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

src/language_screen.cpp

@@ -0,0 +1,75 @@
+#include "language_screen.h"
+#include "settings_store.h"
+#include "touch_input.h"
+#include "i18n.h"
+#include "config.h"
+
+namespace LanguageScreen {
+
+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;
+        }
+    };
+
+    void drawButton(TFT_eSPI& tft, const Rect& r, const String& label, uint16_t bg = TFT_NAVY) {
+        tft.fillRoundRect(r.x, r.y, r.w, r.h, 4, bg);
+        tft.drawRoundRect(r.x, r.y, r.w, r.h, 4, TFT_DARKGREY);
+        tft.setTextDatum(MC_DATUM);
+        tft.setTextColor(TFT_WHITE, bg);
+        tft.drawString(label, r.x + r.w / 2, r.y + r.h / 2);
+        tft.setTextDatum(TL_DATUM);
+    }
+
+    constexpr int16_t ROW_H = 36;
+    constexpr int16_t ROW_GAP = 6;
+    constexpr int16_t START_Y = 30;
+
+    Rect rowRect(uint8_t index) {
+        return {10, (int16_t)(START_Y + index * (ROW_H + ROW_GAP)),
+                (int16_t)(Config::SCREEN_WIDTH - 20), ROW_H};
+    }
+}
+
+void run(TFT_eSPI& tft) {
+    bool done = false;
+    while (!done) {
+        tft.fillScreen(TFT_BLACK);
+        tft.setTextColor(TFT_WHITE, TFT_BLACK);
+        tft.setCursor(10, 6);
+        tft.println(I18n::t(StringId::LANGUAGE_TITLE));
+
+        uint8_t current = SettingsStore::language();
+        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),
+                       (i == current) ? TFT_DARKGREEN : TFT_NAVY);
+        }
+
+        Rect backBtn = rowRect(I18n::LANG_COUNT);
+        drawButton(tft, backBtn, I18n::t(StringId::BACK));
+
+        TouchInput::Point tap;
+        while (true) {
+            if (TouchInput::wasTapped(tap)) break;
+            delay(20);
+        }
+
+        bool handled = false;
+        for (uint8_t i = 0; i < I18n::LANG_COUNT && !handled; i++) {
+            if (langRects[i].contains(tap.x, tap.y)) {
+                SettingsStore::setLanguage(i);
+                handled = true;
+            }
+        }
+        if (!handled && backBtn.contains(tap.x, tap.y)) {
+            done = true;
+        }
+    }
+}
+
+}