AbstractItemModelMenuAdapter.h++

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#ifndef __libquark_gui_AbstractItemModelMenuAdapter_hxx
#define __libquark_gui_AbstractItemModelMenuAdapter_hxx

class QAbstractItemModel;
class QAction;
class QMenu;
class QModelIndex;

#include <QFlags>
#include <QList>
#include <QObject>
#include <QActionGroup>

#include <quark/Quark.h++>

namespace quark {
namespace gui {

class LIBQUARK_API AbstractItemModelMenuAdapter : public QObject
{
  Q_OBJECT;

  public:

  enum Option
  {
    InsertAtTop = 1 << 0,
    Checkable = 1 << 1,
    Exclusive = 1 << 2
  };

  Q_DECLARE_FLAGS(Options, Option);

  AbstractItemModelMenuAdapter(const QAbstractItemModel *model, QMenu *menu,
                               Options options = 0);

  virtual ~AbstractItemModelMenuAdapter();

  void sync();

  protected:

  virtual QString getMenuLabelForRow(int row) const = 0;
  virtual void handleRowSelection(int row) = 0;
  void setSelectedRow(int row);
  private slots:

  void removeItems(const QModelIndex &parent, int start, int end);
  void insertItems(const QModelIndex &parent, int start, int end);
  void moveItems(const QModelIndex &sourceParent, int sourceStart,
                 int sourceEnd, const QModelIndex &destParent, int destRow);
  void updateItems(const QModelIndex &topLeft, const QModelIndex &bottomRight);
  void actionTriggered();

  private:

  const QAbstractItemModel *_model;
  QMenu *_menu;
  QList<QAction *> _actions;
  QActionGroup *_actionGroup;
  Options _options;
  int _fixedActions;
  int _menuOffset;
  QAction *_lastAction;
};

} // namespace gui
} // namespace quark

Q_DECLARE_OPERATORS_FOR_FLAGS(
    quark::gui::AbstractItemModelMenuAdapter::Options);

#endif // __libquark_gui_AbstractItemModelMenuAdapter_hxx