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/*
* Copyright (C) 2009 Holger Hans Peter Freyther
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <QtTest/QtTest>
#include <qwebelement.h>
#include <qwebframe.h>
#include <qwebview.h>
#include <qpainter.h>
/**
* Starts an event loop that runs until the given signal is received.
Optionally the event loop
* can return earlier on a timeout.
*
* \return \p true if the requested signal was received
* \p false on timeout
*/
static bool waitForSignal(QObject* obj, const char* signal, int timeout = 0)
{
QEventLoop loop;
QObject::connect(obj, signal, &loop, SLOT(quit()));
QTimer timer;
QSignalSpy timeoutSpy(&timer, SIGNAL(timeout()));
if (timeout > 0) {
QObject::connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
timer.setSingleShot(true);
timer.start(timeout);
}
loop.exec();
return timeoutSpy.isEmpty();
}
class tst_Painting : public QObject
{
Q_OBJECT
public:
public Q_SLOTS:
void init();
void cleanup();
private Q_SLOTS:
void paint_data();
void paint();
void textAreas();
private:
QWebView* m_view;
QWebPage* m_page;
};
void tst_Painting::init()
{
m_view = new QWebView;
m_page = m_view->page();
QSize viewportSize(1024, 768);
m_view->setFixedSize(viewportSize);
m_page->setViewportSize(viewportSize);
}
void tst_Painting::cleanup()
{
delete m_view;
}
void tst_Painting::paint_data()
{
QTest::addColumn<QUrl>("url");
QTest::newRow("amazon") << QUrl("http://www.amazon.com");
}
void tst_Painting::paint()
{
QFETCH(QUrl, url);
m_view->load(url);
::waitForSignal(m_view, SIGNAL(loadFinished(bool)));
/* force a layout */
QWebFrame* mainFrame = m_page->mainFrame();
mainFrame->toPlainText();
QPixmap pixmap(m_page->viewportSize());
QBENCHMARK {
QPainter painter(&pixmap);
mainFrame->render(&painter, QRect(QPoint(0, 0), m_page->viewportSize()));
painter.end();
}
}
void tst_Painting::textAreas()
{
m_view->load(QUrl("data:text/html;<html><body></body></html>"));
::waitForSignal(m_view, SIGNAL(loadFinished(bool)));
QWebElement bodyElement = m_page->mainFrame()->findFirstElement("body");
int count = 100;
while (count--) {
QString markup("<textarea cols='1' rows='1'></textarea>");
bodyElement.appendInside(markup);
}
/* force a layout */
QWebFrame* mainFrame = m_page->mainFrame();
mainFrame->toPlainText();
QPixmap pixmap(mainFrame->contentsSize());
QBENCHMARK {
QPainter painter(&pixmap);
mainFrame->render(&painter, QRect(QPoint(0, 0), mainFrame->contentsSize()));
painter.end();
}
}
QTEST_MAIN(tst_Painting)
#include "tst_painting.moc"
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