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Correct scaling in qrcode_rows()

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nick black 2020-05-22 05:50:41 -04:00
parent e682b4fae8
commit 4e9f46e063
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2 changed files with 4 additions and 2 deletions
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4
src/demo/qrcode.c
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@ -7,7 +7,7 @@
#define PER_QR_VERSION 4
static inline int
qrcode_rows(int version){
return QR_BASE_SIZE + (version * PER_QR_VERSION / 2);
return (QR_BASE_SIZE + (version * PER_QR_VERSION)) / 2;
}
static inline int
@ -38,6 +38,8 @@ int qrcode_demo(struct notcurses* nc){
int qlen = ncplane_qrcode(n, 0, data, len);
// can fail due to being too large for the terminal
if(qlen > 0){
ncplane_move_yx(n, dimy / 2 - qrcode_rows(qlen) / 2,
dimx / 2 - qrcode_cols(qlen) / 2);
if(ncplane_cursor_move_yx(n, 0, 0)){
ncplane_destroy(n);
return -1;

2
src/lib/fill.c
View File

@ -600,7 +600,7 @@ int ncplane_rotate_ccw(ncplane* n){
static inline int
qrcode_rows(int version){
return QR_BASE_SIZE + (version * PER_QR_VERSION / 2);
return (QR_BASE_SIZE + (version * PER_QR_VERSION)) / 2;
}
static inline int