WhereClauseWidget.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/query/WhereClauseWidget.h
 
  \brief This file has the DataSetWidget class.
*/
 
#ifndef __TERRALIB_QT_WIDGETS_QUERY_INTERNAL_WHERECLAUSEWIDGET_H
#define __TERRALIB_QT_WIDGETS_QUERY_INTERNAL_WHERECLAUSEWIDGET_H
 
// TerraLib
#include "../Config.h"
#ifndef Q_MOC_RUN
#include "../../../dataaccess/datasource/DataSource.h"
#include "../../../dataaccess/query/Expression.h"
#include "../../../dataaccess/query/Where.h"
#include "../../../maptools/AbstractLayer.h"
#endif
 
// STL
#include <memory>
#include <map>
#include <set>
 
// Qt
#include <QComboBox>
#include <QWidget>
 
 
namespace Ui { class WhereClauseWidgetForm; }
 
namespace te
{
  namespace qt
  {
    namespace widgets
    {
      struct ExpressionProperty
      {
        /*! \brief Default constructor. */
        ExpressionProperty()
        {
          m_isAttributeCriteria = false;
          m_isSpatialCriteria = false;
          m_isPropertyValue = false;
          m_isValueValue = false;
 
          m_property = "";
          m_operator = "";
          m_value = "";
 
          m_expression = 0;
          m_valuesComboBox = 0;
        }
 
        ~ExpressionProperty()
        {
          delete m_expression;
        }
 
        bool m_isAttributeCriteria;
        bool m_isSpatialCriteria;
 
        bool m_isPropertyValue;
        bool m_isValueValue;
 
        std::string m_property;
        std::string m_operator;
        std::string m_value;
 
        te::da::Expression* m_expression;
 
        QComboBox* m_valuesComboBox;
      };
 
      /*!
        \class WhereClauseWidget
 
        \brief This class is used to define the WHERE object of select operation.
      */
      class TEQTWIDGETSEXPORT WhereClauseWidget : public QWidget
      {
        Q_OBJECT
 
        public:
 
          WhereClauseWidget(QWidget* parent = 0, Qt::WindowFlags f = 0);
 
          ~WhereClauseWidget();
 
          te::da::Where* getWhere();
 
          std::string getWhereString();
 
        public:
 
          void addLayer(te::map::AbstractLayerPtr layer);
 
          void removeLayer(te::map::AbstractLayerPtr layer);
 
          void setDataSource(const te::da::DataSourcePtr& ds);
 
          void setLayerList(std::list<te::map::AbstractLayerPtr>& layerList);
 
          void setFromItems(std::vector<std::pair<std::string, std::string> > vec);
 
          void setAttributeList(const std::vector<std::string>& vec);
 
          void setGeomAttributeList(const std::vector<std::string>& vec, int srid);
 
          void setOperatorsList(const std::vector<std::string>& vec);
 
          void setSpatialOperatorsList(const std::vector<std::string>& vec);
 
          void setConnectorsList(const std::vector<std::string>& vec);
 
          void setCriteriaTabEnabled(int index, bool enable);
 
          void clear();
 
          void resetInterface();
 
          void removeSpatialRestriction();
 
        public slots:
 
          void onAddWhereClausePushButtonClicked();
 
          void onRemoveWhereClausePushButtonClicked();
 
          void onValuePropertyRadioButtonClicked();
 
          void onClearAllPushButtonClicked();
 
          void onRestrictValueComboBoxActivated(QString value);
 
          void onComboBoxActivated(QString value);
 
        signals:
 
          void clausesChanged();
 
        protected:
 
          te::da::Expression* getExpression(const QString& value, const std::string& propName);
 
          void copyCombo(QComboBox* input, QComboBox* output, std::string curValue = "");
 
          QStringList getPropertyValues(std::string propertyName);
 
 
        private:
 
          std::unique_ptr<Ui::WhereClauseWidgetForm> m_ui;
 
          te::da::DataSourcePtr m_ds;
 
          std::vector<std::pair<std::string, std::string> > m_fromItems;
 
          std::map<int, ExpressionProperty*> m_mapExp;
 
          std::map< QComboBox*, std::pair<int, int> > m_comboMap;
 
          QStringList m_connectorsList;
 
          int m_count;
          int m_srid;
      }; 
 
    } // end namespace widgets
  }   // end namespace qt
}     // end namespace te
 
#endif  // __TERRALIB_QT_WIDGETS_QUERY_INTERNAL_WHERECLAUSEWIDGET_H