--- /dev/null
+/*
+ * bc-backends.c
+ * Copyright (C) 2001-2009 Jim Evins <evins@snaught.com>.
+ *
+ * This file is part of gLabels.
+ *
+ * gLabels is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * gLabels 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gLabels. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "bc-backends.h"
+
+#include <glib.h>
+#include <glib/gi18n.h>
+
+#include "bc-builtin.h"
+#include "bc-gnubarcode.h"
+#include "bc-zint.h"
+#include "bc-iec16022.h"
+#include "bc-iec18004.h"
+
+#include "debug.h"
+
+
+/*========================================================*/
+/* Private macros and constants. */
+/*========================================================*/
+
+
+/*========================================================*/
+/* Private types. */
+/*========================================================*/
+
+typedef lglBarcode *(*glBarcodeNewFunc) (const gchar *id,
+ gboolean text_flag,
+ gboolean checksum_flag,
+ gdouble w,
+ gdouble h,
+ const gchar *digits);
+
+
+typedef struct {
+ gchar *id;
+ gchar *name;
+} Backend;
+
+
+typedef struct {
+ gchar *backend_id;
+ gchar *id;
+ gchar *name;
+ glBarcodeNewFunc new_barcode;
+ gboolean can_text;
+ gboolean text_optional;
+ gboolean can_checksum;
+ gboolean checksum_optional;
+ gchar *default_digits;
+ gboolean can_freeform;
+ guint prefered_n;
+} Style;
+
+
+/*========================================================*/
+/* Private globals. */
+/*========================================================*/
+
+static const Backend backends[] = {
+
+ { "built-in", N_("Built-in") },
+#ifdef HAVE_LIBBARCODE
+ { "gnu-barcode", "GNU Barcode" },
+#endif
+#ifdef HAVE_LIBZINT
+ { "zint", "Zint" },
+#endif
+#ifdef HAVE_LIBIEC16022
+ { "libiec16022", "IEC16022" },
+#endif
+#ifdef HAVE_LIBQRENCODE
+ { "libqrencode", "QREncode" },
+#endif
+
+ { NULL, NULL }
+};
+
+
+static const Style styles[] = {
+
+ { "built-in", "POSTNET", N_("POSTNET (any)"), gl_barcode_builtin_new,
+ FALSE, FALSE, TRUE, FALSE, "12345-6789-12", FALSE, 11},
+
+ { "built-in", "POSTNET-5", N_("POSTNET-5 (ZIP only)"), gl_barcode_builtin_new,
+ FALSE, FALSE, TRUE, FALSE, "12345", FALSE, 5},
+
+ { "built-in", "POSTNET-9", N_("POSTNET-9 (ZIP+4)"), gl_barcode_builtin_new,
+ FALSE, FALSE, TRUE, FALSE, "12345-6789", FALSE, 9},
+
+ { "built-in", "POSTNET-11", N_("POSTNET-11 (DPBC)"), gl_barcode_builtin_new,
+ FALSE, FALSE, TRUE, FALSE, "12345-6789-12", FALSE, 11},
+
+ { "built-in", "CEPNET", N_("CEPNET"), gl_barcode_builtin_new,
+ FALSE, FALSE, TRUE, FALSE, "12345-678", FALSE, 8},
+
+ { "built-in", "ONECODE", N_("One Code"), gl_barcode_builtin_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678901234567890", FALSE, 20},
+
+ { "built-in", "Code39", N_("Code 39"), gl_barcode_builtin_new,
+ TRUE, TRUE, TRUE, TRUE, "1234567890", TRUE, 10},
+
+ { "built-in", "Code39Ext", N_("Code 39 Extended"), gl_barcode_builtin_new,
+ TRUE, TRUE, TRUE, TRUE, "1234567890", TRUE, 10},
+
+#ifdef HAVE_LIBBARCODE
+
+ { "gnu-barcode", "EAN", N_("EAN (any)"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "000000000000 00000", FALSE, 17},
+
+ { "gnu-barcode", "EAN-8", N_("EAN-8"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000", FALSE, 7},
+
+ { "gnu-barcode", "EAN-8+2", N_("EAN-8 +2"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000 00", FALSE, 9},
+
+ { "gnu-barcode", "EAN-8+5", N_("EAN-8 +5"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000 00000", FALSE, 12},
+
+ { "gnu-barcode", "EAN-13", N_("EAN-13"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "000000000000", FALSE, 12},
+
+ { "gnu-barcode", "EAN-13+2", N_("EAN-13 +2"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "000000000000 00", FALSE, 14},
+
+ { "gnu-barcode", "EAN-13+5", N_("EAN-13 +5"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "000000000000 00000", FALSE, 17},
+
+ { "gnu-barcode", "UPC", N_("UPC (UPC-A or UPC-E)"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "00000000000 00000", FALSE, 16},
+
+ { "gnu-barcode", "UPC-A", N_("UPC-A"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "00000000000", FALSE, 11},
+
+ { "gnu-barcode", "UPC-A+2", N_("UPC-A +2"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "00000000000 00", FALSE, 13},
+
+ { "gnu-barcode", "UPC-A+5", N_("UPC-A +5"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "00000000000 00000", FALSE, 16},
+
+ { "gnu-barcode", "UPC-E", N_("UPC-E"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "000000", FALSE, 6},
+
+ { "gnu-barcode", "UPC-E+2", N_("UPC-E +2"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "000000 00", FALSE, 8},
+
+ { "gnu-barcode", "UPC-E+5", N_("UPC-E +5"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "000000 00000", FALSE, 11},
+
+ { "gnu-barcode", "ISBN", N_("ISBN"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0-00000-000-0", FALSE, 10},
+
+ { "gnu-barcode", "ISBN+5", N_("ISBN +5"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0-00000-000-0 00000", FALSE, 15},
+
+ { "gnu-barcode", "Code39", N_("Code 39"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "Code128", N_("Code 128"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "Code128C", N_("Code 128C"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "Code128B", N_("Code 128B"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "I25", N_("Interleaved 2 of 5"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "CBR", N_("Codabar"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "MSI", N_("MSI"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "PLS", N_("Plessey"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, TRUE, "0000000000", TRUE, 10},
+
+ { "gnu-barcode", "Code93", N_("Code 93"), gl_barcode_gnubarcode_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+#endif /* HAVE_LIBBARCODE */
+
+#ifdef HAVE_LIBZINT
+
+ { "zint", "AUSP", N_("Australia Post Standard"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678901234567890123", TRUE, 23},
+
+ { "zint", "AUSRP", N_("Australia Post Reply Paid"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678", TRUE, 8},
+
+ { "zint", "AUSRT", N_("Australia Post Route Code"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678", TRUE, 8},
+
+ { "zint", "AUSRD", N_("Australia Post Redirect"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678", TRUE, 8},
+
+ { "zint", "AZTEC", N_("Aztec Code"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "1234567890", TRUE, 10},
+
+ { "zint", "AZRUN", N_("Aztec Rune"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "255", TRUE, 3},
+
+ { "zint", "CBR", N_("Codabar"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "ABCDABCDAB", TRUE, 10},
+
+ { "zint", "Code1", N_("Code One"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "Code11", N_("Code 11"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "C16K", N_("Code 16K"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "C25M", N_("Code 2 of 5 Matrix"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "C25I", N_("Code 2 of 5 IATA"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "C25DL", N_("Code 2 of 5 Data Logic"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "Code32", N_("Code 32 (Italian Pharmacode)"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "12345678", TRUE, 8},
+
+ { "zint", "Code39", N_("Code 39"), gl_barcode_zint_new,
+ TRUE, TRUE, FALSE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "Code39E", N_("Code 39 Extended"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "Code49", N_("Code 49"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "Code93", N_("Code 93"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "Code128", N_("Code 128"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "Code128B", N_("Code 128 (Mode C supression)"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "DAFT", N_("DAFT Code"), gl_barcode_zint_new,
+ FALSE, FALSE, FALSE, FALSE, "DAFTDAFTDAFTDAFT", TRUE, 16},
+
+ { "zint", "DMTX", N_("Data Matrix"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "DPL", N_("Deutsche Post Leitcode"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "1234567890123", TRUE, 13},
+
+ { "zint", "DPI", N_("Deutsche Post Identcode"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "12345678901", TRUE, 11},
+
+ { "zint", "KIX", N_("Dutch Post KIX Code"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "EAN", N_("EAN"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "1234567890123", FALSE, 13},
+
+ { "zint", "GMTX", N_("Grid Matrix"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "GS1-128", N_("GS1-128"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "[01]12345678901234", FALSE, 18},
+
+ { "zint", "RSS14", N_("GS1 DataBar-14"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "1234567890123", TRUE, 13},
+
+ { "zint", "RSSLTD", "GS1 DataBar-14 Limited", gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "1234567890123", TRUE, 13},
+
+ { "zint", "RSSEXP", "GS1 DataBar Extended", gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "[01]12345678901234", FALSE, 18},
+
+ { "zint", "RSSS", N_("GS1 DataBar-14 Stacked"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "RSSSO", N_("GS1 DataBar-14 Stacked Omni."), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "RSSSE", N_("GS1 DataBar Extended Stacked"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "[01]12345678901234", FALSE, 18},
+
+ { "zint", "HIBC128", N_("HIBC Code 128"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "HIBC39", N_("HIBC Code 39"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "HIBCDM", N_("HIBC Data Matrix"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "HIBCQR", N_("HIBC QR Code"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "HIBCPDF", N_("HIBC PDF417"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "HIBCMPDF", N_("HIBC Micro PDF417"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "HIBCAZ", N_("HIBC Aztec Code"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "I25", N_("Interleaved 2 of 5"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "ISBN", N_("ISBN"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "123456789", FALSE, 9},
+
+ { "zint", "ITF14", N_("ITF-14"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "JAPAN", N_("Japanese Postal"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "KOREA", N_("Korean Postal"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "123456", FALSE, 6},
+
+ { "zint", "LOGM", N_("LOGMARS"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "MAXI", N_("Maxicode"), gl_barcode_zint_new,
+ FALSE, FALSE, FALSE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "MPDF", N_("Micro PDF417"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "MQR", N_("Micro QR Code"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "MSI", N_("MSI Plessey"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "NVE", N_("NVE-18"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "12345678901234567", FALSE, 17},
+
+ { "zint", "PDF", N_("PDF417"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "PDFT", N_("PDF417 Truncated"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "PLAN", N_("PLANET"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "POSTNET", N_("PostNet"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "PHARMA", N_("Pharmacode"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "123456", FALSE, 6},
+
+ { "zint", "PHARMA2", N_("Pharmacode 2-track"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678", FALSE, 8},
+
+ { "zint", "PZN", N_("Pharmazentral Nummer (PZN)"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "123456", FALSE, 6},
+
+ { "zint", "QR", N_("QR Code"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "RM4", N_("Royal Mail 4-State"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "TELE", N_("Telepen"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "TELEX", N_("Telepen Numeric"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+ { "zint", "UPC-A", N_("UPC-A"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "12345678901", FALSE, 11},
+
+ { "zint", "UPC-E", N_("UPC-E"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "1234567", FALSE, 7},
+
+ { "zint", "USPS", N_("USPS One Code"), gl_barcode_zint_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678901234567890", TRUE, 20},
+
+ { "zint", "PLS", N_("UK Plessey"), gl_barcode_zint_new,
+ TRUE, TRUE, TRUE, FALSE, "0000000000", TRUE, 10},
+
+#endif /* HAVE_LIBZINT */
+
+#ifdef HAVE_LIBIEC16022
+
+ { "libiec16022", "IEC16022", N_("IEC16022 (DataMatrix)"), gl_barcode_iec16022_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678", TRUE, 8},
+
+#endif /* HAVE_LIBIEC16022 */
+
+#ifdef HAVE_LIBQRENCODE
+
+ { "libqrencode", "IEC18004", N_("IEC18004 (QRCode)"), gl_barcode_iec18004_new,
+ FALSE, FALSE, TRUE, FALSE, "12345678", TRUE, 8},
+
+#endif /* HAVE_LIBQRENCODE */
+
+ { NULL, NULL, NULL, NULL, FALSE, FALSE, FALSE, FALSE, NULL, FALSE, 0}
+
+};
+
+
+/*========================================================*/
+/* Private function prototypes. */
+/*========================================================*/
+
+static gint backend_id_to_index (const gchar *id);
+static gint backend_name_to_index (const gchar *name);
+static gint style_id_to_index (const gchar *backend_id,
+ const gchar *id);
+static gint style_name_to_index (const gchar *backend_id,
+ const gchar *name);
+
+/*---------------------------------------------------------------------------*/
+/* Convert backend id to index into backends table. */
+/*---------------------------------------------------------------------------*/
+static gint
+backend_id_to_index (const gchar *id)
+{
+ gint i;
+
+ if (id == NULL)
+ {
+ return 0; /* NULL request default. I.e., the first element. */
+ }
+
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if (g_ascii_strcasecmp (id, backends[i].id) == 0)
+ {
+ return i;
+ }
+ }
+
+ g_message( "Unknown barcode id \"%s\"", id );
+ return 0;
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* Convert backend name to index into backends table. */
+/*---------------------------------------------------------------------------*/
+static gint
+backend_name_to_index (const gchar *name)
+{
+ gint i;
+
+ if (name == NULL)
+ {
+ return 0; /* NULL request default. I.e., the first element. */
+ }
+
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if (strcmp (name, gettext (backends[i].name)) == 0)
+ {
+ return i;
+ }
+ }
+
+ g_message( "Unknown barcode name \"%s\"", name );
+ return 0;
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* Convert style id to index into styles table. */
+/*---------------------------------------------------------------------------*/
+static gint
+style_id_to_index (const gchar *backend_id,
+ const gchar *id)
+{
+ gint i;
+
+ if (backend_id == NULL)
+ {
+ return 0; /* NULL request default. I.e., the first element. */
+ }
+
+ if (id == NULL)
+ {
+ /* Search for first element with given backend_id. */
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if (g_ascii_strcasecmp (backend_id, styles[i].backend_id) == 0)
+ {
+ return i;
+ }
+ }
+ g_message( "Unknown barcode backend id \"%s\"", backend_id );
+ return 0;
+ }
+
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if ((g_ascii_strcasecmp (backend_id, styles[i].backend_id) == 0) &&
+ (g_ascii_strcasecmp (id, styles[i].id) == 0))
+ {
+ return i;
+ }
+ }
+
+ g_message( "Unknown barcode id \"%s\"", id );
+ return 0;
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* Convert style name to index into styles table. */
+/*---------------------------------------------------------------------------*/
+static gint
+style_name_to_index (const gchar *backend_id,
+ const gchar *name)
+{
+ gint i;
+
+ if (backend_id == NULL)
+ {
+ return 0; /* NULL request default. I.e., the first element. */
+ }
+
+ if (name == NULL)
+ {
+ /* Search for first element with given backend_id. */
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if (g_ascii_strcasecmp (backend_id, styles[i].backend_id) == 0)
+ {
+ return i;
+ }
+ }
+ g_message( "Unknown barcode backend id \"%s\"", backend_id );
+ return 0;
+ }
+
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if ((g_ascii_strcasecmp (backend_id, styles[i].backend_id) == 0) &&
+ (strcmp (name, gettext (styles[i].name)) == 0))
+ {
+ return i;
+ }
+ }
+
+ g_message( "Unknown barcode name \"%s\"", name );
+ return 0;
+}
+
+
+/*****************************************************************************/
+/* Get a list of names for configured backends. */
+/*****************************************************************************/
+GList *
+gl_barcode_backends_get_backend_list (void)
+{
+ gint i;
+ GList *list = NULL;
+
+ for (i=0; backends[i].id != NULL; i++)
+ {
+ list = g_list_prepend (list, g_strdup (gettext (backends[i].name)));
+ }
+
+ return g_list_reverse (list);
+}
+
+
+/*****************************************************************************/
+/* Free up a previously allocated list of backend names. */
+/*****************************************************************************/
+void
+gl_barcode_backends_free_backend_list (GList *backend_list)
+{
+ GList *p;
+
+ for (p=backend_list; p != NULL; p=p->next)
+ {
+ g_free (p->data);
+ p->data = NULL;
+ }
+
+ g_list_free (backend_list);
+}
+
+
+/*****************************************************************************/
+/* Convert backend id to name. */
+/*****************************************************************************/
+const gchar *
+gl_barcode_backends_backend_id_to_name (const gchar *backend_id)
+{
+ return gettext (backends[backend_id_to_index (backend_id)].name);
+}
+
+
+/*****************************************************************************/
+/* Convert backend name to id. */
+/*****************************************************************************/
+const gchar *
+gl_barcode_backends_backend_name_to_id (const gchar *backend_name)
+{
+ return backends[backend_name_to_index (backend_name)].id;
+}
+
+
+/*****************************************************************************/
+/* Test if backend id is valid. */
+/*****************************************************************************/
+gboolean
+gl_barcode_backends_is_backend_id_valid (const gchar *backend_id)
+{
+ gint i;
+
+ if (backend_id == NULL)
+ {
+ return FALSE;
+ }
+
+ for (i=0; backends[i].id != NULL; i++)
+ {
+ if (g_ascii_strcasecmp (backend_id, backends[i].id) == 0)
+ {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+
+/*****************************************************************************/
+/* Guess backend id from style id (for backwards compatability). */
+/*****************************************************************************/
+const gchar *
+gl_barcode_backends_guess_backend_id (const gchar *id)
+{
+ gint i;
+
+ if (id == NULL)
+ {
+ return styles[0].backend_id;
+ }
+
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if (g_ascii_strcasecmp (id, styles[i].id) == 0)
+ {
+ return styles[i].backend_id;
+ }
+ }
+
+ g_message( "Unknown barcode id \"%s\"", id );
+ return styles[0].backend_id;
+}
+
+
+/*****************************************************************************/
+/* Get a list of names for valid barcode styles. */
+/*****************************************************************************/
+GList *
+gl_barcode_backends_get_styles_list (const gchar *backend_id)
+{
+ gint i;
+ GList *list = NULL;
+
+ for (i=0; styles[i].id != NULL; i++)
+ {
+ if ( g_ascii_strcasecmp (styles[i].backend_id, backend_id) == 0 )
+ {
+ list = g_list_prepend (list, g_strdup (gettext (styles[i].name)));
+ }
+ }
+
+ return g_list_reverse (list);
+}
+
+
+/*****************************************************************************/
+/* Free up a previously allocated list of style names. */
+/*****************************************************************************/
+void
+gl_barcode_backends_free_styles_list (GList *styles_list)
+{
+ GList *p;
+
+ for (p=styles_list; p != NULL; p=p->next)
+ {
+ g_free (p->data);
+ p->data = NULL;
+ }
+
+ g_list_free (styles_list);
+}
+
+
+/*****************************************************************************/
+/* Convert style to text. */
+/*****************************************************************************/
+const gchar *
+gl_barcode_backends_style_id_to_name (const gchar *backend_id,
+ const gchar *id)
+{
+ return gettext (styles[style_id_to_index (backend_id, id)].name);
+}
+
+
+/*****************************************************************************/
+/* Convert name to style. */
+/*****************************************************************************/
+const gchar *
+gl_barcode_backends_style_name_to_id (const gchar *backend_id,
+ const gchar *name)
+{
+ return styles[style_name_to_index (backend_id, name)].id;
+}
+
+
+/*****************************************************************************/
+/* Return an appropriate set of digits for the given barcode style. */
+/*****************************************************************************/
+gchar *
+gl_barcode_backends_style_default_digits (const gchar *backend_id,
+ const gchar *id,
+ guint n)
+{
+ int i;
+
+ i = style_id_to_index (backend_id, id);
+
+ if (styles[i].can_freeform)
+ {
+ return g_strnfill (MAX (n,1), '0');
+ }
+ else
+ {
+ return g_strdup (styles[i].default_digits);
+ }
+}
+
+
+/*****************************************************************************/
+/* Query text capabilities. */
+/*****************************************************************************/
+gboolean
+gl_barcode_backends_style_can_text (const gchar *backend_id,
+ const gchar *id)
+{
+ return styles[style_id_to_index (backend_id, id)].can_text;
+}
+
+
+gboolean
+gl_barcode_backends_style_text_optional (const gchar *backend_id,
+ const gchar *id)
+{
+ return styles[style_id_to_index (backend_id, id)].text_optional;
+}
+
+
+/*****************************************************************************/
+/* Query checksum capabilities. */
+/*****************************************************************************/
+gboolean
+gl_barcode_backends_style_can_csum (const gchar *backend_id,
+ const gchar *id)
+{
+ return styles[style_id_to_index (backend_id, id)].can_checksum;
+}
+
+
+gboolean
+gl_barcode_backends_style_csum_optional (const gchar *backend_id,
+ const gchar *id)
+{
+ return styles[style_id_to_index (backend_id, id)].checksum_optional;
+}
+
+
+/*****************************************************************************/
+/* Query if freeform input is allowed. */
+/*****************************************************************************/
+gboolean
+gl_barcode_backends_style_can_freeform (const gchar *backend_id,
+ const gchar *id)
+{
+ return styles[style_id_to_index (backend_id, id)].can_freeform;
+}
+
+
+/*****************************************************************************/
+/* Query prefered number of digits of input. */
+/*****************************************************************************/
+guint
+gl_barcode_backends_style_get_prefered_n (const gchar *backend_id,
+ const gchar *id)
+{
+ return styles[style_id_to_index (backend_id, id)].prefered_n;
+}
+
+
+/*****************************************************************************/
+/* Call appropriate barcode backend to create barcode in intermediate format.*/
+/*****************************************************************************/
+lglBarcode *
+gl_barcode_backends_new_barcode (const gchar *backend_id,
+ const gchar *id,
+ gboolean text_flag,
+ gboolean checksum_flag,
+ gdouble w,
+ gdouble h,
+ const gchar *digits)
+{
+ lglBarcode *gbc;
+ gint i;
+
+ g_return_val_if_fail (digits!=NULL, NULL);
+
+ i = style_id_to_index (backend_id, id);
+
+ gbc = styles[i].new_barcode (styles[i].id,
+ text_flag,
+ checksum_flag,
+ w,
+ h,
+ digits);
+
+ return gbc;
+}
+
+
+
+/*
+ * Local Variables: -- emacs
+ * mode: C -- emacs
+ * c-basic-offset: 8 -- emacs
+ * tab-width: 8 -- emacs
+ * indent-tabs-mode: nil -- emacs
+ * End: -- emacs
+ */