File indexing completed on 2024-04-28 05:45:07

 /*
  * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef KITEMLISTGROUPHEADER_H
 #define KITEMLISTGROUPHEADER_H
 
 #include "dolphin_export.h"
 #include "kitemviews/kitemliststyleoption.h"
 
 #include <QByteArray>
 #include <QGraphicsWidget>
 #include <QVariant>
 
 class KItemListView;
 
 /**
  * @brief Base class for group headers.
  *
  * Draws a default header background. Derived classes must reimplement
  * the method paint() and draw the role within the given roleBounds() with
  * the color roleColor().
  */
 class DOLPHIN_EXPORT KItemListGroupHeader : public QGraphicsWidget
 {
     Q_OBJECT
 
 public:
     explicit KItemListGroupHeader(QGraphicsWidget *parent = nullptr);
     ~KItemListGroupHeader() override;
 
     void setRole(const QByteArray &role);
     QByteArray role() const;
 
     void setData(const QVariant &data);
     QVariant data() const;
 
     void setStyleOption(const KItemListStyleOption &option);
     const KItemListStyleOption &styleOption() const;
 
     /**
      * Sets the scroll orientation that is used by the KItemListView.
      * This allows the group header to use a modified look dependent
      * on the orientation.
      */
     void setScrollOrientation(Qt::Orientation orientation);
     Qt::Orientation scrollOrientation() const;
 
     void setItemIndex(int index);
     int itemIndex() const;
 
     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;
 
 protected:
     virtual void paintRole(QPainter *painter, const QRectF &roleBounds, const QColor &color) = 0;
     virtual void paintSeparator(QPainter *painter, const QColor &color) = 0;
 
     /**
      * Is called after the role has been changed and allows the derived class
      * to react on this change.
      */
     virtual void roleChanged(const QByteArray &current, const QByteArray &previous);
 
     /**
      * Is called after the role has been changed and allows the derived class
      * to react on this change.
      */
     virtual void dataChanged(const QVariant &current, const QVariant &previous);
 
     /**
      * Is called after the style option has been changed and allows the derived class
      * to react on this change.
      */
     virtual void styleOptionChanged(const KItemListStyleOption &current, const KItemListStyleOption &previous);
 
     /**
      * Is called after the scroll orientation has been changed and allows the derived class
      * to react on this change.
      */
     virtual void scrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous);
 
     /**
      * Is called after the item index has been changed and allows the derived class to react on
      * this change.
      */
     virtual void itemIndexChanged(int current, int previous);
 
     void resizeEvent(QGraphicsSceneResizeEvent *event) override;
 
     virtual QPalette::ColorRole normalTextColorRole() const;
     virtual QPalette::ColorRole normalBaseColorRole() const;
 
 private:
     void updateCache();
     void updateSize();
 
     static QColor mixedColor(const QColor &c1, const QColor &c2, int c1Percent = 50);
 
     QColor textColor() const;
     QColor baseColor() const;
 
 private:
     bool m_dirtyCache;
     QByteArray m_role;
     QVariant m_data;
     KItemListStyleOption m_styleOption;
     Qt::Orientation m_scrollOrientation;
     int m_itemIndex;
 
     QColor m_separatorColor;
     QColor m_roleColor;
     QRectF m_roleBounds;
 };
 #endif