QGIS API Documentation  2.18.3-Las Palmas (77b8c3d)
Public Member Functions | List of all members
QgsRasterLayerRenderer::Feedback Class Reference

Specific internal feedback class to provide preview of raster layer rendering. More...

#include <qgsrasterlayerrenderer.h>

Inheritance diagram for QgsRasterLayerRenderer::Feedback:
Inheritance graph
[legend]

Public Member Functions

 Feedback (QgsRasterLayerRenderer *r)
 Create feedback object based on our layer renderer. More...
 
virtual void onNewData () override
 when notified of new data in data provider it launches a preview draw of the raster More...
 
- Public Member Functions inherited from QgsRasterBlockFeedback
 QgsRasterBlockFeedback (QObject *parent=nullptr)
 Construct a new raster block feedback object. More...
 
bool isPreviewOnly () const
 Whether the raster provider should return only data that are already available without waiting for full result. More...
 
bool renderPartialOutput () const
 Whether our painter is drawing to a temporary image used just by this layer. More...
 
void setPreviewOnly (bool preview)
 set flag whether the block request is for preview purposes only More...
 
void setRenderPartialOutput (bool enable)
 Set whether our painter is drawing to a temporary image used just by this layer. More...
 
- Public Member Functions inherited from QgsFeedback
 QgsFeedback (QObject *parent=nullptr)
 Construct a feedback object. More...
 
virtual ~QgsFeedback ()
 
void cancel ()
 Tells the internal routines that the current operation should be cancelled. This should be run by the main thread. More...
 
bool isCancelled () const
 Tells whether the operation has been cancelled already. 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
 

Additional Inherited Members

- Signals inherited from QgsFeedback
void cancelled ()
 Internal routines can connect to this signal if they use event loop. 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 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 inherited from QObject
QByteArray normalizeSignalSlot (const char *signalSlot)
 
- Properties inherited from QObject
 objectName
 

Detailed Description

Specific internal feedback class to provide preview of raster layer rendering.

Note
added in 2.18
not available in Python bindings

Definition at line 65 of file qgsrasterlayerrenderer.h.

Constructor & Destructor Documentation

QgsRasterLayerRenderer::Feedback::Feedback ( QgsRasterLayerRenderer r)
explicit

Create feedback object based on our layer renderer.

Definition at line 227 of file qgsrasterlayerrenderer.cpp.

Member Function Documentation

void QgsRasterLayerRenderer::Feedback::onNewData ( )
overridevirtual

when notified of new data in data provider it launches a preview draw of the raster

Reimplemented from QgsRasterBlockFeedback.

Definition at line 234 of file qgsrasterlayerrenderer.cpp.


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