public static bool Resize(WriteableBitmap bitmap, Stream stream, Size rSize, bool isCenterCrop)
{
bool isResized = false;
double dr = JpegHelper.GetMinRatio(bitmap, rSize);
//if (dr > 1)
//{
//가로/세로를 중심점에 맞추어 잘라내기
if (isCenterCrop)
{
//비트맵도 사이즈 변경
bitmap = bitmap.Resize((int)(bitmap.PixelWidth / dr), (int)(bitmap.PixelHeight / dr), WriteableBitmapExtensions.Interpolation.Bilinear);
bitmap = bitmap.Crop(new Rect((bitmap.PixelWidth - rSize.Width) / 2, (bitmap.PixelHeight - rSize.Height) / 2, rSize.Width, rSize.Height));
stream.Seek(0, SeekOrigin.Begin);
bitmap.SaveJpeg(stream, (int)rSize.Width, (int)rSize.Height, 0, 100);
}
else
{
//스트림에만 저장
stream.Seek(0, SeekOrigin.Begin);
bitmap.SaveJpeg(stream, (int)(bitmap.PixelWidth / dr), (int)(bitmap.PixelHeight / dr), 0, 100);
}
isResized = true;
//}
return(isResized);
}
public static WriteableBitmap Resize(Stream stream, Size rSize, bool isCenterCrop)
{
WriteableBitmap bitmap = BitmapFactory.New(0, 0).FromStream(stream);
double dr = JpegHelper.GetMinRatio(bitmap, rSize);
//if (dr > 1) <= 주석 처리하면 축소 뿐만이 아니라 확대까지 된다.
//{
bitmap = bitmap.Resize((int)(bitmap.PixelWidth / dr), (int)(bitmap.PixelHeight / dr), WriteableBitmapExtensions.Interpolation.Bilinear);
//가로/세로를 중심점에 맞추어 잘라내기
if (isCenterCrop)
{
bitmap = bitmap.Crop(new Rect((bitmap.PixelWidth - rSize.Width) / 2, (bitmap.PixelHeight - rSize.Height) / 2, rSize.Width, rSize.Height));
}
//}
return(bitmap);
}