/****************************************************************************
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**
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** Copyright (C) 2017 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Tobias König <tobias.koenig@kdab.com>
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtPDF module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL3$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPLv3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or later as published by the Free
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** Software Foundation and appearing in the file LICENSE.GPL included in
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** the packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 2.0 requirements will be
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** met: http://www.gnu.org/licenses/gpl-2.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QPDFVIEW_P_H
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#define QPDFVIEW_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "qpdfview.h"
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#include <QPointer>
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#include <QtWidgets/private/qabstractscrollarea_p.h>
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class QPdfPageRenderer;
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class QPdfViewPrivate : public QAbstractScrollAreaPrivate
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{
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Q_DECLARE_PUBLIC(QPdfView)
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public:
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QPdfViewPrivate();
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void init();
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void documentStatusChanged();
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void currentPageChanged(int currentPage);
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void calculateViewport();
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void setViewport(QRect viewport);
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void updateScrollBars();
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void pageRendered(int pageNumber, QSize imageSize, const QImage &image, quint64 requestId);
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void invalidateDocumentLayout();
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void invalidatePageCache();
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qreal yPositionForPage(int page) const;
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struct DocumentLayout
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{
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QSize documentSize;
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QHash<int, QRect> pageGeometries;
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};
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DocumentLayout calculateDocumentLayout() const;
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void updateDocumentLayout();
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QPointer<QPdfDocument> m_document;
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QPdfPageNavigation* m_pageNavigation;
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QPdfPageRenderer *m_pageRenderer;
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QPdfView::PageMode m_pageMode;
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QPdfView::ZoomMode m_zoomMode;
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qreal m_zoomFactor;
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int m_pageSpacing;
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QMargins m_documentMargins;
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bool m_blockPageScrolling;
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QMetaObject::Connection m_documentStatusChangedConnection;
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QRect m_viewport;
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QHash<int, QImage> m_pageCache;
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QVector<int> m_cachedPagesLRU;
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int m_pageCacheLimit;
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DocumentLayout m_documentLayout;
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qreal m_screenResolution; // pixels per point
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};
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Q_DECLARE_TYPEINFO(QPdfViewPrivate::DocumentLayout, Q_MOVABLE_TYPE);
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#endif // QPDFVIEW_P_H
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