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/************************************************************************
* This file has been generated automatically from *
* *
* src/core/symbology/qgsfeaturerenderergenerator.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
class QgsFeatureRendererGenerator
{
%Docstring(signature="appended")
An interface for objects which generate feature renderers for vector
layers.
.. versionadded:: 3.18
%End
%TypeHeaderCode
#include "qgsfeaturerenderergenerator.h"
%End
public:
virtual ~QgsFeatureRendererGenerator();
virtual QString id() const = 0;
%Docstring
Returns a unique ID string identifying the renderer generator.
%End
virtual double level() const;
%Docstring
Returns a double value which dictates the stacking or z order level
associated with the returned renderer.
A value > 0 will always be rendered AFTER the normal renderer for a
vector layer (i.e. the renderer will be drawn on top of the normal
feature renderer), while a value < 0 will always be rendered BEFORE the
normal renderer (i.e. the rendered features will be drawn below the
normal feature renderer).
Since a layer may potentially have multiple extra renderers created by
QgsFeatureRendererGenerator subclasses, the level will always be used to
control the order that these renderers are drawn. A renderer with a
lower :py:func:`~QgsFeatureRendererGenerator.level` return value will
always be drawn before those with a higher
:py:func:`~QgsFeatureRendererGenerator.level` value.
The default implementation returns 1.0, i.e. features will be rendered
ABOVE the normal vector layer renderer.
.. note::
If two QgsFeatureRendererGenerator implementations return the same :py:func:`~QgsFeatureRendererGenerator.level` value, then their
ordering will be unpredictable.
%End
virtual QgsFeatureRenderer *createRenderer() const = 0 /Factory/;
%Docstring
Creates a new feature renderer to use when rendering a vector layer.
Caller takes ownership of the returned renderer.
%End
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/symbology/qgsfeaturerenderergenerator.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
|
