PDF4QT/PdfForQtLib/sources/pdfdocumentdrawinterface.h

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2.2 KiB
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// Copyright (C) 2020 Jakub Melka
//
// This file is part of PdfForQt.
//
// PdfForQt is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// PdfForQt 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDFForQt. If not, see <https://www.gnu.org/licenses/>.
#ifndef PDFDOCUMENTDRAWINTERFACE_H
#define PDFDOCUMENTDRAWINTERFACE_H
#include "pdfglobal.h"
class QPainter;
namespace pdf
{
class PDFPrecompiledPage;
class PDFTextLayoutGetter;
class PDFFORQTLIBSHARED_EXPORT IDocumentDrawInterface
{
public:
explicit inline IDocumentDrawInterface() = default;
virtual ~IDocumentDrawInterface() = default;
/// Performs drawing of additional graphics onto the painter using precompiled page,
/// optionally text layout and page point to device point matrix.
/// \param painter Painter
/// \param pageIndex Page index
/// \param compiledPage Compiled page
/// \param layoutGetter Layout getter
/// \param pagePointToDevicePointMatrix Matrix mapping page space to device point space
virtual void drawPage(QPainter* painter,
pdf::PDFInteger pageIndex,
const PDFPrecompiledPage* compiledPage,
PDFTextLayoutGetter& layoutGetter,
const QMatrix& pagePointToDevicePointMatrix) const;
/// Performs drawing of additional graphics after all pages are drawn onto the painter.
/// \param painter Painter
/// \param rect Draw rectangle (usually viewport rectangle of the pdf widget)
virtual void drawPostRendering(QPainter* painter, QRect rect) const;
};
} // namespace pdf
#endif // PDFDOCUMENTDRAWINTERFACE_H