[FEATURE] Add QgsFeatureListComboBox with live-filter-capabilities

python/core/core_auto.sip

@@ -311,6 +311,7 @@
 %Include qgsfieldmodel.sip
 %Include qgsfieldproxymodel.sip
 %Include qgsfiledownloader.sip
+%Include qgsfeaturefiltermodel.sip
 %Include qgsgeometryvalidator.sip
 %Include qgsgml.sip
 %Include qgsgmlschema.sip

python/core/qgsfeaturefiltermodel.sip

@@ -0,0 +1,118 @@
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgsfeaturefiltermodel.h                                     *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/
+
+
+
+
+class QgsFeatureFilterModel : QAbstractItemModel
+{
+%Docstring
+ Provides a list of features based on filter conditions.
+ Features are fetched asynchronously.
+%End
+
+%TypeHeaderCode
+#include "qgsfeaturefiltermodel.h"
+%End
+  public:
+    enum Role
+    {
+      IdentifierValueRole,
+      ValueRole
+    };
+
+    QgsFeatureFilterModel( QObject *parent = 0 );
+    ~QgsFeatureFilterModel();
+
+    QgsVectorLayer *sourceLayer() const;
+%Docstring
+ :rtype: QgsVectorLayer
+%End
+    void setSourceLayer( QgsVectorLayer *sourceLayer );
+
+    QString displayExpression() const;
+%Docstring
+ :rtype: str
+%End
+    void setDisplayExpression( const QString &displayExpression );
+
+    QString filterValue() const;
+%Docstring
+ :rtype: str
+%End
+    void setFilterValue( const QString &filterValue );
+
+    virtual QModelIndex index( int row, int column, const QModelIndex &parent ) const;
+    virtual QModelIndex parent( const QModelIndex &child ) const;
+    virtual int rowCount( const QModelIndex &parent ) const;
+    virtual int columnCount( const QModelIndex &parent ) const;
+    virtual QVariant data( const QModelIndex &index, int role ) const;
+
+    QString filterExpression() const;
+%Docstring
+ An additional filter expression to apply, next to the filterValue.
+ Can be used for spatial filtering etc.
+ :rtype: str
+%End
+
+    void setFilterExpression( const QString &filterExpression );
+%Docstring
+ An additional filter expression to apply, next to the filterValue.
+ Can be used for spatial filtering etc.
+%End
+
+    bool isLoading() const;
+%Docstring
+ :rtype: bool
+%End
+
+    QString identifierField() const;
+%Docstring
+ :rtype: str
+%End
+    void setIdentifierField( const QString &identifierField );
+
+    QVariant extraIdentifierValue() const;
+%Docstring
+ :rtype: QVariant
+%End
+    void setExtraIdentifierValue( const QVariant &extraIdentifierValue );
+
+    int extraIdentifierValueIndex() const;
+%Docstring
+ :rtype: int
+%End
+
+    bool extraValueDoesNotExist() const;
+%Docstring
+ :rtype: bool
+%End
+
+  signals:
+    void sourceLayerChanged();
+    void displayExpressionChanged();
+    void filterValueChanged();
+    void filterExpressionChanged();
+    void isLoadingChanged();
+    void identifierFieldChanged();
+    void filterJobCompleted();
+    void extraIdentifierValueChanged();
+    void extraIdentifierValueIndexChanged( int index );
+    void extraValueDoesNotExistChanged();
+    void beginUpdate();
+    void endUpdate();
+
+};
+
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgsfeaturefiltermodel.h                                     *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/

python/gui/gui_auto.sip

@@ -108,6 +108,7 @@
 %Include qgsfeatureselectiondlg.sip
 %Include qgsfieldcombobox.sip
 %Include qgsfieldexpressionwidget.sip
+%Include qgsfeaturelistcombobox.sip
 %Include qgsfieldvalidator.sip
 %Include qgsfieldvalueslineedit.sip
 %Include qgsfilewidget.sip

python/gui/qgsfeaturelistcombobox.sip

@@ -0,0 +1,104 @@
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/gui/qgsfeaturelistcombobox.h                                     *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/
+
+
+
+
+class QgsFeatureListComboBox : QComboBox
+{
+%Docstring
+*************************************************************************
+qgsfieldlistcombobox.h - QgsFieldListComboBox
+
+---------------------
+begin                : 10.3.2017
+copyright            : (C) 2017 by Matthias Kuhn
+email                : matthias@opengis.ch
+**************************************************************************
+                                                                         *
+   This program is free software; you can redistribute it and/or modify  *
+   it under the terms of the GNU General Public License as published by  *
+   the Free Software Foundation; either version 2 of the License, or     *
+   (at your option) any later version.                                   *
+                                                                         *
+**************************************************************************
+%End
+
+%TypeHeaderCode
+#include "qgsfeaturelistcombobox.h"
+%End
+  public:
+    QgsFeatureListComboBox( QWidget *parent = 0 );
+
+    QgsVectorLayer *sourceLayer() const;
+%Docstring
+ :rtype: QgsVectorLayer
+%End
+    void setSourceLayer( QgsVectorLayer *sourceLayer );
+
+    QString displayExpression() const;
+%Docstring
+ :rtype: str
+%End
+    void setDisplayExpression( const QString &displayExpression );
+
+    QString filterExpression() const;
+%Docstring
+ :rtype: str
+%End
+    void setFilterExpression( const QString &filterExpression );
+
+    QVariant identifierValue() const;
+%Docstring
+ :rtype: QVariant
+%End
+    void setIdentifierValue( const QVariant &identifierValue );
+
+    QgsFeatureRequest currentFeatureRequest() const;
+%Docstring
+ :rtype: QgsFeatureRequest
+%End
+
+    bool allowNull() const;
+%Docstring
+ :rtype: bool
+%End
+    void setAllowNull( bool allowNull );
+
+    QString identifierField() const;
+%Docstring
+ :rtype: str
+%End
+    void setIdentifierField( const QString &identifierField );
+
+    QModelIndex currentModelIndex() const;
+%Docstring
+ :rtype: QModelIndex
+%End
+
+    virtual void focusOutEvent( QFocusEvent *event );
+
+    virtual void keyPressEvent( QKeyEvent *event );
+
+  signals:
+    void sourceLayerChanged();
+    void displayExpressionChanged();
+    void filterExpressionChanged();
+    void identifierValueChanged();
+    void identifierFieldChanged();
+    void allowNullChanged();
+
+};
+
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/gui/qgsfeaturelistcombobox.h                                     *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/

src/core/CMakeLists.txt

@@ -175,6 +175,7 @@ SET(QGIS_CORE_SRCS
   qgsfeaturesink.cpp
   qgsfeaturesource.cpp
   qgsfeaturestore.cpp
+  qgsfeaturefiltermodel.cpp
   qgsfield.cpp
   qgsfieldconstraints.cpp
   qgsfieldformatter.cpp
@@ -590,6 +591,8 @@ SET(QGIS_CORE_MOC_HDRS
   qgsfieldmodel.h
   qgsfieldproxymodel.h
   qgsfiledownloader.h
+  qgsfeaturefiltermodel.h
+  qgsfeaturefiltermodel_p.h
   qgsgeometryvalidator.h
   qgsgml.h
   qgsgmlschema.h