Marble::StackedTileLoader

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Marble::StackedTileLoader Class Reference

#include <StackedTileLoader.h>

Inheritance diagram for Marble::StackedTileLoader:

Signals

void cleared ()
 
void tileLoaded (TileId const &tileId)
 

Public Member Functions

 StackedTileLoader (MergedLayerDecorator *mergedLayerDecorator, QObject *parent=nullptr)
 
void cleanupTilehash ()
 
void clear ()
 
const StackedTileloadTile (TileId const &stackedTileId)
 
RenderState renderState () const
 
void resetTilehash ()
 
void setVolatileCacheLimit (quint64 kiloBytes)
 
int tileColumnCount (int level) const
 
int tileCount () const
 
const GeoSceneAbstractTileProjectiontileProjection () const
 
int tileRowCount (int level) const
 
QSize tileSize () const
 
void updateTile (TileId const &tileId, QImage const &tileImage)
 
QList< TileId > visibleTiles () const
 
quint64 volatileCacheLimit () const
 
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
 
bool blockSignals (bool block)
 
const QObjectListchildren () const const
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
 
void deleteLater ()
 
void destroyed (QObject *obj)
 
bool disconnect (const char *signal, const QObject *receiver, const char *method) const const
 
bool disconnect (const QObject *receiver, const char *method) const const
 
void dumpObjectInfo ()
 
void dumpObjectInfo () const const
 
void dumpObjectTree ()
 
void dumpObjectTree () const const
 
QList< QByteArraydynamicPropertyNames () const const
 
virtual bool event (QEvent *e)
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
findChild (const QString &name, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QString &name, Qt::FindChildOptions options) const const
 
bool inherits (const char *className) const const
 
void installEventFilter (QObject *filterObj)
 
bool isWidgetType () const const
 
bool isWindowType () const const
 
void killTimer (int id)
 
virtual const QMetaObjectmetaObject () const const
 
void moveToThread (QThread *targetThread)
 
QString objectName () const const
 
void objectNameChanged (const QString &objectName)
 
QObjectparent () const const
 
QVariant property (const char *name) const const
 
 Q_CLASSINFO (Name, Value)
 
 Q_DISABLE_COPY (Class)
 
 Q_DISABLE_COPY_MOVE (Class)
 
 Q_DISABLE_MOVE (Class)
 
 Q_EMIT Q_EMIT
 
 Q_ENUM (...)
 
 Q_ENUM_NS (...)
 
 Q_ENUMS (...)
 
 Q_FLAG (...)
 
 Q_FLAG_NS (...)
 
 Q_FLAGS (...)
 
 Q_GADGET Q_GADGET
 
 Q_INTERFACES (...)
 
 Q_INVOKABLE Q_INVOKABLE
 
 Q_NAMESPACE Q_NAMESPACE
 
 Q_NAMESPACE_EXPORT (EXPORT_MACRO)
 
 Q_OBJECT Q_OBJECT
 
 Q_PROPERTY (...)
 
 Q_REVISION Q_REVISION
 
 Q_SET_OBJECT_NAME (Object)
 
 Q_SIGNAL Q_SIGNAL
 
 Q_SIGNALS Q_SIGNALS
 
 Q_SLOT Q_SLOT
 
 Q_SLOTS Q_SLOTS
 
qFindChild (const QObject *obj, const QString &name)
 
QList< T > qFindChildren (const QObject *obj, const QRegExp &regExp)
 
QList< T > qFindChildren (const QObject *obj, const QString &name)
 
qobject_cast (const QObject *object)
 
qobject_cast (QObject *object)
 
 QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
 
void removeEventFilter (QObject *obj)
 
void setObjectName (const QString &name)
 
void setParent (QObject *parent)
 
bool setProperty (const char *name, const QVariant &value)
 
bool signalsBlocked () const const
 
int startTimer (int interval, Qt::TimerType timerType)
 
int startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
 
QThreadthread () const const
 

Additional Inherited Members

- Properties inherited from QObject
 objectName
 
- Static Public Member Functions inherited from QObject
QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
 
bool disconnect (const QMetaObject::Connection &connection)
 
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)
 
bool disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
 
QString tr (const char *sourceText, const char *disambiguation, int n)
 
QString trUtf8 (const char *sourceText, const char *disambiguation, int n)
 
- Public Attributes inherited from QObject
typedef QObjectList
 
- Protected Member Functions inherited from QObject
virtual void childEvent (QChildEvent *event)
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void customEvent (QEvent *event)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
bool isSignalConnected (const QMetaMethod &signal) const const
 
int receivers (const char *signal) const const
 
QObjectsender () const const
 
int senderSignalIndex () const const
 
virtual void timerEvent (QTimerEvent *event)
 

Detailed Description

Tile loading from a quad tree.

This class loads tiles into memory. For faster access we keep the tileIDs and their respective pointers to the tiles in a hashtable. The class also contains convenience methods to remove entries from the hashtable and to return more detailed properties about each tile level and their tiles.

Author
Torsten Rahn [email protected][email protected]kde.[email protected]org

Definition at line 44 of file StackedTileLoader.h.

Constructor & Destructor Documentation

◆ StackedTileLoader()

Marble::StackedTileLoader::StackedTileLoader ( MergedLayerDecorator *  mergedLayerDecorator,
QObject parent = nullptr 
)
explicit

Creates a new tile loader.

Parameters
mergedLayerDecoratorThe decorator that shall be used to decorate the layer.
parentThe parent widget.

Definition at line 43 of file StackedTileLoader.cpp.

Member Function Documentation

◆ cleanupTilehash()

void Marble::StackedTileLoader::cleanupTilehash ( )

Cleans up the internal tile hash.

Removes all superfluous tiles from the hash.

Definition at line 85 of file StackedTileLoader.cpp.

◆ clear()

void Marble::StackedTileLoader::clear ( )

Effectively triggers a reload of all tiles that are currently in use and clears the tile cache in physical memory.

Definition at line 205 of file StackedTileLoader.cpp.

◆ loadTile()

const StackedTile * Marble::StackedTileLoader::loadTile ( TileId const &  stackedTileId)

Loads a tile and returns it.

Parameters
stackedTileIdThe Id of the requested tile, containing the x and y coordinate and the zoom level.

Definition at line 103 of file StackedTileLoader.cpp.

◆ resetTilehash()

void Marble::StackedTileLoader::resetTilehash ( )

Resets the internal tile hash.

Definition at line 75 of file StackedTileLoader.cpp.

◆ setVolatileCacheLimit()

void Marble::StackedTileLoader::setVolatileCacheLimit ( quint64  kiloBytes)

Set the limit of the volatile (in RAM) cache.

Parameters
kiloBytesThe limit in kilobytes.

Definition at line 167 of file StackedTileLoader.cpp.

◆ tileCount()

int Marble::StackedTileLoader::tileCount ( ) const

Return the number of tiles in the cache.

Returns
number of tiles in cache

Definition at line 162 of file StackedTileLoader.cpp.

◆ visibleTiles()

QList< TileId > Marble::StackedTileLoader::visibleTiles ( ) const

Reloads the tiles that are currently displayed.

Definition at line 157 of file StackedTileLoader.cpp.

◆ volatileCacheLimit()

quint64 Marble::StackedTileLoader::volatileCacheLimit ( ) const

Returns the limit of the volatile (in RAM) cache.

Returns
the cache limit in kilobytes

Definition at line 152 of file StackedTileLoader.cpp.


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