Method render

src/activities/settings/ButtonRemapActivity.cpp:97–150

}

void ButtonRemapActivity::render(RenderLock&&) {
  const auto labelForHardware = [&](uint8_t hardwareIndex) -> const char* {
    for (uint8_t i = 0; i < kRoleCount; i++) {
      if (tempMapping[i] == hardwareIndex) {
        return getRoleName(i);
      }
    }
    return "-";
  };

  const auto& metrics = UITheme::getInstance().getMetrics();
  const auto pageWidth = renderer.getScreenWidth();
  const auto pageHeight = renderer.getScreenHeight();

  renderer.clearScreen();

  GUI.drawHeader(renderer, Rect{0, metrics.topPadding, pageWidth, metrics.headerHeight}, tr(STR_REMAP_FRONT_BUTTONS));
  GUI.drawSubHeader(renderer, Rect{0, metrics.topPadding + metrics.headerHeight, pageWidth, metrics.tabBarHeight},
                    tr(STR_REMAP_PROMPT));

  int topOffset = metrics.topPadding + metrics.headerHeight + metrics.tabBarHeight + metrics.verticalSpacing;
  int contentHeight = pageHeight - topOffset - metrics.buttonHintsHeight - metrics.verticalSpacing;
  GUI.drawList(
      renderer, Rect{0, topOffset, pageWidth, contentHeight}, kRoleCount, currentStep,
      [&](int index) { return getRoleName(static_cast<uint8_t>(index)); }, nullptr, nullptr,
      [&](int index) {
        uint8_t assignedButton = tempMapping[static_cast<uint8_t>(index)];
        return (assignedButton == kUnassigned) ? tr(STR_UNASSIGNED) : getHardwareName(assignedButton);
      },
      true);

  // Temporary warning banner for duplicates.
  if (!errorMessage.empty()) {
    GUI.drawHelpText(renderer,
                     Rect{0, pageHeight - metrics.buttonHintsHeight - metrics.contentSidePadding - 15, pageWidth, 20},
                     errorMessage.c_str());
  }

  // Provide side button actions at the bottom of the screen (split across two lines).
  GUI.drawHelpText(renderer,
                   Rect{0, topOffset + 4 * metrics.listRowHeight + 4 * metrics.verticalSpacing, pageWidth, 20},
                   tr(STR_REMAP_RESET_HINT));
  GUI.drawHelpText(renderer,
                   Rect{0, topOffset + 4 * metrics.listRowHeight + 5 * metrics.verticalSpacing + 20, pageWidth, 20},
                   tr(STR_REMAP_CANCEL_HINT));

  // Live preview of logical labels under front buttons.
  // This mirrors the on-device front button order: Back, Confirm, Left, Right.
  GUI.drawButtonHints(renderer, labelForHardware(CrossPointSettings::FRONT_HW_BACK),
                      labelForHardware(CrossPointSettings::FRONT_HW_CONFIRM),
                      labelForHardware(CrossPointSettings::FRONT_HW_LEFT),
                      labelForHardware(CrossPointSettings::FRONT_HW_RIGHT));
  renderer.displayBuffer();
}

void ButtonRemapActivity::applyTempMapping() {
  // Commit temporary mapping into settings (logical role -> hardware).