BionxControl/bcitemdelegate.h

// BCItemDelegate.h
#ifndef BCITEMDELEGATE_H
#define BCITEMDELEGATE_H

#include <QStyledItemDelegate>

class QPropertyAnimation;
class QVariantAnimation;
class QListView;

class BCItemDelegate : public QStyledItemDelegate
{
  Q_OBJECT
  Q_PROPERTY(qreal highlightOpacity READ highlightOpacity WRITE setHighlightOpacity)

public:

  explicit BCItemDelegate(QListView *view );

  QString displayText(const QVariant& dataValue, const QLocale& locale) const override;

  // Zuständig für den Edit-Modus (Doppelklick)
  QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex& index) const override;
  void setEditorData(QWidget *editor, const QModelIndex& index) const override;
  void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex& index) const override;
  void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex& index) const override;

  QSize sizeHint(const QStyleOptionViewItem &option,const QModelIndex& index) const override;
  void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex& index) const override;

  qreal highlightOpacity() const
  {
    return _opacity;
  }

  void setHighlightOpacity(qreal opacity)
  {
    _opacity = opacity;
    //qDebug() << " --- opa: " << opacity;
    emit viewUpdateNeeded();
  }


  void clearAllHighlights();

public slots:

  void onHighlightRow(int row);


signals:

  void viewUpdateNeeded();

private:

  void updateRow(int row);
  QString formatDisplayString(const QModelIndex& index) const;
  void paintHighlightRow(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const;

  int _highlightedRow{-1};
  qreal _opacity{1.0};
  QListView* _view{};
  QPropertyAnimation *_animation{};

private:

  QHash<int, qreal> m_rowOpacities;
  QHash<int, QVariantAnimation*> m_rowAnimations;

};


#endif // BCITEMDELEGATE_H