private async void Crop_Click(object sender, RoutedEventArgs e)
{
#region File Setup
// Load a File Picker that shows image file types
FileOpenPicker open = new FileOpenPicker();
open.FileTypeFilter.Add(".jpg");
open.FileTypeFilter.Add(".png");
open.FileTypeFilter.Add(".jpeg");
open.ViewMode = PickerViewMode.Thumbnail;
open.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
open.CommitButtonText = "Open";
// Wait for user to select a file
StorageFile source = await open.PickSingleFileAsync();
// Verify the source is not null
if (source != null)
{
try
{
// Create a destination file
StorageFile dest = await KnownFolders.PicturesLibrary.CreateFileAsync("Cropped.jpg", CreationCollisionOption.ReplaceExisting);
#endregion
// Call CropImageAsync and receive Result
LaunchUriResult result = await this.CropImageAsync(source, dest, 500, 500);
// Load Destination Image into Image Preview
var stream = await dest.OpenReadAsync();
await AppData.currentImage.SetSourceAsync(stream);
#region Error Handling
// Verify result and load picture into the source
if (result.Status == LaunchUriStatus.Success && result.Result != null)
{
string imgstr = await ImageTools.FileToString(dest);
if (imgstr != null)
{
await AppData.currentImage.SetSourceAsync(ImageTools.DecodeStringToBitmapSource(imgstr));
AppData.currentImageString = imgstr;
}
}
}
catch
{
MessageDialog md = new MessageDialog("Error loading image file.");
await md.ShowAsync();
}
}
#endregion
}
// open image button
private async void Open_Click(object sender, RoutedEventArgs e)
{
// open file
FileOpenPicker open = new FileOpenPicker();
open.FileTypeFilter.Add(".jpg");
open.FileTypeFilter.Add(".png");
open.FileTypeFilter.Add(".jpeg");
open.ViewMode = PickerViewMode.Thumbnail;
open.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
open.CommitButtonText = "Open";
// Open a stream for the selected file
StorageFile file = await open.PickSingleFileAsync();
// load the file as the image
if (file != null)
{
try
{
string imgstr = await ImageTools.FileToString(file);
if (imgstr != null)
{
await AppData.currentImage.SetSourceAsync(ImageTools.DecodeStringToBitmapSource(imgstr));
AppData.currentImageString = imgstr;
}
}
catch
{
MessageDialog md = new MessageDialog("Error loading image file.");
await md.ShowAsync();
}
}
}