愛華網(wǎng)//networkspeed.h//以下為頭文件內(nèi)容//讀取數(shù)據(jù)原理:讀取ubuntu下/proc內(nèi)的實(shí)時(shí)文件,其實(shí)相當(dāng)與在讀取實(shí)時(shí)內(nèi)存信息
#ifndef NETWORKSPEED_H
#define NETWORKSPEED_H
#include"QTextEdit"
#include"QLabel"
#include"QPushButton"
#include<QString>
#include <QtGui/QWidget>
#include<QtGui/QMainWindow>
class netWorkSpeed : public QWidget
{Q_OBJECT
public:
netWorkSpeed(QWidget *parent = 0);
~netWorkSpeed();
void readcpu();//讀取cpu數(shù)據(jù)
void readmem();//讀取內(nèi)存數(shù)據(jù)
void readnet();//讀取流量,計(jì)算網(wǎng)速
private:
QPushButton *label1; //使用率
QPushButton *labMemTotal;//總內(nèi)存
QPushButton *labFree; //空余內(nèi)存
QPushButton *speedButton;
QPushButton *exitbutton;
QPoint windowPos;
QPoint mousePos;
QPoint dPos;
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void changeEvent(QEvent *e);
private slots:
void readsysteminfo();
void closewin();
void showde();//彈出詳細(xì)信息
void showmem();//彈出內(nèi)存詳細(xì)信息
void showcpu();//彈出cpu詳細(xì)信息
};
#endif // NETWORKSPEED_H
//networkspeed.cpp
//源文件
#include "networkspeed.h"
#include"QFileDialog"
#include"QVBoxLayout"
#include"QPushButton"
#include"QTextStream"
#include"QApplication"
#include"QTimer"
#include"QMouseEvent"
netWorkSpeed::netWorkSpeed(QWidget *parent)
: QWidget(parent)
{ QFile file(":/qss/abc.qss");file.open(QFile::ReadOnly);
QString styleSheet = QLatin1String(file.readAll());
qApp->setStyleSheet(styleSheet);
file.close();
exitbutton = new QPushButton("MaKer: Uubntu愛好者楊");//單擊此按鈕關(guān)閉窗體connect(exitbutton,SIGNAL(clicked()),this,SLOT(closewin()));
exitbutton->setVisible(false);
exitbutton->setMinimumSize(200,20);
exitbutton->setMaximumSize(200,20);
label1 = new QPushButton();
connect(label1,SIGNAL(clicked()),this,SLOT(showmem()));
label1->setVisible(false);
label1->setMaximumSize(200,20);
label1->setMinimumSize(200,20);
labMemTotal = new QPushButton();
labMemTotal->setVisible(false);
labMemTotal->setMaximumSize(200,20);
labMemTotal->setMinimumSize(200,20);
labFree = new QPushButton();
labFree->setVisible(false);
labFree->setMaximumSize(200,20);
labFree->setMinimumSize(200,20);
speedButton= new QPushButton();
speedButton->setMaximumSize(200,20);
speedButton->setMinimumSize(200,20);
connect(speedButton,SIGNAL(clicked()),this,SLOT(showde()));
QTimer *time1 = new QTimer();
connect(time1,SIGNAL(timeout()),this,SLOT(readsysteminfo()));
time1->start(1000);//每隔一秒刷新一次
QVBoxLayout *layout1 = new QVBoxLayout();
layout1->addWidget(exitbutton);
layout1->addWidget(labMemTotal);
layout1->addWidget(labFree);
layout1->addWidget(label1);
layout1->addWidget(speedButton);
this->move(1200,600);
this->setLayout(layout1);
}
void netWorkSpeed::readmem()//讀取內(nèi)存信息
{//QString fileName= QFileDialog::getOpenFileName(this, "Open system File", "", "System File(*.text);;Text(*.plain)");
QString fileName="/proc/meminfo";
QFile file(fileName);
if (!file.open(QFile::ReadOnly | QFile::Text))
{return ;
}
QTextStream stream(&file);
QApplication::setOverrideCursor(Qt::WaitCursor);
QString fileText;
QStringList list1;
do {fileText =stream.readLine();
list1+=fileText;
} while (!fileText.isNull());
QApplication::restoreOverrideCursor();
file.close();
int a=1;
int b =1;
double c =0;
QString str1 = list1.at(0);
str1 = str1.mid(17,8);
a= str1.trimmed().toInt()/1024;//總內(nèi)存
str1 = str1.setNum(a)+" MB";
labMemTotal->setText("MemTotal: "+str1);QString str2 = list1.at(1);
str2 = str2.mid(17,8);
b= str2.trimmed().toInt()/1024;//剩余內(nèi)存
str2 = str2.setNum(b)+" MB";
labFree->setText("MemFree: "+str2);c = (double(a-b)/a)*100;
QString labstr=NULL;
labstr.setNum(c);
label1->setText("MemUsed: "+labstr+" %");}
void netWorkSpeed::readcpu()
{}
bool readok = false;
int aa=1;
int bb=1;
void netWorkSpeed::readnet()
{QString fileName="/proc/net/dev";
QFile file(fileName);
if (!file.open(QFile::ReadOnly | QFile::Text))
{return ;
}
QTextStream stream(&file);
QApplication::setOverrideCursor(Qt::WaitCursor);
QString fileText;
QStringList list1;
do {fileText =stream.readLine();
list1+=fileText;
} while (!fileText.isNull());
QApplication::restoreOverrideCursor();
file.close();
int a=1;
int b =1;
int aaa=0;
int bbb=0;
QString str1 = list1.at(5); //第6行eth0的數(shù)據(jù)
if(readok) //初始化緩沖第一次數(shù)據(jù),后一次減去前一次的流量
{str1 = str1.mid(8,10); //接受流量
a= str1.trimmed().toInt();
aaa=a;
a=(a-aa)/1024; //后一次減去前一次的流量
aa=aaa;
str1 = str1.setNum(a);
}
else
{str1 = str1.mid(8,10);//接受流量
aa= str1.trimmed().toInt();
str1 = str1.setNum(0);
//readok = true;
}
QString str2 = list1.at(5);
if(readok) //初始化緩沖第一次數(shù)據(jù),后一次減去前一次的流量
{str2 = str2.mid(65,10); //接受流量
b= str2.trimmed().toInt();
bbb=b;
b=(b-bb)/1024; //后一次減去前一次的流量
bb=bbb;
str2 = str2.setNum(b);
}
else
{str2 = str2.mid(65,10);//接受流量
bb= str2.trimmed().toInt();
str2 = str2.setNum(0);
readok = true;
}
// str2 = str2.mid(65,10);
// b= str2.trimmed().toInt()/1024;//剩余內(nèi)存
// str2 = str2.setNum(b);
QString speestr = NULL;
speestr+="↓ ";
speestr+=str1;
speestr+=" KB/s | ";
speestr+="↑ ";
speestr+=str2;
speestr+=" KB/s";
speedButton->setText(speestr);
}
void netWorkSpeed::readsysteminfo()
{readmem();
readnet();
readcpu();
}
void netWorkSpeed::mousePressEvent(QMouseEvent *event)
{this->windowPos = this->pos();
this->mousePos = event->globalPos();
this->dPos = mousePos - windowPos;
}
void netWorkSpeed::mouseMoveEvent(QMouseEvent *event)
{this->move(event->globalPos() - this->dPos);
}
void netWorkSpeed::changeEvent(QEvent *e)
{// QWidget::changeEvent(e);
// switch (e->type())
// {// case QEvent::LanguageChange:
// break;
// default:
// break;
// }
}
static int shownum = 1;//決定是否ｓｈｏｗ出詳細(xì)信息
//彈出簡(jiǎn)略信息
void netWorkSpeed::showde()
{if(shownum==-1)
{label1->setVisible(false);
exitbutton->setVisible(false);
labMemTotal->setVisible(false);
labFree->setVisible(false);
shownum=shownum*(-1);
}
else
{label1->setVisible(true);
exitbutton->setVisible(true);
shownum=shownum*(-1);
}
}
//彈出內(nèi)存信息
static int shownum2 = 1;
void netWorkSpeed::showmem()
{if(shownum2==-1)
{labMemTotal->setVisible(false);
labFree->setVisible(false);
shownum2=shownum2*(-1);
}
else
{labMemTotal->setVisible(true);
labFree->setVisible(true);
shownum2=shownum2*(-1);
}
}
//彈出cpu信息
void netWorkSpeed::showcpu()
{}
void netWorkSpeed::closewin()
{this->close();
}
netWorkSpeed::~netWorkSpeed()
{}
//想要有酷炫的效果就要用到樣式表
//樣式表文件
//abc.qss
//樣式表的使用本人在另一篇博文講過(guò),大家可以參考http://blog.sina.com.cn/s/blog_807916e0010159qj.html
//下面是本程序用到的樣式表代碼
*{font-size:13px;
color:white;
font-family:"宋體";
}
CallWidget QLineEdit#telEdt
{font-size:24px;
}
QMainWindow,QDialog{background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #1B2534, stop: 0.4 #010101,
stop: 0.5 #000101, stop: 1.0 #1F2B3C);
}
QWidget{background:#121922;
}
QLabel{background:transparent;
}
DailForm QLineEdit#phoneLineEdt{font-size:36px;
font-weight: bold;
}
QPushButton,QToolButton{background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #5B5F5F, stop: 0.5 #0C2436,
stop: 1.0 #27405A);
border-style: outset;
border-width: 1px;
border-radius: 5px;
border-color: #11223F;
padding: 1px;
}
QPushButton::hover,QToolButton::hover{background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #758385, stop: 0.5 #122C39,
stop: 1.0 #0E7788);
border-color: #11505C;
}
QPushButton::pressed,QToolButton::pressed{background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #969B9C, stop: 0.5 #16354B,
stop: 1.0 #244F76);
border-color: #11505C;
}
QPushButton::disabled,QToolButton::disabled{background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #282B2C, stop: 0.5 #09121A,
stop: 1.0 #111D29);
border-color: #0A1320;
color:#6A6864;
}
//希望對(duì)大家有幫助
//現(xiàn)在只是做了部分功能,簡(jiǎn)略的部分,后面我會(huì)再慢慢完善的,添加多一點(diǎn)實(shí)用的功能
//有興趣的話大家也可以修改這些代碼完善它,有了進(jìn)展當(dāng)然希望大家跟我探討一下
歡迎轉(zhuǎn)載,請(qǐng)注明出處.
