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go-image

go-image

Synopsis

                    GOImage;
enum                GOImageFormat;
                    GOImageFormatInfo;
char *              go_mime_to_image_format             (char const *mime_type);
char *              go_image_format_to_mime             (char const *format);
GOImageFormatInfo const * go_image_get_format_info      (GOImageFormat format);
GOImageFormat       go_image_get_format_from_name       (char const *name);
GSList *            go_image_get_formats_with_pixbuf_saver
                                                        (void);
#define             GO_TYPE_IMAGE
#define             GO_IMAGE                            (o)
#define             GO_IS_IMAGE                         (o)
GType               go_image_get_type                   (void);
cairo_t *           go_image_get_cairo                  (GOImage *image);
cairo_pattern_t *   go_image_create_cairo_pattern       (GOImage *image);
GOImage *           go_image_new_from_pixbuf            (GdkPixbuf *pixbuf);
GdkPixbuf *         go_image_get_pixbuf                 (GOImage *image);
GOImage *           go_image_new_from_file              (const char *filename,
                                                         GError **error);
guint8 *            go_image_get_pixels                 (GOImage *image);
int                 go_image_get_rowstride              (GOImage *image);
void                go_image_fill                       (GOImage *image,
                                                         GOColor color);
char const	*        go_image_get_name                   (GOImage *image);
GdkPixbuf *         go_image_get_thumbnail              (GOImage *image);
void                go_image_load_attrs                 (GOImage *image,
                                                         GsfXMLIn *xin,
                                                         xmlChar const **attrs);
void                go_image_load_data                  (GOImage *image,
                                                         GsfXMLIn *xin);
gboolean            go_image_same_pixbuf                (GOImage *first,
                                                         GOImage *second);
void                go_image_save                       (GOImage *image,
                                                         GsfXMLOut *output);
GtkWidget *         go_image_sel_new                    (GODoc *doc,
                                                         GOCmdContext *cc,
                                                         GOImage **image);
void                go_image_set_name                   (GOImage *image,
                                                         char const *name);

Object Hierarchy

  GObject
   +----GOImage

Properties

  "height"                   guint                 : Read / Write
  "pixbuf"                   GdkPixbuf*            : Read / Write
  "width"                    guint                 : Read / Write

Description

Details

GOImage

typedef struct _GOImage GOImage;


enum GOImageFormat

typedef enum {
	GO_IMAGE_FORMAT_SVG,
	GO_IMAGE_FORMAT_PNG,
	GO_IMAGE_FORMAT_JPG,
	GO_IMAGE_FORMAT_PDF,
	GO_IMAGE_FORMAT_PS,
	GO_IMAGE_FORMAT_EMF,
	GO_IMAGE_FORMAT_WMF,
	GO_IMAGE_FORMAT_EPS,
	GO_IMAGE_FORMAT_UNKNOWN
} GOImageFormat;


GOImageFormatInfo

typedef struct {
	GOImageFormat format;
	char *name;
	char *desc;
	char *ext;
	gboolean has_pixbuf_saver;
	gboolean is_dpi_useful;
	gboolean alpha_support;
} GOImageFormatInfo;


go_mime_to_image_format ()

char *              go_mime_to_image_format             (char const *mime_type);

mime_type :

a mime type string

Returns :

file extension for the given mime type.

go_image_format_to_mime ()

char *              go_image_format_to_mime             (char const *format);

format :

a file extension string

Returns :

corresponding mime type.

go_image_get_format_info ()

GOImageFormatInfo const * go_image_get_format_info      (GOImageFormat format);

Retrieves infromation associated to format.

format :

a GOImageFormat

Returns :

a GOImageFormatInfo struct.

go_image_get_format_from_name ()

GOImageFormat       go_image_get_format_from_name       (char const *name);

name :

a string

Returns :

corresponding GOImageFormat.

go_image_get_formats_with_pixbuf_saver ()

GSList *            go_image_get_formats_with_pixbuf_saver
                                                        (void);

Returns :

a list of GOImageFormat that can be created from a pixbuf.

GO_TYPE_IMAGE

#define GO_TYPE_IMAGE (go_image_get_type ())


GO_IMAGE()

#define GO_IMAGE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GO_TYPE_IMAGE, GOImage))

o :


GO_IS_IMAGE()

#define GO_IS_IMAGE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GO_TYPE_IMAGE))

o :


go_image_get_type ()

GType               go_image_get_type                   (void);

Returns :


go_image_get_cairo ()

cairo_t *           go_image_get_cairo                  (GOImage *image);

image :

Returns :


go_image_create_cairo_pattern ()

cairo_pattern_t *   go_image_create_cairo_pattern       (GOImage *image);

image :

a GOImage.

Returns :

a cairo_pattern usable for cairo_set_source. Note: this function has lifespan issues. The resulting pattern in only valid until (a) a pixbuf is set for the, or (b) a pixbuf is _read_ from the image. In either of these cases, the pattern must have been destroyed beforehand. In particular, if the pattern has been attached to a surface, that surface must either be finished itself, or have had a new pattern attached. See 632439.

go_image_new_from_pixbuf ()

GOImage *           go_image_new_from_pixbuf            (GdkPixbuf *pixbuf);

pixbuf :

Returns :


go_image_get_pixbuf ()

GdkPixbuf *         go_image_get_pixbuf                 (GOImage *image);

image :

Returns :


go_image_new_from_file ()

GOImage *           go_image_new_from_file              (const char *filename,
                                                         GError **error);

filename :

error :

Returns :


go_image_get_pixels ()

guint8 *            go_image_get_pixels                 (GOImage *image);

image :

Returns :


go_image_get_rowstride ()

int                 go_image_get_rowstride              (GOImage *image);

image :

Returns :


go_image_fill ()

void                go_image_fill                       (GOImage *image,
                                                         GOColor color);

image :

color :


go_image_get_name ()

char const	*        go_image_get_name                   (GOImage *image);

image :

Returns :


go_image_get_thumbnail ()

GdkPixbuf *         go_image_get_thumbnail              (GOImage *image);

image :

Returns :


go_image_load_attrs ()

void                go_image_load_attrs                 (GOImage *image,
                                                         GsfXMLIn *xin,
                                                         xmlChar const **attrs);

image :

xin :

attrs :


go_image_load_data ()

void                go_image_load_data                  (GOImage *image,
                                                         GsfXMLIn *xin);

image :

xin :


go_image_same_pixbuf ()

gboolean            go_image_same_pixbuf                (GOImage *first,
                                                         GOImage *second);

first :

second :

Returns :


go_image_save ()

void                go_image_save                       (GOImage *image,
                                                         GsfXMLOut *output);

image :

output :


go_image_sel_new ()

GtkWidget *         go_image_sel_new                    (GODoc *doc,
                                                         GOCmdContext *cc,
                                                         GOImage **image);

doc :

The GODoc owning the image collection

cc :

image :

GOImage

Returns :

and shows new image selector.

go_image_set_name ()

void                go_image_set_name                   (GOImage *image,
                                                         char const *name);

image :

name :

Property Details

The "height" property

  "height"                   guint                 : Read / Write

Image height in pixels.

Allowed values: <= 65535

Default value: 0


The "pixbuf" property

  "pixbuf"                   GdkPixbuf*            : Read / Write

GdkPixbuf object from which the GOImage is built.


The "width" property

  "width"                    guint                 : Read / Write

Image width in pixels.

Allowed values: <= 65535

Default value: 0

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