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Slight improvement to qrcode printing
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39c4b7ecdd
commit
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@ -34,20 +34,6 @@
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#define CHAR_2 "\342\226\204"
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#define CHAR_3 "\342\226\200"
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static void add_border(FILE *fp, size_t width)
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{
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size_t i, j;
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for (i = 0; i < BORDER_LEN; i += 2) {
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fprintf(fp, BORDER_CHAR);
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for (j = 0; j < BORDER_LEN + width + BORDER_LEN; ++j)
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fprintf(fp, "%s", CHAR_1);
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fprintf(fp, "%s\n", BORDER_CHAR);
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}
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}
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/* Converts a tox ID string into a QRcode and prints it to the given file stream.
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*
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* Returns 0 on success.
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@ -64,19 +50,20 @@ int ID_to_QRcode(const char *tox_id, FILE *fp)
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return -1;
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size_t width = qr_obj->width;
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add_border(fp, width);
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size_t i, j;
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for (i = 0; i < width + BORDER_LEN * 2; ++i)
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fprintf(fp, "%s", CHAR_1);
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fprintf(fp, "\n");
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for (i = 0; i < width; i += 2) {
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const unsigned char *row_1 = qr_obj->data + width * i;
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const unsigned char *row_2 = row_1 + width;
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fprintf(fp, BORDER_CHAR);
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for (j = 0; j < BORDER_LEN; ++j)
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fprintf(fp, "%s", CHAR_1);
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const unsigned char *row_1 = qr_obj->data + width * i;
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const unsigned char *row_2 = row_1 + width;
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for (j = 0; j < width; ++j) {
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bool x = row_1[j] & 1;
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bool y = (i + 1) < width ? (row_2[j] & 1) : false;
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@ -94,7 +81,7 @@ int ID_to_QRcode(const char *tox_id, FILE *fp)
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for (j = 0; j < BORDER_LEN; ++j)
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fprintf(fp, "%s", CHAR_1);
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fprintf(fp, "%s\n", BORDER_CHAR);
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fprintf(fp, "\n");
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}
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QRcode_free(qr_obj);
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