QGIS API Documentation 3.29.0-Master (da8bb1db43)
qgsfeaturelistmodel.h
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1/***************************************************************************
2 qgsfeaturelistmodel.h
3 ---------------------
4 begin : February 2013
5 copyright : (C) 2013 by Matthias Kuhn
6 email : matthias at opengis dot ch
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 QGSATTRIBUTEEDITORMODEL_H
16#define QGSATTRIBUTEEDITORMODEL_H
17
18#include "qgsexpression.h"
19
20#include <QSortFilterProxyModel>
21#include <QVariant>
22#include <QItemSelectionModel>
23#include <QPointer>
24
25#include "qgsfeaturemodel.h"
26#include "qgsfeature.h" // QgsFeatureId
28#include "qgsconditionalstyle.h"
29#include "qgis_gui.h"
30
34
39class GUI_EXPORT QgsFeatureListModel : public QSortFilterProxyModel, public QgsFeatureModel
40{
41 Q_OBJECT
42
43 public:
45 {
46 public:
47
51 FeatureInfo() = default;
52
54 bool isNew = false;
55
57 bool isEdited = false;
58 };
59
60 enum Role
61 {
62 FeatureInfoRole = 0x1000, // Make sure no collisions with roles on QgsAttributeTableModel
63 FeatureRole
64 };
65
66 public:
67
69 explicit QgsFeatureListModel( QgsAttributeTableFilterModel *sourceModel, QObject *parent SIP_TRANSFERTHIS = nullptr );
70
71#ifdef __clang__
72#pragma clang diagnostic push
73#pragma clang diagnostic ignored "-Woverloaded-virtual"
74#endif
75 virtual void setSourceModel( QgsAttributeTableFilterModel *sourceModel );
76#ifdef __clang__
77#pragma clang diagnostic pop
78#endif
79
83 QgsVectorLayerCache *layerCache();
84
85 QVariant data( const QModelIndex &index, int role ) const override;
86 Qt::ItemFlags flags( const QModelIndex &index ) const override;
87
94 void setInjectNull( bool injectNull );
95
101 bool injectNull();
102
103 QgsAttributeTableModel *masterModel();
104
111 bool setDisplayExpression( const QString &expression );
112
117 QString parserErrorString();
118
119 QString displayExpression() const;
120 bool featureByIndex( const QModelIndex &index, QgsFeature &feat );
121
126 QgsFeatureId idxToFid( const QModelIndex &index ) const;
127
132 QModelIndex fidToIdx( QgsFeatureId fid ) const;
133
134 QModelIndex mapToSource( const QModelIndex &proxyIndex ) const override;
135 QModelIndex mapFromSource( const QModelIndex &sourceIndex ) const override;
136
137 virtual QModelIndex mapToMaster( const QModelIndex &proxyIndex ) const;
138 virtual QModelIndex mapFromMaster( const QModelIndex &sourceIndex ) const;
139
140 virtual QItemSelection mapSelectionFromMaster( const QItemSelection &selection ) const;
141 virtual QItemSelection mapSelectionToMaster( const QItemSelection &selection ) const;
142
143 QModelIndex parent( const QModelIndex &child ) const override;
144 int columnCount( const QModelIndex &parent = QModelIndex() ) const override;
145 int rowCount( const QModelIndex &parent = QModelIndex() ) const override;
146
147 QModelIndex fidToIndex( QgsFeatureId fid ) override;
148 QModelIndexList fidToIndexList( QgsFeatureId fid );
149
155 bool sortByDisplayExpression() const;
156
165 void setSortByDisplayExpression( bool sortByDisplayExpression, Qt::SortOrder order = Qt::AscendingOrder );
166
167 public slots:
168
174 Q_DECL_DEPRECATED void onBeginRemoveRows( const QModelIndex &parent, int first, int last );
175
181 Q_DECL_DEPRECATED void onEndRemoveRows( const QModelIndex &parent, int first, int last );
182
188 Q_DECL_DEPRECATED void onBeginInsertRows( const QModelIndex &parent, int first, int last );
189
195 Q_DECL_DEPRECATED void onEndInsertRows( const QModelIndex &parent, int first, int last );
196
197 private slots:
198
199 void conditionalStylesChanged();
200
201 private:
202 mutable QgsExpression mDisplayExpression;
203 QgsAttributeTableFilterModel *mFilterModel = nullptr;
204 QString mParserErrorString;
205 bool mInjectNull = false;
206 mutable QgsExpressionContext mExpressionContext;
207 mutable QMap< QgsFeatureId, QList<QgsConditionalStyle> > mRowStylesMap;
208 bool mSortByDisplayExpression = false;
209 QPointer< QgsVectorLayer > mSourceLayer;
210};
211
213
214#endif // QGSATTRIBUTEEDITORMODEL_H
A model backed by a QgsVectorLayerCache which is able to provide feature/attribute information to a Q...
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
Class for parsing and evaluation of expressions (formerly called "search strings").
virtual QModelIndex fidToIndex(QgsFeatureId fid)=0
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:56
This class caches features of a given QgsVectorLayer.
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53
Q_DECLARE_METATYPE(QgsDatabaseQueryLogEntry)
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
Definition: qgsfeatureid.h:28
FeatureInfo()=default
Constructor for FeatureInfo.