qgsprojectionselectiondialog.h

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/***************************************************************************
                          qgsgenericprojectionselector.h
                Set user defined projection using projection selector widget
                             -------------------
    begin                : May 28, 2004
    copyright            : (C) 2004 by Gary E.Sherman
    email                : sherman at mrcc.com
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef QGSGENERICPROJECTIONSELECTOR_H
#define QGSGENERICPROJECTIONSELECTOR_H
#include "ui_qgsgenericprojectionselectorbase.h"
 
#include "qgis_gui.h"
#include "qgis_sip.h"
#include "qgscoordinatereferencesystem.h"
#include "qgsguiutils.h"
 
#include <QDialog>
#include <QSet>
 
class QDialogButtonBox;
class QgsRectangle;

class GUI_EXPORT QgsCrsSelectionWidget : public QgsPanelWidget, private Ui::QgsGenericProjectionSelectorBase
{
    Q_OBJECT
  public:
    QgsCrsSelectionWidget(
      QWidget *parent SIP_TRANSFERTHIS = nullptr,
      QgsCoordinateReferenceSystemProxyModel::Filters filters = QgsCoordinateReferenceSystemProxyModel::FilterHorizontal | QgsCoordinateReferenceSystemProxyModel::FilterCompound
    );
 
    ~QgsCrsSelectionWidget() override;

    QgsCoordinateReferenceSystem crs() const;

    void setMessage( const QString &message );

    void setShowNoCrs( bool show );

    bool showNoCrs() const;

    void setNotSetText( const QString &text, const QString &description = QString() );

    bool hasValidSelection() const;

    QgsCoordinateReferenceSystemProxyModel::Filters filters() const;

    void setFilters( QgsCoordinateReferenceSystemProxyModel::Filters filters );

    void setAllowTopocentricCrs( bool allow );

    void setPreviewRect( const QgsRectangle &rect );
 
  public slots:

    void setCrs( const QgsCoordinateReferenceSystem &crs );

    void setOgcWmsCrsFilter( const QSet<QString> &crsFilter );
 
  signals:

    void crsChanged();

    void crsDoubleClicked( const QgsCoordinateReferenceSystem &crs );

    void hasValidSelectionChanged( bool isValid );
 
  private:
    enum class CrsType
    {
      Predefined,  
      Custom,      
      Topocentric, 
    };
 
    QString mNotSetText;
    bool mShowNoCrsOption = false;
    bool mDeferredInvalidCrsSet = false;
    bool mAllowTopocentricCrs = true;
    int mBlockSignals = 0;
};
 

class GUI_EXPORT QgsProjectionSelectionDialog : public QDialog
{
    Q_OBJECT
  public:
    QgsProjectionSelectionDialog(
      QWidget *parent SIP_TRANSFERTHIS = nullptr,
      Qt::WindowFlags fl = QgsGuiUtils::ModalDialogFlags,
      QgsCoordinateReferenceSystemProxyModel::Filters filters = QgsCoordinateReferenceSystemProxyModel::FilterHorizontal | QgsCoordinateReferenceSystemProxyModel::FilterCompound
    );

    QgsCoordinateReferenceSystem crs() const;

    void setMessage( const QString &message );

    void showNoCrsForLayerMessage();

    void setShowNoProjection( bool show );

    bool showNoProjection() const;

    void setNotSetText( const QString &text, const QString &description = QString() );

    void setRequireValidSelection();

    bool hasValidSelection() const;

    QgsCoordinateReferenceSystemProxyModel::Filters filters() const;

    void setFilters( QgsCoordinateReferenceSystemProxyModel::Filters filters );

    void setAllowTopocentricCrs( bool allow );
 
  public slots:

    void setCrs( const QgsCoordinateReferenceSystem &crs );

    void setOgcWmsCrsFilter( const QSet<QString> &crsFilter );
 
  private slots:
 
    void showHelp();
 
  private:
    QDialogButtonBox *mButtonBox = nullptr;
    QgsCrsSelectionWidget *mCrsWidget = nullptr;
 
    bool mRequireValidSelection = false;
};
 
#endif // #ifndef QGSLAYERCRSSELECTOR_H