qcolumnview.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 QCOLUMNVIEW_H
#define QCOLUMNVIEW_H
 
#include <QtWidgets/qtwidgetsglobal.h>
#include <QtWidgets/qabstractitemview.h>
 
QT_REQUIRE_CONFIG(columnview);
 
QT_BEGIN_NAMESPACE
 
class QColumnViewPrivate;
 
class Q_WIDGETS_EXPORT QColumnView : public QAbstractItemView {
 
Q_OBJECT
    Q_PROPERTY(bool resizeGripsVisible READ resizeGripsVisible WRITE setResizeGripsVisible)
 
Q_SIGNALS:
    void updatePreviewWidget(const QModelIndex &index);
 
public:
    explicit QColumnView(QWidget *parent = nullptr);
    ~QColumnView();
 
    // QAbstractItemView overloads
    QModelIndex indexAt(const QPoint &point) const override;
    void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) override;
    QSize sizeHint() const override;
    QRect visualRect(const QModelIndex &index) const override;
    void setModel(QAbstractItemModel *model) override;
    void setSelectionModel(QItemSelectionModel * selectionModel) override;
    void setRootIndex(const QModelIndex &index) override;
    void selectAll() override;
 
    // QColumnView functions
    void setResizeGripsVisible(bool visible);
    bool resizeGripsVisible() const;
 
    QWidget *previewWidget() const;
    void setPreviewWidget(QWidget *widget);
 
    void setColumnWidths(const QList<int> &list);
    QList<int> columnWidths() const;
 
protected:
    QColumnView(QColumnViewPrivate &dd, QWidget *parent = nullptr);
 
    // QAbstractItemView overloads
    bool isIndexHidden(const QModelIndex &index) const override;
    QModelIndex moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers) override;
    void resizeEvent(QResizeEvent *event) override;
    void setSelection(const QRect & rect, QItemSelectionModel::SelectionFlags command) override;
    QRegion visualRegionForSelection(const QItemSelection &selection) const override;
    int horizontalOffset() const override;
    int verticalOffset() const override;
    void rowsInserted(const QModelIndex &parent, int start, int end) override;
    void currentChanged(const QModelIndex &current, const QModelIndex &previous) override;
 
    // QColumnView functions
    void scrollContentsBy(int dx, int dy) override;
    virtual QAbstractItemView* createColumn(const QModelIndex &rootIndex);
    void initializeColumn(QAbstractItemView *column) const;
 
private:
    Q_DECLARE_PRIVATE(QColumnView)
    Q_DISABLE_COPY(QColumnView)
};
 
QT_END_NAMESPACE
 
#endif // QCOLUMNVIEW_H