Virtual Method

ShumateDataSourceget_tile_data_async

Declaration [src]

void
get_tile_data_async (
  ShumateDataSource* self,
  int x,
  int y,
  int zoom_level,
  GCancellable* cancellable,
  GAsyncReadyCallback callback,
  gpointer user_data
)

Description [src]

Gets the data for the tile at the given coordinates.

Some data sources may return data multiple times. For example, ShumateTileDownloader may return data from a cache, then return updated data from the network. ShumateDataSource::received-data is emitted each time data is received, then callback is called after the last update.

Parameters

x

Type: int

The X coordinate to fetch.

y

Type: int

The Y coordinate to fetch.

zoom_level

Type: int

The Z coordinate to fetch.

cancellable

Type: GCancellable

A GCancellable.

The argument can be NULL.
The data is owned by the caller of the function.
callback

Type: GAsyncReadyCallback

A GAsyncReadyCallback to execute upon completion.

user_data

Type: gpointer

Closure data for callback.

The argument can be NULL.
The data is owned by the caller of the function.