private static void OnResourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
Panorama panorama = d as Panorama;
string newResourcePath = e.NewValue.ToString();
if (string.IsNullOrEmpty(newResourcePath))
{
panorama.ResetPanoramaResource();
return;
}
panorama._fullResourceDirectoryPath = panorama.GetRelativeOrAbsoluteFullPathOfDirectory(newResourcePath);
string configPath = string.Format(@"{0}\{1}", panorama._fullResourceDirectoryPath, "config.json");
if (!File.Exists(configPath))
{
throw new Exception("Panorama configuration file does not exist.");
}
string configString = File.ReadAllText(configPath);
PanoramaResourceConfig resourceConfig = JsonSerializer.Deserialize <PanoramaResourceConfig>(configString);
if (resourceConfig == null || resourceConfig.Layers == null || resourceConfig.Layers.Count == 0)
{
throw new Exception("There is something wrong with the panorama resource config.");
}
panorama._resourceConfig = resourceConfig;
panorama._layerCount = panorama._resourceConfig.Layers.Count;
panorama.UpdateAngleRangePerLayer();
}
/// <summary>
/// 重置全景资源
/// </summary>
/// <param name="panorama"></param>
private void ResetPanoramaResource()
{
_fullResourceDirectoryPath = string.Empty;
_resourceConfig = null;
_layerCount = 0;
_angleRangePerLayer = 0;
CurrentLayerLevel = 0;
if (_content != null)
{
_content.Content = null;
}
}