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Adjust size of Maxicode symbols when output as EMF

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Size and position of elements in EMF files is stored as an integer, therefore Maxicode does not render properly
Increasing scale for these images ensures proper rendering
Fixes #185 reported by Alex Roy
This commit is contained in:
Robin Stuart 2020-04-01 20:01:02 +01:00
parent b4182cbc19
commit 94fe73ebfd
1 changed files with 8 additions and 3 deletions
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11
backend/vector.c
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@ -1,7 +1,7 @@
/* vector.c - Creates vector image objects
libzint - the open source barcode library
Copyright (C) 2018 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2018 - 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
@ -193,13 +193,18 @@ INTERNAL void vector_free(struct zint_symbol *symbol) {
}
}
static void vector_scale(struct zint_symbol *symbol) {
static void vector_scale(struct zint_symbol *symbol, int file_type) {
struct zint_vector_rect *rect;
struct zint_vector_hexagon *hex;
struct zint_vector_circle *circle;
struct zint_vector_string *string;
float scale = symbol->scale * 2.0f;
if ((file_type == OUT_EMF_FILE) && (symbol->symbology == BARCODE_MAXICODE)) {
// Increase size to overcome limitations in EMF file format
scale *= 20;
}
symbol->vector->width *= scale;
symbol->vector->height *= scale;
@ -820,7 +825,7 @@ INTERNAL int plot_vector(struct zint_symbol *symbol, int rotate_angle, int file_
vector_reduce_rectangles(symbol);
vector_scale(symbol);
vector_scale(symbol, file_type);
switch (file_type) {
case OUT_EPS_FILE: