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Diffstat (limited to 'kioslave/thumbnail/htmlcreator.cpp')
-rw-r--r-- | kioslave/thumbnail/htmlcreator.cpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/kioslave/thumbnail/htmlcreator.cpp b/kioslave/thumbnail/htmlcreator.cpp new file mode 100644 index 000000000..0431bcf6e --- /dev/null +++ b/kioslave/thumbnail/htmlcreator.cpp @@ -0,0 +1,118 @@ +/* This file is part of the KDE libraries + Copyright (C) 2000 Malte Starostik <malte@kde.org> + Copyright (C) 2006 Roberto Cappuccio <roberto.cappuccio@gmail.com> + + 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 <time.h> +#include <qpixmap.h> +#include <qimage.h> +#include <qpainter.h> +#include <kapplication.h> +#include <khtml_part.h> + +#include "htmlcreator.h" + +extern "C" +{ + KDE_EXPORT ThumbCreator *new_creator() + { + return new HTMLCreator; + } +} + +HTMLCreator::HTMLCreator() + : m_html(0) +{ +} + +HTMLCreator::~HTMLCreator() +{ + delete m_html; +} + +bool HTMLCreator::create(const QString &path, int width, int height, QImage &img) +{ + if (!m_html) + { + m_html = new KHTMLPart; + connect(m_html, SIGNAL(completed()), SLOT(slotCompleted())); + m_html->setJScriptEnabled(false); + m_html->setJavaEnabled(false); + m_html->setPluginsEnabled(false); + m_html->setMetaRefreshEnabled(false); + m_html->setOnlyLocalReferences(true); + } + KURL url; + url.setPath(path); + m_html->openURL(url); + + int t = startTimer(5000); + + qApp->enter_loop(); + + killTimer(t); + + // render the HTML page on a bigger pixmap and use smoothScale, + // looks better than directly scaling with the QPainter (malte) + QPixmap pix; + if (width > 400 || height > 600) + { + if (height * 3 > width * 4) + pix.resize(width, width * 4 / 3); + else + pix.resize(height * 3 / 4, height); + } + else + pix.resize(400, 600); + + // light-grey background, in case loadind the page failed + pix.fill( QColor( 245, 245, 245 ) ); + + int borderX = pix.width() / width, borderY = pix.height() / height; + QRect rc(borderX, borderY, pix.width() - borderX * 2, + pix.height() - borderY * 2); + + QPainter p; + p.begin(&pix); + m_html->paint(&p, rc); + p.end(); + + img = pix.convertToImage(); + + m_html->closeURL(); + + return true; +} + +void HTMLCreator::timerEvent(QTimerEvent *) +{ + qApp->exit_loop(); +} + +void HTMLCreator::slotCompleted() +{ + qApp->exit_loop(); +} + +ThumbCreator::Flags HTMLCreator::flags() const +{ + return DrawFrame; +} + +#include "htmlcreator.moc" + |