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annotationproxymodels.h
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annotationproxymodels.h
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/*
SPDX-FileCopyrightText: 2007 Tobias Koenig <[email protected]>
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 QList<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 QList<int> &roles);
private:
class Private;
Private *const d;
};
#endif