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| lglBarcode * | lgl_barcode_new () | 
| void | lgl_barcode_free () | 
| void | lgl_barcode_add_line () | 
| void | lgl_barcode_add_box () | 
| void | lgl_barcode_add_char () | 
| void | lgl_barcode_add_string () | 
| void | lgl_barcode_add_ring () | 
| void | lgl_barcode_add_hexagon () | 
lglBarcode *
lgl_barcode_new (void);
Allocate a new lglBarcode structure.
This function allocates a new lglBarcode structure.
      This function is intended to be used internally by barcode implementations.
      Typically an end-user would use lgl_barcode_create() instead.
void
lgl_barcode_free (lglBarcode *bc);
Free a previously allocated lglBarcode structure.
void lgl_barcode_add_line (lglBarcode *bc,gdouble x,gdouble y,gdouble length,gdouble width);
Add a vertical line to barcode. Coordinates are relative to top left corner of barcode. All units are in points ( 1 point = 1/72 inch ).
This function is intended to be used internally by barcode implementations.
| bc | An lglBarcode structure | |
| x | x coordinate of top of line | |
| y | y coordinate of top of line | |
| length | Length of line | |
| width | Width of line | 
void lgl_barcode_add_box (lglBarcode *bc,gdouble x,gdouble y,gdouble width,gdouble height);
Add a box to barcode. Coordinates are relative to top left corner of barcode. All units are in points ( 1 point = 1/72 inch ).
This function is intended to be used internally by barcode implementations.
| bc | An lglBarcode structure | |
| x | x coordinate of top left corner of box | |
| y | y coordinate of top left corner of box | |
| width | Width of box | |
| height | Height of box | 
void lgl_barcode_add_char (lglBarcode *bc,gdouble x,gdouble y,gdouble fsize,gchar c);
Add an ASCII character to barcode. Coordinates are relative to top left corner of barcode. All units are in points ( 1 point = 1/72 inch ).
This function is intended to be used internally by barcode implementations.
| bc | An lglBarcode structure | |
| x | x coordinate of left baseline of character | |
| y | y coordinate of left baseline of character | |
| fsize | Font size | |
| c | Character to add | 
void lgl_barcode_add_string (lglBarcode *bc,gdouble x,gdouble y,gdouble fsize,gchar *string,gsize length);
Add a character string to barcode. Coordinates are relative to top left corner of barcode. All units are in points ( 1 point = 1/72 inch ).
This function is intended to be used internally by barcode implementations.
| bc | An lglBarcode structure | |
| x | x coordinate of horizontal center of baseline of string | |
| y | y coordinate of horizontal center of baseline of string | |
| fsize | Font size | |
| string | String to add | |
| length | Number of bytes in string | 
void lgl_barcode_add_ring (lglBarcode *bc,gdouble x,gdouble y,gdouble radius,gdouble line_width);
Add a ring to barcode. Coordinates are relative to top left corner of barcode. All units are in points ( 1 point = 1/72 inch ).
This function is intended to be used internally by barcode implementations.
| bc | An lglBarcode structure | |
| x | x coordinate of center of circle | |
| y | y coordinate of center of circle | |
| radius | Radius of ring (center of line) | |
| line_width | Width of line | 
void lgl_barcode_add_hexagon (lglBarcode *bc,gdouble x,gdouble y,gdouble height);
Add a regular hexagon (oriented with vertexes at top and bottom) to barcode. Coordinates are relative to top left corner of barcode. All units are in points ( 1 point = 1/72 inch ).
This function is intended to be used internally by barcode implementations.
| bc | An lglBarcode structure | |
| x | x coordinate of top point of hexagon | |
| y | y coordinate of top point of hexagon | |
| height | Height of hexagon | 
typedef struct {
        gdouble  width;
        gdouble  height;
        GList   *shapes;    /* List of lglBarcodeShape drawing primitives */
} lglBarcode;
This structure contains the libglbarcode intermediate barcode format. This structure contains a simple vectorized representation of the barcode. This vectorized representation is easy to interpret by a rendering backend for either vector or raster formats. A simple API is provided for constructing barcodes in this format.
| Width of barcode bounding box (points) | ||
| Height of barcode bounding box (points) | ||
| List of lglBarcodeShape drawing primitives | 
typedef struct {
        /* Begin Common Fields */
        lglBarcodeShapeType  type;
        gdouble              x;
        gdouble              y;
        /* End Common Fields */
} lglBarcodeShapeAny;
typedef struct {
        /* Begin Common Fields */
        lglBarcodeShapeType  type; /* Always LGL_BARCODE_SHAPE_LINE. */
        gdouble              x;
        gdouble              y;
        /* End Common Fields */
        gdouble              length;
        gdouble              width;
} lglBarcodeShapeLine;
A vertical line drawing primitive.
@ =  origin (x,y) from top left corner of barcode
             +--@--+
             |     |
             |     |
             |     |
             |     | length
             |     |
             |     |
             |     |
             +-----+
              width
All units are in points ( 1 point = 1/72 inch ).
| lglBarcodeShapeType  | Always  | |
| x coordinate of top of line | ||
| y coordinate of top of line | ||
| Length of line | ||
| Width of line | 
typedef struct {
        /* Begin Common Fields */
        lglBarcodeShapeType  type; /* Always LGL_BARCODE_SHAPE_BOX. */
        gdouble              x;
        gdouble              y;
        /* End Common Fields */
        gdouble              width;
        gdouble              height;
} lglBarcodeShapeBox;
A solid box drawing primitive.
@ =  origin (x,y) from top left corner of barcode
             @---------+
             |         |
             |         |
             |         |
             |         | height
             |         |
             |         |
             |         |
             +---------+
                width
All units are in points ( 1 point = 1/72 inch ).
| lglBarcodeShapeType  | Always  | |
| x coordinate of top left corner of box | ||
| y coordinate of top left corner of box | ||
| Width of box | ||
| Height of box | 
typedef struct {
        /* Begin Common Fields */
        lglBarcodeShapeType  type; /* Always LGL_BARCODE_SHAPE_CHAR. */
        gdouble              x;
        gdouble              y;
        /* End Common Fields */
        gdouble              fsize;
        gchar                c;
} lglBarcodeShapeChar;
An single byte character drawing primitive.
@ =  origin (x,y) from top left corner of barcode
             ____ ------------
            /    \           ^
           /  /\  \          |
          /  /__\  \         |
         /  ______  \        | ~fsize
        /  /      \  \       |
       /__/        \__\      |
                             v
      @ ----------------------
All units are in points ( 1 point = 1/72 inch ).
| lglBarcodeShapeType  | Always  | |
| x coordinate of left baseline of character | ||
| y coordinate of left baseline of character | ||
| Font size | ||
| Character to add | 
typedef struct {
        /* Begin Common Fields */
        lglBarcodeShapeType  type; /* Always LGL_BARCODE_SHAPE_STRING. */
        gdouble              x;
        gdouble              y;
        /* End Common Fields */
        gdouble              fsize;
        gchar               *string;
} lglBarcodeShapeString;
A character string drawing primitive.
@ =  origin (x,y) from top left corner of barcode
             ____        _  ------------------
            /    \      | |                  ^
           /  /\  \     | |                  |
          /  /__\  \    | |___     ____      |
         /  ______  \   | ._  \   /  __|     | ~fsize
        /  /      \  \  | |_)  | |  (__      |
       /__/        \__\ |_.___/   \____|     |
                                             v
                          @ ------------------
                          x = horizontal center
All units are in points ( 1 point = 1/72 inch ).
| lglBarcodeShapeType  | Always  | |
| x coordinate of horizontal center of baseline of string | ||
| y coordinate of horizontal center of baseline of string | ||
| Font size | ||
| String to add | 
typedef struct {
        /* Begin Common Fields */
        lglBarcodeShapeType  type; /* Always LGL_BARCODE_SHAPE_RING. */
        gdouble              x;
        gdouble              y;
        /* End Common Fields */
        gdouble              radius;
        gdouble              line_width;
} lglBarcodeShapeRing;
A ring (an open circle) drawing primitive.
@ = origin (x,y) is centre of circle
               v  line_width
          _.-""""-._
        .'   ____   `.
       /   .'  ^ `.   \
      |   /        \   |
      |   |    @---|---|------
      |   \        /   |     ^
       \   `.____.'   /      | radius
        `._    ...._.'.......|
           `-....-'
All units are in points ( 1 point = 1/72 inch ).
| lglBarcodeShapeType  | Always  | |
| x coordinate of center of circle | ||
| y coordinate of center of circle | ||
| Radius of ring (center of line) | ||
| Width of line | 
typedef struct {
        /* Begin Common Fields */
        lglBarcodeShapeType  type; /* Always LGL_BARCODE_SHAPE_HEXAGON. */
        gdouble              x;
        gdouble              y;
        /* End Common Fields */
        gdouble              height;
} lglBarcodeShapeHexagon;
A solid regular hexagon (oriented with vertexes at top and bottom) drawing primitive.
@ = origin (x,y) is top of hexagon
                 @ ------------------
             _-"   "-_              ^
         _-"           "-_          |
      +"                   "+       |
      |                     |       |
      |                     |       |
      |                     |       | height
      |                     |       |
      |                     |       |
      +_                   _+       |
        "-_             _-"         |
           "-_       _-"            |
              "-_ _-"               v
                 " ------------------
All units are in points ( 1 point = 1/72 inch ).
| lglBarcodeShapeType  | Always  | |
| x coordinate of top point of hexagon | ||
| y coordinate of top point of hexagon | ||
| Height of hexagon |