/// <summary>
/// Reset to default state
/// </summary>
internal static void Unload()
{
ConfigureWindows.GetMainWindow.TitleText.ToolTip = ConfigureWindows.GetMainWindow.TitleText.Text = Application.Current.Resources["NoImage"] as string;
ConfigureWindows.GetMainWindow.Title = Application.Current.Resources["NoImage"] as string + " - " + UILogic.SetTitle.AppName;
CanNavigate = false;
ConfigureWindows.GetMainWindow.MainImage.Source = null;
FreshStartup = true;
if (Pics != null)
{
Pics.Clear();
}
Preloader.Clear();
GalleryFunctions.Clear();
ConfigureWindows.GetMainWindow.MainImage.Width = ConfigureWindows.GetMainWindow.Scroller.Width = ConfigureWindows.GetMainWindow.Scroller.Height =
ConfigureWindows.GetMainWindow.MainImage.Height = double.NaN;
ScaleImage.xWidth = ScaleImage.xHeight = 0;
if (!string.IsNullOrWhiteSpace(ArchiveExtraction.TempZipPath))
{
DeleteTempFiles();
ArchiveExtraction.TempZipPath = string.Empty;
}
SystemIntegration.Taskbar.NoProgress();
}
/// <summary>
/// Refresh the current list of pics and reload them if there is some missing or changes.
/// </summary>
internal static void Reload(bool fromBackup = false)
{
if (fromBackup && string.IsNullOrWhiteSpace(BackupPath))
{
Unload();
return;
}
string s;
if (Pics != null && Pics.Count > 0)
{
s = fromBackup ? BackupPath : Pics[FolderIndex];
}
else
{
// TODO extract url from path or get alternative method
s = Path.GetFileName(ConfigureWindows.GetMainWindow.TitleText.Text);
}
if (File.Exists(s))
{
// Force reloading values by setting freshStartup to true
FreshStartup = true;
// Clear Preloader, to avoid errors by FolderIndex changing location because of re-sorting
Preloader.Clear();
// Need a sort method instead
GalleryFunctions.Clear();
Pic(s);
// Reset
if (Flipped)
{
Flip();
}
if (Rotateint != 0)
{
Rotate(0);
}
}
else if (Clipboard.ContainsImage() || Base64.IsBase64String(s))
{
return;
}
else if (Uri.IsWellFormedUriString(s, UriKind.Absolute)) // Check if from web
{
LoadFromWeb.PicWeb(s);
}
else
{
Unload();
ShowTooltipMessage(Application.Current.Resources["UnexpectedError"]);
}
}
/// <summary>
/// Update after FastPic() was used
/// </summary>
internal static void FastPicUpdate()
{
if (!Preloader.Contains(Pics[FolderIndex]))
{
Preloader.Clear();
}
Pic(FolderIndex);
}
/// <summary>
/// Update after FastPic() was used
/// </summary>
internal static void FastPicUpdate()
{
/// TODO optimize preloader usage here, to not cause delays
/// when very quickly browsing images
/// Need a solution that will make sure no unused values
/// are in the preloader collection
// Make sure it's only updated when the key is actually held down
if (!FastPicRunning)
{
return;
}
Preloader.Clear();
Pic(FolderIndex);
FastPicRunning = false;
}
/// <summary>
/// Clears data, to free objects no longer necessary to store in memory and allow changing folder without error.
/// </summary>
internal static void ChangeFolder(bool backup = false)
{
if (Pics.Count > 0 && backup)
{
// Make a backup of xPicPath and FolderIndex
if (!string.IsNullOrWhiteSpace(Pics[FolderIndex]))
{
BackupPath = Pics[FolderIndex];
}
}
Pics.Clear();
GalleryFunctions.Clear();
Preloader.Clear();
FreshStartup = true;
DeleteTempFiles();
}
/// <summary>
/// Loads a picture from a given file path and does extra error checking
/// </summary>
/// <param name="path"></param>
internal static async void Pic(string path)
{
// Set Loading
SetLoadingString();
// Handle if from web
if (!File.Exists(path))
{
if (Uri.IsWellFormedUriString(path, UriKind.Absolute))
{
LoadFromWeb.PicWeb(path);
return;
}
else if (Directory.Exists(path))
{
ChangeFolder(true);
await GetValues(path).ConfigureAwait(true);
}
else
{
Unload();
return;
}
}
// If count not correct or just started, get values
if (Pics.Count <= FolderIndex || FolderIndex < 0 || FreshStartup)
{
await GetValues(path).ConfigureAwait(true);
}
// If the file is in the same folder, navigate to it. If not, start manual loading procedure.
else if (!string.IsNullOrWhiteSpace(Pics[FolderIndex]) && Path.GetDirectoryName(path) != Path.GetDirectoryName(Pics[FolderIndex]))
{
// Reset old values and get new
ChangeFolder(true);
await GetValues(path).ConfigureAwait(true);
}
FolderIndex = Pics.IndexOf(path);
// Fix large archive extraction error
if (FolderIndex == -1)
{
var recovery = await RecoverFailedArchiveAsync().ConfigureAwait(true);
if (!recovery)
{
Reload(true);
return;
}
else
{
LoadWindows.GetMainWindow.TitleText.Text = Application.Current.Resources["Unzipping"] as string;
LoadWindows.GetMainWindow.TitleText.ToolTip = LoadWindows.GetMainWindow.TitleText.Text;
FolderIndex = 0;
}
LoadWindows.GetMainWindow.Focus();
}
if (!FreshStartup)
{
Preloader.Clear();
}
#if DEBUG
if (FreshStartup)
{
Trace.WriteLine("Pic(string path) entering Pic(int x)");
}
#endif
// Navigate to picture using obtained index
Pic(FolderIndex);
// Load new gallery values, if changing folder
if (GetPicGallery != null && Properties.Settings.Default.PicGallery == 2 && !GalleryFunctions.IsLoading)
{
await GalleryLoad.Load().ConfigureAwait(false);
}
}
/// <summary>
/// Goes to next, previous, first or last file in folder
/// </summary>
/// <param name="next">Whether it's forward or not</param>
/// <param name="end">Whether to go to last or first,
/// depending on the next value</param>
internal static void Pic(bool next = true, bool end = false)
{
// Exit if not intended to change picture
if (!CanNavigate)
{
return;
}
// exit if browsing PicGallery
if (GetPicGallery != null)
{
if (Properties.Settings.Default.PicGallery == 1)
{
if (GalleryFunctions.IsOpen)
{
return;
}
}
}
// Make backup
var indexBackup = FolderIndex;
if (!end) // Go to next or previous
{
if (next)
{
// loop next
if (Properties.Settings.Default.Looping || Slideshow.SlideTimer != null && Slideshow.SlideTimer.Enabled)
{
FolderIndex = FolderIndex == Pics.Count - 1 ? 0 : FolderIndex + 1;
}
else
{
// Go to next if able
if (FolderIndex + 1 == Pics.Count)
{
return;
}
FolderIndex++;
}
Reverse = false;
}
else
{
// Loop prev
if (Properties.Settings.Default.Looping || Slideshow.SlideTimer != null && Slideshow.SlideTimer.Enabled)
{
FolderIndex = FolderIndex == 0 ? Pics.Count - 1 : FolderIndex - 1;
}
else
{
// Go to prev if able
if (FolderIndex - 1 < 0)
{
return;
}
FolderIndex--;
}
Reverse = true;
}
}
else // Go to first or last
{
FolderIndex = next ? Pics.Count - 1 : 0;
indexBackup = FolderIndex;
// Reset preloader values to prevent errors
if (Pics.Count > 20)
{
Preloader.Clear();
}
}
// Go to the image!
Pic(FolderIndex);
// Update PicGallery selected item, if needed
if (GetPicGallery != null)
{
if (GetPicGallery.Container.Children.Count > FolderIndex && GetPicGallery.Container.Children.Count > indexBackup)
{
if (indexBackup != FolderIndex)
{
GalleryFunctions.SetUnselected(indexBackup);
}
GalleryFunctions.SetSelected(FolderIndex);
GalleryScroll.ScrollTo();
}
else
{
// TODO Find way to get PicGalleryItem an alternative way...
}
}
CloseToolTipMessage();
}
/// <summary>
/// Goes to next, previous, first or last file in folder
/// </summary>
/// <param name="next">Whether it's forward or not</param>
/// <param name="end">Whether to go to last or first,
/// depending on the next value</param>
internal static async void Pic(bool next = true, bool end = false)
{
// Exit if not intended to change picture
if (!CanNavigate)
{
return;
}
// exit if browsing PicGallery
if (GetPicGallery != null)
{
if (Properties.Settings.Default.FullscreenGallery == false)
{
if (GalleryFunctions.IsOpen)
{
return;
}
}
}
// Make backup
var indexBackup = FolderIndex;
if (!end) // Go to next or previous
{
if (next)
{
// loop next
if (Properties.Settings.Default.Looping || Slideshow.SlideTimer != null && Slideshow.SlideTimer.Enabled)
{
FolderIndex = FolderIndex == Pics.Count - 1 ? 0 : FolderIndex + 1;
}
else
{
// Go to next if able
if (FolderIndex + 1 == Pics.Count)
{
return;
}
FolderIndex++;
}
Reverse = false;
}
else
{
// Loop prev
if (Properties.Settings.Default.Looping || Slideshow.SlideTimer != null && Slideshow.SlideTimer.Enabled)
{
FolderIndex = FolderIndex == 0 ? Pics.Count - 1 : FolderIndex - 1;
}
else
{
// Go to prev if able
if (FolderIndex - 1 < 0)
{
return;
}
FolderIndex--;
}
Reverse = true;
}
}
else // Go to first or last
{
FolderIndex = next ? Pics.Count - 1 : 0;
indexBackup = FolderIndex;
// Reset preloader values to prevent errors
if (Pics.Count > 20)
{
Preloader.Clear();
}
}
// Go to the image!
await LoadPicAt(FolderIndex).ConfigureAwait(true);
// Update PicGallery selected item, if needed
if (GalleryFunctions.IsOpen)
{
await ConfigureWindows.GetMainWindow.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Normal, (Action)(() =>
{
if (GetPicGallery.Container.Children.Count > FolderIndex && GetPicGallery.Container.Children.Count > indexBackup)
{
if (indexBackup != FolderIndex)
{
GalleryNavigation.SetSelected(indexBackup, false);
}
GalleryNavigation.SetSelected(FolderIndex, true);
GalleryNavigation.ScrollTo();
}
else
{
// TODO Find way to get PicGalleryItem an alternative way...
}
}));
}
CloseToolTipMessage();
}
/// <summary>
/// Loads a picture from a given file path and does extra error checking
/// </summary>
/// <param name="path"></param>
internal static async Task LoadPiFrom(string path)
{
// Set Loading
SetLoadingString();
// Handle if from web
if (!File.Exists(path))
{
if (Uri.IsWellFormedUriString(path, UriKind.Absolute))
{
LoadFromWeb.PicWeb(path);
return;
}
else if (Directory.Exists(path))
{
ChangeFolder(true);
await GetValues(path).ConfigureAwait(true);
}
else
{
Unload();
return;
}
}
// If count not correct or just started, get values
if (Pics.Count <= FolderIndex || FolderIndex < 0 || FreshStartup)
{
await GetValues(path).ConfigureAwait(true);
}
// If the file is in the same folder, navigate to it. If not, start manual loading procedure.
else if (!string.IsNullOrWhiteSpace(Pics[FolderIndex]) && Path.GetDirectoryName(path) != Path.GetDirectoryName(Pics[FolderIndex]))
{
// Reset old values and get new
ChangeFolder(true);
await GetValues(path).ConfigureAwait(true);
}
FolderIndex = Pics.IndexOf(path);
if (!FreshStartup)
{
Preloader.Clear();
}
if (FolderIndex != -1) // if it is -1, it means it being extracted and need to wait for it instead
{
// Navigate to picture using obtained index
await LoadPicAt(FolderIndex).ConfigureAwait(false);
}
await ConfigureWindows.GetMainWindow.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Background, (Action)(async() =>
{
// Load new gallery values, if changing folder
if (GetPicGallery != null && Properties.Settings.Default.FullscreenGallery)
{
if (GetPicGallery.Container.Children.Count == 0)
{
await GalleryLoad.Load().ConfigureAwait(false);
}
}
}));
}
/// <summary>
/// Loads a picture from a given file path and does extra error checking
/// </summary>
/// <param name="path"></param>
internal static async void Pic(string path)
{
// Set Loading
SetLoadingString();
// Handle if from web
if (!File.Exists(path))
{
if (Uri.IsWellFormedUriString(path, UriKind.Absolute))
{
LoadFromWeb.PicWeb(path);
return;
}
else if (Directory.Exists(path))
{
ChangeFolder(true);
await GetValues(path).ConfigureAwait(true);
}
else
{
Unload();
return;
}
}
// If count not correct or just started, get values
if (Pics.Count <= FolderIndex || FolderIndex < 0 || FreshStartup)
{
await GetValues(path).ConfigureAwait(true);
}
// If the file is in the same folder, navigate to it. If not, start manual loading procedure.
else if (!string.IsNullOrWhiteSpace(Pics[FolderIndex]) && Path.GetDirectoryName(path) != Path.GetDirectoryName(Pics[FolderIndex]))
{
// Reset old values and get new
ChangeFolder(true);
await GetValues(path).ConfigureAwait(true);
}
FolderIndex = Pics.IndexOf(path);
if (!FreshStartup)
{
Preloader.Clear();
}
#if DEBUG
if (FreshStartup)
{
Trace.WriteLine("Pic(string path) entering Pic(int x)");
}
#endif
// Navigate to picture using obtained index
Pic(FolderIndex == -1 ? 0 : FolderIndex);
// Load new gallery values, if changing folder
if (GetPicGallery != null && Properties.Settings.Default.PicGallery == 2)
{
if (GetPicGallery.Container.Children.Count == 0)
{
await GalleryLoad.Load().ConfigureAwait(false);
}
}
}