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2019-09-11 HaO E-Mail Christian Schmitz 2019-09-10: svg_plot: check for null symbol->vector.

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Harald Oehlmann 2019-09-11 09:51:05 +02:00
parent faeb20dcd7
commit 4dfc090416
1 changed files with 143 additions and 138 deletions
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281
backend/svg.c
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@ -1,138 +1,143 @@
/* svg.c - Scalable Vector Graphics */ /* svg.c - Scalable Vector Graphics */
/* /*
libzint - the open source barcode library libzint - the open source barcode library
Copyright (C) 2009-2018 Robin Stuart <rstuart114@gmail.com> Copyright (C) 2009-2018 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions modification, are permitted provided that the following conditions
are met: are met:
1. Redistributions of source code must retain the above copyright 1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer. notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright 2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution. documentation and/or other materials provided with the distribution.
3. Neither the name of the project nor the names of its contributors 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 may be used to endorse or promote products derived from this software
without specific prior written permission. without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 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 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE. SUCH DAMAGE.
*/ */
#include <locale.h> #include <locale.h>
#include <string.h> #include <string.h>
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
#include <math.h> #include <math.h>
#ifdef _MSC_VER #ifdef _MSC_VER
#include <malloc.h> #include <malloc.h>
#endif #endif
#include "common.h" #include "common.h"
int svg_plot(struct zint_symbol *symbol) { int svg_plot(struct zint_symbol *symbol) {
FILE *fsvg; FILE *fsvg;
int error_number = 0; int error_number = 0;
const char *locale = NULL; const char *locale = NULL;
float ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy; float ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy;
float radius; float radius;
struct zint_vector_rect *rect; struct zint_vector_rect *rect;
struct zint_vector_hexagon *hex; struct zint_vector_hexagon *hex;
struct zint_vector_circle *circle; struct zint_vector_circle *circle;
struct zint_vector_string *string; struct zint_vector_string *string;
if (symbol->output_options & BARCODE_STDOUT) { /* Check for no created vector set */
fsvg = stdout; /* E-Mail Christian Schmitz 2019-09-10: reason unknown */
} else { if (symbol->vector == NULL) {
fsvg = fopen(symbol->outfile, "w"); return ZINT_ERROR_INVALID_DATA;
} }
if (fsvg == NULL) { if (symbol->output_options & BARCODE_STDOUT) {
strcpy(symbol->errtxt, "660: Could not open output file"); fsvg = stdout;
return ZINT_ERROR_FILE_ACCESS; } else {
} fsvg = fopen(symbol->outfile, "w");
}
locale = setlocale(LC_ALL, "C"); if (fsvg == NULL) {
strcpy(symbol->errtxt, "660: Could not open output file");
/* Start writing the header */ return ZINT_ERROR_FILE_ACCESS;
fprintf(fsvg, "<?xml version=\"1.0\" standalone=\"no\"?>\n"); }
fprintf(fsvg, "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n");
fprintf(fsvg, " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n"); locale = setlocale(LC_ALL, "C");
fprintf(fsvg, "<svg width=\"%d\" height=\"%d\" version=\"1.1\"\n", (int) ceil(symbol->vector->width), (int) ceil(symbol->vector->height));
fprintf(fsvg, " xmlns=\"http://www.w3.org/2000/svg\">\n"); /* Start writing the header */
fprintf(fsvg, " <desc>Zint Generated Symbol\n"); fprintf(fsvg, "<?xml version=\"1.0\" standalone=\"no\"?>\n");
fprintf(fsvg, " </desc>\n"); fprintf(fsvg, "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n");
fprintf(fsvg, "\n <g id=\"barcode\" fill=\"#%s\">\n", symbol->fgcolour); fprintf(fsvg, " \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
fprintf(fsvg, "<svg width=\"%d\" height=\"%d\" version=\"1.1\"\n", (int) ceil(symbol->vector->width), (int) ceil(symbol->vector->height));
fprintf(fsvg, " <rect x=\"0\" y=\"0\" width=\"%d\" height=\"%d\" fill=\"#%s\" />\n", (int) ceil(symbol->vector->width), (int) ceil(symbol->vector->height), symbol->bgcolour); fprintf(fsvg, " xmlns=\"http://www.w3.org/2000/svg\">\n");
fprintf(fsvg, " <desc>Zint Generated Symbol\n");
fprintf(fsvg, " </desc>\n");
rect = symbol->vector->rectangles; fprintf(fsvg, "\n <g id=\"barcode\" fill=\"#%s\">\n", symbol->fgcolour);
while (rect) {
fprintf(fsvg, " <rect x=\"%.2f\" y=\"%.2f\" width=\"%.2f\" height=\"%.2f\" />\n", rect->x, rect->y, rect->width, rect->height); fprintf(fsvg, " <rect x=\"0\" y=\"0\" width=\"%d\" height=\"%d\" fill=\"#%s\" />\n", (int) ceil(symbol->vector->width), (int) ceil(symbol->vector->height), symbol->bgcolour);
rect = rect->next;
}
rect = symbol->vector->rectangles;
hex = symbol->vector->hexagons; while (rect) {
while (hex) { fprintf(fsvg, " <rect x=\"%.2f\" y=\"%.2f\" width=\"%.2f\" height=\"%.2f\" />\n", rect->x, rect->y, rect->width, rect->height);
radius = hex->diameter / 2.0; rect = rect->next;
ay = hex->y + (1.0 * radius); }
by = hex->y + (0.5 * radius);
cy = hex->y - (0.5 * radius); hex = symbol->vector->hexagons;
dy = hex->y - (1.0 * radius); while (hex) {
ey = hex->y - (0.5 * radius); radius = hex->diameter / 2.0;
fy = hex->y + (0.5 * radius); ay = hex->y + (1.0 * radius);
ax = hex->x; by = hex->y + (0.5 * radius);
bx = hex->x + (0.86 * radius); cy = hex->y - (0.5 * radius);
cx = hex->x + (0.86 * radius); dy = hex->y - (1.0 * radius);
dx = hex->x; ey = hex->y - (0.5 * radius);
ex = hex->x - (0.86 * radius); fy = hex->y + (0.5 * radius);
fx = hex->x - (0.86 * radius); ax = hex->x;
fprintf(fsvg, " <path d=\"M %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f Z\" />\n", ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy); bx = hex->x + (0.86 * radius);
hex = hex->next; cx = hex->x + (0.86 * radius);
} dx = hex->x;
ex = hex->x - (0.86 * radius);
circle = symbol->vector->circles; fx = hex->x - (0.86 * radius);
while (circle) { fprintf(fsvg, " <path d=\"M %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f Z\" />\n", ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy);
if (circle->colour) { hex = hex->next;
fprintf(fsvg, " <circle cx=\"%.2f\" cy=\"%.2f\" r=\"%.2f\" fill=\"#%s\" />\n", circle->x, circle->y, circle->diameter / 2.0, symbol->bgcolour); }
} else {
fprintf(fsvg, " <circle cx=\"%.2f\" cy=\"%.2f\" r=\"%.2f\" fill=\"#%s\" />\n", circle->x, circle->y, circle->diameter / 2.0, symbol->fgcolour); circle = symbol->vector->circles;
} while (circle) {
circle = circle->next; if (circle->colour) {
} fprintf(fsvg, " <circle cx=\"%.2f\" cy=\"%.2f\" r=\"%.2f\" fill=\"#%s\" />\n", circle->x, circle->y, circle->diameter / 2.0, symbol->bgcolour);
} else {
string = symbol->vector->strings; fprintf(fsvg, " <circle cx=\"%.2f\" cy=\"%.2f\" r=\"%.2f\" fill=\"#%s\" />\n", circle->x, circle->y, circle->diameter / 2.0, symbol->fgcolour);
while (string) { }
fprintf(fsvg, " <text x=\"%.2f\" y=\"%.2f\" text-anchor=\"middle\"\n", string->x, string->y); circle = circle->next;
fprintf(fsvg, " font-family=\"Helvetica\" font-size=\"%.1f\" fill=\"#%s\" >\n", string->fsize, symbol->fgcolour); }
fprintf(fsvg, " %s\n", string->text);
fprintf(fsvg, " </text>\n"); string = symbol->vector->strings;
string = string->next; while (string) {
} fprintf(fsvg, " <text x=\"%.2f\" y=\"%.2f\" text-anchor=\"middle\"\n", string->x, string->y);
fprintf(fsvg, " font-family=\"Helvetica\" font-size=\"%.1f\" fill=\"#%s\" >\n", string->fsize, symbol->fgcolour);
fprintf(fsvg, " </g>\n"); fprintf(fsvg, " %s\n", string->text);
fprintf(fsvg, "</svg>\n"); fprintf(fsvg, " </text>\n");
string = string->next;
if (symbol->output_options & BARCODE_STDOUT) { }
fflush(fsvg);
} else { fprintf(fsvg, " </g>\n");
fclose(fsvg); fprintf(fsvg, "</svg>\n");
}
if (symbol->output_options & BARCODE_STDOUT) {
if (locale) fflush(fsvg);
setlocale(LC_ALL, locale); } else {
fclose(fsvg);
return error_number; }
}
if (locale)
setlocale(LC_ALL, locale);
return error_number;
}