private double GetProportionsFactor(BitmapProportions proportions, double defaultValue)
{
switch (proportions)
{
case BitmapProportions.AspectRatio:
return(UsedAspectRatio);
case BitmapProportions.Original:
return(m_imageSize.Width / m_imageSize.Height);
case BitmapProportions.Square:
return(1.0);
// Portrait
case BitmapProportions.TwoOverThree:
return(2.0 / 3.0);
case BitmapProportions.ThreeOverFive:
return(3.0 / 5.0);
case BitmapProportions.ThreeOverFour:
return(3.0 / 4.0);
case BitmapProportions.FourOverFive:
return(4.0 / 5.0);
case BitmapProportions.FiveOverSeven:
return(5.0 / 7.0);
case BitmapProportions.NineOverSixteen:
return(9.0 / 16.0);
// Landscape
case BitmapProportions.ThreeOverTwo:
return(3.0 / 2.0);
case BitmapProportions.FiveOverThree:
return(5.0 / 3.0);
case BitmapProportions.FourOverThree:
return(4.0 / 3.0);
case BitmapProportions.FiveOverFour:
return(5.0 / 4.0);
case BitmapProportions.SevenOverFive:
return(7.0 / 5.0);
case BitmapProportions.SixteenOverNine:
return(16.0 / 9.0);
default:
return(defaultValue);
}
}
public static string Convert(BitmapProportions proportions)
{
switch (proportions)
{
case BitmapProportions.Custom:
return("Custom");
case BitmapProportions.Original:
return(Strings.Resources.CropOriginal);
case BitmapProportions.Square:
return(Strings.Resources.CropSquare);
// Portrait
case BitmapProportions.TwoOverThree:
return("2:3");
case BitmapProportions.ThreeOverFive:
return("3:5");
case BitmapProportions.ThreeOverFour:
return("3:4");
case BitmapProportions.FourOverFive:
return("4:5");
case BitmapProportions.FiveOverSeven:
return("5:7");
case BitmapProportions.NineOverSixteen:
return("9:16");
// Landscape
case BitmapProportions.ThreeOverTwo:
return("3:2");
case BitmapProportions.FiveOverThree:
return("5:3");
case BitmapProportions.FourOverThree:
return("4:3");
case BitmapProportions.FiveOverFour:
return("5:4");
case BitmapProportions.SevenOverFive:
return("7:5");
case BitmapProportions.SixteenOverNine:
return("16:9");
default:
return(proportions.ToString());
}
}
private BitmapProportions RotateProportions(BitmapProportions proportions)
{
switch (proportions)
{
case BitmapProportions.Original:
case BitmapProportions.Square:
default:
return(proportions);
// Portrait
case BitmapProportions.TwoOverThree:
return(BitmapProportions.ThreeOverTwo);
case BitmapProportions.ThreeOverFive:
return(BitmapProportions.FiveOverThree);
case BitmapProportions.ThreeOverFour:
return(BitmapProportions.FourOverThree);
case BitmapProportions.FourOverFive:
return(BitmapProportions.FiveOverFour);
case BitmapProportions.FiveOverSeven:
return(BitmapProportions.SevenOverFive);
case BitmapProportions.NineOverSixteen:
return(BitmapProportions.SixteenOverNine);
// Landscape
case BitmapProportions.ThreeOverTwo:
return(BitmapProportions.TwoOverThree);
case BitmapProportions.FiveOverThree:
return(BitmapProportions.ThreeOverFive);
case BitmapProportions.FourOverThree:
return(BitmapProportions.ThreeOverFour);
case BitmapProportions.FiveOverFour:
return(BitmapProportions.FourOverFive);
case BitmapProportions.SevenOverFive:
return(BitmapProportions.FiveOverSeven);
case BitmapProportions.SixteenOverNine:
return(BitmapProportions.NineOverSixteen);
}
}
public void SetProportions(BitmapProportions value, bool animate = true)
{
_proportions = value;
var cropScale = m_rectangle.Width * m_imageSize.Width / (m_rectangle.Height * m_imageSize.Height);
var proportionalCropScale = GetProportionsFactor(value, cropScale);
if (cropScale < proportionalCropScale)
{
var cropWidth = m_rectangle.Height * m_imageSize.Height * proportionalCropScale / m_imageSize.Width;
if (cropWidth > 1)
{
var cropHeight = m_rectangle.Width * m_imageSize.Width / proportionalCropScale / m_imageSize.Height;
m_rectangle.Y = Math.Clamp(m_rectangle.Y + (m_rectangle.Height - cropHeight) / 2.0, 0.0, m_imageSize.Height - cropHeight);
m_rectangle.Height = cropHeight;
}
else
{
m_rectangle.X = Math.Clamp(m_rectangle.X + (m_rectangle.Width - cropWidth) / 2.0, 0.0, m_imageSize.Width - cropWidth);
m_rectangle.Width = cropWidth;
}
}
else
{
var cropHeight = m_rectangle.Width * m_imageSize.Width / proportionalCropScale / m_imageSize.Height;
if (cropHeight > 1)
{
var cropWidth = m_rectangle.Height * m_imageSize.Height * proportionalCropScale / m_imageSize.Width;
m_rectangle.X = Math.Clamp(m_rectangle.X + (m_rectangle.Width - cropWidth) / 2.0, 0.0, m_imageSize.Width - cropWidth);
m_rectangle.Width = cropWidth;
}
else
{
m_rectangle.Y = Math.Clamp(m_rectangle.Y + (m_rectangle.Height - cropHeight) / 2.0, 0.0, m_imageSize.Height - cropHeight);
m_rectangle.Height = cropHeight;
}
}
SetRectangle(m_rectangle, animate);
}
public EditMediaPopup(StorageFile file, BitmapProportions proportions = BitmapProportions.Custom, ImageCropperMask mask = ImageCropperMask.Rectangle)
{
InitializeComponent();
Cropper.SetMask(mask);
Cropper.SetProportions(proportions);
if (proportions != BitmapProportions.Custom)
{
Proportions.IsChecked = true;
Proportions.IsEnabled = false;
}
_file = file;
Loaded += async(s, args) =>
{
await Cropper.SetSourceAsync(file, proportions : proportions);
};
}
public void SetProportions(BitmapProportions value, bool animate = true)
{
_proportions = value;
var cropScale = (m_rectangle.Width * m_imageSize.Width) / (m_rectangle.Height * m_imageSize.Height);
var proportionalCropScale = GetProportionsFactor(value, cropScale);
if (cropScale < proportionalCropScale)
{
var cropHeight = ((m_rectangle.Width * m_imageSize.Width) / proportionalCropScale) / m_imageSize.Height;
m_rectangle.Y = Clamp(m_rectangle.Y + (m_rectangle.Height - cropHeight) / 2.0, 0.0, m_imageSize.Height - cropHeight);
m_rectangle.Height = cropHeight;
}
else
{
var cropWidth = ((m_rectangle.Height * m_imageSize.Height) * proportionalCropScale) / m_imageSize.Width;
m_rectangle.X = Clamp(m_rectangle.X + (m_rectangle.Width - cropWidth) / 2.0, 0.0, m_imageSize.Width - cropWidth);
m_rectangle.Width = cropWidth;
}
UpdateTutteCose(m_rectangle, animate);
}
