C++ (Cpp) vips_enum_from_nick Exemples

Exemple #1

// just g_object_set_property(), except we allow set enum from string
static void 
set_property( VipsObject *object, const char *name, const GValue *value )
{
	VipsObjectClass *object_class = VIPS_OBJECT_GET_CLASS( object );
	GType type = G_VALUE_TYPE( value );

	GParamSpec *pspec;
	VipsArgumentClass *argument_class;
	VipsArgumentInstance *argument_instance;

	if( vips_object_get_argument( object, name, 
		&pspec, &argument_class, &argument_instance ) ) {
		g_warning( "%s", vips_error_buffer() );
		vips_error_clear();
		return;
	}

	if( G_IS_PARAM_SPEC_ENUM( pspec ) &&
		type == G_TYPE_STRING ) {
		GType pspec_type = G_PARAM_SPEC_VALUE_TYPE( pspec );

		int enum_value;
		GValue value2 = { 0 }; 

		if( (enum_value = vips_enum_from_nick( object_class->nickname, 
			pspec_type, g_value_get_string( value ) )) < 0 ) {
			g_warning( "%s", vips_error_buffer() );
			vips_error_clear();
			return;
		}

		g_value_init( &value2, pspec_type ); 
		g_value_set_enum( &value2, enum_value ); 
		g_object_set_property( G_OBJECT( object ), name, &value2 );
		g_value_unset( &value2 );
	}
	else
		g_object_set_property( G_OBJECT( object ), name, value );
}

Exemple #2

Fichier : im_vips2dz.c Projet : FlavioFalcao/libvips

int
im_vips2dz( IMAGE *in, const char *filename )
{
	char *p, *q;
	char name[FILENAME_MAX];
	char mode[FILENAME_MAX];
	char buf[FILENAME_MAX];

	int i;
	VipsForeignDzLayout layout = VIPS_FOREIGN_DZ_LAYOUT_DZ; 
	char *suffix = ".jpeg";
	int overlap = 0;
	int tile_size = 256;
	VipsForeignDzDepth depth = VIPS_FOREIGN_DZ_DEPTH_1PIXEL; 
	gboolean centre = FALSE;
	VipsAngle angle = VIPS_ANGLE_0; 

	/* We can't use im_filename_split() --- it assumes that we have a
	 * filename with an extension before the ':', and filename here is
	 * actually a dirname.
	 *
	 * Just split on the first ':'.
	 */
	im_strncpy( name, filename, FILENAME_MAX ); 
	if( (p = strchr( name, ':' )) ) {
		*p = '\0';
		im_strncpy( mode, p + 1, FILENAME_MAX ); 
	}

	strcpy( buf, mode ); 
	p = &buf[0];

	if( (q = im_getnextoption( &p )) ) {
		if( (i = vips_enum_from_nick( "im_vips2dz", 
			VIPS_TYPE_FOREIGN_DZ_LAYOUT, q )) < 0 ) 
			return( -1 );
		layout = i;
	}

	if( (q = im_getnextoption( &p )) ) 
		suffix = g_strdup( q );
	if( (q = im_getnextoption( &p )) ) 
		overlap = atoi( q ); 
	if( (q = im_getnextoption( &p )) ) 
		tile_size = atoi( q ); 

	if( (q = im_getnextoption( &p )) ) {
		if( (i = vips_enum_from_nick( "im_vips2dz", 
			VIPS_TYPE_FOREIGN_DZ_DEPTH, q )) < 0 )
			return( -1 );
		depth = i;
	}

	if( (q = im_getnextoption( &p )) ) {
		if( im_isprefix( "cen", q ) ) 
			centre = TRUE;
	}

	if( (q = im_getnextoption( &p )) ) {
		if( (i = vips_enum_from_nick( "im_vips2dz", 
			VIPS_TYPE_ANGLE, q )) < 0 )
			return( -1 );
		angle = i;
	}

	if( vips_dzsave( in, name,
		"layout", layout,
		"suffix", suffix,
		"overlap", overlap,
		"tile_size", tile_size,
		"depth", depth,
		"centre", centre,
		"angle", angle,
		NULL ) )
		return( -1 );

	return( 0 );
}