PixmapItem.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 terralib/qt/widgets/st/PixmapItem.h

  \brief This file defines a class for a Pixmap Item.
*/

#ifndef __TERRALIB_QT_WIDGETS_SLIDER_INTERNAL_PIXMAP_ITEM_H
#define __TERRALIB_QT_WIDGETS_SLIDER_INTERNAL_PIXMAP_ITEM_H

// TerraLib
#include "AnimationItem.h"
#include "../Config.h"
#include "../../../geometry.h"
#include "../../../datatype.h"

// Qt
#include <QtCore/QAbstractAnimation>
#include <QtCore/QDir>

namespace te
{
  namespace dt
  {
    class DateTimeInstant;
    class TimePeriod;
 }

  namespace qt
  {
    namespace widgets
    {
      class MapDisplay;
      class Animation;

      /*!
        \class This class does not use QPixmap. 
        It uses an array of images already processed to make the animation.
        Therefore, the pixmap() method returns null.

        \brief This class is a dialog for the Pixmap Item.
      */
      class TEQTWIDGETSEXPORT PixmapItem : public AnimationItem
      {
        //Q_OBJECT
        //Q_PROPERTY(QPointF pos READ pos WRITE setPos)

      public:

        /*!
          \brief Empty Constructor.
        */
        PixmapItem();

        /*!
          \brief Constructor
          It constructs a Pixmap Item.
          \param title The pixmap item title.
          \param file The absolute file path name.
          \param display Where the pixmap item is displayed.
        */
        PixmapItem(const QString& title, const QString& file, te::qt::widgets::MapDisplay* display);

       /*!
          \brief Destructor
          It destructs a Pixmap Item.
        */
        virtual ~PixmapItem();

        /*!
          \brief Paint a pixmap item.
        */
        void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*);

        /*!
          \brief Calculate current file.

          \param curTime current time
        */
        void calculateCurrentFile(const unsigned int& curTime); // remover

        /*!
          \brief Draw the current pixmap item.
        */
        void draw();

        /*!
          \brief Create images making reprojection if necessary.
        */
        void createAnimationDataInDisplayProjection();

        void setImagePosition(const QPointF& p, const QRectF& dr);

        /*!
          \brief It gets image rect in device coordinate.
        */
        QRect getRect();

        /*!
          \brief Draw current pixmap item.
          \paran curTime The animation current time.
        */
        void drawForward(const unsigned int& curTime);

        /*!
          \brief Draw current pixmap item.
          \paran curTime The animation current time.
        */
        void erase(const unsigned int& curTime);

        /*!
          \brief Sets the LUT.
          \paran tab The LUT information.
        */
        void setLUT(const std::vector<std::pair<int, QColor> >& tab);

      public:
        QDir m_dir;                           //!< The image data directory.
        size_t  m_nlines;                     //!< number of lines.
        size_t  m_ncols;                      //!< number of colunms.
        float m_undef;                        //!< undef value.
        QVector<QString> m_files;             //!< The input files.
        QVector<QString> m_animationFiles;    //!< The png files in display projection. It contains only the portions to be animated.
        QString          m_currentImageFile;  //!< Image to be displayed on paint event animation.
        QString          m_baseFile;          //!< Base file name.
        QString          m_suffix;            //!< File suffix.
        QRectF           m_imaRect;           //!< Image location.
        std::map<uchar, QColor> m_lut;        //!< LUT
        QPointF          m_imageCenterPos;    //!< Center of the image.
      };
    } // end namespace widgets
  }   // end namespace qt
}     // end namespace te

#endif  // __TERRALIB_QT_WIDGETS_SLIDER_INTERNAL_PIXMAP_ITEM_H