The DilloImage data-structure and methods. More...

#include "bitvec.h"
#include "url.h"

Include dependency graph for image.hh:

This graph shows which files directly or indirectly include this file:

Classes
struct	_DilloImage

Macros
#define	IMAGE_MAX_AREA (6000 * 6000)
	Arbitrary maximum for image size.

Typedefs
typedef struct _DilloImage	DilloImage

Enumerations
enum	DilloImgType { DILLO_IMG_TYPE_INDEXED , DILLO_IMG_TYPE_RGB , DILLO_IMG_TYPE_GRAY , DILLO_IMG_TYPE_CMYK_INV , DILLO_IMG_TYPE_NOTSET }

enum	ImageState { IMG_Empty , IMG_SetParms , IMG_SetCmap , IMG_Write , IMG_Close , IMG_Abort }

Functions
DilloImage *	a_Image_new (void layout, void img_rndr, int32_t bg_color, int32_t fg_color)
	Create and initialize a new image structure.

DilloImage *	a_Image_new_with_dw (void layout, const char alt_text, int32_t bg_color, int32_t fg_color)
	Create and initialize a new image structure with an image widget.

void *	a_Image_get_dw (DilloImage *Image)
	Return the image renderer as a widget.

void	a_Image_ref (DilloImage *Image)
	Add a reference to an Image struct Do nothing if the argument is NULL.

void	a_Image_unref (DilloImage *Image)
	Unref and free if necessary Do nothing if the argument is NULL.

void	a_Image_set_parms (DilloImage Image, void v_imgbuf, DilloUrl *url, int version, uint_t width, uint_t height, DilloImgType type)
	Set initial parameters of the image.

void	a_Image_write (DilloImage *Image, uint_t y)
	Implement the write method.

void	a_Image_close (DilloImage *Image)
	Implement the close method.

void	a_Image_abort (DilloImage *Image)
	Implement the abort method.

Detailed Description

The DilloImage data-structure and methods.

Definition in file image.hh.

Macro Definition Documentation

◆ IMAGE_MAX_AREA

#define IMAGE_MAX_AREA (6000 * 6000)

Arbitrary maximum for image size.

To avoid image size-crafting attacks.

Definition at line 34 of file image.hh.

Typedef Documentation

◆ DilloImage

typedef struct _DilloImage DilloImage

Definition at line 40 of file image.hh.

Enumeration Type Documentation

◆ DilloImgType

enum DilloImgType

Enumerator
DILLO_IMG_TYPE_INDEXED
DILLO_IMG_TYPE_RGB
DILLO_IMG_TYPE_GRAY
DILLO_IMG_TYPE_CMYK_INV
DILLO_IMG_TYPE_NOTSET

Definition at line 42 of file image.hh.

◆ ImageState

enum ImageState

Enumerator
IMG_Empty	Just created the entry.
IMG_SetParms	Parameters set.
IMG_SetCmap	Color map set.
IMG_Write	Feeding the entry.
IMG_Close	Whole image got!
IMG_Abort	Image transfer aborted.

Definition at line 51 of file image.hh.

Function Documentation

◆ a_Image_abort()

void a_Image_abort ( DilloImage * Image )

Implement the abort method.

Definition at line 153 of file image.cc.

References _MSG, and I2IR.

Referenced by a_Dicache_callback().

◆ a_Image_close()

void a_Image_close ( DilloImage * Image )

Implement the close method.

Definition at line 144 of file image.cc.

References _MSG, and I2IR.

Referenced by a_Dicache_callback().

◆ a_Image_get_dw()

void * a_Image_get_dw ( DilloImage * Image )

Return the image renderer as a widget.

This is somewhat tricky, since simple casting leads to wrong (and hard to debug) results, because of multiple inheritance. This function can be used from C code, where only access to void* is possible.

Definition at line 72 of file image.cc.

Referenced by Dicache_image().