/// <summary>
/// Refreshes the selected folder in the UI on a background thread. Has special case code.
/// Uses the value stored in the sidebarFolder to choose the folder to resize.
/// </summary>
/// <param name="sender">Object that raised the event</param>
/// <param name="e">Arguments about the event</param>
private void resizeFolder(object sender, RoutedEventArgs e)
{
if (sidebarFolder == null)
{
return;
}
//reinitialize background worker
bgWorker = new System.Threading.Thread(() =>
{
bool onProgressUpdate(FolderData fd, double prog)
{
System.Windows.Application.Current.Dispatcher.Invoke((Action) delegate
{
if (prog == 1 && sidebarPath.Equals(fd.path.FullName))
{
updateSidebar();
StopBtn.IsEnabled = false;
//calculate the level
int lev = sidebarFolder.path.FullName.Split(System.IO.Path.DirectorySeparatorChar).Length - displayList[0].folderData.path.FullName.Split(System.IO.Path.DirectorySeparatorChar).Length - 1;
if (lev < 0)
{
lev = 0;
}
//if this is the root folder, don't add a second collumn when updating UI
if (fd.root)
{
lev = -1;
}
//call the grid clicked event to update the table views
OnGridClicked(new FolderDisplay(sidebarFolder, lev), new FolderDisplayEvent()
{
folderData = sidebarFolder
});
ResizeFolder.IsEnabled = true;
}
StatusL.Content = "Refreshing " + sidebarPath + " (" + Math.Round(prog * 100) + "%)";
MainProg.Value = prog;
//update the UI in the table
foreach (FolderDisplay f in displayList)
{
if (f.folderData.path.FullName.Equals(fd.path.FullName))
{
f.folderData = fd;
f.updateTableListing();
}
}
});
return(true);
}
//resize the folder
sidebarFolder.size(onProgressUpdate);
});
bgWorker.Start();
StopBtn.IsEnabled = true;
ResizeFolder.IsEnabled = false;
}
/// <summary>
/// Sizes the folder tree with the given root folder on a background thread
/// </summary>
/// <param name="path">String representing the fully qualified path to the root folder</param>
private void sizeFolder(string path)
{
FolderData fd = new FolderData(path, true);
displayList = new List <FolderDisplay>();
bgWorker = new System.Threading.Thread(() => fd.size(UpdateUIOnCallback));
sidebarPath = path;
revealButton.IsEnabled = true;
RevealToolbar.IsEnabled = true;
copyPath.IsEnabled = true;
bgWorker.Start();
//hide instructions label
ContentGrid.Children.Remove(LInstructions);
}
/// <summary>
/// Recursively determines the total size of the folder, including subfolders
/// </summary>
/// <param name="callback">Bool returning function that takes a double 0-1. Pass this if you want progress updates (i.e. doing the size asyncronously)</param>
public void size(Func <FolderData, double, bool> callback = null)
{
sfDict = new Dictionary <string, FolderData>();
subFolders = new List <FolderData>();
if (sfdi == null)
{
return;
}
total_size = 0;
files_size = 0;
num_items = 0;
size_files();
//build the list of subfolders by sizing each one
double prog = 0;
foreach (DirectoryInfo d in sfdi)
{
FolderData t = new FolderData(d.FullName);
t.size();
total_size += t.total_size;
num_items += t.num_items;
subFolders.Add(t);
sfDict.Add(t.path.Name, t);
//call the callback
if (callback != null)
{
prog++;
callback(this, prog / sfdi.Count());
}
}
//if the target folder has no subfolders
if (prog == 0 && callback != null)
{
callback(this, 1);
}
}
