Method drawList

src/components/themes/BaseTheme.cpp:258–352

}

void BaseTheme::drawList(const GfxRenderer& renderer, Rect rect, int itemCount, int selectedIndex,
                         const std::function<std::string(int index)>& rowTitle,
                         const std::function<std::string(int index)>& rowSubtitle,
                         const std::function<UIIcon(int index)>& rowIcon,
                         const std::function<std::string(int index)>& rowValue, bool highlightValue,
                         const std::function<bool(int index)>& rowDimmed) const {
  int rowHeight =
      (rowSubtitle != nullptr) ? BaseMetrics::values.listWithSubtitleRowHeight : BaseMetrics::values.listRowHeight;
  int pageItems = rect.height / rowHeight;

  const int totalPages = (itemCount + pageItems - 1) / pageItems;
  if (totalPages > 1) {
    constexpr int indicatorWidth = 20;
    constexpr int arrowSize = 6;
    constexpr int margin = 15;  // Offset from right edge

    const int centerX = rect.x + rect.width - indicatorWidth / 2 - margin;
    const int indicatorTop = rect.y;  // Offset to avoid overlapping side button hints
    const int indicatorBottom = rect.y + rect.height - arrowSize;

    // Draw up arrow at top (^) - narrow point at top, wide base at bottom
    for (int i = 0; i < arrowSize; ++i) {
      const int lineWidth = 1 + i * 2;
      const int startX = centerX - i;
      renderer.drawLine(startX, indicatorTop + i, startX + lineWidth - 1, indicatorTop + i);
    }

    // Draw down arrow at bottom (v) - wide base at top, narrow point at bottom
    for (int i = 0; i < arrowSize; ++i) {
      const int lineWidth = 1 + (arrowSize - 1 - i) * 2;
      const int startX = centerX - (arrowSize - 1 - i);
      renderer.drawLine(startX, indicatorBottom - arrowSize + 1 + i, startX + lineWidth - 1,
                        indicatorBottom - arrowSize + 1 + i);
    }
  }

  // Draw selection
  int contentWidth = rect.width - 5;
  if (selectedIndex >= 0) {
    renderer.fillRect(rect.x, rect.y + selectedIndex % pageItems * rowHeight - 2, rect.width, rowHeight);
  }
  constexpr int minValueGap = 10;

  // Draw all items
  const auto pageStartIndex = selectedIndex / pageItems * pageItems;
  for (int i = pageStartIndex; i < itemCount && i < pageStartIndex + pageItems; i++) {
    const int itemY = rect.y + (i % pageItems) * rowHeight;

    int rowTextWidth = contentWidth - BaseMetrics::values.contentSidePadding * 2;
    std::string valueText;
    if (rowValue != nullptr) {
      valueText = rowValue(i);
      if (!valueText.empty()) {
        int maxValW = std::max(0, rowTextWidth - 40 - minValueGap);
        valueText = renderer.truncatedText(UI_10_FONT_ID, valueText.c_str(), maxValW);
        int valueWidth = renderer.getTextWidth(UI_10_FONT_ID, valueText.c_str()) + minValueGap;
        rowTextWidth -= valueWidth;
      }