ClemensFischer/XAML-Map-Control
1
0
Fork 0
mirror of https://github.com/ClemensFischer/XAML-Map-Control.git synced 2026-04-07 07:25:21 +00:00
Code Issues Projects Releases Packages Wiki Activity

Simplified MBTiles implementation

Browse source
This commit is contained in:
ClemensFischer 2024-08-20 18:00:04 +02:00
parent 4343dd9e9a
commit 2b483b4a68
3 changed files with 101 additions and 181 deletions
Download patch file Download diff file Expand all files Collapse all files

66
MBTiles/Shared/MBTileLayer.cs
View file

@ -2,6 +2,8 @@
// Copyright © 2024 Clemens Fischer
// Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.Diagnostics;
using System.Threading.Tasks;
#if WPF
using System.Windows;
@ -33,14 +35,25 @@ namespace MapControl.MBTiles
/// <summary>
/// May be overridden to create a derived MBTileSource that handles other tile formats than png and jpg.
/// </summary>
protected virtual MBTileSource CreateTileSource(MBTileData tileData)
protected virtual async Task<MBTileSource> CreateTileSourceAsync(string file)
{
return new MBTileSource(tileData);
var tileSource = new MBTileSource();
await tileSource.OpenAsync(file);
if (tileSource.Metadata.TryGetValue("format", out string format) && format != "png" && format != "jpg")
{
tileSource.Dispose();
throw new NotSupportedException($"Tile image format {format} is not supported.");
}
return tileSource;
}
private async Task FilePropertyChanged(string file)
{
(TileSource as MBTileSource)?.Dispose();
(TileSource as MBTileSource)?.Close();
ClearValue(TileSourceProperty);
ClearValue(SourceNameProperty);
@ -48,31 +61,38 @@ namespace MapControl.MBTiles
ClearValue(MinZoomLevelProperty);
ClearValue(MaxZoomLevelProperty);
if (file != null)
if (!string.IsNullOrEmpty(file))
{
var tileData = await MBTileData.CreateAsync(file);
if (tileData.Metadata.TryGetValue("name", out string sourceName))
try
{
SourceName = sourceName;
}
var tileSource = await CreateTileSourceAsync(file);
if (tileData.Metadata.TryGetValue("description", out string description))
TileSource = tileSource;
if (tileSource.Metadata.TryGetValue("name", out string value))
{
SourceName = value;
}
if (tileSource.Metadata.TryGetValue("description", out value))
{
Description = value;
}
if (tileSource.Metadata.TryGetValue("minzoom", out value) && int.TryParse(value, out int zoomLevel))
{
MinZoomLevel = zoomLevel;
}
if (tileSource.Metadata.TryGetValue("maxzoom", out value) && int.TryParse(value, out zoomLevel))
{
MaxZoomLevel = zoomLevel;
}
}
catch (Exception ex)
{
Description = description;
Debug.WriteLine($"MBTileLayer: {ex.Message}");
}
if (tileData.Metadata.TryGetValue("minzoom", out sourceName) && int.TryParse(sourceName, out int minZoom))
{
MinZoomLevel = minZoom;
}
if (tileData.Metadata.TryGetValue("maxzoom", out sourceName) && int.TryParse(sourceName, out int maxZoom))
{
MaxZoomLevel = maxZoom;
}
TileSource = CreateTileSource(tileData);
}
}
}