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4da1ce8404
Run clang-tidy modernize-use-override to remove all the redundant virtual keywords from overridden methods, and add some missing overrides. Another benefit is that this has also added the overrides on destructors, which will cause a build failure if a base class is missing a virtual destructor.
142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/***************************************************************************
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qgsquerybuilder.h - query builder
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--------------------------------------
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Date : 2004-11-19
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Copyright : (C) 2004 by Gary E.Sherman
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Email : sherman at mrcc.com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSQUERYBUILDER_H
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#define QGSQUERYBUILDER_H
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#include <map>
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#include "qgis.h"
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#include <vector>
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#include <QStandardItemModel>
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#include <QStandardItem>
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#include <QModelIndex>
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#include "ui_qgsquerybuilderbase.h"
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#include "qgsguiutils.h"
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#include "qgshelp.h"
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#include "qgis_gui.h"
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class QgsVectorLayer;
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/**
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* \ingroup gui
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* \class QgsQueryBuilder
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* \brief Query Builder for layers.
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*
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* The query builder allows interactive creation of a SQL for limiting the
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* features displayed in a vector layer. The fields in the table are
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* displayed and sample values (or all values) can be viewed to aid in
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* constructing the query. A test function returns the number of features that
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* will be returned.
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*
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*/
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class GUI_EXPORT QgsQueryBuilder : public QDialog, private Ui::QgsQueryBuilderBase
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{
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Q_OBJECT
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public:
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/**
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* This constructor is used when the query builder is called from the
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* vector layer properties dialog
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* \param layer existing vector layer
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* \param parent Parent widget
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* \param fl dialog flags
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*/
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QgsQueryBuilder( QgsVectorLayer *layer, QWidget *parent SIP_TRANSFERTHIS = nullptr,
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Qt::WindowFlags fl = QgsGuiUtils::ModalDialogFlags );
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~QgsQueryBuilder() override;
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void showEvent( QShowEvent *event ) override;
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QString sql();
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void setSql( const QString &sqlStatement );
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public slots:
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void accept() override;
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void reject() override;
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void clear();
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/**
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* Test the constructed sql statement to see if the vector layer data provider likes it.
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* The number of rows that would be returned is displayed in a message box.
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* The test uses a "select count(*) from ..." query to test the SQL
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* statement.
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*/
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void test();
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void setDatasourceDescription( const QString &uri );
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private slots:
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void btnEqual_clicked();
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void btnLessThan_clicked();
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void btnGreaterThan_clicked();
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void btnPct_clicked();
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void btnIn_clicked();
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void btnNotIn_clicked();
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void btnLike_clicked();
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void btnILike_clicked();
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void lstFields_clicked( const QModelIndex &index );
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void lstFields_doubleClicked( const QModelIndex &index );
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void lstValues_doubleClicked( const QModelIndex &index );
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void btnLessEqual_clicked();
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void btnGreaterEqual_clicked();
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void btnNotEqual_clicked();
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void btnAnd_clicked();
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void btnNot_clicked();
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void btnOr_clicked();
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/**
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* Get all distinct values for the field. Values are inserted
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* into the value list box
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*/
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void btnGetAllValues_clicked();
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/**
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* Get sample distinct values for the selected field. The sample size is
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* limited to an arbitrary value (currently set to 25). The values
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* are inserted into the values list box.
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*/
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void btnSampleValues_clicked();
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private:
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/**
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* Populate the field list for the selected table
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*/
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void populateFields();
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void showHelp();
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/**
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* Setup models for listviews
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*/
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void setupGuiViews();
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void setupLstFieldsModel();
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void fillValues( int idx, int limit );
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// private members
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//! Model for fields ListView
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QStandardItemModel *mModelFields = nullptr;
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//! Model for values ListView
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QStandardItemModel *mModelValues = nullptr;
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//! Previous field row to delete model
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int mPreviousFieldRow;
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//! vector layer
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QgsVectorLayer *mLayer = nullptr;
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//! original subset string
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QString mOrigSubsetString;
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};
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#endif //QGSQUERYBUILDER_H
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