Fix for passkey screen scramble

When a passkey is displayed, screen on or off, and another
passkey is displayed the screen may become scrambled. Fix
the issue by insuring the whole screen is drawn every time.

3 files changed, 17 insertions, 9 deletions

diff --git a/src/displayapp/DisplayApp.cpp b/src/displayapp/DisplayApp.cpp
index 08a7646..0a675c8 100644
--- a/src/displayapp/DisplayApp.cpp
+++ b/src/displayapp/DisplayApp.cpp
@@ -215,6 +215,9 @@ void DisplayApp::Refresh() {
         } else {
           LoadApp(Apps::Alarm, DisplayApp::FullRefreshDirections::None);
         }
+      case Messages::ShowPairingKey:
+        LoadApp(Apps::PassKey, DisplayApp::FullRefreshDirections::Up);
+        break;
       case Messages::TouchEvent: {
         if (state != States::Running) {
           break;
@@ -289,9 +292,6 @@ void DisplayApp::Refresh() {
         // Added to remove warning
         // What should happen here?
         break;
-      case Messages::ShowPairingKey:
-        LoadApp(Apps::PassKey, DisplayApp::FullRefreshDirections::Up);
-        break;
     }
   }
 
diff --git a/src/displayapp/screens/PassKey.cpp b/src/displayapp/screens/PassKey.cpp
index 66bf0c2..9e43a54 100644
--- a/src/displayapp/screens/PassKey.cpp
+++ b/src/displayapp/screens/PassKey.cpp
@@ -4,11 +4,18 @@
 using namespace Pinetime::Applications::Screens;
 
 PassKey::PassKey(Pinetime::Applications::DisplayApp* app, uint32_t key) : Screen(app) {
-  lpasskey = lv_label_create(lv_scr_act(), nullptr);
-  lv_obj_set_style_local_text_color(lpasskey, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0xFFFF00));
-  lv_obj_set_style_local_text_font(lpasskey, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &jetbrains_mono_42);
-  lv_label_set_text_fmt(lpasskey, "%06u", key);
-  lv_obj_align(lpasskey, nullptr, LV_ALIGN_CENTER, 0, -20);
+  passkeyLabel = lv_label_create(lv_scr_act(), nullptr);
+  lv_obj_set_style_local_text_color(passkeyLabel, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0xFFFF00));
+  lv_obj_set_style_local_text_font(passkeyLabel, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &jetbrains_mono_42);
+  lv_label_set_text_fmt(passkeyLabel, "%06u", key);
+  lv_obj_align(passkeyLabel, nullptr, LV_ALIGN_CENTER, 0, -20);
+
+  backgroundLabel = lv_label_create(lv_scr_act(), nullptr);
+  lv_obj_set_click(backgroundLabel, true);
+  lv_label_set_long_mode(backgroundLabel, LV_LABEL_LONG_CROP);
+  lv_obj_set_size(backgroundLabel, 240, 240);
+  lv_obj_set_pos(backgroundLabel, 0, 0);
+  lv_label_set_text(backgroundLabel, "");
 }
 
 PassKey::~PassKey() {
diff --git a/src/displayapp/screens/PassKey.h b/src/displayapp/screens/PassKey.h
index 34e0d59..16e72a3 100644
--- a/src/displayapp/screens/PassKey.h
+++ b/src/displayapp/screens/PassKey.h
@@ -13,7 +13,8 @@ namespace Pinetime {
         ~PassKey() override;
 
       private:
-        lv_obj_t* lpasskey;
+        lv_obj_t* passkeyLabel;
+        lv_obj_t* backgroundLabel;
       };
     }
   }