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 StackedTile *	loadTile (TileId const &stackedTileId)
RenderState	renderState () const
void	resetTilehash ()
void	setVolatileCacheLimit (quint64 kiloBytes)
int	tileColumnCount (int level) const
int	tileCount () const
const GeoSceneAbstractTileProjection *	tileProjection () 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)
QBindable< QString >	bindableObjectName ()
bool	blockSignals (bool block)
const QObjectList &	children () 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 () const const
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
virtual bool	eventFilter (QObject *watched, QEvent *event)
T	findChild (const QString &name, 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
QList< T >	findChildren (Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isQuickItemType () const const
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_GADGET_EXPORT (EXPORT_MACRO)
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_MOC_INCLUDE Q_MOC_INCLUDE
	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
T	qobject_cast (const QObject *object)
T	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	setObjectName (QAnyStringView name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	setProperty (const char *name, QVariant &&value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)
QThread *	thread () const const

Additional Inherited Members
Public Types inherited from QObject
typedef	QObjectList
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)
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
QObject *	sender () 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 rahn@.nosp@m.kde..nosp@m.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

mergedLayerDecorator	The decorator that shall be used to decorate the layer.
parent	The parent widget.

Definition at line 42 of file StackedTileLoader.cpp.

~StackedTileLoader()

Marble::StackedTileLoader::~StackedTileLoader ( )

override

Definition at line 48 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 84 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 204 of file StackedTileLoader.cpp.

loadTile()

const StackedTile * Marble::StackedTileLoader::loadTile

(

TileId const &

stackedTileId

)

Loads a tile and returns it.

Parameters

stackedTileId

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

Definition at line 102 of file StackedTileLoader.cpp.

renderState()

RenderState Marble::StackedTileLoader::renderState

(

)

const

Definition at line 193 of file StackedTileLoader.cpp.

resetTilehash()

void Marble::StackedTileLoader::resetTilehash

(

)

Resets the internal tile hash.

Definition at line 74 of file StackedTileLoader.cpp.

setVolatileCacheLimit()

void Marble::StackedTileLoader::setVolatileCacheLimit

(

quint64

kiloBytes

)

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

Parameters

kiloBytes

The limit in kilobytes.

Definition at line 166 of file StackedTileLoader.cpp.

tileColumnCount()

int Marble::StackedTileLoader::tileColumnCount

(

int

level

)

const

Definition at line 54 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 161 of file StackedTileLoader.cpp.

tileProjection()

const GeoSceneAbstractTileProjection * Marble::StackedTileLoader::tileProjection

(

)

const

Definition at line 64 of file StackedTileLoader.cpp.

tileRowCount()

int Marble::StackedTileLoader::tileRowCount

(

int

level

)

const

Definition at line 59 of file StackedTileLoader.cpp.

tileSize()

QSize Marble::StackedTileLoader::tileSize

(

)

const

Definition at line 69 of file StackedTileLoader.cpp.

updateTile()

void Marble::StackedTileLoader::updateTile	(	TileId const &	tileId,
		QImage const &	tileImage )

Definition at line 172 of file StackedTileLoader.cpp.

visibleTiles()

QList< TileId > Marble::StackedTileLoader::visibleTiles

(

)

const

Reloads the tiles that are currently displayed.

Definition at line 156 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 151 of file StackedTileLoader.cpp.

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

• StackedTileLoader.h
• StackedTileLoader.cpp