qgsdataitemguiprovider.h

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/***************************************************************************
  qgsdataitemguiprovider.h
  --------------------------------------
  Date                 : October 2018
  Copyright            : (C) 2018 by Nyall Dawson
  Email                : nyall dot dawson at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   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 QGSDATAITEMGUIPROVIDER_H
#define QGSDATAITEMGUIPROVIDER_H

#include "qgis_gui.h"
#include "qgis_sip.h"
#include <QList>
#include <QWidget>
#include <QMimeData>
#include <QString>
#include <QMenu>

class QgsDataItem;
class QgsMessageBar;
class QgsLayerItem;

class GUI_EXPORT QgsDataItemGuiContext
{
  public:

    QgsDataItemGuiContext() = default;

    QgsMessageBar *messageBar() const;

    void setMessageBar( QgsMessageBar *bar );

  private:

    QgsMessageBar *mMessageBar = nullptr;
};

Q_DECLARE_METATYPE( QgsDataItemGuiContext );

class GUI_EXPORT QgsDataItemGuiProvider
{
  public:

    virtual ~QgsDataItemGuiProvider() = default;

    virtual QString name() = 0;

    virtual void populateContextMenu( QgsDataItem *item, QMenu *menu,
                                      const QList<QgsDataItem *> &selectedItems, QgsDataItemGuiContext context );

    virtual bool rename( QgsDataItem *item, const QString &name, QgsDataItemGuiContext context );

    virtual bool deleteLayer( QgsLayerItem *item, QgsDataItemGuiContext context );

    virtual bool handleDoubleClick( QgsDataItem *item, QgsDataItemGuiContext context );

    virtual bool acceptDrop( QgsDataItem *item, QgsDataItemGuiContext context );

    virtual bool handleDrop( QgsDataItem *item, QgsDataItemGuiContext context, const QMimeData *data, Qt::DropAction action );

    virtual QWidget *createParamWidget( QgsDataItem *item, QgsDataItemGuiContext context ) SIP_FACTORY;
};

#endif // QGSDATAITEMGUIPROVIDER_H