mirror of
https://github.com/JakubMelka/PDF4QT.git
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62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
// Copyright (C) 2019-2020 Jakub Melka
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//
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// This file is part of Pdf4Qt.
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//
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// Pdf4Qt is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Pdf4Qt is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Pdf4Qt. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFWIDGETUTILS_H
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#define PDFWIDGETUTILS_H
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#include "pdfglobal.h"
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#include <QWidget>
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namespace pdf
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{
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class Pdf4QtLIBSHARED_EXPORT PDFWidgetUtils
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{
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public:
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PDFWidgetUtils() = delete;
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/// Converts size in MM to pixel size
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static int getPixelSize(QPaintDevice* device, pdf::PDFReal sizeMM);
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/// Scale horizontal DPI value
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/// \param device Paint device to obtain logical DPI for scaling
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static int scaleDPI_x(QPaintDevice* device, int unscaledSize);
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/// Scale vertical DPI value
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/// \param device Paint device to obtain logical DPI for scaling
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static int scaleDPI_y(QPaintDevice* device, int unscaledSize);
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/// Scale horizontal DPI value
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/// \param device Paint device to obtain logical DPI for scaling
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static PDFReal scaleDPI_x(QPaintDevice* device, PDFReal unscaledSize);
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/// Scales widget based on DPI
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/// \param widget Widget to be scaled
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/// \param unscaledSize Unscaled size of the widget
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static void scaleWidget(QWidget* widget, QSize unscaledSize);
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/// Scales size based on DPI
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/// \param device Paint device to obtain logical DPI for scaling
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/// \param unscaledSize Unscaled size
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static QSize scaleDPI(QPaintDevice* widget, QSize unscaledSize);
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};
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} // namespace pdf
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#endif // PDFWIDGETUTILS_H
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