mirror of https://github.com/JakubMelka/PDF4QT.git
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
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// Copyright (C) 2019 Jakub Melka
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//
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// This file is part of PdfForQt.
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//
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// PdfForQt 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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// PdfForQt 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 PDFForQt. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFCOLORSPACES_H
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#define PDFCOLORSPACES_H
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#include "pdfflatarray.h"
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#include <QColor>
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namespace pdf
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{
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using PDFColorComponent = float;
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using PDFColor = PDFFlatArray<PDFColorComponent, 4>;
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/// Represents PDF's color space
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class PDFAbstractColorSpace
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{
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public:
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explicit PDFAbstractColorSpace() = default;
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virtual ~PDFAbstractColorSpace() = default;
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virtual QColor getColor(const PDFColor& color) const = 0;
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virtual size_t getColorComponentCount() const = 0;
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protected:
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/// Clips the color component to range [0, 1]
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static constexpr PDFColorComponent clip01(PDFColorComponent component) { return qBound<PDFColorComponent>(0.0, component, 1.0); }
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};
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class PDFDeviceGrayColorSpace : public PDFAbstractColorSpace
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{
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public:
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explicit PDFDeviceGrayColorSpace() = default;
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virtual ~PDFDeviceGrayColorSpace() = default;
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virtual QColor getColor(const PDFColor& color) const override;
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virtual size_t getColorComponentCount() const override;
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};
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class PDFDeviceRGBColorSpace : public PDFAbstractColorSpace
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{
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public:
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explicit PDFDeviceRGBColorSpace() = default;
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virtual ~PDFDeviceRGBColorSpace() = default;
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virtual QColor getColor(const PDFColor& color) const override;
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virtual size_t getColorComponentCount() const override;
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};
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class PDFDeviceCMYKColorSpace : public PDFAbstractColorSpace
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{
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public:
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explicit PDFDeviceCMYKColorSpace() = default;
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virtual ~PDFDeviceCMYKColorSpace() = default;
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virtual QColor getColor(const PDFColor& color) const override;
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virtual size_t getColorComponentCount() const override;
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};
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} // namespace pdf
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#endif // PDFCOLORSPACES_H
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