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Reverse QR code colors and add padding

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All QR scanners should be able to recognize this, as it is now the
correct color with some padding to prevent blending.

Signed-off-by: swirl <swurl@swurl.xyz>
This commit is contained in:
swirl 2022-05-27 15:45:38 -04:00 committed by Michael Vetter
parent 9a9a97868d
commit d64cb38240
2 changed files with 19 additions and 8 deletions
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1
src/command/cmd_funcs.c
View File

@ -9778,4 +9778,3 @@ cmd_mood(ProfWin* window, const char* const command, gchar** args)
}
return TRUE;
}

26
src/ui/console.c
View File

@ -871,24 +871,37 @@ cons_show_omemo_qrcode(const char* const text)
{
#ifdef HAVE_QRENCODE
static const size_t ZOOM_SIZE = 10;
QRcode *qrcode = QRcode_encodeString(text, 0, QR_ECLEVEL_L, QR_MODE_8, 1);
QRcode* qrcode = QRcode_encodeString(text, 0, QR_ECLEVEL_L, QR_MODE_8, 1);
int width = (qrcode->width * ZOOM_SIZE);
unsigned char *data = qrcode->data;
unsigned char* data = qrcode->data;
ProfWin* console = wins_get_console();
char buf[(width * 4) + 1];
memset(buf, 0, sizeof buf);
for (size_t y = 0; y < width; y+=ZOOM_SIZE) {
for (size_t x = 0; x < width; x+=ZOOM_SIZE) {
strcat(buf, (*data & 1) ? "\u2588\u2588" : "\u2800\u2800");
char tmp[(width * 4) + 5];
memset(tmp, 0, sizeof tmp);
for (int i = 0; i < width + 2 * ZOOM_SIZE; i += ZOOM_SIZE) {
strcat(tmp, "\u2588\u2588");
}
win_println(console, THEME_DEFAULT, "", tmp);
for (size_t y = 0; y < width; y += ZOOM_SIZE) {
for (size_t x = 0; x < width; x += ZOOM_SIZE) {
strcat(buf, !(*data & 1) ? "\u2588\u2588" : "\u2800\u2800");
data++;
}
win_println(console, THEME_DEFAULT, "", "%s", buf);
// The extra squares are for padding, so that the QR code doesn't
// "blend in" with the rest of the terminal window.
win_println(console, THEME_DEFAULT, "", "\u2588\u2588%s\u2588\u2588", buf);
memset(buf, 0, sizeof buf);
}
win_println(console, THEME_DEFAULT, "", "%s", tmp);
QRcode_free(qrcode);
#endif
@ -2926,4 +2939,3 @@ cons_remove_alert(ProfWin* window)
g_list_free_full(item, g_free);
free(win_name);
}