private async void ChangeWallpaper()
{
try
{
//TODO -
// Don't need internet access for local folders
//
while (true)
{
_cts = new CancellationTokenSource();
var sources = await _db.GetSourcesAsync();
var access = await NetworkTester.HasInternetAccess();
if (access || sources.Any(x => x.Source == Source.Local))
{
if (sources.Count > 0)
{
if (!wasLocal)
{
foreach (var file in currentImages)
{
File.Delete(file);
}
}
currentImages.Clear();
OptionEnabled = true;
NotifyOfPropertyChange(() => OptionEnabled);
WallpaperSource randSource;
if (access)
{
randSource = sources[_rand.Next(sources.Count)];
}
else
{
sources = sources.Where(x => x.Source == Source.Local).ToList();
randSource = sources[_rand.Next(sources.Count)];
}
if (randSource.Source == Source.Wallhaven)
{
randSource.WallhavenOptions = await _db.GetWallhavenOptions(randSource);
}
Image image = null;
var isMultiple = await _db.UseMultiple();
string tempFile = null;
wasLocal = (randSource.Source == Source.Local);
if (isMultiple)
{
//testing for multiple monitors
var screens = System.Windows.Forms.Screen.AllScreens;
//this needs to be modified to allow vertically stacked monitors.
//right now only side by side monitors will work
using (var bmp = new Bitmap(screens.Sum(x => x.Bounds.Width), screens.Max(x => x.Bounds.Height)))
using (var g = Graphics.FromImage(bmp))
{
//get a random image for each screen
foreach (var s in screens)
{
string imageUrl = await UrlFetcher.GetRandomImageUrl(randSource, await _db.ImgurClientId(), currentImages);
if (String.IsNullOrEmpty(imageUrl))
{
if (String.IsNullOrEmpty(tempFile))
{
continue;
}
//do nothing, leave the temp file as the current file
}
else
{
if (randSource.Source != Source.Local)
{
tempFile = await WebImage.DownloadImage(imageUrl);
}
else
{
tempFile = imageUrl;
}
}
currentImages.Add(tempFile);
image = Image.FromFile(tempFile);
//we need to scale the image properly to fit the screen
image = WebImage.ScaleImage(image, s.Bounds.Width, s.Bounds.Height);
//now figure out the location
var x = ((s.Bounds.Width - image.Width) / 2) + s.Bounds.Location.X;
var y = ((s.Bounds.Height - image.Height) / 2) + s.Bounds.Location.Y;
//draw it onto the screen
g.DrawImage(image, new Rectangle(x, y, image.Width, image.Height));
newImages.Add(image);
}
//now get the file out of it
g.Save();
tempFile = Path.Combine(Environment.ExpandEnvironmentVariables("%temp%"), "stitched.bmp");
bmp.Save(tempFile);
}
}
else
{
string imageUrl = await UrlFetcher.GetRandomImageUrl(randSource, await _db.ImgurClientId(), currentImages);
if (!String.IsNullOrEmpty(imageUrl))
{
if (randSource.Source != Source.Local)
{
tempFile = await WebImage.DownloadImage(imageUrl);
}
else
{
tempFile = imageUrl;
}
image = Image.FromFile(tempFile);
newImages.Add(image);
currentImages.Add(tempFile);
}
}
if (!currentImages.All(x => String.IsNullOrEmpty(x)))
{
DesktopBackground.SetWallpaper(tempFile, isMultiple);
ToolTipInfo = string.Format("Source: {0}\r\nResolution: {1}",
randSource.Source == Source.Reddit ? randSource.Query : randSource.Source + " / " + randSource.Query, newImages.Aggregate("", (c, v) => $"{c}\r\n{v.Width}x{v.Height}"));
NotifyOfPropertyChange(() => ToolTipInfo);
}
foreach (var i in newImages)
{
i.Dispose();
}
newImages.Clear();
}
else
{
ToolTipInfo = "Please add sources!";
NotifyOfPropertyChange(() => ToolTipInfo);
OptionEnabled = false;
NotifyOfPropertyChange(() => OptionEnabled);
}
await Task.Delay(TimeSpan.FromMinutes(await _db.Interval()), _cts.Token).ContinueWith(tsk => { });
}
else
{
ToolTipInfo = "Waiting for internet access...";
NotifyOfPropertyChange(() => ToolTipInfo);
OptionEnabled = false;
NotifyOfPropertyChange(() => OptionEnabled);
await Task.Delay(TimeSpan.FromSeconds(30));
}
}
}
catch (Exception e)
{
e = e;
}
}
