PresetTreeView.hpp

#pragma once
#include <Process/Preset.hpp>
 
#include <ossia/detail/hash_map.hpp>
 
#include <QSet>
#include <QMenu>
#include <QTreeView>
 
#include <memory>
 
#include <score_plugin_library_export.h>
 
#include <verdigris>
 
namespace Library
{
class PresetItemModel;
 
class SCORE_PLUGIN_LIBRARY_EXPORT PresetTreeView final : public QTreeView
{
  W_OBJECT(PresetTreeView)
public:
  explicit PresetTreeView(QWidget* parent = nullptr);
  ~PresetTreeView();
 
  void setPresetModel(PresetItemModel* model);
  PresetItemModel* presetModel() const noexcept { return m_model; }
 
  void selected(std::optional<Process::Preset> p)
      E_SIGNAL(SCORE_PLUGIN_LIBRARY_EXPORT, selected, p)
  void doubleClicked(Process::Preset p)
      E_SIGNAL(SCORE_PLUGIN_LIBRARY_EXPORT, doubleClicked, p)
  void loadRequested(Process::Preset p)
      E_SIGNAL(SCORE_PLUGIN_LIBRARY_EXPORT, loadRequested, p)
  void cancelRequested() E_SIGNAL(SCORE_PLUGIN_LIBRARY_EXPORT, cancelRequested)
 
  void showCurrentPreset();
  void newCategory(const QStringList& in);
  std::unique_ptr<QMenu> contextMenu(const QModelIndex& index);
 
protected:
  void mouseDoubleClickEvent(QMouseEvent* event) override;
  void paintEvent(QPaintEvent* e) override;
  void contextMenuEvent(QContextMenuEvent* event) override;
  void keyPressEvent(QKeyEvent* event) override;
  void currentChanged(const QModelIndex& current, const QModelIndex& previous) override;
  void focusInEvent(QFocusEvent* event) override;
 
private:
  QString expansionKey() const;
  void saveState();
  void restoreState();
  void scrollToCurrentLater();
 
  PresetItemModel* m_model{};
  ossia::hash_map<QString, QSet<QString>> m_expanded;
  QString m_currentPath, m_currentName, m_currentCategory;
  bool m_restoring{};
};
}