javier
68d237c873
- EmailListModel: QAbstractListModel with canFetchMore/fetchMore * Batch loading (default 50 emails per fetch) * Total count query for scrollbar * TotalCountChanged signal * Paginated DB queries: findAllPaginated, findByFolderIdPaginated * Count queries: countAll, countByFolderId - MailItemDao: new paginated methods * findAllPaginated(offset, limit, filters...) * findByFolderIdPaginated(folderId, offset, limit, filters...) * countAll(filters...), countByFolderId(folderId, filters...) - MailListView: scroll-triggered fetchMore * Connects verticalScrollBar valueChanged on both TreeView and ListView * Triggers fetchMore at 90% scroll threshold * onRowsInserted updates EmailTreeModel when new emails arrive * Works in both normal (tree) and compact (list) views
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
#ifndef EMAILLISTMODEL_H
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#define EMAILLISTMODEL_H
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#include <QAbstractTableModel>
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#include <QHash>
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#include <QByteArray>
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#include "../db/dao/mailitemdao.h"
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class EmailListModel : public QAbstractListModel
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{
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Q_OBJECT
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public:
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explicit EmailListModel(QObject *parent = nullptr);
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~EmailListModel() override = default;
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enum EmailRoles {
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IdRole = Qt::UserRole + 1,
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SubjectRole,
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SenderRole,
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RecipientRole,
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DateRole,
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ReadRole,
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FlaggedRole,
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AttachmentsRole,
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FileIdRole,
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SizeRole,
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MessageIdRole,
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SenderInitialRole, // computed from sender
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ThreadIdRole,
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InReplyToRole,
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ReferencesRole,
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IsPinnedRole
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};
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// QAbstractListModel interface
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int rowCount(const QModelIndex &parent = QModelIndex()) const override;
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QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
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QHash<int, QByteArray> roleNames() const override;
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bool canFetchMore(const QModelIndex &parent) const override;
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void fetchMore(const QModelIndex &parent) override;
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// Set the folderId to filter emails; -1 means all folders
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void setFolderId(int folderId);
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// Refresh the model from the database based on current folderId
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void refresh();
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// Set search filter on the model
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void setSearchFilter(const QString &filter);
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// Set filter flags
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void setShowUnreadOnly(bool show);
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void setShowFlaggedOnly(bool show);
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void setShowHasAttachments(bool show);
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// Set batch size for pagination
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void setBatchSize(int size) { m_batchSize = size; }
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// Get all emails currently in the model (after filtering)
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const QVector<MailItem>& emails() const { return m_emails; }
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// Total count of emails matching filters (including unloaded)
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int totalCount() const { return m_totalCount; }
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signals:
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void totalCountChanged(int count);
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private:
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QVector<MailItem> m_emails;
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int m_folderId{-1}; // -1 means all folders
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QString m_searchFilter;
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bool m_unreadOnly{false};
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bool m_flaggedOnly{false};
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bool m_hasAttachments{false};
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int m_batchSize{50}; // emails per fetch
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int m_loadedCount{0}; // how many emails currently loaded
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int m_totalCount{0}; // total matching emails in DB
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};
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#endif // EMAILLISTMODEL_H
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