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QgsValueRelationWidgetWrapper Class Reference

Wraps a value relation widget. More...

#include <qgsvaluerelationwidgetwrapper.h>

Inheritance diagram for QgsValueRelationWidgetWrapper:
Inheritance graph
[legend]

Public Types

typedef QVector
< ValueRelationItem
ValueRelationCache
 
typedef QPair< QVariant, QStringValueRelationItem
 

Public Slots

void setValue (const QVariant &value) override
 
- Public Slots inherited from QgsEditorWidgetWrapper
void setFeature (const QgsFeature &feature) override
 Will be called when the feature changes. More...
 
virtual void setValue (const QVariant &value)=0
 Is called, when the value of the widget needs to be changed. More...
 
- Public Slots inherited from QgsWidgetWrapper
virtual void setFeature (const QgsFeature &feature)=0
 Is called, when the value of the widget needs to be changed. More...
 

Public Member Functions

 QgsValueRelationWidgetWrapper (QgsVectorLayer *vl, int fieldIdx, QWidget *editor=0, QWidget *parent=0)
 
QVariant value () override
 Will be used to access the widget's value. More...
 
- Public Member Functions inherited from QgsEditorWidgetWrapper
 QgsEditorWidgetWrapper (QgsVectorLayer *vl, int fieldIdx, QWidget *editor=0, QWidget *parent=0)
 Create a new widget wrapper. More...
 
QVariant defaultValue ()
 Access the default value of the field. More...
 
QgsField field ()
 Access the field. More...
 
int fieldIdx ()
 Access the field index. More...
 
void setEnabled (bool enabled) override
 Is used to enable or disable the edit functionality of the managed widget. More...
 
- Public Member Functions inherited from QgsWidgetWrapper
 QgsWidgetWrapper (QgsVectorLayer *vl, QWidget *editor=0, QWidget *parent=0)
 Create a new widget wrapper. More...
 
QVariant config (QString key, QVariant defaultVal=QVariant())
 Use this inside your overriden classes to access the configuration. More...
 
const QgsEditorWidgetConfig config ()
 Returns the whole config. More...
 
const QgsAttributeEditorContextcontext ()
 Returns information about the context in which this widget is shown. More...
 
QgsVectorLayerlayer ()
 Access the QgsVectorLayer, you are working on. More...
 
void setConfig (const QgsEditorWidgetConfig &config)
 Will set the config of this wrapper to the specified config. More...
 
void setContext (const QgsAttributeEditorContext &context)
 Set the context in which this widget is shown. More...
 
QWidgetwidget ()
 Access the widget managed by this wrapper. More...
 
template<class T >
T * widget ()
 Access the widget managed by this wrapper and cast it to a given type Example: QPushButton* pb = wrapper->widget<QPushButton*>();. More...
 
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
 
 QObject (QObject *parent, const char *name)
 
virtual  ~QObject ()
 
bool blockSignals (bool block)
 
QObjectchild (const char *objName, const char *inheritsClass, bool recursiveSearch) const
 
const QObjectList & children () const
 
const char * className () const
 
bool connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const
 
void deleteLater ()
 
void destroyed (QObject *obj)
 
bool disconnect (const QObject *receiver, const char *method)
 
bool disconnect (const char *signal, const QObject *receiver, const char *method)
 
void dumpObjectInfo ()
 
void dumpObjectTree ()
 
QList< QByteArraydynamicPropertyNames () const
 
virtual bool event (QEvent *e)
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
findChild (const QString &name) const
 
QList< T > findChildren (const QRegExp &regExp) const
 
QList< T > findChildren (const QString &name) const
 
bool inherits (const char *className) const
 
void insertChild (QObject *object)
 
void installEventFilter (QObject *filterObj)
 
bool isA (const char *className) const
 
bool isWidgetType () const
 
void killTimer (int id)
 
virtual const QMetaObjectmetaObject () const
 
void moveToThread (QThread *targetThread)
 
const char * name () const
 
const char * name (const char *defaultName) const
 
QString objectName () const
 
QObjectparent () const
 
QVariant property (const char *name) const
 
void removeChild (QObject *object)
 
void removeEventFilter (QObject *obj)
 
void setName (const char *name)
 
void setObjectName (const QString &name)
 
void setParent (QObject *parent)
 
bool setProperty (const char *name, const QVariant &value)
 
bool signalsBlocked () const
 
int startTimer (int interval)
 
QThreadthread () const
 

Protected Member Functions

QWidgetcreateWidget (QWidget *parent) override
 This method should create a new widget with the provided parent. More...
 
void initWidget (QWidget *editor) override
 This method should initialize the editor widget with runtime data. More...
 
- Protected Member Functions inherited from QObject
bool checkConnectArgs (const char *signal, const QObject *object, const char *method)
 
virtual void childEvent (QChildEvent *event)
 
virtual void connectNotify (const char *signal)
 
virtual void customEvent (QEvent *event)
 
virtual void disconnectNotify (const char *signal)
 
int receivers (const char *signal) const
 
QObjectsender () const
 
int senderSignalIndex () const
 
virtual void timerEvent (QTimerEvent *event)
 

Static Protected Member Functions

static ValueRelationCache createCache (const QgsEditorWidgetConfig &config)
 
- Static Protected Member Functions inherited from QObject
QByteArray normalizeSignalSlot (const char *signalSlot)
 

Friends

class QgsValueRelationWidgetFactory
 

Additional Inherited Members

- Signals inherited from QgsEditorWidgetWrapper
void valueChanged (const QVariant &value)
 Emit this signal, whenever the value changed. More...
 
- Static Public Member Functions inherited from QgsEditorWidgetWrapper
static QgsEditorWidgetWrapperfromWidget (QWidget *widget)
 Will return a wrapper for a given widget. More...
 
- Static Public Member Functions inherited from QgsWidgetWrapper
static QgsWidgetWrapperfromWidget (QWidget *widget)
 Will return a wrapper for a given widget. More...
 
- Static Public Member Functions inherited from QObject
bool connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
 
bool connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
 
bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
 
bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
 
QString tr (const char *sourceText, const char *disambiguation, int n)
 
QString trUtf8 (const char *sourceText, const char *disambiguation, int n)
 
- Protected Slots inherited from QgsEditorWidgetWrapper
void valueChanged (const QString &value)
 If you emit to this slot in your implementation, an appropriate change notification will be broadcasted. More...
 
void valueChanged (int value)
 If you emit to this slot in your implementation, an appropriate change notification will be broadcasted. More...
 
void valueChanged (double value)
 If you emit to this slot in your implementation, an appropriate change notification will be broadcasted. More...
 
void valueChanged (bool value)
 If you emit to this slot in your implementation, an appropriate change notification will be broadcasted. More...
 
void valueChanged (qlonglong value)
 If you emit to this slot in your implementation, an appropriate change notification will be broadcasted. More...
 
void valueChanged ()
 Will call the value() method to determine the emitted value. More...
 
- Properties inherited from QObject
 objectName
 

Detailed Description

Wraps a value relation widget.

This widget will offer a combobox with values from another layer referenced by a foreign key (a constraint may be set but is not required on data level). This is useful for having value lists on a separate layer containing codes and their translation to human readable names.

Options:

Definition at line 47 of file qgsvaluerelationwidgetwrapper.h.

Member Typedef Documentation

Definition at line 53 of file qgsvaluerelationwidgetwrapper.h.

Definition at line 52 of file qgsvaluerelationwidgetwrapper.h.

Constructor & Destructor Documentation

QgsValueRelationWidgetWrapper::QgsValueRelationWidgetWrapper ( QgsVectorLayer vl,
int  fieldIdx,
QWidget editor = 0,
QWidget parent = 0 
)
explicit

Definition at line 52 of file qgsvaluerelationwidgetwrapper.cpp.

Member Function Documentation

QgsValueRelationWidgetWrapper::ValueRelationCache QgsValueRelationWidgetWrapper::createCache ( const QgsEditorWidgetConfig config)
staticprotected

Definition at line 204 of file qgsvaluerelationwidgetwrapper.cpp.

QWidget * QgsValueRelationWidgetWrapper::createWidget ( QWidget parent)
overrideprotectedvirtual

This method should create a new widget with the provided parent.

This will only be called if the form did not already provide a widget, so it is not guaranteed to be called! You should not do initialisation stuff, which also has to be done for custom editor widgets inside this method. Things like filling comboboxes and assigning other data which will also be used to make widgets on forms created in the QtDesigner usable should be assigned in initWidget(QWidget*).

Parameters
parentYou should set this parent on the created widget.
Returns
A new widget

Implements QgsWidgetWrapper.

Definition at line 103 of file qgsvaluerelationwidgetwrapper.cpp.

void QgsValueRelationWidgetWrapper::initWidget ( QWidget editor)
overrideprotectedvirtual

This method should initialize the editor widget with runtime data.

Fill your comboboxes here.

Parameters
editorThe widget which will represent this attribute editor in a form.

Reimplemented from QgsWidgetWrapper.

Definition at line 118 of file qgsvaluerelationwidgetwrapper.cpp.

void QgsValueRelationWidgetWrapper::setValue ( const QVariant value)
overrideslot

Definition at line 167 of file qgsvaluerelationwidgetwrapper.cpp.

QVariant QgsValueRelationWidgetWrapper::value ( )
overridevirtual

Will be used to access the widget's value.

Read the value from the widget and return it properly formatted to be saved in the attribute.

If an invalid variant is returned this will be interpreted as no change. Be sure to return a NULL QVariant if it should be set to NULL.

Returns
The current value the widget represents

Implements QgsEditorWidgetWrapper.

Definition at line 62 of file qgsvaluerelationwidgetwrapper.cpp.

Friends And Related Function Documentation

friend class QgsValueRelationWidgetFactory
friend

Definition at line 79 of file qgsvaluerelationwidgetwrapper.h.


The documentation for this class was generated from the following files: