kdelibs/kio/tests/previewtest.cpp

#include <QtGui/QLabel>
#include <QtGui/QLayout>
#include <QtGui/QPushButton>

#include <config-prefix.h>
#include <kapplication.h>
#include <kdebug.h>
#include <klineedit.h>
#include <kcmdlineargs.h>
#include <kio/previewjob.h>

#include "moc_previewtest.cpp"

PreviewTest::PreviewTest()
    :QWidget()
{
    QGridLayout *layout = new QGridLayout(this);
    m_url = new KLineEdit(this);
    m_url->setText(KDEDIR "/share/kdeui/pics/aboutkde.png");
    layout->addWidget(m_url, 0, 0);
    QPushButton *btn = new QPushButton("Generate", this);
    connect(btn, SIGNAL(clicked()), SLOT(slotGenerate()));
    layout->addWidget(btn, 0, 1);
    m_preview = new QLabel(this);
    m_preview->setMinimumSize(400, 300);
    layout->addWidget(m_preview, 1, 0, 1, 2);
}

void PreviewTest::slotGenerate()
{
    KFileItemList items;
    items.append(KFileItem(KFileItem::Unknown, KFileItem::Unknown, KUrl(m_url->text()), true));

    KIO::PreviewJob *job = KIO::filePreview(items, QSize(m_preview->width(), m_preview->height()));
    connect(job, SIGNAL(result(KJob*)), SLOT(slotResult(KJob*)));
    connect(job, SIGNAL(gotPreview(KFileItem,QPixmap)), SLOT(slotPreview(KFileItem,QPixmap)));
    connect(job, SIGNAL(failed(KFileItem)), SLOT(slotFailed()));
}

void PreviewTest::slotResult(KJob*)
{
    kDebug() << "PreviewTest::slotResult(...)";
}

void PreviewTest::slotPreview(const KFileItem&, const QPixmap &pix)
{
    kDebug() << "PreviewTest::slotPreview()";
    m_preview->setPixmap(pix);
}

void PreviewTest::slotFailed()
{
    kDebug() << "PreviewTest::slotFailed()";
    m_preview->setText("failed");
}

int main(int argc, char **argv)
{
    KCmdLineArgs::init(argc,argv, "previewtest", 0, ki18n("previewtest"), 0);
    KApplication app;
    PreviewTest *w = new PreviewTest;
    w->show();
    return app.exec();
}