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/* This file is part of the KDE project
Copyright (C) 2010 KO GmbH <jos.van.den.oever@kogmbh.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 "combinedview.h"
#include "dirslideloader.h"
#include "kpresenterslideloader.h"
#include "slideview.h"
#include "oothread.h"
#include <PptToOdp.h>
#include <QGridLayout>
#include <QDragEnterEvent>
#include <QCoreApplication>
#include <kmessagebox.h>
#include <kmimetype.h>
CombinedView::CombinedView(QWidget* parent) :QWidget(parent),
ooodploader(new DirSlideLoader(this)),
koodploader(new KPresenterSlideLoader(this)),
oopptloader(new DirSlideLoader(this)),
kopptloader(new KPresenterSlideLoader(this)),
ooodpview(new SlideView(ooodploader, this)),
koodpview(new SlideView(koodploader, this)),
oopptview(new SlideView(oopptloader, this)),
kopptview(new SlideView(kopptloader, this)),
oothread(new OoThread(this)),
layout(new QGridLayout(this)) {
ooodploader->setSlideNamePattern("img%1.png");
oopptloader->setSlideNamePattern("img%1.png");
addSlideView(ooodpview);
addSlideView(koodpview);
addSlideView(oopptview);
addSlideView(kopptview);
layout->addWidget(ooodpview, 0, 0);
layout->addWidget(koodpview, 0, 1);
layout->addWidget(oopptview, 1, 0);
layout->addWidget(kopptview, 1, 1);
layout->setColumnStretch(0, 1);
layout->setColumnStretch(1, 1);
layout->setRowStretch(0, 1);
layout->setRowStretch(1, 1);
layout->setSpacing(0);
layout->setContentsMargins(0, 0, 0, 0);
setLayout(layout);
connect(oothread, SIGNAL(toOdpDone(QString)),
this, SLOT(slotHandleOoOdp(QString)));
connect(oothread, SIGNAL(toPngDone(QString)),
this, SLOT(slotHandleOoPng(QString)));
setAcceptDrops(true);
}
CombinedView::~CombinedView() {
oothread->stop();
oothread->wait();
}
void CombinedView::slotSetView(qreal zoomFactor, int h, int v) {
for (int i=0; i<slideViews.size(); ++i) {
slideViews[i]->setView(zoomFactor, h, v);
}
}
void CombinedView::addSlideView(SlideView* slideview) {
slideViews.push_back(slideview);
connect(slideview, SIGNAL(viewChanged(qreal,int,int)),
this, SLOT(slotSetView(qreal,int,int)));
}
QString
koppttoodp(const QString& from) {
QDir d(QDir::temp().filePath("slidecompare-" + QDir::home().dirName()));
QString dirpath = d.absolutePath();
d.mkpath(dirpath);
QString to = dirpath + QDir::separator()
+ QFileInfo(from).baseName() + ".odp";
QFile::remove(to);
PptToOdp ppttoodp(0, 0);
ppttoodp.convert(from, to, KoStore::Zip);
return to;
}
void
CombinedView::openFile(const QString& path) {
bool odp = path.endsWith(QLatin1String(".odp"), Qt::CaseInsensitive);
oopptview->setVisible(!odp);
kopptview->setVisible(!odp);
layout->setRowStretch(1, (odp)?0:1);
// update view now for more pleasing user experience, later renderings
// may be slow
qApp->processEvents();
oopptloader->setSlideDir("");
kopptloader->close();
if (!QFileInfo(path).exists()) {
KMessageBox::error(this,
QString("File %1 does not exist.").arg(path));
return;
}
if (!odp) {
nextodpfile = koppttoodp(path);
if (!QFileInfo(nextodpfile).exists()) {
KMessageBox::error(this, QString(
"File %1 cannot be converted by PptToOdp.").arg(path));
return;
}
koodploader->open(nextodpfile);
} else {
nextodpfile.clear();
koodploader->open(path);
}
quint32 nslides = koodploader->numberOfSlides();
if (nslides == 0) {
return;
}
ooodploader->setSlideSize(koodploader->slideSize());
ooodploader->setNumberOfSlides(nslides);
if (!odp) {
// start conversion to odp
ooodpresult = oothread->toOdp(path);
oopptloader->setSlideSize(koodploader->slideSize());
oopptloader->setNumberOfSlides(nslides);
} else {
oopptloader->setNumberOfSlides(0);
}
QString dir = oothread->toPng(path, koodploader->slideSize().width());
ooodploader->setSlideDir(dir);
// if ppt, convert to odp with calligra and put in queue for conversion to
// png
// adapt zoom level to number of slides
qreal zoomlevel = (nslides > 3 || nslides == 0) ?0.25 :1.0/nslides;
ooodpview->setView(zoomlevel, 0, 0);
koodpview->setView(zoomlevel, 0, 0);
oopptview->setView(zoomlevel, 0, 0);
kopptview->setView(zoomlevel, 0, 0);
}
void
CombinedView::slotHandleOoOdp(const QString& path) {
if (path == ooodpresult) {
kopptloader->open(path);
}
}
void
CombinedView::slotHandleOoPng(const QString& /*path*/) {
if (!nextodpfile.isEmpty()) {
QString dir = oothread->toPng(nextodpfile,
koodploader->slideSize().width());
oopptloader->setSlideDir(dir);
nextodpfile.clear();
}
}
void CombinedView::dragEnterEvent(QDragEnterEvent *event)
{
foreach (const QUrl& url, event->mimeData()->urls()) {
const QString path(url.toLocalFile());
if (path.isEmpty()) { // url is not local
event->acceptProposedAction();
} else {
QString mimetype = KMimeType::findByUrl(url)->name();
if (mimetype == "application/vnd.oasis.opendocument.presentation"
|| mimetype == "application/vnd.ms-powerpoint") {
event->acceptProposedAction();
}
}
}
}
void CombinedView::dropEvent(QDropEvent *event)
{
if (event->mimeData()->urls().size()) {
openFile(event->mimeData()->urls().first().toLocalFile());
}
}
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