wiowntone/ui.ino

#define LGFX_AUTODETECT;
#define LGFX_USE_V1
#include <LovyanGFX.hpp>

#define UI_WIDTH (320)
#define UI_HEIGHT (240)

#define STATUS_BAR_HEIGHT (20)

static LGFX lcd;
static AppState lastAppState;

void uiDebug(AppState *state) {
  
}

void uiLoop(AppState *state) {
  lcd.startWrite();

  lcd.setTextColor(0x000000U, 0x00FF00);
  
  bool statusBarDirty = false;
  statusBarDirty = state->wifiOnline != lastAppState.wifiOnline;
  statusBarDirty = statusBarDirty || (state->volume != lastAppState.volume);
  if (statusBarDirty) {
    lcd.fillRect(0, 0, UI_WIDTH, STATUS_BAR_HEIGHT, 0x00FF00);
    if (state->wifiOnline) {
      lcd.drawString(state->wifiIP.toString(), 10, 10);
      lcd.drawString(String(state->volume), UI_WIDTH - 20, 10);
    }
    else {
      lcd.drawString("connecting...", 10, 10);
    }
  }

  lastAppState = *state;
      
  lcd.endWrite();
}

void uiSetup(AppState *state) {
  lcd.init();
  lcd.setColorDepth(16);
  lcd.fillScreen(0xFF0000);
  lcd.setBrightness(128);

  lastAppState = AppStateMake();
}