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Jakub Melka
2019-05-07 18:21:22 +02:00
parent 0447b9e3a1
commit 3358d49240
29 changed files with 4648 additions and 4 deletions
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55
PdfForQtLib/sources/pdfcolorspaces.h
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@ -1,4 +1,4 @@
// Copyright (C) 2019 Jakub Melka
// Copyright (C) 2019 Jakub Melka
//
// This file is part of PdfForQt.
//
@ -22,6 +22,7 @@
#include "pdffunction.h"
#include <QColor>
#include <QImage>
#include <QSharedPointer>
namespace pdf
@ -70,6 +71,57 @@ static constexpr const char* ICCBASED_ALTERNATE = "Alternate";
static constexpr const char* ICCBASED_N = "N";
static constexpr const char* ICCBASED_RANGE = "Range";
/// Image raw data - containing data for image. Image data are row-ordered, and by components.
/// So the row can be for 3-components RGB like 'RGBRGBRGB...RGB', where size of row in bytes is 3 * width of image.
class PDFImageData
{
public:
explicit PDFImageData() :
m_components(0),
m_bitsPerComponent(0),
m_width(0),
m_height(0),
m_stride(0)
{
}
explicit inline PDFImageData(unsigned int components,
unsigned int bitsPerComponent,
unsigned int width,
unsigned int height,
unsigned int stride,
QByteArray data) :
m_components(components),
m_bitsPerComponent(bitsPerComponent),
m_width(width),
m_height(height),
m_stride(stride),
m_data(qMove(data))
{
}
unsigned int getComponents() const { return m_components; }
unsigned int getBitsPerComponent() const { return m_bitsPerComponent; }
unsigned int getWidth() const { return m_width; }
unsigned int getHeight() const { return m_height; }
unsigned int getStride() const { return m_stride; }
bool isValid() const { return m_width && m_height && m_components && m_bitsPerComponent; }
const unsigned char* getRow(unsigned int rowIndex) const;
private:
unsigned int m_components;
unsigned int m_bitsPerComponent;
unsigned int m_width;
unsigned int m_height;
unsigned int m_stride;
QByteArray m_data;
};
using PDFColor3 = std::array<PDFColorComponent, 3>;
/// Matrix for color component multiplication (for example, conversion between some color spaces)
@ -117,6 +169,7 @@ public:
virtual QColor getDefaultColor() const = 0;
virtual QColor getColor(const PDFColor& color) const = 0;
virtual size_t getColorComponentCount() const = 0;
virtual QImage getImage(const PDFImageData& imageData) const;
/// Parses the desired color space. If desired color space is not found, then exception is thrown.
/// If everything is OK, then shared pointer to the new color space is returned.