qstandarditemmodel.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QSTANDARDITEMMODEL_H
#define QSTANDARDITEMMODEL_H
 
#include <QtGui/qtguiglobal.h>
#include <QtCore/qabstractitemmodel.h>
#include <QtGui/qbrush.h>
#include <QtGui/qfont.h>
#include <QtGui/qicon.h>
#ifndef QT_NO_DATASTREAM
#include <QtCore/qdatastream.h>
#endif
 
QT_REQUIRE_CONFIG(standarditemmodel);
 
QT_BEGIN_NAMESPACE
 
class QStandardItemModel;
 
class QStandardItemPrivate;
class Q_GUI_EXPORT QStandardItem
{
public:
    QStandardItem();
    explicit QStandardItem(const QString &text);
    QStandardItem(const QIcon &icon, const QString &text);
    explicit QStandardItem(int rows, int columns = 1);
    virtual ~QStandardItem();
 
    virtual QVariant data(int role = Qt::UserRole + 1) const;
    virtual void multiData(QModelRoleDataSpan roleDataSpan) const;
    virtual void setData(const QVariant &value, int role = Qt::UserRole + 1);
    void clearData();
 
    inline QString text() const {
        return qvariant_cast<QString>(data(Qt::DisplayRole));
    }
    inline void setText(const QString &text);
 
    inline QIcon icon() const {
        return qvariant_cast<QIcon>(data(Qt::DecorationRole));
    }
    inline void setIcon(const QIcon &icon);
 
    inline QString toolTip() const {
        return qvariant_cast<QString>(data(Qt::ToolTipRole));
    }
    inline void setToolTip(const QString &toolTip);
 
#ifndef QT_NO_STATUSTIP
    inline QString statusTip() const {
        return qvariant_cast<QString>(data(Qt::StatusTipRole));
    }
    inline void setStatusTip(const QString &statusTip);
#endif
 
#if QT_CONFIG(whatsthis)
    inline QString whatsThis() const {
        return qvariant_cast<QString>(data(Qt::WhatsThisRole));
    }
    inline void setWhatsThis(const QString &whatsThis);
#endif
 
    inline QSize sizeHint() const {
        return qvariant_cast<QSize>(data(Qt::SizeHintRole));
    }
    inline void setSizeHint(const QSize &sizeHint);
 
    inline QFont font() const {
        return qvariant_cast<QFont>(data(Qt::FontRole));
    }
    inline void setFont(const QFont &font);
 
    inline Qt::Alignment textAlignment() const {
        return qvariant_cast<Qt::Alignment>(data(Qt::TextAlignmentRole));
    }
    inline void setTextAlignment(Qt::Alignment textAlignment);
 
    inline QBrush background() const {
        return qvariant_cast<QBrush>(data(Qt::BackgroundRole));
    }
    inline void setBackground(const QBrush &brush);
 
    inline QBrush foreground() const {
        return qvariant_cast<QBrush>(data(Qt::ForegroundRole));
    }
    inline void setForeground(const QBrush &brush);
 
    inline Qt::CheckState checkState() const {
        return Qt::CheckState(qvariant_cast<int>(data(Qt::CheckStateRole)));
    }
    inline void setCheckState(Qt::CheckState checkState);
 
    inline QString accessibleText() const {
        return qvariant_cast<QString>(data(Qt::AccessibleTextRole));
    }
    inline void setAccessibleText(const QString &accessibleText);
 
    inline QString accessibleDescription() const {
        return qvariant_cast<QString>(data(Qt::AccessibleDescriptionRole));
    }
    inline void setAccessibleDescription(const QString &accessibleDescription);
 
    Qt::ItemFlags flags() const;
    void setFlags(Qt::ItemFlags flags);
 
    inline bool isEnabled() const {
        return bool(flags() & Qt::ItemIsEnabled);
    }
    void setEnabled(bool enabled);
 
    inline bool isEditable() const {
        return bool(flags() & Qt::ItemIsEditable);
    }
    void setEditable(bool editable);
 
    inline bool isSelectable() const {
        return bool(flags() & Qt::ItemIsSelectable);
    }
    void setSelectable(bool selectable);
 
    inline bool isCheckable() const {
        return bool(flags() & Qt::ItemIsUserCheckable);
    }
    void setCheckable(bool checkable);
 
    inline bool isAutoTristate() const {
        return bool(flags() & Qt::ItemIsAutoTristate);
    }
    void setAutoTristate(bool tristate);
 
    inline bool isUserTristate() const {
        return bool(flags() & Qt::ItemIsUserTristate);
    }
    void setUserTristate(bool tristate);
 
#if QT_CONFIG(draganddrop)
    inline bool isDragEnabled() const {
        return bool(flags() & Qt::ItemIsDragEnabled);
    }
    void setDragEnabled(bool dragEnabled);
 
    inline bool isDropEnabled() const {
        return bool(flags() & Qt::ItemIsDropEnabled);
    }
    void setDropEnabled(bool dropEnabled);
#endif // QT_CONFIG(draganddrop)
 
    QStandardItem *parent() const;
    int row() const;
    int column() const;
    QModelIndex index() const;
    QStandardItemModel *model() const;
 
    int rowCount() const;
    void setRowCount(int rows);
    int columnCount() const;
    void setColumnCount(int columns);
 
    bool hasChildren() const;
    QStandardItem *child(int row, int column = 0) const;
    void setChild(int row, int column, QStandardItem *item);
    inline void setChild(int row, QStandardItem *item);
 
    void insertRow(int row, const QList<QStandardItem*> &items);
    void insertColumn(int column, const QList<QStandardItem*> &items);
    void insertRows(int row, const QList<QStandardItem*> &items);
    void insertRows(int row, int count);
    void insertColumns(int column, int count);
 
    void removeRow(int row);
    void removeColumn(int column);
    void removeRows(int row, int count);
    void removeColumns(int column, int count);
 
    inline void appendRow(const QList<QStandardItem*> &items);
    inline void appendRows(const QList<QStandardItem*> &items);
    inline void appendColumn(const QList<QStandardItem*> &items);
    inline void insertRow(int row, QStandardItem *item);
    inline void appendRow(QStandardItem *item);
 
    QStandardItem *takeChild(int row, int column = 0);
    QList<QStandardItem*> takeRow(int row);
    QList<QStandardItem*> takeColumn(int column);
 
    void sortChildren(int column, Qt::SortOrder order = Qt::AscendingOrder);
 
    virtual QStandardItem *clone() const;
 
    enum ItemType { Type = 0, UserType = 1000 };
    virtual int type() const;
 
#ifndef QT_NO_DATASTREAM
    virtual void read(QDataStream &in);
    virtual void write(QDataStream &out) const;
#endif
    virtual bool operator<(const QStandardItem &other) const;
 
protected:
    QStandardItem(const QStandardItem &other);
    QStandardItem(QStandardItemPrivate &dd);
    QStandardItem &operator=(const QStandardItem &other);
    QScopedPointer<QStandardItemPrivate> d_ptr;
 
    void emitDataChanged();
 
private:
    Q_DECLARE_PRIVATE(QStandardItem)
    friend class QStandardItemModelPrivate;
    friend class QStandardItemModel;
};
 
inline void QStandardItem::setText(const QString &atext)
{ setData(atext, Qt::DisplayRole); }
 
inline void QStandardItem::setIcon(const QIcon &aicon)
{ setData(aicon, Qt::DecorationRole); }
 
inline void QStandardItem::setToolTip(const QString &atoolTip)
{ setData(atoolTip, Qt::ToolTipRole); }
 
#ifndef QT_NO_STATUSTIP
inline void QStandardItem::setStatusTip(const QString &astatusTip)
{ setData(astatusTip, Qt::StatusTipRole); }
#endif
 
#if QT_CONFIG(whatsthis)
inline void QStandardItem::setWhatsThis(const QString &awhatsThis)
{ setData(awhatsThis, Qt::WhatsThisRole); }
#endif
 
inline void QStandardItem::setSizeHint(const QSize &asizeHint)
{ setData(asizeHint, Qt::SizeHintRole); }
 
inline void QStandardItem::setFont(const QFont &afont)
{ setData(afont, Qt::FontRole); }
 
inline void QStandardItem::setTextAlignment(Qt::Alignment atextAlignment)
{ setData(QVariant::fromValue(atextAlignment), Qt::TextAlignmentRole); }
 
inline void QStandardItem::setBackground(const QBrush &abrush)
{ setData(abrush, Qt::BackgroundRole); }
 
inline void QStandardItem::setForeground(const QBrush &abrush)
{ setData(abrush, Qt::ForegroundRole); }
 
inline void QStandardItem::setCheckState(Qt::CheckState acheckState)
{ setData(acheckState, Qt::CheckStateRole); }
 
inline void QStandardItem::setAccessibleText(const QString &aaccessibleText)
{ setData(aaccessibleText, Qt::AccessibleTextRole); }
 
inline void QStandardItem::setAccessibleDescription(const QString &aaccessibleDescription)
{ setData(aaccessibleDescription, Qt::AccessibleDescriptionRole); }
 
inline void QStandardItem::setChild(int arow, QStandardItem *aitem)
{ setChild(arow, 0, aitem); }
 
inline void QStandardItem::appendRow(const QList<QStandardItem*> &aitems)
{ insertRow(rowCount(), aitems); }
 
inline void QStandardItem::appendRows(const QList<QStandardItem*> &aitems)
{ insertRows(rowCount(), aitems); }
 
inline void QStandardItem::appendColumn(const QList<QStandardItem*> &aitems)
{ insertColumn(columnCount(), aitems); }
 
inline void QStandardItem::insertRow(int arow, QStandardItem *aitem)
{ insertRow(arow, QList<QStandardItem*>() << aitem); }
 
inline void QStandardItem::appendRow(QStandardItem *aitem)
{ insertRow(rowCount(), aitem); }
 
class QStandardItemModelPrivate;
 
class Q_GUI_EXPORT QStandardItemModel : public QAbstractItemModel
{
    Q_OBJECT
    Q_PROPERTY(int sortRole READ sortRole WRITE setSortRole BINDABLE bindableSortRole)
 
public:
    explicit QStandardItemModel(QObject *parent = nullptr);
    QStandardItemModel(int rows, int columns, QObject *parent = nullptr);
    ~QStandardItemModel();
 
    void setItemRoleNames(const QHash<int,QByteArray> &roleNames);
    QHash<int, QByteArray> roleNames() const override;
 
    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
    QModelIndex parent(const QModelIndex &child) const override;
 
    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
    bool hasChildren(const QModelIndex &parent = QModelIndex()) const override;
 
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
    void multiData(const QModelIndex &index, QModelRoleDataSpan roleDataSpan) const override;
    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
    bool clearItemData(const QModelIndex &index) override;
 
    QVariant headerData(int section, Qt::Orientation orientation,
                        int role = Qt::DisplayRole) const override;
    bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,
                       int role = Qt::EditRole) override;
 
    bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex()) override;
    bool insertColumns(int column, int count, const QModelIndex &parent = QModelIndex()) override;
    bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex()) override;
    bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex()) override;
 
    Qt::ItemFlags flags(const QModelIndex &index) const override;
    Qt::DropActions supportedDropActions() const override;
 
    QMap<int, QVariant> itemData(const QModelIndex &index) const override;
    bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles) override;
 
    void clear();
 
    using QObject::parent;
 
    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder) override;
 
    QStandardItem *itemFromIndex(const QModelIndex &index) const;
    QModelIndex indexFromItem(const QStandardItem *item) const;
 
    QStandardItem *item(int row, int column = 0) const;
    void setItem(int row, int column, QStandardItem *item);
    inline void setItem(int row, QStandardItem *item);
    QStandardItem *invisibleRootItem() const;
 
    QStandardItem *horizontalHeaderItem(int column) const;
    void setHorizontalHeaderItem(int column, QStandardItem *item);
    QStandardItem *verticalHeaderItem(int row) const;
    void setVerticalHeaderItem(int row, QStandardItem *item);
 
    void setHorizontalHeaderLabels(const QStringList &labels);
    void setVerticalHeaderLabels(const QStringList &labels);
 
    void setRowCount(int rows);
    void setColumnCount(int columns);
 
    void appendRow(const QList<QStandardItem*> &items);
    void appendColumn(const QList<QStandardItem*> &items);
    inline void appendRow(QStandardItem *item);
 
    void insertRow(int row, const QList<QStandardItem*> &items);
    void insertColumn(int column, const QList<QStandardItem*> &items);
    inline void insertRow(int row, QStandardItem *item);
 
    inline bool insertRow(int row, const QModelIndex &parent = QModelIndex());
    inline bool insertColumn(int column, const QModelIndex &parent = QModelIndex());
 
    QStandardItem *takeItem(int row, int column = 0);
    QList<QStandardItem*> takeRow(int row);
    QList<QStandardItem*> takeColumn(int column);
 
    QStandardItem *takeHorizontalHeaderItem(int column);
    QStandardItem *takeVerticalHeaderItem(int row);
 
    const QStandardItem *itemPrototype() const;
    void setItemPrototype(const QStandardItem *item);
 
    QList<QStandardItem*> findItems(const QString &text,
                                    Qt::MatchFlags flags = Qt::MatchExactly,
                                    int column = 0) const;
 
    int sortRole() const;
    void setSortRole(int role);
    QBindable<int> bindableSortRole();
 
    QStringList mimeTypes() const override;
    QMimeData *mimeData(const QModelIndexList &indexes) const override;
    bool dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
 
Q_SIGNALS:
    void itemChanged(QStandardItem *item);
 
protected:
    QStandardItemModel(QStandardItemModelPrivate &dd, QObject *parent = nullptr);
 
private:
    friend class QStandardItemPrivate;
    friend class QStandardItem;
    Q_DISABLE_COPY(QStandardItemModel)
    Q_DECLARE_PRIVATE(QStandardItemModel)
 
    Q_PRIVATE_SLOT(d_func(), void _q_emitItemChanged(const QModelIndex &topLeft,
                                                     const QModelIndex &bottomRight))
};
 
inline void QStandardItemModel::setItem(int arow, QStandardItem *aitem)
{ setItem(arow, 0, aitem); }
 
inline void QStandardItemModel::appendRow(QStandardItem *aitem)
{ appendRow(QList<QStandardItem*>() << aitem); }
 
inline void QStandardItemModel::insertRow(int arow, QStandardItem *aitem)
{ insertRow(arow, QList<QStandardItem*>() << aitem); }
 
inline bool QStandardItemModel::insertRow(int arow, const QModelIndex &aparent)
{ return QAbstractItemModel::insertRow(arow, aparent); }
inline bool QStandardItemModel::insertColumn(int acolumn, const QModelIndex &aparent)
{ return QAbstractItemModel::insertColumn(acolumn, aparent); }
 
#ifndef QT_NO_DATASTREAM
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QStandardItem &item);
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &out, const QStandardItem &item);
#endif
 
QT_END_NAMESPACE
 
#endif //QSTANDARDITEMMODEL_H