public void RemoveBackgroundColor(BrushModel brush)
{
int index = BackgroundBrushModels.IndexOf(brush);
if (index >= 0)
{
BackgroundBrushModels.RemoveAt(index);
}
if (index == 0)
{
OnPropertyChanged("BackgroundBrush");
}
if (brush.IsAllowDelete)
{
Task.Run(async() =>
{
var file = await StorageFile.GetFileFromPathAsync(brush.URIString);
if (file != null)
{
await file.DeleteAsync();
}
});
}
}
public async Task InsertBackgroundColor(StorageFile file)
{
StorageFolder folder = ApplicationData.Current.LocalFolder;
StorageFolder imgFolder = null;
try
{
imgFolder = await folder.GetFolderAsync("BackgroundImg");
}
catch { }
if (imgFolder == null)
{
imgFolder = await folder.CreateFolderAsync("BackgroundImg");
}
var copiedFile = await file.CopyAsync(imgFolder, file.Name, NameCollisionOption.GenerateUniqueName);
BrushModel brush = new BrushModel()
{
URIString = copiedFile.Path
};
BackgroundBrushModels.Add(brush);
}
public void SelectBackgroundColor(BrushModel brush)
{
BackgroundBrushModels.Remove(brush);
BackgroundBrushModels.Insert(0, brush);
OnPropertyChanged("BackgroundBrush");
}
public async Task ClearImgCache()
{
StorageFolder folder = ApplicationData.Current.LocalFolder;
StorageFolder imgFolder = null;
try
{
imgFolder = await folder.GetFolderAsync("BackgroundImg");
}
catch { }
if (imgFolder != null)
{
await imgFolder.DeleteAsync();
}
BackgroundBrushModels = new ObservableCollection <BrushModel>(BrushModel.GetBuiltInModels());
}