QGIS API Documentation 3.41.0-Master (fda2aa46e9a)
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qgsmapdecoration.h
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1/***************************************************************************
2 qgsmapdecoration.h
3 ----------------
4 begin : April 2017
5 copyright : (C) 2017 by Mathieu Pellerin
6 email : nirvn dot asia 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 QGSMAPDECORATION_H
19#define QGSMAPDECORATION_H
20
21#include "qgis_core.h"
22#include <QString>
23
24class QgsMapSettings;
26
33class CORE_EXPORT QgsMapDecoration
34{
35
36 public:
37
38 QgsMapDecoration() = default;
39
40 virtual ~QgsMapDecoration() = default;
41
45 virtual void render( const QgsMapSettings &mapSettings, QgsRenderContext &context ) = 0;
46
51 const QString displayName() const { return mDisplayName; }
52
58 virtual bool hasFixedMapPosition() const { return false; }
59
60 protected:
61
66 void setDisplayName( const QString &name ) { mDisplayName = name; }
67
68 private:
69
70 QString mDisplayName;
71
72};
73
74#endif //QGSMAPDECORATION_H
Interface for map decorations.
virtual bool hasFixedMapPosition() const
Returns true if the decoration is attached to a fixed map position (e.g grid, layout extent),...
const QString displayName() const
Returns the map decoration display name.
virtual void render(const QgsMapSettings &mapSettings, QgsRenderContext &context)=0
Renders a map decoration.
virtual ~QgsMapDecoration()=default
QgsMapDecoration()=default
void setDisplayName(const QString &name)
Sets the map decoration display name.
The QgsMapSettings class contains configuration for rendering of the map.
Contains information about the context of a rendering operation.