15 #ifndef QGSDIAGRAMRENDERERV2_H 16 #define QGSDIAGRAMRENDERERV2_H 18 #include "qgis_core.h" 25 #include <QDomDocument> 79 MapOrientation = 1 << 4,
179 double zIndex()
const {
return mZIndex; }
278 void readXml(
const QDomElement &elem );
284 void writeXml( QDomElement &layerElem, QDomDocument &doc )
const;
333 LinePlacementFlags mPlacementFlags = OnLine;
343 double mZIndex = 0.0;
346 bool mObstacle =
false;
349 double mDistance = 0.0;
355 bool mShowAll =
true;
360 static void initPropertyDefinitions();
431 double penWidth = 0.0;
434 double barWidth = 5.0;
437 double opacity = 1.0;
439 bool scaleByArea =
true;
445 double rotationOffset = 270;
447 bool scaleBasedVisibility =
false;
455 double maximumScale = 0;
463 double minimumScale = 0;
466 double minimumSize = 0.0;
469 void readXml(
const QDomElement &elem );
471 void writeXml( QDomElement &rendererElem, QDomDocument &doc )
const;
514 if ( sipCpp->rendererName() == QStringLiteral(
"SingleCategory" ) )
515 sipType = sipType_QgsSingleCategoryDiagramRenderer;
516 else if ( sipCpp->rendererName() == QStringLiteral(
"LinearlyInterpolated" ) )
517 sipType = sipType_QgsLinearlyInterpolatedDiagramRenderer;
539 virtual QString rendererName()
const = 0;
542 virtual QList<QString> diagramAttributes()
const = 0;
560 virtual QList<QgsDiagramSettings> diagramSettings()
const = 0;
574 virtual void writeXml( QDomElement &layerElem, QDomDocument &doc,
const QgsReadWriteContext &context )
const = 0;
616 void convertSizeToMapUnits( QSizeF &size,
const QgsRenderContext &context )
const;
619 static int dpiPaintDevice(
const QPainter * );
633 void _writeXml( QDomElement &rendererElem, QDomDocument &doc,
const QgsReadWriteContext &context )
const;
639 bool mShowAttributeLegend =
true;
655 QString
rendererName()
const override {
return QStringLiteral(
"SingleCategory" ); }
661 QList<QgsDiagramSettings> diagramSettings()
const override;
664 void writeXml( QDomElement &layerElem, QDomDocument &doc,
const QgsReadWriteContext &context )
const override;
690 QList<QgsDiagramSettings> diagramSettings()
const override;
694 QList<QString> diagramAttributes()
const override;
698 QString
rendererName()
const override {
return QStringLiteral(
"LinearlyInterpolated" ); }
700 void setLowerValue(
double val ) { mInterpolationSettings.lowerValue = val; }
701 double lowerValue()
const {
return mInterpolationSettings.lowerValue; }
703 void setUpperValue(
double val ) { mInterpolationSettings.upperValue = val; }
704 double upperValue()
const {
return mInterpolationSettings.upperValue; }
706 void setLowerSize( QSizeF s ) { mInterpolationSettings.lowerSize = s; }
707 QSizeF
lowerSize()
const {
return mInterpolationSettings.lowerSize; }
709 void setUpperSize( QSizeF s ) { mInterpolationSettings.upperSize = s; }
710 QSizeF
upperSize()
const {
return mInterpolationSettings.upperSize; }
733 void writeXml( QDomElement &layerElem, QDomDocument &doc,
const QgsReadWriteContext &context )
const override;
765 #endif // QGSDIAGRAMRENDERERV2_H void setClassificationAttributeIsExpression(bool isExpression)
The class is used as a container of context for various read/write operations on other objects...
y-coordinate data defined diagram position
Property
Data definable properties.
void setClassificationAttributeExpression(const QString &expression)
bool isObstacle() const
Returns whether the feature associated with a diagram acts as an obstacle for other labels or diagram...
Diagram background color.
QgsCoordinateTransform coordinateTransform() const
Returns the coordinate transform associated with the layer, or an invalid transform if no transformat...
Renders the diagrams for all features with the same settings.
QList< QString > categoryAttributes
bool classificationAttributeIsExpression
QgsDiagramRenderer * renderer()
Returns the diagram renderer associated with the layer.
int priority() const
Returns the diagram priority.
A set of features which influence the labeling process.
QgsPropertyCollection & dataDefinedProperties()
Returns a reference to the diagram's property collection, used for data defined overrides.
Whether the diagram should always be shown, even if it overlaps other diagrams/labels.
void setZIndex(double index)
Sets the diagram z-index.
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
Z-index for diagram ordering.
QString classificationAttributeExpression() const
bool classificationAttributeIsExpression() const
void setDataDefinedProperties(const QgsPropertyCollection &collection)
Sets the diagram's property collection, used for data defined overrides.
Perform transforms between map coordinates and device coordinates.
Diagram priority (between 0 and 10)
QgsDiagram * diagram() const
QList< QString > diagramAttributes() const override
Returns attribute indices needed for diagram rendering.
void setShowAllDiagrams(bool showAllDiagrams)
Sets whether the layer should show all diagrams, including overlapping diagrams.
void setDiagramSettings(const QgsDiagramSettings &s)
Evaluates and returns the diagram settings relating to a diagram for a specific feature.
void setAttributeLegend(bool enabled)
Sets whether the renderer will show legend items for diagram attributes.
QString classificationAttributeExpression
double lowerValue() const
double upperValue() const
void setLowerValue(double val)
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
QString classificationField() const
Returns the field name used for interpolating the diagram size.
QgsMapUnitScale sizeScale
Diagram size unit scale.
DiagramOrientation
Orientation of histogram.
void setClassificationField(const QString &field)
Sets the field name used for interpolating the diagram size.
x-coordinate data defined diagram position
Whether diagram features act as obstacles for other diagrams/labels.
double zIndex() const
Returns the diagram z-index.
std::unique_ptr< QgsDiagram > mDiagram
Reference to the object that does the real diagram rendering.
const QgsPropertyCollection & dataDefinedProperties() const
Returns a reference to the diagram's property collection, used for data defined overrides.
QString rendererName() const override
Base class for all diagram types.
QMap< int, QgsPropertyDefinition > QgsPropertiesDefinition
Definition of available properties.
LinePlacementFlags linePlacementFlags() const
Returns the diagram placement flags.
const QgsDiagramRenderer * renderer() const
Returns the diagram renderer associated with the layer.
void setUpperSize(QSizeF s)
Stores the settings for rendering of all diagrams for a layer.
QString rendererName() const override
void setPriority(int value)
Sets the diagram priority.
Placement placement() const
Returns the diagram placement.
double distance() const
Returns the distance between the diagram and the feature (in mm).
Additional diagram settings for interpolated size rendering.
Contains information about the context of a rendering operation.
bool attributeLegend() const
Returns true if renderer will show legend items for diagram attributes.
Distance to diagram from feature.
void setLinePlacementFlags(LinePlacementFlags flags)
Sets the the diagram placement flags.
Struct for storing maximum and minimum scales for measurements in map units.
QString classificationField
Name of the field for classification.
#define SIP_CONVERT_TO_SUBCLASS_CODE(code)
void setPlacement(Placement value)
Sets the diagram placement.
The QgsLegendRendererItem class is abstract interface for legend items returned from QgsMapLayerLegen...
A grouped map of multiple QgsProperty objects, each referenced by a integer key value.
QList< QString > categoryLabels
Whether to show the diagram.
LinePlacementFlag
Line placement flags for controlling line based placements.
QgsMapUnitScale lineSizeScale
Line unit scale.
void setDiagramSettings(const QgsDiagramSettings &s)
Represents a vector layer which manages a vector based data sets.
Object that keeps configuration of appearance of marker symbol's data-defined size in legend...
QList< QColor > categoryColors
void setLowerSize(QSizeF s)
Stores the settings for rendering a single diagram.
RenderUnit
Rendering size units.
bool showAllDiagrams() const
Returns whether the layer should show all diagrams, including overlapping diagrams.
Layer tree node points to a map layer.
void setIsObstacle(bool isObstacle)
Sets whether the feature associated with a diagram acts as an obstacle for other labels or diagrams...
void setDistance(double distance)
Sets the distance between the diagram and the feature.
void setUpperValue(double val)