ClemensFischer/XAML-Map-Control
1
0
Fork 0
mirror of https://github.com/ClemensFischer/XAML-Map-Control.git synced 2026-04-05 06:26:41 +00:00
Code Issues Projects Releases Packages Wiki Activity

Version 4.15.1: Simplified MBTiles.

Browse source
This commit is contained in:
ClemensF 2019-11-17 00:10:08 +01:00
parent 08e1823e06
commit d0e671585b
3 changed files with 46 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

43
MBTiles/Shared/MBTileData.cs
View file

@ -15,11 +15,28 @@ namespace MapControl.MBTiles
{
private readonly SQLiteConnection connection;
public IDictionary<string, string> Metadata { get; } = new Dictionary<string, string>();
private MBTileData(string file)
{
connection = new SQLiteConnection("Data Source=" + Path.GetFullPath(file));
}
public void Dispose()
{
connection.Dispose();
}
public static async Task<MBTileData> CreateAsync(string file)
{
var tileData = new MBTileData(file);
await tileData.OpenAsync();
await tileData.ReadMetadataAsync();
return tileData;
}
private async Task OpenAsync()
{
await connection.OpenAsync();
@ -35,24 +52,8 @@ namespace MapControl.MBTiles
}
}
public static async Task<MBTileData> CreateAsync(string file)
private async Task ReadMetadataAsync()
{
var tileData = new MBTileData(file);
await tileData.OpenAsync();
return tileData;
}
public void Dispose()
{
connection.Dispose();
}
public async Task<IDictionary<string, string>> ReadMetadataAsync()
{
var metadata = new Dictionary<string, string>();
try
{
using (var command = new SQLiteCommand("select * from metadata", connection))
@ -61,7 +62,7 @@ namespace MapControl.MBTiles
while (await reader.ReadAsync())
{
metadata[(string)reader["name"]] = (string)reader["value"];
Metadata[(string)reader["name"]] = (string)reader["value"];
}
}
}
@ -69,17 +70,15 @@ namespace MapControl.MBTiles
{
Debug.WriteLine("MBTileData: " + ex.Message);
}
return metadata;
}
public async Task WriteMetadataAsync(IDictionary<string, string> metaData)
public async Task WriteMetadataAsync()
{
try
{
using (var command = new SQLiteCommand("insert or replace into metadata (name, value) values (@n, @v)", connection))
{
foreach (var keyValue in metaData)
foreach (var keyValue in Metadata)
{
command.Parameters.AddWithValue("@n", keyValue.Key);
command.Parameters.AddWithValue("@v", keyValue.Value);