v2.0: Full localization (6 languages), first-run language screen, aircraft detail overhaul, aircraft-model API fallback, and multiple bugfixes

src/first_run_language_screen.cpp

@@ -0,0 +1,63 @@
+#include "first_run_language_screen.h"
+#include "settings_store.h"
+#include "touch_input.h"
+#include "i18n.h"
+#include "config.h"
+
+namespace FirstRunLanguageScreen {
+
+namespace {
+    struct Rect {
+        int16_t x, y, w, h;
+        bool contains(int16_t px, int16_t py) const {
+            return px >= x && px < x + w && py >= y && py < y + h;
+        }
+    };
+
+    constexpr int16_t ROW_H = 36;
+    constexpr int16_t ROW_GAP = 6;
+    constexpr int16_t START_Y = 60;
+
+    Rect rowRect(uint8_t index) {
+        return {20, (int16_t)(START_Y + index * (ROW_H + ROW_GAP)),
+                (int16_t)(Config::SCREEN_WIDTH - 40), ROW_H};
+    }
+
+    void drawButton(TFT_eSPI& tft, const Rect& r, const String& label) {
+        tft.drawRoundRect(r.x, r.y, r.w, r.h, 4, TFT_GREEN);
+        tft.setTextDatum(MC_DATUM);
+        tft.setTextColor(TFT_GREEN, TFT_BLACK);
+        tft.drawString(label, r.x + r.w / 2, r.y + r.h / 2);
+        tft.setTextDatum(TL_DATUM);
+    }
+}
+
+void run(TFT_eSPI& tft) {
+    tft.fillScreen(TFT_BLACK);
+    tft.setTextColor(TFT_GREEN, TFT_BLACK);
+    tft.setTextDatum(MC_DATUM);
+    tft.setTextSize(2);
+    tft.drawString("Language / Sprache", Config::SCREEN_WIDTH / 2, 24);
+    tft.setTextSize(1);
+    tft.setTextDatum(TL_DATUM);
+
+    Rect langRects[I18n::LANG_COUNT];
+    for (uint8_t i = 0; i < I18n::LANG_COUNT; i++) {
+        langRects[i] = rowRect(i);
+        drawButton(tft, langRects[i], I18n::languageName(i));
+    }
+
+    while (true) {
+        TouchInput::Point tap;
+        if (!TouchInput::wasTapped(tap)) { delay(20); continue; }
+
+        for (uint8_t i = 0; i < I18n::LANG_COUNT; i++) {
+            if (langRects[i].contains(tap.x, tap.y)) {
+                SettingsStore::setLanguage(i);
+                return;
+            }
+        }
+    }
+}
+
+}