GDK-PixBuf Reference Manual | ||||
---|---|---|---|---|
Top | Description |
#include <gdk-pixbuf/gdk-pixbuf.h> gboolean gdk_pixbuf_set_option (GdkPixbuf *pixbuf
,const gchar *key
,const gchar *value
); GSList * gdk_pixbuf_get_formats (void
); GdkPixbufFormat * gdk_pixbuf_format_copy (const GdkPixbufFormat *format
); void gdk_pixbuf_format_free (GdkPixbufFormat *format
); gchar * gdk_pixbuf_format_get_name (GdkPixbufFormat *format
); gchar * gdk_pixbuf_format_get_description (GdkPixbufFormat *format
); gchar ** gdk_pixbuf_format_get_mime_types (GdkPixbufFormat *format
); gchar ** gdk_pixbuf_format_get_extensions (GdkPixbufFormat *format
); gboolean gdk_pixbuf_format_is_writable (GdkPixbufFormat *format
); gboolean gdk_pixbuf_format_is_scalable (GdkPixbufFormat *format
); gboolean gdk_pixbuf_format_is_disabled (GdkPixbufFormat *format
); void gdk_pixbuf_format_set_disabled (GdkPixbufFormat *format
,gboolean disabled
); gchar * gdk_pixbuf_format_get_license (GdkPixbufFormat *format
); GdkPixbufFormat; enum GdkPixbufFormatFlags; GdkPixbufModulePattern; void (*GdkPixbufModuleFillVtableFunc) (GdkPixbufModule *module
); void (*GdkPixbufModuleFillInfoFunc) (GdkPixbufFormat *info
); void (*GdkPixbufModuleSizeFunc) (gint *width
,gint *height
,gpointer user_data
); void (*GdkPixbufModulePreparedFunc) (GdkPixbuf *pixbuf
,GdkPixbufAnimation *anim
,gpointer user_data
); void (*GdkPixbufModuleUpdatedFunc) (GdkPixbuf *pixbuf
,int x
,int y
,int width
,int height
,gpointer user_data
); GdkPixbufModule; GdkPixbufAnimationClass; GdkPixbufAnimationIterClass;
gboolean gdk_pixbuf_set_option (GdkPixbuf *pixbuf
,const gchar *key
,const gchar *value
);
Attaches a key/value pair as an option to a GdkPixbuf. If key
already
exists in the list of options attached to pixbuf
, the new value is
ignored and FALSE
is returned.
|
a GdkPixbuf |
|
a nul-terminated string. |
|
a nul-terminated string. |
Returns : |
TRUE on success.
|
Since 2.2
GSList * gdk_pixbuf_get_formats (void
);
Obtains the available information about the image formats supported by GdkPixbuf.
Returns : |
A list of GdkPixbufFormats describing the supported image formats. The list should be freed when it is no longer needed, but the structures themselves are owned by GdkPixbuf and should not be freed. [transfer container][element-type GdkPixbufFormat] |
Since 2.2
GdkPixbufFormat * gdk_pixbuf_format_copy (const GdkPixbufFormat *format
);
Creates a copy of format
|
a GdkPixbufFormat |
Returns : |
the newly allocated copy of a GdkPixbufFormat. Use
gdk_pixbuf_format_free() to free the resources when done
|
Since 2.22
void gdk_pixbuf_format_free (GdkPixbufFormat *format
);
Frees the resources allocated when copying a GdkPixbufFormat
using gdk_pixbuf_format_copy()
|
a GdkPixbufFormat |
Since 2.22
gchar * gdk_pixbuf_format_get_name (GdkPixbufFormat *format
);
Returns the name of the format.
|
a GdkPixbufFormat |
Returns : |
the name of the format. |
Since 2.2
gchar * gdk_pixbuf_format_get_description (GdkPixbufFormat *format
);
Returns a description of the format.
|
a GdkPixbufFormat |
Returns : |
a description of the format. |
Since 2.2
gchar ** gdk_pixbuf_format_get_mime_types (GdkPixbufFormat *format
);
Returns the mime types supported by the format.
|
a GdkPixbufFormat |
Returns : |
a NULL -terminated array of mime types which must be freed with
g_strfreev() when it is no longer needed. [transfer full]
|
Since 2.2
gchar ** gdk_pixbuf_format_get_extensions (GdkPixbufFormat *format
);
Returns the filename extensions typically used for files in the given format.
|
a GdkPixbufFormat |
Returns : |
a NULL -terminated array of filename extensions which must be
freed with g_strfreev() when it is no longer needed. [transfer full]
|
Since 2.2
gboolean gdk_pixbuf_format_is_writable (GdkPixbufFormat *format
);
Returns whether pixbufs can be saved in the given format.
|
a GdkPixbufFormat |
Returns : |
whether pixbufs can be saved in the given format. |
Since 2.2
gboolean gdk_pixbuf_format_is_scalable (GdkPixbufFormat *format
);
Returns whether this image format is scalable. If a file is in a scalable format, it is preferable to load it at the desired size, rather than loading it at the default size and scaling the resulting pixbuf to the desired size.
|
a GdkPixbufFormat |
Returns : |
whether this image format is scalable. |
Since 2.6
gboolean gdk_pixbuf_format_is_disabled (GdkPixbufFormat *format
);
Returns whether this image format is disabled. See
gdk_pixbuf_format_set_disabled()
.
|
a GdkPixbufFormat |
Returns : |
whether this image format is disabled. |
Since 2.6
void gdk_pixbuf_format_set_disabled (GdkPixbufFormat *format
,gboolean disabled
);
Disables or enables an image format. If a format is disabled,
gdk-pixbuf won't use the image loader for this format to load
images. Applications can use this to avoid using image loaders
with an inappropriate license, see gdk_pixbuf_format_get_license()
.
|
a GdkPixbufFormat |
|
TRUE to disable the format format
|
Since 2.6
gchar * gdk_pixbuf_format_get_license (GdkPixbufFormat *format
);
Returns information about the license of the image loader for the format. The
returned string should be a shorthand for a wellknown license, e.g. "LGPL",
"GPL", "QPL", "GPL/QPL", or "other" to indicate some other license. This
string should be freed with g_free()
when it's no longer needed.
|
a GdkPixbufFormat |
Returns : |
a string describing the license of format .
|
Since 2.6
typedef struct { gchar *name; GdkPixbufModulePattern *signature; gchar *domain; gchar *description; gchar **mime_types; gchar **extensions; guint32 flags; gboolean disabled; gchar *license; } GdkPixbufFormat;
typedef enum /*< skip >*/ { GDK_PIXBUF_FORMAT_WRITABLE = 1 << 0, GDK_PIXBUF_FORMAT_SCALABLE = 1 << 1, GDK_PIXBUF_FORMAT_THREADSAFE = 1 << 2 } GdkPixbufFormatFlags;
typedef struct { char *prefix; char *mask; int relevance; } GdkPixbufModulePattern;
void (*GdkPixbufModuleFillVtableFunc) (GdkPixbufModule *module
);
|
void (*GdkPixbufModuleSizeFunc) (gint *width
,gint *height
,gpointer user_data
);
|
|
|
|
|
void (*GdkPixbufModulePreparedFunc) (GdkPixbuf *pixbuf
,GdkPixbufAnimation *anim
,gpointer user_data
);
|
|
|
|
|
void (*GdkPixbufModuleUpdatedFunc) (GdkPixbuf *pixbuf
,int x
,int y
,int width
,int height
,gpointer user_data
);
|
|
|
|
|
|
|
|
|
|
|
typedef struct { char *module_name; char *module_path; GModule *module; GdkPixbufFormat *info; GdkPixbuf *(* load) (FILE *f, GError **error); GdkPixbuf *(* load_xpm_data) (const char **data); /* Incremental loading */ gpointer (* begin_load) (GdkPixbufModuleSizeFunc size_func, GdkPixbufModulePreparedFunc prepare_func, GdkPixbufModuleUpdatedFunc update_func, gpointer user_data, GError **error); gboolean (* stop_load) (gpointer context, GError **error); gboolean (* load_increment) (gpointer context, const guchar *buf, guint size, GError **error); /* Animation loading */ GdkPixbufAnimation *(* load_animation) (FILE *f, GError **error); /* Saving */ gboolean (* save) (FILE *f, GdkPixbuf *pixbuf, gchar **param_keys, gchar **param_values, GError **error); gboolean (*save_to_callback) (GdkPixbufSaveFunc save_func, gpointer user_data, GdkPixbuf *pixbuf, gchar **option_keys, gchar **option_values, GError **error); } GdkPixbufModule;
typedef struct { GObjectClass parent_class; gboolean (*is_static_image) (GdkPixbufAnimation *anim); GdkPixbuf* (*get_static_image) (GdkPixbufAnimation *anim); void (*get_size) (GdkPixbufAnimation *anim, int *width, int *height); GdkPixbufAnimationIter* (*get_iter) (GdkPixbufAnimation *anim, const GTimeVal *start_time); } GdkPixbufAnimationClass;
typedef struct { GObjectClass parent_class; int (*get_delay_time) (GdkPixbufAnimationIter *iter); GdkPixbuf* (*get_pixbuf) (GdkPixbufAnimationIter *iter); gboolean (*on_currently_loading_frame) (GdkPixbufAnimationIter *iter); gboolean (*advance) (GdkPixbufAnimationIter *iter, const GTimeVal *current_time); } GdkPixbufAnimationIterClass;