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Minor tweaks: Don't allow GS1 in Codablock-F, Don't allow negative height rows, Warn user if using ECI mode

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This commit is contained in:
Robin Stuart 2016-09-14 22:34:59 +01:00
parent 51d737b8db
commit c351ed492e
2 changed files with 58 additions and 19 deletions
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50
backend/library.c
View File

@ -376,6 +376,38 @@ static int hibc(struct zint_symbol *symbol, unsigned char source[], size_t lengt
return error_number; return error_number;
} }
static void check_row_heights(struct zint_symbol *symbol) {
/* Check that rows with undefined heights are never less than 5x */
int large_bar_count;
int i;
int preset_height;
int large_bar_height;
large_bar_count = 0;
preset_height = 0;
for (i = 0; i < symbol->rows; i++) {
preset_height += symbol->row_height[i];
if (symbol->row_height[i] == 0) {
large_bar_count++;
}
}
large_bar_height = (symbol->height - preset_height) / large_bar_count;
if (large_bar_count == 0) {
symbol->height = preset_height;
}
if (large_bar_height < 5) {
for (i = 0; i < symbol->rows; i++) {
if (symbol->row_height[i] == 0) {
symbol->row_height[i] = 5;
preset_height += 5;
}
}
symbol->height = preset_height;
}
}
static int gs1_compliant(const int symbology) { static int gs1_compliant(const int symbology) {
/* Returns 1 if symbology supports GS1 data */ /* Returns 1 if symbology supports GS1 data */
@ -402,7 +434,6 @@ static int gs1_compliant(const int symbology) {
case BARCODE_CODE49: case BARCODE_CODE49:
case BARCODE_QRCODE: case BARCODE_QRCODE:
case BARCODE_DOTCODE: case BARCODE_DOTCODE:
case BARCODE_CODABLOCKF:
result = 1; result = 1;
break; break;
} }
@ -880,8 +911,9 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int lengt
symbol->symbology = BARCODE_AUSPOST; symbol->symbology = BARCODE_AUSPOST;
} }
if (symbol->symbology == 73) { if (symbol->symbology == 73) {
symbol->symbology = BARCODE_CODABLOCKF; strcpy(symbol->errtxt, "Symbology out of range, using Code 128");
symbol->input_mode = GS1_MODE; symbol->symbology = BARCODE_CODE128;
error_number = ZINT_WARN_INVALID_OPTION;
} }
if (symbol->symbology == 78) { if (symbol->symbology == 78) {
symbol->symbology = BARCODE_RSS14; symbol->symbology = BARCODE_RSS14;
@ -1003,8 +1035,8 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int lengt
/* Try another ECI mode */ /* Try another ECI mode */
symbol->eci = get_best_eci(local_source, length); symbol->eci = get_best_eci(local_source, length);
if (symbol->eci >= 3) { error_number = ZINT_WARN_USES_ECI;
strcpy(symbol->errtxt, "Encoded data includes ECI codes");
//printf("Data will encode with ECI %d\n", symbol->eci); //printf("Data will encode with ECI %d\n", symbol->eci);
switch (symbol->symbology) { switch (symbol->symbology) {
@ -1019,7 +1051,7 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int lengt
error_number = reduced_charset(symbol, local_source, length); error_number = reduced_charset(symbol, local_source, length);
break; break;
} }
}
} }
if ((symbol->symbology == BARCODE_CODE128) || (symbol->symbology == BARCODE_CODE128B)) { if ((symbol->symbology == BARCODE_CODE128) || (symbol->symbology == BARCODE_CODE128B)) {
@ -1033,9 +1065,15 @@ int ZBarcode_Encode(struct zint_symbol *symbol, unsigned char *source, int lengt
} }
if (error_number == 0) { if (error_number == 0) {
error_number = error_buffer; error_number = error_buffer;
} }
error_tag(symbol->errtxt, error_number); error_tag(symbol->errtxt, error_number);
if (error_number <= 5) {
check_row_heights(symbol);
}
return error_number; return error_number;
} }

1
backend/zint.h
View File

@ -218,6 +218,7 @@ extern "C" {
// Warning and error conditions // Warning and error conditions
#define ZINT_WARN_INVALID_OPTION 2 #define ZINT_WARN_INVALID_OPTION 2
#define ZINT_WARN_USES_ECI 3
#define ZINT_ERROR_TOO_LONG 5 #define ZINT_ERROR_TOO_LONG 5
#define ZINT_ERROR_INVALID_DATA 6 #define ZINT_ERROR_INVALID_DATA 6
#define ZINT_ERROR_INVALID_CHECK 7 #define ZINT_ERROR_INVALID_CHECK 7