qgsunitselectionwidget.h

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/***************************************************************************
    qgsunitselectionwidget.h
    -------------------
    begin                : Mar 24, 2014
    copyright            : (C) 2014 Sandro Mani
    email                : smani@sourcepole.ch
 
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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 QGSUNITSELECTIONWIDGET_H
#define QGSUNITSELECTIONWIDGET_H
 
#include "ui_qgsmapunitscalewidgetbase.h"
#include "ui_qgsunitselectionwidget.h"
 
#include "qgis_gui.h"
#include "qgis_sip.h"
#include "qgsmapunitscale.h"
#include "qgspanelwidget.h"
#include "qgsunittypes.h"
 
#include <QDialog>
#include <QWidget>
 
class QgsMapCanvas;

class GUI_EXPORT QgsMapUnitScaleWidget : public QgsPanelWidget, private Ui::QgsMapUnitScaleWidgetBase
{
    Q_OBJECT
    Q_PROPERTY( QgsMapUnitScale mapUnitScale READ mapUnitScale WRITE setMapUnitScale NOTIFY mapUnitScaleChanged )
 
  public:
    QgsMapUnitScaleWidget( QWidget *parent SIP_TRANSFERTHIS = nullptr );

    QgsMapUnitScale mapUnitScale() const;

    void setMapUnitScale( const QgsMapUnitScale &scale );

    void setMapCanvas( QgsMapCanvas *canvas );
 
  signals:

    void mapUnitScaleChanged( const QgsMapUnitScale &scale );
 
  private slots:
    void configureMinComboBox();
    void configureMaxComboBox();
    void settingsChanged();
 
  private:
    bool mBlockSignals = true;
};

class GUI_EXPORT QgsMapUnitScaleDialog : public QDialog
{
    Q_OBJECT
    Q_PROPERTY( QgsMapUnitScale mapUnitScale READ getMapUnitScale WRITE setMapUnitScale )
 
  public:
    QgsMapUnitScaleDialog( QWidget *parent SIP_TRANSFERTHIS = nullptr );

    QgsMapUnitScale getMapUnitScale() const;

    void setMapUnitScale( const QgsMapUnitScale &scale );

    void setMapCanvas( QgsMapCanvas *canvas );
 
  private slots:
 
    void showHelp();
 
 
  private:
    QgsMapUnitScaleWidget *mWidget = nullptr;
};

class GUI_EXPORT QgsUnitSelectionWidget : public QWidget, private Ui::QgsUnitSelectionWidget
{
    Q_OBJECT
 
  public:
    QgsUnitSelectionWidget( QWidget *parent SIP_TRANSFERTHIS = nullptr );

    void setUnits( const QStringList &units, int mapUnitIdx );

    void setUnits( const QgsUnitTypes::RenderUnitList &units );

    int getUnit() const { return mUnitCombo->currentIndex(); }

    Qgis::RenderUnit unit() const;

    void setUnit( int unitIndex ) SIP_PYNAME( setUnitIndex );

    void setUnit( Qgis::RenderUnit unit );

    QgsMapUnitScale getMapUnitScale() const { return mMapUnitScale; }

    void setMapUnitScale( const QgsMapUnitScale &scale ) { mMapUnitScale = scale; }

    void setMapCanvas( QgsMapCanvas *canvas );

    bool showMapScaleButton() const;

    void setShowMapScaleButton( bool show );
 
  signals:

    void changed();
 
  private slots:
    void showDialog();
    void toggleUnitRangeButton();
    void widgetChanged( const QgsMapUnitScale &scale );
 
  private:
    QgsMapUnitScale mMapUnitScale;
    int mMapUnitIdx;
    QgsMapCanvas *mCanvas = nullptr;
    bool mShowMapScaleButton = true;
};
 
#endif // QGSUNITSELECTIONWIDGET_H