CODE16K fixes; separator default 1; raster/vector.c quiet_zones, output.c; #191

2025-06-02 07:59:50 -04:00 · 2020-05-21 18:22:28 +01:00 · 2020-05-21 18:22:28 +01:00 · 7be63a00b6
commit 7be63a00b6
parent 9f56a1c35e
36 changed files with 1791 additions and 675 deletions
--- a/backend/output.c
+++ b/backend/output.c
@ -0,0 +1,114 @@
+/*  output.c - Common routines for raster/vector
+
+    libzint - the open source barcode library
+    Copyright (C) 2020 Robin Stuart <rstuart114@gmail.com>
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. Neither the name of the project nor the names of its contributors
+       may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+ */
+/* vim: set ts=4 sw=4 et : */
+
+#include <string.h>
+#include "common.h"
+#include "output.h"
+
+#define SSET "0123456789ABCDEF"
+
+/* Check colour options are good. Note: using raster.c error nos 651-654 */
+INTERNAL int check_colour_options(struct zint_symbol *symbol) {
+    int error_number;
+
+    if (strlen(symbol->fgcolour) != 6) {
+        strcpy(symbol->errtxt, "651: Malformed foreground colour target");
+        return ZINT_ERROR_INVALID_OPTION;
+    }
+    if (strlen(symbol->bgcolour) != 6) {
+        strcpy(symbol->errtxt, "652: Malformed background colour target");
+        return ZINT_ERROR_INVALID_OPTION;
+    }
+
+    to_upper((unsigned char *) symbol->fgcolour);
+    to_upper((unsigned char *) symbol->bgcolour);
+
+    error_number = is_sane(SSET, (unsigned char *) symbol->fgcolour, strlen(symbol->fgcolour));
+    if (error_number == ZINT_ERROR_INVALID_DATA) {
+        strcpy(symbol->errtxt, "653: Malformed foreground colour target");
+        return ZINT_ERROR_INVALID_OPTION;
+    }
+
+    error_number = is_sane(SSET, (unsigned char *) symbol->bgcolour, strlen(symbol->fgcolour));
+    if (error_number == ZINT_ERROR_INVALID_DATA) {
+        strcpy(symbol->errtxt, "654: Malformed background colour target");
+        return ZINT_ERROR_INVALID_OPTION;
+    }
+
+    return 0;
+}
+
+/* Return minimum quiet zones for each symbology */
+static void quiet_zones(struct zint_symbol *symbol, int *left, int *right, int *top, int *bottom) {
+    *left = *right = *top = *bottom = 0;
+
+    switch (symbol->symbology) {
+        case BARCODE_CODE16K:
+            /* BS EN 12323:2005 Section 4.5 c) */
+            *left = 10;
+            *right = 1;
+            break;
+        case BARCODE_CODE49:
+            /* ANSI/AIM BC6-2000 Section 2.4 */
+            *left = 10;
+            *right = 1;
+            break;
+        case BARCODE_CODABLOCKF:
+        case BARCODE_HIBC_BLOCKF:
+            /* AIM ISS-X-24 Section 4.6.1 */
+            *left = 10;
+            *right = 10;
+            break;
+        /* TODO: others */
+    }
+}
+
+/* Set left (x), top (y), right and bottom offsets for whitespace */
+INTERNAL void set_whitespace_offsets(struct zint_symbol *symbol, int *xoffset, int *yoffset, int *roffset, int *boffset) {
+    int qz_left, qz_right, qz_top, qz_bottom;
+
+    quiet_zones(symbol, &qz_left, &qz_right, &qz_top, &qz_bottom);
+
+    *xoffset = symbol->whitespace_width + qz_left;
+    *roffset = symbol->whitespace_width + qz_right;
+    if (symbol->output_options & BARCODE_BOX) {
+        *xoffset += symbol->border_width;
+        *roffset += symbol->border_width;
+    }
+
+    *yoffset = qz_top;
+    *boffset = qz_bottom;
+    if (symbol->output_options & (BARCODE_BOX | BARCODE_BIND)) {
+        *yoffset += symbol->border_width;
+        *boffset += symbol->border_width;
+    }
+}