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#include <QtGui/QApplication>
#include <QtGui/QPainter>
#include <QtCore/QFile>
#include <QtCore/QString>
#include <QtCore/QUrl>
#include <QtWebKit/QWebPage>
#include <QtWebKit/QWebFrame>
#include <QtNetwork/QNetworkProxy>
#include <QtCore/QProcess>
#if QT_VERSION >= 0x040500
#include <QtGui/QDesktopServices>
#include <QtNetwork/QNetworkDiskCache>
#endif
/* using mingw to set binary mode */
#ifdef WIN32
#include <io.h>
#include <fcntl.h>
#define BINARYSTDOUT setmode(fileno(stdout), O_BINARY);
#else
#define BINARYSTDOUT
#endif
class Save : public QObject
{
Q_OBJECT
public:
Save(QWebPage *p) : page(p) {};
public slots:
void loaded(bool ok)
{
if(ok)
{
page->setViewportSize(page->mainFrame()->contentsSize());
QImage im(page->viewportSize(), QImage::Format_ARGB32);
QPainter painter(&im);
page->mainFrame()->render(&painter);
QFile f;
BINARYSTDOUT
if(f.open(stdout, QIODevice::WriteOnly|QIODevice::Unbuffered))
{
if(!im.save(&f, "JPEG"))
{
im.save(&f, "PNG");
}
}
}
emit finish();
}
signals:
void finish(void);
private:
QWebPage * page;
};
#include "webkit-image.h"
int main(int argc, char **argv)
{
if(argc != 2)
return 20;
QString url = QString(argv[1]);
QApplication a(argc, argv);
QWebPage * page = new QWebPage();
Save * s = new Save(page);
QStringList environment = QProcess::systemEnvironment();
int idx = environment.indexOf(QRegExp("http_proxy=.*"));
if(idx != -1)
{
QString scheme = "http"; // default
QString proxyHost;
int proxyPort = 8080;
QStringList tmpList = environment.at(idx).split("=");
#if QT_VERSION >= 0x040600 // Qt4.6: Use QUrl::fromUserInput
// set URL (and guess if proto scheme missing)
QUrl url (QUrl::fromUserInput(tmpList.at(1)));
#else
// set URL
QUrl url (tmpList.at(1));
#endif
if (url.isValid() && !url.host().isEmpty())
{
proxyHost = url.host();
if (url.port() != -1)
proxyPort = url.port();
if (!url.scheme().isEmpty())
scheme = url.scheme();
if (scheme == "http") // we support only http
{
QNetworkProxy proxy;
proxy.setType(QNetworkProxy::HttpCachingProxy);
proxy.setHostName(proxyHost);
proxy.setPort(proxyPort);
if (!url.userName().isEmpty())
proxy.setUser(url.userName());
if (!url.password().isEmpty())
proxy.setPassword(url.password());
page->networkAccessManager()->setProxy(proxy);
}
}
else /* manual mode */
{
QStringList proto_host_port = tmpList.at(1).split("://");
QStringList host_port;
if (proto_host_port.size() == 2) // string has proto
{
scheme = proto_host_port.at(0);
host_port = proto_host_port.at(1).split(":");
}
else // no proto (or invalid format with several delimiters)
{
host_port = tmpList.at(1).split(":");
}
if (scheme == "http") // we support only http
{
proxyHost = host_port.at(0);
if(host_port.size() == 2)
{
bool ok;
int port = host_port.at(1).toInt(&ok);
if(ok)
proxyPort = port;
}
QNetworkProxy proxy;
proxy.setType(QNetworkProxy::HttpCachingProxy);
proxy.setHostName(proxyHost);
proxy.setPort(proxyPort);
page->networkAccessManager()->setProxy(proxy);
}
}
}
#if QT_VERSION >= 0x040500
QNetworkDiskCache *diskCache = new QNetworkDiskCache(page);
QString location = QDesktopServices::storageLocation(QDesktopServices::CacheLocation);
diskCache->setCacheDirectory(location);
page->networkAccessManager()->setCache(diskCache);
#endif
QObject::connect(page, SIGNAL(loadFinished(bool)), s, SLOT(loaded(bool)));
QObject::connect(s, SIGNAL(finish(void)), &a, SLOT(quit()));
/* set some useful defaults for a webpage */
// page->setViewportSize(QSize(1280,1024));
// page->mainFrame()->setScrollBarPolicy(Qt::Horizontal, Qt::ScrollBarAlwaysOff);
// page->mainFrame()->setScrollBarPolicy(Qt::Vertical, Qt::ScrollBarAlwaysOff);
page->mainFrame()->load (QUrl(url));
return a.exec();
}
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