File indexing completed on 2024-05-12 04:20:44

 /*
  * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
  *
  * This file is part of the KGantt library.
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef KGANTTLEGEND_H
 #define KGANTTLEGEND_H
 
 #include <QAbstractItemView>
 
 #include "kganttglobal.h"
 #include "kganttstyleoptionganttitem.h"
 
 namespace KGantt 
 {
 
     /*!\class KGantt::Legend kganttlegend.h KGanttLegend
      * \ingroup KGantt
      * \brief Legend showing an image and a description for Gantt items
      *
      * This is an item view class showing a small Gantt item and it's
      * text defined by LegendRole.
      */
     class KGANTT_EXPORT Legend : public QAbstractItemView
     {
         Q_OBJECT
         KGANTT_DECLARE_PRIVATE_BASE_POLYMORPHIC( Legend )
     public:
         /*! Constructor. Creates a Legend with parent \a parent.
          * The QObject parent is not used for anything internally. */
         explicit Legend( QWidget* parent = nullptr );
 
         /*! Destructor. Does nothing */
         ~Legend() override;
 
         /*reimp*/ QModelIndex indexAt( const QPoint& point ) const override;
         /*reimp*/ QRect visualRect( const QModelIndex& index ) const override;
 
         /*reimp*/ void scrollTo( const QModelIndex&, ScrollHint = EnsureVisible ) override {}
 
         /*reimp*/ QSize sizeHint() const override;
         /*reimp*/ QSize minimumSizeHint() const override;
 
         /*reimp*/ void setModel( QAbstractItemModel* model ) override;
 
     protected:
         /*! Draws the legend item at \a index and all of it's children recursively 
          *  at \a pos onto \a painter.
          *  Reimplement this if you want to draw items in an user defined way.
          *  \returns the rectangle drawn.
          */
         virtual QRect drawItem( QPainter* painter, const QModelIndex& index, const QPoint& pos = QPoint() ) const;
 
         /*! Calculates the needed space for the legend item at \a index and, if \a recursive is true,
          *  all child items.
          */
         virtual QSize measureItem( const QModelIndex& index, bool recursive = true ) const;
 
         /*! Creates a StyleOptionGanttItem with all style options filled in
          *  except the target rectangles.
          */
         virtual StyleOptionGanttItem getStyleOption( const QModelIndex& index ) const;
 
         /*reimp*/ void paintEvent( QPaintEvent* event ) override;
 
         /*reimp*/ int horizontalOffset() const override { return 0; }
         /*reimp*/ bool isIndexHidden( const QModelIndex& ) const override { return false; }
         /*reimp*/ QModelIndex moveCursor( CursorAction, Qt::KeyboardModifiers ) override { return QModelIndex(); }
         /*reimp*/ void setSelection( const QRect&, QItemSelectionModel::SelectionFlags ) override {}
         /*reimp*/ int verticalOffset() const override { return 0; }
         /*reimp*/ QRegion visualRegionForSelection( const QItemSelection& ) const override { return QRegion(); }
 
     protected Q_SLOTS:
         /*! Triggers repainting of the legend.
          */
         virtual void modelDataChanged();
     };
 }
 
 #endif