implement working OMEMO QR code

TODO: We need to find a way to switch the colors of the QR code, so that
more QR readers can detect it, without "blending" the edges of the QR
code with the surrounding terminal window.

Signed-off-by: swirl <swurl@swurl.xyz>

1 files changed, 6 insertions, 7 deletions

diff --git a/src/ui/console.c b/src/ui/console.c
index ae1f796d..e0b0fa4d 100644
--- a/src/ui/console.c
+++ b/src/ui/console.c
@@ -878,18 +878,16 @@ cons_show_omemo_qrcode(const char* const text)
 
     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) {
-        //size_t y_index = y * width;
         for (size_t x = 0; x < width; x+=ZOOM_SIZE) {
-            if (x==0) {
-                win_print(console, THEME_DEFAULT, "", "%s", (*data & 1) ? "A" : "B");
-            } else {
-                win_append(console, THEME_DEFAULT, "", "%s", (*data & 1) ? "A" : "B");
-            }
+            strcat(buf, (*data & 1) ? "\u2588\u2588" : "\u2800\u2800");
 
             data++;
         }
-        win_println(console, THEME_DEFAULT, "", "");
+        win_println(console, THEME_DEFAULT, "", "%s", buf);
+        memset(buf, 0, sizeof buf);
     }
 
     QRcode_free(qrcode);
@@ -2928,3 +2926,4 @@ cons_remove_alert(ProfWin* window)
     g_list_free_full(item, g_free);
     free(win_name);
 }
+