QGIS API Documentation  3.20.0-Odense (decaadbb31)
qgsmaplayerproxymodel.h
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1 /***************************************************************************
2  qgsmaplayerproxymodel.h
3  --------------------------------------
4  Date : 01.04.2014
5  Copyright : (C) 2014 Denis Rouzaud
6  Email : [email protected]
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 
16 #ifndef QGSMAPLAYERPROXYMODEL_H
17 #define QGSMAPLAYERPROXYMODEL_H
18 
19 #include <QSortFilterProxyModel>
20 #include <QStringList>
21 
22 #include "qgis_core.h"
23 #include "qgis_sip.h"
24 
25 class QgsMapLayerModel;
26 class QgsMapLayer;
27 
33 class CORE_EXPORT QgsMapLayerProxyModel : public QSortFilterProxyModel
34 {
35  Q_OBJECT
36 
37  Q_PROPERTY( QgsMapLayerProxyModel::Filters filters READ filters WRITE setFilters )
38  Q_PROPERTY( QList<QgsMapLayer *> exceptedLayerList READ exceptedLayerList WRITE setExceptedLayerList )
39  Q_PROPERTY( QStringList exceptedLayerIds READ exceptedLayerIds WRITE setExceptedLayerIds )
40 
41  public:
42  enum Filter
43  {
45  NoGeometry = 2,
46  PointLayer = 4,
47  LineLayer = 8,
48  PolygonLayer = 16,
49  HasGeometry = PointLayer | LineLayer | PolygonLayer,
50  VectorLayer = NoGeometry | HasGeometry,
52  WritableLayer = 64,
53  MeshLayer = 128,
57  };
58  Q_DECLARE_FLAGS( Filters, Filter )
59  Q_FLAG( Filters )
60 
61 
65  explicit QgsMapLayerProxyModel( QObject *parent SIP_TRANSFERTHIS = nullptr );
66 
70  QgsMapLayerModel *sourceLayerModel() const { return mModel; }
71 
79  QgsMapLayerProxyModel *setFilters( QgsMapLayerProxyModel::Filters filters );
80 
88  const Filters &filters() const { return mFilters; }
89 
94  static bool layerMatchesFilters( const QgsMapLayer *layer, const Filters &filters );
95 
107  Q_DECL_DEPRECATED void setLayerWhitelist( const QList<QgsMapLayer *> &layers ) SIP_DEPRECATED;
108 
120  void setLayerAllowlist( const QList<QgsMapLayer *> &layers );
121 
132  Q_DECL_DEPRECATED QList<QgsMapLayer *> layerWhitelist() SIP_DEPRECATED {return mLayerAllowlist;}
133 
144  QList<QgsMapLayer *> layerAllowlist() {return mLayerAllowlist;}
145 
152  void setExceptedLayerList( const QList<QgsMapLayer *> &exceptList );
153 
160  QList<QgsMapLayer *> exceptedLayerList() {return mExceptList;}
161 
167  void setExceptedLayerIds( const QStringList &ids );
168 
174  QStringList exceptedLayerIds() const;
175 
181  void setExcludedProviders( const QStringList &providers );
182 
188  QStringList excludedProviders() const { return mExcludedProviders; }
189 
196  QString filterString() const { return mFilterString; }
197 
203  bool acceptsLayer( QgsMapLayer *layer ) const;
204 
205  bool filterAcceptsRow( int source_row, const QModelIndex &source_parent ) const override;
206  bool lessThan( const QModelIndex &left, const QModelIndex &right ) const override;
207 
208  public slots:
209 
217  void setFilterString( const QString &filter );
218 
219  private:
220  Filters mFilters;
221  QList<QgsMapLayer *> mExceptList;
222  QList<QgsMapLayer *> mLayerAllowlist;
223  QgsMapLayerModel *mModel = nullptr;
224  QStringList mExcludedProviders;
225  QString mFilterString;
226 };
227 
228 Q_DECLARE_OPERATORS_FOR_FLAGS( QgsMapLayerProxyModel::Filters )
229 
230 #endif // QGSMAPLAYERPROXYMODEL_H
The QgsMapLayerModel class is a model to display layers in widgets.
The QgsMapLayerProxyModel class provides an easy to use model to display the list of layers in widget...
Q_DECL_DEPRECATED QList< QgsMapLayer * > layerWhitelist()
Returns the list of layers which are excluded from the model.
QgsMapLayerModel * sourceLayerModel() const
layerModel returns the QgsMapLayerModel used in this QSortFilterProxyModel
QList< QgsMapLayer * > layerAllowlist()
Returns the list of layers which are excluded from the model.
const Filters & filters() const
Returns the filter flags which affect how layers are filtered within the model.
QList< QgsMapLayer * > exceptedLayerList()
Returns the blocklist of layers which are excluded from the model.
QStringList excludedProviders() const
Returns the blocklist of data providers which are excluded from the model.
QString filterString() const
Returns the current filter string, if set.
Base class for all map layer types.
Definition: qgsmaplayer.h:70
@ PointCloudLayer
Added in 3.18.
@ MeshLayer
Added in 3.2.
@ VectorTileLayer
Added in 3.14.
#define SIP_DEPRECATED
Definition: qgis_sip.h:106
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53
Q_DECLARE_OPERATORS_FOR_FLAGS(QgsField::ConfigurationFlags) CORE_EXPORT QDataStream &operator<<(QDataStream &out
Writes the field to stream out. QGIS version compatibility is not guaranteed.