qgscompositionconverter.h

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/***************************************************************************
  qgscompositionconverter.h - Convert  a QGIS 2.x composition to a layout

 ---------------------
 begin                : 13.12.2017
 copyright            : (C) 2017 by Alessandro Pasotti
 email                : elpaso at itopen dot it
 ***************************************************************************
 *                                                                         *
 *   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 QGSCOMPOSITIONCONVERTER_H
#define QGSCOMPOSITIONCONVERTER_H


#include <QDomDocument>
#include <QDomElement>

#include "qgis.h"
#include "qgis_sip.h"

#define SIP_NO_FILE

#include "qgspropertycollection.h"

class QgsPrintLayout;
class QgsLayoutItem;
class QgsLayoutObject;
class QgsReadWriteContext;
class QgsProperty;
class QgsPropertyCollection;

class QgsLayoutItemLabel;
class QgsLayoutItemShape;
class QgsLayoutItemPicture;
class QgsLayoutItemPolygon;
class QgsLayoutItemPolyline;
class QgsLayoutItemMap;
class QgsLayoutItemScaleBar;
class QgsLayoutItemLegend;
class QgsLayoutItemHtml;
class QgsLayoutItemAttributeTable;


class CORE_EXPORT QgsCompositionConverter
{
  public:

    enum DataDefinedProperty
    {
      NoProperty = 0, 
      AllProperties, 
      TestProperty, 
      //composer page properties
      PresetPaperSize, 
      PaperWidth, 
      PaperHeight, 
      NumPages, 
      PaperOrientation, 
      //general composer item properties
      PageNumber, 
      PositionX, 
      PositionY, 
      ItemWidth, 
      ItemHeight, 
      ItemRotation, 
      Transparency, 
      Opacity, 
      BlendMode, 
      ExcludeFromExports, 
      FrameColor, 
      BackgroundColor, 
      //composer map
      MapRotation, 
      MapScale, 
      MapXMin, 
      MapYMin, 
      MapXMax, 
      MapYMax, 
      MapAtlasMargin, 
      MapLayers, 
      MapStylePreset, 
      //composer picture
      PictureSource, 
      PictureSvgBackgroundColor, 
      PictureSvgStrokeColor, 
      PictureSvgStrokeWidth, 
      //html item
      SourceUrl, 
      //legend item
      LegendTitle, 
      LegendColumnCount, 
      //scalebar item
      ScalebarFillColor, 
      ScalebarFillColor2, 
      ScalebarLineColor, 
      ScalebarLineWidth, 
    };

    enum MarkerMode
    {
      DefaultMarker,
      NoMarker,
      SVGMarker
    };


    static std::unique_ptr<QgsPrintLayout> createLayoutFromCompositionXml( const QDomElement &composerElement,
        QgsProject *project );


    static QList<QgsLayoutObject *> addItemsFromCompositionXml( QgsPrintLayout *layout,
        const QDomElement &parentElement,
        QPointF *position = nullptr,
        bool pasteInPlace = false );

    static bool isCompositionTemplate( const QDomDocument &document );

    static QDomDocument convertCompositionTemplate( const QDomDocument
        &document, QgsProject *project );


  private:


    static QgsPropertiesDefinition sPropertyDefinitions;


    static bool readLabelXml( QgsLayoutItemLabel *layoutItem,
                              const QDomElement &itemElem,
                              const QgsProject *project );

    static bool readShapeXml( QgsLayoutItemShape *layoutItem,
                              const QDomElement &itemElem,
                              const QgsProject *project );

    static bool readPictureXml( QgsLayoutItemPicture *layoutItem,
                                const QDomElement &itemElem,
                                const QgsProject *project,
                                const QgsStringMap &mapId2Uuid );

    template <class T, class T2> static bool readPolyXml( T *layoutItem,
        const QDomElement &itemElem,
        const QgsProject *project );

    static bool readArrowXml( QgsLayoutItemPolyline *layoutItem,
                              const QDomElement &itemElem,
                              const QgsProject *project );

    static bool readMapXml( QgsLayoutItemMap *layoutItem,
                            const QDomElement &itemElem,
                            const QgsProject *project,
                            QgsStringMap &mapId2Uuid );

    static bool readScaleBarXml( QgsLayoutItemScaleBar *layoutItem,
                                 const QDomElement &itemElem,
                                 const QgsProject *project,
                                 const QgsStringMap &mapId2Uuid );

    static bool readLegendXml( QgsLayoutItemLegend *layoutItem,
                               const QDomElement &itemElem,
                               const QgsProject *project,
                               const QgsStringMap &mapId2Uuid );

    static bool readAtlasXml( QgsLayoutAtlas *atlasItem,
                              const QDomElement &itemElem,
                              const QgsProject *project );

    static bool readHtmlXml( QgsLayoutItemHtml *layoutItem,
                             const QDomElement &itemElem,
                             const QgsProject *project );

    static bool readTableXml( QgsLayoutItemAttributeTable *layoutItem,
                              const QDomElement &itemElem,
                              const QgsProject *project );

    static bool readOldComposerObjectXml( QgsLayoutObject *layoutItem, const QDomElement &itemElem );

    static void readOldDataDefinedPropertyMap( const QDomElement &itemElem,
        QgsPropertyCollection &dataDefinedProperties );

    static QgsProperty readOldDataDefinedProperty( const DataDefinedProperty property, const QDomElement &ddElem );

    static void initPropertyDefinitions();

    static QgsPropertiesDefinition propertyDefinitions();

    static bool readXml( QgsLayoutItem *layoutItem, const QDomElement &itemElem );

    static void adjustPos( QgsPrintLayout *layout, QgsLayoutItem *layoutItem, QPointF *position, bool &pasteInPlace, int zOrderOffset, QPointF &pasteShiftPos, int &pageNumber );

    static void restoreGeneralComposeItemProperties( QgsLayoutItem *layoutItem, const QDomElement &itemElem );

    static QRectF itemPosition( QgsLayoutItem *layoutItem, const QDomElement &itemElem );

    static QPointF minPointFromXml( const QDomElement &elem );

};

#endif // QGSCOMPOSITIONCONVERTER_H