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/*
* lgl-barcode.c
* Copyright (C) 2001-2010 Jim Evins <evins@snaught.com>.
*
* This file is part of libglbarcode.
*
* libglbarcode is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libglbarcode is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libglbarcode. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "lgl-barcode.h"
/*========================================================*/
/* Private macros and constants. */
/*========================================================*/
/*========================================================*/
/* Private types. */
/*========================================================*/
/*========================================================*/
/* Private globals. */
/*========================================================*/
/*========================================================*/
/* Private function prototypes. */
/*========================================================*/
static void lgl_barcode_add_shape (lglBarcode *bc,
lglBarcodeShape *shape);
static void lgl_barcode_shape_free (lglBarcodeShape *shape);
/*****************************************************************************/
/**
* lgl_barcode_new:
*
* Allocate a new #lglBarcode structure.
*
* This function allocates a new #lglBarcode structure.
*
* <note><para>
* This function is intended to be used internally by barcode implementations.
* Typically an end-user would use lgl_barcode_create() instead.
* </para></note>
*
*
* Returns: A newly allocated #lglBarcode structure. Use lgl_barcode_free() to
* free it.
*
*/
lglBarcode *
lgl_barcode_new (void)
{
return g_new0 (lglBarcode, 1);
}
/*****************************************************************************/
/**
* lgl_barcode_free:
* @bc: The #lglBarcode structure to free
*
* Free a previously allocated #lglBarcode structure.
*
*/
void
lgl_barcode_free (lglBarcode *bc)
{
GList *p;
if (bc != NULL)
{
for (p = bc->shapes; p != NULL; p = p->next)
{
lgl_barcode_shape_free ((lglBarcodeShape *)p->data);
}
g_list_free (bc->shapes);
g_free (bc);
}
}
/*****************************************************************************/
/**
* lgl_barcode_add_line:
* @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
*
* 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 ).
*
* <note><para>
* This function is intended to be used internally by barcode implementations.
* </para></note>
*
*/
void
lgl_barcode_add_line (lglBarcode *bc,
gdouble x,
gdouble y,
gdouble length,
gdouble width)
{
lglBarcodeShapeLine *line_shape = g_new0 (lglBarcodeShapeLine, 1);
line_shape->type = LGL_BARCODE_SHAPE_LINE;
line_shape->x = x;
line_shape->y = y;
line_shape->length = length;
line_shape->width = width;
lgl_barcode_add_shape (bc, (lglBarcodeShape *)line_shape);
}
/*****************************************************************************/
/**
* lgl_barcode_add_box:
* @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
*
* Add a box to barcode. Coordinates are relative to top left corner
* of barcode. All units are in points ( 1 point = 1/72 inch ).
*
* <note><para>
* This function is intended to be used internally by barcode implementations.
* </para></note>
*
*/
void
lgl_barcode_add_box (lglBarcode *bc,
gdouble x,
gdouble y,
gdouble width,
gdouble height)
{
lglBarcodeShapeBox *box_shape = g_new0 (lglBarcodeShapeBox, 1);
box_shape->type = LGL_BARCODE_SHAPE_BOX;
box_shape->x = x;
box_shape->y = y;
box_shape->width = width;
box_shape->height = height;
lgl_barcode_add_shape (bc, (lglBarcodeShape *)box_shape);
}
/*****************************************************************************/
/**
* lgl_barcode_add_char:
* @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
*
* 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 ).
*
* <note><para>
* This function is intended to be used internally by barcode implementations.
* </para></note>
*
*/
void
lgl_barcode_add_char (lglBarcode *bc,
gdouble x,
gdouble y,
gdouble fsize,
gchar c)
{
lglBarcodeShapeChar *char_shape = g_new0 (lglBarcodeShapeChar, 1);
char_shape->type = LGL_BARCODE_SHAPE_CHAR;
char_shape->x = x;
char_shape->y = y;
char_shape->fsize = fsize;
char_shape->c = c;
lgl_barcode_add_shape (bc, (lglBarcodeShape *)char_shape);
}
/*****************************************************************************/
/**
* lgl_barcode_add_string:
* @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
*
* 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 ).
*
* <note><para>
* This function is intended to be used internally by barcode implementations.
* </para></note>
*
*/
void
lgl_barcode_add_string (lglBarcode *bc,
gdouble x,
gdouble y,
gdouble fsize,
gchar *string,
gsize length)
{
lglBarcodeShapeString *string_shape = g_new0 (lglBarcodeShapeString, 1);
string_shape->type = LGL_BARCODE_SHAPE_STRING;
string_shape->x = x;
string_shape->y = y;
string_shape->fsize = fsize;
string_shape->string = g_strndup(string, length);
lgl_barcode_add_shape (bc, (lglBarcodeShape *)string_shape);
}
/*****************************************************************************/
/**
* lgl_barcode_add_ring:
* @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
*
* Add a ring to barcode. Coordinates are relative to top left corner
* of barcode. All units are in points ( 1 point = 1/72 inch ).
*
* <note><para>
* This function is intended to be used internally by barcode implementations.
* </para></note>
*
*/
void
lgl_barcode_add_ring (lglBarcode *bc,
gdouble x,
gdouble y,
gdouble radius,
gdouble line_width)
{
lglBarcodeShapeRing *ring_shape = g_new0 (lglBarcodeShapeRing, 1);
ring_shape->type = LGL_BARCODE_SHAPE_RING;
ring_shape->x = x;
ring_shape->y = y;
ring_shape->radius = radius;
ring_shape->line_width = line_width;
lgl_barcode_add_shape (bc, (lglBarcodeShape *)ring_shape);
}
/*****************************************************************************/
/**
* lgl_barcode_add_hexagon:
* @bc: An #lglBarcode structure
* @x: x coordinate of top point of hexagon
* @y: y coordinate of top point of hexagon
* @height: Height of hexagon
*
* 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 ).
*
* <note><para>
* This function is intended to be used internally by barcode implementations.
* </para></note>
*
*/
void
lgl_barcode_add_hexagon (lglBarcode *bc,
gdouble x,
gdouble y,
gdouble height)
{
lglBarcodeShapeHexagon *hexagon_shape = g_new0 (lglBarcodeShapeHexagon, 1);
hexagon_shape->type = LGL_BARCODE_SHAPE_HEXAGON;
hexagon_shape->x = x;
hexagon_shape->y = y;
hexagon_shape->height = height;
lgl_barcode_add_shape (bc, (lglBarcodeShape *)hexagon_shape);
}
/*****************************************************************************/
/* Add shape to barcode. */
/*****************************************************************************/
static void
lgl_barcode_add_shape (lglBarcode *bc,
lglBarcodeShape *shape)
{
g_return_if_fail (bc);
g_return_if_fail (shape);
bc->shapes = g_list_prepend (bc->shapes, shape);
}
/*****************************************************************************/
/* Free a shape primitive. */
/*****************************************************************************/
static void
lgl_barcode_shape_free (lglBarcodeShape *shape)
{
switch (shape->type)
{
case LGL_BARCODE_SHAPE_STRING:
g_free (shape->string.string);
break;
default:
break;
}
g_free (shape);
}
/*
* Local Variables: -- emacs
* mode: C -- emacs
* c-basic-offset: 8 -- emacs
* tab-width: 8 -- emacs
* indent-tabs-mode: nil -- emacs
* End: -- emacs
*/
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