public async Task SaveCropBitmap(StorageFile newImageFile, Size?imageSize = null)
{
var generalTransform = selectRegion.TransformToVisual(editImage);
var cropRect = generalTransform.TransformBounds(CropSelection.SelectedRect);
double sourceImageScale = 1;
if (this.sourceImagePixelHeight < this.ActualHeight &&
this.sourceImagePixelWidth < this.ActualWidth)
{
}
else
{
sourceImageScale = Math.Min(this.ActualWidth / this.sourceImagePixelWidth,
this.ActualHeight / this.sourceImagePixelHeight);
}
var x = cropRect.X / sourceImageScale;
var y = cropRect.Y / sourceImageScale;
var width = cropRect.Width / sourceImageScale;
var height = cropRect.Height / sourceImageScale;
await BitmapHelper.SaveCroppedBitmapAsync(
this.TempImageFile,
newImageFile,
new Point(x, y),
new Size(width, height), imageSize);
}
public async Task SaveCroppedBitmap(StorageFile croppedImageFile, Size?imageSize = null)
{
double widthScale = imageCanvas.Width / this.sourceImagePixelWidth;
double heightScale = imageCanvas.Height / this.sourceImagePixelHeight;
await BitmapHelper.SaveCroppedBitmapAsync(
this.SourceImageFile,
croppedImageFile,
new Point(this.CropSelection.SelectedRect.X / widthScale, this.CropSelection.SelectedRect.Y / heightScale),
new Size(this.CropSelection.SelectedRect.Width / widthScale, this.CropSelection.SelectedRect.Height / heightScale), imageSize);
}
public async Task SaveBitmap(StorageFile newImageFile, Size?imageSize = null)
{
var generalTransform = selectRegion.TransformToVisual(editImage);
var cropRect = generalTransform.TransformBounds(CropSelection.SelectedRect);
var width = cropRect.Width / scrollViewer.ZoomFactor;
var height = cropRect.Height / scrollViewer.ZoomFactor;
await BitmapHelper.SaveCroppedBitmapAsync(
this.TempImageFile,
newImageFile,
new Point(0, 0),
new Size(this.sourceImagePixelWidth, this.sourceImagePixelHeight), imageSize);
}
