LookFor/file_system_model.hpp at master · ExMix/LookFor · GitHub

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#pragma once

#include <QAbstractItemModel>

class QFileInfo;
class DirScaner;

class FileSystemModel : public QAbstractItemModel
{
  using TBase = QAbstractItemModel;
public:
  FileSystemModel(QObject * parent = 0);
  ~FileSystemModel();

  void setRoot(QString const & rootPath);
  bool isDir(QModelIndex const & index) const;

  int rowCount(QModelIndex const & parent) const override;
  int columnCount(QModelIndex const & parent) const override;

  QModelIndex index(int row, int column, QModelIndex const & parent) const override;
  QModelIndex parent(QModelIndex const & child) const override;
  QVariant data(QModelIndex const & index, int role) const override;
  bool setData(QModelIndex const & index, QVariant const & value, int role) override;
  QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
  Qt::ItemFlags flags(QModelIndex const & index) const override;

  bool canFetchMore(QModelIndex const & parent) const;
  void fetchMore(QModelIndex const & parent);

  Q_SIGNAL void subtreeSelected(QModelIndex const & index);

private:
  void emitDataChanged(QModelIndex const & from, QModelIndex const & to, int role);

  Q_SLOT void fileFounded(QFileInfo const & info, DirScaner * scaner);
  Q_SLOT void scanFinished(DirScaner * scaner);

  void cleanModel();

private:
  struct Impl;
  std::unique_ptr<Impl> m_impl;
};