Marble::StackedTileLoader
#include <StackedTileLoader.h>
Signals | |
void | cleared () |
void | tileLoaded (TileId const &tileId) |
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.
Definition at line 44 of file StackedTileLoader.h.
Constructor & Destructor Documentation
◆ StackedTileLoader()
|
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 43 of file StackedTileLoader.cpp.
◆ ~StackedTileLoader()
|
override |
Definition at line 49 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
-
stackedTileId The Id of the requested tile, containing the x and y coordinate and the zoom level.
Definition at line 103 of file StackedTileLoader.cpp.
◆ renderState()
RenderState Marble::StackedTileLoader::renderState | ( | ) | const |
Definition at line 194 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
-
kiloBytes The limit in kilobytes.
Definition at line 167 of file StackedTileLoader.cpp.
◆ tileColumnCount()
int Marble::StackedTileLoader::tileColumnCount | ( | int | level | ) | const |
Definition at line 55 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.
◆ tileProjection()
const GeoSceneAbstractTileProjection * Marble::StackedTileLoader::tileProjection | ( | ) | const |
Definition at line 65 of file StackedTileLoader.cpp.
◆ tileRowCount()
int Marble::StackedTileLoader::tileRowCount | ( | int | level | ) | const |
Definition at line 60 of file StackedTileLoader.cpp.
◆ tileSize()
QSize Marble::StackedTileLoader::tileSize | ( | ) | const |
Definition at line 70 of file StackedTileLoader.cpp.
◆ updateTile()
Definition at line 173 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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