File indexing completed on 2024-05-05 04:38:44

 /*
     SPDX-FileCopyrightText: 2009 David Nolden <david.nolden.kdevelop@art-master.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef KDEVPLATFORM_FOCUSEDTREEVIEW_H
 #define KDEVPLATFORM_FOCUSEDTREEVIEW_H
 
 #include <QTreeView>
 #include "utilexport.h"
 
 namespace KDevelop {
 class FocusedTreeViewPrivate;
 
 /**
  * Specialized version of QTreeView, that allows efficiently managing an extremely
  * long list of items, by focusing the size of the horizontal scroll-bars only on the currently
  * visible items.
  *
  * In addition, this class provides optional automatic scrolling when rows are inserted at the end.
  *
  * @warning Either the scroll-mode ScrollPerItem must be enabled, or the uniformRowHeight flag, for this to work efficiently.
  * @warning This currently only works with flat list models(todo).
  */
 class KDEVPLATFORMUTIL_EXPORT FocusedTreeView : public QTreeView
 {
     Q_OBJECT
 
 public:
     explicit FocusedTreeView(QWidget* parent);
     ~FocusedTreeView() override;
 
     /**
      * When enabled, automatically scroll to bottom when new rows are inserted at the end
      * and the end was previously visible. (Default: false)
      */
     void setAutoScrollAtEnd(bool enable);
 
     void setModel(QAbstractItemModel* model) override;
     int sizeHintForColumn(int column) const override;
 
     /**
      * Resize columns to contents.
      *
      * Call this function after modifying the @a wordWrap property to rewrap lines
      * immediately rather than only after subsequent vertical scrolling.
      */
     void fitColumns();
 
 protected:
     void resizeEvent(QResizeEvent* event) override;
 
 private Q_SLOTS:
     void rowsAboutToBeInserted(const QModelIndex& parent, int first, int last);
     void rowsRemoved(const QModelIndex& parent, int first, int last);
     void delayedAutoScrollAndResize();
 
 private:
     const QScopedPointer<class FocusedTreeViewPrivate> d_ptr;
     Q_DECLARE_PRIVATE(FocusedTreeView)
 };
 
 }
 
 #endif // KDEVPLATFORM_FOCUSEDLISTVIEW_H