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path: root/Source/Core/DolphinQt/Config/GamecubeControllersWidget.cpp
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// Copyright 2021 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#include "DolphinQt/Config/GamecubeControllersWidget.h"

#include <QComboBox>
#include <QGridLayout>
#include <QGroupBox>
#include <QLabel>
#include <QPushButton>
#include <QVBoxLayout>

#include <optional>
#include <utility>
#include <vector>

#include "Core/ConfigManager.h"
#include "Core/Core.h"
#include "Core/HW/SI/SI.h"
#include "Core/HW/SI/SI_Device.h"
#include "Core/NetPlayProto.h"
#include "Core/System.h"

#include "DolphinQt/Config/Mapping/GCPadWiiUConfigDialog.h"
#include "DolphinQt/Config/Mapping/MappingWindow.h"
#include "DolphinQt/QtUtils/NonDefaultQPushButton.h"
#include "DolphinQt/QtUtils/SignalBlocking.h"
#include "DolphinQt/Settings.h"

#include "InputCommon/GCAdapter.h"

using SIDeviceName = std::pair<SerialInterface::SIDevices, const char*>;
static constexpr std::array s_gc_types = {
    SIDeviceName{SerialInterface::SIDEVICE_NONE, _trans("None")},
    SIDeviceName{SerialInterface::SIDEVICE_GC_CONTROLLER, _trans("Standard Controller")},
    SIDeviceName{SerialInterface::SIDEVICE_WIIU_ADAPTER,
                 _trans("GameCube Controller Adapter (USB)")},
    SIDeviceName{SerialInterface::SIDEVICE_GC_STEERING, _trans("Steering Wheel")},
    SIDeviceName{SerialInterface::SIDEVICE_DANCEMAT, _trans("Dance Mat")},
    SIDeviceName{SerialInterface::SIDEVICE_GC_TARUKONGA, _trans("DK Bongos")},
#ifdef HAS_LIBMGBA
    SIDeviceName{SerialInterface::SIDEVICE_GC_GBA_EMULATED, _trans("GBA (Integrated)")},
#endif
    SIDeviceName{SerialInterface::SIDEVICE_GC_GBA, _trans("GBA (TCP)")},
    SIDeviceName{SerialInterface::SIDEVICE_GC_KEYBOARD, _trans("Keyboard Controller")},
};

static std::optional<int> ToGCMenuIndex(const SerialInterface::SIDevices sidevice)
{
  for (size_t i = 0; i < s_gc_types.size(); ++i)
  {
    if (s_gc_types[i].first == sidevice)
      return static_cast<int>(i);
  }
  return {};
}

static SerialInterface::SIDevices FromGCMenuIndex(const int menudevice)
{
  return s_gc_types[menudevice].first;
}

GamecubeControllersWidget::GamecubeControllersWidget(QWidget* parent) : QWidget(parent)
{
  CreateLayout();
  ConnectWidgets();

  connect(&Settings::Instance(), &Settings::ConfigChanged, this,
          [this] { LoadSettings(Core::GetState(Core::System::GetInstance())); });
  connect(&Settings::Instance(), &Settings::EmulationStateChanged, this,
          [this](Core::State state) { LoadSettings(state); });
  LoadSettings(Core::GetState(Core::System::GetInstance()));
}

void GamecubeControllersWidget::CreateLayout()
{
  m_gc_box = new QGroupBox(tr("GameCube Controllers"));
  m_gc_layout = new QGridLayout();
  m_gc_layout->setVerticalSpacing(7);
  m_gc_layout->setColumnStretch(1, 1);

  for (size_t i = 0; i < m_gc_groups.size(); i++)
  {
    auto* gc_label = new QLabel(tr("Port %1").arg(i + 1));
    auto* gc_box = m_gc_controller_boxes[i] = new QComboBox();
    auto* gc_button = m_gc_buttons[i] = new NonDefaultQPushButton(tr("Configure"));

    for (const auto& item : s_gc_types)
    {
      gc_box->addItem(tr(item.second));
    }

    int controller_row = m_gc_layout->rowCount();
    m_gc_layout->addWidget(gc_label, controller_row, 0);
    m_gc_layout->addWidget(gc_box, controller_row, 1);
    m_gc_layout->addWidget(gc_button, controller_row, 2);
  }
  m_gc_box->setLayout(m_gc_layout);

  auto* layout = new QVBoxLayout;
  layout->setContentsMargins(0, 0, 0, 0);
  layout->setAlignment(Qt::AlignTop);
  layout->addWidget(m_gc_box);
  setLayout(layout);
}

void GamecubeControllersWidget::ConnectWidgets()
{
  for (size_t i = 0; i < m_gc_controller_boxes.size(); ++i)
  {
    connect(m_gc_controller_boxes[i], &QComboBox::currentIndexChanged, this, [this, i] {
      OnGCTypeChanged(i);
      SaveSettings();
    });
    connect(m_gc_buttons[i], &QPushButton::clicked, this, [this, i] { OnGCPadConfigure(i); });
  }
}

void GamecubeControllersWidget::OnGCTypeChanged(size_t index)
{
  const SerialInterface::SIDevices si_device =
      FromGCMenuIndex(m_gc_controller_boxes[index]->currentIndex());
  m_gc_buttons[index]->setEnabled(si_device != SerialInterface::SIDEVICE_NONE &&
                                  si_device != SerialInterface::SIDEVICE_GC_GBA);
}

void GamecubeControllersWidget::OnGCPadConfigure(size_t index)
{
  MappingWindow::Type type;

  switch (FromGCMenuIndex(m_gc_controller_boxes[index]->currentIndex()))
  {
  case SerialInterface::SIDEVICE_NONE:
  case SerialInterface::SIDEVICE_GC_GBA:
    return;
  case SerialInterface::SIDEVICE_GC_CONTROLLER:
    type = MappingWindow::Type::MAPPING_GCPAD;
    break;
  case SerialInterface::SIDEVICE_WIIU_ADAPTER:
  {
    GCPadWiiUConfigDialog dialog(static_cast<int>(index), this);
    dialog.exec();
    return;
  }
  case SerialInterface::SIDEVICE_GC_STEERING:
    type = MappingWindow::Type::MAPPING_GC_STEERINGWHEEL;
    break;
  case SerialInterface::SIDEVICE_DANCEMAT:
    type = MappingWindow::Type::MAPPING_GC_DANCEMAT;
    break;
  case SerialInterface::SIDEVICE_GC_TARUKONGA:
    type = MappingWindow::Type::MAPPING_GC_BONGOS;
    break;
  case SerialInterface::SIDEVICE_GC_GBA_EMULATED:
    type = MappingWindow::Type::MAPPING_GC_GBA;
    break;
  case SerialInterface::SIDEVICE_GC_KEYBOARD:
    type = MappingWindow::Type::MAPPING_GC_KEYBOARD;
    break;
  default:
    return;
  }

  MappingWindow* window = new MappingWindow(this, type, static_cast<int>(index));
  window->setAttribute(Qt::WA_DeleteOnClose, true);
  window->setWindowModality(Qt::WindowModality::WindowModal);
  window->show();
}

void GamecubeControllersWidget::LoadSettings(Core::State state)
{
  const bool running = state != Core::State::Uninitialized;
  for (size_t i = 0; i < m_gc_groups.size(); i++)
  {
    const SerialInterface::SIDevices si_device =
        Config::Get(Config::GetInfoForSIDevice(static_cast<int>(i)));
    const std::optional<int> gc_index = ToGCMenuIndex(si_device);
    if (gc_index)
    {
      SignalBlocking(m_gc_controller_boxes[i])->setCurrentIndex(*gc_index);
      m_gc_controller_boxes[i]->setEnabled(NetPlay::IsNetPlayRunning() ? !running : true);
      OnGCTypeChanged(i);
    }
  }
}

void GamecubeControllersWidget::SaveSettings()
{
  {
    Config::ConfigChangeCallbackGuard config_guard;

    auto& system = Core::System::GetInstance();
    for (size_t i = 0; i < m_gc_groups.size(); ++i)
    {
      const SerialInterface::SIDevices si_device =
          FromGCMenuIndex(m_gc_controller_boxes[i]->currentIndex());
      Config::SetBaseOrCurrent(Config::GetInfoForSIDevice(static_cast<int>(i)), si_device);

      if (Core::IsRunning(system))
      {
        system.GetSerialInterface().ChangeDevice(si_device, static_cast<s32>(i));
      }
    }
  }
  if (GCAdapter::UseAdapter())
    GCAdapter::StartScanThread();
  else
    GCAdapter::StopScanThread();

  SConfig::GetInstance().SaveSettings();
}