qgslabellinesettings.h

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/***************************************************************************
  qgslabellinesettings.h
  --------------------------
  Date                 : August 2020
  Copyright            : (C) 2020 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 QGSLABELLINESETTINGS_H
#define QGSLABELLINESETTINGS_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgslabeling.h"
#include "qgsunittypes.h"
#include "qgsmapunitscale.h"
#include <QString>
 
class QgsPropertyCollection;
class QgsExpressionContext;
 
class CORE_EXPORT QgsLabelLineSettings
{
  public:
 
    enum class DirectionSymbolPlacement : int
    {
      SymbolLeftRight, 
      SymbolAbove, 
      SymbolBelow 
    };
 
    enum class AnchorType : int
    {
      HintOnly, 
      Strict, 
    };
 
    enum class AnchorClipping : int
    {
      UseVisiblePartsOfLine, 
      UseEntireLine, 
    };
 
    QgsLabeling::LinePlacementFlags placementFlags() const { return mPlacementFlags; }
 
    void setPlacementFlags( QgsLabeling::LinePlacementFlags flags ) { mPlacementFlags = flags; }
 
    bool mergeLines() const { return mMergeLines; }
 
    void setMergeLines( bool merge ) { mMergeLines = merge; }
 
    void updateDataDefinedProperties( const QgsPropertyCollection &properties, QgsExpressionContext &context );
 
    bool addDirectionSymbol() const { return mAddDirectionSymbol; }
 
    void setAddDirectionSymbol( bool enabled ) { mAddDirectionSymbol = enabled; }
 
    QString leftDirectionSymbol() const { return mLeftDirectionSymbol; }
 
    void setLeftDirectionSymbol( const QString &symbol ) { mLeftDirectionSymbol = symbol; }
 
    QString rightDirectionSymbol() const { return mRightDirectionSymbol; }
 
    void setRightDirectionSymbol( const QString &symbol ) { mRightDirectionSymbol = symbol; }
 
    bool reverseDirectionSymbol() const { return mReverseDirectionSymbol; }
 
    void setReverseDirectionSymbol( bool reversed ) { mReverseDirectionSymbol = reversed; }
 
    DirectionSymbolPlacement directionSymbolPlacement() const { return mPlaceDirectionSymbol; }
 
    void setDirectionSymbolPlacement( DirectionSymbolPlacement placement ) { mPlaceDirectionSymbol = placement; }
 
    double overrunDistance() const { return mOverrunDistance; }
 
    void setOverrunDistance( double distance ) {  mOverrunDistance = distance; }
 
    QgsUnitTypes::RenderUnit overrunDistanceUnit() const {return mOverrunDistanceUnit; }
 
    void setOverrunDistanceUnit( const QgsUnitTypes::RenderUnit &unit ) { mOverrunDistanceUnit = unit;}
 
    QgsMapUnitScale overrunDistanceMapUnitScale() const { return mOverrunDistanceMapUnitScale; }
 
    void setOverrunDistanceMapUnitScale( const QgsMapUnitScale &scale ) { mOverrunDistanceMapUnitScale = scale; }
 
    double lineAnchorPercent() const { return mLineAnchorPercent; }
 
    void setLineAnchorPercent( double percent ) { mLineAnchorPercent = percent; }
 
    AnchorType anchorType() const { return mAnchorType; }
 
    void setAnchorType( AnchorType type ) { mAnchorType = type; }
 
    AnchorClipping anchorClipping() const { return mAnchorClipping; }
 
    void setAnchorClipping( AnchorClipping clipping ) { mAnchorClipping = clipping; }
 
  private:
    QgsLabeling::LinePlacementFlags mPlacementFlags = QgsLabeling::LinePlacementFlag::AboveLine | QgsLabeling::LinePlacementFlag::MapOrientation;
    bool mMergeLines = false;
    bool mAddDirectionSymbol = false;
    QString mLeftDirectionSymbol = QString( '<' );
    QString mRightDirectionSymbol = QString( '>' );
    bool mReverseDirectionSymbol = false;
    DirectionSymbolPlacement mPlaceDirectionSymbol = DirectionSymbolPlacement::SymbolLeftRight;
    double mOverrunDistance = 0;
    QgsUnitTypes::RenderUnit mOverrunDistanceUnit = QgsUnitTypes::RenderMillimeters;
    QgsMapUnitScale mOverrunDistanceMapUnitScale;
 
    double mLineAnchorPercent = 0.5;
    AnchorType mAnchorType = AnchorType::HintOnly;
    AnchorClipping mAnchorClipping = AnchorClipping::UseVisiblePartsOfLine;
};
 
#endif // QGSLABELLINESETTINGS_H