SelectionTool.h

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/*  Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.

    This file is part of the TerraLib - a Framework for building GIS enabled applications.

    TerraLib is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License,
    or (at your option) any later version.

    TerraLib is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with TerraLib. See COPYING. If not, write to
    TerraLib Team at <terralib-team@terralib.org>.
 */

/*!
  \file SelectionTool.h

  \brief An example of MapDisplay Tool. The only purpose of this tool is to show how you can implement a new tool. Do not consider it as a final application.
*/

#ifndef __TERRALIB_EXAMPLES_QT_TOOLS_INTERNAL_TOOLS_SELECTION_TOOL_H
#define __TERRALIB_EXAMPLES_QT_TOOLS_INTERNAL_TOOLS_SELECTION_TOOL_H

// TerraLib
#include <terralib/qt/widgets/tools/AbstractTool.h>

//STL
#include <vector>

// Forward declarations
namespace te
{
  namespace gm
  {
    class Geometry;
  }

  namespace map
  {
    class DataSetLayer;
  }

  namespace qt
  {
    namespace widgets
    {
      class MapDisplay;
    }
  }
}

class SelectionTool : public te::qt::widgets::AbstractTool
{
  Q_OBJECT

  public:

    SelectionTool(te::qt::widgets::MapDisplay* display, te::map::DataSetLayer* layer, QObject* parent = 0);

    ~SelectionTool();

    /** @name AbstractTool Methods
      *  Methods related with tool behavior.
      */
    //@{

    bool mouseReleaseEvent(QMouseEvent* e);

    //@}

  private:
    
    void drawGeometries();

  private slots:

    void onExtentChanged();

  private:

    te::map::DataSetLayer* m_layer;
    std::vector<te::gm::Geometry*> m_geoms;
};

#endif  // __TERRALIB_EXAMPLES_QT_TOOLS_INTERNAL_TOOLS_SELECTION_TOOL_H