qgsfeaturelistview.h

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/***************************************************************************
     QgsAttributeListView.h
     --------------------------------------
    Date                 : Jan 2012
    Copyright            : (C) 2013 Matthias Kuhn
    Email                : matthias at opengis dot ch
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef QGSFEATURELISTVIEW_H
#define QGSFEATURELISTVIEW_H

#include <QListView>
#include <qdebug.h>

#include "qgsfeature.h" // For QgsFeatureIds

class QgsAttributeTableFilterModel;
class QgsFeatureListModel;
class QgsFeatureSelectionModel;
class QgsAttributeTableModel;
class QgsIFeatureSelectionManager;
class QgsVectorLayer;
class QgsVectorLayerCache;
class QgsFeatureListViewDelegate;
class QRect;

class GUI_EXPORT QgsFeatureListView : public QListView
{
    Q_OBJECT

  public:
    explicit QgsFeatureListView( QWidget* parent = nullptr );

    virtual ~QgsFeatureListView() {}

    QgsVectorLayerCache* layerCache();

    virtual void setModel( QgsFeatureListModel* featureListModel );
    QgsFeatureListModel* featureListModel() { return mModel; }

    bool setDisplayExpression( const QString& displayExpression );

    const QString displayExpression() const;

    QString parserErrorString();

    QgsFeatureIds currentEditSelection();

    void setCurrentFeatureEdited( bool state );

    void setFeatureSelectionManager( QgsIFeatureSelectionManager* featureSelectionManager );
  protected:
    virtual void mouseMoveEvent( QMouseEvent *event ) override;
    virtual void mousePressEvent( QMouseEvent *event ) override;
    virtual void mouseReleaseEvent( QMouseEvent *event ) override;
    virtual void keyPressEvent( QKeyEvent *event ) override;
    virtual void contextMenuEvent( QContextMenuEvent *event ) override;

  signals:
    void currentEditSelectionChanged( QgsFeature &feat );

    void displayExpressionChanged( const QString& expression );

    void aboutToChangeEditSelection( bool& ok );

  public slots:
    void setEditSelection( const QgsFeatureIds &fids );

    void setEditSelection( const QModelIndex& index, const QItemSelectionModel::SelectionFlags& command );

    virtual void selectAll() override;

    void repaintRequested( const QModelIndexList& indexes );
    void repaintRequested();

  private slots:
    void editSelectionChanged( const QItemSelection& deselected, const QItemSelection& selected );

  private:
    void selectRow( const QModelIndex &index, bool anchor );

    QgsFeatureListModel *mModel;
    QItemSelectionModel* mCurrentEditSelectionModel;
    QgsFeatureSelectionModel* mFeatureSelectionModel;
    QgsIFeatureSelectionManager* mFeatureSelectionManager;
    QgsFeatureListViewDelegate* mItemDelegate;
    bool mEditSelectionDrag; // Is set to true when the user initiated a left button click over an edit button and still keeps pressing /**< TODO */
    int mRowAnchor;
    QItemSelectionModel::SelectionFlags mCtrlDragSelectionFlag;
};

#endif