15 #ifndef QGSDIAGRAMRENDERERV2_H
16 #define QGSDIAGRAMRENDERERV2_H
23 #include <QDomDocument>
120 , scaleByArea( true )
121 , angleOffset( 90 * 16 )
122 , scaleBasedVisibility( false )
123 , minScaleDenominator( -1 )
124 , maxScaleDenominator( -1 )
193 virtual QString rendererName()
const = 0;
232 static int dpiPaintDevice(
const QPainter* );
290 void setLowerValue(
double val ) { mInterpolationSettings.lowerValue = val; }
291 double lowerValue()
const {
return mInterpolationSettings.lowerValue; }
293 void setUpperValue(
double val ) { mInterpolationSettings.upperValue = val; }
294 double upperValue()
const {
return mInterpolationSettings.upperValue; }
326 #endif // QGSDIAGRAMRENDERERV2_H
void setClassificationAttributeIsExpression(bool isExpression)
double minimumSize
Scale diagrams smaller than mMinimumSize to mMinimumSize.
void setClassificationAttributeExpression(const QString &expression)
double minScaleDenominator
virtual QList< QgsLayerTreeModelLegendNode * > legendItems(QgsLayerTreeLayer *nodeLayer) const
Returns list of legend nodes for the diagram.
Renders the diagrams for all features with the same settings.
QList< QString > categoryAttributes
virtual QList< QString > diagramAttributes() const =0
Returns attribute indices needed for diagram rendering.
bool classificationAttributeIsExpression
QgsDiagram * diagram() const
A layer of spacial entites.
unsigned int placementFlags
bool scaleBasedVisibility
virtual QList< QgsDiagramSettings > diagramSettings() const =0
Returns list with all diagram settings in the renderer.
Container of fields for a vector layer.
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
Returns diagram settings for a feature.
virtual QSizeF diagramSize(const QgsFeature &features, const QgsRenderContext &c)=0
Returns size of the diagram (in painter units) or an invalid size in case of error.
Perform transforms between map coordinates and device coordinates.
virtual void writeXML(QDomElement &layerElem, QDomDocument &doc, const QgsVectorLayer *layer) const =0
DiagramOrientation diagramOrientation
double lowerValue() const
const QgsMapToPixel * xform
QList< QString > diagramAttributes() const override
Returns attribute indices needed for diagram rendering.
void setDiagramSettings(const QgsDiagramSettings &s)
QString classificationAttributeExpression
void setLowerValue(double val)
DiagramOrientation
Orientation of histogram.
QgsDiagramRendererV2 * renderer
QString rendererName() const override
Base class for all diagram types.
void setUpperSize(QSizeF s)
QString rendererName() const override
int classificationAttribute() const
Contains information about the context of a rendering operation.
double maxScaleDenominator
bool classificationAttributeIsExpression() const
virtual void readXML(const QDomElement &elem, const QgsVectorLayer *layer)=0
virtual QgsDiagramRendererV2 * clone() const =0
Returns new instance that is equivalent to this one.
The QgsLegendRendererItem class is abstract interface for legend items returned from QgsMapLayerLegen...
QList< QString > categoryLabels
void setClassificationAttribute(int index)
int classificationAttribute
Index of the classification attribute.
void setDiagramSettings(const QgsDiagramSettings &s)
QString classificationAttributeExpression() const
Represents a vector layer which manages a vector based data sets.
QList< QColor > categoryColors
double upperValue() const
QgsDiagram * mDiagram
Reference to the object that does the real diagram rendering.
void setLowerSize(QSizeF s)
const QgsCoordinateTransform * ct
LabelPlacementMethod labelPlacementMethod
Layer tree node points to a map layer.
void setUpperValue(double val)