Qt写的网页浏览器

Browser.cpp

 

Browser::Browser()   

{   

     pageView = new QWebView(this);   

     pageView->load(QUrl("http://www.baidu.com/"));   

     setCentralWidget(pageView);   

     pageView->page()->setLinkDelegationPolicy(QWebPage::DelegateAllLinks);   

        

     pageLine = new QLineEdit(this);   

     pageLine->setText("http://www.baidu.com/");   

     createActions();   

     createToolBars();   

     createStatusBar();   

   

     connect(pageView, SIGNAL(loadProgress(int)), this, SLOT(refreshLine()));   

     connect(pageLine, SIGNAL(returnPressed()), this, SLOT(loadPage()));   

     connect(pageView, SIGNAL(linkClicked(const QUrl)), SLOT(loadLinkPage(const QUrl)));   

 }   

   

void Browser::createActions()   

{   

    backAct = new QAction(QIcon(":/images/back.png"), tr("&Back"), this);   

    backAct->setShortcut(tr("Ctrl+B"));   

    connect(backAct, SIGNAL(triggered()), this, SLOT(backPage()));   

   

    forwardAct = new QAction(QIcon(":/images/forward.png"), tr("&Forward"), this);   

    forwardAct->setShortcut(tr("Ctrl+F"));   

    connect(forwardAct, SIGNAL(triggered()), this, SLOT(forwardPage()));   

   

    reloadAct = new QAction(QIcon(":/images/reload.png"), tr("&Refresh"), this);   

    reloadAct->setShortcut(tr("Ctrl+R"));   

    connect(reloadAct, SIGNAL(triggered()), this, SLOT(reloadPage()));   

   

   

}   

   

 void Browser::createToolBars()   

 {   

     navigationToolBar = addToolBar(tr("Navigation"));   

     navigationToolBar->addAction(backAct);   

     navigationToolBar->addAction(forwardAct);   

     navigationToolBar->addAction(reloadAct);   

     navigationToolBar->addWidget(pageLine);   

   

 }   

   

 void Browser::createStatusBar()   

 {   

     statusBar()->showMessage(tr("Ready"));   

 }   

   

 void Browser::loadPage()   

 {   

        

     pageView->load(QUrl(pageLine->text()));   

 }   

   

 void Browser::backPage()   

 {   

     pageView->back();   

 }   

   

 void Browser::forwardPage()   

 {   

     pageView->forward();   

 }   

   

 void Browser::reloadPage()   

 {   

     pageView->reload();   

 }   

   

 void Browser::refreshLine()   

 {   

     pageLine->setText(pageView->url().toString());   

 }   

   

 void Browser::loadLinkPage(const QUrl & url)   

 {   

     pageView->load(url);   

 }   

 

 

Browser.h

 

 

 #ifndef BROWSER_H 
 #define BROWSER_H 
 
#include  
#include  
#include  
#include  
 
class Browser : 
             public QMainWindow 
 { 
     Q_OBJECT 
 public: 
     Browser(); 
 
 private slots: 
     void loadLinkPage(const QUrl & url); 
     void loadPage(); 
	 void backPage(); 
	 void forwardPage(); 
	 void reloadPage(); 
	 void refreshLine(); 
	  
 
 private: 
     void createActions(); 
    
     void createToolBars(); 
     void createStatusBar(); 
     
     QToolBar *navigationToolBar; 
	 QAction *backAct; 
	 QAction *forwardAct; 
	 QAction *reloadAct; 
	 QWebView *pageView; 
	 QLineEdit *pageLine; 
      
 }; 
 
 #endif