KItinerary::PdfImage Class Reference

#include <pdfimage.h>

Public Types
enum	LoadingHint { NoHint = 0 , AbortOnColorHint = 1 , ConvertToGrayscaleHint = 2 }
typedef QFlags< LoadingHint >	LoadingHints

Properties
int	height
int	width

Public Member Functions
	PdfImage (const PdfImage &)
QImage	applyAspectRatioTransform (const QImage &image) const
bool	hasAspectRatioTransform () const
bool	hasObjectId () const
int	height () const
QImage	image () const
bool	isVectorImage () const
PdfImageRef	objectId () const
PdfImage &	operator= (const PdfImage &)
int	pathElementsCount () const
void	setLoadingHints (LoadingHints hints)
int	sourceHeight () const
int	sourceWidth () const
QTransform	transform () const
PdfImageType	type () const
int	width () const

Detailed Description

An image in a PDF document.

Definition at line 73 of file pdfimage.h.

Member Typedef Documentation

LoadingHints

typedef QFlags< LoadingHint > KItinerary::PdfImage::LoadingHints

Definition at line 105 of file pdfimage.h.

Member Enumeration Documentation

LoadingHint

enum KItinerary::PdfImage::LoadingHint

Hints for loading image data.

Enumerator
NoHint	Load image data as-is. The default.
AbortOnColorHint	Abort loading when encountering a non black/white pixel, as a shortcut for barcode detection.
ConvertToGrayscaleHint	Convert to QImage::Format_Grayscale8 during loading. More efficient than converting later if all you need is grayscale.

Definition at line 100 of file pdfimage.h.

Property Documentation

height

int KItinerary::PdfImage::height

read

Definition at line 77 of file pdfimage.h.

width

int KItinerary::PdfImage::width

read

Definition at line 76 of file pdfimage.h.

Constructor & Destructor Documentation

PdfImage()

PdfImage::PdfImage

(

)

Definition at line 138 of file pdfimage.cpp.

Member Function Documentation

applyAspectRatioTransform()

QImage PdfImage::applyAspectRatioTransform ( const QImage & image ) const

nodiscard

Applies the aspect ratio changing part of the transform to the given image (which typically should be the one returned by image()).

Definition at line 219 of file pdfimage.cpp.

hasAspectRatioTransform()

bool PdfImage::hasAspectRatioTransform ( ) const

nodiscard

Returns true if this image has an aspect-ratio changing transform.

That might need to be applied before doing barcode decoding for example.

Definition at line 214 of file pdfimage.cpp.

hasObjectId()

bool PdfImage::hasObjectId ( ) const

nodiscard

Returns whether this image has an object id.

Vector graphic "images" don't have that.

Definition at line 194 of file pdfimage.cpp.

height()

int PdfImage::height ( ) const

nodiscard

Height of the image in PDF 1/72 dpi coordinates.

Definition at line 147 of file pdfimage.cpp.

image()

QImage PdfImage::image ( ) const

nodiscard

The source image without display transformations applied.

Definition at line 183 of file pdfimage.cpp.

isVectorImage()

bool PdfImage::isVectorImage ( ) const

nodiscard

Returns whether this is a raster or vector image.

Definition at line 204 of file pdfimage.cpp.

objectId()

PdfImageRef PdfImage::objectId ( ) const

nodiscard

PDF-internal unique identifier of this image.

Use this to detect multiple occurrences of the same image in different places, if that reduces e.g. computation cost.

Definition at line 199 of file pdfimage.cpp.

pathElementsCount()

int PdfImage::pathElementsCount ( ) const

nodiscard

If this is a vector image, this returns the number of vector path elemets.

Definition at line 209 of file pdfimage.cpp.

setLoadingHints()

void PdfImage::setLoadingHints

(

LoadingHints

hints

)

Sets image loading hints.

Definition at line 178 of file pdfimage.cpp.

sourceHeight()

int PdfImage::sourceHeight ( ) const

nodiscard

Height of the source image.

Definition at line 163 of file pdfimage.cpp.

sourceWidth()

int PdfImage::sourceWidth ( ) const

nodiscard

Width of the source image.

Definition at line 168 of file pdfimage.cpp.

transform()

QTransform PdfImage::transform ( ) const

nodiscard

Transformation from source image to final size/position on the page.

Values are 1/72 inch.

Definition at line 173 of file pdfimage.cpp.

type()

PdfImageType PdfImage::type ( ) const

nodiscard

PDF image type.

Definition at line 224 of file pdfimage.cpp.

width()

int PdfImage::width ( ) const

nodiscard

Width of the image in PDF 1/72 dpi coordinates.

Definition at line 155 of file pdfimage.cpp.

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The documentation for this class was generated from the following files:

• pdfimage.h
• pdfimage.cpp