QskScrollViewSkinlet.h

/******************************************************************************
 * QSkinny - Copyright (C) The authors
 *           SPDX-License-Identifier: BSD-3-Clause
 *****************************************************************************/
 
#ifndef QSK_SCROLL_VIEW_SKINLET_H
#define QSK_SCROLL_VIEW_SKINLET_H
 
#include "QskSkinlet.h"
 
class QskScrollView;
 
class QSK_EXPORT QskScrollViewSkinlet : public QskSkinlet
{
    Q_GADGET
 
    using Inherited = QskSkinlet;
 
  public:
    enum NodeRole
    {
        PanelRole,
        ViewportRole,
        ContentsRootRole,
 
        HorizontalScrollBarRole,
        HorizontalScrollHandleRole,
 
        VerticalScrollBarRole,
        VerticalScrollHandleRole,
 
        RoleCount
    };
 
    Q_INVOKABLE QskScrollViewSkinlet( QskSkin* = nullptr );
    ~QskScrollViewSkinlet() override;
 
    QRectF subControlRect( const QskSkinnable*,
        const QRectF&, QskAspect::Subcontrol ) const override;
 
  protected:
    QSGNode* updateSubNode( const QskSkinnable*,
        quint8 nodeRole, QSGNode* ) const override;
 
    virtual QSGNode* updateContentsNode( const QskScrollView*, QSGNode* ) const;
 
  private:
    QSGNode* updateContentsRootNode( const QskScrollView*, QSGNode* ) const;
    QSGNode* updateScrollBarNode(
        const QskScrollView*, QskAspect::Subcontrol, QSGNode* ) const;
 
    QRectF viewportRect( const QskScrollView*, const QRectF& ) const;
    QRectF scrollBarRect( const QskScrollView*, const QRectF&, Qt::Orientation ) const;
    QRectF scrollHandleRect( const QskScrollView*, const QRectF&, Qt::Orientation ) const;
};
 
#endif