Add qrcode to wifi panel

README.md

@@ -83,5 +83,7 @@ for you. You can add your SSID and password by editing the `WIFI_SSID` and
 image.
 
 The qr code generation relies on the program `qrencode`. It can be installed on
-any debian system using `sudo apt install qrencode`
+any debian system using `sudo apt install qrencode`. By default the image has a
+transparent background. If you would like a different background, you will need
+to adjust wifi.cpp to adjust where it is located to your preference.
 

scripts/wifi.sh

@@ -6,7 +6,7 @@ if [ $# -ne 2 ]; then
     echo "The result will be in wifi.png"
 fi
 
-qrencode -s 6 -o "./img/wifi.png" "WIFI:T:WPA;S:$1;P:$2;;"
+qrencode -s 6 --background=FFFFFF00 -o "./img/wifi.png" "WIFI:T:WPA;S:$1;P:$2;;"
 
 echo "Your wifi qrcode is wifi.png !"
 echo "Your wifi qrcode is now in the local img folder as wifi.png"

src/config.cpp

@@ -24,6 +24,7 @@ const char* IMAGE_LOCATIONS[] = {
     "bmp_24.png",
     "sky.png",
     "wifi_background.jpg",
+    "wifi.png",
 };
 size_t IMAGE_LOCATIONS_LENGTH = sizeof(IMAGE_LOCATIONS)/sizeof(IMAGE_LOCATIONS[0]);
 

src/panel/wifi.cpp

@@ -69,8 +69,29 @@ void wifi::update_texture(){
     SDL_RenderCopy(board::getRenderer(),
             board::getImage("wifi_background.jpg"), NULL, NULL);
 
+    //place the title
+    tgt.x = 50;
+    tgt.y = 50;
+    TTF_SizeText(board::getFont({ "Roboto_Mono/RobotoMono-Medium.ttf", 50 }),
+            "Wireless",
+            &tgt.w, &tgt.h);
+    //Note about the string "Wireless"
+    //Because this is only called once, it makes more sense to not have
+    //"Wireless" as a static string, and instead generate it dynamically once,
+    //copy it into this _texture, and then delete if once it goes out of the
+    //LRU. This way, we dont waste memory holding a string we only copy once
+    SDL_RenderCopy(board::getRenderer(),
+            board::getString("Wireless",
+                { "Roboto_Mono/RobotoMono-Medium.ttf", 50 }), NULL, &tgt);
 
-
+    //show the QRCode
+    tgt.x = -25;
+    tgt.y = tgt.h;
+    tgt.w = (SCREEN_WIDTH / 2) ;
+    std::cerr << "TGT.W : " << tgt.w << "\n";
+    tgt.h = tgt.w;
+    SDL_RenderCopy(board::getRenderer(),
+            board::getImage("wifi.png"), NULL, &tgt);
 
 
     SDL_SetRenderTarget(board::getRenderer(), NULL);