private void DisplayThumbnails(string panoId, string cachePathBase)
{
StreetviewDownloaderModel _model = new StreetviewDownloaderModel
{
PanoID = panoId
};
// Clear previous items
thumbnails.Children.Clear();
//Set up downloader...
Downloader.Downloader imageDownloader = new Downloader.Downloader(cachePathBase);
System.Drawing.Image bigImage = imageDownloader.GetFullImage(panoId, 2, null);
panorama panoObject = _model.DownloadPanoramaInfo(panoId);
decimal panoYaw = panoObject.projection_properties.pano_yaw_deg;
System.Drawing.Image smallImage = new System.Drawing.Bitmap(720, 360);
using (Graphics g = Graphics.FromImage(smallImage)) {
g.DrawImage(bigImage, 0, 0, smallImage.Width, smallImage.Height);
}
// Get all the thumbnails
foreach (var annotation in panoObject.annotation_properties.OrderBy(item => item.yaw_deg))
{
var button = new System.Windows.Controls.Button();
var thumbImg = new System.Windows.Controls.Image();
//headingDelta >= 2 || headingDelta <= -2
System.Drawing.Image thumbnail = imageDownloader.ManipulateImage(smallImage, panoYaw, annotation.yaw_deg, 90);
thumbImg.Source = ImageConverter(thumbnail);
thumbImg.Width = 180;
button.Content = thumbImg;
button.Click += (object sender, RoutedEventArgs e) =>
{
foreach (Button thumbButton in thumbnails.Children)
{
thumbButton.BorderThickness = new Thickness(1);
thumbButton.BorderBrush = System.Windows.Media.Brushes.Gray;
}
button.BorderThickness = new Thickness(2);
button.BorderBrush = System.Windows.Media.Brushes.Yellow;
DesiredHeading = annotation.yaw_deg;
};
thumbnails.Children.Add(button);
}
}
private string GetPanoramaLocationText(panorama panoObject)
{
string location = string.Empty;
string country = panoObject.data_properties.country ?? string.Empty;
string region = panoObject.data_properties.region ?? string.Empty;
string text = panoObject.data_properties.text ?? string.Empty;
string copyright = panoObject.data_properties.copyright ?? string.Empty;
location = text + ", " + region + ", " + country + " " + copyright;
return(location);
}
private void DisplayThumbnails(panorama panoObject, System.Drawing.Image bigImage)
{
// Clear previous items
thumbnails.Children.Clear();
keyboardPanoLinkList.Clear();
//Set up downloader...
Downloader.Downloader imageDownloader = new Downloader.Downloader(_model.CachePathBase);
int thumbnailKey = 1;
decimal panoYaw = panoObject.projection_properties.pano_yaw_deg;
System.Drawing.Image smallImage = new System.Drawing.Bitmap(720, 360);
using (Graphics g = Graphics.FromImage(smallImage)) {
g.DrawImage(bigImage, 0, 0, smallImage.Width, smallImage.Height);
}
// Get all the thumbnails
foreach (var annotation in panoObject.annotation_properties.OrderBy(item => item.yaw_deg))
{
var button = new System.Windows.Controls.Button();
var thumbImg = new System.Windows.Controls.Image();
//headingDelta >= 2 || headingDelta <= -2
System.Drawing.Image thumbnail = imageDownloader.ManipulateImage(smallImage, panoYaw, annotation.yaw_deg, 90);
thumbImg.Source = ImageConverter(thumbnail);
thumbImg.Width = 125;
button.Content = thumbImg;
button.ToolTip = "Click to move to next image. Heading = " + annotation.yaw_deg + " PanoID = " + annotation.pano_id;
button.Click += (object sender, RoutedEventArgs e) =>
{
foreach (Button thumbButton in thumbnails.Children)
{
thumbButton.IsEnabled = false;
}
_model.PanoID = annotation.pano_id;
_model.Heading = annotation.yaw_deg;
RetrieveAndDisplayPanorama(annotation.pano_id);
};
thumbnails.Children.Add(button);
keyboardPanoLinkList.Add(thumbnailKey++, annotation.pano_id);
}
}
private async void TimeLapseAsync(string fileSavePath, string startPanoId)
{
int timelapseFileCounter = 1;
continueTimelapse = true;
_model.StopTimelapseVisibility = Visibility.Visible;
string nextPanoId = startPanoId;
try {
while (continueTimelapse)
{
Task retrievePanoramaTask = RetrieveAndDisplayPanoramaAsync(nextPanoId);
await retrievePanoramaTask;
// Save the current image
displayedImage.Save(fileSavePath + FiveZero(timelapseFileCounter++) + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
// Get the pano info to find linked panoramas
panorama panoObject = _model.DownloadPanoramaInfo(nextPanoId);
if (panoObject.annotation_properties.Length > 0)
{
// Pick pano with closest heading
var nextPano = panoObject.annotation_properties.OrderBy(item => Math.Abs(_model.Heading - item.yaw_deg)).First();
nextPanoId = nextPano.pano_id;
_model.Heading = nextPano.yaw_deg;
}
else
{
//No linked panoramas (it can happen)
continueTimelapse = false;
break;
}
}
} catch (Exception e) {
MessageBox.Show(e.Message + Environment.NewLine + e.InnerException, "An error occured creating timelapse images");
} finally {
// Open the folder the images are saved to
System.Diagnostics.Process.Start(fileSavePath.Substring(0, fileSavePath.LastIndexOf(@"\")));
}
}
public panorama DownloadPanoramaInfo(string panoId)
{
//Set up downloader...
Downloader.Downloader imageDownloader = new Downloader.Downloader(CachePathBase);
//Download XML or Load from cache
if (!System.IO.File.Exists(CachePathBase + panoId + @"\" + panoId + ".xml") || new FileInfo(CachePathBase + panoId + @"\" + panoId + ".xml").Length == 0)
{
if (!System.IO.Directory.Exists(CachePathBase + panoId))
{
System.IO.Directory.CreateDirectory(CachePathBase + panoId);
}
imageDownloader.Download("http://cbk0.google.com/cbk?output=xml&panoid=" + panoId, CachePathBase + panoId + @"\" + panoId + ".xml");
}
XmlSerializer serializer = new XmlSerializer(typeof(panorama));
StreamReader reader = new StreamReader(CachePathBase + panoId + @"\" + panoId + ".xml");
panorama panoObject = (panorama)serializer.Deserialize(reader);
reader.Close();
return(panoObject);
}
private async Task RetrieveAndDisplayPanoramaAsync(string panoId)
{
try {
// Show progress bar
_model.ProgressBarVisibility = Visibility.Visible;
// Holds technical meta information about the pano
panorama panoObject = await Task.Run(() =>
{
return(_model.DownloadPanoramaInfo(panoId));
});
if (panoObject.data_properties == null)
{
_model.Location = "Error: Panorama has invalid XML data...";
return;
}
_model.Location = GetPanoramaLocationText(panoObject);
if (panoObject.data_properties.image_width < 3330 && _model.ZoomLevel > 3)
{
_model.ZoomLevel = 3; //We're dealing with a low res panorama here
}
// Progress value, max value, status text
IProgress <Tuple <int, int, string> > progressIndicator = new Progress <Tuple <int, int, string> >(ReportProgress);
var image = await Task.Run(() =>
{
return(DownloadBigPano(panoId, progressIndicator));
});
// Show the image width and height on screen
UpdateDimenions(image.Width, image.Height);
// Download progress complete
progressIndicator.Report(new Tuple <int, int, string>(0, 100, "Displaying image..."));
// Set the center of the image to the desired heading and narrow to selected field of view
Downloader.Downloader imageDownloader = new Downloader.Downloader(_model.CachePathBase);
System.Drawing.Image manipulatedImage = null;
if (_model.FieldOfView == 360 && _model.Zero360Timelapses)
{
manipulatedImage = imageDownloader.ManipulateImage(image, panoObject.projection_properties.pano_yaw_deg, 0, _model.FieldOfView);
}
else
{
manipulatedImage = imageDownloader.ManipulateImage(image, panoObject.projection_properties.pano_yaw_deg, _model.Heading, _model.FieldOfView);
}
_model.MainImageSource = ImageConverter(manipulatedImage);
// Show the image width and height on screen
UpdateDimenions(manipulatedImage.Width, manipulatedImage.Height);
displayedImage = manipulatedImage;
progressIndicator.Report(new Tuple <int, int, string>(100, 100, "Displaying image..."));
// The Save As... dialog in the file menu
_model.FileMenuSaveAsEnabled = true;
_model.FileMenuTimelapseEnabled = true;
// Show the thumbnail images looking towards linked panoramas
if (!continueTimelapse)
{
DisplayThumbnails(panoObject, image);
}
// Hide Progress Bar
_model.ProgressBarVisibility = Visibility.Hidden;
} catch (Exception e) {
MessageBox.Show(e.Message + Environment.NewLine + e.InnerException, "An error occured downloading the image");
}
}
