QGIS API Documentation  3.21.0-Master (5b68dc587e)
qgsembeddedsymbolrendererwidget.h
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1 /***************************************************************************
2  qgsembeddedsymbolrendererwidget.h
3  ---------------------
4  begin : March 2021
5  copyright : (C) 2021 by Nyall Dawson
6  email : nyall dot dawson at gmail dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 #ifndef QGSEMBEDDEDSYMBOLRENDERERWIDGET_H
16 #define QGSEMBEDDEDSYMBOLRENDERERWIDGET_H
17 
18 #include "ui_qgsembeddedsymbolrendererwidgetbase.h"
19 #include "qgis_sip.h"
20 #include "qgsrendererwidget.h"
21 #include "qgis_gui.h"
22 
23 class QMenu;
25 
32 class GUI_EXPORT QgsEmbeddedSymbolRendererWidget : public QgsRendererWidget, public QgsExpressionContextGenerator, private Ui::QgsEmbeddedSymbolRendererWidgetBase
33 {
34  Q_OBJECT
35 
36  public:
37 
44  static QgsRendererWidget *create( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ) SIP_FACTORY;
45 
54 
55  QgsFeatureRenderer *renderer() override;
56  void setContext( const QgsSymbolWidgetContext &context ) override;
58 
59  private:
61  std::unique_ptr<QgsEmbeddedSymbolRenderer> mRenderer;
62 
63 };
64 
65 
66 #endif // QGSEMBEDDEDSYMBOLRENDERERWIDGET_H
A widget used represent options of a QgsEmbeddedSymbolRenderer.
A vector feature renderer which uses embedded feature symbology to render per-feature symbols.
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...
Base class for renderer settings widgets.
virtual QgsFeatureRenderer * renderer()=0
Returns pointer to the renderer (no transfer of ownership)
virtual void setContext(const QgsSymbolWidgetContext &context)
Sets the context in which the renderer widget is shown, e.g., the associated map canvas and expressio...
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