QGIS API Documentation 3.35.0-Master (274c3da7543)
Loading...
Searching...
No Matches
qgsrasterrendererregistry.h
Go to the documentation of this file.
1/***************************************************************************
2 qgsrasterrendererregistry.h
3 ---------------------------
4 begin : January 2012
5 copyright : (C) 2012 by Marco Hugentobler
6 email : marco at sourcepole dot ch
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 QGSRASTERRENDERERREGISTRY_H
19#define QGSRASTERRENDERERREGISTRY_H
20
21
22#define SIP_NO_FILE
23
24
25
26#include "qgis_core.h"
27#include "qgis.h"
28#include <QHash>
29#include <QString>
30
31class QDomElement;
33class QgsRasterLayer;
37class QgsRectangle;
38
39typedef QgsRasterRenderer *( *QgsRasterRendererCreateFunc )( const QDomElement &, QgsRasterInterface *input );
40typedef QgsRasterRendererWidget *( *QgsRasterRendererWidgetCreateFunc )( QgsRasterLayer *, const QgsRectangle &extent );
41
47{
48 QgsRasterRendererRegistryEntry( const QString &name, const QString &visibleName, QgsRasterRendererCreateFunc rendererFunction,
49 QgsRasterRendererWidgetCreateFunc widgetFunction );
50
55 QString name;
56 QString visibleName; //visible (and translatable) name
57 QIcon icon();
58 QgsRasterRendererCreateFunc rendererCreateFunction = nullptr ; //pointer to create function
59 QgsRasterRendererWidgetCreateFunc widgetCreateFunction = nullptr ; //pointer to create function for renderer widget
60};
61
72{
73 public:
74
76
77 void insert( const QgsRasterRendererRegistryEntry &entry );
78 void insertWidgetFunction( const QString &rendererName, QgsRasterRendererWidgetCreateFunc func );
79 bool rendererData( const QString &rendererName, QgsRasterRendererRegistryEntry &data ) const;
80 QStringList renderersList() const;
81 QList< QgsRasterRendererRegistryEntry > entries() const;
82
87 QgsRasterRenderer *defaultRendererForDrawingStyle( Qgis::RasterDrawingStyle drawingStyle, QgsRasterDataProvider *provider ) const;
88
89 private:
90 QHash< QString, QgsRasterRendererRegistryEntry > mEntries;
91 QStringList mSortedEntries;
92
93 //read min/max values from
94 bool minMaxValuesForBand( int band, QgsRasterDataProvider *provider, double &minValue, double &maxValue ) const;
95};
96
97#endif // QGSRASTERRENDERERREGISTRY_H
RasterDrawingStyle
Raster drawing styles.
Definition qgis.h:3598
Base class for raster data providers.
Base class for processing filters like renderers, reprojector, resampler etc.
Represents a raster layer.
Registry for raster renderers.
Abstract base class for widgets which configure a QgsRasterRenderer.
Raster renderer pipe that applies colors to a raster.
A rectangle specified with double values.
QgsRasterRendererWidget *(* QgsRasterRendererWidgetCreateFunc)(QgsRasterLayer *, const QgsRectangle &extent)
QgsRasterRenderer *(* QgsRasterRendererCreateFunc)(const QDomElement &, QgsRasterInterface *input)
Registry for raster renderer entries.
QgsRasterRendererRegistryEntry()=default
Constructor for QgsRasterRendererRegistryEntry.