73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
// For license of this file, see <project-root-folder>/LICENSE.md.
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#ifndef MESSAGESPROXYMODEL_H
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#define MESSAGESPROXYMODEL_H
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#include <QSortFilterProxyModel>
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class MessagesModel;
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class Message;
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class MessagesProxyModel : public QSortFilterProxyModel {
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Q_OBJECT
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public:
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// Enum which describes basic filtering schemes
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// for messages.
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enum class MessageListFilter {
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NoFiltering = 1,
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ShowUnread = 2,
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ShowImportant = 4,
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ShowToday = 8,
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ShowYesterday = 16,
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ShowLast24Hours = 32,
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ShowLast48Hours = 64,
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ShowThisWeek = 128,
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ShowLastWeek = 256,
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ShowOnlyWithAttachments = 512,
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ShowOnlyWithScore = 1024
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};
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explicit MessagesProxyModel(MessagesModel* source_model, QObject* parent = nullptr);
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virtual ~MessagesProxyModel();
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QModelIndex getNextPreviousImportantItemIndex(int default_row);
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QModelIndex getNextPreviousUnreadItemIndex(int default_row);
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// Maps list of indexes.
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QModelIndexList mapListToSource(const QModelIndexList& indexes) const;
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QModelIndexList mapListFromSource(const QModelIndexList& indexes, bool deep = false) const;
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void setMessageListFilter(MessageListFilter filter);
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// Fix for matching indexes with respect to specifics of the message model.
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virtual QModelIndexList match(const QModelIndex& start,
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int role,
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const QVariant& entered_value,
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int hits,
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Qt::MatchFlags flags) const;
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// Performs sort of items.
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virtual void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
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private:
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void initializeFilters();
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QModelIndex getNextImportantItemIndex(int default_row, int max_row) const;
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QModelIndex getNextUnreadItemIndex(int default_row, int max_row) const;
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bool filterAcceptsMessage(int msg_row_index) const;
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virtual bool lessThan(const QModelIndex& left, const QModelIndex& right) const;
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virtual bool filterAcceptsRow(int source_row, const QModelIndex& source_parent) const;
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// Source model pointer.
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MessagesModel* m_sourceModel;
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MessageListFilter m_filter;
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QMap<MessageListFilter, std::function<bool(int)>> m_filters;
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QList<MessageListFilter> m_filterKeys;
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};
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Q_DECLARE_METATYPE(MessagesProxyModel::MessageListFilter)
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#endif // MESSAGESPROXYMODEL_H
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