KItinerary::PdfImage
#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 |
int | width () const |
Detailed Description
An image in a PDF document.
Definition at line 72 of file pdfimage.h.
Member Typedef Documentation
◆ LoadingHints
typedef QFlags< LoadingHint > KItinerary::PdfImage::LoadingHints |
Definition at line 104 of file pdfimage.h.
Member Enumeration Documentation
◆ 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 99 of file pdfimage.h.
Property Documentation
◆ height
|
read |
Definition at line 76 of file pdfimage.h.
◆ width
|
read |
Definition at line 75 of file pdfimage.h.
Constructor & Destructor Documentation
◆ PdfImage()
PdfImage::PdfImage | ( | ) |
Definition at line 192 of file pdfimage.cpp.
Member Function Documentation
◆ applyAspectRatioTransform()
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 273 of file pdfimage.cpp.
◆ hasAspectRatioTransform()
bool PdfImage::hasAspectRatioTransform | ( | ) | const |
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 268 of file pdfimage.cpp.
◆ hasObjectId()
bool PdfImage::hasObjectId | ( | ) | const |
Returns whether this image has an object id.
Vector graphic "images" don't have that.
Definition at line 248 of file pdfimage.cpp.
◆ height()
int PdfImage::height | ( | ) | const |
Height of the image in PDF 1/72 dpi coordinates.
Definition at line 201 of file pdfimage.cpp.
◆ image()
QImage PdfImage::image | ( | ) | const |
The source image without display transformations applied.
Definition at line 237 of file pdfimage.cpp.
◆ isVectorImage()
bool PdfImage::isVectorImage | ( | ) | const |
Returns whether this is a raster or vector image.
Definition at line 258 of file pdfimage.cpp.
◆ objectId()
PdfImageRef PdfImage::objectId | ( | ) | const |
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 253 of file pdfimage.cpp.
◆ pathElementsCount()
int PdfImage::pathElementsCount | ( | ) | const |
If this is a vector image, this returns the number of vector path elemets.
Definition at line 263 of file pdfimage.cpp.
◆ setLoadingHints()
void PdfImage::setLoadingHints | ( | LoadingHints | hints | ) |
Sets image loading hints.
Definition at line 232 of file pdfimage.cpp.
◆ sourceHeight()
int PdfImage::sourceHeight | ( | ) | const |
Height of the source image.
Definition at line 217 of file pdfimage.cpp.
◆ sourceWidth()
int PdfImage::sourceWidth | ( | ) | const |
Width of the source image.
Definition at line 222 of file pdfimage.cpp.
◆ transform()
QTransform PdfImage::transform | ( | ) | const |
Transformation from source image to final size/position on the page.
Values are 1/72 inch.
Definition at line 227 of file pdfimage.cpp.
◆ width()
int PdfImage::width | ( | ) | const |
Width of the image in PDF 1/72 dpi coordinates.
Definition at line 209 of file pdfimage.cpp.
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