Legend.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 Legend.h
 
  \brief It provides an implementation for generating a legend for a layer.
 */
 
#ifndef __TERRALIB_QT_WIDGETS_INTERNAL_LEGEND_H
#define __TERRALIB_QT_WIDGETS_INTERNAL_LEGEND_H
 
// TerraLib
#include "../Config.h"
#include "terralib/qt/widgets/colorbar/ColorBar.h"
#include "terralib/color/ColorBar.h"
#include "../../../color/RGBAColor.h"
 
// Qt
#include <QtGui/QDialog>
#include "ui/ui_Legend.h"
 
 
namespace te
{
  namespace da
  {
    class DataSource;
    class DataSourceTransactor;
    class DataSetType;
  }
 
  namespace color { class ColorBar; }
  namespace map { class LegendItem; }
 
  namespace qt
  {
    namespace widgets
    {
      // Forward declarations
      class LayerItem;
 
      class TEQTWIDGETSEXPORT Legend : public QDialog, public Ui_LegendDialog
      {
        Q_OBJECT
 
        public:
          Legend(te::qt::widgets::LayerItem* layerItem, QWidget* parent = 0);
 
          const std::vector<te::map::LegendItem*>& getLegend() const;
 
          size_t getNumberOfValuesNotGrouped() const;
 
        protected:
          void closeEvent(QCloseEvent* e);
 
        private slots:
          void typeComboBoxActivated(int index);
          void applyPushButtonClicked();
          void legendTableItemChanged(QTableWidgetItem*);
          void okPushButtonClicked();
          void cancelPushButtonClicked();
          void helpPushButtonClicked();
 
        private:
          void setTableContents();
         
        private:
          te::qt::widgets::LayerItem* m_layerItem;
 
          te::da::DataSourceTransactor* m_t;
          te::da::DataSetType* m_dataSetType;
 
          std::vector<te::map::LegendItem*> m_legend;
          te::color::ColorBar* m_colorBar;
          std::vector<te::color::RGBAColor> m_legendColors;
          size_t m_numValuesNotGrouped;
 
          std::map<int, std::string> m_changedItemLabel;
      };
    }   // end namespace widgets
  }     // end namespace qt
}       // endnamespace te
 
#endif  // __TERRALIB_QT_WIDGETS_INTERNAL_LEGEND_H