kde-playground/svgpart/svgpart.cpp

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/*
Copyright 2007 Aurélien Gâteau
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "moc_svgpart.cpp"
// Qt
#include <QGraphicsScene>
#include <QGraphicsSvgItem>
#include <QGraphicsView>
#include <QSvgRenderer>
// KDE
#include <kaboutdata.h>
#include <kactioncollection.h>
#include <kpluginfactory.h>
#include <kstandardaction.h>
// Local
static KAboutData createAboutData()
{
KAboutData aboutData( "svgpart", 0, ki18n("SVG Part"),
"1.0", ki18n("A KPart to display SVG images"),
KAboutData::License_GPL,
ki18n("Copyright 2007, Aurélien Gâteau <aurelien.gateau@free.fr>"));
return aboutData;
}
//Factory Code
K_PLUGIN_FACTORY( SvgPartFactory, registerPlugin< SvgPart >(); )
K_EXPORT_PLUGIN( SvgPartFactory( createAboutData() ) )
SvgPart::SvgPart(QWidget* parentWidget, QObject* parent, const QVariantList&)
: KParts::ReadOnlyPart(parent)
{
mRenderer = new QSvgRenderer(this);
mScene = new QGraphicsScene(this);
mView = new QGraphicsView(mScene, parentWidget);
mView->setFrameStyle(QFrame::NoFrame);
mView->setDragMode(QGraphicsView::ScrollHandDrag);
mItem = 0;
setWidget(mView);
KStandardAction::actualSize(this, SLOT(zoomActualSize()), actionCollection());
KStandardAction::zoomIn(this, SLOT(zoomIn()), actionCollection());
KStandardAction::zoomOut(this, SLOT(zoomOut()), actionCollection());
setXMLFile("svgpart/svgpart.rc");
}
bool SvgPart::openFile() {
if (!mRenderer->load(localFilePath())) {
return false;
}
mItem = new QGraphicsSvgItem();
mItem->setSharedRenderer(mRenderer);
mScene->addItem(mItem);
return true;
}
bool SvgPart::closeUrl() {
delete mItem;
mItem = 0;
return KParts::ReadOnlyPart::closeUrl();
}
void SvgPart::zoomIn() {
setZoom(zoom() * 2);
}
void SvgPart::zoomOut() {
setZoom(zoom() / 2);
}
void SvgPart::zoomActualSize() {
setZoom(1.0);
}
qreal SvgPart::zoom() const {
return mView->matrix().m11();
}
void SvgPart::setZoom(qreal value) {
QMatrix matrix;
matrix.scale(value, value);
mView->setMatrix(matrix);
}