vicrodh
1bb3c41dcf
Add an opt-in QAbstractListModel backed by keyset pages from the derived catalog, with bounded residency, global query semantics, source-aware actions, and per-session fallback to the existing reader. Wire profile-scoped bootstrap locations and refresh the native surface only after a complete catalog is active. cx
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
#ifndef QBZ_LOCAL_TRACKS_MODEL_H
|
|
#define QBZ_LOCAL_TRACKS_MODEL_H
|
|
|
|
#include <QtCore/QAbstractListModel>
|
|
#include <QtCore/QHash>
|
|
#include <QtCore/QList>
|
|
#include <QtCore/QVariantMap>
|
|
|
|
class LocalTracksModel final : public QAbstractListModel
|
|
{
|
|
Q_OBJECT
|
|
Q_PROPERTY(int generation READ generation NOTIFY generationChanged)
|
|
Q_PROPERTY(qint64 totalCount READ totalCount NOTIFY totalCountChanged)
|
|
Q_PROPERTY(int residentRows READ residentRows NOTIFY residentRowsChanged)
|
|
Q_PROPERTY(qint64 evictions READ evictions NOTIFY evictionsChanged)
|
|
Q_PROPERTY(qint64 selectedCount READ selectedCount NOTIFY selectedCountChanged)
|
|
|
|
public:
|
|
enum Role { ModelDataRole = Qt::UserRole + 1 };
|
|
|
|
explicit LocalTracksModel(QObject *parent = nullptr);
|
|
|
|
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
|
|
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
|
|
QHash<int, QByteArray> roleNames() const override;
|
|
|
|
int generation() const { return m_generation; }
|
|
qint64 totalCount() const { return m_totalCount; }
|
|
int residentRows() const { return m_residentRows; }
|
|
qint64 evictions() const { return m_evictions; }
|
|
qint64 selectedCount() const { return m_selectedCount; }
|
|
|
|
Q_INVOKABLE QVariantMap rowAt(qint64 row) const;
|
|
Q_INVOKABLE void setArtwork(const QString &artKey, const QString &path);
|
|
|
|
void resetQuery(int generation, qint64 totalCount, const QString &group);
|
|
bool applyPage(int generation, int page, const QByteArray &json);
|
|
void setSelection(int generation, const QByteArray &json, qint64 selectedCount);
|
|
|
|
signals:
|
|
void generationChanged();
|
|
void totalCountChanged();
|
|
void residentRowsChanged();
|
|
void evictionsChanged();
|
|
void selectedCountChanged();
|
|
void pageMiss(int page, int generation);
|
|
|
|
private:
|
|
struct TrackRow {
|
|
QVariantMap row;
|
|
QString artKey;
|
|
QString groupLabel;
|
|
bool groupStart = false;
|
|
};
|
|
using Page = QList<TrackRow>;
|
|
|
|
static constexpr int PageRows = 250;
|
|
static constexpr int MaxResidentPages = 8;
|
|
|
|
QVariantMap modelData(qint64 row) const;
|
|
void requestPage(int page, bool prefetch = false) const;
|
|
void touch(int page) const;
|
|
bool selected(qint64 row) const;
|
|
void evictIfNeeded();
|
|
|
|
int m_generation = 0;
|
|
qint64 m_totalCount = 0;
|
|
QString m_group;
|
|
QHash<int, Page> m_pages;
|
|
mutable QList<int> m_lru;
|
|
mutable QHash<int, bool> m_pending;
|
|
int m_residentRows = 0;
|
|
qint64 m_evictions = 0;
|
|
bool m_selectAll = false;
|
|
QList<QPair<qint64, qint64>> m_selectionRanges;
|
|
qint64 m_selectedCount = 0;
|
|
};
|
|
|
|
extern "C" {
|
|
void qbz_local_tracks_register_qml_type();
|
|
void qbz_local_tracks_reset(int generation, qint64 totalCount, const char *group);
|
|
bool qbz_local_tracks_apply_page(int generation, int page, const char *json);
|
|
void qbz_local_tracks_set_selection(int generation, const char *json, qint64 selectedCount);
|
|
}
|
|
|
|
#endif // QBZ_LOCAL_TRACKS_MODEL_H
|