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/*
* Copyright (C) 2013 Canonical, Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*
* Authors: Anthony Granger <grangeranthony@gmail.com>
* Stefano Verzegnassi <stefano92.100@gmail.com>
*/
#include <pdfModel.h>
#include <pdfPage.h>
#include <pageImageProvider.h>
#include <pagesWorkerThread.h>
#include <poppler/qt5/poppler-qt5.h>
#include <QDebug>
#include <QQmlEngine>
#include <QQmlContext>
PdfModel::PdfModel(QAbstractListModel *parent):
QAbstractListModel(parent)
{
int metatype_id = qRegisterMetaType<PdfPagesList>("PdfPagesList");
}
QHash<int, QByteArray> PdfModel::roleNames() const
{
QHash<int, QByteArray> roles;
roles[WidthRole] = "width";
roles[HeightRole] = "height";
return roles;
}
int PdfModel::rowCount(const QModelIndex & parent) const
{
return m_pages.count();
}
QVariant PdfModel::data(const QModelIndex & index, int role) const
{
if (index.row() < 0 || index.row() > m_pages.count())
return QVariant();
const PdfPage &pdfPage = m_pages.at(index.row());
switch (role) {
case WidthRole:
return pdfPage.width();
case HeightRole:
return pdfPage.height();
default:
return 0;
}
}
void PdfModel::setPath(QString &pathName)
{
if (pathName.isEmpty())
{
return;
}
this->path = pathName;
emit pathChanged(pathName);
if ( !loadDocument(pathName) ) {
return;
}
loadPages();
loadProvider();
}
int PdfModel::loadDocument(QString &pathName)
{
qDebug() << "Loading document...";
if (pathName.isEmpty()) {
qDebug() << "Can't load the document, path is empty.";
return 0;
}
this->document = Poppler::Document::load(pathName);
if (!document || document->isLocked()) {
qDebug() << "ERROR : Can't open the document located at " + pathName;
emit error("Can't open the document located at " + pathName);
delete document;
return 0;
}
qDebug() << "Document loaded successfully !";
document->setRenderHint(Poppler::Document::Antialiasing, true);
document->setRenderHint(Poppler::Document::TextAntialiasing, true);
return 1;
}
QDateTime PdfModel::getDocumentDate(QString data)
{
if (!document) {
return QDateTime();
}
if (data == "CreationDate" || data == "ModDate") {
return document->date(data);
} else {
return QDateTime();
}
}
QString PdfModel::getDocumentInfo(QString data)
{
if (!document) {
return QString("");
}
if (data == "Title" || data == "Subject" || data == "Author" || data == "Creator" || data == "Producer") {
return document->info(data);
} else {
return QString("");
}
}
int PdfModel::loadPages()
{
qDebug() << "Populating model...";
m_pages.clear();
if (!document) {
return 0;
}
PDFPagesWorkerThread *workerThread = new PDFPagesWorkerThread();
workerThread->setDocument(this->document);
connect(workerThread, SIGNAL(resultReady(PdfPagesList)), this, SLOT(populate(PdfPagesList)));
connect(workerThread, SIGNAL(finished()), workerThread, SLOT(deleteLater()));
workerThread->start();
return 1;
}
void PdfModel::populate(PdfPagesList pagesList)
{
qDebug() << "Number of pages:" << pagesList.length();
foreach (Poppler::Page *page, pagesList) {
beginInsertRows(QModelIndex(), rowCount(), rowCount());
m_pages << page;
endInsertRows();
}
qDebug() << "Model has been successfully populated!";
emit pagesLoaded();
}
int PdfModel::loadProvider()
{
qDebug() << "Loading image provider...";
QQmlEngine *engine = QQmlEngine::contextForObject(this)->engine();
engine->addImageProvider(QLatin1String("poppler"), new PageImageProvider(document));
qDebug() << "Image provider loaded successfully !";
return 1;
}
PdfModel::~PdfModel()
{
}
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