qgslayoutitemscalebar.h

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/***************************************************************************
                            qgslayoutitemscalebar.h
                            ------------------------
    begin                : November 2017
    copyright            : (C) 2017 by Nyall Dawson
    email                : nyall dot dawson at gmail dot 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 QGSLAYOUTITEMSCALEBAR_H
#define QGSLAYOUTITEMSCALEBAR_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgslayoutitem.h"
#include "scalebar/qgsscalebarsettings.h"
#include "scalebar/qgsscalebarrenderer.h"
#include <QFont>
#include <QPen>
#include <QColor>
 
class QgsLayoutItemMap;
 
class CORE_EXPORT QgsLayoutItemScaleBar: public QgsLayoutItem
{
    Q_OBJECT
 
  public:
 
    QgsLayoutItemScaleBar( QgsLayout *layout );
 
    int type() const override;
    QIcon icon() const override;
 
    static QgsLayoutItemScaleBar *create( QgsLayout *layout ) SIP_FACTORY;
    QgsLayoutSize minimumSize() const override;
 
    int numberOfSegments() const { return mSettings.numberOfSegments(); }
 
    void setNumberOfSegments( int segments );
 
    int numberOfSegmentsLeft() const { return mSettings.numberOfSegmentsLeft(); }
 
    void setNumberOfSegmentsLeft( int segments );
 
    int numberOfSubdivisions()  const { return mSettings.numberOfSubdivisions(); }
 
    void setNumberOfSubdivisions( int subdivisions ) { mSettings.setNumberOfSubdivisions( subdivisions ); }
 
    double subdivisionsHeight() const { return mSettings.subdivisionsHeight(); }
 
    void setSubdivisionsHeight( double height ) { mSettings.setSubdivisionsHeight( height ); }
 
    double unitsPerSegment() const { return mSettings.unitsPerSegment(); }
 
    void setUnitsPerSegment( double units );
 
    QgsScaleBarSettings::SegmentSizeMode segmentSizeMode() const { return mSettings.segmentSizeMode(); }
 
    void setSegmentSizeMode( QgsScaleBarSettings::SegmentSizeMode mode );
 
    double minimumBarWidth() const { return mSettings.minimumBarWidth(); }
 
    void setMinimumBarWidth( double minWidth );
 
    double maximumBarWidth() const { return mSettings.maximumBarWidth(); }
 
    void setMaximumBarWidth( double maxWidth );
 
    double mapUnitsPerScaleBarUnit() const { return mSettings.mapUnitsPerScaleBarUnit(); }
 
    void setMapUnitsPerScaleBarUnit( double units ) { mSettings.setMapUnitsPerScaleBarUnit( units ); }
 
    QString unitLabel() const { return mSettings.unitLabel(); }
 
    void setUnitLabel( const QString &label ) { mSettings.setUnitLabel( label );}
 
    QgsTextFormat textFormat() const;
 
    void setTextFormat( const QgsTextFormat &format );
 
 
    QgsLineSymbol *lineSymbol() const;
 
    void setLineSymbol( QgsLineSymbol *symbol SIP_TRANSFER );
 
    QgsLineSymbol *divisionLineSymbol() const;
 
    void setDivisionLineSymbol( QgsLineSymbol *symbol SIP_TRANSFER );
 
    QgsLineSymbol *subdivisionLineSymbol() const;
 
    void setSubdivisionLineSymbol( QgsLineSymbol *symbol SIP_TRANSFER );
 
    QgsFillSymbol *fillSymbol() const;
 
    void setFillSymbol( QgsFillSymbol *symbol SIP_TRANSFER );
 
    QgsFillSymbol *alternateFillSymbol() const;
 
    void setAlternateFillSymbol( QgsFillSymbol *symbol SIP_TRANSFER );
 
    Q_DECL_DEPRECATED QFont font() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setFont( const QFont &font ) SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED QColor fontColor() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setFontColor( const QColor &color ) SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED QColor fillColor() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setFillColor( const QColor &color ) SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED QColor fillColor2() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setFillColor2( const QColor &color ) SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED QColor lineColor() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setLineColor( const QColor &color ) SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED double lineWidth() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setLineWidth( double width ) SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED QPen pen() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED QBrush brush() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED QBrush brush2() const SIP_DEPRECATED;
 
    double height() const { return mSettings.height(); }
 
    void setHeight( double height ) { mSettings.setHeight( height ); }
 
    void setLinkedMap( QgsLayoutItemMap *map );
 
    QgsLayoutItemMap *linkedMap() const { return mMap; }
 
    double labelBarSpace() const { return mSettings.labelBarSpace(); }
 
    void setLabelBarSpace( double space ) {mSettings.setLabelBarSpace( space );}
 
    double boxContentSpace() const { return mSettings.boxContentSpace(); }
 
    void setBoxContentSpace( double space );
 
    QgsScaleBarSettings::LabelVerticalPlacement labelVerticalPlacement() const { return mSettings.labelVerticalPlacement(); }
 
    void setLabelVerticalPlacement( QgsScaleBarSettings::LabelVerticalPlacement placement );
 
    QgsScaleBarSettings::LabelHorizontalPlacement labelHorizontalPlacement() const { return mSettings.labelHorizontalPlacement(); }
 
    void setLabelHorizontalPlacement( QgsScaleBarSettings::LabelHorizontalPlacement placement );
 
    QgsScaleBarSettings::Alignment alignment() const { return mSettings.alignment(); }
 
    void setAlignment( QgsScaleBarSettings::Alignment alignment );
 
    QgsUnitTypes::DistanceUnit units() const { return mSettings.units(); }
 
    void setUnits( QgsUnitTypes::DistanceUnit units );
 
    Q_DECL_DEPRECATED Qt::PenJoinStyle lineJoinStyle() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setLineJoinStyle( Qt::PenJoinStyle style ) SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED Qt::PenCapStyle lineCapStyle() const SIP_DEPRECATED;
 
    Q_DECL_DEPRECATED void setLineCapStyle( Qt::PenCapStyle style ) SIP_DEPRECATED;
 
    void applyDefaultSettings();
 
    bool applyDefaultRendererSettings( QgsScaleBarRenderer *renderer );
 
    QgsUnitTypes::DistanceUnit guessUnits() const;
 
    void applyDefaultSize( QgsUnitTypes::DistanceUnit units = QgsUnitTypes::DistanceMeters );
 
    void resizeToMinimumWidth();
 
    void setStyle( const QString &name );
 
    QString style() const;
 
    const QgsNumericFormat *numericFormat() const;
 
    void setNumericFormat( QgsNumericFormat *format SIP_TRANSFER );
 
    void update();
 
    void refreshDataDefinedProperty( QgsLayoutObject::DataDefinedProperty property = QgsLayoutObject::AllProperties ) override;
    void finalizeRestoreFromXml() override;
    bool accept( QgsStyleEntityVisitorInterface *visitor ) const override;
    ExportLayerBehavior exportLayerBehavior() const override;
 
  protected:
 
    void draw( QgsLayoutItemRenderContext &context ) override;
    bool writePropertiesToElement( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const override;
    bool readPropertiesFromElement( const QDomElement &element, const QDomDocument &document, const QgsReadWriteContext &context ) override;
 
  private slots:
    void updateScale();
    void disconnectCurrentMap();
 
  private:
 
    QgsLayoutItemMap *mMap = nullptr;
    QString mMapUuid;
 
    QgsScaleBarSettings mSettings;
 
    std::unique_ptr< QgsScaleBarRenderer > mStyle;
 
    double mSegmentMillimeters = 0.0;
 
    void refreshSegmentMillimeters();
 
    double mapWidth() const;
 
    QgsScaleBarRenderer::ScaleBarContext createScaleContext() const;
 
    friend class QgsCompositionConverter;
 
    void refreshUnitsPerSegment( const QgsExpressionContext *context = nullptr );
 
    void refreshNumberOfSegmentsLeft( const QgsExpressionContext *context = nullptr );
 
    void refreshNumberOfSegmentsRight( const QgsExpressionContext *context = nullptr );
 
    void refreshMinimumBarWidth( const QgsExpressionContext *context = nullptr );
 
    void refreshMaximumBarWidth( const QgsExpressionContext *context = nullptr );
};
 
#endif //QGSLAYOUTITEMSCALEBAR_H