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/*
* Copyright (C) 2009, Shawn Rutledge <shawn.t.rutledge@gmail.com>
* Copyright (C) 2009, Pino Toscano <pino@kde.org>
* Copyright (C) 2020, Albert Astals Cid <aacid@kde.org>
* Copyright (C) 2021, Oliver Sander <oliver.sander@tu-dresden.de>
*
* 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, 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 "thumbnails.h"
#include <poppler-qt6.h>
#include <QtWidgets/QListWidget>
static const int PageRole = Qt::UserRole + 1;
ThumbnailsDock::ThumbnailsDock(QWidget *parent) : AbstractInfoDock(parent)
{
m_list = new QListWidget(this);
setWidget(m_list);
setWindowTitle(tr("Thumbnails"));
m_list->setViewMode(QListView::ListMode);
m_list->setMovement(QListView::Static);
m_list->setVerticalScrollMode(QListView::ScrollPerPixel);
connect(m_list, &QListWidget::itemActivated, this, &ThumbnailsDock::slotItemActivated);
}
ThumbnailsDock::~ThumbnailsDock() { }
void ThumbnailsDock::fillInfo()
{
const int num = document()->numPages();
QSize maxSize;
for (int i = 0; i < num; ++i) {
const std::unique_ptr<Poppler::Page> page = document()->page(i);
const QImage image = page ? page->thumbnail() : QImage();
if (!image.isNull()) {
QListWidgetItem *item = new QListWidgetItem();
item->setText(QString::number(i + 1));
item->setData(Qt::DecorationRole, QPixmap::fromImage(image));
item->setData(PageRole, i);
m_list->addItem(item);
maxSize.setWidth(qMax(maxSize.width(), image.width()));
maxSize.setHeight(qMax(maxSize.height(), image.height()));
}
}
if (num > 0) {
m_list->setGridSize(maxSize);
m_list->setIconSize(maxSize);
}
}
void ThumbnailsDock::documentClosed()
{
m_list->clear();
AbstractInfoDock::documentClosed();
}
void ThumbnailsDock::slotItemActivated(QListWidgetItem *item)
{
if (!item) {
return;
}
setPage(item->data(PageRole).toInt());
}
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