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| |
| #ifndef QQMLINSTANCEMODEL_P_H |
| #define QQMLINSTANCEMODEL_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <private/qtqmlmodelsglobal_p.h> |
| #include <private/qqmlincubator_p.h> |
| #include <QtQml/qqml.h> |
| #include <QtCore/qobject.h> |
| |
| QT_REQUIRE_CONFIG(qml_object_model); |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QObject; |
| class QQmlChangeSet; |
| class QAbstractItemModel; |
| |
| class Q_QMLMODELS_PRIVATE_EXPORT QQmlInstanceModel : public QObject |
| { |
| Q_OBJECT |
| |
| Q_PROPERTY(int count READ count NOTIFY countChanged) |
| QML_ANONYMOUS |
| |
| public: |
| enum ReusableFlag { |
| NotReusable, |
| Reusable |
| }; |
| |
| virtual ~QQmlInstanceModel() {} |
| |
| enum ReleaseFlag { Referenced = 0x01, Destroyed = 0x02, Pooled = 0x04 }; |
| Q_DECLARE_FLAGS(ReleaseFlags, ReleaseFlag) |
| |
| virtual int count() const = 0; |
| virtual bool isValid() const = 0; |
| virtual QObject *object(int index, QQmlIncubator::IncubationMode incubationMode = QQmlIncubator::AsynchronousIfNested) = 0; |
| virtual ReleaseFlags release(QObject *object, ReusableFlag reusableFlag = NotReusable) = 0; |
| virtual void cancel(int) {} |
| QString stringValue(int index, const QString &role) { return variantValue(index, role).toString(); } |
| virtual QVariant variantValue(int, const QString &) = 0; |
| virtual void setWatchedRoles(const QList<QByteArray> &roles) = 0; |
| virtual QQmlIncubator::Status incubationStatus(int index) = 0; |
| |
| virtual void drainReusableItemsPool(int maxPoolTime) { Q_UNUSED(maxPoolTime) } |
| virtual int poolSize() { return 0; } |
| |
| virtual int indexOf(QObject *object, QObject *objectContext) const = 0; |
| virtual const QAbstractItemModel *abstractItemModel() const { return nullptr; } |
| |
| Q_SIGNALS: |
| void countChanged(); |
| void modelUpdated(const QQmlChangeSet &changeSet, bool reset); |
| void createdItem(int index, QObject *object); |
| void initItem(int index, QObject *object); |
| void destroyingItem(QObject *object); |
| Q_REVISION(15) void itemPooled(int index, QObject *object); |
| Q_REVISION(15) void itemReused(int index, QObject *object); |
| |
| protected: |
| QQmlInstanceModel(QObjectPrivate &dd, QObject *parent = nullptr) |
| : QObject(dd, parent) {} |
| |
| private: |
| Q_DISABLE_COPY(QQmlInstanceModel) |
| }; |
| |
| class QQmlObjectModelAttached; |
| class QQmlObjectModelPrivate; |
| class Q_QMLMODELS_PRIVATE_EXPORT QQmlObjectModel : public QQmlInstanceModel |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QQmlObjectModel) |
| |
| Q_PROPERTY(QQmlListProperty<QObject> children READ children NOTIFY childrenChanged DESIGNABLE false) |
| Q_CLASSINFO("DefaultProperty", "children") |
| QML_NAMED_ELEMENT(ObjectModel) |
| QML_ADDED_IN_MINOR_VERSION(1) |
| QML_ATTACHED(QQmlObjectModelAttached) |
| |
| public: |
| QQmlObjectModel(QObject *parent=nullptr); |
| ~QQmlObjectModel() {} |
| |
| int count() const override; |
| bool isValid() const override; |
| QObject *object(int index, QQmlIncubator::IncubationMode incubationMode = QQmlIncubator::AsynchronousIfNested) override; |
| ReleaseFlags release(QObject *object, ReusableFlag reusable = NotReusable) override; |
| QVariant variantValue(int index, const QString &role) override; |
| void setWatchedRoles(const QList<QByteArray> &) override {} |
| QQmlIncubator::Status incubationStatus(int index) override; |
| |
| int indexOf(QObject *object, QObject *objectContext) const override; |
| |
| QQmlListProperty<QObject> children(); |
| |
| static QQmlObjectModelAttached *qmlAttachedProperties(QObject *obj); |
| |
| Q_REVISION(3) Q_INVOKABLE QObject *get(int index) const; |
| Q_REVISION(3) Q_INVOKABLE void append(QObject *object); |
| Q_REVISION(3) Q_INVOKABLE void insert(int index, QObject *object); |
| Q_REVISION(3) Q_INVOKABLE void move(int from, int to, int n = 1); |
| Q_REVISION(3) Q_INVOKABLE void remove(int index, int n = 1); |
| |
| public Q_SLOTS: |
| Q_REVISION(3) void clear(); |
| |
| Q_SIGNALS: |
| void childrenChanged(); |
| |
| private: |
| Q_DISABLE_COPY(QQmlObjectModel) |
| }; |
| |
| class QQmlObjectModelAttached : public QObject |
| { |
| Q_OBJECT |
| |
| public: |
| QQmlObjectModelAttached(QObject *parent) |
| : QObject(parent), m_index(-1) {} |
| ~QQmlObjectModelAttached() { |
| attachedProperties.remove(parent()); |
| } |
| |
| Q_PROPERTY(int index READ index NOTIFY indexChanged) |
| int index() const { return m_index; } |
| void setIndex(int idx) { |
| if (m_index != idx) { |
| m_index = idx; |
| Q_EMIT indexChanged(); |
| } |
| } |
| |
| static QQmlObjectModelAttached *properties(QObject *obj) { |
| QQmlObjectModelAttached *rv = attachedProperties.value(obj); |
| if (!rv) { |
| rv = new QQmlObjectModelAttached(obj); |
| attachedProperties.insert(obj, rv); |
| } |
| return rv; |
| } |
| |
| Q_SIGNALS: |
| void indexChanged(); |
| |
| public: |
| int m_index; |
| |
| static QHash<QObject*, QQmlObjectModelAttached*> attachedProperties; |
| }; |
| |
| |
| QT_END_NAMESPACE |
| |
| QML_DECLARE_TYPE(QQmlInstanceModel) |
| QML_DECLARE_TYPE(QQmlObjectModel) |
| |
| #endif // QQMLINSTANCEMODEL_P_H |