境fedora9+qt4.5.3+arm-linux-gcc4.3.3

界面如下

                             

                                              

                                           定位正常
                                      

                                                未定位

 

主要代码实现如下：

GPS.h文件

#ifndef KTEST01_H  

#define KTEST01_H  

#include <QWidget>   

#include "ui_Gps.h"   

#include<QDebug>   

#include <stdio.h>   

#include <unistd.h>   

#include <stdlib.h>   

#include <sys/types.h>   

#include <sys/stat.h>   

#include <sys/ioctl.h>   

#include <fcntl.h>   

#include <linux/fs.h>   

#include <errno.h>   

#include <string.h>   

#include <termios.h>   

#include <pthread.h>   

class Gps: public QWidget, private Ui::Form   

{   

 Q_OBJECT   

public:   

 Gps(QWidget* parent = 0, Qt::WFlags fl = 0 );   

 ~Gps();   

 int i;   

 int j;   

 bool openflag;   

 int file_fd;   

 int GpsYes;   

public slots:   

protected:   

protected slots:   

 void paintEvent(QPaintEvent *event);   

 void updategps(void);   

 void updatepaint(void );   

};   

class GPRMC   

{   

public:   

 char UTCtime[7];   

 char effect[2];   

 char weidu[10];   

 char NorS[21];   

 char jingdu[11];   

 char EorW[2];   

 char speed[6];   

 char direct[6];   

 char UTCcal[7];   

 char cipianjiao[6];   

 char pjfx[2];   

 char mod[2];   

};   

#endif   

 

*******************************GPS.cpp文件***********************************************

#include "Gps.h"   

#include <QtGui/QPainter>   

Gps::Gps(QWidget* parent, Qt::WFlags fl)   

: QWidget( parent, fl ), Ui::Form()   

{ i=50;   

 j=0;   

 setupUi(this);   

 GpsYes=0;   

 gpslabel->setText(QApplication::translate("Form", "\346\234\252\345\256\232\344\275\215", 0, QApplication::UnicodeUTF8));   

 qDebug()<<QObject::tr("open button pressed");   

 file_fd=open("/dev/ttySAC1",O_RDWR|O_NONBLOCK|O_NOCTTY); //打开串口1   

 if(file_fd>=0)   

 {   

 openflag=1;   

 qDebug()<<QObject::tr("open succeed");   

 struct termios Srpt;   

 tcgetattr(file_fd,&Srpt);   

 cfsetispeed(&Srpt,B4800);   

 cfsetospeed(&Srpt,B4800);   

 Srpt.c_cflag &= ~PARENB;   

 Srpt.c_cflag &= ~CSTOPB;   

 Srpt.c_cflag |= CS8;   

 Srpt.c_lflag &= ~(ICANON |ISIG);   

 tcsetattr(file_fd,TCSANOW,&Srpt);   

 }   

 else   

 {   

 openflag=0;   

 qDebug()<<QObject::tr("open failed");   

 }    

 this->setAttribute(Qt::WA_PaintOutsidePaintEvent);   

}   

void Gps::paintEvent(QPaintEvent *event)   

{   

 QPainter painter(this);   

 i=(i+9)%360;   

 QConicalGradient gradient(260, 51,i);   

 gradient.setSpread(QGradient::ReflectSpread);   

 if(GpsYes)   

 {   

 gradient.setColorAt(0.0, Qt::white);   

 gradient.setColorAt(0.1, Qt::darkGray);   

 gradient.setColorAt(0.2, Qt::gray);   

 gradient.setColorAt(0.3, Qt::lightGray);   

 gradient.setColorAt(0.4, Qt::red);   

 gradient.setColorAt(0.5, Qt::green);   

 gradient.setColorAt(0.6, Qt::blue);   

 gradient.setColorAt(0.7, Qt::yellow);   

 gradient.setColorAt(0.8, Qt::magenta);   

 gradient.setColorAt(0.9, Qt::yellow);   

 gradient.setColorAt(1, Qt::green);   

 }   

 else   

 {   

 gradient.setColorAt(0.0, Qt::white);   

 gradient.setColorAt(1, Qt::black);   

 }   

 painter.setRenderHint(QPainter::Antialiasing, true);   

 painter.setPen(QPen(Qt::black, 1, Qt::SolidLine, Qt::RoundCap,   

 Qt::MiterJoin));   

 painter.setBrush(gradient);   

 painter.drawEllipse(210, 1, 100, 100);   

 QPainter painter1(this);   

 painter1.setRenderHint(QPainter::Antialiasing, true);   

 painter1.setPen(QPen(Qt::black, 1, Qt::SolidLine, Qt::RoundCap,   

 Qt::MiterJoin));   

 if(GpsYes)   

 {   

 painter1.setBrush(QBrush(Qt::red, Qt::SolidPattern));   

 gpslabel->setText(QApplication::translate("Form", "\345\256\232\344\275\215\344\270\255", 0, QApplication::UnicodeUTF8));   

 }   

 else   

 {   

 painter1.setBrush(QBrush(Qt::black, Qt::SolidPattern));   

 gpslabel->setText(QApplication::translate("Form", "\346\234\252\345\256\232\344\275\215", 0, QApplication::UnicodeUTF8));   

 }   

 painter1.drawEllipse(190, 30, 10, 10);   

}   

Gps::~Gps()   

{   

}   

void Gps::updategps(void)   

{   

 qDebug()<<QObject::tr("enter timer");   

 char buff[2048]="0";   

 char Rmcbuff[80];   

 int counttemp;   

 GPRMC RPM;   

 lseek(file_fd,0,SEEK_SET);   

 int count=0;   

 count=read(file_fd,buff,2048); //从串口中读取数据   

 count=512;   

 int rcvflag=0;   

 if(count>0)   

 {   

 char *starp;   

 for(starp=buff;starp<buff+count;starp++) //解析出RMC包   

 {   

 if((*starp)=='$')   

 {   

 starp++;   

 if((*starp)=='G')   

 {   

 starp++;   

 if((*starp)=='P')   

 {   

 starp++;   

 if((*starp)=='R')   

 {   

 starp++;   

 if((*starp)=='M')   

 {   

 starp++;   

 if((*starp)=='C')   

 {   

 starp++;   

 starp++;   

 for(counttemp=0;(starp<buff+count)||counttemp>=70;starp++)   

 {   

 Rmcbuff[counttemp++]=*starp;   

 if(((*starp)==0x0d)&&((*(starp-1))==0x0A))   

 {   

 break;   

 qDebug()<<"break1";   

 }   

 if(((*starp)=='\n'))   

 {   

 break;   

 qDebug()<<"break2";   

 }   

 // qDebug()<<*starp;   

 }   

 if(counttemp>=63)   

 {   

 rcvflag=1;   

 }   

 else   

 {   

 rcvflag=0;   

 }   

 qDebug()<<Rmcbuff<<"counttemp"<<counttemp;   

 break;   

 }   

 }   

 }   

 }   

 }   

 }   

 }   

 }   

 if(rcvflag)   

 {   

 for(counttemp=0;counttemp<=5;counttemp++) //根据包的内容填充结构体   

 {   

 RPM.UTCtime[counttemp]=Rmcbuff[counttemp];   

 }   

 RPM.UTCtime[counttemp]='\0';   

 RPM.effect[0]=Rmcbuff[7];   

 RPM.effect[1]='\0';   

 for(counttemp=9;counttemp<=17;counttemp++)   

 {   

 RPM.weidu[counttemp-9]=Rmcbuff[counttemp];   

 }   

 RPM.weidu[counttemp-9]='\0';   

 RPM.NorS[0]=Rmcbuff[19];   

 RPM.NorS[1]='\0';   

 for(counttemp=21;counttemp<=30;counttemp++)   

 {   

 RPM.jingdu[counttemp-21]=Rmcbuff[counttemp];   

 }   

 RPM.jingdu[counttemp-21]='\0';   

 RPM.EorW[0]=Rmcbuff[32];   

 RPM.EorW[1]='\0';   

 for(counttemp=34;counttemp<=38;counttemp++)   

 {   

 RPM.speed[counttemp-34]=Rmcbuff[counttemp];   

 }   

 RPM.speed[counttemp-34]='\0';   

 for(counttemp=40;counttemp<=44;counttemp++)   

 {   

 RPM.direct[counttemp-40]=Rmcbuff[counttemp];   

 }   

 RPM.direct[counttemp-40]='\0';   

 for(counttemp=46;counttemp<=51;counttemp++)   

 {   

 RPM.UTCcal[counttemp-46]=Rmcbuff[counttemp];   

 }   

 RPM.UTCcal[counttemp-46]='\0';   

 for(counttemp=53;counttemp<=57;counttemp++)   

 {   

 RPM.cipianjiao[counttemp-53]=Rmcbuff[counttemp];   

 }   

 RPM.cipianjiao[counttemp-53]='\0';   

 RPM.pjfx[0]=Rmcbuff[59];   

 RPM.pjfx[1]='\0';   

 RPM.mod[0]=Rmcbuff[61];   

 RPM.mod[1]='\0';   

 }   

 if(RPM.EorW[0]=='E') //设定显示   

 {   

 jingdu->setText(QApplication::translate("Form", "\344\270\234\347\273\217", 0, QApplication::UnicodeUTF8));   

 }   

 else   

 {   

 jingdu->setText(QApplication::translate("Form", "\350\245\277\347\273\217", 0, QApplication::UnicodeUTF8));   

 }   

 if(RPM.NorS[0]=='S')   

 {   

 weidu->setText(QApplication::translate("Form", "\345\215\227\345\215\212\347\220\203", 0, QApplication::UnicodeUTF8));   

 }   

 else   

 {   

 weidu->setText(QApplication::translate("Form", "\345\214\227\345\215\212\347\220\203", 0, QApplication::UnicodeUTF8));   

 }   

 weiduline->clear();   

 jingduline->clear();   

 gaoduline->clear();   

 speedline->clear();   

 directline->clear();   

 weiduline->insert(RPM.weidu);   

 jingduline->insert(RPM.jingdu);   

 gaoduline->insert("can't receive");   

 speedline->insert(RPM.speed);   

 directline->insert(RPM.direct);   

 if(RPM.effect[0]=='A')   

 {   

 GpsYes=1;   

 }   

 else   

 {   

 GpsYes=0;   

 }   

 dateTime->setTime(QTime((int)((RPM.UTCtime[0]-'0')*10+RPM.UTCtime[1]-'0'),   

 (int)((RPM.UTCtime[2]-'0')*10+RPM.UTCtime[3]-'0'),   

 (int)((RPM.UTCtime[4]-'0')*10+RPM.UTCtime[5]-'0'),0));   

 dateTime->setDate(QDate((RPM.UTCcal[4]-'0')*10+RPM.UTCcal[5]-'0'+2000,   

 (RPM.UTCcal[2]-'0')*10+RPM.UTCcal[3]-'0',   

 (RPM.UTCcal[0]-'0')*10+RPM.UTCcal[1]-'0'));   

}   

void Gps::updatepaint(void )   

{   

 update();   

}   

 *************************************主程序main.cpp**********************************  

#include <QApplication>   

#include "Gps.h"   

#include<QtGui>   

#include <QTimer>   

int main(int argc, char *argv[])   

{   

// Q_INIT_RESOURCE(application);   

 QApplication app(argc, argv);   

 QTextCodec::setCodecForTr(QTextCodec::codecForName("gb18030")); //added by song   

 Gps * mw = new Gps();   

 QTimer *timer = new QTimer(mw);   

 QObject::connect(timer, SIGNAL(timeout()), mw, SLOT(updategps()));   

 QTimer *timer1 = new QTimer(mw);   

 QObject::connect(timer1, SIGNAL(timeout()), mw, SLOT(updatepaint()));   

// QObject::connect(timer, SIGNAL(timeout()), mw, SLOT(update()));   

 timer->start(1000);   

 timer1->start(25);   

 mw->show();   

 return app.exec();   

}   

 呵呵 拿出来和大家交流交流 刚开始学习qt水平有限 希望大家指出不足
   

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