QGIS API Documentation 3.32.0-Lima (311a8cb8a6)
qgspointclusterrendererwidget.h
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1/***************************************************************************
2 qgspointclusterrendererwidget.h
3 -------------------------------
4 begin : February 2016
5 copyright : (C) 2016 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18#ifndef QGSPOINTCLUSTERRENDERERWIDGET_H
19#define QGSPOINTCLUSTERRENDERERWIDGET_H
20
21#include "ui_qgspointclusterrendererwidgetbase.h"
22#include "qgis_sip.h"
23#include "qgsrendererwidget.h"
25#include "qgis_gui.h"
26
28
36class GUI_EXPORT QgsPointClusterRendererWidget: public QgsRendererWidget, public QgsExpressionContextGenerator, private Ui::QgsPointClusterRendererWidgetBase
37{
38 Q_OBJECT
39
40 public:
41
49 static QgsRendererWidget *create( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ) SIP_FACTORY;
50
58
60
61 QgsFeatureRenderer *renderer() override;
62 void setContext( const QgsSymbolWidgetContext &context ) override;
63
65
66 private:
67 std::unique_ptr< QgsPointClusterRenderer > mRenderer;
68
69 void blockAllSignals( bool block );
70 void setupBlankUi( const QString &layerName );
71
72 private slots:
73
74 void mRendererComboBox_currentIndexChanged( int index );
75 void mDistanceSpinBox_valueChanged( double d );
76 void mDistanceUnitWidget_changed();
77 void mRendererSettingsButton_clicked();
78 void centerSymbolChanged();
79 void updateRendererFromWidget();
80};
81
82#endif // QGSPOINTCLUSTERRENDERERWIDGET_H
Abstract interface for generating an expression context.
virtual QgsExpressionContext createExpressionContext() const =0
This method needs to be reimplemented in all classes which implement this interface and return an exp...
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
A widget which allows configuration of the properties for a QgsPointClusterRenderer.
~QgsPointClusterRendererWidget() override
A renderer that automatically clusters points with the same geographic position.
Base class for renderer settings widgets.
virtual void setContext(const QgsSymbolWidgetContext &context)
Sets the context in which the renderer widget is shown, e.g., the associated map canvas and expressio...
virtual QgsFeatureRenderer * renderer()=0
Returns pointer to the renderer (no transfer of ownership)
Contains settings which reflect the context in which a symbol (or renderer) widget is shown,...
Represents a vector layer which manages a vector based data sets.
#define SIP_FACTORY
Definition: qgis_sip.h:76