File indexing completed on 2024-04-28 15:51:39

 /*
     SPDX-FileCopyrightText: 2007 Tobias Koenig <tokoe@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef ANNOTATIONPROXYMODEL_H
 #define ANNOTATIONPROXYMODEL_H
 
 #include <QPair>
 #include <QSortFilterProxyModel>
 
 /**
  * A proxy model, which filters out all pages except the
  * current one.
  */
 class PageFilterProxyModel : public QSortFilterProxyModel
 {
     Q_OBJECT
 
 public:
     /**
      * Creates a new page filter proxy model.
      *
      * @param parent The parent object.
      */
     explicit PageFilterProxyModel(QObject *parent = nullptr);
 
     /**
      * Reimplemented from QSortFilterProxy.
      */
     bool filterAcceptsRow(int, const QModelIndex &) const override;
 
 public Q_SLOTS:
     /**
      * Sets whether the proxy model shall filter
      * by current page.
      */
     void groupByCurrentPage(bool value);
 
     /**
      * Sets the current page.
      */
     void setCurrentPage(int page);
 
 private:
     bool mGroupByCurrentPage;
     int mCurrentPage;
 };
 
 /**
  * A proxy model which either groups the annotations by
  * pages or shows them all as list.
  */
 class PageGroupProxyModel : public QAbstractProxyModel
 {
     Q_OBJECT
 
 public:
     /**
      * Creates a new page group proxy model.
      *
      * @param parent The parent object.
      */
     explicit PageGroupProxyModel(QObject *parent = nullptr);
 
     int columnCount(const QModelIndex &parentIndex) const override;
     int rowCount(const QModelIndex &parentIndex) const override;
 
     QModelIndex index(int row, int column, const QModelIndex &parentIndex = QModelIndex()) const override;
     QModelIndex parent(const QModelIndex &idx) const override;
 
     QModelIndex mapFromSource(const QModelIndex &sourceIndex) const override;
     QModelIndex mapToSource(const QModelIndex &proxyIndex) const override;
 
     void setSourceModel(QAbstractItemModel *model) override;
 
 public Q_SLOTS:
     /**
      * Sets whether the proxy model shall group
      * the annotations by page.
      */
     void groupByPage(bool value);
 
 private Q_SLOTS:
     void rebuildIndexes();
     void sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
 
 private:
     bool mGroupByPage;
     QList<QModelIndex> mIndexes;
     QList<QPair<QModelIndex, QList<QModelIndex>>> mTreeIndexes;
 };
 
 /**
  * A proxy model which groups the annotations by author.
  */
 class AuthorGroupProxyModel : public QAbstractProxyModel
 {
     Q_OBJECT
 
 public:
     /**
      * Creates a new author group proxy model.
      *
      * @param parent The parent object.
      */
     explicit AuthorGroupProxyModel(QObject *parent = nullptr);
     ~AuthorGroupProxyModel() override;
 
     int columnCount(const QModelIndex &parentIndex) const override;
     int rowCount(const QModelIndex &parentIndex) const override;
 
     QModelIndex index(int row, int column, const QModelIndex &parentIndex = QModelIndex()) const override;
     QModelIndex parent(const QModelIndex &index) const override;
 
     QModelIndex mapFromSource(const QModelIndex &sourceIndex) const override;
     QModelIndex mapToSource(const QModelIndex &proxyIndex) const override;
 
     void setSourceModel(QAbstractItemModel *model) override;
 
     QItemSelection mapSelectionToSource(const QItemSelection &selection) const override;
     QItemSelection mapSelectionFromSource(const QItemSelection &selection) const override;
     QVariant data(const QModelIndex &proxyIndex, int role = Qt::DisplayRole) const override;
     QMap<int, QVariant> itemData(const QModelIndex &index) const override;
     Qt::ItemFlags flags(const QModelIndex &index) const override;
 
 public Q_SLOTS:
     /**
      * Sets whether the proxy model shall group
      * the annotations by author.
      */
     void groupByAuthor(bool value);
 
 private Q_SLOTS:
     void rebuildIndexes();
     void sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
 
 private:
     class Private;
     Private *const d;
 };
 
 #endif